TWM499489U - Outer cover for clutch - Google Patents

Description

Clutch cover

The present invention relates to a clutch cover, and more particularly to a clutch cover having a muffler ring.

The locomotive shifting system of the stepless speed change locomotive includes a shifting disc, a drive disc, a belt and a clutch. The shifting disc is connected to an engine. The belt connects the shifting disk to the drive plate. The clutch includes a plurality of clutch blocks and a clutch cover body, and the clutch blocks are disposed inside the clutch cover body and are in contact with the drive plate. Wherein, the clutch cover body has a plurality of heat dissipation holes; in use, the clutch cover body and one of the rear wheels of the locomotive, the engine is actuated by the engine, and the transmission plate is coupled to the drive plate by the belt. Rotating the plurality of clutch blocks to frictionally dissipate the clutch cover body to rotate the rear wheel of the locomotive.

However, two problems occur when the clutch cover body rotates to rotate the clutch cover body. First, the generated high temperature is only discharged through the heat dissipation holes, and the heat dissipation effect is poor, so that the clutch cover body is easy. Deformed by high temperature, reducing mechanical efficiency and service life; second, generating disturbing noise. In this regard, the conventional outer side of the clutch cover body is provided with a ring of silencer rings to improve the above problems.

However, the conventional clutch cover has a problem of poor fixing effect on the structure, as explained below:

The first conventional clutch cover is formed by welding and fixing the body and the muffler ring, for example, as disclosed in the first and second figures of the Republic of China No. M477433. However, the seams of the body and the muffler ring will produce traces of welding, which is not aesthetically pleasing; in addition, the body and the muffler ring need to be compatible materials of the same nature, so that the metal materials that the body and the muffler ring can use are limited, and When the welded outer cover of the clutch is rotated at a high speed, the welded portion may be broken to cause the muffler ring to slip out of the body and fall off. Another example of the use of welding is disclosed in Figure 3, No. M418994 of the Republic of China, in which the weld is broken, so that the muffler ring slips out of the body and falls off.

The second conventional clutch cover uses a fastener such as a screw, a rivet or a rivet to lock the muffler ring to the body, such as those disclosed in Figures 3 to 9 of the Republic of China, New Patent No. M477433. Although the fastening and fixing effect of the fastener is excellent, the body and the muffler ring need to accurately process the corresponding screw holes, which is very difficult to process, and the cost is naturally high.

A third conventional clutch cover is directly engaged by the outer surface of the body and the inner surface of the muffler ring, such as disclosed in the Republic of China, New Patent No. M423764. However, since both the outer surface of the body and the inner surface of the muffler ring are smooth surfaces, the fixing effect is poor, and the outer cover is easily slid out of the body and detached under long-term high-speed rotation.

The fourth conventional clutch cover is such that the joints are affixed directly to the engagement portions of the body in a mold-injecting manner, such as disclosed in the Republic of China, New Patent No. M410814. However, the muffler ring is made of plastic or rubber, the body is made of metal, and the thermal expansion coefficient of the plastic or rubber is higher than the thermal expansion coefficient of the metal, so the plastic or rubber muffler is deformed to a greater extent than the body at high temperatures. The fixation effect with the body will be worse, so that The muffler ring easily slips out of the body and falls off. Moreover, the thermal conductivity of the plastic or rubber is lower than the thermal conductivity of the metal, so the cooling effect of the muffler ring is poor.

A fifth conventional clutch cover is secured by an external thread of the outer surface of the annular wall of the body and an internal thread of the inner surface of the muffler ring. For example, the Republic of China new patent No. M366621 is disclosed. However, the muffler ring is detachable, so that under high-speed rotation, it gradually looses and slides out of the body to fall off.

The main purpose of the present invention is to provide a clutch cover, wherein the inner sides of the first and second outer ring protrusions of the muffler ring respectively abut against the outer sides of the first and second outer ring edges of the body, and the combined fixing effect is good to prevent silencing. The ring slides out of the body.

The second purpose of the present invention is to provide a clutch cover, the outer surface of the muffler ring forming a ring groove, thereby improving the heat dissipation area and weight reduction.

In order to achieve the foregoing objectives, the present invention will provide a clutch cover including a body and a muffler ring.

The body includes a ring wall, and an outer surface of the ring wall of the body defines a first outer ring edge and a second outer ring edge.

The muffling ring includes a first outer ring protrusion and a second outer ring protrusion and a perforation. The first and second outer ring protrusions respectively extend radially into the perforation, and the body is disposed on the perforation of the muffler ring. And the inner sides of the first and second outer ring protrusions of the muffler ring respectively abut against the outer sides of the first and second outer ring edges of the outer surface of the ring wall of the body.

According to a preferred embodiment, the first outer ring protrusion projects radially from the inner surface of the sound attenuating ring. Preferably, the muffler ring includes a first end and a second end, and the first end of the muffler ring The outer diameter tapers axially away from the second end of the muffling ring, the first outer ring convexly projecting radially from the inner surface of the first end of the muffler ring. The body includes a top cover, and the top cover is disposed at one end of the ring wall, and the first outer ring edge of the ring wall is located on a side of the ring wall adjacent to the top cover, and the second outer ring edge of the ring wall is located The ring wall is remote from the side of the top cover.

According to a preferred embodiment, the second outer ring projection projects radially from the inner surface of the sound attenuating ring. Preferably, the muffler ring includes a first end and a second end, the second outer ring projecting radially from the inner surface of the second end of the muffler ring.

According to a preferred embodiment, the outer surface of the annular wall of the body forms a plurality of inner rims, the inner rims being located between the first and second outer rims, between the inner rims and the first A groove is formed between the second outer ring edge and the adjacent inner ring edge.

According to a preferred embodiment, the outer surface of the sound absorbing ring forms a plurality of annular grooves.

According to a preferred embodiment, the body and the sound absorbing ring are made of metal. Preferably, the sound absorbing ring is made of aluminum or aluminum alloy.

The effect of the creation is that the muffler ring is tightly combined with the ring wall fixed to the body, and does not slip off from the ring wall of the body, and the muffler ring can maintain the effect of preventing deformation of the body, further improving the mechanical efficiency and life of the body. It also has a good noise reduction effect by reducing the vibration force, and it is not necessary to process any screw holes on the body and the muffler ring, and the cost is low. Furthermore, the outer surface of the muffler ring forms the ring grooves to improve the heat dissipation area and weight reduction.

10‧‧‧ Ontology

11‧‧‧Top cover

12‧‧‧Circle

121‧‧‧First outer ring

122‧‧‧Second outer ring

123‧‧‧ Inner Ring

124‧‧‧ Groove

20‧‧‧Muffling ring

21‧‧‧ first end

22‧‧‧ second end

23‧‧‧First outer ring convex

24‧‧‧Second outer ring convex

25‧‧‧Perforation

26‧‧‧ Ring groove

The first picture is a perspective view of the clutch cover of the creation.

The second picture is an exploded view of the clutch cover of the present creation.

The third figure is a cross-sectional view of the clutch cover of the present invention.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Referring to Figures 1 to 3, the present invention provides a clutch cover including a body 10 and a muffler ring 20.

The body 10 includes a top cover 11 and a ring wall 12. The top cover 11 is disposed at one end of the ring wall 12. The structure of the top cover 11 is conventional and will not be described. The outer surface of the annular wall 12 of the body 10 defines a first outer rim 121, a second outer rim 122, and a plurality of inner rims 123. The first outer rim 121 is located on a side of the ring wall 12 adjacent to the top cover 11 , and the second outer rim 122 is located on a side of the ring wall 12 away from the top cover 11 . The inner rim 123 is located between the first and second outer rims 121, 122. A groove 124 is formed between the inner ring edges 123 and between the first and second outer ring edges 121 and 122 and the adjacent inner ring edge 123, that is, the ring wall of the body 10 The outer surface of 12 is formed with a plurality of grooves 124. The components of the other clutches provided inside the body 10 are conventional and are not described herein or illustrated in the drawings. The material of the body is metal.

The sound absorbing ring 20 includes a first end 21, a second end 22, a first outer ring protrusion 23 and a second outer ring protrusion 24 and surrounds a through hole 25. The outer diameter of the first end 21 of the muffler ring 20 is tapered axially away from the second end 22 of the muffling ring 20, the first outer ring protrusion 23 radially protruding from the muffler ring 20 The inner surface of one end 21 extends into the perforation 25. The second outer ring projection 24 projects radially into the inner surface of the second end 22 of the muffling ring 20 and extends into the perforation 25. The outer surface of the muffler ring 20 forms a plurality of annular grooves 26. The body 10 is disposed in the through hole 25 of the muffler ring 20, and the muffling The inner sides of the first and second outer ring projections 23, 24 of the ring 20 abut against the outer sides of the first and second outer ring edges 121, 122 of the outer surface of the annular wall 12 of the body 10, respectively. In this embodiment, the inner side of a portion of the first outer ring protrusion 23 of the muffling ring 20 abuts against the outer side of the first outer ring edge 121 of the outer surface of the ring wall 12 of the body 10, the muffling ring 20 The outermost end of the first outer ring projection 23 is flush with the outer surface of the ring wall 12 of the body 10, as shown in the third figure. In other embodiments, the entire inner side of the first outer ring protrusion 23 of the muffling ring 20 abuts against the outer side of the first outer ring edge 121 of the outer surface of the ring wall 12 of the body 10, that is, the muffler ring The inner side of the outermost end of the first outer ring projection 23 of 20 is also the outer side of the first outer ring edge 121 that abuts against the outer surface of the ring wall 12 of the body 10. The material of the muffler ring 20 is metal. Preferably, the sound absorbing ring 20 is made of aluminum or an aluminum alloy.

The muffler ring 20 of the clutch cover of the present invention passes through the inner sides of the first and second outer ring protrusions 23, 24 respectively against the first and second outer ring edges 121 of the outer surface of the ring wall 12 of the body 10. , the outer side of 122. Thereby, the muffling ring 20 is tightly coupled to the ring wall 12 fixed to the body 10, does not slide out from the ring wall 12 of the body 10, and the muffling ring 20 is maintained to prevent deformation of the body 10. The utility model further improves the mechanical performance and the life of the body 10, and does not need to machine any screw holes on the body 10 and the muffler ring 20. The body 10 and the muffler ring 20 are easy to process and cost-effective.

Moreover, since the combination fixing effect of the body 10 and the muffling ring 20 is better than that of the prior art, the vibration force of the body 10 to the muffler ring 20 is smaller than that of the prior art, so that the pinion ring 20 has good muffling. The effect is that the clutch cover produces less noise when in use.

Further, the outer surface of the muffler ring 20 forms the annular grooves 26. Thereby, the muffler ring 20 has a large heat dissipation area and has an excellent heat dissipation effect and can also achieve a lightweight effect. It is worth mentioning that the muffler ring 20 made of aluminum or aluminum alloy is lightly matched with the ring grooves 26. The quantification effect is even better.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any form of limitation on the creation, so that any modification or alteration of the creation made in the same creative spirit is provided. , should still be included in the scope of protection of this creative intent.

10‧‧‧ Ontology

11‧‧‧Top cover

12‧‧‧Circle

121‧‧‧First outer ring

122‧‧‧Second outer ring

123‧‧‧ Inner Ring

124‧‧‧ Groove

20‧‧‧Muffling ring

21‧‧‧ first end

22‧‧‧ second end

23‧‧‧First outer ring convex

24‧‧‧Second outer ring convex

26‧‧‧ Ring groove

Claims (10)

A clutch cover comprising: a body comprising a ring wall, an outer surface of the ring wall forming a first outer ring edge and a second outer ring edge; and a muffler ring including a first outer ring protrusion a second outer ring is convex and surrounds a perforation, and the first and second outer ring protrusions respectively extend radially into the through hole, the body is disposed in the through hole of the muffler ring, and the first and the second of the muffler ring The inner sides of the two outer ring protrusions respectively abut against the outer sides of the first and second outer ring edges of the outer surface of the ring wall of the body. The clutch outer cover of claim 1, wherein the first outer ring protrusion protrudes radially from an inner surface of the sound absorbing ring. The clutch cover of claim 2, wherein the muffler ring comprises a first end and a second end, the outer end of the muffler ring having an outer diameter facing away from the second end of the muffler ring Tapering toward the ground, the first outer ring protrusion projects radially from the inner surface of the first end of the muffler ring. The clutch cover of claim 3, wherein the body comprises a top cover, the top cover is disposed at one end of the ring wall, and the first outer ring edge of the ring wall is located at the ring wall adjacent to the top cover On one side, the second outer rim of the ring wall is located on a side of the ring wall away from the top cover. The clutch outer cover of claim 1, wherein the second outer ring protrudes radially from an inner surface of the sound absorbing ring. The clutch cover of claim 5, wherein the muffling ring comprises a first end and a second end, the second outer ring projecting radially from the inner surface of the second end of the muffler ring . The clutch outer cover of claim 1, wherein an outer surface of the annular wall of the body forms a plurality of inner rims, the inner rims being located between the first and second outer rims, A groove is formed between the rims and between the first and second outer rims and the adjacent inner rims. The clutch cover of claim 1, wherein the outer surface of the muffler ring forms a plurality of ring grooves. The clutch cover of claim 1, wherein the body and the sound absorbing ring are made of metal. The clutch cover of claim 9, wherein the sound absorbing ring is made of aluminum or aluminum alloy.