KR100985028B1 - a lower frame mounting structure of a forestry machine equipment and an excavator - Google Patents

Abstract

The present invention relates to a lower frame mounting structure for forest equipment and excavators, and in particular, having a top and bottom and a plurality of arms, the arm is connected to the left and right track chassis, the center side is the turning joint mounting plate is mounted In the forest equipment and excavator lower frame mounting structure having a lower frame, having a side wall extending upwardly from the center side of the upper surface of the lower frame integrally formed with the lower frame, the turning joint mounting inside the side wall A base frame on which the plate is detachably mounted; According to the present invention characterized in that it comprises a protruding from the inner circumferential surface formed in the side wall, the inner support for supporting the turning joint mounting plate, it is easy to remove, attach and detach the turning joint mounting plate during assembly At the same time, there is an advantage that the effect is very excellent, such as collision between the hydraulic drive parts such as hydraulic cylinders and interference with the lower frame by the inner flange and the interference prevention jaw in the base frame.

Tree Harvesters, Excavators, Base Frames, Bumps

Description

Lower frame mounting structure of a forestry machine equipment and an excavator

1 is a perspective view schematically showing a structure of a lower frame mounting portion in which a turning joint plate is mounted according to the present invention;

Figure 2 is a plan view of the lower frame mounting structure according to the present invention,

Figure 3 is an exploded perspective view showing a state in which the turning joint plate is mounted on the lower frame mounting portion, according to an embodiment of the present invention,

4 is a cross-sectional view taken along the line A-A shown in FIG.

Figure 5 is a schematic diagram showing the use of the forest equipment with forest equipment and the lower frame mounting portion for the excavator.

Explanation of symbols used in the main part of the drawing

1: upper turning body 2: lower running body

7: Upper frame 8: Tilt device

10: Subframe 11: Baseframe

12: Arm 14: Turning Joint Mounting Plate

15: inner flange 16: anti-jamming jaw

The present invention relates to the structure of the lower frame mounting portion for forest equipment and excavator, in particular, when the swing bearing is installed on the mounting portion formed in the center of the lower frame, the turning joint mounting plate is easily detached from the inside of the mounting portion and at the same time prevents interference by the insert unit. It relates to a heavy-duty underframe mounting structure improved to be.

Conventionally, forestry heavy equipment such as tree harvesters and tree fellers is one of the forest equipment for transporting and loading after cutting or harvesting trees useful for pulp and construction materials, As an embodiment of such a forest equipment, US Patent No. 5,979,518 (1999.11.09) is equipped with an upper swing structure provided with a cab on the upper side of the lower vehicle moving the ground by the track, mounted on one side of the upper swing structure and the cab A tree harvesting device having a chain saw working device capable of simultaneously carrying out grapple and cutting operations at the distal end of a conventional boom is disclosed. In addition, U.S. Patent No. 4,243,258 (January 6, 1981) Tree harvesters for efficiently loading wood are disclosed.

In general, the lower running body of the conventional forest equipment or excavator is connected to the track chassis is installed on both sides of the lower frame, the mounting portion is provided so that the upper pivot can be pivotally mounted at approximately the center point of the lower frame, Swing bearings, tilting devices, turning joints and hydraulic equipment are complex combinations.

For example, the lower frame of the excavator is composed of a track chassis and an arm by applying steel material to maintain structural rigidity, and the swing bearing and turning joint are supported by the base frame through a mounting part formed at the center side of the lower frame. have.

In addition, forest equipment, such as tree harvesters and tripellers, moves the ground such as hills and slopes that are steep incline, increasing the load and impact on the lower frame and risking the rollover due to the slope of the ground. Because of this existence, a hydraulic drive device for tilting the upper swing body at a predetermined angle or adjusting the leveling is separately provided on the lower frame.

However, the conventional forest equipment and excavator lower frame mounting portion is limited to the load supporting for swing bearing coupling since it simply considers the swinging operation of the upper swing structure on the base frame, thereby mounting the turning joint mounting plate or hydraulic drive on the mounting portion. In order to solve the problem, it is necessary to separately design the structure such as removing the welding part.

In addition, turning joints, swing bearings, and hydraulic drives installed on the mounting parts need periodic maintenance and maintenance as necessary.However, if the swing bearings and turning joint mounting plates are simply fixed to the upper surface of the lower frame, And it is difficult to remove and attach for maintenance, as well as the interference between the components occur inside the mounting portion, there was a problem causing damage or abnormal operation.

Therefore, the present invention is to solve the above problems,

It is an object of the present invention to facilitate the removal and attachment of the turning joint mounting plate inside the mounting portion formed in the lower frame, and the lower frame mounting structure for the forest equipment and excavator that can efficiently perform the disassembly and assembly of the hydraulic hose and the turning joint To provide.

Another object of the present invention is to provide a lower frame mounting structure for forest equipment and excavators that can prevent interference between each component when installing a hydraulic drive unit such as a turning joint mounting plate or a hydraulic cylinder in the mounting portion.

In order to achieve the above object, the present invention

In the forest equipment and excavator lower frame mounting structure having an upper surface and a bottom and a plurality of arms, the arms are connected to the left and right track chassis, the lower side is mounted on the center of the turning joint mounting plate,

A base frame extending upwardly from a center side of an upper surface of the lower frame and having a side wall integrally formed with the lower frame, the turning joint mounting plate being detachably seated inside the side wall;

And an inner flange protruding from an inner circumferential surface formed inside the sidewall and supporting the turning joint mounting plate, and comprises a lower frame mounting structure for forest equipment and an excavator.

The present invention is characterized in that the lower frame mounting structure for forest equipment and excavators including an interference prevention projection protruding from the inner circumferential surface formed inside the side wall on one side of the inner flange.

In addition, the present invention comprises the inner flange is composed of a radially spaced first inner flange and a second inner flange, the interference prevention jaw is formed between each of the first inner flange and the second inner flange spaced forest It features a bottom frame mount structure for equipment and excavators.

In addition, the first inner flange and the upper portion of the second inner flange is characterized in that the forest frame and the lower frame mounting structure for the excavator consisting of a plurality of support brackets fixed to the bottom surface of the turning joint mounting plate.

 In addition, the arm consists of a first arm, a second arm, a third arm and a fourth arm, respectively, to support the track chassis, wherein the interference prevention jaw is formed adjacent to the first arm and the fourth arm, The first inner flange and the second inner flange are characterized in that the lower frame mounting structure for forest equipment and excavators formed adjacent to the second and third arms, respectively.

In addition, the inner flange and the interference prevention jaw is provided with a concentric circle having a different diameter with respect to the inner circumference of the base frame, characterized in that the forest frame and the lower frame mounting structure for the excavator is configured adjacent to the bottom of the lower frame.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the lower frame mounting portion structure for forest equipment according to the present invention.

1 is a perspective view schematically showing a structure of a lower frame mounting portion in which a turning joint plate is mounted according to the present invention, FIG. 2 is a plan view of a structure of a lower frame mounting portion according to the present invention, and FIG. 3 is according to an embodiment of the present invention. 4 is an exploded perspective view illustrating a state in which a turning joint plate is mounted on a lower frame mounting unit, FIG. 4 is a cross-sectional view taken along line AA of FIG. 2, and FIG. 5 is a view illustrating a state of use of the forest equipment equipped with a lower frame mounting unit for forest equipment and an excavator. One schematic diagram.

In the detailed description of the invention, as shown in Fig. 5, a work device 4 comprising an upper swinging structure 1 and a lower traveling body 2, a track chassis 3, a bucket or a header for a logging operation. , A tilting device installed for leveling the equipment between the cab 5, the boom 6, the upper frame 7 formed below the upper swing body 1 and between the upper frame 7 and the lower running body 2 ( 8) and the like are the same as the conventional heavy equipment such as excavators and tree harvesters, and will be described using the same symbols.

Referring to the drawings, the structure of the lower frame mounting portion for forest equipment and excavator according to the present invention is

It has an upper surface 10a and a lower surface 10b and a plurality of arms 12, which are connected to the left and right track chassis 13a and 13b, and on the center side a turning joint mounting plate 14 In the forest equipment and excavator lower frame mounting structure having a lower frame 10 is mounted,

A side wall 11a extending upward from the center side of the upper surface 10a of the lower frame 10 and integrally formed with the lower frame 10, and a turning joint mounting plate inside the side wall 11a A base frame 11 on which 14 is detachably mounted;

An inner flange 15 protruding from an inner circumferential surface formed in the side wall 11a and supporting the turning joint mounting plate 14 is configured.

In addition, the inner flange 15 is formed by forming an interference preventing jaw 16 protruding from an inner circumferential surface formed inside the side wall 11a.

In the structure of the forest equipment and excavator lower frame mounting portion according to the present invention, the inner flange 15 is composed of a first inner flange (15a) and a second inner flange (15b) formed radially spaced apart from each other, Preferably, the interference preventing projections 16a and 16b are formed between the spaced apart portions of the first inner flange 15a and the second inner flange 15b.

In addition, a plurality of support brackets 17 are fixed to the bottom surface of the turning joint mounting plate 14 on the first inner flange 15a and the second inner flange 15b.

The support bracket 17 has a supporting portion 18 attached to the bottom surface of the turning joint mounting plate 14, and the turning joint mounting plate 14 when the fixing member 19 is coupled to each of the fastening holes. Is supported by the support bracket 17 and is fixedly maintained at a predetermined depth inside the side wall 11a of the base frame 11.

 In addition, the arms 12 respectively support the first and second arms 12a and second arms to support the front and rear upper portions of the left track chassis 13a and the right track 13b chassis that constitute the track chassis 13. 12b, a third arm 12c and a fourth arm 12d, wherein the interference preventing jaws 16a and 16b are formed adjacent to the first arm 12a and the fourth arm 12d, respectively. Preferably, the first inner flange 15a and the second inner flange 15b are formed adjacent to the second arm 12b and the third arm 12c, respectively.

4, the inner flanges 15a and 15b and the interference preventing jaws 16a and 16b respectively have concentric circles having different diameters with respect to the inner circumference of the base frame 11. It is formed to have, and is configured to be adjacent to the bottom surface (10b) of the lower frame (10). The inside of the base frame 11 forms a grease bath 23a on the upper part of the turning joint mounting plate 14 and a unit interior chamber 23b on the lower part of the base frame 11.

In the present invention, it will be apparent to those skilled in the art that a sealing element for maintaining a lubricant such as grease may be further configured inside the base frame 11 described above.

In the configuration of the present invention, each of the inner flanges 15a and 15b and the interference preventing projections 16a and 16b are shown to be spaced apart from each other at 180 degree intervals, but such an arrangement angle is determined by the specifications of the equipment or the unit fixing part 23b. Can be deformed in various ways according to the structure, and the interference prevention jaw 16a on one side is adjacent to the third arm 12c and the interference prevention jaw 16b on the other side is installed adjacent to the second arm 12b. It is possible.

In the description of the present invention, reference numeral 14a denotes a turning joint coupling portion formed at the center side of the turning joint mounting plate 14, and reference numeral 21 denotes a left track chassis 13a and a right side formed on both sides of the lower frame 10. An idle roller mounting portion provided at the front side of the track chassis 13b, reference numeral 22 is a sprocket mounting portion provided at the rear side of the left track chassis 13a and the right track chassis 13b.

Hereinafter, the operation and effect of the lower frame mounting structure for the forest equipment and excavator according to the present invention.

The lower frame mounting portion structure for the forest equipment according to the present invention is the turning joint mounting plate 14 by the coupling of the fixing member 19 to facilitate the disassembly and assembly of the turning joint and hydraulic hose, etc. in the base frame 11. It is charged to a predetermined depth and seated on the support 20 of the support bracket 17.

That is, the turning joint mounting plate 14 is charged to the bottom surface 10b side of the lower frame 10 along the inner circumferential surface formed inside the side wall 11a of the base frame 11 during assembly, and then the fixing member 19 is fastened. By fastening to the support bracket 17 through the ball 20, the load of the turning joint mounting plate 14 is supported by the plurality of support brackets 17 and the respective inner flanges 15a and 15b.

At this time, the inside of the base frame 11 is formed with a grease bath (23a) in the upper portion of the mounting plate 14, the grease for the swing bearing lubrication grease is usually introduced into the grease bath (23a), the mounting plate 14 The interior of the base frame 11 formed between the lower portion of the lower frame 10 and the bottom surface 10b of the lower frame 10 forms a unit fixing chamber 23b so that a hydraulic cylinder (not shown) may be seated.

Accordingly, the lower frame mounting structure for the forest equipment and the excavator according to the present invention supports the turning joint mounting plate 14 inside the base frame 11 and at the same time installs a hydraulic cylinder compactly on the unit fixing chamber 23b. Can be.

In addition, when the hydraulic cylinder or the like is installed in the unit fixing chamber 23b, the interference preventing jaws 16a and 16b respectively support the hydraulic cylinder 24 in a protruding state from the inner circumference of the base frame 11 in a predetermined section. Accordingly, interference does not occur on the inner circumferences of the lower frame 10 and the base frame 11.

In particular, the interference preventing jaw 16a on one side supports the hydraulic cylinder 24 adjacent to the first arm 12a, and the interference blocking jaw 16b on the other side is adjacent to the fourth arm 12d. ), The plurality of hydraulic cylinders 24 can be installed in the unit fixing chamber 23b so that they do not collide with each other or cause interference.

On the other hand, in order to install the tilting device 11 on the upper part of the lower frame 10 and the base frame 11 during disassembly assembly simply disengage the fixing member 19 bolted coupled to disassemble the turning joint mounting plate 14 The joint mounting plate 14 may be disassembled, and the maintenance and maintenance of components such as the hydraulic cylinder 24 or the hydraulic piping installed in the unit fixing chamber 23b may be performed quickly.

According to various embodiments of the present invention, the inner flanges 15a and 15b and the interference preventing jaws 16a and 16b are not disposed at intervals of 180 degrees in the base frame 11 constituting the lower frame mounting portion. The operation principle is the same even if the interference prevention jaw 16a on one side is disposed adjacent to the third arm 12c and the other interference prevention jaw 16b is adjacent to the second arm 12b. Therefore, detailed description is omitted.

The description of the structure of the lower frame mounting portion for forest equipment and excavator according to the present invention described above is to explain the self invention having ordinary knowledge in the technical field to which the present invention belongs can be easily carried out, and thus the present invention The spirit and scope of the claims are not limited.

Above, the lower frame mounting structure of the forest equipment and the excavator according to the present invention is easy to remove and attach the turning joint mounting plate when disassembling and at the same time the hydraulic drive parts such as hydraulic cylinders by the inner flange and the interference bumps in the base frame The effect is very excellent, such as collision between each other and interference with the lower frame is prevented.

Claims (6)

In the forest equipment and excavator lower frame mounting structure having an upper surface and a bottom and a plurality of arms, the arms are connected to the left and right track chassis, the lower side is mounted on the center of the turning joint mounting plate, A base frame extending upward from a center side of the upper surface of the lower frame, the side frame being integrally formed with the lower frame, and having a turning joint mounting plate mounted therein; And an inner flange protruding from an inner circumferential surface formed in the side wall and supporting a lower portion of the turning joint mounting plate. The inner flange includes a first inner flange and a second inner flange radially spaced inside the sidewall, and an interference prevention jaw is configured between each of the first inner flange and the second inner flange. Underframe mounting structure for forest equipment and excavators. delete delete The method according to claim 1, And a plurality of support brackets fixed to a bottom surface of the turning joint mounting plate on the first inner flange and the second inner flange, respectively. The method according to claim 1, The arm is composed of a first arm, a second arm, a third arm, and a fourth arm, respectively, to support the track chassis, wherein the anti-jamming jaw is formed adjacent to the first and fourth arms, and the first arm An inner flange and a second inner flange are formed adjacent to the second arm and the third arm, respectively, characterized in that the lower frame mounting structure for the forest equipment and excavator. The method according to claim 1, Forest equipment, characterized in that the front end of each of the inner flange and the interference prevention jaw is formed to extend to form a concentric circle having a different diameter with respect to the inner circumference formed in the base frame, adjacent to the bottom of the lower frame and Underframe mount construction for excavators.

Images