CN221543405U - Blocking detection device of ship loader and ship loader - Google Patents

Abstract

The utility model provides a blocking detection device of a ship loader and the ship loader, which relate to the field of ship loaders, and comprise an arm support belt conveyor and a chute, wherein a discharging bin is fixedly connected above the chute, a feeding hole connected with the discharging end of the arm support belt conveyor is arranged on the side wall of the discharging bin, the blanking bin is fixedly provided with a first rotation-resistant material level switch, the first rotation-resistant material level switch is provided with a first detection blade positioned in the blanking bin, material is blocked in the blanking bin, and when the material flows upwards from bottom to top to enable the first detection blade to rotate, the first rotation-resistant material level switch is used for triggering a blocking signal. According to the blocking detection device for the ship loader disclosed by the utility model, only when the material is blocked, and the rotation of the first detection blade is blocked by the pressure of the material, the first rotation blocking type material level switch is triggered, which means that a signal can be sent only under the condition of real blocking, and false alarm triggered by small fluctuation or instant contact of the material level is avoided.

Description

Blocking detection device of ship loader and ship loader

Technical Field

The utility model relates to the technical field of port equipment, in particular to the technical field of ship loaders, and particularly relates to a blockage detection device of a ship loader and the ship loader.

Background

The ship loader is a continuous conveying machine for bulk cargo (such as coal, iron ore, sand aggregate and the like) shipment operation, and is connected with a rear belt conveyor, goods are conveyed onto the ship loader from a storage yard by the belt conveyor, then conveyed to the arm support head by the belt conveyor on the ship loader, and conveyed into a cabin by a chute to complete the whole shipment operation.

In the shipping process, the materials are conveyed and blocked due to overload conveying of the materials on the rear belt or hardening and blocking of the materials on a conveying line of a shipping machine, if the machine is not found to be stopped in time, a large amount of materials are poured out due to light weight, an arm support or a steel wire rope is broken due to heavy weight, and the condition that equipment is damaged is caused, so that it is very important to detect whether material blocking occurs on the conveying line. At present, a travel switch is arranged at the movable window of a bin at two sides of the arm support belt conveyor, if a bin is blocked, a material can extrude the movable window to trigger a travel switch signal, and a blocking signal is generated.

The patent of publication No. CN112173763A discloses a ship loader and cantilever chute, it is equipped with the gate on the middle part of chute body lateral wall, and gate department is equipped with rotatable putty door of opening, and detecting element is used for responding to the putty door and opens, and when the too big scram putty of flow of production transportation flow, the putty door is opened in the material dashing, and detecting element is opened owing to sensing putty door rotation, sends the controller with the response signal, and the corresponding control of controller stops production transportation operation flow.

The scheme disclosed in the above patent can detect the blocking to a certain extent, but has certain defects, specifically, because the conveyed materials fall at a high speed, the scattered materials can strike the blocking door in the falling process of the materials, so that the blocking door slightly rotates, and the travel switch is triggered to send out an induction signal, so that the stability of the method in the actual operation process is extremely poor, equipment is stopped due to error signals, and the operation efficiency of the ship loader is seriously influenced.

Disclosure of utility model

In view of the above, the utility model provides a blocking detection device of a ship loader and the ship loader, which are used for solving the problems that equipment is stopped and the operation efficiency of the ship loader is affected due to the fact that error signals are easy to occur in the blocking detection means of the ship loader in the prior art.

The technical scheme of the utility model is realized as follows:

The utility model provides a blocking detection device of a ship loader, which comprises a cantilever crane belt conveyor and a chute arranged below a discharge end of the cantilever crane belt conveyor, wherein a discharging bin is fixedly connected above the chute, a feed inlet connected with the discharge end of the cantilever crane belt conveyor is formed in the side wall of the discharging bin, a first rotation blocking type material level switch is fixedly arranged on the discharging bin, the first rotation blocking type material level switch is provided with a first detection blade positioned in the discharging bin, and when materials flow from bottom to top to cause the first detection blade to be blocked, the first rotation blocking type material level switch is used for triggering a blocking signal.

On the basis of the technical scheme, preferably, the first rotation-resistant material level switch further comprises a first driving unit for driving the first detection blades to rotate, a first rotating rod is connected between the first driving unit and the first detection blades, the first driving unit is fixedly arranged above the outer wall of the blanking bin, one end of the first rotating rod, far away from the first driving unit, is movably inserted into the blanking bin, the first detection blades are laterally fixed and arranged at the bottom end of the first rotating rod, the first detection blades are perpendicular to the first rotating rod, and the axial direction of the first rotating rod is parallel or perpendicular to the axial direction of the blanking bin.

Further, preferably, a first protection cover is further arranged between the first rotation-resistant material level switch and the blanking bin, the first protection cover is of a conical structure, a small end of the first protection cover is movably sleeved on the first rotating rod, a large end of the first protection cover is sleeved on the periphery of the first detection blade, and the first protection cover is fixedly connected with the inner wall of the blanking bin.

On the basis of the technical scheme, preferably, the chute is of a telescopic structure, the bottom end of the chute is provided with a discharge barrel of a conical structure, a second rotation-resisting type material level switch is fixedly arranged on the discharge barrel, the second rotation-resisting type material level switch is provided with a second detection blade positioned in the discharge barrel, material in the discharge barrel is blocked, and when the material flows from bottom to top to enable the second detection blade to rotate and be blocked, the second rotation-resisting type material level switch is used for triggering a blocking signal.

Further, preferably, the second rotation-resistant material level switch further comprises a second driving unit for driving the second detection blades to rotate, a second rotating rod is connected between the second driving unit and the second detection blades, an installation cover is fixedly arranged on the side wall of the discharge cylinder and is communicated with the inside of the discharge cylinder, the second driving unit is fixedly arranged at the top of the installation cover, one end of the second rotating rod, far away from the second driving unit, movably stretches into the installation cover, the second detection blades are located inside the installation cover, the second detection blades are laterally fixed at the bottom end of the second rotating rod, and the axial direction of the second rotating rod is parallel to the axial direction of the discharge cylinder and perpendicular to the second rotating rod.

Still further, preferably, a protection plate is fixedly arranged at the top of the joint of the inner wall of the discharge cylinder and the mounting cover, and the bottom end of the protection plate is lower than or equal to the bottom end of the second detection blade.

On the basis of the technical scheme, preferably, the feeding end of the arm support belt conveyor is further provided with a feeding bin, a third rotation-resisting type material level switch is fixedly arranged on the feeding bin, the third rotation-resisting type material level switch is provided with a third detection blade positioned in the feeding bin, material in the feeding bin is blocked, and when the material flows from bottom to top to enable the third detection blade to rotate, the third rotation-resisting type material level switch is used for triggering a blocking signal.

Further, preferably, the third rotation-resistant material level switch further comprises a third driving unit for driving the third detection blade to rotate, a third rotating rod is connected between the third driving unit and the third detection blade, the third driving unit is fixedly arranged on the outer wall of the feeding bin, one end of the third rotating rod, far away from the third driving unit, is movably inserted into the feeding bin, the third detection blade is laterally fixed at the bottom end of the third rotating rod, the third detection blade is perpendicular to the third rotating rod, and the axial direction of the third rotating rod is perpendicular to the axial direction of the feeding bin.

Still further, preferably, still be provided with the third protection casing between third resistance-to-rotation material level switch and the material loading feed bin, the third protection casing is fixed to be set up in the material loading feed bin inside, and the third protection casing cage is in the top of third dwang and third detection blade, and the bottom of third protection casing is less than or equal to the bottom of second detection blade.

The utility model also discloses a ship loader, which comprises the ship loader blocking detection device according to the first aspect, a frame and a pitching winding system arranged on the frame, wherein the pitching winding system is connected with the arm support belt conveyor, and a pin load sensor is arranged on the pitching winding system and used for detecting the arm support belt conveyor and the chute barrel load.

Compared with the prior art, the utility model has the following beneficial effects:

(1) Through setting up first formula material level switch that hinders soon on last feed bin upper portion, first formula material level switch that hinders soon is hindered through the rotation of first detection blade, in time monitors the inside material level condition of unloading feed bin. Under normal conditions, the material flows in the material discharging bin from top to bottom to the walking tube, when the material is blocked at the lower part of the material discharging bin, the material is accumulated from bottom to top in the material discharging bin, when the material is blocked to a certain degree, the normal rotation of the first detection blade is blocked, and the first rotation blocking type material level switch can trigger a blocking signal. Only when the material is blocked, and the pressure of the material makes the first detection blade rotate blocked, the first rotation-resistant material level switch can be triggered, which means that a signal can be sent only under the condition of real material blocking, and false alarm triggered by small fluctuation or instant contact of the material level is avoided.

(2) Through still being provided with first protection casing between first rotation-resistant material level switch and unloading feed bin, first protection casing is conical structure, no matter first dwang is vertical setting in the unloading feed bin, or the level sets up in the unloading feed bin, first protection casing all centers on the tip that detects the blade at first, can avoid the material to splash and cause the collision to first detection blade, only the material takes place to block up, and when the side contact of material and first detection blade, the material plays the effect of blockking up to the rotation of first detection blade, the first detection blade of the collision of scattered material in the avoiding unloading feed bin of great probability, avoid first detection blade to block up in the twinkling of an eye and take place signal false triggering, reduce the impaired probability of first detection blade simultaneously.

(3) The second rotation-resistant material level switch is arranged on the discharging barrel at the bottom end of the sliding barrel, so that the material blocking condition in the sliding barrel can be monitored, and the safety risk caused by the material blocking can be greatly reduced;

(4) Through fixedly setting up the guard plate at row feed cylinder inner wall and installing cover junction top, the guard plate is the slope setting, and the bottom of guard plate inclines towards row feed cylinder center department, sets up from this, and the material falls back in the swift current section of thick bamboo from the unloading feed bin, through the water conservancy diversion of guard plate, can avoid the material to enter into the installing cover inside to effectively avoid the material to splash and touch the second and detect the blade, reduce the risk of misinformation and damage.

(5) Through the setting of first formula material level switch that hinders soon, second and third and hinder soon formula material level switch, can carry out the material to the direction of transmission both ends of cantilever crane belt feeder and jam the detection, carry out the jam detection to swift current section of thick bamboo department simultaneously for the material flow state of entire system can all obtain effective control. Once any monitoring point is blocked, the material blockage can be detected and an alarm can be sent out rapidly.

(6) The pin roll load sensor is arranged on the pitching winding system and used for detecting the load of the arm support belt conveyor and the chute, and the pin roll load sensor monitors the load conditions of the whole arm support belt conveyor and the chute, so that the blocking detection method is full-area, is not only limited to single-point detection, but also increases the detection comprehensiveness, and further improves the effectiveness of protection measures.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic plan view of a ship loader according to the present disclosure;

FIG. 2 is a schematic plan view of a blanking bunker according to the present disclosure;

FIG. 3 is a schematic diagram of a first rotation-resisting material level switch mounting structure in a blanking bin according to the present utility model;

FIG. 4 is a schematic view of another installation structure of a first rotation-resisting material level switch in a blanking bin according to the present utility model;

FIG. 5 is a schematic diagram of the installation structure of the chute and the second rotation-resisting type level switch;

FIG. 6 is a schematic diagram of a third rotation-resisting type level switch according to the present utility model;

FIG. 7 is a schematic illustration of a balance beam configuration in a pitch winding system of the present disclosure;

FIG. 8 is a plan cross-sectional view taken at A-A of FIG. 7;

Reference numerals:

1. Arm support belt conveyor; 2. a chute; 3. a blanking bin; 31. a feed inlet; 4. a first rotation-resistant material level switch; 41. a first detection blade; 42. a first driving unit; 43. a first rotating lever; 44. a first shield; 5. a discharge cylinder; 6. a second rotation-resistant material level switch; 61. a second detection blade; 62. a second driving unit; 63. a second rotating lever; 51. a mounting cover; 52. a protection plate; 7. a feeding bin; 8. a third rotation-resistant material level switch; 81. a third detection blade; 82. a third driving unit; 83. a third rotating lever; 84. a third shield; 9. a pitch winding system; 10. a pin load sensor; 11. a frame.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1, in combination with fig. 2, an embodiment of the utility model provides a blocking detection device of a ship loader, which comprises a boom belt conveyor 1 and a chute 2 arranged below a discharge end of the boom belt conveyor 1, wherein the boom belt conveyor 1 is used for conveying materials from land to a cargo compartment of a ship so as to realize continuous and efficient material conveying. The chute 2 is used for guiding the material conveyed by the boom conveyor 1 into the hold of the ship or other designated location.

In order to smoothly guide the material transmitted on the arm support belt conveyor 1 into the chute barrel 2, the discharging bin 3 is fixedly connected above the chute barrel 2, wherein the discharging bin 3 is of a barrel structure, and a feeding hole 31 connected with the discharging end of the arm support belt conveyor 1 is formed in the side wall of the discharging bin 3, so that the material transmitted on the arm support belt conveyor 1 can enter the discharging bin 3 through the feeding hole 31 and be smoothly guided into the chute barrel 2.

In the actual operation process, the overload conveying of the rear materials or the hardening and blocking of the materials on the conveying line of the ship loader can cause the blocking phenomenon after the materials enter the blanking bin 3, and if the machine is not found to be stopped in time, the materials can overflow and incline on the arm support belt conveyor 1.

In order to solve the problems, in the prior art, a travel switch is usually arranged at a movable window of a bin at the end part of the arm support belt conveyor 1, if a bin is blocked, a material can squeeze the movable window to trigger a travel switch signal, a blocking signal is generated, and as the conveyed scattered moving material can strike the movable window, the method has extremely poor stability in the actual operation process, and is easy to generate error signals to cause equipment to stop, so that the operation efficiency of the ship loader is seriously affected.

In order to solve the technical problems, the utility model adopts the scheme that a first rotation-resistant material level switch 4 is fixedly arranged on a blanking bin 3, the first rotation-resistant material level switch 4 is provided with a first detection blade 41 which is positioned in the blanking bin 3, and when materials in the blanking bin 3 are blocked, and the materials flow from bottom to top to prevent the first detection blade 41 from rotating, the first rotation-resistant material level switch 4 is used for triggering a blocking signal.

Specifically, the first rotation-resisting type material level switch 4 monitors the material level condition inside the discharging bin 3 in time by checking whether the rotation of the first detecting blade 41 is blocked. Under normal conditions, materials flow in the feeding bin 3 from top to bottom to the walking barrel, when the materials are blocked in the feeding bin 3, the materials are accumulated from bottom to top in the feeding bin 3, and when the materials are blocked to a certain degree, the normal rotation of the first detection blade 41 is blocked, and the first rotation-resisting type material level switch 4 triggers a blocking signal. In this embodiment, the first rotation-blocking level switch 4 is triggered only when the material is blocked and the pressure of the material is sufficient to block the rotation of the first detection blade, which means that a signal is sent only in the case of a true blocking, avoiding false alarms due to small fluctuations or momentary contact of the level.

In some embodiments, a time delay may be provided in the circuit design of the first rotation-blocking level switch 4, which will trigger the blanking signal only after a certain time of blocking of the first detection blade 41. Thus, false alarms caused by instantaneous material flow fluctuation or temporary blockage can be avoided.

Referring to fig. 2-4, the first rotation-resisting level switch 4 further includes a first driving unit 42 for driving the first detecting blade 41 to rotate, where the first driving unit 42 is preferably a motor, a first rotating rod 43 is connected between the first driving unit 42 and the first detecting blade 41, and the first driving unit 42 can drive the first rotating rod 43 to drive the first detecting blade 41 to rotate at a low speed through the first rotating rod 43. It should be noted that the first rotation-resisting type level switch 4 further includes a micro switch or a sensor, and when the material prevents the first detecting blade 41 from rotating, the torque of the first rotating rod 43 increases, and the micro switch or the sensor is triggered by a series of mechanical linkage mechanisms (such as a spring and a torque limiting device) to send a level signal.

It should be noted that, the above-mentioned first rotation-resisting type level switch 4 is configured in the prior art.

In order to realize that the first rotation-resistant material level switch 4 can detect material blockage in the blanking bin 3, the embodiment shows the installation mode of the first rotation-resistant material level switch in the blanking bin 3.

The first driving unit 42 is fixedly arranged above the outer wall of the blanking bin 3, one end, far away from the first driving unit 42, of the first rotating rod 43 is movably inserted into the blanking bin 3, the first detecting blade 41 is laterally fixedly arranged at the bottom end of the first rotating rod 43, the first detecting blade 41 is perpendicular to the first rotating rod 43, and the axial direction of the first rotating rod 43 is parallel or perpendicular to the axial direction of the blanking bin 3.

Specifically, referring to fig. 4, when the axial direction of the first rotating rod 43 is parallel to the axial direction of the blanking silo 3, the first driving unit 42 is fixedly installed at the top of the blanking silo 3, and the first rotating rod 43 is vertically disposed in the blanking silo 3. Referring to fig. 3, when the axial direction of the first rotating lever 43 is perpendicular to the axial direction of the discharging bin 3, the first driving unit 42 is fixedly installed on the outer sidewall of the discharging bin 3, and the first rotating lever 43 is horizontally disposed in the discharging bin 3. It should be noted that, when the first rotating rod 43 is horizontally disposed, the entire first rotation-resisting level switch 4 is located right above the feed inlet 31, so that after the material enters the discharging bin 3 from the feed inlet 31, the material can flow to the opposite side of the first detecting blade 41, so as to avoid the collision between the material and the first detecting blade 41.

The first detecting blade 41 is perpendicular to the first rotating rod 43, so that a stable detecting surface can be provided in the material flowing process, misreading can be reduced, and detecting accuracy is improved. When the first detecting blade 41 is perpendicular to the first rotating rod 43, the resistance to the flow of material is the greatest, which means that even small material accumulations may result in a blocked rotation of the first blade, thus triggering the level switch, which is advantageous for improving the detection sensitivity to clogging.

Because the material belongs to high-speed motion in the conveying process in the blanking bin 3, the situation that the scattered material touches the first detection blade 41 exists, and the rotation of the first blade is possibly blocked to generate signal false triggering, more importantly, the material can collide with the first detection blade 41 at a high speed in the splashing process, so that the first detection blade 41 is damaged, and the use is influenced.

For this reason, in this embodiment, a first protection cover 44 is further disposed between the first rotation-preventing type level switch 4 and the discharging bin 3, and the first protection cover 44 has a conical structure. The small end of the first protective cover 44 is movably sleeved on the first rotating rod 43, the large end of the first protective cover 44 is sleeved on the periphery of the first detection blade 41, and the first protective cover 44 is fixedly connected with the inner wall of the blanking bin 3.

Whether the first rotating rod 43 is vertically arranged in the blanking bin 3 or horizontally arranged in the blanking bin 3, the first protective cover 44 surrounds the outer peripheral side of the first detection blade 41, so that the material can be prevented from splashing to collide with the end part of the first detection blade 41, the blocking effect is only achieved on the material, and when the material contacts with the side surface of the first detection blade 41, the material can block the rotation of the first detection blade 41, the situation that the scattered material in the blanking bin 3 collides with the first detection blade 41 is avoided, the first detection blade 41 is prevented from being blocked instantaneously and is triggered by signal errors, and meanwhile, the damage probability of the first detection blade 41 is reduced.

In the above embodiment, the first protection cover 44 has a conical structure, so that when the material enters into the first protection cover 44 to contact with the surface of the first detection blade 41 and prevent the first detection blade 41 from rotating, the material can be smoothly separated from the first protection cover 44 when the blockage is cleared.

In this embodiment, the chute 2 is of a telescopic structure, and the length of the chute can be adjusted according to different loading requirements, so that the device can adapt to different loading or unloading scenes, and the use flexibility of the device and the capability of adapting to different working environments are improved.

Referring to fig. 5, the bottom end of the chute 2 is provided with a discharge cylinder 5 with a conical structure, the discharge cylinder 5 with the conical structure is beneficial to smooth discharge of materials, the design can reduce accumulation and blockage of the materials in the discharge process, and particularly for the materials with easy fluidity, the conical structure is beneficial to maintaining the continuity of the material flow. In addition, the discharging cylinder 5 with the conical structure is convenient for installing the telescopic chute 2.

The second rotation-resistant material level switch 6 is fixedly arranged on the discharge cylinder 5, the second rotation-resistant material level switch 6 is provided with a second detection blade 61 positioned in the discharge cylinder 5, material is blocked in the discharge cylinder 5, and when the material flows from bottom to top to prevent the second detection blade 61 from rotating, the second rotation-resistant material level switch 6 is used for triggering a blocking signal.

When the material in the chute 2 is conveyed to the cargo hold on the ship, the material falls down at a high speed, so that a material pile can be formed after the material falls into the ship cabin, the height is changed, the chute 2 is not retracted in time at the moment, and the material is possibly buried, so that the blockage is caused. For this reason, when the material floods the discharge cylinder 5 at the bottommost end of the chute 2, the material flows from bottom to top and is jammed inside the discharge cylinder 5, and at this time, when the material hinders the normal rotation of the second detection blade 61 in the discharge cylinder 5, the second rotation-preventing level switch 6 will trigger an alarm in time. The instant feedback mechanism can help operators to respond quickly, measures are taken to solve the problem of blocking, the downtime is reduced, and the production efficiency is improved.

In this embodiment, the second rotation-resistant level switch 6 further includes a second driving unit 62 for driving the second detecting blade 61 to rotate, a second rotating rod 63 is connected between the second driving unit 62 and the second detecting blade 61, the second detecting blade 61 is laterally fixed at the bottom end of the second rotating rod 63, and the second detecting blade 61 is perpendicular to the second rotating rod 63. The second rotation-resistant level switch 6 has the same structure as the first rotation-resistant level switch 4.

In order to facilitate the installation of the second rotation-resistant material level switch 6 on the discharge barrel 5 with the conical structure, in this embodiment, the installation cover 51 is fixedly arranged on the side wall of the discharge barrel 5, the installation cover 51 is communicated with the inside of the discharge barrel 5, the second driving unit 62 is fixedly arranged at the top of the installation cover 51, one end of the second rotating rod 63, far away from the second driving unit 62, movably stretches into the installation cover 51, the second detecting blade 61 is positioned inside the installation cover 51, and the axial direction of the second rotating rod 63 is parallel to the axial direction of the discharge barrel 5.

From this, the setting, the second detects blade 61 is located the installation cover 51, the material enters into swift current section of thick bamboo 2 by unloading feed bin 3, in the high-speed whereabouts in-process of material, owing to arrange the feed cylinder 5 and be the toper setting, the material can the significantly reduce material splash the risk in the installation cover 51 after falling into arrange the feed cylinder 5, thereby avoid the material of whereabouts in-process to the mistake touching of second detection blade 61, only pile up with the flexible swift current section of thick bamboo 2 inside of cabin contact, the material flows from down up and enters into the time of arranging feed cylinder 5 and the contact of second detection blade 61 from flexible swift current section of thick bamboo 2 inside, the rotation of second detection blade 61 is blocked, thereby trigger the blocking signal.

In order to further avoid falling materials from splashing into the mounting cover 51 and touching the second detection blades 61, a protection plate 52 is fixedly arranged at the top of the joint of the inner wall of the discharge barrel 5 and the mounting cover 51 in the embodiment, and the bottom end of the protection plate 52 is lower than or equal to the bottom end of the second detection blades 61. Preferably, the guard plate 52 is the slope setting, and the bottom of guard plate 52 inclines towards row feed cylinder 5 center department, sets up from this, and the material falls back in swift current section of thick bamboo 2 from unloading feed bin 3, through the water conservancy diversion of guard plate 52, can avoid the material to enter into inside the installation cover 51 to effectively avoid the material to splash and touch second detection blade 61, reduce the risk of misinformation and damage.

In the conveying process of the arm support belt conveyor 1, materials are generally conveyed to the feeding end of the arm support belt conveyor 1 by using a rear belt conveyor, and in order to enable the materials to be uniformly conveyed to the feeding end of the arm support belt conveyor 1, a feeding bin 7 is generally arranged at the feeding end of the arm support belt conveyor 1, and the top opening of the feeding bin 7 is used for receiving the materials conveyed by the rear belt conveyor. Because the rear belt conveyor may have overload transmission in the process of transmitting materials, or the volume of the materials is large, the risk of blocking the feeding bin 7 exists.

For this reason, referring to fig. 6, in this embodiment, a third rotation-resisting type level switch 8 is fixedly disposed on the feeding bin 7, the third rotation-resisting type level switch 8 has a third detecting blade 81 located in the feeding bin 7, and when the material in the feeding bin 7 is blocked, and the material flows from bottom to top to prevent the rotation of the third detecting blade 81, the third rotation-resisting type level switch 8 is used for triggering a blocking signal.

The third rotation-resisting type material level switch 8 further comprises a third driving unit 82 for driving the third detection blade 81 to rotate, a third rotating rod 83 is connected between the third driving unit 82 and the third detection blade 81, the third detection blade 81 is fixedly arranged at the bottom end of the third rotating rod 83 in a side-standing mode, and the third detection blade 81 is perpendicular to the third rotating rod 83. In the present embodiment, the third rotation-blocking level switch 8 has the same structure as the first rotation-blocking level switch 4.

Because the material needs to get into by material loading silo 7 top, consequently the third hinders soon material level switch 8 can not set up at material loading silo 7 top, and this can cause material transmission efficiency to reduce, and for this reason, this embodiment is fixed to be set up on material loading silo 7 outer wall with third drive unit 82, and the one end activity that third dwang 83 kept away from third drive unit 82 inserts in the material loading silo 7, and the axial direction of third dwang 83 is perpendicular with the axial direction of material loading silo 7. Therefore, only the third rotating rod 83 and the third detecting blade 81 are located inside the feeding bin 7, and occupation of the space of the feeding bin 7 is reduced.

Meanwhile, in order to protect the third detection blade 81, in this embodiment, a third protection cover 84 is further provided between the third rotation-resisting material level switch 8 and the feeding bin 7, the third protection cover 84 is fixedly provided inside the feeding bin 7, and the third protection cover 84 is covered above the third rotating rod 83 and the third detection blade 81, and the bottom end of the third protection cover 84 is lower than or equal to the bottom end of the second detection blade 61.

From this, set up, the material is got into the back by the top of material loading feed bin 7, is blockked by third protection casing 84, can avoid the material to directly strike third detection blade 81, only when the inside jam that takes place at material loading feed bin 7, the material piles up at material loading feed bin 7 inside from bottom to top, after the material contacts with the inside third detection blade 81 of third protection casing 84 to realize blockking up the rotation of third detection blade 81, and then trigger putty signal.

In the above embodiment, through the arrangement of the first rotation-resisting type material level switch 4, the second rotation-resisting type material level switch 6 and the third rotation-resisting type material level switch 8, the two ends of the conveying direction of the arm support belt conveyor 1 can be subjected to material blockage detection, and simultaneously, the position of the chute 2 is subjected to blockage detection, so that the material flow state of the whole system can be effectively monitored. Once any monitoring point is blocked, the material blockage can be detected and an alarm can be sent out rapidly.

The utility model also discloses a ship loader, which is shown by referring to figures 1, 7 and 8, and comprises a ship loader blocking detection device, a frame 11 and a pitching winding system 9 arranged on the frame 11, wherein the pitching winding system 9 is connected with the arm support belt conveyor 1 and is used for controlling the pitching angle of the operation of the arm support belt conveyor 1, and a pin roll load sensor 10 is arranged on a balance beam of the pitching winding system 9 and is used for detecting the load of the arm support belt conveyor 1 and the chute 2. The pitch winding system 9 disclosed in this embodiment is a pitch winding system, which is the prior art.

The method comprises the steps of firstly calculating normal loading load data of the arm support belt conveyor 1 at any angle according to a stress analysis algorithm, comparing the load data with unloading load data which is detected in real time and subjected to filtering treatment, and when the real-time load data reach a trigger alarm position, automatically stopping loading the ship and giving out audible and visual alarm. The detection mode relates to the detection of the blocking materials in the whole areas of the arm support belt conveyor 1 and the chute barrel 2, so that the blocking materials are more comprehensively protected, and the safety of the ship loader is greatly improved.

Specifically, in the three-dimensional design calculation, the calculation formula of load data of normal shipment of any pitching angle of the ship loader can be obtained by adopting a simplified model as follows: the total weight of the arm support belt conveyor 1, the chute 2, conveying materials and accessory devices thereof is M, the distance L1 between the gravity center of the mechanism and the pitching twisting point is L2, the distance between the supporting steel wire rope and the pitching twisting point (namely the steel wire rope arm) is L2, the pitching angle of the arm support belt conveyor 1 is theta (the downward pitching is positive, the upward pitching is negative), the multiplying power of the steel wire rope is a fixed value a, the number of the steel wire ropes is a fixed value b, and then the theoretical stress of a single steel wire rope is as follows:

the pin shaft load sensor is arranged in the middle of the steel wire rope, and the stress of the pin shaft load sensor is the sum of the stress of the steel wire ropes at two sides, namely:

It is noted that the above calculation formula is calculated according to the mechanical structure of the pitch winding system, and does not involve control of the computer program.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a shipment machine putty detection device, its includes cantilever crane belt feeder (1) and sets up swift current section of thick bamboo (2) in cantilever crane belt feeder (1) discharge end below, its characterized in that: the feeding device is characterized in that a blanking bin (3) is fixedly connected to the upper portion of the chute (2), a feeding hole (31) connected with the discharging end of the arm support belt conveyor (1) is formed in the side wall of the blanking bin (3), a first rotation-resistant type material level switch (4) is fixedly arranged on the blanking bin (3), the first rotation-resistant type material level switch (4) is provided with a first detection blade (41) located in the blanking bin (3), blocking occurs to materials in the blanking bin (3), and when the materials flow upwards from below to enable the first detection blade (41) to rotate and be blocked, the first rotation-resistant type material level switch (4) is used for triggering blocking signals.

2. The ship loader lock detection device of claim 1, wherein: the first rotation-resistant material level switch (4) further comprises a first driving unit (42) for driving the first detection blades (41) to rotate, a first rotating rod (43) is connected between the first driving unit (42) and the first detection blades (41), the first driving unit (42) is fixedly arranged above the outer wall of the blanking bin (3), one end of the first rotating rod (43) away from the first driving unit (42) is movably inserted into the blanking bin (3), the first detection blades (41) are laterally fixed and arranged at the position, away from the bottom, of the first rotating rod (43), the first detection blades (41) are perpendicular to the first rotating rod (43), and the axial direction of the first rotating rod (43) is parallel or perpendicular to the axial direction of the blanking bin (3).

3. The ship loader lock detection device according to claim 2, wherein: still be provided with first protection casing (44) between first resistance revolve material level switch (4) and the unloading feed bin (3), first protection casing (44) are conical structure, and on first swivelling lever (43) was located to the tip activity cover of first protection casing (44), the periphery at first detection blade (41) is established to the big pot head of first protection casing (44), fixed connection between first protection casing (44) and the unloading feed bin (3) inner wall.

4. The ship loader lock detection device of claim 1, wherein: the chute barrel (2) is of a telescopic structure, the bottom end of the chute barrel (2) is provided with a discharge barrel (5) of a conical structure, a second rotation-resisting type material level switch (6) is fixedly arranged on the discharge barrel (5), the second rotation-resisting type material level switch (6) is provided with a second detection blade (61) positioned in the discharge barrel (5), material blocking occurs in the discharge barrel (5), and when the material flows from bottom to top to enable the second detection blade (61) to rotate and be blocked, the second rotation-resisting type material level switch (6) is used for triggering a material blocking signal.

5. The ship loader lock detection device of claim 4, wherein: the second rotation-resistant material level switch (6) further comprises a second driving unit (62) for driving the second detection blades (61) to rotate, a second rotating rod (63) is connected between the second driving unit (62) and the second detection blades (61), the side wall of the discharge barrel (5) is fixedly provided with a mounting cover (51), the mounting cover (51) is communicated with the inside of the discharge barrel (5), the second driving unit (62) is fixedly arranged at the top of the mounting cover (51), one end of the second rotating rod (63) far away from the second driving unit (62) is movably stretched into the mounting cover (51), the second detection blades (61) are located inside the mounting cover (51), the second detection blades (61) are fixedly arranged at the bottom end of the second rotating rod (63) in a standing mode, the axial direction of the second rotating rod (63) is parallel to the axial direction of the discharge barrel (5), and the second detection blades (61) are perpendicular to the second rotating rod (63).

6. The ship loader lock detection device of claim 5, wherein: the top of the joint of the inner wall of the discharge cylinder (5) and the mounting cover (51) is fixedly provided with a protection plate (52), and the bottom end of the protection plate (52) is lower than or equal to the bottom end of the second detection blade (61).

7. The ship loader lock detection device of claim 1, wherein: the feeding end of the arm support belt conveyor (1) is further provided with a feeding bin (7), a third rotation-resistant material level switch (8) is fixedly arranged on the feeding bin (7), the third rotation-resistant material level switch (8) is provided with a third detection blade (81) positioned in the feeding bin (7), material blocking occurs in the feeding bin (7), and when the material flows from bottom to top to enable the third detection blade (81) to rotate and be blocked, the third rotation-resistant material level switch (8) is used for triggering a blocking signal.

8. The ship loader lock detection device of claim 7, wherein: the third rotation-resistant material level switch (8) further comprises a third driving unit (82) for driving the third detection blades (81) to rotate, a third rotating rod (83) is connected between the third driving unit (82) and the third detection blades (81), the third driving unit (82) is fixedly arranged on the outer wall of the feeding bin (7), one end, far away from the third driving unit (82), of the third rotating rod (83) is movably inserted into the feeding bin (7), the third detection blades (81) are laterally fixed at the bottom ends of the third rotating rods (83), the third detection blades (81) are perpendicular to the third rotating rods (83), and the axial direction of the third rotating rods (83) is perpendicular to the axial direction of the feeding bin (7).

9. The ship loader lock detection device of claim 8, wherein: still be provided with third protection casing (84) between third resistance revolves material level switch (8) and the material loading feed bin (7), third protection casing (84) are fixed to be set up inside material loading feed bin (7), and third protection casing (84) cage is in the top of third dwang (83) and third detection blade (81), and the bottom of third protection casing (84) is less than or equal to the bottom of second detection blade (61).

10. The ship loader is characterized by comprising the ship loader blocking detection device according to any one of claims 1 to 9, further comprising a frame (11) and a pitching winding system (9) arranged on the frame (11), wherein the pitching winding system (9) is connected with the arm support belt conveyor (1), and a pin load sensor (10) is arranged on the pitching winding system (9) and used for detecting the load of the arm support belt conveyor (1) and the chute (2).