CN203049460U

CN203049460U - Load-bearable liftable landing equipment

Info

Publication number: CN203049460U
Application number: CN 201220661512
Authority: CN
Inventors: 杨荣泉; 贾志坚; 张光桥
Original assignee: Shandong Luqiao Group Co Ltd
Current assignee: Shandong Luqiao Group Co Ltd
Priority date: 2012-12-05
Filing date: 2012-12-05
Publication date: 2013-07-10
Anticipated expiration: 2022-12-05

Abstract

The utility model discloses a set of load-bearable liftable landing equipment, which comprises the following components: an outer cylinder; a lifting device which is equipped in the outer cylinder; an inner cylinder which has a bottom that is supported by the lifting device, wherein the inner cylinder is guided to the outer cylinder and is furthermore provided with an outer thread; and a fastening nut which has an end face that is supported on the upper end face of the outer cylinder, and the fastening nut is matched with the outer thread of the outer cylinder. The load-bearable liftable landing equipment has the following advantages: high convenience in adjustment, high stability and capability of lifting in a load-bearing condition.

Description

The lifting of can bearing a heavy burden falls to setting up fully

Technical field

The utility model relate to a kind of fall to setting up be equipped with, belong to the bridge construction auxiliary equipment.

Background technology

Current, the sand tube is the falling to setting up and be equipped with of the most frequent employing of Bridges in Our Country cast-in-situ box girder construction.Its principle is: the sand tube is made up of urceolus and inner core, inner core with steel pipe processing with at end-state bearing box beam load, urceolus then in the sand of dress certain altitude, construction finishes, the sand that has certain flowability in the urceolus is emitted, highly reduce and just can realize holder function.

Though it is easy to process that the sand tube has, the bearing capacity advantages of higher, but this equipment also has certain defective, though that height is realized according to sand using amount is adjustable, simultaneously since the gap between sand with and the mobile accuracy controlling that causes being difficult to accomplish height, simultaneously, can not realize that more holding lotus hoists, institute's back-up sand has decrement, is out of shape bigger, stability is bad, and it is more loaded down with trivial details to operate.

Summary of the invention

For this reason, the utility model is adjusted poor performance and stable defect of bad at present sand tube, provide a kind of convenient adjustment, and the born a heavy burden lifting of good stability falls to setting up fully.

The technical solution adopted in the utility model is:

A kind of lifting of bearing a heavy burden falls to setting up fully, comprising:

Urceolus;

Lifting device is arranged in the described urceolus;

Inner core, the bottom is held by described lifting device, and is directed at described urceolus, and has external screw thread; And

Clamp nut, end face are supported in the upper surface of described urceolus and cooperate with the external screw thread of described urceolus.

Based on said structure as can be known, fall to setting up to be equipped with at first according to the lifting of bearing a heavy burden of the present utility model and drive inner core by lifting device and realize bearing a heavy burden and hoist, obvious is, clamp nut can rise and breaks away from and the contacting of urceolus upper surface along with inner core; After jacking puts in place, drive described clamp nut and transfer and put in place and be supported in the urceolus upper surface, this moment, lifting device can reset, thus load turns to clamp nut in the quiet support of urceolus upper surface, thereby, guaranteed the stability that supports.

The above-mentioned lifting of bearing a heavy burden falls to setting up fully, and described clamp nut comprises screwed hole section and unthreaded hole section, and wherein unthreaded hole end internal diameter to guarantee reliable location, improves stability greater than urceolus upper end external diameter.

The above-mentioned lifting of bearing a heavy burden falls to setting up and is equipped with, and described clamp nut is supported on the upper surface of urceolus by thrust bearing, reduces friction, guarantees the accuracy adjusted and the reliability of adjustment.

The above-mentioned lifting of bearing a heavy burden falls to setting up fully, and described lifting device is jack, convenient control lift height.

Consider more detailed description by reference to the accompanying drawings, above-mentioned and other purpose of the present utility model and advantage will be more apparent.

Description of drawings

Fig. 1 is a kind of structural representation of inner core.

Fig. 2 is a kind of structural representation of clamp nut.

Fig. 3 is a kind of outer tube structure schematic diagram of built-in jack.

Fig. 4 is for falling to setting up the structural representation that is equipped with according to the lifting of bearing a heavy burden of the present utility model.

Among the figure: 1, inner core, 2, clamp nut, 3, urceolus, 4, jack.

The specific embodiment

With reference to explanation accompanying drawing 4, its overall structure is relatively simple, but the inventor thinks that when the technical problem that faces in the face of the sand tube, those skilled in the art and absence of motivation go to seek structure as shown in Figure 4, and then change by rigid support.

In structure as shown in Figure 4, a kind of lifting of bearing a heavy burden falls to setting up fully, and its basic structure comprises:

Urceolus 3;

Lifting device is arranged in the described urceolus;

Inner core 1, the bottom is held by described lifting device, and is directed at described urceolus 3, and has external screw thread; And

Clamp nut 2, end face are supported in the upper surface of described urceolus and cooperate with the external screw thread of described urceolus.

At first about urceolus 3, owing to driving described lifting device, obviously, it is not proper structure as the bottom sealing, and therefore, those skilled in the art is to be understood that, herein, urceolus should be understood to support, but it has the part that cooperates with described inner core 1, with the described inner core 1 of stable guiding, and preventing the effect of inner core 1 unstability, the bottom can arrange bigger space, with stable support, be used for the setting of miscellaneous equipment simultaneously, as described lifting device.

And for described urceolus, integral body can show as screw rod, and the adjustment space of coupling lifting, the thread segment of coupling respective length, its integral body can show as whole screw rod, perhaps has the structure of thread segment and polished rod section.

Which kind of structure no matter, its upper end can be configured to the support portion, and the modular construction that coupling supports arranges.

Should be appreciated that existence and the aforesaid integral body of support portion, as be not contradiction of screw rod that as plain bolt, it contains bolt head and threaded shank.

For clamp nut 2, and supporting screw thread, load should be considered and arrange that those skilled in the art understands accordingly easily.

For simplified structure, reduce himself weight, described inner core 1 also can show as the drum of letter, as long as it satisfies needed rigidity requirement.

Thereby, when needs are accurately adjusted, lifting device drives inner core 1, and to drive described clamp nut 2 up, after arriving predetermined altitude, transfer clamp nut to the upper surface of urceolus 3, continue to adjust clamp nut 2 to the pretightning forces that produce coupling, lifting device just can be transferred, the load commentaries on classics by 2 of clamp nuts on the upper surface of urceolus 3.

When falling frame, lifting device is up, jacking phase inner core 1, and clamp nut 2 load are eliminated, and the clamp nut 2 that gets loose is up to predetermined altitude, transfers lifting device.

Preferably, as shown in Figure 2, described clamp nut comprises screwed hole section and unthreaded hole section, and wherein unthreaded hole end internal diameter is greater than urceolus upper end external diameter, and like this, unthreaded hole Duan Keyu urceolus external diameter cooperates to form reliably locatees, and guarantees the stability under the loaded state.

Preferably, described clamp nut is supported on the upper surface of urceolus by thrust bearing in certain embodiments, guarantees that clamp nut 2 can adjust easily.

In certain embodiments, can be in the upper surface coating lubricating oil of bearing surface and the urceolus 3 of clamp nut, realize that the convenient of clamp nut adjust.

Simultaneously, be preferably in clamp nut 2 and smear anticorrisive agent with the mating part of inner core 1, to guarantee carrying out smoothly of follow-up adjustment.

About described lifting device, it mainly acts on is lifting, and less demanding to equipment, can adopt mechanical lifting device, simultaneously, can adopt the hydraulic lifting device, wherein the latter is operated steadily, power density is big, be preferable selection, further selection then is jack 4, and is simple in structure, can have enough to meet the need use, economize on the use of funds.

According to said structure, it has the following advantages as can be known so:

1, good stability: load is supported for rigid support, not distortion, good stability.

2, regulation and control are accurately: utilize jack adjustment height, and fastening by nut, can accomplish accurately to adjust height.

3, economize on the use of funds: jack can have enough to meet the need use, economizes on the use of funds.

4, conserve space: jack is placed in the urceolus, does not take up room in addition, can realize the original position lifting, conserve space and material.

5, easy and simple to handle: as only to need operation jack and nut can realize frame.

Claims

1. the lifting of can bearing a heavy burden falls to setting up fully, it is characterized in that, comprising:

Urceolus (3);

Lifting device is arranged in the described urceolus;

Inner core (1), the bottom is held by described lifting device, and is directed at described urceolus (3), and has external screw thread; And

Clamp nut (2), end face are supported in the upper surface of described urceolus and cooperate with the external screw thread of described urceolus.

2. the lifting of bearing a heavy burden according to claim 1 falls to setting up fully, it is characterized in that described clamp nut comprises screwed hole section and unthreaded hole section, and wherein unthreaded hole end internal diameter is greater than urceolus upper end external diameter.

3. the lifting of bearing a heavy burden according to claim 1 and 2 falls to setting up fully, it is characterized in that described clamp nut is supported on the upper surface of urceolus by thrust bearing.

4. the lifting of bearing a heavy burden according to claim 1 falls to setting up fully, it is characterized in that described lifting device is jack (4).