CN210396636U - Cutter for engineering rock-socketed drilling - Google Patents
Cutter for engineering rock-socketed drilling Download PDFInfo
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- CN210396636U CN210396636U CN201921358558.1U CN201921358558U CN210396636U CN 210396636 U CN210396636 U CN 210396636U CN 201921358558 U CN201921358558 U CN 201921358558U CN 210396636 U CN210396636 U CN 210396636U
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Abstract
The utility model discloses a cutter for engineering rock-socketed drilling, including the arbor, rotate the cutter body of connection on the arbor, install a plurality of sword teeth on the cutter body, the mounting hole has all been seted up to the installation department that corresponds every sword tooth on the cutter body, the sword tooth includes the installation department of being connected with the mounting hole looks cooperatees, stretch out the mounting hole and be wedge-shaped tooth portion, the installation department is the toper, and the one end that is close to tooth portion of installation department is the thinner one end of installation department, the mounting hole is the through-hole, and its fitting surface with the department of meeting of installation department is the conical surface, still be connected with in the mounting hole and push up the piece tightly on the. According to the engineering rock-socketed drilling tool, the tool body and the tool teeth are mounted in a taper pin shaft mode, the tool teeth are limited on the tool body through conical surface matching, no matter how the tool is stressed, the tool teeth cannot fall off from the tool body under the condition that the structure of the tool body is not damaged, and the service life of the tool is greatly prolonged.
Description
Technical Field
The utility model relates to a cutter for engineering embedded rock drilling is applied to fields such as marine wind power embedded rock drilling machine drilling construction, tunnel shaft drilling construction, mineral products shaft drilling construction.
Background
The drilling equipment utilizes a spherical tooth type hob to dig and cut rock embedded in a rock stratum, and spherical teeth on the surface of the hob body are made of special high-strength total materials and have high wear resistance. The existing spherical tooth alloy block (wedge-shaped hard alloy block) is only provided with a wedge-shaped tooth part extending out of the cutter body, and the mounting part inserted into the cutter body is still cylindrical, such as a wedge-shaped hard alloy tooth conical hobbing cutter device for a vertical shaft drilling machine disclosed in CN201320545274, a cutter device for a vertical shaft drilling machine with high durability disclosed in CN201620437260, a vertical shaft drilling machine cutter with a function of monitoring the rotating speed of the cutter in real time disclosed in CN201620440177, and a novel wedge-shaped hobbing cutter disclosed in CN 92229968. When the button alloy piece is installed on the cutter body, the upper portion is inserted, namely the button alloy piece is inserted into the cutter body from the outside of the cutter body, and the installation portion and the cutter body are fixed through interference fit or the button alloy piece is connected through an adhesive. The hob body processing method in the prior art comprises the following steps: a. firstly, the cutter body is processed, the periphery of the cutter body presents a cylindrical hole, and the hole is a blind hole; b. putting the button alloy block into liquid nitrogen, wherein the button alloy block is frozen and contracted, and the diameter of the button alloy block is relatively small; c. and (3) putting the button alloy block into a cylindrical hole on the periphery of the cutter body, and when the cutter body and the button alloy block return to room temperature, the diameter of the button alloy block is increased, and the cutter body and the button alloy block are in an interference fit state. The assembly mode has structural defects, and the load of the spherical gear hob in the working state is very complex, so that the spherical gear alloy block is very easy to fall off under the stress condition, the cutting of the cutter can be interfered after the spherical gear alloy block falls off, and the cutter is damaged quickly due to the collision of the spherical gear alloy block and the cutter during cutting. During construction, the cutter is damaged mostly because the cutter collides with metal objects during tunneling.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide a cutter is used in engineering rock-socketed drilling.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides an engineering is cutter for rock-socketed drilling, including the arbor, rotate the cutter body of connection on the arbor, install a plurality of sword teeth on the cutter body, the mounting hole has all been seted up to the installation department that corresponds every sword tooth on the cutter body, the sword tooth includes the installation department of being connected with the mounting hole phase cooperation, stretch out the mounting hole and be wedge-shaped tooth portion, the installation department is the toper, and the one end that is close to tooth portion of installation department is the thinner one end of installation department, the mounting hole is the through-hole, and its fitting surface that meets the department with the installation department is the conical surface, still be connected with in the mounting hole and push up the.
Further, the mounting hole includes the interior section portion that is close to the arbor and keeps away from the outer section portion of arbor, and outer section portion is the toper, and the one end of keeping away from interior section portion of outer section portion is the less one end in its aperture, and the installation department is connected in outer section portion with the cooperation, and the tight piece in top is connected in interior section portion.
Further, one end of the tightening member has a boss which extends into the outer section portion and tightens against the thicker end of the mounting portion.
Further, the top member is cylindrical and the inner section is cylindrical.
Further, the tightening member is closed in the mounting hole by electric welding.
Further, the cutting edge of the cutter tooth is the top edge of the wedge-shaped tooth part, and the top edge is perpendicular to the axial direction of the cutter shaft.
Further, a plurality of annular convex parts arranged along the axial direction are arranged on the outer surface of the cutter body, an annular groove is formed between every two adjacent annular convex parts, the cutter teeth are connected to the annular convex parts, each annular convex part is connected with a plurality of cutter teeth, and the annular convex parts where the cutter teeth are located are uniformly distributed.
Further, the plurality of cutter teeth are divided into a plurality of rows in the circumferential direction along the cutter body, and the cutter teeth in each row are arranged in the axial direction of the cutter body.
Further, the cutter body is connected with the cutter shaft through a rolling bearing.
Further, sealing parts are arranged between the two ends of the cutter body and the cutter shaft.
By adopting the technical scheme, the tool for rock-socketed drilling in the engineering adopts the taper pin shaft type installation for installation between the tool body and the tool teeth, the tool teeth are limited on the tool body through the conical surface matching, no matter how the tool is stressed, the tool teeth cannot fall off from the tool body under the condition that the tool body structure is not damaged, and the service life of the tool is greatly prolonged.
Drawings
Fig. 1 is a schematic sectional structure view of a cutter for rock-socketed engineering drilling in an axial direction according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a cutter body of the cutter shown in FIG. 1;
FIG. 3 is a structural view of a tooth and a puller member of the tool shown in FIG. 1;
fig. 4 is a perspective view of the cutter shown in fig. 1.
The reference numbers in the figures are:
1. a cutter shaft; 2. a cutter body; 21. an annular boss; 22. a trench; 3. cutter teeth; 31. an installation part; 32. a tooth portion; 33. a blade; 4. mounting holes; 41. an outer section; 42. an inner section; 5. a top tightening member; 51. a boss; 6. a rolling bearing; 7. a shaft sleeve; 8. a screw gland; 91. a first seal member; 92. a second seal.
Detailed Description
The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, enables those skilled in the art to more readily understand the advantages and features of the invention.
Referring to fig. 1 to 4, the cutting tool for engineering rock-socketed drilling in the present embodiment includes a cutter shaft 1, a cutter body 2 pivotally connected to the cutter shaft 1, and a plurality of cutter teeth 3 mounted on the cutter body 2, and a mounting hole 4 is formed in a mounting position of the cutter body 2 corresponding to each cutter tooth 3.
The cutter tooth 3 comprises a mounting part 31 which is matched and connected with the mounting hole 4 and a tooth part 32 which extends out of the mounting hole 4 and is wedge-shaped. The mounting portion 31 is tapered, and one end of the mounting portion 31 near the tooth portion 32 is a thinner end of the mounting portion 31. In a more preferred embodiment, the cutting edge 33 of the cutter tooth 3 is the top edge of the wedge-shaped tooth portion 32, which is arranged perpendicular to the axial direction of the arbor 1.
The mounting hole 4 is a through hole, and the mating surface at the connection with the mounting portion 31 is a tapered surface. Specifically, the mounting hole 4 includes an inner section 42 close to the arbor 1 and an outer section 41 far from the arbor 1, the outer section 41 is tapered, and an end of the outer section 41 far from the inner section 42 is an end with a smaller aperture, and the mounting portion 31 is fittingly connected in the outer section 41, the tapered surface is a hole wall of the outer section 41. The outer section 41 and the inner section 42 in this embodiment are directly connected, the inner section 42 is cylindrical, and the aperture of the inner section 42 is greater than or equal to that of the end of the outer section 41 connected with the inner section 42, which is greater in this embodiment.
The mounting hole 4 is also connected with a tightening member 5, and the tightening member 54 is used for tightening the mounting portion 31 on the tapered surface. Specifically, the tightening member 5 is connected in the inner section 42, and the tightening member 5 in the embodiment is cylindrical. In a more preferred embodiment, one end of the tightening member 5 has a boss 51, and the boss 51 extends into the outer section portion 41 and tightens against the thicker end of the mounting portion 31, and more preferably, the diameter of the boss 51 is smaller than that of the thicker end of the mounting portion 41. The diameter-variable structure design of the top member 5 can ensure that the top member 5 is tightly pressed on the mounting part 31 of the cutter tooth 3.
The top fastening member 5 is closed in the mounting hole 4 by electric welding.
In a more preferable scheme, the outer surface of the cutter body 2 is provided with a plurality of annular convex portions 21 arranged along the axial direction, an annular groove 22 is formed between every two adjacent annular convex portions 21, the cutter teeth 3 are connected to the annular convex portions 21, each annular convex portion 21 is connected with a plurality of cutter teeth 3, and the plurality of cutter teeth 3 are uniformly distributed along the annular convex portion 21 where the cutter teeth are located. The structural design improves the rock breaking efficiency of the cutter.
In the present embodiment, the plurality of cutter teeth 3 are divided into a plurality of rows in the circumferential direction along the cutter body 2, and the cutter teeth 3 in each row are arranged in the axial direction of the cutter body 2. The structural design improves the rock breaking efficiency of the cutter.
The cutter body 2 is connected with the cutter shaft 1 through two rolling bearings 6 which are symmetrically arranged. Shaft sleeves 7 are arranged between two ends of the cutter body 2 and the cutter shaft 1, a first sealing element 91 is arranged between the shaft sleeves 7 and the cutter body 2, and a second sealing element 92 is arranged between the shaft sleeves 7 and the cutter shaft 1. A screw gland 8 is arranged between one end of the cutter body 2 and the cutter shaft 1, specifically, a shaft sleeve 7 at the end is arranged between the screw gland 8 and the cutter shaft 1, and a first sealing element 91 at the end is arranged between the shaft sleeve 7 and the screw gland 8.
In the cutter for engineering rock-socketed drilling in the embodiment, the cutter body and the cutter teeth are mounted in a taper pin shaft type manner, the cutter teeth are limited on the cutter body through conical surface matching, no matter how the cutter is stressed, the cutter teeth cannot fall off from the cutter body under the condition that the cutter body structure is not damaged, and the service life of the cutter is greatly prolonged.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides an engineering is cutter for rock-socketed drilling, includes arbor (1), pivotal connection be in cutter body (2) on arbor (1), install a plurality of sword teeth (3) on cutter body (2), cutter body (2) on correspond the installation department of every sword tooth (3) and all seted up mounting hole (4), sword tooth (3) include with mounting hole (4) match installation department (31) of connecting, stretch out mounting hole (4) and be wedge-shaped tooth portion (32), its characterized in that: installation department (31) be the toper, and be close to of installation department (31) the one end of tooth portion (32) is the thinner one end of installation department (31), mounting hole (4) are the through-hole, and its with the fitting surface that installation department (31) meets is the conical surface, mounting hole (4) in still be connected with installation department (31) top is tight top tight piece (5) on the conical surface.
2. The tool for engineering rock-socketed drilling according to claim 1, characterized in that: mounting hole (4) including being close to interior section portion (42) of arbor (1) and keeping away from outer section portion (41) of arbor (1), outer section portion (41) are the toper, just the one end of keeping away from interior section portion (42) of outer section portion (41) is the less one end in its aperture, installation department (31) connect with cooperating in outer section portion (41), tight piece (5) in top connect in interior section portion (42).
3. The tool for engineering rock-socketed drilling according to claim 2, characterized in that: one end of the top member (5) is provided with a boss (51), and the boss (51) extends into the outer section part (41) and is tightly pressed on the thicker end of the mounting part (31).
4. The tool for engineering rock-socketed drilling according to claim 2, characterized in that: the top member (5) is cylindrical, and the inner section (42) is cylindrical.
5. The tool for engineering rock-socketed drilling according to claim 1, characterized in that: the top fastening piece (5) is sealed in the mounting hole (4) through electric welding.
6. The tool for engineering rock-socketed drilling according to claim 1, characterized in that: the cutting edge (33) of the cutter tooth (3) is the top edge of the wedge-shaped tooth part (32), and the top edge is perpendicular to the axial direction of the cutter shaft (1).
7. The tool for engineering rock-socketed drilling according to claim 1, characterized in that: the outer surface of the cutter body (2) is provided with a plurality of annular protruding portions (21) which are arranged along the axial direction, an annular groove (22) is formed between every two adjacent annular protruding portions (21), the cutter teeth (3) are connected to the annular protruding portions (21), each annular protruding portion (21) is connected with a plurality of cutter teeth (3), and the plurality of cutter teeth (3) are uniformly distributed along the annular protruding portions (21) where the cutter teeth are located.
8. The tool for engineering rock-socketed drilling according to claim 1, characterized in that: the plurality of cutter teeth (3) are divided into a plurality of rows along the circumferential direction of the cutter body (2), and the cutter teeth (3) in each row are arranged along the axial direction of the cutter body (2).
9. The tool for engineering rock-socketed drilling according to claim 1, characterized in that: the cutter body (2) is connected with the cutter shaft (1) through a rolling bearing.
10. The tool for engineering rock-socketed drilling according to claim 1, characterized in that: sealing elements are arranged between the two ends of the cutter body (2) and the cutter shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358558.1U CN210396636U (en) | 2019-08-21 | 2019-08-21 | Cutter for engineering rock-socketed drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358558.1U CN210396636U (en) | 2019-08-21 | 2019-08-21 | Cutter for engineering rock-socketed drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210396636U true CN210396636U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921358558.1U Active CN210396636U (en) | 2019-08-21 | 2019-08-21 | Cutter for engineering rock-socketed drilling |
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| Country | Link |
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| CN (1) | CN210396636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374514A (en) * | 2019-08-21 | 2019-10-25 | 中交天和机械设备制造有限公司 | The boring cutter of the embedding rock of engineering |
-
2019
- 2019-08-21 CN CN201921358558.1U patent/CN210396636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374514A (en) * | 2019-08-21 | 2019-10-25 | 中交天和机械设备制造有限公司 | The boring cutter of the embedding rock of engineering |
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