KR20220157306A - Automatic variable shaft adjustment system for freight vehicles that can automatically adjust the variable shaft balance - Google Patents

Abstract

Disclosed is an automatic variable shaft control system for a cargo vehicle capable of automatically controlling variable shaft balance. The automatic variable shaft control system for a cargo vehicle is capable of controlling variable shaft balance with respect to a special vehicle balancing an arm roll box and a vehicle body in a process where the arm roll box is loaded in the special vehicle. The system comprises: a balance control device preventing damage to a shock absorber and a spring; and a control device receiving air pressure from an air tank provided to the outside of the vehicle to respectively supply the air pressure to an airbag for ascending and an airbag for descending to enable a variable shaft to ascend and descend.

Description

Automatic variable shaft adjustment system for freight vehicles that can automatically adjust the variable shaft balance}

The present invention relates to an automatic variable shaft control system for a cargo vehicle capable of automatically adjusting the balance of a variable shaft, and more particularly, when cargo is loaded on a loading part of a cargo vehicle to which an air suspension is applied, the vehicle body is moved by the weight of the cargo. In the process of going down, the reaction shaft of the balance control sensing unit automatically descends, resulting in a switching operation. As a result, when power is supplied, the arm roll box is lifted to a certain height and balanced, so that the shock absorber (shobar) and springs of vehicle parts It relates to an automatic variable shaft control system for a truck that can automatically adjust the balance of a variable shaft to prevent damage.

In general, a special vehicle is a vehicle equipped with special facilities and structures, typically, a garbage truck, an ambulance, a fire engine, a crane, a snowplow, a mixer truck, and a tank lorry. There are various types of vehicles such as non-vibration trailers and dump trucks. In addition, transportation vehicles for transporting ultra-low temperature and high-pressure gas, ladder vehicles used in the field of construction and construction, vehicles for medical use, broadcasting, and radio wave measurement, cranes, ladder vehicles, and special vehicles for nuclear power plants can be considered as types of special vehicles. In addition, missiles and self-propelled artillery among military transportation means can be classified as specially equipped vehicles.

An arm roll box loaded onto a cleaning vehicle among specially equipped vehicles is also called a cleaning box, and is a type of container for loading objects to be cleaned.

According to the definition of the International Organization for Standardization (ISO), such a 'container' has 'durability and strength to withstand repeated use, can be linked to one or more transportation methods for transportation of goods, and is specially designed for transportation of goods. It is defined as 'transportation equipment having a volume of 35.3 cubic bits or more, equipped with cages for easy handling, designed for easy loading and unloading of goods, especially when handling changes from one mode of transport to another. have.

There are various types of containers depending on the type of cargo to be accommodated, the main transport institution, structure, material, loading amount, shape, etc., and those with a volume of 3 m3 or less are called small, and those having a volume of 3 m3 or less are called large.

As advantages of the container transport, there are mechanization of loading and unloading, reduction of packaging costs, and prevention of theft.

There are various types of such containers, such as tank containers for transporting liquid cargo, airtight containers for cargo transport that require temperature control, cargo transport containers that do not require temperature control, ceiling or side open containers, and the like.

On the other hand, in order to collect household waste and construction waste generated from daily life or construction sites and transport them to a landfill or treatment plant, a collection container is installed on the site, loaded with waste, and then towed by a dedicated truck, that is, an arm roll truck, to remove the waste. It is moved to a dedicated treatment plant for disposal or recycling.

Therefore, in order to solve problems such as safety accidents that occur in the process of collecting waste as well as loading it into a large container (arm roll box) and transporting it to a landfill or treatment plant as described above, it is necessary to safely mount the vehicle and container so that the loaded container is It is a functional device to prevent safety accidents (large-scale accidents on the road) in advance by preventing driver's anxiety as well as container separation by preventing shaking.

Here, to explain in more detail about the arm roll truck (vehicle), for example, the spreader is used temporarily during the winter season. will do

Therefore, in order to reduce even a little damage caused by unexpected heavy snowfall or snowfall in the winter, it is very important to mobilize a spreader to remove ice on the road surface.

Conventionally, in loading or unloading a spreader into a vehicle, a traction device such as a crane and a lot of manpower are mobilized, so there is a problem in that a lot of time is required as well as an increase in equipment rental and labor costs.

Therefore, a truck equipped with an arm roll is an arm roll vehicle that compensates for the disadvantages of the conventional truck in which the container is detachable as described above.

As shown in FIG. 1, a conventional arm roll vehicle 10 includes a loading unit 11 equipped with a hook 12 for loading an arm roll box 20, and pulling or pushing the loading unit 11. A frame roller 14 for facilitating loading and unloading of the arm roll box 20 when the arm roll box 20 is loaded, loaded, or unloaded on both sides of the frame of the hydraulic cylinder. is composed

The arm roll vehicle 10 configured as described above loads or unloads the arm roll box 20 by hooking the hook 12 installed in the loading unit 11 to the hook hook 21 formed in the arm roll box 20 .

At this time, the lower surface of the arm roll box 20 to be loaded or unloaded is supported by the roller 14 provided on the subframe 13 of the arm roll vehicle 10, and the lower surface is in contact with the upper surface of the subframe 13 to slide. move

However, there is a problem of causing serious secondary safety accidents when waste is loaded into the arm roll box 20 having the above configuration.

That is, when waste such as solid, liquid, or sludge is loaded on the arm roll box 20, the center of gravity of the arm roll box 20 is moved backward by the loaded waste, and also, the arm roll box 20 is moved. When pulling up, a situation in which the arm roll box 20 sags and collapses may occur, and in this process, the shock absorber and the spring are damaged, resulting in damage to the vehicle.

In addition, if the arm roll vehicle is operated with the shock absorber or spring damaged, the vehicle faces a dangerous situation during the driving process, which can cause a serious traffic safety accident. A technique for preventing shock absorbers and springs from being damaged by lifting them to their original positions and balancing them is very urgently required.

Republic of Korea Patent Publication No. 10-1007-1424 (published on 1007.01.04) Republic of Korea Registered Utility Model Publication No. 20-396854 (Announced on September 20, 1005) Republic of Korea Registered Utility Model Publication No. 20-252426 (Announced on October 18, 1001)

Therefore, an object of the present invention to solve this problem is that when the arm roll box is pulled up, the reaction shaft of the balance control sensing unit is automatically lowered in the process of sinking the arm roll box, thereby performing a switching operation, whereby power is supplied. It is to provide an automatic variable shaft control system for a truck that can automatically adjust the balance of a variable shaft to prevent damage to shock absorbers and springs by lifting and balancing the arm roll box to a certain height.

In order to achieve the above object, an automatic variable shaft adjustment system for a cargo vehicle capable of automatically adjusting the balance of a variable shaft according to the present invention is a special vehicle configured with an arm roll box to collect waste such as solid, liquid, or sludge. An automatic variable shaft control system for cargo vehicles that can adjust the balance of a variable shaft for a specially equipped vehicle that balances the arm roll box and body in the process of loading the arm roll box, By operating the reaction shaft of the sensing part by switching operation, the arm roll box and the specially equipped vehicle are balanced to prevent damage to the shock absorber and spring, and the air pressure is provided from the air tank provided outside the vehicle to lift it up and down. A control device for raising and lowering the variable shaft by supplying airbags for airbags and airbags for descent, respectively, and the balance adjusting device is loaded by connecting the power when the arm roll box is placed on the loading box in the process of loading on a specially equipped vehicle, switching It includes a balance control sensing unit composed of a solenoid valve that controls the balance by operation, wherein the balance control sensing unit includes a case in which a built-in switch is installed; a head portion that extends to one side of the case and is installed with a plunger reciprocally moved by the built-in switch; a reaction shaft installed to a predetermined length to be in contact with the body frame of the specially equipped vehicle, having a position adjustment hole capable of position adjustment so as to be in contact with the body frame, and connecting power to a solenoid valve when in contact with the body frame; and a roller installed at the front end of the reaction shaft to be rotatable along the body frame. When the arm roll box is pulled up, the reaction shaft moves downward along with the arm roll box in the process of being loaded into the loading box, and as it moves downward, it contacts a part of the body frame of the specially equipped vehicle to connect power to the solenoid valve, , It is possible to automatically adjust the balance of the variable axis, characterized in that the arm roll box is moved upward by a certain width by power connection to balance the arm roll box and the specially equipped vehicle to distribute the weight.

The reaction shaft is operated by a leveling valve operated by switching by supplying air and connecting power, or by any one of a limit switch installed in a non-contact manner with the body frame, a potentiometer that is a variable resistor, or a proximity sensor. It is possible to adjust the balance of the variable axis automatically, characterized in that it is operated.

The control device may include a case installed at a location adjacent to a variable shaft of a vehicle and having a storage space having a predetermined size therein; a motor driving control unit provided on one side of the case and controlling whether or not the motor is driven by an upper/lower pressing operation; A first air pressure control unit installed on one side of the motor driving control unit to be operated upward/downward, operated upward to drive the motor, and supplying or discharging air pressure through the upward/downward operation; a second air pressure regulator rotatably installed on one side of the first air pressure regulator and configured to rotate clockwise or counterclockwise to supply or discharge air pressure when the motor is out of order; and a first gauge provided on one side of the second air pressure controller to display the degree of air pressure rise and fall. can include

The motor drive control unit increases the air pressure when the motor is driven and discharges the air pressure when the motor is turned off. When the motor is driven, two valve radars are operated, and one valve radar raises the air pressure. The two-valve radar can drop the air pressure.

The first air pressure controller is connected to the check valve, and allows the motor to be driven only during upward manipulation, and prevents the operation of the motor driving control unit during downward manipulation so that only the motor rotates and air pressure is not supplied.

A second gauge for displaying motor pressure when the first air pressure regulator is operated upward is further provided on one side of the case, and the second gauge rotates the second air pressure regulator in an upward direction when the first air pressure regulator is operated downward. When the air pressure rises, it can be displayed, and when the second air pressure regulator is rotated in the downward direction, the air pressure drop can be displayed.

According to the automatic variable shaft adjustment system for cargo vehicles capable of automatically adjusting the balance of the variable shaft of the present invention described above, when in contact with the body frame of a specially equipped vehicle, the arm roll box is pulled up through the reaction shaft connecting the power of the solenoid valve. When the arm roll box is loaded on the loading side, the arm roll box is moved upward by a certain width to balance the arm roll box and the specially equipped vehicle, thereby distributing the weight, thereby preventing shock absorbers or springs from being damaged. .

According to the automatic variable shaft control system for cargo vehicles capable of automatically adjusting the balance of the variable shaft of the present invention, the operation of the reaction shaft is controlled by a limit switch installed in a non-contact manner with the body frame in addition to the solenoid valve, or a potentiometer that is a variable resistor, or By allowing one of the proximity sensors to be freely selected, the range of choices can be appropriately widened according to the needs of the use environment.

According to the automatic variable shaft adjustment system for cargo vehicles capable of automatically adjusting the variable shaft balance of the present invention, by balancing the specially equipped vehicle and the arm roll box before driving the vehicle, it is possible to operate the arm roll vehicle with the shock absorber or spring damaged. It is possible to prevent serious traffic accidents that may occur in advance.

1 is a view showing a state in which a container is mounted on a conventional arm roll vehicle.
2 is a state of use showing a state in which the reaction shaft of the balance control sensing unit according to the present invention is separated from the body frame of the specially equipped vehicle;
3 is a use state diagram showing a state in which the reaction axis of the balance control sensing unit according to the present invention is in contact with the body frame of a specially equipped vehicle;
Figure 4 is a perspective view showing a balance control sensing unit according to the present invention;
5 is a perspective view showing a part of a leveling valve according to the present invention;
6 is an image showing each operation unit of the variable axis control device using a motor according to the present invention;
7 is an image showing the internal configuration of a variable axis control device using a motor according to the present invention;
8 is an image showing the configuration of a variable axis control device using a motor according to the present invention;
9 is an image showing a state in which a variable axis control device using a motor according to the present invention is installed in a vehicle.

Advantages and features of the present invention, and a method for achieving them will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, only the present embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals designate like elements throughout the specification.

Thus, in some embodiments, well-known process steps, well-known structures and well-known techniques have not been described in detail in order to avoid obscuring the interpretation of the present invention.

Terms used in this specification are for describing embodiments, and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase.

As used herein, "comprises" and/or "comprising" means the presence or addition of one or more other elements, steps, operations and/or elements other than the mentioned elements, steps, operations and/or elements. is used in the sense of not excluding.

And "and/or" includes each and every combination of one or more of the recited items.

In addition, the embodiments described in this specification will be described with reference to cross-sectional views and/or schematic views, which are ideal exemplary views of the present invention.

Therefore, the embodiments of the present invention are not limited to the specific form shown, but also include changes in the form produced according to the manufacturing process.

In addition, in each drawing shown in the present invention, each component may be shown somewhat enlarged or reduced in consideration of convenience of description.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings (the same reference numerals are used for the same components as in the prior art, and detailed descriptions thereof are omitted).

In addition, it is added that the automatic variable shaft control system for a truck that can automatically adjust the variable shaft balance disclosed in this specification may be implemented in various embodiments, and is not limited to the embodiments described herein.

The main characteristics of the automatic variable shaft control system for a truck that can automatically adjust the variable shaft balance according to the present invention are as follows.

(First embodiment)

An automatic variable shaft adjustment system for a freight vehicle capable of automatically adjusting the balance of a variable shaft according to a first embodiment of the present invention is a balance control device provided in a body of a specially equipped vehicle, and waste such as solid, liquid, or sludge It is to prevent shock absorbers and springs from being damaged by balancing the arm roll box 20 and the body in the process of loading the arm roll box 20 onto a specially equipped vehicle configured to collect the arm roll box 20.

Here, the balance control device includes a balance control sensing unit 100 made of a solenoid valve that adjusts the balance by a switching operation by connecting power when the arm roll box is placed on the loading unit side and loaded in the process of loading a specially equipped vehicle. can be configured.

Of course, the balance control device according to the present invention can be applied to a variety of special vehicles, such as an arm roll vehicle having a structure in which an arm roll box is pulled up toward the loading unit side of a specially equipped vehicle, as well as a cargo vehicle in which a loading box is placed on a loading unit and is fixedly coupled.

The balance control sensing unit 100 includes a case 111a in which a built-in switch is installed, a head part 111b in which a plunger reciprocated by the built-in switch is installed, and a reaction shaft 112 in contact with the body frame of a specially equipped vehicle. And, it may be configured to include a roller 114 rotatably installed at the front end of the reaction shaft 112.

The case 111a is formed in a predetermined size, and a built-in switch (not shown) is installed therein, and a head part 111b is provided on one side thereof.

In addition, the head portion 111b extends to one side of the case 111a, and is provided with a plunger (not shown) reciprocated by a built-in switch provided inside the case 111a.

In addition, a reaction shaft 112 is provided on one side of the head part 111b to connect power of a power connection means to be described later.

The reaction shaft 112 is provided with a predetermined length and is installed to enable contact with the body frame 210 of the specially equipped vehicle.

The body frame 210 of the specially equipped vehicle in contact with the reaction shaft 112 may be provided in various ways, such as an axle beam.

That is, the body frame 210 of the specially equipped vehicle in contact with the reaction shaft 112 is not limited to the axle beam, and may be provided in various ways other than the axle beam as long as the conditions for contact with the reaction shaft 112 are met.

As such, a part of the body frame 210 in contact with the reaction shaft 112 can be detachably and firmly fixed to the fixing part 212 .

A part of the body frame 210 forms a contact portion 213 that comes into contact with the reaction shaft 112 of the balance control sensing unit 100 .

The reaction shaft 112 is preferably installed to a predetermined length so as to be in contact with the body frame 210 of the specially equipped vehicle.

A position adjustment hole 113 is formed on the reaction shaft 112 to control contact with the body frame 210 of the specially equipped vehicle and to enable position adjustment.

The reaction shaft 112 serves to connect power to the solenoid valve when in contact with the body frame 210 .

In addition, a roller 114 in contact with the body frame 210 is installed at the front end of the reaction shaft 112, and when the body frame 210 is provided as an axle beam, the roller 114 is Performs a function that rotates according to the rotation of

According to the automatic variable shaft control system for a cargo vehicle capable of automatically adjusting the balance of the variable shaft according to the present invention having the above configuration, when the reaction shaft 112 pulls up the arm roll box 20, the loading box is loaded. In the process, it moves downward along with the arm roll box 20, and as it moves downward, it comes into contact with a part of the body frame 210 of the specially equipped vehicle to connect the power of the solenoid valve.

In addition, in the process of loading a load (cargo) into a loading box fixedly coupled to a loading unit side of a cargo vehicle, the reaction shaft 112 moves downward along with the loading box by the load of the loaded load to connect power to the solenoid valve. may be

In this way, when the power is connected, the variable shaft (not shown) connected to the arm roll box 20 is lowered, and then the arm roll box 20 is moved upward by a certain width to balance the arm roll box 20 and the specially equipped vehicle. By distributing the weight, it is possible to prevent damage to vehicle parts such as shock absorbers and springs.

Therefore, the damping force of the suspension can be adjusted by preventing damage to the shock absorber and the spring, which are not among the shock absorbers that play the largest role in determining the riding comfort of the arm roll vehicle.

Meanwhile, the reaction shaft 112 may be operated by the leveling valve 300 that operates by supplying air and connecting power to the switching operation.

The leveling valve 300 is provided with a case 310 equipped with a built-in switch, and an air supply nozzle 312 provided on one side of the case 310 to receive air.

Here, the air supply nozzle 312 performs a function of inducing a switching operation of the reaction shaft 112 by receiving air and operating a built-in switch installed inside the case 310 .

In addition, the operation of the reaction shaft 112 is performed by any one of a limit switch installed in a non-contact manner with the body frame 210, a potentiometer that is a variable resistor, or a proximity sensor, so that the width of choice is selected according to the use environment. can widen

Hereinafter, the operation relationship of the automatic variable shaft adjustment system for a truck that can automatically adjust the variable shaft balance according to the first embodiment of the present invention will be described.

As shown in FIGS. 2 to 5 , the automatic variable shaft control system for a cargo vehicle capable of automatically adjusting the balance of a variable shaft according to the present invention is a balance control device provided on one side of a specially equipped vehicle equipped with an arm roll box 20. Through, in the process of loading and unloading the arm roll box 20, the arm roll box 20 and the specially equipped vehicle are balanced through the balance control sensing unit 100.

The balance control sensing unit 100 is provided at an arbitrary position corresponding to the body frame 210, such as an axle beam, and is provided on one side of the head unit 111b provided on one side of the case 111a. A reaction shaft 112 connecting power is installed.

When the arm roll box 20 is pulled up, the reaction shaft 112 moves downward along with the arm roll box 20 in the process of being loaded into the loading box, and contacts a part of the body frame 210 of the specially equipped vehicle to open the solenoid valve. connect power.

In this way, when the power of the solenoid valve is connected, the variable shaft connected to the arm roll box 20 is lowered, and then the arm roll box 20 is moved upward by a certain width to balance the arm roll box 20 and the special vehicle. can be distributed.

Accordingly, it is possible to prevent parts of a vehicle, such as a shock absorber and a spring of a specially equipped vehicle, from being damaged.

As described above, the solenoid valve used for the operation of the reaction shaft 112 is installed in a non-contact manner with the leveling valve 300 or the body frame 210 that operates by supplying air and connecting power according to the use environment. It may be provided with any one of a limit switch, a potentiometer that is a variable resistor, or a proximity sensor.

(Second embodiment)

An automatic variable shaft control system for a cargo vehicle capable of automatically adjusting the balance of a variable shaft according to a second embodiment of the present invention receives air pressure from an air tank provided outside the vehicle and supplies it to an airbag for elevation and an airbag for descent, respectively. It may also be configured to include a control device for raising and lowering the variable shaft.

The variable shaft control device 100 using a motor according to the present invention includes a case 110 having a storage space 112 of a certain size, a motor driving control unit 120 for driving a motor 122, and a motor A first air pressure regulator 130 installed on one side of the driving control unit to be operable up/down to adjust air pressure, and a first air pressure regulator 130 rotatably installed on one side of the first air pressure regulator 130 to rotate clockwise or counterclockwise. It is configured to include a second air pressure controller 140 that adjusts the air pressure by rotating the air pressure, and a first gauge 150 provided on one side of the second air pressure controller 140 to display the degree of rise and fall of the air pressure. can

The case 110 is installed at a position adjacent to the variable shaft of the vehicle 200, and a storage space 112 of a predetermined size is provided inside.

In this storage space 112, parts for constituting a variable axis control device using a motor according to the present invention are embedded.

The case 110 is preferably configured to open and close the cover 114 from the main body 116 in a casement manner.

The motor driving control unit 120 is provided on one side of the case 110 and performs a function of adjusting the air pressure by manipulating whether the motor 122 is driven by an upper/lower pressing operation.

For example, when the motor 122 is driven (operated), air pressure is supplied to increase the air pressure necessary for adjusting the variable shaft of the vehicle, and when the motor 122 is turned off, the air pressure is discharged.

Although not shown, a power supply unit is connected to the motor 122 through wires so as to supply power from the outside.

Here, when the motor 122 is driven, two valve radars are operated. One valve radar supplies air pressure and one valve radar serves to discharge air pressure.

On the other hand, it is preferable that two solenoid valves 118 are provided inside the case 110 to control the flow of air pressure so that the degree of compression can be adjusted.

As shown in FIG. 2 , an air supply line 118a receiving air from an air tank of a vehicle is connected to the solenoid valve 118 .

The first air pressure adjusting unit 130 may be installed on one side of the motor driving control unit 120 to be operated upward/downward.

The first air pressure regulator 130 operates upward to drive the motor 122, and supplies or discharges air pressure through upward/downward manipulation.

That is, the first air pressure controller 130 supplies air pressure only when operated upward, and thus, the motor 122 is designed to operate only when the switch of the first air pressure controller 130 is operated upward. , so that air pressure can be supplied as the motor 122 operates.

At this time, when the switch of the first air pressure adjusting unit 130 is operated downward to turn it off, the motor 122 operates but air pressure is not supplied.

The first air pressure regulator 130 having such a configuration is interlocked with a check valve 132 so that the air pressure is operated in one direction only and the switch of the first air pressure regulator 130 is operated upward to operate the motor. Allows air pressure to be supplied only when (122) is activated.

The second air pressure adjusting unit 140 is rotatably installed on one side of the first air pressure adjusting unit 130 and performs a function of adjusting the air pressure by a rotational operation.

When the motor 122 is out of order, the second air pressure controller 140 rotates in a clockwise or counterclockwise direction to supply or discharge air pressure.

The second air pressure regulator 140 having the above configuration is interlocked with a second gauge (not shown) to be described later, and the second gauge measures the air pressure according to the rise or fall of the air pressure according to the operation of the second air pressure regulator 140. pressure will be displayed.

The first gauge 150 is provided on one side of the second air pressure controller 140 to display the degree of air pressure rise and fall.

The first gauge 150 has a feature that the display needle does not move when the first air pressure controller 130 is operated upward.

Meanwhile, a second gauge (not shown) may be further provided on one side of the case 110 to display motor pressure when the first air pressure controller 130 is upwardly operated.

The second gauge displays an increase in air pressure when the second air pressure regulator 140 is rotated in an upward direction when the first air pressure regulator 130 is operated downward, and the second air pressure regulator 140 is lowered. It performs the function of displaying the drop in air pressure when rotating in the direction.

In this process, when the first air pressure controller 130 is operated upward, the pressure of the second gauge is lowered simultaneously with the pressure of the first gauge.

As such, when the pressure of the first and second gauges decreases, the motor 122 is driven by pressing the upper part of the motor driving control unit 120, and the air pressure is increased by driving the motor 122 to control the variable shaft of the vehicle. be able to

In the above, preferred embodiments of the present invention have been described by way of example, but the scope of the present invention is not limited only to such specific embodiments, and within the scope obvious to those skilled in the art who understand the spirit of the present invention, the components Other embodiments may be proposed by addition, change, deletion, addition, etc. of, but this should also be construed as belonging to the scope described in the claims of the present invention.

10: arm roll vehicle,
11: loading unit,
12 : hook
14: frame roller,
20: arm roll box,
100: balance control sensing unit,
111a: case,
111b: head part,
112: reaction axis,
113: position adjustment hole,
114: roller,
210: body frame,
212: fixing part,
213: contact,
300: leveling valve,
310: case,
312: air supply nozzle.

Claims (6)

In the process of loading the arm roll box into a specially equipped vehicle configured to collect waste such as solid or liquid, sludge, etc., the arm roll box balances the arm roll box and the car body. In the automatic variable shaft adjustment system for vehicles,
A balancing control device that prevents shock absorbers and springs from being damaged by balancing the arm roll box and the specially equipped vehicle by operating the reaction axis of the sensing unit by switching by connecting power while the arm roll box is loaded onto the specially equipped vehicle, and vehicle Including a control device that receives air pressure from an air tank provided outside and supplies it to an airbag for elevation and an airbag for descent, respectively, to raise and lower the variable shaft,
The balance control device,
When the arm roll box is loaded on the side of the load box in the process of loading on a specially equipped vehicle, it includes a balance control sensing unit made of a solenoid valve that adjusts the balance by switching operation by connecting power,
The balance control sensing unit,
A case where a built-in switch is installed;
a head portion that extends to one side of the case and is installed with a plunger reciprocally moved by the built-in switch;
a reaction shaft installed to a predetermined length to be in contact with the body frame of the specially equipped vehicle, having a position adjustment hole capable of position adjustment so as to be in contact with the body frame, and connecting power to a solenoid valve when in contact with the body frame; and
a roller installed at the front end of the reaction shaft to be rotatable along the body frame;
including,
When the arm roll box is pulled up, the reaction shaft moves downward along with the arm roll box in the process of being loaded into the loading box, and as it moves downward, it contacts a part of the body frame of the specially equipped vehicle to connect power to the solenoid valve and to connect power. An automatic variable shaft adjustment system for a cargo vehicle that can automatically adjust the variable shaft balance, characterized in that the arm roll box is moved upward by a certain width to balance the arm roll box and the special vehicle to distribute the weight.
In claim 1,
The reaction axis is
It is operated by a leveling valve operated by switching by supplying air and connecting power, or operated by any one of a limit switch installed in a non-contact manner with the body frame, a potentiometer that is a variable resistor, or a proximity sensor. Automatic variable axle control system for cargo vehicles that can automatically adjust the variable axle balance with
In claim 1,
The control device,
A case installed at a position adjacent to the variable axis of the vehicle and having a storage space of a certain size therein;
a motor driving control unit provided on one side of the case and controlling whether or not the motor is driven by an upper/lower pressing operation;
A first air pressure control unit installed on one side of the motor driving control unit to be operated upward/downward, operated upward to drive the motor, and supplying or discharging air pressure through the upward/downward operation;
a second air pressure regulator rotatably installed on one side of the first air pressure regulator and configured to rotate clockwise or counterclockwise to supply or discharge air pressure when the motor is out of order; and
a first gauge provided on one side of the second air pressure controller to display the degree of rise and fall of the air pressure;
An automatic variable axle control system for a truck that can automatically adjust the variable axle balance.
In claim 3,
The motor drive control unit,
The air pressure is increased when the motor is driven, and the air pressure is discharged when the motor is turned off.
When the motor is driven, two valve radars are operated, one valve radar raises the air pressure, and one valve radar lowers the air pressure. control system.
In claim 3,
The first air pressure regulator is connected to the check valve,
Automatic variable for trucks that can automatically balance the variable shaft, characterized in that the motor is driven only during upward operation and the motor driving control unit is not operated during downward operation so that only the motor rotates and air pressure is not supplied. axis control system.
In claim 3,
A second gauge is further provided on one side of the case to display motor pressure when the first air pressure controller is upwardly operated,
The second gauge,
When the first air pressure regulator is operated downwardly, an increase in air pressure is displayed when the second air pressure regulator is rotated in an upward direction, and a drop in air pressure is displayed when the second air pressure regulator is rotated in a downward direction. Automatic variable axle adjustment system for trucks that can adjust the variable axle balance.

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