阅读说明：本技术 半自动换挡降扭副变速机构 (Semi-automatic shift gears drop turns round secondary gear ) 是由 韦光珍 吴有智 张玉平 于 2019-08-23 设计创作，主要内容包括：本发明公开了一种半自动降扭副变速器,包括输入轴和输出轴,输入轴和输入轴同轴布置,输入轴端部插入输入轴轴向的凹槽中,输入轴端部的凹槽中安装有直接档单向离合器,直接档单向离合器的外圈和输入轴连接,直接档单向离合器内圈安装在输出轴上。输出轴上安装有换挡齿毂和换挡齿套,输入轴端部有直接档结合齿,调节换挡齿套的位置可以控制换挡齿毂是否联接直接档结合齿。本发明在能够利用发动机的摩擦功来辅助制动、从而控制车速保证行车安全的前提下,车辆在行驶中需要换挡时可以不踏离合器踏板,从而减轻汽车驾驶人的操作劳动强度、延长离合器的使用寿命、节约车辆的使用维修费用、同时还能增大车辆的爬坡能力、提高车辆的动力性。(The invention discloses a kind of semi-automatic drops to turn round auxiliary transmission, including input shaft and output shaft, input shaft and input shaft are coaxially arranged, input shaft end is inserted into the groove of input shaft axial direction, direct high one-way clutch is installed in the groove of input shaft end, the outer ring of direct high one-way clutch and input axis connection, direct high one-way clutch inner ring are mounted on output shaft.Shift tooth hub and shift tooth set are installed, there is direct high conjunction gear in input shaft end, and the position for adjusting shift tooth set can control whether shift tooth hub couples direct high conjunction gear on output shaft.The present invention is under the premise of can utilize the frictional work of engine to carry out auxiliary braking, guarantee traffic safety to regulation speed, vehicle can not step on clutch pedal when needing to shift gears under steam, to mitigate the operation labor intensity of motorist, the service life for extending clutch, the use and maintenance expense for saving vehicle while the climbing capacity that can also increase vehicle, the dynamic property for improving vehicle.)

1. a kind of semi-automatic drop turns round auxiliary transmission, including input shaft (1) and output shaft (2), it is characterised in that: input shaft (1) and Input shaft (2) is coaxially arranged, and input shaft (2) end is inserted into the groove of input shaft (1) axial direction, the groove of input shaft (1) end In be equipped with direct high one-way clutch (4), the outer ring of direct high one-way clutch (4) and input shaft (1) connection, direct high list It is mounted on output shaft (2) to clutch inner ring (3).

2. semi-automatic drop turns round auxiliary transmission according to claim 1, it is characterised in that: output shaft is equipped with shift tooth on (2) Hub (7) and shift tooth set (8), input shaft (1) end have direct high conjunction gear (6), and the position for adjusting shift tooth set (8) can be controlled Whether system shift tooth hub (7) couples direct high conjunction gear (6).

3. semi-automatic drop turns round auxiliary transmission according to claim 2, it is characterised in that: have on input shaft (1) driving tooth (5) and The driven tooth (15) of jackshaft (13) engages, and the jackshaft driving tooth (14) and output shaft driven tooth (10) of jackshaft (13) are nibbled It closes, output shaft driven tooth (10) is mounted on the outer ring of one-way clutch (41), and the connection of one-way clutch inner ring (11) side is high Shelves conjunction gear (9), one-way clutch inner ring (11) and high-grade conjunction gear (9) empty set are on output shaft (2).

4. semi-automatic drop turns round auxiliary transmission according to claim 3, it is characterised in that: the position of moving gear shift tooth set (8) can Whether couple high-grade conjunction gear (9) with control shift tooth hub (7).

5. semi-automatic drop turns round auxiliary transmission according to claim 3, it is characterised in that: the diameter of driven tooth (15) is less than centre Axis driving tooth (14) diameter.

6. semi-automatic drop turns round auxiliary transmission according to claim 3, it is characterised in that: driving tooth (5) is located at input shaft (1) end Portion, for driving tooth (5) axial aperture for installing direct high one-way clutch (4), output shaft (2) passes through direct high one-way clutch Inner ring (3) is simultaneously slidably matched with the realization of the groove of input shaft (1) end.

7. semi-automatic drop turns round auxiliary transmission according to claim 6, it is characterised in that: direct high conjunction gear (6) is connected in master On the outside of movable tooth (5).

8. turning round auxiliary transmission according to any one of the claim 3-8 semi-automatic drop, it is characterised in that: input shaft (1) and output Position, a bearing and input shaft (1) cooperation is fixedly mounted by two bearings in axis (2), another bearing and output shaft (2) are matched It closes.

9. turning round auxiliary transmission according to any one of the claim 3-8 semi-automatic drop, it is characterised in that: this pair gear and master Speed changer is used cooperatively, and output shaft (2) transfers power to basic transmission by the output shaft driving tooth (12) of its end.

10. semi-automatic drop turns round auxiliary transmission according to claim 8, it is characterised in that: by original basic transmission procapsid (21) it is separated with basic transmission shell (24), and is packed into secondary speed change shell (22) therebetween, this pair gear is installed In basic transmission side, the position of shift tooth set (8) is controlled by electric gear shifting mechanism (23), is passed through manual gear shift mechanism (25) Control basic transmission.

Technical field

It is that a kind of be mounted on assists carrying out semi-automatic shift gears on manual transmission the present invention relates to automotive transmission field Secondary gear.

Background technique

Domestic either heavy truck, middle card, light truck or micro- face microcaloire now, all use the mechanical transmission of manual shift, Although this speed changer has many advantages, such as that of simple structure and low cost, easy to maintenance and transmission efficiency is high, when due to gear shift Need to step on clutch pedal and be just able to achieve gear shift, vehicle heavy duty, traffic congestion and urban congestion operating condition when driving, frequently use from Clutch not only will increase driver behavior intensity while be also easy to lead to clutch premature wear, increase the use and maintenance of vehicle at This, this is that existing armstrong's patent speed change self structure is unavoidable.In addition, vehicle is light when due to vehicle zero load, full load vehicle Weight, it is of poor quality it is bigger, overload when it is even more serious, cause to be difficult to take into account when speed changer and Engine Matching, the power of engine Property and economy are difficult to be not fully exerted.

In individual with car market field also there is also a certain number of manual gear cars, manual gear car is because its shift is tired Difficulty makes new hand's study get up to be difficult, and needs to practice for a long time skillfully to shift gears.

Summary of the invention

The technical problems to be solved by the present invention are: for manual gear gearbox shifting it is cumbersome, to clutch abrasion The problems such as serious, provides a kind of secondary speed changing structure, is installed in manual transmission and semi-automatic shift gears may be implemented.

The present invention adopts the following technical solutions:

A kind of semi-automatic drop torsion auxiliary transmission, including input shaft and output shaft, input shaft and input shaft are coaxially arranged, input shaft end Portion is inserted into the groove of input shaft axial direction, direct high one-way clutch is equipped in the groove of input shaft end, direct high is unidirectional The outer ring of clutch and input axis connection, direct high one-way clutch inner ring are mounted on output shaft.

Shift tooth hub and shift tooth set are installed, there is direct high conjunction gear in input shaft end, adjusts shift tooth on output shaft The position of set can control whether shift tooth hub couples direct high conjunction gear.

There is the driven tooth engagement of driving tooth and jackshaft on input shaft, the jackshaft driving tooth and output shaft of jackshaft are driven Tooth engagement, output shaft driven tooth are mounted on the outer ring of one-way clutch, and one-way clutch inner ring side connects high-grade conjunction gear, One-way clutch inner ring and high-grade conjunction gear sky are set on the output shaft.

The position of moving gear shift tooth set can control whether shift tooth hub couples high-grade conjunction gear.

The diameter of driven tooth is less than jackshaft active tooth diameter.

Driving tooth is located at input shaft end, and driving tooth axial aperture for installing direct high one-way clutch, wear by output shaft It crosses direct high one-way clutch inner ring and is slidably matched with the realization of the groove of input shaft end.

Direct high conjunction gear is connected on the outside of driving tooth.

Input shaft and output shaft pass through two bearings fixed installation positions, a bearing and input shaft cooperation, another axis It holds and cooperates with output shaft.

Secondary gear is mounted on basic transmission side, and the position of shift tooth set is controlled by electric gear shifting mechanism, is passed through Manual gear shift mechanism controls basic transmission.This pair gear and firmly speed changer is used cooperatively, output shaft are defeated by its end Shaft driving tooth transfers power to basic transmission, and output shaft max. output torque is less than or equal to what basic transmission can bear Maximum input torque.

Beneficial effects of the present invention:

Since the bottom gear of secondary speed change is direct high, the maximum engine torque transmitted by it not will increase；And secondary speed change Top gear is overgear, and the maximum engine torque transmitted by it can only reduce, and therefore, turns round secondary become using this semi-automatic drop Fast device will not influence the reliability and service life of basic transmission

The present invention meets traffic safety code, when vehicle driving needs, and can reliably be assisted using the frictional work of engine Control for brake speed, to guarantee driving safety, while the matching between engine and speed changer can also be optimized, allow engine Performance is more fully played, to improve the power performance and the economy performance of vehicle；Traditional driving can also be changed Mode, the labor intensity for mitigating motorist, in normally travel, shift no longer needs stepping on clutch, and it is difficult to greatly reduce operation Degree；The service life of clutch can significantly be extended, save the use and maintenance expense of automobile；

Have no need to change original manual basic transmission structure, it is only necessary to cut basic transmission shell, this pair is installed in insertion The repacking to existing manual gear gearbox can be completed in transmission mechanism.The configuration of the present invention is simple, it is low in cost, manufacture be easy, Easy to maintenance, particularly suitable China's actual conditions, have biggish social effect and economic significance, are worthy of popularization.

Detailed description of the invention

Fig. 1 is the secondary gear schematic diagram of embodiment 2.

Fig. 2 is the secondary speed change low grade single-direction transmission schematic diagram of embodiment 2.

Fig. 3 is the secondary speed change direct high single-direction transmission schematic diagram of embodiment 2.

Fig. 4 is the secondary speed change low grade one-way clutch locking schematic diagram of embodiment 2.

Fig. 5 is 3 structural schematic diagram of embodiment.

Specific embodiment