DD274066A1 - DEVICE FOR HYDRAULIC AGENTS AND CRANES - Google Patents

Abstract

Equipment for hydraulic excavators and cranes and similar traegergeraete that leads in the field of vision of the driver tools (38-44) on a straight path kraftschlüssessig in both directions. The tools allow for high-level excavation and grading, grave digging, compacting and transporting of loads without modification. Stem or short cutters (29 and 32) allow piling and drilling work with ballast and the arm movement exceeding the working path. Fig. 1

Description

For this 5 pages drawings

Field of application of the invention

The invention relates to a device for hydraulic excavators and cranes or similar carrier vehicles with a boom, on which at a parallel to the driving plane pivot axis and rotatable by a directional cylinder, a

Directional link is articulated, to which an upper arm and an arm parallel to the upper arm and are articulated, which lead a parallel link, on which a forearm is mounted in a separate plane, which along with a likewise mounted on the parallel link, same length and parallel arranged lower arm bar Tool leads, with a drive and synchronization device forces equal, but opposite angular excursions of the upper and lower arm.

Characteristic of the known state of the art

Devices of this A> 1 have become known through publications EP-B-117,261 and EP-B-130,236.

The disadvantage here is that the lower arm is located on the side facing away from the cab, because the view of the spoon and its filling is hindered by the boom and other parts.

When planing large areas with the excavator stationary and without turning the upper carriage, the surface becomes even if the swivel axis arranged on the boom is straight perpendicular to the forced travel. This is not achievable when planning on embankments and on surfaces above and below the timetable.

Furthermore, leveling work in both working directions can only be carried out by using the bucket in the appropriate direction and by repositioning the arm cylinder.

Furthermore, the forearm cylinder is located next to the forearm and therefore endangered during digging.

Object of the invention

The aim of the invention is to broaden the field of application, to improve the view of the tool and its working field in all situations and to reduce the risk of accidents.

Explanation of the essence of the invention

The invention has for its object to provide a device for hydraulic excavators and cranes, which makes it possible to retrofit the carrier vehicle for the different applications and tools with minimal effort and perform the work to be performed with a higher quality.

The solution of this object is achieved according to the invention in that the forearm is hinged on the Fahrei cabin side facing the parallel link and the lengths of boom and direction steering are such that the driver's cab with full utilization of the feasible by the drive device rectilinear tool movement from the upper arm, from Forearm and the associated tool is not touched.

In this case, a pivot joint is expediently incorporated into the directional handlebar, whose axis is perpendicular to a plane formed by the parallel pivot axes of Ooerarm and upper arm on the pivoting head part, wherein the head part is non-positively pivotable against the base part.

In a further embodiment of the invention, the forearm cylinder is mounted in the plane of movement of the forearm and in the direction of the excavator behind the forearm and hinged to the forearm and forearm a spoon handlebar, which carries a protected built-in bucket cylinder, through which a bucket mounted on spoon spoon from a Traglag ' is rotatable over a longitudinal sectional position into a puncture position.

The device is further characterized by the fact that the spoon cutting in the longitudinal direction and in the puncture position of the spoon, based on the straight tool path, at the same level and is used together with the chest wall of the Löifels working as excavator dozer whose height by a deflector arranged on the spoon ladder can be increased.

It is advantageous if a forklift fork steerable and non-positively rotatable by the bucket cylinder.

However, it is also possible for a compacting device to be articulated to the ladle and to be rotatable by the bucket cylinder.

According to a further feature of the invention, an extension trencher can be attached to the forearm and forearm bar, the Fräskottc can be driven by connection to the pressure oil lines to the bucket cylinder.

The following features of the invention increase the limited according to claim 1 rectilinear tool path, for example for ramming and drilling tools.

For this purpose, a drill head is articulated to the forearm and forearm, which drives a drill via a longitudinally displaceable and lockable Kelly bar or hinged to the forearm and forearm a stalk guide in which a stalk leader is longsbeweglich and rotatably guided and can be locked by a locking device, said at the ends Bohr -, ramming or tearing tools are attached.

A further advantageous solution is that a slide is attached to the forearm and forearm bar on which a short leader with 2 slides with its first slide rail is longitudinally displaceable and lockable, and that at its second slide a drilling or piling tool is guided longitudinally displaceable and lockable ,

By the embodiments according to the invention in particular the following advantages are achieved:

The view of the tool and its working field is improved in all situations and reduces the risk of accidents.

The arrangement of the swivel joint on the directional handlebar causes horizontal and rising or falling surfaces in a region extending from far below to far above the timetable, can be leveled just flat with the excavator and without superstructure rotation. Since the location of the excavator is not changed, but at intervals of several meters, the exact leveling of the entire excavator track is unnecessary. The pivotal movement also improves the connection to neighboring surfaces and facilitates ground movements in the direction of the work progress and encompassing obstacles.

The swivel joint also allows the excavation of laterally offset trenches with vertical walls.

The forearm cylinder is not endangered by the spoon filling when digging, because it is protected by the forearm.

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Leveling and light grave work can be carried out in both directions without modification. In the transition no Nachsteuern is required if the spoon blade is in both directions at the same height.

A forklift fork attached to the spoon ladder makes it possible to handle loads deep in containers, both far below the timetable as well as at high altitudes and because of the short arms.

An add-on trencher can be supplied with pressurized oil from the carrier and guided straightly by the forearm and forearm bar. It can be used by vigorous feed and adjustable trench depth on embankments, as well as transversely to the direction of travel of the carrier device and obstacles around or across.

With a compacting device hinged on the ladder, it can also be compacted on embankments, in ditches and other areas that are difficult to access or at risk.

When articulating a drill head to the forearm and forearm bar, the rectilinear motion of the arm causes drilling. If the drill head is equipped with lockable Kellystango, the drill can drill deeper by repeated arm movement.

A demolition hammer for crushing or snapping can be hinged to the spoon ladder and strongly tilted by the bucket cylinder at each discharge and working height.

At the head of a ramming tool for driving planks, a stalk leader can be attached, which is connected via a displaceable and lockable in the end positions stalk guide with the forearm and the forearm bar. Then the arm travel can be used twice and the ramming depth can be extended. The piling tool can be exchanged for a drill head.

The ramming tool can also be mounted by means of a carriage and a short stirrer with two slide rails, whereby longer piles can be rammed and pulled.

embodiments

In the drawings, embodiments of the invention are shown schematically. Show it:

Fig. 1: the device with spoon spoon and spoon for heavy soil on the crawler excavator when excavating at a 45 ° slope.

Fig. 2: as shown in FIG. 1, with cut-out embankment and when breaking loose stones. Fig. 3: a variant of the device with a leveling spoon for both working directions, the rear edge works like a dozer blade.

4: a plan view of Fig.3. with the possible without superstructure turning field of work.

Fig. 5: the device with spoon spoon and compactor and tilted by 45 ° directional control head in plan view. Fig. 6: The arms and the compactor of Fig. 5 in side view.

Fig. 7: a side view of the device with spoon spoon and stacking fork on the wheeled excavator in several working positions. Fig. 8: the device on the crawler excavator with attached to the forearm and forearm bar trencher in front view and working on a slope with a turned superstructure.

Fig. 9: the device with downwardly sucking arms, leading a directly mounted rock drill. 10 shows the device with a stalk leader and ramming tool in high and low working position. FIG. 11: eino front view of FIG. 10 with pivoted to leveling the tool directional control head and

lowered stalk leader

 Fig. 12: the device with a Kurzmäkler when recording piling or Rammgut and in vertical and

in forward tilted working position

 Fig. 13: the device with drill head, lockable Kelly bar and drill horizontally and inclined forward and backward working.

The boom 7 is hinged to the uppercarriage of an excavator 22 and rotatable by articulated on the uppercar boom cylinder 13 about a horizontal axis. At the end of the jib 7 is articulated with the horizontal pivot axis 11 of the directional control arm 8, the base part 8 b can be positively frictionally tilted by the mounted on the boom 7 direction cylinder 12. At the head part 8a of the directional control arm 8 of the upper arm 4 and the upper arm 6 are articulated. The head part 8 a is connected to the base part 8 b by means of a pivot joint 9, whose axis is arranged perpendicular to a plane extending through the axes of the upper arm and Oberarmstangenanlenkung. By a hinged to the base part 8b pivot cylinder 10, the head part is non-positively pivotable.

Upper arm 4 and upper arm 6 lead a parallel link 14 to which the lower arm 1 and the lower arm 3 are articulated, in turn, the spoon joystick 15, a guide piece or a tool z. B. 26,39 lead. Arms and rods are of equal length and in pairs parallel to each other articulated *. As a result, the parallel link 14 and the tool are always guided parallel to the directional link 8. Depending on the parallel link 14 mounted upper arm 5 and forearm cylinder 2 are hinged to the upper arm 4 and the lower arm 1 and perform the same strokes. Thus, they force-fit the same angular movement of the arms 1.4 relative to the parallel link 14, resulting in an exact rectilinear movement over the full stroke of the arms for the tool articulated on the forearm 1 and forearm 3.

In Fig. 1 to 4, a spoon link 15 is hinged to the forearm 1 and 3 forearm bar by a bucket cylinder 16 is installed protected, which can rotate the spoon 17 between the support layer 19undderStrucklage 21 on the long-cut layer 20 as desired. Fig. 1 and 2 show the working techniques in the backhoe, Fig. 3 and 4 when leveling with a variant of the device.

The spoon 17 has two cutting edges 18a and 18b, which exchange their cutting position with low spoon rotation and allow for leveling forward and backward leveling without height correction. The arms 1 and 4 are separately articulated on the parallel link 14, the upper arm cylinder 5 on the directional handlebar 8. Then the spoon can be centered on the excavator. By pivoting the head part 8a alone, the surface drawn in FIG. 4 can be processed, irrespective of whether it lies above or below the travel plane and parallel thereto or on the rising or thawing slope.

In Fig.5 and 6, a compactor 38 is attached to the ladle 15, which is in a next to the excavator 22nd

compacting extending trench. The device is moved forward and backward in a straight line by the arms in the longitudinal direction of the trench, and the angle of attack and load are adjustable.

In Figure 7, a forklift fork 15 is a forklift 25 is grown, which can be rotated by the bucket cylinder 16 and through the

Possibility of movement of the device which can perform, for example, shown loading and transport.

In Fig. 8 lead forearm 1 and 3 Unterarmstango an extension trencher 26. It can narrow trenches center or laterally offset and both in the direction of travel of the excavator 22 and at arbitrary angles across it and on rising or falling slopes tendon ¹ "milled.

After Fig.9. sco.agen the arms only by changing articulations of the upper arm 6 to directional control 8 and

Parallel link 14 down. As a result, the height is reduced and work in the tunnel or under low ceilings

possible. For longer range, the forearm bar 3 is implemented.

In Figs. 10 and 11, forearm 1 and forearm bar 3 carry a stalk guide 28 in which a stalk leader 29 slides, at the end of which a piling tool 40 is attached. When Rammbeginn the Stielmäkler 29 is in its upper position by the

Locking device 36 is locked to the handle guide 28 and is lowered during the piling operation by the arm movement. Have the arms reached their lowest position, the locking device 36 is released, the arms are raised and the Stielmäkler 29 locked in its lower position again. Thereafter, the ram tool 40 can be driven with ballast by the arm movement again to the Armhub. Free or non-positive rotation of the stem stalker 29 in the stalk guide 28 facilitates the pile work. By pressing the boom 13 or the direction cylinder 12 and the pivot cylinder 10 of the

Stem leader 29 can be quickly and easily aligned with the ram tool 40 in both axes. This also applies to FIG. 12

At the upper end of Stielmäklers 29, a tearing tool 42 or a demolition hammer are oefestigt, whereby their range and height is increased.

The Kurzmäkler 32 shown in Figure 12 with 2 slides slides with its first rail 33 in a hinged to the forearm 1 and 3 forearm slide 31. On its second slide 34 slides a ram 40. When picking up the Rammgutes 37 and Rammbeginn is the carriage 31 is locked in its upper and lower position by the locking device 36 in its lower and upper driving tool 40. After lowering the arms 1 and 4, the ramming is interrupted and both

Arresting devices 36 temporarily released. When lifting the arms, piling tool 40 and slide 31 slide on

Kurzmäkler 32 in their other end position. Then the Rammgut 37 can be driven again to the full Armhub with ballast.

In Fig. 13, a drill head 39 is articulated to the forearm 1 and forearm 3, which has a longitudinally displaceable and

lockable Kelly bar 43 drives a drill 44. Is the drill 44 by the rectilinear arm movement in the ground

penetrated, the lock can be released and the drill head 39 are moved back through the arms. The Kelly bar 43 is then locked in the new position and can continue to drive the drill 44 without the need for its own lifting and lowering drive. The drill head 39 can be mounted for both working directions and tilted over a large area.

Claims (11)

1. Device for hydraulic excavators and cranes or similar carrier vehicles with a boom (7) on which on a parallel to the driving plane pivot axis (11) and by a directional cylinder (12) rotatably, a directional handlebar is articulated, on which an upper arm (4) and an upper arm rod (6) parallel to the upper arm and hinged to the right, which carries a parallel link (14) on which is mounted a lower arm (Din) of its own plane, which together with a lower arm bar (3 ) leads a tool, wherein a drive and synchronization device forces equal, but opposite angular deflections of the upper and lower arm, characterized in that the lower arm (1) on the driver's cab (23) facing side on the parallel link (14) is articulated and the Lengths of boom (7) and directional handlebar (8) are dimensioned such that the driver's cab (23) at full use of the Antri by the Antri ebseinrichtung feasible rectilinear tool movement of the forearm (1), the upper arm (4) and the associated tool is not touched. 2. Device according to claim 1, characterized in that a pivot joint (9) in the directional control arm (8) is installed, whose axis is perpendicular to a plane passing through the parallel pivot axes of the upper arm (4) and upper arm rod (6) on the pivotable Head part (8 a) is formed and that the head part frictionally against the base part (8 b) is pivotable. 3. Device according to claim 1, characterized in that the forearm cylinder (2) in the plane of movement of the lower arm (1) and in the direction of the excavator (22) behind the lower arm (1) is mounted. 4. Device according to claim 1, characterized in that on the forearm (1) and forearm rod (3) a spoon-ladder (15) is articulated, which carries a protected oingebauten bucket cylinder (16) through which a spoon spoon (15) mounted spoon (15) 17) from a support layer (19) via a longitudinal position (20) to a puncture position (21) is rotatable. 5. Device according to claim 1 and 4, characterized in that the spoon cutting edge (18) in the longitudinal position (20) and in the puncture position (21) of the spoon (17), based on the straight tool path, is at the same level and together with the chest wall (24) of the bucket (17) can be used as a dozer blade operating in the direction of the excavator, the height of which can be increased by a deflector (30) arranged on the ladle (15), 6. Device according to claim 1, characterized in that the forklift (15) a forklift fork (25) articulated and duren the bucket cylinder (16) is non-positively rotatable. 7. Device according to claim 1, characterized in that on the ladle link (15) a compression device (38) is articulated and by the bucket cylinder (16) non-positively rotatable. 8. Device according to claim 1, characterized in that on the lower arm (1) and forearm rod (3) a cultivation trencher (26) can be attached, the cutting chain (27) can be driven by connection to the pressure oil lines to the bucket cylinder (16). 9. Device according to claim 1, characterized in that on the lower arm (1) and forearm rod (3) a drill head (39) is articulated, the longitudinally displaceable over ene and Lockable Kelly bar 43 a Bo !. ar 44 drives. 10. Device according to claim 1, characterized in that on the forearm (1) and Unierarmstange (3) a stalk guide (28) is articulated, in which a Stielmäkler (29) is guided longitudinally movable and rotatable and by a locking device (36) can be locked and that at the ends of drilling (39), ram (40), or tearing tools (42) are attached. 11. The device according to claim 1, characterized in that on the lower arm (1) and forearm rod (3) a carriage (31) is mounted, on which a short leader with 2 slide rails (32) guided longitudinally displaceable and lockable with its first slide rail (33) is, and that at its zweiton slide rail (34) a bore (39) or ram tool (40) is guided longitudinally displaceable and lockable.