CN106381875B - A kind of deep basal pit applies the prestressed regulation device of bracing members - Google Patents
A kind of deep basal pit applies the prestressed regulation device of bracing members Download PDFInfo
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- CN106381875B CN106381875B CN201611031806.2A CN201611031806A CN106381875B CN 106381875 B CN106381875 B CN 106381875B CN 201611031806 A CN201611031806 A CN 201611031806A CN 106381875 B CN106381875 B CN 106381875B
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- bevel gear
- stent
- connecting rod
- drift
- bracing members
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention relates to a kind of deep basal pit to apply the prestressed regulation device of bracing members, including running part and support section；The running part includes sequentially connected handwheel, connecting rod, bottom bevel gear I, drive bevel gear I, drive link, drive bevel gear II, bottom bevel gear II, screw rod, lifting nut and metal sleeve；The support section is coated on the metal shell outside running part, and the stent I and stent II being hinged on respectively by articulation piece I and articulation piece II on metal shell.Operating method of the present invention is simple, strong applicability, is widely portable to the steel support structure of different model, and the present apparatus repeats utilization.The regulation device of the present invention can effectively prevent lower part drift from being moved down with top drift, ensure the stability of work progress.And the present apparatus can realize the precise fine-adjustment of relative position between drift and telescopic rod, to find best joint, so that pressurization is more effective, the pressurized operation efficiency of bracing members movable end is significantly improved.
Description
Technical field
The invention belongs to deep foundation pit support field, and in particular to deep basal pit steel shotcrete support prestress application it is new
Adjusting apparatus.
Background technology
In recent years, as the fast development of the major urban skyscraper in China, high-rise building and municipal works, underground are empty
Between exploitation scale increasingly increase, corresponding deep foundation pit engineering is also more and more, therefore, the technique of design and construction of deep basal pit
Become hot technology problem.At the same time, as requirement of the engineering to deep basal pit is higher and higher, cause in work progress constantly
There are various problems in ground.Conventional bracing members in deep-foundation pit engineering are as shown in Figure 1, bracing members include fixing end, movable end and steel
Pipe, active termination are similar to " drawer " structure, and accommodating 27 two parts of steel pipe by movable end and movable end forms；Movable end by
Active end plate 24, telescopic rod 17, the floor I25 that puts more energy into, the part assembly such as floor II26 of putting more energy into are welded into.The bracing members are to deep basal pit
Play the role of cross-brace, when use is open-top receiving steel pipe 27 with jack, exposes two telescopic rods 17, is applying prestressing force
When, rectangle cushion block 23 and lower part drift 31 need to be installed additional in the telescopic rod guide groove between two telescopic rods 17 first, finally
Wedge prevents telescopic rod 17 is retracted to from accommodating in steel pipe 27 into top drift 30.Since traditional operation is not to lower part drift 31
Limiting device is added, is existed in the construction process when impacting top drift 30 with sledgehammer, due to stress, it may occur that lower part
Drift 31 and top drift 30 downwardly together displacement the problem of, be easy to cause the unstability of work progress；And it can not realize
Drift (including top drift 30 and lower part drift 31) fine setting of relative position between telescopic rod 17, it is difficult to will both opposite positions
Put adjusting to arrive most preferably, thus be difficult to obtain optimal pumping efficiency.Chinese patent CN204803896U discloses a kind of adjustment dress
Put, by setting three elliptical apertures from top to bottom on lower part drift 31, and utilize the limiting lock and adjustment spiral shell for being inserted into elliptical aperture
Bolt is fixed, so as to prevent lower part drift to bottom offset, and realizes lower part drift position by being inserted into three different elliptical apertures
The adjusting put.But there are problems with for the technology：First, need to carry out individually designed manufacture to lower part drift, without pervasive
Property；2nd, the Precision trimming of relative position between drift and telescopic rod cannot be fully achieved, is limited to the setting position of elliptical aperture；
3rd, depend merely on a bolt and only carry out side and fix, stability needs to be investigated.
The content of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of deep basal pit applies the prestressed regulation device of bracing members, it is logical
It is good with property and universality, and can realize the Precision trimming of relative position between drift and telescopic rod.
A kind of deep basal pit applies the prestressed regulation device of bracing members, including running part and support section；
The running part includes handwheel, connecting rod, bottom bevel gear I, drive bevel gear I, drive link, drive bevel gear
II, bottom bevel gear II, screw rod, lifting nut and metal sleeve, the both ends of the connecting rod connect handwheel and bottom cone tooth respectively
Take turns I, bottom bevel gear I engages with drive bevel gear I, and bottom bevel gear II is engaged with drive bevel gear II, drive bevel gear I and
Drive bevel gear II is separately fixed at the both ends of drive link, and bottom bevel gear II is fixedly connected with screw rod, screw rod and lifting nut spiral shell
Line connects, and metal sleeve is fixed in lifting nut periphery；
The support section is coated on the metal shell outside running part, and by articulation piece I and is hinged respectively
Part II is hinged on stent I and stent II on metal shell, and the stent I and stent II are symmetrical arranged；Stent I is close to articulation piece
One end of I sets the support plate I vertical with stent I, and the other end of stent I is threaded, and connects with oval supporting block I screw threads
Connect；Stent II sets the support plate II vertical with stent II close to one end of articulation piece II, and the other end of stent II is threaded,
And it is threadedly coupled with oval supporting block II；
Axially disposed at least one sliding slot on the barrel of the metal sleeve, the pin being fixed on metal shell can edge
Sliding slot slides.
Further, the connecting rod includes connecting rod I and connecting rod II, and connecting rod I and connecting rod II are detachably connected, using two sections
It is more convenient for installing.
Further, handwheel can be dismantled, in order to the installation of whole device.
Further, the screw rod uses self-locking thread pair with lifting nut.
Further, the bottom bevel gear I and bottom bevel gear II is respectively arranged below thrust bearing I and thrust shaft
II is held, is respectively used in the case where ensureing bottom bevel gear I and bottom bevel gear II normal rotations, limits the axial fortune of the two
It is dynamic.
The present invention utilizes Bevel Gear Drive principle, the two conical gears composition core component rotated coaxially, wherein one
A gear forms a local drive line with conical gear of the upper end with handwheel；Another gear and screw rod, nut and circle
" class screw jack " drive line of bevel gear set into a part.Whole drive line, spiral shell is driven by the rotation of handwheel
Bar rotates, and the metal sleeve on lifting nut is promoted, so that lower part drift rises or falls.
Compared with the prior art, the present invention combines theory of mechanics and the drift during the prestress application of bracing members is supported
It is adjusted, operating method is simple, strong applicability, is widely portable to the steel support structure of different model, and the present apparatus can weigh
It is multiple to utilize.The regulation device of the present invention can effectively prevent lower part drift from being moved down with top drift, ensure the stabilization of work progress
Property.And the present apparatus can realize the precise fine-adjustment of relative position between drift and telescopic rod, to find best joint, so that
Pressurization is more effective, significantly improves the pressurized operation efficiency of bracing members movable end.
Brief description of the drawings
The structure diagram of conventional bracing members in Fig. 1 deep-foundation pit engineerings；
The structure diagram of Fig. 2 regulation devices of the present invention (wherein 17- telescopic rods are the structure in bracing members)；
Fig. 3 is the top view of Fig. 2；
The structure diagram of Fig. 4 regulation device running parts of the present invention；
Fig. 5 is the top view of Fig. 4；
The use state diagram of Fig. 6 regulation devices of the present invention (for convenience of description, do not show by the structure such as 19- stents II
Go out)；
Fig. 7 is the top view of Fig. 6；
The structure diagram of Fig. 8 regulation device metal sleeves of the present invention；
In Fig. 1-8：1- handwheels；2- connecting rods I；3- connecting rods II；4- bottoms bevel gear I；5- drive bevel gears I；6- drive links；
7- drive bevel gears II；8- metal sleeves；9- lifting nuts；10- screw rods；11- bottoms bevel gear II；12- thrust bearings I；13-
Thrust bearing II；14- ellipse supporting blocks I；15- stents I；16- articulation pieces I；17- telescopic rods；18- ellipse supporting blocks II；19- branch
Frame II；20- articulation pieces II；21- metal shells；22- rectangle cushion block limit sticks；23- rectangle cushion blocks；The active end plates of 24-；25- adds
Strength floor I；26- puts more energy into floor II；27- accommodates steel pipe；28- puts more energy into floor III；29- flanges；30- tops drift；31- lower parts
Drift；32- support plates I；33- support plates II；34- sliding slots, 35- pins.
Embodiment
The present invention is described in further details with reference to specific embodiment and attached drawing.
Deep basal pit as shown in figures 1-8 applies the prestressed regulation device of bracing members, including running part and support section；
As shown in figure 4, running part includes handwheel 1, connecting rod, bottom bevel gear I4, drive bevel gear I5, drive link 6, biography
Dynamic bevel gear II7, bottom bevel gear II11, screw rod 10, lifting nut 9 and metal sleeve 8.Connecting rod is by connecting rod I2 and connecting rod II3
Detachably connected to form, the both ends of connecting rod connect handwheel 1 and bottom bevel gear I4, bottom bevel gear I4 and transmission cone tooth respectively
I5 engagements are taken turns, bottom bevel gear II11 is engaged with drive bevel gear II7, and drive bevel gear I5 and drive bevel gear II7 is solid respectively
The both ends of drive link 6 are scheduled on, bottom bevel gear II11 is fixedly connected with screw rod 10, and screw rod 10 uses self-locking thread with lifting nut 9
Deputy thread connects, and metal sleeve 8 is fixed in 9 periphery of lifting nut.Distinguish the lower section of bottom bevel gear I4 and bottom bevel gear II11
Thrust bearing I12 and thrust bearing II13 is set, is respectively used to the axial direction of limitation bottom bevel gear I4 and bottom bevel gear II11
Movement.
As shown in Fig. 2, support section is coated on the metal shell 21 outside running part, and pass through articulation piece respectively
I16 and articulation piece II20 is hinged on stent I15 and stent II19, II19 pairs of the stent I15 and stent on metal shell 21
Claim to set, stent I15 sets the support plate I32 vertical with stent I15, the other end of stent I15 close to one end of articulation piece I16
It is threaded, and is threadedly coupled with oval supporting block I14；Stent II19 is set and stent II19 close to one end of articulation piece II20
Vertical support plate II33, the other end of stent II19 are threaded, and are threadedly coupled with oval supporting block II18.
As shown in Fig. 2,8, axially disposed two sliding slots 34, are fixed on metal shell 21 on the barrel of metal sleeve 8
Pin 35 can be slided along sliding slot 34.Pin 35 is used for the rotation for limiting metal sleeve 8, it is slided up and down, so that group
Into the rotation preventing mechanism of lifting nut 9.
Above-mentioned regulation device, need to be after lower part drift 31 is installed, installation top when applied to bracing members shown in Fig. 1
Before drift 30, this regulation device is fixed on the telescopic rod 17 of bracing members.Stent I15 and stent II19 are separately mounted to
On two telescopic rods 17, two telescopic rods 17 are respectively positioned at support plate I32 and oval supporting block I14, support plate II33 and ellipse
Between supporting block II18, as shown in Figure 2,3.The position of adjusting apparatus makes 8 face lower part drift 31 of metal sleeve, as shown in fig. 6,
Since oval supporting block I14 and ellipse supporting block II18 are threadedly coupled with stent I15 and stent II19 respectively, can rotate
Ellipse supporting block I14 and oval supporting block II18 are adjusted, two telescopic rods 17 is stably clamped.
After regulation device installs, handwheel 1 is rotated, drives bottom bevel gear I4, drive bevel gear I5, transmission cone successively
Gear II7, bottom bevel gear II11 are rotated, and move up and down lifting nut 9, so as to drive the metal sleeve 8 being fixed in the above
It is mobile, it is raised or lowered to suitable position.Due to the self-locking of screw thread, metal sleeve 8 at this time is equivalent to one
Limiting device, can achieve the purpose that to control 31 position of lower part drift.So when impacting top drift 30, lower part drift 31 is just
It will not be subjected to displacement downwardly together with top drift 30.The device make use of the self-locking of screw thread, without brake apparatus, i.e.,
It may be implemented in the effect for preventing lower part drift 31 from being moved downwardly together with top drift 30 during impact top drift 30.
The present apparatus uses Bevel Gear Transmission, due to pitch (being defaulted as helical pitch) general very little of screw thread, i.e. screw thread rotation one
The distance of Zhou Qianjin is very short, therefore can realize drift (including top drift 30 and lower part drift 31) phase between telescopic rod 17
Fine setting to position.Screw rod 10 drives metal sleeve 8 to move up and down, and the lower part drift 31 lifted by metal sleeve 8 also can be upper and lower
Mobile, convenient construction, improves work efficiency.
Claims (3)
1. a kind of deep basal pit applies the prestressed regulation device of bracing members, it is characterised in that including running part and support section；
The running part includes handwheel (1), connecting rod, bottom bevel gear I (4), drive bevel gear I (5), drive link (6), transmission cone tooth
Take turns II (7), bottom bevel gear II (11), screw rod (10), lifting nut (9) and metal sleeve (8), the both ends difference of the connecting rod
Connection handwheel (1) and bottom bevel gear I (4), bottom bevel gear I (4) are engaged with drive bevel gear I (5), bottom bevel gear II
(11) engaged with drive bevel gear II (7), drive bevel gear I (5) and drive bevel gear II (7) is separately fixed at drive link (6)
Both ends, bottom bevel gear II (11) is fixedly connected with screw rod (10), and screw rod (10) is threadedly coupled with lifting nut (9), lifts spiral shell
Metal sleeve (8) is fixed in female (9) periphery；The support section is coated on the metal shell (21) outside running part, and
The stent I (15) and stent II (19) being hinged on respectively by articulation piece I (16) and articulation piece II (20) on metal shell (21),
The stent I (15) and stent II (19) are symmetrical arranged；Stent I (15) is set and stent I close to one end of articulation piece I (16)
(15) vertical support plate I (32), the other end of stent I (15) are threaded, and are threadedly coupled with oval supporting block I (14)；
Stent II (19) sets the support plate II (33), stent II (19) vertical with stent II (19) close to one end of articulation piece II (20)
The other end be threaded, and be threadedly coupled with oval supporting block II (18)；Set vertically on the barrel of the metal sleeve (8)
At least one sliding slot (34) is put, the pin (35) being fixed on metal shell (21) can be slided along sliding slot (34), the connecting rod bag
Connecting rod I (2) and connecting rod II (3) are included, connecting rod I (2) and connecting rod II (3) are detachably connected, and the handwheel (1) can dismantle.
2. deep basal pit according to claim 1 applies the prestressed regulation device of bracing members, it is characterised in that the screw rod
(10) self-locking thread pair is used with lifting nut (9).
3. deep basal pit according to claim 1 applies the prestressed regulation device of bracing members, it is characterised in that the bottom
Bevel gear I's (4) and bottom bevel gear II (11) is respectively arranged below thrust bearing I (12) and thrust bearing II (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611031806.2A CN106381875B (en) | 2016-11-22 | 2016-11-22 | A kind of deep basal pit applies the prestressed regulation device of bracing members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611031806.2A CN106381875B (en) | 2016-11-22 | 2016-11-22 | A kind of deep basal pit applies the prestressed regulation device of bracing members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106381875A CN106381875A (en) | 2017-02-08 |
| CN106381875B true CN106381875B (en) | 2018-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611031806.2A Active CN106381875B (en) | 2016-11-22 | 2016-11-22 | A kind of deep basal pit applies the prestressed regulation device of bracing members |
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| CN (1) | CN106381875B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801421A (en) * | 2017-02-10 | 2017-06-06 | 成都聚立汇信科技有限公司 | Self-locking support movable end |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4376599A (en) * | 1980-02-09 | 1983-03-15 | Josef Krings | Ditch shoring unit |
| CN2359331Y (en) * | 1999-02-03 | 2000-01-19 | 上海高仕新技术工程咨询合作公司 | Steel repported added prestressed device |
| CN102852149A (en) * | 2012-09-14 | 2013-01-02 | 同济大学 | Multi-fulcrum and axial-force-adjustable type steel support |
| CN204803896U (en) * | 2015-07-08 | 2015-11-25 | 中建筑港集团有限公司 | Adjusting device that deep basal pit steel shotcrete prestressing force was applyed |
| CN105908753A (en) * | 2016-05-03 | 2016-08-31 | 东通岩土科技（杭州）有限公司 | Internal prestress axial force device connection structure for building foundation pit steel pipe support |
| CN206256450U (en) * | 2016-11-22 | 2017-06-16 | 青岛理工大学 | A kind of deep basal pit applies the prestressed regulation device of bracing members |
-
2016
- 2016-11-22 CN CN201611031806.2A patent/CN106381875B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4376599A (en) * | 1980-02-09 | 1983-03-15 | Josef Krings | Ditch shoring unit |
| CN2359331Y (en) * | 1999-02-03 | 2000-01-19 | 上海高仕新技术工程咨询合作公司 | Steel repported added prestressed device |
| CN102852149A (en) * | 2012-09-14 | 2013-01-02 | 同济大学 | Multi-fulcrum and axial-force-adjustable type steel support |
| CN204803896U (en) * | 2015-07-08 | 2015-11-25 | 中建筑港集团有限公司 | Adjusting device that deep basal pit steel shotcrete prestressing force was applyed |
| CN105908753A (en) * | 2016-05-03 | 2016-08-31 | 东通岩土科技（杭州）有限公司 | Internal prestress axial force device connection structure for building foundation pit steel pipe support |
| CN206256450U (en) * | 2016-11-22 | 2017-06-16 | 青岛理工大学 | A kind of deep basal pit applies the prestressed regulation device of bracing members |
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| Publication number | Publication date |
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| CN106381875A (en) | 2017-02-08 |
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