CN202921655U - Combined type automatic gain control (AGC) hydraulic cylinder displacement sensor - Google Patents
Combined type automatic gain control (AGC) hydraulic cylinder displacement sensor Download PDFInfo
- Publication number
- CN202921655U CN202921655U CN 201220543809 CN201220543809U CN202921655U CN 202921655 U CN202921655 U CN 202921655U CN 201220543809 CN201220543809 CN 201220543809 CN 201220543809 U CN201220543809 U CN 201220543809U CN 202921655 U CN202921655 U CN 202921655U
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- displacement transducer
- connection block
- displacement sensor
- inner sleeve
- 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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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a combined type automatic gain control (AGC) hydraulic cylinder displacement sensor which comprises an outer sleeve, an inner sleeve, a magnetic rod, a magnetic rod connection seat, an induction coil, cables, a displacement sensor upper installation seat and a displacement sensor lower seat. The inner sleeve is sleeved inside the outer sleeve, one end of the displacement sensor upper installation seat is installed on the piston rod of an AGC hydraulic cylinder, and one end of the displacement sensor lower installation seat is installed on the cylinder body of the AGC hydraulic cylinder. The combined type AGC hydraulic cylinder displacement sensor is quite convenient to install and dismantle, the magnetic rod is directly connected with the piston rod of the AGC hydraulic cylinder, and the combined type AGC hydraulic cylinder displacement sensor is good in following performance and accurate in measurement.
Description
Technical field
The utility model relates to rolling mill hydraulic AGC system displacement detecting element, especially relates to a kind of displacement transducer of combined type AGC hydraulic cylinder.
Background technology
The displacement transducer of rolling mill hydraulic AGC system is the important detecting element of milling train band THICKNESS CONTROL, and two displacement transducers are installed on the diagonal of each AGC hydraulic cylinder of milling train.In prior art, the displacement sensor structure schematic diagram as shown in fig. 1, it mainly is comprised of end cap 1, cable 2, housing 3, induction coil 4, spring 5, magnetic bar 6, protective jacket 7 etc.The pre-compression force of protective jacket 7 by spring 5 holds out against and is fitted in the protruding eaves lower surface of hydraulic cylinder cylinder cap, hydraulic cylinder cylinder cap and piston rod connect to one, one end of magnetic bar 6 is fixed on protective jacket 7, following protective jacket 7 moves with hydraulic cylinder piston rod, magnetic bar 6 moves in induction coil 4 and produces the signal of telecommunication, detect in real time the relative position of AGC hydraulic cylinder piston rod, just know the relative size of mill roll-gap by computer program, the degree of accuracy of mill roll-gap depends primarily on the performance of displacement transducer, and the performance of displacement transducer depends on the reliability that self works.
There is lower column defects in existing displacement transducer:
When (1) AGC hydraulic cylinder bar stretches out, magnetic bar 6 is followed the protruding eaves lower surface of AGC hydraulic cylinder cylinder cap and is moved under the elastic force of spring 5, because the action of AGC hydraulic cylinder is more frequent, and there is the bad defective of followability when self moving in spring 5, cause mobile existence of magnetic bar 6 to lag behind, cause at last measuring inaccurate;
(2) due to the existence of spring 5, must use special-purpose instrument during the installing/dismounting displacement transducer.Thereby the mainteinance repair workload affects greatly the operating efficiency of milling train like this, and using to the user makes troubles.
Summary of the invention
For addressing the above problem, the purpose of this utility model be to provide a kind of measurement accurate, easy for installation, safeguard simple a kind of combined type AGC hydraulic cylinder displacement transducer.
For achieving the above object, the utility model adopts following technical scheme:
a kind of combined type AGC hydraulic cylinder displacement transducer, it comprises overcoat, be set in the inner sleeve in overcoat, be arranged on, the magnetic bar, magnetic bar Connection Block, induction coil, cable, one end is arranged on mount pad and an end on displacement transducer on the AGC hydraulic cylinder piston rod and is arranged on mount pad under displacement transducer on the AGC hydraulic cylinder body, the overcoat Connection Block that arranges on the outer surface of described overcoat by its upper end is fixedly connected on the other end of mount pad on displacement transducer, the inner sleeve Connection Block that inner sleeve arranges by its bottom is fixedly connected on the other end of mount pad under displacement transducer, be fixedly connected with magnetic bar Connection Block on the inner surface of overcoat upper end, be fixedly connected with an end of magnetic bar on magnetic bar Connection Block, the upper end of described inner sleeve is connected with induction coil, and the other end of magnetic bar passes induction coil, is connected with cable on induction coil.
For implementing better the invention, its overcoat, overcoat Connection Block, inner sleeve, inner sleeve Connection Block and magnetic bar Connection Block are made by stainless steel material.
For implementing better the invention, the overcoat Connection Block is connected mount pad with displacement transducer connection, inner sleeve Connection Block and displacement transducer are connected the connection of mount pad to be the spherical pair connection.
Owing to adopting technical scheme as above, the utlity model has following superiority:
(1) internal structure of this displacement transducer has been lacked spring, mounts and dismounts very conveniently, needn't use special-purpose instrument, is user-friendly to;
(2) internal structure of this displacement transducer has been lacked spring, and the magnetic bar directly is connected with the AGC hydraulic cylinder piston rod, and followability is good, measures accurately;
(3) connection between this displacement transducer and displacement transducer mount pad belongs to the spherical pair connection, has guaranteed the reliability of displacement transducer work.
Description of drawings
Fig. 1 is existing displacement sensor structure schematic diagram;
Fig. 2 is the structural representation of the utility model combined type AGC hydraulic cylinder displacement transducer;
In figure: the 1-end cap; The 2-cable; The 3-housing; The 4-induction coil; The 5-spring; 6-magnetic bar; The 7-protective jacket; Mount pad on the 8-displacement transducer; 9-overcoat Connection Block; 10-magnetic bar Connection Block; The 11-overcoat; The 12-inner sleeve; 13-inner sleeve Connection Block; Mount pad under the 14-displacement transducer.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
as shown in Figure 2, a kind of combined type AGC hydraulic cylinder displacement transducer, it comprises overcoat 11, be set in the inner sleeve 12 in overcoat, , magnetic bar 6, magnetic bar Connection Block 10, induction coil 4, cable 2, one end is arranged on mount pad 8 and an end on displacement transducer on the AGC hydraulic cylinder piston rod and is arranged on mount pad 14 under displacement transducer on the AGC hydraulic cylinder body, the overcoat Connection Block 9 that arranges on the outer surface of described overcoat 11 by its upper end is fixedly connected on the other end of mount pad 8 on displacement transducer, the inner sleeve Connection Block 13 that inner sleeve 12 arranges by its bottom is fixedly connected on the other end of mount pad 14 under displacement transducer, be fixedly connected with magnetic bar Connection Block 10 on the inner surface of overcoat 11 upper ends, be fixedly connected with an end of magnetic bar 6 on magnetic bar Connection Block 10, the upper end of described inner sleeve 12 is connected with induction coil 4, and the other end of magnetic bar 6 passes induction coil 4, is connected with cable 2 on induction coil 4.
Described overcoat 11, overcoat Connection Block 9, inner sleeve 12, inner sleeve Connection Block 13 and magnetic bar Connection Block 10 are made by stainless steel material.
Described overcoat Connection Block 9 is connected mount pad 8 with displacement transducer connection, inner sleeve 12 Connection Blocks are connected the connection of mount pad 14 to be the spherical pair connection with displacement transducer, in the time of can not moving because of moving component, the crooked certainty of measurement that affects not occuring, has guaranteed the reliability of displacement transducer work when measuring.
The measuring principle of AGC hydraulic cylinder displacement transducer of the present utility model is achieved in that when the piston rod of AGC hydraulic cylinder moves up and down, drive mount pad 8 on displacement transducer, overcoat Connection Block 9, overcoat 11 and 10 motions of magnetic bar Connection Block, and then drive magnetic bar 6 motions, because inductive coil 4 is fixed, therefore, magnetic bar 6 produces relative motion with induction coil and produces transducing signal by cable 2 outputs in induction coil 4.
Claims (3)
1. combined type AGC hydraulic cylinder displacement transducer, comprise overcoat (11), be set in the inner sleeve (12) in overcoat, , magnetic bar (6), magnetic bar Connection Block (10), induction coil (4), cable (2), one end is arranged on mount pad (8) and an end on displacement transducer on the AGC hydraulic cylinder piston rod and is arranged on mount pad (14) under displacement transducer on the AGC hydraulic cylinder body, it is characterized in that: the overcoat Connection Block (9) that arranges on the outer surface of described overcoat (11) by its upper end is fixedly connected on the other end of mount pad on displacement transducer (8), the inner sleeve Connection Block (13) that inner sleeve (12) arranges by its bottom is fixedly connected on the other end of mount pad under displacement transducer (14), be fixedly connected with magnetic bar Connection Block (10) on the inner surface of overcoat (11) upper end, be fixedly connected with an end of magnetic bar (6) on magnetic bar Connection Block, the upper end of described inner sleeve (12) is connected with induction coil (4), the other end of magnetic bar passes induction coil 4, is connected with cable (2) on induction coil.
2. combined type AGC hydraulic cylinder displacement transducer according to claim 1, it is characterized in that: described overcoat (11), overcoat Connection Block (9), inner sleeve (12), inner sleeve Connection Block (13) and magnetic bar Connection Block (10) are made by stainless steel material.
3. combined type AGC hydraulic cylinder displacement transducer according to claim 1 is characterized in that: described overcoat Connection Block (9) is connected mount pad (8) with displacement transducer connection, inner sleeve (12) Connection Block are connected the connection of mount pad (14) to be spherical pair to connect with displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543809 CN202921655U (en) | 2012-10-23 | 2012-10-23 | Combined type automatic gain control (AGC) hydraulic cylinder displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543809 CN202921655U (en) | 2012-10-23 | 2012-10-23 | Combined type automatic gain control (AGC) hydraulic cylinder displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202921655U true CN202921655U (en) | 2013-05-08 |
Family
ID=48211651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220543809 Expired - Fee Related CN202921655U (en) | 2012-10-23 | 2012-10-23 | Combined type automatic gain control (AGC) hydraulic cylinder displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202921655U (en) |
-
2012
- 2012-10-23 CN CN 201220543809 patent/CN202921655U/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: 20130508 Termination date: 20161023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |