CN212131193U - Balance shaft structure and vehicle - Google Patents
Balance shaft structure and vehicle Download PDFInfo
- Publication number
- CN212131193U CN212131193U CN202020099299.1U CN202020099299U CN212131193U CN 212131193 U CN212131193 U CN 212131193U CN 202020099299 U CN202020099299 U CN 202020099299U CN 212131193 U CN212131193 U CN 212131193U
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- balance
- bearing
- balance shaft
- shaft
- assembly
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Abstract
The utility model relates to an engine technology field specifically is a balanced axle construction and vehicle, balanced axle construction includes: the device comprises a crankshaft assembly, a balance assembly and a servo motor; the crankshaft assembly is connected with the balance assembly, the balance assembly comprises a balance shaft, a balance block and a bearing, the balance block is arranged on the balance shaft, the bearing comprises a first bearing and a second bearing, the first bearing is arranged in the middle of the balance shaft, one end of the balance shaft is connected with the second bearing, the other end of the balance shaft is connected with the servo motor, and the servo motor drives the balance assembly to rotate; the utility model discloses a servo can replace the gear drive or the chain drive mechanism of balanced axle, eliminates to type and beat the abnormal sound of tooth, can control balanced axle starting time lag simultaneously, waits to lubricate restart after abundant, reduces the wearing and tearing of balanced axle bearing, also can control balanced axle through servo and do not participate in work, reduces the work of rubbing power reduction engine oil consumption.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to balanced axle construction and vehicle.
Background
With the development of economy, more and more families can buy vehicles, when people select the vehicles, the power performance, the economy and the comfort of the vehicles, the important reference standard of selection, and the good power performance, the economy and the comfort are also the targets pursued by many automobile manufacturers when manufacturing the vehicles; in order to meet the higher requirements of passenger cars on vibration and noise, people want a plurality of methods to enable the engine to run more stably, and the balance shaft technology is widely applied at home and abroad as an important technology.
The balance shaft is actually a shaft which is provided with an eccentric mass block and rotates synchronously with the crankshaft, and the reverse centrifugal force generated when the eccentric mass rotates is utilized to eliminate the second-order vibration generated by the running of the engine, so that the engine obtains good balance effect, and the vibration and noise of the engine are reduced, thereby improving the comfort of the vehicle.
Most of driving types of the balance shafts are gear transmission or chain transmission, the balance shafts in all rotating speed intervals are in working states, and squealing and tooth knocking are more prone to occur in a gear transmission structure in a low rotating speed interval; when the balance shaft is in a low-temperature starting working condition, the bearing is easy to wear; the friction torque in the low speed range also results in high fuel consumption.
Therefore, the above problems need to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem of prior art, the utility model aims to provide a balance shaft structure and vehicle can replace the gear drive or the chain drive mechanism of balance shaft through servo, eliminates to whistle and strikes the tooth abnormal sound, can control balance shaft start time lag simultaneously, waits to lubricate restart after abundant, reduces the wearing and tearing of balance shaft bearing, also can control balance shaft and do not participate in work, reduces the friction work and reduces the engine oil consumption.
In order to solve the above problem, the utility model provides a balance shaft structure, include: the device comprises a crankshaft assembly, a balance assembly and a servo motor;
the crankshaft assembly is connected with the balance assembly, the balance assembly comprises a balance shaft, a balance block and a bearing, the balance block is arranged on the balance shaft, the bearing comprises a first bearing and a second bearing, the first bearing is arranged in the middle of the balance shaft, one end of the balance shaft is connected with the second bearing, the other end of the balance shaft is connected with the servo motor, and the servo motor is used for driving the balance assembly to rotate.
Further, the crankshaft assembly includes a crankshaft, a plurality of pistons, and a plurality of connecting rods, the pistons being connected with the crankshaft by the connecting rods.
Furthermore, the number of the pistons is four, and the pistons correspond to the connecting rods one to one.
Further, the balance shaft structure comprises two balance assemblies, and the two balance assemblies are arranged in parallel.
Further, the bearing is a needle bearing.
Furthermore, the first bearing divides the balance shaft into two sections, namely a first shaft section and a second shaft section, wherein one end of the first shaft section is connected with the servo motor, and the second shaft section is connected with the second bearing.
Further, the weight includes a first weight and a second weight, the first weight is disposed on the first shaft section, and the second weight is disposed on the second shaft section.
Further, the envelope diameter of the first weight is larger than the diameter of the first shaft section;
the envelope diameter of the second weight is greater than the diameter of the second shaft section.
Further, an envelope diameter of the first weight is equal to an envelope diameter of the second weight.
The utility model discloses still protected a vehicle, including arbitrary any balanced axle construction.
Because of the technical scheme, the utility model discloses following beneficial effect has:
1) according to the balance shaft structure and the vehicle, the gear transmission or chain transmission mechanism of the balance shaft can be replaced through the servo system, and squeaking and tooth knocking abnormal sounds are eliminated;
2) when the engine is started at low temperature, the balance shaft structure and the vehicle can control the starting time lag of the balance shaft, and the balance shaft structure and the vehicle can be restarted after sufficient lubrication, so that the abrasion of a bearing of the balance shaft is reduced;
3) utility model discloses a balanced axle construction and vehicle, when the engine low-speed operation, the reciprocal inertial force that the unbalance amount arouses is low, can control balanced axle through servo and do not participate in work, reduces the friction work and reduces the engine oil consumption.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a balance shaft structure provided in an embodiment of the present invention;
the balance mechanism comprises a shaft assembly 1, a balance assembly 2, a servo motor 3, a crankshaft 11, a piston 12, a connecting rod 13, a balance shaft 21, a balance block 22, a bearing 23, a first shaft section 211, a second shaft section 212, a first balance block 221, a second balance block 222, a first bearing 231 and a second bearing 232.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
Example one
The first embodiment provides a balance shaft structure, as shown in fig. 1, including: the crankshaft component 1, the balance component 2 and the servo motor 3;
the crankshaft assembly 1 is connected with the balance assembly 2, the balance assembly 2 comprises a balance shaft 21, a balance weight 22 and a bearing 23, the balance weight 22 is arranged on the balance shaft 21, the bearing 23 comprises a first bearing 231 and a second bearing 232, the first bearing 231 is arranged in the middle of the balance shaft 21, one end of the balance shaft 21 is connected with the second bearing 232, the other end of the balance shaft 21 is connected with the servo motor 3, and the servo motor 3 is used for driving the balance assembly 2 to rotate.
Further, the crankshaft assembly 1 includes a crankshaft 11, a plurality of pistons 12, and a plurality of connecting rods 13, wherein the pistons 12 are connected to the crankshaft 11 through the connecting rods 13.
Further, the number of the pistons 12 is 4, and the pistons 12 correspond to the connecting rods 13 one by one.
Further, the method is carried out. Two of the pistons 12 are disposed in the middle of the crankshaft 11, and the other two are disposed at both ends of the crankshaft 11.
Further, the bearing 23 is a needle bearing.
Further, the first bearing 231 divides the balance shaft 21 into two sections, namely a first shaft section 211 and a second shaft section 212, wherein one end of the first shaft section 211 is connected with the servo motor 3, and the second shaft section 212 is connected with the second bearing 232.
Further, the weight 22 includes a first weight 221 and a second weight 222, the first weight 221 is disposed on the first shaft section 211, and the second weight 222 is disposed on the second shaft section 212.
Further, the envelope diameter of the first weight 221 is larger than the diameter of the first shaft section 211;
the envelope diameter of the second weight 222 is larger than the diameter of the second shaft section 212.
Further, the envelope diameter of the first weight 221 is equal to the envelope diameter of the second weight 222.
The embodiment also provides a vehicle comprising the balance shaft structure.
Specifically, when the engine is running, the pistons 12 at both ends move, the crankshaft 11 drives the middle piston 12 and the connecting rod 13 to reciprocate, so that the downward inertial force of the crankshaft assembly 1 parameter, which can cause vibration and noise of the engine, is offset by the centrifugal force generated by the rotation of the first weight 221 and the second weight 222 in the balance assembly 2, and the first weight 221 and the second weight 222 are driven by the rotation of the balance shaft 21, and the rotation of the balance shaft 21 is driven by the servo motor 3.
Specifically, when the engine is started at a low temperature after being stopped for a long time, not only the oil temperature is low but also an oil film is not formed, and the engine is started easily to cause abrasion of the balance shaft 21 and the first and second bearings 231 and 232, so that the servo motor 3 can drive the balance shaft 21 to rotate after the oil is splash-lubricated after the engine is started, and abrasion of a small balance shaft journal and a rolling bearing is reduced.
Specifically, when the engine runs at a low speed, the inertia force is low due to the reciprocating motion generated by the piston 12 and the connecting rod 13, and the balance shaft 21, the first weight 221 and the second weight 222 do not work and do not cause excessive engine vibration, so that the driver and passengers do not subjectively feel the engine vibration; after the rotating speed of the engine is increased, the servo motor 3 drives the balance shaft 21 to rotate, centrifugal force generated by the first balance block 221 and the second balance block 222 counteracts inertia force caused by reciprocating motion generated by the piston 12 and the connecting rod 13 in the middle, and when the balance shaft 21 does not work, friction work of the engine is reduced, and further oil consumption of a vehicle is reduced.
The embodiment provides a balance shaft structure and a vehicle, a gear transmission or a chain transmission mechanism of a balance shaft can be replaced through a servo system, squeaking and tooth knocking abnormal sounds are eliminated, the starting time lag of the balance shaft can be controlled, the balance shaft is started after sufficient lubrication, abrasion of a bearing of the balance shaft is reduced, the balance shaft can be controlled not to participate in work through the servo system, friction work is reduced, and oil consumption of an engine is reduced.
Example two
The second embodiment provides a balance shaft structure, which includes: the crankshaft component 1, the balance component 2 and the servo motor 3;
the crankshaft assembly 1 is connected with the balance assembly 2, the balance assembly 2 comprises a balance shaft 21, a balance weight 22 and a bearing 23, the balance weight 22 is arranged on the balance shaft 21, the bearing 23 comprises a first bearing 231 and a second bearing 232, the first bearing 231 is arranged in the middle of the balance shaft 21, one end of the balance shaft 21 is connected with the second bearing 232, the other end of the balance shaft 21 is connected with the servo motor 3, and the servo motor 3 is used for driving the balance assembly 2 to rotate.
Further, the crankshaft assembly 1 includes a crankshaft 11, a plurality of pistons 12, and a plurality of connecting rods 13, wherein the pistons 12 are connected to the crankshaft 11 through the connecting rods 13.
Further, the number of the pistons 12 is four, and the pistons 12 correspond to the connecting rods 13 one by one.
Further, the method is carried out. Two of the pistons 12 are disposed in the middle of the crankshaft 11, and the other two are disposed at both ends of the crankshaft 11.
Further, the balance shaft structure comprises two balance assemblies 2, the two balance assemblies 2 are arranged in parallel, and inertia force generated by the crankshaft assembly 1 can be counteracted to a greater extent through the two balance assemblies.
Further, the bearing 23 is a needle bearing.
Further, the first bearing 231 divides the balance shaft 21 into two sections, namely a first shaft section 211 and a second shaft section 212, wherein one end of the first shaft section 211 is connected with the servo motor 3, and the second shaft section 212 is connected with the second bearing 232.
Further, the weight 22 includes a first weight 221 and a second weight 222, the first weight 221 is disposed on the first shaft section 211, and the second weight 222 is disposed on the second shaft section 212.
Further, the envelope diameter of the first weight 221 is larger than the diameter of the first shaft section 211;
the envelope diameter of the second weight 222 is larger than the diameter of the second shaft section 212.
Further, the envelope diameter of the first weight 221 is equal to the envelope diameter of the second weight 222.
The embodiment also provides a vehicle comprising the balance shaft structure.
Specifically, when the engine is running, the pistons 12 at both ends move, the crankshaft 11 drives the middle piston 12 and the connecting rod 13 to reciprocate, so that the downward inertial force of the crankshaft assembly 1 parameter, which can cause vibration and noise of the engine, is offset by the centrifugal force generated by the rotation of the first weight 221 and the second weight 222 in the balance assembly 2, and the first weight 221 and the second weight 222 are driven by the rotation of the balance shaft 21, and the rotation of the balance shaft 21 is driven by the servo motor 3.
Specifically, when the engine is started at a low temperature after being stopped for a long time, not only the oil temperature is low but also an oil film is not formed, and the engine is started easily to cause abrasion of the balance shaft 21 and the first and second bearings 231 and 232, so that the servo motor 3 can drive the balance shaft 21 to rotate after the oil is splash-lubricated after the engine is started, and abrasion of a small balance shaft journal and a rolling bearing is reduced.
Specifically, when the engine runs at a low speed, the inertia force is low due to the reciprocating motion generated by the piston 12 and the connecting rod 13, and the balance shaft 21, the first weight 221 and the second weight 222 do not work and do not cause excessive engine vibration, so that the driver and passengers do not subjectively feel the engine vibration; after the rotating speed of the engine is increased, the servo motor 3 drives the balance shaft 21 to rotate, centrifugal force generated by the first balance block 221 and the second balance block 222 counteracts inertia force caused by reciprocating motion generated by the piston 12 and the connecting rod 13 in the middle, and when the balance shaft 21 does not work, friction work of the engine is reduced, and further oil consumption of a vehicle is reduced.
The difference between the second embodiment and the first embodiment is that the number of the balance shaft assemblies is two, so that squeal and abnormal tooth knocking sound can be better eliminated, the same technical effect of the first embodiment can be achieved, the starting time lag of the balance shaft can be controlled, the balance shaft can be restarted after sufficient lubrication, the abrasion of a bearing of the balance shaft is reduced, the balance shaft can be controlled not to participate in working through a servo system, the friction work is reduced, and the oil consumption of an engine is reduced.
The foregoing description has disclosed fully the embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the claims of the present invention. Accordingly, the scope of the claims of the present invention is not to be limited to the specific embodiments described above.
Claims (10)
1. A balance shaft structure, comprising: the crankshaft assembly (1), the balance assembly (2) and the servo motor (3);
the crankshaft assembly (1) is connected with the balance assembly (2), the balance assembly (2) comprises a balance shaft (21), a balance block (22) and a bearing (23), the balance block (22) is arranged on the balance shaft (21), the bearing (23) comprises a first bearing (231) and a second bearing (232), the first bearing (231) is arranged in the middle of the balance shaft (21), one end of the balance shaft (21) is connected with the second bearing (232), the other end of the balance shaft (21) is connected with the servo motor (3), and the servo motor (3) is used for driving the balance assembly (2) to rotate.
2. A balance shaft arrangement according to claim 1, wherein the crankshaft assembly (1) comprises a crankshaft (11), a plurality of pistons (12) and a plurality of connecting rods (13), the pistons (12) being connected to the crankshaft (11) via the connecting rods (13).
3. A balance shaft arrangement according to claim 2, wherein there are four pistons (12), and wherein there is a one-to-one correspondence between the pistons (12) and the connecting rods (13).
4. A balance shaft arrangement according to claim 1, characterized in that the balance shaft arrangement comprises two balance assemblies (2), the two balance assemblies (2) being arranged in parallel.
5. A balance shaft arrangement according to claim 1, wherein the bearing (23) is a needle bearing.
6. A balance shaft arrangement according to claim 1, wherein the first bearing (231) divides the balance shaft (21) into two sections, a first shaft section (211) and a second shaft section (212), respectively, one end of the first shaft section (211) being connected to the servo motor (3) and the second shaft section (212) being connected to the second bearing (232).
7. A balance shaft arrangement according to claim 6, wherein the counterweight (22) comprises a first counterweight (221) and a second counterweight (222), the first counterweight (221) being arranged on the first shaft section (211) and the second counterweight (222) being arranged on the second shaft section (212).
8. A balance shaft arrangement according to claim 7, wherein the envelope diameter of the first weight (221) is larger than the diameter of the first shaft section (211);
the envelope diameter of the second weight (222) is larger than the diameter of the second shaft section (212).
9. A balance shaft arrangement according to claim 8, wherein the envelope diameter of the first weight (221) is equal to the envelope diameter of the second weight (222).
10. A vehicle characterized by comprising the balance shaft structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099299.1U CN212131193U (en) | 2020-01-16 | 2020-01-16 | Balance shaft structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099299.1U CN212131193U (en) | 2020-01-16 | 2020-01-16 | Balance shaft structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131193U true CN212131193U (en) | 2020-12-11 |
Family
ID=73676010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020099299.1U Expired - Fee Related CN212131193U (en) | 2020-01-16 | 2020-01-16 | Balance shaft structure and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131193U (en) |
-
2020
- 2020-01-16 CN CN202020099299.1U patent/CN212131193U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20201211 Termination date: 20220116 |