Emergency stop device of coal loader

Abstract

The utility model discloses an emergency stop device of a coal loader, which is electrically connected between a starting switch and a controller of the coal loader and comprises a base, a protective shell and a stay wire. And a first wiring assembly, a second wiring assembly and a U-shaped elastic wiring sheet are arranged above the base. A wire inlet column and a wire outlet column of the first wiring assembly are connected with a second wire, and a wire inlet column and a wire outlet column of the second wiring assembly are connected with a ninth wire. The two top ends of the U-shaped elastic lug plate are fixedly connected with the wire inlet columns of the first wiring assembly and the second wiring assembly respectively, and the bottom of the U-shaped elastic lug plate abuts against the wire outlet columns of the first wiring assembly and the second wiring assembly. And one end of the stay wire passes through the threading hole and then is fixedly connected with the bottom of the U-shaped elastic lug plate. The emergency stop device of the coal loader can control emergency stop and restart of the coal loader, assists a power line pulling worker in pulling a line to prevent the power line from being damaged, and ensures production continuity.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine production, in particular to an emergency stop device for a coal loader. Background Art

[0002] Coal loader is a common equipment for underground coal mining and shipment, such as Figure 1 As shown, Figure 1 This is the start-stop control circuit diagram for the coal loader. The coal loader starts and stops via a start switch and a stop switch through a controller. The controller includes lines 1, 2, and 9. Starting the coal loader requires lines 1, 2, and 9 to be connected. The start switch is a normally open switch, and the stop switch is a normally closed switch. When the coal loader is stopped, lines 2 and 9 remain connected. When the start switch is pressed, line 1 and line 2 are connected, and the coal loader starts. When the stop switch is pressed, lines 2 and 9 are disconnected, and the coal loader shuts down.

[0003] At present, when using a coal loader to ship goods underground, in order to avoid the coal loader power cord being crushed, a special person is required to pull the coal loader power cord. During the operation, due to the loud noise at the construction site, the person pulling the power cord cannot convey the shutdown signal to the coal loader driver to stop moving the coal loader, or the person pulling the cable cannot pull the cable in time, causing the coal loader to frequently crush the power cord, causing damage to the power cord, and then causing production interruption. Utility Model Content

[0004] Based on this, it is necessary to provide a coal loader emergency stop device to address the above technical problems, which can control the emergency stop and restart of the coal loader, assist the personnel pulling the power cord to pull the line to avoid damage to the power cord and ensure production continuity.

[0005] The utility model provides an emergency stop device for a coal loader, which is electrically connected between a start switch of the coal loader and a controller, and comprises a base fixedly connected to a beam of the coal loader, a protective shell fixedly connected above the base, and a pull wire;

[0006] A first wiring assembly, a second wiring assembly and a U-shaped elastic wiring piece are provided above the base. The first wiring assembly and the second wiring assembly each include an incoming wire post and an outgoing wire post, and the incoming wire post and the outgoing wire post are both fixedly connected to the base.

[0007] The incoming and outgoing terminals of the first wiring assembly are both connected to Line 2, and the incoming and outgoing terminals of the second wiring assembly are both connected to Line 9;

[0008] The two top ends of the U-shaped elastic connecting piece are fixedly connected to the incoming wire posts of the first wiring assembly and the second wiring assembly respectively, and the bottom of the U-shaped elastic connecting piece abuts against the outgoing wire posts of the first wiring assembly and the second wiring assembly:

[0009] A wire threading hole is provided on the top of the protective shell for the wire to pass through. One end of the wire passes through the wire threading hole and is fixedly connected to the bottom of the U-shaped elastic wiring piece.

[0010] In one embodiment, a fixing ear is provided at the bottom of the U-shaped elastic wiring piece, and one end of the pull wire is fixedly connected to the fixing ear after passing through the wire threading hole.

[0011] In one embodiment, a limiting member for limiting the deformation of the U-shaped elastic connecting piece is further provided above the base. The limiting member is composed of a support plate and a baffle. The support plate is perpendicular to the base, and the baffle is parallel to the plane where the U-shaped elastic connecting piece is located and is located above the base of the U-shaped elastic connecting piece.

[0012] The support plate is fixedly connected to the base, and the baffle is fixedly connected to the support plate.

[0013] In one embodiment, two opposite side walls of the protective shell are provided with wiring holes for connecting the incoming wire pole and the outgoing wire pole.

[0014] The beneficial effect of the present invention is that after the coal loader is started, when it is necessary to stop the coal loader urgently to pull the wire, the U-shaped elastic wiring piece can be pulled by tightening the pull wire, so that the bottom of the U-shaped elastic wiring piece is separated from the outlet column of the first wiring assembly and the second wiring assembly, thereby disconnecting Line 2 and Line 9, and realizing the emergency stop of the coal loader. After the wire puller places the power cord in the appropriate position, the pull wire is released, the bottom of the U-shaped elastic wiring piece is reset, and the coal loader resumes startup. The coal loader emergency stop device of the present invention can be controlled by the power cord puller to start and stop the coal loader, and assist the power cord puller in pulling the line, which can prevent the power cord from being crushed and damaged, affecting production continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the start and stop control circuit diagram of the coal loader;

[0016] Figure 2 This is a schematic diagram of the connection between the emergency stop device of the coal loader and the start-stop control circuit of the coal loader of the present invention;

[0017] Figure 3 This is a structural diagram of the emergency stop device for a coal loader of the present invention;

[0018] Figure 4 This is a schematic diagram of the base structure of the coal loader emergency stop device of the present invention.

[0019] Explanation of the reference numerals: 100, controller; 200, coal loader emergency stop device; 210, base; 211, first wiring assembly; 212, second wiring assembly; 213, U-shaped elastic wiring piece; 214, incoming wire post; 215, outgoing wire post; 216, fixing ear; 217, limiter; 220, protective shell; 221, wire threading hole; 222, wiring hole; 230, pull wire; 300, start switch; 400, stop switch. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] It should be noted that in the description of this utility model, “upper”, “lower”, “top”, “bottom”, orientation or position relationship is based on the attached Figure 3 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0022] In one embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, the coal loader emergency stop device 200 of this embodiment is electrically connected between the coal loader start switch 300 and the controller 100, and includes a base 210 fixedly connected to the coal loader beam, a protective shell 220 fixedly connected above the base 210, and a pull wire 230.

[0023] Specifically, the base 210 is fixed to the coal loader beam by bolts.

[0024] A first wiring assembly 211, a second wiring assembly 212 and a U-shaped elastic wiring piece 213 are arranged above the base 210. The first wiring assembly 211 and the second wiring assembly 212 each include an input terminal 214 and an output terminal 215. The input terminal 214 and the output terminal 215 are both fixedly connected to the base 210.

[0025] Specifically, the U-shaped elastic connecting piece 213 in this embodiment is preferably made of copper.

[0026] The incoming terminal 214 and the outgoing terminal 215 of the first wiring assembly 211 are both connected to line 2, and the incoming terminal 214 and the outgoing terminal 215 of the second wiring assembly 212 are both connected to line 9; the two top ends of the U-shaped elastic wiring piece 213 are respectively fixedly connected to the incoming terminal 214 of the first wiring assembly 211 and the second wiring assembly 212, and the bottom of the U-shaped elastic wiring piece 213 is in contact with the outgoing terminal 215 of the first wiring assembly 211 and the second wiring assembly 212.

[0027] The top of the protective shell 220 is provided with a threading hole 221 for the pull wire 230 to pass through. One end of the pull wire 230 passes through the threading hole 221 and is fixedly connected to the bottom of the U-shaped elastic wiring piece 213. The two opposite side walls of the protective shell 220 are provided with wiring holes 222 for connecting the incoming wire post 214 and the outgoing wire post 215.

[0028] After the coal loader is started, if it needs to be stopped urgently to pull the power cord, the operator can tighten the pull cord 230, pulling the U-shaped elastic lug 213. This separates the bottom of the U-shaped elastic lug 213 from the outlet posts 215 of the first and second wiring assemblies 211 and 212, thereby disconnecting Line 2 and Line 9 and effectively stopping the coal loader. After the power cord is properly positioned, the operator releases the pull cord 230, causing the bottom of the U-shaped elastic lug 213 to return to its original position, and the coal loader resumes operation.

[0029] In addition, a pulley can be fixed in the center of the threading hole 221. After the pull wire 230 is wrapped around the pulley, it is fixedly connected to the bottom of the U-shaped elastic wiring piece 213. The pulley can avoid friction between the pull wire 230 and the threading hole 221, reduce the pulling force of the pull wire 230 during emergency stop, and make it easier for the person pulling the wire.

[0030] The coal loader emergency stop device 200 of this embodiment can enable the person pulling the power cord to independently control the start and stop of the coal loader, thereby avoiding damage to the power cord caused by untimely pulling of the cord, which affects production continuity.

[0031] In one embodiment, a fixing ear 216 is provided at the bottom of the U-shaped elastic connecting piece 213, and one end of the pull wire 230 is fixedly connected to the fixing ear 216 after passing through the threading hole 221. The function of the fixing ear 216 is to facilitate the connection between the pull wire 230 and the U-shaped elastic connecting piece 213.

[0032] In one embodiment, a limit member 217 for limiting the deformation of the U-shaped elastic wiring piece 213 is further provided above the base 210. The limit member 217 is composed of a support plate and a baffle. The support plate is perpendicular to the base 210, and the baffle is parallel to the plane where the U-shaped elastic wiring piece 213 is located and is located above the base 210 of the U-shaped elastic wiring piece 213; the support plate is fixedly connected to the base 210, and the baffle is fixedly connected to the support plate.

[0033] The function of the limiting plate is to prevent the pull wire 230 from being too long and causing damage to the U-shaped elastic connecting piece 213.

[0034] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A coal loader emergency stop device, characterized in that: It is electrically connected between the coal loader start switch (300) and the controller (100), and comprises a base (210) fixedly connected to the coal loader beam, a protective shell (220) fixedly connected above the base (210), and a pull wire (230); A first wiring assembly (211), a second wiring assembly (212) and a U-shaped elastic wiring piece (213) are provided above the base (210); the first wiring assembly (211) and the second wiring assembly (212) each include an incoming wire post (214) and an outgoing wire post (215); the incoming wire post (214) and the outgoing wire post (215) are both fixedly connected to the base (210); The incoming terminal (214) and the outgoing terminal (215) of the first wiring assembly (211) are both connected to line 2, and the incoming terminal (214) and the outgoing terminal (215) of the second wiring assembly (212) are both connected to line 9; The two top ends of the U-shaped elastic connecting piece (213) are respectively fixedly connected to the incoming wire posts (214) of the first connecting assembly (211) and the second connecting assembly (212), and the bottom of the U-shaped elastic connecting piece (213) is in contact with the outgoing wire posts (215) of the first connecting assembly (211) and the second connecting assembly (212). The top of the protective shell (220) is provided with a threading hole (221) for the pull wire (230) to pass through, and one end of the pull wire (230) passes through the threading hole (221) and is fixedly connected to the bottom of the U-shaped elastic wiring piece (213).

2. The coal loader emergency stop device according to claim 1, characterized in that: A fixing ear (216) is provided at the bottom of the U-shaped elastic connecting piece (213), and one end of the pull wire (230) is fixedly connected to the fixing ear (216) after passing through the wire threading hole (221).

3. The coal loader emergency stop device according to claim 2, characterized in that: A limiting member (217) for limiting the deformation of the U-shaped elastic connecting piece (213) is also provided above the base (210); the limiting member (217) is composed of a support plate and a baffle; the support plate is perpendicular to the base (210); the baffle is parallel to the plane where the U-shaped elastic connecting piece (213) is located and is located above the base (210) of the U-shaped elastic connecting piece (213); The support plate is fixedly connected to the base (210), and the baffle is fixedly connected to the support plate.

4. The coal loader emergency stop device according to claim 3, characterized in that: Two opposite side walls of the protective shell (220) are provided with wiring holes (222) for wiring the incoming wire post (214) and the outgoing wire post (215).

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