CN202543736U

CN202543736U - Automatic reducing type turnout point rail connection iron

Info

Publication number: CN202543736U
Application number: CN2012201017449U
Authority: CN
Inventors: 张振坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-10
Filing date: 2012-03-10
Publication date: 2012-11-21
Anticipated expiration: 2022-03-10

Abstract

The utility model discloses an automatic reducing type turnout point rail connection iron. The automatic reducing type turnout point rail connection iron consists of a point rail connection iron, a pin shaft, conical sleeves, pressure springs, nuts and the like, and is characterized in that conical sleeves with opening grooves are respectively placed into conical holes which are extended out of crank arms at two ends of the point rail connection iron; one end of the pin shaft 2 is sleeved into the pressure springs; gaskets 5 pass through inner holes of the conical sleeves and penetrate out of the inner hole of the conical sleeve on the crank arm at the other end of the point rail connection iron; the gaskets 5 and the pressure springs 4 are sequentially sleeved on the crank arm and are fastened by the nuts and penetrate through an opening pin, so that the abrasion gap can be automatically eliminated; the abrasion between the pin shaft and the pin hole can be overcome; the connection iron can be frequently used, and the nut at one end of the pin shaft is fastened again after the gap is generated in the pin hole, so that the conical sleeves are retracted tightly automatically by extrusion force to eliminate the gap; and therefore, the service life of the point rail connection iron and the pin shaft is prolonged, and the safe and reliable use of the equipment is guaranteed.

Description

Automatic diameter changing formula point tongue connects iron

Technical field:

A kind of automatic diameter changing formula point tongue connects iron, is applicable on the railway switch device, is suitable for especially on the outer locking device of railway speed increase track switch.

Background technology:

Outside railway speed increase, on the locking track switch, be used for connecting the pin-and-hole of latch hook on the switch rail connection iron, produce abrasion owing to receive the bearing pin pivoting friction; Can make circular hole on the switch rail connection iron become big ovalize, bearing pin and attenuate and produce spacious movingly, make the pin-and-hole wearing and tearing aggravation on the latch hook accordingly, still not have way well at present and solve; Cause point tongue and stock rail not closely connected; Switch indication can not show normally that overcoming above problem often needs frequent replacing bearing pin or switch rail connection iron, not only causes great waste; And influence the normal use of equipment, bring unsafe factor to driving.

Summary of the invention:

The utility model will provide a kind of automatic diameter changing formula point tongue to connect iron exactly; Can eliminate the abrasion gap automatically; Reduce the contact gap between the pin-and-hole on bearing pin and the switch rail connection iron; Can overcome the wearing and tearing between bearing pin and the pin-and-hole, increase the application life of switch rail connection iron and bearing pin, guarantee that device security uses reliably.

The utility model can be implemented through following technical measures: a kind of automatic diameter changing formula point tongue connects iron; Constitute by institutes such as switch rail connection iron, bearing pin, taper sheath, elastic pressuring spring, nuts; It is characterized in that: stretch out at switch rail connection iron 1 two ends and insert the dehisce taper sheath 3 of groove of a band in the bellmouth on the connecting lever respectively; With bearing pin 3 one ends be inserted in elastic pressuring spring 4, pad 5 passes taper sheath 3 endoporus, taper sheath 3 endoporus from other end connecting lever pass, and overlap successively on the threaded rod that Upper gasket 5, elastic pressuring spring 4, pad 5 usefulness nuts 6 be fastened on bearing pin 2 ends again and put on cottor pin; Elastic pressuring spring is one at least in this structure, also can adopt spring washer.Taper sheath is a cylindrical shell structure; Diameter of bore and pin diameter are complementary; Bellmouth coupling on male-tapered face and the switch rail connection iron; The taper surface longitudinal length is greater than the bellmouth degree of depth, and vertically nozzle is provided with the groove of dehiscing that connects from two ends along cylindrical shell for it, and the opposite of the groove of dehiscing is provided with a groove of dehiscing by the non-perforation of big taper surface to fine taper face.

The utility model is compared present technology and is had the following advantages:

1, can eliminate abrasion gap between bearing pin and the pin-and-hole automatically;

2, can frequently use,, in use after this, just can automatically taper sheath be tightened and eliminate the gap, make it to be in for a long time good user mode through the elasticity extruding force in case after pin-and-hole produces the gap, only need the nut of bearing pin one end is equipped with tightly once more,

Description of drawings:

Fig. 1 is the utility model structural profile sketch map

Fig. 2 is the taper sheath structural representation

Fig. 3 is that the utility model cooperates scheme of installation with latch hook

Specific embodiment

To combine accompanying drawing to describe the embodiment of the utility model in detail below.

A kind of automatic diameter changing formula point tongue connects iron; Constitute by institutes such as switch rail connection iron 1, bearing pin 2, taper sheath 3, elastic pressuring spring 4, nuts 6; It is characterized in that: switch rail connection iron 1 two ends are stretched out and are inserted the dehisce taper sheath 3 of groove of a band in the bellmouth on the connecting lever respectively; With bearing pin 2 one ends be inserted in elastic pressuring spring 4, pad 5 passes taper sheath 3 endoporus; Taper sheath 3 endoporus from other end connecting lever pass, and overlap successively that Upper gasket 5, elastic pressuring spring 4, pad 5 usefulness nuts 6 are fastening puts on cottor pin again, and this structure is in the process of using; Elastic pressuring spring 4 can adopt two also can adopt one, and elastic pressuring spring 4 also can adopt spring washer to be used for reaching the elastic compaction to taper sheath 3.

Taper sheath 3 is a cylindrical shell structure; Diameter of bore and bearing pin 2 diameters are complementary; Bellmouth on male-tapered face and the switch rail connection iron 1 coupling, taper surface longitudinal length be greater than the bellmouth degree of depth, and vertically nozzle is provided with the groove 7 of dehiscing that connects from two ends along cylindrical shell for it; The opposite of the groove 7 of dehiscing that connects can be provided with one or two grooves 8 of dehiscing by the non-perforation of big taper surface to fine taper face, is convenient to the purpose that stressed extruding shrinkage strain reaches anti-abrasion.In use, latch hook 9 is installed on the bearing pin 2, and bearing pin 2 is under the extruding force of both sides elasticity elastic pressuring spring 4; In taper sheath 3 bellmouth of filling in switch rail connection iron 1 tightly, the diameter of taper sheath 3 circular holes is diminished, bearing pin 2 can not produce wearing and tearing; Just latch hook rotates on bearing pin 2; As long as it is just passable in maintenance work from now on, to carry out the abrasionproof maintenance work of latch hook pin-and-hole, simplified maintenance work, alleviated the labour intensity of field worker; Prolong the application life of equipment, and can guarantee its more safe and reliable use.

Claims

1. an automatic diameter changing formula point tongue connects iron; Constitute by switch rail connection iron (1), bearing pin (2), taper sheath (3), elastic pressuring spring (4), nut (6) etc.; It is characterized in that: switch rail connection iron (1) two ends are stretched out and are inserted the dehisce taper sheath (3) of groove of a band in the bellmouth on the connecting lever respectively; Bearing pin (2) one ends are inserted in elastic pressuring spring (4); Pad (5) passes taper sheath (3) endoporus, and taper sheath (3) endoporus from other end connecting lever passes, and overlaps Upper gasket (5), elastic pressuring spring (4), pad (5) more successively and is fastened on the threaded rod of bearing pin (2) end with nut (6).

2. a kind of automatic diameter changing formula point tongue according to claim 1 connects iron; It is characterized in that: taper sheath (3) is a cylindrical shell structure; Diameter of bore and bearing pin (2) diameter is complementary, the bellmouth coupling on male-tapered face and the switch rail connection iron (1), and the taper surface longitudinal length is greater than the bellmouth degree of depth; Vertically nozzle is provided with the groove of dehiscing (7) that connects from two ends along cylindrical shell for it, and the opposite of the groove of dehiscing (7) of perforation can be provided with a groove of dehiscing (8) by the non-perforation of big taper surface to fine taper face.