CN203445817U - Asphalt mixing plant vibrating screen motor brake device - Google Patents
Asphalt mixing plant vibrating screen motor brake device Download PDFInfo
- Publication number
- CN203445817U CN203445817U CN201320560116.1U CN201320560116U CN203445817U CN 203445817 U CN203445817 U CN 203445817U CN 201320560116 U CN201320560116 U CN 201320560116U CN 203445817 U CN203445817 U CN 203445817U
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- contactor
- vibrating screen
- braking
- brake
- signal
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of brake of a motor, and particularly relates to an asphalt mixing plant vibrating screen motor brake device. The device comprises a signal source, a breaker, a contactor and a timing controller. The signal source provides an operation signal and a brake signal. The contactor comprises an operation contactor and a brake contactor. After the timing controller receives the signal of the signal source, connecting or disconnecting the operation contactor or the brake contactor is selected. The breaker is respectively connected with the operation contactor and the brake contactor. The timing controller can perform reverse-connecting brake starting timing, brake operation timing and connecting and disconnecting the operation contactor and the brake contactor. Sympathetic vibration in the process of shutdown of a vibrating screen can be eliminated so that smooth shutdown of the vibrating screen and main equipment can be realized and the service life of the vibrating screen and main equipment is prolonged.
Description
Technical field
The utility model belongs to the braking technology field of motor, specially refers to the braking technology field that is applicable to asphalt mixing plant vibrating screen motor.
Background technology
Vibrating screen is the fine sieve separating device of pitch mixing apparatus, by threephase asynchronous, is dragged, and its operation and braking ability directly affect the quality of whole asphalt mixing plant.In the free stopping process that asphalt mixing plant vibrating screen is directly cut off the electricity supply, resonant interaction due to vibrating screen, make stopping process not steady, during resonance, amplitude increases, even cause that main building rocks, shorten vibrating screen useful life, cause the harm such as hot aggregate storage bin cracking and main building deformation of timbering on main building; Make extend the downtime of vibrating screen, the stand-by period of starting device is longer again simultaneously.For fear of the generation of resonating in blending station vibrating screen stopping process; amplitude when reducing vibrating screen and shutting down and shorten downtime; reduce the impact to vibrating screen motor and machine driven system; in the useful life that extends vibrating screen and blending station main building miscellaneous equipment, need to adopt new brake apparatus and braking method.
Summary of the invention
The purpose of this utility model is to provide a kind of asphalt blending station vibrating screen dynamic braking device and braking method; make to eliminate and resonate in blending station stopping process; reach steady and quick shutdown; reduce the impact to vibrating screen motor and machine driven system, thereby extend the useful life of vibrating screen and other equipment of main building.
In order to reach the purpose of this utility model, the utility model by the following technical solutions:
A kind of asphalt blending station vibrating screen dynamic braking device comprises signal source, circuit breaker, contactor and timing controller; Signal source provides run signal and brake signal, and contactor comprises operation contactor and braking contactor; Timing controller selects to be switched on or switched off operation contactor or braking contactor after receiving the signal of signal source; Circuit breaker is connected with braking contactor with operation contactor respectively; Described timing controller can carry out plug braking and start timing, running under braking timing and switch on and off operation contactor and braking contactor.
The beneficial effects of the utility model are:
Adopt this device to brake; can eliminate the covibration in vibrating screen stopping process, reduce the amplitude in stopping process, realize steadily and shutting down; thereby reduce the impact to vibrating screen and other equipment of main building in braking procedure, extend the useful life of vibrating screen and main building equipment.Vibrating screen motor carries out, after plug braking, can shortening the downtime of equipment, is conducive to equipment and again puts into production, and has improved production efficiency.Brake apparatus time delay is connected to plug braking, avoid motor to connect negative-phase sequence power supply in higher rotation speed, thereby reduce plug braking electric current, effectively avoid the large impact of crossing to motor and machine driven system, extend its useful life.
Accompanying drawing explanation
Fig. 1 is the structure composition diagram of the utility model brake apparatus.
Embodiment
As shown in Figure 1, the asphalt blending station vibrating screen dynamic braking device of controlling based on the time comprises circuit breaker, contactor, signal source, timing controller; Signal source provides vibrating screen motor run signal and brake signal; Contactor comprises operation contactor and braking contactor; Timing controller selects to be switched on or switched off operation contactor or braking contactor after receiving the control signal of signal source, and circuit breaker is connected with braking contactor with operation contactor respectively, and the startup of vibrating screen motor, operation and braking are shielded.Operation contactor and braking contactor, be respectively vibrating screen motor normal operation power supply and plug braking power supply be provided.
Described timing controller is the core of whole device, and Main Function is that plug braking starts timing, running under braking timing and switches on and off operation contactor and braking contactor.Timing controller can be the time relay, PLC and other device that has timing and control function.Signal source can be the output signal of combination, PC control interface button, PLC or other smart machine of knob, button, unit switch, various switches.Circuit breaker can be that motor definite purpose circuit breaker, normal circuit breaker add thermal relay, fuse and other electric motor protective device.
This brake apparatus operation principle is as follows: the signal source of this device provides vibrating screen run signal and brake signal, when this device receives the run signal of signal source, device drives the adhesive of operation contactor, and for vibrating screen motor provides operation power supply, vibrating screen is in running status, if timing controller receives the brake signal of signal source, when cutting off vibrating screen motor operation power supply, start timing, the time of clocking arrives after setting-up time, timing controller drives plug braking contactor, motor enters plug braking state, timing controller starts braking time timing simultaneously, under plug braking state, motor speed declines rapidly, the running under braking time arrives after set point, timing controller cuts off vibrating screen motor brake power supply, motor freedom of entry stopped status, last motor stops operating under the dragging of machine driven system.
Above are only an embodiment of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out substantial change to the utility model, all should belong to the behavior of invading the utility model protection range.
Claims (4)
1. an asphalt blending station vibrating screen dynamic braking device, is characterized in that: this device comprises signal source, circuit breaker, contactor and timing controller; Signal source provides run signal and brake signal, and contactor comprises operation contactor and braking contactor; Timing controller selects to be switched on or switched off operation contactor or braking contactor after receiving the signal of signal source; Circuit breaker is connected with braking contactor with operation contactor respectively.
2. asphalt blending station vibrating screen dynamic braking device according to claim 1, is characterized in that: described timing controller can carry out plug braking and start timing, running under braking timing and switch on and off operation contactor and braking contactor.
3. asphalt blending station vibrating screen dynamic braking device according to claim 1 and 2, is characterized in that: timing controller can be the time relay or Programmable Logic Controller PLC and other devices that has timing and control function.
4. asphalt blending station vibrating screen dynamic braking device according to claim 1 and 2, is characterized in that: signal source can be one of output signal of knob, button, unit switch, PC control interface button, Programmable Logic Controller PLC or other smart machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560116.1U CN203445817U (en) | 2013-09-10 | 2013-09-10 | Asphalt mixing plant vibrating screen motor brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560116.1U CN203445817U (en) | 2013-09-10 | 2013-09-10 | Asphalt mixing plant vibrating screen motor brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203445817U true CN203445817U (en) | 2014-02-19 |
Family
ID=50096832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560116.1U Expired - Fee Related CN203445817U (en) | 2013-09-10 | 2013-09-10 | Asphalt mixing plant vibrating screen motor brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203445817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441710A (en) * | 2013-09-10 | 2013-12-11 | 徐工集团工程机械股份有限公司道路机械分公司 | Brake device and brake method for vibratory screen motor of asphalt mixing station |
| EP3875173A1 (en) * | 2020-03-04 | 2021-09-08 | Bühler AG | Feed or foodstuff mill |
-
2013
- 2013-09-10 CN CN201320560116.1U patent/CN203445817U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441710A (en) * | 2013-09-10 | 2013-12-11 | 徐工集团工程机械股份有限公司道路机械分公司 | Brake device and brake method for vibratory screen motor of asphalt mixing station |
| CN103441710B (en) * | 2013-09-10 | 2016-08-17 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of asphalt blending station vibratory sieve dynamic braking device and braking method |
| EP3875173A1 (en) * | 2020-03-04 | 2021-09-08 | Bühler AG | Feed or foodstuff mill |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20190910 |