CN112983910B - Roofbolter hydraulic control system and roofbolter - Google Patents
Roofbolter hydraulic control system and roofbolter Download PDFInfo
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- CN112983910B CN112983910B CN202110199275.2A CN202110199275A CN112983910B CN 112983910 B CN112983910 B CN 112983910B CN 202110199275 A CN202110199275 A CN 202110199275A CN 112983910 B CN112983910 B CN 112983910B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000005553 drilling Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 266
- 239000010720 hydraulic oil Substances 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Fluid Mechanics (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a hydraulic control system of a jumbolter and the jumbolter, wherein the hydraulic control system comprises: the automatic drill pipe oil-gas separator comprises an oil source, a hydraulic motor, a drill pipe propulsion oil cylinder, a first rotary oil way, a second rotary oil way, a first telescopic oil way, a second telescopic oil way and an automatic control valve; the automatic control valve is used for generating a pressure feedback signal after the drill rod drills to a specified depth; the oil inlet of the automatic control valve is communicated with the oil inlet of the hydraulic motor, the oil outlet of the automatic control valve is communicated with the hydraulic control oil port of the second hydraulic control valve, and the oil inlet of the second hydraulic control valve is communicated with the hydraulic control oil port of the first hydraulic control valve. The scheme can ensure that the hydraulic motor works stably, and can automatically fall down to restore to the bottommost initial position after the drill rod rotates in place, thereby effectively solving the problems of high labor intensity, low automation level and the like of the manual control of the hydraulic control system of the conventional jumbolter.
Description
Technical Field
The invention relates to the technical field of hydraulic control of jumbolters, in particular to a hydraulic control system of a jumbolter and a jumbolter.
Background
The jumbolter is the equipment commonly used for coal mining, adopts hydraulic drive usually, and the drilling rod has two functions of rotation and propulsion at least, however the unstable problem of pressure often appears in present jumbolter hydraulic system to lead to the drilling rod to appear the phenomenon of card pause in the work, the jumbolter often damages, and the maintenance frequency is high.
In addition, the drill rod needs to be withdrawn after the drill rod drills to a specified depth, in the prior art, the drill rod is usually withdrawn from a drill hole by adopting a manual control reversing valve, the mode needs to manually pay attention to the drilling depth of the drill rod for a long time, and the actual drilling depth of the drill rod is not convenient to control.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an embodiment of the present invention proposes a hydraulic control system of a jumbolter, including:
an oil source for providing a liquid medium at a predetermined pressure and a predetermined flow rate;
the hydraulic motor is used for driving the drill rod to rotate;
the drill rod propelling oil cylinder is used for driving the drill rod to stretch and retract;
one end of the first rotating oil path is communicated with the oil source, the other end of the first rotating oil path is communicated with the hydraulic motor, a first hydraulic control valve is arranged on the first rotating oil path, and a hydraulic control oil port of the first hydraulic control valve is communicated with an oil inlet of the oil source;
one end of the second rotating oil way is communicated with the oil source, and the other end of the second rotating oil way is communicated with the hydraulic motor; one of the first rotary oil path and the second rotary oil path is used as an oil inlet path of the hydraulic motor, and the other one is used as an oil return path of the hydraulic motor; the first rotary oil path and the second rotary oil path are reversed by a first reversing valve;
one end of the first telescopic oil path is communicated with the oil source, and the other end of the first telescopic oil path is communicated with the drill rod propulsion oil cylinder;
one end of the second telescopic oil path is communicated with the oil source, and the other end of the second telescopic oil path is communicated with the drill rod propulsion oil cylinder; one of the first telescopic oil path and the second telescopic oil path is used as an oil inlet path of the drill rod propulsion oil cylinder, and the other one of the first telescopic oil path and the second telescopic oil path is used as an oil return path of the drill rod propulsion oil cylinder;
and the automatic control valve is used for generating a pressure feedback signal after the drill rod drills to a specified depth, an oil inlet of the automatic control valve is communicated with an oil inlet of the hydraulic motor, an oil outlet of the automatic control valve is communicated with a hydraulic control oil port of the second hydraulic control valve, and an oil inlet of the second hydraulic control valve is communicated with a hydraulic control oil port of the first hydraulic control valve.
According to the hydraulic control system of the jumbolter, a second reversing valve and a first one-way valve are arranged between the hydraulic control oil port of the first hydraulic control valve and the oil inlet of the oil source;
and a first throttling hole is formed in a pipeline communicated with a hydraulic control oil port of the first hydraulic control valve.
The technical scheme of the embodiment of the invention not only can ensure that the hydraulic motor works stably, but also can automatically stop working after the drill rod rotates in place, and effectively solves the problems of high labor intensity, low automation level and the like of the manual control of the hydraulic control system of the conventional jumbolter.
According to the hydraulic control system of the anchor rod drilling machine, a second throttling hole is formed in a pipeline between the first hydraulic control valve and the hydraulic motor, the second throttling hole is communicated with an oil inlet of a third hydraulic control valve, an oil outlet of the third hydraulic control valve is communicated with a second one-way valve, and an oil outlet of the second one-way valve and a hydraulic control oil port of the third hydraulic control valve are communicated with an oil outlet of the second reversing valve.
According to the hydraulic control system of the jumbolter, a first hydraulic control reversing valve is arranged on the first telescopic oil path, and two oil ports of the first hydraulic control reversing valve are respectively communicated with an oil inlet and an oil return port of the oil source; a third oil port of the first hydraulic control reversing valve is communicated with the drill rod propelling oil cylinder;
a hydraulic control oil port of the first hydraulic control reversing valve is communicated with a fourth hydraulic control valve, the fourth hydraulic control valve is communicated with a third reversing valve, and the third reversing valve is communicated with an oil inlet and an oil drainage port of the oil source; and a hydraulic control oil port of the fourth hydraulic control valve is communicated with an oil outlet of the second reversing valve.
According to the hydraulic control system of the jumbolter, a second hydraulic control reversing valve is arranged on the second telescopic oil path, and two oil ports of the second hydraulic control reversing valve are respectively communicated with an oil inlet and an oil return port of the oil source; a third oil port of the second hydraulic control reversing valve is communicated with the drill rod propulsion oil cylinder; and a hydraulic control oil port of the second hydraulic control reversing valve is communicated with an oil outlet of the automatic control valve.
According to the hydraulic control system of the jumbolter, a shuttle valve is arranged on a pipeline between an oil outlet of the automatic control valve and the second hydraulic control valve;
an oil inlet of the oil source is communicated with a fourth reversing valve, and the fourth reversing valve is communicated with one oil inlet of the shuttle valve.
According to the hydraulic control system of the anchor rod drilling machine, the hydraulic control system of the anchor rod drilling machine further comprises a hydraulic control water valve, a water outlet of the hydraulic control water valve is communicated with the hollow water cavity of the drill rod, a hydraulic control oil port of the hydraulic control water valve is communicated with a fifth reversing valve, and an oil inlet of the fifth reversing valve is communicated with an oil outlet of the second reversing valve.
According to the hydraulic control system of the jumbolter according to the embodiment of the present invention, the hydraulic control system of the jumbolter further includes:
one end of the third telescopic oil way is communicated with the oil source, and the other end of the third telescopic oil way is communicated with the drill rod propulsion oil cylinder;
one end of the fourth telescopic oil way is communicated with the oil source, and the other end of the fourth telescopic oil way is communicated with the drill rod propulsion oil cylinder; one of the third telescopic oil path and the fourth telescopic oil path is used as an oil inlet path of the drill rod propulsion oil cylinder, and the other one is used as an oil return path of the drill rod propulsion oil cylinder;
and the third telescopic oil path and the fourth telescopic oil path are reversed by a sixth reversing valve.
According to the hydraulic control system of the jumbolter according to the embodiment of the present invention, the hydraulic control system of the jumbolter further includes:
the support column oil cylinder is communicated with an oil inlet and an oil return port of the oil source through a seventh reversing valve;
the front-back swing oil cylinder is communicated with an oil inlet and an oil return port of the oil source through an eighth reversing valve;
the left-right swinging oil cylinder is communicated with an oil inlet and an oil return port of the oil source through a ninth reversing valve;
the side-shifting swing oil cylinder is communicated with an oil inlet and an oil return port of the oil source through a tenth reversing valve;
and the clamping oil cylinder is communicated with the oil inlet and the oil return port of the oil source through an eleventh reversing valve.
In another aspect, the invention provides a jumbolter, which adopts the hydraulic control system of the jumbolter.
The anchor rod drilling machine is stable in operation and high in automation degree.
Drawings
FIG. 1 is a hydraulic system diagram of a hydraulic control system for a rock drill rig in accordance with an embodiment of the present invention;
FIG. 2 is a partial view of FIG. 1;
fig. 3 is a partial view of fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 and 2, the present embodiment provides a hydraulic control system of a roof bolter including: the automatic drill rod oil-gas separation device comprises an oil source 1, a hydraulic motor 2, a drill rod thrust oil cylinder 3, a first rotary oil path, a second rotary oil path, a first telescopic oil path, a second telescopic oil path and an automatic control valve 1.11; the oil source 1 is used for providing liquid medium with preset pressure and preset flow, specific values of the preset pressure and the preset flow are determined according to design requirements, the hydraulic motor 2 is used for driving the drill rod to rotate, the drill rod propelling cylinder 3 is used for driving the drill rod to stretch and contract, and the automatic control valve 1.11 is used for generating a pressure feedback signal after the drill rod drills to a specified depth. The pressure feedback signal here means that the automatic control valve 1.11 is switched from the cut-off state to the connected state, so that hydraulic oil of a certain pressure is generated in the oil passage to which the automatic control valve 1.11 is connected.
One end of the first rotary oil path is communicated with the oil source 1, the other end of the first rotary oil path is communicated with the hydraulic motor 2, a first hydraulic control valve 1.5 is arranged on the first rotary oil path, and a hydraulic control oil port of the first hydraulic control valve 1.5 is communicated with an oil inlet of the oil source 1; one end of the second rotating oil way is communicated with the oil source 1, and the other end of the second rotating oil way is communicated with the hydraulic motor; one of the first rotary oil passage and the second rotary oil passage serves as an oil inlet passage of the hydraulic motor 2, and the other serves as an oil return passage of the hydraulic motor 2; the first rotary oil path and the second rotary oil path are reversed by a first reversing valve 2.1.
One end of the first telescopic oil way is communicated with an oil source 1, and the other end of the first telescopic oil way is communicated with a drill rod propulsion oil cylinder 3; one end of the second telescopic oil way is communicated with the oil source 1, and the other end of the second telescopic oil way is communicated with the drill rod propulsion oil cylinder 3; one of the first telescopic oil path and the second telescopic oil path is used as an oil inlet path of the drill rod propelling oil cylinder 3, and the other one is used as an oil return path of the drill rod propelling oil cylinder 3.
An oil inlet of the automatic control valve 1.11 is communicated with an oil inlet of the hydraulic motor, an oil outlet of the automatic control valve 1.11 is communicated with a hydraulic control oil port of the second hydraulic control valve 1.6, and an oil inlet of the second hydraulic control valve 1.6 is communicated with a hydraulic control oil port of the first hydraulic control valve 1.5.
According to the scheme, the automatic control valve 1.11, the second hydraulic control valve 1.6 and the first hydraulic control valve 1.5 are arranged, hydraulic oil supplied by an oil inlet of the oil source 1 in the rotation process of the hydraulic motor 2 enables the first hydraulic control valve 1.5 to be stably kept at the opening position, the automatic control valve 1.11 feeds back a pressure signal to the second hydraulic control valve 1.6 after a drill rod rotates to the right position, the second hydraulic control valve 1.6 is switched to the opening position from the disconnecting position, the hydraulic oil pressure of the oil inlet of the first hydraulic control valve 1.5 is reduced, the first hydraulic control valve 1.5 is switched to the disconnecting position from the opening position, and the oil circuit is automatically cut off. Therefore, the technical scheme of the embodiment can ensure that the hydraulic motor 2 can work stably, and can also stop working automatically after the drill rod rotates in place, thereby effectively solving the problems of high labor intensity, low automation level and the like of the manual control of the hydraulic control system of the conventional jumbolter.
In a specific embodiment, a second reversing valve 1.1 and a first one-way valve 1.3 are arranged between a hydraulic control oil port of the first hydraulic control valve 1.5 and an oil inlet of the oil source 1; a first throttle hole 1.4 is arranged on a pipeline of a hydraulic control oil port communicated with the first hydraulic control valve 1.5. The second reversing valve 1.1 controls the input and the cut-off of the hydraulic oil output from the oil inlet of the oil source 1, the first one-way valve 1.3 is used for preventing the hydraulic oil from flowing reversely, and the second reversing valve 1.1 can adopt a manual reversing valve.
Further, a speed regulating valve 1.2 is arranged between the first hydraulic control valve 1.5 and an oil inlet of the oil source 1, and a pressure reducing valve 2.2 is arranged on a pipeline connected with the oil inlet of the first reversing valve 2.1.
In a specific embodiment, a second throttle hole 1.8 is arranged on a pipeline between the first hydraulic control valve 1.5 and the hydraulic motor 2, the second throttle hole 1.8 is communicated with an oil inlet of a third hydraulic control valve 1.9, an oil outlet of the third hydraulic control valve 1.9 is communicated with a second check valve 1.7, and an oil outlet of the second check valve 1.7 and a hydraulic control oil port of the third hydraulic control valve 1.9 are communicated with an oil outlet of a second reversing valve 1.1. When the pressure of the hydraulic oil conveyed by the oil source 1 is larger after passing through the second reversing valve 1.1, the third hydraulic control valve 1.9 is switched to the open state from the closed state, so that the hydraulic oil in the oil inlet pipeline of the hydraulic motor 2 enters the third hydraulic control valve 1.9 through the second throttling hole 1.8, further passes through the second one-way valve 1.7 and returns to the oil tank through the first throttling hole 1.4, the pressure of the hydraulic oil in the oil inlet pipeline of the hydraulic motor 2 is reduced, and the stability of the oil circuit pressure is ensured.
In the embodiment, a first hydraulic control reversing valve 4.4 is arranged on the first telescopic oil way, and two oil ports of the first hydraulic control reversing valve 4.4 are respectively communicated with an oil inlet and an oil return port of the oil source 1; a third oil port of the first hydraulic control reversing valve 4.4 is communicated with the drill rod pushing oil cylinder 3; a hydraulic control oil port of the first hydraulic control reversing valve 4.4 is communicated with a fourth hydraulic control valve 4.3, the fourth hydraulic control valve 4.3 is communicated with a third reversing valve 4.1, and the third reversing valve 4.1 is communicated with an oil inlet and an oil drainage port of an oil source 1; and a hydraulic control oil port of the fourth hydraulic control valve 4.3 is communicated with an oil outlet of the second reversing valve 1.1. The hydraulic oil delivered by the oil inlet of the oil source 1 passes through the third reversing valve 4.1, the third one-way valve 4.2 and the fourth hydraulic control valve 4.3 to the hydraulic control oil port of the first hydraulic control reversing valve 4.4, so that the first hydraulic control reversing valve 4.4 is stably kept at the communicating position.
Further, a second hydraulic control reversing valve 4.14 is arranged on the second telescopic oil path, and two oil ports of the second hydraulic control reversing valve 4.14 are respectively communicated with an oil inlet and an oil return port of the oil source 1; a third oil port of the second hydraulic control reversing valve 4.14 is communicated with the drill rod pushing oil cylinder 3; and a hydraulic control oil port of the second hydraulic control reversing valve 4.14 is communicated with an oil outlet of the automatic control valve 1.11. Hydraulic oil conveyed by the oil outlet of the automatic control valve 1.11 is delivered to a hydraulic control oil port of the second hydraulic control reversing valve 4.14, so that the second hydraulic control reversing valve 4.14 is reversed. Therefore, when the automatic control valve 1.11 generates a pressure signal, the working positions of the first hydraulic control valve 1.5, the first hydraulic control reversing valve 4.4 and the second hydraulic control reversing valve 4.14 can be switched simultaneously, the hydraulic motor 2 stops working after the first hydraulic control valve 1.5 is switched, and the flow directions of hydraulic oil in the first telescopic oil path and the second telescopic oil path are changed simultaneously after the first hydraulic control reversing valve 4.4 and the second hydraulic control reversing valve 4.14 are switched, so that the drill rod propelling oil cylinder 3 contracts reversely, the drill rod is automatically withdrawn from a drill hole, and the drill rod falls to the bottommost initial position.
In a specific embodiment, a shuttle valve 1.10 is arranged on a pipeline between an oil outlet of the automatic control valve 1.11 and the second hydraulic control valve 1.6; an oil inlet of the oil source 1 is communicated with a fourth reversing valve 3.1, and the fourth reversing valve 3.1 is communicated with an oil inlet of the shuttle valve 1.10. By arranging the fourth reversing valve 3.1, the opening position of the shuttle valve 1.10 can be controlled, and the operations of automatic rotation, automatic feeding stop action and the like of the hydraulic motor 2 can be realized.
Further, the hydraulic control system of the anchor rod drilling machine further comprises a hydraulic control water valve 13, a water outlet of the hydraulic control water valve 13 is communicated with the hollow water cavity of the drill rod, a hydraulic control oil port of the hydraulic control water valve 13 is communicated with the fifth reversing valve 11.1, and an oil inlet of the fifth reversing valve 11.1 is communicated with an oil outlet of the second reversing valve 1.1. Therefore, when the drill rod propulsion oil cylinder 3 extends out, the hydraulic control water valve 13 automatically conveys cleaning water to the hollow water cavity of the drill rod, and when the drill rod propulsion oil cylinder 3 contracts, the hydraulic control water valve 13 can also convey the cleaning water to the hollow water cavity of the drill rod.
In this embodiment, the jumbolter hydraulic control system further includes: a third telescopic oil way, a fourth telescopic oil way and a sixth reversing valve 5.1, wherein one end of the third telescopic oil way is communicated with the oil source 1, and the other end of the third telescopic oil way is communicated with the drill rod propulsion oil cylinder 3; one end of the fourth telescopic oil way is communicated with the oil source 1, and the other end of the fourth telescopic oil way is communicated with the drill rod propulsion oil cylinder 3; one of the third telescopic oil path and the fourth telescopic oil path is used as an oil inlet path of the drill rod propulsion oil cylinder 3, and the other one is used as an oil return path of the drill rod propulsion oil cylinder 3; and the third telescopic oil way and the fourth telescopic oil way are reversed by a sixth reversing valve 5.1. The third telescopic oil path and the fourth telescopic oil path can manually control the extension and the contraction of the drill rod propulsion oil cylinder 3.
Referring to fig. 1 and 3, the jumbolter hydraulic control system further includes: a supporting column oil cylinder 15, a front-back swing oil cylinder 16, a left-right swing oil cylinder 17, a side-shift swing oil cylinder 18 and a clamping rod oil cylinder 19. The support column oil cylinder 15 is communicated with an oil inlet and an oil return port of the oil source 1 through a seventh reversing valve 6.1 and is used for realizing top connection or side wall connection of the drilling machine; the front-back swing oil cylinder 16 is communicated with an oil inlet and an oil return port of the oil source 1 through an eighth reversing valve 7.1 and is used for realizing the hole finding fine adjustment in the front-back direction of the drilling machine; the left-right swing oil cylinder 17 is communicated with an oil inlet and an oil return port of the oil source 1 through a ninth reversing valve 8.1 and is used for realizing the hole finding fine adjustment in the left-right direction of the drilling machine; the side-shifting swing oil cylinder 18 is communicated with an oil inlet and an oil return port of the oil source 1 through a tenth reversing valve 9.1 and is used for realizing the hole finding adjustment of the row spacing of the drilling machine; and the clamping oil cylinder 19 is communicated with an oil inlet and an oil return port of the oil source 1 through an eleventh reversing valve 10.1 and is used for realizing the guard bar adjustment of the drilling machine.
The present embodiment further provides a jumbolter employing the jumbolter hydraulic control system of the present embodiment.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A jumbolter hydraulic control system, comprising:
an oil source (1) for providing a liquid medium at a predetermined pressure and a predetermined flow rate;
the hydraulic motor (2) is used for driving the drill rod to rotate;
the drill rod propelling oil cylinder (3) is used for driving the drill rod to stretch and retract;
one end of the first rotating oil way is communicated with the oil source (1), one end of the first rotating oil way is communicated with the hydraulic motor (2), a first hydraulic control valve (1.5) is arranged on the first rotating oil way, and a hydraulic control oil port of the first hydraulic control valve (1.5) is communicated with an oil inlet of the oil source (1);
one end of the second rotating oil path is communicated with the oil source (1), and the other end of the second rotating oil path is communicated with the hydraulic motor (2); one of the first rotary oil path and the second rotary oil path is used as an oil inlet path of the hydraulic motor (2), and the other one is used as an oil return path of the hydraulic motor (2); the first rotary oil path and the second rotary oil path are reversed by a first reversing valve (2.1);
one end of the first telescopic oil way is communicated with the oil source (1), and the other end of the first telescopic oil way is communicated with the drill rod propulsion oil cylinder (3);
one end of the second telescopic oil way is communicated with the oil source (1), and the other end of the second telescopic oil way is communicated with the drill rod propulsion oil cylinder (3); one of the first telescopic oil path and the second telescopic oil path is used as an oil inlet path of the drill rod propulsion oil cylinder (3), and the other one is used as an oil return path of the drill rod propulsion oil cylinder (3);
the automatic control valve (1.11) is used for generating a pressure feedback signal after a drill rod drills to a specified depth, an oil inlet of the automatic control valve (1.11) is communicated with an oil inlet of the hydraulic motor, an oil outlet of the automatic control valve (1.11) is communicated with a hydraulic control oil port of a second hydraulic control valve (1.6), and an oil inlet of the second hydraulic control valve (1.6) is communicated with a hydraulic control oil port of the first hydraulic control valve (1.5);
a second reversing valve (1.1) and a first one-way valve (1.3) are arranged between a hydraulic control oil port of the first hydraulic control valve (1.5) and an oil inlet of the oil source (1);
a first throttling hole (1.4) is formed in a pipeline communicated with a hydraulic control oil port of the first hydraulic control valve (1.5);
a second throttling hole (1.8) is formed in a pipeline between the first hydraulic control valve (1.5) and the hydraulic motor (2), the second throttling hole (1.8) is communicated with an oil inlet of a third hydraulic control valve (1.9), an oil outlet of the third hydraulic control valve (1.9) is communicated with a second one-way valve (1.7), and an oil outlet of the second one-way valve (1.7) and a hydraulic control oil port of the third hydraulic control valve (1.9) are communicated with an oil outlet of the second reversing valve (1.1);
a first hydraulic control reversing valve (4.4) is arranged on the first telescopic oil way, and two oil ports of the first hydraulic control reversing valve (4.4) are respectively communicated with an oil inlet and an oil return port of the oil source (1); a third oil port of the first hydraulic control reversing valve (4.4) is communicated with the drill rod pushing oil cylinder (3);
a hydraulic control oil port of the first hydraulic control reversing valve (4.4) is communicated with a fourth hydraulic control valve (4.3), the fourth hydraulic control valve (4.3) is communicated with a third reversing valve (4.1), and the third reversing valve (4.1) is communicated with an oil inlet and an oil drainage port of the oil source (1); and a hydraulic control oil port of the fourth hydraulic control valve (4.3) is communicated with an oil outlet of the second reversing valve (1.1).
2. The hydraulic control system of the jumbolter according to claim 1, wherein a second hydraulic control directional control valve (4.14) is arranged on the second telescopic oil path, and two oil ports of the second hydraulic control directional control valve (4.14) are respectively communicated with an oil inlet and an oil return port of the oil source (1); a third oil port of the second hydraulic control reversing valve (4.14) is communicated with the drill rod pushing oil cylinder (3); and a hydraulic control oil port of the second hydraulic control reversing valve (4.14) is communicated with an oil outlet of the automatic control valve (1.11).
3. The jumbolter hydraulic control system according to claim 2, wherein a shuttle valve (1.10) is provided on a pipeline between an oil outlet of the automatic control valve (1.11) and the second hydraulic control valve (1.6);
an oil inlet of the oil source (1) is communicated with a fourth reversing valve (3.1), and the fourth reversing valve (3.1) is communicated with an oil inlet of the shuttle valve (1.10).
4. The hydraulic control system of the jumbolter according to claim 3, further comprising a hydraulic control water valve (13), wherein a water outlet of the hydraulic control water valve (13) is communicated with the hollow water cavity of the drill rod, a hydraulic control oil port of the hydraulic control water valve (13) is communicated with a fifth reversing valve (11.1), and an oil inlet of the fifth reversing valve (11.1) is communicated with an oil outlet of the second reversing valve (1.1).
5. The jumbolter hydraulic control system of claim 1, further comprising:
one end of the third telescopic oil way is communicated with the oil source (1), and the other end of the third telescopic oil way is communicated with the drill rod propulsion oil cylinder (3);
one end of the fourth telescopic oil way is communicated with the oil source (1), and the other end of the fourth telescopic oil way is communicated with the drill rod propulsion oil cylinder (3); one of the third telescopic oil path and the fourth telescopic oil path is used as an oil inlet path of the drill rod propulsion oil cylinder (3), and the other one is used as an oil return path of the drill rod propulsion oil cylinder (3);
and the third telescopic oil path and the fourth telescopic oil path are reversed by a sixth reversing valve (5.1).
6. The jumbolter hydraulic control system of claim 1, further comprising:
the support column oil cylinder (15), the support column oil cylinder (15) is communicated with an oil inlet and an oil return port of the oil source (1) through a seventh reversing valve (6.1);
the front-back swing oil cylinder (16), the front-back swing oil cylinder (16) is communicated with an oil inlet and an oil return port of the oil source (1) through an eighth reversing valve (7.1);
the left-right swinging oil cylinder (17), the left-right swinging oil cylinder (17) is communicated with an oil inlet and an oil return port of the oil source (1) through a ninth reversing valve (8.1);
the side-shifting swing oil cylinder (18), the side-shifting swing oil cylinder (18) is communicated with an oil inlet and an oil return port of the oil source (1) through a tenth reversing valve (9.1);
and the clamping oil cylinder (19) is communicated with an oil inlet and an oil return port of the oil source (1) through an eleventh reversing valve (10.1).
7. An anchor drilling machine, characterized in that an anchor drilling machine hydraulic control system according to any one of claims 1-6 is used.
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| CN113494498A (en) * | 2021-08-03 | 2021-10-12 | 中国铁建重工集团股份有限公司 | Drilling control system of anchor rod machine and airborne anchor rod machine |
| CN113790063B (en) * | 2021-08-27 | 2023-08-04 | 中国煤炭科工集团太原研究院有限公司 | Positioning test stand |
| CN115786610A (en) * | 2022-12-01 | 2023-03-14 | 北京首钢股份有限公司 | Tapping machine and control method |
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