CN211977894U - Underground mine measuring device - Google Patents

Abstract

The utility model provides a mine underground measuring device, belonging to the technical field of mine measurement, comprising a total station for emitting and receiving measuring light and a reflecting unit for reflecting the measuring light; the total station comprises a telescope objective, a beam splitter prism and a photodiode for receiving distance measuring light; the reflecting unit comprises a tower ruler and a reflecting device; the tower ruler comprises a ruler body provided with scales, and the reflecting device is detachably arranged at the designated scales of the ruler body. The measuring light rays are emitted to the reflecting device through the telescope objective, reflected to the beam splitting prism through the same path by the reflecting device, and received back by the photodiode. Utilize the utility model discloses a measuring device in the pit of mine with the accurate location of sopwith staff and reflector plate, simple structure, convenient operation has further promoted the efficiency of construction.

Description

Underground mine measuring device

Technical Field

The utility model relates to a technical field is measured in the mine, more specifically relates to a measuring device in pit in mine.

Background

In the underground mine elevation measurement method, the triangulation elevation measurement is widely adopted because of the advantages of flexibility, simplicity, convenience, time saving, labor saving, no limitation of topographic relief and the like.

However, the following disadvantages exist in triangulation:

1. in the measuring process of triangulation height measurement, the height of an instrument and the height of a prism need to be measured, and the prism is erected at a control point to be measured, so that time and labor are wasted;

2. downhole ventilation can affect the accuracy of the centering of the prism mounting.

Therefore, a need exists for a mine downhole measuring device with high centering accuracy and simple operation.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the present invention is to provide a measuring device under mine to solve the problem of difficulty in erecting a prism in the process of triangulation height measurement.

The utility model provides a mine underground measuring device, which comprises a total station for emitting and receiving measuring light and a reflecting unit for reflecting the measuring light;

the total station comprises a telescope objective, a beam splitter prism and a photodiode for receiving distance measuring light; the reflecting unit comprises a tower ruler and a reflecting device; the tower ruler comprises a ruler body provided with scales, and the reflecting device is detachably arranged at the designated scales of the ruler body;

the measuring light rays are emitted to the reflecting device through the telescope objective, reflected to the beam splitting prism through the same path by the reflecting device, and received back by the photodiode.

In addition, it is preferable that the zero point of the tower ruler is set at the point of the wire to be measured.

In addition, it is preferable that the light reflecting means is a reflecting sheet or a reflecting prism.

In addition, the preferable structure is that the total station is installed on a preset position through an installation frame; be provided with the level bubble on the mounting bracket and be used for adjusting the horizontally level adjustment mechanism of total powerstation, the level bubble sets up on the top of mounting bracket, and level adjustment mechanism sets up the middle part at the mounting bracket.

In addition, it is preferable that the number of the leveling bubbles be 2.

In addition, the preferred structure is that the reflecting device is arranged on the tower ruler in a bonding and screwing mode.

According to the technical scheme provided by the utility model, the utility model provides a mine is measuring device in pit through the reflection unit that comprises sopwith staff and reflex reflector in the opposite setting of total powerstation to realize the total powerstation to the measurement of triangle elevation. The beneficial effects are as follows:

1) only the zero point of the tower ruler is required to be arranged on the lead point to be measured, and then the reflector plate is arranged at the designated scale of the tower ruler according to the measurement requirement, so that the prism is prevented from being erected at the control point to be measured, and the construction strength is reduced.

2) The structure is simple, the operation is convenient, the operation can be carried out without professional constructors, the tower ruler and the reflector plate are accurately positioned, the error caused by erecting the reflecting prism independently is greatly reduced, and the measuring precision is improved;

3) the reflector plate is combined with the tower ruler to replace the reflecting prism, so that the maintenance cost generated by the reflecting prism is reduced;

4) the positioning accuracy of the reflection unit is further improved, and the construction efficiency is further improved.

Drawings

Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:

FIG. 1 is a schematic structural diagram of a downhole measuring device for a mine according to a preferred embodiment;

FIG. 2 is a schematic structural diagram of a reflector plate of the mine downhole measurement device of the preferred embodiment;

wherein the reference numerals include: 1. a total station; 2. a tower ruler; 3. a light reflecting means; 4. and (7) mounting frames.

The same reference numbers in all figures indicate similar or corresponding features or functions.

Detailed Description

To the aforesaid problem that the prism wastes time and energy that sets up at the control point that awaits measuring that provides, the utility model provides a new mine is measuring device in pit to solve above-mentioned problem.

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

The utility model provides a mine is measuring device in pit through the reflection unit who comprises sopwith staff and reflex reflector in the opposite setting of total powerstation to realize the total powerstation to the measurement of triangle elevation. Only the zero point of the tower ruler is required to be arranged on the lead point to be measured, and then the reflector plate is arranged at the designated scale of the tower ruler according to the measurement requirement, so that the prism is prevented from being erected at the control point to be measured, and the construction strength is reduced. The basic principle of triangulation elevation measurement is to calculate the elevation difference between a measurement station and an alignment point by applying a formula of trigonometric function according to the vertical angle (or zenith distance) observed from the measurement station to the alignment point and the horizontal distance between the measurement station and the alignment point.

In order to illustrate the structure of the measuring device under the mine provided by the present invention, fig. 1-2 illustrate the structure of the measuring device under the mine as a whole. Fig. 1 shows an exemplary schematic diagram of a structure of a measuring device in a mine downhole; fig. 2 is a schematic structural diagram of a reflector plate.

As shown in fig. 1-2, a mine downhole surveying device comprises a total station 1 for emitting and receiving surveying light and a reflection unit for reflecting the surveying light; the total station 1 comprises a telescope objective, a beam splitter prism and a photodiode for receiving distance measuring light; the reflecting unit comprises a sliding staff 2 and a reflecting device 3; the tower ruler 2 comprises a ruler body provided with scales, and the reflecting device 3 is detachably arranged at the specified scales of the ruler body; the measuring light rays are emitted to the reflecting device 3 through the telescope objective, reflected to the beam splitting prism through the same path by the reflecting device 3, and received by the photodiode and returned to the zero point of the light tower ruler 2, and then arranged on the wire point to be measured. It should be noted that the measuring light is modulated infrared light emitted by a photodiode.

It should be noted that the zero point of the sliding staff 2 is set on the lead point to be measured, and the setting height of the reflector 3 is the scale of the sliding staff 2, so that the link of obtaining the setting height by subtracting the starting point scale value from the end point scale value is reduced.

In addition, the reflecting device is arranged on the tower ruler in a bonding and screw connection mode; specifically, the specific way of fixing the light reflecting device on the scale body of the tower ruler may be bonding, screwing, etc., as long as the light reflecting device is detachably mounted on the scale body, and the specific implementation way is not limited herein.

The total station 1 comprises a telescope objective lens, a focusing lens, a beam splitter prism arranged between the telescope objective lens and the focusing lens, a cross wire reticle used for angle measurement and a photodiode used for receiving distance measurement light; the measuring light rays are emitted to the reflecting device through the telescope objective lens, reflected to the beam splitting prism through the same path and received by the photodiode. Wherein, the light reflection path is an external light path system; the total station also comprises an inner light path system, wherein the light reflection path of the inner light path system is used for transmitting the modulated infrared light emitted by the photosensitive diode to the photodiode for receiving through the optical fiber in the beam splitting prism system.

The total station 1 obtains the phase difference of the measuring light in the external optical path system and the internal optical path system through the external optical path system and the internal optical path system, calculates the propagation time of the light through the phase difference, and calculates the test distance through the propagation time of the light.

It should be noted that the multifunctional telescope is realized through the total station, and the target can be aimed to be imaged on the cross-hair reticle, so that the angle measurement is realized.

In one embodiment, the light reflecting means 3 is a reflective sheet or a reflective prism. The total station 1 adopts the principle of photoelectric reflection to realize measurement; the reflecting prism has the advantages that the reflecting prism can converge the divergent light and then parallelly send out the convergent divergent light, so that the loss caused by diffuse reflection of the light on the coming and going path is reduced, and the measuring accuracy is high and faster; although the reflector plate does not have the capability of converging light rays by the prism, the total station has two modes during measurement, and the reflector plate mode has stronger light ratio and certain data correction, so that the reflector plate and the reflector prism have no great difference in precision. However, the difficulty of erecting the reflector plate is far less than that of the reflector prism. Moreover, in the process of combining with the sliding staff 2, the construction of the reflector plate is more convenient.

In a particular embodiment, the total station is mounted at a predetermined position by means of a mounting frame 4; be provided with the level bubble on mounting bracket 4 and be used for adjusting the horizontal level adjustment mechanism of total powerstation 1, the level bubble sets up on the top of mounting bracket 4, and level adjustment mechanism sets up the middle part at mounting bracket 4. Specifically speaking, be exactly that total powerstation 1 needs accurate location, in order to realize the accurate location of total powerstation, set up on the mounting bracket 4 of total powerstation and be used for adjusting the competent level bubble of total powerstation and level control mechanism, for further assurance adjustment location effect, the quantity of setting up of level bubble is 2.

Taking the measurement of the height difference between the ground point a and the point B as an example: the specific operation process is that the total station 1 is arranged at a point A, the sliding staff 2 is erected at a point B, the reflector 3 is arranged at a set scale of the sliding staff 2, the instrument height from the center of a telescope rotating shaft of the total station 1 to the ground point A is measured, a horizontal line of a telescope cross is used for aiming at a point M on the marking scale of the point B, the vertical height from the point M to the point B becomes a prism height V, and the height difference between the two points is calculated by the slant distance D and the vertical angle between the two points from the point M to the point B, which is called photoelectric distance measuring triangle height measurement.

In the specific implementation process, the working steps are briefly described as follows:

1. erecting a total station 1 at a known elevation point;

2. measuring the height of the centering level height measuring instrument;

3. erecting the zero point of the sliding staff 2 on a control point to be measured, and fixing the reflector plate 3 on the designated scale of the sliding staff 2;

4. adjusting the total station 1, adjusting the cross wire of the total station to the center of the reflector, adjusting the measuring mode of the total station 1 to the reflector mode, and measuring the height difference by using a positive and negative mirror.

According to the embodiment, the underground mine measuring device provided by the utility model only needs to set the zero point of the tower ruler on the wire point to be measured, and then the reflector plate is set at the designated scale of the tower ruler according to the measuring requirement, so that the prism is prevented from being erected at the control point to be measured, and the construction strength is reduced; the structure is simple, the operation is convenient, the operation can be carried out without professional constructors, the tower ruler and the reflector plate are accurately positioned, the error caused by erecting the reflecting prism independently is greatly reduced, and the measuring precision is improved; the reflector plate is combined with the tower ruler to replace the reflecting prism, so that the maintenance cost generated by the reflecting prism is reduced; the positioning accuracy of the reflection unit is further improved, and the construction efficiency is further improved.

The mine downhole measuring device according to the present invention has been described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the underground mine measuring device provided by the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.

Claims (6)

1. A mine underground measuring device is characterized by comprising a total station for emitting and receiving measuring light and a reflecting unit for reflecting the measuring light; wherein the content of the first and second substances,

the total station comprises a telescope objective, a beam splitter prism and a photodiode for receiving distance measuring light;

the reflecting unit comprises a sliding staff and a reflecting device; the tower ruler comprises a ruler body provided with scales, and the reflecting device is detachably arranged at the designated scales of the ruler body;

the measuring light rays are emitted to the reflecting device through the telescope objective, and are reflected to the light splitting prism through the same path by the reflecting device, and then the return light rays are received by the photodiode.

2. The mine downhole measurement device of claim 1, wherein the zero point of the sliding staff is disposed at a point of the wire to be measured.

3. The downhole mine measuring device of claim 1, wherein the light reflecting means is a reflective sheet or a reflective prism.

4. The downhole mining surveying device of claim 1, wherein the total station is mounted at a predetermined location by a mounting bracket; the total station is characterized in that a leveling bubble and a horizontal adjusting mechanism used for adjusting the level of the total station are arranged on the mounting rack, the leveling bubble is arranged at the top end of the mounting rack, and the horizontal adjusting mechanism is arranged in the middle of the mounting rack.

5. The measuring apparatus downhole in a mine according to claim 4, wherein the leveling bubble is provided in a number of 2.

6. The mine downhole measuring device of claim 2, wherein the light reflecting device is disposed on the tower ruler by means of bonding or screwing.

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