A collision-proof target for proximity switches

Abstract

This invention discloses an anti-collision target for proximity switches, relating to the field of proximity switch target technology. The anti-collision target for proximity switches includes a target fixing plate, on which an elastic element is provided. By using an elastic element as the target, the anti-collision target for proximity switches will not cause damage to the target (proximity switch) after the proximity switch accidentally hits it, thus enhancing the practicality of the target.

Description

Technical Field

[0001] This invention relates to the field of proximity switch target technology, specifically to an anti-collision target for proximity switches. Background Technology

[0002] A proximity switch is an electrical unit that senses changes in the position of a target within a certain range and outputs a switching signal. It is often used as a position and counting sensor.

[0003] During the automation upgrade of the belt conveyor unloading car in our mine, proximity switches were used as positioning sensors for the unloading car. In actual operation, due to the changing working conditions, the hard metal target that reflects the position change of the unloading car may collide with or be squeezed by the proximity switch, damaging the proximity switch, or it may work at the limit of the proximity switch's detection distance, resulting in unstable signal. All of these results in abnormal equipment operation, which not only affects production but also increases maintenance costs and workload. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an anti-collision target for proximity switches, which solves the problem that traditional hard metal targets are easily damaged after a collision.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-collision target for a proximity switch, comprising a target fixing plate, wherein an elastic element is provided on the target fixing plate.

[0008] Preferably, the target fixing plate has a bracket mounting through hole and a target mounting through hole.

[0009] Preferably, the device includes a pressure plate, which has a through hole corresponding to the position of the target mounting through hole. The elastic element is disposed between the pressure plate and the target fixing plate and is fixed by a target mounting bolt. The target mounting bolt passes through the target mounting through hole and the through hole to fix the elastic element between the pressure plate and the target fixing plate.

[0010] Preferably, the bracket mounting through hole is provided with bracket mounting bolts.

[0011] Preferably, a gasket is provided between the bracket mounting bolt and the target fixing plate.

[0012] Preferably, the elastic element is a metal elastic element.

[0013] Preferably, the target fixing plate is an L-shaped bracket.

[0014] Preferably, the mounting through hole of the bracket is located on the upper side of the L-shaped bracket.

[0015] Preferably, the target mounting through hole is located on the lower side of the L-shaped bracket.

[0016] Preferably, the metal elastic element is a plastic-coated steel wire rope.

[0017] (III) Beneficial Effects

[0018] This invention provides an anti-collision target for proximity switches. It has the following advantages:

[0019] The proximity switch uses an elastic element as the anti-collision target, which will not damage the target (proximity switch) if the proximity switch accidentally hits the target, thus enhancing the practicality of the target. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of an L-shaped support structure;

[0022] Figure 3 This is a schematic diagram of the pressure plate structure;

[0023] Figure 4 This is a schematic diagram of the installation structure of the present invention.

[0024] In the diagram: 1. L-shaped bracket; 1-2. Bracket mounting through hole; 1-1. Target mounting through hole; 2. Pressure plate; 2-1. Through hole; 3. Plastic-coated steel wire rope; 4. Target mounting bolt; 5. Bracket mounting bolt; 6. Proximity switch; 7. Gasket. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1: The most basic unit for realizing the function of this invention

[0027] An anti-collision target for a proximity switch includes a target fixing plate with an elastic element provided on the target fixing plate.

[0028] Example 2: Mounting holes are made on the target fixing plate.

[0029] The target mounting plate has bracket mounting through holes 1-2 and target mounting through holes 1-1.

[0030] Example 3: Fixing the elastic element with a pressure plate

[0031] Includes a pressure plate 2, on which a through hole 2-1 corresponding to the position of the target mounting through hole 1-1 is opened. An elastic element is disposed between the pressure plate 2 and the target fixing plate and is fixed by a target mounting bolt 4. The target mounting bolt 4 passes through the target mounting through hole 1-1 and through hole 2-1 to fix the elastic element between the pressure plate 2 and the target fixing plate.

[0032] Example 4: Fix the target fixing plate in the required position using bracket mounting bolts 5.

[0033] A bracket mounting bolt 5 is provided on the bracket mounting through hole 1-1.

[0034] Example 5: Adjustable horizontal position of the target fixing plate

[0035] A gasket 7 is provided between the bracket mounting bolt 5 and the target fixing plate.

[0036] Example 6: Using a metal elastic element in conjunction with a metal detection proximity switch 6

[0037] The elastic element is a metal elastic element.

[0038] Example 7: Installation method of adding target fixing plate

[0039] The target mounting plate is an L-shaped bracket 1. The bracket mounting through holes 1-2 are located on the upper side of the L-shaped bracket 1, and the target mounting through hole 1-1 is located on the lower side of the L-shaped bracket 1.

[0040] Example 8: Using a plastic-coated steel wire rope 3 with good elasticity as the target.

[0041] The metal elastic component is a plastic-coated steel wire rope 3.

[0042] Installation and debugging steps of Example 8: Fabricate an L-shaped bracket 1 and a pressure plate 2 of suitable size. Drill through holes 1-1, 1-2, and 2-1 on them for target installation. Cut multiple Φ3mm plastic-coated steel wire ropes 3 of suitable length as needed and arrange them tightly between the L-shaped bracket 1 and the pressure plate 2. Target installation bolts 4 pass through through holes 2-1 and 1-1 to secure the L-shaped bracket 1 and the pressure plate 2 into a single unit, forming a complete target. Figure 1The plastic-coated steel wire rope 3 must not loosen or fall off when subjected to a certain external force. The bracket mounting bolt 5 passes through the strip-shaped bracket mounting through-holes 1-2 on the L-shaped bracket 1 and is fixed to the moving component that needs positioning. After loosening the bracket mounting bolt 5 and adjusting the left and right positions of the target, tighten the bracket mounting bolt 5. Adjust the front and rear positions of the target by changing the thickness of the shim 7, so that the front end of the target slightly exceeds the maximum radial position of the proximity switch 6. Adjust the up and down positions of the proximity switch 6 to achieve the optimal distance between it and the target. After static adjustment, mark the current position of the proximity switch. Continue to adjust the position of the proximity switch 6 downwards until it contacts the target. Move the target and check the deformation of the steel wire rope in the target, whether the detection surface of the proximity switch 6 is wrapped by multiple steel wire ropes, and whether the position signal transmission is normal. If the downward pressure at the end of the target is large, the thickness of the shim 7 can be reduced. After this adjustment, restore the position of the proximity switch 6. Move the target throughout the process, check the signal transmission of the proximity switches in other positions, and make appropriate adjustments.

[0043] In summary, the proximity switch uses an elastic element as the anti-collision target, which will not damage the target (proximity switch) if the proximity switch accidentally hits the target, thus enhancing the practicality of the target.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A collision-resistant target for a proximity switch, comprising a target fixing plate and a pressure plate (2), characterized in that: The target fixing plate is provided with an elastic element; The target mounting plate is provided with bracket mounting through holes (1-2) and target mounting through holes (1-1). The pressure plate (2) has a through hole (2-1) corresponding to the target mounting through hole (1-1). The elastic element is disposed between the pressure plate (2) and the target fixing plate and is fixed by the target mounting bolt (4). The target mounting bolt (4) passes through the target mounting through hole (1-1) and the through hole (2-1) to fix the elastic element between the pressure plate (2) and the target fixing plate. The elastic element is a metal elastic element; The target fixing plate is an L-shaped bracket (1). The bracket mounting through hole (1-2) is provided with bracket mounting bolt (5); The mounting holes (1-2) of the bracket are provided on the upper side of the L-shaped bracket (1); The target mounting through hole (1-1) is located on the lower side of the L-shaped bracket (1); The metal elastic component is a plastic-coated steel wire rope (3); The mounting holes (1-2) of the bracket are strip-shaped through holes.

2. The anti-collision target for a proximity switch according to claim 1, characterized in that: A gasket (7) is provided between the bracket mounting bolt (5) and the target fixing plate.

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