CN201330352Y

CN201330352Y - Fastening mechanism of track rod locking and retaining nut

Info

Publication number: CN201330352Y
Application number: CNU2008201834284U
Authority: CN
Inventors: 钱恒玉; 石娜; 曹兵久
Original assignee: BEIJING SHIHAN CENTURY S && T Co Ltd
Current assignee: BEIJING SHIHAN CENTURY S && T Co Ltd
Priority date: 2008-12-18
Filing date: 2008-12-18
Publication date: 2009-10-21
Anticipated expiration: 2018-12-18

Abstract

Disclosed is a fastening mechanism of a track rod locking and retaining nut, which is a fastening element used together with a railway track rod and is composed of a locknut with a split skirt and a retaining washer with lock fins and retaining fins. The fastening element is disposed on the outer side of a track rod clamp head, the lock fins of the retaining washer are bent and extruded onto the clamp head to prevent the retaining washer from rotating freely, simultaneously, one of the retaining fins arranged on the retaining washer and corresponding to an opening on the skirt of the nut is further bent to be imbedded inside the square opening on the locknut skirt, thereby loosening or unscrewing of the nut is prevented, stabilizing the railway gage by the track rod is functioned, and traffic safety is ensured.

Description

The locking retaining nut of tie rod retention mechanism

Technical field

The locking retaining nut of tie rod retention mechanism is a kind of matching used locking retaining nut retention mechanism of railway gauge bar that is particularly suitable for, and belongs to the component of machine technical field.

Background technology

At present, the tie rod of on railway track, installing, be with common bolt and nut structure, though the nut inboard adds spring pad to prevent the loosening button that moves back of nut, bring into play the function that it keeps the regulation gauge, but bearing the train intense impact for a long time and shaking particularly under the curve action of centrifugal force, be difficult to reach nut loosening, do not move back button.In order to make circuit remain the gauge of regulation, guarantee that train normally moves, eliminate accident potential, drop into a large amount of human and material resources for a long time incessantly this class tie rod is safeguarded.Solve the tie rod nut loosening and move back the outstanding problem that button has become the line track maintenance.

Summary of the invention

The purpose of this utility model provides a kind of locking retaining nut retention mechanism that is made of locknut that has the opening skirt and the stopping shim that has retaining wing and locking wing of installing on tie rod, tie rod is installed and is easily produced the problem that nut loosening moves back button to solve with plain nut.

The tie rod structure is combined by locknut, stopping shim, outer dop, rail, inner clip head, tie rod.The locking retaining nut of its tie rod retention mechanism, be to combine by locknut and stopping shim, be installed in the outside of inside and outside dop, locknut is to make skirt at an end of nut body, be shaped at least 6 square aperture on the skirt outer, distance between the adjacent apertures equates, stopping shim central authorities are shaped on the centre bore that diameter equates with circular diameter in the locknut, stopping shim circumference outside is shaped on 1 locking wing, be shaped on 2 to 5 retaining wings with the corresponding circumference of locking wing outside, the square aperture on the width of retaining wing and length and the locknut skirt is complementary.This locking stopping mechanism is installed in the inside and outside dop outside of tie rod, and stopping shim is contained between dop and the locknut, and the locking wing extrusion on the stopping shim is on dop, and a retaining wing bends, and is installed in the square aperture on the locknut skirt.The utility model has the advantages that: 1, all parts all meet existing technical indicator, and processing is easy, and cost is low; 2, simple in structure, be convenient to install and use; 3, adopt the pad that has retaining wing and locking wing, locknut and tie rod dop have been combined, thoroughly solved the difficult problem that nut loosening moves back button.

Description of drawings

Fig. 1 is an assembling schematic diagram of the present utility model.

Fig. 2 is that the master of locknut looks schematic diagram.

Fig. 3 is the schematic top plan view of Fig. 2.

Fig. 4 is the floor map of stopping shim.

Among the figure: 1, locknut; 2, stopping shim; 3, outer dop; 4, rail; 5, inner clip head; 6, tie rod; 1-1, skirt; 1-2, square aperture; 2-1, locking wing; 2-2, retaining wing.

The specific embodiment

The utility model is by locknut 1, stopping shim 2, and outer dop 3, rail 4, inner clip head 5, tie rod 6 is formed.In the specific implementation, two locknuts are installed in tie rod 6 two ends thread segments near central lines of track respectively, successively stopping shim 2, tie rod inner clip head 5 are sleeved on the tie rod thread segment then, and the bayonet socket of inner clip head is installed on the flange of rail of rail 4 inboards.Tie rod 6 passes after the flange of rail, installs outer dop 3 of tie rod and stopping shim 2 successively, and the bayonet socket of outer dop 3 is installed on the flange of rail in rail 4 outsides, two locknuts 1 is installed in respectively on the termination of tie rod 6 two ends thread segments again.Article two, the locknut 1 that install in the outside in the rail, its skirt end be all towards the flange of rail, and mutually closely connected with stopping shim 3.After each parts installing and locating of above-mentioned nut retention mechanism, nut outside retention mechanism in two rail 4 flanges of rail of turn makes gauge reach the standard gauge value respectively.At last, the locking wing 2-1 on the stopping shim 3 is bended or bends in advance, extrusion can not rotate stopping shim 2 arbitrarily on dop.Simultaneously the corresponding retaining wing of the square aperture 1-2 2-2 on any one and the locknut 1 skirt 1-1 on the stopping shim 2 is bended, be installed in the square aperture 1-2 on locknut 1 skirt, prevent that locknut 1 generation is loosening or move back button, reach the purpose of the locking retaining of the utility model.

Claims

1. the locking retaining nut of tie rod retention mechanism, comprise locknut, retaining sheet, outer dop, rail, inner clip head and tie rod, it is characterized in that: the retaining nut of locking retaining nut retention mechanism, be to make skirt at an end of nut body, be shaped at least 6 square aperture on the skirt outer, the distance between adjacent apertures equates; Stopping shim central authorities are shaped on the centre bore that diameter equates with circular diameter in the locknut, stopping shim circumference outside is shaped on 1 locking wing, be shaped on 2 to 5 retaining wings in the circumference outside relative with locking wing, the square aperture on the width of retaining wing and length and the retaining nut skirt is complementary; This locking retaining nut retention mechanism, be installed in the inside and outside dop outside of tie rod, retaining sheet is contained between dop and the locknut, locking wing on the stopping shim bends, extrusion is on dop, to bend with the corresponding retaining wing of the opening on the nut skirt, be installed in the square aperture on the locknut skirt.