CN106006435A - Skidder cable rack assembly - Google Patents

Abstract

The invention discloses a cable frame assembly of a skidder, comprising a first guide shaft assembly supporting a steel wire rope and assisting in limiting the movement space of the steel wire rope, a second guide shaft assembly and a third guide shaft assembly assisting in limiting the movement space of the steel wire rope , and the cable frame for installing each assembly; there are two second guide shaft assemblies, which are perpendicular to the first guide shaft assembly and located at the front of the first guide shaft assembly; the third guide shaft assembly It is located at the front of the first guide shaft assembly, parallel to and higher than the first guide shaft assembly; when the steel wire rope is retracted, the steel wire rope passes through the space defined by the second guide shaft assembly and the third guide shaft assembly. Pass through and press on the first guide shaft assembly to move. The arrangement structure of the three assemblies of the present invention can make the steel wire rope work more efficiently in a reasonable space range, thereby preventing the wire rope from being stuck due to excessive sliding range and affecting the working reliability of the whole machine.

Description

A skidder cable frame assembly

technical field

The invention relates to a skidder, in particular to a cable frame assembly of a skidder, which belongs to the field of forestry machinery.

Background technique

The skidder is a kind of tractor, which is mainly used to pull and drag the logs in the forest to the destination. Due to the large diameter, long size and heavy weight of the log, the skidder needs to use the hook at the end of the wire rope to bind the log when it is working, and then pull it. The steel wire rope needs to be supported by the cable frame, which is equivalent to a pulley in function, and the steel wire rope passes through the cable frame to lift and pull the log. When the wire rope hangs the log, the skidder needs to release the rope, and when the log is hung, it needs to take the rope. No matter whether the rope is received or released, the steel wire rope is all pressed on the cable rack.

When the wire rope is retracted, it will be loaded rapidly, and the wire rope will be tensioned and straightened. The skidder can pull the bundled logs to the tail of the skidder through the rope retraction action of the wire rope, and further lift the wire rope to lift the logs to ensure One end of the log does not touch the ground and leans against the machine, and the other end touches the ground so that it is pulled forward by the whole machine. When the whole machine is turning and running, the steel wire rope will slide left and right supported by the cable frame due to the rotation of the log, but the steel wire rope cannot be stuck. Once the sliding distance is too large, the steel wire rope will easily get stuck in the groove, making it difficult to return. At the same time, the surface of the steel wire rope will be damaged, affecting the effect of the entire traction and dragging, and affecting the service life of the steel wire rope. Therefore, the cable frame that supports the steel wire rope becomes a very critical structural assembly. The traction working condition is different from the steel wire rope of the crane. In the working condition, only one end of the log does not touch the ground, and the other end touches the ground. When the wire rope is retracted and unwound, it must not only ensure complete or close to pure rolling, but also allow and restrict the left and right lateral sliding movement of the wire rope, and also restrict the wire rope from moving upward. more movement space, while reducing its wear and tear. For the skidder cable frame, it is necessary to ensure the unwinding and receiving action of the steel wire rope, and to reasonably limit the movement space of the steel wire rope in each direction. The requirements for the supporting structure of the steel wire rope are relatively complicated, and there is currently a lack of such a structural assembly.

Contents of the invention

Aiming at the above-mentioned problems in the prior art, the present invention provides a cable frame assembly for skidders, which ensures the unwinding and retrieving actions of the steel wire rope, and at the same time reasonably limits the space for the steel wire rope to move in all directions.

In order to achieve the above object, the technical solution adopted by the present invention is: a skidder cable rack assembly, including a first guide shaft assembly that supports the steel wire rope and assists in limiting the movement space of the steel wire rope, and a second guide shaft assembly that assists in limiting the movement space of the steel wire rope assembly and the third guide shaft assembly, and the cable racks for installing each assembly; there are two second guide shaft assemblies, which are perpendicular to the first guide shaft assembly and located in front of the first guide shaft assembly part; the third guide shaft assembly is located at the front of the first guide shaft assembly, parallel and higher than the first guide shaft assembly; when the wire rope is retracted, the wire rope passes from the second guide shaft assembly and the third guide shaft assembly Pass through the space defined by the guide shaft assembly and press on the first guide shaft assembly to move.

Further in the present invention, the first guide shaft assembly includes a first pin shaft and a bolt, the second guide shaft assembly includes a second pin shaft, and the third guide shaft assembly includes a third pin shaft; the first pin shaft, Both the second pin shaft and the third pin shaft can rotate around their own axes.

Further in the present invention, the cable rack includes two vertical plates on which the first guide shaft assembly is installed, two upper plates on which the third guide shaft assembly is installed, two horizontal plates on which the second guide shaft assembly is installed, two An outer side plate is used to fix the fixed block of the first pin; the horizontal plate, the vertical plate, the upper plate, the side plate and the fixed block form a rigid frame structure by welding or bolting.

Further in the present invention, the first pin shaft is a cylinder with variable cross-section, and the diameter of the cross-section gradually decreases from both ends to the middle.

Further in the present invention, the first guide shaft assembly, the second guide shaft assembly, and the third guide shaft assembly are fixedly connected to the cable frame by bolts.

In a further aspect of the present invention, the two horizontal plates are provided with slots for accommodating steel wire ropes.

Owing to adopting above-mentioned technical scheme, the advantage of patent of the present invention is:

1. The cable rack assembly of the present invention is simple in structure, good in manufacturability, and convenient to manufacture;

2. The three guide shaft assemblies allow the steel wire rope to achieve approximately pure rolling in an effective space, ensuring work efficiency and reliability;

3. The steel wire rope is pressed on the first pin shaft, and the variable cross-section cylindrical shape of the first pin shaft can reduce the lateral displacement of the steel wire rope and make the steel wire rope gradually return to the neutral position;

4. The skidder cable frame assembly of the present invention has low maintenance cost. When the steel wire rope works under heavy load for a long time, the installation bolts may become loose, and the three assemblies can be fixed reliably by pre-tightening the bolts;

5. The cable rack assembly of the present invention can reduce the wear of the steel wire rope, prolong the service life of the steel wire rope, and reduce the use cost;

6. The skidder has high working efficiency. This structure can prevent the wire rope from being stuck in all directions, and can automatically return to its position, so the working downtime is shortened and the efficiency is improved;

7. The installation and disassembly of each assembly of the skidder cable frame is relatively convenient.

Description of drawings

Fig. 1 is a structural front view of the present invention;

Fig. 2 is the structure left view of the present invention;

Fig. 3 is a structural top view of the present invention;

Fig. 4 is the rear view of structure of the present invention;

Fig. 5 is a front perspective view of the present invention;

Figure 6 is a rear perspective view of the present invention;

Among the figure: 1, the first guide shaft assembly, 2, the second guide shaft assembly, 3, the third guide shaft assembly, 4, the cable frame, 11, the first pin shaft, 12, the bolt, 21, the second Bearing pin, 31, the third bearing pin, 41, vertical plate, 42, horizontal plate, 43, upper plate, 44, side plate, 45, fixed block.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, Figure 2 and Figure 3, a skidder cable frame assembly of the present invention includes a first guide shaft assembly 1 that supports the steel wire rope and assists in limiting the movement space of the steel wire rope, and a second guide shaft assembly 1 that assists in limiting the movement space of the steel wire rope. The guide shaft assembly 2 and the third guide shaft assembly 3, and the cable frame 4 for installing each assembly; the second guide shaft assembly 2 has two, all perpendicular to the first guide shaft assembly 1, located in the first guide shaft assembly The front part of the shaft assembly 1; the third guide shaft assembly 3 is located at the front part of the first guide shaft assembly 1, parallel and higher than the first guide shaft assembly 1; The shaft assembly 2 and the third guide shaft assembly 3 pass through the space defined, and press on the first guide shaft assembly 1 to move.

Wherein, as shown in Fig. 4 and Fig. 5, the first guide shaft assembly 1 includes the first pin shaft 11 and the bolt 12, the second guide shaft assembly 2 includes the second pin shaft 21, and the third guide shaft assembly 3 includes The third pin shaft 31 ; the first pin shaft 11 , the second pin shaft 21 and the third pin shaft 31 can all rotate around their own axes.

As shown in Figure 6, the cable rack 4 includes two vertical plates 41 for installing the first guide shaft assembly 1, two upper plates 43 for installing the third guide shaft assembly 3, and two for installing the second guide shaft assembly 2 The horizontal plate 42, two outer side plates 44, are used to fix the fixed block 45 of the first pin shaft 11; the horizontal plate 42, the vertical plate 41, the upper plate 43, the side plate 44 and the fixed block 45 are connected by welding or bolts and other ways to form a rigid frame structure. The first guide shaft assembly 1 , the second guide shaft assembly 2 , and the third guide shaft assembly 3 are fixedly connected to the cable frame 4 through bolts 12 .

On the basis of the above structure, as shown in FIG. 4 , the first pin shaft 11 of the present invention adopts a variable-section cylinder, and the cross-sectional diameter gradually decreases from both ends to the middle. This structure can reduce the lateral displacement of the steel wire rope, and make the steel wire rope gradually return to the neutral position, and has the function of automatic return, so the working downtime is shortened and the efficiency is improved. In addition, the two horizontal plates 42 of the present invention are also provided with slots for accommodating steel wire ropes.

When the steel wire rope is retracted and unwound, the steel wire rope can be close to pure rolling, and the first pin shaft 11 in the first guide shaft assembly 1 can realize high-speed forward and reverse rotation relative to the cable rack 4, that is, a very small The frictional force generated by the positive pressure of the wire rope can make the first pin shaft 11 rotate flexibly, so that when the rope is retracted and unwound, the wire rope is close to pure rolling, which reduces the wear of the wire rope and prolongs the service life. In the same way, when the steel wire rope is too long due to the unwinding of the rope, or when it moves upwards, it will press against the third pin in the third guide shaft assembly 3 while pressing the first pin shaft 11 in the first guide shaft assembly 1. shaft 31, the high-speed and flexible rotation of the first pin shaft 11 and the third pin shaft 31 can also ensure that the steel wire rope is close to pure rolling and reduce the wear of the steel wire rope.

When the whole machine is turning, the steel wire rope is allowed to slide left and right. When it slides for a certain distance, the steel wire rope will bear against the second pin shaft 21 in the second guide shaft assembly 2 on both sides, and the high-speed rotation of the second pin shaft 21 Approximate pure rolling of the wire rope can also be achieved. After the logs rotated, the wire rope would leave the second bearing pin 21, and the variable-section cylinder of the first bearing pin 11 could apply a certain lateral reaction force to the wire rope, so that the wire rope would gradually get back to the neutral position.

The layout structure of the three assemblies can make the wire rope work more efficiently in a reasonable space range, thereby preventing the rope from being stuck due to excessive sliding range of the wire rope and affecting the reliability of the whole machine.

Certainly, the above-mentioned embodiments are only preferred solutions of the present invention, and are not limited thereto. On this basis, targeted adjustments can be made according to actual needs, so as to obtain different implementation modes. Since there are many ways of possible realization, it is not necessary to give examples one by one here.

Claims (6)

1. A cable rack assembly for a skidder, characterized in that it includes a first guide shaft assembly (1) that supports the wire rope and assists in limiting the movement space of the wire rope, and a second guide shaft assembly (2) that assists in restricting the movement space of the wire rope ) and the third guide shaft assembly (3), as well as the cable frame (4) for installing each assembly; there are two second guide shaft assemblies (2), which are perpendicular to the first guide shaft assembly (1 ), located at the front of the first guide shaft assembly (1); the third guide shaft assembly (3) is located at the front of the first guide shaft assembly (1), parallel to and higher than the first guide shaft assembly into (1); when the wire rope is retracted, the wire rope passes through the space defined by the second guide shaft assembly (2) and the third guide shaft assembly (3), and is pressed against the first guide shaft assembly (1) Up sports. 2. The cable frame assembly of skidder according to claim 1, characterized in that, the first guide shaft assembly (1) includes a first pin shaft (11) and a bolt (12), the second The guide shaft assembly (2) includes the second pin shaft (21), the third guide shaft assembly (3) includes the third pin shaft (31); the first pin shaft (11), the second pin shaft (21) and The third pin shaft (31) can rotate around its own axis. 3. A cable frame assembly for skidder according to claim 2, characterized in that, the cable frame (4) includes two vertical plates (41) on which the first guide shaft assembly (1) is installed, Two upper plates (43) for installing the third guide shaft assembly (3), two horizontal plates (42) for installing the second guide shaft assembly (2), and two outer side plates (44) for The fixed block (45) for fixing the first pin shaft (11); the horizontal plate (42), the vertical plate (41), the upper plate (43), the side plate (44) and the fixed block (45) are connected by welding or bolts, etc. form a rigid frame structure. 4 . The cable frame assembly of a skidder according to claim 2 , wherein the first pin shaft ( 11 ) is a cylinder with variable cross-section, and the cross-sectional diameter gradually decreases from both ends to the middle. 5. The cable frame assembly of skidder according to claim 1, characterized in that, the first guide shaft assembly (1), the second guide shaft assembly (2), the second Three guide shaft assemblies (3) are fixedly connected on the cable rack (4) by bolts (12). 6. The cable frame assembly of skidder according to claim 3, characterized in that, there are slots on the two horizontal plates (42) for accommodating steel wire ropes.