CN201739074U - Built-in type brake cycloid hydraulic motor - Google Patents
Built-in type brake cycloid hydraulic motor Download PDFInfo
- Publication number
- CN201739074U CN201739074U CN2010201848744U CN201020184874U CN201739074U CN 201739074 U CN201739074 U CN 201739074U CN 2010201848744 U CN2010201848744 U CN 2010201848744U CN 201020184874 U CN201020184874 U CN 201020184874U CN 201739074 U CN201739074 U CN 201739074U
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- brake
- braking
- output shaft
- hydraulic motor
- axle
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Abstract
The utility model relates to a built-in type brake cycloid hydraulic motor, belonging to the technical field of the hydraulic transmission. The motor housing is installed with a cycloid needle wheel pair and a distributing mechanism, and one end of the motor housing is provided with an output shaft. One end of the housing far away the output shaft is fixedly connected with the brake housing by a baffle; one end in the brake housing far away the baffle is provided with a piston which can rotate in the axial direction, a group of friction sheets which are distributed at interval and bond in circumferential direction are formed by the closed inner ends of the piston and the brake housing, the intervals of the friction sheets are respectively inserted with brake sheets to form a friction sheet braking mechanism. The braking sheets and the rotatable braking shaft are bond and connected in circumferential direction, the end surface of the braking shaft near the baffle is provided with a long groove countersink, and one end of a linking shaft far away the output shaft is prolonged and passes through the baffle, to form a mobile pair which is bond in axial direction with the long groove countersink. The utility model has impact arrangement, can keep the radial size of the hydraulic motor, can be broken timely even if the torque is bigger, has stable and reliable braking, and can avoid leaking of the hydraulic oil when braking.
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 in-built baking cycloid hydraulic motor 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 ZL200720041824.9 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, new demand to the cycloid hydraulic motor proposition, be that motor is cutting out simultaneously into and out of hydraulic fluid port, is being that motor is under the braking working state, commentaries on classics, stator mesh between the high low pressure oil pocket and should not leak, thereby make the motor rotor instantaneous static motionless.Obviously, this usage requirement and existing motor change, the motion principle of stator pair is inconsistent because change, stator needing to leave certain gap movingly in the motion mutually, leak unavoidably between the two during braking.Therefore, by close oil hydraulic motor self into and out of hydraulic fluid port realize the moment braking be in theory be difficult to practicable, for example guaranteeing to make the lifting of hydraulic pressure loop wheel machine stop at a certain special position under the safe and reliable prerequisite, the cycloid hydraulic motor of existing general operating mode can not satisfy usage requirement, and add braking device, can cause the oil hydraulic motor cost to increase undoubtedly, it is big that volume becomes.
The model utility content
The technical problems to be solved in the utility model is: propose a kind of compact structure, can realize the cycloid hydraulic motor of the instantaneous braking of high pulling torque, thereby satisfy various new user demands under the constant substantially prerequisite of original radial dimension keeping.
The claimant recognizes that through research and analysis existing cycloid hydraulic motor changes the secondary pressure difference by high low pressure hydraulic oil of stator and forms moment of torsion, and couple axle transfers torque to output shaft, by output shaft moment of torsion is exported again.Therefore, realize that braking can have two approach in that oil hydraulic motor is inner, the one, output shaft controlled realize that another is to realize by couple axle is controlled.Because the structure and the space at output shaft place are restricted, the realization of first kind of mode will increase the weight and volume of motor, and cost control is difficult, and second kind of control mode of braking at couple axle, the profile size of motor is constant substantially, and length overall slightly increases, and is simple in structure, it is few to increase number of spare parts, adopts overall structure to be convenient to the sealing of brake fluid pressure oil.
On the above-mentioned cognition basis, the technological scheme that the claimant has proposed the utility model in-built baking cycloid hydraulic motor is equipped with cycloidal-pin wheel pair and flow-distribution mechanism in this motor casing, and an end is equipped with output shaft; The rotor of described cycloidal-pin wheel pair is by the external gear engagement of internal spline and couple axle, and an end of the contiguous output shaft of described couple axle is connected with the output shaft transmission; Described housing is fixedlyed connected with brake casing by dividing plate away from an end of output shaft; Being equipped with away from an end of dividing plate in the described brake casing can axially movable piston, the inner vicinity of described piston constitutes circumferentially one group of friction plate spaced apart of constraint with brake casing, difference plug-in mounting braking plate constitutes friction disc brake mechanism in the described friction plate interval; Described braking plate circumferentially retrains with rotating brake axle and is connected, and the end face of the contiguous dividing plate of described brake axle is shaped on the elongated slot counterbore; Described couple axle passes dividing plate away from the end prolongation of output shaft, with the sliding pair of elongated slot counterbore formation axial constraint.
When oil hydraulic motor was in the motion working state, the piston in the break was in release position, had the gap between friction plate and the braking plate, and the couple axle extended end that is positioned at the elongated slot counterbore drives the brake axle rotation with the circular motion track.When piston is subjected to braking control, when friction plate one side shifting compressing friction plate, friction plate closely contacts with braking plate, thereby brake axle is stopped operating, and then the extended end that makes couple axle can't continue to do circular motion and force the couple axle stall, reaches the purpose of oil hydraulic motor moment braking.
Adopt structure of the present utility model, not only compact in design can keep the radial dimension of oil hydraulic motor constant, it is few to increase number of spare parts, and owing to be the inside brake structure, even moment of torsion more also can in time be braked, and braking is steadily reliable, and hydraulic oil leaks in the time of can avoiding braking.
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.
The stator of commentaries on classics pair 01 is arranged, output shaft 02, couple axle 1, dividing plate 2 among the figure, Brake Block 3, sealing gasket 4, movable body 5, bearing 6, locating stud 7, brake casing 8, bonnet 9, O type circle 10,16, retainer ring 11,17, piston 12, dish spring 13, packing ring 14, back steel disc 15, bolt 18, middle steel disc 19, braking plate 20, preceding steel disc 21, brake axle 22, screw 23.
(A) is Fig. 1 embodiment's brake axle structural representation among Fig. 2, and (B) is the right elevation of (A) among Fig. 2, and (C) among Fig. 2 is the left view of (A).
(A) is Fig. 1 embodiment's braking plate structural representation among Fig. 3, and (B) is the side view of (A) among Fig. 3.
Embodiment
Embodiment one
The basic structure of the in-built baking cycloid hydraulic motor of present embodiment, global sections size, Conncetion cimension all with present existing medium and small discharge capacity axle distributing cycloid hydraulic motor (for example BMR, BMRS motor, typical structure is referring to the ZL200720041824.9 Chinese patent literature) identical, wherein set up the mechanism that realizes peculiar braking function.As shown in Figure 1, its basic structure is: being equipped with in the housing changes the cycloidal-pin wheel pair that stator secondary 01 constitutes, and flow-distribution mechanism same as the prior art, and an end is equipped with output shaft 02.The rotor of cycloidal-pin wheel pair is by the external gear engagement of internal spline and couple axle 1, and an end of couple axle 1 contiguous output shaft 02 is connected by the gear pair transmission with output shaft.Housing is fixedlyed connected with brake casing 8 by dividing plate 2 away from an end of output shaft 02.Being equipped with away from ends of dividing plate 2 in the brake casing 8 can axially movable piston 12, piston 12 inner vicinities constitute the one group of friction plate spaced apart that circumferentially retrains with brake casing 8 by locating stud 7, difference plug-in mounting braking plate 20 in its interval, thus constitute friction disc brake mechanism.Braking plate 20 has passive preceding steel disc 21 and back steel disc 15.Braking plate 20 as shown in Figure 3, the middle part is shaped on long flat hole, is sleeved on the flat axle of length that rotatable brake axle 22 shapes match, forming circumferentially, constraint connects.Brake axle 22 as shown in Figure 2, the end face of contiguous dividing plate 2 is shaped on the elongated slot counterbore, couple axle 1 prolongs away from an end of output shaft 02 and passes dividing plate 2, constitutes the sliding pair of axial constraint by the movable body 5 and the elongated slot counterbore of termination.Bulb can be processed in movable body 5, also can be joint shaft bearing, in the scope that structure space allows with the extension of the couple axle structure that integrally combines.
The in-built baking cycloid hydraulic motor of present embodiment has powerful moment braking function, piston 12 makes the friction plate trend compress the dish spring 13 of braking plate away from dress between the bonnet 9 of the slotted eye of dividing plate 2 one ends and brake casing, its extruding is derived from the oil cylinder braking device with release braking force, the dish spring is the power source of static brake, and piston pressure liquid forms thrust, react on the dish spring, and then discharge braking plate, motor is rotated.When needs were braked, as long as the pressure release of piston place, the dish spring was a momentary reset, thereby brake axle is braked immediately, realized the motor stall.
In addition, present embodiment also has following structural feature:
1, the length of couple axle 1 suitably extends, and away from the end formation undergauge extending end of output shaft, the eccentric motion (revolution of rotor and stator and rotation) that is beneficial to rotor drives the brake axle rotation.
2, for the ease of the installation of motor and braking device, brake casing is connected with motor casing by the break seat, promptly adopts the mode of structure that divides two-part combination, earlier break seat and motor body is connected, and the arrester shell body portion is connected with bolt again.
3, in order to guarantee smooth rotation, brake axle 22 cylindricals constitute revolute pair by needle bearing 6 and Brake Block device 3, help compact structure like this.
In a word, by to the integrally-built research of cycloid hydraulic motor, especially have a research of distributing construction cycloid hydraulic motor integral structure layout, the claimant finds out the implementation that its increase has braking function, properly settled the relevant technologies problem, keeping original Placement and sectional dimension, manufacture cost to increase under few situation, improved the application power under the cycloid hydraulic motor 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 (7)
1. an in-built baking cycloid hydraulic motor is equipped with cycloidal-pin wheel pair and flow-distribution mechanism in this motor casing, and an end is equipped with output shaft; The rotor of described cycloidal-pin wheel pair is by the external gear engagement of internal spline and couple axle, and an end of the contiguous output shaft of described couple axle is connected with the output shaft transmission; It is characterized in that: described housing is fixedlyed connected with brake casing by dividing plate away from an end of output shaft; Being equipped with away from an end of dividing plate in the described brake casing can axially movable piston, the inner vicinity of described piston constitutes circumferentially one group of friction plate spaced apart of constraint with brake casing, difference plug-in mounting braking plate constitutes friction disc brake mechanism in the described friction plate interval; Described braking plate circumferentially retrains with rotating brake axle and is connected, and the end face of the contiguous dividing plate of described brake axle is shaped on the elongated slot counterbore; Described couple axle passes dividing plate away from the end prolongation of output shaft, with the sliding pair of elongated slot counterbore formation axial constraint.
2. according to the described in-built baking cycloid hydraulic motor of claim 1, it is characterized in that: described piston makes the friction plate trend compress the dish spring of braking plate away from dress between the bonnet of the slotted eye of dividing plate one end and described brake casing.
3. according to claim 1 or 2 described in-built baking cycloid hydraulic motors, it is characterized in that: described braking plate middle part is shaped on long flat hole, is sleeved on the flat axle of length that described brake axle shape matches, and forming circumferentially, constraint connects.
4. according to the described in-built baking cycloid hydraulic motor of claim 3, it is characterized in that: described brake casing is connected with motor casing by the break seat.
5. according to the described in-built baking cycloid hydraulic motor of claim 4, it is characterized in that: described brake axle cylindrical constitutes revolute pair by needle bearing and Brake Block device.
6. according to the described in-built baking cycloid hydraulic motor of claim 5, it is characterized in that: described braking plate has passive preceding steel disc and back steel disc.
7. according to the described in-built baking cycloid hydraulic motor of claim 6, it is characterized in that: described couple axle forms the undergauge extending end away from an end of output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201848744U CN201739074U (en) | 2010-05-11 | 2010-05-11 | Built-in type brake cycloid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201848744U CN201739074U (en) | 2010-05-11 | 2010-05-11 | Built-in type brake cycloid hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739074U true CN201739074U (en) | 2011-02-09 |
Family
ID=43554350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201848744U Expired - Fee Related CN201739074U (en) | 2010-05-11 | 2010-05-11 | Built-in type brake cycloid hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739074U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839209A (en) * | 2010-05-11 | 2010-09-22 | 镇江大力液压马达有限责任公司 | In-built baking cycloid hydraulic motor |
| CN103758691A (en) * | 2014-01-09 | 2014-04-30 | 山东瑞诺液压机械有限公司 | Integrated internally-installed forced wet-type self-locking cycloid hydraulic motor structure |
| 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 |
-
2010
- 2010-05-11 CN CN2010201848744U patent/CN201739074U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839209A (en) * | 2010-05-11 | 2010-09-22 | 镇江大力液压马达有限责任公司 | In-built baking cycloid hydraulic motor |
| CN103758691A (en) * | 2014-01-09 | 2014-04-30 | 山东瑞诺液压机械有限公司 | Integrated internally-installed forced wet-type self-locking cycloid hydraulic motor structure |
| 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 |
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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 |
Granted publication date: 20110209 Termination date: 20180511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |