CN103215880B - Eccentric shaft of pavement roller vibration generator - Google Patents
Eccentric shaft of pavement roller vibration generator Download PDFInfo
- Publication number
- CN103215880B CN103215880B CN201310139829.5A CN201310139829A CN103215880B CN 103215880 B CN103215880 B CN 103215880B CN 201310139829 A CN201310139829 A CN 201310139829A CN 103215880 B CN103215880 B CN 103215880B
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- China
- Prior art keywords
- eccentric
- eccentric shaft
- chute
- shaft
- shaft body
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- Expired - Fee Related
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- Road Paving Machines (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention relates to an eccentric shaft of a pavement roller vibration generator. The shaft body of the eccentric shaft is cylindrical; a sliding chute axially parallel to the shaft body is arranged inside the shaft body; a chute opening of the sliding chute is positioned on the circular circumference on one side of the shaft body; the sliding chute is internally provided with an eccentric sliding block; the bottom end of the eccentric sliding block is connected with the bottom of the sliding chute through an extension spring; and the barycenter of the eccentric shaft composed of the eccentric sliding block and the shaft body is positioned on the axle of the shaft body when the extension spring is located at a reset state. The eccentric degree can automatically change along with the rotary speed, so that gentle starting is realized, and the vibration is stopped quickly.
Description
Technical field
The present invention relates to a kind of pavement roller vibration generator, specifically a kind of eccentric shaft of pavement roller vibration generator.
Background technology
At present, vibratory roller is the key equipment of the constructions such as high-grade highway, dam, building operations, groove basis, pipeline backfill, and oscillating component is the key component of vibratory roller, existing vibrating device mostly utilizes the High Rotation Speed of eccentric shaft to realize vibration, there is following defect: 1, starting eccentric shaft running needs comparatively high pulling torque, when power section loads suddenly, load is large, excessive to power section loss; 2, cut off due to effect of inertia after power, eccentric shaft still can rotate the long period, can not realize immediately stopping vibration.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of eccentric shaft of pavement roller vibration generator, and its eccentric degree can change automatically with rotary speed, realizes starting gently, and quick failure of oscillation.
The present invention for solving the problems of the technologies described above adopted technical scheme is: a kind of eccentric shaft of pavement roller vibration generator, the axle body of eccentric shaft is cylindrical, a chute axially parallel with it is provided with in the inside of axle body, the notch of chute is positioned on the side periphery of axle body, eccentric shoe is provided with in chute, the bottom of eccentric shoe is connected with the bottom of chute by extension spring, and when extension spring is in reset mode, the center of gravity of the eccentric shaft that eccentric shoe and axle body are formed is positioned on the axis of axle body.
The both sides of described eccentric shoe bottom are respectively equipped with projection, and the notch both sides of chute are provided with the card edge relative with projection.
The invention has the beneficial effects as follows: when eccentric shaft does not rotate, eccentric shoe in axle body is in initial position under the effect of extension spring, the center of gravity of eccentric shaft that now eccentric shoe and axle body are formed is positioned on the axis of axle body, rotate the moment of torsion needed less, can start gently under the drive of power source, reduce the loss of power source.After starting running, eccentric shaft rotating speed increases, and eccentric shoe because centrifugal action is to chute notch one Slideslip, thus makes the offset of eccentric shaft increase gradually, and oscillation intensity also increases gradually.After eccentric shaft cuts off power, reduce with speed, eccentric shoe starts to reset gradually due to the effect of extension spring, the offset of eccentric shaft reduces, oscillation intensity also reduces gradually, therefore, although eccentric shaft of the present invention also can continue to rotate certain hour after cut-out power, but its vibration has obvious reduction with existing eccentric shaft, achieves quick failure of oscillation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram being in halted state in a kind of embodiment of eccentric shaft.
Fig. 2 is the schematic diagram being in rotation status in the another kind of embodiment of eccentric shaft.
Mark in figure: 1, axle body, 2, chute, 3, notch, 4, eccentric shoe, 5, extension spring, 6, projection, 7, card edge.
Detailed description of the invention
Illustrate embodiments of the present invention by reference to the accompanying drawings.
A kind of eccentric shaft of pavement roller vibration generator, the axle body 1 of eccentric shaft is cylindrical, a chute 2 axially parallel with it is provided with in the inside of axle body 1, the notch 3 of chute 2 is positioned on the side periphery of axle body 1, be provided with eccentric shoe 4 in chute 2, this eccentric shoe 4 slides along chute to notch 3 direction under the action of the centrifugal.The bottom of eccentric shoe 4 is connected with the bottom of chute 2 by extension spring 5, and when extension spring 5 is in reset mode, the center of gravity of the eccentric shaft that eccentric shoe 4 and axle body 1 are formed is positioned on the axis of axle body 1.Therefore, under the state that eccentric shaft stops, its center of gravity is not off-axis, and it is less to rotate the moment of torsion needed.With the rotation of eccentric shaft, eccentric shoe 4 slides to notch 3 direction gradually, and the offset of eccentric shaft increases gradually, and Oscillation Amplitude also increases gradually.When eccentric shaft and power source depart from, rotating speed reduces gradually, and offset reduces gradually, and Oscillation Amplitude also reduces gradually.
The load caused extension spring 5 in order to avoid rotating speed is too high is excessive, projection 6 can be respectively equipped with in the both sides of eccentric shoe 4 bottom, notch 3 both sides of chute 2 are provided with the card relative with projection 6 along 7, when eccentric shoe 4 moves to notch position, projection along blocking, can be prevented eccentric shoe 4 to be thrown out of by card.
Claims (2)
1. the eccentric shaft of a pavement roller vibration generator, it is characterized in that: the axle body (1) of eccentric shaft is cylindrical, a chute (2) axially parallel with it is provided with in the inside of axle body (1), the notch (3) of chute (2) is positioned on the side periphery of axle body (1), eccentric shoe (4) is provided with in chute (2), the bottom of eccentric shoe (4) is connected with the bottom of chute (2) by extension spring (5), when extension spring (5) is in reset mode, the center of gravity of the eccentric shaft that eccentric shoe (4) and axle body (1) are formed is positioned on the axis of axle body (1).
2. the eccentric shaft of a kind of pavement roller vibration generator as claimed in claim 1, it is characterized in that: the both sides of described eccentric shoe (4) bottom are respectively equipped with projection (6), notch (3) both sides of chute (2) are provided with the card relative with projection (6) along (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139829.5A CN103215880B (en) | 2013-04-22 | 2013-04-22 | Eccentric shaft of pavement roller vibration generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139829.5A CN103215880B (en) | 2013-04-22 | 2013-04-22 | Eccentric shaft of pavement roller vibration generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103215880A CN103215880A (en) | 2013-07-24 |
| CN103215880B true CN103215880B (en) | 2015-04-01 |
Family
ID=48814005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310139829.5A Expired - Fee Related CN103215880B (en) | 2013-04-22 | 2013-04-22 | Eccentric shaft of pavement roller vibration generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103215880B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114546A1 (en) * | 2015-12-28 | 2017-07-06 | Volvo Construction Equipment Ab | Eccentric assembly for a vibration compacting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3523955A1 (en) * | 1985-07-04 | 1987-01-08 | Fritz Prof Dr Rostock | Vibrator unit |
| JPH01315503A (en) * | 1988-06-15 | 1989-12-20 | Sakai Jukogyo Kk | Vibration roller |
| JP2010240553A (en) * | 2009-04-03 | 2010-10-28 | Hitachi Constr Mach Co Ltd | Vibration generator |
| CN102094378A (en) * | 2011-03-23 | 2011-06-15 | 三一重工股份有限公司 | Amplitude modulation excitation mechanism and amplitude modulation component |
| CN203238522U (en) * | 2013-04-22 | 2013-10-16 | 河南科技大学 | Eccentric shaft for road roller oscillating device |
-
2013
- 2013-04-22 CN CN201310139829.5A patent/CN103215880B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3523955A1 (en) * | 1985-07-04 | 1987-01-08 | Fritz Prof Dr Rostock | Vibrator unit |
| JPH01315503A (en) * | 1988-06-15 | 1989-12-20 | Sakai Jukogyo Kk | Vibration roller |
| JP2010240553A (en) * | 2009-04-03 | 2010-10-28 | Hitachi Constr Mach Co Ltd | Vibration generator |
| CN102094378A (en) * | 2011-03-23 | 2011-06-15 | 三一重工股份有限公司 | Amplitude modulation excitation mechanism and amplitude modulation component |
| CN203238522U (en) * | 2013-04-22 | 2013-10-16 | 河南科技大学 | Eccentric shaft for road roller oscillating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103215880A (en) | 2013-07-24 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20160422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |