CN102174924A - Swing-cylinder hydraulic motor - Google Patents
Swing-cylinder hydraulic motor Download PDFInfo
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- CN102174924A CN102174924A CN201110056441XA CN201110056441A CN102174924A CN 102174924 A CN102174924 A CN 102174924A CN 201110056441X A CN201110056441X A CN 201110056441XA CN 201110056441 A CN201110056441 A CN 201110056441A CN 102174924 A CN102174924 A CN 102174924A
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- groove
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- tilt cylinder
- oil distribution
- distribution casing
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Abstract
The invention discloses a swing-cylinder hydraulic motor which comprises a shell and a shell cover, wherein the side edge of the shell cover is provided with an oil flowing disc and an oil distribution disc; a first concave hole and a second concave hole are respectively arranged in the shell and the shell cover; two ends of a swing cylinder are respectively provided with a first shaft end and a second shaft end; the first shaft end and the second shaft end are both penetratively arranged in the first concave hole and the second concave hole; the end part of the oil distribution disc is provided with an annular groove; the bottom of a constricting groove of the annular groove is provided with an O-shaped seal ring, a seal ring and a gasket; the oil distribution disc is provided with a first oil chamber and a second oil chamber; the first oil chamber and the second oil chamber are both of a groove; the end surface of the oil distribution disc and the lateral wall of the first oil chamber are provided with an arc-shaped transitional surface respectively; and the end surface of the oil distribution disc and the lateral wall of the second oil chamber are both provided with an arc-shaped transitional surface. In the invention, an oil-sealed transitional belt is combined with the arc-shaped transitional surfaces so that the oil flowing area is gradually changed, therefore the vibration noise is reduced, and the service life of the oil distribution disc can be prolonged at the same time.
Description
Technical field
The present invention relates to a kind of liquid motor, relate in particular to a kind of tilt cylinder type hydraulic motor.
Background technique
As the critical piece that provides in the high pulling torque hydraulic system, the quality of radial plunger type motor is the machine work efficient of influence under actual conditions directly.It can reliablely and stablely be worked under very low rotating speed, can directly be connected with the operation mechanism that needs low-speed running, complete machine structure is simplified, also has the advantage that efficient is high and the life-span is long, so bigger development is arranged in recent years, is 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 type hydraulic motor is a kind of in the radial plunger piston motor.It has the advantage while of radial plunger piston motor, the characteristics that also have oneself on the structure: do not have lateral force between tilt cylinder and the bent axle, piston base is designed to static balance, pass through the rolling bearing power transmission between piston and the bent axle, these measures have all reduced the frictional loss in the power transmission process, thereby have improved the hydraulic machinery efficient, particularly starting state of this motor, its hydraulic machinery efficient can reach 0.90, so detent torque is very big.Adopt this technology of valve plate distribution besides, leakage is greatly reduced, improved reliability.In addition, adopt the plastic piston ring sealing between piston and the tilt cylinder, can reach does not almost have leakage, thereby has improved volumetric efficiency greatly yet.
The axis of tilt cylinder and piston is the center by crankshaft bearing bush all the time, thereby tilt cylinder and piston do not have lateral force, high pressure oil enters the oil distribution casing that rotates with bent axle from the filler opening of logical food tray, and enter piston top through housing runner and tilt cylinder earrings place and enter piston bottom counter balance pocket through throttling pore again, lead to the piston of high pressure oil this moment under the oil pressure effect, by spherical axis bearing sleeve and roller power is delivered on the eccentric shaft, bent axle rotates under the eccentric moment effect, along with high pressure oil enters, piston moves up to lower dead centre extremely to axis direction, piston cavity begins to connect with return opening by oil distribution casing, piston this moment quilt under the promotion of bent axle is pushed away axis direction and is moved, and the piston cavity volume reduces, and low pressure oil is through tilt cylinder earrings place passage, the housing runner, oil distribution casing, logical food tray is discharged to return opening, and each piston is connected high pressure and low pressure according to this, the driving moment addition in the same way that the piston of each logical high pressure is produced the output shaft center obtains to stablize continuously rotary torque with regard to making hydraulic motor output shaft.When changing oily flow path direction,,, also can realize the counter-rotating of oil hydraulic motor if thrust plate is turned over 180 degree assemblings just can change turning to of oil hydraulic motor
This tilt cylinder type hydraulic motor finds that in the long-time back of using the seal ring of logical food tray and oil distribution casing joint very easily weares and teares, thereby causes hydraulic fluid leak, influences the use of tilt cylinder type hydraulic motor.In addition when oil distribution casing rotation, the zone of high pressure enters low pressure area after by the oil sealing transition zone, makes the low pressure tilt cylinder enter high pressure, and the long-pending flip-flop build-up of pressure pulsation of the logical pasta of this process produces vibrating noise.
Summary of the invention
The purpose of this invention is to provide a kind of not easy to wearly, and be difficult for taking place the tilt cylinder type hydraulic motor of noise when oil distribution casing rotation.
For realizing this purpose, the present invention is solved by following technical proposals: a kind of tilt cylinder type hydraulic motor, comprise housing and cap, the oil distribution casing that the side of described cap is provided with logical food tray and rotates with bent axle, described logical food tray is provided with filler opening, described oil distribution casing is provided with first oil inlet passage that filler opening is connected, be respectively arranged with first shrinkage pool and second shrinkage pool in described housing and the cap, a tilt cylinder is positioned at housing and cap, and the two ends of described tilt cylinder have first axle head and second axle head respectively, and described first axle head and second axle head all are located in first shrinkage pool and second shrinkage pool, it is characterized in that, the end of described oil distribution casing is provided with circular groove, described circular groove comprises a narrow groove and an expansion groove of contracting, described narrow contracting has a step between groove and the expansion groove, the narrow groove bottom that contracts of described circular groove is provided with " O " shape seal ring, the step place of described circular groove is provided with seal ring, be provided with pad between described seal ring and the logical food tray, one sidewall of described pad closely contacts with seal ring, another sidewall closely contacts with logical food tray, described oil distribution casing is provided with first oil pocket and second oil pocket, described first oil pocket and second oil pocket are a groove, the sidewall of the end face of described oil distribution casing and first oil pocket has arc transiting surface, and the sidewall of the end face of described oil distribution casing and second oil pocket also has arc transiting surface.
In the technique scheme, the mode with interference fit in described first shrinkage pool and second shrinkage pool is equipped with axle sleeve, and first axle head and second axle head of described tilt cylinder all are located in the axle sleeve.
In the technique scheme, the madial wall of described axle sleeve be provided with three along first groove of extending circumferentially and one along axially extended second groove of axle sleeve, and second groove links into an integrated entity three first grooves.
In the technique scheme, the groove width of described first groove and second groove is 0.28～0.32 mm, and groove depth is 0.48～0.52 mm.
The present invention compared with prior art, have following beneficial effect: 1) the present invention adds arc transiting surface at the end face (also being the oil sealing transition zone) of described oil distribution casing, allow logical pasta amass gradually and change, thereby reduce vibrating noise, the life-span that can also improve oil distribution casing simultaneously.
2) the present invention has additional seal ring and pad, and protection " O " shape seal ring is not rubbed in rotary course when playing seal action.Pad is processed easily, and can be wear-resisting withstand voltage, changes simple.
Description of drawings
Fig. 1 structural representation plan view of the present invention.
Fig. 2 is a left view shown in Figure 1.
Fig. 3 is the longitudinal section that oil distribution casing and logical food tray cooperatively interact.
Fig. 4 is the partial enlarged drawing that oil distribution casing and logical food tray cooperatively interact.
Fig. 5 is an oil distribution casing assembly schematic representation.
Fig. 6 is the structural representation of oil distribution casing.
Fig. 7 be among Fig. 6 A-A to sectional view.
Fig. 8 is the structural representation of oil distribution casing motion, and a wherein hole of logical food tray is just being produced in the oil distribution casing zone of high pressure.
Fig. 9 is the structural representation of oil distribution casing motion, and the oil distribution casing low pressure area is just changing a wherein hole of logical food tray over to.
Figure 10 is the structural representation of blowout patche.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Referring to Fig. 1～10, described tilt cylinder type hydraulic motor comprises the oil distribution casing 9 that the housing 1 and the cap 3 of mutual amalgamation, the side of described cap 3 are provided with logical food tray 7 and rotate with bent axle.Described logical food tray 7 is provided with the described filler opening 70 of filler opening 70(and is in communication with the outside, and is not shown), described oil distribution casing 9 is provided with first oil inlet passage 90 that is connected with filler opening 70.
Be respectively arranged with first shrinkage pool 10 and second shrinkage pool 30 in described housing 1 and the cap 3, mode with interference fit in described first shrinkage pool 10 and second shrinkage pool 30 is equipped with axle sleeve 11, a tilt cylinder 5 is positioned at housing 1 and cap 3, and the two ends of described tilt cylinder 5 have first axle head 50 and second axle head 52 respectively, and first axle head 50 of this tilt cylinder 5 and second axle head 52 all are located in the axle sleeve 11.For the present invention, axle sleeve must possess good wear resistance, excellent mechanical property.Have found that axle sleeve 11 adopts the GCr15 Bearing Steel can satisfy usage requirement preferably.
Because in order to reduce manufacture cost, described housing 1 and cap 3 adopt the iron casting moulding, heat-treat then.Therefore housing 1 of the prior art and cap 3 are easy to wearing and tearing, and the present invention is equipped with axle sleeve in the mode of interference fit and has then well solved this problem in first shrinkage pool 10 and second shrinkage pool 30.Housing 1 does not directly contact with tilt cylinder 5 with cap 5, and is therefore not easy to wear, even therefore housing 1 adopts comparatively cheap material also to have very long working life with cap 3.After wearing and tearing appear in axle sleeve 11, only need replacing axle sleeve 11 to get final product in addition, thereby greatly reduce the user cost of tilt cylinder type hydraulic motor.
The madial wall of described axle sleeve 11 be provided with three along first groove 110 of extending circumferentially and one along axle sleeve 11 axially extended second grooves 112, and second groove 112 links into an integrated entity three first grooves 110, forms " king " word (concrete shape is seen Figure 10).The groove width of described first groove 110 and second groove 112 is 0.28～0.32 mm, and groove depth is 0.48～0.52 mm, and the present invention is arranged to groove width 0.3mm, groove depth 0.5mm with it.Through test; this king's word groove also is that the groove width of first groove 110 and second groove 112 and the size of groove depth make the win axle head 50 and second axle head 52 and shaft room oil film reach static balance; first axle head 50 and second axle head 52 to tilt cylinder 5 play the surge protection effect, lower frictional loss to improve mechanical efficiency.
See Fig. 4, the end of described oil distribution casing 9 is provided with circular groove 92, described circular groove 92 comprises a narrow groove 920 and an expansion groove 922 of contracting, described narrow contracting has a step 924 between groove 920 and the expansion groove 922, narrow groove 920 bottoms of contracting of described circular groove 92 are provided with " O " shape seal ring 13, step 924 places of described circular groove 92 are provided with seal ring 15, are provided with pad 17 between described seal ring 15 and the logical food tray 7.The parallelism of described pad 17 is 0.01mm, the parallelism of described pad 17 is arranged to 0.01mm can makes pad 17 have good mechanical seal, and a sidewall of described pad 17 closely contacts with seal ring 15, another sidewall closely contacts with logical food tray 7.
After increasing seal ring 15 and pad 17, when first oil pocket 94 be the zone of high pressure, " O " shape seal ring 13 and seal ring 15 compress oil distribution casing 9 pads 17 together with high pressure oil, protect " O " shape seal ring 13 not rubbed in rotary course when playing seal action.When second oil pocket 96 acts on the same for high pressure oil plays.Pad 17 is processed easily, and can be wear-resisting withstand voltage, changes simple.
Described oil distribution casing 9 is provided with first oil pocket 94 and second oil pocket 96, described first oil pocket 94 and second oil pocket 96 are a groove, the end face of described oil distribution casing 9 (also being oil sealing transition zone 95) has arc transiting surface 940 with the sidewall of first oil pocket 94, and the sidewall of the end face of described oil distribution casing 9 and second oil pocket 96 also has the arc transiting surface (not shown).When first oil pocket 94 is the zone of high pressure, oil distribution casing 9 rotations, the zone of high pressure enters low pressure area after by oil sealing transition zone 95, makes tilt cylinder 5 enter high pressure conditions by low-pressure state, and the long-pending flip-flop build-up of pressure pulsation of the logical pasta of this process produces vibrating noise.Add arc transiting surface 940 in oil sealing transition zone 95, allow logical pasta amass gradually and change, thereby reduce vibrating noise, the life-span that can also improve oil distribution casing 9 simultaneously.
Claims (4)
1. tilt cylinder type hydraulic motor, comprise housing (1) and cap (3), the oil distribution casing (9) that the side of described cap (3) is provided with logical food tray (7) and rotates with bent axle, described logical food tray (7) is provided with filler opening (70), described oil distribution casing (9) is provided with first oil inlet passage (90) that filler opening (70) is connected, be respectively arranged with first shrinkage pool (10) and second shrinkage pool (30) in described housing (1) and the cap (3), a tilt cylinder (5) is positioned at housing (1) and cap (3), and the two ends of described tilt cylinder (5) have first axle head (50) and second axle head (52) respectively, and described first axle head (50) and second axle head (52) all are located in first shrinkage pool (10) and second shrinkage pool (30), it is characterized in that, the end of described oil distribution casing (9) is provided with circular groove (92), described circular groove (92) comprises a narrow groove that contracts (920) and expansion groove (922), has a step (924) between described narrow groove that contracts (920) and the expansion groove (922), the narrow groove that contracts (920) bottom of described circular groove (92) is provided with " O " shape seal ring (13), the step (924) of described circular groove (92) locates to be provided with seal ring (15), be provided with pad (17) between described seal ring (15) and the logical food tray (7), one sidewall of described pad (17) closely contacts with seal ring (15), another sidewall closely contacts with logical food tray (7), described oil distribution casing (9) is provided with first oil pocket (94) and second oil pocket (96), described first oil pocket (94) and second oil pocket (96) are a groove, the sidewall of the end face of described oil distribution casing (9) and first oil pocket (94) has arc transiting surface (940), and the sidewall of the end face of described oil distribution casing (9) and second oil pocket (96) also has arc transiting surface.
2. tilt cylinder type hydraulic motor as claimed in claim 1, it is characterized in that, mode with interference fit in described first shrinkage pool (10) and second shrinkage pool (30) is equipped with axle sleeve (11), and first axle head (50) and second axle head (52) of described tilt cylinder (5) all are located in the axle sleeve (11).
3. tilt cylinder type hydraulic motor as claimed in claim 2, it is characterized in that, the madial wall of described axle sleeve (11) be provided with three along first groove (110) of extending circumferentially and one along axially extended second groove of axle sleeve (11) (112), and second groove (112) links into an integrated entity three first grooves (110).
4. as claim 2 or 3 described tilt cylinder type hydraulic motors, it is characterized in that the groove width of described first groove (110) and second groove (112) is 0.28～0.32 mm, groove depth is 0.48～0.52 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110056441 CN102174924B (en) | 2011-03-10 | 2011-03-10 | Swing-cylinder hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110056441 CN102174924B (en) | 2011-03-10 | 2011-03-10 | Swing-cylinder hydraulic motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102174924A true CN102174924A (en) | 2011-09-07 |
| CN102174924B CN102174924B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110056441 Active CN102174924B (en) | 2011-03-10 | 2011-03-10 | Swing-cylinder hydraulic motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109026894A (en) * | 2018-09-05 | 2018-12-18 | 芜湖中意液压科技股份有限责任公司 | A kind of tilt cylinder motor of resistance to flat surface grinding flow component |
| CN110410268A (en) * | 2019-07-21 | 2019-11-05 | 杭州电子科技大学 | A kind of rotating flow distribution motor |
| CN114320730A (en) * | 2021-12-23 | 2022-04-12 | 宁波丹顿液压传动有限公司 | Oil distribution system of double-row ten-cylinder radial plunger motor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018139A (en) * | 1974-08-08 | 1977-04-19 | Societe Anonyme Francaise Du Ferodo | Rotary hydraulic machine |
| CN1101700A (en) * | 1993-10-13 | 1995-04-19 | 杨永宁 | High pressure radial plunger oil pump |
| CN2299181Y (en) * | 1997-03-10 | 1998-12-02 | 胡世璇 | Crankshaft link hydraulic motor |
| CN2299182Y (en) * | 1997-03-10 | 1998-12-02 | 胡世璇 | Swinging-cylinder hydraulic motor |
| CN2634167Y (en) * | 2003-06-17 | 2004-08-18 | 周伟 | Radial swing cylinder piston type hydraulic motor |
| CN200968337Y (en) * | 2006-11-17 | 2007-10-31 | 宁波欧易液压有限公司 | Plunger sleeve used for single-action hydraulic motor |
| CN101078410A (en) * | 2006-05-26 | 2007-11-28 | 周伟 | Radial plunger type 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 |
-
2011
- 2011-03-10 CN CN 201110056441 patent/CN102174924B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018139A (en) * | 1974-08-08 | 1977-04-19 | Societe Anonyme Francaise Du Ferodo | Rotary hydraulic machine |
| CN1101700A (en) * | 1993-10-13 | 1995-04-19 | 杨永宁 | High pressure radial plunger oil pump |
| CN2299181Y (en) * | 1997-03-10 | 1998-12-02 | 胡世璇 | Crankshaft link hydraulic motor |
| CN2299182Y (en) * | 1997-03-10 | 1998-12-02 | 胡世璇 | Swinging-cylinder hydraulic motor |
| CN2634167Y (en) * | 2003-06-17 | 2004-08-18 | 周伟 | Radial swing cylinder piston type hydraulic motor |
| CN101078410A (en) * | 2006-05-26 | 2007-11-28 | 周伟 | Radial plunger type hydraulic motor |
| CN200968337Y (en) * | 2006-11-17 | 2007-10-31 | 宁波欧易液压有限公司 | Plunger sleeve used for single-action 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109026894A (en) * | 2018-09-05 | 2018-12-18 | 芜湖中意液压科技股份有限责任公司 | A kind of tilt cylinder motor of resistance to flat surface grinding flow component |
| CN110410268A (en) * | 2019-07-21 | 2019-11-05 | 杭州电子科技大学 | A kind of rotating flow distribution motor |
| CN114320730A (en) * | 2021-12-23 | 2022-04-12 | 宁波丹顿液压传动有限公司 | Oil distribution system of double-row ten-cylinder radial plunger motor |
| CN114320730B (en) * | 2021-12-23 | 2023-11-24 | 宁波丹顿液压传动有限公司 | Oil distribution system of double-row ten-cylinder radial plunger motor |
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| Publication number | Publication date |
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| CN102174924B (en) | 2013-04-17 |
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