CN216197919U - Cofferdam type pipe rod conveying and discharging device - Google Patents

Abstract

A cofferdam type pipe rod conveying and discharging device comprises five cofferdams, and comprises a near-end auxiliary material rack, a main material rack, an auxiliary material rack and a far-end auxiliary material rack which are respectively arranged into rectangular blocks, the rectangular blocks are arranged from left to right in sequence and are fixed by quick buckles, four upright posts with lifting regulators are arranged at the bottoms of four corners outside the main material rack and the auxiliary material rack, rectangular guide rails with racks in the middle of the top surfaces are respectively arranged at the upper top ends of the front upright post and the rear upright post, a rectangular travelling mechanism which moves in cooperation with the guide rails is arranged on the front rectangular guide rails and the rear rectangular guide rails, a speed reducer is arranged in the middle of the travelling mechanism, two output shafts of the speed reducer are respectively connected with couplings of two rolling mechanisms arranged on the two guide rails, and a drag chain mutually hinged with a drag chain rod is arranged on the rolling mechanism; a grabbing manipulator consisting of a manipulator support frame, a hydraulic cylinder, a fork shearing frame and an electro-permanent magnet is respectively arranged below the front middle part and the rear middle part of the traveling mechanism; a lifting machine for receiving and delivering the pipe rod to the well mouth is longitudinally arranged on the right side of the near-end auxiliary material frame.

Description

Cofferdam type pipe rod conveying and discharging device

Technical Field

The utility model relates to the technical field of oil field and oil well operation, in particular to a cofferdam type pipe rod conveying and discharging device.

Background

At present, the workover operation of an oil well and a water pumping rod in an oil field is mainly performed manually when the oil well and the water pumping rod are put into the well or put out of the well, the in-place discharge of the connecting rod is performed manually, the working procedure is complex, the work is heavy, and the operation is not safe. The cofferdam type pipe rod conveying and discharging device takes self-assembly matching equipment as a guiding idea, all operation automation devices except operation power and lifting equipment are integrated on one chassis, the cofferdam type chassis comprises a cofferdam type chassis, an automatic pipe arrangement device, four parts such as an automatic conveying device and an automatic control system, work of the operation power equipment is independently matched, field installation is simplified, pipe rod discharging is achieved, taking, measuring and oil applying are achieved, remote control of operation such as pipe rod receiving and conveying is achieved, operation safety is improved, labor intensity is reduced, operating personnel are reduced, and operation efficiency is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cofferdam type pipe rod conveying and discharging device, which overcomes the defects in the prior art.

The technical scheme of the utility model is realized by the following modes:

as shown in figures 1 and 2, a cofferdam type pipe pole conveying and discharging device comprises a near-end auxiliary material rack, a main material rack, an auxiliary material rack, a far-end auxiliary material rack, a stop lever, a lifting regulator, a guide rail, a drag chain, a cart, a mechanical arm, a lifter, pillars, quick buckles, a control cabinet and a remote controller, and is characterized in that the near-end auxiliary material rack, the main material rack, the auxiliary material rack and the far-end auxiliary material rack which are composed of cofferdams are sequentially arranged from the left side to the right side, are respectively provided with rectangular environment-friendly cofferdams and are fixed by the quick buckles, four equally parallel pillars with the lifting regulators are arranged outside four corners of the main material rack and the auxiliary material rack, rectangular guide rails with racks arranged in the middle parts of the top surfaces of the front two pillars and the rear two pillars are respectively arranged at the upper top ends of the front two pillars and the rear two pillars, a rectangular travelling crane cross beam with the front end and the rear end matched with the guide rails is arranged on the front and rear rectangular guide rails, a speed reducer is arranged in the middle part of the travelling crane cross beam, two output shafts of the speed reducer are respectively connected with two rolling mechanisms arranged on two guide rails through couplers, and drag chains mutually hinged with drag chain rods are arranged on the rolling mechanisms; the manipulator which is composed of an arched manipulator support frame, a hydraulic cylinder, a scissor bracket and an electro-permanent magnet and is used for grabbing a pipe rod is respectively arranged below the front middle part and the rear middle part of the travelling crane beam, a cart position sensor is arranged at the hinge of the hydraulic cylinder and the scissor bracket, and an electro-permanent magnet material detection sensor is arranged on the electro-permanent magnet; a hydraulic pump station and a control valve group are arranged on the right side of the arched manipulator support frame; a lifting machine for receiving and delivering a pipe rod to a well mouth is longitudinally arranged on the right side of the near-end auxiliary material frame, and a drag chain is arranged between the rear end of a large pulley of the lifting machine and a conveyor base.

As shown in fig. 3 and 4, the cart comprises a main frame, a main frame cofferdam, a speed reducer, two output shafts of the speed reducer are connected with a gear shaft on the rolling mechanism through a connecting rod assembly, a bearing and a coupling; the rolling mechanism comprises two side guard plates, a steel pipe arranged at the upper end of the guard plates, a deep groove ball bearing arranged below one end of the steel pipe, a bearing seat arranged below the steel pipe at the other end, gears arranged on the deep groove ball bearing and the bearing seat, a composite roller assembly arranged below the deep groove ball bearing, and a drag chain connecting hand arranged below the composite roller assembly at the left side, wherein the gears are meshed with racks on the guide rail, the drag chain connecting hand is connected with a drag chain in a drag chain box on the pillar, and the composite roller assembly is matched with the guide rail.

As shown in fig. 5, the manipulator includes an upper manipulator cross brace, a lower manipulator cross brace, two or more scissors forks which are arranged between the upper manipulator cross brace and the lower manipulator cross brace and are hinged to each other, the upper scissors fork and the lower scissors fork are respectively hinged to the upper manipulator cross brace and the lower manipulator cross brace, a hydraulic cylinder is arranged on the manipulator support frame, the lower end of the hydraulic cylinder is fixed on the manipulator support frame, the upper end of the hydraulic cylinder is connected to the upper scissors fork through an angle plate hinge arranged on the upper scissors fork, and two electro-permanent magnets are arranged on two sides of the lower end of the lower manipulator cross brace.

As shown in fig. 6, the lifting machine comprises a sliding platform, a big pulley, a conveyor base, an inclined strut swing arm, a supporting hydraulic cylinder, a trolley driving motor, a push-pull hydraulic cylinder, a trolley, an operating platform end drop switch, a reflected photoelectric switch, a pulley rear end material detection switch and an opposite photoelectric switch, wherein the sliding platform is designed to be a rectangular sliding rail type, the big pulley is designed to be a rectangular shape, a composite roller is longitudinally arranged in the sliding platform, the big pulley is sleeved in the sliding platform and is in sliding fit with the sliding platform, the operating platform end drop switch and the reflected photoelectric switch are arranged at the front end part of the sliding platform, the push-pull hydraulic cylinder, a length measuring sensor, the big pulley rear end material detection switch, the opposite photoelectric switch and a locking magnetic lock are arranged at the front end of the big pulley, the rear end of the push-pull hydraulic cylinder is hinged with the sliding platform, a front end hydraulic cylinder rod is hinged with the big pulley, the rectangular conveyor base is arranged below the sliding platform, the rear end of the sliding platform is hinged to a conveyor base through a drag chain and a motor wheel of a conveying motor, a platform zero position detection switch and a proximity switch are arranged at the upper end of a front support of the conveying base, an inclined support hydraulic cylinder is arranged in the conveyor base, the rear end of the inclined support hydraulic cylinder is connected with the base, a hydraulic cylinder rod is movably fixed in the middle of a triangular support frame, the front end of the triangular support frame is hinged to the conveyor base, the rear end of the triangular support frame is hinged to a trolley, and the other end of the trolley is hinged to the front end of the sliding platform.

As shown in fig. 7, the quick buckle comprises a positioning block, a positioning sleeve, a drawing hook, a positioning pin, a reset spring, a positioning pin sleeve, a support, a handle and a pin shaft, wherein the positioning sleeve assembly and the positioning pin assembly are respectively installed at the equal positions of the two sides of the cofferdam frame, the positioning sleeve assembly comprises a rectangular positioning block and a cylindrical positioning sleeve and is welded on the cofferdam frame on one side, the positioning pin sleeve is welded on the opposite position of the cofferdam frame on the other side, a conical positioning pin and the reset spring are encapsulated in the positioning pin sleeve through the support, the excircle of the positioning pin is matched with the positioning sleeve, the support is fixed on the cofferdam frame through a bolt, the lower end of the L-shaped handle is connected with the support through the pin shaft, and the middle of the L-shaped handle is connected with the drawing hook through the other pin shaft.

Compared with the prior art, the utility model has the following advantages:

safety

1. Intrinsic safety of equipment

The cofferdam type pipe rod conveying and discharging device adopts intelligent modular design, is mutually connected and interlocked, has multiple safety protection, can be independently controlled by functional modules, can also run in a one-key full-automatic mode, and is safe and reliable.

2. Safety of personnel operation

The manual intervention is greatly reduced, the automation of main dangerous operation is realized, and the safety risk of personnel operation is reduced.

(II) practical applicability

1. Is suitable for all well sites

The whole set of equipment adopts the free combination of the standard cofferdams, has flexible arrangement direction and compact and reasonable structure, and can be used after being simply assembled.

2. Applicable to all equipment

The multifunctional remote control workover rig can be matched with various existing minor repair workover rigs (including fixed derrick piggers, wheel type workover rigs, grid electric workover rigs and hydraulic energy storage workover rigs) to realize combined remote or automatic operation.

3. Meet the public operation

The control system adopts intelligent design, a force control interface is arranged in the whole process, touch control is realized, professional training is not needed, and the operation can be realized only by looking at the picture.

4. Compatible mainstream tool

The hydraulic clamp is compatible with the existing operation tools such as an elevator, a lifting ring and a hydraulic clamp which are mainly used in the current operation.

(III) high efficiency

1. Need not to be modified

The cofferdam type pipe rod conveying and discharging device is completely and independently applied, is directly matched for construction, does not need to transform the existing operation equipment, and simplifies the preparation work in earlier stage.

2. Integral transport

The equipment is folded and folded, similar to a common container, achieves the transportation condition of a truck with the length of 11.5 meters, only needs about 1 hour for hoisting preparation time, and is hoisted and transported together with an office and a duty room when moving home.

3. Convenient and fast to place

After the cofferdam is hoisted and placed in place, the cofferdam is butted through the buckles, and then is connected into a whole through the clamping grooves, so that the supporting legs can be used for leveling, and the cofferdam is convenient and fast, simple and practical.

4. High efficiency work

The system completely responds to the operation requirement, the single trip cycle is less than 50 seconds, the continuous long-cycle automatic operation of the whole well is realized, and the working efficiency is improved.

(IV) excellence

1. Data acquisition feedback

And recording operation parameters including time, quantity, speed, depth and the like in the whole process, realizing operation process playback, monitoring in the whole process and ensuring operation quality.

2. Thread coming care

The manipulator adopts strong magnetic suspension push-and-pull, and the screw thread is not abraded in the whole process and is not extruded, so that the oil pipe screw thread, particularly the flanging of the lining oil pipe can be perfectly protected.

3. Flexible protection of pipe rods

The pipe pole snatchs, moves, connects and send, measures, and the whole flexible action of applying oil avoids rigid collision, and system noise is as low as 75 dB.

Compared with the traditional operation mode, the equipment has the following obvious advantages:

1. the classified discharge of the pipe rods is realized. The device has four material racks with different functions, can be reasonably distributed and used as required in operation construction, achieves the purposes of free access of oil pipes, free collection and delivery and mutual noninterference, and avoids a large amount of work of operation workers such as pipe dumping, pipe arrangement, pipe throwing and the like.

2. The positioning of the oil pipe without a cross arm clamping groove is realized. The device owner work or material rest sets up two kinds of oil pipe draw-in grooves of 115mm and 90mm according to actual construction demand, but various 89mm 73mm oil pipes of 115mm draw-in groove successive layer stacking, but 89mm, 73mm, 60mm and following various oil pipes of successive layer stacking can be put things in good order to 100mm draw-in groove successive layer stacking, can accomplish not to take the cross arm successive layer and neatly stack oil pipe, can realize not having artifical intervention automatic access, avoid the operation to take the cross arm, tear the cross arm open, work such as debugging repeatedly reduces operation work load by a wide margin.

3. The non-sensing automatic length measurement of the pipe rod is realized. The device inlays the automatic length measuring function of oil pipe to the machine operation in-process of lifting, and the length measurement is incessant, and the automatic counting is accumulative, has avoided the inaccurate problem of present artifical measurement, has reduced workman's work load. The automatic oil smearing of the oil pipe is realized. The device adopts baffle extruded mode at oil pipe in-process down, and automatic oil pipe of applying is paintd, has avoided artifical the paining, raises the efficiency, ensures operation construction quality.

Drawings

FIG. 1-schematic axial side view of the present invention

Fig. 2-fig. 1 are schematic rear view structures

Fig. 3-schematic structural view of cart 4

Left side view schematic of FIGS. 4-3

FIG. 5-schematic of the structure of the lift 8

FIG. 6-schematic structural view of the robot 6

Fig. 7-schematic structural view of quick buckle 9

FIG. 8-block diagram of the working principle of the present invention

In the figure, 1-stop lever, 2-lifting regulator, 3-guide rail, 4-cart, 4.1-main frame, 4.2-main frame protection weir, 4.3-two side protection plate, 4.4-composite roller assembly, 4.5-deep groove ball bearing, 4.6-gear shaft, 4.8-gear, 4.9-bearing seat, 4.10-bearing, 4.12-connecting rod assembly, 4.13-coupler, 4.14-speed reducer and 4.15-steel pipe; 5-drag chain, 6-mechanical arm, 6.1-mechanical arm upper cross brace, 6.2-upper scissor fork, 6.3-hydraulic cylinder support, 6.4-hydraulic cylinder, 6.5-angle plate, 6.6-pin shaft, 6.7-lower scissor fork, 6.8-mechanical arm lower cross brace and 6.9-electro permanent magnet; 7-upright column, 8-lifting machine, 8.1-big pulley base, 8.3-big pulley, 8.2-supporting frame, 8.4-inclined strut swing arm, 8.5-supporting hydraulic cylinder, 8.6-pullback motor, 8.7-push-pull hydraulic cylinder and 8.8-supporting beam; 9-quick buckle, 9.1-positioning block, 9.2-positioning sleeve, 9.3-drawing hook, 9.4-positioning pin, 9.5-reset spring, 9.6-positioning pin sleeve, 9.7-support, 9.8-handle and 9.9-pin shaft; 10-a far-end auxiliary material rack, 11-a main material rack, 12-an auxiliary material rack and 13-a near-end auxiliary material rack.

Detailed Description

To further disclose the technical scheme of the utility model, the following detailed description is made by embodiments in combination with the attached drawings of the specification:

as shown in figures 1 and 2, a cofferdam type pipe pole conveying and discharging device comprises a near-end auxiliary material rack 13, a main material rack 12, an auxiliary material rack 11, a far-end auxiliary material rack 10, a stop lever 1, a lifting regulator 2, a guide rail 3, a drag chain 5, a cart 4, a manipulator 6, a lifter 8, struts 7, quick buckles 9, a control cabinet and a remote controller, and is characterized in that the near-end auxiliary material rack, the main material rack, the auxiliary material rack and the far-end auxiliary material rack which are composed of cofferdams are sequentially arranged from the left to the right, are respectively provided with rectangular environment-friendly cofferdams and are fixed by the quick buckles 9, four equally parallel struts 7 with the lifting regulators 2 are arranged outside four corners of the main material rack and the auxiliary material rack, a rectangular guide rail with a rack arranged in the middle of the top surface is arranged at the upper top ends of the front upright post and the rear upright post, a rectangular travelling crane beam with the front end and the rear end matched with the guide rail is arranged on the rectangular guide rail, a speed reducer is arranged in the middle of the travelling crane cross beam, two output shafts of the speed reducer are respectively connected with two rolling mechanisms arranged on two guide rails through couplers, and drag chains mutually hinged with drag chain rods are arranged on the rolling mechanisms; a manipulator 6 for grabbing a pipe rod, which consists of an arched manipulator support frame, a hydraulic cylinder, a scissor bracket and an electro-permanent magnet, is respectively arranged below the front middle part and the rear middle part of the travelling crane beam, a cart position sensor is arranged at the hinge of the hydraulic cylinder and the scissor bracket, and an electro-permanent magnet material detection sensor is arranged on the electro-permanent magnet; a hydraulic pump station and a control valve group are arranged on the right side of the arched manipulator support frame; a lifting machine 8 for receiving and delivering a pipe rod to a well mouth is longitudinally arranged on the right side of the near-end auxiliary material frame, and a drag chain 5 is arranged between the rear end of a large pulley of the lifting machine and a conveyor base.

Implementation and requirements

1. Main material rack

Oil pipe 138/184 (89 mm/73 mm) can be stored;

folding size: 11.5X 2.2X 2.64 (length X width X height), weight 8.5 ton;

adjusting the height of the chassis: 200-400 mm

Maximum discharge pipe rod diameter: 115mm

Maximum discharge pipe rod length: 10000mm

Maximum oil pipe discharge capacity: 138/184 (89 mm/73 mm)

2. Auxiliary material rack

The auxiliary material rack is connected with the main material rack and separated by the stand column, and 500 oil pipes which need to be recycled are placed in cooperation with the main material rack and can be stored.

External dimensions (length × width × height, m): 11.5 × 2.2 × 0.35, weighing about 1.6 tons/piece;

maximum discharge pipe rod diameter: 100mm

Maximum discharge pipe rod length: 10000mm

Maximum oil pipe discharge capacity: 500 root (73 mm)

3. Far-end auxiliary material rack

The far-end auxiliary material frame is hinged to the outer side of the auxiliary material frame, occupies a half cofferdam, is mainly used for storing pipe rods which are temporarily not used or to be recovered, and can also be used as a storage rack for delivering the pipe rods to a well for standby.

Maximum discharge pipe rod diameter: the material piling is not limited

Maximum discharge pipe rod length: 10000mm

Maximum oil pipe discharge capacity: 300 root (89 mm)

Maximum load-bearing capacity: less than or equal to 40T

4. Near-end auxiliary material rack

The near-end auxiliary material rack is hinged at the outer side of the conveyor and mainly used for storing sucker rods, tools and pipe rods which are longer than 10 meters, and also used as pipe rods which are not used temporarily, or pipe rods to be recovered and a storage rack for delivering the pipe rods to a well for standby use.

Maximum discharge pipe rod diameter: the material piling is not limited

Maximum discharge pipe rod length: 12000mm

Maximum oil pipe discharge capacity: 200 (89 mm)

Maximum load-bearing capacity: less than or equal to 30T

Automatic calandria device

As shown in fig. 8, the automatic pipe arranging device comprises a guide rail, a cart, a manipulator and four pipe rack holders. The functions of classified discharge, taking, adding, throwing and the like of the pipe rods are realized according to requirements.

Tube rod taking period: less than or equal to 30 s.

The cart is controlled by computer numerical code, and can intelligently determine the grabbing and discharging position.

The manipulator mechanism adopts flexible grabbing and can automatically confirm the grabbing state.

The elevator runs on a big pulley, adopts stepless rope transmission and can complete receiving and sending and push and pull the pipe rod.

The big pulley takes oil pipe to measure the system, but accurate control oil pipe position to accomplish the pipe pole length measurement in transportation process, and count statistics. Pipe rod measurement length range: 0-1200, measurement accuracy: 0.02 percent.

When the oil pipe is fed down, the manipulator can finish the oil application to the screw thread of the oil pipe in the forward feeding process according to the program.

The manipulator can accurately send the pipe rod into various operation stations according to the operation requirement.

Electrical control system

As shown in fig. 8, the electrical control system is composed of an explosion-proof control cabinet, a control switch box, a remote controller, various switch sensors, and the like. The intelligent design is adopted, no entity key is provided, the whole process of force control software operation is visual and clear, and the operation is simple and convenient.

1. Power-on debug

Connecting a main power supply, closing a main brake and turning on a power switch (a three-phase power supply indicator lamp is on); starting a motor of the hydraulic system, and observing whether the output is normal (observing the rotation direction of the motor, wherein the clockwise direction is the correct direction); if not, the motor is immediately stopped. Then the phase is changed, and the motor of the hydraulic system is restarted. Operating the plant into a commissioning state for commissioning of the plant (noting that it is necessary to check whether all the plant actions are flexible or not)

(1) Starting the manipulator, and repeatedly moving to be flexible and good in use;

(2) starting the cart, moving in the whole process, and filling lubricating grease until the cart is flexible and good in use;

(3) starting the lifting machine, checking the hydraulic lifting mechanism and ensuring flexibility and good use;

(4) the wellhead is positioned. And setting the working position by taking the well mouth as a reference and enabling the center of the big pulley and the well mouth to be on the same central line.

2. Preparation of work

(1) Work content determination

Selecting the work content to be carried out step by step, namely a first-level menu (work content: up and down); second level menus (semi-automatic, automatic); three-level menus (model: rod, tube (73/89)); and a four-level menu (a storage position is designated manually, under the condition of not making, the system defaults that the sucker rod and other tools are provided with a near-end auxiliary material rack, and the oil pipe is provided with a far-end auxiliary material rack).

(2) Operating state determination

A pipe lifting rod: the pipe rod in the well is exposed (the driver can observe the pipe by eyes); air chuck chucking (driver operation); the elevator is opened (wellhead operation); the lifter is in a pipe connection state (automatic); the pipe rod is blocked and has spare parts (automatic detection), and the pipe arranging mechanism is in a working state (automatic detection).

A pipe descending rod: determining a material rack where a pipe rod is located (manually setting); the pipe arranging mechanism is in a working state (automatic detection); the manipulator is in a pipe conveying state (automatic);

3. matters of attention

(1) Whether the pipe is lifted or lowered, more than 5 pipes must be manually operated, and the system can be automatically operated after being confirmed to be completely normal.

(2) When any sudden situation occurs in the automatic operation process of the system, the automatic operation can be immediately stopped by the following two methods.

A. When the 'emergency stop' button on the control panel is pressed, the system loses power and stops acting immediately, and after the fault is manually processed, the system restarts to work.

B. The wellhead worker shelters from the wellhead pause photoelectric switch, and wellhead operation is paused immediately, so that faults can be processed in time. After the treatment is finished, the wellhead is shielded again to suspend the photoelectric switch, and the system continues to work.

(3) When the device is used for automatic operation, the automatic control switch works, mainly safe interconnection and interlocking, and the next action can be carried out in a complete in-place manner.

A. The induction distance of the automatic control switch is 5-16 mm, the equipment is moved back to the limit position during adjustment, the power is on, and the switch working lamp is turned on effectively.

B. The induction distance is not suitable to be adjusted to be too small, and collision is avoided during operation.

Lifting pipe rod

(1) After the pipe rod is lifted up and unloaded, the lower end of the pipe rod is pushed to the pipe connection position of the lifting machine (automatic), a travelling car is lowered (operated by a driver), and the pipe rod freely descends on the lifting machine;

(2) the travelling block continues to be lowered until the pipe rod passes through the downward starting switch, the dragging motor is started, the pipe rod is dragged to continue to descend until the pipe rod falls onto the supporting wheel material detection switch, and the lifter stops;

(3) opening and removing the elevator (operation of a wellhead worker), and the wellhead worker guides the elevator to be clamped into the next pipe rod to enter the next pipe lifting process;

(4) after the elevator is removed, the dragging motor is started again (automatically), the pipe rod is dragged to retreat to the length measuring switch, and the length of the pipe rod is measured and recorded; meanwhile, the hydraulic support starts to fall until the hydraulic support is leveled, and the hydraulic support continuously retreats to the material placing position (automatically calculated according to the length of the material and the placing mode) and pauses;

(5) the manipulator grabs the pipe rods and puts the pipe rods into a preset position, and the pipe rods are arranged in order; as shown in fig. 1: the sucker rod and other tools are placed in the near-end auxiliary material rack by default, and the oil pipe is placed in the far-end auxiliary material rack by default to prepare for recovery. If the oil pipe needs to be reused, the oil pipe is stored on a clamping position with a corresponding specification.

(6) After the pipe rod leaves the supporting wheel material detection switch, the lifter returns to the pipe connection position to wait for the next circulation (automatic);

5. lower pipe-entering rod

(1) The equipment enters a pipe descending rod state; the pipe rods are arranged orderly, and the manipulator is in a state of putting the pipe rods in; the elevator is in zero position (automatic).

(2) And the manipulator selects a pipe taking position, automatically walks to the position above the operation position, places the manipulator down, and simultaneously the electro-permanent magnet contacts the pipe rod to continuously press down to the induction switch to grab the oil pipe (if not grabbed, the grabbing action is executed again).

(3) Continuing to lift the cart, starting the cart, and conveying the pipe rods to the cart standby position;

(4) and when the lifting machine returns to the zero position, the cart travels to the position above the supporting wheels, and the mechanical arm is lowered to the induction switch to pause.

(5) Starting the lifting machine to move forward, and extruding sealing grease special for the oil pipe to apply oil to the oil pipe when the rear end of the oil pipe extrudes a baffle of the lifting machine; the manipulator retracts to the zero position, and the grabbing mechanism enters the next cycle;

(6) the lifting machine continues to move forward, and the pipe rod is pushed to pass through the length measuring sensor to measure and record the length; meanwhile, the inclined strut is started to prop up to a preset height, the lifting machine continues to be pushed to a specified distance (the distance from the front end of the oil pipe to the standby working position is automatically calculated by the system), and standby is suspended;

(7) the method comprises the following steps of (1) lowering a travelling block, placing an elevator to the position near a wellhead, opening the elevator, starting a hydraulic cylinder (manual operation) of a lifting machine to push a pipe rod to be above an opening of the elevator (the pushing distance is preset), lifting the travelling block upwards, clamping the pipe rod into the opening of the elevator, and closing the elevator;

(8) continuously lifting the travelling block, dragging the pipe rod to slide upwards along the large pulley rail, and separating the pipe rod from the lifter; the big pulley touches an inductive switch at the front end of the guide rail, a driving motor of the trolley is started, and the big pulley is dragged to retreat under the action of the drag chain and return to the zero position; in the gap, the pipe discharging mechanism takes out the pipe and feeds the material, and the next circulation is carried out;

6. joining pipe rod

In the operation process, when needing to add the pipe pole, equipment gets into semi-automatic mode, and at this moment, the manipulator is got the material and is manual, by remote controller operation, specifically as follows:

(1) the operation panel selects a semi-automatic mode; appointing a material taking rack;

(2) when no pipe rod is arranged on the lifting machine, the manipulator automatically moves to the position above the selected material rack and stops;

(3) after confirming that the pipe rods are correctly arranged at the material taking positions of the material racks, the field worker operates the remote controller to take the materials, the manipulator correctly finishes grabbing the pipe rods, and the field worker confirms that the material taking is successful and returns to the standby position;

(4) when the lifting machine retreats to a zero position, the manipulator lowers the pipe rod to the position above the big pulley, the manipulator stops temporarily and starts to move forwards, when the rear end of the oil pipe extrudes a baffle of the lifting machine, the oil pipe is automatically smeared with oil, and meanwhile, the electro-permanent magnet demagnetizes and releases the pipe rod onto a support wheel of the big pulley; the manipulator retracts to the zero position and enters the next cycle;

7. throwing-out pipe rod

The pipe rod needs to be thrown out in the operation process mainly comprises the following conditions:

(1) lifting well rod

The utility model provides a near-end spare material frame is put to whole acquiescence pendulum regardless of whether retrieve or for use to the sucker rod, and specific work is as follows:

1) and selecting a pipe rod lifting mode on the control panel, and then selecting and lifting the sucker rod. At the moment, the system automatically defaults the near-end auxiliary material rack as a storage rack.

2) Putting the sucker rods, putting the manipulator to the near-end auxiliary material racks one by one, stacking the sucker rods which are rejected or need to be recovered after identification, and waiting for recovery by a professional team; the cross arms are required to be added for recycling, are orderly arranged by field workers and are stored under an oil pipe bridge.

(2) Lifting well pipe

The original well pipe rod is put forward, firstly, the pipe rod which needs to be recovered in the whole well is judged and does not need to be recovered, and the pipe rod which needs to be recovered in the whole well is directly put on a far-end auxiliary material frame and is recovered by a professional team. Not necessarily recovered in a full well, the following can be operated:

the device automatically selects the corresponding specification, screens and stores according to the specification, model and length information of the pipe rod. Defaulting a system: the sucker rod is arranged at the near-end auxiliary material rack; 89mm oil pipe: 89mm screens are arranged one by one; 73mm oil pipe: 73mm screens are arranged in the near-end auxiliary material frame one by one. The pipe rods which can not be reused and need to be completely recycled are directly placed on the auxiliary material rack at the far end for recycling.

(3) Thrown out in the pipe laying process

For the failed oil pipe placed on the clamping position, a control panel can be used by a field worker to mark the failed oil pipe, namely, the pipe rod of the control panel is hooked at the corresponding position of the simulation diagram, so that the system can automatically throw the marked pipe rod to a far-end standby rack in the automatic pipe taking process; the pipe rods which are grabbed in the automatic operation process can be manually rotated and directly thrown out of the designated material rack.

Claims (5)

1. A cofferdam type pipe pole conveying and discharging device comprises a near-end auxiliary material rack (13), a main material rack (12), an auxiliary material rack (11), a far-end auxiliary material rack (10), stop rods (1), a lifting regulator (2), guide rails (3), a drag chain (5), a cart (4), a manipulator (6), a lifting machine (8), support columns (7), a quick buckle (9), a control cabinet and a remote controller, and is characterized in that the near-end auxiliary material rack, the main material rack, the auxiliary material rack and the far-end auxiliary material rack which are composed of cofferdams are sequentially arranged from the left side to the right side, environment-friendly cofferdams which are respectively arranged as rectangular blocks are fixed by the quick buckle (9), four support columns (7) which are in parallel and are provided with the lifting regulator (2) are arranged at the outer sides of four corners of the main material rack and the auxiliary material rack, a rectangular guide rail with a rack arranged in the middle of the top surface is respectively arranged at the upper top ends of the front two upright columns and the rear two upright columns, a rectangular travelling crane cross beam with the front end and the rear end matched with the guide rails to move is arranged on the front rectangular guide rail and the rear rectangular guide rail, a speed reducer is arranged in the middle of the travelling crane cross beam, two output shafts of the speed reducer are respectively connected with two rolling mechanisms arranged on the two guide rails through couplers, and drag chains mutually hinged with drag chain rods are arranged on the rolling mechanisms; a manipulator (6) which is composed of an arched manipulator support frame, a hydraulic cylinder, a scissor bracket and an electro-permanent magnet and is used for grabbing a pipe rod is respectively arranged below the front middle part and the rear middle part of the travelling crane beam, a cart position sensor is arranged at a hinge of the hydraulic cylinder and the scissor bracket, and an electro-permanent magnet material detection sensor is arranged on the electro-permanent magnet; a hydraulic pump station and a control valve group are arranged on the right side of the arched manipulator support frame; a lifting machine (8) for receiving and delivering a pipe rod to a well mouth is longitudinally arranged on the right side of the near-end auxiliary material frame, and a drag chain (5) is arranged between the rear end of a large pulley of the lifting machine and a conveyor base.

2. A weir-type mast transfer discharge apparatus as claimed in claim 1, wherein: the cart comprises a main frame (4.1), a main frame cofferdam (4.2), a speed reducer (4.14), two output shafts of the speed reducer are connected with a gear shaft (4.6) on the rolling mechanism through a connecting rod assembly (4.12), a bearing (4.10) and a coupler (4.13); the rolling mechanism comprises two side guard plates (4.3), a steel pipe (4.15) arranged at the upper end of the guard plates, a deep groove ball bearing (4.5) arranged below one end of the steel pipe, a bearing seat (4.9) arranged below the steel pipe at the other end of the steel pipe, gears (4.8) arranged on the deep groove ball bearing and the bearing seat, a composite roller assembly (4.4) arranged below the deep groove ball bearing, a drag chain connecting hand arranged below the composite roller assembly on the left side, the gears are meshed with racks on the guide rail, the drag chain connecting hand is connected with drag chains (5) in drag chain boxes on the support posts, and the composite roller assembly is matched with the guide rail.

3. A weir-type mast transfer discharge apparatus as claimed in claim 1, wherein: the manipulator includes manipulator stull (6.1) of going up, manipulator stull (6.8) down, establish two or more scissors fork that go up between manipulator stull and the manipulator stull and hinge each other down, go up scissors fork (6.2) and scissors fork (6.7) down and the mutual hinge of manipulator stull and lower manipulator stull respectively with last manipulator stull, be equipped with a pneumatic cylinder (6.4) on the manipulator support frame, the rear end of pneumatic cylinder is fixed on the manipulator support frame, the front end of hydraulic stem is together through establishing the angle plate hinge on the scissors fork, be equipped with two electro-permanent magnet (6.9) in manipulator stull lower extreme both sides down.

4. A weir-type mast transfer discharge apparatus as claimed in claim 1, wherein: the lifting machine comprises a sliding platform (8.1), a big pulley (8.3), a conveyor base (8.2), an inclined strut swing arm (8.4), a supporting hydraulic cylinder (8.5), a trolley driving motor (8.6), a push-pull hydraulic cylinder (8.7), a trolley (8.8), a sliding platform front section position sensor and a big pulley rear end material detection sensor, wherein the sliding platform is designed to be a rectangular sliding rail type, the big pulley is designed to be rectangular, a composite roller is longitudinally arranged in the sliding platform, the big pulley is sleeved in the sliding platform and is in sliding fit with the sliding platform, the front end part of the sliding platform is provided with the position sensor, the front end of the big pulley is provided with the push-pull hydraulic cylinder, a length measuring sensor, a big pulley rear end material detection sensor and a locking magnetic lock, the rear end of the push-pull hydraulic cylinder is hinged with the sliding platform, a front end hydraulic cylinder rod is hinged with the big pulley, the rectangular conveyor base is arranged below the sliding platform, the rear end of the sliding platform is hinged to a conveyor base through a drag chain and a motor wheel of a conveying motor, a platform position sensor is arranged at the upper end of a front support of the conveyor base, an inclined support hydraulic cylinder is arranged in the conveyor base, the rear end of the inclined support hydraulic cylinder is connected with the base, a hydraulic cylinder rod is movably fixed in the middle of a triangular support frame, the front end of the triangular support frame is hinged to the conveyor base, the rear end of the triangular support frame is hinged to a trolley, and the other end of the trolley is hinged to the front end of the sliding platform.

5. A weir-type mast transfer discharge apparatus as claimed in claim 1, wherein: the quick buckle comprises a positioning block (9.1), a positioning sleeve (9.2), a drawing hook (9.3), a positioning pin (9.4), a reset spring (9.5), a positioning pin sleeve (9.6), a support (9.7), a handle (9.8) and a pin shaft (9.9), the cofferdam frame is characterized in that a locating sleeve assembly and a locating pin assembly are respectively arranged at the equivalent positions of two sides of the cofferdam frame, the locating sleeve assembly comprises a rectangular locating block (9.1) and a cylindrical locating sleeve (9.2), the rectangular locating block is welded on the cofferdam frame on one side, the locating pin sleeve (9.6) is welded on the opposite position of the cofferdam frame on the other side, a conical locating pin (9.4) and a reset spring (9.5) are encapsulated in the locating pin sleeve (9.6) through a support (9.7), the excircle of the locating pin (9.4) is matched with the locating sleeve, the support (9.7) is fixed on the cofferdam frame through a bolt, the lower end of an L-shaped handle (9.8) is connected with the support (9.7) through a pin shaft (9.9), and the middle of the L-shaped handle is connected with a drawing hook (9.3) through another pin shaft.

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