CN215374008U - Horizontal overturning calibration test equipment - Google Patents

Abstract

The utility model relates to the technical field of inertia device testing, and discloses horizontal turnover calibration testing equipment, which comprises a self-leveling test bench and an inertia device testing tool, wherein the self-leveling test bench comprises: the horizontal test surface is used for installing an inertia device test tool; the fixed pivot is fixed at the bottom of the horizontal test surface; the two tilt angle sensors are respectively fixed on the horizontal test surface and are not parallel; the two movable control supporting points are arranged at the bottom of the horizontal testing surface, and the tilt sensor is electrically connected with the movable control supporting points; the inertial device testing tool is arranged on the top surface of the horizontal testing surface; the self-leveling test bench of the horizontal turnover calibration test equipment utilizes the tilt angle sensor to determine the difference between the horizontal test surface and the horizontal state, and adjusts the movable control fulcrum according to the measured inclination direction and angle, so that the horizontal test surface reaches the horizontal state, and the self-leveling test bench can automatically and accurately adjust to the horizontal state.

Description

Horizontal overturning calibration test equipment

Technical Field

The utility model relates to the technical field of testing of inertial devices, in particular to a horizontal overturning calibration testing device.

Background

Due to the limitation of the manufacturing process, certain errors often exist in the inertia device, the inertia device is calibrated and tested, the error rule is mastered, the errors can be compensated, and the use precision of an instrument formed by the inertia device is improved. The horizontal overturning calibration test of the inertia device needs to be carried out on a special horizontal test bench, the leveling work of the existing horizontal test bench is mostly carried out manually, the efficiency and the accuracy are low, and the accurate calibration test result is not easy to obtain. Meanwhile, the existing horizontal test bench is sensitive to external vibration, and the accuracy of the test result is also influenced when the external vibration is transmitted to the horizontal test bench. In addition, during testing, the power supply line and the signal transmission line need to be connected to the inertial device, and the cables have certain restraining effect on the inertial device, so that natural movement of the inertial device is influenced, and the accuracy of a test result is further reduced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a horizontal overturning calibration test device which can automatically adjust the supporting height and ensure the levelness of a measuring surface.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides a horizontal upset calibration test equipment, includes self-leveling test platform and inertia device test fixture, self-leveling test platform includes: the horizontal test surface is used for installing the inertial device test tool and providing a horizontal plane for the inertial device test tool; the fixed pivot is fixed at the bottom of the horizontal test surface and used for supporting the horizontal test surface; the two tilt angle sensors are respectively fixed on the horizontal testing surface, are unparallel and are used for feeding back tilt angle information of the horizontal testing surface and the horizontal plane; the two movable control fulcrums are mounted at the bottom of the horizontal testing surface, the tilt sensor is electrically connected with the movable control fulcrums, and the movable control fulcrums are used for rising or lowering according to tilt information fed back by the tilt sensor and adjusting the levelness of the horizontal testing surface; the inertia device testing tool is installed on the top surface of the horizontal testing surface and used for installing an inertia device.

In the present invention, preferably, the movable control fulcrum is an electric telescopic rod, and the electric telescopic rod is electrically connected to the tilt sensor through a horizontal control plate.

In the utility model, preferably, the top surface of the horizontal test surface is provided with a plurality of test probes, and the inertia device test tool is provided with a plurality of test contacts corresponding to the test probes; a cable concentrator corresponding to the test probe is arranged on the side surface of the horizontal test surface and is electrically connected with the test probe; the test probe, the test contact and the cable concentrator are used for supplying power to the inertial device and transmitting test information.

In the utility model, preferably, the self-leveling test bench further comprises a metal supporting frame, and the metal supporting frame is fixed at the bottoms of the fixed fulcrum and the movable control fulcrum and is used for supporting the fixed fulcrum, the movable control fulcrum and the horizontal test surface.

In the utility model, the vibration isolation foundation comprises a building foundation, a vibration isolation pit and a vibration absorption material, the bottom of the metal supporting frame is fixedly connected with the building foundation, the building foundation is embedded in the vibration isolation pit, and the vibration absorption material is filled between the inner wall of the vibration isolation pit and the building foundation.

In the utility model, the shock insulation system preferably further comprises a shock insulation foundation, wherein the shock insulation foundation comprises a building foundation, a shock insulation pit and a shock absorption material, the bottoms of the fixed supporting point and the movable control supporting point are fixedly connected with the building foundation, the building foundation is embedded in the shock insulation pit, and the shock absorption material is filled between the inner wall of the shock insulation pit and the building foundation.

In the present invention, preferably, the shock absorbing material is building sand.

In the present invention, preferably, the two tilt sensors are respectively parallel to two connecting lines formed by the two movable control supporting points and the fixed supporting point.

In the present invention, preferably, two connecting lines formed by the two movable control supporting points and the fixed supporting point are perpendicular to each other, and the distance between the two movable control supporting points and the fixed supporting point is equal.

In the utility model, preferably, the inertial device testing tool is in a cube shape.

Compared with the prior art, the utility model has the beneficial effects that:

the horizontal overturning calibration test equipment is provided with the self-leveling test bench and the inertia device test tool, the self-leveling test bench utilizes the tilt angle sensor to determine the difference between a horizontal test surface and a horizontal state, and the movable control fulcrum is adjusted according to the measured tilting direction and angle, so that the horizontal test surface reaches the horizontal state, and the self-leveling test bench is automatically and accurately adjusted to the horizontal state; by reasonably designing the probe and the contact on the self-leveling test bench and the inertia device test tool, convenience in power supply and signal transmission of the inertia device in the test process is realized, and the influence of a complex structure of an external cable and the swing of the cable on calibration is avoided; the vibration isolation foundation absorbs the vibration of the surrounding land by using the vibration absorption material, so that the building foundation is isolated from the vibration of the surrounding land, and a quiet and vibration-free test environment can be provided.

Drawings

Fig. 1 is a schematic perspective view of a horizontal-flipping calibration test device.

Fig. 2 is a schematic perspective view of the self-leveling test stand.

Fig. 3 is a front view of the self leveling test stand.

Fig. 4 is a rear view of the self leveling test stand.

Fig. 5 is a left side view of the self leveling test stand.

Fig. 6 is a schematic perspective view of an inertial device testing tool.

Fig. 7 is a schematic perspective view of a seismic isolation foundation filled with a shock-absorbing material.

Fig. 8 is a schematic perspective view of a seismic isolation foundation not filled with a shock-absorbing material.

In the drawings: 1-self-adjusting horizontal test bench, 101-horizontal test surface, 1011-test probe, 1012-cable concentrator, 102-fixed pivot, 103-tilt sensor, 104-movable control pivot, 1041-drive motor, 105-horizontal control plate, 106-metal support frame, 2-inertia device test tool, 3-seismic isolation foundation, 301-building foundation, 302-seismic isolation pit and 303-shock absorption material.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a preferred embodiment of the present invention provides a horizontal turning calibration testing apparatus, which includes a self-leveling testing platform 1 and an inertial device testing tool 2.

In the present embodiment, as shown in fig. 2 to 5, the self-leveling test stand 1 includes a horizontal test surface 101, a fixed fulcrum 102, two tilt sensors 103, and two movable control fulcrums 104. The horizontal test surface 101 is made of a hard material such as marble or the like. The horizontal testing surface 101 is in a cuboid shape, and is used for mounting the inertia device testing tool 2 and providing a horizontal plane for the inertia device testing tool 2. Whether the horizontal test surface 101 is horizontal or not, if the horizontal test surface is not horizontal, the inclination angle of the horizontal test surface 101 is large, and the inclination angle is in any direction, in order to determine the information, two inclination sensors 103 are installed on the horizontal test surface 101, if the directions of the two inclination sensors 103 are completely consistent, the inclination angle of the horizontal test surface 101 cannot be determined comprehensively, so that the two inclination sensors 103 are arranged in the non-parallel direction, and in order to reduce the complexity of calculation, the two inclination sensors 103 can be arranged in the mutually perpendicular direction. Both tilt sensors 103 may be mounted on the top or side of the horizontal test surface 101, preferably on the top. In order to support the horizontal testing surface 101 and adjust the levelness of the horizontal testing surface 101, a fixed pivot 102 and two movable control pivots 104 are installed at the bottom of the horizontal testing surface 101. The two tilt sensors 103 are electrically connected to the two movable control pivots 104, which may be directly electrically connected or electrically connected through other devices. The supporting points and the horizontal testing surface 101 may be fixedly connected or not connected, and the horizontal testing surface 101 is placed on the three supporting points. Since three points determine a plane, the fixed pivot 102 and the two movable control pivots 104 can be theoretically disposed at any three positions which are not overlapped, but the three pivots should be disposed dispersedly in order to ensure that the horizontal testing surface 101 is stably supported, and for convenience of numerical calculation when the horizontal testing surface 101 is adjusted, the three pivots can be set at axisymmetric positions by taking a straight line where the fixed pivot 102 is located as a symmetry axis, that is, the distances from the two fixed pivots 102 to the fixed pivot 102 are equal. In addition, in order to further facilitate the numerical calculation during adjustment, the angle of the tilt sensor 103 may be adapted to be perpendicular to two connecting lines formed by the two movable control fulcrums 104 and the fixed fulcrum 102, and the two tilt sensors 103 are respectively parallel to the two connecting lines formed by the two movable control fulcrums 104 and the fixed fulcrum 102, so that the height of the movable control fulcrum 104 that needs to be raised or lowered when the horizontal testing surface 101 reaches the horizontal state can be obtained by simple trigonometric function calculation.

As shown in fig. 1, the inertial device testing tool 2 is mounted on the top surface of the horizontal testing surface 101 for mounting an inertial device. The inertial device testing tool 2 should be in a regular shape so as to ensure stability on the horizontal testing surface 101, the optimal shape of the inertial device testing tool is a cube, as shown in fig. 6, each surface of the outer-layer cube is an installation surface, one installation surface is attached to and fixedly connected with the horizontal testing surface 101 in use, each surface of the inner-layer cube is a contact plane, and geometric absolute orthogonality of six installation planes and six contact planes is fully ensured in the structure.

As shown in fig. 2, the self-leveling test bed 1 of the present embodiment utilizes the tilt sensor 103 to determine the difference between the horizontal test surface 101 and the horizontal state, and adjusts the movable control pivot 104 according to the measured tilt direction and angle, so that the horizontal test surface 101 reaches the horizontal state, thereby realizing the automatic and accurate adjustment of the self-leveling test bed 1 to the horizontal state; the two movable control fulcrums 104 and the fixed fulcrum 102 are arranged to be an isosceles right triangle, and the two inclination angle sensors 103 are respectively parallel to two connecting lines formed by the two movable control fulcrums 104 and the fixed fulcrum 102, so that the calculation process of speech data can be realized, and the horizontal adjustment efficiency can be improved.

As shown in fig. 2 to 5, in the present embodiment, preferably, the movable control fulcrum 104 is an electric telescopic rod, and the electric telescopic rod is electrically connected to the tilt sensor 103 through a horizontal control board 105. The movable fulcrum needs an electric signal to accurately control the rising and falling heights of the movable fulcrum, so that an electric telescopic rod can be selected, and parts such as a worm, a gear and the like can be adopted to transmit between the driving motor 1041 and the telescopic rod. The telescopic rod is used as a fulcrum and is in contact with the horizontal test surface 101, and the driving motor 1041 can be arranged below the horizontal test surface 101 and beside the telescopic rod. The driving motors 1041 of the two movable control fulcrums 104 are electrically connected with the horizontal control board 105, and the two tilt angle sensors 103 are also electrically connected with the horizontal control board 105, so that the height of the movable control fulcrums 104 to be adjusted can be obtained by calculating the information fed back by the tilt angle sensors 103 through the horizontal control board 105, and then the driving motors 1041 are controlled to realize the height adjustment, so that the adjustment of the levelness of the horizontal test surface 101 is completed.

As shown in fig. 2 to 5, in this embodiment, preferably, a plurality of test probes 1011 are disposed on the top surface of the horizontal test surface 101, a plurality of test contacts are disposed at positions on the inertia device test tool 2 corresponding to the test probes 1011, a cable hub 1012 corresponding to the test probes 1011 is disposed on the side surface of the horizontal test surface 101, and the test probes 1011 include two types of signal transmission probes and power supply probes, and the probes are connected to the cable hub 1012 on the side surface of the horizontal test surface 101 through cables. In the testing process, the inertia device testing tool 2 is placed stably according to the set position, namely the testing probes 1011 on the self-adjusting horizontal testing platform 1 correspond to the testing contacts on the inertia device testing tool 2 one by one and are in full contact. The testing probe 1011 can be powered by the hub on the side according to the voltage and current requirements, and meanwhile, the required testing signal is connected with the testing data acquisition terminal through the hub to obtain the testing signal. Therefore, power supply and signal connection of the tested inertial device installed on the inertial device testing tool 2 can be achieved, and the influence of a complex structure of an external cable and cable swinging on calibration is avoided.

As shown in fig. 2 to 5, in this embodiment, preferably, the self-leveling test bench 1 further includes a metal supporting frame 106, where the metal supporting frame 106 is a rectangular parallelepiped, and is fixed at the bottom of the fixed fulcrum 102 and the movable control fulcrum 104, and is used for supporting the fixed fulcrum 102, the movable control fulcrum 104, and the horizontal test surface 101. The cross beam on the top of the metal supporting frame 106 is fixedly connected with the fixed fulcrum 102 and the movable control fulcrum 104, and the driving motor 1041 and the horizontal control plate 105 of the movable control fulcrum 104 can be directly fixed on the cross beam on the top of the metal supporting frame 106. The metal supporting frame 106 is additionally arranged at the bottom of the self-adjusting horizontal test bench 1, so that the height of the horizontal test surface 101 is increased, and the test work of workers is more convenient.

In this embodiment, preferably, the horizontal overturning calibration testing apparatus further includes a seismic isolation foundation 3, as shown in fig. 7 and 8, the seismic isolation foundation 3 includes a building foundation 301, a seismic isolation pit 302 and a shock absorbing material 303. The building foundation 301 is a cuboid and is formed by pouring building concrete, the top surface of the building foundation is used for supporting and fixedly connecting the self-leveling test bench 1, and when the self-leveling test bench 1 comprises the metal supporting frame 106, the bottom of the metal supporting frame 106 is fixedly connected with the top surface of the building foundation 301; when the self-leveling test bench 1 does not comprise the metal supporting frame 106, the bottoms of the fixed supporting point 102 and the movable control supporting point 104 are respectively and fixedly connected with the building foundation 301. The building foundation 301 is fixedly connected with the metal supporting frame 106 or the fixed fulcrum 102 and the movable control fulcrum 104, and expansion bolts can be adopted. The building foundation 301 is buried in the seismic isolation pit 302, the depth of the seismic isolation pit 302 is basically equal to the height of the building foundation 301, the bottom area of the seismic isolation pit 302 is larger than that of the building foundation 301, the building foundation 301 is located at the center of the seismic isolation pit 302, a certain gap is reserved between the periphery of the building foundation 301 and the seismic isolation pit 302, and a shock absorption material 303 is filled in the gap between the inner wall of the seismic isolation pit 302 and the building foundation 301. The shock-absorbing material 303 is generally a loose structure and can be uniformly filled in the gap of the vibration-isolating pit 302 to extrude the building foundation 301 from the periphery to keep the building foundation in a stable and upright state, and meanwhile, when the vibration generated at the periphery of the vibration-isolating pit 302 is transmitted to the shock-absorbing material 303, the loose structure of the shock-absorbing material 303 can absorb the energy of the vibration, so that the vibration can not be transmitted to the building foundation 301, thereby isolating the vibration outside the building foundation 301 and providing a quiet and vibration-free environment for the self-adjusting horizontal test bench 1. Preferably, the shock absorbing material 303 may be building sand, which is easily available and has a good shock absorbing effect. For example, the height of the building foundation 301 is 2 meters, and a seismic isolation pit 302 with the depth of not less than 2 meters and the area of not less than 1 meter expanded from the leveling test bench 1 to the periphery is excavated downwards on the ground. The inside 20cm of concrete that pours along the inner wall of this shock insulation pit 302 forms building foundation 301, uses building sand backfill between building foundation 301 and the inner wall, can fully guarantee from this that the test equipment that bears on building foundation 301 does not receive the vibration interference of outside personnel walking, other industrial equipment on near ground.

The working principle is as follows:

when the horizontal overturning calibration test is carried out on the inertia device, firstly, the vibration isolation foundation 3 and the self-leveling test board 1 are sequentially installed; then, the horizontal control board 105 is used for receiving the inclination angle information fed back by the inclination angle sensor 103, and the two movable control supporting points 104 are controlled to be raised or lowered by a certain height according to the inclination angle information, so that the inclination angle between the horizontal test surface 101 and the horizontal is gradually reduced to zero, namely the horizontal test surface 101 reaches a horizontal state, and the process can be realized by the control of a technician through the horizontal control board 105 or the control of a preset program in the horizontal control board 105; then, the inertia device to be tested is placed in the inertia device testing tool 2, the inertia device testing tool 2 is placed at a specific position on the horizontal testing surface 101, the corresponding testing probe 1011 is fully contacted with the testing contact, the cable concentrator 1012 is connected with external power supply equipment and information acquisition equipment, the power supply equipment and the information acquisition equipment can supply power for the inertia device to be tested through the electrical connection between the cable concentrator, the testing probe and the testing contact, and the tested data of the inertia device to be tested is acquired, so that the calibration testing work is completed.

The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.

Claims (10)

1. A horizontal turnover calibration test device is characterized by comprising a self-leveling test bench and an inertial device test tool,

the self-leveling test bench comprises:

the horizontal test surface is used for installing the inertial device test tool and providing a horizontal plane for the inertial device test tool;

the fixed pivot is fixed at the bottom of the horizontal test surface and used for supporting the horizontal test surface;

the two tilt angle sensors are respectively fixed on the horizontal testing surface, are unparallel and are used for feeding back tilt angle information of the horizontal testing surface and the horizontal plane;

the two movable control fulcrums are mounted at the bottom of the horizontal testing surface, the tilt sensor is electrically connected with the movable control fulcrums, and the movable control fulcrums are used for rising or lowering according to tilt information fed back by the tilt sensor and adjusting the levelness of the horizontal testing surface;

the inertia device testing tool is installed on the top surface of the horizontal testing surface and used for installing an inertia device.

2. The horizontal overturning calibration test device according to claim 1, wherein the movable control fulcrum is an electric telescopic rod, and the electric telescopic rod is electrically connected with the tilt sensor through a horizontal control board.

3. The horizontal flip calibration test apparatus of claim 2,

the top surface of the horizontal test surface is provided with a plurality of test probes, and a plurality of test contacts are arranged on the inertia device test tool at positions corresponding to the test probes;

a cable concentrator corresponding to the test probe is arranged on the side surface of the horizontal test surface and is electrically connected with the test probe;

the test probe, the test contact and the cable concentrator are used for supplying power to the inertial device and transmitting test information.

4. The horizontal overturning calibration test equipment according to claim 1, wherein the self-leveling test bench further comprises a metal support frame, and the metal support frame is fixed at the bottoms of the fixed fulcrum and the movable control fulcrum and is used for supporting the fixed fulcrum, the movable control fulcrum and the horizontal test surface.

5. The horizontal overturning calibration test equipment as claimed in claim 4, further comprising a vibration isolation foundation, wherein the vibration isolation foundation comprises a building foundation, a vibration isolation pit and a shock absorption material, the bottom of the metal supporting frame is fixedly connected with the building foundation, the building foundation is buried in the vibration isolation pit, and the shock absorption material is filled between the inner wall of the vibration isolation pit and the building foundation.

6. The horizontal overturning calibration test equipment according to claim 1, further comprising a vibration isolation foundation, wherein the vibration isolation foundation comprises a building foundation, a vibration isolation pit and a shock absorption material, the bottoms of the fixed supporting point and the movable control supporting point are fixedly connected with the building foundation, the building foundation is buried in the vibration isolation pit, and the shock absorption material is filled between the inner wall of the vibration isolation pit and the building foundation.

7. The horizontal upset calibration test equipment of claim 5 or 6, wherein the shock absorbing material is construction sand.

8. The horizontal turnover calibration test equipment of claim 1, wherein the two tilt sensors are respectively parallel to two connecting lines formed by the two movable control supporting points and the fixed supporting point.

9. The horizontal turnover calibration test equipment as claimed in claim 8, wherein two connecting lines formed by the two movable control supporting points and the fixed supporting point are perpendicular to each other, and the distances between the two movable control supporting points and the fixed supporting point are equal.

10. The horizontal overturning calibration test equipment according to any one of claims 1 to 9, wherein the inertial device test fixture is square in shape.

Images