CN201739075U - Built-in integrated valve type brake cycloid hydraulic motor - Google Patents
Built-in integrated valve type brake cycloid hydraulic motor Download PDFInfo
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- CN201739075U CN201739075U CN2010202958718U CN201020295871U CN201739075U CN 201739075 U CN201739075 U CN 201739075U CN 2010202958718 U CN2010202958718 U CN 2010202958718U CN 201020295871 U CN201020295871 U CN 201020295871U CN 201739075 U CN201739075 U CN 201739075U
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- brake
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- eccentric boss
- hydraulic motor
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Abstract
The utility model relates to a built-in integrated valve type brake cycloid hydraulic motor, which belongs to the technical field of hydraulic transmission. The built-in integrated valve type brake cycloid hydraulic motor has a structure that a casing is provided on one end and a brake apparatus is arranged on the other end; one end of a linkage shaft inside the casing extends out from an eccentric boss; the brake seat of the brake apparatus, having a step hole coaxial with an output shaft is fixedly connected with a stator; when a sealing chamber is filled with pressure oil a piston is in the first place and the eccentric boss come off brake holes; and when the sealing chamber releases pressure oil, the piston is in the second position and the eccentric boss is inserted into the brake holes. In this way, the pressure oil of the sealing chamber can be released by controlling the oil way on the brake seat, and the eccentric boss is inserted into the brake holes by the translocation of the piston under action of a spring. The revolution of the linkage shaft is restrained when the eccentricity of the eccentric boss is blocked, so that instant brake is possible regardless of torque. Compared with the prior art, t he utility model is simple and compact in structure, and can effectively lower the production and assembly cost.
Description
Technical field
The utility model relates to a kind of hydraulic pressure can be to the cycloid hydraulic motor of mechanical energy conversion, and especially a kind of built-in integrated valve type braking cycloid hydraulic motor with function of braking belongs to hydraulic transmission technology field.
Background technique
Cycloid hydraulic motor is the conventional apparatus that realizes liquid-function conversion.Its basic structure can be the Chinese patent literature of ZL200820035921.1 referring to the patent No., be shaped on liquid entering hole and refluxing opening on its housing or the bonnet, one end is equipped with cycloidal-pin wheel pair and flow-distribution mechanism, the other end is equipped with output shaft, the rotor of cycloidal-pin wheel pair is by the external gear engagement of internal spline and couple axle one end, and the other end of couple axle is connected with the output shaft transmission.During work, flow-distribution mechanism makes liquid entering hole be communicated with the expansion engagement chamber of cycloidal-pin wheel pair, and the contraction chamber of cycloidal-pin wheel pair is communicated with refluxing opening.As a result, after pressured fluid enters housing or bonnet from liquid entering hole, enter the secondary expansion engagement chamber that forms of cycloidal-pin wheel again, its volume is constantly enlarged, the liquid in the secondary contraction engagement chamber that forms of cycloidal-pin wheel then refluxes from refluxing opening simultaneously.In this process, the rotor of cycloidal-pin wheel pair is expanded engagement chamber and the pressure difference rotary driving of shrinking the engagement chamber, produces moment of torsion, and this driving torque is delivered to output shaft output by couple axle, thereby realizes that hydraulic pressure can be to the conversion of mechanical energy.Meanwhile, flow-distribution mechanism is also by the synchronous driven rotary of couple axle, and the continuous switching connected state that goes round and begins again is continued transfer process.Like this, oil hydraulic motor output torque continuously just.
In order to be fit to the development and change of application, cycloid hydraulic motor needs braking in time, and U.S. Pat 5495927, US6062835 have provided the design proposal that oil hydraulic motor and braking device are organically combined respectively for this reason.Yet above-mentioned braking device all needs not only be difficult to satisfy the usage requirement of moment braking by friction plate, and its manufacturing, packaging technology complexity, and often makes that oil hydraulic motor assembly volume is bigger.
The model utility content
The technical problems to be solved in the utility model is: can realize the instantaneous braking of high pulling torque at the above-mentioned existing shortcoming proposition that in time exists is a kind of, and built-in integrated valve type braking cycloid hydraulic motor simple and compact for structure.
On the above-mentioned cognition basis, the claimant has proposed the technological scheme of the utility model built-in integrated valve type braking cycloid hydraulic motor, one end of this motor is the body shell with liquid entering hole and refluxing opening, the cycloidal-pin wheel pair of middle part for constituting by stator and rotor, and the other end is a braking device; Extended output shaft is equipped with in described body shell outer end, and the cylindrical of described output shaft is with the flow valve pocket, inner end engagement by internal spline and couple axle; The other end of described couple axle and the engagement of the internal spline of rotor; It is characterized in that: the other end of described couple axle extends eccentric boss, and described braking device contains Brake Block, and described Brake Block is fixedlyed connected with described stator, wherein is shaped on the step hole coaxial with output shaft; The step-like piston that matches with it is housed in the described step hole; The path section adjacent stator of described piston, the middle part has the brake hole that described eccentric boss can enter; The big footpath section of described piston is resisted against on the elastic component away from an end of stator, and the other end and described step hole form enclosed cavity; Has the oil circuit that is communicated with enclosed cavity on the described Brake Block; When enclosed cavity was full of pressure oil, described piston was in primary importance, and described eccentric boss is deviate from brake hole; When enclosed cavity release pressure oil, described piston is in the second place, and described eccentric boss inserts brake hole.
The utility model further improves, and the center hole of described piston is step-like, is made of through the round platform hole of section with being positioned at greatly the cylindrical hole that is positioned at the path section; The circular cone stage clip that shape matches with it is housed in the described round platform hole, and the two ends of described circular cone stage clip are resisted against respectively on the step end face and Brake Block bonnet of described center hole.
The utility model further improves, and in the center hole of described piston position limit pin is housed, and the two ends of described position limit pin contact with the Brake Block bonnet with the end face of described eccentric boss respectively.Can play position-limiting action like this, avoid the axial float of couple axle excessive.
Like this, need only the oil circuit on the control brake seat, can discharge the pressure oil of enclosed cavity, under the effect of spring, make the piston displacement, eccentric boss inserts brake hole.Under the off-centre retardance of eccentric boss, the revolution of couple axle is restrained, even moment of torsion is big again, also can instantaneously brake.Compared with prior art, of the present utility model simple in structure, compact, therefore can significantly reduce manufacturing, assembly cost, keep having improved the application power of cycloid hydraulic motor under specific operation under the constant substantially situation of original Placement and sectional dimension.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is an embodiment's of the utility model a structural representation.
Fig. 2 is the plan view of Fig. 1.
But each figure of Fig. 3 A to G is the sectional drawing of Fig. 1 embodiment rotor application position.
Fig. 4 is Fig. 1 embodiment's internal oil passages control principle figure.
Among the figure: 1 body shell, 6 output shafts, 8 protecgulums, 10 bearings, 11 springs, 12 steel balls, 13 locating studs, 16 shuttle valve plugs, 18 pin teeth, 19 rotors, 20 is back every dish, 21 Brake Blocks, 24 bonnets, 26 plug screws that leak, 30 circular cone stage clips, 31 pistons, 32 position limit pins, 33 high pressure plugs, 36 stators, 37 is preceding every dish, 38 sliding bearings, 39 one-way valves, 43 couple axles, 44 flow covers, 45 eccentric boss.
Embodiment
Embodiment one
The basic structure of the in-built baking cycloid hydraulic motor of present embodiment as shown in Figure 1, the left end of whole motor is the body shell 1 with liquid entering hole and refluxing opening, the middle part cycloidal-pin wheel pair 9 (referring to Fig. 3) that the stator 36 that contains pin tooth 18 and rotor 19 constitute of serving as reasons, right-hand member is a braking device.It is forward and backward every dish 38 and 20 that the two ends, middle part are respectively.The output shaft 6 that extends protecgulum 8 is equipped with in body shell 1 outer end, and the cylindrical of this output shaft is with flow valve pocket 44, inner end engagement by internal spline and couple axle 43.The internal spline engagement of the other end of couple axle 43 and rotor 19.Thereby form the basic structure of oil hydraulic motor.
Its improvements are: the other end of couple axle 43 extends the eccentric boss 45 that departs from the rotor gyration center.Braking device contains Brake Block 21, and this Brake Block and stator 36 are fixedlyed connected every dish 20 by the back, wherein is shaped on the step hole coaxial with output shaft 6.The step-like piston 31 that matches with it is housed in this step hole.The path section adjacent stator 36 of piston 31, the middle part has the brake hole that eccentric boss can enter.The center hole of piston 31 is step-like, constitute through the round platform hole of section with being positioned at greatly by the cylindrical hole that is positioned at the path section, the circular cone stage clip 30 that shape matches with it is housed in the round platform hole, and the two ends of circular cone stage clip are resisted against respectively on the step end face and Brake Block bonnet 24 of center hole.The other end of piston 31 and step hole form enclosed cavity, have the oil circuit that is communicated with enclosed cavity on the Brake Block 21, thereby piston 31 can be moved in making seat 21 under the effect of pressure liquid or spring.Particularly, when the control enclosed cavity was full of pressure oil, piston 31 (moving to) was in primary importance, and eccentric boss 45 is because of piston 31 brake hole that is shifted to the right, thereby made that couple axle can be unfettered, with the transmission of movement of rotor to output shaft; When control enclosed cavity release pressure oil, piston 31 (moving to) is in the second place, eccentric protruding 45 are inserted in the brake hole because of piston 31 is shifted to the left, because the gyration center decentraction of eccentric boss and rotor, thereby making the rotation of couple axle suffer restraints, the motion of rotor is braked at once.
By shown in Figure 3, the approximate ellipsoidal of the cross section of eccentric boss 45 for surrounding by two sections circular arcs, wherein the internal diameter of the radius of one section circular arc and brake hole matches.
Axial float for fear of couple axle is excessive, and the center hole of piston 31 is fitted with position limit pin 32, and the two ends of this position limit pin contact with Brake Block bonnet 24 with the end face of eccentric boss respectively.
During work, the extended eccentric boss of couple axle with the synchronous rotation of output shaft in revolve round the sun synchronously with rotor.At each angle position corresponding, can enter the brake hole interior (referring to each position of Fig. 3) of brake piston with the rotor number of teeth.Owing to have rotation and revolution simultaneously during the cycloid secondary motion, and after eccentric boss entered brake hole, revolution was restricted, thereby has also retrained rotation, and the result can't be rotated further the cycloid pair.
As shown in Figure 2, for the motor overall structure that makes present embodiment is more compact, housing 1 into and out of having increased a shuttle valve between the hydraulic fluid port, its oil channel structures is referring to Fig. 4.Its concrete structure and working principle can be 200920207770.8 Chinese utility model patent referring to application number, the major function of present embodiment shuttle valve is: no matter which mouth of two hydraulic fluid ports of A, B enters high pressure oil, all there is one tunnel control oil channel to enter break, also prevent simultaneously two hydraulic fluid port conductings of A, B (shuttle of the similar loom of steel ball of shuttle valve core is so claim shuttle valve).
When present embodiment is braked in the inner realization of oil hydraulic motor, not that output shaft is directly braked control, but realize by the braking of couple axle is controlled.And eccentric braking has been adopted in the friction of the off the beaten track radially cylindrical of brake structure, so the profile size of motor is constant substantially, and only length overall slightly increases, and simple in structure, and it is few to increase number of spare parts.
In a word, keeping original Placement and sectional dimension, manufacture cost to increase under few situation, present embodiment has improved the application power of cycloid hydraulic motor under specific operation.Facts have proved that the in-built baking cycloid hydraulic motor processing technology of present embodiment is simple, has reliable braking effect, has reduced the manufacture difficulty of cycloid hydraulic motor.Adopt this device can save user cost, improve the global reliability that uses product.
In addition to the implementation, the utility model can also have other mode of executions, can be round structure or the like as the external form of motor.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 (5)
1. built-in integrated valve type braking cycloid hydraulic motor, an end is the body shell with liquid entering hole and refluxing opening, the cycloidal-pin wheel pair of middle part for constituting by stator and rotor, the other end is a braking device; Extended output shaft is equipped with in described body shell outer end, and the cylindrical of described output shaft is with the flow valve pocket, inner end engagement by internal spline and couple axle; The other end of described couple axle and the engagement of the internal spline of rotor; It is characterized in that: the other end of described couple axle extends eccentric boss, and described braking device contains Brake Block, and described Brake Block is fixedlyed connected with described stator, wherein is shaped on the step hole coaxial with output shaft; The step-like piston that matches with it is housed in the described step hole; The path section adjacent stator of described piston, the middle part has the brake hole that described eccentric boss can enter; The big footpath section of described piston is resisted against on the elastic component away from an end of stator, and the other end and described step hole form enclosed cavity; Has the oil circuit that is communicated with enclosed cavity on the described Brake Block; When enclosed cavity was full of pressure oil, described piston was in primary importance, and described eccentric boss is deviate from brake hole; When enclosed cavity release pressure oil, described piston is in the second place, and described eccentric boss inserts brake hole.
2. built-in integrated valve type braking cycloid hydraulic motor according to claim 1 is characterized in that: the center hole of described piston is step-like, is made of through the round platform hole of section with being positioned at greatly the cylindrical hole that is positioned at the path section; The circular cone stage clip that shape matches with it is housed in the described round platform hole, and the two ends of described circular cone stage clip are resisted against respectively on the step end face and Brake Block bonnet of described center hole.
3. built-in integrated valve type braking cycloid hydraulic motor according to claim 2 is characterized in that: in the center hole of described piston position limit pin is housed, the two ends of described position limit pin contact with the Brake Block bonnet with the end face of described eccentric boss respectively.
4. built-in integrated valve type braking cycloid hydraulic motor according to claim 3 is characterized in that: the approximate ellipsoidal of the cross section of described eccentric boss for being surrounded by two sections circular arcs, wherein the internal diameter of the radius of one section circular arc and brake hole matches.
5. built-in integrated valve type braking cycloid hydraulic motor according to claim 4 is characterized in that: described housing be provided with shuttle valve into and out of between the hydraulic fluid port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202958718U CN201739075U (en) | 2010-08-18 | 2010-08-18 | Built-in integrated valve type brake cycloid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202958718U CN201739075U (en) | 2010-08-18 | 2010-08-18 | Built-in integrated valve type brake cycloid hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739075U true CN201739075U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202958718U Expired - Lifetime CN201739075U (en) | 2010-08-18 | 2010-08-18 | Built-in integrated valve type brake cycloid hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915204A (en) * | 2010-08-18 | 2010-12-15 | 镇江大力液压马达有限责任公司 | Built-in integrated valve type braking cycloid hydraulic motor |
-
2010
- 2010-08-18 CN CN2010202958718U patent/CN201739075U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915204A (en) * | 2010-08-18 | 2010-12-15 | 镇江大力液压马达有限责任公司 | Built-in integrated valve type braking cycloid hydraulic motor |
| CN101915204B (en) * | 2010-08-18 | 2012-08-08 | 镇江大力液压马达有限责任公司 | Built-in integrated valve type braking cycloid hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110209 Effective date of abandoning: 20120808 |