CN217080389U

CN217080389U - Improved core drill barrel structure

Info

Publication number: CN217080389U
Application number: CN202220851345.8U
Authority: CN
Inventors: 金强
Original assignee: Chongqing Huatung Intelligent Equipment Co ltd
Current assignee: Chongqing Huatung Intelligent Equipment Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-07-29
Anticipated expiration: 2032-04-12

Abstract

The utility model provides an improved core drill barrel structure, which comprises a drill barrel and a catcher; the front end of the drill cylinder is provided with a blade; the rear end of the drill cylinder is detachably connected with the front end of the catcher, and the rear end of the catcher is provided with a connecting part used for detachably connecting with a power head of a drilling machine; the rear end of the drill cylinder is provided with a first conical ring, the front end of the catcher is provided with a second conical ring, and the first conical ring is matched with the second conical ring so that the first conical ring can be tightly connected with the second conical ring. The first conical ring and the second conical ring are arranged, so that the catcher and the drill cylinder can be ensured to be concentric while being connected and transmitting torque; even if the drill cylinder is disassembled and assembled for many times, the concentricity cannot be lost.

Description

Improved core drill barrel structure

Technical Field

The utility model relates to the technical field of mechanical engineering, concretely relates to modified core drill section of thick bamboo structure.

Background

In engineering construction, various drilling needs are encountered, for which the difficulty is greatest. The main problems are that the core drilling speed is high generally, the drill cylinder is worn and generates heat seriously, and therefore, the requirement on the core drill cylinder is high.

The structure of the conventional core drill barrel is shown in figure 4: the barrel body 8 is long, and the drill bit 9 is short; relatively speaking, the drill bit 9 of the conventional core drill barrel is weak, the drill bit 9 is arranged at the front end of the barrel body 8, the abrasion time of the drill bit 9 is the longest in the whole core drilling process, the inner wall and the outer wall of the drill bit 9 are ground by rocks, and the abrasion and the heat generation are serious, so that the drill bit 9 is deformed and scrapped in advance. Particularly, the connecting part of the drill bit 9 and the barrel body 8 is positioned at the front end of the whole core drill, and the wall thickness of the connecting part is about half of that of the whole barrel body 8, so that the connecting part has weaker strength and is the most easily damaged part, and the problems of wearing, deformation, thread locking, incapability of dismounting and the like are caused; in addition, the connection between the drill bit 9 and the barrel 8 of the conventional core drill barrel is a threaded connection, but the concentricity is not good only by means of the threaded connection; furthermore, the inner and outer walls of the threaded connection (i.e., the portion of the barrel 8 for threaded connection with the drill bit 9) are subjected to frequent grinding, and the threads are very easily scrapped due to the heat generated by the high-speed rotation of the whole core drill barrel, so that the drill bit 9 is very easily deformed.

Under the application number of CN202011274275.6, the name is: the utility model provides a patent of rig of a core drill section of thick bamboo convenient to cooling, its direct surface cooling to the drill bit through a plurality of cooling tubes to play and reduce the drill bit wearing and tearing, long service life and energy saving consume's effect, but the cost is higher, is unfavorable for the popularization.

Under the application number of CN201811192110.7, the name is: the utility model provides a patent for intelligent rock drilling equipment of geological exploration, its is bored a section of thick bamboo and is equipped with the sleeve in water injection chamber through the coring that is equipped with the through-hole, and the core is bored a section of thick bamboo through the water pump with the cooling water injection, not only can cool off and get a core and bore a section of thick bamboo, has better dust fall effect moreover, and a section of thick bamboo life is bored in the extension, but the cost is higher, is unfavorable for promoting.

Accordingly, there is a need for an improved core barrel construction that increases the useful life of the barrel.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides an improved core drill barrel structure, which comprises a drill barrel and a catcher; a blade is arranged at the front end of the drill cylinder; the rear end of the drill cylinder is detachably connected with the front end of the adapter, and the rear end of the adapter is provided with a connecting part which is detachably connected with a power head of a drilling machine; the rear end of the drill cylinder is provided with a first conical ring, the front end of the connecting handle is provided with a second conical ring, and the first conical ring is matched with the second conical ring so that the first conical ring can be tightly connected with the second conical ring.

As optimization, the rear end of the first conical ring is integrally connected with a first threaded ring, and the rear end of the first threaded ring is integrally connected with the front end of the catcher; the front end of the second conical ring is integrally connected with a second threaded ring, and the front end of the second threaded ring is integrally connected with the rear end of the drill cylinder; the threads on the first threaded ring are capable of mating connection with the threads on the second threaded ring.

Preferably, the length of the drill barrel is larger than that of the catcher; and the length of the drill cylinder is more than five times that of the catcher.

As optimization, the second conical ring is arranged in a trend that the inner side is inclined to the outer side from back to front; the first conical ring is arranged from back to front in a trend that the inner side inclines to the outer side.

As optimization, the second conical ring is arranged in a trend of inclining from the outer side to the inner side from back to front; the first conical ring is arranged from back to front in a trend of inclining from the outer side to the inner side.

Preferably, the inner side surface of the second conical ring is tightly connected with the outer side surface of the first conical ring.

Preferably, the outer side surface of the second conical ring is tightly connected with the inner side surface of the first conical ring.

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

(1) when the utility model is used, the arrangement of the first conical ring and the second conical ring can ensure that the catcher and the drill cylinder can keep concentric while connecting and transmitting torque; even if the drill cylinder is disassembled and assembled for many times, the concentricity cannot be lost.

(2) The utility model discloses when using, the blade setting is at the front end of boring a section of thick bamboo, and the catcher sets up in the pivoted rear end, and because the length of boring a section of thick bamboo is far greater than the length of catcher, makes the catcher keep away from the blade with the connection position of boring a section of thick bamboo, consequently, should connect the position by the frequency of rock wearing and tearing much littleer, connect the position moreover and keep away from the high-temperature region that generates heat of the blade of boring a section of thick bamboo, guarantee that the screw thread of connection structure department can not warp, fine assurance bore a lot of dismantlement demand of a section of thick bamboo, increase life.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a general schematic view of an improved core barrel construction of the present invention;

fig. 2 is a schematic structural view of a first conical ring of the present invention;

fig. 3 is a schematic structural view of a second conical ring of the present invention;

fig. 4 is a schematic structural diagram of a prior art drill barrel.

Reference numerals:

1-a drill cylinder, 2-a catcher, 21-a connecting part, 3-a blade, 4-a first conical ring, 5-a second conical ring, 6-a first threaded ring and 7-a second threaded ring;

8-cylinder body, 9-drill bit.

Detailed Description

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

Example (b): as shown in fig. 1, fig. 2 and fig. 3, the present invention provides the following technical solutions: an improved core drill barrel structure comprises a drill barrel 1 and a catcher 2. The front end of the drill barrel 1 is provided with a blade 3. The rear end of the drill barrel 1 is detachably connected with the front end of the joint 2, and the rear end of the joint 2 is provided with a connecting part 21 detachably connected with a power head (not shown) of a drilling machine. Wherein, the rear end of boring a section of thick bamboo 1 is equipped with first circular cone ring 4, the front end of catcher 2 is equipped with second circular cone ring 5, and when catcher 2 and boring a section of thick bamboo 1 were installed together, the ring center of first circular cone ring 4 and the ring center of second circular cone ring 5 were on same axis, first circular cone ring 4 and second circular cone ring 5 are matched with so that first circular cone ring 4 can with second circular cone ring 5 zonulae occludens.

In the application, the first conical ring and the second conical ring are tightly connected and coaxially arranged, so that the catcher and the drill cylinder can be kept concentric while connecting and transmitting torque; even if the drill cylinder is disassembled and assembled for many times, the concentricity cannot be lost.

Specifically, as shown in fig. 2 and 3, a first threaded ring 6 is integrally connected to a rear end of the first conical ring 4, and a rear end of the first threaded ring 6 is integrally connected to a front end of the adaptor 2. The front end of the second conical ring 5 is integrally connected with a second threaded ring 7, and the front end of the second threaded ring 7 is integrally connected with the rear end of the drill barrel 1. The threads on the first threaded ring 6 can be coupled to the threads on the second threaded ring 7.

Therefore, the novel combined type concrete pouring device has the advantage of convenience in disassembly, and is beneficial to shortening the construction period and improving the working efficiency in actual work.

Specifically, as shown in fig. 1, the length of the drill barrel 1 is greater than the length of the catcher 2; and the length of the drill barrel 1 is more than five times that of the catcher 2.

In this application, because the length of boring a section of thick bamboo is far away from the length of catcher, the blade is kept away from to the joint site that makes catcher and bore a section of thick bamboo, consequently, the frequency that should connect the site by rock wearing and tearing will be much littleer, and the joint site is kept away from the high temperature area that generates heat of the blade of boring a section of thick bamboo moreover, guarantees that the screw thread of connection structure department can not warp, fine assurance a lot of dismantlement demand of boring a section of thick bamboo, increase life.

In one embodiment of the present application, the second conical ring 5 is disposed in a direction from back to front, from inside to outside; the first conical ring 4 is arranged from back to front in a trend of inclining from the inner side to the outer side.

(this embodiment is not shown)

In a preferred embodiment of the present application, as shown in fig. 1, 2 and 3, the second conical ring 5 is disposed in a direction from the rear to the front, from the outer side to the inner side; the first conical ring 4 is arranged in a trend of inclining from the outer side to the inner side from back to front. Therefore, the diameter of the catcher 2 is smaller than that of the second threaded ring 7, the installation of the catcher 2 and the drill barrel 1 is more convenient under the condition that the length of the catcher 2 is far smaller than that of the drill barrel 1, and the installed connecting effect is good and firmer.

In one embodiment of the application, the second threaded ring 7 has an internal diameter greater than the diameter of the first threaded ring 6, the internal side of the second conical ring 5 being tightly connected to the external side of the first conical ring 4. (this embodiment is not shown)

In a preferred embodiment of the present application, as shown in fig. 1, 2 and 3, the diameter of the second threaded ring 7 is smaller than the inner diameter of the first threaded ring 6, and the outer side of the second conical ring 5 is tightly connected to the inner side of the first conical ring 4. Therefore, the front end of the catcher 2 is inserted into the rear end of the drill barrel 1, the installation of the catcher 2 and the drill barrel 1 is more convenient under the condition that the length of the catcher 2 is far smaller than that of the drill barrel 1, and the connection effect after the installation is good and firmer; in addition, because the rear end of the adapter 2 is used for being connected with the power head of the drilling machine, when the power head of the drilling machine drives the adapter 2 to rotate, the adapter 2 drives the drill barrel 1 to rotate from the inside of the drill barrel 1, and the torque transmission effect among the power head of the drilling machine, the adapter 2 and the drill barrel 1 is better.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the following embodiments, it will be understood by those skilled in the art that: the technical solutions described in the following embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. An improved core drill barrel structure is characterized by comprising a drill barrel and a catcher; the front end of the drill cylinder is provided with a blade; the rear end of the drill cylinder is detachably connected with the front end of the adapter, and the rear end of the adapter is provided with a connecting part which is detachably connected with a power head of a drilling machine; the rear end of the drill cylinder is provided with a first conical ring, the front end of the catcher is provided with a second conical ring, and the first conical ring is matched with the second conical ring so that the first conical ring can be tightly connected with the second conical ring.

2. The improved core barrel structure as recited in claim 1, wherein said first conical ring has a first threaded ring integrally connected to a rear end thereof, said first threaded ring having a rear end integrally connected to a front end of said catcher; the front end of the second conical ring is integrally connected with a second threaded ring, and the front end of the second threaded ring is integrally connected with the rear end of the drill cylinder; the threads on the first threaded ring are capable of mating connection with the threads on the second threaded ring.

3. An improved coring bit barrel configuration as set forth in claim 1, wherein the length of the bit barrel is greater than the length of the catcher; and the length of the drill cylinder is more than five times that of the catcher.

4. An improved coring bit barrel configuration as set forth in claim 1, wherein said second conical ring is disposed in a rear-to-front inside-to-outside trend; the first conical ring is arranged from back to front in a trend that the inner side inclines to the outer side.

5. An improved coring bit barrel configuration as set forth in claim 1, wherein said second conical ring is disposed in a rear-to-front outer-to-inner trend; the first conical ring is arranged from back to front in a trend of inclining from the outer side to the inner side.

6. An improved coring bit barrel configuration as set forth in any one of claims 4 or 5 wherein the inner side of the second conical ring is closely adjacent to the outer side of the first conical ring.

7. An improved coring bit barrel configuration as set forth in any one of claims 4 or 5 wherein the outer side of the second conical ring is closely adjacent to the inner side of the first conical ring.