Roll gap measuring micrometer support

Abstract

The utility model relates to a roll gap measuring micrometer support, comprising a bottom frame comprising a first support leg and a second support leg which are erected on the peripheral side of a roller and are tangent to the roller; the mounting mechanism is arranged on the bottom frame and is used for mounting the micrometer, so that the micrometer is vertical to the peripheral side of the roller shaft; the first supporting leg and the second supporting leg are symmetrically arranged on the two sides of the mounting mechanism. When the roll gap measuring micrometer support provided by the utility model is used, the micrometer is fixed on the bottom frame through the mounting mechanism, and then the first supporting leg and the second supporting leg are placed on a roller, so that the size of a roll gap can be measured by adjusting the extension length of the micrometer until the micrometer is propped against another roller. And the measurement error caused by holding the micrometer by hand is reduced. And meanwhile, the roll gap measuring micrometer bracket is low in cost, so that the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of roll gap measurement, in particular to a micrometer bracket for roll gap measurement. Background Art

[0002] The currently commonly used roll gap opening measuring instrument consists of a rollable bracket, an extension rod and a dial gauge head, and is expensive. The quotations of different suppliers for a set of roll gap measuring instrument that can measure roll gaps from 120 mm to 600 mm range from 10,000 yuan to 20,000 yuan. The roll gap gauge has the advantages of high precision (the theoretical error range is 0.01 - 0.05 mm), wide measuring range (requiring a lengthening rod), fast reading, being able to display the real distance between the roll surfaces in real time, and being adaptable to various roll diameters. However, correspondingly, it is also expensive. In actual use, there are usually only several main rolls that need to correct the parallelism by adjusting the roll gap. The diameters of the 6 rolls that need to adjust the parallelism in the temper mill are the same, and strong versatility is not required. At the same time, when adjusting the parallelism, it is not necessary to know the real distance between the rolls, and only a relative dimension that can reflect the change of the roll gap is needed. In actual measurement, it is found that the digital display roll gap measuring instrument cannot enter some positions with small space.

[0003] Generally, the low-cost method adopted is to directly measure the distance between two cylindrical surfaces with a micrometer, (as Figures 4-5 shown). The measurer needs to swing the micrometer in directions 10 and 20 and directions 30 and 40 to find the closest point of the current point of the right roll relative to the left roll, and then swing in directions 50 and 60 to find the closest point between the current point of the left roll and the right roll. Repeat the above steps until the micrometer just touches the two rolls between a certain two points and does not touch the roll surface at other points. At this time, the distance displayed by the micrometer is the distance of the roll gap between the two rolls.

[0004] Although this method has low cost, it is greatly affected by personal hand feeling. The roll gap distances measured by different people often have large differences. Because there are many degrees of freedom and the roll surface itself will rotate, it is necessary to practice repeatedly for many times to barely measure accurately, and the accuracy is difficult to guarantee. Content of the Utility Model

[0005] To solve the above problems, the present technical solution provides a micrometer bracket for roll gap measurement.

[0006] To achieve the above object, the present technical solution is as follows:

[0007] A micrometer bracket for roll gap measurement, comprising

[0008] a chassis, which includes a first support leg and a second support leg for being erected on the periphery of a roll and tangent to the roll;

[0009] An installation mechanism is provided on the chassis and is for installing a micrometer, so that the micrometer is perpendicular to the circumferential side of the roller shaft.

[0010] The first support leg and the second support leg are symmetrically arranged on both sides of the installation mechanism.

[0011] For a roller gap measurement micrometer bracket as described above, the installation mechanism includes an adjusting nut that is in threaded cooperation with the chassis, and the adjusting nut is for inserting the micrometer.

[0012] For a roller gap measurement micrometer bracket as described above, the included angle a between the bottom surface of the first support leg and the bottom surface of the second support leg is 130°.

[0013] For a roller gap measurement micrometer bracket as described above, the top of the chassis is provided with a top end surface, and the adjusting nut is fastened on the top end surface.

[0014] For a roller gap measurement micrometer bracket as described above, the distance L from the top end surface to the roller is 25 mm.

[0015] For a roller gap measurement micrometer bracket as described above, the installation mechanism includes an installation hole, the axis of the installation hole coincides with the diameter of the roller, and the installation hole is for inserting the micrometer.

[0016] For a roller gap measurement micrometer bracket as described above, the adjusting nut includes a main body portion and a connecting portion integrally connected to the main body portion. The connecting portion is connected to the chassis, and the main body portion is connected to the micrometer.

[0017] For a roller gap measurement micrometer bracket as described above, the connecting portion is in threaded connection with the chassis.

[0018] For a roller gap measurement micrometer bracket as described above, a ferrule connected to the chassis is provided on the chassis. The ferrule is provided with a ferrule hole and a positioning mechanism. The positioning mechanism includes a positioning bead provided on the side wall of the ferrule hole and a spring that pushes the positioning bead to protrude from the inner wall of the ferrule hole. A positioning ring is recessed on the circumferential side of the connecting portion.

[0019] For a roller gap measurement micrometer bracket as described above, a plurality of the positioning mechanisms are arranged along the length direction of the ferrule hole.

[0020] The beneficial effects of this application are:

[0021] The utility model provides a micrometer bracket for roll gap measurement. When in use, the micrometer is fixed on the chassis through the installation mechanism, and then the first support foot and the second support foot are placed on the roller. At this time, by adjusting the extension length of the micrometer until it presses against another roller, the size of the roll gap can be measured. This reduces the measurement error caused by manually holding the micrometer. At the same time, the cost of the micrometer bracket for roll gap measurement is low, which is beneficial to cost reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments.

[0023] Figure 1 is the structural schematic diagram of Embodiment 1;

[0024] Figure 2 is the structural schematic diagram of Embodiment 2;

[0025] Figure 3 is the structural schematic diagram of Embodiment 3;

[0026] Figure 4 is the front view of the existing direct measurement method;

[0027] Figure 5 is the top view of the existing direct measurement method. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Embodiment 1: A micrometer bracket for roll gap measurement, comprising

[0030] a chassis 1, which includes a first support foot 11 and a second support foot 12 for being disposed on the circumferential side of the roller 6 and tangent to the roller 6;

[0031] an installation mechanism 2, which is disposed on the chassis 1 and for installing the micrometer 7 so that the micrometer is perpendicular to the circumferential side of the roll shaft;

[0032] The first support foot 11 and the second support foot 12 are symmetrically disposed on both sides of the installation mechanism 2.

[0033] The utility model provides a micrometer bracket for roll gap measurement. When in use, the micrometer is fixed on the chassis through the installation mechanism, and then the first support foot and the second support foot are placed on the roller. At this time, by adjusting the protruding length of the micrometer until it presses against another roller, the size of the roll gap can be measured, reducing the measurement error caused by manually holding the micrometer. At the same time, the cost of the roll gap measurement micrometer bracket is low, which is beneficial to cost reduction.

[0034] Fix the micrometer on the chassis. At this time, rotate the chassis or the roller surface, and at the same time adjust the micrometer thimble. When the micrometer just touches a little bit of the roller surface, the reading is the distance between the two cylindrical surfaces. Although the height of the top of the micrometer bracket relative to the distance of the cylindrical surface is affected by the outer diameter of the cylinder (set as X) and will change, the reference roller surface selected during the roll system adjustment is the same roller. The actual distance is approximately X + the micrometer reading. Since X is the same, the micrometer reading can be directly used to replace the actual distance to adjust the parallelism. The cylindricity error of the roller surface is usually within 0.02 mm affected by the machining accuracy of the lathe. The micrometer bracket is processed by wire cutting, with a simple process but extremely high precision. The theoretical error does not exceed 0.01 mm, and the cumulative error theoretically does not exceed 0.05 mm. The precision requirement for roll system adjustment is that the parallelism error does not exceed 0.1 mm, and this bracket can meet the measurement precision requirements.

[0035] The cost of a micrometer bracket is 280 yuan, and a 14-mm-thick adjusting nut is required to cover all ranges (as Figure 1 shown). The price of the adjusting nut is 75 yuan. The micrometer can use the old one and does not need to be purchased additionally. The usage cost is much lower than that of the general digital display roll gap opening measuring instrument, and the volume is smaller, and the roll gap can be measured at a position with a small space.

[0036] Compared with directly using a micrometer for measurement, which requires controlling the movement in 6 directions simultaneously, using the micrometer bracket only requires controlling the movement in 1 direction, greatly reducing the measurement difficulty and the training time for measurement personnel.

[0037] The measurement method of the micrometer bracket is the same as the principle of the general roll gap opening measuring instrument, but it is simplified for the special working condition of parallelism adjustment, reducing the cost.

[0038] Further, as a preferred implementation manner of this solution rather than a limitation, the installation mechanism 2 includes an adjusting nut 21 that is threadedly engaged with the chassis 1, and the adjusting nut 21 is for the micrometer to be inserted.

[0039] Further, as a preferred implementation manner of this solution rather than a limitation, the included angle a between the bottom surface of the first support foot 11 and the bottom surface of the second support foot 12 is 130°.

[0040] Further, as a preferred implementation manner rather than a limitation of this solution, the top of the chassis 1 is provided with a top surface 13, and the adjusting nut 21 is fastened on the top surface 13. The top surface is perpendicular to the axis of the adjusting nut.

[0041] Further, as a preferred implementation manner rather than a limitation of this solution, the distance L between the top surface 13 and the roller is 25 mm.

[0042] Embodiment 2: The mounting mechanism 2 includes a mounting hole 22, the axis of the mounting hole 22 coincides with the diameter of the roller, and the micrometer is inserted into the mounting hole 22.

[0043] Further, as a preferred implementation manner rather than a limitation of this solution, the adjusting nut 21 includes a main body portion 211 and a connecting portion 212 integrally connected to the main body portion 211. The connecting portion 212 is connected to the chassis 1, and the main body portion 211 is connected to the micrometer.

[0044] Further, as a preferred implementation manner rather than a limitation of this solution, the connecting portion 212 is threadedly connected to the chassis 1.

[0045] Embodiment 3: A ferrule 4 connected to the chassis 1 is provided on the chassis 1. The ferrule 4 is provided with a ferrule hole 41 and a positioning mechanism 5. The positioning mechanism 5 includes positioning beads 51 provided on the side wall of the ferrule hole 41 and a spring 52 that pushes the positioning beads 51 to protrude from the inner wall of the ferrule hole 41. A positioning ring 213 is recessed on the peripheral side of the connecting portion 212. This facilitates disassembly and connection and adapts to different distances of the roll gap.

[0046] Further, as a preferred implementation manner rather than a limitation of this solution, a plurality of the positioning mechanisms 5 are arranged along the length direction of the ferrule hole 41.

[0047] The above are only the preferred embodiments of this application and are not used to limit the scope of implementation of this application. All those whose principles and basic structures are the same as or similar to this application are within the protection scope of this application.

Claims

1. A roll gap measuring micrometer bracket, characterized in that: include A base frame (1) comprising a first support leg (11) and a second support leg (12) for being mounted on the circumference of a roller and tangential to the roller; A mounting mechanism (2) is arranged on the base frame (1) and is used to mount the micrometer so that the micrometer is perpendicular to the circumference of the roller shaft; The first supporting leg (11) and the second supporting leg (12) are symmetrically arranged on both sides of the mounting mechanism (2).

2. A roll gap measuring micrometer bracket according to claim 1, characterized in that: The mounting mechanism (2) comprises an adjusting nut (21) threadably matched with the base frame (1), and the adjusting nut (21) is for a micrometer to be inserted.

3. A roll gap measuring micrometer bracket according to claim 2, characterized in that: The included angle a between the bottom surface of the first support leg (11) and the bottom surface of the second support leg (12) is 130°.

4. A roll gap measuring micrometer bracket according to claim 2, characterized in that: The top of the base frame (1) is provided with a top end surface (13), and the adjustment nut (21) is fastened on the top end surface (13).

5. A roll gap measuring micrometer bracket according to claim 4, characterized in that: The distance L between the top end surface (13) and the roller is 25 mm.

6. The roll gap measuring micrometer bracket according to claim 1, characterized in that: The mounting mechanism (2) comprises a mounting hole (22), the axis of the mounting hole (22) coincides with the diameter of the roller, and the mounting hole (22) is for inserting a micrometer.

7. The roll gap measuring micrometer bracket according to claim 2, characterized in that: The adjusting nut (21) comprises a main body (211) and a connecting portion (212) integrally connected to the main body (211); the connecting portion (212) is connected to the base frame (1); and the main body (211) is connected to a micrometer.

8. The roll gap measuring micrometer bracket according to claim 7, characterized in that: The connection portion (212) is threadedly connected to the base frame (1).

9. The roll gap measuring micrometer bracket according to claim 7, characterized in that: The base frame (1) is provided with a ring (4) connected thereto, the ring (4) is provided with a sleeve hole (41), and a positioning mechanism (5), the positioning mechanism (5) comprising a positioning bead (51) arranged on the side wall of the sleeve hole (41), and a spring (52) for pushing the positioning bead (51) to protrude from the inner wall of the sleeve hole (41), and a positioning ring (213) is recessed on the peripheral side of the connecting portion (212).

10. A roll gap measuring micrometer bracket according to claim 9, characterized in that: A plurality of positioning mechanisms (5) are arranged along the length direction of the sleeve hole (41).

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