Double-clutch return spring set

Abstract

The utility model relates to the technical field of return springs, and discloses a double-clutch return spring set which comprises an inner gear hub, a return spring mechanism is arranged on the surface of one side of the inner gear hub in a clamped mode, the return spring mechanism comprises a fixing ring, return spring bodies are fixedly connected to the periphery of the interior of the fixing ring, and the inner side of the inner gear hub is provided with a return spring. A protective coating is fixedly connected to the periphery of the outer surface of the return spring body and comprises a phosphating coating, an electrophoretic paint coating is fixedly connected to the surface of the upper end of the phosphating coating, a galvanized coating is fixedly connected to the surface of the upper end of the electrophoretic paint coating, and a spring supporting plate is clamped to the surface of the upper end of the fixing ring. According to the return spring, the protective coating is fixedly connected to the periphery of the surface of the return spring set, and the protective coating is composed of the phosphating coating, the electrophoretic paint coating and the galvanized coating, so that the abrasion resistance and the overall hardness of the spring are improved, and the return spring is not prone to breakage in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of return springs, in particular to a double clutch return spring assembly. Background Art

[0002] An electric vehicle is a vehicle driven by electricity, and the clutch in the electric vehicle is an important part of the electric vehicle. The clutch is an important component in the automobile transmission system, mainly used to connect the engine and the gearbox, and the return spring group in the clutch is an important part of the clutch. The return spring group is a spring device that realizes the automatic reset function.

[0003] The return spring groups in some existing dual clutches have certain defects. The main reason is that the durability of the return spring group itself is relatively poor. Because the clutch is frequently engaged and disengaged during use, the return spring group is subjected to great impact and wear, and eventually the return spring group is broken. Therefore, the technical personnel in this field provide a dual clutch return spring group to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a dual-clutch return spring group, in which a protective coating is fixedly connected around the surface of the return spring group, and the protective coating is composed of a phosphating coating, an electrophoretic paint coating and a galvanized coating, thereby improving the wear resistance and overall hardness of the spring, so that the return spring will not break easily during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual clutch return spring assembly, comprising an inner gear hub, a return spring mechanism is clamped on one side surface of the inner gear hub, the return spring mechanism comprises a fixing ring, a return spring body is fixedly connected to the inside of the fixing ring around, a protective coating is fixedly connected to the outer surface of the return spring body around, the protective coating comprises a phosphating coating, an electrophoretic paint coating is fixedly connected to the upper end surface of the phosphating coating, and a galvanized coating is fixedly connected to the upper end surface of the electrophoretic paint coating;

[0006] A spring support plate is clamped on the upper surface of the fixing ring. First circular through holes are provided on the surrounding surfaces of the spring support plate away from the center. Fixers are provided through the upper surfaces of the first circular through holes.

[0007] Through the above technical scheme, a protective coating is fixedly connected to the surface of the return spring body, the hardness and wear resistance of the spring surface are improved by the action of the phosphating coating in the protective coating, and a uniform and dense paint film can be formed on the surface of the return spring body under the action of the electrophoretic paint coating. Under the action of this paint film, the surface of the return spring body has excellent rust resistance and corrosion resistance. The galvanized coating can prevent the return spring body from oxidation in harsh environments. At the same time, the fatigue resistance of the return spring body can be improved under the action of the galvanized coating. The fixing ring and the spring support plate are clamped together, and then the fixer is passed through the first circular through hole and the circular groove thread of the fixing column is set together, thereby improving the connection strength between the fixing ring and the spring support plate, thereby avoiding the return spring body in the middle part from falling off due to loose connection between the two, resulting in failure of the entire clutch.

[0008] Furthermore, a connecting pipe is fixedly connected to the center of one side surface of the inner gear hub;

[0009] Through the above technical solution, the connecting pipe mainly serves as an important channel for transmitting power inside the clutch, and is mainly responsible for smoothly transmitting the power of the engine to the transmission or other transmission components, thereby ensuring the smooth operation of the vehicle.

[0010] Furthermore, a plurality of wet oil-based friction plates are clamped and arranged on the surface of one side of the return spring mechanism;

[0011] Through the above technical solution, the role of the wet oil-based friction plate is to cut off and engage power transmission during the process of clutch separation and engagement.

[0012] Furthermore, the inner walls of the plurality of wet oil-based friction plates are meshed with an external gear hub, and a surface of one side of the external gear hub is clamped with an elastic retaining ring;

[0013] Through the above technical solution, because the outer gear hub is a key component in the clutch, it is mainly used to support the friction plate and the steel diaphragm and bear a certain torque. The main function of the elastic retaining ring is to play the role of shock absorption, buffering, transmission and sealing in the clutch. The vibration and noise in the transmission process can be effectively reduced under the action of the elastic retaining ring, thereby improving the service life of the clutch.

[0014] Furthermore, the upper end of the fixing ring is fixedly connected to the surface away from the center with fixing columns all around, and the upper end surfaces of the fixing columns are provided with circular grooves;

[0015] Through the above technical solution, the main function of the fixing column is to penetrate the first circular through hole, so as to use the circular groove at its upper end to be threadedly connected with the fixer.

[0016] Furthermore, a second circular through hole is provided at the center of the upper end surface of the spring support plate;

[0017] Through the above technical solution, the main function of the second circular through hole is to allow the connecting pipe to pass through the spring support plate.

[0018] Furthermore, a handle is fixedly connected to the upper end surface of the plurality of the fixers;

[0019] Through the above technical solution, the fixer and the fixing column can be connected together through the threaded arrangement under the action of the handle.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model proposes a dual-clutch return spring assembly, in which a protective coating is coated on the surface of the return spring body. The hardness and wear resistance of the surface of the return spring body can be improved by the action of the phosphating coating in the protective coating, and a uniform and dense paint film can be formed on the surface of the return spring body by the action of the electrophoretic paint coating. The surface of the return spring body has good rust resistance and corrosion resistance by the action of the paint film. The return spring body has strong fatigue resistance by the action of the galvanized coating, and can still maintain its gloss in harsh environments to prevent oxidation. In short, the return spring body can be protected by the protective coating.

[0022] 2. The utility model proposes a dual-clutch return spring assembly, which is configured by clamping a fixing ring and a spring support plate together, and then the connection strength between the two can be improved under the action of a fixer. In this way, during the operation of the clutch, the return spring can fall off inside the fixing ring and the spring support plate, so that the clutch pedal loses the ability to return, thereby increasing the driving safety risk. In addition, the return spring falls off, thereby affecting the normal operation of the clutch, causing poor power transmission and difficulty in starting the car, which seriously affects the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the axle side of the utility model;

[0024] Figure 2 It is the explosion diagram proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the shaft side of the return spring assembly proposed by the utility model;

[0026] Figure 4 This is a schematic diagram of the axial side of the fixer proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of the protective coating structure proposed by the utility model.

[0028] Legend:

[0029] 1. Internal gear hub; 2. Connecting pipe; 3. Return spring mechanism; 301. Fixed ring; 302. Return spring body; 303. Spring support plate; 304. Fixed column; 305. Circular groove; 306. First circular through hole; 307. Second circular through hole; 308. Fixer; 309. Handle; 310. Protective coating; 31001. Phosphate coating; 31002. Electrophoretic paint coating; 31003. Galvanized coating; 4. Wet oil-based friction plate; 5. External gear hub; 6. Elastic retaining ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-5 The utility model provides an embodiment: a dual clutch return spring group, including an inner gear hub 1, a return spring mechanism 3 is clamped on one side surface of the inner gear hub 1, a connecting pipe 2 is fixedly connected at the center of one side surface of the inner gear hub 1, a plurality of wet oil-based friction plates 4 are clamped on one side surface of the return spring mechanism 3, an outer gear hub 5 is meshed around the inner walls of the plurality of wet oil-based friction plates 4, and an elastic retaining ring 6 is clamped on one side surface of the outer gear hub 5.

[0032] The main function of the inner gear hub 1 is positioning and fixing. Through the action of the connecting pipe 2, the power of the engine can be smoothly transmitted to the transmission or other transmission parts, and under the action of the wet oil-based friction plate 4, it can cut off and engage the power transmission during the separation and engagement of the clutch. Through the action of the outer gear hub 5, it can withstand a certain torque during the operation of the clutch, and the role of the elastic retaining ring 6 is to play the role of shock absorption, buffering, transmission and sealing.

[0033] Reference Figure 3-5The return spring mechanism 3 includes a fixing ring 301, the inner periphery of the fixing ring 301 is fixedly connected with a return spring body 302, the outer periphery of the return spring body 302 is fixedly connected with a protective coating 310, the protective coating 310 includes a phosphating coating 31001, the upper end surface of the phosphating coating 31001 is fixedly connected with an electrophoretic paint coating 31002, the upper end surface of the electrophoretic paint coating 31002 is fixedly connected with a galvanized coating 31003, and the upper end surface of the fixing ring 301 is clamped with a spring The support plate 303 and the spring support plate 303 are provided with first circular through holes 306 on the surrounding surfaces away from the center, and the upper surfaces of the plurality of first circular through holes 306 are penetrated by fixers 308, the upper surface of the fixing ring 301 away from the center is fixedly connected with fixing columns 304, and the upper surfaces of the plurality of fixing columns 304 are provided with circular grooves 305, a second circular through hole 307 is provided at the center of the upper surface of the spring support plate 303, and the upper surfaces of the plurality of fixers 308 are fixedly connected with handles 309.

[0034] By fixing a protective coating 310 around the surface of the return spring body 302, the hardness and wear resistance of the return spring body 302 can be improved by the action of the phosphating coating 31001 in the protective coating 310, and a uniform and dense paint film can be formed on the surface of the return spring body 302 by the action of the electrophoretic paint coating 31002, and the fatigue resistance of the return spring body 302 can be improved by the action of the galvanized coating 31003, and the fixing ring 301 and the spring support plate 303 are clamped together by the mutual cooperation of the fixing column 304 and the first circular through hole 306, and the connection strength of the fixing ring 301 and the spring support plate 303 is provided by the mutual cooperation of the circular groove 305 and the fixer 308.

[0035] Working principle: Because the return spring body 302 itself is fixed in the fixing ring 301, the fixing ring 301 and the spring support plate 303 are clamped together under the action of the fixing column 304 and the first circular through hole 306, and then the connection strength between the fixing ring 301 and the spring support plate 303 is improved by the action of the circular groove 305 and the fixer 308, and then the elastic ring 6 is clamped together with the outer gear hub 5, and the outer gear hub 5 is meshed with two of the wet oil-based friction plates 4, and then the return spring mechanism 3 is clamped together with another wet oil-based friction plate 4, and then the return spring mechanism 3 is clamped into the inner gear hub 1. In this way, all the components are combined together.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual clutch return spring assembly, comprising an internal gear hub (1), characterized in that: A return spring mechanism (3) is clamped on one side surface of the inner gear hub (1), the return spring mechanism (3) comprises a fixing ring (301), a return spring body (302) is fixedly connected to the inside of the fixing ring (301) on all sides, a protective coating (310) is fixedly connected to the outer surface of the return spring body (302) on all sides, the protective coating (310) comprises a phosphating coating (31001), an electrophoretic paint coating (31002) is fixedly connected to the upper end surface of the phosphating coating (31001), and a galvanized coating (31003) is fixedly connected to the upper end surface of the electrophoretic paint coating (31002); The upper surface of the fixing ring (301) is clamped with a spring support plate (303), and the spring support plate (303) is provided with first circular through holes (306) on the surrounding surfaces away from the center, and a plurality of fixers (308) are provided through the upper surfaces of the first circular through holes (306).

2. A dual clutch return spring assembly according to claim 1, characterized in that: A connecting pipe (2) is fixedly connected at the center of one side surface of the inner gear hub (1).

3. A dual clutch return spring assembly according to claim 1, characterized in that: A plurality of wet oil-based friction plates (4) are clamped and arranged on one side surface of the return spring mechanism (3).

4. A dual clutch return spring assembly according to claim 3, characterized in that: An external gear hub (5) is meshedly arranged around the inner wall of the plurality of wet oil-based friction plates (4), and an elastic retaining ring (6) is clamped and arranged on one side surface of the external gear hub (5).

5. The dual clutch return spring assembly according to claim 1, characterized in that: The upper end of the fixing ring (301) is fixedly connected to the surface at a point away from the center with fixing columns (304) all around, and the upper end surfaces of the fixing columns (304) are provided with circular grooves (305).

6. A dual clutch return spring assembly according to claim 1, characterized in that: A second circular through hole (307) is provided at the center of the upper end surface of the spring support plate (303).

7. The dual clutch return spring assembly according to claim 1, characterized in that: A handle (309) is fixedly connected to the upper end surface of the plurality of fixers (308).

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