CN219259442U

CN219259442U - Lifting mechanism and working machine

Info

Publication number: CN219259442U
Application number: CN202320234334.XU
Authority: CN
Inventors: 孙永清; 兰海; 张鹏飞
Original assignee: Sany Robot Equipment Xi'an Co ltd
Current assignee: Sany Robot Equipment Xi'an Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-06-27
Anticipated expiration: 2033-02-16

Abstract

The utility model relates to the technical field of lifting devices, and provides a lifting mechanism and a working machine, wherein the lifting mechanism comprises a driving belt pulley which is arranged on a first beam; the driven belt pulley assembly is arranged on the second beam; the second cross beam and the first cross beam are arranged in parallel, and a hollow upright post with an opening at the top is vertically arranged between the second cross beam and the first cross beam; the side surface of the upright post is provided with a through hole; and one end of the synchronous belt is connected with the bottom of the objective table, and the other end of the synchronous belt sequentially winds the driving belt wheel and the driven belt wheel assembly and then penetrates out of the through hole and is connected with the top of the objective table. According to the lifting mechanism and the operation machine, on one hand, the synchronous belt is used for lifting the objective table to realize up-and-down movement, so that the structure is compact, and the maintenance is easy; on the other hand, the part of the synchronous belt is placed inside the upright post, the occupied space is small, and the overhanging distance of the objective table is reduced, so that the bending moment of the upright post is reduced.

Description

Lifting mechanism and working machine

Technical Field

The utility model relates to the technical field of lifting devices, in particular to a lifting mechanism and a working machine.

Background

Along with the application development of diversification of the working machinery, the working machinery mechanism tends to develop in the aspects of refinement, humanization, convenient operation and maintenance and the like. For example, a stacker crane is taken as an example, and the stacker crane is a special crane which adopts a fork or a string rod as an object taking device, and grabs, carries and stacks unit cargos at a warehouse, a workshop and the like or takes and puts unit cargos from a high-level goods shelf, and is storage equipment.

The lifting mechanism of the stacker usually adopts a steel wire rope and a synchronous belt to lift the objective table, when the steel wire rope is used for lifting, the size and the weight of a steel wire rope winding transmission structure are large, the winding disorder rope is easy to cause due to the winding of the steel wire rope, and moreover, the steel wire rope needs frequent maintenance and maintenance lubrication, and has higher maintenance cost, so that the synchronous belt lifting mechanism is widely applied due to low maintenance cost.

However, the synchronous belt lifting mechanism in the prior art is usually positioned at the outer side of the upright post, so that the occupied space is large, the overhanging distance of the objective table is increased, and the bending moment of the upright post is increased.

Disclosure of Invention

The utility model provides a lifting mechanism and an operation machine, which are used for solving the defect of large occupied space caused by the fact that a synchronous belt lifting mechanism is usually positioned at the outer side of a stand column in the prior art, and realizing the up-and-down movement of a lifting object stage by using the synchronous belt.

The present utility model provides a lifting mechanism comprising:

the driving belt pulley is arranged on the first cross beam;

the driven belt pulley assembly is arranged on the second beam; the second cross beam and the first cross beam are arranged in parallel, and a hollow upright post with an opening at the top is vertically arranged between the second cross beam and the first cross beam; the side surface of the upright post is provided with a through hole;

and one end of the synchronous belt is connected with the bottom of the objective table, and the other end of the synchronous belt sequentially winds the driving belt pulley and the driven belt pulley assembly, then penetrates out of the through hole and is connected with the top of the objective table.

According to the lifting mechanism provided by the utility model, the lifting mechanism further comprises a tensioning device, wherein the tensioning device is arranged on the second cross beam and is used for adjusting the relative position of the driven pulley assembly and the driving pulley.

According to the present utility model there is provided a lifting mechanism, the tensioning device comprising:

the transverse plate is detachably connected with the second transverse beam;

the vertical plates are oppositely arranged at the bottoms of the transverse plates; guide grooves are formed in the vertical plates along the first direction; the driven belt pulley assembly is rotatably arranged between the pair of vertical plates, and two ends of the driven belt pulley assembly extend to the positions corresponding to the guide grooves respectively;

and the pair of adjusting pieces are respectively used for adjusting the relative positions of the driven pulley assembly in the guide groove.

According to the lifting mechanism provided by the utility model, the riser is provided with an opening for facilitating the replacement of the driven pulley along the second direction at the bottom of the guide groove; the second direction is perpendicular to the first direction.

According to the lifting mechanism provided by the utility model, the tensioning device further comprises a reinforcing plate, and the reinforcing plate is detachably arranged at the opening.

According to the lifting mechanism provided by the utility model, the reinforcing plate is L-shaped, and both ends of the reinforcing plate are flush with the end sides of the vertical plates.

According to the present utility model there is provided a lifting mechanism, the driven pulley assembly comprising:

the two ends of the mandrel extend to the guide grooves respectively;

the driven belt wheel is rotatably sleeved on the periphery of the mandrel;

the bearing and the spacer bush are arranged between the mandrel and the driven belt wheel; and the bearings are positioned at two ends of the spacer bush.

According to the lifting mechanism provided by the utility model, the lifting mechanism further comprises a lock nut, wherein the lock nut is arranged between the bearing and the vertical plate.

According to the lifting mechanism provided by the utility model, the lifting mechanism further comprises a deviation rectifying wheel assembly, the deviation rectifying wheel assembly is rotatably arranged on the second cross beam, and the axis of the deviation rectifying wheel assembly is perpendicular to the axis of the driven belt wheel.

The utility model also provides a working machine comprising a lifting mechanism as described above.

According to the lifting mechanism provided by the utility model, the driving belt pulley is arranged on the first beam, the driven belt pulley assembly is arranged on the second beam, the second beam and the first beam are arranged in parallel, a hollow upright post with an opening at the top is vertically arranged between the second beam and the first beam, and a through hole is formed in the side surface of the upright post; one end of the synchronous belt is connected with the bottom of the objective table, and the other end of the synchronous belt sequentially winds the peripheries of the driving belt pulley and the driven belt pulley, penetrates out of the through hole and is connected with the top of the objective table; on one hand, the synchronous belt is used for lifting the objective table to realize up-and-down movement, so that the structure is compact and the maintenance is easy; on the other hand, the part of the synchronous belt is placed inside the upright post, the occupied space is small, and the overhanging distance of the objective table is reduced, so that the bending moment of the upright post is reduced.

The working machine according to the present utility model includes the lifting mechanism described above, and thus has various advantages described above.

Drawings

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

FIG. 1 is a schematic view of a mounting structure of a lifting mechanism provided by the present utility model;

FIG. 2 is an enlarged schematic view of the structure shown in FIG. 1A according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown in FIG. 1 at B in accordance with the present utility model;

FIG. 4 is a schematic view of the mounting structure of the driven pulley assembly provided by the present utility model;

fig. 5 is an installation side view of a driven pulley assembly provided by the present utility model;

fig. 6 is a sectional view of the installation of the driven pulley assembly provided by the present utility model;

reference numerals:

100. an objective table; 200. a first cross beam; 300. a second cross beam; 400. a column;

1. a driving pulley; 2. a driven pulley assembly; 3. a synchronous belt; 4. a tensioning device; 5. a deviation correcting wheel assembly;

21. a mandrel; 22. a driven pulley; 23. a bearing; 24. a spacer bush; 25. a lock nut; 26. a limit structure;

41. a cross plate; 42. a riser; 43. a guide groove; 44. an adjusting member; 45. reinforcing plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

A lifting mechanism of the present utility model for lifting the stage 100 is described below with reference to fig. 1 to 6, including: the driving pulley 1, the driven pulley assembly 2 and the synchronous belt 3, wherein the driving pulley 1 is arranged on the first beam 200, generally speaking, the driving pulley 1 is detachably and rotatably arranged on the first beam 200, the first beam 200 is a lower beam, the installation of a driving mechanism is convenient, and the driving mechanism can be a driving motor. The driven pulley assembly 2 is arranged on the second cross beam 300; the second cross member 300 and the first cross member 200 are disposed in parallel, and generally, the first cross member 200 and the second cross member 300 are disposed horizontally, that is, parallel to the horizontal plane; and the hollow upright column 400 in the top opening is vertically arranged between the first cross beam 200 and the second cross beam 300, and the top opening of the upright column 400 is convenient for the maintenance of the driven pulley assembly 2. The upright 400 is perpendicular to the first beam 200 and the second beam 300; the side of the column 400 is provided with a through hole; one end of the synchronous belt 3 is connected with the bottom of the objective table 100, the other end of the synchronous belt is sequentially wound around the driving pulley 1 and the driven pulley assembly 2, then penetrates out of the through hole and is connected with the top of the objective table 100, the synchronous belt 3 and the objective table 100 form a closed loop, and the synchronous belt 3 moves up and down along with the rotation of the driving pulley 1 and the driven pulley assembly 2, so that the objective table 100 is driven to move up and down.

As shown in fig. 1, 2 and 3, the lifting mechanism provided by the utility model has the advantages that the driving pulley 1 is arranged on the first beam 200, the driven pulley assembly 2 is arranged on the second beam 300, the structure is compact, the occupied space is small, and the synchronous belt 3 is used for lifting the object stage 100 to realize up-and-down movement, so that the structure is compact and the maintenance is easy; in addition, one end of the synchronous belt 3 is connected with the bottom of the objective table 100, and the other end is sequentially wound around the driving pulley 1 and the driven pulley assembly 2, then penetrates out of the through hole and is connected with the top of the objective table 100, and the synchronous belt 3 is partially arranged inside the upright column 400, so that the occupied space is small, the overhanging distance of the objective table 100 is reduced, and the bending moment of the upright column is reduced.

As shown in fig. 4, in one embodiment of the present utility model, the present utility model further includes a tensioning device 4 disposed on the second beam 300, where the tensioning device 4 is configured to adjust a relative position of the driven pulley assembly 2 and the driving pulley 1, so as to tension the synchronous belt 3 by the tensioning device 4.

As shown in fig. 4 and 5, in one embodiment of the present utility model, the tensioning device 4 includes a cross plate 41, a pair of risers 42, and a pair of adjusters 44, the cross plate 41 being detachably connected with the second cross member 300; a pair of risers 42 are oppositely disposed at the bottom of the cross plate 41; guide grooves 43 are formed in the vertical plates 42 along the first direction; the first direction herein refers to a vertical direction perpendicular to the horizontal plane direction with reference to the horizontal plane. The driven pulley assembly 2 is rotatably arranged between the pair of vertical plates 42, and two ends of the driven pulley assembly 2 extend to corresponding guide grooves 43 respectively; a pair of adjustment members 44 are provided for effecting adjustment of the relative positions of the driven sheave assembly 2 within the guide groove 43, respectively.

In the initial stage of use, the driven pulley assembly 2 is usually provided at the bottom of the guide groove 43 at both ends, and the position of the driven pulley assembly 2 in the guide groove 43 is adjusted by the adjusting member 44 so that the timing belt 3 maintains a proper tension. With the use of the synchronous belt 3 for a period of time, the synchronous belt 3 is slowly stretched, that is, the tension of the synchronous belt 3 is reduced, when the synchronous belt 3 needs to be tensioned, the vertical relative distance between the driven pulley assembly 2 and the driving pulley 1 is stretched by screwing the adjusting piece 44, so that the tensioning of the synchronous belt 3 is realized. Tensioning of the timing belt 3 is achieved in a small space of the driven pulley assembly 2, further reducing the space occupation.

In one embodiment of the utility model, the riser 42 is provided with an opening in the bottom of the guide groove 43 in the second direction for facilitating replacement of the driven pulley assembly 2; the second direction is perpendicular to the first direction, i.e. the second direction is parallel to the horizontal plane. The driven pulley assembly 2 is convenient to replace due to the arrangement of the opening.

As shown in fig. 4 and 5, in one embodiment of the present utility model, the tensioning device 4 further includes a reinforcing plate 45, where the reinforcing plate 45 is detachably disposed at the opening, and the arrangement of the reinforcing plate 45 can ensure the reliability of the overall structure of the tensioning device 4, and after the reinforcing plate 45 is added at the opening, the opening is closed.

As shown in fig. 4 and 5, in one embodiment of the present utility model, the reinforcing plate 45 is provided in an L-shape with both ends thereof being flush with the end sides of the risers 42, not only ensuring reliability of the overall structure of the tensioner 4, but also reducing the occupied space.

As shown in fig. 6, in one embodiment of the present utility model, the driven pulley assembly 2 includes a spindle 21, a driven pulley 22, a bearing 23, and a spacer 24, both ends of the spindle 21 extending to guide grooves 43, respectively; the driven pulley 22 is rotatably sleeved on the periphery of the mandrel 21; a bearing 23 and a spacer 24 are provided between the spindle 21 and the driven pulley 22; and bearings 23 are located at both ends of the spacer 24. The two ends of the mandrel 21 are square, and are matched with the guide groove 43 in the second direction, and the mandrel 21 can move up and down along the guide groove 43, so that the tensioning and anti-loosening of the synchronous belt 3 are realized.

As shown in fig. 6, in one embodiment of the present utility model, the driven pulley assembly 2 further includes a lock nut 25, the lock nut 25 being disposed between the bearing 23 and the riser 42, the lock nut 25 being used to achieve limiting and locking of the driven pulley 22 in the axial direction, preventing movement of the driven pulley 22 in the axial direction during rotation. The lock nut 25 may be located on one side of the driven pulley 22 or on both sides of the driven pulley 22. When the lock nut 25 is located at one side of the driven pulley 22, the other side of the driven pulley 22 is provided with a limiting structure 26 for limiting the driven pulley 22 axially, and the limiting structure 26 and the lock nut 25 limit the two ends of the driven pulley 22 respectively. When the locking nuts 25 are located at two sides of the driven belt pulley 22, the locking nuts 25 at two sides respectively limit two ends of the driven belt pulley 22, so that the driven belt pulley 22 is ensured to be stable in the working process.

As shown in fig. 2, in one embodiment of the present utility model, the present utility model further includes a rectifying wheel assembly 5, where the rectifying wheel assembly 5 is rotatably disposed on the first beam 200, and an axis of the rectifying wheel assembly 5 is perpendicular to an axis of the driven pulley 22, and the rectifying wheel assembly 5 is disposed to prevent side abrasion of the synchronous belt due to an installation error.

The following describes a work machine provided by the present disclosure, and the work machine described below and the lifting mechanism described above may be referred to in correspondence with each other.

Another aspect of the present utility model is also directed to a work machine including a lifting mechanism as described above.

The working machine provided by the utility model can be a single-column stacker or a double-column stacker, and the lifting mechanism can be used.

The working machine provided by the utility model has the advantages that the structure is more compact and the occupied space is small due to the lifting mechanism; a deviation correcting wheel assembly is arranged on one side of the driven belt wheel assembly 2, so that the side face of the synchronous belt is prevented from being worn due to installation errors; and be provided with overspeed device tensioner 4 in driven pulley assembly 2 department, realize the tensioning of hold-in range 3 in less space, the bottom of riser 42 is provided with open structure, conveniently changes driven pulley 22, and is provided with reinforcing plate 45 in open structure department, guarantees overall structure's reliability.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "manner," "particular modes," or "some modes," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or mode is included in at least one embodiment or mode of the embodiments of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or manner. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or ways. Furthermore, various embodiments or modes and features of various embodiments or modes described in this specification can be combined and combined by those skilled in the art without mutual conflict.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A lifting mechanism for lifting an object table, comprising:

the driving belt pulley is arranged on the first cross beam;

2. The lift mechanism of claim 1, further comprising a tensioning device disposed on the second cross member, the tensioning device being configured for adjustment of a relative position of the driven pulley assembly and the drive pulley.

3. The lifting mechanism of claim 2, wherein the tensioning device comprises:

the transverse plate is detachably connected with the second transverse beam;

4. A lifting mechanism as claimed in claim 3, wherein the riser is provided with an opening in the bottom of the guide slot in a second direction for facilitating replacement of the driven pulley assembly; the second direction is perpendicular to the first direction.

5. The lift mechanism of claim 4, wherein the tensioning device further comprises a stiffening plate removably disposed at the opening.

6. The lifting mechanism of claim 5, wherein the reinforcing plate is L-shaped and has both ends flush with the end sides of the riser.

7. A lifting mechanism as claimed in claim 3, wherein the driven pulley assembly comprises:

the two ends of the mandrel extend to the guide grooves respectively;

the driven belt wheel is rotatably sleeved on the periphery of the mandrel;

8. The lift mechanism of claim 7, wherein the driven pulley assembly further comprises a lock nut disposed between the bearing and the riser.

9. The lifting mechanism of claim 8, further comprising a deskewing wheel assembly rotatably disposed on the second beam, an axis of the deskewing wheel assembly being perpendicular to an axis of the driven pulley.

10. A work machine comprising a lifting mechanism as claimed in any one of claims 1 to 9.