TWI242521B - Gearbox structure for vehicle - Google Patents

Abstract

This invention, regarding a gearbox structure for vehicle, is presented. A main shaft is equipped with a slide piece, where two sides of the slide piece equip gear wheels respectively for going forwards and for providing forces. The movement-jointed shaft is equipped with a reverse slide piece, where the movement-jointed shaft at the side of the reverse slide piece is equipped with two umbrella gear wheels respectively for going backwards and for going forwards, and the terminal shaft for shaft transmission is installed between two umbrella gear wheels. By the terminal shaft and gear wheels respectively for going forwards and for providing forces being all installed between two umbrella gear wheels respectively for going backwards and for going forwards, the width and the aspect of the gearbox are varied to be small. Also by the connection of the transmission umbrella gear wheels of the terminal shaft and two umbrella gear wheels respectively for going backwards and for going forwards, the small size characteristic of the gearbox can be fulfilled to improve the drawback of traditional big size of gearbox. Accordingly, the chain design used in the traditional gearbox and the noise generated by the large section length of the traditional gearbox are both disappeared.

Description

1242521

V. Description of the invention G) [Technical field to which the invention belongs] The present invention relates to a gearbox structure for a vehicle, and more particularly to a gearbox structure capable of achieving a plowing effect of the gearbox. [Prior technology] Press, you are familiar with the structure of the ATV gearbox. Please refer to Figure 1. This gearbox 10 is mainly used to transmit the power of a bow | engine through a belt transmission mechanism 1〇1- / Passive shaft 1 1, and the passive shaft 11 is transmitted to one of them, and the vehicle 12 is set and combined with each other, so that the passive shaft 丨 丨 and the transmission shaft 12 are in a relative movement, At the same time, the passive shaft n uses one of the transmission gears 13 above and the reduction gear 21 set on a transmission shaft 20 beside it to drive each other. In addition, on the transmission shaft 20, a reverse transmission gear 22, a forward transmission gear 23, and an afterburner transmission gear 24 are respectively provided in this order. Between the speed change gear 22 for reverse, the change gear 2 3 for front and the speed change gear 2 4 for after force, an external king slot 2 5 ′ is provided so as to be opposite to the speed change shaft 20. Two transmission gears 22 are used between the reverse transmission gear 22, the input gear 23 and the boosting gear 24, and the clutch 2 4 1 and the reduction gear 2 1 Both have inner and outer bolt grooves 242,25. And between the clutches 2 4 1 and the gears for reverse gear 2 2, the gears 23 for special gears and the gears for power 2 4, there is a corresponding block 243 ′ 244,俾 These clutches 241 can be shifted on the truck from the 20 to the slot 25 to select a change for the reverse

1242521 V. Description of the invention (2) The speed gear 22, the forward gear 23, and the boost gear 24 are combined to form four different gears: a neutral reverse gear, a forward gear, and a booster gear. Position change, and then on the transmission shaft 12 and the transmission gear 23 and the after-use gearing gear 24 before the transmission shaft 20, there are a forward gear 14 and an afterburner The transmission gear used is 15 °. Furthermore, when the reverse transmission gear 22 is in the reverse gear state, it can interact with a steering gear 271 on a steering shaft 27 located beside it. Coupled rotation, and then one of the steering shaft 27 and the other steering gear 2 7 2 and the driving gear 15 for urging on the driving shaft 12 are coupled with each other to move. The above-mentioned clutch 2 4 1 is provided with an embedded groove 2 4 5 in the middle, and the embedded groove 2 4 5 is provided with a shift fork 2 4 6, and the shift fork 2 4 6 is sleeved in A shaft 2 4 7 is on one end, and one end of the shift fork 2 4 6 is provided with a positioning post that can slide along the track of the upper and lower grooves 3 1 and 3 2 of a shift cam shaft 30 36, where the groove 31 is composed of three consecutive stages of high, middle, and low stages, and the gears represented by the groove 3 1, 3 2 are: Gear: N, forward gear: Η and afterburner gear: L. In addition, in order to ensure that the gears are shifted in, a positioning spring H and a positioning steel ball (not shown) are provided on the transmission box 10, and the shift camshaft 30 is provided in a position opposite to the gear position. There is a locating slot 3 3, when a gear lever moves a bevel gear 34, it will. S combination drives the variable speed camshaft 30 to rotate to a correct gear position. In addition, one end of the transmission shaft 12 is coupled with a chain 35 for transmission.

Page 6 1242521 V. Description of the invention (3) With the above-mentioned components, when the ATV is in a deep obstacle and cannot be smoothly released, it only needs to be put into the booster gear: L to make these clutches 2 4 1 cards Block 243 is engaged with the block 244 of the variable-speed gear 24 for afterburning, so that the small-tooth-numbered variable-speed gear 24 can drive the large-toothed after-gear transmission gear 15 for a low-power transmission to achieve low The speeding up and large torsional force can help to achieve the purpose of helping the ATV to get out of trouble. However, the structure of the transmission 10 is known, because it must be constituted by the four shafts such as the passive shaft 11, the transmission shaft 1 2, the transmission shaft 20, and the steering shaft 2 7, and is arranged on the transmission shaft 20. The transmission gear 22, the forward transmission gear 2 3, the booster transmission gear 2 4 and the two clutches 2 4 1 are connected in parallel, and the chain 3 5 is transmitted to a rear wheel, so the transmission 10 The longitudinal length and width are relatively too large, which causes the disadvantage of the gearbox 10 to become large. When the chain 35 is used for a period of time, the pitch of the chain 35 will gradually increase, causing noise in the future. Produced; therefore, if it is possible to design a gearbox 10 structure that can be modified to improve the aforementioned disadvantages, it is a problem that must be solved by the industry. _ [Summary of the Invention] In view of the in-depth introduction in the foregoing prior art, it is not difficult to know that the conventional gearbox structure has the disadvantage of large-scale, and that the chain will cause noise in the future after being used for a period of time. Therefore, Based on the actual needs of the market and users, and in order to solve the above problems, the inventor, based on many years of experience in the industry, has worked hard for a long time to research and experiment, and finally developed a "transmission for vehicles" "Structure" in order to contribute to society through the ingenuity of the present invention.

Page 7 1242521 V. Description of the invention (4) The purpose of the present invention is to set a slider on a main shaft, and the gears for advancing and the force for forcing are arranged on both sides of the slider, and are arranged on a linkage shaft. There is a reverse slider, and a reversed bevel gear and a forward bevel gear are provided on a linkage shaft on one side of the reverse slider, and the reverse bevel gear and the forward bevel gear A final shaft with a shaft drive is arranged between the bevel gears for the reverse gear and the bevel gears for the forward gear, and the forcing gear and the forward gear are also located in the bevel gear for the reverse gear. And 'the bevel gear for forward, the width direction of the gearbox can be made smaller, and the bevel gear for reverse on the linked shaft and the bevel gear for forward are combined with the bevel gear of the final shaft, It can make the gearbox smaller to achieve the purpose of effectively reducing the disadvantages of large gearboxes. At the same time, the gearbox of the present invention has less chain design on the gearbox, so it can effectively improve the gearbox. Transmission chain in the long run Disadvantages of vocalization when the rear pitch becomes larger. _ [Embodiment] In order for your review committee to have a better understanding and understanding of the technical means and operation process of the present invention, the following examples and drawings are described in detail below: # This invention is a "transmission for vehicles Structure ", please refer to Figure 2. The gearbox 40 is mainly used to transmit the power of an engine to a driven shaft 4 1 via a belt transmission (not shown here), and the driven shaft 4 1 A transmission gear 411 integrally formed thereon and a first gear 421 set on a linkage shaft 42 beside the transmission gear 411 are coupled to each other,

Page 8 1242521 V. Description of the invention (5) The first gear 4 2 is arranged on the moving shaft 4 2 in sequence, a corresponding reverse slider 4 2 2, a bevel gear 4 2 for backward movement 4. A second gear 4 2 5, a third gear 426, a bevel gear 427 for forward movement, and a fourth gear 4 2 8; the reverse slider 4 2 2 and the bevel gear 4 for backward movement Each of the upper 2 and 4 is provided with an embedded groove 4 2 3, 4 2 3 ′, and the reverse slider 4 2 2 is engaged with the linkage shaft 42 through a toothed portion (not shown) on the upper slider 4 2 2. When the interlocking shaft 42 rotates, the bevel gear 424 for backward movement, the bevel gear 4 2 7 for forward movement, and the fourth gear 4 2 8 are in an idle state. In addition, a main shaft 4 3 is provided on the other side of the linkage shaft 4 2, and the main shaft 4 is provided with an afterburning gear 4 3 1, a corresponding slider reading 432, and a forward use respectively. The gear 433 and another transmission gear 434, wherein the gear 4 3 1 for force application, the slider 4 3 2 and the gear 4 3 3 for forward use are respectively provided with the embedded groove 4 2 3, 4 2 3, and the slider 4 3 2 is coupled to the main shaft 4 3 through a toothed portion (not shown in the figure) above, when the slider 432 is not embedded in the forward gear 433 When the groove 423 is provided, the second gear 425 on the interlocking shaft 42 is rotated in conjunction with the urging gear 431 on the main shaft 43, and the third gear 426 on the interlocking shaft 42 is connected to the main shaft 43. The forward gear 433 is coupled to rotate, and the boosting gear 431 and the forward gear 4 3 3 are in an idle state on the main shaft 43. · Furthermore, the above-mentioned recessed grooves 4 2 3 on the reverse slider 4 2 2 and the slider 4 3 2 are respectively inserted with a first shift fork 441 and a second shift fork 443. The fork 441 and the second shift fork 443 are respectively set on a shift fork shaft 44 and one end of the first shift fork 441 and the second shift fork 443 are each provided with a shift hub. 45 two positioning grooves 451 and 452 sliding on the circumference

1242521 V. Description of the invention (6) 4 4 2, 4 4 4, so as to facilitate the setting of one of the shift levers 4 6 to ensure that the gear is shifted to °. In addition, the bevel gear 427 used before the linkage shaft 42 It is coupled with one of the transmission bevel gears 5 1 on one of the final shafts 50, which is set next to the shaft transmission. With the above-mentioned components, it can be clearly known that when the vehicle passes the gearshift lever 4 [one of the driving gear 461 drives one of the gearshift hub 45 and one of the gearwheels 453, so that the gearshift hub 45 is shifted into the forward gear, please refer to As shown in FIG. 2, the second fork 4 4 3 will move the slider 432 to fit into the recess 423 of the forward gear 433, and the power will link the linkage shaft through the transmission gear 411 of the passive shaft 41. When the 42 rotates, the third gear 426 on the interlocking shaft 42 also rotates, and transmits power to the forward gear 433, so that the forward gear 433 idles on the main shaft 43. In this way, the original gear advances before the idle state. The gear 433 used will cause the main shaft -43 to rotate relative to the combination of the slider 4 3 2 and the main shaft 43, and further drive the other transmission gear 434, the fourth gear 428, and the forward gear in order. The bevel gear 427, the transmission bevel gear 51, and the shaft drive. The final shaft 50 is coupled with each other to drive to a rear wheel (not shown in the figure), thereby achieving the purpose of advancing. In addition, when the vehicle shifts the shift hub 4 5 into the reverse gear through the shift lever 46, please refer to FIG. 3, the first fork 44 丨 will move the reverse slider 42 2 Let it disperse into the recessed groove 423 of the bevel gear 424 for backward movement, and when the power is rotated by the transmission gear 4 1 1 of the passive shaft 4 1 to rotate the interlocking shaft 4 2, the backward bevel gear 4 2 4 Because it is sleeved on the linkage shaft 4 2 and is not linked by the linkage sleeve 4 2, the reverse slider 4 2 2 is connected to the linkage shaft 4 2

Page 10 1242521 V. Description of the invention (7) Combined with relative rotation, it can transmit power to the bevel gear 4 2 4 for backwards, further driving the transmission bevel gear 51 and the final shaft drive The shafts 50 are humming with each other to drive to the rear wheels, thereby achieving the purpose of reversing. Furthermore, when the vehicle causes the shift wall hub 4 5 to enter the forward force through the shift lever 46? In the power transmission, please refer to FIG. 4. The second fork 443 will move the slider 432 to be inserted into the embedding groove 423 of the gear 431 for boosting, and the power is transmitted through the passive shaft 4 1 When the transmission gear 4 1 1 rotates in conjunction with the linkage shaft 4 2, the second gear 425 on the linkage shaft 42 also rotates, and transmits power to the gear 4 3 1 for force application, so that the force is used for Gear 4 3 1 is idling on / spindle 4 3. ❿ In this way, the gear 4 3 1 that was originally in the idling state will be driven by the combination of the slider 4 3 2 and the spindle 4 3. The main shaft 4 3 rotates to further drive the other transmission gear 434, the fourth gear 428, the bevel gear 4 2 for forward, the bevel gear 5 1 and the final shaft 50 of the shaft. Transmission, which is used to drive to the rear wheels, and then achieve the purpose of boosting before low speed and high torque. Therefore, in the present invention, a slider 4 3 2 is provided on the main shaft 43. The slider 4 3 2 is provided with a forward gear 433 and a boosting gear 431 on both sides, and the linkage shaft 42 is provided with a reverse slide. Block 4 2 2, the reverse slider 4 2 2-on the side linkage shaft 4 2 _ is provided with a bevel gear 424 for reverse and a bevel gear 4 27 for forward, and the bevel gear for the reverse A final shaft 50 of the shaft transmission is provided between 4 2 4 and the bevel gear 4 2 7 for forward movement, and the final shaft 50 is located between the bevel gear 424 for backward movement and the bevel gear 427 for forward movement. As well as gears for afterburning. 431 and forward gears 433 are also located on the reverse bevel gear 424 and front

Page 11 1242521 V. Description of the invention (8) Between the bevel gears 427 used, the width direction of the gearbox 40 can be made smaller, and the bevel gears 4 2 4 for reversing on the linkage shaft 4 2 and The bevel gear 427 for advancing is coupled with the transmission bevel gear 51 of the final shaft 50, so that the gearbox 40 can be miniaturized, so as to effectively improve the disadvantages of the large size of the conventional gearbox 10. At the same time, the invention The gearbox 4 0 is less of the conventional gearbox _ 1 0 chain 35 design, so it can effectively improve the shortcomings of the voice of the conventional gearbox 10 chain 3 5 after a long period of use. . According to the above, it is only one of the best specific embodiments of the present invention, but the structural features of the present invention are not limited to this. Anyone skilled in the art can easily think of the changes or Modifications shall all be covered by the scope of patent application in the following cases.

Page 1242521

Brief description of the drawings. Brief description of the drawings: FIG. 1 is a partial cross-sectional schematic diagram of a known neutral state of a gearbox. FIG. 2 is a shifting phase of the present invention in which the gearshift / r / r phase is shifted into the forward gear state. The gearbox of the present invention with the gearshift / r / r phase shifted into the reverse gear state-Figure 4 is the gearbox of the invention with the gearshift AAr phase shifted into the forward afterburner state: Intention 0 The representative symbols of the main parts: «Gearbox ... 40 Passive car by " 41 Transmission gear ... 41 1 Linkage shaft ... 42 First gear ... 421 Reverse slider ... 422 Slotting ......... 423 Λ 4 2 3 'Bevel gear for reverse ... 424 second gear ... 425 second gear ... 426 bevel gear for forward ... 427 fourth gear ... 428 spindle ... 43 gear for boosting ... 431 slider ... 432 Forward gear ... 433 another Transmission gear ... 4 3 4 Forklift truck by lever ... 4 See the first fork ... 441 Second fork ... 443 Positioning post ... 442 Λ 444 Gearshift hub ... 45 Groove ... 451 Λ 452 gear selector ... 46 driven gear ... 453 driving gear ... 46L final shaft ... 50 driving bevel gear ... 51 page 13

Claims (1)

1242521 1. A gearbox structure for a vehicle. 'The gearbox structure transmits power through a shift hub, first shift fork, second shift fork, slider, and reverse slider.' The linked shaft and the main shaft are transmitted to the final shaft, which are characterized by: '' The main shaft is provided with a slider, and the two sides of the slider are provided with a forward gear and an afterburning gear, and a reverse slide is provided on the linked shaft. Block, a bevel gear for reversing and a bevel gear for advancing are provided on a linked shaft on one side of the reverse slider, and a shaft is provided between the bevel gear for reversing and the bevel gear for advancing The final vehicle for transmission is driven by the combination of the final shaft system with the transmission bevel gear and the bevel gear for reverse and the bevel gear for two inputs. The bevel gear for backward and the umbrella for forward A second gear and a third gear are provided on the linkage shaft between the gears. 2. The transmission structure for a vehicle as described in item 1 of the scope of the patent application, wherein the reverse slider is coupled to the linkage shaft through a toothed portion on the reverse slider, and can rotate as the linkage shaft rotates. 3. The transmission structure for a vehicle as described in item 1 of the scope of the patent application, wherein the slider is coupled to the main shaft through a toothed portion on the slider, and can be rotated as the main shaft rotates. 4. The gearbox structure for a vehicle as described in item 1 of the scope of the patent application, wherein the gear for boosting on the main shaft and the gear for advancing are located on the bevel gear for reversing and the bevel gear for advancing. between. Page 14