CN203034829U - Hydraulic following support device - Google Patents
Hydraulic following support device Download PDFInfo
- Publication number
- CN203034829U CN203034829U CN 201320054314 CN201320054314U CN203034829U CN 203034829 U CN203034829 U CN 203034829U CN 201320054314 CN201320054314 CN 201320054314 CN 201320054314 U CN201320054314 U CN 201320054314U CN 203034829 U CN203034829 U CN 203034829U
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- CN
- China
- Prior art keywords
- oil
- nut
- support device
- bracing
- strutting arrangement
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- Expired - Lifetime
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Abstract
The utility model relates to the field of building jacking engineering, in particular to a hydraulic following support device. The hydraulic following support device comprises a motor, a pinion, a nut and a screw. The lower end of the nut is fixedly connected with a rack wheel, wherein the center of a circle of the rack wheel and the center of a circle of the pinion are coaxial. The pinion is meshed with the rack wheel and the rack wheel is in screw-thread fit with the screw. The hydraulic following support device is characterized in that an oil cylinder is additionally arranged in the screw; the oil cylinder is divided into two mutually independent spaces of an upper oil cavity and a lower oil cavity by a piston; two openings are formed in an oil pipeline, wherein one opening is communicated with the upper oil cavity and the other opening is communicated with the lower oil cavity; and a piston rod is fixedly connected with the nut in a coaxial mode. The hydraulic following support device has the advantages of being capable of eliminating a pressing and abutting gap between cushion blocks, keeping gapless synchronization between the hydraulic following support device and a jacking oil cylinder, enabling the cushion blocks to be replaced conveniently and being high in safety.
Description
Technical field
The utility model relates to building jacking engineering field, is specifically related to a kind of hydraulic follow-up bracing or strutting arrangement.
Background technology
The mechanical hunting gear of prior art is to rise to drive the nut spiral by the motor driven wheel, and power is very little, and when servo-actuated jacking, mechanical screws just is pressed on the cushion block gently.Therefore in the actual engineering construction process, cushion block can not be done very accurately, exists and presses the gap, presses the gap and can reach several millimeters and do not wait to tens millimeters, and may fill up several cushion blocks below the hunting gear, adds up, and presses the gap and differs just bigger.Because each hunting gear presses the gap and do not wait, when jacking cylinder was transferred to bearing capacity on the mechanical hunting gear, each hunting gear was difficult to all carry.
The utility model content
The purpose of this utility model is, provides a kind of and can overcome the above-mentioned defective of prior art, eliminates the gap of pressing between cushion block, and changes convenient, the safe hydraulic follow-up bracing or strutting arrangement of cushion block.
The technical solution of the utility model is specific as follows: a kind of hydraulic follow-up bracing or strutting arrangement, comprise oil motor, pinion, nut, screw rod, the lower end of nut is fixedly connected with the coaxial gear wheel in a center of circle, pinion and gear wheel engagement, and gear wheel cooperates with screw flight; Set up an oil cylinder in the screw rod, oil cylinder is separated into upper oil cavitie, two relatively independent spaces of lower oil cavitie by piston; Oil line pipe has two openings, and opening and upper oil cavitie connect, another opening and lower oil cavitie perforation; Piston rod is fixedlyed connected with nut is coaxial.
In the practical application, the hydraulic follow-up bracing or strutting arrangement can be just use, namely nut is last, screw rod is down; Also can turn use around, namely nut is following, and screw rod is last.The description of leading portion technical scheme all be with the hydraulic follow-up bracing or strutting arrangement just place and to be as the criterion, the upper-lower position relation between each building block is described.
In screw rod, set up an oil cylinder, utilize the low pressure oil sources to drive oil motor, make upper and lower oil pocket form the oil pressure difference with drive nut.Its know-why is: by valve control oil-feed direction, during jacking, need screw rod to screw out nut, at this moment just allow the lower oil cavitie oil-feed, the upper oil cavitie oil return, be 2.5Mpa with the low pressure oil sources, high 360mm, the hydraulic follow-up bracing or strutting arrangement of external diameter 275mm is example, can make the hydraulic follow-up bracing or strutting arrangement produce nearly 10 tons pressure and be pressed on the cushion block, so substantially, eliminated the gap of pressing of cushion block, can keep gapless synchronous between hydraulic follow-up bracing or strutting arrangement and the jacking cylinder; When needs are changed cushion block, as long as with the commutation of oil-feed direction, allow the upper oil cavitie oil-feed, the lower oil cavitie oil return just can make screw rod cycle nut, and follow-up supporting device is packed up.Be 2.5Mpa with the low pressure oil sources equally, high 360mm, the hydraulic follow-up bracing or strutting arrangement of external diameter 275mm is example, because the lifting force of oil cylinder is arranged, this hydraulic follow-up bracing or strutting arrangement can be mentioned the cushion block of three or four tons of weights completely, and the replacing cushion block can be carried out in bottom position, has improved efficiency of construction.
In by oil pressure difference drive nut, the oil motor driving pinion, and pinion is to be meshed with the gear wheel of nut lower end, gear wheel cooperates with screw flight again, thereby gear wheel can be followed, and the nut spiral rises or decline.Just in case the fortuitous event of oil pipe explosion takes place in the work progress, and gear wheel will block, prevent that nut from gliding suddenly because oil pressure suddenly disappears, and guaranteed safety of construction.
Preferably, the lower surface of screw rod is connected with a top, and the upper surface of top is cambered surface, and the lower surface of top is the plane.The top can couple together by bolt with screw rod.During the engineering jack-up construction, the jacking supporting surface of building or structure (for example bridge) may not be abswolute level, pushing up first end face designs for cambered surface, can make the contact surface angle of hydraulic follow-up bracing or strutting arrangement and jacking supporting surface do among a small circle adjustment, such as ± 3 ~ 5 °, under this situation, the hydraulic follow-up bracing or strutting arrangement is to stand upside down to place to use.
Preferably, the following top cap that also is connected with of described top, the top cap is the round pie steel plate.The effect of top cap is the lifting surface area that increases the top, comes down to increase the lifting surface area of hydraulic follow-up bracing or strutting arrangement.
Advantage of the present utility model is: can eliminate the gap of pressing between cushion block, keep gapless synchronous between hydraulic follow-up bracing or strutting arrangement and the jacking cylinder; The replacing cushion block is convenient; Safe.
Description of drawings
Fig. 1 is the structural representation of embodiment;
Fig. 2 is the construction application schematic diagram of embodiment.
Description of reference numerals: 1-beam body, 2-cushion cap, 3-jack, 4-hydraulic follow-up bracing or strutting arrangement, 5-furred ceiling steel plate, 6-cushion block, 41-oil motor, 42-pinion, the 43-gear wheel, 44-nut, 45-screw rod, the 451-upper oil cavitie, 452-lower oil cavitie, 461-piston, the 462-piston rod, 47-oil line pipe, 471-one way valve, the 472-reversal valve, 48-top, 49-top cap.
The specific embodiment
Be described in further detail below in conjunction with Figure of description and the utility model of embodiment.
Embodiment
A kind of hydraulic follow-up bracing or strutting arrangement 4 comprises oil motor 41, pinion 42, nut 44, screw rod 45, and the lower end of nut 44 is fixedly connected with the coaxial gear wheel in a center of circle 43, pinion 42 and gear wheel 43 engagements, gear wheel 43 and screw rod 45 threaded engagement; Set up an oil cylinder in the screw rod 45, oil cylinder is separated into upper oil cavitie 451,452 two relatively independent spaces of lower oil cavitie by piston 461; Oil line pipe 47 has two openings, and opening and upper oil cavitie 451 connect, another opening and lower oil cavitie 452 perforations; Piston rod 462 and nut 44 coaxial fixedlying connected.
The lower surface of screw rod 45 is connected with a top 48, and the upper surface of top 48 is cambered surface, and the lower surface of top 48 is the plane.Top 48 is connected by bolt with screw rod 45.The following top cap 49 that also is connected with of top 48, top cap 49 is the round pie steel plate.
Be to be as the criterion with the upright placement of hydraulic follow-up bracing or strutting arrangement in the present embodiment, the upper-lower position relation between each building block is described.
Hydraulic follow-up bracing or strutting arrangement 4 is to control the oil-feed direction by 4 one way valves 471 and 1 reversal valve 472, during jacking, needs screw rod 45 to screw out nuts 44, at this moment just allows lower oil cavitie 452 oil-feeds, upper oil cavitie 451 oil returns; When needs are changed cushion block, as long as with the commutation of oil-feed direction, allow upper oil cavitie 451 oil-feeds, lower oil cavitie 452 oil returns just can make screw rod 45 cycle nuts 44, and hydraulic follow-up bracing or strutting arrangement 4 is packed up.
The hydraulic follow-up bracing or strutting arrangement is the chief component of servo-actuated support system.Construction application in the bridge jacking engineering, referring to accompanying drawing 2, is fixed on the beam body jacking face with furred ceiling steel plate 5 and the bolt upper end with hydraulic follow-up bracing or strutting arrangement 4, is lined with several cushion blocks 6 on the cushion cap 2, and cushion block 6 pads are below follow-up supporting device 4.The effect of servo-actuated support system is to guarantee the safety of hydraulic lifting, and during jacking being provides top lift by jack 3.
The hydraulic follow-up bracing or strutting arrangement that the utility model is protected is not limited to the above embodiments.Those skilled in the art make the change of unsubstantiality, all fall into protection domain of the present utility model.
Claims (3)
1. hydraulic follow-up bracing or strutting arrangement, comprise oil motor, pinion, nut, screw rod, the lower end of nut is fixedly connected with the coaxial gear wheel in a center of circle, pinion and gear wheel engagement, gear wheel cooperates with screw flight, it is characterized in that: set up an oil cylinder in the screw rod, oil cylinder is separated into upper oil cavitie, two relatively independent spaces of lower oil cavitie by piston; Oil line pipe has two openings, and opening and upper oil cavitie connect, another opening and lower oil cavitie perforation; Piston rod is fixedlyed connected with nut is coaxial.
2. hydraulic follow-up bracing or strutting arrangement according to claim 1, it is characterized in that: the lower surface of screw rod is connected with a top, and the upper surface of top is cambered surface, and the lower surface of top is the plane.
3. hydraulic follow-up bracing or strutting arrangement according to claim 2, it is characterized in that: the following top cap that also is connected with of described top, the top cap is the round pie steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054314 CN203034829U (en) | 2013-01-31 | 2013-01-31 | Hydraulic following support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054314 CN203034829U (en) | 2013-01-31 | 2013-01-31 | Hydraulic following support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203034829U true CN203034829U (en) | 2013-07-03 |
Family
ID=48686963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054314 Expired - Lifetime CN203034829U (en) | 2013-01-31 | 2013-01-31 | Hydraulic following support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203034829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058092A (en) * | 2013-01-31 | 2013-04-24 | 上海同罡建筑工程有限公司 | Hydraulic follow-up supporting device |
| US9574613B1 (en) * | 2014-06-23 | 2017-02-21 | Stephen A. Youngers | Machine leveling pedestal |
-
2013
- 2013-01-31 CN CN 201320054314 patent/CN203034829U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058092A (en) * | 2013-01-31 | 2013-04-24 | 上海同罡建筑工程有限公司 | Hydraulic follow-up supporting device |
| CN103058092B (en) * | 2013-01-31 | 2015-09-30 | 上海同罡建筑工程有限公司 | Hydraulic follow-up bracing or strutting arrangement |
| US9574613B1 (en) * | 2014-06-23 | 2017-02-21 | Stephen A. Youngers | Machine leveling pedestal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |