CN210510132U

CN210510132U - Torsion-limiting shock absorber

Info

Publication number: CN210510132U
Application number: CN201921086047.9U
Authority: CN
Inventors: 杨明; 丁衡俊
Original assignee: Cnc Driveline Technology Co ltd
Current assignee: Cnc Driveline Technology Co ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-12
Anticipated expiration: 2029-07-10

Abstract

The utility model relates to the technical field of vehicles, a limit is turned round shock absorber is disclosed, including centre gripping subassembly and the driving-disc of centre gripping on the centre gripping subassembly, the initiative end is connected respectively with the centre gripping subassembly to lug on the driving-disc, and the moment of torsion of transmission is too big in the twinkling of an eye when the initiative end, and the driving-disc will carry out relative rotation on the centre gripping subassembly, will become sliding friction by the static friction between driving-disc and the centre gripping subassembly, thereby avoids the excessive increase of moment of torsion to lead to the driving-disc to damage, the simple structure of shock absorber, longe-.

Description

Torsion-limiting shock absorber

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a limit is turned round shock absorber.

Background

With the development of economy and the improvement of living standard of people, automobiles enter families of common people and become necessary tools for people to go out, and the holding capacity of automobiles in China is increasing at an incredible speed. The durability of the automobile is an important index considered when people buy the automobile, so that the power system of the automobile is required to have good quality and high reliability.

The transmission system is a system for transmitting torque, a damper is generally arranged between two ends for outputting torque and receiving torque, the damper can buffer or filter vibration of the transmission system, so that the transmission system can smoothly transmit the torque, but the damper at the present stage has no torque-limiting protection mechanism, and when the torque transmitted by the damper is greater than the limit value of the damper, the structure of the damper is damaged, so that the service life of the transmission system is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a structure reliable, can restrict the shock absorber of transmission moment of torsion size.

The utility model provides a technical scheme that its technical problem adopted does:

the utility model provides a limit for torsion shock absorber, includes active end and passive end, is equipped with the centre gripping subassembly on the passive end, and the centre gripping has the driving-disc on the centre gripping subassembly, and centre gripping subassembly and driving-disc are coaxial, and centre gripping subassembly and driving-disc all can be rotatory around the axle center, and the round side of driving-disc is equipped with a plurality of evenly distributed's lug, and the lug is connected with the active end, and the driving-disc can rotate on the centre gripping subassembly.

Has the advantages that: this shock absorber during operation, the lug is connected initiative end and passive end respectively with the centre gripping subassembly, the initiative end passes through the lug and transmits the moment of torsion to the driving-disc in proper order, centre gripping subassembly and passive serve, the moment of torsion of transmitting in the twinkling of an eye when the initiative end is too big, the driving-disc will carry out relative rotation on the centre gripping subassembly, will become sliding friction by static friction between driving-disc and the centre gripping subassembly, play the effect of restriction transmission moment of torsion size, thereby avoid the too big driving-disc damage that leads to of the too big moment of torsion of transmission, the simple structure of shock absorber, high reliability, long service life.

As an improvement of the above technique, a friction material layer is arranged between the clamping component and the driving disk. The friction material layer stabilizes the limit of friction between the clamp assembly and the drive disk.

As an improvement of the above technology, the driving plate is disc-shaped and has elasticity, so that positive pressure is generated between the driving plate and the clamping component, and the static friction between the driving plate and the clamping component is at a proper value.

As an improvement of the technology, the clamping assembly comprises a left pressing plate, a connecting piece and a right pressing plate, the left pressing plate and the right pressing plate are fixedly connected through the connecting piece, and the driving disc is arranged between the left pressing plate and the right pressing plate. The clamping assembly is simple in structure and high in reliability.

As the improvement of the above technology, left side clamp plate and right clamp plate all are the dish form, and left side clamp plate and right clamp plate are connected each other dorsad, and the connecting piece is located the centre of left clamp plate and right clamp plate for the clearance size that holds the driving-disc between left clamp plate and the right clamp plate is stable.

As the improvement of the technology, the middle of the driving disc is provided with a mounting hole, the driving disc is sleeved between the left pressing plate and the right pressing plate through the mounting hole, and the lug is arranged on the outer circle side surface of the driving disc. When the driving disc and the clamping assembly rotate relatively, the relative positions of the driving disc and the clamping assembly are not changed, and the shock absorber can still keep the original transmission function.

As the improvement of the technology, the spring clip further comprises a plurality of arc-shaped spring groups and a plurality of sliding grooves, the number of the arc-shaped spring groups is equal to that of the sliding grooves, the sliding grooves are distributed on the side face of the driving end along the radial direction, the arc-shaped spring groups are arranged in the sliding grooves, the lugs can extend into the gap between the two sliding grooves, and the lugs can be abutted against the ends of the arc-shaped spring groups. The arc spring group can be compressed, and the effect of vibration reduction is played.

As the improvement of the technology, each arc-shaped spring group comprises two springs which are sleeved inside and outside, and the elasticity of the two springs is stronger, so that the torque transmitted by the shock absorber is larger.

As an improvement of the technology, the shaft hole is arranged at the center of the middle shaft of the driven end, and the plurality of riveting holes are formed in the side wall of the driving end. The two ends of the output torque and the two ends of the received torque are respectively connected with the shock absorber through riveting holes and shaft holes.

Drawings

The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein:

FIG. 1 is a schematic structural view of a shock absorber according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a shock absorber in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural view of a clamping assembly and a driving plate according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a clamping assembly and a drive plate in accordance with an embodiment of the present invention;

fig. 5 is a partially enlarged view of a portion a in fig. 4.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, the utility model discloses a torque-limiting damper, including driving end 40 and passive end 50, be equipped with clamping component 10 on the passive end 50, the last centre gripping of clamping component 10 has driving-disc 20, clamping component 10 and driving-disc 20 are coaxial, clamping component 10 and driving-disc 20 all can be rotatory round the axle center, the round side of driving-disc 20 is equipped with a plurality of evenly distributed's lug 30, lug 30 is connected with driving end 40, driving-disc 20 can rotate on clamping component 10. In use, the lug 30 is connected with the driving end 40, and the clamping assembly 10 is fixedly connected with the driven end 50.

When the driving end 40 rotates, the driving end 40 transmits torque to the driving disc 20, the clamping assembly 10 and the driven end 50 in sequence through the lug 30, when the torque transmitted by the driving end 40 instantaneously exceeds a limit value, the driving disc 20 rotates on the clamping assembly 10 relatively, namely the angular velocities of the driving disc 20 and the clamping assembly 10 are unequal, static friction between the driving disc 20 and the clamping assembly 10 is changed into sliding friction, and damage to the driving disc 20 caused by the fact that the torque is too large is avoided. The clamping assembly 10 and the driving disc 20 play a role in transmitting torque, and have a function of unloading torque, namely a function of torque limiting protection, so that the clamping assembly 10 and the driving disc 20 are prevented from being failed due to overlarge torque, and the shock absorber is simple in structure, high in reliability and long in service life.

The shaft hole 90 is arranged at the center of the middle shaft of the passive end 50, and the plurality of riveting holes 100 are arranged on the side wall of the active end 40. The two ends of the output torque and the two ends of the received torque are respectively connected with the shock absorber through the riveting holes 100 and the shaft holes 90, and the arrangement of the riveting holes 100 and the shaft holes 90 enables the connection of the shock absorber with the output torque end and the received torque end to be quicker and simpler.

With further reference to fig. 5, a friction material layer 60 is disposed between the clamping assembly 10 and the driving disc 20, the friction material layer 60 is adhered to the clamping assembly 10/the driving disc 20, and the friction material layer 60 keeps a static friction limit value between the clamping assembly 10 and the driving disc 20 at a specific value all the time, so that after the driving disc 20 rotates on the clamping assembly 10 for multiple times, the static friction limit value is not attenuated, and the reliability of the clamping assembly 10 and the driving disc 20 is improved.

The driving plate 20 is disc-shaped and has a certain elasticity, so that when the driving plate 20 and the clamping assembly 10 are assembled, the driving plate 20 has a certain pre-deformation, the driving plate 20 is clamped by the clamping assembly 10, and a positive pressure is generated between the driving plate 20 and the clamping assembly 10, so that the static friction between the driving plate 20 and the clamping assembly 10 is at a proper value.

The clamping assembly 10 comprises a left pressing plate 11, a connecting piece 12 and a right pressing plate 13, wherein the left pressing plate 11 and the right pressing plate 13 are fixedly connected through the connecting piece 12 and clamp the driving disc 20 in the middle. Left side clamp plate 11 and right clamp plate 13 all are the dish form, and left side clamp plate 11 and right clamp plate 13 are connected each other dorsad, are also that the bellied one side of left side clamp plate 11 and the bellied one side of right clamp plate 13 are each other butt for have the clearance that holds driving-disc 20 between left side clamp plate 11 and the right clamp plate 13. Further, the connecting piece 12 is arranged between the left pressing plate 11 and the right pressing plate 13, through holes are formed in the axle centers of the left pressing plate 11 and the right pressing plate 13, the connecting piece 12 is a bolt and a nut, the connecting pieces 12 are eighteen in total, the connecting pieces 12 are distributed on the side face, close to the through holes, of the left pressing plate 11/the right pressing plate 13, the distance from each connecting piece 12 to the axle center of the through holes is equal, the connecting piece 12 and the area, abutted to the left pressing plate 11 and the right pressing plate 13, form a connecting part, and the connecting part is cylindrical. The middle of the driving disk 20 is provided with a mounting hole, and the driving disk 20 is sleeved on the connecting part between the left pressing plate 11 and the right pressing plate 13 through the mounting hole.

The driving disc 20 is disc-shaped, and the driving disc 20 and the connecting part are coaxial, so that when the driving disc 20 and the clamping component 10 rotate relatively, the relative positions of the driving disc 20 and the clamping component 10 are not changed, and the driving disc 20 and the clamping component 10 can still keep the original transmission function. The lugs 30 are arranged on the outer circle side surface of the driving disk 20, two lugs 30 are arranged, and each lug 30 is connected with the driving end 40.

Further, the shock absorber further comprises a plurality of arc-shaped spring groups 70 and a plurality of sliding grooves 80, the number of the arc-shaped spring groups 70 is equal to that of the sliding grooves 80, the sliding grooves 80 are radially distributed on the side surface of the driving end 40, the arc-shaped spring groups 70 are arranged in the sliding grooves 80, the lugs 30 can extend into a gap between the two sliding grooves 80, the lugs 30 can be abutted against the ends of the arc-shaped spring groups 70, and the clamping assembly 10 is fixedly connected with the driven end 50.

The number of the lugs 30 is two, so the number of the arc spring sets 70 of this embodiment is also two, when the driving end 40 rotates, the ends of the arc spring sets 70 abut against the lugs 30, the arc spring sets 70 are compressed and drive the driving disc 20 to rotate through the lugs 30, and further drive the clamping assembly 10, and finally drive the driven end 50 to rotate. The arc spring assembly 70 can be compressed to play a role of buffering, so that the shock absorber has a shock absorption function. Each arc spring group 70 comprises two springs which are sleeved inside and outside, and the elasticity of the two springs is stronger, so that the torque transmitted by the shock absorber is larger.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. A torsion-limiting shock absorber is characterized in that: including driving end (40) and passive end (50), be equipped with centre gripping subassembly (10) on passive end (50), the centre gripping has driving-disc (20) on centre gripping subassembly (10), centre gripping subassembly (10) and driving-disc (20) are coaxial, centre gripping subassembly (10) and driving-disc (20) all can be rotatory around the axle center, the excircle side of driving-disc (20) is equipped with a plurality of evenly distributed's lug (30), lug (30) are connected with driving end (40), driving-disc (20) can be gone up in centre gripping subassembly (10) and rotate.

2. A torque limiting damper as set forth in claim 1 wherein: a friction material layer (60) is arranged between the clamping assembly (10) and the driving disc (20).

3. A torque limiting damper as set forth in claim 1 wherein: the driving disc (20) is disc-shaped and elastic.

4. A torque limiting damper as set forth in claim 1 wherein: the clamping assembly (10) comprises a left pressing plate (11), a connecting piece (12) and a right pressing plate (13), the left pressing plate (11) and the right pressing plate (13) are fixedly connected through the connecting piece (12), and a driving disc (20) is arranged between the left pressing plate (11) and the right pressing plate (13).

5. A torque limiting damper as set forth in claim 4 wherein: left side clamp plate (11) and right clamp plate (13) all are the dish form, and left side clamp plate (11) and right clamp plate (13) are connected each other dorsad, and the centre of left side clamp plate (11) and right clamp plate (13) is located in connecting piece (12).

6. A torque limiting damper as set forth in claim 5 wherein: the middle of the driving disc (20) is provided with a mounting hole, the driving disc (20) is sleeved between the left pressing plate (11) and the right pressing plate (13) through the mounting hole, and the convex lug (30) is arranged on the outer circle side surface of the driving disc (20).

7. A torque limiting damper as set forth in claim 1 wherein: the spring assembly structure is characterized by further comprising a plurality of arc-shaped spring groups (70) and a plurality of sliding grooves (80), the number of the arc-shaped spring groups (70) is equal to that of the sliding grooves (80), the sliding grooves (80) are distributed on the side face of the driving end (40) along the radial direction, the arc-shaped spring groups (70) are arranged in the sliding grooves (80), the lugs (30) can extend into a gap between the two sliding grooves (80), and the lugs (30) can be abutted to the end heads of the arc-shaped spring groups (70).

8. A torque limiting damper as set forth in claim 7 wherein: each arc-shaped spring group (70) comprises two springs which are sleeved inside and outside.

9. A torque limiting damper as set forth in claim 1 wherein: the middle shaft center of the passive end (50) is provided with a shaft hole (90), and the side wall of the driving end (40) is provided with a plurality of riveting holes (100).