Forklift lifting frame

Abstract

The utility model relates to the technical field of forklifts, in particular to a forklift lifting frame which comprises a lifting frame body, a fork arm carrier is connected to the outer portion of the lifting frame body in a sliding mode, a transmission assembly is arranged in the fork arm carrier, a front fork making contact with goods is connected to one side of the fork arm carrier in an inserted mode, and an adjusting assembly driving the front fork to move is arranged on the inner side of the fork arm carrier. The exterior of the lifting frame is in bolted connection with a fixing frame connected with a forklift, the exterior of the fixing frame is in sliding connection with a limiting block A and a limiting block B, and a driving assembly is arranged in the fixing frame; when the lifting frame is connected with a forklift, the driving assembly in the fixing frame drives the limiting block A and the limiting block B to move, so that the distance between the limiting block A and the limiting block B is conveniently adjusted, the mounting efficiency of the lifting frame is improved, meanwhile, after the fork arm carrier is used, the adjusting assembly and the transmission assembly in the fork arm carrier drive the front fork to enter the fork arm carrier, and the safety performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, specifically to a forklift lifting frame. Background Technology

[0002] Forklifts are industrial handling vehicles, referring to various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. They are commonly used for transporting large items in warehouses and are typically powered by fuel engines or batteries. They are special-purpose motor vehicles used within factories and are widely used in warehouses, ports, factories, and other similar settings.

[0003] Patent No. 202320060001.X discloses a forklift frame lifting device that moves the mast of the forklift to a suitable position, thereby making it more convenient to connect the forklift to the fixed frame.

[0004] However, existing forklift frame lifting devices use two sets of sliders, slide rails, and other structures to connect the fork carriage to the forklift. However, the spacing between the two sets of sliders, slide rails, and other structures is fixed, which affects the installation efficiency of the fork carriage. At the same time, the specifications of the fork carriage cannot be adjusted after use, resulting in low safety performance. Therefore, a forklift lifting frame is designed. Utility Model Content

[0005] In view of the problems in the background art, this utility model provides a forklift lifting frame.

[0006] The technical solution adopted by this utility model to solve its technical problem is a forklift lifting frame, including a lifting frame, a fork carriage slidably connected to the outside of the lifting frame, a transmission component inside the fork carriage, a front fork inserted into one side of the fork carriage to contact the goods, an adjustment component for driving the front fork to move inside the fork carriage, a fixed frame for connecting to a forklift bolted to the outside of the lifting frame, a limit block A and a limit block B slidably connected to the outside of the fixed frame, and a drive component inside the fixed frame.

[0007] By adopting the above technical solution, when the distance between limit block A and limit block B needs to be adjusted, the drive component in the fixed frame drives limit block A and limit block B to move, thereby facilitating the adjustment of the distance between limit block A and limit block B and improving the installation efficiency of the lifting frame.

[0008] After the fork carriage is used, the adjustment and transmission components inside the fork carriage drive the fork into the fork carriage to improve safety performance.

[0009] Specifically, the transmission assembly includes a motor B, a reducer B, a worm gear, and a worm wheel. The motor B, which provides power, is bolted to the outside of the fork carriage, and the reducer B is connected to a flange on one side of the motor B. The worm gear is keyed to the inside of the reducer B, and a worm wheel is meshed with the outside of the worm gear.

[0010] By adopting the above technical solution, when the worm gear needs to be rotated, the motor B outside the fork carriage drives the worm to rotate through the reducer B, and then the worm meshes with the worm gear to rotate.

[0011] Specifically, the adjustment assembly includes a threaded rod, a threaded sleeve, and a drive rod. The threaded rod is splined to the inner side of the worm gear, and the threaded sleeve is threaded to the outer side of the threaded rod. The drive rod, which is connected to the front fork, is symmetrically welded to the outer side of the threaded sleeve.

[0012] By adopting the above technical solution, when the drive rod needs to be moved, the worm gear drives the threaded rod to rotate, and then the threaded sleeve outside the threaded rod is limited by the external structure, so that the threaded sleeve drives the external drive rod to move.

[0013] Specifically, the drive assembly includes a motor A, a reducer A, a threaded sleeve A, a threaded sleeve B, a double-acting lead screw, a support rod A, and a support rod B. The motor A, which provides power, is bolted inside the fixed frame. The reducer A is connected to a flange on one side of the motor A. The double-acting lead screw is keyed to the inside of the reducer A. The threaded sleeve A and the threaded sleeve B are threaded to the outside of the double-acting lead screw A. The support rod A, which drives the limit block A to move, is symmetrically welded to the outside of the threaded sleeve A. The support rod B, which drives the limit block B to move, is symmetrically welded to the outside of the threaded sleeve B.

[0014] By adopting the above technical solution, when the positions of limit block A and limit block B need to be adjusted, the motor B inside the fixed frame drives the bidirectional lead screw to rotate through the reducer B. The lead sleeves A and B outside the bidirectional lead screw move laterally towards each other or in opposite directions due to the action of the external structure. Subsequently, the support rod A outside the lead sleeve A drives the limit block A to move, and the support rod B outside the lead sleeve B drives the limit block B to move, thereby facilitating the adjustment of the positions of limit block A and limit block B.

[0015] Specifically, the top of the fork carriage is screwed with a housing that protects the motor B.

[0016] By adopting the above technical solution, the housing installed on the top of the fork carriage protects motor B.

[0017] The beneficial effects of this utility model are:

[0018] (1) The forklift lifting frame of this utility model, when the fork carriage stops moving the goods, the motor B outside the fork carriage drives the worm to rotate through the reducer B. The worm meshes with the worm wheel to rotate. Then the worm wheel drives the inner threaded rod to rotate. The threaded sleeve outside the threaded rod is limited by the external structure and drives the externally symmetrically installed drive rod to move. Then the drive rod drives the front fork to move into the interior of the fork carriage, thereby improving the safety performance.

[0019] (2) In the forklift lifting frame described in this utility model, when the positions of limit block A and limit block B need to be adjusted, the motor B inside the fixed frame drives the bidirectional lead screw to rotate through the reducer B. The lead sleeves A and B outside the bidirectional lead screw move laterally towards each other or in opposite directions due to the action of the external structure. Then, the support rod A outside the lead sleeve A drives the limit block A to move, and the support rod B outside the lead sleeve B drives the limit block B to move, thereby facilitating the adjustment of the positions of limit block A and limit block B and improving the installation efficiency of the lifting frame. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of a forklift lifting frame according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the fixing frame of a forklift lifting frame according to the present invention;

[0023] Figure 3 This is a side view of the internal structure of the fork carriage of a forklift lifting frame according to the present invention;

[0024] Figure 4 This is a partial top view of the internal structure of the fork carriage of a forklift lifting frame according to the present invention;

[0025] In the diagram: 1. Lifting frame; 2. Fork carriage; 3. Front fork; 4. Drive rod; 5. Sleeve B; 6. Limit block A; 7. Support rod A; 8. Support rod B; 9. Limit block B; 10. Fixing frame; 11. Double-acting lead screw; 12. Sleeve A; 13. Motor A; 14. Reducer A; 15. Drive assembly; 16. Motor B; 17. Threaded rod; 18. Threaded sleeve; 19. Housing; 20. Reducer B; 21. Worm gear; 22. Worm wheel; 23. Transmission assembly; 24. Adjustment assembly. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] To improve the safety performance of the lifting frame 1 during installation, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention provides a forklift lifting frame, comprising a lifting frame 1, a fork carriage 2 externally slidably connected to the lifting frame 1, a transmission assembly 23 internally provided in the fork carriage 2, a front fork 3 in contact with the goods inserted into one side of the fork carriage 2, an adjustment assembly 24 for driving the front fork 3 to move internally provided in the fork carriage 2, a fixing frame 10 for connecting to a forklift bolted externally to the lifting frame 1, a limit block A6 and a limit block B9 externally slidably connected to the fixing frame 10, and a drive assembly 15 internally provided in the fixing frame 10.

[0028] When it is necessary to adjust the distance between the limit block A6 and the limit block B9 during use, the drive component 15 inside the fixed frame 10 drives the limit block A6 and the limit block B9 to move, thereby facilitating the adjustment of the distance between the limit block A6 and the limit block B9 and improving the installation efficiency of the lifting frame 1.

[0029] After the fork carriage 2 is used, the adjustment component 24 and transmission component 23 inside the fork carriage 2 drive the fork 3 into the interior of the fork carriage 2 to improve safety performance.

[0030] To drive the worm gear 22 to rotate, for example, as shown in the example... Figure 3 As shown, the present invention also includes the transmission assembly 23, which includes a motor B16, a reducer B20, a worm gear 21, and a worm wheel 22. The fork carriage 2 is externally bolted to the motor B16, which provides power, and the reducer B20 is connected to a flange on one side of the motor B16. The reducer B20 is keyed to the inner side of the reducer B20, and the worm gear 21 is externally meshed with the worm wheel 22.

[0031] In use, when the worm gear 22 needs to be rotated, the motor B16 outside the fork carriage 2 drives the worm 21 to rotate through the reducer B20, and then the worm 21 meshes with the worm gear 22 to rotate.

[0032] To move drive lever 4, for example, as follows: Figure 3 As shown, the present invention also includes the adjusting component 24, which includes a threaded rod 17, a threaded sleeve 18 and a drive rod 4. The worm gear 22 is splinedly connected to the threaded rod 17, and the threaded rod 17 is threadedly connected to the threaded sleeve 18. The drive rod 4, which is connected to the front fork 3, is symmetrically welded to the outside of the threaded sleeve 18.

[0033] When in use, when the drive rod 4 is to be moved, the worm gear 22 drives the threaded rod 17 to rotate. Then the threaded sleeve 18 outside the threaded rod 17 is limited by the external structure, so that the threaded sleeve 18 drives the external drive rod 4 to move.

[0034] To adjust the positions of limit blocks A6 and B9, for example, as follows: Figure 2 As shown, this utility model also includes the following: the drive assembly 15 includes a motor A13, a reducer A14, a threaded sleeve A12, a threaded sleeve B5, a bidirectional lead screw 11, a support rod A7, and a support rod B8. The motor A13, which provides power, is bolted inside the fixing frame 10. The reducer A14 is connected to a flange on one side of the motor A13. The bidirectional lead screw 11 is keyed to the inside of the reducer A14. The threaded sleeve A12 and the threaded sleeve B5 are threaded to the outside of the bidirectional lead screw A11. The support rod A7, which drives the limit block A6 to move, is symmetrically welded to the outside of the threaded sleeve A12. The support rod B8, which drives the limit block B9 to move, is symmetrically welded to the outside of the threaded sleeve B5.

[0035] When adjusting the positions of limit blocks A6 and B9, the motor B16 inside the fixed frame 10 drives the bidirectional lead screw 11 to rotate through the reducer B20. The lead sleeves A12 and B5 outside the bidirectional lead screw 11 move laterally towards or in opposite directions due to the action of the external structure. Then, the support rod A7 outside the lead sleeve A12 drives the limit block A6 to move, and the support rod B8 outside the lead sleeve B5 drives the limit block B9 to move, thus facilitating the adjustment of the positions of limit blocks A6 and B9.

[0036] To protect motor B16, for example, such as Figure 3 As shown, the present invention also includes a housing 19 for protecting the motor B16, which is screwed to the top of the fork carriage 2.

[0037] During use, the housing 19 mounted on top of the fork carriage 2 protects the motor B16.

[0038] In use, when the lifting frame 1 is to be installed on a forklift, the motor B16 inside the fixed frame 10, under the action of the PLC controller, drives the bidirectional lead screw 11 to rotate clockwise through the reducer B20. The bidirectional lead screw 11 is installed in the bearing seat of the fixed frame 10 through a deep groove ball bearing, and the bearing seat is welded to the inner wall of the fixed frame 10. The lead sleeves A12 and B5 outside the bidirectional lead screw 11 move laterally towards each other under the action of the external structure. Subsequently, the support rod A7 outside the lead sleeve A12 drives the limit block A6 to move, and the lead sleeve B5... The support rod B8 outside 5 drives the limit block B9 to move, causing the limit blocks A6 and B9 to move laterally towards each other. Then, the limit blocks A6 and B9 slide within symmetrically opened grooves on the surface of the fixed frame 10, improving the stability of their movement. Subsequently, the motor B16, controlled by the PLC controller, drives the bidirectional lead screw 11 to rotate counterclockwise via the reducer B20, causing the support rod A7 outside the threaded sleeve A12 to move the limit block A6, and the support rod B8 outside the threaded sleeve B5 to move the limit block B9. 9. Movement causes limit blocks A6 and B9 to move laterally in opposite directions, adjusting their positions. Then, limit blocks A6 and B9 are fixed to the forklift using bolts. When the fork carriage 2 stops moving the goods, the external motor B16 of the fork carriage 2 drives the worm 21 to rotate via the reducer B20. The worm 21 is mounted in the bearing housing of the fork carriage 2 via a deep groove ball bearing, and the bearing housing is welded to the inner wall of the fork carriage 2. The worm 21 meshes with the worm wheel 22 and rotates. Subsequently, the worm wheel 22... The inner threaded rod 17 is rotated. The threaded rod 17 is installed in the bearing seat of the fork carriage 2 through a deep groove ball bearing. The bearing seat is welded to the inner wall of the fork carriage 2. Then, the threaded sleeve 18 outside the threaded rod 17 is limited by the external structure, which drives the externally symmetrically installed drive rod 4 to move. Then, the drive rod 4 slides in the symmetrically opened grooves on the fork carriage 2, thereby driving the front fork 3 to move into the interior of the fork carriage 2, thereby improving safety performance. At the same time, the drive rod 4 is welded to the outside of the front fork 3 to prevent the front fork 3 from falling out of the fork carriage 2.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A forklift lifting frame, characterized in that, The device includes a lifting frame (1), a fork carriage (2) which is slidably connected to the outside of the lifting frame (1), a transmission assembly (23) which is provided inside the fork carriage (2), a front fork (3) which contacts the goods is inserted into one side of the fork carriage (2), an adjustment assembly (24) which drives the front fork (3) to move is provided inside the fork carriage (2), a fixed frame (10) which is bolted to the outside of the lifting frame (1) and connected to the forklift, a limit block A (6) and a limit block B (9) which are slidably connected to the outside of the fixed frame (10), and a drive assembly (15) which is provided inside the fixed frame (10).

2. A forklift lifting frame according to claim 1, characterized in that, The transmission assembly (23) includes a motor B (16), a reducer B (20), a worm (21), and a worm wheel (22). The fork carriage (2) is externally bolted to the motor B (16) which provides power, and the reducer B (20) is connected to a flange on one side of the motor B (16). The worm (21) is keyed to the inside of the reducer B (20), and the worm wheel (22) is meshed with the outside of the worm (21).

3. A forklift lifting frame according to claim 2, characterized in that, The adjustment assembly (24) includes a threaded rod (17), a threaded sleeve (18), and a drive rod (4). The worm gear (22) is splinedly connected to the threaded rod (17), and the threaded rod (17) is threadedly connected to the threaded sleeve (18). The threaded sleeve (18) is symmetrically welded to the outside of the drive rod (4) which is connected to the fork (3).

4. A forklift lifting frame according to claim 1, characterized in that, The drive assembly (15) includes a motor A (13), a reducer A (14), a threaded sleeve A (12), a threaded sleeve B (5), a double-acting screw (11), a support rod A (7), and a support rod B (8). The motor A (13) providing power is bolted inside the fixed frame (10). The reducer A (14) is connected to a flange on one side of the motor A (13). The double-acting screw (11) is keyed inside the reducer A (14). The threaded sleeve A (12) and the threaded sleeve B (5) are threaded outside the double-acting screw A (11). The support rod A (7) that drives the limit block A (6) to move is symmetrically welded to the outside of the threaded sleeve A (12). The support rod B (8) that drives the limit block B (9) to move is symmetrically welded to the outside of the threaded sleeve B (5).

5. A forklift lifting frame according to claim 2, characterized in that, The top of the fork carriage (2) is screwed to a housing (19) that protects the motor B (16).

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