WO2017135620A1

WO2017135620A1 - Apparatus for slowly driving vehicle

Info

Publication number: WO2017135620A1
Application number: PCT/KR2017/000787
Authority: WO
Inventors: 윤영곤
Original assignee: (주)케이씨이피중공업
Priority date: 2016-02-03
Filing date: 2017-01-23
Publication date: 2017-08-10
Also published as: KR101612947B1

Abstract

Disclosed is an apparatus for slowly driving a vehicle. The apparatus for slowly driving a vehicle, according to the present invention, comprises: a drive shaft which is driven by receiving power from a transmission of a vehicle; a first power switcher which has one input part, and two output parts where an output is selectively performed, has the drive shaft to be connected to the input part, and is switched so as to selectively transfer a driving force to one of the output parts; a running shaft which is connected to a first output part of the first power switcher; a second power switcher which has two input parts where an input is selectively performed, and one output part, has a first input part to be connected to the running shaft, and switches so as to selectively receive a driving force among the driving forces inputted from the two input parts; an output shaft which drives a wheel by receiving the driving force by being connected to the second power switcher; at least one hydraulic pump for working and hydraulic pump for slow-driving which receive the driving force by being connected to a second output part of the first power switcher; and a hydraulic motor for slow-driving which receives the driving force by being connected to the pump for slow-driving, and transfers the driving force by being connected to a second input part of the second power switcher.

Description

A slower device of a vehicle

The present invention relates to a slowing device of a vehicle using power take-off equipment.

In general, a vehicle having a special purpose equipment, such as a mobile mixer, road vacuum cleaner, such as a work device is often required to run slowly while running.

However, the actual vehicle is about 4-10km / h in the first gear of the transmission, and thus frequent so-called anti-clutch operation is required to slow down to 0-5km / h. Due to frequent anti-clutch operation, the fatigue of the driver increases, and the life of the clutch parts is shortened, thereby causing a problem of shortening the parts replacement cycle.

In the case of a mobile mixer, there was a problem in that a separate driver and a separate driver were required to perform a slow driving while the work device was running.

Most of the above-mentioned special vehicles are provided with a power take-off for drawing the driving force of the engine for each special purpose operation and using it for special purpose operation. In other words, the power take-off device is installed on the side of the transmission in order to use the power generated by the engine as an additional purpose, and there are sub shafts or gears to install a belt or a gear. There is a possible type. It is mainly used in special vehicles such as tow trucks, fire trucks, mixer trucks and tractors.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Registered Patent No. 10-0441556

SUMMARY OF THE INVENTION An object of the present invention is to provide a slowing device for a vehicle that can travel slowly at a speed slower than the speed at the first gear of the vehicle using a power switch of a power take-off equipment of a vehicle.

The present invention as a specific means for achieving the above object, the drive shaft driven by receiving power from the transmission of the vehicle; A first power switch having one input part and two output parts selectively outputted thereon, and having a drive shaft connected to the input part and switched to selectively transmit a driving force among the output parts; A driving shaft connected to the first output part of the first power converter; A second power switch having two input parts and one output part selectively inputted thereon, and having a first input part connected to the traveling shaft, and switching to receive a driving force selectively among the driving forces input from the two input parts; An output shaft connected to the second power changer to drive a wheel by receiving a driving force; At least one working hydraulic pump and a slowing hydraulic pump connected to a second output of the first power converter and receiving a driving force; And a slow hydraulic motor connected to the slow pump to receive the driving force and connected to the second input unit of the second power converter to transmit the driving force.

Preferably, the speed reducer is installed between the slow speed hydraulic motor and the second power converter to reduce the driving force transmitted; further includes.

Preferably, when the first power converter is output to the first output unit, at the same time the second power converter is controlled to be input only to the first input unit.

As another specific means for achieving the above object, the present invention, a slow running device of the vehicle having a power take-off equipment in the engine or transmission of the vehicle, respectively, a drive shaft driven by receiving power from the transmission; A power switch having two input parts and one output part to be selectively input, the drive shaft being connected to the first input part and switching to selectively receive a driving force among the driving forces input from the two input parts; An output shaft connected to an output of the power converter; And a hydraulic motor installed at a second input of the power converter and connected to a slow hydraulic pump provided in the power take-off equipment of the engine or transmission to receive driving power.

Preferably, the reducer is connected to the hydraulic motor to reduce the driving force; further includes.

Preferably, any one of the engine or the hydraulic pump of the transmission draws power when the power switch is switched and a driving force is input to the second input unit.

Preferably, the power switches are controlled by a radio remote control.

According to the present invention as described above has the following advantages.

(1) The present invention has the effect of allowing slower than the minimum speed per hour by switching engine power using a power take-off installed in a special vehicle or a truck, and then driving a part of the wheels.

(2) The present invention eliminates the need for so-called anti-clutch operation and thus provides an effect of preventing the driver from increasing the fatigue level and extending the replacement time of the transmission parts.

1 is a front view of a slowing device of a vehicle according to a first embodiment of the present invention.

2 and 3 are operation diagrams of a slowing device of a vehicle according to a first embodiment of the present invention, FIG. 2 shows a normal driving state, and FIG. 3 shows a slow driving state, respectively.

4 is a front view of a slowing device of a vehicle according to a second embodiment of the present invention.

5 and 6 are operation diagrams of a slowing device of a vehicle according to a second embodiment of the present invention. FIG. 5 shows a normal driving state, and FIG. 6 shows states of a slowing state.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

In this specification, terms such as "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof. In addition, when a part such as a layer, film, region, plate, etc. is said to be "on" another part, this includes not only when the other part is "right on" but also another part in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is "below" another part, this includes not only the other part "below" but also another part in the middle.

Hereinafter, a slowing device of the vehicle 1 according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, as described above, the power take-off (power take off) is usually installed on the side of the transmission in order to use the additional power in addition to the main purpose of the engine, such as a shaft or gears to install the belt or gear There is a one-way type and the type that can be switched by the operation lever, the power switch is installed. The present invention is configured to be slower than the slowest running using the power switch of the power take-off device.

As shown in FIGS. 1 to 3, a slowing device of a vehicle according to the first embodiment of the present invention includes a drive shaft 20, a first power converter 30, a travel shaft 40, and a second power converter. 50, an output shaft 60, a working hydraulic pump 70, a slow running hydraulic pump 80, and a hydraulic motor 100.

1 to 3, the drive shaft 20 is driven by receiving power from the transmission 10 of the vehicle. The driving force generated in the engine of the vehicle 1 is transmitted to the transmission 10 via a clutch or the like, where a shift is made. Therefore, the driving force that is shifted is transmitted from the transmission 10 to the drive shaft 20 so that the drive shaft 20 is rotationally driven.

Trucks such as special vehicles are mounted on the engine in the front, and the driving force is mainly used to drive the rear wheels 2 through the shaft excel.

Here, too, the drive shaft 20 transmits the driving force from the transmission 10 to the rear.

The first power converter 30 has one input unit 31 and two output units 32 for selectively outputting, the drive shaft 20 is connected to the input unit 31, the output unit It is switched to transmit the driving force selectively during 32. Accordingly, the transmission 10 is connected to one end of the drive shaft 20 and the input 31 of the first power converter 30 is connected to the other end of the drive shaft 20. The connecting portion of the drive shaft 20 is connected to the universal joint.

The first power converter 30 is the driving force is input to one input unit 31, and then the output is selectively made out of the two output unit 32, it is possible to switch. The driving shaft 40 is connected to the first output part 32a of the output part 32, and a plurality of working hydraulic pumps 70 and a slow speed hydraulic pump 80 are connected to the second output part 32b. do.

At this time, the driving force input to the drive shaft 20 in accordance with the operation of the first power converter 30 is output to the travel shaft 40, or to the working hydraulic pump 70 or the slow running hydraulic pump 80 Is output.

The driving shaft 20 is connected to the first output unit 32a of the first power converter 30 as described above. Therefore, according to the operation of the first power converter 30 is to perform two operations that do not receive or receive the driving force.

The second power converter 50 includes two input units 51 and one output unit 52 which are selectively input, and the first input unit 51a is connected to the traveling shaft 40. The driving force input from the two input units 51 is selectively switched to receive the driving force. As described above, the traveling shaft 40 is connected to the first input unit 51a, and the slow hydraulic motor 100 is connected to the second input unit 51b. The output shaft 60 is connected to the one output unit 52.

Therefore, the driving force having different torques may be input to the second power converter 50, but the output is output to only one output shaft 60. That is, the torque of the output shaft 60 fluctuates depending on the case of being input to the first input unit 51a and the case of being input to the second input unit 51b0.

The output shaft 60 is connected to the second power switch 50 to receive the driving force to drive the rear wheel (2). One end of the output shaft is connected to the output unit 52 of the second power converter 50 by a universal joint, and the other end is connected to a differential device of the rear shaft axle to transmit the driving force.

The working hydraulic pump 70 is connected to the second output portion 32b of the first power converter 30 to receive a driving force. At this time, the working hydraulic pump 70 is a hydraulic pump for drawing a driving force for the purpose of being used for a special purpose of the vehicle. Therefore, the transmitted driving force does not contribute or contribute to driving of the vehicle at all.

The slow hydraulic pump 80 is connected to the second output unit 32b of the first power converter 30 like the working hydraulic pump 70 and receives the driving force by dividing the driving power.

As a result, the driving force input to the drive shaft 20 is the working hydraulic pump 70 and the slow hydraulic pump when the first power converter 30 switches the drive transmission to the second output part 32b. It is divided into 80 and delivered. Therefore, the driving force input to the slow speed hydraulic pump 80 is much lower than the driving force of the first drive shaft 20.

The slow speed hydraulic motor 100 is connected to the slow speed hydraulic pump by the hydraulic line 90 to receive the driving force, and is connected to the second input part 51b of the second power converter 50 to transmit the driving force. .

Since the driving force transmitted from the slow speed hydraulic pump 80 is already reduced than the driving force transmitted from the drive shaft 20, the driving force transmitted to the slow speed hydraulic motor 100 is also lower than the driving force of the drive shaft 20. It is in a reduced state.

On the other hand, it may further include a reducer for reducing the driving force is installed between the slow-acting hydraulic motor 100 and the second power converter 50. During the slow driving of the vehicle, the vehicle may be decelerated by using the brake device of the vehicle, or the speed of the vehicle may be reduced by using the reducer.

2 and 3, the operation of the slowing device of the vehicle according to the present invention will be described.

First, referring to FIG. 2, a normal vehicle driving time is shown.

As shown, the driving force of the vehicle engine is transmitted to the transmission 10, and the drive shaft 20 is driven.

In this case, the first power switching device 30 is switched so that the driving force is transmitted to the first output unit 32a among the two output units 32, and the second power switching device 50 has two input units 51. ) Is switched to transmit the driving force to the first input unit (51a). The control of the first and second

power switching devices

30, 50 is always performed in the same manner, and not in other ways. That is, when the first power converter 30 is output to the first output unit 32a, the second power converter 50 is also controlled to be input only to the first input unit 51a at the same time.

Accordingly, the driving force is the first of the drive shaft 20, the input unit 31 of the first power converter 30, the first output unit 32a, the travel shaft 40, and the second power converter 50. 1 input part 51a, output shaft 60, and rear wheel 2 are transmitted in order. Accordingly, the vehicle 1 is generally driven in general.

Referring to FIG. 3, a slow driving of the vehicle is shown.

As shown, the driving force of the vehicle engine is transmitted to the transmission 10, and the drive shaft 20 is driven as well.

Then, the first power switching device 30 is switched so that the driving force is transmitted to the second output unit 32b among the two output units 32, and the second power switching device 50 has two input units ( The driving force is switched to the second input unit 51b. The control of the first and second

power switching devices

30 and 50 is always performed in the same manner, and as described above, it is not done in any other manner. That is, when the first power converter 30 is output to the second output unit 32b, the second power converter 50 is also controlled to be input only to the second input unit 51b.

Accordingly, the driving force is the drive shaft 20, the input unit 31 of the first power converter 30, the second output unit 32b, a plurality of working hydraulic pump 70 and a slow running hydraulic pump 80 , The hydraulic line 90, the hydraulic motor 100, and the second input unit 51b of the second power converter 50, the output shaft 60, and the rear wheel 2 are sequentially transmitted.

Therefore, since the engine driving force of the vehicle 1 is partially consumed by the working hydraulic pump 70, only a part of the engine driving force is transmitted to the rear wheel 2 via the slow hydraulic pump 80 and the hydraulic motor 100. The operation is reduced with both the minimum and maximum speeds reduced.

When the reducer is installed, the vehicle may be decelerated by controlling the reducer, and the reducer may be controlled by a wireless remote control together with the

power changers

30 and 50.

On the other hand, a slowing device of a vehicle according to a second embodiment of the present invention is shown in Figs.

In the slowing device of the vehicle according to the second embodiment of the present invention, referring to FIG. 4, the drive shaft 120, the power switch 130, the output shaft 140, the slow speed

hydraulic pumps

112 and 116, and the hydraulic motor 114. ).

First, the slowing device of a vehicle according to the second embodiment of the present invention includes a power take-

off device

111 and 115 and

hydraulic pumps

112 and 116 driven by the power drawn from the engine or the transmission 110 of the vehicle, respectively.

The drive shaft 120 is driven by receiving power from the transmission 110 as described above.

The power converter 130 includes two input units 131 and one output unit 132 which are selectively input, and the drive shaft 120 is connected to the first input unit 131a and the two input units. The driving force input from the 131 is selectively switched to receive the driving force.

The output shaft 140 is connected to the output unit 132 of the power converter 130.

The slow

hydraulic pumps

112 and 116 are installed in the power take-

off equipment

111 and 115 provided in the engine or the transmission 110 as described above, and are driven by the extracted power.

The hydraulic motor 114 is installed on the second input unit 131b of the power converter 130 and is connected to a slow

hydraulic pump

112 and 116 provided in the power take-

off equipment

111 and 115 of the engine or transmission. Received.

One end of the output shaft 140 is connected to the output unit 132 of the power converter 130, and the other end thereof is connected to the differential device of the rear wheel 2.

At this time, it may further include a reducer connected to the hydraulic motor 114 to reduce the driving force.

Here, when the power converter 130 is switched and the driving force is input to the second input unit 131b, any one of the

hydraulic pumps

112 and 116 of the engine or the transmission is controlled to draw power. At this time, the power switch 130 may be controlled by a wireless remote control.

5 and 6 will be described the operation of the slow motion of the vehicle according to the second embodiment of the present invention.

Referring to FIG. 5, as a normal driving state, none of the power take-off

equipments

111 and 115 provided in the engine or the transmission is in a switching operation, and the power switch 130 also includes the first input unit 131a. Is controlled to receive the driving force.

Therefore, the driving force of the engine passes through the transmission 110, and then the drive shaft 120, the first input unit 131a, the output unit 132, and the output shaft 140 and the rear wheel 2 of the power converter 130. It is delivered to the normal driving operation.

At this time, the slow operation is performed as follows.

First, any one of the power take-off equipment (111, 115) provided in the engine or transmission 110 is operated at the same time, the power converter 130 is switched to receive the driving force to the second input unit (131b).

In this state, the

hydraulic pumps

112 and 116 of any of the equipment driven among the power take-off

equipments

111 and 115 provided in the engine or the transmission are operated, and the driving force is transmitted to the hydraulic motor 114 along the

hydraulic lines

113 and 117. do.

The driving force of the hydraulic motor 114 is output to the output unit 132 of the power converter 130, and accordingly the output shaft 140 is driven to drive the rear wheel (2).

In this case, in particular, since the driving force drawn out from the power take-

off equipment

111 and 115 is a part of the driving force generated in the engine, the driving force transmitted to the hydraulic motor 114 also becomes a part, thereby allowing a low speed slow running.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention may add components within the same scope. Other embodiments may be easily proposed by changing, deleting, adding, etc., but this will also fall within the scope of the present invention.

[Description of the code]

1: vehicle

2: rear wheel 3: chassis

10: transmission 20: drive shaft

30: first power changer 40: driving shaft

50: second power converter 60: output shaft

70: hydraulic pump for work 80: slow-acting hydraulic pump

90: hydraulic line 100: hydraulic motor

Claims

A drive shaft driven by receiving power from the transmission of the vehicle;

A first power switch having one input part and two output parts selectively outputted thereon, and having a drive shaft connected to the input part and switched to selectively transmit a driving force among the output parts;

A driving shaft connected to the first output part of the first power converter;

A second power switch having two input parts and one output part selectively inputted thereon, and having a first input part connected to the traveling shaft, and switching to receive a driving force selectively among the driving forces input from the two input parts;

An output shaft connected to the second power changer to drive a wheel by receiving a driving force;

At least one working hydraulic pump and a slowing hydraulic pump connected to a second output of the first power converter and receiving a driving force; And

A slow hydraulic motor connected to the slow hydraulic pump to receive a driving force and connected to a second input unit of the second power converter to transmit a driving force;

Slow speed device of a vehicle comprising a.
The method of claim 1,

A speed reducer installed between the slow speed hydraulic motor and the second power changer to reduce driving force;

Slow speed device of a vehicle comprising a further.
The method of claim 1,

When the first power converter is output to the first output unit, at the same time the second power converter is controlled so that the input is made only to the first input unit.
The method of claim 1,

The slow change device of the vehicle, characterized in that the power switch is controlled by a wireless remote control.