Automatic test tool for deviation sensor for coal mine

Abstract

The invention relates to the technical field of tools, in particular to a coal mine deviation sensor automatic test tool which comprises a base. The adjustable clamping assembly is arranged on the base and used for clamping the deviation sensor; the angle detection assembly is used for detecting the angle of a probe rod of the deviation sensor; the contact resistance measuring assembly is used for measuring the contact resistance of the deviation sensor; and the torque measuring assembly is used for measuring the action force and the reset force of the feeler lever of the deviation sensor under the action of the pulling force. According to the automatic test tool for the deviation sensor for the coal mine, the deviation sensor is stably fixed through the adjustable clamping assembly, the angle of a probe rod of the deviation sensor is detected through the angle detection assembly, and the contact resistance of the deviation sensor is measured through the contact resistance measurement assembly; the torque measuring assembly is used for measuring the action force and the reset force of the feeler lever of the deviation sensor under the action of the pulling force, so that accurate fixing and accurate measurement of the deviation sensor are achieved, and the measurement accuracy and the measurement efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of tooling, and in particular to an automatic testing tooling for a deviation sensor used in a coal mine. Background Art

[0002] The deviation sensor is one of the important sensors along the belt of the coal mine conveyor. It is mainly used to detect the running position of the belt on the belt frame. When the belt deviates, the deviation sensor triggers action and sends out an alarm signal to control the belt conveyor to slow down and stop to correct the deviation. After the deviation is corrected, the deviation sensor releases the alarm and the belt conveyor can run normally.

[0003] The existing testing center uses manual visual inspection to select the pulling point, uses a protractor to measure the action angle, and uses a dynamometer to measure the action force and reset force when testing the deviation sensor. Since all of these are manual operations, there are the following problems:

[0004] 1. Inaccurate measurement of action angle: When using a protractor to measure, it is impossible to accurately locate the zero point, and it relies on visual inspection, resulting in large errors.

[0005] 2. The positioning of the pulling point is not accurate: The position of the pulling point is not fixed during each test, which affects the consistency of the test results.

[0006] 3. The sensor is not fixed stably: two people are required to operate at the same time, one to fix the sensor and the other to apply the action force. The operation is cumbersome and unstable. Summary of the invention

[0007] The technical problem to be solved by the present invention is: in order to solve the technical problems in the prior art, the present invention provides an automatic testing tool for a deviation sensor for a coal mine.

[0008] The technical solution adopted by the present invention to solve its technical problems is: an automatic testing tool for a deviation sensor for a coal mine, comprising a base; an adjustable clamping assembly, which is arranged on the base and is used to clamp the deviation sensor; an angle detection assembly, which is used to detect the angle of a probe rod of the deviation sensor; a contact resistance measurement assembly, which is used to measure the contact resistance of the deviation sensor; and a torque measurement assembly, which is used to measure the action force and reset force of the probe rod of the deviation sensor under the action of tension.

[0009] The present invention discloses an automatic testing tool for a deviation sensor for coal mines, which stably fixes the deviation sensor through an adjustable clamping component, detects the angle of a probe rod of the deviation sensor through an angle detection component, measures the contact resistance of the deviation sensor through a contact resistance measurement component, and measures the action force and reset force of the probe rod of the deviation sensor under the action of tension through a torque measurement component, thereby achieving precise fixation and precise measurement of the deviation sensor, thereby improving measurement accuracy and efficiency.

[0010] Furthermore, the adjustable clamping assembly includes a driving member and two movable clamping blocks, the driving member has two movable ends, each movable clamping block is respectively connected to a movable end of the driving member, each of the movable clamping blocks is connected to a soft clamping block, and the deviation sensor is placed between the two soft clamping blocks and clamped by the two soft clamping blocks.

[0011] Through the above technical scheme, the mobile clamping block can ensure the stable clamping of the deviation sensor, and the soft clamping block can reduce the possibility of the deviation sensor being damaged by clamping. Through the cooperation between the mobile clamping block and the soft clamping block, the deviation sensor can be stably fixed without damaging the deviation sensor.

[0012] Furthermore, the driving member includes a screw rod, which is rotatably connected to the base, and the screw rod is threadedly connected to two movable clamping blocks, and the threads of the two movable clamping blocks have opposite rotation directions.

[0013] Through the above technical solution, the two movable clamping blocks are driven to move relative to or away from each other by the rotation of the screw rod, thereby realizing automatic clamping or loosening of the deviation sensor.

[0014] Furthermore, the angle measurement assembly includes a detection board, a photosensor and a surface light source. The detection board is connected to the base. The photosensor is installed on the detection board and is located below the probe rod of the deviation sensor. The surface light source is arranged above the probe rod of the deviation sensor.

[0015] Through the above technical solution, the probe rod of the deviation sensor will block the light from the surface light source, causing the light intensity of the part of the photosensor located below the probe rod of the deviation sensor to be weakened, and the blocked part will receive a weaker light signal. The coordinate position of the probe rod of the deviation sensor is determined through the position recognition algorithm, thereby realizing the measurement of the angle of the probe rod of the deviation sensor.

[0016] Furthermore, an angle scale is provided on the detection plate.

[0017] Through the above technical solution, the probe rod of the deviation sensor is measured through the angle scale, and then the angle measured by the photosensitive sensor can be mutually verified to further improve the measurement accuracy.

[0018] Furthermore, the contact resistance measurement component includes a controller, which is provided with two contact resistance test interfaces, and the two contact resistance test interfaces are used to connect to the switch output nodes of the running deviation sensor to inject a calibration current into the running deviation sensor and display the measured value on the controller.

[0019] Through the above technical solution, a calibration current is injected into the running deviation sensor through the contact resistance test interface, thereby realizing the measurement of the contact resistance of the running deviation sensor.

[0020] Furthermore, the torque measurement assembly includes a motor, a tension rod, a torque sensor and a connecting piece, the motor is connected to a base, the output end of the motor is connected to the torque sensor, the tension rod is connected to the measuring end of the torque sensor, one end of the connecting piece is connected to the tension rod, and the other end is connected to the probe rod of the deviation sensor.

[0021] Through the above technical solution, the motor drives the tension rod to pull the probe rod of the deviation sensor, and then the torque sensor is used to measure the action force and reset force of the probe rod of the deviation sensor under the action of the tension.

[0022] Furthermore, the connecting member is a tension rope loop, one end of which is connected to the tension rod, and the other end is sleeved on the probe rod of the deviation sensor.

[0023] Through the above technical solution, the tension rod and the probe rod of the deviation sensor can be quickly connected through the tension rope loop.

[0024] Furthermore, a tension mark point is provided on the base, and the tension mark point is located below the tension rod.

[0025] Through the above technical solution, the tension mark point is used to facilitate the positioning of each tension position, ensuring that the action position is consistent during each test and improving the accuracy of the measurement.

[0026] Furthermore, the base is provided with a waist-shaped hole, and two waist-shaped holes are arranged opposite to each other along the length direction of the base.

[0027] The beneficial effects of the present invention are:

[0028] 1. The deviation sensor is stably fixed by an adjustable clamping component, the angle of the probe rod of the deviation sensor is detected by the angle detection component, the contact resistance of the deviation sensor is measured by the contact resistance measurement component, and the action force and reset force of the probe rod of the deviation sensor under the action of tension are measured by the torque measurement component, thereby achieving accurate fixation and accurate measurement of the deviation sensor to improve measurement accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Figure 1 The present invention is a schematic diagram of the overall structure of an automatic testing tool for a deviation sensor for a coal mine.

[0031] Figure 2 It is a schematic diagram of removing the deviation sensor in the present invention.

[0032] In the figure: 1. base; 11. waist-shaped hole; 12. mounting plate; 13. cover plate; 2. motor; 21. screw rod; 22. movable clamp; 23. soft clamp; 3. detection plate; 31. angle scale; 4. tension rod; 41. torque sensor; 42. tension rope loop; 43. tension mark point; 5. controller; 51. contact resistance test interface; 52. display screen; 6. deviation sensor; 61. probe rod. DETAILED DESCRIPTION

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The invention discloses an automatic testing tool for a deviation sensor for a coal mine.

[0036] Reference Figure 1 and Figure 2An automatic test tool for a deviation sensor for a coal mine includes a base 1, on which a waist-shaped hole 11 is provided. Two waist-shaped holes 11 are provided opposite to each other along the length direction of the base 1, and the waist-shaped holes 11 are opened along the width direction of the base 1, so that the base 1 can be installed at a corresponding position and the position of the base 1 can be adjusted along the width direction of the base 1. An adjustable clamping component, an angle detection component, a contact resistance measurement component and a torque measurement component are provided on the base 1. The adjustable clamping component is used to clamp the deviation sensor 6, the angle detection component is used to detect the angle of the probe rod 61 of the deviation sensor 6, the contact resistance measurement component is used to measure the contact resistance of the deviation sensor 6, and the torque measurement component is used to measure the action force and reset force of the probe rod 61 of the deviation sensor 6 under the action of tension.

[0037] During operation, the deviation sensor 6 is stably fixed by an adjustable clamping assembly, the angle of the probe rod 61 of the deviation sensor 6 is detected by the angle detection assembly, the contact resistance of the deviation sensor 6 is measured by the contact resistance measurement assembly, and the action force and reset force of the probe rod 61 of the deviation sensor 6 under the action of tension are measured by the torque measurement assembly, thereby achieving precise fixation and precise measurement of the deviation sensor 6 to improve measurement accuracy and efficiency.

[0038] Specifically, the adjustable clamping assembly includes a driving member and two movable clamping blocks 22. The driving member has two movable ends. Each movable clamping block 22 is respectively connected to a movable end of the driving member. Each movable clamping block 22 is connected to a soft clamping block 23. The deviation sensor 6 is placed between the two soft clamping blocks 23 and clamped by the two soft clamping blocks 23.

[0039] More specifically, the driving member includes a screw rod 21, a mounting plate 12 is fixedly connected to the base 1, the screw rod 21 is rotatably connected to the mounting plate 12, and one end of the screw rod 21 is coaxially connected to a handle to drive the screw rod to rotate. The screw rod 21 is threadedly connected to the two movable clamps, and the threads of the two movable clamps are in opposite directions, so that when the screw rod 21 rotates, it can drive the two movable clamps to move relative to or away from each other, thereby realizing automatic clamping or loosening of the deviation sensor 6. The screw rod 21 adopts a high-precision electric forward and reverse wire bidirectional slide module to ensure the clamping accuracy. A cover plate 13 is also connected to the mounting plate 12 to protect the screw rod 21.

[0040] The movable clamp block 22 is made of metal, and the soft clamp block 23 is made of rubber. The movable clamp block 22 can ensure stable clamping of the deviation sensor 6, and the soft clamp block 23 can reduce the possibility of the deviation sensor 6 being damaged by clamping. Through the cooperation of the movable clamp block 22 and the soft clamp block 23, the deviation sensor 6 can be stably fixed without damaging the deviation sensor 6.

[0041] Specifically, the angle measurement assembly includes a detection board 3, a photosensor and a surface light source. The detection board 3 is connected to the base 1. The photosensor is mounted on the detection board 3 and is located below the probe rod 61 of the deviation sensor 6. The surface light source is arranged above the probe rod 61 of the deviation sensor 6. The photosensor can be a photodiode or a phototransistor, etc. The photosensor has a plurality of photosensors that are evenly arranged on the detection board 3. During detection, the probe rod 61 of the deviation sensor 6 will block the light of the surface light source, resulting in a weakening of the light intensity of the part of the photosensor located below the probe rod 61 of the deviation sensor 6. The photosensors of the blocked part will receive a weaker light signal. The coordinate position of the probe rod 61 of the deviation sensor 6 is determined by a position recognition algorithm, thereby realizing the measurement of the angle of the probe rod 61 of the deviation sensor 6.

[0042] It should be noted that an angle scale 31 is provided on the detection plate 3, and the angle scale 31 can assist the operator to measure the probe rod 61 of the deviation sensor 6, and then can verify the angle measured by the photosensitive sensor, thereby further improving the measurement accuracy.

[0043] Specifically, the torque measurement assembly includes a motor 2, a tension rod 4, a torque sensor 41 and a connecting piece. The motor 2 is fixedly connected to the base 1, the torque sensor 41 is installed on the output end of the motor 2, and the tension rod 4 is fixedly connected to the measuring end of the torque sensor 41. One end of the connecting piece is connected to the torque sensor 41, and the other end is connected to the probe rod 61 of the deviation sensor 6. The tension rod 4 is driven by the motor 2 to pull the probe rod 61 of the deviation sensor 6, and then the action force and reset force of the probe rod 61 of the deviation sensor 6 under the action of tension are measured by the torque sensor 41. The output end of the motor 2 is arranged in the vertical direction so as to drive the tension rod 4 to rotate in the direction away from the deviation sensor 6.

[0044] More specifically, the connecting member is a tension rope loop 42, one end of which is connected to the tension rod 4, and the other end is sleeved on the probe rod 61 of the deviation sensor 6. The tension rope loop 42 facilitates the quick connection between the tension rod 4 and the probe rod 61 of the deviation sensor 6. A tension mark point 43 is provided on the base 1, and the tension mark point 43 is located below the tension rod 4. The tension mark point 43 facilitates the positioning of each tension position, ensures that the action position is consistent during each test, and improves the accuracy of the measurement.

[0045] Specifically, the contact resistance measurement component includes a controller 5, on which two contact resistance test interfaces 51 are provided. The two contact resistance test interfaces 51 are used to connect with the switch output node of the deviation sensor 6 to inject a calibration current into the deviation sensor 6 and display the measured value on the controller 5. The calibration current is injected into the deviation sensor 6 through the contact resistance test interface 51, thereby realizing the measurement of the contact resistance of the deviation sensor 6. The controller 5 is electrically connected to the motor 2, the photosensitive sensor and the torque sensor 41. The controller 5 is convenient for sending a signal to the motor 2 to control the clamping and release of the deviation sensor 6. When measuring the angle of the deviation sensor 6, the photosensitive sensor transmits the position coordinate information to the controller 5, and the controller 5 calculates the angle data through the coordinate position information of the probe rod 61 of the deviation sensor 6. The torque sensor 41 also transmits the measured tension data to the controller 5. The controller 5 has a display screen 52, which can display the contact resistance of the deviation sensor 6, the angle of the probe rod 61, and the action force and reset force of the probe rod 61 under the action of the tension, and is convenient for the operator to read. At the same time, the storage module inside the controller 5 can automatically store the above information for subsequent retrieval.

[0046] Working principle: Through the high-precision electric forward and reverse wire bidirectional slide module and torque sensor 41, the tension value and the torque are accurately measured to improve the accuracy of the test results. Through the photosensitive sensor, the position coordinate information of the probe rod 61 of the deviation sensor 6 on the detection plate 3 can be accurately measured, so as to be converted into accurate angle information.

[0047] The motor 2 works in conjunction with the controller 5 to achieve automatic measurement of the probe 61 of the deviation sensor 6, reducing manual operation, reducing the difficulty of operation, and improving test efficiency. The tension mark point 43 ensures that the tension position of each test is consistent, thereby improving the consistency of the test results. The controller 5 is provided with a display screen 52, which is convenient for operators to set test parameters, view test results, and export data.

[0048] By introducing high-precision sensors, adjustable clamping components and controllers 5, the problems existing in the existing test methods in the deviation sensor 6 test are solved, and the accuracy and efficiency of the test are greatly improved. On the basis of meeting the requirements of industry standards, the test personnel are freed from the cumbersome test procedures and recording processes. At the same time, it can also better standardize and unify the inspection work of this center on deviation products for coal mines, which is not affected by the subjective influence of the inspectors.

[0049] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic testing tool for a deviation sensor for a coal mine, characterized in that: include Base (1); An adjustable clamping assembly is arranged on the base (1) and is used to clamp the deviation sensor (6); An angle detection component, used to detect the angle of a probe rod (61) of a deviation sensor (6); A contact resistance measuring component, used for measuring the contact resistance of the deviation sensor (6); The torque measuring assembly is used to measure the action force and the reset force of a probe rod (61) of a deviation sensor (6) under the action of a tensile force.

2. The automatic testing tool for the deviation sensor for coal mine according to claim 1 is characterized in that: The adjustable clamping assembly comprises a driving member and two movable clamping blocks (22), wherein the driving member has two movable ends, each movable clamping block (22) is respectively connected to one movable end of the driving member, each movable clamping block (22) is connected to a soft clamping block (23), and the deviation sensor (6) is placed between the two soft clamping blocks (23) and clamped by the two soft clamping blocks (23).

3. The automatic testing tool for the deviation sensor for coal mine according to claim 2 is characterized in that: The driving member comprises a screw rod (21), the screw rod (21) is rotatably connected to the base (1), the screw rod (21) is threadedly connected to two movable clamping blocks, and the threads of the two movable clamping blocks have opposite rotation directions.

4. The automatic testing tool for a deviation sensor for coal mine according to claim 1 is characterized in that: The angle measurement assembly comprises a detection plate (3), a photosensor and a surface light source, the detection plate (3) being connected to a base (1), the photosensor being mounted on the detection plate (3) and being located below a probe rod (61) of a deviation sensor (6), and the surface light source being arranged above the probe rod (61) of the deviation sensor (6).

5. The automatic testing tool for the deviation sensor for coal mine according to claim 4, characterized in that: The detection plate (3) is provided with an angle scale (31).

6. The automatic testing tool for a deviation sensor for a coal mine as claimed in claim 1, characterized in that: The contact resistance measurement component comprises a controller (5), and the controller (5) is provided with two contact resistance test interfaces (51), and the two contact resistance test interfaces (51) are used to connect to the switch output nodes of the running deviation sensor (6) so as to inject a calibration current into the running deviation sensor (6) and display the measured value on the controller (5).

7. The automatic testing tool for a deviation sensor for a coal mine as claimed in claim 1, characterized in that: The torque measurement assembly comprises a motor (2), a tension rod (4), a torque sensor (41) and a connecting piece, wherein the motor (2) is connected to a base (1), an output end of the motor (2) is connected to the torque sensor (41), the tension rod (4) is connected to a measuring end of the torque sensor (41), one end of the connecting piece is connected to the tension rod (4), and the other end is connected to a probe rod (61) of a deviation sensor (6).

8. The automatic testing tool for the deviation sensor for coal mine according to claim 7, characterized in that: The connecting piece is a tension rope sleeve (42), one end of which is connected to the tension rod (4), and the other end is sleeved on the probe rod (61) of the deviation sensor (6).

9. The automatic testing tool for a deviation sensor for a coal mine as claimed in claim 7, characterized in that: The base (1) is provided with a tension mark point (43), and the tension mark point (43) is located below the tension rod (4).

10. The automatic testing tool for a deviation sensor for coal mines according to claim 1, characterized in that: The base (1) is provided with a waist-shaped hole (11), and two waist-shaped holes (11) are arranged opposite to each other along the length direction of the base (1).

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