Hub bearing detection device for unmanned mine car

Abstract

The utility model discloses an unmanned mine car hub bearing detection device which comprises a detection unit and an alarm unit. The detection unit comprises a supporting seat which is arranged on the outer surface of the steering knuckle arm and is located at one end close to the hub bearing; the supporting frame is fixed on the supporting seat; the distance sensor is mounted on the supporting frame, and a preset distance is kept between the distance sensor and the tire; and the alarm unit is connected with the distance sensor. The distance sensor is installed on the supporting frame and then connected with the supporting base installed on the steering knuckle arm through the supporting frame, so that the distance sensor and the steering knuckle arm can conduct steering motion together, it is guaranteed that the motion trail of the distance sensor and the motion trail of a tire are consistent, and therefore the distance sensor is more accurate. The abrasion degree of the hub bearing can be detected in real time when the unmanned mine car is in a working state, and the actual application scene of the hub bearing of the unmanned mine car is met. In addition, the detection unit outputs detection information to the alarm unit in real time, and existing problems can be found in time.

Description

Technical Field

[0001] The present application relates to the field of bearing detection, and in particular to an unmanned mining vehicle wheel hub bearing detection device. Background Art

[0002] The wheel hub bearing is a bearing installed on the vehicle wheel hub. It is mainly used to support the rotation of the wheel hub relative to the vehicle and ensure smooth rotation between the tire and the ground. Therefore, the wheel hub bearing has a high load-bearing capacity and wear resistance.

[0003] In the mining industry, due to the large volume and high intensity of mining and transportation operations, unmanned mining vehicles often need to bear a large amount of radial loads and axial loads, so their wheel hub bearings are more prone to wear. If the degree of wear of the wheel hub bearings is not detected in time, it will often cause serious hidden dangers to production safety and cause economic losses.

[0004] There are currently two methods for testing wheel hub bearings: one is to manually rotate the wheel hub bearing for visual observation and judgment; the other is to place the wheel hub bearing in an auxiliary detection device for detection. Both detection methods are inefficient and cannot detect the degree of wear of the wheel hub bearing in real time when the wheel hub bearing is in actual working condition, which does not meet the actual application scenarios of wheel hub bearings in unmanned mines. Utility Model Content

[0005] In view of this, the present application proposes an unmanned mine wheel hub bearing detection device, which can solve the problem of low efficiency in wheel hub bearing detection in the prior art, and can detect the degree of bearing wear in real time when the wheel hub bearing is in actual working state, which is in line with the actual application scenarios of unmanned mine wheel hub bearings.

[0006] To solve the above problems, the present application discloses an unmanned mining vehicle wheel hub bearing detection device, including a detection unit and an alarm unit; the detection unit includes: a support seat, which is arranged on the outer surface of the steering knuckle arm and is located at one end close to the wheel hub bearing; a support frame, which is fixed on the support seat; a distance sensor, which is installed on the support frame and maintains a preset distance with the tire; the alarm unit is connected to the distance sensor.

[0007] Preferably, a detection point is provided on the tire, and the distance sensor detects the distance between the distance sensor and the detection point.

[0008] Preferably, the alarm unit comprises an alarm light, and the alarm light is fixedly mounted on the hood of the unmanned mining vehicle.

[0009] Preferably, the warning light is located within the monitoring range of an external camera device.

[0010] Preferably, the detection unit and the alarm unit are connected to a relay in the unmanned mining vehicle via a wire, and the relay is located in the cab.

[0011] Preferably, the relay provides power to the detection unit and the alarm unit, and transmits detection information of the detection unit to the alarm unit.

[0012] The present application installs the distance sensor on the support frame, and then connects it to the support seat installed on the steering knuckle arm through the support frame, so that the distance sensor can also perform steering movement together with the steering knuckle arm, ensuring that the movement trajectory of the distance sensor and the tire is consistent. Therefore, the wear degree of the wheel hub bearing can be detected in real time when the unmanned mine car is in working state, which meets the actual application scenario of the wheel hub bearing of the unmanned mine car. In addition, the detection unit outputs the detection information to the alarm unit in real time, which can timely discover the existing problems, solve the problem of low efficiency in wheel hub bearing detection in the prior art, and avoid property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation of a detection unit 1 of an unmanned mine wheel hub bearing detection device disclosed in the present application;

[0014] Figure 2 is with alarm unit 2 and Figure 1 Schematic diagram of the connection of the detection unit 1.

[0015] Description of reference numerals:

[0016] 1-detection unit, 11-distance sensor, 12-detection point, 13-support seat, 14-support frame;

[0017] 2-Alarm unit, 3-Wheel hub bearing, 4-Tire, 5-Steering knuckle arm, 6-Wire, 7-Relay. DETAILED DESCRIPTION

[0018] There are currently two methods for testing wheel hub bearings: one is to manually rotate the wheel hub bearing for visual observation and judgment; the other is to place the wheel hub bearing in an auxiliary detection device for detection. Both detection methods are inefficient and cannot detect the degree of wear of the wheel hub bearing in real time when the wheel hub bearing is in actual working condition, which does not meet the actual application scenarios of wheel hub bearings in unmanned mines.

[0019] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] This application proposes an unmanned mine wheel hub bearing detection device, such as Figure 1 and Figure 2As shown, it includes a detection unit 1 and an alarm unit 2; the detection unit 1 includes: a support seat 13, which is arranged on the outer surface of the steering knuckle arm 5 and is located at one end close to the wheel hub bearing 3; a support frame 14, which is fixed on the support seat 13; a distance sensor 11, which is installed on the support frame 14 and maintains a preset distance with the tire 4; the alarm unit 2 is connected to the distance sensor 11.

[0021] The steering knuckle arm 5 is the last-stage force transmission component of the unmanned mining vehicle steering unit. The distance sensor 11 is installed on the steering knuckle arm 5 so that the distance between the distance sensor 11 and the tire 4 is small, thereby reducing the possibility of error.

[0022] The support frame 14 can be bolted or welded to the support base 13 , and the distance sensor 11 is installed on the support base 13 with screws, thereby ensuring the stability and convenience of the installation of the detection unit 1 .

[0023] The present application installs the distance sensor 11 on the support frame 14, and then connects the support frame 14 to the support seat 13 installed on the steering knuckle arm 5, so that the distance sensor 11 can also perform steering movement together with the steering knuckle arm 5, ensuring that the movement trajectory of the distance sensor 11 and the tire 4 is consistent, thereby being able to detect the wear degree of the wheel hub bearing 3 in real time when the unmanned mine car is in a working state, which meets the actual application scenario of the wheel hub bearing 3 of the unmanned mine car. In addition, the detection unit 1 outputs the detection information to the alarm unit 2 in real time, which can timely discover the existing problems, solve the problem of low efficiency in wheel hub bearing detection in the prior art, and avoid property losses.

[0024] In actual working conditions of unmanned mine vehicles, since the front wheels often need to bear a large amount of radial load and axial load compared to the rear wheels, their wheel hub bearings are more susceptible to wear. Therefore, the unmanned mine vehicle wheel hub bearing detection device disclosed in this application is more used in the detection of front wheel wheel hub bearings.

[0025] like Figure 1 and Figure 2 As shown, a detection point 12 is provided on the tire 4 , and the distance sensor 11 detects the distance between the distance sensor 11 and the detection point 12 .

[0026] It can be understood that the detection unit 1 makes a steering movement together with the steering knuckle arm 5, and the steering of the tire 4 is also controlled by the steering knuckle arm 5. When the wheel hub bearing 3 is not worn, the relative position of the detection unit 1 and the detection point 12 will not change, so the value detected by the distance sensor 11 is a constant value. In this way, when the distance sensor 11 detects that the distance between it and the detection point 12 changes, it can be determined that the tire 4 has shifted, and this shift is often caused by the wear of the wheel hub bearing 3, so that it is possible to determine whether the wheel hub bearing 3 is faulty through the distance sensor 11.

[0027] Here, the detection point 12 is not a point that actually exists on the tire 4 with physical significance, but a point that represents the relative distance between the distance sensor 11 and the tire 4 .

[0028] Specifically, when the distance detected by the distance sensor 11 is higher than the initial value, it can be determined that the tire 4 has cambered; when the distance detected by the distance sensor 11 is lower than the initial value, it can be determined that the tire 4 has sunk. Here, it can be set so that when a deviation of more than 50 mm higher or lower than the initial value occurs, it is determined that the wheel hub bearing 3 has reached the limit wear amount, and the alarm unit 2 generates an alarm signal.

[0029] like Figure 2 As shown, the alarm unit 2 includes an alarm light. The alarm light is fixedly mounted on the hood of the unmanned mining vehicle and is located within the monitoring range of the external camera device.

[0030] When the warning light flashes, it is determined that the wheel hub bearing wear has reached the limit and the vehicle should stop running immediately. The warning light can be fixed on the hood by screws or welding. Compared with other parts of the unmanned mining vehicle body, the hood is relatively flat and easy to fix the warning light. In addition, the line of sight is wide and unobstructed, making it easy for the warning information to be observed in time.

[0031] The unmanned mining car is located in the monitoring area of ​​the external camera equipment. The camera equipment can capture the real-time image of the flashing alarm light and transmit the captured video back to the remote 5G control console, providing relevant operators with more intuitive and accurate information and realizing real-time detection of the operating status of the unmanned mining car.

[0032] Furthermore, if Figure 2 As shown, the distance sensor 11 and the alarm unit 2 are connected to the relay 7 in the unmanned mining vehicle through the wire 6, and the relay 7 is located in the cab. The relay 7 provides power to the detection unit 1 and the alarm unit 2, and transmits the detection information of the detection unit 1 to the alarm unit 2.

[0033] The distance sensor 11 in the detection unit 1 is connected to a relay 7 provided on the insurance plate in the cab, and the wire 6 can be connected to the relay 7 in the cab through the top of the engine hood. Among them, the wire connection can be protected by using insulating tape or heat shrink tubing to prevent short circuit and corrosion. The relay 7 is located in the cab, so that the relevant operators can conveniently centrally control the detection unit 1 and the alarm unit 2. If there is a problem or adjustment is required, the relevant operators can operate directly in the cab without entering other parts of the mine car. In addition, the wire 6 is connected to the relay 7 in the cab through the top of the engine hood. This layout avoids the wire 6 from being damaged or interfered with by other components during the operation of the mine car, thereby improving the safety of the system.

[0034] The above is a detailed introduction to an unmanned mine wheel hub bearing detection device provided by an embodiment of the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0035] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Claims

1. An unmanned mining vehicle wheel hub bearing detection device, characterized in that: including a detection unit and an alarm unit; The detection unit comprises: A support seat is arranged on the outer surface of the steering knuckle arm and is located at one end close to the wheel hub bearing; A support frame, fixed on the support seat; A distance sensor is installed on the support frame and maintains a preset distance from the tire; The alarm unit is connected to the distance sensor.

2. The unmanned mine wheel hub bearing detection device according to claim 1, characterized in that: A detection point is arranged on the tire, and the distance sensor detects the distance between the distance sensor and the detection point.

3. The unmanned mine wheel hub bearing detection device according to claim 2, characterized in that: The alarm unit comprises an alarm light, and the alarm light is fixedly mounted on the hood of the unmanned mining vehicle.

4. The unmanned mine wheel hub bearing detection device according to claim 3, characterized in that: The warning light is located within the monitoring range of the external camera device.

5. The unmanned mine wheel hub bearing detection device according to claim 1, characterized in that: The detection unit and the alarm unit are connected to a relay in the unmanned mining vehicle through a wire, and the relay is located in the cab.

6. The unmanned mine wheel hub bearing detection device according to claim 5, characterized in that: The relay supplies power to the detection unit and the alarm unit, and transmits detection information of the detection unit to the alarm unit.

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