CN105626302A - Clearance elimination mechanism for engine crankshaft - Google Patents
Clearance elimination mechanism for engine crankshaft Download PDFInfo
- Publication number
- CN105626302A CN105626302A CN201410626227.7A CN201410626227A CN105626302A CN 105626302 A CN105626302 A CN 105626302A CN 201410626227 A CN201410626227 A CN 201410626227A CN 105626302 A CN105626302 A CN 105626302A
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- CN
- China
- Prior art keywords
- crankshaft
- installing hole
- crankcase
- tension force
- eliminating mechanism
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- 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.)
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a clearance elimination mechanism for an engine crankshaft. A crankshaft is arranged on a crankcase in a penetrating manner. A crankshaft bearing pedestal is arranged on the crankcase. A bearing is arranged on the bearing pedestal. Mounting hole seats are arranged on the crankcase. Mounting holes penetrating through and formed in the axial wall surface of the bearing pedestal are formed in the mounting hole seats. The mounting hole seats are provided with the clearance elimination mechanisms which comprise tension plungers, springs and spacing plate pieces. The tension plungers are accommodated in the mounting holes and can slide. The springs push and are propped against the tension plungers. The spacing plate pieces cover the mounting holes and press the springs. The bearing comprises an outer ring and an inner ring. The bearing pedestal comprises a ring wall part and a vertical wall part. The mounting holes are provided with opening parts. The opening parts are formed in the crossed part between the ring wall part and the vertical wall part. The tension plungers compress the springs when covering the mounting holes by virtue of the spacing plate pieces, the springs are driven to push the tension plungers to be propped against the outer ring to eliminate the crankshaft clearance, the condition that the clearance between the crankshaft and the bearing pedestal and the clearance between the bearing and the bearing pedestal, which is caused by the fact that owing to the internal burning explosion of an engine, the high thrust to the pistons is generated is avoided, the engagement of parts connected with the crankshaft is ensured, and the using effect of the engine is improved.
Description
Technical field
The present invention is the clearance eliminating mechanism about a kind of engine crankshaft, and espespecially one can eliminate engine crankshaft gap and avoid this clearance eliminating mechanism to produce the clearance eliminating mechanism of the engine crankshaft disturbed with other component (accessory).
Background technology
During car engine running, because having gap between this bent axle and crankshaft bearing, so this bent axle and crankshaft bearing can produce the abnormal sound clashed into when engine operates, simultaneously because the existence in this gap more can cause, former other component being meshed with this bent axle engages the defect generations such as bad.
As shown in Figure 1, 2, create TaiWan, China for practitioner and invented No. 93126901 " bearing construction of the crank axle of internal combustion engine ", this Patent Case is provided with play absorbing mechanism 11 on crankcase 1, this play absorbing mechanism 11 includes groups of springs plate 111, spring member 112 and and promotes plug-in unit 113, thereby solves the gap between this bent axle and crankshaft bearing. But, the length of this play absorbing mechanism 11 has in turn resulted in this play absorbing mechanism 11 rear cannot arrange the defect of other component again.
But, how to be avoided that this play absorbing mechanism produces interference with other component, to promote use effect of engine, the problem urgently overcome for motorcycle dealer.
Summary of the invention
Present invention is primarily aimed at the clearance eliminating mechanism that a kind of engine crankshaft is provided, thereby can eliminate on the one hand engine crankshaft gap, overcome the clearance eliminating mechanism of engine crankshaft easily to produce the defect disturbed with other component on the other hand.
The present invention is for reaching above-mentioned purpose, the technical way adopted is in that: provide the clearance eliminating mechanism of a kind of engine crankshaft, this engine crankcase is provided with the bent axle being arranged in this crankcase, this crankcase has crankshaft bearing seat, this crankshaft bearing seat is provided with the bearing being available for supporting bent axle, this crankcase is provided with multiple installing hole seat, and this installing hole seat has installing hole that is through and that be formed at the axial wall of crankshaft bearing seat, and this installing hole seat is provided with clearance eliminating mechanism; This clearance eliminating mechanism includes: by the tension force plunger of each accommodating in above-mentioned installing hole and slip and the spring pushing against this tension force plunger, and can cover above-mentioned multiple installing hole simultaneously and suppress the spacing plate of this spring; Wherein, this bearing includes an outer shroud and an internal ring, and this crankshaft bearing seat includes a ringwall portion and a straight wall portion; This installing hole has peristome, and this peristome is the ringwall portion being opened in crankshaft bearing seat and straight wall portion intersection; This tension force plunger is made by when this spacing plate covers installing hole, this spring being compressed, and then interlocks this spring and promote this tension force plunger to compress the outer shroud of this bearing.
Effect that the present invention can reach by above-mentioned technological means is in that: by installing multiple clearance eliminating mechanism on this crankcase, thereby the pressing part of the spacing plate of this clearance eliminating mechanism can compress this spring, this tension force plunger can be formed pressure by this spring, the pressure section of this tension force plunger is exposed outside the peristome of this installing hole, and press on the outer shroud of this bearing, thereby eliminate the gap of this bent axle, can avoid, because engine internal fires, this piston produces weight thrust simultaneously, the heavy thrust of this piston is transferred to this bent axle by this connecting rod, and easily make this bent axle, gap is produced between bearing and crankshaft bearing seat, thereby can ensure that the degree of engagement of other parts being connected with bent axle, and then the result of use that engine is overall can be promoted.
Another effect of the present invention is in that: be the radical length maximum shorter than this tension force plunger by the greatest axial length of the tension force plunger of this clearance eliminating mechanism, and the axial length after this spring-compressed is the radical length shorter than this spring, thereby can effectively shorten the length that this clearance eliminating mechanism is overall; Therefore, being formed with space in the crankcase of this clearance eliminating mechanism rear end, this space is available for the installation of starter receiver group or other component, thereby more can promote the result of use of engine.
Accompanying drawing explanation
Fig. 1,2 be invention No. 93126901 " bearing construction of the crank axle of internal combustion engine ".
Fig. 3 is the clearance eliminating mechanism decomposing schematic representation of engine crankshaft of the present invention.
The clearance eliminating mechanism that Fig. 4 is engine crankshaft of the present invention assembles schematic diagram.
Fig. 5 is the clearance eliminating mechanism sectional view of engine crankshaft of the present invention.
Detailed description of the invention
For making the structure that those skilled in the art are easier to understand the present invention and the effect that can reach, now accompanying drawing is coordinated to illustrate as follows;
First, refer to Fig. 3, shown in 5, the clearance eliminating mechanism of the engine crankshaft of the present invention, this clearance eliminating mechanism 2 is mounted on the crankcase 3 of engine, arranges crankshaft bearing seat 31 in this crankcase 3, has been installed with bearing 32 in this crankshaft bearing seat 31, this bearing 32 is equipped with bent axle 4, this bent axle 4 has collar 41, and this collar 41 is in outside this bearing 32, and this bent axle 4 connects a piston (not drawing in accompanying drawing) by a connecting rod.
As it is shown in figure 5, this crankshaft bearing seat 31 has ringwall portion 311 and straight wall portion 312; This bearing 32 has outer shroud 321, rolling member 322 (implementing in practice) and internal ring 323 with ball or needle roller, and wherein, this rolling member 322 covers folded by outer shroud 321 and internal ring 323; Outer shroud 321 external diameter of this bearing 32 is slightly less than ringwall portion 311 internal diameter of this crankshaft bearing seat 31, outer shroud 321 outboard end of this bearing 32 is to be resisted against in the straight wall portion 312 of this crankshaft bearing seat 31 simultaneously, thereby this bearing 32 is installed and bearing is in the ringwall portion 311 of this crankshaft bearing seat 31, two sides of this bent axle 4 then be install and bearing in the internal ring 323 of this bearing 32, thereby thus make this bent axle 4 be firmly installed in crankcase 3, and freely can be rotated by this piston driving by the supporting of bearing 32.
As shown in Figure 3,4, this crankcase 3 has right crankcase 3a and left crankcase (not drawing in accompanying drawing), multiple installing hole seat 33 it is provided with outside this right crankcase 3a, the corresponding crankshaft bearing seat axle 31 of this crankcase 3 axially protrudes out the installation base 331 being formed with installing hole seat 33, and the present invention illustrates with two installing hole seats 33. One end of this installing hole seat 33 is provided with and is provided with through in the installing hole 34 of crankcase 3 (right crankcase 3a) crankshaft bearing seat 31 wall in integrally formed mode, these two installing holes 34 are in in the outside 120 degree of angular range in crankshaft bearing seat 31 center, and the other end in this installing hole 34 is provided with locking hole 35; This installing hole seat 33 is available for this clearance eliminating mechanism 2 and installs; This crankcase 3 be additionally provided with can frame of carriage (not drawing in accompanying drawing) connect hanger 3b; This crankcase 3 each has corresponding crankshaft bearing seat 31 direction in the installation base 331 of the plurality of installing hole seat 33 and protrudes out and radially extended outwardly have reinforced ribs 3c; By this hanger 3b, engine (horizontal engine) can be unsteadily hubbed on the vehicle frame of scooter-type (pedal two-wheeled is light) motorcycle (not drawing in accompanying drawing).
Such as Fig. 3, shown in 5, this installing hole 34 offers a peristome 341 in the side of bottom, the peristome 341 of this installing hole 34 is to be provided towards the ringwall portion 311 of crankshaft bearing seat 31 and the intersection in straight wall portion 312 by outside crankcase 3, the contiguous ringwall portion 311 of this crankshaft bearing seat 31 of this installing hole 34 and the intersection in straight wall portion 312 open this peristome 341, specifically, the opening of this peristome 341 is directed towards the collar 41 of this bent axle 4.
Such as Fig. 3, shown in 5, this clearance eliminating mechanism 2 includes spacing plate 21, spring 22 and a tension force plunger 23; This spacing plate 21 has pressing part 211 and fixed part 212, this fixed part 212 has two lockholes 2121, this spacing plate 21 is made by bolting element S and wears two lockholes 2121 on the locking hole 35 being locked in this right crankcase 3a installing hole seat 33, this lockhole 2121 is to coincide with the reinforced ribs 3c that this crankcase 3 is extended outwardly, and namely the reinforced ribs 3c of this crankcase 3 becomes overlapping towards the extension line P of this lockhole 2121 and the center of this lockhole 2121; This pressing part 211 can compress this spring 22; This spring 22 one end is the pressing part 211 being resisted against this spacing plate 21, and the other end of this spring 22 stretches in this tension force plunger 23; This tension force plunger 23 has pressure section 231, and this pressure section 231 is for an oblique section, and this pressure section 231 is to be exposed to outside the peristome 341 of this installing hole 34, and thereby this pressure section 231 can press on the outer shroud 321 of this bearing 32.
As shown in Figure 3,4, the fixed part 212 of this spacing plate 21 has the outer anti-arc portion 2122 towards crankshaft bearing seat 31 projection, two lockholes 2121 of this fixed part 212 are the two ends being each close to this outer anti-arc portion 2122 ora terminalis, and this fixed part 212 is in the radial outside of the crankshaft bearing seat 31 of this crankcase 3; The pressing part 211 of this spacing plate 21 has the inner arc portion 2111 towards crankshaft bearing seat 31 direction indent, and this pressing part 211 is extended towards crankshaft bearing seat 31 center and be positioned at the outside of this crankshaft bearing seat 31 outer end 31a; Wherein the arc length in this inner arc portion 2111 is shorter than the arc length in this outer anti-arc portion 2122; This spacing plate 21 thereby can be made more compactification to be combined with this crankcase 3.
Such as Fig. 3, shown in 5, wherein, the greatest axial length L of this tension force plunger is the radical length D maximum shorter than this tension force plunger, and the axial length L 1 after this spring-compressed is the radical length D1 shorter than this spring, simultaneously maximum also shorter than this tension force plunger radical length D, thereby can effectively shorten the length of this clearance eliminating mechanism 2 entirety, to produce interference with other component after reducing this clearance eliminating mechanism 2 of installation.
Fig. 3,4,5 please be coordinated again jointly to consult, and the clearance eliminating mechanism of the engine crankshaft of the present invention is implemented, and the present invention is provided with many group clearance eliminating mechanisms 2, and following example are only installed as example explanation with one of which, this clearance eliminating mechanism 2 is to be installed between this hanger 3b and this crankshaft bearing seat 31, the tension force plunger 23 of this clearance eliminating mechanism 2, spring 22 sequentially loads the installing hole 34 of this crankcase 3 (right crankcase 3a), again this spacing plate 21 is worn two lockholes 2121 of fixed part 212 on the locking hole 35 being locked in this right crankcase 3a installing hole seat 33 with bolting element S, the pressing part 211 of this spacing plate 21 can compress this spring 22, this tension force plunger 23 can be formed pressure by this spring 22, the pressure section 231 of this tension force plunger 23 is exposed outside the peristome 341 of this installing hole 34, and press on the outer shroud 321 of this bearing 32, thereby eliminate the gap of this bent axle 4, can avoid, because engine internal fires, this piston produces weight thrust simultaneously, the weight thrust of this piston is transferred to this bent axle 4 by this connecting rod, and easily make this bent axle 4, gap is produced between bearing 32 and crankshaft bearing seat 31, thereby can ensure that the degree of engagement of other parts being connected with bent axle 4, and then the result of use that engine is overall can be promoted.
Such as Fig. 3, shown in 5, more need one to carry to be, due to the radical length D that the greatest axial length L of the tension force plunger 23 of this clearance eliminating mechanism 2 is maximum shorter than this tension force plunger, and the axial length L 1 after this spring-compressed is the radical length D1 shorter than this spring, thereby can effectively shorten the length of this clearance eliminating mechanism 2 entirety; Therefore, it is formed with space in the crankcase 3 of this clearance eliminating mechanism 2 rear end, this space is available for starter receiver group 5 or the installation of other component (such as oil pump transmission mechanism, one-way clutch, electromotor etc.), thereby more can promote the result of use of engine.
Effect of the present invention is in that, by this crankcase 3 is installed multiple clearance eliminating mechanism 2, thereby the pressing part 211 of the spacing plate 21 of this clearance eliminating mechanism 2 can compress this spring 22, this tension force plunger 23 can be formed pressure by this spring 22, the pressure section 231 of this tension force plunger 23 is exposed outside the peristome 341 of this installing hole 34, and press on the outer shroud 321 of this bearing 32, thereby eliminate the gap of this bent axle 4, can avoid, because engine internal fires, this piston produces weight thrust simultaneously, the weight thrust of this piston is transferred to this bent axle 4 by this connecting rod, and easily make this bent axle 4, gap is produced between bearing 32 and crankshaft bearing seat 31, thereby can ensure that the degree of engagement of other parts being connected with bent axle 4, and then the result of use that engine is overall can be promoted.
Another effect of the present invention is in that, by the radical length D that the greatest axial length L of the tension force plunger of the tension force plunger 23 of this clearance eliminating mechanism 2 is maximum shorter than this tension force plunger, and the axial length L 1 after this spring-compressed is the radical length D1 shorter than this spring, thereby can effectively shorten the length of this clearance eliminating mechanism 2 entirety; Therefore, being formed with space in the crankcase 3 of this clearance eliminating mechanism 2 rear end, this space is available for the installation of starter receiver group 5 or other component, thereby more can promote the result of use of engine.
The clearance eliminating mechanism of the engine crankshaft of the present invention is by above-mentioned structure, really can reach the purpose of demand, should meet the important document of the novelty of patent of invention, creativeness and industrial applicibility, therefore the application of patent of invention is proposed in accordance with the law, request the detailed mirror of your auditor, and grant the authorization checking and approving patent of invention, to sense moral just.
[symbol description]
1 crankcase 11 play absorbing mechanism
111 groups of springs plate 112 spring members
113 promote plug-in unit
The 2 spacing plates of clearance eliminating mechanism 21
211 pressing part 2111 inner arc portions
212 fixed part 2121 lockholes
2122 outer anti-arc portions
22 springs
23 tension force plunger 231 pressure sections
3 crankcase 3a right crankcase 3b hangers
3c reinforced ribs
31 crankshaft bearing seat 311 ringwall portions
312 31a outer end, straight wall portions
32 bearing 321 outer shrouds
322 rolling member 323 internal ring
33 installing hole seat 331 installation bases
34 installing hole 341 peristomes
35 locking holes
4 bent axle 41 collars
5 starter receiver groups
The greatest axial length of L tension force plunger
Axial length after L1 spring-compressed
The radical length that D tension force plunger is maximum
The radical length of D1 spring
S bolting element
P extension line
Claims (10)
1. the clearance eliminating mechanism of an engine crankshaft, this engine is provided with the bent axle being arranged in crankcase, this crankcase has crankshaft bearing seat, this crankshaft bearing seat is provided with the bearing being available for supporting bent axle, it is characterized in that: this crankcase is provided with multiple installing hole seat, this installing hole seat has installing hole that is through and that be formed at the axial wall of crankshaft bearing seat, and this installing hole seat is provided with clearance eliminating mechanism;
This clearance eliminating mechanism includes: by the tension force plunger of each accommodating in above-mentioned installing hole and slip and the spring pushing against this tension force plunger, and can cover above-mentioned multiple installing hole simultaneously and suppress the spacing plate of this spring;
Wherein, this bearing includes an outer shroud and an internal ring, and this crankshaft bearing seat includes a ringwall portion and a straight wall portion;
The peristome that this installing hole has, this peristome is the ringwall portion being opened in crankshaft bearing seat and straight wall portion intersection;
This tension force plunger is made by when this spacing plate covers installing hole, this spring being compressed, and then interlocks this spring and promote this tension force plunger to compress the outer shroud of this bearing.
2. the clearance eliminating mechanism of engine crankshaft as claimed in claim 1, it is characterised in that the tension force plunger housed in the plurality of installing hole, the greatest axial length of this tension force plunger is the radical length maximum shorter than this tension force plunger.
3. the clearance eliminating mechanism of engine crankshaft as claimed in claim 1, it is characterized in that, the plurality of spring being placed in installing hole by the compacting of this spacing plate to push against this tension force plunger, the axial length after this spring-compressed is the radical length maximum shorter than this tension force plunger.
4. the clearance eliminating mechanism of the engine crankshaft as described in claim 1 or 3, it is characterized in that, the plurality of spring being placed in installing hole by the compacting of this spacing plate to push against this tension force plunger, the axial length after this spring-compressed is the radical length shorter than its spring.
5. the clearance eliminating mechanism of engine crankshaft as claimed in claim 1, it is characterised in that described in compress this tension force plunger of this outer race, be using an inclined-plane as pressure section; And described spacing plate is flat board.
6. the clearance eliminating mechanism of the engine crankshaft as described in claim 1 or 5, it is characterised in that described spacing plate has fixed part and pressing part, and this fixed part is in the radial outside of the crankshaft bearing seat of crankcase; This pressing part is the outside of the outer end of the crankshaft bearing seat extending into crankcase towards crankshaft center direction, and this spring of blanketing compresses the outer shroud of this bearing so as to push against this tension force plunger; Described fixed part has the outer anti-arc portion towards crankshaft bearing seat projection; Described pressing part has the inner arc portion towards crankshaft bearing seat indent; The fixed part of described spacing plate has two lockholes, and described lockhole is the two ends of each arc ora terminalis in contiguous outer anti-arc portion; The arc length in the inner arc portion of described indent is the arc length in the outer anti-arc portion shorter than projection.
7. the clearance eliminating mechanism of engine crankshaft as claimed in claim 1, it is characterized in that, this crankcase correspondence crankshaft bearing seat axially protrudes out and is formed with multiple respective installation base of installing hole seat, described crankcase each has radially extended reinforced ribs in the plurality of installation base, described spacing plate has fixed part, described installation base correspondence fixed part place is provided with locking hole, and described locking hole is the extension line coinciding with reinforced ribs.
8. the clearance eliminating mechanism of engine crankshaft as claimed in claim 1, it is characterised in that the plurality of installing hole is in the angular range of 120 degree centered by crankshaft bearing seat.
9. the clearance eliminating mechanism of engine crankshaft as claimed in claim 1, it is characterised in that also at least provided with starter receiver group or oil pump transmission mechanism or one-way clutch or electromotor outside the spacing plate of this clearance eliminating mechanism.
10. the clearance eliminating mechanism of engine crankshaft as claimed in claim 1, it is characterised in that described crankcase is additionally provided with the hanger being connected with vehicle frame, and this clearance eliminating mechanism is between crankshaft bearing seat and hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626227.7A CN105626302B (en) | 2014-11-07 | 2014-11-07 | The clearance eliminating mechanism of engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626227.7A CN105626302B (en) | 2014-11-07 | 2014-11-07 | The clearance eliminating mechanism of engine crankshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105626302A true CN105626302A (en) | 2016-06-01 |
| CN105626302B CN105626302B (en) | 2018-04-27 |
Family
ID=56041559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410626227.7A Active CN105626302B (en) | 2014-11-07 | 2014-11-07 | The clearance eliminating mechanism of engine crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626302B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1338351A (en) * | 1919-07-07 | 1920-04-27 | Clark J Blankinship | Piston-rod journal-bearing |
| CN1080698A (en) * | 1992-06-26 | 1994-01-12 | 横井产业株式会社 | The diminishing of gap of bearing means |
| US5609422A (en) * | 1993-09-09 | 1997-03-11 | Dr. Ing.H.C.F Porsche Ag | Crankshaft bearing |
| CN1603644A (en) * | 2003-09-30 | 2005-04-06 | 本田技研工业株式会社 | Bearing structure of crankshaft in internal combustion engine |
| CN101684854A (en) * | 2008-09-25 | 2010-03-31 | 本田技研工业株式会社 | Cam chain tension pivot mounting structure of internal combustion engine |
-
2014
- 2014-11-07 CN CN201410626227.7A patent/CN105626302B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1338351A (en) * | 1919-07-07 | 1920-04-27 | Clark J Blankinship | Piston-rod journal-bearing |
| CN1080698A (en) * | 1992-06-26 | 1994-01-12 | 横井产业株式会社 | The diminishing of gap of bearing means |
| US5609422A (en) * | 1993-09-09 | 1997-03-11 | Dr. Ing.H.C.F Porsche Ag | Crankshaft bearing |
| CN1603644A (en) * | 2003-09-30 | 2005-04-06 | 本田技研工业株式会社 | Bearing structure of crankshaft in internal combustion engine |
| CN101684854A (en) * | 2008-09-25 | 2010-03-31 | 本田技研工业株式会社 | Cam chain tension pivot mounting structure of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105626302B (en) | 2018-04-27 |
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