CN113074195B - Gas circuit structure of clutch actuating mechanism and gearshift and speed changer - Google Patents
Gas circuit structure of clutch actuating mechanism and gearshift and speed changer Download PDFInfo
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- CN113074195B CN113074195B CN202110330505.4A CN202110330505A CN113074195B CN 113074195 B CN113074195 B CN 113074195B CN 202110330505 A CN202110330505 A CN 202110330505A CN 113074195 B CN113074195 B CN 113074195B
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/14—Fluid pressure control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
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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
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
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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
- F16H61/0021—Generation or control of line pressure
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
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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
- F16H2061/0018—Transmission control for optimising exhaust emissions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Gear-Shifting Mechanisms (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a clutch actuating mechanism, an air path structure of the shifting mechanism and a transmission, wherein the structure is provided with a double-path structure in the shifting mechanism and the clutch actuating mechanism, the service life of the clutch actuating mechanism can be greatly prolonged by using the double-air-path clutch actuating mechanism, and compared with a passive defense mode of the traditional single-air-path clutch actuating mechanism, the service life and the reliability of the double-air-path clutch actuating mechanism are obviously better than those of the prior art. Waste gas in the gear shifting mechanism is led to the front end of the clutch actuating mechanism and is discharged to the actuating mechanism shell, exhaust noise can be reduced, compared with the mode that waste gas is directly discharged to the outside of the gear shifting mechanism in the prior art, high-frequency noise can be obviously reduced, the NVH level of the whole automobile is improved, and the risk of blocking of the vent hole is greatly reduced.
Description
Technical Field
The invention relates to the technical field of AMT transmission protection, in particular to a gas circuit structure of a clutch actuating mechanism and a gear shifting mechanism and a transmission.
Background
The clutch actuating mechanism is used as a core component of the AMT and plays a role in lifting weight in the processes of starting of the whole vehicle and shifting of the transmission. With the continuous development of the AMT technology, the integrated design of the AMT transmission ensures that the external wire harness and the components are few and the reliability is high. The actuating mechanism of the AMT transmission is mostly composed of two parts, namely a concentric clutch actuating mechanism and a gear shifting mechanism, on the heavy truck at present, the two are connected through a wire harness and a gas circuit, and the gas circuit arranged inside the shell is more reliable and durable, so the gas circuit is cast inside the shell usually.
At present, a clutch actuating mechanism is connected with a gear shifting mechanism in a single air path mode, namely an air inlet and exhaust air path, and the clutch actuating mechanism is arranged in a clutch shell, a large amount of dust falling off from a clutch friction plate can exist in the clutch shell in the using process of a commercial vehicle, the dust can be attached to the inner wall of a cylinder of the clutch actuating mechanism, the sealing of the cylinder of the clutch actuating mechanism and an electromagnetic valve in the gear shifting mechanism are further damaged, but a release bearing is arranged on a piston of the clutch actuating mechanism, the release bearing can be in contact with a clutch release finger and rotates, and therefore the upper cavity of the clutch actuating mechanism cannot be completely isolated from an external cavity through a dust cover.
At present, to solve the above problems, one way is to add a dustproof rubber ring between the piston wall and the cylinder inner wall to block and scrape off the dust attached to the cylinder inner wall during the upward movement of the piston, and the other way is to arrange a dustproof check ring on the outer side of the cylinder inner wall to form a small cavity between the piston outer wall and the cylinder inner wall, and when the piston moves up and down, the dustproof check ring blocks the dust from being sucked into the cavity. For one mode, firstly, the dust removal rate is poor, and secondly, as the temperature of the clutch shell is very high, the rubber ring can be gradually aged, so that the dust removal capacity is continuously reduced along with the time; for another mode, the volume of the cavity can change the motion of the piston continuously, and the method is a passive mode and is not high in dust removal rate.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a gas circuit structure of a clutch actuating mechanism and a gear shifting mechanism and a transmission, and aims to solve the problem that a dust removing device in the clutch actuating mechanism in the prior art is poor in dust removing effect.
The invention is realized by the following technical scheme:
a gas circuit structure of a clutch actuating mechanism and a gear shifting mechanism comprises a clutch electromagnetic valve and an actuating mechanism shell; the clutch electromagnetic valve is arranged in the gear shifting mechanism, a coaxial shell inner ring is arranged in the shell of the actuating mechanism, and a piston is connected to the outer part of the shell inner ring in a sliding manner; an actuating mechanism waste gas circuit is arranged on the inner side wall of the actuating mechanism shell;
an outer shielding cover is arranged between the upper end face of the piston and the inner side wall of the actuating mechanism shell, and an inner cavity is formed between the actuating mechanism shell and the piston;
the inner part of the outer shielding cover is communicated with the inner cavity of the gear shifting mechanism through a shell waste gas path, and the inner cavity is communicated with the clutch electromagnetic valve through an air inlet and exhaust path;
and an air filter is arranged on the outer side wall of the actuating mechanism shell, and the air filter is communicated with the inside of the outer shielding cover.
The invention is further improved in that:
preferably, an inner side sealing ring is arranged between the piston and the inner ring of the shell.
Preferably, the inner side sealing ring consists of a Y-shaped sealing ring, a dustproof ring and a piston retainer.
Preferably, an outer sealing ring is arranged between the piston and the inner side wall of the actuating mechanism shell.
Preferably, the outer sealing ring is composed of a plurality of Y-shaped sealing rings.
Preferably, an inner side shielding cover is arranged between the upper end face of the piston and the inner ring of the shell.
Preferably, the upper end of the inner shielding case is fixedly connected with the outer side wall of the inner ring of the shell, the lower end of the inner shielding case is fixedly connected with the upper end face of the piston, and the inner part of the inner shielding case is a front-end inner cavity;
the upper end of the outer shielding cover is fixedly connected with the inner side wall of the actuating mechanism shell, the lower end of the outer side wall is fixedly connected with the upper end face of the piston, the inner part of the outer shielding cover is a front end outer side cavity, and the front end outer side cavity is communicated with the upper end of an actuating mechanism waste gas circuit.
Preferably, the front end inner side cavity and the front end outer side cavity are communicated through a U-shaped channel, and the U-shaped channel is formed in the piston.
Preferably, the inner shield and the outer shield are both made of flexible materials.
A transmission comprises the air path structure.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a clutch actuating mechanism and an air path structure of the same, wherein a double-path structure is arranged in the gear shifting mechanism and the clutch actuating mechanism, the service life of the clutch actuating mechanism can be greatly prolonged by using the double-air-path clutch actuating mechanism, and compared with a passive defense mode of the traditional single-air-path clutch actuating mechanism, the service life and the reliability of the double-air-path clutch actuating mechanism are obviously better than those of the prior art. Waste gas in the gear shifting mechanism is led to the front end of the clutch executing mechanism to be discharged to the clutch shell, so that exhaust noise can be reduced, compared with the mode that the waste gas is directly discharged to the outside of the gear shifting mechanism in the prior art, high-frequency noise can be obviously reduced, the NVH level of the whole automobile is improved, and the risk of blocking an air vent is greatly reduced. Compared with the scheme that waste gas exhausted by the electromagnetic valve of the clutch is led to the front end of the clutch actuating mechanism, the gas circuit connection is reduced on the gear shifting mechanism, and one exhaust gas circuit is reduced. By using the gas circuit connection mode of the clutch actuating mechanism and the gear shifting mechanism, the arrangement difficulty of the double-gas circuit clutch actuating mechanism on the AMT can be simplified. The shielding cover above the clutch actuating mechanism is matched with the air filter and the waste gas circuit, so that an air cavity full of clean air is formed above the clutch actuating mechanism, and dust, water vapor and the like are prevented from entering a working cylinder of the clutch actuating mechanism. The exhaust gas in the actuating mechanism is gathered and then led to the cavity on the outer side of the front end of the clutch actuating mechanism, so that the number of gas circuits is reduced. An air cavity full of clean air can be formed above the piston of the clutch actuating mechanism by using the double air channels, so that the service lives of corresponding electromagnetic valves in the clutch actuating mechanism and the gear shifting mechanism are prolonged.
The invention also discloses a transmission which comprises a clutch executing mechanism and a gear shifting mechanism, wherein the clutch executing mechanism and the gear shifting mechanism are communicated through a double-path gas path, so that the arrangement difficulty of the double-gas path clutch executing mechanism on the AMT transmission is simplified.
Drawings
Fig. 1 is an overall outline schematic diagram of the double-gas-path connecting structure of the invention.
In the figure: 1-executing mechanism waste gas circuit; 2-front end outer cavity; 3-front end inner side cavity; 4-a piston; 5-an air filter; 6-outer side sealing ring; 7-inner side sealing ring; 8-an outer shield; 9-inner side shielding case; 10-clutch solenoid valve; 11-a gear shift mechanism; 12-air inlet and outlet gas path; 13-shell exhaust gas circuit; 14-a housing inner ring; 15-an actuator housing; 16-an internal cavity; 17-clutch actuator.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention provides a double-air-passage connecting structure of a clutch actuating mechanism and a gear shifting mechanism, wherein the double-air-passage connecting structure is arranged in a clutch shell, the gear shifting mechanism 11 is arranged on the upper part of the outer side of the clutch shell, and the clutch actuating mechanism 17 is arranged in the clutch shell. An air path is arranged between the clutch executing mechanism 17 and the gear shifting mechanism 11. Referring to fig. 1, the clutch solenoid valve 10 is located inside the gear shift mechanism 1, the clutch actuator 17 includes a housing inner ring 14, an actuator housing 15 and a piston 4, the housing inner ring 14 is disposed in the actuator housing 1, the bottom of the housing inner ring 14 and the bottom of the actuator housing 15 are integrally connected, and two ends of the air inlet/outlet path 12 are respectively communicated with the inside of the actuator housing 15 and the inside of the gear shift mechanism 11; an air inlet and exhaust air path 12 and a housing waste gas path 13 are communicated with the gear shifting mechanism 11 and the actuating mechanism housing 15, one end of the air inlet and exhaust air path 12 is communicated to the inside of the clutch electromagnetic valve 10 through an internal air path in the gear shifting mechanism 11, and the other end of the air inlet and exhaust air path 12 is communicated to the actuating mechanism housing 15. The casing exhaust gas circuit 13 connects the actuator exhaust gas circuit 1 with the internal cavity of the shift mechanism 11.
The actuating mechanism shell 15 is provided with an exhaust gas path 1, an outer side shielding cover 8 and an inner side shielding cover 9 of the piston 4, an outer side sealing ring 6, an inner side sealing ring 7, an air filter 5 and a shell inner ring 14.
More specifically, the casing inner ring 14 is arranged along the axial direction of the actuator casing 15, the casing inner ring 14 and the actuator casing 15 are coaxial, the inner side wall of the actuator casing 15 is provided with an actuator waste gas path 1 along the axial direction, the bottom end of the actuator waste gas path 1 is communicated with the casing waste gas path 13, and the upper end of the actuator waste gas path 1 is communicated with the front end outer cavity 2. The piston 4 is connected with the outer side of the shell inner ring 14 in a sliding mode, and the piston 4 is arranged around the shell inner ring 14. An inner side sealing ring 7 is arranged between the inner side wall of the piston 4 and the shell inner ring 14, an outer side sealing ring 6 is arranged between the outer side wall of the piston 4 and the actuating mechanism shell 15, and because the actuating mechanism waste gas circuit 1 in the vertical direction is arranged on the outer wall of the actuating mechanism shell 15, a part of the outer side sealing ring 6 is in contact with the outer side wall of the actuating mechanism waste gas circuit 1. Through the structure of the outer sealing ring 6, the inner sealing ring 7, the shell inner ring 14 and the actuating mechanism shell 15, an annular inner cavity 16 is formed around the shell inner ring 14, and the bottom end of the inner cavity 16 is communicated with the air inlet and exhaust air passage 12.
More specifically, two shielding cases, namely an inner shielding case 9 and an outer shielding case 8, are arranged at the upper part of the piston 4, the inner shielding case 9 is an annular case, the upper end of the inner shielding case is fixedly connected with the outer side wall of the shell inner ring 14, and the lower end of the inner shielding case is fixedly connected with the upper end surface of the piston 4; the outer shielding cover 8 is also an annular cover, the upper end face of which is fixedly connected with the inner side wall of the actuating mechanism shell 15, and the lower end face of which is fixedly connected with the upper end face of the piston 4. The two shielding cases are made of flexible materials such as rubber and plastics.
Further, an approximately closed cavity, namely the front end outer side cavity 2, is formed by the above-mentioned cylinder outer working surface on which the outer side shield 8, the piston 4 and the housing inner ring 14 are arranged. The inner side shield 9, the piston 4 and the cylinder working surface of the shell inner ring 14 form a closed cavity, namely the front end inner side cavity 3. The outer seal ring 6 is typically composed of a plurality of Y-shaped seal rings, and the inner seal ring 7 is typically composed of a plurality of Y-shaped seal rings, a dust seal ring, and a piston holder. The front end outer side cavity 2 is communicated with the outside through an air filter 5. The sealing ring 6 consists of two Y-shaped sealing rings, the lip of the Y-shaped sealing ring on the upper side is upward and used for blocking and removing dust in air and attached to the side wall, and the lip of the Y-shaped sealing ring on the lower side is downward and used for sealing high-pressure air in the air cylinder. The inner side sealing ring 7 is composed of a dustproof ring, a retainer, a Y-shaped sealing ring and a retainer from top to bottom, the dustproof ring is used for blocking and removing dust in air and attached to the side wall, and the 2 retainers are composed of wear-resistant materials and used for centering the piston. The Y-shaped sealing ring is used for sealing the compressed air in the air cylinder.
An air filter 5 is arranged on the outer side wall of the actuating mechanism shell 15, and the air filter 5 is communicated with the front end outer side cavity 2.
When a radial U-shaped channel is cast on the piston 4, the front end outer side cavity 2 and the front end inner side cavity 3 can be communicated, so that the cleanness of air in the front end inner side cavity 3 is ensured in the up-and-down movement process of the piston 4, and the service life of the inner side shielding cover 9 is prolonged.
Further, the inner shield case 9 may be omitted, and since the area of the housing inner ring 14 is small, dust that may adhere is small, and it may be omitted for the sake of simplifying the structural design.
The working mode of the invention is as follows:
the whole vehicle controls the air entering the air inlet and outlet path 12 by controlling the opening and closing of the air inlet valve of the clutch electromagnetic valve 10, and the air in the air inlet and outlet path 12 enters the inner cavity 16, thereby controlling the upward moving speed of the piston 4. When the piston 4 moves upwards, the space of the front end outer side cavity 2 and the front end inner side cavity 3 is reduced, the front end outer side cavity 2 exhausts air through the air filter 5, the front end inner side cavity 3 is positioned at the inner side of the cylinder, the cavity space change is small, and the change of the cavity space can be balanced by the flexible deformation of the inner side shielding cover 9.
When the exhaust valve of the clutch solenoid valve 10 is opened, the gas in the actuating mechanism shell 15 returns to the clutch solenoid valve 10 through the gas inlet and outlet path 12, and is discharged into the cavity of the gear shift mechanism 11 through the clutch solenoid valve 10, after the waste gas and the waste gas of other cylinders are converged in the cavity of the gear shift mechanism 11, the waste gas is led to the front end outer side cavity 2 through the shell waste gas path 13, because the inner cavity 16 at the lower side of the piston 4 is filled with compressed air, and the front end outer side cavity 2 at the upper side is in a normal pressure state because of being communicated with the air filter 5, the volume of the waste gas led to the front end outer side cavity 2 is increased, so that the air filter 5 is in an exhaust state when the piston 4 moves randomly, and further external dust and the like are prevented from diffusing into the front end outer side cavity 2. Because the air of the air source is filtered before entering the gear shifting mechanism 14, all the waste gas contains no moisture and impurities, the front end outer side cavity 2 formed above the piston 4 is filled with clean air, and the front end inner side cavity 3 is a closed space which is not communicated with the outside, so the air in the cavity is also clean air. Through this design can guarantee that impurity such as dust, moisture outside casing inner circle 14 can not get into the cylinder inside of casing inner circle 14.
Because other cylinders can be led to the front end outer side cavity 2 when exhausting, the waste gas can cause interference to the piston 4 in work, an air filter 5 can be arranged on the outer side of the central position of the length of the shell waste gas path 13 to discharge part of the waste gas and reduce the pressure of the waste gas, and only positive pressure slightly larger than the external atmospheric pressure exists in the front end outer side cavity 2 by adjusting the aperture of the gas path, so that the influence of the waste gas exhausted by other cylinders in the gear shifting mechanism 11 on the piston 4 is ensured to be negligible.
Through the convergent waste gas channel, waste gas generated by other cylinders and the internal cavity 16 is merged in the cavity of the gear shifting mechanism 11 and then is led to the front end outer side cavity 2 through the shell waste gas channel 13, so that the gas channel layout is greatly simplified. In the existing traditional gas path scheme, waste gas generated by the internal cavity 16 needs to be led from the clutch solenoid valve 10 to the front end outer side cavity 2, and the waste gas requirement of the internal cavity 16 and the exhaust requirement of the actuating mechanism are met through the convergent waste gas channel in the scheme. On the other hand, the interface between the housing exhaust gas path 13 and the shift mechanism 11 can be arranged in any area of the shift mechanism 11, and in the conventional gas path scheme, the exhaust gas generated by the internal cavity 16 needs to be led to the front end of the shift mechanism 11 from the clutch solenoid valve 10, so that two parallel gas paths exist in the shift mechanism 11, the risk of blow-by is increased, and the design difficulty of the shift mechanism 11 is improved.
Claims (10)
1. The gas circuit structure of the clutch actuating mechanism and the gear shifting mechanism is characterized by comprising a clutch electromagnetic valve (10) and an actuating mechanism shell (15); the clutch electromagnetic valve (10) is arranged in the gear shifting mechanism (11), a coaxial shell inner ring (14) is arranged in an actuating mechanism shell (15), and a piston (4) is connected to the outer part of the shell inner ring (14) in a sliding manner; an actuating mechanism waste gas path (1) is arranged on the inner side wall of the actuating mechanism shell (15);
an outer shielding cover (8) is arranged between the upper end face of the piston (4) and the inner side wall of the actuating mechanism shell (15), and an inner cavity (16) is formed between the actuating mechanism shell (15) and the piston (4);
the interior of the outer shielding cover (8) is communicated with the interior cavity of the gear shifting mechanism (11) through a shell waste gas path (13), and the interior cavity (16) is communicated with the clutch electromagnetic valve (10) through an air inlet and outlet path (12);
an air filter (5) is arranged on the outer side wall of the actuating mechanism shell (15), and the air filter (5) is communicated with the inside of the outer shielding cover (8).
2. An air passage structure of a clutch actuating mechanism and a gear shifting mechanism according to claim 1, characterized in that an inner side sealing ring (7) is arranged between the piston (4) and the housing inner ring (14).
3. The air passage structure of the clutch actuating mechanism and the gear shifting mechanism according to claim 2, wherein the inner sealing ring (7) consists of a Y-shaped sealing ring, a dust ring and a piston retainer.
4. An air passage structure of a clutch actuator and a gear shift mechanism according to claim 3, characterized in that an outer sealing ring (6) is arranged between the piston (4) and the inner side wall of the actuator housing (15).
5. The pneumatic structure of a clutch actuator and a shift mechanism according to claim 4, wherein the outer seal ring (6) is composed of a plurality of Y-shaped seal rings.
6. The air circuit structure of a clutch actuating mechanism and a gear shifting mechanism according to any one of claims 1-5, characterized in that an inner shielding cover (9) is arranged between the upper end surface of the piston (4) and the inner ring (14) of the housing.
7. The gas circuit structure of the clutch actuating mechanism and the gear shifting mechanism according to claim 6, wherein the upper end of the inner shielding case (9) is fixedly connected with the outer side wall of the inner ring (14) of the housing, the lower end of the inner shielding case (9) is fixedly connected with the upper end face of the piston (4), and the inner part of the inner shielding case (9) is a front end inner cavity (3);
the upper end of outside shield cover (8) and the inside wall fixed connection of actuating mechanism casing (15), the lower extreme of outside shield cover (8) and the up end fixed connection of piston (4), the inside of outside shield cover (8) is front end outside cavity (2), the upper end intercommunication of front end outside cavity (2) and actuating mechanism exhaust gas circuit (1).
8. The air passage structure of the clutch actuating mechanism and the gear shifting mechanism according to claim 7, wherein the front end inner cavity (3) and the front end outer cavity (2) are communicated through a U-shaped channel, and the U-shaped channel is formed in the piston (4).
9. The air passage structure of the clutch actuating mechanism and the gear shifting mechanism as claimed in claim 6, characterized in that the inner shielding case (9) and the outer shielding case (8) are both made of flexible materials.
10. A transmission characterized by comprising the air path structure of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110330505.4A CN113074195B (en) | 2021-03-25 | 2021-03-25 | Gas circuit structure of clutch actuating mechanism and gearshift and speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110330505.4A CN113074195B (en) | 2021-03-25 | 2021-03-25 | Gas circuit structure of clutch actuating mechanism and gearshift and speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113074195A CN113074195A (en) | 2021-07-06 |
| CN113074195B true CN113074195B (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110330505.4A Active CN113074195B (en) | 2021-03-25 | 2021-03-25 | Gas circuit structure of clutch actuating mechanism and gearshift and speed changer |
Country Status (1)
| Country | Link |
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| CN (1) | CN113074195B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB345995A (en) * | 1929-12-30 | 1931-03-30 | Johann Albert Ludwig Ruwoldt | Improved means for cleaning and treating the air supply to internal combustion engines |
| CN103671618A (en) * | 2012-09-21 | 2014-03-26 | 贵州红林机械有限公司 | Clutch actuator assembly for vehicle automatic transmission |
| CN209398835U (en) * | 2018-12-12 | 2019-09-17 | 西安法士特汽车传动有限公司 | A kind of major-minor case speed changer interlocking gas circuit control structure |
Family Cites Families (7)
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| GB643796A (en) * | 1948-02-21 | 1950-09-27 | William Henry Graham Thompson | Improvements in and relating to exhaust silencers for internal combustion engines |
| JP3985053B2 (en) * | 2002-07-15 | 2007-10-03 | マツダ株式会社 | Engine exhaust particle processing equipment |
| CN100334336C (en) * | 2004-06-17 | 2007-08-29 | 马登科 | Double-cylinder circulating internal combustion engine and its method for mainly realizing thermal insulation and homogeneous lean burn |
| JP2009121631A (en) * | 2007-11-16 | 2009-06-04 | Toyota Motor Corp | Piston device of automatic transmission |
| CN205226142U (en) * | 2015-12-15 | 2016-05-11 | 武汉理工通宇新源动力有限公司 | Automatic clutch actuating mechanism |
| CN109667927B (en) * | 2018-12-12 | 2024-02-13 | 西安法士特汽车传动有限公司 | Main and auxiliary gearbox interlocking gas circuit control structure and control method |
| CN112096858B (en) * | 2020-09-18 | 2022-03-29 | 陕西法士特齿轮有限责任公司 | Integrated automatically controlled mechanical type automatic gearbox |
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| GB345995A (en) * | 1929-12-30 | 1931-03-30 | Johann Albert Ludwig Ruwoldt | Improved means for cleaning and treating the air supply to internal combustion engines |
| CN103671618A (en) * | 2012-09-21 | 2014-03-26 | 贵州红林机械有限公司 | Clutch actuator assembly for vehicle automatic transmission |
| CN209398835U (en) * | 2018-12-12 | 2019-09-17 | 西安法士特汽车传动有限公司 | A kind of major-minor case speed changer interlocking gas circuit control structure |
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