CN216641987U

CN216641987U - Heavy-calibre bundling down-the-hole hammer locking device

Info

Publication number: CN216641987U
Application number: CN202122928068.4U
Authority: CN
Inventors: 赵业臣; 鄢承良; 景奉征; 赵业春
Original assignee: Shandong Haozhou Geothermal Engineering Co ltd
Current assignee: Haozhou Drilling Engineering Machinery Shandong Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-31
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a large-diameter cluster type down-the-hole hammer locking device which comprises a shell, a joint, a hammer head and a flange plate, wherein one end of the shell is provided with the flange plate, the flange plate is embedded with the joint, the hammer head is limited in the joint, one side surface of the flange plate, which is far away from the hammer head, is provided with a hexagonal bolt, the hammer head is fixedly connected onto the flange plate through the hexagonal bolt, the outer side surface of the flange plate, which is positioned at the outer side of the hexagonal bolt, is provided with an outer polygonal inner sleeve, the outer side of the outer polygonal inner sleeve is provided with an outer fixing sleeve, and the top end of the hexagonal bolt is inserted with a pin shaft. The utility model has the advantages of adopting thread shape and screw rod shape improvement, adding a movable inner sleeve and an outer sleeve to be fixed on the hammer body, thereby preventing the hammer head from falling off.

Description

Heavy-calibre bundling down-the-hole hammer locking device

Technical Field

The utility model relates to the technical field of cluster down-the-hole hammers, in particular to a large-diameter cluster down-the-hole hammer locking device.

Background

At present, the lock is usually locked by a locking sheet after the screw is compressed, and the nut and the pituity are directly welded into a whole in the market. But the locking sheet is easy to loosen and fall off after drilling for a period of time; the replacement of a single down-the-hole hammer after welding is very slow, long in time and low in efficiency, and the hammer body and the screw are easy to damage; meanwhile, the upper bolt is not loosened, and the lower drill clamping sleeve is broken to locally drop to damage a single down-the-hole hammer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a large-diameter cluster down-the-hole hammer locking device which has the advantages of adopting a thread shape, improving the shape of a screw, adding a movable inner sleeve and adding an outer sleeve to be fixed on a hammer body so as to prevent the hammer head from falling off, and solves the problems that the screw is usually locked by a locking sheet after being compressed in the existing market, and a nut and a pituitary are directly welded into a whole. But the locking sheet is easy to loosen and fall off after drilling for a period of time; the replacement of a single down-the-hole hammer after welding is very slow, long in time and low in efficiency, and the hammer body and the screw are easy to damage; meanwhile, the upper bolt is not loosened, and the problem that a single down-the-hole hammer is damaged due to local falling of the lower drill clamping sleeve caused by fracture is also caused.

In order to achieve the purpose, the utility model provides the following technical scheme:

heavy-calibre bundling down-the-hole hammer locking device, including shell, joint, tup and ring flange, the ring flange is installed to the one end of shell, it has the joint to inlay on the ring flange, spacing the installing has the tup in the joint, one side surface mounting that the ring flange deviates from the tup has hexagon bolt, the tup passes through hexagon bolt and connects to be fixed on the ring flange, the outside that the outside surface of ring flange is located hexagon bolt is equipped with outer polygonal endotheca, the outside of outer polygonal endotheca is equipped with outer fixed cover, be connected with the round pin axle on the hexagon bolt.

Preferably, the inside of connecting is equipped with the jump ring, the jump ring cushions the tup.

Preferably, pin holes are formed in two sides of the pin shaft in a penetrating mode, and cotter pins are inserted into the pin holes.

Preferably, the number of the split pins is two, and the two split pins are symmetrically distributed on two sides of the pin shaft.

Preferably, the size of the hammer head is matched with that of the joint.

Preferably, the anti-skid lines are arranged on the opposite surfaces of the joint and the hammer head.

Preferably, the hexagon bolt is located the inside one end of tup and installs fixing bolt, just the inside of tup is equipped with the stop collar, fixing bolt is spacing through the stop collar pressure in the tup.

Compared with the prior art, the utility model has the beneficial effects that: the outer polygonal inner sleeve is arranged, the hexagon bolt and the single down-the-hole hammer head are screwed, the outer polygonal inner sleeve is placed, the outer edge in the outer polygonal inner sleeve is polygonal, the inner polygon is aligned with the hexagon outside the hexagon bolt, meanwhile, the outer polygon is aligned with multiple corners in the outer fixing sleeve on the welding hammer body, the pin shaft is installed after being pushed slightly, two ends of the pin shaft are fixed by split pins to prevent small shafts from jumping out, so that the hexagon bolt is fixed well and cannot be withdrawn, and the effect of preventing the single down-the-hole hammer from falling off is achieved, the contact surface of the connector and the hammer head is provided with anti-slip grains, the anti-slip grains can increase the friction force between the connector and the hammer head, further prevent the hammer head from rotating during the use process to cause the loosening of the hammer head, the fixing bolt is arranged at one end of the hexagon bolt positioned in the hammer head, the fixing bolt is pressed and limited in the hammer head through the limiting sleeve, and further fixes the hammer head through the limiting sleeve, thereby the hammer head is more stable in the using process.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view of the flange of the present invention;

fig. 3 is a rear view of the flange of the present invention.

In the figure: 1. a housing; 2. a joint; 3. a clamp spring; 4. a hammer head; 5. an outer polygonal inner sleeve; 6. a pin hole; 7. a hexagon bolt; 8. a pin shaft; 9. an outer fixing sleeve; 10. a flange plate; 11. a cotter pin; 12. anti-skid lines; 13. fixing a nut; 14. a limiting sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an embodiment of the present invention includes:

heavy-calibre bundling down-the-hole hammer locking device, which comprises an outer shell 1, connect 2, tup 4 and flange dish 10, ring flange 10 is installed to the one end of shell 1, it has joint 2 to inlay on the ring flange 10, the inside of connecting 2 is equipped with jump ring 3, jump ring 3 cushions tup 4, spacing installation has tup 4 in the joint 2, anti-skidding line 12 has all been seted up with the opposite face of tup 4 to connect 2, the frictional force between 12 multiplicable joint 2 of anti-skidding line and the tup 4, and then prevent that tup 4 from rotating in the use, it is not hard up to lead to tup 4,

tup

4 and 2 big or small looks adaptation, one side surface mounting that the ring flange 10 deviates from tup 4 has hexagon bolt 7.

The hammer head 4 is fixedly connected with a flange plate 10 through a hexagon bolt 7, one end of the hexagon bolt 7, which is positioned inside the hammer head 4, is provided with a fixing bolt 13, a limiting sleeve 14 is arranged inside the hammer head 4, the fixing bolt 13 is pressed and limited in the hammer head 4 through the limiting sleeve 14, the hammer head 4 is further fixed through the limiting sleeve 14 pressing the fixing bolt 13, so that the hammer head 4 is more stable in the using process, an outer polygonal inner sleeve 5 is arranged on the outer side surface of the flange plate 10, which is positioned outside the hexagon bolt 7, the hexagon bolt 7 is screwed with a single down-the-hole hammer head 4, the outer polygonal inner sleeve 5 is placed, the inner and outer sides of the outer polygonal inner sleeve 5 are polygonal, the inner and outer sides of the inner and outer polygonal inner sleeves are aligned with the hexagon of the hexagon bolt 7, the outer sides of the outer and outer sides are aligned with the inner and outer corners of an outer fixing sleeve 9 welded on a hammer body, the pin shaft 8 is installed after being slightly pushed, two ends of the pin 8 are fixed through split pins 11, so as to prevent small shafts from jumping out, the hexagonal bolt 7 is fixed well and can not be withdrawn, the effect of preventing a single down-the-hole hammer from falling is achieved, the outer side of the outer polygonal inner sleeve 5 is provided with an outer fixing sleeve 9, the top end of the hexagonal bolt 7 is connected with a pin shaft 8 in an inserting mode, pin holes 6 are formed in two sides of the pin shaft 8 in a penetrating mode, split pins 11 are connected in the pin holes 6 in an inserting mode, the number of the split pins 11 is two, and the two split pins 11 are symmetrically distributed on two sides of the pin shaft 8.

The working principle is as follows: the hexagonal bolt 7 and the single down-the-hole hammer head 4 are screwed tightly, the outer polygonal inner sleeve 5 is placed, the inner and outer edges of the outer polygonal inner sleeve 5 are polygonal, the inner polygon is aligned with the outer hexagon of the hexagonal bolt 7, the outer polygon is aligned with the inner corners of the outer fixed sleeve 9 on the welding hammer body, the pin shaft 8 is installed after being pushed slightly, the two ends of the pin shaft 8 are fixed by split pins 11 to prevent the small shaft from jumping out, so that the hexagonal bolt 7 is fixed well and can not be withdrawn, and further the effect of preventing the single down-the-hole hammer from falling off is achieved, the anti-slip threads 12 are arranged on the opposite surfaces of the joint 2 and the hammer head 4, the anti-slip threads 12 can increase the friction force between the joint 2 and the hammer head 4, further, the hammer head 4 is prevented from rotating in the use process to cause the loosening of the hammer head 4, meanwhile, the fixing bolt 13 is arranged at one end of the hexagonal bolt 7 positioned in the hammer head 4, the limiting sleeve 14 is arranged in the hammer head 4, the fixing bolt 13 is pressed and limited in the hammer head 4 by the limiting sleeve 14, the hammer 4 is further fixed by compressing the fixing bolt 13 through the limiting sleeve 14, so that the hammer 4 is more stable in the using process.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Heavy-calibre bundling down-the-hole hammer locking device includes shell (1), joint (2), tup (4) and flange dish (10), its characterized in that: the utility model discloses a special angle steel pipe, including shell (1), ring flange (10) are installed to the one end of shell (1), it has joint (2) to inlay on ring flange (10), spacing installation has tup (4) in joint (2), the surface mounting of one side that ring flange (10) deviates from tup (4) has hex bolts (7), tup (4) are connected through hex bolts (7) and are fixed on ring flange (10), the outside surface of ring flange (10) is located the outside of hex bolts (7) and is equipped with outer polygonal endotheca (5), the outside of outer polygonal endotheca (5) is equipped with outer fixed cover (9), peg graft on hex bolts (7) top has round pin axle (8).

2. The large caliber cluster down-the-hole hammer locking device of claim 1, wherein: the connector is characterized in that a clamp spring (3) is arranged inside the connector (2), and the clamp spring (3) buffers a hammer head (4).

3. The large caliber cluster down-the-hole hammer locking device of claim 1, wherein: two sides of the pin shaft (8) are provided with pin holes (6) in a penetrating manner, and cotter pins (11) are inserted into the pin holes (6).

4. The large caliber cluster down-the-hole hammer locking device of claim 3, wherein: the number of the split pins (11) is two, and the two split pins (11) are symmetrically distributed on two sides of the pin shaft (8).

5. The large caliber cluster down-the-hole hammer locking device of claim 1, wherein: the hammer head (4) is matched with the joint (2) in size.

6. The large caliber cluster down-the-hole hammer locking device of claim 1, wherein: anti-skid grains (12) are arranged on the opposite surfaces of the joint (2) and the hammer head (4).

7. The large caliber cluster down-the-hole hammer locking device of claim 1, wherein: fixing bolt (13) are installed to the one end that hex bolts (7) are located tup (4) inside, just the inside of tup (4) is equipped with stop collar (14), fixing bolt (13) compress tightly spacingly through stop collar (14) in tup (4).