Sensor speed measurement tool

Abstract

The utility model relates to the technical field of speed measurement tools, in particular to a sensor speed measurement tool, which comprises a mounting frame mounted on the outer side of a conveying platform. A positioning assembly is arranged between the mounting frame and the conveying platform, a bearing plate used for bearing a sensor is fixedly mounted at the upper end of the mounting frame, a locking assembly used for limiting the vertical position of the sensor is connected to the end face of the bearing plate, the sensor is obliquely arranged above the conveying platform, and the sensor is fixedly mounted on the bearing plate. According to the utility model, through the design of the mounting rack and the bearing plate, the sensor to be detected can be conveniently mounted and supported, and meanwhile, through the design of the pressing assembly and the locking assembly, the sensor is subjected to front-back and up-down limiting locking, so that the position stability of the sensor during detection is ensured; meanwhile, the sensor is obliquely arranged above the conveying platform, so that when the conveying belt of the conveying platform rotates, most tangential force of the detection wheel during rotation can be effectively counteracted.

Description

Technical Field

[0001] This utility model relates to the field of speed measurement fixture technology, and in particular to a sensor speed measurement fixture. Background Technology

[0002] In mine safety production, belt conveyors play a crucial role, and accurate monitoring of their operating speed is essential. Therefore, intrinsically safe speed sensors are widely used in underground belt conveyor speed measurement scenarios. These sensors are typically mounted on the belt conveyor frame, and their basic structure includes a frame and a detection wheel. The speed of the belt is measured by the contact between the detection wheel and the lower belt.

[0003] However, performance testing of these sensors is an essential step in the manufacturing process. Current mainstream testing methods involve fixing the sensor in a bracket, then rotating the detection wheel via a conveyor belt, and judging the sensor's qualification based on its response. However, existing testing brackets mostly use bolts to fasten the sensors, resulting in a cumbersome, time-consuming, and inefficient disassembly and assembly process. Secondly, the bracket structure typically only provides horizontal support for the sensor, causing the sensor's detection wheel to be in perpendicular contact with the simulated conveyor belt. This generates significant tangential friction between the detection wheel and the conveyor belt, increasing wear on both.

[0004] Based on this, in order to further optimize the detection convenience and reliability of existing intrinsically safe speed sensors, we propose a sensor speed measurement fixture. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a sensor speed measuring fixture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a sensor speed measurement fixture, including:

[0008] Mounting bracket installed on the outside of the conveyor platform;

[0009] A positioning component is provided between the mounting frame and the conveying platform. A support plate for carrying the sensor is fixedly installed on the upper end of the mounting frame. A locking component for limiting the vertical position of the sensor is connected to the end face of the support plate. The sensor is tilted above the conveying platform.

[0010] Furthermore, the mounting frame includes two side frames located on both sides of the conveying platform. The upper ends of the side frames are inclined, and a mounting plate spanning above the conveying platform is fixedly connected between the tops of the two side frames. The support plate is fixed to the end face of the mounting plate.

[0011] Furthermore, adjustable feet are installed at the bottom of the side frame;

[0012] The support plate has a U-shaped structure, and the center line of its open side is perpendicular to the upper plane of the side frame, so that the sensor is configured to be tilted.

[0013] Furthermore, it also includes two clamping assemblies mounted on the mounting plate, the clamping assemblies being used to clamp the front end of the sensor.

[0014] Furthermore, the positioning component and the clamping component have the same structure;

[0015] The clamping assembly includes a base and a pressure rod pinned to the base, with a pressure head provided at one end of the pressure rod;

[0016] A drive rod and a connecting rod are rotatably connected to the base, and the other end of the connecting rod is pinned to the middle of the drive rod.

[0017] Furthermore, a locking hook rod is pinned to the middle of the drive rod, and a locking protrusion is formed on the side of the base to engage with the locking hook rod.

[0018] Furthermore, a groove is provided at the tail end of the pressure rod, and a screw is slidably connected inside the groove. U-shaped pads and locking nuts are provided on both sides of the screw on the pressure rod. The locking nuts are threadedly connected to the screw, and the pressure head is fixed at the bottom end of the screw.

[0019] Furthermore, the locking assembly includes a locking rod that passes through the support plate and the sensor frame, and the end of the locking rod has a stop portion that stops at the front side of the sensor frame.

[0020] The locking rod has a spring plug embedded at its tail end, and the telescopic end of the spring plug is engaged with the rear side of the support plate.

[0021] The sensor speed measuring fixture proposed in this utility model has the following advantages: the design of the mounting bracket and support plate enables convenient installation and support of the sensor under test. At the same time, the design of the clamping component and locking component is used to lock the sensor in front and behind and in the upper and lower limits to ensure the positional stability of the sensor during detection. Furthermore, by setting the sensor at an angle above the conveyor platform, when the conveyor belt of the platform rotates, most of the tangential force of the detection wheel during rotation can be effectively offset, thereby improving the detection stability of the sensor. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is the front view of the present invention;

[0024] Figure 3 This is a top view of the present invention;

[0025] Figure 4 This is a diagram showing the state of the mounting bracket and sensor when they are separated.

[0026] Figure 5 This is a schematic diagram of the clamping assembly structure of this utility model.

[0027] Figure 6 This is a schematic diagram of the locking component structure of this utility model.

[0028] In the diagram: 1. Conveying platform; 2. Mounting frame; 21. Side frame; 22. Mounting plate; 23. Adjustable feet; 3. Positioning assembly; 4. Sensor; 5. Support plate; 6. Locking assembly; 61. Locking rod; 62. Stop; 63. Spring plug; 7. Pressing assembly; 71. Base; 72. Pressure rod; 73. Pressure head; 74. Drive rod; 75. Connecting rod; 76. Locking hook rod; 77. Loop; 78. Slide groove; 79. Screw; 710. U-shaped pad; 711. Locking nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figure 1-6 As one embodiment of this utility model, a sensor speed measuring fixture is disclosed. Specifically, the sensor described in this embodiment is an intrinsically safe speed sensor. The fixture includes a mounting frame 2 installed on the outside of the conveyor platform 1. Of course, the conveyor platform 1 described in this embodiment can be set as a belt conveyor. Its specific structure is a conventional technical means for those skilled in the art, and will not be described in detail here.

[0031] A positioning component 3 is provided between the mounting frame 2 and the conveying platform 1. A support plate 5 for carrying the sensor 4 is fixedly installed on the upper end of the mounting frame 2. A locking component 6 for limiting the vertical position of the sensor 4 is connected to the end face of the support plate 5. The sensor 4 is tilted above the conveying platform 1.

[0032] In other words, by setting the sensor 4 at an angle above the conveyor platform 1 in this invention, when the conveyor belt of the conveyor platform 1 rotates, it can effectively offset most of the tangential force of the detection wheel during rotation, thereby improving the detection stability of the sensor 4.

[0033] In actual operation, sensor 4 is fixed on support plate 5, and the conveyor belt of conveyor platform 1 starts to rotate. The detection wheel of sensor 4 contacts the surface of the conveyor belt, while sensor 4 is connected to the detection equipment. When the detection wheel rotates, it can be determined whether sensor 4 is working normally, thus completing the detection process.

[0034] In some embodiments, the mounting frame 2 of this utility model includes two side frames 21 located on both sides of the conveying platform 1. The upper ends of the side frames 21 are inclined, and the inclination angle of the upper ends of the side frames 21 is the same as the inclination angle of the sensor 4. In other embodiments, the inclination angle of the sensor 4 and the inclination angle of the upper ends of the side frames 21 can be designed to be different. The inclination angle can be designed by those skilled in the art according to actual needs, and no specific limitation is made here. The tops of the two side frames 21 are fixedly connected to the mounting plate 22 spanning above the conveying platform 1, and the support plate 5 is fixed to the end face of the mounting plate 22.

[0035] Specifically, in this embodiment, the bottom of the side frame 21 is equipped with an adjustable foot 23, which is threadedly connected to the side frame 21 to adjust the height of the side frame 21 so as to ensure that the detection wheel of the sensor 4 can stably contact the surface of the conveyor belt of the conveyor platform 1.

[0036] The support plate 5 has a U-shaped structure, and the center line of its opening side is perpendicular to the upper plane of the side frame 21, so that the sensor 4 is configured to be tilted.

[0037] Furthermore, the mounting plate 22 described in this embodiment is configured as an L-shaped structure. Thus, when the support plate 5 is fixed on one side of the mounting plate 22, it can form a design perpendicular to the upper surface of the side frame 21. The support plate 5 with a U-shaped structure is used to facilitate the placement of the sensor 4. With the help of the U-shaped frame characteristics of the intrinsically safe sensor, the frame of the sensor 4 can be directly placed into the support plate 5 during installation, thereby completing the support of the sensor 4.

[0038] Of course, in order to press the front side of the sensor 4, this embodiment also includes two pressing components 7 installed on the mounting plate 22, which are used to press the front end of the sensor 4.

[0039] Specifically, in this embodiment, the positioning component 3 and the clamping component 7 have the same structure;

[0040] The clamping assembly 7 includes a base 71 and a pressure rod 72 pinned to the base 71, and a pressure head 73 is provided at one end of the pressure rod 72.

[0041] A drive rod 74 and a connecting rod 75 are rotatably connected to the base 71, and the other end of the connecting rod 75 is pinned to the middle of the drive rod 74.

[0042] Based on the above embodiments, in this embodiment, the middle part of the drive rod 74 is also pinned to a locking hook rod 76, and the side of the base 71 is formed with a locking protrusion 77 that is adapted to engage with the locking hook rod 76.

[0043] In this embodiment, when it is necessary to press the sensor 4 into the inside of the support plate 5, the drive rod 74 can be rotated, and the entire pressure rod 72 can be rotated by means of the support of the connecting rod 75 until the pressure head 73 presses against the outside of the sensor 4 frame. Of course, the pressure head 73 described in this embodiment can be set as a rubber head.

[0044] After the clamping is completed, the locking hook rod 76 can be further rotated to engage with the locking protrusion 77, thereby locking the position of the entire drive rod 74.

[0045] Similarly, when it is necessary to fix the entire mounting frame 2 and the conveying platform 1, the same operation is used to operate the positioning component 3 on the side of the mounting frame 2 until the pressure head 73 on the positioning component 3 is pressed against the outside of the frame of the conveying platform 1, so as to improve the connection stability of the tooling and the conveying platform 1.

[0046] Furthermore, in this embodiment, a groove 78 is provided at the tail end of the pressure rod 72, and a screw 79 is slidably connected inside the groove 78. U-shaped pads 710 and locking nuts 711 are provided on both sides of the screw 79 on the pressure rod 72. The locking nuts 711 and the screw 79 are threadedly connected, and the pressure head 73 is fixed at the bottom end of the screw 79.

[0047] In this embodiment, by using two locking nuts 711 and the U-shaped pad 710, the lateral position of the screw 79 inside the slide groove 78 can be adjusted, and the extension length of the pressure head 73 can also be adjusted to optimize the applicability of the positioning component 3 and the clamping component 7.

[0048] In some embodiments, the locking assembly 6 includes a locking rod 61 that passes through the support plate 5 and the sensor 4 frame. The end of the locking rod 61 has a stop portion 62 that stops at the front side of the sensor 4 frame. Of course, in this embodiment, the stop portion 62 can be set as a nut, which is used to thread it to the locking rod 61, so that the effective locking length of the entire locking rod 61 can be adjusted. In addition, in this embodiment, the outer diameter of the locking rod 61 should be adapted to the diameter of the mounting hole of the sensor 4 frame to ensure the positioning stability of the frame.

[0049] The locking rod 61 has a spring plug 63 embedded at its tail end. The telescopic end of the spring plug 63 is locked to the rear side of the support plate 5. The spring plug 63 includes a housing, a spring, and a limiting post. Its specific structure will not be described in detail. It is stopped at the front side of the sensor 4 frame by the stop part 62, and at the same time stopped at the rear side of the support plate 5 by the spring plug 63, so as to realize the upper and lower position limiting and locking of the sensor 4.

[0050] In summary, the design of the mounting bracket 2 and the support plate 5 in this utility model enables convenient installation and support of the sensor 4 to be tested. At the same time, the design of the clamping component 7 and the locking component 6 is used to lock the sensor 4 in front, behind and behind and up and down to ensure the positional stability of the sensor 4 during detection. Furthermore, by setting the sensor 4 at an angle above the conveyor platform 1, when the conveyor belt of the conveyor platform 1 rotates, most of the tangential force of the detection wheel during rotation can be effectively offset, thereby improving the detection stability of the sensor 4.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sensor speed measuring fixture, characterized in that, include: Mounting bracket (2) installed on the outside of the conveyor platform (1); A positioning component (3) is provided between the mounting frame (2) and the conveying platform (1). A support plate (5) for carrying the sensor (4) is fixedly installed on the upper end of the mounting frame (2). A locking component (6) for limiting the vertical position of the sensor (4) is connected to the end face of the support plate (5). The sensor (4) is tilted above the conveying platform (1).

2. The sensor speed measuring fixture according to claim 1, characterized in that: The mounting frame (2) includes two side frames (21) located on both sides of the conveying platform (1). The upper ends of the side frames (21) are inclined. The mounting plate (22) spanning above the conveying platform (1) is fixedly connected between the tops of the two side frames (21). The support plate (5) is fixed to the end face of the mounting plate (22).

3. The sensor speed measuring fixture according to claim 2, characterized in that: The bottom of the side frame (21) is equipped with adjustable feet (23); The support plate (5) has a U-shaped structure and its center line on the open side is perpendicular to the upper plane of the side frame (21), so that the sensor (4) is configured to be tilted.

4. The sensor speed measuring fixture according to claim 2, characterized in that: It also includes two clamping assemblies (7) mounted on the mounting plate (22), the clamping assemblies (7) being used to clamp the front end of the sensor (4).

5. The sensor speed measuring fixture according to claim 4, characterized in that: The positioning component (3) and the clamping component (7) have the same structure; The clamping assembly (7) includes a base (71) and a pressure rod (72) pinned to the base (71), and one end of the pressure rod (72) is provided with a pressure head (73); Among them, a drive rod (74) and a connecting rod (75) are rotatably connected to the base (71), and the other end of the connecting rod (75) is pinned to the middle of the drive rod (74).

6. The sensor speed measuring fixture according to claim 5, characterized in that: The drive rod (74) is also pinned to the middle of a locking hook rod (76), and the side of the base (71) is formed with a locking protrusion (77) that is adapted to engage with the locking hook rod (76).

7. The sensor speed measuring fixture according to claim 5, characterized in that: The tail end of the pressure rod (72) is provided with a sliding groove (78), and a screw (79) is slidably connected inside the sliding groove (78). U-shaped pads (710) and locking nuts (711) are provided on both sides of the screw (79) and the screw (79). The locking nuts (711) and the screw (79) are threadedly connected. The pressure head (73) is fixed at the bottom end of the screw (79).

8. The sensor speed measuring fixture according to claim 1, characterized in that: The locking assembly (6) includes a locking rod (61) that passes through the support plate (5) and the sensor (4) frame, and the end of the locking rod (61) has a stop portion (62) that stops at the front side of the sensor (4) frame. The locking rod (61) has a spring plug (63) embedded at its tail end, and the telescopic end of the spring plug (63) is locked to the rear side of the support plate (5).

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