CN202762521U - Operation interlocking device between low transmission device and coal mill - Google Patents
Operation interlocking device between low transmission device and coal mill Download PDFInfo
- Publication number
- CN202762521U CN202762521U CN 201220451032 CN201220451032U CN202762521U CN 202762521 U CN202762521 U CN 202762521U CN 201220451032 CN201220451032 CN 201220451032 CN 201220451032 U CN201220451032 U CN 201220451032U CN 202762521 U CN202762521 U CN 202762521U
- Authority
- CN
- China
- Prior art keywords
- transmission device
- low transmission
- coal mill
- coal pulverizer
- slow speed
- 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
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Abstract
The utility model discloses an operation interlocking device between a low transmission device and a coal mill. The device comprises a control loop of the low transmission device and a coil controlling the coal mill to operate, and a normally-closed contact of the coil controlling the coal mill to operate is connected to the control loop in series. The control loop of the low transmission device is connected to the mainframe operation normally-closed contact in series. When the mainframe operates, the normally-closed contact is disconnected, the low transmission device is powered off automatically, and the low transmission device can be protected. The device has the advantages that the low transmission device can stop operating automatically when the mainframe operates.
Description
Technical field
The utility model relates to a kind of at a slow speed transmission device, is specifically related to the operation interlock between a kind of at a slow speed transmission device and the coal pulverizer.
Background technology
Transmission device is a kind of a kind of equipment for coal pulverizer debugging, maintenance, replacing shell liner at a slow speed.
The structure of machine and operation principle: at a slow speed transmission device by motor for speed reducer, pass base, push rod device, dog-clutch etc. slowly and form.During work, transmission device drives coal pulverizer main gear reducer and exposed gear by reducing motor by dog-clutch at a slow speed, makes the cylindrical shell of coal pulverizer to be applicable to overhaul and change the rotating speed 0.23rpm rotation of liner plate.
This at a slow speed transmission device electric-control system existent defect be: transmission device and coal pulverizer do not have electric interlock at a slow speed, if after the main frame operation, pass slowly device and do not stop, causing easily to pass slowly counter-rotating, pass slowly gear thereby damage.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, the operation interlock between a kind of at a slow speed transmission device and the coal pulverizer being provided.
For achieving the above object, the utility model adopts following technical proposals:
Operation interlock between a kind of at a slow speed transmission device and the coal pulverizer, it comprises the at a slow speed control loop and the coil that the control coal pulverizer moves of transmission device, a normally-closed contact controlling the coil of coal pulverizer operation is connected in the described control loop.
Slowly passing in the device control loop main frame operation of series connection normally-closed contact, after the main frame operation, this normally-closed contact disconnects, transmission device auto-breaking at a slow speed, thus can protect at a slow speed transmission device.
The beneficial effects of the utility model are that after the main frame operation, biography quits work automatically slowly.
Description of drawings
Fig. 1 is control chart of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, operation interlock between a kind of at a slow speed transmission device and the coal pulverizer, it comprises the at a slow speed control loop and the coil that the control coal pulverizer moves of transmission device, and a normally-closed contact KA1 who controls the auxiliary reclay coil of coal pulverizer operation is connected in the described control loop.The run signal of the related coal pulverizer of normally-closed contact KA1.
After the main frame operation, normally-closed contact KA1 close point disconnects, and passing slowly the road back can not power on.Slowly the operation principle that passes is forward, stops, reverses.
KM1, KM2 finger tentaculum among the figure, SB1, SB2, SB3 refer to button, and HL0, HL1, HL2 refer to indicator lamp, and FR refers to electrothermal relay.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (1)
1. operation interlock between transmission device and the coal pulverizer at a slow speed, it comprises the at a slow speed control loop and the coil of controlling the coal pulverizer operation of transmission device, it is characterized in that a normally-closed contact of the coil of control coal pulverizer operation is connected in the described control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220451032 CN202762521U (en) | 2012-09-05 | 2012-09-05 | Operation interlocking device between low transmission device and coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220451032 CN202762521U (en) | 2012-09-05 | 2012-09-05 | Operation interlocking device between low transmission device and coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202762521U true CN202762521U (en) | 2013-03-06 |
Family
ID=47769125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220451032 Expired - Fee Related CN202762521U (en) | 2012-09-05 | 2012-09-05 | Operation interlocking device between low transmission device and coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202762521U (en) |
-
2012
- 2012-09-05 CN CN 201220451032 patent/CN202762521U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130306 Termination date: 20140905 |
|
| EXPY | Termination of patent right or utility model |