CN204327396U - Compact axial flow distribution cycloid hydraulic motor with short shell - Google Patents
Compact axial flow distribution cycloid hydraulic motor with short shell Download PDFInfo
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- CN204327396U CN204327396U CN201220555442.9U CN201220555442U CN204327396U CN 204327396 U CN204327396 U CN 204327396U CN 201220555442 U CN201220555442 U CN 201220555442U CN 204327396 U CN204327396 U CN 204327396U
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- body shell
- shaped
- hydraulic motor
- output shaft
- flow distribution
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Abstract
The utility model relates to a kind of Compact axial flow distribution cycloid hydraulic motor with short shell, belong to hydraulic transmission technology field, the overall axial dimension of motor is short and small compact, and one end is the body shell being shaped with liquid entering hole and refluxing opening, and the other end is the cycloidal pin wheel set formed primarily of stators and rotators; The output shaft that outer end extends out is equipped with in described body shell one end, and the couple axle that two ends are engaged with described output shaft the inner and rotor internal spline is respectively equipped with at middle part; Described body shell is shaped with unidirectional valve opening, and described unidirectional valve opening is made up of two cylindrical holes and connected conical surface thereof, and described conical surface abuts against valve ball, and described valve ball another side carries dividing plate.
Description
Technical field
The utility model relates to and a kind ofly realizes by cycloidal pin wheels engagement pair the cycloid hydraulic motor that hydraulic energy changes to mechanical energy, and especially a kind of Compact axial flow distribution cycloid hydraulic motor with short shell, belongs to hydraulic transmission technology field.
Background technique
Cycloid hydraulic motor is conventional fluid pressure drive device, is also to realize the conventional hydraulic pressure execution device that hydraulic energy converts function to.Cycloid hydraulic motor has the advantages such as volume is little, specific power density is large, efficiency is high, speed range is wide, is thus widely applied.
The basic structure of such device is that body shell or bonnet are shaped with liquid entering hole and refluxing opening, cycloidal pinion engaged pair and flow-distribution mechanism are equipped with in one end, before or after flow-distribution mechanism can be placed on cycloidal pinion engaged pair, general is axle Flat valve in front (body shell side), be plane flow in rear (bonnet side), the other end is equipped with output shaft.The rotor of cycloidal pinion engaged pair is engaged by the external gear of internal spline with couple axle one end, and the other end of couple axle is connected with the transmission of output shaft internal spline.During work, flow-distribution mechanism makes liquid entering hole engage chamber with the expansion of cycloidal pin wheel set to be communicated with, and the contraction chamber of cycloidal pin wheel set is communicated with refluxing opening.As a result, after pressured fluid enters body shell or bonnet from liquid entering hole, enter the expansion engagement chamber that cycloidal pinion engaged pair is formed, its volume is constantly expanded, the contraction that cycloidal pinion engaged pair is formed simultaneously is engaged liquid in chamber and is then refluxed from refluxing opening; In the process, the rotor of cycloidal pinion engaged pair is expanded engagement chamber and shrinks the pressure difference engaging chamber and orders about rotation, and this is rotated through couple axle and be delivered to output shaft output, thus realizes the conversion of hydraulic energy to mechanical energy.Meanwhile, flow-distribution mechanism (axle valve) is also by couple axle driven rotary, and the continuous switching connected state gone round and begun again, makes transfer process be continued.Like this, motor just can continuous print output torque.
According to the applicant understood, the cycloid hydraulic motor application development of the axle flow that existing structure is compact is rapidly (as series product such as BM1, BMP, BMR that claimant now produces, external typical products is as the OMP series product of DANFOSS company, the H series product of EATON company), but existing product still can not meet the shorter requirement of the axial dimension of increasing gearbox casing needs, superior performance, the market demand that manufacture cost reduces.
Summary of the invention
The purpose of this utility model is: for above prior art Problems existing, the deficiency of the axle flow motor of especially supporting gearbox designs, a kind of Compact axial flow distribution cycloid hydraulic motor with short shell is proposed, and reduce the axial dimension of motor, realize original structure motor fundamental function, make the processing of oil hydraulic motor, assembling manufacturability all good, improve cost performance.
In order to achieve the above object, claimant is by the structural analysis to discharge capacity 25-400 milliliter/turn small-sized discharge capacity cycloid hydraulic motor less than normal, especially there is the research of axle Flat valve structure cycloid tooth wheel set oil hydraulic motor integral structure layout, find out the Improving ways that its axial dimension is larger, under the prerequisite keeping existing overall motor boundary dimension constant, proposing following the technical solution of the utility model is: a kind of Compact axial flow distribution cycloid hydraulic motor with short shell, one end is the body shell being shaped with liquid entering hole and refluxing opening, the other end is the cycloidal pin wheel set formed primarily of stators and rotators, the output shaft that outer end extends out is equipped with in described body shell one end, and the couple axle that two ends are engaged with described output shaft the inner and rotor internal spline is respectively equipped with at middle part, its improvements are: described body shell is shaped with unidirectional valve opening, described unidirectional valve opening is made up of two cylindrical holes and connected conical surface thereof, described conical surface abuts against valve ball, described valve ball another side carries dividing plate, and described small cylindrical opening one end and the outer draining technique through hole be arranged on body shell are linked up.
Above technological scheme is further improved: described outer draining technique through hole is shaped with the passage logical with the oil phase that leaks of motor inner chamber, and described passage is connected with dividing plate, described dividing plate is shaped with the passage be connected with above-mentioned passage.
Above technological scheme is further improved: described output shaft is shaped with one annular groove, described output shaft is shaped with simultaneously 12 road circular arc flow grooves, half-and-half be staggered two positions of the uniform output shaft that is placed in, described annular groove and a semicircular arc flow groove lead to, and the described output shaft diameter of axle and the main aperture of body shell form flow-distributing valve.
The main aperture of described body shell is shaped with one circular groove, and main aperture is shaped with seven radial holes simultaneously and links up with seven cavitys turning stator engagement pair, and described radial hole is constantly linked up with closed at output shaft motion Zhong Yu 12 road circular arc flow groove.
Compared with the gerotor motor of prior art; after above-mentioned modified node method of the present utility model, the axial dimension of motor is short, meets the needs that the size of gearbox is short, has the internal one-way valve structure of protection rotary shaft sealing simultaneously; and processing, assembling all very convenient, can expand motor application area this.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Skeleton shaft seal 1 in figure, screw 2, protecgulum 3, O type circle 4, back-up ring 5, plane bearing 6, body shell 7, valve ball 8, O type circle 9, dividing plate 10, bonnet 11, bolt 12, plug screw 13, packing ring 14, seal ring 15, stator 16, pin tooth 17, rotor 18, couple axle 19, output shaft 20; Passage 001, passage 002, passage 003, passage 008.
Fig. 2 is the structure for amplifying schematic diagram I of one-way valve in Fig. 1 embodiment.
Passage 001 in figure, passage 002, body shell 7, dividing plate 10.
Fig. 3 is the end-face structure schematic diagram of Fig. 1 embodiment central diaphragm 10.
In figure, the outer draining of inner chamber leads to two one-way valve return opening passages 004.
Fig. 4 is the structural representation of the right elevation of body shell 7 and bonnet 11 in Fig. 1 embodiment.
Passage 005 in figure.
Fig. 5 is the structural representation of embodiment two.
Passage 006 in figure, screw 007.
Fig. 6 is the sectional drawing of the E-E of Fig. 3.
Embodiment
embodiment one
The present embodiment Compact axial flow distribution cycloid hydraulic motor with short shell structure as shown in Figure 1, overall axial dimension is shorter, especially the axial dimension hinge structure motor of body shell reduces largely, motor configuration is shorter and compact, mainly comprise output shaft 20, protecgulum 3, body shell 7, couple axle 19, dividing plate 10, turn stator pinwheel pair 16, 17 and 18, bonnet 11 etc., wherein cycloidal pinion engaged pair is by rotor, stator and pin tooth form or are made up of rotor and unitary stator, stator 16 is fixed on body shell 7 with dividing plate 10 and bonnet 11 by bolt 12 jointly, thus formed seven only in consubstantiality shell 7 flow duct, the cavity that the high low pressure oil through of dividing plate 10 communicates one by one.
Compact axial flow distribution cycloid hydraulic motor with short shell, one end is the body shell 7 being shaped with liquid entering hole and refluxing opening, and the other end is the cycloidal pin wheel set formed primarily of stator 16 and rotor 18; The output shaft 20 that outer end extends out is equipped with in described body shell 7 one end, and the couple axle 19 that two ends are engaged with described output shaft 20 the inner and rotor 18 internal spline is respectively equipped with at middle part; The present embodiment motor has two one-way valve structures, as shown in Figure 2, its improvements are: described body shell 7 is shaped with unidirectional valve opening, described unidirectional valve opening is made up of two cylindrical holes and connected conical surface thereof, described conical surface abuts against valve ball 8, described valve ball 8 another side carries dividing plate 10, and described small cylindrical opening one end is linked up with the outer draining technique through hole being arranged at body shell 7 upper channel 008, and described small cylindrical opening is connected by passage 002 and passage 008.Described great circle post holes one end is communicated by the liquid entering hole of passage 001 and motor or liquid return hole, and the outer draining of passage 002 enters the passage of liquid return hole by one-way valve, the outer draining of passage 003 inner chamber is by the passage of the outer draining technique through hole inlet passage 002 of passage 008.
Above technological scheme is further improved: described outer draining technique through-hole passage 008 is shaped with the passage logical with the oil phase that leaks of motor inner chamber, and described passage 008 is connected with dividing plate 10.Dividing plate 10 as shown in Figure 3, described dividing plate 10 is shaped with the outer drain path 004 be connected with above-mentioned passage, the outer draining of motor inner chamber leads to the return opening passage 004 of two one-way valves, and passage 004 is linked up with passage 008 phase by passage 002, and passage 004 sectional shape as shown in Figure 6.
Above technological scheme is further improved: described output shaft 20 is shaped with one annular groove, described output shaft 20 is shaped with simultaneously 12 road circular arc flow grooves, half-and-half be staggered two positions of the uniform output shaft that is placed in, described annular groove and a semicircular arc flow groove lead to, the described output shaft diameter of axle and the main aperture of body shell form flow-distributing valve, and described annular groove communicates with liquid entering hole or liquid return hole.
The main aperture of described body shell 7 is shaped with one circular groove, main aperture is shaped with seven radial holes simultaneously and links up with seven cavitys turning stator engagement pair, described radial hole constantly to be linked up and closed at the output shaft 20 Zhong Yu 12 road circular arc flow groove that moves, form the flow relation of motor, described annular groove communicates with liquid entering hole or liquid return hole.
Described body shell 7 seals by rotating skeleton shaft seal 1 with the axial seal of output shaft 20, and affiliated skeleton shaft seal 1 is arranged in protecgulum 3, and described protecgulum 3 carries out radial location by back-up ring 5 pairs of body shells 7, and is fixedly connected by screw 2 and body shell 7.
The output terminal of the output shaft 20 of described body shell 7 is arranged in gearbox class driving mechanism, seam is installed an O type seal groove is set, attachment face is provided with the logical hydraulic fluid port of braking, as shown in Figure 4, described logical hydraulic fluid port is oblique to be braked hydraulic fluid port passage 005 with body shell 7 the other end and communicates, passage 005 is the passage of the braking fluid that the speed change gear driven is reserved, passage 005 liang of side position processing liquid entering hole or liquid return hole, the radial direction of body shell 7 has diameter to be greater than the round boss of stator diameter, boss has the mounting hole be connected with speed change gear.
embodiment two
The present embodiment two is that the hydraulic fluid port distribution on embodiment one basis is further improved, as shown in Figure 5, the another side of the attachment face of described body shell 7 has the space of installing circular arc equilibrium valve, be shaped with liquid entering hole and liquid return hole and brake hydraulic fluid port passage 006, and the installation screw 007 of circular arc balance valve body, described circular arc balance valve body is arranged in circular radial cambered surface, and described circular radial cambered surface is shaped with the technique through hole that liquid entering hole and liquid return hole respectively communicate.
Facts have proved, the Coefficient of discharge of the Compact axial flow distribution cycloid hydraulic motor with short shell of the present embodiment is less, and axial dimension is short and small, parts machining process moderate accuracy, the good manufacturability of assembling, reliability is high, and compact structure, thus the cost performance and the applying working condition that improve product.Solve the conditional demand of speed change gear axial dimension tool, solve the difficult problem (as shown in CN200720045223.5 file) that the axial mounting point distance of existing axle distributing cycloid hydraulic motor one-way valve is longer.
In addition to the implementation, the utility model can also have other mode of executions.Such as, the stator turning stator pair is adopted to be monolithic construction etc.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (9)
1. a Compact axial flow distribution cycloid hydraulic motor with short shell, one end is the body shell being shaped with liquid entering hole and refluxing opening, and the other end is the cycloidal pin wheel set formed primarily of stators and rotators; The output shaft that outer end extends out is equipped with in described body shell one end, and the couple axle that two ends are engaged with described output shaft the inner and rotor internal spline is respectively equipped with at middle part; It is characterized in that: described body shell is shaped with unidirectional valve opening, described unidirectional valve opening is made up of two cylindrical holes and connected conical surface thereof, and described conical surface abuts against valve ball, and described valve ball another side carries dividing plate.
2. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 1, it is characterized in that: described small cylindrical opening one end and the outer draining technique through hole be arranged on body shell are linked up, described outer draining technique through hole is shaped with the passage logical with the oil phase that leaks of motor inner chamber, described passage is connected with dividing plate, described dividing plate is shaped with the passage be connected with above-mentioned passage.
3. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 1 and 2, it is characterized in that: described output shaft is shaped with one annular groove, described output shaft is shaped with simultaneously 12 road circular arc flow grooves, half-and-half be staggered two positions of the uniform output shaft that is placed in, and described annular groove and a semicircular arc flow groove lead to.
4. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 3, is characterized in that: the main aperture of described body shell is shaped with one circular groove, and described main aperture is shaped with seven radial holes and links up with seven cavitys turning stator engagement pair.
5. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 4, the described output shaft diameter of axle and the main aperture of body shell form flow-distributing valve, described radial hole is constantly linked up with closed at output shaft motion Zhong Yu 12 road circular arc flow groove, and described annular groove communicates with liquid entering hole or liquid return hole.
6. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 5, is characterized in that: described protecgulum carries out radial location by back-up ring to body shell, is fixedly connected by screw.
7. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 6, it is characterized in that: described body shell is installed seam and arranged an O type seal groove, attachment face is provided with the logical hydraulic fluid port of braking, and the radial direction of described body shell arranges mounting hole round boss.
8. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 7, is characterized in that: the another side of the attachment face of described body shell has the space of installing circular arc equilibrium valve, is shaped with liquid entering hole and liquid return hole and brakes hydraulic fluid port passage.
9. Compact axial flow distribution cycloid hydraulic motor with short shell according to claim 8, is characterized in that: described circular arc balance valve body is arranged in circular radial cambered surface, and described circular radial cambered surface is shaped with the technique through hole that liquid entering hole and liquid return hole respectively communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220555442.9U CN204327396U (en) | 2012-10-28 | 2012-10-28 | Compact axial flow distribution cycloid hydraulic motor with short shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220555442.9U CN204327396U (en) | 2012-10-28 | 2012-10-28 | Compact axial flow distribution cycloid hydraulic motor with short shell |
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| Publication Number | Publication Date |
|---|---|
| CN204327396U true CN204327396U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220555442.9U Expired - Fee Related CN204327396U (en) | 2012-10-28 | 2012-10-28 | Compact axial flow distribution cycloid hydraulic motor with short shell |
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| CN (1) | CN204327396U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523264A (en) * | 2016-12-13 | 2017-03-22 | 镇江大力液压马达股份有限公司 | High-speed flow allocation cycloid hydraulic motor |
| CN106593759A (en) * | 2017-01-06 | 2017-04-26 | 镇江大力液压马达股份有限公司 | Body shell positioning axial flow cycloid hydraulic motor with front cover |
| CN106704089A (en) * | 2016-12-23 | 2017-05-24 | 镇江大力液压马达股份有限公司 | Flow distribution cycloid hydraulic motor for axial flow valve |
| CN107061139A (en) * | 2016-12-13 | 2017-08-18 | 镇江大力液压马达股份有限公司 | A kind of cycloid hydraulic motor |
-
2012
- 2012-10-28 CN CN201220555442.9U patent/CN204327396U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523264A (en) * | 2016-12-13 | 2017-03-22 | 镇江大力液压马达股份有限公司 | High-speed flow allocation cycloid hydraulic motor |
| CN107061139A (en) * | 2016-12-13 | 2017-08-18 | 镇江大力液压马达股份有限公司 | A kind of cycloid hydraulic motor |
| CN106704089A (en) * | 2016-12-23 | 2017-05-24 | 镇江大力液压马达股份有限公司 | Flow distribution cycloid hydraulic motor for axial flow valve |
| CN106593759A (en) * | 2017-01-06 | 2017-04-26 | 镇江大力液压马达股份有限公司 | Body shell positioning axial flow cycloid hydraulic motor with front cover |
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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: 20150513 Termination date: 20201028 |