CN201432703Y

CN201432703Y - Rolling-type external locking device

Info

Publication number: CN201432703Y
Application number: CN200920109829XU
Authority: CN
Inventors: 高国栋; 赵建平; 张伟; 边衡; 赵永根; 杨丽芳
Original assignee: TAIYUAN JINGFENG RAILWAY ELECTRICITY EQUIPMENT MANUFACTURING Co Ltd
Current assignee: TAIYUAN JINGFENG RAILWAY ELECTRICITY EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2009-07-16
Filing date: 2009-07-16
Publication date: 2010-03-31
Anticipated expiration: 2019-07-16

Abstract

The utility model relates to a rolling-type external locking device, which is suitable for switches of railways, subways and light railways and is used for locking a switch point rail and a stock railor locking a movable nose rail and a wing rail. The device consists of a locking frame, a locking iron, a locking hook, rolling columns and a joint bearing and is characterized in that the rolling columns (2) are arranged in the square cavity of the locking hook (5); the locking hook (5) is in concave-convex connection with a locking plate (1); the heave of the locking hook (5) is embedded into the groove of the locking plate (1); the locking hook (5) is connected with the switch point rail by a pin shaft (7) and a connecting iron (6), thereby forming the rolling-type external locking device.The side part and the bottom part of the locking frame (4) can realize the rolling friction with the locking plate (1). The oil-free self-lubricating joint bearing is arranged at the connecting position of the head of the locking hook (5) and the pin shaft (7). An anti-loosing block is used for preventing the loosing of a connecting bolt of the point rail and the connecting iron (6). A small gapis left between the head of the locking hook (5) and the connecting iron (6) and is used for arranging the rolling columns (2) that can move up and down at the two sides of the locking hook (5) in themovable nose rail.

Description

The outer locking device of roller

(1) technical field:

The outer locking device of a kind of roller is applicable to the track switch of railway, subway, light rail, and the tongue of track switch is locked in wing rail with stock rail or movable point frogs.

(2) background technology:

The outer locking device of existing railway switch, outer locking device of dovetail type and the outer locking device of hook-type are arranged, the outer locking device of dovetail type uses in the railway speed increase in early days in a large number, owing to adjust difficulty, serious wear, stressed unreasonablely eliminated gradually, the outer locking device of the hook-type that uses generally adopts on railway switch at present, but also there are phenomenons such as volume is big, big, the release conversion jam of taking up room, operation is affected, and since crucial stressed wear-out part scantling of structure excessive be unfavorable for carrying out PROCESS FOR TREATMENT or PROCESS FOR TREATMENT uneconomical.

(3) summary of the invention:

The outer locking device of the utility model roller, technical matters to be solved is: provide a kind of simple and reasonable, take up room for a short time, adopt the material treatment process of economical rationality, improve its service life; The outer locking device of roller is improved to friction of rolling by cliding friction between the parts of relative motion in release, conversion, locking process; Appropriate design latch hook and the gap that is connected between iron are realized bearing pin standby redundancy purpose; Adopt the oscillating bearing design to adapt to creeping, swinging of track switch moving part; Design roller latch post overcomes latch hook and can fall any more or fall the shortcoming that has some setbacks when having reduced loss to the switch machine traverse, release when realizing locking.Can overcome the jam in track switch release, conversion, the locking process, be a kind of safe, reliable, novel outer locking device that socialbenefit and economic effect is good.

The purpose of the outer locking device of the utility model roller can realize by following measure: the outer locking device of a kind of roller, constitute by locking frame, locking iron, latch hook, roller, oscillating bearing, when being installed on track switch and going up can with the supporting use of existing conversion equipment.It is characterized in that: roller places in the chamber, latch hook side, latch hook is concavo-convex the connection with the locking plate, the projection of latch hook embeds in the locking plate groove, reduced upright to size, compressed the space that takies sleeper, latch hook by bearing pin be connected iron and point tongue links together, constitute the outer locking device of roller.Locking frame sidepiece and bottom and locking plate are friction of rolling.The oil-free self lubrication oscillating bearing is equipped with in the junction of latch hook head and bearing pin.Tongue be connected the iron tie bolt locking anti-loose spot is housed.The latch hook head has little gap with being connected between the iron, between latch hook and locking iron little gap is arranged.When being used for movable point frogs, the both sides of whole latch hook are equipped with and can be moved up and down moving roller, and the movable point frogs of track switch is locked in wing rail.

The present invention has following characteristics compared to existing technology:

1, the outer locking apparatus structure of roller is simple, can carry out material economically and handle and reach safety, reliable, purpose that the life-span is long;

2, in release, conversion, locking process, be improved to friction of rolling by cliding friction between the parts of relative motion;

3, little to the loss of the traverse of switch machine, or same switch machine traverse can realize bigger locking amount, and safety is better;

4, latch hook is connected with the convex-concave that is combined into of locking plate, has compressed the space of stereo directional, helps realizing the integrated design of conversion equipment, outer locking device and sleeper;

5, can adapt to the track switch movable point frogs creep and switching process in the swing of tongue, overcome the inertial defect of existing equipment.

6, the movable parts in the external locking device of energy is realized dustproof, snow defence effect, reduces maintenance workload.

(4) description of drawings

Fig. 1 is installed on the front view of point tongue for the outer locking device of the utility model roller

Fig. 2 is installed on the birds-eye view of point tongue for the outer locking device of the utility model roller

Fig. 3 is installed on the scheme drawing of track switch movable point frogs for the outer locking device of the utility model roller

(5) specific embodiment:

Below in conjunction with accompanying drawing the enforcement that the outer locking device of the utility model roller is installed on point tongue is provided specific embodiment, be described in further detail: the outer locking device of a kind of roller, constitute by locking frame, locking iron, latch hook, roller, oscillating bearing, it is characterized in that: roller 2 places in the latch hook 5 side chambeies, latch hook 5 is concavo-convex the connection with locking plate 1, the projection of latch hook 5 embeds in locking plate 1 groove, latch hook 5 by bearing pin 7 be connected iron 6 and link together with point tongue, constitute the outer locking device of roller.Locking frame 4 sidepieces and bottom and locking plate 1 are friction of rolling.The oil-free self lubrication oscillating bearing is equipped with in the junction of latch hook 5 heads and bearing pin 7.Tongue be connected iron 6 tie bolts locking anti-loose spot is housed.Latch hook 5 heads have little gap with being connected between the iron 6.When being used for movable point frogs, roller 2 moving up and down is equipped with in the both sides of latch hook 5.

Claims

1. the outer locking device of a roller, constitute by locking frame, locking iron, latch hook, roller, oscillating bearing, it is characterized in that: roller (2) places in the square chamber of latch hook (5), latch hook (5) is concavo-convex the connection with locking plate (1), the projection of latch hook (5) embeds in locking plate (1) groove, latch hook (5) by bearing pin (7) be connected iron (6) and point tongue and link together, constitute the outer locking device of roller.

2. according to the outer locking device of the described a kind of roller of claim 1, it is characterized in that: locking frame (4) sidepiece and bottom and locking plate (1) are friction of rolling.

3. according to the outer locking device of the described a kind of roller of claim 1, it is characterized in that: the oil-free self lubrication oscillating bearing is equipped with in the junction of latch hook (5) head and bearing pin (7).

4. according to the outer locking device of the described a kind of roller of claim 1, it is characterized in that: tongue be connected iron (6) tie bolt locking anti-loose spot is housed.

5. according to the outer locking device of the described a kind of roller of claim 1, it is characterized in that: latch hook (5) head has little gap with being connected between the iron (6).

6. according to the outer locking device of the described a kind of roller of claim 1, it is characterized in that: when being used for movable point frogs, roller moving up and down (2) is equipped with in the both sides of latch hook (5).