CN201554464U - Novel wearable hob body - Google Patents
Novel wearable hob body Download PDFInfo
- Publication number
- CN201554464U CN201554464U CN2009202430136U CN200920243013U CN201554464U CN 201554464 U CN201554464 U CN 201554464U CN 2009202430136 U CN2009202430136 U CN 2009202430136U CN 200920243013 U CN200920243013 U CN 200920243013U CN 201554464 U CN201554464 U CN 201554464U
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- Prior art keywords
- cutter
- cutter hub
- hob
- construction
- wearable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a tool used in tunnel excavation construction, in particular to a novel wearable hob body. The novel wearable hob body comprises a body (1) and a wearable layer (2), characterized in that the wearable layer (2) is arranged on the body (1) and is wave-shaped. Because of the wearable layer, the service life of the hob body is extended, the construction danger that the tunneling machine is stopped due to the hob trouble of the tunneling shield machine is reduced, and the cost for the hob in the construction of the tunneling shield machine is also reduced.
Description
Technical field
The utility model relates to the cutter that uses in the set of tunneling construction, is specially novel wear resistant hobboing cutter cutter hub.
Background technology
Directly have influence on construction speed, risk and the engineering construction cost of engineering the application life of hobboing cutter, the failure mode of hobboing cutter has in shield-tunneling construction: 1, cutter ring wearing and tearing; 2, cutter ring fracture; 3, cutter ring string mill; 4, cutter hub abrasion deformation; 5, damage of bearings; 6, the cutter leakage of oil, wherein 1 is the normal failure mode of cutter, 2,3,5,6 these several failure modes then mainly are the materials with cutter ring, some accessory of the packaging technology of cutter and cutter is selected for use relevant, these can effectively be avoided, but for cutter hub, the cutter hub material that each cutter producer selects for use basically is a good comprehensive properties 40CrNiMoA trade mark steel, machining post processing quenching HRC38-45, has enough abrasion resistancies and toughness though guaranteed cutter hub to a certain extent, satisfied the application life of hobboing cutter cutter hub in most of stratum, but such as intensive sand-pebble layer, the cutter hub of this performance will be had a greatly reduced quality on application life to some special formations.
As everyone knows, the hobboing cutter cutter hub is can be reusable, how can improve the reusable number of times of cutter hub, increase the application life of cutter hub? originally unit in charge of construction is merely able to requirement producer the material of cutter hub is improved, but effect is unsatisfactory, trace it to its cause mainly is to change the cutter hub material must increase the cutter hub input cost, in addition the material hardness of cutter hub too high aspect fine finishining and heat treatment difficulty bigger, wouldn't talk make back finished product cutter performance how, it is single that probably applying unit is also beyond affordability with regard to price, in cutter uses, by the long follow-up investigation of each producer's cutter is found: the cutter hub two ends are out of shape after wearing and tearing especially easily, the thickness of edges at two ends has only 10.5mm, cutter hub is with regard to easy deformation after wearing and tearing surpass 3mm, cause the cutter leakage of oil, the string mill, stuck etc., thereby influenced the application life of cutter greatly, become the important topic of deeply inquiring in each subway project construction the application life of cutter so how effectively to improve, but do not seen any relevant report now.
Summary of the invention
The utility model provides a kind of and can effectively protect cutter hub just at above technical problem, reduces the novel wear resistant hobboing cutter cutter hub of the degree of wear of cutter hub.
Concrete technical scheme of the present utility model is as follows:
Novel wear resistant hobboing cutter cutter hub comprises cutter hub 1, wearing layer 2, and wearing layer 2 is set on cutter hub 1.
Wearing layer 2 is a waveform; the height of build-up wear-resistant layer 2 is 5mm; width is 4mm; article two, keep to the side the wearing layer 2 of edge apart from cutter hub 1 end 4mm; two inboard wearing layers 2 are 4mm apart from back-up ring and cutter ring limit; but the waveform line segment is 30mm along the vertical distance between 2 of the hobboing cutter rotation directions; control to welding temperature in the welding process is very important; prevent that cutter hub 1 inner seal groove is because of the too high temperature distortion of cutter hub 1 local temperature; this waveform built-up welding mode is complicated; but result of use is better, and the waveform wearing layer of built-up welding can well have been protected cutter hub 1.
Technique effect of the present utility model shows: increased the application life of cutter hub greatly, reduced the construction risk of shutting down because of the shield cutter problem, also reduced the cost input of shield-tunneling construction to cutter simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Wherein, 1---cutter hub, 2---wearing layer
The specific embodiment
The utility model is described in further detail below in conjunction with the specific embodiment and Figure of description
Embodiment:
Novel wear resistant hobboing cutter cutter hub comprises cutter hub 1, wearing layer 2, and wearing layer 2 is set on cutter hub 1.
Wearing layer 2 is a waveform; the height of build-up wear-resistant layer 2 is 5mm; width is 4mm; article two, keep to the side the wearing layer 2 of edge apart from cutter hub 1 end 4mm; two inboard wearing layers 2 are 4mm apart from back-up ring and cutter ring limit; but the waveform line segment is 30mm along the vertical distance between 2 of the hobboing cutter rotation directions; control to welding temperature in the welding process is very important; prevent that cutter hub 1 inner seal groove is because of the too high temperature distortion of cutter hub 1 local temperature; waveform built-up welding mode result of use is better; the waveform wearing layer of built-up welding can well have been protected cutter hub 1; increased the application life of cutter hub greatly; reduced the construction risk of shutting down, also reduced the cost input of shield-tunneling construction simultaneously cutter because of the shield cutter problem.
Claims (2)
1. novel wear resistant hobboing cutter cutter hub comprises cutter hub (1), wearing layer (2), it is characterized in that: wearing layer (2) is set on cutter hub (1).
2. novel wear resistant hobboing cutter cutter hub according to claim 1 is characterized in that: described wearing layer (2) is a waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202430136U CN201554464U (en) | 2009-11-05 | 2009-11-05 | Novel wearable hob body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202430136U CN201554464U (en) | 2009-11-05 | 2009-11-05 | Novel wearable hob body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554464U true CN201554464U (en) | 2010-08-18 |
Family
ID=42614146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202430136U Expired - Fee Related CN201554464U (en) | 2009-11-05 | 2009-11-05 | Novel wearable hob body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811709A (en) * | 2020-07-16 | 2020-10-23 | 内蒙古第一机械集团股份有限公司 | Four-column torque sensor |
| CN112696204A (en) * | 2021-02-03 | 2021-04-23 | 洛阳九久科技股份有限公司 | Rhombic cap-shaped tooth cutter ring and manufacturing process thereof |
-
2009
- 2009-11-05 CN CN2009202430136U patent/CN201554464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811709A (en) * | 2020-07-16 | 2020-10-23 | 内蒙古第一机械集团股份有限公司 | Four-column torque sensor |
| CN112696204A (en) * | 2021-02-03 | 2021-04-23 | 洛阳九久科技股份有限公司 | Rhombic cap-shaped tooth cutter ring and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |