Magnetic control switch support

Abstract

The utility model discloses a magnetically-controlled switch support which comprises an elevator connecting piece and a magnetically-controlled switch, a vertical plate is fixedly connected to the elevator connecting piece, a stainless steel cylinder ring is fixedly inserted in the vertical plate in a penetrating mode, a magnetism isolating ring is movably inserted in the stainless steel cylinder ring, a containing cavity is formed in the magnetism isolating ring, and the magnetism isolating ring is connected with the elevator connecting piece in a penetrating mode. The magnetic control switch is installed in the containing cavity in an interference fit mode. The magnetically-controlled switch support further comprises a movable contact piece, the movable contact piece comprises a magnet ring, and when the movable contact piece moves to the position equal to the magnetically-controlled switch in height, the magnet ring right faces the head end of the magnetically-controlled switch, and the distance between the magnet ring and the head end of the magnetically-controlled switch is smaller than the triggering distance of the magnetically-controlled switch. The switch bracket not only can reduce the damage rate of the magnetically controlled switch caused by a falling object, but also can prevent the operation accuracy of the magnetically controlled switch from being influenced by the residual magnetism phenomenon of the switch bracket.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of support, especially relates to a magnetic control switch support. BACKGROUND

[0002] The mine shaft hoist is an important equipment in the mining and transportation system, and its main function is to lift the ore, personnel and materials from the underground to the ground. In order to ensure the safety and reliability in the lifting process, the mine shaft hoist needs to be equipped with a series of precise control systems, among which the magnetic control switch as an important sensing element is widely used in the safety monitoring and automatic control of the hoist.

[0003] The magnetic control switch is an electronic component that uses magnetic field changes to operate the switch, and has the characteristics of no contact, wear resistance and anti-interference. Its main function is to monitor the running state of the hoist by sensing the change of the magnetic field, to ensure that the equipment can accurately detect the position change, state change and other important information during operation. The magnetic control switch is often installed between the fixed part and the moving part of the hoist, and cooperates with other sensors to complete the monitoring and control of the hoist.

[0004] The magnetic control switch is fixed on the fixed seat by the switch support, as shown in Figure 1 The switch support in the prior art is mostly a simple bent stainless steel sheet, and the magnetic control switch is installed in the head end of the switch support in a fixed plug-in form. However, due to the inevitable high-altitude falling objects during the shaft hoisting operation, it is inevitable to hit the magnetic control switch, thereby causing a high damage rate of the magnetic control switch. In addition, in order to ensure the firmness of the switch support, the switch support is mostly made of stainless steel, and when the magnet ring approaches the switch support, the "residual magnetism" phenomenon is easily generated, resulting in that the switch support also has a certain magnetism. However, the switch support and the magnetic control switch in the prior art are closely connected, and thus the accuracy of the operation of the magnetic control switch is easily affected. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model puts forward the following technical scheme:

[0006] A magnetic control switch support, comprising a hoist connecting piece and a magnetic control switch, the hoist connecting piece is fixedly connected with a vertical plate, a stainless steel cylinder ring is fixedly plugged through the vertical plate, a magnetic shielding ring is movably plugged in the inside of the stainless steel cylinder ring, a containing cavity is arranged in the inside of the magnetic shielding ring, and the magnetic control switch is installed in the containing cavity in interference fit;

[0007] The magnetic control switch support further comprises a moving contact, the moving contact comprises a magnet ring, when the moving contact moves to the same height as the magnetic control switch, the magnet ring is opposite to the head end of the magnetic control switch, and the distance between them is less than the trigger distance of the magnetic control switch.

[0008] As the preferred technical scheme above, the fastener is arranged between the stainless steel cylinder ring and the magnetic isolation ring, and the stainless steel cylinder ring and the magnetic isolation ring are fixed relative to each other through the fastener.

[0009] The fastener comprises a fastening bolt, and a threaded hole is formed in the periphery of the stainless steel cylinder ring, the fastening bolt is screwed through the threaded hole and abuts against the outer wall of the magnetic isolation ring.

[0010] As the preferred technical scheme above, the magnetic isolation ring is made of copper.

[0011] As the preferred technical scheme above, the movable contact comprises a lifting machine connecting piece fixedly connected to the lifting machine, a magnet support is fixedly connected to the lifting machine connecting piece, and the magnet ring is fixedly connected to the head end of the magnet support close to one side of the fixed seat.

[0012] As the preferred technical scheme above, the magnet ring is fixedly connected to the magnet support through a positioning bolt.

[0013] As the preferred technical scheme above, a through hole is formed in the head end of the magnet support, the diameter of the through hole, the inner ring diameter of the magnet ring and the screw body diameter of the positioning bolt are matched, and are all smaller than the screw head diameter of the positioning bolt.

[0014] The utility model discloses the beneficial effects are:

[0015] Compared with the switch support in the prior art, the periphery of the magnetic control switch is first axially fully covered by the magnetic isolation ring, and then the axially fully covered stainless steel cylinder ring is arranged on the periphery of the magnetic isolation ring. Under the protection of the two layers of axial full covering, the magnetic control switch can be better protected, and the damage rate of the magnetic control switch due to high-altitude falling objects is greatly reduced. At the same time, the magnetic isolation ring between the magnetic control switch and the stainless steel cylinder ring can play a role in blocking magnetism, thereby avoiding the influence of the "residual magnetism" phenomenon on the accuracy of the operation of the magnetic control switch. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 shows a perspective structural schematic view of a magnetic control switch installed in a switch support in the prior art;

[0017] Figure 2 Fig. 2 shows a right overhead perspective structural schematic view of a magnetic control switch support in an embodiment;

[0018] Figure 3 Fig. 3 shows a left overhead perspective structural schematic view of a magnetic control switch support in an embodiment.

[0019] In the figure: 10, fixed seat; 20, elevator connecting piece; 30, switch support; 31, vertical plate; 32, stainless steel cylinder ring; 33, magnetic ring; 321, threaded hole; 322, fastening bolt; 40, magnetic control switch; 50, magnet support; 60, positioning bolt; 70, magnet ring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the utility model technical scheme will be described clearly and completely below in combination with embodiments.

[0021] EMBODIMENT

[0022] As shown in Figure 2 , Figure 3 , a magnetic control switch support includes an elevator connecting piece 20 and a magnetic control switch 40, the vertical plate 31 is fixedly connected on the elevator connecting piece 20, the stainless steel cylinder ring 32 is fixedly inserted through on the vertical plate 31, the magnetic ring 33 is movably inserted in the inside of the stainless steel cylinder ring 32, the inside of the magnetic ring 33 is provided with a containing cavity, and the magnetic control switch 40 is installed in the containing cavity in interference fit.

[0023] The magnetic control switch support further includes a moving contact, the moving contact includes a magnet ring 70, when the moving contact moves to the same height as the magnetic control switch 40, the magnet ring 70 is opposite to the head end of the magnetic control switch 40 and the spacing between them is less than the trigger spacing of the magnetic control switch 40.

[0024] Compared with the switch support in the prior art, the magnetic control switch 40 is first axially fully covered by the magnetic ring 33, and then the stainless steel cylinder ring 32 is provided axially fully covered on the outside of the magnetic ring 33, under the protection of the two layers of axial full covering, the magnetic control switch 40 can be better protected, greatly reducing the damage rate of the magnetic control switch 40 due to high-altitude falling objects; at the same time, the magnetic ring 33 between the magnetic control switch 40 and the stainless steel cylinder ring 32 can play a role in blocking magnetism, thereby avoiding the influence of the "residual magnetism" phenomenon on the accuracy of the operation of the magnetic control switch 40.

[0025] The fastener is arranged between the stainless steel cylinder ring 32 and the magnetic ring 33, and the stainless steel cylinder ring 32 and the magnetic ring 33 are relatively fixed by the fastener.

[0026] The fastener includes a fastening bolt 322, the outside of the stainless steel cylinder ring 32 is provided with a threaded hole 321, the fastening bolt 322 is threaded through the threaded hole 321 and abuts against the outer wall of the magnetic ring 33.

[0027] The magnetic ring 33 is made of copper. In this embodiment, the magnetic ring 33 is made of copper material with magnetic shielding function, and in actual application, copper can be replaced by other components with the same function.

[0028] The mobile contact includes a lifting machine connector 20 fixedly connected to the lifting machine, a magnet support 50 fixedly connected to the lifting machine connector 20, and a magnet ring 70 fixedly connected to a head end of the magnet support 50 close to one side of the fixed seat 10.

[0029] The magnet ring 70 is fixedly connected to the magnet support 50 through a positioning bolt 60.

[0030] A through hole is formed in the head end of the magnet support 50, the diameter of the through hole and the inner ring diameter of the magnet ring 70 are matched with the screw body diameter of the positioning bolt 60, and are smaller than the screw head diameter of the positioning bolt 60. During installation, the inner ring of the magnet ring 70 is aligned with the through hole, and then the positioning bolt 60 is passed through and fixed through a nut.

[0031] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. A magnetron switch support comprising a hoist connector (20) and a magnetron switch (40), characterized in that, The lifting machine connecting piece (20) is fixedly connected with a vertical plate (31), the vertical plate (31) is fixedly inserted with a stainless steel cylinder ring (32) in a penetrating mode, the inside of the stainless steel cylinder ring (32) is movably inserted with a magnetic isolation ring (33), the inside of the magnetic isolation ring (33) is provided with a containing cavity, and the magnetic control switch (40) is interference fitted in the containing cavity; The magnetic control switch support further comprises a moving contact, the moving contact comprises a magnet ring (70), when the moving contact moves to the same height as the magnetic control switch (40), the magnet ring (70) faces the head end of the magnetic control switch (40) and the distance between them is less than the trigger distance of the magnetic control switch (40).

2. A magnetron support according to claim 1, wherein The stainless steel cylinder ring (32) and the magnetic isolation ring (33) are provided with a fastener, and the stainless steel cylinder ring (32) and the magnetic isolation ring (33) are relatively fixed through the fastener; The fastener comprises a fastening bolt (322), the periphery of the stainless steel cylinder ring (32) is provided with a threaded hole (321), the fastening bolt (322) is threaded through the threaded hole (321) and abuts against the outer wall of the magnetic isolation ring (33).

3. A magnetron support according to claim 1, wherein The magnetic isolation ring (33) is made of copper.

4. A magnetron support according to claim 1, wherein The moving contact comprises a lifting machine connecting piece (20) fixedly connected on the lifting machine, the lifting machine connecting piece (20) is fixedly connected with a magnet support (50), and the magnet ring (70) is fixedly connected on the head end of the magnet support (50) close to one side of the fixed seat (10).

5. A magnetron support according to claim 4, wherein The magnet ring (70) is fixedly connected on the magnet support (50) through a positioning bolt (60).

6. A magnetron support according to claim 5, wherein The head end of the magnet support (50) is provided with a through hole, the diameter of the through hole, the inner ring diameter of the magnet ring (70) and the screw body diameter of the positioning bolt (60) are matched, and they are all smaller than the screw head diameter of the positioning bolt (60).

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