CN103836059A - Eccentric shaft with balanced type shaft sleeve - Google Patents
Eccentric shaft with balanced type shaft sleeve Download PDFInfo
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- CN103836059A CN103836059A CN201210515830.9A CN201210515830A CN103836059A CN 103836059 A CN103836059 A CN 103836059A CN 201210515830 A CN201210515830 A CN 201210515830A CN 103836059 A CN103836059 A CN 103836059A
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Abstract
The invention discloses an eccentric shaft with a balanced type shaft sleeve. The eccentric shaft comprises an eccentric shaft body, wherein a transition part is formed between an eccentric bearing part and a concentric bearing part of the eccentric shaft; the transition part is sleeved with an eccentric sleeve; an eccentric center line of the eccentric sleeve is opposite to an eccentric center line of the eccentric shaft; an eccentric torque of the eccentric sleeve is equal to that of the eccentric shaft. The eccentric shaft can attain self-balance through the external eccentric sleeve, so that a flywheel balancing block is omitted, thus the dual-power consumption factor is eliminated and the work efficiency for a crusher is improved.
Description
Technical field
The present invention relates to eccentric shaft technical field, more specifically say a kind of axle sleeve balanced type eccentric shaft.
Background technique
Jaw crusher, is commonly called as jaw broken, is one of with the longest history, most popular disintegrating apparatus.Eccentric shaft is most crucial parts in the broken equipment of jaw, and the jaw in the broken crushing pair of jaw comes from the bias design of eccentric shaft in the time of broken material once the fragmentation campaign of a tight pine.
Prior art eccentric shaft has two center lines: 1. rotation centerline, the i.e. center line at the place, axle center of concentric bearings shelves, locking shelves and benchmark shelves; 2. eccentric center line, i.e. capacity eccentric bearing shelves and the center line at place, axle center that is connected shelves.The work done mechanism of eccentric shaft is: when motor after vee belt is connected with the flywheel on benchmark shelves, drive eccentric shaft take rotation centerline when axle center rotates, capacity eccentric bearing shelves drive cover moving jaw thereon to do a tight pine motion to carry out broken work done.
The bias design of eccentric shaft, in meeting the broken broken work done of jaw, also brings " rotation eccentric moment of inertia ", produces eccentric vibrating, and eccentric vibrating is very harmful to the normal operation of machinery, totally unfavorable to disintegrator.
In order to overcome above-mentioned defect, prior art jaw is broken, and by setting up a pair of flywheel, (wherein one is provided with v belt groove, have power transmission function concurrently, claim again sheave), and the eccentric moment of inertia that an equilibrium block carrys out balance eccentric shaft (orientation, equilibrium block place on flywheel is contrary with the bias on eccentric shaft, and eccentric moment equates) is set on flywheel.
The method that above-mentioned prior art solves eccentric vibrating has the following disadvantages: 1. need to increase flywheel and the eccentric balancing blocks of a pair of heaviness, Shi Epo mechanism is complicated, increases manufacture cost and operation wasted work; 2. in the broken device fabrication of jaw, be difficult to detect the levels of precision (eccentric mass short weight or exceed and eccentric orientation has error all can produce eccentric vibrating) of its moment of inertia balance, detect therefore all do not make balance when the broken product export of general jaw.Therefore, prior art jaw is broken in use, and eccentric vibrating can make related components produce fatigue damage, reduces its working life, and the bolt that wherein connects disintegrator and stand easily ruptures, and changes frequent; Eccentric moment of inertia increases wasted work and produces noise because of vibration.
Summary of the invention
The object of the invention is to overcome the above-mentioned defect of prior art, the axle sleeve balanced type eccentric shaft of high, the easy detection of a kind of balance quality, easy to control, designs simplification, reduction device fabrication and operating cost is provided.
In order to reach above object, the present invention is achieved by the following technical solutions: a kind of axle sleeve balanced type eccentric shaft, comprise eccentric shaft, and it is characterized in that, between the capacity eccentric bearing shelves of eccentric shaft and concentric bearings shelves, set up one section of transition shelves,
On described transition shelves, be arranged with eccentric bushing, the eccentric center line of described eccentric bushing is positioned at the offside of the eccentric center line of described eccentric shaft, and the eccentric moment of described eccentric bushing equates with the eccentric moment of described eccentric shaft.
Intention thinking: eccentric shaft of the present invention reaches homeostasis by external eccentric bushing, the eccentric center line of eccentric bushing is positioned at the offside of the eccentric center line of eccentric shaft, and the eccentric moment of eccentric bushing equates with the eccentric moment of eccentric shaft.
Note: eccentric center line and eccentric moment are here all for rotation centerline.
Of the present invention two large main structure features are: the eccentric center line of (1) eccentric bushing is positioned at the offside of the eccentric center line of eccentric shaft, and the eccentric moment of (2) eccentric bushing equates with the eccentric moment of eccentric shaft.
Core technology of the present invention: according to eccentric shaft equilibrium principle, eccentric shaft arranges external excentric sleeve by two ends and reaches homeostasis.
Realization mechanism of the present invention is: the eccentric center line of (1) eccentric bushing is positioned at the offside of the center line of eccentric shaft, and the eccentric moment of (2) eccentric bushing equates with the eccentric moment of eccentric shaft.
Remarkable function of the present invention is: eccentric shaft of the present invention reaches homeostasis by external eccentric bushing, has removed flywheel balancing piece from, has eliminated dual work done factor, has improved the working efficiency of disintegrator.
Except above significantly function, the present invention also has following beneficial effect:
(1) simplified structure.Remove flywheel balancing piece from, reduce device fabrication cost, and then save operating cost.
(2) economize merit.If the design of the bias of eccentric shaft has produced the eccentric moment of inertia of capacity eccentric bearing shelves, wasted work is necessary cost, is a kind of waste so by connecting grade eccentric moment of inertia wasted work producing; On flywheel, set up again eccentric balancing blocks and carry out balance with it, increased again a new work done factor.Eccentric shaft of the present invention reaches homeostasis by external eccentric bushing, has removed flywheel balancing piece from, has eliminated dual work done factor, has improved the working efficiency of disintegrator.
(3) the vibration balancing precision of raising disintegrator.Prior art eccentric shaft adopts and sets up a pair of flywheel by the method for external balance, in manufacture and assembly process, be difficult to realize the accurate balance of eccentric moment of inertia, also be difficult to detection enforcement fine setting by whole set equipment, so the disintegrator in reality can not be eliminated completely because of the eccentric vibrating disadvantage that the eccentric Design and manufacture of eccentric shaft brings, some product even seriously exists.
As preferably, in the time that the rotation centerline of described transition shelves is positioned on the rotation centerline of described concentric bearings shelves,
The eccentric center line of described eccentric bushing is positioned at the offside of the eccentric center line of described capacity eccentric bearing shelves, and the eccentric moment of described eccentric bushing equates with the eccentric moment of described capacity eccentric bearing shelves.
In the time that the rotation centerline of described transition shelves is positioned on the rotation centerline of described concentric bearings shelves, the eccentric moment (for rotation centerline) of described transition shelves is 0, can not consider in equilibrium conditions the inside.
As the alternative of such scheme, in the time that the rotation centerline of described transition shelves is not on the rotation centerline of described concentric bearings shelves,
The eccentric center line of described eccentric bushing is positioned at the offside of the eccentric center line of described capacity eccentric bearing shelves, and the eccentric moment of described eccentric bushing equates with the eccentric moment of described capacity eccentric bearing shelves with the eccentric moment sum of described transition shelves.
In the time that the rotation centerline of described transition shelves is not on the rotation centerline of described concentric bearings shelves, the eccentric moment (for rotation centerline) of described transition shelves is not 0, must consider in equilibrium conditions the inside.Here have two kinds of situations, the eccentric moment of (1) described transition shelves is in the time of the homonymy of described capacity eccentric bearing shelves, and it is negative value; (2) eccentric moment of described transition shelves is in the time of the heteropleural of described capacity eccentric bearing shelves, it be on the occasion of.But, not the eccentric moment of tube transitions shelves be whether on the occasion of, it all needs to meet the eccentric moment of described eccentric bushing and the eccentric moment sum of described transition shelves equates with the eccentric moment of described capacity eccentric bearing shelves.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is another kind of structural representation of the present invention.
In figure: 1-eccentric shaft, 2-capacity eccentric bearing shelves, 3-concentric bearings shelves, 4-transition shelves, 5-eccentric bushing.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1: as shown in Figure 1, a kind of axle sleeve balanced type eccentric shaft, comprises eccentric shaft 1, between the capacity eccentric bearing shelves 2 of eccentric shaft 1 and concentric bearings shelves 3, sets up one section of transition shelves 4, and the rotation centerline of transition shelves 4 is positioned on the rotation centerline of concentric bearings shelves 3;
Sheathed eccentric bushing 5 on transition shelves 4, the eccentric center line of eccentric bushing 5 is positioned at the offside of the eccentric center line of capacity eccentric bearing shelves 2, and the eccentric moment of eccentric bushing 5 equates with the eccentric moment of capacity eccentric bearing shelves 2.
Embodiment 2: as shown in Figure 2, a kind of axle sleeve balanced type eccentric shaft, comprises eccentric shaft 1, between the capacity eccentric bearing shelves 2 of eccentric shaft 1 and concentric bearings shelves 3, set up one section of transition shelves 4, and the rotation centerline of transition shelves 4 is not on the rotation centerline of concentric bearings shelves 3;
Sheathed eccentric bushing 5 on transition shelves 4, the eccentric center line of eccentric bushing 5 is positioned at the offside of the eccentric center line of capacity eccentric bearing shelves 2, and the eccentric moment of eccentric bushing 5 equates with the eccentric moment of capacity eccentric bearing shelves 2 with the eccentric moment sum of transition shelves 4.
The embodiment of the above is only the present invention's preferred embodiment, not limits practical range of the present invention with this, therefore the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (3)
1. an axle sleeve balanced type eccentric shaft, comprises eccentric shaft, it is characterized in that, between the capacity eccentric bearing shelves of eccentric shaft and concentric bearings shelves, sets up one section of transition shelves,
On described transition shelves, be arranged with eccentric bushing, the eccentric center line of described eccentric bushing is positioned at the offside of the eccentric center line of described eccentric shaft, and the eccentric moment of described eccentric bushing equates with the eccentric moment of described eccentric shaft.
2. axle sleeve balanced type eccentric shaft according to claim 1, is characterized in that, in the time that the rotation centerline of described transition shelves is positioned on the rotation centerline of described concentric bearings shelves,
The eccentric center line of described eccentric bushing is positioned at the offside of the eccentric center line of described capacity eccentric bearing shelves, and the eccentric moment of described eccentric bushing equates with the eccentric moment of described capacity eccentric bearing shelves.
3. axle sleeve balanced type eccentric shaft according to claim 1, is characterized in that, in the time that the rotation centerline of described transition shelves is not on the rotation centerline of described concentric bearings shelves,
The eccentric center line of described eccentric bushing is positioned at the offside of the eccentric center line of described capacity eccentric bearing shelves, and the eccentric moment of described eccentric bushing equates with the eccentric moment of described capacity eccentric bearing shelves with the eccentric moment sum of described transition shelves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210515830.9A CN103836059A (en) | 2012-11-27 | 2012-11-27 | Eccentric shaft with balanced type shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210515830.9A CN103836059A (en) | 2012-11-27 | 2012-11-27 | Eccentric shaft with balanced type shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103836059A true CN103836059A (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210515830.9A Pending CN103836059A (en) | 2012-11-27 | 2012-11-27 | Eccentric shaft with balanced type shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836059A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533795A (en) * | 2014-12-24 | 2015-04-22 | 珠海凌达压缩机有限公司 | Refrigeration equipment and compressor thereof |
| CN109141852A (en) * | 2018-08-17 | 2019-01-04 | 大连理工大学 | It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896553A1 (en) * | 2006-01-26 | 2007-07-27 | Vianney Rabhi | Crankshaft for e.g. internal combustion engine, has hydrodynamic bearings that are lubricated by pressurized oil brought by orifices, and does not comprise balance weight, where each hydrodynamic bearing has smooth cylindrical surface |
| CN101200041A (en) * | 2006-12-11 | 2008-06-18 | 上海建设路桥机械设备有限公司 | Multiple eccentric shaft processing method and using counterbalance and eccentric sleeve |
| CN201350691Y (en) * | 2009-02-14 | 2009-11-25 | 宁波米斯克精密机械工程技术有限公司 | Dynamic balancing device for punch |
| CN202052568U (en) * | 2011-03-21 | 2011-11-30 | 白银有色集团股份有限公司 | Moving jaw eccentric shaft assembly of simple swing type jaw crusher |
| CN202108861U (en) * | 2011-03-19 | 2012-01-11 | 武勇 | Adjustable eccentric shaft structure with high precision |
| CN202468684U (en) * | 2012-03-12 | 2012-10-03 | 义乌市黑白矿山机械有限公司 | Self balancing eccentric shaft |
| CN202484192U (en) * | 2012-03-12 | 2012-10-10 | 义乌市黑白矿山机械有限公司 | Double-shaft self-balancing movement mechanism for jaw crusher |
-
2012
- 2012-11-27 CN CN201210515830.9A patent/CN103836059A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896553A1 (en) * | 2006-01-26 | 2007-07-27 | Vianney Rabhi | Crankshaft for e.g. internal combustion engine, has hydrodynamic bearings that are lubricated by pressurized oil brought by orifices, and does not comprise balance weight, where each hydrodynamic bearing has smooth cylindrical surface |
| CN101200041A (en) * | 2006-12-11 | 2008-06-18 | 上海建设路桥机械设备有限公司 | Multiple eccentric shaft processing method and using counterbalance and eccentric sleeve |
| CN201350691Y (en) * | 2009-02-14 | 2009-11-25 | 宁波米斯克精密机械工程技术有限公司 | Dynamic balancing device for punch |
| CN202108861U (en) * | 2011-03-19 | 2012-01-11 | 武勇 | Adjustable eccentric shaft structure with high precision |
| CN202052568U (en) * | 2011-03-21 | 2011-11-30 | 白银有色集团股份有限公司 | Moving jaw eccentric shaft assembly of simple swing type jaw crusher |
| CN202468684U (en) * | 2012-03-12 | 2012-10-03 | 义乌市黑白矿山机械有限公司 | Self balancing eccentric shaft |
| CN202484192U (en) * | 2012-03-12 | 2012-10-10 | 义乌市黑白矿山机械有限公司 | Double-shaft self-balancing movement mechanism for jaw crusher |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533795A (en) * | 2014-12-24 | 2015-04-22 | 珠海凌达压缩机有限公司 | Refrigeration equipment and compressor thereof |
| CN109141852A (en) * | 2018-08-17 | 2019-01-04 | 大连理工大学 | It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt |
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Application publication date: 20140604 |
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