CN210087490U - Wet-to-dry cylinder device of multi-cylinder diesel engine - Google Patents
Wet-to-dry cylinder device of multi-cylinder diesel engine Download PDFInfo
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- CN210087490U CN210087490U CN201920483254.1U CN201920483254U CN210087490U CN 210087490 U CN210087490 U CN 210087490U CN 201920483254 U CN201920483254 U CN 201920483254U CN 210087490 U CN210087490 U CN 210087490U
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Abstract
A multi-cylinder diesel engine wet changes the dry cylinder body device, the axle center of the upper cylinder sleeve hole and lower cylinder sleeve hole is set up coaxially, set up the wet-type bush in the upper cylinder sleeve hole and lower cylinder sleeve hole; a water hole is reserved on the top surface of the cylinder body corresponding to the cylinder body of the water cooling cavity; the outer diameter of the lower part of the wet bushing is arranged corresponding to the inner diameter of the anti-sinking platform of the wet bushing, and the wet bushing is internally provided with a dry cylinder sleeve; a groove table is reserved on the upper opening of the wet bushing and the upper cylinder sleeve hole, a compression ring is reserved on the outer side of the upper opening of the dry cylinder sleeve corresponding to the groove table, and the compression ring is arranged in the groove table; a screw hole is reserved in the top surface of the cylinder body around the center of the dry cylinder sleeve; the utility model is characterized in that a wet bush is arranged in a water cooling cavity of a diesel engine cylinder body, and a dry cylinder sleeve is arranged on the wet bush and is a cylinder sleeve with a dry-wet fit; the telescopic rate of the cylinder body and the wet cylinder sleeve can be reduced, the performance of the cylinder sleeve and the strength of the diesel engine cylinder body can be improved, and the service life of the diesel engine can be prolonged.
Description
Technical Field
The utility model relates to a multi-cylinder diesel engine cylinder body, especially a multi-cylinder diesel engine wet-type changes dry-type cylinder body device.
Background
At present, with the continuous promotion of the subsidy policy of agricultural machinery in China, agricultural machinery in China is fully developed in recent years, and the power and performance requirements of diesel engine for agricultural machinery are higher and higher; the material quality, the mechanical processing and the like of the diesel engine industry for agricultural machinery are correspondingly improved. In order to improve the power of the diesel engine, the power of the diesel engine can be improved or the performance of the diesel engine can be improved by a series of processes of increasing the cylinder diameter of the diesel engine, increasing the stroke of a piston, supercharging and inter-cooling and the like, but the existing diesel engine cylinders adopt wet cylinders and dry cylinders: the wet cylinder sleeve of the wet cylinder body is high-temperature and high-pressure, the outer side of the wet cylinder sleeve is a water-cooling cavity, when heat exchange is carried out on two sides of the wet cylinder sleeve in the working process, the cylinder body and the wet cylinder sleeve are not synchronous in extension and retraction, the bending resistance, the torsional strength and the sealing property of the wet cylinder sleeve are poor, the sealing performance of the water cavity of the cylinder body is reduced, and water seepage is easily caused; when the dry cylinder body is cast, the water cavity is a narrow cavity, so that the casting difficulty and the sand cleaning difficulty are increased, and special process holes need to be designed for completion. In view of the above, a cylinder device for changing a wet type cylinder device into a dry type cylinder device for a multi-cylinder diesel engine is proposed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming that what current diesel engine cylinder body adopted is wet-type cylinder body, dry-type cylinder body: the wet cylinder sleeve of the wet cylinder body is high-temperature and high-pressure, the outer side of the wet cylinder sleeve is a water-cooling cavity, when heat exchange is carried out on two sides of the wet cylinder sleeve in the working process, the cylinder body and the wet cylinder sleeve are not synchronous in extension and retraction, the bending resistance, the torsional strength and the sealing property of the wet cylinder sleeve are poor, the sealing performance of the water cavity of the cylinder body is reduced, and water seepage is easily caused; when the dry cylinder body is cast, the water cavity is a narrow cavity, so that the casting difficulty and the sand cleaning difficulty are increased, and special fabrication holes are required to be designed for completion; through reasonable design, the utility model provides a cylinder device for changing a wet type cylinder into a dry type cylinder of a multi-cylinder diesel engine, the utility model is characterized in that a wet type bush is arranged in a water cooling cavity of a cylinder body of the diesel engine, and a dry type cylinder sleeve is arranged on the wet type bush and is a cylinder sleeve which is in accordance with the dry type and the wet type; the dry cylinder sleeve and the cooling water of the water cooling cavity indirectly exchange heat, the dry cylinder sleeve and the wet bushing are in double-layer fit, the telescopic rate of the cylinder body and the wet cylinder sleeve can be reduced, and the bending resistance, the torsional strength, the sealing property and the sealing property of the cylinder sleeve are improved, so that the wet cylinder body is processed into the dry cylinder body, and the aims of increasing the cylinder diameter of the diesel engine, further increasing the power of the diesel engine and improving the performance of the diesel engine are fulfilled; the cooling water cavity is opened during casting, the casting sand removal operation is simple, and a fabrication hole is not needed; on the premise of not changing the appearance size of the diesel engine cylinder body, the strength of the diesel engine cylinder body is improved while the cylinder diameter of the diesel engine is increased, the power of the diesel engine is increased, the performance of the diesel engine is improved, the reliability of the diesel engine is considered, and the service life of the diesel engine is prolonged.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a cylinder device for changing a wet type cylinder into a dry type cylinder of a multi-cylinder diesel engine comprises: the device comprises a cylinder body top surface, a cylinder body lower waistband, a front end clapboard, a rear end clapboard, an outer side clapboard, an inner side clapboard, an upper cylinder sleeve hole, a screw hole, a water hole, a lower cylinder sleeve hole, a wet bushing, a dry cylinder sleeve, a wet bushing anti-sinking platform, a water cooling cavity, an oil extraction machine cylinder sleeve and a middle clapboard; the upper part of the oil extraction cylinder sleeve is arranged as the top surface of a cylinder body, the front end and the rear end of the oil extraction cylinder sleeve are symmetrically provided with a front end clapboard and a rear end clapboard, the outer side and the inner side of the oil extraction cylinder sleeve are respectively provided with an outer side clapboard and an inner side clapboard, the middle part of the oil extraction cylinder sleeve is provided with at least one middle clapboard, and two water cooling cavities are reserved between the two sides of the middle clapboard and the oil extraction cylinder sleeve in a communication way; the mouth parts of the oil extraction machine cylinder sleeves on the two sides of the middle partition plate are respectively provided with an upper cylinder sleeve hole, and the upper cylinder sleeve holes are concentric with the center of the water cooling cavity; the lower part of a cylinder sleeve of the oil extraction machine is provided with a lower cylinder sleeve, the upper part of the inner side of the lower cylinder sleeve is provided with a lower cylinder sleeve hole, the lower part of the inner side of the lower cylinder sleeve is reserved with an annular wet-type bush anti-sinking platform, the lower cylinder sleeve hole is concentric with the center of a water cooling cavity, the axes of the upper cylinder sleeve hole and the lower cylinder sleeve hole are coaxially arranged, and wet-type bushes are arranged in the upper cylinder sleeve hole and the lower cylinder sleeve hole; a water hole is reserved on the top surface of the cylinder body corresponding to the cylinder body of the water cooling cavity;
the outer diameter of the lower part of the wet bushing is arranged corresponding to the inner diameter of the anti-sinking platform of the wet bushing, and the wet bushing is internally provided with a dry cylinder sleeve; a groove table is reserved on the upper opening of the wet bushing and the upper cylinder sleeve hole, a compression ring is reserved on the outer side of the upper opening of the dry cylinder sleeve corresponding to the groove table, and the compression ring is arranged in the groove table; screw holes are reserved in the top surface of the cylinder body around the center of the dry cylinder sleeve.
The processing and mounting steps are as follows:
the upper cylinder sleeve hole, the lower cylinder sleeve hole and the screw hole of the wet cylinder body of the diesel engine cylinder body are processed according to the size corresponding to the wet bush, the wet bush is pressed in after heating, and then the wet cylinder body is processed according to the structure and the size corresponding to the dry cylinder sleeve. In order to prevent the wet bush from sinking due to insufficient friction force generated by interference in diesel engine assembly, a wet bush sinking prevention platform is arranged on the lower waistband surface.
After the alloy wet bushing is pressed in, the inner hole of the wet bushing is finely bored and honed according to the matching size of the piston, and the dry cylinder sleeve is not assembled.
The wet cylinder body is manufactured by processing an upper cylinder sleeve hole, a lower cylinder sleeve hole and screw holes of the wet cylinder body according to the size corresponding to the wet bush, freezing the wet bush, then loading the wet bush into the cylinder body, and processing the cylinder body.
The top surface or the lower waistband surface is provided with a conical surface hole matched with the wet bushing to replace a wet bushing sinking prevention platform to prevent the wet bushing sinking.
After the upper cylinder sleeve hole, the lower cylinder sleeve hole and the screw hole are processed according to the corresponding size of the wet bushing, the wet bushing is bonded and solidified with the upper cylinder sleeve hole and the lower cylinder sleeve hole by using inorganic adhesive or cylindrical holding glue.
The top surface or the lower waistband surface is provided with a threaded hole matched with the wet bushing to replace a wet bushing sinking prevention platform to prevent the wet bushing from sinking, and inorganic adhesive or cylindrical holding glue is used for bonding and curing between the wet bushing and the upper cylinder sleeve hole and between the wet bushing and the lower cylinder sleeve hole.
Has the advantages that: the utility model is characterized in that a wet bush is arranged in a water cooling cavity of a diesel engine cylinder body, and a dry cylinder sleeve is arranged on the wet bush and is a cylinder sleeve with a dry-wet fit; the dry cylinder sleeve and the cooling water of the water cooling cavity indirectly exchange heat, the dry cylinder sleeve and the wet bushing are in double-layer fit, the telescopic rate of the cylinder body and the wet cylinder sleeve can be reduced, and the bending resistance, the torsional strength, the sealing property and the sealing property of the cylinder sleeve are improved, so that the wet cylinder body is processed into the dry cylinder body, and the aims of increasing the cylinder diameter of the diesel engine, further increasing the power of the diesel engine and improving the performance of the diesel engine are fulfilled; the cooling water cavity is opened during casting, the casting sand removal operation is simple, and a fabrication hole is not needed; on the premise of not changing the appearance size of the diesel engine cylinder body, the strength of the diesel engine cylinder body is improved while the cylinder diameter of the diesel engine is increased, the power of the diesel engine is increased, the performance of the diesel engine is improved, the reliability of the diesel engine is considered, and the service life of the diesel engine is prolonged.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a schematic view of the assembly structure;
FIG. 2 is a schematic top view of the structure of FIG. 1;
in fig. 1 and 2: the cylinder comprises a cylinder top surface 1, a cylinder lower waistband 2, a front end partition plate 3, a rear end partition plate 4, an outer side partition plate 5, an inner side partition plate 6, an upper cylinder sleeve hole 7, a screw hole 8, a water hole 9, a lower cylinder sleeve hole 10, a wet type bushing 11, a dry type cylinder sleeve 12, a wet type bushing anti-sinking platform 13, a water cooling cavity 14, an oil extraction cylinder sleeve 15 and a middle partition plate 16.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
the upper part of the oil extraction cylinder sleeve 15 is provided with a cylinder body top surface 1, the front end and the rear end of the oil extraction cylinder sleeve 15 are symmetrically provided with a front end baffle plate 3 and a rear end baffle plate 4, the outer side and the inner side of the oil extraction cylinder sleeve 15 are respectively provided with an outer side baffle plate 5 and an inner side baffle plate 6, the middle part of the oil extraction cylinder sleeve 15 is provided with at least one middle baffle plate 16, and two water cooling cavities 14 are reserved between the two sides of the middle baffle plate 16 and the oil extraction cylinder sleeve 15; the mouth parts of the oil extraction cylinder sleeves 15 on the two sides of the middle partition plate 16 are respectively provided with an upper cylinder sleeve hole 7, and the upper cylinder sleeve holes 7 are concentric with the center of the water-cooling cavity 14; the lower part of the cylinder sleeve 15 of the oil extraction machine is provided with a cylinder body lower belt 2, the upper part of the inner side of the cylinder body lower belt 2 is provided with a lower cylinder sleeve hole 10, the lower part of the inner side of the cylinder body lower belt 2 is reserved with an annular wet type bush anti-sinking platform 13, the center of the lower cylinder sleeve hole 10 and the center of a water cooling cavity 14 are concentric, the axes of the upper cylinder sleeve hole 7 and the lower cylinder sleeve hole 10 are coaxially arranged, and the wet type bush 11 is arranged in the upper cylinder sleeve hole 7 and the lower cylinder sleeve hole 10; a water hole 9 is reserved on the cylinder body of the water cooling cavity 14 corresponding to the cylinder body top surface 1;
the outer diameter of the lower part of the wet bush 11 is arranged corresponding to the inner diameter of the wet bush anti-sinking platform 13, and the wet bush 11 is internally provided with a dry cylinder sleeve 12; a groove table is reserved on the wet-type bush 11 and the upper opening of the upper cylinder sleeve hole 7, a compression ring is reserved on the outer side of the upper opening of the dry-type cylinder sleeve 12 corresponding to the groove table, and the compression ring is arranged in the groove table; the cylinder top surface 1 is reserved with a screw hole 8 around the center of the dry cylinder liner 12.
Claims (2)
1. A cylinder device for changing a wet type cylinder into a dry type cylinder of a multi-cylinder diesel engine comprises: the device comprises a cylinder body top surface (1), a cylinder body lower belt (2), a front end partition plate (3), a rear end partition plate (4), an outer side partition plate (5), an inner side partition plate (6), an upper cylinder sleeve hole (7), a screw hole (8), a water hole (9), a lower cylinder sleeve hole (10), a wet type bushing (11), a dry type cylinder sleeve (12), a wet type bushing anti-sinking platform (13), a water cooling cavity (14), an oil extraction machine cylinder sleeve (15) and a middle partition plate (16); the method is characterized in that: the upper part of the oil extraction cylinder sleeve (15) is provided with a cylinder body top surface (1), the front end and the rear end of the oil extraction cylinder sleeve (15) are symmetrically provided with a front end clapboard (3) and a rear end clapboard (4), the outer side and the inner side of the oil extraction cylinder sleeve (15) are respectively provided with an outer side clapboard (5) and an inner side clapboard (6), the middle part of the oil extraction cylinder sleeve (15) is provided with at least one middle clapboard (16), and two water cooling cavities (14) are reserved between the two sides of the middle clapboard (16) and the oil extraction cylinder sleeve (15); the mouth parts of the oil extraction machine cylinder sleeves (15) on the two sides of the middle partition plate (16) are respectively provided with an upper cylinder sleeve hole (7), and the upper cylinder sleeve holes (7) and the center of the water cooling cavity (14) are arranged concentrically; the lower part of a cylinder sleeve (15) of the oil extraction machine is provided with a cylinder body lower belt (2), the upper part of the inner side of the cylinder body lower belt (2) is provided with a lower cylinder sleeve hole (10), the lower part of the inner side of the cylinder body lower belt (2) is reserved with an annular wet bush anti-sinking platform (13), the center of the lower cylinder sleeve hole (10) and the center of a water cooling cavity (14) are arranged concentrically, the axes of an upper cylinder sleeve hole (7) and the lower cylinder sleeve hole (10) are arranged coaxially, and a wet bush (11) is arranged in the upper cylinder sleeve hole (7) and the lower cylinder sleeve hole (10); a water hole (9) is reserved on the top surface (1) of the cylinder body corresponding to the cylinder body of the water cooling cavity (14).
2. The cylinder device for changing a multi-cylinder diesel engine into a dry type from a wet type according to claim 1, wherein: the outer diameter of the lower part of the wet bush (11) is arranged corresponding to the inner diameter of the wet bush anti-sink table (13), and a dry cylinder sleeve (12) is arranged in the wet bush (11); a groove table is reserved at the upper openings of the wet bush (11) and the upper cylinder sleeve hole (7), a compression ring is reserved at the outer side of the upper opening of the dry cylinder sleeve (12) corresponding to the groove table, and the compression ring is arranged in the groove table; a screw hole (8) is reserved in the top surface (1) of the cylinder body around the center of the dry cylinder sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483254.1U CN210087490U (en) | 2019-04-10 | 2019-04-10 | Wet-to-dry cylinder device of multi-cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483254.1U CN210087490U (en) | 2019-04-10 | 2019-04-10 | Wet-to-dry cylinder device of multi-cylinder diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087490U true CN210087490U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920483254.1U Active CN210087490U (en) | 2019-04-10 | 2019-04-10 | Wet-to-dry cylinder device of multi-cylinder diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087490U (en) |
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- 2019-04-10 CN CN201920483254.1U patent/CN210087490U/en active Active
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