CN211945982U

CN211945982U - Automatic truss unstacker

Info

Publication number: CN211945982U
Application number: CN202020448920.0U
Authority: CN
Inventors: 王兴华; 刘亮; 王海峰; 刘建明
Original assignee: Langfang Hess Machinery Co ltd
Current assignee: Langfang Hess Machinery Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-17
Anticipated expiration: 2030-03-31

Abstract

The utility model provides an automatic unstacker of truss belongs to railway sleeper technical field, include: portal frame, running gear, elevating system, rotation mechanism, mechanism of breaking a jam and unable adjustment base. The technical effects are as follows: the utility model provides an among the automatic unstacker of truss, the portal frame provides the supporting role for overall structure, unstacking mechanism can snatch the truss from unable adjustment base's tray through two clamping parts, and the linkage can adjust the uniformity of two clamping part synchronization actions in order to guarantee the centre gripping, stability and accuracy, utilize running gear to realize elevating system, slewing mechanism and the translation of unstacking mechanism, utilize elevating system can realize slewing mechanism and the lift of unstacking mechanism, utilize slewing mechanism can realize the rotation of unstacking mechanism, the automation of truss unstacking operation and transfer operation has been realized, the operation accuracy is higher, the operating efficiency is higher, the labor intensity of workers is reduced, the cost of labor is reduced.

Description

Automatic truss unstacker

Technical Field

The utility model belongs to the technical field of the railway sleeper, more specifically say, relate to an automatic unstacker of truss.

Background

The sleeper is an essential basic structure in railway transportation construction. In the production process of the sleeper, the V-shaped truss is usually required to be used as an internal structure of the sleeper, and the V-shaped truss plays a role in increasing the strength of the sleeper.

In a conventional production process, a plurality of trusses are typically stacked on a pallet and transported to a conveyor by a forklift, and the individual trusses are manually removed from the pallet in sequence and placed on the conveyor and transported by the conveyor to the next process.

However, the manual unstacking method is time-consuming, labor-consuming and inefficient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic unstacker of truss aims at solving the mode of traditional artifical manual unstacking and wastes time and energy, the technical problem of inefficiency.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an automatic truss unstacker comprising: a gantry; the traveling mechanism is arranged on the portal frame and used for translating relative to the portal frame; the lifting mechanism is arranged on the travelling mechanism and used for lifting relative to the travelling mechanism; the swing mechanism is connected with the lifting mechanism and used for rotating relative to the lifting mechanism; the unstacking mechanism is connected with the rotary mechanism and comprises two cylinder groups with opposite telescopic directions, two clamping parts which are respectively driven by the two cylinder groups correspondingly, and a connecting rod group for adjusting the two clamping parts to synchronously act; and the fixed base is arranged below the unstacking mechanism and is used for bearing the tray with the truss.

As another embodiment of the present invention, the unstacking mechanism further comprises a unstacking rack for setting the cylinder group and the connecting rod group, and the cylinder group and the clamping portion are both provided with a connecting piece for moving the unstacking rack.

As another embodiment of the utility model, the linkage includes respectively with two connecting piece fixed connection's two first connecting rods, and both ends respectively with two first connecting rod rotates the second connecting rod of connecting, the center of second connecting rod rotate connect in the hacking frame.

As another embodiment of the present invention, the clamping portion includes a clamping plate, a guide post penetrating through the connecting member along a telescopic direction is connected to the movable plate of the guide post, and a stopper extending from one end of the connecting member is sleeved on the guide post and abutting against the elastic body of the connecting member and the movable plate, and a first sensor disposed on the connecting member for sensing the guide post.

As another embodiment of the utility model, the connecting piece is equipped with the height detection frame of wearing to locate its vertical direction to and be used for responding to the second inductor of height detection frame.

As another embodiment of the present invention, the lifting mechanism includes a lifting frame having a top plate and a bottom plate, and a gear motor unit disposed on the traveling mechanism, the top plate and the bottom plate are connected with a chain therebetween, and the gear motor unit includes a main sprocket for engaging with the chain.

As another embodiment of the present invention, the gear motor unit further includes a support frame provided with a chain passing through the traveling mechanism, and a driven sprocket engaged with the chain is provided in the support frame in the vertical direction.

As another embodiment of the present invention, the top end of the gear motor set is provided with a first locating part, the bottom end of the traveling mechanism is provided with a second locating part, and the first locating part and the second locating part are used for limiting the lifting height of the lifting frame.

As another embodiment of the utility model, the crane is including locating the tensioning pull rod of roof, and with the tensioning piece that the tensioning pull rod is connected, the tensioning piece with the top of chain is connected.

As another embodiment of the present invention, the traveling mechanism includes an adjusting wheel which is movably engaged with the lifting frame along a vertical direction.

The utility model provides an automatic unstacker of truss has following technological effect at least: compared with the prior art, the utility model provides an among the automatic unstacker of truss, the portal frame provides the supporting role for overall structure, unstacking mechanism can snatch the truss from unable adjustment base's tray through two clamping parts, and the linkage can adjust the uniformity of two clamping part synchronization actions in order to guarantee the centre gripping, stability and accuracy, utilize running gear to realize elevating system, rotation mechanism and unstacking mechanism's translation, utilize elevating system can realize rotation mechanism and the lift of unstacking mechanism, utilize rotation mechanism can realize the rotation of unstacking mechanism, the automation of truss unstacking operation and transfer operation has been realized, the operation accuracy is higher, operating efficiency is higher, workman intensity of labour has been reduced, the cost of labor has been reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an automatic truss unstacker according to an embodiment of the present invention;

FIG. 2 is another angular schematic view of the automated truss unstacker of FIG. 1;

fig. 3 is a schematic structural view of a portal frame in an embodiment of the present invention;

fig. 4 is a schematic structural view of a traveling mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic view of another angle structure of the traveling mechanism shown in FIG. 4;

fig. 6 is a schematic structural diagram of the lifting mechanism and the swing mechanism of the second reduction motor set according to an embodiment of the present invention;

FIG. 7 is another angular partial view of the structure shown in FIG. 6;

fig. 8 is a schematic structural view of a second reduction motor unit according to an embodiment of the present invention;

FIG. 9 is a schematic view of an alternate angular configuration of the configuration of FIG. 8;

FIG. 10 is a schematic cross-sectional view of the structure shown in FIG. 8;

fig. 11 is a schematic structural view of a destacking mechanism according to an embodiment of the present invention;

FIG. 12 is a schematic view of another angular configuration of the unstacking assembly shown in FIG. 11;

fig. 13 is a schematic structural view of a fixing base and a tray according to an embodiment of the present invention.

In the figure:

10. truss automatic unstacker 100, portal frame 110 and track

120. Cross beam 130, X-frame 200 and travelling mechanism

210. Traveling frame 220, traveling wheel 230 and first speed reduction motor set

240. Limiting frame 242, accommodating space 250 and auxiliary wheel

260. Adjusting wheel 270, second locating part 300, elevating system

310. Lifting frame 312, top plate 314 and bottom plate

316. Tensioning pull rod 318, tensioning block 320 and second speed reduction motor set

322. Support frame 324, motor body 326 and transmission shaft

328. The carrier frame 330, the chain 340, the first position limiting member

350. Main chain wheel 360, auxiliary chain wheel 400 and rotary mechanism

410. Third gear motor group 412, fixed plate 414, motor element

420. Slewing bearing 430, gear 500, mechanism of breaking a jam

510. Middle disc 520, unstacking rack 522 and sliding rail

530. Cylinder block 540, clamp 542, and clamp plate

544. Guide post 545, movable plate 546 and elastic body

547. Stopper 548, first sensor 550, connector

560. Link group 562, first link 564, second link

570. Fixed rod 572, linkage point 580 and height detection rack

582. Second inductor 592, first station 594, and second station

600. Fixed base 610, direction locating part 620, tray

622. Upright column 20 and truss

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Please refer to fig. 1 to 13 together, the embodiment of the present invention provides an automatic unstacker 10 for trusses, which has a simple structure, integrates the functions of rotation, translation, lifting and the like into a whole, can realize the automatic unstacking operation and transferring operation of trusses 20, and is now right according to the present invention, the embodiment of the present invention provides an automatic unstacker 10 for trusses.

The embodiment of the utility model provides an automatic unstacker of truss 10, include: a gantry 100; the traveling mechanism 200 is arranged on the portal frame 100 and is used for translating relative to the portal frame 100; a lifting mechanism 300 provided to the traveling mechanism 200, for lifting relative to the traveling mechanism 200; a swing mechanism 400 connected to the elevating mechanism 300 for rotating with respect to the elevating mechanism 300; the unstacking mechanism 500 is connected to the rotating mechanism 400 and comprises two cylinder groups 530 with opposite expansion and contraction directions, two clamping parts 540 which are respectively driven by the two cylinder groups 530 correspondingly, and a connecting rod group 560 for adjusting the synchronous action of the two clamping parts 540; and a fixing base 600 provided below the unstacking mechanism 500 to bear the tray 620 on which the girder 20 is stacked.

It is understood that, in the embodiment of the present invention, the automatic truss unstacker 10 further includes a control system for controlling the start and stop of the traveling mechanism 200, the lifting mechanism 300, the swing mechanism 400 and the unstacking mechanism 500. In addition, the automatic truss unstacker 10 further comprises various sensors for detecting the start, stop and in-place of the travelling mechanism 200, the lifting mechanism 300, the rotating mechanism 400 and the unstacking mechanism 500, and the sensors interact with the control system, so that the control system controls the travelling mechanism 200, the lifting mechanism 300, the rotating mechanism 400 and the unstacking mechanism 500.

Referring to fig. 1 and 3, the gantry 100 may be made of standard H-shaped steel, and is fixedly connected by expansion bolts to form a supporting structure of the whole apparatus, and the X-frame 130 is disposed around the gantry 100 to reinforce the overall structural strength. The gantry 100 is provided with a detachable rail 110, and when the rail 110 is provided with a plurality of rails, the plurality of rails 110 are arranged in parallel. For example, as shown in fig. 1 and 3, the gantry 100 is provided with two rails 110 arranged in parallel. The rail 110 is detachably installed on the gantry 100, and the damaged rail 110 can be replaced in time or the type of the rail 110 can be adjusted according to the traveling wheels.

Referring to fig. 4 and 5, the traveling mechanism 200 includes a traveling frame 210 located above the gantry 100, a traveling wheel 220 disposed on the traveling frame 210 and movably engaged with the rail 110, a first deceleration motor set 230 disposed on the traveling frame 210 and used for driving the traveling wheel 220, and a limiting frame 240 disposed on the traveling frame 210 and having a vertical accommodating space 242.

Specifically, the walking frame 210 and the limiting frame 240 in the walking mechanism 200 may be formed by welding a rectangular tube and a special-shaped plate. The traveling mechanism 200 includes a plurality of traveling wheels 220 movably engaged with the rails 110, for example, as shown in fig. 4, two traveling wheels 220 are engaged with each rail 110 at intervals, and the traveling wheels 220 of the two opposite rails 110 are correspondingly disposed. Two road wheels 220 on one of the different pairs of rails 110 are coaxially driven by a first reduction motor set 230. When each pair of road wheels 220 is provided with the first speed reduction motor set 230, the problem that the plurality of first speed reduction motor sets 230 start and stop synchronously needs to be considered. The limiting frame 240 is disposed on the walking frame 210 and has a vertical accommodating space 242.

Referring to fig. 3, the gantry 100 is provided with a beam 120 for installing the rail 110, and the traveling frame 210 is provided with auxiliary wheels 250 movably engaged with the side portions of the beam 120. Auxiliary wheel 250 can be equipped with a plurality ofly, and auxiliary wheel 250 hugs closely the crossbeam 120 lateral part, and auxiliary wheel 250's moving direction is the same with the moving direction of walking wheel 220, but the angle mutually perpendicular of placing of wheel body can assist running gear 200's translation for the translation process is more steady and smooth and easy, reduces and shakes mobility.

Referring to fig. 1 and 2, the lifting mechanism 300 is disposed on the traveling mechanism 200 and can move in the accommodating space 242 along a vertical direction to drive the rotating mechanism 400 and the unstacking mechanism 500 to lift together. Meanwhile, when the traveling mechanism 200 moves, the lifting mechanism 300 and the traveling mechanism 200 move together, and thus the swing mechanism 400 and the unstacking mechanism 500 can be driven to move together.

Referring to fig. 6 and 7, the swing mechanism 400 is connected to the bottom of the lifting mechanism 300 and can be lifted together with the lifting mechanism 300. The swing mechanism 400 can rotate relative to the lifting mechanism 300, so as to drive the unstacking mechanism 500 to rotate, thereby realizing the rotation of the truss 20.

Referring to fig. 11 and 12, the unstacking mechanism 500 includes two cylinder groups 530 extending in opposite directions, and it is understood that the cylinder groups 530 may include one cylinder or a plurality of cylinders. The two cylinder sets 530 may drive the two clamping portions 540 to perform clamping or unclamping operations in opposite directions, respectively, thereby achieving the grasping or placing of the truss 20.

In order to avoid the phenomenon that the clamping parts 540 corresponding to the two cylinder groups 530 independently control each other can not be operated simultaneously, the embodiment of the present invention provides a linkage 560 for adjusting the two synchronous actions between the two clamping parts 540, so as to ensure the action consistency of the two clamping parts 540, improve the stability and accuracy of clamping, and avoid the undesirable phenomenon that the truss 20 falls off due to the inconsistent clamping action. The link group 560 has the rotation center of the unstacking mechanism 500 as the linkage point 572. A fixing rod 570 is provided on the unstacking mechanism 500, and the fixing rod 570 passes through the linkage point 572, so that the fixing rod 570 is fixed to the unstacking mechanism 500 and forms the linkage point 572. The linkage 560 is connected to the two clamping portions 540 at the same time, and the linkage 560 can synchronously adjust the state of the other side by adjusting the state of the linkage 560 on either side of the linkage 572, so that the two clamping portions 540 synchronously operate, and the consistency of clamping or loosening is ensured.

Referring to fig. 3, the unstacking mechanism 500 has a first station 592 and a second station 594 which are horizontally oriented, and the unstacking mechanism 500 is driven by the traveling mechanism 200 to reciprocate between the first station 592 and the second station 594. Referring to fig. 1, 2 and 13, the fixing base 600 is disposed below the unstacking mechanism 500 at the first station 592, that is, the first station 592 is an initial station, and is used for carrying the tray 620 on which the truss 20 is stacked. Referring to fig. 13, the fixing base 600 is provided with a guiding position-limiting member 610, when the forklift places the tray 620 with the truss 20 on the fixing base 600, if the forklift touches the guiding position-limiting member 610, it is described that the forklift is already transported in place, and the forklift is placed accurately.

Generally, the truss 20 is composed of a plurality of V-shaped frames and bars, and since there is an inclination angle on the side of the V-shaped frame, there is a certain difficulty in clamping, and in order to facilitate the grabbing of the truss 20, clamping along the length direction of the bars is generally selected to improve the reliability of clamping the truss 20. In addition, in order to avoid the situation that the plurality of trusses 20 are stacked at the same angle and it is difficult to distinguish the single trusses 20, the plurality of trusses 20 are stacked in the order of 0 degree and 90 degree, that is, the extending directions of the adjacent two trusses 20 are in a vertical state, so as to facilitate the gripping of the single trusses 20. Four top corners of the tray 620 are provided with a column 622 to limit the position of the truss 20 when the truss 20 is placed at 90 degrees in a crossing manner, so as to ensure the stability of the truss 20 on the tray 620.

In the unstacking process, the gripping parts 540 sequentially perform the grabbing operation of the single truss 20 from the tray 620, and it is confirmed whether the unstacking mechanism 500 is to be rotated by 90 degrees according to the arrangement direction of the truss 20. After the gripping part 540 grips the truss 20, the lifting mechanism 300 is lifted, and the traveling mechanism 200 drives the lifting mechanism 300, the rotating mechanism 400, and the unstacking mechanism 500 to move horizontally. After the clamping part 540 reaches the conveyor, the truss 20 is placed on the conveyor in a loose manner, and whether the unstacking mechanism 500 is rotated or not can be confirmed according to the conveying width of the conveyor. Finally, the automatic truss unstacker 10 is reset and the above operations are repeated. Typically, the conveying is performed using a chain conveyor.

In addition, a sensor for detecting whether the traveling mechanism 200 moves to the first station 592 or the second station 594 is further disposed on the gantry 100, and the sensor is used for controlling starting and stopping of the traveling mechanism 200. Cables, etc. present in the entire apparatus may be provided to the gantry 100 in the form of a drag chain.

The embodiment of the utility model provides an automatic unstacker 10 of truss has following technological effect at least: compared with the prior art, the embodiment of the utility model provides an among the automatic unstacker 10 of truss, portal frame 100 provides the supporting role for overall structure, unstacking mechanism 500 can snatch truss 20 from unable adjustment base 600's tray 620 through two clamping parts 540, and linkage 560 can adjust the uniformity of two clamping parts 540 synchronous motion in order to guarantee the centre gripping, stability and accuracy, utilize running gear 200 can realize elevating system 300, swing mechanism 400 and the translation of unstacking mechanism 500, utilize elevating system 300 can realize swing mechanism 400 and the lift of unstacking mechanism 500, utilize swing mechanism 400 can realize the rotation of unstacking mechanism 500, truss 20 unstacking operation and the automation of transporting the operation have been realized, the operation accuracy is higher, operating efficiency is higher, workman intensity of labour has been reduced, the cost of labor has been reduced.

Referring to fig. 11 and 12, as an embodiment of the present invention, the unstacking mechanism 500 further includes a unstacking rack 520 for arranging cylinder sets 530 and link sets 560, and a connecting member 550 movably engaged with the unstacking rack 520 is disposed between each of the two cylinder sets 530 and the clamping portion 540. Specifically, the unstacking mechanism 500 further comprises an intermediate tray 510 connected to the swing mechanism 400, and the unstacking frame 520 is connected below the intermediate tray 510. The unstacking rack 520 can be formed by welding rectangular pipes, special-shaped plates and portal channel steel.

In this embodiment, the unstacking rack 520 is generally provided with two sliding rails 522, and the sliding rails 522 may be formed by C-shaped steel or may be specially provided. The connection member 550 includes a moving structure such as a roller or a bearing or a slider movably engaged with the rail 522, and a moving frame connected to the telescopic rod of the cylinder block 530 and connected to the moving structure, and the moving frame is connected to the clamping portion 540. Compared with the mode that the cylinder group 530 directly drives the clamping part 540 to clamp or loosen, the connecting piece 550 can increase the contact area between the clamping part and the unstacking frame 520 so as to increase the stability in the driving process, increase the stress balance of the clamping part 540 and reduce the swinging performance in the driving process.

Further, the linkage 560 includes two first links 562 fixedly connected to the two connecting members 550, respectively, and a second link 564 rotatably connected at both ends to the two first links 562, respectively, and the center of the second link 564 is rotatably connected to the unstacking rack 520. The two first links 562 are respectively connected to the two moving frames, and the center of the second link 564 is rotatably connected to a fixing rod 570 forming a linkage point 572. Since the two ends of the second link 564 are respectively rotatably connected to the two first links 562, and the center of the second link 564 is the linkage point 572, the distances and angles from the two first links 562 to the linkage point 572 are the same. When one of the two moving frames is driven by the telescopic rod of the cylinder group 530, the other moving frame can be simultaneously driven to move by the first link 562 and the second link 564, thereby driving the other clamping part 540 to move. The arrangement is such that the two clamping parts 540 can achieve high synchronization and consistency, and the consistency of clamping or loosening of the two clamping parts 540 is ensured.

Referring to fig. 11 and 12, as an embodiment of the present invention, the clamping portion 540 includes a clamping plate 542, a guide post 544 passing through the connecting member 550 along the extending direction, a movable plate 545 connected to the guide post 544, an elastic body 546 sleeved on the guide post 544 and abutting against the connecting member 550 and the movable plate 545, a stopper 547 disposed at an end of the guide post 544 extending out of the connecting member 550, and a first sensor 548 disposed on the connecting member 550 for sensing the guide post 544. Generally, two guide columns 544 and two elastic bodies 546 are provided, the elastic bodies 546 are springs, the first sensor 548 can be a proximity switch, a photosensitive switch or the like, and the first sensor 548 is in information interaction with a control system. The above structure is used to detect whether the clamping part 540 clamps the predetermined angle of the truss 20.

As described above, the plurality of trusses 20 are sequentially stacked at 0 degrees and 90 degrees on the tray 620, and the clamping part 540 needs to clamp the lengthwise direction of the trusses 20. When the first truss 20 starts to be clamped, if the guide post 544 does not have a relative displacement, i.e. the truss 20 does not press against the movable plate 545, and the distance that the guide post 544 extends out of the connecting member 550 does not change, it indicates that the clamping direction is wrong, and the first sensor 548 cannot sense the guide post 544, the control system controls the rotating mechanism 400 to rotate 90 degrees for clamping direction adjustment, and in the subsequent clamping process, because the plurality of trusses 20 are overlapped, the rotating mechanism rotates 90 degrees for clamping after each resetting. Alternatively, when the first truss 20 starts to be clamped, if the guide post 544 is displaced relatively, that is, the truss 20 presses against the movable plate 545, and the distance that the guide post 544 extends out of the connecting member 550 increases, indicating that the clamping direction is correct, the first sensor 548 senses the guide post 544, and the control system directly controls the cylinder set 530 to drive the clamping portion 540 to clamp, and in the subsequent clamping process, since the plurality of trusses 20 are overlapped, the clamping is performed by rotating 90 degrees after each reset. Of course, in other embodiments, manual monitoring can be used to operate the control system without the first sensor 548.

Referring to fig. 11, as a specific implementation manner of the embodiment of the present invention, the connecting member 550 is provided with a height detecting frame 580 penetrating in the vertical direction thereof, and a second sensor 582 for sensing the height detecting frame 580. The height detecting frame 580 specifically includes a horizontal plate having a certain length, and two vertical rods respectively connecting both ends of the two horizontal plates. The two vertical rods are vertically movably inserted into the connecting member 550, and form a small diameter section and a large diameter section, and the large diameter section is located above the connecting member 550 to limit the height of the height detecting frame 580. The second sensor 582 may be a proximity switch or a light sensitive switch, and the second sensor 582 is in signal connection with a control system to detect whether the complete single truss 20 can be clamped. For example, the second sensor 582 employs a proximity switch, when the lifting mechanism 300 drives the unstacking mechanism 500 to descend, the height detecting rack 580 descends together, when the horizontal plate of the height detecting rack 580 abuts against the truss 20, the vertical rod of the height detecting rack 580 ascends during the continuous descending process, and when the proximity switch senses the vertical rod, the descending is stopped, and the clamping portion 540 is driven to clamp. The distance by which the vertical bars rise is set equal to the height of the truss 20. Of course, in other embodiments, manual monitoring may be used to operate the control system without the second sensor 582.

Referring to fig. 6 to 10, as an embodiment of the present invention, the lifting mechanism 300 includes a lifting frame 310 having a top plate 312 and a bottom plate 314, and a second deceleration motor set 320 disposed on the traveling mechanism 200, wherein a chain 330 is connected between the top plate 312 and the bottom plate 314, and the second deceleration motor set 320 includes a main sprocket 350 engaged with the chain 330. The second deceleration motor 320 drives the chain 330 to ascend and descend through the main chain wheel 350, so that the chain 330 drives the lifting frame 310 and the unstacking mechanism 500 to ascend and descend.

Specifically, the crane 310 is formed by tailor welding a rectangular tube and a special-shaped plate. The lifting frame 310 is inserted into the accommodating space 242 of the limiting frame 240, and a chain 330 is arranged between the top plate 312 and the bottom plate 314. The second deceleration motor set 320 is fixed on the limiting frame 240, the second deceleration motor set 320 drives the chain 330 to go up and down through the main chain wheel 350, the lifting frame 310 can be driven to go up and down through the lifting of the chain 330, and then the lifting frame 310 drives the unstacking mechanism 500 to go up and down. The crane 310 indirectly bears the weight of the traveling frame 210 by means of the meshing relationship of the chain 330 and the main sprocket 350.

The second deceleration motor set 320 includes a support frame 322 disposed on the limiting frame 240, a motor body 324 disposed on the support frame 322, and a transmission shaft 326 driven by the motor body 324, wherein the transmission shaft 326 is sleeved with a main chain wheel 350. The supporting frame 322 may be made of a special-shaped plate by tailor welding. The supporting frame 322 is fixed to the limiting frame 240 for supporting the weight of the second deceleration motor set 320 and the lifting frame 310. The motor body 324 can drive the transmission shaft 326 to rotate by a motor shaft in a transmission manner through the bevel gear 430, so as to drive the main sprocket 350 sleeved on the transmission shaft 326 to rotate.

Further, the second deceleration motor group 320 further includes a carrying frame 328 provided on the traveling mechanism 200 for the chain 330 to pass through, and a driven sprocket 360 engaged with the chain 330 is provided in the carrying frame 328 in the vertical direction. Specifically, the carrying frame 328 is disposed on the supporting frame 322 for the chain 330 to pass through and for the transmission shaft 326 to be erected. It is understood that the secondary sprocket 360 is mounted within the carriage 328 by a shaft, but is not driven by the motor body 324. The bearing frame 328 can limit circumferential play of the chain 330, and also serve as a bearing structure for mounting the transmission shaft 326 and the driven sprocket 360. The slave chain wheel 360 and the master chain wheel 350 are mutually independent, when the master chain wheel 350 is meshed with the chain 330, the chain 330 is meshed with the slave chain wheel 360 to drive the rotation of the slave chain wheel 360, so that the meshing area of the chain 330 is increased, the moving stability of the chain 330 is further increased, and the stability of the lifting frame 310 is increased. The number and position of the slave sprockets 360 are not limited, and for example, as shown in fig. 9, one slave sprocket 360 is provided on each of the upper and lower sides of the master sprocket 350.

Referring to fig. 5, 8 and 9, as a specific implementation manner of the embodiment of the present invention, a first limiting member 340 is disposed at the top end of the second deceleration motor set 320, a second limiting member 270 is disposed at the bottom end of the traveling mechanism 200, and the first limiting member 340 and the second limiting member 270 are used for limiting the lifting height of the lifting frame 310. The first position-limiting member 340 may be specifically disposed at the top end of the carrying frame 328, and the first position-limiting member 340 may be a structure having a baffle or a stopper, so as to prevent the lifting frame 310 from descending when the lifting frame 310 descends to the position of the first position-limiting member 340. Similarly, the second position-limiting member 270 may be specifically disposed at the bottom end of the position-limiting frame 240, and the second position-limiting member 270 is used for preventing the lifting frame 310 from lifting when the lifting frame 310 is lifted to the position of the second position-limiting member 270. By such an arrangement, the lifting frame 310 can be prevented from being uncontrollably dropped or lifted due to sudden breakage or misoperation of the chain 330.

Referring to fig. 6, as a specific implementation manner of the embodiment of the present invention, the lifting frame 310 includes a tension rod 316 disposed on the top plate 312, and a tension block 318 connected to the tension rod 316, wherein the tension block 318 is connected to the top end of the chain 330. The tension pull rod 316 is arranged on the top plate 312 and extends downwards for a certain distance, the tension block 318 is connected to the tension pull rod 316, the tension block 318 is provided with a clamping block matched with a chain sheet forming the chain 330, compared with the mode of directly connecting the chain 330 to the top plate 312, the chain 330 is in a natural sagging state, the tension state of the chain 330 is ensured to be kept on the whole in the moving process, the meshing relation of the chain 330 and the main chain wheel 350 cannot be influenced by redundant sections generated in the lifting process, and the chain 330 and the main chain wheel 350 are ensured to be in a good meshing state all the time.

Referring to fig. 4 and 5, as a specific implementation manner of the embodiment of the present invention, the traveling mechanism 200 includes an adjusting wheel 260 movably engaged with the lifting frame 310 in a vertical direction. The adjusting wheel 260 is specifically disposed on the limiting frame 240 and partially disposed in the accommodating space 242 to contact with the lifting frame 310. The adjusting wheel 260 can make the lifting frame 310 more stable in the lifting process in the vertical direction, and the lifting frame 310 is adjusted to keep a vertical state. The adjusting wheel 260 may be disposed in a plurality of numbers and distributed around the limiting frame 240. Meanwhile, in order to ensure a better adjustment effect, at least two rows of upper and lower adjustment wheels 260 may be disposed at intervals, for example, as shown in fig. 5, six adjustment wheels 260 may be disposed in each row and surround the limiting frame 240.

Referring to fig. 6 and 7, as a specific implementation manner of the embodiment of the present invention, the revolving mechanism 400 includes a third speed reduction motor unit 410 connected to the bottom of the lifting mechanism 300, and a revolving support 420 driven by the third speed reduction motor unit 410 and connected to the unstacking mechanism 500. Specifically, the third reduction motor group 410 drives the rotary support 420 to rotate through the gear 430, and the rotary support 420 is connected with the intermediate disk 510, so that the rotary support 420 drives the unstacking mechanism 500 to rotate.

The third deceleration motor group 410 is specifically disposed at the bottom end of the lifting frame 310, and includes a fixing plate 412 connected to the bottom end of the lifting frame 310 and a motor assembly 414 disposed on the fixing plate 412. The rotary bearing 420 can also be connected to the bottom end of the lifting frame 310 through the fixing plate 412, the motor assembly 414 drives the gear 430 through the driving gear 430, so that the gear 430 is meshed with the rotary bearing 420, the rotary bearing 420 is driven to rotate, and the rotary bearing drives the unstacking mechanism 500 to rotate.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Automatic unstacker of truss, its characterized in that includes:

a gantry;

the traveling mechanism is arranged on the portal frame and used for translating relative to the portal frame;

the lifting mechanism is arranged on the travelling mechanism and used for lifting relative to the travelling mechanism;

the swing mechanism is connected with the lifting mechanism and used for rotating relative to the lifting mechanism;

the unstacking mechanism is connected with the rotary mechanism and comprises two cylinder groups with opposite telescopic directions, two clamping parts which are respectively driven by the two cylinder groups correspondingly, and a connecting rod group for adjusting the two clamping parts to synchronously act; and

and the fixed base is arranged below the unstacking mechanism and is used for bearing the tray with the truss.

2. The automatic truss unstacker of claim 1, wherein the unstacking mechanism further comprises an unstacking frame for arranging the cylinder groups and the connecting rod groups, and connecting pieces movably matched with the unstacking frame are arranged between the two groups of the cylinder groups and the clamping parts.

3. The automatic truss unstacker of claim 2 wherein the linkage comprises two first links fixedly connected to the two connecting members, respectively, and a second link rotatably connected at both ends to the two first links, respectively, the second link having a center rotatably connected to the unstacker.

4. The automatic truss unstacker of claim 2, wherein the clamping portion comprises a clamping plate, a guide post passing through the connecting member in a telescopic direction, a movable plate connected to the guide post, an elastic member sleeved on the guide post and abutting against the connecting member and the movable plate, a stopper disposed at an end of the guide post extending out of the connecting member, and a first sensor disposed on the connecting member for sensing the guide post.

5. The truss automatic unstacker of claim 2, wherein the connecting member is provided with a height detection frame penetrating in a vertical direction thereof, and a second sensor for sensing the height detection frame.

6. The truss automatic unstacker of claim 1, wherein the lifting mechanism comprises a crane having a top plate and a bottom plate, and a gear motor unit provided to the traveling mechanism, a chain being connected between the top plate and the bottom plate, the gear motor unit comprising a main sprocket for engaging with the chain.

7. The automatic truss unstacker as claimed in claim 6, wherein the gear motor unit further includes a bearing frame provided on the traveling mechanism for the chain to pass through, and a driven sprocket engaged with the chain is provided in the bearing frame in a vertical direction.

8. The automatic truss unstacker according to claim 6, wherein a first stopper is disposed at the top end of the gear motor unit, a second stopper is disposed at the bottom end of the traveling mechanism, and the first stopper and the second stopper are used for limiting the lifting height of the crane.

9. The automatic truss unstacker of claim 6 wherein the crane includes a tension bar attached to the top plate and a tension block attached to the tension bar, the tension block attached to the top end of the chain.

10. The automatic truss unstacker of claim 6 wherein the traveling mechanism includes an adjustment wheel that is vertically movably engaged with the crane.