CN110966314A

CN110966314A - Cooling device for clutch and clutch

Info

Publication number: CN110966314A
Application number: CN201911209357.XA
Authority: CN
Inventors: 马倩; 蒋治彬; 刁艳
Original assignee: Zhongshan Huanya Automobile Technology Co ltd
Current assignee: CHONGQING DINGRAN INDUSTRY AND TRADE Co.,Ltd.
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-04-07
Anticipated expiration: 2039-11-30
Also published as: CN110966314B

Abstract

The invention discloses a cooling device for a clutch and the clutch, wherein the cooling device comprises a first heat exchange disc and a second heat exchange disc which are arranged at intervals, the first heat exchange disc is in close contact with a flywheel of the clutch, an annular heat conduction pipe communicated with a cavity in the first heat exchange disc is arranged in a gap between the first heat exchange disc and the second heat exchange disc, a plurality of arc-shaped guide pipes communicated with the annular heat conduction pipe are uniformly distributed on the outer side of the annular heat conduction pipe, a supporting liquid guide column is arranged at the outer side end part of each arc-shaped guide pipe, a communication column is arranged between the first heat exchange disc and the second heat exchange disc, a liquid feeding mechanism capable of driving heat conduction liquid to flow into the first heat exchange disc through the supporting liquid guide column is arranged in the second heat exchange disc, and a driving mechanism capable of driving the liquid feeding mechanism to work by the rotation of the flywheel is arranged on a shell of the clutch. The invention can quickly dissipate heat generated in the working process of the clutch, thereby effectively avoiding the friction plate from being damaged due to overhigh temperature and ensuring the best transmission effect.

Description

Cooling device for clutch and clutch

Technical Field

The invention relates to the technical field of automobile clutches, in particular to a cooling device for a clutch, and further relates to a clutch comprising the cooling device.

Background

The clutch is a component directly connected with the engine in the automobile transmission system, is responsible for the cutting-off and combining action of power and the transmission system, can ensure the stable starting of the automobile when starting, can also ensure the smooth operation when shifting gears, and prevents the overload of the transmission system.

The clutch is a transmission mechanism which has a driving part and a driven part, wherein the driving part and the driven part can be separated temporarily or combined slowly, and relative rotation can be generated in the transmission process, so that torque can be transmitted between a driving part and a driven part of the clutch by means of contact friction, or the torque can be transmitted by means of pressing force required by friction, or liquid serving as a transmission medium, or magnetic transmission and the like. Friction clutches that are pressed by springs are widely used in motor vehicles.

Friction between the friction plates and the flywheel and pressure plate occurs during the clutch from disengagement to engagement, and a large amount of heat is generated during the slow increase in speed of the driven portion, particularly during the initial engagement. The heat needs to be dissipated in time to avoid damage to the friction plate due to excessive temperature. In the prior art, heat dissipation is mainly performed by arranging heat dissipation holes, but the heat dissipation mode is low in efficiency and low in speed, and the current requirements are difficult to meet.

Thus, further improvements are needed in the existing clutches.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a cooling device for a clutch, which can quickly dissipate heat generated in the operation of the clutch, thereby effectively avoiding the damage of a friction plate due to overhigh temperature and ensuring the optimal transmission effect;

another object of the present invention is to provide a clutch comprising the above cooling device.

In order to achieve the above object, the present invention adopts the following means in a cooling device for a clutch:

a cooling device for a clutch comprises a first heat exchange plate and a second heat exchange plate which are arranged at intervals, wherein the first heat exchange plate is in close contact with a flywheel of the clutch, an annular heat conducting pipe communicated with the cavity in the first heat exchange disc is arranged in the gap between the first heat exchange disc and the second heat exchange disc, a plurality of arc-shaped conduits communicated with the annular heat-conducting pipes are uniformly distributed on the outer sides of the annular heat-conducting pipes, supporting liquid-conducting columns communicated with the second heat exchange discs are arranged on the outer side ends of the arc-shaped conduits, a communicating column for communicating the inner cavity of the first heat exchange plate with the inner cavity of the second heat exchange plate is arranged between the first heat exchange plate and the second heat exchange plate, a liquid feeding mechanism which can drive the heat-conducting liquid to flow into the first heat-exchanging disk through the supporting liquid-conducting column is arranged in the area corresponding to the supporting liquid-conducting column in the second heat-exchanging disk, a driving mechanism which enables a flywheel to rotate and drives the liquid feeding mechanism to work is arranged on a shell of the clutch.

As a further improvement of the liquid feeding mechanism in the cooling device, the liquid feeding mechanism comprises a partition area formed by a partition wall in a surrounding mode, an inlet for supporting the liquid guide column is arranged in the partition area, a liquid inlet is formed in the partition wall along the rotation direction of the flywheel, an impeller shaft is arranged in the partition area, the outer end of the impeller shaft extends out of the second heat exchange disc, an impeller is arranged at the inner end of the impeller shaft, the driving mechanism comprises a driving gear arranged at the outer end of the impeller shaft, an annular rack is arranged in the opening end of the shell, and the driving gear is meshed with the annular rack.

In order to achieve the above object, the present invention employs the following for a clutch:

the utility model provides a clutch, including the casing be equipped with first transmission shaft in the casing the movable sleeve is equipped with the flywheel on the first transmission shaft the cover is equipped with and can not combine or the separator of separation, its characterized in that for first transmission shaft pivoted clutch piece on the first transmission shaft, still including enabling clutch piece and flywheel to combine or separate: a cooling device is arranged on the outer side of the flywheel and comprises a first heat exchange disc and a second heat exchange disc which are arranged at intervals, the first heat exchange disc is in close contact with the flywheel, an annular heat conducting pipe communicated with the cavity in the first heat exchange disc is arranged in the gap between the first heat exchange disc and the second heat exchange disc, a plurality of arc-shaped conduits communicated with the annular heat-conducting pipes are uniformly distributed on the outer sides of the annular heat-conducting pipes, supporting liquid-conducting columns communicated with the second heat exchange discs are arranged on the outer side ends of the arc-shaped conduits, a communicating column for communicating the inner cavity of the first heat exchange plate with the inner cavity of the second heat exchange plate is arranged between the first heat exchange plate and the second heat exchange plate, a liquid feeding mechanism which can drive heat-conducting liquid to flow into the first heat-exchanging disk through the supporting liquid-conducting column is arranged in the area corresponding to the supporting liquid-conducting column in the second heat-exchanging disk, and a driving mechanism which can drive the liquid feeding mechanism to work is arranged on the shell by rotating a flywheel.

As another improvement of the clutch, two ends of the housing penetrate through the housing, the flywheel is arranged in the housing, a connecting frustum is arranged on the outer side of the flywheel, a connecting hole is arranged in the middle of the connecting frustum, the outer side surface of the connecting frustum is connected with the output end of the engine through a coupler, an installation slot hole is formed in the coupler, the first transmission shaft is movably arranged in the installation slot hole through a first bearing, a first connecting shaft sleeve capable of sliding along the axial direction of the first transmission shaft is arranged at the front end of the first transmission shaft, a limiting mechanism capable of preventing the first connecting shaft sleeve from rotating relative to the first transmission shaft is arranged between the first connecting shaft sleeve and the first transmission shaft, a clutch plate is sleeved on the outer side of the first connecting shaft sleeve, and a fluctuation eliminating mechanism is arranged between the clutch plate and the first connecting shaft sleeve.

As a further improvement of the separating device in the clutch, the separating device comprises a gland fixedly arranged at the inner side of the flywheel, a pressure plate is movably arranged in the gland, an elastic extrusion mechanism capable of pressing a clutch plate on the flywheel so as to enable the output end of the engine to synchronously rotate with the first transmission shaft is arranged between the gland and the pressure plate, a plurality of suspension arms are arranged in the gland along the circumferential direction, a driving pressure rod is hinged on the suspension arms through a first hinge shaft, one end of the driving pressure rod extends to the first transmission shaft, a hinge base is arranged at the position of the pressure plate corresponding to the other end of the driving pressure rod, the other end of the driving pressure rod is hinged on the hinge base through a second hinge shaft, a second shaft sleeve is sleeved at the rear end of the first transmission shaft, a third shaft sleeve is sleeved outside the second shaft sleeve, a limit convex ring is arranged on the outer wall of the third shaft sleeve, and a second bearing, one end face of the second bearing is abutted against the driving pressure rod, the outer wall of the third shaft sleeve on the other side of the limiting convex ring is provided with an extrusion seat, an extension spring is arranged between the outer wall of the third shaft sleeve and the second shaft sleeve, the gland is provided with a mounting hole, a rotary driving shaft is arranged in the mounting hole, one end of the rotary driving shaft extends out of the gland, the other end of the rotary driving shaft is provided with a driving pressing block, and the driving pressing block is abutted against the extrusion seat.

As another improvement of the clutch, a frustum groove is formed in the outer side of the flywheel, the first heat exchange disc is in a frustum shape, and the end face of the first heat exchange disc is flush with the end face of the flywheel after the first heat exchange disc is installed in the frustum groove.

As a further improvement of the elastic extrusion mechanism in the clutch, the elastic extrusion mechanism comprises four extrusion spring units which are uniformly distributed between the inner side of the gland and the inner side of the pressure plate, four trapezoidal openings are uniformly distributed on the outer side of the gland, an elastic sheet seat is arranged on the pressure plate in each trapezoidal opening, an elastic sheet is arranged on the elastic sheet seat, and one end of the elastic sheet is fixedly connected to the pressure cover.

As a further improvement of the clutch plate in the clutch, the clutch plate comprises a supporting steel sheet, friction plates are respectively arranged on two sides of the supporting steel sheet, a central hole is formed in the supporting steel sheet, the supporting steel sheet is movably sleeved outside the first connecting shaft sleeve, and a plurality of buffer grooves are uniformly distributed in the supporting steel sheet.

As a further improvement of the fluctuation eliminating mechanism in the clutch, the fluctuation eliminating mechanism comprises driving discs fixedly connected to first connecting shaft sleeves on the upper side and the lower side of the supporting steel sheet respectively, a connecting disc is arranged between one of the driving discs and the supporting steel sheet and connected with the supporting steel sheet through a supporting cushion block and a connecting nail, connecting grooves are arranged at the corresponding positions of the connecting disc, the driving discs and the buffer groove, connecting baffles are arranged in the connecting grooves and the buffer groove along the two sides in the circumferential direction respectively, and a buffer spring is arranged between the two connecting baffles.

As a further improvement of the shell in the clutch, the shell can comprise a first shell and a second shell, the first shell and the second shell are connected through screws or buckles, the outer wall of the first shell is symmetrically provided with connecting lug seats, the first shell is provided with a plurality of fixed connecting lug seats, and the bottom surface of the first shell is provided with air holes.

In summary, compared with the prior art, the invention has the beneficial effects that:

the cooling device effectively dissipates heat of the flywheel, can effectively prevent the friction plate from being damaged due to overhigh temperature, prolongs the service life of the clutch plate and ensures that the best transmission effect is obtained.

The elastic extrusion mechanism in the clutch is composed of four extrusion spring units and four elastic sheet mechanisms, so that a pressure plate is effectively pressed on the clutch plate, and the optimal transmission effect is ensured to be obtained;

third, in the clutch of the invention, a plurality of uniformly distributed suspension arms of the gland are respectively articulated with a driving pressure lever, the driving pressure lever can drive the third shaft sleeve to move downwards by driving the rotating driving shaft to rotate, so that the driving pressure lever presses downwards, the pressure plate overcomes the acting force of the elastic extrusion mechanism by utilizing the lever principle to separate the clutch plate from the flywheel, the driving is convenient, the stress is uniform, the driving pressure lever is adopted for transmission, compared with the diaphragm spring transmission adopted in the prior art, the diaphragm spring transmission can more effectively prevent the deformation caused by metal fatigue from influencing the use effect, the uniform stress is ensured, meanwhile, the problem that the diaphragm spring covers the clutch plate and hinders the heat dissipation is overcome, and the driving pressure lever transmission is adopted, so that the heat dissipation effect of the clutch plate;

drawings

FIG. 1 is a schematic view of a cooling apparatus according to the present invention in use;

FIG. 2 is a schematic view, partially in section, of a cooling device and clutch in accordance with the present invention;

FIG. 3 is a schematic view of a cooling apparatus of the present invention;

FIG. 4 is a schematic view of the internal structure of the second heat exchange plate of the present invention

FIG. 5 is a perspective view of the clutch of the present invention;

FIG. 6 is an exploded view of the clutch of the present invention;

FIG. 7 is a schematic view of the internal structure of the clutch of the present invention;

FIG. 8 is a second schematic diagram of the internal structure of the clutch of the present invention;

FIG. 9 is a cross-sectional view of the clutch plate of the present invention coupled to a first coupling sleeve.

In the figure: 13. a first bearing; 21. a housing; 2101. a first housing; 2102. a second housing; 2103. connecting the ear seat; 2104. fixedly connecting the ear seat; 2105. air holes are formed; 22. a flywheel; 23. connecting the frustum; 24. connecting holes; 25. a coupling; 251. a connecting ring; 26. mounting a slotted hole; 27. a first connecting sleeve; 271. a first connecting boss body; 272. a ring platform is externally connected; 28. a limiting mechanism; 281. a limiting groove; 282. limiting convex strips; 29. a clutch plate; 210. a fluctuation elimination mechanism; 211. a gland; 212. a platen; 213. an elastic extrusion mechanism; 214. a suspension arm; 2141. a boom base; 2142. connecting sheets; 2143. a boom shaft; 2144. a U-shaped boom frame; 2145. a locking member; 2146. a roller; 2147. locking the steel rope; 215. a first hinge shaft; 216. a drive strut; 217. a hinged seat; 218. a second hinge shaft; 219. a second shaft sleeve; 2191. a connecting ring seat; 220. a third shaft sleeve; 221. a limit convex ring; 222. a second bearing; 223. a pressing base; 224. a tension spring; 225. mounting holes; 226. a rotary drive shaft; 227. driving the pressing block; 228. a cooling device; 2281. a first heat exchange plate; 2282. a second heat exchange plate; 2283. an annular heat conducting pipe; 2284. an arcuate conduit; 2285. supporting the liquid guiding column; 2286. a liquid feeding mechanism; 2287. a drive mechanism; 22861. a partition wall; 22862. a liquid inlet; 22863. an impeller shaft; 22864. an impeller; 22865. a drive gear; 22866. an annular rack; 22867. a communication column; 229. a frustum groove; 2131. a pressing spring unit; 21311. an arc-shaped groove; 21312. a spring connecting seat; 21313. a support washer; 21314. pressing the spring; 2132. a trapezoidal opening; 2133. a spring plate seat; 2134. a spring plate; 291. a support steel sheet; 292. a friction plate; 293. connecting grooves; 294. a buffer tank; 295. a drive disc; 296. a connecting disc; 297. supporting the cushion block; 298. a connecting nail; 299. connecting a baffle plate; 2910. a buffer spring; 30. a first drive shaft; 301. and a positioning table.

Detailed Description

The invention will be further described with reference to the drawings and embodiments in the detailed description:

as shown in fig. 1-4 and 6, in the present invention, the cooling device 228 includes a first heat exchange plate 2281 and a second heat exchange plate 2282 which are arranged at intervals, the first heat exchange plate 2281 is in close contact with the flywheel 22, an annular heat conduction pipe 2283 which is communicated with the cavity in the first heat exchange plate 2281 is arranged in the gap between the first heat exchange plate 2281 and the second heat exchange plate 2282, a plurality of arc-shaped guide pipes 2284 which are communicated with the annular heat conduction pipe 2283 are uniformly distributed on the outer side of the annular heat conduction pipe 2283, and a cyclone groove is formed between the arc-shaped guide pipes 2284 and the first heat exchange plate 2281 and the second heat exchange plate 2282, so that the cooling device 228 and the flywheel 22 rotate synchronously to form an outward airflow, which not only increases the air flow inside the housing 21 and improves the overall heat dissipation efficiency; but also quickens the heat exchange between the arc-shaped conduit 2284 and the air, and effectively transfers the heat to the outside; be equipped with the support drain 2285 that communicates with second heat exchange disc 2282 on the end of arc pipe 2284 outside, be equipped with the intercommunication post 22867 of the inner chamber of intercommunication first heat exchange disc 2281 and the inner chamber of second heat exchange disc 2282 between first heat exchange disc 2281 and the second heat exchange disc 2282, be equipped with in second heat exchange disc 2282 and support the corresponding region of drain 2285 and can drive heat-conducting liquid and flow into liquid mechanism 2286 that send of first heat exchange disc 2281 through supporting drain 2285, be equipped with on gland 211 and drive mechanism 2287 that can drive send liquid mechanism 2286 work when flywheel 22 rotates. In the present invention, when the flywheel 22 rotates, the cooling device 228 rotates synchronously, and since the first heat exchanging disk 2281 and the second heat exchanging disk 2282 are disposed at an interval, and the internal cooling liquid can circulate among the first heat exchanging disk 2281, the supporting liquid guiding column 2285, the arc-shaped conduit 2284, the annular heat conducting pipe 2283, and the second heat exchanging disk 2282, a part of the heat transferred from the flywheel 22 by the first heat exchanging disk 2281 can be transferred to the second heat exchanging disk 2282 through the cooling liquid, and then dissipated to the outside of the housing 21 through the second heat exchanging disk 2282, and a part of the heat can be dissipated by itself. Because the coolant liquid in the second heat exchange disc 2282 does not directly exchange heat with the flywheel 22, the temperature of the coolant liquid in the second heat exchange disc 2282 is lower than that of the coolant liquid in the first heat exchange disc 2281, and the coolant liquid flows, so that heat is effectively taken away from the flywheel 22, and the heat dissipation effect is greatly improved.

The liquid feeding mechanism 2286 comprises a partition area surrounded by a partition wall 22861, an inlet of the support liquid guide column 2285 is arranged in the partition area, a liquid inlet 22862 is arranged on the partition wall 22861 in the rotation direction of the flywheel 22, an impeller shaft 22863 is arranged in the partition area, the outer end of the impeller shaft 22863 extends out of the second heat exchange plate 2282, an impeller 22864 is arranged at the inner end of the impeller shaft 22863, the driving mechanism 2287 comprises a driving gear 22865 arranged at the outer end of the impeller shaft 22863, an annular rack 22866 is arranged in the open end of the shell 21, and the driving gear 22865 is meshed with the annular rack 22866. When the flywheel 22 and the second heat exchange disc 2282 rotate synchronously, the annular rack 22866 is fixedly arranged in the open end of the shell 21, so that the annular rack 22866 does not rotate, at the moment, under the action of the annular rack 22866, the driving gear 22865 rotates in the direction opposite to the rotation direction of the flywheel 22, and the blades of the impeller 22864 meet the requirement that when the impeller 22864 rotates in the direction opposite to the flywheel 22, the cooling liquid in the partition area can be sent to the inlet of the supporting liquid guide column 2285; because partition wall 22861's inlet 22862 sets up in along flywheel 22 direction of rotation, so, can scrape like inlet 22862 when flywheel 22 is rotatory in-process coolant liquid, and under the effect of impeller 22864, enable coolant liquid to get into in first heat transfer dish 2281 through the import that supports drain 2285 fast, coolant liquid in first heat transfer dish 2281 then gets into in the second heat transfer dish 2282 through the intercommunication post 22867 between first heat transfer dish 2281 and the second heat transfer dish 2282, thereby form the circulation, play the effect of quick heat transfer, thereby effectively dispel the heat to the flywheel, can effectively will avoid friction disc 292 to damage because of the high temperature, improve the life of clutch disc 29, ensure to obtain best transmission effect.

As shown in fig. 1 to 9, the clutch of the present invention includes a housing 21, two ends of the housing 21 penetrate through the housing, for the convenience of installation, the housing 21 may include a first housing 2101 and a second housing 2102, the first housing 2101 and the second housing 2102 may be connected by a screw or a buckle, connection ear seats 2103 are symmetrically disposed on an outer wall of the first housing 2101, for the purpose of making the housing 21 more firmly installed, a plurality of fixed connection ear seats 2104 may be disposed on the first housing 2101, an air vent 2105 is disposed on a bottom surface of the first housing 2101, a flywheel 22 is disposed in the housing 21, a connection cone 23 is disposed on an outer side of the flywheel 22, a connection hole 24 is disposed in the middle of the connection cone 23, an outer side surface of the connection cone 23 is connected to an output end of an engine by a coupling 25, the coupling 25 includes a connection ring 251 fixedly connected to an output shaft of the engine, a plurality of first connection holes are uniformly distributed in the connection ring 251 along the circumferential direction, second connection holes are arranged at positions of the connection cone 23 corresponding to the connection holes, a connection bolt passes through the first connection holes and the second connection holes and then is connected with a locking nut, a mounting slot 26 is arranged in the coupling 25, the first transmission shaft 30 is movably arranged in the mounting slot 26 through a first bearing 13, a first connection shaft sleeve 27 capable of sliding along the axial direction of the first transmission shaft 30 is arranged at the front end of the first transmission shaft 30, a limiting mechanism 28 capable of preventing the first connection shaft sleeve 27 from rotating relative to the first transmission shaft 30 is arranged between the first connection shaft sleeve 27 and the first transmission shaft 30, a clutch plate 29 is sleeved outside the first connection shaft sleeve 27, the first connection shaft sleeve 27 comprises a first connection shaft sleeve main body 271, an external connection ring table 272 is arranged outside the middle part of the first connection shaft sleeve main body 271, the limiting mechanism 28 comprises a plurality of limiting grooves 281 arranged in the first connecting shaft sleeve main body 271 at intervals along the axis direction, limiting convex strips 282 are arranged at positions of the first transmission shaft 30 corresponding to the limiting grooves 281, and the limiting convex strips 282 are movably arranged in the limiting grooves 281, so that the first connecting shaft sleeve main body 271 can only move along the axial direction of the first transmission shaft 30 and cannot rotate relative to the first transmission shaft 30, the positioning is convenient, the stability between the clutch plate 29 and the first transmission shaft 30 is effectively ensured, and the transmission effect is ensured; the clutch plate 29 is movably sleeved on the outer wall of the external annular table 272, the fluctuation eliminating mechanism 210 is arranged between the clutch plate 29 and the first connecting shaft sleeve 27, and the fluctuation eliminating mechanism 210 effectively inhibits the fluctuation generated by the power output by the engine under the condition of ensuring smooth transmission between the clutch plate 29 and the external annular table 272, so that the power becomes smoother; a pressing cover 211 is fixedly connected to the inner side of the flywheel 22, a pressing plate 212 is movably arranged in the pressing cover 211, an elastic extrusion mechanism 213 capable of pressing a clutch plate 29 on the flywheel 22 so as to enable the output end of the engine and the first transmission shaft 30 to synchronously rotate is arranged between the pressing cover 211 and the pressing plate 212, a plurality of suspension arms 214 are arranged in the pressing cover 211 along the circumferential direction, the suspension arms 214 are hinged with driving pressure levers 216 through first hinge shafts 215, the pressing cover 211 is provided with suspension arm mounting holes, suspension arm bases 2141 are arranged in the suspension arm mounting holes, the upper ends of the suspension arm bases 2141 are provided with threaded connection parts, the threaded connection parts penetrate through the suspension arm mounting holes and are in rotary connection with connecting pieces 2142, the connecting pieces 2142 are fixed on the pressing cover 211 through mounting bolts, the suspension arms 214 comprise suspension arm shafts 2143 arranged in the suspension arm bases 2141, and the lower ends of the suspension arm shafts 2143 are connected with U, a first locking hole is formed in the end of the mounting bolt, a second locking hole is formed in the boom shaft 2143, and a locking steel rope 2147 penetrates through the first locking hole and the second locking hole, so that the mounting bolt is effectively prevented from loosening and disengaging in the rotating process; a first hinge hole is formed in one end of the driving pressure lever 216, hinge connection holes are symmetrically formed in two sides of the U-shaped boom frame 2144, a limiting end is formed in one end of the first hinge shaft 215, a locking hole is formed in the other end of the first hinge shaft 215, when the driving pressure lever 216 is installed, after one end of the driving pressure lever 216 is arranged in the U-shaped boom frame 2144, the first hinge shaft 215 sequentially penetrates through the hinge connection hole in one side of the U-shaped boom frame 2144, the first hinge hole of the driving pressure lever 216 and the hinge connection hole in the other side of the U-shaped boom frame 2144, and a locking piece 2145 is inserted into the locking hole of the first hinge shaft 215 to be locked; in order to make the driving pressure lever 216 rotate more smoothly, a plurality of rollers 2146 may be disposed in the first hinge hole of the driving pressure lever 216 along the circumferential direction, the outer wall of the rollers 2146 abuts against the outer wall of the first hinge shaft 215, the rollers 2146 can facilitate the driving pressure lever 216 to rotate in the U-shaped boom frame 2144, and the force between the driving pressure lever 216 and the first hinge shaft 215 can be more uniform, thereby effectively reducing the wear and effectively prolonging the service life; one end of the driving pressure lever 216 extends to the first transmission shaft 30, a hinge seat 217 is arranged at a position of the pressure plate 212 corresponding to the other end of the driving pressure lever 216, the other end of the driving pressure lever 216 is hinged to the hinge seat 217 through a second hinge shaft 218, a second hinge hole is arranged at the other end of the driving pressure lever 216, and the installation mode of the second hinge shaft 218 is similar to that of the first hinge shaft 215; a roller 2146 is also disposed in the second hinge bore; the rear end of the first transmission shaft 30 is sleeved with a second shaft sleeve 219, the rear end of the first transmission shaft 30 is provided with a positioning table 301, the second shaft sleeve 219 is arranged between a limiting convex strip 282 and the positioning table 301, one end of the outer side of the second shaft sleeve 219 is provided with a connecting ring seat 2191, the connecting ring seat 2191 is in transition with the second shaft sleeve 219 through a conical connecting part, the second shaft sleeve 219 is sleeved with a third shaft sleeve 220, the third shaft sleeve 220 cannot rotate relative to the second shaft sleeve 219, the outer wall of the third shaft sleeve 220 is provided with a limiting convex ring 221, one side of the limiting convex ring 221 is sleeved with a second bearing 222, one end face of the second bearing 222 abuts against a driving pressure rod 216 and is connected through the second bearing 222 to ensure dynamic connection between the third shaft sleeve 220 and the driving pressure rod 216, the outer wall of the third shaft sleeve 220 at the other side of the limiting convex ring 221 is provided with a squeezing seat 223, and a tension spring 224 is arranged between the, the pressing cover 211 is provided with a mounting hole 225, a rotary driving shaft 226 is arranged in the mounting hole 225, one end of the rotary driving shaft 226 extends out of the pressing cover 211, the other end of the rotary driving shaft 226 is provided with a driving pressing block 227, the driving pressing block 227 is abutted against a pressing seat 223, a transmission gear is arranged on the rotary driving shaft 226 extending out of one side of the pressing cover 211 and meshed with a driving rack, the driving rack is connected with a hydraulic system, the hydraulic system is connected with a control pedal, and the clutch is controlled more accurately by matching the driving rack with the transmission gear; a cooling device 228 is provided outside the flywheel 22. The cooling device 228 is configured as described above, and the cooling device 228 of the present invention effectively dissipates heat from the flywheel, effectively prevents the friction plate 292 from being damaged due to an excessive temperature, prolongs the service life of the clutch plate, and ensures an optimal transmission effect.

In the invention, a frustum groove 229 is arranged on the outer side of the flywheel 22, the first heat exchange disc 2281 is in a frustum shape, and the end surface of the first heat exchange disc 2281 is flush with the end surface of the flywheel 22 after the first heat exchange disc 2281 is installed in the frustum groove 229. The first heat exchange disc 2281 in the frustum shape is arranged in the frustum groove 229, so that the flywheel is uniformly stressed while being effectively positioned.

The elastic extrusion mechanism 213 comprises four extrusion spring units 2131 uniformly distributed between the inner side of the gland 211 and the inner side of the pressure plate 212, four trapezoidal openings 2132 uniformly distributed on the outer side of the gland 211, an elastic sheet seat 2133 arranged on the pressure plate 212 in the trapezoidal openings 2132, an elastic sheet 2134 arranged on the elastic sheet seat 2133, and one end of the elastic sheet 2134 is fixedly connected to the gland 211. The pressing spring unit 2131 comprises arc-shaped grooves 21311 arranged on the pressure plate 212 between two adjacent driving pressure rods 216, four spring connecting seats 21312 are evenly distributed in a fan shape in the arc-shaped grooves 21311 along the circumferential direction, a supporting gasket 21313 is sleeved at the bottom of the spring connecting seats 21312, a jacking spring 21314 is sleeved on the spring connecting seat 21312 above the supporting gasket 21313, and one end of the jacking spring 21314 is jacked on the inner wall of the pressure plate 212. The trapezoidal opening 2132 facilitates the convenient installation of the elastic sheet 2134, and meanwhile, the inside and the outside of the pressure plate 212 can be ventilated more effectively, and the heat dissipation effect is improved.

The clutch plate 29 of the present invention includes a support steel plate 291, friction plates 292 are respectively provided on both sides of the support steel plate 291, a central hole is arranged in the supporting steel sheet 291, the supporting steel sheet 291 is movably sleeved outside the first connecting shaft sleeve 27, a plurality of buffer grooves 294 are uniformly distributed on the supporting steel sheet 291, the fluctuation eliminating mechanism 210 comprises a driving disc 295 fixedly connected to the first connecting bushings 27 on the upper and lower sides of the supporting steel sheet 291, an attachment disc 296 is provided between one of the drive discs 295 and the support steel disc 291, the connecting disc 296 is connected with the supporting steel sheet 291 through a supporting cushion block 297 and a connecting nail 298, connecting grooves 293 are arranged at the positions of the connecting disc 296, the driving disc 295 and the buffer groove 294, connection blocking plates 299 are respectively arranged at two sides of the connection groove 293 and the buffer groove 294 along the circumferential direction, and a buffer spring 2910 is arranged between the two connection blocking plates 299. In the invention, when the flywheel 22 drives the clutch plate 29 to rotate, because the supporting steel sheet 291 is movably sleeved on the first connecting shaft sleeve 27, the connecting baffle 299 is firstly extruded by the supporting steel sheet 291 to overcome the movement of the buffer spring 2910, and under the action of the buffer spring 2910, the other connecting baffle 299 extrudes the driving disc 295, so that the first connecting shaft sleeve 27 drives the first transmission shaft 30 to rotate, and after the clutch plate 29 and the flywheel 22 reach balance, the connecting baffle 299 resets under the action of the buffer spring 2910; the fluctuation elimination mechanism 210 effectively suppresses the fluctuation of the power output from the engine while ensuring smooth transmission between the clutch disc 29 and the outer land 272, thereby making the power smoother.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cooling device for a clutch, characterized in that: including first heat transfer dish (2281) and second heat transfer dish (2282) that the interval set up, first heat transfer dish (2281) hugs closely the contact with flywheel (22) of clutch, be equipped with annular heat pipe (2283) with cavity intercommunication in first heat transfer dish (2281) in the clearance between first heat transfer dish (2281) and second heat transfer dish (2282), the equipartition has a plurality of arc pipes (2284) that communicate with annular heat pipe (2283) on annular heat pipe (2283) outside be equipped with the support liquid guide post (2285) that communicate with second heat transfer dish (2282) on arc pipe (2284) outside end, be equipped with the intercommunication post (22867) that communicate the inner chamber of first heat transfer dish (2281) and the inner chamber of second heat transfer dish (2282) between first heat transfer dish (2281) and second heat transfer dish (2282), be equipped with in the second heat transfer dish (2282) and support the liquid guide post (22867) that the corresponding heat transfer dish (2285) can flow into through first heat pipe (2285) and support liquid guide post (2285) 2281) The liquid feeding mechanism (2286) is provided with a driving mechanism (2287) which drives the liquid feeding mechanism (2286) to work by rotating a flywheel (22) on a shell (21) of the clutch.

2. A cooling device for a clutch according to claim 1, characterized in that: send liquid mechanism (2286) including the partition region who is enclosed by partition wall (22861), the import that supports drain post (2285) sets up in the partition region, is equipped with inlet (22862) on partition wall along flywheel (22) direction of rotation, be equipped with impeller shaft (22863) in the partition region, second heat exchange dish (2282) is stretched out to impeller shaft (22863) outer end impeller shaft (22863) inner end is equipped with impeller (22864), actuating mechanism (2287) including setting up drive gear (22865) of impeller shaft (22863) outer end be equipped with annular rack (22866) in the open end of casing (21), drive gear (22865) and annular rack (22866) meshing.

3. The utility model provides a clutch, including casing (21), be equipped with first transmission shaft (30) in casing (21), the movable cover is equipped with flywheel (22) on first transmission shaft (30), the cover is equipped with clutch disc (29) that can not rotate for first transmission shaft (30) on first transmission shaft (30), still including enabling clutch disc (29) and flywheel (22) combination or the separator who separates, its characterized in that: a cooling device (228) is arranged outside the flywheel (22), the cooling device (228) comprises a first heat exchange disc (2281) and a second heat exchange disc (2282) which are arranged at intervals, the first heat exchange disc (2281) is in close contact with the flywheel (22), an annular heat conduction pipe (2283) communicated with a cavity in the first heat exchange disc (2281) is arranged in a gap between the first heat exchange disc (2281) and the second heat exchange disc (2282), a plurality of arc-shaped guide pipes (2284) communicated with the annular heat conduction pipe (2283) are uniformly distributed on the outer side of the annular heat conduction pipe (2283), a supporting liquid conduction column (2285) communicated with the second heat exchange disc (2282) is arranged at the end part of the outer side of the arc-shaped guide pipe (2284), and a communication column (22867) communicated with the cavity of the first heat exchange disc (2281) and the cavity of the second heat exchange disc (2282) is arranged between the first heat exchange disc (2281) and the second heat exchange disc (2282), a liquid feeding mechanism (2286) which can drive heat-conducting liquid to flow into the first heat exchange disc (2281) through the supporting liquid-conducting column (2285) is arranged in the region corresponding to the supporting liquid-conducting column (2285) in the second heat exchange disc (2282), and a driving mechanism (2287) which can drive the liquid feeding mechanism (2286) to work is arranged on the shell (21) in a manner that the flywheel (22) rotates.

4. A clutch according to claim 3, wherein: the two ends of the shell (21) are penetrated, a flywheel (22) is arranged in the shell (21), a connecting frustum (23) is arranged on the outer side of the flywheel (22), a connecting hole (24) is formed in the middle of the connecting frustum (23), the outer side surface of the connecting frustum (23) is connected with the output end of an engine through a shaft coupling (25), a mounting groove hole (26) is formed in the shaft coupling (25), a first transmission shaft (30) is movably arranged in the mounting groove hole (26) through a first bearing (13), a first connecting shaft sleeve (27) capable of sliding along the axial direction of the first transmission shaft (30) is arranged at the front end of the first transmission shaft (30), a limiting mechanism (28) capable of preventing the first connecting shaft sleeve (27) from rotating relative to the first transmission shaft (30) is arranged between the first connecting shaft sleeve (27) and the first transmission shaft (30), a clutch plate (29) is sleeved on the outer side of the first connecting shaft sleeve (27), a ripple cancellation mechanism (210) is provided between the clutch plate (29) and the first coupling sleeve (27).

5. A clutch according to claim 4, wherein: the separating device comprises a pressing cover (211) fixedly arranged on the inner side of a flywheel (22), a pressing plate (212) is movably arranged in the pressing cover (211), an elastic extrusion mechanism (213) capable of pressing a clutch plate (29) on the flywheel (22) so as to enable the output end of the engine and a first transmission shaft (30) to synchronously rotate is arranged between the pressing cover (211) and the pressing plate (212), a plurality of suspension arms (214) are arranged in the pressing cover (211) along the circumferential direction, driving pressure rods (216) are hinged on the suspension arms (214) through first hinge shafts (215), one ends of the driving pressure rods (216) extend to the first transmission shaft (30), hinge seats (217) are arranged at corresponding positions of the other ends of the pressing plate (212) and the driving pressure rods (216), and the other ends of the driving pressure rods (216) are hinged on the hinge seats (217) through second hinge shafts (218), the rear end of the first transmission shaft (30) is sleeved with a second shaft sleeve (219), the second shaft sleeve (219) is sleeved with a third shaft sleeve (220), the outer wall of the third shaft sleeve (220) is provided with a limit convex ring (221), one side of the limit convex ring (221) is sleeved with a second bearing (222), one end face of the second bearing (222) is abutted against a driving pressure rod (216), the outer wall of the third shaft sleeve (220) at the other side of the limit convex ring (221) is provided with a squeezing seat (223), a tension spring (224) is arranged between the outer wall of the third shaft sleeve (220) and the second shaft sleeve (219), the gland (211) is provided with a mounting hole (225), a rotary driving shaft (226) is arranged in the mounting hole (225), one end of the rotary driving shaft (226) extends out of the gland (211), and the other end of the rotary driving shaft (226) is provided with a driving pressure, the drive pressure piece (227) rests on the pressure seat (223).

6. A clutch according to claim 5, wherein: be equipped with frustum recess (229) in flywheel (22) outside, first heat transfer dish (2281) are the frustum shape, the terminal surface of first heat transfer dish (2281) is installed behind frustum recess (229) and the terminal surface parallel and level of flywheel (22) in first heat transfer dish (2281).

7. A clutch according to claim 5, wherein: the elastic extrusion mechanism (213) comprises four extrusion spring units (2131) uniformly distributed between the inner side of the gland (211) and the inner side of the pressure plate (212), four trapezoidal openings (2132) are uniformly distributed on the outer side of the gland (211), an elastic sheet seat (2133) is arranged on the pressure plate (212) in each trapezoidal opening (2132), an elastic sheet (2134) is installed on each elastic sheet seat (2133), and one end of each elastic sheet (2134) is fixedly connected to the gland (211).

8. A clutch according to claim 5, wherein: clutch disc (29) including support steel sheet (291) be equipped with friction disc (292) on support steel sheet (291) both sides respectively support steel sheet (291) in be equipped with the centre bore, support steel sheet (291) activity cover is established outside first connecting axle sleeve (27), the equipartition has a plurality of dashpot (294) on support steel sheet (291).

9. A clutch according to claim 8, wherein: the fluctuation eliminating mechanism (210) comprises driving discs (295) fixedly connected to first connecting shaft sleeves (27) on the upper side and the lower side of a supporting steel sheet (291) respectively, a connecting disc (296) is arranged between one of the driving discs (295) and the supporting steel sheet (291), the connecting disc (296) is connected with the supporting steel sheet (291) through a supporting cushion block (297) and a connecting nail (298), connecting grooves are formed in positions corresponding to the connecting disc (296), the driving disc (295) and a buffer groove (294), connecting baffles (299) are arranged in the connecting grooves and the buffer groove (294) along the circumferential direction respectively, and a buffer spring (2910) is arranged between the two connecting baffles (299).

10. A clutch according to claim 3, wherein: the shell (21) can comprise a first shell (2101) and a second shell (2102), the first shell (2101) is connected with the second shell (2102) through screws or buckles, connecting lug seats (2103) are symmetrically arranged on the outer wall of the first shell (2101), a plurality of fixed connecting lug seats (2104) are arranged on the first shell (2101), and air holes (2105) are formed in the bottom surface of the first shell (2101).