CN2471434Y - Eccentric device with changable amplitude - Google Patents
Eccentric device with changable amplitude Download PDFInfo
- Publication number
- CN2471434Y CN2471434Y CN 00266305 CN00266305U CN2471434Y CN 2471434 Y CN2471434 Y CN 2471434Y CN 00266305 CN00266305 CN 00266305 CN 00266305 U CN00266305 U CN 00266305U CN 2471434 Y CN2471434 Y CN 2471434Y
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- CN
- China
- Prior art keywords
- eccentric
- axle
- eccentric block
- amplitude variable
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model relates to a vibrator generator system which can provide multi-amplitudes, comprising two eccentric blocks and a shaft through the two eccentric blocks. The utility model is characterized in that each eccentric block has a concave circular bead and the two circular beads are in parallel folded with each other face to face; one of the eccentric blocks is connected with the shaft by a plug-in in order to make the eccentric block turn with the shaft, while the other eccentric block can rotate freely relative to the shaft; each eccentric block has a hole matched with the shaft respectively and the aperture is larger than the external diameter of the shaft in order to enable the hole slide relative to the shaft. The utility model has the advantages of simple structure, low cost and convenient installation and replacement.
Description
The utility model relates to a kind of vibration generating arrangement, particularly relates to a kind of vibration generating arrangement that can provide and select multiple amplitude.
The prior art of known above-mentioned same device all has complicated structure, so the manufacturing expense height, is not easy to maintaining.Wherein typical example is a laid-open U.S. Patents double-amplitude vibrational device generating means (US.3722381).The vibration machine of this patent has one to be welded in first eccentric block on the power shaft and one and to straddle second eccentric block on first eccentric block by bipassage ring, and this second eccentric block can freely rotate around axle.As mentioned above, because of first eccentric block is welded on the axle, the eccentric part of second eccentric block is welded on the ring, repairs when changing and must change axle simultaneously.And manufacturing, the assembling of these several in addition parts, weld that all expense is higher, the time is longer.
The purpose of this utility model provides a kind of simple in structure, and manufacturing expense is low, is convenient to install, change, and is used to vibrate the amplitude variable eccentric that places such as superficial compaction take place.
The utility model comprises first and second eccentric blocks, an axle that is through in above-mentioned two eccentric blocks, one recessed shoulder is arranged in above-mentioned each eccentric block, said shoulder faces one another also being nested in together on the column position of face, wherein an eccentric block and above-mentioned axle are bonded together them by the plug-in unit that is inserted between the two, the rotation together of eccentric block and axle, and another eccentric block can freely rotate with respect to above-mentioned axle.Each off-centre all has the hole that cooperates with axle, and its aperture is slightly larger than the external diameter of axle, can slide on the external diameter of axle relatively in above-mentioned hole.
The utility model also has following technical characterictic: said each eccentric block has the first and second two radial engagement planes of placing two relative place's ecto-entads outward, first composition plane on the said eccentric block is aspectant mutually, and second composition plane of above-mentioned eccentric block also faces one another face.The plane that first, second composition plane on each eccentric block is arranged to cross one another.The cross one another angle in said each plane is about 15 ° to 30 °.The cross one another angle the best in each plane is about 22 °.Said shoulder is interval with thrust washer.Said each eccentric block has given gauge, and eccentric block occupies an axial length on described axle, and this axial length is not more than gauge.Have the relative keyway in position on a said eccentric block and the said axle, connecting key is arranged in the keyway.Said two eccentric blocks can be identical eccentric blocks.The keyway of an opening facing to axle arranged on said each eccentric block, a keyway is also arranged on this axle, and a key that axle is connected with an eccentric block is housed in relative keyway.
The utility model structure is very simple, and manufacturing expense is low, is convenient to install change.
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is 2-2 profiles of Fig. 1.
Accompanying drawing 3 is 3-3 profiles of Fig. 1.
Further describe the utility model below in conjunction with drawings and Examples.
As shown in the figure, device 10 of the present utility model is made up of eccentric block 12 and the 12a a pair of with holes that are contained in the rotating shaft 14.Have on each eccentric block two from outside the plane 16 of placing on the relative eccentric block be called " A face ", plane 18 is called " B face ", the actual angle between A face and the B face is 15 ° to 30 °, in the device shown in this figure, the angle of this arc is 22 °.Eccentric block 12 and 12a have recessed shoulder 20 and 20a respectively, separate with thrust washer 22 between the two, and internal diameter 26 that cooperates with axle on eccentric block 12 and 12a and 26a place also have keyway 24 and 24a.Outer radius at axle 14 has corresponding keyway 24b; In keyway 24b and relative keyway 24a, key 28 is housed.Take to force the rotation together of eccentric block 12a and axle 14 after this measure.
The external diameter of the straight diameter ratio shaft 14 of endoporus 26 and 26a is more bigger.Therefore, eccentric block 12 can freely rotate on axle.
The outer face of eccentric block 12 contacts with second thrust washer 22a, and by circlip 30 location that are contained in axle 14 grooves, guarantees eccentric block 12, the position of 12a (and thrust washer 22 and 22a) on axle 14.
In when work, there is the eccentric block 12a of key to limit the slewing area of another movable eccentric block 12.In order to reach peak swing, be by counterclockwise driving power shaft 14 (seeing) by direction shown in Figure 1.Axle 14 drives the eccentric block 12a that keyway is arranged by key 28, then 18 another eccentric blocks 12 of drive through the composition surface.Two eccentric blocks are drawn close eccentric center of gravity separately together, and therefore rotation together just obtains maximum working amplitude.
In order to reach minimum amplitude, axle 14 will rotate by rightabout (clockwise direction).At this moment forward the position of composition surface 16 applyings that make on its composition surface 16 and another eccentric block 12 to the eccentric block 12a of key.Driving the latter then rotates.Minimum amplitude depends on two angles between the eccentric block center of gravity, and therefore the free movable angle of control just can be determined minimum amplitude.In this embodiment, installing 10 selected arc angles is 44 °, can produce half big or small amplitude of peak swing.
Adopt the eccentric block 12 and this feature of 12a of pairing mutually to have a plurality of advantages.Manufacturing cost be can reduce, large contact surface 16 and 18 and replace bending force added by compression stress.
Claims (9)
1, the amplitude variable eccentric, comprise first and second eccentric blocks, an axle that is through in above-mentioned two eccentric blocks, it is characterized by a recessed shoulder is arranged in above-mentioned each eccentric block, described shoulder faces one another also being nested in together on the column position of face, wherein an eccentric block and above-mentioned axle are bonded together them by the plug-in unit that is inserted between the two, eccentric block can rotate together with axle, and another eccentric block can freely rotate with respect to above-mentioned axle, each eccentric block all has the hole that cooperates with axle, its aperture is slightly larger than the external diameter of axle, the slip that above-mentioned hole is can be on the external diameter of axle relative.
2, by the described amplitude variable eccentric of claim 1, it is characterized by said each eccentric block and have the first and second two radial engagement planes of placing two relative place's ecto-entads outward, first composition plane on the said eccentric block is aspectant mutually, and second composition plane of above-mentioned eccentric block also is aspectant mutually.
3, by the described amplitude variable eccentric of claim 2, it is characterized by the plane that first, second composition plane on said each eccentric block is arranged to cross one another.
4, by the described amplitude variable eccentric of claim 3, it is characterized by the cross one another angle in said each plane and be about 15 ° to 30 °.
5, by the described amplitude variable eccentric of claim 3, be characterized as the cross one another angle in each plane and be about 22 °.
6, by the described amplitude variable eccentric of claim 1, it is characterized by between said shoulder and be provided with thrust washer.
7, by the described amplitude variable eccentric of claim 1, it is characterized by on a said eccentric block and the said axle and have the relative keyway in position, connecting key is arranged in the keyway.
8, by the described amplitude variable eccentric of claim 1, it is characterized by described two eccentric blocks is identical eccentric blocks.
9, by the described amplitude variable eccentric of claim 1, it is characterized by has the keyway of an opening facing to axle on said every eccentric block, a keyway is also arranged on this axle, and a key that axle is connected with an eccentric block is housed in relative keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266305 CN2471434Y (en) | 2000-12-31 | 2000-12-31 | Eccentric device with changable amplitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266305 CN2471434Y (en) | 2000-12-31 | 2000-12-31 | Eccentric device with changable amplitude |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471434Y true CN2471434Y (en) | 2002-01-16 |
Family
ID=33620427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266305 Expired - Fee Related CN2471434Y (en) | 2000-12-31 | 2000-12-31 | Eccentric device with changable amplitude |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471434Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588307A (en) * | 2015-01-09 | 2015-05-06 | 上海大学 | Circumference oscillating mechanism with scale display and adjustable amplitude |
| CN113324716A (en) * | 2020-02-28 | 2021-08-31 | 天津益普科技发展有限公司 | Inertia type vibration exciter of full-size pipeline resonance fatigue testing machine |
-
2000
- 2000-12-31 CN CN 00266305 patent/CN2471434Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588307A (en) * | 2015-01-09 | 2015-05-06 | 上海大学 | Circumference oscillating mechanism with scale display and adjustable amplitude |
| CN104588307B (en) * | 2015-01-09 | 2017-02-22 | 上海大学 | Circumference oscillating mechanism with adjustable amplitude |
| CN113324716A (en) * | 2020-02-28 | 2021-08-31 | 天津益普科技发展有限公司 | Inertia type vibration exciter of full-size pipeline resonance fatigue testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: VOLVO CONSTRUCTION EQUIPMENT (CHINA) LTD. Free format text: FORMER OWNER: ENGSORAN (WUXI) ROAD CONSTRUCTION MACHINERY CO., LTD. Effective date: 20071109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071109 Address after: 201206 Shanghai Jingqiao Export Processing Zone gold Beijing Road No. 2045 Patentee after: VOLVO CONSTRUCTION EQUIPMENT (CHINA) CO., LTD. Address before: 214101 No. 7 South Road, Xishan Economic Development Zone, Jiangsu, China Patentee before: Yinggesuolan (Wuxi) Road Machinery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020116 Termination date: 20100201 |