CN214888478U - Multi-piece torque limiter - Google Patents
Multi-piece torque limiter Download PDFInfo
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- CN214888478U CN214888478U CN202120361132.2U CN202120361132U CN214888478U CN 214888478 U CN214888478 U CN 214888478U CN 202120361132 U CN202120361132 U CN 202120361132U CN 214888478 U CN214888478 U CN 214888478U
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Abstract
The utility model discloses a multi-piece torque limiter, a torque transmission plate torque transmission flanging is embedded into a shaft sleeve plate torque transmission hole to form four friction pairs with torque input, a cover plate and a spline shaft sleeve are riveted and fixed, a disc spring torque transmission flanging is embedded into the spline shaft sleeve torque transmission hole, a friction plate is arranged between a shaft sleeve plate friction pair B and a torque transmission plate friction pair A, and a friction plate spline tooth is embedded into a torque transmission window to form four friction pairs with torque output; the four torque input and output friction pairs are tightly attached to the transmission torque under the pressure of the disc spring, and no relative rotation exists between every two friction pairs; when the torque exceeds the abnormal fluctuation of the engine torque, the two friction pairs rotate relatively, redundant torque is consumed through slipping, and the torque is reduced to the range and then is input into the gearbox. The utility model has the advantages that only need less radial space, realize the limit of big moment of torsion and turn round the function.
Description
Technical Field
The utility model relates to a ware field is turned round to the limit, in particular to ware is turned round to multi-disc formula limit.
Background
The torque limiter is mainly applied to an automobile power assembly system, is generally applied to a power assembly system without a clutch, particularly a hybrid power system, is matched with a shock absorber, can prevent the torque overload of the power assembly, and plays a role in protecting the power assembly.
At present, in a power assembly system of a hybrid electric vehicle, a clutch is not needed to transmit and interrupt torque under many conditions, a torque limiter needs to be applied under the condition, vibration of an engine needs to be damped by using a damper due to the existence of the engine, under some special working conditions, the system can generate impact far larger than the maximum output torque of the engine due to reasons of resonance of the power assembly system and the like, the torque limiter is needed to limit the impact torque at the moment, and the impact torque is reduced to a reasonable range by the torque limiter through self slipping and then is input into a gearbox, so that the damage of the system is prevented.
The documents CN 204610617 and CN 206530653U disclose torque limiter structures with small diameters and only two friction pairs, which cannot transmit large torque. The CN 205836529U document, discloses that the torque limiter is arranged outside the damper, limiting the diameter of the damper, resulting in relatively poor damper performance.
At present, most of existing torque limiter structures are single-piece structures, only two friction pairs are provided, the required diameter is large on the premise that the requirement for transmitting torque is met, and the torque limiter is generally arranged at the outer diameter of a shock absorber when being matched with the shock absorber for use. At present, a torque limiter arranged at the inner diameter of the shock absorber does not exist, and the radial size of the torque limiter is small due to arrangement at the inner diameter, so that large torque cannot be transmitted. The torque limiter can meet the torque limiting requirements of small radial size and large torque at the same time, and the torque limiter is a place where improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a multi-piece type torque limiter for realizing the function of limiting torque with large torque is provided.
In order to solve the technical problem above, the utility model provides a ware is turned round to multi-disc formula limit, include:
the shaft sleeve plate is provided with a shaft sleeve plate torque transmission hole, a shaft sleeve plate friction pair A and a shaft sleeve plate friction pair B;
the force transmission plate is provided with a force transmission plate torque transmission flanging, a force transmission plate friction pair A and a force transmission plate friction pair B;
the force transmission plate torque transmission flanging is embedded into the shaft sleeve plate torque transmission hole and corresponds to the shaft sleeve plate torque transmission hole one by one, so that four friction pairs with torque input are formed, namely a shaft sleeve plate friction pair A, a shaft sleeve plate friction pair B, a force transmission plate friction pair A and a force transmission plate friction pair B;
the cover plate is provided with a cover plate friction pair, a torque transmission window and a cover plate rivet hole;
the spline shaft sleeve is provided with a spline shaft sleeve torque transmission hole, output spline teeth and a spline shaft sleeve rivet hole;
the rivet penetrates through the cover plate rivet hole and the spline shaft sleeve rivet hole to rivet and fix the cover plate and the spline shaft sleeve;
the disc spring is provided with a disc spring torque transmission flanging and a disc spring friction pair; the disc spring torque transmission flanging is embedded into the spline shaft sleeve torque transmission hole and corresponds to the spline shaft sleeve torque transmission hole one by one;
the friction plate is provided with a friction plate friction pair A, friction plate spline teeth and a friction plate friction pair B; the friction plate is arranged between the shaft sleeve plate friction pair B and the force transmission plate friction pair A;
spline teeth of the friction plates are embedded into the torque transmission windows and correspond to the spline teeth one to one, so that four friction pairs for torque output are formed, namely a cover plate friction pair, a friction plate friction pair A, a friction plate friction pair B and a disc spring friction pair;
the disc spring is axially constrained by the force transfer plate and the spline shaft sleeve, and is compressed to generate pressure; the four torque input friction pairs and the four torque output friction pairs are correspondingly and closely attached to the transmission torque under the pressure of the disc spring one by one, in the process of transmitting the torque, the four torque input friction pairs and the four torque output friction pairs are attached to the transmission torque, and the two friction pairs do not rotate relatively; when the torque generates abnormal fluctuation exceeding a certain multiple of the engine torque, two friction pairs generate relative rotation, redundant torque is consumed through slipping, and the torque is reduced to a range and then input into a gearbox.
The four torque input friction pairs and the four torque output friction pairs are tightly attached to the torque transmission in a one-to-one correspondence mode under the pressure of the disc springs, namely a shaft sleeve plate friction pair A is attached to a cover plate friction pair, a shaft sleeve plate friction pair B is attached to a friction plate friction pair A, a force transmission plate friction pair A is attached to a friction plate friction pair B, and a force transmission plate friction pair B is attached to a disc spring friction pair.
The shaft sleeve plate inputs the power of the engine into the multi-piece torque limiter through a torque input angle, the end face of the torque input angle is in contact with an elastic part, namely, the power input end of the multi-piece torque limiter is a shock absorber.
And each additional force transmission plate is provided with two corresponding torque input friction pairs.
The number of the shaft sleeve plate torque transmission holes is the same as that of the torque transmission flanges of the torque transmission plate, and more than 2 torque transmission holes are uniformly distributed.
The number of the disc spring torque transmission flanging is the same as that of the spline shaft sleeve torque transmission holes, and more than 2 disc spring torque transmission flanging are uniformly arranged.
And each friction plate is added with one friction plate, and two torque output friction pairs are correspondingly added.
In the multi-plate torque limiter assembly, the number of the transmission plates and the number of the friction plates are set to be greater than or equal to 1, namely the number of the torque input friction pairs and the number of the torque output friction pairs are even numbers greater than or equal to 2.
The number of the friction plate spline teeth is the same as that of the torque transmission windows, and more than 2 friction plate spline teeth are uniformly distributed.
The utility model discloses the superior efficiency of structure lies in:
1) the utility model provides a multi-piece torque limiter with more than two friction pairs, which only needs a smaller radial space to realize the torque limiting function of large torque;
2) the utility model discloses match fast in ripe shock absorber structures such as flywheel shock absorber, dual mass flywheel, only need replace a small amount of parts, need not to change current ripe structure greatly.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of an assembly according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a part assembly according to an embodiment of the present invention;
description of the figures
1-a shaft sleeve plate;
101-shaft sleeve plate torque transmission holes; 102-shaft sleeve plate friction pair A;
103-shaft sleeve plate friction pair B; 104-torque input angle;
2-a force transmission plate;
201-torque transmission flanging of a force transmission plate; 202-force transmission plate friction pair A;
203-force transmission plate friction pair B;
3-cover plate;
301-cover plate friction pair; 302-torque transmission window;
303-cover plate rivet holes;
4-disc spring;
401-disc spring torque transmission flanging; 402-disc spring friction pair;
5-spline shaft sleeve;
501-spline shaft sleeve torque transmission holes; 502-output spline teeth;
503-spline shaft sleeve rivet hole;
6-friction plate;
601-friction plate friction pair A; 602-friction plate spline teeth;
603-friction plate friction pair B;
7-rivet.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 shows a schematic cross-sectional view of an assembly according to an embodiment of the present invention, and fig. 2 shows a schematic cross-sectional view of a part of an assembly according to an embodiment of the present invention. As shown in fig. 1 and 2, the utility model provides a multi-plate torque limiter, including axle sleeve plate 1, dowel steel 2, apron 3, dish spring 4, spline shaft sleeve 5, friction disc 6 and rivet 7.
The shaft sleeve plate 1 inputs the power of an engine into the multi-piece torque limiter through a torque input angle 104, the end face of the torque input angle 104 is in contact with parts such as a spring, and the like, namely the power input end of the multi-piece torque limiter is a shock absorber. The shaft sleeve plate is characterized in that a shaft sleeve plate torque transmission hole 101, a shaft sleeve plate friction pair A102 and a shaft sleeve plate friction pair B103 are arranged on the shaft sleeve plate 1, a force transmission plate torque transmission flange 201, a force transmission plate friction pair A202 and a force transmission plate friction pair B203 are arranged on the force transmission plate 2, the number of the shaft sleeve plate torque transmission hole 101 is the same as that of the force transmission plate torque transmission flange 201, more than 2 force transmission plate torque transmission flanges are uniformly arranged, the force transmission plate torque transmission flanges 201 are embedded in the shaft sleeve plate torque transmission hole 101 and correspond to the shaft sleeve plate torque transmission hole 101 one by one, and four torque input friction pairs are formed by the four torque input friction pairs, namely the shaft sleeve plate friction pair A102, the shaft sleeve plate friction pair B103, the force transmission plate friction pair A202 and the force transmission plate friction pair B203. According to the practical application condition, the number of the torque input friction pairs is further increased by increasing the number of the force transfer plates 2, and two friction pairs are correspondingly increased by adding one force transfer plate 2.
The cover plate 3 is provided with a cover plate friction pair 301, a torque transmission window 302 and a cover plate rivet hole 303, the spline shaft sleeve 5 is provided with a spline shaft sleeve torque transmission hole 501, an output spline tooth 502 and a spline shaft sleeve rivet hole 503, and the cover plate 3 and the spline shaft sleeve 5 are riveted and fixed by a rivet 7 penetrating through the cover plate rivet hole 303 and the spline shaft sleeve rivet hole 503. Set up dish spring biography on the dish spring 4 and turn round turn-ups 401, the vice 402 of dish spring friction, dish spring 4 receives the axial restraint of biography power board 2 and spline housing 5, and dish spring 4 receives the compression and produces pressure, and dish spring biography turns round turn-ups 401 is the same with spline housing biography turn-ups hole 501 quantity, and the equipartition is put and is greater than more than 2, and during dish spring biography turned-ups 401 imbeds spline housing biography turn-ups hole 501, both one-to-one. The friction plate 6 is provided with a friction plate friction pair A601, friction plate spline teeth 602 and a friction plate friction pair B603, the friction plate 6 is arranged between a shaft sleeve plate friction pair B103 and a force transmission plate friction pair A202, the number of the friction plate spline teeth 602 is the same as that of the force transmission window 302, the number of the friction plate spline teeth 602 is more than 2, the friction plate spline teeth 602 are embedded in the force transmission window 302 and correspond to the force transmission window 302 one by one, so that four friction pairs for torque output are formed, namely a cover plate friction pair 301, the friction plate friction pair A601, the friction plate friction pair B603 and a disc spring friction pair 402, and the engine torque is transmitted to the next part through the output spline teeth 502. According to the practical application condition, the number of the friction plates 6 is increased to further increase the number of the torque output friction pairs, and two friction pairs are correspondingly increased by adding one friction plate 6.
The four torque input friction pairs and the four torque output friction pairs are tightly attached to torque transmission in a one-to-one correspondence mode under the pressure of disc springs 4, a shaft sleeve plate friction pair A102 is attached to a cover plate friction pair 301, a shaft sleeve plate friction pair B103 is attached to a friction plate friction pair A601, a force transmission plate friction pair A202 is attached to a friction plate friction pair B603, a disc spring friction pair 402 is attached to a force transmission plate friction pair B203, the four torque input friction pairs and the four torque output friction pairs are attached to the torque transmission in the process of transmitting the torque, and the two friction pairs do not rotate relatively; when the torque generates abnormal fluctuation exceeding a certain multiple of the engine torque, the two friction pairs rotate relatively, redundant torque is consumed in a slipping mode, and damage to parts at the front end and the rear end of the torque limiter is avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a multi-disc formula limit is turned round ware which characterized in that: the method comprises the following steps:
the shaft sleeve plate is provided with a shaft sleeve plate torque transmission hole, a shaft sleeve plate friction pair A and a shaft sleeve plate friction pair B;
the force transmission plate is provided with a force transmission plate torque transmission flanging, a force transmission plate friction pair A and a force transmission plate friction pair B;
the torque transmission flanging of the force transmission plate is embedded into the torque transmission hole of the shaft sleeve plate to form four friction pairs with torque input, namely a shaft sleeve plate friction pair A, a shaft sleeve plate friction pair B, a force transmission plate friction pair A and a force transmission plate friction pair B;
the cover plate is provided with a cover plate friction pair, a torque transmission window and a cover plate rivet hole;
the spline shaft sleeve is provided with a spline shaft sleeve torque transmission hole, output spline teeth and a spline shaft sleeve rivet hole;
the rivet penetrates through the cover plate rivet hole and the spline shaft sleeve rivet hole to rivet and fix the cover plate and the spline shaft sleeve;
the disc spring is provided with a disc spring torque transmission flanging and a disc spring friction pair; the disc spring torque transmission flanging is embedded into the spline shaft sleeve torque transmission hole;
the friction plate is provided with a friction plate friction pair A, friction plate spline teeth and a friction plate friction pair B; the friction plate is arranged between the shaft sleeve plate friction pair B and the force transmission plate friction pair A;
spline teeth of the friction plate are embedded into the torque transmission window to form four friction pairs for torque output, namely a cover plate friction pair, a friction plate friction pair A, a friction plate friction pair B and a disc spring friction pair;
the four torque input friction pairs and the four torque output friction pairs are correspondingly attached to the torque transmission under the pressure of the disc springs one by one, in the process of transmitting the torque, the four torque input friction pairs and the four torque output friction pairs are attached to the torque transmission, and no relative rotation exists between every two friction pairs; when the torque generates abnormal fluctuation which exceeds a certain multiple of the engine torque, the two friction pairs generate relative rotation, redundant torque is consumed through slipping, and the torque is reduced to a range and then input into the gearbox.
2. The multi-piece torque limiter of claim 1, wherein: the four torque input friction pairs and the four torque output friction pairs are tightly attached to transmit torque, namely a shaft sleeve plate friction pair A is attached to a cover plate friction pair, a shaft sleeve plate friction pair B is attached to a friction plate friction pair A, a force transmission plate friction pair A is attached to a friction plate friction pair B, and a force transmission plate friction pair B is attached to a disc spring friction pair.
3. The multi-piece torque limiter of claim 1, wherein: the shaft sleeve plate inputs the power of the engine into the multi-piece torque limiter through a torque input angle, the end face of the torque input angle is in contact with an elastic part, namely, the power input end of the multi-piece torque limiter is a shock absorber.
4. The multi-piece torque limiter of claim 1, wherein: and each additional force transmission plate is provided with two corresponding torque input friction pairs.
5. The multi-piece torque limiter of claim 1, wherein: the number of the shaft sleeve plate torque transmission holes is the same as that of the torque transmission flanges of the torque transmission plate, and more than 2 torque transmission holes are uniformly distributed.
6. The multi-piece torque limiter of claim 1, wherein: the number of the disc spring torque transmission flanging is the same as that of the spline shaft sleeve torque transmission holes, and more than 2 disc spring torque transmission flanging are uniformly arranged.
7. The multi-piece torque limiter of claim 1, wherein: and each friction plate is added with one friction plate, and two torque output friction pairs are correspondingly added.
8. The multi-piece torque limiter of claim 1, wherein: the number of the friction plate spline teeth is the same as that of the torque transmission windows, and more than 2 friction plate spline teeth are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361132.2U CN214888478U (en) | 2021-02-09 | 2021-02-09 | Multi-piece torque limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361132.2U CN214888478U (en) | 2021-02-09 | 2021-02-09 | Multi-piece torque limiter |
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| Publication Number | Publication Date |
|---|---|
| CN214888478U true CN214888478U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120361132.2U Active CN214888478U (en) | 2021-02-09 | 2021-02-09 | Multi-piece torque limiter |
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| CN (1) | CN214888478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879452A (en) * | 2021-02-09 | 2021-06-01 | 华域动力总成部件系统(上海)有限公司 | Multi-piece torque limiter |
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2021
- 2021-02-09 CN CN202120361132.2U patent/CN214888478U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879452A (en) * | 2021-02-09 | 2021-06-01 | 华域动力总成部件系统(上海)有限公司 | Multi-piece torque limiter |
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