CN210661928U - Second grade balance mechanism casing and second grade balance mechanism - Google Patents
Second grade balance mechanism casing and second grade balance mechanism Download PDFInfo
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- CN210661928U CN210661928U CN201921000350.2U CN201921000350U CN210661928U CN 210661928 U CN210661928 U CN 210661928U CN 201921000350 U CN201921000350 U CN 201921000350U CN 210661928 U CN210661928 U CN 210661928U
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- balance mechanism
- oil inlet
- housing
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Abstract
The utility model relates to a balance mechanism technical field especially relates to a second grade balance mechanism casing and second grade balance mechanism. This second grade balance mechanism casing includes casing and lower casing, go up the casing with inferior valve body coupling, go up the casing with form two balanced shaft holes after inferior valve body coupling, go up the casing top and casing bottom all is provided with the strengthening rib down. The utility model discloses in be provided with the strengthening rib on last casing and lower casing, can improve the intensity of last casing and lower casing, act as the shock attenuation board of organism, can support lubricated balanced axle again.
Description
Technical Field
The utility model relates to a balance mechanism technical field especially relates to a second grade balance mechanism casing.
Background
The second-stage balance mechanism is a device for balancing the second-order reciprocating inertia force of the engine, generally consists of two unbalanced shafts, the second-order reciprocating inertia force is balanced by utilizing the centrifugal force generated by the unbalance of the shafts, the rotating speed of a driving shaft and a driven shaft is twice of that of a crankshaft of the engine, and due to the assembly requirement, a gear ring of the second-stage balance mechanism needs to be assembled from one end of the crankshaft and is assembled to the specified position of the crankshaft at least through one balance block of the crankshaft. However, the existing secondary balance mechanism may generate large vibration during working, and may cause a problem of reduction of the rigidity of the machine body.
Therefore, a two-stage balance mechanism housing is needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a second grade balance mechanism casing and second grade balance mechanism can improve second grade balance mechanism's rigidity, alleviates second grade balance mechanism's vibrations.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a second grade balance mechanism casing, includes casing and lower casing, go up the casing with inferior valve body coupling, go up the casing with form two balanced shaft holes behind the inferior valve body coupling, go up the casing top and the casing bottom all is provided with the strengthening rib down.
As a preferred technical scheme of the shell of the two-stage balance mechanism, a lubricating oil passage is arranged on the upper shell and is communicated with the two balance shaft holes.
As an optimal technical scheme of above-mentioned second grade balance mechanism casing, the lubricated oil duct includes first oil feed passageway, second oil feed passageway, third oil feed passageway and fourth oil feed passageway, first oil feed passageway, second oil feed passageway, third oil feed passageway and fourth oil feed passageway communicate along the oil feed direction in proper order, the fourth oil feed passageway respectively with two balanced shaft hole intercommunication.
As an optimal technical scheme of the two-stage balance mechanism shell, the fourth oil inlet channel comprises an upper oil inlet groove and a lower oil inlet groove which are buckled relatively, the upper oil inlet groove is formed in the upper shell, and the lower oil inlet groove is formed in the lower shell.
As an optimal technical scheme of the shell of the two-stage balance mechanism, the upper shell is further provided with an oil baffle plate, the oil baffle plate is arranged right above the balance shaft hole, and the oil baffle plate is connected with the side wall of the upper shell.
As a preferable technical scheme of the second-stage balance mechanism shell, the oil baffle plate is provided with a lightening hole.
As a preferable technical solution of the above two-stage balance mechanism housing, the upper housing and the lower housing are connected by a bolt.
As an optimal technical scheme of the shell of the two-stage balance mechanism, an oil return hole is formed in the bottom of the lower shell and communicated with the balance shaft hole.
As a preferable technical solution of the above two-stage balance mechanism housing, the upper housing and the lower housing are both of die-cast aluminum structure.
The utility model also provides a second grade balance mechanism, including the aforesaid second grade balance mechanism casing.
The utility model discloses beneficial effect:
the utility model discloses in be provided with the strengthening rib on last casing and lower casing, can improve the intensity of last casing and lower casing, act as the shock attenuation board of organism, can support lubricated balanced axle again.
The upper shell is provided with the lubricating oil channel, so that lubricating oil can flow into the upper shell from the machine body, the lubricating oil channel is communicated with the balance shaft hole, lubricating oil is provided for the balance shaft, the purpose that the lubricating oil of the machine body automatically flows into the shell is achieved, and the lubricating oil does not need to be independently fed to the secondary balance mechanism.
Drawings
Fig. 1 is a schematic structural diagram of a housing of a secondary balancing mechanism provided in an embodiment of the present invention;
fig. 2 is a rear view of a housing of a two-stage balance mechanism according to an embodiment of the present invention;
fig. 3 is a top view of a housing of a secondary balancing mechanism according to an embodiment of the present invention;
3 fig. 3 4 3 is 3 a 3 cross 3- 3 sectional 3 view 3 at 3 a 3- 3 a 3 in 3 fig. 3 3 3. 3
In the figure:
1. an upper housing; 11. a first oil inlet passage; 12. a second oil inlet passage; 13. a third oil inlet passage; 14. an upper oil inlet groove; 15. a bolt hole seat; 16. a first bolt hole;
2. a lower housing; 21. a lower oil inlet groove; 22. an oil return hole; 23. a second bolt hole;
3. reinforcing ribs;
4. a balancing shaft hole;
5. an oil baffle plate; 51. lightening holes;
6. and (5) oil blocking.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and 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" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides a second grade balance mechanism casing, and this casing can guarantee that it has sufficient rigidity by itself, improves organism shock-absorbing capacity.
Fig. 1 is a schematic structural diagram of a second-stage balance mechanism casing provided by the embodiment of the present invention, and fig. 2 is a rear view of the second-stage balance mechanism casing provided by the embodiment of the present invention. As shown in fig. 1 and 2, the secondary balance mechanism casing includes an upper casing 1 and a lower casing 2, wherein the upper casing 1 and the lower casing 2 are both provided with bolt holes, that is, the upper casing 1 and the lower casing 2 are connected by bolts, two balance shaft holes 4 are formed after the upper casing 1 and the lower casing 2 are connected for the balance shaft to be arranged therein, and the upper casing 1 and the lower casing 2 are both provided with reinforcing ribs 3.
As shown in fig. 1, further, a bolt hole seat 15 and a reinforcing rib 3 are arranged on the upper shell 1, the bolt hole seat 15 is provided with a first bolt hole 16, the first bolt hole 16 is arranged to connect the whole second-stage balance mechanism shell with the machine body, the number of the first bolt holes 16 is 10, and two ends of the reinforcing rib 3 are respectively connected with the bolt hole seats 15, so that the upper shell 1 is ensured to have enough rigidity after being connected through bolts, an oil baffle plate 5 is arranged between adjacent reinforcing ribs 3 to prevent lubricating oil from splashing out of the shell, the oil baffle plate 5 is arranged right above the balance shaft hole 4, the oil baffle plate 5 is connected with the side wall of the upper shell 1, and a lightening hole 51 is arranged on the oil baffle plate 5, so that the interference of a crank connecting rod can be avoided while the weight of the second-stage balance mechanism shell is lightened, and the normal rotation of the balance shaft. The lightening hole 51 is arranged in the middle of the oil baffle plate 5, so that lubricating oil at the inclined splashing part is directly shielded in the rotating process of the balance shaft, and the oil consumption of the lubricating oil is reduced. The shape of the lightening hole 51 is limited to a cross shape and a convex shape in the present embodiment, and may have other shapes in other embodiments.
As shown in fig. 2, the lower case 2 is provided with second bolt holes 23, the second bolt holes 23 provided in the lower case 2 correspond to third bolt holes (not shown) provided in the upper case 1 one by one, so as to ensure stable connection between the upper case 1 and the lower case 2, wherein the number of the second bolt holes 23 of the lower case 2 is 12, each 4 second bolt holes 23 are in one row, and a reinforcing rib 3 is provided between two second bolt holes 23 located in the middle of each row, and this arrangement is also in order to ensure that the lower case 2 has sufficient rigidity to cope with the adverse effect caused by vibration, thereby avoiding crushing of the lower case 2. In order to avoid the situation that the oil return is not smooth due to the existence of more engine oil in the housing, in this embodiment, the bottom of the lower housing 2 is provided with an oil return hole 22, and the oil return hole 22 is communicated with the balance shaft hole 4. The number of the oil return holes 22 is set according to the requirement, the number of the oil return holes 22 below each balance shaft hole 4 can be the same or different, in this embodiment, three oil return holes 22 are provided below one of the balance shaft holes 4, and two oil return holes 22 are provided below the other balance shaft hole 4.
Fig. 3 is a top view of a housing of a secondary balancing mechanism according to an embodiment of the present invention; 3 fig. 3 4 3 is 3 a 3 cross 3- 3 sectional 3 view 3 at 3 a 3- 3 a 3 in 3 fig. 3 3 3. 3 As shown in fig. 3 and 4, in order to enable the lubricating oil of the engine body to automatically flow into the housing, the upper housing 1 is preferably provided with a lubricating oil passage, and the lubricating oil passage is communicated with the two balance shaft holes 4. Specifically, the lubricating oil channel comprises a first oil inlet channel 11, a second oil inlet channel 12, a third oil inlet channel 13 and a fourth oil inlet channel, the first oil inlet channel 11, the second oil inlet channel 12, the third oil inlet channel 13 and the fourth oil inlet channel are sequentially communicated along an oil inlet direction, and the fourth oil inlet channel is respectively communicated with the two balance shaft holes 4.
In order to make lubricating oil from last casing 1 and lower casing 2 junction get into balanced shaft hole 4, in this embodiment, as preferred, fourth oil feed passageway includes last oil feed groove 14 and lower oil feed groove 21 of relative lock, wherein go up and be provided with last oil feed groove 14 on the casing 1, casing 2 is provided with oil feed groove 21 down, go up casing 1 and casing 2 connection back last oil feed groove 14 and lower oil feed groove 21 concatenation form fourth oil feed passageway, fourth oil feed passageway is located between two balanced shaft holes 4, guarantee that lubricating oil can enter into balanced shaft hole 4 smoothly. First oil feed passageway 11 and second oil feed passageway 12 communicate, when processing first oil feed passageway 11 and second oil feed passageway 12, carry out above-mentioned first oil feed passageway 11 and second oil feed passageway 12 of machine tooling respectively from the adjacent both sides of upper casing 1, be provided with oil blanket 6 in the one end of second oil feed passageway 12, oil blanket 6 can prevent that lubricating oil from flowing out from second oil feed passageway 12, thereby make lubricating oil enter into third oil feed passageway 13 in, third oil feed passageway 13 is in fact with last oil feed groove 14 intercommunication, after upper casing 1 and lower casing 2 are connected, the fourth oil feed passageway that last oil feed groove 14 and lower oil feed groove 21 formed then communicates with third oil feed passageway 13.
In order to reduce the overall weight of the secondary balance mechanism housing while enhancing the rigidity of the housing, in the present embodiment, further, the upper housing 1 and the lower housing 2 are both of die-cast aluminum structure. Go up casing 1 and casing 2 and adopt die-casting aluminium to make down, guaranteeing under the big condition of whole rigidity, whole weight also becomes light, can be used as the shock attenuation board of organism, has can support, lubricated balanced axle.
The second-level balance mechanism shell provided in the embodiment can serve as a damping plate of the engine body, ensures that the engine body has enough rigidity, can support and lubricate the balance shaft, is compact in structure and high in reliability, and has better NVH (noise, vibration and harshness) performance.
This embodiment still provides a second grade balance mechanism, and it includes the embodiment of the utility model provides an in second grade balance mechanism casing. The two-stage balance mechanism is light in overall weight, high in rigidity and good in reliability, and has good NVH (noise, vibration and harshness) performance.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a second grade balance mechanism casing, includes casing (1) and casing (2) down, go up casing (1) with casing (2) are connected down and are formed two balanced shaft holes (4), its characterized in that, go up casing (1) top and casing (2) bottom all is provided with strengthening rib (3) down.
2. The secondary balance mechanism housing according to claim 1, wherein an oil passage is provided on the upper housing (1), and the oil passage communicates with the two balance shaft holes (4).
3. The two-stage balance mechanism shell according to claim 2, wherein the lubricating oil passage comprises a first oil inlet passage (11), a second oil inlet passage (12), a third oil inlet passage (13) and a fourth oil inlet passage, the first oil inlet passage (11), the second oil inlet passage (12), the third oil inlet passage (13) and the fourth oil inlet passage are sequentially communicated along an oil inlet direction, and the fourth oil inlet passage is respectively communicated with the two balance shaft holes (4).
4. The two-stage balance mechanism casing according to claim 3, wherein the fourth oil inlet channel comprises an upper oil inlet groove (14) and a lower oil inlet groove (21) which are oppositely buckled, the upper oil inlet groove (14) is arranged on the upper casing (1), and the lower oil inlet groove (21) is arranged on the lower casing (2).
5. The secondary balance mechanism shell according to claim 1, wherein the upper shell (1) is further provided with an oil baffle plate (5), the oil baffle plate (5) is arranged right above the balance shaft hole (4), and the oil baffle plate (5) is connected with the side wall of the upper shell (1).
6. The secondary balance mechanism housing of claim 5 wherein the oil deflector (5) is provided with lightening holes (51).
7. The secondary balance mechanism housing of claim 1 wherein the upper housing (1) and the lower housing (2) are bolted.
8. The two-stage balance mechanism housing according to claim 1, wherein an oil return hole (22) is formed at the bottom of the lower housing (2), and the oil return hole (22) is communicated with the balance shaft hole (4).
9. The secondary balance mechanism housing according to any of claims 1 to 8 wherein the upper housing (1) and the lower housing (2) are both die cast aluminum structures.
10. A secondary balancing mechanism comprising a secondary balancing mechanism housing according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000350.2U CN210661928U (en) | 2019-06-29 | 2019-06-29 | Second grade balance mechanism casing and second grade balance mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000350.2U CN210661928U (en) | 2019-06-29 | 2019-06-29 | Second grade balance mechanism casing and second grade balance mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661928U true CN210661928U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921000350.2U Active CN210661928U (en) | 2019-06-29 | 2019-06-29 | Second grade balance mechanism casing and second grade balance mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210661928U (en) |
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2019
- 2019-06-29 CN CN201921000350.2U patent/CN210661928U/en active Active
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