CN204900667U - Vibration damper of internal -combustion engine - Google Patents
Vibration damper of internal -combustion engine Download PDFInfo
- Publication number
- CN204900667U CN204900667U CN201520558629.8U CN201520558629U CN204900667U CN 204900667 U CN204900667 U CN 204900667U CN 201520558629 U CN201520558629 U CN 201520558629U CN 204900667 U CN204900667 U CN 204900667U
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- Prior art keywords
- combustion engine
- internal
- equilibrium block
- block
- trunnion shaft
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 abstract description 6
- 230000005284 excitation Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 230000001629 suppression Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
The utility model provides a vibration damper of internal -combustion engine. This vibration damper of internal -combustion engine possesses balanced axle, should balanced axle including main balancing piece and compensation balance piece, main balancing piece is constituted to be done, the part that takes place to disturb with the bent axle and the connecting rod of internal -combustion engine is cut to be removed, the compensation balance piece is set up in the balance epaxially for the vibration that produces when removing the balanced rotation of axes that arouses was cut in the compensation by the part because of main balancing piece phase place deviates. Adopt the utility model discloses a structure need not adopt the great high price material of mass ratio as the balancing piece, can ensure the damping effect yet.
Description
Technical field
The utility model relates to a kind of vibration damping equipment of internal-combustion engine.
Background technique
In the vibration damping equipment of internal-combustion engine, usually the position of trunnion shaft and size (external diameter, width etc.) are set as, make the movement locus of the movement locus of crankshaft-and-connecting-rod and trunnion shaft non-intersect.
If the quality of equilibrium block is m, the turning radius of center of gravity is r, the angular velocity of rotation of center of gravity is ω, then the excitation force being arranged on the equilibrium block generation on trunnion shaft is mr ω
2.Therefore, make the rotating shaft core of the center of gravity far from equilibrium axle of equilibrium block (make r larger), excitation force mr ω can be increased
2, be conducive to vibration damping.
But, the movement locus of the movement locus of trunnion shaft and bent axle and connecting rod be made non-intersect, that is, do not interfere with each other mutually in rotary motion (not bumping against), then need to make the radius of the equilibrium block on trunnion shaft less.Therefore, in order to ensure excitation force mr ω
2, only have the expensive material adopting proportion heavier (namely quality m and volume is larger), or the width of increase equilibrium block or number.So just, the increase of weight and cost can be caused.
In addition, as avoiding the additive method that above-mentioned interference occurs, can also as shown in Figure 3, corresponding to the actual operating state of motor, setting rotatable phase difference avoids the interference between equilibrium block 10 and bent axle 20.But, utilize rotatable phase difference to avoid interference limitation, as shown in Figure 4, when equilibrium block 10 existing the part with bent axle 20 or connecting rod 30 interfere, this part need be eliminated, to avoid disturbing.
Originally, the rotatable phase of equilibrium block 10 is set to reduce by bent axle 20 and the rotation of connecting rod 30 and the phase place of the vibration produced.Eliminate iff by above-mentioned interference sections, then rotatable phase originally can be made to produce and depart from.Therefore, be necessary as shown in Figure 5, the part S irrelevant with interference is also eliminated, to obtain desired phase place.Like this, just there will be because major part on equilibrium block is cut, and the quality (m) of equilibrium block entirety is diminished, the problem that effectiveness in vibration suppression reduces.
Model utility content
For above-mentioned technical problem, the purpose of this utility model is, provides a kind of vibration damping equipment not using the material (the heavy material of quality) of high price also can guarantee the internal-combustion engine of effectiveness in vibration suppression.
As the technological scheme solved the problems of the technologies described above, the utility model provides a kind of vibration damping equipment of internal-combustion engine.The vibration damping equipment of this internal-combustion engine possesses trunnion shaft, it is characterized in that: described trunnion shaft comprises main equilibrium block and compensating balance block, described main equilibrium block is configured to, the part occurring to disturb with bent axle and the connecting rod of internal-combustion engine is eliminated, described compensating balance block is arranged on described trunnion shaft, for compensating the phase deviation of the vibration produced when the described trunnion shaft caused by partly eliminating because of described main equilibrium block rotates.
The advantage with the vibration damping equipment of the internal-combustion engine of the present utility model of said structure is, because trunnion shaft comprises main equilibrium block and compensating balance block, so, after the part occurring to disturb with bent axle or connecting rod in main equilibrium block is eliminated, utilize compensating balance block, the phase deviation of the vibration produced when the trunnion shaft caused by partly eliminating because of main equilibrium block rotates can being compensated on the one hand, the quality of equilibrium block can be increased on the other hand, improve excitation force.Therefore, do not need to adopt the heavy expensive material of quality as equilibrium block, can guarantee effectiveness in vibration suppression yet.
Accompanying drawing explanation
Fig. 1 is the stereogram of the vibration damping equipment involved by the utility model.
Fig. 2 is the side view of the vibration damping equipment involved by the utility model.
Fig. 3 illustrates to utilize phase difference to avoid the schematic diagram of the method for the interference between equilibrium block and bent axle.
Fig. 4 illustrates the stereogram that the state disturbed occurs between equilibrium block and bent axle.
Fig. 5 is the stereogram of the prior art that the interference avoided between equilibrium block and bent axle is shown.
Embodiment
Below, with reference to accompanying drawing, mode of execution of the present utility model is described.
Vibration damping equipment involved by the utility model as shown in Figure 1, possesses the trunnion shaft 1 arranged for reducing vibration caused by the bent axle 2 of internal-combustion engine and the rotation of connecting rod 3.Trunnion shaft 1 has multiple equilibrium blocks of fan shape, produces vibration by their rotation.The vibration produced because of the rotation of trunnion shaft 1, the vibration phase produced with the motion because of bent axle 2 and connecting rod 3 is contrary, therefore reduces the vibration of internal-combustion engine by making above-mentioned two kinds of vibrations cancel out each other.
Be arranged on the equilibrium block 4 on trunnion shaft 1, be divided into main equilibrium block 4a and compensating balance block 4b from design.Main equilibrium block 4a occupies the major part of the quality producing vibration.In order to ensure excitation force, needing the turning radius of the center of gravity of main equilibrium block 4a to set larger, its result, can there is crossing part with the movement locus of bent axle 2 and connecting rod 3 in the movement locus of main equilibrium block 4a.
If only arrange main equilibrium block 4a on trunnion shaft 1, and be designed to produce vibration in desired phase place (phase place contrary with the phase place of the vibration of bent axle 2 and connecting rod 3), then can disturb between this main equilibrium block 4a and bent axle 2 or connecting rod 3.In the case, the part that main equilibrium block 4a occurs in interference can be eliminated, to avoid disturbing (colliding) between main equilibrium block 4a and bent axle 2 or connecting rod 3.
But, if the part (volume) that main equilibrium block 4a occurs in interference is eliminated, the phase place of the vibration produced can depart from the phase place desired by initial design, thus cannot obtain good effectiveness in vibration suppression.Therefore, need to arrange compensating balance block 4b.
Compensating balance block 4b is that the phase deviation in order to cause the part because having cut generation interference on main equilibrium block 4a compensates and arranges.Relevant concrete compensation method, is described referring to Fig. 2.
In present embodiment, the part that main equilibrium block 4a occurs to disturb with bent axle 2 and connecting rod 3 is eliminated, and is provided with the compensating balance block 4b for compensating this.First, represent that interference sections is by the load (with the rotating center of trunnion shaft for starting point) of the main equilibrium block 4a in the design before cutting by arrow A.Then, represent that interference sections is by the load of the main equilibrium block 4a after cutting by arrow B.Direction pointed by the arrow A of arrow B and trunnion shaft is different, and after visible disturbance part is cut, phase place there occurs and departs from.
Secondly, the load of compensating balance block 4b is represented by arrow C.As shown in Figure 2, after the part that interference occurs synthesize by the load (arrow B) of main equilibrium block 4a after cutting and the load (arrow C) of compensating balance block 4b, consistent by the load (arrow A) of the main equilibrium block in the design before cutting with the part that generation is disturbed.Thus, by configuring such compensating balance block 4b on trunnion shaft 1, can to because cutting the part that main equilibrium block 4a occurs in interference, the phase deviation caused compensates.
Compensating balance block 4b can be arranged on the arbitrary position axially of trunnion shaft 1.But, be preferably, compensating balance block 4b be configured to, make its movement locus not crossing with the movement locus of bent axle 2 and connecting rod 3.In the case, although the turning radius of the center of gravity of compensating balance block 4b is less than the turning radius of the center of gravity of main equilibrium block 4a, if but make the angle of compensating balance block 4b than large by the angle of the interference sections cut in main equilibrium block 4a, above-mentioned compensating action can be realized.
In vibration damping equipment of the present utility model, only with cutting the part occurring with bent axle 2 or connecting rod 3 in main equilibrium block 4a to disturb, other parts (with the part that interference is irrelevant) need not be cut, and compensate for the phase deviation caused because cutting the part that main equilibrium block 4a occurs in interference by arranging compensating balance block 4b.Therefore, the phase deviation of the vibration produced when the trunnion shaft 1 caused by partly eliminating because of main equilibrium block 4a rotates can being compensated on the one hand, the quality of equilibrium block can be increased on the other hand, improve excitation force.Its result, does not need to adopt the heavy expensive material of quality as equilibrium block, can guarantee effectiveness in vibration suppression yet.
In addition, vibration damping equipment of the present utility model is applicable to all internal-combustion engines possessing vibration damping equipment such as three cylinders in upright arrangement, four-cylinder in upright arrangement, two cylinders.
Claims (1)
1. a vibration damping equipment for internal-combustion engine, possesses trunnion shaft, it is characterized in that:
Described trunnion shaft comprises main equilibrium block and compensating balance block,
Described main equilibrium block is configured to, and the part occurring to disturb with bent axle and the connecting rod of internal-combustion engine is eliminated,
Described compensating balance block is arranged on described trunnion shaft, for compensating the phase deviation of the vibration produced when the described trunnion shaft caused by partly eliminating because of described main equilibrium block rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558629.8U CN204900667U (en) | 2015-07-29 | 2015-07-29 | Vibration damper of internal -combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558629.8U CN204900667U (en) | 2015-07-29 | 2015-07-29 | Vibration damper of internal -combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900667U true CN204900667U (en) | 2015-12-23 |
Family
ID=54922846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520558629.8U Active CN204900667U (en) | 2015-07-29 | 2015-07-29 | Vibration damper of internal -combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210139A (en) * | 2017-07-05 | 2019-01-15 | 本田技研工业株式会社 | Damper for internal combustion engine |
-
2015
- 2015-07-29 CN CN201520558629.8U patent/CN204900667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210139A (en) * | 2017-07-05 | 2019-01-15 | 本田技研工业株式会社 | Damper for internal combustion engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |