CN201970881U

CN201970881U - Cast rotating single/double lug device

Info

Publication number: CN201970881U
Application number: CN201120016944XU
Authority: CN
Inventors: 韩新华; 杨勇; 刘明宇
Original assignee: Luoyang Xindi Electric Railway Co Ltd
Current assignee: Luoyang Xindi Electric Railway Co Ltd
Priority date: 2011-01-20
Filing date: 2011-01-20
Publication date: 2011-09-14
Anticipated expiration: 2021-01-20

Abstract

The utility model provides a cast rotating single/double lug device; rotating single/double lugs are serially connected in the centre part for adjusting skew after loading, which solves the problem that conventional thread stressed connection cannot bear fatigue load under large tension, fills in the blank in swivel joint for intermediate transition adjustment of anchorage of national and even international high speed railway terminals and improves security. The device is composed of a thin nut, an internal socket head screw, a cotter pin, a flat gasket, a rotating single lug, a pin shaft nut, and a double lug main body; the device is skillful and compact in structure, low in cost, safe and practical, large in stress, fatigue resistant, high in stability, anti-dropping and anti-disengagement after loading; moreover, the device is low in cost, convenient in processing, and suitable for various bad situations without extra consumption.

Description

Single ears device is rotated in a kind of casting

Technical field

The utility model relates to single ears device, and single ears device is rotated in especially a kind of casting.

Background technology

Be the stressed version that is threaded from the raw product of external import, structure relies on the fastening force that is threaded fully, promptly design speed per hour 200km/H when being used for quasi high-speed following railway, generally can not go wrong when real-world operation 160km/H is following, but the high speed railway 350km/H that is used for present China, under the fatigue load effect that replaces hightension (such as 30kN), can not satisfy the operating needs of 3 times of safety factors, safe operation for high speed railway has formed hidden danger, just change in time after when certain bar high-speed line trail run that China has opened, potential safety hazard occurring, therefore develop highly reliable safety, be convenient to assembling and adjustment, high-strength, the new structure product of antifatigue just becomes the task of top priority.In view of the foregoing, the swivel joint used of the domestic and even international high speed railway terminal middle transition adjustment of casting anchor needs to improve.

Summary of the invention:

The purpose of this utility model is to occur skew when mounted because the twist of catenary and contact wire itself causes in order to overcome the applied to high-speed railway touching net terminal and to cast anchor, thereby can cause the problems such as eccentric wear of the compensating device that casts anchor, provide a kind of casting to rotate single ears device, at the single ears of centre series connection rotation, be used to load the back and adjust skew, solve the problem that the stressed connection of traditional screw thread can't be born fatigue load under the hightension, filled up the blank of the swivel joint that middle transition adjustment that domestic and even international high speed railway terminal casts anchor uses; Improved safety.

The utility model adopts following technical scheme to achieve these goals: single ears device is rotated in a kind of casting, is by thin nut, socket head cap screw, and spring cotter, flat shim, the rotation monaural, the bearing pin nut, the ears body constitutes; One end of the ears body of fork-shaped is reserved groove, and the rotation monaural is set in the groove, and bottom portion of groove is reserved a hole, and socket head cap screw is set in the hole, and an end of socket head cap screw is provided with thin nut in groove; It is corresponding that two holes are reserved in the bifurcation of ears body, and the bearing pin nut is set in the hole, and an end of bearing pin nut is provided with the outside of flat shim at the ears body, reserves a hole on the bearing pin nut in the flat shim outside, and spring cotter is set in the hole.

Principle of work of the present utility model is: according to the difference of environment for use, the assembly opening of monaural end and ears end bearing pin can exchange respectively as input end and mouth, do not influence its work in-use performance; Its mode of operation is the confined state of this structure, after assembling back socket head cap screw assembles by diagram, then thin nut is screwed on and got final product, even nut loosening, this structure still has auto-lock function, and after the bearing pin assembling, socket head cap screw just can't withdraw from, in fact also just limit the rotation monaural and from cylinder groove, deviate from, promptly realized self-locking; After the diagram assembling, realize freely rotating by assembly clearance therebetween between rotation monaural and the ears body.

The beneficial effects of the utility model are: this compact and ingenious structure, and cost is low, and is safe and practical, stressed big, endurance, the reliability height, slip-off preventing has loaded just and can not hold out, and cost is low, and is easy to process; Need not additive decrementation, be applicable to various abominable occasions.

The non-threaded connection of stressed faying face of rotation, the assembly direction non-stress direction of screw thread, but be designed to cylinder groove nest bonded assembly structural shape, can not throw off because fatigue is stressed;

This rotates single ears and is applied to the contact wire of present high speed railway hightension or the another kind of form that the catenary compensation is casted anchor as a kind of rotation adjustment device, be a kind of safe and reliable, easy for installation, adjust transition adaptor union flexibly, be mainly used in China's high speed passenger dedicated railway at present, certainly the application of quasi high-speed highway is safer, has solved the problem of tired slippage when being threaded under the high speed railway large compensation tension force.

This rotates single ears is that what to adopt is high-strength casting alloy body, and cylinder groove nest bonded assembly structural shape has been realized the design-calculated target, is formulated comprehensively and promotes the use of at Beijing-to-Shijiazhuang force, Ningbo-Hangzhou high speed passenger dedicated railway.Certainly moderate owing to its design cost for non-high-revolving railway, it is suitable equally that this rotates single ears.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is a general assembly structural representation of the present utility model;

Among Fig. 1: thin nut 1, socket head cap screw 2, spring cotter 3, flat shim 4, rotation monaural 5, bearing pin nut 6, ears body 7.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

As shown in the figure, an end of the ears body 7 of fork-shaped is reserved groove, and rotation monaural 5 is set in the groove, and bottom portion of groove is reserved a hole, and socket head cap screw 2 is set in the hole, and an end of socket head cap screw 2 is provided with thin nut 1 in groove; It is corresponding that two holes are reserved in the bifurcation of ears body 7, and bearing pin nut 6 is set in the hole, and an end of bearing pin nut 6 is provided with the outside of flat shim 4 at ears body 7, reserves a hole on the bearing pin nut 6 in flat shim 4 outsides, and spring cotter 3 is set in the hole.

Claims

1. single ears device of casting rotation is by thin nut (1), socket head cap screw (2), spring cotter (3), flat shim (4), rotation monaural (5), bearing pin nut (6), ears body (7) constitutes, it is characterized in that: an end of the ears body (7) of fork-shaped is reserved groove, and rotation monaural (5) is set in the groove, and bottom portion of groove is reserved a hole, socket head cap screw (2) is set in the hole, and an end of socket head cap screw (2) is provided with thin nut (1) in groove; It is corresponding that two holes are reserved in the bifurcation of ears body (7), bearing pin nut (6) is set in the hole, one end of bearing pin nut (6) is provided with flat shim (4) in the outside of ears body (7), and the bearing pin nut (6) in flat shim (4) outside is gone up and reserved a hole, and spring cotter (3) is set in the hole.