CN218265792U - Drill cylinder convenient for replacing drill teeth - Google Patents

Abstract

The utility model provides a drill cylinder convenient for replacing drill teeth, belonging to the field of piling machinery; the barrel comprises a barrel body, wherein a plurality of tooth sockets are distributed at the front end of the barrel body in the circumferential direction, inner tooth seats or outer tooth seats are arranged in the tooth sockets through screws, and the inner tooth seats and the outer tooth seats are alternately arranged along the circumferential direction of the barrel body; the drilling blade arranged at the top end of the inner tooth base extends towards the inner side of the cylinder body, and the drilling blade arranged at the top end of the outer tooth base extends towards the outer side of the cylinder body; the two opposite sides of the tooth socket are respectively provided with a first concave part and a first convex part, the two opposite sides of the outer tooth base are respectively provided with a second convex part and a second concave part, the second convex part is matched with the first concave part, and the second concave part is matched with the first convex part. Through embedded toothholder or the outer toothholder in setting of detachable, specifically the tooth's socket inlays mutually with the toothholder, the bulge inlays mutually with the depressed part to through the screw pressfitting, compare with the help of the welding machine welding, not only easy and simple to handle, still reached the purpose that quick replacement bored the tooth.

Description

Drill cylinder convenient for replacing drill teeth

Technical Field

The utility model relates to a piling machinery field, concretely relates to bore a section of thick bamboo convenient to change and bore tooth.

Background

The chinese utility model with publication number CN204200090U specially does benefit to 2015, 03 months and 11 days discloses "a highway rig drill bit", and its specification specifically discloses "including barrel 1, barrel upper portion is equipped with internal thread or external screw thread in order to install on corresponding rig, and 1 bottom circumference of barrel distributes has eight toothholders, and the toothholder can form with barrel integrated processing, every toothholder all is equipped with a brill tooth, and the brill tooth specifically is columniform diamond compact piece, welds at corresponding toothholder".

In practical use, the fact that the drill teeth on the barrel are worn or even scrapped along with the continuous work of the drill barrel in the field operation process is found, and when the drill teeth are replaced, a welding machine is needed to complete welding, so that the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a pair of bore a section of thick bamboo convenient to change and bore tooth has solved when changing to current bore a section of thick bamboo and bores the tooth, needs the welding machine welding, the inconvenient technical problem of operation.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a drilling barrel convenient for replacing drilling teeth comprises a barrel body, wherein a plurality of tooth grooves are circumferentially distributed at the front end of the barrel body, inner tooth seats or outer tooth seats are arranged in the tooth grooves through screws, and the inner tooth seats and the outer tooth seats are alternately arranged along the circumferential direction of the barrel body; the drilling blade arranged at the top end of the inner tooth base extends towards the inner side of the cylinder body, and the drilling blade arranged at the top end of the outer tooth base extends towards the outer side of the cylinder body; the two opposite sides of the tooth socket are respectively provided with a first concave part and a first convex part, the two opposite sides of the outer tooth holder are respectively provided with a second convex part and a second concave part, the second convex part is matched with the first concave part, and the second concave part is matched with the first convex part; and the two opposite sides of the inner tooth holder are also provided with a second convex part and a second concave part which have the same structure as the outer tooth holder.

Optionally, a first half-taper hole communicated with the tooth socket is formed in the top end of the first protruding portion, and a screw hole is further formed in the bottom surface of the first half-taper hole; the top end of the second concave part is provided with a second half taper hole matched with the first half taper hole; and a taper sleeve is embedded between the adjacent first half taper hole and the second half taper hole through a screw, and the screw penetrates through the taper sleeve and is in threaded connection with the screw hole.

Optionally, the top surface of the taper sleeve is provided with a countersunk hole, and the screw penetrates through the taper sleeve through the countersunk hole and is in threaded connection with the screw hole.

Optionally, a protective cover is further disposed on the taper sleeve, and the protective cover is in threaded connection with the counter bore to seal the counter bore.

Optionally, the protection cover deviates from one side of the counter sink and is provided with a first straight line groove, so that the protection cover can be conveniently disassembled and assembled.

Optionally, a second linear groove is formed in one side, close to the counter sink, of the protective cover, and the second linear groove corresponds to the first linear groove in position.

Optionally, the outer walls of the inner tooth holder and the outer tooth holder are respectively provided with secondary teeth.

According to the technical scheme, the beneficial effects of the utility model are that:

the utility model provides a drill cylinder convenient for replacing drill teeth, which comprises a cylinder body, wherein a plurality of tooth grooves are circumferentially distributed at the front end of the cylinder body, inner tooth seats or outer tooth seats are arranged in the tooth grooves through screws, and the inner tooth seats and the outer tooth seats are alternately arranged along the circumferential direction of the cylinder body; the drilling blade arranged at the top end of the inner tooth base extends towards the inner side of the cylinder body, and the drilling blade arranged at the top end of the outer tooth base extends towards the outer side of the cylinder body; the two opposite sides of the tooth socket are respectively provided with a first concave part and a first convex part, the two opposite sides of the outer tooth holder are respectively provided with a second convex part and a second concave part, the second convex part is matched with the first concave part, and the second concave part is matched with the first convex part; and the two opposite sides of the inner tooth holder are also provided with a second convex part and a second concave part which have the same structure as the outer tooth holder. Through embedded toothholder or the outer toothholder in setting of detachable, specifically the tooth's socket inlays mutually with the toothholder, the bulge inlays mutually with the depressed part to through the screw pressfitting, compare with the help of the welding machine welding, not only easy and simple to handle, still reached the purpose that quick replacement bored the tooth.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is an exploded view of a drill barrel for facilitating bit replacement;

FIG. 2 is a schematic perspective view of a drill barrel;

FIG. 3 is a schematic structural view of an external toothholder;

FIG. 4 is a top plan view of a drill barrel for facilitating replacement of the drill teeth;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is a perspective view of another embodiment of a drill bit for facilitating the replacement of drill teeth;

FIG. 7 is an enlarged view at B in FIG. 6;

FIG. 8 is a schematic structural diagram of a protective cover;

reference numerals are as follows:

1-cylinder, 2-inner toothholder, 3-outer toothholder, 4-drilling edge, 5-taper sleeve, 6-protective cover, 7-auxiliary tooth;

11-tooth groove, 12-first concave part, 13-first convex part, 14-first half taper hole, 31-second convex part, 32-second concave part, 33-second half taper hole, 61-first straight line groove and 62-second straight line groove.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.

The first embodiment is as follows:

referring to fig. 1-5, the present invention provides a drill cylinder with easily replaceable drill teeth, which includes a cylinder body 1. A plurality of tooth sockets 11 are circumferentially distributed at the front end of the barrel body 1, an inner tooth holder 2 or an outer tooth holder 3 is arranged in the tooth sockets 11 through screws, and the inner tooth holder 2 and the outer tooth holder 3 are alternately arranged along the circumferential direction of the barrel body 1. Wherein, the drilling sword that 2 tops of interior toothholder set up extends to 1 inboards of barrel, the drilling sword that 3 tops of outer toothholder set up extends to 1 outside of barrel to make and inwards and outwards act on respectively through the drilling sword of interior toothholder and the drilling sword of outer toothholder at drilling process, cutting area is bigger, can be inside and outside simultaneously when highway drilling, drilling speed is fast, simultaneously because the slope of interior, external tooth sets up the cement resistance that the stack shell received when making the drilling of a drill section of thick bamboo littleer, the drilling section of thick bamboo is not fragile, life is longer. A first concave part 12 and a first convex part 13 are respectively arranged on two opposite sides of the tooth socket 11, a second convex part 31 and a second concave part 32 are respectively arranged on two opposite sides of the outer tooth holder 3, the second convex part 31 is matched with the first concave part 12, and the second concave part 32 is matched with the first convex part 13; the opposite sides of the inner tooth socket 2 are also provided with a second convex portion 31 and a second concave portion 32 which have the same structure as the outer tooth socket 3. Through the embedded toothholder 2 or the outer toothholder 3 in setting up of detachable, specifically the tooth's socket inlays mutually with the toothholder in order to restrict the toothholder along boring a section of thick bamboo circumference rotation degree of freedom, and the bulge inlays mutually with the depressed part in order to restrict the toothholder along boring a section of thick bamboo radial displacement degree of freedom to compare with the welding machine welding with the help of restricting toothholder along boring a section of thick bamboo axial displacement degree of freedom through the screw pressfitting, not only easy and simple to handle, still reached the purpose of quick replacement brill tooth.

Specifically, referring to fig. 6-7, a first half taper hole 14 communicated with the tooth socket 11 is formed at the top end of the first protruding portion 13, and a screw hole is further formed at the bottom surface of the first half taper hole 14, that is, a taper hole and a screw hole are formed on the side wall of the tooth socket 11; the top end of the second concave part 32 is provided with a second half-taper hole 33 matched with the first half-taper hole 14; it still inlays and is equipped with taper sleeve 5 through the screw between the half taper hole 14 of first and the half taper hole 33 of second that lie in adjacent and opposite directions setting in same tooth's socket 11, the screw runs through behind the taper sleeve 5 with screw threaded connection to it is spacing to mutually support through taper sleeve 5, half taper hole 14 of first and the half taper hole 33 of second, closely inlays the toothholder in tooth's socket 11.

Example two:

in this embodiment, a countersunk hole is formed in the top surface of the taper sleeve 5, the screw penetrates through the taper sleeve 5 through the countersunk hole and is in threaded connection with the screw hole, preferably, an inner hexagonal screw is used as the screw, and the head of the inner hexagonal screw is completely embedded into the countersunk hole, as shown in fig. 1. The screw is protected by the countersunk hole, so that the friction contact between the screw and chips is reduced, and the abrasion is reduced. Further, referring to fig. 8, when the drill cylinder is in contact with the underground water and soil structure for a long time, the screw is easily corroded by underground water, geothermal heat, acid and alkali soil, and the screw is easily blocked by chips generated by the drill cylinder, so that the screw is difficult to remove after the drill teeth are worn. Therefore, the taper sleeve 5 is further provided with a protective cover 6, the periphery of the protective cover 6 is provided with external threads, the inner wall of the counter bore is provided with internal threads, the protective cover 6 is in threaded connection with the counter bore and is used for sealing the counter bore, so that underground water vapor, acid and alkaline earth and stone structures and the like are prevented from corroding screws in the counter bore, and meanwhile, the embarrassment that a wrench tool is difficult to stretch into due to the fact that fine broken earth and stones block the head of the screw is also prevented from happening. Specifically, one side of the protection cover 6, which is away from the counter bore, is provided with a first straight line groove 61, so that the protection cover 6 can be conveniently disassembled and assembled. Preferably, a second linear groove 62 is formed on one side of the protective cover 6 close to the countersunk hole, and the second linear groove 62 corresponds to the first linear groove 61 in position. The thickness of the protective cover 6 is reduced by the second linear groove 62, so that a violent removal, i.e. a splitting of the protective cover 6 by means of a tool, is selected if necessary. Adopt the sealed mode of visor 6, visor 6 outside still with underground earth and rockfill structure direct contact, then visor 6 also easily receives the corruption harm, when visor 6 corrodes, can unscrew the screw after violently demolising, later the whole toothholder of changing can.

Example three:

in this embodiment, which is an improvement of the first embodiment or the second embodiment, referring to fig. 6, the outer walls of the inner tooth holder 2 and the outer tooth holder 3 are respectively provided with the secondary teeth 7, and preferably, the secondary teeth 7 are integrally provided with the tooth holders, such as by welding. The auxiliary teeth 7 are additionally arranged on the outer side of the tooth holder, and on one hand, the auxiliary teeth 7 can increase the cutting area of the drill cylinder to be larger; on the other hand, when dismantling the toothholder, the accessible instrument strikes vice tooth 7 bottom to be convenient for toothholder bottom surface and 11 bottom surfaces of tooth's socket break away from and form the gap, and then be convenient for the crow bar to execute the work, the setting of vice tooth 7 can make things convenient for the dismantlement operation of toothholder promptly.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included in the scope of the claims and description of the present invention.

Claims (7)

1. The drilling barrel convenient for replacing the drilling teeth is characterized by comprising a barrel body (1), wherein a plurality of tooth grooves (11) are circumferentially distributed at the front end of the barrel body (1), inner tooth holders (2) or outer tooth holders (3) are arranged in the tooth grooves (11) through screws, and the inner tooth holders (2) and the outer tooth holders (3) are alternately arranged along the circumferential direction of the barrel body (1); the drilling blade arranged at the top end of the inner tooth holder (2) extends towards the inner side of the cylinder body (1), and the drilling blade arranged at the top end of the outer tooth holder (3) extends towards the outer side of the cylinder body (1); a first concave part (12) and a first convex part (13) are respectively arranged on two opposite sides of the tooth socket (11), a second convex part (31) and a second concave part (32) are respectively arranged on two opposite sides of the outer tooth holder (3), the second convex part (31) is matched with the first concave part (12), and the second concave part (32) is matched with the first convex part (13); and the two opposite sides of the inner tooth holder (2) are also provided with a second convex part (31) and a second concave part (32) which have the same structure with the outer tooth holder (3).

2. The drill cylinder convenient for replacing the drill teeth is characterized in that a first half-taper hole (14) communicated with the tooth groove (11) is formed in the top end of the first protruding portion (13), and a screw hole is further formed in the bottom surface of the first half-taper hole (14); the top end of the second concave part (32) is provided with a second half taper hole (33) matched with the first half taper hole (14); and a taper sleeve (5) is embedded between the first half taper hole (14) and the second half taper hole (33) through a screw, and the screw penetrates through the taper sleeve (5) and then is in threaded connection with the screw hole.

3. The drill cylinder convenient for replacing the drill teeth as claimed in claim 2, wherein the top surface of the taper sleeve (5) is provided with a countersunk hole, and the screw penetrates through the taper sleeve (5) through the countersunk hole and is in threaded connection with the screw hole.

4. A drill cylinder facilitating the replacement of a drill tooth according to claim 3, characterized in that a protective cap (6) is further provided on the taper sleeve (5), and the protective cap (6) is threadedly connected with a counter bore for sealing the counter bore.

5. Drill cylinder facilitating the replacement of drill teeth according to claim 4, characterised in that the protective cap (6) is provided with a first straight line groove (61) on the side facing away from the counter bore, in order to facilitate the removal of the protective cap (6).

6. A drill cylinder facilitating the replacement of drill teeth according to claim 5, characterized in that the protective cover (6) is provided with a second linear groove (62) on the side close to the countersunk hole, and the second linear groove (62) corresponds to the first linear groove (61).

7. A drill cylinder facilitating the replacement of a drill tooth according to any of claims 1-6, characterized in that the outer walls of the inner (2) and outer (3) tooth holders are each provided with secondary teeth (7).

Images