High-precision bearing type telescopic pallet fork

Abstract

The utility model discloses a high-precision bearing type telescopic pallet fork, which relates to the technical field of telescopic pallet forks, and comprises a fixed plate, a middle plate and a three-layer plate which are telescopically arranged, and further comprises a telescopic module which comprises telescopic guide rails arranged on the opposite sides of the fixed plate and the three-layer plate, the transmission gear set is driven to rotate through the arranged servo motor and the speed reducer, the telescopic state of the middle plate and the three-layer plate can be precisely controlled in cooperation with meshing transmission between the rack and the transmission gear set, the positioning precision of the clamping jaw reaches + / -0.2 mm, and therefore accurate clamping of goods is achieved; in addition, the risk that the holding clamping jaw collides with the goods when the device stretches out and draws back is greatly reduced, the device and the goods are well protected, in the stretching-out and drawing-back process, the telescopic guide rail slides in the limiting idler wheels, the guiding effect is achieved, meanwhile, bearing can be achieved, and the loading capacity of the holding clamping jaw is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic forks, and particularly relates to a high-precision load-bearing telescopic fork. Background Technique

[0002] A telescopic fork is a logistics device used for handling and stacking operations. It has the characteristic of adjustable length and can be well applied to use in narrow spaces. The operator can adjust the length of the fork according to the size of the goods and the handling requirements, and it has been widely used in warehouses, logistics centers, distribution centers, and any work fields that require frequent handling of goods of different sizes.

[0003] The Chinese patent authorization announcement number is CN216764239U, and the name is a telescopic fork device, including: a first-layer transport plate frame, a second-layer transport plate frame slidably connected to the first-layer transport plate frame, and a third-layer transport plate frame slidably connected to the second-layer transport plate frame. The first-layer transport plate frame, the second-layer transport plate frame, and the third-layer transport plate frame have a stretched state and a coincident state. In the stretched state, the second-layer transport plate frame extends relative to the third transport plate frame along a first direction so that at least some regions do not coincide, and the first-layer transport plate frame extends relative to the second-layer transport plate frame along the first direction so that at least some regions do not coincide. The first-layer transport plate frame extends into the temporary storage rack to pick up goods; in the coincident state, the first-layer transport plate frame, the second-layer transport plate frame, and the third-layer transport plate frame overlap in sequence from top to bottom. The first-layer transport plate frame is used to extend into the temporary storage rack to pick up goods and then transport them, realizing automatic transfer of goods, reducing labor costs, and the telescopic structure also reduces the occupied space;

[0004] The deficiencies of the above prior art solutions are as follows: Although the above solutions are convenient for transporting goods, during the transportation process, their movement accuracy is not good, and it is easy to have a deviation in the clamping point between the telescopic fork and the goods, which not only causes certain inconvenience to the transportation process, but also during use, the deviation of the point position is likely to cause a collision between the telescopic fork and the goods, thus damaging the telescopic fork and the goods. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision load-bearing telescopic fork to solve the technical problems mentioned in the above background technique.

[0006] The technical problems to be solved by the utility model can be realized through the following technical solutions:

[0007] A high-precision load-bearing telescopic fork includes a fixed plate, an intermediate plate, and a three-layer plate that are telescopically arranged;

[0008] It further includes a telescopic module. The telescopic module includes telescopic guide rails arranged on the opposite sides of the fixed plate and the three-layer plate, racks arranged on the fixed plate, the intermediate plate and the three-layer plate, and the telescopic guide rails and the racks are distributed along the telescopic direction. A number of groups of limiting rollers spaced apart and matching the fixed supports are arranged on both sides of the intermediate plate, a transmission gear set meshing with the rack is arranged on the fixed plate and the intermediate plate, and a power assembly is arranged on the side of the fixed plate away from the telescopic guide rail;

[0009] Among them, the power assembly includes a reducer for driving the transmission gear set arranged on the fixed plate to rotate and a servo motor providing a power source.

[0010] As a further solution of the present invention: limit sensors are symmetrically arranged on the top end face of the fixed plate, and positioning plates matching the limit sensors are symmetrically arranged on the top end face of the intermediate plate.

[0011] As a further solution of the present invention: lubricating boxes matching the limiting rollers are arranged on both sides of the intermediate plate, and an oil injection interface is arranged on the lubricating box for externally connecting an oil injection pipe.

[0012] As a further solution of the present invention: a limit stop block is arranged on the bottom wall of the fixed plate, and two groups of fixed supports are symmetrically arranged on the side of the fixed plate where the reducer is arranged, and the fixed supports are located on both sides of the reducer.

[0013] As a further solution of the present invention: a clamping shaft slider is arranged on the top end face of the fixed support, and a truss is arranged between the fixed supports.

[0014] As a further solution of the present invention: a clamping shaft rack is arranged on the top end face of the truss, and a number of groups of spaced clamping jaws are arranged on the side of the three-layer plate away from the telescopic guide rail.

[0015] The beneficial effects of the present invention:

[0016] In the present invention, by setting the servo motor and the reducer to drive the transmission gear set to rotate, and then cooperating with the meshing transmission between the rack and the transmission gear set, the telescopic state of the intermediate plate and the three-layer plate can be accurately controlled, so that the positioning accuracy of the clamping jaws reaches ±0.2 mm, thereby realizing the accurate clamping of the goods, and also greatly reducing the risk of collision between the clamping jaws and the goods during the telescoping of the device, forming good protection for both the device and the goods. During telescoping, the telescopic guide rail slides in the limiting rollers, playing a guiding role and also being able to bear weight, further improving the load-bearing capacity of the clamping jaws. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the contracted state of the device in the present invention;

[0018] Figure 2 It is a front schematic view of the device in the extended state in the present utility model;

[0019] Figure 3 It is a rear schematic view of the device in the extended state in the present utility model.

[0020] Wherein: 1. Fixed plate; 2. Intermediate plate; 3. Three-layer plate; 4. Telescopic guide rail; 5. Rack; 6. Limit roller; 7. Transmission gear set; 8. Reducer; 9. Servo motor; 10. Limit sensor; 11. Positioning plate; 12. Lubrication box; 13. Limit stop; 14. Fixed support; 15. Clamping shaft slider; 16. Truss; 17. Clamping shaft rack; 18. Clamping jaw. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1-3 shown, a high-precision load-bearing telescopic forklift includes a fixed plate 1, an intermediate plate 2, and a three-layer plate 3 that are telescopically arranged;

[0023] It further includes a telescopic module. The telescopic module includes telescopic guide rails 4 arranged on the opposite sides of the fixed plate 1 and the three-layer plate 3, racks 5 arranged on the fixed plate 1, the intermediate plate 2 and the three-layer plate 3, and the telescopic guide rails 4 and the racks 5 are distributed along the telescopic direction. A number of groups of limiting rollers 6 arranged on both sides of the intermediate plate 2 and matching with the fixed supports 14 are spaced apart. A transmission gear set 7 arranged on the fixed plate 1 and the intermediate plate 2 and meshing with the rack 5. A power assembly is arranged on the side of the fixed plate 1 away from the telescopic guide rail 4. Among them, the power assembly includes a reducer 8 for driving the transmission gear set 7 arranged on the fixed plate 1 to rotate and a servo motor 9 providing a power source. The transmission gear set 7 is composed of multiple gears meshing with each other. When the servo motor 9 arranged on the fixed plate 1 drives a set of transmission gear sets 7 to rotate, it can drive the rack 5 arranged on the intermediate plate 2. By driving the rack 5, the intermediate plate 2 can be pushed to perform a telescopic movement. When the intermediate plate 2 is performing a telescopic movement, the rack 5 arranged on the fixed plate 1 drives the transmission gear set 7 arranged on the intermediate plate 2 to rotate, and the transmission gear set 7 on the intermediate plate 2 meshes with the rack 5 arranged on the three-layer plate 3. Thus, when the intermediate plate 2 is telescoping, the three-layer plate 3 can be synchronously driven to perform a telescopic movement, so that the overall telescopic forklift can reach a farther position. When the intermediate plate 2 and the three-layer plate 3 are telescoping, the telescopic guide rail 4 slides in the limiting rollers 6, which can play a guiding role and also a load-bearing role, further improving the load-bearing capacity of the clamping jaws 18, and enabling the clamping jaws 18 to grasp materials with a weight of up to 500 kg.

[0024] In this embodiment, specifically, limit sensors 10 are symmetrically arranged on the top end face of the fixed plate 1, and positioning plates 11 matching with the limit sensors 10 are symmetrically arranged on the top end face of the intermediate plate 2. By the mutual cooperation of the arranged limit sensors 10 and the positioning plates 11, when the device is reset, the positioning plates 11 are inserted into the limit sensors 10, whereby it can be detected whether the device is fully reset, avoiding deviation and forming good protection for the device.

[0025] In this embodiment, specifically, lubricating boxes 12 matching with the limiting rollers 6 are arranged on both sides of the intermediate plate 2, and an oil injection interface is arranged on the lubricating box 12 for externally connecting an oil injection pipe.

[0026] In this embodiment, specifically, a limit stop block 13 is provided on the bottom wall of the fixing plate 1. Two groups of fixed supports 14 are symmetrically arranged on one side of the fixing plate 1 where the speed reducer 8 is provided, and the fixed supports 14 are located on both sides of the speed reducer 8. Specifically, a clamping shaft slider 15 is provided on the top end face of the fixed support 14. A truss 16 is arranged between the fixed supports 14, and a clamping shaft rack 17 is provided on the top end face of the truss 16. A number of clamping jaws 18 are provided on the side of the three-layer plate 3 away from the telescopic guide rail 4 at intervals. The fixed supports 14 provide good support for the clamping shaft slider 15 and the truss 16, ensuring their stability during use. The clamping shaft slider 15 can be connected to an external driving mechanism, and in combination with the engagement of the clamping shaft rack 17 with the driving mechanism, the purpose of clamping the goods from both sides by the telescopic forklift is achieved, ensuring the stability of transporting goods.

[0027] The above has described a detailed description of an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equal changes and improvements made within the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A high-precision load-bearing telescopic forklift fork, comprising a fixed plate (1), an intermediate plate (2) and a three-layer plate (3) which are telescopically arranged; characterized in that: It further comprises a telescopic module, the telescopic module includes telescopic guide rails (4) arranged on the opposite sides of the fixed plate (1) and the three-layer plate (3), racks (5) arranged on the fixed plate (1), the intermediate plate (2) and the three-layer plate (3), and the telescopic guide rails (4) and the racks (5) are distributed along the telescopic direction, several groups of limit rollers (6) arranged on both sides of the intermediate plate (2) and matched with the fixed supports (14) at intervals, a transmission gear set (7) arranged on the fixed plate (1) and the intermediate plate (2) and meshed with the rack (5), and a power assembly arranged on the side of the fixed plate (1) away from the telescopic guide rail (4); Wherein, the power assembly includes a reducer (8) for driving the transmission gear set (7) arranged on the fixed plate (1) to rotate and a servo motor (9) providing a power source.

2. The high-precision load-bearing telescopic fork according to claim 1, wherein Limit sensors (10) are symmetrically arranged on the top end face of the fixed plate (1), and positioning plates (11) matched with the limit sensors (10) are symmetrically arranged on the top end face of the intermediate plate (2).

3. The high-precision load-bearing telescopic fork according to claim 1, characterized in that, Lubricating boxes (12) matched with the limit rollers (6) are arranged on both sides of the intermediate plate (2), and an oil injection interface is arranged on the lubricating box (12) for externally connecting an oil injection pipe.

4. A high-precision load-bearing telescopic forklift according to claim 1, characterized in that, A limit stop block (13) is arranged on the bottom wall of the fixed plate (1), and two groups of fixed supports (14) are symmetrically arranged on one side of the fixed plate (1) where the reducer (8) is arranged, and the fixed supports (14) are located on both sides of the reducer (8).

5. The high-precision load-bearing telescopic forklift according to claim 4, characterized in that, A clamping shaft slider (15) is arranged on the top end face of the fixed support (14), and a truss (16) is arranged between the fixed supports (14).

6. The high-precision load-bearing telescopic forklift according to claim 5, characterized in that, A clamping shaft rack (17) is arranged on the top end face of the truss (16), and several groups of clamping jaws (18) are arranged at intervals on the side of the three-layer plate (3) away from the telescopic guide rail (4).

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