CN2080572U - Hydraulic motor with radial plunger having cam-rollers - Google Patents
Hydraulic motor with radial plunger having cam-rollers Download PDFInfo
- Publication number
- CN2080572U CN2080572U CN 90221596 CN90221596U CN2080572U CN 2080572 U CN2080572 U CN 2080572U CN 90221596 CN90221596 CN 90221596 CN 90221596 U CN90221596 U CN 90221596U CN 2080572 U CN2080572 U CN 2080572U
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- CN
- China
- Prior art keywords
- cam
- roller
- oil
- plunger
- hydraulic motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a hydraulic motor, belonging to a variable capacity type engine driven by the liquid. In order to overcome the problems of complicated structure and big radial dimension of the traditional hydraulic motor, a cam transmission mechanism adopts an outer cam roller pair type, and an oil matching mechanism adopts the automatic compensation mechanism of the axial clearance of the static pressure. The utility model has the advantages of small radial size, big carrying capacity of the roller, and automatic compensation of the axial clearance of the oil matching mechanism. Besides, the lubrication is ensured, the service life is extended, and the liquid leakage is lowered.
Description
The utility model belongs to the variable capacity motor class of the liquid driven of F03C, and it relates to the new structure in the oil hydraulic motor.
As everyone knows, oil hydraulic motor is the executive component of a kind of switching energy pattern common in the mechanical engineering field.Its efficient height, easy to control is realized the advantage of slow speed high pulling torque easily.The development of multiaction radial piston hydraulic motor in the field starts from 20th century the fifties approximately, and recent two decades develops rapidly.On structure, traditional structure adopts the roller plunger to pay power transmission (individual other has the steel ball of employing plunger to pay), and journalled is oil distribution mechanism and cam ring structural type radially, and its complex structure, radial dimension are big, the cost of production height.In recent years for improving performance and simplified structure, some producers have done many researchs, the roller plunger occurred and paid power transmission, journalled radially oil distribution mechanism, cam ring multiaction radial piston hydraulic motor, this structure has still kept the radially essential characteristic of oil distribution mechanism of traditional cam ring, journalled.
The purpose of this utility model is to be the complex structure of the oil hydraulic motor that overcomes aforesaid conventional version, problem that radial dimension is big, the spy provides this programme, it adopts external cam can reduce radial dimension, force transfer element adopts roller, oil distribution mechanism is provided with the device of the automatic compensating axial clearance of static pressure, can improve service behaviour greatly.
By as above design, the same motor casing, plunger, cam force transmission mechanism, several parts compositions of oil distribution mechanism of also including of the oil hydraulic motor that the radial plunger strap cam roller that this programme provided is paid with traditional pattern, its concrete feature is: the power transmission pattern that it has adopted cam bawl to pay; Its oil distribution mechanism is the axial clearance automatic compensator that has static pressure, wherein its cam force transmission mechanism is the cam that adopts trough of belt, cam is the pattern that adopts external cam, its bottom land is the working surface of cam, the roller that contacts with cam working face is the behind that is contained in plunger by a sliding bearing, the groove width of its cam matches with the length of roller, plays to prevent that the roller plunger from paying the effect of rotation, is provided with the stage clip that guarantees that roller contacts with cam in plunger case on the top of plunger.Its oil distribution mechanism is by the revolution oil-distributing plate that is contained on the output shaft, be contained in the backing plate on the casing, and the axial clearance compensation plate that is contained on the bonnet constitutes, on the revolution oil-distributing plate, the cylindrical identical with multifunctional effect number arranged to the oil circuit of end face oil supply hole and the passage of other end center to end oil supply hole, backing plate is for anti-pin and the housing location of migrating, there are several to link up the circular arc slotted hole of finger plate oilhole and housing oilhole on it, its axial clearance compensation plate connects with bonnet with pin, play anti-rotation, all leave gap or the passage that pressure oil is introduced in the behind of compensating plate and the napex of cylindrical.Sliding bearing on its roller is to adopt i.e. " DU " material of bimetal antifriction material, with guarantee roller at work running and guarantee to bear bigger load.
Adopt this programme can embody following superiority: (1) adopts the external cam pattern can reduce radial dimension; (2) adopt roller and bimetal ball-and-roller bearing, it can simplify the structure and can improve bearing capacity; (3) simple in structure, improved manufacturability.
Should flow the structure and the working procedure of pressure motor below in conjunction with description of drawings.
Fig. 1 is the axial section of this programme;
Fig. 2 is the radial section figure of this programme.
Motor is made up of housing (1), protecgulum (2), bonnet (15), output shaft (6) as shown in the figure, at the plunger case of housing (1) plug (22) is housed, and stage clip (21) is arranged in the cylinder, Plunger (20), roller (19). Cam adopts assembled, and evagination torus (18) is fixed on the output shaft (6), and output shaft (6) is supported on the housing (1) with bearing (7), (8). Oil sealing (4), (5) are housed in the protecgulum (2), prevent to external leakage, and connect with housing with screw (3). With oil sealing (17) sealing, connect with housing (1) with screw (16) between bonnet (15) and the housing (1). Oil distribution mechanism is made up of with housing (1) backing plate (10), revolution oil-distributing plate (11), axial clearance compensation plate (12). Backing plate (10) is connected with housing (1) by pin (9), and axial clearance compensation plate (12) is located at bonnet (15) with pin (13).
Working as shown in the figure hydraulic fluid is imported by import " A ", fenestra " a " and the fenestra " b " in the housing (1) through revolution oil-distributing plate (11) enter in the cylinder hole, plunger (20) top " C " of radial arrangement, promoting plunger (20) moves downward, plunger (20) is passed to roller (19) with hydraulic coupling, and roller is pressed on the curved surface of cam (18) tightly. After plunger (20) moves downward the work lift arrival dead point of covering a cam, they are under forcing of cam (18) promotes, the oil return fenestra " d " of liquid in fenestra " c ", " b " and revolution oil-distributing plate (11) that begins to move upward and will work enters oil return opening " B ", sends back in the system. When covering a cam lift arrival top dead-centre, roller (19), plunger (20) just finished an operation cycle. Plunger case, plunger arrange as required, mostly are even number. Cam can be designed to the multiaction formula, namely finishes a plurality of operation cycle when cam each plunger that turns around.
Installed stage clip (21) on the plunger in this programme (20) additional, it can make roller and cam keep in touch, and makes work coordination, avoids impact noise. The gap is all left at cylindrical and the back side of the end clearance compensating plate in oil distribution mechanism, can introduce pressure oil, guarantees that the revolution oil-distributing plate fits tightly in rotation and between backing plate and the compensating plate, and makes the axial force energy basic Keep balance, make the end face working clearance can keep certain oil film thickness, thereby reduce the wearing and tearing of working face and the leakage of hydraulic fluid.
Embodiment: Fig. 1, Figure 2 shows that the most preferred embodiment of this programme: it is the oil hydraulic motor of 6 cylinders, 2 action types, plunger diameter ∮ 55, roller diameter ∮ 35, its boundary dimension 350 * ∮ 270 * 270mm, it is applicable to 10.0～25.0MPa pressure, when it during at 5～315 rev/mins of rotating speeds, moment of torsion is 800～1600Nm.Its roller adopts Bearing Steel, and plunger adopts high strength copper alloy or wear resisting cast iron.
Claims (4)
1, a kind of radial plunger has the oil hydraulic motor that the external cam roller is paid force transmission mechanism, and it is made up of motor casing, plunger, cam force transmission mechanism, oil distribution mechanism, and the cam force transmission mechanism that it is characterized in that it is to adopt the external cam roller to pay; Its oil distribution mechanism is the axial clearance automatic compensator that has static pressure, wherein its cam force transmission mechanism is the external cam (18) that adopts trough of belt, the roller (19) that contacts with its working surface is the behind that is contained in plunger (20) by a sliding bearing (f), is provided with the stage clip (21) that guarantees that roller contacts with cam in plunger case on the top of plunger; Its oil distribution mechanism is by being contained in revolution oil-distributing plate (11) on the output shaft (6), being contained in the backing plate (10) on the housing (1) and the axial clearance compensation plate (12) that is contained on the bonnet (15) is constituted, groove or the face of introducing pressure oil being arranged in the behind of compensating plate (12).
2, according to the described oil hydraulic motor of claim 1, it is characterized in that the bottom land on its cam (18) is the working surface of cam, the width of its groove is to match with the length of roller (19).
3, according to claim 1 and 2 described oil hydraulic motors, the sliding bearing (f) that it is characterized in that the roller (19) in its cam force transmission mechanism is to adopt i.e. " DU " material of bimetal antifriction material.
4, according to the described oil hydraulic motor of claim 1, it is characterized in that the axial clearance compensation plate (12) of its oil distribution mechanism is located with locating stud (13) with bonnet (15), gap or the passage that pressure oil is introduced all left at the circular top part and the back side outside it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221596 CN2080572U (en) | 1990-10-08 | 1990-10-08 | Hydraulic motor with radial plunger having cam-rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221596 CN2080572U (en) | 1990-10-08 | 1990-10-08 | Hydraulic motor with radial plunger having cam-rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2080572U true CN2080572U (en) | 1991-07-10 |
Family
ID=4899705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90221596 Withdrawn CN2080572U (en) | 1990-10-08 | 1990-10-08 | Hydraulic motor with radial plunger having cam-rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2080572U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932826A (en) * | 2008-01-29 | 2010-12-29 | 波克莱恩液压工业公司 | Be used to assist the mechanically operated hydraulic engine apparatus of vehicle |
| CN105134693A (en) * | 2015-08-05 | 2015-12-09 | 中煤科工集团西安研究院有限公司 | Oil distribution structure with automatic gap compensation function |
-
1990
- 1990-10-08 CN CN 90221596 patent/CN2080572U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932826A (en) * | 2008-01-29 | 2010-12-29 | 波克莱恩液压工业公司 | Be used to assist the mechanically operated hydraulic engine apparatus of vehicle |
| CN101932826B (en) * | 2008-01-29 | 2013-06-12 | 波克莱恩液压工业公司 | Hydraulic engine device for assistance in the mechanical transmission of a vehicle |
| CN105134693A (en) * | 2015-08-05 | 2015-12-09 | 中煤科工集团西安研究院有限公司 | Oil distribution structure with automatic gap compensation function |
| CN105134693B (en) * | 2015-08-05 | 2017-01-04 | 中煤科工集团西安研究院有限公司 | There is the oil distribution structure of clearance automatic compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |