Guide device for lifting lug of lifting appliance

Abstract

The utility model provides a guide device for a lifting lug of a lifting appliance, which relates to the technical field of numerical control machining and comprises a guide cylinder, a slide rail seat is fixedly arranged in the guide cylinder, and a guide shaft is arranged on the slide rail seat in a sliding manner; a connecting cylinder and a traction cylinder are arranged at the two ends of the guide cylinder in a penetrating mode respectively, a solenoid shaft in threaded fit with the end of the guide shaft is arranged in the connecting cylinder, and the solenoid shaft extends towards the outer end of the connecting cylinder to form a shaft rod head. The device has the beneficial effects that the guide cylinder and the connecting cylinder and the traction cylinder which are arranged at the two ends of the device are used as extension structures of a cable between a lifting appliance and a lifting lug, and the axial distance between a shaft rod head and a connecting wheel handle is utilized mainly through the working of a motor and the relative sliding of a guide shaft on a sliding rail seat in the device; and the lifting inclination angle between the connecting wheel handle and the lifting lug cable is adjusted, so that the inclination angle of the lifting lug lifting cable end at each angle is controlled, and the stability of the connection center between the lifting appliance and the lifting lug is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing, and relates to a lifting lug guide device for a sling. Background Art

[0002] In the semi-automated production process, the transfer and handling of large workpieces usually requires the use of special lifting equipment to complete the workpiece transportation between various production lathes;

[0003] The sling is usually fixed with a lifting lug by a cable to clamp and fix the workpiece to be transferred, so as to complete the lifting and transfer of the workpiece according to the lifting position and height of the lifting equipment. The connection between the sling and the lifting lug is usually expanded axially outward and connected to the lifting lug with the sling as a point position. When transporting workpieces with larger cross-sections, the clamping surface of the lifting lug and the outer edge of the workpiece will be affected by the inclination before and after lifting, resulting in unstable clamping, thereby changing the instability of the center of gravity of the connection end between the sling and the lifting lug, affecting the safety of the lifting operation of the sling. Utility Model Content

[0004] In view of the above technical problems existing in the prior art, a lifting lug guide device for a sling is provided.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means:

[0006] A lifting lug guide device for a sling comprises a guide cylinder, a slide rail seat is fixedly arranged in the guide cylinder, and a guide shaft is slidably arranged on the slide rail seat;

[0007] The two ends of the guide cylinder are respectively provided with a connecting cylinder and a traction cylinder, the connecting cylinder is provided with a screw shaft threadedly matched with the end of the guide shaft, and the screw shaft is provided with a shaft rod head extending to the outer end of the connecting cylinder, and a traction capstan is hingedly provided on the shaft rod head, and a connecting wheel handle is rotatably provided at the outer end of the connecting cylinder, and an angular shaft rod is provided in linkage between the connecting wheel handle and the traction capstan;

[0008] A motor is arranged in the traction cylinder, and the motor is transmission-connected to the end of the guide shaft.

[0009] Furthermore, a bearing seat is sleeved on the outer side of the screw shaft, and the bearing seat is fixed to the inner wall of the guide tube.

[0010] Furthermore, a shaft ring fixed to the guide cylinder is disposed adjacent to the slide rail seat and the screw tube shaft, and the guide shaft and the shaft ring are slidably matched.

[0011] Furthermore, the connecting wheel handle is an I-shaped metal wheel handle, and the rotation angle between the connecting wheel handle and the connecting tube is relatively fixed.

[0012] Furthermore, the bottoms of the connecting cylinder and the traction cylinder are both fixedly provided with feet, and the bottoms between the two feet are fixedly provided with a rail plate.

[0013] Furthermore, a spring shaft is provided between the foot seat and the rail plate member.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The guide device for the lifting lug of the sling uses the guide cylinder in the device and the connecting cylinder and the traction cylinder arranged at both ends as the extension structure of the cable between the sling and the lifting lug. The device mainly uses the axial distance between the shaft rod head and the connecting wheel handle to adjust the lifting inclination angle between the connecting wheel handle and the lifting lug cable through the operation of the motor and the relative sliding of the guide shaft on the slide rail seat, thereby controlling the inclination angle of the lifting cable end of the lifting lug at various angles to maintain the stability of the connection center between the sling and the lifting lug. Compared with the traditional sling and lifting lug installation method, the practicality and safety of the guide device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the internal plane structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal planar structure of the foot base of the utility model.

[0019] Markings in the figure: 1-guide cylinder; 2-foot seat; 3-connecting cylinder; 4-rail plate; 5-traction cylinder; 6-motor; 7-guide shaft; 8-slide rail seat; 9-screw shaft; 10-shaft ring; 11-bearing seat; 12-axle rod head; 13-connecting wheel handle; 14-traction capstan; 15-angle shaft rod; 16-spring shaft. DETAILED DESCRIPTION

[0020] See also Figure 1-3 , the embodiments of the utility model are further described;

[0021] A lifting lug guide device for a sling comprises a guide cylinder 1, a slide rail seat 8 is fixedly arranged in the guide cylinder 1, and a guide shaft 7 is slidably arranged on the slide rail seat 8;

[0022] A connecting cylinder 3 and a traction cylinder 5 are respectively provided at both ends of the guide cylinder 1. A screw shaft 9 threadedly matched with the end of the guide shaft 7 is provided in the connecting cylinder 3, and a shaft head 12 is extended to the outer end of the connecting cylinder 3. A traction capstan 14 is hingedly provided on the shaft head 12. A connecting wheel handle 13 is rotatably provided at the outer end of the connecting cylinder 3, and an angular shaft rod 15 is linked between the connecting wheel handle 13 and the traction capstan 14.

[0023] A motor 6 is provided in the traction cylinder 5 , and the motor 6 is transmission-connected to the end of the guide shaft 7 .

[0024] The lifting ear guide device uses the connecting tube 3 and the traction tube 5 at both ends of the guide tube 1 as the connecting end of the guide device and the lifting ear cable and the connecting fixed end with the hoisting device frame. In its structure, the axially arranged guide shaft 7 and the slide rail seat 8 are used as the axial support frame of the guide shaft 7. When the motor 6 is working, the relative distance between the guide shaft 7 and the screw tube shaft 9 can be adjusted through the spiral transmission cooperation between the guide shaft 7 and the screw tube shaft 9, that is, the relative distance between the shaft rod head 12 and the connecting wheel handle 13 is changed through the displacement of the screw tube shaft 9 and the shaft rod head 12 in the same axial direction, so as to change the articulation angle between the traction capstan 14 and the angle shaft rod 15 through the axial displacement of the connecting wheel handle 13, thereby pulling the relative rotation angle of the connecting wheel handle 13 relative to the connecting tube 3, and using the connecting wheel handle 13 structure as the connecting end with the lifting ear cable, thereby changing the relative angle formed between the lifting ear and the connecting tube 3;

[0025] Compared with the traditional method of connecting and fixing the sling and the lifting eye, the guide device uses a cylindrical structure installed between the lifting eye cable and the sling frame to utilize the axial displacement guidance of the guide shaft 7 therein to maintain the axial position accuracy of the entire lifting cable extending inward and outward. At the same time, by limiting the inclination angle of the connection end of the lifting cable and the connecting wheel handle 13, the relative angle between the lifting cable and the sling is maintained, thereby maintaining the stability of the center of gravity of the lifting eye and the center point of the sling.

[0026] Preferably, a bearing seat 11 is sleeved on the outer side of the screw shaft 9, and the bearing seat 11 is fixed to the inner wall of the guide tube 1. The bearing seat 11 serves as an axial fixing structure between the screw shaft 9 and the guide tube 1 to adapt to the axial spiral activity of the screw shaft 9 while maintaining the stability of the connection structure with the guide tube 1.

[0027] Preferably, a shaft ring 10 fixed to the guide cylinder 1 is arranged adjacent to the slide rail seat 8 and the screw shaft 9, and the guide shaft 7 is slidably matched with the shaft ring 10. The shaft ring 10 serves as an axial structure between the guide shaft 7 and the guide cylinder 1 to adapt to the axial displacement activity of the guide shaft 7, and cooperates with the guide cylinder 1 structure to connect and support the end of the guide shaft 7.

[0028] Preferably, the connecting wheel handle 13 is an I-shaped metal wheel handle, and the rotation angle between the connecting wheel handle 13 and the connecting tube 3 is relatively fixed. The I-shaped wheel structure of the connecting wheel handle 13 is used to set the cable structure of the fixed lifting ear, so as to challenge the rotation angle of the connecting wheel handle 13 while synchronously adjusting the outward inclination angle between the connecting wheel handle 13 and the lifting cable, thereby ensuring the structural linkage between the connecting wheel handle 13 and the lifting ear cable.

[0029] Preferably, a foot seat 2 is fixedly provided at the bottom of the connecting cylinder 3 and the traction cylinder 5, and a rail plate 4 is fixedly provided at the bottom between the two foot seats 2. The cylinder structure of the device is horizontally docked and fixed with the sling frame by means of the rail plate 4 at the bottom of the foot seat 2. The fixed structure can challenge the horizontal position of the entire cylinder structure of the device on the sling frame through the relative distance formed between the rail plate 4 and the foot seat 2.

[0030] On the basis of the above, a spring shaft 16 is arranged between the foot 2 and the rail plate 4, so that the spring shaft 16 arranged between the foot 2 and the rail plate 4 serves as a longitudinal buffer structure in the supporting direction of the foot 2, so as to avoid the impact of instantaneous force before and after lifting on the stability of the foot 2 and the entire cylinder structure.

[0031] The implementation method of the device is that the connecting cylinder 3 and the traction cylinder 5 at both ends of the guide cylinder 1 serve as the connecting end of the guide device with the lifting ear and cable and the connecting fixed end with the sling frame, and the axially arranged guide shaft 7 and the slide rail seat 8 serve as the axial support frame of the guide shaft 7. When the motor 6 is working, the relative distance between the guide shaft 7 and the screw shaft 9 is adjusted by the spiral transmission cooperation between the guide shaft 7 and the screw shaft 9, that is, the relative distance between the shaft rod head 12 and the connecting wheel handle 13 is changed by the displacement of the screw shaft 9 and the shaft rod head 12 in the same axial direction, and the articulation angle between the traction capstan 14 and the angle shaft rod 15 is changed by the axial displacement of the connecting wheel handle 13, thereby pulling the relative rotation angle of the connecting wheel handle 13 relative to the connecting cylinder 3, and using the connecting wheel handle 13 structure as the connecting end with the lifting ear and cable, thereby changing the relative angle formed between the lifting ear and the connecting cylinder 3.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A lifting lug guide device for a sling, characterized in that: It comprises a guide cylinder (1), a slide rail seat (8) is fixedly arranged in the guide cylinder (1), and a guide shaft (7) is slidably arranged on the slide rail seat (8); The two ends of the guide cylinder (1) are respectively provided with a connecting cylinder (3) and a traction cylinder (5), the connecting cylinder (3) is provided with a screw shaft (9) threadedly matched with the end of the guide shaft (7), and the screw shaft (9) is provided with a shaft rod head (12) extending toward the outer end of the connecting cylinder (3), and a traction capstan (14) is hingedly provided on the shaft rod head (12), and a connecting wheel handle (13) is rotatably provided at the outer end of the connecting cylinder (3), and an angular shaft rod (15) is provided in linkage with the connecting wheel handle (13) and the traction capstan (14); The traction cylinder (5) is provided with a motor (6), and the motor (6) is drivingly connected to the end of the guide shaft (7).

2. A lifting lug guide device for a sling according to claim 1, characterized in that: A bearing seat (11) is sleeved on the outer side of the screw shaft (9), and the bearing seat (11) is fixed to the inner wall of the guide cylinder (1).

3. A lifting lug guide device for a sling according to claim 1, characterized in that: A shaft ring (10) fixed to the guide cylinder (1) is disposed adjacent to the slide rail seat (8) and the screw tube shaft (9), and the guide shaft (7) and the shaft ring (10) are slidably matched.

4. A lifting lug guide device for a sling according to claim 1, characterized in that: The connecting wheel handle (13) is an I-shaped metal wheel handle, and the rotation angle between the connecting wheel handle (13) and the connecting cylinder (3) is relatively fixed.

5. The lifting lug guide device of claim 1, characterized in that: A foot seat (2) is fixedly arranged at the bottom of the connecting cylinder (3) and the traction cylinder (5), and a rail plate member (4) is fixedly arranged at the bottom between the two foot seats (2).

6. A lifting lug guide device for a sling according to claim 5, characterized in that: A spring shaft (16) is provided between the foot seat (2) and the rail plate member (4).

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