KR19990012125U - Excavator Tool Changer of Excavator - Google Patents

Abstract

The present invention is an excavator's excavator tool that is suitable for easily clamping or unclamping an excavator tool such as a rock crushing tool that crushes soil or a rock crushing tool that breaks up soil by using a hydraulic mechanism. An exchange apparatus, comprising a pin support block (41) having a semicircular groove (41a) in close contact with a circumferential surface of a first excavator tool side pivot (30) provided in an excavator tool (150) at one end of a clamp frame (50). And a C-shaped clamp 42 detachably mounted on the second drilling tool side pivot 32 so as to be rotatable by the first clamp side pivot 61 of the clamp frame 50. The pivoting end of the clamp 42 is installed on the other end of the fluid cylinder 70, one end of which is rotatably coupled to the clamp frame 50 by a tube support pin 62. Rotatable by On the other hand, the second clamp side pivot 64 and the third centered on the first excavator side pinhole 37 and the second excavator side pinhole 38 formed in the arm 36 of the excavator 35 are respectively. The clamp side pivot 65 is formed.

Description

Excavator Tool Changer of Excavator

The present invention relates to an excavator tool exchange device of an excavator, and more particularly, to an excavator arm using a hydraulic mechanism for an excavator tool, such as a rock crushing tool that hits a bucket or a rock, which is coupled to the excavator to dig soil. Excavator tool exchanging device adapted to be easily clamped or unclamped on

A general excavator has an arm 12 pivotally connected to the tip of a buoy 11 installed on the body frame 10 of the excavator, as shown in FIG. 1, and a bucket () at the tip of the arm 12. Excavation tools 15 such as 14a) and rock crushing tools 14b were detachably provided.

The buoy 11 as described above is pivoted up and down by the buoy cylinder 16 connecting the body frame 10 and the buoy 11, the arm 12 is the buoy 11 and the arm 12 It turned up and down by the arm cylinder 17 to connect, and the excavation tool 15 was comprised so that it might turn in and out by the bucket cylinder 18. As shown in FIG.

On the other hand, such as the excavator 20 is used for other purposes in addition to the purpose of digging the ground, the typical thing is to crush the rock by attaching a rock crushing tool.

For this multipurpose operation, the first thing to be done is exchanging an excavation tool such as a bucket or a rock crushing tool. For such an exchange operation, first, the arm 12 and the buoy 11 are lowered, and then the bucket 14a and the arm 12 The pins (21) and (22) are removed to separate the bucket (14a) and then formed in the excavator-side pinhole (23) (24) and the rock crushing tool (14b) formed in the excavator (20). The centers of the digging tool side pinholes (25) and (26) coincide with each other, and then separates the separated pins (21) and (22) into the excavator side pinholes (23) and (24) and the digging tool side pinholes (25, 26) The exchange was being done through the process.

However, in order to remove the pins 21 and 22 inserted into the excavator-side pinholes 23 and 24 and the excavator tool-side pinholes 25 and 26 in the exchanging of the tool, such pins 21 ( Since the separating shaft and the hitting tool in contact with the cross section of 22) have to be worked by several workers for a long time, the replacement work is very inconvenient, and the work is delayed by the replacement work. .

The present invention has been made to solve the above problems, the object of the present invention is to provide an excavation tool exchange device of the excavator that can be replaced more quickly and easily the excavation tool, such as a bucket or rock crushing tools used in the excavator.

In order to achieve the object of the present invention, a pin support block having a semicircular groove that is in close contact with the circumferential surface of the first drilling tool side pivot installed in the excavating tool is installed at one end of the clamp frame, the second side of the second drilling tool side The C-shaped clamp, which is detached and mounted on the pivot, is rotatably installed on the clamp frame by the first clamp side pivot, and the other end is connected to a fluid cylinder in which one end is rotatably coupled to the clamp frame by a tube support pin. The rotation of the egg clamp is pivotally installed by the rod support pins, while the second clamp side pivot and the second clamp side are respectively centered on the first excavator side pinhole and the second excavator side pinhole formed on the arm of the excavator. 2 Clamp side pivot is provided to provide an excavation tool changer for the excavator.

1 is a side view schematically showing the structure of a conventional excavator

Figure 2 is an exploded perspective view showing the configuration of an excavation tool exchange apparatus according to the present invention

Figure 3 is a partially exploded perspective view showing the configuration of an excavation tool exchange apparatus according to the present invention

Figure 4 is an exploded perspective view showing the coupling relationship between the excavator tool and the excavator tool exchanger according to the present invention

Figure 5 is a side view showing a state in which the bucket is installed on the arm of the excavator by the excavator tool exchange apparatus according to the present invention

Figure 6 is an enlarged cross-sectional view of portion A of Figure 5 showing the configuration of an excavation tool exchange apparatus according to the present invention

Figure 7 is a side view showing a state in which the rock fracture tool is coupled to the arm by the excavation tool exchange device according to the present invention

Figure 8 is a perspective view showing a state in which the clamp of the excavating tool exchange device of the excavator according to the present invention

9 is a perspective view showing a state in which the clamp of the excavating tool exchange device of the excavator according to the present invention is rotated

* Description of the symbols for the main parts of the drawings *

30: first digging tool side pivot 70: fluid cylinder

41a: Semicircular groove 63: Rod support pin

41: pin support block 35: excavator

50: clamp frame 36: arm

32: second excavator tool side pivot 37: first excavator side pin hole

42 Clamp 38 Second Excavator Side Pinhole

61: first clamp side pivot 64: second clamp side pivot

62: tube support pin 65: third clamp side pivot

150: excavating tool

Figure 2 is an exploded perspective view showing the configuration of the excavation tool exchanger according to the present invention, Figure 3 is a partially exploded perspective view showing the configuration of the excavation tool exchanger according to the present invention, Figure 4 is an excavation tool exchanger according to the present invention 5 is an exploded perspective view illustrating a coupling relationship between an excavator and a bucket, and FIG. 5 is a side view illustrating a bucket installed on an arm of an excavator by an excavator tool exchange device according to the present invention, and FIG. 6 is an excavator tool exchange device according to the present invention. 5 is an enlarged cross-sectional view of the portion A of Figure 5, Figure 7 is a side view showing a rock fracture tool coupled to the arm by the excavation tool exchanger according to the present invention, Figure 8 is an excavation of an excavator according to the present invention 9 is a perspective view showing a state in which the clamp of the tool changer is opened, and FIG. 9 shows a state in which the clamp of the excavator tool exchanger of the excavator according to the present invention is rotated. As shown therein, the pin support block 41 having the semi-circular groove 41a in close contact with the circumferential surface of the first excavator tool side pivot 30 installed in the excavator tool 150 is shown in the clamp frame 50. The C-shaped clamp 42, which is installed at one end and detached and mounted on the second drilling tool side pivot 32, is rotated by the first clamp side pivot 61 of the clamp frame 50. It is possible to install but the end of the clamp 42 to the other end of the fluid cylinder 70, the one end is rotatably coupled to the clamp frame 50 by the tube support pin 62, the rod support pin 63 2nd clamp side which centers with the 1st excavator side pinhole 37 and the 2nd excavator side pinhole 38 provided in the arm 36 of the excavator 35, and being rotatably installed, The pivot 64 and the 3rd clamp side pivot 65 were formed and comprised.

The clamp frame 50 has a front panel 53 and a rear side plate 51 and 52 having a cross-sectional shape of a-shape in which corner portions are reinforced by a plurality of outer reinforcing ribs 50a, 50b and 50c. The panel 54 and the pin support block 41 are coupled to be spaced apart from each other, and the upper side plates 56 and 57 spaced apart by the space bar 55 on the upper surfaces of the lower side plates 51 and 52. In addition, a plurality of internal reinforcing ribs 58a and 58b are provided at the inner corner portions where the lower side plates 51, 52 and the upper side plates 56, 57 meet.

In addition to the function of connecting the lower side plates (51, 52), the front panel (53) also serves to support the second drilling tool side pivot (32).

The interval between the upper side plates 56 and 57 is larger than the interval between the lower side plates 51 and 52 so as to secure a space into which the arm 36 of the excavator 35 can be inserted.

The fluid cylinder 70 used, for example, a hydraulic cylinder provided with a check valve 72 to prevent the oil from flowing back on the flow path through which the oil is pumped so as to protrude the piston rod 71. 72 is rotatably installed on the lower side plate (51) (52) via a tube support pin (62), the piston rod (71) through the rod support pin (63) of the clevis portion of the clamp (42) It was rotatably installed in (42a).

On the other hand, the first clamp side pivot 61, the second clamp side pivot 64, and the third clamp side pivot 65 on the left and right side surfaces of the upper side plates 56, 57 and the lower side plates 51, 52, respectively. ), Covers 80, 81, 82 and 83 covering the end surfaces of both sides of the tube support pin 62, and the counter holes 80a and 80b formed in the covers 80, 81, 82 and 83 thereof. Thread holes 90 formed in the upper side plates 56, 57 and the lower side plates 51, 52, respectively, penetrating through (81a) (81b) (82a) (82b) (83a) and (83b). Cover bolts 90a, 91a, 92a, 93a, 94a, 95a, 96a (91), 92, 93, 94, 95, 96, and 97 respectively screwed together. 97a) was installed to prevent the first clamp side pivot 61, the second clamp side pivot 64, the third clamp side pivot 65 and the tube support pin 62 from being axially separated.

The first clamp side pivot 61, the second clamp side pivot 64, the third clamp side pivot 65, and the tube support pin 62 are the upper side plates 56, 57 and the lower side plate 51. First clamp using bushes 56h, 57h, 51h and 52h which are inserted and fixed in the bush insertion holes 56g, 57g, 51g and 52g respectively formed on the left and right sides of the 52. Partial wear of the side pivot 61, the second clamp side pivot 64, the third clamp side pivot 65 and the tube support pin 62 was prevented.

The clamp 42 has a C-shaped cross section, and has a pivot fixing hole 41a into which the first clamp side pivot 61 is inserted, and the piston rod 71 at a pivot end thereof. A clevis portion 42a in the form of an opening having a clevis pin 42b into which a rod-side bush 71k provided at the top face is positioned and into which the rod supporting pin 63 is inserted is formed.

In the drawings, reference numeral 120 denotes a bucket, 122 denotes a rock crushing tool, 124 denotes an excavator body frame, 126 denotes a buoy, 128 denotes a buoy cylinder, and 130 denotes an arm cylinder. 132 shows a bucket cylinder.

Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIG. 5, when the bucket 120 is coupled to the pin support block 41 and the clamp 42 and replaced with a rock crushing tool 122, the accompanying drawings are shown in FIG. As described above, when the oil in the cylinder tube 72 of the fluid cylinder 70 is discharged to move the piston rod 71 in the direction indicated by the arrow L in the drawing, the cylinder tube 72 and the piston rod 71 are supported by the tube support pin. The clamp 42 is pulled out at the same time as the arrow M in the drawing is slightly rotated from the drawing, and the clamp 42 is the starting point of the first clamp side pivot 61 by the pulling force of the piston rod 71. As a result, the second excavation tool side pivot 32, which is rotated in the direction indicated by the arrow N in the drawing, is concentrated in the clamp 42, is released from the clamp 42. As shown in FIG.

When the clamp frame 50 connected to the arm 36 is raised upward by controlling the pour cylinder 128, the arm cylinder 130, and the bucket cylinder 132 in the above state, the clamp frame 50 The pin support block 41 provided at the side is separated while being separated from the first drilling tool side pivot 30.

In the above state, as shown in FIG. 7, the first rocking tool 122 is installed in the semi-circular groove 41a of the pin support block 41 provided at the lower side of the clamp frame 50. When it comes in close contact with the inner side of the excavating tool side pivot 30 and then projects the piston rod 71 in the direction of the arrow K in the drawing of Fig. 9, the cylinder tube 72 and the piston rod 71 become a tube support pin. At the same time, the clamp 42 is pushed slightly while being rotated slightly in the direction of the arrow P in the drawing, and the clamp 42 starts from the first clamp side pivot 61 by the force from which the piston rod 71 protrudes. As shown in FIG. 2, the second excavating tool side pivot 32 is bitten to the front panel 53 provided on the lower side plates 51 and 52.

When the bucket cylinder 132 installed in the arm 36 of the excavator 35 is driven in the above state, the rock crushing tool 122 and the clamp frame 50 rotate from the second clamp side pivot 64 as a starting point. Done.

On the other hand, even if the excavation tool 150 other than the bucket 120 or the rock crushing tool 122, the first excavator tool side pivot 30 installed in the bucket 120 or rock crushing tool 122 And the same as the second digging tool side pivot 32, any of them can be replaced.

The present invention as described above is configured to clamp or unclamp an excavation tool such as a bucket or rock crushing tool using a fluid cylinder in the state of being installed on the arm of the excavator, so that the replacement operation can be very convenient. In addition, it has the effect of greatly shortening the working time, and furthermore, since it is configured to clamp or unclamp using a low-speed fluid cylinder, the impact on the excavator and the excavating tool can be almost eliminated, and thus their lifespan. There is also an effect that can be extended.

Claims (1)

A pin support block 41 having a semi-circular groove 41a in close contact with the circumferential surface of the first drilling tool side pivot 30 installed in the drilling tool 150 is installed at one end of the clamp frame 50, and the opposite side thereof. The C-shaped clamp 42 which is detached and mounted on the second drilling tool side pivot 32 is rotatably installed by the clamp frame 50 by the first clamp side pivot 61. 62 to pivotally install the rotation of the clamp 42 by the rod support pin 63 at the other end in the fluid cylinder 70 is rotatably coupled to the clamp frame 50 by one end 62. On the other hand, the second clamp side pivot 64 and the third clamp whose centers coincide with the first excavator side pinhole 37 and the second excavator side pinhole 38 formed in the arm 36 of the excavator 35, respectively. Excavator tool exchanger of the excavator, characterized in that formed by forming the side pivot (65).