Novel driven wheel assembly of gasoline engine clutch

Abstract

The utility model provides a novel driven wheel assembly of a gasoline engine clutch, and belongs to the technical field of machinery. The driven wheel assembly solves the problems that an existing driven wheel assembly of a clutch is poor in heat dissipation effect, low in structural strength and short in service life. The novel driven wheel assembly of the gasoline engine clutch comprises a driven sleeve, a fixed disc, a sliding disc, a spring and a spring seat are coaxially and sequentially arranged on the driven sleeve, the fixed disc is fixedly connected with one end of the driven sleeve, the spring seat is fixedly connected with the other end of the driven sleeve, the driven sleeve is sleeved with the spring, and the two ends of the spring abut against the spring seat and the sliding disc respectively. The inner end faces of the fixed disc and the sliding disc are conical faces, the sliding sleeve can move towards one side of the spring seat and is in transmission with the spring seat, the fixed disc is of an aluminum alloy integrally-formed structure, and fan blades are evenly distributed on the outer end face of the fixed disc. The novel driven wheel assembly of the gasoline engine clutch has the advantages of being good in heat dissipation effect, high in structural strength and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a clutch, in particular to a novel driven wheel assembly of a gasoline engine clutch. Background Art

[0002] The continuously variable clutch is an important component of the vehicle power system. It realizes the clutch and automatic continuously variable speed change of the transmission system through the change of engine speed. When the engine crankshaft rotates, the driving wheel drives the driven wheel to rotate through the transmission belt, and the friction centrifugal shoe rotates synchronously with the driven wheel. Since the centrifugal force of the friction centrifugal shoe is less than the tension of the separation tension spring, the friction centrifugal shoe does not open and contact with the friction disk, and the rolling bearing and needle bearing in the driven wheel cut off the transmission between the driven wheel and the engine main shaft. At this time, the engine main shaft does not rotate, that is, it is in a transmission separation state; as the engine crankshaft speed increases, the driven wheel speed also increases. When the centrifugal force generated by the friction centrifugal shoe exceeds the tension of the separation tension spring, the friction centrifugal shoe opens and engages with the friction disk assembly, and the friction disk assembly drives the engine main shaft through the spline connection to achieve torque output. When the engine crankshaft speed changes further, the centrifugal thrust generated by the centrifugal roller in the driving wheel and the elastic force of the compression spring in the driven wheel balance each other to achieve the change of the working diameter of the transmission belt on the driving wheel and the driven wheel, thereby achieving the purpose of continuously variable speed change.

[0003] For example, a gasoline engine clutch disclosed in a Chinese patent document (application number: 201721081961.5) includes a housing, an active sleeve and a driven sleeve. The active sleeve is provided with a driving wheel assembly, the driven sleeve is provided with a driven wheel assembly, and a transmission belt is provided between the driving wheel assembly and the driven wheel assembly. An upper spring seat is coaxially fixedly connected to one end of the driven sleeve, and a lower spring seat is coaxially fixedly connected to the outer end of the auxiliary sliding plate. A spring three is provided between the upper spring seat and the lower spring seat, and a plurality of cams are fixedly connected to one end of the lower spring seat. A plurality of flanges corresponding to the cams are provided at one end of the upper spring seat, and the spring three pushes the upper spring seat to disengage the cam from the corresponding flange. However, the driven wheel of the clutch is not provided with a fan blade for heat dissipation, so the heat dissipation effect is not good. At the same time, the driven sleeve assembly is assembled by stamping and welding, so its structural strength is not high and its service life is not long. Summary of the invention

[0004] The utility model aims to solve the above problems in the prior art and proposes a new driven wheel assembly of a gasoline engine clutch with good heat dissipation effect, high structural strength and long service life.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a new driven wheel assembly of a gasoline engine clutch, including a driven sleeve, on which a fixed plate, a sliding plate, a spring and a spring seat are coaxially arranged in sequence, the fixed plate is fixedly connected to one end of the driven sleeve, and is characterized in that the spring seat is fixedly connected to the other end of the driven sleeve, the spring sleeve is arranged on the driven sleeve and the two ends of the spring are respectively against the spring seat and the sliding plate, the inner end surfaces of the fixed plate and the sliding plate are conical surfaces, the sliding plate can move to one side of the spring seat and transmit power to the spring seat, the fixed plate adopts an aluminum alloy one-piece molding structure, and the outer end surface of the fixed plate is evenly distributed with fan blades.

[0006] The clutch includes a driving wheel assembly and a driven wheel assembly, which are connected to each other through a belt drive, and the belt sleeve is arranged between the fixed plate and the sliding plate. When the speed of the driving wheel is set, the driving wheel of the clutch drives the sliding plate to overcome the elastic force of the spring and move toward the spring seat, so that the sliding plate and the spring seat are driven, and the belt passes through the friction of the fixed plate and the sliding plate to transfer the power of the driving wheel to the driven sleeve; when the speed of the driving wheel does not reach the set speed, the driving wheel of the clutch cannot drive the pulley to push the sliding plate to overcome the elastic force of the spring. At this time, the sliding plate and the spring seat are in a separated state, and the power of the driving wheel cannot be transferred to the driven sleeve. Since the fixed plate adopts an aluminum alloy one-piece molding structure, the outer end surface of the fixed plate is evenly distributed with fan blades, which has the advantages of good heat dissipation effect, high structural strength and long service life.

[0007] In the novel driven wheel assembly of the gasoline engine clutch, the sliding plate is made of an aluminum alloy integrally formed structure. With the above arrangement, the sliding plate has the advantages of high structural strength and long service life.

[0008] In the novel driven wheel assembly of the gasoline engine clutch, one end of the driven sleeve has a flange, the fixed disc abuts against the flange, and the flange and the fixed disc are fixedly connected by screws. The screws are fixedly connected to the fixed disc and the driven sleeve through the flange, which has the advantages of firm connection and compact structure.

[0009] In the novel driven wheel assembly of the gasoline engine clutch, the outer end surface of the sliding plate is provided with reinforcing ribs, which increases the strength of the sliding plate and prolongs its service life.

[0010] In the new driven wheel assembly of the gasoline engine clutch, the outer end surface of the sliding plate is provided with a plurality of mounting protrusions, the outer end of the mounting protrusion is provided with a cam body, the inner end of the spring seat is provided with a plurality of flanges, the flanges are provided with arc surfaces, and the outer end surface of the cam body abuts against the corresponding arc surface. When the speed of the driving wheel is set, the driving wheel of the clutch drives the sliding plate to overcome the elastic force of the spring and move toward the spring seat, so that the cam body abuts against the corresponding arc surface, so that the belt drives the driven wheel assembly to rotate, and the power of the driving wheel is transmitted to the driven sleeve; when the speed of the driving wheel does not reach the set speed, the sliding plate and the spring seat are in a separated state, and the power of the driving wheel cannot be transmitted to the driven sleeve.

[0011] In the novel driven wheel assembly of the gasoline engine clutch, a flat key is provided between the driven sleeve and the spring seat, a retaining spring is clamped on the outer wall of the driven sleeve, the retaining spring is located on the outer side of the spring seat and the spring seat abuts against the retaining spring. The above arrangement is used to position the spring seat and the driven sleeve, which has the advantages of good positioning effect, simple structure and convenient assembly and disassembly.

[0012] In the novel driven wheel assembly of the gasoline engine clutch, the outer end of the mounting convex body has a positioning groove, the positioning groove matches the cam body and the inner end of the cam body is embedded in the positioning groove. The cam body is embedded in the positioning groove of the mounting convex body, which has the advantages of good positioning effect and convenient disassembly and assembly.

[0013] In the novel driven wheel assembly of the gasoline engine clutch, the fan blade is arc-shaped.

[0014] In the novel driven wheel assembly of the gasoline engine clutch, a shaft sleeve is provided between the sliding disc and the driven sleeve, so that the sliding disc can rotate relative to the driven sleeve.

[0015] Compared with the prior art, the novel driven wheel assembly of the gasoline engine clutch has the following advantages:

[0016] 1. Since the fixed plate adopts an aluminum alloy one-piece structure, the outer end surface of the fixed plate is evenly distributed with fan blades, which has the advantages of good heat dissipation effect, high structural strength and long service life;

[0017] 2. The screws connect the fixed plate and the driven sleeve through the flange, which has the advantages of firm connection and compact structure;

[0018] 3. The cam body is embedded in the positioning groove of the mounting convex body, which has the advantages of good positioning effect and convenient disassembly and assembly;

[0019] 4. A shaft sleeve is provided between the sliding plate and the driven sleeve, so that the sliding plate can rotate relative to the driven sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a novel driven wheel assembly of the gasoline engine clutch.

[0021] Figure 2 It is a three-dimensional schematic diagram from another angle of the novel driven wheel assembly of the gasoline engine clutch.

[0022] Figure 3 It is a cross-sectional schematic diagram of a novel driven wheel assembly of the gasoline engine clutch.

[0023] In the figure, 1, driven sleeve; 1a, flange; 2, fixed plate; 2a, fan blade; 3, sliding plate; 3a, reinforcing rib; 3b, mounting convex body; 3c, positioning groove; 4, spring; 5, spring seat; 5a, flange; 5b, arc surface; 6, conical surface; 7, screw; 8, cam body; 9, retaining spring; 10, sleeve. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figures 1 to 3 As shown, a new driven wheel assembly of a gasoline engine clutch comprises a driven sleeve 1, on which a fixed plate 2, a sliding plate 3, a spring 4 and a spring seat 5 are coaxially arranged in sequence, the fixed plate 2 is fixedly connected to one end of the driven sleeve 1, the spring seat 5 is fixedly connected to the other end of the driven sleeve 1, the spring 4 is sleeved on the driven sleeve 1 and the two ends of the spring 4 are respectively against the spring seat 5 and the sliding plate 3, the inner end surfaces of the fixed plate 2 and the sliding plate 3 are conical surfaces 6, the sliding plate 3 can move to one side of the spring seat 5 and transmit power to the spring seat 5, the fixed plate 2 adopts an aluminum alloy one-piece molding structure, and the outer end surface of the fixed plate 2 is evenly distributed with fan blades 2a, and the fan blades 2a are arc-shaped.

[0026] The sliding plate 3 adopts an aluminum alloy integrally formed structure, so that the sliding plate 3 has the advantages of high structural strength and long service life. The outer end surface of the sliding plate 3 is provided with a reinforcing rib 3a, which increases the strength of the sliding plate 3 and improves the service life.

[0027] One end of the driven sleeve 1 has a flange 1a, the fixed plate 2 abuts against the flange 1a, and the flange 1a and the fixed plate 2 are fixedly connected by screws 7, which has the advantages of firm connection and compact structure.

[0028] The outer end surface of the sliding plate 3 is provided with a plurality of mounting protrusions 3b, and the outer end of the mounting protrusion 3b has a positioning groove 3c, and the positioning groove 3c is embedded with a cam body 8, which has the advantages of good positioning effect and convenient disassembly and assembly. The inner end of the spring seat 5 is evenly provided with a plurality of flange portions 5a, and the flange portions 5a are all provided with arc surfaces 5b, and the outer end surface of the cam body 8 abuts against the corresponding arc surface 5b.

[0029] A flat key is provided between the driven sleeve 1 and the spring seat 5, and a retaining spring 9 is clamped on the outer wall of the driven sleeve 1. The retaining spring 9 is located on the outer side of the spring seat 5 and the spring seat 5 rests on the retaining spring 9, so that the spring seat 5 and the driven sleeve 1 are positioned, which has the advantages of good positioning effect, simple structure and easy disassembly and assembly.

[0030] A shaft sleeve 10 is provided between the sliding plate 3 and the driven sleeve 1 , so that the sliding plate 3 can rotate relative to the driven sleeve 1 .

[0031] The clutch includes a driving wheel assembly and a driven wheel assembly, and the driving wheel assembly and the driven wheel assembly are connected by a belt drive, and the belt sleeve is arranged between the fixed plate 2 and the sliding plate 3. When the speed of the driving wheel is set, the driving wheel of the clutch drives the sliding plate 3 to overcome the elastic force of the spring 4 and move toward the spring seat 5, so that the cam body 8 abuts against the corresponding arc surface 5b, so that the sliding plate 3 and the spring seat 5 are driven, and the belt passes through the friction of the fixed plate 2 and the sliding plate 3 to transmit the power of the driving wheel to the driven sleeve 1; when the speed of the driving wheel does not reach the set speed, the driving wheel of the clutch cannot drive the belt pulley to push the sliding plate 3 to overcome the elastic force of the spring 4. At this time, the sliding plate 3 and the spring seat 5 are in a separated state, and the power of the driving wheel cannot be transmitted to the driven sleeve 1. Since the fixed plate 2 adopts an aluminum alloy integral molding structure, the outer end surface of the fixed plate 2 is evenly distributed with fan blades 2a, which has the advantages of good heat dissipation effect, high structural strength and long service life.

[0032] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0033] Although this article uses more terms such as driven sleeve 1, flange 1a, fixed plate 2, fan blade 2a, sliding plate 3, reinforcing rib 3a, mounting convex body 3b, positioning groove 3c, spring 4, spring seat 5, flange 5a, arc surface 5b, conical surface 6, screw 7, cam body 8, retaining spring 9, sleeve 10, etc., it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A novel driven wheel assembly for a gasoline engine clutch, comprising a driven sleeve (1), wherein a fixed plate (2), a sliding plate (3), a spring (4) and a spring seat (5) are coaxially arranged in sequence on the driven sleeve (1), wherein the fixed plate (2) is fixedly connected to one end of the driven sleeve (1), and wherein: The spring seat (5) is fixedly connected to the other end of the driven sleeve (1); the spring (4) is sleeved on the driven sleeve (1) and the two ends of the spring (4) respectively abut against the spring seat (5) and the sliding plate (3); the inner end surfaces of the fixed plate (2) and the sliding plate (3) are conical surfaces (6); the sliding plate (3) can move toward the spring seat (5) and transmit transmission with the spring seat (5); the fixed plate (2) adopts an aluminum alloy integrally formed structure; the outer end surface of the fixed plate (2) is evenly distributed with fan blades (2a); the outer end surface of the sliding plate (3) is provided with a plurality of mounting protrusions (3b); the outer end of the mounting protrusion (3b) is provided with a cam body (8); the inner end of the spring seat (5) is evenly provided with a plurality of flange portions (5a); the flange portions (5a) are each provided with an arc surface (5b); and the outer end surface of the cam body (8) abuts against the corresponding arc surface (5b).

2. The novel driven wheel assembly of the gasoline engine clutch according to claim 1 is characterized in that: The sliding plate (3) is an aluminum alloy integrally formed structure.

3. The novel driven wheel assembly of the gasoline engine clutch according to claim 1 is characterized in that: One end of the driven sleeve (1) is provided with a flange (1a), the fixed plate (2) abuts against the flange (1a), and the flange (1a) and the fixed plate (2) are fixedly connected via screws (7).

4. The novel driven wheel assembly of the gasoline engine clutch according to claim 1, 2 or 3, characterized in that: The outer end surface of the sliding plate (3) is provided with reinforcing ribs (3a).

5. The novel driven wheel assembly of the gasoline engine clutch according to claim 1, 2 or 3, characterized in that: A flat key is provided between the driven sleeve (1) and the spring seat (5); a retaining spring (9) is clamped on the outer wall of the driven sleeve (1); the retaining spring (9) is located on the outer side of the spring seat (5) and the spring seat (5) abuts against the retaining spring (9).

6. The novel driven wheel assembly of the gasoline engine clutch according to claim 1 is characterized in that: The outer end of the mounting protrusion (3b) has a positioning groove (3c), the positioning groove (3c) matches the cam body (8) and the inner end of the cam body (8) is embedded in the positioning groove (3c).

7. The novel driven wheel assembly of a gasoline engine clutch according to claim 1, 2 or 3, characterized in that: The fan blade (2a) is arc-shaped.

8. The novel driven wheel assembly of a gasoline engine clutch according to claim 1, 2 or 3, characterized in that: A shaft sleeve (10) is provided between the sliding plate (3) and the driven sleeve (1).

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