Distance-adjustable forklift fork arm and automatic transportation forklift

Abstract

The forklift fork arm with the adjustable distance comprises a back frame, side plates are arranged on the two sides of the back frame, a two-way screw rod is connected between the two side plates in a rotating mode, threads on the two sides of the two-way screw rod are different in rotating direction, a left fork arm body and a right fork arm body are connected to the threads on the two sides of the two-way screw rod in a threaded mode respectively, and the left fork arm body and the right fork arm body are in threaded connection. A worm gear is arranged in the middle of the two-way screw, a worm is meshed with the worm gear, and a motor is connected to the worm. Precise adjustment of the distance between the fork arms is achieved through transmission of the two-way screw and the worm and gear, the electronic-grade isopropanol packing barrel conveying device can adapt to conveying of electronic-grade isopropanol packing barrels of different sizes, the stability and reliability of movement of the fork arms are guaranteed by combining structures such as the sliding rails, the springs and the limiting columns, and stable conveying of the electronic-grade isopropanol packing barrels is guaranteed. The distance sensor monitors the distance between the fork arms in real time, data support is provided for automatic control, and operation efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to an adjustable forklift fork arm and an automated transport forklift. Background Technology

[0002] In the electronics industry, electronic-grade isopropanol is widely used as an important cleaning and etching agent in the manufacturing of semiconductors, liquid crystal displays, and other electronic components. It has extremely high requirements for purity and impurity content; therefore, special measures must be taken during transportation and storage to prevent contamination and ensure product quality.

[0003] Currently, electronic-grade isopropanol is typically packaged and transported in specialized drums. However, different sizes and models of electronic-grade isopropanol drums vary in dimensions, while traditional forklifts have fixed fork arm spacing, making it difficult to accommodate the handling needs of drums of various sizes. When handling drums of different sizes, it is often necessary to change forklifts or use special adapters, which not only wastes time and effort but also increases the complexity and cost of operations. Utility Model Content

[0004] The main purpose of this invention is to provide a forklift fork arm with adjustable spacing and an automated transport forklift to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] An adjustable-pitch forklift fork arm and an automated transport forklift include a back frame, side plates on both sides of the back frame, a bidirectional screw rotatably connected between the two side plates, the threads on both sides of the bidirectional screw having different directions of rotation, a left fork arm body and a right fork arm body respectively threaded onto the threads on both sides of the bidirectional screw, a worm gear is provided in the middle of the bidirectional screw, a worm is meshed on the worm gear, and a motor is connected to the worm.

[0007] Preferably, a left rear slide rail and a right rear slide rail are respectively provided on the back frame behind the left fork arm body and the right fork arm body, and a left rear slider and a right rear slider are respectively provided on the rear side of the left fork arm body and the right fork arm body.

[0008] Preferably, a support plate is provided at the center of the back frame, and the two ends of the left rear slide rail and the right rear slide rail are respectively connected to the sides of the back frame and the support plate. Support seats for supporting the bidirectional screw are provided on both sides of the worm gear on the support plate.

[0009] Preferably, the rear end of the worm extends beyond the support plate, and a bevel gear assembly with a shaft angle of 90 degrees is provided between the worm and the output shaft of the motor.

[0010] Preferably, the top of the back frame is provided with a top plate, and the bottom surface of the top plate is provided with a top slide rail along its length direction. The left fork arm body and the right fork arm body are respectively provided with a left limiting post and a right limiting post, and the top of the left limiting post and the right limiting post are respectively provided with a left top slider and a right top slider.

[0011] Preferably, a left moving block is sleeved on the left limiting post, a lower left spring is provided between the left fork arm body and the left moving block, and an upper left spring is provided between the left moving block and the left top slider; a right moving block is sleeved on the right limiting post, a lower right spring is provided between the right fork arm body and the right moving block, and an upper right spring is provided between the right moving block and the right top slider.

[0012] Preferably, both the left limiting post and the right limiting post are hexagonal structures.

[0013] Preferably, a cover plate is provided at the front of the back frame, and the front end of the worm gear is rotatably connected to the cover plate.

[0014] Preferably, a distance sensor is provided on the inner side of the left fork arm body.

[0015] An automated transport forklift, comprising the forklift arms described in any of the preceding claims.

[0016] The beneficial technical effects of this utility model are as follows:

[0017] This invention achieves precise adjustment of the fork arm spacing through a bidirectional screw and worm gear transmission, enabling the transport of electronic-grade isopropyl alcohol packaging drums of different sizes. Combined with slide rails, springs, and limit posts, it ensures the stability and reliability of the fork arm movement, guaranteeing smooth transport of the electronic-grade isopropyl alcohol packaging drums. A distance sensor monitors the fork arm spacing in real time, providing data support for automated control and improving operational efficiency and safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the forklift fork arm (without cover) structure according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the forklift fork arm (with cover) structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the back structure of a forklift fork arm according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the back frame structure of an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of a bidirectional screw structure according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the left and right fork arm bodies according to an embodiment of the present invention.

[0024] In the diagram: 1. Back frame; 2. Side plate; 3. Bidirectional screw; 4. Left fork arm body; 5. Right fork arm body; 6. Worm gear; 7. Worm; 8. Motor; 9. Left rear slide rail; 10. Right rear slide rail; 11. Left rear slider; 12. Right rear slider; 13. Support plate; 14. Support base; 15. Bevel gear assembly; 16. Top plate; 17. Top slide rail; 18. Left limit post; 19. Right limit post; 20. Left top slider; 21. Right top slider; 22. Left moving block; 23. Lower left spring; 24. Upper left spring; 25. Right moving block; 26. Lower right spring; 27. Upper right spring; 28. Cover plate; 29. ​​Distance sensor. Detailed Implementation

[0025] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0026] like Figures 1-6 As shown, the adjustable forklift fork arm and automatic transport forklift provided in this embodiment includes a back frame 1, side plates 2 on both sides of the back frame 1, and a bidirectional screw 3 rotatably connected between the two side plates 2. The threads on both sides of the bidirectional screw 3 have different directions of rotation. The left fork arm body 4 and the right fork arm body 5 are respectively threaded onto the threads on both sides of the bidirectional screw 3. A worm gear 6 is provided in the middle of the bidirectional screw 3, and a worm 7 is meshed on the worm gear 6. A motor 8 is connected to the worm 7.

[0027] By connecting the bidirectional screw 3 to the left fork arm body 4 and the right fork arm body 5 with the threaded connection, and cooperating with the meshing transmission of the worm gear 6 and the worm 7, the relative movement of the left fork arm body 4 and the right fork arm body 5 can be realized, thereby achieving the purpose of adjusting the fork arm spacing and meeting the requirements of fork arm spacing when handling different goods.

[0028] In this embodiment, as Figure 1 As shown, a left rear slide rail 9 and a right rear slide rail 10 are respectively provided on the back frame 1 behind the left fork arm body 4 and the right fork arm body 5. A left rear slider 11 and a right rear slider 12 are respectively provided on the rear side of the left fork arm body 4 and the right fork arm body 5, providing stable guidance and support. During the adjustment of the fork arm spacing, it is ensured that the left fork arm body 4 and the right fork arm body 5 always move along the predetermined straight line direction, ensuring the smoothness and accuracy of the movement and avoiding jamming or deviation.

[0029] In this embodiment, as Figure 1As shown, a support plate 13 is provided at the center of the back frame 1. The two ends of the left rear slide rail 9 and the right rear slide rail 10 are respectively connected to the sides of the back frame 1 and the support plate 13. Support seats 14 for supporting the bidirectional screw 3 are provided on both sides of the worm gear 6 on the support plate 13, which enhances the stability of the overall structure. The support seats 14 can effectively share the weight of the bidirectional screw 3, reduce the deformation of the bidirectional screw 3 caused by its own weight, ensure the stability of the bidirectional screw 3 during rotation, and thus ensure the accuracy of the fork arm spacing adjustment.

[0030] In this embodiment, as Figure 3 As shown, the rear end of the worm 7 extends out of the support plate 13, and a bevel gear assembly 15 with a shaft angle of 90 degrees is provided between the worm 7 and the output shaft of the motor 8, which realizes the change of the power transmission direction and makes the layout of the motor 8 more flexible.

[0031] In this embodiment, as Figure 1 As shown, a top plate 16 is provided at the top of the back frame 1, and a top slide rail 17 is provided on the bottom surface of the top plate 16 along its length. A left limiting post 18 and a right limiting post 19 are respectively provided on the left fork arm body 4 and the right fork arm body 5. A left top slider 20 and a right top slider 21 are respectively provided at the top of the left limiting post 18 and the right limiting post 19, which constitutes a limiting and guiding system for the fork arm in the vertical direction, thereby enhancing the overall deformation resistance of the fork arm.

[0032] In this embodiment, as Figure 6 As shown, a left moving block 22 is sleeved on the left limit post 18, a lower left spring 23 is provided between the left fork body 4 and the left moving block 22, and an upper left spring 24 is provided between the left moving block 22 and the left top slider 20; a right moving block 25 is sleeved on the right limit post 19, a lower right spring 26 is provided between the right fork body 5 and the right moving block 25, and an upper right spring 27 is provided between the right moving block 25 and the right top slider 21. When the forklift encounters bumps or vibrations during travel, the springs can absorb some of the impact force, reducing damage to the fork and the goods.

[0033] In this embodiment, as Figure 1 As shown, both the left limiting post 18 and the right limiting post 19 are hexagonal structures, and the through holes on the left moving block 22 and the right moving block 25 are also hexagonal. The limiting spring can only deform in the vertical direction to ensure the buffering effect.

[0034] In this embodiment, as Figure 1 As shown, a cover plate 28 is provided at the front of the back frame 1, and the front end of the worm gear 7 is rotatably connected to the cover plate 28 to provide protection and reduce the interference of external environmental factors on internal components.

[0035] In this embodiment, as Figure 1As shown, a distance sensor 29 is provided on the inner side of the left fork arm body 4 to detect the distance between the left fork arm body 4 and the right fork arm body 5 and feed it back to the motor 8 so that the motor 8 can accurately adjust the fork arm spacing.

[0036] An automated transport forklift, comprising the forklift arms described in any of the preceding claims.

[0037] In summary, this embodiment achieves precise adjustment of the fork arm spacing through bidirectional screw 3, worm gear 6, and worm 7 transmission, adapting to the transportation of electronic-grade isopropyl alcohol packaging drums of different sizes. Combined with slide rails, springs, and limit posts, the stability and reliability of the fork arm movement are ensured, guaranteeing smooth transportation of the electronic-grade isopropyl alcohol packaging drums. Distance sensor 29 monitors the fork arm spacing in real time, providing data support for automated control and improving operational efficiency and safety.

[0038] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A forklift fork arm with adjustable spacing and an automated transport forklift, characterized in that: Includes a back frame (1), with side plates (2) on both sides of the back frame (1), and a bidirectional screw (3) rotatably connected between the two side plates (2). The threads on both sides of the bidirectional screw (3) have different directions of rotation. The left fork arm body (4) and the right fork arm body (5) are respectively threaded onto the threads on both sides of the bidirectional screw (3). A worm gear (6) is provided in the middle of the bidirectional screw (3), and a worm (7) is meshed on the worm gear (6). A motor (8) is connected to the worm (7).

2. The adjustable-spacing forklift fork arm and automated transport forklift according to claim 1, characterized in that: The back frame (1) is provided with a left rear slide rail (9) and a right rear slide rail (10) behind the left fork arm body (4) and the right fork arm body (5), respectively. The left rear slider (11) and the right rear slider (12) are provided on the rear side of the left fork arm body (4) and the right fork arm body (5), respectively.

3. The adjustable-spacing forklift arms and automated transport forklift according to claim 2, characterized in that: The back frame (1) has a support plate (13) at its center. The two ends of the left rear slide rail (9) and the right rear slide rail (10) are respectively connected to the sides of the back frame (1) and the support plate (13). The support plate (13) has support seats (14) on both sides of the worm gear (6) for supporting the bidirectional screw (3).

4. The adjustable-spacing forklift arms and automated transport forklift according to claim 3, characterized in that: The rear end of the worm (7) extends out of the support plate (13), and a bevel gear assembly (15) with a shaft angle of 90 degrees is provided between the worm (7) and the output shaft of the motor (8).

5. The adjustable-spacing forklift fork arm and automated transport forklift according to claim 1, characterized in that: The top of the back frame (1) is provided with a top plate (16), and the bottom surface of the top plate (16) is provided with a top slide rail (17) along its length direction. The left fork arm body (4) and the right fork arm body (5) are respectively provided with a left limiting post (18) and a right limiting post (19). The top of the left limiting post (18) and the right limiting post (19) are respectively provided with a left top slider (20) and a right top slider (21).

6. The adjustable-spacing forklift fork arm and automated transport forklift according to claim 5, characterized in that: A left moving block (22) is sleeved on the left limiting post (18), a left lower spring (23) is provided between the left fork arm body (4) and the left moving block (22), and a left upper spring (24) is provided between the left moving block (22) and the left top slider (20); a right moving block (25) is sleeved on the right limiting post (19), a right lower spring (26) is provided between the right fork arm body (5) and the right moving block (25), and a right upper spring (27) is provided between the right moving block (25) and the right top slider (21).

7. The adjustable-spacing forklift arms and automated transport forklift according to claim 6, characterized in that: Both the left limiting post (18) and the right limiting post (19) are hexagonal structures.

8. The adjustable-spacing forklift fork arm and automated transport forklift according to claim 1, characterized in that: A cover plate (28) is provided in front of the back frame (1), and the front end of the worm gear (7) is rotatably connected to the cover plate (28).

9. The adjustable-spacing forklift arms and automated transport forklift according to claim 1, characterized in that: A distance sensor (29) is provided on the inner side of the left fork arm body (4).

10. An automated transport forklift, characterized in that: Including the forklift fork arm as described in any one of claims 1-9.

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