Safety brake device for air cushion vehicle to go in and out of drying furnace

Abstract

The utility model relates to a safety brake device for an air cushion vehicle entering and exiting a drying furnace, and belongs to the technical field of air cushion vehicle walking safety. According to the technical scheme, a frame of an air cushion vehicle (1) is provided with a support (3), the support (3) is provided with a brake device (2), the brake device (2) comprises an air bag (201), an air inlet pipe (202) and an exhaust valve (203), the top of the air bag (201) is fixed to the lower end face of the support (3), the air bag is provided with the air inlet pipe and the exhaust valve, and the air inlet pipe is connected with an air pump; when the air cushion vehicle is in a walking state, the exhaust valve is powered on and opened, the air bag is deflated and suspended, the air cushion vehicle is in a static state, the exhaust valve is powered off and closed, the air pump is opened, the air bag is inflated and pressed down to rub with the ground, and inflation is stopped when a set pressure value is reached. The device is simple in structure, the parking position of the air cushion vehicle can be effectively adjusted, the placing position of a transformer body is accurate, meanwhile, the air cushion vehicle is prevented from colliding with the furnace wall of a drying furnace, and the protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to a safety braking device for an air-cushion vehicle to enter and exit a drying furnace, belonging to the technical field of the walking safety of an air-cushion vehicle. Background Technique

[0002] For existing high-end transformers with high voltage levels and large capacities, when the transformer body is dried in the furnace, an air-cushion vehicle is required for transportation. When the air-cushion vehicle transports the transformer body into the furnace, due to the smooth bottom of the drying furnace and the lack of a braking device on the air-cushion vehicle, there is still a problem of sliding after the air-cushion vehicle stops, resulting in inaccurate placement positions of the transformer bodies. At the same time, due to the narrow space in the drying furnace, the air-cushion vehicle cannot brake when it stops, and it is also easy to collide with the furnace wall, causing equipment and product property losses. Therefore, there is an urgent need in the art to design a safety braking device for an air-cushion vehicle to enter and exit a drying furnace. Content of the Utility Model

[0003] The purpose of the utility model is to provide a safety braking device for an air-cushion vehicle to enter and exit a drying furnace, adding a braking device to the air-cushion vehicle to avoid the sliding of the air-cushion vehicle, making the placement position of the transformer body accurate, and at the same time avoiding collision with the furnace wall of the drying furnace, and solving the above problems existing in the background technique.

[0004] The technical solution of the utility model is as follows:

[0005] A safety braking device for an air-cushion vehicle to enter and exit a drying furnace includes an air-cushion vehicle, a braking device and a bracket. A bracket is provided on the frame of the air-cushion vehicle, and a braking device is provided on the bracket. The braking device includes an airbag, an air inlet pipe and an exhaust valve. The top of the airbag is fixed on the lower end face of the bracket. The airbag is provided with an air inlet pipe and an exhaust valve, and the air inlet pipe is connected to an air pump. When the air-cushion vehicle is in a running state, the exhaust valve is energized and opened, and the airbag deflates and floats in the air. When the air-cushion vehicle is in a stationary state, the exhaust valve is de-energized and closed, and the air pump is opened. The airbag inflates and presses down to friction with the ground, and stops inflating when reaching the set pressure value.

[0006] Further, brackets are provided at both diagonal ends of the frame of the air-cushion vehicle, and a braking device is installed on each bracket.

[0007] Further, the airbag is a downward-pressing airbag, and its set pressure value is 0.3 MPa.

[0008] Further, anti-slip particles are provided at the bottom of the airbag.

[0009] The positive effect of the utility model: The structure is simple, the parking position of the air-cushion vehicle can be effectively adjusted, the placement position of the transformer body is accurate, and at the same time, the air-cushion vehicle is prevented from colliding with the furnace wall of the drying furnace, playing a protective role. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of the utility model;

[0011] Figure 2 For Figure 1 the enlarged view of part A;

[0012] In the figure: air cushion vehicle 1, braking device 2, airbag 201, air inlet pipe 202, exhaust valve 203, bracket 3, motor 4. Specific embodiments

[0013] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments:

[0014] Referring to the attached Figure 1 , this embodiment provides a safety braking device for an air cushion vehicle to enter and exit a drying furnace, which includes an air cushion vehicle 1, a braking device 2 and a bracket 3. A bracket 3 is provided on the frame of the air cushion vehicle 1, and a braking device 2 is provided on the bracket 3. The braking device 2 includes an airbag 201, an air inlet pipe 202 and an exhaust valve 203. The top of the airbag 201 is fixed to the lower end face of the bracket 3. The airbag 201 is provided with an air inlet pipe 202 and an exhaust valve 203. The air inlet pipe 202 is connected to an air pump (not shown in the figure); when the air cushion vehicle 1 is in a traveling state, the exhaust valve 203 is powered on and opened, and the airbag 201 deflates and floats. When the air cushion vehicle 1 is in a stationary state, the exhaust valve 203 is powered off and closed, the air pump is opened, the airbag 201 is inflated and pressed down to friction with the ground, and the inflation stops when the set pressure value is reached.

[0015] A braking device 2 can be installed at each of the four corners of the frame of the air cushion vehicle 1. In this embodiment, brackets 3 are provided at both diagonal ends of the frame of the air cushion vehicle 1, and a braking device 2 is installed on each bracket 3.

[0016] In this embodiment, the airbag 201 is a downward pressure airbag, and its set pressure value is 0.3 MPa.

[0017] Preferably, anti-slip particles are provided at the bottom of the airbag 201 to further increase the friction force.

[0018] The exhaust valve 203 is a solenoid valve. The power-on and power-off states of the solenoid valve are consistent with the motor walking remote control of the air cushion vehicle. The inflation (deflation) of the airbag 201 is interlocked with the motor walking of the air cushion vehicle. When the air cushion vehicle remote control controls the motor 4 to walk, the exhaust valve 203 is powered on and opened, and the airbag 201 gradually deflates and floats, and the air cushion vehicle 1 walks. When the air cushion vehicle remote control controls the motor 4 to stop, the exhaust valve 203 is powered off and closed. At this time, the air pump inflates the airbag 201 until the set pressure value is reached and then stops inflating. The airbag 201 presses down to the ground and generates a friction force to prevent the air cushion vehicle 1 from sliding.

Claims

1. A safety brake device for an air cushion vehicle entering or exiting a drying furnace, characterized in that: The invention comprises an air cushion vehicle (1), a brake device (2) and a bracket (3). The frame of the air cushion vehicle (1) is provided with a bracket (3), the bracket (3) is provided with a brake device (2), the brake device (2) comprises an air bag (201), an air intake pipe (202) and an exhaust valve (203), the top of the air bag (201) is fixed to the lower end surface of the bracket (3), the air bag (201) is provided with an air intake pipe (202) and an exhaust valve (203), and the air intake pipe (202) is connected to an air pump; when the air cushion vehicle (1) is in a moving state, the exhaust valve (203) is powered on and opened, and the air bag (201) is deflated and suspended in the air; when the air cushion vehicle (1) is in a stationary state, the exhaust valve (203) is powered off and closed, the air pump is turned on, and the air bag (201) is inflated and pressed down to rub against the ground, and the inflation stops when a set pressure value is reached.

2. The safety brake device for an air cushion vehicle entering or exiting a drying furnace according to claim 1, characterized in that: The air cushion vehicle (1) is provided with brackets (3) at both diagonal ends of the frame, and a brake device (2) is installed on each bracket (3).

3. A safety brake device for an air cushion vehicle entering or exiting a drying furnace according to claim 1 or 2, characterized in that: The bottom of the airbag (201) is provided with anti-skid particles.

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