CN202969255U

CN202969255U - Swivel spherical hinge with nonmetal sliding plates uniformly distributed on spherical surface

Info

Publication number: CN202969255U
Application number: CN 201220561987
Authority: CN
Inventors: 李恒跃; 顾海龙; 姜文英; 张文光
Original assignee: Luoyang Sunrui Special Equipment Co Ltd
Current assignee: Railway Engineering Research Institute of CARS; China Railway Design Corp; CSSC Shuangrui Luoyang Special Equipment Co Ltd
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2013-06-05
Anticipated expiration: 2022-10-30

Abstract

The utility model belongs to the technical field of bridge engineering and discloses a swivel spherical hinge with nonmetal sliding plates uniformly distributed on a spherical surface. The disclosed swivel spherical hinge with the nonmetal sliding plates uniformly distributed on the spherical surface comprises an upper spherical hinge, a lower spherical hinge and a hinge pin (3); the upper spherical hinge and the lower spherical hinge are connected into a whole by the hinge pin (3); the concave spherical surface of a spherical panel of the lower spherical hinge is provided with a plurality of grooves which are uniformly distributed in a ring shape; a plurality of ring shapes are formed by the grooves; the ring shapes are concentric; the grooves are cylindrical; the nonmetal sliding plates (4) are embedded in the grooves; and the depth of each groove is 40 percent to 80 percent of the thickness of each nonmetal sliding plate (4). According to the utility model, the nonmetal sliding plates are uniformly arranged on the concave spherical surface of the spherical panel of the lower spherical hinge, so that a load is uniformly transferred, the rotation is stable and the reliability is high; and the nonmetal sliding plates are embedded in the grooves, so that the swivel spherical hinge has the characteristics of high bearing capacity, firmness and reliability, meets the requirements for carrying out swivel construction on a large span and high bearing capacity bridge structure and improves the convenience and reliability of construction.

Description

The Rotary ball hinge of the uniform nonmetal slide plate of a kind of sphere

Technical field

The utility model belongs to technical field of bridge engineering, mainly proposes the Rotary ball hinge of the uniform nonmetal slide plate of a kind of sphere.

Background technology

In recent years, modern rapid transit system is developed rapidly, and high-speed railway and passenger traffic line special line, speedway are in the extensive construction stage.Along with the construction of high-speed railway, highway, in succession emerge large quantities of large bridges that pass through the zanjon valley, cross over railway and speedway.This type of bridge adopts conventional construction method difficulty very large due to the restriction that is subjected to construction environment and traffic factor.The method of turning construction can be avoided the impact on other circuit transportation preferably, overcome in high mountain gorge, the difficulty that The water is deep and the current fast or ship navigation sets up Longspan Bridge on the river course frequently, especially to building the busy urban interchange of communications and transportation and railroad underbridge, its advantage is more obvious.Construction Technology of Level Swing Method is with its economy, convenience, the characteristics person's that more and more is subject to the bridge construction favor reliably.

Hinged bearing is as the core component of rotating mechanism in rotator construction, is the key of success of turning, and is also to determine to turn the key of precision.At present, the hinged bearing that adopts in Horizontal Swing Construction has several forms such as concrete hinge, steel hinge usually, and wherein the steel hinge is divided into again flat hinge and ball pivot.The concrete hinge is little because of its bearing capacity, the shortcomings such as friction factor large, poor stability, easy to crack, construction requirement is high, can't use in the rotator construction of large span, large heavy girder structure.Flat hinge supporting capacity is large, friction factor is less, stability is better, but adopts the flat balanced adjustment that is difficult to carry out rotor that cuts with scissors, and high to the requirement of alignment and balance counterweight in rotation process, construction requirement is higher.Ball pivot is to use more hinged bearing member in present rotator construction, but has that supporting capacity is large, an advantage such as the less self-centering adjustment of friction factor, stability are better.Ball pivot mainly is made of the convex-concave spherical plate that the radius of a ball coordinates, and spherical plate is strengthened by gusset; The major defect of the Rotary ball hinge of use existence at present is to rotate to use friction slide plate layout reasonable not, and the slide plate that rubs is fixing unreliable, and ball pivot rotation reliability is lower.

The utility model content

For solving the problems of the technologies described above, the purpose of this utility model is the Rotary ball hinge that proposes the uniform nonmetal slide plate of a kind of sphere.

The utility model adopts following technical scheme for completing above-mentioned purpose:

The Rotary ball hinge of the uniform nonmetal slide plate of a kind of sphere, described Rotary ball hinge is placed on skeleton, and described Rotary ball hinge includes ball pivot, lower ball pivot and bearing pin; Described upper ball pivot and lower ball pivot are connected as a single entity by bearing pin; Described upper ball pivot includes ball pivot spherical plate and upper ball pivot gusset; Described upper ball pivot spherical plate is protruding sphere, and the upper described protruding sphere of ball pivot spherical plate is smooth metal covering; Described lower ball pivot includes lower ball pivot spherical plate and lower ball pivot gusset; Described lower ball pivot spherical plate is concave spherical surface; Have the uniform some grooves of annular on the described concave spherical surface of lower ball pivot spherical plate, and a plurality of annulars of some described groove formations, described a plurality of annulars have a common center of circle; Described groove is cylindric; Inlay nonmetal slide plate in described groove, the degree of depth of described groove is 40%～80% of non-metal slider thickness, and the nonmetal slide plate on lower ball pivot spherical plate and the metal covering of upper ball pivot spherical plate consist of the Rotary ball hinge friction pair.

Described nonmetal slide plate is a kind of the making in polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene (molecular weight is greater than 8,000,000), nylon.

The Rotary ball hinge of the uniform nonmetal slide plate of a kind of sphere that the utility model proposes is evenly arranged nonmetal slide plate on the concave spherical surface of lower ball pivot spherical plate, the load transmission is even, and stability of rotation, reliability are high; Nonmetal slide plate adopts and is embedded in groove, has bearing capacity high, solid and reliable characteristics, satisfy large span, high-bearing bridge construction and carried out the demand of rotator construction, improved construction convenience and reliability, having avoided the engineering time, long normal operation exerts an influence and across the problem of rivers and valley constructional difficulties to line related.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of lower ball pivot in the utility model.

Fig. 3 is the A-A sectional drawing of Fig. 2.

In figure: 1, upper ball pivot spherical plate, 2, upper ball pivot gusset, 3, bearing pin, 4, nonmetal slide plate, 5, lower ball pivot gusset, 6, lower ball pivot spherical plate, 7, skeleton.

The specific embodiment

With specific embodiment, the utility model is illustrated by reference to the accompanying drawings, still, the utility model is not limited to the present embodiment.

As shown in Figure 1, the Rotary ball hinge of the uniform nonmetal slide plate of a kind of sphere, described Rotary ball hinge are placed on skeleton 7, and described Rotary ball hinge includes ball pivot, lower ball pivot and bearing pin 3; Described upper ball pivot and lower ball pivot are connected as a single entity by bearing pin 3; Described upper ball pivot includes ball pivot spherical plate 1 and upper ball pivot gusset 2; Described upper ball pivot spherical plate 1 is protruding sphere, and the upper described protruding sphere of ball pivot spherical plate 1 is smooth metal covering; Described lower ball pivot includes lower ball pivot spherical plate 6 and lower ball pivot gusset 5; Described lower ball pivot spherical plate 6 is concave spherical surface; Have the uniform some grooves of annular on the described concave spherical surface of lower ball pivot spherical plate 6, and some described grooves consist of a plurality of annulars, described a plurality of annulars common centers of circle; Described groove is cylindric; Inlay nonmetal slide plate 4 in described groove, nonmetal slide plate is a kind of the making in polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene (molecular weight is greater than 8,000,000), nylon; The degree of depth of described groove is 40%～80% of non-metal slider 4 thickness, the reliable constraint of assurance to nonmetal slide plate, improve the slide plate bearing capacity, in this embodiment, depth of groove is 50% of nonmetal slide plate thickness, and the nonmetal slide plate 4 on lower ball pivot spherical plate consists of the Rotary ball hinge friction pair with the metal covering of upper ball pivot spherical plate.

Claims

1. the Rotary ball hinge of the uniform nonmetal slide plate of sphere, described Rotary ball hinge is placed on skeleton (7), and described Rotary ball hinge includes ball pivot, lower ball pivot and bearing pin (3); Described upper ball pivot and lower ball pivot are connected as a single entity by bearing pin (3); Described upper ball pivot includes ball pivot spherical plate (1) and upper ball pivot gusset (2); Described upper ball pivot spherical plate (1) is protruding sphere, and the upper described protruding sphere of ball pivot spherical plate (1) is smooth metal covering; Described lower ball pivot includes lower ball pivot spherical plate (6) and lower ball pivot gusset (5); Described lower ball pivot spherical plate (6) is concave spherical surface; It is characterized in that: have the uniform some grooves of annular on the concave spherical surface of described lower ball pivot spherical plate (6), and a plurality of annulars of some described groove formations, described a plurality of annulars have a common center of circle; Described groove is cylindric; Inlay nonmetal slide plate (4) in described groove; The degree of depth of described groove is 40%～80% of non-metal slider (4) thickness, and the nonmetal slide plate (4) on lower ball pivot spherical plate consists of the Rotary ball hinge friction pair with the metal covering of upper ball pivot spherical plate (1).