CN210839202U

CN210839202U - Motor shaft connector

Info

Publication number: CN210839202U
Application number: CN201921874043.7U
Authority: CN
Inventors: 章周欢; 吴明森
Original assignee: Roshow New Energy Technology Co ltd
Current assignee: Roshow New Energy Technology Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-06-23
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses a motor shaft connector. The tension device comprises an inner expansion shaft and a tension screw rod, wherein a through hole is formed in the middle of the inner expansion shaft, the tension screw rod is arranged in the through hole of the inner expansion shaft, the inner expansion shaft comprises a shaft body and a shaft head, the tension screw rod comprises a long screw rod and a screw rod head, the screw rod head is arranged in the shaft head, one end of the long screw rod penetrates through the shaft body to be connected with the screw rod head in the shaft head, and a tension nut is arranged at the other end of the long screw rod. The utility model has the advantages that: the shaft head of the inner expanding shaft can be directly connected with the motor shaft in an expanding manner, and can also be directly loosened to facilitate the taking-off of the motor shaft, so that the disassembly and the installation of the motor shaft are facilitated, the operation is convenient and simple, the practicability is high, and the cost is low.

Description

Motor shaft connector

Technical Field

The utility model belongs to the technical field of the relevant technique of motor test and specifically relates to indicate a motor shaft connector.

Background

An electric machine (commonly referred to as a "motor") refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. The motor is represented by a letter M (old standard is represented by a letter D) in a circuit, the motor mainly plays a role of generating driving torque and serving as a power source of electrical appliances or various machines, the generator is represented by a letter G in a circuit, and the generator mainly plays a role of converting mechanical energy into electric energy. When the performance of the existing motor is tested, the performance of the motor cannot be tested by directly connecting a motor shaft.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome and to have foretell not enough among the prior art, provide a direct connection motor shaft and motor shaft connector easy to assemble dismantlement.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a motor shaft connector comprises an inner expansion shaft and a tension screw, wherein a through hole is formed in the middle of the inner expansion shaft, the tension screw is arranged in the through hole of the inner expansion shaft, the inner expansion shaft comprises a shaft body and a shaft head, the tension screw comprises a long screw and a screw head, the screw head is arranged in the shaft head, one end of the long screw penetrates through the shaft body to be connected with the screw head in the shaft head, and a tension nut is arranged at the other end of the long screw.

When the motor performance testing device is used, only the motor shaft needs to be installed on the shaft head of the inner expansion shaft, and the tensioning screw moves towards the shaft body direction of the inner expansion shaft by screwing the tensioning nut, so that the shaft head of the inner expansion shaft is extruded, the shaft head of the inner expansion shaft is directly connected with the motor shaft in a tensioning manner, and the performance testing of the motor can be carried out; after the test is finished, only the knob tensioning nut is required to loosen the tensioning screw rod, so that the shaft head of the inner tensioning shaft and the motor shaft can be directly loosened to facilitate the removal of the motor shaft, and the next motor connection test is carried out. The motor shaft is convenient to disassemble and install due to the design structure, the operation is convenient and simple, the practicability is high, and the cost is low.

Preferably, the shaft body and the shaft head are both in a circular tube shape, a step is arranged at the joint of the shaft body and the shaft head, a flange matched with the step is arranged at one end, away from the shaft body, of the shaft head, a plurality of open grooves are uniformly distributed on the outer side surface of the shaft head, round holes are formed in the bottoms of the open grooves and communicated with the round holes, the open ends of the open grooves are arranged at the flange, and the inner expanding shaft is integrally formed. Through the design of the steps and the flanges, the motor shaft can be limited between the steps and the flanges, so that the motor shaft connector and the motor shaft are prevented from being worn and damaged due to relative displacement of the motor shaft on the inner expanding shaft; through the design of the round hole, the tension stress of the shaft head can be increased, and the shaft head is prevented from being damaged during tension.

As preferred, the through-hole in and be located the axis body and keep away from the one end of spindle nose and be equipped with the annular, the annular in be equipped with the cushion, the cushion install in the long screw rod outside of tight screw rod that rises, the shape of screw head is the round platform form, the spindle nose is equipped with the inside round platform hole that is equipped with of turn-ups one end, round platform hole and through-hole intercommunication, the screw head arrange the round platform downthehole in, the long screw rod arrange the through-hole in, tight screw rod that rises be integrated into one piece. Through the design of the ring groove and the cushion block, the tensioning screw rod can be limited in the through hole, and the situation that the use of the whole motor shaft connector is influenced due to the interference of the tensioning screw rod in the through hole is prevented; and the round platform hole and the screw head are matched for use, so that the screw head of the tensioning screw rod can conveniently move in the round platform hole, and the resetting of the tensioning screw rod is convenient.

Preferably, the position of the long screw rod where the shaft head is arranged is provided with an anti-rotation pin, the four open grooves are uniformly distributed on the outer side surface of the shaft head in a cross shape, and two ends of the anti-rotation pin penetrate through the two corresponding open grooves and then are arranged on the outer side of the shaft head. Through the design of anti-rotating pin for the motor shaft can not take place corresponding displacement between the motor shaft and the internal expanding shaft after the shaft head of internal expanding shaft rises to be connected, effectually prevents that the motor shaft from skidding on the shaft head of internal expanding shaft.

Preferably, the other end of the long screw rod is arranged on the outer side of the shaft body, a gasket is arranged on the long screw rod, and the long screw rod is fixed on the outer side of the shaft body through the matching of the tensioning nut and the gasket and is in contact with a cushion block in the shaft body. Through the cooperation use of packing ring and cushion, prevent that the tight nut and the internal expanding axle direct contact of rising from causing wearing and tearing or damage to the internal expanding axle.

The utility model has the advantages that: the shaft head of the inner expanding shaft can be directly connected with the motor shaft in an expanding manner, and can also be directly loosened to facilitate the taking-off of the motor shaft, so that the disassembly and the installation of the motor shaft are facilitated, the operation is convenient and simple, the practicability is high, and the cost is low.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic cross-sectional structure of fig. 1.

In the figure: 1. the tension device comprises a tension nut, 2. an inner tension shaft, 3. a tension screw, 4. an anti-rotation pin, 5. a circular truncated cone hole, 6. a gasket, 7. a step, 8. a circular hole, 9. an open slot, 10. a flanging, 11. a screw head, 12. a cushion block, 13. an annular groove, 14. a shaft body, 15. a long screw, 16. a through hole and 17. a shaft head.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1, 2 and 3, a motor shaft connector includes an inner expanding shaft 2 and a tension screw 3, a through hole 16 is formed in the middle of the inner expanding shaft 2, the tension screw 3 is disposed in the through hole 16 of the inner expanding shaft 2, the inner expanding shaft 2 includes a shaft body 14 and a shaft head 17, the tension screw 3 includes a long screw 15 and a screw head 11, the screw head 11 is disposed in the shaft head 17, one end of the long screw 15 penetrates through the shaft body 14 to be connected with the screw head 11 in the shaft head 17, and a tension nut 1 is disposed at the other end of the long screw 15. The shape of axis body 14 and the shape of spindle nose 17 all are the pipe form, and the junction of axis body 14 and spindle nose 17 is equipped with step 7, and spindle nose 17 is kept away from one of axis body 14 and is served and be equipped with turn-ups 10 with step 7 matched with, and evenly distributed has a plurality of open slots 9 on the lateral surface of spindle nose 17, and the bottom of open slot 9 is equipped with round hole 8, and open slot 9 and round hole 8 intercommunication, turn-ups 10 department is arranged in to the open end of open slot 9, and internal expanding axle 2 is integrated into one piece. An annular groove 13 is formed in one end, away from the shaft head 17, of the shaft body 14 in the through hole 16, a cushion block 12 is arranged in the annular groove 13, the cushion block 12 is installed on the outer side of a long screw 15 of the tensioning screw 3, the screw head 11 is in a circular truncated cone shape, a circular truncated cone hole 5 is formed in one end, provided with the turned edge 10, of the shaft head 17, the circular truncated cone hole 5 is communicated with the through hole 16, the screw head 11 is arranged in the circular truncated cone hole 5, the long screw 15 is arranged in the through hole 16, and the tensioning screw 3 is. The long screw 15 is provided with an anti-rotation pin 4 at the position where the shaft head 17 is arranged, four open grooves 9 are uniformly distributed on the outer side surface of the shaft head 17 in a cross shape, and two ends of the anti-rotation pin 4 penetrate through the two corresponding upper and lower open grooves 9 and then are arranged on the outer side of the shaft head 17. The long screw 15 is provided with an anti-rotation pin 4 at the position where the shaft head 17 is arranged, four open grooves 9 are uniformly distributed on the outer side surface of the shaft head 17 in a cross shape, and two ends of the anti-rotation pin 4 penetrate through the two corresponding upper and lower open grooves 9 and then are arranged on the outer side of the shaft head 17. The other end of the long screw rod 15 is arranged on the outer side of the shaft body 14, a gasket 6 is arranged on the long screw rod 15, and the long screw rod 15 is fixed on the outer side of the shaft body 14 through the matching of the tensioning nut 1 and the gasket 6 and is in contact with the cushion block 12 in the shaft body 14.

When the motor performance testing device is used, a motor shaft is only required to be installed on a shaft head 17 of an inner expansion shaft 2, the motor shaft is limited between a step 7 and a flanging 10, a tension screw 3 moves towards a shaft body 14 of the inner expansion shaft 2 by screwing a tension nut 1, and the shaft head 17 of the inner expansion shaft 2 moves towards the shaft body 14 in a circular truncated cone hole 5, so that the shaft head 17 of the inner expansion shaft 2 is extruded; after the test is finished, only the knob tensioning nut 1 is required to loosen the tensioning screw 3, the shaft head 17 of the inner tensioning shaft 2 moves in the round platform hole 5 in the opposite direction along the shaft body 14 of the inner tensioning shaft 2, so that the shaft head 17 is reset, and thus the shaft head 17 of the inner tensioning shaft 2 and the motor shaft can be directly loosened to facilitate the removal of the motor shaft for the next motor connection test.

Claims

1. The motor shaft connector is characterized by comprising an inner expansion shaft (2) and an expansion screw (3), wherein a through hole (16) is formed in the middle of the inner expansion shaft (2), the expansion screw (3) is arranged in the through hole (16) of the inner expansion shaft (2), the inner expansion shaft (2) comprises a shaft body (14) and a shaft head (17), the expansion screw (3) comprises a long screw (15) and a screw head (11), the screw head (11) is arranged in the shaft head (17), one end of the long screw (15) penetrates through the shaft body (14) to be connected with the screw head (11) in the shaft head (17), and an expansion nut (1) is arranged at the other end of the long screw (15).

2. The motor shaft connector as recited in claim 1, wherein the shaft body (14) and the shaft head (17) are both in a circular tube shape, a step (7) is provided at a joint of the shaft body (14) and the shaft head (17), a flange (10) matched with the step (7) is provided at one end of the shaft head (17) away from the shaft body (14), a plurality of open slots (9) are uniformly distributed on an outer side surface of the shaft head (17), a circular hole (8) is provided at a bottom of the open slot (9), the open slot (9) is communicated with the circular hole (8), an open end of the open slot (9) is disposed at the flange (10), and the inner expanding shaft (2) is integrally formed.

3. The motor shaft connector as recited in claim 2, wherein an annular groove (13) is formed in the through hole (16) and at one end of the shaft body (14) far away from the shaft head (17), a cushion block (12) is arranged in the annular groove (13), the cushion block (12) is installed on the outer side of a long screw (15) of the tension screw (3), the screw head (11) is in a circular truncated cone shape, a circular truncated cone hole (5) is formed in one end of the shaft head (17) provided with the flange (10), the circular truncated cone hole (5) is communicated with the through hole (16), the screw head (11) is arranged in the circular truncated cone hole (5), the long screw (15) is arranged in the through hole (16), and the tension screw (3) is integrally formed.

4. The motor shaft connector as claimed in claim 2 or 3, wherein the long screw (15) is provided with an anti-rotation pin (4) at a position where the shaft head (17) is located, four open slots (9) are uniformly distributed on the outer side surface of the shaft head (17) in a cross shape, and two ends of the anti-rotation pin (4) are arranged on the outer side of the shaft head (17) after passing through the two corresponding open slots (9).

5. The motor shaft connector as claimed in claim 3, wherein the other end of the long screw (15) is disposed outside the shaft body (14), a washer (6) is disposed on the long screw (15), and the long screw (15) is fixed outside the shaft body (14) by the engagement of the tension nut (1) and the washer (6) and contacts with the pad (12) inside the shaft body (14).