Filter element of continuously variable transmission system

Abstract

The utility model provides a filtering piece of a stepless speed change system, the stepless speed change system is installed in a transmission case, the transmission case is provided with a transmission case cover, a cooling air inlet, a cooling air guide cover arranged on the outer side of the transmission case cover and an air guide hole for external cooling air to enter, the filtering piece comprises a first filtering net body, a second filtering net body and a third filtering net body, the filter is used for filtering outside cooling air; the second filter screen body and the first filter screen body are stacked, and the second filter screen body is used for filtering external cooling air; the frame is used for fixing the first filter screen body and the second filter screen body; wherein the filtering piece is arranged on the transmission case in a manner of being capable of being removed.

Description

TECHNICAL FIELD

[0001] The utility model mainly provides a kind of filter of stepless speed change system, especially the filter of quick installation replacement, avoid the entry of dust or foreign matter in air into transmission case, to ensure the cleanliness of cooling air, so as to improve the filter of stepless speed change system of stepless speed change system use effect. BACKGROUND

[0002] Motorcycle and car all belong to on-road vehicle, and the design difficulty and manufacturing cost of car are higher except that the volume is large and the weight is heavy, which cannot be pushed by one person alone; Compared with motorcycle, motorcycle has the advantages of action sensitivity, easy to push by one person, lower cost and the like. Therefore, motorcycle has its universality in narrow and crowded areas.

[0003] And the belt type stepless speed change transmission mechanism equipped in general motorcycle is one of important factors for its convenient operation. When motorcycle drives at high speed, the mechanism in transmission case will inevitably generate high temperature, so cooling design must be provided to reduce the temperature of transmission mechanism, and the cooling air introduced into transmission case must be filtered first to avoid damaging transmission mechanism, therefore, transmission case must be equipped with a filter device, and the known air inlet hole of air inlet cover faces the front of vehicle, and the positive pressure caused by vehicle driving is beneficial to sucking cooling air into stepless speed change system chamber, but it is also easy to suck outside dust into stepless speed change system chamber, causing filter screen to easily accumulate dust, shortening the service life of filter screen, making stepless speed change system chamber easy to enter dust, causing belt wear and damage to stepless speed change system. INVENTION CONTENTS

[0004] The utility model provides a kind of filter of stepless speed change system, by quick installation replacement filter, provide the clean cooling air of better filtering effect, can provide better cooling effect to stepless speed change system.

[0005] The utility model provides a kind of filter of stepless speed change system, by quick installation replacement filter, provide the clean cooling air of better filtering effect, can provide better cooling effect to stepless speed change system.

[0006] In an embodiment of the utility model, the external cooling air sequentially flows through the filter piece and the cooling air inlet via the air guide hole, enters the transmission case, and sequentially flows through the first filter screen body and the second filter screen body at the filter piece to complete filtration.

[0007] In an embodiment of the utility model, the first filter screen body has a larger aperture than the second filter screen body.

[0008] In an embodiment of the utility model, the first filter screen body has greater rigidity than the second filter screen body.

[0009] In an embodiment of the utility model, the external frame has a plurality of tenons corresponding to a plurality of mortises of the body frame.

[0010] In an embodiment of the utility model, the frame has a body frame arranged in a mounting seat formed between the transmission case cover and the cooling air guide cover, the mounting seat being adjacent to the air guide hole; and an external frame connected to the body frame, and the first filter screen body and the second filter screen body being arranged between the body frame and the external frame.

[0011] In an embodiment of the utility model, the body frame has a plurality of positioning members, the positioning members being arranged in or not arranged in apertures on the second filter screen body, so that the body frame and the external frame press against the second filter screen body to fix the second filter screen body, thereby preventing the external cooling air from deforming or displacing the second filter screen body.

[0012] In an embodiment of the utility model, the body frame has a plurality of ribs, and the ribs do not overlap the air guide hole.

[0013] In an embodiment of the utility model, the filter piece further includes a positioning hole, so that the filter piece is fixedly arranged in the mounting seat.

[0014] In an embodiment of the utility model, the filter piece further includes a plurality of screw locking holes, so that the filter piece is locked on the cooling air guide cover.

[0015] The utility model discloses a filter piece of a stepless speed change system convenient to assemble and disassemble, which is provided with a dustproof filter inside the cooling air guide cover to improve the shortcoming that the conventional filter piece is easy to accumulate dust but not easy to replace. After the cooling air is introduced through the air guide hole, the first filter screen body filters the dust and impurities with larger particles, and the second filter screen body performs second filtration, so that the dust and impurities in the cooling air are effectively reduced, the belt is prevented from being abraded and the stepless speed change system is prevented from being damaged after the stepless speed change system is contaminated, a better cooling effect is achieved, and the filter piece can be integrally disassembled and replaced, which is extremely convenient for installation and use of the filter piece. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a disassembled schematic view of a filter member of a continuously variable transmission system according to the present application;

[0017] Figure 2 is a schematic view of a cooling air guide cover and a filter member in a continuously variable transmission system according to the present application;

[0018] Figure 3 is a schematic view of a filter member of a continuously variable transmission system according to the present application used in a vehicle.

[0019] List of reference signs

[0020] 1 continuously variable transmission system

[0021] 2 filter member

[0022] 21 body frame

[0023] 211 positioning member

[0024] 212 rib

[0025] 22 outer frame

[0026] 221 tenon

[0027] 23 first filter mesh body

[0028] 24 second filter mesh body

[0029] 25 positioning hole

[0030] 26 screw locking hole

[0031] 3 cooling air guide cover

[0032] 31 mounting seat

[0033] 4 straddle-type vehicle

[0034] 41 vehicle frame unit

[0035] 42 front wheel

[0036] 43 steering mechanism

[0037] 44 seat cushion

[0038] 45 storage box

[0039] 46 fuel tank

[0040] 47 rear wheel. DETAILED DESCRIPTION

[0041] In order to make the above features and advantages of the present application more obvious and easy to understand, the following embodiments are specifically described, and the detailed description is made below with reference to the accompanying drawings.

[0042] Figure 1 is a disassembled schematic view of a filter member of a continuously variable transmission system according to the present application. Figure 1 In the present application, a filter member 2 of a continuously variable transmission system is installed in a transmission case, which has a transmission case cover, a cooling air inlet, a cooling air guide cover arranged outside the transmission case cover, and a guide hole for allowing external cooling air to enter. The filter member 2 comprises a first filter screen body 23 for filtering the external cooling air, a second filter screen body 24 arranged between the body frame 21 and the outer frame 22 in a stacked manner with the first filter screen body 23 for filtering the external cooling air, and a frame for fixing the first filter screen body 23 and the second filter screen body 24. The filter member 2 is integrally and removably arranged on the transmission case.

[0043] The continuously variable transmission system further comprises a driving disc set, a driven disc set, and a transmission belt set connected therebetween.

[0044] The driving disc set and the driven disc set are sleeved with a transmission belt set, which can be a belt or a chain. The driven disc set is connected with a transmission gear set. The driving disc set can transmit power to the driven disc set at the other end of the transmission case through the transmission belt set, and finally transmit the power to the rear wheel shaft through the transmission gear set to drive the rear wheel.

[0045] The continuously variable transmission system is installed in the transmission case. When the cooling air guide cover is provided with a guide hole for allowing the external cooling air to enter in the direction of the vehicle body side, the external cooling air is filtered by the filter member 2 and introduced into the transmission case cover. In this way, dust or foreign matter in the external cooling air can be prevented from entering the transmission case, so as to ensure the cleanliness of the cooling air and improve the use effect of the continuously variable transmission system.

[0046] The cooling air guide cover is located on the side of the transmission case cover. The guide hole is directed towards the front or side of the vehicle body to facilitate the intake of external cooling air.

[0047] The guide hole is provided with a plurality of guide pieces in the form of a fence slightly towards the up-down direction of the vehicle body. The guide pieces can divide the guide hole into a plurality of small external cooling air inlets. The guide pieces are arranged in a slightly parallel manner at an angle towards the rear side of the vehicle body.

[0048] In the present embodiment, the external cooling air sequentially flows through the filter member 2 and the cooling air inlet through the guide hole and enters the transmission case. The external cooling air sequentially flows through the first filter screen body 23 and the second filter screen body 24 in the filter member 2 to complete the filtering.

[0049] In the present embodiment, the aperture of the first filter screen body 23 is larger than that of the second filter screen body 24.

[0050] The first filter screen has a larger aperture, which is conducive to the entry of the external cooling wind.

[0051] In this embodiment, the first filter screen body 23 is more rigid than the second filter screen body 24, which can filter larger particles of dust or impurities and improve the installation stability of the second filter screen body 24.

[0052] The impurities also include external fine-grained sand or stone.

[0053] The first filter screen body 23 has a plurality of filter holes, which can be composed of, but not limited to, polypropylene, polyethylene terephthalate, silica gel, rubber, plastic, metal, or any combination of the above.

[0054] The second filter screen body 24 has a plurality of filter holes, which can be composed of, but not limited to, paper, foam, cotton, spun glass fiber, or other known filter materials, woven or non-woven materials, synthetic or natural materials, or any combination of the above.

[0055] In this embodiment, the frame has a body frame 21 arranged in a mounting seat formed between the transmission case cover and the cooling wind guide cover, the mounting seat being adjacent to the air guide hole; and an outer frame 22 connected with the body frame 21, and the first filter screen body 23 and the second filter screen body 24 are arranged between the body frame 21 and the outer frame 22.

[0056] In this embodiment, the outer frame 22 has a plurality of tenons 221 corresponding to a plurality of mortises of the body frame 21.

[0057] In this embodiment, the body frame 21 has a plurality of positioning members 211, which can or can not be provided with apertures on the second filter screen body 24, so that the body frame 21 and the outer frame 22 press against the second filter screen body 24 to fix the second filter screen body 24, avoiding deformation or displacement of the second filter screen body 24 caused by the external cooling wind.

[0058] In this embodiment, the body frame 21 has a plurality of ribs 212, and the ribs 212 do not overlap the air guide hole.

[0059] In this embodiment, the filter member 2 also includes a positioning hole 25, so that the filter member 2 is fixedly arranged in the mounting seat.

[0060] In this embodiment, the filter member 2 also includes a plurality of screw locking holes 26, so that the filter member 2 is locked on the mounting seat.

[0061] In this embodiment, the filter 2 also includes other equivalent locking means to lock the filter 2 to the mounting seat.

[0062] In this embodiment, the transmission case cover and the cooling air guide cover can be combined by screwing or plastic buckle mounting.

[0063] Please refer to Figure 2 , Figure 2 is a schematic view of a cooling air guide cover 3 and a filter 2 of a stepless speed change system according to the present application. The cooling air guide cover 3 has a guide hole for allowing external cooling air to enter. The filter 2 includes a body frame 21 arranged in a mounting seat 31 formed between the transmission case cover and the cooling air guide cover 3, the mounting seat 31 being adjacent to the guide hole; an outer frame 22 connected to the body frame 21; a first filter screen 23 for filtering the external cooling air; and a second filter screen 24 stacked between the body frame 21 and the outer frame 22 and arranged in the mounting seat 31, for filtering the external cooling air. The filter 2 can be integrally removed from the transmission case.

[0064] In this embodiment, the external cooling air flows through the filter 2 and the cooling air inlet in sequence through the guide hole and enters the transmission case.

[0065] In this embodiment, the external cooling air flows through the first filter screen 23 and the second filter screen 24 in sequence in the filter 2 to complete the filtering.

[0066] In this embodiment, the first filter screen 23 has a larger hole diameter than the second filter screen 24.

[0067] Because the first filter screen has a larger hole diameter, it is beneficial for the external cooling air to enter.

[0068] In this embodiment, the first filter screen 23 has greater rigidity than the second filter screen 24, which can filter larger particles of dust or impurities and improve the installation stability of the second filter screen 24.

[0069] The impurities also include external fine-grained sand or stone.

[0070] The first filter screen 23 has a plurality of filter holes, which can be composed of, but not limited to, PP (polypropylene), PET (Polyethylene terephthalate), silica gel, rubber, plastic, metal, or any combination of the above.

[0071] The second filter screen body 24 has a plurality of filter holes and can be composed of paper, foam, cotton, spun glass fiber, or other known filter materials, woven or non-woven materials, synthetic or natural materials, or any combination of the above.

[0072] In this embodiment, the outer frame 22 has a plurality of tenons 221 corresponding to the mortises of the body frame 21.

[0073] In this embodiment, the body frame 21 has a plurality of positioning members 211 that can or can not pass through the apertures on the second filter screen body 24, so that the body frame 21 and the outer frame 22 press against the second filter screen body 24 to fix the second filter screen body 24, avoiding deformation or displacement of the second filter screen body 24 caused by external cooling air.

[0074] In this embodiment, the body frame 21 has a plurality of ribs 212, and the ribs 212 do not overlap the air guide holes.

[0075] In this embodiment, the filter member 2 further includes a positioning hole 25, so that the filter member 2 is fixedly arranged on the mounting seat 31.

[0076] In this embodiment, the filter member 2 further includes a plurality of screw locking holes 26, so that the filter member 2 is locked on the mounting seat 31.

[0077] In this embodiment, the filter member 2 further includes other equivalent locking methods, so that the filter member 2 is locked on the mounting seat 31.

[0078] In this embodiment, the transmission case cover and the cooling air guide cover 3 can be combined by screwing or plastic buckle mounting.

[0079] Please refer to Figure 3 , Figure 3 is a schematic view of a filter member of a stepless speed change system according to the present application used in a vehicle.

[0080] The utility model discloses a kind of stepless variable speed systems, including cooling wind guide cover, filter element, cooling wind inlet and drive plate group 11, cooling wind guide cover is connected with filter element, cooling wind inlet is connected with filter element, drive plate group 11 is connected with filter element.

[0081] When engine unit starts, external cooling wind is sucked into cooling wind guide cover by the air guide hole of cooling wind guide cover from the oblique direction of vehicle body front side, larger particle dust and impurities are filtered by first filter screen body 23 through filter element 2, second filtration is carried out by second filter screen body 24, and finally external cooling wind after filtration is sucked into transmission case through cooling wind inlet to carry out cooling operation to stepless variable speed system 1, so that the use effect of stepless variable speed system 1 can be improved.

[0082] In summary, the filter element of the stepless variable speed system of the utility model is equipped with two layers of dustproof filters inside the cooling wind guide cover by a kind of multi-layer filter structure filter element of stepless variable speed system, and the dust accumulation of traditional filter element is improved. After cooling wind is introduced through air guide hole, larger particle dust and impurities are filtered by first filter element, and cooling wind after preliminary filtration is introduced into second filter element along cooling wind flow path, second filtration is carried out, dust and impurities in cooling wind are effectively reduced, belt wear or stepless variable speed system damage caused by dust entering stepless variable speed system is avoided, better cooling effect is achieved, and the density of first filter element is lower than the density of second filter element, which is beneficial to air inlet.

[0083] Although the utility model discloses the foregoing embodiment, however, it is not used to limit the utility model, any person skilled in the art, without departing from the spirit and scope of the utility model, equivalent replacement made by change and decoration, still be the patent protection range of the utility model.

Claims

1. A filter member for a continuously variable transmission system, characterized by, The stepless transmission system is installed in a transmission case, the transmission case has a transmission case cover, a cooling air inlet, a cooling air guide cover arranged outside the transmission case cover, and a guide hole for allowing external cooling air to enter, the filter comprises: a first filter screen body for filtering the external cooling air; a second filter screen body arranged in stack with the first filter screen body for filtering the external cooling air; and a frame for fixing the first filter screen body and the second filter screen body; wherein the filter is integrally and removably arranged on the transmission case.

2. The filter for a continuously variable transmission system according to claim 1, wherein The external cooling air sequentially flows through the filter and the cooling air inlet via the guide hole to enter the transmission case, and sequentially flows through the first filter screen body and the second filter screen body at the filter to complete the filtering.

3. The filter for a continuously variable transmission system according to claim 1, wherein The first filter screen body has a larger pore size than the second filter screen body.

4. The filter for a continuously variable transmission system according to claim 1, wherein The first filter screen body has a larger rigidity than the second filter screen body.

5. The filter for a continuously variable transmission system according to claim 1, wherein The frame has a body frame arranged in a mounting seat formed between the transmission case cover and the cooling air guide cover, the mounting seat is adjacent to the guide hole, and an outer frame is connected with the body frame, and the first filter screen body and the second filter screen body are arranged between the body frame and the outer frame.

6. The filter for a continuously variable transmission system according to claim 5, wherein The outer frame has a plurality of tenons corresponding to a plurality of mortises of the body frame.

7. The filter member of a continuously variable transmission according to claim 5, wherein The body frame has a plurality of positioning members, the positioning members can or can not be arranged in apertures on the second filter screen body, so that the body frame and the outer frame press against the second filter screen body to fix the second filter screen body, avoiding deformation or displacement of the second filter screen body caused by the external cooling air.

8. The filter member of a continuously variable transmission according to claim 5, wherein The body frame has a plurality of ribs, and the ribs do not overlap the guide hole.

9. The filter member of a continuously variable transmission according to claim 5, wherein The filter further comprises a positioning hole for fixing the filter to the mounting seat.

10. The filter for a continuously variable transmission system according to claim 1, wherein The filter further comprises a plurality of screw locking holes for locking the filter to the cooling air guide cover.

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