Special lifting appliance for tray carrying

Abstract

The utility model relates to a special lifting appliance for tray carrying, which comprises a mounting frame, a plurality of telescopic positioning rods are arranged at the bottom of the mounting frame, locking devices are arranged on the left side and the right side of the mounting frame, and each locking device comprises a linear driving motor, a driving rod, a first shaft rod and a second shaft rod, the first shaft rod and the second shaft rod are rotationally mounted on the mounting frame in a front-back symmetrical mode, the axis of the first shaft rod and the axis of the second shaft rod are both in the vertical direction, the bottom ends of the first shaft rod and the second shaft rod are both provided with lock heads, the top ends of the first shaft rod and the second shaft rod are both sleeved with cams, and rotating shafts are vertically arranged at the tops of the cams. The two ends of the driving rod are rotationally connected with a rotating shaft at the top of the first shaft rod and a rotating shaft at the top of the second shaft rod correspondingly, the linear driving motor is used for driving the first shaft rod and the second shaft rod to rotate through the driving rod and the cam, the lock head is used for axially rotating to lock goods, the lock head locks the goods, and the goods cannot fall off in the transferring process.

Description

Technical Field

[0001] The utility model relates to the technical field of handling devices, in particular to a special sling for pallet handling. Background Art

[0002] With the continuous expansion of industrial production scale and the rapid development of the logistics industry, the demand for cranes is increasing. At the same time, the requirements for the performance and efficiency of cranes are also getting higher and higher. Traditional crane slings have problems such as cumbersome operation and low efficiency, and cannot meet the needs of modern industrial production. Therefore, the development of special slings for intelligent cranes has broad market prospects. At present, certain achievements have been made in the research on special slings for intelligent cranes at home and abroad. Some advanced slings have realized automated and intelligent operations, improving the hoisting efficiency and quality. However, there are still some problems with existing intelligent slings, such as complex structure, high cost, and difficult maintenance. Therefore, it is necessary to further improve and perfect the design of special slings for intelligent cranes.

[0003] The above-mentioned existing technical solutions have the following defects: The pallet cannot be locked, resulting in the problem that the pallet is likely to slip off. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a special sling for pallet handling to solve the problems existing in the above-mentioned existing technologies.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A special sling for pallet handling includes a mounting frame. A plurality of telescopic positioning rods are arranged at the bottom of the mounting frame. Locking devices are arranged on the left side and the right side of the mounting frame. The locking device includes a linear drive motor, a drive rod, a first shaft rod, and a second shaft rod. The first shaft rod and the second shaft rod are rotatably mounted on the mounting frame symmetrically front and back, and the axes of the first shaft rod and the second shaft rod are both in the vertical direction. Lock heads are arranged at the bottom ends of the first shaft rod and the second shaft rod. Cam wheels are sleeved on the top ends of the first shaft rod and the second shaft rod. A rotating shaft is vertically arranged at the top of the cam wheel. The two ends of the drive rod are respectively rotatably connected to the rotating shafts at the top of the first shaft rod and the rotating shafts at the top of the second shaft rod. The linear drive motor is used to drive the drive rod to move back and forth, and the linear drive motor is used to drive the first shaft rod and the second shaft rod to rotate through the drive rod and the cam wheels. The lock head is used to axially rotate and lock the goods.

[0007] By adopting the above technical solutions, the lock head locks the goods, making the goods non-detachable during the transfer process, greatly increasing the safety of the transfer process.

[0008] In a further embodiment, lugs are provided at the four corners of the top of the mounting bracket, pulleys are rotatably mounted on the lugs, and wear-resistant layers are provided in the grooves of the pulleys.

[0009] By adopting the above technical solution, the service life of the pulley can be increased.

[0010] In a further embodiment, the telescopic positioning rod includes a housing, a return spring and a positioning pin. The positioning pin is slidably mounted at the bottom end of the housing, the return spring is fixedly mounted inside the housing, and the return spring is used to move the positioning pin away from the housing. The bottom end of the positioning pin is conical, and a boss is provided at the top end of the positioning pin. The bottom end surface of the boss is in contact with the inner bottom end surface of the housing.

[0011] In a further embodiment, the drive rod includes a first connecting rod, a second connecting rod and a gear rod. The top end of the gear rod is provided with a gear surface. The first connecting rod is movably connected to the rear side of the gear rod, and the second connecting rod is movably connected to the front side of the gear rod. The length directions of the first connecting rod, the second connecting rod and the gear rod are all in the front-rear direction.

[0012] In a further embodiment, a plurality of fixed positioning pins are equidistantly arranged at the top of the mounting bracket, and the axes of the fixed positioning pins are vertically arranged.

[0013] In a further embodiment, the fixed positioning pin is bolted and fixed to the mounting bracket, and a support flange is provided at the bottom end of the fixed positioning pin.

[0014] In summary, the present utility model has the following beneficial effects:

[0015] 1. The goods are locked by the lock head, so that the goods cannot fall off during the transfer process, greatly increasing the safety effect during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the telescopic positioning rod of the present utility model

[0018] Figure 3 is a schematic diagram of the drive connection relationship structure of the linear drive motor of the present utility model.

[0019] In the figure, 1, mounting bracket; 2, telescopic positioning rod; 21, housing; 22, return spring; 23, positioning pin; 3, locking device; 31, linear drive motor; 32, drive rod; 33, first shaft rod; 34, second shaft rod; 4, lock head; 5, cam; 6, lug; 7, pulley. Detailed implementation manners

[0020] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0021] Among them, the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the attached Figure 1 drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this specification, "a plurality of" means two or more unless otherwise specifically defined.

[0022] Embodiment 1:

[0023] As Figures 1-3As shown in the figure, a special lifting tool for pallet handling includes a mounting frame 1. A plurality of telescopic positioning rods 2 are provided at the bottom of the mounting frame 1. Locking devices 3 are provided on both the left side and the right side of the mounting frame 1. The locking device 3 includes a linear drive motor 31, a drive rod 32, a first shaft rod 33, and a second shaft rod 34. The first shaft rod 33 and the second shaft rod 34 are rotatably mounted on the mounting frame 1 symmetrically front and back, and the axes of the first shaft rod 33 and the second shaft rod 34 are both in the vertical direction. Lock heads 4 are provided at the bottom ends of the first shaft rod 33 and the second shaft rod 34. Cam wheels 5 are sleeved on the top ends of the first shaft rod 33 and the second shaft rod 34. A rotating shaft is vertically provided at the top of the cam wheel 5. The two ends of the drive rod 32 are respectively rotatably connected to the rotating shafts at the top of the first shaft rod 33 and the rotating shafts at the top of the second shaft rod 34. The linear drive motor 31 is used to drive the drive rod 32 to move back and forth. The linear drive motor 31 is used to drive the first shaft rod 33 and the second shaft rod 34 to rotate through the drive rod 32 and the cam wheels 5. The lock head 4 is used to axially rotate and lock the goods. Support ears 6 are provided at the four corners of the top of the mounting frame 1. Pulley wheels 7 are rotatably mounted on the support ears 6. Wear-resistant layers are provided in the grooves of the pulley wheels 7. The telescopic positioning rod 2 includes a housing 21, a return spring 22, and a positioning pin 23. The positioning pin 23 is slidably mounted at the bottom end of the housing 21. The return spring 22 is fixedly mounted inside the housing 21. The return spring 22 is used to move the positioning pin 23 away from the housing 21. The bottom end of the positioning pin 23 is conical. A boss is provided at the top end of the positioning pin 23. The bottom end surface of the boss fits with the inner bottom end surface of the housing. The drive rod 32 includes a first connecting rod, a second connecting rod, and a gear rod. The top end of the gear rod is provided with a gear surface. The first connecting rod is movably connected to the rear side of the gear rod. The second connecting rod is movably connected to the front side of the gear rod. The length directions of the first connecting rod, the second connecting rod, and the gear rod are all in the front-back direction. A plurality of fixed positioning pins 23 are equidistantly provided at the top of the mounting frame 1. The axes of the fixed positioning pins 23 are vertically arranged. The fixed positioning pins 23 are bolted and fixed to the mounting frame 1. A support edge is provided at the bottom end of the fixed positioning pin 23.

[0024] Specific implementation process: The lock head locks the goods, making the goods not fall off during the transfer process, greatly increasing the safety of the transfer process. During actual use, the mounting frame 1 of this device is lowered to the top of the pallet. The telescopic positioning rods 2 at the bottom of the mounting frame guide the position of the mounting frame and the pallet. Then, the linear drive motor 31 is used to drive the lock head to rotate, and the protruding part on the surface of the lock head is used to clamp the pallet to prevent the pallet from falling during hoisting.

[0025] In the embodiments disclosed by the present utility model, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or an integral connection; "attachment" may be a direct attachment or an indirect attachment through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments disclosed by the present utility model may be understood according to specific circumstances.

[0026] This specific embodiment is only an interpretation of the present utility model and is not a limitation thereof. After reading this specification, those skilled in the art may make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A special lifting device for pallet handling, characterized by: The invention comprises a mounting frame (1), a plurality of telescopic positioning rods (2) are arranged at the bottom of the mounting frame (1), a locking device (3) is arranged on the left side of the mounting frame (1) and the right side of the mounting frame (1), the locking device (3) comprises a linear drive motor (31), a drive rod (32), a first shaft rod (33) and a second shaft rod (34), the first shaft rod (33) and the second shaft rod (34) are rotatably mounted on the mounting frame (1) in a front-to-back symmetrical manner, and the axes of the first shaft rod (33) and the second shaft rod (34) are both in a vertical direction, and the bottom ends of the first shaft rod (33) and the second shaft rod (34) are both arranged A lock (4) is provided, the top ends of the first shaft (33) and the second shaft (34) are both sleeved with cams (5), the top of the cam (5) is vertically provided with a rotating shaft, the two ends of the driving rod (32) are respectively rotatably connected with the rotating shaft at the top of the first shaft (33) and the rotating shaft at the top of the second shaft (34), the linear driving motor (31) is used to drive the driving rod (32) to move forward and backward, the linear driving motor (31) is used to drive the first shaft (33) and the second shaft (34) to rotate through the driving rod (32) and the cam (5), and the lock (4) is used to axially rotate and lock the goods.

2. A special lifting device for pallet handling according to claim 1, characterized in that: The four corners of the top of the mounting frame (1) are all provided with supporting ears (6), and pulleys (7) are rotatably mounted on the supporting ears (6), and wear-resistant layers are provided in the grooves of the pulleys (7).

3. A special lifting device for pallet handling according to claim 1, characterized in that: The telescopic positioning rod (2) comprises a shell (21), a return spring (22) and a positioning pin (23); the positioning pin (23) is slidably mounted on the bottom end of the shell (21); the return spring (22) is fixedly mounted inside the shell (21); the return spring (22) is used to move the positioning pin (23) away from the shell (21); the bottom end of the positioning pin (23) is arranged in a conical shape; the top end of the positioning pin (23) is arranged with a boss; the bottom end surface of the boss is in contact with the inner bottom end surface of the shell (21).

4. The special lifting device for pallet handling according to claim 1, characterized in that: The driving rod (32) comprises a first connecting rod, a second connecting rod and a gear rod, the top end of the gear rod is arranged as a gear surface, the first connecting rod is movably connected to the rear side of the gear rod, the second connecting rod is movably connected to the front side of the gear rod, and the length directions of the first connecting rod, the second connecting rod and the gear rod are all front-to-back directions.

5. The special lifting device for pallet handling according to claim 1, characterized in that: A plurality of fixed positioning pins (23) are arranged at equal intervals on the top of the mounting frame (1), and the axes of the fixed positioning pins (23) are arranged vertically.

6. A special lifting device for pallet handling according to claim 5, characterized in that: The fixed positioning pin (23) is bolted and fixed to the mounting frame (1), and a supporting extension is provided at the bottom end of the fixed positioning pin (23).

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