CN114406244A - Manufacturing process of split type motorcycle cylinder body - Google Patents
Manufacturing process of split type motorcycle cylinder body Download PDFInfo
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- CN114406244A CN114406244A CN202210025745.8A CN202210025745A CN114406244A CN 114406244 A CN114406244 A CN 114406244A CN 202210025745 A CN202210025745 A CN 202210025745A CN 114406244 A CN114406244 A CN 114406244A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a manufacturing process of a split type motorcycle cylinder body, which comprises the following steps of S1, preparing in the early stage; s2, putting the mold; s3, pouring aluminum liquid; s4, taking out the cylinder block; and S5, forming the cylinder block. The cylinder block is manufactured in a pouring mode, so that operations such as bridging, separating, layering and the like can be performed on a steel sleeve hole of the cylinder block, a guide block can be conveniently arranged on a cooling channel, the staying time and the staying path of cooling liquid in the cylinder block are increased, and the cooling effect of the cylinder block is improved; by adopting the processing scheme of the invention, the outer shell is made of aluminum alloy, and the inner cylinder sleeve is made of cast iron material, so that the weight of the cylinder body can be reduced, the energy consumption during alloy melting can be reduced, and the manufacturing cost of the cylinder body can be further reduced.
Description
Technical Field
The invention belongs to the technical field of motorcycle cylinder body processing, and particularly relates to a manufacturing process of a split type motorcycle cylinder body.
Background
In motorcycles, to increase cooling of the engine, a water-cooled engine is often used. In water-cooled engines, two general methods are used for machining the cylinder block: one is casting the whole cast iron sand core and the other is die casting the aluminum alloy. By adopting the former, the whole body adopts a cast iron type, and because the cooling channel is positioned between the cylinder hole and the radiating fin, the processing is difficult, and in order to facilitate the heat radiation, noble metal materials such as copper and the like are added into the material, so that the material not only needs higher temperature when being melted, but also has high cost and heavy weight; and the rear side is adopted, the dies are steel dies, and demoulding is required to be considered for the steel dies, so that the steel dies cannot be made into special shapes such as bridging and the like, and when the cylinder body with the water channel is subjected to die casting, the cylinder sleeve forms a cantilever beam during die casting, so that the cylinder body is unstable in use, and the process is usually used for processing and manufacturing the cylinder body without a cooling channel.
Disclosure of Invention
The invention aims to provide a manufacturing process of a split type motorcycle cylinder body, which can reduce the whole weight of the cylinder body, reduce the cost and reduce the energy consumption.
Therefore, the technical scheme adopted by the invention is as follows: a manufacturing process of a split type motorcycle cylinder body comprises the following steps,
s1, preparing: manufacturing a cooling sand core according to the shape of the cooling channel of the cylinder body, manufacturing a cast iron cylinder sleeve by using a centrifugal machine, and manufacturing an upper steel mould and a lower steel mould of the cylinder body through the shape of the cylinder body;
s2, putting the mold: correspondingly installing an upper steel die and a lower steel die of the cylinder body on a press machine, then correspondingly placing the prepared cooling sand core and the cast iron cylinder sleeve into the lower steel die, and then closing the dies;
s3, pouring aluminum liquid: pouring aluminum liquid along the reserved pouring gate, and enabling the aluminum liquid to flow into the mold cavity;
s4, taking out the cylinder block: after the aluminum liquid is poured in, the cylinder body is taken out after being solidified for 3 minutes, and the cylinder body is put into a container after being taken out for water cooling or natural air cooling;
s5, molding of cylinder block: and (4) carrying out sand removal treatment on the cooled cylinder body, and sequentially carrying out tempering and shot blasting on the treated cylinder body.
Preferably, in S2, the cast iron cylinder jacket needs to be heated to the same temperature as the molten aluminum before being placed in the mold.
Further preferably, in S2, when the cast iron cylinder sleeve and the cooling sand core are placed, a mold release agent needs to be punched in the upper steel mold and the lower steel mold, and two pouring ports into which the molten aluminum is poured are left between the upper steel mold and the lower steel mold.
Further preferably, in S2, the press is a tiltable press, and in S3, after the aluminum liquid is poured into the cavity, the press needs to tilt the upper steel die and the lower steel die to facilitate the aluminum liquid to enter the cavity.
Further preferably, in S1, the cast iron cylinder liner needs to be tempered after the completion of machining.
Further preferably, the cylinder block includes a housing, a cylinder sleeve hole which is through from top to bottom is arranged in the housing, a cylinder sleeve coaxial with the cylinder sleeve hole is arranged in the cylinder sleeve hole, an anti-channeling structure for preventing the cylinder sleeve from channeling is arranged on the periphery of the cylinder sleeve, an annular notch groove which extends from top to bottom is arranged in the housing, the annular notch groove is arranged around the cylinder sleeve hole, a gap is reserved between the annular notch groove and the cylinder sleeve hole, a liquid inlet which is the same as the annular notch groove is arranged at a position, close to the lower end, in the middle of the left side of the housing, and the axis of the liquid inlet is perpendicular to the axis of the cylinder sleeve.
Further preferably, the anti-channeling structure comprises a first notch groove formed in the upper end of the shell around the cylinder sleeve hole, a first boss matched with the first notch groove is arranged at the upper end of the cylinder sleeve, a second notch groove is formed in the lower end of the shell around the cylinder sleeve hole, a second boss matched with the second notch groove is arranged at the lower end, close to the lower end, of the cylinder sleeve, the upper end of the shell is flush with the upper end of the cylinder sleeve, and the lower end of the second boss is flush with the lower end of the shell.
Further preferably, the position, outside the cylinder sleeve, between the first protrusion and the second protrusion is set as a friction surface, a plurality of small convex points are arranged between the friction surfaces, the position, outside the cylinder sleeve, below the second protrusion is set as a smooth surface, a plurality of contact protrusions are evenly arranged on the outer arc surface of the second boss, and contact grooves corresponding to the contact protrusions are arranged in the second notch grooves.
It is further preferred that the left side of annular scarce groove is provided with and lacks the groove bottom by the annular and upwards extend and be cylindrical third arch, the bellied right side of third lacks the contact of groove internal wall face with the annular, and the left side lacks the communicating position department of groove to inlet and annular and extends, the bellied upper end of third is higher than the inlet upper end.
Further preferably, at least one arc-shaped protrusion is arranged in the annular notch groove at an upper interval and a lower interval, the width of the arc-shaped protrusion is equal to that of the annular notch groove, two adjacent arc-shaped protrusions are oppositely arranged, and the middle part of the arc-shaped protrusion at the lowest end is positioned above the position where the liquid inlet is communicated with the cooling channel.
The invention has the beneficial effects that: the cylinder block is manufactured in a pouring mode, so that operations such as bridging, separating, layering and the like can be performed on a steel sleeve hole of the cylinder block, a guide block can be conveniently arranged on a cooling channel, the staying time and the staying path of cooling liquid in the cylinder block are increased, and the cooling effect of the cylinder block is improved; by adopting the processing scheme of the invention, the outer shell is made of aluminum alloy, the inner cylinder sleeve is made of cast iron material, and the density of the cast iron is 7g/m3About, and the density of the aluminum alloy is 2.7g/m3The weight of the cylinder block can be reduced under the same volume, and compared with the melting point of cast iron of about 1200 ℃, the melting point of the aluminum alloy is only about 700 ℃, so that the energy consumption during the melting of the alloy can be reduced, and the manufacturing cost of the cylinder block is further reduced.
Drawings
FIG. 1 is a process flow diagram of the present invention.
FIG. 2 is a schematic diagram of the present invention.
FIG. 3 is a cross-sectional view taken along section line M1-M1 in FIG. 2.
FIG. 4 is a cross-sectional view taken along section line M2-M2 in FIG. 2.
FIG. 5 is a cross-sectional view taken along section line N1-N1 in FIG. 3.
FIG. 6 is a cross-sectional view taken along section line N2-N2 in FIG. 4.
Fig. 7 is a first schematic view (right side looking down from above) of the housing of the present invention.
Fig. 8 is a second schematic view (left side looking down and up) of the housing of the present invention.
FIG. 9 is a schematic illustration of a cylinder liner of the present invention.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 9, a manufacturing process of a split type motorcycle cylinder block includes the steps of,
first, early preparation: and manufacturing a cooling sand core according to the shape of the cooling channel of the cylinder body, manufacturing a cast iron cylinder sleeve by using a centrifugal machine, tempering, eliminating die-casting stress, and manufacturing an upper steel die and a lower steel die of the cylinder body according to the shape of the cylinder body. Wherein the tempering process of the cast iron cylinder sleeve comprises the following steps: heating the cylinder sleeve to 600 ℃ within 2 hours, then preserving the heat for 4-6 hours, and naturally cooling.
Step two, putting in a mold: and correspondingly installing an upper steel die and a lower steel die of the cylinder body on the inclinable press, correspondingly placing the prepared cooling sand core and the cast iron cylinder sleeve into the lower steel die, and then closing the dies. In the process, before the cast iron cylinder sleeve and the cooling sand core are placed, a release agent needs to be punched in the upper steel die and the lower steel die to facilitate the demolding of the subsequent shell, the cast iron cylinder sleeve and the cooling sand core are conveniently fixed, the lower steel die at least comprises a left lower steel die and a right lower steel die, the lower ends of the left lower steel die and the right lower steel die after die assembly are provided with bulges for fixing the lower end of the cylinder sleeve, the cooling sand core is provided with a spigot end, and the die is provided with a notch for fixing the spigot end. And the cast iron cylinder sleeve needs to be heated to the temperature equal to that of the aluminum liquid, and then the cast iron cylinder sleeve is placed into a mold, and the cast iron cylinder sleeve is usually heated to 600 ℃ because the temperature of the aluminum liquid is between 600 ℃ and 700 ℃. The impurities and the molding sand in the upper steel die and the lower steel die are required to be cleaned before die assembly, so that the influence on the casting of the shell is prevented.
Step three, pouring aluminum liquid: and (4) inclining the inclinable press, then pouring the aluminum liquid into the mold cavity along the reserved pouring gate, and allowing the aluminum liquid to flow into the mold cavity. In the present embodiment, two gates are provided.
Fourthly, taking out the cylinder block: after the aluminum liquid is poured in, the cylinder body is taken out after being solidified for 3 minutes, and the cylinder body is put into a container after being taken out for water cooling or natural air cooling;
and fifthly, forming the cylinder body: and (3) carrying out sand removal treatment on the cooled cylinder block, and then sequentially carrying out tempering and shot blasting treatment on the treated cylinder block, wherein during tempering, the cylinder block is firstly heated to 220 ℃ within 2 hours, then is subjected to heat preservation for 4-6 hours, and finally is naturally cooled in a heating furnace. During desanding, firstly, the molding sand in the cylinder body is vibrated to loosen through a vibrating machine, and then the molding sand is poured out.
The cylinder body processed by the process consists of a shell 2 and a cylinder sleeve 1, wherein a cylinder sleeve hole 2a which is communicated up and down is arranged in the shell 2, and the cylinder sleeve 1 which is coaxial with the cylinder sleeve hole 2a is arranged in the cylinder sleeve hole. In order to facilitate cooling of the cylinder sleeve, an annular notch 2d extending up and down is arranged in the shell 2, the annular notch 2d is arranged around the cylinder sleeve hole 2a, and a gap is reserved between the annular notch and the cylinder sleeve hole 2 a. In order to facilitate the cooling liquid to enter the annular notch 2d, a liquid inlet 2e which is the same as the annular notch 2d is arranged at the position, close to the lower end, in the middle of the left side of the shell 2, and the axis of the liquid inlet 2e is vertical to the axis of the cylinder sleeve 1. Preferably, the eccentricity between the inlet port 2e and the cylinder liner 1 is zero.
In order to prevent the cylinder liner 1 from moving, a movement prevention structure is provided on the periphery of the cylinder liner. The anti-channeling structure comprises a first notch 2b arranged at the upper end of the shell 2 around the cylinder sleeve hole 2a, a first boss 1a matched with the first notch 2b is arranged at the upper end of the cylinder sleeve 1, a second notch 2c is arranged at the lower end of the shell 2 around the cylinder sleeve hole 2a, a second boss 1b matched with the second notch 2c is arranged at the lower end of the cylinder sleeve 1 close to the lower end, and the notches and the bulges at the upper end and the lower end of the cylinder sleeve 1 are matched so that the two ends of the upper end of the cylinder sleeve 1 can be supported by the shell. After the outer shell 2 is combined with the cylinder liner 1, the upper end of the outer shell 2 is flush with the upper end of the cylinder liner 1, and the lower end of the second boss 1b is flush with the lower end of the outer shell 2. Through the cooperation between first boss and first scarce groove, second boss and the second lack the groove, can prevent effectively that axial float from appearing in cylinder liner 1.
The cylinder sleeve is characterized in that a friction surface 1c is arranged between a first bulge 1a and a second bulge 1b on the outer side of the cylinder sleeve 1, a plurality of small salient points (not shown in the figure) are arranged between the friction surfaces 1c, a smooth surface 1d is arranged below the second bulge 1b on the outer side of the cylinder sleeve 1, a plurality of contact bulges 1f are uniformly arranged on the outer arc surface of the second bulge 1b, and contact grooves 2i corresponding to the contact bulges 1f are arranged in second notches 2 c. The setting of friction surface 1c can increase the area of contact between arc arch and the cylinder liner to can strengthen the bellied 2 g's of arc supporting effect, the setting of the cooperation setting of contact arch 1f and contact groove 2i, friction surface 1c can prevent that cylinder liner 1 from appearing the circumferential rotation simultaneously. The anti-channeling structure can also be formed by arranging a plurality of salient points on the outer circumference of the cylinder sleeve 1 in the cylinder sleeve hole, and the salient points can be in various regular or irregular shapes such as rectangle, hemisphere and the like.
The left side of the annular notch 2d is provided with a columnar third protrusion 2f which extends upwards from the bottom of the annular notch 2d, the right side of the third protrusion 2f is in contact with the inner wall surface of the annular notch 2d, the left side extends towards the position where the liquid inlet 2e is communicated with the annular notch 2d, and the upper end of the third protrusion 2f is just higher than the upper end of the liquid inlet 2 e. The third protrusion 2f is located on the front side and the rear side of the annular groove 2d and is arranged as an exhaust valve side a and an intake valve side b, wherein the intake valve side b is used for guiding cooling liquid to an intake valve, the exhaust valve side a is used for guiding the cooling liquid to an exhaust valve, the cooling liquid enters the liquid inlet 2e along a cooling pipe under the action of a water pump, the third protrusion 2f is divided into two parts, and the two parts respectively enter the annular groove 2d on the corresponding side along the exhaust valve side a and the intake valve side b to respectively cool the intake valve and the exhaust valve. To prevent the coolant from splashing toward the inlet 2e, the intake valve side b is connected to the exhaust valve side a (the end close to the inlet 2e) by a connecting fillet c. The provision of the joining fillet c can prevent the back splash of the most part of the coolant that strikes the third bump 2 f.
In order to reduce the direct impact of the coolant after being divided by the third protrusion 2f on the cylinder sleeve 1, the third protrusion 2f is set to have a thickness larger than that of the other end at one end, so that the air inlet valve side b and the exhaust valve side a are both set to be inclined planes, the air inlet valve side b and the exhaust valve side a are symmetrically arranged front and back, and when the eccentricity between the symmetrical shaft and the sleeve hole is adjusted relatively, the speed of the coolant entering different sides of the annular notch 2d can be changed. Preferably, both slopes are tangent to the transition fillets of the respective side inlet a in communication with the annular recess 2 d.
At least two arc-shaped protrusions 2g which are major arcs are arranged on the annular notch 2d at intervals from top to bottom, the inner sides of the arc-shaped protrusions 2g are in contact with the outer side of the cylinder sleeve 1, the two adjacent arc-shaped protrusions 2g are oppositely arranged, and the middle part of the arc-shaped protrusion 2g at the lowest end is positioned above the position where the liquid inlet 2e is communicated with the cooling channel 2d and is communicated with the third protrusion 2 f. The effect of the arc-shaped protrusion 2g is to laminate the annular gap groove 2d, and the path and time of the cooling liquid passing through the annular gap groove 2d are prolonged, so that more heat can be taken away by the cooling liquid, the water cooling effect of the cylinder body is increased, and the width of the arc-shaped protrusion 2g is equal to that of the annular gap groove, so that the cylinder body is prevented from deforming due to extrusion of a cylinder sleeve in the use process of the cylinder body. The number of the arc-shaped protrusions 2g is set according to the height of the annular notch, and in the embodiment, one arc-shaped protrusion 2g is provided. For the circulation of making things convenient for the coolant liquid, be provided with one or two overflow mouth d on arc arch 2g, overflow mouth d sets up in the protruding 2g top position department when being close to the coolant liquid entering annular and scarce groove 2d of arc, and staggers the setting with the protruding 2f of third.
For the installation of convenient lower rocking arm axle, be provided with rocking arm hole 2h in the position department that the casing 2 right-hand member is close to the lower extreme, correspond rocking arm hole 2h position department in cylinder jacket hole 2a and be provided with and lack groove 2d bottom by the annular and upwards extend and be curved rocking arm arch 2j, the annular is lacked and is vertically provided with in the groove 2d and strengthens protruding 2k, and strengthen protruding 2k be located with rocking arm arch 2j and first lack between the groove 2b bottom, strengthen protruding 2k and rocking arm protruding 2 j's inboard all with cylinder liner 1 outside contact. Because the setting of rocking arm hole 2h and shell outside fin for the shell is located the thickness that rocking arm hole 2h position was put and is lower, and the protruding 2j of rocking arm can increase the thickness of rocking arm hole position department with strengthening protruding 2k homoenergetic, thereby increases intensity.
In order to facilitate the cooling liquid of the cylinder block to enter the cylinder head, at least three gap bridge holes 2k are arranged on the top surface of the shell 2 around the cylinder sleeve hole 2a, the gap bridge holes 2k are communicated with the annular gap groove 2d, in order to prevent the cooling liquid from impacting the cylinder sleeve 1 when passing through the gap bridge holes, the cylinder sleeve is axially moved, the gap bridge holes 2k are waist-shaped, and the smaller radius of the gap bridge holes 2k is equal to the radius of the inner wall surface of the annular gap groove.
In order to ensure the liquid separating effect of the third protrusions 2f, the bottoms of the third protrusions 2f are in contact with the bottom of the annular notch 2d, and the upper ends of the third protrusions 2f are higher than the upper ends of the liquid inlets 2 e.
Claims (10)
1. A manufacturing process of a split type motorcycle cylinder body is characterized by comprising the following steps,
s1, preparing: manufacturing a cooling sand core according to the shape of the cooling channel of the cylinder body, manufacturing a cast iron cylinder sleeve by using a centrifugal machine, and manufacturing an upper steel mould and a lower steel mould of the cylinder body through the shape of the cylinder body;
s2, putting the mold: correspondingly installing an upper steel die and a lower steel die of the cylinder body on a press machine, then correspondingly placing the prepared cooling sand core and the cast iron cylinder sleeve into the lower steel die, and then closing the dies;
s3, pouring aluminum liquid: pouring aluminum liquid along the reserved pouring gate, and enabling the aluminum liquid to flow into the mold cavity;
s4, taking out the cylinder block: after the aluminum liquid is poured in, the cylinder body is taken out after being solidified for 3 minutes, and the cylinder body is put into a container after being taken out for water cooling or natural air cooling;
s5, molding of cylinder block: and (4) carrying out sand removal treatment on the cooled cylinder body, and sequentially carrying out tempering and shot blasting on the treated cylinder body.
2. The manufacturing process of the split motorcycle cylinder block as set forth in claim 1, wherein: in S2, the cast iron cylinder sleeve needs to be heated to the same temperature as the molten aluminum before being placed into the mold.
3. The manufacturing process of the split motorcycle cylinder block as set forth in claim 1, wherein: in S2, when the cast iron cylinder sleeve and the cooling sand core are placed, a release agent needs to be punched in the upper steel die and the lower steel die, and two pouring ports for pouring molten aluminum are reserved between the upper steel die and the lower steel die.
4. The manufacturing process of the split motorcycle cylinder block as set forth in claim 1, wherein: in S2, the press machine is a tiltable press machine, and in S3, after the aluminum liquid is poured into the cavity, the press machine needs to tilt the upper steel die and the lower steel die to facilitate the aluminum liquid to enter the die cavity.
5. The manufacturing process of the split motorcycle cylinder block as set forth in claim 1, wherein: in S1, the cast iron cylinder liner needs to be tempered after the machining is completed.
6. The manufacturing process of the split motorcycle cylinder block as set forth in claim 1, wherein: the cylinder block comprises a shell (2), a cylinder sleeve hole (2a) which is through from top to bottom is formed in the shell (2), a cylinder sleeve (1) which is coaxial with the cylinder sleeve hole is formed in the cylinder sleeve hole (2a), a channeling-preventing structure which prevents the cylinder sleeve (1) from channeling is arranged on the periphery of the cylinder sleeve (1), an annular notch (2d) which extends from top to bottom is formed in the shell (2), the annular notch (2d) is arranged around the cylinder sleeve hole (2a) and is separated from the cylinder sleeve hole (2a), a liquid inlet (2e) which is the same as the annular notch (2d) is formed in the position, close to the lower end, of the middle of the left side of the shell (2), and the axis of the liquid inlet (2e) is perpendicular to the axis of the cylinder sleeve (1).
7. The manufacturing process of the split motorcycle cylinder block as set forth in claim 6, wherein: the anti-channeling structure comprises a first groove (2b) formed in the upper end of a shell (2) around a cylinder sleeve hole (2a), a first boss (1a) matched with the first groove (2b) is arranged at the upper end of the cylinder sleeve (1), a second groove (2c) is arranged at the lower end of the shell (2) around the cylinder sleeve hole (2a), a second boss (1b) matched with the second groove (2c) is arranged at the lower end, close to the lower end of the cylinder sleeve (1), of the shell (2) is flush with the upper end of the cylinder sleeve (1), and the lower end of the second boss (1b) is flush with the lower end of the shell (2).
8. The manufacturing process of the split motorcycle cylinder block as set forth in claim 7, wherein: cylinder liner (1) outside is located and sets up to friction surface (1c) between first arch (1a) and second arch (1b), be provided with a plurality of little bumps between friction surface (1c), the below that cylinder liner (1) outside is located second arch (1b) sets up to smooth surface (1d), evenly be provided with a plurality of contact protrusion (1f) on the outer arc surface of second boss (1b), be provided with in second scarce groove (2c) and contact corresponding contact recess (2i) with contact protrusion (1 f).
9. The manufacturing process of the split motorcycle cylinder block as set forth in claim 6, 7 or 8, wherein: the left side of annular scarce groove (2d) is provided with and lacks groove (2d) bottom by the annular and upwards extend and be cylindrical third arch (2f), the right side and the annular of third arch (2f) lack groove (2d) internal face contact, and the left side lacks the communicating position department of groove (2d) to inlet (2e) and annular and extends, the upper end of third arch (2f) is higher than inlet (2e) upper end.
10. The manufacturing process of the split motorcycle cylinder block as set forth in claim 6, 7 or 8, wherein: the annular lacks inslot (2d) interior upper and lower interval and is provided with at least one arc arch (2g), the width that arc arch (2g) lacked groove (2d) with the annular equals, and two adjacent arc archs (2g) that set up relatively, and the middle part of the arc arch (2g) of lower extreme is located the top that inlet (2e) and cooling channel (2d) communicate with each other the position department.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210025745.8A CN114406244A (en) | 2022-01-11 | 2022-01-11 | Manufacturing process of split type motorcycle cylinder body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210025745.8A CN114406244A (en) | 2022-01-11 | 2022-01-11 | Manufacturing process of split type motorcycle cylinder body |
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| CN202210025745.8A Pending CN114406244A (en) | 2022-01-11 | 2022-01-11 | Manufacturing process of split type motorcycle cylinder body |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025760A (en) * | 1989-06-09 | 1991-06-25 | Koronis Parts, Inc. | Die-cast liquid cooled cylinder and method of making |
| CN103028718A (en) * | 2011-09-30 | 2013-04-10 | 广西玉柴机器股份有限公司 | Casting method of diesel engine air cylinder |
| WO2013186055A2 (en) * | 2012-06-16 | 2013-12-19 | Volkswagen Aktiengesellschaft | Metal cast component and method for producing a metal cast component |
| CN205400915U (en) * | 2016-03-07 | 2016-07-27 | 重庆宗申发动机制造有限公司 | Motorcycle water -cooling engine cylinder block |
| CN105798268A (en) * | 2016-03-25 | 2016-07-27 | 杨洪彬 | Duplex metal composite engine cylinder block and manufacturing method thereof |
| CN112360614A (en) * | 2020-10-27 | 2021-02-12 | 重庆健森动力机械有限公司 | Cooling system of motorcycle engine |
-
2022
- 2022-01-11 CN CN202210025745.8A patent/CN114406244A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025760A (en) * | 1989-06-09 | 1991-06-25 | Koronis Parts, Inc. | Die-cast liquid cooled cylinder and method of making |
| CN103028718A (en) * | 2011-09-30 | 2013-04-10 | 广西玉柴机器股份有限公司 | Casting method of diesel engine air cylinder |
| WO2013186055A2 (en) * | 2012-06-16 | 2013-12-19 | Volkswagen Aktiengesellschaft | Metal cast component and method for producing a metal cast component |
| CN205400915U (en) * | 2016-03-07 | 2016-07-27 | 重庆宗申发动机制造有限公司 | Motorcycle water -cooling engine cylinder block |
| CN105798268A (en) * | 2016-03-25 | 2016-07-27 | 杨洪彬 | Duplex metal composite engine cylinder block and manufacturing method thereof |
| CN112360614A (en) * | 2020-10-27 | 2021-02-12 | 重庆健森动力机械有限公司 | Cooling system of motorcycle engine |
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