Step slope angle rapid measuring device for strip mine

Abstract

The utility model discloses a step slope angle rapid measuring device for an open-pit mine, which relates to the technical field of step blasting of open-pit mines and comprises a fixed arm, a protractor, a vertical direction determining piece, an adjusting arm, an infrared laser transmitter and an angle indicating piece. The vertical direction determining piece is arranged on the fixed arm so as to determine that the fixed arm is in a vertical state and enable the bottom edge of the protractor to be in a vertical state, and the adjusting arm is rotationally connected with the protractor and can rotate around the axis of the protractor. The infrared laser emitter is fixedly connected to the end, away from the axis of the protractor, of the adjusting arm so as to emit laser and be positioned to the step slope bottom position, the extension line of the laser penetrates through the axis of the protractor, the angle indicating piece is arranged on the adjusting arm and can indicate the angle when the adjusting arm rotates to the measuring position, the structure is simple, and use is convenient. Use is convenient, and the construction progress is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to open pit mine step blasting technical field especially relates to a kind of open pit mine step slope angle quick determination device. BACKGROUND

[0002] In open pit mining process, blasting is a crucial link, and reasonable control of hole charge directly relates to blasting quality and safety.

[0003] In open pit step blasting construction operation, hole auditing, charging is the core process, especially the front row hole, the control requirement of minimum resistance line is strict.If minimum resistance line is too small, it will produce blasting shock wave and flying stone hazards;If it is too large, it is difficult to break the rock, and it is impossible to form free surface space, which affects the blasting quality.

[0004] When actually auditing and charging in the field, due to the local irregularity of the step slope and the variability of the slope affected by production, the step slope angle changes from the previous measurement value, so that the technician cannot accurately grasp the real-time data of the step slope, and cannot determine the key technical parameters of the front row hole, such as minimum resistance line, ground resistance line and front row hole charge, etc.This ultimately affects the blasting quality and safety.

[0005] Therefore, an accurate method and device are needed to determine the real-time step slope angle of the blasting site, which is convenient for on-site technicians to quickly determine and does not affect the construction progress. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a kind of open pit mine step slope angle quick determination device to solve the problems existing in the prior art, simple structure, convenient to use, effectively guarantee construction progress.

[0007] To achieve the above object, the utility model provides the following scheme:

[0008] The utility model provides a kind of open pit mine step slope angle quick determination device, including: fixed arm, protractor, vertical direction determining piece, adjusting arm, infrared laser emitter and angle indicating piece, the protractor is fixedly connected with one side of the fixed arm, the vertical direction determining piece is set to the fixed arm to be able to confirm that the fixed arm is in vertical state and can make the bottom edge of the protractor in vertical state, the adjusting arm is rotatably connected with the protractor and can rotate around the axis of the protractor, the infrared laser emitter is fixedly connected to one end of the adjusting arm away from the axis of the protractor to be able to emit laser and be positioned to step slope bottom position, the extension line of the laser passes through the axis of the protractor, the angle indicating piece is set to the adjusting arm and can indicate the angle when the adjusting arm is rotated to the measurement position.

[0009] Preferably, the vertical direction determining member comprises a plumb line, a plumb bob, a rotating shaft and a plurality of indicating members, the rotating shaft is fixedly connected to one end of the fixed arm, the top end of the plumb line is used to be rotatably connected with the rotating shaft, the bottom end of the plumb line is fixedly connected with the plumb bob, and the connecting line of each indicating member is arranged in parallel with the bottom edge of the protractor.

[0010] Preferably, the indicating member is a clamping plate, and the plane where one side of each clamping plate is located passes through the center line of the rotating shaft and is arranged in parallel with the bottom edge of the protractor.

[0011] Preferably, a handle is further provided, and the handle is fixedly connected to the side of the fixed arm away from the protractor.

[0012] Preferably, the angle indicating member is an indicating notch, and the index edge of the indicating notch is arranged in line with the axis of the adjusting arm to indicate the angle of rotation of the adjusting arm.

[0013] Preferably, the protractor is in a semicircular structure.

[0014] The utility model discloses relative to prior art has obtained following technical effect:

[0015] The utility model discloses a kind of open-pit mine step slope angle quick determination device, this structure layout clarifies the connecting relationship and function positioning between each component.Protractor is fixedly connected with fixed arm, and it provides reference for angle measurement;Vertical direction determining member ensures that fixed arm and protractor bottom edge are in vertical state, and it provides accurate vertical reference for measurement, improves the accuracy of measurement;Adjusting arm is rotatably connected with protractor, and it is convenient for operator to adjust the direction of emitting laser according to need;Infrared laser emitter is fixedly connected with adjusting arm, and it ensures that laser emission direction can change with adjusting arm rotation and positioning is accurate;Laser extension line passes through the design of protractor axis, so that accurate association is formed between measurement angle and laser positioning;Angle indicating member intuitively gives the angle of rotation of adjusting arm, and it is convenient for reading measurement data, overall structure design is reasonable, mutually cooperate, and it is favorable for accurate, conveniently measure open-pit mine step slope angle. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0017] Fig. 1 The structure diagram of the open-pit mine step slope angle quick determination device provided by the utility model is shown.

[0018] Fig. 2 The structure schematic diagram of the open-pit mine step slope surface angle quick determination device provided by the utility model is shown in the following figure:

[0019] In the figure: 100, open-pit mine step slope surface angle quick determination device; 1, protractor; 2, angle adjusting arm; 3, infrared laser emitter; 4, plumb line; 5, fixed arm; 6, clamping plate; 7, handle; 8, plumb. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] The utility model aims at providing an open-pit mine step slope surface angle quick determination device to solve the problems in the prior art, which is simple in structure, convenient to use and can effectively ensure the construction progress.

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0023] The utility model provides a kind of open-pit mine step slope surface angle quick determination device 100, as shown in Figs. 1-2As shown, the device comprises a fixed arm 5, a protractor 1, a vertical direction determining piece, an adjusting arm, an infrared laser emitter 3 and an angle indicating piece, the protractor 1 is fixedly connected to one side of the fixed arm 5, the vertical direction determining piece is arranged on the fixed arm 5 to confirm that the fixed arm 5 is in a vertical state and to enable the bottom edge of the protractor 1 to be in a vertical state, the adjusting arm is rotationally connected to the protractor 1 and can rotate around the axis of the protractor 1, the infrared laser emitter 3 is fixedly connected to the end of the adjusting arm away from the axis of the protractor 1 to enable the laser to be emitted and positioned to the position of the step slope bottom, the extension line of the laser passes through the axis of the protractor 1, and the angle indicating piece is arranged on the adjusting arm and can indicate the angle when the adjusting arm is rotated to the measurement position. This structure clearly shows the connection relationship and functional positioning of each component. The protractor 1 is fixedly connected to the fixed arm 5, providing a reference for angle measurement; the vertical direction determining piece ensures that the fixed arm 5 and the bottom edge of the protractor 1 are in a vertical state, providing an accurate vertical reference for measurement and improving the accuracy of measurement; the adjusting arm is rotationally connected to the protractor 1, making it convenient for the operator to adjust the direction of the emitted laser as needed; the fixed connection of the infrared laser emitter 3 and the adjusting arm ensures that the direction of the emitted laser can be changed with the rotation of the adjusting arm and is accurately positioned; the design of the laser extension line passing through the axis of the protractor 1 enables accurate correlation between the measured angle and the laser positioning; the angle indicating piece directly gives the angle of the rotation of the adjusting arm, making it easy to read the measurement data. The overall structure design is reasonable, mutually coordinated, and conducive to accurate and convenient measurement of the step slope angle of the open-pit mine.

[0024] In a preferred embodiment, the vertical direction determining piece comprises a plumb line 4, a plumb bob 8, a rotating shaft and a plurality of indicating pieces, the rotating shaft is fixedly connected to one end of the fixed arm 5, the top end of the plumb line 4 is rotationally connected to the rotating shaft, the bottom end of the plumb line 4 is fixedly connected to the plumb bob 8, and the connecting lines of the indicating pieces are arranged parallel to the bottom edge of the protractor 1. The plumb line 4, the plumb bob 8 and the rotating shaft together constitute a rotatable component. The plumb line 4 naturally droops under the action of gravity of the plumb bob 8, thereby directly showing whether the fixed arm 5 is in a vertical state. The plurality of indicating pieces are arranged parallel to the bottom edge of the protractor 1, which can more accurately assist in determining whether the fixed arm 5 and the bottom edge of the protractor 1 are vertical. By observing the relative positional relationship between the plumb line 4 and the indicating pieces, a clear visual guide is provided for the operator, ensuring the vertical accuracy during measurement and further improving the measurement accuracy.

[0025] In a preferred embodiment, the indicating member is a card 6, each card 6 is arranged in a plane which passes through the center line of the rotation shaft and is parallel to the bottom edge of the protractor 1, and the arrangement of the card 6 makes it an accurate reference for judging the vertical state. The arrangement of the card 6 in the plane which passes through the center line of the rotation shaft and is parallel to the bottom edge of the protractor 1 allows the operator to accurately judge whether the fixed arm 5 and the bottom edge of the protractor 1 are vertical by observing whether the plumb line 4 is aligned with the card 6 when adjusting the device, compared with the common indicating member, the structure provides a more intuitive and more explicit vertical judgment standard, which helps to improve the accuracy of the vertical state adjustment and the reliability of the measurement.

[0026] In a preferred embodiment, a handle 7 is further included, the handle 7 is fixedly connected to the side of the fixed arm 5 away from the protractor 1, the handle 7 is ergonomically arranged and fixed to the side of the fixed arm 5 away from the protractor 1, which facilitates the operator to hold the device. When the blasting technician holds the device, the handle 7 can be stably operated, avoiding the influence of hand shaking on the measurement; at the same time, the design of this position does not interfere with the normal operation of other parts of the device, making the whole operation process more convenient and stable, and improving the controllability of the device during the measurement process.

[0027] In a preferred embodiment, the angle indicating member is an indicating gap, the index edge of the indicating gap is arranged in line with the axis of the adjusting arm to indicate the angle of rotation of the adjusting arm, and the design of the indicating gap in line with the axis of the adjusting arm provides a simple and intuitive angle indicating method for the operator. When adjusting the measurement angle of the adjusting arm, the angle value change can be directly read through the indicating gap, and the angle of rotation of the adjusting arm can be clearly understood, which simplifies the structure and facilitates the angle reading during the operation process, and improves the convenience of the measurement and the accuracy of the reading.

[0028] In a preferred embodiment, the protractor 1 is a semicircular structure, the semicircular structure of the protractor 1 can provide a sufficient angle measurement range to meet the measurement requirements of the open-pit mine step slope angle, and is more portable than the whole circular structure, saving materials and space; at the same time, the semicircular structure of the protractor 1 is more intuitive, the reading mark is simple and clear, and the operator can quickly and accurately read the angle value, which is helpful to improve the measurement efficiency.

[0029] The use process of the utility model is:

[0030] (1) The blasting technician holds the device and stands above the step near the slope, the technician stands above the step near the slope, which can conveniently observe the device and the step slope, and also ensures the safety of the technician, provides a good operation space and visual conditions for subsequent accurate measurement, and lays a foundation for smoothly completing the measurement work.

[0031] (2) one hand adjusts the device to be in a vertical state, and makes the plumb line 4 vertical and the plumb bob 8 close to the step ground position, ensures that the device is in a vertical state and the plumb line 4 is vertical and the plumb bob 8 is close to the step ground position, and establishes a vertical reference by using the principle of gravity. Such operation ensures that the protractor 1 and the entire measurement system are in an accurate vertical state, effectively reduces the measurement error caused by the inclination of the device, improves the accuracy and reliability of the measurement result, and guarantees the quality of the measurement data.

[0032] (3) the other hand opens the infrared laser emitter 3, and adjusts the angle adjusting arm 2 to position the laser point to the step slope bottom position, realizes the accurate positioning of the device to the step slope bottom by opening the infrared laser emitter 3 and adjusting the angle adjusting arm 2 to position the laser point to the step slope bottom. By using the straight line propagation characteristics of laser, the position of the step slope bottom can be accurately determined, and the irradiation direction of the laser can be flexibly adjusted by adjusting the adjusting arm, so as to adapt to the change of the angle and position of the step slope surface, and provide an accurate positioning basis for accurate measurement of the slope angle.

[0033] (4) after both hands are adjusted to be in place, the degree on the protractor 1 is recorded, and then the step slope angle is "90°-protractor 1 measured scale". The step slope angle can be obtained by simply calculating "90°-protractor 1 measured scale". The calculation method is simple and based on the reasonable design of the device structure. The accurate adjustment and setting of the components of the device in the early stage ensure the accuracy of the degree measurement of the protractor 1, so that the step slope angle obtained by this calculation method is accurate and reliable, and the purpose of measuring the slope angle is quickly and effectively realized.

[0034] (5) measurement is carried out every 3m-8m along the step trend, and records are made, and the slope trend change and the corresponding angle value of the entire step are determined comprehensively. The measurement and recording mode of multiple points along the step trend can comprehensively obtain the slope angle data at different positions of the entire step. By comprehensively analyzing these data, the trend change of the step slope can be clearly mastered, more detailed and accurate slope angle information is provided for the open-pit mine step blasting construction, which helps the technical personnel to more scientifically determine the blasting scheme, and further improves the quality and safety of the blasting operation.

[0035] The principle and implementation mode of the specific examples in the utility model are described, and the description of the above examples is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A device for rapid determination of bench face angle in surface mine, characterized in that: The utility model relates to a kind of angle measuring device, including: Fixed arm, Protractor, the one side of the fixed arm is fixedly connected with the protractor; Vertical direction determining piece, the vertical direction determining piece is set to the fixed arm to be able to confirm that the fixed arm is in vertical state and the bottom edge of the protractor can be in vertical state; Adjusting arm, the adjusting arm is rotatably connected with the protractor and can rotate around the axis of the protractor; Infrared laser emitter, the infrared laser emitter is fixedly connected to the end of the adjusting arm away from the axis of the protractor to be able to emit laser and be positioned to step slope bottom position, and the extension line of the laser passes through the axis of the protractor; And Angle indicating piece, the angle indicating piece is set to the adjusting arm and can indicate the angle when the adjusting arm is rotated to measuring position.

2. The device for rapid determination of step slope angle in surface mine according to claim 1, characterized in that: The vertical direction determining piece includes plumb line, plumb, pivot and multiple indicating pieces, the pivot is fixedly connected to one end of the fixed arm, the top end of the plumb line is used to be rotatably connected with the pivot, the bottom end of the plumb line is fixedly connected with the plumb, and the connecting line of each indicating piece is parallelly arranged with the bottom edge of the protractor.

3. The device for rapid determination of step-slope angle in surface mine according to claim 2, characterized in that: The indicating piece is card board, and the plane where the side of each card board near the protractor is located passes through the center line of the pivot, and is parallelly arranged with the bottom edge of the protractor.

4. The device for rapid determination of step-slope angle in surface mine according to claim 3, characterized in that: It further includes handle, and the handle is fixedly connected to the side of the fixed arm away from the protractor.

5. The device for rapid determination of step-slope angle in surface mine according to claim 4, characterized in that: The angle indicating piece is indicating notch, and the index edge of the indicating notch is arranged in line with the axis of the adjusting arm to be able to indicate the angle of the adjusting arm rotation.

6. The device for rapid determination of step-slope angle in surface mine according to claim 1, characterized in that: The protractor is semicircular structure.

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