CN2825395Y - Sensor for locomotive employing proximity switch and swing link offsetting structure - Google Patents

Abstract

The utility model relates to a sensor for a locomotive employing a proximity switch and a swing link offsetting structure. The utility model is most suitable for sensing and detecting the position of a wiring electric locomotive on a mine ground surface and under a well. The utility model adopts an offsetting structural mode of a high-sensitive proximity switch and a rubber swing link, wherein a wire card which is fixed by a sensing panel is arranged below the proximity switch; the rubber swing link is provided with an inducting metal block which is corresponding to the axial line of the proximity switch. The locomotive has only mechanical contact but no electric contact, thereby, the problems of machine and electricity are effectively divided. The utility model has the advantages of high motion sensitivity, no signal loss, high safety, small entire sensor size, light weight, no deformation, less maintenance quantity, high reliability, less power consumption and long service life. The utility model has no mechanical abrasion and no impact on a bow collector of the locomotive, and the utility model can design the delay function as a system required to widen signals.

Description

Proximity Offset Locomotive Sensor

Technical field

The utility model relates to a locomotive sensor for approaching deviation, which is especially suitable for detecting and controlling the driving positions of mine ground and underground locomotives.

Background technique

The traction locomotives for mine rail transportation mostly use overhead electric locomotives, that is, most of them are electrified transportation methods. In order to manage and dispatch electric locomotives and give full play to the transportation efficiency of electric locomotives, auxiliary wire sensors are mostly used at present, and relays, resistors, etc. are used to control electric locomotives. It is characterized by simple mechanical structure, easy maintenance, convenient manufacture, and simple circuit principle , When the pantograph of the electric locomotive passes through the auxiliary wire sensor, the pantograph will short-circuit the overhead wire and the auxiliary wire, the relay will act, and the contacts will be closed to achieve the purpose of receiving signals. However, the sensor has the following biggest defects: 1) the signal of the parking space is easy to lose, and there are two reasons for the signal loss; when the locomotive speed is too fast, it is easy to lose the signal when it interacts with the sensor for a short time; the sensor is used for a long time, and the metal surface is rusted Poor contact also causes loss of signal. 2) The large volume of the sensor, mechanical deformation and rust on the surface cause a large amount of maintenance; 3) There is no alarm function when the sensor fails, which is not conducive to the failure analysis of the system.

Contents of Invention

In view of the existing problems in the prior art, the purpose of the utility model is to provide an approaching and offset locomotive sensor with simple structure, high signal sensitivity, less maintenance, and fault alarm function.

The utility model is close to the offset locomotive sensor, which is mainly composed of a high-sensitivity proximity switch and an insulating pendulum on the sensing panel. The proximity switch is set on one side of the sensing panel, and the pendulum is set on the other side of the sensing panel. , The connection between the proximity switch and the sensor panel is provided with a reinforcing block and a Z-shaped connector, the lower part of the Z-shaped connector is provided with a line card for fixing the wire, and the swing rod is provided with an induction metal block corresponding to the axis of the proximity switch.

The utility model is close to the offset type locomotive sensor, the head of the swing rod is hinged on the sensing panel, and the hinge is provided with a rotating shaft which separates the swing rod and the sensing panel at a certain distance. The distance between the rotating shaft on the swing rod and the sensing metal block is less than half of the width of the sensing panel. The insulating swing rod is strip-shaped and made of high-strength rubber. The drooping length of the fork is lower than the stringing position, and the total length is set according to the extended time.

The utility model is close to the offset locomotive sensor, which is most suitable for sensing the position of the electric locomotive on the mine ground and underground. The high-sensitivity proximity switch and the offset structure of the rubber pendulum are used to make the proximity switch output electric pulses. The circuit power supply adopts low-voltage DC 6-30v, and the contact part with the overhead line is made of high-voltage insulating materials. There is only mechanical contact with the locomotive without electricity. Contact, effectively separate the mechanical and electrical problems, thus solving the contradiction between ensuring good mechanical contact and normal flow of sensing circuit current during installation, simplifying the problem handling, high sensitivity, no loss of signal, and safe production Well, the entire sensor is small in size and light in weight, has no mechanical wear on the locomotive pantograph, no impact, no deformation, less maintenance, and high reliability. The delay function can be designed according to the system requirements, the signal can be widened, and the power consumption is small. , long life and wide applicability.

Description of drawings

Fig. 1 is a front view of the structure of the utility model.

Fig. 2 is a side view of the structure of the utility model.

In the figure: 1-wire 2-line card 3-fixing screw 4-positioning screw 5-fastening nut 6-proximity switch 7-lead wire 8-reinforcing block 9-sensing panel 10-rotating shaft 11-rubber bar swing rod 12 -Sensing metal block 13-Connector

Detailed ways

An embodiment of the present utility model will be further described below in conjunction with accompanying drawing:

The utility model is close to the offset locomotive sensor, which includes a line card 2, a fixing screw 3, a positioning screw 4, a fastening nut 5, a proximity switch 6, a lead wire 7, a reinforcing block 8, a sensing panel 9, a rotating shaft 10, and a rubber strip The fork 11, the induction metal block 12, the connector 13 etc. are mainly composed of the high-sensitivity proximity switch 6 and the rubber strip fork 11 arranged on the sensing panel 9. The proximity switch 6 is arranged on one side of the sensing panel 9, and the tail of the proximity switch 6 is provided with a reinforcement block 8, and a complete proximity switch sensor is composed of a fastening nut 5, a proximity switch 6 and a lead wire 7 arranged at the front of the proximity switch 6. , the connection between the proximity switch sensor and the sensing panel 9 is provided with a Z-shaped connector 13, and the reinforcing block 8 and the Z-shaped connector 13 are fixed on the sensing panel 9 through the set screw 4; The fixing screw 3 is fixed on the bottom of the zigzag connector 13 . The rubber strip pendulum 11 is strip-shaped and made of high-strength rubber. It is installed on the other side of the sensing panel 9. The head of the strip rubber pendulum 11 is hinged on the sensing panel 9. The swing rod and the sensing panel are separated from the rotating shaft 10 at a certain distance, and the rubber strip swing rod 11 can move in a circle or a semi-circle with the rotating shaft 10 as the center of the circle. The middle part of the rubber strip swing bar 11 is provided with an induction metal block 12, and the installation position of the induction metal block 12 corresponds to the sensing surface of the proximity switch 6. The distance between the rotating shaft 10 and the sensing metal block 12 is less than half of the width of the sensing panel 9, and the sagging length of the rubber strip pendulum 11 is lower than the position of the stringing 1, and the total length can be increased downwards according to the requirement of the extended time.

Working principle: When no locomotive passes by, the proximity switch outputs a low-level signal. When a wire locomotive passes by, when the pantograph of the locomotive impacts the rubber strip swing rod 11 of the sensor, the rubber strip swing rod 11 will deviate and move along the circular or semicircular direction determined by the fixed rotating shaft 10, and at the same time drive the sensing metal The block 12 moves together, and at this moment, the sensing metal block 12 produces an offset to the sensing surface of the proximity switch, and at this moment, the proximity switch 6 generates a high-level output. After the locomotive passed the sensor, the rubber strip pendulum 11 automatically returned to its original position by its own gravity. At this moment, the proximity switch produced a low-level signal output to complete the detection of the position of the locomotive.

Claims (5)

1. near skew locomotive sensor device, it is characterized in that: it mainly is made of near switch (6) and insulation fork (11) the high sensitivity that is located on the sensing panel (9), be located at sensing panel (9) one sides near switch (6), fork (11) is located at sensing panel (9) opposite side, be provided with boss (8) and zigzag adaptor union (13) near switch (6) and sensing panel (9) connecting portion, the bottom of zigzag adaptor union (13) is provided with the fixedly ply-yarn drill (2) of stringing (1), fork (11) be provided with near switch (6) the corresponding induction derby of axis (12).

2. according to claim 1 it is characterized in that: the head of described fork (11) is hinged on the sensing panel (9) near skew locomotive sensor device, and the hinged place is provided with the rotating shaft (10) that fork and sensing panel are kept at a certain distance away.

3. according to claim 1 and 2 near skew locomotive sensor device, it is characterized in that: the rotating shaft (10) on the described fork (11) with respond to distance between the derby (12) less than half of sensing panel (9) width.

4. according to claim 1 and 2 near skew locomotive sensor device, it is characterized in that: described insulation fork (11) is a strip, is made by high-tenacity rubber.

5. according to claim 1 and 2 near skew locomotive sensor device, it is characterized in that: the sagging length of described fork (11) is lower than stringing (1) position.

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