CN102966044B

CN102966044B - Load-bearing lifting frame equipment

Info

Publication number: CN102966044B
Application number: CN201210514615.7A
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: 2015-07-01
Anticipated expiration: 2032-12-05
Also published as: CN102966044A

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

Lifting of can bearing a heavy burden falls to setting up standby

Technical field

The present invention relates to one falls to setting up standby, belongs to bridge construction auxiliary equipment.

Background technology

Current, sand cylinder be Bridges in Our Country construction of cast-in-situ box-beam the most often adopt fall to setting up standby.Its principle is: sand cylinder is made up of urceolus and inner core, inner core is with steel pipe processing with at end-state bearing box beam load, and the sand of urceolus then in-built certain altitude, constructs complete, released by the sand in urceolus with certain fluidity, height reduction just can realize holder function.

Although sand cylinder has easy to process, bearing capacity advantages of higher, but this equipment also has certain defect, although height realizes controllable according to sand using amount, simultaneously because the gap between sand and its mobility cause being difficult to accomplish accuracy controlling highly, simultaneously, more can not realize holding lotus to hoist, institute's back-up sand has decrement, is out of shape larger, stability is bad, operates more loaded down with trivial details.

Summary of the invention

For this reason, the present invention is directed to current sand cylinder adjustment poor performance and the bad defect 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:

One lifting of can bearing a heavy burden falls to setting up standby, comprising:

Urceolus;

Lifting device, is arranged in described urceolus;

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

Clamp nut, end face is supported in the upper surface of described urceolus and coordinates with the external screw thread of described inner core.

Known based on said structure, falling according to lifting of bearing a heavy burden of the present invention, first erection is standby drives inner core to realize heavy burden by lifting device to hoist, and obvious, clamp nut can rise along with inner core and depart from the contact with urceolus upper surface; After jacking puts in place, drive described clamp nut to transfer and put in place and be supported in urceolus upper surface, now lifting device can reset, thus load turns to clamp nut in the quiet support of urceolus upper surface, thus, ensure that the stability of support.

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 is greater than urceolus upper end external diameter, to ensure reliable location, improves stability.

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, ensures the accuracy of adjustment and the reliability of adjustment.

Above-mentioned lifting of bearing a heavy burden falls to setting up standby, and described lifting device is jack, conveniently controls lift height.

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

Accompanying drawing explanation

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 falls to setting up standby structural representation according to lifting of bearing a heavy burden of the present invention.

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

Detailed description of the invention

With reference to accompanying drawing 4 is described, its overall structure is relatively simple, but inventor thinks, when the technical problem faced in the face of sand cylinder, those skilled in the art absence of motivation go the structure found as shown in Figure 4, and then turn by rigid support.

In the structure shown in figure 4, one lifting of can bearing a heavy burden falls to setting up standby, and its basic structure, comprising:

Urceolus 3;

Lifting device, is arranged in described urceolus;

Inner core 1, 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 is supported in the upper surface of described urceolus and coordinates with the external screw thread of described inner core.

First about urceolus 3, due to described lifting device will be driven, obviously, its not proper structure closed as bottom, therefore, those skilled in the art is to be understood that, herein, urceolus should be understood to support, but it has the part coordinated with described inner core 1, with the described inner core 1 of stable guiding, and preventing the effect of inner core 1 unstability, bottom can arrange larger space, with stable support, simultaneously for the setting of miscellaneous equipment, as described in lifting device.

And screw rod can be shown as described urceolus entirety, and the adjustment space of coupling lifting, the thread segment of coupling corresponding length, its entirety can show as overall screw rod, or has the structure of thread segment and polished rod section.

No matter which kind of structure, its upper end can be configured to support portion, mates the modular construction supported and arranges.

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

For clamp nut 2, and supporting screw thread, should consider load and arrange, those skilled in the art is easy understand accordingly.

In order to simplify structure, reduce himself weight, described inner core 1 also can show as the drum of letter, as long as it meets required rigidity requirement.

Thus, when needs accurate adjustment, lifting device drives inner core 1 to drive described clamp nut 2 up, after arriving predetermined altitude, transfer the upper surface of clamp nut to urceolus 3, continue adjustment clamp nut 2 to the pretightning force producing coupling, lifting device just can be transferred, and load turns by clamp nut 2 on the upper surface of urceolus 3.

Fall frame time, lifting device is up, jacking phase inner core 1, clamp nut 2 load eliminate, 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 major diameter fit forms reliable location, ensures the stability under loaded state.

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

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

Meanwhile, preferably anticorrisive agent is smeared, to ensure carrying out smoothly of follow-up adjustment at clamp nut 2 and the mating part of inner core 1.

About described lifting device, its Main Function is lifting, and not high to equipment requirement, mechanical lift device can be adopted, meanwhile, can adopt hydraulic pressure lifting device, wherein the latter is operated steadily, power density is large, for preferably selecting, further selection is then jack 4, and structure is simple, can use be had enough to meet the need, economize on the use of funds.

So according to said structure, known its has the following advantages:

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

2, regulation and control accurately: utilize jack to adjust height, by fastening nuts, can accomplish 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 urceolus, does not take up room in addition, can realize original position lifting, conserve space and material.

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

Claims

1. a 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 described urceolus;

Inner core (1), 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 is supported in the upper surface of described urceolus and coordinates with the external screw thread of described inner core;

Wherein, described clamp nut comprises screwed hole section and unthreaded hole section, and unthreaded hole end internal diameter is greater than urceolus upper end external diameter;

Described clamp nut is supported on the upper surface of urceolus by thrust bearing.

2. 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).