KR20130096069A - Outrigger balance system of high place working vehicle - Google Patents

Outrigger balance system of high place working vehicle Download PDF

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Publication number
KR20130096069A
KR20130096069A KR1020120017592A KR20120017592A KR20130096069A KR 20130096069 A KR20130096069 A KR 20130096069A KR 1020120017592 A KR1020120017592 A KR 1020120017592A KR 20120017592 A KR20120017592 A KR 20120017592A KR 20130096069 A KR20130096069 A KR 20130096069A
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KR
South Korea
Prior art keywords
vehicle
sensor
outrigger
inclination
horizontal
Prior art date
Application number
KR1020120017592A
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Korean (ko)
Inventor
이종혁
김일석
신한수
Original Assignee
주식회사 에버다임
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 주식회사 에버다임 filed Critical 주식회사 에버다임
Priority to KR1020120017592A priority Critical patent/KR20130096069A/en
Publication of KR20130096069A publication Critical patent/KR20130096069A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
    • B66C2700/0378—Construction details related to the travelling, to the supporting of the crane or to the blocking of the axles; Outriggers; Coupling of the travelling mechamism to the crane mechanism

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

The horizontal level of the vehicle is controlled by controlling the outriggers, which are respectively installed at the front, rear, left, and right sides of the aerial vehicle, and each of the outriggers includes a horizontal deployment part that is developed in the horizontal direction from the vehicle body and an outrigger jack that is connected to the distal end of the horizontal development and expands and contracts in the vertical direction. The outrigger balance system to maintain. The outrigger balance system includes a tilt sensor, a horizontal deployment sensor, a jack sensor, a ground contact sensor, and a controller. The inclination sensor detects the inclination and the inclination direction of the ground. The sensor for horizontal deployment detects the length of each operation of the horizontal deployment. The sensor for the jack detects the length of each operation of the outrigger jacks. The ground contact sensor detects whether the outrigger jacks are in contact with the ground. The control unit receives the detected information from the inclination sensor, the horizontal deployment sensor, the jack sensor, and the ground contact sensor, and expands the horizontal deployment parts and then extends the outrigger jacks to contact the ground. Each length of the outrigger jacks is controlled according to the inclination and the inclination direction detected by the inclination sensor so as to keep the vehicle horizontal without contacting the ground.

Description

Outrigger balance system of high place working vehicle

The present invention relates to an outrigger balance system for maintaining the height of the aerial vehicle.

In general, aerial work vehicles such as an elevated ladder fire truck, an elevated refractory tower fire truck, and the like have an outrigger. Four outriggers are installed on both sides of the body. Each outrigger comprises a horizontal beam deployed by the horizontal cylinder from the vehicle body, and an outrigger jack coupled to the distal end of the horizontal beam and telescopic in the vertical direction. The outrigger jack consists of a jack cylinder and a jack rod that is telescopically moved by the jack cylinder and has a shoe mounted at the bottom thereof.

These outriggers require a balance function to keep the vehicle level for stable operation of the vehicle. The existing outrigger balance system is designed to keep the vehicle level by simply extending the outrigger jack at a lower position according to the inclination of the ground after the outrigger jack contacts the ground.

However, the larger the ground slope, the longer the extension length of the outrigger jack, that is, the jack rod, in order to keep the vehicle horizontal. In particular, the longer the distance between the outriggers, the longer the jack cylinder should be in order to keep the vehicle level.

In addition, if the balancing operation is performed in a general manner without considering the elongation length of the jack rod, when the front part of the vehicle is inclined higher than the rear part, after the balancing operation, the front axle tire of the vehicle is pressed against the ground and pressed a lot of load. Receiving this will cause a vehicle breakdown.

Due to this problem, the length of the jack cylinder cannot be shortened, and as the length of the jack cylinder increases, the portion of the jack cylinder protruding over the platform of the vehicle increases, thereby increasing interference with equipment such as a ladder or an articulated boom. Therefore, since a lot of restrictions occur in operating the ladder or articulated boom, there is a problem that the efficiency of the equipment is lowered.

Patent Registration No. 10-0666661 (January 10, 2007)

SUMMARY OF THE INVENTION An object of the present invention is to provide an outrigger balance system of a high-working vehicle that can stably level a high-working vehicle by controlling the operation length of the outrigger jacks according to the inclination and the inclination direction of the ground.

The outrigger balance system of the aerial work vehicle according to the present invention for achieving the above object is installed in the front and rear left and right sides of the aerial work vehicle, respectively, coupled to the front end of the horizontal development part and the horizontal development part deployed in the horizontal direction from the vehicle body and in the vertical direction. Maintaining the horizontal level of the vehicle by controlling the outriggers each including an outrigger jack that extends and contracts, the inclination detection sensor for detecting the inclination of the ground and the inclination direction; A sensor for a horizontal deployment unit for sensing each operation length of the horizontal deployment units; A sensor for a jack for sensing each operation length of the outrigger jacks; A ground contact sensor for detecting whether the outrigger jacks are in contact with the ground; And receiving the sensed information from the inclination sensor, the sensor for the horizontal deployment unit, the sensor for the jack, and the ground contact sensor, and after the horizontal deployment units are deployed, the outrigger jacks are extended to contact the ground. And a control unit for controlling each length of the outrigger jacks according to the inclination and the inclination direction detected by the inclination sensor so as to keep the vehicle horizontal without contacting the ground.

According to the present invention, since the vehicle can be leveled without all the tires of the vehicle being in contact with the ground, after the balancing work for the vehicle, the tires of the vehicle are pressed against the ground to be prevented from being loaded. Can be. As a result, the cause of the vehicle failure can be eliminated.

According to the present invention, it is possible to minimize the length of the jack cylinder, thereby reducing the portion of the jack cylinder protruding above the platform of the vehicle. Therefore, interference with equipment such as ladders or articulated booms can be reduced, and the efficiency of the equipment can be expected to be improved.

1 is a side view showing an example of the aerial work vehicle to which the outrigger balance system of the aerial work vehicle according to an embodiment of the present invention is applied.
Figure 2 is a block diagram of the outrigger balance system of the aerial vehicle according to an embodiment of the present invention.
3 is a view showing a state in which the front portion is inclined lower than the rear portion and stopped on the ground that is less than or equal to the first inclination.
FIG. 4 is a diagram for explaining an example of performing a balancing operation on a vehicle by the outrigger balance system in FIG. 3. FIG.
5 is a view illustrating an example of performing a balancing operation on a vehicle by an outrigger balance system in a state in which the front portion is inclined lower than the rear portion and stops on the ground inclined below the second inclination by exceeding the first inclination. For drawing.
6 is a view showing a state in which the front portion is stopped on the inclined ground higher than the rear portion.
FIG. 7 is a diagram for explaining an example of performing a balancing operation on a vehicle by the outrigger balance system in FIG. 6. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view showing an example of the aerial work vehicle to which the outrigger balance system of the aerial work vehicle according to an embodiment of the present invention is applied. And, Figure 2 is a block diagram for an outrigger balance system of the aerial vehicle according to an embodiment of the present invention.

The aerial work vehicle 10 shown in FIG. 1 is an elevated ladder fire truck, an elevated refracting tower fire truck, and the like, and includes four outriggers 20 respectively installed on the front, rear, left, and right sides of the vehicle body. Here, the outriggers 20 include a horizontal deployment portion 21 that is developed in the horizontal direction from the vehicle body, and an outrigger jack 26 that is coupled to the front end of the horizontal deployment portion 21 and expands and contracts in the vertical direction.

The horizontal deployment part 21 may be provided with a horizontal beam and the horizontal cylinder which spreads a horizontal beam from a vehicle body in a horizontal direction. The outrigger jack 26 may include a jack cylinder 27 and a jack rod 28 that extends and contracts by the jack cylinder 27. The shoe 29 may be mounted at the bottom of the jack rod 28.

The jack cylinder 27 and the horizontal cylinder may be driven by the driving unit 170 to be described later. The jack cylinder 27 reciprocates the jack rod 28 in the vertical direction by the driving unit 170. The horizontal cylinder reciprocates the horizontal beam in the horizontal direction by the driving unit 170. The driving unit 170 may include a hydraulic pump that receives power from an engine of the vehicle through a power take off and a hydraulic valve that controls hydraulic oil pressurized by the hydraulic pump.

The outrigger balance system 100 of the aerial work vehicle according to an embodiment of the present invention serves to maintain the level of the vehicle 10 by controlling the outriggers 20 described above.

As shown in FIG. 2, the outrigger balance system 100 includes an inclination sensor 110, a horizontal deployment sensor 120, a jack sensor 130, a ground contact sensor 140, and a controller 150. Include.

The inclination sensor 110 detects the inclination and the inclination direction of the ground. Before operation of the outriggers 20, the inclination sensor 110 detects the inclination and the inclination direction of the ground, so that the operation length of the outrigger jacks 26 according to the inclination and inclination direction of the ground can be calculated. In addition, when the balance operation is performed on the vehicle 10 by the operation of the outriggers 20, the inclination sensor 110 detects the inclination and the inclination direction of the ground, so that the precise balance operation can be performed.

The tilt sensor 110 may use any of the known tilt sensors. For example, the inclination sensor 110 may be configured to include a level weight at which the inclination angle changes when the vehicle 10 is inclined, and a detector for detecting a change in the inclination angle of the level weight.

Sensors 120 for horizontal deployment detect the respective operation lengths of the horizontal beams of the horizontal deployment 21. The sensors 120 for the horizontal deployment unit provide position information of the horizontal beams to the controller 150, so that the operation lengths of the horizontal beams can be controlled by the controller 150. The horizontal deployment sensor 120 may be configured as a position sensor installed to detect the position of the horizontal beam.

The sensors 130 for the jack sense the respective operating lengths of the jack rods 28 of the outrigger jacks 26. The sensors 130 for the jacks provide the position information of the jack rod 28 to the controller 150, so that the operation length of the jack rods 28 can be controlled by the controller 150. The sensor 130 for the jack may be configured as a position sensor installed to detect the position of the jack rod 28.

The ground contact sensors 140 detect whether the jack rods 28 of the outrigger jacks 26 are in contact with the ground, respectively. The ground contact sensor 140 may be configured as a pressure sensor. In this case, the ground contact sensor 140 measures the pressure while the jack rod 28 is in contact with the ground, and outputs the pressure to the controller 150. Then, when it is determined that the pressure measured from the ground contact sensor 140 reaches the set pressure, the controller 150 determines that the jack rod 28 is in contact with the ground.

The controller 150 receives the detected information from the inclination sensor 110, the sensor 120 for horizontal development, the sensor 130 for the jack, and the ground contact sensor 140. The controller 150 extends the outrigger jacks 26 and contacts the ground after the horizontal deployment portions 21 are deployed, and the tires 11 of the vehicle 10 are not in contact with the ground. Each length of the outrigger jacks 26 is controlled according to the inclination and the inclination direction detected from the inclination sensor 110 to maintain the level.

An example of the operation on the outrigger balance system 100 described above is as follows.

In a state where the aerial work vehicle 10 stops at the working position, the controller 150 receives a balance work command through the operation unit 160. Then, the controller 150 controls the driving unit 170 to expand the horizontal deployment portions 21 and then extend the outrigger jacks 26 to contact the ground. In this case, the controller 150 checks whether the outrigger jacks 26 are in contact with the ground through the ground contact sensor 140. The controller 150 may not contact the tires 11 of the vehicle with the ground based on the information about the inclination and the inclination direction detected by the inclination sensor 110 and the position information of the tires 11 of the vehicle. Each length of the outrigger jacks 26 that can keep the vehicle 10 level in the state is calculated.

Then, the controller 150 controls the driver 170 according to the calculated values to drive the outrigger jacks 26. Next, the controller 150 performs a precise balance operation based on the information detected from the tilt sensor 110. Accordingly, the vehicle 10 may be horizontally maintained without all the tires 11 of the vehicle contacting the ground. Therefore, after the balancing operation on the vehicle 10, since the tire 11 of the vehicle is pressed against the ground and pressed to prevent load, the cause of the failure of the vehicle 10 can be solved.

For example, in a state in which the vehicle 10 is stopped on the ground as shown in FIG. 3, the controller 150 controls the driving unit 170 to deploy the horizontal deployment portions 21, and then the front and rear outrigger jacks 26a. E) 26b are brought into contact with the ground. And, if it is determined that the front portion of the vehicle is inclined lower than the rear portion of the vehicle and the inclination α1 equal to or less than the first inclination, the control unit 150 may maintain the front outrigger jack 26a so as to keep the vehicle 10 horizontal. Calculate the length of each kidney. Subsequently, as shown in FIG. 4, the controller 150 stretches the front outrigger jacks 26a according to the calculated values while maintaining the lengths of the front outrigger jacks 26a. Thereafter, the controller 150 performs a precision balance operation.

Here, the first inclination is set to a value at which the balancing operation can be sufficiently performed in a category in which the calculated extension length values of the front outrigger jacks 26a do not exceed the maximum extension length values of the front outrigger jacks 26a. do.

If the vehicle 10 is stopped on the ground as shown in FIG. 5, the controller 150 controls the driving unit 170 to deploy the horizontal deployment portions 21, and then the front and rear outrigger jacks 26a. E) 26b are brought into contact with the ground. And, if it is determined that the vehicle front portion is inclined lower than the rear portion of the vehicle and is inclined α2 below the second inclination while exceeding the first inclination, the rear axle tire 11 of the vehicle is removed from the ground. Each reduction length of the rear outrigger jacks 26b is calculated so as to remain spaced apart by the set interval G1.

In addition, the controller 150 calculates each extension length of the front outrigger jacks 26a that can keep the vehicle 10 horizontal. Subsequently, the controller 150 reduces the rear outrigger jacks 26b and expands the front outrigger jacks 26a, respectively, according to the calculated values. The controller 150 performs the precision balancing operation in a state in which the rear axle tire 11 of the vehicle is spaced apart from the ground by a predetermined interval G1.

Here, the second inclination indicates that the calculated extension length value of the front outrigger jacks 26a exceeds the maximum extension length value of the front outrigger jacks 26b, but exceeds the length of the front outrigger jacks 26a by the excess value. Even if it is reduced, the rear axle tire 11 of the vehicle is set to a value that can be spaced apart from the ground by a set interval.

Accordingly, even if the length of the jack cylinder 27 is set in accordance with the first inclination, it is possible to balance the vehicle 10 to a second inclination range larger than the first inclination, thereby minimizing the length of the jack cylinder 27. can do. Thus, by reducing the portion of the jack cylinder 27 protruding above the platform of the vehicle 10, by reducing interference with equipment such as ladders or articulated booms, it is possible to expect improved efficiency of the equipment.

If the vehicle 10 is stopped on the ground as shown in FIG. 6, the controller 150 controls the driving unit 170 to deploy the horizontal deployment units 21, and then the front and rear outrigger jacks 26a. E) 26b are brought into contact with the ground. In addition, when it is determined that the front portion of the vehicle is inclined higher than the rear portion of the vehicle, the controller 150 may separate the front axle tires 11 of the vehicle from the ground by a predetermined distance G2 so as to separate the front outrigger jack 26a. Calculate the length of each kidney.

In addition, the controller 150 calculates the extension lengths of the rear outrigger jacks 26b so as to keep the vehicle 10 horizontal. Subsequently, as shown in FIG. 7, the controller 150 stretches the front and rear outrigger jacks 26a and 26b, respectively, according to the calculated values. Subsequently, the controller 150 performs the precision balancing operation in a state in which the front axle tire 11 of the vehicle is spaced apart from the ground by a predetermined interval G2. Therefore, after the balancing operation on the vehicle 10, the phenomenon in which the tires 11 of the vehicle are pressed against the ground and subjected to a load can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation and that those skilled in the art will recognize that various modifications and equivalent arrangements may be made therein. It will be possible. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

10. Vehicle 11. Vehicle Tire
20..outrigger 21..horizontal deployment
26. Outrigger jack 100. Outrigger balance system
110. Inclination sensor 120. Sensor for horizontal deployment
130. Jack sensor 140. Ground contact sensor
150. Control part 160. Control part
170..Driver

Claims (3)

The horizontal level of the vehicle is controlled by controlling the outriggers, which are respectively installed at the front, rear, left, and right sides of the aerial vehicle, and each of the outriggers includes a horizontal deployment part that is developed in the horizontal direction from the vehicle body and an outrigger jack that is connected to the distal end of the horizontal deployment part and expands and contracts in the vertical direction. In keeping,
An inclination sensor for sensing inclination and inclination direction of the ground;
A sensor for a horizontal deployment unit for sensing each operation length of the horizontal deployment units;
A sensor for a jack for sensing each operation length of the outrigger jacks;
A ground contact sensor for detecting whether the outrigger jacks are in contact with the ground; And
The tires of the vehicle are all grounded by receiving the detected information from the inclination sensor, the horizontal deployment sensor, the jack sensor, and the ground contact sensor. A control unit for controlling each length of the outrigger jacks according to the inclination and the inclination direction detected by the inclination detection sensor to maintain the level of the vehicle without contacting the vehicle;
Outrigger balance system of aerial work vehicle comprising a. The method of claim 1,
The control unit,
If it is determined that the front part of the vehicle is inclined lower than the rear part of the vehicle and is less than the first inclination, each extension length of the front outrigger jacks is calculated to maintain the level of the vehicle, and the outrigger jacks are controlled according to the calculated values. ;
If it is determined that the front part of the vehicle is lower than the rear part of the vehicle and exceeds the first inclination and is less than or equal to the second inclination, each reduction length of the rear outrigger jacks may be adjusted so that the rear axle tire of the vehicle is separated from the ground by a predetermined distance. And outrigger jacks for controlling the outrigger jacks according to the calculated values, by calculating the extension lengths of the front outrigger jacks that can keep the vehicle horizontal. The method of claim 1,
The control unit,
If it is determined that the front part of the vehicle is inclined higher than the rear part of the vehicle,
Calculate the respective extension lengths of the front outrigger jacks so that the front axle tires of the vehicle can be spaced apart from the ground by a predetermined distance, and calculate the respective extension lengths of the rear outrigger jacks to keep the vehicle horizontal. And outrigger balance systems for controlling outrigger jacks accordingly.
KR1020120017592A 2012-02-21 2012-02-21 Outrigger balance system of high place working vehicle KR20130096069A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102174081B1 (en) * 2019-05-24 2020-11-04 주식회사 호룡 outrigger driving device of a Industrial cars
RU204974U1 (en) * 2021-03-31 2021-06-21 Открытое акционерное общество «Челябинский механический завод» LIFTING MACHINE
RU2759373C2 (en) * 2021-04-21 2021-11-12 Акционерное общество "Кировский машзавод 1 Мая" (АО "КМЗ 1 Мая") Mechanism of lifting crane leveling system
US20220390094A1 (en) * 2020-02-07 2022-12-08 Briggs & Stratton, Llc Electronically-controlled portable lighting tower

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102174081B1 (en) * 2019-05-24 2020-11-04 주식회사 호룡 outrigger driving device of a Industrial cars
US20220390094A1 (en) * 2020-02-07 2022-12-08 Briggs & Stratton, Llc Electronically-controlled portable lighting tower
RU204974U1 (en) * 2021-03-31 2021-06-21 Открытое акционерное общество «Челябинский механический завод» LIFTING MACHINE
RU2759373C2 (en) * 2021-04-21 2021-11-12 Акционерное общество "Кировский машзавод 1 Мая" (АО "КМЗ 1 Мая") Mechanism of lifting crane leveling system

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