KR200142652Y1 - Attachment type crusher jaw for civil-architecture heavy equipment - Google Patents

Abstract

The present invention relates to a detachable crusher jaw for civil construction machinery that is easy to replace the crushing blades when the concrete crushing work by mounting a crusher jaw on the construction heavy equipment.

The device of the present invention has a fixing hole (11) and a rotating hole (12) for rotatably fixing to the cylinder (2) and the support (3), respectively, and are formed in left and right pairs, The contact portion of the pair has a crasher jaw (10) having a central opening (15) is formed with a first mounting means; In addition, a second mounting means is formed on one surface thereof so as to be connected to the first mounting means at the central opening 15 of the crasher jaw 10, and an upper blade 25 and a lower blade 26 are formed on the other surface thereof. And a separating blade 20.

Accordingly, the present invention has the effect of easy maintenance and replacement of the crushing blades when working with a concrete crushing work in the middle of civil engineering, thereby reducing the management cost.

Description

Detachable crusher jaw for construction machinery

1 is a front view showing a work machine for heavy construction machinery,

2 is a front view showing the crasher jaw according to the present invention,

3 is a front view showing a separation blade according to the present invention,

4 is a cross-sectional view of the X-X portion of FIG.

FIG. 5 is an exemplary view showing a modified embodiment of FIG.

* Explanation of the main symbols used in the drawings

1: fixed body 2: cylinder

3: support 4: crasher jaws (conventional)

5, 25: upper blade 6, 26: lower blade

10: crasher jaw (this design) 11: fixed hole

12: rotating hole 13: mounting table

14, 24: pinhole 15: center opening

20: separation blade 21: mounting groove

22: upper chamfer 23: lower projection

27: double side protrusion 28: double side jaw

The present invention relates to a working machine of civil heavy equipment, and more particularly, to a removable heavy duty crusher jaw for a heavy construction machine which is equipped with a crusher jaw in the construction heavy equipment to facilitate the exchange of the crushing blades when concrete crushing works. .

Referring to the concrete crushing operation of the conventional civil heavy machinery using FIG. 1, the working machine detachably installed on the boom (not shown) of the civil heavy machinery by the fixed body 1 cylinder (2) for generating a work force , A crasher jaw (4) performing the work, and a support (3) providing a rotational support of the cylinder (2) and the crasher jaw (4), and the like as the operator controls the hydraulic valve in the operating room. The cylinder 2 is actuated to provide crushing force to the crasher jaws 4.

In such a device, the crasher jaw 4 is usually left-right and has a plurality of blades, i.e., the upper blade 5 and the lower blade 6, integrally formed at the center portion thereof in contact with each other. The upper blades 5 and lower blades 6, which use cast steel or mild steel plate and are subjected to separate heat treatment or surface treatment to increase hardness, are subjected to excessive impact force during crushing work such as concrete. Accordingly, there is an inconvenience in that the entire crasher jaw (4) needs to be replaced.

Accordingly, an object of the present invention is to provide a detachable clasher jaw for a heavy construction machine, which is easy to replace the crushing blade of the Krasher jaw by forming a separate portion of the detachable structure of the Kracher jaw of the civil engineering work.

In order to achieve the above object, the present invention has a fixed hole and a rotating hole for rotatably fixing the cylinder and the support, respectively, and is formed as a pair of left and right types, and a part of the left and right contact portions has a first portion. A crasher jaw having a central opening with a mounting means; And a second mounting means formed on one surface thereof so as to be fixedly connected to the first mounting means at the central opening of the crusher jaw, and a detachable crusher jaw for civil construction including a separation blade having at least one blade formed on the other surface thereof. To provide.

In this case, the first mounting means has a plurality of penetrated pinholes 14 and uses mounting brackets 13 formed on the left and right sides integrally with the crasher jaw 10, and the second mounting means Mounting grooves 21 and pinholes 24 formed on one surface of the separation blade 20 are used to engage the left and right mounting tables 13 and the pinholes 14, respectively.

On the other hand, the separation blade 20 further forms an upper chamber 22 chamfered to a predetermined dimension on the contact surface with the central opening 15 at the upper portion, and protrudes from the lower surface of the crasher jaw 10 at the lower portion thereof. The lower projection 23 is further formed, and the front and rear may further be formed on both sides of the two-sided projection 27 to a dimension slightly larger than the thickness of the crasher jaw 10, as a variant embodiment It is also possible to further form a double-sided jaw 28 extending from the protrusion 27 forward by a predetermined length to surround the end of the crasher jaw (10).

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

2 is a front view showing the crasher jaw according to the present invention.

Crasher jaw 10 formed in a pair of left and right symmetrically having a fixing hole 11 and a rotating hole 12 at the upper and side portions, respectively, is a rotating hole 12 and a cylinder 2 connected thereto. (See FIG. 1) The operating force of (see FIG. 1) is opened and closed around the fixing hole (11) connected to the support (3) and crushed concrete, etc., in the center is formed a central opening 15 that opens to the bottom .

At this time, the central opening 15 is formed at the position of the upper blade 5 and the lower blade 6 of FIG. 1, the left and right sides of the mount 13 having a plurality of pinholes 14, respectively Is formed. The separating blade 20 shown by the double-dot chain line is attached to the mounting base 13 and the pinhole 14 detachably by a pin (not shown).

Accordingly, while the separation blade 20 performs the crushing operation as shown in FIG. 1 in conjunction with the crusher jaw 10, the weight is much less than that of the crusher jaw 10, so that the replacement time is shorter and the parts cost are reduced. .

3 is a front view showing a separating blade according to the present invention.

The separation blades 20 are also formed in pairs in a left-right symmetrical manner similar to the crasher jaws 10, and only the left ones are shown in the drawing.

The separation blade 20 has a mounting groove 21 formed on one surface thereof so as to be mounted on the crasher jaw 10, and an upper blade 25 and a lower blade 26 on the other surface thereof so as to be crushed. Is formed. In the mounting groove 21 of the separation blade 20 to be fitted to the mounting table 13 of the crasher jaw 10 is formed a pinhole 24 of the same size as the pin hole 14 of the mounting table 13, The separation blade 20 can be detachably attached to the crasher jaw 10 with a pin (not shown). In this case, in addition to the pin, it may be fastened by other fastening means such as a bolt.

At this time, the upper chamfer 22 is chamfered to a predetermined dimension on the surface in contact with the central opening 15 (see FIG. 2) in the upper portion of the separation blade 20, the lower portion of the separation blade 20 It is preferable to form the lower protrusion 23 so as to protrude downward from the lower end surface of the shear jaw 10. This is to prevent damage to the lower end of the crasher jaw 10 or the upper sidewall of the central opening 15 (see FIG. 2) during the impact and thus to ensure easy mounting of the separation blade 20 during operation. .

4 is a cross-sectional view of the X-X portion of FIG.

Double-sided protrusions 27 are formed on the front side (upper side in FIG. 4) and the rear side (lower side in FIG. 4) of the separation blade 20 with dimensions slightly larger than the thickness of the crasher jaw 10. Like the upper chamfer 22 and the lower protrusion 23, it serves to prevent damage to the crasher jaw 10 and to ensure the mounting of the separation blade (20).

FIG. 5 is an exemplary diagram showing a modified embodiment of FIG.

In order to further protect the front and rear of the crasher jaw 10, the double side projection 28 extends slightly from the double side protrusion 27 in FIG. 4 to the front (left side in the figure).

As described above, the present invention is designed to be detachable by using a separation blade instead of the integrated crasher jaw, which is impacted when working with a concrete crushing machine in the middle of construction, so that the repair and replacement of the crushing blades becomes easy. Management costs are also reduced.

Although the present invention has been illustrated and described with reference to certain preferred embodiments, the present invention may be variously modified and changed without departing from the spirit or the field of the present invention provided by the following utility model registration claims. It will be readily apparent to one of ordinary skill in the art that it can be used.

Claims (4)

In the crusher jaw (10) mounted to the boom of the heavy construction machine, and receives the rotational force of the cylinder (2), the support (3) is opened and closed to the center of rotation, and exerts a crushing force on concrete or the like; It has a fixing hole 11 and a rotating hole 12 for rotatably fixing to the cylinder 2 and the support 3, respectively, and is formed in a pair of left and right types, and a part of the contact portion of the left and right pairs. Has a crasher jaw (10) having a central opening (15) formed with a first mounting means; And Separating blades having a second mounting means formed on one surface thereof so as to be connected to the first mounting means at the central opening 15 of the crasher jaw 10, and at least one blade 25, 26 formed on the other surface thereof. Removable Krasher jaw for civil construction heavy machinery characterized by including 20). The method of claim 1; The first mounting means uses a mounting 13 having a plurality of penetrated pinhole 14 and formed on the left and right sides integrally with the crasher jaw 10, The second mounting means is characterized in that using the mounting groove 21 and the pinhole 24 formed on one surface of the separation blade 20 to be engaged with the left and right mounting bracket 13 and the pinhole 14, respectively. Detachable crusher jaws for the heavy construction machine to say. The method of claim 1 or 2; The separation blade 20 further has an upper chamfer 22 which is chamfered to a predetermined dimension on the contact surface with the central opening 15 at the upper portion thereof, and at the lower end of which the lower blade protrudes from the lower surface of the crasher jaw 10. Detachable crucible jaw for civil construction heavy machinery, characterized in that the protrusion 23 is further formed, the front and rear of the two-sided protrusion 27 is further formed in a dimension slightly larger than the thickness of the crasher jaw (10). The method of claim 3; The separation blade 20 extends forward by a predetermined length from both side projections 27, and a double side jaw 28 surrounding the end of the crasher jaw 10 is further formed, characterized in that the removable heavyweight for civil construction Joe.