CN202401403U

CN202401403U - Heavy-type hinge for installing cable tower of cable bridge

Info

Publication number: CN202401403U
Application number: CN2012200102815U
Authority: CN
Inventors: 张强; 王道斌; 孟章印; 王娜; 申永峰; 王卫中; 李桂花
Original assignee: HEBEI JINHUAN STEEL STRUCTURE ENGINEERING CO LTD
Current assignee: Jinhuan Construction Group Co., Ltd.
Priority date: 2012-01-11
Filing date: 2012-01-11
Publication date: 2012-08-29
Anticipated expiration: 2022-01-11

Abstract

The utility model discloses a heavy-type hinge for installing a cable tower of a cable bridge, which comprises a lower hinge seat, a hinge shaft and an upper hinge seat. The upper hinge seat and the lower hinge seat are connected through the hinge shaft, and the upper hinge seat can freely rotate relative to the lower hinge seat. The heavy-type hinge is used for integrally vertical rotation of the cable tower of the slope cable bridge, the lower hinge seat of the hinge is fixed on a lower hinge seat anchor plate which is welded and fixed with a steel tower foundation section embedded in a concrete tower root, fineness of a rotation portion where the hinge shaft, the lower hinge seat and the upper hinge seat are connected is all Ra3.2 grade or above Ra3.2 grade, high contact area and stable rotation between the hinge shaft and a shaft hole are guaranteed, guarantees are provided to integrally vertical rotation of the cable tower, time and labor for installing the cable tower are saved, and installation accuracy is high.

Description

Drag-line bridge Sarasota is installed and is used heavy hinge

Technical field

The utility model relates to the whole vertical transfer of a kind of drag-line bridge Sarasota the equipment of usefulness is installed, and especially a kind of Sarasota is installed and used heavy hinge.

Background technology

Now, in the bridge engineering, the Longspan Bridge multiselect is with drag-line or suspension bridge, for handsome in appearance; The moulding of Sarasota and mounted angle degree are of all kinds, and this has proposed requirement with regard to setting up for the installation of Sarasota, adopt mostly and set up full framing or add dorsal funciculus hanging method piecemeal, and doing promptly like this wastes time and energy; Need the ultra-large type lifting appliance, simultaneously, the work high above the ground that has increased the workman is dangerous; And, the control of integral solder difficult quality, assembly precision is difficult for controlling.Especially when Sarasota had certain mounted angle, difficulty of construction was bigger.

The utility model content

The utility model technical issues that need to address provide a kind of Sarasota ground assembling that is used for, the heavy hinge of whole vertical transfer, and it is time saving and energy saving that Sarasota is installed, and installation accuracy is high.

For addressing the above problem, the technical scheme that the utility model is taked is: a kind of drag-line bridge Sarasota is installed and is used heavy hinge, comprises following free bearing, hinge and last free bearing, and last free bearing is connected through hinge with following free bearing, and last free bearing can freely rotate relative to following free bearing.

Said free bearing down is fixed on down on the free bearing anchor slab, and following free bearing anchor slab is fixing with the head tower section of foundation welding that is embedded in the concrete column foot.

The fineness of the rotary part that said hinge and following free bearing, last free bearing join is the Ra3.2 level or more than the Ra3.2 level.

Adopt the beneficial effect that technique scheme produced to be: the drag-line bridge Sarasota of the utility model is installed with heavy hinge supporting capacity >=3000 tons; Be used for the whole vertical transfer of Sarasota, the following free bearing of hinge is fixed on down on the free bearing anchor slab, and following free bearing anchor slab is fixing with the head tower section of foundation welding that is embedded in the concrete column foot; The fineness of the rotary part that hinge and following free bearing, last free bearing join is the Ra3.2 level or more than the Ra3.2 level; Guaranteed the higher contact area and the smooth rotation of hinge and axis hole, for the whole vertical transfer of Sarasota provides guarantee, it is time saving and energy saving that Sarasota is installed; Installation accuracy is high, and cost is low.

Description of drawings

Fig. 1 is the heavy hinge master of a utility model TV structure sketch map;

Fig. 2 is that the A of the utility model Fig. 1 is to structural representation;

Fig. 3 is that free bearing is connected the back structural representation under the utility model with following free bearing anchor slab;

Fig. 4 is that the B of the utility model Fig. 3 is to structural representation;

Fig. 5 is a free bearing structural representation on the utility model;

Fig. 6 is that the C of the utility model Fig. 5 is to structural representation;

Wherein: 1, following free bearing anchor slab, 2, free bearing down, 3, hinge, 4, go up free bearing, 5, free bearing down, 6, go up free bearing.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail: be as illustrated in fig. 1 and 2; The utility model drag-line bridge Sarasota is installed and is used heavy hinge; Comprise following free bearing 2, hinge 3, go up free bearing 4 and following free bearing anchor slab 1, following free bearing is fixed on down on the free bearing anchor slab, and last free bearing is connected through hinge with following free bearing; Last free bearing can freely rotate relative to following free bearing, and last free bearing connects Sarasota first section box body.Wherein pin diameter is Φ 400mm, and material adopts 40Cr steel processing back modifier treatment, and

otic placode

5,6 materials adopt the steel plate of Q345B material, and thickness is 90mm.Wherein go up the free bearing structure with reference to figure 5 and Fig. 6, following free bearing and structure after following free bearing anchor slab is connected are with reference to figure 3 and Fig. 4

Following free bearing, hinge and the last free bearing material of forming hinge all carry out ultrasonic testing/ ultrasonic examination before use and detect, and after completing, processing eliminates stress.The fineness of the rotary part that hinge is connected with upper and lower free bearing all reaches more than the Ra3.2 level.And in order to reduce rotary resistance, during assembling, contact surface coating butter and polytetrafluoroethylene powder.

The application of heavy hinge:

When using, hinge is the commentaries on classics hinge of Sarasota vertical transfer process, and after the Sarasota vertical transfer puts in place, hinge will bear and transmit whole load of Sarasota, and hinge uses in pairs, and the load during the Sarasota vertical transfer is shared by two hinges jointly; Following free bearing adopts the welding of groove penetration weld with following free bearing anchor slab connected mode, and the head tower of following free bearing anchor slab and concrete towers pier is weldingly fixed on together; Its installing and locating precision satisfies the hinge installation requirement, guarantees carrying out smoothly of later stage Sarasota assembly unit and vertical transfer; Upper and lower free bearing connects with dummy shaft earlier, and dummy shaft external diameter and free bearing aperture minus tolerance are 0.5mm, the contact surface coating butter and the polytetrafluoroethylene powder of dummy shaft and upper and lower free bearing; Dummy shaft processes with thick-wall seamless, after dummy shaft penetrates upper and lower free bearing, must guarantee that free bearing can freely rotate, will go up the installation site that free bearing goes to itself and Sarasota first section box body then, will go up free bearing with support and weld and fix; Upper hinge and the welding of first section box body is fixing, change through the gap of using clearance gauge inspection dummy shaft and axis hole always in the welding process of last free bearing and first section box body, when finding inhomogeneous deformation, in time adjust welding sequence; After the Sarasota assembly unit is accomplished, dummy shaft is ejected, install and be locked the contact surface coating butter and the polytetrafluoroethylene powder of hinge and upper and lower free bearing with bayonet lock with hinge.

Claims

1. a drag-line bridge Sarasota is installed and used heavy hinge, it is characterized in that: comprise following free bearing, hinge and last free bearing, last free bearing is connected through hinge with following free bearing, and last free bearing can freely rotate relative to following free bearing.

2. drag-line bridge Sarasota according to claim 1 is installed and is used heavy hinge, it is characterized in that said free bearing down is fixed on down on the free bearing anchor slab, and following free bearing anchor slab is fixing with the head tower section of foundation welding that is embedded in the concrete column foot.

3. drag-line bridge Sarasota according to claim 1 is installed and use heavy hinge, and the fineness that it is characterized in that the rotary part that said hinge and following free bearing, last free bearing join is the Ra3.2 level or more than the Ra3.2 level.