Flat plate type magnetic damping spring

Abstract

The utility model relates to a flat plate type magnetic damping spring, which belongs to the technical field of springs and is characterized in that a magnetic damping spring A and a magnetic damping spring B are oppositely arranged, and the elastic coefficient between the magnetic damping spring A and the magnetic damping spring B is adjusted by adjusting the distance between the magnetic damping spring A and the magnetic damping spring B; the first magnet is arranged on the inner side wall of the magnetic damping spring A, the second magnet is arranged on the inner side wall of the magnetic damping spring B, the first magnet and the second magnet are opposite in magnetism and are arranged in parallel, and the magnetic damping plate is arranged between the first magnet and the second magnet in a penetrating mode. According to the utility model, the service life is long, the elastic constant can be flexibly adjusted through the distance between the magnetic damping spring A and the magnetic damping spring B, the elastic force change does not generate larger force fluctuation due to the stroke change, and meanwhile, the elastic force and the tensile force can be automatically recovered to the zero position; the limitation that an existing mechanical spring can only generate unidirectional elastic force or tensile force is broken through, and the composite spring can generate damping force.

Description

Technical Field

[0001] The utility model relates to the technical field of springs, in particular to a flat magnetic damping spring. Background Art

[0002] The existing constant force springs are basically round rod type, and the round rod type constant force springs cannot adjust the elastic force. They are basically customized according to the force value or purchased with a specific value. The spring has force in only one direction, either compression or tension. In addition, if conventional mechanical springs are used in gantry mechanisms, they have a life cycle, and the service life is too short. They have to be replaced after millions of uses, and the elastic force constant is uncontrollable. The change in elastic force produces a large force fluctuation according to the change in stroke. The spring will produce an instantaneous high speed when resetting, which can easily cause the mechanism to collide. In addition, the elastic coefficient of the mechanical spring cannot be freely adjusted. Auxiliary guides and other mechanisms are also required to support the spring when the stroke is long, resulting in large force fluctuations. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the problems of short life cycle and uncontrollable elastic force constant of mechanical springs in the prior art, and to provide a flat magnetic damping spring, which has a long service life and can cut the magnetic field between the magnetic damping A spring and the magnetic damping B spring through the magnetic damping plate to generate damping force in two directions, and the spacing between the magnetic damping A spring or the magnetic damping B spring is adjustable, and the size of the elastic force coefficient can be flexibly adjusted by controlling the spacing between the two.

[0004] The utility model provides a flat magnetic damping spring, including a magnetic damping A spring, a magnetic damping B spring, a first magnet, a second magnet and a magnetic damping plate. The magnetic damping A spring and the magnetic damping B spring are arranged relative to each other, and the elastic coefficient between the magnetic damping A spring and the damping B spring is achieved by adjusting the distance between the magnetic damping A spring and the damping B spring; the first magnet is arranged on the inner side wall of the magnetic damping A spring, and the second magnet is arranged on the inner side wall of the magnetic damping B spring. The first magnet and the second magnet have opposite magnetic properties and are arranged in parallel. The magnetic damping plate is interspersed between the first magnet and the second magnet and can move back and forth in the cavity formed by the magnetic damping A spring and the magnetic damping B spring. This flat magnetic damping spring coexists with damping, and can be used to reduce the oscillation of the magnetic damping A spring and the magnetic damping B spring during high-speed operation. The damping size and elastic coefficient are adjustable, and it has forces in both ± directions.

[0005] In one embodiment of the utility model, the magnetic damping A spring is connected to the moving part, and the magnetic damping B spring is connected to the fixed part.

[0006] In one embodiment of the utility model, the magnetic damping B spring is connected to the moving part, and the magnetic damping A spring is connected to the fixed part.

[0007] In an embodiment of the present invention, two ends of the magnetic damping plate are connected to the moving part via fasteners respectively.

[0008] In one embodiment of the utility model, the magnetic damping A spring includes a transverse fixing part 1 and a longitudinal fixing part 1, the transverse fixing part 1 and the longitudinal fixing part 1 are vertically arranged, a plurality of positioning columns are arranged on the transverse fixing part 1, and a first magnet is arranged on the longitudinal fixing part 1.

[0009] In one embodiment of the present invention, the transverse fixing portion 1 and the longitudinal fixing portion 1 are connected by a fastener, and the two form an L-shaped structure, and the transverse fixing portion 1 is provided with a U-shaped groove for wrapping the fastener.

[0010] In one embodiment of the utility model, the magnetic damping B spring includes a second transverse fixing part and a second longitudinal fixing part, the second transverse fixing part and the second longitudinal fixing part are vertically arranged, a plurality of locking bolts are arranged on the second transverse fixing part, and a second magnet is arranged on the second longitudinal fixing part.

[0011] In one embodiment of the present invention, the second transverse fixing portion and the second longitudinal fixing portion are connected by a fastener, and the two form an L-shaped structure.

[0012] In one embodiment of the present invention, the first magnet includes a plurality of Ruthenium iron boron magnets NNSS, and the second magnet includes a plurality of Ruthenium iron boron magnets SSNN.

[0013] In one embodiment of the utility model, the number of the Ruthenium iron boron magnets NNSS and the Ruthenium iron boron magnets SSNN are both proportional to the stroke of the flat damping spring.

[0014] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0015] The flat-plate magnetic damping spring described in the utility model has a long service life cycle, and the elastic force constant can be flexibly adjusted through the spacing between the magnetic damping A spring and the magnetic damping B spring, and the elastic force change will not produce a large force fluctuation due to the change of stroke, and this flat-plate magnetic damping spring has both elastic force and pulling force and can automatically return to zero position, breaking through the limitation that the existing mechanical spring can only produce unidirectional elastic force or pulling force, and is a composite spring that can generate damping force; when the moving part starts to run, it will drive the magnetic damping A spring or the magnetic damping B spring to move, thereby causing the magnetic damping A spring and the magnetic damping B spring to generate a magnetic force that pulls each other, and when the magnetic damping plate moves between the magnetic damping A spring 1 and the magnetic damping B spring, it generates the characteristic of magnetic field cutting, thereby generating damping, the higher the speed, the greater the damping, when the speed is relatively low, the damping tends to zero, when a larger or smaller force value is needed, it can be achieved by adjusting their spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of a flat magnetic damping spring in a preferred embodiment of the utility model;

[0018] Figure 2 yes Figure 1 The structural schematic diagram of the damping spring A of the flat magnetic damping spring shown;

[0019] Figure 3 yes Figure 1 The structural schematic diagram of the damping B spring of the flat magnetic damping spring shown;

[0020] Explanation of the reference numerals in the specification: 1. Magnetic damping spring A; 11. Horizontal fixing part one; 12. Longitudinal fixing part one; 13. Positioning column; 14. U-shaped groove; 2. Magnetic damping spring B; 21. Horizontal fixing part two; 22. Longitudinal fixing part two; 23. Locking bolt; 3. First magnet; 4. Second magnet; 5. Magnetic damping plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] Reference Figure 1 As shown, the utility model is a flat-plate magnetic damping spring, comprising a magnetic damping A spring 1, a magnetic damping B spring 2, a first magnet 3, a second magnet 4 and a magnetic damping plate 5, wherein the magnetic damping A spring 1 and the magnetic damping B spring 2 are arranged relative to each other, and the elastic coefficient between the magnetic damping A spring 1 and the magnetic damping B spring 2 is achieved by adjusting the distance between the magnetic damping A spring 1 and the magnetic damping B spring 2; the first magnet 3 is arranged on the inner side wall of the magnetic damping A spring 1, and the second magnet 4 is arranged on the inner side wall of the magnetic damping B spring 2, the first magnet 3 and the second magnet 4 have opposite magnetic properties and are arranged in parallel, and the magnetic damping plate 5 is interspersed between the first magnet 3 and the second magnet 4 and can move back and forth in the cavity formed by the magnetic damping A spring 1 and the magnetic damping B spring 2.

[0023] In this embodiment, the magnetic damping A spring 1 is connected to the moving part, and the magnetic damping B spring 2 is connected to the fixed part. The two ends of the magnetic damping plate 5 are connected to the moving part by fasteners. After the magnetic damping A spring 1 and the magnetic damping B spring 2 are installed in place, they form a cavity for the magnetic damping plate 5 to move. In actual application, the distance between the magnetic damping A spring 1 and the magnetic damping B spring will be set in advance according to the elastic coefficient; when the moving part starts to run, it will drive the magnetic damping A spring 1 or the magnetic damping B spring 2 to move, thereby causing the magnetic damping A spring 1 and the magnetic damping B spring 2 to generate a magnetic force that pulls each other. When the magnetic damping plate 5 moves between the magnetic damping A spring 1 and the magnetic damping B spring 2, it generates the characteristics of magnetic field cutting, thereby generating damping. The higher the speed, the greater the damping. When the speed is relatively low, the damping tends to zero. When a larger or smaller force value is required, it can be achieved by adjusting the distance between the magnetic damping A spring 1 and the magnetic damping B spring 2.

[0024] like Figure 2 As shown, the magnetic damping A spring 1 includes a transverse fixing part 11 and a longitudinal fixing part 12, the transverse fixing part 11 and the longitudinal fixing part 12 are arranged vertically, a plurality of positioning columns 13 are arranged on the transverse fixing part 11, and a first magnet 3 is arranged on the longitudinal fixing part 12. The transverse fixing part 11 and the longitudinal fixing part 12 are connected by a fastener, and the two form an L-shaped structure, and the transverse fixing part 11 is provided with a U-shaped groove 14 for wrapping the fastener. The transverse fixing part 11 is used to connect and fix with the moving part, and the longitudinal fixing part 12 is used to fix the first magnet 3. The positioning column 13 facilitates the positioning of the transverse fixing part 11 when the magnetic damping A spring 1 is installed, which helps to improve the accuracy of the installation position of the magnetic damping A spring 1.

[0025] The U-shaped groove 14 wraps the head of the fastener so that the head of the fastener remains flush with the surface of the transverse fixing portion 11, thereby ensuring the tightness of the connection between the components.

[0026] like Figure 3 As shown, the magnetic damping B spring 2 includes a second transverse fixing part 21 and a second longitudinal fixing part 22. The second transverse fixing part 21 and the second longitudinal fixing part 22 are arranged vertically. The second transverse fixing part 21 is provided with a plurality of locking bolts 23, and the second longitudinal fixing part 22 is provided with a second magnet 4. The second transverse fixing part 21 and the second longitudinal fixing part 22 are connected by a fastener, and the two form an L-shaped structure. The second transverse fixing part 21 is used to connect and fix with the fixing part, and the second longitudinal fixing part 22 is used to fix the second magnet 4.

[0027] The first magnet 3 includes a plurality of ferromagnets NNSS, and the second magnet 4 includes a plurality of ferromagnets SSNN. The number of ferromagnets NNSS and ferromagnets SSNN is proportional to the stroke of the flat damping spring. In this embodiment, the stroke of the magnetic damping spring is +80mm, that is, the magnetic damping spring A 1 can be pushed 80mm or pulled 80mm, and its elastic force fluctuation is 20%; when the magnetic damping spring A 1 is aligned with the magnetic damping spring B 2, it indicates the zero position.

[0028] The magnetic damping plate 5 in this embodiment is a copper plate or an aluminum plate. When the magnetic damping plate 5 moves between the magnetic damping A spring 1 and the magnetic damping B spring 2, the magnetic field between the magnetic damping A spring 1 and the magnetic damping B spring 2 is cut, and then damping is generated. In addition, there is zero contact between the magnetic damping plate 5 and the magnetic damping A spring 1 and the magnetic damping B spring 2, so there will be no problem of shortened life, which greatly saves production costs.

[0029] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A flat magnetic damping spring, characterized in that: It includes a magnetic damping A spring, a magnetic damping B spring, a first magnet, a second magnet and a magnetic damping plate, wherein the magnetic damping A spring and the magnetic damping B spring are arranged relative to each other, and the elastic coefficient between the magnetic damping A spring and the damping B spring is achieved by adjusting the distance between the magnetic damping A spring and the damping B spring; the first magnet is arranged on the inner side wall of the magnetic damping A spring, the second magnet is arranged on the inner side wall of the magnetic damping B spring, and the first magnet and the second magnet have opposite magnetic properties and are arranged in parallel, and the magnetic damping plate is interspersed between the first magnet and the second magnet and can move back and forth in the cavity formed by the magnetic damping A spring and the magnetic damping B spring.

2. A flat magnetic damping spring according to claim 1, characterized in that: The magnetic damping A spring is connected to the moving part, and the magnetic damping B spring is connected to the fixed part.

3. A flat magnetic damping spring according to claim 1, characterized in that: The magnetic damping B spring is connected to the moving part, and the magnetic damping A spring is connected to the fixed part.

4. The flat magnetic damping spring according to claim 1, characterized in that: The two ends of the magnetic damping plate are connected to the moving part through fasteners respectively.

5. The flat magnetic damping spring according to claim 1, characterized in that: The magnetic damping A spring comprises a transverse fixing part 1 and a longitudinal fixing part 1, wherein the transverse fixing part 1 and the longitudinal fixing part 1 are vertically arranged, a plurality of positioning columns are arranged on the transverse fixing part 1, and a first magnet is arranged on the longitudinal fixing part 1.

6. A flat magnetic damping spring according to claim 5, characterized in that: The transverse fixing part 1 and the longitudinal fixing part 1 are connected by a fastener, and the two form an L-shaped structure, and the transverse fixing part 1 is provided with a U-shaped groove for wrapping the fastener.

7. The flat magnetic damping spring according to claim 1, characterized in that: The magnetic damping B spring includes a second transverse fixing part and a second longitudinal fixing part. The second transverse fixing part and the second longitudinal fixing part are vertically arranged. A plurality of locking bolts are arranged on the second transverse fixing part, and a second magnet is arranged on the second longitudinal fixing part.

8. The flat magnetic damping spring according to claim 7, characterized in that: The second transverse fixing part and the second longitudinal fixing part are connected by a fastener, and the two form an L-shaped structure.

9. The flat magnetic damping spring according to claim 1, characterized in that: The first magnet includes a plurality of Ruthenium iron boron magnets NNSS, and the second magnet includes a plurality of Ruthenium iron boron magnets SSNN.

10. The flat magnetic damping spring according to claim 9, characterized in that: The number of the Ruthenium iron boron magnets NNSS and the Ruthenium iron boron magnets SSNN is proportional to the stroke of the planar magnetic damping spring.

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