阅读说明：本技术 一种免车内腔拉式结构离合器盖及装配方法 (Clutch cover with pull-type structure in inner cavity of vehicle-free and assembling method ) 是由 梁广才 郑茂 吕剑凯 蒙杰 林升垚 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种免车内腔拉式结构离合器盖及装配方法,该离合器盖包括内腔体(1)以及分别与内腔体(1)进行装配的支承环(5)、膜片弹簧(6)和离合器盖总成(7)；其中：所述的内腔体(1)包括承受区(2)及侧壁区(3)；所述侧壁区(3)设置在承受区(2)的一侧,所述侧壁区(3)设有台阶；在所述承受区(2)和侧壁区(3)连接处设有支承环凹槽(4)。本发明结构简单方便、设计精确合理,在一次压出凹槽的情况下,能够确保凹槽卡住支承环,使其与膜片弹簧接触时,不产生松动,提高产品精度,提升生产效率,降低生产成本。(The invention discloses a clutch cover with a pull-type structure in a vehicle-free inner cavity and an assembly method, wherein the clutch cover comprises an inner cavity (1), and a support ring (5), a diaphragm spring (6) and a clutch cover assembly (7) which are respectively assembled with the inner cavity (1); wherein: the inner cavity (1) comprises a bearing area (2) and a side wall area (3); the side wall area (3) is arranged on one side of the bearing area (2), and the side wall area (3) is provided with a step; and a supporting ring groove (4) is arranged at the joint of the bearing zone (2) and the side wall zone (3). The invention has simple and convenient structure and accurate and reasonable design, can ensure that the supporting ring is clamped by the groove under the condition of extruding the groove once, so that the supporting ring does not loosen when contacting with the diaphragm spring, improves the product precision, improves the production efficiency and reduces the production cost.)

1. A clutch cover with a pull-type structure in a vehicle-free inner cavity comprises an inner cavity (1), and a support ring (5), a diaphragm spring (6) and a clutch cover assembly (7) which are respectively assembled with the inner cavity (1); the method is characterized in that: the inner cavity (1) comprises a bearing area (2) and a side wall area (3); the side wall area (3) is arranged on one side of the bearing area (2), and the side wall area (3) is provided with a step; and a supporting ring groove (4) is arranged at the joint of the bearing zone (2) and the side wall zone (3).

2. The vehicle-free inner cavity pull type structure clutch cover according to claim 1, is characterized in that: the supporting ring groove (4) is a circular through groove and penetrates through the whole bearing area (2).

3. The vehicle-free inner cavity pull type structure clutch cover according to claim 1, is characterized in that: the width K of the supporting ring groove (4) is more than or equal to the diameter of the supporting ring (5).

4. The vehicle-free inner cavity pull type structure clutch cover according to claim 1, is characterized in that: the depth H of the supporting ring groove (4) is 1/5 of the thickness of the materials used in the bearing area (2).

5. The vehicle-free inner cavity pull type structure clutch cover according to claim 1, is characterized in that: the length C of the step connection part of the support ring groove (4) and the side wall area (3) is 4/5 of the diameter of the support ring (5).

6. The vehicle-free inner cavity pull type structure clutch cover according to claim 1, is characterized in that: the joint of the bearing area (2) and the side wall area (3) is in fillet transition.

7. The assembling method of the clutch cover with the pull-type structure in the vehicle-free inner cavity as claimed in any one of claims 1 to 6 is characterized in that: the method comprises the following steps:

1) groove pressing: pressure is transmitted to a bearing zone (2) and a side wall zone (3) of the inner cavity through a hydraulic instrument, so that the bearing zone (2) is pressed out of a supporting ring groove (4), the side wall zone is pressed out of two layers of side walls to form a step, and the step is used for limiting a supporting ring (5) and a diaphragm spring (6);

2) clamping: placing a supporting ring (5) in a supporting ring groove (4) corresponding to the bearing area (2) of the inner cavity (1); the diaphragm spring (6) is arranged on the upper side of the supporting ring (5);

3) assembling: and finally, assembling the press-riveted workpiece on a clutch cover assembly (7).

Technical Field

The invention belongs to the technical field of automobile part clutch cover manufacturing, and particularly relates to a clutch cover with a pull-type structure in a vehicle-free inner cavity and an assembling method.

Background

The clutch is the key subassembly of automobile transmission system, and traditional formula automobile clutch cover inner chamber that draws often realizes through car processing, however car processing efficiency is low, and lid degree of depth, groove depth, inner chamber excircle are unstable, and various cooperation sizes are out of tolerance, and the blade wearing and tearing shortcoming such as fast influence the precision of final product. In addition, the clutch cover assembly assembled by the machined cover has the potential fault hazards of unstable pressure and unqualified parallelism; unqualified needs to be drilled, disassembled and scrapped, so that the production efficiency is influenced, and meanwhile, the production cost is increased.

Disclosure of Invention

The invention aims to provide a clutch cover with a pull-type structure in a vehicle-free inner cavity and an assembling method aiming at the defects in the prior art. The invention has simple and convenient structure and accurate and reasonable design, can ensure that the supporting ring is clamped by the groove under the condition of extruding the groove once, so that the supporting ring does not loosen when contacting with the diaphragm spring, improves the product precision, improves the production efficiency and reduces the production cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a clutch cover with a pull-type structure in a vehicle-free inner cavity comprises an inner cavity, and a support ring, a diaphragm spring and a clutch cover assembly which are respectively assembled with the inner cavity; the inner cavity comprises a bearing area and a side wall area; the side wall area is arranged on one side of the bearing area, and the side wall area is provided with steps (namely two layers of side walls can be formed); and a supporting ring groove is arranged at the joint of the bearing zone and the side wall zone.

The supporting ring groove is pressed on the inner cavity through a hydraulic instrument and is used for limiting the supporting ring and pressing the side wall area of the inner cavity into two layers of side walls, so that the supporting ring can be limited and the diaphragm spring can be prevented from being interfered; the problems of unstable pressure and unqualified parallelism of the clutch cover assembly are avoided without using lathe machining, the production efficiency is high, and the production cost is reduced.

According to a further development of the invention, the bearing ring groove is a circular through groove and extends through the entire bearing zone. The bearing area can bear the pressure released by the bearing ring and the diaphragm spring.

According to a further development of the invention, the width K of the bearing ring groove is greater than or equal to the diameter of the bearing ring. This size can ensure that the support ring is placed behind the support ring groove, ensures that the support ring does not become loose, can cling to the diaphragm spring simultaneously.

In a further development of the invention, the depth H of the bearing ring groove is 1/5 times the thickness of the receiving zone material. The size can ensure that the bearing zone has enough strength, and meanwhile, the bearing ring groove cannot be too thin to cause uneven stress.

In a further development of the invention, the length C of the bearing ring groove at the connection with the step in the side wall region is 4/5 for the diameter of the bearing ring. The size can ensure that the outer diameter of the supporting ring is positioned in the range of the side wall area, and the outer diameter of the supporting ring is clamped to prevent the supporting ring from swinging.

According to the invention, the junction of the bearing zone and the side wall zone is in fillet transition. The design of the fillet transition can eliminate the stress at the corners of the bearing area and the side wall area, and enhance the strength of the bearing area.

The invention discloses an assembling method of a clutch cover with a pull-type structure in a vehicle-free inner cavity, which comprises the following steps:

1) groove pressing: pressure is transmitted to a bearing area and a side wall area of the inner cavity through a hydraulic instrument, so that the bearing area is extruded out of a supporting ring groove, the side wall area is extruded out of two layers of side walls to form a step, and the step is used for limiting the supporting ring and the diaphragm spring;

2) clamping: placing the supporting ring in a supporting ring groove corresponding to the bearing area of the inner cavity; the diaphragm spring is arranged on the upper side of the supporting ring;

3) assembling: and finally assembling the press-riveted workpiece on the clutch cover assembly.

Compared with the prior art, the invention has the following beneficial effects:

1. the clutch cover assembly has a simple structure, the inner cavity of the cover is processed in a one-time groove pressing mode, the traditional processing mode is changed, and the problems of unstable pressure and unqualified parallelism of the clutch cover assembly are solved.

2. The supporting ring groove has the advantages that the width, the depth and the length of the groove of the supporting ring are specially limited, the supporting ring in the bearing area can be ensured not to be loosened, the supporting ring is tightly attached to the diaphragm spring, the outer diameter of the supporting ring is clamped, the swinging is prevented, and meanwhile, the supporting ring groove has enough strength.

3. The inner cavity of the bearing ring can be processed by one-time groove pressing, so that the bearing zone, the side wall zone and the supporting ring groove are processed, the working efficiency is high, and the production cost is saved.

Drawings

Fig. 1 is a schematic structural diagram of a clutch cover assembly according to an embodiment of the invention.

Fig. 2 is a schematic structural view of a cross section a-a of the inner cavity in fig. 1 according to an embodiment of the present invention.

FIG. 3 is an assembled view of a partial section A-A of the inner cavity shown in FIG. 1 according to an embodiment of the present invention.

FIG. 4 is a side view of the structure of the receiving area and the sidewall area in the embodiment of the present invention.

Reference numerals: 1-inner cavity, 2-bearing zone, 3-side wall zone, 4-supporting ring groove, 5-supporting ring, 6-diaphragm spring and 7-clutch cover assembly.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example (b):

as shown in fig. 1-4, a clutch cover with a pull-type structure in a vehicle-free inner cavity comprises an inner cavity 1, and a support ring 5, a diaphragm spring 6 and a clutch cover assembly 7 which are respectively assembled with the inner cavity 1; wherein: the inner cavity 1 comprises a bearing area 2 and a side wall area 3; the side wall area 3 is arranged on one side of the bearing area 2, and the side wall area 3 is provided with a step; a support ring groove 4 is arranged at the joint of the bearing zone 2 and the side wall zone 3.

The support ring groove 4 is a circular through groove and extends through the entire receiving area 2. The width K of the supporting ring groove 4 is more than or equal to the diameter of the supporting ring 5. The depth H of the support ring groove 4 is 1/5 times the thickness of the receiving area 2. The length C of the bearing ring groove 4 at the step junction with the side wall region 3 is 4/5 of the diameter of the bearing ring 5. The joint of the bearing area 2 and the side wall area 3 is in fillet transition.

The assembling method of the clutch cover with the pull-type structure in the interior of the vehicle-free cavity comprises the following steps:

1) groove pressing: pressure is transmitted to a bearing zone 2 and a side wall zone 3 of the inner cavity through a hydraulic instrument, so that the bearing zone 2 is extruded out of a supporting ring groove 4, the side wall zone is extruded out of two layers of side walls to form a step, and the step is used for limiting a supporting ring 5 and a diaphragm spring 6;

2) clamping: placing a supporting ring 5 in a supporting ring groove 4 corresponding to the bearing area 2 of the inner cavity 1; the diaphragm spring 6 is placed on the upper side of the supporting ring 5;

3) assembling: and finally assembling the press-riveted workpiece on the clutch cover assembly 7.

In the embodiment, the supporting ring groove is pressed out of the inner cavity through a hydraulic instrument and is used for limiting the supporting ring and pressing the side wall area of the inner cavity out of two layers of side walls, so that the supporting ring can be limited and the diaphragm spring can be prevented from being interfered; the problems of unstable pressure and unqualified parallelism of the clutch cover assembly are avoided without using lathe machining, the production efficiency is high, and the production cost is reduced.

It should be understood that the above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the practice of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description; this is not necessary, nor exhaustive, of all embodiments; and obvious variations or modifications of the invention may be made without departing from the scope of the invention.