CN204827458U - External impulse type shield structure machine device that misses stop - Google Patents
External impulse type shield structure machine device that misses stop Download PDFInfo
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- CN204827458U CN204827458U CN201520657172.6U CN201520657172U CN204827458U CN 204827458 U CN204827458 U CN 204827458U CN 201520657172 U CN201520657172 U CN 201520657172U CN 204827458 U CN204827458 U CN 204827458U
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- shield machine
- shield
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- rail
- stop
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Abstract
The utility model provides an external impulse type shield structure machine device that misses stop. External impulse type shield structure machine device that misses stop includes running gear and advancing device, and running gear comprises left and right walking rail, two leading walking dollies and two rearmounted walking dollies, and the walking rail is laid on the shield constructs the shield structure machine walking axis of quick -witted bracket front side, and four sets of walking dollies correspond the welding in shield structure machine bottom after shield structure machine breaks away from the bracket to with left and right walking rail sliding connection, advancing device comprises hydraulic power unit, two counter -force supports and two thrust cylinder, and two counter -force supports construct at the shield to be fixed respectively on the shield constructs the left and right walking rail of tail portion after the machine breaks away from the bracket, and two thrust cylinder's one end is fixed respectively on two rearmounted walking dollies, and the other end is fixed on the counter -force support that corresponds. The utility model discloses can nimble control the shield and construct quick -witted direction of advance, guarantee steady lapse of the shield structure owner body, both can wholly miss the stop, can carry out the components of a whole that can function independently again and miss the stop, adapt to any requirement of missing the stop.
Description
Technical field
The utility model relates to a kind of shield structure and crosses station arrangement, and specifically namely one is applicable to shield machine entirety, again can the external pusher shield machine station-crossing device that misses the stop of split.
Background technology
Along with fast development that is social and city, Underground Rail Transit more and more becomes the Main Means alleviating urban traffic pressure.Shield machine, as the modern underground engineering construction machinery of one, plays an important role in subway construction.In shield-tunneling construction, technique on shield machine's station-crossing is an important procedure of shield-tunneling construction, because of the limited space in station, and the volume of shield structure and comparatively large from weight average, therefore shield structure misses the stop, construction often faces very large difficulty.The mode that current domestic shield structure misses the stop is varied, but nearly all method is carried out missing the stop starting and all needed more than 20 days, and use supporting to cross station equipment more, not only had a strong impact on the duration of shield-tunneling construction, also caused the loss of economic benefit.
Conventional missing the stop is divided into two kinds, namely utilizes the split of Anterior crossbite formula to miss the stop and utilizes shield body propelling cylinder entirety to miss the stop.Towed when missing the stop shield body progression be sliding, need to arrange respectively the vertical lifting body on the haulage gear in shield structure front, shield body and the horizontal propulsive mechanism between bracket and shield body, complex process, required supporting to cross station equipment more.When utilizing shield machine thrust oil cylinder entirety to miss the stop, shield body progression is wheel roll-type, because there is the larger discrepancy in elevation between propelling cylinder and traveling steel rail, rail not only bears larger pulling force when shield driving, also needs to bear larger moment of torsion, causes rail to be easily out of shape the situation of fracture.The a certain object Integratively of Wuhan subway misses the stop in construction, and because repeatedly there is rail fracture phenomenon, shield structure turnaround on airport reaches nearly 2 months.
Above-mentioned two kinds of shield structures miss the stop method, and its compliance all exists larger defect.Especially, under some specific environment, above-mentioned two kinds of methods of missing the stop are adopted all cannot to meet construction needs.Such as, cross 123m open excavation section after Hefei metro project shield structure turns around in high ferro station, because shield structure has carried out turning around operation, therefore entirety cannot be adopted to miss the stop.Simultaneously narrow space in open excavation section, shield machine two side clearance is only 200mm, adopts bracket traction to miss the stop and accurately cannot control shield structure advance circuit, shield body easily and side wall extrude, the difficulty of reach is very big.Therefore, research one can accurately control advance circuit and conveniently shield structure misses the stop method, produces great impact by shield-tunneling construction.
Summary of the invention
The purpose of this utility model be to provide a kind of with low cost, be namely applicable to shield machine entirety, be applicable to again the external pusher shield machine station-crossing device that split is missed the stop.
The technical scheme that the utility model provides: the external pusher shield machine station-crossing device of described one, comprise running gear and propulsion plant, described running gear is made up of left and right traveling steel rail, the two preposition walking dollies of cover and the rearmounted walking dolly of two covers, traveling steel rail is laid on the shield machine walking axis on front side of shield machine bracket, four cover walking dollies correspondence after shield machine departs from bracket is welded on bottom shield machine, and is slidably connected with left and right traveling steel rail; Described propulsion plant is arranged on the shield tail of shield machine, be made up of hydraulic power unit, two reaction supports and two propelling cylinders, two reaction supports are separately fixed on the left and right traveling steel rail of shield machine afterbody after shield machine departs from bracket, one end of two propelling cylinders is fixed on the rearmounted walking dolly of two covers of shield machine respectively by cylinder support, and the other end is fixed on corresponding reaction support.
The utility model is technical scheme preferably: the preposition walking dolly of described two cover is symmetrically welded at the position from cutterhead otch ring 0.8 ~ 1.2m on front side of shield machine, and the rearmounted walking dolly of two covers is symmetrically welded at shield machine from shield tail and shield body hinged place toward the position of cutterhead 0.89m; Often pair of walking dolly is by arc dolly erection support and welding shield machine, and the curved mounting surface of arc dolly erection support is identical with the radian bottom shield machine, can fit tightly with shield machine shell.
The utility model is technical scheme preferably: the spacing of described left and right traveling steel rail is 1.9 ~ 2.8m, left and right traveling steel rail is selected and can be selected 43 rail, or 50 rail, 60 rail, and reaction support installing hole is pre-set on left and right rail, aperture is 40mm.
The utility model is technical scheme preferably: described propelling cylinder selects 10 ~ 200T hydraulic jack, and oil cylinder stroke is 250 ~ 3600mm, and two propelling cylinders are single control or coordinated signals.
The beneficial effects of the utility model: 1. the utility model adopts external hydraulic jack to provide driving force, external propelling cylinder has two, respectively on the corresponding walking dolly be arranged on rear side of shield machine main body, make the discrepancy in elevation between external propelling cylinder and walking dolly less, two external oil cylinder center lines are lower to the gap ratio of rail, the moment of flexure that rail produces is little, and rail is not easy distortion fracture, and shield machine direction of advance controls flexibly;
2. the utility model adopts four cover walking dollies, be welded on the forward and backward of shield machine main body respectively, the steady passing of shield machine main body can be ensured, and walking dolly is connected with shield machine main body by arc erection support, the curved mounting surface of its arc erection support becomes the same radian with shield machine outer wall, walking dolly can be made to be connected with shield machine main body relatively tightr, welding is more firm, avoids occurring surprisingly in the process of missing the stop;
3. the utility model is provided with two sliding reaction supports, two reaction supports are arranged on the two rails of shield machine afterbody, and overlap propelling cylinder with two respectively and be connected, provide propulsive thrust to the walking dolly of two on rear side of shield machine respectively, promote shield machine stably and advance;
4. external oil cylinder of the present utility model can with shield machine body portion from, run into can not entirety miss the stop time, split can be carried out and miss the stop, the requirement of missing the stop of any occasion can be adapted to;
5. the part such as walking dolly of the present utility model, rail and external oil cylinder all can be reused, and the cost that misses the stop is lower, and external oil cylinder inherently shield launching time indispensability, can't cost be increased.
Accompanying drawing explanation
Fig. 1 is the utility model plan structure schematic diagram;
Fig. 2 is the utility model side-looking structural representation;
Fig. 3 is the utility model walking dolly and bracket relation schematic diagram;
Fig. 4 is the utility model walking dolly structural representation;
Fig. 5, Fig. 6 are the utility model reaction support structural representations.
In figure: 1-shield machine, 2-shield tail, 3-bracket, 4,5-left and right traveling steel rail, 6-preposition walking dolly, 6-1-rearmounted walking dolly, 7-hydraulic power unit, 8-reaction support, 9-propelling cylinder, 10-cylinder support, 11-dolly erection support, 12-cutterhead, 13-shield tail and shield body junction.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further illustrated.As Fig. 1, the external pusher shield machine station-crossing device of one shown in 2, comprise running gear and propulsion plant, described running gear is by a left side, right traveling steel rail 4, 5, the preposition walking dolly 6 of two covers and the rearmounted walking dolly 6-1 of two covers form, traveling steel rail 4, 5 are laid on the shield machine walking axis on front side of shield machine bracket 3, left, right traveling steel rail 4, the spacing of 5 is 1.9 ~ 2.8m, left, right traveling steel rail 4, 5 all select 43 rail or 50 rail or 60 rail, and on a left side, right rail pre-sets reaction support 8 installing hole, aperture is 40mm, convenient installation reaction support 8.Four cover walking dollies correspondence after shield machine departs from bracket 3 is welded on bottom shield machine 1, and be slidably connected with left and right traveling steel rail 4,5, wherein the preposition walking dolly 6 of two covers is symmetrically welded at the position from cutterhead otch ring 0.8 ~ 1.2m on front side of shield machine 1, and the rearmounted walking dolly 6-1 of two covers is symmetrically welded at shield machine 1 from the hinged position toward cutterhead 0.89m; As shown in Figure 4, often pair of walking dolly is welded with shield machine 1 by arc dolly erection support 11, and the curved mounting surface of arc dolly erection support 11 is identical with the radian bottom shield machine 1, can fit tightly with shield machine shell.
As shown in Figure 1, Figure 2, shown in Fig. 5 and Fig. 6, described propulsion plant is arranged on the shield tail 2 of shield machine 1, be made up of hydraulic power unit 7, two reaction supports 8 and two propelling cylinders 9, two reaction supports 8 are separately fixed on the left and right traveling steel rail 4,5 of shield machine afterbody after shield machine departs from bracket, one end of two propelling cylinders 9 is fixed on the rearmounted walking dolly 6-1 of two covers of shield machine respectively by cylinder support 10, and the other end is fixed on corresponding reaction support 8.Described propelling cylinder 9 selects 10 ~ 200T hydraulic jack, and oil cylinder stroke is 250 ~ 3600mm, and two propelling cylinders are single control or coordinated signals.
Specific implementation method of the present utility model:
One, preparation
1, shield machine traveling steel rail and sliding reaction support is prefabricated: shield machine traveling steel rail adopts 50 rail, and on rail, pre-set reaction support installing hole, and aperture is 40mm, and pitch-row is uniform on rail according to oil cylinder stroke.Sliding reaction support is two pieces, on installing hole is set, aperture is 36mm, penetrates rail during use, and adopts steel latch and rail to fix, and steel pin diameter is 35mm.
2. shield machine walking dolly erection support is prefabricated: be connected with the quick of shield body for ease of shield machine walking dolly, needs the erection support of prefabricated walking dolly.The upper surface of dolly erection support 11 and the external cambered surface of shield are coincide, and should control as level when soffit is installed.
3. propelling cylinder and erection support is prefabricated: propelling cylinder 9 selects 100T hydraulic jack, and oil cylinder stroke is 1100mm.Propelling cylinder is arranged on when using and is positioned on hinged walking dolly.Prefabricated cylinder support on driving dolly, and oil cylinder installation site is as far as possible near rail rail level.Bearing and oil cylinder adopt pin joint.
Two, the external propulsion system of shield structure is installed
1. the installation of shield body walking dolly
(1) before shield body 1 departs from bracket 3, lay track along shield structure axis direction, spacing is 2.4m, when shield machine otch departs from bracket 3 about about 1.5m, respectively the erection support of the preposition walking dolly 6 of two covers is welded on the position from otch 1m, installs preposition walking dolly 6;
(2) when the hinged disengaging bracket of shield body 1, the bearing of the rearmounted walking dolly 6-1 of two covers to be welded on from shield tail 2 with shield body 1 hinged place toward the position of cutterhead 0.89m, to install rearmounted walking dolly 6-1.
2. external propulsion system is installed: in shield tail 2, place hydraulic power unit 7, install propelling cylinder 9 respectively at two rearmounted walking dolly 6-1 rears; Propelling cylinder 9 should possess the function of single control and interlock, is convenient to linear advancement and turning; Rail penetrates sliding reaction support 8, and is fixed by latch.
Three, shield structure misses the stop
After sliding reaction support 8 is fixing with latch, utilize external hydraulic drive oil cylinder 9 to extend and power (maximal tensility is 1100mm) is provided, after hydraulic drive oil cylinder 9 is elongated to maximum permissible value, hydraulic jack is regained, take out the latch of reaction support 8, mobile reaction support is fixed to next jack place; The speed that described oil cylinder advances is 5-10cm/min.Iterative cycles misses the stop step, and shield body is longitudinally reach on rail.
The arrival end laying two blocks of 20mm*2000mm*6000mm steel plates missed the stop, again the bracket that starts is prolonged the axis that shield body misses the stop to fix, when bracket is started in shield body 1 arrival, first the preposition walking dolly 6 of two covers at otch ring place is removed, shield body 1 slides onto when rearmounted walking dolly 6-1, external propelling cylinder 9 is removed, then removes the rearmounted walking dolly 6-1 of two covers.After walking dolly is all removed, external propelling cylinder 9 is positioned on pallet stringer, and pushing tow shield body 1 is in place.
Claims (4)
1. an external pusher shield machine station-crossing device, it is characterized in that: described station arrangement of crossing comprises running gear and propulsion plant, described running gear is made up of left and right traveling steel rail (4,5), the two preposition walking dolly of covers (6) and the two rearmounted walking dolly of covers (6-1), traveling steel rail (4,5) is laid on the shield machine walking axis of shield machine bracket (3) front side, four cover walking dollies shield machine depart from bracket (3) afterwards correspondence be welded on shield machine (1) bottom, and to be slidably connected with left and right traveling steel rail (4,5); Described propulsion plant is arranged on the shield tail (2) of shield machine (1), be made up of hydraulic power unit (7), two reaction supports (8) and two propelling cylinders (9), two reaction supports (8) are separately fixed on the left and right traveling steel rail (4,5) of shield machine afterbody after shield machine departs from bracket, one end of two propelling cylinders (9) is fixed on the two rearmounted walking dolly of covers (6-1) of shield machine respectively by cylinder support (10), and the other end is fixed on corresponding reaction support (8).
2. external pusher shield machine station-crossing device according to claim 1, it is characterized in that: the described two preposition walking dolly of covers (6) are symmetrically welded at the position of shield machine (1) front side from cutterhead otch ring 0.8 ~ 1.2m, and the two rearmounted walking dolly of covers (6-1) are symmetrically welded at shield machine (1) from shield tail and shield body hinged place toward the position of cutterhead 0.89m; Often pair of walking dolly is welded with shield machine (1) by arc dolly erection support (11), and the curved mounting surface of arc dolly erection support (11) is identical with the radian of shield machine (1) bottom, can fit tightly with shield machine shell.
3. external pusher shield machine station-crossing device according to claim 1 and 2, it is characterized in that: the spacing of described left and right traveling steel rail (4,5) is 1.9 ~ 2.8m, left and right traveling steel rail (4,5) selects 43 rail or 50 rail or 60 rail, and on left and right rail, pre-setting reaction support (8) installing hole, aperture is 40mm.
4. external pusher shield machine station-crossing device according to claim 1 and 2, it is characterized in that: described propelling cylinder (9) selects 10 ~ 200T hydraulic jack, oil cylinder stroke is 250 ~ 3600mm, and two propelling cylinders are single control or coordinated signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520657172.6U CN204827458U (en) | 2015-08-28 | 2015-08-28 | External impulse type shield structure machine device that misses stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520657172.6U CN204827458U (en) | 2015-08-28 | 2015-08-28 | External impulse type shield structure machine device that misses stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827458U true CN204827458U (en) | 2015-12-02 |
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ID=54685069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520657172.6U Expired - Fee Related CN204827458U (en) | 2015-08-28 | 2015-08-28 | External impulse type shield structure machine device that misses stop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841986A (en) * | 2016-03-28 | 2016-08-10 | 中南大学 | Initial counterforce transmission apparatus for indoor shield model test and use method thereof |
| CN107060781A (en) * | 2017-01-10 | 2017-08-18 | 济南中铁重工轨道装备有限公司 | Shield body vibration hydraulic system |
-
2015
- 2015-08-28 CN CN201520657172.6U patent/CN204827458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841986A (en) * | 2016-03-28 | 2016-08-10 | 中南大学 | Initial counterforce transmission apparatus for indoor shield model test and use method thereof |
| CN105841986B (en) * | 2016-03-28 | 2018-02-23 | 中南大学 | Counter-force transfer device and its application method are originated for indoor shield model test |
| CN107060781A (en) * | 2017-01-10 | 2017-08-18 | 济南中铁重工轨道装备有限公司 | Shield body vibration hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 |