Vertical lifting appliance for shaft head of small-sized motor

Abstract

The utility model relates to a small-sized motor shaft head vertical lifting appliance, belongs to the technical field of motor lifting, and solves the technical problems of low efficiency, high cost and the like of the conventional motor vertical lifting. According to the solution, the vertical lifting appliance for the small motor shaft head comprises a clamping sleeve, a lifting ring, an eccentric clamping block and a spring, the clamping sleeve is of a horizontally-placed cylindrical sleeve structure, a clamping inner hole is formed in the clamping sleeve, and the motor shaft extension end extends into the clamping inner hole; hanging rings are arranged at the left ends of the clamping sleeves; a first opening is formed in the center of the side wall of the clamping sleeve, an eccentric clamping block is installed at the first opening, a spigot is formed in the side wall of the right end of the clamping sleeve and used for arranging a spring, one end of the spring sleeves the spigot, and the other end of the spring sleeves the motor shaft extension end. When the eccentric clamping block works, the eccentric clamping block enters the clamping inner hole along the first opening and then makes contact with a key groove of the motor shaft extension. Compared with the prior art, the vertical hoisting device has the advantages of simple structure, low cost, improved vertical hoisting efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor hoisting, and in particular relates to a vertical hoist for a small motor shaft head. Background Art

[0002] Vertical hoisting of small motors typically requires manual flipping, machining slots in the motor shaft and clamping them with a fixture, or drilling threaded holes in the motor rotor shaft for screw-hole hoisting. These hoisting methods require machining the shaft to meet the required dimensions. This can damage the screw holes and affect shaft strength, hindering the hoisting process, ultimately resulting in low hoisting efficiency and high costs. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art and solve the technical problems of low efficiency and high cost in the existing vertical lifting of motors, the utility model provides a small motor shaft head vertical lifting device.

[0004] The utility model is achieved through the following technical solutions.

[0005] The utility model provides a small motor shaft head vertical lifting device, comprising a clamping sleeve, a lifting ring, an eccentric clamping block and a spring;

[0006] The clamping sleeve is a horizontally placed cylindrical sleeve structure, and a clamping inner hole is provided in the clamping sleeve, and the clamping inner hole is used for the motor shaft extension to extend into; a hanging ring is provided at the left end of the clamping sleeve; a first opening is provided in the center of the side wall of the clamping sleeve, and an eccentric clamping block is installed at the first opening; a stop is provided on the right end side wall of the clamping sleeve, and the stop is used to set a spring, one end of the spring is sleeved on the stop, and the other end of the spring is sleeved on the outside of the motor shaft extension.

[0007] Furthermore, a lifting ring mounting hole is provided at the left end of the clamping sleeve, and the lifting ring is installed in the lifting ring mounting hole.

[0008] Furthermore, the eccentric clamping block is an inverted V-shaped structure, and a pin shaft mounting hole is provided on the eccentric clamping block.

[0009] Furthermore, the corners of the eccentric clamping block are all chamfered.

[0010] Furthermore, a first fixing block and a second fixing block are respectively provided at both ends of the eccentric clamping block, and a first through hole and a second through hole are respectively provided on the first fixing block and the second fixing block, which correspond one to one with the pin shaft mounting holes. A torsion spring is provided between the eccentric clamping block and the second fixing block, and the pin shaft passes through the first through hole, the pin shaft mounting hole and the second through hole in sequence to fix the eccentric clamping block to the clamping sleeve.

[0011] Furthermore, when the eccentric clamping block is working, the eccentric clamping block enters the clamping inner hole along the first opening and contacts the keyway of the motor shaft extension end.

[0012] The beneficial effects achieved by the utility model are as follows: the utility model uses a lifting ring, a clamping sleeve, an eccentric clamping block, a first fixed block, a second fixed block, a pin shaft and a torsion spring, has a simple structure and a low production cost. In addition, when the small motor needs to be lifted vertically, the lifting ring is installed at the lifting ring mounting hole, the motor shaft end is inserted into the clamping inner hole of the clamping sleeve, the eccentric clamping block is aligned with the keyway of the motor shaft end, and when the eccentric clamping block contacts the keyway of the motor shaft end, the torsion spring drives the eccentric clamping block to rotate counterclockwise and then clamps the keyway of the motor shaft end. The spring begins to contract, making the clamping of the eccentric clamping block and the keyway of the motor shaft end more reliable. The shaft of the small motor does not need to be separately processed for clamping, and the shaft head does not need to be punched with a lifting threaded hole, thereby improving the efficiency of vertical lifting of the motor.

[0013] Compared with the existing technology, the utility model has the advantages of simple structure, low cost, and improved vertical lifting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the utility model after being assembled with the motor shaft extension end;

[0015] Figure 2 This is a side view of the utility model after being assembled with the motor shaft extension end;

[0016] Figure 3 This is a schematic structural diagram of the clamping sleeve in the utility model;

[0017] Figure 4 It is a structural diagram of the eccentric clamping block in the utility model.

[0018] In the figure: 1. Clamping sleeve; 2. Lifting ring; 3. Eccentric clamping block; 4. Spring; 5. Clamping inner hole; 6. Motor shaft extension end; 7. First opening; 8. Stopper; 9. Lifting ring mounting hole; 10. Pin mounting hole; 11. First fixing block; 12. Second fixing block; 13. First through hole; 14. Second through hole; 15. Torsion spring; 16. Pin. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown, the small motor shaft head vertical lifting device includes a clamping sleeve 1, a lifting ring 2, an eccentric clamping block 3 and a spring 4, which has a simple structure and low manufacturing cost.

[0021] The clamping sleeve 1 is a horizontally placed cylindrical sleeve structure. A clamping inner hole 5 is provided in the clamping sleeve 1. The clamping inner hole 5 is used for the motor shaft extension 6 to extend therein. The existence of the clamping inner hole 5 is used to place the motor shaft extension 6, which is convenient for better lifting. A lifting ring 2 is provided at the left end of the clamping sleeve 1. A lifting ring mounting hole 9 is provided at the left end of the clamping sleeve 1. The lifting ring 2 is installed in the lifting ring mounting hole 9. The setting of the lifting ring mounting hole 9 makes the connection between the lifting ring 2 and the clamping sleeve 1 more convenient, and the operation during lifting is also convenient. A first opening 7 is provided at the center of the side wall of the clamping sleeve 1. An eccentric clamp 3 is installed at the first opening 7. The existence of the first opening 7 facilitates the eccentric clamp 3 to extend into the interior of the clamping sleeve 1 from the first opening 7. The eccentric clamp 3 is an inverted V-shaped structure, which is convenient for use. A pin shaft mounting hole 10 is provided on the eccentric clamp 3. The corners of the eccentric clamp 3 are chamfered to remove burrs, which plays a certain protective role when the eccentric clamp 3 contacts the keyway of the motor shaft extension 6. The two ends of the eccentric clamp 3 are respectively provided with a first fixed block 11 and a second fixed block 12. The first fixed block 11 and the second fixed block 12 are respectively provided with a first through hole 13 and a second through hole 14 corresponding to the pin mounting hole 10. A torsion spring 15 is provided between the eccentric clamp 3 and the second fixed block 12. The presence of the torsion spring 15 facilitates the counterclockwise rotation of the eccentric clamp 3 through the counterclockwise force of the torsion spring 15. The pin 16 passes through the first through hole 13, the pin mounting hole 10 and the second through hole 14 in sequence to fix the eccentric clamp 3 to the clamping sleeve 1. The pin 16 makes the connection between the eccentric clamp 3 and the clamping sleeve 1 more stable. When the eccentric clamp 3 is working, the eccentric clamp 3 enters the clamping inner hole 5 along the first opening 7 and contacts the keyway of the motor shaft extension 6. At this time, the eccentric clamp 3 rotates counterclockwise due to the counterclockwise force of the torsion spring 15, so that the radial distance between the eccentric clamp 3 and the motor shaft extension 6 is reduced, and the keyway of the motor shaft extension 6 is finally clamped. The right end side wall of the clamping sleeve 1 is provided with a stop 8, and the stop 8 is used to set a spring 4. One end of the spring 4 is sleeved on the stop 8, and the other end of the spring 4 is sleeved on the outside of the motor shaft extension 6. The spring 4 can provide a pre-tightening force to the clamping sleeve 1 to make the clamping more reliable.

[0022] The working process of this utility model is as follows:

[0023] The lifting ring 2 is installed in the lifting ring mounting hole 9 and fixedly connected to the clamping sleeve 1, and the motor shaft extension end 6 is horizontally clamped. The eccentric clamping block 3 enters the clamping inner hole 5 along the first opening 7 and contacts the keyway of the motor shaft extension end 6. At this time, the eccentric clamping block 3 rotates counterclockwise due to the counterclockwise force of the torsion spring 15, so that the radial distance between the eccentric clamping block 3 and the motor shaft extension end 6 is reduced, and the keyway of the motor shaft extension end 6 is finally clamped. The spring 4 also gives the clamping sleeve 1 another pre-tightening force to make the clamping more reliable;

[0024] When the lifting tool is withdrawn, just press the eccentric clamp 3.

[0025] The above describes in detail the implementation methods of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation methods. The implementation methods can still be changed within the knowledge of ordinary technicians in this field. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Small motor shaft head vertical lifting device, characterized by: It comprises a clamping sleeve (1), a lifting ring (2), an eccentric clamping block (3) and a spring (4); The clamping sleeve (1) is a horizontally placed cylindrical sleeve structure, and a clamping inner hole (5) is provided in the clamping sleeve (1), and the clamping inner hole (5) is used for the motor shaft extension end (6) to extend into; a hanging ring (2) is provided at the left end of the clamping sleeve (1); a first opening (7) is provided at the center of the side wall of the clamping sleeve (1), and an eccentric clamping block (3) is installed at the first opening (7); a stop (8) is provided on the right end side wall of the clamping sleeve (1), and the stop (8) is used to set a spring (4), one end of the spring (4) is sleeved on the stop (8), and the other end of the spring (4) is sleeved on the outside of the motor shaft extension end (6).

2. The small motor shaft head vertical hanger according to claim 1, characterized in that: The left end of the clamping sleeve (1) is provided with a lifting ring mounting hole (9), and the lifting ring (2) is mounted in the lifting ring mounting hole (9).

3. The small motor shaft head vertical hanger according to claim 1, characterized in that: The eccentric clamping block (3) is an inverted V-shaped structure, and a pin shaft mounting hole (10) is provided on the eccentric clamping block (3).

4. The small motor shaft head vertical hanger according to claim 3, characterized in that: The corners of the eccentric clamping block (3) are all chamfered.

5. The small motor shaft head vertical hanger according to claim 4, characterized in that: The eccentric clamping block (3) is provided with a first fixing block (11) and a second fixing block (12) at both ends, and the first fixing block (11) and the second fixing block (12) are respectively provided with a first through hole (13) and a second through hole (14) corresponding to the pin shaft mounting hole (10). A torsion spring (15) is provided between the eccentric clamping block (3) and the second fixing block (12), and the pin shaft (16) passes through the first through hole (13), the pin shaft mounting hole (10) and the second through hole (14) in sequence to fix the eccentric clamping block (3) and the clamping sleeve (1).

6. The small motor shaft head vertical hanger according to claim 5, characterized in that: When the eccentric clamping block (3) is in operation, the eccentric clamping block (3) enters the clamping inner hole (5) along the first opening (7) and contacts the keyway of the motor shaft extension end (6).

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