Magnetic damping spring

Abstract

The invention relates to a damping spring device suitable for industry or life, in particular to a magnetic damping spring. The magnetic damping spring comprises a supporting cylinder, a force guiding piston, a force guiding piston blocking piece, a supporting rod and two or more magnets. The force guiding piston blocking piece is arranged on the upper portion of the supporting cylinder. The supporting cylinder is of a cylindrical structure, one end of the supporting cylinder is sealed and is a bottom surface, and the other end is of an opening structure for the supporting rod to penetrate; the lower end of the supporting rod penetrates through the force guiding piston blocking piece to be connected with the force guiding piston, and the upper end extends out of an opening in the upper end of the supporting cylinder. A groove is formed in the inner bottom surface of the supporting cylinder, and a magnet A is placed in the groove; a groove for placing the magnet B is formed in the lower bottom surface of the force guiding piston; the supporting rod can conduct resultant force of vertical vibration generated by axial vibration, horizontal vibration and vertical vibration to the force guiding piston, the force guiding piston drives the magnet B to extrude downwards to generate repulsive force which is gradually increased with the distance space of the magnet A, the repulsive force is used for buffering vertical vibration force conducted by the force guiding piston, and therefore the damping effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a damping spring device for industrial or domestic use, in particular to a magnetic damping spring. BACKGROUND

[0002] At present, various small damping devices, especially spring damping devices, are needed for industrial or domestic use. Relevant data shows that the normal range of compression spring damping percentage is 80%-95%, and spring damping shows significant practical effect in active damping, passive vibration isolation, impact vibration and solid sound insulation. It can not only effectively prevent vibration and reduce noise, but also significantly improve vibration pollution. Therefore, installing four compression springs as air compressor pump head dampers on the four mounting feet of the air compressor pump head can achieve good damping and noise reduction effect. However, according to the practice and experimental results of the application of compression springs, under the premise of ensuring the quality of compression springs, in high-frequency applications: when the working frequency is increased to 100-500 times per minute, generally 10-100,000 cycles of loading. This is because high-frequency motion will generate more heat and stress concentration inside the compression spring, accelerating material fatigue and damage.

[0003] And the vibration frequency of the air compressor pump head is higher during operation, usually at 1380-2960 revolutions per minute, that is, the service life of the four compression springs used for damping of the air compressor pump head is usually shorter.

[0004] The existing magnetic spring has a longer service life than the compression spring, but the existing magnetic spring can only buffer reciprocating vibration from one direction, and does not have the characteristics of the compression spring, which can buffer vibration in the up-down direction and also buffer vibration in the front-back and left-right directions. SUMMARY

[0005] The purpose of the present application is to design a magnetic damping spring that uses the repulsive force generated by the repulsion of like poles of a magnet to buffer vibration and achieve damping effect. The trend-following characteristics of the support rod made of elastic material guide part of the vibration force from the x-axis and z-axis directions to the y-axis direction; the guide piston buffers part of the vibration force from the x-axis and z-axis directions guided by the support rod made of elastic material and the original y-axis direction vibration force. The elastic deformation of the elastic material buffers part of the x-axis, y-axis and z-axis direction vibration.

[0006] In order to achieve the above purpose, the present application is implemented as follows:

[0007] A magnetic damping spring, comprising a support cylinder 1, a force guide piston 2, a force guide piston stopper 4, a support rod 3 and two or more magnets, characterized in that the force guide piston stopper 4 is arranged on the upper part of the support cylinder 1; the support cylinder 1 is a cylindrical structure with a bottom at one end and an opening at the other end for the support rod 3 to pass through; the lower end of the support rod 3 passes through the force guide piston stopper 4 and is connected to the force guide piston 2, and the upper end of the support rod 3 extends out of the opening at the upper end of the support cylinder 1; a groove is arranged on the inner bottom of the support cylinder 1, and a magnet A5 is placed in the groove; the force guide piston 2 is arranged in the support cylinder 1, and the force guide piston 2 is a columnar structure with an outer diameter smaller than the inner diameter of the support cylinder; a groove is arranged on the lower bottom of the force guide piston 2 to place a magnet B.

[0008] The magnetic poles of the magnet B6 and the magnet A5 are arranged in the same direction and face each other.

[0009] One or more magnets are arranged between the magnet A5 and the magnet B6, and the magnetic poles of adjacent magnets are arranged in the same direction and face each other.

[0010] An annular magnet is arranged between the force guide piston and the force guide piston stopper through the support rod, and the magnetic poles of the annular magnet and the magnet B6 are arranged in the same direction and face each other.

[0011] The support rod is made of an elastic material in a columnar structure, and is fixedly installed on the central position of the upper surface of the force guide piston.

[0012] The force guide piston stopper 4 is an annular structure with an inner diameter larger than the outer diameter of the support rod 3; and the edge of the inner circular hole of the annular structure is a chamfered structure.

[0013] The side vertical surface of the force guide piston 2 is an arc structure.

[0014] The arc structure of the side vertical surface of the force guide piston 2 is an inner rotary cutting arc surface corresponding to the diameter of a sphere.

[0015] The bottom of the support cylinder 1 is provided with a threaded hole or a threaded rod; and the upper end of the support rod 3 is provided with a threaded hole or a threaded rod.

[0016] An annular magnet is arranged between the force guide piston and the force guide piston stopper through the support rod, and the magnetic poles of the annular magnet and the magnet B6 are arranged in the same direction and face each other; and the inner diameter of the annular magnet is larger than the outer diameter of the support rod.

[0017] One or more magnets can be added between the magnet A5 and the magnet B6, and the magnetic poles of adjacent magnets are arranged in the same direction and face each other.

[0018] The support cylinder 1, the force guide piston 2 and the force guide piston stopper 4 are made of an elastic material.

[0019] The support cylinder 1, the guide force piston 2 and the guide force piston stopper 4 are made of rigid material according to actual needs.

[0020] The support cylinder 1, the guide force piston 2 and the guide force piston stopper 4 can be made of TPU, rubber, silica gel, plastic, plastic or ACF according to needs.

[0021] The support cylinder, the guide force piston and the guide force piston stopper are made of high molecular elastic material.

[0022] The space between the magnet A and the magnet B is filled with elastic material.

[0023] The space between the magnet A and the magnet B is equipped with a pressure spring.

[0024] The above-mentioned magnet can be an electromagnet.

[0025] The cylinder wall within the stroke range of the guide force piston in the support cylinder is made of wear-resistant material, and the manufacturing material outside the stroke of the support cylinder is made of elastic material 9.

[0026] The support cylinder is made of elastic material 9, and the thin-walled piston sleeve 10 made of wear-resistant material is embedded in the inner wall of the cylinder wall within the stroke range of the guide force piston in the support cylinder.

[0027] The magnetic force damping spring not only has the long service life of the magnetic force spring, but also has the multi-dimensional damping performance as the compression spring, overcoming the limitations and drawbacks of the single damping direction of the traditional magnetic force spring and the short service life of the compression spring. Especially when the air compressor is working, three vibration direction forces, namely axial vibration, horizontal vibration and vertical vibration, are generated. The uncertain direction vibration force generated by the interaction of the axial vibration and the horizontal vibration will cause the elastic deformation of the support rod made of elastic material, so as to buffer the uncertain vibration force generated by the interaction of the axial vibration and the horizontal vibration. The elastic deformation of the support rod will convert part of the force generated by the axial vibration and the horizontal vibration into the vertical direction, and at the same time, the support rod will transmit the vertical vibration force generated by the axial vibration, the horizontal vibration and the vertical vibration to the guide force piston. The guide force piston drives the magnet B to extrude the distance space of the magnet A to generate gradually increasing repulsive force, so as to buffer the vertical vibration force transmitted by the guide force piston, thereby achieving the damping effect. BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is a schematic diagram of the internal structure of a magnetic force damping spring embodiment one. Figure 2 It is a schematic diagram of the internal structure of a magnetic force damping spring embodiment two. Figure 3 It is a schematic diagram of the internal structure of a magnetic force damping spring embodiment three. Figure 4It is a magnetic force damping spring implementation four internal structure schematic diagram Figure 5 It is a magnetic force damping spring implementation five internal structure schematic diagram Figure 6 It is a magnetic force damping spring in the implementation of the first to the fifth: the piston stroke range of the cylinder wall is made of wear-resistant material, and the support cylinder stroke is made of elastic material structure schematic diagram. Figure 7 It is a magnetic force damping spring in the implementation of the first to the fifth: the support cylinder is made of elastic material, and the inner wall of the cylinder wall in the support cylinder is embedded with a thin-walled piston sleeve made of wear-resistant material structure schematic diagram. Specific embodiments

[0028] The application will be further described below according to the drawings (as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 The application is described as follows: the support cylinder 1, the guide piston 2, the guide piston baffle 4, the support rod 3 and the magnet A 5, the magnet B 6, the annular magnet 7, the wear-resistant material 8, the elastic material 9, and the thin-walled piston sleeve 10 are shown in the drawings.

[0029] The application designs five embodiments:

[0030] Embodiment one

[0031] As shown in Figure 1 : the magnetic force damping spring comprises: a support cylinder 1, a guide piston 2, a guide piston baffle 4, a support rod 3 and a magnet A 5, a magnet B 6; the guide piston 2 and the magnet are arranged in the support cylinder 1; the upper part of the support cylinder 1 is provided with the guide piston baffle 4; the support cylinder 1 is a cylindrical structure with a bottom at one end and an opening structure at the other end for the support rod 3 to pass through, the lower end of the support rod 3 passes through the guide piston baffle 4 and is connected with the guide piston 2, and the upper end of the support rod 3 extends out of the opening at the upper end of the support cylinder 1. The inner bottom surface of the support cylinder 1 is provided with a groove, and the magnet A 5 is placed in the groove; the guide piston 2 is arranged in the support cylinder 1, and the guide piston 2 is a columnar structure with an outer diameter smaller than the inner diameter of the support cylinder 1; the lower bottom surface of the guide piston 2 is provided with a groove for placing the magnet B 6; the magnet A 5 and the magnet B 6 are installed with the same polarity at a certain distance in the support cylinder 1, and the mutual repulsion force is generated, and the smaller the distance between the two, the greater the repulsion force. The change of the distance space will have the effect of buffering and damping.

[0032] When the air compressor works, it mainly generates axial vibration, horizontal vibration and vertical vibration. The uncertain direction vibration force generated by the interaction of axial vibration and horizontal vibration forces the support rod 3 made of elastic material to elastically deform, so as to buffer the uncertain vibration force generated by the interaction of axial vibration and horizontal vibration. The elastic deformation of the support rod 3 converts part of the force generated by axial vibration and horizontal vibration into vertical direction. At the same time, the support rod 3 transmits the vertical vibration force generated by axial vibration, horizontal vibration and vertical vibration to the guide piston 2. The guide piston 2 drives the magnet B6 to extrude downward and the distance space of the magnet A5 to generate gradually increasing repulsion force, so as to buffer the vertical vibration force transmitted by the guide piston 2, thereby achieving the effect of shock absorption.

[0033] Embodiment two:

[0034] As shown in Figure 2 : the magnetic force shock absorption spring comprises a support cylinder 1, a guide piston 2, a guide piston stopper 4, a support rod 3 and magnets A and B. The side vertical surface of the guide piston 2 is arc-shaped structure. The diameter of the guide piston 2 corresponds to the internal rotary cutting arc surface of the diameter of the sphere. The magnets A and B are installed with a certain distance in the support cylinder 1, and the distance is small, the repulsion force is large. The change of the distance space can buffer and reduce vibration when vibration occurs.

[0035] When the air compressor works, it mainly generates axial vibration, horizontal vibration and vertical vibration. The uncertain direction vibration force generated by the interaction of axial vibration and horizontal vibration forces the support rod made of elastic material to elastically deform, so as to buffer the uncertain vibration force generated by the interaction of axial vibration and horizontal vibration. At the same time, since the side vertical surface of the guide piston 2 is arc-shaped structure or the internal rotary cutting arc surface of the diameter of the sphere corresponding to the diameter of the guide piston 2, the contact area between the guide piston 2 and the inner wall of the support cylinder 1 becomes smaller when the guide piston 2 moves downward, so that the friction between the guide piston 2 and the support cylinder 1 becomes smaller, which can more smoothly and timely buffer the vertical vibration. At the same time, since the side vertical surface of the guide piston 2 is arc-shaped structure or the internal rotary cutting arc surface of the diameter of the sphere corresponding to the diameter of the guide piston 2, the support rod 1 increases the freedom of 360-degree horizontal direction swing and inclination, so as to convert more axial vibration force and horizontal vibration force into vertical vibration force, buffer the kinetic energy of axial vibration and horizontal vibration when the air compressor works. At the same time, the elastic deformation of the support rod 1 converts part of the force generated by axial vibration and horizontal vibration into vertical direction. At the same time, the support rod 1 transmits the vertical vibration force generated by axial vibration, horizontal vibration and vertical vibration to the guide piston 2. The guide piston 1 drives the magnet B6 to extrude downward and the distance space of the magnet A5 to generate gradually increasing repulsion force, so as to buffer the vertical vibration force transmitted by the guide piston 2, thereby achieving the effect of shock absorption.

[0036] Embodiment three:

[0037] As shown in Figure 3 : the magnetic force damping spring includes a support cylinder 1, a guide force piston 2, a guide force piston stopper 4, a support rod 3 and a magnet A 5 and a magnet B 6; a plurality of magnets can be added between the magnet A 5 and the magnet B 6, and the magnetic poles of adjacent magnets are the same and face each other; a plurality of magnets can be added between the magnet A 5 and the magnet B 6, so that the magnetic force damping spring within a certain stroke can increase the damping intensity and carry out damping operation on a larger weight air compressor pump head.

[0038] Embodiment four:

[0039] As shown in Figure 4 : a ring-shaped magnet 7 can be added between the guide force piston 2 and the guide force piston stopper 4 of the magnetic force damping spring through the support rod 3, the magnetic poles of the ring-shaped magnet 7 and the magnet B 6 are the same and face each other; the inner diameter of the ring-shaped magnet 7 is greater than the outer diameter of the support rod 3; the ring-shaped magnet 7 can be added between the guide force piston 2 and the guide force piston stopper 4 through the support rod 3; and the magnetic poles of the ring-shaped magnet 7 and the magnet B 6 on the guide force piston are the same and face each other, the repulsive force generated can buffer the rebound force of the upward rebound of the guide force piston 2, and better vibration buffering effect is achieved.

[0040] Embodiment five:

[0041] As shown in Figure 5 : a plurality of magnets can be added between the magnet A 5 and the magnet B 6 of the magnetic force damping spring, and the magnetic poles of adjacent magnets are the same and face each other; a ring-shaped magnet 7 can be added between the guide force piston 2 and the guide force piston stopper 4 through the support rod 3; and the magnetic poles of the ring-shaped magnet 7 and the magnet B 6 are the same and face each other; a plurality of magnets can be added between the magnet A 5 and the magnet B 6, so that the magnetic force damping spring within a certain stroke can increase the damping intensity and carry out damping operation on a larger weight air compressor pump head.

[0042] In the magnetic force damping spring of the embodiments one to five, a ring-shaped magnet 7 can be added between the guide force piston 2 and the guide force piston stopper 4 through the support rod 3; and the magnetic poles of the ring-shaped magnet 7 and the magnet B 6 on the guide force piston 2 are the same and face each other, the repulsive force generated can buffer the rebound force of the upward rebound of the guide force piston, and better vibration buffering effect is achieved; in actual application, each magnet described above can be an electromagnet according to actual needs, and any structure of the support cylinder 1, the guide force piston 2 and the support rod 3 can be made of rigid material.

[0043] In the magnetic force damping spring of the embodiments one to five, the cylinder wall within the stroke range of the guide force piston 2 in the support cylinder 1 is made of wear-resistant material 8; and the manufacturing material outside the stroke of the support cylinder is made of elastic material 9. (As Figure 6(As shown)

[0044] In Implementation Schemes 1 to 5, the support cylinder 1 of the magnetic vibration damping spring is made of elastic material 9, and a thin-walled piston sleeve 10 made of wear-resistant material 8 is embedded in the inner wall of the cylinder within the stroke range of the inner guide piston; Figure 7 (As shown).

Claims

1. A magnetic force vibration reduction spring, comprising: The support cylinder, the force guide piston, the force guide piston stopper, the support rod and two or more magnets are characterized in that: the force guide piston and the magnets are arranged in the support cylinder; the upper part of the support cylinder is provided with the force guide piston stopper; the support cylinder is in a cylindrical structure, one end of which is sealed as a bottom surface, and the other end is an open structure for the support rod to pass through; the lower end of the support rod passes through the force guide piston stopper and is connected with the force guide piston, and the upper end of the support rod extends out of the opening at the upper end of the support cylinder.

2. A magnetic force vibration reduction spring according to claim 1, wherein: The inner bottom surface of the support cylinder is provided with a groove in which the magnet A is arranged; the force guide piston is in a columnar structure, the outer diameter of the force guide piston is smaller than the inner diameter of the support cylinder, and the lower bottom surface of the force guide piston is provided with a groove in which the magnet B is arranged.

3. A magnetic force vibration reduction spring according to claim 2, wherein: The magnetic poles of the magnet B and the magnet A are arranged in the same polarity and face each other.

4. A magnetic force vibration reduction spring according to claim 3, wherein: One or more magnets are arranged between the magnet A and the magnet B, and the magnetic poles of adjacent magnets face each other in the same polarity.

5. A magnetic force vibration reduction spring according to claim 1, wherein: An annular magnet is arranged between the force guide piston and the force guide piston stopper through the support rod, and the magnetic poles of the annular magnet and the magnet B face each other in the same polarity.

6. A magnetic force vibration reduction spring according to claim 1, wherein: The support rod is made of an elastic material in a columnar structure, and is fixedly arranged on the central position of the upper surface of the force guide piston.

7. A magnetic force vibration reduction spring according to claim 1, wherein: The force guide piston stopper is in an annular structure, the inner diameter of which is larger than the outer diameter of the support rod; and the edge of the inner diameter of the annular structure is in a chamfer structure.

8. A magnetic vibration-reducing spring according to claim 1, characterized in that: The side vertical surface of the force guide piston is in an arc structure.

9. A magnetic vibration-reducing spring according to claim 8, characterized in that: The arc structure of the side vertical surface of the force guide piston is an inner rotary cutting arc surface corresponding to the diameter of a sphere.

10. A magnetic vibration-reducing spring according to claim 1, characterized in that: The bottom surface of the support cylinder and the upper end of the support rod are provided with threaded holes.

11. A magnetic vibration-reducing spring according to claim 1, characterized in that: The bottom surface of the support cylinder and the upper end of the support rod are provided with threaded rods.

12. A magnetic vibration-reducing spring according to claim 1, characterized in that: An annular magnet is arranged between the force guide piston and the force guide piston stopper through the support rod, and the magnetic poles of the annular magnet and the magnet B face each other in the same polarity; and the inner diameter of the annular magnet is larger than the outer diameter of the support rod.

13. A magnetic vibration-reducing spring according to claim 1, characterized in that: One or more magnets are arranged between the magnet A and the magnet B, and the magnetic poles of adjacent magnets face each other in the same polarity.

14. A magnetic vibration-reducing spring according to claim 1, characterized in that: The support cylinder is made of an elastic material.

15. A magnetic vibration-reducing spring according to claim 1, characterized in that: The force guide piston is made of an elastic material.

16. A magnetic vibration-reducing spring according to claim 1, characterized in that: The force guide piston stopper is made of an elastic material.

17. A magnetic vibration-reducing spring according to any one of claims 1 to 16, characterized in that: The magnets are filled with an elastic material.

18. A magnetic vibration-reducing spring according to any one of claims 1 to 16, characterized in that: A pressure spring is arranged between the magnets.

19. A magnetic vibration-reducing spring according to any one of claims 1 to 16, characterized in that: The magnets are electromagnets.

20. A magnetic vibration-reducing spring according to claim 1, characterized in that: The cylinder wall within the stroke range of the force guide piston in the support cylinder is made of a wear-resistant material; and the manufacturing material outside the stroke of the support cylinder is made of an elastic material.

21. A magnetic vibration-reducing spring according to claim 1, characterized in that: The support cylinder is made of an elastic material, and the cylinder wall within the stroke range of the force guide piston in the support cylinder is inlaid with a thin-walled piston sleeve made of a wear-resistant material.

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