CN114148375B

CN114148375B - Switch switching device of buried switch machine

Info

Publication number: CN114148375B
Application number: CN202111361013.8A
Authority: CN
Inventors: 袁璐莹; 陈挺; 蒉凯腾; 李金海; 高阳
Original assignee: CRSC Wanquan Signaling Equipment Co Ltd
Current assignee: CRSC Wanquan Signaling Equipment Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2024-01-16
Anticipated expiration: 2041-11-17
Also published as: CN114148375A

Abstract

The invention discloses a turnout switching device of an underground switch machine, and relates to the field of mechanical structures of switch machines. The utility model provides a buried switch machine switch conversion equipment, includes shift fork mechanism, shift fork mechanism includes initiative shift fork, sliding component and shift fork, initiative shift fork and sliding component roll connection, initiative shift fork upper key is connected with the main shaft. Through the slider shift fork structure, the loss of components in the operation process is reduced, the service life of the switch machine is prolonged, meanwhile, the stability of workers in the operation process is guaranteed, the pulling angle and the space occupancy are reduced, and the quality of switch conversion is improved.

Description

Switch switching device of buried switch machine

Technical Field

The invention relates to the field of mechanical structures of point machines, in particular to a turnout switching device of an underground point machine.

Background

The switch machine is a special equipment for railway, underground railway and urban railway traffic station and is used for centralized control and switch. It is able to switch and lock the switch point rail or core rail and at the same time give a position indication of the corresponding switch point rail or core rail. The switch machine needs to be manually switched when being adjusted, overhauled or failed. However, the existing switch machine turnout switching device adopts a gear rack type, a crank is needed to stretch into a shell in operation or daily maintenance, and the crank is used to drive the gear rack to be meshed to drive a motor spindle to rotate, so that the switch is switched, in the repeated meshing process, the abrasion of gears is aggravated, the whole service life of a manual operating mechanism is reduced, the production cost is increased, and a larger angle is needed to be pulled in the use process to switch the turnout.

Disclosure of Invention

In view of the above, the invention provides a switch switching device of an underground switch machine, which effectively solves the problems of low service life, large pulling angle and large space occupation rate of the switch switching device of the switch machine in the background technology.

The turnout switching device of the underground switch machine comprises a sliding component, a shifting fork, a driving shifting fork and a main shaft, wherein the driving shifting fork is in rolling connection with the sliding component, the shifting fork is in rolling connection with the sliding component, and the main shaft is connected with an upper key of the driving shifting fork.

Further, the sliding component comprises a fixed block, a sliding block and a sliding rail, wherein the fixed block is fixedly connected to the sliding block, the sliding block is matched with the sliding block to freely slide on the periphery of the sliding rail, rollers are arranged on two sides of the fixed block, and the sliding rail is fixed on the crust of the switch machine.

Further, the two ends of the shifting fork are provided with U-shaped openings, a roller wheel on one side of the fixed block is in rolling connection with the opening of the shifting fork, a flange shaft is arranged in the middle of the shifting fork, and the shifting fork freely rotates around the flange shaft.

Further, the lower extreme of initiative shift fork is provided with U type opening, the gyro wheel of the opposite side of fixed block with the opening roll connection, the open-ended upper end is provided with the splined hole, the one end fixed connection of main shaft is in the splined hole.

According to the working principle of the invention, when the switch is actually used, the active shifting fork is driven to synchronously rotate, then the active shifting fork drives the fixed block and the sliding block to slide on the sliding rail, the sliding of the fixed block drives the shifting fork to rotate, so that the shifting fork is driven to rotate around the flange shaft, the other end of the shifting fork is connected with the switch machine action rod, and the rotation of the shifting fork drives the switch machine action rod to move, so that the switch is switched.

The switch conversion device of the buried switch machine has the beneficial effects that:

1. the invention reduces the loss of parts in the operation process and prolongs the service life of the switch machine through the sliding rail and the sliding block;

2. the sliding block shifting fork type ensures the stability of staff in the operation process, reduces the pulling angle and the space occupation ratio, and improves the quality of turnout switching.

Drawings

The invention will be described in further detail with reference to the accompanying drawings and detailed description.

FIG. 1 is a schematic diagram of the whole structure of a switch switching device of an underground switch machine according to the present invention;

FIG. 2 is a schematic view of the structure of a fixed block of a switch switching device of an underground switch machine according to the present invention;

FIG. 3 is a top view of a fixed block of a switch gear of an underground switch machine according to the present invention;

FIG. 4 is a right side view of a fixed block of a switch device of an underground switch machine according to the present invention;

FIG. 5 is a schematic view of an active fork of a switch gear of an underground switch machine according to the present invention;

FIG. 6 is a schematic view of a fork structure of a switch switching device of a buried switch machine according to the present invention;

FIG. 7 is a top view of a flange shaft of a switch gear of a buried switch machine according to the present invention;

fig. 8 is a left side view of a flange shaft of a switch gear of a buried switch machine according to the present invention.

In the figure:

a shifting fork 1; a fixed block 2; a slider 3; a slide rail 4; a driving fork 5; a main shaft 6; a first roller 7; and a second roller 8.

Detailed Description

The switch switching device of the underground switch machine provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the conversion device comprises a shifting fork 1, a fixed block 2, a sliding block 3, a sliding rail 4, a driving shifting fork 5, a main shaft 6, a first roller 7 and a second roller 8. The sliding block 3 is sleeved on the periphery of the sliding rail 4, the sliding block 3 is connected below the fixed block 2 through a screw, the right end of the fixed block 2 is connected with the driving shifting fork 4, the left end of the fixed block is connected with the shifting fork, and one end key of the driving shifting fork 4 is connected with the main shaft.

For the purpose of reducing abrasion and prolonging service life, as shown in fig. 1, the device uses a sliding block shifting fork mechanism, the driving shifting fork is driven to do circular motion through rotation of the main shaft, and the driving shifting fork is rotated to drive the sliding block to move on the sliding rail, so that the shifting fork is driven to rotate.

It should be pointed out that, this application is provided with 4 screw holes as shown in fig. 2-4 above the fixed block, and the fixed block passes through screw fixed connection with the slider, and such fixed connection can make slider and fixed block slide on the slide rail in step when the slider receives the effect of force, and the right side of fixed block is provided with first gyro wheel, and first gyro wheel is on the right side of fixed block through screw connection, and first gyro wheel and initiative pull out plug roll connection. The fixed block left side upper end department is provided with the trompil, has the second gyro wheel through the screw connection in the trompil, see fig. 5, and the lower extreme of initiative shift fork is provided with the U type and opens the fork, and the U type is opened fork and first gyro wheel roll connection, and first gyro wheel can freely roll in the U type is opened fork, and the spline hole has been seted up to the upper end that the U type opened fork, and the fixed connection of the one end looks adaptation of main shaft is in the spline mouth, and this kind of design mode has reduced the loss at each spare part in the operation in-process, almost can exempt from the maintenance.

Referring to fig. 6, the two ends of the shifting fork are provided with the U-shaped openings, the right U-shaped opening of the shifting fork is slidably connected with the second roller, the second roller can also freely move in the U-shaped opening, and the left U-shaped opening is connected with the action rod of the switch machine. Referring to fig. 7 to 8, a flange shaft is provided at a middle position of the fork, and the fork is freely rotated around the flange shaft.

In addition, slide rail and flange axle in this application are all fixed on the crust of switch machine, and this switching device also sets up in the crust of switch machine, and compared with prior art, this device adopts the structure of slider shift fork, has reduced the space occupation of device, simple installation, performance safe and reliable, need not to open switch machine crust, also need not the operating personnel and go into the underground tunnel of underground switch machine and operate, thereby directly drive the main shaft through pulling outside and drive initiative shift fork and do circular motion and drive the shift fork rotation that the slider motion makes to connect on the fixed block, can pull switch machine to change switch.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The turnout switching device of the underground switch machine is characterized by comprising a shifting fork mechanism, wherein the shifting fork mechanism comprises a driving shifting fork, a sliding component and a shifting fork, the driving shifting fork is in rolling connection with the sliding component, the shifting fork is in rolling connection with the sliding component, and a main shaft is connected with an upper key of the driving shifting fork; the sliding assembly comprises a fixed block, a sliding block and a sliding rail, wherein the sliding block is sleeved on the periphery of the sliding rail in a matched manner, and the fixed block is fixedly arranged on the sliding block; one end of the fixed block is fixedly connected with a first roller, and the other end of the fixed block is fixedly connected with a second roller; the lower end of the driving shifting fork is provided with a first U-shaped split matched with the first roller; the two ends of the shifting fork are provided with second U-shaped forks, and the second roller is in rolling connection with the second U-shaped forks at one end of the shifting fork.

2. The switch-over device of claim 1, wherein the first roller is perpendicular to the second roller.

3. The switch switching device of an underground switch machine according to claim 1, wherein the driving fork is provided with a spline hole, the spline hole is positioned above the U-shaped fork, and one end of the main shaft is fixedly connected in the spline hole in an adaptive manner.

4. The switch switching device of an underground switch machine according to claim 1, wherein a fork shaft is movably provided at a middle position of the fork through a rolling bearing.