CN206037983U - Roll crown measuring device - Google Patents

Abstract

A roll crown measuring device, comprising a support frame (1), two measuring pendulum rods (3) are hinged at the bottom of the support frame (1), and the measuring pendulum rods (3) can be rotated in a plane perpendicular to the axis line of the roll The hinge point rotates, the two ends of the two measuring swing rods (3) are respectively hinged with measuring contact balls (4), and the bottom of the support frame (1) is also equipped with rolling supports, and the measuring contact balls (4) are always close to the roll during measurement The roll surface rolls along the axial direction of the roll, and an angular displacement sensor A (5) is provided at the hinge of the measuring pendulum (3). The utility model can accurately measure the convexity and contour curve of the roll, has a simplified structure, reduces cost, does not need to set additional positioning references, and can measure by placing the measuring mechanism on the roll without finding the position of the maximum diameter.

Description

A roll crown measuring device

technical field

The utility model relates to roll testing equipment, in particular to a roll crown measuring device.

Background technique

In the production of sheet and strip in the steel industry and non-ferrous metal industry, the roll is an important equipment component in the sheet rolling process. It uses the pressure generated when a pair or a group of rolls roll towards each other to roll the sheet Strip. The working state of the roll directly affects the effect of rolling production. During the rolling process, due to factors such as temperature and wear, the roll may be deformed. This deformation mainly includes the smaller diameter of the middle part of the roll and the larger diameter of the two ends because the middle part of the roll is more severely worn than the axial ends. The situation (that is, the roll wear convexity) changes the axial profile curve of the roll, which in turn affects the rolling effect of the roll. In order to ensure the quality of processing, the roll crown (roll shape) must be measured and inspected before the roll is put on the rolling mill and after a period of use, so it is very important to correctly detect whether the roll meets the accuracy requirements. At this stage, many domestic manufacturers are still using traditional measuring equipment such as micrometers and saddle gauges. Some large enterprises with strong economic strength use foreign roll measuring instruments, which are huge and expensive.

Chinese patent 201210408108.5 discloses a roll shape measuring device. This solution needs to design and manufacture measuring devices with different measurement ranges according to the different diameters of the rolls to be tested. The universality is not strong, which is not conducive to cost control; , the diameter of the entire roll needs to be enveloped, that is, the two support rods need to maintain an angle of 90 degrees and at the same time keep the two support rods tangent to the roll surface. Therefore, the measuring device needs to occupy a large Large space, inconvenient operation. In addition, this solution needs to remove the roll from the rolling mill during measurement, and the space on both sides of the radial direction of the roll needs to be cleaned so that the two support rods can extend to both radial sides of the roll at the same time. Therefore, this solution is not suitable for situations where there is not enough space and on-site measurement, which will affect production efficiency.

With the continuous development of the iron and steel industry and metallurgical technology, higher requirements are put forward for the measuring mechanism of the roll. Requirements, it is necessary to develop a new roll measuring mechanism.

Utility model content

The purpose of the utility model is to provide a roll crown measurement device to solve the problems raised in the background technology.

In order to achieve the above object, the utility model provides a roll crown measurement device, which includes a support frame 1, and the bottom of the support frame 1 is hinged with two measuring pendulum bars 3 located in the same plane perpendicular to the axis line of the roll. The pendulum 3 can rotate around the hinge point in a plane perpendicular to the axis line of the roll, and the two ends of the two measuring pendulum 3 are respectively hinged with a measuring contact ball 4 that can rotate around the axis line of the measuring pendulum 3. The bottom of frame 1 is also equipped with a rolling support that can stick to the roll surface and roll along the direction of the roll axis. The measuring contact ball 4 always sticks to the roll surface and rolls along the roll axial direction during measurement. The measuring swing rod 3 and the supporting frame The hinge of 1 is provided with an angular displacement sensor A5 for detecting the swing angle of the pendulum 3. During the process of measuring the rolling of the contact ball 4, the distance between the two hinge points is fixed and the diameter of the outer circle of the roll changes. The angle changes, and the instant pendulum angle of the pendulum rod 3 measured by the angular displacement sensor A5 is used to obtain the diameter change in the axial direction of the roll, that is, the convexity of the roll.

Further, the device also includes a displacement sensor for detecting the travel of the device along the axial direction of the roll, combining the measured roll crown and the travel measured by the displacement sensor to obtain the roll axial profile curve of the current measurement stroke .

Further, the displacement sensor is an angular displacement sensor B6. The bottom of the support frame 1 is provided with a measuring roller 2 that can roll along the axis of the roll. The spring on the roller surface of the roll, the angular displacement sensor B6 is connected to the rotating shaft of the measuring roller 2, and the rotation stroke of the measuring roller 2 measured by the angular displacement sensor B6 is used to obtain the current measurement stroke in combination with the diameter variation of the roll Axial profile curve.

Further, the measuring device is also provided with a controller, all the angular displacement sensors A5 and the angular displacement sensors B6 are electrically connected and controlled by the controller, and the controller is used to automatically calculate the data fed back by the angular displacement sensors A5 and the angular displacement sensors B6 Roll crown and axial profile curve.

Further, the support frame 1 includes a longitudinal support arm 11 arranged along the axial direction of the roll and two transverse support arms 12 perpendicular to the longitudinal support arm 11, and the two transverse support arms 12 are symmetrically arranged in the transverse direction of the longitudinal support arm 11. Both sides, that is, the support frame 1 is arranged as a transversely symmetrical structure, and the axis line of the roll is located in the longitudinal half-section of the longitudinal support arm 11, and the two measuring swing bars 3 are respectively hinged on the two transverse support arms 12 away from the longitudinal support arm. The bottom of one end of 11, and the two measuring pendulum bars 3 located in the same plane perpendicular to the axis line of the roll are symmetrical about the longitudinal half-section of the longitudinal support arm 11.

The rolling support can be other two measuring pendulums 3 arranged at the bottom of the support frame 1 and another four measuring contact balls 4 hinged at the ends of the measuring pendulums. The other two measuring pendulums 3 also pass through two transverse The support arms 12 are fixedly connected to the support frame 1, and the four horizontal support arms 12 are symmetrically arranged on both lateral sides of the longitudinal support arm 11. bottom of one end.

The rolling support can also be directly or indirectly fixedly arranged on the support roller 13 at the bottom of the support frame 1 to support the support frame. The support frame 1 is fixed with a guide shaft 111 along the radial direction of the roll, and on the guide shaft 111 A sliding block 121 that can slide relative to the guide shaft 111 along the radial direction of the roll and cannot rotate relative to the guide shaft 111 is sleeved. Fixed connection, so that when the supporting roller 13 drives the entire measuring device to roll along the axial direction of the roll, the measuring contact ball 4 can always keep rolling contact with the roll surface, and when the diameter of the outer circle of the roll changes and the angle of the pendulum rod 3 changes , the support roller 13 can move along the radial direction of the roll to adapt to the change in the diameter of the roll.

Further, the sliding block 121 is in sliding contact with the guide shaft 111 through a linear bearing.

Beneficial effects: the utility model measures the roll convexity and axial profile curve by measuring the pendulum bar 3 and the measuring contact balls 4 arranged at both ends of the pendulum bar 3, and can accurately measure the roll crown and profile curve, and measure The contact ball 4 is also a measuring component while being used as a supporting component, which simplifies the structure of the entire measuring device, reduces the manufacturing cost of the measuring device, and the distance between the two measuring pendulum bars along the radial direction of the roll is fixed. The two measuring swing rods and the rolling support constitute the positioning datum of the entire loading device, and the whole measuring device does not need to set an additional positioning datum, so there will be no problem of inaccurate measurement accuracy caused by datum errors.

In addition, this measuring device does not need to envelop the entire roll diameter during the measurement process, which solves the problems caused by the excessive size of the existing measuring mechanism, the need for special measuring tools for rolls of different sizes, the need for more measurement sites, and the lack of The problem of easy portability. In the past, some measuring institutions needed to align the measuring head with the diameter of the roll, so it took a certain amount of adjustment time and skills to find the correct position. However, this measuring mechanism can successfully solve this problem. The measurement can be carried out on the roll without finding the position of the maximum diameter, the operation is not difficult, the requirement for the level of the operator is low, and the applicability is strong.

In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. Below with reference to figure, the utility model is described in further detail.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is the front view of preferred embodiment one of the utility model;

Fig. 2 is the left side view of preferred embodiment one of the utility model;

Fig. 3 is a top view of the first preferred embodiment of the utility model;

Fig. 4 is the front view of the second preferred embodiment of the utility model;

Fig. 5 is a left view of the second preferred embodiment of the utility model;

Fig. 6 is a top view of the second preferred embodiment of the utility model.

Among the figure: 1-support frame, 11-longitudinal support arm, 111-guiding shaft, 12-transverse support arm, 121-sliding block (linear bearing), 13-supporting roller, 2-measurement roller, 3-measurement pendulum, 4-measure contact ball, 5-angular displacement sensor A, 6-angular displacement sensor B, 7-roller.

detailed description

The embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, but the utility model can be implemented in various ways defined and covered by the claims.

Embodiment one

Referring to Figures 1 to 3, the new roll crown and axial profile measuring device of Embodiment 1 includes a support frame 1 whose length is smaller than the axial length of the roll and whose width is smaller than the diameter of the roll. The bottom of the support frame 1 is hinged with two The measuring pendulum 3 in the plane perpendicular to the axis line of the roll can rotate around the hinge point in the plane perpendicular to the axis line of the roll. The axis line of the pendulum bar 3 rotates the measuring contact ball 4, and the bottom of the support frame 1 is also provided with a rolling support that can roll along the direction of the roll axis line outside the "same plane perpendicular to the roll axis line". In the first embodiment, the rolling support is the other two measuring pendulum rods 3 and four measuring contact balls 4 repeatedly arranged at the bottom of the support frame 1, and the measuring contact balls 4 always stick to the roll surface and roll along the axial direction of the roll during measurement. , the hinges of the four measuring swing rods 3 and the support frame 1 are provided with angular displacement sensors A5 for measuring the swing angle of the swing rods 3 .

In Embodiment 1, the support frame 1 includes a longitudinal support arm 11 arranged along the axial direction of the roll and four transverse support arms 12 perpendicular to the longitudinal support arm 11, and the four transverse support arms 12 are symmetrically arranged on the longitudinal support arm 11 in pairs. On both sides of the lateral direction, that is, the support frame 1 is arranged as a laterally symmetrical structure, and the axis line of the roll is located in the longitudinal half-section of the longitudinal support arm 11 (i.e. the symmetry plane of the support frame), and the four measuring pendulum bars 3 are respectively hinged on the The four transverse support arms 12 are away from the bottom of one end of the longitudinal support arm 11, and the two measuring pendulum bars 3 located in the same plane perpendicular to the roll axis are symmetrical about the longitudinal half-section of the longitudinal support arm 11.

In Embodiment 1, the bottom of the support frame 1 is provided with a measuring roller 2 that can roll along the axis of the roll, and a spring ( Not shown in the figure), the measuring roller 2 is connected with an angular displacement sensor B6 for detecting the rotation stroke of the measuring roller 2.

Embodiment two

Referring to Figures 4 to 6, the new roll crown and axial profile measuring device of Embodiment 2 includes a support frame 1 whose length is smaller than the axial length of the roll and whose width is smaller than the diameter of the roll. The bottom of the support frame 1 is hinged with two The measuring pendulum 3 in the plane perpendicular to the axis line of the roll can rotate around the hinge point in the plane perpendicular to the axis line of the roll. The axis line of the pendulum bar 3 rotates the measuring contact ball 4, and the bottom of the support frame 1 is also provided with a rolling support that can roll along the direction of the roll axis line outside the "same plane perpendicular to the roll axis line". In the second embodiment, the rolling support is four support rollers 13 arranged at the bottom of the support frame 1, and the measuring contact ball 4 always sticks to the roll surface and rolls along the axial direction of the roll during measurement, and the distance between the pendulum bar 3 and the support frame 1 is measured. The hinge is provided with an angular displacement sensor A5 for detecting and measuring the swing angle of the pendulum 3 .

In the second embodiment, the support frame 1 includes a longitudinal support arm 11 arranged along the axial direction of the roll and two transverse support arms 12 perpendicular to the longitudinal support arm 11, and the two transverse support arms 12 are arranged symmetrically in the transverse direction of the longitudinal support arm 11. Both sides, that is, the support frame 1 is arranged as a transversely symmetrical structure, and the axis line of the roll is located in the longitudinal half-section of the longitudinal support arm 11 (i.e. the symmetry plane of the support frame), and the two measuring pendulums 3 are respectively hinged on two The bottom of one end of the transverse support arm 12 away from the longitudinal support arm 11 , and the two measuring pendulums 3 are symmetrical about the longitudinal half section of the longitudinal support arm 11 .

In the second embodiment, the four support rollers 13 are symmetrical in pairs with respect to the longitudinal half-section of the support arm 11, and the support frame 1 is fixed with a guide shaft 111 along the radial direction of the roll, and the guide shaft 111 is sleeved with a guide shaft that can guide relative to it. The shaft 111 slides along the radial direction of the roll and cannot produce a sliding block 121 that can rotate relative to the guide shaft 111. The two measuring swing rods 3 are respectively fixedly connected to the sliding block 121 through the transverse support arm 12, so that the supporting roller 13 drives the entire measuring device. When rolling along the axial direction of the roll, the measuring contact ball 4 can always keep rolling contact with the roll surface, and as the diameter of the outer circle of the roll changes and the angle of the measuring pendulum 3 changes, the supporting roller 13 can move along the radial direction of the roll. Motion is produced to accommodate roll diameter changes.

In the second embodiment, the sliding block 121 is in sliding contact with the guide shaft 111 through a linear bearing.

In the second embodiment, the bottom of the support frame 1 is provided with a measuring roller 2 that can roll along the axis of the roll, and a spring ( Not shown in the figure), the measuring roller 2 is connected with an angular displacement sensor B6 for detecting the rotation stroke of the measuring roller 2.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. a kind of roll crown measurement apparatus, it is characterised in that including bracing frame (1), bracing frame (1) bottom is hinged with two positions Measuring oscillating bar (3) in the same plane vertical with roll axial line, measuring oscillating bar (3) can be vertical with roll axial line Plane in around pin joint rotate, the two ends of two measuring oscillating bars (3) are all respectively articulated with can be around the axial line of measuring oscillating bar (3) Measurement contact ball (4) of rotation, bracing frame (1) bottom is additionally provided with the rolling that can touch that roll surface is rolled along roll direction of axis line Dynamic to support, measurement contact ball (4) is adjacent to roll surface all the time in measurement and rolls along roll axial direction, measuring oscillating bar (3) with The hinged place of bracing frame (1) is provided with the angular displacement sensor A (5) for detecting measuring oscillating bar (3) pendulum angle, measurement contact ball (4) roll during, because the distance between two pin joints fix and roll outside diameter change and cause measuring oscillating bar (3) Angle changes, and the instant pivot angle of the measuring oscillating bar (3) measured by angular displacement sensor A (5) is used for drawing roll mandrel upwards Diameter change situation, i.e. the convexity of roll.

2. a kind of roll crown measurement apparatus according to claim 1, it is characterised in that also include in described device for The displacement transducer of the stroke that detection means is advanced along roll axial direction, with reference to the roll crown and displacement transducer that measure The stroke for measuring draws the roll axial direction contour curve when pre-test stroke.

3. a kind of roll crown measurement apparatus according to claim 2, it is characterised in that institute's displacement sensors are angle position Displacement sensor B (6), bracing frame (1) bottom are provided with the measurement roller (2) that can be rolled along roll direction of axis line, measure roller (2) support to be provided with and bracing frame (1) between and measurement roller (2) is overlayed into the spring on roll surface, the angular displacement sensor B (6) it is connected with the rotating shaft of measurement roller (2), the rotational travel of the measurement roller (2) measured by angular displacement sensor B (6) is used for The axial profile curve when pre-test stroke is drawn with reference to the diameter change situation of roll.

4. a kind of roll crown measurement apparatus according to claim 3, it is characterised in that the measurement apparatus are additionally provided with control Device processed, all of angular displacement sensor A (5) electrically connect control with angular displacement sensor B (6) by controller, and controller is used for Reception angular displacement sensor A (5) calculates automatically the convexity of roll with the data that angular displacement sensor B (6) feeds back and axially takes turns Wide curve.

5. a kind of roll crown measurement apparatus according to any one in Claims 1 to 4, it is characterised in that described Support (1) include along roll axial direction arrange vertical support arm (11) and two vertical with vertical support arm (11) it is horizontal To support arm (12), two cross-brace arms (12) are symmetricly set on the both lateral sides of vertical support arm (11), i.e. bracing frame (1) Lateral symmetry structure is set to, and the axial line of roll is located in longitudinal semi-section of vertical support arm (11), two measurements Fork (3) is respectively hinged at bottom of two cross-brace arms (12) away from vertical support arm (11) one end, and is located at same Two measuring oscillating bars (3) in the plane vertical with roll axial line are symmetrical with regard to longitudinal semi-section of vertical support arm (11).

6. a kind of roll crown measurement apparatus according to claim 5, it is characterised in that the rolling support is for being arranged on Other two measuring oscillating bars (3) of bracing frame (1) bottom and be hinged on measuring oscillating bar end four additional measurement contact ball (4), two measuring oscillating bars (3) are also separately connected with bracing frame (1) by two cross-brace arms (12) in addition, four cross-braces Arm (12) is symmetricly set on the both lateral sides of vertical support arm (11) two-by-two, four measuring oscillating bars (3) be respectively hinged at four it is horizontal To support arm (12) away from vertical support arm (11) one end bottom.