CN103307090B - A kind of groove type self-balancing eccentric shaft for jaw crusher - Google Patents
A kind of groove type self-balancing eccentric shaft for jaw crusher Download PDFInfo
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- CN103307090B CN103307090B CN201210072982.6A CN201210072982A CN103307090B CN 103307090 B CN103307090 B CN 103307090B CN 201210072982 A CN201210072982 A CN 201210072982A CN 103307090 B CN103307090 B CN 103307090B
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- eccentric
- shelves
- eccentric shaft
- balancing
- moment
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Abstract
The invention discloses a kind of groove type self-balancing eccentric shaft for jaw crusher, the same eccentric side subduction of connection shelves in prior art eccentric shaft and capacity eccentric bearing shelves part quality, it is the volume that a groove is removed in milling, the barycenter that connects shelves is offset with respect to rotation centerline offside toward capacity eccentric bearing shelves, the eccentric moment of inertia that reaches the generation of connection shelves equates with the eccentric moment of inertia that capacity eccentric bearing shelves produce, but opposite direction. Thereby realize the homeostasis of the rotation eccentric moment of inertia of eccentric shaft. The rotation eccentric moment of inertia of prior art eccentric shaft is changed into by the Equilibrium of eccentric shaft inside and being designed by outside flywheel balancing design by former. Thus, the eccentric balancing blocks on outside flywheel also just can have been exempted. The invention provides high, the easy detection control of a kind of balance quality, designs simplification, reduction device fabrication cost and save the groove type self-balancing eccentric shaft of operating cost.
Description
Technical field
The present invention relates to jaw crusher technical field, more specifically say a kind of recessed for jaw crusherSlot type self-balancing eccentric shaft.
Background technology
Jaw crusher, is commonly called as jaw broken, is one of with the longest history, most popular disintegrating apparatus. PartiallyAxle is most crucial parts in the broken equipment of jaw, the jaw one tight pine in the time of broken material in the broken crushing pair of jawFragmentation campaign just come from the bias design of eccentric shaft.
Prior art eccentric shaft has two center lines (referring to Fig. 1): 1. rotation centerline, concentric bearings shelves,The center line at the place, axle center of locking shelves and benchmark shelves; 2. eccentric center line, capacity eccentric bearing shelves be connected shelvesThe center line at place, axle center. The work done mechanism of eccentric shaft is: when motor flying on V-belt and benchmark shelvesAfter wheel is connected, drive eccentric shaft taking rotation centerline when axle center rotates, capacity eccentric bearing shelves drive and are placed on itOn moving jaw do a tight pine motion and carry out broken work done.
The bias design of eccentric shaft, in meeting the broken broken work done of jaw, also brings " rotation eccentric inertia forceSquare ", produce eccentric vibrating. Eccentric vibrating is very harmful to the normal operation of machinery, totally unfavorable to disintegrating machine.In order to overcome above-mentioned defect, prior art jaw is broken is that (wherein one is provided with triangle by setting up a pair of flywheelBelt grooves, has power transmission function concurrently, claims again sheave), and a balance weight is set on flywheel carrys out balance bias(orientation, balance weight place on flywheel is contrary with the bias on eccentric shaft, and eccentric for the eccentric moment of inertia of axleMoment equates).
The method that above-mentioned prior art solves eccentric vibrating has the following disadvantages: 1. need to increase flying of a pair of heavinessTake turns and on flywheel, add eccentric balancing blocks, Shi Epo mechanism is complicated, has increased manufacturing cost and operation consumptionMerit; 2. in the broken device fabrication of jaw, be difficult to detect levels of precision (the eccentric block weight of its moment of inertia balanceNot enough or exceed and eccentric orientation has error all can produce eccentric vibrating), therefore equal when the broken product export of general jawNot making balance detects. Therefore, prior art jaw is broken in use, and eccentric vibrating produces related componentsFatigue damage, reduces its service life, and the screw that wherein connects disintegrating machine and stand easily ruptures, and changes frequentlyNumerous; 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, provide that a kind of balance quality is high, Yi JianSurvey, the groove type self-balancing eccentric shaft of easy to control, designs simplification, reduction manufacture and operating cost.
In order to reach above object, the present invention is achieved by the following technical solutions: a kind of broken for jaw formulaThe groove type self-balancing eccentric shaft of broken machine, by the symmetrical eccentric shaft that connects shelves both sides that is connected to successively from the inside to surfaceHold shelves, concentric bearings shelves, locking shelves and benchmark shelves and jointly form, described concentric bearings shelves, locking shelves and baseThe axial line of accurate shelves is positioned on the rotation centerline of bearing, and the axial line of described capacity eccentric bearing shelves is positioned at bearingOn eccentric center line; It is characterized in that, on described connection shelves, be relatively positioned at the setting of capacity eccentric bearing shelves eccentric sideHave a groove, the center line of described groove is positioned at the eccentric center line of capacity eccentric bearing shelves and revolving of concentric bearings shelvesTurn in the plane at the two place of center line; The described eccentric moment of shelves and the eccentric moment of capacity eccentric bearing shelves of connectingEquate.
Prior art eccentric shaft has two center lines, i.e. rotation centerline and eccentric center line, in eccentric shaftCentre position the shelves that are connected that join with the capacity eccentric bearing shelves on both sides only play connection function. Perhaps be for processingConvenient and or custom, its axial line that connects shelves is arranged on the eccentric center line of capacity eccentric bearing shelves. ConnectShelves and capacity eccentric bearing shelves all produce eccentric moment of inertia, and are jointly come by the flywheel eccentric balancing blocks of outer settingBalance.
Technical scheme of the present invention is connection shelves and the same bias of capacity eccentric bearing shelves in prior art eccentric shaftSide subduction part quality (being the volume that a groove is removed in milling), makes the barycenter of connection shelves relative toward capacity eccentric bearing shelvesIn the offside skew of rotation centerline. Determining of its eccentric throw value should meet the requirement of eccentric moment of inertia balance.Eccentric moment of inertia equation of equilibrium: G1*m1＝G2*m2, (wherein G1For two, both sides capacity eccentric bearing shelves weight itWith, m1For eccentric centre-to-centre spacing, G2For connecting shelves weight, m2For connecting the eccentric centre-to-centre spacing of shelves).
Like this, connect eccentric moment of inertia that shelves produce just with the eccentric moment of inertia phase of capacity eccentric bearing shelves generationsDeng, but opposite direction has been realized the homeostasis of the rotation eccentric moment of inertia of eccentric shaft, thus exemptEccentric balancing blocks on outside flywheel.
Architectural feature of the present invention is: 1. internal feature: connecting on shelves by the eccentric center line of capacity eccentric bearing shelvesOne side is provided with the groove of coupling balance, is remarkable architectural feature of the present invention; 2. surface: the present inventionAnother significant feature be the eccentric balancing blocks of having exempted on outside flywheel.
Core technology of the present invention is: the connection shelves in eccentric shaft are leaned on to eccentric center line one side of capacity eccentric bearing shelves,Eliminate a quality (become and lack round cylinder) by metalworking, not changing under the condition of geometry, makeThe center of mass point that connects shelves oppositely moves to eccentric center line, utilizes reverse eccentric moment of inertia equilibrium principle, realExisting eccentric shaft homeostasis.
Beneficial effect: (1) simplified structure. Remove flywheel balancing piece from, reduce device fabrication and 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 and has consumedMerit 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. The present inventionRealize eccentric shaft homeostasis, removed flywheel balancing piece from, eliminated dual work done factor, improved brokenThe operating efficiency of broken machine.
(3) the vibration balancing precision of raising disintegrating machine. The employing of prior art eccentric shaft is set up a pair of flywheel and is passed throughThe method of external balance, manufacture and assembling process in be difficult to realize the accurate balance of eccentric moment of inertia, alsoBe difficult to detection enforcement fine setting by whole set equipment. So prior art disintegrating machine is because of the eccentric design of eccentric shaftCan not eliminate completely with the eccentric vibrating disadvantage that manufacture brings, some product even seriously exists.
Self-balancing eccentric shaft passes through the accurate design of eccentric shaft self and accurately processing and manufacturing, only need be to biasItself detects axle alone, need not make complete machine to disintegrating machine and detect, and fine setting is also convenient.
(4) if adopt the method that will connect grade geometric centers (axle center) and shift to eccentric center line offside, justCan increase the radius of turn of eccentric shaft, strengthen the diameter of eccentric shaft blank, thereby increase material and be processed intoThis. The present invention is under the prerequisite of mobile link shelves geometric center position not, connects shelves by eliminating oneQuality (milling one groove volume) realizes the centroid motion that connects shelves, does not both increase the rotation half of eccentric shaftFootpath, does not increase again material cost.
In like manner, the present invention can realize technical solution of the present invention with eccentric shaft blank or the finished product of prior art.Both new product can be manufactured, old product can be transformed again.
As preferably, in described groove, be provided with counterweight lamination, described counterweight lamination is by regulating screw and tuneJoint locked with bolts, described adjusting screw is positioned on described groove bottom land center line.
In eccentric shaft processing and manufacturing process, the depth of parallelism of rotation centerline and eccentric center line, the degree of eccentricity andThe processing dimension that eccentric shaft is each grade, more or less always exists some errors, these errors can affect bias and is used toThe balance quality of property moment. Therefore the present invention has designed as above counterweight lamination micro-adjusting mechanism, and counterweight lamination playsThe effect of balanced adjustment moment, being superposeed or reduced by counterweight lamination makes before and after the whole center of mass point that connects shelvesBe adjusted to optimum position.
As the alternative of such scheme, on described groove bottom land center line, be provided with a row fine setting hole, micro-Adjust in hole and be equipped with trimming bolt.
In eccentric shaft processing and manufacturing process, the depth of parallelism of rotation centerline and eccentric center line, the degree of eccentricity andThe processing dimension that eccentric shaft is each grade, more or less always exists some errors, these errors can affect bias and is used toThe balance quality of property moment. Therefore the present invention has designed and has as above finely tuned hole micro-adjusting mechanism, fine setting hole and fine setting spiral shellBolt plays the effect of balanced adjustment moment, thereby makes whole by increasing or reduce fine adjustment screw in fine setting holeBefore and after the individual center of mass point that connects shelves, be adjusted to optimum position.
As preferably, the number in described fine setting hole is odd number; The trimming bolt being equipped with is with middle fine setting holeFor benchmark bilateral symmetry is arranged.
The easy both sides of odd number equivalent is distributed.
As preferably, connect on shelves and be provided with the screw that radially runs through its center, the screw side of described screwTo perpendicular with the center line of described groove, in described screw, be provided with and its a pair of moment with threaded engagementFine adjustment screw.
Aforementioned is all to regulate at the eccentric direction of eccentric shaft mostly, in practical adjustments, and the left and right sides of eccentric shaftEasily occur eccentricly, as above micro-adjusting mechanism is set can effectively adjusts the balance of eccentric shaft left and right sides, makeEccentric shaft balance quality is higher.
Brief description of the drawings
Fig. 1 is a kind of structural representation of prior art;
Fig. 2 is a kind of structural representation of the present invention;
Fig. 3 is another kind of structural representation of the present invention;
Fig. 4 is the structure cutaway view of A-A in Fig. 3;
Fig. 5 is the structure cutaway view of B-B in Fig. 3;
Fig. 6 is also a kind of structural representation of the present invention;
Fig. 7 is the structure cutaway view of C-C in Fig. 6;
Fig. 8 is the structure cutaway view of D-D in Fig. 6.
In figure: 1-benchmark shelves, 2-locks shelves, 3-concentric bearings shelves, 4-capacity eccentric bearing shelves, 5-connects shelves,6-groove, 7-counterweight lamination, 8-regulates screw, 9-adjusting bolt, 10-finely tunes hole, 11-trimming bolt,12-screw, 13-set screw, 14-stop bit screw.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further detailed.
Embodiment 1: as shown in Figure 2, a kind of groove type self-balancing eccentric shaft for jaw crusher, by fromIn to outside the symmetrical capacity eccentric bearing shelves 4, concentric bearings shelves 3, the locking shelves 2 that connect shelves 5 both sides of being connected to successivelyJointly form with benchmark shelves 1, the axle center of concentric bearings shelves 3, locking shelves 2 and the benchmark shelves 1 of both sides is positioned at wholeThe rotation centerline O of axle1-O1Upper, capacity eccentric bearing shelves 4 axle center of both sides are positioned at the eccentric center line O of bearing2-O2On;
On connection shelves 5, be relatively positioned at capacity eccentric bearing shelves 4 eccentric sides and be provided with a groove 6, the center line of groove 6Be positioned at the plane at the eccentric center line of capacity eccentric bearing shelves 4 and the two place of rotation centerline of concentric bearings shelves 3On; Make the center of mass point N of connection shelves 5 be positioned at the eccentric offside of capacity eccentric bearing shelves 4, connect the inclined to one side of shelves 5Mental and physical efforts square equates but opposite direction with the eccentric moment of capacity eccentric bearing shelves 4.
Embodiment 2: as shown in Figure 3 and Figure 4, be provided with counterweight lamination 7 in groove 6, counterweight lamination 7 is logicalOverregulate screw 8 and adjusting bolt 9 locks, regulate screw 8 to be positioned on groove 6 bottom land center lines. All the otherWith embodiment 1.
Embodiment 3: as shown in Figure 5, connect on shelves 6 and be provided with the screw 12 that radially runs through its center,The screw direction of screw 12 and the center line of groove 6 are perpendicular, in screw 12, are provided with it and join with screw threadThe screw of a pair of moment fine setting of closing. This comprises two one in front and one in back leaning on of cooperatively interacting to moment fine adjustment screwThe set screw 13 being connected together and stop bit screw 14.
All the other are with embodiment 2.
Embodiment 4: as shown in Figure 6 and Figure 7, be provided with row totally 3 fine settings on groove 6 bottom land center linesHole 10, fine setting is equipped with trimming bolt 11 in hole 10. All the other are with embodiment 1.
Embodiment 5: as shown in Figure 8, connect on shelves 5 and be provided with the screw 12 that radially runs through its center,The screw direction of screw 12 and the center line of groove 6 are perpendicular, in screw 12, are provided with it and join with screw threadThe screw of a pair of moment fine setting of closing. This comprises two one in front and one in back leaning on of cooperatively interacting to moment fine adjustment screwThe set screw 13 being connected together and stop bit screw 14.
All the other are with embodiment 4.
Practical: the connection shelves in eccentric shaft are arranged to (or and rotation centerline by former in the same way with capacity eccentric bearing shelvesOverlap and arrange) change with it oppositely setting into, utilize reverse eccentric moment of inertia equilibrium principle, realize eccentric shaftHomeostasis is core technology of the present invention.
In above-mentioned adjustment process, make the center of mass point N that connects shelves be positioned at the eccentric offside of capacity eccentric bearing shelves,The axial line that connects shelves is positioned at capacity eccentric bearing shelves with respect to rotation centerline O1-O1Eccentric offside, thereby obtainThe eccentric moment that must connect shelves equates but opposite direction with the eccentric moment of capacity eccentric bearing shelves.
Claims (4)
1. for the groove type self-balancing eccentric shaft of jaw crusher, by symmetrical connection successively from the inside to surfaceCapacity eccentric bearing shelves, concentric bearings shelves, locking shelves and benchmark shelves in connection shelves both sides form jointly, described sameThe axial line of heart bearing guard, locking shelves and benchmark shelves is positioned on the rotation centerline of bearing, described capacity eccentric bearingThe axial line of shelves is positioned on the eccentric center line of bearing; It is characterized in that, on described connection shelves, be relatively positioned atCapacity eccentric bearing shelves eccentric side is provided with a groove, and the center line of described groove is arranged in the bias of capacity eccentric bearing shelvesIn the plane at the two place of rotation centerline of heart line and concentric bearings shelves; Described connect shelves eccentric moment withThe eccentric moment of capacity eccentric bearing shelves equates, the center of mass point that connects shelves is oppositely moved to eccentric center line, utilizesReverse eccentric moment of inertia equilibrium principle, realizes eccentric shaft homeostasis; In described groove, be provided with counterweight foldedSheet, described counterweight lamination is by regulating screw and adjusting bolt locking, and described adjusting screw is positioned at described grooveOn bottom land center line.
2. a kind of groove type self-balancing eccentric shaft for jaw crusher according to claim 1, itsBe characterised in that, on described groove bottom land center line, be provided with a row fine setting hole, fine setting is equipped with fine setting spiral shell in holeBolt.
3. a kind of groove type self-balancing eccentric shaft for jaw crusher according to claim 2, itsBe characterised in that, the number in described fine setting hole is odd number; The trimming bolt being equipped with is with middle fine setting Kong WeijiAccurate bilateral symmetry is arranged.
4. inclined to one side according to a kind of groove type self-balancing for jaw crusher described in claim 1 or 2 or 3Axle, is characterized in that, connects on shelves and is provided with the screw that radially runs through its center, the spiral shell of described screwThe center line of hole direction and described groove is perpendicular, is provided with it a pair of with threaded engagement in described screwMoment fine adjustment screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072982.6A CN103307090B (en) | 2012-03-12 | 2012-03-12 | A kind of groove type self-balancing eccentric shaft for jaw crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072982.6A CN103307090B (en) | 2012-03-12 | 2012-03-12 | A kind of groove type self-balancing eccentric shaft for jaw crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307090A CN103307090A (en) | 2013-09-18 |
| CN103307090B true CN103307090B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210072982.6A Expired - Fee Related CN103307090B (en) | 2012-03-12 | 2012-03-12 | A kind of groove type self-balancing eccentric shaft for jaw crusher |
Country Status (1)
| Country | Link |
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| CN (1) | CN103307090B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL109240C (en) * | 1961-06-12 | |||
| JPS5242302Y2 (en) * | 1974-09-30 | 1977-09-26 | ||
| JPS616243Y2 (en) * | 1979-07-16 | 1986-02-25 | ||
| US4779316A (en) * | 1987-05-06 | 1988-10-25 | Deere & Company | Crankshaft and a process for balancing the same |
| GB2279426B (en) * | 1993-06-29 | 1997-11-05 | Hyundai Motor Co Ltd | Crankshaft of V-type 6-cylinder internal combustion engine |
| JP2010209969A (en) * | 2009-03-09 | 2010-09-24 | Toyota Motor Corp | Crankshaft |
| CN201851585U (en) * | 2010-10-16 | 2011-06-01 | 常州亚美柯机械设备有限公司 | Diesel engine crankshaft balance assembly |
| 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 |
| CN202132369U (en) * | 2011-06-24 | 2012-02-01 | 成都大宏立机器制造有限公司 | Linear type vibration feeder exciter main shaft |
| CN102312909A (en) * | 2011-07-08 | 2012-01-11 | 江苏秋林重工股份有限公司 | Eccentric shaft |
| CN202468679U (en) * | 2012-03-12 | 2012-10-03 | 义乌市黑白矿山机械有限公司 | Groove type self-balance eccentric shaft |
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2012
- 2012-03-12 CN CN201210072982.6A patent/CN103307090B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103307090A (en) | 2013-09-18 |
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Granted publication date: 20160511 Termination date: 20200312 |