Tray jacking mechanism

Abstract

The utility model discloses a tray jacking mechanism, and relates to the technical field of tray jacking mechanisms, in particular to a left tray jacking rack and a right tray jacking rack, mechanisms arranged in the left tray jacking rack and the right tray jacking rack are the same, by taking the left tray jacking rack as an example, a supporting frame is arranged in the left tray jacking rack, and the supporting frame is arranged in the right tray jacking rack. The lower end of the supporting frame is connected with a steering gear, and the upper end of the steering gear is connected with a ball screw. By starting the servo speed reducer, under the cooperation of the multi-head steering gear, the transmission rod and the steering gear, the ball screw can rotate so as to be matched with the threaded pipe to drive the tray jacking cross beam to jack up, so that the height of the tray can be increased, after the tray reaches the specified height, the tray is moved away, and then the servo speed reducer rotates reversely to enable the tray jacking cross beam to fall down; the device has the advantages of being simple in structure, convenient to operate, time-saving in transportation, large in transportation amount and capable of improving the conveying efficiency of the tray jacking machine.

Description

Technical Field

[0001] The utility model relates to the technical field of tray lifting mechanisms, in particular to a tray lifting mechanism. Background Art

[0002] Automated warehousing and logistics is an important part of the modern logistics industry. It uses computer technology, mechanical technology, sensor technology, control technology, etc. to automate the warehousing operation process, and realizes warehousing operations such as automated storage, automated sorting, and automated outbound delivery. With the continuous advancement of technology and the expansion of application fields, the development prospects of automated warehousing and logistics will be broader.

[0003] In the automated warehousing and logistics industry, the pallet lifter is a mechanism used to increase the height of the pallet conveying. In the automated testing machine, when the pallet reaches the specified position, the lifter lifts the bottom plate to drive the pallet to increase its height and then moves it away through the transfer mechanism.

[0004] However, existing pallet jacking machines generally use hydraulic cylinders for jacking, but after long-term use, they may cause reduced jacking force and fluid leakage, thereby affecting the jacking of the pallet and reducing the jacking and transportation efficiency. Utility Model Content

[0005] The present invention aims at the shortcomings and defects of low lifting efficiency in the prior art in the above-mentioned background technology.

[0006] The pallet lifting mechanism disclosed by the utility model comprises a left pallet lifting frame and a right pallet lifting frame, the left pallet lifting frame and the right pallet lifting frame having the same internal mechanisms, taking the left pallet lifting frame as an example: a support frame is arranged inside the left pallet lifting frame, a steering gear is connected to the lower end of the support frame, a ball screw is connected to the upper end of the steering gear, a moving frame is arranged inside the left pallet lifting frame, a threaded pipe is bolted to the lower end of the moving frame, a pallet lifting crossbeam is bolted to the upper end of the moving frame, a servo reducer is arranged between the left pallet lifting frame and the right pallet lifting frame, a multi-head steering gear is connected to the driving end of the servo reducer, and a transmission rod is arranged at the side end of the multi-head steering gear.

[0007] Furthermore, the lower end of the left pallet lifting frame is connected to a bottom plate, a mounting hole is opened in the bottom plate, the upper end of the left pallet lifting frame is connected to a top plate, and the ball screw is rotatably connected in the top plate.

[0008] Furthermore, the ball screw is rotatably connected in the support frame, a threaded groove is provided at the outer end of the ball screw, the ball screw is threadedly connected in the threaded tube, and the pallet lifting beam spans between the left pallet lifting frame and the right pallet lifting frame.

[0009] Furthermore, a universal telescopic coupling is connected to the side end of the multi-head steering gear, and the multi-head steering gear and the transmission rod, and the transmission rod and the steering gear are all connected through the universal telescopic coupling.

[0010] Furthermore, the head steering machine is fixed to the ground by expansion bolts, the upper end of the pallet lifting beam is connected with a wear-resistant plate, the outer end of the transmission rod is provided with a transmission shaft shield, and the transmission shaft shield is fixed to the ground.

[0011] Furthermore, a track bar is connected to the inner side of the left pallet lifting frame, and lifting pulleys are connected to both sides of the movable frame. The lifting pulleys are respectively located on both sides and side ends of the track bar and are rollingly connected to it.

[0012] Furthermore, a limiting frame is connected to the bottom plate of the left pallet lifting frame, the limiting frame is located at the lower end of the pallet lifting beam and can be connected thereto, and the transmission rod passes through the lower end of the limiting frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model starts the servo reducer to drive the transmission rods at both ends to rotate through the multi-head steering gear, and then drives the ball screw to rotate through the steering gear. The rotation of the ball screw acts on the threaded tube, which can drive the mobile frame to move upward, thereby driving the pallet lifting beam to lift up, thereby increasing the height of the pallet. When it reaches the specified height, the pallet is removed, and then the servo reducer rotates in the opposite direction, which will cause the pallet lifting beam to fall and return to the origin. The device has the advantages of simple structure, convenient operation, time-saving transportation, large transportation capacity, and can improve the transportation efficiency of the pallet lifter.

[0015] 2. The utility model is provided with a wear-resistant plate, which has good wear resistance and can avoid direct contact between the pallet and the pallet lifting beam, thereby protecting the pallet lifting beam and extending its service life. By arranging lifting pulleys on both sides of the mobile frame, it can ensure that the mobile frame runs smoothly without tilting when it moves, thereby ensuring the stable operation of the device during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0018] Figure 2 This is a schematic diagram of the mobile frame structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the side structure of the device of the utility model;

[0020] Figure 4 It is a side structural schematic diagram of the left pallet lifting frame of the utility model.

[0021] In the figure: 1. Left pallet lifting frame; 2. Right pallet lifting frame; 3. Support frame; 4. Steering gear; 5. Ball screw; 6. Moving frame; 7. Threaded pipe; 8. Pallet lifting beam; 9. Servo reducer; 10. Multi-head steering gear; 11. Transmission rod; 12. Universal telescopic coupling; 13. Wear-resistant plate; 14. Transmission shaft guard; 15. Track bar; 16. Lifting pulley; 17. Limit frame. DETAILED DESCRIPTION

[0022] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0023] See also Figure 1 , Figure 2 The pallet lifting mechanism of the utility model comprises a left pallet lifting frame 1 and a right pallet lifting frame 2. The left pallet lifting frame 1 and the right pallet lifting frame 2 have the same internal mechanism. Taking the left pallet lifting frame 1 as an example: the lower end of the left pallet lifting frame 1 is connected with a bottom plate, and a mounting hole is opened in the bottom plate. The bottom plate can be fixed to the ground through the mounting hole, so as to fix the left pallet lifting frame 1. The contact area between the bottom plate and the ground is large, and the installation stability of the left pallet lifting frame 1 can be ensured.

[0024] See also Figure 2 , Figure 4A support frame 3 is provided in the left pallet lifting frame 1, and a steering gear 4 is connected to the lower end of the support frame 3. The support frame 3 is fixed on the bottom plate, and the support frame 3 is used to fix the steering gear 4. A ball screw 5 is connected to the upper end of the steering gear 4. The upper end of the left pallet lifting frame 1 is connected to a top plate, and the ball screw 5 is rotatably connected in the top plate. The ball screw 5 is rotatably connected in the support frame 3, so that the two ends of the ball screw 5 are fixed and constrained, so that it can remain stable during rotation. A moving frame 6 is provided in the left pallet lifting frame 1, and a threaded tube 7 is bolted to the lower end of the moving frame 6, and a threaded groove is opened inside the threaded tube 7. A threaded groove is opened at the outer end of the ball screw 5, and the ball screw 5 is threadedly connected in the threaded tube 7, so that the rotation of the ball screw 5 can cooperate with the threaded tube 7, so that the threaded tube 7 can drive the moving frame 6 to move up and down.

[0025] See also Figure 2 , Figure 4 The inner side of the left pallet lifting frame 1 is connected to a track bar 15, and both sides of the mobile frame 6 are connected to lifting pulleys 16. The lifting pulleys 16 are respectively located on both sides of the track bar 15, and the side ends are connected thereto in a rolling manner, so as to constrain the mobile frame 6 to ensure that it does not tilt during operation. The upper end of the mobile frame 6 is bolted to a pallet lifting beam 8, and the pallet lifting beam 8 spans between the left pallet lifting frame 1 and the right pallet lifting frame 2, so that the left pallet lifting frame 1 and the right pallet lifting frame 2 will jointly lift the pallet lifting beam 8, and the upper end of the pallet lifting beam 8 is connected to a wear-resistant plate 13, and the wear-resistant plate 13 It has good wear resistance. A servo reducer 9 is arranged between the left pallet lifting frame 1 and the right pallet lifting frame 2. The driving end of the servo reducer 9 is connected to a multi-head steering gear 10. The multi-head steering gear 10 is fixed to the ground by expansion bolts. A transmission rod 11 is arranged on the side end of the multi-head steering gear 10. The multi-head steering gear 10 can transmit the force generated by the driving end of the servo reducer 9 to the transmission rods 11 at both ends and rotate them. A transmission shaft guard 14 is arranged on the outer end of the transmission rod 11. The transmission shaft guard 14 is fixed to the ground. The transmission shaft guard 14 is used to protect the transmission rod 11 to prevent it from being tilted or falling off due to collision with foreign objects.

[0026] See also Figure 1 , Figure 3 A universal telescopic coupling 12 is connected to the side end of the multi-head steering gear 10. The multi-head steering gear 10 and the transmission rod 11, as well as the transmission rod 11 and the steering gear 4 are connected via the universal telescopic coupling 12. The universal telescopic coupling 12 is used to connect the multi-head steering gear 10 and the steering gear 4 via the transmission rod 11, so that the multi-head steering gear 10 can perform work on the steering gear 4 via the transmission rod 11.

[0027] See also Figure 1 , Figure 3A limiting frame 17 is connected to the bottom plate of the left pallet lifting frame 1. The limiting frame 17 is located at the lower end of the pallet lifting beam 8 and can be connected thereto. The limiting frame 17 is used to prevent the pallet lifting beam 8 from falling excessively. When the pallet lifting beam 8 is at the bottom, it can play a supporting role. The transmission rod 11 passes through the lower end of the limiting frame 17.

[0028] When using the utility model: start the servo reducer 9, its driving end will act on the multi-head steering gear 10, the multi-head steering gear 10 will drive the transmission rod 11 to rotate through the universal telescopic coupling 12, the transmission rod 11 rotates and acts on the steering gear 4, so that the steering gear 4 can drive the ball screw 5 to rotate, the ball screw 5 rotates and cooperates with the threaded tube 7, so that the threaded tube 7 can drive the mobile frame 6 to move upward, so that with the auxiliary action of the lifting pulley 16, the mobile frame 6 will drive the pallet lifting beam 8 to lift smoothly, so as to increase the height of the pallet. When it reaches the specified height, the pallet is removed, and then the servo reducer 9 rotates in the opposite direction, which will cause the pallet lifting beam 8 to fall back to the origin, and this step is repeated until the process is completed.

[0029] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A pallet lifting mechanism, comprising a left pallet lifting frame (1) and a right pallet lifting frame (2), characterized in that: The left pallet lifting frame (1) and the right pallet lifting frame (2) have the same internal mechanism. Taking the left pallet lifting frame (1) as an example: a support frame (3) is arranged inside the left pallet lifting frame (1), the lower end of the support frame (3) is connected to a steering gear (4), the upper end of the steering gear (4) is connected to a ball screw (5), a moving frame (6) is arranged inside the left pallet lifting frame (1), the lower end of the moving frame (6) is bolted to a threaded pipe (7), the upper end of the moving frame (6) is bolted to a pallet lifting crossbeam (8), a servo reducer (9) is arranged between the left pallet lifting frame (1) and the right pallet lifting frame (2), the driving end of the servo reducer (9) is connected to a multi-head steering gear (10), and the side end of the multi-head steering gear (10) is arranged with a transmission rod (11).

2. A pallet lifting mechanism according to claim 1, characterized in that: The lower end of the left pallet lifting frame (1) is connected to a bottom plate, a mounting hole is provided in the bottom plate, the upper end of the left pallet lifting frame (1) is connected to a top plate, and the ball screw (5) is rotatably connected in the top plate.

3. A pallet lifting mechanism according to claim 1, characterized in that: The ball screw (5) is rotatably connected in the support frame (3), a thread groove is provided at the outer end of the ball screw (5), the ball screw (5) is threadedly connected in the threaded tube (7), and the pallet lifting beam (8) spans between the left pallet lifting frame (1) and the right pallet lifting frame (2).

4. A pallet lifting mechanism according to claim 1, characterized in that: The side end of the multi-head steering gear (10) is connected to a universal telescopic coupling (12), and the multi-head steering gear (10) and the transmission rod (11), as well as the transmission rod (11) and the steering gear (4) are all connected via the universal telescopic coupling (12).

5. The pallet lifting mechanism according to claim 1, characterized in that: The multi-head steering gear (10) is fixed to the ground by expansion bolts, the upper end of the pallet lifting beam (8) is connected to a wear-resistant plate (13), the outer end of the transmission rod (11) is provided with a transmission shaft shield (14), and the transmission shaft shield (14) is fixed to the ground.

6. A pallet lifting mechanism according to claim 1, characterized in that: The inner side of the left pallet lifting frame (1) is connected to a track bar (15), and both sides of the movable frame (6) are connected to lifting pulleys (16). The lifting pulleys (16) are respectively located on both sides of the track bar (15) and the side ends are rollingly connected thereto.

7. The pallet lifting mechanism according to claim 1, characterized in that: A limiting frame (17) is connected to the bottom plate of the left pallet lifting frame (1); the limiting frame (17) is located at the lower end of the pallet lifting cross beam (8) and can be connected thereto; and the transmission rod (11) passes through the lower end of the limiting frame (17).

Images