Lifting guide wheel structure and stacking machine

Abstract

The utility model relates to a lifting guide wheel structure and a stacking machine. The lifting guide wheel structure comprises a support, a rotating shaft, a guide wheel bracket and a guide wheel, the rotating shaft is arranged on the support; the guide wheel support is rotationally connected to the rotating shaft, and two guide wheel shafts which are symmetrical to each other and parallel to the rotating shaft are rotationally arranged on the guide wheel support. The two guide wheels are rotationally connected to the two guide wheel shafts correspondingly. According to the lifting guide wheel structure, the two guide wheels which are symmetrically arranged can rotate around the rotating shaft within a certain angle range through the guide wheel supports, so that when the straightness of the lifting guide rail has large errors or deformation, the guide wheels can rotate within a certain range in a self-adaptive mode; therefore, the situation that the cargo carrying table is blocked due to straightness errors of the lifting guide rails or deformation of the guide rails is avoided, normal operation of the whole stacking machine is guaranteed, the situation that the stress of a single guide wheel is too large during cargo taking is avoided due to the two movable guide wheels, the service life of the guide wheels can be prolonged, and the use cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stackers, in particular to a lifting guide wheel structure and a stacker. Background Art

[0002] A stacker is a logistics device used in an automated warehouse, and its main function is to perform the operation of storing and retrieving goods; it can move quickly in a narrow passage under computer control, and use a telescopic arm or a forklift to take out or put in goods from the shelf.

[0003] The lifting guide wheel is an important structure in the lifting operation of the stacker, which is used to guide the load platform to move up and down along the lifting guide rail, prevent the load platform from swaying left and right, and ensure the stability and accuracy of the stacker during the lifting process; secondly, the load platform and the forklift of the stacker are regarded as a lever mechanism, and the guide wheel abuts against the guide rail to support the load, so as to realize the operation of taking and placing goods by the stacker.

[0004] The existing lifting guide wheel structure on the stacker mostly adopts a fixed guide wheel structure, and one or more guide wheels are fixed on the load platform through a bracket; however, for some ultra-high stackers, due to the long length of the lifting guide rail, it is impossible to ensure the straightness of the lifting guide rail, and the load platform will get stuck during the lifting process, which not only affects the smooth progress of production, but also affects the service life of the guide wheel and increases the use cost of the equipment. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the existing lifting guide wheel structure on the stacker mostly adopts a fixed guide wheel structure, and one or more guide wheels are fixed on the load platform through a bracket; however, for some ultra-high stackers, due to the long length of the lifting guide rail, it is impossible to ensure the straightness of the lifting guide rail, and the load platform will get stuck during the lifting process, which not only affects the smooth progress of production, but also affects the service life of the guide wheel and increases the use cost of the equipment.

[0006] To solve the above technical problem, the utility model provides a lifting guide wheel structure, including

[0007] A support

[0008] A rotating shaft, which is arranged on the support

[0009] A guide wheel bracket, which is rotatably connected to the rotating shaft, and two symmetrically arranged guide wheel shafts parallel to the rotating shaft are rotatably arranged on the guide wheel bracket

[0010] Two guide wheels, which are respectively rotatably connected to the two guide wheel shafts

[0011] In an embodiment of the present utility model, the support includes a base plate, and a trough body is vertically connected to one side of the base plate. The trough body includes two connecting plates that are arranged at intervals in its length direction and are parallel to the base plate, and the rotating shaft is vertically connected between the two connecting plates.

[0012] In an embodiment of the present utility model, one of the connecting plates away from the base plate is penetrated by one end of the rotating shaft, and a first limiting groove is vertically opened on the side surface of this end, and a first clamping plate embedded in the first limiting groove is connected to the connecting plate.

[0013] In an embodiment of the present utility model, a plurality of kidney-shaped holes are symmetrically opened on the base plate.

[0014] In an embodiment of the present utility model, the guide wheel bracket includes two parallel support plates, a central plate corresponding to the position of its center line is vertically connected between the two support plates, and two side plates symmetrically arranged on both sides of the central plate are also vertically connected between the two support plates. Two accommodating positions are formed between the two side plates and the central plate, and the two guide wheels are respectively arranged in the two accommodating positions.

[0015] In an embodiment of the present utility model, the two guide wheel shafts are vertically connected between the two support plates and are respectively located in the two accommodating positions, and one end of the two guide wheel shafts extends outside the support plate on the same side. At the same time, a second limiting groove is vertically opened on the side surface of the section where the guide wheel shaft extends outside the support plate, and a second clamping plate embedded in the second limiting groove is connected to the support plate in parallel.

[0016] In an embodiment of the present utility model, coaxial shaft holes are vertically opened on one side of the two support plates away from the guide wheels, and a shaft sleeve coaxial with the shaft holes is vertically connected between the two support plates. The guide wheel bracket is rotatably connected to the rotating shaft through the shaft sleeve.

[0017] In an embodiment of the present utility model, the guide wheel bracket is rotatably connected to the rotating shaft through an oil-free bushing.

[0018] In an embodiment of the present utility model, the guide wheel adopts a cylindrical roller bearing.

[0019] A stacker includes the lifting guide wheel structure as described in any one of the above.

[0020] The above technical solutions of the present utility model have the following advantages compared with the prior art:

[0021] A lifting guide wheel structure and a stacker according to the present utility model include a support, a rotating shaft, a guide wheel bracket, and guide wheels. The rotating shaft is arranged on the support. The guide wheel bracket is rotatably connected to the rotating shaft, and two symmetrically arranged guide wheel shafts parallel to the rotating shaft are rotatably arranged on the guide wheel bracket. Two guide wheels are arranged and are respectively rotatably connected to the two guide wheel shafts. The two symmetrically arranged guide wheels of the lifting guide wheel structure can rotate around the rotating shaft within a certain angle range through the guide wheel bracket. In this way, when there is a large error or deformation in the straightness of the lifting guide rail, the guide wheels can adaptively rotate within a certain range along with the contact surface with the lifting guide rail, thereby overcoming the occurrence of the load platform jamming situation caused by the straightness error of the lifting guide rail or the deformation of the guide rail, ensuring the normal operation of the entire stacker, and reducing the possibility of guide wheel damage and the equipment usage cost. The structure of the entire device is simple, easy to install and maintain, and has high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in combination with the drawings, where

[0023] Figure 1 is the front view of the lifting guide wheel structure of the preferred embodiment of the present utility model;

[0024] Figure 2 is the side view of the lifting guide wheel structure of the preferred embodiment of the present utility model;

[0025] Figure 3 is the top view of the lifting guide wheel structure of the preferred embodiment of the present utility model.

[0026] Description of the reference numerals in the drawings: 1, support; 11, base plate; 12, connecting plate; 13, first clamping plate; 14, waist-shaped hole; 2, rotating shaft; 3, guide wheel bracket; 31, guide wheel shaft; 32, support plate; 33, second clamping plate; 4, guide wheel; 5, oil pressure cup; 6, oil-free bushing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following further describes the present utility model in combination with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0028] Embodiment 1

[0029] Referring to Figure 1 、 Figure 2 and Figure 3 shown, a lifting guide wheel structure of the present utility model includes,

[0030] support 1;

[0031] The rotating shaft 2 is arranged on the support 1.

[0032] The guide wheel bracket 3 is rotatably connected to the rotating shaft 2, and two symmetrically arranged guide wheel shafts 31 parallel to the rotating shaft 2 are rotatably arranged on the guide wheel bracket 3.

[0033] There are two guide wheels 4, and the two guide wheels 4 are respectively rotatably connected to the two guide wheel shafts 31.

[0034] Specifically, during the operation of the stacker, the guide wheels of the lifting guide wheel structure are in close contact with the lifting guide rail, playing a role of guiding and limiting, which can prevent the load platform connected thereto from swaying left and right during the lifting process, ensuring the stability and accuracy of the load platform during operation. And the guide wheels 4 run in close contact with the lifting guide rail. In this way, when the stacker picks up goods, the overall downward deflection of the load platform and the fork can be kept at a relatively small value, making the required lifting space for the goods relatively small, which brings the possibility of appropriately increasing the number of shelves and storing more goods.

[0035] Specifically, the two symmetrically arranged guide wheels 4 can rotate within a certain angle range around the rotating shaft 2 through the guide wheel bracket 3. In this way, when there is a large error or deformation in the straightness of the lifting guide rail, the guide wheels 4 can adaptively rotate within a certain range along with the contact surface with the lifting guide rail, thereby overcoming the occurrence of the load platform jamming situation due to the straightness error of the lifting guide rail or the deformation of the guide rail, ensuring the normal operation of the entire stacker. And the two movable guide wheels avoid the situation that a single guide wheel is overloaded when picking up goods, which can extend the service life of the guide wheels 4 (bearings) and reduce the use cost of the equipment.

[0036] In an embodiment of the present invention, the support 1 includes a base plate 11, and a groove body is vertically connected to one surface of the base plate 11. The groove body includes two connecting plates 12 arranged at intervals in the length direction thereof and parallel to the base plate 11, and the rotating shaft 2 is vertically connected between the two connecting plates 12.

[0037] In an embodiment of the present invention, one connecting plate 12 away from the base plate 11 is penetrated by one end of the rotating shaft 2, and a first limiting groove is vertically opened on the side surface of this end. A first clamping plate 13 embedded in the first limiting groove is connected to the connecting plate 12.

[0038] In an embodiment of the present invention, a plurality of kidney-shaped holes 14 are symmetrically opened on the base plate 11. The base plate 11 can be connected to the load platform at the kidney-shaped holes 14 through fasteners, and small-range position adjustment can be performed through the kidney-shaped holes, so as to ensure the relative position between the guide wheels 4 and the lifting guide rail.

[0039] In an embodiment of the present utility model, the guide wheel bracket 3 includes two parallel support plates 32. A center plate corresponding to the position of the center line is vertically connected between the two support plates 32. Moreover, two side plates symmetrically arranged on both sides of the center plate are vertically connected between the two support plates 32. Two accommodation positions are formed between the two side plates and the center plate, and the two guide wheels 4 are respectively arranged in the two accommodation positions.

[0040] In an embodiment of the present utility model, the two guide wheel shafts 31 are vertically connected between the two support plates 32 and are respectively located in the two accommodation positions. One end of each of the two guide wheel shafts 31 extends outside the support plate 32 on the same side. At the same time, a second limit groove is vertically opened on the side surface of the section where the guide wheel shaft 31 extends outside the support plate 32, and a second clamping plate 33 embedded in the second limit groove is horizontally connected to the support plate 32. Specifically, the first clamping plate 13 and the second clamping plate 33 are both rectangular plate structures and are respectively connected to the support 1 and the guide wheel bracket 3 by bolts. The shapes and sizes of the first clamping plate 13 and the second clamping plate 33 match the shapes and sizes of the first limit groove and the second limit groove. The two clamping plates respectively clamped in the first limit groove and the second limit groove can limit the axial movement of the rotating shaft 2 and the guide wheel shaft 31, and prevent the rotating shaft 2 and the guide wheel shaft 31 from detaching from their respective structures. More preferably, an oil injection channel extending from one end of the guide wheel shaft 31 to its circumferential surface can be opened on the guide wheel shaft 31, and an oil pressing oil cup 5 is arranged at the input end of the oil injection channel, which is convenient for injecting lubricating oil between the guide wheel 4 and the guide wheel shaft 31, and improving the smoothness and service life of the guide wheel 4 during operation.

[0041] In an embodiment of the present utility model, coaxially arranged shaft holes are vertically opened on the sides of the two support plates 32 away from the guide wheel 4, and a shaft sleeve coaxial with the shaft holes is vertically connected between the two support plates 32. The guide wheel bracket 3 is rotationally connected to the rotating shaft 2 through the shaft sleeve.

[0042] In an embodiment of the present utility model, the guide wheel bracket 3 is rotationally connected to the rotating shaft 2 through an oil-free bushing 6. The oil-free bushing 6 can still maintain lubricity without oil supply or reducing the number of oil supply times, and it has a large bearing pressure and can be used in heavy-load occasions.

[0043] In an embodiment of the present utility model, the guide wheel 4 adopts a cylindrical roller bearing. The cylindrical roller bearing has good radial load bearing capacity and can meet the transfer of heavy goods; and different specifications and models of bearings can be replaced according to actual situations to meet different use requirements.

[0044] Embodiment Two

[0045] The present utility model also discloses a stacker, including a lifting guide wheel structure as in Embodiment One.

[0046] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of this utility model creation.

Claims

1. A hoisting guide wheel structure, characterized in that, Comprising: A support; A rotating shaft, which is arranged on the support; A guide wheel bracket, which is rotatably connected to the rotating shaft, and two symmetrically arranged guide wheel shafts parallel to the rotating shaft are rotatably arranged on the guide wheel bracket; Guide wheels, two of which are provided, and the two guide wheels are respectively rotatably connected to the two guide wheel shafts.

2. The lifting guide wheel structure according to claim 1, characterized in that: The support includes a base plate, and a groove body is vertically connected to one surface of the base plate. The groove body includes two connecting plates arranged at intervals in its length direction and parallel to the base plate, and the rotating shaft is vertically connected between the two connecting plates.

3. The lifting guide wheel structure according to claim 2, wherein: One of the connecting plates away from the base plate is penetrated by one end of the rotating shaft, and a first limiting groove is vertically opened on the side surface of this end, and a first clamping plate embedded in the first limiting groove is connected to the connecting plate.

4. The lifting guide wheel structure according to claim 2, characterized in that: A plurality of waist-shaped holes are symmetrically opened on the base plate.

5. The lifting guide wheel structure according to claim 1, characterized in that: The guide wheel bracket includes two parallel support plates, a central plate corresponding to the position of its center line is vertically connected between the two support plates, and two side plates symmetrically arranged on both sides of the central plate are also vertically connected between the two support plates. Two accommodating positions are formed between the two side plates and the central plate, and the two guide wheels are respectively arranged in the two accommodating positions.

6. The lifting guide wheel structure according to claim 5, characterized in that: The two guide wheel shafts are vertically connected between the two support plates and are respectively located in the two accommodating positions, and one end of each of the two guide wheel shafts extends outside the support plate on the same side. At the same time, a second limiting groove is vertically opened on the side surface of the section where the guide wheel shaft extends outside the support plate, and a second clamping plate embedded in the second limiting groove is connected to the support plate in parallel.

7. The lifting guide wheel structure according to claim 6, characterized in that: Axial holes coaxial with each other are vertically opened on one side of the two support plates away from the guide wheels, and a bushing coaxial with the axial holes is vertically connected between the two support plates. The guide wheel bracket is rotatably connected to the rotating shaft through the bushing.

8. The lifting guide wheel structure according to claim 1, characterized in that: The guide wheel bracket is rotatably connected to the rotating shaft through an oil-free bushing.

9. The lifting guide wheel structure according to claim 1, wherein: The guide wheel adopts a cylindrical roller bearing.

10. A stacker, characterized in that: Including the lifting guide wheel structure according to any one of claims 1-9.

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