CN201614992U - Crankcase housing assembly of motorcycle engine - Google Patents
Crankcase housing assembly of motorcycle engine Download PDFInfo
- Publication number
- CN201614992U CN201614992U CN2010201349695U CN201020134969U CN201614992U CN 201614992 U CN201614992 U CN 201614992U CN 2010201349695 U CN2010201349695 U CN 2010201349695U CN 201020134969 U CN201020134969 U CN 201020134969U CN 201614992 U CN201614992 U CN 201614992U
- Authority
- CN
- China
- Prior art keywords
- hole
- tapped hole
- case
- arc notch
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a crankcase housing assembly of a motorcycle engine, which comprises a left case and a right case. A right arc notch, a first mounting through hole and a second mounting through hole are arranged on the left end face of the right case, and a first threaded hole, a second threaded hole and a left arc notch are arranged on the right end face of the left case and respectively correspond to the first mounting through hole, the second mounting through hole and the right arc notch. After the left case and the right case are fastened together, a cavity is formed in insides of the left case and the right case, a circular mounting hole is formed by the left arc notch and the right arc notch, a first screw is respectively arranged in the first mounting through hole and the first threaded hole, and the second mounting through hole and the second threaded hole in a penetrating manner, a third threaded hole is disposed, between the first threaded hole and the second threaded hole, on the left case, a third mounting through hole is disposed at a position, corresponding to the third threaded hole, on the right case, and a second screw is mounted in the third mounting through hole and the third threaded hole. The crankcase housing assembly of a motorcycle engine has the advantages of simple structure, convenient manufacturing, and capabilities of effectively improving sealing performance of a combined face of the left case and the right case and preventing engine oil lubricating gears from flowing out of the cases.
Description
Technical field
The utility model relates to the crankshaft box of motorcycle engine technical field, relates in particular to the crankshaft box of motorcycle engine housing assembly.
Background technique
Traditional crankshaft box of motorcycle engine housing assembly, comprise left box body and right case, wherein the left side of right case has right arc notch and first and second installation through hole, and this first and second installation through hole is positioned at right arc notch below, and corresponding first and second in the right side of described left box body is installed by through hole and described right arc notch place is provided with first and second tapped hole and left arc notch; After described left box body and right case fastened, inside was formed with cavity, and circular mounting hole of left and right arc notch formation, in this mounting hole gear was installed, and simultaneously, for oilgear, guaranteed that it runs well, also can splendid attire machine oil in the internal cavities of casing.Simultaneously, the described first installation through hole, first tapped hole and second are installed in through hole, second tapped hole and all are equipped with first screw, and this first screw is fixedlyed connected left box body with right case.When the high-speed gear in the casing turns round, meeting pressurized air, cause box house pressure to increase, again because the spacing of first and second tapped hole is bigger, so just make the sealing effect variation of casing and right case lid junction plane, the machine oil in the casing will flow to outside the casing from the junction plane between two first screws, has not only influenced the normal operation of casing internal gear, and can cause the waste of machine oil, this technical barrier all is not eliminated for a long time.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of crankshaft box of motorcycle engine housing assembly that can guarantee left box body and right case junction plane sealing effect.
The technical solution of the utility model is as follows: a kind of crankshaft box of motorcycle engine housing assembly, comprise left box body and right case, wherein the left side of right case has right arc notch and first and second installation through hole, this first and second installation through hole is positioned at right arc notch below, and corresponding first and second in the right side of described left box body is installed by through hole and described right arc notch place is provided with first and second tapped hole and left arc notch; After described left box body and right case fasten, inside is formed with cavity, and left and right arc notch butt joint back forms a circular mounting hole, the described first installation through hole, first tapped hole and second are installed in through hole, second tapped hole and all are equipped with first screw, this first screw is fixedlyed connected left box body with right case, its key is: have the 3rd tapped hole on the left box body between described first and second tapped hole, to having the 3rd installation through hole in the 3rd tapped hole place, in the 3rd installation through hole and the 3rd tapped hole second screw is housed on the right case.
The utility model is on the basis of conventional construction, on the left box body between described first and second tapped hole, have the 3rd tapped hole, to having the 3rd installation through hole in the 3rd tapped hole place, in the 3rd installation through hole and the 3rd tapped hole second screw is housed on the right case.Compare with conventional construction, the utility model has increased by second screw, thereby increased the structural strength of this housing assembly, can effectively improve the sealability of left box body and right case junction plane, the machine oil that prevents oilgear overflows outside casing through left box body and right case junction plane, both guarantee the normal operation of casing internal gear, can avoid the waste of machine oil again.
Be provided with cylindrical boss on the right side of described left box body, this boss is positioned at the internal cavities of case, and described the 3rd tapped hole is opened on this boss.Above structure can effectively strengthen structural strength of the present utility model, improves its performance.
Centre distance between described the 3rd tapped hole and first tapped hole is 53.5mm, and the centre distance between the 3rd tapped hole and second tapped hole is 53.5mm, and this structure can further be improved structural strength of the present utility model.
Beneficial effect: the utility model is simple in structure, easy to make, can effectively improve the sealability of left box body and right case junction plane, the machine oil that prevents oilgear overflows outside casing through left box body and right case junction plane, both guarantee the normal operation of casing internal gear, can avoid the waste of machine oil again.
Description of drawings
Fig. 1 is an erection drawing of the present utility model.
Fig. 2 is the schematic representation when left box body 1 separates with right case 2 among Fig. 1.
Fig. 3 is the structural representation of left box body 1 among Fig. 1.
Fig. 4 is the structural representation of right case 2 among Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Shown in Fig. 1～4, a kind of crankshaft box of motorcycle engine housing assembly, comprise left box body 1 and right case 2, wherein the left side of right case 2 has right arc notch 2a and first and second installation through hole 2b, 2c, this first and second installation through hole is positioned at right arc notch 2a below, and corresponding first and second in the right side of left box body 1 is installed by through hole and described right arc notch 2a place is provided with first and second tapped hole 1b, 1c and left arc notch 1a.After described left box body 1 and right case 2 fastened, inside was formed with cavity, and left and right arc notch 1a, 2a butt joint back forms a circular mounting hole.The described first installation through hole 2b, the first tapped hole 1b and second install among through hole 2c, the second tapped hole 1c and all are equipped with first screw 3, and this first screw 3 is fixedlyed connected left box body 1 with right case 2.
From Fig. 1～4, also can find out, on the left box body between described first and second tapped hole 1b, the 1c, have the 3rd tapped hole 1d, to having the 3rd installation through hole 2d in the 3rd tapped hole place, among the 3rd installation through hole 2d and the 3rd tapped hole 1d second screw 4 is housed on the right case 2.
Can find out further also that from Fig. 1～4 be provided with cylindrical boss 5 on the right side of described left box body 1, this boss 5 is positioned at the internal cavities of casing 1, described the 3rd tapped hole 1d opens on this boss 5.Centre distance between described the 3rd tapped hole 1d and the first tapped hole 1a is 53.5mm, and the centre distance between the 3rd tapped hole 1d and the second tapped hole 1b is 53.5mm.
Claims (3)
1. crankshaft box of motorcycle engine housing assembly, comprise left box body (1) and right case (2), wherein the left side of right case (2) has right arc notch (2a) and first and second installation through hole (2b, 2c), this first and second installation through hole is positioned at right arc notch (2a) below, and corresponding first and second in the right side of described left box body (1) is installed by through hole and described right arc notch (2a) locates to be provided with first and second tapped hole (1b, 1c) and left arc notch (1a); After described left box body (1) and right case (2) fasten, inside is formed with cavity, an and left side, right arc notch (1a, 2a) the butt joint back forms a circular mounting hole, described first installs through hole (2b), first tapped hole (1b) and second is installed through hole (2c), all be equipped with first screw (3) in second tapped hole (1c), this first screw (3) is fixedlyed connected left box body (1) with right case (2), it is characterized in that: described first, two tapped hole (1b, have the 3rd tapped hole (1d) on the left box body 1c), right case (2) is gone up having the 3rd installation through hole (2d) in the 3rd tapped hole place, in the 3rd installation through hole (2d) and the 3rd tapped hole (1d) second screw (4) is housed.
2. crankshaft box of motorcycle engine housing assembly according to claim 1, it is characterized in that: on the right side of described left box body (1), be provided with cylindrical boss (5), this boss (5) is positioned at the internal cavities of casing (1), and described the 3rd tapped hole (1d) is opened on this boss (5).
3. crankshaft box of motorcycle engine housing assembly according to claim 1 and 2, it is characterized in that: the centre distance between described the 3rd tapped hole (1d) and first tapped hole (1a) is 53.5mm, and the centre distance between the 3rd tapped hole (1d) and second tapped hole (1b) is 53.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201349695U CN201614992U (en) | 2010-03-18 | 2010-03-18 | Crankcase housing assembly of motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201349695U CN201614992U (en) | 2010-03-18 | 2010-03-18 | Crankcase housing assembly of motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201614992U true CN201614992U (en) | 2010-10-27 |
Family
ID=43001361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201349695U Expired - Fee Related CN201614992U (en) | 2010-03-18 | 2010-03-18 | Crankcase housing assembly of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201614992U (en) |
-
2010
- 2010-03-18 CN CN2010201349695U patent/CN201614992U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201614992U (en) | Crankcase housing assembly of motorcycle engine | |
| CN202252755U (en) | Rotor type engine oil pump | |
| CN2934628Y (en) | Fuel injection pump transmission device | |
| CN204226043U (en) | A kind of integrated form gear chamber | |
| CN201461161U (en) | Structure for preventing breakaway of breather pipe joint of gasoline-engine air intake system | |
| CN201610797U (en) | General gasoline engine box shell assembly | |
| CN202252644U (en) | Rear-mounted flywheel housing | |
| CN203670017U (en) | Cylinder block of diesel engine | |
| CN204088880U (en) | A kind of mounting structure of spark plug protective sleeve | |
| CN207620926U (en) | A kind of Motorcycle Engine Shell that diagnosis efficiency is high | |
| CN201747429U (en) | Mounting structure of engine oil dipstick | |
| CN202152695U (en) | Sealing structure of oil pump shell | |
| CN202252756U (en) | Combined pump cover-type rotor oil pump | |
| CN201113616Y (en) | Electric motor shell cover and stator assembling structure | |
| CN202746559U (en) | Anti-theft screwed plug of oil discharging hole in speed changing box of oil pumping machine | |
| CN203115467U (en) | Oil pump connection structure | |
| CN201013727Y (en) | General purpose petrol engine linkage rod | |
| CN201916065U (en) | Cylinder provided with water pump and oil pump mounting holes | |
| CN202883387U (en) | Connecting device of gasoline engine water pump | |
| CN203604570U (en) | Novel hydraulic drive transmission | |
| CN212318111U (en) | Integrated oil sump device of diesel engine | |
| CN202431781U (en) | Main cylinder of clutch | |
| CN203035378U (en) | Left crankcase cover of engine of motorcycle | |
| CN202883204U (en) | Engine starting device | |
| CN211648985U (en) | Main reducer shell of intermediate axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING YONGFA TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHONGQING YONGFA MOTORCYCLE ACCESSORIES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400700 71 bridge, Beibei District, Chongqing Patentee after: Chongqing Yongfa Technology Co. Ltd. Address before: 400700 71 bridge, Beibei District, Chongqing Patentee before: Chongqing Yongfa Motorcycle Parts Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |