CN211648889U - Variable frequency vibration absorber - Google Patents
Variable frequency vibration absorber Download PDFInfo
- Publication number
- CN211648889U CN211648889U CN202020022624.4U CN202020022624U CN211648889U CN 211648889 U CN211648889 U CN 211648889U CN 202020022624 U CN202020022624 U CN 202020022624U CN 211648889 U CN211648889 U CN 211648889U
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- base plate
- fixing
- mounting
- vibration absorber
- clamping
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Abstract
The utility model discloses a variable frequency vibration absorber, which comprises a rigidity adjusting part, a mounting seat and a mass adjusting part, the rigidity adjusting part is a rubber column, two ends of the rigidity adjusting part are detachably connected with mounting seats, one side of the mounting seat relative to the rigidity adjusting part is used for mounting the quality adjusting part, the quality adjusting part comprises at least one mass block, the mounting seat is a metal plate and is vulcanized and fixed with the rubber column, wherein the outer end of one metal plate is welded with a bolt, the other metal plate is used for mounting and fixing with an external part, the mass block is a circular block, one side of the screw rod is provided with a thread groove matched with the bolt on the metal plate, and the other side of the screw rod is fixed with a screw rod matched with the thread groove, so that the quantity of the mass blocks can be increased or decreased conveniently, the mounting seat comprises a connecting part, a fixing part and a clamping part, wherein the connecting part and the fixing part are detachably connected. The utility model discloses simple structure, the convenient dismouting spare part is convenient for adjust its shock absorption performance.
Description
Technical Field
The utility model relates to a bump leveller technical field especially relates to a variable frequency bump leveller.
Background
At present, a dynamic vibration absorber is a device for absorbing vibration energy of an object to reduce the vibration of the object by using a resonance system, and the principle is to attach a mass spring resonance system to the vibrating object, and the additional system generates a reaction force when resonating so as to reduce the vibration of the vibrating object. In the field of automotive technology, a dynamic vibration absorber is an important component of an automobile, and generally includes a base, a rubber block and a mass block, and is generally installed on automobile parts such as a frame and a chassis to reduce corresponding vibrations, so as to maximally attenuate a resonance band of structural noise and improve sound quality during vehicle driving. In practical application, the deflection vibration of the mass block can affect the natural vibration frequency of the mass block to a certain extent, so that the vibration reduction and noise reduction effects of the dynamic vibration absorber are affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a variable frequency vibration absorber to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the variable-frequency vibration absorber comprises a rigidity adjusting part, a mounting seat and a mass adjusting part, wherein the rigidity adjusting part is a rubber column, the two ends of the rigidity adjusting part are detachably connected with the mounting seat, one side of the mounting seat, opposite to the rigidity adjusting part, is used for mounting the mass adjusting part, and the mass adjusting part comprises at least one mass block.
Furthermore, the mounting seat is a metal plate, and the mounting seat is vulcanized and fixed with the rubber column.
Furthermore, a bolt is welded at the outer end of one metal plate, and the other metal plate is used for being installed and fixed with an external part.
Furthermore, the mass block is a circular block, a thread groove matched with the bolt on the metal plate is formed in one side of the mass block, and a screw rod matched with the thread groove is fixed on the other side of the mass block, so that the number of the mass block can be increased or decreased conveniently.
Furthermore, the mount pad includes connecting portion, fixed part, clamping part, connecting portion, fixed part can dismantle the connection, and the tip of rubber column is adjusted on connecting portion, and the clamping part is connected with the fixed part, and is used for pressing from both sides tight rubber column between clamping part and the connecting portion.
Further, the connecting part comprises a base plate and a fixing sleeve, the base plate is an annular plate, the fixing sleeve is cylindrical and coaxially fixed on the top surface of the base plate, and the inner wall of the end part of the rubber column is bonded on the outer annular surface of the fixing sleeve.
The fixing part comprises a substrate and a fixing column, the substrate is in a circular plate shape, the fixing column is coaxially fixed on the top surface of the substrate, the diameter of the fixing column is smaller than that of the substrate, the base plate is pressed on the top surface of the substrate, the fixing sleeve is sleeved on the outer side of the fixing column, and the base plate is connected with the substrate through a bolt.
The clamping part is provided with at least three clamping parts and is distributed outside the substrate in an array mode, the clamping parts comprise clamping plates and mounting plates, the clamping plates are arc-shaped plates, the mounting plates are fixed to the bottom ends of the clamping plates and are used for being connected with the outer side faces of the substrate through bolts, and the bottom ends of the rubber columns are located between the inner walls of the clamping plates and the outer ring faces of the fixing sleeves.
Furthermore, a plurality of first connecting holes are distributed in an array mode on the base plate, second connecting holes corresponding to the first connecting holes are distributed in an array mode on the edge of the base plate, connecting bolts are spirally arranged in the second connecting holes, and the tail ends of the connecting bolts are spirally arranged in the first connecting holes.
The mounting plate is provided with a mounting hole, the outer side surface of the base plate is circumferentially distributed with thread grooves corresponding to the mounting hole, the thread grooves extend along the radial direction of the base plate, clamping bolts are spirally arranged in the mounting hole, the tail ends of the clamping bolts are used for being matched and connected with the corresponding thread grooves, the threaded sections of the clamping bolts are sleeved with gaskets, and the gaskets are located between the nut sections of the clamping bolts and the mounting plate.
Furthermore, the outer ports of the first connecting hole and the mounting hole are coaxially provided with sinking grooves.
Furthermore, a screw rod is fixed on the outer side of the base plate in one of the mounting seats, the mass block is an annular block sleeved on the screw rod, and the tail end of the screw rod is spirally connected with a compression nut used for compressing the mass block.
The utility model has the advantages that:
the utility model discloses a bump leveller that rigidity regulating part, mount pad, quality control portion are constituteed, rigidity regulating part and quality control portion are dismantled in easy to assemble, and the frequency of being convenient for adjust dynamic vibration absorber can be adjusted wantonly, has solved the fixed, poor, the structure of current bump leveller frequency, adaptability height problem such as manufacturing cost simultaneously, and the utility model discloses when using, when spare part exists destruction, convenient the change need not whole change, practices thrift the cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of embodiment 2 of the present invention;
fig. 2 is a partial schematic structural view of embodiment 2 of the present invention;
fig. 3 is a schematic view of the overall structure of embodiment 1 of the present invention.
In the figure: in the figure: the rigidity adjusting portion 1, the mounting base 2, the connecting portion 21, the fixing portion 22, the clamping portion 23, the mass adjusting portion 3, the screw 4, the compression nut 5, the clamping bolt 6, the gasket 7, the base plate 211, the fixing sleeve 212, the first connecting hole 213, the base plate 221, the fixing column 222, the second connecting hole 223, the clamping plate 231, the mounting plate 232, and the mounting hole 233.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
referring to fig. 1, the variable frequency vibration absorber comprises a rigidity adjusting part 1, mounting seats 2 and a mass adjusting part 3, wherein the rigidity adjusting part 1 is a rubber column, the two ends of the rigidity adjusting part 1 are both detachably connected with the mounting seats 2, one side of one of the mounting seats 2, which is opposite to the rigidity adjusting part 1, is used for mounting the mass adjusting part 3, and the mass adjusting part 3 comprises at least one mass block.
Further, the mounting base 2 is a metal plate, and the mounting base 2 is vulcanized and fixed with the rubber column.
Furthermore, a bolt is welded at the outer end of one metal plate, and the other metal plate is used for being installed and fixed with an external part.
Furthermore, the mass block is a circular block, a thread groove matched with the bolt on the metal plate is formed in one side of the mass block, and a screw rod matched with the thread groove is fixed on the other side of the mass block, so that the number of the mass block can be increased or decreased conveniently.
Example 2:
referring to fig. 2 and 3, in the present embodiment, unlike embodiment 1, the mounting base 2 includes a connecting portion 21, a fixing portion 22, and a clamping portion 23, the connecting portion 21 and the fixing portion 22 are detachably connected, an end of the rubber column is adjusted on the connecting portion 21, the clamping portion 23 is connected with the fixing portion 22, and the clamping portion 23 and the connecting portion 21 are used for clamping the rubber column.
Further, the connecting portion 21 includes a base plate 211 and a fixing sleeve 212, the base plate 211 is an annular plate, the fixing sleeve 212 is cylindrical and coaxially fixed on the top surface of the base plate 211, and the inner wall of the end portion of the rubber column is bonded on the outer annular surface of the fixing sleeve 212.
The fixing portion 22 includes a substrate 221 and a fixing column 222, the substrate 221 is in a circular plate shape, the fixing column 222 is coaxially fixed on the top surface of the substrate 221, the diameter of the fixing column 222 is smaller than that of the substrate 221, the base plate 211 is pressed on the top surface of the substrate 221, the fixing sleeve 212 is sleeved on the outer side of the fixing column 222, and the base plate 211 is connected with the substrate 221 through a bolt.
The clamping portion 23 is provided with at least three clamping plates 231 and is distributed outside the substrate 221 in an array mode, the clamping portion 23 comprises clamping plates 231 and mounting plates 232, the clamping plates 231 are arc-shaped plates, the mounting plates 232 are fixed to the bottom ends of the clamping plates 231, the mounting plates 232 are used for being connected with the outer side faces of the substrate 221 through bolts, and the bottom ends of the rubber columns are located between the inner walls of the clamping plates 231 and the outer ring faces of the fixing sleeves 212.
Further, a plurality of first connecting holes 213 are distributed in an array manner on the base plate 211, second connecting holes 223 corresponding to the first connecting holes 213 are distributed in an array manner at the edge of the base plate 221, a connecting bolt is spirally arranged in the second connecting holes 223, and the tail end of the connecting bolt is spirally arranged in the first connecting holes 213.
Set up mounting hole 233 on the mounting panel 232, the lateral surface circumference of base plate 221 distributes the thread groove that corresponds with mounting hole 233, the thread groove is along the radial extension of base plate 221, and the spiral is equipped with clamping bolt 6 in the mounting hole 233, and clamping bolt 6's end is used for and the thread groove cooperation that corresponds is connected, clamping bolt 6 screw thread section cover establishes gasket 7, and gasket 7 is located between clamping bolt 6's nut section and the mounting panel 232.
Further, the outer ports of the first connection hole 213 and the mounting hole 233 are coaxially provided with a sink groove.
Further, a screw rod 4 is fixed on the outer side of the substrate 221 in one of the mounting seats 2, the mass block is an annular block sleeved on the screw rod 4, and a compression nut 5 for compressing the mass block is spirally connected to the tail end of the screw rod 4.
According to undamped natural frequency formula
A change of the vibration absorber frequency is performed. Changing the frequency of the vibration absorber requires changing two variables, namely k and m, where k represents the stiffness of the rubber column, m represents the mass weight, and f represents the resonance of the dynamic vibration absorberThe frequency, the resonance frequency of the vibration-reduced component is inversely proportional to the weight of the mass block, and the resonance frequency of the vibration-reduced component is proportional to the rigidity of the rubber column.
The variable frequency vibration absorber designed by the device is convenient for increasing and decreasing the quantity of the mass blocks, and the rigidity adjusting part is a rubber column, so that the variable frequency vibration absorber is convenient to mount and dismount.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a variable frequency vibration absorber, is including rigidity regulating part (1), mount pad (2), quality regulating part (3), its characterized in that: rigidity regulation portion (1) is the rubber column, and the equal detachable in both ends of rigidity regulation portion (1) is connected with mount pad (2), one of them one side of mount pad (2) relative rigidity regulation portion (1) is used for installing quality regulation portion (3), and quality regulation portion (3) include at least one quality piece.
2. The variable frequency vibration absorber according to claim 1, wherein: the mounting seat (2) is a metal plate, and the mounting seat (2) is vulcanized and fixed with the rubber column.
3. The variable frequency vibration absorber according to claim 2, wherein: and the outer end of one metal plate is welded with a bolt, and the other metal plate is used for mounting and fixing with an external part.
4. The variable frequency vibration absorber according to claim 3, wherein: the mass block is a circular block, a thread groove matched with the bolt on the metal plate is formed in one side of the mass block, and a screw rod matched with the thread groove is fixed on the other side of the mass block, so that the number of the mass block can be increased or decreased conveniently.
5. The variable frequency vibration absorber according to claim 1, wherein: the mounting seat (2) comprises a connecting portion (21), a fixing portion (22) and a clamping portion (23), the connecting portion (21) and the fixing portion (22) are detachably connected, the end portion of the rubber column is adjusted on the connecting portion (21), the clamping portion (23) is connected with the fixing portion (22), and the clamping portion (23) and the connecting portion (21) are used for clamping the rubber column.
6. The variable frequency vibration absorber according to claim 5, wherein: the connecting part (21) comprises a base plate (211) and a fixing sleeve (212), the base plate (211) is an annular plate, the fixing sleeve (212) is cylindrical and coaxially fixed on the top surface of the base plate (211), and the inner wall of the end part of the rubber column is adhered to the outer annular surface of the fixing sleeve (212);
the fixing part (22) comprises a substrate (221) and a fixing column (222), the substrate (221) is in a circular plate shape, the fixing column (222) is coaxially fixed on the top surface of the substrate (221), the diameter of the fixing column (222) is smaller than that of the substrate (221), the base plate (211) is pressed on the top surface of the substrate (221), the fixing sleeve (212) is sleeved on the outer side of the fixing column (222), and the base plate (211) is connected with the substrate (221) through bolts;
clamping part (23) are equipped with at least three and array distribution in base plate (221) outside, and clamping part (23) are including splint (231), mounting panel (232), and splint (231) are arc plate-like, and mounting panel (232) are fixed to the bottom of splint (231), and mounting panel (232) are used for the lateral surface bolted connection with base plate (221), the bottom of rubber column is located between the outer anchor ring of the inner wall of splint (231) and fixed cover (212).
7. The variable frequency vibration absorber according to claim 6 wherein: a plurality of first connecting holes (213) are distributed in an array mode on the base plate (211), second connecting holes (223) corresponding to the first connecting holes (213) are distributed in an array mode on the edge of the base plate (221), connecting bolts are spirally arranged in the second connecting holes (223), and the tail ends of the connecting bolts are spirally arranged in the first connecting holes (213);
offer mounting hole (233) on mounting panel (232), the thread groove that lateral surface circumference distribution and mounting hole (233) of base plate (221) correspond, the thread groove is along the radial extension of base plate (221), and the spiral is equipped with clamping bolt (6) in mounting hole (233), and the end of clamping bolt (6) is used for and the thread groove cooperation that corresponds is connected, gasket (7) are established to clamping bolt (6) screw thread section cover, and gasket (7) are located between the nut section and mounting panel (232) of clamping bolt (6).
8. The variable frequency vibration absorber according to claim 7 wherein: the outer ports of the first connecting hole (213) and the mounting hole (233) are coaxially provided with sinking grooves.
9. The variable frequency vibration absorber according to claim 6 wherein: a screw rod (4) is fixed on the outer side of a base plate (221) in one of the mounting seats (2), the mass block is an annular block sleeved on the screw rod (4), and the tail end of the screw rod (4) is spirally connected with a compression nut (5) used for compressing the mass block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020022624.4U CN211648889U (en) | 2020-01-07 | 2020-01-07 | Variable frequency vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020022624.4U CN211648889U (en) | 2020-01-07 | 2020-01-07 | Variable frequency vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211648889U true CN211648889U (en) | 2020-10-09 |
Family
ID=72703708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020022624.4U Expired - Fee Related CN211648889U (en) | 2020-01-07 | 2020-01-07 | Variable frequency vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211648889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263704A (en) * | 2021-12-28 | 2022-04-01 | 浙江极氪智能科技有限公司 | Vibration absorbing device, panoramic sunroof and automobile |
-
2020
- 2020-01-07 CN CN202020022624.4U patent/CN211648889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263704A (en) * | 2021-12-28 | 2022-04-01 | 浙江极氪智能科技有限公司 | Vibration absorbing device, panoramic sunroof and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 Termination date: 20220107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |