A wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines

Abstract

This utility model discloses a wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines, relating to the field of explosion-proof rubber-tired vehicle testing technology. It includes a hydraulic jack, with a connecting pipe installed at the front end of the jack, and a pressure gauge mounted on the connecting pipe. The other end of the connecting pipe is connected to a testing oil pipe, and the other end of the testing oil pipe is connected to a fixed oil nozzle. In use, this wet brake internal leakage pressure tester connects the pressure tester's oil nozzle to the rear wheel oil hole for pressure testing. The pressure is compared with the original rear wheel brake pressure. A normal value indicates the vehicle is in good condition; if there is pressure loss, it indicates a rear wheel oil leak. This greatly reduces the labor intensity of workers and effectively facilitates maintenance work.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof rubber-tired vehicle testing technology, specifically a wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines. Background Technology

[0002] If oil leakage occurs at the rear wheel end of an explosion-proof rubber-tired vehicle, the leaked oil will flow into the rear axle. During troubleshooting, due to the lack of effective diagnostic methods or visually obvious leak traces to accurately pinpoint whether the leak originates in the left or right rear wheel, maintenance personnel are forced to adopt a conservative approach, completely disassembling both rear wheel assemblies (typically including the hub, bearings, and sealing components) for individual inspection, troubleshooting, and repair. This "better to disassemble the wrong one than miss one" approach significantly increases the workload of disassembly and reassembly, consuming considerable additional time and manpower, placing a heavy burden on maintenance workers, and reducing maintenance efficiency. Therefore, this application proposes a wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines to address these problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines, which solves the technical problems mentioned in the background.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines, including a hydraulic jack, a connecting pipe installed at the front end of the hydraulic jack, and a pressure gauge installed on the connecting pipe, the other end of the connecting pipe being connected to a detection oil pipe, and the other end of the detection oil pipe being connected to a fixed oil nozzle.

[0007] Preferably, the detection oil pipe is a flame-retardant hydraulic hose.

[0008] Preferably, a quick-connect coupling is provided at the connection between the fixed nozzle and the detection oil pipe.

[0009] Preferably, the fixed nozzle is provided with multiple different models, and the different models of fixed nozzles are compatible with the brake fluid holes of different vehicle models.

[0010] Preferably, the pressure gauge is an all-stainless steel oil-filled pressure gauge.

[0011] (III) Beneficial Effects

[0012] The beneficial effects of this utility model are as follows:

[0013] This type of wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines is used by connecting the pressure tester's oil nozzle to the oil hole of the rear wheel for pressure testing. During pressure testing, the pressure is compared with the original rear wheel brake pressure. If the value is normal, the vehicle is in good condition. If there is pressure loss, it indicates that the rear wheel of the vehicle is leaking oil. This greatly reduces the labor intensity of employees and effectively carries out maintenance work. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention.

[0016] In the diagram: 1. Hydraulic jack, 2. Connecting pipe, 3. Pressure gauge, 4. Testing oil pipe, 5. Fixed oil nozzle. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figure 1-2 As shown, this utility model provides a technical solution: a wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines, including a hydraulic jack 1, a connecting pipe 2 installed at the front end of the hydraulic jack 1, and a pressure gauge 3 installed on the connecting pipe 2. During pressurization, the pressure gauge 3 is compared with the original rear wheel brake pressure of the vehicle. A normal value indicates good brakes; if there is pressure loss, it indicates an oil leak in the rear wheel. This allows for accurate identification of the rear wheel oil leak point by observing the oil pressure readings, greatly reducing the labor intensity of workers and effectively carrying out maintenance work. Pressure gauge 3 is a fully stainless steel oil-filled pressure gauge, which can adapt to the high humidity, water spray and corrosive media environment in coal mines, avoiding dial blurring or mechanical failure caused by rust. The other end of the connecting pipe 2 is connected to the detection oil pipe 4, which is a flame-retardant hydraulic hose. The other end of the detection oil pipe 4 is connected to the fixed oil nozzle 5. The connection between the fixed oil nozzle 5 and the detection oil pipe 4 is equipped with a quick-connect coupling. The fixed oil nozzle 5 is available in various models, and different models of fixed oil nozzle 5 are compatible with the brake oil holes of different vehicle models, which can improve the applicability of the device.

[0019] The operational steps for this application are as follows:

[0020] By connecting the fixed oil nozzle 5 to the rear wheel oil hole, a pressure test is performed using a hydraulic jack 1. During the pressure test, the pressure gauge 3 is compared with the original rear wheel brake pressure. If the value is normal, the vehicle is in good condition. If there is pressure loss, it indicates that the vehicle's rear wheel is leaking oil. By observing the oil pressure test value, the leak point of the vehicle's rear wheel can be accurately determined, greatly reducing the labor intensity of employees and effectively carrying out maintenance work.

[0021] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines, characterized in that: It includes a hydraulic jack (1), a connecting pipe (2) is installed at the front end of the hydraulic jack (1), and a pressure gauge (3) is installed on the connecting pipe (2). The other end of the connecting pipe (2) is connected to a detection oil pipe (4), and the other end of the detection oil pipe (4) is connected to a fixed oil nozzle (5).

2. The wet brake inner leakage pressure gauge for the trackless rubber-tyred vehicle in the coal mine according to claim 1, characterized in that: The testing oil pipe (4) is a flame-retardant hydraulic hose.

3. The wet brake inner leakage pressure gauge for the trackless rubber-tyred vehicle in the coal mine according to claim 1, characterized in that: A quick-connect fitting is provided at the connection between the fixed oil nozzle (5) and the detection oil pipe (4).

4. The wet brake inner leakage pressure gauge for the trackless rubber-tyred vehicle in the coal mine according to claim 3, characterized in that: The fixed oil nozzle (5) is available in various models, and different models of fixed oil nozzles (5) are compatible with the brake oil holes of different vehicle models.

5. The wet brake internal leakage pressure tester for trackless rubber-tired vehicles in coal mines according to claim 1, characterized in that: The pressure gauge (3) is an all-stainless steel oil-filled pressure gauge.

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