KR0184511B1 - A manual transmission of a vehicle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reverse transmission of a manual transmission for a vehicle, wherein a first gear 3 and a second gear 4 on the input shaft 2 have a first gear 3 'and a second gear on the output shaft 5. 1 and 2 single-actuated gearing device (7 ') having a reverse gear (6) on the outer circumference between the 1st gear (3') and the 2nd gear (4 '). On the reverse idler gear shaft 12, the first reverse idler gear 13 and the second reverse idler gear 14 are respectively disposed on the second stage gear 3 and the output shaft 5 of the input shaft 2. It is mounted on the reverse gear 6 so as to be engaged in a constant bite, and a reverse oscillation gearing device 15 is installed between the first reverse idler gear 13 and the second reverse idler gear 14. The banner matching device 15 is connected to the left and right shifts via the reverse shift fork 18 and the five-speed shift fork 17 of the five-stage reversing shift rod 16. The rod 16 has two gears (3) on the input shaft (2). And the rotational driving force of the first reverse idler gear 13 idling on the reverse idler shaft 12 to be transmitted to the second reverse idler gear 14, thereby reversing the gear 6 ′ of the output shaft 5. Rotation will result in a smooth and smooth reverse shift.

Description

Reverse Vibration Matching Device of Manual Transmission for Vehicles

1 is a partial cross-sectional view of a manual transmission for a vehicle according to the present invention.

2a and b are cross-sectional views taken along lines I-I and II-II of FIG.

3 is a cross-sectional view of the five-stage reverse shift rod connected to the reverse oscillation engagement device of FIG.

4 is a cross-sectional view showing a power transmission process in the first gear shift and the second gear shift.

5 is a conventional structure, corresponding to FIG.

6 is a cross-sectional view taken along the line III-III of FIG.

* Explanation of symbols for main parts of drawings

1: Manual Transmission 2: Input Shaft

3: 1st gear 4: 2nd gear

5: output shaft 6: reverse gear

7: 1st and 2nd stage gearing device 8: Transmission casing

9: bolt 10: reverse idler gear shaft support member

11: clutch housing 12: reversing idle gear shaft

13: 1st reverse children gear 14: 2nd reverse children gear

15: Reverse Synchronous Matching Device 16: 5-stage Reverse Swing Rod

17: 5-speed shift fork 18: Reverse shift fork

19: 5-step synchronizing device 20: sleeve

21: groove 22: synchronizer ring

23: cone clutch 24: hub

The present invention relates to a reverse shift mechanism of a manual transmission for a vehicle. In particular, a reverse shift coupling device is mounted between a reverse idler gear shaft on a reverse idler gear shaft to enable reverse shifting by a constant-shift gear shift. Accordingly, the present invention relates to a reverse oscillator coupling device for a manual transmission for a vehicle that can prevent damage to a gear tooth caused by a collision between gears during a reverse shift.

In general, the gear associated with the reverse shift of the vehicle manual transmission is a first gear 103, a reverse gear 106, a second gear on the input shaft 102 from the engine (not shown) side as shown in FIG. The first gear 103 'and the second gear 104' are arranged on the output shaft 105 so as to correspond to the first gear 103 on the input shaft 102. It is always fitted to the second gear 104, and between the first gear 103 'and the second gear 104' is provided with a reverse gear 106 'on the outer circumferential surface of the sleeve 106'a. While the two-stage synchronizing device 107 is installed, the reverse idler gear 113 is a reverse idler gear shaft support member 110 which is screwed and extended by a bolt 109 at a predetermined position of the transmission casing 108. It is configured to be slidably movable on the reverse idler gear shaft 112 provided between the front end portion and the predetermined position of the clutch housing 111.

Therefore, during the reverse shift, the reverse idle gear 113 on the reverse idler gear shaft 112 is moved (dotted line) in the direction of the arrow (←) by the reverse shift mechanism, so that the input shaft 102 is shown in FIG. As the gear is engaged with the reversing gear 106 of the upper gear and the gear shifted to the reverse gear 106 'formed on the outer circumferential surface of the 1/2 single gear gear 107 on the output shaft 105, the reverse shift occurs.

However, in the conventional reverse shift as described above, the reverse idler gear 113 rotates with the reverse gear 106 on the input shaft 102 which is continuously rotated by the rotational moment of inertia even when the power is cut off by the clutch (not shown). When the gear is engaged with the reverse gear 106 'on the output shaft 105 in the stopped or slow state, the collision between the gear teeth occurs due to the difference in the mutual rotation speed, resulting in wear and breakage. In order to be damaged, and also to be smooth gears for the selective sliding type of gears because the strength of the gear teeth is weak, there is a big problem of noise generation during rotation.

Accordingly, the present invention has been invented to solve the above problems, by mounting the first and second reverse idler gears on the reverse idler shaft to be engaged with the second gear and the reverse gear on the input shaft and the output shaft at all times. The rotational driving force of the input shaft is not transmitted to the output shaft by the engagement of the selective sliding type during reverse shifting, but the rotational driving force is transmitted to the output shaft by the reverse oscillation coupling device to prevent wear and damage of the gear teeth. In addition, an object of the present invention is to provide a rear oscillator coupling device of a manual transmission for a vehicle that can improve a shifting feeling.

The present invention for achieving the above object, the first gear and the second gear on the input shaft from the engine side is fixedly mounted to the shaft in a state spaced apart a predetermined distance, the first gear and the second gear on the output shaft needle While idling through the bearing, the 1st gear and the 2nd gear are always meshed with the first gear, and between the 1st gear and the 2nd gear are installed a 1st and 2nd gear gear with a reverse gear on the outer circumference. The first reverse idler gear and the second reverse idler gear mediate the needle bearing on the reverse idler gear shaft provided between the leading end of the reverse idler gear shaft supporting member and the clutch housing extending from the predetermined position of the transmission casing. While idling with respect to the shaft of the furnace, they are always meshed with the second gear of the input shaft and the reverse gear of the output shaft. Between the idle gears, a reverse synchronization gear is installed, which is connected to the left and right shift fork by the reverse shift fork and the five-speed shift fork on both sides of the 5-stage and reverse shift rod. The sleeve of the reverse synchronization gear is connected to the second reverse idler gear so that the five-stage reverse gear rod is engaged with the second gear of the input shaft to transmit the rotational driving force of the first reverse idler gear idling on the reverse idler shaft. By moving splined to the cone clutch, the reverse gear of the output shaft engaged with the second reverse idler gear is rotated so that the reverse shift is possible.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a partial cross-sectional view in which the reverse transmission coupling device is mounted on a manual transmission of a vehicle according to the present invention, wherein a gear associated with the reverse shift of the manual transmission 1 of the present invention is input shaft 2 from the engine (not shown) side. The first gear 3 and the second gear 4 are sequentially arranged and fixed on the shaft with a predetermined distance thereon, and the first gear is idling on the output shaft 5 via the needle bearing 5a. 3 'and the second gear 4' are mounted to the first gear 3 and the second gear 4 of the input shaft 2 to be meshed with the first gear 3 'and the second gear. Between the gears 4 ', a one- and two-stage synchronizer gearing device 7 having a reverse gear 6 is provided on the outer circumferential surface of the sleeve 6a, while the bolt 9 is attached to the bolt 9 at a predetermined position of the transmission casing 8; The first reverse children are mounted on the reverse idler gear shaft 12 provided between the leading end of the reverse idler gear shaft supporting member 10 and the predetermined position of the clutch housing 11. As the gears 13 and the second reverse idler gear 14 are idling about the shaft via the needle bearing 12a, as shown in Figs. 2a and b, the second gear 4 of the input shaft 2 is respectively shown. ) Is mounted on the reverse gear (6) of the output shaft (5) at a constant bite, and between the first reverse idler gear (13) and the second reverse idler gear (14). As shown in FIG. 3, this reverse synchronizing device 15 is provided with a five-stage shift fork 17 and a reverse shift fork connected to the five-stage reverse shift rod 16. Are inserted into the central groove portion 21 of the sleeve 20 of the 5-stage synchronization gear 19 and the reverse oscillation gear 15, respectively, so that the sleeve 20 moves according to the operation of the transmission mechanism. It has a structure that can move left and right in conjunction with the reverse shift rod 16.

Here, the gears can be installed in a helical gear with good power transmission efficiency and less noise since they are mounted on the shaft in a constant bite.

Hereinafter will be described the operation of the present invention.

In the reverse shift, as shown in FIG. 1, if the rotation driving force to the input shaft 2 is disconnected by the clutch (not shown), the rotation of the output shaft 5 also stops, and thus the reverse on the output shaft 5 The rotation of the second reverse idler gear 14 on the reverse idler gear shaft 12 engaged with the gear 6 is also stopped, wherein the first reverse idler gear 13 is applied to the remaining moment of inertia on the input shaft 2. By idling with the second gear (4) being rotated by the idle idle gear shaft 12 is idling.

Then, as shown in FIG. 3 by the operation of the reverse shift mechanism, when the five-stage reverse gear rod 16 is moved in the left direction (arrow display direction), the sleeve 20 of the reverse oscillation engagement device 15 is moved. The reverse shift fork 17 inserted into the upper groove 21 on the upper side is moved accordingly, and is splined to the cone clutch 23 located on the left side of the synchronizer ring 22 in which the sleeve 20 is pushed. As the first reverse idler gear 13, which is electrically beam-welded to interlock with the cone clutch 23, is engaged with the second gear 4 of the input shaft 2 and rotated, this rotation driving force is transmitted to the sleeve 20. It is transmitted to the hub 24 coupled to the spline on the inner circumferential surface of the, and the rotational driving force transmitted to the hub 24 is transmitted to the second reverse idler gear 14 coupled to the hub 24 and the spline, this second The rotational driving force transmitted to the reverse idler gear 14 is always engaged with the second reverse idler gear 14. It is transmitted to the reverse gear 6 on the force shaft 5, so that the reverse shift is possible.

On the other hand, in the first or second gear shifting, as shown in Figs. 4A and 4B, as the first and second stage synchronizing devices 7 on the output shaft 5 are displaced left and right by operation of the transmission mechanism, the reverse gear is shifted. In the state in which (6) is partially engaged with the second reverse idler gear 14, the rotational driving force is transmitted to the first gear 3 'and the second gear 4', respectively, so that the gears are always bite. In this state, it is possible to make a shift in the entire stage, thereby making it possible to manufacture a manual transmission 1 equipped with a reverse gear 6 of a helical type having low noise and good power transmission efficiency.

As described above, according to the reverse oscillation gearing device of the manual transmission for a vehicle of the present invention, the first reverse idler gear 13 on the reverse idler gear shaft 12 is always engaged with the second stage gear 4 of the input shaft 2. The second reverse idler gear 14 is always meshed with the reverse gear 6 of the output shaft 5, and the reverse oscillation gearing device 15 is provided therebetween, so In spite of the difference in the number of revolutions, a smooth and stable reverse shift is possible, thereby improving the speed of the shift.

Claims (1)

From the engine side, the first gear 3 and the second gear 4 on the input shaft 2 are fixedly mounted on the shaft with a predetermined distance, and the first gear 3 'on the output shaft 5 ) And the second gear (4 ') is idlely fitted to the first gear (3) and the second gear (4) by idling through the needle bearing (5a), the first gear ( Between the 3 ') and the 2nd gear (4'), a 1st and 2nd stage gearing device (7) equipped with a reverse gear (6) is installed on the outer circumferential surface, and is screwed at a predetermined position of the transmission casing (8) to extend. The first reverse idler gear 13 and the second reverse idler gear 14 are disposed on the reverse idler gear shaft 12 provided between the leading end of the reverse idler gear shaft support member 10 and the predetermined position of the clutch housing 11. The first bearing 12a is idly rotated about the shaft, and is mounted on the second gear 3 of the input shaft 2 and the reversing gear 6 of the output shaft 5 so as to be meshed at all times. Junior Between the lifting gear 13 and the second reverse idler gear 14, a reverse oscillation engagement device 15 is provided, which is provided on both sides of the five-stage reversing shift rod 16. The reverse shift fork 18 and the five-speed shift fork 17 are connected to each other so as to move left and right, so when the reverse shift, the five-stage and reverse shift rod 16 is the second gear 3 of the input shaft 2. The sleeve 20 of the reverse oscillation pressurizing device 15 is formed so that the rotational driving force of the first reverse idler gear 13, which is engaged with and rotates on the reverse idler shaft 12, to the second reverse idler gear 14. The reverse gear 6 of the output shaft 5 engaged with the second reverse idler gear 14 is rotated by moving the sprocket type to the cone clutch 23 of the first reverse gear 13 so that the reverse shift is performed. Rear oscillator matching device for vehicle manual transmission.