CN102174901B - Blade type hydraulic motor with rocker arm structure - Google Patents
Blade type hydraulic motor with rocker arm structure Download PDFInfo
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- CN102174901B CN102174901B CN 201110040366 CN201110040366A CN102174901B CN 102174901 B CN102174901 B CN 102174901B CN 201110040366 CN201110040366 CN 201110040366 CN 201110040366 A CN201110040366 A CN 201110040366A CN 102174901 B CN102174901 B CN 102174901B
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Abstract
The invention discloses a blade type hydraulic motor with a rocker arm structure. The hydraulic motor comprises an end cover, an oil distribution disc, a stator, a rotor and a rotating shaft, wherein the rotor is connected with the rotating shaft by a spline; a plurality of blade grooves are uniformly formed on the rotor; two layers of rocker arm beams are arranged in circular grooves at the two ends of the rotor, each layer comprises a plurality of rocker arm beams, holes are formed in the centers of the rocker arm beams; pin shafts pass through the holes to rotationally connect the rocker arm beams with the rotor; circular cavities are formed at the two ends of each blade groove; through holes which are intersected with the circular cavities along the radial direction are formed below the circular cavities; pull rods and springs are arranged in the through holes sequentially; the bottom surfaces of the pull rods are contacted with the arms of the rocker arm beams; blades are arranged in the blade grooves; the bottom ends of the blades are contacted with the springs; the springs are positioned in the circular cavities; an oil circuit is communicated with the circular cavities; grooves are formed on the tops of the blades; and blade heads are inserted into the grooves, are tightly matched with the blades, are higher than the tops of the blades and are contacted with the inner curve surface of the stator. The hydraulic motor has high sealing performance between the blades and the stator, small abrasion during rotation, higher efficiency and longer service life.
Description
Affiliated technical field
The present invention relates to a kind of vane motor, refer more particularly to a kind of vane motor of rocker structure.
Background technique
Traditional vane motor, the structure of a kind of structure as shown in CN200420070363.4 " a kind of hole hydraulic motor " and CN200920102511.9 " vane motor ", blade and spring are arranged in the blade slide of rotor, rotor is contained in the stator, rotating shaft and rotor spline joint.There are two problems in this structure:
1, the material of described blade and stator is metal, directly contact between the internal surface of blade and stator, blade is close on the stator surface by the thrust of bottom spring, except rotating with rotor, promoted by the inner curve face of stator, blade also can move reciprocatingly along the Normal direction of self, thrust lower blade at spring has pressure to stator, and the long-term meeting serious wear of using, not only cause heating, and the irregular slit that long term wear produces is the one of the main reasons that causes internal leakage, causes the Efficiency Decreasing of oil hydraulic motor.
2, vane motor is usually used in frequently occasion of the slow-speed of revolution, high pulling torque, break-in, and high speed performance is bad.Because the elastic support to blade is provided by spring fully, the stroke of spring is long, elastic strain is large, work long hours and to make spring fatigue, elasticity reduces, and blade resets untimely when causing quick rotation, produce retardation phenomenon, cause blade and stator to cooperate not tight, and then cause internal leakage, thereby the effect of oil hydraulic motor is reduced, even spring breakage occurs and break down, and along with rotating speed increases, retardation phenomenon causes internal leakage more and more serious, has limited the application of vane motor in high rotating speed occasion.
Another kind of vane motor structure, structure as shown in CN200820182779.3 " double-acting vane pump teaching model " and CN02275159.9 " without the friction vane pump ", the bottom of blade and oil circuit are communicated with, the end that blade stretches out blade groove is equipped with bearing or steel ball as rolling element, when rotor rotates, blade is under the effect of centrifugal force and root pressure oil, press to the interior profile of stator along outside movement of blade groove, the total maintenance of steel ball contacts with the interior profile of stator, makes rotor and seal stator.
This structure is equipped with bearing structure on the top of blade, although reduced frictional force, certainly will make blade thicker, required precision is high, the assembling difficulty, and because also there is oil pressure in blade tip, offset with the oil pressure of root of blade, when the slow-speed of revolution such as startup, break-in, centrifugal force is not enough, blade and seal stator are good not, moment of torsion is little during startup, and it is not tight to add that steel ball and interior profile cooperate, and sealing effect is not ideal enough, internal leakage is serious, and moyor is low.
Among the patent No. CN00223338.X " multidigit piston vane motor ", blade design is become piston-shaped, set up servo cylinder and eccentric cylinder, the piston blades installation slides at servo cylinder and turns round, and in flakes latch of same cylinder is housed between two cylinder bodies.The internal surface of this structural requirement stator is necessary for circle, therefore can only be used for single vane motor, the moment of output is little, servo cylinder and epitrochanterian spherical joint, processing and assembling is very difficult, and cost is high, and servo cylinder is thicker, inertia is large during rotation, is not suitable for velocity variations frequent and the occasion of break-in requirement arranged.
Summary of the invention
Technical problem to be solved by this invention: a kind of vane motor of rocker structure is provided, the good airproof performance between blade and the stator, friction is little during rotation, the efficient of motor is higher, and the life-span is longer, and moment of torsion is large during low speed, operate steadily, heating value is little during high speed, and internal leakage is few.
The technical solution adopted for the present invention to solve the technical problems is: a kind of vane motor of rocker structure, include end cap, oil distribution casing, stator, rotor, rotating shaft, end cap wherein, oil distribution casing is connected bolt to connect with stator, the bearing of rotating shaft is between end cap and oil distribution casing, rotor is connected with rotating shaft, uniform many blade grooves on the rotor, it is characterized in that in the round recessed of described two ends of rotor two-layer rocking arm layer being installed also, wherein the rocking arm layer of internal layer is installed on the rotor, outer field rocking arm layer is installed in the inboard that is fixed on epitrochanterian annular backing plate, be evenly equipped with a plurality of rocking arms on every layer of rocking arm layer, the two-layer rocking arm angle that staggers; Each rocking arm comprises rocking arm crossbeam and two push rods; the center of rocking arm crossbeam is porose; bearing pin passes this hole is rotationally connected rocking arm crossbeam and rotor; there is cylindrical cavity at the two ends of described blade groove; the through hole that radially intersects is with it arranged under the cylindrical cavity, push rod and spring are housed in the through hole successively, the arm of the bottom surface of push rod and rocking arm crossbeam contacts; blade is housed in the blade groove, the bottom of blade and spring contact.
The top of described blade has groove, in the blade head insertion groove, and the blade drive fit, and exceed blade tip, contact with the inner curve face of stator.
The material of described blade head is nylon and polyamide, makes by cold working, and end face is that both sides are with plane or the arc shaped surface of chamfering.
Be designed with wiper groove on the bi-side of described blade.
Wiper groove on the described blade comprises two groups of kidney slots and two groups of half slots.
Described push rod is to be with stepped cylinder, the bottom surface that spring one end withstands blade, and the other end withstands on the ladder surface.The face that the push rod lower end contacts with the rocking arm crossbeam is arc shaped surface.
Described spring is positioned at the cylindrical cavity at blade groove two ends, and oil circuit and cylindrical cavity communicate.
Described rocking arm crossbeam is applicable to three effects and triple-cropping with above vane motor, and the slewing area of rocking arm crossbeam be-30 to spend to 30 and spend.
The two ends of described rotor also are fixed with annular backing plate, and the inboard of annular backing plate is installed a cover rocking arm crossbeam again, increases through hole, cylindrical cavity and the blade groove corresponding with rocking arm crossbeam position on the rotor, and cover push rod, spring and a blade is installed on the rotor again.
The rocking arm crossbeam of inboard on rocking arm crossbeam on the described two ends of rotor circular groove and the annular backing plate, an angle staggers.
Compared with prior art, the invention has the advantages that:
1, the convex portion of inner curve face compressing blade and push rod during motor operations, leverage by the rocking arm crossbeam closely cooperates the push rod promotion blade of the other end and the sunk part of inner curve face, therefore, along with rotating speed increases, blade all the time can with inner curve face no-float, eliminate " hysteresis " phenomenon, effectively improved the performance of oil hydraulic motor;
2, rocking arm crossbeam promotion push rod makes the blade head of blade tip contact with the stator negative camber, and spring produces thrust simultaneously to push rod and blade, can play the effect of buffering and damping, and its amount of elastic deformation is very little, thereby the working life of motor and stability raising;
3, spring is in the cylindrical cavity, and the oil in the cylindrical cavity not only can lubricate the rubbing surface between push rod, blade and the rotor, can also take away the heat that friction and spring vibration produce, and makes oil hydraulic motor be fit to work long hours;
4, the blade head that uses nylon and polyamide to make replaces metal blade to contact with the inner curve face of stator, has reduced friction factor between the two, and the heating of reducing friction has reduced loss;
5, because nylon has elasticity, and under the common thrust of rocking arm crossbeam and spring, micro-deformation can occur the blade head, make the contact segment better tightness of itself and stator inner curve face, effectively reduce the internal leakage of motor, improved the efficient of oil hydraulic motor;
6, blade can move reciprocatingly along Normal direction when rotating, and blade head and spring are together as buffering, and blade has been reduced vibrations and the noise of motor by the risk of stator gouge when having reduced rotation and commutation.
Description of drawings
Fig. 1 is structural representation
Fig. 2 a is A-A sectional view among Fig. 1
Fig. 2 b is the sectional view after Fig. 2 a rotor rotates counterclockwise 15 degree
The partial enlarged drawing of Fig. 3 Fig. 2 a Leaf slot part
Fig. 4 is that blade is to the schematic diagram of rocking arm header portion
Fig. 5 is the C-C sectional view of Fig. 6
Fig. 6 is the structural representation of rotor and stator
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further.
As shown in Figure 1, a kind of six effect vane motors include rotating shaft 1, housing 2, rotor 6, stator 7.Housing 2 is comprised of oil distribution casing 21, end cap 22 and Sealing 23, and the import and export of oil circuit and oil circuit are arranged on the oil distribution casing 21, and between oil distribution casing 21 and the end cap 22 bearing 11 is installed, and bearing 11 sides also are equipped with Sealing 23 and carry out leakproof and proofing dust and protecting.End cap 22, oil distribution casing 21 are connected with stator with 12 bolts connections.Rotor 6 is installed, rotor 6 and rotating shaft 1 spline joint in the stator 7.
Oil circuit and cylindrical cavity 63 communicate, high pressure oil can directly act on the blade bottom surface, the bottom surface of blade and the pressure of end face are consistent, prevent that oil pressure from applying radial pressure to blade tip, keep blade head and stator to cooperate closely, can also lubricate the rubbing surface between push rod 4, blade 5 and the rotor 6, in addition with the blade radial to-and-fro motion, pressure oil is constantly sucked and discharges by cylindrical cavity, can take away the heat that spring 9 vibrates and push rod 4, blade 5 frictions produce, oil hydraulic motor can be worked long hours.
As shown in Figure 4,5 contacted 41 on push rod 4 bottoms and rocking arm crossbeam are cambered surface, make push rod better cooperate the rocking arm crossbeam to rotate.
The top of described blade 5 has groove 51, in blade head 8 insertion grooves 51, and blade 5 drive fits, for firmly, also scribble glue between blade groove and the blade.The top of blade head 8 exceeds the top of blade 5, and the inner curve face 71 of blade 5 and stator 7 contacts by blade head 8.The material of blade head 8 is nylon and polyamide, makes by cold working.Cold working is the distortion that produces in hot working in order to reduce nylon.There is chamfering on the both sides of the end face 81 of blade head, and perhaps end face is arc shaped surface, to cooperate inner curve face 71.
Also be provided with wiper groove 52 on the bi-side of blade, wiper groove comprises two groups of kidney slots and two groups of half slots, can make between blade and the blade groove inwall and form oil film, plays lubrication, reduces friction.
The material of blade head 8 is nylon and polyamide, friction factor is little, has elasticity, good with the stator fitted seal, when oil hydraulic motor rotated, heating and internal leakage were little than the oil hydraulic motor of common metal blade, had improved the efficient of oil hydraulic motor, reduce the wearing and tearing of blade and stator, prolonged the working life of oil hydraulic motor.
Such as Fig. 2 a, Fig. 2 b and shown in Figure 4, high pressure oil promotes blade 5 and rotates between the inner curve face 71 of rotor 6 and stator, makes rotor 6 rotations.Blade head 8 contacts with inner curve face 71 all the time, respectively holds a push rod 4 and blade 5 on 3 two arms 32 of rocking arm crossbeam.When one of them blade is subjected to the inner curve face 71A extruding of projection, push rod 4 is close to the axle center of rotating shaft 1, rocking arm crossbeam 3 is rotated, and the push rod that another arm on the promotion rocking arm crossbeam is held and blade make the blade head 8 on its top and the inner curve face 71B close contact of depression away from the axle center.Spring 9 between blade and the push rod, only play damping and buffer function, deformation quantity is very little, therefore spring prolongs working life greatly, simultaneously because the lever construction of rocking arm crossbeam and the inner curve face of stator make the blade to-and-fro motion, eliminated the hysteresis effect of spring reset, the Seal cage that rotor, blade and stator consist of is equal energy good seal when low speed, high speed, and internal leakage is few.
For guaranteeing that the rocking arm crossbeam has the space of rotation, the rocking arm beam structure is applicable to three effects and triple-cropping with above vane motor.
For further increasing the moment of torsion of oil hydraulic motor, improve the oil hydraulic motor performance, stability when particularly the slow-speed of revolution moves, two-layer rocking arm layer also is installed in the round recessed 64 of described two ends of rotor, wherein the rocking arm layer of internal layer is installed on the rotor, outer field rocking arm layer is installed in the inboard that is fixed on epitrochanterian annular backing plate, is evenly equipped with a plurality of rocking arms on every layer of rocking arm layer, the two-layer rocking arm angle that staggers.The thickness of annular backing plate has guaranteed that two-layer rocking arm layer is on the different planes, and during revolution, each rocking arm motion can not interfere with each other.Implementation is Fig. 5, shown in Figure 6 for example, on the circular groove 64 of rotor 6, directly be rotationally connected a cover (6 totally 12) rocking arm crossbeam 3 on one side with bearing pin, can also on the circular groove 64 on the both ends of the surface of rotor 6, respectively connect an annular backing plate 65 with screw, the bottom surface of circular groove 64 is parallel on annular backing plate 65 and the rotor, and a cover rocking arm crossbeam 3 ' is installed in the inboard of annular backing plate 65 again.Correspondingly, the quantity of rotor 6 upper blade grooves 61 doubles, and in the blade groove and rocking arm crossbeam 3 ' corresponding position is provided with through hole and cylindrical cavity, and push rod 4 ', spring 9 ' and blade 5 ' are installed, and epitrochanterian blade amt can be doubled, and reaches 24.As shown in Figure 6, from cross section, rocking arm crossbeam 3 ', push rod 4 ', spring 9 ' and original rocking arm crossbeam 3, push rod 4, spring 9 15 degree (i.e. 360 ÷, 12 ÷ 2) that stagger, and be in different planes, do not interfere with each other.
Claims (8)
1. the vane motor of a rocker structure, include end cap (22), oil distribution casing (21), stator (7), rotor (6), rotating shaft (1), end cap wherein, oil distribution casing is connected bolt to connect with stator, the bearing of rotating shaft (11) is between end cap and oil distribution casing, rotor is connected with rotating shaft, uniform many blade grooves (61) on the rotor, it is characterized in that: two-layer rocking arm layer also is installed in the round recessed of described two ends of rotor (64), wherein the rocking arm layer of internal layer is installed on the rotor, outer field rocking arm layer is installed in the inboard that is fixed on epitrochanterian annular backing plate (65), be evenly equipped with a plurality of rocking arms on every layer of rocking arm layer, the two-layer rocking arm angle that staggers; Each rocking arm comprises rocking arm crossbeam (3) and two push rods (4); the center of rocking arm crossbeam porose (31); bearing pin passes this hole is rotationally connected rocking arm crossbeam and rotor; there is cylindrical cavity (63) at the two ends of described blade groove (61); the through hole (62) that radially intersects is with it arranged; push rod (4) and spring (9) are housed successively in the through hole; the arm (32) of the bottom surface of push rod and rocking arm crossbeam contacts; blade (5) is housed, the bottom of blade and spring contact in the blade groove under the cylindrical cavity.
2. the vane motor of a kind of rocker structure according to claim 1, the top that it is characterized in that blade has groove (51), in blade head (8) insertion groove (51), and the blade drive fit, and exceed blade tip, contact with the inner curve face (71) of stator.
3. the vane motor of a kind of rocker structure according to claim 2 is characterized in that the material of described blade head is nylon, makes by cold working, and its end face is both sides with the plane of chamfering (81) or is arc shaped surface.
4. the vane motor of a kind of rocker structure according to claim 1 is characterized in that being designed with wiper groove (52) on the bi-side of described blade (5).
5. according to claim 1 or the vane motor of a kind of rocker structure claimed in claim 4, it is characterized in that the wiper groove on the described blade (5) comprises two groups of kidney slots and two groups of half slots.
6. the vane motor of a kind of rocker structure according to claim 1, it is characterized in that described push rod (4) is to be with stepped cylinder, spring (9) one ends withstand blade, the other end withstands on the ladder surface, and the face that push rod (4) lower end contacts with rocking arm crossbeam (3) is arc shaped surface.
7. the vane motor of a kind of rocker structure according to claim 1 is characterized in that described spring (9) is positioned at the cylindrical cavity (63) at blade groove (61) two ends, and oil circuit and cylindrical cavity communicate.
8. the vane motor of a kind of rocker structure according to claim 1 is characterized in that described rocking arm crossbeam (3), is applicable to triple-cropping with above vane motor, and the slewing area of rocking arm crossbeam is that-30 degree are to 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110040366 CN102174901B (en) | 2011-02-18 | 2011-02-18 | Blade type hydraulic motor with rocker arm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110040366 CN102174901B (en) | 2011-02-18 | 2011-02-18 | Blade type hydraulic motor with rocker arm structure |
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| CN102174901A CN102174901A (en) | 2011-09-07 |
| CN102174901B true CN102174901B (en) | 2013-02-13 |
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| CN 201110040366 Active CN102174901B (en) | 2011-02-18 | 2011-02-18 | Blade type hydraulic motor with rocker arm structure |
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| CN108050011B (en) * | 2017-10-17 | 2019-09-10 | 武汉船用机械有限责任公司 | A kind of vane motor |
| CN107905934A (en) * | 2017-12-14 | 2018-04-13 | 浙江腾荣环保科技有限公司 | A kind of Simple hydraulic driving disc |
| CN108825430B (en) * | 2018-06-06 | 2023-11-21 | 毛晶 | Blade force transfer component and blade end gap control method thereof |
| CN114215682B (en) * | 2021-12-17 | 2023-11-14 | 武汉红轩船舶机械科技发展有限责任公司 | Large-torque vane type hydraulic motor |
| CN114906554A (en) * | 2022-07-15 | 2022-08-16 | 溧阳市创新机械有限公司 | Shaftless screw conveyor for high-temperature-resistant rotary kiln |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1078351A (en) * | 1964-04-23 | 1967-08-09 | William Harold Angrave | Improvements in or relating to rotary internal combustion engines |
| US3539281A (en) * | 1968-07-22 | 1970-11-10 | Ingersoll Rand Co | Sliding-vane rotary fluid displacement machine |
| US6599113B1 (en) * | 2002-02-01 | 2003-07-29 | Charles Matthew Lee | Independent vane rotary gas compressor |
| CN101680299A (en) * | 2008-04-17 | 2010-03-24 | 格雷泰克有限公司 | Rotary combustion engine and hydraulic motor |
| CN201747409U (en) * | 2010-08-06 | 2011-02-16 | 佳木斯大学 | Vane motor with rotary oil distribution device |
| CN202031655U (en) * | 2011-02-18 | 2011-11-09 | 宁波市恒通液压科技有限公司 | Blade-type hydraulic motor with rocker structure |
-
2011
- 2011-02-18 CN CN 201110040366 patent/CN102174901B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1078351A (en) * | 1964-04-23 | 1967-08-09 | William Harold Angrave | Improvements in or relating to rotary internal combustion engines |
| US3539281A (en) * | 1968-07-22 | 1970-11-10 | Ingersoll Rand Co | Sliding-vane rotary fluid displacement machine |
| US6599113B1 (en) * | 2002-02-01 | 2003-07-29 | Charles Matthew Lee | Independent vane rotary gas compressor |
| CN101680299A (en) * | 2008-04-17 | 2010-03-24 | 格雷泰克有限公司 | Rotary combustion engine and hydraulic motor |
| CN201747409U (en) * | 2010-08-06 | 2011-02-16 | 佳木斯大学 | Vane motor with rotary oil distribution device |
| CN202031655U (en) * | 2011-02-18 | 2011-11-09 | 宁波市恒通液压科技有限公司 | Blade-type hydraulic motor with rocker structure |
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Address after: 315207, 1, 1818 East Luo Lu, Zhenhai Town, Zhenhai District, Zhejiang, Ningbo Patentee after: NINGBO HENGTONG NUODA HYDRAULIC CO., LTD. Address before: 315103, 3, 10, Lingyun Road, 1177 hi tech Zone, Zhejiang, Ningbo Patentee before: Ningbo Helm Tower Hydraulic Motor Co., Ltd. |