CN114714517A - Circular sawing machine for cutting stone and control method thereof - Google Patents
Circular sawing machine for cutting stone and control method thereof Download PDFInfo
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- CN114714517A CN114714517A CN202210214705.8A CN202210214705A CN114714517A CN 114714517 A CN114714517 A CN 114714517A CN 202210214705 A CN202210214705 A CN 202210214705A CN 114714517 A CN114714517 A CN 114714517A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/005—Devices for the automatic drive or the program control of the machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a circular sawing machine for cutting stone, which comprises a device main body; the device main body comprises a cutting mechanism and a bearing mechanism for bearing the cutting mechanism; the bearing mechanism comprises a bearing seat and a movable wheel set positioned below the bearing seat; the device body further comprises a control mechanism; the control mechanism comprises a first driving device for driving the moving wheel set to move; the movable wheel set comprises a first wheel set and a second wheel set matched with the first wheel set; the first driving device also comprises a first driving motor for driving the first wheel set to rotate and a second driving motor for driving the second wheel set to rotate; the control mechanism also comprises a walking variable-frequency driver connected with the first driving motor and the second driving motor and a controller connected with the walking variable-frequency driver. The controller controls the walking driving frequency converter to control, the output frequency of the walking driving frequency converter is adjusted, the feeding rate of the moving wheel set is adjusted to adapt to cutting of parts with different hardness, and the electric energy utilization efficiency is improved.
Description
Technical Field
The invention relates to the technical field of stone mining machinery, in particular to a circular sawing machine for cutting stone and a control method thereof.
Background
Cutting devices commonly used for cutting hard materials, such as stone in the mining industry, are cutting implements with annular cutters, typically of the type such as band saws, chain saws, rope saws and circular saws. The double-disc saw is provided with a walking structure so as to drive the disc saw to efficiently cut the two parallel sides of the stone along a route defined by a preset track, and the circular saw is enabled to cut the stone forwards at a constant speed by setting a fixed walking speed in the prior art; however, as for the stone, the hardness of the stone itself at different positions may be different; if the part with high cutting hardness needs to walk slowly, the circular saw has longer cutting time; if the part with lower hardness is cut, the walking speed can be increased, and the cutting efficiency is improved; compared with uniform cutting, the self-adaptive cutting device has the advantages that the walking speed is adjusted in a self-adaptive mode according to the hardness change of the stone, the waste of electric energy can be reduced, and the cutting efficiency is improved.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide a circular saw machine for cutting stone, which can adaptively adjust the walking speed so as to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a circular sawing machine for cutting stone comprises a device main body; the device main body comprises a cutting mechanism and a bearing mechanism for bearing the cutting mechanism; the bearing mechanism comprises a bearing seat and a movable wheel set positioned below the bearing seat; the device body further comprises a control mechanism; the control mechanism comprises a first driving device for driving the moving wheel set to move; the movable wheel set comprises a first wheel set and a second wheel set matched with the first wheel set; the first driving device also comprises a first driving motor for driving the first wheel set to rotate and a second driving motor for driving the second wheel set to rotate; the control mechanism also comprises a walking variable-frequency driver connected with the first driving motor and the second driving motor and a controller connected with the walking variable-frequency driver.
The cutting mechanism comprises a shell and a saw blade mounting seat which is rotationally connected with the shell and is used for mounting a saw blade; the saw blade mounting seat comprises a first clamping seat and a second clamping seat which are respectively positioned at two sides of the shell; the control mechanism further comprises a third driving motor for driving the first clamping seat to rotate and a fourth driving motor for driving the second clamping seat to rotate.
The control mechanism further comprises a cutting control assembly; the cutting control assembly comprises a first variable frequency drive connected with a third drive motor and a second variable frequency drive connected with a fourth drive motor.
The controller is respectively connected with the walking variable-frequency driver, the first variable-frequency driver and the second variable-frequency driver.
The controller comprises a touch display screen and an intermediate relay.
The control mechanism further comprises a first oil cylinder for driving the first clamping seat to stretch outwards and a second oil cylinder for driving the second clamping seat to stretch outwards.
The cutting mechanism also comprises a guide rod which is positioned on the bearing seat and is vertically arranged; the shell is connected with the guide rod in a sliding manner; the control mechanism further comprises a third oil cylinder for driving the shell to move up and down along the guide rod.
The first wheel set comprises two first wheel bodies and two second wheel bodies, and the rotation directions of the two second wheel bodies are perpendicular to the first wheel bodies; the second wheel set comprises two third wheel bodies and two fourth wheel bodies, and the rotation directions of the fourth wheel bodies are perpendicular to the third wheel bodies; the second driving device further comprises a fourth oil cylinder, a fifth oil cylinder, a sixth oil cylinder and a seventh oil cylinder which are arranged at four corners of the bearing seat.
The control mechanism also comprises a hydraulic station oil pump and an oil pump main control module for controlling the hydraulic station oil pump; the hydraulic station oil pump is respectively connected with the first oil cylinder, the second oil cylinder, the third oil cylinder, the fourth oil cylinder, the fifth oil cylinder, the sixth oil cylinder and the seventh oil cylinder.
A control method of a circular sawing machine for cutting stone comprises the following steps,
s1, setting the preset current value: setting a preset current value A1 and a walking speed D during automatic cutting on a touch display screen;
s2, obtaining a current comparison value: acquiring current values of the first variable-frequency driver and the second variable-frequency driver during actual cutting, comparing the two current values, and taking a larger value as a current comparison value A2;
s3, setting a frequency gain value KP and an integral action parameter KI of the walking variable frequency driver;
s4, comparative calculation: when the current comparison value is smaller than the preset current value, the walking variable frequency driver increases the output frequency by the proportion of (A1-A2)/A1 multiplied by KP, and the walking speed D is increased; when the current comparison value is larger than the preset current value, the walking variable frequency driver reduces the output frequency by the proportion of (A2-A1)/A1 multiplied by KP, and reduces the walking speed D.
After adopting above-mentioned technical scheme, a circular sawing machine is used in stone material cutting has following beneficial effect at least:
in the actual implementation process, the controller controls the walking drive frequency converter to control, the output frequency of the walking drive frequency converter is adjusted, and then the feeding rate of the moving wheel set is adjusted to achieve the functions of 'acceleration in soft condition and deceleration in hard condition' to adapt to cutting of stone ore bodies with different hardness parts, and the electric energy utilization efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a circular saw machine for cutting stone according to an embodiment of the present invention;
FIG. 2 is a diagram of a control mechanism of a circular saw machine for cutting stone material according to an embodiment of the present invention;
in the figure:
a cutting mechanism 1; a carrying mechanism 2; a control mechanism 3; a moving wheel group 21; a housing 11; a saw blade mounting base 12; a guide rod 22; a first wheel body 211; a second wheel body 212; a third wheel 213; a fourth wheel 214.
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is made of a specific embodiment as shown in fig. 1.
A circular sawing machine for cutting stone comprises a device main body; the device main body comprises a cutting mechanism 1 and a bearing mechanism 2 for bearing the cutting mechanism 1; the bearing mechanism 2 comprises a bearing seat and a movable wheel set 21 positioned below the bearing seat; the apparatus main body further includes a control mechanism 3; the control mechanism 3 comprises a first driving device for driving the moving wheel set 21 to move; the movable wheel set 21 comprises a first wheel set and a second wheel set matched with the first wheel set; the first driving device also comprises a first driving motor for driving the first wheel set to rotate and a second driving motor for driving the second wheel set to rotate; the control mechanism 3 also comprises a walking variable frequency driver connected with the first driving motor and the second driving motor and a controller connected with the walking variable frequency driver. In the actual implementation process, the controller controls the walking drive frequency converter to control, the output frequency of the walking drive frequency converter is adjusted, and then the feeding rate of the moving wheel set 21 is adjusted to achieve the functions of 'acceleration in soft case and deceleration in hard case' to adapt to cutting of stone ore bodies with different hardness parts, and the electric energy utilization efficiency is improved.
Preferably, the cutting mechanism 1 comprises a housing 11 and a blade mounting seat 12 rotatably connected with the housing 11 and used for mounting a saw blade; the saw blade mounting seat 12 comprises a first clamping seat and a second clamping seat which are respectively positioned at two sides of the shell 11; the control mechanism 3 further comprises a third driving motor for driving the first clamping seat to rotate and a fourth driving motor for driving the second clamping seat to rotate. In the practical implementation process, the third driving motor drives the first clamping seat, the fourth driving motor drives the second clamping seat, and the rotating speed of the circular saw can be effectively controlled by controlling the output power of the third driving motor and the output power of the fourth driving motor.
Preferably, the control mechanism 3 further comprises a cutting control assembly; the cutting control assembly includes a first variable frequency drive connected to the third drive motor and a second variable frequency drive connected to the fourth drive motor. In the actual implementation process, the output frequency is controlled by the first variable-frequency driver to adjust the rotating speed of the third driving motor; adjusting the rotating speed of the fourth driving motor through a second frequency converter; the third driving motor and the fourth driving motor can be efficiently adjusted to adapt to different hardness parts of the stone.
Preferably, the controller is respectively connected with the walking variable-frequency driver, the first variable-frequency driver and the second variable-frequency driver. In the actual implementation process, the controller controls the walking variable frequency drive to control the walking speed and simultaneously controls the first frequency converter and the second frequency converter to control the cutting rotating speed; specifically, when the high-hardness part of the stone is cut, the controller controls the traveling variable-frequency driver to reduce the output power of the first driving motor and the second driving motor, so that the traveling speed is reduced, and simultaneously controls the first variable-frequency driver and the second variable-frequency driver to improve the output power of the third motor and the fourth motor, so that the cutting speed is increased, the high-hardness part can be better cut, and the cutting efficiency is improved; when cutting the low hardness part of stone material, the controller control walking frequency conversion driver improves first driving motor and second driving motor's output for walking speed improves, controls first frequency conversion driver and second frequency conversion driver simultaneously and reduces the output of third motor and fourth motor, makes the cutting rotational speed less, can be better cut the low hardness part, improves cutting efficiency.
Preferably, the controller comprises a touch display screen and an intermediate relay. In the actual implementation process, in an automatic mode, the touch display screen reads and writes the running data of the walking variable-frequency driver, the first variable-frequency driver and the second variable-frequency driver through RS485 communication, so that the control of the variable-frequency driver, the first variable-frequency driver and the second variable-frequency driver is realized; the walking speed and the cutting rotating speed can be accurately controlled through the display of the touch display screen on data, so that the cutting efficiency is improved; in the manual mode, the walking speed and the cutting rotation can be controlled through an intermediate relay; the manual mode is usually complementary to the automatic mode.
Preferably, the control mechanism 3 further includes a first oil cylinder for driving the first clamping seat to extend and retract outwards and a second oil cylinder for driving the second clamping seat to extend and retract outwards. In the actual implementation process, the first clamping seat extends outwards through the first oil cylinder, and the second clamping seat extends outwards through the second oil cylinder, so that the width of the cut stone is adjusted, and the stone cutting machine is convenient for a user to use.
Preferably, the cutting mechanism 1 further comprises a guide rod 22 vertically arranged on the bearing seat; the shell 11 is connected with the guide rod 22 in a sliding way; the control mechanism 3 further includes a third cylinder for driving the housing 11 to move up and down along the guide rod 22. In actual implementation, make the annular saw descend through the third hydro-cylinder, convenient to use person cuts the stone material of different thickness, and convenient to use person uses.
Preferably, the first wheel set comprises two first wheels 211 and two second wheels 212, the rotation direction of which is perpendicular to the first wheels 211; the second wheel set comprises two third wheels 213 and two fourth wheels 214 with the rotation direction perpendicular to the third wheels 213; the second driving device further comprises a fourth oil cylinder, a fifth oil cylinder, a sixth oil cylinder and a seventh oil cylinder which are arranged at four corners of the bearing seat. In practical implementation, the first wheel 211 is parallel to the third wheel 213, the second wheel 212 is parallel to the fourth wheel 214, and specifically, the fourth cylinder and the fifth cylinder are located at two sides of the first wheel set; the sixth oil cylinder and the seventh oil cylinder are positioned at two sides of the second wheel set, when the walking track needs to be replaced, the fourth oil cylinder and the fifth oil cylinder extend out to enable the first wheel set to be lifted, the first track perpendicular to the walking track is placed in, and the fourth oil cylinder and the fifth oil cylinder contract after the track is placed in; then the sixth oil cylinder and the seventh oil cylinder extend out to jack up the second wheel set and are placed into a second track in the same direction, and then the sixth oil cylinder and the seventh oil cylinder contract; at this time, the first driving motor drives the second wheel body 212 to rotate and travel along the first track, and the second driving motor drives the fourth wheel body 214 to rotate and travel along the second track; and then the circular sawing machine moves along the vertical direction of the walking direction, so that the circular sawing machine can conveniently replace the track.
Preferably, the control mechanism 3 further comprises a hydraulic station oil pump and an oil pump main control module for controlling the hydraulic station oil pump; the hydraulic station oil pump is respectively connected with the first oil cylinder, the second oil cylinder, the third oil cylinder, the fourth oil cylinder, the fifth oil cylinder, the sixth oil cylinder and the seventh oil cylinder. In the practical implementation process, the oil pump main control module controls the hydraulic station oil pump to deliver oil to the first oil cylinder, the second oil cylinder, the third oil cylinder, the fourth oil cylinder, the fifth oil cylinder, the sixth oil cylinder and the seventh oil cylinder, so that the oil cylinders independently operate and are efficiently controlled.
A control method of a circular sawing machine for cutting stone comprises the following steps,
s1, setting the preset current value: setting a preset current value A1 and a walking speed D during automatic cutting on a touch display screen;
s2, obtaining a current comparison value: acquiring current values of the first variable-frequency driver and the second variable-frequency driver during actual cutting, comparing the two current values, and taking a larger value as a current comparison value A2;
s3, setting a frequency gain value KP and an integral action parameter KI of the walking variable frequency driver;
s4, comparative calculation: when the current comparison value is smaller than the preset current value, the walking variable frequency driver increases the output frequency by the proportion of (A1-A2)/A1 multiplied by KP, and the walking speed D is increased; when the current comparison value is larger than the preset current value, the walking variable frequency driver reduces the output frequency by the proportion of (A2-A1)/A1 multiplied by KP, and reduces the walking speed D.
In the practical implementation process, the step s2 takes a larger numerical value as the current comparison value, so that overload of one of the third driving motor and the fourth driving motor can be effectively prevented, and the motor damage can be avoided; specifically, in the cutting process, the actual cutting comparative current value is in positive correlation with the cutting load, when the cutting load is increased, the comparative current value is correspondingly increased, and under the condition that the walking speed is not changed, the cutting load is increased by cutting the high-hardness part, and the cutting load is reduced by cutting the low-hardness part; the motor has three states of no-load, overload and full load in the running process, wherein the full load state-conversion cutting efficiency is highest; the working current of the motor is gradually increased from no-load to full-load, in order to reduce electric energy waste, the working current of the motor can be in a full-load current area in the working process of the motor, the circular saw can cut efficiently by increasing or reducing loads, the service efficiency of electric energy is improved, and the preset current value can be set to be 80% of the full-load current value; step s4, adjusting the walking speed according to the difference ratio of the current comparison value and the preset current value, wherein when the difference value is larger, the adjusting speed is high; when the difference is small, the adjusting speed is low; the current comparison value is efficiently adjusted around the preset current value and is quickly approached, and the waste and the idle consumption of electric energy are reduced.
For example: the working current A1 of the first variable-frequency driver is 50A in the process of cutting by the small saw blade; the working current A2 of the second variable-frequency driver is 60A, A2> A1 is compared through touch screen operation, and A2 is taken as an output current comparison value. Setting 80A as an input preset current value by using a touch screen, setting a KP gain value of a chip for a walking frequency conversion driver to be 0.5, setting a KI integral value to be 3, setting a current comparison value to be 60< the preset current value 80, and setting a difference value to be 20. (namely, the comparison current value is less than the preset current value, at the moment, the walking driving mechanism is required to accelerate the moving speed), at the moment, the walking variable frequency driver PID function multiplies the KP by the proportional value of the difference value and the preset current value to increase the output frequency each time, the walking driving accelerates the moving speed, the loads of the first frequency converter and the second variable frequency driver are increased, the current is increased and the difference value of the current and the preset current value is reduced, the proportional adjustment amount each time is gradually reduced, when the current comparison value reaches the value close to the preset current value, in order to balance the current comparison value and the preset current value, the cutting is kept in a stable state, and the integral adjustment function performs the adjustment function according to the KI value and the accumulated time. The larger the KP value is set, the more proportional adjustment is performed, and the smaller the KI value is set, the faster the integral adjustment speed is performed. And conversely, when the comparison current value is larger than the preset current value, the walking drive mechanism is required to slow down the moving speed, the PID function of the walking variable-frequency driver multiplies the KP by the difference value proportion to reduce the output frequency each time, and the walking drive slows down the moving speed.
KP is 0.00-10.00;
the value range of KI is as follows: 0.1-100.0;
the touch screen has the function of the Internet of things, can collect field cutting data in real time for statistics, monitors the operation condition, and facilitates remote maintenance and control.
The controller has the front and back limiting function, can control and adjust the walking distance, realizes automatic control, reduces dependence on manpower, and can effectively improve the cutting efficiency.
The controller also comprises a distance measuring encoder connected with the third oil cylinder, the distance of the lifting of the saw blade can be measured and calculated, data are fed back to the controller, and then the solid automatic lifting control is realized, so that the dependence on manpower is reduced, and the cutting efficiency can be effectively improved.
Compared with the existing similar mine circular saw in the current market, the control method of the circular sawing machine for cutting the stone solves the following industrial pain points:
a. the mining efficiency is greatly improved, and meanwhile, the energy is saved; the prior art has no way to automatically adjust the walking speed and only can cut at a fixed speed, and when the cutting is carried out, the saw is easy to clamp, clamp and cut, the motor is burnt, a mechanical transmission mechanism and the like, and only low-current cutting can be carried out for the purpose of stability, so that the utilization rate of the motor is low.
b. All links can realize the automatic control function in the cutting, alleviate workman intensity of labour greatly.
c. The automatic cutting and the application of the remote monitoring of the Internet of things effectively change the mining operation environment, workers do not need to be always on the spot, the safety is greatly improved, and safety accidents are reduced.
d. The intelligent degree of the whole machine is high, and the failure rate is low.
The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.
While the present disclosure has been described with reference to exemplary embodiments, it is to be understood that the disclosure is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (10)
1. The utility model provides a circular sawing machine is used in stone material cutting which characterized in that: comprises a device main body; the device main body comprises a cutting mechanism and a bearing mechanism for bearing the cutting mechanism; the bearing mechanism comprises a bearing seat and a movable wheel set positioned below the bearing seat; the device body further comprises a control mechanism; the control mechanism comprises a first driving device for driving the moving wheel set to move; the movable wheel set comprises a first wheel set and a second wheel set matched with the first wheel set; the first driving device also comprises a first driving motor for driving the first wheel set to rotate and a second driving motor for driving the second wheel set to rotate; the control mechanism also comprises a walking variable-frequency driver connected with the first driving motor and the second driving motor and a controller connected with the walking variable-frequency driver.
2. The circular saw machine for cutting stone material as claimed in claim 1, wherein: the cutting mechanism comprises a shell and a saw blade mounting seat which is rotationally connected with the shell and is used for mounting a saw blade; the saw blade mounting seat comprises a first clamping seat and a second clamping seat which are respectively positioned at two sides of the shell; the control mechanism further comprises a third driving motor for driving the first clamping seat to rotate and a fourth driving motor for driving the second clamping seat to rotate.
3. The circular saw machine for cutting stone material as claimed in claim 2, wherein: the control mechanism further comprises a cutting control assembly; the cutting control assembly comprises a first variable frequency drive connected with a third drive motor and a second variable frequency drive connected with a fourth drive motor.
4. The circular saw machine for cutting stone material as claimed in claim 3, wherein: the controller is respectively connected with the walking variable-frequency driver, the first variable-frequency driver and the second variable-frequency driver.
5. The circular saw machine for cutting stone material as claimed in claim 4, wherein: the controller comprises a touch display screen and an intermediate relay.
6. The circular saw machine for cutting stone material as claimed in claim 5, wherein: the control mechanism further comprises a first oil cylinder for driving the first clamping seat to stretch outwards and a second oil cylinder for driving the second clamping seat to stretch outwards.
7. The circular saw machine for cutting stone material as claimed in claim 6, wherein: the cutting mechanism also comprises a guide rod which is positioned on the bearing seat and is vertically arranged; the shell is connected with the guide rod in a sliding manner; the control mechanism further comprises a third oil cylinder for driving the shell to move up and down along the guide rod.
8. The circular saw machine for cutting stone material as claimed in claim 7, wherein: the first wheel set comprises two first wheel bodies and two second wheel bodies, and the rotation directions of the two second wheel bodies are perpendicular to the first wheel bodies; the second wheel set comprises two third wheel bodies and two fourth wheel bodies, and the rotation directions of the fourth wheel bodies are perpendicular to the third wheel bodies; the second driving device further comprises a fourth oil cylinder, a fifth oil cylinder, a sixth oil cylinder and a seventh oil cylinder which are arranged at four corners of the bearing seat.
9. The circular saw machine for cutting stone material as claimed in claim 8, wherein: the control mechanism also comprises a hydraulic station oil pump and an oil pump main control module for controlling the hydraulic station oil pump; the hydraulic station oil pump is respectively connected with the first oil cylinder, the second oil cylinder, the third oil cylinder, the fourth oil cylinder, the fifth oil cylinder, the sixth oil cylinder and the seventh oil cylinder.
10. A control method of a circular sawing machine for cutting stone is characterized by comprising the following steps,
s1, setting the preset current value: setting a preset current value A1 and a walking speed D during automatic cutting on a touch display screen;
s2, obtaining a current comparison value: acquiring current values of the first variable-frequency driver and the second variable-frequency driver during actual cutting, comparing the two current values, and taking a larger value as a current comparison value A2;
s3, setting a frequency gain value KP and an integral action parameter KI of the walking variable frequency driver;
s4, comparative calculation: when the current comparison value is smaller than the preset current value, the walking variable frequency driver increases the output frequency by the proportion of (A1-A2)/A1 multiplied by KP, and the walking speed D is increased; when the current comparison value is larger than the preset current value, the walking variable frequency driver reduces the output frequency by the proportion of (A2-A1)/A1 multiplied by KP, and reduces the walking speed D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210214705.8A CN114714517A (en) | 2022-03-07 | 2022-03-07 | Circular sawing machine for cutting stone and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210214705.8A CN114714517A (en) | 2022-03-07 | 2022-03-07 | Circular sawing machine for cutting stone and control method thereof |
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| Publication Number | Publication Date |
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| CN114714517A true CN114714517A (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210214705.8A Pending CN114714517A (en) | 2022-03-07 | 2022-03-07 | Circular sawing machine for cutting stone and control method thereof |
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| Country | Link |
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| CN (1) | CN114714517A (en) |
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- 2022-03-07 CN CN202210214705.8A patent/CN114714517A/en active Pending
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