CN207194900U - Shield machine thrust oil cylinder self-stabilization and adjusting apparatus - Google Patents
Shield machine thrust oil cylinder self-stabilization and adjusting apparatus Download PDFInfo
- Publication number
- CN207194900U CN207194900U CN201721264318.6U CN201721264318U CN207194900U CN 207194900 U CN207194900 U CN 207194900U CN 201721264318 U CN201721264318 U CN 201721264318U CN 207194900 U CN207194900 U CN 207194900U
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- Prior art keywords
- oil cylinder
- self
- shield machine
- cylinder
- propelling
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of shield machine thrust oil cylinder self-stabilization and adjusting apparatus, including it is separately mounted to the self-adjusting oil cylinder of both sides above and below every group of propelling cylinder；Self-adjusting oil cylinder includes laterally setting cylinder barrel and the plunger shaft being arranged on inside cylinder barrel, and two groups of piston heads and piston rod are symmetrically arranged with the both ends of plunger shaft, and walking cam is provided with the outer end of piston rod；In plunger shaft, be provided with spring between two piston heads, both ends of the spring respectively with piston head Elastic Contact；Annular slide track is equipped with the outside side face of two propelling cylinders, the side edge for cam of walking is connected in slideway, is provided with guide limiting stopper outside the opposite side of walking cam, four guide limiting stoppers are respectively and fixedly installed on the shield body dividing plate of shield machine.The utility model is swift in response, and energy adjust automatically and playback, dismounting is easy to maintenance, saves installing space, can be widely applied to all shield equipments.
Description
Technical field
It the utility model is related to tunneling shield construction Thrust System of Shield Tunneling Machines technical field, and in particular to a kind of shield machine pushes away
Enter oil cylinder self-stabilization and adjusting apparatus.
Background technology
Shield machine is the important equipment of constructing tunnel, and propulsion system therein is its most important system composition, is carry
The various functions such as the advance of shield machine, steering, pose adjustment, fixed section of jurisdiction.But shield machine thrust oil cylinder stroke is long, installation dimension
It is larger, meanwhile, its mounting means is fixed for one end, one end is hanging, because propelling cylinder degree of disturbing is larger, stability is poor, easily makes
Into accidents such as propelling cylinder oil leak, bad seals, piston rods bend, holdings, severe patient even causes powerless, the tunnel of shield machine advance
Road construction is forced the great production accidents such as stopping.Simultaneously as in the construction of tunnel meander strip or attitude of shield machine adjustment or push away
Enter the factor such as tail end sinking caused by oil cylinder dead weight, propelling cylinder center line and tunnel axle center disunity can be made, pushed away simultaneously
Enter oil cylinder and do not possess adjustment and stabilizing power in itself, propelling cylinder piston rod pushing tow section of jurisdiction is not in place, can cause section of jurisdiction fragmentation, gently
Person influences tunnel quality, and severe one causes surface subsidence, underground water the security incident such as to gush.
At present, conventional technique is one fixing device of increase in the middle part of propelling cylinder, and propelling cylinder is fixed on shield body
On dividing plate, its shortcoming is to limit the action of propelling cylinder in the dust, prevents propelling cylinder from being adjusted according to shield attitude, is being turned
Propelling cylinder and section of jurisdiction are easily damaged all the better during curved and pose adjustment.Chinese utility model patent specification
（CN102322268A）In disclose a kind of protecting device of shield machine thrust oil cylinder, its use some support cylinders come pushing tow promote
Oil cylinder, this method can play the purpose of protection propelling cylinder when turning, but can not play the self-adjusting of propelling cylinder and from steady
It is set for using, it is impossible to play a part of adjusting at any time in the whole period of motion of propelling cylinder, only in support cylinder feed flow
Shield machine thrust oil cylinder could be adjusted temporarily；Meanwhile the equipment oil cylinder quantity in the art solutions is more, can cause
Act asynchronous；Meanwhile the equipment design and manufacture error in the patent is larger, part oil cylinder is completely attached to less than operating position,
Do not load, idle stroke action, do not have the effect of protection, it is entirely ineffective；In addition, because oil cylinder is too many, oil circuit loss is big, oil cylinder
Reaction speed is slower, does not catch up with the action needs of propelling cylinder；The larger deadweight for causing propelling cylinder on the contrary of dead weight is sunk
Bending；And it is divided into some pieces and some hydraulic jacks, space-consuming is larger, complicated, can not repair.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of shield machine thrust oil cylinder self-stabilization and adjusting apparatus, purport
Shield machine thrust oil cylinder is being solved because the degree of disturbing caused by reason such as one end is fixed, one end is hanging, stroke length are larger, stability
Difference, easily damaged sealing, oil leak, the problem of causing shield machine to promote powerless, section of jurisdiction fragmentation.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of shield machine thrust oil cylinder self-stabilization and adjusting apparatus are designed, for being arranged on the upper and lower of shield machine thrust oil cylinder
Both sides, the propelling cylinder two is one group, including is separately mounted to the self-adjusting oil cylinder of both sides above and below every group of propelling cylinder, and
Two groups of self-adjusting oil cylinders relative to described two propelling cylinders line of centres setting symmetrical above and below；
The self-adjusting oil cylinder includes laterally setting cylinder barrel and the plunger shaft being arranged on inside the cylinder barrel, in the piston
The both ends of chamber are symmetrically arranged with two groups of piston heads and piston rod, and two piston rods are respectively facing outside the two-port of the cylinder barrel and set
Put, walking cam is provided with the outer end of the piston rod, passes through needle bearing between the walking cam and the piston rod
It is installed together；In the plunger shaft, be provided with spring between two piston heads, the both ends of the spring respectively with the piston head
Elastic Contact；
Annular slide track is equipped with the outside side face of two propelling cylinders, the side edge of the walking cam is connected to
In the slideway, guide limiting stopper is provided with outside the opposite side of the walking cam, four guide limiting stoppers are fixed respectively to pacify
On the shield body dividing plate of shield machine.
A kind of shield machine thrust oil cylinder self-stabilization and adjusting apparatus are devised in the above-mentioned technical solutions, for keeping shield
The stability of machine propelling cylinder, propelling cylinder is avoided because degree of disturbing is larger, stability is poor, easily deviates its centre of motion, and cause
The accidents such as propelling cylinder oil leak, bad seals, piston rods bend, holding.The propelling cylinder of shield machine is two one group, this reality
It is used to be arranged on the both sides up and down of every group of propelling cylinder, two oil cylinders with novel shield machine propelling cylinder self-stabilization and adjusting apparatus
Between position.After two groups of self-adjusting oil cylinders install, it is convex that four groups of walkings are provided with altogether in the both sides up and down of two propelling cylinders
Wheel and guide limiting stopper, when shield machine thrust oil cylinder slowly acts, the elastic force of the spring of the self-adjusting oil cylinder piston intracavitary pushes away
Dynamic both sides piston head and piston rod, make the walking cam of piston rod end be pushed up between propelling cylinder slideway and guide limiting stopper
Tightly, play a part of holding propelling cylinder tightly, reach the purpose of stable propelling cylinder.When shield machine thrust oil cylinder is quick, frequently dynamic
When making, bias motion center is susceptible to, causes above mentioned problem, now self-adjusting oil cylinder starts, and improves piston rod movement speed,
Piston rod is quickly stretched out, timely respond to the action of propelling cylinder, walking cam moves between guide limiting stopper and slideway, phase
The position of propelling cylinder is adjusted when in a handgrip, avoids propelling cylinder bias motion center.
Preferably, the walking cam is semicircle, is set in the side of the guide limiting stopper towards the walking cam
There is guiding surface, the setting of guiding surface can be further spacing to walking cam progress, when expansion link outreach increases,
The clamping force walked between cam and guide limiting stopper and slideway is stronger.
Preferably, angle≤30 ° between the guiding surface and self-adjusting oil cylinder place plane.
Preferably, the cylinder barrel is fixed on the shield body dividing plate of shield machine using stainless steel bolt, and cylinder barrel is arranged on into shield
Without being provided on propelling cylinder on the dividing plate of structure machine shield body, make the self-adjusting oil cylinder replacing easy to disassemble, while mitigate shield
The weight of structure machine propelling cylinder, optimizes its structure.
Preferably, the spring is nonlinear spring, its minimum service load >=1 ton, and the spring is more preferably resistance to
Oily rubber and metal composite material, it can promote both sides expansion link when self-adjusting oil cylinder does not work by the elastic force of its own, make
Walking cam is held out against between guide limiting stopper and slideway.
Preferably, the slideway is to be opened in the annular groove outside the propelling cylinder on side face, recessed in the annular
The packing ring of polyurethane material is provided with groove.Such slideway can avoid walking between cam and the outer wall of propelling cylinder directly
Contact, polyurethane material slideway is more wear-resisting, anti-extrusion, while has cushioning effect.
Preferably, the self-adjusting oil cylinder is hydraulic jack, with its it is supporting hydraulic power unit system is installed, it is poor to use
Dynamic rapid fluid replacement hydraulic system, piston rod can be enable to stretch out speed and improve 2 times, a cylinder double piston-rod, can guarantee that at the same feed flow,
Act simultaneously.
Preferably, it is provided with sealing in the position that the cylinder barrel both ends port encapsulation opening position is in contact with the piston rod
Circle.
Preferably, the sealing ring is polyurethane sealing ring, more wear-resisting, anti-extrusion.
The beneficial effects of the utility model are：
1. adjustment capability is strong：Bidirectional piston bar is respectively adopted in two groups of self-adjusting oil cylinders, and shield can be held out against from four direction
The propelling cylinder of structure machine, adjustment propelling cylinder rapidly return back to correct position.
2. stabilizing power is strong：Non-linear high rigidity spring is set in the plunger shaft of self-adjusting oil cylinder, in normal pressure not feed flow
State, can rely on spring walking cam is tightly supported propelling cylinder to the thrust of both sides, play stabilization.
3. round-the-clock adjustment capability：When shield machine thrust oil cylinder slowly works, stably pushed away by the spring in plunger shaft
Enter oil cylinder, when shield machine thrust oil cylinder is quick, frequent operation when, self-adjusting oil cylinder can quickly adjust piston by hydraulic control
Bar stretches, and it is coordinated the action of propelling cylinder, adjusts the position of propelling cylinder in real time, avoid its bias motion center, protects
Demonstrate,prove its stability.
4. synchronism is good：Self-adjusting oil cylinder uses double piston-rod structure, during using hydraulic power unit feed flow, can act simultaneously,
It is strong to reach synchronism.
5. good seal performance：Piston rod uses the ring structure of polyurethane material, and sealing is strong, wear-resisting, anti-extrusion effect
Fruit is more preferable.
6. it is swift in response：Using differential rapid fluid replacement hydraulic system, piston rod can be stretched out speed and improve 2 times, a cylinder
The structure of double piston-rod, it can guarantee that while feed flow while act, enable the self-adjusting oil cylinder fast according to the action of propelling cylinder
Speed is made a response, and is coordinated the action of propelling cylinder in time, is adjusted its position.
7. fixed form is good：Existing shield machine thrust oil cylinder adjusting apparatus is all mounted on propelling cylinder itself cylinder barrel
, the utility model is secured the device on the shield body dividing plate of shield machine, and packaging adjusting apparatus itself will not be oily with promoting
The action of cylinder and move, will not be by the auto- influence of propelling cylinder, it is adjusted and stabilizing power is stronger, while can be subtracted
The weight of light shield machine thrust oil cylinder, replacing easy to disassemble, optimizes its structure.
8. it is simple in construction, it is easy to maintenance：In the prior art, adjusting apparatus used is complicated, as the utility model is special
Sharp specification（CN102322268A）Disclosed in a kind of protecting device of shield machine thrust oil cylinder in, employ the branch of more than 8
Support oil cylinder, also 4 pieces of servicing units；Compared to the former, the utility model only has two group oil cylinders, and four cams are simple in construction, tear open
Unload, be easy to maintenance, greatly having saved cost, improving efficiency.
Brief description of the drawings
Fig. 1 is that the utility model shield machine thrust oil cylinder self-stabilization and adjusting apparatus are arranged on shield machine thrust oil cylinder
Structural representation；
Fig. 2 is the structural representation of self-adjusting oil cylinder；
Label in figure：1 is the shield body dividing plate of shield machine；2 be propelling cylinder；3 be guide limiting stopper；4 be walking cam；5
For needle bearing；6 be cylinder barrel；7 be spring；8 be piston head；9 be sealing ring；10 be piston rod；11 be plunger shaft；12 be cunning
Road.
Embodiment
Illustrate specific embodiment of the present utility model with reference to embodiment, but following examples are used only in detail
Illustrate the utility model, do not limit the scope of the utility model in any way.Involved equipment in the examples below
Element is conventional equipment element unless otherwise instructed；The involved raw material of industry is commercially available conventional work unless otherwise instructed
Industry raw material.
Embodiment 1：A kind of shield machine thrust oil cylinder self-stabilization and adjusting apparatus, for being arranged on shield machine thrust oil cylinder
Upper and lower both sides, the propelling cylinder of shield machine is two one group, the utility model shield machine thrust oil cylinder self-stabilization and adjustment dress
Put for the position between the both sides up and down of every group of propelling cylinder, two oil cylinders.The device includes being separately mounted to often
The self-adjusting oil cylinder of both sides above and below group propelling cylinder, and on the line of centres of two groups of self-adjusting oil cylinders relative to two propelling cylinders
Under be symmetrical arranged, referring to Fig. 1, Fig. 2, self-adjusting oil cylinder is hydraulic jack, and supporting hydraulic power unit system is provided with its.Self-adjusting
Oil cylinder includes laterally setting cylinder barrel 6 and the plunger shaft 11 being arranged on inside cylinder barrel 6, and cylinder barrel 6 is fixed on shield using stainless steel bolt
On the shield body dividing plate 1 of structure machine.Two groups of piston heads 8 and piston rod 10, two piston rods are symmetrically arranged with the both ends of plunger shaft 11
10 are respectively facing setting outside the two-port of cylinder barrel 6, in the position that the both ends port encapsulation opening position of cylinder barrel 6 is in contact with piston rod 10
Sealing ring 9 is installed, sealing ring 9 is polyurethane sealing ring.Walking cam 4 is provided with the outer end of piston rod 10, cam 4 of walking
It is installed together between piston rod 10 by needle bearing 5；Spring 7 is provided with plunger shaft 11, between two piston heads 8,
The both ends of the spring 7 piston head Elastic Contact with both sides respectively；Spring 7 is oil resistant rubber and the nonlinear elasticity of metal composite material
Spring, its minimum service load >=1 ton.
Annular slide track 12 is equipped with the outside side face of two propelling cylinders, the structure of slideway 12 is：In two propulsions
Offer annular groove on the outside side face of oil cylinder, the depth of groove is provided with polyurethane in 50mm or so in annular groove
The packing ring of material.Cam 4 of walking is connected in slideway 12 for semicircle, one lateral edges, outside the opposite side of walking cam 4
Provided with guide limiting stopper 3, four guide limiting stoppers are respectively and fixedly installed on the shield body dividing plate 1 of shield machine, in guide limiting stopper 3
Being provided with guiding surface towards the side of walking cam, the angle between guiding surface and self-adjusting oil cylinder place plane is 20~
30°。
Specific works mode of the present utility model is：
When propelling cylinder slowly acts, propelling cylinder pushing tow on the section of jurisdiction at rear portion, slowly stretch out, movement range compared with
Small, thrust is larger.Under such a state, propelling cylinder both ends are fixed, and now propelling cylinder propelling resistance is larger, should be to stabilize to
It is main；Now, the hydraulic power unit system of self-adjusting oil cylinder does not work, and promotes piston rod outside by the elastic force of the spring in plunger shaft
Motion, promote walking cam to be held out against between guide limiting stopper and slideway and play a part of holding propelling cylinder tightly, reach stable and push away
Enter the purpose of oil cylinder.
When propelling cylinder is quick, frequent movement when, be easy to bias motion center, under such a state, hydraulic power unit system is given
Self-adjusting oil cylinder provides highly pressurised liquid, and liquid quickly adds to plunger shaft, increases plunger shaft flow, improves the motion speed of piston rod
Degree；Piston head and piston rod are quick to stretch out under the dual thrust of high pressure, big flow liquid and high rigidity rubber-spring complex,
Timely respond to the action of propelling cylinder；Both sides piston rod is simultaneously quick to be stretched out, and is made walking cam in guide limiting stopper and is promoted oil
Under the guiding of slideway on cylinder, equivalent to one handgrip is adjusted to propelling cylinder；Self-adjusting oil cylinder with double piston-rod
It is arranged symmetrically with walking cam centered on propelling cylinder, in the case where piston rod stretches out and walking cam travels forward, upper and lower both sides
Four direction produces component, promotes propelling cylinder rapidly to keep in the center, propelling cylinder cylinder body can be controlled not tilt well,
Sink, bend etc..
The utility model is described in detail above in conjunction with embodiment, but person of ordinary skill in the field's energy
It is enough to understand, on the premise of the utility model aims are not departed from, each design parameter in above-described embodiment can also be carried out
Change, forms multiple specific embodiments, is common excursion of the present utility model, is no longer described in detail one by one herein.
Claims (9)
1. a kind of shield machine thrust oil cylinder self-stabilization and adjusting apparatus, for being arranged on the both sides up and down of shield machine thrust oil cylinder,
The propelling cylinder two is one group, it is characterised in that the self-adjusting including being separately mounted to both sides above and below every group of propelling cylinder
Oil cylinder, and two groups of self-adjusting oil cylinders are relative to the line of centres setting symmetrical above and below of described two propelling cylinders；
The self-adjusting oil cylinder includes laterally setting cylinder barrel and the plunger shaft being arranged on inside the cylinder barrel, in the plunger shaft
Both ends are symmetrically arranged with two groups of piston heads and piston rod, and two piston rods are respectively facing outside the two-port of the cylinder barrel and set,
Walking cam is provided with the outer end of the piston rod, is installed between the walking cam and the piston rod by needle bearing
Together；In the plunger shaft, spring is provided between two piston heads, the both ends of the spring is elastic with the piston head respectively
Contact；
Annular slide track is equipped with the outside side face of two propelling cylinders, the side edge for walking cam is connected to described
In slideway, guide limiting stopper is provided with outside the opposite side of the walking cam, four guide limiting stoppers are respectively and fixedly installed to
On the shield body dividing plate of shield machine.
2. shield machine thrust oil cylinder self-stabilization according to claim 1 and adjusting apparatus, it is characterised in that the walking is convex
Take turns as semicircle, guiding surface is provided with the side of the guide limiting stopper towards the walking cam.
3. shield machine thrust oil cylinder self-stabilization according to claim 2 and adjusting apparatus, it is characterised in that described to be oriented to tiltedly
Angle between plane where face and the self-adjusting oil cylinder is 20~30 °.
4. shield machine thrust oil cylinder self-stabilization according to claim 1 and adjusting apparatus, it is characterised in that the cylinder barrel is adopted
It is fixed on stainless steel bolt on the shield body dividing plate of shield machine.
5. shield machine thrust oil cylinder self-stabilization according to claim 1 and adjusting apparatus, it is characterised in that the spring is
Nonlinear spring, its minimum service load >=1 ton.
6. shield machine thrust oil cylinder self-stabilization according to claim 1 and adjusting apparatus, it is characterised in that the slideway is
The annular groove on side face outside the propelling cylinder is opened in, the pad of polyurethane material is provided with the annular groove
Circle.
7. shield machine thrust oil cylinder self-stabilization according to claim 1 and adjusting apparatus, it is characterised in that the self-adjusting
Oil cylinder is hydraulic jack, and supporting hydraulic power unit system is provided with its.
8. shield machine thrust oil cylinder self-stabilization according to claim 1 and adjusting apparatus, it is characterised in that in the cylinder barrel
The position that both ends port encapsulation opening position is in contact with the piston rod is provided with sealing ring.
9. shield machine thrust oil cylinder self-stabilization according to claim 8 and adjusting apparatus, it is characterised in that the sealing ring
For polyurethane sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721264318.6U CN207194900U (en) | 2017-09-29 | 2017-09-29 | Shield machine thrust oil cylinder self-stabilization and adjusting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721264318.6U CN207194900U (en) | 2017-09-29 | 2017-09-29 | Shield machine thrust oil cylinder self-stabilization and adjusting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207194900U true CN207194900U (en) | 2018-04-06 |
Family
ID=61786335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721264318.6U Withdrawn - After Issue CN207194900U (en) | 2017-09-29 | 2017-09-29 | Shield machine thrust oil cylinder self-stabilization and adjusting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207194900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476811A (en) * | 2017-09-29 | 2017-12-15 | 中铁隧道局集团有限公司 | Shield machine thrust oil cylinder self-stabilization and adjusting apparatus |
| CN111535822A (en) * | 2020-05-15 | 2020-08-14 | 周亚新 | Stabilizing device for shield body of shield machine |
-
2017
- 2017-09-29 CN CN201721264318.6U patent/CN207194900U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476811A (en) * | 2017-09-29 | 2017-12-15 | 中铁隧道局集团有限公司 | Shield machine thrust oil cylinder self-stabilization and adjusting apparatus |
| CN107476811B (en) * | 2017-09-29 | 2023-05-23 | 中铁隧道局集团有限公司 | Self-stabilizing and adjusting device for shield machine thrust cylinder |
| CN111535822A (en) * | 2020-05-15 | 2020-08-14 | 周亚新 | Stabilizing device for shield body of shield machine |
| CN111535822B (en) * | 2020-05-15 | 2021-09-14 | 江苏省无锡交通高等职业技术学校 | Stabilizing device for shield body of shield machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180406 Effective date of abandoning: 20230523 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180406 Effective date of abandoning: 20230523 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |