Speed sensor testing device

Abstract

The utility model discloses a speed sensor testing device, which comprises a box body and a driving piece fixed inside the box body, a turntable is fixed at the output end of the driving piece, the driving piece is used for driving the turntable to rotate, a plurality of strong magnetic induction heads are annularly arranged on the turntable, and a bracket used for fixing a speed probe is arranged outside the box body close to the strong magnetic induction heads. After the speed sensor testing device is used, the testing accuracy is greatly improved, only speed output can be tested before, but the accuracy of an output value is not clear, the speed value can be monitored in real time at present and can be compared with a standard value, whether the speed value is qualified or not is judged according to the error, and the testing quality is greatly improved. The testing device can also be used for calibrating the speed sensor of a customer, so that the customer can know the state of the speed sensor, regular detection can be performed, the accuracy of the speed value displayed by each control and monitoring device is ensured, reliable support is provided for the intelligent mine, the design requirement is completely met, and the design purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor testing, and particularly relates to a speed sensor testing device. Background Art

[0002] As the "eyes" of the mine transportation belt system, the importance of speed sensors has become increasingly prominent in the wave of intelligent mines. With the progress of technology and the in-depth development of mine intelligence, speed sensors are not only simple data collection tools, but also one of the core nodes of the entire mine control system and monitoring network. It monitors and feeds back the running speed of the belt in real time, providing accurate data support for mine production scheduling, efficiency optimization, and safety warning.

[0003] In the construction of intelligent mines, reliable data is required to support every decision. The data provided by speed sensors not only helps mine managers understand the current production situation, but also predicts future trends through data analysis, so as to make adjustments and optimizations in advance. For example, when the running speed of the belt is found to be abnormal, the system can immediately trigger an alarm and automatically adjust the running parameters of relevant equipment to avoid potential safety risks and production delays.

[0004] Therefore, ensuring the accuracy of the measurement data of speed sensors has become the key to ensuring mine safety and improving production efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the above background art, and a speed sensor testing device is proposed.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A speed sensor testing device includes a box body and a driving member fixed inside the box body. A turntable is fixed to the output end of the driving member. The driving member is used to drive the turntable to rotate. A plurality of strong magnetic induction heads are arranged annularly on the turntable. A bracket for fixing a speed probe is arranged outside the box body near the strong magnetic induction heads. A first hole is formed through the box body between the strong magnetic induction heads and the bracket, and the first hole corresponds to each of the plurality of strong magnetic induction heads one by one.

[0008] As a further scheme of the utility model: the first holes are arranged annularly, and the diameter of the first holes is larger than the diameter of the strong magnetic induction heads.

[0009] As a further scheme of the utility model: the bracket is circular, and a plurality of second holes are formed annularly on the bracket corresponding to the first holes.

[0010] As a further solution of the utility model: the diameter of the second hole is greater than that of the first hole.

[0011] As a further solution of the utility model: a bayonet is provided on the bracket at one of the second holes, and the bayonet is used for clamping and limiting the speed probe.

[0012] As a further solution of the utility model: a frequency converter is further arranged in the box body, the frequency converter is connected with the driving member, and the frequency converter is used for controlling the driving member.

[0013] As a further solution of the utility model: the number of the strong magnetic induction heads is

[0014] As a further solution of the utility model: the number of the first holes is the same as that of the strong magnetic induction heads.

[0015] The beneficial effects of the utility model: after using the speed sensor testing device, the accuracy of inspection is greatly improved. Previously, only speed output could be tested, but the accuracy of the output value was not clear. Now, the speed value can be monitored in real time and compared with the standard value, and it is judged whether it is qualified according to the error size, which greatly improves the quality of inspection.

[0016] The testing device can also be used for calibrating the speed sensors of customers, enabling customers to understand the status of the speed sensors, and can be regularly detected to ensure the accuracy of the speed values displayed by each control and monitoring device, providing reliable support for intelligent mines, fully meeting the design requirements and achieving the design purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model with reference to the accompanying drawings.

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a front structural diagram of the utility model;

[0020] Figure 3 is a schematic diagram of the arrangement of the strong magnetic induction heads on the turntable of the utility model.

[0021] In the figure: 1, box body; 101, first hole; 2, frequency converter; 3, driving member; 4, turntable; 5, strong magnetic induction head; 7, bracket; 701, second hole; 702, bayonet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0023] Embodiment 1. Please refer to Figures 1-3 As shown in the figure, the present invention is a speed sensor test device, including a box body 1 and a driving member 3 fixed inside the box body 1. The output end of the driving member 3 is fixed with a turntable 4. The driving member 3 is used to drive the turntable 4 to rotate. A plurality of strong magnetic induction heads 5 are arranged annularly on the turntable 4. A bracket 7 for fixing a speed probe is arranged outside the box body 1 near the strong magnetic induction heads 5. A first hole 101 is formed through the box body 1 between the strong magnetic induction heads 5 and the bracket 7. The first hole 101 corresponds to the plurality of strong magnetic induction heads 5 one by one.

[0024] Embodiment 2. Please refer to Figures 1-3 As shown in the figure, the present invention is a speed sensor test device, including a box body 1 and a driving member 3 fixed inside the box body 1. The output end of the driving member 3 is fixed with a turntable 4. The driving member 3 is used to drive the turntable 4 to rotate. A plurality of strong magnetic induction heads 5 are arranged annularly on the turntable 4. A bracket 7 for fixing a speed probe is arranged outside the box body 1 near the strong magnetic induction heads 5. A first hole 101 is formed through the box body 1 between the strong magnetic induction heads 5 and the bracket 7. The first hole 101 corresponds to the plurality of strong magnetic induction heads 5 one by one. The first hole 101 is arranged annularly, and the diameter of the first hole 101 is greater than the diameter of the strong magnetic induction head 5.

[0025] Embodiment 3. Please refer to Figures 1-3 As shown in the figure, the present invention is a speed sensor test device, including a box body 1 and a driving member 3 fixed inside the box body 1. The output end of the driving member 3 is fixed with a turntable 4. The driving member 3 is used to drive the turntable 4 to rotate. A plurality of strong magnetic induction heads 5 are arranged annularly on the turntable 4. A bracket 7 for fixing a speed probe is arranged outside the box body 1 near the strong magnetic induction heads 5. A first hole 101 is formed through the box body 1 between the strong magnetic induction heads 5 and the bracket 7. The first hole 101 corresponds to the plurality of strong magnetic induction heads 5 one by one. The first hole 101 is arranged annularly, and the diameter of the first hole 101 is greater than the diameter of the strong magnetic induction head 5.

[0026] The bracket 7 is circular, and a plurality of second holes 701 are annularly formed in the bracket 7 corresponding to the first hole 101.

[0027] The diameter of the second hole 701 is larger than the diameter of the first hole 101.

[0028] A bayonet 702 is formed in the bracket 7 at one of the second holes 701, and the bayonet 702 is used for clamping and limiting the speed probe.

[0029] In another embodiment, a frequency converter 2 is further disposed in the box body 1. The frequency converter 2 is connected to the driving member 3, and the frequency converter 2 is used to control the driving member 3.

[0030] In another embodiment, the number of the strong magnetic induction heads 5 is 6.

[0031] In another embodiment, the number of the first holes 101 is the same as the number of the strong magnetic induction heads 5.

[0032] It should be noted that:

[0033] The driving member 3 may specifically be an asynchronous motor.

[0034] During inspection, it is used in conjunction with a multi-functional PLC test box.

[0035] The box body 1 is specifically a test box.

[0036] The strong magnetic induction head 5 is fixed on the turntable 4 by bolts or screws.

[0037] A set of connectors of the multi-functional PLC test box is used to control the forward and reverse rotation and frequency modulation of the frequency converter 2. The asynchronous motor with the turntable 4 controlled by the frequency converter 2 can be adjusted in speed in real time through the test box.

[0038] During detection, the speed sensor probe is installed at the bayonet 702 on the bracket 7, and the probe clip (external) is clamped to the terminal and connected to the corresponding connector socket of the test box. After all are installed, the power supply is connected, the power switch is turned on, and at the same time the test box is powered on. The speed sensor detection interface is opened, and the test speed is selected to perform the inspection.

[0039] While the speed sensor test device is controlled by the test box, the speed probe outputs a signal to the test box, and the data transmitted by the speed probe is monitored in real time on the test box, and the data is compared with the standard data. Those that meet the required error are qualified, otherwise they are unqualified.

[0040] The speed sensor test device is calibrated every six months using a calibrated tachometer to ensure its accuracy.

[0041] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as defining the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model shall still fall within the scope covered by the claims of the present utility model.

Claims

1. A speed sensor testing device, comprising a box body (1) and a driving member (3) fixed inside the box body (1), characterized in that, A turntable (4) is fixed to the output end of the driving member (3). The driving member (3) is used to drive the turntable (4) to rotate. A plurality of strong magnetic induction heads (5) are arranged annularly on the turntable (4). A bracket (7) for fixing a speed probe is provided outside the box body (1) near the strong magnetic induction heads (5). A first hole (101) is formed through the box body (1) between the strong magnetic induction heads (5) and the bracket (7). The first hole (101) corresponds to each of the plurality of strong magnetic induction heads (5).

2. The speed sensor testing device according to claim 1, characterized in that, The first holes (101) are arranged annularly, and the diameter of the first holes (101) is larger than the diameter of the strong magnetic induction heads (5).

3. A speed sensor testing device according to claim 1, characterized in that, The bracket (7) is circular, and a plurality of second holes (701) are formed annularly on the bracket (7) corresponding to the first holes (101).

4. A speed sensor testing device according to claim 3, characterized in that The diameter of the second holes (701) is larger than the diameter of the first holes (101).

5. A speed sensor testing device according to claim 3, characterized in that, A bayonet (702) is formed at one of the second holes (701) on the bracket (7). The bayonet (702) is used for clamping and limiting the speed probe.

6. A speed sensor testing device according to any one of claims 1 to 5, characterized in that, A frequency converter (2) is further provided in the box body (1). The frequency converter (2) is connected to the driving member (3), and the frequency converter (2) is used to control the driving member (3).

7. A speed sensor testing device according to any one of claims 1 to 5, characterized in that, The number of the strong magnetic induction heads (5) is six.

8. A speed sensor testing device according to claim 7, wherein The number of the first holes (101) is the same as the number of the strong magnetic induction heads (5).

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