Centrifugal casting coating using equipment with inoculation function

Abstract

The utility model relates to the technical field of centrifugal casting, in particular to centrifugal casting coating using equipment with an inoculation function, which comprises a centrifugal tank, a coating layer, a coating layer, a coating layer, a coating layer, a coating layer, a coating layer and a coating layer, and is characterized in that one side of the centrifugal tank is provided with an opening and is in threaded connection with a sealing cover; a containing groove is formed in the shaping column, two strip-shaped openings are symmetrically formed in the two sides of the containing groove, the strip-shaped openings are elastically sealed through sealing assemblies, two coating layers are symmetrically and fixedly connected to the two sides of the sides, located in the containing groove, of the strip-shaped openings, and the coating layers are strip-shaped and made of inoculation materials. A mounting assembly is arranged in the containing groove, and a plurality of friction assemblies are arranged in the middle of the mounting assembly at equal intervals and located between the two coating layers. The friction assembly comprises a connecting block, an elastic column, an insertion pipe and a friction strip. According to the utility model, the inoculation effect of the large-cylinder-diameter cylinder sleeve is greatly improved, and the problem that the large-cylinder-diameter cylinder sleeve is scrapped due to unqualified metallographic phase is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal casting, in particular to a centrifugal casting coating using device with inoculation function. Background Technique

[0002] The cylinder liner is placed in the cylinder block hole of the engine block and is fixed by the cylinder head on the upper part. When casting, the water-cooled centrifugal casting process with the advantages of high efficiency and dense casting structure is usually used. An inoculant is used during the casting process, and the inoculant can promote nucleation and inhibit growth to achieve the effect of refining the grains.

[0003] Chinese Patent CN115156497A discloses a centrifugal casting mold for cast iron cylinder liners, including a first casting mold and a second casting mold. A small arc concave surface is fixedly arranged on one side of the outer wall of the first casting mold, and a large arc concave surface is fixedly arranged on the side of the outer wall of the first casting mold away from the small arc concave surface. By arranging a rotating bearing to support the connecting shaft, it is convenient for the mold to rotate centrifugally, improving the product quality processed by the mold and making the quality of the manufactured cylinder liner better.

[0004] However, due to the characteristics of large cylinder diameter cylinder liners being thick, having a large amount of molten iron, and slow cooling, during the pouring process of the conventional centrifugal casting cylinder liner, when using the inoculant particle inoculation method along with the molten iron flow, it is easy for the inoculant to decline and lose its inoculation effect as the solidification time of the large cylinder diameter cylinder liner is long, resulting in the metallographic structure of the large cylinder diameter cylinder liner being unqualified and scrapped. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defect in the prior art that it is easy for the inoculant to decline and lose its inoculation effect as the solidification time of the large cylinder diameter cylinder liner is long, resulting in the metallographic structure of the large cylinder diameter cylinder liner being unqualified and scrapped, and to propose a centrifugal casting coating using device with inoculation function.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A centrifugal casting coating using device with inoculation function, including: a centrifugal tank, one side of the centrifugal tank is open and is threadedly connected with a sealing cover, and a shaping column is arranged in the middle of the centrifugal tank;

[0008] A placement groove is arranged inside the shaping column, two strip-shaped openings are symmetrically opened on both sides of the placement groove, the strip-shaped openings are elastically sealed by a sealing component, and two coating layers are symmetrically and fixedly connected to both sides of the side of the strip-shaped opening located inside the placement groove. The coating layers are strip-shaped and are made of inoculation material;

[0009] An installation component is arranged inside the placement groove. A plurality of friction components are equidistantly arranged in the middle of the installation component and are located between two coating layers. The friction components are used to rub against the coating layers to wear the coating layers so that the inoculating material enters the centrifuge tank interior;

[0010] The friction components include connecting blocks, elastic columns, inserting tubes and friction strips. The connecting blocks are fixedly connected to the sides of the installation component. The elastic columns are fixedly connected to the ends of the connecting blocks. The inserting tubes are fixedly connected to the ends of the elastic columns. The friction strips are inserted into the inserting tubes, and the friction strips swing to contact and rub against the coating layers.

[0011] Preferably, the sealing component includes an elastic strip and a sealing plate. The cross-section of the strip-shaped opening is T-shaped, the cross-section of the sealing plate is T-shaped, and the sealing plate is clamped inside the strip-shaped opening. A plurality of elastic strips are fixedly connected between the sealing plate and the strip-shaped opening.

[0012] Preferably, the installation component includes a middle rod, limiting rings, connecting rods and rotating seats. The two limiting rings are respectively arranged at both ends of the middle rod. The connecting rods are fixedly connected between the middle rod and the limiting rings. The rotating seats are fixedly connected to the ends of the middle rod and are clamped at the bottom of the placement groove.

[0013] Preferably, a limiting component is arranged between the limiting ring and the placement groove. The limiting component is used to limit the position of the limiting ring.

[0014] Preferably, the limiting component includes limiting strip grooves and limiting blocks. The two limiting strip grooves are symmetrically arranged on the upper and lower sides of the placement groove up and down. The two limiting blocks are fixedly connected to the upper and lower ends of the limiting ring and are slidably arranged inside the limiting strip grooves in a limiting manner.

[0015] Preferably, a end cover is threadedly connected to the position of the opening of the placement groove. The outer end of the end cover protrudes and is clamped inside the groove in the middle of the sealing cover.

[0016] Preferably, the inserting tube and the friction strip are connected through a fixing component. The fixing component is used to fix the position of the friction strip.

[0017] Preferably, the fixing component includes a fixing cover and an extrusion ring. A threaded ring is arranged at the end of the inserting tube. The fixing cover is sleeved on the friction strip, and a threaded groove is opened at the end, which is threadedly connected to the end of the inserting tube. The extrusion ring is fixedly connected to the end of the inserting tube. When the fixing cover is connected to the inserting tube, the extrusion ring deforms to fix the friction strip.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. During the centrifugal process, since the entire installation assembly is rotated inside the shaping column, the elastic column will drive the friction strip to swing up and down, and the friction strip will contact and rub against the coating layer, causing the inoculated material on the friction strip and the coating layer to turn into powder and fall into the placement groove. At the same time, due to the centrifugal force, the sealing assembly moves outward, exposing the strip-shaped opening on the shaping column, and the inoculated material enters the casting. The utility model greatly improves the inoculation effect of the large-diameter cylinder liner, and avoids the problem of the large-diameter cylinder liner being scrapped due to metallographic disqualification;

[0020] 2. The inoculated material generated by friction and coating layer will be discharged through the strip port under the action of centrifugal force, and the powder will be mixed with the casting material of the external casting, so as to inoculate the cylinder liner in the casting process. During the solidification time of centrifugal casting, it is in contact with the inoculated material and continuously inoculated, which greatly improves the inoculation effect of the large-diameter cylinder liner and avoids the problem of large-diameter cylinder liner being scrapped due to metallographic disqualification;

[0021] 3. The extrusion ring is squeezed by the fixed cover to deform the extrusion ring, and the internal friction strip is elastically clamped and fixed, which facilitates the firm fixation of friction strips of different diameters;

[0022] 4. When the centrifugal tank is not rotating, due to the pulling force of the elastic strip, the sealing plate is in sealing contact with the strip-shaped opening. Due to the centrifugal force, the outward centrifugal force on the sealing plate is greater than the restraining pulling force of the elastic strip, so that the sealing plate moves outward, exposing the strip-shaped opening on the shaping column, ensuring the sealing inside the placement tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front structural schematic diagram of a centrifugal casting coating using device with inoculation function proposed by the utility model;

[0024] Figure 2 This is a cross-sectional view of a centrifugal tank of a centrifugal casting coating using device with an inoculation function proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of a centrifugal tank of a centrifugal casting coating using device with an inoculation function proposed by the utility model;

[0026] Figure 4 This is a schematic diagram of the front structure of a shaping column of a centrifugal casting coating using device with a nurturing function proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of the shaping column structure of a centrifugal casting coating using equipment with a nurturing function proposed by the utility model;

[0028] Figure 6Schematic structural diagram of a sealing component of an equipment for using centrifugal casting coating with inoculation function proposed by the present utility model;

[0029] Figure 7 Schematic structural diagram of an installation component of an equipment for using centrifugal casting coating with inoculation function proposed by the present utility model;

[0030] Figure 8 Schematic structural diagram of a friction component of an equipment for using centrifugal casting coating with inoculation function proposed by the present utility model;

[0031] Figure 9 Cross-sectional view of a friction component of an equipment for using centrifugal casting coating with inoculation function proposed by the present utility model.

[0032] In the figure: 1 centrifugal tank, 2 shaping column, 3 coating layer, 4 sealing component, 41 elastic strip, 42 sealing plate, 5 installation component, 51 middle rod, 52 limiting ring, 53 connecting rod, 54 rotating seat, 6 friction component, 61 connecting block, 62 elastic column, 63 insertion tube, 64 friction strip, 8 limiting component, 81 limiting strip groove, 82 limiting block, 9 fixing component, 91 fixing cover, 92 extrusion ring, 10 sealing cover, 11 end cover. Specific implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0034] Terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0035] Refer to Figures 1-9 , an equipment for using centrifugal casting coating with inoculation function, comprising: a centrifugal tank 1, one side of the centrifugal tank 1 is open and is threadedly connected with a sealing cover 10, and a shaping column 2 is arranged in the middle of the centrifugal tank 1;

[0036] A placement groove is arranged inside the shaping column 2. Two strip-shaped openings are symmetrically opened on both sides of the placement groove. The strip-shaped openings are elastically sealed by a sealing component 4. On both sides of one side of the strip-shaped opening located inside the placement groove, two coating layers 3 are symmetrically fixedly connected. The coating layer 3 is strip-shaped and is made of inoculation material;

[0037] An installation component 5 is arranged inside the placement groove. A plurality of friction components 6 are equidistantly arranged in the middle of the installation component 5 and are located between two coating layers 3. The friction components 6 are used to rub against the coating layers 3 to wear the coating layers 3, so that the inoculating material enters the inside of the centrifugal tank 1;

[0038] The friction component 6 includes a connecting block 61, an elastic column 62, an inserting tube 63 and a friction strip 64. The connecting block 61 is fixedly connected to the side of the installation component 5. The elastic column 62 is fixedly connected to the end of the connecting block 61. The inserting tube 63 is fixedly connected to the end of the elastic column 62. The friction strip 64 is inserted inside the inserting tube 63. The friction strip 64 swings and contacts and rubs against the coating layer 3.

[0039] In the embodiment applying the above technical solution, during the centrifugation process, since the entire installation component 5 is rotatably arranged inside the shaping column 2, the elastic column 62 with elasticity will drive the friction strip 64 to swing up and down. During the swinging process of the friction strip 64, the friction strip 64 contacts and rubs against the coating layer 3, causing the inoculating material on the friction strip 64 and the coating layer 3 to become powder and fall into the placement groove. At the same time, due to the centrifugal force, the sealing component 4 moves outwards, exposing the strip-shaped opening on the shaping column 2, and the inoculating material enters the casting material. The utility model greatly improves the inoculation effect of the large-bore cylinder liner and avoids the problem of scrapping due to unqualified metallography of the large-bore cylinder liner.

[0040] In the preferred technical solution of this embodiment, the sealing component 4 includes an elastic strip 41 and a sealing plate 42. The cross-section of the strip-shaped opening is T-shaped, and the cross-section of the sealing plate 42 is T-shaped and is clamped inside the strip-shaped opening. A plurality of elastic strips 41 are fixedly connected between the sealing plate 42 and the strip-shaped opening. When the centrifugal tank 1 does not rotate, due to the pulling force of the elastic strip 41, the sealing plate 42 is in sealing contact with the strip-shaped opening. Due to the centrifugal force, the centrifugal force acting on the sealing plate 42 outwards is greater than the restraint pulling force of the elastic strip 41, so that the sealing plate 42 moves outwards, exposing the strip-shaped opening on the shaping column 2;

[0041] The installation component 5 includes a middle rod 51, a limit ring 52, a connecting rod 53 and a rotating seat 54. Two limit rings 52 are respectively arranged at both ends of the middle rod 51. The connecting rod 53 is fixedly connected between the middle rod 51 and the limit ring 52. The rotating seat 54 is fixedly connected to the end of the middle rod 51 and is clamped at the bottom of the placement groove. The installation component 5 is used to install the friction component 6 inside the placement groove;

[0042] A limit component 8 is arranged between the limit ring 52 and the placement groove. The limit component 8 is used to limit the position of the limit ring 52;

[0043] The limiting component 8 includes a limiting strip groove 81 and a limiting block 82. The two limiting strip grooves 81 are symmetrically arranged up and down on the upper and lower sides of the placement groove. The two limiting blocks 82 are fixedly connected to the upper and lower ends of the limiting ring 52 and are slidably arranged inside the limiting strip groove 81. In order to prevent the mounting component 5 from rotating inside the placement groove during rotation, the limiting block 82 is slidably arranged inside the limiting strip groove 81, thereby limiting the mounting component 5;

[0044] A end cover 11 is threadedly connected to the position of the opening of the placement groove. The outer end of the end cover 11 protrudes and is clamped inside the groove in the middle of the sealing cover 10. The end cover 11 is used to seal the placement groove;

[0045] The intubation tube 63 and the friction strip 64 are connected by a fixing component 9. The fixing component 9 is used to fix the position of the friction strip 64;

[0046] The fixing component 9 includes a fixing cover 91 and an extrusion ring 92. A threaded ring is arranged at the end of the intubation tube 63. The fixing cover 91 is sleeved on the friction strip 64 and a threaded groove is opened at the end, which is threadedly connected to the end of the intubation tube 63. The extrusion ring 92 is fixedly connected to the end of the intubation tube 63. When the fixing cover 91 is connected to the intubation tube 63, the extrusion ring 92 is deformed to fix the friction strip 64. By squeezing the extrusion ring 92 with the fixing cover 91, the extrusion ring 92 is deformed to elastically clamp and fix the internal friction strip 64, facilitating the firm fixing of friction strips 64 with different diameters.

[0047] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A centrifugal casting coating using device with inoculation function, comprising: A centrifugal tank (1), characterized in that one side of the centrifugal tank (1) is open and is threadedly connected with a sealing cover (10), and a shaping column (2) is arranged in the middle of the centrifugal tank (1); The shaping column (2) is provided with a placement groove inside, and two strip-shaped openings are symmetrically provided on both sides of the placement groove. The strip-shaped openings are elastically sealed by a sealing component (4). Two coating layers (3) are symmetrically fixedly connected on both sides of one side of the strip-shaped opening inside the placement groove. The coating layers (3) are strip-shaped and made of a nucleating material. A mounting assembly (5) is arranged inside the placement groove, and a plurality of friction assemblies (6) are arranged equidistantly in the middle of the mounting assembly (5) and are located between two coating layers (3). The friction assembly (6) is used to rub against the coating layer (3) to wear the coating layer (3) so that the inoculated material enters the centrifugal tank (1); The friction assembly (6) comprises a connecting block (61), an elastic column (62), a plug (63) and a friction strip (64); the connecting block (61) is fixedly connected to the side of the mounting assembly (5); the elastic column (62) is fixedly connected to the end of the connecting block (61); the plug (63) is fixedly connected to the end of the elastic column (62); the friction strip (64) is inserted into the plug (63); the friction strip (64) swings to contact and rub against the coating layer (3).

2. The centrifugal casting coating using device with inoculation function according to claim 1 is characterized in that: The sealing assembly (4) comprises an elastic strip (41) and a sealing plate (42); the strip opening has a T-shaped cross section; the sealing plate (42) has a T-shaped cross section and is clamped inside the strip opening; a plurality of the elastic strips (41) are fixedly connected between the sealing plate (42) and the strip opening.

3. The centrifugal casting coating using device with inoculation function according to claim 1 is characterized in that: The mounting assembly (5) comprises a middle rod (51), a limiting ring (52), a connecting rod (53) and a rotating seat (54); the two limiting rings (52) are respectively arranged at two ends of the middle rod (51); the connecting rod (53) is fixedly connected between the middle rod (51) and the limiting ring (52); and the rotating seat (54) is fixedly connected to the end of the middle rod (51) and is clamped at the bottom of the placement groove.

4. The centrifugal casting coating using device with inoculation function according to claim 3, characterized in that: A limiting assembly (8) is provided between the limiting ring (52) and the placement groove, and the limiting assembly (8) is used to limit the position of the limiting ring (52).

5. The centrifugal casting coating using device with inoculation function according to claim 4, characterized in that: The limiting assembly (8) comprises a limiting groove (81) and a limiting block (82); the two limiting grooves (81) are symmetrically arranged on the upper and lower sides of the placement groove; the two limiting blocks (82) are fixedly connected to the upper and lower ends of the limiting ring (52), and the limiting sliding is arranged inside the limiting groove (81).

6. The centrifugal casting coating using device with inoculation function according to claim 1, characterized in that: An end cover (11) is threadedly connected to the notch of the placement groove, and the outer end of the end cover (11) protrudes and is clamped in the groove in the middle of the sealing cover (10).

7. The centrifugal casting coating using device with inoculation function according to claim 1, characterized in that: The insertion tube (63) and the friction strip (64) are connected via a fixing component (9), and the fixing component (9) is used to fix the position of the friction strip (64).

8. The centrifugal casting coating using device with inoculation function according to claim 7, characterized in that: The fixing assembly (9) comprises a fixing cover (91) and an extrusion ring (92). The end of the insert tube (63) is provided with a threaded ring. The fixing cover (91) is sleeved on the friction strip (64) and has a threaded groove at the end thereof, which is threadedly connected to the end of the insert tube (63). The extrusion ring (92) is fixedly connected to the end of the insert tube (63). When the fixing cover (91) is connected to the insert tube (63), the extrusion ring (92) is deformed to fix the friction strip (64).

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