CN105202191A - Four-claw type main bearing sealing device of full-section heading machine - Google Patents
Four-claw type main bearing sealing device of full-section heading machine Download PDFInfo
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- CN105202191A CN105202191A CN201510763038.9A CN201510763038A CN105202191A CN 105202191 A CN105202191 A CN 105202191A CN 201510763038 A CN201510763038 A CN 201510763038A CN 105202191 A CN105202191 A CN 105202191A
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Abstract
The invention provides a four-claw type main bearing sealing device of a full-section heading machine. The four-claw type main bearing sealing device comprises a four-claw sealing body and a sealing pressing plate, wherein sealing claws of the four-claw sealing body and a sealing bottom plate of the four-claw sealing body are connected to form a whole body; the four sealing claws of the four-claw sealing body are linearly and horizontally arrayed on the sealing bottom plate of the four-claw sealing body in parallel in a manner of having equal distances from the sealing bottom plate of the four-claw sealing body; the top ends of the four sealing claws of the four-claw sealing body are in linear contact with a fitting surface of a sealing sliding ring A and are fixed on a rotary ring B by the sealing pressing plate; the rotary ring B is fixed on a large gear ring C and the large gear ring C is engaged with a small gear; a sealing end cover E is used for covering the sealing pressing plate and the four-claw sealing body; and the other end of the rotary ring B is connected with a cutter disc F of the full-section heading machine. The four-claw type main bearing sealing device has good wear-resisting and anti-vibration effect, good sealing effect, relatively long service life, relatively simple structure, relatively low cost and relatively small abrasion amount; and the requirements on machining precision of mounting and sealing parts are low, and the four-claw type main bearing sealing device is applied to the technical field of the full-section heading machine.
Description
Technical field
The present invention relates to a kind of full face tunnel boring machine four-jaw type main bearing sealing device in full face tunnel boring machine technical field.
Background technique
At present, when full face tunnel boring machine normally carries out headwork, main bearing is near excavation face, and around dust is many, vibrations are large, and bad environments, industrial and mineral are complicated, and the primary seal in main bearing directly affects the life-span of main bearing and even the duration of whole engineering.Once seal failure problem appears in primary seal in work progress, just need shutdown to convince hole by patient analysis and dig hole wall, dismantle and fixation cutter head etc., can have a strong impact on the duration, if gone wrong in the position primary seal that geological condition is severe, consequence is difficult to the imagination especially.Good primary seal is the guarantee of main bearing safe handling.Primary seal plays the left and right of barrier in main bearing, the dust disintegrating slag of outside and muddy water both effectively can have been stoped to enter Bearing inner, prevented again the grease of Bearing inner from revealing simultaneously.The reliability and the maintainability that how to improve main shaft seals are new problems urgently to be resolved hurrily in full face tunnel boring machine construction always.The most structure of main shaft seals being applied to full face tunnel boring machine field is at present single, and installation replacing is complicated, easy to wear, heating value is large, the life-span is low, and these factors cause tremendous influence to the main bearing life-span of full face tunnel boring machine and even construction speed.Invent a kind of durable Novel main bearing seal that is reliable, that be convenient to installation and maintenance and seem very there is practical significance.Therefore, research and develop a kind of full face tunnel boring machine four-jaw type main bearing sealing device is new problem anxious to be resolved always.
Summary of the invention
The object of the present invention is to provide a kind of full face tunnel boring machine four-jaw type main bearing sealing device, the jaw of this invention four paws seal is parallel to each other equidistant arrangement on the seal base of four paws seal, the jaw linearly shape of four paws seal, at seal its own resilient and liquid
body pressurehave self-tightening under acting in conjunction, its relies on lip to be close to sealing male part surface, blocks leakage way and obtain sealing effect, and avoid beating on four paws seal infringement and inconvenience that bolt hole brings, assembly process is fast convenient, is easy to maintenance.
The object of the present invention is achieved like this: a kind of full face tunnel boring machine four-jaw type main bearing sealing device, comprise four paws seal, sealing clamp, the jaw of four paws seal and both seal bases of four paws seal connect into an entirety, four jaw of four paws seal are all lineal shapes, four jaw of four paws seal are arranged in equidistant parallel on the seal base of four paws seal, the top of four jaw of four paws seal is that line style contacts when contacting with sealing slip ring A faying surface, be fixed on rotating ring B with sealing clamp, rotating ring B is fixed on bull gear C, bull gear C engages with small gear D, with end cover E, sealing clamp and four paws seal are built, the other end of rotating ring B is connected with the cutterhead F of full face tunnel boring machine,
The jaw center line of described four paws seal and seal base are all in 57.5 ° of angles, the jaw linearly shape of four paws seal, four jaw centreline spacings of four paws seal are all 13.5mm, the jaw of four paws seal is near the thick 8mm in one end of seal base, the thick 4mm of the other end, the long 39mm of jaw of four paws seal, four-jaw type main bearing sealing device total thickness is 47mm, length by according to four-jaw type main bearing sealing device need determine;
The working principle of described a kind of full face tunnel boring machine four-jaw type main bearing sealing device is, this four-jaw type main bearing sealing device is arranged on the rotating ring B in the main bearing of full face tunnel boring machine, when development machine works, drive four-jaw type main bearing sealing device rotates by driver element together, sealing slip ring A faying surface is close on this four-jaw type main bearing sealing device top, sliding friction is produced between the two, under the acting in conjunction of seal its own resilient and fluid pressure, the jaw top of four paws seal and the sealing slip ring A of laminating are adjacent to, the top of four jaw of four paws seal is that line style contacts when contacting with sealing slip ring A, under the acting in conjunction of both sides fluid pressure, area of contact increases, for 1/4th of existing conventional sealing contact surface, the U+V shape confined space that between four jaw of four paws seal, formation three is special, these three confined air chien shih four paws seals 1 have self-tightening, rely on the support tight gluing, sealing slip ring A surface of air in four paws self good elasticity of seal 1 and confined space, effective obstruction leakage way and obtain sealing effect, its working pressure reaches as high as 1MPa, lubricant grease pressure reaches as high as 0.5MPa, to annotate in the main bearing of full face tunnel boring machine HBW seal grease, for ensureing the sealing effect of seal grease, containing a large amount of wires and metal granule in HBW, between four-jaw type main bearing sealing device and sealing slip ring A, the surface friction drag in relative movement will be reduced because area of contact is little, also the wearing and tearing because sliding friction produces four-jaw type main bearing sealing device and sealing slip ring A will be reduced, due to the material wear-resistant antidetonation that sealing adopts, good airproof performance, and friction area is little, the heat that main bearing produces between four-jaw type main bearing sealing device and sealing slip ring A in operation process also can reduce, work progress for long distance persistency is provided good safety guarantee by this, on the seal base of four paws seal, 15mm is stretched out respectively in the both sides of four pawls, be fixed on rotating ring B with sealing clamp, avoid beating on four paws seal infringement and inconvenience that bolt hole brings, assembly process is fast convenient, is easy to safeguard in work progress,
Use and the operating method of described a kind of full face tunnel boring machine four-jaw type main bearing sealing device are
,four paws seal is separately fixed on rotating ring B by utilizing sealing clamp by four-jaw type main bearing sealing device, then the rotating ring B being equipped with four-jaw type main bearing sealing device is pushed in main bearing, four road jaw of this four paws seal are adjacent to the faying surface of sealing slip ring A, with end cover E, sealing clamp and four paws seal are built, utilize stud to be connected with bull gear C by rotating ring B respectively and the connection of rotating ring B and cutterhead F.
Main points of the present invention are its structure and working principle.
A kind of full face tunnel boring machine four-jaw type main bearing sealing device compared with prior art, there is wear-resisting antidetonation, good sealing effect, the life-span is longer, structure is simpler, cost is lower, wear extent is less, to advantages such as the requirement on machining accuracy installing and seal position are low, will be widely used in full face tunnel boring machine technical field.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and implement the present invention is described in detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
With reference to accompanying drawing, a kind of full face tunnel boring machine four-jaw type main bearing sealing device, comprise four paws seal 1, sealing clamp 2, the jaw of four paws seal 1 and both seal bases of four paws seal 1 connect into an entirety, four jaw of four paws seal 1 are all lineal shapes, four jaw of four paws seal 1 are arranged in equidistant parallel on the seal base of four paws seal, the top of four jaw of four paws seal 1 is that line style contacts when contacting with sealing slip ring A faying surface, be fixed on rotating ring B with sealing clamp 2, rotating ring B is fixed on bull gear C, bull gear C engages with small gear D, with end cover E, sealing clamp 2 and four paws seal 1 are built, the other end of rotating ring B is connected with the cutterhead F of full face tunnel boring machine.
The jaw center line of described four paws seal 1 and seal base are all in 57.5 ° of angles, the jaw linearly shape of four paws seal 1, four jaw centreline spacings of four paws seal 1 are all 13.5mm, the jaw of four paws seal 1 is near the thick 8mm in one end of seal base, the thick 4mm of the other end, the long 39mm of jaw of four paws seal 1, four-jaw type main bearing sealing device total thickness is 47mm, length by according to four-jaw type main bearing sealing device need determine.
The working principle of described a kind of full face tunnel boring machine four-jaw type main bearing sealing device is, this four-jaw type main bearing sealing device is arranged on the rotating ring B in the main bearing of full face tunnel boring machine, when development machine works, drive four-jaw type main bearing sealing device rotates by driver element together, sealing slip ring A faying surface is close on this four-jaw type main bearing sealing device top, sliding friction is produced between the two, under the acting in conjunction of seal its own resilient and fluid pressure, the jaw top of four paws seal 1 and the sealing slip ring A of laminating are adjacent to, the top of four jaw of four paws seal 1 is that line style contacts when contacting with sealing slip ring A, under the acting in conjunction of both sides fluid pressure, area of contact increases, for 1/4th of existing conventional sealing contact surface, the U+V shape confined space that between four jaw of four paws seal 1, formation three is special, these three confined air chien shih four paws seals 1 have self-tightening, rely on the support tight gluing, sealing slip ring A surface of air in four paws self good elasticity of seal 1 and confined space, effective obstruction leakage way and obtain sealing effect, its working pressure reaches as high as 1MPa, lubricant grease pressure reaches as high as 0.5MPa, to annotate in the main bearing of full face tunnel boring machine HBW seal grease, for ensureing the sealing effect of seal grease, containing a large amount of wires and metal granule in HBW, between four-jaw type main bearing sealing device and sealing slip ring A, the surface friction drag in relative movement will be reduced because area of contact is little, also the wearing and tearing because sliding friction produces four-jaw type main bearing sealing device and sealing slip ring A will be reduced, due to the material wear-resistant antidetonation that sealing adopts, good airproof performance, and friction area is little, the heat that main bearing produces between four-jaw type main bearing sealing device and sealing slip ring A in operation process also can reduce, work progress for long distance persistency is provided good safety guarantee by this, on the seal base of four paws seal 1,15mm is stretched out respectively in the both sides of four pawls, be fixed on rotating ring B with sealing clamp 2, avoid beating on four paws seal 1 infringement and inconvenience that bolt hole brings, assembly process is fast convenient, is easy to safeguard in work progress.
Use and the operating method of described a kind of full face tunnel boring machine four-jaw type main bearing sealing device are
,four paws seal 1 is separately fixed on rotating ring B by utilizing sealing clamp 2 by four-jaw type main bearing sealing device, then the rotating ring B being equipped with four-jaw type main bearing sealing device is pushed in main bearing, four road jaw of this four paws seal 1 are adjacent to the faying surface of sealing slip ring A, with end cover E, sealing clamp 2 and four paws seal 1 are built, utilize stud to be connected with bull gear C by rotating ring B respectively and the connection of rotating ring B and cutterhead F.
The present invention is described in further detail below in conjunction with embodiment:
The inside and outside two cover primary seals of full advance main bearing all adopt four paws seal 1, the seal base of this four paws seal 1 and the jaw of four paws seal 1 are an entirety, the jaw of four paws seal 1 totally four, be parallel to each other equidistant arrangement on the seal base of four paws seal 1, the jaw linearly shape of four paws seal 1, the top of four jaw of this four paws seal 1 is that line style contacts when contacting with sealing slip ring A faying surface, under the acting in conjunction of both sides fluid pressure, area of contact increases a little, be about 1/4th of existing conventional sealing contact surface, three seal chambers formed between four jaw of four paws seal 1 are U+V shapes, these seal chambers have self-tightening, it relies on lip to be close to sealing male part surface, block leakage way and obtain sealing effect.Stretch out 15mm in the seal base both sides of four paws seal 1, be fixed on rotating ring B with sealing clamp 2, avoid beating on four paws seal 1 infringement and inconvenience that bolt hole brings, assembly process is fast convenient, is easy to safeguard.
That fit with four paws seal 1 top is the sealing slip ring A of main bearing, and steel plate is thicker is convenient to processing and assembling, also provides safety guarantee for long distance continues construction while reducing costs.The material of four-jaw type main shaft seals adopts polyurethane, this material has good airproof performance, long service life, cost is low, degradable is pollution-free, good processability, there are higher elasticity and tensile strength, tearing toughness, excellent wear resistance, oil resistance, fatigue resistance and draw and do not hinder noise free, anti-multiple soda acid and organic solvent corrosion, importantly polyurethane also has very strong anti-vibration resistance, for the full face tunnel boring machine of operating mode complexity during construction, this feature is even more important.Four paws seal 1 effectively avoids conventional master spindle to hold the shortcomings of sealing, greatly improves the efficiency of construction of full face tunnel boring machine.
Claims (4)
1. a full face tunnel boring machine four-jaw type main bearing sealing device, comprise four paws seal, sealing clamp, it is characterized in that: the jaw of four paws seal and both seal bases of four paws seal connect into an entirety, four jaw of four paws seal are all lineal shapes, four jaw of four paws seal are arranged in equidistant parallel on the seal base of four paws seal, the top of four jaw of four paws seal is that line style contacts when contacting with sealing slip ring A faying surface, be fixed on rotating ring B with sealing clamp, rotating ring B is fixed on bull gear C, bull gear C engages with small gear D, with end cover E, sealing clamp and four paws seal are built, the other end of rotating ring B is connected with the cutterhead F of full face tunnel boring machine.
2. a kind of full face tunnel boring machine four-jaw type main bearing sealing device according to claim 1, it is characterized in that: the jaw center line of described four paws seal and seal base are all in 57.5 ° of angles, the jaw linearly shape of four paws seal, four jaw centreline spacings of four paws seal are all 13.5mm, the jaw of four paws seal is near the thick 8mm in one end of seal base, the thick 4mm of the other end, the long 39mm of jaw of four paws seal, four-jaw type main bearing sealing device total thickness is 47mm, length by according to four-jaw type main bearing sealing device need determine.
3. a kind of full face tunnel boring machine four-jaw type main bearing sealing device according to claim 1, it is characterized in that: the working principle of described a kind of full face tunnel boring machine four-jaw type main bearing sealing device is, this four-jaw type main bearing sealing device is arranged on the rotating ring B in the main bearing of full face tunnel boring machine, when development machine works, drive four-jaw type main bearing sealing device rotates by driver element together, sealing slip ring A faying surface is close on this four-jaw type main bearing sealing device top, sliding friction is produced between the two, under the acting in conjunction of seal its own resilient and fluid pressure, the jaw top of four paws seal and the sealing slip ring A of laminating are adjacent to, the top of four jaw of four paws seal is that line style contacts when contacting with sealing slip ring A, under the acting in conjunction of both sides fluid pressure, area of contact increases, for 1/4th of existing conventional sealing contact surface, the U+V shape confined space that between four jaw of four paws seal, formation three is special, these three confined air chien shih four paws seals 1 have self-tightening, rely on the support tight gluing, sealing slip ring A surface of air in four paws self good elasticity of seal 1 and confined space, effective obstruction leakage way and obtain sealing effect, its working pressure reaches as high as 1MPa, lubricant grease pressure reaches as high as 0.5MPa, to annotate in the main bearing of full face tunnel boring machine HBW seal grease, for ensureing the sealing effect of seal grease, containing a large amount of wires and metal granule in HBW, between four-jaw type main bearing sealing device and sealing slip ring A, the surface friction drag in relative movement will be reduced because area of contact is little, also the wearing and tearing because sliding friction produces four-jaw type main bearing sealing device and sealing slip ring A will be reduced, due to the material wear-resistant antidetonation that sealing adopts, good airproof performance, and friction area is little, the heat that main bearing produces between four-jaw type main bearing sealing device and sealing slip ring A in operation process also can reduce, work progress for long distance persistency is provided good safety guarantee by this, on the seal base of four paws seal, 15mm is stretched out respectively in the both sides of four pawls, be fixed on rotating ring B with sealing clamp, avoid beating on four paws seal infringement and inconvenience that bolt hole brings, assembly process is fast convenient, is easy to safeguard in work progress.
4. a kind of full face tunnel boring machine four-jaw type main bearing sealing device according to claim 1, is characterized in that: use and the operating method of described a kind of full face tunnel boring machine four-jaw type main bearing sealing device are
,four paws seal is separately fixed on rotating ring B by utilizing sealing clamp by four-jaw type main bearing sealing device, then the rotating ring B being equipped with four-jaw type main bearing sealing device is pushed in main bearing, four road jaw of this four paws seal are adjacent to the faying surface of sealing slip ring A, with end cover E, sealing clamp and four paws seal are built, utilize stud to be connected with bull gear C by rotating ring B respectively and the connection of rotating ring B and cutterhead F.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510763038.9A CN105202191B (en) | 2015-11-11 | 2015-11-11 | A kind of full face tunnel boring machine four-jaw type main bearing sealing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510763038.9A CN105202191B (en) | 2015-11-11 | 2015-11-11 | A kind of full face tunnel boring machine four-jaw type main bearing sealing device |
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| CN105202191A true CN105202191A (en) | 2015-12-30 |
| CN105202191B CN105202191B (en) | 2017-07-28 |
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| CN201510763038.9A Active CN105202191B (en) | 2015-11-11 | 2015-11-11 | A kind of full face tunnel boring machine four-jaw type main bearing sealing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223964A (en) * | 2016-08-27 | 2016-12-14 | 中铁隧道集团有限公司 | A kind of main shaft seals of shield machine compress control method |
| CN107687329A (en) * | 2017-10-18 | 2018-02-13 | 天津宝骏科技股份有限公司 | A kind of oil field shaft mouth packing for boring sealing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223964A (en) * | 2016-08-27 | 2016-12-14 | 中铁隧道集团有限公司 | A kind of main shaft seals of shield machine compress control method |
| CN107687329A (en) * | 2017-10-18 | 2018-02-13 | 天津宝骏科技股份有限公司 | A kind of oil field shaft mouth packing for boring sealing structure |
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| Publication number | Publication date |
|---|---|
| CN105202191B (en) | 2017-07-28 |
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