CN209261571U - It is suitable for the shield machine hob ring of hard formation - Google Patents
It is suitable for the shield machine hob ring of hard formation Download PDFInfo
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- CN209261571U CN209261571U CN201821892959.0U CN201821892959U CN209261571U CN 209261571 U CN209261571 U CN 209261571U CN 201821892959 U CN201821892959 U CN 201821892959U CN 209261571 U CN209261571 U CN 209261571U
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- Prior art keywords
- shield machine
- hard
- mounting hole
- hard alloy
- hard formation
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Abstract
The utility model discloses a kind of shield machine hob rings for being suitable for hard formation, to solve the technical problem that existing Hob ring rolls, breaking hard rock layer effect is bad.Including circle body, it further include hard alloy columnar, two layers is equipped on the circle body for installing the mounting hole of the hard alloy columnar, the mounting hole has multiple, and every layer of mounting hole is evenly arranged in a ring on the side wall of the circle body, the hard alloy columnar includes cylinder and the cutting edge body being located at the top of cylinder.The utility model passes through the setting of the double-deck hard alloy columnar, and it is wide to roll size, roll, breaking hard rock layer effect it is good, even wearing, to improve the construction efficiency and service life in hard formation.
Description
Technical field
The utility model relates to shield machine cutter technical fields, and in particular to a kind of shield machine roller cutter for being suitable for hard formation
Circle.
Background technique
With the fast development of China's capital construction, shield machine is mechanical as a kind of special engineering of tunnel piercing, uses extensively
In Tunnel Engineering such as subway, railway, highway, municipal administration, water power.The basic functional principle of shield machine is exactly the steel group an of cylindrical body
Part excavates soil when pushing ahead along canal axes by the way that the cutterhead of shield machine front end is arranged in.The cylinder component
Shell, that is, shield, it plays a part of temporary support to the also unlined Tunnel Section excavated, and bears the pressure of surrounding soil layer
Power, sometimes outside also subject to ground water pressure and by underground water gear.The operations such as excavation, casting, lining cutting are under the shielding of shield
It carries out.
Currently, the rotating cutter-head of existing shield machine is separately installed with hobboing cutter on corresponding tool apron, tearing cutter, center cutter, scrapes
Knife etc., these cutter integrations of operation, to the rolloff of the geological stratifications such as rock, gravel, soil, broken, trench digging tearing and scraping, wherein rolling
The effect of knife is mainly to rock rolloff, is crushed, and when hobboing cutter is loaded, and blade cuts country rock, rock surface generates part first
Microfissure is deformed and occurs, this process is that the initial stage of rock is broken, and when load continues growing, hobboing cutter cuts rock depth also phase
The intensification answered, the rock at hobboing cutter sword end, which crushes, to be crushed, and is rolled again, and microfissure comparatively fast develops in blade two sides,
Some crackles start to extend to rock surface, eventually form the main crackle in several roads and rapidly develop, and form the biggish fragment of volume,
Then avalanche.
The Hob ring that hard alloy cylinder is inlayed on present hobboing cutter is constructed for common rocks geological stratification and is designed, when construction
Rolloff, the effect of breaking hard rock stone are bad, and easily mill makes hobboing cutter stop operating and then fail partially, need to improve its structure.
Utility model content
The goal of the invention of the utility model is to provide a kind of shield machine hob ring with long service life for being suitable for hard formation,
To solve the technical problem that existing Hob ring rolls, breaking hard rock layer effect is bad.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of shield machine hob ring for being suitable for hard formation, including circle body are designed, further includes hard alloy columnar, in the circle
Body is equipped with two layers for installing the mounting hole of the hard alloy columnar, and the mounting hole has multiple, and every layer of mounting hole
It is evenly arranged in a ring on the side wall of the circle body, the hard alloy columnar includes cylinder and the cutting edge that is located at the top of cylinder
Body.
Further, in the above-mentioned shield machine hob ring for being suitable for hard formation, the cutting edge body is integrally set in side
There is the cone-like structure of corner angle, fillet is equipped at the top of the cutting edge body.
Further, in the above-mentioned shield machine hob ring for being suitable for hard formation, the cutting edge body includes being located at the cutting edge of a knife or a sword
Lower section is in six rib portions of hexagonal prism shape and is located at six rib portions lower section bottom surface in dodecagon, top surface in positive six side at the top of sword body
12 rib portions of shape, it is in the 20 of dodecagon that bottom surface is equipped with below 12 rib portion in positive 20 quadrangle, top surface
Tetragonous portion, the face that the top surface endpoint in the 12 rib portions three endpoint line adjacent with its bottom surface is constituted is the plane of disruption, and 20 is tetragonous
The face that the top surface endpoint in the portion three endpoint line adjacent with its bottom surface is constituted is the plane of disruption.
Further, in the above-mentioned shield machine hob ring for being suitable for hard formation, two layers of mounting hole is staggered.
Further, the distance in the above-mentioned shield machine hob ring for being suitable for hard formation, between mounting hole described in same layer
For the distance for installing a hard alloy columnar.
Further, in the above-mentioned shield machine hob ring for being suitable for hard formation, in the outer rim both ends of the surface of the circle body
On be equipped with chamfering.
Further, in the above-mentioned shield machine hob ring for being suitable for hard formation, wearing layer is equipped in the chamfering.
Further, it in the above-mentioned shield machine hob ring for being suitable for hard formation, is fallen in the hard alloy column bottom
There is fillet.
Compared with prior art, the advantageous effects of the utility model are:
1. the utility model passes through the setting of the double-deck hard alloy columnar, it is wide to roll size, rolls, breaking hard rock layer effect
It is good, even wearing, to improve the construction efficiency and service life in hard formation；
2. the setting of the chamfering on the utility model circle body is so that hard alloy columnar can preferably connect with fragmented rock is wanted
Touching, so that crushing effect is more preferable；
3. the utility model cutting edge body is integrally tapered, each side constitutes the plane of disruption, so that crushing effect is more preferable；
4. two layers of mounting hole of the utility model is staggered, hard alloy intercolumniation is evenly distributed, even wearing, and structure is tighter
It gathers, crushing effect is more preferable；
5. the service life that the setting of practical new wearing layer improves circle body.
Detailed description of the invention
Fig. 1 is that the utility model is suitable for the overall structure diagram in the shield machine hob ring embodiment of hard formation；
Fig. 2 is that the utility model is suitable for the schematic diagram of the section structure in the shield machine hob ring embodiment of hard formation；
Fig. 3 is that the structure for the hard alloy columnar that the utility model is suitable in the shield machine hob ring embodiment of hard formation is shown
It is intended to.
In figure, 1. circle bodies, 2. mounting holes, 3. hard alloy columnars, 31. cylinders, 32. cutting edge bodies, 321, six rib portions, 322. ten
Two rib portions, 323. 20 tetragonous portions, 4, wearing layer.
Specific embodiment
Illustrate specific embodiment of the present utility model with reference to the accompanying drawings and examples, but following embodiment only uses
It is described in detail the utility model, does not limit the scope of the utility model in any way.
Components, structure involved in following embodiment etc. are then unless otherwise instructed conventional products structure.
Embodiment 1: a kind of shield machine hob ring being suitable for hard formation further includes referring to Fig. 1 to Fig. 3, including circle body 1
Hard alloy columnar 3 is rounded down, convenient for the installation of hard alloy columnar 3 in 3 bottom of hard alloy columnar.It is equipped with two layers on circle body 1
For installing the mounting hole 2 of hard alloy columnar, hard alloy columnar 3 is embedded in mounting hole 2, both hard alloy columnar 3 and mounting hole 2
Interference fit, mounting hole 2 have multiple, and specific number is arranged 40 depending on the diameter of circle body 1 altogether in the present embodiment
Mounting hole, every layer of mounting hole 2 are evenly arranged in a ring on the side wall of circle body 1, and hard alloy columnar 3 is including cylinder 31 and is located at column
31 cutting edge body 32 at the top of body.
The whole cone-like structure that corner angle are equipped in side of cutting edge body 32, fillet is equipped at the top of cutting edge body 32, is avoided
32 top surface of cutting edge body is made into the phenomenon that tip shape is easy stress fragmentation generation.
Cutting edge body 32 includes being located at the 32 top lower section of cutting edge body in six rib portions 321 of hexagonal prism shape and being located at six rib portions
321 lower sections bottom surface, in 12 rib portions 322 of regular hexagon, are equipped with bottom surface in dodecagon, top surface below 12 rib portions 322
Top surface endpoint and its bottom surface in positive 20 quadrangle, top surface in 20 tetragonous 323,12 rib portions 322, portion of dodecagon
The face that adjacent three endpoint lines are constituted is the plane of disruption, three adjacent with its bottom surface of the top surface endpoint in 20 tetragonous portions 323
The face that endpoint line is constituted is the plane of disruption, and the bottom surface radius in 12 rib portions 322 is 1.2 times of top surface radius, 20 tetragonous portions 323
Bottom surface radius is 1.2 times of top surface radius, in this way, so that entire cutting edge body 32 is formed cone cell, and each side constitutes the plane of disruption,
Further increase crushing effect.
Two layers of mounting hole 2 is staggered, and the distance between same layer mounting hole 2 is to install the distance of a hard alloy columnar 3,
It is evenly distributed between hard alloy columnar 3, even wearing, more compact structure, crushing effect is more preferable.
Be equipped with chamfering in the outer rim both ends of the surface of circle body 1 so that hard alloy columnar can with want fragmented rock better
Contact is equipped with wearing layer 4, the material of wearing layer 4 is wolfram steel antifriction alloy, resistance to so that crushing effect is more preferable in chamfering
Mill layer 4 is welded in chamfering.
The utility model passes through the setting of the double-deck hard alloy columnar, and it is wide to roll size, roll, breaking hard rock layer effect it is good,
Even wearing, to improve the construction efficiency and service life in hard formation.
The utility model is described in detail above in conjunction with drawings and examples, still, the skill of technical field
Art personnel, can also be to each specific in above-described embodiment it is understood that without departing from the purpose of the present invention
Parameter changes, and forms multiple specific embodiments, is the common variation range of the utility model, no longer detailed one by one herein
It states.
Claims (8)
1. a kind of shield machine hob ring for being suitable for hard formation, including circle body, which is characterized in that it further include hard alloy columnar,
The circle body is equipped with two layers for installing the mounting hole of the hard alloy columnar, the mounting hole have it is multiple, and described in every layer
Mounting hole is evenly arranged in a ring on the side wall of the circle body, and the hard alloy columnar includes cylinder and is located at the top of cylinder
Cutting edge body.
2. the shield machine hob ring according to claim 1 for being suitable for hard formation, which is characterized in that the cutting edge body is whole
It is equipped with the cone-like structure of corner angle in side, fillet is equipped at the top of the cutting edge body.
3. the shield machine hob ring according to claim 2 for being suitable for hard formation, which is characterized in that the cutting edge body includes
Lower section at the top of the cutting edge body is located to be in six rib portions of hexagonal prism shape and be located at six rib portions lower section bottom surface in dodecagon, top surface
In 12 rib portions of regular hexagon, it is in positive twelve edge that bottom surface is equipped with below 12 rib portion in positive 20 quadrangle, top surface
The tetragonous portion in the 20 of shape.
4. the shield machine hob ring according to claim 1 for being suitable for hard formation, which is characterized in that two layers of mounting hole
It is staggered.
5. the shield machine hob ring according to claim 4 for being suitable for hard formation, which is characterized in that mounting hole described in same layer
Between distance be install a hard alloy columnar distance.
6. the shield machine hob ring according to claim 1 for being suitable for hard formation, which is characterized in that in the outer of the circle body
Chamfering is equipped in edge both ends of the surface.
7. the shield machine hob ring according to claim 6 for being suitable for hard formation, which is characterized in that set in the chamfering
There is wearing layer.
8. the shield machine hob ring according to claim 1 for being suitable for hard formation, which is characterized in that in the hard alloy
Column bottom is rounded down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892959.0U CN209261571U (en) | 2018-11-16 | 2018-11-16 | It is suitable for the shield machine hob ring of hard formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892959.0U CN209261571U (en) | 2018-11-16 | 2018-11-16 | It is suitable for the shield machine hob ring of hard formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209261571U true CN209261571U (en) | 2019-08-16 |
Family
ID=67555295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821892959.0U Active CN209261571U (en) | 2018-11-16 | 2018-11-16 | It is suitable for the shield machine hob ring of hard formation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209261571U (en) |
-
2018
- 2018-11-16 CN CN201821892959.0U patent/CN209261571U/en active Active
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