Vibration isolator with limiting function
阅读说明:本技术 具有限位功能的隔振器 (Vibration isolator with limiting function ) 是由 肖新标 梁树林 周信 刘宇航 祁孟盂 张保军 于 2019-12-19 设计创作,主要内容包括:本发明公开了一种具有限位功能的隔振器,包括上壳体、位于所述上壳体下方且与所述上壳体配合连接的下壳体、位于所述上壳体与所述下壳体之间的钢弹簧组件以及设置在所述上壳体与所述下壳体之间的高度调节机构,且所述钢弹簧组件位于所述高度调节机构的外围;其结构简单,使用可靠稳定,通过上壳体与下壳体进行周向限位,通过限位柱进行轴向限位,从而形成三向限位结构,实现三向限位功能,可有效避免隔振重物产生较大位移,提高大载重、抗冲击性能,同时还能起到保护钢弹簧的作用。(The invention discloses a vibration isolator with a limiting function, which comprises an upper shell, a lower shell, a steel spring assembly and a height adjusting mechanism, wherein the lower shell is positioned below the upper shell and is in matched connection with the upper shell; its simple structure uses reliably stably, and it is spacing to carry out circumference through last casing and casing down, carries out the axial through spacing post spacing to form three-dimensional limit structure, realize three-dimensional limit function, can effectively avoid the vibration isolation heavy object to produce great displacement, improve big load, shock resistance, can also play the effect of protection steel spring simultaneously.)
1. The vibration isolator with the limiting function is characterized by comprising an upper shell (1), a lower shell (2) which is positioned below the upper shell (1) and is in fit connection with the upper shell (1), a steel spring assembly (3) positioned between the upper shell (1) and the lower shell (2) and a height adjusting mechanism arranged between the upper shell (1) and the lower shell (2), wherein the steel spring assembly (3) is positioned at the periphery of the height adjusting mechanism;
the height adjusting mechanism comprises a limiting column (4) arranged in the lower shell (2), a central column (5) arranged on the bottom end face of the upper shell (1) and connected with the limiting column (4) in a matched mode, and a height adjusting gasket (6) arranged on the upper end face of the limiting column (4) and connected with the central column (5) in a matched mode.
2. The vibration isolator with the limiting function according to claim 1, wherein the lower shell (2) comprises a base (20), a supporting platform (21) and a supporting column (22) arranged between the base (20) and the supporting platform (21), the limiting column (4) is located in the supporting column (22), a limiting hole (23) communicated with the limiting column (4) is formed in the supporting platform (21), and the central column (5) penetrates through the limiting hole (23) and is respectively connected with the height adjusting gasket (6) and the limiting column (4) in a matched manner.
3. The vibration isolator with the limiting function according to claim 2, wherein a threaded hole (40) communicated with the limiting hole (23) is formed in the limiting column (4), a threaded section (50) matched with the threaded hole (40) is formed in the lower end of the central column (5), and the threaded section (50) penetrates through the limiting hole (23) and the height adjusting gasket (6) respectively and is connected with the threaded hole (40) in the limiting column (4) in a matched mode.
4. The vibration isolator with limiting function according to claim 2, characterized in that a boss (10) is arranged at the lower end of the upper shell (1), a groove (11) matched with the boss (10) is arranged on the support platform (21) of the lower shell (2), and the boss (10) is in clearance fit with the groove (11).
5. The vibration isolator with limiting function according to claim 4, characterized in that a mounting hole (12) is formed in the boss (10) of the upper housing (1), an embedding platform (13) corresponding to the mounting hole (12) is formed in the groove (11) of the supporting platform (21), the steel spring assembly (3) is arranged between the embedding platform (13) and the mounting hole (12), and the mounting hole (12) is located at the periphery of the central column (5).
6. The vibration isolator with limiting function according to claim 1, characterized in that a pre-pressing component (14) is arranged between the upper shell (1) and the lower shell (2), the upper end of the pre-pressing component (14) is arranged inside the upper shell (1), and the bottom end of the pre-pressing component (14) penetrates through the lower shell (2).
7. The vibration isolator with limiting function according to claim 6, characterized in that the pre-pressing assembly (14) comprises a screw rod (140) and nuts (141) which are connected to two ends of the screw rod (140) in a matching way, and two ends of the screw rod (140) respectively penetrate through the upper shell (1) and the lower shell (2).
8. The vibration isolator with the limiting function according to claim 7, wherein a mounting opening (142) for mounting a nut (141) is formed in the side surface of the upper shell (1), and a mounting opening (142) for mounting the nut (141) is formed between the bottom surface of the support platform (21) of the lower shell (2) and the end surface of the base (20) and the side surface of the support column (22).
9. The vibration isolator with limiting function according to any one of claims 1 to 8, characterized in that the limiting column (4) is a cylindrical structure with steps.
10. The vibration isolator with limiting function according to claim 9, characterized in that a stop ring (15) is arranged at the upper end of the threaded section (50) of the central column (5).
Technical Field
The invention relates to the technical field of vibration reduction, in particular to a vibration isolator with a limiting function.
Background
The steel spring has the advantages of uniform material, stable performance, high bearing capacity, good durability, reliable calculation and the like. The vibration isolator taking the steel spring as the main body at present has the advantages of good vibration damping effect, stable performance, long service life and the like, and is widely adopted. However, in the case of special conditions, such as large load, large impact, etc., the common steel spring vibration isolator cannot meet the use requirements, so that it is very valuable to design a high-performance vibration isolator with large load and impact resistance to be applied to various working conditions.
Disclosure of Invention
The invention aims to provide a vibration isolator with a limiting function, and aims to solve the problems of large load and weak impact resistance of the conventional vibration isolator.
The technical scheme for solving the technical problems is as follows: the vibration isolator with the limiting function comprises an upper shell, a lower shell, a steel spring assembly and a height adjusting mechanism, wherein the lower shell is positioned below the upper shell and is in matched connection with the upper shell;
the height adjusting mechanism comprises a limiting column arranged in the lower shell, a central column arranged on the bottom end face of the upper shell and connected with the limiting column in a matched mode, and a height adjusting gasket arranged on the upper end face of the limiting column and connected with the central column in a matched mode.
Further, the lower shell comprises a base, a supporting table and a supporting column arranged between the base and the supporting table, the limiting column is located in the supporting column, a limiting hole communicated with the limiting column is formed in the supporting table, and the central column penetrates through the limiting hole and is respectively connected with the height adjusting gasket and the limiting column in a matched mode.
Furthermore, a threaded hole communicated with the limiting hole is formed in the limiting column, a threaded section matched with the threaded hole is formed in the lower end of the central column, and the threaded section penetrates through the height adjusting gasket and the limiting hole respectively and is connected with the threaded hole in the limiting column in a matched mode.
Furthermore, the lower end of the upper shell is provided with a boss, a supporting table of the lower shell is provided with a groove matched with the boss, and the boss is in clearance fit with the groove.
Furthermore, a mounting hole is formed in the boss of the upper shell, an embedding platform corresponding to the mounting hole is arranged in the groove of the lower shell supporting platform, the steel spring assembly is arranged between the embedding platform and the mounting hole, and the mounting hole is located on the periphery of the central column.
Further, go up the casing with be provided with pre-compaction subassembly between the casing down, just the upper end of pre-compaction subassembly set up in inside the last casing, the bottom of pre-compaction subassembly runs through the casing down.
Further, the pre-compaction subassembly includes that screw rod and cooperation are connected the nut at screw rod both ends, just the both ends of screw rod run through respectively go up casing and lower casing.
Furthermore, the side surface of the upper shell is provided with an installation opening for installing a nut, and an installation opening for installing the nut is formed between the bottom surface of the support platform of the lower shell and the end surface of the base as well as the side surface of the support column.
Further, the spacing post is the cylindric structure that has the ladder.
Furthermore, a stop ring is arranged at the upper end of the threaded section of the central column.
The invention has the following beneficial effects: the vibration isolator with the limiting function is simple in structure and reliable and stable in use, the upper shell and the lower shell are circumferentially limited, and the limiting columns are axially limited, so that a three-way limiting structure is formed, the three-way limiting function is realized, large displacement of a vibration isolation heavy object can be effectively avoided, the large load and impact resistance are improved, the steel spring can be protected, the service life of the vibration isolator is prolonged, and larger bearing capacity is provided in a limited space through the strong supporting rigidity of the steel spring component; through the height adjusting gasket, the axial limiting height is adjusted according to the actual bearing difference, and the accuracy of the axial limiting gap of the vibration isolator is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of the upper housing of the present invention;
FIG. 5 is a schematic view of the structure of the lower housing of the present invention;
FIG. 6 is a schematic view of a spacing pillar according to the present invention;
the reference numerals shown in fig. 1 to 6 are respectively expressed as: 1-upper shell, 2-lower shell, 3-steel spring component, 4-limiting column, 5-central column, 6-height adjusting gasket, 20-base, 21-supporting table, 22-supporting column, 23-limiting hole, 40-threaded hole, 50-threaded section, 10-boss, 11-groove, 12-mounting hole, 13-embedding table, 14-prepressing component, 140-screw rod, 141-nut and 142-mounting port.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, the vibration isolator with a limiting function comprises an
The height adjusting mechanism comprises a
In order to improve the structural reliability and the service performance of the
In order to improve the stability of the matching connection between the
In order to improve the installation reliability of the
In order to facilitate the installation of the
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
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