Wear detection device and caliper brake

Abstract

The utility model discloses a kind of abrasion detection devices, comprising: bottom plate, first bolt, second bolt, first electrical connector, second electrical connector, power supply, alarm device, bottom plate is provided with at least two bottom plate through-hole, first bolt, second bolt are respectively installed in bottom plate through-hole;First electrical connector, second electrical connector are respectively threaded connection first bolt, second bolt, first electrical connector is connected with the first electrode of power supply by wire, the second electrode of power supply is connected with alarm device by wire, alarm device is connected with second electrical connector by wire.The utility model also discloses a kind of tongs disc type brake.The utility model can find the available abrasion value of friction plate is zero in time, sends out alarm signal.

Description

Technical Field

[0001] This utility model belongs to the field of caliper disc brakes, specifically relating to a wear detection device and a caliper disc brake. Background Technology

[0002] Caliper disc brakes are a common type of brake used in mining dump trucks. Due to the large load capacity and poor road conditions of mining dump trucks, the brake friction pads wear out quickly. If the friction pads are not detected and replaced in time when they have worn down to their limit, braking safety will be affected.

[0003] In the existing technology, the method of determining whether friction pads should be replaced by manual periodic inspection is time-consuming, labor-intensive, and also carries the risk of missing inspections, which affects the safety of the entire vehicle. Utility Model Content

[0004] The purpose of this invention is to provide a wear detection device and a caliper disc brake that can promptly detect when the usable wear value of the friction pad is zero and issue an alarm signal.

[0005] To achieve the above objectives, the technical solution used in this utility model is as follows: The wear detection device includes: a base plate, a first bolt, a second bolt, a first electrical connector, a second electrical connector, a power supply, and an alarm device. The base plate has at least two through holes, and the first bolt and the second bolt are respectively installed in the through holes. The first electrical connector and the second electrical connector are threaded to the first bolt and the second bolt, respectively. The first electrical connector is connected to the first electrode of the power supply through a wire, the second electrode of the power supply is connected to the alarm device through a wire, and the alarm device is connected to the second electrical connector through a wire.

[0006] Furthermore, the power source is a battery, with the first electrode being a positive electrode and the second electrode being a negative electrode.

[0007] Furthermore, the alarm device uses indicator lights or audible and visual alarms.

[0008] A caliper disc brake includes: friction pads, the friction pads being equipped with a wear detection device.

[0009] Preferably, the friction plate has multiple stepped holes, and the first bolt and the second bolt are respectively inserted into two stepped holes. The ends of the first bolt and the second bolt are located in the stepped holes of the friction plate, and the end faces of the ends are lower than the surface of the friction plate. The first electrical connector and the second electrical connector are respectively threaded to the bolts of the first bolt and the second bolt.

[0010] Preferably, it also includes a friction disc made of metal. After the friction disc contacts the ends of the first bolt and the second bolt, the friction disc, the first bolt, the second bolt, the first electrical connector, the second electrical connector, the power supply, and the alarm device form a closed-loop circuit.

[0011] Preferably, the friction plates on both sides of the friction disc are each equipped with a wear detection device.

[0012] The technical effects of this utility model include: This invention can promptly detect when the usable wear value of the friction pad is zero, and when the friction pad has reached its wear limit, it issues an alarm signal to remind the user to replace the friction pad. It overcomes the shortcomings of existing manual inspection methods and has the advantages of saving manpower, timely detection of friction pad wear reaching its limit, and high accuracy.

[0013] The wear detection device of this invention can also be applied to other scenarios that require warnings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the caliper disc brake in this utility model. Detailed Implementation

[0015] The following description fully illustrates specific embodiments of the present invention to enable those skilled in the art to practice and reproduce it. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1 The figure shown is a schematic diagram of the overall structure of the caliper disc brake in this utility model.

[0019] A wear detection device for a caliper disc brake includes: a base plate 1, a first bolt 2, a second bolt 3, a first electrical connector 4, a second electrical connector 5, a power supply 6, and an indicator light 7. The base plate 1 has at least two through holes, and the first bolt 2 and the second bolt 3 are respectively installed in the through holes. The first electrical connector 4 and the second electrical connector 5 are respectively threaded onto the first bolt 2 and the second bolt 3. The first electrical connector 4 is connected to the first electrode of the power supply 4 through a wire, the second electrode of the power supply 4 is connected to the indicator light 7 through a wire, and the indicator light 7 is connected to the second electrical connector 5 through a wire.

[0020] The first electrical connector 4 and the second electrical connector 5 are respectively threaded to the screw portion of the first bolt 2 and the second bolt 3.

[0021] Power supply 6 is a DC battery, with one electrode being positive and the other negative. Indicator light 7 can also be an alarm device such as an audible and visual alarm.

[0022] The caliper disc brake is equipped with a friction pad wear detection device, which has the function of detecting friction pad wear. The caliper disc brake includes: a friction pad 8 and a friction disc 9. The friction pad 8 is improved by having multiple stepped holes. The first bolt 2 and the second bolt 3 are respectively inserted into two stepped holes of the friction pad, with the ends of the first bolt 2 and the second bolt 3 located inside the stepped holes of the friction pad, and the end faces of the ends being lower than the surface of the friction pad 8. The first electrical connector 4 and the second electrical connector 5 are respectively threaded onto the screws of the first bolt 2 and the second bolt 3.

[0023] The distance A from the end face of the end to the surface of the friction plate is the usable wear value of the friction plate. The friction disc 9 is made of conductive metal. The friction disc 9 is in contact with the ends of the first bolt 2 and the second bolt 3. The friction disc 9, the first bolt 2, the second bolt 3, the first electrical connector 4, the second electrical connector 5, the power supply 6, and the indicator light 7 are connected to form a closed loop circuit.

[0024] For ease of description, this technical solution only describes a single-sided friction plate wear detection device. In actual implementation, two sets of friction plate wear detection devices should be symmetrically arranged on both sides of the friction disc 9.

[0025] This preferred embodiment uses the front wheel of a mining truck as an example to provide a detailed description of the method for detecting the wear of friction pads in a caliper disc brake.

[0026] The specific steps for detecting friction pad wear in caliper disc brakes are as follows: Step 1: The friction disc 9 is fixed on the front wheel hub, the friction pad 8 and the base plate 1 are connected to the front axle, and the friction disc 9 rotates with the front wheel; Friction plate 1 and base plate 2 are connected to the front axle and are fixed components.

[0027] Step 2: As the friction plate 8 wears down, when the wear value is zero, the friction disc 9 comes into contact with the ends of the first bolt 2 and the second bolt 3, the indicator light 6 lights up, and an alarm signal is issued.

[0028] When braking is required, the friction pad 8 is brought into contact with the friction disc 9 through the hydraulic actuation line, generating friction force to brake the front wheels.

[0029] When the available wear value is zero (distance A=0), the friction disc 9 contacts the ends of the first bolt 2 and the second bolt 3. The friction disc 9, the first bolt 2, the second bolt 3, the first electrical connector 4, the second electrical connector 5, the power supply 6, and the indicator light 7 form an electrical circuit, illuminating the indicator light 6.

[0030] Indicator light 6 can be installed in the cab or other easily visible locations to remind the operator to replace the friction pads.

[0031] The terminology used in this invention is descriptive and exemplary, and not restrictive. Since this invention can be embodied in various forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A wear detection device, characterized in that, include: The system includes a base plate, a first bolt, a second bolt, a first electrical connector, a second electrical connector, a power supply, and an alarm device. The base plate has at least two through holes, and the first bolt and the second bolt are respectively installed in the through holes. The first electrical connector and the second electrical connector are threaded to the first bolt and the second bolt, respectively. The first electrical connector is connected to the first electrode of the power supply through a wire, the second electrode of the power supply is connected to the alarm device through a wire, and the alarm device is connected to the second electrical connector through a wire.

2. The wear detection device as described in claim 1, characterized in that, The power source is a battery, with the first electrode being positive and the second electrode being negative.

3. The wear detection device as described in claim 1, characterized in that, The alarm device uses indicator lights or audible and visual alarms.

4. A caliper disc brake, comprising: The friction plate is characterized in that it is equipped with a wear detection device as described in any one of claims 1-3.

5. The caliper disc brake as described in claim 4, characterized in that, The friction plate has multiple stepped holes. The first bolt and the second bolt are respectively inserted into two stepped holes of the friction plate. The ends of the first bolt and the second bolt are located in the stepped holes of the friction plate, and the end faces of the ends are lower than the surface of the friction plate. The first electrical connector and the second electrical connector are respectively threaded to the bolts of the first bolt and the second bolt.

6. The caliper disc brake as described in claim 4, characterized in that, It also includes a metal friction disc. After the friction disc contacts the ends of the first bolt and the second bolt, the friction disc, the first bolt, the second bolt, the first electrical connector, the second electrical connector, the power supply, and the alarm device form a closed-loop circuit.

7. The caliper disc brake as described in claim 4, characterized in that, Wear detection devices are installed on the friction plates on both sides of the friction disc.

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