CN218374148U

CN218374148U - Rear clamping plate of hydraulic breaking hammer

Info

Publication number: CN218374148U
Application number: CN202222079359.5U
Authority: CN
Inventors: 吕宗辉; 周志鹏; 陈伟豪; 陈伟力
Original assignee: Zhejiang Lingde Heavy Industry Co ltd
Current assignee: Zhejiang Lingde Heavy Industry Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2023-01-24
Anticipated expiration: 2032-08-08

Abstract

The utility model provides a back splint of hydraulic breaking hammer belongs to mechanical technical field. The hydraulic breaking hammer solves the problems that an existing hydraulic breaking hammer is not firm enough in clamping a hammer body and short in service life. This back splint of hydraulic breaking hammer, which comprises a plate body, the both ends of the inside wall of plate body are equipped with convex spacing boss, and two spacing bosses are the symmetry and set up, and the inside wall of spacing boss is for being used for leaning on the face of leaning on of the hammer core that leans on the quartering hammer, and the middle part that leans on the face is equipped with the recess of stepping down of indent, and the lateral wall of the recess of stepping down with lean on for the fillet transition between the face, the left side wall of spacing boss, right side wall and lean on to be the fillet transition between the face. The rear clamping plate of the hydraulic breaking hammer has the advantages of firm clamping of the hammer core and long service life.

Description

Rear clamping plate of hydraulic breaking hammer

Technical Field

The utility model belongs to the technical field of machinery, a back splint of quartering hammer, especially a hydraulic pressure quartering hammer is related to.

Background

The hydraulic breaking hammer has the advantages of large impact energy, high frequency and high construction efficiency, and is increasingly applied to mining, pavement breaking, tunnel tunneling, building breaking and dismantling and the like. The working principle is that a high-frequency and high-speed impact piston impacts or drives a steel chisel to impact and beat a target to break the target. For a target object with compact combination, high strength and large volume, the target object can be broken only when the striking times and the striking energy are accumulated to a certain degree.

The hydraulic breaking hammer (application number: 201420281690.8) as disclosed in Chinese patent document comprises a hammer shell and a hammer body with a steel chisel, wherein the hammer body is connected with the hammer shell through a jacking device and a moving device, a front clamping plate and a rear clamping plate of the moving device clamp the hammer body through bolts, and the front clamping plate and the rear clamping plate are integrated with the hammer body; the outer sides of the front clamping plate and the rear clamping plate are respectively symmetrically provided with two roller shafts, and rollers are arranged on the roller shafts; the inner side of the hammer shell is provided with a first groove track for the movement of the roller, the roller is arranged in the first groove track, the moving device can also be a structure that the roller is arranged on the upper part of the hammer shell, and the first groove track is arranged on the front clamping plate and the rear clamping plate. However, the rear clamping plate of the hydraulic breaking hammer is not firm enough to clamp the hammer body, and the contact part of the rear clamping plate and the hammer body is a right angle, so that cracks are easily generated, and the service life is influenced.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a rear clamping plate of a hydraulic breaking hammer which is firm in clamping a hammer core and long in service life.

The purpose of the utility model can be realized by the following technical proposal: rear plate of hydraulic pressure quartering hammer, the package rubbing board body, the both ends of the inside wall of plate body be equipped with convex spacing boss, and two spacing boss be the symmetry setting, its characterized in that, the inside wall of spacing boss for being used for leaning on the face of leaning on of the hammer core that leans on the quartering hammer, the middle part of leaning on the face be equipped with the recess of stepping down of indent, the lateral wall of the recess of stepping down with the face of leaning on between for the fillet transition, left side wall, the right side wall of spacing boss with the face of leaning on between be the fillet transition.

When using, two back splint centre gripping hammer cores, the lateral wall of hammer core support and lean on to support on the face, owing to the lateral wall of the recess of stepping down with support and be the fillet transition between the face, the left side wall of spacing boss, right side wall and support and be the fillet transition between the face, it is firm to have the centre gripping, can effectively avoid stress concentration, has improved life.

In foretell hydraulic breaking hammer's back splint, the cross-section of the recess of stepping down be trapezoidal, the lateral wall of the recess of stepping down and the tank bottom between be fillet transition. The cross section of the abdicating groove is trapezoidal, the contact area of the leaning surface and the hammer core is reduced, and the positioning effect is improved.

In the rear clamping plate of the hydraulic breaking hammer, the abdicating grooves are arc-shaped grooves which are bilaterally symmetrical. By adopting the arc-shaped groove, the contact area between the abutting surface and the hammer core is reduced, and the positioning effect is improved.

In the rear clamping plate of the hydraulic breaking hammer, the middle part of the plate body is provided with a through hole which penetrates through the plate body, and the through hole is square.

In the rear clamping plate of the hydraulic breaking hammer, the adjacent side walls of the through holes are in round transition.

In foretell hydraulic breaking hammer's back splint, the plate body be square just four extreme angle departments of plate body be equipped with the connecting hole just the connecting hole be the fore-and-aft direction and run through body and spacing boss. The connecting holes are formed in the four end corners, so that the advantages of convenience in connection and simple structure are achieved.

In the rear clamping plate of the hydraulic breaking hammer, the through hole is replaced by a round hole.

In the rear clamping plate of the hydraulic breaking hammer, the radius of the fillet is 4.2mm-6.2mm. Preferably, the fillet radius is 5mm.

In the rear clamping plate of the hydraulic breaking hammer, four end corners of the plate body are all in fillet transition.

In the rear clamping plate of the hydraulic breaking hammer, the thickness of the limiting boss is 18-32mm. Preferably, the thickness of the limiting boss is 20mm.

Compared with the prior art, this back splint of hydraulic breaking hammer has following advantage:

1. the side wall of the abdicating groove and the abutting surface are in fillet transition, and the left side wall, the right side wall and the abutting surface of the limiting boss are in fillet transition, so that the clamping is firm, the stress concentration can be effectively avoided, and the service life is prolonged;

2. the section of the abdicating groove is trapezoidal, so that the contact area between the abutting surface and the hammer core is reduced, and the positioning effect is improved;

3. the connecting holes are formed in the four end corners, so that the advantages of convenience in connection and simple structure are achieved.

Drawings

Fig. 1 is a perspective view of a rear jaw of the hydraulic breaker.

Fig. 2 is a left side schematic view of the rear jaw of the hydraulic breaker.

Fig. 3 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of fig. 2.

In the figure, 1, a plate body; 2. a limiting boss; 3. an abutting surface; 4. a yielding groove; 5. a through hole; 6. and connecting the holes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 3, the back splint of hydraulic breaking hammer, which comprises a plate body 1, the both ends of the inside wall of plate body 1 are equipped with convex spacing boss 2, and two spacing boss 2 are the symmetry setting, its characterized in that, the inside wall of spacing boss 2 is for being used for leaning on the face 3 that leans on the hammer core that leans on the breaking hammer, the middle part that leans on face 3 is equipped with the recess 4 of stepping down of indent, the lateral wall of recess 4 of stepping down with lean on to be the fillet transition between the face 3, the left side wall of spacing boss 2, the right side wall with lean on to be the fillet transition between the face 3, its fillet radius is 4.2mm-6.2mm. Preferably, the fillet radius is 5mm.

The cross-section of the abdicating groove 4 is trapezoidal, the side wall of the abdicating groove 4 and the groove bottom are in fillet transition, the contact area between the abutting surface 3 and the hammer core is reduced, and the positioning effect is improved. As another mode, the abdicating grooves 4 are arc-shaped grooves which are bilaterally symmetrical, the contact area of the abutting surface 3 and the hammer core is reduced, and the positioning effect is improved.

The plate body 1 is square and four end corners of the plate body 1 are provided with connecting holes 6 and the connecting holes 6 are in front-back direction and run through the body and the limiting boss 2, and the four end corners of the plate body 1 are in fillet transition. The middle part of the plate body 1 is provided with a through hole 5 which penetrates through the plate body, the through hole 5 is square, and the adjacent side walls of the through hole 5 are in fillet transition. Alternatively, the through-hole 5 is replaced with a circular hole.

The thickness of the limiting boss 2 is 18-32mm. Preferably, the thickness of the limiting boss 2 is 20mm.

When the hammer is used, the hammer core is clamped by the two rear clamping plates, the outer side wall of the hammer core is abutted against the abutting surface 3, and the bolt penetrates through the connecting hole 6 of the plate body 1 to enable the rear clamping plates to be fixedly connected with the hammer core. Because the lateral wall of the recess 4 of stepping down with support to be fillet transition between the face 3, the left side wall of spacing boss 2, right side wall and support to be fillet transition between the face 3, it is firm to have the centre gripping, can effectively avoid stress concentration, has improved life.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the plate body 1, the limiting boss 2, the abutting surface 3, the abdicating groove 4, the through hole 5, the connecting hole 6, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. Rear plate of hydraulic pressure quartering hammer, the package rubbing board body (1), the both ends of the inside wall of plate body (1) be equipped with convex spacing boss (2), and two spacing boss (2) be the symmetry setting, its characterized in that, the inside wall of spacing boss (2) for being used for leaning on supporting to face (3) of leaning on of the hammer core of quartering hammer, the middle part of leaning on face (3) be equipped with recess (4) of stepping down of indent, the lateral wall of recess (4) of stepping down with support and be the fillet transition between face (3), left side wall, right side wall of spacing boss (2) with support and be the fillet transition between face (3).

2. The rear clamping plate of the hydraulic breaking hammer according to claim 1, wherein the section of the abdicating groove (4) is trapezoidal, and the side wall and the bottom of the abdicating groove (4) are in fillet transition.

3. The rear clamping plate of the hydraulic breaking hammer according to claim 1, wherein the abdicating groove (4) is an arc-shaped groove which is symmetrical left and right.

4. A rear jaw of a hydraulic breaker according to claim 1, 2 or 3 characterised in that the plate body (1) is provided with a through hole (5) in the middle and that the through hole (5) is square.

5. A rear jaw of a hydraulic breaker according to claim 4 in which the adjacent side walls of the through-hole (5) are rounded.

6. The rear clamping plate of the hydraulic breaking hammer according to claim 1, 2 or 3, wherein the plate body (1) is square, connecting holes (6) are formed in four corners of the plate body (1), and the connecting holes (6) penetrate through the body and the limiting boss (2) in the front-back direction.

7. A rear jaw of a hydraulic breaking hammer according to claim 4, characterized in that the through hole (5) is replaced by a round hole.

8. A rear jaw of a hydraulic breaking hammer according to claim 1, 2 or 3, characterized in that four end corners of the plate body (1) are rounded off.

9. A back plate of a hydraulic breaking hammer according to claim 1, 2 or 3, characterized in that the thickness of the limit boss (2) is 18-32mm.