Protection and collection device for powder chips from roughened surface treatment of solid rocket motor grain

Abstract

The present invention belongs to the field of roughening surface treatment of the coating layer of solid rocket motor grains. Specifically, it is a device for protecting and collecting powder chips during the roughening surface treatment of solid rocket motor grains. The grain is in contact with a floating roughening head, and after the left and right interlocking protective covers are closed, the contact end of the grain head and the floating roughening head is wrapped in the interlocking protective cover; the powder chips generated by the grain during the roughening surface treatment process are blown toward the powder chip collection duct by the high-speed airflow blown in by the air source, and the negative pressure source sucks the high-speed airflow carrying the powder chips out of the interlocking protective cover through the powder chip collection duct. The present invention can realize the protection and collection of powder chips during the roughening surface treatment of the coating layer of solid rocket motor grains. It prevents powder chips from affecting the normal use of other equipment, prevents processing personnel from inhaling powder chips and causing poisoning and endangering their lives, and improves the safety of the processing process. It has the advantages of simple structure, compact layout, high reliability, and easy maintenance.

Description

Technical Field

[0001] The invention belongs to the field of roughening surface treatment of a coating layer of a solid rocket motor grain, in particular to a device for protecting and collecting powder chips from the roughening surface treatment of a solid rocket motor grain. Background Art

[0002] Solid rocket motor grains must be bonded to the top cover before being installed in the engine combustion chamber. To improve bond strength, the grain coating must undergo a roughening process. This process is currently performed manually by technicians, resulting in issues such as difficulty controlling the consistency of the roughening quality, processing risks, and limited production efficiency. This roughening process generates a large amount of fine debris, which can affect equipment operation. Furthermore, due to the toxic nature of the material, inhalation of it can harm the health of workers. Summary of the Invention

[0003] In view of the problems existing in the roughening surface treatment of solid rocket motor grains mentioned above, the purpose of the present invention is to provide a device for protecting and collecting powder chips from the roughening surface treatment of solid rocket motor grains.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] The present invention includes a chimeric protective cover, a flexible protective curtain, a chimeric protective cover opening and closing power source, a chimeric protective cover lifting power source and a medicine debris cleaning air intake collection component, wherein the chimeric protective cover lifting power source is installed between the medicine column and the floating roughening head to drive the chimeric protective cover opening and closing power source, the chimeric protective cover and the flexible protective curtain to rise and fall, and the chimeric protective cover opening and closing power source is connected to the output end of the chimeric protective cover lifting power source; the chimeric protective cover is divided into a right chimeric protective cover and a left chimeric protective cover that can be opened and closed, and the flexible protective curtain is divided into a right chimeric protective cover flexible protective curtain and a left chimeric protective cover flexible protective curtain, and the right chimeric protective cover and the left chimeric protective cover flexible protective curtain are fixed to the opposite sides of the right chimeric protective cover and the left chimeric protective cover respectively; the left and right output ends of the chimeric protective cover opening and closing power source are connected to the left chimeric protective cover and the right chimeric protective cover respectively The cover is connected to drive the left and right chimeric protective covers to move synchronously in opposite directions, thereby realizing the opening and closing of the chimeric protective cover, and the flexible protective curtain of the right and left chimeric protective covers wrap the roughened surface of the medicine column and the contact end of the floating roughening head in the chimeric protective cover in the closed state; the medicine debris cleaning air intake collection component includes a medicine debris cleaning air intake pipe and a medicine debris collection duct, and the medicine debris cleaning air intake pipe is installed on the chimeric protective cover, and the output end of the medicine debris cleaning air intake pipe is located in the chimeric protective cover, and the input end is connected to the air source, one end of the medicine debris collection duct is connected to the inside of the chimeric protective cover, and the output end is connected to the negative pressure source, and the medicine debris generated by the medicine column during the roughening surface treatment process is blown to the medicine debris collection duct by the high-speed airflow blown in by the air source, and the negative pressure source sucks the high-speed airflow carrying medicine debris out of the chimeric protective cover through the medicine debris collection duct.

[0006] Wherein: the end faces of the right and left embedded protective covers are both fan-shaped, one side of the flexible protective curtain of the right embedded protective cover is respectively fixed to the two radial edges and the arc edge of the fan-shaped of the right embedded protective cover, and the other side is used to wrap the medicine column and the floating roughening head; one side of the flexible protective curtain of the left embedded protective cover is respectively fixed to the two radial edges and the arc edge of the fan-shaped of the left embedded protective cover, and the other side is used to wrap the medicine column and the floating roughening head.

[0007] The sector radius of the right or left embedded protective cover is smaller than that of the left or right embedded protective cover, and the other side of the flexible protective curtain of the right embedded protective cover partially overlaps with the other side of the flexible protective curtain of the left embedded protective cover when closed.

[0008] The fan shape is a right-angled fan shape, and a semicircular hole is provided on one right-angled side of the right-angled fan shape of the right embedded protective cover and the left embedded protective cover, which is used to fit the outer contour of the medicine column; a rectangular hole is provided on the other right-angled side of the right-angled fan shape of the right embedded protective cover or the left embedded protective cover for connecting with the medicine debris collection duct.

[0009] Two through holes are provided on the end face of the right or left interlocking protective cover, and a medicine chip cleaning air intake pipe fixing seat is installed in each of the through holes. A medicine chip cleaning air intake pipe is fixedly connected to each of the medicine chip cleaning air intake pipe fixing seats, and the output ends of the two medicine chip cleaning air intake pipes are connected through a porous exhaust bend pipe, and the curvature of the porous exhaust bend pipe corresponds to the curvature of the fan shape.

[0010] The power source for opening and closing the chimeric protective cover includes a chimeric protective cover opening and closing cylinder, a right chimeric protective cover opening and closing push plate, and a left chimeric protective cover opening and closing push plate. The chimeric protective cover opening and closing cylinder is connected to the output end of the chimeric protective cover lifting power source. The right chimeric protective cover opening and closing push plate and the left chimeric protective cover opening and closing push plate are respectively connected to the protruding rods on the left and right sides of the chimeric protective cover opening and closing cylinder. The right chimeric protective cover is connected to the right chimeric protective cover opening and closing push plate through a connecting plate, and the left chimeric protective cover is connected to the left chimeric protective cover opening and closing push plate through a connecting plate.

[0011] The power source for lifting the chimeric protective cover includes a chimeric protective cover lifting cylinder and a chimeric protective cover lifting cylinder rod. The chimeric protective cover lifting cylinder is fixed to the frame through a mounting plate and is located between the medicine column and the floating roughening head. The top end of the chimeric protective cover lifting cylinder rod, which serves as the output end of the chimeric protective cover lifting cylinder, is connected to the power source for opening and closing the chimeric protective cover. When the medicine column is loaded into the processing position, the chimeric protective cover lifting cylinder drives the chimeric protective cover to descend to the standby position.

[0012] The advantages and positive effects of the present invention are:

[0013] 1. The present invention has two degrees of freedom, which can achieve complete envelopment of the processing area during the roughening surface treatment of the grain, and adapt to the height difference between the grain processing position and the standby position of the embedded protective cover.

[0014] 2. The present invention can realize the closing of the interlocking protective cover before the roughening surface treatment of the grain column, and the opening of the interlocking protective cover after the roughening surface treatment of the grain column, which can more effectively avoid the splashing of grain chips during the processing.

[0015] 3. The present invention is equipped with high-speed airflow blowing and negative pressure medicine debris collection functions, which can effectively remove and collect medicine debris generated in the embedded protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a cross-sectional view of the embedded protective cover of the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the embedded protective cover of the present invention after the roughening surface treatment of the grain is processed;

[0019] Among them: 1 is the right embedded protective cover flexible protective curtain, 2 is the right embedded protective cover, 3 is the right embedded protective cover opening and closing push plate, 4 is the powder collecting duct, 5 is the embedded protective cover lifting cylinder rod, 6 is the embedded protective cover lifting cylinder, 7 is the mounting plate, 8 is the embedded protective cover opening and closing cylinder, 9 is the left embedded protective cover opening and closing push plate, 10 is the connecting plate, 11 is the powder cleaning air intake pipe fixing seat, 12 is the powder cleaning air intake pipe, 13 is the left embedded protective cover, 14 is the left embedded protective cover flexible protective curtain, 15 is the porous exhaust elbow, 16 is the floating roughening head, and 17 is the powder column. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 3 As shown, the present invention includes a chimeric protective cover, a flexible protective curtain, a chimeric protective cover opening and closing power source, a chimeric protective cover lifting power source and a medicine debris cleaning air intake collection component, wherein the chimeric protective cover lifting power source is installed between the medicine column 17 and the floating roughening head 16, driving the chimeric protective cover opening and closing power source, the chimeric protective cover and the flexible protective curtain to rise and fall, and the chimeric protective cover opening and closing power source is connected to the output end of the chimeric protective cover lifting power source; the chimeric protective cover is divided into a right chimeric protective cover 2 and a left chimeric protective cover 13 that can be opened and closed, and the flexible protective curtain is divided into a right chimeric protective cover flexible protective curtain 1 and a left chimeric protective cover flexible protective curtain 14, and the right chimeric protective cover 2 and the left chimeric protective cover 13 are fixed to the opposite sides of the right chimeric protective cover 1 and the left chimeric protective cover respectively. Flexible protective curtain 14; the left and right output ends of the power source for opening and closing the interlocking protective cover are respectively connected to the left interlocking protective cover 13 and the right interlocking protective cover 2, driving the left interlocking protective cover 13 and the right interlocking protective cover 2 to move synchronously in opposite directions, thereby realizing the opening and closing of the interlocking protective cover. The right interlocking protective cover flexible protective curtain 1 and the left interlocking protective cover flexible protective curtain 14 wrap the roughened surface of the medicine column 17 and the contact end of the floating roughening head 16 in the interlocking protective cover in the closed state; the floating roughening head 16 is in surface contact with the medicine column 17. During the roughening surface treatment process of the medicine column, the head of the medicine column 17 and the contact end of the floating roughening head 16 are located in the interlocking protective cover, and the floating roughening head 16 can move freely between the right interlocking protective cover flexible protective curtain 1 and the left interlocking protective cover flexible protective curtain 14. The medicine chip cleaning air intake and collection assembly includes a medicine chip cleaning air intake pipe 12 and a medicine chip collection duct 4. The medicine chip cleaning air intake pipe 12 is installed on the embedded protective cover. The output end of the medicine chip cleaning air intake pipe 12 is located inside the embedded protective cover, and the input end is connected to the air source (which can be air). One end of the medicine chip collection duct 4 is connected to the inside of the embedded protective cover, and the output end is connected to the negative pressure source (which can be an industrial-grade negative pressure vacuum cleaner).

[0022] The end faces of the right interlocking protective cover 2 and the left interlocking protective cover 13 of this embodiment are both fan-shaped, preferably right-angled fan-shaped; the right interlocking protective cover flexible protective curtain 1 and the left interlocking protective cover flexible protective curtain 14 of this embodiment can be strips of white sweat cloth, one side of the right interlocking protective cover flexible protective curtain 1 is fixedly connected to the two radial edges and arc edges of the fan-shaped right interlocking protective cover 2, and the other side is used to wrap the medicine column 17 and the floating roughening head 16; one side of the left interlocking protective cover flexible protective curtain 14 is fixedly connected to the two radial edges and arc edges of the fan-shaped left interlocking protective cover 13, and the other side is used to wrap the medicine column 17 and the floating roughening head 16.

[0023] In this embodiment, the sector radius of the right embedded protective cover 2 or the left embedded protective cover 13 is smaller than the sector radius of the left embedded protective cover 13 or the right embedded protective cover 2. When the embedded protective cover is closed, the other side of the right embedded protective cover flexible protective curtain 1 and the other side of the left embedded protective cover flexible protective curtain 14 partially overlap when closed.

[0024] In this embodiment, a semicircular hole is provided on one of the right-angled sectors of the right and left interlocking protective shields 2 and 13. When the interlocking protective shields are closed, the two semicircular holes form a circular hole, which is used to closely fit the outer contour of the cylindrical powder column 17. A rectangular hole is provided on the other right-angled sector of the right or left interlocking protective shield 2 or 13, which is used to communicate with the powder collection conduit 4. In this embodiment, the rectangular hole is provided on the other right-angled side of the right interlocking protective shield 2 (i.e., the bottom of the right interlocking protective shield 2).

[0025] Two through-holes are defined on the end surface of the right or left interlocking protective cover 2, 13. In this embodiment, the two through-holes are defined on the end surface of the left interlocking protective cover 13. A powder cleaning air intake pipe fixing seat 11 is mounted in each through-hole. Each powder cleaning air intake pipe fixing seat 11 is fixedly connected to a powder cleaning air intake pipe 12. The output ends of the two powder cleaning air intake pipes 12 are connected via a multi-porous exhaust elbow 15. To match the curved surface of the interlocking protective cover, the curvature of the multi-porous exhaust elbow 15 in this embodiment corresponds to the curvature of a fan. Multiple exhaust holes are defined in the multi-porous exhaust elbow 15. A high-speed airflow (the air pressure can be 0.3 MPa to 0.4 MPa and the flow rate can be 10 to 12 m / s) is blown into the interlocking protective cover through the multi-porous exhaust elbow 15. The powder chips generated during the roughening surface treatment of the powder column 17 are blown toward the powder collection conduit 4 by the high-speed airflow.

[0026] The power source for opening and closing the chimeric protective cover of this embodiment includes a chimeric protective cover opening and closing cylinder 8, a right chimeric protective cover opening and closing push plate 3 and a left chimeric protective cover opening and closing push plate 9. The chimeric protective cover opening and closing cylinder 8 is connected to the output end of the chimeric protective cover lifting power source. The right chimeric protective cover opening and closing push plate 3 and the left chimeric protective cover opening and closing push plate 9 are respectively connected to the protruding rods on the left and right sides of the chimeric protective cover opening and closing cylinder 8. The right chimeric protective cover opening and closing push plate 3 and the left chimeric protective cover opening and closing push plate 9 are respectively fixed with connecting plates 10. The right chimeric protective cover 2 is fixed to the connecting plate 10 on the right chimeric protective cover opening and closing push plate 3, and the left chimeric protective cover 13 is fixed to the connecting plate 10 on the left chimeric protective cover opening and closing push plate 9.

[0027] The power source for lifting the interlocking protective cover in this embodiment includes a interlocking protective cover lifting cylinder 6 and a interlocking protective cover lifting cylinder rod 5. The interlocking protective cover lifting cylinder 6 is fixed to the frame through a mounting plate 7 and is located between the medicine column 17 and the floating roughening head 16. The top end of the interlocking protective cover lifting cylinder rod 5, which serves as the output end of the interlocking protective cover lifting cylinder 6, is connected to the power source for opening and closing the interlocking protective cover (i.e., the interlocking protective cover opening and closing cylinder). When the medicine column 17 is loaded into the processing position, the interlocking protective cover lifting cylinder 6 drives the interlocking protective cover to descend to the standby position.

[0028] The embedded protective cover lifting cylinder rod 5, the embedded protective cover lifting cylinder 6 and the embedded protective cover opening and closing cylinder 8 of the present invention are all existing technologies and will not be described in detail here.

[0029] The working principle of the present invention is:

[0030] The invention has two degrees of freedom of lifting and opening and closing, and can realize two functions.

[0031] The present invention is located in a standby position below the medicine column 17. After the medicine column 17 and the floating roughening head 16 are in the processing position for roughening the surface, the cylinder rod of the chimeric shield opening and closing cylinder 8 extends to drive the right chimeric shield opening and closing push plate 3 and the left chimeric shield opening and closing push plate 9 as well as the right chimeric shield 2 and the left chimeric shield 13 to move to the left and right sides, thereby opening the chimeric shield. The chimeric shield lifting cylinder 6 drives the chimeric shield lifting cylinder rod 5 to extend, lifting the chimeric shield to the working height (i.e., the closed position); then, the cylinder rod of the chimeric shield opening and closing cylinder 8 retracts, driving the right chimeric shield opening and closing push plate 3 and the left chimeric shield opening and closing push plate 9 as well as the right chimeric shield 2 and the left chimeric shield 13 to move toward the middle, thereby closing the chimeric shield. At this point, the semicircular holes on one right-angled side of the right and left interlocking shields 2 and 13 merge into a single circular hole, closely fitting the outer contour of the charge 17. The right and left interlocking shield flexible curtains 1 and 14 enclose the floating roughening head 16. During the roughening process, the floating roughening head 16 can move between the right and left interlocking shield flexible curtains 1 and 14. This completes the envelopment of the roughening process area, preventing the splashing of powder chips.

[0032] At the beginning of the roughening surface treatment, a high-speed airflow is blown in through the input end of the drug chip cleaning air inlet pipe 12 and blown out of the exhaust holes on the porous exhaust elbow 15. Driven by the high-speed airflow, the drug chips move in the chimeric protective cover and are blown toward the drug chip collection duct 4. At this time, the industrial-grade negative pressure vacuum cleaner connected to the output end of the drug chip collection duct 4 sucks the high-speed moving drug chips into the industrial-grade negative pressure vacuum cleaner, thereby collecting the drug chips. After the roughening surface treatment is completed, the high-speed airflow blowing and the negative pressure vacuum cleaner operation are stopped; the chimeric protective cover opening and closing cylinder 8 extends its cylinder rod, driving the right chimeric protective cover opening and closing push plate 3 and the left chimeric protective cover opening and closing push plate 9 as well as the right chimeric protective cover 2 and the left chimeric protective cover 13 to move to the left and right sides, thereby opening the chimeric protective cover; the chimeric protective cover lifting cylinder 6 drives the chimeric protective cover lifting cylinder rod 5 to retract and lower the chimeric protective cover to the standby height, thereby completing the entire process of the drug chip protection and collection device for the roughening surface treatment of the drug column.

[0033] The above description is only an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the present invention are included in the scope of protection of the present invention.

Claims

1. A device for protecting and collecting solid rocket motor grain scraps from roughened surface treatment, characterized by: The invention comprises a chimeric protective cover, a flexible protective curtain, a chimeric protective cover opening and closing power source, a chimeric protective cover lifting power source and a medicine scrap cleaning air intake collection component, wherein the chimeric protective cover lifting power source is installed between the medicine column (17) and the floating roughening head (16), driving the chimeric protective cover opening and closing power source, the chimeric protective cover and the flexible protective curtain to rise and fall, and the chimeric protective cover opening and closing power source is connected to the output end of the chimeric protective cover lifting power source; the chimeric protective cover is divided into a right chimeric protective cover ( 2) and the left embedded protective cover (13), the flexible protective curtain is divided into a right embedded protective cover flexible protective curtain (1) and a left embedded protective cover flexible protective curtain (14), the right embedded protective cover (2) and the left embedded protective cover (13) are fixed to the right embedded protective cover flexible protective curtain (1) and the left embedded protective cover flexible protective curtain (14) on opposite sides respectively; the left and right output ends of the embedded protective cover opening and closing power source are respectively connected to the left embedded protective cover (13) and the right embedded protective cover (2), driving The left chimeric protective cover (13) and the right chimeric protective cover (2) are moved synchronously in opposite directions, thereby realizing the opening and closing of the chimeric protective cover. The right chimeric protective cover flexible protective curtain (1) and the left chimeric protective cover flexible protective curtain (14) wrap the roughened surface of the drug column (17) and the contact end of the floating roughening head (16) in the chimeric protective cover in the closed state; the drug chip cleaning air intake collection component includes a drug chip cleaning air intake pipe (12) and a drug chip collection conduit (4), and the drug chip cleaning air intake pipe ( 12) is installed on the chimeric protective cover, the output end of the medicine chip cleaning air inlet pipe (12) is located in the chimeric protective cover, and the input end is connected to the air source, one end of the medicine chip collecting conduit (4) is connected to the inside of the chimeric protective cover, and the output end is connected to the negative pressure source, the medicine chips generated by the medicine column (17) during the roughening surface treatment process are blown toward the medicine chip collecting conduit (4) by the high-speed air flow blown in by the air source, and the negative pressure source sucks the high-speed air flow carrying medicine chips out of the chimeric protective cover through the medicine chip collecting conduit (4).

2. The device for protecting and collecting powder scraps from roughened surface treatment of solid rocket motor grains according to claim 1, characterized in that: The end faces of the right chimeric protective cover (2) and the left chimeric protective cover (13) are both fan-shaped. One side of the flexible protective curtain (1) of the right chimeric protective cover is respectively fixed to the two radial edges and the arc edge of the fan-shaped right chimeric protective cover (2), and the other side is used to wrap the medicine column (17) and the floating roughening head (16); one side of the flexible protective curtain (14) of the left chimeric protective cover is respectively fixed to the two radial edges and the arc edge of the fan-shaped left chimeric protective cover (13), and the other side is used to wrap the medicine column (17) and the floating roughening head (16).

3. The device for protecting and collecting powder scraps from roughened surface treatment of solid rocket motor grains according to claim 2, characterized in that: The sector radius of the right embedded protective cover (2) or the left embedded protective cover (13) is smaller than the sector radius of the left embedded protective cover (13) or the right embedded protective cover (2), and the other side of the right embedded protective cover flexible protective curtain (1) and the other side of the left embedded protective cover flexible protective curtain (14) partially overlap when closed.

4. The device for protecting and collecting powder scraps from roughened surface treatment of solid rocket motor grains according to claim 2, characterized in that: The fan shape is a right-angled fan shape, and a semicircular hole is provided on one right-angled side of the right-angled fan shape of the right embedded protective cover (2) and the left embedded protective cover (13), which is used to fit the outer contour of the medicine column (17); a rectangular hole is provided on the other right-angled side of the right embedded protective cover (2) or the left embedded protective cover (13) for communicating with the medicine debris collection duct (4).

5. The device for protecting and collecting powder scraps from roughened surface treatment of solid rocket motor grains according to claim 2, characterized in that: Two through holes are provided on the end surface of the right embedded protective cover (2) or the left embedded protective cover (13), and a medicine chip cleaning air intake pipe fixing seat (11) is installed in each of the through holes. A medicine chip cleaning air intake pipe (12) is fixedly connected to each of the medicine chip cleaning air intake pipe fixing seats (11), and the output ends of the two medicine chip cleaning air intake pipes (12) are connected through a porous exhaust elbow (15), and the curvature of the porous exhaust elbow (15) corresponds to the curvature of the fan.

6. The device for protecting and collecting powder scraps from roughened surface treatment of solid rocket motor grains according to claim 1, characterized in that: The chimeric protective cover opening and closing power source comprises a chimeric protective cover opening and closing cylinder (8), a right chimeric protective cover opening and closing push plate (3) and a left chimeric protective cover opening and closing push plate (9); the chimeric protective cover opening and closing cylinder (8) is connected to the output end of the chimeric protective cover lifting power source; the right chimeric protective cover opening and closing push plate (3) and the left chimeric protective cover opening and closing push plate (9) are respectively connected to the protruding rods on the left and right sides of the chimeric protective cover opening and closing cylinder (8); the right chimeric protective cover (2) is connected to the right chimeric protective cover opening and closing push plate (3) through a connecting plate (10); and the left chimeric protective cover (13) is connected to the left chimeric protective cover opening and closing push plate (9) through a connecting plate (10).

7. The device for protecting and collecting solid rocket motor grain roughening surface treatment debris according to claim 1, characterized in that: The chimeric protective cover lifting power source comprises a chimeric protective cover lifting cylinder (6) and a chimeric protective cover lifting cylinder rod (5). The chimeric protective cover lifting cylinder (6) is fixed to the frame through a mounting plate (7) and is located between the medicine column (17) and the floating roughening head (16). The top end of the chimeric protective cover lifting cylinder rod (5) serving as the output end of the chimeric protective cover lifting cylinder (6) is connected to the chimeric protective cover opening and closing power source. When the medicine column (17) is loaded into the processing position, the chimeric protective cover lifting cylinder (6) drives the chimeric protective cover to descend to the standby position.

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