CN214028660U

CN214028660U - Track deviation detection device

Info

Publication number: CN214028660U
Application number: CN202022851159.8U
Authority: CN
Inventors: 李宁; 王广东; 张慧; 杨玉勇; 祖晓阳; 朱智源; 李文强; 佀朋; 董为为; 孙鑫
Original assignee: Xuzhou China United Cement Co Ltd
Current assignee: Xuzhou China United Cement Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-24
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses a track skew detection device, including the PLC switch board, power L1, install in the engineering machine tool car with proximity switch SQ1 on the same side wheel, SQ2, SQ3, SQ4, wherein, proximity switch SQ1, SQ3 installs the both sides at first group wheel respectively as a set of, proximity switch SQ2, SQ4 installs respectively in second group wheel both sides as a set of, still include intermediate relay K1 and intermediate relay K3 that are used for detecting the skew of first group wheel, intermediate relay K2 and intermediate relay K4 for detecting the skew of second group wheel; whether the switching value input module of a PLC controller in the PLC control cabinet can receive a received signal or not is detected, and whether the parallel direction of the whole engineering machinery and the track deviates or not is detected. The invention can accurately detect whether the parallel direction of the whole engineering machinery and the track deviates or not.

Description

Track deviation detection device

Technical Field

The utility model relates to a detection device specifically is a track skew detection device, belongs to track detection technology field.

Background

The bridge reclaimer is used for pre-homogenizing certain production raw materials with high homogenization performance. The track gauge of the existing bridge type scraper reclaimer is 38 meters, and the driving mechanisms on two sides of the bridge type reclaimer are difficult to ensure that the track speeds of all wheels are completely consistent when the bridge type reclaimer works, so that the integral traveling direction of the whole vehicle and a track form a certain included angle, collision and friction (commonly called rail gnawing) between the inner side of a wheel rim and the side surface of the track are further caused, the inner side of the wheel rim is abraded for a long time, and the service life of the wheel is shortened; and the phenomenon that wheels climb onto the track and the cart falls off the track is also easily caused, and the stable operation of the equipment is seriously influenced. However, the currently used deviation rectifying system of the bridge type scraper reclaimer only detects whether the whole vehicle is deviated in the direction perpendicular to the rail, but cannot detect the displacement (deviation) of the whole vehicle in the direction parallel to the rail.

Disclosure of Invention

To the problem that above-mentioned prior art exists, the utility model provides a track skew detection device can accurately detect out the whole car of engineering machine tool and whether the track parallel direction sends the skew.

In order to achieve the above object, the present invention provides a rail deviation detecting device, including a PLC control cabinet, a power supply L1, proximity switches SQ1, SQ2, SQ3, SQ4 installed on wheels on the same side of a construction machinery vehicle, wherein the proximity switches SQ1, SQ3 are installed as a set on both sides of a first set of wheels, the proximity switches SQ2, SQ4 are installed as a set on both sides of a second set of wheels, the device further includes an intermediate relay K1 and an intermediate relay K3 for detecting deviation of the first set of wheels, an intermediate relay K2 and an intermediate relay K4 for detecting deviation of the second set of wheels;

a power supply L1, intermediate relays K1, K2, K3 and K4 are installed in a PLC control cabinet, a power supply L1 is respectively connected to normally open point input ends of proximity switches SQ1, SQ2, SQ3 and SQ4, an output end of the power supply L1 is respectively connected with one ends of coils of the intermediate relays K1, K2, K3 and K4, and the other ends of the coils of the intermediate relays K1, K2, K3 and K4 are connected with N; a COM power supply of a PLC controller in the PLC control cabinet is sequentially connected with a switching value input module DI1 through an auxiliary normally closed contact K1-1 of an intermediate relay K1 and an auxiliary normally closed contact K3-1 of an intermediate relay K3; a COM power supply of a PLC in the PLC control cabinet is sequentially connected with a switching value input module DI2 through an auxiliary normally closed contact K2-1 of an intermediate relay K2 and an auxiliary normally closed contact K4-1 of an intermediate relay K4.

Preferably, the proximity switches SQ1, SQ2, SQ3 and SQ4 are double-california inductance type proximity switches, and the proximity switches SQ1, SQ2, SQ3 and SQ4 are respectively provided with one core of a four-core signal cable as an "L" wire, one core is connected with the intermediate relays K1, K2, K3 and K4, and the other two cores are spare.

Preferably, the PLC controller is of the type Siemens 6ES 7314-1 AG14-0AB 0.

Compared with the prior art, the utility model discloses an accurate timely detection goes out whole car and track parallel direction's displacement (skew) to give PLC controller in the PLC switch board with the signal transmission, after the PLC controller received the signal, the action of rectifying in time.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention;

fig. 2 is a schematic view showing the installation positions of proximity switches SQ1 and SQ3 according to the present invention;

fig. 3 is a schematic view showing the installation positions of proximity switches SQ2 and SQ4 according to the present invention.

In the figure: 1. bridge type scraper reclaimer, 2, wheel, 3, track.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a track skew detection device, including the PLC switch board, power L1, install proximity switch SQ1, SQ2, SQ3, SQ4 on the same side wheel 2 of bridge type scraper blade reclaimer 1, wherein, proximity switch SQ1, SQ3 install respectively in the both sides of first group wheel 2 as a set of, proximity switch SQ2, SQ4 install respectively in the both sides of second group wheel 2 as a set of, still include intermediate relay K1 and intermediate relay K3 that are used for detecting the skew of first group wheel 2, intermediate relay K2 and intermediate relay K4 that are used for detecting the skew of second group wheel 2;

a control cable is added in a PLC control cabinet, a power supply L1, intermediate relays K1, K2, K3 and K4 are installed in the PLC control cabinet, a power supply L1 is respectively connected to the normally open input ends of proximity switches SQ1, SQ2, SQ3 and SQ4, the output ends of the normally open input ends are respectively connected to one ends of coils of the intermediate relays K1, K2, K3 and K4, and the other ends of the coils of the intermediate relays K1, K2, K3 and K4 are connected to N; a COM power supply of a PLC controller in the PLC control cabinet is sequentially connected with a switching value input module DI1 through an auxiliary normally closed contact K1-1 of an intermediate relay K1 and an auxiliary normally closed contact K3-1 of an intermediate relay K3; a COM power supply of a PLC in the PLC control cabinet is sequentially connected with a switching value input module DI2 through an auxiliary normally closed contact K2-1 of an intermediate relay K2 and an auxiliary normally closed contact K4-1 of an intermediate relay K4.

As a preferable mode of the present invention for the above-described mode, the proximity switches SQ1, SQ2, SQ3, and SQ4 employ a double calif inductance type proximity switch, and the proximity switches SQ1, SQ2, SQ3, and SQ4 each use one core of a four-core signal cable as an "L" line, one core is connected to the intermediate relays K1, K2, K3, and K4, and the other two cores are provided as a backup.

As the utility model discloses to above-mentioned technical scheme's preferred scheme, the PLC controller model is siemens 6ES7

314-1AG14-0AB0。

When the bridge type scraper reclaimer 1 is normal, the approach switches on the two sides of the wheel 2 do not act, a PLC controller COM power supply in the PLC control cabinet returns to a switching value input module DI1 of the PLC control cabinet from K1-1 and K3-1 through the auxiliary normally-closed points of the intermediate relays K1 and K3, and returns to a switching value input module DI2 of the PLC control cabinet through the auxiliary normally-closed points K2-1 and K4-1 of the intermediate relays K2 and K4.

For example, when the bridge type scraper reclaimer 1 inclines to the south, the proximity switches SQ1 and SQ2 detect the rail and send out signals, the normally closed point of the proximity switch SQ1 is opened, the normally open point is closed, the power supply L1 sends to the coil of the intermediate relay K1, the coil of the intermediate relay K1 is electrified, the intermediate relay K1 assists the normally closed contact K1-1 to be opened, and the digital input signal DI1 of the PLC is lost. The normally closed point of the proximity switch SQ2 is disconnected, the normally open point is closed, the power supply L1 is sent to the intermediate relay K2 coil, the intermediate relay K2 coil is electrified, the auxiliary normally closed contact K2-1 of the intermediate relay K2 is disconnected, the digital quantity input signal DI2 of the PLC is lost, the PLC judges that the bridge type scraper reclaimer 1 deflects, and therefore the deviation between the bridge type scraper reclaimer 1 and the track 3 in the horizontal direction is detected, and the bridge type scraper reclaimer enters a deviation rectifying device to rectify deviation.

When the bridge type scraper reclaimer 1 inclines to the north side, the proximity switches SQ3 and S4 detect the rail and send signals, the normally closed point of the proximity switch SQ3 is disconnected, the normally open point is closed, the power supply L1 sends the coil of the intermediate relay K3, the coil of the intermediate relay K3 is electrified, the auxiliary normally closed contact K3-1 is disconnected, and the digital quantity input signal DI1 of the PLC is lost. The normally closed point of the proximity switch SQ4 is disconnected, the normally open point is closed, the coil of the intermediate relay K4 is electrified, the auxiliary normally closed contact K4-1 is disconnected, the digital quantity input signal DI2 of the PLC is lost, the PLC controller judges the deflection of the bridge type scraper reclaimer 1 and controls the walking frequency converter of the bridge type scraper reclaimer 1 to adjust the position of the wheel 2 of the bridge type scraper reclaimer 1 through calculation, and therefore deviation correction is conducted.

Claims

1. The rail deviation detection device is characterized by comprising a PLC control cabinet, a power supply L1, proximity switches SQ1, SQ2, SQ3 and SQ4 which are arranged on wheels (2) on the same side of a construction machinery vehicle, wherein the proximity switches SQ1 and SQ3 are respectively arranged on two sides of a first group of wheels (2) as a group, the proximity switches SQ2 and SQ4 are respectively arranged on two sides of a second group of wheels (2) as a group, the rail deviation detection device also comprises an intermediate relay K1 and an intermediate relay K3 which are used for detecting the deviation of the first group of wheels (2), and an intermediate relay K2 and an intermediate relay K4 which are used for detecting the deviation of the second group of wheels (2);

2. The track deviation detection device according to claim 1, wherein the proximity switches SQ1, SQ2, SQ3 and SQ4 are inductive proximity switches, and the proximity switches SQ1, SQ2, SQ3 and SQ4 are respectively provided with one core of a four-core signal cable as an "L" line, one core connected to the intermediate relays K1, K2, K3 and K4, and the other two cores as backup.

3. A track deviation detecting device as claimed in claim 1 or 2, wherein the PLC controller is of the type siemens 6ES 7314-1 AG14-0AB 0.