CN202645766U - Engine lower body structure and engine with same - Google Patents
Engine lower body structure and engine with same Download PDFInfo
- Publication number
- CN202645766U CN202645766U CN 201220155909 CN201220155909U CN202645766U CN 202645766 U CN202645766 U CN 202645766U CN 201220155909 CN201220155909 CN 201220155909 CN 201220155909 U CN201220155909 U CN 201220155909U CN 202645766 U CN202645766 U CN 202645766U
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- lower body
- stiffening rib
- bolt column
- malformation
- place
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Abstract
The utility model provides a lower body structure, which comprises a crankcase providing a crankshaft rotation space and a mounting part located on the back of the crankcase and used for connecting with an oil sump, wherein the crankcase comprises an arched wall, and the side face of the arched wall facing a crankshaft is a curved surface; and the mounting part is arranged on the arched wall; reinforced ribs are arranged between the mounting part and the arched wall; the strengthening ribs are connected with a structural deformation section of the mounting part. Through providing the strengthening ribs at the structural deformation section of the mounting part, the strength and rigidity of the arched wall and the structural deformation section are improved; by eliminating a balance shaft structure, the lower body is simple in structure, and the weight is lowered; and the strengthening ribs can also play the function of fixing a bolt column, so that the integral structure is beneficial to product molding. In addition, through additionally providing the strengthening ribs at the inner side of the mounting part, the engine oil in the oil sump can also be prevented from splashing, and the strength and rigidity of the overall structure are enhanced.
Description
Technical field
The motor that the utility model relates to a kind of motor lower body structure and has this structure.
Background technique
Large-duty engine generally all needs lower body to come the participation structure design, generally adopts cylinder block and lower body jointly to form crankcase, and the crankshaft rotating space is provided.Like this, the overall structure reliability of motor is also strengthened.
In the prior art, large discharge capacity requires high-revolving crankshaft operation, because can cause the noise and vibration of motor, in order to overcome noise and vibration, namely arrange balance shaft structure towards the body of a side of oil sump at the back side of the crankcase of lower body, but in real work, trunnion shaft just plays a role when needing high rotating speed, so in the lower motor of speed of crankshaft, trunnion shaft the noise reduction and not obvious of shaking falls, and increased the assembling part of motor, reduced the manufacturing efficiency of motor, and in engine working process, owing to be heated and the impact such as pressure of explosion, the little distortion of body can occur, crankcase part particularly, not only can cause serious damage to motor, and balance shaft mechanism consumption in operation engine power, the loss of motor output performance caused.
Summary of the invention
A purpose of the present utility model is to overcome the motor lower body complex structure deficiency poor to the adaptive capacity of little distortion in the prior art, provide a kind of simple in structure and to the adaptive capacity of little distortion motor lower body structure preferably, another purpose of the utility model provides a kind of motor that comprises this structure.
A kind of motor lower body structure, comprise and the crankcase in crankshaft rotating space section is provided and is positioned at the crankcase section back side for the assembly department that is connected with oil sump, described crankcase section comprises be used to the arcuate walls that the crankshaft rotating space is provided, described arcuate walls is curved surface towards the side of bent axle, described assembly department comprises the lower body sidewall that oil sump is installed, on the side that the described arcuate walls that is positioned at described lower body sidewall arches upward, a side that arches upward in described arcuate walls also is provided with reinforcing rib structure, the lower body sidewall of described reinforcing rib structure along the horizontal direction of lower body to the arcuate walls both sides extends, described stiffening rib is platy structure, described stiffening rib and arcuate walls Surface Vertical.
Further, described reinforcing rib structure comprises six stiffening ribs, edge in close oil pump one side of arcuate walls is provided with the first stiffening rib, vertically is interval with successively the second stiffening rib, the 3rd stiffening rib, the 4th stiffening rib, the 5th stiffening rib and the 6th stiffening rib by lower body.
Further, the interval between the adjacent stiffening rib is increased to the back-end gradually by the front end of lower body.
Further, described the first stiffening rib, the 4th stiffening rib, the 5th stiffening rib and the 6th stiffening rib are connected with malformation place of lower body sidewall respectively.
Further, malformation place of described lower body sidewall comprises the first malformation place, the second malformation place, the 3rd malformation place and the 4th malformation place, described the first stiffening rib is connected with the first malformation place, described the 4th stiffening rib is connected with the second malformation place, the 5th stiffening rib is connected with the 3rd malformation place, and the 6th stiffening rib is connected with the 4th malformation place.
Further, also comprise the bolt column that connects lower body and cylinder block for installing, bolt column is positioned at the inboard of lower body sidewall, described bolt column comprises the first bolt column, the second bolt column and the 3rd bolt column, described the first bolt column and the second bolt column lay respectively at the both sides of the arcuate walls of lower body horizontal direction, described the first bolt column, the second bolt column all are positioned at the rear side of the first stiffening rib, the 3rd bolt and the first bolt column are positioned at arcuate walls the same side and are positioned at the first bolt column rear side, and described the 3rd bolt column is connected with described lower body sidewall.
Further, described the second stiffening rib is connected to respectively the side near the first stiffening rib of the first bolt column and the second bolt column, described the 3rd stiffening rib is connected to respectively the opposite side of the first stiffening rib of the first bolt column and the second bolt column, one end of described the 4th stiffening rib is connected with described the 3rd bolt column, and the other end of described the 4th stiffening rib is connected with the lower body sidewall.
Further, described the second stiffening rib and/or the 3rd stiffening rib and described the first bolt column and the second bolt column joint extend to the lower body sidewall.
Further, the height of described stiffening rib is less than the height of described lower body sidewall
A kind of motor comprises the lower body structure, and described lower body structure is above-mentioned lower body structure.
The utility model adopts after such structure, removed unnecessary balance shaft structure, adopt arcuate walls so that lower body is simple in structure, because the component of arcuate walls are few simple in structure, so thickness is smaller, adaptive capacity to little distortion is better, by using stiffening rib arcuate walls is reinforced, so that the intensity of arcuate walls and rigidity reinforced.In addition, also provide a kind of motor, motor adopts the arcuate walls framework, removes balance shaft structure, and total quality alleviates.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model motor lower body structure arcuate walls structural representation.
Fig. 2 is a kind of embodiment's of the utility model motor lower body structure the structural representation at another visual angle of arcuate walls.
Fig. 3 is a kind of embodiment's of the utility model motor lower body structure the structural representation of stiffening rib.
Wherein: lower body 1, arcuate walls 2, lower body sidewall 3, the first malformation place 4, the first stiffening ribs 5, the second stiffening ribs 6, the 3rd stiffening rib 7, the four stiffening ribs 8, the first bolt columns 9, the second bolt column 10, the three bolt columns 11, the five stiffening ribs 12, the 6th stiffening rib 13, the second malformation place 14, the three malformations place 15, the four malformations place 16.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In specification, " front end " " rear end " of mentioning is the front-end and back-end of motor, the front end of motor is the end face that is connected with front cover, the rear end is determined with respect to front end, the axial direction of motor is " longitudinal direction " as herein described, is positioned at direction vertical with longitudinal direction on the horizontal plane and is herein described " horizontal direction ", herein pointed " rear side ", take front end as object of reference, by front end to the back-end the direction visual angle as location expression.
As shown in Figure 1, a kind of motor lower body structure that the utility model provides, comprise the crankcase section (not shown) that bent axle (not shown) revolution space is provided and be positioned at the crankcase back side for the assembly department that is connected with the oil sump (not shown), described crankcase section comprises that be used to the arcuate walls 2 that the crankshaft rotating space is provided, described arcuate walls 2 is curved surface towards a side of bent axle.
In the large-duty engine of prior art, owing to need the high rotating speed operation of bent axle, motor itself can produce noise and vibration, in order to overcome strong noise and vibration, in the assembly department of lower body, trunnion shaft is set, and the only effect of competence exertion noise reduction and damping high-revolving time of trunnion shaft, so the effect of the damping noise reduction of trunnion shaft is not obvious in the slow-revving small displacement engine of bent axle, and the structure of trunnion shaft has been so that motor has increased good multiple component, the utility model proposes a kind of scheme and the crankcase of trunnion shaft will be installed partly change arcuate walls 2 into.
Be the thin-walled of arc in conjunction with described arcuate walls 2 shown in Figure 2, be the curved surface setting towards bent axle one side, the assembly department that is used for the connection oil sump is arranged on the side that arcuate walls 2 arches upward, the side that arcuate walls 2 arches upward also is provided with reinforcing rib structure, reinforcing rib structure extends to arcuate walls 2 both sides along the horizontal direction of lower body, all stiffening ribs all are positioned at the arcuate walls 2 that assembly department surrounds, because arcuate walls 2 does not have unnecessary assembly, the lower body that Thickness Ratio is equipped with balance shaft structure reduces, quality is lighter, be conducive to whole motor loss of weight, in addition, arcuate walls 2 can play guiding function to the mixed gas of crankcase, mixed gas in the crankcase of limit refluxes, so that the performance of ventilating of crankcase is better, owing to there is not the existence of trunnion shaft to reduce a large amount of component, relevant trunnion shaft oil leab can omit, and has so just reduced the complexity of lower body.
In conjunction with shown in Figure 3, the below further explains to the position of stiffening rib, motor is in the time of normal operation, need to be lubricated with having, the oil sump that stores lubricant oil is connected with lower body 1, connect for convenient, be provided with assembly department at lower body 1, described assembly department comprises lower body 1 sidewall that oil sump is installed, and the corresponding through hole that is provided with for the bolt of installing on the lower body sidewall is because in the present embodiment, there is not balance shaft structure, the adaptive capacity of 2 pairs of little distortion of arcuate walls strengthens, because the fitting machine oil pump breach that arcuate walls 2 exists, vertical tension is larger, so need to arrange stiffening rib, described stiffening rib is arranged on the one side that arcuate walls 2 deviates from bent axle along the circumferential direction of the curved surface of arcuate walls 2, and the two ends of described stiffening rib are connected with described lower body sidewall 3, stiffening rib so that the intensity of arcuate walls 2 and rigidity improve.
In conjunction with shown in Figure 3, as better scheme, stiffening rib is installed in malformation place of assembly department, described malformation place is the place that structure changes, local intensity and rigidity that structure changes can change to some extent, and the lower body sidewall is according to the shape of oil sump and difference, in the present embodiment, described reinforcing rib structure is six stiffening ribs, edge in close oil pump one side of arcuate walls 2 is provided with the first stiffening rib 5, vertically be interval with successively the second stiffening rib 6 by lower body, the 3rd stiffening rib, the 4th stiffening rib 8, the 5th stiffening rib 12 and the 6th stiffening rib 13, described the first stiffening rib 5, the 4th stiffening rib 8, the 5th stiffening rib 12 and the 6th stiffening rib 13 are connected with malformation place of assembly department respectively, so that whole structure is more firm.
In conjunction with shown in Figure 3, malformation place of described assembly department comprises the first malformation place 4, the second malformation place 14, the 3rd malformation place 15 and the 4th malformation place 16, described the first stiffening rib 5 is connected with the first malformation place 4, described the 4th stiffening rib 8 is connected with the second malformation place 14, the 5th stiffening rib 12 is connected with the 3rd malformation place 15, and the 6th stiffening rib 13 is connected with the 4th malformation place 16.
Lower body 1 and the cylinder block (not shown) just crankcase of complete that links together, for construction bolt, lower body 1 also comprises the bolt column that connects lower body 1 and cylinder block for installing, bolt column is the inboard with assembly department, described bolt column comprises the first bolt column 9, the second bolt column 10 and the 3rd bolt column 11, described the first bolt column 9 and the second bolt column 10 lay respectively at the both sides of the arcuate walls 2 of lower body 1 horizontal direction, described the first bolt column 9, the second bolt column 10 all is positioned at the rear side of the first stiffening rib 5, the 3rd bolt column and the first bolt column 9 are positioned at arcuate walls the same side and are positioned at the first bolt column 10 rear sides, described the 3rd bolt column 11 is connected with described lower body sidewall 3, bolt column is arranged in the assembly department inboard, compact structure, also can save lower body 1 peripheral space, for the layout of other annexes of motor provides condition.
Because the existence of bolt column is arranged, stressed concentrating can appear in the bolt column periphery, usually need to increase in the prior art supporting rib, because partial structurtes are complicated, independent layout supporting rib is unfavorable for formed product, so in the present embodiment, described the second stiffening rib 6 is connected to respectively the side near the first stiffening rib 5 of the first bolt column 9 and the second bolt column 10, described the 3rd stiffening rib 7 is connected to respectively the opposite side of the first stiffening rib 5 of the first bolt column 9 and the second bolt column 10, one end of described the 4th stiffening rib 8 is connected with described the 3rd bolt column 11, and the other end of described the 4th stiffening rib 8 is connected with lower body sidewall 3.
In order to strengthen the reinforcement effect of 7 pairs of the first bolt columns 9 of the second stiffening rib 6 and the 3rd stiffening rib and the second bolt column 10, described the second stiffening rib 6 and/or the 3rd stiffening rib 7 extend to lower body sidewall 3 with described the first bolt column 9 and the second bolt column 10 joints, the second stiffening rib 6 and the 3rd stiffening rib 7 can all extend to lower body sidewall 3, also can independent second stiffening rib 6 or the 3rd stiffening rib 7 be connected to lower body sidewall 3, adopting two stiffening ribs to support the clamping bolt column replaces supporting rib to reinforce bolt column, can reduce the formed product difficulty, also can be so that simple in structure.
In addition, consider the difficulty of machine shaping, the first bolt column 9 can not be connected with lower body sidewall 3 by stiffening rib with the second bolt column 10 yet.
Because the first bolt column 9 and the second bolt column 10 are arranged in arcuate walls 2 both sides, can utilize two stiffening ribs jointly to support clamping the 3rd mounting hole site on the arcuate walls 2 of the first bolt column 9 the same sides, so need an independent stiffening rib to support fixing, in the present embodiment, one end of described the 4th stiffening rib 8 is connected with described the 3rd bolt column 11, the other end of described the 4th stiffening rib 8 is connected with the lower body sidewall, reinforces by 8 pairs of the 3rd bolt columns 11 of the 4th stiffening rib.
Described stiffening rib is platy structure, described stiffening rib and arcuate walls 2 Surface Verticals, the height of described stiffening rib is less than the height of described lower body sidewall 3, platy structure can play oil-blocking action to the machine oil in the oil sump, prevent that the machine oil in the oil sump from splashing, the consistency of thickness of all stiffening ribs, owing to also need to arrange machine oil gathering-device or miscellaneous part in the oil sump, interfere for fear of stiffening rib, the height of described stiffening rib reserves a part of space so that oil sump is better installed, in addition less than the height of described lower body sidewall 3, the stiffening rib height reduces, and also can alleviate overall weight.
Because engine arrangement oil pump one side is rotational structure, in addition, because there is an installation gap in structure, so vertical tension is larger, the layout of the local stiffening rib that tension force is larger is comparatively intensive, so in the present embodiment, the interval between the adjacent stiffening rib is increased to the back-end gradually by lower body 1 front end, according to the different reasonable Arrangement stiffening ribs of tension force, so that stiffening rib can better strengthen intensity and the rigidity of arcuate walls 2.
The utility model also provides a kind of motor, comprise lower body 1, comprise the crankcase that the crankshaft rotating space is provided and be positioned at the crankcase back side for the assembly department that is connected with oil sump, arcuate walls 2 is curved surface towards bent axle one side, in addition, be circumferentially with stiffening rib in the assembly department inboard along lower body 1, arcuate walls 2 can improve the adaptation to little deformability, and stiffening rib can improve intensity and the rigidity of arcuate walls 2.
A kind of lower body structure that the utility model provides, comprise the crankcase that the crankshaft rotating space is provided and be positioned at the crankcase back side for the assembly department that is connected with oil sump, described crankcase comprises arcuate walls, described arcuate walls is curved surface towards the bent axle side, described assembly department is arranged on the described arcuate walls, be provided with stiffening rib between described assembly department and the arcuate walls, described stiffening rib is connected with malformation place of assembly department, malformation place at assembly department arranges stiffening rib, so that the intensity of arcuate walls and malformation place and rigidity reinforced, remove balance shaft structure, so that lower body is simple in structure, weight saving also can be played fixation to bolt column by stiffening rib, so that overall structure is conducive to formed product; In addition, the utility model also provides a kind of motor, comprise the lower body structure, the lower body structure has adopted the arcuate walls structure to replace balance shaft structure, so that simple in structure, to the adaptive capacity enhancing of little distortion, the crankcase ventilation performance is better, set up stiffening rib in the assembly department inboard and can prevent that also the machine oil in the oil sump from splashing, the intensity of total and rigidity reinforced.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. motor lower body structure, comprise and the crankcase in crankshaft rotating space section is provided and is positioned at the crankcase section back side for the assembly department that is connected with oil sump, it is characterized in that, described crankcase section comprises be used to the arcuate walls that the crankshaft rotating space is provided (2), described arcuate walls (2) is curved surface towards the side of bent axle, described assembly department comprises the lower body sidewall (3) that oil sump is installed, on the side that the described arcuate walls (2) that is positioned at described lower body sidewall arches upward, a side that arches upward in described arcuate walls (2) also is provided with reinforcing rib structure, the lower body sidewall (3) of described reinforcing rib structure along the horizontal direction of lower body (1) to arcuate walls (2) both sides extends, described stiffening rib is platy structure, described stiffening rib and arcuate walls (2) Surface Vertical.
2. motor lower body structure according to claim 1, it is characterized in that, described reinforcing rib structure comprises six stiffening ribs, edge in close oil pump one side of arcuate walls (2) is provided with the first stiffening rib (5), vertically is interval with successively the second stiffening rib (6), the 3rd stiffening rib (7), the 4th stiffening rib (8), the 5th stiffening rib (12) and the 6th stiffening rib (13) by lower body.
3. motor lower body structure according to claim 2 is characterized in that, the interval between the adjacent stiffening rib is increased to the back-end gradually by the front end of lower body (1).
4. motor lower body structure according to claim 3, it is characterized in that described the first stiffening rib (5), the 4th stiffening rib (8), the 5th stiffening rib (12) and the 6th stiffening rib (13) are connected with malformation place of lower body sidewall (3) respectively.
5. motor lower body structure according to claim 4, it is characterized in that, malformation place of described lower body sidewall (3) comprises the first malformation place (4), the second malformation place (14), the 3rd malformation place (15) and the 4th malformation place (16), described the first stiffening rib (5) is connected with the first malformation place (4), described the 4th stiffening rib (8) is connected with the second malformation place (14), the 5th stiffening rib (12) is connected with the 3rd malformation place (15), and the 6th stiffening rib (13) is connected with the 4th malformation place (16).
6. motor lower body structure according to claim 5, it is characterized in that, also comprise the bolt column that connects lower body (1) and cylinder block for installing, bolt column is positioned at the inboard of lower body sidewall (3), described bolt column comprises the first bolt column (9), the second bolt column (10) and the 3rd bolt column (11), described the first bolt column (9) and the second bolt column (10) lay respectively at the both sides of the arcuate walls (2) of lower body (1) horizontal direction, described the first bolt column (9), the second bolt column (10) all is positioned at the rear side of the first stiffening rib (5), the 3rd bolt column (11) is positioned at arcuate walls the same side and is positioned at the first bolt column (10) rear side with the first bolt column (9), and described the 3rd bolt column (11) is connected with described lower body sidewall (3).
7. motor lower body structure according to claim 6, it is characterized in that, described the second stiffening rib (6) is connected to respectively the side near the first stiffening rib (5) of the first bolt column (9) and the second bolt column (10), described the 3rd stiffening rib (7) is connected to respectively the opposite side of first stiffening rib (5) of the first bolt column (9) and the second bolt column (10), one end of described the 4th stiffening rib (8) is connected with described the 3rd bolt column (11), and the other end of described the 4th stiffening rib (8) is connected with lower body sidewall (3).
8. motor lower body structure according to claim 7 is characterized in that, described the second stiffening rib (6) and/or the 3rd stiffening rib (7) extend to lower body sidewall (3) with described the first bolt column (9) and the second bolt column (10) joint.
9. motor lower body structure according to claim 1 is characterized in that, the height of described stiffening rib is less than the height of described lower body sidewall (3).
10. a motor comprises the lower body structure, it is characterized in that, described lower body structure is the described lower body structure of claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220155909 CN202645766U (en) | 2012-04-13 | 2012-04-13 | Engine lower body structure and engine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220155909 CN202645766U (en) | 2012-04-13 | 2012-04-13 | Engine lower body structure and engine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645766U true CN202645766U (en) | 2013-01-02 |
Family
ID=47414884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220155909 Expired - Lifetime CN202645766U (en) | 2012-04-13 | 2012-04-13 | Engine lower body structure and engine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645766U (en) |
-
2012
- 2012-04-13 CN CN 201220155909 patent/CN202645766U/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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |