CN204061043U - A kind of axial piston motor housing structure - Google Patents
A kind of axial piston motor housing structure Download PDFInfo
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- CN204061043U CN204061043U CN201420444440.1U CN201420444440U CN204061043U CN 204061043 U CN204061043 U CN 204061043U CN 201420444440 U CN201420444440 U CN 201420444440U CN 204061043 U CN204061043 U CN 204061043U
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- cylinder body
- mounting hole
- transmission shaft
- spherical hinge
- sphere
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- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 241001347978 Major minor Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012850 fabricated material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of axial piston motor housing structure, cylinder body is provided with the mounting hole for assembling transmission shaft and plunger piston slippery boots assembly, it is characterized in that, cylinder body is provided with spherical hinge structure for the outside of the mounting hole assembling transmission shaft, the outside of spherical hinge structure is sphere, and this sphere matches with return plate, swash plate; The mounting hole for assembling transmission shaft is provided with in spherical hinge structure.Traditional cylinder body and ball pivot require to be designed to one according to entirety by the utility model, it is under the requirement not affecting product quality and performances, the design of a spheric structure is increased in traditional cylinder body right side, the design of this structure can reach the cylinder body of conventional construction and the effect of ball pivot, reduce the processing request of part simultaneously, decrease the kind of Assembly part, reduce the consuming cost of whole product.
Description
Technical field
The utility model relates to a kind of design of axial piston motor cylinder body, is specifically related to the structure that a kind of cylinder body and ball pivot are designed to one.
Background technique
Axial piston motor is a kind of hydraulic actuator pressure energy of liquid being converted into mechanical energy, this motor has compact structure, radial dimension is little, rotary inertia is little, rotating speed is high, high pressure resistant, be easy to variable, can by advantages such as various ways flow automatic regulations, axial piston motor Applicable scope is comparatively wide, is widely used in the fields such as engineering machinery, Transport Machinery, metallurgy, boats and ships, chemical industry at home and abroad.The structure of axial piston motor is that plunger axis is with Boring mill line parallel or close to parallel, and the structure that cylinder body axis and drive shaft axis overlap, this axial piston motor enters in cylinder body inner prop consent at pressure oil by thrust plate, pressure oil acts on piston shoes and swash plate mating face by plunger, under the effect of the inclination angle of swash plate or motor casing, Force decomposition is the component perpendicular to cylinder body axis, this power acts on cylinder body by plunger, drive cylinder body rotates, and is connected between cylinder body and transmission shaft by involute splines.And change plunger hole chamber internal volume in cylinder body carry out inhaling or pressure except liquid, cylinder body drives transmission shaft to rotate and output mechanical energy.Cylinder body is the core part in axial piston motor, and namely cylinder body requires high intensity, requires again high wear resistance, simultaneously cylinder body machining accuracy by the height of the usability and mechanical efficiency that directly determine whole motor.
As shown in Figure 1-2, cylinder body 2 is provided with the mounting hole for assembling transmission shaft 8 and plunger piston slippery boots assembly 3 to traditional axial piston motor cylinder body; During assembling as shown in Figure 5, the side of cylinder body 2 is provided with thrust plate 1, is provided with plunger piston slippery boots assembly 3, transmission shaft 8 in the mounting hole of cylinder body 2, and the piston shoes part of plunger piston slippery boots assembly 3 is exposed from cylinder body 2, matching with return plate 5 in this exposed portion, is provided with swash plate 4 outside return plate 5; Transmission shaft 8 exposes from cylinder body 2, and this bared end cover has ball pivot 6 (as shown in Figure 3-4), and ball pivot 6 matches with return plate 5, swash plate 4; Cylinder body 2, ball pivot 6, transmission shaft 8 are coaxially arranged.High pressure oil is entered in cylinder body 2 plunger hole by thrust plate 1, acts on plunger piston slippery boots assembly 3, and plunger is installed in cylinder body 2 hole, and piston shoes are arranged in return plate 5 hole, and return plate 5 supports by the ball pivot 6 be arranged on cylinder body 2 end face.Because swash plate 4 is arranged in the angled motor casing of band, after its assembling, there is several angle.High pressure oil resolves into the component F1 perpendicular with the swash plate 4 and component F2 (as shown in Figure 6) with axial direction direction at a right angle by the directed force F that plunger is delivered on piston shoes, directed force F 2 is delivered on cylinder body 2 by plunger piston slippery boots assembly 3, cylinder body is made to produce running torque and drive output shaft to rotate, thus realize hydraulic energy transfer being mechanical energy, reach the function of transfer of torque.Return plate 5 is driven to rotate in plunger piston slippery boots assembly 3 rotary course, therefore the hole on return plate 5 is designed to sphere or conical surface shape, ball pivot 6 for supporting return plate 5 is designed to spheric structure with its junction, thus realize return plate 5 can multi-directional rotation under the drive of plunger piston slippery boots assembly 3.In order to prevent the accumulation machining error of cylinder body 2, ball pivot 6 and return plate 5 excessive, by cylinder body 2 and processed springs mounting hole on the surface of contact of ball pivot 6, ball pivot 6 is supported by the spring 7 be arranged in cylinder body 2, under the effect of spring 7, eliminates the axial dimensional errors of accumulation.Owing to being subject to integrally-built restriction in actual use, ball pivot 6 wall thickness is thinner, difficulty of processing is larger, the simultaneously reasons such as after heat treatment deformation comparison height that is serious and cylinder body 2 inner spring 7 is different, cause the spin axis of ball pivot 6 and the spin axis disalignment of cylinder body 2, return plate 5 is caused to be out of shape after using a period of time, thus make the phenomenon of the loose boots of the on-stream appearance of plunger piston slippery boots assembly 3 or de-boots, the phenomenon that return plate 5 is pulled off is there will be when serious, and the external mass problem feedback causing whole piston motor to work.
Summary of the invention
To be solved in the utility model is the coaxality of ball pivot and cylinders rotation shaft line, and ball pivot limits by overall structure, and wall thickness design is thinner and the problem that causes difficulty of processing large.
In order to solve the problem, the utility model provides a kind of axial piston motor housing structure, cylinder body is provided with the mounting hole for assembling transmission shaft and plunger piston slippery boots assembly, it is characterized in that, cylinder body is provided with spherical hinge structure for the outside of the mounting hole assembling transmission shaft, the outside of spherical hinge structure is sphere, and this sphere matches with return plate, swash plate; The mounting hole for assembling transmission shaft is provided with in spherical hinge structure.
Preferably, the length of part that the sphere of described spherical hinge structure exposes from return plate is 1 ~ 1.5mm.
Cylinder body and ball pivot are designed to one by the utility model, make cylinder body possess the effect of traditional cylinder body and ball pivot simultaneously.The size of sphere size depends on the position contacted with return plate, return plate and cylinder body sphere-contact, ensures that return plate can realize multi-faceted rotary motion.According to practical set situation, control the distance of cylinder body end face to sphere centre, reduce the cumulative error of axial dimension.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model provides the design of a kind of new housing structure, mainly increases by a spheric structure at the end face of cylinder body, as seen from Figure 5, does not exist because of structural limitations in course of working, and ball pivot wall is thin and cause the situation of distortion; Because ball pivot and tank design are integrated, decrease the processing of cylinder body inner spring mounting hole, save the cost of charp tool, also save cost of material and the separable processing cost of ball pivot simultaneously.
2, the utility model structure is simple, saves the spring supporting ball pivot, improve efficiency of assembling, decrease the purchase cost of spring in assembling.The cylinder body of this new structure adds axial dimension tolerance more easy to control in man-hour, decrease the cumulative error of assembling, sphere adds man-hour by cylinder body end face and excircle orientation, more easily ensure the coaxality of sphere and cylinders rotation shaft line, stop the deformation of return plate in using, improve the quality of product, decrease the feedback of external mass problem.
Accompanying drawing explanation
Fig. 1 is the plan view of conventional cylinder body structure;
Fig. 2 is the sectional view of Fig. 1 side view;
Fig. 3 is the plan view of traditional spherical hinge structure;
Fig. 4 is the sectional view of Fig. 3 side view;
Fig. 5 is the structural representation after traditional cylinder body and ball pivot assemble;
Fig. 6 is the force analysis figure under pressure oil effect;
The plan view of the axial piston motor housing structure that Fig. 7 provides for the utility model;
Fig. 8 is the perspective view of Fig. 7 side view;
Structural representation after the housing structure assembling that Fig. 9 provides for the utility model;
Figure 10 is the schematic diagram of sphere and return plate mating part on cylinder body.
Embodiment
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment
As Figure 7-8, for a kind of axial piston motor housing structure that the utility model provides, cylinder body 2 is provided with the mounting hole for assembling transmission shaft 8 and plunger piston slippery boots assembly 3, cylinder body 2 is provided with spherical hinge structure 10 for the outside of the mounting hole assembling transmission shaft 8, the outside of spherical hinge structure 10 is sphere, and this sphere matches with return plate 5, swash plate 4; The mounting hole for assembling transmission shaft 9 is provided with in spherical hinge structure 10.The thickness d of the part that the sphere of spherical hinge structure 10 exposes from return plate 5 is 1 ~ 1.5mm.
The material that this cylinder body 2 is selected is nodular iron casting, and actual processing route is: casting-rough turn (both ends of the surface)-normalizing-finish turning-garland key-Hole honing-nitriding treatment, rough turn adding, can use engine lathe man-hour, the monolateral allowance for finish leaving 1mm, normalized treatment is carried out after roughing, the cutting stress produced when eliminating roughing, carry out fine finishing again, turning center is used to process during fine finishing. first process mounting hole part on cylinder body 2, ensure that center and the cylindrical of the plunger mounting hole composition above cylinder body 2 are coaxial, by the establishment of program, turning center countershaft is used automatically to clamp processing excircles, the end face that simultaneously keeps left is located, now process Inner Dimension and all to be processed of the outer surface thereof of spheric structure 10, owing to leaning on turning center major-minor axle automated exchanged cutter, eliminate the error of artificial clamping, the end face now processed is more stable to the size of sphere, the axis almost coaxial of sphere axis and plunger piston slippery boots assembly 3 mounting hole centre distance composition, error is not more than 0.02mm.Because turning center machining accuracy is higher, sphere size is more easy to control, eliminates the problem causing size error large because of clamping deformation.
After the housing structure assembling adopting the utility model to provide as shown in Figure 9, this Standard is simple, and part difficulty of processing is not high yet, saves the assembling of spring 7 in assembling, saves fabricated material cost, improves efficiency of assembling.
Specific operation are verified by testing and putting into practice:
In order to verify this Novel cylinder body reliability of structure, assembly after the utility model and traditional cylinder body being assembled is respectively through carrying out the abrasion condition disassembling, detect two cover assemblies after strenuous test in 200 hours, in traditional cylinder assembly assembling there is eccentric wear phenomenon in thrust plate 1 entirety, hole location return plate 4 being installed piston shoes becomes 0.32mm from original 0.05mm, and thrust plate 1 weares and teares 0.02mm in the housing structure that the utility model provides, overall wear thickness is even, hole location return plate 5 being installed piston shoes is 0.08mm, substantially unchanged.Namely each part service condition is all normal.
Claims (2)
1. an axial piston motor housing structure, cylinder body (2) is provided with the mounting hole for assembling transmission shaft (8) and plunger piston slippery boots assembly (3), it is characterized in that, cylinder body (2) is provided with spherical hinge structure (10) for the outside of the mounting hole assembling transmission shaft (8), the outside of spherical hinge structure (10) is sphere, and this sphere matches with return plate (5), swash plate (4); The mounting hole for assembling transmission shaft (9) is provided with in spherical hinge structure (10).
2. axial piston motor housing structure as claimed in claim 1, is characterized in that, the thickness (d) of the part that the sphere of described spherical hinge structure (10) exposes from return plate (5) is 1 ~ 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444440.1U CN204061043U (en) | 2014-08-07 | 2014-08-07 | A kind of axial piston motor housing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444440.1U CN204061043U (en) | 2014-08-07 | 2014-08-07 | A kind of axial piston motor housing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061043U true CN204061043U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420444440.1U Expired - Fee Related CN204061043U (en) | 2014-08-07 | 2014-08-07 | A kind of axial piston motor housing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061043U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400025A (en) * | 2021-06-26 | 2021-09-17 | 惠尔信机械（泰兴）有限公司 | 3.5 megawatt wind generating set gear box primary planet carrier turning process |
| CN115681064A (en) * | 2022-11-16 | 2023-02-03 | 无锡威孚精密机械制造有限责任公司 | Rotary assembly of swash plate type axial plunger pump and motor |
| CN116950832A (en) * | 2023-07-19 | 2023-10-27 | 青岛力克川液压机械有限公司 | Integrated cylinder body, cylinder assembly and cylinder body processing method |
-
2014
- 2014-08-07 CN CN201420444440.1U patent/CN204061043U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400025A (en) * | 2021-06-26 | 2021-09-17 | 惠尔信机械（泰兴）有限公司 | 3.5 megawatt wind generating set gear box primary planet carrier turning process |
| CN113400025B (en) * | 2021-06-26 | 2023-09-15 | 惠尔信机械（泰兴）有限公司 | Machining process for first-stage planet carrier of gear box of 3.5 megawatt wind generating set |
| CN115681064A (en) * | 2022-11-16 | 2023-02-03 | 无锡威孚精密机械制造有限责任公司 | Rotary assembly of swash plate type axial plunger pump and motor |
| CN116950832A (en) * | 2023-07-19 | 2023-10-27 | 青岛力克川液压机械有限公司 | Integrated cylinder body, cylinder assembly and cylinder body processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |