CN104233931B - Amplitude adjusting device, vibration device and road roller - Google Patents
Amplitude adjusting device, vibration device and road roller Download PDFInfo
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- CN104233931B CN104233931B CN201410408742.8A CN201410408742A CN104233931B CN 104233931 B CN104233931 B CN 104233931B CN 201410408742 A CN201410408742 A CN 201410408742A CN 104233931 B CN104233931 B CN 104233931B
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- eccentric block
- amplitude modulation
- modulation apparatus
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Abstract
The invention provides an amplitude adjusting device of a road roller. The amplitude adjusting device comprises a shaft, two fixed eccentric blocks and a movable cavity assembly, wherein the fixed eccentric blocks and the movable cavity assembly are arranged on the shaft; the movable cavity assembly is internally provided with a movable eccentric block which can rotate relative to the movable cavity assembly; a limiting device for limiting the movement region of the movable eccentric block is arranged on the movable cavity assembly, and the rotation angle of the movable eccentric block in the movement region is more than or less than 180 degrees. When the amplitude adjusting device rotates in the clockwise direction and in the anticlockwise direction, a stress bearing region of an inner ring is not in the same region, stress is alleviated, and fatigue damage is prevented, so that the service life of the inner ring can be prolonged and the service life of the amplitude adjusting device is further prolonged. Furthermore, the invention provides a vibration device comprising the amplitude adjusting device and the road roller comprising the amplitude adjusting device or the vibration device.
Description
Technical field
The present invention relates to engineering machinery field, particularly to a kind of amplitude modulation apparatus and the vibrating device containing this amplitude modulation apparatus
And road roller.
Background technology
Currently used road roller, its exciting force mainly relies on the eccentric on vibrating shaft to rotate generation, eccentric
Device includes the fixed eccentric block being fixedly installed on axle, and the movable eccentric block that can rotate relative to axle, exciting force big
It is little that to rely primarily on fixed eccentric block different with the eccentric throw reversely formed from the superposition of movable eccentric block, and rotating speed difference and
Formed.Specifically, axle is provided with fixed eccentric block and movable eccentric block, and fixed eccentric block is fixedly installed on axle, and fixing inclined
The quantity of heart block is two, and movable eccentric block is rotationally arranged between two fixed eccentric blocks.When fixed eccentric block and work
When dynamic eccentric block overlaps, the eccentric throw that eccentricity is fixed eccentric block of the amplitude modulation apparatus that both are formed is plus fixed eccentric block
Eccentric throw.When movable eccentric block is 180 degree with fixed eccentric block phase place, the eccentric throw of formation is the eccentric throw of fixed eccentric block
Deduct the eccentric throw of movable eccentric block.
Said structure be transferred to width device, be primarily present following deficiency:
The most movable eccentric block overlaps with fixed eccentric block or the most contrary, and position of centre of gravity is all located at fixed eccentric block one
Side, and on same straight line, simply the position of centroidal distance center of rotation is different.The most movable eccentric block and fixing bias
Block overlaps or the most contrary, and the direction of the centrifugal force produced during amplitude modulation apparatus forward and reverse is also identical, i.e. same
On bar straight line.Therefore, for supporting the bearing of amplitude modulation apparatus, owing to the bearing area of bearing inner race is the most constant, impact
Service life of bearing.
In sum, how to provide a kind of abrasion less, the amplitude modulation apparatus that service life is longer, and fill containing this amplitude modulation
The vibrating device put and road roller, become those skilled in the art to need badly and solved the technical problem that.
Summary of the invention
In view of this, one of the problem to be solved in the present invention is how to provide a kind of abrasion less, and service life is longer
Amplitude modulation apparatus.
The two of the problem to be solved in the present invention are how to provide a kind of vibrating device including above-mentioned amplitude modulation apparatus.
The three of the problem to be solved in the present invention are how to provide a kind of road roller including above-mentioned amplitude modulation apparatus.
For solving one of the problems referred to above, the present invention proposes a kind of amplitude modulation apparatus, for road roller, described amplitude modulation apparatus bag
Include axle, fixed eccentric block and movable cavity components, described fixed eccentric block and movable cavity components to be arranged on described axle, described
Being provided with the movable eccentric block that can rotate relative to movable cavity components in movable cavity components, described movable cavity components is provided with
For limiting the stopping means of described movable eccentric block zone of action, the zone of action of described movable eccentric block is more than or less than
180 degree.
As the improvement on the one hand of a kind of amplitude modulation apparatus of the present invention, described axle is provided with keyway and flat key, described fixing
Eccentric block and described movable cavity components are fixedly installed on described axle by described flat key.
As the improvement on the one hand of a kind of amplitude modulation apparatus of the present invention, described fixed eccentric block and described movable cavity components
It is welded on described axle.
As the improvement on the one hand of a kind of amplitude modulation apparatus of the present invention, described movable cavity components includes being positioned at movable bias
First baffle plate of block both sides and second baffle, described first baffle plate and second baffle be arranged in parallel.
As the improvement on the one hand of a kind of amplitude modulation apparatus of the present invention, described stopping means includes the first backing pin and second gear
Pin, described first backing pin and the second backing pin are respectively arranged on described first baffle plate and second baffle.
Company as the improvement on the one hand of a kind of amplitude modulation apparatus of the present invention, described first backing pin and the second backing pin Yu axle center
The angle that line is formed is less than 180 degree.
As the improvement on the one hand of a kind of amplitude modulation apparatus of the present invention, described movable cavity components also includes that inner ring is with outer
Circle, described inner ring is arranged on described axle, and described movable eccentric block is sheathed on described inner ring, and described outer ring is covered in described the
On one baffle plate and second baffle.
As the improvement on the one hand of a kind of amplitude modulation apparatus of the present invention, described first baffle plate and/or second baffle also set
Oilhole, described oilhole is had to be provided with plug screw.
The amplitude modulation apparatus of said structure, for road roller, including axle, fixed eccentric block and movable cavity components, fixing
Eccentric block and movable cavity components are arranged on described axle, be provided with and can rotate relative to movable cavity components in movable cavity components
Movable eccentric block, movable cavity components is provided with the stopping means for limiting described movable eccentric block zone of action, movable
The zone of action of eccentric block is more than or less than 180 degree.The amplitude modulation apparatus of this structure, stopping means controls the work of movable eccentric block
Dynamic region, its zone of action is less than or greater than 180 degree, when amplitude modulation apparatus turns clockwise and rotates counterclockwise, its inner ring
Stress supporting region is not at the same area, and stressing conditions is improved, and prevents fatigue rupture, and therefore, the service life of inner ring can
It is extended, and then extends the service life of amplitude modulation apparatus.
For solving the two of the problems referred to above, the present invention proposes a kind of vibrating device, and specifically, vibrating device includes as taken up an official post
One described amplitude modulation apparatus.
For solving the three of the problems referred to above, the present invention proposes a kind of road roller, and specifically, road roller includes as above any one
Described amplitude modulation apparatus or vibrating device.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.
Fig. 1 is the sectional structure schematic diagram of a kind of amplitude modulation apparatus of the present invention；
Fig. 2 is the front view of a kind of amplitude modulation apparatus of the present invention；
Fig. 3 is that the A A of Fig. 2 is to sectional view；
Fig. 4 is schematic diagram during movable eccentric block and the fixed eccentric block coincidence of amplitude modulation apparatus；
Fig. 5 is that the B B of Fig. 4 is to sectional view；
Fig. 6 movable amplitude modulation device turns clockwise schematic diagram；
The partial sectional view of Fig. 7 Fig. 6；
Fig. 8 is inner ring distribution of force figure；
Fig. 9 is the distribution of force figure of the present invention a kind of amplitude modulation apparatus inner ring.
In Fig. 1 to Fig. 7, the corresponding relation of reference is:
The movable eccentric block of 1 axle 2 fixed eccentric block 3
4 first backing pin 5 plug screw 6 second backing pins
The movable cavity components in 7 inner ring 8 outer rings 9
10 first baffle plate 11 second baffles
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Amplitude modulation apparatus as shown in Figures 1 to 7, for road roller, amplitude modulation apparatus specifically includes axle 1, fixed eccentric block 2
Being arranged on axle 1 with movable cavity components 9, fixed eccentric block and movable cavity components 9, movable eccentric block 3 is arranged at movable chamber
In body assembly 9, and can be additionally provided with for limiting movable eccentric block 3 alive in movable cavity components 9 on rotation activity cavity components 9
The stopping means in dynamic region, and, the zone of action of movable eccentric block 3, i.e. its rotational angle are more than or less than 180 degree.
Technique scheme, in the first embodiment, axle 1 is provided with keyway and flat key, fixed eccentric block 3 and movable chamber
Body assembly 9 is fixedly installed on axle 1 by flat key.In another kind of embodiment, fixed eccentric block 2 and movable cavity components 9 are also
Can be fixed on axle 1 by welding manner.It should be noted that after movable cavity components 9 is welded on axle 1, it is also possible to
Fixed eccentric block 2 is welded on movable cavity components 9.
In technique scheme, movable eccentric block 3 is located in movable cavity components 9, and movable eccentric block 3 can be relative to activity
Cavity components 9 rotates.Specifically, movable cavity components 9 includes being arranged at movable eccentric block 3 both sides the first baffle plate 10 and the
Two baffle plates 11, the first baffle plate 10 and second baffle 11 be arranged in parallel, and the first baffle plate 10 and second baffle 11 are all sheathed on axle 1,
For convenience of the activity of movable eccentric block 3, it is preferably shaped to disc.
Owing to the region of movable eccentric block 3 activity needs to fill fluid, therefore, an airtight space need to be formed, therefore,
Movable cavity components 9 also includes inner ring 7 and outer ring 8, and inner ring 7 is sheathed on axle 1, and movable eccentric block 3 is arranged on inner ring 7, and
Being placed between the first baffle plate 10 and second baffle 11, outer ring 8 is covered on the first baffle plate 10 and second baffle 11.Meanwhile, for protecting
The sealing of the zone of action of card activity eccentric block 3, between inner ring 7 and the first baffle plate 10 and second baffle 11, outer ring 8 and first
Between baffle plate 10 and second baffle 11, can also sealing member be set in case oil liquid leakage.
In technique scheme, stopping means includes that backing pin, backing pin specifically include the first backing pin 4 and the second backing pin 6, first
Backing pin 4 and the second backing pin 6 can be respectively arranged on the first baffle plate 10 and second baffle 11, it should be noted that the first backing pin 4 He
Second backing pin 6 also can be arranged on the first baffle plate 10 or second baffle 11 simultaneously, and this set-up mode also can play restriction activity inclined
The effect of heart block 3 zone of action.
From loading angle analysis, if do not limited the zone of action of movable eccentric block 3, when fixed eccentric block 2 and activity are eccentric
When block 3 overlaps, as shown in Figure 8, the stress area of the inner ring 7 being arranged on axle 1 concentrates on A district, and when movable eccentric block 3 is with solid
Determining the phase place of eccentric block 2 when being 180 degree, the stress area of inner ring 7 still concentrates on A district, the stress of the inner ring 7 being arranged on axle 1
Region is identical, and no matter fixed eccentric block 2 and movable eccentric block 3 overlap, or movable eccentric block 3 and the phase place of fixed eccentric block 2
When being 180 degree, the stress area of inner ring 7 is the most identical, is A district, and therefore, inner ring 7 is easily damaged, and then affects amplitude modulation apparatus
Service life.
During for ensureing amplitude modulation apparatus forward or reverse, the action direction of two centrifugal force of generation is not 180 degree, first gear
The angle that the line in pin 4 and the second backing pin 6 and axle center is formed is less than 180 degree, and the i.e. first backing pin 4, axle center and the second backing pin 6 are not
Point-blank, the zone of action of movable eccentric block 3 is more than 180 degree or less than 180 degree.The amplitude modulation apparatus of this structure, such as Fig. 9
Shown in, when amplitude modulation apparatus turns clockwise, the stress supporting region of inner ring 7 is A district, and when amplitude modulation apparatus rotates counterclockwise,
The stress supporting region of inner ring 7 is B district, and A district and B district no longer overlap, and the stressing conditions of inner ring 7 is also improved, therefore, and inner ring 7
Service life can be extended, and then extend amplitude modulation apparatus service life.
In technique scheme, owing to needs fill fluid in movable cavity components 9, movable cavity components 9 also sets
There are oilhole, oilhole to be provided with plug screw 5, when needing to fill fluid, can be filled by this oilhole.It should be noted that oilhole
May be disposed on the first baffle plate 10, it is also possible to be arranged on second baffle 11, certainly, in order to easy to operate, it is also possible to first
Baffle plate 10 and second baffle 11 respectively set one.The concrete structure of plug screw 5 refers to prior art, is not described in detail in this.
Further, fixed eccentric block 2 is welded on the first baffle plate 10 and second baffle 11, the quantity of fixed eccentric block 2
Usually two, it is respectively arranged at the both sides of movable eccentric block 3, therefore, is positioned at the fixed eccentric block 2 of movable eccentric block 3 both sides
Can be respectively welded on the first baffle plate 10 and second baffle 11.
The amplitude modulation apparatus of said structure, stopping means controls the zone of action of movable eccentric block 3, and its zone of action is less than
Or more than 180 degree, when amplitude modulation apparatus turn clockwise with when rotating counterclockwise, the stress supporting region of inner ring 7 not at the same area,
Stressing conditions is improved, and prevents fatigue rupture, and therefore, the service life of inner ring 7 can be extended, and then extends amplitude modulation dress
The service life put.
On the other hand, the present invention also proposes a kind of vibrating device, and specifically, vibrating device includes that amplitude modulation as above fills
Put.
Finally, the present invention also proposes a kind of road roller, and specifically, road roller includes amplitude modulation apparatus as above or vibration
Device.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. an amplitude modulation apparatus, for road roller, it is characterised in that described amplitude modulation apparatus includes axle (1), fixed eccentric block (2)
It is arranged on described axle (1) with movable cavity components (9), described fixed eccentric block (2) and movable cavity components (9), described work
The movable eccentric block (3) that can rotate, described movable cavity group it is provided with relative to movable cavity components (9) in dynamic cavity components (9)
Part (9) is provided with the stopping means for limiting described movable eccentric block (3) zone of action, the work of described movable eccentric block (3)
Dynamic region is more than or less than 180 degree.
Amplitude modulation apparatus the most according to claim 1, it is characterised in that described axle (1) is provided with keyway and flat key, described solid
Determine eccentric block (2) and described movable cavity components (9) is fixedly installed on described axle (1) by described flat key.
Amplitude modulation apparatus the most according to claim 1, it is characterised in that described fixed eccentric block (2) and described movable cavity
Assembly (9) is welded on described axle (1).
Amplitude modulation apparatus the most according to claim 1, it is characterised in that described movable cavity components (9) includes being positioned at activity
First baffle plate (10) of eccentric block (3) both sides and second baffle (11), described first baffle plate (10) is parallel with second baffle (11)
Arrange.
Amplitude modulation apparatus the most according to claim 4, it is characterised in that described stopping means includes the first backing pin (4) and
Two backing pins (6), described first backing pin (4) and the second backing pin (6) are respectively arranged at described first baffle plate (10) and second baffle
(11) on.
Amplitude modulation apparatus the most according to claim 5, it is characterised in that described first backing pin (4) and the second backing pin (6) and axle
The angle that the line of the heart is formed is less than 180 degree.
Amplitude modulation apparatus the most according to claim 6, it is characterised in that described movable cavity components (9) also includes inner ring
And outer ring (8) (7), described inner ring (7) is arranged on described axle (1), and described movable eccentric block (3) is sheathed on described inner ring (7)
On, described outer ring (8) are covered on described first baffle plate (10) and second baffle (11).
8. according to the amplitude modulation apparatus according to any one of claim 4 to 7, it is characterised in that described first baffle plate (10) and/or
Being additionally provided with oilhole on second baffle (11), described oilhole is provided with plug screw (5).
9. a vibrating device, it is characterised in that described vibrating device includes the amplitude modulation according to any one of claim 1 to 8
Device.
10. a road roller, it is characterised in that include the amplitude modulation apparatus according to any one of claim 1 to 8 or claim
Vibrating device described in 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408742.8A CN104233931B (en) | 2014-08-19 | 2014-08-19 | Amplitude adjusting device, vibration device and road roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408742.8A CN104233931B (en) | 2014-08-19 | 2014-08-19 | Amplitude adjusting device, vibration device and road roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104233931A CN104233931A (en) | 2014-12-24 |
| CN104233931B true CN104233931B (en) | 2017-01-11 |
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ID=52222771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410408742.8A Active CN104233931B (en) | 2014-08-19 | 2014-08-19 | Amplitude adjusting device, vibration device and road roller |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350434B (en) * | 2015-10-28 | 2017-11-24 | 湖南三一路面机械有限公司 | A kind of vibrated roller and its amplitude modulation apparatus |
| CN108474185B (en) * | 2015-12-28 | 2020-10-09 | 沃尔沃建筑设备公司 | Eccentric assembly for vibratory compactor |
| CN109112933B (en) * | 2018-10-31 | 2024-01-23 | 徐工集团工程机械股份有限公司 | Screed vibrating mechanism and paver |
| CN110292986B (en) * | 2019-06-25 | 2021-08-31 | 浙江海洋大学 | Stepless portable jigger polarization mechanism amplitude frequency mechanism |
| CN110656556B (en) * | 2019-10-12 | 2021-06-15 | 刘明攀 | Road device is pressed in vibrations of highway construction usefulness |
| US11421390B2 (en) | 2020-10-22 | 2022-08-23 | Caterpillar Paving Products Inc. | Adjustable mass eccentric for multi-amplitude vibratory mechanism for compactor and system and method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3721129A (en) * | 1971-08-13 | 1973-03-20 | Ato Inc | Eccentric system for vibratory earth compactor |
| US4342523A (en) * | 1981-02-24 | 1982-08-03 | Koehring Company | High-low force amplitude device |
| CN2822800Y (en) * | 2005-08-30 | 2006-10-04 | 长安大学 | Energy-saving inertial vibration exciter |
| CN201261855Y (en) * | 2008-07-21 | 2009-06-24 | 徐州工程机械科技股份有限公司 | Composite amplitude modulation mechanism used for vibrating compaction machine |
| CN101503873B (en) * | 2008-12-04 | 2011-02-09 | 合肥永安绿地工程机械有限公司 | Eccentric vibrating mechanism |
| CN101949125B (en) * | 2010-09-28 | 2012-09-05 | 三一重工股份有限公司 | Vibration exciting device for road roller and road roller |
| CN102653935B (en) * | 2012-05-03 | 2014-10-15 | 三一重工股份有限公司 | Vibrating device with adjustable amplitude and road roller |
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2014
- 2014-08-19 CN CN201410408742.8A patent/CN104233931B/en active Active
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| CN104233931A (en) | 2014-12-24 |
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