CN207951605U - A kind of medium-speed coal mill roller lifting position sensing device - Google Patents
A kind of medium-speed coal mill roller lifting position sensing device Download PDFInfo
- Publication number
- CN207951605U CN207951605U CN201721572630.1U CN201721572630U CN207951605U CN 207951605 U CN207951605 U CN 207951605U CN 201721572630 U CN201721572630 U CN 201721572630U CN 207951605 U CN207951605 U CN 207951605U
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- China
- Prior art keywords
- tablet
- sensor
- hydraulic cylinder
- sensing device
- piston rod
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Abstract
A kind of medium-speed coal mill roller lifting position sensing device includes the tablet on hydraulic cylinder piston rod, the sensor being mounted on cylinder barrel, and improvements introduced is：The tablet is the cambered plate with hydraulic cylinder coaxial line.Preferably 48 ° of the cambered surface angle of tablet, tablet circumferential outer surface and sensor distance 15mm.The good effect of the utility model is：With the tablet of the cambered plate form of hydraulic cylinder coaxial line, free it can widen, when hydraulic cylinder piston rod generates rotation displacement with respect to cylinder barrel, tablet has the part in sensor sensing range always, ensure that inductive signal does not interrupt, and tablet its surface in rotation is constant at a distance from sensor, and the signal spread out of is steady, is conducive to the monitoring to grinding roller.
Description
Technical field
The utility model belongs to machinery equipment field, and in particular to the middling speed wheeled coal pulverizer sensing system that thermal power plant uses
System.
Background technology
The medium-speed pulverizer being made of rack, mill, grinding roller, pressue device, driving mechanism is that thermal power plant is common
Coal dust producing equipment.Lifting bounce is control room primary part observation object in the operation of grinding roller therein.Based on hydraulic cylinder and grinding roller
Between indirect connection structure, hydraulic cylinder piston is identical to the lifting distance of grinding roller with respect to the axial displacement between cylinder barrel.It is existing
In technology, the signal extraction of grinding roller operation lifting is completed by the grinding roller lifting position sensing device on hydraulic cylinder
's.The grinding roller lifting position sensing device by hydraulic cylinder piston rod tablet and be mounted on hydraulic cylinder barrel
On sensor constitute.
In the past, the tablet in the grinding roller lifting sensing device on such coal pulverizer was one piece of surface plate, was run in equipment
When, since, there are larger gap, loaded ring, which will produce, to be circumferentially rotated between the loaded ring and loading frame that are connected with pull rod, to
Cause the piston rod of hydraulic cylinder to be rotated relative to cylinder barrel, tablet is made to deviate the position initially installed, leaves sensor sense and receive model
It encloses, signal interruption.If selecting the tablet widened, when piston rod is larger with respect to cylinder barrel amount of spin, tablet can be sent out with sensor
Raw collision.
Utility model content
The purpose of this utility model is to provide a kind of medium-speed coal mill roller lifting position sensing device, in Central Control Room
In monitoring to grinding roller jacking condition, overcome existing sensing device above shortcomings.
The utility model grinding roller lifting position sensing device includes the tablet being mounted on hydraulic cylinder piston rod, is mounted on
Sensor on cylinder barrel, improvements introduced are：The tablet is the cambered plate with hydraulic cylinder coaxial line.
Preferably 48 ° of the cambered surface angle of tablet in the utility model, tablet circumferential outer surface is at a distance from sensor
15mm。
The good effect of the utility model is：It, can not be by about with the tablet of the cambered plate form of hydraulic cylinder coaxial line
Beam is widened, and when hydraulic cylinder piston rod generates rotation displacement with respect to cylinder barrel, tablet has always in sensor sensing range
Part, it is ensured that inductive signal does not interrupt, and tablet its surface in rotation is constant at a distance from sensor, is spread out of
Signal is steady, is conducive to the monitoring to grinding roller.
Description of the drawings.
Fig. 1 is tablet side view in the utility model.
Fig. 2 is tablet vertical view in the utility model.
Fig. 3 is installation diagram of the tablet on hydraulic cylinder in the utility model.
Specific implementation mode
Refering to fig. 1, Fig. 2, Fig. 3, the utility model grinding roller lifting position sensing device include being mounted on hydraulic cylinder piston rod 1
On tablet 2, be mounted on Barrel of Hydraulic Cylinders on 3 sensor 4.Wherein, the tablet 2 is and hydraulic cylinder coaxial line
Cambered plate, 48 ° of the arc angle of cambered plate.Tablet is mounted on holder 5 on piston rod 1.Sensor 4 is mounted on holder 6
On cylinder barrel 3.Tablet circumferential outer surface and sensor distance 15mm.
Claims (1)
1. a kind of medium-speed coal mill roller lifting position sensing device includes the tablet on hydraulic cylinder piston rod, peace
Sensor on cylinder barrel, it is characterized in that：The tablet is the cambered plate with hydraulic cylinder coaxial line, the circular arc of cambered plate
48 ° of angle, the tablet are mounted on holder on the piston rod, and the sensor is mounted on holder on the cylinder barrel,
The tablet circumferential outer surface is 15mm at a distance from the sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572630.1U CN207951605U (en) | 2017-11-22 | 2017-11-22 | A kind of medium-speed coal mill roller lifting position sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572630.1U CN207951605U (en) | 2017-11-22 | 2017-11-22 | A kind of medium-speed coal mill roller lifting position sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207951605U true CN207951605U (en) | 2018-10-12 |
Family
ID=63724633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721572630.1U Active CN207951605U (en) | 2017-11-22 | 2017-11-22 | A kind of medium-speed coal mill roller lifting position sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207951605U (en) |
-
2017
- 2017-11-22 CN CN201721572630.1U patent/CN207951605U/en active Active
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| GR01 | Patent grant |