CN216553808U

CN216553808U - Hobbing cutter on reverse circulation drilling machine for breaking high-hardness rock

Info

Publication number: CN216553808U
Application number: CN202122948146.7U
Authority: CN
Inventors: 胡永锋; 徐顺青; 沈鹤
Original assignee: Master Drilling Engineering Changzhou Co ltd
Current assignee: Master Drilling Engineering Changzhou Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-17
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a hob for a reverse circulation drilling machine for breaking high-hardness rocks, which comprises a main shaft, a hob shell, rock breaking teeth, hob seat connecting holes and a connecting mechanism, wherein the hob shell is movably sleeved at the center of the surface of the main shaft, the rock breaking teeth are fixedly connected to the outer surface of the hob shell, the two hob seat connecting holes are formed in the left side and the right side of the front surface of the main shaft, the hob shell is connected with the main shaft through the connecting mechanism, and the connecting mechanism comprises a limiting plate, an insert block, an inserting groove, a through groove, a telescopic rod, an installing plate, a spring, a positioning block, a positioning groove, a guide wheel, a rope and a handle. According to the tool holder, the tool holder can be conveniently detached from the spindle through mutual matching of the spindle, the tool holder shell, the rock breaking teeth, the tool holder connecting hole, the connecting mechanism, the limiting plate, the inserting block, the inserting groove, the through groove, the telescopic rod, the mounting plate, the spring, the positioning block, the positioning groove, the guide wheel, the rope and the handle, and great convenience is brought to a user.

Description

Hobbing cutter on reverse circulation drilling machine for breaking high-hardness rock

Technical Field

The utility model relates to the technical field of hobs, in particular to a hob for a reverse circulation drilling machine for breaking high-hardness rocks.

Background

The hob is a gear processing cutter with cutter teeth arranged along a spiral line of a cylinder or a cone, and is used for processing cylindrical gears, worm gears and other cylindrical toothed workpieces (see gear processing and gears) according to a generating method. According to different applications, the hob is divided into gear hob, worm hob, non-involute generating hob, fixed hob and the like.

By way of retrieval, patent application No. CN201910667019.4 discloses a hob for a reverse circulation drilling machine for breaking extremely hard rock, comprising a main shaft, a hob housing and rock breaking teeth. The knife shell comprises a main knife shell and a back knife shell which are arranged adjacently; the rock breaking teeth comprise main teeth arranged on the main cutter shell and back teeth arranged on the back cutter shell; the height of the main tooth head of each main tooth protruding out of the outer peripheral surface of the main cutter shell is 12.5-15 mm, the radius of the bottom of the main tooth head is 18-20 mm, the top surface of the main tooth head is a spherical arc surface with the radius of 5-6 mm, and the side surface of the main tooth head is a spherical arc surface which is smoothly connected with the top surface and has the radius of 20-30 mm; the back teeth are embedded in two circles of back tooth holes formed in the outer peripheral surface of the back cutter shell, and the distance between the two circles of back tooth holes is 15-20 mm and the two circles of back tooth holes are arranged in a staggered mode; the tooth root of each back tooth is a cylinder, and the tooth head of each back tooth is a hemisphere. The hob can realize rock breaking of rock with the compressive strength of more than 160MPa when the drilling machine applies 1.5-3 times of the compressive strength of the rock.

However, in practical use, the above solution has the following disadvantages: the cutter shell can not be conveniently detached from the main shaft, and great inconvenience is further caused to a user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hob on a reverse circulation drilling machine for breaking rock with higher hardness so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a hob for a reverse circulation drilling machine for breaking high-hardness rocks comprises a main shaft, a hob shell, rock breaking teeth, cutter holder connecting holes and a connecting mechanism, wherein the hob shell is movably sleeved at the center of the surface of the main shaft, the rock breaking teeth are fixedly connected to the outer surface of the hob shell, the left side and the right side of the front surface of the main shaft are provided with the two cutter holder connecting holes, and the hob shell is connected with the main shaft through the connecting mechanism;

the connecting mechanism comprises a limiting plate, inserting blocks, inserting grooves, through grooves, a telescopic rod, a mounting plate, a spring, a positioning block, a positioning groove, a guide wheel, a rope and a handle, the top and the bottom of the spindle are fixedly connected with the limiting plate on the right side of the cutter shell, the left side of the limiting plate is fixedly connected with two inserting blocks, the inserting grooves are formed in the positions, corresponding to the inserting blocks, on the right side of the cutter shell, the left sides of the inserting blocks penetrate through the inserting grooves and extend into the inserting grooves, the through grooves are formed in the top and the bottom of the left side of the cutter shell, the telescopic rod is fixedly connected to one side, far away from the spindle, of the inner wall of each through groove, the mounting plate is fixedly connected to one end, close to the spindle, of the telescopic rod, the spring is sleeved on the surface of the mounting plate, the positioning block is fixedly connected to the center, far away from one side of the telescopic rod, the top and the bottom of the spindle and the positions, corresponding to the positioning blocks, are respectively provided with the positioning grooves, one side that the locating piece is close to the constant head tank runs through logical groove and constant head tank in proper order and extends to the inside of constant head tank, lead to the fixedly connected with leading wheel that inslot wall left side just corresponds the telescopic link, the left side fixedly connected with rope that the mounting panel is close to telescopic link one side, the one end fixedly connected with handle of mounting panel is kept away from to the rope, swing joint between rope and the leading wheel.

Preferably, the limiting plate is movably connected with the cutter shell.

Preferably, the insertion block is movably connected with the slot.

Preferably, the surface of the mounting plate is movably connected with the inner wall of the through groove.

Preferably, the positioning block is movably connected with the positioning groove.

Preferably, the positioning block is movably connected with the through groove.

Preferably, the surface of the handle is movably connected with the inner wall of the through groove.

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

according to the tool holder, the tool holder can be conveniently detached from the spindle through mutual matching of the spindle, the tool holder shell, the rock breaking teeth, the tool holder connecting hole, the connecting mechanism, the limiting plate, the inserting block, the inserting groove, the through groove, the telescopic rod, the mounting plate, the spring, the positioning block, the positioning groove, the guide wheel, the rope and the handle, and great convenience is brought to a user.

Drawings

FIG. 1 is a structural cross-sectional view in elevation of the present invention;

FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of B in FIG. 1 according to the present invention.

In the figure: the tool comprises a main shaft 1, a tool case 2, a rock breaking tooth 3, a tool apron connecting hole 4, a connecting mechanism 5, a limiting plate 501, an insert block 502, an insert slot 503, a through slot 504, a telescopic rod 505, a mounting plate 506, a spring 507, a positioning block 508, a positioning groove 509, a guide wheel 510, a rope 511 and a handle 512.

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.

Referring to fig. 1-3, a hob for a reverse circulation drilling machine for breaking high hardness rock includes a main shaft 1, a hob housing 2, rock breaking teeth 3, hob holder connection holes 4 and a connection mechanism 5, wherein the hob housing 2 is movably sleeved at the center of the surface of the main shaft 1, the rock breaking teeth 3 are fixedly connected to the outer surface of the hob housing 2, two hob holder connection holes 4 are respectively formed in the left side and the right side of the front surface of the main shaft 1, and the hob housing 2 is connected with the main shaft 1 through the connection mechanism 5.

The connecting mechanism 5 comprises a limit plate 501, insert blocks 502, slots 503, a through groove 504, a telescopic rod 505, a mounting plate 506, a spring 507, a positioning block 508, a positioning groove 509, a guide wheel 510, a rope 511 and a handle 512, wherein the limit plate 501 is fixedly connected with the top and the bottom of the spindle 1 and positioned at the right side of the knife housing 2, the limit plate 501 is movably connected with the knife housing 2, two insert blocks 502 are fixedly connected with the left side of the limit plate 501, slots 503 are respectively arranged at the right side of the knife housing 2 and corresponding to the positions of the insert blocks 502, the left side of the insert block 502 penetrates through the slots 503 and extends into the slots 503, the insert blocks 502 are movably connected with the slots 503, the top and the bottom of the left side of the knife housing 2 are respectively provided with the through groove 504, the telescopic rod 505 is fixedly connected with one side of the inner wall of the through groove 504 far away from the spindle 1, the mounting plate 506 is fixedly connected with one end of the telescopic rod 505 close to the spindle 1, and the surface of the mounting plate 506 is movably connected with the inner wall of the through groove 504, the surface cover of telescopic link 505 is equipped with spring 507, the center department fixedly connected with locating piece 508 of telescopic link 505 one side is kept away from to mounting panel 506, constant head tank 509 has all been seted up to main shaft 1 top and bottom and the position that corresponds locating piece 508, one side that locating piece 508 is close to constant head tank 509 runs through logical groove 504 and constant head tank 509 in proper order and extends to the inside of constant head tank 509, swing joint between locating piece 508 and the logical groove 504, lead to groove 504 inner wall left side and correspond telescopic link 505's fixed connection has leading wheel 510, the left side fixedly connected with rope 511 that mounting panel 506 is close to telescopic link 505 one side, the one end fixedly connected with handle 512 of mounting panel 506 is kept away from to rope 511, swing joint between the surface of handle 512 and the inner wall that leads to groove 504, swing joint between rope 511 and the leading wheel 510.

During the use, when needs dismantle sword shell 2, only need to pull handle 512 to the left side, and then the other end through rope 511 pulls mounting panel 506 and locating piece 508 in proper order and moves to the one side of keeping away from constant head tank 509, compresses telescopic link 505 and spring 507 simultaneously, and then makes locating piece 508 break away from constant head tank 509, then pulls sword shell 2 to the left side, can make sword shell 2 break away from main shaft 1 to can take off sword shell 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hobbing cutter on reverse circulation rig for breaking higher hardness rock, includes main shaft (1), sword shell (2), broken rock tooth (3), blade holder connecting hole (4) and coupling mechanism (5), its characterized in that: a cutter shell (2) is movably sleeved at the center of the surface of the main shaft (1), rock breaking teeth (3) are fixedly connected to the outer surface of the cutter shell (2), two cutter holder connecting holes (4) are formed in the left side and the right side of the front surface of the main shaft (1), and the cutter shell (2) is connected with the main shaft (1) through a connecting mechanism (5);

the connecting mechanism (5) comprises a limiting plate (501), inserting blocks (502), slots (503), a through groove (504), a telescopic rod (505), a mounting plate (506), a spring (507), a positioning block (508), a positioning groove (509), a guide wheel (510), a rope (511) and a handle (512), the top and the bottom of the spindle (1) are both fixedly connected with the limiting plate (501) on the right side of the cutter housing (2), the left side of the limiting plate (501) is fixedly connected with the two inserting blocks (502), the slots (503) are both arranged on the right side of the cutter housing (2) and correspond to the positions of the inserting blocks (502), the left side of the inserting blocks (502) penetrates through the slots (503) and extends to the inside of the slots (503), the through groove (504) is both arranged on the top and the bottom of the left side of the cutter housing (2), the telescopic rod (505) is fixedly connected to one side of the inner wall of the through groove (504) far away from the spindle (1), the telescopic link (505) is close to one end fixedly connected with mounting panel (506) of main shaft (1), the surface cover of telescopic link (505) is equipped with spring (507), the center department fixedly connected with locating piece (508) of telescopic link (505) one side is kept away from to mounting panel (506), constant head tank (509) have all been seted up to main shaft (1) top and bottom and corresponding position of locating piece (508), one side that locating piece (508) is close to constant head tank (509) runs through logical groove (504) and constant head tank (509) in proper order and extends to the inside of constant head tank (509), lead to groove (504) inner wall left side and correspond the position fixedly connected with leading wheel (510) of telescopic link (505), the left side fixedly connected with rope (511) of telescopic link (505) one side is close to mounting panel (506), the one end fixedly connected with handle (512) of mounting panel (506) is kept away from to rope (511), the rope (511) is movably connected with the guide wheel (510).

2. The rotary cutter on a reverse circulation drilling machine for breaking higher hardness rock according to claim 1, wherein: the limiting plate (501) is movably connected with the knife shell (2).

3. The hob on a reverse circulation drilling machine for breaking rock of higher hardness according to claim 2, characterized in that: the inserting block (502) is movably connected with the slot (503).

4. The hob on a reverse circulation drilling machine for breaking rock of higher hardness according to claim 3, characterized in that: the surface of the mounting plate (506) is movably connected with the inner wall of the through groove (504).

5. The hob on a reverse circulation drilling machine for breaking rock of higher hardness according to claim 4, characterized in that: the positioning block (508) is movably connected with the positioning groove (509).

6. The hob on a reverse circulation drilling machine for breaking rock of higher hardness according to claim 5, characterized in that: the positioning block (508) is movably connected with the through groove (504).

7. The rotary cutter on a reverse circulation drilling machine for breaking higher hardness rock according to claim 6, wherein: the surface of the handle (512) is movably connected with the inner wall of the through groove (504).