CN115711087A - Tertiary anti-sticking borer system of rock drilling control - Google Patents
Tertiary anti-sticking borer system of rock drilling control Download PDFInfo
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Abstract
The invention provides a three-level anti-jamming drill rod system for rock drilling control, which relates to the technical field of drilling and comprises the following components: a rock drilling and hole drilling control system and a three-level drill rod clamping prevention system; the rock drilling control system comprises a hydraulic pump, a hydraulic oil tank, a hydraulic oil cylinder, a control oil source valve, a hydraulic motor, impact equipment, a load-sensitive rock drilling multi-way valve and a drill rod blocking prevention valve group, wherein the hydraulic pump is respectively connected with a first oil port and a fifth oil port, a sixth oil port and a seventh oil port of the load-sensitive rock drilling multi-way valve, and the hydraulic oil tank is connected with a second oil port of the rock drilling valve group. The method can improve the adjustability control and intelligent degree under different working conditions in the rock drilling construction process, improve the working efficiency of rock drilling, identify the potential risk of drill rod clamping, automatically control the drill rod clamping prevention, avoid the occurrence of drill rod clamping, improve the construction efficiency and prolong the service life of equipment.
Description
Technical Field
The invention relates to the technical field of drilling, in particular to a three-level anti-jamming drill rod system for controlling rock drilling.
Background
The rock stratum geological conditions that meet when present hydraulic rock drill is regarded as a rotatory impact crushing equipment drilling operation are complicated changeable, need different propulsion pressure and impact pressure to different geological structures to match, in addition the drill bit creeps into the in-process and if meet the geology inequality, the solution rock, the condition such as crack can cause the card borer phenomenon, therefore hydraulic control system of rock drill need possess according to different geological conditions simple convenient regulation impact pressure and propulsion pressure and reliable anti-sticking borer function, need operating personnel to control operations such as the feeding of equipment, gyration, impact in addition in the rock drilling work progress, the switch or the handle quantity that need control are more, rock drilling positioning time overlength then leads to easily under the inconvenient regulation of rock drilling in-process speed or the unadjustable condition, delay man-hour, the condition such as card borer and disconnected drilling rod can appear even seriously influences the efficiency of construction.
Disclosure of Invention
The invention solves the problems of how to improve the adjustability control and intelligent degree under different working conditions in the rock drilling construction process, improve the working efficiency of rock drilling, how to identify the potential risk of drill rod clamping, automatically perform anti-drill rod clamping control, avoid the occurrence of drill rod clamping, improve the construction efficiency and prolong the service life of equipment.
In order to solve the above problems, the present invention provides a three-stage anti-jamming system for rock drilling control, comprising: a rock drilling and hole drilling control system and a three-level drill rod clamping prevention system;
the rock drilling control system comprises a hydraulic pump, a hydraulic oil tank, a hydraulic oil cylinder, a control oil source valve, a hydraulic motor, an impact device, a load-sensitive rock drilling multi-way valve and a drill rod blocking prevention valve group, wherein the hydraulic pump is respectively connected with a first oil port, a fifth oil port, a sixth oil port and a seventh oil port of the load-sensitive rock drilling multi-way valve;
the three-stage anti-jamming system is provided with an overflow valve, an anti-idle-run valve, an anti-jamming valve, a three-stage anti-jamming valve, an overflow valve group and a shuttle valve;
the tenth oil port is connected with an oil inlet of the overflow valve, an oil inlet of the third-stage anti-jamming valve and an oil inlet of the air defense valve, the second oil port is connected with an oil return port of the overflow valve, an oil return port of the three-stage anti-jamming valve, an oil return port of the air defense valve, an oil return port of the overflow valve and an oil return port of the anti-jamming valve, the eighth oil port is connected with an oil inlet A of the anti-jamming valve, a first oil inlet of the shuttle valve, a control oil port of the third-stage anti-jamming valve and an oil inlet of the overflow valve group, the third oil port is connected with a control oil port of the anti-jamming valve, the eleventh oil port is connected with a control oil port of the overflow valve group, the ninth oil port is connected with the other oil inlet B of the anti-jamming valve and a second oil inlet of the shuttle valve, an oil outlet of the shuttle valve is connected with the control port of the air defense valve, an oil outlet of the air defense valve is externally connected with the impact oil outlet equipment, an A4 of the anti-jamming valve is externally connected with a rodless cavity of the hydraulic oil cylinder, and another oil outlet B4 of the anti-jamming valve is externally connected with a rod cavity.
Furthermore, the rock drilling control system and the three-level drill rod clamping prevention system are connected with external equipment and are provided with a plurality of pressure detection ports for being communicated with the pressure detection equipment, oil is supplied to the valve bank through the hydraulic pump by controlling the working state of each valve block in the valve bank and is output to the hydraulic motor, the hydraulic oil cylinder and the impact equipment, the hydraulic oil cylinder is controlled to perform rock drilling feeding operation, and synchronous operation of rock drilling feeding, rotation and impact is controlled; in the operation process, the internal pressure of the hydraulic oil cylinder and the impact equipment is monitored in real time through the thirteenth oil port of the rock drilling speed proportional control valve, the variable of the hydraulic pump is controlled, the throttle area of internal oil passing of a valve core is changed by adjusting the push angle of an operating rod of the rock drilling speed proportional control valve, the flow of a working port for supplying the hydraulic oil cylinder and the impact equipment is controlled and adjusted, the advancing or retreating speed of the hydraulic oil cylinder is controlled and adjusted, the impact frequency and the impact pressure of the impact equipment are controlled and adjusted, the control pressure of a three-level anti-jamming valve group is obtained by detecting the pressure of a hydraulic motor, the impact equipment and a rodless cavity of the hydraulic oil cylinder, and the pressure and the flow for supplying the hydraulic motor, the impact equipment and the hydraulic oil cylinder are adjusted.
Furthermore, the three-stage anti-jamming drill valve consists of a two-position two-way reversing valve, two overflow valves and a damper; the overflow valve group consists of a two-position two-way reversing valve, two overflow valves and a damper; the anti-idle-run valve consists of a two-position three-way reversing valve, the overflow valve and a damper; the anti-jamming drill valve consists of a two-position four-way reversing valve, a two-position two-way reversing valve, a one-way valve, four dampers and two overflow valves.
Further, the load-sensitive rock drilling multi-way valve comprises: the oil inlet valve comprises a first oil inlet valve, a rotary reversing valve, a second oil inlet valve, an impact reversing valve, a propulsion reversing valve and an oil inlet and return valve;
the oil inlet of the first oil inlet valve and the oil inlet of the oil inlet and return valve are respectively connected with the oil inlet of the unloading valve core inside the respective valve block, two oil inlets of the second oil inlet valve are connected with the oil outlet of the oil inlet and return valve and the oil inlet of the impact reversing valve and the oil inlet of the propulsion reversing valve, the oil inlet of the rotary reversing valve is connected with the oil outlet of the first oil inlet valve, the feedback oil path of the rotary reversing valve over-pressure compensator is connected with the main overflow valve of the first oil inlet valve and the oil inlet of the speed regulating valve, the feedback oil path of the impact reversing valve over-pressure compensator and the feedback oil path of the propulsion reversing valve over-pressure compensator are connected with the main overflow valve of the oil inlet and return valve and the oil inlet of the speed regulating valve, the rotary reversing valve is provided with two secondary overflow valves, the oil inlets of the secondary overflow valves are connected with the working port of the rotary reversing valve, the oil outlets of the overflow valves and the oil outlet of the unloading valve cores are connected with a hydraulic oil tank, and the oil return ports of the reversing valves are mutually communicated and connected with the hydraulic oil tank.
Furthermore, two reversing oil ports are arranged on the steel ball positioning cavities of the impact reversing valve and the propulsion reversing valve and connected with an external control oil source, and the control oil source is opened to push the valve rod to reverse.
Furthermore, an oil inlet of a main overflow valve of the three-level anti-jamming valve is connected with an oil outlet of the two-position two-way reversing valve, the oil inlet of the overflow valve is controlled to be connected with a spring cavity of the two-position two-way reversing valve and an oil path of an oil control port passing through two damping holes, the oil control path is connected with a reversing cavity of the two-position two-way reversing valve after passing through one damping hole, oil outlets of the two overflow valves are connected with a hydraulic oil tank, and the three-level anti-jamming valve is provided with two pressure detection ports for detecting the pressure of the oil inlet.
Furthermore, an oil inlet of a high-thrust overflow valve of the overflow valve group is connected with an oil inlet, a reversing cavity of the two-position two-way reversing valve is connected with an oil path of the oil control port after passing through the damping hole, an oil inlet of the low-thrust overflow valve is connected with an oil outlet of the two-position two-way reversing valve, spring cavities of the two overflow valves and the two-position two-way reversing valve are connected with a hydraulic oil tank, and the overflow valve group is provided with a pressure detection port for detecting the pressure of the oil inlet.
Furthermore, a reversing cavity of the two-position two-way reversing valve of the idle-run prevention valve is connected with an oil way after a control oil port passes through the damping hole, an oil outlet of the two-position two-way reversing valve is connected with impact equipment, a spring cavity of the two-position two-way reversing valve and an oil return port of the two-position two-way reversing valve are connected with a hydraulic oil tank, and the reversing pressure of the two-position two-way reversing valve is adjustable.
Furthermore, an oil outlet of a two-position four-way reversing valve of the anti-jamming drill valve is connected with an oil inlet of the two-position two-way reversing valve and a spring cavity of the check valve, the other oil outlet of the two-position four-way reversing valve is connected with a rod cavity of the hydraulic oil cylinder, a reversing cavity of the two-position four-way reversing valve is connected with an oil way after a control oil port passes through one damping hole, the spring cavity of the two-position four-way reversing valve is connected with an oil way after the control oil port passes through two damping holes, an oil outlet of the two-position two-way reversing valve is connected with a rodless cavity of the hydraulic oil cylinder, a reversing cavity of the two-position two-way reversing valve is connected with an oil way after the control oil port passes through two damping holes, oil inlets of the two overflow valves are connected with oil ways after the control oil ports pass through two damping holes, oil outlets of the two overflow valves are connected with a hydraulic oil tank, and a reversing cavity of the check valve is connected with a rodless cavity of the hydraulic oil cylinder.
Furthermore, the anti-jamming drill valve is provided with two pressure detection ports for detecting the pressure of the oil inlet A, one pressure detection port for detecting the pressure of the oil inlet B, two pressure detection ports for detecting the pressure of the control oil port, one pressure detection port for detecting the pressure of the spring cavity of the two-position four-way reversing valve, one pressure detection port for detecting the pressure of the spring cavity of the two-position two-way reversing valve and one pressure detection port for detecting the pressure of the oil outlet of the two-position two-way reversing valve.
The technical scheme adopted by the invention has the following beneficial effects:
according to the invention, a plurality of oil ports are arranged on a three-stage drill rod clamping prevention system controlled by rock drilling, external equipment is connected, a pressure detection port is reserved, the pressure detection equipment can be communicated at any time, the working state of each valve block in a valve bank is controlled, oil can be supplied to the valve bank through a hydraulic pump and is output to a hydraulic motor, a hydraulic oil cylinder and impact equipment, the hydraulic oil cylinder is controlled to carry out rock drilling feeding operation, and synchronous operation of rock drilling feeding, rotation and impact can be realized; in the operation process, the internal pressure of the hydraulic oil cylinder and the impact equipment can be monitored in real time through a thirteenth oil port of the rock drilling speed proportional control valve, the variable of the hydraulic pump is controlled, the throttle area of the internal oil through of the valve core is changed by adjusting the push angle of an operating rod of the rock drilling speed proportional control valve, so that the flow of working ports for supplying the hydraulic oil cylinder and the impact equipment is adjusted, the advancing or retreating speed of the hydraulic oil cylinder is controllable and adjustable, the impact frequency and the impact pressure of the impact equipment are controllable and adjustable, through the automated inspection hydraulic motor, impact equipment, the pressure in hydraulic cylinder rodless chamber, confirm the control pressure of tertiary anti-sticking borer valves, thereby adjust and supply with for hydraulic motor, impact equipment, hydraulic cylinder's pressure and flow, thereby drilling construction's controllability control and intelligent degree to under the different work condition have been improved, improve the straightness in hole and the work efficiency of rock drilling, automatic identification card borer potential risk, and automatically, carry out anti-sticking borer control, effectively avoid the emergence of card borer, and the construction efficiency is improved, and the service life of increase equipment.
Drawings
Fig. 1 is a schematic structural diagram of a three-stage anti-jamming system for rock drilling control according to an embodiment of the present invention;
wherein: the hydraulic control system comprises a load-sensitive rock drilling multi-way valve, A2-overflow valve, A3-three-stage anti-sticking valve, a 4-overflow valve group, a 5-idle-strike prevention valve, a 6-anti-sticking valve, a 7-hydraulic motor, an 8-hydraulic oil cylinder, a 9-impact device, a 10-shuttle valve, a 1.1-first oil inlet valve, a 1.2-rotary reversing valve, a 1.3-second oil inlet valve, a 1.4-impact reversing valve, a 1.5-push reversing valve, a 1.6-oil inlet and return valve, a P-first oil port, a T-second oil port, a A1-third oil port, a B1-fourth oil port, a P1-fifth oil port, a P2-sixth oil port, a P3-seventh oil port, A3-eighth oil port, a B3-ninth oil port, A2-tenth oil port, a B2-eleventh oil port, an M-twelfth oil port, a Ls-thirteenth oil port, a B3-fourteenth oil port and a B2-fifteenth oil port.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Examples
The embodiment provides a three-level anti-jamming drill rod system for rock drilling control, which comprises the following components in percentage by weight as shown in fig. 1: a rock drilling control system and a three-stage anti-jamming system;
the rock drilling control system comprises a hydraulic pump, a hydraulic oil tank, a hydraulic oil cylinder 8, a control oil source valve, a hydraulic motor 7, an impact device 9, a load-sensitive rock drilling multi-way valve 1 and an anti-jamming drill rod valve group, wherein the hydraulic pump is respectively connected with a first oil port P and a fifth oil port P1, a sixth oil port P2 and a seventh oil port P3 of the load-sensitive rock drilling multi-way valve 1, the hydraulic oil tank is connected with a second oil port T of the rock drilling valve group, the impact device 9 is connected with an oil outlet of an air-tight drilling valve 5 of the anti-jamming drill rod valve group, an eighth oil port A3 and a ninth oil port B3 of the load-sensitive rock drilling multi-way valve 1 are respectively connected with a rodless cavity of the hydraulic oil cylinder 8 and a rod cavity of the hydraulic oil cylinder 8, a thirteenth oil port of the load-sensitive rock drilling multi-way valve 1 is connected with a load-sensitive feedback port of the hydraulic pump, a fourteenth oil port B3 and a fifteenth oil port B2 of the load-sensitive rock drilling valve 1 are connected with an oil outlet of the control oil source valve, the load-sensitive rock drilling multi-way valve 1 is externally connected with a tenth oil port A2 of the impact device 9, a forward rotation port A1 of the hydraulic motor 7, a reverse rotation device of the hydraulic motor 7, a fourth oil port B2 of the hydraulic motor 9 and a reverse rotation detection device of the twelve hydraulic oil port M2 of the impact device 9;
the three-stage anti-jamming system is provided with an overflow valve 2, an anti-idle-run valve 5, an anti-jamming valve 6, a three-stage anti-jamming valve 3, an overflow valve group 4 and a first oil inlet valve 1.1;
the tenth port A2 is connected to an oil inlet of the overflow valve 2, an oil inlet of the third-stage anti-sticking valve 3, and an oil inlet of the idle-sticking prevention valve 5, the second port T is connected to an oil return port of the overflow valve 2, an oil return port of the third-stage anti-sticking valve 3, an oil return port of the idle-sticking prevention valve 5, an oil return port of the overflow valve group 4, and an oil return port of the anti-sticking prevention valve 6, the eighth port A3 is connected to an oil inlet a of the anti-sticking prevention valve 6, a first oil inlet of the first oil inlet valve 1.1, a control port of the third anti-sticking valve 3, and an oil inlet of the overflow valve group 4, the third port A1 is connected to a control port of the idle-sticking prevention valve 6, the eleventh port B2 is connected to a control port of the overflow valve group 4, the ninth port B3 is connected to another oil inlet B of the anti-sticking valve 6, a second oil inlet of the first oil inlet valve 1.1, an oil outlet of the first oil inlet valve 1.1 is connected to a control port of the idle-sticking prevention valve 5, an external impact device 9 for an oil outlet of the idle-sticking prevention valve 5, an oil outlet of the hydraulic ram A4 of the anti-sticking prevention valve 6, and an external hydraulic ram 8 for another hydraulic ram 8 external hydraulic ram 4 with another external hydraulic ram cavity of the other hydraulic ram 4.
Specifically, the rock drilling control system is provided with a load-sensitive rock drilling multi-way valve 1, a first oil port P externally connected with a hydraulic pump, a second oil port T externally connected with a hydraulic oil tank, a third oil port A1 externally connected with a hydraulic rotary motor for forward rotation, a fourth oil port B1 externally connected with the hydraulic rotary motor for reverse rotation, a fifth oil port P1, a sixth oil port P2, a seventh oil port P3 externally connected with the hydraulic pump, an eighth oil port A3 connected with an oil inlet a of an anti-jamming valve, a ninth oil port B3 connected with an oil inlet B of the anti-jamming valve, a tenth oil port A2 externally connected with an impact device 9, an eleventh oil port B2 externally connected with the impact device 9 for pressure feedback, a twelfth oil port M for detecting total pressure of a propulsion oil cylinder and the impact device 9, a thirteenth oil port externally connected with a feedback port of the load-sensitive pump, a fourteenth oil port B3 externally connected with an oil source control Ls for fast propulsion and a fifteenth oil port B2 externally connected with the oil source control Ls for fast backward impact.
Specifically, a rock drilling speed proportional control system is provided with a load-sensitive rock drilling multi-way valve 1, the load-sensitive rock drilling multi-way valve 1 belongs to a flow distribution multi-way valve irrelevant to load pressure, the flow of each reversing valve in the multi-way valve is adjustable, the quantity, the load pressure and the flow of the reversing valves controlled simultaneously are irrelevant, the flow distribution is proportional to the demand of the flow distribution multi-way valve, a variable pump can be used, a fixed displacement pump can also be used, a double pump can also be used, one pump is used for a rotary circuit, and the other pump is used for an impact and propulsion oil circuit.
Specifically, the load-sensitive rock drilling multi-way valve 1 is characterized in that the three reversing valves are in a steel ball positioning manual operation mode, an operation control rod can be fixed at any position before the maximum stroke, and is provided with two fixed points, wherein the steel ball positioning fixed points impacting the reversing valves 1.4 are consistent in direction, and the two fixed points are arranged in the previous operation in the same direction.
The rock drilling control system and the three-level drill rod clamping prevention system are connected with external equipment and are provided with a plurality of pressure detection ports for being communicated with the pressure detection equipment, the working states of all valve blocks in the valve bank are controlled, oil is supplied to the valve bank through a hydraulic pump and is output to a hydraulic motor 7, a hydraulic oil cylinder 8 and an impact device 9, the hydraulic oil cylinder 8 is controlled to perform rock drilling feeding operation, and synchronous operation of rock drilling feeding, rotation and impact is controlled; in the operation process, the internal pressure of the hydraulic oil cylinder 8 and the impact equipment 9 is monitored in real time through a thirteenth oil port Ls of the rock drilling speed proportional control valve, the variable of the hydraulic pump is controlled, the throttle area of internal oil passing of the valve core is changed by adjusting the push angle of an operating rod of the rock drilling speed proportional control valve, the flow of working ports of the hydraulic oil cylinder 8 and the impact equipment 9 is controlled and adjusted, the advancing or retreating speed of the hydraulic oil cylinder 8 is controlled and adjusted, the impact frequency and the impact pressure of the impact equipment 9 are controlled and adjusted, the control pressure of the three-stage anti-jamming valve group is obtained by detecting the pressure of a rodless cavity of the hydraulic motor 7, the impact equipment 9 and the hydraulic oil cylinder 8, and the pressure and the flow supplied to the hydraulic motor 7, the impact equipment 9 and the hydraulic oil cylinder 8 are adjusted.
The three-stage anti-jamming valve consists of a two-position two-way reversing valve, two overflow valves 2 and a damper; the overflow valve group 4 consists of a two-position two-way reversing valve, two overflow valves 2 and a damper; the idle operation prevention valve 5 consists of a two-position three-way reversing valve, an overflow valve 2 and a damper; the anti-jamming valve consists of a two-position four-way reversing valve, a two-position two-way reversing valve, a one-way valve, four dampers and two overflow valves 2.
Wherein, the sensitive rock drilling multiple unit valve of load 1 includes: a first oil inlet valve, a rotary reversing valve 1.2, a second oil inlet valve 1.3, an impact reversing valve 1.4, a propulsion reversing valve 1.5 and an oil inlet and return valve 1.6;
the oil inlets of the first oil inlet valve and the oil inlet/return valve 1.6 are respectively connected with the oil inlets of unloading valve cores in respective valve plates, two oil inlets of the second oil inlet valve 1.3 are connected with the oil outlets of the oil inlet/return valve 1.6, the oil inlets of the impact reversing valve 1.4 and the propulsion reversing valve 1.5, the oil inlet of the rotary reversing valve 1.2 is connected with the oil outlet of the first oil inlet/return valve, the feedback oil path of the overpressure compensator of the rotary reversing valve 1.2 is connected with the main overflow valve 2 of the first oil inlet valve and the oil inlet of the speed regulating valve, the feedback oil path of the overpressure compensator of the impact reversing valve 1.4 and the feedback oil path of the overpressure compensator of the propulsion reversing valve 1.5 are connected with the main overflow valve 2 of the oil inlet/return valve 1.6 and the oil inlet of the speed regulating valve, the rotary reversing valve 1.2 is provided with two secondary overflow valves 2, the oil inlets of the secondary overflow valves 2 are connected with the working ports of the rotary reversing valve 1.2, the oil outlets of the overflow valves 2 and the unloading valve cores are communicated with each other and connected with a hydraulic oil tank.
Two reversing oil ports are arranged on the steel ball positioning cavities of the impact reversing valve 1.4 and the propulsion reversing valve 1.5 and are connected with an external control oil source, and the control oil source opens the push valve rod to reverse.
The oil inlet of a main overflow valve 2 of the three-level anti-jamming valve is connected with an oil outlet of a two-position two-way reversing valve, the oil inlet of a control overflow valve 2 is connected with a spring cavity of the two-position two-way reversing valve and is connected with an oil path of an oil control port passing through two damping holes, the control oil path passes through one damping hole and is connected with a reversing cavity of the two-position two-way reversing valve, the oil outlets of the two overflow valves 2 are connected with a hydraulic oil tank, and the three-level anti-jamming valve is provided with two pressure detection ports for detecting the pressure of the oil inlet.
The oil inlet of the high-push overflow valve 2 of the overflow valve group 4 is connected with the oil inlet, the reversing cavity of the two-position two-way reversing valve is connected with the oil way after the oil control port passes through the damping hole, the oil inlet of the low-push overflow valve 2 is connected with the oil outlet of the two-position two-way reversing valve, the spring cavities of the two overflow valves 2 and the two-position two-way reversing valve are connected with the hydraulic oil tank, and the overflow valve group 4 is provided with a pressure detection port for detecting the pressure of the oil inlet.
The reversing cavity of the two-position two-way reversing valve of the idle-fighting prevention valve 5 is connected with an oil way of which the control oil port passes through the damping hole, the oil outlet of the two-position two-way reversing valve is connected with the impact equipment 9, the spring cavity of the two-position two-way reversing valve and the oil return port of the two-position two-way reversing valve are connected with the hydraulic oil tank, and the reversing pressure of the two-position two-way reversing valve is adjustable.
The oil outlet of a two-position four-way reversing valve of the anti-jamming drill valve is connected with an oil inlet of the two-position two-way reversing valve and a spring cavity of a one-way valve, the other oil outlet of the two-position four-way reversing valve is connected with a rod cavity of a hydraulic oil cylinder 8, a reversing cavity of the two-position four-way reversing valve is connected with an oil way of which a control oil port passes through one damping hole, the spring cavity of the two-position four-way reversing valve is connected with an oil way of which the control oil port passes through two damping holes, the oil outlet of the two-position two-way reversing valve is connected with a rodless cavity of the hydraulic oil cylinder 8, the reversing cavity of the two-position two-way reversing valve is connected with an oil way of which the control oil port passes through two damping holes, the oil inlets of two overflow valves 2 are connected with oil ways of which the control oil port passes through two damping holes, the oil outlets of the two overflow valves 2 are connected with a hydraulic oil tank, and the reversing cavity of the one-way valve is connected with a rodless cavity of the hydraulic oil cylinder 8.
The anti-jamming drill valve is provided with two pressure detection ports for detecting the pressure of an oil inlet A, one pressure detection port for detecting the pressure of an oil inlet B, two pressure detection ports for detecting the pressure of a control oil port, one pressure detection port for detecting the pressure of a spring cavity of the two-position four-way reversing valve, one pressure detection port for detecting the pressure of the spring cavity of the two-position two-way reversing valve and one pressure detection port for detecting the pressure of an oil outlet of the two-position two-way reversing valve.
Specifically, in the working process, three operation rods are arranged on the load-sensitive rock drilling multi-way valve 1 and respectively control the working states of a hydraulic motor 7, a hydraulic oil cylinder 8 and an impact device 9 which are externally connected correspondingly, the working state of rock drilling is changed by pushing the operation rods on the load-sensitive rock drilling multi-way valve 1, when the operation rods are positioned at the middle position, the external device does not work, the external device starts to work along with the pushing of the operation rods, the larger the pushing amplitude of the operation rods is, the higher the working speed of the device is, the operation rods can be fixed at any position before the maximum stroke, two fixed points are arranged, and the flow output by a working port of the load-sensitive rock drilling multi-way valve 1 when the operation rods reach the fixed points can be set according to the actual working condition; the load-sensitive rock drilling multi-way valve 1 can simultaneously supply oil to working ports of a hydraulic motor 7, a hydraulic oil cylinder 8 and an impact device 9, and the flow is distributed according to a set proportion, so that synchronous operation of rock drilling feeding, rotation and impact can be realized, and the speed can be controlled and adjusted; wherein: the working linkage operating rod connected with the impact equipment 9 is operated only in one direction, when the certain distance is pushed, the distance can be adjusted according to requirements and the flow is constant, the eleventh oil port B2 does not work, the tenth oil port A2 works alone and the flow can be set according to requirements, the flow can be smaller than the flow in the maximum stroke, the working conditions such as the soft rock stratum are suitable for low-stroke, the working conditions such as the soft rock stratum are suitable for high-stroke when the working ports of the tenth oil port A2 and the eleventh oil port B2 work simultaneously after being pushed forwards, the tenth oil port A2 supplies oil to the impact equipment 9, and the eleventh oil port B2 controls the reversing of the two-position two-way valve of the overflow valve group 4.
The system improves the adjustability control and intelligent degree under different working conditions in the rock drilling construction process, improves the rock drilling working efficiency, reduces the number of handles or switches required to be operated, enables rotation, impact and propulsion to be linked under the rock drilling working condition through the three handles, and is adjustable in pressure and flow, so that the labor intensity of operators can be reduced, the service life of equipment can be prolonged, and the rock drilling speed and construction efficiency can be controlled.
The system is provided with a plurality of oil ports through a three-level anti-jamming drill rod system controlled by rock drilling, is connected with external equipment and is reserved with a pressure detection port, can be communicated with the pressure detection equipment at any time, controls the working state of each valve block in the valve bank, further can supply oil to the valve bank through a hydraulic pump, outputs the oil to a hydraulic motor, a hydraulic oil cylinder and impact equipment, controls the hydraulic oil cylinder to carry out rock drilling feeding operation, and can realize synchronous operation of rock drilling feeding, rotation and impact; the hydraulic oil cylinder and the impact equipment can be monitored in real time in the operation process through a thirteenth oil port of the rock drilling speed proportional control valve, the variable of a hydraulic pump is controlled, the throttle area of the internal oil through of the valve core is changed by adjusting the push angle of an operating rod of the rock drilling speed proportional control valve, the flow of a working port of the impact equipment and the speed of pushing or returning the hydraulic oil cylinder are controlled and adjusted, the impact frequency and the impact pressure of the impact equipment are controlled and adjusted, the control pressure of the three-level anti-jamming valve group is determined by automatically detecting the pressure of a hydraulic motor, the impact equipment and a rodless cavity of the hydraulic oil cylinder, the pressure and the flow of the hydraulic motor, the impact equipment and the hydraulic oil cylinder are adjusted and supplied, the adjustability control and the intelligent degree of rock drilling construction under different conditions are improved, the hole straightness and the rock drilling working efficiency are improved, the potential risk of jamming is automatically identified, the jamming prevention control is automatically performed, the jamming is effectively avoided, the construction efficiency is improved, and the service life of the equipment is prolonged.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (10)
1. A three-level drill rod clamping prevention system for controlling a rock drilling hole is characterized by comprising a rock drilling hole control system and a three-level drill rod clamping prevention system;
the rock drilling control system comprises a hydraulic pump, a hydraulic oil tank, a hydraulic oil cylinder (8), a control oil source valve, a hydraulic motor (7), an impact device (9), a load-sensitive rock drilling multi-way valve (1) and an anti-jamming valve group, wherein the hydraulic pump is respectively connected with a first oil port (P) and a fifth oil port (P1), a sixth oil port (P2) and a seventh oil port (P3) of the load-sensitive rock drilling multi-way valve (1), the hydraulic oil tank is connected with a second oil port (T) of the rock drilling valve group, the impact device (9) is connected with an oil port of an anti-idle-strike valve (5) of the anti-jamming valve group, an eighth oil port (A3) and a ninth oil port (B3) of the load-sensitive drilling multi-way valve (1) are respectively connected with a rodless cavity of the hydraulic oil cylinder (8) and a rod cavity of the hydraulic oil cylinder (8), a thirteenth oil port (Ls) of the load-sensitive drilling multi-way valve (1) is connected with a load-sensitive feedback port of the hydraulic pump, a fourteenth oil port (B3) and a fifteenth oil port (B2) of the load-sensitive drilling multi-way valve (1) are connected with an oil outlet of the control oil source valve, the load-sensitive drilling multi-way valve (1) is externally connected with a tenth oil port (A2) of the impact equipment (9), a third oil port (A1) of the hydraulic motor (7) in a forward rotation mode, a fourth oil port (B1) of the hydraulic motor (7) in a reverse rotation mode, an eleventh oil port (B2) for feeding back the pressure of the impact equipment (9) and a twelfth oil port (M) for detecting the total pressure of the hydraulic oil cylinder (8) and the impact equipment (9);
the three-stage anti-jamming system is provided with an overflow valve (2), an anti-idle-run valve (5), an anti-jamming valve (6), a three-stage anti-jamming valve (3), an overflow valve group (4) and a first oil inlet valve (1.1);
the tenth oil port (A2) is connected with an oil inlet of the overflow valve (2), an oil inlet of the tertiary anti-blocking valve (3) and an oil inlet of the idle-stop valve (5), the second oil port (T) is connected with an oil return port of the overflow valve (2), an oil return port of the three-stage anti-blocking valve (3), an oil return port of the idle-run valve (5), an oil return port of the overflow valve group (4) and an oil return port of the anti-blocking valve (6), the eighth oil port (A3) is connected with an oil inlet A of the anti-blocking valve (6), a first oil inlet of the first oil inlet valve (1.1), a control oil port of the third-stage anti-blocking valve (3) and an oil inlet of the overflow valve group (4), the third oil port (A1) is connected with a control oil port of the anti-sticking valve (6), the eleventh oil port (B2) is connected with a control oil port of the overflow valve group (4), the ninth oil port (B3) is connected with the other oil inlet B of the anti-sticking valve (6) and the second oil inlet of the first oil inlet valve (1.1), an oil outlet of the first oil inlet valve (1.1) is connected with a control port of the idle-run prevention valve (5), an oil outlet of the idle operation prevention valve (5) is externally connected with the impact equipment (9), an oil outlet A4 of the anti-sticking valve (6) is externally connected with a rodless cavity of the hydraulic oil cylinder (8), the other oil outlet B4 of the anti-sticking valve (6) is externally connected with a rod cavity of the hydraulic oil cylinder (8).
2. The three-level anti-jamming system for controlling the rock drilling hole according to claim 1, wherein the rock drilling hole control system and the three-level anti-jamming system are connected with external equipment and are provided with a plurality of pressure detection ports for communicating with pressure detection equipment, oil is supplied to the valve bank through the hydraulic pump by controlling the working state of each valve block in the valve bank, and the oil is output to the hydraulic motor (7), the hydraulic oil cylinder (8) and the impact equipment (9), so that the hydraulic oil cylinder (8) is controlled to perform rock drilling feeding operation, and rock drilling feeding, rotation and impact synchronous operation is controlled; in the working process, the internal pressure of the hydraulic oil cylinder (8) and the internal pressure of the impact equipment (9) are monitored in real time through a thirteenth oil port (Ls) of the rock drilling speed proportional control valve, the variable of the hydraulic pump is controlled, the throttle area of internal oil passing of a valve core is changed by adjusting the push angle of an operating rod of the rock drilling speed proportional control valve, the flow of a working port which is supplied to the hydraulic oil cylinder (8) and the flow of the impact equipment (9) are controlled and adjusted, the propelling or retreating speed of the hydraulic oil cylinder (8) is controlled and adjusted, the impact frequency and the impact pressure of the impact equipment (9) are controlled and adjusted, the control pressure of a three-level anti-jamming valve group is obtained by detecting the pressure of a rod-free cavity of the hydraulic motor (7), the impact equipment (9) and the hydraulic oil cylinder (8), and the pressure and the flow supplied to the hydraulic motor (7), the impact equipment (9) and the hydraulic oil cylinder (8) are adjusted.
3. A tertiary anti-jamming system for rock drilling control according to claim 1, characterized in that the tertiary anti-jamming valve consists of a two-position two-way directional valve, two said overflow valves (2) and a damper; the overflow valve group (4) consists of a two-position two-way reversing valve, two overflow valves (2) and a damper; the idle-run prevention valve (5) consists of a two-position three-way reversing valve, the overflow valve (2) and a damper; the anti-jamming valve consists of a two-position four-way reversing valve, a two-position two-way reversing valve, a one-way valve, four dampers and two overflow valves (2).
4. A three-stage anti-stuck drill system for rock drilling control according to claim 3, characterized in that the load-sensitive rock drilling multiple-way valve (1) comprises: a rotary reversing valve (1.2), a second oil inlet valve (1.3), an impact reversing valve (1.4), a propulsion reversing valve (1.5) and an oil inlet and return valve (1.6);
the oil inlet of the first oil inlet valve and the oil inlet of the oil inlet/return valve (1.6) are respectively connected with the oil inlet of the unloading valve core inside the valve block, two oil inlets of the second oil inlet valve (1.3) are connected with the oil outlet of the oil inlet/return valve (1.6) and the oil inlet of the impact reversing valve (1.4) and the oil inlet of the propulsion reversing valve (1.5), the oil inlet of the rotation reversing valve (1.2) is connected with the oil outlet of the first oil inlet valve, the feedback oil way of the pressure compensator of the rotation reversing valve (1.2) is connected with the main overflow valve (2) of the first oil inlet valve and the oil inlet of the speed regulating valve, the feedback oil way of the pressure compensator of the propulsion reversing valve (1.5) is connected with the main overflow valve (2) of the oil inlet/return valve (1.6) and the oil inlet of the speed regulating valve, the rotation reversing valve (1.2) is provided with two secondary overflow valves (2), the oil inlets of the secondary overflow valve (2) are connected with the working port of the rotation reversing valve (1.2), the unloading valve core (2) is connected with the hydraulic oil tank, and the unloading oil tank, and the hydraulic oil tank are connected with the unloading valve core and the hydraulic oil tank, and the hydraulic oil tank.
5. The three-stage drill rod clamping prevention system for rock drilling control according to claim 4, wherein two reversing oil ports are arranged on the steel ball positioning cavities of the impact reversing valve (1.4) and the push reversing valve (1.5) and are connected with an externally connected control oil source, and the control oil source opens a push valve rod to reverse.
6. The three-stage anti-jamming system for rock drilling control according to claim 4, wherein an oil inlet of a main overflow valve (2) of the three-stage anti-jamming valve is connected with an oil outlet of a two-position two-way reversing valve, the oil inlet of the overflow valve (2) is controlled to be connected with a spring cavity of the two-position two-way reversing valve and connected with an oil path of an oil control port passing through two damping holes, the control oil path is connected with a reversing cavity of the two-position two-way reversing valve after passing through one damping hole, oil outlets of the two overflow valves (2) are connected with a hydraulic oil tank, and the three-stage anti-jamming valve is provided with two pressure detection ports for detecting the pressure of the oil inlet.
7. The three-stage drill rod clamping prevention system for rock drilling control according to claim 4, wherein an oil inlet of a high-push overflow valve (2) of the overflow valve group (4) is connected with an oil inlet, a reversing cavity of a two-position two-way reversing valve is connected with an oil way of an oil control port passing through a damping hole, an oil inlet of a low-push overflow valve (2) is connected with an oil outlet of the two-position two-way reversing valve, spring cavities of the two overflow valves (2) and the two-position two-way reversing valve are connected with a hydraulic oil tank, and the overflow valve group (4) is provided with a pressure detection port for detecting the pressure of the oil inlet.
8. The three-stage drill rod clamping prevention system for rock drilling control according to claim 4, wherein a reversing cavity of a two-position two-way reversing valve of the idle-strike prevention valve (5) is connected with an oil path after a control oil port passes through a damping hole, an oil outlet of the two-position two-way reversing valve is connected with an impact device (9), a spring cavity of the two-position two-way reversing valve and an oil return port of the two-position two-way reversing valve are connected with a hydraulic oil tank, and the reversing pressure of the two-position two-way reversing valve is adjustable.
9. The three-stage drill hole control anti-jamming system according to claim 4, wherein an oil outlet of a two-position four-way reversing valve of the anti-jamming drill valve is connected with an oil inlet of the two-position two-way reversing valve and a spring cavity of a one-way valve, the other oil outlet of the two-position four-way reversing valve is connected with a rod cavity of the hydraulic oil cylinder (8), a reversing cavity of the two-position four-way reversing valve is connected with an oil way of which a control oil port passes through one damping hole, a spring cavity of the two-position four-way reversing valve is connected with an oil way of which the control oil port passes through two damping holes, an oil outlet of the two-position two-way reversing valve is connected with a rodless cavity of the hydraulic oil cylinder (8), a reversing cavity of the two-position two-way reversing valve is connected with an oil way of which the control oil port passes through one damping hole, a spring cavity of the two-position two-way reversing valve is connected with an oil way of which the control oil port passes through two damping holes, oil inlets of two overflow valves (2) are connected with an oil way of which the control oil ports pass through two damping holes, oil outlets are connected with a hydraulic oil tank, and a reversing cavity of the one-way valve is connected with a rodless cavity of the hydraulic oil cylinder (8).
10. The three-stage drill rod clamping prevention system for rock drilling control according to claim 4, wherein the drill rod clamping prevention valve is provided with two pressure detection ports for detecting the pressure of the oil inlet A, one pressure detection port for detecting the pressure of the oil inlet B, two pressure detection ports for detecting the pressure of the control oil port, one pressure detection port for detecting the pressure of the spring cavity of the two-position four-way reversing valve, one pressure detection port for detecting the pressure of the spring cavity of the two-position two-way reversing valve, and one pressure detection port for detecting the pressure of the oil outlet of the two-position two-way reversing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211603183.7A CN115711087A (en) | 2022-12-14 | 2022-12-14 | Tertiary anti-sticking borer system of rock drilling control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211603183.7A CN115711087A (en) | 2022-12-14 | 2022-12-14 | Tertiary anti-sticking borer system of rock drilling control |
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| CN115711087A true CN115711087A (en) | 2023-02-24 |
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| CN202211603183.7A Pending CN115711087A (en) | 2022-12-14 | 2022-12-14 | Tertiary anti-sticking borer system of rock drilling control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118346679A (en) * | 2024-06-17 | 2024-07-16 | 江苏汇智高端工程机械创新中心有限公司 | Direction control valve, hydraulic system and engineering machinery |
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2022
- 2022-12-14 CN CN202211603183.7A patent/CN115711087A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118346679A (en) * | 2024-06-17 | 2024-07-16 | 江苏汇智高端工程机械创新中心有限公司 | Direction control valve, hydraulic system and engineering machinery |
| CN118346679B (en) * | 2024-06-17 | 2024-10-29 | 江苏汇智高端工程机械创新中心有限公司 | Direction control valve, hydraulic system and engineering machinery |
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