CN223434546U

CN223434546U - Bolter drill arm hydraulic system and bolter using the same

Info

Publication number: CN223434546U
Application number: CN202422893020.8U
Authority: CN
Inventors: 范亚雄; 刘伟; 张栋; 李永星; 朱昀
Original assignee: China Railway Construction Heavy Industry Group Co Ltd
Current assignee: China Railway Construction Heavy Industry Group Co Ltd
Priority date: 2024-11-26
Filing date: 2024-11-26
Publication date: 2025-10-14
Anticipated expiration: 2034-11-26

Abstract

The utility model discloses a hydraulic system for a drill arm of an anchor miner and an anchor miner adopting the same. The hydraulic system controls the switching of a first hydraulically controlled reversing valve and a second hydraulically controlled reversing valve by controlling the switching of a first reversing valve, thereby controlling the oil supply circuit of a swing motor to switch between a fast-action oil circuit and a slow-action oil circuit. When it is necessary to find a hole quickly, the system switches to the fast-action oil circuit to put the up-and-down swing motor and the left-and-right swing motor in a high-speed motion state. When it is necessary to align the hole at a low speed, the system switches to the slow-action oil circuit. A throttle valve is provided on the slow-action oil circuit to reduce the motion speed of the swing motor so as to improve the accuracy of hole alignment, thereby ensuring both hole alignment efficiency and hole alignment accuracy. The system has the advantages of simple structure, convenient operation and low cost.

Description

Drilling arm hydraulic system of tunneling and anchoring machine and tunneling and anchoring machine adopting same

Technical Field

The utility model relates to the technical field of excavating and anchoring machines, in particular to a drilling arm hydraulic system of an excavating and anchoring machine, and in addition, particularly relates to an excavating and anchoring machine adopting the drilling arm hydraulic system of the excavating and anchoring machine.

Background

At present, a constant power and load sensitive variable pump is adopted by a drill boom of an excavating and anchoring machine to control actions of each executive component in combination with a manual or electric control proportional multi-way valve, for example, patent CN112049656A discloses a crank arm type excavating and anchoring integrated machine with a random support and a hydraulic control system, and the control of each action of the drill boom of the excavating and anchoring machine can be realized by adopting the constant power and load sensitive system. When the anchor digger is used for drilling, the quick hole alignment is realized by controlling the up-down swing motor and the left-right swing motor to keep high-speed movement, but the up-down swing motor and the left-right swing motor always keep high-speed movement state, so that the action speed of the drill boom is faster, the position of the drill boom is difficult to adjust in time, and the accuracy of the hole alignment cannot be ensured. In addition, because the operation panel of the anchor boom arm of the tunneling and anchoring machine is arranged on the arm support, when an operator operates on the operation panel, the operation panel can incline gradually along with the lifting and descending of the anchor boom arm, and when the operator operates the arm support to lift, the operator also needs to actively operate the leveling oil cylinder in real time so as to ensure that the operation panel is in a horizontal state, and the operation mode is troublesome, low in efficiency and unsafe. In addition, as the operator operates on the drilling arm of the tunneling and anchoring machine, especially when the drill rod is assembled and disassembled, the body or clothes are easy to touch the handle of the multi-way valve by mistake, and once the arm support is triggered to lift or swing by mistake, the operator is easy to be injured by the misoperation of the arm support. In addition, due to structural limitation and other reasons, the balance valve of part of the oil cylinders is not attached to the valve seat of the oil cylinders, the oil cylinders are connected with the balance valve through pipelines, and once pipe explosion occurs, the arm support is easy to fall off or swing rapidly.

Disclosure of utility model

The utility model provides a drilling arm hydraulic system of an excavating and anchoring machine and the excavating and anchoring machine adopting the same, which can quickly find Kong Shikong up-down swing motors and left-right swing motors to move at high speed, and can quickly move Kong Shikong up-down swing motors and left-right swing motors at low speed, so that the hole aligning efficiency and the hole aligning precision are ensured.

According to one aspect of the utility model, a drilling and anchoring machine drill arm hydraulic system is provided, which comprises a hydraulic pump, a multi-way valve, a first reversing valve, a first hydraulic reversing valve, a second hydraulic reversing valve, a first throttling valve, a second throttling valve, a first balancing valve, a second balancing valve, an up-down swinging motor and a left-right swinging motor, wherein an oil outlet of the hydraulic pump is connected with an oil inlet of the multi-way valve, one working oil port of one working link of the multi-way valve is connected with an oil inlet of the first hydraulic reversing valve, the other working oil port is connected with the first balancing valve, one oil outlet of the first hydraulic reversing valve is directly connected with the first balancing valve, the other oil outlet of the first hydraulic reversing valve is connected with the first balancing valve through the first throttling valve, the first balancing valve is connected with the up-down swinging motor, one working oil port of the other working link of the multi-way valve is connected with the second balancing valve, one oil outlet of the second hydraulic reversing valve is directly connected with the second balancing valve, the other working oil port of the second hydraulic reversing valve is connected with the second balancing valve through the second throttling valve, the left-side reversing valve is connected with the second balancing valve, and the left-side reversing valve is connected with the second balancing valve respectively.

Further, the automatic leveling device also comprises an active leveling oil cylinder and a follow-up oil cylinder, wherein the follow-up oil cylinder is arranged on the drill boom lifting structure and is used for carrying out follow-up according to the lifting action of the drill boom, a first working oil port of one working link of the multi-way valve is connected with a rodless cavity of the active leveling oil cylinder through a third balance valve, a second working oil port is connected with a rod cavity of the active leveling oil cylinder through a third balance valve, the middle position of the working link valve core can be 0 type function, the rodless cavity of the follow-up oil cylinder is connected with the first working oil port, the rod cavity is connected with the second working oil port, and the valve core of the working link is controlled to be switched to the middle position when the drill boom lifts.

Further, the hydraulic oil system further comprises a first overflow valve and a second overflow valve, wherein the first overflow valve is connected with the first working oil port and the oil tank respectively, and the second overflow valve is connected with the second working oil port and the oil tank respectively.

Further, the hydraulic oil filling system further comprises a first one-way valve, a second one-way valve and a third one-way valve, wherein the oil filling source is connected with the first working oil port through the first one-way valve, connected with the second working oil port through the second one-way valve and connected with the oil tank through the third one-way valve, oil inlets of the three one-way valves are all connected with the oil filling source, and the third one-way valve is used for providing back pressure for filling oil.

Further, a first pipeline explosion-proof valve is arranged between the third balance valve and the rodless cavity of the active leveling oil cylinder.

Further, the hydraulic system further comprises a fourth balance valve and a drill boom telescopic oil cylinder, one working link of the multi-way valve is connected with the drill boom telescopic oil cylinder through the fourth balance valve, and a second pipeline explosion-proof valve is arranged between the fourth balance valve and a rodless cavity of the drill boom telescopic oil cylinder.

Further, the multi-way valve further comprises a fifth balance valve, a drill boom deflection oil cylinder, a sixth balance valve and a drill boom lifting oil cylinder, one working link of the multi-way valve is connected with the drill boom deflection oil cylinder through the fifth balance valve, the other working link is connected with the drill boom lifting oil cylinder through the sixth balance valve, and feedback oil ports of the two working links are connected with an oil tank through a second reversing valve.

Further, the hydraulic system further comprises a seventh balance valve and a thrust cylinder, and one working link of the multi-way valve is connected with the thrust cylinder through the seventh balance valve.

Further, the hydraulic system further comprises an eighth balance valve and an integral pushing cylinder, and one working link of the multi-way valve is connected with the integral pushing cylinder through the eighth balance valve.

In addition, the invention also provides an anchor driving machine, and the hydraulic system of the drill arm of the anchor driving machine is adopted.

The utility model has the following beneficial effects:

According to the drilling arm hydraulic system of the tunneling and anchoring machine, the reversing of the first hydraulic reversing valve and the reversing of the second hydraulic reversing valve are controlled by controlling the reversing of the first reversing valve, so that the oil supply circuit of the swing motor is controlled to be switched between the fast acting oil circuit and the slow acting oil circuit, when a fast hole is required to be found, the fast acting oil circuit is switched to enable the up-down swing motor and the left-right swing motor to be in a high-speed motion state, and when a low-speed hole is required to be found, the slow acting oil circuit is switched to be provided with the throttling valve, the motion speed of the swing motor can be reduced, so that the accuracy of the hole is improved, the hole aligning efficiency and the hole aligning accuracy are guaranteed at the same time, and the drilling arm hydraulic system has the advantages of being simple in structure, convenient to operate and low in cost.

In addition, the anchor machine of the present utility model also has the above-described advantages.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic hydraulic principle view of a drilling and anchoring machine drilling arm hydraulic system according to a preferred embodiment of the application.

Description of the reference numerals

1. Hydraulic pump, 2, multiple-way valve, 3, first reversing valve, 4, first hydraulic reversing valve, 5, second hydraulic reversing valve, 6, first throttle valve, 7, second throttle valve, 8, first balance valve, 9, second balance valve, 10, up-down swing motor, 11, left-right swing motor, 12, active leveling cylinder, 13, follow-up cylinder, 14, third balance valve, 15, first overflow valve, 16, second overflow valve, 17, first one-way valve, 18, second one-way valve, 19, third one-way valve, 20, first pipeline explosion-proof valve, 21, fourth balance valve, 22, drill boom expansion cylinder, 23, second pipeline explosion-proof valve, 24, fifth balance valve, 25, drill boom deflection cylinder, 26, sixth balance valve, 27, drill boom lifting cylinder, 28, second reversing valve, 29, seventh balance valve, 30, push cylinder, 31, eighth balance valve, 32, whole pushing cylinder, 33, ball valve, 34, third overflow valve, 35.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1, a preferred embodiment of the present application provides a drilling and bolting machine arm hydraulic system, which comprises a hydraulic pump 1, a multi-way valve 2, a first reversing valve 3, a first hydraulic reversing valve 4, a second hydraulic reversing valve 5, a first throttle valve 6, a second throttle valve 7, a first balancing valve 8, a second balancing valve 9, an up-down swing motor 10 and a left-right swing motor 11, wherein an oil outlet of the hydraulic pump 1 is connected with an oil inlet of the multi-way valve 2, one working oil port of one working link of the multi-way valve 2 is connected with an oil inlet of the first hydraulic reversing valve 4, the other working oil port is connected with the first balancing valve 8, one oil outlet of the first hydraulic reversing valve 4 is directly connected with the first balancing valve 8, the other oil outlet is connected with the first balancing valve 8 through the first throttle valve 6, the first balancing valve 8 is connected with an oil inlet of the up-down swing motor 10, the other working oil port of the multi-way valve 2 is connected with the second hydraulic reversing valve 5, the other working oil port of the other working link is connected with the second balancing valve 9, the second balancing valve 9 is directly connected with the second balancing valve 9, and the second balancing valve 7 is directly connected with the oil outlet of the second balancing valve 4 through the first balancing valve 9 and the second balancing valve 8. In addition, the oil outlet of the hydraulic pump 1 is also connected with an oil tank through a third overflow valve 34, and the third overflow valve 34 is used as a safety valve of a hydraulic system.

Specifically, the oil outlet of the hydraulic pump 1 is connected to the P port of the multiway valve 2, thereby supplying oil to the respective actuators of the hydraulic system. The port A3 of the third working link of the multi-way valve 2 is connected with the oil inlet of the first hydraulic control reversing valve 4, the port B3 is connected with the first balance valve 8, one oil outlet of the first hydraulic control reversing valve 4 is directly connected with the first balance valve 8, the other oil outlet is connected with the first balance valve 8 through the first throttle valve 6, the port A4 of the fourth working link of the multi-way valve 2 is connected with the oil inlet of the second hydraulic control reversing valve 5, the port B4 is connected with the second balance valve 9, one oil outlet of the second hydraulic control reversing valve 5 is directly connected with the second balance valve 9, and the other oil outlet is connected with the second balance valve 9 through the second throttle valve 7. By controlling the first pilot operated directional control valve 4 and the second pilot operated directional control valve 5 to perform the direction change, whether the oil passage passes through the first throttle valve 6 and the second throttle valve 7 can be controlled, wherein the passing flow rate of the first throttle valve 6 and the second throttle valve 7 can be adjusted. And the control oil ports of the first hydraulic control reversing valve 4 and the second hydraulic control reversing valve 5 are connected with the first reversing valve 3, and the first reversing valve 3 is connected with the low-pressure control oil port z of the multi-way valve 2. When the drill boom is far away from the hole site and needs to find the hole rapidly, the first reversing valve 3 is controlled not to reverse, low-pressure control oil does not enter the control oil ports of the first hydraulic reversing valve 4 and the second hydraulic reversing valve 5, the first hydraulic reversing valve 4 and the second hydraulic reversing valve 5 are not reversed, oil provided by the third working link and the fourth working link of the multi-way valve 2 does not enter the up-down swing motor 10 and the left-right swing motor 11 through the first throttling valve 6 and the second throttling valve 7 respectively, the up-down swing motor 10 and the left-right swing motor 11 are in a high-speed motion state, when the drill boom moves to be close to the hole site and needs to be in a hole alignment state, the first reversing valve 3 is controlled to reverse, low-pressure control oil enters the control oil ports of the first hydraulic reversing valve 4 and the second hydraulic reversing valve 5, the oil provided by the third working link and the fourth working link of the multi-way valve 2 enters the up-down swing motor 10 and the left-right swing motor 11 through the first throttling valve 6 and the second throttling valve 7 respectively, and the left-right swing motor 11 are controlled to be in a high-speed motion state, and the drill boom can be accurately adjusted in the left-right swing motor 11. The first reversing valve 3 may be an electric reversing valve or a manual reversing valve, and preferably a manual reversing valve.

It can be understood that in the drilling and anchoring machine drill arm hydraulic system of this embodiment, the reversing of the first hydraulic reversing valve 4 and the second hydraulic reversing valve 5 is controlled by controlling the reversing of the first reversing valve 3, so that the oil supply circuit of the swing motor is controlled to switch between a fast acting oil circuit and a slow acting oil circuit, when the quick hole searching is required, the oil supply circuit is switched to the fast acting oil circuit, so that the up-down swing motor 10 and the left-right swing motor 11 are in a high-speed motion state, and when the low-speed hole searching is required, the oil supply circuit is switched to the slow acting oil circuit, and the slow acting oil circuit is provided with a throttle valve, so that the motion speed of the swing motor can be reduced, so that the accuracy of hole searching is improved, and the hole searching efficiency and the hole searching accuracy are ensured at the same time.

In addition, the drilling arm hydraulic system of the tunneling and anchoring machine further comprises an active leveling oil cylinder 12 and a follow-up oil cylinder 13, wherein the follow-up oil cylinder 13 is arranged on a drilling arm lifting structure and is used for carrying out follow-up according to the lifting action of the drilling arm, a first working oil port of one working link of the multi-way valve 2 is connected with a rodless cavity of the active leveling oil cylinder 12 through a third balance valve 14, a second working oil port is connected with a rod cavity of the active leveling oil cylinder 12 through a third balance valve 14, the middle position function of the working link valve core is 0 type function, the rodless cavity of the follow-up oil cylinder 13 is connected with the first working oil port, the rod cavity is connected with the second working oil port, and the valve core of the working link is controlled to be switched to the middle position when the drilling arm performs lifting action.

Specifically, the following cylinder 13 is mounted on the boom lifting structure so as to follow up according to the lifting action of the boom, for example, one end of the following cylinder 13 is connected with the boom, the other end is connected with the mounting base, when the boom is lifted, the following cylinder 13 can be passively stretched, and when the boom is lowered, the following cylinder 13 can be passively retracted. The port A6 of the sixth working link of the multi-way valve 2 is connected with the rodless cavity of the active leveling cylinder 12 through the third balance valve 14, the port B6 is connected with the rod cavity of the active leveling cylinder 12 through the third balance valve 14, the median function of the sixth valve core is a 0 type function, the port A6 is also connected with the rodless cavity of the follow-up cylinder 13, and the port B6 is also connected with the rod cavity of the follow-up cylinder 13. When automatic leveling is needed, when the drill boom is lifted, the valve core of the sixth working link is controlled to be switched to the middle position, and all oil ports of the sixth working link are fully closed. When the drill boom ascends, the anchor boom operation table can incline upwards, the follow-up oil cylinder 13 is passively stretched, oil in a rod cavity is pressed into the rod cavity of the active leveling oil cylinder 12, so that the active leveling oil cylinder 12 is driven to retract, the anchor boom operation table inclines downwards, automatic leveling of the anchor boom operation table is achieved, when the drill boom descends, the anchor boom operation table inclines downwards, the follow-up oil cylinder 13 is passively contracted, oil in a rod-free cavity is pressed into the rod-free cavity of the active leveling oil cylinder 12, so that the active leveling oil cylinder 12 is driven to extend, the anchor boom operation table inclines upwards, and automatic leveling of the anchor boom operation table is achieved. In addition, when active leveling is needed, the active leveling cylinder 12 can be directly driven to extend and retract by controlling the valve core of the sixth working link to change direction, so that the active leveling of the anchor arm operating platform is realized.

It can be understood that the boom hydraulic system of the tunneling and anchoring machine is provided with a follow-up cylinder 13 which moves along with the lifting of the boom on the boom structure, and the rodless cavity and the rod cavity of the follow-up cylinder 13 are respectively connected with the rodless cavity and the rod cavity of the active leveling cylinder 12 through hydraulic pipelines, so that the automatic leveling of the boom arm operating platform is realized.

Optionally, the drilling arm hydraulic system of the tunneling and anchoring machine further comprises a first overflow valve 15 and a second overflow valve 16, wherein the first overflow valve 15 is respectively connected with the port A6 and the oil tank, and the second overflow valve 16 is respectively connected with the port B6 and the oil tank. When the active leveling cylinder 12 moves to the limit position and the follow-up cylinder 13 still performs follow-up action, once the oil pressure of the follow-up cylinder 13 pressed into the active leveling cylinder 12 exceeds a set value, the first overflow valve 15 or the second overflow valve 16 is opened for pressure relief so as to protect the cylinder from damage and prevent overpressure explosion.

Optionally, the drilling arm hydraulic system of the tunneling and anchoring machine further comprises a first one-way valve 17, a second one-way valve 18 and a third one-way valve 19, the oil supplementing source P1 is connected with the port A6 through the first one-way valve 17, connected with the port B6 through the second one-way valve 18 and connected with the oil tank through the third one-way valve 19, wherein oil inlets of the three one-way valves are connected with the oil supplementing source, and the third one-way valve 19 is used for providing oil supplementing back pressure. In the automatic leveling process, oil can be replenished through the oil replenishing oil source P1, the first one-way valve 17 and the second one-way valve 18, so that cavitation or oil cylinder shaking caused by air suction of the oil cylinder is prevented.

Optionally, a first pipeline explosion-proof valve 20 is further arranged between the third balance valve 14 and the rodless cavity of the active leveling cylinder 12. Due to structural limitation and other reasons, the third balance valve 14 is not attached to the valve seat of the active leveling cylinder 12, and the third balance valve 14 and the valve seat are connected through a pipeline, so that the boom is easy to fall off or swing quickly once the pipe burst occurs, and therefore, once the pipeline is broken, the oil in the rodless cavity can be locked quickly, the boom is not easy to fall off or swing quickly, and the safety is improved.

In addition, the boom hydraulic system of the tunneling and anchoring machine further comprises a fourth balance valve 21 and a boom telescopic cylinder 22, one working link of the multi-way valve 2 is connected with the boom telescopic cylinder 22 through the fourth balance valve 21, and a second pipeline explosion-proof valve 23 is arranged between the fourth balance valve 21 and a rodless cavity of the boom telescopic cylinder 22. Specifically, the port A5 of the fifth working link of the multi-way valve 2 is connected with the rodless cavity of the boom extension cylinder 22, the port B5 is connected with the rod cavity of the boom extension cylinder 22, and the fourth balance valve 21 is disposed between the fifth working link and the boom extension cylinder 22, and the second pipeline explosion-proof valve 23 is disposed between the fourth balance valve 21 and the rodless cavity of the boom extension cylinder 22. Because the fourth balance valve 21 of the boom telescoping cylinder 22 is not attached to the cylinder, the fourth balance valve 21 is connected with the boom telescoping cylinder 22 through a hydraulic hose, once pipe explosion occurs, the boom can fall down quickly, and a safety accident is caused, so the second pipeline explosion-proof valve 23 is added on the oil port of the rodless cavity of the cylinder, once pipe explosion occurs, the second pipeline explosion-proof valve 23 can be closed quickly, the oil in the rodless cavity of the boom telescoping cylinder 22 is locked, and the posture of the arm support is kept from falling.

In addition, the drilling arm hydraulic system of the tunneling and anchoring machine further comprises a fifth balance valve 24, a drilling arm deflection cylinder 25, a sixth balance valve 26 and a drilling arm lifting cylinder 27, one working link of the multi-way valve 2 is connected with the drilling arm deflection cylinder 25 through the fifth balance valve 24, the other working link is connected with the drilling arm lifting cylinder 27 through the sixth balance valve 26, and feedback oil ports of the two working links are connected with an oil tank through a second reversing valve 28. Specifically, the eighth working unit of the multi-way valve 2 is connected with the boom deflection cylinder 25 through the fifth balance valve 24, the ninth working unit is connected with the boom lifting cylinder 27 through the sixth balance valve 26, and the feedback oil ports LS1, LS2, LS3, LS4 of the two working units are all connected with the oil tank through the second reversing valve 28, when the second reversing valve 28 does not reverse, the control oil LS of the multi-way valve 2 is unloaded, the system cannot build pressure, and when the second reversing valve 28 reverses, the control oil LS of the multi-way valve 2 can build pressure. Therefore, when the drill boom is required to swing, the eighth linkage handle of the multi-way valve 2 and the second reversing valve 28 must be simultaneously operated, and when the drill boom is required to lift, the ninth linkage handle of the multi-way valve 2 and the second reversing valve 28 must be simultaneously operated, so as to avoid the occurrence of the action of the arm support caused by the false touch or the false operation. The second reversing valve 28 may be an electrically controlled reversing valve or a manual reversing valve, preferably a manual reversing valve. In addition, the rodless cavity of the drill boom lifting oil cylinder 27 is also connected with an oil tank through a ball valve 35, when the machine is in failure and stops, the hydraulic system can not act, the ball valve 35 can be opened to drain oil in the rodless cavity, so that the arm support is put down, and the safe evacuation of personnel is realized.

In addition, the drilling arm hydraulic system of the tunneling and anchoring machine further comprises a seventh balance valve 29 and a propulsion cylinder 30, and the second working communication of the multi-way valve 2 is connected with the propulsion cylinder 30 through the seventh balance valve 29. In addition, the drilling arm hydraulic system of the tunneling and anchoring machine further comprises an eighth balance valve 31 and an integral pushing cylinder 32, and the seventh working link of the multi-way valve 2 is connected with the integral pushing cylinder 32 through the eighth balance valve 31. In addition, the first working line of the multi-way valve 2 is also connected to a drilling motor 33. It will be appreciated that the various actuators (cylinders and motors) of the hydraulic system of the present application are well known in the art, and their specific functions are not described in detail herein.

In addition, another embodiment of the invention also provides an anchor machine, preferably adopting the arm hydraulic system of the anchor machine.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an excavating and anchoring machine drill arm hydraulic system which is characterized by comprising a hydraulic pump (1), a multi-way valve (2), a first reversing valve (3), a first hydraulic reversing valve (4), a second hydraulic reversing valve (5), a first throttle valve (6), a second throttle valve (7), a first balance valve (8), a second balance valve (9), an up-and-down swing motor (10) and a left-and-right swing motor (11), wherein the oil outlet of the hydraulic pump (1) is connected with the oil inlet of the multi-way valve (2), one working oil port of one working link of the multi-way valve (2) is connected with the oil inlet of the first hydraulic reversing valve (4), the other working oil port is connected with the first balance valve (8), one oil outlet of the first hydraulic reversing valve (4) is directly connected with the first balance valve (8), the other oil outlet is connected with the first balance valve (8) through the first throttle valve (6), the first balance valve (8) is connected with the up-and-down swing motor (11), the other working oil port of the multi-way valve (2) is connected with the second balance valve (9) through the second hydraulic reversing valve (9) directly connected with the second balance valve (9), the second balance valve (9) is connected with the left-right swing motor (11), and the first reversing valve (3) is respectively connected with a low-pressure control oil port of the multi-way valve (2), a control oil port of the first hydraulic control reversing valve (4) and a control oil port of the second hydraulic control reversing valve (5).

2. The drilling and anchoring machine drilling arm hydraulic system according to claim 1, further comprising an active leveling oil cylinder (12) and a follow-up oil cylinder (13), wherein the follow-up oil cylinder (13) is mounted on the drilling arm lifting structure and is used for following according to the lifting action of the drilling arm, a first working oil port of one working link of the multi-way valve (2) is connected with a rodless cavity of the active leveling oil cylinder (12) through a third balance valve (14), a second working oil port is connected with a rod cavity of the active leveling oil cylinder (12) through a third balance valve (14), the middle position function of the working link valve core is 0 type function, the rodless cavity of the follow-up oil cylinder (13) is connected with the first working oil port, the rod cavity is connected with the second working oil port, and the valve core of the working link is controlled to be switched to the middle position when the drilling arm performs lifting action.

3. The boom hydraulic system of an earth-boring and anchoring machine according to claim 2, further comprising a first relief valve (15) and a second relief valve (16), the first relief valve (15) being connected to the first working port and the tank, respectively, and the second relief valve (16) being connected to the second working port and the tank, respectively.

4. The drilling and anchoring machine drill arm hydraulic system according to claim 3, further comprising a first one-way valve (17), a second one-way valve (18) and a third one-way valve (19), wherein the oil supplementing source is connected with the first working oil port through the first one-way valve (17), the second working oil port through the second one-way valve (18), the oil tank through the third one-way valve (19), the oil inlets of the three one-way valves are all connected with the oil supplementing source, and the third one-way valve (19) is used for providing oil supplementing back pressure.

5. The boom hydraulic system of an excavator and anchor machine of claim 2 wherein a first pipeline explosion-proof valve (20) is also provided between the third balance valve (14) and the rodless cavity of the active leveling cylinder (12).

6. The boom hydraulic system of an excavator and anchor machine according to claim 1, further comprising a fourth balance valve (21) and a boom extension cylinder (22), wherein one working connection of the multi-way valve (2) is connected to the boom extension cylinder (22) through the fourth balance valve (21), and wherein a second pipeline explosion-proof valve (23) is arranged between the fourth balance valve (21) and the rodless cavity of the boom extension cylinder (22).

7. The drilling and bolting machine boom hydraulic system according to claim 1, further comprising a fifth balance valve (24), a boom deflection cylinder (25), a sixth balance valve (26) and a boom hoist cylinder (27), wherein one working couple of said multiple-way valve (2) is connected to the boom deflection cylinder (25) via the fifth balance valve (24), the other working couple is connected to the boom hoist cylinder (27) via the sixth balance valve (26), and the feedback ports of both working couples are connected to the oil tank via the second reversing valve (28).

8. The boom hydraulic system of an earth boring and anchoring machine of claim 1, further comprising a seventh balancing valve (29) and a thrust cylinder (30), wherein one working string of the multiplex valve (2) is connected to the thrust cylinder (30) via the seventh balancing valve (29).

9. The drilling and bolting machine boom hydraulic system according to claim 1, further comprising an eighth balancing valve (31) and an integral pushing cylinder (32), wherein one working couple of said multiple way valve (2) is connected to the integral pushing cylinder (32) through the eighth balancing valve (31).

10. An anchor drilling machine, characterized in that the hydraulic system of the drill arm of the anchor drilling machine is adopted.