CN202420419U - Hydraulic head thrust position sensor - Google Patents
Hydraulic head thrust position sensor Download PDFInfo
- Publication number
- CN202420419U CN202420419U CN2011205485551U CN201120548555U CN202420419U CN 202420419 U CN202420419 U CN 202420419U CN 2011205485551 U CN2011205485551 U CN 2011205485551U CN 201120548555 U CN201120548555 U CN 201120548555U CN 202420419 U CN202420419 U CN 202420419U
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- hall element
- magnet
- zero clearing
- utmost point
- read head
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Abstract
The utility model discloses a hydraulic head thrust position sensor, which includes an elongated frame and a read head housing, wherein the read head housing can reciprocate on the elongated frame; N pole positive magnets and S pole positive magnets are alternately arrayed at the same interval on the axial surface of the elongated frame, and zero clearing mark magnets are symmetrically arranged at one ends thereof; a position movable Hall sensor and zero clearing Hall sensors are arranged in the read head housing, the position movable Hall sensor is arranged on the same horizontal line as the N pole positive magnets and the S pole positive magnets, and the intervals between the position movable Hall sensor and the N pole positive magnets and the S pole positive magnets are the same as that between the N pole positive magnets and the S pole positive magnets; and the zero clearing Hall sensors are arranged on the two sides at one end of the position movable Hall sensor and on the same horizontal line as the zero clearing mark magnets respectively. The hydraulic head thrust position sensor adopts a sealed structure, and adapts to severe use environment and has high measuring precision through the magnetic field variation sensing signals.
Description
Technical field
The utility model belongs to the hall effect sensor technical field, is specifically related to a kind of garbage compression station compression hydraulic pressure of shift position position transducer of cutting somebody's hair of cutting somebody's hair that is used for detecting in real time.
Background technology
At present, known position transducer has potentiometer type displacement transducer and magnetostrictive displacement sensor.The potentiometer type displacement transducer is mechanical shift to be changed the variation of the resistance value that converts certain funtcional relationship into, thereby causes the variation of output voltage, and what common potentiometer type displacement transducer used is contact-cup anemometer, easy abrasion in the work.Magnetostrictive displacement sensor is accurately the absolute position of detected activity magnet ring to measure the actual displacement value of product to be detected through contactless observation and control technology.Above-mentioned two kinds of sensors can only be applied in the general environment, are not suitable at environment badly, and there was dampness in the air, and have in the work of corrosivity garbage compression station, and cost is higher, are easy to damage.
The utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of and can adapt to abominable environment for use and the high hydraulic pressure of the measuring accuracy position transducer of cutting somebody's hair.
A kind of hydraulic pressure position transducer of cutting somebody's hair; Comprise strip framework and read head shell; Said read head shell is implemented in moving back and forth on the strip framework through the bearing that its bottom is provided with; Said strip gimbal axis is shown N utmost point forward magnet and S utmost point forward magnet to spaced surface equidistance staggered rows, and the one of which end is arranged with zero clearing sign magnet; Be provided with radially T-shaped arrangement in the said read head shell; The Hall element that is used for magnetic field sensor signal; Said Hall element comprises that the position moves Hall element and zero clearing Hall element; Hall element and N utmost point forward magnet and S utmost point forward magnet array are moved on same horizontal line in said position; And its spacing equals the spacing of N utmost point forward magnet and S utmost point forward magnet on the strip framework, and said zero clearing Hall element is symmetricly set on the both sides that Hall element one end is moved in the position, respectively with zero clearing sign magnet on same horizontal line.
Magnet periphery on the said strip framework is coated with the insulation colloid.
The utility model can be fixed on the read head shell on the gas booster compressor main body in use, is connected with signals collecting and treatment circuit, and the strip frame fixation is cut somebody's hair simultaneously with compression and to be moved on compression is cut somebody's hair, and this moment, the read head shell slided on the surface of strip framework.All parts of this sensor all adopt hermetically-sealed construction, through the changes of magnetic field induced signal, realize that read head and strip framework are non-contact structure, adapt to very much in the garbage compression station rugged environment and work to the cut somebody's hair accurate measurement of position of hydraulic pressure.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is further specified.Should be understood that following examples only are used to the utility model is described but not the scope that is used to limit the utility model.
Referring to Fig. 1; A kind of hydraulic pressure that the utility model provides position transducer of cutting somebody's hair; Comprise strip framework 1 and read head shell 2, said read head shell 2 is implemented in moving back and forth on the strip framework 1 through the bearing 3 that its bottom is provided with, and said strip framework 1 axial surface equidistance staggered rows is at interval shown N utmost point forward magnet 4 and S utmost point forward magnet 5; The one of which end is arranged with zero clearing sign magnet 6, is coated with the insulation colloid around the magnet; Be provided with radially T-shaped arrangement in the said read head shell 2; The Hall element 7 that is used for magnetic field sensor signal; Said Hall element 7 comprises that the position moves Hall element 7-1 and zero clearing Hall element 7-2; Said position is moved Hall element 7-1 and N utmost point forward magnet 4 and S utmost point forward magnet 5 and is arranged on the same horizontal line; And its spacing equals the spacing of N utmost point forward magnet 4 and S utmost point forward magnet 5 on the strip framework 1, and said zero clearing Hall element 7-2 is symmetricly set on the both sides that Hall element 7-1 one end is moved in the position, respectively with zero clearing sign magnet 6 on same horizontal line.
When zero clearing Hall element 7-2 senses zero clearing sign magnet 6 simultaneously, can judge it is null position.When read head shell 2 is sliding on strip framework 1 surface and have a position to move in the zone of Hall element 7-1 at certain square magnet; Its output data reaches extreme value; Its output data is maximum when the position is moved Hall element 7-1 and is in the place-centric of N utmost point forward magnet 4; Its output data is minimum when the position is moved Hall element 7-1 and is in the place-centric of S utmost point forward magnet 5; Hall element 7-1 is moved then between the two poles of the earth in another position, and its output signal is judged the exact position of read head shell 2 thus with the magnet distance is ratio and changes apart from both sides.Signals collecting and treatment circuit change through the output valve of gathering Hall element 7 and can judge the quantity that moves past magnet and read head shell 2 apart from both sides magnet distance in moving process, thereby calculate the position of read head shell 2.The compressibility controller just can be confirmed the position and the translational speed of compressing head from the position of read head shell 2, with the motion and the compression process of control compressing head.
Claims (2)
1. hydraulic pressure position transducer of cutting somebody's hair; It is characterized in that: comprise strip framework and read head shell; Said read head shell is implemented in moving back and forth on the strip framework through the bearing that its bottom is provided with; Said strip gimbal axis is shown N utmost point forward magnet and S utmost point forward magnet to spaced surface equidistance staggered rows, and the one of which end is arranged with zero clearing sign magnet; Be provided with radially T-shaped arrangement in the said read head shell; The Hall element that is used for magnetic field sensor signal; Said Hall element comprises that the position moves Hall element and zero clearing Hall element; Hall element and N utmost point forward magnet and S utmost point forward magnet array are moved on same horizontal line in said position; And its spacing equals the spacing of N utmost point forward magnet and S utmost point forward magnet on the strip framework, and said zero clearing Hall element is symmetricly set on the both sides that Hall element one end is moved in the position, respectively with zero clearing sign magnet on same horizontal line.
2. the hydraulic pressure according to claim 1 position transducer of cutting somebody's hair, it is characterized in that: the magnet periphery on the said strip framework is coated with the insulation colloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205485551U CN202420419U (en) | 2011-12-23 | 2011-12-23 | Hydraulic head thrust position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205485551U CN202420419U (en) | 2011-12-23 | 2011-12-23 | Hydraulic head thrust position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420419U true CN202420419U (en) | 2012-09-05 |
Family
ID=46745176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205485551U Expired - Fee Related CN202420419U (en) | 2011-12-23 | 2011-12-23 | Hydraulic head thrust position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134454A (en) * | 2013-02-01 | 2013-06-05 | 中联重科股份有限公司 | Garbage compressor and position detection method, device and system of pushing head of garbage compressor |
-
2011
- 2011-12-23 CN CN2011205485551U patent/CN202420419U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134454A (en) * | 2013-02-01 | 2013-06-05 | 中联重科股份有限公司 | Garbage compressor and position detection method, device and system of pushing head of garbage compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20131223 |