CN112172985B - Air cooling device of motorcycle speed changer - Google Patents
Air cooling device of motorcycle speed changer Download PDFInfo
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- CN112172985B CN112172985B CN202011224267.0A CN202011224267A CN112172985B CN 112172985 B CN112172985 B CN 112172985B CN 202011224267 A CN202011224267 A CN 202011224267A CN 112172985 B CN112172985 B CN 112172985B
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- 238000001816 cooling Methods 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims abstract description 68
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J41/00—Arrangements of radiators, coolant hoses or pipes on cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0416—Air cooling or ventilation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides an air cooling device of a motorcycle transmission, and belongs to the technical field of motorcycles. The air cooling device solves the problem that rainwater and impurities in the existing air cooling device easily affect the service life and transmission efficiency of a transmission. The air cooling device of the motorcycle speed changer comprises a fan arranged on a power output shaft of an engine and a transmission box cover with an air guide chamber inside, wherein an air inlet is formed in the transmission box cover, an air outlet which is communicated with the air guide chamber and is opposite to the fan is formed in the transmission box cover, a water retaining convex edge is formed in the side wall of the air guide chamber, the water retaining convex edge surrounds the air outlet to form an air inlet channel, an inlet of the air inlet channel is arranged downwards, the air inlet is formed in the top wall of the transmission box cover and is located above the water retaining convex edge, and a water outlet is formed in the bottom of the transmission box cover. The invention effectively avoids the condition that rainwater and impurities carried by the rainwater enter the air outlet, so that the service life and the transmission efficiency of the speed changer are not easy to be influenced by the rainwater and the impurities.
Description
Technical Field
The invention belongs to the technical field of motorcycles, and relates to an air cooling device of a motorcycle transmission.
Background
The CVT continuously variable transmission is a transmission device that uses a belt in combination with a driving pulley and a driven pulley to transmit power so as to achieve continuous change of a transmission ratio. For CVT continuously variable transmissions, the life of the belt, driving pulley and driven pulley and the transmission efficiency directly affect the operating effect of the transmission.
CVT continuously variable transmissions generate more heat during operation, and therefore how to effectively dissipate heat is important. In the prior art, a belt and other parts of a CVT continuously variable transmission are cooled by arranging an air inlet on a transmission case cover, arranging fan blades on the outer side wall of a driving belt pulley, connecting the driving belt pulley with a power output shaft of a developed machine, driving the driving belt pulley to rotate by the power output shaft of the engine, and further forcibly sucking outside air by the fan blades to realize cooling. The cooling air guiding device for motorcycle transmission case has one transmission case cover with one belt speed varying mechanism inside, one air inlet in the front end of the transmission case cover, one partition board with cooling air through hole corresponding to the driving disc of the belt speed varying mechanism, and one air guiding mechanism in the direction of the driving disc. The wind guiding device has the following defects: the air inlet is arranged on the front end face of the transmission case cover, the air inlet can be increased to ensure good cooling effect although the air inlet has larger windward area, and impurities such as dust, slurry and the like carried by rainwater and rainwater can easily enter the transmission case cover along with air and reach the inside of the speed changing chamber in rainy days, so that the belt and the driving pulley are worn and polluted, the belt is slipped to influence the transmission efficiency, and the service life of the belt and the driving pulley is reduced due to the abrasion. At present, in order to solve the problem, a filter screen is usually arranged at the air inlet, and part of water and impurities are filtered by the filter screen.
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides an air cooling device of a motorcycle transmission, which solves the problems that rainwater and impurities in the existing air cooling device easily influence the service life and transmission efficiency of the transmission.
The aim of the invention can be achieved by the following technical scheme: the utility model provides an air cooling device of motorcycle derailleur, includes the fan and the inside drive case lid that has the air guide chamber that set up on engine power take off shaft, be equipped with the air intake on the drive case lid, be equipped with on the drive case lid with the air guide chamber be linked together and with the fan just to the air outlet, its characterized in that, be equipped with the manger plate protruding edge on the lateral wall of air guide chamber, the manger plate protruding edge encircles the air outlet setting and forms the air inlet passageway, the entry of air inlet passageway sets up downwards, the air intake is established on the roof of drive case lid and is located the top of manger plate protruding edge, the bottom of drive case lid is equipped with the outlet.
The transmission case cover is fixedly connected to the motorcycle body, and in the running process of the engine, the engine power output shaft drives the driving belt pulley to rotate, and the fan can forcedly suck external air along with the rotation of the engine power output shaft, so that the external air is sucked into the air guide chamber through the air inlet and then flows out of the belt speed change mechanism at the inner side of the transmission case cover through the air outlet to cool.
In this air cooling device, the air intake sets up on the roof of drive case lid, and this air intake is not openly windward setting, consequently can reduce rainwater and impurity entering drive case lid's air guide chamber in, promotes the cleanliness factor of air. The air inlet channel is formed by arranging the water retaining convex edge on the side wall of the air guide chamber and depending on the water retaining convex edge, the channel is different from the notch and has a certain length, and because the inlet of the air inlet channel of the air cooling device is downwards arranged, by the design, air can still be sucked into the air outlet through the air inlet channel under the suction action of the fan, but rainwater cannot enter the air inlet channel due to heavy dead weight. At this moment, because the air intake is in the top along the protruding edge of manger plate, and the protruding edge of manger plate is around the air outlet setting, rainwater and impurity can drop to the protruding edge of manger plate and be blocked by the protruding edge of manger plate after entering the air intake like this, after rainwater can't get into the air inlet passageway, only can drop and finally discharge from the outlet bottom the case lid along the protruding edge of manger plate always downwards, and then effectively avoided the rainwater and the impurity that the rainwater carried to get into the condition in the air outlet for the life and the transmission efficiency of derailleur are difficult for receiving the influence of rainwater and impurity.
In the air cooling device of the motorcycle transmission, the water retaining flange comprises a minor arc section and a major arc section, the major arc section is connected to the edge of the air outlet, an opening formed by the major arc section is located at the top of the air outlet, the minor arc section is located above the air outlet, the outer convex wall of the minor arc section faces the air inlet, one end of the minor arc section is connected with one end of the major arc section, the other end of the minor arc section extends to the upper side of the other end of the major arc section, an air inlet channel located at the front side of the opening is formed, and the inlet of the air inlet channel is obliquely arranged downwards. The outer convex wall of the minor arc section is arranged towards the air inlet, so that after rainwater entering the air inlet falls onto the minor arc section, the minor arc section can guide the rainwater to the front side and the rear side, accumulation of the rainwater is avoided, and the rainwater is effectively discharged. Because the opening that the major arc section formed is located the top of air outlet, and the air inlet passageway is located the open-ended front side, such setting makes the air inlet passageway be close to the air intake as far as possible to guarantee that the fan can inhale external air more high-efficiently, guarantee refrigerated effect. The inlet of the air inlet channel is obliquely downwards arranged, so that rainwater is prevented from entering the air inlet channel, and air is prevented from entering the air inlet channel.
In the air cooling device of the motorcycle transmission, the transmission case cover comprises a main cover body and an air guide cover covered on the outer side wall of the main cover body, the air guide chamber is formed between the main cover body and the air guide cover, the air outlet and the water retaining convex edge are both arranged on the main cover body, and the end face of the water retaining convex edge, which faces the air guide cover, and the air guide cover form a seal. Through setting up the wind scooper, and the protruding terminal surface and the wind scooper of orientation wind scooper form sealedly for the rainwater that gets into the wind scooper indoor can't be through in being inhaled the air outlet between wind scooper and the protruding edge of manger plate, and can only follow the outlet discharge of bottom, thereby more effectually avoid the rainwater and the impurity that the rainwater carried to get into the condition in the air outlet. In addition, the main cover body and the air guide cover of the split structure are combined to form the transmission box cover, so that the air guide chamber can be conveniently formed and the water retaining convex edge can be conveniently processed, the air cooling device is more convenient to process, and the manufacturing cost is reduced.
In the air cooling device of the motorcycle transmission, the water retaining convex edge is provided with the spiral inserting groove along the length direction of the water retaining convex edge on the end face of the air guide cover, the inner side wall of the air guide cover is provided with the spiral water retaining sheet, and the water retaining sheet is inserted into the inserting groove towards the side edge of the water retaining convex edge in a matched mode. The water retaining convex edge and the inserting piece are in bolt shapes, and the shapes of the water retaining convex edge and the inserting piece are consistent. Through set up the jack-in groove on the protruding edge of manger plate for the manger plate piece can be cooperated and pegged graft in the jack-in groove towards the protruding side edge of manger plate along, this structure has increased the protruding edge of manger plate and the cooperation area between the manger plate piece, in order to avoid the rainwater to get into the condition in the air outlet through the faying surface between the two better. Meanwhile, because the air flow always flows in at a high speed in the air guide chamber, the water retaining sheet is matched and inserted in the inserting groove, and the water retaining sheet is positioned and supported, so that the thickness of the water retaining sheet can be reduced to be conveniently and smoothly inserted in the inserting groove when the water retaining sheet is designed, and the water retaining sheet is positioned and supported by the inserting groove, so that the situation that the thinner water retaining sheet is deformed due to the impact of high-speed air flow is avoided.
In the air cooling device of the motorcycle transmission, a sealing ring is further arranged in the inserting groove, and the side edge of the water retaining sheet inserted into the inserting groove abuts against the sealing ring. Through set up the sealing washer in the draw-in groove for have better leakproofness between manger plate piece and the manger plate protruding edge, thereby avoid the condition in the rainwater entering air outlet better.
In the air cooling device of the motorcycle transmission, the air outlet is circular, and the inner concave wall of the major arc section is coplanar with the side wall of the air outlet. The design makes and has great connecting area between protruding edge of manger plate and the main lid, guarantees the protruding edge of manger plate stable in structure, still makes the air that gets into in the protruding edge of manger plate comparatively smoothly circulate to in the air outlet simultaneously to promote cooling effect.
In the air cooling device of the motorcycle transmission, the air guide cover is provided with the top plate and the front end plate, the top plate of the air guide cover gradually inclines upwards from the front side to the tail side of the vehicle body, the air inlet is formed in the front end part of the top plate, and the front end plate of the air guide cover is an arc-shaped plate with the outer convex wall facing the front side of the vehicle body. The roof of wind scooper is by the front side of automobile body to the tail side slope upwards gradually, has promoted the windward area of air intake to a certain extent for outside air gets into in the air intake more smoothly, in order to promote the cooling effect.
In the air cooling device of the motorcycle transmission, the outer convex wall of the front side of the water retaining convex edge is further provided with a columnar screw connection part, a screw connection part for fixedly connecting the air guide cover and the main cover body is arranged in the screw connection part in a penetrating manner, the screw connection part is positioned at the lower side of the air inlet channel, and an interval is arranged between the screw connection part and the inner wall of the front end plate. Outside air needs to be sucked into the air outlet through the air inlet and the air inlet channel in sequence, and the screw connection part is arranged on the outer convex wall of the front side of the water retaining convex edge, so that connection fixation between the air guide cover and the main cover body is realized, and the screw connection part has certain speed reduction and storage effect on air when the air flows to the inlet of the air inlet channel due to the lower side of the air inlet channel, so that more air can enter the air inlet channel, the cooling effect is improved, and the interval between the screw connection part and the inner wall of the front end plate can ensure that rainwater can smoothly fall to the bottom of the transmission case cover through the interval and then be discharged from the water outlet.
In the air cooling device of the motorcycle transmission, the number of the air inlets is multiple, and the air inlets are sequentially arranged at intervals along the front-back direction of the air guide cover. The arrangement of the air inlets is under the premise of ensuring that the air inlets have larger air inflow, the opening of each air inlet is smaller, and some larger impurities can be prevented from entering the air guide chamber.
In the air cooling device of the motorcycle transmission, the inner wall of the air guide cover is also provided with a plurality of reinforcing rib plates connected with the water retaining sheets. Through still designing, strengthened the structure of manger plate piece for the manger plate piece can not appear the condition of deformation because of the impact of high-speed air current.
Compared with the prior art, the air cooling device of the motorcycle transmission has the following advantages:
1. according to the air cooling device, the water retaining protruding edge is arranged on the side wall of the air guide chamber, separation of rainwater and air is achieved, the rainwater can only drop downwards along the water retaining protruding edge and finally is discharged from the water outlet at the bottom of the transmission case cover, the situation that the rainwater and impurities carried by the rainwater enter the air outlet is effectively avoided, and the service life and the transmission efficiency of the transmission are not easy to be influenced by the rainwater and the impurities.
2. The main cover body and the air guide cover of the split structure are combined to form the transmission box cover, so that the air guide chamber can be conveniently formed and the water retaining convex edge can be conveniently processed, the air cooling device is more convenient to process, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of the air cooling device and engine parts.
Fig. 2 is a cross-sectional rotation view of fig. 1.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is a schematic diagram of an internal structure of a wind scooper in the air cooling device.
Fig. 5 is an exploded view of the present air cooling device.
Fig. 6 is a front view of the air cooling device after hiding the air guide cover.
Fig. 7 is a front view II of the air cooling device after hiding the air guide cover.
In the figure, 1, an engine power output shaft; 2. a driving pulley; 21. a fan; 3. a transmission case cover; 31. an air guide chamber; 32. a main cover body; 321. a water retaining convex edge; 321a, minor arc segments; 321b, a major arc segment; 321c, a plugging groove; 322. a screw connection part; 33. a wind scooper; 331. a water blocking piece; 332. a top plate; 333. a front end plate; 334. reinforcing rib plates; 4. an air outlet; 5. an air inlet channel; 6. a water outlet; 7. an opening; 8. a seal ring; 9. and an air inlet.
Detailed Description
The following is a specific embodiment of the present invention and a technical solution of the present invention is further described with reference to the accompanying drawings, but the present invention is not limited to this embodiment.
As shown in fig. 1 and 2, in the air cooling device of the motorcycle transmission, the transmission comprises a driving pulley 2 connected to a power output shaft 1 of an engine, in this embodiment, the power output shaft 1 is a crankshaft of the engine, a plurality of fan blades are arranged on the outer side wall of the driving pulley 2 to form a fan 21, the air cooling device comprises a transmission case cover 3 fixed on a gearbox body, a main cover body 32 fixedly connected on the motorcycle body of the transmission case cover 3 and an air guide cover 33 covered on the outer side wall of the main cover body 32, the air guide cover 33 is connected with the main cover body 32 by bolts, and an air guide chamber 31 is formed between the main cover body 32 and the air guide cover 33.
As shown in fig. 2 and 5, the main cover 32 of the transmission case cover 3 is provided with an air outlet 4, the air outlet 4 is communicated with the air guide chamber 31 and is opposite to the fan 21, the main cover 32 is also provided with a water retaining convex edge 321, the water retaining convex edge 321 is spiral and is arranged around the air outlet 4, an air inlet channel 5 is formed between the front end and the rear end of the water retaining convex edge 321, and the inlet of the air inlet channel 5 is obliquely downwards arranged.
As shown in fig. 2,3 and 4, a spiral inserting groove 321c is formed in the end face of the water retaining protruding edge 321, which faces the wind scooper 33, along the length direction of the water retaining protruding edge 321, a sealing ring 8 is further arranged in the inserting groove 321c, a spiral water retaining piece 331 is arranged on the inner side wall of the wind scooper 33, the water retaining protruding edge 321 and the inserting piece are both in bolt shapes, the shapes of the water retaining protruding edge 321 and the inserting piece are consistent, the water retaining piece 331 is inserted in the inserting groove 321c towards the side edge of the water retaining protruding edge 321 in a matched mode, and the side edge abuts against the sealing ring 8. Through set up sealing washer 8 in inserting groove 321c for have better leakproofness between manger plate piece 331 and the manger plate protruding edge 321, thereby avoid the condition in the rainwater entering air outlet 4 better. The inner wall of the wind scooper 33 is further provided with a plurality of reinforcing rib plates 334 connected with the water baffle 331, so that the structure of the water baffle 331 is reinforced, and the water baffle 331 cannot be deformed due to the impact of high-speed air flow.
As shown in fig. 4 and 5, the bottom of the front end of the air guiding cover 33 is provided with the water outlet 6, the air guiding cover 33 is provided with the top plate 332 and the front end plate 333, the top plate 332 of the air guiding cover 33 gradually inclines upwards from the front side to the tail side of the vehicle body, the front end plate 333 of the air guiding cover 33 is an arc plate of the front side of the vehicle body with the outer convex wall, the front end part of the top plate 332 is provided with the air inlet 9, and the air inlet 9 is positioned above the water retaining convex edge 321. The number of the air inlets 9 is 5, and the 5 air inlets 9 are sequentially arranged at intervals along the front-back direction of the air guide cover 33. In the actual manufacturing process, the number of the air inlets 9 may be increased or decreased appropriately. The arrangement of the plurality of air inlets 9 ensures that the air inlet amount is larger, and the opening 7 of each air inlet 9 is smaller, so that some larger impurities can be prevented from entering the air guide chamber 31. The top plate 332 of the air guiding cover 33 gradually inclines upwards from the front side to the tail side of the vehicle body, so that the windward area of the air inlet 9 is increased to a certain extent, and the outside air can smoothly enter the air inlet 9 to improve the cooling effect.
Specifically, as shown in fig. 6, the air outlet 4 is circular, the water retaining flange 321 includes a minor arc section 321a and a major arc section 321b, the major arc section 321b is connected at the edge of the air outlet 4 and makes the concave wall of the major arc section 321b coplanar with the side wall of the air outlet 4, the opening 7 of the major arc section 321b is located at the top of the air outlet 4, the minor arc section 321a is located above the air outlet 4, the convex wall of the minor arc section 321a faces the air inlet 9, the end of the minor arc section 321a, which is closer to the vehicle tail, is connected with the end of the major arc section 321b, which is closer to the vehicle tail, and the other end of the minor arc section 321a extends to the upper side of the other end of the major arc section 321b and forms the air inlet channel 5 located at the front side of the opening 7. Because the opening 7 formed by the arc segment 321b is positioned at the top of the air outlet 4, and the air inlet channel 5 is positioned at the front side of the opening 7, the air inlet channel 5 is as close to the air inlet 9 as possible, so that the fan 21 can suck the outside air more efficiently, and the cooling effect is ensured.
As shown in fig. 6, the outer convex wall at the front side of the water retaining convex edge 321 is further provided with a columnar screw connection part 322, a screw connection part for fixedly connecting the wind scooper 33 and the main cover 32 is arranged in the screw connection part 322 in a penetrating manner, the screw connection part 322 is positioned at the lower side of the air inlet channel 5, and a space is reserved between the screw connection part 322 and the inner wall of the front end plate 333 of the wind scooper 33. If the main flow path of the air is indicated by the arrow in fig. 6, the discharge path of the rainwater and the impurities is indicated by the arrow in fig. 7, according to the indication in fig. 6, the external air is mainly sucked into the air outlet 4 through the air inlet 9 and the air inlet channel 5 in sequence, and the screw connection portion 322 is arranged on the outer convex wall at the front side of the water retaining convex edge 321, so that the connection and fixation between the air guide cover 33 and the main cover 32 are realized, and the screw connection portion 322 is positioned at the lower side of the air inlet channel 5, so that when the air flows to the inlet of the air inlet channel 5, the screw connection portion 322 has a certain speed reducing and retaining effect on the air, so that more air can enter the air inlet channel 5, and the cooling effect is improved.
As shown in fig. 7, rainwater and impurities can fall onto the minor arc section 321a of the water retaining flange 321 after entering the air inlet 9 and are blocked by the minor arc section 321a, and the minor arc section 321a can guide the rainwater to the front side and the rear side, so that the accumulation of the rainwater is avoided. Because the rainwater can not enter the air inlet channel 5, the rainwater can only drop downwards along the water retaining convex edge 321 all the time and finally is discharged from the water outlet 6 at the bottom of the transmission case cover 3, and further the condition that the rainwater and the impurity carried by the rainwater enter the air outlet 4 is effectively avoided, so that the service life and the transmission efficiency of the transmission are not easy to be influenced by the rainwater and the impurity.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although 1, the engine power take off shaft is used more herein; 2. a driving pulley; 21. a fan; 3. a transmission case cover; 31. an air guide chamber; 32. a main cover body; 321. a water retaining convex edge; 321a, minor arc segments; 321b, a major arc segment; 321c, a plugging groove; 322. a screw connection part; 33. a wind scooper; 331. a water blocking piece; 332. a top plate; 333. a front end plate; 334. reinforcing rib plates; 4. an air outlet; 5. an air inlet channel; 6. a water outlet; 7. an opening; 8. a seal ring; 9. air intakes, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (10)
1. The utility model provides an air cooling device of motorcycle derailleur, includes fan (21) and inside on engine power take off shaft (1) have the drive case lid (3) of air-guide chamber (31), be equipped with air intake (9) on drive case lid (3), be equipped with on drive case lid (3) with air-guide chamber (31) and with fan (21) just air outlet (4), its characterized in that, be equipped with manger plate protruding edge (321) on the lateral wall of air-guide chamber (31), manger plate protruding edge (321) encircle air outlet (4) setting and form air inlet channel (5), the entry of air inlet channel (5) sets up downwards, air intake (9) are established on the roof of drive case lid (3) and are located the top of manger plate protruding edge (321), the bottom of drive case lid (3) is equipped with outlet (6).
2. The air cooling device of the motorcycle transmission according to claim 1, wherein the transmission case cover (3) comprises a main cover body (32) and an air guide cover (33) covered on the outer side wall of the main cover body (32), the air guide chamber (31) is formed between the main cover body (32) and the air guide cover (33), the air outlet (4) and the water blocking convex edge (321) are both arranged on the main cover body (32), and the end face of the water blocking convex edge (321) facing the air guide cover (33) forms a seal with the air guide cover (33).
3. The air cooling device of a motorcycle transmission according to claim 1, wherein the water retaining flange (321) comprises a minor arc section (321 a) and a major arc section (321 b), the major arc section (321 b) is connected at the edge of the air outlet (4) and an opening (7) formed by the major arc section (321 b) is positioned at the top of the air outlet (4), the minor arc section (321 a) is positioned above the air outlet (4), the outer convex wall of the minor arc section (321 a) faces the air inlet (9), one end of the minor arc section (321 a) is connected with one end of the major arc section (321 b), the other end of the minor arc section (321 a) extends to the upper side of the other end of the major arc section (321 b) and forms an air inlet channel (5) positioned at the front side of the opening (7), and the inlet of the air inlet channel (5) is obliquely downward.
4. The air cooling device of the motorcycle transmission according to claim 2, wherein a spiral inserting groove (321 c) is formed in the end face of the water retaining protruding edge (321) facing the air guiding cover (33) along the length direction of the water retaining protruding edge (321), a spiral water retaining sheet (331) is arranged on the inner side wall of the air guiding cover (33), and the water retaining sheet (331) is inserted in the inserting groove (321 c) in a matched mode towards the side edge of the water retaining protruding edge (321).
5. The air cooling device of the motorcycle transmission according to claim 4, wherein a sealing ring (8) is further arranged in the inserting groove (321 c), and the side edge of the water blocking piece (331) inserted into the inserting groove (321 c) abuts against the sealing ring (8).
6. An air cooling device of a motorcycle transmission according to claim 3, characterized in that said air outlet (4) is circular, the concave wall of said major arc section (321 b) being coplanar with the lateral wall of the air outlet (4).
7. The air cooling device of a motorcycle transmission according to claim 2, 4 or 5, wherein the air guiding cover (33) is provided with a top plate (332) and a front end plate (333), the top plate (332) of the air guiding cover (33) gradually inclines upwards from the front side to the tail side of the vehicle body, the air inlet (9) is formed in the front end part of the top plate (332), and the front end plate (333) of the air guiding cover (33) is an arc-shaped plate with an outer convex wall facing the front side of the vehicle body.
8. The air cooling device of the motorcycle transmission according to claim 7, wherein the outer convex wall of the front side of the water retaining convex edge (321) is provided with a columnar screw connection part (322), a screw connection part for fixedly connecting the air guide cover (33) and the main cover body (32) is arranged in the screw connection part (322), the screw connection part (322) is positioned at the lower side of the air inlet channel (5), and a space is reserved between the screw connection part (322) and the inner wall of the front end plate (333).
9. The air cooling device of a motorcycle transmission according to claim 7, wherein the number of the air inlets (9) is plural, and each air inlet (9) is arranged at intervals in the front-rear direction of the air guide cover (33).
10. An air cooling device of a motorcycle transmission according to claim 4 or 5, characterized in that the inner wall of the air guiding cover (33) is further provided with a plurality of reinforcing ribs (334) connected with the water blocking sheet (331).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011224267.0A CN112172985B (en) | 2020-11-05 | 2020-11-05 | Air cooling device of motorcycle speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011224267.0A CN112172985B (en) | 2020-11-05 | 2020-11-05 | Air cooling device of motorcycle speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112172985A CN112172985A (en) | 2021-01-05 |
| CN112172985B true CN112172985B (en) | 2024-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011224267.0A Active CN112172985B (en) | 2020-11-05 | 2020-11-05 | Air cooling device of motorcycle speed changer |
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| CN (1) | CN112172985B (en) |
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| CN115285275B (en) * | 2022-08-02 | 2023-04-28 | 浙江钱江摩托股份有限公司 | Cooling structure of motorcycle speed changer |
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| US6588529B2 (en) * | 2000-07-05 | 2003-07-08 | Yamaha Hatsudoki Kabishuki Kaisha | Body cover and structure for motorcycle |
| US6601667B2 (en) * | 2001-07-10 | 2003-08-05 | Buell Motorcycle Company | Motorcycle engine cooling system |
| CN1804435B (en) * | 2005-01-11 | 2010-04-28 | 光阳工业股份有限公司 | Cooling wind guide device of transmission case of motorcycle |
| CN2842098Y (en) * | 2005-08-30 | 2006-11-29 | 光阳工业股份有限公司 | Motorcycle transmission case cooling-air guding device |
| CN201065933Y (en) * | 2007-07-31 | 2008-05-28 | 立峰集团有限公司 | Motorcycle engine stepless transmission wind-cooling device aeration end cap |
| CN201972774U (en) * | 2011-02-15 | 2011-09-14 | 重庆路沃发动机有限公司 | Wind guide device for forced air cooling vertical motorcycle engine |
| TWI513608B (en) * | 2013-07-18 | 2015-12-21 | Kwang Yang Motor Co | The wind - driven structure of the cooling wind of the vehicle transmission box |
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| CN213414066U (en) * | 2020-11-05 | 2021-06-11 | 浙江钱江摩托股份有限公司 | Air cooling device of motorcycle transmission |
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