CN217267747U - Drill rod capable of preventing flat pin groove from being broken - Google Patents

Abstract

The utility model discloses a prevent drill rod of cotter way fracture, including the drill rod body, the drill rod body includes tip portion, intermediate part and pointed end, and the intermediate part both ends are fixed connection through bolt and tip portion, pointed end respectively, and the end includes the end, offers the forging cotter way that is loop configuration on the outer wall of end side, and end side outer wall is close to one end department integrated into one piece and has ring flange one, and intermediate part side outer wall is close to both ends department equal integrated into one piece and has ring flange two. The utility model discloses beneficial effect forges the cotter way and adopts local forging processing technology when processing this drill rod, makes cotter way transverse fracture obviously reduce, makes drill rod spoilage greatly reduced, and then has prolonged the life of drill rod, when the pointed end is impaired or is ground flat, the structure that comprises conical head, inner shell and shell can make this pointed end can dismantle, makes and need not to pull down whole pointed end and polish again and just can continue the striking to the object.

Description

Drill rod capable of preventing flat pin groove from being broken

Technical Field

The utility model relates to a drill rod technical field, concretely relates to prevent flat round pin groove fracture drill rod.

Background

The drill rod is a crushing tool for construction, and can impact an object under the coordination of a crushing hammer to crush the target object, so that the aims of punching and crushing are fulfilled.

If the utility model discloses a grant bulletin number is CN203750581U, the utility model patent of grant bulletin day 20140806 discloses a novel drill rod, including drill rod body, drill rod core hole, drill rod plug, its characterized in that, drill rod plug afterbody with the contact of drill rod core hole is personally submitted the curved surface setting, the drill rod plug top sets up to the cone, the contact is personally submitted the conical surface setting, the drill rod plug with the air guide recess has been opened at the drill rod core hole position that combines together, drill rod core hole diameter is 60mm ~120mm, and length is 350mm ~700mm, adopts this structural design's drill rod in life, all obtained great improvement in the work efficiency.

The drill rod flat pin groove part in the prior art is the weakest part of the whole drill rod, not only bears the impact force from a piston and the reaction force in the operation process, but also has transverse left and right torsion, so that the drill rod is extremely easy to transversely break, and becomes a restriction bottleneck in the development of the drill rod industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent flat round pin groove fracture drill rod to solve the above-mentioned weak point among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: the drill rod comprises a drill rod body, wherein the drill rod body comprises an end head part, a middle part and a tip part, two ends of the middle part are fixedly connected with the end head part and the tip part through bolts respectively, the end part comprises an end head, a forged flat pin groove in an annular structure is formed in the outer wall of the side face of the end head, and a flange plate I is integrally formed at the position, close to one end, of the outer wall of the side face of the end head.

Furthermore, the outer wall of the side face of the middle part is provided with a second flange plate which is integrally formed near the two ends, and the outer wall of one side of the second flange plate and the outer wall of one side of the first flange plate are provided with mounting holes which are distributed in an annular structure at equal intervals near the edge.

Furthermore, the pointed end portion comprises a conical head, an inner shell is sleeved outside the conical head, an outer shell is sleeved outside the inner shell, through holes distributed in an annular structure at equal intervals are formed in the outer wall of one side of the outer shell, and the through holes penetrate through the conical head and the inner shell.

Furthermore, key grooves are formed in the two ends of the middle part, key heads are integrally formed at one end of each conical head and one end of each end head, and the key heads are inserted into the key grooves in an inserting mode.

In the technical scheme, the utility model provides a pair of prevent flat round pin groove fracture drill rod has following beneficial effect: (1) through the arranged forging flat pin groove, when the drill rod is processed, the forging flat pin groove adopts a local forging processing technology, so that the transverse fracture of the flat pin groove is obviously reduced, the damage rate of the drill rod is greatly reduced, and the service life of the drill rod is further prolonged; (2) through the arranged tip part, when the drill rod is matched with a breaking hammer to impact an object, when the tip part is damaged or is ground flat, the tip part can be detached by the structure formed by the conical head, the inner shell and the outer shell, so that the whole tip part can continue to impact the object without detaching and grinding again, and the specifications of the tip part can be adjusted by the design of the inner shell and the outer shell, so that the drill rod can meet the breaking requirements of different requirements; (3) through the arranged first flange and the second flange, when the drill rod is damaged, the drill rod is in a split design due to the structure formed by the first flange and the second flange, the condition that one part of the drill rod is damaged and needs to be integrally replaced in the original mode is avoided, and resources are saved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of a main view structure of a drill rod for preventing a flat pin groove from being broken according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of an end portion provided in an embodiment of the flat pin groove fracture prevention drill rod of the present invention.

Fig. 3 is a schematic structural view of an intermediate portion of a drill rod for preventing a flat pin groove from being broken according to an embodiment of the present invention.

Fig. 4 is a sectional view of a tip structure provided in an embodiment of the flat pin groove fracture prevention drill rod of the present invention.

Description of reference numerals:

the drill rod comprises a drill rod body 1, end heads 2, an intermediate part 3, a tip part 4, an end head 5, a forged flat pin groove 6, a first flange plate 7, a key head 8, a second flange plate 9, a mounting hole 10, a key groove 11, a conical head 12, an inner shell 13, an outer shell 14 and a through hole 15.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the attached drawings.

As shown in FIGS. 1-4, the drill rod for preventing the breakage of the pin slot provided by the embodiment of the invention comprises a drill rod body 1, wherein the drill rod body 1 comprises an end part 2, a middle part 3 and a tip part 4, the end part 2, the middle part 3 and the tip part 4 are designed in a split type under the matching of a first flange plate 7 and a second flange plate 9, so that when the drill rod is damaged, only the damaged part needs to be replaced without being discarded integrally, the waste of resources is reduced, the two ends of the middle part 3 are fixedly connected with the end part 2 and the tip part 4 respectively through bolts, the end part 2 comprises an end head 5, a forging flat pin slot 6 in an annular structure is arranged on the outer wall of the side surface of the end 5, the forging flat pin slot 6 adopts a local forging processing technology, the transverse breakage of the flat pin slot is obviously reduced, the breakage rate of the drill rod is greatly reduced, the service life of the drill rod is further prolonged, the outer wall of the side surface of the end 5 is provided with the first flange plate 7 which is close to one end, the first flange 7 and the second flange 9 cooperate to join the end head portion 2 to the intermediate portion 3.

The utility model provides a pair of prevent cotter pin groove fracture drill rod, when processing this drill rod, forge cotter pin groove 6 and adopt local forging processing technology for cotter pin groove transverse fracture obviously reduces, makes drill rod spoilage greatly reduced, and then has prolonged the life of drill rod.

The utility model provides a further embodiment, as shown in fig. 3, 3 side outer walls of intermediate part are close to the equal integrated into one piece in both ends department and have two 9 of ring flanges, two 9 cooperation bolts of ring flange, ring flange 7 and through-hole 15 isotructures can be so that tip portion 2, pointed end portion 4 install on intermediate part 3, and ring flange two 9, ring flange 7 one side outer wall all set up the mounting hole 10 that the equidistance is the annular structure and distributes near the edge, mounting hole 10 is convenient for the bolt to pass ring flange 7 and ring flange two 9.

The utility model provides a further embodiment, as shown in fig. 4, pointed end 4 includes conical head 12, conical head 12 has cup jointed inner shell 13 in the outside, and inner shell 13 has cup jointed outer shell 14 in the outside, inner shell 13, the specification of pointed end 4 can be adjusted in the design of outer shell 14, make the drill rod can satisfy the broken requirement of different demands, simultaneously when drill rod cooperation quartering hammer striking object, when pointed end 4 is impaired or by the buffing, by conical head 12, the structure that inner shell 13 and outer shell 14 constitute can make this pointed end 4 dismantle, make need not to pull down whole pointed end 4 and polish again just can continue to strike the object, and set up on the outer wall of outer shell 14 one side the through-hole 15 that the equidistance is the annular structure and distributes, through-hole 15 cooperation bolt can make pointed end 4 install on intermediate part 3, through-hole 15 runs through a conical head 12 and inner shell 13.

The utility model provides a further embodiment, as shown in fig. 2-4, keyway 11 has all been seted up at intermediate part 3 both ends, keyway 11 cooperation key head can be fixed a position when end portion 2, intermediate part 3 and pointed end 4 are installed together, conical head 12, the equal integrated into one piece in end 5 one end have key head 8, when key head 8 cooperation keyway 11 can make the drill rod receive the moment of torsion, can not follow ring flange 7 between end portion 2, intermediate part 3 and the pointed end 4, ring flange two 9 junctions fracture, and key head 8 pegs graft inside keyway 11.

The working principle is as follows: when using this drill rod cooperation quartering hammer to smash the object to the object striking, the staff can adjust the size of cusp portion 4 through the demand to the object breakage, can twist off the bolt this moment, and whether select to install inner shell 13, shell 14 structure, thereby change the size of cusp portion 4, simultaneously can make need not whole when the drill rod is troweled and pull down and polish, make the drill rod can continue work, simultaneously when the drill rod is strikeed to the object, adopt the forging flat pin groove 6 of local forging processing technology processing, reducible flat pin groove transverse fracture obviously reduces, make the drill rod spoilage greatly reduced, and then prolonged life, later when the drill rod damage fracture, can take off cracked part through the cooperation of ring flange one 7 and ring flange two 9, then change new part, realize the drill rod and recycle, reduce the waste to the resource.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (4)

1. The drill rod capable of preventing the flat pin groove from being broken comprises a drill rod body (1) and is characterized in that the drill rod body (1) comprises an end head portion (2), a middle portion (3) and a tip portion (4), two ends of the middle portion (3) are fixedly connected with the end head portion (2) and the tip portion (4) through bolts respectively, the end head portion (2) comprises an end head (5), a forging flat pin groove (6) of an annular structure is formed in the outer wall of the side face of the end head (5), and a flange plate (7) is integrally formed at the position, close to one end, of the outer wall of the side face of the end head (5).

2. The drill rod capable of preventing the flat pin groove from being broken according to claim 1, wherein a second flange (9) is integrally formed on the outer wall of the side surface of the middle part (3) close to two ends, and mounting holes (10) which are distributed in an annular structure at equal intervals are formed in the outer wall of one side of the second flange (9) and the first flange (7) close to the edge.

3. The drill rod capable of preventing the pin-slot fracture as claimed in claim 2, wherein the tip portion (4) comprises a conical head (12), an inner shell (13) is sleeved outside the conical head (12), an outer shell (14) is sleeved outside the inner shell (13), through holes (15) distributed in an annular structure at equal intervals are formed in the outer wall of one side of the outer shell (14), and the conical head (12) and the inner shell (13) penetrate through the through holes (15).

4. The drill rod capable of preventing the flat pin groove from being broken according to claim 3, wherein key grooves (11) are formed in two ends of the middle part (3), the key heads (8) are integrally formed at one ends of the conical heads (12) and the end heads (5), and the key heads (8) are inserted into the key grooves (11).

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