CN103398046A - Gear shifting device and testing method for hydraulic test of automatic double clutch gearbox - Google Patents
Gear shifting device and testing method for hydraulic test of automatic double clutch gearbox Download PDFInfo
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- CN103398046A CN103398046A CN2013103570106A CN201310357010A CN103398046A CN 103398046 A CN103398046 A CN 103398046A CN 2013103570106 A CN2013103570106 A CN 2013103570106A CN 201310357010 A CN201310357010 A CN 201310357010A CN 103398046 A CN103398046 A CN 103398046A
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Abstract
The invention provides a gear shifting device for a hydraulic test of an automatic double clutch gearbox. The gear shifting device is used for controlling the connection and disconnection of different gear oil paths through the rotation of a core component and a pipe component. The gear shifting device provided by the invention can simulate the gear shifting operation of a synchronizer during the hydraulic test of the automatic double clutch gearbox, so as to reduce the complexity of a testing system structure. The invention further provides a testing method which adopts the gear shifting device to carry out the hydraulic test and can make up the defect of insufficient oil supply.
Description
Technical field
The present invention relates to the gearbox field tests.
Background technique
General dual-clutch transmission hydraulic test all completes on test-bed, for example at application number: the test-bed that proposes in the Chinese invention patent application of 201210500635.9, the applying date: 2012-11-29, denomination of invention " double-clutch automatic gearbox hydraulic module performance test stand and test method ".Certainly, the content measurement difference, hydraulic module is also different, still, basically in test process, all needs frock to connect actual component, system architecture complexity.
For example, when shifting gears hydraulic test, need to and be connected with frock whole gear shifting actuating mechanism assembling, for the dual-clutch transmission that seven forward gears one commonly used reverse gear, need four synchronizer actions, system complex.And, be subject to the power of the oil feed pump of test-bed, when the dual-clutch transmission to different model carries out hydraulic test, may there is the situation for shortage of oil, and change test-bed or more high-power oil feed pump obviously can improve the time and money cost for this reason.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming, provide a kind of gearshift that can simulate synchronizer gearshift action when the double-clutch automatic gearbox hydraulic test, to reduce the test system structure complexity.
For achieving the above object, the invention provides following technological scheme:
A kind of dual-clutch transmission hydraulic test gearshift comprises: coaxial package core components and pipe part together; With described core components, be fixedly connected with to drive the shifting disc that described core components rotates relative to described pipe part; Described core components has the gearshift cavity volume, be communicated with described gearshift cavity volume the gear oil inlet hole, with described at the gear oil inlet hole with circle but disconnected non-the gear oil groove, with the described non-interior oil drainage hole that is communicated with described gearshift cavity volume in keeping off logical oil ring groove, oil extraction annular groove and the oil extraction annular groove that oil groove is communicated with; Described pipe part has a plurality of gear selecting holes of oil through, outer oil drainage hole, same circle setting; Described core components can be rotated to select one in described a plurality of gear selecting hole and be communicated with at the gear oil inlet hole with described, and other gear selecting hole non-ly is communicated with at the gear oil groove with described, and simultaneously described oil through is communicated with described logical oil ring groove maintenance, described outer oil drainage hole is communicated with described oil extraction annular groove maintenance.
Preferably, described pipe part end has the gearshift pin-and-hole, inside establishes spring and ball, and described shifting disc has the cone groove, and the described ball of described spring compressing heads into described cone groove so that described shifting disc is located.
Preferably, described shifting disc is fixedly connected with described core components by bolt.
Preferably, at an end relative with described shifting disc, have the baffle ring that is arranged on described pipe part and be arranged on the snap ring on described core components.
Another object of the present invention is to provide a kind of dual-clutch transmission hydraulic test method, to improve the versatility of test-bed, reduces time, the money cost of test.
For achieving the above object, the invention provides following technological scheme:
A kind of dual-clutch transmission hydraulic test method comprises the following steps:
Gearshift as above is assembled into to hydraulic module;
Carry out hydraulic test, when the oil feed pump fuel feeding is sufficient, described outer oil drainage hole and described oil through directly are communicated with to fuel tank, when oil feed pump supplies shortage of oil, described outer oil drainage hole is communicated with and makes fluid flow back into hydraulic module with described oil through.
Beneficial effect of the present invention is:
Respectively corresponding each the different gears of a plurality of gear selecting holes, stir shifting disc, select variant gear selecting hole and be communicated with at gear oil inlet hole oil circuit, other gear selecting hole is communicated with at the gear oil groove with non-, namely simulated the gearshift situation of different gears, and with the inner chamber of gearshift cavity volume simulation range piston cylinder, the process of filling, drain the oil in the simulation shift process, with a gearbox unit simulation, gone out the gearshift action of a plurality of synchronizers, make hydraulic unit no longer need by the real work structure, to be assembled on stand fully, system is simpler.And according to adopting gearshift of the present invention to carry out the method for hydraulic test, when finding oil feed pump for shortage of oil, by changing exterior line, to be back at the fluid that the gear gear is discharged other non-at the gear gear, make up the hydraulic pressure of oil feed pump, therefore needn't change oil feed pump or test-bed, improve the stand versatility, reduce the loss of time and money.
Further, between pipe part and shifting disc, there is position structure, neither affect the rotation of shifting disc, shifting disc can be remained on to each gear chosen position again, make to test more convenient.
Further, with bolts between shifting disc and core components, be convenient to installation and removal.
Further, baffle ring and snap ring, shifting disc three can either limit the axial position between core components, pipe part, make again whole gearshift assembling simple.
The accompanying drawing explanation
Next in connection with accompanying drawing, specific embodiments of the invention are described in further detail, wherein:
Fig. 1 is the structural drawing of the gearshift of embodiments of the invention;
Fig. 2 is the plan view of the core components of embodiments of the invention;
Fig. 3 is the sectional view along the A-A line in Fig. 2;
Fig. 4 is the sectional view along the B-B line in Fig. 3;
Fig. 5 be core components in Fig. 2 after the arrow C direction half-twist in Fig. 4, be similar to the sectional view of Fig. 3;
Fig. 6 is the plan view of the pipe part of embodiments of the invention;
Fig. 7 is the sectional view along the D-D line in Fig. 6;
Fig. 8 is the sectional view along the E-E line in Fig. 7;
Fig. 9 is the left view of the pipe part of embodiments of the invention;
Figure 10 is the left view of the shifting disc of embodiments of the invention;
Figure 11 is the sectional view along the F-F line in Figure 10;
Figure 12 is the left view of the baffle ring of embodiments of the invention;
Figure 13 is the sectional view along the G-G line in Figure 12.
description of symbols in upper figure: gearshift 100, shifting disc 1, pipe part 2, baffle ring 3, plug 4, snap ring 5, core components 6, spring 7, ball 8, cone groove 9, the first logical oil ring groove 10, bolt hole 11, the first gearshift cavity volume 12, the second gearshift cavity volume 13, first at gear oil inlet hole 14, first is non-at gear oil groove 15, first row oil ring groove 16, the first interior oil drainage hole 161, the first connecting groove 101, second at gear oil inlet hole 17, second is non-at gear oil groove 18, second row oil ring groove 19, the second interior oil drainage hole 191, the second logical oil ring groove 40, the second connecting groove 401, draw-in groove 20, bolt hole 21, the first gear selecting hole 22, the first oil through 23, the first outer oil drainage hole 24, the second outer oil drainage hole 25, the second oil through 26, the second gear selecting hole 27, bolt hole 28, gearshift pin-and-hole 29, bolt hole 30, bolt hole 31.
Embodiment
In ensuing description, the present embodiment is to have the reverse gear dual-clutch transmission of totally eight gears of one to seven gear forward gear and and gearshift is described as example take common, but this can not be regarded as limitation of the invention, those of ordinary skills can imagine at an easy rate, for adapting to the gear of varying number, the quantity of the cavity volume of shifting gears in the present embodiment, gear selecting hole can be increased or reduce.
With reference to figure 1, the dual-clutch transmission hydraulic test comprises the parts such as shifting disc 1, pipe part 2, baffle ring 3, plug 4, snap ring 5, core components 6, spring 7 and ball 8 with gearshift 100, and each assembling parts together.Wherein, core components 6 and pipe part 2 coaxial packages together, as the execution architecture of main simulation gearshift.Shifting disc 1 is fixedly connected with to drive relative pipe part 2 rotations of core components 6 with core components 6, realizes the simulation gearshift.Baffle ring 3 and snap ring 5 are be used to realizing the axially locating between core components 6 and pipe part 2, certainly, those of ordinary skills also can imagine at an easy rate and other orientation type, but the angle from simple installation, the orientation type of the present embodiment has more advantage, and this will be described below.Plug 4 is at closed at both ends first gearshift cavity volume 12 and the second gearshift cavity volume 13, or, two gearshift cavity volumes 12,13 also can by other suitable form sealing or with other form for example the 3D printing technique directly process and do not need independent plug 4.
With reference to figure 2, on the outer wall of visible core components 6, be processed with a plurality of oil grooves and draw-in groove, comprise that first is non-non-at gear oil groove the 18, second logical oil ring groove 40, the second connecting groove 401, second row oil ring groove 19, draw-in groove 20 at gear oil groove 15, the first logical oil ring groove 10, the first connecting groove 101, first row oil ring groove 16, second.Wherein, first non-ly is communicated with by the first connecting groove 101 with the first logical oil ring groove 10 at gear oil groove 15, and second non-ly leads to oil ring groove 40 and be communicated with by the second connecting groove 401 keeping off oil groove 18 and second, and draw-in groove 20 is be used to installing snap ring 5.
With reference to figure 3, the inside of core components 6 has the first gearshift cavity volume 12 and the second gearshift cavity volume 13, be used to the cavity volume of simulating synchronizer range piston cylinder and fill, the tapping process.
With reference to figure 4, visible first gear oil inlet hole 14 with first non-at gear oil groove 15 with circle but be not communicated with, similarly, second is non-also same round but be not communicated with at gear oil groove 18 with second at gear oil inlet hole 17.
With reference to figure 5, visible first is communicated with the first gearshift cavity volume 12 at gear oil inlet hole 14, and second is communicated with the second gearshift cavity volume 13 at gear oil inlet hole 17.Simultaneously, in first row oil ring groove 16, process the first interior oil drainage hole 161 that is communicated with the first gearshift cavity volume 12, in second row oil ring groove 19, processed the second interior oil drainage hole 191.
With reference to figure 6, pipe part 2 has the first gear selecting hole 22, the outer oil drainage hole 25 of the outer oil drainage hole 24, second of the first oil through 23, first, the second oil through 26, the second gear selecting hole 27.
With reference to figure 7, on pipe part 2, also has bolt hole 28, for gearshift 100 is installed to testboard bay.At the right-hand member of pipe part 2, have gearshift pin-and-hole 29, for spring 7 and the ball 8 that holds Fig. 1.
With reference to figure 8, the second gear selecting holes 27, there are four, respectively corresponding two, four, six, the hydraulic circuit that reverses gear.Equally, the first gear selecting hole 22 is also four (not shown in detail), respectively the hydraulic circuit of corresponding one, three, five, seven gears.Four the first gear selecting holes 22 arrange with circle, and namely the axes intersect in each hole is in a bit; Four the second gear selecting holes 27 also arrange with circle, and the axes intersect in each hole is in a bit.
With reference to figure 9, at the left end of pipe part 2, have two bolts hole 30, be used to baffle ring 3 is installed.
In conjunction with Figure 10, Figure 11, shifting disc 1 axially has cone groove 9, for positioning pin hole 19 in spring 7 and ball 8 coordinate the gear positions that keeps shifting disc 1.Shifting disc radially has bolt hole 11, for the bolt with core components 6, is connected.
In conjunction with Figure 12,13, on visible baffle ring 3, axially have bolt hole 31.
Refer again to Fig. 1, the installation process of gearshift 100 is: at first the bolt hole of shifting disc 1 11 is alignd with the bolt hole 21 of core components 6, be screwed into bolt shifting disc 1 and core components 6 are secured together, certainly, shifting disc 1 can also be secured together by modes such as welding with core components 6; Then, in the positioning pin hole 29 of pipe part 2, pack into successively spring 7 and ball 8, then be set in together core components 6 Inserting Tube parts 2 by them, and shifting disc 1 withstands ball 8 simultaneously; Then, at an end relative with shifting disc 1, snap ring 5 is snapped in to the draw-in groove 20 of core components 6; Finally, by the bolt hole 30 of the bolt hole of baffle ring 3 31 with pipe part 2, thereby be screwed into bolt, baffle ring 3 is installed on pipe part 2.From the above, between whole gearshift 100 each parts, assemble very convenient.
The working procedure of gearshift 100 is: suppose in simulation when the gear gear is a gear, rotation shifting disc 1 aligns the first the first gear selecting hole 22 that connects a gear oil circuit in four the first gear selecting holes 22 of gear oil inlet hole 14 and pipe part 2 of core components 6 to be communicated with, and other three the first gear selecting holes 22 are non-ly to be communicated with keeping off oil groove 15 with first at this moment.At this moment, one gear is at gear, fluid enters the first gearshift cavity volume 12 from the first gear selecting hole 22, first of a corresponding gear at gear oil inlet hole 14, by the first interior oil drainage hole 161, the outer oil drainage hole 24 of first row oil ring groove 16, first, discharge again, and three, five, seven non-gears, three gear fluid enters first non-at gear oil groove 15 from the first gear selecting holes 22 of corresponding three, five, seven gears, then discharges through the first logical oil ring groove 10, the first oil through 23, and simulation one gear carries out hydraulic test.Simulation three gears are in when gear, rotation shifting disc 1, and the first gear selecting holes 22 that make to connect three gear oil circuits are communicated with at gear oil inlet hole 14 with first, other non-ly is communicated with at gear oil groove 15 with first, simulates three and keep off shifting gears and carries out hydraulic test.The second gear selecting hole 27 is simulated respectively two, four, six, is reversed gear, and working principle is same as described above.
When testing, if the oil feed pump (not shown) fuel feeding abundance of stand, the outer oil drainage hole 25 of the first outer oil drainage hole 24, second, the first oil through 23 and the second oil through 26 directly are communicated with the fuel tank (not shown) of stand, make fluid return to fuel tank and get final product.If the oil feed pump of stand is for shortage of oil, change outside oil circuit, the first outer oil drainage hole 24 is communicated with the first oil through 23, the second outer oil drainage hole 25 is communicated with the second oil through 26, make through throttle orifice (size in hole can be determined according to the reality magnitude of back pressure of shifting gears), by first, second oil through 23,26, to be back to hydraulic module at the fluid of gear gear, guarantee the fuel feeding abundance of hydraulic module.
Although the present invention is described in conjunction with above embodiment, the present invention is not limited to above-described embodiment.Those of ordinary skills can easily modify to it and change, but do not leave essence design of the present invention and scope.
Claims (5)
1. dual-clutch transmission hydraulic test gearshift comprises:
Coaxial package core components and pipe part together;
With described core components, be fixedly connected with to drive the shifting disc that described core components rotates relative to described pipe part;
It is characterized in that:
Described core components has the gearshift cavity volume, be communicated with described gearshift cavity volume the gear oil inlet hole, with described at the gear oil inlet hole with circle but disconnected non-the gear oil groove, with the described non-interior oil drainage hole that is communicated with described gearshift cavity volume in keeping off logical oil ring groove, oil extraction annular groove and the oil extraction annular groove that oil groove is communicated with;
Described pipe part has a plurality of gear selecting holes of oil through, outer oil drainage hole, same circle setting;
Described core components can be rotated to select one in described a plurality of gear selecting hole and be communicated with at the gear oil inlet hole with described, and other gear selecting hole non-ly is communicated with at the gear oil groove with described, and simultaneously described oil through is communicated with described logical oil ring groove maintenance, described outer oil drainage hole is communicated with described oil extraction annular groove maintenance.
2. dual-clutch transmission hydraulic test gearshift according to claim 1, it is characterized in that, described pipe part end has the gearshift pin-and-hole, inside establishes spring and ball, described shifting disc has the cone groove, and the described ball of described spring compressing heads into described cone groove so that described shifting disc is located.
3. dual-clutch transmission hydraulic test gearshift according to claim 1, is characterized in that, described shifting disc is fixedly connected with described core components by bolt.
4. dual-clutch transmission hydraulic test gearshift according to claim 1, is characterized in that, at an end relative with described shifting disc, has the baffle ring that is arranged on described pipe part and be arranged on the snap ring on described core components.
5. a dual-clutch transmission hydraulic test method, is characterized in that, comprises the following steps:
Gearshift as described as any one in claim 1 to 4 is assembled into to hydraulic module;
Carry out hydraulic test, when the oil feed pump fuel feeding is sufficient, described outer oil drainage hole and described oil through directly are communicated with to fuel tank, when oil feed pump supplies shortage of oil, described outer oil drainage hole is communicated with and makes fluid flow back into hydraulic module with described oil through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310357010.6A CN103398046B (en) | 2013-08-16 | 2013-08-16 | Gear shifting device and testing method for hydraulic test of automatic double clutch gearbox |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310357010.6A CN103398046B (en) | 2013-08-16 | 2013-08-16 | Gear shifting device and testing method for hydraulic test of automatic double clutch gearbox |
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| CN103398046A true CN103398046A (en) | 2013-11-20 |
| CN103398046B CN103398046B (en) | 2015-07-08 |
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| CN201310357010.6A Active CN103398046B (en) | 2013-08-16 | 2013-08-16 | Gear shifting device and testing method for hydraulic test of automatic double clutch gearbox |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358745A (en) * | 2014-09-30 | 2015-02-18 | 宁波爱理科机器人科技有限公司 | Hydraulic module test equipment assembly |
| CN104358745B (en) * | 2014-09-30 | 2017-01-04 | 宁波爱理科机器人科技有限公司 | Hydraulic module test equipment assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3322245A (en) * | 1964-06-24 | 1967-05-30 | Williams Holdings Ltd Edward | Fluid pressure controls for transmission, clutch and brake |
| US3391767A (en) * | 1966-01-06 | 1968-07-09 | Int Harvester Co | Hydraulic pressure control system for clutches |
| EP0656493A1 (en) * | 1993-12-03 | 1995-06-07 | General Motors Corporation | Transmission selector valve |
| CN101900172A (en) * | 2009-06-01 | 2010-12-01 | 福特全球技术公司 | Dual-stage regulator valve assembly |
| CN102141148A (en) * | 2010-01-11 | 2011-08-03 | 通用汽车环球科技运作有限责任公司 | Hydraulic control systems for dual clutch transmissions |
| CN102145653A (en) * | 2010-02-08 | 2011-08-10 | 沈勇 | Hydraulic control valve of transmission clutch for automatic transmission |
| CN102944420A (en) * | 2012-11-29 | 2013-02-27 | 吉林大学 | Dual-clutch automatic transmission hydraulic module performance test platform and method |
| CN203404165U (en) * | 2013-08-16 | 2014-01-22 | 安徽江淮汽车股份有限公司 | Gear shifting device for testing hydraulic pressure of double clutch automatic gear box |
-
2013
- 2013-08-16 CN CN201310357010.6A patent/CN103398046B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3322245A (en) * | 1964-06-24 | 1967-05-30 | Williams Holdings Ltd Edward | Fluid pressure controls for transmission, clutch and brake |
| US3391767A (en) * | 1966-01-06 | 1968-07-09 | Int Harvester Co | Hydraulic pressure control system for clutches |
| EP0656493A1 (en) * | 1993-12-03 | 1995-06-07 | General Motors Corporation | Transmission selector valve |
| CN101900172A (en) * | 2009-06-01 | 2010-12-01 | 福特全球技术公司 | Dual-stage regulator valve assembly |
| CN102141148A (en) * | 2010-01-11 | 2011-08-03 | 通用汽车环球科技运作有限责任公司 | Hydraulic control systems for dual clutch transmissions |
| CN102145653A (en) * | 2010-02-08 | 2011-08-10 | 沈勇 | Hydraulic control valve of transmission clutch for automatic transmission |
| CN102944420A (en) * | 2012-11-29 | 2013-02-27 | 吉林大学 | Dual-clutch automatic transmission hydraulic module performance test platform and method |
| CN203404165U (en) * | 2013-08-16 | 2014-01-22 | 安徽江淮汽车股份有限公司 | Gear shifting device for testing hydraulic pressure of double clutch automatic gear box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358745A (en) * | 2014-09-30 | 2015-02-18 | 宁波爱理科机器人科技有限公司 | Hydraulic module test equipment assembly |
| CN104358745B (en) * | 2014-09-30 | 2017-01-04 | 宁波爱理科机器人科技有限公司 | Hydraulic module test equipment assembly |
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| CN103398046B (en) | 2015-07-08 |
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