CN204716660U - A kind of structure preventing shield machine list propelling cylinder piston rod from deflecting - Google Patents
A kind of structure preventing shield machine list propelling cylinder piston rod from deflecting Download PDFInfo
- Publication number
- CN204716660U CN204716660U CN201520448100.0U CN201520448100U CN204716660U CN 204716660 U CN204716660 U CN 204716660U CN 201520448100 U CN201520448100 U CN 201520448100U CN 204716660 U CN204716660 U CN 204716660U
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- CN
- China
- Prior art keywords
- piston rod
- shield machine
- propelling cylinder
- cylinder piston
- pilot sleeve
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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.)
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Abstract
The utility model provides a kind of structure preventing shield machine list propelling cylinder piston rod from deflecting.The described structure preventing shield machine list propelling cylinder piston rod from deflecting comprises two the anti-bias mechanisms being fixedly connected with the support boots outer wall left and right sides; Or comprise the scaffold being fixedly connected with piston-rod end and two the anti-bias mechanisms being fixedly connected with scaffold; Anti-bias mechanism comprises bearing, adjustment bolt, adjustment block, elastic component, pilot sleeve and support platform; Bearing is fixedly connected with support boots outer wall or connection frame, in bearing, vertically interior threaded hole is set, tapped hole is located at by adjustment bolt, and top arranges adjustment block, elastic component is vertically arranged and its bottom connects adjustment block, and top connects the inner roof wall of pilot sleeve, and pilot sleeve lower ending opening, upper end close, and vertically breach is set, top outer wall arranges support platform.The structure that what the utility model provided prevent shield machine list propelling cylinder piston rod from deflecting, can make support boots plate, rubber seal not fragile, can increase work efficiency simultaneously, increases Security.
Description
Technical field
The utility model relates to engineering machinery field, particularly, relates to a kind of structure preventing shield machine list propelling cylinder piston rod from deflecting.
Background technique
In the shield-tunneling construction process of tunnelling works, because the calibration of section of jurisdiction is varied, cause the layout of propelling cylinder also varied, comprise single cylinder layout, twin-tub arranges and single twin-tub replaces the multiple arrangements such as layout.When oil cylinder adopts twin-tub to arrange, two piston-rod ends generally share support boots, such piston rod two piston rods in the process of stretching out there will not be the deflection action along piston rod circumference because structure limits mutually, and namely two driving cylinder there will not be piston rod and supports circumferential deflection (rotate) action of boots relative to cylinder block.Single propelling cylinder is then different, stretch out at piston rod until touch in the process of section of jurisdiction inside shield tail, because piston rod does not limit its structure deflected in circumference, circumferential deflection will be there is gradually at many factors comprehensive function lower piston rods such as support boots gravity, the even frictional force of piston rod circumferential asymmetry, and then drive the support boots be attached thereto to deflect.
After the support boots of cylinder piston rod end deflect, destroy support boot upper plate and the normal fit-state of section of jurisdiction, cause only some support boots to contact with section of jurisdiction, be degrading the stress supportting boots and piston rod, even cause supportting boots plate and damaged by pressure; Secondly, the support boots of deflection will directly compress the rubber seal being arranged on side, section of jurisdiction, and long uneven pressurized and lateral force will cause the destruction of section of jurisdiction rubber seal.In addition, in order to correct the piston rod deflection occurred, workmen manually must will support boots " righting " after shield machine stops propelling, and this process not only affects construction speed but also easily have an accident.Therefore, prevent single propelling cylinder support boots deflection of shield machine from becoming shield machine design and use process problem demanding prompt solution.
Prior art literature search is found, the patent No. is CN201120217566, name is called that the technological scheme of " single-hold-boot anti-rotating oil cylinder of shield machine " is matched by guide pad on the piston rod and the gib block on shield tail and realizes anti-deflection function, but the gap between the guide pad of the program and shield tail inwall and the gap between gib block and support boots side all can not be too little, otherwise the rotation that can limit between shield tail and front shield body (middle shield), this is by the relative rotation angle between restriction shield tail and the shield body (middle shield) installing oil cylinder, for articulated shield machine, mean that radius of turn will increase greatly, and then reduce the cornering ability of shield machine.
The patent No. is CN202833412U, name is called " Deflection-preventinmultistage multistage oil cylinder ", the patent No. is CN202833401U, name is called that the technological scheme of " the anti-deflection hydraulic jack with guide function " these two patents is all by arranging the circumferential deflection that the keyway with guiding and limit function prevents piston rod at piston rod center, but piston rod village hollowing must reduce its rigidity, thus reduction bearing capacity, complex structure in addition, processing cost is higher.
Model utility content
For overcoming the deficiency in background technique, the utility model provides a kind of structure preventing shield machine list propelling cylinder piston rod from deflecting, make support boots plate, rubber seal not fragile, under the condition not affecting shield machine turn performance, solve the problem that the deflection of single propelling cylinder piston rod is difficult, safe and reliable, can various diameter and type of arrangement be adapted to.
The described structure preventing shield machine list propelling cylinder piston rod from deflecting is as follows:
Comprise two the anti-bias mechanisms being fixedly connected on the left and right sides on support boots outer wall;
Or comprising the scaffold being fixedly connected on piston-rod end and two the anti-bias mechanisms be fixedly connected on scaffold, described two anti-bias mechanisms are positioned at the left and right sides of piston-rod end or the left and right sides of support boots outer wall;
Described anti-bias mechanism comprises bearing, adjustment bolt, adjustment block, elastic component, pilot sleeve and support platform, described bearing is fixedly connected on support boots outer wall or is fixedly connected on described scaffold for supporting anti-bias mechanism, interior threaded hole is vertically provided with for being connected with described adjustment bolt thread in described bearing, described adjustment bolt is arranged on the vertical original length for adjustable elastic part in tapped hole, the top of adjustment bolt is fixedly installed adjustment block, described elastic component is vertically arranged and its bottom is fixedly connected in described adjustment block, the top of elastic component is fixedly connected on the inner roof wall of pilot sleeve, pilot sleeve is lower ending opening, the vertical sleeve that upper end is closed, pilot sleeve is provided with breach and makes pilot sleeve in shield machine using process can relative to bearing in vertical height, adjustment bolt and adjustment block vertical motion, pilot sleeve top outer wall is fixedly installed support platform, and described support platform can contact with described shield machine inner roof wall and bear power that described elastic component transmits to regulate the attitude of two the anti-bias mechanisms in left and right.
According to a preferred embodiment of the present utility model, described anti-bias mechanism also comprises the stop screw being positioned at side, described pilot sleeve bottom.
According to a preferred embodiment of the present utility model, the superstructure of described support platform has round and smooth outer surface.
According to a preferred embodiment of the present utility model, the level cross-sectionn of described bearing is T-shaped or I shape.
According to a preferred embodiment of the present utility model, the center in the face that described adjustment block contacts with described elastic component is also provided with a cylindrical boss, and correspondingly on the inner roof wall of described pilot sleeve is also provided with a cylindrical boss.
According to a preferred embodiment of the present utility model, described elastic component is metal spring or rubber spring.
According to a preferred embodiment of the present utility model, described support platform is hemisphere or roller.
According to a preferred embodiment of the present utility model, described scaffold at least has symplex structure in a direction and has the attachment face of applicable anti-bias mechanism installation in symmetrical structure both sides.
The technological scheme that the utility model provides has following beneficial effect:
1, by arranging described anti-bias mechanism, utilize the cooperation of described pilot sleeve, described elastic component and described bolt, equilibrium position can be automatically returned to when described piston rod is deflected, effectively prevent the deflection of the piston rod generation circumferencial direction of single propelling cylinder, make support boots plate and section of jurisdiction rubber seal not fragile;
2, this programme structure is simple, easy for installation, does not affect the structural configuration near original single propelling cylinder, does not also need to transform original shield structure, do not affect shield machine turn performance;
3, shield machine radius of turn that documents produces can not be quoted in production background technology increases the cornering ability caused and reduce and the problem of piston rod intensity reduction;
4, described anti-bias mechanism has adjustment repair function after the wearing and tearing that work long hours, and efficiency is improved, adds Security simultaneously.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the mounting structure figure of single propelling cylinder piston rod of the prior art;
Fig. 2 is the A-A sectional drawing of Fig. 1, is also piston rod deflection state schematic diagram;
Fig. 3 is the mounting structure figure of single propelling cylinder piston rod of mode of execution one;
Fig. 4 is the B-B sectional drawing of Fig. 3;
Fig. 5 is a kind of structural drawing of anti-bias mechanism;
Fig. 6 is the C-C sectional drawing of Fig. 5;
Fig. 7 is the D-D sectional drawing of Fig. 5;
Fig. 8 is that mode of execution one places an order at shield structure turn condition the installment state figure of propelling cylinder piston rod;
Fig. 9 is the structural drawing of another kind of anti-bias mechanism;
Figure 10 is the mounting structure figure of single propelling cylinder piston rod of mode of execution two;
Figure 11 is the E-E sectional drawing of Figure 10;
In figure: 1: section of jurisdiction, 2: section of jurisdiction sealing, 3: propelling cylinder cylinder barrel, 4: piston rod, 5: support boots, 6: shield tail, 7: front middle shield, 8: anti-bias mechanism, 81: bearing, 82: adjustment bolt, 83: adjustment block, 84: elastic component, 85: pilot sleeve, 86: support platform, 87: stop screw, 88: boss, 9: scaffold.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can limit according to claim and cover is implemented.
Refer to Fig. 1 ~ Fig. 5, the described structure preventing shield machine list propelling cylinder piston rod from deflecting, comprise two anti-bias mechanisms 8 and a scaffold 9, described scaffold 9 is located on described piston rod 4 end, and being positioned at support boots 5 front, described anti-bias mechanism 8 is fixedly mounted on described scaffold 9 both sides;
Described scaffold 9 at least has symplex structure in a direction, and has the attachment face of applicable described anti-bias mechanism 8 installation in symmetrical structure both sides;
Described anti-bias mechanism comprises bearing 81, adjustment bolt 82, adjustment block 83, elastic component 84, pilot sleeve 85 and support platform 86, described bearing 81 is fixedly connected on described support boots 5 outer wall for supporting anti-bias mechanism, interior threaded hole is vertically provided with for being threaded with described adjustment bolt 82 in described bearing 81, described adjustment bolt 82 is arranged in tapped hole for regulating the vertical original length of described elastic component 84, the top of described adjustment bolt 82 is fixedly installed described adjustment block 83, described elastic component 84 vertically arranges and its bottom is fixedly connected in described adjustment block 83, the top of described elastic component 84 is fixedly connected on the inner roof wall of described pilot sleeve 85, described pilot sleeve 85 is lower ending opening, the vertical sleeve that upper end is closed, described pilot sleeve 85 is provided with a breach and makes pilot sleeve 85 described in shield machine using process can relative to described bearing 81 in vertical height, described adjustment bolt 82 and adjustment block vertical motion, described pilot sleeve 85 top outer wall is fixedly installed described support platform 86, and described support platform 86 can contact with described shield machine inner roof wall and bear power that described elastic component transmits to regulate the attitude of two the anti-bias mechanisms in left and right.
Described pilot sleeve 85 is a square hollow structure, and its one end is closed and arranged support platform 86 above, and described support platform 86 is fixedly connected with the closed end of described pilot sleeve 85, and the other end is provided with stop screw 87.
The superstructure of described support platform 86 has round and smooth outer surface, and bottom is fixedly connected with described pilot sleeve 85.
Described bearing 81 section configuration is T-shaped, and there is a tapped through hole inside, and the section configuration of described bearing 81 also can be I shape as required.The section configuration of described adjustment block 83 is mated with the section of pilot sleeve 85 endoporus and this section configuration allows adjustment block 83 to slide along described pilot sleeve 85 endoporus, and there is a cylindrical boss 88 at the center in the face that described adjustment block 83 contacts with described elastic component 84.
Mode of execution one: refer to Fig. 3 ~ Fig. 7, the correct inflection point supportting boots 5 according to single propelling cylinder adjusts the relative position of described piston rod 4 and described propelling cylinder cylinder barrel 3, using the position of this correct described piston rod 4 as the reference for installation of scaffold described in rear portion 9 and described support boots 5.Described scaffold 9 is fixedly installed in described piston rod 4 end, and the symmetry plane of described scaffold 9 is by the axis of described piston rod 4 and the axis (or center of circle) of described shield tail 6.Fixedly mounting two described anti-bias mechanisms 8 in described scaffold 9 bilateral symmetry, should guarantee that when installing described anti-bias mechanism 8 the described support platform 86 of this mechanism keeps in touch or leave comparatively small―gap suture with described shield tail 6 inwall.Described pilot sleeve 85 is installed on outside described bearing 81, and vertically can slide along described bearing 81, then described stop screw 87 to be screwed on described pilot sleeve 85 corresponding tapped hole and through this tapped hole, from landing bearing 81 when being subject to described elastic component 84 elastic force upwards to prevent described pilot sleeve 85.
When described piston rod 4 stretches out backward, the described scaffold 9 being positioned at rear portion and the described anti-bias mechanism 8 being fixedly installed in described scaffold 9 both sides move with described piston rod 4, in mobile (shield machine is pushed ahead) process, the described support platform 86 of described anti-bias mechanism 8 is adjacent to described shield tail 6 inwall or keeps comparatively small―gap suture all the time.When described piston rod 4 circumferentially deflects, the described elastic component 84 of the described anti-bias mechanism 8 of described scaffold 9 side is compressed, described support platform 86 and the inwall of described shield tail 6 of the described elastic component 84 of opposite side disengage or described elastic component 84 pressure reduces, described piston rod 4 is now subject to a moment of torsion contrary with its deflection direction, its circumferential deflection degree increases, moment of torsion also increases thereupon, and under the torsional interaction that this is contrary with described piston rod 4 deflection direction, described piston rod 4 progressively gets back to original equilibrium position.
Refer to Fig. 8, when shield machine is turned, in before described, shield 7 and described tail shield 6 deflect, described piston rod 4 necessarily deflects to the corresponding appearance of described shield tail 6 thus causes being positioned at the described scaffold 9 of its afterbody and the pitch smaller of described support boots 5 and described shield tail 6 inwall, now be installed on the described elastic component 84 pressurized retraction of the described anti-bias mechanism 8 of described scaffold 9 both sides, and then make the described support platform 86 of described anti-bias mechanism 8 automatically adapt to the change in location of described shield tail 6 inwall, rigid collision or the constructive interference of described shield tail 6 inwall and described anti-bias mechanism 8 can not be there is, therefore the setting of described anti-bias mechanism 8 can not produce the deflection angle of front middle shield 7 and described shield tail 6 described in shield machine and limit.When the accumulation driving distance of shield machine is very long, the described support platform 86 of described anti-bias mechanism 8 may affect the contact with described shield tail 6 inwall because of long-time with the fricative wearing and tearing of described shield tail 6 inwall, now rotatable described adjustment bolt 82 makes it to the direction suitably movement compressing described elastic component 84, adjust described support platform 86 and the distance of described shield tail 6 inwall with this, return to required compression degree fast.When tunnel has dipping and heaving, the working method of described support platform 86 is identical with during turning, and same adjustable described support boots 5 make its unlikely interference and collision, do not repeat them here.
Refer to Fig. 9, preferably, the described support platform 86 of described anti-bias mechanism 8 is hemisphere or roller.
Preferably, described elastic component 84 is metal spring or rubber spring.
Mode of execution two: refer to Figure 10 and Figure 11, according to mode of execution one same steps, described piston rod 4 and described support boots 5 are put to tram, described anti-bias mechanism 8 being fixedly installed in described support boots 5 both sides, guaranteeing that when installing described anti-bias mechanism 8 described support platform 86 is adjacent to described shield tail 6 inwall and described elastic component 84 is subject to certain compression.When shield machine is turned, the working procedure of described anti-bias mechanism 8 is identical with mode of execution one with deviating correcting principle.
The technological scheme that the utility model provides has following beneficial effect:
1, by arranging described anti-bias mechanism 8, utilize the cooperation of described pilot sleeve 85, described elastic component 84 and described adjustment bolt 82, equilibrium position can be automatically returned to when described piston rod 4 is deflected, effectively prevent the piston rod 4 of single propelling cylinder from the deflection of circumferencial direction occurring, make support boots plate and rubber seal not fragile;
2, this programme structure is simple, easy for installation, does not affect the structural configuration near original single propelling cylinder, does not also need to transform original shield structure, do not affect shield machine turn performance;
3, shield machine radius of turn that documents produces can not be quoted in production background technology increases the cornering ability caused and reduce and the problem of described piston rod semi-finals degree reduction;
4, described anti-bias mechanism 8 has adjustment repair function after the wearing and tearing that work long hours, and efficiency is improved, adds Security simultaneously.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. the structure preventing shield machine list propelling cylinder piston rod from deflecting, is characterized in that:
Comprise two the anti-bias mechanisms (8) being fixedly connected on the left and right sides on support boots (5) outer wall;
Or comprising the scaffold (9) being fixedly connected on piston rod (4) end and two the anti-bias mechanisms (8) be fixedly connected on scaffold, described two anti-bias mechanisms are positioned at the left and right sides of piston-rod end or the left and right sides of support boots (5) outer wall;
Described anti-bias mechanism comprises bearing (81), adjustment bolt (82), adjustment block (83), elastic component (84), pilot sleeve (85) and support platform (86), described bearing is fixedly connected on support boots outer wall or is fixedly connected on described scaffold for supporting anti-bias mechanism, interior threaded hole is vertically provided with for being connected with described adjustment bolt thread in described bearing, described adjustment bolt is arranged on the vertical original length for adjustable elastic part in tapped hole, the top of adjustment bolt is fixedly installed adjustment block, described elastic component is vertically arranged and its bottom is fixedly connected in described adjustment block, the top of elastic component is fixedly connected on the inner roof wall of pilot sleeve, pilot sleeve is lower ending opening, the vertical sleeve that upper end is closed, pilot sleeve is provided with breach and makes pilot sleeve in shield machine using process can relative to bearing in vertical height, adjustment bolt and adjustment block vertical motion, pilot sleeve top outer wall is fixedly installed support platform, and described support platform can contact with described shield machine inner roof wall and bear power that described elastic component transmits to regulate the attitude of two the anti-bias mechanisms in left and right.
2. the structure preventing shield machine list propelling cylinder piston rod from deflecting according to claim 1, is characterized in that: described anti-bias mechanism also comprises the stop screw (87) being positioned at side, described pilot sleeve bottom.
3. the structure preventing shield machine list propelling cylinder piston rod from deflecting according to claim 1, is characterized in that: the superstructure of described support platform has round and smooth outer surface.
4. the structure preventing shield machine list propelling cylinder piston rod from deflecting according to claim 1, is characterized in that: the level cross-sectionn of described bearing is T-shaped or I shape.
5. the structure preventing shield machine list propelling cylinder piston rod from deflecting according to claim 1, it is characterized in that: the center in the face that described adjustment block contacts with described elastic component is also provided with a cylindrical boss (88), and correspondingly on the inner roof wall of described pilot sleeve be also provided with a cylindrical boss.
6. the structure preventing shield machine list propelling cylinder piston rod from deflecting according to claim 1, is characterized in that: described elastic component is metal spring or rubber spring.
7. the structure preventing shield machine list propelling cylinder piston rod from deflecting according to claim 1, is characterized in that: described support platform is hemisphere or roller.
8. the structure preventing shield machine list propelling cylinder piston rod from deflecting according to claim 1, is characterized in that: described scaffold at least has symplex structure in a direction and has the attachment face of applicable anti-bias mechanism installation in symmetrical structure both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520448100.0U CN204716660U (en) | 2015-06-26 | 2015-06-26 | A kind of structure preventing shield machine list propelling cylinder piston rod from deflecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520448100.0U CN204716660U (en) | 2015-06-26 | 2015-06-26 | A kind of structure preventing shield machine list propelling cylinder piston rod from deflecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716660U true CN204716660U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520448100.0U Withdrawn - After Issue CN204716660U (en) | 2015-06-26 | 2015-06-26 | A kind of structure preventing shield machine list propelling cylinder piston rod from deflecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976181A (en) * | 2015-06-26 | 2015-10-14 | 中国铁建重工集团有限公司 | Structure for avoiding deflection of single propulsion oil cylinder piston rod of shield tunneling machine |
| CN113606205A (en) * | 2021-08-04 | 2021-11-05 | 盾构及掘进技术国家重点实验室 | TBM props boots device based on distributing type initiative plunger |
-
2015
- 2015-06-26 CN CN201520448100.0U patent/CN204716660U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976181A (en) * | 2015-06-26 | 2015-10-14 | 中国铁建重工集团有限公司 | Structure for avoiding deflection of single propulsion oil cylinder piston rod of shield tunneling machine |
| CN104976181B (en) * | 2015-06-26 | 2017-08-25 | 中国铁建重工集团有限公司 | A kind of structure for preventing shield machine list propelling cylinder piston rod from deflecting |
| CN113606205A (en) * | 2021-08-04 | 2021-11-05 | 盾构及掘进技术国家重点实验室 | TBM props boots device based on distributing type initiative plunger |
| CN113606205B (en) * | 2021-08-04 | 2023-09-15 | 盾构及掘进技术国家重点实验室 | TBM props boots device based on distributed initiative plunger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20170825 |