CN211474700U

CN211474700U - EPS motor coupling with antiskid effect

Info

Publication number: CN211474700U
Application number: CN201921912778.4U
Authority: CN
Inventors: 刘延年
Original assignee: Hebei Hengnuo Powder Metallurgy Co ltd
Current assignee: Hebei Hengnuo Powder Metallurgy Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-09-11
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses an EPS motor coupling with antiskid effect, including first shaft coupling and second shaft coupling, first shaft coupling is located second shaft coupling one side, the outer wall of first shaft coupling runs through and is provided with the motor shaft, the outer wall of second shaft coupling runs through and is provided with the worm axle, be provided with the rubber pad between first shaft coupling and the second shaft coupling, the outer wall of first shaft coupling evenly is provided with a plurality of draw-in grooves, the outer wall of second shaft coupling has cup jointed the sleeve; the utility model discloses a set up first cooperation groove, second cooperation groove, first cooperation piece, second cooperation piece, rubber pad etc. when having guaranteed transmission effect, greatly increased the area of contact surface between the shaft coupling, can effectively avoid the shaft coupling to take place the phenomenon of skidding after long-time the use, the noise that the shaft coupling collision sent when having reduced EPS motor start-up has promoted the driving quality when the good reliability, excellent in use effect.

Description

EPS motor coupling with antiskid effect

Technical Field

The utility model relates to a shaft coupling specifically is an EPS motor shaft coupling with antiskid effect.

Background

The electric power steering system is used on most automobiles nowadays, the EPS motor is controlled to rotate based on the change condition of the ECU controller according to the collected sensor torque signal and the collected angle signal, the EPS motor drives the worm wheel and worm speed reducing mechanism, and the power required by vehicle steering is provided, so that the steering performance of the vehicle is improved, and a driver can control the vehicle traveling direction more easily.

The speed reducing mechanism of the existing electric power steering system is mostly a worm gear mechanism, a motor shaft is connected with a worm of the speed reducing mechanism through a coupler containing a spline groove, when the motor runs, the spline of the coupler is inevitably collided and abraded with the spline groove, the phenomenon of slipping easily occurs after the motor shaft is used for a long time, the normal work of the electric power steering system is influenced, and the using effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an EPS motor coupling with antiskid effect to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a EPS motor coupling with antiskid effect, includes first shaft coupling and second shaft coupling, first shaft coupling is located second shaft coupling one side, the outer wall of first shaft coupling runs through and is provided with the motor shaft, the outer wall of second shaft coupling runs through and is provided with the worm axle, be provided with the rubber pad between first shaft coupling and the second shaft coupling, the outer wall of first shaft coupling evenly is provided with a plurality of draw-in grooves, the sleeve has been cup jointed to the outer wall of second shaft coupling, telescopic inner wall one end evenly is provided with a plurality of fixture blocks, the fixture block is located the draw-in groove.

As a further aspect of the present invention: first shaft coupling is close to the one end of second shaft coupling and has evenly seted up three first cooperation groove, and per two are adjacent form first cooperation piece between the first cooperation groove, the one end that the second shaft coupling is close to first shaft coupling has evenly seted up three second cooperation groove, per two are adjacent form second cooperation piece between the second cooperation groove, the other end outer wall of second shaft coupling is provided with the shrink portion.

As a further aspect of the present invention: the first matching groove is matched with the second matching block in shape, the second matching groove is matched with the first matching block in shape, and the rubber pad is located between the first matching groove, the second matching block, the second matching groove and the first matching block.

As a further aspect of the present invention: the outer wall of the contraction part is sleeved with a spring, one end, far away from the clamping block, of the inner wall of the sleeve is fixedly connected with a limiting ring, and the limiting ring is sleeved on the outer wall of the contraction part.

As a further aspect of the present invention: the clamping groove comprises an inlet and outlet portion, a rotating portion and a locking portion, and two ends of the rotating portion are respectively communicated with the inlet and outlet portion and the locking portion.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up first cooperation groove, second cooperation groove, first cooperation piece, second cooperation piece, rubber pad etc. when having guaranteed transmission effect, greatly increased the area of contact surface between the shaft coupling, can effectively avoid the shaft coupling to take place the phenomenon of skidding after long-time the use, the noise that the shaft coupling collision sent when having reduced EPS motor start-up has promoted the driving quality when the good reliability, excellent in use effect.

2. The utility model discloses a set up draw-in groove, sleeve, fixture block, spring etc. can effectively keep the clearance distance of two shaft couplings, avoid the axial force of worm gear during operation worm to the influence that the EPS motor caused, prolonged the life of motor, guaranteed the stability of EPS system.

Drawings

Fig. 1 is a schematic structural diagram of an EPS motor coupling with an anti-slip effect.

Fig. 2 is a schematic structural diagram of a coupling in an EPS motor coupling with an anti-slip effect.

Fig. 3 is a schematic structural diagram of a clamping groove in an EPS motor coupler with an anti-slip effect.

Fig. 4 is a schematic structural diagram of a sleeve in an EPS motor coupling with an anti-slip effect.

Wherein, 1, a motor shaft; 2. a worm shaft; 3. a first coupling; 31. a first mating groove; 32. a first mating block; 4. A second coupling; 41. a second mating groove; 42. a second mating block; 43. a constriction; 5. a spring; 6. a sleeve; 61. A clamping block; 62. a limiting ring; 7. a card slot; 71. an inlet and outlet section; 72. a rotating part; 73. a locking portion; 8. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, in an embodiment of the present invention, an EPS motor coupler with anti-slip effect, includes a first coupler 3 and a second coupler 4, the first coupler 3 is located on one side of the second coupler 4, an outer wall of the first coupler 3 is provided with a motor shaft 1 in a running-through manner, an outer wall of the second coupler 4 is provided with a worm shaft 2 in a running-through manner, a rubber pad 8 is provided between the first coupler 3 and the second coupler 4, an outer wall of the first coupler 3 is uniformly provided with a plurality of clamping grooves 7, an outer wall of the second coupler 4 is sleeved with a sleeve 6, an inner wall one end of the sleeve 6 is uniformly provided with a plurality of clamping blocks 61, and the clamping blocks 61 are located in the clamping grooves 7.

Three first cooperation grooves 31 have evenly been seted up to the one end that first shaft coupling 3 is close to second shaft coupling 4, form first cooperation piece 32 between per two adjacent first cooperation grooves 31, three second cooperation groove 41 has evenly been seted up to the one end that second shaft coupling 4 is close to first shaft coupling 3, form second cooperation piece 42 between per two adjacent second cooperation grooves 41, the other end outer wall of second shaft coupling 4 is provided with constriction 43.

First cooperation groove 31 and second cooperation piece 42's appearance phase-match, second cooperation groove 41 and first cooperation piece 32's appearance phase-match, rubber pad 8 is located first cooperation groove 31, second cooperation piece 42 and second cooperation groove 41, between first cooperation piece 32, rubber pad 8 drives second shaft coupling 4 when rotating at first shaft coupling 3, can avoid

first shaft coupling

3 and 4 direct bumps, make EPS system's operation more steady when having reduced the noise.

Spring 5 has been cup jointed to the outer wall of constriction 43, and the one end fixedly connected with spacing ring 62 of fixture block 61 is kept away from to 6 inner walls of sleeve, and spacing ring 62 cup joints in constriction 43 outer wall department, and the cooperation of spacing ring 62 and spring 5 can guarantee that fixture block 61 is located draw-in groove 7 all the time.

The card slot 7 includes an access portion 71, a rotation portion 72, and a locking portion 73, and both ends of the rotation portion 72 are respectively communicated with the access portion 71 and the locking portion 73.

The utility model discloses a theory of operation is:

during installation, the three first matching blocks 32 at one end of the first coupler 3 are aligned and inserted into the three second matching grooves 41 at one end of the second coupler 4, a certain gap is ensured to be reserved between the matching blocks and the matching grooves, the rubber pads 8 are inserted into the corresponding gaps, then the clamping blocks 61 at the end parts of the sleeves 6 are inserted in alignment with the inlet and outlet portions 71 of the clamping grooves 7, the sleeves 6 are rotated through the rotating portions 72, the clamping blocks 61 are rotated to the locking portions 73, when the clamping blocks 61 are inserted into the inlet and outlet portions 71, the sleeves 6 drive the limiting rings 62 to compress the springs 5, when the clamping blocks 61 are located at the locking portions 73, the clamping blocks 61 are tightly attached to the outer walls of the locking portions 73 under the action force of the springs 5, the clamping blocks 61 are prevented from being separated from the locking portions 73 when the coupler works, and meanwhile, the rubber pads 8 can be prevented from falling off from the matching grooves.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a EPS motor coupling with antiskid effect, includes first shaft coupling (3) and second shaft coupling (4), its characterized in that: first shaft coupling (3) are located second shaft coupling (4) one side, the outer wall of first shaft coupling (3) is run through and is provided with motor shaft (1), the outer wall of second shaft coupling (4) is run through and is provided with worm axle (2), be provided with rubber pad (8) between first shaft coupling (3) and second shaft coupling (4), the outer wall of first shaft coupling (3) evenly is provided with a plurality of draw-in grooves (7), sleeve (6) have been cup jointed to the outer wall of second shaft coupling (4), the inner wall one end of sleeve (6) evenly is provided with a plurality of fixture blocks (61), fixture block (61) are located draw-in groove (7).

2. An EPS motor coupling with anti-slip effect according to claim 1, characterized in that: first shaft coupling (3) are close to the one end of second shaft coupling (4) and have evenly seted up three first cooperation groove (31), and per two are adjacent form first cooperation piece (32) between first cooperation groove (31), three second cooperation groove (41) have evenly been seted up to the one end that second shaft coupling (4) are close to first shaft coupling (3), and per two are adjacent form second cooperation piece (42) between second cooperation groove (41), the other end outer wall of second shaft coupling (4) is provided with constriction portion (43).

3. An EPS motor coupling with anti-slip effect according to claim 2, characterized in that: the first matching groove (31) is matched with the second matching block (42) in shape, the second matching groove (41) is matched with the first matching block (32) in shape, and the rubber pad (8) is located between the first matching groove (31), the second matching block (42), the second matching groove (41) and the first matching block (32).

4. An EPS motor coupling with anti-slip effect according to claim 2, characterized in that: the outer wall of the contraction portion (43) is sleeved with the spring (5), one end, far away from the clamping block (61), of the inner wall of the sleeve (6) is fixedly connected with a limiting ring (62), and the limiting ring (62) is sleeved on the outer wall of the contraction portion (43).

5. An EPS motor coupling with anti-slip effect according to claim 1, characterized in that: the clamping groove (7) comprises an inlet and outlet portion (71), a rotating portion (72) and a locking portion (73), and two ends of the rotating portion (72) are respectively communicated with the inlet and outlet portion (71) and the locking portion (73).