CN213616488U - General type assembly fixture of threaded connection structure - Google Patents
General type assembly fixture of threaded connection structure Download PDFInfo
- Publication number
- CN213616488U CN213616488U CN202022504924.9U CN202022504924U CN213616488U CN 213616488 U CN213616488 U CN 213616488U CN 202022504924 U CN202022504924 U CN 202022504924U CN 213616488 U CN213616488 U CN 213616488U
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- support ring
- threaded
- stop block
- threaded connection
- connection structure
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Abstract
The utility model discloses a threaded connection structure's general type assembly fixture, include: a support ring and a stop block; more than three threaded through holes uniformly distributed along the circumferential direction are formed in the support ring, and the axis of each threaded through hole is consistent with the radial direction of the support ring; the inner ring surface of the support ring is correspondingly connected with each thread through hole by a stop block; the support ring is connected with the stop block through a bolt; the assembling tool overcomes the defect of specialization of the assembling tool during the thread assembly of the small solid rocket engine, has the characteristics of convenience and simplicity in operation, low production cost, high assembling efficiency and the like, and can realize the batch assembly of threaded connection.
Description
Technical Field
The utility model relates to an assembly fixture technical field, concretely relates to general type assembly fixture of threaded connection structure.
Background
Common connection modes of the solid rocket engine shell and the spray pipe include flange connection, threaded connection, pin connection, snap ring connection and the like. In recent years, with the increase in the demand for miniaturized rocket system, the screw connection structure has been used in many applications for small solid rocket engines. The main reasons are that the threaded connection structure is lighter in passive mass than a flange connection structure, simple to assemble than a snap ring connection structure, and lower in machining precision requirement than a pin connection structure, and based on the advantages, the threaded connection structure becomes a preferred structure on a small solid rocket engine. However, since the small solid rocket engines are generally produced in a large number of types, special tools need to be designed for assembly, and for engines of different diameter series, different special tools need to be designed, which increases the production cost and management cost of products. Based on the reasons, an assembly tool which can be universal needs to be designed, and the assembly tool has urgent practical significance for improving production efficiency and reducing production and management cost.
Disclosure of Invention
In view of this, the utility model provides a threaded connection structure's general type assembly fixture can overcome the defect of small-size solid rocket engine assembly fixture specialization when screw thread assembles.
The technical scheme of the utility model is that: the utility model provides a threaded connection's general type assembly fixture, includes: a support ring and a stop block; more than three threaded through holes uniformly distributed along the circumferential direction are formed in the support ring, and the axis of each threaded through hole is consistent with the radial direction of the support ring; the inner ring surface of the support ring is correspondingly connected with each thread through hole by a stop block; the stop block is provided with a threaded blind hole, and the support ring is connected with the stop block through a bolt.
Preferably, a handle is arranged on the outer annular surface of the support ring.
Preferably, the stopper has a rectangular parallelepiped block structure.
Has the advantages that:
(1) the utility model discloses an assembly fixture specialization's defect when assembly fixture has solved small-size solid rocket engine screw assembly, has convenient operation simple, low in production cost, characteristics such as assembly efficiency height can realize threaded connection's mass assembly.
(2) The utility model discloses a handle that sets up in the assembly fixture is convenient for operator's gripping, and then is favorable to the convenience of reinforcing operation and carrying.
(3) The utility model discloses a dog design among the assembly fixture is the rectangular bodily form, and through the cooperation of the technology rectangular channel on dog and the spray tube convergence section casing, can fix the spray tube as the fulcrum at any time to further be favorable to small-size solid rocket engine threaded connection's batchization assembly.
Drawings
Fig. 1 is a schematic structural diagram of the assembly fixture of the present invention.
Fig. 2 is a schematic structural diagram of the middle support ring of the present invention.
Fig. 3 is a schematic structural view of the middle stop of the present invention.
Wherein, 1-support ring, 2-stop block, 3-bolt, 4-nozzle convergent section shell.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
The embodiment provides a general type assembly fixture of threaded connection structure, can overcome the defect of assembly fixture specialization when small-size solid rocket engine screw assembly.
As shown in fig. 1 to 3, the general assembly fixture includes: a support ring 1 and a stop block 2; more than three threaded through holes uniformly distributed along the circumferential direction are formed in the support ring 1, and the axis of each threaded through hole is consistent with the radial direction of the support ring 1; a stop block 2 is correspondingly connected with each threaded through hole on the inner ring surface of the support ring 1, and a handle is arranged on the outer ring surface of the support ring 1; wherein, dog 2 is cuboid block structure, and its one end towards support ring 1 sets up the screw thread blind hole, and support ring 1 passes through bolt 3 with dog 2 and links to each other.
When the nozzle convergent section shell 4 is used, more than three process rectangular grooves which are uniformly distributed along the circumferential direction are formed in the nozzle convergent section shell 4, the width of each process rectangular groove is about 1/32 of the maximum circumference of the nozzle convergent section shell 4, and the maximum depth of the process rectangular groove relative to the outer surface of the nozzle convergent section shell 4 is 2-3 mm, so that the weakening of the nozzle convergent section shell 4 is reduced to the maximum extent;
sleeving the support ring 1 at the position corresponding to the technological rectangular groove of the spray pipe convergence section shell 4 through the spray pipe outlet; aiming at the spray pipe convergence section shells 4 with different outer diameters, the depth of screwing the bolt 3 into the support ring 1 is adjusted, the stop block 2 is pushed to move towards the spray pipe convergence section shell 4, and the stop block 2 is matched with a rectangular groove on the spray pipe convergence section shell 4 (the matching of the rectangle at the end part of the stop block and the rectangular groove is beneficial to preventing the stop block 2 from moving); finally, the nozzle and the nozzle convergent section housing 4 are screwed in place by the handle of the support ring 1.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a threaded connection's general type assembly fixture which characterized in that includes: a support ring (1) and a stop block (2); more than three threaded through holes uniformly distributed along the circumferential direction are formed in the support ring (1), and the axis of each threaded through hole is consistent with the radial direction of the support ring (1); a stop block (2) is correspondingly connected with each threaded through hole on the inner ring surface of the support ring (1); the stop block (2) is provided with a threaded blind hole, and the support ring (1) is connected with the stop block (2) through a bolt (3).
2. The universal assembling tool for the threaded connection structure according to claim 1, wherein a handle is provided on the outer annular surface of the support ring (1).
3. The universal type assembling tool for the threaded connection structure according to claim 1, wherein the stopper (2) is a rectangular parallelepiped block structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022504924.9U CN213616488U (en) | 2020-11-03 | 2020-11-03 | General type assembly fixture of threaded connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022504924.9U CN213616488U (en) | 2020-11-03 | 2020-11-03 | General type assembly fixture of threaded connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213616488U true CN213616488U (en) | 2021-07-06 |
Family
ID=76628285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022504924.9U Active CN213616488U (en) | 2020-11-03 | 2020-11-03 | General type assembly fixture of threaded connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213616488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685844A (en) * | 2021-08-24 | 2021-11-23 | 中国航发湖南动力机械研究所 | Little return bend assembly fixture of combustion chamber full ring test spare |
| CN114799729A (en) * | 2022-03-18 | 2022-07-29 | 宜昌船舶柴油机有限公司 | Assembly tool and method for reinforcing back ring of cylinder sleeve of large-cylinder-diameter low-speed diesel engine |
-
2020
- 2020-11-03 CN CN202022504924.9U patent/CN213616488U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685844A (en) * | 2021-08-24 | 2021-11-23 | 中国航发湖南动力机械研究所 | Little return bend assembly fixture of combustion chamber full ring test spare |
| CN114799729A (en) * | 2022-03-18 | 2022-07-29 | 宜昌船舶柴油机有限公司 | Assembly tool and method for reinforcing back ring of cylinder sleeve of large-cylinder-diameter low-speed diesel engine |
| CN114799729B (en) * | 2022-03-18 | 2024-03-08 | 宜昌船舶柴油机有限公司 | Assembly tool and method for reinforcing back ring of cylinder liner of large-diameter low-speed diesel engine |
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