CN212986447U - Flywheel housing and engine system - Google Patents
Flywheel housing and engine system Download PDFInfo
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- CN212986447U CN212986447U CN202021600955.8U CN202021600955U CN212986447U CN 212986447 U CN212986447 U CN 212986447U CN 202021600955 U CN202021600955 U CN 202021600955U CN 212986447 U CN212986447 U CN 212986447U
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- flywheel housing
- bolt holes
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Abstract
The utility model provides a flywheel housing and engine system, the utility model provides a flywheel housing includes the bottom plate, and the bottom plate is provided with the bent axle mounting hole that is used for installing the bent axle, and the both sides of bent axle mounting hole set up a plurality of first bolt holes that are used for being connected with the organism of engine respectively, and a plurality of first bolt holes that each side of bent axle mounting hole set up all lie in same straight line; a plurality of grooves are formed in the position, close to the first bolt holes, of the bottom plate, connecting lines of two adjacent first bolt holes form a side wall of one groove, and the two adjacent grooves are separated through the first reinforcing ribs. The utility model also provides an engine system, include engine organism, gearbox and install the above-mentioned bell housing between engine organism and gearbox. The utility model provides a strength of the first bolt hole department of bell housing is higher, is difficult for taking place to warp when receiving friction or shearing force.
Description
Technical Field
The embodiment of the utility model provides a relate to the engine technology, especially relate to a bell housing and engine system.
Background
The flywheel housing is used as an important part of an engine, is used for connecting the engine and a gearbox, and plays a role in connecting a machine body, protection and a carrier.
In the existing flywheel casing, a bolt hole is formed in a bottom plate of the flywheel casing, and in the process of installing the flywheel casing, a bolt penetrates through the bolt hole and then is connected with a machine body of an engine. So that the flywheel housing can be fixed on the engine body of the engine.
However, due to the vibration of the engine, the bolt holes and the bolts of the bottom plate of the flywheel casing are subjected to friction and shearing action for a long time, and after the bolt holes and the bolts of the bottom plate of the flywheel casing are used for a period of time, the bolt holes of the bottom plate of the flywheel casing are easily deformed.
SUMMERY OF THE UTILITY MODEL
The problem that bolt holes of a bottom plate of a flywheel housing are easy to deform after the flywheel housing is used for a period of time is solved.
According to the utility model discloses an aspect provides a flywheel shell, include:
the engine comprises a base plate, a crankshaft mounting hole and a plurality of first bolt holes, wherein the crankshaft mounting hole is used for mounting a crankshaft, the two sides of the crankshaft mounting hole are respectively provided with the plurality of first bolt holes used for being connected with an engine body of an engine, and the plurality of first bolt holes arranged on each side of the crankshaft mounting hole are all positioned on the same straight line; a plurality of grooves are formed in the position, close to the first bolt holes, of the bottom plate, connecting lines of two adjacent first bolt holes form a side wall of one groove, and the two adjacent grooves are separated through first reinforcing ribs.
In an alternative implementation, the recess in the base plate is formed by stamping.
In an optional implementation manner, a blind hole is formed in one side, facing the engine body, of the bottom plate, and the blind hole is located at the intersection of the first reinforcing ribs.
In an alternative implementation manner, the bottom wall of the groove is arranged obliquely, and the side, close to the first bolt hole, of the bottom wall of the groove is lower than the side, far away from the first bolt hole, of the bottom wall of the groove.
In an optional implementation manner, the transmission further comprises a side surrounding wall, wherein the side surrounding wall extends upwards from the edge of the base plate, the side surrounding wall is provided with a plurality of second bolt holes parallel to the side surrounding wall along the circumferential direction of the side surrounding wall, and the second bolt holes are used for installing the transmission through bolts;
and the wall thickness of the second bolt hole arranged on the side surrounding wall is greater than that of other parts of the side surrounding wall.
In an optional implementation mode, the surface of side leg is equipped with a plurality of fixed parts, the fixed part be used for with the flywheel casing is fixed in the frame, and is a plurality of the fixed part is followed the circumference interval of side leg sets up, the terminal surface of fixed part is the rectangle, the apex angle of rectangle respectively is provided with a third bolt hole, the third bolt hole that the apex angle of rectangle set up is connected through two criss-cross second strengthening ribs.
In an alternative implementation, two of the second reinforcing bead crossing portions are provided as recesses in the direction of the side peripheral wall.
In an alternative implementation, the recess is spherically curved in shape.
In an alternative implementation mode, the wall thickness of the second bolt hole arranged on the side surrounding wall is 10-20mm, and the thickness of the other part of the side surrounding wall is 6-9 mm.
According to the utility model discloses on the other hand, provide an engine system, including engine organism, gearbox and install in the engine organism with between the gearbox as above the bell housing.
The flywheel housing comprises a bottom plate, wherein the bottom plate is provided with a crankshaft mounting hole for mounting a crankshaft, a plurality of first bolt holes for connecting with an engine body of an engine are respectively arranged on two sides of the crankshaft mounting hole, and the plurality of first bolt holes arranged on each side of the crankshaft mounting hole are all positioned on the same straight line; a plurality of grooves are formed in the position, close to the first bolt holes, of the bottom plate, connecting lines of two adjacent first bolt holes form a side wall of one groove, and the two adjacent grooves are separated through the first reinforcing ribs. Like this, use the bolt to pass first bolt hole and be connected the back with the organism of engine, because the position of first bolt hole is formed with a plurality of recesses, the lateral wall of two adjacent first bolt hole formation recesses to use two adjacent recesses of first strengthening rib separation, compare in prior art and be about to the bolt hole setting on planar bottom plate, the intensity of bolt hole position department is higher, is more difficult for taking place to warp.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural view of a flywheel housing according to a first embodiment of the present invention;
fig. 2 is a schematic back structure view of a flywheel housing according to a first embodiment of the present invention;
FIG. 3 is a schematic view of the flywheel housing of FIG. 1 from another perspective;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
fig. 5 is a schematic structural view of a fixing portion according to an embodiment of the present invention.
Description of reference numerals:
1-a bottom plate;
11-crankshaft mounting holes;
12-a first bolt hole;
13-a groove;
14-a first reinforcing rib;
15-blind holes;
2-side enclosure wall;
21-a second bolt hole;
3-a fixed part;
31-third bolt hole;
32-a second reinforcing rib;
33-concave portion.
Detailed Description
First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be modified as needed by those skilled in the art to suit particular applications.
Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the prior art, the bottom plate of the flywheel housing is provided with bolt holes, the flywheel housing is connected with the engine body of the engine through bolts, and particularly, in the assembling process of the flywheel housing, the bolts penetrate through the bolt holes and then are connected with the engine body of the engine to fix the flywheel housing and the engine body of the engine.
However, most of the bottom plates of the flywheel housings are of planar structures, the strength of the bottom plates is poor, after the flywheel housings are fixed with the engine body, due to vibration of the engine, bolt holes of the bottom plates of the flywheel housings and bolts are subjected to friction and shearing effects for a long time, and after the engine is used for a period of time, the bolt holes of the bottom plates of the flywheel housings are easily deformed.
Through thinking repeatedly and verifying, the inventor finds that if set the bottom plate of bell housing to the structure that has the recess, will be used for the bolt hole setting of fixed bell housing and engine organism at the lateral wall of recess, uses the strengthening rib to connect the bolt hole simultaneously, makes the effort that single bolt hole received can transmit each other. Therefore, compared with a flat bottom plate of the flywheel casing in the prior art, the strength of the bolt hole of the bottom plate is increased, and the bolt hole of the bottom plate of the flywheel casing is not easy to deform in the long-term use process of the engine.
In view of this, the inventor designs a flywheel casing, which includes a bottom plate, and the bottom plate is provided with a crankshaft mounting hole for installing the crankshaft, and the both sides of crankshaft mounting hole set up a plurality of first bolt holes respectively that are used for being connected with the organism of engine, and a plurality of first bolt holes that each side of crankshaft mounting hole set up all lie in same straight line. A plurality of grooves are formed in the position, close to the first bolt holes, of the bottom plate, connecting lines of two adjacent first bolt holes form a side wall of one groove, and the two adjacent grooves are separated through the first reinforcing ribs. Like this, with first bolt hole setting at the lateral wall of recess, use two adjacent recesses of first strengthening rib separation, every first bolt hole all has the first strengthening rib of being connected with it promptly. The structural strength of the first bolt hole is improved, and the engine is not easy to deform in the long-term use process.
Example one
Fig. 1 is a schematic structural diagram of a flywheel housing provided in this embodiment. As shown in FIG. 1, the flywheel housing provided by the present embodiment comprises a bottom plate 1 and a side enclosure wall 2, and the bottom plate 1 and the side enclosure wall 2 can be connected by welding or can be formed into a single piece by casting.
With continued reference to fig. 1, it can be understood by those skilled in the art that the base plate 1 is used for connecting with the engine body, specifically, the middle of the base plate 1 is provided with a crankshaft mounting hole 11 for mounting a crankshaft, specifically, the crankshaft of the engine can pass through the crankshaft mounting hole 11, and the flywheel is connected to the side of the base plate 1 far from the engine. One possible implementation is that the crankshaft mounting hole 11 is formed as a circular hole, and a person skilled in the art can machine the crankshaft mounting hole 11 on the bottom plate 1 by using a rotary cutter.
As shown in fig. 1, a plurality of first bolt holes 12 are respectively formed on the left and right sides of the crankshaft mounting hole 11, the first bolt holes 12 are used for connecting the engine body of the engine, specifically, when the engine body and the flywheel housing are connected, bolts can be used to pass through the first bolt holes 12 and then be connected with the engine body of the engine, and the flywheel housing and the engine body can be connected by tightening the bolts.
As shown in fig. 1, it is easily understood that the number of the first bolt holes 12 is not limited, and one possible implementation is that three first bolt holes 12 are provided on each side of the crankshaft mounting hole 11, and the three first bolt holes 12 are located on a vertical straight line. Of course, those skilled in the art can also set other numbers of first bolt holes 12 and arrangements between the first bolt holes 12 according to the engine body model.
Fig. 1 shows that a plurality of grooves 13 are formed in the bottom plate 1 at positions close to the first bolt holes 12, that is, the bottom plate 1 is provided with a plurality of grooves 13 on the left and right sides of the crankshaft mounting hole 11, respectively. The line connecting two adjacent first bolt holes 12 forms the side wall of the groove 13, and the two adjacent grooves 13 are separated by the first reinforcing rib 14.
For example, the groove 13 on the bottom plate 1 may be formed by stamping, and the groove 13 is machined by stamping, which is easy to machine. Other ways of machining the grooves 13 may be used by those skilled in the art, for example, the grooves 13 may be formed on the left and right sides of the crankshaft mounting hole 11 after the bottom plate 1 is cast by the design of the casting mold.
In this embodiment, a plurality of grooves 13 are respectively formed in the left side and the right side of the crankshaft mounting hole 11 on the bottom plate 1, the adjacent two grooves 13 are separated by the first reinforcing rib 14, and the concave structure, i.e., the grooves 13 are less prone to deformation when the first bolt hole 12 is subjected to friction or shearing. In addition, the grooves 13 are formed in the bottom plate 1, so that the weight of the flywheel housing can be reduced, the light weight degree of the engine is higher, and the power output by the engine can generate higher acceleration.
One possible implementation is that one end of the first reinforcing bead 14 is connected to the first bolt hole 12, and the other ends of the plurality of first reinforcing beads 14 intersect at one point. It will be appreciated by those skilled in the art that the first bolt hole 12 located lowermost is subjected to greater loads during engine vibration. By arranging the other ends of the first reinforcing beads 14 to intersect at one point, part of the load received by the first bolt hole 12 located lowermost can be transmitted to the two first bolt holes 12 located upper through the first reinforcing beads 14, the load received by the first bolt hole 12 located lowermost can be dispersed, and the structural strength of the first bolt hole 12, particularly the first bolt hole 12 located lowermost can be increased by arranging the bottom plate 1 of the existing plane to be arranged in a structure similar to a "duck's leg" shape at the first bolt hole 12.
Here, the side of the bottom plate 1 of the flywheel housing facing the engine body is defined as the back of the flywheel housing, and fig. 2 is a schematic structural diagram of the back of the flywheel housing provided in this embodiment. As shown in fig. 1-2, preferably, the back portion and the side facing the engine block of the bottom plate 1 are provided with blind holes 15, and specifically, the blind holes 15 are provided at the intersections of the plurality of first reinforcing ribs 14. The blind hole 15 is a hole provided in the base plate 1, which does not penetrate the base plate 1, as will be understood by those skilled in the art.
By providing a blind hole 15 at the back of the base plate 1 at the intersection of the first plurality of ribs 14, the blind hole 15 can act as a "tie point". The structural strength at the intersection of the plurality of first reinforcing beads 14 is reinforced so that it is not easily deformed when it receives a load.
Fig. 3 is a schematic view of the flywheel housing shown in fig. 1 from another perspective, and fig. 4 is a cross-sectional view taken along the direction a-a in fig. 3. As shown in fig. 3 to 4, one possible way to achieve this is to arrange the bottom wall of the groove 13 obliquely, specifically, the lower the bottom wall of the groove 13 is near the middle area in fig. 4, i.e., the lower the bottom wall of the groove 13 is near the first bolt hole 12 than the bottom wall of the groove 13 is far from the first bolt hole 12.
Through the slope setting of the diapire with recess 13, its intensity is higher compared with straight recess 13 diapire, is difficult for taking place the deformation when bearing load.
As shown in fig. 1, the side wall 2 is formed in a tubular structure having an annular radial cross section. The side enclosure walls 2 extend upwardly from the edge of the base plate 1 at the side of the base plate 1 remote from the engine block. The side surrounding wall 2 is provided with a plurality of second bolt holes 21 parallel to the side surrounding wall 2 along its circumference, i.e. the axial direction of the second bolt holes 21 is perpendicular to the bottom plate 1. The second bolt hole 21 is used for mounting a transmission by a bolt, and it can be understood by those skilled in the art that an end face of the second bolt hole 21 and an end face of the side surrounding wall 2 are a stop face.
It will be readily understood that the number of the second bolt holes 21 is not limited, and the size of the interval between adjacent second bolt holes 21 may be equal or different. Those skilled in the art can set the type and specification of the transmission to be fixed.
With continued reference to fig. 1, the wall thickness of the side surrounding wall 2 where the second bolt holes 21 are provided is greater than the wall thickness of the other portions of the side surrounding wall 2. Illustratively, the wall thickness of other parts of the side surrounding wall 2 can be set within the range of 6-9mm, the wall thickness at the second bolt hole 21 arranged on the side surrounding wall 2 can be set within the range of 10-20mm, and the specific thickness of the side surrounding wall 2 can be set by a person skilled in the art according to the actual requirement.
As can be understood by those skilled in the art, the second bolt hole 21 is used for connecting with a transmission, the other parts of the side surrounding wall 2 can increase the structural strength of the second bolt hole 21, the wall thickness of the other parts of the side surrounding wall 2 is set to be smaller than that of the second bolt hole 21, the weight of the flywheel housing can be reduced under the condition that the strength of the second bolt hole 21 is not reduced, and the light weight degree of the engine is further improved.
Fig. 5 is a schematic structural diagram of the fixing portion 3 provided in this embodiment. As shown in fig. 1 and 5, the outer surface of the side surrounding wall 2 is provided with a plurality of fixing portions 3, for example, four fixing portions 3 are provided, and four fixing portions 3 are respectively located at four corners of the side surface of the flywheel housing, that is, four fixing portions 3 are provided at intervals along the circumferential direction of the side surrounding wall 2. It will be readily understood that the number of fixing portions 3 is also non-limiting, for example, a person skilled in the art may also provide two fixing portions 3, the two fixing portions 3 being respectively located at the upper left and right sides of the side wall 2.
The fixing portion 3 is used for fixing the flywheel housing to the frame, specifically, the end face of the fixing portion 3 is formed into a rectangle, and the top corners of the rectangle are respectively provided with one third bolt hole 31. When the flywheel is installed, the flywheel shell penetrates through the frame and then is connected with the fixing part 3, so that the flywheel shell can be connected with the frame, and further the engine can be connected with the frame.
As shown in fig. 5, the third bolt holes 31 provided at the corners of the rectangle are connected by two second reinforcing ribs 32 crossing each other. The structural strength of the third bolt hole 31 can be increased by providing two intersecting second reinforcing ribs 32, so that the third bolt hole 31 is less likely to be deformed.
As shown in fig. 1 and 5, it is preferable that the intersecting portion of the two second reinforcing ribs 32 is provided with a recessed portion 33 recessed toward the side peripheral wall 2, and it is worth mentioning that the recessed portion 33 is a region recessed toward the side peripheral wall 2 from the intersecting portion of the two second reinforcing ribs 32.
The recessed part 33 is arranged at the intersection part of the two reinforcing ribs, so that the weight of the flywheel housing is reduced on the premise of ensuring the strength of the third bolt hole 31, and the lightweight degree of the engine is improved.
Further, the shape of the recess 33 is set to a spherically curved surface. By providing the recessed portion 33 with a spherically curved surface, the second bead 32 has no corner, i.e., stress concentration region, and the strength of the third bolt hole 31 can be secured to the maximum extent while the weight of the engine is increased.
Example two
On the basis of the first embodiment, the embodiment further provides an engine system, which comprises an engine body, a gearbox and a flywheel housing installed between the engine body and the gearbox.
The flywheel housing in this embodiment has the same structure as the flywheel housing provided in the first embodiment, and can bring about the same or similar technical effects, and details are not repeated herein, and specific reference may be made to the description of the above embodiments.
In the description of the present invention, it is to be understood that the terms "top," "bottom," "upper," "lower" (if present), and the like, are used in the orientation or positional relationship shown in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so 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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The terms "first" and "second" in the description and claims of the present application and the description of the above-described figures 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 application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A flywheel housing comprising:
the engine comprises a base plate, a crankshaft mounting hole and a plurality of first bolt holes, wherein the crankshaft mounting hole is used for mounting a crankshaft, the two sides of the crankshaft mounting hole are respectively provided with the plurality of first bolt holes used for being connected with an engine body of an engine, and the plurality of first bolt holes arranged on each side of the crankshaft mounting hole are all positioned on the same straight line; a plurality of grooves are formed in the position, close to the first bolt holes, of the bottom plate, connecting lines of two adjacent first bolt holes form a side wall of one groove, and the two adjacent grooves are separated through first reinforcing ribs.
2. The flywheel housing of claim 1 wherein the recess in the base plate is formed by stamping.
3. The flywheel housing according to claim 1, wherein said bottom plate is provided with a blind hole on a side facing said engine block, said blind hole being located where said first ribs intersect.
4. The flywheel housing according to claim 1, wherein the bottom wall of the groove is inclined, and the side of the bottom wall of the groove close to the first bolt hole is lower than the side far away from the first bolt hole.
5. The flywheel housing as claimed in any one of claims 1 to 4, further comprising a side enclosure wall extending upwardly from the edge of the base plate, the side enclosure wall being provided along its circumference with a plurality of second bolt holes parallel to the side enclosure wall, the second bolt holes being used for mounting a transmission by bolts;
and the wall thickness of the second bolt hole arranged on the side surrounding wall is greater than that of other parts of the side surrounding wall.
6. The flywheel housing as claimed in claim 5, wherein the outer surface of the side walls is provided with a plurality of fixing portions for fixing the flywheel housing to a vehicle frame, the plurality of fixing portions are arranged at intervals along the circumferential direction of the side walls, the end surfaces of the fixing portions are rectangular, the corners of the rectangle are respectively provided with a third bolt hole, and the third bolt holes arranged at the corners of the rectangle are connected through two second crossed reinforcing ribs.
7. The flywheel housing according to claim 6, wherein two of said second rib intersections are provided as recesses in the direction of said side peripheral wall.
8. The flywheel housing of claim 7 wherein the recess is spherically curved in shape.
9. The flywheel housing according to claim 5, wherein the wall thickness of the second bolt hole provided on the side enclosure wall is 10-20mm, and the thickness of the other part of the side enclosure wall is 6-9 mm.
10. An engine system comprising an engine block, a gearbox and a flywheel housing as claimed in any one of claims 1 to 9 mounted between the engine block and the gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600955.8U CN212986447U (en) | 2020-08-04 | 2020-08-04 | Flywheel housing and engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600955.8U CN212986447U (en) | 2020-08-04 | 2020-08-04 | Flywheel housing and engine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212986447U true CN212986447U (en) | 2021-04-16 |
Family
ID=75431286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021600955.8U Active CN212986447U (en) | 2020-08-04 | 2020-08-04 | Flywheel housing and engine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212986447U (en) |
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2020
- 2020-08-04 CN CN202021600955.8U patent/CN212986447U/en active Active
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