CN202741437U - Roll gap test sensor for cold mill - Google Patents
Roll gap test sensor for cold mill Download PDFInfo
- Publication number
- CN202741437U CN202741437U CN 201220276561 CN201220276561U CN202741437U CN 202741437 U CN202741437 U CN 202741437U CN 201220276561 CN201220276561 CN 201220276561 CN 201220276561 U CN201220276561 U CN 201220276561U CN 202741437 U CN202741437 U CN 202741437U
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- current vortex
- sleeve pipe
- upper sleeve
- measuring staff
- strong magnetic
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Abstract
The utility model relates to a roll gap test sensor for a cold mill. The roll gap test sensor comprises a strong magnetic seat A, a test block, an upper sleeve, an eddy current test rod and a strong magnetic seat B, wherein the upper part of the eddy current test rod is sheathed with the upper sleeve, and is fixedly connected with a positioning nut by a thread, the inside of the upper end of the upper sleeve is provided with the test block, the lower end surface of the test block is corresponding to an eddy current test head of the eddy current test rod, the upper end surface of the upper sleeve is fixedly connected with the strong magnetic seat A, the lower end surface of the eddy current test rod is fixedly connected with the strong magnetic seat B, the eddy current test rod consists of a test rod body and the eddy current test head, the lower end of the test rod body is provided with a thread hole which is connected with the strong magnetic seat B, the upper end of the test rod body is provided with the eddy current test head, the middle part of the test rod body is provided with a through hole, a test head conducting wire penetrates through the through hole, the lower part of the test rod body is provided with an electrical jack hole for connecting the eddy current test head with an external circuit, the outside of the middle part of the test rod body is provided with a positioning thread, and the positioning thread is used for positioning and connecting the upper sleeve. The roll gap test sensor has the advantages that the structure is simple, the installation is convenient, and the test precision is high.
Description
Technical field
The utility model relates to a kind of testing sensor, especially a kind of sensor of the fast and convenient installation for cold-rolling mill roll gap displacement measurement.
Background technology
The roll gap test is important step during steel rolling is produced with control, and the result of roll gap control will directly affect the quality of product.And roll gap control is exactly the roll gap test value according to parameter, so the roll gap test is just particularly important.Existing roll gap meter is generally indirect measurement form on the rolling mill, and the form of directly measuring is often installing, using requirement all very high, is difficult to promote the use of.
Summary of the invention
The utility model is that a kind of novel cold-rolling mill roll gap testing sensor will be provided, and this sensor construction is simple, install fast, convenient, and measuring accuracy is high.
The technical solution of the utility model is: a kind of cold-rolling mill roll gap testing sensor, comprise strong magnetic seat A, measure piece, upper sleeve pipe, current vortex measuring staff, strong magnetic seat B, be characterized in: current vortex measuring staff top cover has upper sleeve pipe, and be fixedly connected with by setscrew nut, place in the upper sleeve pipe upper end and measure piece, and measure the current vortex gauge head on the corresponding current vortex measuring staff in piece lower surface, upper sleeve pipe upper surface is fixedly connected with strong magnetic seat A, and current vortex measuring staff lower surface is fixedly connected with strong magnetic seat B.
Measure piece by the nahlock shape a little less than the magnetic conductive metal conductor material make, 3 times of its diameter 〉=current vortex measuring head diameter, its thickness between 1.5 ~ 2 millimeters, and with upper internal surface of sleeve pipe interference fit.
Upper sleeve pipe is barrel-shaped structure; made by high-strength insulating material; its top is provided with the screwed hole that is connected with strong magnetic seat A; inside is provided with step; the step place has been equipped with guiding and the flexible seal ring of protecting and guide current vortex measuring staff gauge head; be provided with a screw thread below the upper sleeve pipe, be used for connecting the current vortex measuring staff by setscrew nut.
The current vortex measuring staff is comprised of measuring staff body and current vortex gauge head, measuring staff body lower end is provided with a screwed hole that links with strong magnetic seat B, the upper end is equipped with the current vortex gauge head, the centre is provided with a through hole that is used for connecting the gauge head wire, the bottom has one to be used for the electric interfaces hole that the current vortex gauge head is connected with external circuit, intermediary outside has a location screw thread, for the upper sleeve pipe that is located by connecting by setscrew nut.
The beneficial effects of the utility model are:
(1) owing to adopted the sensing element of current vortex gauge head as sensor in the utility model, thus sensor highly sensitive, response is fast, precision is high.
(2) utilize the structure of two ends strong magnetic seat, easy for installation, reliable and fast and simple.
(3) upper sleeve pipe adopts high-strength insulating material can form the non-conductive medium space of certain limit, can effectively avoid test to disturb.
(4) upper sleeve pipe and current vortex measuring staff connect integral body of formation by setscrew nut, upper sleeve pipe and current vortex measuring staff are on same measurement axis in the time of can guaranteeing to measure, the reliability of raising work and certainty of measurement, and can adjust setting height(from bottom) by setscrew nut.
(5) flexible seal ring plays the effect of protection current vortex measuring staff gauge head, and can prevent impact and the interference of surrounding medium.
(6) as long as equipment under test is the metal magnetic conducting member and good relative mounting plane is arranged that this sensor can be finished the relative displacement test between all kinds of structural members.
Therefore, sensor construction of the present utility model is simple, easy for installation, and measuring accuracy is high.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the scheme of installation of the utility model on cold-rolling mill;
Fig. 3 is strong magnetic holder structure schematic diagram;
Fig. 4 is upper sleeve structure schematic diagram;
Fig. 5 is current vortex measuring staff structural representation.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Such as Fig. 1, shown in 2, mill roll-gap testing sensor 10 of the present utility model is installed in (Fig. 2) on the cold-rolling mill 11, and it comprises strong magnetic seat A1, measures piece 2, upper sleeve pipe 3, current vortex measuring staff 4, strong magnetic seat B 5, electric interfaces 6, setscrew nut 7, flexible seal ring 8 etc.
Current vortex measuring staff 4 tops cover has upper sleeve pipe 3, and be fixedly connected with setscrew nut 7 by screw thread, place in upper sleeve pipe 3 upper ends and measure piece 2, and measure the current vortex gauge head of the corresponding current vortex measuring staff 4 in piece 2 lower surfaces, upper sleeve pipe 3 upper surfaces are fixedly connected with strong magnetic seat A1, and current vortex measuring staff 4 lower surfaces are fixedly connected with strong magnetic seat B 5.
As shown in Figure 3, strong magnetic seat A1 is adsorbed on cold-rolling mill frame window upper position, and is connected with upper sleeve pipe 3 by the screw rod 12 on it.Strong magnetic seat B5 is adsorbed on cold-rolling mill top chock position, and its head is provided with for the screw rod 12 that connects current vortex measuring staff 4.
Measure piece 2 by the nahlock shape a little less than the magnetic conductive metal conductor material make, such as copper, aluminium, steel alloy etc., 1.5 times of its diameter 〉=current vortex measuring head diameter, its thickness between 1 ~ 1.5 millimeter, and with upper sleeve pipe 3 inwall interference fit.
As shown in Figure 4, upper sleeve pipe 3 is barrel-shaped structure, is made by high-strength insulating material, and its screw top hole 13 links with strong magnetic seat A1.Screwed hole 13 below upper inside wall adopt interference fit to install and measure piece.Inside is provided with step, and the step place has been equipped with guiding and the flexible seal ring 8 of protecting and guide current vortex measuring staff gauge head.One screw thread 14 is arranged below the upper sleeve pipe 3, be used for connecting current vortex measuring staff 4 by setscrew nut.
As shown in Figure 5, current vortex measuring staff 4 is comprised of measuring staff body 15 and current vortex gauge head 16, measuring staff body 15 lower ends are provided with a screwed hole 17 that links with strong magnetic seat B5, the upper end is equipped with current vortex gauge head 16, the centre is provided with a through hole 18 that is used for connecting the gauge head wire, the bottom has one to be used for the electric interfaces hole 6 that current vortex gauge head 16 is connected with external circuit, and intermediary outside has a location screw thread 19, is used for being located by connecting upper sleeve pipe 3.
Each parts action and function of the utility model:
(1) strong magnetic seat A: utilize its strong magnetic performance adsorption at cold-rolling mill frame window upper position, the helicitic texture of its head is used for connecting upper sleeve pipe.
(2) measure piece: the weak magnetic conductive metal conductor material of nahlock shape, such as copper, aluminium, steel alloys etc. form the relation of measurement with the current vortex gauge head.Its diameter is not less than 1.5 times of current vortex measuring head diameter, and its thickness is between 1 ~ 1.5 millimeter.And with upper internal surface of sleeve pipe interference fit, the roughness of measuring the surface requires between 0.4um～1.6um.See Fig. 4.
(3) upper sleeve pipe; Barrel-shaped structure, high-strength insulating material.Screw top hole and strong magnetic seat A connect.Top thickness is not as the criterion by strong magnetic seat A magnetic interference to measure piece.Screwed hole below upper inside wall adopts interference fit to install and measure piece.Owing to adopt high-strength insulating material can form the non-conductive medium space of certain limit, effectively avoid test to disturb.Inner step place is equipped with flexible seal ring, plays guiding and protects, guides the effect of current vortex measuring staff gauge head, and can prevent impact and the interference of surrounding medium.The bottom positioning threads is identical with the positioning threads of current vortex measuring staff; when inoperative, upper sleeve pipe and current vortex measuring staff are connected as a single entity; whole sensor group is integrated to play a protective role; first integral body is utilized the strong magnetic seat to be adsorbed on respectively on two generation relative displacement faces of tested mechanism during work; upper sleeve pipe and current vortex measuring staff install rear rotation setscrew nut and make sleeve pipe and current vortex measuring staff throw off and can measure on same measurement axis in the time of can guaranteeing to measure.See Fig. 5.
(4) current vortex measuring staff: cylinder.The current vortex measuring staff is comprised of measuring staff body and current vortex gauge head etc.Form the relation of measurement with the measurement piece.Measuring staff one end thread mill drilling connects with strong magnetic seat B.The other end is equipped with the current vortex gauge head, and the centre has a hole to be used for connecting the gauge head wire.The bottom has an electric interfaces hole to be connected with external circuit for the current vortex gauge head.Middle positioning threads is identical with the positioning threads of upper sleeve pipe, connects by setscrew nut and upper sleeve pipe, and the location of playing when installing guarantees and protective effect at ordinary times.See Fig. 6.
(5) setscrew nut: sleeve pipe and current vortex measuring staff in the connection.By setscrew nut upper sleeve pipe and current vortex measuring staff are connect, the location of playing when installing guarantees and protective effect at ordinary times.
(6) strong magnetic seat B: utilize its strong magnetic performance adsorption in cold-rolling mill top chock position, the helicitic texture of its head is used for connecting the current vortex measuring staff.
Operation principle of the present utility model:
Be bound up with upper sleeve pipe and the current vortex measuring staff of setscrew nut with sensor, make sensor form an integral body, go up sleeve pipe and current vortex measuring staff in the time of can guaranteeing to measure on same measurement axis, and adjust setting height(from bottom) by setscrew nut.Utilize strong magnetic seat A to be adsorbed on the cold-rolling mill frame window upper position of cold-rolling mill one of roll gap testing sensor, the other end utilizes strong magnetic seat B to be adsorbed on cold-rolling mill top chock position, sees Fig. 2.Install rear rotation setscrew nut sleeve pipe and current vortex measuring staff are thrown off and when entering the measuring position and can guarantee its work so upper sleeve pipe and current vortex measuring staff all the time on same axis.When rolling mill in when work, along with the action of press down system, the top roll of rolling mill lifts or depresses, change appears in the up and down roll gap of rolling mill.Because it is mobile together that strong magnetic seat B, the current vortex measuring staff of roll gap testing sensor are followed the rolling mill top chock, and the frame of rolling mill is motionless, so the strong magnetic seat A of roll gap testing sensor, upper sleeve pipe are motionless, measurement piece in the upper sleeve pipe is also motionless with upper sleeve pipe, this moment, the current vortex gauge head of roll gap testing sensor formed position (displacement) variation with the measurement piece, the current vortex gauge head exports the variation that this change in location is converted to voltage or electric current in test and the control instrument to, thereby finishes observing and controlling work.When rolling mill makes the effect that is subject to draught pressure in work, the frame of rolling mill, press down system etc. produce strain under the effect of power be the spring of rolling mill system, also can produce at this moment small position (displacement) between the frame of rolling mill and the top chock changes, the roll gap testing sensor changes the variation that is converted to voltage or electric current to this small position (displacement) equally and exports in test and the control instrument, thereby finishes observing and controlling work.
Claims (4)
1. cold-rolling mill roll gap testing sensor, comprise strong magnetic seat A(1), measure piece (2), upper sleeve pipe (3), current vortex measuring staff (4), strong magnetic seat B(5), it is characterized in that: described current vortex measuring staff (4) top cover has upper sleeve pipe (3), and be fixedly connected with setscrew nut (7) by screw thread, place in upper sleeve pipe (3) upper end and measure piece (2), and measure the current vortex gauge head on the corresponding current vortex measuring staff in piece (2) lower surface (4), upper sleeve pipe (3) upper surface is fixedly connected with strong magnetic seat A(1), current vortex measuring staff (4) lower surface is fixedly connected with strong magnetic seat B (5).
2. cold-rolling mill roll gap testing sensor according to claim 1, it is characterized in that: described measurement piece (2) by the nahlock shape a little less than the magnetic conductive metal conductor material make, 3 times of its diameter 〉=current vortex measuring head diameter, its thickness between 1.5 ~ 2 millimeters, and with upper sleeve pipe (3) inwall interference fit.
3. cold-rolling mill roll gap testing sensor according to claim 1; it is characterized in that: described upper sleeve pipe (3) is barrel-shaped structure; made by high-strength insulating material; its top is provided with and strong magnetic seat A(1) screwed hole (13) that is connected; inside is provided with step; the step place has been equipped with the flexible seal ring (8) of guiding and protection and guiding current vortex measuring staff gauge head, is provided with a screw thread (14) below the upper sleeve pipe (3), is used for connecting current vortex measuring staff (4) by setscrew nut.
4. cold-rolling mill roll gap testing sensor according to claim 1, it is characterized in that: described current vortex measuring staff (4) is comprised of measuring staff body (14) and current vortex gauge head (16), measuring staff body (15) lower end be provided with one with strong magnetic seat B(5) screwed hole (17) that links, the upper end is equipped with current vortex gauge head (16), the centre is provided with a through hole (18) that is used for connecting the gauge head wire, the bottom has one to be used for the electric interfaces hole (6) that current vortex gauge head (16) is connected with external circuit, intermediary outside has a location screw thread (19), for the upper sleeve pipe (3) that is located by connecting by setscrew nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276561 CN202741437U (en) | 2012-06-13 | 2012-06-13 | Roll gap test sensor for cold mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276561 CN202741437U (en) | 2012-06-13 | 2012-06-13 | Roll gap test sensor for cold mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202741437U true CN202741437U (en) | 2013-02-20 |
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ID=47700885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220276561 Expired - Fee Related CN202741437U (en) | 2012-06-13 | 2012-06-13 | Roll gap test sensor for cold mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202741437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721360A (en) * | 2012-06-13 | 2012-10-10 | 上海应用技术学院 | Cold-rolling mill roll gap test sensor |
| CN108318151A (en) * | 2017-01-17 | 2018-07-24 | 辽宁省交通规划设计院有限责任公司 | Mountain tunnel lining cutting and country rock assembled temperature measuring staff |
-
2012
- 2012-06-13 CN CN 201220276561 patent/CN202741437U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721360A (en) * | 2012-06-13 | 2012-10-10 | 上海应用技术学院 | Cold-rolling mill roll gap test sensor |
| CN102721360B (en) * | 2012-06-13 | 2015-01-07 | 上海应用技术学院 | Cold-rolling mill roll gap test sensor |
| CN108318151A (en) * | 2017-01-17 | 2018-07-24 | 辽宁省交通规划设计院有限责任公司 | Mountain tunnel lining cutting and country rock assembled temperature measuring staff |
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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: 20130220 Termination date: 20130613 |