CN214516764U

CN214516764U - Device for measuring strip conveying speed of cold rolling mill

Info

Publication number: CN214516764U
Application number: CN202120682072.4U
Authority: CN
Inventors: 张来; 孟军; 张新超; 于镇锋
Original assignee: Chalco He'nan Luoyang Aluminum Processing Co ltd
Current assignee: Chalco He'nan Luoyang Aluminum Processing Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-10-29
Anticipated expiration: 2031-04-02

Abstract

A device for measuring the conveying speed of a cold rolling mill strip comprises a support fixedly connected with a guide roller bearing seat supported at the end part of a cold rolling mill guide roller, a screw is arranged on the support and matched with the screw to install a lead screw, one end of the lead screw is connected with a measuring wheel which is used for being in contact with the cold rolling mill guide roller and rotating along with the cold rolling mill guide roller through a connecting piece, and an encoder is arranged at one end of a wheel shaft of the measuring wheel. The device has the advantages of compact structure, small installation space, low manufacturing cost and accurate speed measurement, is suitable for the mass flow control technology in the upgrading and reconstruction of the plate type and thickness control system of the domestic rolling mill, can greatly save the reconstruction cost, and has great value in popularization and application.

Description

Device for measuring strip conveying speed of cold rolling mill

Technical Field

The utility model belongs to the technical field of the cold rolling mill technique of sheet band material and specifically relates to a cold rolling mill strip transfer rate measuring device is related to.

Background

In the cold rolling process of strip, the control precision can have a significant impact on the cold rolling quality of the strip.

In order to improve the control accuracy of the sheet and strip in the cold rolling process, two important parameters are required in the mass flow control of the cold rolling mill, namely the strip transport speed at the inlet of the cold rolling mill and the strip transport speed at the outlet of the cold rolling mill. In the prior art, a cold rolling mill adopts a laser velocimeter to detect the strip conveying speed at an inlet of the cold rolling mill and the strip conveying speed at an outlet of the cold rolling mill, but the laser velocimeter is high in price and cost and is not beneficial to reducing the production cost of enterprises. Theoretically, the linear speed of the guide roller at the inlet of the cold rolling mill is the same as the conveying line speed of the strip at the inlet of the cold rolling mill; the transmission linear speed of the guide rollers at the outlet of the cold rolling mill is the same as the transmission linear speed of the strip at the outlet of the cold rolling mill, and based on the idea, the linear speed parameters of the guide rollers at the inlet and the outlet of the cold rolling mill are measured, so that the transmission line speeds of the strip at the inlet and the outlet of the cold rolling mill can be obtained, and the technical requirement of quality flow control is met. However, in domestic rolling mills such as 2000 rolling mills, the inlet guide roller and the outlet guide roller are hollow roller shafts, and the rotation speed of the guide roller cannot be measured by directly adding an encoder on the roller shaft end surface of the guide roller, so how to accurately measure the strip conveying speed of the rolling mills such as 2000 rolling mills and the like without causing high cost becomes a technical problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cold rolling mill strip transfer rate measuring device.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a device for measuring the conveying speed of a cold rolling mill strip comprises a support fixedly connected with a guide roller bearing seat supported at the end part of a cold rolling mill guide roller, a screw is arranged on the support and matched with the screw to install a lead screw, one end of the lead screw is connected with a measuring wheel which is used for being in contact with the cold rolling mill guide roller and rotating along with the cold rolling mill guide roller through a connecting piece, and an encoder is arranged at one end of a wheel shaft of the measuring wheel.

Furthermore, the connecting piece comprises a connecting plate and a stud arranged on the connecting plate, the connecting plate is fixedly connected with a wheel axle bearing seat at the end part of a wheel axle of the measuring wheel, a nut is arranged at one end, away from the measuring wheel, of the stud, a supporting base plate is arranged between the nut and the connecting plate, an elastic element is arranged between the supporting base plate and the connecting plate, and the screw rod is fixedly connected with the supporting base plate.

Preferably, the elastic element is a disc spring.

As an embodiment that can be adopted, the end of the screw rod connected with the support backing plate has a hollow inner cavity, and the corresponding end of the stud and the nut are arranged in the hollow inner cavity of the screw rod.

Also, one end of the screw rod connected with the support base plate is provided with at least two vertical connecting parts, and the screw rod is connected with the support base plate through the vertical connecting parts.

Furthermore, the bracket is provided with a supporting plate, and the screw nut is arranged on the supporting plate; the supporting plate is also provided with a guide sleeve, and the connecting plate is provided with a guide rod which is matched with the guide sleeve.

Preferably, the number of the guide sleeves is two, the two guide sleeves are symmetrically arranged on the support plate relative to the central line of the nut, the number of the guide rods is also two, and the two guide rods and the two guide sleeves are correspondingly arranged.

Furthermore, the guide rod is fixedly connected with the connecting plate through a screw and a guide rod flange arranged at the end part.

Preferably, a copper bush is arranged in the guide sleeve, and the copper bush is matched with the guide rod for installation.

Preferably, the measuring wheel and the axle of the measuring wheel are of a solid structure which is integrally made, and a glue layer for increasing friction force is arranged on the periphery of the measuring wheel.

Has the advantages that:

according to the utility model discloses, through setting up a support to set up the measuring wheel through lead screw and connecting piece, the measuring wheel can adjust its and the distance of cold rolling mill deflector roll under the effect of lead screw, and guarantee under elastic element's effect and cold rolling mill deflector roll in close contact with, make the rotational speed of measuring wheel constantly unanimous with the rotational speed of cold rolling mill deflector roll, the encoder sets up the one end at measuring wheel shaft, thereby can finally obtain the conveying line speed of strip in cold rolling mill entry, exit. The utility model discloses compact structure, installation space is little, and the cost of manufacture is low, and it is accurate to test the speed, is applicable to the quality flow control technique in the domestic rolling mill board type, thickness control system upgrade transformation on, can practice thrift the transformation cost greatly, has the value of popularization and application.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a left side view of fig. 1 (the cold roll mill rolls are not shown in this view).

Fig. 3 is a schematic view of the usage state of the present invention on a cold rolling mill.

The labels in the figure are: 1. support 101, support plate, 102, vertical plate, 2, guide sleeve, 3, copper bush, 4, guide bar, 401, guide bar flange, 5, screw, 6, lead screw, 7, nut, 8, support backing plate, 9, stud, 10, elastic element, 11, screw, 12, connecting plate, 13, wheel axle bearing seat, 14, measuring wheel, 15, cold rolling mill guide roller, 16, guide roller bearing seat, 17, encoder, 18, uncoiler, 19, strip, 20, cold rolling mill inlet guide roller, 21, work roller, 22, cold rolling mill outlet guide roller, 23, coiler.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in the figure, the device for measuring the conveying speed of the strip of the cold rolling mill comprises a bracket 1 which is fixedly connected with a guide roller bearing seat 16 supported at the end part of a guide roller 15 of the cold rolling mill.

A screw 5 is arranged on a support 1, a screw rod 6 is arranged in a matching way with the screw 5, one end of the screw rod 6 is connected with a measuring wheel 14 which is used for being in contact with a cold rolling mill guide roller 15 and rotating along with the cold rolling mill guide roller 15 through a connecting piece, and one end of a wheel shaft of the measuring wheel 14 is provided with an encoder 17.

In this embodiment, the connecting member includes a connecting plate 12 and a stud 9 disposed on the connecting plate 12, the connecting plate 12 is fixedly connected to a wheel axle bearing seat 13 at an end of a wheel axle of the measuring wheel 14, a nut 7 is disposed at an end of the stud 9 away from the measuring wheel 14, a support pad 8 is disposed between the nut 7 and the connecting plate 12, an elastic element 10 is disposed between the support pad 8 and the connecting plate 12, and the lead screw 6 is fixedly connected to the support pad 8.

In this embodiment, the elastic element 10 is a disc spring. In practical applications, the elastic element 10 may also be a compression spring with a suitable stiffness coefficient.

Specifically, a hollow cavity may be formed at the end of the screw rod 6 connected to the support pad 8, and the corresponding end of the stud 9 and the nut 7 are disposed in the hollow cavity of the screw rod 6.

As another embodiment, one end of the screw rod 6 connected with the support cushion plate 8 can be connected with the support cushion plate 8 through at least two vertical connecting parts. The vertical connecting parts are arranged at intervals.

The support 1 is provided with a support plate 101, and the screw 5 is arranged on the support plate 101.

In this embodiment, the bracket 1 further includes a vertical plate 102, the top end of the vertical plate 102 is vertically welded to the horizontally disposed support plate 101, and the other end of the vertical plate 102 can be fixedly connected to the roller guide bearing 16 through a seat plate and a bolt.

In this embodiment, a guide sleeve 2 is further provided on the support plate 101, and a guide rod 4 fitted to the guide sleeve 2 is provided on the connection plate 12. The number of the guide sleeves can be determined according to requirements. In this embodiment, the uide bushing be 2, two uide bushings relative the nut central line symmetry set up in the backup pad, guide bar 4 also be two, two guide bar 4 and two uide bushings 2 correspond the installation.

The guide rod 4 is fixedly connected with the connecting plate through a screw 11 and a guide rod flange 401 arranged at the end part.

In order to make the guiding more accurate, a copper bush 3 is arranged in the guiding sleeve, and the copper bush 3 is matched with the guiding rod 4. Adopt copper bush 3 and guide bar cooperation, at the in-process of direction, form the lubricated film between guide bar 4 and copper bush 3 after copper bush 3 wearing and tearing, be favorable to smooth accurate direction to improve measuring accuracy.

In this embodiment, the measuring wheel 14 and the axle of the measuring wheel are a solid structure made of one piece, and a glue layer 14a is disposed on the periphery of the measuring wheel 14. The glue layer can be made of polyurethane and is arranged in a coating mode. Thereby increasing the contact friction between the measuring wheel 14 and the cold-rolling mill guide roll 15 and preventing the relative sliding between the measuring wheel 14 and the cold-rolling mill guide roll 15.

The utility model discloses a lead screw 6 and connecting piece make measuring

wheel

14 and 15 in close contact with of cold rolling mill deflector roll, and elastic element 10 in the connecting piece can provide corresponding elasticity pretightning force, makes measuring wheel 14 rotate along with cold rolling mill deflector roll 15 is synchronous, does not take place relative slip each other. Thus, an encoder 17 is installed at one end of the speed measurement measuring wheel 14, the rotating speed of the measuring wheel 14 is measured, and the linear speed of the measuring wheel can be calculated through the diameter of the measuring wheel 14, so that the linear speed of the guide roller 15 of the cold rolling mill, namely the linear speed of the strip material, is obtained.

The utility model discloses during the use, as shown in fig. 3, install in cold rolling mill entry deflector roll 20 and cold rolling mill export deflector roll 22 top, fix support 1 on the deflector roll bearing frame through the screw. The uncoiler 18 is rotated clockwise, the strip 19 enters a front tensioning device consisting of three cold-rolling mill inlet guide rollers 20 at the inlet, passes through an upper working roller 21 and a lower working roller 21, and is coiled by a coiler 23 after passing through a cold-rolling mill outlet guide roller 22. Under the rolling state, under the action of the uncoiler 18 and the coiler 23, a certain tension can be formed on the strip at the inlet and the outlet of the rolling mill, a certain wrap angle can be formed on the strip on the cold mill inlet guide roller 20 and the cold mill outlet guide roller 22, the strip drives the cold mill inlet guide roller 20 and the cold mill outlet guide roller 22 to synchronously rotate, the cold mill inlet guide roller 20 and the cold mill outlet guide roller 22 drive the measuring wheel 14 to rotate, the rotating speed of the measuring wheel 14 is recorded through the encoder 17, the linear speed of the measuring wheel 14 is obtained through calculation, and the same linear speed is obtained among the cold mill inlet guide roller, the measuring wheel and the strip, so that the transmission linear speed of the strip at the inlet and the outlet of the cold mill can be accurately obtained.

The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and it should be understood by those of ordinary skill in the art that the embodiments of the present invention can be modified or replaced with equivalents with reference to the above embodiments, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are all within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a cold rolling mill strip conveying speed measuring device which characterized in that: the device comprises a support (1) fixedly connected with a guide roller bearing seat (16) supported at the end part of a guide roller (15) of the cold rolling mill, wherein a nut (5) is arranged on the support (1), a lead screw (6) is installed in a matching manner with the nut (5), one end of the lead screw (6) is connected with a measuring wheel (14) which is used for being in contact with the guide roller (15) of the cold rolling mill and rotating along with the guide roller (15) of the cold rolling mill through a connecting piece, and one end of a wheel shaft of the measuring wheel (14) is provided with an encoder (17).

2. The device for measuring the strip transport speed of a cold rolling mill according to claim 1, wherein: the connecting piece include one connecting plate (12) and establish stud (9) on connecting plate (12), connecting plate (12) and wheel axle bearing frame (13) fixed connection of measuring wheel (14) shaft tip, be equipped with nut (7) in the one end that measuring wheel (14) are kept away from in stud (9), be equipped with between nut (7) and connecting plate (12) and support backing plate (8), be provided with elastic element (10) between support backing plate (8) and connecting plate (12), lead screw (6) and support backing plate (8) fixed connection.

3. The device for measuring the strip transport speed of a cold rolling mill according to claim 2, characterized in that: the elastic element (10) is a disc spring.

4. The device for measuring the strip transport speed of a cold rolling mill according to claim 2, characterized in that: one end of the screw rod (6) connected with the support cushion plate (8) is provided with a hollow inner cavity, and the corresponding end of the stud (9) and the nut (7) are arranged in the hollow inner cavity of the screw rod (6).

5. The device for measuring the strip transport speed of a cold rolling mill according to claim 2, characterized in that: the screw rod (6) is provided with at least two vertical connecting portions at one end connected with the supporting base plate (8), and the screw rod (6) is connected with the supporting base plate (8) through the vertical connecting portions.

6. The device for measuring the strip transport speed of a cold rolling mill according to claim 2, characterized in that: the support (1) is provided with a support plate (101), and the screw (5) is arranged on the support plate (101); the supporting plate (101) is also provided with a guide sleeve (2), and the connecting plate (12) is provided with a guide rod (4) which is matched with the guide sleeve (2) for installation.

7. The device for measuring the strip transport speed of a cold rolling mill according to claim 6, wherein: the guide sleeve (2) be two, two relative nut central line symmetry settings of guide sleeve are in the backup pad, guide bar (4) also be two, two guide bar (4) and two guide sleeve (2) correspond the installation.

8. The device for measuring the strip transport speed of a cold rolling mill according to claim 6, wherein: the guide rod (4) is fixedly connected with the connecting plate through a screw (11) and a guide rod flange (401) arranged at the end part.

9. A cold rolling mill strip conveying speed measuring device according to any one of claims 6 to 8, characterized in that: a copper bush (3) is arranged in the guide sleeve, and the copper bush (3) is matched with the guide rod (4) for installation.

10. The device for measuring the strip transport speed of a cold rolling mill according to claim 1, wherein: the measuring wheel and the axle of the measuring wheel are of a solid structure which is integrally manufactured, and a glue layer (14 a) for increasing friction force is arranged on the periphery of the measuring wheel.