CN216922302U - High-temperature-resistant cylinder cover for motorcycle engine - Google Patents
High-temperature-resistant cylinder cover for motorcycle engine Download PDFInfo
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- CN216922302U CN216922302U CN202220038610.0U CN202220038610U CN216922302U CN 216922302 U CN216922302 U CN 216922302U CN 202220038610 U CN202220038610 U CN 202220038610U CN 216922302 U CN216922302 U CN 216922302U
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- end cover
- cooling
- cover
- temperature
- motorcycle engine
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Abstract
The high-temperature-resistant cylinder cover for the motorcycle engine comprises an upper end cover (1) and a lower end cover (2), wherein a detachable connecting mechanism (3) is arranged on the upper end cover (1), the upper end cover (1) is installed on the lower end cover (2) through the detachable connecting mechanism (3), a cooling liquid cavity (4) is formed between the upper end cover (1) and the lower end cover (2), cooling interfaces A (5) and B (6) are symmetrically arranged on two side portions of the upper end cover (1), and the cooling interfaces A (5) and B (6) are communicated with the cooling liquid cavity (4). The utility model has a water circulation cooling system, but can not reduce the mechanical load bearing capacity of the cylinder cover and can also reduce the manufacturing cost of the cylinder cover.
Description
Technical Field
The utility model belongs to the technical field of engine part structures, and particularly relates to a high-temperature-resistant cylinder cover for a motorcycle engine.
Background
The cylinder cover is used for sealing the cylinder, forms a combustion space together with the piston, is an important part of the combustion chamber of the engine, ensures smooth air intake of the combustion chamber, ignites gas and plays a role of the gas under high temperature and high pressure during combustion. The cylinder head is subjected to mechanical loads caused by gas forces and tightening of the cylinder bolts, and also to high thermal loads due to contact with high temperature combustion gases. In order to ensure good sealing of the cylinder, the cylinder head casting material should have sufficient strength and rigidity, and should also have high temperature resistance so as to prevent the cylinder head from being deformed by heat.
On the basis, because the cylinder cover continuously bears high temperature in the running process of the engine, the service life of the cylinder cover is seriously influenced by resisting the high temperature only by the material characteristics of the cylinder cover, a water circulation cooling system is often required to be arranged on the cylinder cover, the cylinder cover with the water circulation cooling system is generally integrally cast and formed at present, the method has high manufacturing process requirement and high difficulty, the maintenance is difficult in the subsequent use process, and the integrally cast water-cooling cavity structurally also reduces the mechanical load bearing capacity of the cylinder cover.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the high-temperature resistant cylinder cover for the motorcycle engine, which has a simple structure, is convenient to install, is provided with a water circulation cooling system, does not reduce the mechanical load bearing capacity of the cylinder cover, and can reduce the manufacturing cost and difficulty of the cylinder cover.
Second, the concrete technical scheme
A high-temperature-resistant cylinder cover for a motorcycle engine comprises an upper end cover and a lower end cover, wherein a detachable connecting mechanism is arranged on the upper end cover, the upper end cover is installed on the lower end cover through the detachable connecting mechanism, a cooling liquid cavity is arranged between the upper end cover and the lower end cover, a cooling interface A and a cooling interface B are symmetrically arranged on two sides of the upper end cover, and the cooling interface A and the cooling interface B are both communicated with the cooling liquid cavity;
The middle parts of the upper end cover and the lower end cover are respectively provided with a circular arch structure, the radians of the two circular arch structures are consistent, the center of the circular arch structure is provided with a mounting hole, and the two mounting holes are closely matched and mounted.
The realization principle is as follows: the upper end cover and the lower end cover are detachably buckled and installed together through the detachable connecting mechanism to form a complete cylinder cover, the upper end cover and the lower end cover are designed separately, the casting method of pouring is avoided, other machining methods can also be used for realizing finer manufacturing, the cost is lower without customizing a die, the cooling interface A and the cooling interface B are respectively a water inlet interface and a water outlet interface, and the cooling interface A and the cooling interface B are respectively arranged at two side parts of the upper end cover, so that cooling liquid can fully cover a cooling liquid cavity after entering from the cooling interface A to form a large-area cooling effect and then is discharged from the cooling interface B for heat dissipation; the upper end cover and the lower end cover are both provided with circular arch structures, the mechanical load capacity of the circular arch structures is higher, the two circular arch structures are tightly attached and installed together, a gap between the two circular arch structures can be covered by cooling liquid for cooling, but because the two circular arch structures are close to each other and are in contact with each other in a fitting manner, a cavity cannot be formed, the mechanical load capacity is reduced, and the circular arch structures on the upper end cover can also provide supporting assistance for the lower end cover.
Preferably, the method comprises the following steps: the detachable connecting mechanism comprises a connecting bolt and a nut structure, bolt mounting holes are further uniformly formed in the upper end cover, the connecting bolt penetrates through the bolt mounting holes to be matched with the nut structure, a spring gasket is further sleeved on the connecting bolt, and the spring gasket is arranged between the connecting bolt head and the upper end cover.
Preferably, the method comprises the following steps: the outer edge of the upper surface of the lower end cover is provided with a mounting platform in a surrounding manner, a cooling liquid cavity in the middle is formed by the mounting platform in a surrounding manner, the nut structure is arranged on the mounting platform, and the mounting platform is further provided with at least one circle of leakage-proof grooves.
Preferably, the method comprises the following steps: the upper end cover is evenly provided with a gasket groove, the gasket groove surrounds the top of the bolt mounting hole, and the spring gasket is flatly reamed in cooperation with the gasket groove.
Preferably, the method comprises the following steps: the bottom of the lower end cover is also uniformly provided with circulating flow guide holes which are communicated with cooling channels of the cooling liquid cavity and the air cylinder respectively, the inner diameter of the cooling interface A is larger than that of the cooling interface B, and the circulating flow guide holes which are far away from the cooling interface A and the cooling interface B are smaller.
Preferably, the method comprises the following steps: the lower end cover is characterized in that two side parts of the lower end cover are also provided with a taking lug structure, and the bottom of the lower end cover is also uniformly provided with cylinder cover mounting holes.
Preferably, the method comprises the following steps: the lower end cover is made of alloy cast iron or aluminum alloy, the upper end cover is made of common iron or iron alloy, the lower end cover is in contact with high-temperature gas in the cylinder, the alloy cast iron is high-temperature resistant and high in mechanical load, the aluminum alloy is good in heat conductivity, and the compression ratio of the engine can be improved.
The utility model has the beneficial effects that: the upper end cover and the lower end cover are separately designed, so that a casting method of pouring is avoided, other machining methods can be adopted to realize finer manufacturing, only the lower end cover is made of alloy cast iron or aluminum alloy, the upper end cover is made of common materials, the material cost can be reduced, and the cost of a die is not required to be customized and is lower; the circulating flow guide holes are different in size, the inner diameter of the cooling interface A is larger than that of the cooling interface B, namely the inner diameter of the water inlet interface is larger than that of the water outlet interface, so that the cooling liquid can fully cover an area needing cooling and heat reduction, the phenomenon that the heat in the cylinder is lost due to the fact that the cooling liquid circulates too fast is avoided, the energy conversion rate of the engine is reduced, the cooling liquid is only used for improving the continuous heat resistance of the cylinder cover, the heat which is originally used for acting is not taken away, and the inner diameter of the water inlet interface is large and is favorable for improving the speed of filling the cooling liquid into a cooling liquid cavity; the middle parts of the upper end cover and the lower end cover are respectively provided with a circular arch structure, the mechanical load capacity of the circular arch structures is higher, a gap between the two circular arch structures can be covered by cooling liquid for cooling, the two circular arch structures are tightly attached and installed together, a cavity cannot be formed, the mechanical load capacity is reduced, and the circular arch structures on the upper end cover can also provide support assistance for the lower end cover.
Drawings
Fig. 1 is an overall upper side structure diagram of the present invention.
Fig. 2 is a schematic view of the overall underside structure of the present invention.
Fig. 3 is a schematic structural view of the upper end cap of the present invention.
Fig. 4 is a schematic structural view of the lower end cap of the present invention.
Description of reference numerals: an upper end cover 1; a lower end cover 2; a detachable connection mechanism 3; a coolant cavity 4; cooling interface a 5; cooling interface B6; a dome-shaped structure 7; a mounting hole 8;
a mounting platform 21; the leakage preventing grooves 22; circulation flow guide holes 23; a handle structure 24; a cylinder head mounting hole 25; a positioning groove 26;
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example of implementation:
as shown in fig. 1, 2, 3 and 4: a high-temperature-resistant cylinder cover for a motorcycle engine is provided with an upper end cover 1 and a lower end cover 2, wherein the upper end cover 1 is provided with a detachable connecting mechanism 3, the upper end cover 1 is installed on the lower end cover 2 through the detachable connecting mechanism 3, a cooling liquid cavity 4 is arranged between the upper end cover 1 and the lower end cover 2, two side parts of the upper end cover 1 are symmetrically provided with a cooling interface A5 and a cooling interface B6, and both the cooling interface A5 and the cooling interface B6 are communicated with the cooling liquid cavity 4; the middle parts of the upper end cover 1 and the lower end cover 2 are respectively provided with a circular arch structure 7, the radians of the two circular arch structures 7 are consistent, the mounting holes 8 are formed in the centers of the circular arch structures 7, and the two mounting holes 8 are installed in a tight fit mode.
The detachable connecting mechanism 3 comprises a connecting bolt 31 and a nut structure 32, a bolt mounting hole 33 is further uniformly formed in the upper end cover 1, the connecting bolt 31 penetrates through the bolt mounting hole 33 to be matched with the nut structure 32, a spring gasket 34 is further sleeved on the connecting bolt 31, and the spring gasket 34 is arranged between the head of the connecting bolt 31 and the upper end cover 1.
The outer edge of the upper surface of the lower end cover 2 is provided with a mounting platform 21, a cooling liquid cavity 4 in the middle is formed by surrounding the mounting platform 21, a nut structure 32 is arranged on the mounting platform 21, the mounting platform 21 is also provided with a circle of leakage-proof grooves 22, the leakage-proof grooves 22 prevent a small amount of cooling liquid from leaking from a gap formed by buckling the upper end cover 1 and the lower end cover 2, and the similar purpose of sealing can be achieved by the structure method because the high-temperature environment of the cylinder cover is not suitable for using a sealing gasket.
The upper end cover 1 is also uniformly provided with a gasket groove 35, the gasket groove 35 is arranged around the top of the bolt mounting hole 33, and the spring gasket 34 is matched with the gasket groove 35 and reamed.
The bottom of the lower end cover 2 is also uniformly provided with circulating diversion holes 23, the circulating diversion holes 23 are respectively communicated with the cooling liquid cavity 4 and the cooling channel of the cylinder, the inner diameter of the cooling interface A5 is larger than that of the cooling interface B6, and the larger the distance from the circulating diversion holes 23 of the cooling interface A5 and the cooling interface B6, the smaller the distance from the circulating diversion holes 23 of the cooling interface A5 and the cooling interface B6. The cooling interface A5 is that the water inlet internal diameter is big to be favorable to improving the speed that the coolant liquid filled coolant liquid cavity 4, and cooling interface B6 is that the delivery port internal diameter is little, and the reason that the circulation water conservancy diversion hole 23 that keeps away from cooling interface A5 and cooling interface B6 more is less all for letting the coolant liquid stay a little longer in the cooling channel of coolant liquid cavity 4 and cylinder, in order to avoid taking away the heat of this work, even more avoid leading to the oil circuit to be difficult to ignite after the reduction of the internal heat of cylinder and lead to flame-out trouble.
The both sides portion of lower extreme cover 2 still is provided with the ear structure 24 of taking, has still evenly seted up cylinder cap mounting hole 25 in lower extreme cover 2 bottom, still is provided with constant head tank 26 at lower extreme cover 2 lower surface, and constant head tank 26 cooperates the location with the cylinder when being used for installing the cylinder head whole, and the cylinder cap mounting hole 25 of being convenient for aligns fast installs, and the ear structure 24 of taking is used for tearing open and is taken the stress point when taking the cylinder head whole, still has offered the circular slot atress of being convenient for at the ear structure 24 of taking.
The lower end cover 2 is made of alloy cast iron or aluminum alloy, the upper end cover 1 is made of common iron or iron alloy, the lower end cover 2 is in contact with high-temperature gas in the cylinder, the alloy cast iron is high-temperature resistant and high in mechanical load, the aluminum alloy is good in heat conductivity, and the compression ratio of the engine can be improved.
The utility model is realized by the following steps: the upper end cover 1 and the lower end cover 2 are detachably buckled and installed together through the detachable connecting mechanism 3 to form a complete cylinder cover, the upper end cover 1 and the lower end cover 2 are separately designed, casting methods of pouring are avoided, other machining methods can be adopted to achieve finer manufacturing, the cost is lower without customizing a die, a cooling interface A5 and a cooling interface B6 are respectively a water inlet interface and a water outlet interface which are respectively arranged at two side parts of the upper end cover, and cooling liquid can fully cover the cooling liquid cavity 4 after entering from the cooling interface A5 to form a large-area cooling effect and then is discharged from the cooling interface B6 to dissipate heat; the middle parts of the upper end cover 1 and the lower end cover 2 are respectively provided with a circular arch structure, the mechanical load capacity of the circular arch structures is higher, the two circular arch structures are tightly attached and installed together, a gap between the two circular arch structures can be covered by cooling liquid for cooling, but because the two circular arch structures are close to each other and are attached and contacted, a cavity can not be formed, the mechanical load capacity is reduced, and the circular arch structures on the upper end cover 1 can also provide supporting assistance for the lower end cover 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims.
Claims (7)
1. A high temperature resistant cylinder head for motorcycle engine, its characterized in that: the cooling device comprises an upper end cover (1) and a lower end cover (2), wherein a detachable connecting mechanism (3) is arranged on the upper end cover (1), the upper end cover (1) is installed on the lower end cover (2) through the detachable connecting mechanism (3), a cooling liquid cavity (4) is arranged between the upper end cover (1) and the lower end cover (2), cooling interfaces A (5) and B (6) are symmetrically arranged on two sides of the upper end cover (1), and the cooling interfaces A (5) and B (6) are communicated with the cooling liquid cavity (4);
the middle parts of the upper end cover (1) and the lower end cover (2) are respectively provided with a circular arch structure (7), the radians of the two circular arch structures (7) are consistent, the center of the circular arch structure (7) is provided with a mounting hole (8), and the two mounting holes (8) are closely matched and mounted.
2. A high-temperature-resistant cylinder head for a motorcycle engine according to claim 1, characterized in that: detachable connecting mechanism (3) is including connecting bolt (31) and nut structure (32) bolt mounting hole (33) have still evenly been seted up in upper end cover (1), connecting bolt (31) pass this bolt mounting hole (33) with nut structure (32) cooperation still cover on connecting bolt (31) is equipped with spring gasket (34), and this spring gasket (34) set up between connecting bolt (31) head and upper end cover (1).
3. A high-temperature-resistant cylinder head for a motorcycle engine according to claim 2, characterized in that: the outer edge of lower extreme cover (2) upper surface encircles and is provided with mounting platform (21), encircles coolant liquid cavity (4) that form the middle part through this mounting platform (21), nut structure (32) set up on this mounting platform (21), mounting platform (21) still are provided with at least round leak protection slot (22).
4. A high-temperature-resistant cylinder head for a motorcycle engine according to claim 2, characterized in that: the upper end cover (1) is further uniformly provided with a gasket groove (35), the gasket groove (35) surrounds the top of the bolt mounting hole (33), and the spring gasket (34) is matched with the gasket groove (35) for spot facing.
5. A high-temperature-resistant cylinder head for a motorcycle engine according to claim 1, characterized in that: the bottom of the lower end cover (2) is also uniformly provided with circulating flow guide holes (23), the circulating flow guide holes (23) are communicated with cooling channels of the cooling liquid cavity (4) and the cylinder respectively, the inner diameter of the cooling interface A (5) is larger than that of the cooling interface B (6), and the circulating flow guide holes (23) far away from the cooling interface A (5) and the cooling interface B (6) are smaller.
6. A high-temperature-resistant cylinder head for a motorcycle engine according to claim 1, characterized in that: the lower end cover is characterized in that two side parts of the lower end cover (2) are further provided with a taking ear structure (24), and cylinder cover mounting holes (25) are further uniformly formed in the bottom of the lower end cover (2).
7. A high-temperature-resistant cylinder head for a motorcycle engine according to claim 1, characterized in that: the lower end cover (2) is made of alloy cast iron or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220038610.0U CN216922302U (en) | 2022-01-06 | 2022-01-06 | High-temperature-resistant cylinder cover for motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220038610.0U CN216922302U (en) | 2022-01-06 | 2022-01-06 | High-temperature-resistant cylinder cover for motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922302U true CN216922302U (en) | 2022-07-08 |
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ID=82256762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220038610.0U Active CN216922302U (en) | 2022-01-06 | 2022-01-06 | High-temperature-resistant cylinder cover for motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922302U (en) |
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2022
- 2022-01-06 CN CN202220038610.0U patent/CN216922302U/en active Active
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