CN211196207U

CN211196207U - Indication unit for switch machine

Info

Publication number: CN211196207U
Application number: CN201921491775.8U
Authority: CN
Inventors: 李伟; 赵赛云; 彭艳龙
Original assignee: Hebei Ruiwei Railway Technology Co ltd; BEIJING GUOXING LIDE NEW MATERIAL TECHNOLOGY CO LTD
Current assignee: Hebei Ruiwei Railway Technology Co ltd; BEIJING GUOXING LIDE NEW MATERIAL TECHNOLOGY CO LTD
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-08-07
Anticipated expiration: 2029-09-09

Abstract

The utility model relates to a representation unit for a switch machine, which comprises a transmission shaft and an action rod; the actuating rod is synchronously provided with an actuating plate, the ports at the two ends of the actuating plate are movably provided with actuating pieces, a transmission shaft synchronously arranged on the actuating pieces is in transmission connection with a rotating contact, the rotating contact is in selective electric contact with a contact in a contact group, the bottom of the rotating contact is connected with a locking column through a structural part, and the locking column is locked with a notch of the indicating rod. The utility model discloses a show unit for switch machine, this mechanism is including accepting the method of switch machine drive mechanism, special contact group and the connected mode of electric contact. The unit can accurately complete the action sequence of the switch machine specified by the national standard, and reliably connect the action circuit of the switch machine and the circuit for indicating the position of the switch point. When the accident of squeezing the switch occurs, the switch indication circuit is reliably cut off.

Description

Indication unit for switch machine

Technical Field

The utility model relates to a railway switch machine and be used for showing the electric contact group of switch blade position, especially a show unit for switch machine.

Background

The switch machine switches the switch points, locks the points and indicates the point position safety equipment. The indicating mechanism of the switch machine has inseparable relation with the power, transmission and locking mechanism, and is an important component of the safety performance of the switch machine. At present, the current status of the representation system of the turnout switch machine in China is as follows:

the system has poor mechanical transmission stability, large position change between the movable contact and the static contact, inconsistent and dynamic elastic deformation borne by the two static contact pieces due to errors of machining and assembling, and the contact area of the contact ring and the contact pieces can be changed every time. Therefore, the constant change in contact resistance further degrades the reliability of the contact, and the user has to perform periodic maintenance and troubleshooting.

Over the years, numerous manufacturers have made various improvements and applications, but none have ultimately solved the failure and maintenance issues in the application.

At present, the safety protection of the turnout switching system in China on the turnout squeezing has the following method:

the point switch has one extruding and cutting device inside the point switch, and when the wheel is extruded to switch, the extruding and cutting pin in the device is disconnected and the indicating circuit is cut off to protect the extruded switch. Therefore, the failure of the pinch-off pin to not pinch off by itself frequently occurs.

And secondly, a special mechanism for squeezing the switch is arranged in the point switch, and a special connecting device is arranged on the mounting device, so that the mechanism in the point switch is increased, the complexity of the mounting device is increased, the switch tie space is occupied, and the difficulty is increased for line maintenance.

And thirdly, arranging a close contact inspection device at the switch point of the turnout switch rail, wherein the close contact inspection device is used for inspecting the close contact state of the switch rail and finishing the function of indicating the extruded turnout, and the turnout switch rail with a small number only having one switching point cannot be installed due to serious insufficient space.

Disclosure of Invention

The utility model discloses the technical problem that needs solve provides the action order that the accurate national standard regulation goat of accomplishing of this unit, the action circuit of reliably putting through the goat and the expression unit that is used for the switch goat of showing switch tongue position circuit.

In order to solve the technical problem, the utility model provides a display unit for a turnout switch machine, which comprises a transmission shaft and an action rod; the actuating rod is synchronously provided with an actuating plate, the ports at the two ends of the actuating plate are provided with actuating pieces, a transmission shaft synchronously arranged on the actuating pieces is in transmission connection with a rotating contact, the rotating contact is in selective electric contact with a contact in a contact group, the bottom of the rotating contact is connected with a locking column through a structural part, and the locking column is locked with a notch of the indicating rod.

Further, a spring is arranged at the tail end of the rotating joint.

Further, the indicating rod includes a close contact side indicating rod and a repulsive separation side indicating rod.

Furthermore, the bottom of the locking column is provided with a translational fit with the repulsion indicating rod notch.

After the structure is adopted, the utility model discloses a show unit for switch machine, this mechanism is including accepting method, special contact group and the interior electric contact's of switch machine connected mode of switch machine drive mechanism. The unit can accurately complete the action sequence of the switch machine specified by the national standard, and reliably connect the action circuit of the switch machine and the circuit for indicating the position of the switch point. When the accident of squeezing the switch occurs, the switch indication circuit is reliably cut off.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of a presentation unit for a point machine according to the present invention.

Fig. 2 is a schematic diagram of a quick-acting mechanism of a presentation unit for a switch machine according to the present invention.

Fig. 3 a schematic diagram of a unit contact circuit for a point machine.

Fig. 4 shows a presentation unit for a switch machine according to the invention.

In the figure: reference numeral 306 denotes a rotary contact, 305 denotes a propeller shaft, 303 denotes a trigger piece, 304 denotes a lock cylinder, 603 denotes a close contact indicating lever, 604 denotes a repulsive side indicating lever, 307 denotes a spring, 203 denotes an operating lever, and 210 denotes an operating plate.

Detailed Description

As shown in fig. 1, a presentation unit for a point switch machine comprises a transmission shaft and an action rod; the action rod 203 is synchronously provided with an action plate 210, the two end ports of the action plate 210 are movably provided with an actuating sheet 303, a transmission shaft 305 synchronously arranged on the actuating sheet 303 is in transmission connection with a rotary joint 306, the rotary joint 306 is in selective electric contact with a joint in a joint group, the bottom of the rotary joint 306 is connected with a locking column 304 through a transmission piece, and the locking column 304 is locked with a rod indicating notch.

The unit accurately completes the action sequence of the point switch specified by the national standard, immediately disconnects the indication contact after the point switch receives the switch point rail instruction, and provides a circuit contact condition for executing a reverse direction operation instruction; after the switch rail reaches the specified position and is checked by the indicating rod, a circuit for indicating the switch rail position of the turnout is switched on, and an action circuit of the switch machine is switched off; when the accident of squeezing the switch occurs, the switch indication circuit is reliably cut off. The specific implementation is as follows:

as shown in fig. 1, 2 and 3, the rotary joint 306 is provided with a spring 307 at the end. When the switch machine receives a switch switching instruction, the action plate 210 moves rightwards, the upper inclined surface of the action plate 210 pushes the right starting sheet 303 to rotate for a certain angle, and meanwhile, the rotary contact 306 is driven to do corresponding movement, 4 rows of contacts are disconnected, and an original representation circuit is cut off. The action plate 210 continues to move rightwards, after the locking stroke is finished, the left starting sheet 303 quickly falls into the bottom plane of the action plate 210 under the action of the rotary contact tension spring to drive the rotary contact to rotate, the power supply is quickly cut off, and the reverse position is switched on for indication. The action state of the contact group is the same as that of the current turnout control circuit.

As shown in fig. 1 and 4, the indication rod comprises a close contact side indication rod 603 and a repulsion side indication rod 604, and the bottom of the locking column 304 is provided with a translational fit with a notch of the repulsion side indication rod 604.

The close-contact side indicating lever 603 and the repulsive side indicating lever 604 are shown in a locked state. When a branch is crowded, the repulsion side indicating rod 604 moves in the direction shown in the figure according to the motion track of the repulsion switch rail in front of the first traction point, the gap of the repulsion side indicating rod 604 and the lower end of the locking column 304 are both provided with inclined surfaces, and the two inclined surfaces interact with each other to enable the locking column 304 to move upwards to drive the rotating contact to rotate to disconnect the indicating contact, so that the indication of the branch-crowded breaking is realized.

Claims

1. A presentation unit for a point switch machine comprises a transmission shaft and an action rod; the method is characterized in that: the actuating rod (203) is synchronously provided with an actuating plate (210), the ports at two ends of the actuating plate (210) are fixedly provided with actuating sheets (303), a transmission shaft (305) synchronously arranged on the actuating sheets (303) is in transmission connection with a rotary joint (306), the rotary joint (306) is in selective electrical contact with the joints in the joint group, the bottom of the rotary joint (306) is connected with a locking column (304) through a structural member, and the locking column (304) is locked with the indicating rod notch.

2. The presentation unit for a point switch machine as claimed in claim 1, characterized in that: the rotating joint (306) is provided with a spring (307) at the tail end.

3. The presentation unit for a point switch machine as claimed in claim 1, characterized in that: the indication rods comprise close contact side indication rods (603) and repulsion side indication rods (604).

4. A presentation unit for a point switch machine according to claim 3, characterized in that: the bottom of the locking column (304) is in translational fit with the notch of the repellent side display rod (604).