JPS6196251A - Cooling device in wind-up power transmission device - Google Patents

Abstract

PURPOSE:To restrain the temperature of an endless belt from being raised and to enhance the durability of the endless belt, by forming an opening in a part of the belt abutting surface of a pulley half, and by providing a fan member which leads the outside air into the opening, adjacent to the opening. CONSTITUTION:A pulley half 8 for an endless belt is formed in its belt abutting surface 10 with an opening 27 piercing through the pulley half. Further, a fan member 28 for guiding the outside air into the opening 27 is provided on the back surface of the pulley half adjacent to the opening 27. Therefore, the outside air is led to the belt abutting surface through the opening under the operation of the fan member, and therefore, to ventilate and cool the belt so that the temperature of the belt is prevented from being raised, and it is possible to enhance the durability of the belt.

Description

[Detailed description of the invention]

+Du ■ Gong M The present invention relates to a cooling structure for a wrap-around power transmission device using a V-belt mounted on a small vehicle such as a scooter, a motorcycle, or a motorcycle. ``I would like to introduce a winding power transmission device that uses a belt. ■F between the bell 1-111 surface and the inner surface of the boob! J in P' cavity:
τ7+i tends to occur, and to remove this heat, 11
East τ-1, L, the running wind from the front of the wrapped power transmission device is η
The air is circulated in the filtration device by blowing cold air by a fan that is set at 3° or -1.
Completion 13゜What the invention intends to do However, from Title 17, the above is /, =-L, the conventional intervening matter 1
In the cooling mechanism of the force transmission device, approximately 11, the cooling water is flowed throughout the device, and it is placed on one side, so the temperature is the highest at the contact between the bell 1- and the earth. Cooling material is concentrated on the surface and the flow 1r, the temperature of this part tends to be high, Go 11, synthetic $ 41 @, natural bed, crowd ii
The materials of polymer compounds such as uw and Rinarubell I- are easy to change. VB-r TfjL# The present invention thus overcomes the I:KlI point 1. . /, :: Volume 11 Due to malfunction of the force transmission device, both sides of the unsigned transmission band were brought into contact with the contact surfaces of the fixed pulley half and the movable pulley half of the dry/J-type. 11

[, In the winding power transmission device 7, in which the drive pulley and the driven J-ri are crossed with a non-resistance belt, the part of the abutting surface of at least one of the @2l-ri halves is An opening that penetrates the flower is installed at L-J and 1, and a fan PI%+4 that guides outside air to the flower is placed next to the flower. ) J b; To Sen n111 of Datsuso VI, the above 7'-li1
``Let the outside air into the inside of your body, and turn the front part of your body into half''! 1
Cool TJI with the introduced cooling air on the contact surface and both sides of the sacrificial belt! can be done. 1 and 2 below, a practical example of the present invention will be described. 1 is a swing-type power unit mounted on a squirter-type motorcycle (", the front part of the swing-type power unit 1 is connected via a link shown in the figure). The frame (illustrated 4) is pivoted to the swinging arm F, and the rear part of the swinging power Tl-1 is
supported on the frame via 11 tubes not shown;
There is C. In addition, swing type power unit 1
and transmission line 3 are integrally constructed. The rear axle 41.1 is pivotally supported at the rear of the transmission case 3.
．． + It is now rotated by the power of engine 2 [-
There is. Saranee 1-: / Shin217) / 5 / Shinj / l-! l LL Ill ij Transmission case 3
protruding to the front part of the inside i\re, / J hun-l shift 5 has a runf l 1 no 1-6 is -1 tree C, 2 ltV, j
t + c
llJ and 1-fil crankshaft V shaft 5 are integrally fitted. Furthermore, the drive iil fJ3/T chair 10 can move in the 1 axis 1i direction, but can rotate together with the crank shifters I to 5 in the circumferential Zj direction. [Chair 10 is fitted and the same drive i1 moves) ■Chair 10 and lamp play l=
For each of the six questions, items 0-11 are interposed at regular intervals in the circumferential direction. In addition, a boss 13 is fitted into the driven shaft I-12 which is rotatably supported by the transmission case 30112, and a dolly I fixing chair 14 is integrally fitted into the boss 13. There is. Furthermore, Tri-J link 1S is fitted into boss 13,
Can be driven by h11 trijn hm15 1 face 16
It is fitted into the thick body and installed in the driven hlh1s (1
A pin 118 is fitted to the boss 13 through the J1 groove 15a in the axial direction, and the chair 16 is guided in the groove 15a. The boss 13 (W) is moved in the direction of the axis 73 relative to the boss 13 (J).Furthermore, the clamp 1-inner route 18 is integrally fitted to the boss 13 with a nut 19, and the driven movable face 16 A compression coil spring 20 is interposed between the clutch 1 inner loop and the clutch 18.
- A centrifugal clutch 1-21 is pivotably mounted on the plate 18, and a clutch outer 22 formed to surround the fiI centrifugal clutch 1-21 is integrally fitted onto the driven shaft 12 with a nut 23. It is worn. Further, the driven shaft 12 is connected to a rear axle 25 via a reduction gear [1i24], and the rear wheel 4 is integrally attached to the rear axle 25. In addition, the drive is fixed) ■The chair 8.10 and the dolly I fixed face 14.16 are V-bell l-265JF j&. Further, openings 277N are formed in the drive fixing frame 8 at equal intervals in the circumferential direction of the drive fixing frame 80, and holes 277N are formed in the drive fixing frame 8 at equal intervals in the circumferential direction. Fixed) ■ Chair 80 rotations A fan 28 is attached located on the J-direction side, and is 1j radially outside the opening 21 on the contact surface side with the V-bell I~26 corresponding to the inside of the hl drive fixed face 8. The cooling 31 introduction passage 29 is oriented in the radial direction and formed in a spiral shape. Further, in the driven fixing face 14, a jI hole 30 and a fan 31 are formed, similar to the -b dryer 1 fixing face 8. Since the embodiment shown in FIGS. 1 and 2 is configured as described above, when the engine 2 is stopped or rotating at a low speed, the spring force of the compression coil spring 20 causes the driven nJ dynamic The chair 16 is pushed t1ct by the driven fixed face 14, and the driven fixed face 1
4. The diameter of the V-belt 26 wrapped around the driven Kawasen chair 1G is maximized, and the
−■ J at the center of rotation of La 11 beam 2 nontashitonoto 5
! (:) liriiiishiikodry f 67 resistance r no 1
The chair 100 cylindrical part 10aI7) 91 is in contact with one side and can be driven.
V bell l-26 wrapped around chair 10 (-J winding f, l
IJ cliff drip shaft l-lril rotation speed) Engine speed, N2: becomes maximum. Next, as the rotational speed N1 of the -1 carrot 2 increases, the centrifugal force acting on the weight day -ra 11 increases, and the drive nl
The base chair 10 is pushed onto the drive fixing face 8.
As a result, the distance between the drive fixed fixture 8 and the drive movable fixture 10 becomes narrower, and the distance between the driven fixed fixture 14 and the trian movable fixture becomes smaller during the operation of such a dynamic power transmission device. (Fixed drive) 1 chair 8, fixed chair 140 rotations, -ノ? The engine 28, fan 31 is driven in the same rotation, and the engine 28.7 is connected to the engine 28.
1 is suctioned, and the wafer I-1 is sucked through the opening 27.30.
6. Drive fixed face 8 questions and Tri-Jinmi 1-fixed frame are sent between Chair 14 and Tri-Jin-kasenfu J-chair 16. , the part of the cooling air sucked by the funnel 28 is
Both runs flow along the contact surface of the drive fixing fixture 8, the lamp plate 6, and the dry! The contact surface of the fixed-noise chair 8 and the V-bell 1-2601j are cooled in contact with each other, and the remainder of the cold fJIF@ passes through the cooling air passage V829 17 (drive fixed) [chair Cool down by 81 meters. jl/Ko driven movable) 1 Chair 14, Tori y
y nl Flows along the 18th surface of the moving chair 1G,
Driven fixed face 14, driven Jisen milling chair 1
The il contact surface of G and the contact surface of V bell 1-26 are directly cooled. In this way, the drive fixed face 8, drive fixed face 8, drive fixed face 10, drive fixed face 14, and drive fixed face 14, which tend to generate heat during transmission, are fixed. Driven Kasen 71 Ino 16 and ■
Since the cooling kite is placed on the contact surface with the belt 26 and cooled by flowing in contact with the belt 26, it is possible to efficiently cool the V-bell I-26 by minimizing the loss of the cold IJ1. ■Belt 26
Can endure 11 times and stand \t1. Moreover, since the V-belt 26 can be effectively cooled by 1 J, it is possible to use an inexpensive V-belt l-. Aperture 27 and aperture 3 in the embodiment shown in FIGS. 1 and 2
Instead of the holes 28 and 31, an opening 32 and a hole 33 may be formed in the third F4 as shown in the figure. In addition, in the embodiment shown in FIG. [chair 10 and driven movable] J-chair 16 and opening 27, fufun 28 and opening 32, - nomen 3
3 - (IiJ2 or C, 1111 on both sides)
Set up holes 1-7. 1 is 1) good. Optical IQ1 - As described above, in the present invention, the contact surface between the contact direction of the pulley 19 and both sides of the endless transmission band can be effectively cooled by the introduced cooling air. [Obi Warm Shade] It can suppress and improve the durability of the stomach, and it is also durable! ! ! (The cost can be reduced by 1 without using an endless transmission band. Also, since the cooling air can be sent to the heating part with 41 efficiency, the windage loss for cooling is small and the visibility is small. The change becomes b1 ability.

[Brief explanation of drawings]

The 1st vA is a cold JJ of the winding horn transmission device I according to the present invention.
21st LII cross-sectional plan showing the real #IW4 of the I structure.
``71 (, L is a perspective view of the main part, Figure 3 is a side view N of the main part of electric power and other embodiments. 1-Swing type power 1 1~, 2... Engine,
3... Transmission case, 4... Rear wheel, 5... Taranlishi t-ato, 6... Lamp plate, 7... Drive-No. 1 issu boss, 8... Drive fixing face, 9... ... Nara l. 10... - Drive movable chair, 11... Urchin I 1-11- La. 12-...Driven Shito 71-. 13...Boss, 1
4... Tori-in fixed face, 15-... Driven cam, 1 mouth-... Dreamen movable face, 17... Pin, 18... Clara 1-in-1 plate, 19.-J
-Ato, 20--Pressure Ilii1 spring, 21
...Centrifugal clutch]----, 22...Cluff? Outer, 23-...to Nala 1, 24...-deceleration station stomach, 21)...rear 11 axis, 2 low...V bell l~, 2
1... Opening, 28... Fan, 29... Cooling air intake passage, 30... Opening, 31...-Fan, 32...
- Opening hole, 33...Fan. Agent: Patent Attorney-l-Momogai Ehara, 2 people

Claims (1)

[Claims] Both sides of the endless transmission band are brought into contact with the contact surfaces of the fixed pulley half and the movable pulley half of the drive pulley, and the contact surfaces of the fixed pulley half and the movable pulley half of the driven pulley, and the drive In a wrapped power transmission device in which an endless power transmission band is spanned between a pulley and a driven pulley, an opening passing through the pulley half is provided in a part of the contact surface of at least one of the pulley halves, and A cooling structure for a wrapped power transmission device, characterized in that a fan member for guiding outside air into the opening is provided adjacent to the opening.