CN103758690A - Rolling-friction tilt cylinder hydraulic motor - Google Patents
Rolling-friction tilt cylinder hydraulic motor Download PDFInfo
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- CN103758690A CN103758690A CN201310479955.5A CN201310479955A CN103758690A CN 103758690 A CN103758690 A CN 103758690A CN 201310479955 A CN201310479955 A CN 201310479955A CN 103758690 A CN103758690 A CN 103758690A
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- tilt cylinder
- housing
- oil
- bonnet
- hydraulic motor
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Abstract
The invention discloses a rolling-friction tilt cylinder hydraulic motor comprising a housing, a rear cover hermetically connected with the housing, an oil passing disk fixedly mounted on the rear cover, a crankshaft, a bearing sleeve, tilt cylinders and hollow plungers, wherein the crankshaft, the bearing sleeves, the tilt cylinders and the hollow plungers are mounted in an accommodating space formed after the housing is connected with the rear cover; both ends of the crankshaft are respectively supported on the housing and the rear cover respectively through roller bearings; the bearing sleeve supports on an eccentric crankshaft segment of the crankshaft through a roller; one end, located on the rear cover, of the crankshaft is connected with an oil distribution disk through a universal joint pin; the number of the tilt cylinders is odd, both ends of each tilt cylinder are respectively supported on the housing and the rear cover respectively through inner ring-free needle bearings, and a cylinder body of each tilt cylinder is internally slidingly connected with one hollow plunger; each hollow plunger is hinged on the bearing sleeve through a spherical surface. The both ends of each tilt cylinder are supported by the inner ring-free needle bearings, so that the torque-starting efficiency and the mechanical efficiency are improved due to rolling friction, and cooperative abrasion of the both ends of each tilt cylinder is reduced so as to ensure a parallelism error of the tilt cylinders and the crankshaft.
Description
Technical field
The present invention relates to a kind of oil hydraulic motor, be specifically related to a kind of tilt cylinder oil hydraulic motor of rolling friction.
Background technique
As the critical piece that high-torque hydraulic system is provided, the quality of radial plunger type motor directly affects the machine work efficiency under actual conditions.It can reliablely and stablely work under very low rotating speed, can directly be connected with the operation mechanism of the vulgar running of needs, complete machine structure is simplified, also there is efficiency height and life-span long a little, therefore have larger development this year, be widely used in the hydraulic system of light industry and machinery, engineering machinery, mining machinery, handling machinery, ship deck machinery and farm machinery etc.
Tilt cylinder oil hydraulic motor is the one in radial plunger piston motor, when it has radial plunger piston motor advantage, structurally also has the feature of oneself: between tilt cylinder and bent axle, there is no lateral force, piston base is designed to static balance, between piston and bent axle, pass through rolling bearing power transmission, these measures have all reduced the frictional loss in power transmission process, thereby improved the hydraulic machinery efficiency of motor, particularly starting state, its hydraulic machinery efficiency can reach 0.9, therefore detent torque is very large, adopt besides this technology of valve plate distribution, time reveal greatly reduce, improved reliability.
Existing a kind of tilt cylinder oil hydraulic motor comprises housing, the bonnet being connected with housing seal, be fixedly mounted on the logical food tray on bonnet, and be arranged on bent axle, oil distribution casing, tilt cylinder and the hollow plunger in the containing space after housing is connected with bonnet, one of bent axle leads to and is connected to the oil distribution casing together rotating with it, tilt cylinder is supported on housing by the axle sleeve of rigidity, while adopting this structure that tilt cylinder is installed, starting torque, mechanical efficiency are lower, and the cooperation at tilt cylinder two ends wearing and tearing are larger, thereby easily cause the parallelism error of tilt cylinder and bent axle to increase.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is to provide a kind of tilt cylinder oil hydraulic motor that reduces the cooperation wearing and tearing at tilt cylinder two ends and guarantee the rolling friction of the parallelism error of tilt cylinder and bent axle.
(2) technological scheme
For solving the problems of the technologies described above, the invention provides a kind of tilt cylinder oil hydraulic motor of rolling friction, it comprises housing, the bonnet being connected with housing seal, be fixedly mounted on the logical food tray on bonnet, and be arranged on bent axle, bearing housing, tilt cylinder and hollow plunger in the containing space after housing is connected with bonnet; The two ends of bent axle are all supported on respectively on housing and bonnet by roller bearing, bearing housing is supported on by roller in the eccentric crankshaft section of bent axle, one end that bent axle is positioned on bonnet is connected with oil distribution casing by cross axle, tilt cylinder is odd number, the two ends of each tilt cylinder are all supported on respectively on housing and bonnet by needle roller bearing without inner ring, in the cylinder body of each tilt cylinder, slidably connect a hollow plunger, hollow plunger is connected on bearing housing by spherical hinge; The filler opening of high pressure oil from logical food tray enters, and enters successively the hollow portion of hollow plunger by the second logical oil groove on the logical oil groove of first on the oil distributing hole on oil distribution casing, bonnet, tilt cylinder.
Wherein, on the circumference of each tilt cylinder, be evenly provided with multiple oil throughs that lead to oil groove for being communicated with the second logical oil groove and first.
Wherein, be provided with two seal grooves between each tilt cylinder and bonnet, two seal grooves lay respectively at the two ends of the first logical oil groove, and an O RunddichtringO and the first seal ring are installed in each seal groove successively.
Wherein, the 2nd O RunddichtringO and the second seal ring are installed successively between the cylinder body of tilt cylinder and hollow plunger.
Wherein, one end that tilt cylinder is positioned on bonnet offers L-type hole.
(3) beneficial effect
Compared with prior art, tilt cylinder of the present invention two ends adopt needle roller bearing without inner ring to support, and starting torque, mechanical efficiency are improved because of rolling friction, thereby the cooperation at tilt cylinder two ends wearing and tearing are reduced and guarantee the parallelism error of tilt cylinder and bent axle; The logical oil groove of on bonnet second two ends adopt O RunddichtringO to add the sealing structure of seal ring, can bear higher pressure, and sealing life is also longer; Tilt cylinder end face offers the design of L-type hole can be with solving the pocketed oil of oil hydraulic motor, tired gas phenomenon; On tilt cylinder circumference, evenly offer multiple oil throughs, make the logical oil groove of second on bonnet freely lead to oily the first oil through at 360 ° of any directions of circumference.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the tilt cylinder oil hydraulic motor of rolling friction of the present invention.
Fig. 2 is the structural representation of another section of tilt cylinder oil hydraulic motor of rolling friction of the present invention.
Fig. 3 is the A-A sectional view in Fig. 1.
Fig. 4 is the B portion structure for amplifying schematic diagram in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but can not be used for limiting the scope of the invention.
The structure of the tilt cylinder oil hydraulic motor of rolling friction of the present invention as depicted in figs. 1 and 2, A-A cross-section structure in Fig. 1 as shown in Figure 3, B portion structure for amplifying in Fig. 1 as shown in Figure 4, this tilt cylinder oil hydraulic motor comprises housing 6, the bonnet 5 being tightly connected with housing 6, be fixedly mounted on the logical food tray 3 on bonnet 5, and be arranged on bent axle 7, bearing housing 9, tilt cylinder 1 and hollow plunger 2 in the containing space after housing 6 is connected with bonnet 5; The two ends of bent axle 7 are all supported on respectively on housing 6 and bonnet 5 by roller bearing 8, bearing housing 9 is supported on by roller 17 in the eccentric crankshaft section of bent axle 7, one end that bent axle 7 is positioned on bonnet 5 is connected with oil distribution casing 4 by cross axle 11, tilt cylinder 1 is odd number, the two ends of each tilt cylinder 1 are all supported on respectively on housing 6 and bonnet 5 by needle roller bearing without inner ring 10, in the cylinder body of each tilt cylinder 1, slidably connect a hollow plunger 2, hollow plunger 2 is connected on bearing housing 9 by spherical hinge; On logical food tray 3, be provided with filler opening (not shown), on oil distribution casing 4, be provided with oil distributing hole (not shown), bonnet 5 and be provided with the first logical oil groove 51, on tilt cylinder 1, be provided with the second logical oil groove 16, filler opening, oil distributing hole, the first logical oil groove 51, the second logical oil groove 16 are connected with the hollow portion of hollow plunger 2.
Wherein, on the circumference of each tilt cylinder 1, be evenly provided with multiple oil throughs 15 that lead to oil groove 51 for being communicated with the second logical oil groove 16 and first.
Wherein, be provided with two seal grooves between each tilt cylinder 1 and bonnet 5, two seal grooves lay respectively at the two ends of the first logical oil groove 51, and an O RunddichtringO 13 and the first seal ring 12 are installed in each seal groove successively.
Wherein, the 2nd O RunddichtringO 18 and the second seal ring 19 are installed successively between the cylinder body of tilt cylinder 1 and hollow plunger 2.
Hydraulic transmission process of the present invention is as follows: the filler opening of high pressure oil from logical food tray 3 enters, by the second logical oil groove 16 on the logical oil groove 51 of first on the oil distributing hole on oil distribution casing 4, bonnet 5, tilt cylinder 1, enter the hollow portion of hollow plunger 2 and oil pressure is applied on hollow plunger 2 successively, promote hollow plunger 2, active force is delivered in the eccentric crankshaft section of bent axle 7 by hollow plunger 2, makes bent axle 7 drive oil distribution casing flexing axle rotating center to rotate.
Tilt cylinder of the present invention two ends adopt needle roller bearing without inner ring to support, and starting torque, mechanical efficiency are improved because of rolling friction, thereby the cooperation at tilt cylinder two ends wearing and tearing are reduced and guarantee the parallelism error of tilt cylinder and bent axle; The logical oil groove of on bonnet second two ends adopt O RunddichtringO to add the sealing structure of seal ring, can bear higher pressure, and sealing life is also longer; On tilt cylinder circumference, evenly offer multiple oil throughs, make the logical oil groove of second on bonnet freely lead to oily the first oil through at 360 ° of any directions of circumference.
These are only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the tilt cylinder oil hydraulic motor of a rolling friction, it is characterized in that: described tilt cylinder oil hydraulic motor comprises housing (6), the bonnet (5) being tightly connected with described housing (6), be fixedly mounted on the logical food tray (3) on described bonnet (5), and be arranged on bent axle (7), bearing housing (9), tilt cylinder (1) and hollow plunger (2) in the containing space after described housing (6) is connected with described bonnet (5), the two ends of described bent axle (7) are all supported on respectively on described housing (6) and described bonnet (5) by roller bearing (8), described bearing housing (9) is supported on by roller (17) in the eccentric crankshaft section of described bent axle (7), one end that described bent axle (7) is positioned on described bonnet (5) is connected with oil distribution casing (4) by cross axle (11), described tilt cylinder (1) is odd number, the two ends of each described tilt cylinder (1) are all supported on respectively on described housing (6) and described bonnet (5) by needle roller bearing without inner ring (10), in the cylinder body of each described tilt cylinder (1), slidably connect a described hollow plunger (2), described hollow plunger (2) is connected on described bearing housing (9) by spherical hinge, the filler opening of high pressure oil from described logical food tray (3) enters, and enters successively the hollow portion of described hollow plunger (2) by the second logical oil groove (16) on the logical oil groove (51) of first on the oil distributing hole on described oil distribution casing (4), described bonnet (5), described tilt cylinder (1).
2. the tilt cylinder oil hydraulic motor of rolling friction according to claim 1, is characterized in that: on the circumference of each described tilt cylinder (1), be evenly provided with multiple for being communicated with the oil through (15) of the described second logical oil groove (16) and the described first logical oil groove (51).
3. the tilt cylinder oil hydraulic motor of rolling friction according to claim 1, it is characterized in that: between each described tilt cylinder (1) and described bonnet (5), be provided with two seal grooves, two described seal grooves lay respectively at the two ends of the described first logical oil groove (51), and an O RunddichtringO (13) and the first seal ring (12) are installed in each described seal groove successively.
4. the tilt cylinder oil hydraulic motor of rolling friction according to claim 1, is characterized in that: the 2nd O RunddichtringO (18) and the second seal ring (19) are installed between the cylinder body of described tilt cylinder (1) and described hollow plunger (2) successively.
5. according to the tilt cylinder oil hydraulic motor of the rolling friction described in claim 1 to 4 any one, it is characterized in that: one end that described tilt cylinder (1) is positioned on described bonnet (5) offers L-type hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479955.5A CN103758690A (en) | 2013-10-14 | 2013-10-14 | Rolling-friction tilt cylinder hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479955.5A CN103758690A (en) | 2013-10-14 | 2013-10-14 | Rolling-friction tilt cylinder hydraulic motor |
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| Publication Number | Publication Date |
|---|---|
| CN103758690A true CN103758690A (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310479955.5A Pending CN103758690A (en) | 2013-10-14 | 2013-10-14 | Rolling-friction tilt cylinder hydraulic motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275734A (en) * | 2015-11-16 | 2016-01-27 | 宁波汉竹液压马达有限公司 | Axial-oil-distribution tilt cylinder plunger type hydraulic motor |
| CN106050788A (en) * | 2016-08-05 | 2016-10-26 | 芜湖中意液压科技股份有限责任公司 | Swing-cylinder-type motor with wear-resistant planar flow-distribution component |
| CN108988551A (en) * | 2018-09-05 | 2018-12-11 | 芜湖中意液压科技股份有限责任公司 | A kind of tilt cylinder motor easy for installation and high bonding strength |
| CN110410268A (en) * | 2019-07-21 | 2019-11-05 | 杭州电子科技大学 | A kind of rotating flow distribution motor |
Citations (8)
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| JPS5142103A (en) * | 1974-08-08 | 1976-04-09 | Fr Deyu Fuerodo Sa | |
| CN1097166C (en) * | 1997-09-29 | 2002-12-25 | S·A·I会水利设备股份公司 | Hydraulic machine with radial pistons and variable displacement |
| CN101432520A (en) * | 2006-04-20 | 2009-05-13 | S.A.I会水利设备股份公司 | Hydraulic motor with star shaped cylinder and continuously variable displacement |
| CN201560890U (en) * | 2009-11-05 | 2010-08-25 | 昆山金发液压机械有限公司 | Hydraulic motor without link levers of planar oil distributing crankshaft |
| CN202055982U (en) * | 2011-03-10 | 2011-11-30 | 宁波新宏液压有限公司 | Oscillating cylinder hydraulic motor |
| CN102345554A (en) * | 2006-04-20 | 2012-02-08 | S.A.I会水利设备股份公司 | Star-like cylinder hydraulic hydraulic motor |
| CN102852708A (en) * | 2012-09-20 | 2013-01-02 | 台州帕克兰液压机械有限公司 | Hydraulic motor with flushing function |
| CN203130358U (en) * | 2013-01-07 | 2013-08-14 | 宁波新宏液压有限公司 | Oscillating cylinder type radial plunger hydraulic motor |
-
2013
- 2013-10-14 CN CN201310479955.5A patent/CN103758690A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5142103A (en) * | 1974-08-08 | 1976-04-09 | Fr Deyu Fuerodo Sa | |
| CN1097166C (en) * | 1997-09-29 | 2002-12-25 | S·A·I会水利设备股份公司 | Hydraulic machine with radial pistons and variable displacement |
| CN101432520A (en) * | 2006-04-20 | 2009-05-13 | S.A.I会水利设备股份公司 | Hydraulic motor with star shaped cylinder and continuously variable displacement |
| CN102345554A (en) * | 2006-04-20 | 2012-02-08 | S.A.I会水利设备股份公司 | Star-like cylinder hydraulic hydraulic motor |
| CN201560890U (en) * | 2009-11-05 | 2010-08-25 | 昆山金发液压机械有限公司 | Hydraulic motor without link levers of planar oil distributing crankshaft |
| CN202055982U (en) * | 2011-03-10 | 2011-11-30 | 宁波新宏液压有限公司 | Oscillating cylinder hydraulic motor |
| CN102852708A (en) * | 2012-09-20 | 2013-01-02 | 台州帕克兰液压机械有限公司 | Hydraulic motor with flushing function |
| CN203130358U (en) * | 2013-01-07 | 2013-08-14 | 宁波新宏液压有限公司 | Oscillating cylinder type radial plunger hydraulic motor |
Non-Patent Citations (1)
| Title |
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| 何存兴: "《液压元件》", 28 February 1982, 机械工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275734A (en) * | 2015-11-16 | 2016-01-27 | 宁波汉竹液压马达有限公司 | Axial-oil-distribution tilt cylinder plunger type hydraulic motor |
| CN105275734B (en) * | 2015-11-16 | 2017-08-29 | 宁波汉竹液压马达有限公司 | A kind of axle matches somebody with somebody oily swing cylinder plunger hydraulic motor |
| CN106050788A (en) * | 2016-08-05 | 2016-10-26 | 芜湖中意液压科技股份有限责任公司 | Swing-cylinder-type motor with wear-resistant planar flow-distribution component |
| CN108988551A (en) * | 2018-09-05 | 2018-12-11 | 芜湖中意液压科技股份有限责任公司 | A kind of tilt cylinder motor easy for installation and high bonding strength |
| CN110410268A (en) * | 2019-07-21 | 2019-11-05 | 杭州电子科技大学 | A kind of rotating flow distribution motor |
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Application publication date: 20140430 |