CN117787004A - Multi-gear-based rock drilling parameter automatic matching method, system and storage medium - Google Patents
Multi-gear-based rock drilling parameter automatic matching method, system and storage medium Download PDFInfo
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Abstract
The invention discloses a method, a system and a storage medium for automatically matching rock drilling parameters based on multistage gears, wherein the method comprises the following steps: setting working parameters of the rock drill with a plurality of gears according to surrounding rock grades, wherein the working parameters of the rock drill comprise impact pressure, propelling pressure, rotating pressure and rotating speed; in the initial stage of rock drilling, selecting working parameters of the rock drilling machine in corresponding gears according to surrounding rock grades, and starting rock drilling; in the rock drilling process, the real-time propelling pressure and the real-time rotating speed are collected, the propelling coefficient and the rotating coefficient are calculated according to the real-time propelling pressure and the real-time rotating speed, and gear adjustment is carried out according to the propelling coefficient and the propelling coefficient. The invention relates to the field of rock drilling, which can solve the problems of low construction drilling efficiency and incapability of normal drilling caused by unfamiliar equipment and low construction professional skills of operators, and the consumption of drill accessories such as broken drill rod, damaged drill bit, broken drill shank and the like caused by improper parameter adjustment.
Description
Technical Field
The invention relates to the technical field of rock drilling construction, in particular to a multistage gear-based rock drilling parameter automatic matching method, a system and a storage medium.
Background
The drill jumbo is widely applied to tunnel construction engineering under various geological conditions such as railway, highway, mine, water conservancy and the like. The drilling parameter debugging process of the drilling jumbo is critical to efficient operation in the subsequent construction process. The existing drilling parameters of the drilling jumbo are usually debugged by adopting in-factory simulated surrounding rock (cement blocks or tool simulation), so that the defects that the working condition of load simulation is single and surrounding rock information cannot be truly reflected exist, and the drilling parameters obtained after debugging cannot be suitable for the actual construction process. In the actual construction process, the drilling jumbo faces various working conditions, parameters determined by adopting simulation debugging cannot adapt to on-site construction drilling, and effective guidance cannot be provided for setting drilling parameters;
the working parameters of the existing rock drilling trolley rock drilling machine adopt a general parameter preset before delivery, and the method is suitable for the construction of better medium-hardness rock of a rock stratum; the method comprises the steps that an operator is required to adjust preset values of the pushing pressure and the impact pressure of the rock drill according to specific conditions of a construction site, and parameters of the rock drill working parameters during drilling and the rock drill working parameters during drilling of different rock strata are required to be set; the operator needs to be familiar with the equipment to a high degree, has higher professional skill on rock drilling construction to match proper working parameters of the rock drilling machine, so that the rock drilling machine can perform high-efficiency construction and the consumption of fittings of the rock drilling machine is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a multistage gear-based automatic rock drilling parameter matching method, a multistage gear-based automatic rock drilling parameter matching system and a storage medium, which can adaptively adjust the working parameters of a rock drilling machine, thereby solving the problems of low construction drilling efficiency, incapability of drilling normally and the like caused by improper parameter adjustment of operators.
In order to achieve the above purpose, the invention provides an automatic matching method for rock drilling parameters based on multi-stage gears, which sets working parameters of the rock drilling machine with a plurality of gears according to surrounding rock grades, wherein the working parameters of the rock drilling machine comprise impact pressure, propelling pressure, rotating pressure and rotating speed;
the rock drilling parameter automatic matching method comprises the following steps:
in the initial stage of rock drilling, selecting working parameters of the rock drilling machine in corresponding gears according to surrounding rock grades, and starting rock drilling;
and in the rock drilling process, collecting real-time propelling pressure and real-time rotating speed, calculating a propelling coefficient and a rotating coefficient according to the real-time propelling pressure and the real-time rotating speed, and adjusting gears according to the propelling coefficient and the propelling coefficient.
In one embodiment, the gear is divided into five gears, which are respectively:
1 grade, corresponding I grade surrounding rock, rock drill operating parameter is: p (P) 1 ＝170、P 2 ＝69、P 3 ＝60、ω＝227；
2 grades, corresponding to II grades of surrounding rocks, the working parameters of the rock drill are as follows: p (P) 1 ＝175、P 2 ＝74、P 3 ＝60、ω＝217；
3 grades, corresponding III grades of surrounding rocks, wherein the working parameters of the rock drill are as follows: p (P) 1 ＝180、P 2 ＝81、P 3 ＝60、ω＝207；
4 grades, corresponding IV grades surrounding rock, the rock drill working parameters are: p (P) 1 ＝190、P 2 ＝103、P 3 ＝60、ω＝186；
5 grades, corresponding to V grades of surrounding rocks, the working parameters of the rock drill are as follows: p (P) 1 ＝200、P 2 ＝144、P 3 ＝60、ω＝165；
Wherein P is 1 For impact pressure, P 2 To boost the pressure, P 3 For rotational pressure, ω is rotational speed.
In one embodiment, the calculation process of the propulsion coefficient and the rotation coefficient is as follows:
k 1 ＝P 2 /P 20
k 2 ＝ω/W
wherein k is 1 To be the propulsion coefficient, P 20 For real-time propulsionForce, k 2 And W is the real-time rotation speed.
In one embodiment, the step of adjusting the gear according to the propulsion coefficient and the propulsion coefficient includes:
if k 1 ∈(1.2,1.6]、k 2 E [0.8,0.9), then adjusting to gear 1;
if k 1 ∈(1.0,1.2]、k 2 E [0.9, 1.0), then adjust to gear 2;
if k 1 ∈(0.9,1.0]、k 2 E [1.0,1.1), then adjusting to 3;
if k 1 ∈(0.8,0.9]、k 2 E [1.1,1.15), then adjusting to gear 4;
if k 1 ∈(0.7,0.9]、k 2 E [1.15,1.2), then to gear 5.
In one embodiment, during the rock drilling process, real-time rotation pressure is collected, a rotation pressure adjusting coefficient is obtained by calculation based on the real-time rotation pressure, and then self-adaptive adjustment of the propelling pressure is carried out according to the rotation pressure adjusting coefficient.
In one embodiment, the calculation process of the rotation pressure adjustment coefficient is as follows:
k 3 ＝1-(P 30 -P 0 )/P 0
wherein k is 3 For rotating the pressure adjustment coefficient, P 30 For real-time rotation pressure, P 0 Is the rotational base pressure.
In one embodiment, the process of adaptively adjusting the propulsion pressure according to the rotation pressure adjustment coefficient adjustment is as follows:
if 0.8<k 3 If the pressure is less than or equal to 1.2, the propulsion pressure is regulated until k 3 >1.2；
If 0.7<k 3 The propelling pressure is reduced to 0 if the propelling pressure is less than or equal to 0.8;
if k 3 And if the temperature is less than or equal to 0.7, starting the anti-seizing action.
In one embodiment, during the rock drilling process, the real-time drilling speed of the rock drill is collected, and the drilling speed adjusting coefficient is calculated, which is that:
k 4 ＝1-(V 0 -V)/V
wherein k is 4 For the drilling speed adjusting coefficient, V is the set drilling speed, V 0 Is the real-time drilling speed;
if k 4 <1, the current propelling pressure is not regulated;
if 1 is less than or equal to k 4 <1.3, the current propulsion pressure is adjusted to k 4 <1；
If k 4 And (3) not less than 1.3, and reducing the first gear on the basis of the current gear.
In order to achieve the above object, the present invention further provides an automatic rock drilling parameter matching system based on a multi-stage gear, including:
a memory for storing a program;
and a processor for executing the program stored in the memory, the processor being configured to perform some or all of the steps of the method as described above when the program is executed.
To achieve the above object, the present invention also provides a computer-readable storage medium having stored therein computer-executable instructions; the computer-executable instructions, when executed by a processor, perform some or all of the steps of the method as described above.
Compared with the prior art, the invention has the following beneficial technical effects:
the method and the device can select gears according to surrounding rock property conditions of a construction site, adaptively adjust working parameters of the rock drill, solve the problems that construction drilling efficiency is low and drilling cannot be normally carried out due to the fact that an operator is unfamiliar with equipment, the professional skill of drilling construction is low and proper working parameters of the rock drill cannot be matched quickly, and drill rod breakage, drill bit damage, drill shank breakage and other rock drill accessory consumption are caused by improper parameter adjustment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for automatically matching rock drilling parameters based on multiple gear steps in embodiment 1 of the invention
Fig. 2 is a block diagram of a system for automatically matching rock drilling parameters based on multiple gear steps in embodiment 2 of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
Example 1
The embodiment discloses a rock drilling parameter automatic matching method based on multistage gears, which comprises the steps of firstly setting working parameters of a rock drilling machine with a plurality of gears according to surrounding rock grades, wherein the working parameters of the rock drilling machine comprise impact pressure, propelling pressure, rotating pressure and rotating speed.
And in the initial stage of rock drilling, selecting the working parameters of the rock drilling machine in the corresponding gear according to the surrounding rock grade, and starting rock drilling. In the rock drilling process, collecting real-time propelling pressure and real-time rotating speed, calculating a propelling coefficient and a rotating coefficient according to the real-time propelling pressure and the real-time rotating speed, and matching the propelling coefficient and the rotating coefficient obtained by real-time calculation with a pre-constructed parameter database to perform self-adaptive adjustment of the rock drilling gear;
in the rock drilling process, the real-time rotation pressure and the real-time propelling speed are collected, the rotation pressure adjusting coefficient and the drilling speed adjusting coefficient are calculated according to the real-time rotation pressure and the real-time propelling speed, and then the rotation pressure adjusting coefficient and the drilling speed adjusting coefficient which are obtained through real-time calculation are matched with a pre-constructed parameter database to carry out self-adaptive adjustment on working parameters of the rock drilling machine.
Referring to fig. 1, after the automatic matching method of drilling parameters based on multiple gear steps in this embodiment is adopted, the drilling process is:
firstly, selecting working parameters of a rock drilling machine with corresponding gears according to surrounding rock grades, and automatically starting rock drilling;
then, data acquisition is carried out, wherein the data acquisition comprises real-time propelling pressure, real-time rotating speed, real-time rotating pressure and real-time propelling speed, and the propelling coefficient, the rotating pressure regulating coefficient and the drilling speed regulating coefficient are calculated in real time
Finally, two paths are parallel:
one path uses the pushing coefficient and the rotation coefficient to match the parameter database to carry out self-adaptive adjustment of the rock drilling gear, and carries out control output;
and the other path uses the rotation pressure adjusting coefficient and the drilling speed adjusting coefficient to match the parameter database to carry out self-adaptive adjustment on working parameters of the rock drilling machine, and carries out control output.
In this embodiment, the gear of rock drilling is divided into five gears, which are respectively:
1 grade, corresponding I grade surrounding rock, rock drill working parameters are: p (P) 1 ＝170、P 2 ＝69、P 3 ＝60、ω＝227；
2 grades, corresponding to II grades of surrounding rocks, the working parameters of the rock drill are as follows: p (P) 1 ＝175、P 2 ＝74、P 3 ＝60、ω＝217；
3 grades, corresponding III grades of surrounding rocks, the working parameters of the rock drill are as follows: p (P) 1 ＝180、P 2 ＝81、P 3 ＝60、ω＝207；
4 grades, corresponding IV grades of surrounding rocks, the working parameters of the rock drill are as follows: p (P) 1 ＝190、P 2 ＝103、P 3 ＝60、ω＝186；
5 grades, corresponding to V grade surrounding rock, the working parameters of the rock drill are as follows: p (P) 1 ＝200、P 2 ＝144、P 3 ＝60、ω＝165；
Wherein P is 1 For impact pressure, P 2 To boost the pressure, P 3 For rotational pressure, ω is rotational speed.
In the specific implementation process, the calculation process of the propelling pressure is as follows:
F＝(F max -F min )×(P 1 -F min )/(I max -I min )+F min
wherein R is the radius of the drilling oil cylinder, R 1 For drilling the radius of the cylinder piston rod, F is the propelling force, F max 、F min For maximum and minimum values of drilling propulsion force, I max 、I min The drilling impact pressure is the maximum value and the minimum value;
the calculation process of the rotation speed omega of the rock drill is as follows:
ω＝f·60·R 2 /[3.14·(R 3 -R 2 )]
wherein f is the working frequency of the rock drill, R 2 For the outer diameter of the bit teeth, R 3 Is the outer diameter of the drill bit.
In this embodiment, the adaptive adjustment of the drilling gear is performed by:
first, the thrust coefficient and the rotation coefficient are calculated as:
k 1 ＝P 2 /P 20
k 2 ＝ω/W
wherein k is 1 To be the propulsion coefficient, P 20 To advance pressure in real time, k 2 The rotation coefficient is W, and the real-time rotation speed is W;
then the propulsion coefficient k is calculated in real time 1 Coefficient of rotation k 2 According to the gear switching threshold value preset in the parameter database, when the propulsion coefficient k 1 Coefficient of rotation k 2 And when the gear switching threshold value is reached, gear shifting adjustment is carried out on the rock drilling gear, and specifically:
if k 1 ∈(1.2,1.6]、k 2 E [0.8,0.9), then adjust to gear 1;
if k 1 ∈(1.0,1.2]、k 2 E [0.9, 1.0), then adjust to gear 2;
if k 1 ∈(0.9,1.0]、k 2 E [1.0,1.1), then adjust to 3;
if k 1 ∈(0.8,0.9]、k 2 E [1.1,1.15), then adjust to 4;
if k 1 ∈(0.7,0.9]、k 2 E [1.15,1.2), then adjust to 5.
Preferably, the system can collect drilling speed, propelling pressure, rotating pressure, impact pressure, cleaning water pressure, air pressure and other working parameters of the rock drill in real time through the installed sensor during the construction of the rock drill, then analyze according to the collected real-time data, and simultaneously perform pre-judging calculation with the data of set pressure, drilling speed of the rock drill and the like, and control through an algorithm to serve as an adjusting output basis.
In this embodiment, the adaptive adjustment of working parameters of the rock drill comprises the following steps:
first, a rotation pressure adjustment coefficient and a drilling rate adjustment coefficient are calculated as:
k 3 ＝1-(P 30 -P 0 )/P 0
k 4 ＝1-(V 0 -V)/V
wherein k is 3 For rotating the pressure adjustment coefficient, P 30 For real-time rotation pressure, P 0 To rotate the base pressure, k 4 For the drilling speed adjusting coefficient, V is the set drilling speed, V 0 Is the real-time drilling speed;
then the rotation pressure adjustment coefficient k is obtained through real-time calculation 3 Drilling speed adjustment coefficient k 4 When the rotation pressure is adjusted by a coefficient k according to a parameter adjustment threshold value preset in a parameter database 3 Drilling speed adjustment coefficient k 4 When the parameter adjustment threshold is reached, the working parameters of the rock drill are adaptively adjusted, and specifically:
if 0.8<k 3 If the pressure is less than or equal to 1.2, the propulsion pressure is regulated until k 3 >1.2；
If 0.7<k 3 The propelling pressure is reduced to 0 if the propelling pressure is less than or equal to 0.8;
if k 3 If the temperature is less than or equal to 0.7, starting the anti-seizing action;
if k 4 <1, the current propelling pressure is not regulated;
if 1 is less than or equal to k 4 <1.3, the current propulsion pressure is adjusted to k 4 <1；
If k 4 And (3) not less than 1.3, and reducing the first gear on the basis of the current gear.
Taking class III surrounding rock 45 drill bit construction as an example, 3 gears are selected at an operation interface, the outer diameter of the drill bit is 45, and the tooth pitch is 8, so that the automatic parameters selected by the system are as follows: p (P) 1 ＝180bar、P 2 ＝81bar、P 3 =60 bar, ω=207 r/m. When the system detects that the rotation pressure continuously rises to 65bar in the rock drilling process, the pushing pressure is automatically reduced to 74bar so as to ensure that the rotation pressure is normal; when the rotation pressure continuously rises to be more than 72bar, the system starts the pre-drill clamping function to stop the forward pushing pressure of the rock drill, and when the rotation pressure continuously rises to be more than 78bar, the system starts the anti-drill clamping function to execute the action of the back rock drill; the drilling speed in the rock drilling process can not reach the normal drilling speed continuously (the calibration V=1.5m/min after the on-site construction data acquisition and analysis), and when the real-time drilling speed V 0 Below 1m/min the system adjusts from first gear up to gear II.
In summary, the automatic matching method for rock drilling parameters based on multi-stage gear in the embodiment can select gear according to surrounding rock property conditions of a construction site, adaptively adjust working parameters of a rock drilling machine, and solve the problems that an operator is unfamiliar with equipment, cannot quickly match proper rock drilling machine working parameters due to low technical skills in rock drilling construction, and cannot normally drill due to low construction drilling efficiency, broken drill rod, damaged drill bit, broken drill shank and other rock drilling machine accessories due to improper parameter adjustment.
Example 2
Fig. 2 shows an automatic matching system for rock drilling parameters based on multiple gear steps according to the present embodiment, which includes a transmitter, a receiver, a memory and a processor. The transmitter is used for transmitting instructions and data, the receiver is used for receiving instructions and data, the memory is used for storing computer-executable instructions, and the processor is used for executing the computer-executable instructions stored in the memory so as to realize part or all of the steps executed by the automatic matching method of rock drilling parameters based on the multistage gears in the embodiment 1. The specific implementation procedure is the same as that of the foregoing embodiment 1.
It should be noted that the memory may be separate or integrated with the processor. When the memory is provided separately, the terminal device further comprises a bus for connecting the memory and the processor.
Example 3
The present embodiment discloses a computer readable storage medium, in which computer executable instructions are stored, and when a processor executes the computer executable instructions, part or all of the steps executed by the automatic matching of rock drilling parameters based on multiple gear steps in the above embodiment 1 are implemented.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. The automatic matching method for rock drilling parameters based on the multistage gears is characterized in that rock drilling working parameters of a plurality of gears are set according to surrounding rock grades, wherein the rock drilling working parameters comprise impact pressure, propelling pressure, rotating pressure and rotating speed;
the rock drilling parameter automatic matching method comprises the following steps:
in the initial stage of rock drilling, selecting working parameters of the rock drilling machine in corresponding gears according to surrounding rock grades, and starting rock drilling;
and in the rock drilling process, collecting real-time propelling pressure and real-time rotating speed, calculating a propelling coefficient and a rotating coefficient according to the real-time propelling pressure and the real-time rotating speed, and adjusting gears according to the propelling coefficient and the propelling coefficient.
2. The automatic matching method of rock drilling parameters based on multi-stage gears according to claim 1, wherein the gears are divided into five gears, respectively:
1 grade, corresponding I grade surrounding rock, rock drill operating parameter is: p (P) 1 ＝170、P 2 ＝69、P 3 ＝60、ω＝227；
2 grades, corresponding to II grades of surrounding rocks, the working parameters of the rock drill are as follows: p (P) 1 ＝175、P 2 ＝74、P 3 ＝60、ω＝217；
3 grades, corresponding III grades of surrounding rocks, wherein the working parameters of the rock drill are as follows: p (P) 1 ＝180、P 2 ＝81、P 3 ＝60、ω＝207；
4 grades, corresponding IV grades surrounding rock, the rock drill working parameters are: p (P) 1 ＝190、P 2 ＝103、P 3 ＝60、ω＝186；
5 grades, corresponding to V grades of surrounding rocks, the working parameters of the rock drill are as follows: p (P) 1 ＝200、P 2 ＝144、P 3 ＝60、ω＝165；
Wherein P is 1 For impact pressure, P 2 To boost the pressure, P 3 For rotational pressure, ω is rotational speed.
3. The automatic matching method of rock drilling parameters based on multi-stage gears according to claim 2, wherein the calculation process of the propulsion coefficient and the rotation coefficient is:
k 1 ＝P2/P 20
k 2 ＝ω/W
wherein k is 1 To be the propulsion coefficient, P 20 To advance pressure in real time, k 2 And W is the real-time rotation speed.
4. A method for automatically matching rock drilling parameters based on multiple gear steps according to claim 3, wherein the step of adjusting the gear steps according to the thrust coefficient and the thrust coefficient comprises:
if k 1 ∈(1.2,1.6]、k 2 E [0.8,0.9), then adjusting to gear 1;
if k 1 ∈(1.0,1.2]、k 2 E [0.9, 1.0), then adjust to gear 2;
if k 1 ∈(0.9,1.0]、k 2 E [1.0,1.1), then adjusting to 3;
if k 1 ∈(0.8,0.9]、k 2 E [1.1,1.15), then adjusting to gear 4;
if k 1 ∈(0.7,0.9]、k 2 E [1.15,1.2), then to gear 5.
5. The automatic multistage gear-based rock drilling parameter matching method according to any one of claims 1 to 4, wherein real-time rotation pressure is collected during rock drilling, a rotation pressure adjustment coefficient is calculated based on the real-time rotation pressure, and self-adaptive adjustment of the propelling pressure is performed according to the rotation pressure adjustment coefficient.
6. The automatic matching method of rock drilling parameters based on multi-stage gears according to claim 5, wherein the calculation process of the rotation pressure adjustment coefficient is as follows:
k 3 ＝1-(P 30 -P 0 )/P 0
wherein k is 3 For rotating the pressure adjustment coefficient, P 30 For real-time rotation pressure, P 0 Is the rotational base pressure.
7. The automatic matching method of rock drilling parameters based on multi-stage gears according to claim 5, wherein the process of adaptively adjusting the propulsion pressure according to the rotation pressure adjustment coefficient is:
if 0.8<k 3 If the pressure is less than or equal to 1.2, the propulsion pressure is regulated until k 3 >1.2；
If 0.7<k 3 The propelling pressure is reduced to 0 if the propelling pressure is less than or equal to 0.8;
if k 3 And if the temperature is less than or equal to 0.7, starting the anti-seizing action.
8. The automatic matching method of rock drilling parameters based on multi-stage gear according to any one of claims 1 to 4, wherein during the rock drilling, the real-time drilling rate of the rock drill is collected, and the drilling rate adjustment coefficient is calculated as:
k 4 ＝1-(V 0 -V)/V
wherein k is 4 For the drilling speed adjusting coefficient, V is the set drilling speed, V 0 Is the real-time drilling speed;
if k 4 <1, the current propelling pressure is not regulated;
if 1 is less than or equal to k 4 <1.3, the current propulsion pressure is adjusted to k 4 <1；
If k 4 And (3) not less than 1.3, and reducing the first gear on the basis of the current gear.
9. An automatic rock drilling parameter matching system based on multistage gears, which is characterized by comprising:
a memory for storing a program;
a processor for executing the program stored in the memory, the processor being adapted to perform part or all of the steps of the method according to any one of claims 1 to 8 when the program is executed.
10. A computer-readable storage medium having stored therein computer-executable instructions; the computer-executable instructions, when executed by a processor, are for performing part or all of the steps of the method of any one of claims 1 to 8.
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