CN107477177B - Three-position AMT cylinder and control method thereof - Google Patents
Three-position AMT cylinder and control method thereof Download PDFInfo
- Publication number
- CN107477177B CN107477177B CN201710751588.8A CN201710751588A CN107477177B CN 107477177 B CN107477177 B CN 107477177B CN 201710751588 A CN201710751588 A CN 201710751588A CN 107477177 B CN107477177 B CN 107477177B
- Authority
- CN
- China
- Prior art keywords
- grade
- low
- cylinder
- piston
- grade piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Actuator (AREA)
Abstract
The invention discloses a three-position AMT cylinder and a control method thereof, wherein a pin hole is formed in the middle position of an auxiliary box cylinder, the pin hole is positioned between a low-grade piston and a high-grade piston in the auxiliary box cylinder, a T-shaped spacer is arranged in the pin hole, the up-down movement of the T-shaped spacer is controlled by an electromagnetic armature arranged outside the auxiliary box cylinder, the T-shaped spacer falls into the auxiliary box cylinder and is clamped between the low-grade piston and the high-grade piston, the movement of the high-grade piston and the low-grade piston to the left and right extreme positions is prevented, so that the auxiliary box is ensured to be in a neutral position, the parking force is realized, compared with the existing three-position cylinder, the number of pistons is reduced, the pistons for controlling the auxiliary box to be in the neutral position are not required to be independently arranged, and the two cylinder diameters of the original cylinder are reduced to be one, so that the structure of the auxiliary box is simplified, the structure is simple, the control is convenient, and the use requirement of the AMT gearbox can be met.
Description
Technical Field
The invention belongs to the field of automobile engineering machinery, and particularly relates to a three-position AMT cylinder and a control method thereof.
Background
In engineering machine tool and special-purpose vehicle field, often need the gearbox match power takeoff to satisfy whole car additional device's power take-off requirement, the power take-off requirement can be realized to various special-purpose vehicles in current front-mounted, rearmounted, side, end power takeoff products, automatically controlled mechanical type gearbox (hereinafter abbreviated as AMT) because its structure restriction, end power take-off position installation stopper, side position installation input shaft sensor uses the rear-mounted power takeoff under general circumstances, gets the power from accessory case jackshaft promptly, in order to realize the operation requirement of parking power take-off, needs accessory case cylinder to realize intermediate position. The existing three-position cylinder structure commonly applicable to the mechanical gearbox is characterized in that a middle position cylinder and a middle position piston are added at the rear part of a traditional two-position high-low gear cylinder. When the middle position cylinder is in air, the middle position piston is pushed to move, so that the high-low gear piston is limited to move, the auxiliary box is ensured to be in a neutral gear position, and the parking power taking is realized. However, the middle position cylinder structure formed by two parts of cylinders cannot meet the use requirement of an AMT gearbox, and related electromagnetic valves and displacement sensors cannot be arranged.
Disclosure of Invention
The invention aims to provide a three-position AMT cylinder and a control method thereof, which are used for overcoming the defects of the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a three-position AMT cylinder, including the sub-case cylinder that inside was equipped with low grade piston and high-grade piston and be used for fixed mounting low grade piston and high-grade piston pull out the fork axle, be equipped with the spacer between low grade piston and the high-grade piston, low grade piston and high-grade piston can drive the fork axle and slide about sub-case cylinder intracavity, sub-case cylinder intracavity intermediate position is equipped with the pinhole with sub-case cylinder intracavity intercommunication, be equipped with T type spacer in the pinhole, T type spacer is through setting up its up-and-down motion of electromagnetic armature drive in sub-case cylinder outside, space between low grade piston one side and high-grade piston one side is the intermediate zone, space between low grade piston opposite side and the sub-case cylinder is the low grade district, space between high-grade piston opposite side and the sub-case cylinder is the high-grade district, all be equipped with the air vent with external intercommunication in low grade district and the high-grade district.
Further, one side of the low-grade piston is contacted with one side of the spacer bush, a low-grade area is arranged between the other side of the low-grade piston and the inner wall of the auxiliary box cylinder, a low-grade air passage communicated with the low-grade area is arranged on the inner wall of the auxiliary box cylinder in the low-grade area, a low-grade air inlet groove is arranged at the end part of the inner wall of the auxiliary box cylinder in the low-grade area, and the low-grade air passage is communicated with the low-grade air inlet groove in a straight line;
one side of the high-grade piston is contacted with the other side of the spacer bush, the front part of the other side of the high-grade piston and the inner wall of the auxiliary box cylinder is a high-grade area, a high-grade air passage communicated with the high-grade area is arranged on the inner wall of the auxiliary box cylinder in the high-grade area, a high-grade air inlet groove is arranged at the end part of the inner wall of the auxiliary box cylinder in the high-grade area, and the high-grade air passage and the high-grade air inlet groove are communicated through L-shaped channels.
Further, the upper end of the T-shaped spacer bush is provided with a through hole along the radial direction, and a spacer pin used for preventing the T-shaped spacer bush from falling into the auxiliary box cylinder is arranged in the radial through hole of the T-shaped spacer bush.
Furthermore, one end of the auxiliary box cylinder is sealed through a cylinder cover, and a sealing paper gasket is arranged between the cylinder cover and the auxiliary box cylinder.
Further, the locating pin is provided with an axial vent hole, and the length of the spacer bush is the same as the diameter of the locating pin.
Furthermore, a shifting fork is fixedly arranged at one end of the shifting fork shaft, and the shifting fork is fixedly arranged on the shifting fork shaft through bolts.
Furthermore, the electromagnetic armature is fixedly arranged on the outer side of the auxiliary box cylinder through the fixing frame, so that the electromagnetic armature is ensured to have a fixed distance control locating pin.
Further, a sealing ring is arranged between the shifting fork shaft and the auxiliary box cylinder, sealing rings for sealing the shifting fork shaft are arranged on the inner rings of the low-grade piston and the high-grade piston, and sealing rings for sealing the auxiliary box cylinder are arranged on the outer rings of the low-grade piston and the high-grade piston.
Further, the shifting fork shaft is a stepped shaft, the low-grade piston and the high-grade piston are sleeved on the shifting fork shaft, the other side of the low-grade piston is contacted with the shaft shoulder of the shifting fork shaft, the other end of the shifting fork shaft is connected with the shifting fork shaft through a nut in a threaded manner to fix the low-grade piston and the high-grade piston, and one end of the nut is contacted with the other end of the high-grade piston.
A control method of a three-position AMT cylinder comprises the following steps:
when at least one air passage in the high-grade area and the low-grade area is not ventilated, the electromagnetic armature is electrified, the T-shaped spacer is attached to the electromagnetic armature, and the low-grade piston and the high-grade piston can move freely in the auxiliary box cylinder; when the air passages of the high-grade area and the low-grade area are all ventilated, the electromagnetic armature is powered off, the T-shaped spacer sleeve falls into the auxiliary box cylinder and is clamped between the low-grade piston and the high-grade piston, and the low-grade piston and the high-grade piston are prevented from moving in the auxiliary box cylinder.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the three-position AMT cylinder and the control method thereof, the pin hole is formed in the middle of the auxiliary box cylinder, the pin hole is positioned between the low-grade piston and the high-grade piston in the auxiliary box cylinder, the T-shaped spacer bush is arranged in the pin hole, the electromagnetic armature arranged on the outer side of the auxiliary box cylinder is used for controlling the up-and-down movement of the T-shaped spacer bush, the T-shaped spacer bush falls into the auxiliary box cylinder and is clamped between the low-grade piston and the high-grade piston, the movement of the high-grade piston and the low-grade piston in the left and right limiting positions is prevented, the auxiliary box is ensured to be in the neutral position, the parking power taking is realized, compared with the existing three-position cylinder, the number of pistons is reduced, the pistons used for controlling the auxiliary box to be in the neutral position are not required to be independently arranged, and the two cylinder diameters of the original cylinder are reduced to be one, so that the structure of the auxiliary box is simplified, the structure is simple, the control is convenient, and the use requirement of the AMT can be met.
Further, the upper end of the T-shaped spacer bush is provided with a through hole along the radial direction, and a baffle pin used for preventing the T-shaped spacer bush from falling into the auxiliary box cylinder completely is arranged in the radial through hole of the T-shaped spacer bush, so that the use safety of the T-shaped spacer bush is ensured.
Drawings
FIG. 1 is a schematic view of the present invention in a low gear position.
Fig. 2 is a top view of fig. 1.
FIG. 3 is a schematic view of the present invention in an intermediate position.
FIG. 4 is a schematic view of the present invention in a top-level position.
Fig. 5 is a control logic diagram of the present invention.
In the figure, 1, an auxiliary box cylinder; 2. a low-range piston; 3. a high-grade piston; 4. a fork shaft; 5. a spacer bush; 6. t-shaped spacer bush; 7. an electromagnetic armature; 8. a barrier pin; 9. a cylinder head; 10. sealing paper pads; 11. shifting fork; 12. a bolt; 13. a nut; 14. and (5) pulling out the fork shaft.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1 to 4, a three-position AMT cylinder comprises a sub-tank cylinder 1 with a low-grade piston 2 and a high-grade piston 3 inside and a shifting fork shaft 4 for fixedly mounting the low-grade piston 2 and the high-grade piston 3, wherein the low-grade piston 2 and the high-grade piston 3 are sleeved on the shifting fork shaft 4, a spacer bush 5 is arranged between the low-grade piston 2 and the high-grade piston 3, the low-grade piston 2 and the high-grade piston 3 can drive the shifting fork shaft 4 to slide left and right in the cavity of the sub-tank cylinder 1, a pin hole communicated with the cavity of the sub-tank cylinder 1 is arranged in the middle position of the cavity of the sub-tank cylinder 1, a T-shaped spacer bush 6 is arranged in the pin hole, the T-shaped spacer bush 6 drives the sub-tank cylinder 1 to move up and down through an electromagnetic armature 7 arranged outside the sub-tank cylinder 1, a through hole is arranged at the upper end of the T-shaped spacer bush 6 in the radial through hole, and a spacer pin 8 for preventing the T-shaped spacer bush 6 from falling into the sub-tank cylinder 1 completely is arranged in the radial through hole of the T-shaped spacer bush 6; one end of the auxiliary box cylinder 1 is sealed through a cylinder cover 9, and a sealing paper gasket 10 is arranged between the cylinder cover 9 and the auxiliary box cylinder 1; the T-shaped spacer bush 6 is provided with an axial vent hole.
The area between the low-grade piston 2 and the high-grade piston 3 is a middle area, one side of the low-grade piston 2 is contacted with one side of the spacer bush 5, a low-grade area is arranged between the other side of the low-grade piston 2 and the inner wall of the auxiliary box cylinder 1, a low-grade air passage communicated with the low-grade area is arranged on the inner wall of the auxiliary box cylinder 1 in the low-grade area, a low-grade air inlet groove is arranged at the end part of the inner wall of the auxiliary box cylinder 1 in the low-grade area, and the low-grade air passage is communicated with the low-grade air inlet groove in a straight line;
the length of the spacer bush 5 is the same as the diameter of the T-shaped spacer bush 6;
one side of the high-grade piston 3 is contacted with the other side of the spacer bush, the front part of the other side of the high-grade piston 3 and the inner wall of the auxiliary box cylinder 1 is a high-grade area, a high-grade air passage communicated with the high-grade area is arranged on the inner wall of the auxiliary box cylinder 1 in the high-grade area, a high-grade air inlet groove is arranged at the end part of the inner wall of the auxiliary box cylinder 1 in the high-grade area, and the high-grade air passage is communicated with the high-grade air inlet groove through an L-shaped channel;
a shifting fork 11 is fixedly arranged at one end of the shifting fork shaft 4, and the shifting fork 11 is fixedly arranged on the shifting fork shaft 4 through a bolt 12;
the electromagnetic armature 7 is fixedly arranged at the outer side of the auxiliary box cylinder 1 through the fixing frame 14, so that the electromagnetic armature is ensured to have a fixed distance control T-shaped spacer 6;
the shifting fork shaft 4 is a stepped shaft, the low-grade piston 2 and the high-grade piston 3 are sleeved on the shifting fork shaft 4, the other side of the low-grade piston 2 is contacted with the shaft shoulder of the shifting fork shaft 4, the other end of the shifting fork shaft 4 is in threaded connection with the shifting fork shaft 4 through a nut 13 to fix the low-grade piston 2 and the high-grade piston 3, and one end of the nut 13 is contacted with the other end of the high-grade piston 3;
a sealing ring is arranged between the shifting fork shaft 4 and the auxiliary box cylinder 1, sealing rings for sealing with the shifting fork shaft are arranged on the inner rings of the low-grade piston and the high-grade piston, and sealing rings for sealing with the auxiliary box cylinder 1 are arranged on the outer rings of the low-grade piston and the high-grade piston;
when the low-grade piston and the high-grade piston are in the left-right limiting positions, the T-shaped spacer bush 6 cannot fall into the auxiliary box cylinder 1.
A three-position AMT cylinder control method comprises the following steps:
as shown in a control logic diagram in fig. 5, when at least one air passage in a high-grade area and a low-grade area is not ventilated, the electromagnetic armature 7 is electrified, the T-shaped spacer 6 is attached to the electromagnetic armature 7, and the low-grade piston 2 and the high-grade piston 3 can freely move in the auxiliary box cylinder 1; when the upper-grade area and the lower-grade area are both ventilated, the electromagnetic armature 7 is powered off, the T-shaped spacer bush 6 falls into the auxiliary box cylinder 1 and is clamped between the lower-grade piston 2 and the upper-grade piston 3, so that the lower-grade piston 2 and the upper-grade piston 3 are prevented from moving in the auxiliary box cylinder 1.
Claims (8)
1. A three-position AMT cylinder is characterized by comprising a sub-tank cylinder (1) internally provided with a low-grade piston (2) and a high-grade piston (3) and a shifting fork shaft (4) used for fixedly mounting the low-grade piston (2) and the high-grade piston (3), wherein a spacer bush (5) is arranged between the low-grade piston (2) and the high-grade piston (3), the low-grade piston (2) and the high-grade piston (3) can drive the shifting fork shaft (4) to slide left and right in a cavity of the sub-tank cylinder (1), a pin hole communicated with the cavity of the sub-tank cylinder (1) is arranged in the middle position of the cavity of the sub-tank cylinder (1), a T-shaped spacer bush (6) is arranged in the pin hole, the T-shaped spacer bush (6) drives an armature to move up and down through an electromagnetic valve (7) arranged outside the sub-tank cylinder (1), a space between one side of the low-grade piston (2) and one side of the high-grade piston (3) is a middle area, a space between the other side of the low-grade piston (2) and the sub-tank cylinder (1) is a low-grade area, a space between the other side of the low-grade piston (3) and the sub-grade piston (1) is a low-grade area, the space between the other side of the high-grade piston (3) and the side of the sub-grade piston (1) and the low-grade piston (1) is a low-grade area communicated with the low-grade area (1), the low-grade area (1) and the low-grade area is communicated with the low air passage area 1, the end part of the inner wall of the auxiliary box cylinder (1) in the low-gear area is provided with a low-gear air inlet groove, and the low-gear air passage is communicated with the low-gear air inlet groove in a straight line;
one side of the high-grade piston (3) is contacted with the other side of the spacer bush, the front part of the other side of the high-grade piston (3) and the inner wall of the auxiliary box cylinder (1) is in a high-grade area, a high-grade air passage communicated with the high-grade area is arranged on the inner wall of the auxiliary box cylinder (1) in the high-grade area, a high-grade air inlet groove is arranged at the end part of the inner wall of the auxiliary box cylinder (1) in the high-grade area, the high-grade air passage is communicated with the high-grade air inlet groove in an L-shaped passage, a through hole is radially arranged at the upper end of the T-shaped spacer bush (6), and a spacer pin (8) used for preventing the T-shaped spacer bush (6) from falling into the auxiliary box cylinder (1) is arranged in the radial through hole of the T-shaped spacer bush (6).
2. A three-position AMT cylinder according to claim 1, characterized in that one end of the sub-tank cylinder (1) is sealed by a cylinder head (9), a sealing paper gasket (10) being arranged between the cylinder head (9) and the sub-tank cylinder (1).
3. The three-position AMT cylinder according to claim 1, characterized in that the positioning pin (6) is provided with an axial vent hole, and the length of the spacer (5) is the same as the diameter of the positioning pin (6).
4. The three-position AMT cylinder according to claim 1, characterized in that a fork (11) is fixedly mounted at one end of the fork shaft (4), and the fork (11) is fixedly mounted on the fork shaft (4) by bolts (12).
5. The three-position AMT cylinder according to claim 1, characterized in that the electromagnetic armature (7) is fixedly mounted on the outer side of the auxiliary box cylinder (1) through a fixing frame (14), and the electromagnetic armature is ensured to have a fixed distance control positioning pin (6).
6. The three-position AMT cylinder according to claim 1, wherein a sealing ring is arranged between the shifting fork shaft (4) and the auxiliary box cylinder (1), sealing rings for sealing with the shifting fork shaft are arranged on the inner rings of the low-grade piston and the high-grade piston, and sealing rings for sealing with the auxiliary box cylinder (1) are arranged on the outer rings of the low-grade piston and the high-grade piston.
7. The three-position AMT cylinder according to claim 1, wherein the shifting fork shaft (4) is a stepped shaft, the low-grade piston (2) and the high-grade piston (3) are sleeved on the shifting fork shaft (4), the other side of the low-grade piston (2) is contacted with the shaft shoulder of the shifting fork shaft (4), the other end of the shifting fork shaft (4) is in threaded connection with the shifting fork shaft (4) through a nut (13) to fix the low-grade piston (2) and the high-grade piston (3), and one end of the nut (13) is contacted with the other end of the high-grade piston (3).
8. A control method for a three position AMT cylinder as claimed in claim 1, comprising the steps of:
when at least one air passage in the high-grade area and the low-grade area is not ventilated, the electromagnetic armature (7) is electrified, the T-shaped spacer bush (6) is attached to the electromagnetic armature (7), and the low-grade piston (2) and the high-grade piston (3) can move freely in the auxiliary box cylinder (1); when the air passages of the high-grade area and the low-grade area are all ventilated, the electromagnetic armature (7) is powered off, the T-shaped spacer bush (6) falls into the auxiliary box cylinder (1) and is clamped between the low-grade piston (2) and the high-grade piston (3), so that the low-grade piston (2) and the high-grade piston (3) are prevented from moving in the auxiliary box cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710751588.8A CN107477177B (en) | 2017-08-28 | 2017-08-28 | Three-position AMT cylinder and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710751588.8A CN107477177B (en) | 2017-08-28 | 2017-08-28 | Three-position AMT cylinder and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107477177A CN107477177A (en) | 2017-12-15 |
| CN107477177B true CN107477177B (en) | 2023-07-14 |
Family
ID=60603844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710751588.8A Active CN107477177B (en) | 2017-08-28 | 2017-08-28 | Three-position AMT cylinder and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107477177B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1142506A (en) * | 1966-04-04 | 1969-02-12 | Dewandre Co Ltd C | Improvements in or relating to air pressure actuators for gear change mechanisms |
| US5012725A (en) * | 1990-04-19 | 1991-05-07 | Rockwell International Corporation | Three position actuator for shifting a two speed transfer case |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU187364B (en) * | 1981-04-16 | 1985-12-28 | Autoipari Kutato Intezet | Pneumatic three-position working cylinder particularly for stageslector mechanism of motor vehicle |
| DE19539472A1 (en) * | 1995-10-24 | 1997-04-30 | Zahnradfabrik Friedrichshafen | Switching device for motor vehicle change gearbox - pneumatic shift servo - |
| CN101240840B (en) * | 2007-02-07 | 2010-09-08 | 哈尔滨三迪工控工程有限公司 | Heavy type lorry transmission-gear box durable main air valve |
| CN202708037U (en) * | 2012-06-27 | 2013-01-30 | 陕西法士特齿轮有限责任公司 | Novel auxiliary box three-position air cylinder execution mechanism |
| CN203335823U (en) * | 2013-05-28 | 2013-12-11 | 陕西法士特齿轮有限责任公司 | Automatic transmission range air blocking cylinder |
| CN207539329U (en) * | 2017-08-28 | 2018-06-26 | 陕西法士特齿轮有限责任公司 | A kind of three position AMT cylinders |
-
2017
- 2017-08-28 CN CN201710751588.8A patent/CN107477177B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1142506A (en) * | 1966-04-04 | 1969-02-12 | Dewandre Co Ltd C | Improvements in or relating to air pressure actuators for gear change mechanisms |
| US5012725A (en) * | 1990-04-19 | 1991-05-07 | Rockwell International Corporation | Three position actuator for shifting a two speed transfer case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107477177A (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102748464B (en) | Novel three-position cylinder executing mechanism of auxiliary box | |
| CN100494724C (en) | Heavy vehicle clutch automatic control system | |
| CN201679916U (en) | Two-gear gearbox assembly for electric bus | |
| CN102705397B (en) | Air-boosting hydraulically driven clutch execution mechanism | |
| EP4039496B1 (en) | Drive axle assembly for vehicle | |
| CN102374277A (en) | Two-file transmission case of electric motor coach | |
| CN104455231A (en) | Double-intermediate shaft transmission assembly matched with parallel hydrodynamic retarder | |
| CN204083071U (en) | A kind of power take-off and power take-off assembly | |
| CN104315109B (en) | Hydraulic transmission gearbox | |
| CN107477177B (en) | Three-position AMT cylinder and control method thereof | |
| CN201137694Y (en) | Simple automobile gear shifting caging mechanism component | |
| CN101813142B (en) | Pneumatic control device for heavy automobile clutch | |
| EP4039497A1 (en) | Drive axle assembly for vehicle | |
| CN202708037U (en) | Novel auxiliary box three-position air cylinder execution mechanism | |
| CN201339708Y (en) | Electromagnetic valve controlled pneumatic shifting automatic speed variator | |
| CN101435503A (en) | Electromagnetic valve controlled pneumatic shifting automatic speed variator | |
| CN103115085B (en) | Automatic clutch actuator for hybrid power vehicle | |
| CN100516599C (en) | Pneumatic gear shifting device | |
| CN104265839A (en) | Power takeoff and power takeoff assembly | |
| CN116985628A (en) | Tractor rear drive axle assembly and tractor | |
| CN207539329U (en) | A kind of three position AMT cylinders | |
| CN205896139U (en) | Heavy derailleur odd -side gear shift cylinder assembly | |
| CN106032840A (en) | Hydraulic control gear shifting system of two-speed automatic gearbox | |
| CN201382146Y (en) | Three-position gear shifting cylinder | |
| CN204432383U (en) | A kind of suspending mechanism of quarry tipper change speed gear box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |