KR19980085681A - Reverse Vibrator of Transmission - Google Patents

Abstract

The present invention relates to a reverse oscillator of a transmission, and a transmission case (2) is installed, and a transmission cover (3) is attached to a rear end portion of the transmission case (2) in a state capable of oil sealing, and the transmission case (2). ), The input shaft 6 connected to the engine output shaft 7 via the clutch 4 and the output shaft 7 arranged in parallel with the input shaft 6 are freely rotated via the pair of bearings 8 and 9. It is supported by each, and the input shaft 6 and the output shaft 7 are provided with five forward gear units 10, 11, 12, 13, 14 for the first stage and the fifth stage. Between the gears 20 and 21 of the gear units 10 and 11 of the gear stages, and between the gears 17 and 18 of the gear apparatus 12 and 13 gears of the three gears and the gear gears 14 of the five gears. At the rear of the gear 19 is a synchronizer 25, 26, 27 which selectively couples one of the gears 20, 21, 17, 18 and 19 to the input shaft 6 or the output shaft 7. ), Respectively, is installed in the shift lever According to that operation in accordance with; On the rear side of the clutch hub 30, a brake member 43 is formed in a cylindrical shape and an inner diameter side thereof is a protrusion of a spline, and the brake member 43 is a spline formed on a splined protrusion 43a and a cover 3. Coupling with the projection 3a, the input shaft 6 is installed in the axial direction by the link lip (3b) provided on the spline projection (3a) is impossible to move, the outer circumferential surface to the rear portion to enlarge the diameter A tapered compression contact surface 45 having a circumferential surface shape is formed, and a synchronous ring 46 which is friction-compressed to the tapered compression contact surface 45 and a spline-fitting fitting to the sleeve 31 is fitted on the front portion. This makes the configuration simple and prevents damage to the gears 38, 39, and 41 during the reverse movement, prevents noise and vibration, and uses a member in common with the synchronous device 27 for five steps. When configuring the synchronizer 42 On, it can be more inexpensively produce the reverse synchronizer 42.

In addition, since all members of the reverse oscillator can be easily assembled to the cover, cost reduction and assemblability are greatly improved.

And it is a very useful invention, such as the effect which can reduce the overall length of a mission, etc. is acquired.

Description

Reverse Vibrator of Transmission

The present invention relates to a reverse oscillator of a transmission, and more particularly, to improve assembly performance, to prevent generation of vibration noise, and to improve parts fabrication, to reduce cost and to reduce the length of the overall length. Invented.

In general, a manual transmission for a vehicle is installed between a clutch and a propulsion shaft to increase or decrease the rotational force of an engine according to a change in driving conditions of a vehicle. A reverse transmission is used as a reverse device for reversing a vehicle. Equipped.

The reverse transmission device is provided with a reverse synchro mechanism.

If the reverse sync mechanism is not installed, the rotational moment of inertia exists on the input shaft even when the power transmitted from the engine is cut off by the clutch, and the reverse gear and the output shaft having the reverse idler gear formed on the input shaft by the reverse transmission mechanism. When gears are engaged with the reverse gear of the upper gear, the teeth cannot be smoothed due to the difference in rotation speed.

Therefore, a collision occurs and wear and damage of the gear teeth due to metal friction noise and shock, which is inevitable replacement and repair, causing economic damage, the reverse synchro mechanism is installed as a means to prevent this will be.

On the other hand, in the manual transmission of an automobile, a plurality of gear units for moving forward are configured to be smoothly switched via a synchronous device.

However, the reverse gear device as shown in Fig. 4 is configured to be selectively switched by the sliding motion of the flow gear without passing through the synchronous device because of being switched in the normal stop state.

Therefore, when the clutch is released from the neutral state or the ultra low speed forward state, the gear is rotated in direct connection with the inertia rotating input shaft 6 and the stationary or ultra low speed rotating output shaft 7 when the reverse gear device is connected. Resonance or gear breakage occurred, making it impossible to generate noise and drive when reversing.

In addition, conventionally, a rear end portion is provided to concentrically install a brake member having a tapered compression contact surface of a conical surface, which is a portion of which diameter is enlarged toward the rear of the input shaft 6 in the rearward direction and fixed to the rear end portion of the brake member. It was configured to provide an inertial rotation of the input shaft 6 by using an additional member to fix it to the shift fork 36 and the output shaft 7.

However, in such a reverse oscillator device, additional space is required to extend the overall length of the mission and make it difficult to install in a narrow transmission.

In addition, there is a problem of adding cost by using the additional member.

SUMMARY OF THE INVENTION An object of the present invention is to provide an after-synchronization apparatus capable of improving assembly while preventing ringing of a gear during backward movement, and preventing generation of vibration noise.

Another object of the present invention is to provide a post-vibrator device to improve the assemblability, improve the manufacturability of the parts to reduce the production cost.

It is still another object of the present invention to provide a reverse synchronizer of a transmission that can shorten the mission length.

1 is a device diagram showing a manual transmission to which the present invention is applied

Figure 2 is a cross-sectional view showing a reverse oscillator of the present invention

Figure 3 is a front view showing the link rib shape of the present invention

Figure 4 is a cross-sectional view showing a conventional reverse oscillator device

* Explanation of symbols for the main parts of the drawing 8

6-Input shaft 7-Output shaft

10,11,12,13,14-Gear device 15,15-Gear

25,26,27-Synchronizer 30-Clutch Hub

31-Sleeve 32-Spring

33-Key 42-Synchronizer

43-Brake member 45-Taper compression contact surface

46-Sync Ring

The object of the present invention, the transmission case 2 is installed, the transmission cover 3 is attached to the rear end of the transmission case 2 in a state capable of oil sealing, the clutch (2) to the clutch (4) The input shaft 6 connected to the engine output shaft 7 and the output shaft 7 arranged in parallel with the input shaft 6 are supported freely through the pair of bearings 8 and 9, respectively. (6) and the output shaft (7) are provided with five forward gear devices (10), (11), (12), (13) and (14) gears for first and fifth gears. Between the gears 20 of the gear unit 14 of the gear unit 14 and the gear unit 14 of the gear unit 12 and the gear unit 12 and the gear unit 12 for the third and fourth stages. At the rear, respectively, to the synchronizers 25, 26, 27 which selectively couple one of the gears 20, 21, 17, 18, 19 to the input shaft 6 or the output shaft 7. Installed and operated according to the operation of the shift lever via a shift device In;

On the rear side of the clutch hub 30, a brake member 43 is formed in a cylindrical shape and an inner diameter side thereof is a protrusion of a spline, and the brake member 43 is a spline formed on a splined protrusion 43a and a cover 3. Coupling with the projection 3a, the input shaft 6 is installed in the axial direction by the link lip (3b) provided on the spline projection (3a) is impossible to move, the outer circumferential surface to the rear portion to enlarge the diameter A tapered compression contact surface 45 having a circumferential surface shape is formed, and a synchronous ring 46 which is friction-compressed to the tapered compression contact surface 45 and a spline-fitting fitting to the sleeve 31 is fitted on the front portion. Is achieved by.

Therefore, it is possible to prevent the ringing of the gears and the generation of vibration noise during the backward movement.

In addition, assemblability and fabrication of parts can be improved, and the production cost thereof can be reduced.

And the mission battlefield can be shortened.

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

1 is an overall device diagram showing a manual transmission of the present invention, Figure 2 is a side cross-sectional view showing a reverse oscillator device of the present invention.

This embodiment is a case where the present invention is applied to the reverse oscillator device of the five-speed manual transmission.

First, the manual transmission 1 will be described. As shown in Fig. 1, a substantially cylindrical transmission case 2 is provided, and a transmission cover made of steel or aluminum is provided on the rear terminal portion of the transmission case 2. 3) is attached in the shape of an oil seal.

In the transmission case 2, an input shaft 6 connected to the engine output shaft 7 via a clutch 4 and an output shaft 7 arranged in parallel with the input shaft 6 are provided with a pair of bearings 8, 9. Rotation is freely supported via each other, and five forward gear units 10, 11, 12, 13 and 14 are provided on the input shaft 6 and the output shaft 7, respectively. .

Output gears 20 on the input gears 15, 16, 17, 18, 19 and the output shaft 7 of the input shaft 6 of the gear units 10, 11, 12, 13, 14. (21) (22) (23) (24) are always meshed with one side of gear (10) (11) (12) (13) (14) (24) is formed integrally with the input shaft (6) or the output shaft (7) or is fitted in a spline manner so as to rotate integrally, and the other gears (20), (21), (17) (18) 19 is attached to the input shaft 6 or the output shaft 7 so that relative rotation is possible.

In addition, lubricant oil is filled in the transmission case 2 and in the space formed by the transmission case 2 and the transmission cover 3 to the vicinity of the lower terminal of the output shaft 7.

Between the gears 20 and 21 of the first and second gear units 10 and 11 and the gears 17 and 18 of the gear units 12 and 13 for the third and fourth gears. At the rear of the gear 19 of the gear device 14, a synchronizing device for selectively coupling one of the gears 20, 21, 17, 18, 19 to the input shaft 6 or the output shaft 7. It is provided in (25)-(27), respectively, and the movement synchronizers 25, 26, 27 are operated according to the operation of a shift lever via the shift device which is not shown in figure.

Since the synchronizing devices 25, 26 and 27 have the same configuration, the synchronizing device 27 for the five-stage will be described. As shown in FIG. 1, the input gear 19 of the gear unit 14 for the five-stage is shown. Relative rotation is freely supported in the vicinity of the rear terminal portion of the input shaft 6, and the clutch hub 30 is concentrically splined to the input shaft 6 at the rear of the input gear 19, and the clutch hub In the outer circumference of 30 the sleeve 31 is fitted in a splined manner so as to be movable in the axial direction.

Then, between the clutch hub 30 and the sleeve, a key 33 applied to the outside through an annular front and rear pair of springs 32 is mounted at predetermined intervals of the circumference, and the boss extending rearwardly to the input gear 19. The part 19a is formed and the gear spline 19b which can be splined-fit to the sleeve 31 is formed in the front part of the boss part 19a.

On the other hand, a gear spline 19b that can be splined to the sleeve 31 is formed on the front portion of the boss portion 19a, and a conical surface that is a portion whose diameter extends forward on the rear portion of the boss portion 19a. A tapered compression contact surface 19c is formed, and a synchronization ring 34 that can be splined to the sleeve 31 is fitted to the tapered compression contact surface 19c.

The shift device described above is fixed to the rear end portion of the shift rod, which is freely supported from the lower side of the input shaft 6 to the forward / backward direction to operate the 5-stage synchronization device 27 as shown in FIG. The shift fork 36 which has a pair of subpressure part which extends upwards from a rod and engages in the annular groove 31a of the sleeve 31 is provided.

When the sleeve 31 is operated forward through the shift rod and the shift fork 36 by the operation of the shift lever, the synchronizer 27 moves forward through the key 33 first. To the taper compression-contacting surface 19a, and the rotation of the input gear 19 is rotated by the sleeve 31, which rotates integrally with the input shaft 6 via the clutch hub 30, and the synchronous ring 34 Slowly motivated through

Next, it moves inwardly on the key 33 and is splined into the synchronous ring 34 on the sleeve 31 and the rotation of the sleeve 31 and the input gear 19 is approximately completely synchronized before the sleeve 31 The gear spline 19b of the input gear 19 is fitted in a spline manner so that both are integrally coupled.

A reversing gear device 37 is provided between the first gear device 10 and the second gear device 11 as described above, and the gear device 37 has a parent to the input shaft 6 as shown in FIG. As shown in FIG. 1, the input gear 38 and the output gear 39 formed in the circumferential circumference of the sleeve 25a of the synchronizer 25 are freely rotated on the idle shaft 40 and the shaft An idle gear 41 composed of an idle gear 41 supported to be able to slide in a direction, and being moved rearward to the idle gear 41 via a shift rod 35 and a shift fork (not shown) linked thereto. Engaging with the input gear 38 and the output gear 39, the rotational force in the opposite direction to the input shaft 6 is transmitted to the output shaft 7.

That is, when the shift rod is operated forward by the operation of the shift lever, it is moved backward.

Next, the reverse oscillator device 42 for preventing vibration noise during the reverse movement from the neutral state or the ultra low speed forward state will be described.

Next, a description will be given of the reverse oscillator device 42 of the present invention, as shown in FIG. 2, a brake member 43 having a substantially cylindrical shape on the rear side of the clutch hub 30 and a splined protrusion on an inner diameter side thereof is provided. The brake member 43 is coupled to the spline protrusion 43a and the spline protrusion 3a which are integrally or additionally provided with the cover 3, and is supported concentrically on the input shaft 6 and at the same time as the spline protrusion 3a. The link lip 3b provided keeps the movement in the axial direction impossible.

The outer circumferential surface is provided with a tapered compression contact surface 45 in the form of a circumferential surface, the portion of which is enlarged in the rearward direction, and the front portion is capable of friction compression contact with the tapered compression contact surface 45 and the sleeve 31. A synchronous ring 46 which can be fitted in a spline manner is fitted out.

Next, the operation of the above-mentioned back vibrator 42 will be described.

In the neutral state or the ultra low speed forward state, since the input shaft 6 rotates integrally with the engine output shaft 7 via the clutch 4, when the clutch 4 is removed and moved back in this state, the input shaft 6 is clutched. After removing (4), make a moment of inertia.

At this time, the sleeve 31 is moved backward through the shift rod and the shift fork 36 by the backward movement operation of the shift lever, and the priority synchronous ring 46 moves backward through the key 33 so that the brake member 43 Frictional contact with the tapered compression contact surface 45 of (), and rotation of the sleeve 31 which is about to rotate integrally with the input shaft 6 via the clutch tub 30 is gradually braked via the synchronous ring 46. Next, the key 33 is moved inward so that the sleeve 31 is splined to the synchronous ring 46 and the inertia rotation of the input shaft 6 is almost completely braked before the idle gear 41 is moved to the input gear ( 38 and the output gear 39 are moved backward, thereby preventing damage to the gears 38, 39, and 41 during reverse movement, as well as preventing shifts, noise, and vibration.

The synchronous device can restrict the rotation of the brake member 43 by splines integrally or separately installed with the cover, and can easily restrain the axial movement with the link lip 36, and the cover 3 and the brake member 43. ) Can be managed in an assay state, and the assemblability of the reverse oscillator device 42 can be greatly improved as compared with the conventional art of FIG. 4 in which a restraining device is separately provided on the shift fork.

In addition, by supporting the brake member on the input shaft and eliminating bloating and other installation parts as compared to the conventional one, it is possible to reduce the cost as well as reduce as shown by the box mark (X) of the virtual line in the overall length of the mission.

The present invention as described above has a simple configuration and is common to the gears 38, 39, and 41 for preventing damage, noise, vibration, and 5-step synchronizing device 27 for the reverse movement. Since the backward synchronizing device 42 is constituted by using the member, the reverse synchronizing device 42 can be manufactured at a lower cost.

In addition, since all members of the reverse oscillator can be easily assembled to the cover, cost reduction and assemblability are greatly improved.

And it is a very useful invention, such as the effect which can reduce the overall length of a mission, etc. is acquired.

Claims (1)

The transmission case 2 is installed, and the transmission cover 3 is attached to the rear terminal of the transmission case 2 in a state capable of oil sealing, and the transmission case 2 is connected to the engine output shaft 7 via a clutch 4. The rotation of the input shaft 6 and the output shaft 7 arranged in parallel with the input shaft 6 are supported freely via a pair of bearings 8 and 9, respectively, and the input shaft 6 and the output shaft 7 ) Is equipped with five forward gear units 10, 11, 12, 13, 14 for the first and fifth gears, and gears for the first and second gear gears 10 and 11, respectively. 20, 21 and between the gears 17 and 18 of the gear units 12 and 13 for the third and fourth gears, and the gears 20 behind the gears 19 of the gear unit 14 for the five gears. It is provided in each of the synchronization devices 25, 26, 27 for selectively coupling one of the 21, 17, 18, 19 to the input shaft 6 or the output shaft 7, and through a shift device. Operating in accordance with the operation of the shift lever; On the rear side of the clutch hub 30, a brake member 43 is formed in a cylindrical shape and an inner diameter side is formed of a spline protrusion. Coupling with the projection 3a, the input shaft 6 is installed in the axial direction by the link lip (3b) provided on the spline projection (3a) is impossible to move, the outer circumferential surface to the rear portion to enlarge the diameter A tapered compression contact surface 45 having a circumferential surface shape is formed, and a synchronous ring 46 which is friction-compressed to the tapered compression contact surface 45 and a spline-fitting fitting to the sleeve 31 is fitted on the front portion. The rear-vibrator of the transmission, characterized in that.