CN201087325Y

CN201087325Y - Concrete box beam hydraulic core support for special railway transportation line

Info

Publication number: CN201087325Y
Application number: CNU2007200912633U
Authority: CN
Inventors: 鲍威; 朱延华
Original assignee: HENAN MANA BUILDING FORMWORK CO Ltd
Current assignee: HENAN MANA BUILDING FORMWORK CO Ltd
Priority date: 2007-07-28
Filing date: 2007-07-28
Publication date: 2008-07-16
Anticipated expiration: 2017-07-28

Abstract

The utility model relates to a hydraulic pressure core mould supporting frame of a concrete box girder for a special railway line for passenger transport, and the supporting frame comprises a core mould and at least two groups of lifting oil cylinders (2) arranged below an upper flat mould (7) of the core mould along the direction of the length of the core mould. The utility model is characterized in that each group of the lifting oil cylinders (2) is composed of two lifting oil cylinders (2) which are arranged in parallel, the upper end of the two lifting oil cylinders (2) which are arranged in parallel is fixedly connected with the upper flat mould (7) by a supporting frame (3), a rigid body structure is formed between the two lifting oil cylinders (2) which are arranged in parallel by a connecting component, and the lower end of the lifting oil cylinder is matched with a guide track (1). The core mould supporting frame of the utility model can obtain larger rigidity by using less material, and the integral structure of the utility model is enabled to be firmer and more durable, thus, the work safety of a moulding board is ensured in the state of stillness or running, and accidents are avoided.

Description

Special line for passenger trains concrete box girder hydraulic pressure core bracing frame

Technical field

The utility model relates to a kind of hydraulic pressure core that is applicable to the special line for passenger trains concrete box girder, relate to a kind of special line for passenger trains concrete box girder hydraulic pressure core bracing frame specifically.

Background technology

Concrete blinding and the support work safety when stand under load and operation is of crucial importance, in case its consequence that has an accident is hardly imaginable, not only can damage the engineering of Hot work in progress, and tends to cause the injures and deaths more than many people.The work safety of template and the work safety of support, the two is closely to link to each other, interpenetrate and influence: the work safety of template need obtain the assurance of support, any abnormal state that the timberer does to occur, all destruction that can influence the operate as normal of template even cause interlock type.

The special line for passenger trains concrete box girder belongs to large box girder, big because of its volume, weight is big, then the work safety problem of box-beam plate and support system seems even more important, especially the core of case beam will bear the multiple power from circumferential concrete, and this just more needs the rigidity of core template and support enough big.For the support of core, not only need to bear the weight of core when static, also want to support core and move up and down reposefully.Existing hydraulic pressure core is still continued to use traditional bracing frame mode---separate type mostly, as Fig. 8, Fig. 9, shown in Figure 10, be that template part is the monomer structures that independently separate with bracing frame 3, hinged with support and core respectively by oil cylinder 2, drive moving up and down of template by stretching of oil cylinder.The drawback of this bracing frame form maximum be exactly core mold plate be two that independently separate with bracing frame, and middle oil cylinder is a flexible body, so the two rigidity of template and bracing frame can not be strengthened mutually, therefore the two self rigidity all needs very big, only in this way could guarantee the work safety of template when static or running status, and this rack making gets up that consumptive material is many, cost is high, also seems heavy in appearance.

Summary of the invention

The purpose of this utility model provides the special line for passenger trains concrete box girder hydraulic pressure core bracing frame of the more reasonably low consumptive material of a kind of structure, big rigidity just at existing weak point in the above-mentioned prior art.

The purpose of this utility model can realize by following technical measures:

The utility model special line for passenger trains concrete box girder hydraulic pressure core bracing frame comprises core, be arranged at least two group hoist cylinders of flat-die below on the core along the core length direction, described every group of hoist cylinder all is made up of two hoist cylinders that are set up in parallel, the upper end of two hoist cylinders that are set up in parallel is fixed together by bracing frame and last flat-die, and constituting a rigid structure by connecting elements between two hoist cylinders that are set up in parallel, matches with guide rail in the lower end of hoist cylinder.

Since the utility model by fixed connecting piece with hoist cylinder, bracing frame directly and on the core flat-die be fixed together, and every group of hoist cylinder constituted a rigid structure by connecting elements, thereby make it to form a big rigid body member, and do as a whole with the oil cylinder lifting.Its advantage is: the rigidity of the big rigidity body that forms is the several times of template and the original rigidity of bracing frame, is far longer than the two rigidity sum.Reason is that the rigidity of object is highly to become the cube relation with it, when the two cube that highly is superimposed as a whole is far longer than cube sum, i.e. H separately ₁ ³+ H ₂ ³＜＜(H ₁+ H ₂) ³Therefore, adopt structure of the present utility model to obtain bigger rigidity, make its overall structure more sturdy and durable, and then play the work safety of assurance template when static or running status, avoid the generation of contingency with less material.

Accompanying drawing is as follows

Fig. 1 is the sectional view of the utility model when being in overall shrinkage.

Fig. 2 is the sectional view of the utility model when being in whole outwards softened state.

Fig. 3 is the left view of Fig. 2

Fig. 4 is the A-A sectional view among Fig. 2

Fig. 5 is the partial enlarged drawing at B place among Fig. 4

Fig. 6 is the part drawing (alignment pin) among Fig. 5

Fig. 7 is the part drawing (positioning sleeve) among Fig. 5

Fig. 8 is the sectional view of traditional bracing frame when shrinking

Fig. 9 is the sectional view of traditional bracing frame when strutting

Figure 10 is the left view of Fig. 9

Sequence number among the figure: 1-guide rail, 2-hoist cylinder, 3-bracing frame, 4-positioning sleeve, 5-alignment pin, 6-nut, the last flat-die of 7-, the last gusset of 8-, gusset under the 9-, 10-hinge fitting, the last gusset oil cylinder of 11-, 12-inferior horn leaf fat cylinder.

The specific embodiment

The utility model is further described below with reference to executing example (accompanying drawing):

Show as Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model hydraulic pressure core bracing frame mainly comprises flat-die 7, at least two groups that are arranged on flat-die 7 belows on the core along the core length direction are used for jacking or fall the hoist cylinder 2 of going up flat-die after rise, are connected with side form part by the left and right hydraulic pressure core of hydraulic oil cylinder driving at the dual-side of last flat-die 7 respectively by articulated manner; The side form of described left and right hydraulic pressure core part is all formed by the last gusset 8 that combines with the dual-side of last flat-die 7 by articulated manner with by the following gusset 9 that articulated manner is connected gusset 8 lower ends; Be used to drive that gusset 8 outwards struts, inwardly the two ends of the last gusset oil cylinder 11 of retraction combine with last flat-die 7 and last gusset 8 respectively, the two ends that are used to drive down the inferior horn leaf fat cylinder 12 that gusset 9 outwards struts, inwardly bounces back combine with last gusset 8 and following gusset 9 respectively; Every group of hoist cylinder 2 described in the utility model all is made up of two hoist cylinders that are set up in parallel, the upper end of two hoist cylinders that are set up in parallel is fixed together by bracing frame 3 and last flat-die 7, the connecting elements that is used for affixed hoist cylinder, bracing frame, last flat-die is made up of the positioning sleeve 4 shown in Fig. 5,6,7, alignment pin 5, nut 6, and constituting a rigid structure by connecting elements between two hoist cylinders that are set up in parallel, matches with guide rail 1 in the lower end of hoist cylinder.

Claims

1. special line for passenger trains concrete box girder hydraulic pressure core bracing frame, it comprises core, be arranged at least two group hoist cylinders (2) of flat-die on the core (7) below along the core length direction, it is characterized in that: described every group of hoist cylinder (2) all is made up of two hoist cylinders that are set up in parallel, the upper end of two hoist cylinders that are set up in parallel is fixed together by bracing frame (3) and last flat-die (7), and constituting a rigid structure by connecting elements between two hoist cylinders that are set up in parallel, matches with guide rail (1) in the lower end of hoist cylinder.