CN201801789U

CN201801789U - Roller device used for movable point rail

Info

Publication number: CN201801789U
Application number: CN2010202903787U
Authority: CN
Inventors: 刘皓; 罗震; 蒋荣国
Original assignee: Track Switch Branch of China Railway Track Systems Group Co Ltd
Current assignee: China Railway Construction Heavy Industry Group Co Ltd
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2011-04-20
Anticipated expiration: 2020-08-13

Abstract

The utility model provides a roller device used for a movable point rail, which comprises a sliding plate, wherein the movable point rail is arranged on the sliding plate. The utility model is characterized in that a roller used for the movable point rail is arranged inside the sliding plate; the sliding plate can slide relative to the roller used for the movable point rail; and the roller used for the movable point rail comprises a support, a rotating frame, a tilted shaft, a left-side roller and a right-side roller; the support is mounted below the rotating frame; the middle part of the rotating frame is mounted on the support through the tilted shaft; the rotating frame can vertically swing on the support relative to the tilted shaft as the center; and the left-side roller and the right-side roller are arranged on the roller shafts at the two ends of the rotating frame respectively and can rotate around the roller shafts as center respectively. The key point of the utility model is that: the roller device used for the movable point rail achieves the purpose of switching the rolling mode of the movable point rail, and is simple in structure and feasible.

Description

The movable point frogs roller apparatus

Technical field:

The utility model relates to a kind of railroad track accessory, be a kind of movable point frogs roller apparatus specifically, partly use at the track switch movable point frogs, can change the sliding friction of heart rail in transfer process into rolling friction, help reducing the conversion resistance force of movable point frogs.

Background technology:

The heart rail of movable-point crossing can contact respectively at the both sides wing rail by conversion in the wing rail framework, thereby kept vehicle continuous by the path of direction, eliminated the idle space of fixed railway frog, improved safety and comfortableness that vehicle passes through, China railways speed-raising and high-speed switch all adopt the structural shape of movable-point crossing.

Traditional structure is to adopt slide construction, and for sliding bed platen (2) is supporting movable point frogs (1), movable point frogs slides on its surface, realizes the conversion (see figure 1) of both sides.This kind structure heart rail is sliding friction in transfer process, frictional force is relatively large, and component have wearing and tearing simultaneously.Therefore necessary this is further improved.

The utility model content

The purpose of this utility model is exactly at the deficiency of existing movable point frogs with running roller, for reducing or avoiding the sliding friction of movable point frogs in transfer process, provides a kind of frictional force littler movable point frogs running roller.

The purpose of this utility model is achieved through the following technical solutions, and a kind of movable point frogs roller apparatus comprises a sliding panel, movable point frogs is placed on the sliding panel, its characteristics are, the movable point frogs running roller is installed in the sliding panel, and sliding panel movable point frogs relatively slides with running roller; Movable point frogs comprises bearing, rotating turret, sticks up axle, left side running roller and right side running roller with running roller.Bearing is installed under the rotating turret, the middle part of rotating turret is installed on the bearing by sticking up axle, rotating turret can stick up axle and swing up and down for both sides on bearing, center, and left side running roller and right side running roller are installed in respectively on the roller shaft at rotating turret two ends, can be respectively that rotate at the center with the roller shaft.

The beneficial effects of the utility model are: this movable point frogs is to have realized the conversion of the roll mode of movable point frogs with the key of running roller invention, and is simple in structure feasible.

Description of drawings:

Fig. 1 is the heart rail structural representation of existing common movable-point crossing;

Fig. 2 is the utility model structure structural representation;

Fig. 3 is the utility model operating mode two schematic diagrames;

Fig. 4 is the utility model operating mode three schematic diagrames.

Among the figure: 1, movable point frogs, 2, sliding panel, 3, roller shaft, 4, the left side running roller, 5, stick up axle, 6, bearing, 7, rotating turret; 8, right side running roller.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

Embodiment one

As shown in Figure 2, a kind of movable point frogs roller apparatus comprises a sliding panel 2, and movable point frogs 1 is placed on the sliding panel 2, and its characteristics are, the movable point frogs running roller is installed in the sliding panel 2, and sliding panel movable point frogs relatively slides with running roller; Movable point frogs comprises bearing 6, rotating turret 7, sticks up axle 5, left side running roller 4 and and right side running roller 8 with running roller.Bearing 6 is installed in rotating turret 7 times, and the middle part of rotating turret 75 is installed on the bearing 6 by sticking up axle, and rotating turret 7 can stick up axle 5 and swing up and down on both sides on bearing 6 for the center; Left side running roller 4 and right side running roller 8 are installed in respectively on the roller shaft 3 at rotating turret 7 two ends, can be that rotate at the center with roller shaft 3 respectively.

Operating principle of the present utility model is:

1) movable point frogs 1 is when the station of left side, during as Fig. 2 (operating mode one), movable point frogs 1 bottom contacts with sliding bed platen 2, and the left side running roller 4 on the left of this moment is in the movable point frogs bottom, and the right side running roller 8 on right side does not contact (gap is not more than 1mm) with movable point frogs 1 bottom.

2) movable point frogs is in by left side dislocation process to the right, during as Fig. 3 (operating mode two), movable point frogs 1 contact also presses down right side running roller 8, rotating turret 7 turns clockwise, drive left side running roller 4 liftings, thereby under the support of left side running roller 4 and right side running roller 8, make movable point frogs 1 by from sliding bed platen 2 surperficial lifting certain height h, after this left side running roller 4 and right side running roller 8 supports movable point frogs 1 in the mode of rolling and is transformed into the right side by the left side, avoided the sliding friction that contacts between movable point frogs 1 and the sliding platen 2.

3) after movable point frogs is transformed into right positions, during as Fig. 4 (operating mode three), running roller 4 disengagings in left side contact with movable point frogs 1 bottom, rotating turret 7 disequilibriums, right side running roller 8 descends under the effect of heart rail gravity, movable point frogs 1 is no longer supported by left side running roller 4 and right side running roller 8, contacts with a sliding bed platen 2 after movable point frogs 1 descends.

When 4) changing to the left by the right side, then according to above-mentioned 3 as movable point frogs 1) → 2) → 1) the operating mode inverted running.

Claims

1. a movable point frogs roller apparatus comprises a sliding panel (2), and movable point frogs (1) is placed on the sliding panel (2), it is characterized in that: sliding panel is equipped with the movable point frogs running roller in (2), and sliding panel movable point frogs relatively slides with running roller.

2. a kind of movable point frogs roller apparatus as claimed in claim 1 is characterized in that: movable point frogs with running roller comprise bearing (6), rotating turret (7), stick up axle (5), left side running roller (4) and and right side running roller (8); Bearing (6) is installed under the rotating turret (7), the middle part of rotating turret (7) is installed on the bearing (6) by sticking up axle (5), rotating turret (7) can stick up axle (5) and upward swing up and down on both sides at bearing (6) for the center, left side running roller (4) and right side running roller (8) are installed in respectively on the roller shaft (3) at rotating turret (7) two ends, can be that rotate at the center with roller shaft (3) respectively.