阅读说明：本技术 一种变速箱操纵总成 (Gearbox control assembly ) 是由 张波 刘伟锋 李想 于 2021-09-28 设计创作，主要内容包括：本发明提供的一种变速箱操纵总成,包括互锁块、换挡拨头、横向换挡杆和拉板,在拉板顶部设置驱动槽,驱动槽的两侧壁的顶部设置有限位块,同时在互锁块的底部设置限位板,限位块位于两个限位板之间,同时在限位板上设置开口槽,横向换挡杆带动换挡拨头与目标挡位的拉板连接,进而通过旋转横向换挡杆带动拉板移动使其通过开口槽实现挂挡,同时限位板对其他挡位的拉板进行限位,从而达到互锁的目的。该变速箱操纵总成应用在单中间轴变速箱结构上,从使用性能、工艺性、故障率等都能满足市场的需求。(The invention provides a gearbox control assembly which comprises an interlocking block, a gear shifting head, a transverse gear shifting rod and a pulling plate, wherein a driving groove is formed in the top of the pulling plate, limiting blocks are arranged on the tops of two side walls of the driving groove, limiting plates are arranged at the bottom of the interlocking block, the limiting blocks are located between the two limiting plates, an open groove is formed in each limiting plate, the transverse gear shifting rod drives the gear shifting head to be connected with the pulling plate of a target gear, the pulling plate is driven to move by rotating the transverse gear shifting rod to realize gear engagement through the open groove, and meanwhile the limiting plates limit the pulling plates of other gears, so that the purpose of interlocking is achieved. The gearbox control assembly is applied to a single-intermediate-shaft gearbox structure, and can meet the market requirements in terms of service performance, manufacturability, failure rate and the like.)

1. A gearbox control assembly is characterized by comprising an interlocking block (5), a gear shifting block (8), a transverse gear shifting rod (10) and a pulling plate;

the interlocking block (5) is arranged on the transverse gear shifting rod (10) in a straddling mode and moves axially in synchronization with the transverse gear shifting rod (10), and the gear shifting head (8) is fixedly sleeved on the transverse gear shifting rod (10) and is located inside the interlocking block (5);

the top of the pulling plate is provided with a driving groove, the triggering end of the gear shifting head (8) extends into the driving groove of the target gear pulling plate and is used for driving the pulling plate to move to realize gear engagement, and the tops of two side walls of the driving groove are provided with limiting blocks;

the bottom of interlocking piece (5) sets up two limiting plates that are parallel to each other, and the limiting block of arm-tie is located between two limiting plates, is provided with the open slot on the limiting plate, and shift dial 8 and open slot are located the coplanar, and the open slot is located the target and keeps off the removal route that corresponds the arm-tie, and can only pass through an arm-tie simultaneously.

2. A transmission operating assembly according to claim 1 wherein the width of the open slot is greater than the thickness of the pull plate and less than the thickness of both pull plates.

3. A gearbox actuating assembly according to claim 1, characterised in that the axial direction of the transverse shift lever (10) is arranged perpendicular to the direction of movement of the pull plate.

4. A gearbox actuating assembly according to claim 1, characterised in that a flat key (6) is provided between the shift finger and the lateral shift lever (10), the shift finger and the lateral shift lever (10) being connected by a stop screw (7).

5. A gearbox actuating assembly according to claim 1, characterised in that the lateral shift lever (10) is supported at both ends on an actuating housing (4) which is also provided with a gear selection drive means, the gear selection drive means being connected to the lateral shift lever (10) for driving the interlocking blocks to move to effect gear selection.

6. A gearbox actuating assembly according to claim 5, characterised in that the gear selection drive comprises a gear selection shaft (15) and a gear selection dial (13), the gear selection shaft (15) is arranged on the actuating housing and the axial direction of the gear selection shaft is perpendicular to the axial direction of the transverse shift lever (10), and the gear selection dial (13) is fixedly connected to the gear selection shaft (15) and is movably connected with the interlocking block (5).

7. A gearbox actuating assembly according to claim 5, characterised in that a gear engaging drive is provided on the actuating housing, the gear engaging drive being connected to the interlock block for driving the transverse gear shift lever (10) to rotate to effect gear engagement.

8. A gearbox actuating assembly according to claim 7, characterised in that the gear engaging drive means comprises a gear shift joint (1), a joint cover (2) and a spline housing (3);

the end part of the transverse gear shifting rod is sleeved with the spline sleeve (3), the transverse gear shifting rod is supported on the control shell through the spline sleeve (3), the other end of the spline sleeve (3) is sleeved with the gear shifting joint (1), and the gear shifting joint (1) and the transverse gear shifting rod are connected with the inner spline of the spline sleeve (3) through outer splines.

Technical Field

The invention relates to the technical field of gearboxes, in particular to a gearbox control assembly.

Background

At present, the shift mechanism of the manual transmission in China is a shifting fork shaft type shift mechanism, the function of selecting and shifting gears of the transmission is mainly realized through a control assembly, and the self-locking and interlocking structures of the transmission are integrated in an upper cover assembly.

The interlocking mechanism consists of a shifting fork shaft and a steel ball, wherein the shifting fork shaft is provided with a groove, and after one shifting fork shaft moves, the steel ball controlled by interlocking is driven to move, so that the axial moving directions of other shifting fork shafts are locked, and the purpose of interlocking is achieved; the self-locking mechanism achieves that the steel ball falls into the R groove of the shifting fork shaft after the gear is engaged through the steel ball and the spring, the shifting fork shaft cannot axially move through the pressure of the spring, and the self-locking purpose is achieved. However, the upper cover and the control assembly rotate in the upper cover due to the fact that gear shifting is carried out by the shifting fork shaft, and therefore the eccentric wear phenomenon of the shifting fork is caused, and the fault of the gearbox is caused.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a gearbox control assembly which can effectively solve the problem of gear interlocking of a single-intermediate-shaft gearbox assembly of a single-pull-plate type gear shifting structure.

The invention is realized by the following technical scheme:

a gearbox control assembly comprises an interlocking block, a gear shifting block, a transverse gear shifting rod and a pull plate;

the interlocking block is arranged on the transverse gear shifting rod in a straddling mode and moves axially synchronously with the transverse gear shifting rod, and the gear shifting head is fixedly sleeved on the transverse gear shifting rod and is positioned inside the interlocking block;

the top of the pulling plate is provided with a driving groove, the triggering end of the gear shifting block extends into the driving groove of the target gear pulling plate and is used for driving the pulling plate to move to realize gear engagement, and the tops of two side walls of the driving groove are provided with limiting blocks;

the bottom of interlocking piece sets up two limiting plates that are parallel to each other, and the limiting block of arm-tie is located between two limiting plates, is provided with the open slot on the limiting plate, and shift dial 8 and open slot are located the coplanar, and the open slot is located the target and keeps off the removal route that corresponds the arm-tie, and can only pass through an arm-tie simultaneously.

Preferably, the width of the open slot is larger than the thickness of the pull plate and smaller than the thickness of the two pull plates.

Preferably, the axial direction of the transverse shift lever is perpendicular to the moving direction of the pulling plate.

Preferably, a flat key is arranged between the gear shifting head and the transverse gear shifting rod, and the gear shifting head is connected with the transverse gear shifting rod through a stop screw.

Preferably, both ends of the transverse gear shifting rod are supported on the control shell, and the control shell is further provided with a gear selecting driving device which is connected with the transverse gear shifting rod and used for driving the interlocking block to move to realize gear selection.

Preferably, the gear selection driving device comprises a gear selection shaft and a gear selection shifting block, the gear selection shaft is arranged on the control shell, the axial direction of the gear selection shaft is perpendicular to the axial direction of the transverse gear shifting rod, and the gear selection shifting block is fixedly connected to the gear selection shaft and movably connected with the interlocking block.

Preferably, the operating shell is further provided with a gear engaging driving device, and the gear engaging driving device is connected with the interlocking block and used for driving the transverse gear shifting rod to rotate to achieve gear engaging.

Preferably, the gear engaging driving device comprises a gear shifting joint, a joint cover and a spline sleeve;

the end part of the transverse gear shifting rod is sleeved with the spline sleeve, the transverse gear shifting rod is supported on the control shell through the spline sleeve, the other end of the spline sleeve is sleeved with the gear shifting joint, and the gear shifting joint and the transverse gear shifting rod are connected with an inner spline of the spline sleeve through an outer spline.

Compared with the prior art, the invention has the following beneficial technical effects:

the invention provides a gearbox control assembly which comprises an interlocking block, a gear shifting head, a transverse gear shifting rod and a pulling plate, wherein a driving groove is formed in the top of the pulling plate, limiting blocks are arranged on the tops of two side walls of the driving groove, limiting plates are arranged at the bottom of the interlocking block, the limiting blocks are located between the two limiting plates, an open groove is formed in each limiting plate, the transverse gear shifting rod drives the gear shifting head to be connected with the pulling plate of a target gear, the pulling plate is driven to move by rotating the transverse gear shifting rod to realize gear engagement through the open groove, and meanwhile the limiting plates limit the pulling plates of other gears, so that the purpose of interlocking is achieved. The gearbox control assembly is applied to a single-intermediate-shaft gearbox structure, and can meet the market requirements in terms of service performance, manufacturability, failure rate and the like.

Drawings

FIG. 1 is an internal structural view of a transmission operating assembly of the present invention;

FIG. 2 is a transverse cross-sectional view of the transmission operating assembly of the present invention;

FIG. 3 is a longitudinal cross-sectional view of the transmission operating assembly of the present invention;

FIG. 4 is an external view of the transmission operating assembly of the present invention;

FIG. 5 is a schematic view of the transmission operating assembly and pull plate assembly of the present invention;

FIG. 6 is a bottom view of the transmission operating assembly and pull plate assembly of the present invention.

In the figure: 1. a shift joint; 2. a joint cover; 3. a spline housing; 4. a manipulation housing; 5. an interlock block; 6. a flat bond; 7. a set screw; 8. a gear shifting block; 9. a linear bearing; 10. a lateral shift lever; 11. a spring; 12. an elastic cylindrical pin; 13. a gear selecting and shifting head; 14. a gear selection window; 15. and selecting a gear shaft.

Detailed Description

The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.

Referring to fig. 1-4, a transmission operating assembly includes an operating housing 4, an interlock block 5, a shift knob 8, a lateral shift lever 10, and a pull plate.

The both ends of horizontal gear level 10 support on manipulating the casing 4, interlocking piece 5 straddles and sets up on horizontal gear level 10 to with the synchronous axial displacement of horizontal gear level 10, shift the fixed cover of shifting block 8 and establish on horizontal gear level 10, and be located interlocking piece 5's inside, shift the trigger end of shifting block 8 and be connected with the arm-tie of gearbox.

The top of the pulling plate is provided with a driving groove, the triggering end of the gear shifting block 8 extends into the driving groove of one pulling plate and is used for driving the pulling plate to move to realize gear engagement, the gear shifting block 8 can move axially along the driving groove and is connected with different pulling plates, and the tops of two side walls of the driving groove are provided with limiting blocks;

the bottom of interlocking piece 5 sets up two limiting plates that are parallel to each other, and the limiting block of arm-tie is located between two limiting plates, is provided with the open slot on the limiting plate, and shift handle 8 and open slot are located the coplanar, and the open slot is located the target and keeps off the removal route that corresponds the arm-tie, and can only pass through an arm-tie simultaneously.

A flat key 6 is arranged between the gear shifting head and the transverse gear shifting rod 10 to realize power transmission, and meanwhile, the gear shifting head and the transverse gear shifting rod 10 are connected through a stop screw 7 to realize mutual positioning to enable the gear shifting head and the transverse gear shifting rod to move synchronously.

The operating shell is further provided with a gear selecting driving device, and the gear selecting driving device is connected with the transverse gear shifting rod 10 and used for driving the interlocking blocks to move to realize gear selection.

The gear selecting driving device comprises a gear selecting shaft 15 and a gear selecting shifting head 13, the gear selecting shaft 15 is arranged on the control shell, the axial direction of the gear selecting shaft is perpendicular to the axial direction of the transverse gear shifting rod 10, the gear selecting shifting head 13 is fixedly connected to the gear selecting shaft 15 through an elastic cylindrical pin 12 and movably connected with the interlocking block 5, the gear selecting shifting head 13 rotates to drive the interlocking block 5 to move along the axial direction of the transverse gear shifting rod 10, the interlocking block 5 drives the transverse gear shifting rod 10 to move left and right, the transverse gear shifting rod 10 drives the gear shifting head 8 to move, and the gear shifting head is matched with driving grooves of different pulling plates, so that the gear selecting purpose is achieved.

And a gear engaging driving device is further arranged on the control shell and connected with the interlocking block and used for driving the transverse gear shifting rod 10 to rotate to realize gear engaging.

The gear engaging driving device comprises a gear shifting joint 1, a joint cover 2 and a spline housing 3.

The spline housing 3 is sleeved on the end of the transverse gear shifting rod, one end of the transverse gear shifting rod is supported on the control shell through the spline housing 3, the gear shifting joint 1 is sleeved on the other end of the spline housing 3, the gear shifting joint 1 and the transverse gear shifting rod are connected with an internal spline of the spline housing 3 through external splines to achieve synchronous rotation, and the joint cover 2 is arranged on the end of the control shell and sleeved on the gear shifting joint 1.

When putting into gear, shift joint 1 is rotatory under the effect of outside application of force, and shift joint 1 passes through splined connection with spline housing 3, and horizontal gear level 10 is connected with spline housing 3 through the spline, and it is rotatory to drive spline housing 3 by shift joint 1, and spline housing 3 drives horizontal gear level 10 again and rotates, and horizontal line gear level 10 drives and shifts 8 rotations of shifting block to reach the purpose of shifting.

The other end of the transverse gear shifting rod 10 is sleeved with a linear bearing 9 and supported on the shell through the linear bearing 9, a spring 11 is further arranged at the end of the transverse gear shifting rod 10 and located at the same end of the transverse gear shifting rod 10 as the linear bearing 9, and the spring and the linear bearing 9 are used for enabling the gear shifting head 8 to return to a balance position after being shifted.

The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.