CN102493913B - Shell turn type inner-curve radial plunger hydraulic motor - Google Patents
Shell turn type inner-curve radial plunger hydraulic motor Download PDFInfo
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- CN102493913B CN102493913B CN201110412911.1A CN201110412911A CN102493913B CN 102493913 B CN102493913 B CN 102493913B CN 201110412911 A CN201110412911 A CN 201110412911A CN 102493913 B CN102493913 B CN 102493913B
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Abstract
The invention relates to a shell turn type inner-curve radial plunger hydraulic motor, which comprises a machine casing composed of a front cover, a stator and a rear cover. The machine casing is provided with an oil through shaft, a rotor and an oil distribution disc. The shell turn type inner-curve radial plunger hydraulic motor is characterized in that the oil distribution disc is sleeved on the oil through shaft and fixed with an inner scapula of the rear cover, a fixed brake seat is fixed on the periphery of the oil through shaft, the machine casing can rotate around the axis relative to the oil through shaft, and a plurality of dynamic friction sheets and a plurality of static friction sheets which are arranged at mutual intervals and in an overlaying mode are sleeved on the periphery of the fixed brake seat. A plunger is further arranged in the rear cover and sleeved on the fixed brake seat and can glide in the axial direction, a spring enabling the plunger to keep the mutual tight compression between the dynamic friction sheets and the static friction sheets is further arranged in the rear cover, a sealed oil cavity is formed between the plunger and fixed brake seat, and the fixed brake seat is provided with an oil hole communicated with the oil. The shell turn type inner-curve radial plunger hydraulic motor is provided with a brake structure organically combined with the hydraulic motor, thereby being compact and reasonable in structure.
Description
Technical field
The present invention relates to a kind of shell turn type inner-curve radial plunger hydraulic motor.
Background technique
Inner curve formula radial plunger type motor mostly is pivoting, namely cylinder body is relatively fixing, transmission shaft opposing cylinder rotates and output torque and rotating speed, its structure comprises cover plate, bonnet, the cylinder body that stator and protecgulum are formed, protecgulum and bonnet are fixed on the rear and front end of stator, transmission shaft and pintle are installed in the cavity of cylinder body, two rolling bearings that the front portion of transmission shaft is arranged by time interval are bearing on protecgulum, pintle is arranged in bonnet, the outside Driving Torque of protecgulum and rotating speed is stretched out outside the front end of transmission shaft, transmission shaft is also equipped with rotor, synchronous rotary is realized by spline joint between transmission shaft and rotor, on rotor flank, circumferentially interval is furnished with the plunger hole of multiple radial direction setting, plunger and roller are installed in each plunger hole, the inner circle wall of roller and stator is conflicted, the inner circle wall of stator is wavy, the end face of rotor is provided with the passage of multiple connection pintle, the number of passage is identical with the number of plunger hole.
This inner curve formula radial piston hydraulic motor working principle is as follows: oil-feed process, when pressure oil is through the oil inlet passage of oil distributing shaft, when epitrochanterian passage enters the bottom of the plunger in plunger hole, be pushed at the effect lower plunger of pressure oil, move along plunger hole to stator direction, power is passed to roller by plunger, roller conflict stator inner peripheral surface upper recess produce tangential force, the reaction force of stator to plunger produces torque to rotor, oil return process, when rotor turns is to when making roller be positioned at the low spot of stator inner peripheral surface recess, the oil inlet passage of epitrochanterian passage and pintle is closed, when roller cross recess low spot roll along protuberance direction time, the oil discharge passage of oil distributing shaft communicates with plunger hole through epitrochanterian passage, plunger pushes back by the camming surface of stator inner circle wall, the internal volume of plunger hole reduces and pressure oil is entered the oil discharge passage discharge of epitrochanterian passage and oil distributing shaft, so constantly interval circulation, final drive transmission shaft rotates and outside Driving Torque and rotating speed.
A kind of pivoting inner curve radial plunger type motor as disclosed in the application number Chinese invention patent " inner curve multiple radial plunger type motor " that is ZL201010197277.X (publication number is CN101858300A).
Market also there is shell rotary type inner curve hydraulic motor, namely central shaft is relatively fixing, cylinder body relative centre axle rotates, a kind of shell rotary type inner curve hydraulic motor as disclosed in the patent No. Chinese utility model patent " shell rotary type inner curve hydraulic motor " that is ZL03226808.4 (notification number is CN2619064Y).
The working principle of pivoting inner curve radial plunger type motor and shell turn type inner-curve radial plunger hydraulic motor is substantially similar, and respectively has pluses and minuses.But existing no matter which kind of does not all arrange brake portion, as this inner curve radial plunger type motor is applied in machinery, also need additional configuration brake structure, break separates with inner curve radial plunger type motor and uses and install, and cost is high, fitting operation is inconvenient.
Summary of the invention
Technical problem to be solved by this invention provides a kind of shell turn type inner-curve radial plunger hydraulic motor being provided with brake structure for above-mentioned prior art present situation, and this brake structure and oil hydraulic motor organically combine, rational in infrastructure compact.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of shell turn type inner-curve radial plunger hydraulic motor, comprise by protecgulum, the casing of stator and bonnet composition, protecgulum and bonnet are fixed on the rear and front end of stator, casing is provided with logical oily axle, rotor and oil distribution casing, described rotor is fixed on to be thrown on oily axle, on rotor flank, circumferentially interval is furnished with the plunger hole of multiple radial direction setting, plunger and roller are installed in each plunger hole, the inner circle wall of roller and stator is conflicted, rotor is provided with the passage of number multiple and flow passage oil distribution casing on identical with plunger hole, it is characterized in that: described oil distribution casing is set on logical oily axle, the interior omoplate of oil distribution casing and bonnet is fixed together simultaneously, described logical oily axle is processed with the oil-feed runner and fuel-displaced runner that communicate with the runner on oil distribution casing, the periphery at logical oily axle rear portion is fixed with determines Brake Block, described casing can rotate around own axes relative to logical oily axle and rotor, described periphery of determining Brake Block is arranged with the multi-disc movable friction plate and static friction sheet that are spaced superposition setting, movable friction plate circumference is spacing in the endoporus of bonnet, the spacing periphery determining Brake Block of static friction sheet circumference, also piston is provided with in described bonnet, this piston sleeve is located to be determined on Brake Block and energy axial slip, described movable friction plate and static friction sheet are in bonnet between omoplate and piston, also be provided with in described bonnet and make piston keep spring movable friction plate and static friction sheet mutually compressed, described piston and determine to form closed oil pocket between Brake Block, determine Brake Block to be processed with the oilhole communicated with described oil pocket.
Owing to the radial dimension of casing certainly will being made to become large determining to install between Brake Block and bonnet endoporus friction plate, spacing between the side face position of logical oily axle and casing endoporus is large, as will be logical oily axle be directly installed in protecgulum by fore bearing, then need very large bearing, for making overall structure more reasonable, above-mentionedly determine Brake Block and be arranged in bonnet by rear bearing, described rotor has the ring-type assembly department extended forward, and this ring-type assembly department is arranged in protecgulum by fore bearing.Between the side face of the ring-type assembly department of rotor and the inner hole wall of protecgulum, spacing size is relatively reasonable, therefore rotor is by adopting fair-sized bearings in protecgulum.
The endoporus of above-mentioned rotor is by spline joint on logical oily axle, and the front end of described logical oily axle is provided with locking nut spacing for rotor axial.
Above-mentioned protecgulum, to be fixed together by many screws between stator and bonnet.
Be provided with hole back-up ring in above-mentioned bonnet, described spring supporting is between hole back-up ring and piston.Hole back-up ring is played a supporting role to spring, and for the installation of spring provides rational position, hole back-up ring is equivalent to the effect of spring seat.
Baffle ring is provided with between the above-mentioned macropore portion determining the outer circumferential face of Brake Block and the shoulder hole of piston, this baffle ring axial limiting is being determined on Brake Block, the endoporus of baffle ring and cylindrical respectively and determine Brake Block periphery and piston shoulder hole macropore portion between form liquid sealing, form liquid sealing between the macropore portion of the shoulder hole of described piston and the outer circumferential face determining Brake Block, described baffle ring, determine Brake Block and piston shoulder hole macropore portion between form described oil pocket.
The front end activity of above-mentioned logical oily axle passes protecgulum, and is provided with oil seal between the outer circumferential face of logical oily axle and the endoporus of protecgulum.The rear and front end of logical so oily axle all can be supported, and this oil hydraulic motor is particularly suitable on winch.
Above-mentioned logical oily axle has the central through bore axially running through its axle center.The installation shaft of winch can wear and be fixed on central through bore, be convenient on the installation winch by this oil hydraulic motor, in addition, can to ventilate body or liquid at central through bore, use in particular circumstances to facilitate, when this motor is used for the pick of rig brill, discharge underground water fast by this central through bore, when being used for rig when this motor and carrying out broken road surface at end installation breaker, pass into gas by this central through bore.
Compared with prior art, the invention has the advantages that: in this shell turn type inner-curve radial plunger hydraulic motor, have additional brake portion, under out-of-work state, the bonnet of each movable friction plate and static friction sheet and casing is pressed together by piston under the action of the spring, casing is stoped to rotate around own axes relative to logical oily axle, realize braking, provide a kind of shell turn type inner-curve radial plunger hydraulic motor with braking function, use the apparatus of this motor without the need to additional brake structure; And this brake structure is reasonable in design, the installing space for each friction plate is large, and the quantity that can increase friction plate makes braking torque increase, braking is reliable, because braking torque increases, provide condition for increasing input power, thus achieve larger casing Driving Torque.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of first embodiment of the invention;
Fig. 2 is the structure sectional view of second embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figure 1, be first embodiment of the present invention.
A kind of shell turn type inner-curve radial plunger hydraulic motor, comprise the casing assemblied by protecgulum 1, stator 2 and bonnet 3, protecgulum 1 and bonnet 3 are fixed on the rear and front end of stator 2, protecgulum 1, are fixed together by many screws 18 between stator 2 and bonnet 3.
Casing is provided with logical oily axle 4, rotor 5 and oil distribution casing 6, and rotor 5 is fixed on logical oily axle 4, and the endoporus of rotor 5 is by spline joint on logical oily axle 4, and the front end of logical oily axle 4 is provided with the locking nut 17 of rotor 5 axial limiting.On rotor 5 side face, circumferentially interval is furnished with the plunger hole 51 of multiple radial direction setting, plunger 7 and roller 8 are installed in each plunger hole 51, roller 8 is conflicted with the inner circle wall of stator 2, and rotor 5 is provided with the number multiple passages 52 that with runner 61 oil distribution casing on are communicated with identical with plunger hole 51.
Logical oily axle 4 is processed with the oil-feed runner 41 and fuel-displaced runner 42 that communicate with the runner 61 on oil distribution casing 6, oil distribution casing 6 is set on logical oily axle 4 and also and between logical oily axle 4 forms liquid sealing, oil distribution casing 6 is fixed together with the interior omoplate 31 of bonnet simultaneously, the periphery at logical oily axle 4 rear portion is fixed with determines Brake Block 9, leads to oily axle 4 and determines to be fixed by screws in together between Brake Block 9.
Determining Brake Block 9 is arranged in bonnet 3 by rear bearing 15, and rotor 5 has the ring-type assembly department 53 extended forward, and this ring-type assembly department 53 is arranged in protecgulum 1 by fore bearing 16, and such casing just can rotate around own axes relative to logical oily axle 4 and rotor 5.
The periphery of determining Brake Block 9 is arranged with the multi-disc movable friction plate 10 and static friction sheet 11 that are spaced superposition setting, movable friction plate 10 circumference is spacing in the endoporus of bonnet 3, the spacing periphery determining Brake Block 9 of static friction sheet 11 circumference, piston 12 is also provided with in bonnet 3, piston 12 is set in be determined on Brake Block 9 and energy axial slip, piston 12 and determine to form liquid sealing between Brake Block 9, movable friction plate 10 and static friction sheet 11 are in bonnet between omoplate 31 and piston 12, also be provided with in bonnet 3 and make piston 12 keep the spring 13 of movable friction plate 10 and static friction sheet 11 compression trend mutually, hole back-up ring 19 is provided with in bonnet 3, spring 13 is supported between hole back-up ring 19 and piston 12, spring 13 in the present embodiment is butterfly spring.
Piston 12 and determine to form closed oil pocket 14 between Brake Block 9, determines Brake Block 9 to be processed with the oilhole 91 communicated with oil pocket 14.Baffle ring 20 is provided with between the macropore portion determining the outer circumferential face of Brake Block 9 and the shoulder hole of piston 12, this baffle ring 20 axial limiting is being determined on Brake Block 9, the endoporus of baffle ring 20 and cylindrical respectively and determine Brake Block 9 periphery and piston 12 shoulder hole macropore portion between form liquid sealing, form liquid sealing between the macropore portion of the shoulder hole of piston 12 and the outer circumferential face determining Brake Block 9, baffle ring 20, determine Brake Block 9 and piston 12 shoulder hole macropore portion between form aforementioned oil pocket 14.
The working principle of this shell turn type inner-curve radial plunger hydraulic motor and process substantially identical with the multiple-action inner curved radial plunger type motor of pivoting, no longer set forth at this.
Braking process: each movable friction plate 10 and static friction sheet 11 are pressed together by piston 12 under spring 13 acts on, stops casing to rotate around own axes relative to logical oily axle 4, realizes braking; During releasing, hydraulic oil enters oil pocket 14 by oilhole 91, and by piston 12 pusher, each friction plate loses pressure, and loosen between multi-disc movable friction plate 10 and static friction sheet 11, casing can rotate freely.
This brake structure is reasonable in design, and the installing space for each friction plate is large, and the quantity that can increase friction plate makes braking torque increase, and braking is reliable, because braking torque increases, provides condition, thus achieve larger casing Driving Torque for increasing input power.
As shown in Figure 2, be second embodiment of the present invention,
The difference of the present embodiment and first embodiment is: the front end activity of logical oily axle 4 passes protecgulum 1, the rear and front end of logical so oily axle 4 all can be supported, this oil hydraulic motor is particularly suitable on winch, and is provided with oil seal 43 between the outer circumferential face of logical oily axle 4 and the endoporus of protecgulum 1.
Logical oily axle 4 has the central through bore 44 axially running through its axle center.The installation shaft of winch can wear and be fixed on central through bore, be convenient on the installation winch by this oil hydraulic motor, in addition, can to ventilate body or liquid at central through bore, use in particular circumstances to facilitate, when this motor is used for the pick of rig brill, discharge underground water fast by this central through bore, when being used for rig when this motor and carrying out broken road surface at end installation breaker, pass into gas by this central through bore 44.
Claims (7)
1. a shell turn type inner-curve radial plunger hydraulic motor, comprise by protecgulum (1), the casing that stator (2) and bonnet (3) form, protecgulum (1) and bonnet (3) are fixed on the rear and front end of stator (2), casing is provided with logical oily axle (4), rotor (5) and oil distribution casing (6), described rotor (5) is fixed on logical oily axle (4), on rotor (5) side face, circumferentially interval is furnished with the plunger hole (51) of multiple radial direction setting, plunger (7) and roller (8) are installed in each plunger hole (51), roller (8) is conflicted with the inner circle wall of stator (2), rotor (5) is provided with the number multiple passages (52) that with runner (61) oil distribution casing on are communicated with identical with plunger hole (51), it is characterized in that: described oil distribution casing (6) is set on logical oily axle (4), oil distribution casing (6) is fixed together with the interior omoplate (31) of bonnet simultaneously, described logical oily axle (4) is processed with the oil-feed runner (41) communicated with the runner (61) on oil distribution casing (6) and fuel-displaced runner (42), the periphery at logical oily axle (4) rear portion is fixed with determines Brake Block (9), casing can rotate around own axes relative to logical oily axle (4) and rotor (5), described periphery of determining Brake Block (9) is arranged with the multi-disc movable friction plate (10) and static friction sheet (11) that are spaced superposition setting, movable friction plate (10) circumference is spacing in the endoporus of bonnet (3), the spacing periphery determining Brake Block (9) of static friction sheet (11) circumference, piston (12) is also provided with in described bonnet (3), this piston (12) is set in determines Brake Block (9) upper also energy axial slip, described movable friction plate (10) and static friction sheet (11) are positioned between the omoplate (31) of bonnet and piston (12), also be provided with in described bonnet (3) and make piston (12) keep the spring (13) movable friction plate (10) and static friction sheet (11) mutually compressed, described piston (12) and determine to form closed oil pocket (14) between Brake Block (9), determine Brake Block (9) to be processed with the oilhole (91) communicated with described oil pocket (14),
Baffle ring (20) is provided with between the described macropore portion determining the outer circumferential face of Brake Block (9) and the shoulder hole of piston (12), this baffle ring (20) axial limiting is being determined on Brake Block (9), the endoporus of baffle ring (20) and cylindrical respectively and determine Brake Block (9) periphery and piston (12) shoulder hole macropore portion between form liquid sealing, liquid sealing is formed between the macropore portion of the shoulder hole of described piston (12) and the outer circumferential face determining Brake Block (9), described baffle ring (20), described oil pocket (14) is formed between the macropore portion determining the shoulder hole of Brake Block (9) and piston (12).
2. shell turn type inner-curve radial plunger hydraulic motor according to claim 1, it is characterized in that: describedly determine Brake Block (9) and be arranged in bonnet (3) by rear bearing (15), described rotor (5) has the ring-type assembly department (53) extended forward, and this ring-type assembly department (53) is arranged in protecgulum (1) by fore bearing (16).
3. shell turn type inner-curve radial plunger hydraulic motor according to claim 1, it is characterized in that: the endoporus of described rotor (5) is by spline joint on logical oily axle (4), and the front end of described logical oily axle (4) is provided with the locking nut (17) of rotor (5) axial limiting.
4. shell turn type inner-curve radial plunger hydraulic motor according to claim 1, is characterized in that: described protecgulum (1), be fixed together by many screws (18) between stator (2) and bonnet (3).
5. shell turn type inner-curve radial plunger hydraulic motor according to claim 1, it is characterized in that: be provided with hole back-up ring (19) in described bonnet (3), described spring (13) is supported between hole back-up ring (19) and piston (12).
6. the shell turn type inner-curve radial plunger hydraulic motor according to claim arbitrary in Claims 1 to 5, it is characterized in that: the front end activity of described logical oily axle (4) passes protecgulum (1), and be provided with oil seal (43) between the outer circumferential face of logical oily axle (4) and the endoporus of protecgulum (1).
7. shell turn type inner-curve radial plunger hydraulic motor according to claim 6, is characterized in that: described logical oily axle (4) has the central through bore (44) axially running through its axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412911.1A CN102493913B (en) | 2011-12-13 | 2011-12-13 | Shell turn type inner-curve radial plunger hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412911.1A CN102493913B (en) | 2011-12-13 | 2011-12-13 | Shell turn type inner-curve radial plunger hydraulic motor |
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| Publication Number | Publication Date |
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| CN102493913A CN102493913A (en) | 2012-06-13 |
| CN102493913B true CN102493913B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110412911.1A Active CN102493913B (en) | 2011-12-13 | 2011-12-13 | Shell turn type inner-curve radial plunger hydraulic motor |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216552B (en) * | 2013-05-06 | 2015-06-10 | 张庆冬 | Brake device |
| CN103434392A (en) * | 2013-06-26 | 2013-12-11 | 贵州大学 | Novel hydraulic automobile wheel |
| EP3460229B1 (en) * | 2016-11-18 | 2021-05-05 | Qinhuangdao Zenmax Hydraulic Equipments Co., Ltd. | Internally curved low-speed high-torque hydraulic motor with torque being output by means of rotation of housing |
| CN106495039B (en) * | 2016-12-26 | 2019-09-24 | 广东工业大学 | A kind of hydraulic wireline winch driving device |
| CN106988958B (en) * | 2017-04-05 | 2018-09-18 | 温州职业技术学院 | Low-speed big axial-piston hydraulic motor |
| CN107806391B (en) * | 2017-11-08 | 2023-10-31 | 南昌大学 | A radial hydraulic piston motor |
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|---|---|---|---|---|
| GB2086991A (en) * | 1980-08-26 | 1982-05-19 | Staffa Products Ltd | Improvements in and relating to hydraulic motors |
| US5697765A (en) * | 1993-04-13 | 1997-12-16 | Sauer Inc. | Hydraulic motor |
| CN2505648Y (en) * | 2001-09-26 | 2002-08-14 | 贺孝杰 | Cycloidal hydraulic motor with built-in mechanical brake |
| CN2619064Y (en) * | 2003-01-16 | 2004-06-02 | 株洲煤矿机械厂 | Shell rotary type inner curve hydraulic motor |
| CN101709685A (en) * | 2009-11-11 | 2010-05-19 | 宜昌市燕狮科技开发有限责任公司 | Radial plunger type multiple-action inner curved hydraulic motor |
| CN202326004U (en) * | 2011-12-13 | 2012-07-11 | 宁波德辰液压科技有限公司 | Shell rotary inner curve radial plunger hydraulic motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI118233B (en) * | 2003-04-01 | 2007-08-31 | Sampo Hydraulics Oy | Radial piston hydraulic motor and method for adjusting radial piston hydraulic motor |
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2011
- 2011-12-13 CN CN201110412911.1A patent/CN102493913B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2086991A (en) * | 1980-08-26 | 1982-05-19 | Staffa Products Ltd | Improvements in and relating to hydraulic motors |
| US5697765A (en) * | 1993-04-13 | 1997-12-16 | Sauer Inc. | Hydraulic motor |
| CN2505648Y (en) * | 2001-09-26 | 2002-08-14 | 贺孝杰 | Cycloidal hydraulic motor with built-in mechanical brake |
| CN2619064Y (en) * | 2003-01-16 | 2004-06-02 | 株洲煤矿机械厂 | Shell rotary type inner curve hydraulic motor |
| CN101709685A (en) * | 2009-11-11 | 2010-05-19 | 宜昌市燕狮科技开发有限责任公司 | Radial plunger type multiple-action inner curved hydraulic motor |
| CN202326004U (en) * | 2011-12-13 | 2012-07-11 | 宁波德辰液压科技有限公司 | Shell rotary inner curve radial plunger hydraulic motor |
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| CN102493913A (en) | 2012-06-13 |
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Effective date of registration: 20150116 Address after: 315800, No. 503, West Road, A2 Science Park, Beilun District, Zhejiang, Ningbo Applicant after: Ningbo Dechen Hydraulic Technology Co., Ltd. Address before: 315000, Beilun, Zhejiang province Ningbo science and Technology Park, A2 West 503 West Road, Ningbo Hydraulic Technology Co., Ltd. Applicant before: Zhou Wei |
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