KR200304958Y1 - Pipe Arrangement Structure for An Attachment Of Excavator - Google Patents

Abstract

The present invention has various attachment pipe structures that are connected to and mounted on an excavator, and the outer side of the excavator is based on the arms and booms of the excavator when the attachment work is performed after separating the bucket from the tip of the excavator arm according to the work situation. And an attachment pipe mounting structure separately installed and fixed to an inside thereof, wherein the pump supplies hydraulic oil to an attachment in an excavator, and a tank for storing hydraulic oil discharged from the attachment, between the pump and the tank. In a piping structure consisting of a hydraulic hose and a pipe that enable supply and discharge of hydraulic oil to an attachment, the attachment piping mounting structure has a flexible hydraulic hose welded to the outside based on the arm and the boom of the excavator. The pipe is connected to the connecting boss, and the pipe is located on the inside of the excavator arm and boom. Which are in contact is characterized by configured by tightening with a clamp.

Description

Pipe Arrangement Structure for An Attachment Of Excavator

The present invention has various attachment pipe structures that are connected to and mounted on an excavator, and the outer side of the excavator's arm and the boom when the attachment is installed after separating the bucket from the excavator's arm tip according to the working situation. And it relates to an attachment pipe mounting structure that is installed and fixed separately inside.

As shown schematically in FIG. 1, the excavator 100 is divided into an upper swinging body 401 and a lower traveling body 402, and an upper hydraulic pump 403 serving as a supply and discharge of hydraulic pressure. And a tank 404, and a bucket that operates when the arm 200 and the bucket cylinder 302 rotate when the boom 300 and the arm cylinder 301 are driven when the boom cylinder 303 is driven. 400).

As shown schematically in FIG. 2, the pipe mounting structure of the various attachments connected to and mounted on the excavator 100 according to the related art is generally an unshown attachment mounted on the tip of the arm 200 of the excavator 100. The operation of the operation is supplied by the hydraulic pressure from the hydraulic pump in the excavator 100 through the pipe 103 and the hydraulic hose 101 mounted on the upper side of the arm 200 and the boom 300 and then attached by the working pressure. Is operated, and the working pressure acted on the above-not shown attachment is again applied to the excavator 100 through the pipe 103 and the hydraulic hose 101 mounted on the arm 200 and the boom 300. In most cases, the tank is configured to be recovered to a tank in the tank.

Attachments not shown as described above are quick couplers, breakers, crushers, etc., after removing the bucket 400 from the excavator 100 to be mounted on the tip of the arm 200 to selectively work Consists of.

In detail, as a method for supplying an operating pressure for operating the attachment mounted on the tip of the arm 200 of the excavator 100 described above, an arm cylinder 301 and a bucket configured at the time of shipment of the existing excavator 100 are provided. It is fixed using the bracket 105 for fixing the hydraulic pipe 109 of the cylinder 302 and the first clamp 106, or fixed to the fixing bolt 108 using a separate second clamp 107 It is configured to be.

The bracket 105 and the first clamp 106 or the second clamp 107 for fixing the hydraulic pipe 109 are installed on both sides of the arm 200 and the boom 300 of the excavator, and the bracket 105 ) Is welded to the upper ends of the arm 200 and the boom 300, the pipe 103 is provided on the upper surface. In this case, the hydraulic pipe 109 and the attachment of the arm cylinder 301 and the bucket cylinder 302 are provided with a pipe 103 in the recessed groove of the first clamp 106 or the second clamp 107. The first clamp 106 or the second clamp 107 having the bolt groove is fastened by the fixing bolt 108 to be fixed.

However, in the prior art configured as described above, in addition to the arm cylinder and the bucket cylinder hydraulic pipe, which are the basic pipes of the excavator, the above-described various attachment pipes are required. Since there is a limit, the pipe is hit by a solid object during the operation of the excavator, the hydraulic pressure bursts, causing a great loss of life or material damage, and thereby causes a problem of lowering the efficiency of the work.

The present invention is drawn out in view of the conventional problems as described above, apart from the conventional arm cylinder and bucket cylinder hydraulic pipes, and installed and fixed to the outside and inside of the excavator based on the arm and boom of the excavator to crack the pipe during the operation of the excavator It is designed with the purpose of maximizing the efficiency of the work by preventing the risk caused by the oil leakage due to oil leakage.

The present invention as a means for achieving the above object,

A pump for supplying hydraulic oil to the attachment in the excavator, a tank for storing the hydraulic oil discharged from the attachment, and a hydraulic hose and pipe for supplying and discharging the hydraulic oil to the attachment between the pump and the tank. In the piping structure consisting of, the attachment pipe mounting structure of the flexible hydraulic hose is configured by engaging with the connection boss welded to the outside on the basis of the arm and the boom of the excavator, while the pipe is the arm and the boom of the excavator It is characterized in that it is configured by fastening with the clamp is welded on the inside on the basis of.

1 is a side view of a typical crawler excavator

Figure 2 is a schematic perspective view of the excavator attachment pipe mounting structure of the prior art

3 is a schematic perspective view of an excavator attachment pipe mounting structure according to an embodiment of the present invention;

※ Explanation of code for main part of drawing

1: excavator 2: arm

3: boom 4: bucket

5: arm cylinder 6: bucket cylinder

7: Bracket 8: First clamp

9: Hydraulic piping 10: Hydraulic hose

11: connecting teeth 12: connecting boss

13: pipe 14: clamp

15: fixing bolt 16: hole

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic perspective view of an attachment pipe mounting structure of an excavator according to an embodiment of the present invention,

As described above, the hydraulic cylinder 9 of the arm cylinder 5 and the bucket cylinder 6 configured at the time of shipment to the excavator 1 has the brackets 7 and the first on both sides of the arm 2 and the boom 3. It is configured to be fixed by the fixing bolt 15 by the clamp (8), wherein the arm by the attachment pipe mounting structure separately from the hydraulic pipe (9) of the arm cylinder (5) and the bucket cylinder (6) (2) and the pipe (13) inside the boom (3) is to be fixed by the recessed groove of the clamp (14), the clamp (14) is the arm (2) and the boom (at regular intervals) 3) It is welded inside. The hydraulic hose 10 may be configured at the point where flexibility is required in the pipe mounting structure of the excavator, and the pipe 13 may be connected to the arm 2 and the boom 3 at the fastening point of the pipe 13 and the hydraulic hose 10. The hole 16 is formed so that 13 can pass. At this time, the pipe 13 fixed by the clamp 14 welded inside the arm 2 and the boom 3 is bent toward the hole 16 and connected to the upper end of the arm 2 and the boom 3. After being connected to the boss 12, the connecting boss 12 is welded, and the hydraulic hose 10 fastened to the connecting horn 11 is configured to be connected to the connecting boss 12 to be welded.

Therefore, the piping structure of the arm cylinder 5 and the bucket cylinder 6 which are installed outside the existing arm 2 and the boom 3 does not require an attachment clamp 14, so that the arm 2 and The clamps installed on both sides of the top of the boom (3) become shorter or lower in height, so the bucket (4) is removed from the tip of the excavator. It is possible to eliminate the problem that the damage or material damage occurs and thereby reduce the efficiency of the work.

According to the above-described design, the attachment pipe mounting structure has a flexible hydraulic hose which is configured by engaging with the connecting boss welded to the outside based on the arm and the boom of the excavator, and the pipe is based on the arm and the boom of the excavator. This is a simple structure that is welded by using a clamp on the inside, so it is installed separately from the hydraulic piping of the arm cylinder and the bucket cylinder, so that the clamp length of the existing arm cylinder and the boom cylinder is shortened or the height is lowered. It is a practical design that can improve the working efficiency while eliminating the problem of big life loss or material damage caused by leakage of working hydraulic pressure due to the pipe hitting hard object.

Claims (1)

A pump for supplying hydraulic oil to the attachment in the excavator, a tank for storing the hydraulic oil discharged from the attachment, and a hydraulic hose and pipe for supplying and discharging the hydraulic oil to the attachment between the pump and the tank. In the piping structure made, The attachment pipe mounting structure is a flexible hydraulic hose is configured by engaging with the connection boss welded to the outside on the basis of the arm and the boom of the excavator, while the pipe is on the inside on the basis of the arm and the boom of the excavator An attachment pipe mounting structure for an excavator, characterized in that it is coupled to a welded clamp.