CN203050496U - Dual hydraulic motor drive type gyrator - Google Patents
Dual hydraulic motor drive type gyrator Download PDFInfo
- Publication number
- CN203050496U CN203050496U CN 201320010780 CN201320010780U CN203050496U CN 203050496 U CN203050496 U CN 203050496U CN 201320010780 CN201320010780 CN 201320010780 CN 201320010780 U CN201320010780 U CN 201320010780U CN 203050496 U CN203050496 U CN 203050496U
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- hydraulic motor
- control valve
- oil
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Abstract
The utility model relates to a dual hydraulic motor drive type gyrator. The dual hydraulic motor drive type gyrator comprises a control valve, a first hydraulic motor and a second hydraulic motor, wherein the first hydraulic motor and the second hydraulic motor are used for outputting power to a power head. The control valve is provided with an A port, a B port, a C port and a D port. When the control valve is located at a left position, the A port and the B port form an open circuit, and the C port and the D port form an access. When the control valve is located at a right position, the A port and the C port form an access, and the B port and the D port form an access. The A port of the control valve and an oil inlet of the first hydraulic motor are respectively communicated with an oil inlet pipeline, an oil outlet of the first hydraulic motor is communicated with the D port of the control valve, the C port of the control valve is communicated with an oil inlet of the second hydraulic motor, and an oil outlet of the second hydraulic motor and the B port of the control valve are respectively communicated with an oil return pipeline. The dual hydraulic motor drive type gyrator is simple and reliable in structure, convenient and flexible to operate, low in manufacturing cost and maintenance cost, strong in adaptability, and capable of adapting to hostile working environments.
Description
Technical field
The utility model relates to a kind of biliquid pressure motor drive-type gyrator, specifically adopt two hydraulic motors, change to change output torque and rotating speed by the connection in series-parallel state that changes two hydraulic motors, the final device of realizing many grades of rotating speed output functions of unit head belongs to the drilling equipment technical field in the engineering machinery.
Background technology
Unit head in the rig through gear drive, drives the tool joint rotating normally by fluid motor-driven, drives following drilling tool rotation with this.The available dynamic head is generally infinitely variable speeds, i.e. exportable one grade of rotating speed only, and this does not meet the requirement of modernized mechanical work.
The operating mode of rig is more abominable, and its part and structure all should be design principles with simple, practicality; Require to install and convenient disassembly, and for ease of maintenaince, be fit to open-air area and use.And all there is baroque limitation in the rig of the machine power head type of using always now, does not meet the maneuverability requirement of field work, need be improved.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of biliquid pressure motor drive-type gyrator is provided, it adopts two hydraulic motors, change output torque and rotating speed by the connection in series-parallel state that changes two hydraulic motors, final many grades of rotating speed output functions that realize unit head, have simple in structure, reliable, advantage flexible to operation, and its manufacturing and maintenance cost are low, compliance is strong, can adapt to bad working environment, be specially adapted to infinite variable speed unit head.
The technical scheme that provides according to the utility model: biliquid pressure motor drive-type gyrator is characterized in that: comprise control valve and be used for first hydraulic motor and second hydraulic motor to the unit head outputting power; Described control valve has A, B, four ports of C, D, and when control valve was positioned at position, a left side, A port and B port formed and open circuit, and C port and D port form path; When control valve was positioned at right position, A port and C port formed path, and B port and D port form path; The A port of described control valve and the oil-in of described first hydraulic motor are communicated with in-line, the oil-out of described first hydraulic motor is communicated with the D port of control valve, the C port of described control valve is communicated with the oil-in of second hydraulic motor, and the B port of the oil-out of second hydraulic motor and described control valve all is communicated with return line.
The utility model compared with prior art, advantage is: the utility model adopts two hydraulic motors, change output torque and rotating speed by the connection in series-parallel state (namely passing through oil path control system) that changes two hydraulic motors, final many grades of rotating speed output functions that realize unit head have advantage simple in structure, reliable, flexible to operation, and its manufacturing and maintenance cost are low, compliance is strong, can adapt to bad working environment, is specially adapted to infinite variable speed unit head.
Description of drawings
Catenation principle schematic diagram when Fig. 1 is the utility model series connection (control valve is positioned at position, a left side).
Catenation principle schematic diagram when Fig. 2 is the utility model state in parallel (control valve is positioned at right position).
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in Figure 1 and Figure 2, biliquid pressure motor drive-type gyrator of the present utility model mainly contains control valve 1 and is used for forming to first hydraulic motor 2 and second hydraulic motor 3 of unit head outputting power.
Described control valve 1 has A, B, four ports of C, D, and when control valve 1 was positioned at position, a left side, A port and B port formed and open circuit, and C port and D port form path; When control valve 1 was positioned at right position, A port and C port formed path, and B port and D port form path.
The A port of described control valve 1 and the oil-in of described first hydraulic motor 2 are communicated with in-line, the oil-out of described first hydraulic motor 2 is communicated with the D port of control valve 1, the C port of described control valve 1 is communicated with the oil-in of second hydraulic motor 3, and the B port of the oil-out of second hydraulic motor 3 and described control valve 1 all is communicated with return line.
Concrete applicable cases of the present utility model is as follows:
1, first hydraulic motor 2 (see figure 1) of connecting with second hydraulic motor 3
Stir control valve 1 and be in position, a left side, it is obstructed that A port and B port form the fluid that opens circuit, C port and D port form path, first hydraulic motor 2 and second hydraulic motor 3 are series connection, second hydraulic motor 3 is driven by first hydraulic motor 2, the high rotating speed of first hydraulic motor, 2 outputs, low moment of torsion are finally realized the function that unit head is exported high rotating speed, hanged down moment of torsion.
2, first hydraulic motor 2 and second hydraulic motor, 3 (see figure 2)s in parallel
Stir control valve 1 and be in right position, A port and C port form path, B port and D port form path, fluid enters and is divided into two-way from in-line: the one tunnel enters the oil-in of second hydraulic motor 3 through A port and C port, drive second hydraulic motor 3, again from the oil return opening of second hydraulic motor 3 to return line; Another road directly enters the oil-in of first hydraulic motor 2, drives first hydraulic motor 2, goes out to return line from B port and D port again.In this process, fluid is realized first hydraulic motor 2 and 3 parallel connections of second hydraulic motor simultaneously to two hydraulic motor effects, and two hydraulic motors are exported the slow-speed of revolution, high moment of torsion, finally realizes the function of the unit head output slow-speed of revolution, high moment of torsion.
Concrete Application Example:
The initial flow 14.7L of fluid, the model of first hydraulic motor 2 and second hydraulic motor 3 all is J2K195, discharge capacity 0.195L/r calculates output speed and moment of torsion such as the following table (the gearratio i=59/21=2.81 between motor and the output main shaft 4) of unit head according to the hydraulic motor parameter of this specification.
| ? | In parallel | Series connection |
| Flow (L/min) | 14.7 | 14.7 |
| Motor output speed (r/min) | 32.89 | 75.28 |
| Motor output torque (Nm) | 442 | 452 |
| Unit head output speed (r/min) | 11.71 | 26.79 |
| Unit head output torque (Nm) | 2484 | 1267 |
| Pressure (bar) | 190 | 190 |
Claims (1)
1. biliquid pressure motor drive-type gyrator is characterized in that: comprise control valve (1) and be used for first hydraulic motor (2) and second hydraulic motor (3) to the unit head outputting power; Described control valve (1) has A, B, four ports of C, D, and when control valve (1) was positioned at position, a left side, A port and B port formed and open circuit, and C port and D port form path; When control valve (1) was positioned at right position, A port and C port formed path, and B port and D port form path; The oil-in of the A port of described control valve (1) and described first hydraulic motor (2) is communicated with in-line, the oil-out of described first hydraulic motor (2) is communicated with the D port of control valve (1), the C port of described control valve (1) is communicated with the oil-in of second hydraulic motor (3), and the B port of the oil-out of second hydraulic motor (3) and described control valve (1) all is communicated with return line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010780 CN203050496U (en) | 2013-01-09 | 2013-01-09 | Dual hydraulic motor drive type gyrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010780 CN203050496U (en) | 2013-01-09 | 2013-01-09 | Dual hydraulic motor drive type gyrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050496U true CN203050496U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320010780 Expired - Lifetime CN203050496U (en) | 2013-01-09 | 2013-01-09 | Dual hydraulic motor drive type gyrator |
Country Status (1)
| Country | Link |
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| CN (1) | CN203050496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075096A (en) * | 2013-01-09 | 2013-05-01 | 江苏省无锡探矿机械总厂有限公司 | Dual-hydraulic motor drive type gyrator |
-
2013
- 2013-01-09 CN CN 201320010780 patent/CN203050496U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075096A (en) * | 2013-01-09 | 2013-05-01 | 江苏省无锡探矿机械总厂有限公司 | Dual-hydraulic motor drive type gyrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |