CN201599064U - Plunger type hydraulic synchronous motor - Google Patents
Plunger type hydraulic synchronous motor Download PDFInfo
- Publication number
- CN201599064U CN201599064U CN2010201121551U CN201020112155U CN201599064U CN 201599064 U CN201599064 U CN 201599064U CN 2010201121551 U CN2010201121551 U CN 2010201121551U CN 201020112155 U CN201020112155 U CN 201020112155U CN 201599064 U CN201599064 U CN 201599064U
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- hydraulic
- hydraulic motors
- oil
- plunger
- motor
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Abstract
The utility model discloses a plunger type hydraulic synchronous motor, which comprises at least two plunger hydraulic motors which are same in appearance, structure and emission. Each hydraulic motor is formed by a casing, a plunger, a crankshaft, an oil distribution plate and an oil inlet-outlet valve block. The plunger type hydraulic synchronous motor is characterized in that a partition board is arranged between the two adjacent hydraulic motors which are connected with the same through bolts, and the crankshafts of the plurality of hydraulic motors are connected through spline shafts rigidly. In work, the hydraulic motors run and stop at the same time and have same rotational speed, motion curves of the hydraulic motors are completely parallel to each other, and output volumes of the hydraulic motors are kept constantly in an 'equivalent' relation scarcely affected by factors as load change, leakage and the like, thereby having fine synchronous performance. The plunger type hydraulic synchronous motor has reasonable structure, low manufacturing cost and high reliability, and ideal synchronous performance of the motor ensures reliability of equipment, guarantees smooth running of production lines, avoids production accidents and incalculable economical loss, and increases service life and reliability of a whole system.
Description
Technical field
The utility model relates to the motor in the hydraulic system, particularly a kind of plunger hydraulic syncmotor that can make executive component synchronous operation in the system.
Background technique
Because the hydraulic transmission system has quite high energy density and conversion multiplying power, is enough in the very little device space, produces very big work strength; In industry or military industry equipment, be subjected to using widely thus; Along with running mechanism develops rapidly, engineering excavation machine, truck crane, truck-mounted crane, development machine etc., the synchronous hydraulic control technique becomes the important embodiment of overall efficiency and performance, and the application of Ji Yuehua green technology is also more and more important simultaneously.A lot of thus occasions require two or more hydraulic jack synchronization motions, have just produced the hydraulic system of a plurality of actuators, the technical requirements of synchronous operation.Especially under the unbalanced operating mode of heavy duty, require more outstanding synchronously; Otherwise, can cause that promptly equipment performance is inferior, lose efficacy, even can be badly damaged.Example: hydraulic pressure support platform, elevator landing can cause production accident and immeasurable economic loss because of load centre-of gravity shift; Its synchronization accuracy promptly becomes weighs the key index of estimating the lift platform performance, so the synchronous final using character that has determined whole system of hydraulic system.
The method of all controlling with machinery or electrical system synchronously of hydraulic system was used the hydraulic pressure part flow arrangement widely in the past, used 2-4 identical executive component in same hydraulic system, as, speed synchronization valve, diverter valve, series flow control valve, Proportional valve etc.And difficulty can reach expectant control results, and its synchronization accuracy is poor, instability, equipment reliability are poor, and maintenance difficult has increased the complexity and the manufacture cost of equipment again.Therefore, solve the synchronous control accuracy problem of many hydraulic servomechanisms when uniting driving, the important techniques meaning is arranged.
Summary of the invention
The purpose of this utility model is: provide a kind of high-precision, can keep constantly synchronously, and frequency response can reach the plunger hydraulic syncmotor of higher level.
For reaching above-mentioned purpose, plunger hydraulic syncmotor of the present utility model, it comprises: at least two plunger hydraulic motors, described oil hydraulic motor is made up of housing, piston, bent axle, oil distribution casing and oil inlet and outlet valve piece, it is characterized in that: be provided with dividing plate in the middle of the two adjacent oil hydraulic motors, connect by bolt, the bent axle axle head of described oil hydraulic motor is provided with internal spline, two oil hydraulic motor inside crankshafts are rigidly connected through splined shaft, and described oil distribution casing places in the oil distribution casing end cap on the housing.
The profile of described oil hydraulic motor, structure and discharge capacity are all identical.
The oil inlet and outlet valve piece of described oil hydraulic motor is provided with relief valve and one-way valve, and oil inlet and outlet valve piece bottom also is provided with the leg of being convenient to install.
Effect of the present utility model is: the oil hydraulic motor that several discharge capacities are identical, be connected with bolt by dividing plate, and their bent axle is rigidly connected by splined shaft; So when work, can keep identical rotating speed, again because discharge capacity is identical, thus can export identical flow, thus can satisfy the synchronization control requirement of equipment, improve equipment reliability greatly.
Description of drawings
Fig. 1 is the structure elevational cross-sectional view of the utility model;
Fig. 2 is the side view of the utility model;
Fig. 3 is the three flow path structure elevational cross-sectional view of the utility model;
Fig. 4 is the four flow path structure elevational cross-sectional view of the utility model.
Specific embodiment
Below in conjunction with accompanying drawing mode of execution of the present utility model is done detailed description:
Referring to Fig. 1, Fig. 2 the utility model relates to a kind of plunger hydraulic syncmotor, it comprises: at least two profiles, the all identical plunger hydraulic motor 1 of structure with discharge capacity, described oil hydraulic motor is by housing 11, piston 12, bent axle 13, oil distribution casing 14 and oil inlet and outlet valve piece 15 are formed, it is characterized in that: be provided with dividing plate 2 in the middle of the two adjacent oil hydraulic motors 1, connect by bolt 3, bent axle 13 axle heads 131 of described oil hydraulic motor 1 are provided with internal spline, a plurality of oil hydraulic motor inside crankshafts 13 connect through splined shaft 4 rigidity, its piston 12, bent axle 13 and oil distribution casing 14 one to bit line, make input flow rate keep " equivalent " relation, guarantee the synchronization accuracy of each output flow to greatest extent.
During work, fluid enters piston cavity 121 from the oil distribution casing 14 of filler opening 151 in oil distribution casing end cap 111, act on the top of piston 12, by connecting rod, act on the bent axle 13, make bent axle 13 rotations, this moment, oil distribution casing 14 was along with rotation together, it is by the variation of piston cavity 121 volumes, and fluid is discharged from oil outlet 152 again through oil distribution casing 14; So circulation, all oil hydraulic motors that link together all are motions like this, the all hydraulic motor is rigidly connected through splined shaft 4 again simultaneously, rotate simultaneously and stop simultaneously, rotating speed is identical, because of their Motion curvess are very parallel, has good net synchronization capability, promptly, make motor 1 and motor 1 ' and motor 1 ... when load produces great changes, the output flow of its motor still keeps " equivalent " relation, be subjected to factor affecting such as load variations, leakage hardly, thereby the system that makes has high synchronization accuracy and peak output utilization factor.
The oil inlet and outlet of described oil hydraulic motor 1 oil inlet and outlet valve piece 15 is provided with relief valve 153 and one-way valve 154, oil inlet and outlet valve piece 15 bottoms also are provided with the leg of being convenient to install 5, when its relief valve 153 runs to end of travel at certain executive component of hydraulic system, can compensate synchronization error, make the end of the slow element operation of operation, go to overload protective function; Its one-way valve 154 can make each piston cavity can both maintain the pressure minimum of an about 4bar, the fastest oil hydraulic cylinder generation emptying phenomenon of motion when preventing oil return.
Fig. 3 is the three flow path structure sectional views of the utility model.
Fig. 4 is the four flow path structure sectional views of the utility model.
Rational in infrastructure, the low cost of manufacture of the utility model, good reliability, its comparatively ideal net synchronization capability has been guaranteed the reliability of equipment, guarantees that production line can trouble-free operation, avoid production accident and immeasurable economic loss, improved the life-span and the reliability of whole system.
The above only is example of the utility model, it is not the practical range of placing restrictions on the invention, all equivalent variations of doing according to the described structure of the utility model claim, feature and principle all should be included in the utility model application range.
Claims (3)
1. plunger hydraulic syncmotor, it comprises: at least two plunger hydraulic motors, described oil hydraulic motor is made up of housing, piston, bent axle, oil distribution casing and oil inlet and outlet valve piece, it is characterized in that: be provided with dividing plate in the middle of the two adjacent oil hydraulic motors, connect by bolt, the bent axle axle head of described oil hydraulic motor is provided with internal spline, and two oil hydraulic motor inside crankshafts are rigidly connected through splined shaft, and described oil distribution casing places in the oil distribution casing end cap on the housing.
2. a kind of plunger hydraulic syncmotor according to claim 1, it is characterized in that: the profile of described two oil hydraulic motors, structure and discharge capacity are all identical.
3. a kind of plunger hydraulic syncmotor according to claim 1 is characterized in that: the oil inlet and outlet valve piece of described oil hydraulic motor is provided with relief valve and one-way valve, and oil inlet and outlet valve piece bottom also is provided with the leg of being convenient to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201121551U CN201599064U (en) | 2010-02-10 | 2010-02-10 | Plunger type hydraulic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201121551U CN201599064U (en) | 2010-02-10 | 2010-02-10 | Plunger type hydraulic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599064U true CN201599064U (en) | 2010-10-06 |
Family
ID=42810118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201121551U Expired - Fee Related CN201599064U (en) | 2010-02-10 | 2010-02-10 | Plunger type hydraulic synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020189A (en) * | 2015-08-12 | 2015-11-04 | 西安汇鑫传动控制有限责任公司 | Novel multi-output-shaft hydraulic drive device |
-
2010
- 2010-02-10 CN CN2010201121551U patent/CN201599064U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020189A (en) * | 2015-08-12 | 2015-11-04 | 西安汇鑫传动控制有限责任公司 | Novel multi-output-shaft hydraulic drive device |
| CN105020189B (en) * | 2015-08-12 | 2019-09-27 | 西安汇鑫传动控制有限责任公司 | A kind of multi-output shaft fluid pressure drive device |
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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: 20101006 Termination date: 20150210 |
|
| EXPY | Termination of patent right or utility model |