CN110905874A - Drill boom control hydraulic system - Google Patents
Drill boom control hydraulic system Download PDFInfo
- Publication number
- CN110905874A CN110905874A CN201911227549.3A CN201911227549A CN110905874A CN 110905874 A CN110905874 A CN 110905874A CN 201911227549 A CN201911227549 A CN 201911227549A CN 110905874 A CN110905874 A CN 110905874A
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- oil
- port
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- valve
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- 239000011435 rock Substances 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 abstract description 128
- 239000010720 hydraulic oil Substances 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill boom hydraulic system, which comprises an oil tank (10), an oil pump (9), a drill boom pressure control valve (1), a proportional multi-way valve (12) and a drill boom oil cylinder (13) which are sequentially connected in series, wherein a pressure control port (LSA) of the proportional multi-way valve (12) is connected with a pressure sensor (11) in series; a valve body of the drill boom pressure control valve (1) is provided with a pressure oil port (P), an oil return port (T), a control oil port (X), a detection oil port (G), an oil inlet (K) and a working oil port (A, B, C); the pressure oil port (P) is communicated with an outlet of the oil pump (9); the oil return port (T) is communicated with the oil tank (10); the working oil port (A, B, C) is respectively communicated with a pressure oil port (P2) of the proportional multi-way valve (12), the supporting leg system and a buffer oil port of the rock drill; the oil inlet (K) is communicated with the cable winding system; the control oil port (X) is communicated with the control oil port (X) of the oil pump. The invention simplifies the hydraulic system, reduces the leakage of hydraulic oil and improves the reliability of the system.
Description
Technical Field
The invention belongs to the technical field of hydraulic systems of drill booms of underground rock drilling rigs, and particularly relates to an automatic positioning hydraulic system for controlling a drill boom.
Background
The drill boom of the underground rock drilling rig is controlled to complete the positioning operation of the rock drilling boom through the interaction of a manual operation valve, a logic valve, a hydraulic control multi-way valve and the like. All control is achieved by manually operated valves and pilot operated valves. The disadvantages of such a system are: the system is complex, the pipelines are various, the failure is frequent, the reason is not easy to find, and the leakage is easy.
Disclosure of Invention
In order to make up for the defects, the invention provides a drill boom hydraulic system, which is used for improving the reliability of the drill boom hydraulic system, simplifying hydraulic pipelines and reducing hydraulic oil leakage.
The invention is realized by the following technical scheme.
The utility model provides a drill boom hydraulic system, includes oil tank (10), oil pump (9), drill boom pressure control valve (1), proportion multiple unit valve (12) and drill boom hydro-cylinder (13) of series connection in proper order, its characterized in that: a pressure control port (LSA) of the proportional multi-way valve (12) is connected with a pressure sensor (11) in series; a valve body of the drill boom pressure control valve (1) is provided with a pressure oil port (P), an oil return port (T), a control oil port (X), a detection oil port (G), an oil inlet (K) and a working oil port (A, B, C); the pressure oil port (P) is communicated with an outlet of the oil pump (9); the oil return port (T) is communicated with the oil tank (10); the working oil port (A, B, C) is respectively communicated with a pressure oil port (P2) of the proportional multi-way valve (12), the supporting leg system and a buffer oil port of the rock drill; the oil inlet (K) is communicated with the cable winding system; the control oil port (X) is communicated with the control oil port (X) of the oil pump.
As a further improvement of the invention, a proportional overflow valve (2), an orifice (3), a pressure sensor (4), a first check valve (5), a second check valve (6), a third check valve (7) and an adjustable throttle valve (8) are arranged in the drill boom pressure control valve (1); the throttle hole (3) and the proportional overflow valve (2) are connected in series, and the throttle hole (3) and the pressure sensor (4) are connected in parallel; the throttle valve (8) and the third one-way valve (7) are connected in parallel; the second one-way valve and the third one-way valve (6, 7) are connected in parallel and then connected in series with the first one-way valve (5).
As a further improvement of the invention, a pressure oil port (P) of the drill boom pressure control valve (1) is communicated with a pressure oil port (P) of a pump (9) through a bolt; an oil return port (T) of the drill boom control valve (1) is communicated with an oil tank (10) through a high-pressure oil pipe; and a working oil port (A) of the drill boom pressure control valve (1), a pressure oil port (P1) of the proportional multi-way valve (12), a working oil port (A, B) of the multi-way valve (12), an oil port of the drill boom oil cylinder (13), an oil return port (T2) of the multi-way valve (12), an oil suction port (S) of the pump, an oil drainage port (D1) and an oil tank (10) are communicated through high-pressure oil pipes.
The hydraulic system has the beneficial technical effects of simplifying the hydraulic system and reducing the leakage of hydraulic oil. The reliability of the system is improved.
Drawings
Fig. 1 is a schematic diagram of the oil circuit control of the present invention.
Supplementary explanation is made with reference to the attached drawings:
1-a drill boom pressure control valve, 2-a proportional overflow valve, 3-a throttling hole, 4-a pressure sensor, 5-a first check valve, 6-a second check valve, 7-a third check valve and 8-an adjustable throttle valve; a P-pressure oil port, a T-oil return port X-control oil port, an A, B, C-working oil port, a K-oil inlet and a G-detection oil port;
9-an oil pump, an S-oil suction port, a D1-oil leakage port and an X-control oil port;
10-a fuel tank; 11-a pressure sensor;
12-a multi-way valve, P1-a pressure oil port, A, B-a working oil port and T2-an oil return port;
13-drill boom cylinder.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Further elaboration is provided in connection with the appended drawings. A drill boom hydraulic system: the device comprises an oil tank 10, an oil pump 9, a drill boom pressure control valve 1, a proportional multi-way valve 12 and a drill boom oil cylinder 13 which are sequentially connected in series; a pressure control port LSA of the proportional multi-way valve 12 is connected with the pressure sensor 11 in series; a pressure oil port P, an oil return port T, a control oil port X, a detection oil port G, an oil inlet K and a working oil port A, B, C are arranged on a valve body of the drill boom pressure control valve 1; the pressure oil port P is communicated with an outlet of the pump 9; the oil return port T is communicated with an oil tank; the working oil port A, B, C is respectively communicated with a pressure oil port P2 of the proportional multi-way valve 12, a supporting leg system and a buffer oil port of the rock drill; the oil inlet K is communicated with the cable winding system; the control oil port X is communicated with the control oil port X of the pump.
A proportional overflow valve 2, a throttling hole 3, a pressure sensor 4, a first check valve 5, a second check valve 6, a third check valve 7 and an adjustable throttle valve 8 are arranged in the drill boom pressure control valve 1; the throttle hole 3 and the proportional overflow valve 2 are connected in series, and the throttle hole 3 and the pressure sensor 4 are connected in parallel; the throttle valve (8) and the third one-way valve (7) are connected in parallel; the second one-way valve and the third one-way valve (6, 7) are connected in parallel and then connected in series with the one-way valve (5).
The pressure oil port P of the drill boom pressure control valve 1 is communicated with the pressure oil port P of the pump 9 through a bolt; the oil return port T of the drill boom pressure control valve 1 is communicated with the oil tank 10 through a high-pressure oil pipe. And the working oil port A of the drill boom pressure control valve 1, the pressure oil port P1 of the proportional multi-way valve 12, the working oil port A, B of the proportional multi-way valve 12, the oil port of the drill boom cylinder 13, the oil return port T2 of the proportional multi-way valve 12, the oil suction port S of the oil pump 9, the oil discharge port D1 and the oil tank 10 are communicated through high-pressure oil pipes.
The working principle of the invention is as follows:
as shown in the figure I, when the pump 9 is started, the pressure of the proportional relief valve 2 is set to be zero; any one of the proportional multi-way valves 12 is reversed, and the proportional overflow valve 2 has a corresponding pressure set value. Pressure oil from the oil pump 9 enters the drill boom pressure control valve 1 through a pressure oil port P of the drill boom pressure control valve 1, and enters the drill boom oil cylinder 12 through a working oil port A of the drill boom pressure control valve 1, a pressure oil port P2 of the proportional multi-way valve 12 and a working oil port A, B in one path to push the drill boom oil cylinder 12 to work.
One path supplies oil to the supporting leg system through a working oil port B of the drill boom pressure control valve 1. The oil can control the action of the support legs under the condition that the power source of the support leg system is closed.
One path of the hydraulic control system is used as a buffer oil source of the rock drill through a working oil port C of a drill boom pressure control valve 1, the flow is regulated by an adjustable throttle valve 8, and the pressure is regulated by a proportional overflow valve 2.
The pressure sensor 4 feeds back the pressure value of the working process in real time.
The orifice 3 stabilizes the flow of pressurized oil entering the pump 9 control port X.
When the oil cylinder of the propelling beam pushes the propelling beam to prop against the rock face, the pressure value fed back by the pressure sensor 11 is increased. The proportional multi-way reversing valve 12 controls the piece of valve of the oil cylinder of the push beam to be reversed to a middle position.
The return oil of the drill boom cylinder 13 returns to the oil tank through the working oil port A, B and the oil return port T2 of the multi-way valve 12.
And finishing the positioning control of the drill boom and starting rock drilling.
When the pump 9 stops, pressure oil from the cable coiling system enters the drill boom oil cylinder 12 through the oil inlet K of the drill boom pressure control valve 1, the check valve 6, the working oil port a, the pressure oil port P2 of the proportional multi-way valve 12 and the working oil port A, B, and pushes the drill boom oil cylinder 12 to work. The function is that when the rock drilling rig travels, the drill boom is adjusted to smoothly pass through a roadway.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. It should be noted that other equivalent modifications can be made by those skilled in the art in light of the teachings of the present invention, and all such modifications can be made as are within the scope of the present invention.
Claims (3)
1. The utility model provides a drill boom hydraulic system, includes oil tank (10), oil pump (9), drill boom pressure control valve (1), proportion multiple unit valve (12) and drill boom hydro-cylinder (13) of series connection in proper order, its characterized in that: a pressure control port (LSA) of the proportional multi-way valve (12) is connected with a pressure sensor (11) in series; a valve body of the drill boom pressure control valve (1) is provided with a pressure oil port, an oil return port, a control oil port, a detection oil port, an oil inlet and a working oil port; the pressure oil port is communicated with an outlet of the oil pump (9); the oil return port is communicated with an oil tank (10); the working oil port is respectively communicated with a pressure oil port of the proportional multi-way valve (12), the supporting leg system and a buffer oil port of the rock drill; the oil inlet is communicated with the cable winding system; the control oil port is communicated with the control oil port of the oil pump.
2. The boom hydraulic system of claim 1, wherein: a proportional overflow valve (2), a throttling hole (3), a pressure sensor (4), a first one-way valve (5), a second one-way valve (6), a third one-way valve (7) and an adjustable throttle valve (8) are arranged in the drill boom pressure control valve (1); the throttle hole (3) and the proportional overflow valve (2) are connected in series, and the throttle hole (3) and the pressure sensor (4) are connected in parallel; the throttle valve (8) and the third one-way valve (7) are connected in parallel; the second one-way valve and the third one-way valve (6, 7) are connected in parallel and then connected in series with the first one-way valve (5).
3. A boom hydraulic system as claimed in claim 1 or 2, characterized in that: a pressure oil port of the drill arm pressure control valve (1) is communicated with a pressure oil port of the oil pump (9) through a bolt; the oil return port of the drill boom control valve (1) is communicated with the oil tank (10) through a high-pressure oil pipe; and a working oil port of the drill boom pressure control valve (1) is communicated with a pressure oil port of the proportional multi-way valve (12), a working oil port of the multi-way valve (12) is communicated with an oil port of a drill boom oil cylinder (13), an oil return port of the multi-way valve (12), an oil suction port and an oil discharge port of the pump are communicated with the oil tank (10) through high-pressure oil pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227549.3A CN110905874A (en) | 2019-12-04 | 2019-12-04 | Drill boom control hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227549.3A CN110905874A (en) | 2019-12-04 | 2019-12-04 | Drill boom control hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110905874A true CN110905874A (en) | 2020-03-24 |
Family
ID=69822209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911227549.3A Pending CN110905874A (en) | 2019-12-04 | 2019-12-04 | Drill boom control hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110905874A (en) |
-
2019
- 2019-12-04 CN CN201911227549.3A patent/CN110905874A/en active Pending
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