Indication error calibration device for roller meter counter

Abstract

The utility model discloses a roller meter counter indicating value error calibration device, which relates to the technical field of roller meter counter error calibration, and comprises a bottom plate and a roller meter counter, the rear side of the top of the bottom plate is fixedly connected with a side plate, and the front side of the side plate is movably connected with a driving wheel and a driven wheel through a rotating shaft. The driving wheel and the driven wheel are connected with each other through a belt, the top of the roller meter counter is provided with a fixing support, the front side of the driving wheel is fixedly connected with a lead screw, and the front side of the lead screw is fixedly connected with a handle; the moving distance of the belt is measured through the roller meter counter, the rotation stroke of the belt when the handle rotates by one circle can be calculated according to the screw pitch of the lead screw, the radius of the driving wheel, the thickness of the belt and other structural sizes, the calculated stroke value is compared with the measured value of the roller meter counter, and the error value of the roller meter counter can be obtained. Moreover, the device is small in occupied area, is convenient to operate, and can measure the indication error of the roller meter counter more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of error calibration of a roller meter counter, in particular to a device for calibrating the indication error of a roller meter counter. Background Art

[0002] The roller meter is a mechanical counter, mainly composed of a roller, a counter, a reducer, etc. The working principle of the roller meter is to provide the output shaft of the counter with a left and right rotating force from the outside, thereby obtaining addition and subtraction counts.

[0003] It is inevitable that there will be some error in the actual measurement of the roller meter, but as long as the error is within the standard range, it can be used normally. If the error exceeds the standard range, it cannot be used.

[0004] In the prior art, when measuring the error value of a roller meter, a standard sample of a certain length needs to be set, such as a 10-meter or 100-meter-long line. Such a sample occupies a large area and the measurement operation is inconvenient. Therefore, the present application proposes a roller meter indication error calibration device. Summary of the invention

[0005] The utility model provides a roller meter indication error calibration device to solve the above technical problems.

[0006] In order to solve the above technical problems, the utility model provides a roller meter indication error calibration device, comprising a base plate and a roller meter, the roller meter is located above the base plate, the rear side of the top of the base plate is fixedly connected to a side plate, the front side of the side plate is movably connected to a driving wheel and a driven wheel through a rotating shaft, the driving wheel is located on one side of the driven wheel, and the driving wheel and the driven wheel are connected to each other through a belt, the roller meter is located at the top of the belt, a fixed bracket is installed on the top of the roller meter, a screw rod is fixedly connected to the front side of the driving wheel, a handle is fixedly connected to the front side of the screw rod, the top of the base plate is fixedly connected to a base, the top of the base is fixedly connected to a guide rail, the top of the guide rail is slidably connected to a slider, the screw rod passes through the slider, and the screw rod and the slider are connected by threads, two scale lines are processed on the top of the base, and the guide rail is located between the two scale lines.

[0007] Preferably, the fixed bracket includes a mounting plate 1 and a mounting plate 2, the mounting plate 1 is fixedly connected to one side of the roller meter by bolts, the mounting plate 2 is fixedly connected to the front side of the side plate, the mounting plate 1 is located on one side of the mounting plate 2, and the mounting plate 1 and the mounting plate 2 are fixedly connected by bolts.

[0008] Preferably, a groove is formed on one side of the second mounting plate, the first mounting plate passes through the groove, and the outer end of the first mounting plate is matched with the inside of the groove.

[0009] Preferably, an opening is provided on one side of the mounting plate one, and a bolt close to the mounting plate two passes through the opening.

[0010] Preferably, the outer surface of the slider is processed with an aiming line.

[0011] Preferably, a support block is fixedly connected to the front side of the top of the bottom plate, the support block is located in front of the base, the screw rod passes through the support block, and the screw rod and the support block are movably connected via a bearing.

[0012] Compared with the related art, the device for calibrating the indication error of a roller meter provided by the utility model has the following beneficial effects:

[0013] The belt is driven to rotate by the handle, screw, driving wheel and driven wheel, and the roller meter measures the belt movement distance. The belt rotation stroke for each turn of the handle can be calculated based on the screw pitch, driving wheel radius, belt thickness and other structural dimensions. The calculated stroke value is compared with the roller meter measurement value to obtain the roller meter error value. The overall structure of the device is simple, the footprint is small, the operation is convenient, and the indication error of the roller meter can be measured more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a roller meter indication error calibration device proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the bottom plate and side plate structure of a roller meter indication error calibration device proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the base and guide rail structure of a roller meter indication error calibration device proposed by the utility model;

[0017] Figure 4 The utility model discloses a roller meter counter and a mounting plate structure diagram of a roller meter counter indication error calibration device.

[0018] Numbers in the figure: 1, bottom plate, 2, side plate, 3, driving wheel, 4, driven wheel, 5, belt, 6, roller meter, 7, mounting plate one, 8, opening, 9, mounting plate two, 10, groove, 11, screw rod, 12, handle, 13, base, 14, guide rail, 15, slider, 16, aiming line, 17, scale line, 18, support block. DETAILED DESCRIPTION

[0019] Example, by Figure 1-4The utility model comprises a bottom plate 1 and a roller meter 6, wherein the roller meter 6 is located above the bottom plate 1, the top rear side of the bottom plate 1 is fixedly connected to a side plate 2, the front side of the side plate 2 is movably connected to a driving wheel 3 and a driven wheel 4 through a rotating shaft, the driving wheel 3 is located on one side of the driven wheel 4, and the driving wheel 3 and the driven wheel 4 are connected to each other through a belt 5, the roller meter 6 is located on the top of the belt 5, a fixed bracket is installed on the top of the roller meter 6, a screw rod 11 is fixedly connected to the front side of the driving wheel 3, a handle 12 is fixedly connected to the front side of the screw rod 11, a base 13 is fixedly connected to the top of the bottom plate 1, a guide rail 14 is fixedly connected to the top of the base 13, a slider 15 is slidably connected to the top of the guide rail 14, the screw rod 11 passes through the slider 15, and the screw rod 11 and the slider 15 Through threaded connection, two scale lines 17 are processed on the top of the base 13, and the guide rail 14 is located between the two scale lines 17. The pitch of the screw rod 11, the radius of the driving wheel 3 and the driven wheel 4, and the thickness of the belt 5 are all fixed and known, and can be measured in advance. No further details are given here. According to these data, the rotation stroke of the belt 5 for each rotation of the handle 12 can be calculated, and the distance on the scale line 17 indicated by the aiming line 16 on the slider 15 can be obtained, so that the rotation stroke of the belt 5 corresponding to each millimeter of the scale line 17 can be obtained. According to the fixed ratio between the two, for example, the movement stroke of the belt 5 when the slider 15 moves 10 mm is read according to the scale line 17. Each time it moves 10 mm, the movement stroke of the belt 5 will be measured by the roller meter 6 each time, and the error value of the roller meter 6 can be obtained by the measured and calculated stroke difference.

[0020] The fixed bracket includes a mounting plate 1 7 and a mounting plate 2 9, the mounting plate 1 7 is fixedly connected to one side of the roller meter 6 by bolts, the mounting plate 2 9 is fixedly connected to the front side of the side plate 2, the mounting plate 1 7 is located on one side of the mounting plate 2 9, and the mounting plate 1 7 and the mounting plate 2 9 are fixedly connected by bolts, and the roller meter 6 is installed on the side plate 2 through the fixed bracket and placed on the belt 5.

[0021] A groove 10 is provided on one side of the mounting plate 2 9, the mounting plate 1 7 passes through the groove 10, and the outer end of the mounting plate 1 7 is adapted to the inside of the groove 10. The setting of the groove 10 can make the mounting plate 1 7 more stable and will not rotate at will, and can only be installed vertically.

[0022] An opening 8 is provided on one side of the mounting plate 7, and a bolt near the mounting plate 2 9 passes through the opening 8. When the bolt is loosened, the mounting plate 7 can move up and down, and the bolt passing through the opening 8 will not interfere with the mounting plate 7, so that roller meter devices 6 of different sizes can be installed and contact the belt 5.

[0023] The outer surface of the slider 15 is processed with a sighting line 16, and the moving distance of the slider 15 can be quickly read by pointing the sighting line 16 to the scale line 17.

[0024] A support block 18 is fixedly connected to the front top side of the bottom plate 1. The support block 18 is located in front of the base 13. The screw rod 11 passes through the support block 18, and the screw rod 11 and the support block 18 are movably connected via a bearing. The support block 18 supports the screw rod 11, and the bearing connection does not affect the rotation of the screw rod 11.

[0025] Working principle:

[0026] The roller meter 6 is fixed to the mounting plate 1 7 by bolts, and then the mounting plate 1 7 and the mounting plate 2 9 are fixedly connected together by bolts. The height of the mounting plate 1 7 can be adjusted until the roller on the roller meter 6 contacts the upper surface of the belt 5. The handle 12 is turned by hand. When the handle 12 is turned, the driving wheel 3 is driven to rotate through the screw rod 11, and then the belt 5 is rotated in cooperation with the driven wheel 4. During this period, the roller on the roller meter 6 will rotate due to the rotation of the belt 5. Since the screw rod 11 and the slider 15 are threadedly connected, the screw rod 11 When rotating, the slider 15 will slide along the guide rail 14. When the slider 15 slides, the moving distance of the slider 15 can be known according to the position of the aiming line 16 on the scale line 17. Every time the handle 12 rotates one circle, the moving distance of the slider 15 can be known by the position of the aiming line 16 on the scale line 17, and the structural dimensions of the device are unchanged. Therefore, the rotation stroke of the belt 5 is fixed after each rotation of the handle 12. When the roller meter 6 measures the rotation stroke of the belt 5, different measurement values ​​appear with each rotation of the handle 12, and the difference in the measurement values ​​is the error value.

Claims

1. A roller meter indication error calibration device, comprising a base plate (1) and a roller meter (6), wherein the roller meter (6) is located above the base plate (1). Features: The rear side of the top of the bottom plate (1) is fixedly connected to the side plate (2), the front side of the side plate (2) is movably connected to a driving wheel (3) and a driven wheel (4) through a rotating shaft, the driving wheel (3) is located on one side of the driven wheel (4), and the driving wheel (3) and the driven wheel (4) are connected to each other through a belt (5), the roller meter (6) is located on the top of the belt (5), and a fixed bracket is installed on the top of the roller meter (6), the front side of the driving wheel (3) is fixedly connected to a screw rod (11), and the screw rod The front side of the handle (11) is fixedly connected to a handle (12); the top of the bottom plate (1) is fixedly connected to a base (13); the top of the base (13) is fixedly connected to a guide rail (14); the top of the guide rail (14) is slidably connected to a slider (15); the screw rod (11) passes through the slider (15); the screw rod (11) and the slider (15) are connected by threads; two scale lines (17) are processed on the top of the base (13); and the guide rail (14) is located between the two scale lines (17).

2. A roller meter indication error calibration device according to claim 1, It is characterized in that The fixing bracket comprises a mounting plate 1 (7) and a mounting plate 2 (9), wherein the mounting plate 1 (7) is fixedly connected to one side of the roller meter (6) by means of bolts, and the mounting plate 2 (9) is fixedly connected to the front side of the side plate (2), the mounting plate 1 (7) is located on one side of the mounting plate 2 (9), and the mounting plate 1 (7) and the mounting plate 2 (9) are fixedly connected by means of bolts.

3. A roller meter indication error calibration device according to claim 2, It is characterized in that A groove (10) is provided on one side of the second mounting plate (9), the first mounting plate (7) passes through the groove (10), and the outer end of the first mounting plate (7) is adapted to the inside of the groove (10).

4. A roller meter indication error calibration device according to claim 2, It is characterized in that An opening (8) is provided on one side of the mounting plate one (7), and a bolt close to the mounting plate two (9) passes through the opening (8).

5. A roller meter indication error calibration device according to claim 1, It is characterized in that The outer surface of the slider (15) is processed with a sighting line (16).

6. A roller meter indication error calibration device according to claim 1, It is characterized in that A support block (18) is fixedly connected to the front side of the top of the bottom plate (1), and the support block (18) is located in front of the base (13). The screw rod (11) passes through the support block (18), and the screw rod (11) and the support block (18) are movably connected via a bearing.

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