CN203743101U - Multi-torque hydraulic system of power head of rotary drilling rig - Google Patents
Multi-torque hydraulic system of power head of rotary drilling rig Download PDFInfo
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- CN203743101U CN203743101U CN201420034119.6U CN201420034119U CN203743101U CN 203743101 U CN203743101 U CN 203743101U CN 201420034119 U CN201420034119 U CN 201420034119U CN 203743101 U CN203743101 U CN 203743101U
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- hydraulic fluid
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Abstract
The utility model provides a multi-torque hydraulic system of a power head of a rotary drilling rig. The multi-torque hydraulic system is characterized by comprising a pump set. An oil output port of a pilot pump of the pump set is connected with an oil inlet of a handle-operated valve of the power head, a first oil port of the handle-operated valve of the power head is connected with a first pilot oil inlet and a second pilot oil inlet of a positive flow or negative flow multi-way valve, a second oil port of the handle-operated valve of the power head is connected with a third pilot oil inlet and a fourth pilot oil inlet of the positive flow or negative flow multi-way valve, a first oil port and a second oil port of the positive flow or negative flow multi-way valve are connected with a first oil port of a hydraulic motor and a first oil port of a multifunctional oil supplementary valve, a third oil port and a four oil port of the positive flow or negative flow multi-way valve are connected with a second oil port of the hydraulic motor and a second oil port of the multifunctional oil supplementary valve, and a third port of the multifunctional oil supplementary valve is connected with an oil tank. The multi-torque hydraulic system is convenient to install and operate, and can improve the hole forming efficiency of the rotary drilling rig.
Description
Technical field
The utility model relates to a kind of rotary digging drill power head hydraulic system, can be used for arranging the unit head hydraulic system of multistage moment of torsion.
Background technique
Unit head is one of most important operation mechanism of rotary drilling rig, the major impetus source while being also rotary drilling rig boring work, and it is comprised of speed reducer, oil hydraulic motor, power box and balladeur train etc.During rotary drilling rig boring work, motor passes through oil hydraulic pump, convert mechanical energy to hydraulic energy, by hydraulic partss such as selector valve, pipelines, hydraulic energy is passed to oil hydraulic motor again, by oil hydraulic motor, convert mechanical energy to, by speed reducer, power box the most at last transmission of power to drilling rod, thereby realize creeping into of rotary drilling rig.Multifunction along with rotary drilling rig configuration, also more diversified to the requirement of cobalt bar, different construction operating modes and different engineering methods are different to the requirement of load, the unit head moment of torsion of single-mode cannot meet the usage requirement of multifunction now, need a kind of unit head system that many moments of torsion can be provided, meet current rotary drilling rig and configure different drilling rod requirements.
Summary of the invention
The purpose of this utility model is to provide a kind of rotary drilling rig power head system with multistage torque demand simple in structure, easy to operate.
In order to achieve the above object, the utility model provides a kind of many torque hydraulics of rotary digging drill power head system, it is characterized in that, comprise pump group, the first main pump output oil port of pump group connects the first filler opening of positive flow or minus flow multi-way valve, the second main pump output oil port of pump group connects the second filler opening of positive flow or minus flow multi-way valve, the pioneer pump output oil port of pump group connects the filler opening of the lever operated valve of elevator and the filler opening of the lever operated valve of unit head, the first hydraulic fluid port of the lever operated valve of unit head connects the first guide oil entrance and the second guide oil entrance of positive flow or minus flow multi-way valve, the second hydraulic fluid port of the lever operated valve of unit head connects the 3rd guide oil entrance and the 4th guide oil entrance of positive flow or minus flow multi-way valve, the first hydraulic fluid port of positive flow or minus flow multi-way valve and second the first hydraulic fluid port of hydraulic fluid port connecting fluid pressure motor and the first hydraulic fluid port of multi-functional Fill valve, the 3rd hydraulic fluid port of positive flow or minus flow multi-way valve and the 4th the second hydraulic fluid port of hydraulic fluid port connecting fluid pressure motor and the second hydraulic fluid port of multi-functional Fill valve, the 3rd hydraulic fluid port of multi-functional Fill valve connects fuel tank.
Preferably, described multi-functional Fill valve comprises the first spool, the second spool, the 3rd spool and the 4th spool, the first spool and the second spool are all connected the first hydraulic fluid port and second hydraulic fluid port of multi-functional Fill valve, the first spool connects the 3rd hydraulic fluid port of multi-functional Fill valve, and the second spool, the 3rd spool and the 4th spool are connected successively.
Preferably, described pump group comprises motor and the two main pumps and the pioneer pump that are connected with motor, and two main pumps have respectively the first main pump output oil port and the second main pump output oil port, and pioneer pump has pioneer pump output oil port.
Preferably, the hydraulic fluid port of the described lever operated valve of elevator is provided with pressure switch or pressure transducer.
Compared with prior art, the beneficial effects of the utility model are:
The utility model provides a kind of hydraulic system that makes existing rotary digging drill power head have many moments of torsion gear, be applied in above the complete machine hydraulic system with positive flow and minus flow control mode, install, easy to operate, can improve the working efficiency of rotary drilling rig pore-forming.
Accompanying drawing explanation
Fig. 1 is many torque hydraulics of rotary digging drill power head system architecture schematic diagram.
Embodiment
Below in conjunction with embodiment, illustrate the utility model.
Embodiment
As shown in Figure 1, for many torque hydraulics of rotary digging drill power head system architecture schematic diagram, described many torque hydraulics of rotary digging drill power head system, comprise pump group 1, described pump group 1 comprises motor and the two main pumps and the pioneer pump that are connected with motor, two main pumps have respectively the first main pump output oil port A11 and the second main pump output oil port B11, and pioneer pump has pioneer pump output oil port C11.The first main pump output oil port A11 of pump group 1 connects the first oil inlet P 40 of positive flow multi-way valve 4 by sebific duct, the second main pump output oil port B11 of pump group 1 connects the second oil inlet P 41 of positive flow multi-way valve 4 by sebific duct, the pioneer pump output oil port C11 of pump group 1 connects the oil inlet P 21 of the lever operated valve 2 of elevator and the oil inlet P 31 of the lever operated valve 3 of unit head, the first hydraulic fluid port A31 of the lever operated valve 3 of unit head connects the first guide oil entrance b41 and the second guide oil entrance b42 of positive flow multi-way valve 4, the second hydraulic fluid port B31 of the lever operated valve 3 of unit head connects the 3rd guide oil entrance a41 and the 4th guide oil entrance a42 of positive flow multi-way valve 4, the first hydraulic fluid port A41 of positive flow multi-way valve 4 and the second hydraulic fluid port A42 are by the first hydraulic fluid port A51 of sebific duct and tee union connecting fluid pressure motor 5 and the first hydraulic fluid port A61 of multi-functional Fill valve 6, the 3rd hydraulic fluid port B41 of positive flow multi-way valve 4 and the 4th hydraulic fluid port B42 are by the second hydraulic fluid port B51 of sebific duct and tee union connecting fluid pressure motor 5 and the second hydraulic fluid port B61 of multi-functional Fill valve 6, the 3rd hydraulic fluid port S of multi-functional Fill valve 6 connects fuel tank T.Described multi-functional Fill valve 6 comprises the first spool 61, the second spool 62, the 3rd spool 63 and the 4th spool 64, the first spool 61 and the second spool 62 are all connected the first hydraulic fluid port A61 and the second hydraulic fluid port B61 of multi-functional Fill valve 6, the first spool 61 connects the 3rd hydraulic fluid port S of multi-functional Fill valve 6, and the second spool 62, the 3rd spool 63 are connected successively with the 4th spool 64.
During use, an operational power lever operated valve 3, the second hydraulic fluid port B31 operation power head forward of the lever operated valve 3 of unit head, an operational power lever operated valve 3, the second hydraulic fluid port A31 operation power head reversion of the lever operated valve 3 of unit head.Hydraulic fluid port A21 setting pressure sensor M in the lever operated valve 2 of elevator, is used for detecting the enhancing action of the lever operated valve 2 of elevator, the lifting signal that pressure transducer M detects, and power supply is given the 3rd spool F63 power supply in multi-functional Fill valve 6.The pressure setting of the second spool F62 in multi-functional Fill valve 6 is system pressure 320bar, and the 4th spool F64 setting pressure is 260bar, and the 3rd spool F63 is idle time, and the Maximum operating pressure of system is 320bar, maximum output torque of power head; In the time of the 3rd spool F63 work, because the setting pressure 260bar of the 4th spool F64 is less than the setting pressure 320bar of the second spool F62, when working pressure reaches 260bar, the 4th spool F64 work, assurance system maximum pressure is 260bar, and unit head is exported another moment of torsion, according to the discharge capacity of the second spool F62, the 3rd spool F63, the 4th spool F64 rule of successively decreasing, can there is multiple systems maximum pressure, thereby occur multiple unit head output torque.In the time of the first spool F61 work, the first hydraulic fluid port A51 or the second hydraulic fluid port B51 repairing from fuel tank T to oil hydraulic motor, prevent that motor from occurring inhaling empty.
The utility model adopts double pump work, positive flow or minus flow to control multi-way valve as complete machine main hydraulic system, this system maximum service pressure is 320bar, known according to the output torque formula of oil hydraulic motor (output torque=effective working pressure * oil hydraulic motor discharge capacity/2 π), output torque and the system pressure of oil hydraulic motor are directly proportional, when realizing the multistage moment of torsion of unit head by regulating system pressure, do not affect other and move the job requirement of required maximum service pressure 320bar.
Claims (4)
1. many torque hydraulics of rotary digging drill power head system, it is characterized in that, comprise pump group (1), the first main pump output oil port (A11) of pump group (1) connects first filler opening (P40) of positive flow or minus flow multi-way valve, the second main pump output oil port (B11) of pump group (1) connects second filler opening (P41) of positive flow or minus flow multi-way valve, the pioneer pump output oil port (C11) of pump group (1) connects the filler opening (P21) of the lever operated valve of elevator (2) and the filler opening (P31) of the lever operated valve of unit head (3), first hydraulic fluid port (A31) of the lever operated valve of unit head (3) connects the first guide oil entrance (b41) and the second guide oil entrance (b42) of positive flow or minus flow multi-way valve, second hydraulic fluid port (B31) of the lever operated valve of unit head (3) connects the 3rd guide oil entrance (a41) and the 4th guide oil entrance (a42) of positive flow or minus flow multi-way valve, first hydraulic fluid port (A61) of first hydraulic fluid port (A41) of positive flow or minus flow multi-way valve and first hydraulic fluid port (A51) of the second hydraulic fluid port (A42) connecting fluid pressure motor (5) and multi-functional Fill valve (6), the 3rd hydraulic fluid port (B41) of positive flow or minus flow multi-way valve and second hydraulic fluid port (B51) of the 4th hydraulic fluid port (B42) connecting fluid pressure motor (5) and second hydraulic fluid port (B61) of multi-functional Fill valve (6), the 3rd hydraulic fluid port (S) of multi-functional Fill valve (6) connects fuel tank (T).
2. many torque hydraulics of rotary digging drill power head system as claimed in claim 1, it is characterized in that, described multi-functional Fill valve (6) comprises the first spool (61), the second spool (62), the 3rd spool (63) and the 4th spool (64), the first spool (61) and the second spool (62) are all connected the first hydraulic fluid port (A61) and second hydraulic fluid port (B61) of multi-functional Fill valve (6), the first spool (61) connects the 3rd hydraulic fluid port (S) of multi-functional Fill valve (6), and the second spool (62), the 3rd spool (63) and the 4th spool (64) are connected successively.
3. many torque hydraulics of rotary digging drill power head system as claimed in claim 1, it is characterized in that, described pump group (1) comprises motor and the two main pumps and the pioneer pump that are connected with motor, two main pumps have respectively the first main pump output oil port (A11) and the second main pump output oil port (B11), and pioneer pump has pioneer pump output oil port (C11).
4. many torque hydraulics of rotary digging drill power head system as claimed in claim 1, is characterized in that, the hydraulic fluid port (A21) of the lever operated valve of described elevator (2) is provided with pressure switch or pressure transducer (M).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034119.6U CN203743101U (en) | 2014-01-20 | 2014-01-20 | Multi-torque hydraulic system of power head of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034119.6U CN203743101U (en) | 2014-01-20 | 2014-01-20 | Multi-torque hydraulic system of power head of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743101U true CN203743101U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420034119.6U Expired - Fee Related CN203743101U (en) | 2014-01-20 | 2014-01-20 | Multi-torque hydraulic system of power head of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743101U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373399A (en) * | 2014-11-03 | 2015-02-25 | 上海中联重科桩工机械有限公司 | Hydraulic system capable of realizing multi-torque output and rotary drilling rig |
| CN107780917A (en) * | 2016-08-25 | 2018-03-09 | 徐州盾安重工机械制造有限公司 | Full-rotating drill power control system |
| CN113153136A (en) * | 2021-04-06 | 2021-07-23 | 上海中联重科桩工机械有限公司 | Power head pressurizing force control method and system and rotary drilling rig |
-
2014
- 2014-01-20 CN CN201420034119.6U patent/CN203743101U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373399A (en) * | 2014-11-03 | 2015-02-25 | 上海中联重科桩工机械有限公司 | Hydraulic system capable of realizing multi-torque output and rotary drilling rig |
| CN104373399B (en) * | 2014-11-03 | 2017-03-15 | 上海中联重科桩工机械有限公司 | Hydraulic system capable of realizing multi-torque output and rotary drilling rig |
| CN107780917A (en) * | 2016-08-25 | 2018-03-09 | 徐州盾安重工机械制造有限公司 | Full-rotating drill power control system |
| CN113153136A (en) * | 2021-04-06 | 2021-07-23 | 上海中联重科桩工机械有限公司 | Power head pressurizing force control method and system and rotary drilling rig |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20170120 |