阅读说明：本技术 液压马达 (Hydraulic motor ) 是由 刘行兵 于 2018-05-25 设计创作，主要内容包括：本发明提供了一种液压马达,包括相互配合的转子和定子；转子和定子相互抵接并形成液压缸,液压缸的内壁受到液体压力时,液压缸处于转子上的部分内壁受到周向旋转力,以使转子相对于定子转动。本发明的技术方案有效地解决了现有技术中的液压马达在工作及拆卸维护时会伴随着较多的液体损耗和污染进而消耗了较多液压原动力机功率的问题。(The present invention provides a kind of hydraulic motors, including mutually matched rotor and stator；Rotor and stator mutually abut and are formed hydraulic cylinder, and when the inner wall of hydraulic cylinder is by fluid pressure, the internal partial wall that hydraulic cylinder is on rotor is rotated in a circumferential direction power, so that rotor is relative to stator rotation.Technical solution of the present invention efficiently solves the problems, such as that hydraulic motor in the prior art can consume in turn more hydraulic Movers power along with more fluid loss and pollution in work and demolition and maintenance.)

1. a kind of hydraulic motor, which is characterized in that including mutually matched rotor (10) and stator (20)；

The rotor (10) and the stator (20) are mutually abutted and are formed hydraulic cylinder (30), the inner wall of the hydraulic cylinder (30) by When to fluid pressure, the part inner wall that the hydraulic cylinder (30) is on the rotor (10) is rotated in a circumferential direction power, with Rotate the rotor (10) relative to the stator (20).

2. hydraulic motor according to claim 1, which is characterized in that the rotor (10) includes the first contact face (11), at least one first groove (12) is circumferentially offered on first contact face (11)；

The stator (20) includes the second contact face (21) to offset with first contact face (11), second contact The second groove (22) with first groove (12) cooperation is offered on end face (21).

3. hydraulic motor according to claim 2, which is characterized in that the hydraulic motor further includes making the rotor (10) Axial support (70) close to the stator (20), to generate axial support force to rotor (10).

4. hydraulic motor according to claim 3, which is characterized in that the axial support (70) is elastic component, with logical Crossing elastic force makes the rotor (10) close to the stator (20) or the axial support (70) to be Hydraulic Elements, to pass through Hydraulic coupling makes the rotor (10) close to the stator (20).

5. hydraulic motor according to claim 3, which is characterized in that first groove (12) has multiple stress Face；When the hydraulic cylinder (30) is by the fluid pressure, first groove (12) is kept the rotor (10) separate The axial force of the stator (20) and the power that rotates in a circumferential direction for rotating the rotor (10)；It is described axial direction support force be greater than or Equal to the axial force, to offset the axial force and the rotor (10) made to offset with the stator (20).

6. hydraulic motor according to claim 5, which is characterized in that more when first groove (12) is set as multiple The circumferentially spaced uniform arrangement of a first groove (12), the power side that rotates in a circumferential direction that multiple first grooves (12) are subject to To consistent.

7. hydraulic motor according to claim 2, which is characterized in that the hydraulic cylinder (30) include cylinder main body, with The import (31) of cylinder main body connection and export (32), the cylinder main body by first groove (12) with it is described Second groove (22) cooperatively forms.

8. hydraulic motor according to claim 7, which is characterized in that the import (31) and second groove (22) are even It is logical, so that liquid enters the second groove (22).

9. hydraulic motor according to claim 7, which is characterized in that second contact face (21) is provided at least one A pressure relief groove (23), the pressure relief groove (23) is connected to the outlet (32), to reduce the liquid in the cylinder main body Simultaneously surplus liquid is discharged for body pressure.

10. hydraulic motor according to claim 1, which is characterized in that between the stator (20) and the rotor (10) Thrust bearing (40) are provided with, to reduce the frictional force between the rotor (10) and the stator (20).

11. hydraulic motor according to any one of claim 1 to 10, which is characterized in that connected on the rotor (10) Having transmission shaft (50), the rotor (10) is connect with the transmission shaft (50) by universal joint or spherical adjustment part (51), with Keep the axis intersection clip point and/or axis angle of intersection of the rotor (10) and the transmission shaft (50) adjustable.

12. hydraulic motor according to claim 11, which is characterized in that the spherical adjustment part (51) and the rotor (10) slide card component is provided between, the slide card component includes being separately positioned on the spherical adjustment part (51) and the rotor (10) mutually matched arc chute and arc-shaped slide rail on turn to avoid the rotor (10) around the transmission shaft (50) relatively It is dynamic.

13. hydraulic motor according to claim 12, which is characterized in that the spherical adjustment part (51) and the rotor (10) multiple steel balls are provided between, to reduce the frictional force between the spherical adjustment part (51) and the rotor (10).

14. hydraulic motor according to claim 11, which is characterized in that the hydraulic motor further includes making the rotor (10) close to the axial support (70) of the stator (20), the edge of the stator (20) extends to the rotor (10) direction It is formed rotor mounting groove (60), the notch of the rotor mounting groove (60) is provided with cover board (61), the axial support (70) It is arranged between the transmission shaft (50) and the spherical adjustment part (51)；Or

The axial support (70) is arranged between the cover board (61) and the spherical adjustment part (51)；Or

The axial support (70) is arranged between the cover board (61) and the rotor (10) so that the rotor (10) by To make its close to the axial support force of the stator (20).

15. hydraulic motor according to claim 14, which is characterized in that first shaft hole is offered on the cover board (61), The second axis hole is offered in the middle part of the stator (20), the transmission shaft (50) includes the first transmission with first shaft hole cooperation Axis (50) and second driving shaft (50) with second shaft hole matching.

16. hydraulic motor according to claim 15, which is characterized in that the first shaft hole and first transmission shaft (50) it being connected by first bearing, the first shaft hole is provided with first bearing gland on the end face far from the stator (20), To prevent the first bearing from deviating from；

Second axis hole is connect with the second driving shaft (50) by second bearing, and second axis hole is far from the rotor (10) second bearing gland is provided on end face, to prevent the second bearing from deviating from.

17. hydraulic motor according to claim 16, which is characterized in that the first bearing is at least provided with one, institute When stating first bearing and being provided with multiple, what at least one described first bearing was set as mutually being clamped with the transmission shaft (50) Tapered roller bearing；

The second bearing is at least provided with one, when the second bearing is provided with multiple, at least one described second axis Hold the angular contact bearing for being set as mutually being clamped with the transmission shaft (50).

18. hydraulic motor according to claim 2, which is characterized in that rotor (10) tool connects there are two described first Contravention face (11), to cooperate two stators (20) simultaneously, the edge of the stator (20) prolongs to the rotor (10) direction It stretches to be formed rotor mounting groove (60), the rotor mounting groove (60) that two stators (20) are formed, which is mutually butted and is formed, to be turned Sub (10) installation cavity.

19. hydraulic motor according to claim 18, which is characterized in that can connect simultaneously in rotor (10) installation cavity And/or multiple groups rotor (10) in parallel, at least partly the hydraulic circuit of the rotor (10) is connected.

20. hydraulic motor according to claim 11, which is characterized in that the rotor (10) and the stator (20) can Conversion.

Technical field

The present invention relates to technical field of mechanical power equipment, in particular to a kind of hydraulic motor.

Background technique

Hydraulic motor has many advantages, such as that small in size, specific power density is big, power is high, the range of speeds is wide, thus obtains It is widely applied, as industrial and agricultural development level raising application will more extensively.

Existing plunger, gear, vane motor power and liquid input flow rate are related, the practical stream of hydraulic motor Amount is equal to discharge capacity and adds leakage rate, and hydraulic motor displacement is bigger, and input flow rate is bigger, and the efficiency that hydraulic motor is converted into mechanical energy is logical Hydraulic Movers efficiency can be often less than, existing hydraulic motor is that stator is made into cylinder body, and rotor is then placed in injection liquid It is such to be not easy to save along with more fluid loss and pollution when work and demolition and maintenance are arranged in the cylinder body of body Can be environmentally friendly, while the cylinder body for being full of liquid can generate larger resistance to rotor, and more energy are consumed in conversion process of energy, Therefore to more hydraulic Movers power can be consumed.

Summary of the invention

The main purpose of the present invention is to provide a kind of hydraulic motors, are being worked with solving hydraulic motor in the prior art And it along with more fluid loss and can be polluted the problem of consuming more hydraulic Movers power in turn when demolition and maintenance.

To achieve the goals above, it according to an aspect of the invention, there is provided a kind of hydraulic motor, including cooperates Rotor and stator；Rotor and stator mutually abut and are formed hydraulic cylinder, when the inner wall of hydraulic cylinder is by fluid pressure, hydraulic cylinder Internal partial wall on rotor is rotated in a circumferential direction power, so that rotor is relative to stator rotation.

Further, rotor includes the first contact face, and it is first recessed that at least one is circumferentially offered in the first contact face Slot；Stator includes the second contact face to offset with the first contact face, offers in the second contact face and matches with the first groove The second groove closed.

Further, hydraulic motor further includes the axial support for making rotor close to stator, to generate axial branch to rotor Support force.

Further, axial support is elastic component, to make the rotor be close to stator or axial support by elastic force Hydraulic Elements, to make rotor close to stator by hydraulic coupling.

Further, the first groove has multiple stress surfaces；When hydraulic cylinder is by fluid pressure, the first groove by The power that rotates in a circumferential direction for making axial force of the rotor far from stator and rotating rotor；Axial support force is greater than or equal to axial make Firmly, to offset axial force and rotor is made to offset with stator.

Further, when the first groove is set as multiple, the circumferentially spaced uniform arrangement of multiple first grooves, Duo Ge What one groove was subject to rotate in a circumferential direction, and power direction is consistent.

Further, hydraulic cylinder include cylinder main body, the inlet and outlet that is connected to cylinder main body, cylinder main body It is cooperatively formed by the first groove and the second groove.

Further, import is connected to the second groove, so that liquid enters the second groove.

Further, the second contact face is provided at least one pressure relief groove, pressure relief groove and outlet, hydraulic to reduce Simultaneously surplus liquid is discharged for the intracorporal fluid pressure of cylinder master.

Further, thrust bearing is provided between stator and rotor, to reduce the frictional force between rotor and stator.

Further, transmission shaft is connected on rotor, rotor is connect with transmission shaft by universal joint or spherical adjustment part, So that the axis intersection clip point and/or axis angle of intersection of rotor and transmission shaft are adjustable.

Further, slide card component is provided between spherical adjustment part and rotor, slide card component includes being separately positioned on ball Mutually matched arc chute and arc-shaped slide rail on shape regulating part and rotor relatively rotate to avoid rotor around transmission shaft.

Further, multiple steel balls are provided between spherical adjustment part and rotor, with reduce spherical adjustment part and rotor it Between frictional force.

Further, hydraulic motor further includes the axial support for making rotor close to stator, and the edge of stator is to rotor side To rotor mounting groove is extended to form, the notch of rotor mounting groove is provided with cover board, and axial support is arranged in transmission shaft and spherical shape Between regulating part；Or axial support is arranged between cover board and spherical adjustment part；Or axial support is arranged in cover board Between rotor, so that rotor is by making its axial support force close to stator.

Further, first shaft hole is offered on cover board, offers the second axis hole in the middle part of stator, transmission shaft includes and first First transmission shaft of shaft hole matching and second driving shaft with the second shaft hole matching.

Further, first shaft hole is connect with the first transmission shaft by first bearing, end face of the first shaft hole far from stator On be provided with first bearing gland, to prevent first bearing from deviating from；Second axis hole is connect with second driving shaft by second bearing, Second axis hole is far from second bearing gland is provided on the end face of rotor, to prevent second bearing from deviating from.

Further, first bearing is at least provided with one, when first bearing is provided with multiple, at least one first axle Hold the tapered roller bearing for being set as mutually being clamped with transmission shaft；At least provided with one, second bearing is provided with second bearing When multiple, at least one second bearing is set as the angular contact bearing being mutually clamped with transmission shaft.

Further, rotor tool is there are two the first contact face, and to cooperate two stators simultaneously, the edge of stator is to rotor Direction extends to form rotor mounting groove, and the rotor mounting groove that two stators are formed is mutually butted and forms rotor installation cavity.

Further, it can connect simultaneously in rotor installation cavity and/or multiple groups rotor in parallel, at least partly rotor is hydraulic Oil circuit is connected.

Further, rotor and stator can be converted.

It applies the technical scheme of the present invention, rotor and stator mutually abut after forming hydraulic cylinder, can be by hydraulic motive power The fluid pressure that machine provides acts directly on the inner wall of hydraulic cylinder, hydraulic cylinder inner wall by fluid pressure after, be in rotor On internal partial wall just will receive the power that rotates in a circumferential direction, and then make rotor relative to stator rotation.Meanwhile volume when hydraulic cylinder works It immobilizes, hydraulic cylinder can save liquid to prepare for the next use after not working, and can input when reusing in this way Few quantity of fluid works, and few quantity of fluid refers to liquid leakage and the unloading pressure damage of compensation rotor and seal stator state The liquid of mistake.Rotor need not be placed in the cylinder body for being full of liquid by such setting, and whens demolition and maintenance is smaller to fluid loss, and Too big pollution is not will cause.Rotor itself when due to work not will receive the resistance of liquid, resistance of the liquid to rotor It is smaller, and then the consumption of hydraulic Movers power can be reduced.Technical solution of the present invention efficiently solves the prior art In hydraulic motor along with more fluid loss and can pollute and then consume more hydraulic in work and demolition and maintenance The problem of Movers power.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:

Fig. 1 shows the structural schematic diagram of the working principle of hydraulic motor according to the present invention；

Fig. 2 shows the structural schematic diagrams of the rotor of hydraulic motor of the invention；

Fig. 3 shows the structural schematic diagram of the stator of hydraulic motor of the invention；

Fig. 4 shows the structural schematic diagram of the embodiment one of hydraulic motor of the invention；

Fig. 5 shows the structural schematic diagram of the embodiment two of hydraulic motor of the invention；

Fig. 6 shows the sectional view of the embodiment three of hydraulic motor of the invention；And

Fig. 7 shows the longitudinal section view of the embodiment three of hydraulic motor of the invention.

Wherein, the above drawings include the following reference numerals:

10, rotor；11, the first contact face；12, the first groove；20, stator；21, the second contact face；22, second is recessed Slot；23, pressure relief groove；30, hydraulic cylinder；31, import；32, it exports；40, thrust bearing；50, transmission shaft；51, spherical adjustment part； 52, transmission gear；60, rotor mounting groove；61, cover board；70, axial support；80, output shaft；81, output gear.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.

Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein Formula.It should be understood that it is thoroughly and complete to these embodiments are provided so that disclosure herein, and these are shown The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, expands layer With the thickness in region, and make that identical device is presented with like reference characters, thus description of them will be omitted.

As shown in Figures 1 to 4, a kind of hydraulic motor, including mutually matched rotor 10 and stator 20.Rotor 10 and stator 20 mutually abut and are formed hydraulic cylinder 30, and when the inner wall of hydraulic cylinder 30 is by fluid pressure, hydraulic cylinder 30 is on rotor 10 Internal partial wall is rotated in a circumferential direction power, so that rotor 10 is rotated relative to stator 20.

It, can be by liquid after the mutual abutting of the technical solution of Application Example one, rotor 10 and stator 20 forms hydraulic cylinder 30 The fluid pressure that pressure Movers provide acts directly on the inner wall of hydraulic cylinder 30, hydraulic cylinder 30 inner wall by fluid pressure Afterwards, the internal partial wall on rotor 10 just will receive the power that rotates in a circumferential direction, and then rotate rotor 10 relative to stator 20.Together When, volume immobilizes when hydraulic cylinder works, and hydraulic cylinder can save liquid to prepare for the next use, in this way again after not working Few quantity of fluid can be inputted when secondary use to work, few quantity of fluid refers to compensation rotor 10 and 20 sealing state of stator Liquid leakage and unloading pressure loss liquid.Rotor 10 need not be placed in the cylinder body for being full of liquid by such setting, be torn open It unloads smaller to fluid loss when maintenance, and not will cause too big pollution.Since rotor 10 itself not will receive the resistance of liquid, because This liquid is smaller to the resistance of rotor 10, and then can reduce the consumption of hydraulic Movers power.The technical side of embodiment one Case efficiently solve hydraulic motor in the prior art in work and demolition and maintenance can along with more fluid loss and The problem of polluting and then consuming more hydraulic Movers power.

As shown in Figures 1 to 4, in the technical solution of embodiment one, rotor 10 includes the first contact face 11, and first connects At least one first groove 12 is circumferentially offered on contravention face 11.Stator 20 includes that second to offset with the first contact face 11 connects Contravention face 21 offers the second groove 22 with the cooperation of the first groove 12 in second contact face 21.Rotor 10 in above structure On the first contact face 11 on circumferentially offer at least one first groove 12, the first groove 12 can open up into surrounding rotor One class annular groove of 10 axis can also open up into multiple grooves separately of the axis of surrounding rotor 10.Stator The second groove 22 with the cooperation of the first groove 12 is offered on 20, opening up for the second groove 22 is to be formed with the first groove 12 Hydraulic cylinder 30.

As shown in Figures 1 to 4, in the technical solution of embodiment one, hydraulic motor further includes making rotor 10 close to stator 20 axial support 70, to generate axial support force to rotor 10.The setting of axial support 70 is used to apply rotor 10 Axial support force, rotor 10 not only will receive the power that rotates in a circumferential direction for rotating rotor 10 when receiving fluid pressure, and can be by To make rotor 10 far from the active force of stator 20, the setting of axial support 70 be exactly in order to offset and balance this active force, So that rotor 10 only remains the power that rotates in a circumferential direction and works to rotor 10, to realize the rotation of rotor 10.

As shown in Figures 1 to 4, in the technical solution of embodiment one, axial support 70 is elastic component, to pass through elastic force Rotor 10 is set close to stator 20 or axial support 70 to be Hydraulic Elements, to make rotor 10 close to stator 20 by hydraulic coupling. After axial support 70 is set as elastic component, the elastic force that can use elastic component applies lasting elastic reaction to rotor 10 Power, so that rotor 10 offsets with stator 20 always.Specifically, elastic component can be set to spring, preferably butterfly spring.Into one Step ground can be arranged adjustment structure on elastic component again, is adjusted with the elastic force to elastic component.For example, in rotor 10 and stator 20 when there is relative wear, and the elastic force of elastic component can be increased by adjustment structure, and then increases axial support force.Adjustment structure It can be set to act on the adjusting bolt on elastic component.

When axial support 70 is arranged to Hydraulic Elements, it can use the fluid pressure that hydraulic Movers generate and come Apply axial support force；Further, the Hydraulic Elements at this are connected with hydraulic cylinder 30, so as to received in hydraulic cylinder 30 When fluid pressure increases, the axial support force that Hydraulic Elements generate will also increase, to avoid rotor 10 equal at various speeds It can be tightly abutted against with stator 20, reduce the leakage of liquid.Hydraulic Elements can be set to single-action piston cylinder or double acting Piston cylinder.

As shown in Figures 1 to 4, in the technical solution of embodiment one, the first groove 12 has multiple stress surfaces.Work as liquid When cylinder pressure 30 is by fluid pressure, the first groove 12 is by making axial force of the rotor 10 far from stator 20 and to make 10 turns of rotor The dynamic power that rotates in a circumferential direction.Axial support force is greater than or equal to axial force, to offset axial force and make rotor 10 and determine Son 20 offsets.Fluid pressure suffered by multiple stress surfaces in above structure in the first groove 12, which can resolve into, makes rotor 10 The axial force of separate stator 20 and the power that rotates in a circumferential direction for rotating rotor 10.Wherein, axial force is axially supported power Offset, only it is surplus rotate in a circumferential direction power under the action of rotor 10 be equivalent to stator 20 and rotate.When axial support force is greater than axial make When firmly, extra axial support force can make rotor 10 tightly hold out against stator 20, realize the sealing between hydraulic cylinder 30.First is recessed The structure of slot 12 is preferably arranged to " C " connected in star of groove or other force unbalances similar to 3-D triangle, can also To be set as the other structures of Whole power force unbalance.

Specifically, the different face of angle, the face a as shown in Figure 1 and b are set at least provided with two in the first groove 12 Face, when in the first groove 12 by fluid pressure, by the directed force F 2 for rotating rotor, the face b is kept rotor separate in the face a The directed force F 1 of stator 20, at this time in the technical solution of axial support 70, hydraulic cylinder 30 include 30 main body of hydraulic cylinder, with it is hydraulic The import 31 and outlet 32 of 30 main body of cylinder connection, 30 main body of hydraulic cylinder is cooperatively formed by the first groove 12 and the second groove 22.On It states 30 main body of hydraulic cylinder in structure to be cooperatively formed by the first groove 12 and the second groove 22, the import being connected to 30 main body of hydraulic cylinder 31 and export 32 setting can be connected to hydraulic Movers, with to 30 main body of hydraulic cylinder offer fluid pressure, specifically, into Mouth 31 is connected to hydraulic Movers, and 30 main body of hydraulic cylinder is discharged in excessive liquid by outlet 32.Import 31 and outlet 32 can be with It is arranged on rotor 10 and/or stator 20, preferably import 31 and outlet 32 is arranged on stator 20.Further, import 31 are connected to the second groove 22, so that liquid enters the second groove 22.

As shown in Figures 1 to 4, in the technical solution of embodiment one, the second contact face 21 is provided at least one and unloads Indent 23, pressure relief groove 23 are connected to outlet 32, to reduce the main intracorporal fluid pressure of hydraulic cylinder 30 and surplus liquid is discharged.Tool Body, pressure relief groove 23 can be set to two, and the notch of pressure relief groove 23 is set as fan annular, so that pressure relief groove 23 can be right simultaneously Multiple first grooves 12 carry out pressure release, and then avoid the superposition of fluid pressure, avoid excessive liquid leakage.

As shown in Figures 1 to 4, in the technical solution of embodiment one, thrust shaft is provided between stator 20 and rotor 10 40 are held, to reduce the frictional force between rotor 10 and stator 20.The week in rotor 10 and stator 20 can be set in thrust bearing 40 To outer rim, biggish frictional force is generated to avoid excessive axial support force.The setting of thrust bearing 40 can make rotor 10 with Rotation between stator 20 is more smooth.

As shown in Figures 1 to 4, in the technical solution of embodiment one, be connected with transmission shaft 50 on rotor 10, rotor 10 with Transmission shaft 50 is connected by universal joint or spherical adjustment part 51 so that the axis intersection clip point of rotor 10 and transmission shaft 50 and/ Or axis angle of intersection is adjustable.Axial support force suffered by rotor 10 is provided by transmission shaft 50, rotor 10 and transmission shaft 50 After being connected by universal joint or spherical adjustment part 51, transmission shaft 50 can be adjusted relative to rotor 10, and then make to turn The axis intersection clip point and/or axis angle of intersection of son 10 and transmission shaft 50 are adjustable, specifically, as shown in Figure 1,10 He of rotor The axis intersection clip point of transmission shaft 50 is O, and the axis intersection clip angle of rotor 10 and transmission shaft 50 is β 1, that is, the position of O And the size of β 1 is adjustable.Above-mentioned setting can be such that the direction of transmission shaft 50 is adjusted, more complicated to adapt to Operating condition, for example, the shaft and transmission shaft 50 for needing to connect have the case where certain deviation, can lead at this time after hydraulic motor installation It crosses and transmission shaft 50 is finely adjusted so that hydraulic motor is more preferable to export.It is preferred that being adjusted using ball link.Transmission shaft Keyway is offered on 50, and key is installed on the keyway.

It is worth noting that, under normal circumstances in order to make the rotation of rotor 10 more smooth, the pivot center of rotor 10 At an angle with the pivot center of transmission shaft 50, specific angle is determined by experiment, and can be set between 1≤90 ° of 0 °≤β, It is preferred that 15 °, 20 °, 30 °, 45 °, 60 ° or 75 °.

As shown in Figures 1 to 4, it in the technical solution of embodiment one, is provided between spherical adjustment part 51 and rotor 10 Slide card component, slide card component include being separately positioned on mutually matched arc chute and arc on spherical adjustment part 51 and rotor 10 Sliding rail relatively rotates to avoid rotor 10 around transmission shaft 50.The setting of slide card component can be to avoid rotor 10 around transmission shaft 50 Axis relatively rotates, and the structure of slide card component is similar with the structure of 50 tooth of transmission shaft, so that spherical adjustment part 51 can be arcuately The setting direction of sliding slot and arc-shaped slide rail is slided and rotor 10 is avoided to relatively rotate around the axis of transmission shaft 50.Further Ground is provided with multiple steel balls between spherical adjustment part 51 and rotor 10, to reduce rubbing between spherical adjustment part 51 and rotor 10 Wipe power.Alloing spherical adjustment part 51, arcuately the setting direction of sliding slot and arc-shaped slide rail is slided more smooth, and can keep away Exempt from the mutual abrasion between ball link and rotor 10.It can also be arranged at least between arc chute and arc-shaped slide rail simultaneously One steel ball, to reduce the frictional force between arc chute and arc-shaped slide rail.

As shown in Figures 1 to 4, in the technical solution of embodiment one, the edge of stator 20 extends shape to 10 direction of rotor At rotor mounting groove 60, the notch of rotor mounting groove 60 is provided with cover board 61, and axial support 70 is arranged in transmission shaft 50 and ball Between shape regulating part 51.Or axial support 70 is arranged between cover board 61 and spherical adjustment part 51.Or axial support 70 are arranged between cover board 61 and rotor 10, so that rotor 10 is by making its axial support force close to stator 20.It is preferred that by axis It is arranged to supporting element 70 and passes through biography between transmission shaft 50 and spherical adjustment part 51, while by transmission shaft 50 and spherical adjustment part 51 50 tooth of moving axis is connected, and avoids the relative rotation between transmission shaft 50 and spherical adjustment part 51.Cover board 61 passes through bolt and stator 20 It is fixedly connected, is provided with sealing ring between cover board 61 and stator 20.Drain pan, drain pan are offered on stator 20 or cover board 61 On be provided with opening and closing valve.

As shown in Figures 1 to 4, in the technical solution of embodiment one, first shaft hole is offered on cover board 61, in stator 20 Portion offers the second axis hole, and transmission shaft 50 includes the with the first transmission shaft 50 of first shaft hole cooperation and with the second shaft hole matching Two transmission shafts 50.The first transmission shaft 50 and second driving shaft 50 in above structure can be used as output revolving shaft, can also be only One transmission shaft 50 is set, it can there are two the hydraulic of transmission shaft 50 or only one transmission shaft 50 according to specific open selection tool Motor.

As shown in Figures 1 to 4, in the technical solution of embodiment one, first shaft hole and the first transmission shaft 50 pass through first Bearing connection, first shaft hole is provided with first bearing gland on the end face far from stator 20, to prevent first bearing from deviating from.Second Axis hole is connect with second driving shaft 50 by second bearing, and the second axis hole is provided with second bearing pressure on the end face far from rotor 10 Lid, to prevent second bearing from deviating from.Further, sealing ring, the first transmission shaft are set between first bearing gland and cover board 61 Sealing ring is provided between 50 and first bearing gland；Second bearing gland is identical as the set-up mode of first bearing gland.The One bearing gland passes through bolt with second bearing gland and is fixedly connected respectively with cover board 61 and stator 20.

As shown in Figures 1 to 4, in the technical solution of embodiment one, first bearing is at least provided with one, first bearing When being provided with multiple, at least one first bearing is set as the tapered roller bearing being mutually clamped with transmission shaft 50.Second axis It holds at least provided with one, when second bearing is provided with multiple, at least one second bearing is set as mutual with transmission shaft 50 The angular contact bearing of clamping.Two first bearings are preferably provided with, first bearing includes double row angular contact bearing and taper roller axis It holds, the first transmission shaft 50 is rotatablely connected by tapered roller bearing with cover board 61 and is mutually clamped；It is preferably provided with two the second axis It holds, second bearing includes double row angular contact bearing and single-row angular contact bearing, and the first transmission shaft 50 passes through single-row angle with stator 20 Contact bearing is rotatablely connected and is mutually clamped.