CN202245197U - Direct-current control system for belt conveyor - Google Patents
Direct-current control system for belt conveyor Download PDFInfo
- Publication number
- CN202245197U CN202245197U CN2011203518245U CN201120351824U CN202245197U CN 202245197 U CN202245197 U CN 202245197U CN 2011203518245 U CN2011203518245 U CN 2011203518245U CN 201120351824 U CN201120351824 U CN 201120351824U CN 202245197 U CN202245197 U CN 202245197U
- Authority
- CN
- China
- Prior art keywords
- direct
- relay
- switch
- current
- control system
- 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
- Control Of Conveyors (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
A direct-current control system for a belt conveyor comprises a direct-current control loop, a pull cord switch, a belt sway switch, a low-speed switch and a blockage switch which are in parallel connection are arranged on the direct-current control loop, a direct-current relay and a direct-current power supply convertor are further arranged on the direct-current control loop, and a normally-closed contact of the direct-current relay is arranged in a motor secondary protection control loop. By the aid of the direct-current control system for the belt conveyor, alternating-current induced voltage in a belt comprehensive protection loop is eliminated, stable and reliable operation of the control loop is guaranteed, and misoperation accidents due to induced voltage are eliminated.
Description
Technical field
The utility model belongs to dynamo-electric field, relates in particular to the band conveyor Integrated Protection System.
Background technology
Belt integrated protection control loop is alternating-current voltage/AC voltage 220V power supply, because belt is long, generally at 400-500 rice; The control path that stay cord, sideslip, low speed, the putty switch of installing with belt connects is longer; When protection switch does not move, just respond to the alternating-current voltage/AC voltage of volt more than 100 in the circuit, take the RC capacitance-resistance to absorb and to make voltage drop to 30 volts, can not eliminate fully; Misoperation often occurs, directly influence ordinary production.
The utility model content
The utility model provides a kind of band conveyor DC control system, is used for solving the problem that belt integrated protection ac control circuit induced voltage height causes misoperation.
Adopt following technical scheme in order to solve the problems of the technologies described above: a kind of band conveyor DC control system; Comprise DC control circuit; Parallel connection is provided with pull switch, sideslip switch, low speed switch, putty switch on the DC control circuit; Also be provided with DC relay on the DC control circuit, the normally closed contact of DC relay is located in the motor second protection control loop, and DC power convertor is set on DC control circuit.
The positive pole of described DC relay is connected with the positive pole of DC power convertor, and the negative pole of DC relay is connected with the negative pole of DC power convertor.
Diode of described DC relay place reversal connection parallel connection.
Adopt the utility model, 220 volts of power supplys are received on the DC power convertor, DC power convertor has been eliminated belt integrated protection loop ac induction voltage to 24 volts of direct current (DC) of DC control circuit output, guarantees control loop working stability, reliable; Through the DC relay isolation control signal, stopped again because the misoperation accident that induced voltage causes.
Description of drawings
Fig. 1 is the principle schematic of the utility model.
The specific embodiment
As shown in Figure 1; A kind of band conveyor DC control system comprises DC control circuit 1, and parallel connection is provided with pull switch 2, sideslip switch 3, low speed switch 4, putty switch 5 on the DC control circuit 1; Also be provided with DC relay 6 on the DC control circuit 1; Diode 8 of DC relay 6 places reversal connection parallel connection, the normally closed contact 7 of DC relay is located in the motor second protection control loop, and DC power convertor 9 is set on DC control circuit 1; The positive pole of DC relay 6 is connected with the positive pole of DC power convertor 9, and the negative pole of DC relay is connected with the negative pole of DC power convertor.
The 220V source of AC is after DC power convertor is changed to the 24V direct supply; Anodal stay cord, sideslip, low speed, the putty integrated protection loop passed through is to the DC relay positive pole; DC relay reversal connection parallel diode can play the moment when the relay power cut-off; Eliminate the inverse electromotive force that the coil two ends produce, play protective relay.The DC relay normally closed contact is received in the belt feeder motor second protection control loop.
Claims (3)
1. band conveyor DC control system; It is characterized in that: comprise DC control circuit; Parallel connection is provided with pull switch, sideslip switch, low speed switch, putty switch on the DC control circuit; Also be provided with DC relay on the DC control circuit, the normally closed contact of DC relay is located in the motor second protection control loop, and DC power convertor is set on DC control circuit.
2. band conveyor DC control system according to claim 1 is characterized in that: the positive pole of described DC relay is connected with the positive pole of DC power convertor, and the negative pole of DC relay is connected with the negative pole of DC power convertor.
3. band conveyor DC control system according to claim 1 is characterized in that: diode of described DC relay place reversal connection parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203518245U CN202245197U (en) | 2011-09-20 | 2011-09-20 | Direct-current control system for belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203518245U CN202245197U (en) | 2011-09-20 | 2011-09-20 | Direct-current control system for belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202245197U true CN202245197U (en) | 2012-05-30 |
Family
ID=46106474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203518245U Expired - Fee Related CN202245197U (en) | 2011-09-20 | 2011-09-20 | Direct-current control system for belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202245197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963422A (en) * | 2017-12-21 | 2018-04-27 | 毕冠华 | A kind of system for eliminating induced voltage in the program-controlled circuit of coal conveyor |
| CN112051763A (en) * | 2020-08-06 | 2020-12-08 | 陕西榆林能源集团横山煤电有限公司 | Circuit for eliminating induced electricity of alternating current control loop and implementation method thereof |
-
2011
- 2011-09-20 CN CN2011203518245U patent/CN202245197U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963422A (en) * | 2017-12-21 | 2018-04-27 | 毕冠华 | A kind of system for eliminating induced voltage in the program-controlled circuit of coal conveyor |
| CN107963422B (en) * | 2017-12-21 | 2024-04-09 | 毕冠华 | System for eliminating induced voltage in program-controlled circuit of coal conveyor |
| CN112051763A (en) * | 2020-08-06 | 2020-12-08 | 陕西榆林能源集团横山煤电有限公司 | Circuit for eliminating induced electricity of alternating current control loop and implementation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202245197U (en) | Direct-current control system for belt conveyor | |
| CN202558543U (en) | Control circuit of elevator brake | |
| CN104843568A (en) | Digital servo elevator driver | |
| CN206422718U (en) | The soft-start control system of power frequency operation permagnetic synchronous motor | |
| CN204206054U (en) | A kind of frequency-changing control system of work position rotation table | |
| CN204327555U (en) | Electric fan is anti-touches automatic stopping circuit | |
| CN201156728Y (en) | Automatic cutting apparatus | |
| CN203922506U (en) | Frequency Converter Control hoisting crane speed limit anti-collision control system | |
| CN203911835U (en) | Stringing type motor vehicle-used frequency converter | |
| CN204200266U (en) | The two frequency conversion intelligent gas drainage equipment of flame-proof mine | |
| CN205099164U (en) | Elevator servo driver | |
| CN201198527Y (en) | DC brushless control system of sewing machine | |
| CN205123647U (en) | Frequency conversion switching control ware frequently of changing a job and device thereof | |
| CN204376522U (en) | There is the electric actuator of power-off under-voltage reset function | |
| CN203313108U (en) | Circuit for controlling a plurality of blower fans of warp sizing machine | |
| CN201156713Y (en) | DC motor controller of running machine | |
| CN202956651U (en) | Remote monitoring device for mines | |
| CN203026911U (en) | Automatic power off protector of winding machine | |
| CN202940771U (en) | Oil pumping machine double-speed motor energy-saving control device | |
| CN202652143U (en) | Variable frequency control circuit of ceiling fan motor | |
| CN202348733U (en) | Auto-induction fan control system | |
| CN208175947U (en) | Auto-manual rolling machine rub barrel positioning control circuit for tea rolling unit | |
| CN204832836U (en) | Safe energy -saving control ware | |
| CN203321954U (en) | Novel control circuit of hydraulic oil station motor of roller press | |
| CN204416886U (en) | A kind of magnet control system based on 6RA70 DC driver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140920 |
|
| EXPY | Termination of patent right or utility model |