CN102966044A

CN102966044A - Load-bearing lifting frame equipment

Info

Publication number: CN102966044A
Application number: CN2012105146157A
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: 2013-03-13
Anticipated expiration: 2032-12-05
Also published as: CN102966044B

Abstract

The invention discloses load-bearing lifting frame equipment comprising an outer cylinder, a lifting device, an inner cylinder and a fastening nut, wherein the lifting device is arranged in the outer cylinder; the bottom of the inner cylinder is jacked by the lifting device; the inner cylinder guides the outer cylinder and is provided with external thread; and the end face of the fastening nut supports the upper end face of the outer cylinder and is matched with the external thread of the outer cylinder. The load-bearing lifting frame equipment is convenient to adjust, has high stability and can lift by bearing load.

Description

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

Technical field

The present invention relates to a kind ofly fall to setting up standby, belong to the bridge construction auxiliary equipment.

Background technology

Current, the sand cylinder be the Bridges in Our Country construction of cast-in-situ box-beam the most frequent employing fall to setting up standby.Its principle is: the sand cylinder is comprised of urceolus and inner core, with at end-state bearing box beam load, urceolus is the sand of in-built certain altitude then with steel pipe processing for inner core, and it is complete to construct, the sand that has certain fluidity in the urceolus is emitted, highly reduce and just can realize holder function.

Although it is easy to process that the sand cylinder has, the bearing capacity advantages of higher, but this equipment also has certain defect, although height realize and can regulate and control according to sand using amount, 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 larger, stability is bad, and it is more loaded down with trivial details to operate.

Summary of the invention

For this reason, the present invention is directed to present sand cylinder and adjust poor performance and the bad defective of stability, provide a kind of convenient adjustment, and the born a heavy burden lifting of good stability falls to setting up standby.

The technical solution used in the present invention is:

A kind of lifting of bearing a heavy burden falls to setting up standby, 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 according to the lifting of bearing a heavy burden of the present invention and standby at first 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 standby, 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 standby, 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 standby, and described lifting device is jack, convenient control lift height.

Consider by reference to the accompanying drawings more detailed description, above-mentioned and other purpose of the present invention 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 standby structural representation according to the lifting of bearing a heavy burden of the present invention.

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 cylinder, those skilled in the art and absence of motivation go to seek structure as shown in Figure 4, and then turn by rigid support.

In structure as shown in Figure 4, a kind of lifting of bearing a heavy burden falls to setting up standby, 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 such 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 larger space, with stable support, be used for simultaneously the setting of miscellaneous equipment, 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 corresponding 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 the needs accurate adjustment, 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, and load turns 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 locates, 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, its Main Function is lifting, and not high to equipment requirement, can adopt the mechanical lift device, simultaneously, can adopt hydraulic pressure lifting device, wherein the latter is operated steadily, power density is large, be better 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 accurately: utilize jack adjustment height, by fastening nuts, can accomplish the accurate adjustment 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 standby, 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 standby, 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 standby, 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 standby, it is characterized in that described lifting device is jack (4).