CN116241382B - Compression-resistant composite cylinder sleeve and casting equipment thereof - Google Patents
Compression-resistant composite cylinder sleeve and casting equipment thereof Download PDFInfo
- Publication number
- CN116241382B CN116241382B CN202310513303.2A CN202310513303A CN116241382B CN 116241382 B CN116241382 B CN 116241382B CN 202310513303 A CN202310513303 A CN 202310513303A CN 116241382 B CN116241382 B CN 116241382B
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- Prior art keywords
- cylinder
- cavity
- ceramic bushing
- support body
- inner support
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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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
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
-
- 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
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
- B22D13/107—Means for feeding molten metal
-
- 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
-
- 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
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
Abstract
The invention relates to the field of cylinder sleeve casting, in particular to a compression-resistant composite cylinder sleeve and casting equipment thereof, which comprises a die cylinder, wherein the die cylinder is provided with a cylindrical cavity with two ends communicated, and a ceramic bushing is arranged in the cavity; the rotating device is used for driving the die cylinder to rotate; the inner support body penetrates into the ceramic bushing from one end of the mold cylinder, so that the ceramic bushing and the cavity of the mold cylinder are coaxially distributed; the column seal body is connected with the inner support body through the other end of the mold cylinder, so that the axial position of the ceramic bushing is fixed, and a forming cavity is formed between the ceramic bushing and the inner wall of the mold cylinder; the invention forms a molding cavity for casting the steel sleeve between the ceramic bushing and the mold cylinder, and the molten metal is injected into the molding cavity in a rotating state, and gradually solidifies to form the steel sleeve after the molding cavity is filled with the molten metal, so that the steel sleeve and the ceramic bushing are fixed into a whole, the overall bonding strength is higher, and the production process is simplified.
Description
Technical Field
The invention relates to the field of cylinder sleeve casting, in particular to a compression-resistant composite cylinder sleeve and casting equipment thereof.
Background
The cylinder sleeve is inlaid in a cylinder barrel of the cylinder body, forms a combustion chamber together with the piston and the cylinder cover, has outstanding advantages for the composite cylinder sleeve according to different use environments and different material requirements, and is formed by a pressure-bearing metal outer sleeve and a high-wear-resistance ceramic lining, and is precisely machined and assembled into an integrated cylinder sleeve, and the ceramic lining is a ceramic layer with high hardness, high wear resistance and good erosion resistance, so that the service life of the cylinder sleeve is greatly prolonged.
The centrifugal casting mode of the cylinder sleeve has the advantages that castings without shrinkage cavities, air holes and slag inclusion can be obtained through centrifugal casting, the structure is fine, the mechanical property is good, the production mode of the metal-ceramic composite cylinder sleeve is that a metal cylinder part and a ceramic cylinder part are respectively and independently produced, then the metal cylinder part and the ceramic cylinder part are integrally cast, the working procedure is complex, and the bonding strength of the obtained composite cylinder sleeve needs to be improved.
Disclosure of Invention
The invention aims to solve the following problems in the prior art: the traditional metal-ceramic composite cylinder sleeve is produced by respectively and independently producing a metal cylinder part and a ceramic cylinder part, and then pouring the metal cylinder part and the ceramic cylinder part into a whole, so that the process is complex, and the bonding strength of the obtained composite cylinder sleeve needs to be improved.
In order to solve the problems in the prior art, the invention provides a compression-resistant composite cylinder sleeve which comprises a steel sleeve and a ceramic bushing, wherein a caulking groove is formed in the inner wall of the steel sleeve, a protrusion is arranged on the outer wall of the ceramic bushing, and the ceramic bushing is arranged in the steel sleeve, and the protrusion and the caulking groove are aligned and combined to enable the steel sleeve and the ceramic bushing to be combined into a whole.
A casting apparatus for producing the compression-resistant composite cylinder liner, comprising:
the mold cylinder is provided with a cylindrical cavity with two through ends, and the ceramic bushing is arranged in the cavity;
the rotating device is used for driving the die cylinder to rotate;
the inner support body penetrates into the ceramic bushing from one end of the mold cylinder, so that the ceramic bushing and the cavity of the mold cylinder are coaxially distributed;
the column sealing body is connected with the inner supporting body through the other end of the mold cylinder, so that the axial position of the ceramic bushing is fixed, and a forming cavity is formed between the ceramic bushing and the inner wall of the mold cylinder;
and the injection hopper is communicated with the forming cavity through the column sealing body part and is used for introducing molten metal liquid into the forming cavity and solidifying the molten metal liquid in the forming cavity to form the steel sleeve.
Preferably, the axis part of the column sealing body is provided with a material cavity, the material injection hopper is rotationally communicated with the material cavity, the column sealing body is embedded into a port of the mold cylinder, and the edge of the column sealing body is provided with a material inlet for connecting the molding cavity and the material cavity.
Preferably, the feeding hole is parallel to the axis of the forming cavity, the inner end and the outer end of the feeding hole are respectively communicated with the forming cavity and the outer space of the column sealing body, the feeding cavity is communicated with the middle part of the feeding hole, the thimble is slidably matched in the feeding hole, a pushing assembly is arranged outside the column sealing body and used for pushing the thimble to slide in the feeding hole and for blocking or opening the inner end of the feeding hole.
Preferably, the propelling component comprises a ring, the ring is fixedly connected with the thimble, a threaded part is coaxially fixed outside the column seal body, a threaded sleeve is connected to the surface of the threaded part in a threaded manner, and the ring is rotatably sleeved outside the threaded sleeve.
Preferably, the radial dimension of the material cavity is gradually increased from the material injection hopper to the forming cavity, so that the material cavity forms a truncated cone shape.
Preferably, the diameter of the inner support body is adapted to the inner diameter of the ceramic bushing, the outer end of the inner support body is provided with an expanding part for blocking one end of the inner support body to be aligned with the mold cylinder, the inner end of the inner support body is provided with a positioning hole, and the inner end of the column seal body is fixed with a positioning column which is in threaded connection with the positioning hole, so that the column seal body is connected with the inner support body integrally.
Preferably, the expanding part of the inner support body is provided with a ring groove at the position corresponding to the forming cavity, the center part of the inner support body is provided with a through groove, and the ring groove is communicated with the external environment through the through groove.
Preferably, the rotating device comprises a motor and two groups of rollers which are distributed in parallel, the two groups of rollers roll and support the die cylinder, and the motor is connected with the two groups of rollers through belt transmission.
Compared with the related art, the compression-resistant composite cylinder sleeve and the casting equipment thereof provided by the invention have the following beneficial effects:
the invention adopts the die cylinder, the inner support body and the column sealing body to intensively position the ceramic bushing, so that a molding cavity for casting the steel sleeve is formed between the ceramic bushing and the die cylinder, molten metal is injected into the molding cavity in a rotating state, and the molten metal is gradually solidified to form the steel sleeve after filling the molding cavity, so that the steel sleeve and the ceramic bushing are fixed into a whole, the integral bonding strength is higher, and the production process is simplified.
Drawings
FIG. 1 is a schematic view of a composite cylinder liner according to the present invention;
FIG. 2 is a second schematic view of the composite cylinder liner according to the present invention;
FIG. 3 is a schematic view of the overall structure of the cylinder liner casting apparatus of the present invention;
FIG. 4 is a second schematic view of the overall structure of the cylinder liner casting apparatus of the present invention;
FIG. 5 is a schematic cross-sectional view of a casting apparatus of the present invention;
FIG. 6 is a schematic view of a column seal according to the present invention;
fig. 7 is a schematic view of the structure of the inner support body of the present invention.
Reference numerals in the drawings: 1. a steel sleeve; 11. a caulking groove; 2. a ceramic bushing; 21. a protrusion; 3. a motor; 31. a roller; 32. a toothed plate; 4. a mold cylinder; 5. an inner support body; 51. a ring groove; 52. a through groove; 53. positioning holes; 6. a column seal body; 61. positioning columns; 62. a material cavity; 63. a feed hole; 64. a threaded portion; 7. a thread sleeve; 71. a loop; 72. a thimble; 8. a filling hopper; 9. and forming a cavity.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
Example 1
As shown in fig. 1-2, the compression-resistant composite cylinder sleeve is provided with a steel sleeve 1 and a ceramic bushing 2, wherein the ceramic bushing 2 is concentrically arranged in the steel sleeve 1, a caulking groove 11 is formed in the inner wall of the steel sleeve 1, a protrusion 21 is integrally fixed on the outer wall of the ceramic bushing 2, and the steel sleeve 1 and the ceramic bushing 2 are combined into a whole through the alignment combination of the protrusion 21 and the caulking groove 11.
The production process of the composite cylinder sleeve comprises the following steps:
firstly, forming a ceramic bushing 2 blank, then sintering to form a ceramic bushing 2, placing the ceramic bushing 2 in casting equipment, and directly centrifugally casting outside the ceramic bushing 2 to form a steel sleeve 1, wherein the ceramic bushing 2 and the steel sleeve 1 are stably combined, and the processing technology is convenient;
as shown in fig. 3-4, the casting equipment of the compression-resistant composite cylinder sleeve comprises a die cylinder 4, wherein the die cylinder 4 is provided with two split bodies, the two split bodies are fixed into a whole through screws, the die cylinder 4 is provided with a cylindrical cavity with two through ends, and the outer wall of the die cylinder 4 is provided with two annular rollaway nest;
the rotating device comprises a motor 3, the motor 3 is arranged on the surface of a bottom plate, two groups of rollers 31 which are distributed in parallel are symmetrically arranged on the surface of the bottom plate, the rollers 31 are rotationally connected with the bottom plate, the two groups of rollers 31 roll on a rollaway nest on the surface of a positioning die cylinder 4 and are used for supporting the rolling support die cylinder 4, and the motor 3 is connected with the two groups of rollers 31 through belt transmission;
the motor 3 drives the two groups of rollers 31 to rotate in the same direction, and the mold cylinder 4 rotates under the action of friction force;
as shown in fig. 3-5, two ends of the mold cylinder 4 are respectively provided with an inner support body 5 and a column seal body 6, the main body part of the inner support body 5 is cylindrical, the end part of the inner support body 5 is provided with an expanding part, the diameter of the expanding part is larger than the inner cavity size of the mold cylinder 4, the inner support body 5 is inserted into the mold cylinder 4 from one end of the mold cylinder 4, the outer end of the inner support body 5 is blocked by the expanding part to the end part of the Ji Mo cylinder 4, and a positioning hole 53 is formed in the center position of the inner end of the inner support body 5;
as shown in fig. 6, the column seal body 6 is a cylinder, the main body diameter of the column seal body is matched with the inner cavity of the mold cylinder 4, a material cavity 62 is arranged at the axle center part of the column seal body 6, the material cavity 62 penetrates through the outer end of the column seal body 6, the material cavity 62 is rotationally communicated with the material injection hopper 8, the material injection hopper 8 and the bottom plate are kept fixed, and a positioning column 61 is fixed at the center position of the inner end of the column seal body 6;
as shown in fig. 7, the ceramic bushing 2 is placed in the cavity of the mold cylinder 4, the inner support body 5 is penetrated into the inner support body from one end of the mold cylinder 4, so that the ceramic bushing 2 is sleeved outside the inner support body 5, the axial position of the ceramic bushing 2 is fixed, the column seal body 6 is inserted into the inner support body from the other end of the mold cylinder 4, the ceramic bushing 2 is fixed in position by the threaded connection of the positioning column 61 and the positioning hole 53, a forming cavity 9 is arranged between the ceramic bushing 2 and the inner wall of the mold cylinder 4, and the edge of the column seal body 6 is provided with a feeding hole 63 for connecting the forming cavity 9 and a material cavity 62;
the motor 3 drives the roller 31 to drive the mold cylinder 4 to rotate, the injection hopper 8 is kept motionless, molten metal is added into the injection hopper 8, the molten metal enters the material cavity 62 again, the molten metal enters the forming cavity 9 through the feeding hole 63 under the action of centrifugal force, the molten metal is gradually added to fill the forming cavity 9, the molten metal is gradually solidified in the forming cavity 9 to form the steel sleeve 1 under the action of centrifugal force, and at the moment, the steel sleeve 1 is combined with the ceramic lining 2 into a whole;
when the molten metal is not completely cooled, the motor 3 is closed to rotate and separate the inner support body 5 and the column seal body 6, the mold cylinder 4 is pulled out axially, then the two split bodies of the mold cylinder 4 are disassembled, and the steel sleeve 1 and the ceramic bushing 2 which are integrated are taken out;
as shown in fig. 5, the radial dimension of the material cavity 62 gradually increases from the material injection hopper 8 to the forming cavity 9, so that the material cavity 62 forms a truncated cone shape, and molten metal is easily and rapidly introduced into the forming cavity 9 under the action of centrifugal force.
Example two
In the casting process, molten metal enters the forming cavity 9 from one end of the column seal body 6, air in the forming cavity 9 needs to be discharged, the molten metal is favorable for filling the whole forming cavity 9, and the exhaust operation is as follows:
as shown in fig. 5 and 7, a ring groove 51 is formed at the position of the expanding part of the inner support body 5 opposite to the forming cavity 9, a through groove 52 is formed inwards from the central part of the outer end surface of the inner support body 5, the through groove 52 extends to the edge and is communicated with the ring groove 51, and the ring groove 51 is communicated with the external environment through the through groove 52;
the molten metal enters the forming cavity 9, so that air in the forming cavity 9 is discharged from the annular groove 51 and the through groove 52, when the forming cavity 9 is filled with the molten metal, the annular groove 51 is filled with the molten metal, but the molten metal cannot enter the through groove 52 under the action of centrifugal force, one end of the steel sleeve 1 formed later is partially increased, and the excessive material of the part needs to be removed through grinding.
Example III
When the molten metal fills the forming cavity 9, the molten metal also enters the inner opening of the feeding hole 63, and when the molten metal solidifies, the feeding hole 63 is blocked and the demolding of the steel sleeve 1 is not facilitated, and the concrete operation is not avoided as follows:
as shown in fig. 5-6, the feeding hole 63 is parallel to the axis of the forming cavity 9, the inner end and the outer end of the feeding hole 63 are respectively communicated with the forming cavity 9 and the external space of the column seal body 6, the feeding cavity 62 is communicated with the middle part of the feeding hole 63, the thimble 72 is slidably matched in the feeding hole 63, the pushing assembly comprises a ring 71, the ring 71 is fixedly connected with the thimble 72, the external part of the column seal body 6 is coaxially fixed with a threaded part 64, the surface of the threaded part 64 is in threaded connection with a threaded sleeve 7, and the ring 71 is rotationally sleeved outside the threaded sleeve 7;
in the initial state, the thimble 72 is contracted outwards to open the inner port of the feed hole 63, the molten metal enters the forming cavity 9 from the inner port of the feed hole 63, the toothed plate 32 of the alignment thread sleeve 7 is rotatably arranged on the surface of the bottom plate, the outer wall of the thread sleeve 7 is provided with dents, after the forming cavity 9 is filled with the molten metal, the die cylinder 4 continuously operates, the toothed plate 32 is rotated to contact with the dents on the surface of the thread sleeve 7, so that the thread sleeve 7 and the thread part 64 rotate in a staggered manner, the thread sleeve 7 drives the annular ring 71 to axially move on the surface of the thread part 64, the thimble 72 moves inwards to seal the inner port of the feed hole 63, and the molten metal in the feed hole 63 is pushed into the forming cavity 9, so that the later sealing of the feed hole 63 is avoided.
Claims (3)
1. Casting equipment of resistance to compression compound cylinder liner, characterized by includes:
the cylinder sleeve comprises a steel sleeve (1) and a ceramic bushing (2), wherein a caulking groove (11) is formed in the inner wall of the steel sleeve (1), a protrusion (21) is formed in the outer wall of the ceramic bushing (2), the ceramic bushing (2) is arranged in the steel sleeve (1), and the protrusion (21) is aligned and combined with the caulking groove (11) to enable the steel sleeve (1) to be combined with the ceramic bushing (2) into a whole;
the mold cylinder (4) is provided with a cylindrical cavity with two through ends, and the ceramic bushing (2) is arranged in the cavity;
the rotating device is used for driving the die cylinder (4) to rotate;
the inner support body (5) penetrates into the ceramic bushing (2) from one end of the mold cylinder (4), so that the ceramic bushing (2) and the cavity of the mold cylinder (4) are coaxially distributed;
the column sealing body (6) is connected with the inner supporting body (5) through the other end of the die cylinder (4), so that the axial position of the ceramic bushing (2) is fixed, and a forming cavity (9) is formed between the ceramic bushing (2) and the inner wall of the die cylinder (4);
the injection hopper (8) is communicated with the forming cavity (9) through the column seal body (6) and used for introducing molten metal liquid into the forming cavity (9) and solidifying the molten metal liquid in the forming cavity (9) to form the steel sleeve (1);
the axle center part of the column sealing body (6) is provided with a material cavity (62), the material injection hopper (8) is rotationally communicated with the material cavity (62), the column sealing body (6) is embedded into a port of the mould cylinder (4), and the edge of the column sealing body (6) is provided with a material inlet (63) for connecting the forming cavity (9) and the material cavity (62);
the feeding hole (63) is parallel to the axis of the forming cavity (9), the inner end and the outer end of the feeding hole (63) are respectively communicated with the forming cavity (9) and the outer space of the column sealing body (6), the feeding cavity (62) is communicated with the middle part of the feeding hole (63), the thimble (72) is slidably matched in the feeding hole (63), a pushing assembly is arranged outside the column sealing body (6) and used for pushing the thimble (72) to slide in the feeding hole (63) and for blocking or opening the inner end of the feeding hole (63);
the propelling component comprises a ring (71), the ring (71) is fixedly connected with the thimble (72), a threaded part (64) is coaxially fixed outside the column seal body (6), a threaded sleeve (7) is connected to the surface of the threaded part (64) in a threaded manner, and the ring (71) is rotatably sleeved outside the threaded sleeve (7);
the diameter of the inner support body (5) is matched with the inner diameter of the ceramic bushing (2), the outer end of the inner support body (5) is provided with an expanding part for blocking one end of the inner support body (5) to be aligned with the die cylinder (4), a positioning hole (53) is formed in the inner end of the inner support body (5), a positioning column (61) is fixed in the inner end of the column seal body (6), and the positioning column (61) is in threaded connection with the positioning hole (53) so that the column seal body (6) and the inner support body (5) are connected integrally;
an annular groove (51) is formed in the position, opposite to the forming cavity (9), of the expanding part of the inner support body (5), a through groove (52) is formed in the center of the inner support body (5), and the annular groove (51) is communicated with the external environment through the through groove (52).
2. Casting apparatus according to claim 1, characterized in that the radial dimension of the material chamber (62) increases gradually from the injection hopper (8) to the forming chamber (9), so that the material chamber (62) forms a truncated cone shape.
3. Casting apparatus according to claim 1, characterized in that the rotating means comprise a motor (3) and two sets of parallel-distributed rollers (31), the two sets of rollers (31) rollingly supporting the mould cylinder (4), the motor (3) being connected to the two sets of rollers (31) by means of a belt drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310513303.2A CN116241382B (en) | 2023-05-09 | 2023-05-09 | Compression-resistant composite cylinder sleeve and casting equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310513303.2A CN116241382B (en) | 2023-05-09 | 2023-05-09 | Compression-resistant composite cylinder sleeve and casting equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116241382A CN116241382A (en) | 2023-06-09 |
| CN116241382B true CN116241382B (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310513303.2A Active CN116241382B (en) | 2023-05-09 | 2023-05-09 | Compression-resistant composite cylinder sleeve and casting equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116241382B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0381499A2 (en) * | 1989-02-03 | 1990-08-08 | Danly International, S.A. | Composite and self-lubricating bushing |
| JPH06218523A (en) * | 1993-01-25 | 1994-08-09 | Nabeya Iron & Tool Works Ltd | Production of strip transferring roll |
| CN106246532A (en) * | 2016-08-09 | 2016-12-21 | 合肥精创陶瓷设备科技有限公司 | A kind of pottery nylon composite cylinder jacket and manufacture method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215370A (en) * | 1968-03-08 | 1970-12-09 | Kleinewefers Gravuren G M B H | Improvements in or relating to the copying of relief patterns |
| JP4738638B2 (en) * | 2001-05-30 | 2011-08-03 | 東芝機械株式会社 | Geikast device for motor rotor |
| CN217761730U (en) * | 2022-07-01 | 2022-11-08 | 新乡市威韧橡塑机械有限公司 | Integral bush with composite ceramic and aluminum alloy protection layer |
-
2023
- 2023-05-09 CN CN202310513303.2A patent/CN116241382B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0381499A2 (en) * | 1989-02-03 | 1990-08-08 | Danly International, S.A. | Composite and self-lubricating bushing |
| JPH06218523A (en) * | 1993-01-25 | 1994-08-09 | Nabeya Iron & Tool Works Ltd | Production of strip transferring roll |
| CN106246532A (en) * | 2016-08-09 | 2016-12-21 | 合肥精创陶瓷设备科技有限公司 | A kind of pottery nylon composite cylinder jacket and manufacture method thereof |
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| Publication number | Publication date |
|---|---|
| CN116241382A (en) | 2023-06-09 |
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