CN216279232U

CN216279232U - Continuously variable transmission of all-terrain vehicle and all-terrain vehicle

Info

Publication number: CN216279232U
Application number: CN202122585199.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: Segway Technology Co Ltd
Current assignee: Segway Technology Co Ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-12
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses an all-terrain vehicle and a continuously variable transmission thereof, wherein the continuously variable transmission comprises: the shell is provided with an air inlet pipe and an air outlet pipe; the driving wheel assembly is arranged in the shell; the driven wheel assembly is arranged in the shell and is in transmission fit with the driving wheel assembly; the air guide sleeve is arranged in the shell and located on one side of the driven wheel assembly, the air guide sleeve is provided with a through hole, the driven wheel assembly penetrates through the through hole, and the air guide sleeve, the driven wheel assembly and the shell define a sealed air suction cavity together. When moving to the direction of crankcase from the driving wheel subassembly, the intracavity that induced drafts can produce the negative pressure to external cold air enters into the intracavity that induced drafts under the negative pressure effect, takes away the high temperature heat that drive belt department produced, consequently can make buncher's radiating effect better, and is more comprehensive to the heat dissipation of drive belt department, prolongs drive belt's working life, improves the reliability of engine.

Description

Continuously variable transmission of all-terrain vehicle and all-terrain vehicle

Technical Field

The utility model relates to the technical field of all-terrain vehicles, in particular to a continuously variable transmission of an all-terrain vehicle and the all-terrain vehicle.

Background

At present, all-terrain vehicles are increasingly used in hot field life. However, the heat dissipation structure of the continuously variable transmission of some types of all-terrain vehicles has certain disadvantages, so that the heat dissipation of the continuously variable transmission is poor, the internal temperature is too high, and the internal temperature exceeds the limit working temperature which can be borne by the transmission belt of the continuously variable transmission, so that the transmission belt is worn and broken early.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the continuously variable transmission of the all-terrain vehicle, the relatively sealed air suction cavity is defined by the air guide sleeve, the driven wheel assembly and the shell, when the driven wheel assembly moves towards the crankcase, negative pressure can be generated in the air suction cavity, so that external cold air enters the air suction cavity under the action of the negative pressure and takes away high-temperature heat generated at the position of the transmission belt, the heat dissipation effect of the continuously variable transmission is better, the heat dissipation at the position of the transmission belt is more comprehensive, the service life of the transmission belt is prolonged, and the reliability of an engine is improved.

The utility model further provides an all-terrain vehicle.

The continuously variable transmission of an all-terrain vehicle according to the utility model comprises: a housing having an air inlet duct and an air outlet duct; the driving wheel assembly is arranged in the shell; the driven wheel assembly is arranged in the shell and is in transmission fit with the driving wheel assembly; the air guide sleeve is arranged in the shell and located on one axial side of the driven wheel assembly, the air guide sleeve is provided with a through hole, the driven wheel assembly penetrates through the through hole, and the air guide sleeve, the driven wheel assembly and the shell define a sealed air suction cavity together.

According to the continuously variable transmission of the all-terrain vehicle, the air draft cavity which is relatively sealed is defined by the air guide sleeve, the driven wheel assembly and the shell, when the driven wheel assembly moves towards the crankcase, negative pressure can be generated in the air draft cavity, so that external cold air enters the air draft cavity under the action of the negative pressure and takes away high-temperature heat generated at the position of the transmission belt, the heat dissipation effect of the continuously variable transmission is better, the heat dissipation at the position of the transmission belt is more comprehensive, the service life of the transmission belt is prolonged, and the reliability of an engine is improved.

In some examples of the present invention, the air inlet pipe is disposed at an upper end of the air suction chamber and communicates with the air suction chamber, and the air outlet pipe is disposed at a side of the driving wheel assembly away from the driven wheel assembly.

In some examples of the utility model, the air inlet duct includes: the first pipe section is communicated with the second pipe section, the first pipe section is vertically arranged and communicated with the air suction cavity, and the second pipe section is transversely arranged and extends towards the direction far away from the first pipe section.

In some examples of the utility model, the first pipe section is provided with a first clamping portion, the second pipe section is provided with a second clamping portion, and the first clamping portion and the second clamping portion are in clamping fit.

In some examples of the utility model, the outlet duct is longitudinally disposed and extends away from the driven wheel assembly.

In some examples of the utility model, the housing comprises: the outer shell and the inner shell, the outer shell with the kuppe is injectd the air suction cavity, first pipeline section with go out the tuber pipe set up in the outer shell, the second pipeline section set up in the inner shell.

In some examples of the utility model, the inner shell is provided with a third clamping part, the draft shield is provided with a fourth clamping part, and the third clamping part and the fourth clamping part are in clamping fit.

In some examples of the present invention, an air inlet guide portion, a first air outlet guide portion and a second air outlet guide portion are disposed on the air guide sleeve, the air inlet guide portion is communicated with the air inlet pipe, and the first air outlet guide portion and the second air outlet guide portion are distributed on two sides of the air inlet guide portion to respectively discharge air towards two sides of the driven wheel assembly.

In some examples of the present invention, the first air outlet guiding portion is located on a side of the second air outlet guiding portion away from the driving wheel assembly, and the air guide sleeve is further provided with a third air outlet guiding portion, which is disposed below the first air outlet guiding portion and is used for guiding the air guided by the first air outlet guiding portion.

An all-terrain vehicle according to the utility model comprises: the continuously variable transmission of an all-terrain vehicle described above.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a first angle of a continuously variable transmission according to an embodiment of the present invention;

FIG. 2 is a structural schematic diagram of a second angle of a continuously variable transmission according to an embodiment of the present invention;

FIG. 3 is an exploded view of a continuously variable transmission according to an embodiment of the present invention;

FIG. 4 is a schematic airflow direction diagram of a continuously variable transmission according to an embodiment of the present invention;

FIG. 5 is a first angular cross-sectional view of a continuously variable transmission according to an embodiment of the present invention;

fig. 6 is a second angle cross-sectional view of a continuously variable transmission according to an embodiment of the present invention.

Reference numerals:

1. a continuously variable transmission;

10. a housing; 11. an air inlet pipe; 110. a first tube section; 111. a second tube section; 112. a first clamping part; 113. a second clamping part; 12. an air outlet pipe; 13. a housing; 14. an inner shell; 140. a third clamping connection part;

20. a drive wheel assembly; 30. a driven wheel assembly; 31. a drive belt; 40. a pod; 41. a suction chamber; 42. a fourth clamping part; 43. a through hole; 44. an air inlet guide part; 45. a first air outlet flow guide part; 46. a second air outlet flow guide part; 47. A third air outlet flow guide part; 2. a crankcase.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

The continuously variable transmission 1 of an all-terrain vehicle according to an embodiment of the utility model is described below with reference to fig. 1-6.

As shown in fig. 1 to 6, the continuously variable transmission 1 of an all-terrain vehicle according to an embodiment of the present invention includes: the housing 10, the driving wheel assembly 20, the driven wheel assembly 30 and the air guide sleeve 40. The housing 10 can play a role in installation and protection, and the driving wheel assembly 20, the driven wheel assembly 30 and the air guide sleeve 40 are arranged in the housing 10, so that the driving wheel assembly 20, the driven wheel assembly 30 and the air guide sleeve 40 can be prevented from being damaged due to the contact with foreign objects. A transmission belt 31 is arranged between the driven wheel assembly 30 and the driving wheel assembly 20, so that the driven wheel assembly 30 is in transmission fit with the driving wheel assembly 20, and the contact radius between the driven wheel assembly 30 and the driving wheel assembly 20 as well as the transmission belt 31 is changed, so that the transmission ratio is continuously changed, and the stepless speed change of the stepless speed changer 1 is realized. The air guide sleeve 40 can guide the airflow entering the housing 10, so that the interior of the continuously variable transmission 1 can be cooled better.

As shown in fig. 3 and 5, the air guide sleeve 40 is located at one axial side of the driven wheel assembly 30, the air guide sleeve 40 is provided with a through hole 43, and the driven wheel assembly 30 penetrates through the through hole 43. Be provided with the through-hole 43 at kuppe 40, wear to establish through-hole 43 from driving wheel subassembly 30 can rotate moreover, and kuppe 40, follow driving wheel subassembly 30 and casing 10 can inject the chamber 41 that induced drafts of relative sealing jointly like this, and after driving wheel subassembly 30 removed the direction of crankcase 2, induced draft can produce the negative pressure in the chamber 41 to external cold air enters into the chamber 41 that induced drafts under the negative pressure effect, takes away the high temperature heat that driving belt 31 department produced.

Specifically, when the engine is started and is in an acceleration condition, under the action of the centrifugal force of the balls, the driving wheel assembly 20 will move towards the direction of the crankcase 2 against the action of the spring, so that the contact diameter between the driving belt 31 and the driving wheel assembly 20 is expanded along the radial direction, at the same time, the driven wheel assembly 30 will move towards the direction of the crankcase 2 under the action of the friction force of the driving belt 31, and the air guide sleeve 40 is located at one axial side of the driven wheel assembly 30, so that the air guide sleeve 40, the housing 10 and at least part of the driven wheel assembly 30 will form a relatively closed air suction cavity 41, therefore, when the driven wheel assembly 30 moves towards the direction of the crankcase 2, negative pressure is generated, external cold air enters the air suction cavity 41 under the action of the negative pressure, high-temperature heat generated at the driving belt 31 is taken away, and blades are distributed on the end face of the driven wheel assembly 30 and the end face of the driving wheel assembly 20, under the combined action of the rotation of the blades and the movement of the driving wheel assembly 20 towards the direction of the crankcase 2, the cooled hot air can be better guided out of the housing 10.

As shown in fig. 1, 2 and 5, the casing 10 has an air inlet duct 11 and an air outlet duct 12, and cool air enters the suction chamber 41 from the air inlet duct 11, and cooled hot air is emitted from the air outlet duct 12 to the outside of the casing 10. Wherein, the air-supply line 11 sets up in the upper end of the chamber 41 that induced drafts, and the air-supply line 11 is linked together with the chamber 41 that induced drafts, set up like this, the air-supply line 11 is closer with the position of the chamber 41 that induced drafts, can be better, make outside cold wind enter into the chamber 41 that induced drafts through the air-supply line 11 faster, and go out tuber pipe 12 and set up in one side that the driven pulley subassembly 30 was kept away from to action wheel subassembly 20, cold wind is after getting into the chamber 41 that induced drafts like this, just can pass through driving belt 31, take away the high temperature heat that driving belt 31 department produced, then just discharge from going out tuber pipe 12. Therefore, the temperature in the continuously variable transmission 1 can be reduced, the heat dissipation effect of the continuously variable transmission 1 is better, the heat dissipation of the position of the transmission belt 31 is more comprehensive, the service life of the transmission belt 31 is prolonged, and the reliability of an engine is improved.

As shown in fig. 2, 3 and 5, the air inlet duct 11 includes: the first pipe section 110 is communicated with the second pipe section 111, the first pipe section 110 is vertically arranged, the first pipe section 110 is communicated with the air suction cavity 41, the second pipe section 111 is transversely arranged, and the second pipe section 111 extends in a direction far away from the first pipe section 110. That is, the external cold air firstly passes through the second pipe section 111, then enters the first pipe section 110, and finally enters the air suction cavity 41, so that the effect of cooling the inside of the continuously variable transmission 1 is achieved. And first pipe section 110 sets up vertically, and second pipe section 111 sets up transversely, and second pipe section 111 extends towards the direction of keeping away from first pipe section 110 moreover, is convenient for set up first pipe section 110 and second pipe section 111 on casing 10 like this, and the setting like this also can be better with outside cold wind suction chamber 41 in, makes the cooling effect better.

Further, as shown in fig. 2 and 3, the first pipe section 110 is provided with a first clamping portion 112, the second pipe section 111 is provided with a second clamping portion 113, and the first clamping portion 112 and the second clamping portion 113 are in clamping fit. The first pipe section 110 is provided with a first clamping portion 112, and the second pipe section 111 is provided with a second clamping portion 113, so that the first clamping portion 112 can be clamped on the second clamping portion 113, and the first pipe section 110 and the second pipe section 111 are connected into a whole to facilitate air inlet of the air inlet pipe 11. Wherein, first joint portion 112 can be the fixture block, and is provided with the draw-in groove on the second joint portion 113, and the fixture block card is established in the draw-in groove, sets up simple structure like this, also can be more simple and convenient during the operation moreover.

In addition, as shown in fig. 1-4, the outlet duct 12 is disposed longitudinally, and the outlet duct 12 extends away from the driven wheel assembly 30. It can be understood that, outside cold wind is after getting into air suction cavity 41, can flow towards the direction of going out tuber pipe 12, and it vertically sets up to go out tuber pipe 12, and it extends to keep away from the direction of following driving wheel subassembly 30 to go out tuber pipe 12 orientation, because follow driving wheel subassembly 30 and air suction cavity 41 are close to the setting, cold wind can be earlier through following driving wheel subassembly 30, then the orientation of keeping away from driving wheel subassembly 30 leads to action wheel subassembly 20 department, discharge from air outlet pipe 12 at last, and this in-process, cold wind can be through setting up in the driving belt 31 of following driving wheel subassembly 30 and action wheel subassembly 20, thereby can take away a large amount of heats that produce on the driving belt 31, the life of extension driving belt 31, the reliability of engine is improved.

Specifically, as shown in fig. 2, 3 and 5, the housing 10 includes: the outer shell 13 and the inner shell 14, the outer shell 13, the air guide sleeve 40 and the driven wheel assembly 30 jointly define an air suction cavity 41, the first pipe section 110 and the air outlet pipe 12 are arranged on the outer shell 13, and the second pipe section 111 is arranged on the inner shell 14. The outer shell 13 and the air guide sleeve 40 define an air suction cavity 41, so that the whole structure of the continuously variable transmission 1 is conveniently arranged, the first pipe section 110 is arranged on the outer shell 13, the first pipe section 110 can be conveniently communicated with the air suction cavity 41, the second pipe section 111 is arranged on the inner shell 14, the second pipe section 111 is conveniently arranged, the second pipe section 111 is conveniently communicated with the first pipe section 110, and external cold air can better and quickly enter the air suction cavity 41. In addition, the air outlet pipe 12 is arranged on the shell 13, so that the air outlet pipe 12 is convenient to arrange, and cold air can comprehensively pass through the inside of the shell 10 and then enter the air outlet pipe 12, so that the cooling effect of the continuously variable transmission 1 can be improved.

Optionally, as shown in fig. 3, the inner shell 14 is provided with a third clamping portion 140, the air guide sleeve 40 is provided with a fourth clamping portion 42, and the third clamping portion 140 and the fourth clamping portion 42 are in clamping fit. Be provided with third joint portion 140 at inner shell 14, and kuppe 40 is provided with fourth joint portion 42, and third joint portion 140 can the joint on fourth joint portion 42 like this to make kuppe 40 fix on inner shell 14, promote kuppe 40's installation stability, the wind-guiding of the kuppe 40 of being convenient for. The third clamping portion 140 can be a clamping groove, the fourth clamping portion 42 can be a clamping block, and the clamping block is clamped in the clamping groove.

In addition, as shown in fig. 3, the air guide sleeve 40 is provided with an air inlet guide portion 44, a first air outlet guide portion 45 and a second air outlet guide portion 46, the air inlet guide portion 44 is communicated with the air inlet pipe 11, and the first air outlet guide portion 45 and the second air outlet guide portion 46 are distributed on two sides of the air inlet guide portion 44 to respectively discharge air towards two sides of the driven wheel assembly 30. The air inlet guide part 44 is communicated with the air inlet pipe 11, so that external cold air can be guided into the air suction cavity 41 along the air inlet guide part 44 after passing through the air inlet pipe 11, the air inlet speed of the external cold air can be increased, and the overall cooling speed of the continuously variable transmission 1 can be increased. And first air-out water conservancy diversion portion 45 and second air-out water conservancy diversion portion 46 distribute in the both sides of air inlet water conservancy diversion portion 44, like this the cold wind in the air suction chamber 41 can first air-out water conservancy diversion portion 45 and second air-out water conservancy diversion portion 46 pass through from the upper and lower both ends of action wheel subassembly 20 and follow driving wheel subassembly 30, thereby can be better, take away the inside heat of casing 10 more comprehensively, make buncher 1's radiating effect better, it is also more comprehensive to the heat dissipation of drive belt 31 department, the life of extension drive belt 31, the reliability of engine is improved.

It should be noted that, as shown in fig. 3 and 4, the first air outlet guiding portion 45 is located on one side of the second air outlet guiding portion 46 away from the driving wheel assembly 20, the guiding cover 40 is further provided with a third air outlet guiding portion 47, the third air outlet guiding portion 47 is disposed below the first air outlet guiding portion 45, and the third air outlet guiding portion 47 is used for guiding the air guided by the first air outlet guiding portion 45. Set up first air-out water conservancy diversion portion 45 in one side that driving wheel subassembly 20 was kept away from to second air-out water conservancy diversion portion 46, when the cold wind in the chamber 41 that induced drafts like this passes through from driving wheel subassembly 30, can pass through to the both sides direction from driving wheel subassembly 30 to can form two routes and dispel the heat the cooling to buncher 1, make buncher 1's radiating effect better. Third air-out guiding portion 47 is disposed below first air-out guiding portion 45, and third air-out guiding portion 47 is used for guiding the air guided by first air-out guiding portion 45, that is, third air-out guiding portion 47 can guide the air guided by first air-out guiding portion 45 to driving wheel assembly 20 from below, so that the air below can take away the heat below driving wheel assembly 20, and the heat dissipation comprehensiveness of continuously variable transmission 1 is improved.

An all-terrain vehicle according to an embodiment of the utility model comprises: the continuously variable transmission 1 of the all-terrain vehicle described in the above embodiment.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A continuously variable transmission for an all terrain vehicle, comprising:

a housing having an air inlet duct and an air outlet duct;

the driving wheel assembly is arranged in the shell;

the driven wheel assembly is arranged in the shell and is in transmission fit with the driving wheel assembly;

the air guide sleeve is arranged in the shell and located on one axial side of the driven wheel assembly, the air guide sleeve is provided with a through hole, the driven wheel assembly penetrates through the through hole, and the air guide sleeve, the driven wheel assembly and the shell define a sealed air suction cavity together.

2. The variable transmission of an all-terrain vehicle of claim 1, wherein the air inlet duct is disposed at an upper end of the air suction chamber and communicates with the air suction chamber, and the air outlet duct is disposed on a side of the drive wheel assembly remote from the driven wheel assembly.

3. The all-terrain vehicle continuously variable transmission of claim 1, wherein the air intake duct comprises: the first pipe section is communicated with the second pipe section, the first pipe section is vertically arranged and communicated with the air suction cavity, and the second pipe section is transversely arranged and extends towards the direction far away from the first pipe section.

4. The variable transmission of an all-terrain vehicle of claim 3, characterized in that the first tube section is provided with a first snap-fit portion, the second tube section is provided with a second snap-fit portion, and the first and second snap-fit portions snap-fit.

5. The all-terrain vehicle continuously variable transmission of claim 3, wherein the outlet duct is longitudinally disposed and extends away from the driven wheel assembly.

6. The all-terrain vehicle continuously variable transmission of claim 5, characterized in that the housing comprises: the outer shell and the inner shell, the outer shell with the kuppe is injectd the air suction cavity, first pipeline section with go out the tuber pipe set up in the outer shell, the second pipeline section set up in the inner shell.

7. The variable transmission of an all-terrain vehicle of claim 6, characterized in that the inner housing is provided with a third snap-fit portion, the pod is provided with a fourth snap-fit portion, and the third and fourth snap-fit portions snap-fit.

8. The all-terrain vehicle stepless transmission of claim 1, characterized in that an air inlet guide part, a first air outlet guide part and a second air outlet guide part are arranged on the air guide sleeve, the air inlet guide part is communicated with the air inlet pipe, and the first air outlet guide part and the second air outlet guide part are distributed on two sides of the air inlet guide part to respectively exhaust air towards two sides of the driven wheel assembly.

9. The all-terrain vehicle stepless transmission of claim 8, characterized in that the first air outlet guide portion is located at a side of the second air outlet guide portion away from the driving wheel assembly, and the air guide cover is further provided with a third air outlet guide portion which is arranged below the first air outlet guide portion and is used for guiding the air guided by the first air outlet guide portion.

10. An all-terrain vehicle, comprising: a continuously variable transmission of an all-terrain vehicle as claimed in any of claims 1-9.