CN105465358A - Hydraulic shifting mechanism of gearbox - Google Patents
Hydraulic shifting mechanism of gearbox Download PDFInfo
- Publication number
- CN105465358A CN105465358A CN201511034511.6A CN201511034511A CN105465358A CN 105465358 A CN105465358 A CN 105465358A CN 201511034511 A CN201511034511 A CN 201511034511A CN 105465358 A CN105465358 A CN 105465358A
- Authority
- CN
- China
- Prior art keywords
- synchronizer
- gear
- input shaft
- piston rod
- cylinder barrel
- 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.)
- Pending
Links
Classifications
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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
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention provides a hydraulic shifting mechanism of a gearbox. The hydraulic shifting mechanism comprises a shifting gear, a synchronizer, a shifting fork and a hydraulic oil cylinder that are mounted in a gearbox housing, wherein a shifting gear bearing is connected with an input shaft; the synchronizer is in spline fit with the input shaft; the shifting fork is connected with the synchronizer; a piston rod of the hydraulic oil cylinder is fixedly arranged in the gearbox housing; a cylinder barrel of the hydraulic oil cylinder is connected with the shifting fork; and the cylinder barrel can drive the synchronizer to slide on the input shaft through the shifting fork, so as to allow the synchronizer to be combined with or separated from the shifting gear. According to the hydraulic shifting mechanism of the gearbox, and the hydraulic oil cylinder driving the shifting fork to move is arranged in the gearbox housing, and the hydraulic oil cylinder and the gearbox are integrated, so that the assembling difficulty is reduced, the mounting is convenient, a space is saved, and no damage is caused easily. The cylinder barrel slides integrally to drive the shifting fork to move, and no deviation is produced in a moving process, so that the precision is high, the stability is good, the sliding stress of the synchronizer is balanced, the abrasion is little, the service life can be prolonged, and the shifting reliability can be improved.
Description
Technical field
The invention belongs to gearbox technical field, be specifically related to a kind of gear box hydraulic gearshift.
Background technique
In existing hydraulic type gearshift, performing the cylinder tube of gear shifting action, to be generally arranged in transmission housing external, shift fork is driven by cylinder piston rod, and then promote synchronizer and combine with power shift gear and carry out transforming gear and powershift, the oil pipe that the flexible dependence of cylinder piston rod is connected with cylinder barrel pumps into and pumps hydraulic oil and controls, there is complex structure in it, matching requirements are high, piston rod is flexible easily there is deviation, cause synchronizer sliding process unbalanced stress, wearing and tearing aggravation, the shortcoming of the lost of life.
Summary of the invention
The present invention aims to provide a kind of gear box hydraulic gearshift that can improve shortcoming existing for existing hydraulic type gearshift.
The technological scheme of this gear box hydraulic gearshift is achieved in that
Described gear box hydraulic gearshift, comprise the power shift gear be all installed in gear box casing, synchronizer, shift fork and hydraulic jack, power shift gear is connected on input shaft by bearing, synchronizer spline fitted is installed on input shaft, shift fork is connected on synchronizer, the piston rod of hydraulic jack is parallel to input shaft and is fixedly installed in gear box casing, the cylinder barrel of hydraulic jack is connected with shift fork, cylinder barrel drives synchronizer to slide on input shaft by shift fork, makes synchronizer combine with power shift gear or be separated.
Further, the sealing of described cylinder barrel two ends, piston rod runs through and is sheathed in cylinder barrel, the piston rod being positioned at inner cavity of cylinder is provided with piston inner cavity of cylinder being divided into two oil pockets, piston rod one end is provided with selector valve, piston rod has been provided with two-way oil circuit, a road is connected between selector valve and an oil pocket of inner cavity of cylinder, and another is connected between another oil pocket of selector valve and inner cavity of cylinder.
Further, described power shift gear has three, and synchronizer has two, is provided with a synchronizer, is provided with another synchronizer between another power shift gear and gearbox shell wall between two power shift gears.
Further, described piston rod is positioned on the two ends outside cylinder barrel and is provided with limiting stopper, and when cylinder barrel and limiting stopper offset, synchronizer combines with the power shift gear of this limiting stopper homonymy.
Further, described power shift gear is all connected with output shaft by the intermediate gear of different drive ratios, by intermediate gear, input shaft rotating speed is passed to output shaft.
During the work of this gear box hydraulic gearshift, power inputs from input shaft, input shaft drives synchronizer to rotate, power shift gear is owing to being connected on input shaft by bearing, therefore the rotation of input shaft can not be passed to power shift gear, when needing gearshift, hydraulic control cylinder efficient, because piston rod is fixed, therefore cylinder barrel stretches relative to piston rod, with driven by shift fork synchronizer with to be changed enter power shift gear corresponding to gear combine, thus by transmission of power to power shift gear, again through the gear motion of a series of intermediate gear, power is finally passed to output shaft.Drive the hydraulic jack of shift fork movement to be placed in gear box casing in this gear box hydraulic gearshift, become as a whole with gearbox, simplify assembling difficulty, be convenient to install, both saved space, not fragile again; Drive shift fork to move by cylinder barrel whole slide, moving process not easily produces deviation, and precision is high, good stability, and synchronizer slip stress is balanced, weares and teares little, is conducive to increasing the service life and increase gearshift reliability.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is this gear box hydraulic gearshift structural representation;
Fig. 2 is cylinder structure schematic diagram.
Description of reference numerals:
In figure: 1. power shift gear, 2. synchronizer, 3. shift fork, 4. input shaft, 5. cylinder barrel, 6. piston rod, 7. selector valve, 8. oil circuit, 9. oil pocket, 10. piston.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature being limited with " first ", " second " etc.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood by concrete condition.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Gear box hydraulic gearshift of the present invention, as shown in Figure 1, comprise the power shift gear 1 be all installed in gear box casing, synchronizer 2, shift fork 3 and hydraulic jack, power shift gear 1 is connected on input shaft 4 by bearing, synchronizer 2 spline fitted is installed on input shaft 4, shift fork 3 is connected on synchronizer 2, the piston rod 6 of hydraulic jack is parallel to input shaft 4 and is fixedly installed in gear box casing, the cylinder barrel 5 of hydraulic jack is connected with shift fork 3, cylinder barrel 5 drives synchronizer 2 to slide on input shaft 4 by shift fork 3, synchronizer 2 is made to combine with power shift gear 1 or be separated.
During the work of this gear box hydraulic gearshift, power inputs from input shaft 4, input shaft 4 drives synchronizer 2 to rotate, power shift gear 1 is owing to being connected on input shaft 4 by bearing, therefore the rotation of input shaft 4 can not be passed to power shift gear 1, when needing gearshift, hydraulic control cylinder efficient, because piston rod 6 is fixed, therefore cylinder barrel 5 stretches relative to piston rod 6, with driven by shift fork 3 synchronizer 2 with to be changed enter power shift gear 1 corresponding to gear combine, thus by transmission of power to power shift gear 1, again through the gear motion of a series of intermediate gear, power is finally passed to output shaft.Drive the hydraulic jack of shift fork 3 movement to be placed in gear box casing in this gear box hydraulic gearshift, become as a whole with gearbox, simplify assembling difficulty, be convenient to install, both saved space, not fragile again; Drive shift fork 3 to move by cylinder barrel 5 whole slide, moving process not easily produces deviation, and precision is high, good stability, and synchronizer slip stress is balanced, weares and teares little, is conducive to increasing the service life and increase gearshift reliability.
In this gear box hydraulic gearshift, as shown in Figure 2, the sealing of described cylinder barrel 5 two ends, piston rod 6 runs through and is sheathed in cylinder barrel 5, the piston rod 6 being positioned at inner cavity of cylinder is provided with the piston 10 inner cavity of cylinder being divided into two oil pockets 9, piston rod 6 one end is provided with selector valve 7, piston rod 6 is provided with two-way oil circuit 8, one tunnel is connected between selector valve 7 and an oil pocket 9 of inner cavity of cylinder, another is connected between another oil pocket 9 of selector valve 7 and inner cavity of cylinder, this kind of structure has reasonable in design, safe and reliable advantage.
In this gear box hydraulic gearshift, described power shift gear 1 has three, synchronizer 2 has two, a synchronizer is provided with between two power shift gears 1, another synchronizer 2, three power shift gears 1 corresponding gear, at a slow speed gear and operation range fast is respectively provided with between another power shift gear 1 and gearbox shell wall.
In this gear box hydraulic gearshift, described piston rod 6 is positioned on the two ends outside cylinder barrel 5 and is provided with limiting stopper, when cylinder barrel 5 and limiting stopper offset, synchronizer 2 combines with the power shift gear 1 of this limiting stopper homonymy, avoids cylinder barrel 5 over-travel to produce collision, impact the mechanical deterioration brought.
In this gear box hydraulic gearshift, described power shift gear 1 is all connected with output shaft by the intermediate gear of different drive ratios, by intermediate gear, input shaft 4 rotating speed is passed to output shaft.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a gear box hydraulic gearshift, it is characterized in that: comprise the power shift gear (1) be all installed in gear box casing, synchronizer (2), shift fork (3) and hydraulic jack, power shift gear (1) is connected on input shaft (4) by bearing, synchronizer (2) spline fitted is installed on input shaft (4), shift fork (3) is connected on synchronizer (2), the piston rod (6) of hydraulic jack is parallel to input shaft (4) and is fixedly installed in gear box casing, the cylinder barrel (5) of hydraulic jack is connected with shift fork (3), cylinder barrel (5) drives synchronizer (2) in the upper slip of input shaft (4) by shift fork (3), synchronizer (2) is made to combine with power shift gear (1) or be separated.
2. gear box hydraulic gearshift according to claim 1, it is characterized in that: described cylinder barrel (5) two ends seal, piston rod (6) runs through and is sheathed in cylinder barrel (5), the piston rod (6) being positioned at inner cavity of cylinder is provided with the piston (10) inner cavity of cylinder being divided into two oil pockets (9), piston rod (6) one end is provided with selector valve (7), piston rod (6) is provided with two-way oil circuit (8), one tunnel is connected between selector valve (7) and an oil pocket (9) of inner cavity of cylinder, another is connected between another oil pocket (9) of selector valve (7) and inner cavity of cylinder.
3. gear box hydraulic gearshift according to claim 1 and 2, it is characterized in that: described power shift gear (1) has three, synchronizer (2) has two, be provided with a synchronizer between two power shift gears (1), between another power shift gear (1) and gearbox shell wall, be provided with another synchronizer (2).
4. gear box hydraulic gearshift according to claim 1 and 2, it is characterized in that: described piston rod (6) is positioned on the two ends outside cylinder barrel (5) and is provided with limiting stopper, when cylinder barrel (5) and limiting stopper offset, synchronizer (2) combines with the power shift gear (1) of this limiting stopper homonymy.
5. gear box hydraulic gearshift according to claim 1 and 2, it is characterized in that: described power shift gear (1) is all connected with output shaft by the intermediate gear of different drive ratios, by intermediate gear, input shaft (4) rotating speed is passed to output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034511.6A CN105465358A (en) | 2015-12-31 | 2015-12-31 | Hydraulic shifting mechanism of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034511.6A CN105465358A (en) | 2015-12-31 | 2015-12-31 | Hydraulic shifting mechanism of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465358A true CN105465358A (en) | 2016-04-06 |
Family
ID=55603373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511034511.6A Pending CN105465358A (en) | 2015-12-31 | 2015-12-31 | Hydraulic shifting mechanism of gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936133A (en) * | 2016-06-29 | 2016-09-14 | 宁波固安力机械科技有限公司 | Adjustable gear type punching machine |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0150583A2 (en) * | 1983-12-05 | 1985-08-07 | Industries Development Corporation (International Services) Co. Ltd. | Automatic gear box |
| DE102008004497A1 (en) * | 2008-01-16 | 2009-07-23 | Schaeffler Kg | Shifting device for gear change transmission, has rod guided through chamber in pressure-tight manner and surface provided in chamber, where surface stays in effective connection with rod and subjectable with medium in sealed manner |
| DE102008063601A1 (en) * | 2008-12-18 | 2010-06-24 | Schaeffler Kg | Switching device of a gearbox |
| CN202001600U (en) * | 2010-12-21 | 2011-10-05 | 上海汽车集团股份有限公司 | Double-clutch automatic transmission gear shift system |
| CN103703287A (en) * | 2011-05-25 | 2014-04-02 | 技术推进公司 | Device for translatably controlling movement of gear change fork for motor vehicle gearbox |
| CN205350325U (en) * | 2015-12-31 | 2016-06-29 | 天津萨克赛斯机械技术开发有限公司 | Gearbox hydraulic pressure gearshift |
-
2015
- 2015-12-31 CN CN201511034511.6A patent/CN105465358A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0150583A2 (en) * | 1983-12-05 | 1985-08-07 | Industries Development Corporation (International Services) Co. Ltd. | Automatic gear box |
| DE102008004497A1 (en) * | 2008-01-16 | 2009-07-23 | Schaeffler Kg | Shifting device for gear change transmission, has rod guided through chamber in pressure-tight manner and surface provided in chamber, where surface stays in effective connection with rod and subjectable with medium in sealed manner |
| DE102008063601A1 (en) * | 2008-12-18 | 2010-06-24 | Schaeffler Kg | Switching device of a gearbox |
| CN202001600U (en) * | 2010-12-21 | 2011-10-05 | 上海汽车集团股份有限公司 | Double-clutch automatic transmission gear shift system |
| CN103703287A (en) * | 2011-05-25 | 2014-04-02 | 技术推进公司 | Device for translatably controlling movement of gear change fork for motor vehicle gearbox |
| CN205350325U (en) * | 2015-12-31 | 2016-06-29 | 天津萨克赛斯机械技术开发有限公司 | Gearbox hydraulic pressure gearshift |
Non-Patent Citations (1)
| Title |
|---|
| 张崇巍，李汉强: "《运动控制系统》", 31 January 2002 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936133A (en) * | 2016-06-29 | 2016-09-14 | 宁波固安力机械科技有限公司 | Adjustable gear type punching machine |
| CN105936133B (en) * | 2016-06-29 | 2017-09-19 | 宁波固安力机械科技有限公司 | Adjustable gear type punch press |
| 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 |
| CN113483097B (en) * | 2021-07-30 | 2022-07-08 | 重庆长安汽车股份有限公司 | Hydraulic gear shifting actuating mechanism of transmission |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |