CN216242000U - Vibration reduction base capable of maintaining posture - Google Patents
Vibration reduction base capable of maintaining posture Download PDFInfo
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- CN216242000U CN216242000U CN202122142676.2U CN202122142676U CN216242000U CN 216242000 U CN216242000 U CN 216242000U CN 202122142676 U CN202122142676 U CN 202122142676U CN 216242000 U CN216242000 U CN 216242000U
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- supporting plate
- steel wire
- wire rope
- vertical guide
- lower supporting
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Abstract
The utility model relates to a vibration damping base capable of keeping a posture, which comprises an upper supporting plate, a lower supporting plate, a plurality of steel wire vibration dampers and a plurality of vertical guide assemblies, wherein the steel wire vibration dampers are arranged on the upper supporting plate; the upper supporting plate and the lower supporting plate are coaxially arranged along the upper direction and the lower direction, the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are uniformly arranged between the upper supporting plate and the lower supporting plate along the circumferential direction, and the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are arranged in a staggered mode in the circumferential direction: the two steel wire rope clamping blocks of each steel wire rope shock absorber are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate; two guide matching assemblies of the plurality of vertical guide assemblies are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate. The vibration damping base can achieve a good vibration damping effect, and can keep the attitude of the inertial equipment.
Description
Technical Field
The utility model belongs to the technical field of inertial navigation, relates to a vibration damping base structure, and particularly relates to a vibration damping base capable of keeping a posture.
Background
In the inertial navigation system, inertial equipment is generally installed above a vibration damping base, and after a carrier bears external vertical impact, the carrier can generate vertical vibration, so that the inertial equipment is influenced. In order to meet the vibration reduction requirement of the inertial equipment on the vertical vibration of the carrier, the attitude precision of the inertial equipment is kept while vibration reduction is carried out.
The existing vibration damping base generally comprises an upper supporting plate, a lower supporting plate and a plurality of vibration damping component assemblies connected with the upper supporting plate and the lower supporting plate, wherein the plurality of vibration damping components are obliquely and alternately arranged, the upper end of each vibration damping component is connected with the upper supporting plate, and the lower end of each vibration damping component is connected with the lower supporting plate. The vibration reduction base can achieve a good vibration reduction effect, but the upper supporting plate cannot be prevented from twisting and translating relative to the lower tray, so that the attitude precision of the inertial equipment cannot be accurately kept.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a vibration damping base capable of maintaining the posture.
The purpose of the utility model is realized by the following technical scheme:
the utility model provides a but damping base that gesture was kept, includes mounting plate and bottom plate, its characterized in that: the steel wire vibration absorber comprises a plurality of steel wire vibration absorbers and a plurality of vertical guide assemblies;
the upper supporting plate and the lower supporting plate are coaxially arranged along the upper direction and the lower direction, the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are uniformly arranged between the upper supporting plate and the lower supporting plate along the circumferential direction, and the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are arranged in a staggered mode in the circumferential direction: the two steel wire rope clamping blocks of each steel wire rope shock absorber are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate; two guide matching assemblies of the plurality of vertical guide assemblies are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate.
Further: the steel wire shock absorber is 4, vertical direction subassembly is 4.
Further: the steel wire shock absorber adopts a GSG-80 type steel wire rope shock absorber.
Further: the vertical guide assembly adopts a MYAK type high-precision guide pillar, a guide sleeve part of the guide pillar is fixedly connected with the upper supporting plate, and a guide shaft part of the guide pillar is fixedly connected with the lower supporting plate.
Further, the method comprises the following steps: the upper end of the lower supporting plate and the lower end of the upper supporting plate are provided with positioning grooves corresponding to the connecting positions of each vertical guide assembly, the positioning grooves on the upper portion are in embedded fit with the base plate of the guide sleeve portion, the positioning grooves on the lower portion are in embedded fit with the base plate of the guide column portion, threaded holes are machined in each positioning groove, and the vertical guide assemblies are installed between the upper supporting plate and the lower supporting plate through connecting screws.
Further: the steel wire rope shock absorber is characterized in that a positioning boss is arranged at the connecting position of the upper end of the lower supporting plate and the lower end of the lower supporting plate, which corresponds to each steel wire rope clamping block, the positioning boss located on the upper portion is in contact fit with the steel wire rope clamping block located on the upper portion, the positioning boss located on the lower portion is in contact fit with the steel wire rope clamping block located on the lower portion, threaded holes are machined in the two ends of each positioning boss, and the steel wire rope shock absorber is installed between the upper supporting plate and the lower supporting plate through installation screws.
The utility model has the advantages and positive effects that:
1. this damping base plays the motion guide effect through connecting a plurality of vertical direction subassemblies between the layer board from top to bottom, has avoided the layer board to take place to twist reverse and the translation for the layer board down, and then has guaranteed the gesture precision of the inertial equipment of installing on the layer board, and under the condition that vertical direction subassembly adopted MYAK type high accuracy guide pillar, the gesture change of inertial equipment was superior to 30 ".
2. According to the vibration reduction base, the steel wire rope vibration absorbers and the vertical guide assemblies are arranged in a staggered mode along the circumferential direction, and the vibration reduction base is guaranteed to be stressed evenly in the working process through the uniform distribution of the steel wire rope vibration absorbers, so that the vertical guide assemblies are guaranteed not to be interfered by torsional moment, the upper supporting plate is guaranteed to move under the guide of the vertical guide assemblies, and the accurate horizontal posture is guaranteed.
3. The vibration reduction base is simple in overall structure and convenient to connect among the components.
Drawings
FIG. 1 is a schematic structural view of a vibration dampening base of the present invention;
FIG. 2 is a schematic structural view of the upper plate of the present invention;
FIG. 3 is a schematic view of the construction of the lower plate of the present invention;
FIG. 4 is a schematic structural view of a wire rope damper;
fig. 5 is a schematic view of the structure of the vertical guide assembly.
Detailed Description
The structure of the present invention will be further described by way of examples with reference to the accompanying drawings. It is to be understood that this embodiment is illustrative and not restrictive.
A vibration damping base capable of maintaining posture is disclosed, please refer to FIGS. 1-5, the utility model points are; mainly include top plate 1, bottom plate 4, a plurality of wire rope shock absorbers 3 and a plurality of vertical direction subassembly 2. The steel wire rope shock absorber is composed of a spiral steel wire rope 3.1 and two groups of steel wire rope clamping blocks 3.2 clamped on two sides of the steel wire rope, and screw holes 3.3 are formed in the clamping blocks and used for connecting other parts. Vertical direction subassembly comprises uide bushing part 2.1 and uide bushing part 2.2, and both cartridge cooperations all set up bed plate 2.3 at the tip of uide bushing and the tip of guide shaft, set up screw hole 2.4 on the bed plate for connect other parts.
The upper supporting plate is used for mounting inertial equipment, and the lower supporting plate is used for mounting the attitude-keeping shock absorber on a base of the carrier; the steel wire rope shock absorber is used for absorbing vertical vibration and attenuating the vibration to the bearable range of inertial equipment; the vertical guide assembly plays a role in guiding, and the upper supporting plate is prevented from twisting and translating relative to the lower supporting plate, so that the aim of improving the attitude retentivity of the inertial equipment is fulfilled.
The upper supporting plate and the lower supporting plate are coaxially arranged along the vertical direction, the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are uniformly arranged between the upper supporting plate and the lower supporting plate along the circumferential direction, and the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are arranged in a staggered mode in the circumferential direction. The two steel wire rope clamping blocks of each steel wire rope shock absorber are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate; two guide matching assemblies of the plurality of vertical guide assemblies are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate;
the number of the steel wire rope dampers is preferably, but not limited to, 4, and the number of the vertical guide assemblies is matched with that of the steel wire rope dampers.
The steel wire rope damper is preferably but not limited to GSG-80 steel wire rope damper, and the rigidity has gradually-softened nonlinearity. The steel wire rope vibration absorber is harder at the vibration isolation part, thereby ensuring the stability of the equipment. Along with the increase of the amplitude, the vibration isolator gradually softens, so that the natural frequency is far away from the excitation frequency, and the vibration isolation effect on the system is achieved. The steel wire rope shock absorber is low in natural frequency (7-10Hz), large in damping coefficient, capable of absorbing and dissipating a large amount of low-frequency and high-frequency vibration, and the amplification factor is not more than 3.5 times under the resonance frequency, so that the transmission of vibration is greatly reduced, elastic deformation is generated under strong impact particularly, bottom contact is avoided, deformation is not generated, and most impact energy is absorbed while large deformation is ensured.
The vertical guide assembly preferably but not limited to adopt a MYAK type high-precision guide pillar, the verticality between the bottom surface of the guide pillar seat and the guide pillar is less than or equal to 0.02, and the attitude keeping precision of the inertial equipment can be guaranteed to be better than 30' in the vibration reduction process. The guide sleeve part of the guide post is fixedly connected with the upper supporting plate, and the guide shaft part of the guide post is fixedly connected with the lower supporting plate.
For conveniently realizing the location installation of vertical direction subassembly, further: the upper end of bottom plate and the lower extreme of upper plate all are provided with positioning groove 5 corresponding to every vertical guide assembly's hookup location, the positioning groove plane degree is superior to 0.02mm, be superior to 0.04mm with equipment installation face depth of parallelism, the positioning groove that is located the upper portion inlays the dress cooperation with the bed plate of uide bushing part, the positioning groove that is located the lower part inlays the dress cooperation with the bed plate of guide post part, processing threaded hole in every positioning groove, install vertical guide assembly between upper and lower plate through connecting screw.
For conveniently realizing the location installation of wire rope shock absorber, further: the connection position of the upper end of the lower supporting plate and the lower end of the lower supporting plate corresponding to each steel wire rope clamping block is provided with a positioning boss 6, the flatness of a positioning groove is superior to 0.02mm, the parallelism of the positioning boss and the mounting surface of the vibration reduction base is superior to 0.04mm, the positioning boss on the upper portion is in contact fit with the steel wire rope clamping block on the upper portion, the positioning boss on the lower portion is in contact fit with the steel wire rope clamping block on the lower portion, threaded holes are machined in the positions of the two ends of each positioning boss, and the steel wire rope vibration reducer is mounted between the upper supporting plate and the lower supporting plate through mounting screws.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the scope of the appended claims, and therefore the scope of the utility model is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (6)
1. The utility model provides a but damping base that gesture was kept, includes mounting plate and bottom plate, its characterized in that: the device also comprises a plurality of steel wire rope vibration absorbers and a plurality of vertical guide assemblies;
the upper supporting plate and the lower supporting plate are coaxially arranged along the upper direction and the lower direction, the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are uniformly arranged between the upper supporting plate and the lower supporting plate along the circumferential direction, and the plurality of steel wire rope shock absorbers and the plurality of vertical guide assemblies are arranged in a staggered mode in the circumferential direction: the two steel wire rope clamping blocks of each steel wire rope shock absorber are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate; two guide matching assemblies of the plurality of vertical guide assemblies are respectively and fixedly connected with the lower end of the upper supporting plate and the upper end of the lower supporting plate.
2. The attitude retentive, vibration damping base according to claim 1, characterized in that: the number of the steel wire rope shock absorbers is 4, and the number of the vertical guide assemblies is 4.
3. The attitude retentive, vibration damping base according to claim 1, characterized in that: the steel wire rope shock absorber is GSG-80 type steel wire rope shock absorber.
4. The attitude retentive, vibration damping base according to claim 1, characterized in that: the vertical guide assembly adopts a MYAK type high-precision guide pillar, a guide sleeve part of the guide pillar is fixedly connected with the upper supporting plate, and a guide shaft part of the guide pillar is fixedly connected with the lower supporting plate.
5. The attitude retentive, vibration damping base according to claim 1, characterized in that: the upper end of the lower supporting plate and the lower end of the upper supporting plate are provided with positioning grooves corresponding to the connecting positions of each vertical guide assembly, the positioning grooves on the upper portion are in embedded fit with the base plate of the guide sleeve portion, the positioning grooves on the lower portion are in embedded fit with the base plate of the guide column portion, threaded holes are machined in each positioning groove, and the vertical guide assemblies are installed between the upper supporting plate and the lower supporting plate through connecting screws.
6. The attitude retentive, vibration damping base according to claim 1, characterized in that: the steel wire rope shock absorber is characterized in that a positioning boss is arranged at the connecting position of the upper end of the lower supporting plate and the lower end of the lower supporting plate, which corresponds to each steel wire rope clamping block, the positioning boss located on the upper portion is in contact fit with the steel wire rope clamping block located on the upper portion, the positioning boss located on the lower portion is in contact fit with the steel wire rope clamping block located on the lower portion, threaded holes are machined in the two ends of each positioning boss, and the steel wire rope shock absorber is installed between the upper supporting plate and the lower supporting plate through installation screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122142676.2U CN216242000U (en) | 2021-09-07 | 2021-09-07 | Vibration reduction base capable of maintaining posture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122142676.2U CN216242000U (en) | 2021-09-07 | 2021-09-07 | Vibration reduction base capable of maintaining posture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242000U true CN216242000U (en) | 2022-04-08 |
Family
ID=80983574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122142676.2U Active CN216242000U (en) | 2021-09-07 | 2021-09-07 | Vibration reduction base capable of maintaining posture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216242000U (en) |
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2021
- 2021-09-07 CN CN202122142676.2U patent/CN216242000U/en active Active
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