Stacking machine pallet fork of special-shaped structure

Abstract

The stacking machine pallet fork of the special-shaped structure comprises a bottom plate unit, a middle unit and an upper unit, the bottom plate unit comprises a lower-layer fixing plate, a driving motor, a speed reducer, a bottom plate gear and a first transmission rack, and the middle unit comprises a middle-layer special-shaped plate, a second transmission rack and a middle-layer plate gear. The upper unit comprises an upper layer fixing plate and a third transmission rack. According to the utility model, the integrated special-shaped middle-layer book is adopted as a middle driving plate, precise form and location tolerance is achieved, assembly personnel do not need to concern about the assembly problem, and one-time assembly forming can be carried out. And meanwhile, deformation caused by looseness of screws assembled by multiple mechanisms in the prior art does not exist in the long-time using process, high-precision tolerance is achieved, and meanwhile the service life of the pallet fork is greatly prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of stacker crane technology, specifically relating to a stacker crane fork with an irregular structure. Background Technology

[0002] A stacker crane is an automated material handling machine that uses forks to move, stack, and retrieve goods from high-level racks. Generally, a stacker crane forks consist of three units: a bottom drive unit, a middle unit, and an uppermost actuator. The bottom drive unit can be driven by a three-phase asynchronous motor or a servo motor with a reducer. The middle unit is mainly a drive plate, which is responsible for the power connection between the bottom drive unit and the uppermost actuator. The driving power from the bottom drive unit is transmitted to the middle drive plate, which then further transmits the power to the actuator.

[0003] The existing stacker crane fork's middle drive plate uses multiple structural components for connection and assembly. During the connection of multiple upper and lower units, assembly errors are difficult to control, leading to repeated adjustments and reassemblies of the middle unit during installation. Assembly is time-consuming, and the repeated need for reassembly and calibration wastes labor costs, a hidden cost waste in today's high-labor-cost environment. Furthermore, it suffers from significant wear and tear during use, resulting in poor equipment stability. Even with the best possible assembly precision, some wear risks remain due to the difficulty in achieving ultimate accuracy. Utility Model Content

[0004] In view of this, this utility model proposes a stacker crane fork with an irregular structure. By designing the drive plate in the middle unit as an integrated irregular structure to connect and drive the upper and lower units, the assembly process is simplified and the usage effect is improved.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stacker crane fork with an irregular shape includes a base plate unit, a middle unit, and an upper unit.

[0007] The base plate unit includes a lower fixed plate, a drive motor, a reducer, a base plate gear, and a first transmission rack. The drive motor and reducer are installed on the lower side of the lower fixed plate, and the base plate gear is installed on the upper side of the lower fixed plate. The drive motor is connected to the base plate gear through the reducer, and the base plate gear meshes with the first transmission rack.

[0008] The middle unit includes a middle layer irregular plate, a second transmission rack and a middle layer plate gear. The first transmission rack is fixed below the middle layer irregular plate, the second transmission rack is fixed above the lower fixed plate, and the middle layer plate gear is installed inside the middle layer irregular plate and its lower end meshes with the second transmission rack.

[0009] The upper unit comprises an upper fixed plate and a third transmission rack, the third transmission rack is installed on the lower side of the upper fixed plate, and the third transmission rack is engaged with the upper end of the middle layer plate gear.

[0010] As preferred, the first bearing fixing strips are fixedly installed on the two sides of the lower fixed plate, first left-right guide bearings are arranged at equal intervals on the top of the first bearing fixing strips, first front-rear guide bearings are arranged at equal intervals on the inner side of the first bearing fixing strips, first bearing grooves are arranged on the lower part of the two sides of the middle layer profiled plate, the first front-rear guide bearings are located in the first bearing grooves, a stepped surface is arranged above the first bearing grooves, and the first left-right guide bearings are in contact with the stepped surface.

[0011] As preferred, the second bearing fixing strips are symmetrically arranged on the lower side of the upper fixed plate along the length direction of the upper fixed plate, second front-rear guide bearings are arranged at equal intervals on the outer side of the second bearing fixing strips, second bearing grooves corresponding to the second bearing fixing strips are arranged on the upper side of the middle layer profiled plate, and the second front-rear guide bearings are located in the second bearing grooves.

[0012] As preferred, the second left-right guide bearings are arranged at equal intervals on the lower side of the upper fixed plate along the length direction of the upper fixed plate, and third bearing grooves corresponding to the second left-right guide bearings are arranged on the upper side of the middle layer profiled plate.

[0013] As preferred, the second bearing grooves are located on the inner side of the first bearing grooves, and the second bearing grooves are higher than the first bearing grooves.

[0014] As preferred, the third bearing grooves are located between the two second bearing grooves, and the third bearing grooves are higher than the second bearing grooves.

[0015] As preferred, the lower side of the middle layer profiled plate is provided with a gear rack groove, and the bottom plate gear and the first transmission rack are located in the gear rack groove.

[0016] As preferred, the lower side of the middle layer profiled plate is provided with a first rack groove, a second rack groove symmetrical to the first rack groove is arranged above the first rack groove, a gear groove is arranged between the first rack groove and the second rack groove, the middle layer plate gear is installed in the gear groove, the second transmission rack is located in the first rack groove, and the third rack is located in the second rack groove.

[0017] As preferred, the middle layer profiled plate is integrally formed.

[0018] Compared with the prior art, the technical scheme has the following beneficial effects:

[0019] The utility model discloses a middle drive handle of integral special-shaped middle layer, precise form tolerance, and does not need to assemble personnel to care assembly problem, can carry out disposable assembly forming. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the embodiment or prior art description needed to use the drawing make a simple introduction, obviously, the following description in the drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0021] Figure 1 It is the structural schematic diagram of the utility model;

[0022] Figure 2 It is the bottom structural schematic diagram of the utility model;

[0023] Figure 3 It is the exploded view of the utility model;

[0024] Figure 4 It is the structural schematic diagram of the middle layer special-shaped plate in the utility model;

[0025] The annotation in the schematic diagram is: 1, bottom plate unit;2, middle unit;3, upper unit;11, lower fixed plate;12, drive motor;13, speed reducer;14, bottom plate gear;15, first transmission rack;16, first bearing fixed strip;17, first left-right guide bearing;18, first front-rear guide bearing;21, middle layer special-shaped plate;22, second transmission rack;23, middle layer plate gear;31, upper fixed plate;32, third transmission rack;33, second bearing fixed strip;34, second front-rear guide bearing;35, second left-right guide bearing;211, first bearing groove;212, step surface;213, second bearing groove;214, third bearing groove;215, gear and rack groove;216, first rack groove;217, second rack groove;218, gear groove. DETAILED DESCRIPTION

[0026] In order to further understand the content of the utility model, in conjunction with the embodiment, the utility model is described in detail, and the following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0027] REFERENCE Figures 1 to 3 The embodiment relates to a special-shaped structure's stacking machine fork, which comprises a bottom plate unit 1, a middle unit 2 and an upper unit 3,

[0028] The bottom plate unit 1 comprises a lower fixed plate 11, a driving motor 12, a speed reducer 13, a bottom plate gear 14, and a first transmission rack 15. The driving motor 12 and the speed reducer 13 are installed on the lower side of the lower fixed plate 11, the bottom plate gear 14 is installed on the upper side of the lower fixed plate 11, the driving motor 12 is in transmission connection with the bottom plate gear 14 through the speed reducer 13, the bottom plate gear 14 is in mesh with the first transmission rack 15, and the driving motor 12 is a servo motor.

[0029] The middle unit 2 comprises an integrally formed middle layer special-shaped plate 21, a second transmission rack 22, and a middle layer plate gear 23. The first transmission rack 15 is fixed below the middle layer special-shaped plate 21, the second transmission rack 22 is fixed above the lower fixed plate 11, and the middle layer plate gear 23 is installed in the middle layer special-shaped plate 21 and is in mesh with the second transmission rack 22 at the lower end.

[0030] The upper unit 3 comprises an upper fixed plate 31 and a third transmission rack 32. The third transmission rack 32 is installed on the lower side of the upper fixed plate 31 and is in mesh with the upper end of the middle layer plate gear 23.

[0031] As shown in Figure 1 and Figure 4 In the embodiment of the present application, the first bearing fixing strips 16 are fixedly installed on the two sides of the lower fixed plate 11. The first left-right guide bearings 17 are arranged at equal intervals on the top of the first bearing fixing strips 16. The first front-rear guide bearings 18 are arranged at equal intervals on the inner side of the first bearing fixing strips 16. The first bearing grooves 211 are arranged on the lower part of the two sides of the middle layer special-shaped plate 21. The first front-rear guide bearings 18 are located in the first bearing grooves 211. The stepped surfaces 212 are arranged above the first bearing grooves 211. The first left-right guide bearings 17 are in contact with the stepped surfaces 212.

[0032] As shown in Figure 2 and Figure 4 In the embodiment of the present application, the second bearing fixing strips 33 are symmetrically arranged along the length direction of the lower side of the upper fixed plate 31. The second front-rear guide bearings 34 are arranged at equal intervals on the outer side of the second bearing fixing strips 33. The second bearing grooves 213 are arranged on the upper side of the middle layer special-shaped plate 21 and correspond to the second bearing fixing strips 33. The second front-rear guide bearings 34 are located in the second bearing grooves 213.

[0033] The second left-right guide bearings 35 are arranged at equal intervals along the length direction of the lower side of the upper fixed plate 31. The third bearing grooves 214 are arranged on the upper side of the middle layer special-shaped plate 21 and correspond to the second left-right guide bearings 35.

[0034] As shown in Figure 4As shown, the second bearing groove 213 is located inside the first bearing groove 211, and the second bearing groove 213 is higher than the first bearing groove 211.

[0035] As shown, the lower side of the middle layer special-shaped plate 21 is provided with a gear rack groove 215, and the bottom plate gear 14 and the first transmission rack 15 are located in the gear rack groove 215. Figures 1 to 4 As shown, the lower side of the middle layer special-shaped plate 21 is provided with a gear rack groove 215, and the bottom plate gear 14 and the first transmission rack 15 are located in the gear rack groove 215.

[0036] The working principle of the utility model is:

[0037] After receiving the command, the driving motor 12 drives the reducer 13 to rotate the bottom plate gear 14 on the output shaft of the reducer 13 to drive the first transmission rack 15 to produce a straight line motion forward (and the driving motor 12 can realize a backward motion by reversing), the middle layer plate gear 23 is installed on the middle layer special-shaped plate 21 without power, because the middle layer plate gear 23 is buckled by the second transmission rack 22 and the third transmission rack 32, so the movement of the middle layer special-shaped plate 21 drives the middle layer plate gear 23 to roll, at this time, the upper fixed plate 31 produces a forward motion under the drive of the middle layer plate gear 23, and in this motion, the combination of the upper fixed plate 31 and the middle layer special-shaped plate 21 produces a double stroke effect.

[0038] The utility model and its implementation are described above, which is not restrictive, and the structure shown in the drawing is only an embodiment of the utility model, and the actual structure is not limited thereto. Therefore, those skilled in the art are inspired, without departing from the creative purpose of the utility model, without creating a similar structure and embodiment of the technical scheme, which should belong to the protection scope of the utility model.

Claims

1. A stacker fork of profiled construction, characterised in that, It includes bottom plate unit, middle unit and upper unit, The bottom plate unit includes lower fixed plate, driving motor, speed reducer, bottom plate gear, first transmission rack, the driving motor and the speed reducer are installed on the lower side of the lower fixed plate, the bottom plate gear is installed on the upper side of the lower fixed plate, the driving motor is transmissionally connected with the bottom plate gear through the speed reducer, and the bottom plate gear is engaged with the first transmission rack. The middle unit includes middle layer profiled plate, second transmission rack and middle layer plate gear, the first transmission rack is fixed below the middle layer profiled plate, the second transmission rack is fixed above the lower fixed plate, and the middle layer plate gear is installed in the middle layer profiled plate and is engaged with the second transmission rack at the lower end. The upper unit includes upper fixed plate and third transmission rack, the third transmission rack is installed on the lower side of the upper fixed plate, and the third transmission rack is engaged with the upper end of the middle layer plate gear.

2. A stacker fork of profiled construction according to claim 1, characterised in that, The two sides of the lower fixed plate are respectively fixedly provided with first bearing fixed strips, first left-right guide bearings are arranged at equal intervals on the top of the first bearing fixed strips, first front-rear guide bearings are arranged at equal intervals on the inner side of the first bearing fixed strips, the lower part of the two sides of the middle layer profiled plate is provided with first bearing grooves, the first front-rear guide bearings are located in the first bearing grooves, a stepped surface is arranged above the first bearing grooves, and the first left-right guide bearings are in contact with the stepped surface.

3. A stacker fork of profiled construction according to claim 2, characterised in that, The lower side of the upper fixed plate is provided with second bearing fixed strips in a symmetrical manner along the length direction, second front-rear guide bearings are arranged at equal intervals on the outer side of the second bearing fixed strips, and the upper side of the middle layer profiled plate is provided with second bearing grooves corresponding to the second bearing fixed strips.

4. A stacker fork of profiled construction according to claim 3, characterised in that, The lower side of the upper fixed plate is provided with second left-right guide bearings at equal intervals along the length direction, and the upper side of the middle layer profiled plate is provided with third bearing grooves corresponding to the second left-right guide bearings.

5. The stacker fork of claim 3, wherein, The second bearing grooves are located on the inner side of the first bearing grooves and are higher than the first bearing grooves.

6. The stacker fork of claim 4, wherein, The third bearing grooves are located between the two second bearing grooves and are higher than the second bearing grooves.

7. The profiled stacker fork of claim 1, wherein, The lower side of the middle layer profiled plate is provided with gear and rack grooves, and the bottom plate gear and the first transmission rack are located in the gear and rack grooves.

8. The stacker fork of claim 1, wherein, The lower side of the middle layer profiled plate is provided with first rack grooves, a second rack groove symmetrical to the first rack groove is arranged above the first rack groove, a gear groove is arranged between the first rack groove and the second rack groove, the middle layer plate gear is installed in the gear groove, the second transmission rack is located in the first rack groove, and the third transmission rack is located in the second rack groove.

9. The profiled stacker fork of claim 1, wherein, The middle layer profiled plate is integrally formed.

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