CN204592132U - Rubber dynamic vibration absorber - Google Patents
Rubber dynamic vibration absorber Download PDFInfo
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- CN204592132U CN204592132U CN201520103404.3U CN201520103404U CN204592132U CN 204592132 U CN204592132 U CN 204592132U CN 201520103404 U CN201520103404 U CN 201520103404U CN 204592132 U CN204592132 U CN 204592132U
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- rubber
- mounting bracket
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- absorber
- vibration rack
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Abstract
A kind of rubber dynamic vibration absorber, relate to a kind of dynamic vibration absorber, comprise mounting bracket, mass inertia block, top board, absorber rubber, vibration rack, described mass inertia block is positioned at mounting bracket, the top of vibration rack is exposed to outside mounting bracket top, and the bottom of vibration rack penetrates mounting bracket top and is fixedly connected in mass inertia block; Top board is positioned at the top on vibration rack top, is linked into an integrated entity between top board, mounting bracket, vibration rack by absorber rubber hot vulcanization; The top of mounting bracket with between top board also in absorber rubber surrounding by regulating fastening piece to be connected so that the compression in vertical direction of free adjustment absorber rubber or tensile buckling amount.The utility model can reduce vibration noise, can not only after rubber curing forming, use in debug process and carry out rigidity and freely adjust, can also prevent from mass inertia block from coming off in use or be hit flying out, have that long service life, Safety performance are high, up-to-standard rate advantages of higher, be easy to apply.
Description
Technical field
The utility model relates to a kind of dynamic vibration absorber, particularly relates to a kind ofly to be applicable to having rigidity and can being in harmonious proportion the rubber dynamic vibration absorber of limit structure of the fields such as automobile, engineering machinery, machinery.
Background technique
Vibration is harmful also favourable, but as a rule, harmful vibration can cause people to produce sticky feeling, and can cause product and structure premature breakdown, reduces working life, the even healthy and personal safety of entail dangers to people.Therefore, nuisance vibration must be reduced as far as possible or eliminate, in engineering, reduce or eliminate method for oscillating have multiple, have and eliminate or weaken vibration source, isolation or attenuation vibration transmission, dynamic absorber, increase damping, adjust structure etc., wherein dynamic absorber belongs to passive vibration damping, is also less expensive, effective method, is widely adopted in industries such as automobile, engineering machinery, machinery, building, steamer, aviations.
The basic principle of dynamic absorber is exactly add the rubber dynamic vibration absorber that a kind of natural frequency and rumble spectrum match at the maximum position of oscillating body amplitude, excitation force and inertial force reaction when resonating is utilized to offset, and rubber vibration distortion and in producing frictional heat vibrational energy is decayed, reach and reduce vibration noise object.
Existing rubber dynamic vibration absorber mainly adopts the basic structure principle of mass inertia block+absorber rubber+mounting bracket, and product after finalization of the manufacture rubber structure and rigidity has been fixed immutable.By natural frequency theoretical formula:
(f: natural frequency, k: absorber rubber rigidity, m: mass inertia block quality), natural frequency is relevant with quality and rigidity, in mass inertia block quality owing to being subject to assembly space, the condition restrictions such as working life and oscillating body gross mass immobilize in situation, control the rigidity of absorber rubber, just can reach the object controlling dynamic vibration absorber natural frequency, according to dynamic absorber principle, when bump leveller natural frequency is identical with excited frequency or close, bump leveller could be flourishing in best reduction vibration noise function, this just requires that the rigidity of absorber rubber must control the most useful effect of competence exertion in less scope, but, existing bump leveller is in manufacturing process, because rubber product manufacture is as refining glue, the impact that the manufacturing processs such as sulfuration are deteriorated, manufactured by absorber rubber body rigidity out cannot 100% to meet the demands, up-to-standard rate is lower, and reject cannot carry out doing over again reprocessing, the waste caused is larger.
There is some more novel adjustable rigidity rubber dynamic vibration absorber structures in recent year, as utility model patent 201420283485.5 proposes a kind of dynamic vibration absorber structure by regulating the size of magnetic force to reach adjustment rigidity object, and for example utility model patent 201320129345.8 proposes a kind of by regulating rubber side to amount of deformation to reach the dynamic vibration absorber structure of adjustment spring constant object, but the dynamic vibration absorber structure of this type of adjustable structure does not consider the spacing setting be applicable to, cause in actual use, larger in vibration especially, the relatively low occasion of vibration frequency is as automobile, engineering machinery etc., mass inertia block make under long-term effect of inertia absorber rubber easily produce ultralimit distortion tear, under extreme conditions, mass inertia block unfettered deviate from and injure mounting bracket, circumferential component, even drop on the ground or hit by rotary component and fly out and injure operator or pedestrian, miscellaneous equipment or vehicle, there is potential safety hazard, limit the further excessive application of this similar infrastructure product.
Summary of the invention
The technical problems to be solved in the utility model is: provide one can after rubber curing forming, use in debug process and carry out rigidity and freely adjust, come off when can prevent again mass inertia block in use or hit the rubber dynamic vibration absorber flown out.
The technological scheme solved the problems of the technologies described above is: a kind of rubber dynamic vibration absorber, comprise mounting bracket, mass inertia block, top board, absorber rubber, vibration rack, described mass inertia block is positioned at mounting bracket, the top of described vibration rack is exposed to outside the top of mounting bracket, the bottom of vibration rack penetrates the top of mounting bracket and is fixedly connected in mass inertia block, described top board is positioned at the top on vibration rack top, is linked into an integrated entity between this top board, mounting bracket, vibration rack by absorber rubber hot vulcanization; The top of described mounting bracket with between top board also in absorber rubber surrounding by regulating fastening piece to be connected so that the compression in vertical direction of free adjustment absorber rubber or tensile buckling amount.
Further technological scheme of the present utility model is: described mounting bracket is " π " character form structure be formed by connecting with the base being positioned at both sides by the upper frame being positioned at centre, the base of this mounting bracket is provided with for the pilot hole with oscillating body assembly connection, described mass inertia block is installed in the upper frame of mounting bracket; The upper frame top of mounting bracket is respectively arranged with the spacing hole for passing described vibration rack and the adjustment hole through described adjustment fastening piece.
Described vibration rack is divided in the middle part of vibration rack top, vibration rack, vibration rack bottom three part, and in the middle part of this vibration rack top, vibration rack, the external diameter of vibration rack bottom reduces successively.
Be provided with central through bore in described mass inertia block and be connected to the counterbore bottom central through bore; Described vibration rack bottom is provided with outside thread, and this vibration rack bottom is locked with the locking nut in counterbore through the central through bore of mass inertia block and is connected.
Through the spacing hole of mounting bracket in the middle part of described vibration rack, and the gap of outer round surface in the middle part of vibration rack and spacing hole internal circular surfaces is 3.5 ~ 5mm.
The part that described vibration rack exposes more than mounting bracket spacing hole is all positioned at absorber rubber, and vibration rack overlaps with the vertical center line of absorber rubber, and described vibration rack top is arranged on 1/2 ~ 3/4 place of absorber rubber short transverse from bottom to top.
The circumference external diameter at described vibration rack top is greater than the internal diameter of the spacing hole of mounting bracket, deviates under the extreme condition of tearing at absorber rubber to guarantee in use to prevent mass inertia block.
The end face at described vibration rack top be provided be convenient to rubber hot vulcanization flowing, improve absorber rubber and mounting bracket, the auxiliary hole of the bonding by Vulcanization intensity of vibration rack, this auxiliary hole is symmetrical arranged along the top circumferential at vibration rack top.
Described top board is provided with and design for absorber rubber vulcanization die injection material feeding mouth the top board auxiliary hole chosen and for the top board adjustment hole through adjustment fastening piece, described top board auxiliary hole is located at the center of top board end face and overlaps with the vertical center line of absorber rubber.
Owing to adopting said structure, the rubber dynamic vibration absorber of the utility model compared with prior art, has following beneficial effect:
1. can reduce vibration noise:
Because the utility model comprises mounting bracket, mass inertia block, top board, absorber rubber, vibration rack, wherein mass inertia block is positioned at mounting bracket, the top of vibration rack is exposed to outside the top of mounting bracket, the bottom of vibration rack penetrates the top of mounting bracket and is fixedly connected in mass inertia block, top board is positioned at the top on vibration rack top, is linked into an integrated entity between this top board, mounting bracket, vibration rack by absorber rubber hot vulcanization.Therefore, the utility model is by the setting rigidity of absorber rubber and the quality of mass inertia block, make the natural frequency value of dynamic vibration absorber close or consistent with the vibration frequency value of oscillating body, the reverse inertial force of mass inertia block when resonating is utilized to offset vibration force, rubber produces frictional heat with attenuation vibration energy when vibration deformation simultaneously, thus can reach reduction vibration noise object.
2. can after rubber curing forming, use in debug process and carry out rigidity and freely adjust:
Because the utility model is also connected by regulating fastening piece in absorber rubber surrounding with between top board at the top of mounting bracket, so that the compression in vertical direction of free adjustment absorber rubber or tensile buckling amount, namely be to improve or to reduce absorber rubber rigidity in vertical direction, therefore, the utility model can after rubber curing forming or (with) use in debug process and carry out rigidity and freely adjust, the object adjusting natural frequency can be reached.
3. come off or hit when can prevent mass inertia block in use and fly out:
Owing to being be fixed together by vibration rack between mass inertia block of the present utility model and absorber rubber, and the circumference external diameter at vibration rack top is greater than the internal diameter of the spacing hole of mounting bracket, add by top board, the position-limiting action of the enclosed construction that the top planes of mounting bracket and spacing hole are formed, can guarantee to avoid because absorber rubber produces the amount of deformation exceeding designing requirement, even if when serious, absorber rubber produces unexpected damage, mass inertia block also can not come off or be hit and fly out, thus greatly extend the working life of product, stop potential safety hazard.
3. up-to-standard rate is high:
The utility model has rigidity can be in harmonious proportion the structure of spacing setting owing to adopting, compared with current dynamic vibration absorber, can guarantee that the final energy 100% of dynamic vibration absorber natural frequency value meets code requirement, decrease the loss of reject, substantially increase conforming product rate.
4. can shorten the R&D cycle of product:
The utility model has the adjustable structure of rigidity owing to have employed, make bump leveller application units or manufacturing enterprise when sample test and checking, product use debugging, by lasting adjustment and the dependence test of rubber stiffness, the optimum matching scheme of rumble spectrum and shock attenuation result can be found out within very short time, thus greatly shorten the R&D cycle of product.
5. applied range:
The utility model has rigidity can be in harmonious proportion the structure of spacing setting owing to have employed, with current rubber dynamic vibration absorber structure, as utility model patent 201420283485.5 is compared with 201320129345.8 structures proposed, there is long service life, Safety performance is high, the advantage that using scope is wide, be easy to apply, can be used for machinery, traffic, steamer, aviation, the passive vibration and noise reducing coupling of all spectras such as building, be specially adapted to automobile, engineering machinery, vibrate larger in the industries such as machinery, the vibration and noise reducing coupling that frequency spectrum is lower, expand application area further.
Below, in conjunction with the accompanying drawings and embodiments the technical characteristics of the rubber dynamic vibration absorber of the utility model is further described.
Accompanying drawing explanation
Fig. 1 ~ Fig. 2: the structural representation of the rubber dynamic vibration absorber of the utility model,
Fig. 1: master looks cut-away view, the plan view of Fig. 2: Fig. 1,
Fig. 3: the perspective view of mounting bracket described in embodiment one,
Fig. 4: the structural representation (overlooking) of top board described in embodiment one,
Fig. 5: the perspective view of vibration rack described in embodiment one.
In figure, each label declaration is as follows:
1-mounting bracket,
11-base, 111-pilot hole, 12-upper frame, 121-spacing hole, 122-adjustment hole,
2-mass inertia block, 3-adjusting bolt; 4-adjusting nut,
5-top board,
51-top board auxiliary hole, 52-top board adjustment hole,
6-absorber rubber,
7-vibration rack,
71-vibration rack top, 711-auxiliary hole, in the middle part of 72-vibration rack, 73-vibration rack bottom,
8-locking nut.
Embodiment
embodiment one:
A kind of rubber dynamic vibration absorber, comprises mounting bracket 1, mass inertia block 2, top board 5, absorber rubber 6, vibration rack 7, wherein:
Described mass inertia block 2 is positioned at mounting bracket 1, the top of described vibration rack 7 is exposed to outside the top of mounting bracket 1, the bottom of vibration rack 7 penetrates the top of mounting bracket 1 and is fixedly connected in mass inertia block 2, described top board 5 is positioned at the top on vibration rack 7 top, linked into an integrated entity by absorber rubber 6 hot vulcanization between this top board 5, mounting bracket 1, vibration rack 7, the cross section of absorber rubber 6 is circular, also can be square, rectangular or rhombus.
The top of described mounting bracket 1 is also passed through to regulate fastening piece in absorber rubber 6 surrounding with between top board 5---and adjusting bolt 3 and adjusting nut 4 are connected, namely being adjusting bolt 3 links together through the top of mounting bracket, top board and adjusting nut 4, material is thus formed absorber rubber 6 amount of deformation regulation structure in vertical direction; By regulating the position of adjusting bolt 3 and adjusting nut 4 can free adjustment absorber rubber 6 compression in vertical direction or tensile buckling amount.
Described mounting bracket 1 is " π " character form structure be formed by connecting with the base 11 being positioned at both sides by the upper frame 12 being positioned at centre, the base 11 of this mounting bracket 1 is provided with for the pilot hole 111 with oscillating body assembly connection, the quantity of pilot hole 111 and distribution can be determined according to intended vibratory body matching part reality; In the upper frame 12 of mounting bracket 1, described mass inertia block 2 is installed; Upper frame 12 top of mounting bracket 1 is respectively arranged with the spacing hole 121 for passing described vibration rack and the adjustment hole 122 through described adjustment fastening piece, wherein said spacing hole 121 is arranged on the center of upper frame 12 top planes, and the spacing displacement design parameter of spacing hole 121 internal diameter and mass inertia block about 2 and fore-and-aft direction matches; Described adjustment hole 122 internal diameter and the external diameter of adjusting bolt 3 match, and adjustment hole 122 is symmetrical arranged along spacing hole 121 center of circle, and the quantity of adjustment hole 122 is 4.
Described vibration rack 7 to be divided in the middle part of vibration rack top 71, vibration rack 72, vibration rack bottom 73 3 part, and in the middle part of this vibration rack top 71, vibration rack 72, the external diameter of vibration rack bottom 73 reduces successively.
Described mass inertia block 2 shape is cylindrical body, also can be square body or cuboid; Be provided with central through bore in mass inertia block 2 and be connected to counterbore bottom central through bore, the internal diameter of central through bore and the external diameter of vibration rack bottom 73 match, and are provided with locking nut 8 in counterbore, the internal diameter of this counterbore and the degree of depth and locking nut 8 mating shapes; Described vibration rack bottom 73 is provided with outside thread, and this vibration rack bottom 73 is locked with the locking nut 8 in counterbore through the central through bore of mass inertia block 2 and is connected; In addition, the outside thread of vibration rack bottom 73 also can be used for the vulcanization of rubber location choose.
In the middle part of described vibration rack, 72 through the spacing hole 121 of mounting bracket 1, and in the middle part of vibration rack, the outer round surface of 72 and the gap of spacing hole 121 internal circular surfaces are 3.5 ~ 5mm.
The part that described vibration rack 7 exposes mounting bracket spacing hole more than 121 is all positioned at absorber rubber 6, and vibration rack 7 overlaps with the vertical center line of absorber rubber 6, described vibration rack top 71 is arranged on 1/2 ~ 3/4 place of absorber rubber 6 short transverse from bottom to top.
The circumference external diameter at described vibration rack top 71 is greater than the internal diameter of the spacing hole 121 of mounting bracket 1, deviates under the extreme condition of tearing at absorber rubber 6 to guarantee in use to prevent mass inertia block 2.
The end face at described vibration rack top 71 is provided with 4 auxiliary holes 711, this auxiliary hole 711 is symmetrical arranged along the top circumferential at vibration rack top 71, so that rubber hot vulcanization flowing, improve the bonding by Vulcanization intensity of absorber rubber 6 and mounting bracket 1, vibration rack 7, under assurance function and the prerequisite in working life, auxiliary hole 711 can be set to 2,3,5, or more.
Described top board 5 is provided with and design for absorber rubber 6 vulcanization die injection material feeding mouth the top board auxiliary hole 51 chosen and for the top board adjustment hole 52 through adjustment fastening piece, described top board auxiliary hole 51 is located at the center of top board 5 end face and overlaps with the vertical center line of absorber rubber 6; The quantity of top board adjustment hole 52, internal diameter and distribution mode are corresponding with the adjustment hole 122 of mounting bracket.
Claims (9)
1. a rubber dynamic vibration absorber, it is characterized in that: comprise mounting bracket (1), mass inertia block (2), top board (5), absorber rubber (6), vibration rack (7), described mass inertia block (2) is positioned at mounting bracket (1), the top of described vibration rack (7) is exposed to outside the top of mounting bracket (1), the bottom of vibration rack (7) penetrates the top of mounting bracket (1) and is fixedly connected in mass inertia block (2), described top board (5) is positioned at the top on vibration rack (7) top, this top board (5), mounting bracket (1), linked into an integrated entity by absorber rubber (6) hot vulcanization between vibration rack (7), the top of described mounting bracket (1) with between top board (5) also in absorber rubber (6) surrounding by regulating fastening piece to be connected so that free adjustment absorber rubber (6) compression in vertical direction or tensile buckling amount.
2. rubber dynamic vibration absorber according to claim 1, it is characterized in that: described mounting bracket (1) is by " π " character form structure being positioned at middle upper frame (12) and the base (11) that is positioned at both sides and being formed by connecting, the base (11) of this mounting bracket (1) is provided with for the pilot hole (111) with oscillating body assembly connection, in the upper frame (12) of mounting bracket (1), described mass inertia block (2) is installed; Upper frame (12) top of mounting bracket (1) is respectively arranged with the spacing hole (121) for passing described vibration rack and the adjustment hole (122) through described adjustment fastening piece.
3. rubber dynamic vibration absorber according to claim 2, it is characterized in that: described vibration rack (7) is divided into (72) in the middle part of vibration rack top (71), vibration rack, vibration rack bottom (73) three part, and in the middle part of this vibration rack top (71), vibration rack, the external diameter of (72), vibration rack bottom (73) reduces successively.
4. rubber dynamic vibration absorber according to claim 3, is characterized in that: be provided with central through bore in described mass inertia block (2) and be connected to the counterbore bottom central through bore; Described vibration rack bottom (73) is provided with outside thread, and this vibration rack bottom (73) to be locked with the locking nut (8) in counterbore through the central through bore of mass inertia block (2) and is connected.
5. rubber dynamic vibration absorber according to claim 3, it is characterized in that: in the middle part of described vibration rack, (72) are through the spacing hole (121) of mounting bracket (1), and in the middle part of vibration rack, the outer round surface of (72) and the gap of spacing hole (121) internal circular surfaces are 3.5 ~ 5mm.
6. rubber dynamic vibration absorber according to claim 3, it is characterized in that: the part that described vibration rack (7) exposes more than mounting bracket spacing hole (121) is all positioned at absorber rubber (6), and vibration rack (7) overlaps with the vertical center line of absorber rubber (6), described vibration rack top (71) is arranged on 1/2 ~ 3/4 place of absorber rubber (6) short transverse from bottom to top.
7. rubber dynamic vibration absorber according to claim 6, it is characterized in that: the circumference external diameter of described vibration rack top (71) is greater than the internal diameter of the spacing hole (121) of mounting bracket (1), deviate under the extreme condition of tearing at absorber rubber (6) to guarantee in use to prevent mass inertia block (2).
8. rubber dynamic vibration absorber according to claim 7, it is characterized in that: the end face of described vibration rack top (71) is provided with the auxiliary hole (711) of bonding by Vulcanization intensity be convenient to rubber hot vulcanization flowing, improved absorber rubber (6) and mounting bracket (1), vibration rack (7), and this auxiliary hole (711) is symmetrical arranged along the top circumferential of vibration rack top (71).
9. the rubber dynamic vibration absorber according to the arbitrary claim of claim 1 to 8, it is characterized in that: described top board (5) is provided with and design for absorber rubber (6) vulcanization die injection material feeding mouth the top board auxiliary hole (51) chosen and for the top board adjustment hole (52) through adjustment fastening piece, described top board auxiliary hole (51) is located at the center of top board (5) end face and overlaps with the vertical center line of absorber rubber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520103404.3U CN204592132U (en) | 2015-02-13 | 2015-02-13 | Rubber dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520103404.3U CN204592132U (en) | 2015-02-13 | 2015-02-13 | Rubber dynamic vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592132U true CN204592132U (en) | 2015-08-26 |
Family
ID=53928286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520103404.3U Withdrawn - After Issue CN204592132U (en) | 2015-02-13 | 2015-02-13 | Rubber dynamic vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696428A (en) * | 2015-02-13 | 2015-06-10 | 柳州金鸿橡塑有限公司 | Rubber power vibration absorber |
| CN108443154A (en) * | 2018-04-23 | 2018-08-24 | 珠海格力电器股份有限公司 | Compressor is with inhaling shake subassembly and air conditioning unit |
-
2015
- 2015-02-13 CN CN201520103404.3U patent/CN204592132U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696428A (en) * | 2015-02-13 | 2015-06-10 | 柳州金鸿橡塑有限公司 | Rubber power vibration absorber |
| CN108443154A (en) * | 2018-04-23 | 2018-08-24 | 珠海格力电器股份有限公司 | Compressor is with inhaling shake subassembly and air conditioning unit |
| CN108443154B (en) * | 2018-04-23 | 2024-04-05 | 珠海格力电器股份有限公司 | Shock absorbing assembly for compressor and air conditioning unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150826 Effective date of abandoning: 20171114 |