KR100632398B1 - Outriggers for Aerial Work Vehicles - Google Patents

Abstract

The outrigger of a high-altitude work vehicle, the outrigger of a conventional high-altitude vehicle is integral with the cross member can be changed in the width direction of the vehicle body, but the length of the outrigger in the longitudinal direction of the vehicle body When the boom was rotated in the longitudinal direction of the vehicle body because it could not be changed, there was a problem of overturning because it could not support the moving center of gravity.

In the present invention, the curved horizontal bar 100 is made of a guide bar 20 integrally formed by welding with the lower frame 10 and a slide bar 30 inserted into and out of the guide bar 20. At one end of the guide bar 20, a drive motor 40 having a reducer 42 is installed, and the output shaft pulley 44 of the reducer 42 has tension jaw information bolts 31 and 32 at both ends thereof. The wire 34 is wound and the tension bar information bolts 31 and 32, which are both ends of the wire 34, are installed at both ends of the slide bar 30, so as to be rotated in the direction of rotation of the drive motor 40. Accordingly, the slide bar 30 is drawn out or drawn in from the guide bar 20, and the slide bar 30 drawn out forms a curved shape, so that the position of the vertical bar 9 installed at the tip of the slide bar 30 is located in the vehicle body. Located in the diagonal direction from the center of the (1), the distance is also moved by the length of the mounting table (2) of the weight of the vehicle body (1) It can be further extended to move to a region to improve the stability of the operation.

Description

Out-Trigger for high place works car}

1 is a plan view showing an outrigger of a conventional aerial vehicle,

2 is an exemplary view showing a state in which the outrigger according to the present invention is installed on the chassis;

Figure 3 is a plan view of the installation using state of the outrigger according to the present invention,

Figure 4 is an enlarged cross-sectional view of the main part of the outrigger according to the present invention,

Figure 5 (a) (b) is an exemplary view showing the operating state of the curved horizontal bar that is the main part of the outrigger according to the present invention,

Figure 6 is an enlarged longitudinal sectional view of the main portion of the outrigger according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100-curved horizontal bar,

10-lower frame, 12-bend,

20-guide bar, 22-opening,

30-slide bar, 31, 32-tension bar information bolt,

34-wire,

40-drive motor, 42-reducer,

44-pulley.

The present invention relates to an outrigger of a high-altitude working vehicle, which will be described in more detail. By doing so, the position of the vertical bar of the outrigger can be moved not only in the width direction of the vehicle body but also in the longitudinal direction of the vehicle body relates to an outrigger of the aerial work vehicle that can support the vehicle body more stably.

In general, a high-altitude working vehicle is a vehicle used for raising or lowering a heavy load on a structure such as a high-rise building, and in recent years, it has been widely used for repairing or replacing a structure installed at high altitude by a worker.

Such aerial work vehicles for carrying heavy loads and aerial work loads for maintenance and replacement of facilities must not only ensure maneuverability but also install a boom with a boarding box to enhance workability. It has been developed in various ways and is widely used in the field efficiently.

As shown in the general aerial vehicle as shown in Figure 1, the boom 5 is installed on the vehicle body 1 consisting of the mounting table 2 and the tower 3, the boom 5 is multi-stage It is composed of, the installation position is installed in the center of the mounting table (2) of the vehicle body 1 via the rotating device (4) using a ring gear, the basket 6 is mounted on the front end of the boom 5, the plane At each corner of the upper mounting table 2, an outrigger 7 consisting of a horizontal bar 8 and a vertical bar 9 is provided.

The horizontal bar (8) and the vertical bar (9) is made to expand and contract by the hydraulic cylinder, the horizontal bar (8) is not shown in the drawing, but the structure is integral with the cross member which is the main frame of the vehicle body consist of.

As described above, in order to fix the vehicle body 1 in a stable state by using each outrigger 7 installed on the mounting table 2, the horizontal bar 8 of the outrigger 7 is extended and the outrigger When the vertical bar 9 of (7) is extended, the vehicle body 1 including the boom stand 5 is supported by the outrigger 7 while being lifted from the ground, and the vehicle body 1 is fixed in a stable state.

As described above, the vehicle body 1 is operated by the boom stand 5 installed on the mounting table 2 of the vehicle body 1 in a stable state supported by the outriggers 7, whereby the boom stand 5 is performed. ), The boom 5 is rotated in the width direction of the vehicle body 1 or the longitudinal direction of the vehicle body 1 by the rotating device 4 of the boom stand 5 so that the center of gravity of the vehicle body 1 is moved. Even when the outrigger 7 is extended, the stable state can be maintained, and the aerial work can be stable.

However, since the outrigger 7 of such a high-altitude vehicle can be integrally formed with the cross member to vary the length thereof, the outrigger 7 can have stability in the width direction of the vehicle body 1, but in the longitudinal direction of the vehicle body 1. Can not vary the length of the outrigger 7 is the weight to be moved when the boom 5 is rotated in the longitudinal direction of the vehicle body 1 (especially toward the front side of the vehicle body) while the boom stand 1 is excessively drawn out There was a problem of overturning because it could not support the center.

In addition, the horizontal bar 8 of the outrigger 7 has a problem that the variable length of the horizontal bar 8 is limited to the width of the loading table, because the horizontal bar 8 is simply composed of a two-stage structure whose length is changed by a hydraulic cylinder. .

Accordingly, the present invention has been made in order to improve the problems of the conventional high-rise vehicle outrigger, by forming a horizontal bar of the outrigger to be installed in the aerial vehicle in a curved shape to install in the longitudinal direction of the vehicle body, The variable distance can be varied by the length of the loading table to provide an outrigger for a high-altitude vehicle that can expand the center of gravity moving area of the vehicle body.

In order to achieve the above object, the present invention provides a plate-shaped lower frame provided with a curved portion in the longitudinal direction on the mounting table of the vehicle body, a pair of curved horizontal bars having a curved surface corresponding to the curved portion is installed in the lower frame The curved horizontal bar includes a guide bar integrally formed by welding with a lower frame and a slide bar inserted into and out of the guide bar, and a driving motor having a reducer is installed at one end of the guide bar. The pulley of the output side of the pulley is wound with wires having tension jaw information bolts at both ends, and the tension jaw information bolts at both ends of the wire are installed at both ends of the slide bar, so that the slide bar is drawn out from the guide bar according to the rotational direction of the driving motor. Or the slide bar being drawn out is curved. As the position of the support bar installed at the tip end is located in the oblique direction from the center of the vehicle body, the distance is also moved by the length of the loading table to further expand the center of gravity moving area of the vehicle body, thereby providing stability of work.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

Exemplary Figure 2 is an exemplary view showing a state in which the outrigger according to the invention is installed on the chassis, Exemplary Fig. 3 is a plan view showing the installed use state of the outrigger according to the present invention, Exemplary Fig. 4 out An enlarged cross-sectional view of the main part of the trigger, and Figure 5 (a) (b) is an exemplary view showing the operating state of the curved horizontal bar that is the main part of the outrigger according to the present invention, Figure 6 is an outrigger according to the present invention The enlarged longitudinal cross-sectional view of.

The present invention, as represented in the above-described figure, in the outrigger of the aerial work vehicle in which the horizontal bar and the vertical bar composed of multiple stages are integrally variable in length and height, the longitudinal direction of the mounting table 2 of the vehicle body 1 Lower plate 10 is provided with a plate-shaped lower frame 10 is provided with a symmetrical curved portion 12, a pair of curved horizontal bar 100 having a curved surface to match the curved portion 12 is installed in the lower frame 10 The curved horizontal bar 100 includes a guide bar 20 integrally formed by welding with the lower frame 12 and a slide bar 30 inserted into and out of the guide bar 20. An opening 22 is formed at one end of the guide bar 20, and a driving motor 40 having a speed reducer 42 is installed, and an output shaft pulley 44 of the speed reducer 42 has tension jaw information bolts at both ends thereof. 31, 32 with wires 34 wound, both ends of the wires 34 Phosphor tension bar information 31 and 32 are provided at both ends of the slide bar 30.

The drive motor 40 is an electric motor operated by a battery of the vehicle body 1 or a hydraulic motor operated by a hydraulic pump using the engine driving force of the vehicle body.

In the drawings, reference numeral 50 is a support roller installed in the lower frame 10 to support the tip of the slide bar 30, and 52 is a guide bar 20 for guiding the wires 34 installed in the slide bar 30. A pair of guide rollers installed inside the opening 22 of the opening, 54 is a space formed on one side in the longitudinal direction of the slide bar 30, and the same components as those of the outrigger of the conventional aerial work vehicle in the drawing are conventional. It demonstrates using the sign of.

Here, the pair of curved horizontal bars 100 installed to coincide with the curved portion 12 of the lower frame 10 have the same structure, so that one curved horizontal bar 100 will be described as an example.

According to the present invention having such a configuration, as illustrated in FIGS. 2 to 6, a lower frame having a curved portion 12 symmetrically in the longitudinal direction of the vehicle body 1 on the mounting table 2 of the vehicle body 1 is illustrated. 10 is installed to be integrally formed by welding so that the curved horizontal bar 100 formed of a curved surface coinciding with the curved portion 12 of the lower frame 10 is integrally formed by welding.

The curved horizontal bar 100 is composed of a guide bar 20 and a slide bar 30, the guide bar 20, the lower end of which is hollow by the lower frame 10 and welded to the hollow cross section Is formed in a cylindrical shape, the slide bar 30 is installed therein is drawn out from the guide bar 20 by the drive motor 40 or drawn into the guide bar 20 is the length of the curved horizontal bar 100 Variable.

The drive motor 40 is installed on the opening 22 side formed at the tip of the guide bar 20, the reducer 42 which is integral with the drive motor 40 is bolted to the lower frame 10 It is installed so as to be integral with the drive frame 40 is installed in the lower frame 10, the pulley 44 is installed on the output shaft of the reducer 42, the planar portion of the opening part 22 of the guide bar 20 It is installed at a position forming a state that enters into the inside of the guide bar 20 through.

The slide bar 30 installed in the guide bar 20 has a cross-sectional area that corresponds to the cross-sectional area of the inner space of the guide bar 20 in cross-section, but toward the opening 22 side of the guide bar 20. At both ends, there is formed a space portion 54 in which a wire 34 having tension bar information bolts 31 and 32 is provided.

The tension jaw information bolts 31 and 32 provided at both ends of the wire 34 are attached to both ends of the slide bar 30 by welding, and the wire 34 is an opening 22 of the guide bar 20. It is wound without being laminated to the outer surface of the pulley 44 of the reducer 42 which is partially entered through.

When the driving motor 40 is operated in the above state, the rotational force of the driving motor 40 rotates the pulley 44 through the reduction gear 42 so that the wire 34 is moved in one direction so that the slide bar 30 is moved. Is drawn or drawn from the guide bar 20, and thus, the length of the curved horizontal bar 100 is variable in length depending on the direction in which the drive motor 40 is rotated.

In more detail, as shown in (a) and (b) of FIG. 5, when the driving motor 40 is rotated so that the pulley 44 of the reducer 42 rotates clockwise, the wire 34 ) Is moved from left to right so that the slide bar 30 is withdrawn from the guide bar 20. In contrast, when the pulley 44 of the reducer 42 is rotated counterclockwise, the wire 34 is rotated from the right side. The slide bar 30 is moved to the left side and is introduced into the guide bar 20.

At this time, the wire 34 wound vertically on the pulley 44 passes between a pair of guide rollers 52 installed on both inner surfaces of the opening 22 and is always moved at a constant position so that it is not laminated. I can keep it.

In addition, the wire 34 wound vertically on the pulley 44 has a constant tension force by the tension adjustment bolts 31 and 32 constituting both ends to form a crimped state on the outer circumferential surface of the pulley 44. do.

When the pulley 44 is rotated in the above state, the frictional force between the outer circumferential surface of the pulley 44 and the wound wire 34 is as much as the tension force of the wire 34 generated by the tension adjustment information bolts 31 and 32. The wire 34 is pulled in the direction in which the pulley 44 is rotated, and it is preferable to perform a nuling process so that the outer circumferential surface of the pulley 44 becomes rough to secure the friction force.

As the wire 34 is pulled in the direction in which the pulley 44 is rotated as described above, the slide bar 30 is moved. At this time, the support roller 50 is installed at the distal end of the guide bar 20 to allow the slide bar 30 to be moved. Supporting the bottom surface of the slide bar 30 is moved since the contact portion is in contact with the upper surface of the lower frame 10 is to minimize the frictional force can be moved even with a small force.

As described above, the slide bar 30 provided inside the guide bar 20 has the same curved shape, and when the slide bar 30 is pulled out, a known vertical bar provided at the tip of the slide bar 30 is provided. (9) is operated to support the vehicle body (1).

At this time, the withdrawal direction of the slide bar 30 forms a diagonal direction from the center of the vehicle body 1, so that the boom 1 installed on the mounting table 2 of the vehicle body 1 rotates toward the front side of the vehicle body 1 and is sued. Even when working, it can have stability, and in particular, since the moving distance can be moved by the length of the loading table 1, the center of gravity moving area of the vehicle body 1 can be more secured.

As described above, the present invention is a curved horizontal bar 100 as a guide bar 20 integrally formed by welding with the lower frame 10 and a slide bar 30 inserted into and out of the guide bar 20. ) Is made, one end of the guide bar 20 is provided with a drive motor 40 having a reducer 42, the output shaft pulley 44 of the reducer 42, the tension tank information bolt 31 at both ends A wire 34 having a wire 32 is wound, and tension tip information bolts 31 and 32 of both ends of the wire 34 are installed at both ends of the slide bar 30, thereby providing a The slide bar 30 is drawn out or drawn in from the guide bar 20 according to the rotation direction, and the slide bar 30 drawn out forms a curved shape, so that the slide bar 30 of the vertical bar 9 installed at the tip of the slide bar 30 is formed. While the position is located in the oblique direction from the center of the vehicle body 1, the distance is also moved by the length of the mounting table (2) Since the center of gravity moving area of (1) can be further expanded, the stability of the work can be improved.

Claims (3)

In the outrigger of a high-altitude working vehicle in which the horizontal bar and the vertical bar, which are composed of multiple stages, are variable in length and height, the plate-shaped curved section 12 having a symmetrical curved portion 12 in the longitudinal direction is provided on the mounting table 2 of the vehicle body 1. The lower frame 10 is installed, a pair of curved horizontal bar 100 having a curved surface coinciding with the curved portion 12 is installed in the lower frame 10, the curved horizontal bar 100 is lower A guide bar 20 integrally formed by welding with the frame 12 and a slide bar 30 inserted into and out of the guide bar 20, and having an opening portion at one end of the guide bar 20. 22 is formed and a drive motor 40 having a speed reducer 42 is installed, and the output shaft pulley 44 of the speed reducer 42 has wires 34 having tension adjustment information bolts 31 and 32 at both ends. Is wound, and the tension bar information bolts 31 and 32 which are both ends of the wire 34 are formed of the slide bar 30. It is installed on both ends Outriggers for aerial work vehicles. 2. The outrigger of the aerial work vehicle according to claim 1, wherein the drive motor (40) is a hydraulic motor operated by hydraulic pressure. The outrigger of the aerial work vehicle according to claim 1, wherein the driving motor (40) is an electric motor operated by electricity.

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