Movable manned elevator and lifting work mechanism thereof
Technical field
The present invention relates to a kind of lifting work mechanism for the man-engine and comprise its movable manned elevator.
Background technology
Movable manned elevator is mainly used in the maintenance of the following equipment of horizontal surface, personnel's rescue, the occasions such as transportation of goods and materials.Along with the increase of movable manned elevator range of use, it has received increasing concern.
Existing movable manned elevator adopts parallel four limit type jib structures mostly, this structure mainly is comprised of two arms that two gigs are controlled respectively, wherein single arm is by main arm, horizontal arm head, pull bar, and two steel cable leading sheaves, bases form.Main arm and pull bar two ends are hinged on respectively between horizontal arm head and base and consist of parallelogram sturcutre, two steel cable leading sheaves are arranged on horizontal arm head front and back respectively, the top of two homophony ratios of suspension arm mechanism and middle part respectively connect waling stripe, and the front side of two gigs is installed and laid respectively to two bases side by side.Just adopt this parallelogram jib structure as disclosed a kind of manned lift truck in Chinese patent ZL200610026951.6.This parallel four limit type jib structures can be when the jib changes in amplitude, keeps the cage level, in case but the hanging basket run-off the straight, it can not the adjustment and recovery balance, and the safety of cage is reduced.And the length of this structure jib is fixed, and operating range is limited, only can be the center of circle at main frame cushion cap on the man-engine, and principal arm frame length is the interior operation of the scope of radius.In addition, the gig of two platform independent that this parallel four limit structure hoisting cables adopt, poor synchronization is easy to cause steel rope asynchronous, makes hanging basket have the inclination risk.
Summary of the invention
The object of the invention is to provide a kind of man-engine, solves existing man-engine's jib structure unreasonable, poor synchronization, the problem of poor stability.
Another object of the present invention is to provide a kind of manned lift truck, has optimized the discharging modes of elevator in existing manned lift truck, makes it use the orientation more extensive.
For this reason, the invention provides a kind of lifting work mechanism for the man-engine, comprise turntable stacker, beam mechanism, clump weight, winch assembly, cage, beam mechanism comprises: boom assembly, first end are hinged on the turntable stacker; Amplitude oil cylinder, two ends are connected with turntable stacker and boom assembly respectively, are used for driving boom assembly and vertically rotate around described turntable stacker; Arm head spare is connected to the second end of boom assembly pivotly; Leveling cyclinder, two ends are flexibly connected with boom assembly and arm head spare respectively and form triangular structure, and leveling cyclinder is in order to coordinate described amplitude oil cylinder to control the pivoting angle of the relatively described boom assembly of arm head spare.
According to further improvement of the present invention, arm head spare is provided with the first assembly pulley and the second assembly pulley; The first assembly pulley is by the primary importance along fore-and-aft direction of the first suspention steel cable group suspention cage; The second assembly pulley is by the second place along fore-and-aft direction of the second suspention steel cable group suspention cage; The winch assembly comprises the first reel and the second reel, and the first and second reels are connected the first reel for the folding and unfolding of controlling the first suspention steel cable group with driver train by retarder, and the second reel is used for the folding and unfolding that the steel cable group is suspended in control second in midair.
According to further improvement of the present invention, also comprise conductor rope mechanism, conductor rope mechanism is arranged on the turntable stacker, between beam mechanism and winch assembly; Conductor rope mechanism comprises support body and is supported on two conductor rope pulleys on support body.
According to further improvement of the present invention, the articulated position that each suspends end positions, boom assembly and the turntable stacker of the extension of steel cable between corresponding conductor rope pulley and described arm head spare in midair is configured to parallelogram sturcutre between the articulated position of boom assembly and arm head spare.
According to further improvement of the present invention, conductor rope mechanism also comprises rope winding jib, is arranged on conductor rope mechanism near a side of winch assembly, and between winch assembly and conductor rope pulley, rope winding jib comprises: rotating shaft, two ends rotatably are connected on support body respectively; Guide rod, with the shaft parallel setting, two ends are fixedly connected to respectively on support body; Slippage frame group movably is connected on guide rod, and joins with rotating shaft is adaptive, with the rotation of the rotating shaft axially reciprocating along rotating shaft, is equipped with sheave on each slippage frame, and each sheave drives respectively a suspention steel cable and moves axially with the slippage frame.
According to further improvement of the present invention, be provided with a through hole in the slippage frame, the internal diameter of through hole is greater than the diameter of rotating shaft, the slippage frame is sleeved in rotating shaft by through hole, and the slippage frame also comprises slide block, and slide block is fixedly installed on the slippage frame, and extend to the inside of through hole, an end and rotating shaft screw thread that slide block extends internally join, and when rotating shaft was rotated, slide block drove the slippage frame along the axial motion of rotating shaft.
According to further improvement of the present invention, a wherein end of rotating shaft passes support body and stretches out, and the outward extending part of described rotating shaft is provided with runner and is connected with retarder synchrodrive on the winch assembly.
According to further improvement of the present invention, the first suspention steel cable group and the second suspention steel cable group respectively are provided with three suspention steel cables, be equipped with two annular protrusions on the winch assembly on each reel each reel is divided into three sections folding and unfoldings of controlling respectively a suspention steel cable.
According to further improvement of the present invention, arm spare comprises the arm section that a plurality of telescopicallies successively are set in together, and outermost arm section and turntable stacker are hinged, and the most inboard arm section is connected with arm head spare.
According to further improvement of the present invention, clump weight is provided with the revolution weight balancing oil cylinder, and revolution weight balancing oil cylinder two ends are connected with clump weight and turntable stacker respectively, are used for the driving clump weight and rotate around described turntable stacker.
According to further improvement of the present invention, clump weight has the pocket suitable with the shape of winch assembly, covers the outside of winch assembly when clump weight is packed up with its pocket.
Simultaneously, the present invention also provides a kind of movable manned elevator, comprises the chassis, and the chassis comprises operator's compartment, vehicle frame and explosive motor, this manned lift truck also comprises above-mentioned lifting work mechanism, and man-engine's intermediate station stacker is arranged on the vehicle frame on chassis.
According to further improvement of the present invention, clump weight is provided with suspension connection device away from a side of winch assembly, connects cage in order to hang.
According to further improvement of the present invention, suspension connection device comprises stirrup spare, and stirrup spare is connected with the strut member that cage is provided with.
Advantage of the present invention is as follows:
1. adopt leveling cyclinder and boom assembly and the arm head spare to form stable triangular structure, eliminated in the prior art with the poor synchronization of the arm of two hoister control and the problem of cage poor security and stability.
2. a kind of suspention steel cable folding and unfolding mode of more advantage is provided, and when avoiding arm steel cable debit, the phenomenon of disorder cable, intersection, improved the cage Operation safety.
3. by boom assembly being arranged to telescopic sleeve structure, enlarged the scope that to move.
4. be set to rotating form by clump weight, increased the moment of clump weight one side, improved the load-carrying ability of beam mechanism.
5. by the inside at clump weight, cavity is set, alleviates the load of turntable stacker, and by the cavity with clump weight inside, the suitable structure of Chinese idiom winch is set, make clump weight can cover the outside of winch, reduce the area occupied of clump weight.
6. by away from a side of winch, suspension connection device being set at clump weight, the cage clump weight of stably fitting is connected the stabilized conditions when forming vehicle operating.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
Consist of this specification sheets a part, be used for further understanding accompanying drawing of the present invention and show the preferred embodiments of the present invention, and be used for illustrating principle of the present invention together with specification sheets.In figure:
Fig. 1 shows the structural representation according to the man-engine's who is used for the man-engine of the embodiment of the present invention lifting work mechanism;
Fig. 2 shows the structural representation according to the man-engine's who is used for the man-engine of the embodiment of the present invention lifting work mechanism arm head spare;
Fig. 3 shows the structural representation according to the man-engine's who is used for the man-engine of the embodiment of the present invention lifting work mechanism conductor rope mechanism;
Fig. 4 shows A-A direction structure schematic diagram in Fig. 3; And
Fig. 5 shows the structural representation according to the movable manned elevator of the embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Fig. 1 shows the structural representation according to the man-engine's who is used for the man-engine of the embodiment of the present invention lifting work mechanism.The lifting work mechanism that as shown in Figure 1, should be used for the man-engine comprises: turntable stacker 10; Beam mechanism, clump weight 30, winch assembly 40, cage 50.Beam mechanism and turntable stacker 10 are hinged.Clump weight 30 is connected with the side of turntable stacker 10 away from beam mechanism.Winch assembly 40 is arranged on turntable stacker 10, between beam mechanism 20 and clump weight 30, controls the folding and unfolding of suspention steel cable.Cage 50 is connected with arm head spare 23 by the suspention steel cable.As shown in Figure 2, in the present invention, main by changing the structure of beam mechanism, originally two arms controlling respectively by two gigs are become the boom assembly 21 that is driven by an amplitude oil cylinder 25, the two ends of amplitude oil cylinder 25 are connected with turntable stacker 10 and boom assembly 21 respectively, have solved the problem of two arm poor synchronization.In the present invention, boom assembly 21 first ends and turntable stacker 10 are hinged, and being connected with pivotly an arm head spare 23 away from the second end of turntable stacker 10, the pivoting angle between arm head spare 23 and boom assembly 21 is controlled, makes arm head spare 23 and horizontal surface keep balance.The control of this pivoting angle is to be realized with the leveling cyclinder 27 that boom assembly 21 and arm head spare 23 are flexibly connected respectively by two ends.Form stable triangular structure between leveling cyclinder 27 and boom assembly 21 and arm head spare 23, give arm head spare 23 stable support.By coordinating under regulation and control of leveling cyclinder 27 and amplitude oil cylinder 25, jib head 23 can keep balance with horizontal surface always, make by the suspention steel cable and be suspended in cage 50 and ground maintenance level on arm head spare 23, in a single day when certainly finding cage 50 run-off the straight, the angle that also can adjust between boom assembly 21 and arm head spare 23 by regulating leveling cyclinder 27 makes cage 50 Quick-return balances.So just, working stability and the safety of the lifting work mechanism that is used for the man-engine have been increased substantially.
As shown in Figure 1, be used for man-engine's lifting work mechanism in the present invention, arm head spare 23 is provided with the first assembly pulley and the second assembly pulley; Wherein the first assembly pulley is by the primary importance along fore-and-aft direction of the first suspention steel cable group 411 suspention cages 50; The second assembly pulley is by the second place along fore-and-aft direction of the second suspention steel cable group 431 described cages 50 of suspention; Be provided with the first reel 41 and the second reel 43 in winch assembly 40, the first and second reels are connected with driver train by retarder respectively, winch is mainly as primary mover with electrical motor, be far longer than the rotating speed of reel in winch due to the rotating speed of electrical motor output, therefore must design the wheel word that slows down, here the driving device that slows down is exactly retarder, and the design of retarder is varied, gets final product according to conventional application the of the prior art.In winch 40, the first reel 41 is used for controlling the folding and unfolding of the first suspention steel cable group, and the second reel 43 is used for controlling the folding and unfolding of the second suspention steel cable group.In a kind of preferred embodiment of the present invention, should be used for man-engine's lifting work mechanism, the first suspention steel cable group and the second suspention steel cable group respectively are provided with three suspention steel cables.And be equipped with two annular protrusions in winch assembly 40 on each reel, each reel is divided into three sections folding and unfoldings of controlling respectively a suspention steel cable.In the present invention, in each suspention steel cable group, the number of suspention steel cable is not limited to three, as long as greater than two suspention work that just can realize cage, it can be 4,5, and is even more.but the use of 3 is more suitable, when the number of suspention steel cable in each suspention steel cable group is 2, if in 4 suspention steel cables that two groups are suspended in midair in the steel cable group, 1 fracture is arranged, cage just is in dangerous heeling condition so, the cage of this manned use particularly, its safety is very important, when the number of suspention steel cable in every group is 3, in two groups in 6 suspention steel cables 4 of the outside mainly play the effects of supporting cage 50, 2 middle effects of playing protection cage 50, even in two groups of suspention steel cable groups, 6 suspention steel cables have 1 fracture, other 5 have just been played supporting role at once, guarantee the balance of cage.And all be divided into three sections by two annular protrusions on each reel on winch assembly 40, control respectively the folding and unfolding of a suspention steel cable.Just disorder cable, crossover phenomenon be can not occur at suspention steel cable (steel rope) when folding and unfolding is wound around like this, thereby cage Operation safety, stationarity guaranteed better.As shown in Figure 1, in a kind of specific embodiment, in order to make two groups of suspention steel cable groups the swinging cross situation not occur, the guiding of every suspention steel cable is all realized by two pulleys on arm head spare 23, and these two pulleys are separately positioned on arm head spare 23 near a side of a side of boom assembly 21 and close cage 50.Ground, near in boom assembly 21 1 side rollers, be used for the pulley of guiding the first suspention steel cable group higher than the pulley that is used for the second suspention steel cable group that leads relatively.And be arranged in parallel near the pulley relative ground of a side of cage 50, be used for the pulley of the first suspention steel cable group that leads is distal to the distance between boom assembly 21 pulley that suspends the steel cable group for guiding second in midair.As shown in Figure 3 and Figure 4, in order better to coordinate the folding and unfolding work of 40 pairs of suspention steel cables of winch assembly, the lifting work mechanism that is used for the man-engine in the present invention also comprises a conductor rope mechanism 60, conductor rope mechanism 60 is arranged on turntable stacker 10, between beam mechanism 20 and winch assembly 40; Conductor rope mechanism 60 comprises that support body 61 and two ends are connected to the two conductor rope pulleys 62,63 on support body 61.As a kind of preferably embodiment, the articulated position that each suspends end positions, boom assembly 21 and the turntable stacker 10 of the extension of steel cable between corresponding conductor rope pulley and arm head spare 23 in midair is configured to parallelogram sturcutre between the articulated position of boom assembly 21 and arm head spare.Thus, can guarantee to suspend in midair steel cable is consistent to the length jib head 23 from the reel of winch 40.If winch 40 directly is connected with suspention steel cable between arm head spare 23, so along with rotate vertical rotation of platform stacker 10 of suspension arm mechanism 20, between suspension arm mechanism 20 and winch 30, angle reduces gradually, straight rope distance between arm head spare 23 and winch 40 also reduces gradually, between arm head spare 23 and winch 40, the length of suspention steel cable is the value of a variation so, is unfavorable for like this operation.When a conductor rope mechanism 60 is set between beam mechanism 20 and winch assembly 40, after the suspention steel cable is emitted from the reel of winch, be connected to arm head spare 23 after passing between conductor rope pulley and turntable stacker 10 from conductor rope mechanism 60, thus, by the barrier effect of conductor rope pulley, guarantee that the suspention steel cable remains unchanged to the distance arm head spare 23 from the reel of winch 40.
In order to ensure better suspention steel cable arranging on each reel of winch, be used in the present invention also comprising a rope winding jib on man-engine's the conductor rope mechanism 60 of lifting work mechanism, this rope winding jib is arranged on conductor rope mechanism 60 near a side of winch assembly 40, between winch assembly 40 and conductor rope pulley, this rope winding jib comprises: 69 groups, rotating shaft 67, guide rod 68 and slippage frame.Rotating shaft 67 two ends rotatably are connected on support body 61 respectively.Guide rod 68 be arranged in parallel with rotating shaft 67, and its two ends are fixedly attached to respectively on support body 61; 69 groups, slippage frame, movably be connected on guide rod 68, and join with rotating shaft 67 is adaptive, with the rotation of rotating shaft 67 axially reciprocating along rotating shaft 67, be equipped with conductor rope section 691 on each slippage frame, each conductor rope section 691 drives respectively a suspention steel cable axial motion, in two suspention steel cables one from the first suspention steel cable group, one from the second suspention steel cable group.In 69 groups, slippage frame, the number of slippage frame is identical with number of suspention steel cable in each suspention steel cable group.The suspention steel cable can be along with the movement of slippage frame, on even, the neat reel that is laid on winch 40.In a kind of concrete embodiment, the embodiment that slippage frame 69 axially moves reciprocatingly along rotating shaft 67 with the rotation of rotating shaft 67 can be for being provided with a through hole 693 in slippage frame 69, the internal diameter of this through hole 693 is greater than the diameter of rotating shaft 67, the slippage frame is sleeved in rotating shaft 67 by through hole 693, and the slippage frame also is provided with a slide block 695 that is fixedly connected on slippage frame 69.The inwall of one end penetrated through via holes 693 of slide block 695, and extend to the inside of through hole 693, the end that it extends internally and rotating shaft 67 screw threads join, and when rotating shaft 67 was rotated, slide block 695 drove institute's slippage frame along the axially reciprocating of rotating shaft 67; This crank motion can be accomplished in several ways, as, process bidirectional helical on the axle with rotating shaft 67 (screw mandrel), and be processed as the two dental structures that coordinate with bidirectional helical on slide block 695 and the contacted part of rotating shaft 67.When the suspention steel cable was arranged the both sides of reel, the sidewall of reel was just given the power reverse with one of suspention steel cable, and at this moment, slide block 695 just drives slippage frame 69 and does counter motion, so just realized the slippage frame 69 the crank motion in rotating shaft 67.
in order can fitly to be arranged in order the suspention steel cable on the reel of winch better, the lifting work mechanism that is used for the man-engine in the present invention, between axle drive shaft with reel in conductor rope mechanism 60 shafts 67 and winch 40, a kind of connection mode is set, the rotating speed of rotating shaft 67 and two reels is consistent, in the present invention, penetrate support body 61 and stretch out by the end with rotating shaft 67, part in its extension is provided with a runner 671, be connected by the retarder synchrodrive of controlling drum speed on belt or chain etc. and winch assembly 40, to reach the operating speed of reel and conductor rope mechanism 60 shafts 67 in the synchronous hoister assembly.
In order to increase the operating range of this lifting work mechanism for the man-engine, in the present invention, the arm section that boom assembly 21 can be arranged to be set in together by a plurality of telescopicallies successively consists of, wherein outermost arm section and turntable stacker 10 are hinged, and the most inboard arm section is connected with arm head spare 23.According to required operating range, adjust the collapsing length of boom assembly 21, need in the time of so just reducing work constantly mobile this during for man-engine's lifting work mechanism, the required overwork amount of paying.
In the lifting work mechanism for the man-engine of the present invention, being arranged on turntable stacker 10 can also be by arranging a revolution weight balancing oil cylinder 31 away from the clump weight 30 of beam mechanism 21, this clump weight 30 no longer is fixedly mounted on turntable stacker 10, but can rotate around the point of connection of itself and turntable stacker 10, thus, when clump weight 30 outwards rotates, just increase the moment of clump weight 30 1 sides, and then increased the load-carrying ability of the beam mechanism 20 of turntable stacker 10 opposite sides connections.In the situation that the load-carrying ability of beam mechanism 20 is constant, also can reduce the weight of clump weight 30, alleviate the load of turntable stacker 10.Certainly as a kind of more preferred mode, clump weight 30 can be made as the shape that inside has pocket, and the big or small excellent of this pocket is can be suitable with the shape of winch assembly 40.When packing up, clump weight 30 covers the outside of winch assembly 40 with its pocket.So both alleviate the load of turntable stacker 10, taken full advantage of again the space of turntable stacker 10 simultaneously.
Simultaneously, as shown in Figure 5, in the specific embodiment of a kind of movable manned elevator provided by the present invention, this movable manned elevator comprises chassis 70 and the lifting work mechanism for elevator provided by the present invention, wherein chassis 70 comprises operator's compartment 71, vehicle frame 72 and explosive motor, and the lifting work mechanism intermediate station stacker 10 that is used for elevator is arranged on the vehicle frame on chassis 70.During vehicle operating, arm head spare 23 is excellent in being placed on chassis operator's compartment 71 top board upsides.So not only can save the space, the safety in the time of simultaneously can also the lifting vehicle operation can not constitute a threat to near object vehicle.Certainly, also can be provided with a lanyard spare at close operator's compartment 71 near by the sidewall of vehicle frame 72 1 sides, the suspention steel cable that connects on jib head 23 is hooked on lanyard spare, make it form rock-steady structure.
As preferred embodiment a kind of, in this movable manned elevator, the oil pump of the hydraulic efficiency pressure system of manned lift operating mechanism optionally switches to the explosive motor on driver train 80 or chassis.Driver train 80 can join for elevator provides power by cord and extraneous power supply, and when without external source, elevator work can provide power by on-vehicle internal combustion engine, and two hydraulic efficiency pressure systems can be changed mutually.
As a kind of mode of convenient operation, in this movable manned elevator, clump weight 30 can be provided with suspension connection device away from a side of winch assembly 40, connect cage 50 in order to hang.The side that general cage 50 contacts with ground, be equipped with roller, to facilitate the movement of cage 50, even the other blocking device that is provided with of each roller, the fixing of cage 50 can only keep being relatively fixed, when having external force to apply, cage 50 is moved, when vehicle movement, relative displacement just often easily appears in cage mounted thereto, causes potential safety hazard.The suspension connection device that is provided with on clump weight 30 in the present invention, its can and cage between form stable annexation.Can also save the space when guaranteeing cage stability.In a kind of concrete operation of the present invention, this suspension connection device is stirrup spare 33, and this stirrup spare 33 can form with the strut member 51 that cage 50 is provided with and be connected, and is that cage 50 is close on clump weight 30.
The present invention is used for man-engine's lifting work mechanism, by adopting leveling cyclinder and boom assembly and arm head spare to form stable triangular structure, eliminated in the prior art poor synchronization with the arm of two hoister control, and the deficiency of cage poor security and stability, simultaneously, a kind of suspention steel cable folding and unfolding mode of more advantage is provided, and when avoiding arm steel cable debit, the phenomenon of disorder cable, intersection, improved the cage Operation safety.The present invention has carried out comprehensive transformation to the overall structure of man-engine's lifting work mechanism.Make its operation more stable, applicable.Simultaneously, be furnished with two kinds of engine installations of combustion engine and motor pump in movable manned elevator provided by the present invention, can adapt under the different operating environment and work.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.