SK7786Y1 - Auxiliary crane equipment - Google Patents

Abstract

Additional crane device comprises a clamping device (1), on which one end movably mounted arms (2, 2 '), and a linear hydraulic motor (3). It is also through the common link movably connected to the second ends of the arms (2, 2 ') for the purpose of their movement. The arms (2, 2 ') can also be a clamping device (1) mounted fixed and the linear hydraulic motor (3) movably connected to one end of the operating lever (5). It is through the common link pivotally connected to the other ends of the arms (2, 2 '). At the other end of the arms (2, 2 ') and at the other end of the operating lever (5) is rotatable mounted a clamping member (4). A linear hydraulic motor (3) can be a clamping device (1) is movably attached also through the cross beam (7) on the arms (2, 2 ') and the arms (2, 2') fixedly secured to the clamping device (1) can be reinforced with braces (6 , 6 ').

Description

The technical solution relates to a replaceable crane attachment especially designed for excavators, loaders and excavators.

BACKGROUND OF THE INVENTION

Various mechanisms, such as cranes and crane cranes, are used to lift, lower, place the material in place and move it. However, using such machines is expensive, time-consuming and logistic-intensive. Moreover, it is not always possible to use crane services, given the limited space in which they should be used.

With the advent of more modern construction mechanisms, however, the possibility of their multifunctional deployment has been provided by using simplified crane equipment on loaders, excavators and backhoe loaders in the form of attachments. Simplified crane attachments offer the possibility of arm extension and thus achieve more attractive parameters than those that a construction machine can achieve in material handling.

Existing additional crane mechanisms use only a rigid structure, a structure with a rectilinearly variable (quasi telescopic) support arm position and also a rope-driven structure. Fixed construction devices can be attached to the loader or excavator as a changeable tool, but their location is directly dependent on the possibility of changing the positions of the arms of the excavator or loader. The quasi-telescopic arm crane, unlike a rigid device, can change its length and thus extends the travel of the clamping element. The rope gear crane has a rigid construction and the clamping element located on the steel cable can be lowered or lifted by pulleys controlled by an electric motor or a hydraulic motor.

The drawbacks of these additional crane devices are the impaired final handling and insufficient momentum required in the case of multifunctional use.

The essence of the technical solution

These drawbacks are overcome by an additional crane device with a movable member according to the present invention comprising a clamp on which the arms are movably fastened at one end as well as the linear hydraulic motor movably fastened. The linear hydraulic motor is also pivotably connected to the other end of the arms via a common joint. At this end of the arms there is also a pivotably fastened clamping element. Linear hydraulic motor provides arm movement to raise or lower the clamping element.

The arms can be movably mounted on the clamp either on its upper part or on the lower part and the linear hydraulic motor is then movably fixed to the opposite part of the clamp.

The clamps can also be fixed firmly. In this case, the linear hydraulic motor is rotatably coupled to one end of the movable lever. This lever is pivotally connected to the other end of the arms via a common joint. In this case, the clamping element is pivotally attached to the other end of the lever. The linear hydraulic motor thus ensures the movement of the lever, thereby raising or lowering the clamping element.

The arms may be rigidly fixed to either the top or the bottom of the fixture and the linear hydraulic motor may be movably mounted to the opposite or the same fixture portion.

In the case of fixed arms on the clamp, the linear hydraulic motor can be movably mounted on the clamp even over the crossbar located on the arms. Fixed arms on the clamp can also be reinforced by stiffeners firmly connected to the clamp via their other end.

The pivoting joints on the additional crane device may be, for example, pins, lugs or articulated joints. The clamping element may have a different shape, for example a hook or an eye. An additional crane device designed to lift particularly heavy loads may contain two linear hydraulic motors instead of one.

Due to the different construction machines to which the fixture is to be attached, its size and shape, as well as its attachment, must be adapted to the construction machine in question.

The support structure of the clamp may be made of bars or sheets connected in a detachable or non-detachable manner.

The device allows easier, faster and more accurate handling of suspended material, as well as lowering and lifting material otherwise from poorly accessible locations.

SK 7786 Υ1

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution is explained in more detail by means of the drawings, in which a front elevational view, a side elevation of the figure 1b and a top view of the auxiliary crane device comprising two arms operated from above by a linear hydraulic motor are illustrated in figure 1b.

Fig. 2a is a side elevation, Fig. 2b, and Fig. 2c a plan view of an additional crane device comprising two arms actuated from below by a linear hydraulic motor.

Fig. 3a is a front elevation, Fig. 3b a side view and Fig. 3c a plan view of an additional crane device comprising two arms with a lever operated from below by a linear hydraulic motor.

Fig. 4a is a front elevation, Fig. 4b a side view and Fig. 4c a plan view of an additional crane device comprising two arms with a lever operated from above by a linear hydraulic motor.

Fig. 5a is a front elevation, Fig. 5b, and Fig. 5c a plan view of an additional crane device comprising two stiffeners reinforced with a lever operated from above by a linear hydraulic motor.

Fig. 6a is a plan view, Fig. 6b, and Fig. 6c a plan view of an additional crane device comprising two stiffeners reinforced with a lever operated from below by a linear hydraulic motor.

Fig. 7a is a front elevation, Fig. 7b, and Fig. 7c a plan view of an additional crane device comprising two stiffeners reinforced with a lever operated from below by a linear hydraulic motor clamped between the arms.

EXAMPLES

Example 1

The auxiliary crane device consists of a clamp X on which the arms 2, Z are fixed in the lower part by means of the pin connections. The other ends of these arms 2, Z are connected via a common pin connection to a linear hydraulic motor 3 At the same time, a clamping element 4, which is hook-shaped (Figure 1a, Figure 1b, Figure 1c), is fixed between the ends of the arms 2, Z via a pin joint. By means of the linear hydraulic motor 3, the arms 2, Z are moved, thereby raising or lowering the clamping element 4.

Example 2

A crane attachment as in Example 1, except that the arms 2, Z are mounted at the top of the clamp X, the linear hydraulic motor 3 is fixed to the bottom of the clamp X and the clamping element 4 is eye-shaped (Figure 2a, Figure 2b, 2c).

Example 3

The crane attachment consists of a clamp X on which the arms are fixed at the top

2, Z. The other ends of these arms 2, Z are connected to a movable lever 5 in the middle thereof by a common journal joint. The movable lever 5 is connected to a linear hydraulic motor via a pin connection at one end

3, which is fastened in the lower part of the fixture χ by means of a pin joint. At the other end of the movable lever 5, a hook-like clamping element 4 is fastened via a pin joint (Figure 3a, Figure 3b, Figure 3c). By means of a linear hydraulic motor 3, the movable lever 5 is moved, thereby raising or lowering the clamping element 4.

Example 4

The crane attachment consists of a clamp X on which the arms are fixed at the bottom

2, Z. The other ends of these arms 2, Z are connected to a movable lever 5 in the middle thereof by a common journal joint. The movable lever 5 is connected to a linear hydraulic motor via a pin connection at one end

3, which is fastened in the upper part of the fixture χ by means of a pin joint. At the other end of the movable lever 5, a hook-like clamping element 4 is fastened via a pin joint (Figure 4a, Figure 4b, Figure 4c). By means of a linear hydraulic motor 3, the movable lever 5 is moved, thereby raising or lowering the clamping element 4.

Example 5

An additional crane device as in Example 4, with the arms 2, Z additionally being reinforced by stiffeners 6 fixedly attached to the upper part of the fixture X (Fig. 5a, Fig. 5b, Fig. 5c) via a common pivot joint.

SK 7786 Υ1

Example 6

The crane attachment consists of a clamp X on which the arms 2, 2Ĺ are fixed at the lower part. The other ends of these arms 2, Z are connected to the movable lever 5 in its center by a common pivot connection. At the same time, the arms 2, Z are fastened by means of a common pivot joint by stiffeners 6, 6, fixedly fixed in the upper part of the fixture χ. The movable lever 5 is connected at one end via a pin connection to a linear hydraulic motor 3, which is fixed by means of a pin connection in the lower part of the clamp χ. At the other end of the movable lever 5, a clamping element 4, which is eye-shaped (FIG. 6a, FIG. 6b, FIG. 6c) is fastened via a pin connection. By means of a linear hydraulic motor 3, the movable lever 5 is moved, thereby raising or lowering the clamping element 4.

Example 7

The additional crane device consists of a clamp X on which the arms 2, Z are fixed in the lower part. The other ends of these arms 2, Z are connected by a joint pivot connection to the movable lever 5 in its center. At the same time, the arms 2, Z are reinforced by means of a stub joint 6 by stiffeners 6 fixedly fixed in the upper part of the fixture χ. The movable lever 5 is connected at one end to a linear hydraulic motor 3 via a pin connection. This is connected via a pin connection to a cross member 7, which is fixedly positioned between the arms 2, 2 '. At the other end of the movable lever 5, a hook-like clamping element 4 is fastened via a pin joint (Figure 7a, Figure 7b, Figure 7c). By means of a linear hydraulic motor 3, the movable lever 5 is moved, thereby raising or lowering the clamping element 4.

Industrial usability

The attachment crane can be used for easy material handling in cases where it is not possible to use a mobile or static crane. These are construction sites, temporary reloading sites, confined spaces.

PROTECTION REQUIREMENTS

Claims (3)

An additional crane device, characterized in that it comprises a clamp (1) on which the arms (2, 2 ') are movably fastened at one end and at least one linear hydraulic motor (3) which is pivotably connected to the other via a common joint. the ends of the arms (2, 2 '), for the purpose of their movement, or the arms (2, 2') are fixedly fixed to the clamp (1) and at least one linear hydraulic motor (3) is rotatably connected to one end of the movable lever (5) which is pivotally connected to a second end of the arms (2, 2 ') via a common joint, wherein a clamping element (4) is pivotably mounted at the other end of the arms (2, 2') or at the other end of the movable lever (5). Attachment crane according to claim 1, characterized in that the at least one linear hydraulic motor (3) is movably fixed to the clamp (1) via a cross-member (7) on the arms (2, 2 '). An additional crane device according to claim 1 or 2, characterized in that the arms (2, 2 ') fixed to the clamp (1) are reinforced by stiffeners (6, 6'). 7 drawings