CN110094501B - A device of cutting off gas in advance for helping hand system of shifting - Google Patents
A device of cutting off gas in advance for helping hand system of shifting Download PDFInfo
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- CN110094501B CN110094501B CN201910307015.5A CN201910307015A CN110094501B CN 110094501 B CN110094501 B CN 110094501B CN 201910307015 A CN201910307015 A CN 201910307015A CN 110094501 B CN110094501 B CN 110094501B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
- F16H2061/301—Hydraulic or pneumatic motors or related fluid control means therefor for power assistance, i.e. servos with follow up action
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention relates to an advance air cut-off device for a gear shifting power-assisted system, which comprises a gear shifting trigger block, a fixed seat, a trigger switch, a trigger ejector rod and an electromagnetic control valve, wherein the gear shifting trigger block is fixed on a gear shifting shaft, the top of the gear shifting trigger block is provided with a neutral gear groove, and two sides of the neutral gear groove are correspondingly provided with a front gear engaging arc-shaped bulge and a rear gear engaging arc-shaped bulge; the fixed seat is fixed on the upper side of the gear shifting trigger block, the trigger switch is fixed on the fixed seat, the trigger ejector rod is arranged in a guide hole of the fixed seat, the upper end of the trigger ejector rod is positioned on the lower side of a contact pin of the trigger switch, the lower end of the trigger ejector rod is positioned in a neutral position groove, the electromagnetic control valve is a normally-open two-position three-way electromagnetic valve and is connected with the trigger switch in series between the positive electrode and the negative electrode of a vehicle power supply, an air inlet P of the electromagnetic control valve is connected with an air source, an air outlet A of the electromagnetic control. The device has the advantages of simple structure, low cost, sensitive action, high accuracy and strong practicability.
Description
Technical Field
The invention relates to a gear shifting power-assisted system, in particular to an advanced air cut-off device for the gear shifting power-assisted system.
Background
With the development of vehicle technology, people have higher and higher requirements on driving comfort. The portability of gear shifting is an important index for evaluating driving comfort. For heavy vehicles, the gear shifting mechanism is heavier when shifting gears, the required gear shifting force is large, and the labor intensity of drivers is high, so that the attention of the industry is more and more attracted. The existing field usually adopts a synchronizer to solve the phenomena of impact, gear beating and the like during gear shifting, and reduces the gear shifting force by adding a gear shifting assisting system so as to improve the portability of gear shifting. A gearbox of a heavy vehicle mostly adopts a pneumatic high-low gear switching auxiliary box, and a gearbox gear shifting power-assisted system generally adopts a pneumatic power-assisted mode. The power assisting effect of the gear shifting power assisting system is mainly embodied in the power assisting action time which is advanced, so that the clutch is easy to act without being completely separated, the load of the synchronizer is increased, and the service life of the synchronizer is seriously influenced; and the boosting action is delayed in time and cannot play a role in gear shifting boosting. Therefore, the starting time of the gear shifting power-assisted system is controlled by a clutch separation complete signal in the field, namely, the signal is provided for the gear shifting power-assisted system to start the air power assistance after the clutch is completely separated, so that the air power assistance only acts after the clutch is completely separated. This method solves the problem of the timing of the power-assist opening, but the timing of the power-assist ending is when the clutch is engaged. And the gear shifting process only needs large gear shifting force in the synchronizer synchronizing process, and after the synchronizer synchronizing process is finished, if the gear shifting assisting force is not finished before the synchronizer gear sleeve is meshed with the gear ring, collision and secondary impact are generated between locking surfaces in the synchronizer gear sleeve and gear ring meshing process, and the performance and the service life of the synchronizer are also influenced. And at present, no technology for accurately controlling the assistance ending time of the gear shifting assistance system exists in the field.
Disclosure of Invention
The invention aims to provide an advanced air cut-off device for a gear shifting power-assisted system, which has the advantages of simple structure, low cost, sensitive action, high accuracy and strong practicability and realizes the technical aim of accurately controlling the power-assisted finishing time of the gear shifting power-assisted system.
In order to solve the problems in the prior art, the invention provides an advanced air cut-off device for a gear shifting power-assisted system, which comprises a gear shifting trigger block, a fixed seat, a trigger switch, a trigger ejector rod and an electromagnetic control valve, wherein the gear shifting trigger block is fixed on a gear shifting shaft of a gearbox, a neutral gear groove with a notch width larger than the groove bottom width is arranged at the top of the gear shifting trigger block, and a front gear engaging arc-shaped bulge and a rear gear engaging arc-shaped bulge are correspondingly arranged on two sides of the neutral gear groove; the fixed seat is fixed on the upper side of the gear shifting trigger block; the trigger switch is a normally open switch, and is fixed on the fixed seat, and the contact pin of the trigger switch faces downwards; the trigger ejector rod is arranged in a guide hole formed in the fixed seat on the lower side of the trigger switch, the upper end of the trigger ejector rod is positioned on the lower side of a contact pin of the trigger switch, and the lower end of the trigger ejector rod is positioned in a neutral position groove of the gear shifting trigger block; the electromagnetic control valve is a normally open two-position three-way electromagnetic valve, and is connected with the trigger switch in series between the positive electrode and the negative electrode of the vehicle power supply, the air inlet P of the electromagnetic control valve is connected with an air source, the air outlet A of the electromagnetic control valve is connected with the gear shifting assisting system, and the air outlet T of the electromagnetic control valve is communicated with the atmosphere.
Furthermore, the invention relates to an advanced air-break device for a gear shifting power-assisted system, wherein the front gear engaging arc-shaped bulge and the rear gear engaging arc-shaped bulge are of symmetrical structures and are correspondingly and smoothly connected with two side walls of the neutral gear groove in a transition manner.
The invention further discloses an early air-break device for a shift assisting system, wherein the distance between the lower end of a contact pin of a trigger switch and the upper end of a trigger push rod is x, the connecting line between the center point of the groove bottom of a neutral gear groove and the axis of a shift shaft is m1, the length of m1 is r1, the connecting line between the starting point of a front gear shifting arc-shaped protrusion and the axis of the shift shaft is m2, the length of m2 is r2, the included angle between m2 and m1 is α, r2-r1-x is y, y represents the trigger stroke of the trigger switch, α -theta is delta α, delta α is 1-2 degrees, and theta represents the rotation angle of the shift shaft corresponding to the synchronous stroke of a synchronizer.
Furthermore, the invention discloses an advanced air cut-off device for a shift power-assisted system, wherein a connecting line from a terminal point of the front gear engaging arc-shaped protrusion to the axis of the shift shaft is m3, and an included angle between m2 and m1 is equal to or larger than β, which represents a rotation angle of the shift shaft corresponding to a gear engaging stroke.
Further, the invention relates to an early air-break device for a gear shifting power-assisted system, wherein α is 12-15 degrees, and β is 20-25 degrees.
Furthermore, the invention relates to an advanced air cut-off device for a gear shifting power-assisted system, wherein the triggering ejector rod is in sliding fit with the peripheral wall of the guide hole in the fixed seat, and the peripheral wall of the triggering ejector rod is provided with an air channel along the axial direction.
Further, the invention relates to an advanced gas cut-off device for a gear shifting power-assisted system, wherein the lower end of the trigger ejector rod is a spherical head, and the upper end of the trigger ejector rod is a flat head.
Furthermore, the invention relates to an advanced air-break device for a gear shifting power-assisted system, wherein the groove bottom of the neutral gear groove is a flat bottom, and the convex surface of the front gear arc-shaped protrusion is a cylindrical surface taking the gear shifting shaft as an axis.
Furthermore, the invention discloses an advanced air cut-off device for a gear shifting power-assisted system, wherein the trigger switch is screwed in a threaded hole formed in the fixed seat on the upper side of the guide hole.
Furthermore, the invention relates to an advanced gas cut-off device for a gear shifting power-assisted system, wherein a limit octagonal head is arranged at the upper side position of a fixed seat of a trigger switch, and a distance adjusting gasket is arranged between the limit octagonal head and the fixed seat.
Compared with the prior art, the advanced gas cut-off device for the gear shifting power-assisted system has the following advantages: according to the invention, the gear shifting trigger block is fixed on the gear shifting shaft of the gearbox by arranging the gear shifting trigger block, the fixed seat, the trigger switch, the trigger ejector rod and the electromagnetic control valve, the top of the gear shifting trigger block is provided with a neutral gear groove with the width of a notch larger than the width of the bottom of the gear shifting trigger block, and the two sides of the neutral gear groove are correspondingly provided with the front gear engaging arc-shaped bulge and the rear gear engaging arc-shaped bulge; fixing the fixed seat on the upper side of the gear shifting trigger block; the trigger switch is a normally open switch, and is fixed on the fixed seat with the contact pin facing downwards; the trigger ejector rod is arranged in a guide hole formed in the fixed seat on the lower side of the trigger switch, the upper end of the trigger ejector rod is located on the lower side of a contact pin of the trigger switch, and the lower end of the trigger ejector rod is located in a neutral position groove of the gear shifting trigger block; the electromagnetic control valve is a normally open two-position three-way electromagnetic valve, and is connected in series with the trigger switch between the positive electrode and the negative electrode of the vehicle power supply, the air inlet P of the electromagnetic control valve is connected with an air source, the air outlet A of the electromagnetic control valve is connected with a gear shifting assisting system, and the air outlet T of the electromagnetic control valve is communicated with the atmosphere. Therefore, the advance air cut-off device for the gear shifting power-assisted system is simple in structure, low in cost, sensitive in action, high in accuracy and strong in practicability. In practical application, when the gearbox is in a neutral position, the neutral position groove of the gear shifting trigger block is opposite to the trigger ejector rod, the lower end of the trigger ejector rod is positioned in the neutral position groove under the action of gravity, a gap exists between the trigger ejector rod and a contact pin of the trigger switch at the moment, the trigger switch is not switched on, the electromagnetic control valve is not electrified and is in a normally open state, an air inlet P of the electromagnetic control valve is communicated with an air outlet A, the air outlet A is isolated from an air outlet T, an air source enters the gear shifting power-assisted system through the air inlet P and the air outlet A of the electromagnetic control valve, and the gear shifting. When a driver operates the gear shifting mechanism to shift forward, the gear shifting trigger block can rotate along with the gear shifting shaft and press the lower end of the trigger ejector rod to enable the trigger ejector rod to do linear motion along the axis; in the process that the lower end of the trigger ejector rod moves from the neutral gear groove to the starting point of the front gear arc-shaped protrusion, the trigger ejector rod gradually moves upwards until a contact pin of the trigger switch is pressed to trigger the trigger switch; after the trigger switch is switched on, the electromagnetic control valve is powered on and is in a closed state, the air inlet P of the electromagnetic control valve is isolated from the air outlet A, the air outlet A is communicated with the air outlet T, and the gear shifting assisting system is isolated from the air source and loses the gear shifting assisting force. By the mode, the central angle between the starting point of the arc-shaped protrusion of the front gear and the central point of the bottom of the neutral gear groove, which takes the gear shifting shaft as the center of a circle, is matched with the rotation angle of the gear shifting shaft corresponding to the synchronous stroke of the synchronizer, so that the timing of finishing the power assisting of the gear shifting power assisting system can be controlled after the synchronous process of the synchronizer is finished and before the gear sleeve of the synchronizer is meshed with the gear ring. The principle and process of the backward gear and the forward gear are the same, and are not described in detail herein. The invention realizes the accurate control of the finish time of the power assistance, solves the problem that the synchronizer is continuously acted by the gear shifting power assistance and causes secondary impact in the prior art, improves the comfort and the portability of gear shifting, and ensures the safety and the reliability of the synchronizer.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic illustration of an advanced air shutoff apparatus for a shift assist system in neutral according to the present invention;
FIG. 2 is a schematic diagram of the forward cut-off for the shift assist system of the present invention in a forward gear shift;
FIG. 3 is a schematic diagram of the early air shutoff device for a shift assist system of the present invention in a reverse gear position.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for understanding, and are not intended to limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 to 3, the embodiment of the invention of an advanced gas cut-off device for a shift assist system comprises a shift trigger block 1, a fixed seat 2, a trigger switch 3, a trigger push rod 4 and an electromagnetic control valve 5. The gear shifting trigger block 1 is fixed on a gear shifting shaft 6 of a gearbox, a neutral gear groove 11 with the width of a notch larger than the width of the groove bottom is formed in the top of the gear shifting trigger block 1, and a front gear engaging arc-shaped protrusion 12 and a rear gear engaging arc-shaped protrusion 13 are correspondingly arranged on two sides of the neutral gear groove 11. Fix fixing base 2 in the upside of shifting trigger block 1. The trigger switch 3 is a normally open switch, and the trigger switch 3 is fixed to the holder 2 with the contact pin 31 thereof facing downward. The trigger mandril 4 is arranged in a guide hole arranged on the lower side of the trigger switch 3 of the fixed seat 2, the upper end of the trigger mandril 4 is positioned on the lower side of a contact pin 31 of the trigger switch 3, and the lower end of the trigger mandril 4 is positioned in a neutral position groove 11 of the gear shifting trigger block 1. The electromagnetic control valve 5 is a normally open two-position three-way electromagnetic valve, the electromagnetic control valve 5 and the trigger switch 3 are connected in series between the positive electrode and the negative electrode of the vehicle power supply, the air inlet P of the electromagnetic control valve 5 is connected with an air source, the air outlet A of the electromagnetic control valve 5 is connected with a gear shifting assisting system, and the air outlet T of the electromagnetic control valve 5 is communicated with the atmosphere.
The arrangement of the structure forms the advanced air cut-off device for the gear shifting power-assisted system, which has the advantages of simple structure, low cost, sensitive action, high accuracy and strong practicability. In practical application, when the gearbox is in a neutral position, the neutral position groove 11 of the gear shifting trigger block 1 is over against the trigger ejector rod 4, the lower end of the trigger ejector rod 4 is positioned in the neutral position groove 11 under the action of gravity, a gap exists between the trigger ejector rod 4 and the contact pin 31 of the trigger switch 3 at the moment, the trigger switch 3 is not switched on, the electromagnetic control valve 5 is not electrified and is in a normally open state, the air inlet P is communicated with the air outlet A, the air outlet A is isolated from the air outlet T, the air source enters the gear shifting power-assisted system through the air inlet P and the air outlet A of the electromagnetic control valve 5, and the gear shifting power-assisted system can normally. When a driver operates the gear shifting mechanism to shift forward, the gear shifting trigger block 1 rotates along with the gear shifting shaft 6 and presses the lower end of the trigger ejector rod 4 to enable the trigger ejector rod to do linear motion along the axis. In the process that the lower end of the trigger ejector rod 4 moves from the neutral position groove 11 to the starting point of the front gear arc-shaped protrusion 12, the trigger ejector rod 4 gradually moves upwards until the contact pin 31 of the trigger switch 3 is pressed to be triggered and connected. After the trigger switch 3 is switched on, the electromagnetic control valve 5 is powered on and is in a closed state, the air inlet P of the electromagnetic control valve is isolated from the air outlet A, the air outlet A is communicated with the air outlet T, and the gear shifting assisting system is isolated from an air source and loses gear shifting assisting force. By the mode, the central angle between the starting point of the front gear-engaging arc-shaped protrusion 12 and the central point of the bottom of the neutral gear groove 11 by taking the gear shifting shaft 6 as the center is matched with the rotation angle of the gear shifting shaft corresponding to the synchronous stroke of the synchronizer, so that the timing of finishing the power assisting of the gear shifting power assisting system can be controlled after the synchronous process of the synchronizer is finished and before the gear sleeve of the synchronizer is meshed with the gear ring. The principle and process of the backward gear and the forward gear are the same, and are not described in detail herein. The invention realizes the accurate control of the finish time of the power assistance, solves the problem that the synchronizer is continuously acted by the gear shifting power assistance and causes secondary impact in the prior art, improves the comfort and the portability of gear shifting, and ensures the safety and the reliability of the synchronizer. It should be noted that, in practical application, the front engaging arc-shaped protrusion 12 and the rear engaging arc-shaped protrusion 13 are symmetrical structures, and the front engaging arc-shaped protrusion 12 and the rear engaging arc-shaped protrusion 13 are correspondingly connected with two side walls of the neutral position groove 11 in a smooth transition manner, so as to enhance the smoothness and continuity of the movement of the trigger push rod 4 in the engaging process.
As a specific embodiment, if the clearance distance between the lower end of the contact pin 31 of the trigger switch 3 and the upper end of the trigger ram 4 is represented by x, the line from the bottom center point a of the neutral notch 11 to the axis of the shift shaft 6 is represented by m1, the length of m1 is represented by r1, the line from the starting point b of the front shift arc protrusion 12 to the axis of the shift shaft 6 is represented by m2, the length of m2, and the angle between m2 and m1 is represented by α (the central angle between the starting point b of the front shift arc protrusion 12 and the bottom center point a of the neutral notch 11 is represented by r2, and the angle between the bottom center point a of the shift shaft 6 is represented by α) (the central angle between the starting point b of the front shift arc protrusion 12 and the bottom center point a of the neutral notch 11 is the central point), the invention should allow r2-r1-x to be y, where y represents the triggering stroke of the trigger switch 3, so that the lower end of the trigger ram 4 moves from the neutral notch 11 to the shift notch 11 to the starting point a of the arc protrusion 12, and the arc protrusion of the notch 12 is represented by a, and when the arc notch 11 is the arc notch 11, and the arc notch 11 is the arc notch 11, and the arc notch 11, the arc notch is the arc notch, and the arc notch, the arc notch is the arc notch, the arc notch is the arc notch, the arc notch is the arc notch, the arc notch.
As an optimized scheme, in the embodiment, the triggering ejector rod 4 is in sliding fit with the peripheral wall of the guide hole on the fixed seat 2, so that the ventilation groove 41 is axially formed in the peripheral wall of the triggering ejector rod 4, and the action sensitivity and the precision of the advanced gas cut-off device are improved on the basis of enhancing the stability of the triggering ejector rod 4 in axial movement. The lower end of the trigger ejector rod 4 adopts a spherical head to enhance the smoothness and continuity of the movement of the trigger ejector rod, and the upper end of the trigger ejector rod 4 adopts a flat head to ensure the reliability of pressing the contact pin 31. Simultaneously, this embodiment has improved the convenience of dismouting through letting trigger switch 3 adorn soon in the screw hole that fixing base 2 set up at the guiding hole upside, and has made trigger switch 3 set up spacing octagon head 32 in the upside position of fixing base 2, has set up roll adjustment gasket 33 between spacing octagon head 32 and fixing base 2, through selecting for use the adjustable contact pilotage 31 of roll adjustment gasket 33 of different thickness and the interval between the trigger ejector pin 4, has improved the application scope of device of cutting off the gas in advance. In addition, the groove bottom of the neutral position groove 11 is formed by adopting a flat bottom, so that the structure and the preparation process are simplified.
It should be noted that the convex surfaces of the front engaging arc-shaped projection 12 and the rear engaging arc-shaped projection 13 in the present invention are cylindrical surfaces having the shift shaft as the axis. The above description mainly describes the front engaging arc-shaped protrusion 12 and the control process of the timing of the power assistance ending when the forward engaging is performed, and the rear engaging arc-shaped protrusion 13 is arranged in a symmetrical structure with the front engaging arc-shaped protrusion 12, and the backward engaging process is completely the same as the forward engaging process.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.
Claims (10)
1. The advanced gas cut-off device for the gear shifting power-assisted system is characterized by comprising a gear shifting trigger block (1), a fixed seat (2), a trigger switch (3), a trigger ejector rod (4) and an electromagnetic control valve (5), wherein the gear shifting trigger block (1) is fixed on a gear shifting shaft of a gearbox, a neutral gear groove (11) with the width of a notch larger than the width of the bottom of a gear is formed in the top of the gear shifting trigger block (1), and a front gear engaging arc-shaped bulge (12) and a rear gear engaging arc-shaped bulge (13) are correspondingly arranged on two sides of the neutral gear groove (11); the fixed seat (2) is fixed on the upper side of the gear shifting trigger block (1); the trigger switch (3) is a normally-open switch, and the trigger switch (3) is fixed on the fixed seat (2) and leads a contact pin (31) of the trigger switch to face downwards; the trigger ejector rod (4) is arranged in a guide hole formed in the fixed seat (2) on the lower side of the trigger switch (3), the upper end of the trigger ejector rod (4) is located on the lower side of a contact pin (31) of the trigger switch (3), and the lower end of the trigger ejector rod (4) is located in a neutral position groove (11) of the gear shifting trigger block (1); the electromagnetic control valve (5) is a normally open two-position three-way electromagnetic valve and is connected with the trigger switch (3) in series between the positive electrode and the negative electrode of a vehicle power supply, an air inlet P of the electromagnetic control valve (5) is connected with an air source, an air outlet A of the electromagnetic control valve (5) is connected with a gear shifting assisting system, and an air outlet T of the electromagnetic control valve (5) is communicated with the atmosphere.
2. The early air-break device for a shift assist system according to claim 1, wherein the front shift arch (12) and the rear shift arch (13) are symmetrical and are smoothly transitionally connected with two side walls of the neutral groove (11).
3. The early air-break device for the shift assist system as claimed in claim 2, wherein the distance between the lower end of the contact pin (31) of the trigger switch (3) and the upper end of the trigger push rod (4) is x, the connecting line from the center point of the groove bottom of the neutral groove (11) to the axis of the shift shaft is m1, the length of m1 is r1, the connecting line from the starting point of the front gear arc-shaped protrusion (12) to the axis of the shift shaft is m2, the length of m2 is r2, the included angle between m2 and m1 is α, r2-r 1-x-y represents the trigger stroke of the trigger switch (3), α -theta-delta α, delta α -1-352 deg, and theta represents the rotation angle of the shift shaft corresponding to the synchronous stroke of the synchronizer.
4. The early air-break device for a shift assist system as set forth in claim 3, wherein a line connecting the end point of the front shift arc protrusion (12) to the axis of the shift shaft is m3, and the angle between m2 and m1 is β ≧ which indicates the rotation angle of the shift shaft corresponding to the shift stroke.
5. The early gas cutoff device for a shift assist system as set forth in claim 4 wherein said α is 12 ° to 15 ° and said β is 20 ° to 25 °.
6. The early air-break device for the shift assist system according to any one of claims 1 to 5, wherein the trigger push rod (4) is in sliding fit with the peripheral wall of the guide hole on the fixed seat (2), and the peripheral wall of the trigger push rod (4) is provided with an air vent groove (41) along the axial direction.
7. The early air-break device for the shift assist system according to any one of claims 1 to 5, wherein the lower end of the trigger push rod (4) is a spherical head, and the upper end of the trigger push rod (4) is a flat head.
8. The early air-break device for a shift assist system according to any one of claims 1 to 5, wherein the groove bottom of the neutral recess (11) is a flat bottom, and the convex surface of the front engaging arc-shaped protrusion (12) is a cylindrical surface with the shift shaft as the axis.
9. An early blow-off device for a shift assist system according to any one of claims 1 to 5, characterized in that the trigger switch (3) is screwed into a threaded hole provided in the holder (2) at an upper side of the guide hole.
10. The early air-break device for a shift assist system according to claim 9, wherein the trigger switch (3) is provided with a limit octagon head (32) at an upper side position of the fixed seat (2), and a distance adjusting gasket (33) is arranged between the limit octagon head (32) and the fixed seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910307015.5A CN110094501B (en) | 2019-04-17 | 2019-04-17 | A device of cutting off gas in advance for helping hand system of shifting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910307015.5A CN110094501B (en) | 2019-04-17 | 2019-04-17 | A device of cutting off gas in advance for helping hand system of shifting |
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| CN110094501A CN110094501A (en) | 2019-08-06 |
| CN110094501B true CN110094501B (en) | 2020-08-04 |
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| CN101769374A (en) * | 2010-02-11 | 2010-07-07 | 綦江齿轮传动有限公司 | Gear shift assistor of vehicle |
| WO2014068724A1 (en) * | 2012-10-31 | 2014-05-08 | トヨタ自動車株式会社 | Vehicle travel control device |
| CN103939594A (en) * | 2014-03-14 | 2014-07-23 | 陕西法士特齿轮有限责任公司 | Double-bar control mechanism with gear shifting booster transmission |
| CN204692558U (en) * | 2015-06-05 | 2015-10-07 | 王建军 | A kind of put into gear power-assisted and gear locking device based on rod-type operating handle |
| CN205605803U (en) * | 2016-03-31 | 2016-09-28 | 陕西法士特齿轮有限责任公司 | Pneumatic type stopper mechanism |
| CN106122462A (en) * | 2016-08-30 | 2016-11-16 | 北汽福田汽车股份有限公司 | A kind of automobile and gear box operating device thereof |
| CN206874802U (en) * | 2017-06-21 | 2018-01-12 | 东风汽车股份有限公司 | Variable speed control mechanism with neutral gear positioning and gear shifting assisting functions |
| CN109185452A (en) * | 2018-09-29 | 2019-01-11 | 陕西法士特汽车传动集团有限责任公司 | It is a kind of for protecting the steerable system and operating method of main auxiliary box synchronizer |
| CN109372980A (en) * | 2018-12-04 | 2019-02-22 | 西安法士特汽车传动有限公司 | A kind of integrated form manual transmission manipulation assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110094501A (en) | 2019-08-06 |
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