CN102797768B - Hydraulic clutch executing mechanism of AMT (automatic mechanical transmission) - Google Patents
Hydraulic clutch executing mechanism of AMT (automatic mechanical transmission) Download PDFInfo
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- CN102797768B CN102797768B CN201210308085.0A CN201210308085A CN102797768B CN 102797768 B CN102797768 B CN 102797768B CN 201210308085 A CN201210308085 A CN 201210308085A CN 102797768 B CN102797768 B CN 102797768B
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Abstract
The invention provides a hydraulic clutch executing mechanism of an AMT (automatic mechanical transmission). The hydraulic clutch executing mechanism comprises a hydraulic cylinder body (6), a first piston (15), a piston rod fixed base (14), a second piston (12), a lining (11), a flange (9), a return spring (10), a first piston rod (2), a second piston rod (8) and a clutch position sensor (7), wherein the first piston (15) is arranged in the hydraulic cylinder body (6), the piston rod fixed base (14) is fixed at the right end of the first piston (15), the second piston (12) is arranged on the right side of the piston rod fixed base (14), the lining (11) is fixedly connected with the right side of the second piston (12), the flange (9) is fixed at the right end of the hydraulic cylinder body (6), the return spring (10) is arranged between the second piston (12) and the flange (9), one end of the first piston rod (2) is provided with a spherical head (1), the other end of the first piston rod (2) is provided with the piston rod fixed base (14), the second piston rod (8) is fixedly connected with the lining (11) and passes through the flange (9); and the clutch position sensor (7) is driven by the second piston rod (8). The hydraulic clutch executing mechanism disclosed by the invention has the advantages of stable transmission and simple and compact structure.
Description
Technical field
The present invention relates to a kind of hydraulic clutch actuator, particularly the hydraulic clutch actuator of a kind of AMT.
Background technique
AMT(automatic speed changer for machine) with distinctive economy, convenience, safety, travelling comfort and enjoy the welcome of all drivers, become the focus of various countries' exploitation.In AMT system, clutch actuating mechanism, for performing clutch separation or combination, is a kind of important mechanism.
General clutch actuating mechanism, employing be worm and gear or gear-driven mechanical realization, there are transmission complexity, component compared with the complicated and problem such as difficulty of processing is large, transmission stability is poor.In Chinese Patent Application No.: in 201110280677.1, disclose a kind of pneumatic type clutch actuator, although its transmission is simple, due to the compressibility of gas, this mechanism still cannot solve stable drive sex chromosome mosaicism well.
Summary of the invention
The object of the present invention is to provide the clutch actuating mechanism of a kind of AMT of stable drive, and its structure is simple, compact.
For achieving the above object, the invention provides following technological scheme:
A hydraulic clutch actuator of AMT, comprising:
Hydraulic cylinder (6), is provided with means of deflation (4) and oil inlet and outlet (5);
The first piston (15) that described hydraulic cylinder (6) is inner, its two ends are respectively arranged with primary cup (16) and secontary cup (13);
Be fixed on the piston rod fixed base (14) of described first piston (15) right-hand member;
Second piston (12) on piston rod fixed base (14) right side;
Be fixedly connected on the lining (11) on described second piston (12) right side;
Be fixed on the flange (9) of described hydraulic cylinder (6) right-hand member;
Be positioned at the return spring (10) between described second piston (12) and described flange (9);
One end is provided with bulb (1), the first piston bar (2) that the other end is fixedly connected with described piston rod fixed base (14);
Be fixedly connected with described lining (11) and pass second piston rod (8) of described flange (9);
By the clutch position sensor (7) that described second piston rod (8) drives.
Selectively, described clutch position sensor (7) is arranged on described flange (9).
Selectively, described clutch position sensor (7) is made up of eccentric parallels (23), magnet (22), gauge head (19), lining (21) and dust-proof sleeve pipe (20), one end of described magnet (22) is resisted against on described eccentric parallels (23), the other end points to described gauge head (19), described lining (21) is enclosed within described magnet (22) outside, and described dust-proof lining (20) is enclosed within described eccentric parallels (23), described magnet (22) and described lining (21) outside.
Selectively, described clutch position sensor (7) is driven by the connecting rod (18) be connected with described second piston rod (8).
Selectively, the left end of described hydraulic cylinder (6) is provided with dust-proof cover (3).
Selectively, outside described clutch position sensor (7), protective cover is installed.
Owing to adopting hydraulic transmission, therefore transmission process is steady.Further, owing to have employed single-acting double-piston rod-type oil hydraulic cylinder, first piston bar (2) performs clutch separation and combination, and the second piston rod (8) driving clutch position transducer (7), therefore structure is simple.
Further, because clutch position sensor (7) is arranged on flange (9), therefore compact structure.
Further, owing to having installed dust-proof cover (3), avoided hydraulic oil and be subject to dust pollution.
Accompanying drawing explanation
Next will be described in further detail embodiments of the invention by reference to the accompanying drawings, wherein:
Fig. 1 is the hydraulic clutch actuator schematic diagram of the AMT of embodiments of the invention;
Fig. 2 is the hydraulic clutch actuator sectional drawing of the AMT of embodiments of the invention;
Fig. 3 is the schematic diagram after clutch position sensor in Fig. 1 removes protective cover;
Fig. 4 is the A-A sectional view of Fig. 1.
Embodiment
Hydraulic clutch actuator with reference to figure 1, AMT forms primarily of cylinder part I and clutch position sensor parts II.
Fig. 2 shows the hydraulic clutch actuator sectional drawing of the AMT of embodiments of the invention, mainly indicates the detailed construction of cylinder part I.On hydraulic cylinder (6), be provided with means of deflation (4) and oil inlet and outlet (5).Means of deflation (4) is for discharging the air in hydraulic cylinder (6), and oil inlet and outlet (5) is for the turnover of hydraulic oil in actuator's working procedure.The left end of preferred hydraulic cylinder (6) is provided with dust-proof cover (3), can effectively prevent dust from entering hydraulic cylinder (6) inner, contaminated liquid force feed.The right-hand member of hydraulic cylinder (6) is provided with flange (9), closes hydraulic cylinder (6).According in Fig. 1 by left-to-right order, hydraulic cylinder (6) inside is provided with successively: first piston (15), its central openings, left end and right-hand member are respectively arranged with primary cup (16) and secontary cup (13), forming airtight cavity for making between hydraulic cylinder (6) and first piston (15), holding hydraulic oil.Piston rod fixed base (14), is fixed on the right-hand member of first piston (15).The right side of piston rod fixed base (14) nestles up the second piston (12).The right side of the second piston (12) is fixedly connected with lining (11).In cavity between the second piston (12) and flange (9), return spring (10) is installed.At the left end of hydraulic cylinder (6), the left end of first piston bar (2) is bulb (1), for connecting clutch separation rocking arm, the other end relative with bulb (1) enters the central hole of first piston (15) through the left end of dust-proof cover (3) and hydraulic cylinder (6), and is fixedly connected with piston rod fixed base (14).At the right-hand member of hydraulic cylinder (6), lining (11) is fixedly connected with one end of the second piston rod (8).The other end of the second piston rod (8) passes flange (9), for driving clutch position transducer (7).Can find out, cylinder part I is a kind of single-acting double-piston rod-type oil hydraulic cylinder.Preferred clutch position sensor (7) is arranged on flange (9), can make more compact structure like this.Certainly, coordinate multi-form sensor, clutch position sensor (7) also can be installed in other position.
Fig. 3 is the schematic diagram after clutch position sensor in Fig. 1 removes protective cover, and which show the second piston rod (8) is how driving clutch position transducer (7).Those of ordinary skill in the art can imagine, protective cover is a kind of common protective housing, and it can be the shape of any appropriate, no longer describes in detail in embodiments of the invention, therefore also marks in accompanying drawing.Second piston rod (8) connects connecting rod (18), the eccentric parallels (23) of the clutch position sensor (7) shown in connecting rod (18) connection diagram 4.When the second piston rod (8) left and right straight line motion, connecting rod (18) swings, and drives eccentric parallels (23) to rotate.Because the motion of the second piston rod (8) is synchronous with the motion of first piston bar (2), and first piston bar (2) connects clutch separation rocking arm, therefore the position of the second piston rod (8) can reflect clutch position, thus by connecting rod (18), clutch position signal can be passed to sensor (7).Certainly, when adopting the sensor of other form as sensor, second piston rod (8) also directly or can pass through the indirect driving sensor of other element (7), and do not need connecting rod (18), such as the end of the second piston rod (8) directly can install magnet, and now the gauge head of sensor (7) is relative with the end of piston rod (8).
Fig. 4 is the A-A sectional view of Fig. 1, shows the structure of the clutch position sensor (7) adopted in embodiments of the invention.One end of magnet (22) is resisted against on eccentric parallels (23), and the other end points to gauge head (19).Lining (21) is enclosed within described magnet (22) outside, carries out straight reciprocating motion for guiding magnet 22.Dust-proof lining (20) is enclosed within described eccentric parallels (23), magnet (22) and lining (21) outside.Gauge head (19), according to the change of magnet (22) distance corresponding thereto, outwards outputs signal.Those of ordinary skill in the art can imagine easily, and clutch position sensor (7) also can adopt the sensor of other form such as electromagnetism, photoelectricity.Can find out from the above description, clutch position sensor (7) being meant to by the second piston rod (8) " driving ", the second piston rod (8) can, according to its change in location, make clutch position sensor (7) produce the signal of reflection clutch position.
When needs clutch separation, high pressure oil enters cavity airtight between hydraulic cylinder (6) and first piston (15) from oil inlet and outlet (5), promote first piston (15) to move to the right, thus pull first piston bar (2) to move to the right by bolt shank fixed base (14), because bulb (1) connects clutch separation rocking arm, achieve clutch separation.Meanwhile, when first piston (15) moves to the right, promote the second piston (12) and move to the right, and then promotion the second piston rod (8) is moved to the right.Now, return spring (10) forced compression.Can find out from Fig. 3, now connecting rod (18) swings to the right, then can find out from Fig. 4, and now eccentric parallels (23) turns clockwise, and magnet (22) slides towards the direction away from gauge head (19) in lining (21).
When needs clutch in conjunction with time, such as when gearshift after, former length replied by return spring 10, and promote the second piston (12), piston rod fixed base (14) and first piston (15) and be moved to the left, hydraulic oil refluxes from oil inlet and outlet (5).Therefore, first piston bar (2) is to left movement, and bulb (1) promotes clutch separation rocking arm, and clutch is combined.Meanwhile, the second piston rod (8) is moved to the left, and connecting rod (18) swings to the left, and eccentric parallels (23) is rotated counterclockwise, and magnet (22) slides towards near the direction of gauge head (19) in lining (21).
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and only by the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (5)
1. a hydraulic clutch actuator of AMT, comprising:
Hydraulic cylinder (6), is provided with means of deflation (4) and oil inlet and outlet (5);
The first piston (15) that described hydraulic cylinder (6) is inner, its two ends are respectively arranged with primary cup (16) and secontary cup (13);
Be fixed on the piston rod fixed base (14) of described first piston (15) right-hand member;
Second piston (12) on piston rod fixed base (14) right side;
Be fixedly connected on the lining (11) on described second piston (12) right side;
Be fixed on the flange (9) of described hydraulic cylinder (6) right-hand member;
Be positioned at the return spring (10) between described second piston (12) and described flange (9);
One end is provided with bulb (1), the first piston bar (2) that the other end is fixedly connected with described piston rod fixed base (14);
Be fixedly connected with described lining (11) and pass second piston rod (8) of described flange (9);
By the clutch position sensor (7) that described second piston rod (8) drives;
Described clutch position sensor (7) is made up of eccentric parallels (23), magnet (22), gauge head (19), lining (21) and dust-proof sleeve pipe (20), one end of described magnet (22) is resisted against on described eccentric parallels (23), the other end points to described gauge head (19), described lining (21) is enclosed within described magnet (22) outside, and described dust-proof lining (20) is enclosed within described eccentric parallels (23), described magnet (22) and described lining (21) outside.
2. the hydraulic clutch actuator of AMT according to claim 1, is characterized in that, described clutch position sensor (7) is arranged on described flange (9).
3. the hydraulic clutch actuator of AMT according to claim 1, is characterized in that, described clutch position sensor (7) is driven by the connecting rod (18) be connected with described second piston rod (8).
4. the hydraulic clutch actuator of AMT according to claim 1, is characterized in that, the left end of described hydraulic cylinder (6) is provided with dust-proof cover (3).
5. the hydraulic clutch actuator of AMT according to claim 1, is characterized in that, described clutch position sensor is provided with protective cover outside (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308085.0A CN102797768B (en) | 2012-08-27 | 2012-08-27 | Hydraulic clutch executing mechanism of AMT (automatic mechanical transmission) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308085.0A CN102797768B (en) | 2012-08-27 | 2012-08-27 | Hydraulic clutch executing mechanism of AMT (automatic mechanical transmission) |
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| Publication Number | Publication Date |
|---|---|
| CN102797768A CN102797768A (en) | 2012-11-28 |
| CN102797768B true CN102797768B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210308085.0A Active CN102797768B (en) | 2012-08-27 | 2012-08-27 | Hydraulic clutch executing mechanism of AMT (automatic mechanical transmission) |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593553B (en) * | 2013-10-02 | 2019-03-15 | 舍弗勒技术股份两合公司 | Piston-Cylinder Assembly |
| DE102017117279B3 (en) * | 2017-07-31 | 2018-07-26 | Schaeffler Technologies AG & Co. KG | Sensor integration for a clutch release |
| CN108533638B (en) * | 2018-04-11 | 2019-10-01 | 武汉理工大学 | Automatic clutch operating mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3807055B2 (en) * | 1997-10-06 | 2006-08-09 | ボッシュ株式会社 | Clutch booster |
| DE20208568U1 (en) * | 2002-06-03 | 2002-08-29 | FTE automotive GmbH, 96106 Ebern | hydraulic cylinders |
| CN100350167C (en) * | 2002-09-19 | 2007-11-21 | 卢克摩擦片和离合器两合公司 | Apparatus and method for avoiding reference position move |
| CN100510454C (en) * | 2006-12-09 | 2009-07-08 | 奇瑞汽车股份有限公司 | Clutch position sensor connector for automobile automatic gearshift |
| CN201705908U (en) * | 2010-05-18 | 2011-01-12 | 贵州红林机械有限公司 | Clutch executor assembly for automobile automatic transmission |
| CN202215732U (en) * | 2011-08-31 | 2012-05-09 | 武汉理工通宇新源动力有限公司 | Position on-off gear sensor in automatic transmission |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |