All-metal miniature resonance-peak-free vibration isolator

Abstract

The utility model relates to an all-metal miniature harmonic-peak-free vibration isolator which comprises an installation screw, a radial convex ring is arranged on the upper portion of the installation screw, and an annular upper elastic piece and an annular lower elastic piece are arranged on the upper side and the lower side of the radial convex ring respectively. An upper inner shaft shoulder and a lower inner shaft shoulder which are formed in the outer shell part are in abutting fit with the upper elastic part and the lower elastic part respectively; a mounting structure of the vibration isolation equipment is arranged on the shell part, and the shell part is suitable for performing axial and radial compression on the two elastic parts; and the damping mechanism is arranged between the shell part and the mounting screw, and the damping mechanism provides damping force for axial and radial movement of the shell part. The vibration isolator has higher impact resistance in the axial direction and the radial direction, the service life of the vibration isolator is prolonged, the elastic piece is made of metal rubber, corrosion resistance is higher, and the damping mechanism arranged on the vibration isolator can control dry friction damping between the outer shell piece and an installation screw so as to meet the requirement for restraining resonance.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration isolators, in particular to an all-metal miniature vibration isolator without resonance peak. Background Art

[0002] The vibration isolation equipment is installed on the base through multiple vibration isolators. In the past, the vibration isolators mainly used T-shaped rubber parts as vibration damping pads, such as Figure 1 and Figure 2 As shown, the vibration isolator 8 includes a T-shaped sleeve 81, a pair of T-shaped vibration-damping pads 82, a washer 83, and a screw 84. The two T-shaped vibration-damping pads 82 are sleeved on the sleeve 81, and the screw 84 passes through the washer 83 and the T-shaped sleeve 81 to connect to the base 10. When the equipment base plate of the vibration isolation device is matched with the mounting screws through the T-shaped rubber pad, the axial and radial material support is insufficient, and it cannot withstand the long-term vibration impact of the vibration isolator. In addition, the T-shaped rubber pad will resonate during use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide an all-metal miniature resonance-free peak vibration isolator to solve the technical problems that previous vibration isolators cannot effectively suppress resonance and are easily damaged and aged under harsh vibration shock and climatic environments.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] Provided is an all-metal miniature non-resonant peak vibration isolator, comprising

[0006] A mounting screw, the lower end of which is provided with a threaded section for connecting to the base body, and the upper part of which is provided with a radial convex ring, and the upper and lower sides of the radial convex ring are respectively provided with an annular upper elastic member and a lower elastic member;

[0007] An outer shell is sleeved on the outer portion of the upper elastic member and the lower elastic member, and an upper inner shoulder and a lower inner shoulder formed in the outer shell are respectively in contact with the upper elastic member and the lower elastic member; a mounting structure for a vibration isolation device is provided on the outer shell, and the outer shell is suitable for axially and radially compressing the two elastic members;

[0008] The damping mechanism is arranged between the housing member and the mounting screw, and provides a damping force to the axial and radial movements of the housing member.

[0009] Furthermore, the damping mechanism includes

[0010] An adjusting screw sleeve connected to the lower side of the housing;

[0011] The cone ring is located in the adjusting screw sleeve, the upper end surface of the cone ring abuts against the lower end surface of the shell member, and a cone cavity with a narrow upper part and a wide lower part is formed in the cone ring;

[0012] The opening and closing ring is located in the conical cavity, the outer wall of the opening and closing ring forms an outer conical surface, and a conical surface fit is formed between the opening and closing ring and the conical surface. The mounting screw passes through the inner hole of the opening and closing ring, and the outer wall surface of the mounting screw contacts the inner hole surface. The lower end of the opening and closing ring abuts against the bottom surface of the adjusting screw sleeve. By controlling the axial position of the adjusting screw sleeve on the outer shell, it is suitable for adjusting the dry friction damping between the opening and closing ring and the mounting screw.

[0013] Furthermore, at least one butterfly spring is provided between the opening and closing ring and the bottom surface of the adjusting screw sleeve, and the mounting screw passes through the butterfly spring.

[0014] Furthermore, the housing includes

[0015] The housing is a cylindrical structure with an outer wall formed with an external thread. The housing is sleeved on the outer sides of the upper elastic member and the lower elastic member. A first inner retaining ring is formed on the upper end of the housing to form an upper inner shoulder for cooperating with the upper elastic member.

[0016] The base is a cylindrical structure, connected to the lower end of the shell, and a second inner retaining ring is formed at the lower end of the base to form a lower inner shoulder for cooperating with the lower elastic member;

[0017] A locking nut is connected to the upper end of the shell, and a clamping area for installing the vibration isolation device is formed between the locking nut and the base.

[0018] Furthermore, an upper baffle is provided at the upper end of the upper elastic member, the upper baffle is sleeved on the mounting screw, the upper baffle abuts against the axial surface of the upper inner shoulder, and a radial movement gap is retained between the upper baffle and the radial surface of the upper inner shoulder;

[0019] A lower baffle is provided at the lower end of the lower elastic member, and the lower baffle is sleeved on the mounting screw. The lower baffle abuts against the axial surface of the lower inner shoulder and retains a radial movement gap with the radial surface of the lower inner shoulder.

[0020] Furthermore, a mounting hole is provided on the equipment bottom plate of the vibration isolation device, and the shell passes through the mounting hole.

[0021] Furthermore, the upper elastic member and the lower elastic member are both made of metal rubber.

[0022] The beneficial effects of the utility model are:

[0023] The improved vibration isolator has an elastic part with a cylindrical ring structure, which makes the vibration isolator more impact-resistant in the axial and radial directions and extends the service life of the vibration isolator. The elastic part is made of metal rubber, which has stronger corrosion resistance. The damping mechanism set on the vibration isolator can control the dry friction damping between the outer shell and the mounting screws to meet the needs of suppressing resonance.

[0024] A disc spring is arranged between the opening and closing ring and the adjusting screw sleeve to compensate for the wear of the friction surface of the damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 and Figure 2 It is a schematic diagram of the vibration isolation equipment being mounted on a base through a vibration isolator;

[0027] Figure 3 This is a schematic diagram of the utility model's all-metal miniature non-resonant peak vibration isolator;

[0028] Among them, 10, base, 11, vibration isolation equipment, 11-1, equipment bottom plate,

[0029] 2. Mounting screws, 21. Radial convex ring;

[0030] 31. upper elastic member, 32. lower elastic member;

[0031] 4. Housing, 41. First inner retaining ring, 5. Base, 51. Second inner retaining ring, 6. Locking nut;

[0032] 71. Upper baffle, 72. Lower baffle.

[0033] 9. Damping mechanism, 91. Adjusting screw sleeve, 92. Conical ring, 93. Opening and closing ring, 94. Butterfly spring. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] The present application provides an all-metal miniature non-resonant peak isolator, which is described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments of the present application. In addition, in the following embodiments, the description of each embodiment has its own emphasis. For parts not detailed in a particular embodiment, please refer to the relevant description of other embodiments.

[0036] To address the technical issues in existing vibration isolators, which cannot effectively suppress resonance and are susceptible to damage and aging in harsh vibration, shock, and climate environments, an embodiment of the present application provides an all-metal miniature resonance-free vibration isolator, which is described in detail below.

[0037] like Figure 3 As shown, an all-metal miniature non-resonant peak vibration isolator includes

[0038] The mounting screw 2 has a threaded section at its lower end for connecting with the base 10 and a radial convex ring 21 at its upper portion. An annular upper elastic member 31 and a lower elastic member 32 are provided on the upper and lower sides of the radial convex ring 21 respectively.

[0039] The outer shell is sleeved on the outer portion of the upper elastic member 31 and the lower elastic member 32. The upper inner shoulder and the lower inner shoulder formed in the outer shell are respectively in contact with the upper elastic member 31 and the lower elastic member 32.

[0040] The damping mechanism 9 is provided between the housing member and the mounting screw 2 , and provides a damping force to the axial and radial movements of the housing member.

[0041] The vibration isolation device 11 is fixedly connected to the outer shell via the device base plate 11-1. When the vibration isolation device 11 is subjected to axial or radial vibration impact, the outer shell and the two elastic members are compressed in the axial and radial directions to achieve vibration reduction of the vibration isolation device 11. At the same time, the vibration isolation device 11 suppresses resonance through the damping force of the damping mechanism 9.

[0042] Specifically, as an optional implementation in this embodiment, Figure 3 As shown, the housing includes

[0043] The housing 4 is a cylindrical structure with an external thread formed on its outer wall. The housing 4 is sleeved on the outer sides of the upper elastic member 31 and the lower elastic member 32. A first inner retaining ring 41 is formed on the upper end of the housing 4 to form an upper inner shoulder for cooperating with the upper elastic member 31.

[0044] The base 5 is a cylindrical structure connected to the lower end of the housing 4. The lower end of the base 5 is formed with a second inner retaining ring 51 so that a lower inner shoulder for cooperating with the lower elastic member 32 is formed in the base 5.

[0045] The locking nut 6 is connected to the upper end of the housing 4 , and a clamping area for mounting the vibration isolation device 11 is formed between the locking nut 6 and the base 5 .

[0046] The device base plate 11-1 of the vibration isolation device 11 is installed in the supporting area. The device base plate 11-1 is horizontally abutted against the shell 4 to limit the lateral movement of the vibration isolation device 11. The locking nut 6 axially locks the device base plate 11-1 to limit the vertical movement of the vibration isolation device 11. After the vibration isolation device 11 is locked to the outer shell, the axial and radial vibration impacts of the vibration isolation device 11 are applied to the upper and lower elastic parts.

[0047] Specifically, as an optional implementation in this embodiment, Figure 3As shown, a mounting hole is provided on the equipment base plate 11 - 1 of the vibration isolation device 11 , and the housing 4 passes through the mounting hole.

[0048] A slight gap is kept between the mounting hole and the housing 4 to improve the synchronization between the vibration isolation device 11 and the outer shell in the horizontal direction.

[0049] Specifically, as an optional implementation in this embodiment, Figure 3 As shown, an upper baffle 71 is provided on the upper end of the upper elastic member 31, and the upper baffle 71 is sleeved on the mounting screw 2. The upper baffle 71 abuts against the axial surface of the upper inner shoulder and retains a radial movement gap with the radial surface of the upper inner shoulder;

[0050] A lower baffle 72 is provided at the lower end of the lower elastic member 32 , and the lower baffle 72 is sleeved on the mounting screw 2 . The lower baffle 72 abuts against the axial surface of the lower inner shoulder and retains a radial movement gap with the radial surface of the lower inner shoulder.

[0051] The upper baffle 71 and the lower baffle 72 are annular gaskets, and a few inches of installation clearance is reserved between the inner holes of the baffles and the installation screws 2 .

[0052] Transverse movement gaps are provided between the outer walls of the two baffles, the outer wall of the radial protruding ring 21 and the inner wall of the housing 4 .

[0053] A lateral movement gap is also retained between the first inner stop ring 41 , the second inner stop ring 51 and the outer wall of the mounting screw 2 .

[0054] The installation structure of the upper and lower elastic members 31, 32 within the housing is as follows: the inner hole of the upper elastic member 31 contacts the outer wall of the mounting screw 2, the lower end surface of the upper elastic member 31 contacts the radial protruding ring 21, the upper elastic member 31 contacts the first inner retaining ring 41 via the upper retaining plate 71, and the outer wall of the upper elastic member 31 contacts the inner wall of the housing 4. The inner hole of the lower elastic member 32 contacts the outer wall of the mounting screw 2, the upper end surface of the lower elastic member 32 contacts the radial protruding ring 21, the lower elastic member 32 contacts the second inner retaining ring 51 via the lower retaining plate 72, and the outer wall of the lower elastic member 32 contacts the inner wall of the housing 4.

[0055] The circumferential tightness of the two elastic members in the outer shell is adjusted by rotating the base 5, which is threadedly connected to the outer wall of the shell 4. By rotating the base 5, its axial position can be adjusted, thereby controlling the axial tightness of the two elastic members.

[0056] In this embodiment, both the upper elastic member 31 and the lower elastic member 32 are made of metal rubber. Metal rubber is a homogeneous elastic porous material formed by cold stamping metal wires arranged in an orderly manner in a mold. Metal rubber has excellent wear resistance, strong electrical conductivity, strong impact resistance, and good aging resistance.

[0057] Specifically, as an optional implementation in this embodiment, Figure 3 As shown, the damping mechanism 9 includes

[0058] An adjusting screw sleeve 91, wherein the adjusting screw sleeve 91 is threadedly connected to the base 5 in the housing;

[0059] The cone ring 92 is located inside the adjusting screw sleeve 91. The upper end surface of the cone ring 92 abuts against the lower end surface of the outer shell, forming a cone cavity with a narrow upper part and a wide lower part inside the cone ring 92.

[0060] The opening and closing ring 93 is located in the conical cavity. The outer wall of the opening and closing ring 93 forms an outer conical surface. A conical surface fit is formed between the opening and closing ring 93 and the conical surface. The mounting screw 2 passes through the inner hole of the opening and closing ring 93. The outer wall surface of the mounting screw 2 contacts the inner hole surface. The lower end of the opening and closing ring 93 abuts against the bottom surface of the adjusting screw sleeve 91.

[0061] The opening and closing ring 93 is cut into three equal parts, and a gap that can be opened and closed is left between the three parts. By rotating the adjusting screw sleeve 91, the size of the horizontal and vertical dry friction damping can be adjusted to meet the need of suppressing resonance.

[0062] The mounting screw 2 passes through the adjusting screw sleeve 91 , and a lateral movement gap is provided between the adjusting screw sleeve 91 and the mounting screw 2 .

[0063] Specifically, as an optional implementation in this embodiment, Figure 3 As shown, two butterfly springs 94 are provided between the opening and closing ring 93 and the bottom surface of the adjusting screw sleeve 91, and the mounting screw 2 passes through the butterfly springs 94. The butterfly springs 94 provided can compensate for the wear of the friction surface of the damper.

[0064] Working principle of the damping mechanism 9: Rotating the adjusting screw sleeve 91 can control the axial position below the base 5. The adjusting screw sleeve 91 axially abuts the opening and closing ring 93, that is, the dry friction damping between the opening and closing ring 93 and the mounting screw 2 can be adjusted. When the vibration isolation device 11 is vibrated, the outer shell and the damping mechanism 9 are vibrated synchronously. There is dry friction damping between the damping mechanism 9 and the mounting screw 2, which can effectively suppress the resonance generated by the vibration isolation device 11.

[0065] In this embodiment, all components are made of metal, so that the all-metal vibration isolator can adapt to various harsh environments.

[0066] In this embodiment, the lower portion of the mounting screw 2 is a threaded section, and the upper portion is a polished rod section, and the radial protruding ring 21 is integrally formed on the polished rod section.

[0067] Installation method of the utility model all-metal miniature non-resonant peak vibration isolator:

[0068] First, install the upper elastic member 31, the upper baffle 71 and the shell 4 on one side of the screw 2, and then install the lower elastic member 32, the lower baffle 72 and the base 5 on the other side of the screw 2. The base 5 is threadedly connected to the shell 4, so that the upper elastic member 31, the lower elastic member 32 and a pair of baffles are installed in the chamber of the shell 4. At this time, the preliminary assembly is completed, and then the damping mechanism 9 is installed under the base 5. The adjusting screw sleeve 91 is connected to the external thread of the base 5, the axial position of the adjusting screw sleeve 91 is controlled, and the dry friction damping between the opening and closing ring 93 and the mounting screw 2 is adjusted.

[0069] When the vibration isolation device 11 is installed on the base 10 through the vibration isolator, the mounting screw 2 is fixedly connected to the base 10, and an axial movement space is left between the bottom of the adjusting screw sleeve 91 and the base 10. Then the vibration isolation device 11 is installed, and the device base plate 11-1 of the vibration isolation device 11 is sleeved on the shell 4 and placed on the base 5. Finally, the locking nut 6 is screwed on and clamped on the base 5 through the device base plate 11-1.

[0070] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0071] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0072] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0073] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. There may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interface, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0074] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0075] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0076] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. An all-metal miniature non-resonant peak vibration isolator, characterized in that it includes A mounting screw (2) is provided with a threaded section at its lower end for connecting with the base (10), and a radial convex ring (21) is provided at its upper portion, and an annular upper elastic member (31) and a lower elastic member (32) are provided on the upper and lower sides of the radial convex ring (21); An outer shell is sleeved on the outside of the upper elastic member (31) and the lower elastic member (32), and an upper inner shoulder and a lower inner shoulder formed in the outer shell respectively abut against the upper elastic member (31) and the lower elastic member (32); a mounting structure for the vibration isolation device (11) is provided on the outer shell, and the outer shell is suitable for axially and radially compressing the two elastic members; A damping mechanism (9) is provided between the housing member and the mounting screw (2), wherein the damping mechanism (9) provides a damping force for the axial and radial movement of the housing member; The damping mechanism (9) comprises An adjusting screw sleeve (91) connected below the housing member; A conical ring (92) is located inside the adjusting screw sleeve (91), the upper end surface of the conical ring (92) abuts against the lower end surface of the housing, and a conical cavity with a narrow upper portion and a wide lower portion is formed inside the conical ring (92); The opening and closing ring (93) is located in the conical cavity. The outer wall of the opening and closing ring (93) forms an outer conical surface. The opening and closing ring (93) and the conical surface form a conical surface fit. The mounting screw (2) passes through the inner hole of the opening and closing ring (93). The outer wall surface of the mounting screw (2) contacts the inner hole surface. The lower end of the opening and closing ring (93) abuts against the bottom surface of the adjusting screw sleeve (91). By controlling the axial position of the adjusting screw sleeve (91) on the outer shell, it is suitable to adjust the dry friction damping between the opening and closing ring (93) and the mounting screw (2).

2. The all-metal miniature non-resonant peak vibration isolator according to claim 1 is characterized in that: At least one butterfly spring (94) is provided between the opening and closing ring (93) and the bottom surface of the adjusting screw sleeve (91), and the mounting screw (2) passes through the butterfly spring (94).

3. The all-metal miniature non-resonant peak vibration isolator according to claim 1 is characterized in that: The housing comprises The housing (4) is a cylindrical structure with an outer wall formed with an external thread. The housing (4) is sleeved on the outside of the upper elastic member (31) and the lower elastic member (32). A first inner retaining ring (41) is formed at the upper end of the housing (4) so ​​that an upper inner shoulder for cooperating with the upper elastic member (31) is formed in the housing (4). The base (5) is a cylindrical structure, the base (5) is connected to the lower end of the shell (4), and a second inner retaining ring (51) is formed at the lower end of the base (5) so that a lower inner shoulder for cooperating with the lower elastic member (32) is formed in the base (5); A locking nut (6) is connected to the upper end of the housing (4), and a clamping area for installing a vibration isolation device (11) is formed between the locking nut (6) and the base (5).

4. The all-metal miniature non-resonant peak vibration isolator according to claim 3 is characterized in that: An upper baffle (71) is provided at the upper end of the upper elastic member (31), and the upper baffle (71) is sleeved on the mounting screw (2). The upper baffle (71) abuts against the axial surface of the upper inner shaft shoulder and retains a radial movement gap with the radial surface of the upper inner shaft shoulder. A lower baffle (72) is provided at the lower end of the lower elastic member (32), and the lower baffle (72) is sleeved on the mounting screw (2). The lower baffle (72) abuts against the axial surface of the lower inner shoulder and retains a radial movement gap with the radial surface of the lower inner shoulder.

5. The all-metal miniature non-resonant peak vibration isolator according to claim 3 is characterized in that: A mounting hole is provided on the equipment base plate (11-1) of the vibration isolation equipment (11), and the housing (4) passes through the mounting hole.

6. The all-metal miniature non-resonant peak vibration isolator according to claim 3 is characterized in that: The upper elastic member (31) and the lower elastic member (32) are both made of metal rubber.

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