CN211366853U

CN211366853U - Stacking machine

Info

Publication number: CN211366853U
Application number: CN201922100280.4U
Authority: CN
Inventors: 卢艳; 舒阿敏
Original assignee: Guangdong Ruishige Technology Co ltd
Current assignee: Guangdong Ruishige Technology Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-08-28
Anticipated expiration: 2029-11-27

Abstract

The utility model provides a stacker, which comprises a stand column, a cargo carrying platform, a locking assembly and a lifting driving assembly; the locking assembly is arranged on the eccentric shaft and the lifting seat and used for limiting the eccentric shaft to rotate in the mounting hole; the locking assembly comprises a gear fixed at one end of the eccentric shaft and a locking block fixed on the cargo carrying platform, and a tooth-shaped matching part meshed with the gear to prevent the eccentric shaft from rotating is arranged on the locking block. Through at the downthehole eccentric shaft of installation of mounting, the leading wheel rotationally locates on the eccentric shaft, and set up on eccentric shaft and lift seat and can prevent eccentric shaft pivoted locking Assembly, thereby can adjust the clearance between leading wheel and the lift guide rail to reasonable scope through rotatory eccentric shaft, then the eccentric shaft is locked to rethread locking Assembly, make the eccentric shaft can not rotate, and then can prevent the clearance between leading wheel and the lift guide rail to change under the condition of neglecting processing and assembly error, guarantee the platform of carrying goods get, put goods positioning accuracy.

Description

Stacking machine

Technical Field

The utility model relates to a storage equipment technical field, in particular to stacker.

Background

The stacker, also called stacking crane, is a special crane which uses a fork or a string rod as a goods taking device to grab, carry and stack goods in warehouses, workshops and the like or pick and place unit goods from a high-rise goods shelf. The stacker is mainly used for running back and forth in a channel of a stereoscopic warehouse, storing goods positioned at a lane port into a goods grid of a goods shelf, or taking out goods in the goods grid and conveying the goods to the lane port.

In the related scheme, the stacker mainly comprises an upright post, a cargo carrying platform, a lifting driving assembly, a control system and the like. Wherein, the cargo carrying platform is a structural unit which is responsible for storing and taking cargos and is provided with a cargo taking fork. The goods carrying platform is attached to the upright post of the stacker and is in contact with the guide rail of the upright post through the guide wheel of the goods carrying platform to guide the goods carrying platform to move up and down in the vertical direction. Under the control of the control system, the lifting driving assembly drives the cargo carrying platform to move up and down.

The dead axle that sets up the leading wheel is screwed and is fixed in the dead axle mounting hole of carrying cargo bed through the nut, and the one end of dead axle is equipped with the external screw thread, and then fixes the dead axle in the dead axle mounting hole of carrying cargo bed through the nut with external screw thread matched with. Because the diameter of dead axle mounting hole is slightly greater than the diameter of dead axle generally, if the nut takes place to become flexible, then when the leading wheel received the radial extrusion force of guide rail, the dead axle can take place radial movement in dead axle mounting hole, and then makes the clearance between leading wheel and the guide rail increase, causes the cargo bed to get, put the positioning accuracy of goods and reduces. In order to solve the problem, the prior art generally designs some very complicated structures to correct the position of the cargo carrying platform, however, the more complicated the structure, the lower the reliability, the inconvenient the operation, the poor user experience and the high cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a stacker, including the stand, carry cargo bed, guide assembly and lift drive assembly.

The upright post is provided with a lifting guide rail;

the cargo carrying platform comprises a cargo platform main body and a lifting seat, and the cargo platform main body is fixed on the lifting seat;

the guide assembly comprises an eccentric shaft, a guide wheel, a mounting seat and a locking assembly, the mounting seat is provided with a mounting hole and is fixed on the lifting seat, the eccentric shaft is mounted in the mounting hole, and the guide wheel is rotatably arranged on the eccentric shaft; the guide wheel rolls along the lifting guide rail to realize lifting guide of the cargo carrying platform, and when the eccentric shaft rotates in the mounting hole, the size of a gap between the guide wheel and the lifting guide rail is changed; the locking assembly comprises a gear fixed at one end of the eccentric shaft and a locking block fixed on the mounting seat, and a tooth-shaped matching part meshed with the gear to prevent the eccentric shaft from rotating is arranged on the locking block;

and the lifting driving assembly is arranged on the upright post and used for driving the cargo carrying table to move up and down along the lifting guide rail.

Further, the locking block is detachably fixed to the mounting seat.

Furthermore, the locking block is provided with a first through hole, the mounting base is provided with threaded holes corresponding to the first through hole respectively, and the locking block is fixed on the mounting base through a screw and the first through hole.

Further, the locking block is roughly rectangular, one side of the locking block close to the gear is cut into the tooth-shaped matching part, and the tooth-shaped matching part comprises at least one tooth capable of being meshed with the gear.

Furthermore, the locking assembly further comprises a gasket, a second through hole corresponding to the first through hole is formed in the gasket, and the gasket is arranged between the locking block and the mounting seat in a cushioning mode.

Furthermore, one end of the gasket is provided with a gap matched with the peripheral surface of the eccentric shaft, and the gasket is clamped on the eccentric shaft through the gap.

Further, the mounting seat comprises a first lug plate and a second lug plate which are arranged in parallel, the mounting hole penetrates through the first lug plate and the second lug plate, the guide wheel comprises a first guide wheel, the first guide wheel is located between the first lug plate and the second lug plate, one end, away from the gear, of the eccentric shaft is provided with a stop component, and the stop component is used for preventing the eccentric shaft from being separated from the mounting hole.

Further, the stop member comprises a clamping ring and a sleeve, the sleeve is sleeved on the eccentric shaft and is matched with the mounting hole through the outer circumferential surface of the sleeve, one end of the sleeve is provided with a radial flange, and the diameter of the radial flange is larger than that of the mounting hole so as to stop the sleeve from passing through the mounting hole;

the clamping ring is clamped in the clamping groove and protrudes out of the outer side of the circumferential surface of the eccentric shaft so as to stop the sleeve at one end of the eccentric shaft, which is far away from the gear.

Further, the mount pad still includes the mount pad main part, first otic placode with the second otic placode is fixed in the mount pad main part, the mount pad main part still is equipped with second leading wheel and third leading wheel, the second leading wheel with the third leading wheel sets up side by side and the equal perpendicular to of axis the axis of first leading wheel, the lift guide rail includes that at least a cross-section is the single track of rectangle, the second leading wheel with the third leading wheel is used for following respectively two sides of single track remove, first leading wheel is used for following the outer facade of single track removes.

Furthermore, the cross section of the upright post is rectangular, and the left side and the right side of the upright post are respectively provided with the single rail; the lifting seat is groove-shaped, can be lifted, moved and clasped to the upright post, and comprises a left side plate and a right side plate which are fixed with each other; the guide assemblies are four, the guide assemblies are symmetrically arranged at the upper end and the lower end of the left side plate and the upper end and the lower end of the right side plate in pairs, the two guide assemblies at the upper end and the lower end of the left side plate are used for being matched with the left single rail lifting guide of the stand column, and the two guide assemblies at the upper end and the lower end of the right side plate are used for being matched with the single rail lifting guide at the right side of the stand column.

Further, the gear is detachably fixed to one end of the eccentric shaft by means of a profile connection.

Furthermore, one end of the eccentric shaft close to the gear is provided with a blind hole with a polygonal cross section or a polygonal boss protruding out of the end face of the eccentric shaft.

Furthermore, the lifting driving assembly comprises a winch, a traction rope and a fixed pulley, the winch is fixed on one side of the upright post, and the fixed pulley is rotatably arranged at the top of the upright post; the traction rope bypasses the fixed pulley, one end of the traction rope is wound on a winding drum of the winding engine, and the other end of the traction rope is connected with the cargo carrying platform.

Furthermore, the device also comprises a base and a translation driving assembly, wherein the base is provided with a translation guide rail, and the translation driving assembly is used for driving the upright post to move along the translation guide rail.

According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:

the utility model provides a stacker, through installing the eccentric shaft in the mounting hole, the leading wheel rotationally locates on the eccentric shaft, and set up on eccentric shaft and lift seat and can prevent eccentric shaft pivoted locking Assembly, thereby can adjust the clearance between leading wheel and the lift guide rail to reasonable scope through rotatory eccentric shaft, the locking Assembly who comprises gear and locking Assembly can effectively lock the eccentric shaft, make the eccentric shaft can not rotate, effectively avoid the nut locking because of the not hard up fixed axle that causes of nut removes and then the problem of clearance increase between leading wheel and the lift guide rail, the guarantee is loaded the platform and is got, put goods positioning accuracy, moreover, the steam generator is simple in structure, the cost is relatively lower, the locking reliability is high.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a stacker according to an embodiment of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of a cargo bed according to an embodiment of the present invention.

Fig. 3 and 7 are schematic perspective views of a guiding assembly according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of a locking block according to an embodiment of the present invention.

Fig. 5 is a schematic perspective view of a gasket according to an embodiment of the present invention.

Fig. 6 is a schematic perspective view of a gasket according to an embodiment of the present invention.

Fig. 8 is a schematic view of a three-dimensional structure of the eccentric shaft according to an embodiment of the present invention.

Fig. 9 is a schematic perspective view of a sleeve according to an embodiment of the present invention.

Fig. 10 is a schematic view of a top view partial structure of a stacker according to an embodiment of the present invention.

The reference numerals are explained below: 1. a column; 11. a lifting guide rail; 111. a single track; 2. a cargo carrying platform; 21. a cargo bed main body; 22. a lifting seat; 221. a left side plate; 222. a right side plate; 223. an intermediate connection plate; 3. a guide assembly; 31. an eccentric shaft; 311. a card slot; 312. blind holes; 32. a guide wheel; 321. a first guide wheel; 322. a second guide wheel; 323. a third guide wheel; 33. a mounting seat; 331. mounting holes; 332. a mount body; 333. a first ear plate; 334. a second ear panel; 335. a threaded hole; 34. a locking assembly; 341. a gear; 342. a locking block; 3421. a tooth-shaped mating portion; 3422. a first through hole; 343. a gasket; 3431. a second through hole; 3432. a notch; 344. a screw; 35. a stopper member; 351. a clamping ring; 352. a sleeve; 3521. a radial flange; 4. a lift drive assembly; 41. a winch; 42. a hauling rope; 5. a base.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, an embodiment of the present invention provides a stacker, including a column 1, a cargo carrying platform 2, a guiding assembly 3, a lifting driving assembly 4, a base 5, and a translation driving assembly (not shown).

The upright 1 is used as a main framework of the stacker and is provided with a lifting guide rail 11 for providing a guiding function for the lifting movement of the cargo carrying platform 2. The upright post 1 can be a columnar structure with a rectangular cross section, and the upright post 1 is erected on the base 5. Be equipped with the translation guide rail on the base 5, translation drive assembly can drive stand 1 and follow the translation guide rail back-and-forth movement to conveniently adjust the front and back position of stand 1. The translation driving component can be a gear rack mechanism driven by a motor, a screw rod and nut mechanism driven by the motor or a roller mechanism driven by the motor.

Referring to fig. 2, the cargo bed 2 includes a bed main body 21 and a lifting base 22, the bed main body 21 being in a substantially horizontal state, and the lifting base 22 being in a substantially vertical state. The platform body 21 is fixed to the elevating base 22, and the platform body 21 is moved up and down in accordance with the elevating movement of the elevating base 22. The pallet body 21 may be provided with a cargo handling mechanism such as a retractable fork, or may be provided with a guard mechanism such as a guardrail or a baffle for preventing the cargo from falling.

Referring to fig. 3, the guide assembly 3 includes a mounting block 33 and at least one eccentric shaft assembly. The mounting seat 33 is fixed to the lifting seat 22 as a mounting fixing seat body of the guiding assembly 3, so as to cooperate with the lifting guide rail 11 on the upright 1 to provide guidance for the lifting movement of the lifting seat 22. The eccentric shaft assembly comprises an eccentric shaft 31, a guide wheel 32 and a locking assembly 34, a mounting hole 331 for mounting the eccentric shaft 31 is formed in the mounting base 33, the eccentric shaft 31 is rotatably mounted in the mounting hole 331, the guide wheel 32 is rotatably arranged on the eccentric shaft 31, and the guide wheel 32 rolls along the lifting guide rail 11 to realize lifting guide of the cargo carrying platform 2. Since the guide wheel 32 is mounted on the eccentric shaft 31, when the eccentric shaft 31 rotates in the mounting hole 331, the distance between the axis of the guide wheel 32 and the lifting guide rail 11 is changed, and thus the size of the gap between the guide wheel 32 and the lifting guide rail 11 is changed. Thus, the gap between the guide wheel 32 and the guide rail can be adjusted by rotating the eccentric shaft 31, which is convenient for installation and debugging.

The locking assembly 34 includes a gear 341 fixed to one end of the eccentric shaft 31, a locking block 342 fixed to the mounting seat 33, and a spacer 343. The gear 341 may be detachably fixed to one end of the eccentric shaft 31, and the locking block 342 may also be detachably fixed to the mounting seat 33. The locking block 342 is provided with a tooth-shaped matching part 3421, and the tooth-shaped matching part 3421 is meshed with the gear 341 to prevent the gear 341 from rotating, so that the eccentric shaft 31 is prevented from rotating, and the gap between the guide wheel 32 and the guide rail is prevented from changing.

The gear 341 can be detachably fixed to one end of the eccentric shaft 31 by a profile connection, for example, a plane is formed on the side surface of the eccentric shaft 31 near one end of the gear 341, so that the cross section of the eccentric shaft 31 is roughly D-shaped, and the shaft hole of the gear 341 is formed into a D-shaped shaft hole matched with the cross section of the shaft section of the eccentric shaft 31, so that the gear 341 can be detached by being incapable of rotating relative to the eccentric shaft 31 but capable of moving in the axial direction in a manner similar to a key connection.

With continued reference to fig. 1, the lifting driving assembly 4 is disposed on the upright post 1, and is configured to drive the cargo carrying platform 2 to move up and down along the lifting guide rail 11. The lifting driving assembly 4 comprises a winch 41, a traction rope 42 and a fixed pulley (not shown in the figure), wherein the winch 41 is fixed on one side of the upright post 1, and the fixed pulley is rotatably arranged on the top of the upright post 1. The traction rope 42 is wound around the fixed pulley, one end of the traction rope 42 is wound around a winding drum of the winding machine 41, and the other end is connected with the cargo bed 2. Accordingly, the winding drum of the winding machine 41 rotates to wind or unwind the traction rope 42 on or from the winding drum, and further pulls the cargo bed 2 to move up and down along the lifting rail 11. According to actual needs, the winch 41 can be fixedly arranged on the rear side surface of the upright post 1, the cargo platform 2 is arranged on the front side surface of the upright post 1, and the fixed pulleys can be respectively arranged on the top of the upright post 1 close to the front side surface and the rear side surface.

In this embodiment, the eccentric shaft 31 is installed in the installation hole 331, the guide wheel 32 is rotatably installed on the eccentric shaft 31, and the locking assembly 34 capable of preventing the eccentric shaft 31 from rotating is installed on the eccentric shaft 31 and the lifting base 22, so that the gap between the guide wheel 32 and the lifting guide rail 11 can be adjusted to a reasonable range by rotating the eccentric shaft 31. The locking assembly 34 composed of the gear 341 and the locking block 342 can effectively lock the eccentric shaft 31, so that the eccentric shaft 31 cannot rotate, the problem that the nut locks the fixed shaft movement caused by the loosening of the nut and then the gap between the guide wheel 32 and the lifting guide rail 11 is increased is effectively avoided, the goods taking and placing positioning precision of the goods carrying platform 2 is guaranteed, the structure is simple, the cost is relatively low, and the locking reliability is high.

The locking block 342 has a first through hole 3422, the mounting base 33 has a threaded hole 335 corresponding to the first through hole 3422, and the locking block 342 is fixed to the mounting base 33 by a screw 344 and the first through hole 3422. The first through holes 3422 and the threaded holes 335 are correspondingly opened in plural numbers, so that the locking block 342 is fixed by the plural screws 344, and the locking effect of the gear 341 and the eccentric shaft 31 is prevented from being affected by the rotation of the locking block 342 around one screw 344.

Referring to fig. 4, the locking piece 342 is substantially rectangular sheet-shaped or block-shaped, and one side of the locking piece 342 near the gear 341 is subjected to material removal processing to form a tooth-shaped engagement portion 3421. The tooth-shaped engagement portion 3421 includes at least one tooth capable of engaging with the gear 341, and the locking piece 342 may be formed in a rack shape on the side close to the gear 341, and a plurality of teeth may engage with the gear 341, so that the reliability of the engagement locking is improved, and on the other hand, even if the vertical position of the locking piece 342 mounted on the mounting seat 33 is deviated, a sufficient tooth can be ensured to engage with the gear 341, and the reliability of the engagement is ensured.

Referring to fig. 5, a second through hole 3431 corresponding to the first through hole 3422 is formed in the spacer 343, and the spacer 343 is disposed between the locking block 342 and the mounting seat 33, so as to avoid the problem of the mounting and fixing accuracy of the locking block 342 being reduced due to the rough surface of the mounting seat 33. One end of the spacer 343 is provided with a notch 3432 corresponding to the outer peripheral surface of the eccentric shaft 31, and the notch 3432 is an open semicircle. Therefore, in the assembling process, the washer 343 can be conveniently clamped on the eccentric shaft 31 through the semicircular notch 3432 on the washer 343, so as to facilitate the installation and fixation of the washer 343.

With continued reference to fig. 3 and 6, the mount 33 includes a mount body 332, a first ear plate 333 and a second ear plate 334, the first ear plate 333 and the second ear plate 334 being secured to the mount body 332 in parallel and spaced apart relation. In this embodiment, the guide assembly 3 includes three eccentric shaft assemblies, which are a first eccentric shaft assembly, a second eccentric shaft assembly, and a third eccentric shaft assembly, respectively. Guide wheel 32 includes a first guide wheel 321 of the first eccentric assembly, a second guide wheel 322 of the second eccentric assembly, and a third guide wheel 323 of the third eccentric assembly. The mounting holes 331 are three, one of the mounting holes 331 penetrates through the first lug plate 333 and the second lug plate 334 which are arranged in parallel for mounting the eccentric shaft 31 of the first eccentric shaft assembly, and the first guide wheel 321 of the first eccentric shaft assembly is rotatably arranged on the eccentric shaft 31 and is positioned between the first lug plate 333 and the second lug plate 334. The other two mounting holes 331 are provided in parallel in the mount base body 332 for mounting the eccentric shaft of the second eccentric shaft assembly and the eccentric shaft of the third eccentric shaft assembly, respectively. Wherein the second guide wheel 322 of the second eccentric shaft assembly and the third guide wheel 323 of the third eccentric shaft assembly are arranged in parallel on the mounting seat body 332 and have axes perpendicular to the axis of the first guide wheel 321 of the first eccentric shaft assembly.

Referring to fig. 7, 8 and 9, a stop member 35 is provided at an end of the eccentric shaft 31 remote from the gear 341, and the stop member 35 prevents the eccentric shaft 31 from moving toward the end close to the gear 341 and being separated from the mounting hole 331. The eccentric shaft 31 has a larger diameter at one end thereof near the gear 341 and is capable of directly engaging with the mounting hole 331 of the corresponding portion of the first lug plate 333. The stop member 35 includes a clamping ring 351 and a sleeve 352, wherein the diameter of one end of the eccentric shaft 31 far away from the gear 341 is smaller, and the sleeve 352 is sleeved on one end of the eccentric shaft 31 far away from the gear 341 and is matched with the mounting hole 331 of the corresponding part on the second lug plate 334 through the outer circumferential surface of the sleeve 352. One end of the sleeve 352 is provided with a radial flange 3521, and the diameter of the radial flange 3521 is larger than that of the mounting hole 331 so that the sleeve 352 can be stopped from passing through the mounting hole 331 in a direction approaching the gear 341. The circumferential surface of the eccentric shaft 31 at one end far away from the gear 341 is provided with a clamping groove 311, the clamping ring 351 is clamped in the clamping groove 311 and protrudes out of the circumferential surface of the eccentric shaft 31, and the sleeve 352 is stopped at one end of the eccentric shaft 31 far away from the gear 341 by the protruding part of the clamping ring 351. That is, the position of the sleeve 352 on the eccentric shaft 31 is defined by a radial flange 3521 at one end of the sleeve 352 and the clamping ring 351.

One end of the eccentric shaft 31 close to the gear 341 is provided with a blind hole 312 with a polygonal cross section, and the cross section of the blind hole 312 can be in a shape matched with an external polygonal wrench, so that the eccentric shaft 31 can be rotated through the matched external polygonal wrench to change the size of the gap between the guide wheel 32 and the lifting guide rail 11, and the size of the gap between the guide wheel 32 and the lifting guide rail 11 can be conveniently adjusted according to needs. Or, a polygonal boss protruding from the end surface of the eccentric shaft 31 is provided at one end of the eccentric shaft 31 close to the gear 341, so that the eccentric shaft 31 can be rotated by a matched inner polygonal wrench, and the size of the gap between the guide wheel 32 and the lifting guide rail 11 can be adjusted.

With continued reference to fig. 3 and 7, the second guide wheel 322 and the third guide wheel 323 are both disposed on the mounting base body 332, and the second guide wheel 322 and the third guide wheel 323 are disposed in parallel and have axes perpendicular to the axis of the first guide wheel 321. The lifting rail 11 comprises at least one monorail 111 with a rectangular cross section, and the second guide wheel 322 and the third guide wheel 323 are respectively used for moving along two sides of the monorail 111, i.e. the monorail 111 is sandwiched between the second guide wheel 322 and the third guide wheel 323. The first guide wheels 321 are intended to move along the outer vertical surface of the monorail 111, so that one guide assembly 3 can limit several degrees of freedom of the cargo bed 2.

Referring to fig. 10, the lifting rail 11 includes two monorail 111 that are arranged in parallel, the cross section of the upright post 1 is rectangular, and one monorail 111 is respectively arranged on the left and right sides of the upright post 1. The lifting seat 22 comprises a left side plate 221, a right side plate 222 and a middle connecting plate 223, wherein the left side plate 221, the right side plate 222 and the middle connecting plate 223 form a groove-shaped half-hoop structure. The lifting seat 22 is movably embraced in the upright column 1 in a lifting way through the groove-shaped structure and the guide component 3 arranged in the groove-shaped structure. Four guide assemblies 3 are provided, and the four guide assemblies 3 are symmetrically arranged on the upper end and the lower end of the left side plate 221 and the upper end and the lower end of the right side plate 222 in pairs. The two guide assemblies 3 at the upper end and the lower end of the left side plate 221 are used for matching with the single rail 111 at the left side of the upright post 1 for lifting and guiding, and the two guide assemblies 3 at the upper end and the lower end of the right side plate 222 are used for matching with the single rail 111 at the right side of the upright post 1 for lifting and guiding.

The two guide assemblies 3 arranged at the upper end and the lower end of the left side plate 221 comprise two second guide wheels 322 and two third guide wheels 323, the upper second guide wheels 322 and the upper third guide wheels 323 can form a clamping state for the monorail 111 at a relatively high position, and the lower second guide wheels 322 and the lower third guide wheels 323 can form a clamping state for the monorail 111 at a relatively low position, so that the cargo platform 2 can be prevented from inclining or swinging in the front-back direction. Similarly, the two guide assemblies 3 disposed at the upper and lower ends of the right side plate 222 also include two second guide wheels 322 and two third guide wheels 323, so as to prevent the cargo bed 2 from tilting or swinging in the front-rear direction. Two liang of four relative guide assemblies 3 include four first leading wheels 321 altogether, two first leading wheels 321 that are located on two guide assemblies 3 of left side board 221 upper end and right side board 222 upper end are in higher height and form through two single tracks 111 that set up relatively respectively and control the clamping state to stand 1, two first leading wheels 321 that are located on two guide assemblies 3 of left side board 221 lower extreme and right side board 222 lower extreme are in lower height and form through two single tracks 111 that set up relatively respectively and control the clamping state to stand 1, thereby the left and right positions of lift seat 22 relative stand 1 has been injectd on the co-altitude not, and then avoid the cargo platform 2 to take place the slope or swing in left and right directions.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A stacker, comprising:

the upright post is provided with a lifting guide rail;

the guide assembly comprises a mounting seat and at least one eccentric shaft assembly, the eccentric shaft assembly comprises an eccentric shaft, a guide wheel and a locking assembly, the mounting seat is provided with a mounting hole and is fixed on the lifting seat, the eccentric shaft is mounted in the mounting hole, and the guide wheel is rotatably arranged on the eccentric shaft; the guide wheels can roll along the lifting guide rail; the locking assembly comprises a gear fixed at one end of the eccentric shaft and a locking block fixed on the mounting seat, and a tooth-shaped matching part meshed with the gear to prevent the eccentric shaft from rotating is arranged on the locking block;

2. The stacker of claim 1 wherein the locking block is removably secured to the mount.

3. The stacker according to claim 2, wherein the locking block is provided with a first through hole, the mounting base is provided with threaded holes corresponding to the first through hole, and the locking block is fixed to the mounting base through a screw and the first through hole.

4. The stacker according to claim 1 wherein said locking block is in the form of a sheet, and wherein one side of said locking block adjacent to said gear is cut to form said toothed engagement portion, said toothed engagement portion comprising at least one tooth capable of engaging said gear.

5. The stacker according to claim 3 wherein the locking assembly further comprises a spacer, wherein a second through hole corresponding to the first through hole is formed in the spacer, and the spacer is arranged between the locking block and the mounting seat.

6. The stacker according to claim 5 wherein one end of the spacer is provided with a notch adapted to the outer peripheral surface of the eccentric shaft, and the spacer is clamped on the eccentric shaft through the notch.

7. The stacker according to claim 1 wherein said guide assembly comprises three eccentric shaft assemblies, respectively a first eccentric shaft assembly, a second eccentric shaft assembly, and a third eccentric shaft assembly, wherein said second eccentric shaft assembly and said third eccentric shaft assembly are juxtaposed and the axes of their respective guide wheels are perpendicular to the axis of the guide wheel of said first eccentric shaft assembly, said lifting guide rail comprises at least one monorail having a rectangular cross-section, said guide wheels of said second eccentric shaft assembly and said guide wheels of said third eccentric shaft assembly respectively abut against and are movable along two side surfaces of said monorail, said guide wheels of said first eccentric shaft assembly abut against and are movable along the outer vertical surface of said monorail.

8. The stacker according to claim 7 wherein the mounting seat comprises a first lug plate and a second lug plate which are arranged in parallel, the mounting hole penetrates through the first lug plate and the second lug plate, the guide wheel of the first eccentric shaft assembly is located between the first lug plate and the second lug plate, one end of the eccentric shaft, which is far away from the gear, is provided with a stop component, and the stop component is used for preventing the eccentric shaft from separating from the mounting hole.

9. The stacker according to claim 8 wherein said stopper member comprises a clamp ring and a sleeve, said sleeve being fitted over said eccentric shaft and fitted to said mounting hole through an outer circumferential surface thereof, one end of said sleeve being provided with a radial flange having a diameter larger than that of said mounting hole to stop said sleeve from passing through said mounting hole;

10. The stacker according to claim 7 wherein the cross section of the upright is rectangular, and the left and right sides of the upright are respectively provided with one monorail; the lifting seat is groove-shaped, can be lifted, moved and clasped to the upright post, and comprises a left side plate and a right side plate which are fixed with each other; the guide assemblies are four, the guide assemblies are symmetrically arranged at the upper end and the lower end of the left side plate and the upper end and the lower end of the right side plate in pairs, the two guide assemblies at the upper end and the lower end of the left side plate are used for being matched with the left single rail lifting guide of the stand column, and the two guide assemblies at the upper end and the lower end of the right side plate are used for being matched with the single rail lifting guide at the right side of the stand column.

11. The stacker according to claim 1 wherein said gear is detachably fixed to one end of said eccentric shaft by means of a profile connection.

12. The stacker according to claim 1 wherein one end of the eccentric shaft near the gear is provided with a blind hole with a polygonal cross section or a polygonal boss protruding from an end face of the eccentric shaft.

13. The stacker according to claim 1 wherein the lift drive assembly comprises a hoist, a haulage rope and a fixed pulley, the hoist is fixed to one side of the upright, and the fixed pulley is rotatably disposed at the top of the upright; the traction rope bypasses the fixed pulley, one end of the traction rope is wound on a winding drum of the winding engine, and the other end of the traction rope is connected with the cargo carrying platform.

14. The stacker according to claim 1, further comprising a base and a translation driving assembly, wherein the base is provided with a translation guide rail, and the translation driving assembly is used for driving the upright to move along the translation guide rail.