CN-116877515-B - Rotary system of cutting mechanism of tunneling and anchoring machine

CN116877515BCN 116877515 BCN116877515 BCN 116877515BCN-116877515-B

Abstract

The invention discloses a rotary system of a cutting mechanism of an excavating and anchoring machine, which comprises two hydraulic cylinders, an electromagnetic reversing valve, a logic controller and an electric control button. The hydraulic cylinder with the displacement sensor, the electromagnetic directional valve, the logic controller and the electric control button are arranged to form the one-key centering control system for the cutting mechanism of the anchor digger, the system is used in the hydraulic system of the anchor digger, the electric control button can be pressed to realize one-key centering of the cutting mechanism of the anchor digger when needed, and the centering is accurate without depending on visual judgment of operators. When the left and right anchor rod drilling machine is used, the cutting mechanism of the anchor digging machine is ensured to maintain an accurate middle-set state, and the use effect of the anchor digging machine is not affected due to the fact that the cutting mechanism of the anchor digging machine is not well controlled to the left or the right. The system is simple and compact, convenient to manufacture and process, simpler and more efficient to operate, reduces the operation difficulty of workers, and improves the working efficiency and the safety degree during construction.

Inventors

LIANG XIUYUN
ZHENG JIAMENG
TAO YONGQIN
Si Fulong
XU TONGLE
LIU YANG

Assignees

凯盛重工有限公司

Dates

Publication Date: 20260505
Application Date: 20230718

Claims (4)

1. A rotary system of a cutting mechanism of an excavating and anchoring machine, which is characterized by comprising: Two hydraulic cylinders, wherein a displacement sensor is arranged in one hydraulic cylinder and is used as a sensing cylinder (1); The electromagnetic directional valve (4) is communicated with the two hydraulic cylinders through oil paths and is used for controlling the flow of hydraulic oil; A first safety valve (3) is arranged at the position, between the electromagnetic reversing valve (4) and the hydraulic cylinder, of the oil path, and a damping (8) is arranged in a pilot pressure opening oil path of the first safety valve (3); The oil way comprises a first oil way and a second oil way, one end of the first oil way is connected with the electromagnetic directional valve (4), the other end of the first oil way is communicated with a rodless cavity of one hydraulic cylinder and a rod cavity of the other hydraulic cylinder, one end of the second oil way is connected with the electromagnetic directional valve (4), and the other end of the second oil way is communicated with the rod cavity of the one hydraulic cylinder and the rodless cavity of the other hydraulic cylinder; the logic controller (5) is respectively in communication connection with the displacement sensor and the electromagnetic reversing valve (4); the electric control button (6), the said electric control button (6) is connected with said logic controller (5) electrically; When the electric control button (6) is in a pressed state, the displacement sensor acquires the stroke x of the sensing oil cylinder (1) and transmits the stroke x to the logic controller (5), and the logic controller (5) is used for controlling the action of the electromagnetic directional valve (4): When the stroke x is equal to a preset value a, the cutting mechanism is in a middle-set state, and the electromagnetic directional valve (4) does not act; When the stroke x is larger than a preset value a, the logic controller (5) sends a signal to the electromagnetic directional valve (4), and the electromagnetic directional valve (4) acts to enable the piston of the sensing oil cylinder (1) to retract until the stroke of the sensing oil cylinder (1) is reduced to be equal to the preset value a; When the stroke x is smaller than a preset value a, the logic controller (5) sends a signal to the electromagnetic directional valve (4), and the electromagnetic directional valve (4) acts to enable the piston of the sensing oil cylinder (1) to extend until the stroke of the sensing oil cylinder (1) is increased to be equal to the preset value a.
2. The rotary system of the cutting mechanism of the excavator and the anchor machine according to claim 1, wherein a second safety valve (2) is further arranged in the oil path, one end of the second safety valve (2) is connected to a position between the first safety valve (3) and the hydraulic cylinder in one oil path, the other end of the second safety valve is connected to the other oil path, and a connecting point is positioned between the first safety valve (3) and the electromagnetic reversing valve (4) on the other oil path.
3. The rotary system of a cutting mechanism of an excavator and anchor machine according to claim 2, characterized in that the overflow pressure of the first safety valve (3) is 250bar and the overflow pressure of the second safety valve (2) is 280bar.
4. A rotary system of a cutting mechanism of an earth boring machine according to any one of claims 1 to 3, characterized in that a rotary control handle (7) is provided, said rotary control handle (7) being adapted to control the action of the electromagnetic directional valve (4).

Description

Rotary system of cutting mechanism of tunneling and anchoring machine Technical Field The invention relates to the technical field of digging and anchoring machines, in particular to a revolving system of a cutting mechanism of a digging and anchoring machine. Background In existing earth boring and anchoring machine equipment, the drill and anchor systems are disposed on both sides of the machine above the running section. The onboard temporary support structure is arranged above the cutting mechanism. After the cutting operation executed by the cutting mechanism of the anchor digger is finished, the cutting mechanism is put in the middle and placed on the ground. Then the machine-mounted temporary support structure is lifted, and anchor rods and anchor net are beaten by anchor rod drilling machines on two sides of the anchor digger. Because of the compactness requirement of the equipment, the distance between the jumbolters at the two sides and the cutting mechanism is limited, and if the cutting mechanism is not precisely in a middle-set state, but the situation of deflection exists, the jumbolters at the two sides can easily collide with the cutting mechanism to damage the equipment. Therefore, when the jumbolter on both sides acts, the cutting mechanism needs to be in a more accurate middle-set state. However, whether the cutting mechanism of the existing underground coal mine anchor excavator is arranged in the well depends on the visual effect of workers to operate and judge through experience, light rays in the underground coal mine are poor, and sight is shielded by equipment, so that the operation difficulty of the workers is further increased. The equipment is hardly in a middle-set state in an ideal sense, so that the damage frequency caused by equipment collision is increased, and the use and maintenance cost of the equipment is increased. Disclosure of Invention The invention solves the technical problem that whether the existing underground coal mine cutting mechanism of the anchor driving machine is arranged in the coal mine is completely operated and judged by experience depending on the visual effect of workers, so that the operation difficulty of the workers is increased. The equipment is hardly in a middle-set state in an ideal sense, so that the damage frequency caused by equipment collision is increased, and the use and maintenance cost of the equipment is increased. The aim of the invention can be achieved by the following technical scheme: A rotary system of a cutting mechanism of an excavating and anchoring machine, comprising: The hydraulic oil cylinder comprises two hydraulic oil cylinders, wherein a displacement sensor is arranged in one of the hydraulic oil cylinders and used as a sensing oil cylinder; The electromagnetic reversing valve is communicated with the two hydraulic cylinders through oil paths and is used for controlling the flow of hydraulic oil; the logic controller is respectively in communication connection with the displacement sensor and the electromagnetic reversing valve; the electric control button is electrically connected with the logic controller; When the electric control button is in a pressing state, the displacement sensor acquires the stroke x of the sensing oil cylinder and transmits the stroke x to a logic controller, and the logic controller is used for controlling the action of the electromagnetic directional valve: when the stroke x is equal to a preset value a, the cutting mechanism is in a middle-set state, and the electromagnetic reversing valve does not act; When the stroke x is larger than a preset value a, the logic controller sends a signal to an electromagnetic reversing valve, and the electromagnetic reversing valve acts to enable the piston of the sensing oil cylinder to retract until the stroke of the sensing oil cylinder is reduced to be equal to the preset value a; when the stroke x is smaller than a preset value a, the logic controller sends a signal to the electromagnetic reversing valve, and the electromagnetic reversing valve acts to enable the piston of the sensing oil cylinder to extend out until the stroke of the sensing oil cylinder is increased to be equal to the preset value a. As a further scheme of the invention, a first safety valve is arranged at the position of the oil path between the electromagnetic directional valve and the hydraulic cylinder. As a further aspect of the present invention, a damping is provided in the pilot pressure opening oil passage of the first relief valve. As a further scheme of the invention: the oil way comprises a first oil way and a second oil way, one end of the first oil way is connected with the electromagnetic directional valve, the other end of the first oil way is communicated with the rodless cavity of one hydraulic cylinder and the rod-containing cavity of the other hydraulic cylinder, one end of the second oil way is connected with the electromagnetic directional valve, and the othe