CN201812181U - Electric braking control device for large-inclination angle coal cutter - Google Patents
Electric braking control device for large-inclination angle coal cutter Download PDFInfo
- Publication number
- CN201812181U CN201812181U CN201020287685XU CN201020287685U CN201812181U CN 201812181 U CN201812181 U CN 201812181U CN 201020287685X U CN201020287685X U CN 201020287685XU CN 201020287685 U CN201020287685 U CN 201020287685U CN 201812181 U CN201812181 U CN 201812181U
- Authority
- CN
- China
- Prior art keywords
- coalcutter
- control device
- electric braking
- braking control
- coal cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Stopping Of Electric Motors (AREA)
Abstract
The utility model relates to an electric braking control device for a large-inclination angle coal cutter. The electric braking control device is controlled to delay to send out a brake release signal to the coal cutter when the coal cutter is controlled to start, so that the motor field of the electric braking control device reaches a saturation state, so as to generate enough torque to overcome the deadweight of the coal cutter. When the coal cutter is controlled to stop, a frequency converter of the electric braking control device is controlled to output continuously at a relative zero speed; and a motor of the electric braking control device keeps exciting to maintain a large enough torque to overcome the deadweight of the coal cutter.
Description
Technical field:
The utility model relates to the coalcutter technical field, particularly a kind of electric braking control device that is used for the high spud angle coalcutter.
Background technology:
Because in coming few decades, coal still is the main energy sources of China, remove and continue to build the high-yield and high-efficiency mine, improve the mining machinery level, in the development, outside the top coal caving technology and equipment of thick seam full-seam mining and super high seam, develop to be fit to China's national situation in, the production technique and the equipment of the large inclination working surface coalcutter of thick seam, not only become each colliery problem demanding prompt solution, also become the important topic that the coal in China industrial research is inquired into, be subjected to the attention of coal in China industry each side.Because in being fit to, thick seam coalcutter power, deadweight is all bigger, coalcutter is when startup and stopping, the situation that can occur gliding influences coalcutter Operation and Maintenance personnel's life safety.So these two problems have just become the restriction of these a series of coalcutter development, need to be resolved hurrily.
Summary of the invention:
When starting and stopping, occurring easily gliding in order to solve coalcutter of the prior art, influence the technical matters of coalcutter Operation and Maintenance personnel's safety.
For achieving the above object, the utility model proposes a kind of high spud angle coalcutter electric braking control device, wherein said brake control comprises frequency converter, motor, and control system, described electric braking control device is by controlling mechanical brake to realize the braking in coalcutter startup and the stopped process, wherein said electric braking control device also comprises being used for delaying time at control coalcutter startup control system described brake control and sends first chronotron of the signal that declutches to coalcutter, when first chronotron starts at the control coalcutter, controlling described brake control delays time and sends the signal that declutches to coalcutter, the motor-field of described electric braking control device is reached capacity, overcome the deadweight of coalcutter to produce enough torques.
Described electric braking control device also is included in second chronotron that the frequency converter of controlling described electric braking control device when the control coalcutter stops does not stop to export, when second chronotron stops at the control coalcutter, the frequency converter of controlling described electric braking control device does not stop output, described frequency converter is exported relative zero-speed, the motor of described electric braking control device keeps excitation, keeps enough big torque to overcome the deadweight of coalcutter.
The torque that the motor of described electric braking control device is kept is 150% to 200% of coalcutter deadweight.
The utility model makes high-power coal cutter in the large inclination working surface use by above-mentioned technological means, and the startup that coalcutter occurs is glided and two problems that stop gliding.
Description of drawings:
Fig. 1: flow chart when coalcutter of the present utility model starts;
Fig. 2: flow chart when coalcutter of the present utility model stops drawing;
Fig. 3: coalcutter of the present utility model Thrustor structural drawing;
Fig. 4: coalcutter of the present utility model Thrustor electric control system circuit diagram.
Embodiment:
The brake system of coalcutter of the present utility model comprises electric braking control device and Thrustor, wherein Thrustor under the control of electric braking control device in the action, to realize that the electric braking control device comprises frequency converter, motor, control circuit system and chronotron to the braking in coalcutter startup and the stopped process.Wherein Fig. 1 is the control timing block diagram of electric braking control device in the coalcutter start-up course, Fig. 2 is the control timing block diagram of electric braking control device in the coalcutter docking process, and the structure of the employed Thrustor of coalcutter as shown in Figure 3, it is a Thrustor commonly known in the art, can be structures such as friction disc type or multilayer friction chip, the circuit structure diagram of the electric control system of the Thrustor that Figure 4 shows that in the utility model to be adopted, because Thrustor is well known in the art, therefore in the utility model, this is repeated no more.
Coalcutter of the present utility model adopts " one-to-one " electrical haulage system, that is: a frequency converter drags a motor, solve high-power coal cutter the large inclination working surface use from following two aspects and then, the startup that coalcutter occurs is glided and two problems that stop gliding.
The coalcutter start-up course prevented the control of gliding: for the high spud angle coalcutter of adopting overall height, because the problem of coalcutter deadweight, the problem of downslide appears in coalcutter easily when large inclination working surface starts, to this, the utility model redesigns the electrical system program in the PLC program in employing aspect the electrical system, start shipment in the process at coalcutter, time-delay is to the coalcutter signal that declutches, motor-field is reached capacity, it produces 150% to 200% torque, thereby overcome the deadweight of coalcutter, guarantee not glide when coalcutter starts.In start-up course, the concrete control timing of electric braking control device is: begin to start from zero-speed, coalcutter begins the upward slope state, the control motor is with excitation, motor keeps given frequency, treat that coalcutter arrives the precalculated position, no longer be in climbing state, first chronotron of electric braking control device is delayed time to the coalcutter signal that declutches, treat that mechanical detent (as Thrustor) is in (closing) lock state of embracing, because time-delay makes motor-field reach capacity, has produced 150% to 200% torque, overcome the deadweight of coalcutter, thereby prevented the downslide of coalcutter in start-up course.
To the control that prevents from the coalcutter docking process to glide: need to stop at coalcutter, or because scram and when slowing down, lead when stopping button when pressing, frequency converter does not stop output, but frequency converter is exported relative zero-speed, and this moment, inverter was kept work, and motor keeps excitation, keep enough big torque and overcome the coalcutter deadweight, thereby reach the purpose that does not glide when coalcutter stops.By the design of electrical system software, the control algolithm of application of advanced made in the time of zero-speed delay function definition, and gear unit can be learnt the position of rotor accurately.Just be equivalent to the function that zero-speed enables.In the coalcutter docking process, the concrete control timing of electric braking control device is: when needs stop, lead when stopping button when pressing, the second chronotron control of conversion device of electric braking control device does not stop output, but export relative zero-speed, promptly can make coalcutter keep a frequency output than low velocity with one, motor keeps excitation simultaneously, keep enough big torque and overcome the coalcutter deadweight, treat that mechanical clamping device (as Thrustor) is in (closing) lock state of embracing, the electric braking control device stops the output of frequency converter, coalcutter is finished parking, because the torque that motor produces in docking process has overcome the deadweight of coalcutter, thereby has prevented the downslide of coalcutter in docking process.
By above two aspects, by appropriate design system and software, make the electric braking system, mechanical-hydraulic brake system and zero-speed braking realize the optimum control of brake system from movingly, and can effectively reduce the lock wearing and tearing, prolong the brake lining life-span.The workplace ruuning situations of 1710kW, 90 tons coalcutter of deadweight average 30 degree at inclination angle, actual colliery of using this electrical system are good.Produce a desired effect.
Though the utility model is described with reference to a plurality of embodiment; but the utility model is not limited to the foregoing description; be to be understood that those skilled in the art can carry out the suitable new embodiment that is combined to form to the parts that relate in the foregoing description, all should fall within the protection domain of the present utility model in the various tangible modifications and variations of carrying out on the basis that does not break away from the utility model principle.
Claims (3)
1. high spud angle coalcutter electric braking control device, wherein said brake control comprises frequency converter, motor and control system, it is characterized in that, described electric braking control device by the control mechanical brake with realize to coalcutter start and stopped process in braking, wherein said electric braking control device also comprises and being used at the described brake control of control coalcutter startup control system declutch first chronotron of signal of to coalcutter transmission of delaying time.
2. high spud angle coalcutter electric braking control device as claimed in claim 1 is characterized in that, described electric braking control device also is included in second chronotron that the frequency converter of controlling described electric braking control device when the control coalcutter stops does not stop to export.
3. high spud angle coalcutter electric braking control device as claimed in claim 1 or 2 is characterized in that, the torque that the motor of described electric braking control device is kept is 150% to 200% of coalcutter deadweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020287685XU CN201812181U (en) | 2010-08-11 | 2010-08-11 | Electric braking control device for large-inclination angle coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020287685XU CN201812181U (en) | 2010-08-11 | 2010-08-11 | Electric braking control device for large-inclination angle coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812181U true CN201812181U (en) | 2011-04-27 |
Family
ID=43895121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020287685XU Expired - Fee Related CN201812181U (en) | 2010-08-11 | 2010-08-11 | Electric braking control device for large-inclination angle coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394563A (en) * | 2011-10-10 | 2012-03-28 | 山东新风光电子科技发展有限公司 | Safe dragging system of high-voltage elevator, and commissioning control mode and working method thereof |
| CN106368700A (en) * | 2016-08-30 | 2017-02-01 | 西安煤矿机械有限公司 | Coal cutter teaching and reproduction automatic cutting control method for downhole thin coal seam with wind direction |
-
2010
- 2010-08-11 CN CN201020287685XU patent/CN201812181U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394563A (en) * | 2011-10-10 | 2012-03-28 | 山东新风光电子科技发展有限公司 | Safe dragging system of high-voltage elevator, and commissioning control mode and working method thereof |
| CN106368700A (en) * | 2016-08-30 | 2017-02-01 | 西安煤矿机械有限公司 | Coal cutter teaching and reproduction automatic cutting control method for downhole thin coal seam with wind direction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202805719U (en) | Fine blanking machine alternating current servo fluid power system | |
| CN103475281B (en) | A kind of double-motor synchronous control device based on PLC | |
| CN201812181U (en) | Electric braking control device for large-inclination angle coal cutter | |
| CN103047082B (en) | Hydraulic yaw system and regulation and control method thereof for wind generating set | |
| CN203612856U (en) | Special control system based on high-efficiency intelligent safe petroleum drilling winch system | |
| CN101787886A (en) | Coal mine machinery and transmission system thereof | |
| WO2012001138A3 (en) | Differential transmission for a wind power installation and method for operation of said differential transmission | |
| CN201756427U (en) | Mining explosion-proof variable-frequency hoist | |
| CN103490553B (en) | A kind of elastic resistance mechanical braking high-power soft starting drive | |
| CN202628092U (en) | Control system for cutting device of driving anchor machine | |
| CN102990121A (en) | Hand-held electric drill | |
| CN201882554U (en) | Variable-frequency driving belt conveyor | |
| CN105302052A (en) | Electric control device system for mining elevator and control method thereof | |
| CN104355083A (en) | Algorithm for preset frequency of variable frequency driving-type scrapping plate conveyor | |
| CN201623616U (en) | Coal mine machine and transmission system thereof | |
| CN204755852U (en) | Fixed combination base of speed reducer | |
| CN201063584Y (en) | Variable-frequency driven rotary drill gyration and boost traveling system | |
| CN204938766U (en) | The magnetic powder clutched control setup of a kind of quenching crane lift system frequency control | |
| CN204425224U (en) | A kind of elevator PLC controls frequency control electric-control system | |
| CN201159851Y (en) | Vector variable-frequency timing control cabinet of rotary drill rig | |
| CN202592562U (en) | Two-dimensional movable disc type saw-cutting machine control system of mine stone | |
| CN202075586U (en) | Mine quarrying machine control system | |
| CN202441377U (en) | Loading and transporting star wheel of heading machine | |
| CN202464966U (en) | Energy-saving high-efficient construction lifter | |
| CN107758538A (en) | The dust-proof hoist engine of novel double-motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xi'an Coal Mining Machinery Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: XI'AN COAL MINING MACHINERY Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20190811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |