阅读说明：本技术 一种单向传动轴及单向变速机构 (One-way transmission shaft and one-way speed change mechanism ) 是由 韦光珍 张玉平 吴有智 林雪峰 黄杰 于 2020-02-26 设计创作，主要内容包括：本发明公开了一种单向传动轴及单向传动变速机构,传动轴由同轴布置的前输入轴和输入轴组成,前输入轴和输入轴之间通过单向离合器联接,前输入轴和输入轴分别与单向离合器的外圈或内圈连接；将变速器前壳体和变速器中壳体分开,将原输入轴替换为上述单向传动轴。本发明在满足交通安全法规、能够利用发动机的摩擦功来辅助制动控制车速、从而保障行车安全的前提下,可以改变传统的驾驶模式、减轻汽车驾驶人的劳动强度,可以显著延长离合器的使用寿命、节约汽车的使用维修费用,大幅度减少换档时动力中断的时间,提高车辆的驾乘舒适性。(The invention discloses a one-way transmission shaft and a one-way transmission speed change mechanism, wherein the transmission shaft consists of a front input shaft and an input shaft which are coaxially arranged, the front input shaft and the input shaft are connected through a one-way clutch, and the front input shaft and the input shaft are respectively connected with an outer ring or an inner ring of the one-way clutch; the front transmission shell and the middle transmission shell are separated, and the original input shaft is replaced by the one-way transmission shaft. The invention can change the traditional driving mode, reduce the labor intensity of automobile drivers, remarkably prolong the service life of the clutch, save the use and maintenance cost of the automobile, greatly reduce the power interruption time during gear shifting and improve the driving comfort of the automobile on the premise of meeting the traffic safety regulations and utilizing the friction work of the engine to assist braking to control the automobile speed so as to ensure the driving safety.)

1. A one-way transmission shaft is characterized in that: the transmission shaft consists of a front input shaft and an input shaft which are coaxially arranged, the front input shaft and the input shaft are connected through a one-way clutch, and the front input shaft and the input shaft are respectively connected with an outer ring or an inner ring of the one-way clutch.

2. The unidirectional drive shaft of claim 1, wherein: the end part of the front input shaft is provided with an umbrella-shaped connecting part, the umbrella-shaped connecting part is connected with the outer ring of the one-way clutch, and the inner ring of the one-way clutch is sleeved on the input shaft.

3. The unidirectional drive shaft of claim 2, wherein: the outer ring of the one-way clutch or the umbrella-shaped connecting part at the end part of the front input shaft are provided with locking combination teeth, the input shaft is provided with a locking gear hub, the locking gear hub is sleeved with a locking gear ring capable of moving axially, and the locking gear ring can enable the locking combination teeth and the locking gear hub to move synchronously.

4. A one-way drive shaft according to claim 3, wherein: the locking combination teeth are positioned on the umbrella-shaped connecting part at the end part of the front input shaft, and a synchronous gear ring is arranged between the locking combination teeth and the locking gear ring.

5. The unidirectional drive shaft of claim 4, wherein: the synchronous gear ring is sleeved at the end part of the umbrella-shaped connecting part of the front input shaft, and the locking combination gear is positioned at the inner side of the synchronous gear ring.

6. A kind of unidirectional drive speed change mechanism, characterized by: a unidirectional transmission shaft as claimed in any one of claims 3 to 5 as an input shaft of a variator.

7. The unidirectional flux transmission mechanism of claim 6, wherein: the front input shaft and the input shaft of the one-way transmission shaft are respectively installed through bearings.

8. A method for modifying a transmission into a one-way transmission comprises a transmission front shell and a transmission middle shell, wherein a speed change mechanism is arranged in the transmission middle shell, and an original input shaft of the speed change mechanism is arranged in the transmission front shell, and the method is characterized in that: separating the front and middle transmission housings and replacing the original input shaft with a one-way propeller shaft according to any one of claims 3 to 5.

9. The method of retrofitting a transmission as a one-way transmission according to claim 8, wherein: a one-way transmission shell is additionally arranged between a front transmission shell and a middle transmission shell, a front input shaft of the one-way transmission shaft is installed in the front transmission shell through a bearing, an input shaft of the one-way transmission shaft is installed in the one-way transmission shell through a bearing, and the end part of the input shaft is connected into the middle transmission shell.

Technical Field

The invention relates to an automobile transmission, in particular to a transmission shaft thereof.

Background

At present, most of domestic commercial vehicles, mini-cars and partial passenger cars use mechanical transmissions with manual gear shifting, and some vehicle types use AMT automatic transmissions, and the two transmissions have the advantages of simple structure, low cost, easiness in manufacturing, convenience in maintenance, high transmission efficiency and the like, but the gear shifting can be realized only by separating and engaging a clutch during gear shifting, and power interruption is inevitable. For manual transmissions: when a vehicle runs under the working conditions of heavy load, traffic jam and urban congestion, the driving operation intensity can be increased by frequently using the clutch, the clutch is easy to wear early, and the use and maintenance cost of the vehicle is increased, which is an inherent defect that the existing manual mechanical transmission cannot avoid; for an AMT automatic transmission: in addition to similar defects, the disengagement and engagement of the clutch during shifting can increase the control difficulty, generate a jerk feeling and affect the driving comfort of the vehicle, which is the most main reason that the AMT is difficult to popularize in passenger cars.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: for various different motorcycle types that use above-mentioned two kinds of mechanical transmissions such as commercial car, minicar and passenger car, provide a derailleur with unidirectional drive mechanism, to manual transmission: the manual smooth gear shifting without stepping on a clutch pedal can be realized, so that the driving operation intensity is reduced, the service life of the clutch is prolonged, and the use and maintenance cost of a vehicle is saved; for an AMT automatic transmission: because the clutch is not required to be separated and jointed during gear shifting, the service life of the clutch can be prolonged, the use and maintenance cost of the vehicle can be saved, the control difficulty of the AMT can be reduced, the power interruption time of the gear shifting can be greatly reduced, and the driving comfort of the vehicle can be improved. Meanwhile, the friction work of the engine is required to be reliably utilized to assist braking, so that the vehicle speed is controlled to ensure the driving safety, and the traffic safety regulations are met. .

The technical scheme of the invention is as follows:

a one-way transmission shaft is composed of a front input shaft and an input shaft which are coaxially arranged, wherein the front input shaft and the input shaft are connected through a one-way clutch, and the front input shaft and the input shaft are respectively connected with an outer ring or an inner ring of the one-way clutch.

The end part of the front input shaft is provided with an umbrella-shaped connecting part, the umbrella-shaped connecting part is connected with the outer ring of the one-way clutch, and the inner ring of the one-way clutch is sleeved on the input shaft.

The outer ring of the one-way clutch or the umbrella-shaped connecting part at the end part of the front input shaft are provided with locking combination teeth, the input shaft is provided with a locking gear hub, the locking gear hub is sleeved with a locking gear ring capable of moving axially, and the locking gear ring can enable the locking combination teeth and the locking gear hub to move synchronously.

The locking combination teeth are positioned on the umbrella-shaped connecting part at the end part of the front input shaft, and a synchronous gear ring is arranged between the locking combination teeth and the locking gear ring.

The synchronous gear ring is sleeved at the end part of the umbrella-shaped connecting part of the front input shaft, and the locking combination gear is positioned at the inner side of the synchronous gear ring.

The one-way transmission speed change mechanism uses the one-way transmission shaft as an input shaft of the speed change mechanism.

The front input shaft and the input shaft of the one-way transmission shaft are respectively installed through bearings.

A method for modifying a transmission into a one-way transmission comprises a transmission front shell and a transmission middle shell, wherein a speed change mechanism is installed in the transmission middle shell, an original input shaft of the speed change mechanism is installed in the transmission front shell, the transmission front shell and the transmission middle shell are separated, and the original input shaft is replaced by the one-way transmission shaft.

A one-way transmission shell is additionally arranged between a front transmission shell and a middle transmission shell, a front input shaft of the one-way transmission shaft is installed in the front transmission shell through a bearing, an input shaft of the one-way transmission shaft is installed in the one-way transmission shell through a bearing, and the end part of the input shaft is connected into the middle transmission shell.

The invention has the beneficial effects that:

on the premise of meeting traffic safety regulations and utilizing the friction work of an engine to assist braking to control the vehicle speed so as to ensure driving safety, the manual transmission provided by the invention comprises the following components: the traditional driving mode can be changed, the labor intensity of a driver of the automobile is reduced, the service life of the clutch can be obviously prolonged, and the use and maintenance cost of the automobile is saved; for an AMT automatic transmission: because the clutch is not required to be separated and jointed during gear shifting, the service life of the clutch can be prolonged, the use and maintenance cost of the vehicle can be saved, the control difficulty of the AMT can be reduced, the power interruption time during gear shifting can be greatly reduced, and the driving comfort of the vehicle can be improved. Has great social and economic significance and is worthy of popularization and application.

Drawings

FIG. 1 shows an external structure of a mechanical transmission with a one-way transmission.

Fig. 2 shows the internal structure of the unidirectional transmission mechanism.

Fig. 3 shows a one-way transmission state.

Fig. 4 a one-way locked state.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.