CN114483818A - Hydraulic control shifting fork capable of pushing high-speed rotating part - Google Patents
Hydraulic control shifting fork capable of pushing high-speed rotating part Download PDFInfo
- Publication number
- CN114483818A CN114483818A CN202111500453.7A CN202111500453A CN114483818A CN 114483818 A CN114483818 A CN 114483818A CN 202111500453 A CN202111500453 A CN 202111500453A CN 114483818 A CN114483818 A CN 114483818A
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- China
- Prior art keywords
- shifting fork
- fork
- oil
- piston
- hydraulic control
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- Pending
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/28—Automatic clutches actuated by fluid pressure
- F16D43/284—Automatic clutches actuated by fluid pressure controlled by angular speed
-
- 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
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention provides a hydraulic control shifting fork capable of pushing a high-speed rotating part, which is characterized in that: including hydro-cylinder body, piston, shift fork and jar internal connection oil pipe, characterized by: the piston is located inside the cylinder body, the shifting fork is arranged between the two pistons, the hydraulic control shifting fork is integrally located on the side of the pushed part, and the shifting fork is in contact with the pushed part. The integrated hydraulic control shifting fork is adopted, so that the shifting fork provides working force for pushing a high-speed rotating part, and meanwhile, sufficient lubrication is provided for a high-limit friction surface, so that the hydraulic control shifting fork meets the working requirement of pushing a clutch locking gear ring under the high-speed running state of the synchronous automatic clutch.
Description
Technical Field
The invention belongs to the field of hydraulic control shifting forks, and particularly relates to a hydraulic control shifting fork capable of pushing a high-speed rotating part.
Background
The synchronous automatic clutch is a one-way overrunning clutch, mainly comprising an input assembly, a sliding assembly and an output assembly, wherein a spiral amplitude is arranged between the input assembly and the sliding assembly, and a ratchet-pawl mechanism and a torque-transmitting sleeve tooth amplitude are arranged between the sliding assembly and the output assembly. When the rotating speed of the input end of the clutch is greater than that of the output end of the clutch, the ratchet wheel pawl is combined with the trigger sliding piece to move, so that the clutch is automatically engaged; when the rotating speed of the input end of the clutch is less than that of the output end, the tooth amplitude of the torque transmission sleeve drives the spiral amplitude to move reversely, so that the clutch is automatically disengaged. As connecting equipment in a mechanical system, the connecting equipment has wide application in the industries of ships, electric power, steel, chemical engineering and the like, and in order to adapt to complicated and changeable use requirements in different units, when the synchronous automatic clutch is required to keep the basic function of the overrunning clutch and can carry out bidirectional transmission motion and torque or not transmit motion and torque under certain working conditions, a locking gear ring is required to be additionally arranged on a sliding component or an input component of the clutch, the working position of the clutch sliding piece is locked in a disengagement state or an engagement state by pushing the locking gear ring to move axially through the shifting fork, when the working position of the sliding piece is locked in the disengagement state, the clutch is not influenced by the rotating speed and is always in a disengaged state, the working position of the sliding piece is locked in an engaged state, the clutch is always in a joint state without being influenced by the rotating speed, and when the working position of the sliding piece is unlocked, the clutch recovers the function of the overrunning clutch. When the shifting fork pushes the locking gear ring to act, the locking gear ring is in a high-speed rotating state, the shifting fork needs to bear a large relative sliding speed in the process of pushing the locking gear ring, and the linear speed of the contact part of the shifting fork and the locking gear ring in some high-speed units can reach more than 100m/s, so that a stable and reliable shifting fork structure is urgently needed to meet the working requirement of pushing the locking gear ring of the clutch in the high-speed operating state of the synchronous automatic clutch.
Disclosure of Invention
The invention aims to solve the problem that a locking gear ring of a synchronous automatic clutch is pushed by an external auxiliary device to change the position when the synchronous automatic clutch is in a high-speed running state.
The utility model provides a can promote hydraulic control shift fork of high-speed rotation piece, includes cylinder body 110, piston 130, shift fork 120 and in-cylinder connection oil pipe 140, characterized by: the piston 130 is located inside the cylinder body 110, the shifting fork 120 is arranged between the two pistons, the whole hydraulic control shifting fork 100 is located on the side of the pushed part, and the shifting fork 120 is in contact with the pushed part.
Furthermore, the hydraulic control shifting fork 100 has 3 oil inlet ports, one oil inlet port is connected with an oil path continuously supplying lubricating oil, the other two oil inlet ports are respectively connected with the A, B working oil ports of the 1 two-position four-way electromagnetic valve, and the A, B working oil ports are respectively communicated with the two working oil chambers.
Further, a gap is sealed between the piston 130 and the cylinder body 110, a circular groove is formed at the end of the piston 130, and when the piston 130 is attached to the end cover, the oil inlet of the working cavity is not covered.
Further, the shifting fork 120 is clamped between the two pistons 130 as an execution end, the pistons 130 are connected with the shifting fork 120 through screws, the pistons 130 and the shifting fork move at a certain speed, the two working positions of the pistons 130 are both arranged inside the cylinder body 110, and a lubricating oil hole is formed in the center of the piston at one side.
Further, an in-cylinder connection oil pipe is arranged inside the hydraulic control shifting fork 100, one end of the in-cylinder connection oil pipe is connected with the oil cylinder body 110, the other end of the in-cylinder connection oil pipe is connected with a piston provided with an oil hole, and an internal oil passage of the piston is connected with an internal main oil passage of the shifting fork.
Furthermore, two sides of a friction surface between the shifting fork 120 and the pushed part are provided with internal shifting fork distribution oil passages and are communicated with the internal shifting fork main oil passages, each shifting fork friction surface is provided with 3 shifting fork lubricating oil nozzles, and the 3 shifting fork lubricating oil nozzles are simultaneously communicated with the internal shifting fork distribution oil passages.
Furthermore, an anti-rotation pin 150 is installed on the cylinder body 110, the anti-rotation pin 150 is fixed with the cylinder body 110, the anti-rotation pin 150 penetrates through the shifting fork, and the axis of the anti-rotation pin 150 is parallel to the axis of the piston.
The invention has the beneficial effects that:
the integrated hydraulic control shifting fork is adopted, so that the shifting fork provides working force for pushing a high-speed rotating part, and meanwhile, sufficient lubrication is provided for a high-limit friction surface, so that the hydraulic control shifting fork meets the working requirement of pushing a clutch locking gear ring under the high-speed running state of the synchronous automatic clutch.
Drawings
FIG. 1 is a schematic view of a hydraulically controlled shift fork and clutch locking ring gear of the present invention;
FIG. 2 is a cross section and oil passage control diagram of the hydraulic control fork of the present invention;
FIG. 3 is a sectional view of portion A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a cross-sectional view B-B of FIG. 3 of the present invention;
FIG. 5 is a three-dimensional view of the fork of the present invention;
FIG. 6 is a cross-sectional view of the fork lubricant nozzle of the present invention;
FIG. 7 is an overall three-dimensional view of the cylinder of the present invention;
fig. 8 is a cross-sectional view a-a of fig. 2 of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a hydraulically controlled fork 100 is installed on a cylinder bracket 2 in an equipment cabinet 1 and disposed at a side of a rotating clutch locking ring gear 200, and the fork 120 moves left and right to push the clutch locking ring gear 200 to change its axial position. As shown in fig. 2, the hydraulically controlled fork 100 is controlled by a two-position four-way solenoid valve. The pressure oil source 300 is divided into two paths, one path is a valve front working oil path 310 and is connected with a port P of the electromagnetic valve; one path is a lubricating oil path 320 connected to the oil pipe 140 in the cylinder.
As shown in fig. 2, the cylinder body 110 and the piston 130 are sealed to form two working oil chambers, and since the pilot-controlled fork 100 is installed in the equipment box, the piston 130 and the cylinder body 110 are sealed by a gap, and compared with a formed sealing member, the friction force is smaller, and the pilot-controlled fork 100 can be controlled by using low-pressure lubricating oil of the system. The shifting fork 120 is clamped between the two pistons 130, and compared with the externally arranged shifting fork 120, the structure is more compact. The valve rear working oil way I311 and the valve rear working oil way II 312 are respectively communicated with two working cavities of the hydraulic control shifting fork 100, the control piston 130 and the shifting fork 120 are connected to move left and right, and the clutch locking gear ring 200 is pushed.
As shown in fig. 2, a cylinder internal connection oil pipe 140 is provided inside the hydraulic control fork 100, one end of which is connected to one end of the cylinder body 110 and is communicated with the lubricating oil passage 320, the other end of the cylinder internal connection oil pipe 140 is communicated with the piston internal oil passage 131 inside the piston 130, and the piston internal oil passage 131 is communicated with the fork internal main oil passage 121. The in-cylinder connecting oil pipe 140 is fixed with the cylinder body 110 of the oil cylinder, the in-cylinder connecting oil pipe 140 is in clearance sliding connection with the piston 130, and when the piston 130 moves axially, lubricating oil is not influenced to enter the main oil path 121 in the shifting fork.
As shown in fig. 3 and 4, two shifting fork internal distribution oil passages i 122 are arranged on two sides of the shifting fork 120 and are communicated with a shifting fork internal main oil passage 121, and two shifting fork 120 are also provided with shifting fork internal distribution oil passages ii 123 and are communicated with the shifting fork internal distribution oil passages i 122. As shown in fig. 5, 3 shifting fork lubricating oil nozzles 124 are formed on the friction surfaces of the shifting fork 120 and the clutch locking ring gear 200, 3 shifting fork lubricating oil nozzles 124 on each friction surface are communicated with a distribution oil passage ii 123 in the shifting fork on the side, and lubricating oil is fully lubricated for the friction surfaces of the shifting fork 120 and the clutch locking ring gear 200 through the 3 shifting fork lubricating oil nozzles 124, so that when the working linear speed of the clutch locking ring gear 200 is high, the friction surfaces cannot be severely worn, and the hydraulic control shifting fork 100 can still work reliably.
As shown in fig. 6, in order to ensure the machinability of the fork lubricant nozzle 124, the mechanical machining can be realized by matching the nozzle angle 125 with the distance 126 between the nozzle and the end surface, and ensuring that the extension line of the fork lubricant nozzle 124 does not interfere with the fork body and the alloy on the opposite side.
When the hydraulic control shifting fork 100 rotates to lock the gear ring 200, in addition to axial resistance, friction force in the tangential direction of the locking gear ring 200 is applied to a friction surface between the shifting fork 120 and the locking gear ring 200, and the force can enable the shifting fork 120 to rotate around the axis of the piston 130, in order to limit the rotation of the shifting fork 120, the scheme adopted by the invention is as shown in fig. 7 and 8, an anti-rotation pin 150 is installed on the cylinder body 110, the anti-rotation pin 150 is fixed with the cylinder body 110, the anti-rotation pin 150 penetrates through the shifting fork 110, the shifting fork 110 simultaneously moves along the axis of the piston 130 and the axis of the anti-rotation pin 150, and the shifting fork cannot rotate when the tangential friction force of the locking gear ring 200 is applied.
The shifting fork is integrated with the hydraulic oil cylinder, the shifting fork is used as an execution end of the oil cylinder, two working cavities of the oil cylinder are arranged on two sides of the execution end, and the shifting fork is clamped between two pistons. The oil cylinder is integrally arranged on the support on the inner side wall of the equipment box body, leakage is allowed between the piston and the cylinder body, so that a gap is sealed between the piston and the oil cylinder, a formed sealing element is not needed, the friction force between the piston and the cylinder body is small, and low-pressure system lubricating oil can be used as oil cylinder control oil.
Besides two oil paths connected with the working cavity of the oil cylinder, the oil cylinder is also provided with a lubricating oil path, lubricating oil is led into the shifting fork through a piston on one side, and then is sprayed onto the contact friction surface of the shifting fork and the high-speed rotating part through an oil path distributed in the shifting fork and a shifting fork lubricating oil nozzle, so that sufficient lubrication is provided for the friction surface, and the friction surface can not be abraded and can normally work when the hydraulic control shifting fork pushes the clutch to lock the gear ring.
When the hydraulic control shifting fork pushes the high-speed rotating part, besides the axial resistance of the high-speed rotating part, the friction surface is also subjected to the friction force in the tangential direction of rotation of the high-speed rotating part, the shifting fork can rotate around the axis of the piston by the force, in order to limit the rotation of the shifting fork, an anti-rotation pin is arranged on the cylinder body and penetrates through the shifting fork, the shifting fork moves along the axis of the piston and the axis of the anti-rotation pin simultaneously, and the shifting fork cannot rotate when the tangential friction force of the rotating part is received.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A hydraulic control shifting fork capable of pushing a high-speed rotating part is characterized in that: including hydro-cylinder body (110), piston (130), shift fork (120) and jar internal connection oil pipe (140), characterized by: the piston (130) is located inside the cylinder body (110), the shifting fork (120) is arranged between the two pistons, the hydraulic control shifting fork (100) is integrally located on the side of the pushed piece, and the shifting fork (120) is in contact with the pushed piece.
2. The hydraulically controlled fork as claimed in claim 1, wherein the fork comprises: the hydraulic control shifting fork (100) is provided with 3 oil inlet ports, one oil inlet port is connected with an oil way for continuously supplying lubricating oil, the other two oil inlet ports are respectively connected with the A, B working oil ports of the 1 two-position four-way electromagnetic valve, and the A, B working oil ports are respectively communicated with the two working oil chambers.
3. The hydraulically controlled fork as claimed in claim 1, wherein the fork comprises: and a gap is sealed between the piston (130) and the cylinder body (110) of the oil cylinder, a circular groove is formed at the end part of the piston (130), and the piston (130) does not cover the oil inlet of the working cavity when being attached to the end cover.
4. The hydraulically controlled fork as claimed in claim 1, wherein the fork comprises: the shifting fork (120) is clamped between the two pistons (130) as an execution end, the pistons (130) are connected with the shifting fork (120) through screws, the pistons (130) and the shifting fork move at a certain speed, the two working positions of the pistons (130) are located inside the cylinder body (110), and a lubricating oil hole is formed in the center of the piston at one side.
5. The hydraulically controlled fork as claimed in claim 1, wherein the fork comprises: an in-cylinder connecting oil pipe is arranged inside the hydraulic control shifting fork (100), one end of the hydraulic control shifting fork is connected with an oil cylinder body (110), the other end of the hydraulic control shifting fork is connected with a piston provided with an oil hole, and an internal oil way of the piston is connected with an internal main oil way of the shifting fork.
6. The hydraulically controlled fork as claimed in claim 1, wherein the fork comprises: and two sides of a friction surface between the shifting fork (120) and the pushed part are provided with internal shifting fork distribution oil passages and are communicated with an internal shifting fork main oil passage, and each shifting fork friction surface is provided with 3 shifting fork lubricating oil nozzles which are simultaneously communicated with the internal shifting fork distribution oil passages.
7. The hydraulically controlled fork as claimed in claim 1, wherein the fork comprises: an anti-rotation pin (150) is installed on the oil cylinder body (110), the anti-rotation pin (150) is fixed with the oil cylinder body (110), the anti-rotation pin (150) penetrates through the shifting fork, and the axis of the anti-rotation pin (150) is parallel to the axis of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111500453.7A CN114483818A (en) | 2021-12-09 | 2021-12-09 | Hydraulic control shifting fork capable of pushing high-speed rotating part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111500453.7A CN114483818A (en) | 2021-12-09 | 2021-12-09 | Hydraulic control shifting fork capable of pushing high-speed rotating part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114483818A true CN114483818A (en) | 2022-05-13 |
Family
ID=81493038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111500453.7A Pending CN114483818A (en) | 2021-12-09 | 2021-12-09 | Hydraulic control shifting fork capable of pushing high-speed rotating part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114483818A (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0487861A1 (en) * | 1990-11-30 | 1992-06-03 | CLAAS Kommanditgesellschaft auf Aktien | Three position actuator system |
| JPH10299876A (en) * | 1997-04-25 | 1998-11-13 | Suzuki Motor Corp | Shift fork having lubrication function |
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| CN101245850A (en) * | 2008-03-20 | 2008-08-20 | 重庆大学 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
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| JP2009133375A (en) * | 2007-11-29 | 2009-06-18 | Aisin Ai Co Ltd | Shift fork |
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| CN203131011U (en) * | 2012-12-17 | 2013-08-14 | 浙江万里扬变速器股份有限公司 | Main case and auxiliary case pneumatic gear-shifting transmission operating mechanism |
| KR101476542B1 (en) * | 2013-07-08 | 2014-12-26 | 현대다이모스(주) | Shift actuator of automated manual transmisson |
| CN106151504A (en) * | 2015-03-12 | 2016-11-23 | 盐城工业职业技术学院 | A kind of three hydraulic controls of gear slippage |
| CN106641224A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT hydraulic gear-shifting execution system having mechanical centering function |
| CN209654590U (en) * | 2019-03-15 | 2019-11-19 | 浙江万里扬股份有限公司 | A kind of novel selector fork |
| CN210800024U (en) * | 2019-08-23 | 2020-06-19 | 济南杰迪机车科技有限公司 | Gearbox shifting fork shaft mechanism with internal oil duct |
| EP3842665A1 (en) * | 2019-12-23 | 2021-06-30 | Yamaha Hatsudoki Kabushiki Kaisha | Transmission and vehicle |
| CN113483097A (en) * | 2021-07-30 | 2021-10-08 | 重庆长安汽车股份有限公司 | Hydraulic gear shifting actuating mechanism of transmission |
-
2021
- 2021-12-09 CN CN202111500453.7A patent/CN114483818A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0487861A1 (en) * | 1990-11-30 | 1992-06-03 | CLAAS Kommanditgesellschaft auf Aktien | Three position actuator system |
| JPH10299876A (en) * | 1997-04-25 | 1998-11-13 | Suzuki Motor Corp | Shift fork having lubrication function |
| CN101356391A (en) * | 2006-02-15 | 2009-01-28 | 腓特烈斯港齿轮工厂股份公司 | Shifting device for shifting a motor vehicle gear box |
| CN1987157A (en) * | 2006-12-09 | 2007-06-27 | 奇瑞汽车有限公司 | Electric control mechanical automatic gearbox gear shifting oil cylinder for automobile |
| JP2009133375A (en) * | 2007-11-29 | 2009-06-18 | Aisin Ai Co Ltd | Shift fork |
| CN101245850A (en) * | 2008-03-20 | 2008-08-20 | 重庆大学 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
| CN101344168A (en) * | 2008-08-18 | 2009-01-14 | 重庆大学 | Hydraulic change gear device of mechanical automatic speed transmission |
| CN201386785Y (en) * | 2009-03-04 | 2010-01-20 | 富奥汽车零部件股份有限公司 | Gear selecting and shifting actuator |
| CN102269264A (en) * | 2011-05-09 | 2011-12-07 | 清华大学 | Hydraulic shift oil cylinder for manual transmission |
| CN202100697U (en) * | 2011-06-09 | 2012-01-04 | 十堰维克多工业有限公司 | Actuating mechanism of automatic gearbox of automatic teller machine (ATM) |
| CN202946658U (en) * | 2012-10-31 | 2013-05-22 | 武汉理工通宇新源动力有限公司 | Automatic speed changer hydraulic shifting actuator |
| CN203131011U (en) * | 2012-12-17 | 2013-08-14 | 浙江万里扬变速器股份有限公司 | Main case and auxiliary case pneumatic gear-shifting transmission operating mechanism |
| KR101476542B1 (en) * | 2013-07-08 | 2014-12-26 | 현대다이모스(주) | Shift actuator of automated manual transmisson |
| CN106151504A (en) * | 2015-03-12 | 2016-11-23 | 盐城工业职业技术学院 | A kind of three hydraulic controls of gear slippage |
| CN106641224A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT hydraulic gear-shifting execution system having mechanical centering function |
| CN209654590U (en) * | 2019-03-15 | 2019-11-19 | 浙江万里扬股份有限公司 | A kind of novel selector fork |
| CN210800024U (en) * | 2019-08-23 | 2020-06-19 | 济南杰迪机车科技有限公司 | Gearbox shifting fork shaft mechanism with internal oil duct |
| EP3842665A1 (en) * | 2019-12-23 | 2021-06-30 | Yamaha Hatsudoki Kabushiki Kaisha | Transmission and vehicle |
| CN113483097A (en) * | 2021-07-30 | 2021-10-08 | 重庆长安汽车股份有限公司 | Hydraulic gear shifting actuating mechanism of transmission |
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