CN113357363A - Cylinder piston sequential gear mechanism - Google Patents
Cylinder piston sequential gear mechanism Download PDFInfo
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- CN113357363A CN113357363A CN202110587557.XA CN202110587557A CN113357363A CN 113357363 A CN113357363 A CN 113357363A CN 202110587557 A CN202110587557 A CN 202110587557A CN 113357363 A CN113357363 A CN 113357363A
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
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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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a cylinder piston sequential gear mechanism which comprises a cylinder and a cylinder mounting seat, wherein a piston is arranged in the cylinder, and the cylinder is divided into an exhaust cavity and an air inlet cavity by the piston; the piston is provided with a cylinder shaft, one end of the cylinder shaft is fixedly connected with the piston, the other end of the cylinder shaft penetrates through the cylinder mounting seat to be fixedly connected with the gear shifting fork, and the gear shifting fork is in transmission connection with the gear shifting pin; the cylinder shaft is provided with a damping seat for axially limiting the cylinder shaft; the piston can drive the cylinder shaft to transversely move under the action of pressure in the cylinder so as to drive the gear shifting fork and the gear shifting pin to move to realize gear shifting of the gearbox, and the cylinder is cut off after the cylinder shaft moves in place, so that the cylinder shaft is limited by the damping seat. The cylinder piston sequential gear mechanism can meet the driving habit of a driver for operating the whole vehicle to shift gear when the gearbox is shifted, ensures that the cylinder piston is not stressed after being shifted in place, and improves the reliability of the cylinder piston.
Description
Technical Field
The invention belongs to the technical field of control reversing of an automobile gearbox, and particularly relates to a cylinder piston sequential gear mechanism.
Background
In order to adapt to the driving habit of the whole vehicle operation and the gear shifting, when a gearbox operates the gear shifting and reversing, a piston in a pushing cylinder drives a cylinder shaft to move, the cylinder shaft shifts a gear shifting fork, a fulcrum bolt supports the gear shifting fork, the gear shifting fork rotates around the fulcrum bolt under the shifting of the cylinder shaft, the reverse motion of the other end of the gear shifting fork is realized, and the driving habit of the whole vehicle operation and the gear shifting of the driver can be met when the gearbox is shifted. The installation position of the fulcrum bolt is required to be provided on the gearbox body, the fulcrum bolt is added, the assembly difficulty of the gearbox is increased, and the position precision of the shifting fork is influenced after the assembly.
As shown in fig. 1 to 3, in the prior art, a cylinder 1 and a cylinder fixing seat 26 of a cylinder piston sequential shift mechanism are fixedly connected by a bolt 19, an air inlet cavity 16 is filled with air, an air outlet cavity 17 is filled with air, the piston 3 is pushed to move to the right, the piston is connected with a cylinder shaft 6 by a fastener 14, the cylinder shaft 6 pushes a shift fork 7 to rotate around a fulcrum bolt 18, and a shift pin 8 (the shift pin 8 can rotate around a matching hole on the shift fork 7) is driven to move to the left. The intake air of the intake chamber 16 is introduced through the first inlet 21 → the second inlet 23 → the third inlet 24 → the intake chamber 16 of the air guide plate 20. The exhaust of the gas outlet chamber 17 is performed through the second outlet 25 → the first outlet 22 of the cylinder holder 26. The gas outlet cavity 17 is used for air inlet, the gas inlet cavity 16 is used for air outlet, the gas path transmission direction is opposite to the gas inlet direction of the gas inlet cavity 16, and the gas outlet cavity 17 is used for air outlet. In the prior art, the air cylinder is normally ventilated, so that the gear shifting pin 8 is not moved after the gear is put into place, and the gear is correct, and the defects that the air cylinder piston 3 is normally stressed, the service life is short, and the whole public praise is influenced are overcome.
In the prior art, chinese patent publication No. CN 106122462 a discloses a transmission control device, which includes a control member and a lock guide member, a neutral groove and a shift protrusion are disposed on the top of the lock guide member, and a rolling member is disposed on the bottom of the control member and can roll from the neutral groove to pass over the shift protrusion and to roll into the neutral groove to pass over the shift protrusion. The rolling component is a rolling shaft; the operating component comprises an operating rod, a spring support and an elastic component positioned between the operating rod and the spring support, the rolling component is installed on the spring support, and when the rolling component is positioned in the neutral groove, the elastic component is in a compressed state. The spring support is cylindrical, a hollow part for inserting the spring support and the elastic component is arranged at the bottom end of the operating rod, and bosses for limiting the elastic component are arranged in the hollow part and on the outer periphery of the spring support. The operating component is connected with a stop lever, and the middle part of the locking guide component is provided with an arc-shaped limiting groove for the stop lever to slide. The both ends of arc spacing groove all are equipped with and are used for reducing the pin with the buffering part of degree of collision between the locking guide part, and the buffering part with can dismantle the connection between the arc spacing groove. The locking device further comprises a base used for supporting the locking guide component, and the locking guide component is detachably connected with the base. The base is detachably provided with a supporting component, one end of the locking guide component is rotatably connected with the base in the gear selecting direction, and the other end of the locking guide component is rotatably connected with the supporting component in the gear selecting direction. The locking guide component is provided with a gear selection middle rotating shaft in a penetrating manner along the gear selection direction, and the gear selection middle rotating shaft is connected with the control component; the bottom end of the operating component is fixedly provided with a first connecting plate and a second connecting plate which are respectively positioned at two sides of the gear selecting direction of the locking guide component, and the gear selecting intermediate rotating shaft is detachably arranged between the first connecting plate and the second connecting plate. According to the gearbox operating device provided by the invention, the rolling component is arranged at the bottom end of the operating component, the friction form between the operating component and the locking guide component is changed from sliding friction in the prior art to rolling friction, the resistance between the rolling component and the locking guide component can be effectively reduced, the abrasion of the assisting surface of the locking guide component is reduced, the service life of the locking guide component is prolonged, the smoothness and the suction feeling of gear shifting are improved, and the gear shifting comfort of a user is ensured.
The Chinese utility model patent with the publication number of CN 202228660U discloses a gearbox operating mechanism, which comprises a shift shaft, a self-locking mechanism, a reverse gear locking mechanism, a gear selecting and shifting head fixed on the shift shaft and an interlocking fork sleeved on the shift shaft, wherein the self-locking mechanism is arranged in a casing of the operating mechanism and comprises a gear self-locking shaft and a self-locking block, the self-locking block is arranged on the shift shaft, and a cavity for limiting the rotation angle of the self-locking block is arranged in the casing; the gear shifting shaft is connected with a gear shifting rocker arm for controlling the gear shifting shaft to rotate and axially move; the other end of the interlocking fork is sleeved on the gear self-locking shaft. The gear shifting shaft is fixed in the shell through a spring seat ring and a centering spring which are arranged at two ends of the reverse gear lock structure, one end of the gear shifting shaft is connected with the reverse gear lock structure, and the other end of the gear shifting shaft extends out of the shell and is connected with a gear shifting rocker arm. The reverse gear locking mechanism comprises a reverse gear locking ring, a reverse gear locking spring and a reverse gear locking pin, the reverse gear locking ring is fixed on the gear shifting shaft, two steps are arranged on the outer circle of the reverse gear locking ring, a slope is arranged between the two steps, the reverse gear locking pin is installed in the shell through the reverse gear locking spring, and the lower end of the reverse gear locking pin is in contact with the outer circle of the reverse gear locking ring. And a centering ring is arranged between the reverse gear locking ring and the reverse gear lock pin, the centering ring is fixed on the shell, and the lower end of the reverse gear lock pin penetrates through the centering ring to be in contact with the reverse gear locking ring. The self-locking mechanism further comprises a gear self-locking spring, the self-locking blocks can axially slide and are circumferentially linked and connected, the self-locking shafts and the gear shifting shaft are arranged in parallel, and one end of each self-locking shaft is tightly pressed on the fan-shaped self-locking block through the gear self-locking spring. The gearbox control mechanism is integrated with a self-locking mechanism, an interlocking mechanism and a reverse gear locking mechanism, can perform mechanical gear selection and gear shifting, and realizes the control of a 6-gear gearbox.
Chinese utility model patent with publication number CN2578617Y discloses a reverse and forward gear device suitable for motor tricycle, which comprises a transmission main shaft installed in a housing through a bearing, a front and a rear bevel gears installed on the transmission main shaft in a movable fit relationship and a driving bevel gear engaged with the front and rear bevel gears and driven by a power input shaft, a clutch sleeve sleeved on a transmission main shaft section between the front and rear bevel gears and sleeved on the transmission main shaft in a spline connection manner, a shift fork groove matched with a shift fork arranged in the middle of the outer circular surface of the clutch sleeve, and spline structures matched with the spline holes of the front and rear bevel gears on two sides of the shift fork groove; the shifting fork matched with the shifting fork groove is arranged on a shifting fork shaft which is arranged above the transmission main shaft in parallel, the shifting fork rod is arranged above the shifting fork through a gear engaging shaft which is vertically connected with the shifting fork rod, and the outer end of the gear engaging shaft is connected with a pedal type gear shifting pedal through a pin shaft.
The prior art can not solve the problems that the cylinder piston is still stressed after being put into gear in place and the gear shifting pin is not moved after the cylinder is put into gear in place after air is cut off, so an innovative cylinder piston sequential gear mechanism needs to be designed.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the cylinder piston sequential gear mechanism which can meet the driving habit of the whole vehicle operation and gear engagement of a driver when a gearbox is in gear engagement, ensures that the cylinder piston is not stressed after gear engagement is in place, and improves the reliability of the cylinder piston.
In order to achieve the purpose, the invention adopts the technical scheme that: a cylinder piston sequential gear mechanism comprises a cylinder and a cylinder mounting seat, wherein a piston is arranged in the cylinder, and the cylinder is divided into an exhaust cavity and an air inlet cavity by the piston; the gear shifting fork is in transmission connection with the gear shifting pin; the cylinder shaft is provided with a damping seat for axially limiting the cylinder shaft; the piston can drive the cylinder shaft to transversely move under the action of pressure in the cylinder so as to drive the gear shifting fork and the gear shifting pin to move to realize gear shifting of the gearbox, and the cylinder is cut off after the cylinder shaft moves in place, so that the cylinder shaft is limited by the damping seat. According to the cylinder piston sequential gear mechanism, a fulcrum bolt is omitted, an air passage is designed on a cylinder, when the same position of a valve body outside the cylinder is ventilated, air pushed into the cylinder can be pushed reversely, the piston in the cylinder is driven to move, the piston drives a cylinder shaft to move, a gear shifting fork is directly fixed on the cylinder shaft, the fulcrum bolt is not required to support, and when the valve body outside the cylinder is ventilated, the gear shifting fork directly moves reversely.
Preferably, the exhaust cavity is arranged on one side of the piston away from the cylinder shaft; the air inlet cavity is arranged on the other side, close to the cylinder shaft, of the piston.
As a preferred embodiment, the air cylinder further comprises an air guide plate fixedly connected with the air cylinder mounting seat, wherein a first air inlet hole and a first air outlet hole are formed in the air guide plate; a second air inlet hole, a second exhaust hole and a third exhaust hole are formed in the air cylinder mounting seat;
the first air inlet hole is communicated with the second air inlet hole, and the second air inlet hole is communicated with the air inlet cavity; the second exhaust hole is communicated with the exhaust cavity, the second exhaust hole is communicated with the third exhaust hole, and the third exhaust hole is communicated with the first exhaust hole. Like this, through carrying out the innovative design to the air flue of cylinder mount pad, first inlet port admits air the back, and convertible one becomes the chamber of admitting air and admits air to can accord with the whole car of driver and control when realizing the gearbox and put into gear the driving habit.
As a preferred embodiment, the third exhaust hole and the second air inlet hole are symmetrically arranged at intervals, and the first air inlet hole and the first exhaust hole are arranged between the second air inlet hole and the third exhaust hole at intervals;
as a preferred embodiment, a first air guide groove and a second air guide groove which are symmetrically arranged are arranged on the cylinder mounting seat, and the first air guide groove is used for communicating a first air inlet hole and a second air inlet hole; and the second air guide groove is used for communicating the third exhaust hole with the first exhaust hole. One end of the first air guide groove is communicated with the first air inlet hole, the other end of the first air guide groove is communicated with the second air inlet hole, when the first air inlet hole is used for air intake, air is pushed through the first air guide groove to enter the second air inlet hole, air communication between the first air inlet hole and the second air inlet hole is achieved, the first air inlet hole is used for air intake, and the second air inlet hole is used for air intake to enter the air intake cavity. One end of the second air guide groove is communicated with the third air exhaust hole, the other end of the second air guide groove is communicated with the first air exhaust hole, and when the third air exhaust hole exhausts, air is pushed through the second air guide groove to enter the first air exhaust hole, so that the third air exhaust hole is communicated with the first air exhaust hole. According to the cylinder piston sequential gear mechanism, the air passage of the cylinder mounting seat is innovatively designed, and the air inlet of the first air inlet hole can be converted into air inlet of the air inlet cavity, so that the driving habit of operating and engaging a gear by a whole vehicle of a driver can be met when the gear box is engaged.
Preferably, the third exhaust hole, the first intake hole, the first exhaust hole and the second intake hole are sequentially located on the same straight line.
Preferably, the damping seat comprises a body with a hollow inner cavity, the inner cavity of the body is provided with a spring and a contact, one end of the contact abuts against the spring, and the other end of the contact extends out of the inner cavity of the body to be suspended.
Preferably, the cylinder shaft is provided with a guide groove matched with the damping seat, and the contact can extend into the guide groove to be in sliding fit with the guide groove.
Preferably, a first limiting hole groove and a second limiting hole groove are formed in the guide groove, and the contact can be embedded into the first limiting hole groove or the second limiting hole groove to limit the contact. Therefore, through the innovative design of the cylinder shaft, the damping seat guides, the guide groove is designed on the cylinder shaft, the contact of the damping seat is lifted in the ventilation movement process of the cylinder piston, the contact of the damping seat is pressed down by the spring after the piston moves in place, and falls into the first limiting hole groove or the second limiting hole groove of the cylinder shaft, the air hole of the cylinder is cut off, the cylinder shaft is guided by the damping seat and is embedded into the first limiting hole groove or the second limiting hole groove of the cylinder shaft, the cylinder shaft cannot rotate or move in series, the gear is correct, the cylinder piston is not stressed after being in place in gear engagement, the reliability of the cylinder piston is improved, and the whole automobile opening stele is improved.
Preferably, one end of the cylinder shaft is fixedly connected with the piston through a fastener, and the other end of the cylinder shaft is fixedly connected with the shift fork through a fastening pin.
Compared with the prior art, the method has the following beneficial effects:
firstly, the cylinder piston sequential gear mechanism of the invention cancels a fulcrum bolt, an air passage is designed on the cylinder, when the same position of the valve body outside the cylinder is ventilated, the air pushed into the cylinder can realize reverse pushing, the piston in the cylinder is driven to move, the piston drives the cylinder shaft to move, the gear shifting fork is directly fixed on the cylinder shaft, the fulcrum bolt is not needed for supporting, and when the valve body outside the cylinder is ventilated, the gear shifting fork directly realizes reverse movement.
Secondly, the cylinder piston sequential gear mechanism is innovatively designed on an air passage of the cylinder mounting seat, and after air enters the first air inlet hole, the first air inlet hole can be converted into air entering of the air inlet cavity, so that the driving habit of a driver for operating the whole vehicle to shift gears can be met when the gearbox is shifted.
Thirdly, the cylinder piston sequential gear mechanism is characterized in that a cylinder shaft is innovatively designed and guided through a damping seat, a guide groove is designed on the cylinder shaft, a contact of the damping seat is lifted in the process of ventilation movement of the cylinder piston, the contact of the damping seat is pressed down by a spring after the piston moves in place, the contact falls into a first limiting hole groove or a second limiting hole groove of the cylinder shaft, the air hole of the cylinder is cut off, the cylinder shaft is guided by the damping seat and is embedded into the first limiting hole groove or the second limiting hole groove of the cylinder shaft, and the cylinder shaft cannot rotate or move in a string mode, so that the right gear is guaranteed, the cylinder piston is guaranteed not to be stressed after being in place in gear engagement, the reliability of the cylinder piston is improved, and the tombstone of the whole automobile is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a prior art cylinder piston downshifting mechanism;
FIG. 2 is a schematic top cross-sectional view of the prior art cylinder piston sequential mechanism shown in FIG. 1;
FIG. 3 is a schematic top view of the cylinder holder shown in FIG. 1;
FIG. 4 is a schematic cross-sectional view of the cylinder piston downshifting mechanism of the present invention;
FIG. 5 is a schematic top cross-sectional view of the piston sequential mechanism of the cylinder shown in FIG. 4;
FIG. 6 is a cross-sectional view of the cylinder piston sequential-stop mechanism of FIG. 5 in a traversing state;
FIG. 7 is a schematic top view of the cylinder mount of FIG. 5;
FIG. 8 is a schematic cross-sectional view taken along line A-A of FIG. 7;
FIG. 9 is a schematic top view of the cylinder shaft of FIG. 5;
FIG. 10 is a schematic cross-sectional view taken along line B-B of FIG. 9;
in the figure: 1-cylinder, 1.1-second exhaust hole, 2-cylinder mounting seat, 2.1-second air inlet hole, 2.2-third exhaust hole, 3-piston, 4-exhaust cavity, 5-air inlet cavity, 6-cylinder shaft, 7-shift fork, 8-shift pin, 9-damping seat, 9.1-body, 9.2-spring, 9.3-contact, 10-air guide plate, 10.1-first air inlet hole, 10.2-first exhaust hole, 11-first air guide groove, 12-second air guide groove, 13-guide groove, 13.1-first limit hole groove, 13.2-second limit hole groove, 14-fastening piece, 15-fastening pin, 16-air inlet cavity, 17-air outlet cavity, 18-fulcrum bolt, 19-air guide bolt, 20-flow plate, 21-a first inlet, 22-a first outlet, 23-a second inlet, 24-a third inlet, 25-a second outlet and 26-a cylinder fixing seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 4, the cylinder piston sequential gear mechanism of the present invention includes a cylinder 1 and a cylinder mounting base 2, wherein a piston 3 is disposed in the cylinder 1, and the cylinder 1 is divided into an exhaust cavity 4 and an intake cavity 5 by the piston 3; the exhaust cavity 4 is arranged on one side of the piston 3 away from the cylinder shaft 6; the inlet chamber 5 is arranged on the other side of the piston 3, which is situated close to the cylinder axis 6. A cylinder shaft 6 is arranged on the piston 3, one end of the cylinder shaft 6 is fixedly connected with the piston 3, the other end of the cylinder shaft 6 penetrates through the air cylinder mounting seat 2 and is fixedly connected with a shift fork 7, and the shift fork 7 is in transmission connection with a shift pin 8; and the cylinder shaft 6 is provided with a damping seat 9 for axially limiting the cylinder shaft. The piston 3 can drive the cylinder shaft 6 to transversely move under the action of pressure in the cylinder so as to drive the gear shifting fork 7 and the gear shifting pin 8 to move to realize gear shifting of the gearbox, and after the cylinder shaft 6 moves in place, air is cut off in the cylinder, and the cylinder shaft 6 is limited through the damping seat 9.
In this embodiment, one end of the cylinder shaft 6 is fixedly connected with the piston 3 through a fastening member 14, and the other end of the cylinder shaft 6 is fixedly connected with the shift fork 7 through a fastening pin 15. The cylinder 1 and the cylinder mounting seat 2 are fixedly connected through a bolt, the air inlet cavity 5 is used for air inlet, the exhaust cavity 4 is used for exhausting air, the piston 3 is pushed to move left, the piston is connected with the cylinder shaft 6 through a fastener 14, the cylinder shaft 6 and the gear shifting fork 7 are fixed into a whole through a fastening pin 15, when the piston 3 moves left, the gear shifting fork 7 is pushed to move left, the gear shifting pin 8 is driven to move left, and therefore the whole vehicle control gear-shifting driving habit of a driver can be met when the gearbox is shifted. The fastening member 14 may be a screw, a bolt, or the like, and the fastening pin 15 may be a cylindrical pin. According to the cylinder piston sequential gear mechanism, a fulcrum bolt is omitted, an air passage is designed on a cylinder, when the same position of a valve body outside the cylinder is ventilated, air pushed into the cylinder can be pushed reversely, the piston in the cylinder is driven to move, the piston drives a cylinder shaft to move, a gear shifting fork is directly fixed on the cylinder shaft, the fulcrum bolt is not required to support, and when the valve body outside the cylinder is ventilated, the gear shifting fork directly moves reversely. In the prior art, a cylinder shaft has no guide and limit, is easy to rotate and separate in the gear engaging process, and is unreliable in operation. The damping seat 9 is combined with the cylinder shaft 6, and the damping seat guides in the motion process of the cylinder shaft; after the cylinder shaft moves in place, the cylinder cuts off gas, the damping seat contact is pressed into the spherical groove of the cylinder shaft, and the gear shifting fork is prevented from rotating around the shaft and moving in a string mode.
As shown in fig. 5 and 6, the air conditioner further comprises an air guide plate 10 fixedly connected with the cylinder mounting seat 2, wherein a first air inlet 10.1 and a first air outlet 10.2 are arranged on the air guide plate 10; the cylinder mounting seat 2 is provided with a second air inlet 2.1, a second exhaust hole 1.1 and a third exhaust hole 2.2; the first air inlet hole 10.1 is communicated with the second air inlet hole 2.1, and the second air inlet hole 2.1 is communicated with the air inlet cavity 5; the second exhaust hole 1.1 is communicated with the exhaust cavity 4, the second exhaust hole 1.1 is communicated with the third exhaust hole 2.2, and the third exhaust hole 2.2 is communicated with the first exhaust hole 10.2. The third exhaust hole 2.2 and the second air inlet hole 2.1 are symmetrically arranged at intervals, and the first air inlet hole 10.1 and the first exhaust hole 10.2 are arranged between the second air inlet hole 2.1 and the third exhaust hole 2.2 at intervals. According to the cylinder piston sequential gear mechanism, the air passage of the cylinder mounting seat is innovatively designed, and the air inlet of the first air inlet hole can be converted into air inlet of the air inlet cavity, so that the driving habit of operating and engaging a gear by a whole vehicle of a driver can be met when the gear box is engaged.
As shown in fig. 7 and 8, the cylinder mounting base 2 is provided with a first air guide groove 11 and a second air guide groove 12 which are symmetrically arranged, and the first air guide groove 11 is used for communicating a first air inlet hole 10.1 and a second air inlet hole 2.1; the second air guide groove 12 is used for communicating the third exhaust hole 2.2 and the first exhaust hole 10.2. The third exhaust hole 2.2, the first air inlet hole 10.1, the first exhaust hole 10.2 and the second air inlet hole 2.1 are sequentially positioned on the same straight line. Referring to fig. 7 and 8, one end of the first air guide groove 11 is communicated with a first air inlet hole 10.1, the other end of the first air guide groove 11 is communicated with a second air inlet hole 2.1, when the first air inlet hole 10.1 is used for air intake, air is pushed through the first air guide groove 11 to enter the second air inlet hole 2.1, so that the air communication between the first air inlet hole 10.1 and the second air inlet hole 2.1 is realized, the first air inlet hole 10.1 is used for air intake, and the second air inlet hole 2.1 is used for ventilation to enter the air intake cavity 5. One end of the second air guide groove 12 is communicated with the third exhaust hole 2.2, the other end of the second air guide groove 12 is communicated with the first exhaust hole 10.2, and when the third exhaust hole 2.2 exhausts, air is pushed to enter the first exhaust hole 10.2 through the second air guide groove 12, so that the third exhaust hole 2.2 is communicated with the first exhaust hole 10.2.
As shown in fig. 5 and 6, the damping seat 9 includes a body 9.1 having a hollow inner cavity, the inner cavity of the body 9.1 is provided with a spring 9.2 and a contact 9.3, one end of the contact 9.3 abuts against the spring 9.2, and the other end of the contact 9.3 extends out of the inner cavity of the body 9.1 to be suspended.
As shown in fig. 9 and 10, the cylinder shaft 6 is provided with a guide groove 13 engaged with the damping seat 9, and the contact 9.3 may extend into the guide groove 13 to be slidably engaged therewith. A first limiting hole groove 13.1 and a second limiting hole groove 13.2 are formed in the guide groove 13, and the contact 9.3 can be embedded into the first limiting hole groove 13.1 or the second limiting hole groove 13.2 to limit the contact. The device is characterized in that the device is guided through a damping seat, a guide groove is designed on a cylinder shaft, a contact of the damping seat is lifted in the process of ventilation movement of a cylinder piston, the contact of the damping seat is pressed down by a spring after the piston is in place in the ventilation movement, the contact falls into a first limiting hole groove or a second limiting hole groove of the cylinder shaft, the air hole of the cylinder is cut off, the cylinder shaft is guided by the damping seat and is embedded into the first limiting hole groove or the second limiting hole groove of the cylinder shaft, the cylinder shaft cannot rotate or move in a string mode, the gear is guaranteed to be correct, the cylinder piston is guaranteed not to be stressed after being in place in gear, the reliability of the cylinder piston is improved, and the whole automobile mouth tablet is improved.
In the prior art, a cylinder 1 and a cylinder fixing seat 26 of a cylinder piston sequential gear mechanism are fixedly connected through a bolt 19, an air inlet cavity 16 is used for air inlet, an air outlet cavity 17 is used for air exhaust, a piston 3 is pushed to move rightwards, the piston is connected with a cylinder shaft 6 through a fastening piece 14, the cylinder shaft 6 pushes a gear shifting fork 7 to rotate around a fulcrum bolt 18, and a gear shifting pin 8 (the gear shifting pin 8 can rotate around a matching hole in the gear shifting fork 7) is driven to move leftwards. The intake air of the intake chamber 16 is introduced through the first inlet 21 → the second inlet 23 → the third inlet 24 → the intake chamber 16 of the air guide plate 20. The exhaust of the gas outlet chamber 17 is performed through the second outlet 25 → the first outlet 22 of the cylinder holder 26. The gas outlet cavity 17 is used for air inlet, the gas inlet cavity 16 is used for air outlet, the gas path transmission direction is opposite to the gas inlet direction of the gas inlet cavity 16, and the gas outlet cavity 17 is used for air outlet. In the prior art, the air cylinder is normally ventilated, the defects are that the air cylinder piston 3 is normally stressed, the service life is short, the whole public praise is influenced, the air cylinder shaft is not guided and limited, the air cylinder shaft is easy to rotate and separate in the gear engaging process, and the operation is unreliable. The air is fed into the air inlet cavity 5 through the first air inlet hole 10.1 → the second air inlet hole 2.1 → the air inlet cavity 5 on the air guide plate 10. The exhaust chamber 4 exhausts through the second exhaust port 1.1 → the third exhaust port 2.2 → the first exhaust port 10.2 in the cylinder 1. The air inlet cavity 5 is used for air inlet, the air outlet cavity 4 is used for air outlet, and the air path transmission direction is opposite to that in the prior art. In the motion process of the cylinder shaft, the damping seat guides; after the cylinder shaft moves in place, the cylinder cuts off gas, the damping seat contact is pressed into the spherical groove of the cylinder shaft, and the gear shifting fork is prevented from rotating around the shaft and moving in a string mode.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Here, it should be noted that the description of the above technical solutions is exemplary, the present specification may be embodied in different forms, and should not be construed as being limited to the technical solutions set forth herein. Rather, these descriptions are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solution of the present invention is limited only by the scope of the claims.
The shapes, sizes, ratios, angles, and numbers disclosed to describe aspects of the specification and claims are examples only, and thus, the specification and claims are not limited to the details shown. In the following description, when a detailed description of related known functions or configurations is determined to unnecessarily obscure the focus of the present specification and claims, the detailed description will be omitted.
Where the terms "comprising", "having" and "including" are used in this specification, there may be another part or parts unless otherwise stated, and the terms used may generally be in the singular but may also be in the plural.
It should be noted that although the terms "first," "second," "top," "bottom," "side," "other," "end," "other end," and the like may be used and used in this specification to describe various components, these components and parts should not be limited by these terms. These terms are only used to distinguish one element or section from another element or section. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, with the top and bottom elements being interchangeable or switchable with one another, where appropriate, without departing from the scope of the present description; the components at one end and the other end may be of the same or different properties to each other.
Further, in constituting the component, although it is not explicitly described, it is understood that a certain error region is necessarily included. In describing positional relationships, for example, when positional sequences are described as being "on.. above", "over.. below", "below", and "next", unless such words or terms are used as "exactly" or "directly", they may include cases where there is no contact or contact therebetween. If a first element is referred to as being "on" a second element, that does not mean that the first element must be above the second element in the figures. The upper and lower portions of the member will change depending on the angle of view and the change in orientation. Thus, in the drawings or in actual construction, if a first element is referred to as being "on" a second element, it can be said that the first element is "under" the second element and the first element is "over" the second element. In describing temporal relationships, unless "exactly" or "directly" is used, the description of "after", "subsequently", and "before" may include instances where there is no discontinuity between steps.
The features of the various embodiments of the present invention may be partially or fully combined or spliced with each other and performed in a variety of different configurations as would be well understood by those skilled in the art. Embodiments of the invention may be performed independently of each other or may be performed together in an interdependent relationship.
Claims (10)
1. The utility model provides a cylinder piston is in same direction as fender mechanism which characterized in that: the air cylinder comprises an air cylinder (1) and an air cylinder mounting seat (2), wherein a piston (3) is arranged in the air cylinder (1), and the air cylinder (1) is divided into an exhaust cavity (4) and an air inlet cavity (5) by the piston (3); a cylinder shaft (6) is arranged on the piston (3), one end of the cylinder shaft (6) is fixedly connected with the piston (3), the other end of the cylinder shaft (6) penetrates through the cylinder mounting seat (2) to be fixedly connected with a shift fork (7), and the shift fork (7) is in transmission connection with a shift pin (8); the cylinder shaft (6) is provided with a damping seat (9) for axially limiting the cylinder shaft; the piston (3) can drive the cylinder shaft (6) to move transversely under the action of the pressure in the cylinder so as to drive the gear shifting fork (7) and the gear shifting pin (8) to move to realize gear shifting of the gearbox, air is cut off in the cylinder after the cylinder shaft (6) moves in place, and the cylinder shaft (6) is limited through the damping seat (9).
2. The cylinder piston downshifting mechanism according to claim 1, wherein: the exhaust cavity (4) is arranged on one side, away from the cylinder shaft (6), of the piston (3); the air inlet cavity (5) is arranged on the other side, close to the cylinder shaft (6), of the piston (3).
3. The cylinder piston downshifting mechanism according to claim 2, wherein: the air cylinder is characterized by further comprising an air guide plate (10) fixedly connected with the air cylinder mounting seat (2), wherein a first air inlet hole (10.1) and a first exhaust hole (10.2) are formed in the air guide plate (10); a second exhaust hole (1.1) is formed in the cylinder (1); a second air inlet hole (2.1) and a third air outlet hole (2.2) are formed in the air cylinder mounting seat (2);
the first air inlet hole (10.1) is communicated with the second air inlet hole (2.1), and the second air inlet hole (2.1) is communicated with the air inlet cavity (5); the second exhaust hole (1.1) is communicated with the exhaust cavity (4), the second exhaust hole (1.1) is communicated with the third exhaust hole (2.2), and the third exhaust hole (2.2) is communicated with the first exhaust hole (10.2).
4. The cylinder piston downshifting mechanism according to claim 3, wherein: the third exhaust hole (2.2) and the second air inlet hole (2.1) are symmetrically arranged at intervals, and the first air inlet hole (10.1) and the first exhaust hole (10.2) are arranged between the second air inlet hole (2.1) and the third exhaust hole (2.2) at intervals.
5. The cylinder piston downshifting mechanism according to claim 4, wherein: a first air guide groove (11) and a second air guide groove (12) which are symmetrically arranged are formed in the air cylinder mounting seat (2), and the first air guide groove (11) is used for communicating the first air inlet hole (10.1) with the second air inlet hole (2.1); the second air guide groove (12) is used for communicating the third exhaust hole (2.2) and the first exhaust hole (10.2).
6. The cylinder piston downshifting mechanism according to claim 5, wherein: the third exhaust hole (2.2), the first air inlet hole (10.1), the first exhaust hole (10.2) and the second air inlet hole (2.1) are sequentially positioned on the same straight line.
7. The cylinder piston sequential gear mechanism according to any one of claims 1 to 6, characterized in that: damping seat (9) are including body (9.1) that have the cavity inner chamber, the inner chamber of body (9.1) is provided with spring (9.2) and contact (9.3), the one end of contact (9.3) with spring (9.2) butt, the other end of contact (9.3) is worn out the inner chamber extension suspension of body (9.1).
8. The cylinder piston downshifting mechanism according to claim 7, wherein: the cylinder shaft (6) is provided with a guide groove (13) matched with the damping seat (9), and the contact (9.3) can extend into the guide groove (13) to be in sliding fit with the guide groove.
9. The cylinder piston downshifting mechanism according to claim 8, wherein: a first limiting hole groove (13.1) and a second limiting hole groove (13.2) are formed in the guide groove (13), and the contact (9.3) can be embedded into the first limiting hole groove (13.1) or the second limiting hole groove (13.2) to limit the contact.
10. The cylinder piston sequential gear mechanism according to any one of claims 1 to 6, characterized in that: one end of the cylinder shaft (6) is fixedly connected with the piston (3) through a fastening piece (14), and the other end of the cylinder shaft (6) is fixedly connected with the gear shifting fork (7) through a fastening pin (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587557.XA CN113357363B (en) | 2021-05-27 | 2021-05-27 | Sequential gear mechanism for cylinder piston |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587557.XA CN113357363B (en) | 2021-05-27 | 2021-05-27 | Sequential gear mechanism for cylinder piston |
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| CN113357363A true CN113357363A (en) | 2021-09-07 |
| CN113357363B CN113357363B (en) | 2022-10-04 |
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| CN202110587557.XA Active CN113357363B (en) | 2021-05-27 | 2021-05-27 | Sequential gear mechanism for cylinder piston |
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| CN204716961U (en) * | 2015-04-28 | 2015-10-21 | 陕西法士特齿轮有限责任公司 | The auxiliary box cylinder assembly of a kind of high gear side band spring |
| CN205715612U (en) * | 2016-06-24 | 2016-11-23 | 中国重汽集团大同齿轮有限公司 | Variator electronic gas control top cover |
| CN211901546U (en) * | 2019-12-31 | 2020-11-10 | 扬中市通发实业有限公司 | Novel power takeoff |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201651273U (en) * | 2009-07-29 | 2010-11-24 | 陕西法士特齿轮有限责任公司 | Cylinder with cylinder block provided with bidirectional support |
| CN202215726U (en) * | 2011-08-30 | 2012-05-09 | 杭州博邦传动科技有限公司 | Multi-gear compound cylinder of automobile drive system |
| CN203686096U (en) * | 2013-12-25 | 2014-07-02 | 大连耐驰机械电子设备有限公司 | Double-piston cylinder gear-shifting hand feeling simulation mechanism |
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| Publication number | Publication date |
|---|---|
| CN113357363B (en) | 2022-10-04 |
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