KR20000017658U - Excavator clamp - Google Patents

Abstract

The present invention relates to an excavator clamp, and more particularly, a release preventing pin for preventing the external detachment of the attachment mechanism when the attachment and detachment of various attachment mechanisms (for example, buckets or breakers, etc.), and by a pair of hooks It relates to an excavator clamp configured to be able to carry out traction and lifting operations.

The purpose of the present invention is to restrain the attachment mechanism from the attachment mechanism and the clamp by the release prevention pin, so that the continuous work is performed by preventing the safety accident at the source, and in addition to the self-function of the excavator clamp, Another object of the present invention is to provide an excavator clamp, which enables stable work even in towing operation, thereby increasing its use efficiency.

As a specific means for achieving the above object;

The connecting piece, which is the connecting means to the excavator arm, is composed of the upper part, and the rotating piece having the close contact groove and the fixed piece of the hydraulic cylinder are fixed and the fitting groove is formed at the lower part to be used as a means for mounting and detaching various attachment mechanisms with the excavator. In excavator clamps,

A release preventing pin which is screwed in the vertical direction of the close contact groove is screwed to the rotating piece, and one side of the connecting piece is integrally formed with a catch ring to prevent the release preventing pin from being separated out of the attachment mechanism by the release preventing pin. And it is achieved by having an excavator clamp configured to carry out the traction, lifting work by the engaging ring.

Description

Excavator Clamp {EXCAVATOR CLAMP}

The present invention relates to a clamp for an excavator, and more particularly, a release preventing pin for preventing the external detachment of the attachment mechanism when the attachment and detachment of various attachment mechanisms (for example, buckets or breakers) is configured, It relates to an excavator clamp configured to be able to carry out traction and lifting operations.

In general, an excavator is a machine that lifts and turns soil in a construction or civil engineering work, and then loads it on a truck, and the arm end of such an excavator is used for a kind of work other than the bucket used for the soil work described above. The clamp is installed by pin fixing so that other attachments (breakers or crushers, etc.) can be replaced.

Such a conventional excavator clamp is composed of a connecting piece having a pin connecting hole integrally connected to the excavator arm to the upper part of the clamp body, the lower part of the main body and the rotating piece having an annular contact groove, and the rotating means of the rotating piece As the hydraulic cylinder is fixed and the fixing piece having the fitting groove is coupled in an opposite form,

By attaching the attachment mechanism, the pivoting piece was rotated forward and backward by the hydraulic action of the hydraulic cylinder, and the pivoting piece was fixed to the fixing pins of the various attachment mechanisms.

However, in the conventional excavator clamp, which is attached to the attachment mechanism by the rotating piece and the fixing piece as described above, the fixing pin of the attachment mechanism is fixed by the external vibration applied to the attachment mechanism by severe vibration when using various attachment mechanisms. In some cases, there is a risk of safety accidents such as damage to the worker's body, which often occurs in close contact and fitting grooves. This was to be caused.

On the other hand, the excavator is often used as a means of towing or lifting the goods in addition to civil works in the construction site,

In this case, when the excavator is used as a towing or lifting means, it is unstable to fix the wire that binds the object to the attachment mechanism such as the bucket or the scraper of the bucket unstable, and then operate the excavator arm to move the object to the desired destination. As such, unstable traction and lifting work is dangerous to the worker body,

Another task was to ensure that the clamp has a multifunction to perform a stable operation in such a task.

Therefore, the present invention is intended to solve the general problems of the conventional excavator clamp described above,

The purpose of the present invention is to restrain the attachment mechanism from the attachment mechanism and the clamp by the release prevention pin, so that the continuous work is performed by preventing the safety accident at the source, and in addition to the self-function of the excavator clamp, Another object of the present invention is to provide an excavator clamp, which enables stable work even in towing operation, thereby increasing its use efficiency.

As a specific means for achieving the above object;

The connecting piece, which is the connecting means to the excavator arm, is composed of the upper part, and the rotating piece having the close contact groove and the fixed piece of the hydraulic cylinder are fixed and the fitting groove is formed at the lower part to be used as a means for mounting and detaching various attachment mechanisms with the excavator. In excavator clamps,

A release preventing pin which is screwed in the vertical direction of the close contact groove is screwed to the rotating piece, and one side of the connecting piece is integrally formed with a catch ring to prevent the release preventing pin from being separated out of the attachment mechanism by the release preventing pin. And it is achieved by having an excavator clamp configured to carry out the traction, lifting work by the engaging ring.

1 is a partially exploded perspective view of an excavator clamp according to the present invention

2 is in the excavator clamp according to the present invention, the state of use of the separation prevention pin

Shown section

3 is in the excavator clamp according to the present invention, the state of use of the hook

`` Explanation of symbols for major parts of drawings ''

1 Excavator clamp 2 Body frame 3,3 'Connecting piece

4: Fixed piece 5: Rotating piece 6: Hydraulic cylinder

7: Bucket (Attachment) 21: Penetration 31,31 ': Pin connection hole

32,32 ': Hook 33: Circular hole 41: Fitting groove

42: pin insertion hole 51: contact groove 52: release prevention pin

53: pin fastener 54: step 55: operating pin insertion hole

61: cylinder shaft 62: fixed mounting port 63: operating pin coupling port

71,71 ': Mounting plate 321,321': Hanging surface 531: Pin coupling hole

541: round screw A: excavator arm N, N ': nut for preventing loosening

Y: Wire P, P ', P ": Locking Pin, Rotating Pin, Operating Pin

Hereinafter, a preferred embodiment of the excavator clamp according to the present invention will be described in detail based on the accompanying drawings.

1 is a partial exploded perspective view of an excavator clamp according to the present invention, Figure 2 is an excavator clamp according to the present invention, a cross-sectional view showing a state of use of the release prevention pin, Figure 3 is an excavator clamp according to the present invention, As a state diagram of the use of the hook, look at the configuration;

The connecting pieces 3 and 3 'having the pin connecting holes 31 and 31' and the catching rings 32 and 32 'are composed of the upper part of the main frame 2, and the lower part is separated from the contact groove 51 and the lower part. The rotating piece 5 having the prevention pin 52 and the hydraulic cylinder 6 are fixed, and the fixing piece 4 in which the fitting groove 41 is formed is coupled to each other so as to be opposed to each other.

At this time, the main body frame 2 is formed with a through portion 21, which is an operating space of the hydraulic cylinder 6, which will be described later, as shown in FIG. 1, and circular pins as both side walls of the through portion 21. The pair of connecting pieces 3 and 3 ', in which the connecting holes 31 and 31' are formed, is formed in a form of facing each other integrally with the main body frame 2,

As such, as one side wall of the connecting piece (3, 3 '), an open surface is formed on one side as shown in Figure 1 and the ring-shaped locking ring (32, 32) is formed in the inner locking surface (321, 321') ') Is integrally formed to protrude, which is when the clamp 1 according to the present invention is mounted with an excavator arm (A), so that the open surfaces of the catching rings (32, 32') are located upwards, It is preferable to allow various wires Y and ropes to be caught by the engaging surfaces 321 and 321 '.

In addition, the fixing piece 4 has a semicircular fitting groove 41 formed at the bottom as shown in FIGS. 1 to 3, and a pin insertion hole 42 as a through hole is formed at the side wall. It is composed of the other side of the lower part of the main body frame 2 integrally with (2),

As the pin insertion hole 42 of the fixing piece 4, the hydraulic cylinder 6 having the cylinder shaft 61 is pinned by a separate fixing pin P,

Here, the hydraulic cylinder 6 to be applied to the clamp 1 according to the present invention is to apply a conventional hydraulic cylinder to control the inflow, outflow of the hydraulic oil to expand, contract the cylinder shaft 61,

As the cylinder-side end of the hydraulic cylinder 6, a fixing fixture 62 composed of the same diameter as the pin insertion hole 42 of the fixing piece 4 described above is integrally assembled by a coupling means such as welding. By doing so, the pin coupling to the fixing piece 4 is made.

In addition, the rotating piece 5 has a close contact groove 51 having the same shape as the fitting groove 41 of the fixing piece 4 described above, as shown in FIGS. A pin fastener 53 having a pin coupling hole 531 is formed, and is pin-coupled to rotate to one side wall of the connecting piece 3 and 3 'through the pin coupling hole 53.

The pin coupling between the pivoting piece 5 and the connecting piece 3, 3 'is equal in diameter to the pin coupling hole 531 at one lower end of the connecting piece 3, 3' as shown in FIG. It is made by forming a circular through hole 33, and pin the rotation pin (P ') through the circular through hole 33 and the pin coupling hole (531).

At this time, the stepped portion 54 which is immersed inward is configured to one side upper portion where the open surface of the close contact groove 51 is formed, and the circular screw hole 541 is formed at the center of the stepped portion 54, It is preferable to screw the release preventing pin 52, which is a bolt having a considerable length, in the vertical direction of the contact groove 51.

In addition, the other side wall of the close contact groove 51 is to constitute a working pin insertion hole 55 as a through hole, as shown in Figure 1,

This is configured to couple the operation pin coupler (63) to the end of the cylinder shaft 61 of the above-described hydraulic cylinder (6), through the operation pin coupler (63) and the operation pin insertion hole (55) It is hinged so that the operation pin (P ") can be rotated.

Thus, looking at the coupling state and the interaction according to each component of the excavator clamp (1) according to the present invention is configured as described above;

2 to 3 pin-fixes the hydraulic cylinder 6 through the pin insertion hole 42 of the fixing piece 4 formed integrally with the main body frame 2, and the rotation Pin (5) through the pin coupling hole 531 of the pin fastener 53 and the circular through hole 33 of the connecting piece (3, 3 ') to pin the rotation pin (P'),

As described above, the rotating piece 5 which is pin-coupled with the connecting pieces 3 and 3 'is connected to the operation pin coupling hole 63 of the cylinder shaft 61 of the hydraulic cylinder 6 through the operation pin insertion hole 55. After the pin is bonded by P ″), the assembly is completed by screwing the release preventing pin 52 into the circular screw hole 541.

At this time, the fixing piece (4) and the rotating piece (5) is fixed to the main frame (2) so that the fitting groove 41 and the contact groove 51 is formed in each of the outer direction, respectively, One hydraulic cylinder (6) is to connect a separate hydraulic line.

In addition, the pivoting piece 5 which is pin-coupled to the connecting pieces 3 and 3 'by the pivoting pin P' as described above is pivoted up and down with the pivoting pin P 'as the axis. The actuating pin coupler 63 of the cylinder shaft 61, which is pinned to the pivoting piece 5 by P "), is also pin-coupled so that the actuating pin P " . In this way, the rotary piece 5 which is pin-connected to the cylinder shaft 61 is rotated forward and backward whenever the cylinder shaft 61 is expanded or contracted by the hydraulic action of the cylinder 6.

On the other hand, the release prevention pin 52 is screwed into the circular screw hole 541 is preferably configured to prevent the loosening nuts (N, N ') to the upper, lower surfaces of the circular screw hole (541).

Therefore, the excavator clamp 1 according to the present invention, the assembly is completed as described above is fixed to the excavator arm (A) by the pin coupling through the pin connecting hole (31, 31 ') of the connecting piece (3, 3'). To be used for mounting and removing various attachment mechanisms,

FIG. 2 is a state diagram in which the bucket 7, which is a representative example of the attachment mechanism, is mounted. As shown in the drawing, first, the fitting groove 41 of the fixing piece 4 is mounted to the upper portion of the bucket 7 as shown in FIG. One of the pins 71 and 71 'wraps the one side mounting pin 71 in a fixed manner, and then expands the cylinder shaft 61 with the fixing piece 4 as an axis to form a close contact groove of the rotating piece 5 ( 51) securely fix the other side mounting pin (71 '),

Mounting of the bucket 7 is made by screwing the release preventing pin 52 in the vertical direction of the contact groove 51 to prevent the mounting piece 71 'tightly fixed to the pivoting piece 5 from being detached from the outside. will be.

Accordingly, even when the clamping force or the external pressure is generated by the clamp 1 or the bucket 7 during operation, and the fixing force by the contact groove 51 and the fitting groove 41 is lost, the bucket 7 as the attachment device by the release preventing pin 52. The outside of the mounting pins (71, 71 ') is prevented to prevent the occurrence of a safety accident in advance.

In addition, when the attachment mechanism other than the bucket 7 is mounted, the above-described mounting operation is performed in the reverse order to return the release preventing pin 52 to the original position, and then the oil acts as the mounting pins 71 and 71 'of the bucket 7. After removing the pressure to remove the bucket (7) from the clamp, it is possible to reattach the other attachment mechanism.

On the other hand, during the towing and lifting operations using the clamp (1) according to the present invention, as shown in Figure 3, the engaging surface (321,321) of the engaging ring (32,32 ') consisting of a pair of wires tied to the object to move It is possible to carry out towing and lifting of goods more stably by hanging with ').

As described above, the excavator clamp according to the present invention can prevent the attachment mechanism from being released from the clamp by the release preventing pin when mounting the various attachment mechanisms, thereby preventing the safety accidents inherently, and thus continuing work. It will have the effect of improving the working efficiency, and the use of the lifting clamp to the multifunction, such as lifting weight and traction function of the excavator clamp itself to increase the use efficiency is a very useful design for producers and users.

Claims (1)

The connecting piece 3, 3 ', which is a connecting means to the excavator arm A, consists of an upper portion, and a rotating piece 5 and a hydraulic cylinder 6 having a close contact 51 are fixed to the lower portion, and the fitting groove 41 In the excavator clamp (1), which is used as a means for mounting and detaching various attachment mechanisms by an excavator, in which a fixed piece (4) in which An anti-separation pin 52 which is screwed in the vertical direction of the contact groove 51 is screwed to the pivoting piece 5, and the hooks 32 and 32 'are connected to one side of the connecting pieces 3 and 3'. ) Is integrally configured to prevent the departure prevention pin 52 is separated from the outside of the attachment mechanism, the excavator by the hooking ring (32, 32 ') is configured to be able to carry out the lifting work clamp