CN215767512U

CN215767512U - Clutch gas tightness detection device

Info

Publication number: CN215767512U
Application number: CN202121552311.0U
Authority: CN
Inventors: 陈振聪; 吴国民; 倪川
Original assignee: Cnc Driveline Technology Co ltd
Current assignee: Cnc Driveline Technology Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-02-08
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses a clutch air tightness detection device, which comprises a positioning seat, a pressing component and an air tightness tester, wherein the pressing component is used for fixing a clutch; the pressing assembly comprises a pressing plate and a power mechanism for driving the pressing plate, the pressing plate is used for pressing the clutch tightly, so that a closed space is formed between the positioning seat and the clutch, an oil inlet of the clutch is communicated with the closed space, and an air inlet is communicated with the closed space; the air tightness tester is communicated with the air inlet. The utility model can reduce the detection difficulty of the clutch and conveniently detect the air tightness of the clutch.

Description

Clutch gas tightness detection device

Technical Field

The utility model relates to the field of goods shelves, in particular to a clutch airtightness detection device.

Background

The automobile clutch is an important part, the internal structure of the automobile clutch has strict requirements on air tightness, if leakage occurs, the performance of the automobile clutch is greatly influenced, and the automobile clutch is qualified only if the leakage amount is very small. However, since only one oil inlet hole is formed in the clutch, and the other oil inlet holes are completely sealed, it is very difficult to measure the leakage amount of the clutch when no leakage exists.

In the past, an oil inlet pipe of a clutch is manually connected by an air pipe, the clutch is inflated, then the clutch is put into oil, and no air bubble emerges from water. The detection method has the advantages of high labor intensity, low production efficiency and incapability of acquiring accurate leakage numerical values.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a device for detecting the air tightness of a clutch, which can reduce the detection difficulty of the clutch and conveniently detect the air tightness of the clutch.

The clutch air tightness detection device comprises a positioning seat, a pressing component and an air tightness tester, wherein the positioning seat is used for fixing a clutch and is provided with an air inlet; the pressing assembly comprises a pressing plate and a power mechanism for driving the pressing plate, the pressing plate is used for pressing the clutch tightly, so that a closed space is formed between the positioning seat and the clutch, an oil inlet of the clutch is communicated with the closed space, and the air inlet is communicated with the closed space; the air tightness tester is communicated with the air inlet.

The clutch airtightness detection device provided by the embodiment of the utility model at least has the following beneficial effects: install the clutch on the positioning seat, power unit drive clamp plate compresses tightly the clutch, the positioning seat with form the enclosure between the clutch, the gas tightness detector lets in gas, lets the clutch detect fast, improves detection efficiency.

According to some embodiments of the utility model, the positioning seat is provided with a sealing ring for abutting against the clutch to prevent gas leakage.

According to some embodiments of the utility model, the positioning seat is provided with a positioning hole, and the clutch is provided with a central shaft, and the positioning hole is used for matching with the central shaft to position the clutch on the positioning seat.

According to some embodiments of the utility model, the clamping device further comprises a clamping spring, the central shaft is provided with a clamping groove, and the pressing plate can drive the clamping spring to be clamped with the clamping groove.

According to some embodiments of the utility model, the clutch further comprises an inner piston, the inner piston is coaxially mounted with the clutch, and the clamp spring is clamped with the clamping groove to enable the inner piston to be mounted on the clutch.

According to some embodiments of the utility model, a clamp spring guide sleeve is arranged on the central shaft and used for expanding the clamp spring, so that the clamp spring can be clamped with the clamp groove.

According to some embodiments of the utility model, the circlip guide sleeve is of a conical structure.

According to some embodiments of the utility model, the clamp plate is provided with a clamp plate groove, and the clamp plate groove is matched with the clamp spring.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a clutch airtightness detection apparatus according to an embodiment of the present invention;

fig. 2 is a partially enlarged schematic view of the clutch airtightness detecting apparatus shown in fig. 1;

FIG. 3 is a schematic view of a clutch according to an embodiment of the present invention.

The clutch 100, the central shaft 110, the clamp spring 120, the inner piston 130 and the clamp spring guide sleeve 140;

positioning seat 200, sealing ring 210, positioning hole 220 and air inlet 250;

a hold-down assembly 300, a platen slot 310;

the air tightness tester 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, 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, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, 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 otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 3, in the description of the present invention, the direction of arrows in the drawings is a gas input direction of the airtightness tester 400.

Referring to fig. 1 to 3, a clutch airtightness detection apparatus according to an embodiment of a first aspect of the present invention includes a positioning seat 200, a pressing assembly 300, and an airtightness tester 400 for fixing a clutch 100, wherein the positioning seat 200 is provided with an air inlet 250; the pressing assembly 300 comprises a pressing plate and a power mechanism for driving the pressing plate, the pressing plate is used for pressing the clutch 100 tightly, so that a closed space is formed between the positioning seat 200 and the clutch 100, an oil inlet of the clutch 100 is communicated with the closed space, and the air inlet 250 is communicated with the closed space; the air-tightness tester 400 communicates with the air inlet 250.

The clutch airtightness detection device provided by the embodiment of the utility model at least has the following beneficial effects: install clutch 100 on positioning seat 200, power unit drive clamp plate compresses tightly clutch 100, forms the enclosure between positioning seat 200 and the clutch 100, and the gas tightness detector lets in gas, lets clutch 100 detect fast, improves detection efficiency.

In some embodiments of the present invention, the positioning seat 200 is provided with a sealing ring 210, and the sealing ring 210 is used for abutting with the clutch 100 to prevent gas leakage. The seal ring 210 is made of rubber or silica gel, the seal ring 210 has certain elasticity, after the pressure plate drives the clutch 100 to press down, the clutch 100 can be abutted against the seal ring 210, and the force of the clutch 100 can act on the seal ring 210 to compress the seal ring 210, so that gas leakage is prevented.

In some embodiments of the present invention, the positioning seat 200 is provided with a positioning hole 220, the clutch 100 is provided with the central shaft 110, and the positioning hole 220 is used for matching with the central shaft 110 to position the clutch 100 on the positioning seat 200. The positioning holes 220 and the central shaft 110 are positioned, so that the clutch 100 is conveniently installed on the positioning seat 200, and the detection efficiency is improved.

In some embodiments of the present invention, the clamping spring 120 is further included, the central shaft 110 is provided with a clamping groove, and the pressing plate can drive the clamping spring 120 to clamp the clamping groove.

In some embodiments of the present invention, the clutch further comprises an inner piston 130, the inner piston 130 is coaxially installed with the clutch 100, and the snap spring 120 is engaged with the snap groove to enable the inner piston 130 to be installed on the clutch 100. By "coaxially mounted", it is understood that the inner piston 130 is mounted to the clutch 100 along the central axis 110 of the clutch 100, and the circlip 120 is mounted to secure the inner piston 130 to the clutch 100.

In some embodiments of the present invention, a clamp spring guide sleeve 140 is disposed on the central shaft 110, the clamp spring guide sleeve 140 is used for spreading the clamp spring 120, so that the clamp spring 120 can be clamped in the clamp groove, and the clamp spring guide sleeve 140 is a tapered structure. When the clamp spring 120 is driven to press down by the pressing plate, the clamp spring guide sleeve 140 is of a conical structure, so that the clamp spring 120 can expand, the inner diameter of the clamp spring 120 is larger than the outer diameter of the clutch 100, and the clamp spring 120 can be clamped with the clamp groove.

In some embodiments of the present invention, a pressing plate groove 310 is formed on the pressing plate, and the pressing plate groove 310 is engaged with the circlip 120. Before the clamp spring 120 is installed in the clamping groove, the clamp spring 120 is abutted to the pressure plate groove 310, and the stress point of the clutch 100 and the pressure plate is only in the pressure plate groove 310; after the clamp spring 120 is installed in the clamping groove, the pressing plate abuts against the clutch 100, and the stress point of the clutch 100 and the pressing plate is located on the whole pressing plate, so that the clutch 100 is better stressed.

In some embodiments of the utility model, the clutch airtightness detection device is used by the following method:

the clutch 100 is placed on the positioning seat 200 to be positioned, the inner piston 130 is placed inside along the central shaft 110 of the clutch 100, the clamp spring guide sleeve 140 is also placed inside along the central shaft 110 of the clutch 100, and the small clamp spring 120 is placed on the clamp spring guide sleeve 140;

a start key of the equipment is pressed, and the pressing plate stably and slowly moves downwards under the action of the power mechanism;

when the pressing plate contacts the clamp spring 120, the clamp spring 120 is slowly expanded under the action of the external conicity of the clamp spring guide sleeve 140, the pressing plate continues to be pressed downwards until the inner piston 130 and the clamp spring 120 are pushed to a certain position, at this time, the clamp spring 120 and the clamping groove of the central shaft 110 of the clutch 100 are on the same level, under the action of the tightening force of the clamp spring 120, the small clamp spring 120 is clamped into the clamping groove, and the inner piston 130 is installed.

The power mechanism sets a certain force value, when the inner piston 130 is installed, the force value is not yet reached, the upper pressing plate can continue to move downwards, but the clamp spring 120 is clamped into the clamp groove, and at the moment, the whole clutch 100 moves downwards under the action of the clamp spring 120. The force of the clutch 100 will act on the seal 210 compressing it and the power mechanism will stop moving when the set force value is reached.

When the power mechanism stops moving, the power mechanism starts to convey gas, and the gas enters the clutch 100 through the gas tightness tester 400, the gas inlet 250, the positioning seat 200. Because the sealing ring 210 is compressed by the clutch 100, a closed space is formed inside the clutch 100 and in the hole of the positioning seat 200, when gas enters the closed space and reaches a set pressure value, the gas transmission of the gas tightness tester 400 is stopped, and the pressure of the closed space is maintained for a set time. The air tightness tester 400 records and displays the leakage value in the pressure maintaining time, so that the whole process of installing the piston 130 in the clutch 100 and detecting the air tightness is completed, the production efficiency is high, and the data is accurate.

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 within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A clutch airtightness detection apparatus, characterized by comprising:

the positioning seat (200) is used for fixing the clutch (100), and the positioning seat (200) is provided with an air inlet (250);

the pressing assembly (300) comprises a pressing plate and a power mechanism for driving the pressing plate, the pressing plate is used for pressing the clutch (100) tightly, a closed space is formed between the positioning seat (200) and the clutch (100), an oil inlet of the clutch (100) is communicated with the closed space, and an air inlet (250) is communicated with the closed space;

an air-tightness tester (400) in communication with the air inlet (250).

2. The clutch gas tightness detection device according to claim 1, characterized in that the positioning seat (200) is provided with a sealing ring (210), and the sealing ring (210) is used for abutting against the clutch (100) to prevent gas leakage.

3. The clutch airtightness detection apparatus according to claim 1, wherein the positioning seat (200) is provided with a positioning hole (220), the clutch (100) is provided with a central shaft (110), and the positioning hole (220) is used for matching with the central shaft (110) to position the clutch (100) on the positioning seat (200).

4. The clutch airtightness detection apparatus according to claim 3, further comprising a clamp spring (120), wherein the central shaft (110) is provided with a clamping groove, and the pressing plate can drive the clamp spring (120) to clamp the clamping groove.

5. The clutch airtightness detection apparatus according to claim 4, further comprising an inner piston (130), wherein the inner piston (130) is coaxially mounted with the clutch (100), and the clamp spring (120) is clamped into the clamp groove so that the inner piston (130) is mounted on the clutch (100).

6. The clutch airtightness detection device according to claim 4, wherein a clamp spring guide sleeve (140) is arranged on the central shaft (110), and the clamp spring guide sleeve (140) is used for expanding the clamp spring (120) so that the clamp spring (120) can be clamped in the clamp groove.

7. The clutch airtightness detection apparatus according to claim 6, wherein the circlip guide sleeve (140) has a tapered structure.

8. The clutch airtightness detection apparatus according to claim 4, wherein the pressure plate has a pressure plate groove (310), and the pressure plate groove (310) is engaged with the clamp spring (120).