CN209945368U - Inclination type static level gauge calibrating device - Google Patents
Inclination type static level gauge calibrating device Download PDFInfo
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- CN209945368U CN209945368U CN201921149661.5U CN201921149661U CN209945368U CN 209945368 U CN209945368 U CN 209945368U CN 201921149661 U CN201921149661 U CN 201921149661U CN 209945368 U CN209945368 U CN 209945368U
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Abstract
The utility model discloses an inclination formula hydrostatic level calibrating device, including work platform, vernier height chi and be used for bearing the objective table of surveyor's level floater, the vertical setting of main scale of vernier height chi is in work platform is last, the objective table pass through support piece with the vernier fixed connection of vernier height chi, and the accessible the drive of vernier is followed the main scale reciprocates. Compared with the existing calibration mode, the calibration device does not need to disassemble the angle sensor from the inclination type static level instrument when the calibration is implemented, and the actual use state of the inclination type static level instrument can be truly reflected when the calibration is implemented.
Description
Technical Field
The utility model belongs to the technical field of the hydrostatic level calibration, especially, relate to an inclination formula hydrostatic level calibrating device.
Background
Patent 201610274770.4 discloses an inclination type static level gauge, which is characterized in that a conduction system is arranged in a cavity filled with a liquid medium, the conduction system generally comprises a floating ball, a measuring rod, a limiting device and an inclination sensor, the floating ball floats in the liquid medium, one end of the measuring rod is connected with the floating ball, and the other end of the measuring rod is hinged on the limiting device and connected with the inclination sensor; the floating ball drives the measuring rod to rotate around the hinge point along with the liquid level change, the inclination angle sensor senses the change of an angle and outputs a corresponding electric signal, and the data acquisition system obtains the vertical displacement variable quantity of the measuring point according to the electric signal.
At present, the inclination type static level has two calibration modes: firstly, the angle sensor of the inclination type static level is disassembled and is calibrated independently, and the calibration mode cannot really restore the actual use state of the inclination type static level, so that certain distortion exists, and the disassembly and assembly of the angle sensor of the inclination type static level of some models have no reversibility; secondly, this approach uses a measuring block to calibrate the inclination hydrostatic level, which, although not requiring the disassembly of the angle sensor, presents two problems: 1. due to the problem of structural space of the inclination type static level, the arrangement and the taking out of the gauge block are inconvenient; 2. due to the structural problem, the contact points of the gauge block and the angle sensor are dynamically moved during calibration, the position where the gauge block is placed cannot be guaranteed to be placed at the lowest end of the floating ball of the sensor terminal, and a large error can exist during calibration. In summary, the existing calibration methods have been unable to meet the corresponding calibration requirements.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, one of the purposes of the present invention is to provide an inclination type static level calibration device with simple structure and convenient operation.
In order to solve the technical problem, the following technical scheme is adopted in the application:
the inclination type static level calibrating device comprises a working platform, a vernier height gauge and an object stage used for bearing a floating ball of a level, wherein a main ruler of the vernier height gauge is vertically arranged on the working platform, the object stage is fixedly connected with a vernier of the vernier height gauge through a supporting piece, and the object stage can be driven by the vernier to move up and down along the main ruler.
Furthermore, the support piece comprises a vertical rod and a horizontal rod, the bottom end of the vertical rod is connected with the objective table, the top end of the vertical rod is connected with the horizontal rod, the other end of the horizontal rod is fixedly connected with the vernier, and the horizontal rod is perpendicular to the main scale.
Furthermore, the upper end surface of the objective table is a horizontal plane.
Furthermore, a base is arranged at the bottom end of the main ruler.
Compared with the prior art, the utility model discloses the beneficial effect who has lies in:
1. compared with the existing calibration mode, the calibration device of the application does not need to disassemble the angle sensor from the inclination type static level instrument when the calibration is implemented, can truly reflect the actual use state of the inclination type static level instrument when the calibration is implemented, and has the advantages of simple structure and convenience in operation.
2. Compared with the existing calibration mode, the support piece of the calibration device fully considers the structural characteristics of the vernier height gauge, and is easy to install and strong in interchangeability when being connected with the vernier height gauge.
3. Compared with the existing calibration mode, the calibration device of the application also fully considers the structural characteristics of the inclination type static level, is rapid and convenient when placed into and withdrawn from the inclination type static level, is stable in the dynamic contact of the working surface of the objective table and the floating ball when used for calibration, and is accurate in positioning and matching.
4. Through calculation and experimental verification, compare with existing calibration mode, the metering characteristic of the calibrating device of this application can satisfy the demand of the calibration of the vast majority of inclination formula hydrostatic level appearance on the calibration market.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a main sectional view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 2, this embodiment inclination formula hydrostatic level calibrating device, including work platform 1, vernier height chi and be used for bearing objective table 2 of surveyor's level floater 10, the vertical setting of main scale 3 of vernier height chi is on horizontal work platform 1, can also set up base 4 between main scale 3 and work platform 1, the vertical setting of main scale 3 is on base 4, the base has certain quality, thereby when directly placing base 4 on work platform 1, can realize the vertical installation of main scale 3 and work platform 1, need not to be connected through fasteners such as screws. The object stage 2 is fixedly connected with a vernier 6 of the vernier height gauge through a support piece 5 and can move up and down along the main scale 3 under the driving of the vernier 6.
Specifically, the support member 5 is fixedly connected with the cursor 6 through a support member fixing screw 7, and the cursor 6 of the cursor height gauge and the support member 5 can be locked through the support member 5 fixing screw, so that the support member 5 can move along with the cursor 6.
In this embodiment, the static level gauge comprises a housing 8, an angle sensor 9, a floating ball 10, a connecting rod 11 and other well-known auxiliary communication facilities. The auxiliary communication facilities are not shown in fig. 1 and 2 since they are not directly related to the present invention. The floating ball 10 is fixedly connected with the connecting rod 11, and the floating ball 10 can perform circular motion around the point O as a circle center through the connecting rod 11, as shown in fig. 2.
It is conceivable that, in practical applications, the support member 5 may include a vertical rod 501 and a horizontal rod 502, the bottom end of the vertical rod 501 is connected to the object stage 2, the top end of the vertical rod 501 is connected to the horizontal rod 502, the other end of the horizontal rod 502 is fixedly connected to the cursor 6, and the horizontal rod 502 is perpendicular to the main ruler 3, that is, the support member 5 is shaped like a "7", so as to facilitate the object stage 2 to extend into the housing 8 to support the floating ball 10. To support the floating ball 10 conveniently, the upper end surface of the object stage 2 is a horizontal surface, that is, the end surface (working surface) of the floating ball 10 is a horizontal surface.
The procedure for calibrating an inclination static level with reference to the above-described calibration device is as follows:
step 1: firstly, a fixing screw of the vernier 6 and the support 5 is locked, and the objective table 2 is placed at the lower end of the floating ball 10 and the working surface of the objective table 2 is in point contact with the floating ball 10 by adjusting the vernier 6 and moving the inclination type static level. The height, width, length and thickness of the support 5 are designed according to the size of the housing 8, the float 10, the angle sensor 9, the connecting rod 11 and the clearance space between these components, so that the working surface of the object stage 2 can be placed under the float 10 before the calibration is started, the float 10 is just in point contact with the working surface of the object stage 2 (as shown in fig. 2), and the contact point is at the central position of the working surface of the object stage 2.
Step 2: according to the measuring range Xmm of the inclination type static level to be calibrated, a calibration point is set every (X/10) mm from 0mm to Xmm, and 11 calibration points are set in the measuring range including 0 point. Since the vernier height gauge is a standard of the calibration device, the reading of the height gauge is used as a standard input, and the inclination type static level is calibrated at the 11 points.
And step 3: the vernier 6 is adjusted to enable the objective table 2 to be just contacted with the bottom surface of the shell of the inclination type static level instrument, the vernier 6 of the height gauge and the vernier fixing screw 12 of the gauge body 3 of the height gauge are locked, the reading of the vernier height gauge is cleared, and meanwhile, the inclination type static level instrument is also cleared, namely, the zero positions of the inclination type static level instrument and the vernier height gauge are obtained at the moment.
And 4, step 4: moving the vernier 6 of the vernier height gauge upwards to the position where the reading is (X/10) mm, locking the vernier 6 of the height gauge and the vernier fixing screw 12 of the height gauge body, and obtaining the reading Y from the reading device of the inclination hydrostatic level1，Y1X/10mm is the absolute indication error of the hydrostatic level of inclination at the first calibration point.
And 6, after the 11 point calibration points are finished, calibrating the positive stroke in one period. And (3) taking the measuring range of the inclination type static level as a starting point Xmm, and sequentially adjusting the vernier 6 downwards to a zero point to be calibrated in a reverse stroke mode. The forward and reverse strokes constitute a complete cycle of calibration. And according to the calibration specification, sequentially completing calibration of corresponding cycle number according to the method.
And 7, after the calibration of all the periods is finished, adjusting the vernier 6, moving the inclination type static level, moving the support 5 and the objective table out of the shell of the inclination type static level, and finishing the calibration.
The above examples are merely illustrative of the present invention clearly and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (4)
1. Inclination formula hydrostatic level calibrating device, its characterized in that: the device comprises a working platform, a vernier height gauge and an objective table used for bearing a floating ball of a level gauge, wherein a main ruler of the vernier height gauge is vertically arranged on the working platform, the objective table is fixedly connected with a vernier of the vernier height gauge through a supporting piece, and the main ruler can be driven by the vernier to move up and down.
2. The calibration device of claim 1, wherein: the support piece comprises a vertical rod and a horizontal rod, the bottom end of the vertical rod is connected with the objective table, the top end of the vertical rod is connected with the horizontal rod, the other end of the horizontal rod is fixedly connected with the vernier, and the horizontal rod is perpendicular to the main scale.
3. The calibration device of claim 1, wherein: the upper end surface of the objective table is a horizontal plane.
4. The calibration device of claim 1, wherein: the bottom of main scale is equipped with the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921149661.5U CN209945368U (en) | 2019-07-22 | 2019-07-22 | Inclination type static level gauge calibrating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921149661.5U CN209945368U (en) | 2019-07-22 | 2019-07-22 | Inclination type static level gauge calibrating device |
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| CN209945368U true CN209945368U (en) | 2020-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285836A (en) * | 2019-07-22 | 2019-09-27 | 湖南省计量检测研究院 | Inclination angle type hydrostatic level calibrating installation and calibration method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285836A (en) * | 2019-07-22 | 2019-09-27 | 湖南省计量检测研究院 | Inclination angle type hydrostatic level calibrating installation and calibration method |
| CN110285836B (en) * | 2019-07-22 | 2023-11-03 | 湖南省计量检测研究院 | Inclination angle type hydrostatic level calibrating device and calibrating method |
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