CN217355455U

CN217355455U - Rearmounted speed change mechanism of gearbox

Info

Publication number: CN217355455U
Application number: CN202221586511.2U
Authority: CN
Inventors: 颜灵永
Original assignee: Zhejiang Sanhuan Gear Co ltd
Current assignee: Zhejiang Sanhuan Gear Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-02
Anticipated expiration: 2032-06-23

Abstract

The utility model provides a rearmounted speed change mechanism of gearbox belongs to automotive filed. The gear shifting device solves the problems that the existing gear shifting box applied to large trucks and heavy-duty trucks is complex in structure and gear shifting and speed changing and blocking. This rearmounted speed change mechanism of gearbox, including the gearbox casing and be located the speed change mechanism of gearbox casing, the input shaft has set gradually in the speed change mechanism, jackshaft and selector shaft, it is equipped with a plurality of change gear and is used for the synchronous subassembly that the variable speed shifted to lie in all the cover on jackshaft and the input shaft, a plurality of change gear intermeshing cooperation transmission that lie in on jackshaft and the input shaft, it all overlaps and is equipped with output gear to lie in the jackshaft both ends, be provided with in the speed change mechanism with output gear intermeshing complex driven differential subassembly, still be provided with in the speed change mechanism and be used for controlling its synchronous subassembly and carry out the subassembly of shifting, and still be provided with the sensor on the gearbox casing. The utility model has the advantages of structural design is reasonable and the smooth and easy variable speed of shifting.

Description

Rearmounted speed change mechanism of gearbox

Technical Field

The utility model belongs to the automobile field relates to a gearbox, in particular to gearbox rearmounted speed change mechanism.

Background

When the engine is applied to an automobile, the speed needs to be adjusted by using the transmission to drive the automobile to run, the transmission is arranged between the engine and a rear axle, so that the automobile plays roles of reducing speed, increasing torque and adjusting high and low gears when being started, and the conventional transmission is mainly divided into a manual transmission and an automatic transmission.

With continuous social progress and development, large trucks and heavy trucks are widely applied, and because the number of gearboxes capable of being matched with the large trucks and the heavy trucks is relatively small, the series structures of the gearboxes matched with the large trucks and the heavy trucks in the market are relatively complex, and the speed change and gear shift synchronization effect is poor, so that the popularization of the large trucks and the heavy trucks in the market is greatly restricted, and therefore the gearboxes matched with the large trucks and the heavy trucks need to be researched and developed urgently.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a gearbox rearmounted speed change mechanism on being applicable to large-scale truck and heavy load truck, solve more than.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a gearbox rearmounted speed change mechanism, includes the gearbox casing and is located the speed change mechanism of gearbox casing, its characterized in that, speed change mechanism in have set gradually input shaft, jackshaft and selector shaft, be located jackshaft and input shaft on all the cover be equipped with a plurality of change gear and be used for the synchronous component of variable speed gearshift, a plurality of be located the transmission of the meshing cooperation of change gear intermeshing on jackshaft and the input shaft, be located jackshaft both ends on all the cover be equipped with output gear, speed change mechanism in be provided with the driven differential subassembly of output gear intermeshing cooperation, speed change mechanism in still be provided with and be used for controlling its synchronous component to carry out the gearshift to shift gears the subassembly, just the gearbox casing on still be provided with the sensor that is used for responding to the speed change mechanism rotational speed.

In the above rear transmission mechanism of the transmission, the differential assembly is composed of a differential support fixedly connected with the transmission housing, a main reduction gear sleeved on the differential support and in meshed transmission with the output gear, and an oil seal fixedly connected with the differential support and used for preventing lubricating oil from leaking out.

In the above mentioned rear-mounted speed-changing mechanism of the transmission, the synchronizing assembly comprises synchronizing gears sleeved on the intermediate shaft and the input shaft, a connecting sleeve sleeved on the synchronizing gears and connected with the shifting assembly, a synchronizing sleeve located between the connecting sleeve and the corresponding speed-changing gear, and a synchronizing gear ring located between the synchronizing sleeve and the synchronizing gears, and the synchronizing assembly is located between a plurality of speed-changing gears and used for speed-changing and shifting.

In the above rear transmission mechanism of the transmission case, the shift assembly comprises a plurality of shift forks which are connected with the connecting sleeve and respectively sleeved on the corresponding shift shafts, and a driving unit which is connected with one end of the shift forks and is used for driving the shift forks to shift gears.

In the gearbox rear speed change mechanism, the two ends of the intermediate shaft are provided with the intermediate bearings, and one end face of each intermediate bearing is abutted against and mounted on one side of the output gear.

In the above rear transmission mechanism of the transmission, the transmission housing is composed of a transmission case, a front cover plate and a rear cover plate, and the front cover plate and the rear cover plate are both fixedly connected with the transmission case body through bolts.

Compared with the prior art, this rearmounted speed change mechanism of gearbox structural design is reasonable, dependable performance, with low costs, can realize this speed change mechanism fast shift speed through synchronous subassembly, and the effectual gearbox that has realized shifts gears at the during operation and changes speed smoothly, and the card can not appear pausing, is provided with the rotational speed that the sensor is used for responding to speed change mechanism simultaneously.

Drawings

Fig. 1 is a schematic perspective view of a transmission case of the rear transmission mechanism of the transmission case.

Fig. 2 is a schematic perspective view of the internal structure of the transmission case of the rear transmission mechanism of the transmission case.

Fig. 3 is a partial internal structural schematic diagram of the rear transmission mechanism of the transmission.

Fig. 4 is a schematic view of the half-section structure of fig. 3.

Fig. 5 is a schematic perspective view of a synchronizing assembly of the rear derailleur of the present transmission.

FIG. 6 is a schematic diagram of a half-section of a synchronizing assembly of the rear derailleur of the present invention.

In the figure, 1, a speed change mechanism; 2. an input shaft; 3. an intermediate shaft; 4. a shift shaft; 5. a speed change gear; 6. an output gear; 7. a sensor; 8. a differential carrier; 9. a main reduction gear; 10. an oil seal; 11. a synchronizing gear; 12. connecting sleeves; 13. a synchronous sleeve; 14. a synchronizing ring gear; 15. shifting a fork; 16. a drive unit; 17. a middle bearing; 18. a transmission case; 19. a front cover plate; 20. a back cover plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figures 1, 2, 3 and 4, fig. 5, fig. 6 shows, this rearmounted speed change mechanism 1 of gearbox, speed change mechanism 1 including the gearbox casing with be located the gearbox casing, input shaft 2 has set gradually in speed change mechanism 1, jackshaft 3 and selector shaft 4, it is equipped with a plurality of change gear 5 and is used for the synchronous subassembly of variable speed shifting to all overlap on jackshaft 3 and the input shaft 2 to be located, a plurality of is located the transmission of the intermeshing cooperation of change gear 5 on jackshaft 3 and the input shaft 2, it all overlaps on 3 both ends of jackshaft to be located and is equipped with output gear 6, be provided with in the speed change mechanism 1 with the driven differential subassembly of the intermeshing cooperation of output gear 6, still be provided with in the speed change mechanism 1 and be used for controlling its synchronous subassembly and carry out the gearshift's of shifting gears subassembly, and still be provided with the sensor 7 that is used for responding to the 1 rotational speed of speed change mechanism on the gearbox casing.

In more detail, the differential assembly is composed of a differential support 8 fixedly connected with the transmission housing, a main reduction gear 9 sleeved on the differential support 8 and in meshed transmission with the output gear 6, and an oil seal 10 fixedly connected with the differential support 8 and used for preventing lubricating oil from leaking out.

In more detail, the synchronizing assembly is composed of a synchronizing gear 11 sleeved on the intermediate shaft 3 and the input shaft 2, a connecting sleeve 12 sleeved on the synchronizing gear 11 and connected with the gear shifting assembly, a synchronizing sleeve 13 located between the connecting sleeve 12 and the corresponding speed change gear 5, and a synchronizing ring gear 14 located between the synchronizing sleeve 13 and the synchronizing gear 11, and the synchronizing assembly is located between the plurality of speed change gears 5 and used for speed change and gear shifting.

In more detail, the shift assembly comprises a plurality of shift forks 15 connected with the connecting sleeves 12 and respectively sleeved on the corresponding shift shafts 4, and a driving unit 16 connected with one end of the shift forks 15 and used for driving the shift forks 15 to shift gears.

In more detail, the intermediate shaft 3 is provided with intermediate bearings 17 at both ends thereof, and one end surface of the intermediate bearing 17 is abutted against and mounted on one side of the output gear 6.

In more detail, the transmission case is composed of a transmission case 18, a front cover plate 19 and a rear cover plate 20, and the front cover plate 19 and the rear cover plate 20 are fixedly connected with the transmission case 18 through bolts.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the transmission mechanism 1, the input shaft 2, the intermediate shaft 3, the shift shaft 4, the transmission gear 5, the output gear 6, the sensor 7, the differential carrier 8, the main reduction gear 9, the oil seal 10, the synchronizing gear 11, the connecting sleeve 12, the synchronizing sleeve 13, the synchronizing ring gear 14, the shift fork 15, the drive unit 16, the intermediate bearing 17, the transmission case 18, the front cover plate 19, the rear cover plate 20, etc., are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A gearbox rear speed change mechanism (1) comprises a gearbox shell and a speed change mechanism (1) located in the gearbox shell, and is characterized in that an input shaft (2), an intermediate shaft (3) and a gear shifting shaft (4) are sequentially arranged in the speed change mechanism (1), a plurality of speed change gears (5) and synchronous components for speed change gear shifting are sleeved on the intermediate shaft (3) and the input shaft (2), the speed change gears (5) on the intermediate shaft (3) and the input shaft (2) are in meshed fit transmission, output gears (6) are sleeved on two ends of the intermediate shaft (3), a differential component in meshed fit transmission with the output gears (6) is arranged in the speed change mechanism (1), a gear shifting component for controlling the synchronous components to shift gears is further arranged in the speed change mechanism (1), and a sensor (7) for sensing the rotating speed of the speed change mechanism (1) is also arranged on the gearbox shell.

2. The gearbox rear derailleur (1) according to claim 1, characterized in that said differential assembly is composed of a differential carrier (8) fixed to the gearbox housing, a main reduction gear (9) sleeved on the differential carrier (8) and in mesh transmission with the output gear (6), and an oil seal (10) fixedly connected to the differential carrier (8) and used for preventing the lubricant oil from leaking out.

3. The gearbox rear derailleur (1) according to claim 1, wherein the synchronizing assembly consists of synchronizing gears (11) sleeved on the intermediate shaft (3) and the input shaft (2), a connecting sleeve (12) sleeved on the synchronizing gears (11) and connected with the shifting assembly, a synchronizing sleeve (13) positioned between the connecting sleeve (12) and the corresponding transmission gear (5), and a synchronizing ring gear (14) positioned between the synchronizing sleeve (13) and the synchronizing gears (11), and the synchronizing assembly is positioned between a plurality of transmission gears (5) and used for shifting gears.

4. The gearbox rear derailleur (1) according to claim 3, wherein the gearshift assembly comprises a plurality of shift forks (15) connected to the connecting sleeves (12) and respectively sleeved on the corresponding gearshift shafts (4), and a driving unit (16) connected to one end of the shift forks (15) and used for driving the shift forks (15) to shift gears.

5. A gearbox rear derailleur (1) according to claim 1, characterized in that said intermediate shaft (3) is provided with intermediate bearings (17) at both ends, said intermediate bearings (17) being mounted with one end face abutting against one side of the output gear (6).

6. The gearbox rear derailleur (1) according to claim 1, wherein the gearbox housing is composed of a gearbox casing (18), a front cover plate (19) and a rear cover plate (20), and the front cover plate (19) and the rear cover plate (20) are both fixedly connected with the gearbox casing (18) through bolts.