CN219327744U

CN219327744U - Flexible coupling

Info

Publication number: CN219327744U
Application number: CN202320306947.XU
Authority: CN
Inventors: 邓定宇; 朱平; 包其权
Original assignee: Mouxing Technology Jiangsu Co ltd
Current assignee: Mouxing Technology Jiangsu Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-11
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses a flexible coupling which comprises a rotor hollow shaft and a torque output shaft, wherein the torque output shaft is spliced in the rotor hollow shaft through a stable component, a second gap is formed at the bottom end of the rotor hollow shaft, a fixing piece is spliced in the second gap, an elastic piece is sleeved on the circumferential outer wall of the fixing piece, one end of the fixing piece is fixedly connected with one side of the stable component, the fixing piece and the elastic piece are not limited in structure, the stable component comprises a spherical groove, a ball head and a connecting ring, the ball head is arranged at the bottom end of the torque output shaft, the connecting ring is in interference connection with the circumference of the ball head, a mounting groove is formed in the circumferential outer wall of the connecting ring, and the mounting groove is fixedly connected with the fixing piece. The utility model ensures that the motor works more stably at high speed or high torque output, and axial and radial vibration and noise are greatly reduced, thereby improving the running smoothness and the service life of the motor, and avoiding the mutual transmission and mutual excitation of the vibration of the rotor hollow shaft and the torque output shaft.

Description

Flexible coupling

Technical Field

The utility model relates to the technical field of couplings, in particular to a flexible coupling.

Background

With the progress of the times, people have higher and higher requirements on the environment, and the improvement of the noise in the vehicle can particularly reflect the value of the vehicle to people. Meanwhile, as the degree of automation of automobiles is higher and higher, the number of vehicle-mounted motors is more and more, and the number of motors reaches 300, so that the noise of the motors and a transmission system thereof is particularly important. The main noise sources of the automation system are the motor, and the transmission noise excited by the motor output.

The existing vehicle-mounted motor mostly adopts a hollow shaft motor, and when the rotor hollow shaft in the traditional hollow shaft motor is connected with a torque output shaft, errors exist after the size chains of the transmission units are overlapped, so that the transmission is unstable, the service life of the transmission is relatively short, and therefore, a flexible coupling is needed.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a flexible coupling.

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

the utility model provides a flexible coupling, includes rotor hollow shaft and moment of torsion output shaft, the moment of torsion output shaft is pegged graft in the rotor hollow shaft through steady subassembly, and the bottom of rotor hollow shaft is opened there is the second clearance, peg graft in the second clearance has the mounting, and the mounting circumference outer wall has cup jointed the elastic component, and one end of mounting and one side fixed connection of steady subassembly, the structure of mounting and elastic component is not limited.

As still further aspects of the utility model: the stable component comprises a spherical groove, a ball head and a connecting ring, wherein the ball head is arranged at the bottom end of the torque output shaft, and the connecting ring is in interference connection with the circumference of the ball head.

As still further aspects of the utility model: the circumference outer wall of the connecting ring is provided with a mounting groove which is fixedly connected with the fixing piece, and the spherical groove is formed on one side of the rotor hollow shaft, which is close to the ball head.

As still further aspects of the utility model: the spherical groove is mutually attached to the ball head.

As still further aspects of the utility model: a first interval is reserved between the connecting ring and the hollow rotor shaft.

As still further aspects of the utility model: a third gap is arranged between the ball head and the ball-shaped groove.

As still further aspects of the utility model: the diameter of the ball head is smaller than that of the ball groove.

Compared with the prior art, the utility model provides a flexible coupling which comprises the following components

The beneficial effects are that:

1. this flexible coupling has promoted the stability of moment of torsion transmission through interference connection between go-between and the bulb, and the setting of bulb has played the effect of transmission axial force, set up the elastic component in the mounting, the radial deviation of compensation has been played, thereby, make the motor work more steady when high-speed or big moment of torsion output, axial and radial vibration and noise reduce by a wide margin, thereby improve motor operation ride comfort and life, and avoided rotor hollow shaft and moment of torsion output shaft's vibration to transmit each other and mutual excitation, flexible connection between bulb and the ball-type groove is used for eliminating the error after the superposition of accurate transmission unit size chain, make the transmission more steady, the life-span is longer.

2. This flexible coupling, through the setting of first clearance, effectively played the effect that the cooperation bulb was used for compensating the angle deviation, and make the torque output shaft can slightly rotate in the rotor hollow shaft through the third clearance to realize flexible connection between torque output shaft and the rotor hollow shaft, improve torque output's security.

The device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, and the device has a simple structure and is convenient to operate.

Drawings

Fig. 1 is a schematic front view of a flexible coupling according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a flexible coupling according to the present utility model;

fig. 3 is a schematic view of a third gap in a flexible coupling according to the present utility model.

In the figure: 1. a rotor hollow shaft; 2. a fixing member; 3. a torque output shaft; 4. a first gap; 5. an elastic member; 6. a spherical groove; 7. ball head; 8. a second gap; 9. a connecting ring; 10. and a third gap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

1-3, including rotor hollow shaft 1 and moment of torsion output shaft 3, moment of torsion output shaft 3 is pegged graft in rotor hollow shaft 1 through steady subassembly, and the bottom of rotor hollow shaft 1 is opened there is second clearance 8, peg graft in the second clearance 8 and have mounting 2, and mounting 2 circumference outer wall cup joints elastic component 5, one end of mounting 2 and one side fixed connection of steady subassembly, and the structure of mounting 2 is unrestricted, preferably screw or fixed pin, the structure of elastic component 5 is also unrestricted, preferably spring and rubber circle.

In order to avoid mutual transmission and mutual excitation of vibration of the rotor hollow shaft 1 and the torque output shaft 3, as shown in fig. 2, the stable component comprises a spherical groove 6, a ball head 7 and a connecting ring 9, wherein the ball head 7 is arranged at the bottom end of the torque output shaft 3, the connecting ring 9 is connected to the circumference of the ball head 7 in an interference manner, the circumferential outer wall of the connecting ring 9 is provided with a mounting groove, the mounting groove is fixedly connected with the fixing piece 2, the spherical groove 6 is arranged at one side of the rotor hollow shaft 1 close to the ball head 7, and the spherical groove 6 is mutually attached to the ball head 7;

a first interval 4 is reserved between the connecting ring 9 and the hollow rotor shaft 1; through the arrangement of the first gap 4, the function of matching the ball head 7 for compensating the angle deviation is effectively achieved;

the connecting ring 9 and the ball head 7 are connected through interference, the stability of torque transmission is promoted, the ball head 7 is arranged, the function of transmitting axial force is achieved, the elastic piece 5 is arranged in the fixing piece 2, radial deviation is compensated, therefore, the motor works more stably at high speed or high torque output, axial and radial vibration and noise are greatly reduced, the running smoothness and the service life of the motor are improved, the mutual transmission and mutual excitation of the vibration of the rotor hollow shaft 1 and the torque output shaft 3 are avoided, the flexible connection between the ball head 7 and the ball groove 6 is used for eliminating errors after the size chain superposition of a precise transmission unit, the transmission is more stable, and the service life is longer.

Example 2

In order to promote the safe movement of the torque output shaft 3 in the rotor hollow shaft 1, as shown in fig. 3, a third gap 10 is arranged between the ball head 7 and the spherical groove 6, and the diameter of the ball head 7 is smaller than that of the spherical groove 6; the torque output shaft 3 can slightly rotate in the rotor hollow shaft 1 through the third gap 10, so that flexible connection between the torque output shaft 3 and the rotor hollow shaft 1 is realized, and the safety of torque output is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a flexible coupling, includes rotor hollow shaft (1) and moment of torsion output shaft (3), its characterized in that, moment of torsion output shaft (3) are pegged graft in rotor hollow shaft (1) through steady subassembly, and open the bottom of rotor hollow shaft (1) has second clearance (8), peg graft in second clearance (8) have mounting (2), and mounting (2) circumference outer wall has cup jointed elastic component (5), one end of mounting (2) and one side fixed connection of steady subassembly, the structure of mounting (2) and elastic component (5) is not limited.

2. A flexible coupling according to claim 1, characterized in that the stationary assembly comprises a spherical groove (6), a ball head (7) and a connecting ring (9), the ball head (7) is arranged at the bottom end of the torque output shaft (3), and the connecting ring (9) is connected to the circumference of the ball head (7) in an interference manner.

3. A flexible coupling according to claim 2, characterized in that the circumferential outer wall of the connecting ring (9) is provided with a mounting groove which is fixedly connected with the fixing member (2), and the spherical groove (6) is provided on one side of the hollow rotor shaft (1) close to the ball head (7).

4. A flexible coupling according to claim 2, characterized in that the ball grooves (6) are mutually conformed to the balls (7).

5. A flexible coupling according to claim 2, characterized in that a first gap (4) is left between the connecting ring (9) and the hollow rotor shaft (1).

6. A flexible coupling according to claim 2, characterized in that a third gap (10) is provided between the ball head (7) and the ball-type groove (6).

7. A flexible coupling according to claim 6, characterized in that the diameter of the ball head (7) is smaller than the diameter of the ball groove (6).