CN213085239U

CN213085239U - Coal pulverizer crosses rail and hangs anti-misoperation protection device

Info

Publication number: CN213085239U
Application number: CN202021857495.7U
Authority: CN
Inventors: 杨兆彬; 梁栋; 苏永健; 徐义巍; 李彦军; 蒋进爱; 李阳; 侯吉民; 闫建生
Original assignee: Ningxia Jingneng Ningdong Electric Power Co ltd
Current assignee: Ningxia Jingneng Ningdong Electric Power Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-30
Anticipated expiration: 2030-08-31

Abstract

The utility model belongs to the hoist field, concretely relates to coal pulverizer crosses rail and hangs mistake operation protection device. The coal mill comprises a Y track positioned on an overhauling side, an X auxiliary track positioned on a coal mill side, a power vehicle hung below the Y track and an electric hoist hung below the power vehicle; the number of the Y tracks is two, and the Y tracks are arranged in parallel on the same plane; the power vehicle is of an I-shaped structure and is provided with an X main rail, and the X main rail is perpendicular to the Y rail and parallel to the X auxiliary rail. If the proximity inductive switch is disconnected due to the fact that the X main rail and the X auxiliary rail are not centered in the operation process of the electric hoist, the driving motor cannot be started, and therefore the electric hoist is prevented from derailing in the process of leading to the side of the coal mill, and personal safety of field personnel and equipment property safety are guaranteed.

Description

Coal pulverizer crosses rail and hangs anti-misoperation protection device

Technical Field

The utility model belongs to the hoist field, concretely relates to coal pulverizer crosses rail and hangs mistake operation protection device.

Background

The coal mill cross rail crane is a crane special for a coal mill room of a thermal power plant, is different from a common bridge crane, and needs to walk from a main rail of a side bridge crane of an overhaul channel to a side auxiliary rail of the coal mill, so that the operation is more complicated than that of the common crane. The technical level of personnel, whether the equipment has problems or not and the poor working environment on the site all can influence the normal use of the coal mill cross rail crane.

When the electric hoist runs from the main track of the maintenance side power vehicle to the auxiliary track of the coal mill side, the coal mill is frequently over-track hung and derailed, which not only causes damage to hoisted objects and hoisting machinery and influences the maintenance period of the coal mill, but also seriously endangers the personal safety of field personnel.

The main reason for derailing of the coal mill cross-rail crane is that when the electric hoist runs to the auxiliary rail on the side of the coal mill through the main rail on the overhaul side, the main rail and the auxiliary rail are not centered.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem the utility model provides a coal pulverizer crosses rail and hangs mistake operation protection device that prevents, the utility model discloses a realize through following technical scheme.

The utility model provides a coal pulverizer crosses rail and hangs protection device of preventing maloperation which characterized in that includes: the coal grinding machine comprises a Y track positioned on the overhaul side, an X auxiliary track positioned on the coal grinding machine side, a power vehicle hung below the Y track and an electric hoist hung below the power vehicle;

the number of the Y tracks is two, and the Y tracks are arranged in parallel on the same plane;

the power vehicle is of an I-shaped structure and is provided with an X main rail, and the X main rail is perpendicular to the Y rail and parallel to the X auxiliary rail;

the power car is in rolling connection with the Y track;

the electric hoist includes: the electric hoist comprises an electric hoist body, a driving motor, a driving wheel and a driven wheel, wherein the driving wheel and the driven wheel are arranged on an X main rail and are in rolling connection with the X main rail;

the coal mill is characterized by further comprising a proximity inductive switch, wherein the proximity inductive switch is arranged on the electric hoist body, is positioned under the X main rail and is close to one end of the coal mill side, and is electrically connected with the driving motor; when the coal mill needs to be overhauled, the power car runs to the X main rail along the Y rail to be aligned with the X auxiliary rail, and then the electric hoist is guaranteed to normally run to the auxiliary rail on the side of the coal mill.

The device still includes proximity inductive switch, and proximity inductive switch sets up on the electric hoist body to be located X main orbit under, proximity inductive switch and driving motor electric connection.

Furthermore, the front end of the electric hoist body is provided with an L-shaped support, the proximity inductive switch is arranged on the support, and the vertical distance between the proximity inductive switch and the X main track is 10-20 cm.

Further, the support is connected with the electric hoist body through bolts.

Furthermore, the X main track and the X auxiliary track have the same specification, and the track surfaces are on the same plane.

Furthermore, the driving motor is provided with a remote control switch, and the remote control switch, the driving motor and the proximity inductive switch are electrically connected in series.

The utility model has the advantages that: through proximity inductive switch and remote control switch, driving motor series connection, guarantee the operation in-process of electric hoist, if lead to proximity inductive switch disconnection because of X primary orbit and X secondary orbit do not have the centering, then driving motor can't start, and then avoided the electric hoist to go to the accident that the derailment appears in the side in-process of coal pulverizer to the personal safety and the equipment property safety of field personnel have been guaranteed.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic top view of a powered vehicle and an X secondary track;

fig. 3 is a right side view of the electric hoist.

In the figure: the system comprises a Y track 1, a power vehicle 3, an X main track 3-1, an X auxiliary track 4, an electric hoist 5, an electric hoist body 5-1, a driving motor 5-2, a driving wheel 5-3, a driven wheel 5-4, a proximity inductive switch 5-5 and a support 5-6.

Detailed Description

As shown in fig. 1: the direction vertical to the paper surface is the Y direction, and the horizontal direction is the X direction; two Y rails 1 are arranged in parallel side by side on the maintenance side (left side in the figure). The power vehicle 3 is hung on the two Y rails 1, the power vehicle 3 is provided with an X main rail 3-1, an X auxiliary rail 4 is arranged on the side of the coal grinding machine (the right side in the figure), and the X auxiliary rail is parallel to the X main rail and has the same height.

As shown in fig. 2: the Y direction is a vertical direction, and the X direction is a horizontal direction; the power vehicle 3 is of an I-shaped structure, rollers are arranged at two ends of the I-shaped structure, and an X-shaped main track 3-1 is arranged in the middle of the I-shaped structure.

As shown in fig. 3: the Y direction is a horizontal direction, and the X direction is a direction vertical to the paper surface; the electric hoist 5 includes: the electric hoist comprises an electric hoist body 5-1, a driving motor 5-2, a driving wheel 5-3 and a driven wheel 5-4, wherein the driving wheel 5-3 and the driven wheel 5-4 are erected on an X main track 3-1 and are in rolling connection with the X main track 3-1; when the coal mill needs to be overhauled, the power vehicle runs to the X main rail 3-1 along the Y rail 1 and is aligned with the X auxiliary rail 4, and the electric hoist 5 is guaranteed to normally run to the auxiliary rail on the side of the coal mill.

As shown in fig. 1 and 3: the front end of the electric hoist body 5-1 is provided with an L-shaped support 5-6, the support 5-6 is connected with the electric hoist body 5-1 through bolts, the proximity inductive switch 5-5 is arranged on the support 5-6, and the vertical distance between the proximity inductive switch 5-5 and the X main track 3-1 is 10-20 cm.

The driving motor 5-2 is provided with a remote switch, and the remote switch, the driving motor 5-2 and the proximity inductive switch 5-5 are electrically connected in series.

The utility model discloses a use does: when equipment needs to be overhauled on the side of the coal mill, the power vehicle 3 runs to a position close to the corresponding coal mill along the Y track 1, the X main track 3-1 and the X auxiliary track 4 are aligned and limited, the approach inductive switch 5-5 is turned on, the practical remote control switch operates the motor to rotate, the electric hoist 5 runs to the X auxiliary track 4 from the X main track 3-1, then the equipment needing to be overhauled is hoisted, and the equipment returns to be transported to the overhauling side according to the original path.

If the X main track 3-1 and the X auxiliary track 4 are not aligned, the proximity inductive switch 5-5 is turned off, so that the motor cannot run, and the accident that the electric hoist 5 is derailed is prevented.

Claims

1. The utility model provides a coal pulverizer crosses rail and hangs protection device of preventing maloperation which characterized in that includes: the coal grinding machine comprises a Y track positioned on the overhaul side, an X auxiliary track positioned on the coal grinding machine side, a power vehicle hung below the Y track and an electric hoist hung below the power vehicle;

the power car is in rolling connection with the Y track;

still include proximity inductive switch, proximity inductive switch sets up on the electric hoist body to be located X main orbit under, and be close to coal pulverizer side one end, proximity inductive switch with driving motor electric connection.

2. The coal mill cross rail hangs mistake operation protection device of claim 1, characterized in that the electric hoist body front end is provided with L type support, the proximity switch sets up on the support, the proximity switch and the perpendicular distance of X main track is 10~20 cm.

3. The coal pulverizer cross rail hangs mistake operation protection device of claim 2, characterized in that, the support with the electric block body bolted connection.

4. The coal pulverizer cross rail hangs mistake operation protection device of claim 1, characterized by, the X primary rail with X secondary rail specification the same, the same direction and the unanimous height.

5. The coal pulverizer cross rail hangs mistake operation protection device of claim 1, characterized in that, the driving motor is provided with remote switch, and remote switch, driving motor, proximity inductive switch pass through the series connection mode electrical connection.