CN204677684U - A kind of trunnion shaft damper mechanism for electrodeless variable-speed motor - Google Patents
A kind of trunnion shaft damper mechanism for electrodeless variable-speed motor Download PDFInfo
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- CN204677684U CN204677684U CN201520241402.0U CN201520241402U CN204677684U CN 204677684 U CN204677684 U CN 204677684U CN 201520241402 U CN201520241402 U CN 201520241402U CN 204677684 U CN204677684 U CN 204677684U
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- Prior art keywords
- trunnion shaft
- bent axle
- combination
- trunnion
- crankcase
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Abstract
The utility model relates to a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor, and it comprises trunnion shaft combination, trunnion shaft driving gear, balance shaft driven gear wheel, right crankcase, trunnion shaft left tegillum bearing, trunnion shaft right case bearing, left crankcase, the left tegillum of left crankcase, bent axle combination, trunnion shaft driving tooth woodruff key and balance shaft driven gear woodruff key.Damper mechanism of the present utility model has following beneficial effect: the noise 1, reducing motor, increasing service life of engine; 2, simple and reliable for structure.
Description
Technical field
The utility model belongs to mechanical field, relates to a kind of trunnion shaft damper mechanism, particularly relates to a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor.
Background technique
At present, during general stepless variable engine periodic duty, the movement velocity of piston quickly, and speed is very uneven, at upper and lower dead-centre position, the speed of piston is zero, and the position and speed in the middle of upper and lower stop reaches the highest, because piston does high-speed straight-line motion repeatedly in cylinder, very large inertial force must be produced on piston, wrist pin and connecting rod.The counterweight that connecting rod configures can balance these inertial force effectively. but counterweight only some moving-mass participation straight line motion on connecting rod, another part participates in rotating.Except upper and lower dead-centre position, various inertial force can not be fully balanced, and makes motor create vibrations.
When piston often moves up and down once, motor will be made to produce twice vibrations one on the other, so the vibration frequency of motor is relevant with the rotating speed of motor.In vibrational theory, the normal vibrations using the vibrations of multiple harmonic wave to describe motor, the single order that cries that wherein vibration frequency is identical with engine speed shakes, and frequency is that the second order that cries of engine speed 2 times shakes, the like, also there are three rank, quadravalence vibrations.But vibration frequency is higher, amplitude of vibration is less, more than 2 rank negligible.The vibrations of its single order account for more than 70% of whole vibration, are the main sources of vibrations.
Model utility content
Goal of the invention: the utility model makes improvement for above-mentioned prior art Problems existing, namely the utility model discloses that a kind of structure is simple, with low cost, damping effect is obvious, working stability is reliably for the trunnion shaft damper mechanism of stepless variable engine.
Technological scheme: a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor, comprise trunnion shaft combination, trunnion shaft driving gear, balance shaft driven gear wheel, right crankcase, trunnion shaft left tegillum bearing, trunnion shaft right case bearing, left crankcase, the left tegillum of left crankcase, bent axle combination, trunnion shaft driving tooth woodruff key and balance shaft driven gear woodruff key
One end of described trunnion shaft combination is connected with the trunnion shaft right case bearing in right crankcase, and the other end of described trunnion shaft combination is connected with the left tegillum bearing of the trunnion shaft in the left tegillum of left crankcase; The left tegillum of described left crankcase is connected with left crankcase,
Described trunnion shaft driving tooth woodruff key is connected with the left crank of bent axle; Described trunnion shaft driving gear is fixedly connected with the left crank of described bent axle by tightening nut, trunnion shaft driving tooth woodruff key; Described trunnion shaft driving gear is taken turns with described balance shaft driven gear and is engaged,
The combination of described bent axle to be press-fited by the interference of crankshaft-link rod major part pin by the left crank of bent axle, the right crank of bent axle, crankshaft-link rod and is formed by connecting; The left crank of described bent axle press-fits with left crankshaft bearing, timing sprocket interference and is connected; The right crank of described bent axle press-fits with right crankshaft bearing interference and is connected, and the left crankshaft bearing that on the left crank of described bent axle, interference press-fits is connected with the machining crankshaft bearing borehole of described left crankcase; The right crankshaft bearing that on the right crank of described bent axle, interference press-fits is connected with the machining crankshaft bearing borehole of described right crankcase;
Described balance shaft driven gear wheel press-fits formation trunnion shaft by described balance shaft driven gear woodruff key and trunnion shaft eccentric mass interference fit and combines.
Trunnion shaft eccentric mass in the combination of described trunnion shaft is positioned at bent axle combination left side, after timing sprocket and left crankshaft bearing.
A kind of preferred version as the trunnion shaft damper mechanism for electrodeless variable-speed motor a kind of in the utility model: described trunnion shaft driving gear to be gear normal module be 2 31 gears; Described balance shaft driven gear wheel for gear normal module be 31 gears of 2.
Beneficial effect: the utility model discloses a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor and there is following beneficial effect:
1, the application of trunnion shaft technology, the damping effect of motor is better; Reduce the noise of motor, increasing service life of engine, can extenuate the vibration of Finished Motorcycle of motorcycle effectively, improves Finished Motorcycle of motorcycle stability, can promote the comfort level of driver very well, the more important thing is the Safety performance greatly improving motorcycle.
2, simple and reliable for structure, simple gear transmission mode is utilized to carry out work, the trunnion shaft driving gear be fixedly connected with that rotarily drives combined by bent axle is rotated, drive the trunnion shaft eccentric mass of balance shaft driven gear wheel and trunnion shaft combination to combine synchronous rotary with bent axle by trunnion shaft driving gear again, it is contrary that direction and bent axle combine the crankshaft-link rod direction of combining; The opposite force that the quality that trunnion shaft combines upper trunnion shaft eccentric mass produces carrys out the shaking force of balanced engine; And the space taken is very little.
Accompanying drawing explanation
The internal structure schematic diagram of Fig. 1 a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor disclosed in the utility model;
The trunnion shaft principal and subordinate of Fig. 2 a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor disclosed in the utility model moves toothing schematic diagram;
Wherein:
The combination of 1-bent axle combination 2-trunnion shaft
3-trunnion shaft driving gear 4-balance shaft driven gear is taken turns
5-trunnion shaft left tegillum bearing 6-trunnion shaft right case bearing
7-right crankcase 8-left crankcase
The right crankshaft bearing of 9-left crankcase left tegillum 10-
11-timing sprocket 12-trunnion shaft eccentric mass
The left crank of 13-left crankshaft bearing 14-bent axle
15-bent axle right crank 16-crankshaft-link rod
17-trunnion shaft driving tooth woodruff key 18-balance shaft driven gear woodruff key
Embodiment:
Below embodiment of the present utility model is described in detail.
As depicted in figs. 1 and 2, a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor, comprise trunnion shaft combination 2, trunnion shaft driving gear 3, balance shaft driven gear wheel 4, right crankcase 7, trunnion shaft left tegillum bearing 5, trunnion shaft right case bearing 6, left crankcase 8, the left tegillum 9 of left crankcase, bent axle combination 1, trunnion shaft driving tooth woodruff key 17 and balance shaft driven gear woodruff key 18
Trunnion shaft combination one end of 2 is connected with the trunnion shaft right case bearing 6 in right crankcase 7, and the other end of trunnion shaft combination 2 is connected with the left tegillum bearing 5 of the trunnion shaft in the left tegillum of left crankcase 9; The left tegillum 9 of left crankcase is connected with left crankcase 8,
Trunnion shaft driving tooth woodruff key 17 is connected with the left crank 14 of bent axle; Trunnion shaft driving gear 3 is fixedly connected with the left crank 14 of bent axle by tightening nut, trunnion shaft driving tooth woodruff key 17; Trunnion shaft driving gear 3 and balance shaft driven gear are taken turns 4 and are engaged,
Bent axle combination 1 to be press-fited by the interference of crankshaft-link rod major part pin by the left crank of bent axle 14, the right crank 15 of bent axle, crankshaft-link rod 16 and is formed by connecting; The left crank of bent axle 14 press-fits with left crankshaft bearing 13, timing sprocket 11 interference and is connected; The right crank of bent axle 15 press-fits with the interference of right crankshaft bearing 10 and is connected, and the left crankshaft bearing 13 that on the left crank of bent axle 14, interference press-fits is connected with the machining crankshaft bearing borehole of left crankcase 8; The right crankshaft bearing 10 that on the right crank of bent axle 15, interference press-fits is connected with the machining crankshaft bearing borehole of right crankcase 7;
Balance shaft driven gear wheel 4 press-fits formation trunnion shaft by balance shaft driven gear woodruff key 18 and trunnion shaft eccentric mass 12 interference fit and combines 2.
In the present embodiment, trunnion shaft driving gear 3 for gear normal module be 31 gears of 2; Balance shaft driven gear wheel 4 for gear normal module be 2 31 gears.
On the left of the left side that trunnion shaft eccentric mass 12 in trunnion shaft combination 2 is positioned at trunnion shaft combination 2 and bent axle combination 1, after timing sprocket 11 and left crankshaft bearing 13.
When bent axle combination 1 rotates time, drive the trunnion shaft driving gear 3 and trunnion shaft driven gear 4 that are fixed on the left crank 14 of bent axle and trunnion shaft combination 2 to combine 1 with bent axle by bent axle left crank 14 to rotate by 1:1 rotating speed, it is contrary that direction and bent axle combine 1 direction simultaneously.Trunnion shaft eccentric mass 12 in trunnion shaft combination 2 combines 1 synchronous rotary with bent axle, crankshaft-link rod 16 sense of rotation in direction bent axle combination 1 is contrary, utilize the opposite force that the quality of the trunnion shaft eccentric mass 12 in trunnion shaft combination 2 produces, eliminate account for whole vibrations more than 70% single order shaking force, make motor obtain minimum shaking force, reach the vibrations reducing motor.
The utility model relates to a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor, as shown in Figure 1, one end of trunnion shaft combination 2 is connected with the trunnion shaft right case bearing 6 press-fited in right crankcase 7, trunnion shaft combine 2 the other end and the left tegillum of left crankcase 9 in the connection of the left tegillum bearing 5 of trunnion shaft that press-fits; The left tegillum 9 of left crankcase is connected by locating stud and bolt with left crankcase 8 again.
The left side (by trunnion shaft eccentric mass 12 here) of trunnion shaft combination 2 is pressed with balance shaft driven gear wheel 4 by balance shaft driven gear woodruff key 18 interference, forms trunnion shaft combination 2;
Trunnion shaft driving tooth woodruff key 17 is connected with the left crank 14 of bent axle; Trunnion shaft driving gear 3 to be connected with the left crank 14 of trunnion shaft driving tooth woodruff key 17 and bent axle by tightening nut and to be fastenedly connected;
Trunnion shaft driving gear 3, trunnion shaft driving gear 3 and balance shaft driven gear are taken turns 4 and are meshed; When bent axle combination 1 rotates time, the left crank 14 of bent axle, by trunnion shaft driving tooth woodruff key 17, drives the trunnion shaft driving gear 3 and trunnion shaft driven gear 4 that are fixed on left crank 14 and trunnion shaft combination 2 to combine 1 with bent axle and rotates by 1:1 rotating speed simultaneously.
Above mode of execution of the present utility model is elaborated.But the utility model is not limited to above-mentioned mode of execution, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (5)
1. the trunnion shaft damper mechanism for electrodeless variable-speed motor, it is characterized in that, comprise trunnion shaft combination (2), trunnion shaft driving gear (3), balance shaft driven gear wheel (4), right crankcase (7), trunnion shaft left tegillum bearing (5), trunnion shaft right case bearing (6), left crankcase (8), the left tegillum of left crankcase (9), bent axle combination (1), trunnion shaft driving tooth woodruff key (17) and balance shaft driven gear woodruff key (18)
Described trunnion shaft combination one end of (2) is connected with the trunnion shaft right case bearing (6) in right crankcase (7), and the other end of described trunnion shaft combination (2) is connected with the left tegillum bearing (5) of the trunnion shaft in the left tegillum of left crankcase (9); The left tegillum of described left crankcase (9) is connected with left crankcase (8),
Described trunnion shaft driving tooth woodruff key (17) is connected with the left crank of bent axle (14); Described trunnion shaft driving gear (3) is fixedly connected with the left crank of described bent axle (14) by tightening nut, trunnion shaft driving tooth woodruff key (17); Described trunnion shaft driving gear (3) is taken turns (4) and is engaged with described balance shaft driven gear,
Described bent axle combination (1) to be press-fited by the interference of crankshaft-link rod major part pin by the left crank of bent axle (14), the right crank of bent axle (15), crankshaft-link rod (16) and is formed by connecting; The left crank of described bent axle (14) press-fits with left crankshaft bearing (13), timing sprocket (11) interference and is connected; The right crank of described bent axle (15) press-fits with right crankshaft bearing (10) interference and is connected, and the left crankshaft bearing (13) that the upper interference of the left crank of described bent axle (14) press-fits is connected with the machining crankshaft bearing borehole of described left crankcase (8); The right crankshaft bearing (10) that the upper interference of the right crank of described bent axle (15) press-fits is connected with the machining crankshaft bearing borehole of described right crankcase (7);
Described balance shaft driven gear wheel (4) is adjacent with trunnion shaft eccentric mass (12), press-fit formation trunnion shaft by described balance shaft driven gear woodruff key (18) and trunnion shaft eccentric mass (12) interference fit to combine (2)
Trunnion shaft eccentric mass (12) on described trunnion shaft combination (2) is positioned at the left side and bent axle combination (1) left side of trunnion shaft combination (2), after timing sprocket (11) and left crankshaft bearing (13).
2. a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor as claimed in claim 1, is characterized in that, described trunnion shaft driving gear (3) for gear normal module be 31 gears of 2; Described balance shaft driven gear wheel (4) for gear normal module be 31 gears of 2.
3. a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor as claimed in claim 2, it is characterized in that, trunnion shaft eccentric mass (12) on described trunnion shaft combination (2) is positioned at the left side and bent axle combination (1) left side of trunnion shaft combination (2), after timing sprocket (11) and left crankshaft bearing (13).
4. a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor as claimed in claim 3, it is characterized in that, described balance shaft driven gear wheel (4) by trunnion shaft eccentric mass 12 here, press-fits formation trunnion shaft by described balance shaft driven gear woodruff key (18) and trunnion shaft eccentric mass (12) interference fit and combines (2).
5. a kind of trunnion shaft damper mechanism for electrodeless variable-speed motor as claimed in claim 4, it is characterized in that, trunnion shaft driving tooth woodruff key (17) is connected with the left crank of bent axle (14); Described trunnion shaft driving gear (3) is fixedly connected with the left crank of described bent axle (14) by tightening nut, trunnion shaft driving tooth woodruff key (17); Described trunnion shaft driving gear (3) is taken turns (4) and is engaged with described balance shaft driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241402.0U CN204677684U (en) | 2015-04-20 | 2015-04-20 | A kind of trunnion shaft damper mechanism for electrodeless variable-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241402.0U CN204677684U (en) | 2015-04-20 | 2015-04-20 | A kind of trunnion shaft damper mechanism for electrodeless variable-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677684U true CN204677684U (en) | 2015-09-30 |
Family
ID=54177377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520241402.0U Expired - Fee Related CN204677684U (en) | 2015-04-20 | 2015-04-20 | A kind of trunnion shaft damper mechanism for electrodeless variable-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279854A (en) * | 2021-05-28 | 2021-08-20 | 广州三雅摩托车有限公司 | Engine structure capable of reducing excessive leaping of engine |
-
2015
- 2015-04-20 CN CN201520241402.0U patent/CN204677684U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279854A (en) * | 2021-05-28 | 2021-08-20 | 广州三雅摩托车有限公司 | Engine structure capable of reducing excessive leaping of engine |
| CN113279854B (en) * | 2021-05-28 | 2021-12-10 | 广州三雅摩托车有限公司 | Engine structure capable of reducing excessive leaping of engine |
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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: 20150930 Termination date: 20160420 |