Rock drilling machine anti-sticking pricker system
Technical field
The present invention relates to rock mining engineering field of mechanical technique, particularly a kind of rock drilling machine anti-sticking pricker system.
Background technique
A kind of engineering mechanical device using when rock drilling machine is rock mining, its work object is the hole that gets out certain diameter in rock, thereby can in hole, fill explosive decomposes rock blasting, rock drilling machine has the pricker of turning and impact function, hydraulic system drives the rotation of rotating drill rod mechanism oil hydraulic motor, drives drill steel and bit, impacts oil cylinder piston to-and-fro motion simultaneously and act on the drill steel end of rotating drill rod mechanism, by drill steel, impact energy is delivered to drill bit, propelling cylinder promotes rock drilling machine and advances.Rock drilling machine due to strata structure complexity, is easy to occur card pricker phenomenon in boring procedure, once there is card pricker, need spended time to process by drill-pipe-sticking-head and drill steel, not only have a strong impact on working efficiency, also may cause drill bit and drill steel to be forced to abandon, increase Drilling cost.The anti-sticking pricker system that rock drilling machine is equipped with at present, by hydraulic control valve, realize anti-sticking pricker function, as utility model patent " drill loader hydraulic pressure anti-sticking pricker control system " (application number: 201220599332.2, publication No.: CN102927071 A), it is to realize anti-sticking pricker function by complicated hydraulic pilot reponse system, not only mechanism's complexity, and because the reaction velocity of hydraulic pressure has certain hysteresis quality, in real work, occur sometimes that anti-sticking pricker system does not also start, stuck phenomenon of drill steel.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of simple in structure, reaction velocity fast, can better prevent and the rock drilling machine anti-sticking pricker system of transaction card pricker.
The technical solution adopted in the present invention is: a kind of rock drilling machine anti-sticking pricker system is provided, comprise oil hydraulic motor, propelling hydraulic cylinder, impactor impact hydraulic cylinder, also comprise rotary pressure sensor, propelling pressure sensor, rotation oil circuit electro-hydraulic proportional valve, advance oil circuit electro-hydraulic proportional valve, impact oil circuit electro-hydraulic proportional valve, microcomputer controller and display screen, described rotary pressure sensor, propelling pressure sensor is located at respectively on the oil circuit of oil hydraulic motor and propelling hydraulic cylinder, described rotation oil circuit electro-hydraulic proportional valve, advance oil circuit electro-hydraulic proportional valve and impact oil circuit electro-hydraulic proportional valve and be located at respectively oil hydraulic motor, on the oil circuit of propelling hydraulic cylinder and impactor impact hydraulic cylinder, rotary pressure sensor, propelling pressure sensor and display screen are all electrically connected with the input end of microcomputer controller, rotation oil circuit electro-hydraulic proportional valve, advance oil circuit electro-hydraulic proportional valve and impact oil circuit electro-hydraulic proportional valve and be all electrically connected with the output terminal of microcomputer controller.
Described microcomputer controller is singlechip controller or the PLC controller that possesses calculation by program function.
In described microcomputer controller, be provided with the computer program for dissimilar rock, the computer program of dissimilar rock is confirmed by display screen.
Described impact oil circuit electro-hydraulic proportional valve is attached most importance to and is impacted and light two grades of control valves that impact.
Rock drilling machine anti-sticking pricker system of the present invention, adopt after above-mentioned technological scheme, during boring, rotary pressure sensor can be responded to the rotary pressure situation of rock drill rotating machinery in real time, and rotary pressure data are flowed to microcomputer controller, in conjunction with the conveying data of propelling pressure sensor, microcomputer controller by analytical calculation after to rotation oil circuit electro-hydraulic proportional valve with advance oil circuit electro-hydraulic proportional valve to send instruction, rotating speed and fltting speed to oil hydraulic motor are controlled, send instruction to impacting oil circuit electro-hydraulic proportional valve simultaneously, impact power size is controlled, the present invention does not use numerous and diverse hydraulic pilot reponse system, adopt sensor induction in real time and control, simple in structure, reaction velocity is fast, can prevent preferably the appearance with transaction card pricker situation.
As preferably, in described microcomputer controller, be provided with the computer program for dissimilar rock, the computer program of dissimilar rock confirms by display screen, can transfer different programs according to drilling rock dissimilar, makes the present invention more targeted.
As preferably, described impact oil circuit electro-hydraulic proportional valve is attached most importance to and is impacted and light two grades of control valves that impact, and simple in structure, cost is lower.
Accompanying drawing explanation
Fig. 1 is the connection diagram of rock drilling machine anti-sticking pricker system of the present invention.
Fig. 2 is the logical schematic of rock drilling machine anti-sticking pricker system of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As Fig. 1, shown in Fig. 2, rock drilling machine anti-sticking pricker system of the present invention, comprise oil hydraulic motor, propelling hydraulic cylinder, impactor impact hydraulic cylinder, also comprise rotary pressure sensor, propelling pressure sensor, rotation oil circuit electro-hydraulic proportional valve, advance oil circuit electro-hydraulic proportional valve, impact oil circuit electro-hydraulic proportional valve, microcomputer controller and display screen, rotary pressure sensor, propelling pressure sensor is located at respectively on the oil circuit of oil hydraulic motor and propelling hydraulic cylinder, and respectively near oil hydraulic motor and propelling hydraulic cylinder, rotation oil circuit electro-hydraulic proportional valve, advance oil circuit electro-hydraulic proportional valve and impact oil circuit electro-hydraulic proportional valve and be located at respectively oil hydraulic motor, on the oil circuit of propelling hydraulic cylinder and impactor impact hydraulic cylinder, rotary pressure sensor, propelling pressure sensor and display screen are all electrically connected with the input end of microcomputer controller, rotation oil circuit electro-hydraulic proportional valve, advance oil circuit electro-hydraulic proportional valve and impact oil circuit electro-hydraulic proportional valve and be all electrically connected with the output terminal of microcomputer controller.
The present invention in the specific implementation, computer controller is singlechip controller or the PLC controller that possesses calculation by program function, in microcomputer controller, be provided with the computer program for dissimilar rock, the computer program of dissimilar rock is confirmed by display screen, display screen is touch screen display, before bore operation, by display screen, confirm type and the parameter of institute's rock drilling, thereby controller can call the accurate reaction of the computer program output control action of the type rock, the program of calculating can comprise the concrete processor that rotary pressure value increases, the concrete processor that rotary pressure value reduces, also comprise the speed that rotary pressure value increases or reduces, the namely variation of force value is slow or quick, corresponding concrete processor.
When the present invention works, by display screen, confirm after the parameters such as institute's rock drilling type and boring aperture, the corresponding program of microcomputer controller Automatically invoked, in boring procedure, if the more difficult cutting of institute's rock drilling stone, when rock drilling machine rotational resistance increases, rotary pressure sensor is responded to the signal that feeds back rotary pressure increase after rotary pressure in real time to microcomputer controller, microcomputer controller is according to rotary pressure value added and be rapid increase or slowly increase and analyze, while is in conjunction with the numerical value of propelling pressure sensor, send instruction to advancing oil circuit electro-hydraulic proportional valve and impacting oil circuit electro-hydraulic proportional valve, reduce fltting speed and impactor impact force, when rotary pressure sensor feedback goes out rotary pressure and alleviates, progressively recover fltting speed and impact force, if rotary pressure still increases, continue to reduce fltting speed and impact force, until stop advancing, send instruction to impacting oil circuit electro-hydraulic proportional valve simultaneously, further reduce impact force.
When rock drilling machine rotational resistance reduces, rotary pressure sensor is responded to the signal that feeds back rotary pressure minimizing after rotary pressure in real time to microcomputer controller, microcomputer controller is according to rotary pressure minimizing value and be rapid reduce or slowly reduce and analyze, while is in conjunction with the numerical value of propelling pressure sensor, send instruction to advancing oil circuit electro-hydraulic proportional valve and impacting oil circuit electro-hydraulic proportional valve, improve fltting speed and impactor impact force; When rotary pressure sensor feedback goes out rotary pressure increase, gradually reduce fltting speed and impact force.