CN202381099U - Reinforcing type hobbing cutter with air pressure balance function - Google Patents
Reinforcing type hobbing cutter with air pressure balance function Download PDFInfo
- Publication number
- CN202381099U CN202381099U CN2011205582829U CN201120558282U CN202381099U CN 202381099 U CN202381099 U CN 202381099U CN 2011205582829 U CN2011205582829 U CN 2011205582829U CN 201120558282 U CN201120558282 U CN 201120558282U CN 202381099 U CN202381099 U CN 202381099U
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- China
- Prior art keywords
- duct
- air pressure
- hobboing cutter
- cutter
- pressure balance
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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 - Lifetime
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a reinforcing type hobbing cutter with an air pressure balance function. The reinforcing type hobbing cutter comprises a hobbing cutter body (1) and an annular cutter holder (2), wherein a cutter shaft (3) of the hobbing cutter body (1) is provided with a duct (4) penetrating through a central shaft; two ends of the duct (4) are respectively provided with a balance plug (5) with a center through hole; a closed soft hollow pressure pipe (6) is connected between the two balance plugs (5); a hollow pipe (7) is arranged at the center of the soft hollow pressure pipe (6), and two ends of the hollow pipe (7) are respectively communicated with the center through holes of the two balance plugs (5); the side wall of the hollow pipe (7) is provided with a plurality of longitudinally arranged through holes (8); an overflow passage (9) which axially penetrates through the duct (4) is arranged in the center of the cutter shaft (3); the outer end of the overflow passage (9) is communicated with a bearing accommodating space (10); and the bearing accommodating space (10) is filled with hydraulic oil.
Description
Technical field
The utility model relates to the reinforced hobboing cutter of band air pressure balance function, relates in particular to a kind of reinforced hobboing cutter that is used for the band air pressure balance function of tunnel excavator.
Background technology
Hobboing cutter is as a kind of cutterhead configuration cutter of conventional tunnel excavator, a kind of technology that at home and abroad has been widely used on the market, but the place that it still comes with some shortcomings.
At first,, make cutter farthest increase the service life, reduce the tool changing frequency, reduce the risk of frequent tool changing in the construction owing to will satisfy the requirement of different geology.Cutter cutter in tunneling process eccentric wear usually occurs, go into mud, causes the tool changing frequency to increase, and postpones project speed.In order to guarantee the digging efficiency of cutter head of shield machine, or even tunneling process is compelled ends, so adjust research and development to this problem according to different geological conditions.
In addition, in intense market competition, because limit in these not enough places; Can't satisfy the demand that segments market, therefore have only constantly and weed out the old and bring forth the new, strengthen technological innovation; Could hold new opportunity, further improve extra large Rake product in China, so the occupation rate of Asia-Pacific market.
Summary of the invention
In order to solve the problems of the prior art, the utility model provides a kind of reinforced hobboing cutter with the air pressure balance function.
The utility model provides a kind of reinforced hobboing cutter with the air pressure balance function; Comprise hobboing cutter body and annular tool rest; The cutter shaft of said hobboing cutter body be provided with one run through central axis the duct; Two ends, said duct are respectively equipped with the balanced plug of a tool central through-hole, and except being connected with an airtight soft hollow force pipe, the center of said soft hollow force pipe also is provided with two ends and connects the hollow tube that is connected with the central through-hole of said two balanced plug respectively between said two balanced plug; The sidewall of said hollow tube then is provided with the through hole that number is vertically arranged; The central position of said cutter shaft then is provided with the overflow ducts that axially runs through said duct in addition, and the outer end of said overflow ducts then is communicated with the bearing accommodation space, and said bearing accommodation space then is provided with hydraulic oil.
Described balanced plug is the two ends that are fixed on said duct with its set external screw thread in outside.
The through hole of described hollow tube is to be vertical equidistance to arrange.
Be formed with a pressure buffer space between described soft hollow force pipe and said hollow tube.
The beneficial effect of the utility model is: through such scheme, hobboing cutter can reach pressure balance inside and outside the cutter hub automatically when driving, so when running into the hydraulic pressure height with the cobble stratum, can better guarantee the not yielding of cutter and wearing and tearing.Even go into mud evening in the past and produce eccentric wear and maintenance and be worth problem such as low and also can be well improved.
Description of drawings
Fig. 1 is the perspective view of a kind of reinforced hobboing cutter with the air pressure balance function of the utility model.
Fig. 2 is the sectional view of the reinforced hobboing cutter of the said band air pressure balance of the utility model function.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is further specified.
Drawing reference numeral among Fig. 1 to Fig. 2 is: hobboing cutter body 1; Annular tool rest 2; Cutter shaft 3; Duct 4; Balanced plug 5; Soft hollow force pipe 6; Hollow tube 7; Through hole 8; Overflow ducts 9; Bearing accommodation space 10.
See also Fig. 1 and shown in Figure 2; The utility model discloses the reinforced hobboing cutter of band air pressure balance function; Comprise hobboing cutter body (1) and annular tool rest (2); The cutter shaft (3) of said hobboing cutter body (1) be provided with one run through central axis duct (4); Two ends, said duct (4) are respectively equipped with the balanced plug (5) of a tool central through-hole, and except being connected with an airtight soft hollow force pipe (6), the center of said soft hollow force pipe (6) also is provided with two ends and connects the hollow tube (7) that is connected with the central through-hole of said two balanced plug (5) respectively between said two balanced plug (5); The sidewall of said hollow tube (7) then is provided with the through hole (8) that number is vertically arranged; The central position of said cutter shaft (3) then is provided with the overflow ducts (9) that axially runs through said duct (4) in addition, and the outer end of said overflow ducts (9) then is communicated with bearing accommodation space (10), and said bearing accommodation space (10) then is provided with hydraulic oil.
Wherein, described balanced plug (5) is the two ends that are fixed on said duct (4) with its set external screw thread in outside.
Then form a pressure buffer space between said soft hollow force pipe (6) and said hollow tube (7).
And the through hole (8) of said hollow tube (7) is to be vertical equidistance to arrange.
So when hobboing cutter body (1) bears big pressure; This pressure hydraulic oil in the said bearing accommodation space (10) of will extruding; Make via described overflow ducts (9) and flow in the set duct (4) of cutter shaft (3); And then the described soft hollow force pipe (6) of extruding; Thereby the air in the said soft hollow force pipe (6) is discharged the outside of said hobboing cutter body (1) via the central through hole of through hole (8), hollow tube (7) and balanced plug (5), to reach the effect of equilibrium pressure.
Otherwise; When the air pressure outside the said hobboing cutter body (1) is big; The air of this big pressure is promptly got into by the duct (4) of said cutter shaft (3); Thereby get in the described pressure buffer space via the central through hole of said balanced plug (5) and the through hole (8) of said hollow tube (7); Further borrow the sidewall of the said soft hollow force pipe of extrusion (6), the hydraulic oil in said soft hollow force pipe (6) outside is extruded described overflow ducts (9) make in the said bearing accommodation space of entering (10), to reach the effect of equilibrium pressure.
A kind of reinforced hobboing cutter that the utility model provides with the air pressure balance function; Mainly be to comply with market demands; Require organizational technology's strength to study according to each item for cutter under the different geological conditionss, use the back various case to carry out detailed demonstration to different soil especially.Propose to solving hydraulic pressure height, sand bed, cobble stratum, hobboing cutter is yielding, wear and tear and go into mud, and cutter is not reprocessed problems such as value, makes great technological improvement.And hobboing cutter inside and outside when driving cutter hub can the automatic pressure balance.The produced hobboing cutter cutter in process above-mentioned various innovations back, the problem that makes driving back cutter bad control occur has had certain improvement.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (4)
1. reinforced hobboing cutter with the air pressure balance function; Comprise hobboing cutter body (1) and annular tool rest (2); It is characterized in that: the cutter shaft (3) of said hobboing cutter body (1) be provided with one run through central axis duct (4); Two ends, said duct (4) are respectively equipped with the balanced plug (5) of a tool central through-hole; Between said two balanced plug (5) except being connected with an airtight soft hollow force pipe (6); The center of said soft hollow force pipe (6) also is provided with the hollow tube (7) that two ends are connected with the central through-hole perforation of said two balanced plug (5) respectively, and the sidewall of said hollow tube (7) then is provided with the through hole (8) that number is vertically arranged, and the central position of said cutter shaft (3) then is provided with the overflow ducts (9) that axially runs through said duct (4) in addition; The outer end of said overflow ducts (9) then is communicated with bearing accommodation space (10), and said bearing accommodation space (10) then is provided with hydraulic oil.
2. the reinforced hobboing cutter of band air pressure balance function according to claim 1 is characterized in that: described balanced plug (5) is the two ends that are fixed on said duct (4) with its set external screw thread in outside.
3. the reinforced hobboing cutter of band air pressure balance function according to claim 1 is characterized in that: the through hole (8) of said hollow tube (7) is to be vertical equidistance to arrange.
4. the reinforced hobboing cutter of band air pressure balance function according to claim 3 is characterized in that: be formed with a pressure buffer space between said soft hollow force pipe (6) and said hollow tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205582829U CN202381099U (en) | 2011-12-28 | 2011-12-28 | Reinforcing type hobbing cutter with air pressure balance function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205582829U CN202381099U (en) | 2011-12-28 | 2011-12-28 | Reinforcing type hobbing cutter with air pressure balance function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381099U true CN202381099U (en) | 2012-08-15 |
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ID=46629612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205582829U Expired - Lifetime CN202381099U (en) | 2011-12-28 | 2011-12-28 | Reinforcing type hobbing cutter with air pressure balance function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381099U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649638A (en) * | 2015-12-31 | 2016-06-08 | 武汉江钻恒立工程钻具股份有限公司 | Disc hobbing cutter provided with oil storage bag type pressure balancing device |
| CN111550254A (en) * | 2020-05-23 | 2020-08-18 | 中铁工程装备集团隧道设备制造有限公司 | Novel hobbing cutter structure suitable for high-temperature stratum |
| CN111594195A (en) * | 2020-05-23 | 2020-08-28 | 中铁工程装备集团隧道设备制造有限公司 | Pressure self-adaptation shield constructs hobbing cutter |
-
2011
- 2011-12-28 CN CN2011205582829U patent/CN202381099U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649638A (en) * | 2015-12-31 | 2016-06-08 | 武汉江钻恒立工程钻具股份有限公司 | Disc hobbing cutter provided with oil storage bag type pressure balancing device |
| CN111550254A (en) * | 2020-05-23 | 2020-08-18 | 中铁工程装备集团隧道设备制造有限公司 | Novel hobbing cutter structure suitable for high-temperature stratum |
| CN111594195A (en) * | 2020-05-23 | 2020-08-28 | 中铁工程装备集团隧道设备制造有限公司 | Pressure self-adaptation shield constructs hobbing cutter |
| CN111550254B (en) * | 2020-05-23 | 2021-10-01 | 中铁工程装备集团隧道设备制造有限公司 | Novel hobbing cutter structure suitable for high-temperature stratum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
|
| CX01 | Expiry of patent term |