CN103307088A - Self-balancing vernier device of eccentric shaft - Google Patents
Self-balancing vernier device of eccentric shaft Download PDFInfo
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- CN103307088A CN103307088A CN2012100729544A CN201210072954A CN103307088A CN 103307088 A CN103307088 A CN 103307088A CN 2012100729544 A CN2012100729544 A CN 2012100729544A CN 201210072954 A CN201210072954 A CN 201210072954A CN 103307088 A CN103307088 A CN 103307088A
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- screw
- eccentric shaft
- eccentric
- shelves
- balancing
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Abstract
The invention discloses a self-balancing vernier device of an eccentric shaft. The middle part of the eccentric shaft is provided with a screw hole running through the eccentric shaft, and the central line of the screw hole is positioned on a plane of the eccentric central line of the eccentric shaft and the rotary central line of the eccentric shaft. The invention provides a self-balancing vernier device and a vernier means which are high in balancing accuracy, are easy to detect and control, are simplified in structure, and lower the device manufacturing and running cost for a jaw crushing eccentric shaft, so that the jaw crushing eccentric shaft operates in balance so as to improve the production efficiency and prolong the service life of the device, and reduce vibration and noise.
Description
Technical field
The present invention relates to the jaw crusher technical field, more specifically say a kind of self balancing vernier device of 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 off-centre design (such as Fig. 1) of eccentric shaft once the fragmentation campaign of a tight pine when broken material.When motor through the vee belt when driving eccentric shaft after flywheel on the benchmark shelves links to each other and do rotation take rotation centerline as the axle center, the capacity eccentric bearing shelves then drive cover moving jaw thereon and do a tight pine and move and carry out broken work done.
The off-centre design of eccentric shaft also brings " rotation eccentric moment of inertia " when satisfying the broken broken work done function of jaw, produce eccentric vibrating, and eccentric vibrating is very harmful to the normal operation of machinery, and is totally unfavorable to disintegrator.In order to overcome defects, the prior art jaw is broken, and (wherein one is provided with the v belt groove by setting up a pair of flywheel, have the power transmission function concurrently, claim again sheave), and at flywheel the eccentric moment of inertia that one equilibrium block comes the balance eccentric shaft (eccentric opposite on the orientation, equilibrium block place on the flywheel and the eccentric shaft, and eccentric moment equates) is set.
The method that above-mentioned prior art solves eccentric vibrating still has the following disadvantages: in the broken device fabrication of jaw, installation process, have unavoidably error, these errors directly affect the accuracy (eccentric mass short weight or surpass and eccentric orientation has error all can produce eccentric vibrating) of moment of inertia balance.Therefore, the prior art jaw is broken in use, and eccentric vibrating can make related components produce fatigue damage, reduces its working life, and the screw that wherein connects disintegrator and stand easily ruptures, and changes frequent; Eccentric moment of inertia has then increased wasted work and has produced noise because of vibration.
The applicant has designed a kind of self balancing eccentric shaft, realize eccentric moment of inertia self balancing although connect axle center and the capacity eccentric bearing gear shaft heart reverse design of shelves by eccentric shaft, greatly improve disintegrator traveling comfort and Economy, but had equally the existence of foozle and alignment error and balance is not thorough.So, a cover self balancing vernier device design must be arranged, could deal with problems at all.
Summary of the invention
The object of the invention is to overcome the defects of prior art, the self balancing vernier device of the 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 purpose, the present invention is achieved by the following technical solutions: a kind of self balancing vernier device of eccentric shaft, it is characterized in that, be provided with the in-line screw that runs through it at the middle part of eccentric shaft, and the center line of described screw is positioned on the plane at the two place of rotation centerline of the eccentric center line of eccentric shaft and eccentric shaft;
Be provided with in the described screw and its adjusting screw with screw-thread fit.
Structure characteristic of the present invention is: connect shelves run through in-line screw and supporting setting are set can slippage and the adjusting screw of adjustment.
Core technology of the present invention is: run through that at the connection shelves of eccentric shaft the adjusting screw that screw and supporting setting can slippages being set, by regulating the position of adjusting screw in screw, utilize the quality of adjusting screw to finely tune eccentric moment of inertia, namely adopt reverse eccentric moment of inertia equilibrium principle, realizing the eccentric shaft homeostasis, is core technology of the present invention.
Beneficial effect: in eccentric shaft manufacturing process, more or less can there be some errors in the processing dimension of the parallelism of rotation centerline and eccentric center line, the degree of eccentricity and each grade of eccentric shaft, and these errors can affect the balance quality of eccentric moment of inertia.Therefore the present invention has designed as above in-line through hole micro-adjusting mechanism, and a pair of eccentric moment fine adjustment screw in the fine setting screw can the mobile position, by its displacement, the centroidal moment of adjusting screw is adjusted to reach the exact position of eccentric moment balance.
As preferably, also be provided with the retaining screw that matches with adjusting screw in the described screw.
Fine adjustment screw also comprises the retaining screw, and in the rotation of eccentric shaft, dull joint screw easily occurs loosening, thereby loses the balance of original adjusting, and the eccentric moment fine adjustment screw is designed to a pair of composite structure, has the interlocking stopping function.
As the alternative of such scheme, a kind of self balancing vernier device of eccentric shaft is characterized in that, is provided with the cross screw that runs through it at the middle part of eccentric shaft, and described cross screw comprises two mutual vertical but disjoint screws;
Be provided with in the described screw and its adjusting screw with screw-thread fit.
Make in the course of working at eccentric shaft, except above-mentioned error, also can produce error in the Vertical direction on its plane.Therefore, the present invention has designed again cross through hole micro-adjusting mechanism.Can in the exact position of 360 ℃ of comprehensive fine setting barycenter distances, make the balance of eccentric moment of inertia more accurate like this.
As preferably, described screw all radially runs through its center, and the screw direction of described screw is all perpendicular with the eccentric center line of eccentric shaft.
Preferred radial direction is more easily regulated.
As preferably, wherein the center line of a described screw is positioned on the plane at the two place of rotation centerline of the eccentric center line of eccentric shaft and eccentric shaft.
Preferred this plane also is convenient to regulate.
As preferably, also be provided with the retaining screw that matches with adjusting screw in the described screw.
Fine adjustment screw also comprises the retaining screw, and in the rotation of eccentric shaft, dull joint screw easily occurs loosening, thereby loses the balance of original adjusting, and the eccentric moment fine adjustment screw is designed to a pair of composite structure, has the interlocking stopping function.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the structure sectional view of A-A among Fig. 1;
Fig. 3 is another kind of structural representation of the present invention;
Fig. 4 is the structure sectional view of B-B among Fig. 3;
Fig. 5 is the structural representation of moment fine adjustment screw of the present invention.
Among the figure: 1-benchmark shelves, 2-are locked shelves, and 3-concentric bearings shelves, 4-capacity eccentric bearing shelves, 5-connect shelves, 6-screw, 7-adjusting screw, 8-retaining screw.
Embodiment
Below in conjunction with specific embodiment the present invention is further detailed.
Embodiment 1: as depicted in figs. 1 and 2, a kind of self balancing vernier device of eccentric shaft, this eccentric shaft by from the inside to surface successively the symmetrical capacity eccentric bearing shelves 4, concentric bearings shelves 3, locking shelves 2 and the benchmark shelves 1 that connect shelves 5 both sides of being connected to jointly form, the axle center of the concentric bearings shelves 3 of both sides, locking shelves 2 and benchmark shelves 1 is positioned at the rotation centerline O of eccentric shaft
1-O
1On, capacity eccentric bearing shelves 4 axle center of both sides are positioned at the eccentric center line O of eccentric shaft
2-O
2On.
As shown in Figure 5, connect on the shelves 5 and be provided with the in-line screw 6 that runs through it, the center line of screw 6 is positioned on the plane at the two place of rotation centerline of the eccentric center line of capacity eccentric bearing shelves 4 and concentric bearings shelves 3; Be provided with in the screw 6 and its a pair of moment fine adjustment screw with screw-thread fit, this to the moment fine adjustment screw comprise two cooperatively interact one in front and one in back abut against together adjusting screw 7 and retaining screw 8.
Embodiment 2: as shown in Figure 3 and Figure 4, connect on the shelves 5 and be provided with the cross screw that runs through it, the cross screw comprises two mutual vertical but disjoint screws 6; Be provided with in the screw 6 and its a pair of moment fine adjustment screw with screw-thread fit.This to the moment fine adjustment screw comprise two cooperatively interact one in front and one in back abut against together adjusting screw 7 and retaining screw 8.
Screw 6 all radially runs through the center that connects shelves, and the screw direction of screw 6 is all perpendicular with the eccentric center line of capacity eccentric bearing shelves 4.Wherein the center line of a screw 6 is positioned on the plane at the two place of rotation centerline of the eccentric center line of capacity eccentric bearing shelves 4 and concentric bearings shelves 3.
All the other are with embodiment 1.
Practical: in above-mentioned adjustment process, so that connect the eccentric offside that the center of mass point N of shelves 5 is positioned at capacity eccentric bearing shelves 4, the shaft axis that namely connects shelves 5 is positioned at capacity eccentric bearing shelves 4 with respect to rotation centerline O
1-O
1Eccentric offside, thereby the eccentric moment that to connect shelves 5 equates but opposite direction with the eccentric moment of capacity eccentric bearing shelves 4.
Claims (6)
1. the self balancing vernier device of an eccentric shaft is characterized in that, is provided with the in-line screw that runs through it at the middle part of eccentric shaft, and the center line of described screw is positioned on the plane at the two place of rotation centerline of the eccentric center line of eccentric shaft and eccentric shaft;
Be provided with in the described screw and its adjusting screw with screw-thread fit.
2. the self balancing vernier device of eccentric shaft according to claim 1 is characterized in that, also is provided with the retaining screw that matches with adjusting screw in the described screw.
3. the self balancing vernier device of an eccentric shaft is characterized in that, is provided with the cross screw that runs through it at the middle part of eccentric shaft, and described cross screw comprises two mutual vertical but disjoint screws;
Be provided with in the described screw and its adjusting screw with screw-thread fit.
4. the self balancing vernier device of eccentric shaft according to claim 3 is characterized in that, described screw all radially runs through its center, and the screw direction of described screw is all perpendicular with the eccentric center line of eccentric shaft.
5. the self balancing vernier device of eccentric shaft according to claim 4 is characterized in that, wherein the center line of a described screw is positioned on the plane at the two place of rotation centerline of the eccentric center line of eccentric shaft and eccentric shaft.
6. according to claim 3 or the self balancing vernier device of 4 or 5 described eccentric shafts, it is characterized in that, also be provided with the retaining screw that matches with adjusting screw in the described screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100729544A CN103307088A (en) | 2012-03-12 | 2012-03-12 | Self-balancing vernier device of eccentric shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100729544A CN103307088A (en) | 2012-03-12 | 2012-03-12 | Self-balancing vernier device of eccentric shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103307088A true CN103307088A (en) | 2013-09-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100729544A Pending CN103307088A (en) | 2012-03-12 | 2012-03-12 | Self-balancing vernier device of eccentric shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103307088A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB935892A (en) * | 1961-06-12 | 1963-09-04 | Ernst Kuhme | Improvements in or relating to jaw crushers |
| CN1982742A (en) * | 2005-12-13 | 2007-06-20 | 王榕生 | Dynamic balance driving mechanism with small tooth-differential planetary transmission |
| CN101049675A (en) * | 2007-05-11 | 2007-10-10 | 常州宝菱重工机械有限公司 | Eccentric shaft with adjustable eccentricity |
| CN201090662Y (en) * | 2007-09-21 | 2008-07-23 | 盈锡精密工业股份有限公司 | Principal axis balance screw cap |
| CN201760303U (en) * | 2010-09-04 | 2011-03-16 | 湖北枝江峡江矿山机械有限责任公司 | V-shaped breaking cavity jaw breaker |
| CN202468680U (en) * | 2012-03-12 | 2012-10-03 | 义乌市黑白矿山机械有限公司 | Self-balancing fine adjusting device for eccentric shaft |
-
2012
- 2012-03-12 CN CN2012100729544A patent/CN103307088A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB935892A (en) * | 1961-06-12 | 1963-09-04 | Ernst Kuhme | Improvements in or relating to jaw crushers |
| CN1982742A (en) * | 2005-12-13 | 2007-06-20 | 王榕生 | Dynamic balance driving mechanism with small tooth-differential planetary transmission |
| CN101049675A (en) * | 2007-05-11 | 2007-10-10 | 常州宝菱重工机械有限公司 | Eccentric shaft with adjustable eccentricity |
| CN201090662Y (en) * | 2007-09-21 | 2008-07-23 | 盈锡精密工业股份有限公司 | Principal axis balance screw cap |
| CN201760303U (en) * | 2010-09-04 | 2011-03-16 | 湖北枝江峡江矿山机械有限责任公司 | V-shaped breaking cavity jaw breaker |
| CN202468680U (en) * | 2012-03-12 | 2012-10-03 | 义乌市黑白矿山机械有限公司 | Self-balancing fine adjusting device for eccentric shaft |
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Application publication date: 20130918 |
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| WD01 | Invention patent application deemed withdrawn after publication |