CN219442134U - Support rotating tool for spraying engine shell lining - Google Patents
Support rotating tool for spraying engine shell lining Download PDFInfo
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- CN219442134U CN219442134U CN202223409002.5U CN202223409002U CN219442134U CN 219442134 U CN219442134 U CN 219442134U CN 202223409002 U CN202223409002 U CN 202223409002U CN 219442134 U CN219442134 U CN 219442134U
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- chuck
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- spraying
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a supporting and rotating tool for spraying an engine shell lining, which comprises a chuck, a pull rod, a fixed ring, a screw rod, a gasket and a jacking block, wherein the chuck is arranged on the chuck; the spigot of the chuck is propped against the end face of the engine shell, two uniformly distributed through holes are formed in the chuck and are used for being connected with the pull rod, and the other end of the pull rod is connected with the fixed ring; the inner wall of the fixed ring is provided with two supporting rods at 90 degrees intervals, the supporting rods are provided with arc-shaped supporting blocks, the fixed ring is also provided with two threaded sleeves at 90 degrees intervals, a screw rod is connected to the threaded sleeves through threads, and the bottom of the screw rod is a hemispherical body and is propped against the jacking blocks; a gasket is arranged above the top block to prevent the screw from being separated from the top block; the position of the jacking block is adjusted through the threaded section of the adjusting screw, so that the jacking block jacks the engine shell. The utility model solves the defects of overlong pull rod, overlarge deflection of the pull rod and difficult connection, eliminates the risk of twisting the pull rod in the process of rotating the shell, and improves the safety of the spraying process of the shell lining of the solid rocket engine.
Description
Technical Field
The utility model relates to the technical field of solid rocket engines, in particular to a supporting and rotating tool for spraying an engine shell lining.
Background
In the spraying process of the solid rocket engine shell lining, the tool is required to be utilized to realize the rotation of the solid rocket engine shell lining. In order to achieve the purpose of reducing the weight of the shell, the engine shell is designed to be of a flange-free connection structure, and therefore new requirements are put on lining spraying tools. The most commonly used structure at present is the structure of chuck and pull rod around, but this kind of structure has the pull rod overlength, the too big and difficult shortcoming of connecting of pull rod deflection, has the risk of pull rod "twist dough twist" simultaneously in the rotatory in-process of casing. Therefore, in order to overcome the above drawbacks and improve the safety of the spraying process of the solid rocket engine casing lining, a new supporting and rotating tool is required to be sought to have higher engineering practical value.
Disclosure of Invention
The utility model solves the technical problems that: the utility model provides a support rotatory frock for spraying of engine casing lining, its simple structure, and convenient operation can effectively improve the security of solid rocket engine casing lining spraying process.
The solution of the utility model is as follows: a supporting and rotating tool for spraying an engine shell lining comprises a chuck, two pull rods, a gasket and a top ring assembly; the top ring assembly comprises a fixed ring, two screws and two top blocks;
the chuck consists of a disc and a circular ring arranged on the disc, wherein the inner diameter and the outer diameter of the circular ring are provided with hoops perpendicular to the disc, the outer diameter hoops are sleeved on the circumference of the disc, the inner diameter hoops form a spigot of the chuck, and the end face of the engine shell is propped against the spigot of the chuck; two uniformly distributed through holes are formed in the chuck, the two through holes penetrate through the circular ring and the disc, one ends of the two pull rods penetrate through the two through holes respectively and are connected with the chuck, and the other ends of the two pull rods are connected with the fixed ring; setting 1 positioning point every 90 degrees along the inner wall of the fixed ring, and setting 4 positioning points in total; wherein two adjacent positioning points are provided with two supporting rods, and the other two adjacent positioning points are provided with two threaded sleeves; the two support rods are provided with arc support blocks, the two screws are respectively connected to the two screw sleeves through threads, and the bottoms of the screws are hemispheres and are propped against the jacking blocks; a gasket is arranged above the top block to prevent the screw rod from being separated from the top block, so that the screw rod and the top block are always integrated; the position of the jacking block is adjusted through the threaded section of the adjusting screw, so that the jacking block jacks the engine shell, and the engine shell is fixedly supported in the fixing ring through the supporting rod and the jacking block.
Further, threads are arranged at two ends of each pull rod.
Further, two connecting blocks are welded on the inner wall of the fixed ring at positions avoiding 4 positioning points, the two connecting blocks are separated by 180 degrees and positioned between the threaded sleeve and the adjacent supporting rods, a threaded hole is formed in the center of each connecting block, and the end parts of the two pull rods penetrate through the two threaded holes respectively to be connected with the fixed ring and are fastened with the fixed ring through nuts.
Further, at the end of the pull rod connected with the chuck, a nut is sleeved on the pull rod, the pull rod penetrates through the through hole of the chuck, the nut is arranged on one side of the circular ring of the chuck, then a second nut is sleeved at the end part of the pull rod, and the second nut is arranged on one side of the circular ring of the chuck.
Further, the supporting block is stuck with a silicone rubber pad, and the contour and the size of the inner cambered surface of the supporting block after the silicone rubber pad is stuck are the same as those of the outer surface of the engine shell.
Further, the intrados of the top block, which is contacted with the engine shell, is pasted with a silicone rubber pad, and the intrados of the top block, which is pasted with the silicone rubber pad, is identical to the outline and the size of the outer surface of the engine shell.
Further, the inner diameter of the spigot of the chuck is stuck with a silicone rubber pad, and the silicone rubber pad is used for avoiding the collision phenomenon of the engine shell in the lining spraying process.
Further, the diameter of the hemispheroids at the bottom of the screw rod is smaller than the diameter of the central hole of the top block, the diameter of the inner hole of the gasket is larger than the diameter of the cylindrical section of the screw rod and smaller than the diameter of the hemispheroids of the screw rod, and the gasket is connected with the top block through bolts.
Further, a nut is arranged on the upper portion of the threaded section of the screw rod and used for fixing the ejector block after the final position adjustment of the screw rod is completed.
Further, based on the support rotating tool disclosed by the utility model, the support rotating tool assembly method for spraying the engine shell lining is provided, and the assembly steps are as follows:
step one, two top blocks are respectively adjusted to the maximum distance along the outer diameter direction of the fixed ring,
step two, sleeving the top ring assembly on the outer side of the engine shell from one end of the engine shell, enabling the end face of the engine shell to prop against the spigot of the chuck,
step three, sleeving nuts on one end of the two pull rods connected with the fixed ring, wherein the nuts are arranged on the surface of the fixed ring, and the end heads of the pull rods penetrate through threaded holes of connecting blocks of the fixed ring;
step four, sleeving a nut on one end of the two pull rods connected with the chuck, enabling the pull rods to pass through the through holes of the chuck, installing the nut on the circular ring surface of the chuck, sleeving a second nut on the end part of the pull rods, and installing the second nut on the circular ring surface of the chuck;
step five, adjusting the two screws until the spigot of the chuck is tightly attached to the outer side of the engine shell, and the inner surface of the top block is attached to the inclined conical surface of the shell, and fixing the top block by using a nut on a threaded section of the screw;
and step six, fastening a nut between the pull rod and the chuck and a nut between the pull rod and the fixing ring.
Furthermore, the head part and the tail part of the engine shell are supported and fixed through two sets of identical supporting and rotating tools, and the supporting and rotating tools at the head part and the tail part are symmetrically installed. After the head and the tail of the engine shell are all arranged on the supporting and rotating tool, the shell is moved to the roller frame, the outer end face of the chuck is fixed in the clamping groove wheel, the supporting and rotating function of the shell is realized, and then the lining spraying procedure is carried out.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The shell lining spraying support rotating tool is simple in structure and convenient to operate, and the defects that the pull rod is overlong, the pull rod is overlarge in deflection and difficult to connect are completely overcome by designing the matching relation between the pull rod and the chuck, between the pull rod and the fixed ring and between the fixed ring and the ejector block, meanwhile, the risk that the shell rotates by Cheng Zhongla rods and turns around is eliminated, and the safety of the solid rocket engine shell lining spraying process is improved.
Drawings
FIG. 1 is a schematic diagram illustrating an assembly of a rotary fixture for spray coating a liner of a housing according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a top ring assembly according to an embodiment of the present utility model.
Wherein: 1. a chuck; 2. a pull rod; 3. a nut; 4. a fixing ring; 5. a screw; 6. a gasket; 7, a top block; 8. a connecting block; 9. a support rod; 10. a support block; 11. an engine housing; 12. a screw sleeve.
Detailed Description
The utility model is further elucidated below in connection with the accompanying drawings.
As shown in fig. 1, the supporting and rotating tool for spraying the engine shell lining provided by the utility model comprises a chuck 1, two pull rods 2, a gasket 6 and a top ring assembly; the top ring assembly comprises a fixed ring 4, two screws 5 and two top blocks 7.
The chuck 1 is a rotating body with a Z-shaped rotating section, and consists of a disc and a circular ring arranged on the disc. The inside and outside footpath of ring is equipped with the clamp of perpendicular to disc, and external diameter clamp cover is in the circumference of disc, and internal diameter clamp forms the tang of chuck 1, and the terminal surface of engine casing 11 supports in the tang of chuck 1. In order to avoid collision phenomenon of the engine shell 11 in the lining spraying process, a silicon rubber pad resistant to high temperature of 80 ℃ is adhered to the inner diameter of the spigot, the inner diameter of the adhered silicon rubber pad is slightly larger than the outer diameter of the engine shell 11, two uniformly distributed through holes are formed in the chuck 1, the two through holes penetrate through the circular ring and the disc, and the diameter of the through hole is larger than that of the pull rod 2.
The two pull rods 2 pass through the two through holes and are connected with the fixed ring 4; each tie rod 2 is provided with nuts 3 on both sides of the through hole of the chuck 1 and on one side of the fixing ring for fastening connection between the chuck 1 and the fixing ring 4, preventing play of the engine housing 11 during the lining spraying process.
As shown in fig. 2, two uniformly distributed connecting blocks 8 are welded on the inner wall of the fixed ring 4, and threaded holes are formed in the connecting blocks 8 and used for connecting the pull rod 2.
As shown in fig. 2, 1 positioning point is arranged on the inner wall of the fixed ring 4 every 90 degrees, and 4 positioning points are arranged in total; wherein two adjacent positioning points are provided with two supporting rods 9, and the other two adjacent positioning points are provided with two threaded sleeves 12. The supporting rod 9 is provided with a supporting block 10, and in order to avoid the collision phenomenon of the engine shell 11 in the lining spraying process, a silicon rubber pad resistant to the high temperature of 80 ℃ is stuck on the supporting block 10, and the contour and the size of the inner cambered surface of the supporting block 10 after the silicon rubber pad is stuck are consistent with those of the outer surface of the engine shell 11. The two screws 5 are connected to the two screw sleeves 12 through threads, the bottoms of the screws 5 are hemispheres, the hemispheres prop against the top block 7, and the diameter of the hemispheres at the bottoms of the screws 5 is smaller than the diameter of the central hole of the top block 7.
A gasket 6 is arranged above the top block 7, and the gasket 6 is connected with the top block 7 through a bolt; the inner hole diameter of the gasket 6 is larger than the diameter of the cylindrical section of the screw 5 and smaller than the hemispherical diameter of the screw 5, so that the screw 5 and the top block 7 are prevented from being separated, the screw 5 and the top block 7 are always integrated, and then the position is adjusted through the thread section on the screw 5, so that the top block 7 is tightly propped against the engine shell 11.
In order to avoid collision of the engine shell 11 in the lining spraying process, a silicon rubber pad resistant to high temperature of 80 ℃ is adhered to the inner cambered surface of the top block 7, and the contour and the size of the inner cambered surface of the top block 7 after the silicon rubber pad is adhered are the same as those of the outer surface of the engine shell 11.
The upper part of the screw 5 is provided with a nut 3 for fixing the final position-adjusted rear top block 7.
The support rotating tool provided by the utility model comprises the following steps in assembly:
step one, two top blocks 7 are respectively adjusted to the maximum distance along the outer diameter direction of the fixed ring 4,
step two, sleeving the top ring assembly on the outer side of the engine shell from one end of the engine shell, enabling the end face of the engine shell to prop against the spigot of the chuck 1,
step three, sleeving nuts on one end of the two pull rods 2 connected with the fixed ring 4, wherein the nuts are arranged on the surface of the fixed ring, and the end heads of the pull rods 2 penetrate through threaded holes of the fixed ring connecting blocks 8;
step four, sleeving a nut on one end of the two pull rods 2 connected with the chuck 1, firstly, sleeving the pull rods 2 through the through holes of the chuck 1, mounting the nut on the circular ring surface of the chuck 1, sleeving a second nut on the end part of the pull rods 2, and mounting the second nut on the circular ring surface of the chuck 1;
step five, adjusting the two screws 5 until the spigot of the chuck 1 is tightly attached to the outer side of the engine shell and the inner surface of the ejector block 7 is attached to the inclined conical surface of the shell, and fixing the ejector block 7 by using nuts on thread sections of the screws 5;
and step six, fastening the nut between the pull rod 2 and the chuck 1 and the nut between the pull rod 2 and the fixed ring 4.
The head and the tail of the engine shell are supported and fixed through two sets of identical supporting and rotating tools, and the supporting and rotating tools at the head and the tail are symmetrically installed. After all the installation is completed, the shell is moved to the roller frame to realize the supporting and rotating functions of the shell, and then the lining spraying process is carried out.
Although the present utility model has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present utility model by using the methods and technical matters disclosed above without departing from the spirit and scope of the present utility model, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present utility model are within the scope of the technical matters of the present utility model.
Claims (9)
1. The supporting and rotating tool for spraying the engine shell lining is characterized by comprising a chuck (1), two pull rods (2), a gasket (6) and a top ring assembly; the top ring assembly comprises a fixed ring (4), two screws (5) and two top blocks (7);
the chuck (1) is composed of a disc and a circular ring arranged on the disc, wherein the inner diameter and the outer diameter of the circular ring are provided with hoops perpendicular to the disc, the outer diameter hoops are sleeved on the circumference of the disc, the inner diameter hoops form a spigot of the chuck (1), and the end face of the engine shell is propped against the spigot of the chuck (1); two uniformly distributed through holes are formed in the chuck (1), the two through holes penetrate through the circular ring and the disc, one ends of the two pull rods (2) penetrate through the two through holes respectively and are connected with the chuck (1), and the other ends of the two pull rods are connected with the fixed ring (4); 1 positioning point is arranged at intervals of 90 degrees along the inner wall of the fixed ring (4), and 4 positioning points are arranged in total; wherein two adjacent positioning points are provided with two supporting rods (9), and the other two adjacent positioning points are provided with two threaded sleeves (12); arc-shaped supporting blocks (10) are arranged on the two supporting rods (9), the two screws (5) are respectively connected to the two screw sleeves (12) through threads, and the bottoms of the screws (5) are hemispheres and are propped against the jacking blocks (7); a gasket (6) is arranged above the top block (7) to prevent the screw (5) from being separated from the top block (7), so that the screw (5) and the top block (7) are always integrated; the position of the jacking block (7) is adjusted through the threaded section of the adjusting screw (5), so that the jacking block (7) jacks the engine shell, and the engine shell is fixedly supported in the fixed ring (4) through the supporting rod (9) and the jacking block (7).
2. A support swivel tooling for engine housing lining spraying according to claim 1, characterized in that the two ends of each tie rod (2) are provided with threads.
3. The supporting and rotating tool for spraying the engine shell lining according to claim 1, wherein two connecting blocks (8) are welded on the inner wall of the fixed ring (4) at positions avoiding 4 positioning points, the two connecting blocks (8) are 180 degrees apart and are positioned between a threaded sleeve (12) and an adjacent supporting rod (9), a threaded hole is formed in the center of each connecting block (8), and the end parts of the two pull rods (2) penetrate through the two threaded holes respectively to be connected with the fixed ring (4) and are fastened with the fixed ring (4) through nuts.
4. A support rotation tooling for the coating of engine housing liners according to claim 1, characterized in that, at the end of the pull rod (2) connected to the chuck (1), a nut is first placed on the pull rod (2), the pull rod (2) is passed through the through hole of the chuck (1) and is mounted on the annular side of the chuck (1), then a second nut is placed on the end of the pull rod (2), and the second nut is mounted on the disk side of the chuck (1).
5. The support rotating tool for spraying the engine shell lining according to claim 1, wherein a silicon rubber pad is attached to the support block (10), and the contour and the size of the intrados of the support block (10) after the silicon rubber pad is attached are the same as those of the outer surface of the engine shell.
6. The supporting and rotating tool for spraying the lining of the engine shell according to claim 1, wherein the intrados of the top block (7) contacted with the engine shell is pasted with a silicone rubber pad, and the intrados of the top block (7) pasted with the silicone rubber pad has the same outline and size as the external surface of the engine shell.
7. The supporting and rotating tool for spraying the lining layer of the engine shell according to claim 1, wherein a silicone rubber pad is adhered to the inner diameter of the spigot of the chuck (1) and is used for avoiding the collision phenomenon of the engine shell in the lining layer spraying process.
8. The supporting and rotating tool for spraying the engine shell lining according to claim 1, wherein the diameter of a hemisphere at the bottom of the screw (5) is smaller than the diameter of a central hole of the top block (7), the diameter of an inner hole of the gasket (6) is larger than the diameter of a cylindrical section of the screw (5) and smaller than the diameter of a hemisphere of the screw (5), and the gasket (6) is connected with the top block (7) through bolts.
9. A support and rotation tool for spraying an engine housing lining according to claim 1, characterized in that the screw section upper part of the screw (5) is provided with a nut for fixing the ejector block (7) after the final position adjustment of the screw (5) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223409002.5U CN219442134U (en) | 2022-12-12 | 2022-12-12 | Support rotating tool for spraying engine shell lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223409002.5U CN219442134U (en) | 2022-12-12 | 2022-12-12 | Support rotating tool for spraying engine shell lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219442134U true CN219442134U (en) | 2023-08-01 |
Family
ID=87410359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223409002.5U Active CN219442134U (en) | 2022-12-12 | 2022-12-12 | Support rotating tool for spraying engine shell lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219442134U (en) |
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2022
- 2022-12-12 CN CN202223409002.5U patent/CN219442134U/en active Active
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