CN202468680U - Self-balancing fine adjusting device for eccentric shaft - Google Patents
Self-balancing fine adjusting device for eccentric shaft Download PDFInfo
- Publication number
- CN202468680U CN202468680U CN 201220108319 CN201220108319U CN202468680U CN 202468680 U CN202468680 U CN 202468680U CN 201220108319 CN201220108319 CN 201220108319 CN 201220108319 U CN201220108319 U CN 201220108319U CN 202468680 U CN202468680 U CN 202468680U
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- screw
- eccentric shaft
- eccentric
- self
- shelves
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Abstract
The utility model discloses a self-balancing fine adjusting device for an eccentric shaft. A screw hole penetrating the eccentric shaft is arranged in the middle of the eccentric shaft, and the central line of the screw hole is positioned in the plane in which the eccentric central line and the rotating central line of the eccentric shaft are positioned. The utility model provides the self-balancing fine adjusting device and a fine adjusting measure for the eccentric shaft of a jaw crusher on realizing eccentric moment balance. According to the self-adjusting fine adjustment and the fine adjusting measure, the balance accuracy is high, the detection control is easy, the structure is simplified, and the manufacturing cost and the operating cost on equipment are reduced. The jaw crushing equipment is ensured to operate in a balanced mode, so that the production efficiency and the service life of equipment are increased, and the vibration and noise are reduced.
Description
Technical field
The utility model relates to the jaw crusher technical field, the self balancing vernier device of a kind of eccentric shaft of more specifically saying so.
Background technique
Jaw crusher, it is broken to be commonly called as jaw, 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 broken pair of jaw designs (like Fig. 1) once the off-centre that the fragmentation campaign of a tight pine comes from eccentric shaft when broken material.When motor is axle center when doing rotation through the vee belt with the rotation centerline with driving eccentric shaft after flywheel on the benchmark shelves links to each other, the capacity eccentric bearing shelves then drive cover moving jaw on it and do a tight pine motion 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 vibration, and eccentric vibration is very harmful to the normal operation of machinery, and is totally unfavorable to disintegrator.In order to overcome above-mentioned defective; The existing technology jaw is broken, and (wherein one is provided with the v belt groove through setting up a pair of flywheel; Have the power transmission function concurrently; Claim sheave again), and the eccentric moment of inertia (the equilibrium block orientation, place on the flywheel is opposite with the off-centre on the eccentric shaft, and eccentric moment equates) that an equilibrium block comes the balance eccentric shaft is being set on the flywheel.
Still there is following deficiency in the method that above-mentioned existing technology solves eccentric vibration: in the broken device fabrication of jaw, installation process; Have error unavoidably, these errors directly influence the accuracy (eccentric mass short weight or surpass and eccentric orientation has error all can produce eccentric vibration) of moment of inertia balance.Therefore, the existing technology jaw is broken in use, and eccentric vibration can make related components produce fatigue damage, reduces its working life, and the screw that wherein connects disintegrator and stand ruptures easily, 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 though connect the axle center and the capacity eccentric bearing gear shaft heart reverse design of shelves through eccentric shaft; Greatly improve disintegrator traveling comfort and Economy, but had the existence of foozle and alignment error equally and balance is not thorough.So, a cover self balancing vernier device design must be arranged, could deal with problems at all.
The model utility content
The purpose of the utility model is to overcome the above-mentioned defective of existing technology, provide a kind of balance quality high, be prone to detect, the self balancing vernier device of the eccentric shaft of easy to control, designs simplification, reduction device fabrication and operating cost.
In order to reach above purpose; The utility model is realized through following technological scheme: 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 said screw is positioned on the plane at the two place of rotation centerline of eccentric center line and eccentric shaft of eccentric shaft;
Be provided with in the said screw and its adjusting screw with screw-thread fit.
The structure characteristic of the utility model is: connect run through on the shelves in-line screw and supporting setting are set can slippage and the adjusting screw of adjustment.
The core technology of the utility model is: run through that on the connection shelves of eccentric shaft the adjusting screw that screw and supporting setting can slippages being set; Through regulating the position of adjusting screw in screw; Utilize the quality of adjusting screw to finely tune eccentric moment of inertia; Promptly adopting reverse eccentric moment of inertia equilibrium principle, realize the eccentric shaft homeostasis, is the core technology of the utility model.
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 influence the balance quality of eccentric moment of inertia.Therefore the utility model 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, through 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 stopping screw that matches with adjusting screw in the said screw.
Fine adjustment screw also comprises the stopping screw, and in the rotation of eccentric shaft, dull joint screw takes place loosening easily, 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 said cross screw comprises two mutual vertical but disjoint screws;
Be provided with in the said screw and its adjusting screw with screw-thread fit.
Make in the course of working at eccentric shaft, except that above-mentioned error, also can on the Vertical direction on its plane, produce error.Therefore, the utility model has designed cross through hole micro-adjusting mechanism again.Can make the balance of eccentric moment of inertia more accurate in the exact position of 360 ° of comprehensive fine setting barycenter distances like this.
As preferably, said screw all radially runs through its center, and the screw direction of said screw is all perpendicular with the eccentric center line of eccentric shaft.
Preferred radial direction is regulated more easily.
As preferably, wherein the center line of a said screw is positioned on the plane at the two place of rotation centerline of eccentric center line and eccentric shaft of eccentric shaft.
Preferred this plane also is convenient to regulate.
As preferably, also be provided with the stopping screw that matches with adjusting screw in the said screw.
Fine adjustment screw also comprises the stopping screw, and in the rotation of eccentric shaft, dull joint screw takes place loosening easily, 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 utility model;
Fig. 2 is the structure sectional view of A-A among Fig. 1;
Fig. 3 is the another kind of structural representation of the utility model;
Fig. 4 is the structure sectional view of B-B among Fig. 3;
Fig. 5 is the structural representation of the utility model moment fine adjustment screw.
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-stopping screw.
Embodiment
Embodiment below in conjunction with concrete further explains the utility model.
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 symmetry be connected the capacity eccentric bearing shelves 4, concentric bearings shelves 3, locking shelves 2 and the benchmark shelves 1 that connect shelves 5 both sides and form jointly, the axle center of concentric bearings shelves 3 of both sides, locking grades 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 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 eccentric center line and concentric bearings shelves 3 of capacity eccentric bearing shelves 4; 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 adjusting screw 7 and stopping screw 8 together.
Embodiment 2: like Fig. 3 and shown in Figure 4, connect 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 adjusting screw 7 and stopping screw 8 together.
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 eccentric center line and concentric bearings shelves 3 of capacity eccentric bearing shelves 4.
All the other are with embodiment 1.
Practical: in above-mentioned adjustment process, make the center of mass point N that connects shelves 5 be positioned at the eccentric offside of capacity eccentric bearing shelves 4, the shaft axis that promptly 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 with the eccentric moment of capacity eccentric bearing shelves 4 but is in the opposite direction.
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 said screw is positioned on the plane at the two place of rotation centerline of eccentric center line and eccentric shaft of eccentric shaft;
Be provided with in the said 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 stopping screw that matches with adjusting screw in the said 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 said cross screw comprises two mutual vertical but disjoint screws;
Be provided with in the said 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, said screw all radially runs through its center, and the screw direction of said 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 said screw is positioned on the plane at the two place of rotation centerline of eccentric center line and eccentric shaft of eccentric shaft.
6. according to the self balancing vernier device of claim 3 or 4 or 5 described eccentric shafts, it is characterized in that, also be provided with the stopping screw that matches with adjusting screw in the said screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108319 CN202468680U (en) | 2012-03-12 | 2012-03-12 | Self-balancing fine adjusting device for eccentric shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108319 CN202468680U (en) | 2012-03-12 | 2012-03-12 | Self-balancing fine adjusting device for eccentric shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468680U true CN202468680U (en) | 2012-10-03 |
Family
ID=46916839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220108319 Expired - Fee Related CN202468680U (en) | 2012-03-12 | 2012-03-12 | Self-balancing fine adjusting device for eccentric shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307088A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Self-balancing vernier device of eccentric shaft |
-
2012
- 2012-03-12 CN CN 201220108319 patent/CN202468680U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307088A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Self-balancing vernier device of eccentric shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20170312 |