A phase-adjustable rocket capsule docking structure

Abstract

The present invention relates to a phase-adjustable rocket capsule docking structure, comprising a front connector, a rear connector, an adjustment ring, a retaining ring, a stud bolt and a nut; the retaining ring is installed in the annular positioning groove of the rear connector, and the adjustment ring is installed between the retaining ring and the annular limit platform in the inner cavity of the rear connector; the rear end thread of the stud bolt is screwed into the threaded hole of the adjustment ring, the front end threaded section of the stud bolt passes through the annular connecting plate at the rear end of the front connector, and the front end protruding part of the stud bolt is sleeved with the nut; when the nut is not tightened, the circumferential phase between the front connector and the rear connector is adjustable, and when the nut is tightened, the circumferential phase between the front connector and the rear connector is fixed. The rocket capsule docking structure of the present invention can realize flexible adjustment of any phase angle of the two sections of the cabin on the basis of ensuring reliable connection of the two sections of the cabin.

Description

Technical Field

[0001] The invention relates to a phase-adjustable rocket capsule docking structure, belonging to the field of rocket assembly. Background Art

[0002] The docking structure of each cabin of a rocket is usually achieved by screw connection or threaded connection; for some special types of ammunition, it is necessary to ensure that there are certain phase angle requirements between the outer walls of each cabin during assembly. The docking structure of traditional cabins allows the phase angles between the cabins to be fixed before assembly. Since the shells of each cabin are processed separately in batches, if the docking phase angle is determined during the processing of each cabin shell, the processing difficulty is large and the processing cost is high. For example, the cabin docking structure connected by screws requires two precise phase angle positioning when processing the connecting screw holes of the two cabin sections, and after the two errors are accumulated, it is difficult to ensure the phase angle accuracy of the final assembly. For the cabin docking structure connected by threads, the conventional thread processing accuracy is difficult to meet the phase angle accuracy of the two cabin sections after the threads are tightened. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the traditional rocket capsule docking structure cannot meet the precise adjustment of the phase angles between the capsules, and to provide a phase-adjustable rocket capsule docking structure.

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

[0005] A phase-adjustable rocket capsule docking structure of the present invention comprises a front connector, a rear connector, an adjustment ring and a retaining ring installed in the inner cavity of the rear connector, and stud bolts and nuts for axially fixing the front connector and the rear connector;

[0006] The rear end of the front connector is provided with an annular connecting plate, and the plate surface of the annular connecting plate is axially opened with bolt passing holes evenly distributed around the circumference;

[0007] The adjusting ring is an annular plate structure whose outer diameter matches the inner diameter of the rear connector, and a group of threaded holes evenly distributed circumferentially are axially opened on the annular surface of the adjusting ring, and the circumferential distribution positions of the threaded holes on the adjusting ring match the circumferential distribution positions of the bolt through holes on the annular connecting plate of the front connector;

[0008] Both ends of the stud bolt are respectively processed with thread segments with the same thread direction, and the rear end thread segment of the stud bolt matches the thread of the threaded hole on the adjusting ring;

[0009] An annular positioning groove is provided on the front inner wall of the rear connector, and an annular limiting platform is provided behind the annular positioning groove on the front inner wall of the rear connector, and the distance between the annular positioning groove and the annular limiting platform matches the thickness of the adjustment ring;

[0010] The retaining ring is an open ring whose axial width matches the width of the annular positioning groove in the rear connector body cavity and whose radial thickness is greater than the depth of the annular positioning groove in the rear connector body cavity;

[0011] The retaining ring is installed in the annular positioning groove of the rear connector, and the adjusting ring is installed between the retaining ring and the annular limit platform in the inner cavity of the rear connector; the rear end thread of the stud bolt is screwed into the threaded hole of the adjusting ring, and the front end threaded section of the stud bolt passes through the annular connecting plate at the rear end of the front connector, and the front end protruding part of the stud bolt is sleeved with the nut; when the nut is not tightened, the circumferential phase between the front connector and the rear connector is adjustable, and when the nut is tightened, the circumferential phase between the front connector and the rear connector is fixed.

[0012] An annular positioning platform is provided on the front side of the rear end threaded section of the stud bolt to prevent the rear end threaded section of the stud bolt from passing backwards out of the threaded hole of the adjustment ring.

[0013] After the stud bolt is tightened by the nut, the side wall of the rear connector is fixed to the adjustment ring by a fastening screw, so that the adjusted front connector and the rear connector maintain the adjusted phase angle.

[0014] Beneficial effects:

[0015] The rocket cabin docking structure of the present invention has good processability, simple structure, and low processing cost. On the basis of ensuring reliable connection between the two cabin sections, it can realize flexible adjustment of any phase angle of the two cabin sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the rocket capsule docking structure of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the stud bolts in the rocket capsule docking structure of the present invention;

[0018] In the figure, 1-front connector; 2-nut; 3-stud bolt; 4-retaining ring; 5-fastening screw; 6-adjusting ring; 7-rear connector. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Example

[0021] like Figure 1 As shown, a phase-adjustable rocket capsule docking structure of the present invention comprises a front connector 1, a rear connector 7, an adjustment ring 6 and a retaining ring 4 installed in the inner cavity of the rear connector 7, and a stud bolt 3 and a nut 2 for axially fixing the front connector 1 and the rear connector 7;

[0022] The rear end of the front connecting body 1 is provided with an annular connecting plate, and the plate surface of the annular connecting plate is axially opened with bolt passing holes evenly distributed around the circumference;

[0023] The adjusting ring 6 is an annular plate structure whose outer diameter matches the inner diameter of the rear connector 7. A group of threaded holes evenly distributed circumferentially are axially opened on the annular surface of the adjusting ring 6, and the circumferential distribution positions of the threaded holes on the adjusting ring 6 match the circumferential distribution positions of the bolt through holes on the annular connecting plate of the front connector 1;

[0024] like Figure 2 As shown, both ends of the stud bolt 3 are respectively processed with thread segments with the same thread direction, and the rear end thread segment of the stud bolt 3 matches the thread of the threaded hole on the adjusting ring 6;

[0025] The front inner wall of the rear connector 7 is provided with an annular positioning groove, and an annular limiting platform is provided behind the annular positioning groove on the front inner wall of the rear connector 7. The distance between the annular positioning groove and the annular limiting platform matches the thickness of the adjustment ring 6.

[0026] The retaining ring 4 is an open ring whose axial width matches the width of the annular positioning groove in the inner cavity of the rear connector 7 and whose radial thickness is greater than the depth of the annular positioning groove in the inner cavity of the rear connector 7;

[0027] During assembly, the rear end thread of the stud bolt 3 is screwed into the threaded hole of the adjusting ring 6, the adjusting ring 6 is inserted into the front of the annular limit platform in the inner cavity of the rear connecting body 7, and the retaining ring 4 is installed in the annular positioning groove of the rear connecting body 7, so that the adjusting ring 6 is limited axially forward, and the adjusting ring 6 is rotatably connected relative to the rear connecting body 7; the front end threaded section of the stud bolt 3 passes through the annular connecting plate at the rear end of the front connecting body 1, and the front end protruding part of the stud bolt 3 is sleeved with the nut 2. After adjusting the phase angle between the front connecting body 1 and the rear connecting body 7, the nut 2 is tightened to keep the front connecting body 1 and the rear connecting body 7 fixedly connected while maintaining a fixed phase angle.

[0028] like Figure 2 As shown, a ring-shaped positioning platform is provided at the front side of the rear end threaded section of the stud bolt 3 to prevent the rear end threaded section of the stud bolt 3 from passing backward through the threaded hole of the adjustment ring 6 .

[0029] After the stud bolt 3 is tightened by the nut 2 , the side wall of the rear connector 7 and the adjustment ring 6 are fixed by the fastening screw 5 , so that the adjusted front connector 1 and the rear connector 7 maintain the adjusted phase angle.

Claims

1. A phase-adjustable rocket capsule docking structure, characterized by: It comprises a front connecting body, a rear connecting body, an adjusting ring and a retaining ring installed in the inner cavity of the rear connecting body, and stud bolts and nuts for axially fixing the front connecting body and the rear connecting body; The rear end of the front connector is provided with an annular connecting plate, and the plate surface of the annular connecting plate is axially opened with bolt passing holes evenly distributed around the circumference; The adjusting ring is an annular plate structure whose outer diameter matches the inner diameter of the rear connector, and a group of threaded holes evenly distributed circumferentially are axially opened on the annular surface of the adjusting ring, and the circumferential distribution positions of the threaded holes on the adjusting ring match the circumferential distribution positions of the bolt through holes on the annular connecting plate of the front connector; Both ends of the stud bolt are respectively processed with thread segments with the same thread direction, and the rear end thread segment of the stud bolt matches the thread of the threaded hole on the adjusting ring; An annular positioning groove is provided on the front inner wall of the rear connector, and an annular limiting platform is provided behind the annular positioning groove on the front inner wall of the rear connector, and the distance between the annular positioning groove and the annular limiting platform matches the thickness of the adjustment ring; The retaining ring is an open ring whose axial width matches the width of the annular positioning groove in the rear connector body cavity and whose radial thickness is greater than the depth of the annular positioning groove in the rear connector body cavity; The retaining ring is installed in the annular positioning groove of the rear connector, and the adjusting ring is installed between the retaining ring and the annular limiting platform in the inner cavity of the rear connector; the rear end thread of the stud bolt is screwed into the threaded hole of the adjusting ring, the front end thread section of the stud bolt passes through the annular connecting plate at the rear end of the front connector, and the front end of the stud bolt is inserted into the nut; When the nut is not tightened, the circumferential phase between the front connecting body and the rear connecting body is adjustable, and when the nut is tightened, the circumferential phase between the front connecting body and the rear connecting body is fixed.

2. The phase-adjustable rocket capsule docking structure according to claim 1, characterized in that: An annular positioning platform is arranged at the front side of the threaded section at the rear end of the stud bolt.

3. A phase-adjustable rocket capsule docking structure as claimed in claim 1 or 2, characterized in that: After the stud bolt is tightened by the nut, the side wall of the rear connector and the adjusting ring are fixed by a fastening screw.

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