Tractor electrical circuit detection equipment

Abstract

The utility model discloses a tractor electrical circuit detection device, and relates to the technical field of electrical circuit detection. The system comprises a vehicle body electrical circuit system, and the vehicle body electrical circuit system comprises a vehicle body light circuit system, a vehicle body circuit system, a vehicle body gas circuit control system and a vehicle body gas circuit. The vehicle body light circuit system is composed of a seven-core socket, a seven-core plug, a main wire harness, a branch wire harness, a front position lamp, a front clearance lamp, a side lamp, a side steering lamp, a rear position lamp, a rear clearance lamp, a rear steering lamp, a reversing lamp, a brake lamp, a fog lamp and a license plate lamp. The vehicle body light circuit system comprises a vehicle body light circuit and an ABS / EBS brake system control circuit. According to the utility model, the detection equipment integrates the detection of the light circuit system of the trailer, the detection of the gas circuit control system and the detection of the electrical output end of the tractor, the detection efficiency is high, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical circuit detection, in particular to electrical circuit detection equipment for a tractor. Background Art

[0002] At present, domestic logistics and transportation are developed and busy, the roads are long and the road conditions are complicated, there are many vehicle manufacturers and models, the models and brands of the vehicle parts used are different, the driving experience of vehicle drivers is different, and the ability to discover and deal with emergencies varies greatly. Accidents occur frequently, especially due to the different understanding and optional use of vehicle axles, tires, braking systems, etc., and different maintenance standards, resulting in frequent failures, major property and economic losses, and casualties.

[0003] There are many car fire accidents in vehicle logistics transportation every year. The reasons for the car fires are that some are caused by aging of electrical lines, unreasonable installation or layout, etc., which cause short circuits and fires; some are caused by failures in the air brake system, which causes the wheel hub brake system to drag or semi-drag, causing the wheel hub brake drum to heat up, the tire to explode and ignite, and thus ignite other flammable materials.

[0004] The current status of vehicle body inspection by logistics fleets, rental platforms and maintenance plants is as follows: first, the lighting circuit system and the gas control system are both controlled and inspected by the driver at the control console in the tractor cab; second, a crude and bulky inspection controller is used to inspect the lighting circuit line, gas control pipeline and valve body, etc. These inspection methods are inefficient and costly. To address the above problems, the inventor proposes an electrical circuit inspection device for a tractor to solve the above problems. Utility Model Content

[0005] In order to solve the current problems of low efficiency and high cost of vehicle body inspection in logistics fleets, rental platforms and maintenance plants, the purpose of the utility model is to provide electrical circuit inspection equipment for tractors.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: the tractor electrical circuit detection equipment includes a body electrical circuit system, the body electrical circuit system includes a body lighting circuit system, a body circuit system, a body gas circuit control system and a body gas circuit, the body lighting circuit system is composed of a seven-core socket, a seven-core plug, a main wiring harness, a branch wiring harness, a front position lamp, a front clearance lamp, a side lamp, a side turn lamp, a rear position lamp, a rear clearance lamp, a rear turn lamp, a reverse lamp, a brake lamp, a fog lamp, and a license plate lamp, the body circuit system includes a body lighting circuit, an AB S / EBS brake system control circuit, check whether the original vehicle plug and socket are deformed or damaged, whether the seven-core connecting wire is damaged, sagging, or squeezed, whether the core head and core seat are oxidized or loose, whether the connecting bolts are loose, connect the portable light circuit detection equipment, turn on the controller power switch and the remote control switch, click the corresponding light control button on the remote control, and check the driving lights, left turn signal, right turn signal, brake lights, reverse lights and other lamps in sequence to see if they are intact, whether they are missing, damaged, loose, short-circuited or water-infiltrated, etc., and whether the light indicates the correct direction.

[0007] Preferably, the vehicle body air circuit control system is composed of pneumatic brakes, air supply pipelines, control pipelines, connecting pipelines, control valve bodies such as handshake valves, relay valves, ABS valves / EBS valves, manual parking valves, etc., air circuit connectors, air reservoirs, and brake air chambers. The vehicle body air circuit includes a brake system air circuit and an air suspension system air circuit, wherein the brake system air circuit includes basic control braking, ABS control braking, and EBS control braking.

[0008] Preferably, when the air pressure in the vehicle body air circuit is in an abnormal braking system state, when the air pressure in the vehicle body air supply pipeline or the air tank is too low, the air cut-off protection function of the vehicle body control valve body has not been released and eliminated. At this time, the vehicle body brake system is not fully released and is in a state of dragging brake or semi-drag brake, that is, the brake shoe of the wheel hub component is in friction contact with the brake drum. When the air pressure in the rear cavity of the brake air chamber and the parking cavity is too low, the parking spring in the rear cavity of the brake air chamber is not completely compressed. At this time, the brake air chamber push rod is in a fully pushed out or semi-pushed out state. Through the transmission of the linked axle adjusting arm, camshaft, brake shoe, etc., the brake shoe is in contact with the inner surface of the brake drum or the brake gap is too small. At this time, the vehicle body brake system is in a state of dragging brake or semi-drag brake, that is, the brake shoe of the wheel hub component is in friction contact with the brake drum.

[0009] Preferably, when the control air source in the vehicle body control pipeline flows back slowly or cannot be completely released and discharged, the vehicle body control valve body cannot be completely released, and the high-pressure gas in the brake air chamber cannot be completely released and discharged through the control valve body. The brake shoe return spring, the adjustment arm return spring, the brake air chamber return spring, etc. cannot return to their original positions quickly, and there is friction contact between the brake shoe and the inner surface of the brake drum, or the brake clearance is too small. At this time, the vehicle body brake system is in a state of dragging or semi-drag braking and cannot be completely released.

[0010] Compared with the prior art, the beneficial effect of the utility model is that the detection equipment integrates trailer lighting circuit system detection, gas circuit control system detection, and tractor electrical output terminal detection, and has high detection efficiency and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 This is a flow chart of the utility model.

[0013] Figure 2 This is the circuit diagram of the vehicle body light of the utility model.

[0014] Figure 3 This is a diagram of the vehicle body air circuit brake system of the utility model.

[0015] In the figure: 1. Vehicle body electrical circuit system; 2. Vehicle body lighting circuit system; 3. Vehicle body circuit system; 4. Vehicle body air circuit control system; 5. Vehicle body air circuit. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Embodiment 1: Figure 1-2As shown, the utility model provides an electrical circuit detection device for a tractor, including a body electrical circuit system 1, the body electrical circuit system 1 includes a body lighting circuit system 2, a body circuit system 3, a body gas circuit control system 4 and a body gas circuit 5, the body lighting circuit system 2 is composed of a seven-core socket, a seven-core plug, a main wiring harness, a branch wiring harness, a front position lamp, a front clearance lamp, a side lamp, a side turn lamp, a rear position lamp, a rear clearance lamp, a rear turn lamp, a reversing lamp, a brake lamp, a fog lamp and a license plate lamp, and the body circuit system 3 includes a body lighting circuit and an ABS / EBS brake system control circuit.

[0018] Working principle: Check whether the appearance of the original vehicle plug and socket is deformed or damaged, whether the seven-core connecting wire is damaged, sagging, or squeezed, whether the core head and core seat are oxidized or loose, whether the connecting bolts are loose, connect the portable lighting line detection equipment, turn on the controller power switch and the remote control switch, click the corresponding light control button on the remote control, and check the driving lights, left turn signal, right turn signal, brake lights, reversing lights and other lamps in sequence to see if they are intact, whether they are missing, damaged, loose, short-circuited or water-infiltrated, etc., and whether the light indicates the correct direction.

[0019] Embodiment 2: Figure 3 As shown, different from the first embodiment, the vehicle body air circuit control system 4 is composed of pneumatic brakes, air supply pipelines, control pipelines, connecting pipelines, control valve bodies such as handshake valves, relay valves, ABS valves / EBS valves, manual parking valves, etc., air circuit connectors, air reservoirs, and brake air chambers. The vehicle body air circuit 5 includes a brake system air circuit and an air suspension system air circuit, wherein the brake system air circuit includes basic control brakes, ABS control brakes, and EBS control brakes.

[0020] Working principle: First, the tractor air supply handshake valve is connected to the red air supply handshake valve on the vehicle body, and the high-pressure air supply source is passed through the air supply pipeline, through the control valve body such as: relay valve, ABS valve / EBS valve, and enters the air storage cylinder;

[0021] Next, the tractor control handshake valve is connected to the vehicle body yellow control handshake valve, and the high-pressure control gas source is passed through the control pipeline, through the control valve body such as: relay valve, ABS / EBS valve, and enters the valve body control cavity;

[0022] Then, the high-pressure air source in the vehicle air reservoir enters the brake chamber of the brake air chamber through the control valve body such as the relay valve, ABS / EBS valve, control pipeline, brake hose, etc., pushes the brake air chamber push rod, and through the transmission of the linked axle adjustment arm, camshaft, brake shoe, etc., the brake shoe contacts the inner surface of the brake drum, thereby generating high-speed friction braking, and finally slowing down or stopping the vehicle;

[0023] Furthermore, when the tractor driver operates the foot brake / hand brake to release, the control air source is released and flows back to the tractor control valve body for discharge. At the same time, the vehicle body control valve body, such as the relay valve and ABS / EBS valve, is released, and the high-pressure gas entering the brake air chamber control cavity flows back to the control valve body and is discharged through the valve body exhaust port.

[0024] Finally, when the brake air source is released, under the action of the brake shoe return spring, the adjusting arm return spring, the brake air chamber return spring, etc., all the axle hub brake system components return to their original positions, so that the brake shoe is out of contact with the inner surface of the wheel hub, resulting in a braking gap, and finally releasing the brake, and the vehicle returns to normal driving state.

[0025] Embodiment 3: Different from Embodiment 1 and Embodiment 2, when the air pressure of the vehicle body air circuit 5 is in an abnormal braking system state, when the air pressure of the air supply pipeline of the vehicle body or the air reservoir is too low, the air cut-off protection function of the vehicle body control valve body is not completely released and eliminated. At this time, the vehicle body brake system is not completely released and is in a state of dragging brake or semi-drag brake, that is, the wheel hub component brake shoe has friction contact with the brake drum. When the air pressure in the rear cavity of the brake air chamber and the parking cavity is too low, the parking spring in the rear cavity of the brake air chamber is not completely compressed. At this time, the brake air chamber push rod is in a state of full push-out or semi-push-out. Through the transmission of the linked axle adjustment arm, camshaft, brake shoe, etc., the brake shoe contacts the inner surface of the brake drum or the brake gap is too small. At this time, the vehicle body brake system is in a state of dragging brake or semi-drag brake, that is, the wheel hub component brake shoe has friction contact with the brake drum.

[0026] When the control air source in the vehicle body control pipeline flows back slowly or cannot be completely released and discharged, the vehicle body control valve body cannot be completely released, and the high-pressure gas in the brake air chamber cannot be completely released and discharged through the control valve body. The brake shoe return spring, adjusting arm return spring, brake air chamber return spring, etc. cannot return to their original position quickly. There is friction contact between the brake shoe and the inner surface of the brake drum, or the brake clearance is too small. At this time, the vehicle body brake system is in a state of dragging or semi-drag braking and cannot be completely released.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A tractor electrical circuit detection device, comprising a vehicle electrical circuit system (1), characterized in that: The vehicle body electrical circuit system (1) comprises a vehicle body lighting circuit system (2), a vehicle body circuit system (3), a vehicle body air circuit control system (4) and a vehicle body air circuit (5); the vehicle body lighting circuit system (2) comprises a seven-core socket, a seven-core plug, a main wiring harness, a branch wiring harness, a front position light, a front clearance light, a side light, a side turn light, a rear position light, a rear clearance light, a rear turn light, a reverse light, a brake light, a fog light and a license plate light; the vehicle body circuit system (3) comprises a vehicle body lighting circuit and an ABS / EBS brake system control circuit; the vehicle body air circuit control system (4) comprises a pneumatic brake, an air supply pipeline, a control pipeline, a connecting pipeline, a control valve body, an air circuit joint, an air reservoir and a brake air chamber.

2. The tractor electrical circuit detection device according to claim 1, characterized in that: The control valve body includes a handshake valve, a relay valve, an ABS valve / EBS valve, and a manual parking valve.

3. The tractor electrical circuit detection device according to claim 1, characterized in that: The vehicle body air circuit (5) comprises a brake system air circuit and an air suspension system air circuit.

4. The tractor electrical circuit detection device according to claim 3, characterized in that: The brake system air circuit includes basic control braking, ABS control braking, and EBS control braking.

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