CN202833844U - Automobile balance shaft - Google Patents
Automobile balance shaft Download PDFInfo
- Publication number
- CN202833844U CN202833844U CN201220446675.5U CN201220446675U CN202833844U CN 202833844 U CN202833844 U CN 202833844U CN 201220446675 U CN201220446675 U CN 201220446675U CN 202833844 U CN202833844 U CN 202833844U
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- automobile
- shaft
- rotating shaft
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Abstract
The utility model discloses an automobile balance shaft which comprises a rotating shaft, a driving wheel and an eccentric balance weight, the rotating shaft is concentrically arranged at two ends of the eccentric balance weight, and the driving wheel is arranged at the end portion of the rotating shaft. By arranging the eccentric balance weight, the automobile balance shaft has the advantages of effectively eliminating a first level vibration and a second level vibration in the process of an engine operation, improving the stability of the automobile operation, reducing vibration of an automobile body, thereby effectively improving comfort degree of automobile riding.
Description
Technical field
The utility model relates to a kind of vehicle vibration damping equipment, particularly a kind of Automobile balance shaft.
Background technique
The trunnion shaft technology is a simple in structure and very practical engine technology, and it can effectively slow down the car load vibration, improves the travelling comfort of driving.We know that when motor was in working state, the movement velocity of piston was very fast, and speed is very inhomogeneous.When piston was positioned at up and down dead-centre position, its speed was zero, but then reached the highest in the speed in stop neutral position up and down.Because piston is done high-speed straight-line motion repeatedly in cylinder, therefore will inevitably produce larger inertial force at piston, wrist pin and connecting rod.Although the counterweight on the connecting rod is these inertial force of balance effectively, only some moving-mass participates in straight line motion, and another part has participated in rotation.Thereby except dead-centre position up and down, other inertial force can not reach state of equilibrium fully, and the motor of this moment has just produced vibration.In order to eliminate this vibration, the artificer has adopted a lot of methods, for example adopts the piston of lightweight to reduce " V " shapes layout motor of the quality of movement parts, the rigidity that improves bent axle, employing 60 degree angles etc.Increase trunnion shaft and also be these ways one of them, say that simply trunnion shaft is exactly an axle that eccentric weight is housed and rotates with crankshaft-synchronous in fact, the reversal of vibrations power of utilizing eccentric weight to produce makes motor obtain good counterbalance effect, reduces engine luggine.
Trunnion shaft can be divided into two kinds of single trunnion shaft and double balance shafts.Single trunnion shaft utilizes gear transmission mode to carry out work as the term suggests adopt single trunnion shaft, drives trunnion shaft actuation gear, balance shaft driven gear wheel and the trunnion shaft that is connected by crankshaft rotating.Single trunnion shaft can balance account for the sizable single order vibration of whole vibration ratio, make motor vibration be improved significantly.Because single balance shaft structure is simple, it is little to take up room, thereby uses comparatively extensive in single cylinder and small displacement engine.What double balance shaft then adopted is that the chain kind of drive drives two trunnion shafves rotations, and wherein a trunnion shaft is identical with the rotating speed of motor, can eliminate the single order vibration of motor; The rotating speed of another root trunnion shaft is 2 times of engine speed, can eliminate the second order vibration of motor, thereby reach more desirable effectiveness in vibration suppression.Because the structure of double balance shaft is comparatively complicated, cost space high, that take motor is relatively large again, therefore generally comparatively commonly used on large discharge capacity automobile.In addition, also have a kind of double balance shaft arrangement, two trunnion shafves and cylinder centerline is angled is arranged symmetrically with exactly, sense of rotation is opposite, and rotating speed is identical with speed of crankshaft, in order to the first order reciprocating inertia force of balanced engine.
The model utility content
For addressing the above problem, the utility model discloses the eccentrically mounted weight by arranging, effectively eliminate single order vibration and second order vibration in the engine operation process, thereby effectively improved the comfort level that automobile is driven.
The disclosed a kind of Automobile balance shaft of the utility model comprises rotating shaft, driving wheel and eccentrically mounted weight, and described rotating shaft is arranged on the two ends of eccentrically mounted weight, the coaxial setting of described rotating shaft, and described driving wheel is arranged on roller end.The eccentrically mounted weight of the utility model by arranging, single order vibration and second order vibration in the engine operation process have effectively been eliminated, improved the stability of automobilism, reduce body oscillating, thereby effectively improved the comfort level that automobile is driven, can also effectively reduce simultaneously vibration bump and wearing and tearing between the auto parts machinery, thereby reduced the loss of auto-parts, improved the working life of auto parts machinery, thereby effectively reduced working service and the cost of upkeep of automobile, and improved Security and the travelling comfort of automobile.
A kind of improvement of the disclosed a kind of Automobile balance shaft of the utility model also is provided with limited ring in the described rotating shaft, described limited ring is coaxial to be arranged in the rotating shaft of driving wheel inboard.This improvement is demarcated the mounting point of trunnion shaft by the limited ring that arranges, thereby reduced the installation difficulty of trunnion shaft, improved installation precision, reduced the mutual interference effect between trunnion shaft and the transmission shaft, thereby the safety and stability of running of trunnion shaft, effectively improved the comfort level of automobile.
Another improvement of the disclosed a kind of Automobile balance shaft of the utility model, described limited ring are high-elastic rubber ring.This improvement is limited ring by high-elastic rubber ring is set, playing the location indication for the installation exercise of Automobile balance shaft when, can also provide buffering for the collision that is difficult in the operation avoid, avoid trunnion shaft in installation exercise, to sustain damage and be damaged, improve Security and the installation precision of installation exercise, reduced task difficulty.
Another of the disclosed a kind of Automobile balance shaft of the utility model improved, and described limited ring is provided with two at least in the rotating shaft of each end of eccentrically mounted weight.This improvement is by arranging at least two limited rings in each rotating shaft; improved the protective ability of limited ring countershaft; thereby protected the surface of revolution of rotating shaft; improved the quality of fit between Automobile balance shaft and accessory; effectively prolong the working life of Automobile balance shaft, reduced the device wearing and tearing.
The disclosed a kind of Automobile balance shaft of the utility model, single order vibration and second order vibration in the engine operation process have effectively been eliminated, and the installation exercise that has reduced trunnion shaft is baffled, improved installation precision, thereby effectively reduced working service and the cost of upkeep of automobile, and improved Security and the travelling comfort of automobile.
Description of drawings
Fig. 1, structural representation of the present utility model;
Reference numerals list: 1, rotating shaft, 2, driving wheel, 3, eccentrically mounted weight, 4, limited ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand following embodiment and only be used for explanation the utility model and be not used in restriction scope of the present utility model.
As shown in Figure 1, the disclosed a kind of Automobile balance shaft of the utility model comprises rotating shaft 1, driving wheel 2 and eccentrically mounted weight 3, and described rotating shaft 1 is arranged on the two ends of eccentrically mounted weight 3, described rotating shaft 1 coaxial setting, and described driving wheel 2 is arranged on rotating shaft 1 end.The eccentrically mounted weight of the utility model by arranging, single order vibration and second order vibration in the engine operation process have effectively been eliminated, improved the stability of automobilism, reduce body oscillating, thereby effectively improved the comfort level that automobile is driven, can also effectively reduce simultaneously vibration bump and wearing and tearing between the auto parts machinery, thereby reduced the loss of auto-parts, improved the working life of auto parts machinery, thereby effectively reduced working service and the cost of upkeep of automobile, and improved Security and the travelling comfort of automobile.
As a kind of preferred, also be provided with limited ring 4 in the described rotating shaft 1, described limited ring 4 is coaxial to be arranged in the rotating shaft 1 of driving wheel 2 inboards.The utility model is demarcated the mounting point of trunnion shaft by the limited ring that arranges, thereby reduced the installation difficulty of trunnion shaft, improved installation precision, reduced the mutual interference effect between trunnion shaft and the transmission shaft, thereby the safety and stability of running of trunnion shaft, effectively improved the comfort level of automobile.
As a kind of preferred, described limited ring 4 is high-elastic rubber ring.The utility model is limited ring by high-elastic rubber ring is set, playing the location indication for the installation exercise of Automobile balance shaft when, can also provide buffering for the collision that is difficult in the operation avoid, avoid trunnion shaft in installation exercise, to sustain damage and be damaged, improve Security and the installation precision of installation exercise, reduced task difficulty.
As a kind of preferred, described limited ring 4 is provided with two at least in the rotating shaft 1 of eccentrically mounted weight 6 each end.The utility model is by arranging at least two limited rings in each rotating shaft; improved the protective ability of limited ring countershaft; thereby protected the surface of revolution of rotating shaft; improved the quality of fit between Automobile balance shaft and accessory; effectively prolong the working life of Automobile balance shaft, reduced the device wearing and tearing.
The disclosed a kind of Automobile balance shaft of the utility model, single order vibration and second order vibration in the engine operation process have effectively been eliminated, and the installation exercise that has reduced trunnion shaft is baffled, improved installation precision, thereby effectively reduced working service and the cost of upkeep of automobile, and improved Security and the travelling comfort of automobile.
The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technological scheme that is comprised of above technical characteristics combination in any.The above is embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (4)
1. Automobile balance shaft, it is characterized in that: comprise rotating shaft, driving wheel and eccentrically mounted weight, described rotating shaft is arranged on the two ends of eccentrically mounted weight, the coaxial setting of described rotating shaft, described driving wheel is arranged on roller end.
2. a kind of Automobile balance shaft according to claim 1 is characterized in that: also be provided with limited ring in the described rotating shaft, described limited ring is coaxial to be arranged in the rotating shaft of driving wheel inboard.
3. a kind of Automobile balance shaft according to claim 2, it is characterized in that: described limited ring is high-elastic rubber ring.
4. according to claim 2 or 3 described a kind of Automobile balance shafts, it is characterized in that: described limited ring is provided with two at least in the rotating shaft of each end of eccentrically mounted weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446675.5U CN202833844U (en) | 2012-09-04 | 2012-09-04 | Automobile balance shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446675.5U CN202833844U (en) | 2012-09-04 | 2012-09-04 | Automobile balance shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833844U true CN202833844U (en) | 2013-03-27 |
Family
ID=47945555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220446675.5U Expired - Lifetime CN202833844U (en) | 2012-09-04 | 2012-09-04 | Automobile balance shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833844U (en) |
-
2012
- 2012-09-04 CN CN201220446675.5U patent/CN202833844U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |