CN106628941B - A kind of adhesive tape machine control system and method - Google Patents
A kind of adhesive tape machine control system and method Download PDFInfo
- Publication number
- CN106628941B CN106628941B CN201611039877.7A CN201611039877A CN106628941B CN 106628941 B CN106628941 B CN 106628941B CN 201611039877 A CN201611039877 A CN 201611039877A CN 106628941 B CN106628941 B CN 106628941B
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- Prior art keywords
- tension
- transmission system
- belt
- belt transmission
- rubber belt
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- 239000002390 adhesive tape Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 103
- 239000000700 radioactive tracer Substances 0.000 claims description 6
- 230000036316 preload Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 9
- 230000001276 controlling effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000010297 mechanical methods and process Methods 0.000 description 6
- 230000005226 mechanical processes and functions Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- -1 skidding Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/44—Belt or chain tensioning arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0291—Speed of the load carrier
Abstract
The invention discloses a kind of adhesive tape control systems, it include: clamping system, drive system, rubber belt transmission system, combined frequency changer and controller, controller, belt transport speed control instruction and belt tension control instruction are obtained for acquiring the tension signal of the rubber belt transmission system, and according to the tension signal；Combined frequency changer for controlling the belt transport speed of the rubber belt transmission system according to the belt transport speed control instruction, and controls according to the belt tension control instruction belt tension of the rubber belt transmission system.Implement the embodiment of the present invention, has the advantages that through the communication between controller and combined frequency changer, realize the normal operation work of rubber belt transmission system, reduce communication line, equipment failure rate is reduced, while when needing to upgrade rubber belt transmission system, need to only pass through upgrade controller.
Description
Technical field
The present invention relates to sealing-tape machine transmission field more particularly to a kind of adhesive tape machine control systems and method.
Background technique
The driving of coal mine field sealing-tape machine at present and the control mode for being tensioned control switch are split type control, driving control
System switch independently uses cabinet body to install with tensioning control switch, the starting of driving switch control sealing-tape machine driving frequency converter,
Stopping, acceleration and deceleration etc. are tensioned the clamping system of switch control belt, because there is close logic control, institutes therebetween
To need to communicate, the prior art mainly connects driving switch by multi-cable and tensioning switchs, and realizes the communication of the two.It is existing
Split type control mode has the disadvantage that in technology: first, drive control switch and tensioning control switch are independently installed in cabinet body
It is interior, it is big to occupy installation space.Second, since drive control switchs and is tensioned between control switch there are logic control, equipment it
Between need by cable transmission control signal, information content is limited and unstable, cause sealing-tape machine control mode upgrade bottleneck.
Summary of the invention
It is an object of the invention to overcome the shortcomings of that the driving of the prior art and tensioning control using split-type design, provide
A kind of adhesive tape machine control system and method.
Technical solution of the present invention provides a kind of adhesive tape machine control system, comprising: clamping system, drive system, adhesive tape pass
Defeated system, combined frequency changer and controller,
Controller obtains belt for acquiring the tension signal of the rubber belt transmission system, and according to the tension signal
Transmission speed control instruction and belt tension control instruction；
Combined frequency changer, for controlling the belt of the rubber belt transmission system according to the belt transport speed control instruction
Transmission speed controls the belt tension of the rubber belt transmission system according to the belt tension control instruction.
Further, the combined frequency changer includes at least one driving frequency converter and a tensioning frequency converter:
Frequency converter is driven, for controlling the belt of the rubber belt transmission system according to the belt transport speed control instruction
Transmission speed；
It is tensioned frequency converter, for controlling the belt tension of the rubber belt transmission system according to tension force instruction.
Further, the combined frequency changer includes two driving frequency converters, and the drive system includes two driving electricity
Machine.
Further, the tensioning frequency converter is also used to:
Tension preload is carried out to the rubber belt transmission system according to the belt tension control instruction.
Further, the system also includes:
Tracer, for detecting the fault-signal of the rubber belt transmission system；
On off controller, for controlling the starting and/or stopping of the rubber belt transmission system according to the fault-signal.
Further, the system also includes:
Display module, for showing the working condition of the rubber belt transmission system.
A kind of sealing-tape machine control method of the present invention, comprising:
Tension signal acquisition step, comprising: the tension signal of acquisition rubber belt transmission system；
Control instruction obtains step, comprising: obtains belt transport speed control instruction and belt according to the tension signal
Tension force instruction；
Rubber belt transmission System controlled step, comprising: the adhesive tape is controlled according to the belt transport speed control instruction and is passed
The belt transport speed of defeated system, and opened according to the belt that the belt tension control instruction controls the rubber belt transmission system
Power.
Further, the rubber belt transmission System controlled step specifically includes:
Driving frequency converter controls the belt transport of the rubber belt transmission system according to the belt transport speed control instruction
Speed, tensioning frequency converter control the belt tension of the rubber belt transmission system according to tension force instruction.
Further, the rubber belt transmission System controlled step further include:
The tensioning frequency converter carries out tension preload to the rubber belt transmission system according to the belt tension control instruction.
Further, the method also includes:
Failure detection steps, comprising: detect the fault-signal of the rubber belt transmission system；
Rubber belt transmission system protection step, comprising: the starting of the rubber belt transmission system is controlled according to the fault-signal
And/or stop.
After adopting the above technical scheme, have the following beneficial effects: the tension signal by controller acquiring and transmission system,
Belt transport speed control instruction and belt tension control instruction are obtained, combined frequency changer is according to belt transport speed control instruction
The belt transport speed of rubber belt transmission system is controlled, and controls the belt of rubber belt transmission system according to belt tension control instruction
Power realizes the normal operation work of rubber belt transmission system, reduces communication line, reduces equipment failure rate, while working as and needing to upgrade
When rubber belt transmission system, it need to only pass through upgrade controller.
Detailed description of the invention
Referring to attached drawing, the disclosure of the present invention will become more readily understood.It is understood that these attached drawings are merely illustrative
Purpose, and be not intended to limit the scope of protection of the present invention.In figure:
Fig. 1 is a kind of structural schematic diagram of adhesive tape machine control system of the present invention；
Fig. 2 is the structural schematic diagram of preferred embodiment；
Fig. 3 is a kind of work flow diagram of sealing-tape machine control method of the present invention.
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.
It is readily appreciated that, according to the technique and scheme of the present invention, in the case where not changing true spirit, the general skill of this field
The various structures mode and implementation that art personnel can be replaced mutually.Therefore, following specific embodiments and attached drawing are only
To the exemplary illustration of technical solution of the present invention, and it is not to be construed as whole of the invention or is considered as to inventive technique scheme
It defines or limits.
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts, and it is therefore possible to can root
Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side
Position term is construed to restricted term.
It is as shown in Figure 1 a kind of structural schematic diagram of adhesive tape machine control system of the present invention, including clamping system 11, driving system
System 12, rubber belt transmission system 13, combined frequency changer 14 and controller 15,
Controller 15 obtains belt transport for acquiring the tension signal of rubber belt transmission system 13, and according to tension signal
Rate control instruction and belt tension control instruction；
Specifically, after controller 15 acquires tension signal, by the tension signal value of acquisition and preset tension signal
Value is compared, and when the tension signal value of acquisition and preset tension signal value difference value are big, controls belt transport speed
Increase, when the tension signal value of acquisition and preset tension signal value difference value are small, control belt transport speed reduces.
Combined frequency changer, for controlling the belt transport speed of rubber belt transmission system 13 according to belt transport speed control instruction
Degree, and according to the belt tension of belt tension control instruction control rubber belt transmission system 13.
In actual mechanical process, combined frequency changer 14 includes that at least one driving frequency converter 141 and a tensioning become
Frequency device 142, specific:
Frequency converter 141 is driven, for stating the belt of rubber belt transmission system 13 according to the control of belt transport speed control instruction
Transmission speed；
It is tensioned frequency converter 142, for instructing the belt tension of control rubber belt transmission system 13 according to tension force.
In the present embodiment, by the driving frequency converter of drive system and the tensioning frequency converter Combination Design of clamping system to combining
In frequency converter, and driving frequency converter and tensioning frequency converter, centralized control drive system and clamping system are connected by controller, it is real
Existing seamless communication connection, reduces equipment failure rate.
In one embodiment, combined frequency changer 14 includes two driving frequency converters 141, and drive system 12 includes two
Driving motor 121.Two driving motors 121 are connected with corresponding two driving frequency converters 141 respectively.Pass through two independent drives
Dynamic frequency converter, principal and subordinate, sets any driving frequency converter as host each other, then another driving frequency converter is automatically regulated to be slave,
Two-shipper automatically forms dynamic power balance by optical-fibre communications.
14 real-time monitoring of combined frequency changer acquires the tension signal of rubber belt transmission system 13, and controller 15 is opened according to acquisition
Force signal sends belt tension control instruction to tensioning frequency converter 142, and pre-tensioner, adjusting rubber belt transmission is carried out to clamping system 11
The belt tension of system 13, while belt transport speed control instruction is sent to driving frequency converter 141, control drive system 12
Driving motor 121 is slowly operated by low speed to high speed, is operated normally after high speed, to control the fortune of rubber belt transmission system 13
Scanning frequency degree.
It is illustrated in figure 2 the structural schematic diagram of preferred embodiment, including clamping system 11, drive system 12, glue
Tape transport system 13, combined frequency changer 14 and controller 15,
Combined frequency changer 14, for acquiring the tension signal of rubber belt transmission system 13；
Controller 15, for obtaining belt transport speed control instruction and belt tension control instruction according to tension signal,
And according to the belt transport speed of belt transport speed control instruction and belt tension control instruction control rubber belt transmission system 13
And belt tension.
Specifically, after controller 15 acquires tension signal, by the tension signal value of acquisition and preset tension signal
Value is compared, and when the tension signal value of acquisition and preset tension signal value difference value are big, controls belt transport speed
Increase, when the tension signal value of acquisition and preset tension signal value difference value are small, control belt transport speed reduces.
In actual mechanical process, combined frequency changer 14 includes that at least one driving frequency converter 141 and a tensioning become
Frequency device 142, specific:
Frequency converter 141 is driven, the belt for controlling rubber belt transmission system 13 according to belt transport speed control instruction passes
Defeated speed；
It is tensioned frequency converter 142, for instructing the belt tension of control rubber belt transmission system 13 according to tension force.
In the present embodiment, by the driving frequency converter of drive system and the tensioning frequency converter Combination Design of clamping system to combining
In frequency converter, and driving frequency converter and tensioning frequency converter, centralized control drive system and clamping system are connected by controller, it is real
Existing seamless communication connection, reduces equipment failure rate.
In one embodiment, tensioning frequency converter 142 is also used to:
Tension preload is carried out to rubber belt transmission system 13 according to belt tension control instruction.
In one embodiment, the system also includes:
Tracer 143, for detecting the fault-signal of rubber belt transmission system 13；
On off controller 16, for controlling the starting and/or stopping of rubber belt transmission system 13 according to fault-signal.
In the actual operation process, for protective glue tape transport system 13, combined frequency changer 14 is interior to be arranged tracer
143, when rubber belt transmission system 13 breaks down in transmission process, as sideslip occurs in adhesive tape, skidding, coal piling, vertical tears, along the line
When emergency stop, temperature are excessively high, tracer 143 sends fault-signal on off controller after detecting fault-signal
16, the starting of rubber belt transmission system 13 and/or out of service is controlled by off controller 16.
In one embodiment, system further include:
Display module 17, for showing the working condition of rubber belt transmission system 13.
In specific actual mechanical process, clamping system 11 include winch motor, cable drum, tension sensor and
The input terminal of moving trolley, winch motor is connect with the output end of tensioning frequency converter, the output end and wire rope roll of winch motor
The input terminal connection of cylinder, the output end of cable drum and the input terminal of tension sensor connect, the output end of tension sensor
It is connect with the input terminal of moving trolley, the output end of the moving trolley is connect with the input terminal of the rubber belt transmission system.
14 real-time monitoring of combined frequency changer acquires the tension signal of rubber belt transmission system 13, and controller 15 is opened according to acquisition
Force signal sends pre-tensioner signal to tensioning frequency converter 142, carries out to clamping system 11 pre-tensioner, then passes through winch motor tune
The wirerope length of cable drum is saved, and belt tension control instruction is transmitted to tension sensor, tension sensor control
Moving trolley, the tension of belt is controlled by moving trolley, to reach the tensioning for adjusting rubber belt transmission system.Meanwhile it controlling
Device 15 sends belt transport speed control instruction to driving frequency converter 141, controls the driving motor 121 of drive system 12 by low speed
It to slowly operating at a high speed, is operated normally after high speed, to control the speed of service of rubber belt transmission system 13, controller 15 is logical
It crosses 17 interface of display module and operation control is carried out to combined frequency changer 14.
It is illustrated in figure 3 a kind of work flow diagram of sealing-tape machine control method of the present invention, comprising:
Step S101: the tension signal of combined frequency changer acquisition rubber belt transmission system；
Step S102: belt transport speed control instruction and belt tension control instruction, and root are obtained according to tension signal
According to the belt transport speed and belt of belt transport speed control instruction and belt tension control instruction control rubber belt transmission system
Tension.
Specifically, the tension signal value of acquisition and preset tension signal value are compared after acquisition tension signal
Compared with when the tension signal value of acquisition and preset tension signal value difference value are big, control belt transport speed increases, when adopting
The tension signal value of collection and preset tension signal value difference value hour, control belt transport speed reduce.
In actual mechanical process, combined frequency changer includes that at least one drives frequency converter and a tensioning frequency converter,
Step S102 is specifically included:
Frequency converter is driven to control the belt transport speed of rubber belt transmission system, tensioning according to belt transport speed control instruction
Frequency converter instructs the belt tension of control rubber belt transmission system according to tension force.
In the present embodiment, by the driving frequency converter of drive system and the tensioning frequency converter Combination Design of clamping system to combining
In frequency converter, and driving frequency converter and tensioning frequency converter, centralized control drive system and clamping system are connected by controller, it is real
Existing seamless communication connection, reduces equipment failure rate.
Tensioning frequency converter carries out rubber belt transmission system also according to belt tension control instruction in one of the embodiments,
Tension pre-tightens.
In actual mechanical process, combined frequency changer real-time monitoring acquires the tension signal of rubber belt transmission system, according to
The tension signal of acquisition sends belt tension control instruction to frequency converter is tensioned, and pre-tensioner, adjusting adhesive tape is carried out to clamping system
The belt tension of Transmission system, while belt transport speed control instruction is sent to frequency converter is driven, control the drive of drive system
Dynamic motor is slowly operated by low speed to high speed, is operated normally after high speed, to control the speed of service of rubber belt transmission system.
In one of the embodiments, further include:
Detect the fault-signal of the rubber belt transmission system；
The starting and/or stopping of rubber belt transmission system are controlled according to fault-signal.
In actual mechanical process, for protective glue tape transport system, when rubber belt transmission system goes out in transmission process
When existing failure, as adhesive tape occur sideslip, skidding, coal piling, it is vertical tear, when emergency stop, temperature are excessively high along the line, detect that failure is believed
Fault-signal is sent after number on off controller, and the starting and/or stopping of rubber belt transmission system are controlled by off controller
Operation.
In conclusion by the tension signal of controller acquiring and transmission system, obtain belt transport speed control instruction and
Belt tension control instruction, combined frequency changer control the belt transport of rubber belt transmission system according to belt transport speed control instruction
Speed, and according to the belt tension of belt tension control instruction control rubber belt transmission system, realize the normal of rubber belt transmission system
Work is run, communication line is reduced, reduces equipment failure rate, while when needing to upgrade rubber belt transmission system, need to only pass through liter
Grade controller.Meanwhile tracer is set in combined frequency changer, when rubber belt transmission system breaks down, send
Fault-signal controls the starting of rubber belt transmission system and/or out of service, to reach protection rubber belt transmission on off controller
System purpose.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that for the common skill of this field
For art personnel, on the basis of the principle of the invention, several other modifications can also be made, also should be regarded as protection model of the invention
It encloses.
Claims (10)
1. a kind of adhesive tape machine control system, comprising: clamping system, drive system and rubber belt transmission system, which is characterized in that also wrap
It includes:
Controller, for acquiring the tension signal of the rubber belt transmission system, and by the tension signal value of the tension signal with
Preset tension signal value is compared, when the tension signal value and preset tension signal value of the tension signal
When difference is big, control belt transport speed increases, tension signal value and preset tension signal when the tension signal
Value difference value hour, control belt transport speed reduce, and obtain belt transport speed control instruction and belt tension control instruction；
Combined frequency changer, for controlling the belt transport of the rubber belt transmission system according to the belt transport speed control instruction
Speed, and control according to the belt tension control instruction belt tension of the rubber belt transmission system.
2. adhesive tape machine control system as described in claim 1, which is characterized in that the combined frequency changer includes at least one drive
Dynamic frequency converter and a tensioning frequency converter:
Frequency converter is driven, for controlling the belt transport of the rubber belt transmission system according to the belt transport speed control instruction
Speed；
It is tensioned frequency converter, for controlling the belt tension of the rubber belt transmission system according to the belt tension control instruction.
3. adhesive tape machine control system as claimed in claim 2, which is characterized in that the combined frequency changer includes that two drivings become
Frequency device, the drive system include two driving motors.
4. adhesive tape machine control system as claimed in claim 2, which is characterized in that the tensioning frequency converter is also used to:
Tension preload is carried out to the rubber belt transmission system according to the belt tension control instruction.
5. adhesive tape machine control system as described in claim 1, which is characterized in that the system also includes:
Tracer, for detecting the fault-signal of the rubber belt transmission system；
On off controller, for controlling the starting and/or stopping of the rubber belt transmission system according to the fault-signal.
6. adhesive tape machine control system as claimed in claim 1 to 5, which is characterized in that the system also includes:
Display module, for showing the working condition of the rubber belt transmission system.
7. a kind of sealing-tape machine control method characterized by comprising
Tension signal acquisition step, comprising: the tension signal of acquisition rubber belt transmission system；
Control instruction obtains step, comprising: by the tension signal value of the tension signal and preset tension signal value into
Row compares, and when the tension signal value of the tension signal and preset tension signal value difference value are big, controls belt transport
Speed increases, and when the tension signal value of the tension signal and preset tension signal value difference value are small, control belt is passed
Defeated speed reduces, and obtains belt transport speed control instruction and belt tension control instruction；
Rubber belt transmission System controlled step, comprising: the rubber belt transmission system is controlled according to the belt transport speed control instruction
The belt transport speed of system, and control according to the belt tension control instruction belt tension of the rubber belt transmission system.
8. sealing-tape machine control method as claimed in claim 7, which is characterized in that the rubber belt transmission System controlled step is specific
Include:
Driving frequency converter controls the belt transport speed of the rubber belt transmission system according to the belt transport speed control instruction,
Tensioning frequency converter controls the belt tension of the rubber belt transmission system according to the belt tension control instruction.
9. sealing-tape machine control method as claimed in claim 8, which is characterized in that the rubber belt transmission System controlled step also wraps
It includes:
The tensioning frequency converter carries out tension preload to the rubber belt transmission system according to the belt tension control instruction.
10. sealing-tape machine control method as claimed in claim 7, which is characterized in that further include:
Failure detection steps, comprising: detect the fault-signal of the rubber belt transmission system；
Rubber belt transmission system protection step, comprising: according to the fault-signal control the rubber belt transmission system starting and/or
Stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039877.7A CN106628941B (en) | 2016-11-22 | 2016-11-22 | A kind of adhesive tape machine control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039877.7A CN106628941B (en) | 2016-11-22 | 2016-11-22 | A kind of adhesive tape machine control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106628941A CN106628941A (en) | 2017-05-10 |
| CN106628941B true CN106628941B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611039877.7A Active CN106628941B (en) | 2016-11-22 | 2016-11-22 | A kind of adhesive tape machine control system and method |
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| CN (1) | CN106628941B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114408450A (en) * | 2022-02-28 | 2022-04-29 | 国能神东煤炭集团有限责任公司 | Safe starting method and system of adhesive tape machine and storage medium |
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| CN202743943U (en) * | 2012-09-20 | 2013-02-20 | 王立功 | Intelligent control device for belt conveyor for mine |
| CN203079261U (en) * | 2013-02-27 | 2013-07-24 | 安徽恒源煤电股份有限公司 | Tension monitoring device of belt conveyor |
| CN103224118A (en) * | 2013-04-15 | 2013-07-31 | 新汶矿业集团有限责任公司 | Automatic tensioning system of belt conveyor and applications thereof |
| CN103569625A (en) * | 2013-10-23 | 2014-02-12 | 山西煤矿机械制造有限责任公司 | Underground coal mine scraper conveyor and chain broken prevention control method |
| CN104097915A (en) * | 2014-07-08 | 2014-10-15 | 万宝矿产有限公司 | Synchronizing system of multi-transmission rubber belt conveyor |
| CN204508003U (en) * | 2015-02-04 | 2015-07-29 | 中交一航局安装工程有限公司 | A kind of adjustable speed coal conveyer belts |
| CN204727085U (en) * | 2015-06-18 | 2015-10-28 | 天津华宁电子有限公司 | A kind of mining tensioning motor control assembly |
| CN204822995U (en) * | 2015-07-22 | 2015-12-02 | 山东欧瑞安电气有限公司 | Sticky tape cargo airplane PMSM rises and tightly installs for coal mine |
| CN105600354A (en) * | 2015-10-19 | 2016-05-25 | 江苏大学 | Automatic detection and adjustment device and method for preventing breakage and slippage of long-conveying-distance conveying belt |
| CN105417014A (en) * | 2015-12-02 | 2016-03-23 | 中国神华能源股份有限公司 | Full-automatic tensioning control system and method used for rubber belt machine |
| CN205675691U (en) * | 2016-06-13 | 2016-11-09 | 山东博诚电气有限公司 | A kind of magneto variable frequency tensioning device |
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