CN219187439U

CN219187439U - Variable spray angle type spraying device for centrifugal casting cylinder sleeve

Info

Publication number: CN219187439U
Application number: CN202223421572.6U
Authority: CN
Inventors: 赵永新
Original assignee: Luoyang Baicheng Internal Combustion Engine Fittings Co ltd
Current assignee: Luoyang Baicheng Internal Combustion Engine Fittings Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-16
Anticipated expiration: 2032-12-21

Abstract

The utility model belongs to the technical field of cylinder jackets, and mainly provides a variable spray angle type spraying device for a centrifugal casting cylinder jacket. The variable spray angle type spraying device is provided with a spray boom discharging pipe welded at the left end of the spray boom; a coating pipe and an air pipe are welded at the right end of the spray boom; the right lower part of the spray rod is welded with a spray rod rack; a spray head is arranged on the left side of the spray rod; the spray head is made of square steel with hollow inside, a spray hole is formed in the bottom of the spray head, and a spray head feed pipe is welded on the right side surface of the spray head; the diameter of the spray head feeding pipe is the same as that of the spray rod discharging pipe, and the spray head feeding pipe is connected with the spray rod discharging pipe through a hose; a swinging mechanism which enables the spray head to swing by a certain angle is arranged corresponding to the spray head; the top of the spray head is provided with a vertical rod; the vertical rod is hinged with a connecting plate II fixed on the spray rod to form a rotating mechanism for enabling the spray head to rotate relative to the spray rod. The utility model achieves the purposes of protecting the die, guaranteeing the blank quality of the cylinder sleeve, reducing the rejection rate and reducing the manufacturing cost.

Description

Variable spray angle type spraying device for centrifugal casting cylinder sleeve

Technical Field

The utility model belongs to the technical field of cylinder sleeve manufacturing, and mainly provides a variable spray angle type spraying device for a centrifugal casting cylinder sleeve.

Background

In the cylinder liner manufacturing process, a cylinder liner blank is manufactured in a centrifugal casting mode: casting molten iron qualified in smelting into a centrifugal casting die to form a cylinder sleeve blank. In order to enable the die to be reused and ensure the cooling rate of the molten iron and the blank to be conveniently taken out of the die, a certain thickness of paint needs to be sprayed on the inner surface and the vertical surfaces at the left end and the right end of the die before casting the molten iron, as shown in a traditional spraying device in fig. 1, the paint enters a spray boom 1 through a paint pipe 4 and is sprayed to the inner surface of the rotating die through a nozzle 2 at the left lower part of the spray boom 1 under the pushing of compressed gas in a gas pipe 5; in the spraying process, the spray boom 1 can move left and right under the drive of the gear 7 and the rack 6, so that the paint is uniformly distributed on the inner surface of the die.

Because the traditional nozzle can only be perpendicular to the inner surface of the die, although the inner surface of the die is uniformly distributed with a certain thickness by the paint, the left end face and the right end face of the die can only obtain part of the sputtered paint, so that the paint on the vertical faces at the two ends of the die is too thin, the product quality of the two end faces of a cylinder sleeve blank is not qualified, the machining performance is reduced, the die is scrapped, the cylinder sleeve quality is unstable, and the manufacturing cost is increased.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a variable spray angle type spraying device for a centrifugal casting cylinder sleeve.

The utility model adopts the following technical scheme for accomplishing the purposes:

the variable spray angle type spraying device for the centrifugal casting cylinder sleeve is provided with a spray boom discharging pipe welded at the left end of a spray boom; a coating pipe and an air pipe are welded at the right end of the spray boom; the lower right part of the spray rod is welded with a spray rod rack which is driven by a spray rod gear arranged at a fixed position and driven by a motor control system and can move left and right; a spray head is arranged on the left side of the spray rod; the spray head is made of square steel with hollow inside, a spray hole is formed in the bottom of the spray head, and a spray head feeding pipe is welded on the right side surface of the spray head; the diameter of the spray head feeding pipe is the same as that of the spray rod discharging pipe, and the spray head feeding pipe is connected with the spray rod discharging pipe through a hose; a swinging mechanism which enables the spray head to swing by a certain angle is arranged corresponding to the spray head; the top of the spray head is provided with a vertical rod; the vertical rod is hinged with a connecting plate II fixed on the spray rod to form a rotating mechanism for enabling the spray head to rotate relative to the spray rod.

The swing mechanism is provided with a push-pull hole arranged at the upper part of the vertical rod, and the push-pull hole is a strip-shaped hole; a push-pull shaft which can slide up and down along the push-pull hole is arranged in the push-pull hole; the push-pull shaft is connected with the connecting plate I through a connecting rod; the connecting plate I is angle iron, a connecting rod rack is welded at the lower part of the connecting plate I, and a connecting rod gear is arranged at the lower part of the connecting rod rack; the connecting rod gear is arranged at a fixed position and driven by a motor.

According to the variable spray angle type spraying device for the centrifugal casting cylinder sleeve, the technical scheme is adopted, and the spray head and the power mechanism capable of enabling the spray head to swing are additionally arranged, so that when the paint is sprayed on the inner surface of the rotating die, the paint with proper thickness can be uniformly distributed on the left and right vertical surfaces of the die, and the purposes of protecting the die, guaranteeing the blank quality of the cylinder sleeve, reducing the rejection rate and reducing the manufacturing cost are achieved.

Drawings

Fig. 1 is a schematic structural view of a conventional spray coating device.

Fig. 2 is a schematic structural view of the spraying device of the present utility model.

FIG. 3 is a schematic view of the use of the spray device of the present utility model.

In the figure: 1. a spray bar; 2. a spray hole; 3. a coating; 4. a coating pipe; 5. an air pipe; 6. a spray rod rack; 7. a spray rod gear; 8. a connecting plate I; 9. a connecting rod rack; 10. a connecting rod gear; 11. a connecting rod; 12. a connecting plate II; 13. a vertical rod; 14. a push-pull shaft; 15. pushing and pulling the hole; 16. a pin hole; 17. a pin; 18. a spray head feed pipe; 19. a spray boom discharge pipe; 20. a hose; 21. a spray head.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples.

As shown in fig. 2 and 3, a variable spray angle type spraying device for a centrifugal casting cylinder sleeve is characterized in that a spray rod discharging pipe 19 is welded at the left end of a spray rod 1, a coating pipe 4 and an air pipe 5 are welded at the right end of the spray rod 1, the spray rod 1 is hollow square steel, the spray rod discharging pipe 19, the coating pipe 4 and the air pipe 5 are hollow round steel, and the size is determined according to the inner diameter of a die, the required amount of coating and the flow rate in the casting process; a boom rack 6 is welded to the right lower portion of the boom 1, and the boom rack 6 is driven by a boom gear 7 mounted at a fixed position and driven by a motor control system so as to be movable left and right.

The top of the spray head 21 is welded with a vertical rod 13, the vertical rod 13 is angle iron, the vertical rod 13 is provided with a pin hole 16, the pin hole 16 penetrates through the vertical rod 13 and the connecting plate II 12, and the pin 17 penetrates through the pin hole 16 to connect the vertical rod 13 and the connecting plate II together. The pin 17 and the pin hole 16 are cylindrical and are in clearance fit. The connecting plate II 12 is angle iron, and the right bottom of the connecting plate II is welded at the left upper part of the spray rod 1. A push-pull hole 15 is formed in the middle upper portion of the upright rod 13, the push-pull hole 15 is rectangular in the middle, and the upper end and the lower end of the push-pull hole are semicircular. A cylindrical push-pull shaft 14 is mounted in the push-pull hole 15, and the push-pull shaft 14 is slightly smaller than the width of the push-pull hole 15 and can freely move in the push-pull hole 15.

The push-pull shaft 15 is vertically welded on the left end face of the connecting rod 11, the connecting rod 11 is made of round steel, and the right part of the connecting rod is welded on the connecting plate I8. The connecting plate I8 is angle iron, a connecting rod rack 9 is welded at the lower part of the connecting plate I, and a connecting rod gear 10 is arranged at the lower part of the connecting rod rack 9; the connecting rod gear 10 is arranged at a fixed position and driven by a motor, and the motor control system has the functions of enabling the connecting rod gear 10 to idle in time, rotate clockwise and rotate anticlockwise.

As shown in fig. 3, when the die is required to be sprayed, the spray rod gear 7 is driven by the spray rod gear motor to rotate anticlockwise, the spray rod rack 6 is driven to move leftwards, the spray rod 1 welded on the spray rod rack 6 is simultaneously moved leftwards, when the spray head 21 on the right side of the device enters the right side of the inner cavity of the cylinder sleeve centrifugal casting die, the coating 3 enters the spray rod 1 through the coating pipe 4, meanwhile, compressed air also enters the spray rod 1 through the air pipe 5, and the coating 3 continuously passes through the spray rod 1, the spray rod discharging pipe 19, the hose 20, the spray head feeding pipe 18, the spray head 21 and the spray hole 2 and is sprayed to the inner surface of the rotating cylinder sleeve die under the action of the compressed air. During the left-right movement of the boom 1, the link gear 10 is free-idle, and no rotational power is generated to the link rack 9.

When the spray head 21 moves to approach the left end face of the cylinder liner casting mold, the spray rod gear 7 stops running, meanwhile, the motor of the connecting rod gear 10 is started to enable the connecting rod gear 10 to rotate clockwise by a certain angle, the connecting rod 11 rotates clockwise by pulling the vertical rod 13 to enable the spray head 21 to rotate clockwise around the pin 17, and at the moment, most of the paint 3 sprayed from the spray hole 2 is sprayed to the left vertical face of the mold. The rotation angle of the connecting rod gear 10 is determined according to the spraying width required by the left end face of the die. After the spraying of the left vertical face of the die is finished, the motor of the connecting rod gear 10 is started to enable the connecting rod gear 10 to rotate anticlockwise by a certain angle, so that the spray hole 2 returns to the original position, meanwhile, the spray rod gear 7 rotates clockwise to drive the spray rod 1 to move rightwards to the right end of the inner cavity of the die, and the connecting rod gear 10 rotates anticlockwise by a certain angle according to the same principle, so that the right vertical face of the die is effectively sprayed. And the whole spraying device returns to the initial state after the paint in the inner cavity of the die and the left and right vertical surfaces reaches the required thickness.

Claims

1. The utility model provides a variable spray angle formula spraying device for centrifugal casting cylinder cover which characterized in that: the variable spray angle type spraying device is provided with a spray boom discharging pipe welded at the left end of the spray boom; a coating pipe and an air pipe are welded at the right end of the spray boom; the lower right part of the spray rod is welded with a spray rod rack which is driven by a spray rod gear arranged at a fixed position and driven by a motor control system and can move left and right; a spray head is arranged on the left side of the spray rod; the spray head is made of square steel with hollow inside, a spray hole is formed in the bottom of the spray head, and a spray head feeding pipe is welded on the right side surface of the spray head; the diameter of the spray head feeding pipe is the same as that of the spray rod discharging pipe, and the spray head feeding pipe is connected with the spray rod discharging pipe through a hose; a swinging mechanism which enables the spray head to swing by a certain angle is arranged corresponding to the spray head; the top of the spray head is provided with a vertical rod; the vertical rod is hinged with a connecting plate II fixed on the spray rod to form a rotating mechanism for enabling the spray head to rotate relative to the spray rod.

2. A variable spray angle spray device for a centrifugally cast cylinder sleeve as set forth in claim 1 wherein: the swing mechanism is provided with a push-pull hole arranged at the upper part of the vertical rod, and the push-pull hole is a strip-shaped hole; a push-pull shaft which can slide up and down along the push-pull hole is arranged in the push-pull hole; the push-pull shaft is connected with the connecting plate I through a connecting rod; the connecting plate I is angle iron, a connecting rod rack is welded at the lower part of the connecting plate I, and a connecting rod gear is arranged at the lower part of the connecting rod rack; the connecting rod gear is arranged at a fixed position and driven by a motor.