CN100504063C - Pore-pin type cycloid rotor motor - Google Patents
Pore-pin type cycloid rotor motor Download PDFInfo
- Publication number
- CN100504063C CN100504063C CNB200710047615XA CN200710047615A CN100504063C CN 100504063 C CN100504063 C CN 100504063C CN B200710047615X A CNB200710047615X A CN B200710047615XA CN 200710047615 A CN200710047615 A CN 200710047615A CN 100504063 C CN100504063 C CN 100504063C
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- sleeve
- pin
- pintle
- rotor
- support
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Abstract
The invention relates to a hydraulic pressure cycloid rotor type motor structure. A hole pin type cycloid rotor motor, and comprises a front end cover (6), a machine seat (9), a rear end cover (12) and a flow distribution axle (10) positioned at the axle center of the machine seat (9), the invention is characterized in that the flow distribution axle (10) is extended into the casing body (7), and an inner rotator (2) is connected coaxially and fixedly; a short amplitude outer cycloid gear is arranged in the inner rotator (2); a plurality of sleeves (3) are embedded on the inner wall of the central cavity along the parallel operating plate (5); column pins (4) with the same number of the sleeves (3) are respectively penetrated into the sleeves (3), the diameter of the column pin (4) is smaller than the sleeve (3), the column pins (4) are vertically fixed on the machine seat (9) or the end covers (6) and (7), the distribution position on the plane of each column pin is the same as the sleeve (3), and the distance between the parallel operating plate (5) and the casing body (7) is larger than or equals to the diameter difference of the sleeve (3) and the column pin (4). The invention increases the displacement of the hydraulic motor; the torque and the speed are enhanced. The structure is simplified, the manufacturing process is improved, the cost is reduced, and the mechanical efficiency and the service life of the motor are enhanced.
Description
(1) technical field
The present invention is the hydraulic transmission motor, particularly relates to a kind of cycloid rotor type motor structure.
(2) background technique
Known, be illustrated in figure 1 as the planet cycloid rotator type motor of prior art, it mainly is made up of pintle, output shaft, housing, spline coupling, cycloid rotor, stator, forward and backward end cap.The cycloid rotor profile of tooth is a curtate epicycloid, and the stator profile of tooth is a circular arc.Has Z
1The cycloid rotor of individual tooth, i.e. outer tooth pinion and has Z
2The stator of individual tooth, promptly ring gear is meshed, and forms Z
2Individual enclosed volume.These enclosed volumes by pintle with connect into and out of hydraulic fluid port, pintle plays a part switch valve, is controlling into and out of being switched on or switched off of hydraulic fluid port and each enclosed volume, it makes above-mentioned Z
2In the individual enclosed volume nearly half is communicated with pressure oil, and remaining communicates with the low pressure oil return.
When pressure oil enters Z by pintle
2During/2 enclosed volumes, rotor pinion is under the pressure oil effect, by the direction rotation that hyperbaric chamber between cog volume is increased.Because stator is fixed, thus rotor when self axis is done the low speed rotation, rotor center is also done the high-speed reverse revolution around stator center.During revolution, its high pressure, oil-discharging cavity constantly change, but are that the boundary is divided into two chambeies all the time with the line of centers.The between cog volume of one side increases, and is hyperbaric chamber; The between cog volume of opposite side dwindles, and is oil-discharging cavity.Public affairs are goed around, tooth of rotation, and each between cog volume is finished once, the oil return circulation, and revolution is i=(Z with the speed ratio of rotation
1): 1.Spline coupling passes to output shaft with the spinning motion of rotor among the figure, can drag operation mechanism's rotation.Because output shaft itself is exactly a pintle, the just rotation synchronously of the continuous flow of pintle, hyperbaric chamber with the rotation of line of centers, and then make rotor and output shaft rotate continuously.
The discharge capacity of planet cycloid rotor motor is Z
2Epicyclodial wheel tooth root circle doubly and the ring-shaped cylinder volume between the top circle.The advantage of this motor is simple in structure, and volume is little, and is in light weight, and moment is big to the ratio of weight, uses reliably, and low-speed stability is good.Shortcoming is that velocity range is little, belongs to middle low speed, medium and small torque range because cycloid rotor adopts spline coupling to connect with output shaft and pintle, and the cycloid rotor throw of eccentric is very little, and discharge capacity is little, and output torque is little, and the cycloid rotor rotating speed can not be high.The manufacturing complexity that spline connects, the stator profile of tooth is a circular arc, its manufacturing is also complicated.
(3) summary of the invention
The objective of the invention is, improve the combination property of oil hydraulic motor, increase discharge capacity, improve moment of torsion, raising speed.Simplify the structure of motor, improve process for machining and manufacturing, reduce cost, reduce the fretting wear of motor, improve the mechanical efficiency and the working life of motor.
The objective of the invention is to be achieved through the following technical solutions:
A kind of pore-pin type cycloid rotor motor comprises front cover, support, rear end cover and is positioned at the pintle in support axle center, it is characterized in that,
Pintle stretches into housing, coaxial fixedly connected internal rotor;
Internal rotor is the curtate epicycloid gear, and internal rotor places in the cavity of translational disk;
Embed some sleeves along translational disk central cavity inwall;
The pin identical with sleeve quantity penetrates sleeve respectively, and the diameter of pin is less than sleeve, and the pin vertical fixing is on support or end cap, and each pin is identical with the position that sleeve distributes on the plane perpendicular to the support axis, corresponding dead in line;
Internal rotor with by the translational disk cavity inner wall and embed sleeve and constitute several independently tooth cavities, each tooth cavity communicates with pintle respectively by oil circuit, being communicated with into and out of hydraulic fluid port on pintle and support.
Distance between described translational disk and housing is poor more than or equal to the diameter of sleeve and pin.
Described housing is provided with backing plate between housing and machine between support and front cover.
The coaxial fixedly connected output shaft of the other end of described pintle.
The coaxial fixedly connected output shaft of the other end of described internal rotor.
Described support is being offered into and out of oil pipe into and out of the corresponding position of hydraulic fluid port with pintle.
The number of teeth that the sleeve number of described translational disk inwall is no more than the internal rotor epicycloidal gear at most adds 1.
Described pin external diameter equals 0.2-0.9 sleeve diameter.
The sleeve of described translational disk and inwall is an integral type.
Adopt technological scheme of the present invention, internal rotor curtate epicycloid gear, the pinwheel that is made of sleeve and translational disk is socketed on the internal rotor, and sleeve is the pin tooth, and the cylindrical of sleeve contacts with the internal rotor flank engagement, and pin contacts with the sleeve endoporus is tangent.
Produce a throw of eccentric between translational disk and the internal rotor because the diameter of pin less than sleeve, makes, have Z
1The internal rotor of individual tooth is with Z
2The pinwheel of individual pin tooth is meshed, and adds the cavity inner wall of translational disk, forms Z
2Individual enclosed volume.These enclosed volumes by pintle with connect into and out of hydraulic fluid port, pintle plays a part switch valve, is controlling into and out of being switched on or switched off of hydraulic fluid port and each enclosed volume, it makes above-mentioned Z
2In the individual enclosed volume nearly half is communicated with pressure oil, and remaining communicates with the low pressure oil return.
When pressure oil enters Z by pintle
2During/2 enclosed volumes, internal rotor rotates by the direction dead axle that hyperbaric chamber between cog volume is increased under the pressure oil effect.During rotation, its high pressure, the continuous conversion of oil-discharging cavity, but be that the boundary is divided into two chambeies with the line of centers of internal rotor and translation pinwheel all the time.The between cog volume of one side increases, and is hyperbaric chamber; The between cog volume of opposite side dwindles, and is oil-discharging cavity.Rotation of inner rotor passes to pintle and output shaft by mandrel, can drag operation mechanism's rotation.Because output shaft itself is exactly a pintle, the just rotation synchronously of the continuous flow of pintle, hyperbaric chamber with the rotation of line of centers, and then make internal rotor and output shaft rotate continuously.
The sleeve number of translational disk inwall can be less than the number of teeth of internal rotor epicycloidal gear morely, is commonly called as " taking out tooth ", forms the tooth cavity of sealing as long as can guarantee the tooth of sleeve and epicycloidal gear, gets final product at the both sides of line of centers formation high pressure, oil-discharging cavity.The number of teeth that the number of sleeve is no more than the internal rotor epicycloidal gear at most adds 1, otherwise can not form hyperbaric chamber and corresponding oil-discharging cavity.
The pin external diameter equals 0.2-0.9 sleeve diameter, can obtain the power of hunting range and motor preferably.
The sleeve of translational disk and inwall is an integral type, makes that processing is more simple and convenient.
The beneficial effect and the advantage that the invention provides technological scheme are:
1. save the spline coupling connection, can increase the throw of eccentric of pinwheel and internal rotor, increased discharge capacity, improved output torque.Simultaneously, can improve output speed.
2. saved the spline coupling connection, and adopted sleeve, simplified process for machining and manufacturing greatly, reduced manufacture cost as the pin tooth.
3. each tooth cavity be high-voltage oil cavity be again oil-discharging cavity, it is high-voltage oil cavity that a plurality of tooth cavities are wherein arranged, other has a plurality of tooth cavities is oil-discharging cavity, advances, oil extraction carries out simultaneously.Rotation along with line of centers, each tooth cavity is progressive continuously by being pressed into the process that oil (or oil extraction) changes oil extraction (or oil suction) over to, and whenever there is a tooth cavity to change oil extraction (or oil suction) over to by being pressed into oil (or oil extraction), just having another tooth cavity is changed over to by oil extraction (or oil suction) and is pressed into oil (or oil extraction), whole process all hockets continuously, so flowed fluctuation is little.
4. the internal rotor dead axle rotates, and the pinwheel translation has reduced the fretting wear of motor, improves the mechanical efficiency and the working life of motor.
5. each tooth cavity be pumping cavity be again oil-discharging cavity, after oil is pressed into, be discharged from again on the spot, no handling process has reduced loss in efficiency.
6. because flowed fluctuation is little, eliminated the influence of flowed fluctuation to the oil liquid pressure stationarity, helped reducing oil liquid pressure and impact, reduced noise, output torque is steady.
7. less demanding to hydraulic oil.
(4) description of drawings
Fig. 1 is the sectional view of the planetary rotor gerotor motor of prior art perpendicular to axis
Fig. 2 is the sectional view of the planetary rotor gerotor motor of prior art along axis
Fig. 3 is the sectional view of a kind of pore-pin type cycloid rotor motor of the present invention perpendicular to axis
Fig. 4 is the sectional view of a kind of pore-pin type cycloid rotor motor of the present invention along axis
A kind of pore-pin type cycloid rotor motor of Fig. 5 the present invention is perpendicular to the sectional view of axis
A kind of pore-pin type cycloid rotor motor of Fig. 6 the present invention is along the sectional view of axis
Among the figure, 1. mandrel, 2. internal rotor, 3. sleeve, 4. pin, 5. translational disk, 6. front cover, 7. housing, 8. backing plate, 9. support, 10. pintle, 11. output shafts, 12. rear end covers;
A, B. oil inlet and outlet, C. oil circuit.
(5) embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
Shown in Fig. 3,4, mainly form by parts such as mandrel 1, internal rotor 2, sleeve 3, pin 4, translational disk 5, front cover 6, housing 7, backing plate 8, support 9, pintle 10, output shaft 11 and rear end covers 12.Mandrel 1 one ends are connected with internal rotor 2 coaxial flat keys, and the other end is connected with the coaxial flat key of pintle.Translational disk 5 central authorities are cavity, and 7 sleeves 3 are embedded on the inner chamber of translational disk 5, constitute pinwheel with translational disk 5.7 pieces of pins 4 pass sleeve 3 and backing plate 8 is fixed on the support 9.Pin 4 diameters are less than sleeve 3.Sleeve 3 is identical with the distributing position of pin 4 on support 9.Output shaft 11 connects with pintle 10 and internal rotor 2 coaxial flat keys.Support 9 has oil inlet and outlet A and B, and oil circuit C.Internal rotor 2, sleeve 3 and translational disk 5 cavity inner walls constitute 7 independently tooth cavities, and each tooth cavity communicates with pintle 10 respectively by oil circuit C, being communicated with into and out of hydraulic fluid port A, B on pintle and support 9.Internal rotor 2 is the curtate epicycloid gear, and the pinwheel that is made of sleeve 3 and translational disk 5 is socketed on the internal rotor 2.The cylindrical of sleeve 3 contacts with the internal rotor flank engagement.Pin 4 and tangent contact of sleeve 3 endoporus.During the oil hydraulic pump running, internal rotor rotates, the pinwheel translation.
Working principle: between internal rotor 2 and the pinwheel center throw of eccentric is arranged, have Z
1The internal rotor 2 of individual tooth is with Z
2The pinwheel of individual pin tooth is meshed, and adds the cavity inner wall of translational disk 5, forms Z
2Individual enclosed volume.These enclosed volumes by pintle with connect into and out of hydraulic fluid port, pintle plays a part switch valve, is controlling into and out of being switched on or switched off of hydraulic fluid port and each enclosed volume, it makes above-mentioned Z
2In the individual enclosed volume nearly half is communicated with pressure oil, and remaining communicates with the low pressure oil return.
When pressure oil enters Z by pintle
2During/2 enclosed volumes, internal rotor rotates by the direction dead axle that hyperbaric chamber between cog volume is increased under the pressure oil effect.During rotation, its high pressure, the continuous conversion of oil-discharging cavity, but all the time with the line of centers O of internal rotor and translation pinwheel
1O
2For the boundary is divided into two chambeies.The between cog volume of one side increases, and is hyperbaric chamber; The between cog volume of opposite side dwindles, and is oil-discharging cavity.Rotation of inner rotor passes to pintle 10 and output shaft 11 by mandrel 1, can drag operation mechanism's rotation.Because output shaft itself is exactly a pintle, the continuous flow of pintle, hyperbaric chamber are just with line of centers O
1O
2Rotation and rotation synchronously and then makes internal rotor and output shaft rotate continuously.
Embodiment 2:
Its structure is shown in Fig. 5,6.Directly by the rotation output power of internal rotor 2, this structure is less to the moment of torsion that pintle 11 produces, and is less to the influence of appliance arrangement for its output shaft 1 and internal rotor 2 coaxial fixedlying connected, output shaft 1, and the life-span of favourable orbit motor of the present invention and precision are safeguarded.Other parts are identical with embodiment 1 with structure, repeat no more.
Claims (8)
1. pore-pin type cycloid rotor motor comprises front cover (6), support (9), rear end cover (12) and is positioned at the pintle (10) in support (9) axle center, it is characterized in that:
Pintle (10) stretches into housing (7), coaxial fixedly connected internal rotor (2);
Internal rotor (2) is the curtate epicycloid gear, and internal rotor (2) places in the cavity of translational disk (5);
Embed some sleeves (3) along translational disk (5) central cavity inwall;
The pin (4) identical with sleeve (3) quantity penetrates sleeve (3) respectively, the diameter of pin (4) is less than sleeve (3), pin (4) vertical fixing is on support (9) or end cap (6), each pin (4) is identical with the position that sleeve (3) distributes on the plane perpendicular to support (9) axis, corresponding dead in line;
Internal rotor (2) with by translational disk (5) cavity inner wall and embed sleeve (3) and constitute several independently tooth cavities, each tooth cavity communicates with pintle (10) respectively by oil circuit (C), is communicated with filler opening (A), oil outlet (B) on the support (9) through pintle (10).
Distance between translational disk (5) and housing (7) is poor more than or equal to the diameter of sleeve (3) and pin (4).
2. rotor motor according to claim 1 is characterized in that described housing (7) is positioned between support (9) and the front cover (6), is provided with backing plate (8) between housing (7) and support (9).
3. rotor motor according to claim 1 is characterized in that the coaxial fixedly connected output shaft of the other end (11) of described pintle (10).
4. rotor motor according to claim 1 is characterized in that the coaxial fixedly connected output shaft of the other end (11) of described internal rotor (2).
5. rotor motor according to claim 1 is characterized in that described support (9) offering into and out of oil pipe into and out of the corresponding position of hydraulic fluid port (A), (B) with pintle (10).
6. rotor motor according to claim 1, the number of teeth that sleeve (3) number that it is characterized in that described translational disk (5) inwall is no more than the internal rotor epicycloidal gear at most adds 1.
7. rotor motor according to claim 1 is characterized in that described pin (4) external diameter equals 0.2-0.9 sleeve (3) internal diameter.
8. rotor motor according to claim 1 is characterized in that the described translational disk (5) and the sleeve (3) of inwall are integral type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710047615XA CN100504063C (en) | 2007-10-31 | 2007-10-31 | Pore-pin type cycloid rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710047615XA CN100504063C (en) | 2007-10-31 | 2007-10-31 | Pore-pin type cycloid rotor motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144461A CN101144461A (en) | 2008-03-19 |
| CN100504063C true CN100504063C (en) | 2009-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710047615XA Expired - Fee Related CN100504063C (en) | 2007-10-31 | 2007-10-31 | Pore-pin type cycloid rotor motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN100504063C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608617B (en) * | 2008-06-20 | 2012-07-25 | 安徽理工大学 | Internally-geared low-pulsation gear pump |
| CN103671465B (en) * | 2014-01-17 | 2015-10-21 | 镇江大力液压马达股份有限公司 | A kind of cycloid hydraulic motor output shaft and processing method thereof |
| CN113107823A (en) * | 2021-05-28 | 2021-07-13 | 上海浩平机电设备有限公司 | Oil pump variable mechanism adopting hydraulic screw rod and control method thereof |
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- 2007-10-31 CN CNB200710047615XA patent/CN100504063C/en not_active Expired - Fee Related
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| CN101144461A (en) | 2008-03-19 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20121031 |