CN213301698U - Device suitable for calibrating full-range dynamic sensor - Google Patents
Device suitable for calibrating full-range dynamic sensor Download PDFInfo
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- CN213301698U CN213301698U CN202022818037.9U CN202022818037U CN213301698U CN 213301698 U CN213301698 U CN 213301698U CN 202022818037 U CN202022818037 U CN 202022818037U CN 213301698 U CN213301698 U CN 213301698U
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Abstract
The utility model discloses a device suitable for calibration full range dynamic sensor belongs to the high-speed homogeneity of tire experiment technical field. The technical scheme is as follows: the device comprises a fixing mechanism, wherein the fixing mechanism is detachably and fixedly arranged on a testing machine, and standard dynamometer mounting holes are respectively formed in the center, the left side and the right side of the fixing mechanism corresponding to a dynamic sensor connecting disc; the dynamic sensor connecting disc comprises a dynamic sensor connecting disc, a first connecting sleeve, a second connecting sleeve and a connecting ejector rod, wherein the first connecting sleeve is detachably connected to the standard dynamometer, and the second connecting sleeve is detachably connected to the center of the dynamic sensor connecting disc; the two ends of the connecting ejector rod are provided with reverse threads, and the two ends of the connecting ejector rod are respectively in threaded connection with the first connecting sleeve and the second connecting sleeve. The utility model discloses a full range to dynamic sensor calibrates, has satisfied the demand that 3000~5000N wide range calibration of clear experiment checked, compares the weight mode high efficiency accuracy more.
Description
Technical Field
The utility model relates to a high-speed homogeneity of tire experiment technical field, concretely relates to device suitable for calibration full range dynamic sensor.
Background
The high-speed uniformity testing machine is mainly used for performing high-speed uniformity experiments, clean experiments, Flat-spot experiments and the like of tires and is an important index in vehicle vibration comfort evaluation. The tester is obtained by measuring the fluctuation generated by the rotation of the tire by using a dynamic sensor. The indexes of the high-speed uniformity of the tire are mainly related parameters through judgment. Therefore, the accuracy of the measurement data of the dynamic sensor needs to be ensured through calibration.
At present, the tire uniformity testing machine calibration specification JJF1839-2020 is mainly aimed at low-speed uniformity radial force and lateral force, and high-speed uniformity needs to measure tangential force, so that the tangential force direction of a dynamic sensor needs to be calibrated. In contrast, patent documents for calibrating a tire high-speed uniformity tester, such as CN201520724134.8, which are currently available, mainly design an auxiliary tool, and perform the calibration by using a weight suspension method. Taking lateral force calibration as an example, firstly, a designed full-range calibration mechanism is fixed on a flange plate of a main shaft of a tire by bolts, and the calibration mechanism is connected with a main shaft frame by a screw rod. At the moment, the whole tool is in a state without any other force interference, the dynamic sensor is reset to zero, and the output force value of the dynamic sensor is kept to be 0. At the moment, the lateral force of the dynamic sensor is calibrated in a mode that a steel wire rope is connected to a lateral force connecting rod to suspend a standard weight.
However, with the development of the technology, the existing high-speed uniformity testing machine needs to test the clean experiment, and the test range of the clean experiment is generally 3000-5000N, so that the calibration and verification are performed by using weights, and the quantity and the quality are limited.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the device overcomes the defects of the prior art, provides the device suitable for calibrating the full-range dynamic sensor, realizes the calibration of the full-range of the dynamic sensor, meets the requirement of the clean experiment for 3000-5000N large-range calibration and verification, and is more efficient and accurate in weight mode comparison.
The technical scheme of the utility model is that:
the device is suitable for calibrating the full-range dynamic sensor and comprises a fixing mechanism, wherein the fixing mechanism is detachably and fixedly arranged on a testing machine, and standard dynamometer mounting holes are respectively formed in the center, the left side and the right side of a connecting disc of the dynamic sensor, which correspond to the fixing mechanism; the dynamic sensor connecting disc comprises a dynamic sensor connecting disc, a first connecting sleeve, a second connecting sleeve and a connecting ejector rod, wherein the first connecting sleeve is detachably connected to the standard dynamometer, and the second connecting sleeve is detachably connected to the center of the dynamic sensor connecting disc; the two ends of the connecting ejector rod are provided with reverse threads, and the two ends of the connecting ejector rod are respectively in threaded connection with the first connecting sleeve and the second connecting sleeve.
Preferably, the fixing mechanism comprises a first connecting plate, two ends of the first connecting plate are respectively provided with a second connecting plate, the other end of the second connecting plate is provided with a mounting plate, and the fixing mechanism is detachably and fixedly mounted with the testing machine through the mounting plate; and the second connecting plate is positioned at two sides of the dynamic sensor connecting disc and is provided with standard dynamometer mounting holes at corresponding positions.
Preferably, the mounting plate is provided with a positioning pin, and the testing machine is provided with a positioning hole corresponding to the positioning pin.
Preferably, a reinforcing rib plate is arranged between the second connecting plate and the mounting plate.
Preferably, a standard load cell bolt is mounted at the standard load cell mounting hole.
Preferably, a threaded hole penetrating through the first connecting sleeve is formed in the center of the first connecting sleeve, and the first connecting sleeve is connected with a standard dynamometer through a bolt; the center of the second connecting sleeve is provided with a non-through threaded hole, a raised screw rod is arranged on the surface of the second connecting sleeve, which is far away from the threaded hole, and the second connecting sleeve is in threaded connection with the dynamic sensor connecting disc through the screw rod.
Preferably, the middle part of the connecting ejector rod is hexagonal prism-shaped.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses a standard dynamometer, first adapter sleeve, second adapter sleeve and connection ejector pin rotate and connect the ejector pin, apply the same power for standard dynamometer and dynamic sensor, can adjust required power value of applying in a flexible way, realized calibrating dynamic sensor's full range scope, satisfied clean experiment 3000~5000N wide range calibration check's demand, compare the weight mode high-efficient accuracy more.
2. The utility model discloses a mode through bolt, screw thread and locating pin is all fixed for each part, has guaranteed that standard dynamometer and connection ejector pin do not have slip angle and camber angle, confirms the calibration accuracy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the securing mechanism.
Fig. 3 is a top view of the first coupling sleeve.
Fig. 4 is a front view of the second connecting sleeve.
In the figure, 1-a testing machine, 2-a dynamic sensor connecting disc, 3-a standard dynamometer mounting hole, 4-a first connecting sleeve, 5-a second connecting sleeve, 6-a connecting ejector rod, 7-a standard dynamometer, 8-a first connecting plate, 9-a second connecting plate, 10-a mounting plate, 11-a reinforcing rib plate and 12-a screw rod.
Detailed Description
Example 1
As shown in fig. 1-4, the present embodiment provides a device suitable for calibrating a full-range dynamic sensor, which includes a fixing mechanism made of stainless steel, the fixing mechanism includes a first connecting plate 8, two ends of the first connecting plate 8 are respectively provided with a second connecting plate 9, the other end of the second connecting plate 9 is provided with a mounting plate 10, and the fixing mechanism is detachably and fixedly mounted with a testing machine 1 through the mounting plate 10; the center of the first connecting plate 8 corresponding to the dynamic sensor connecting disc 2 is provided with a standard dynamometer 7 mounting hole 3, the second connecting plate 9 is positioned on two sides of the dynamic sensor connecting disc 2 and is provided with the standard dynamometer 7 mounting hole 3 in a corresponding position, and the standard dynamometer 7 is in bolted connection with the standard dynamometer 7 mounting hole 3 of the first connecting plate 8 or the second connecting plate 9.
The device also comprises a first connecting sleeve 4, a second connecting sleeve 5 and a connecting ejector rod 6, wherein a threaded hole penetrating through the first connecting sleeve 4 is formed in the center of the first connecting sleeve 4, and the first connecting sleeve 4 is connected with a standard dynamometer 7 through a bolt; a non-through threaded hole is formed in the center of the second connecting sleeve 5, a raised screw 12 is arranged on the surface of the second connecting sleeve 5, which is opposite to the threaded hole, and the second connecting sleeve 5 is in threaded connection with the dynamic sensor connecting disc 2 through the screw 12; two ends of the connecting ejector rod 6 are provided with reverse threads, and two ends of the connecting ejector rod 6 are respectively in threaded connection with the first connecting sleeve 4 and the second connecting sleeve 5.
The method for performing calibration check on the dynamic sensor by using the device of the embodiment comprises the following steps:
1. mounting the mounting plate 10 of the fixing mechanism on the testing machine 1 through bolts;
2. the first connecting sleeve 4 is fixed on the standard dynamometer 7 through bolts;
3. the second connecting sleeve 5 is connected to the center of the connecting disc 2 of the dynamic sensor in a threaded mode;
4. the standard dynamometer 7 is fixed on a first connecting plate 8 of the fixing mechanism through bolts;
5. two ends of the connecting ejector rod 6 are respectively connected to the first connecting sleeve 4 and the second connecting sleeve 5 in a threaded manner, so that the whole device is assembled (at the moment, the standard dynamometer 7 corresponds to the Y direction);
6. then the whole device is in a state without any other force interference, the dynamic sensor is reset to zero, the output force value of the dynamic sensor is kept to be 0, and the standard force measuring instrument 7 is also reset to zero at the moment;
7. clamping the middle part of the connecting ejector rod 6 by using a spanner, slightly rotating the connecting ejector rod 6 anticlockwise or clockwise to apply force to the connecting ejector rod 6, so that acting force is generated on the standard dynamometer 7 and the dynamic sensor, reading numerical values on the dynamic sensor and the standard dynamometer 7 at the moment until the required measured value is reached, and finishing calibration and checking of the lateral force in the +/-Y direction;
8. the fixing mechanism is disassembled, the first connecting plate 8 is sequentially positioned right above and right below the dynamic sensor connecting disc 2, and then the fixing mechanism is installed on the testing machine 1, at the moment, one end of the connecting ejector rod 6, far away from the first connecting sleeve 4, is not connected with the second connecting sleeve 5, and is only in contact with the dynamic sensor connecting disc 2 without acting force; the connecting ejector rod 6 is rotated to generate acting force on the standard dynamometer 7 and the dynamic sensor, the numerical values of the dynamic sensor and the standard dynamometer 7 are read until the required measured value is reached, and the calibration and the verification of the tangential force in the +/-X direction are completed;
9. the fixing mechanism is disassembled, the fixing mechanism is installed on the testing machine 1 after the first connecting plate 8 is over against the center of the dynamic sensor connecting disc 2, the standard dynamometer 7 is disassembled from the first connecting plate 8 and is installed on the standard dynamometer 7 installing holes 3 of the two second connecting plates 9 in sequence, one end of the connecting ejector rod 6, far away from the first connecting sleeve 4, is not connected with the second connecting sleeve 5, and the end is only in contact with the dynamic sensor connecting disc 2 without acting force; the connecting ejector rod 6 is rotated to generate acting force on the standard force measuring instrument 7 and the dynamic sensor, the numerical values on the dynamic sensor and the standard force measuring instrument 7 are read until the required measured value is reached, and the calibration and the verification of the radial force in the +/-Z direction are completed.
The embodiment utilizes the high-precision GTM standard dynamometer 7 to cover the full range, can ensure the accuracy of data, meets the requirement of calibration and verification in a large range of 3000-5000N of clear experiments, and is more efficient and accurate in weight mode.
Example 2
On the basis of embodiment 1, be provided with the locating pin on the mounting panel 10, the position that corresponds the locating pin on testing machine 1 is provided with the locating hole, like this when installing fixed establishment on testing machine 1, just can fix a position fast, improves the installation rate, can also guarantee the steadiness of fixed establishment installation simultaneously.
Example 3
On the basis of embodiment 1, a reinforcing rib plate 11 is arranged between the second connecting plate 9 and the mounting plate 10, so that the fixing mechanism is more stable.
Example 4
On the basis of embodiment 1, the middle part of the connecting ejector rod 6 is hexagonal, so that the connecting ejector rod 6 can be screwed by a wrench conveniently, and the operation is more convenient and labor-saving.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The device suitable for calibrating full-range dynamic sensor is characterized in that:
the device comprises a fixing mechanism, wherein the fixing mechanism is detachably and fixedly arranged on a testing machine (1), and standard force measuring instrument mounting holes (3) are respectively formed in the center, the left side and the right side of a dynamic sensor connecting disc (2) of the fixing mechanism;
the dynamic sensor connecting disc comprises a dynamic sensor connecting disc (2), and is characterized by further comprising a first connecting sleeve (4), a second connecting sleeve (5) and a connecting ejector rod (6), wherein the first connecting sleeve (4) is detachably connected to a standard dynamometer (7), and the second connecting sleeve (5) is detachably connected to the center of the dynamic sensor connecting disc (2); two ends of the connecting ejector rod (6) are provided with reverse threads, and two ends of the connecting ejector rod (6) are respectively in threaded connection with the first connecting sleeve (4) and the second connecting sleeve (5).
2. The apparatus for calibrating a full-scale dynamic sensor of claim 1, wherein:
the fixing mechanism comprises a first connecting plate (8), two ends of the first connecting plate (8) are respectively provided with a second connecting plate (9), the other end of the second connecting plate (9) is provided with a mounting plate (10), and the fixing mechanism is detachably and fixedly mounted with the testing machine (1) through the mounting plate (10);
the first connecting plate (8) is provided with a standard dynamometer mounting hole (3) corresponding to the center of the dynamic sensor connecting disc (2), and the second connecting plate (9) is located on two sides of the dynamic sensor connecting disc (2) and is provided with the standard dynamometer mounting hole (3) in the corresponding position.
3. The apparatus for calibrating a full-scale dynamic sensor of claim 2, wherein: be provided with the locating pin on mounting panel (10), the position that corresponds the locating pin on testing machine (1) is provided with the locating hole.
4. The apparatus for calibrating a full-scale dynamic sensor of claim 2, wherein: and a reinforcing rib plate (11) is arranged between the second connecting plate (9) and the mounting plate (10).
5. The apparatus for calibrating a full-scale dynamic sensor of claim 1, wherein: and the standard dynamometer (7) is mounted at the standard dynamometer mounting hole (3) through a bolt.
6. The apparatus for calibrating a full-scale dynamic sensor of claim 1, wherein: a through threaded hole is formed in the center of the first connecting sleeve (4), and the first connecting sleeve (4) is connected with a standard dynamometer (7) through a bolt; a non-through threaded hole is formed in the center of the second connecting sleeve (5), a raised screw rod (12) is arranged on the surface, deviating from the threaded hole, of the second connecting sleeve (5), and the second connecting sleeve (5) is in threaded connection with the dynamic sensor connecting disc (2) through the screw rod (12).
7. The apparatus for calibrating a full-scale dynamic sensor of claim 1, wherein: the middle part of the connecting ejector rod (6) is hexagonal prism-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022818037.9U CN213301698U (en) | 2020-11-30 | 2020-11-30 | Device suitable for calibrating full-range dynamic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022818037.9U CN213301698U (en) | 2020-11-30 | 2020-11-30 | Device suitable for calibrating full-range dynamic sensor |
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| Publication Number | Publication Date |
|---|---|
| CN213301698U true CN213301698U (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022818037.9U Active CN213301698U (en) | 2020-11-30 | 2020-11-30 | Device suitable for calibrating full-range dynamic sensor |
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| Country | Link |
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| CN (1) | CN213301698U (en) |
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- 2020-11-30 CN CN202022818037.9U patent/CN213301698U/en active Active
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