CN201581336U - Vibration absorber for vibrator roller - Google Patents
Vibration absorber for vibrator roller Download PDFInfo
- Publication number
- CN201581336U CN201581336U CN2010201047784U CN201020104778U CN201581336U CN 201581336 U CN201581336 U CN 201581336U CN 2010201047784 U CN2010201047784 U CN 2010201047784U CN 201020104778 U CN201020104778 U CN 201020104778U CN 201581336 U CN201581336 U CN 201581336U
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- Prior art keywords
- shock absorber
- gripper shoe
- vibration absorbing
- rubber
- vibration
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Abstract
The utility model discloses a vibration absorber for a vibrator roller, which comprises two rubber vibration absorbing device groups symmetrically distributed on the left side and the right side of a vibration shaft. Each rubber vibration absorbing device group comprises a vertical vibration absorbing device supporting plate, an upper frame supporting plate and pluralities of rubber vibration absorbing devices, wherein the upper frame supporting plate is located on the outer side of the vibrator supporting plate and is disposed parallel to the same, and the rubber vibration absorbing devices are uniformly distributed between the vibration absorbing device supporting plate and the upper frame supporting plate peripherally. Each rubber vibration absorbing device comprises a vibration absorbing device outer frame, two vibration absorbing device cores and pluralities of vibration absorbing rubbers, wherein the vibration absorbing device outer frame is arranged between the upper frame supporting plate and the vibration absorbing device supporting plate, the inside of the vibration absorbing device is divided into two vibration absorbing device cavities with identical structures through a vibration absorbing device partition board, the two vibration absorbing device cores are respectively distributed on the middle portions of the inner sides of the two vibration absorbing device cavities, and the vibration absorbing rubbers are uniformly symmetrically distributed in clearances among the vibration absorbing device cores and the inner walls of the vibration absorbing device cavities. The vibration absorber is compact in structure, reliable in property and fine in using effect, leads the vibration absorbing rubbers to be in a compressed state from a sheared and stretched environment, sufficiently utilizes properties of the rubber vibration absorbing devices, and simultaneously prolongs service lives of the vibration absorbing devices.
Description
Technical field
The utility model belongs to the vibratory roller antivibration area, especially relates to a kind of vibratory roller vibration absorber.
Background technology
Vibratory roller is the leading type of pavement compaction, its target to the compacting operation quality requirement than higher.During work, vibratory roller utilizes the vibration road pavement of steel wheel to carry out effective compacting.Steel wheel is connected with vehicle frame by vibration insulating system, and vibration can pass to vehicle frame inevitably.If the vibration insulating system effectiveness in vibration suppression is bad, can make the vibrational energy that should act on the road surface scatter and disappear in a large number on the one hand, the vibration that passes to vehicle frame on the other hand can make roller man's operation comfort variation.Substantive test finds that mostly there is the relatively poor problem of effectiveness in vibration suppression in existing homemade vibratory roller.Solve this problem that vibratory roller exists, need a kind of vibration insulating system with good effectiveness in vibration suppression.Require this vibration insulating system on the basis that can guarantee the road roller vibration parameters, effectively promote vibratory roller starting, the stationarity when stopping, and the uniformity of road roller amplitude in compacting process, realize the high-quality operation of vibratory roller; Also require this vibration insulating system can isolate the influence of steel wheeled vibratory as far as possible on the other hand, improve driver's operation comfort last vehicle frame.
Present most vibratory roller vibration insulating system all adopts the rubber damping piece.Its major advantage is as follows: 1. rubber is easy to be shaped, and can change the shape of rubber according to design requirement neatly, satisfies the rigidity requirement on the different directions; 2. rubber can effectively shorten the startup of system and downtime and surpass time of resonance region, reduces resonance amplitude; 3. identical physical dimension, the weight of rubber is less, can take different arrangement forms according to needs are installed, and installation and removal are convenient simultaneously.
In the practical application, the vibration insulating system of vibratory roller is to be arranged by one group of rubber damping piece to form.Rubber during work in the damping block mainly is subjected to the effect of shearing force and driving moment.Because the intensity of elastomeric material own is not high, shear and stretching easier material damage that makes for compression, therefore in the design of vibration insulating system except that should be by the suitable rubber clone of the supporting capacity selection of rubber part requirements, also should note making rubber to be in pressured state as far as possible, rather than be cut or extended state.The hypertonia that rubber part is born simultaneously is in order to avoid damping block destroys too early.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of vibratory roller vibration absorber is provided, it is reasonable in design, compact conformation, dependable performance and result of use are good, change the original working environment of being sheared and stretching of vibration isolation rubber into compressed state, when making full use of the rubber shock absorber performance, also prolonged the application life of shock absorber.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of vibratory roller vibration absorber, it is characterized in that: comprise that two groups of symmetries are laid in the rubber shock absorber group of the vibrating shaft left and right sides set on the vibratory roller vibration steel wheel, in two axle beds, described axle bed was fixedly mounted in the vibration steel wheel by support member about the both ends, the left and right sides of described vibrating shaft were installed in by bearing respectively; Described rubber shock absorber group comprise vertically to coaxial be installed on the axle bed or by Bearning mechanism coaxial be installed in shock absorber gripper shoe on the vibrating shaft, be positioned at the shock absorber gripper shoe outside and be used for the last vehicle frame gripper shoe of vehicle frame on the described vibratory roller of support fixation and along the circumferential direction evenly be laid in the shock absorber gripper shoe and last vehicle frame gripper shoe between a plurality of rubber shock absorbers, described on vehicle frame gripper shoe and shock absorber gripper shoe be arranged in parallel; Described rubber shock absorber comprises and being installed in respectively between vehicle frame gripper shoe and the shock absorber gripper shoe and the inner shock absorber outrigger that is divided into the identical shock absorber chamber of two structures by the shock absorber dividing plate, be laid in two shock absorber cores of two shock absorber chamber middle inside respectively and be laid in the shock absorber core symmetrically and described shock absorber cavity wall between a plurality of vibration isolation rubbers in the space, two shock absorber cores all are level and are installed in respectively on vehicle frame gripper shoe and the shock absorber gripper shoe to setting and the two, described two shock absorber cores are shock absorber core one and the shock absorber core two that is installed on vehicle frame gripper shoe and the shock absorber gripper shoe, and the shock absorber dividing plate is arranged on shock absorber outrigger middle inside; A plurality of shock absorber cores one in described a plurality of rubber shock absorber and a plurality of shock absorber core two are all along the circumferential direction evenly laid, and all the axis with vibrating shaft is that center line is laid, and described a plurality of shock absorber cores one and a plurality of shock absorber core two are laid in respectively on two vertical planes.
Described shock absorber chamber be shaped as square, the quantity of vibration isolation rubber is four, and four vibration isolation rubbers are separately positioned on four drift angles in described shock absorber chamber; Described shock absorber core is a four-prism shape steel shock absorber core, and four sidewalls of described shock absorber core and the angle between described shock absorber cavity wall are 45 °.
Connecting line between described two shock absorber core geometric center point and the angle between vertical direction are α and 30 °≤α≤60 °.
Connecting line between described two shock absorber core geometric center point and the angle between vertical direction are α=45 °.
Space between described shock absorber core and described shock absorber cavity wall is a triangular open space, and vibration isolation rubber is cylindrical-shaped structure and its diameter inscribed circle diameter greater than described triangular open space.
Also comprise two support backing plates that are installed in respectively on shock absorber gripper shoe and the last vehicle frame gripper shoe inwall, described two shock absorber cores support backing plates by two respectively and are installed on vehicle frame gripper shoe and the shock absorber gripper shoe.
Described shock absorber core, support between backing plate and last vehicle frame gripper shoe and shock absorber gripper shoe all by erection bolt be connected with installation nut that erection bolt is used.
The quantity of described a plurality of rubber shock absorbers is 4.
Described shock absorber outrigger by two U font framves dress is formed and described shock absorber dividing plate is fixedly clamped in the junction of two U font framves, between described two U font framves and shock absorber dividing plate by connecting bolt be connected with attaching nut that connecting bolt is used.
The utility model compared with prior art has the following advantages:
1, the new reasonable and installation compactness of structure design is installed and is laid conveniently.
2, the stress of the vibration isolation rubber in the rubber shock absorber can be by being subjected to the shearing force state to become power state by compression automatically neatly, given full play to the superperformance of vibration isolation rubber, prolong the application life of rubber shock absorber, improved the damping property of shock absorber simultaneously.Particularly: the utility model has changed the existing connecting mode of going up between vehicle frame and the steel wheel of vibratory roller, the mode of action with the vibration isolation rubber in the rubber shock absorber becomes compression by shear action simultaneously, the change of the rubber mode of action has made full use of the characteristics of rubber compressive property far above anti-shear performance, improve the damping property of vibration insulating system effectively, prolonged the application life of rubber shock absorber simultaneously.
3, improve vibratory roller starting and the stationarity when stopping, improved the compaction quality of starting and the section of stopping in the vibratory roller construction.
4, make the amplitude of vibratory roller in the work driving process more even.
5, avoid steel wheeled vibratory to bring the adverse effect of vehicle frame more effectively, further improved driver's operation comfort.
6, stable and reliable working performance and effectiveness in vibration suppression are very good, no matter vibratory roller remains static, still in running order, the utility model all can provide a favorable damping platform for vibratory roller, by a plurality of special constructions and be laid in rubber shock absorber on the appropriate location and can effectively solve the vibration damping problem that goes up vehicle frame and vibration two kinds of active forces that steel wheel produced in the vibratory roller course of work, thereby can effectively be suitable for to direct road pavement and carry out the vibration steel wheel of compacting and the vibration damping between the last vehicle frame.
In sum, the utility model is reasonable in design, compact conformation, dependable performance and result of use are good, it has changed the stress of vibration isolation rubber in the existing vibratory roller vibration insulating system, the good characteristics of rubber anti-pressure ability have been made full use of, change original working environment of being sheared and stretching into compressed state, when making full use of the rubber shock absorber performance, also prolonged the application life of shock absorber.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a user mode reference diagram of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of the utility model rubber shock absorber.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the right view of Fig. 4.
Description of reference numerals:
1-vibrates steel wheel; The 2-vibrating shaft; The 3-bearing;
The 4-axle bed; 5-shock absorber gripper shoe; The last vehicle frame gripper shoe of 6-;
7-supports backing plate; 8-shock absorber outrigger; 9-shock absorber dividing plate;
10-1-shock absorber core one; 10-2-shock absorber core two; The 11-vibration isolation rubber;
The 12-connecting bolt; 13-attaching nut; The 14-hydraulic motor;
The 15-erection bolt; 16-installs nut.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model comprises that two groups of bilateral symmetry are laid in the rubber shock absorber group of vibrating shaft 2 left and right sides set on the vibratory roller vibration steel wheel 1, in two axle beds 4, described axle bed 4 was fixedly mounted in the vibration steel wheel 1 by support member about the both ends, the left and right sides of described vibrating shaft 2 were installed in by bearing 3 respectively.Described rubber shock absorber group comprises vertically to coaxial and is installed in shock absorber gripper shoe 5 on the axle bed 4, is positioned at shock absorber gripper shoe 5 outsides and is used for the last vehicle frame gripper shoe 6 of vehicle frame on the described vibratory roller of support fixation and along the circumferential direction evenly be laid in shock absorber gripper shoe 5 and a plurality of rubber shock absorbers of 6 of last vehicle frame gripper shoes, described on vehicle frame gripper shoe 6 and shock absorber gripper shoe 5 be arranged in parallel.Described rubber shock absorber comprises and being installed in respectively between vehicle frame gripper shoe 6 and the shock absorber gripper shoe 5 and the inner shock absorber outrigger 8 that is divided into the identical shock absorber chamber of two structures by shock absorber dividing plate 9, be laid in two shock absorber cores of two shock absorber chamber middle inside respectively and be laid in the shock absorber core symmetrically and described shock absorber cavity wall between a plurality of vibration isolation rubbers 11 in the space, two shock absorber cores all are level and are installed in respectively on vehicle frame gripper shoe 6 and the shock absorber gripper shoe 5 to setting and the two, described two shock absorber cores are shock absorber core one 10-1 and shock absorber core two 10-2 that are installed on vehicle frame gripper shoe 6 and the shock absorber gripper shoe 5, and shock absorber dividing plate 9 is arranged on shock absorber outrigger 8 middle inside.A plurality of shock absorber core one 10-1 in described a plurality of rubber shock absorber and a plurality of shock absorber core two 10-2 all along the circumferential direction evenly lay, and all the axis with vibrating shaft 2 is that center line is laid, and described a plurality of shock absorber core one 10-1 and a plurality of shock absorber core two 10-2 are laid in respectively on two vertical planes.During actual installation, also can be by Bearning mechanism with shock absorber gripper shoe 5 coaxial being installed on the vibrating shaft 2.
In conjunction with Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, the quantity of described a plurality of rubber shock absorbers is 4.And described shock absorber chamber be shaped as square, the quantity of vibration isolation rubber 11 is four, and four vibration isolation rubbers 11 are separately positioned on four drift angles in described shock absorber chamber.Described shock absorber core is a four-prism shape steel shock absorber core, and four sidewalls of shock absorber core and the angle between described shock absorber cavity wall are 45.Space between described shock absorber core and described shock absorber cavity wall is a triangular open space, and vibration isolation rubber 11 is cylindrical-shaped structure and its diameter inscribed circle diameter greater than described triangular open space.Connecting line between the geometric center point of described two shock absorber cores and the angle between vertical direction are α=45 °.In the actual use, according to the concrete needs of reality, connecting line between described two shock absorber core geometric center point and the angle between vertical direction can be in the scope of 30 °≤α≤60 ° corresponding the adjustment.
Simultaneously, the utility model also comprises two support backing plates 7 that are installed in respectively on shock absorber gripper shoe 5 and last vehicle frame gripper shoe 6 inwalls, and described two shock absorber cores support backing plates 7 by two respectively and are installed on vehicle frame gripper shoe 6 and the shock absorber gripper shoe 5.Described shock absorber core, support 5 of backing plate 7 and last vehicle frame gripper shoe 6 and shock absorber gripper shoes all by erection bolt 15 be connected with installation nut 16 that erection bolt 15 is used.Described shock absorber outrigger 8 by two U font framves dress is formed and described shock absorber dividing plate 9 is fixedly clamped in the junction of two U font framves, and 9 on described two U font framves and shock absorber dividing plate by connecting bolt 12 be connected with attaching nut 13 that connecting bolt 12 is used.
To sum up, described shock absorber dividing plate 9, shock absorber outrigger 8, two shock absorber cores, vibration isolation rubber 11, connecting bolt 12 and attaching nuts 13 constitute rubber shock absorbers, and wherein shock absorber dividing plate 9, shock absorber outrigger 8, connecting bolt 12 and attaching nut 13 form the integral installation fixed structure that is used to install and fix two shock absorber cores and vibration isolation rubber 11.Because the diameter of vibration isolation rubber 11 is greater than the inscribed circle diameter of described triangular open space, thereby the vibration isolation rubber after the installation 11 has certain precommpression deflection.Simultaneously, the active force that utilizes the precommpression deflection of vibration isolation rubber 11 to be produced supports and fixing described vibration damping core.During actual the use, the rigidity of rubber shock absorber can be come corresponding the adjustment by the material or the size (diameter) of vibration isolation rubber 11 that change vibration isolation rubber 11.
During actual the use, can select the rubber shock absorber of respective numbers according to the concrete structure needs of vibratory roller.Be installed in respectively on vehicle frame gripper shoe 6 and the shock absorber gripper shoe 5, particularly in two shock absorber cores one outer in the described rubber shock absorber: the shock absorber core that a shock absorber core is installed on the vehicle frame gripper shoe 6 and described rubber shock absorber opposite side is promptly inboard in the described rubber shock absorber outside is installed on the shock absorber gripper shoe 5; And a plurality of shock absorber core one 10-1 in a plurality of rubber shock absorbers of a rubber shock absorber group and a plurality of shock absorber core two 10-2 form two different installing and locating circles respectively, and connecting line between the geometric center point of shock absorber core one 10-1 and shock absorber core two 10-2 and the angle between vertical direction are α=45 °.In the actual use, the connecting line of shock absorber core one 10-1 and shock absorber core two 10-2 geometric center point remains unchanged with the angle that the two corresponding installing and locating circle of living in is gone up the tangent line of the above-mentioned geometric center point of process, and the angle value is carried out choose reasonable according to the vibration-proof structure actual conditions.
Described vibratory roller driving side is identical with the vibration insulating system of vibration side, and the vibration insulating system of both sides keeps static relatively at the work driving process of vibratory roller, and vibrating shaft 2 and vibration steel wheel 1 adopt hydraulic motor 14 directly to drive.
The course of work of the present utility model is: vibratory roller is under static state the time, gravity of vehicle frame acts on the rubber shock absorber by last vehicle frame gripper shoe 6 on it, the active force that 1 pair of steel wheel of vibration is gone up vehicle frame acts on the shock absorber by shock absorber gripper shoe 5 then, and above-mentioned two kinds of active force in the vertical directions reach balance.In addition, owing to act on the two kinds of active force in the vertical directions conllinear not on the rubber shock absorber, in dynamic balance, also rubber shock absorber has been produced a moment, and under the effect of this moment, relatively rotate between integral installation fixed structure of forming by shock absorber dividing plate 9, shock absorber outrigger 8, connecting bolt 12 and attaching nut 13 and vibration damping core, correspondingly the vibration isolation rubber in the rubber shock absorber 11 on the basis of pre compressed magnitude further compressive strain produce opposite moment and the above-mentioned equalising torque that acts on the rubber shock absorber.
Vibratory roller is following time in working order, and vibration steel wheel 1 and vibrating shaft 2 are in rotary state, and the whole vibration insulating system in the utility model keeps static relatively.Particularly: the gravity of active force vehicle frame on balance of 1 pair of shock absorber gripper shoe 5 of vibration steel wheel of vibratory roller, also want the periodically variable in time radially exciting force of balance direction.In the vibration period each is instantaneous, relatively rotate between integral installation fixed structure of being made up of shock absorber dividing plate 9, shock absorber outrigger 8, connecting bolt 12 and attaching nut 13 under the effect of exciting force and vibration damping core, vibration isolation rubber in all rubber shock absorbers 11 is corresponding to be out of shape and all vibration isolation rubbers 11 distortion backs are produced makes a concerted effort and the exciting force balance.Because exciting force radially constantly changes, the moment difference that exciting force is produced on rubber shock absorber on different directions, thereby vibration isolation rubber 11 deflections are also different in all rubber shock absorbers, it is identical that but vibration damping core geometric center point is positioned at the deflection of vibration isolation rubber 11 of two rubber shock absorbers on the same diameter, on the contrary the deflection difference of vibration isolation rubber 11 then; And under static state, the deflection of the vibration isolation rubber 11 in each rubber shock absorber is identical.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (9)
1. vibratory roller vibration absorber, it is characterized in that: comprise that two groups of symmetries are laid in the rubber shock absorber group that vibratory roller vibration steel wheel (1) is gone up set vibrating shaft (2) left and right sides, in two axle beds (4), described axle bed (4) was fixedly mounted in the vibration steel wheel (1) by support member about the both ends, the left and right sides of described vibrating shaft (2) were installed in by bearing (3) respectively; Described rubber shock absorber group comprise vertically to coaxial be installed in that axle bed (4) is gone up or by Bearning mechanism coaxial be installed in shock absorber gripper shoe (5) on the vibrating shaft (2), be positioned at shock absorber gripper shoe (5) outside and be used for the last vehicle frame gripper shoe (6) of vehicle frame on the described vibratory roller of support fixation and along the circumferential direction evenly be laid in shock absorber gripper shoe (5) and last vehicle frame gripper shoe (6) between a plurality of rubber shock absorbers, described on vehicle frame gripper shoe (6) and shock absorber gripper shoe (5) be arranged in parallel; Described rubber shock absorber comprises and being installed between vehicle frame gripper shoe (6) and the shock absorber gripper shoe (5) and the inner shock absorber outrigger (8) that is divided into the identical shock absorber chamber of two structures by shock absorber dividing plate (9), be laid in two shock absorber cores of two shock absorber chamber middle inside respectively and be laid in the shock absorber core symmetrically and described shock absorber cavity wall between a plurality of vibration isolation rubbers (11) in the space, two shock absorber cores all are level and are installed in respectively on vehicle frame gripper shoe (6) and the shock absorber gripper shoe (5) to setting and the two, described two shock absorber cores are for being installed in shock absorber core one (10-1) and the shock absorber core two (10-2) on vehicle frame gripper shoe (6) and the shock absorber gripper shoe (5), and shock absorber dividing plate (9) is arranged on shock absorber outrigger (8) middle inside; A plurality of shock absorber cores one (10-1) in described a plurality of rubber shock absorber and a plurality of shock absorber core two (10-2) are all along the circumferential direction evenly laid, and all the axis with vibrating shaft (2) is that center line is laid, and described a plurality of shock absorber cores one (10-1) and a plurality of shock absorber core two (10-2) are laid in respectively on two vertical planes.
2. according to the described a kind of vibratory roller vibration absorber of claim 1, it is characterized in that: described shock absorber chamber be shaped as square, the quantity of vibration isolation rubber (11) is four, and four vibration isolation rubbers (11) are separately positioned on four drift angles in described shock absorber chamber; Described shock absorber core is a four-prism shape steel shock absorber core, and four sidewalls of described shock absorber core and the angle between described shock absorber cavity wall are 45 °.
3. according to claim 1 or 2 described a kind of vibratory roller vibration absorbers, it is characterized in that: connecting line between described two shock absorber core geometric center point and the angle between vertical direction are α and 30 °≤α≤60 °.
4. according to the described a kind of vibratory roller vibration absorber of claim 3, it is characterized in that: connecting line between described two shock absorber core geometric center point and the angle between vertical direction are α=45 °.
5. according to the described a kind of vibratory roller vibration absorber of claim 2, it is characterized in that: the space between described shock absorber core and described shock absorber cavity wall is a triangular open space, and vibration isolation rubber (11) is cylindrical-shaped structure and its diameter inscribed circle diameter greater than described triangular open space.
6. according to claim 1 or 2 described a kind of vibratory roller vibration absorbers, it is characterized in that: also comprise two support backing plates (7) that are installed in respectively on shock absorber gripper shoe (5) and last vehicle frame gripper shoe (6) inwall, described two shock absorber cores support backing plates (7) by two respectively and are installed on vehicle frame gripper shoe (6) and the shock absorber gripper shoe (5).
7. according to the described a kind of vibratory roller vibration absorber of claim 6, it is characterized in that: described shock absorber core, support between backing plate (7) and last vehicle frame gripper shoe (6) and shock absorber gripper shoe (5) all by erection bolt (15) be connected with installation nut (16) that erection bolt (15) is used.
8. according to claim 1 or 2 described a kind of vibratory roller vibration absorbers, it is characterized in that: the quantity of described a plurality of rubber shock absorbers is 4.
9. according to claim 1 or 2 described a kind of vibratory roller vibration absorbers, it is characterized in that: described shock absorber outrigger (8) by two U font framves dress is formed and described shock absorber dividing plate (9) is fixedly clamped in the junction of two U font framves, between described two U font framves and shock absorber dividing plate (9) by connecting bolt (12) be connected with attaching nut (13) that connecting bolt (12) is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201047784U CN201581336U (en) | 2010-01-28 | 2010-01-28 | Vibration absorber for vibrator roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201047784U CN201581336U (en) | 2010-01-28 | 2010-01-28 | Vibration absorber for vibrator roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201581336U true CN201581336U (en) | 2010-09-15 |
Family
ID=42723333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201047784U Expired - Lifetime CN201581336U (en) | 2010-01-28 | 2010-01-28 | Vibration absorber for vibrator roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201581336U (en) |
-
2010
- 2010-01-28 CN CN2010201047784U patent/CN201581336U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20100915 Effective date of abandoning: 20100128 |