TWI758076B - Cooling mechanism of continuously variable transmission system - Google Patents

Abstract

The present invention relates to a cooling mechanism for a continuously variable speed change system. The stepless speed change system is installed in a transmission box. The stepless speed change system includes a drive group disk, a passive disk group and a drive disk connected to the drive disk. The transmission belt between the group and the passive disk group; the transmission case has a transmission case cover, the transmission case cover is provided with a cooling air inlet on the side of the drive group disk of the stepless speed change system, and the outer side of the transmission case cover is covered. A cooling air guide cover is provided; the cooling air guide cover is provided with air guide holes for the entry of external cooling air toward the side of the vehicle body; thereby, the external cooling air can be prevented from being forced from the front of the vehicle body due to the driving of the vehicle into the transmission box, so as to ensure the cleanliness of the cooling air, so as to improve the use effect of the continuously variable transmission system.

Description

Cooling mechanism of continuously variable transmission system

The present invention relates to a cooling mechanism for a stepless speed change system, in particular, it can prevent the external cooling air from being forced into the transmission box from the front of the vehicle body due to the running of the vehicle, so as to ensure the cleanliness of the cooling air and improve the The cooling mechanism of the stepless speed change system is the effect of the step speed change system.

For the cooling mechanism of the continuously variable transmission system used in vehicles, the applicant has applied for the domestic invention patent case No. TWI379048, which has a better cooling effect for the continuously variable transmission system used in vehicles. However, the applicant upholds the spirit of excellence and prays that the continuously variable transmission system can provide better cooling effect.

The main purpose of the present invention is to provide a cooling mechanism for a continuously variable transmission system, thereby improving the cleanliness of the cooling air for cooling the continuously variable transmission system.

To this end, some technical means of the present invention are to provide a cooling mechanism for a continuously variable transmission system. The continuously variable transmission system is installed in a transmission case, and the continuously variable transmission system includes a drive group disk and a passive disk. set and a transmission belt-like member connected between the drive disk set and the driven disk set; the transmission case has a transmission case cover, and the transmission case is covered on the surface of the continuously variable transmission system. A cooling air inlet is provided on the side of the drive group disk, and a cooling air guide cover is provided on the outer cover of the transmission case cover;

Therefore, some technical means of the present invention are to provide a cooling mechanism of a continuously variable transmission system, the air guide hole of the cooling air guide cover is located outside the passive disk group of the continuously variable transmission system.

For this reason, some technical means of the present invention are to provide a cooling mechanism for a continuously variable speed change system. The air guide hole of the cooling air guide cover is provided with a plurality of guide pieces, and the guide pieces are directed toward The rear direction angle of the vehicle body side is arranged in a slightly parallel manner.

Therefore, some technical means of the present invention are to provide a cooling mechanism of a continuously variable transmission system, and a plurality of guide ribs are arranged in the cooling air guide cover.

Therefore, some technical means of the present invention are to provide a cooling mechanism of a continuously variable transmission system, wherein the plurality of guide ribs can define at least one guide channel.

Therefore, some technical means of the present invention are to provide a cooling mechanism of a continuously variable transmission system, and a filter element is arranged in the cooling air guide cover.

Therefore, some technical means of the present invention are to provide a cooling mechanism of a continuously variable transmission system, the filter element has a frame and a filter unit arranged on the frame.

For this reason, some technical means of the present invention are to provide a cooling mechanism for a stepless speed change system, the transmission case cover is provided with a plurality of locking posts, and the cooling air guide cover is provided with a plurality of locking posts corresponding to the locking posts. Pay column.

For this reason, some technical means of the present invention are to provide a cooling mechanism for a stepless speed change system, the transmission case cover is provided with a plurality of locking posts, and the cooling air guide cover is provided with a plurality of locking posts corresponding to the locking posts. Pillar; the cooling air guide cover has a filter element, the filter element is located in the Outside the cooling air inlet.

Therefore, some technical means of the present invention are to provide a cooling mechanism of a continuously variable transmission system, the filter element has a frame and a filter unit arranged on the frame, the frame has perforations, and the filter element is connected to the cooling fan. The guide cover is jointly locked on the transmission case cover.

The present invention achieves the effect of some technical means, thereby preventing the external cooling air from being forced to enter the transmission box from the front of the vehicle body due to the running of the vehicle, so as to ensure the cleanliness of the cooling air, so as to improve the cooling air. The effect of using the stage shifting system.

The present invention achieves the effect of some technical means, whereby the flow rate of the cooling air can be moderated, and the cleanliness of the cooling air entering the transmission box can be improved.

The present invention achieves the effect of some technical means, thereby improving the cleanliness of the cooling air entering the cooling air guide cover and the transmission case cover.

The present invention achieves the effect of some technical means, whereby the flow rate of the cooling air can be moderated and the flow direction of the cooling air can be ensured, thereby improving the cleanliness of the cooling air entering the transmission box.

The present invention achieves functions through some technical means, thereby facilitating the connection between the cooling air guide cover and the transmission case cover.

The present invention achieves the effect of some technical means, thereby facilitating the joint locking effect of the filter element, the cooling air guide cover and the transmission case cover.

1: Continuously variable speed system

11: drive disk group

111: Sliding disc

112: Fixed plate

1121: Blade

113: Limit board

114: Ball

12: Passive disk group

13: Transmission belt

2: Gearbox

21: Transmission cover

211: Locking column

22: Cooling air inlet

23: The first air outlet

24: The second air outlet

3: Engine unit

31: Crankcase

311: Left crankcase

32: Crankshaft

321: Shaft

33: Pistons

4: Transmission gear set

5: Cooling air guide cover

51: lock pay column

52: Air guide hole

521: Guide piece

53: Guide ribs

531: diversion channel

54: Avoid recesses

6: Filter

61: Frame

611: Perforation

62: Filter unit

7: Straddle vehicles

71: Frame unit

72: Front Wheel

73: Steering mechanism

74: Seat Cushion

75: storage box

76: Fuel tank

77: Rear Wheel

8: Swing arm

S: locking element

[FIG. 1] is an exploded view of the transmission case and the cooling air guide cover of the present invention.

[Fig. 2] is a bottom view of the transmission case of the present invention.

[ Fig. 3 ] is a cross-sectional view of the transmission case and the cooling air guide cover of the present invention.

[Fig. 4] is an exploded view of the cooling air guide cover and the filter element of the present invention.

[Fig. 5] is a front view of the cooling air guide cover of the present invention.

[Fig. 6] is a schematic diagram of the cooling air flow of the stepless speed change system of the present invention.

[ Fig. 7 ] is a schematic diagram of the continuously variable transmission mechanism of the present invention applied to a vehicle.

[Fig. 8] is a sectional view of the engine unit and the continuously variable transmission mechanism of the vehicle shown in Fig. 7 of the present invention.

In order to make it easier for your examiners to understand the structure of the present invention and the effects that can be achieved, the following descriptions are provided in conjunction with the drawings;

First, please refer to FIGS. 3 and 8 , the continuously variable transmission system 1 of the present invention is installed in the transmission case 2 , and the transmission case 2 is provided with the left crankcase 311 of the crankcase 31 of the engine unit 3 and a transmission case The cover 21 is constituted. The continuously variable transmission system 1 includes a drive disk group 11 , a driven disk group 12 , and a transmission belt 13 connected between the drive disk group 11 and the driven disk group 1 .

As shown in FIGS. 3 and 8 , the continuously variable transmission system 1 is provided with a sliding plate 111 on the shaft 321 on one side of the crankshaft 32 of the engine unit 3 , and a fixed plate 112 is fixed on the opposite side of the sliding plate 111 . A limiting plate 113 is provided on the other side of the 111 away from the fixed plate 112 , and a plurality of balls 114 that can be rolled by centrifugal action are arranged between the sliding plate 111 and the limiting plate 113 . The outer side of the fixed disk 112 is provided with a plurality of blades 1121 with fan effects, whereby when the fixed disk 112 is driven to rotate by the crankshaft 32, the blades 1121 can become a cooling fan; the driving disk assembly 11 and the passive disk assembly 12 suites with a drive A belt 13, the transmission belt 13 can be a belt or a chain, and the driven disk set 12 is connected with a transmission gear set 4; the driving disk group 11 can transmit the power to the other end of the transmission box 2 through the transmission belt 13 on the driven disk set 12, and finally transmitted to the rear axle through the transmission gear set 4 to drive the wheels (not shown in the drawings).

As shown in FIGS. 1 , 2 , 3 , 4 and 5 , the transmission case cover 21 of the transmission case 2 is provided with a cooling air inlet 22 on the outer side of the blade 1121 of the fixed disk 112 of the driving disk assembly 11 , ie, external cooling The air system enters the transmission box 2 through the cooling air inlet 22 to cool the continuously variable transmission system 1 ; the transmission box 2 has a first opening between the driving disk group 11 and the passive disk group 12 toward the ground. The air outlet 23 and the second air outlet 24 are provided at the lower or rear position of the passive disk group 12, and the external cooling air enters the transmission box 2 through the cooling air inlet 22 to cool the continuously variable transmission system 1. After the operation, the hot air inside the transmission case 2 is discharged from the first air outlet 23 and the second air outlet 24 ; There are a plurality of locking posts 211 for a cooling air guide cover 5 . Two of the locking posts 211 are attached to the outer side of the transmission case cover 21 adjacent to the periphery of the cooling air inlet 22 , and the other is attached to the outer side of the transmission case cover 21 . The gearbox cover 21 is adjacent to the outer side of the driven disk pack 12 .

As shown in FIGS. 1 , 3 , 4 and 5 , the transmission case 2 is provided with a cooling air guide cover 5 on the outer side. Furthermore, the cooling air guide cover 5 is covered on the outer side of the transmission case cover 21 . ; The cooling air guide cover 5 is provided with at least one locking post 51 towards the side of the transmission case cover 21, the locking post 51 is arranged correspondingly to the locking post 211 of the transmission case cover 21, whereby the The locking element S is locked on the locking post 51 and the locking post 211, so that the cooling air guide cover 5 can be securely locked on the outer side of the transmission case cover 21 of the transmission case 2; the cool down The wind guide cover 5 is provided with an air guide hole 52 at the position corresponding to the passive disk group 12 of the stepless speed change system 1 for the entry of cold air from the outside. The air hole 52 is provided with a plurality of guide pieces 521 in the form of a fence slightly facing the upper and lower directions of the vehicle body. The plurality of guide pieces 521 can divide the air guide hole 52 into several small external cooling air inlets. Each piece of the guide pieces 521 is angled toward the rear of the vehicle body and arranged in a slightly parallel manner; the cooling air guide cover 5 is provided with a plurality of pieces of guide ribs in the air guide hole 52 toward the front of the vehicle body 53, a plurality of the guide ribs 53 can define at least one guide channel 531; because the opening direction of the air guide hole 52 of the cooling air guide cover 5 is opened toward the side of the vehicle body, and a plurality of the guide pieces 521 is set at an angle toward the rear of the vehicle body, so the external cooling air system enters the cooling air guide cover 5 through the air guide hole 52 in the rear direction of the vehicle body, and is then defined by the guide rib 53 The guide channel 531 that exits is guided, and flows between the cooling air guide cover 5 and the transmission case cover 21 of the transmission case 2 toward the front of the vehicle body, and further, enters the cooling air guide cover 5 The external cooling air between the transmission case cover 21 of the transmission case 2 is guided to the outside of the drive disk group 11 of the continuously variable transmission system 1 , and then the blade 1121 of the fixed disk 112 of the drive disk group 11 The rotation forms the negative pressure in the transmission case 2, and the external cooling air is sucked into the transmission case 2 through the cooling air inlet 22 to cool the stepless speed change system 1. The air outlet 23 and the second air outlet 24 are discharged out of the transmission case 2, so that the external cooling air used for cooling the continuously variable transmission system 1 can be cooled by the relatively clean external cooling air at the rear of the vehicle body when the vehicle is running. A gentler way to enter the transmission case 2 to cool the continuously variable transmission system 1, thereby reducing the entry of fine-grained sand or stone from the outside into the transmission case 2, and the fine-grained sand from the outside. Or the stone enters and enters between the cooling air guide cover 5 and the transmission case cover 21 through the air guide hole 52 together with the external cooling air. The cooling air system is guided to flow toward the cooling air inlet 22 at a relatively moderate speed, so the fine-grained sand or stone from the outside can fall to the bottom end of the cooling air guiding cover 5 by its own weight, thereby ensuring the entry into the cooling air inlet 22. The cleanliness of the cooling air at the cooling air inlet 22 . The cooling air guide cover 5 is recessed toward the ground with an avoidance recess 54 for avoiding other parts.

As shown in FIGS. 1 , 3 and 4 , the cooling air guide cover 5 is provided with a filter element 6 toward the cooling air inlet 22 side of the transmission case cover 21 , and further, the filter element 6 is accommodated in the cooling air inlet 22 side The wind guide cover 5 is provided at the locking post 51, and the filter element 6 has a frame 61 and a filter unit 62 arranged on the frame 61. The filter unit 62 can be filter cotton or filter paper. The frame 61 is provided with There is a fixing hole 611 corresponding to the locking column 51 , whereby the filter element 6 can be threaded onto the locking column 51 through the hole 611 and then locked together with the cooling air guide cover 5 . On the outer side of the transmission case cover 21 of the transmission case 2, and the filter element 6 is located just outside the cooling air inlet 22 of the transmission case cover 21, so that the filter element 6 can cool the outside air into the transmission case 2. The action of filtering is carried out inside, thereby ensuring that the fine sand and other debris from the outside do not enter the transmission case 2, so as to ensure that the stepless speed change system 1 is worn by the fine sand and dust from the outside.

As shown in FIGS. 7 and 8 , an embodiment of the present invention applied to a vehicle is illustrated by taking a straddle-type vehicle (motorcycle) 7 as an example. The straddle-type vehicle 7 has a frame unit 71 on which A power-generating engine unit 3 is connected, the front end of the frame unit 71 is supported with a front wheel 72 , and a steering wheel for steering the straddle vehicle 7 is provided above the front wheel 72 and supported on the frame unit 71 Mechanism 73, the rear end of the frame unit 71 is provided with a seat cushion 74 for the driver to sit on, and a storage box 75 for storing articles is provided below the seat cushion 74, the front wheel 72 of the frame unit 71 is located A fuel tank 76 (also The engine unit 3 has a crankcase 31 that can accommodate a crankshaft 32, the crankshaft 32 is connected with a piston 33, and the drive disk group 2 of the continuously variable transmission mechanism 1 is arranged on the crankshaft 32 of the engine unit 3 ; The crankcase 52 is pivotally provided with a rear rocker arm 8 at the rear section, the rear end of the rear rocker arm 8 is pivotally provided with a rear wheel 77, and the rear rocker arm 8 is supported by the stepless speed change mechanism 1. The driven disk group The axis of 3 is the swing center, which can swing up and down freely.

As shown in FIGS. 3 , 6 and 8 , in the implementation of the present invention, when the engine unit 3 is started, the piston 33 of the engine unit drives the crankshaft 32 to rotate, and then the crankshaft 32 drives the stepless speed change in the transmission case 2 The drive plate 11 of the system 1 rotates, so that the blade 1121 of the fixed plate 112 of the drive plate 11 can be rotated, and a suction force of negative pressure of flowing air can be formed in the transmission box 2. The negative pressure suction force formed by the blades 1121 of the disk 112 can draw the cooling air from the outside into the cooling air guiding cover 5 from the rear of the vehicle body toward the air guiding holes 52 of the cooling air guiding cover 5 (eg 6), and then guide the flow through the guide channel 531 defined by the guide rib 53, and then guide the flow between the cooling air guide cover 5 and the transmission case cover 21 of the transmission case 2 toward the vehicle. After being filtered by the filter element 6, the blade 1121 of the fixed disk 112 of the driving disk group 11 rotates to form a negative pressure in the transmission box 2, and the cooling air inlet 22 sucks the The transmission box 2 is used to cool the continuously variable transmission system 1. After cooling, it becomes a hot air flow and is discharged from the transmission box 2 through the first air outlet 23 and the second air outlet 24 respectively, so that cooling can be achieved. The external cooling air used by the continuously variable transmission system 1 is from the relatively clean external cooling air at the rear of the vehicle body when the vehicle is running, and enters the transmission box 2 in a gentle way to cool the continuously variable transmission system 1. Therefore, the external cooling air can be prevented from being forced into the transmission box 2 from the front of the vehicle body due to the running of the vehicle, so as to improve the use effect of the continuously variable transmission system 1 .

The effect of the present invention lies in that the continuously variable transmission system 1 is installed in a transmission box 2, and the continuously variable transmission system 1 includes a drive group disk 11, a passive disk group 12 and a drive group connected to the drive disk group. 11 and the driving belt 13 between the driven disk group 12; the transmission case 2 has a transmission case cover 21, and the transmission case cover 21 is provided with a cooling air inlet on the side of the drive group disk 11 of the continuously variable transmission system 1 22, the outer cover of the transmission case cover 21 is provided with a cooling air guide cover 5; the cooling air guide cover 5 is provided with an air guide hole 52 for the entry of external cooling air toward the side of the vehicle body; The cooling air is forced to enter the transmission case 2 from the front of the vehicle body due to the running of the vehicle, so that the cleanliness of the cooling air can be ensured, so as to improve the use effect of the continuously variable transmission system 1 .

According to some technical means of the present invention, the air guide hole 52 of the cooling air guide cover 5 is located outside the passive disk group 12 of the continuously variable speed change system 1; thereby, the flow rate of the cooling air can be moderated, thereby improving the The cleanliness of the cooling air entering the transmission case 2 .

In some technical means of the present invention, the air guide hole 52 of the cooling air guide cover 5 is provided with a plurality of guide pieces 521, and each piece of the guide piece 521 is angled toward the rear of the vehicle body. They are arranged in a slightly parallel manner; thereby, the cleanliness of the cooling air entering the cooling air guide cover 5 and the transmission case cover 21 can be improved.

In some technical means of the present invention, the cooling air guide cover 5 is provided with a plurality of guide ribs 53; thereby, the flow rate of the cooling air can be moderated and the flow direction of the cooling air can be ensured, and then the cooling air can be lifted into the transmission case 2. The cleanliness of cooling air.

According to some technical means of the present invention, at least one guide channel 531 can be defined by the plurality of guide ribs 53; thereby, the flow rate of the cooling air can be moderated and the flow direction of the cooling air can be ensured, and then it can be lifted into the transmission case 2 The cleanliness of cooling air.

In some technical means of the present invention, a filter element 6 is provided in the cooling air guide cover 5 ; thereby, the cleanliness of the cooling air entering the transmission case 2 is improved.

According to some technical means of the present invention, the filter element 6 has a frame 61 and a filter unit 62 arranged on the frame 61 , thereby improving the cleanliness of the cooling air entering the transmission case 2 .

According to some technical means of the present invention, the transmission case cover 21 is provided with a plurality of locking posts 211, and the cooling air guide cover 5 is provided with a plurality of locking posts 51 corresponding to the locking posts 211; The cooling air guide cover 5 is connected to the transmission case cover 21 .

According to some technical means of the present invention, the transmission case cover 2 is provided with a plurality of locking posts 211, and the cooling air guide cover 5 is provided with a plurality of locking posts 51 corresponding to the locking posts 211; the cooling air guide The cover 5 has a filter element 6, and the filter element 6 is located outside the cooling air inlet 22; thereby, the cleanliness of the cooling air entering the transmission case 2 can be ensured.

According to some technical means of the present invention, the filter element 6 has a frame 61 and a filter unit 62 disposed on the frame 61 , the frame 61 has a perforation 611 , and the filter element 6 is locked together with the cooling air guide cover 5 . It is attached to the transmission case cover 21; thereby, the joint locking effect of the filter element 6, the cooling air guide cover 5 and the transmission case cover 21 can be facilitated.

To sum up, the present invention can effectively improve the use effect of the continuously variable transmission system through the cooling mechanism of the continuously variable transmission system, and can indeed achieve the desired purpose and effect. Please review the detailed review, and benefit from the examination and approval of the invention patent.

1121: Blade

2: Gearbox

21: Transmission cover

211: Locking column

22: Cooling air inlet

5: Cooling air guide cover

52: Air guide hole

521: Guide piece

54: Avoid recesses

6: Filter

61: Frame

611: Perforation

62: Filter unit

S: locking element

Claims (9)

A cooling mechanism for a continuously variable transmission system, the continuously variable transmission system is installed in a transmission box, and the continuously variable transmission system includes a drive group disk, a passive disk group and a connection between the drive disk group and the passive disk. The transmission belt between the groups; the transmission case has a transmission case cover, the transmission case cover is provided with a cooling air inlet on the drive group disk side of the stepless speed change system, and the outer cover of the transmission case cover is provided with a cooling air guide A guide cover; the cooling air guide cover is provided with an air guide hole for the entry of external cooling air toward the side of the vehicle body; the air guide hole of the cooling air guide cover is located in the passive plate of the stepless speed change system. outside the group. The cooling mechanism of the continuously variable transmission system according to claim 1, wherein the air guide hole of the cooling air guide cover is provided with a plurality of guide pieces, and each piece of the guide piece is directed toward the vehicle body. The side and rear directions are angled and arranged in a slightly parallel manner. The cooling mechanism of the continuously variable transmission system according to any one of claims 1 to 2, wherein a plurality of guide ribs are provided in the cooling air guide cover. The cooling mechanism of the continuously variable transmission system according to claim 3, wherein the plurality of guide ribs can define at least one guide channel. The cooling mechanism of the continuously variable transmission system according to any one of claims 1 to 2, wherein a filter element is arranged in the cooling air guide cover, and the filter element is located outside the cooling air inlet. The cooling mechanism of the continuously variable transmission system according to claim 5, wherein the filter element has a frame and a filter unit arranged on the frame, the frame has perforations; the transmission case cover is provided with a plurality of locking posts, the The cooling air guide cover is provided with a plurality of locking posts corresponding to the locking posts; the frame has perforations, and the filter element and the cooling air guide cover are jointly locked to the transmission. Cover the box. A cooling mechanism for a continuously variable transmission system, the continuously variable transmission system is installed in a transmission box, and the continuously variable transmission system includes a drive group disk, a passive disk group and a connection between the drive disk group and the passive disk. The transmission belt between the groups; the transmission case has a transmission case cover, the transmission case cover is provided with a cooling air inlet on the drive group disk side of the stepless speed change system, and the outer cover of the transmission case cover is provided with a cooling air guide A guide cover; a filter element is arranged in the cooling air guide cover, and the filter element is locked on the transmission case cover together with the cooling air guide cover. The cooling mechanism of the continuously variable transmission system according to claim 7, wherein the cooling air guide cover has a filter element, and the filter element is located outside the cooling air inlet. The cooling mechanism of the continuously variable transmission system according to claim 8, wherein the transmission case cover is provided with a plurality of locking posts, the cooling air guide cover is provided with a plurality of locking posts corresponding to the locking posts, and the cooling air guide cover is provided with a plurality of locking posts. The wind guide cover is locked on the plurality of locking columns of the transmission case cover by a plurality of locking columns.

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