CN209856364U - Gear shifting assisting system of mechanical transmission - Google Patents
Gear shifting assisting system of mechanical transmission Download PDFInfo
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- CN209856364U CN209856364U CN201920263092.0U CN201920263092U CN209856364U CN 209856364 U CN209856364 U CN 209856364U CN 201920263092 U CN201920263092 U CN 201920263092U CN 209856364 U CN209856364 U CN 209856364U
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- shifting
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Abstract
The utility model discloses a mechanical type derailleur helping hand system of shifting, including gearshift and with the helping hand cylinder that gearshift is connected: the gear shifting device comprises a shell, a gear shifting guide shaft, a power assisting input block, a power assisting output block, a gear selecting guide shaft, a rocker arm, a driving block, a shifting fork and a shifting fork shaft; the boosting cylinder comprises a cylinder body, a boosting input rod, a positioning spring, a baffle ring, a clamp spring, a boosting output rod, a piston and a valve core. Mechanical type derailleur helping hand system of shifting can make automotive transmission shift lightly, steadily, and the operation of shifting is comfortable, alleviates driver working strength.
Description
Technical Field
The utility model belongs to the technical field of car mechanical type derailleur, concretely relates to mechanical type derailleur helping hand system of shifting.
Background
For large trucks, the manual truck type is still the mainstream in the market at present, but the trucks are usually in severe use environment and have complex road conditions; and the truck transmission has complex gear shifting operation and large gear shifting force, so that the working strength of a driver is enhanced.
For example, chinese patent application No. 201711399398.0 discloses a two-dimensional mechanical power shift device for an automobile transmission, which includes two parts, namely an axial propulsion device and a lateral rotation control device; the axial propelling device comprises an axial driving motor (1), an axial coupler (17), an axial screw (16), an axial concave sliding block (3), an axial sliding chute (4), an axial push rod (5), an axial connecting rod (6), an axial baffle (15), a shifting fork shaft (7), a mounting base plate (2) and the like; an axial driving motor (1) is fixed on a mounting base plate (2), an output shaft at the right end of the axial driving motor (1) is connected with an axial screw (16) through a coupler, the axial screw (16) is connected with an axial concave sliding block (3) through threads, the axial concave sliding block (3) is arranged in an axial sliding groove (4), the right end of the axial concave sliding block (3) is fixedly connected with an axial push rod (5), the right end of the axial push rod (5) is connected with the left end of an axial connecting rod (6) through a ball hinge, and the right end of the axial connecting rod (6) is fixedly connected with the left end of a shifting fork shaft; when the axial driving motor (1) rotates, the axial coupling (17) drives the axial screw rod (16) to rotate, the axial screw rod (16) pushes the axial concave sliding block (3) to generate axial motion in the axial sliding groove (4) through a threaded hole at the left end of the axial concave sliding block (3), the axial concave sliding block (3) pushes the axial push rod (5) to generate axial motion, the axial push rod (5) pushes the axial connecting rod (6) to generate axial motion, and the axial connecting rod (6) pushes the shifting fork shaft (7) to generate axial motion; the transverse propelling device comprises a transverse driving motor (11), a transverse coupling (12), a transverse screw (13), a transverse concave sliding block (9), a transverse sliding chute (10), a transverse baffle (14), a transverse push rod (8), a transverse rocker (18), a mounting base plate (2) and the like; the transverse driving motor (11) is fixed on the mounting base plate (2), an output shaft at the right end of the transverse driving motor (11) is connected with a transverse screw (13) through a coupler, the transverse screw (13) is connected with a transverse concave sliding block (9) through threads, the transverse concave sliding block (9) is installed in a transverse sliding chute (10), the right end of the transverse concave sliding block (9) is fixedly connected with a transverse push rod (8), the right end of the transverse push rod (8) is hinged with the upper end of a transverse rocker (18), a groove is formed in the lower end of the transverse rocker (18), a plate-shaped bulge is formed in the axial connecting rod (6) along the rod direction, the plate-shaped bulge of the axial connecting rod (6) is installed in the groove; when the transverse driving motor (11) rotates, the transverse coupling (12) drives the transverse screw (13) to rotate, the transverse screw (13) pushes the transverse concave sliding block (9) to generate transverse motion in the transverse sliding groove (10) through a threaded hole at the left end of the transverse concave sliding block (9), the transverse concave sliding block (9) pushes the transverse push rod (8) to generate transverse motion, the transverse push rod (8) pushes the transverse rocker (18) to generate rotation, the transverse rocker (18) drives the axial connecting rod (6) to generate rotation, and the axial connecting rod (6) drives the shifting fork shaft (7) to generate rotation.
The above prior art discloses a mechanical power gearshift, and it has the technical problem that the operation of shifting is complicated promptly, the power of shifting is big.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mechanical type derailleur helping hand system of shifting, mechanical type derailleur helping hand system of shifting passes through atmospheric pressure helping hand and in order to assist the power of shifting, the effectual power of shifting that has reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a gear shifting assisting system of a mechanical transmission comprises a gear shifting device and an assisting cylinder connected with the gear shifting device:
the gear shifting device comprises a shell, a gear shifting guide shaft, a power assisting input block, a power assisting output block, a gear selecting guide shaft, a rocker arm, a driving block, a shifting fork and a shifting fork shaft;
the gear shifting guide shaft can be rotatably arranged in the shell, the power assisting output block is fixedly arranged on the gear shifting guide shaft, the power assisting input block is fixedly arranged on the gear selecting guide shaft, the power assisting input block is connected to the power assisting output block, the rocker arm is connected to the gear selecting guide shaft, the driving block can be axially movably arranged on the gear shifting guide shaft, the driving block is fixedly arranged on the gear selecting guide shaft, the shifting fork shaft can be axially slidably arranged in the transmission box body, the shifting fork is fixedly arranged on the shifting fork shaft, and the driving block is fixedly connected with the shifting fork shaft.
The boosting cylinder comprises a cylinder body, a boosting input rod, a positioning spring, a baffle ring, a clamp spring, a boosting output rod, a piston and a valve core;
the cylinder body is fixedly arranged on the shell, the power-assisted input rod is movably arranged in the power-assisted output rod through the snap spring, the positioning spring and the stop ring, the power-assisted output rod is connected to the piston, the piston is matched with the cylinder body, the power-assisted input rod is connected to the power-assisted input block, the power-assisted output rod is connected to the power-assisted output block, and the valve core is assembled on the power-assisted input rod.
Further, the gear shifting device further comprises a gear shifting guide block and a first pin, wherein the first pin is connected to the gear shifting guide block, and the rocker arm is connected to the first pin.
Furthermore, a second pin is further arranged on the power-assisted input block, a first key groove matched with the second pin is formed in the gear selecting guide shaft, and the second pin can move in the first key groove along the axial direction of the gear selecting guide shaft.
Furthermore, a second key groove is formed in the gear shifting guide shaft, and the second key groove is in clearance fit with the second pin so that the power assisting input block and the power assisting output block can rotate relatively.
Furthermore, the cylindrical cavity provided with the positioning spring, the baffle ring and the clamp spring is arranged in the power-assisted output rod, the clamp spring is abutted to one end of the cylindrical cavity, the clamp spring is fixed on the power-assisted output rod, the baffle ring is sleeved on the power-assisted output rod and abutted to the other end of the cylindrical cavity, and two ends of the positioning spring are respectively arranged on the clamp spring and the baffle ring.
Furthermore, an air inlet through which air enters the cylinder body is formed in the cylinder body, the air inlet is communicated with the interior of the valve core, and the valve core is opened when the power-assisted input rod is stressed and the power-assisted output rod generates relative displacement so that the air enters the air cylinder.
Compared with the prior art, the utility model discloses a superior effect lies in:
1. the gear shifting power-assisted system of the mechanical transmission of the utility model has the advantages that the gear shifting of the automobile transmission is light and stable through the matching arrangement of the gear shifting guide shaft, the power-assisted input block, the power-assisted output block, the gear selecting guide shaft, the power-assisted input rod and the power-assisted output rod, the gear shifting operation is comfortable, and the working strength of a driver is reduced;
2. mechanical type derailleur helping hand system of shifting, the power of shifting of derailleur comes from the cylinder, has improved the reliability of system.
Drawings
Fig. 1 is a schematic structural diagram of a shift assist system of a mechanical transmission according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a gear shifting device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a power cylinder according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a second pin in an embodiment of the present invention;
the drawings illustrate the following:
1-a gear shifting device, 11-a shell, 12-a gear shifting guide shaft, 13-a power-assisted input block, 131-a second pin, 14-a power-assisted output block, 15-a gear selecting guide shaft, 16-a rocker arm, 17-a driving block, 18-a gear shifting guide block, 19-a first pin, 2-a power-assisted cylinder, 21-a cylinder body, 211-an air inlet, 22-a power-assisted input rod, 23-a positioning spring, 24-a gear ring, 25-a snap spring, 26-a power-assisted output rod, 27-a piston and 28-a valve core.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the following detailed description of the present invention is made in conjunction with the accompanying drawings and the detailed description, it is to be noted that the features of the embodiments and examples of the present invention may be combined with each other without conflict.
Examples
As shown in fig. 1 to 4, a shift assist system for a mechanical transmission includes a gear shifting device 1 and an assist cylinder 2 connected to the gear shifting device 1:
the gear shifting device 1 comprises a shell 11, a gear shifting guide shaft 12, a power assisting input block 13, a power assisting output block 14, a gear selecting guide shaft 15, a rocker arm 16, a driving block 17, a shifting fork (not shown) and a shifting fork shaft (not shown);
the gear shifting guide shaft 12 is rotatably arranged in the housing 11, the power assisting output block 14 is fixedly arranged on the gear shifting guide shaft 12, the power assisting input block 13 is fixedly arranged on the gear selecting guide shaft 15, the power assisting input block 13 is connected to the power assisting output block 14, the rocker arm 16 is connected to the gear selecting guide shaft 15, the driving block 17 is axially movably arranged on the gear shifting guide shaft 12, the driving block 17 is fixedly arranged on the gear selecting guide shaft 15, the shifting fork shaft is axially slidably arranged in a transmission box body, the shifting fork is fixedly arranged on the shifting fork shaft, and the driving block 17 is fixedly connected with the shifting fork shaft;
as shown in fig. 3, the boosting cylinder 2 includes a cylinder body 21, a boosting input rod 22, a positioning spring 23, a stop ring 24, a snap spring 25, a boosting output rod 26, a piston 27 and a valve core 28;
the cylinder 21 is fixedly disposed on the housing 11, the boost input rod 22 is movably disposed in the boost output rod 26 through the snap spring 25, the positioning spring 23 and the retainer ring 24, the boost output rod 26 is connected to the piston 27, the piston 27 is engaged with the cylinder 21, wherein the boost input rod 22 is connected to the boost input block 13, the boost output rod 26 is connected to the boost output block 14, and the valve core 28 is assembled to the boost input rod 22.
The cylindrical cavity provided with the positioning spring 23, the baffle ring 24 and the clamp spring 25 is arranged in the power-assisted output rod 26, the clamp spring 25 is abutted to one end of the cylindrical cavity, the clamp spring 25 is fixed on the power-assisted output rod 26, the baffle ring 24 is sleeved on the power-assisted output rod 26 and abuts against the other end of the cylindrical cavity, and two ends of the positioning spring 23 are respectively arranged on the clamp spring 25 and the baffle ring 24.
The cylinder body 21 is provided with an air inlet 211 for air to enter the cylinder body 21, the air inlet 211 is communicated with the inside of the valve core 28, and the valve core 28 is opened when the power-assisted input rod 22 is stressed and the power-assisted output rod 26 generates relative displacement so that the air enters the air cylinder.
The boosting input rod 22 moves rightwards, the valve core 28 is opened, gas enters the cylinder to push the piston 27 to move rightwards, and meanwhile, the boosting output rod 26 also moves rightwards under the action of the piston 27, so that the effect of outputting boosting is achieved, and similarly, when the boosting input rod 22 moves leftwards, the boosting input rod 22 is reset under the action of the positioning spring 23 when external force is not applied.
The gear shift device 1 further comprises a shift guide 18 and a first pin 19, the first pin 19 being connected to the shift guide 18, the rocker arm 16 being connected to the first pin 19.
In this embodiment, the rocker arm 16 drives the shift guide 18 through the first pin 19 to perform gear selection, and when a gear is engaged, the rocker arm 16 drives the shift guide shaft 15 and the power input block 13 to rotate around an axis, and the shift guide shaft 12 and the power output block 14 are kept stationary in a gap formed by the first pin 19 and the slot of the shift guide shaft 12. At this time, the boost input block 13 drives the boost input rod 22 to open the gas valve, and the gas enters the cylinder to push the boost output rod 26 and then push the boost output block 14, the shift guide shaft 12 and the shift guide block 18 to rotate to complete the shift action.
The power-assisted input block 13 is further provided with a second pin 131, the gear selection guide shaft 15 is provided with a first key slot matched with the second pin 131, and the second pin 131 can move in the first key slot along the axial direction of the gear selection guide shaft 15 and cannot rotate along the gear selection guide shaft 15.
The gear shift guide shaft 12 is provided with a second key slot, and the second key slot is in clearance fit with the second pin 131 so that the power assisting input block 13 and the power assisting output block 14 can rotate relatively.
The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims.
Claims (6)
1. A gear shifting assisting system of a mechanical transmission comprises a gear shifting device and an assisting cylinder connected with the gear shifting device:
the gear shifting device comprises a shell, a gear shifting guide shaft, a power assisting input block, a power assisting output block, a gear selecting guide shaft, a rocker arm, a driving block, a shifting fork and a shifting fork shaft;
the transmission device is characterized in that the gear shifting guide shaft is rotatably arranged in the shell, the power-assisted output block is fixedly arranged on the gear shifting guide shaft, the power-assisted input block is fixedly arranged on the gear selecting guide shaft, the power-assisted input block is connected to the power-assisted output block, the rocker arm is connected to the gear selecting guide shaft, the driving block is axially movably arranged on the gear shifting guide shaft, the driving block is fixedly arranged on the gear selecting guide shaft, the shifting fork shaft is axially slidably arranged in the transmission box body, the shifting fork is fixedly arranged on the shifting fork shaft, and the driving block is fixedly connected with the shifting fork shaft;
the boosting cylinder comprises a cylinder body, a boosting input rod, a positioning spring, a baffle ring, a clamp spring, a boosting output rod, a piston and a valve core;
the cylinder body is fixedly arranged on the shell, the power-assisted input rod is movably arranged in the power-assisted output rod through the snap spring, the positioning spring and the stop ring, the power-assisted output rod is connected to the piston, the piston is matched with the cylinder body, the power-assisted input rod is connected to the power-assisted input block, the power-assisted output rod is connected to the power-assisted output block, and the valve core is assembled on the power-assisted input rod.
2. The mechanical transmission shift assist system of claim 1, wherein the shifter further includes a shift guide and a first pin, the first pin coupled to the shift guide, the rocker arm coupled to the first pin.
3. The mechanical transmission shift assist system of claim 1, wherein the assist input block further includes a second pin, the gear selection guide shaft defines a first key slot, the first key slot is engaged with the second pin, and the second pin is capable of moving in the key slot along an axial direction of the gear selection guide shaft but is incapable of rotating along the gear selection guide shaft.
4. The mechanical transmission shift assist system of claim 3 wherein the shift guide shaft defines a second keyway that is in clearance fit with the second pin to allow relative rotation between the assist input block and the assist output block.
5. The mechanical transmission gear shifting power-assisted system according to claim 1, wherein a cylindrical cavity is formed in the power-assisted output rod, the positioning spring, the stop ring and the snap spring are arranged in the cylindrical cavity, the snap spring abuts against one end of the cylindrical cavity, the snap spring is fixed to the power-assisted output rod, the stop ring is sleeved on the power-assisted output rod and abuts against the other end of the cylindrical cavity, and two ends of the positioning spring are respectively arranged on the snap spring and the stop ring.
6. The mechanical transmission gear-shifting power-assisted system of claim 5, wherein the cylinder body is provided with an air inlet for air to enter the cylinder body, the air inlet is communicated with the inside of the valve core, and the valve core is opened to allow air to enter the cylinder when the power-assisted input rod is stressed and the power-assisted output rod generates relative displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920263092.0U CN209856364U (en) | 2019-03-01 | 2019-03-01 | Gear shifting assisting system of mechanical transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920263092.0U CN209856364U (en) | 2019-03-01 | 2019-03-01 | Gear shifting assisting system of mechanical transmission |
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| Publication Number | Publication Date |
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| CN209856364U true CN209856364U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920263092.0U Active CN209856364U (en) | 2019-03-01 | 2019-03-01 | Gear shifting assisting system of mechanical transmission |
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| CN (1) | CN209856364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973646A (en) * | 2019-03-01 | 2019-07-05 | 重庆越博传动***有限公司 | A kind of mechanical transmission power assisted gearshift system |
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2019
- 2019-03-01 CN CN201920263092.0U patent/CN209856364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973646A (en) * | 2019-03-01 | 2019-07-05 | 重庆越博传动***有限公司 | A kind of mechanical transmission power assisted gearshift system |
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