CN219240677U

CN219240677U - Heavy-calibre long-life quartering hammer

Info

Publication number: CN219240677U
Application number: CN202320894471.6U
Authority: CN
Inventors: 张海义; 于茂涛
Original assignee: Yantai Bai Tai Heat Treatment Technology Co ltd
Current assignee: Yantai Bai Tai Heat Treatment Technology Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-06-23
Anticipated expiration: 2033-04-17

Abstract

The utility model relates to a large-caliber long-service-life breaking hammer, which belongs to the technical field of hydraulic equipment and comprises a cylinder body, a piston rod and a drill rod, wherein the cylinder body comprises a front cylinder body and a middle cylinder body, the drill rod is arranged in the middle cylinder body, an arc surface is formed at the position, which is in contact with the end part of the piston rod, of the end part of the drill rod, the drill rod is provided with a bulge part matched with the arc surface, and a limiting mechanism which is in contact with the drill rod is arranged in the middle cylinder body. The application has the advantage of long service life.

Description

Heavy-calibre long-life quartering hammer

Technical Field

The utility model relates to a large-caliber long-service-life breaking hammer, and belongs to the technical field of hydraulic equipment.

Background

The breaking hammer can convert hydraulic energy into mechanical energy, so that equipment doing work outwards is mainly used for breaking, dismantling, excavating hard floors and the like, and is usually installed on an excavator, a loader or a power station for use; typically, the breaking hammer comprises a cylinder, a piston rod, a drill rod and the like, wherein the piston rod and the drill rod are both arranged in the cylinder.

At present, along with the increase of large-scale mechanization degree, the caliber of the breaking hammer is larger and larger, the large-caliber breaking hammer plays a vital role in the fields of mine excavation and the like, after the outer sleeve which is in contact with the drill rod is worn out along with the time in use, a gap is generated between the drill rod and the outer sleeve, and along with the increase of the gap, the drill rod can incline, at the moment, the piston rod is hit at the end part of the drill rod, because the drill rod inclines, after the piston rod is hit on the drill rod, the force of the piston rod is quite large, and after the end part of the piston rod is contacted with an inclined plane, the end part of the piston rod is worn out at the contact part of the drill rod, and the breaking hammer runs for a long time under the working condition, so that the service life of the breaking hammer is greatly shortened.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides a large-caliber long-service-life breaking hammer.

The technical scheme for solving the technical problems is as follows: the utility model provides a heavy-calibre long-life quartering hammer, includes cylinder body, piston rod and drill rod, the cylinder body includes preceding cylinder body and well cylinder body, the drill rod sets up in well cylinder body, the arc surface has been seted up to the inconsistent department of piston rod tip and drill rod tip, the drill rod is equipped with the bellying with arc surface looks adaptation, be equipped with the stop gear that contradicts with the drill rod in the well cylinder body.

Based on the technical scheme, the utility model can also be improved as follows:

further, the limiting mechanism comprises a limiting sleeve, the limiting sleeve is fixedly arranged in the middle cylinder body, and the inner side of the limiting sleeve is in contact with the drill rod.

Further, the limiting block is arranged at the upper end of the limiting sleeve, the limiting block and the limiting sleeve are integrally formed, a first limiting inclined surface which is abutted against the drill rod is arranged on the limiting block, and a second limiting inclined surface which is abutted against the first limiting inclined surface is arranged on the drill rod.

Further, a convex ring is arranged in the middle cylinder body, the convex ring and the middle cylinder body are integrally formed, a first limiting plane is arranged at one end, close to the limiting block, of the convex ring, and a second limiting plane which is in contact with the first limiting plane is arranged at the limiting block.

Further, the ratio of the radius R of the arc surface to the diameter H of the section of the piston rod is: r: H=1:1.06-1.10.

Further, the ratio of the radius L of the arc length of the cross section of the protruding part to the diameter H of the cross section of the piston rod is: l: H=1:1.10-1.12.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the breaking hammer, the arc surface is arranged at the end part of the piston rod, the bulge part matched with the arc surface is arranged at the end part of the drill rod, when the drill rod tilts, the piston rod is used for striking the drill rod, the bulge part at the end part of the drill rod is positioned in the arc surface at the end part of the piston rod, the problem that the end part of the piston rod rubs with the end part of the drill rod and then is worn out can be greatly improved, and therefore the service life of the piston rod can be guaranteed, and the service life of the breaking hammer is prolonged;

2. according to the drill rod limiting mechanism, the limiting mechanism is arranged, the drill rod can be limited at one end close to the piston rod, the inclination problem of the drill rod can be reduced, the abrasion problem of the piston rod can be further reduced, and the service life of the breaking hammer can be further prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a large-caliber long-life breaking hammer according to an embodiment of the present application;

fig. 2 is a schematic view showing the structure of a piston rod in the embodiment of the present application.

In the figure, 1, a cylinder body; 11. a front cylinder; 12. a middle cylinder; 13. a jacket; 2. a piston rod; 21. an arc surface; 3. a drill rod; 31. a boss; 4. a limiting mechanism; 41. a limit sleeve; 42. a limiting block; 51. a limiting inclined plane I; 52. a limiting inclined plane II; 6. a convex ring; 61. the first limiting plane is a limiting plane; 62. and a limiting plane II.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1 and 2, a heavy caliber long service life breaking hammer comprises a cylinder body 1, a piston rod 2 and a drill rod 3, wherein the cylinder body 1 comprises a front cylinder body 11 and a middle cylinder body 12, the drill rod 3 is arranged in the middle cylinder body 12, one end of the middle cylinder body 12, which is far away from the piston rod 2, is provided with an outer sleeve 13, the inner side of the outer sleeve 13 is in contact with the drill rod 3, an arc surface 21 is formed at the contact position of the end part of the piston rod 2 and the end part of the drill rod 3, the drill rod 3 is provided with a bulge 31 which is matched with the arc surface 21, the middle cylinder body 12 is internally provided with a limiting mechanism 4 which is in contact with the drill rod 3, when the breaking hammer works, the drill rod 3 reciprocates under the impact of the piston rod 2, and when the piston rod 2 impacts the drill rod 3, the friction between the end part of the piston rod 2 and the end part of the drill rod 3 can be greatly improved, and then the abrasion problem occurs, the limiting mechanism 4 can play a limiting function on the end part of the drill rod 3, the problem of inclination of the end part of the drill rod 3 can be reduced, and the wear problem of the piston rod 2 can be further reduced, and the service life of the breaking hammer can be greatly prolonged.

As shown in fig. 1 and 2, the limiting mechanism 4 comprises a limiting sleeve 41, the limiting sleeve 41 is fixedly arranged in the middle cylinder body 12, the limiting sleeve 41 is fixedly connected with the middle cylinder body 12 through bolts, after the limiting sleeve 41 is arranged in the middle cylinder body 12 through bolts, the inner side of the limiting sleeve 41 is abutted against the drill rod 3, so that the drill rod 3 can be limited, friction is generated between the drill rod 3 and the outer sleeve 13 when the breaking hammer is operated, the outer sleeve 13 can be worn, when the outer sleeve 13 is not replaced, the drill rod 3 can incline during reciprocating operation, the limiting sleeve 41 is abutted against the end part of the drill rod 3, the inclination problem of the drill rod 3 can be reduced, and therefore the piston rod 2 can be impacted at the center of the drill rod 3, and the abrasion to the piston rod 2 can be reduced.

As shown in fig. 1 and 2, a limiting block 42 is arranged at the upper end of the limiting sleeve 41, the limiting block 42 and the limiting sleeve 41 are integrally formed, and the integral forming of the limiting block 42 and the limiting sleeve 41 ensures the stability of the limiting block 42, so that the problem of difficult separation between the limiting block 42 and the limiting sleeve 41 is solved; the limiting block 42 is provided with a first limiting inclined plane 51 which is in contact with the drill rod 3, the drill rod 3 is provided with a second limiting inclined plane 52 which is in contact with the first limiting inclined plane 51, when the drill rod 3 runs under the impact of the piston rod 2, the first limiting inclined plane 51 is in contact with the second limiting inclined plane 52, and the limiting block 42 is arranged and the first limiting inclined plane 51 and the second limiting inclined plane 52 are arranged, so that the limiting effect on the drill rod 3 can be further guaranteed.

As shown in fig. 1 and 2, the middle cylinder body 12 is internally provided with the convex ring 6, the convex ring 6 and the middle cylinder body 12 are integrally formed, and the convex ring 6 and the middle cylinder body 12 are integrally formed, so that the stability of the convex ring 6 is ensured, and when the limiting block 42 is stressed, the convex ring 6 is abutted against the limiting block 42, and the limiting force of a part can be buffered, so that the limiting block 42 and the limiting sleeve 41 are not easy to deform. One end of the convex ring 6, which is close to the limiting block 42, is provided with a first limiting plane 61, the limiting block 42 is provided with a second limiting plane 62 which is in contact with the first limiting plane 61, and the first limiting plane 61 is in contact with the second limiting plane 62, so that the buffering effect of the convex ring 6 on the force of the limiting block 42 can be ensured.

As shown in fig. 1 and 2, the ratio of the radius R of the circular arc surface 21 to the diameter H of the cross section of the piston rod 2 is: r: H=1:1.06-1.10, the ratio of the radius L of the arc length of the cross section of the boss 31 to the diameter H of the cross section of the piston rod 2 is: L:H=1:1.10-1.12, through carrying out the proportional control between diameter H of piston rod 2 cross section, radius R of arc 21 and the radius L of bellying 31 cross section arc length to can restrict the radian of arc 21 and the radian of bellying 31 cross section, when guaranteeing arc 21 and bellying 31 best cooperation effect, still reducible arc 21 sets up the too big problem of radian, thereby reducible when arc 21 radius is too little, after the collision is contradicted with piston rod 2 to drill rod 3, the problem of swelling deformation that the piston rod 2 tip is close to the both sides of arc 21 appears.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a heavy-calibre long-life quartering hammer, includes cylinder body (1), piston rod (2) and drill rod (3), its characterized in that: cylinder body (1) are including preceding cylinder body (11) and well cylinder body (12), drill rod (3) set up in well cylinder body (12), arc surface (21) have been seted up with the inconsistent department of drill rod (3) tip in piston rod (2) tip, drill rod (3) are equipped with protruding portion (31) with arc surface (21) looks adaptation, be equipped with in well cylinder body (12) with the inconsistent stop gear (4) of drill rod (3).

2. The heavy caliber long life breaking hammer according to claim 1, wherein: the limiting mechanism (4) comprises a limiting sleeve (41), the limiting sleeve (41) is fixedly arranged in the middle cylinder body (12), and the inner side of the limiting sleeve (41) is abutted against the drill rod (3).

3. The heavy caliber long life breaking hammer according to claim 2, wherein: limiting blocks (42) are arranged at the upper ends of the limiting sleeves (41), the limiting blocks (42) and the limiting sleeves (41) are integrally formed, first limiting inclined surfaces (51) which are inconsistent with the drill rod (3) are formed in the limiting blocks (42), and second limiting inclined surfaces (52) which are inconsistent with the first limiting inclined surfaces (51) are formed in the drill rod (3).

4. A heavy caliber long life breaking hammer according to claim 3, wherein: be equipped with bulge loop (6) in well cylinder body (12), bulge loop (6) and well cylinder body (12) integrated into one piece, spacing plane one (61) have been seted up to one end that bulge loop (6) are close to stopper (42), spacing plane two (62) that contradict with spacing plane one (61) have been seted up to stopper (42).

5. The heavy caliber long life breaking hammer according to claim 1, wherein: the ratio of the radius R of the arc surface (21) to the diameter H of the cross section of the piston rod (2) is as follows: r: H=1:1.06-1.10.

6. The heavy caliber long life breaking hammer according to claim 1, wherein: the ratio of the radius L of the arc length of the cross section of the protruding part (31) to the diameter H of the cross section of the piston rod (2) is as follows: l: H=1:1.10-1.12.