Rocket body flipping device and rocket hoisting system

Abstract

The present invention provides a rocket body flipping device and a rocket hoisting system. A rocket body flipping device includes end journals, at least two end journals are clamped on the outer peripheral surface of the rocket body, and are arranged at intervals along the axial direction of the rocket body; a connecting plate is arranged along the axial direction of the rocket body and mounted on a plurality of end journals; and a lifting device, at least two lifting ends of which are connected to the connecting plate. The rocket body flipping device in the present invention only needs to be provided with a plurality of end journals on the rocket body, and a connecting plate is provided on the end journals. The lifting device is lifted at two positions of the connecting plate. By adjusting the lifting height of the two lifting points, the flipping of the rocket body can be realized. The structure is simple and the cost is low. The above structure requires very few corresponding supporting facilities, and can fully realize the erection operation of the rocket in a non-dedicated launch site, reduce the construction cost of a dedicated launch site, and reduce the requirements for the rocket launch environment.

Description

Technical Field

[0001] The present invention relates to the field of aerospace technology, and in particular to a rocket body flipping device and a rocket hoisting system. Background Art

[0002] During the assembly and launch process of the rocket, the rocket body needs to be hoisted and turned over. In the prior art, medium-sized solid-propellant carrier rockets are usually erected using a hydraulic erection cylinder or a winch when being turned over.

[0003] However, whether it is the erection cylinder mode or the winch mode, it requires a large investment of funds and a long development cycle, which is not suitable for the development needs of commercial aerospace. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of high cost and long development cycle of the erection device of the medium-sized solid carrier rocket in the prior art, thereby providing a rocket body flipping device and a rocket lifting system.

[0005] In order to solve the above problems, the present invention provides a rocket body flipping device including end journals, at least two of which are clamped on the outer peripheral surface of the rocket body and arranged at intervals along the axial direction of the rocket body; a connecting plate, which is arranged along the axial direction of the rocket body and mounted on several of the end journals; and a lifting device, at least two of which lifting ends are connected to the connecting plate.

[0006] Furthermore, the mating and mounting portion between the end journal and the arrow body is constructed as a curved surface, and the curved surface is arranged on the outer peripheral surface of the arrow body in a fitted manner.

[0007] Furthermore, the body of the end journal is constructed in an arc shape.

[0008] Furthermore, the two end journals are symmetrically arranged at the radial ends of the arrow body to form an end journal group, and a plurality of the end journal groups are distributed at intervals along the axial direction of the arrow body.

[0009] Furthermore, the two connecting plates are symmetrically arranged at the radial ends of the arrow body and are provided on the end journal group.

[0010] Furthermore, it also includes a clamping device, which is connected to the connecting plate and the end journal at the same time to achieve fixation between the connecting plate and the end journal.

[0011] Furthermore, the clamping device includes an inner frame body detachably arranged on the connecting plate and a fastening device arranged on the inner frame body for connecting the end shaft neck.

[0012] Furthermore, the fastening device is constructed as a top-pressing structure, and at least two fastening devices are symmetrically arranged on the frame edges of the inner frame.

[0013] Furthermore, the fastening device includes a pressure bolt screwed on the inner frame and a top head arranged at the end of the pressure bolt, and under the screwing movement of the pressure bolt, the top head abuts against the end shaft neck.

[0014] Furthermore, the inner frame is constructed as a square frame, the four pressing bolts are respectively arranged on four frame edges of the frame, and at a preset installation position, the frame edges of the inner frame are respectively parallel to the axial direction and radial direction of the arrow body.

[0015] Furthermore, a connecting shaft is protrudingly provided on the outer peripheral surface of the end journal, and the plug abuts against the peripheral surface of the connecting shaft.

[0016] Furthermore, the abutting surface between the plug and the connecting shaft is constructed as a curved surface structure.

[0017] Furthermore, the connecting plate is provided with a through hole, and the connecting shaft is arranged through the through hole.

[0018] Furthermore, the connection plate is provided with an outer frame body surrounding the via hole, and the frame of the outer frame body is provided in parallel with the frame of the inner frame body.

[0019] Furthermore, an adjusting bolt is installed on the frame of the outer frame body parallel to the radial direction of the arrow body, and the end of the adjusting bolt abuts against the frame of the inner frame body.

[0020] Furthermore, a fastening bolt is installed on the frame of the outer frame body parallel to the axial direction of the arrow body, and the end of the fastening bolt abuts against the frame of the inner frame body.

[0021] Furthermore, the lifting device includes a sling, and two of the slings are respectively installed at two axial ends of the arrow body.

[0022] The present invention also provides a rocket hoisting system including any of the above-mentioned rocket body flipping devices.

[0023] The technical solution of the present invention has the following advantages:

[0024] 1. The arrow body flipping device in the present invention includes end journals, at least two of which are clamped on the outer peripheral surface of the arrow body and arranged at intervals along the axial direction of the arrow body; a connecting plate, which is arranged along the axial direction of the arrow body and mounted on a plurality of end journals; and a lifting device, at least two lifting ends of which are connected to the connecting plate.

[0025] The rocket body flipping device in the present invention only needs to be provided with a plurality of end journals on the rocket body, and a connecting plate is provided on the end journals. The lifting device is lifted at two positions of the connecting plate, and the lifting height of the two lifting points is adjusted to realize the flipping of the rocket body. The structure is simple and the cost is low. The above structure requires very few corresponding supporting facilities, and can fully realize the erection operation of the rocket in a non-dedicated launch site, thereby reducing the construction cost of a dedicated launch site and reducing the requirements for the rocket launch environment.

[0026] 2. The matching installation part between the middle end journal and the arrow body of the arrow body flipping device of the present invention is constructed as an arc surface, and the arc surface is fitted on the outer peripheral surface of the arrow body. The arc surface ensures the effective action area with the outer peripheral surface of the arrow body, and prevents deformation and damage of the arrow body surface due to excessive stress concentration.

[0027] 3. The body of the end journal in the arrow body flipping device of the present invention is constructed in an arc shape. The end journal with an arc structure is easier to clamp and install than a ring structure, which can improve the assembly efficiency.

[0028] 4. In the arrow body flipping device of the present invention, two end journals are symmetrically arranged at the radial ends of the arrow body to form an end journal group, and a plurality of end journal groups are distributed at intervals along the axial direction of the arrow body. In the present invention, end journals are arranged at both radial ends of the arrow body, and multiple groups are arranged along the axial direction, which effectively improves the stability of the arrow body during the hoisting and flipping process.

[0029] 5. The fastening device in the rocket body flipping device of the present invention includes a pressure bolt screwed on the inner frame and a head arranged at the end of the pressure bolt. Under the screwing movement of the pressure bolt, the head abuts against the end journal. Since the rocket body is long, there are assembly errors between the end journals fixed thereon, which may cause the installation position on the connecting plate to be unable to effectively achieve precise positioning and matching with the end journal, resulting in the inability to assemble. Therefore, the above-mentioned fastening device is designed to effectively adapt to different assembly errors by adjusting the rotation stroke of the pressure bolt in the radial and axial directions, thereby ensuring the accurate assembly between the connecting plate and the end journal.

[0030] 6. In the arrow body flipping device of the present invention, the inner frame is constructed as a square frame, and the four pressing bolts are respectively arranged on the four frame edges of the frame, and at the preset installation position, the frame edges of the inner frame are respectively parallel to the axial and radial directions of the arrow body, and the four pressing bolts can simultaneously adjust the radial and axial errors of the arrow body, with a larger adjustment range and better adaptability. After the pressing is in place, the fixing strength of the four pressing bolts to the end shaft neck is better.

[0031] 7. The abutting surface between the top and the connecting shaft in the arrow body flipping device of the present invention is constructed as an arc surface structure. Since the circumferential surface of the connecting shaft is an arc surface, this design structure can ensure sufficient contact of the abutting surface, thereby ensuring the reliability of fixation between the clamping device and the end shaft neck.

[0032] 8. In the arrow body flipping device of the present invention, an adjusting bolt is installed on the border of the outer frame parallel to the radial direction of the arrow body, and the end of the adjusting bolt abuts against the border of the inner frame. During the screwing process of the adjusting bolt, it abuts against the border of the inner frame, pushing the inner frame to move axially in the outer frame, thereby achieving fine adjustment of the position of the entire clamping device to ensure that the center of the outer frame coincides with the axis of the connecting shaft as much as possible during the initial assembly, so as to reduce the adjustment amount of the pressing bolt, so as to better solve the assembly error problem and improve the efficiency of the adjustment.

[0033] 9. The lifting device in the rocket body flipping device of the present invention includes a sling, and the two slings are respectively installed at the axial ends of the rocket body. This position setting has good stability in lifting the rocket and is convenient for adjusting the flipping angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of the arrow body flipping device in Example 1 provided by the present invention;

[0036] Figure 2 A top view of the arrow body flipping device in Example 1 provided by the present invention;

[0037] Figure 3 A schematic diagram of the structure of the lifting device in Example 1 provided by the present invention;

[0038] Figure 4 A schematic diagram of the structure of the end journal locked state in Embodiment 1 provided by the present invention;

[0039] Figure 5 A front view of the end journal in Example 1 provided by the present invention;

[0040] Figure 6 A side view of the end journal in Embodiment 1 provided by the present invention;

[0041] Figure 7 This is a schematic structural diagram of the clamping device in Example 1 provided by the present invention.

[0042] Description of reference numerals:

[0043] 1-end journal; 11-connecting shaft; 12-connecting piece; 13-reinforcement rib;

[0044] 2 – Arrow body;

[0045] 3-connecting plate; 31-outer frame; 32-adjusting bolt; 33-fastening bolt;

[0046] 4-lifting device; 41-sling; 42-crossbar; 43-shackle;

[0047] 5-clamping device; 51-inner frame; 52-fastening device; 521-pressure bolt; 522-head; 5211-pressure bolt; 5212-pressure nut. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] Example 1

[0053] like Figure 1 - Figure 7As shown, a rocket body flipping device provided for this embodiment includes an end journal 1, at least two end journals 1 are clamped on the outer peripheral surface of the rocket body 2, and are arranged at intervals along the axial direction of the rocket body 2; a connecting plate 3, which is arranged along the axial direction of the rocket body 2 and mounted on a plurality of end journals 1; and a lifting device 4, at least two lifting ends of which are connected to the connecting plate 3.

[0054] like Figure 1 and Figure 2 As shown, the object flipped by the arrow body flipping device in this embodiment is the entire rocket, and the flipping requirement is to flip the horizontally placed rocket to an upright state to facilitate subsequent launching work. The flipping angle of the arrow body in this embodiment is about 90°.

[0055] Because the entire arrow is flipped, it is heavy and has a long body. In order to better protect the arrow body 2 and the stability of the flipping, in this embodiment, end shaft necks 1 are symmetrically arranged in the radial direction of the arrow body 2. Two symmetrically arranged end shaft necks 1 constitute an end shaft neck group. In this embodiment, such end shaft neck groups are installed in a total of six groups along the axial direction of the rocket arrow body 2.

[0056] Of course, in some other embodiments, depending on the object of the overturned arrow body, the number of end journals 1 is set according to load requirements.

[0057] In some other embodiments, depending on the object of the turned-over arrow body, several end journals 1 may be arranged only on the same radial side of the arrow body 2 to save materials and reduce the complexity of the structure.

[0058] like Figure 2 As shown in the figure, there are four lifting ends in this embodiment, which are respectively installed on the end journal groups at the axial ends of the rocket body 2. This design has good stability in lifting the rocket and is convenient for adjusting the flip angle.

[0059] like Figure 3 The specific structure of the lifting device 4 is shown in the figure, which includes a cross beam 42 and a sling 41 respectively connected to the upper and lower ends of the cross beam 42. The tail end of the sling 41 at the lower end of the cross beam 42 is connected to the lifting end, and the tail end of the sling 41 at the upper end of the cross beam 42 is gathered at the lifting end of the external power device. In the lifting tension state, the cross beam 42 and the sling 41 at the upper end are in a triangular state to provide better lifting strength.

[0060] It should also be noted that the connection structure of the connection point involved in the above-mentioned lifting device 4 is a commonly used shackle structure to facilitate the disassembly of the lifting device 4.

[0061] It should also be noted that the power device in this embodiment is a common truss crane, and two truss cranes act on the lifting ends of the above-mentioned two sets of lifting devices 4 respectively.

[0062] Through the above explanation, it is found that the rocket body flipping device in this embodiment only needs to be provided with a number of end journals 1 on the rocket body 2, a connecting plate 3 is provided on the end journal 1, and the lifting device 4 is lifted at two positions of the connecting plate 3. By adjusting the lifting height of the two lifting points, the rocket body can be flipped. The structure is simple and the cost is low. The above structure requires very few corresponding supporting facilities, and can fully realize the erection operation of the rocket in a non-dedicated launch site, reduce the construction cost of a dedicated launch site, and reduce the requirements for the rocket launch environment.

[0063] like Figure 4 -6, shows the specific structure of the end journal 1 and its installation method on the arrow body 2, which will be described in detail below to more clearly illustrate this solution.

[0064] like Figure 4 As shown, the fitting location of the end journal 1 and the arrow body 2 is constructed as an arc surface, which is fitted on the outer peripheral surface of the arrow body 2 and matched with the outer peripheral surface of the arrow body 2, thereby ensuring the effective action area with the outer peripheral surface of the arrow body 2 and preventing deformation and damage to the surface of the arrow body 2 due to excessive stress concentration.

[0065] Furthermore, the body of the end journal 1 is constructed in an arc shape, and the end journal with an arc structure is easier to clamp and install compared to a ring structure, which can improve assembly efficiency.

[0066] like Figure 5 As shown, in this embodiment, eight fixing holes are arranged on the body of the end journal 1, and threaded holes are arranged correspondingly on the arrow body 2, and the end journal 1 is locked on the arrow body 2 by bolts.

[0067] In order to ensure the stability of the connection and reduce the stress intensity at the end journal 1, two connecting plates 3 are symmetrically arranged at the radial ends of the arrow body 2 and set on the end journal group, connecting the six end journals 1 on each side into one, thereby enhancing the overall structural strength.

[0068] like Figure 6 As shown in the figure, a connecting shaft 11 is protrudingly provided on the outer peripheral surface of the end journal 1, and the connecting shaft is used to cooperate with the subordinate clamping device to achieve the fixation of the connecting plate 3 and the end journal 1, which will be specifically explained below.

[0069] Furthermore, a reinforcing rib 13 is formed at the connecting shaft 11 to enhance the connection strength between the connecting shaft 11 and the end journal 1 body.

[0070] The above describes the assembly relationship between the end journal 1 and the arrow body 2 , and the following describes how the connecting plate 3 is connected to the end journal 1 .

[0071] like Figure 7As shown in the figure, the present embodiment also includes a clamping device 5, which is connected to the connecting plate 3 and the end journal 1 at the same time to achieve the fixation between the connecting plate 3 and the end journal 1. The clamping device 5 includes an inner frame 51 detachably arranged on the connecting plate 3 and a fastening device 52 arranged on the inner frame 51 for connecting the end journal 1.

[0072] Since the rocket body is long, there are assembly errors between the end shaft necks fixed thereon, which may cause the installation position on the connecting plate to be unable to effectively achieve precise positioning and matching with the end shaft neck 1, resulting in failure to assemble. Therefore, the fastening device 52 in this embodiment includes a pressure bolt 521 screwed on the inner frame 51 and a top head 522 arranged at the end of the pressure bolt 521. When the pressure bolt 521 is screwed, the top head 522 abuts against the end shaft neck 1. By adjusting the rotation stroke of the pressure bolt in the radial and axial directions, different assembly errors can be effectively adapted to ensure accurate assembly between the connecting plate and the end shaft neck.

[0073] The inner frame 51 in this embodiment is constructed as a square frame, and the four pressing bolts 521 are symmetrically arranged on the four frame edges of the inner frame 51, and at the preset installation position, the frame edges of the inner frame 51 are respectively parallel to the axial direction and radial direction of the arrow body 2. The four pressing bolts 521 can simultaneously adjust the radial and axial errors of the arrow body 2, with a larger adjustment range and better adaptability, and after the pressing is in place, the four pressing bolts 521 have a better fixing strength on the end journal 1.

[0074] The pressing bolt 521 in this embodiment includes a pressing screw 5211 screwed on the frame of the inner frame 51, and a pressing nut 5212 screwed on the pressing screw 5211. The pressing nut 5212 is driven by external force to drive the pressing screw 5211 to rotate so that the top head 522 is close to or away from the connecting shaft 11.

[0075] In some other embodiments, the above-mentioned pressing bolts 521 are only symmetrically implemented on the two frame sides of the inner frame 51, which can only achieve axial or radial clamping and fixing, but the structure is simple.

[0076] In some other embodiments, the number of the above-mentioned pressing bolts 521 may be three. In a specific embodiment, the three pressing bolts 521 are arranged at an angle of 120°.

[0077] Furthermore, the abutting surface between the top head 522 and the connecting shaft 11 in this embodiment is constructed as an arc surface structure. This design structure can ensure sufficient contact between the abutting surfaces, thereby ensuring the reliability of the fixation between the clamping device 5 and the end journal 1.

[0078] Furthermore, a through hole is provided on the connecting plate 3, and the connecting shaft 11 is provided through the through hole. An outer frame 31 is welded around the through hole on the connecting plate 3, and the frame of the outer frame 31 is provided in parallel with the frame of the inner frame 51.

[0079] Before using the clamping device 5 to clamp on the connecting shaft 11, it is necessary to find the center of the outer frame as close to the axis of the connecting shaft 11 as possible during the initial assembly, so as to reduce the adjustment amount of the top pressure bolt, so as to better solve the assembly error problem and improve the efficiency of the adjustment. Therefore, in this embodiment, the outer frame 31 is parallel to the radial direction of the arrow body 2. The end of the adjusting bolt 32 is abutted against the frame of the inner frame 51. The adjustment principle is basically the same as that of the top pressure bolt, which will not be repeated here.

[0080] When the inner frame is adjusted into place by the adjusting bolts 32 , a fastening bolt 33 is installed on the frame of the outer frame 31 parallel to the axial direction of the arrow body 2 , and the end of the fastening bolt 33 abuts against the frame of the inner frame 51 to fix the inner frame 51 .

[0081] After that, the adjusting pressure bolt is locked on the connecting shaft 11, thereby achieving the fixing of the connecting plate 3 on the end journal 1.

[0082] It should also be noted that the connection methods between the twelve end journals 1 and the connecting plates 3 in this embodiment all adopt the above-mentioned adjustment process to ensure the accuracy of the final installation of the connecting plates 3, providing a good implementation basis for the rotation and flipping of the rocket.

[0083] Example 2

[0084] This embodiment provides a rocket hoisting system, including the rocket body flipping device described in the above-mentioned embodiment 1, and has all its technical advantages, which will not be described one by one here.

[0085] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A rocket body flipping device, It is characterized in that include: End journals (1), at least two of the end journals (1) being clamped on the outer peripheral surface of the arrow body (2) and spaced apart along the axial direction of the arrow body (2), and a connecting shaft (11) being protrudingly provided on the outer peripheral surface of the end journals (1); A connecting plate (3) is arranged along the axial direction of the arrow body (2) and is mounted on the plurality of end journals (1); a through hole is provided on the connecting plate (3), and the connecting shaft (11) is arranged through the through hole; A lifting device (4), at least two lifting ends of which are connected to the connecting plate (3); A clamping device (5) is connected to the connecting plate (3) and the end journal (1) at the same time to achieve fixation between the connecting plate (3) and the end journal (1), the clamping device (5) comprising an inner frame (51) detachably arranged on the connecting plate (3) and a fastening device (52) arranged on the inner frame (51) and used to connect the end journal (1); The fastening device (52) is constructed as a pressing structure, and at least two fastening devices (52) are symmetrically arranged on the frame edges of the inner frame (51); the fastening device (52) comprises a pressing bolt (521) screwed on the inner frame (51) and a top head (522) arranged at the end of the pressing bolt (521); when the pressing bolt (521) is screwed, the top head (522) abuts against the circumferential surface of the connecting shaft (11); An outer frame (31), the connecting plate (3) is provided with an outer frame (31) surrounding the through hole, an adjusting bolt (32) is installed on the frame of the outer frame (31) parallel to the radial direction of the arrow body (2), the end of the adjusting bolt (32) abuts against the frame of the inner frame (51), and a fastening bolt (33) is installed on the frame of the outer frame (31) parallel to the axial direction of the arrow body (2), the end of the fastening bolt (33) abuts against the frame of the inner frame (51).

2. The arrow body flipping device according to claim 1, It is characterized in that The matching installation point between the end journal (1) and the arrow body (2) is constructed as a curved surface, and the curved surface is arranged to fit the outer peripheral surface of the arrow body (2).

3. The arrow body flipping device according to claim 2, It is characterized in that The body of the end journal (1) is configured in an arc shape.

4. The arrow body flipping device according to claim 3, It is characterized in that The two end journals (1) are symmetrically arranged at the radial ends of the arrow body (2) to form an end journal group, and a plurality of the end journal groups are distributed at intervals along the axial direction of the arrow body (2).

5. The arrow body turning device according to claim 4, It is characterized in that The two connecting plates (3) are symmetrically arranged at the radial ends of the arrow body (2) and are provided on the end journal group.

6. The arrow body turning device according to claim 1, It is characterized in that The inner frame (51) is constructed as a square frame, the four pressing bolts (521) are respectively arranged on four frame edges of the frame (51), and at a preset installation position, the frame edges of the inner frame (51) are respectively parallel to the axial direction and radial direction of the arrow body (2).

7. The arrow body turning device according to claim 1, It is characterized in that The abutting surface between the top head (522) and the connecting shaft (11) is constructed as a curved surface structure.

8. The arrow body flipping device according to claim 1, It is characterized in that The frame of the outer frame (31) and the frame of the inner frame (51) are arranged in parallel with each other.

9. The arrow body turning device according to claim 4, It is characterized in that The lifting device (4) comprises a sling (41), and two slings (41) are respectively installed at two axial ends of the arrow body (2).

10. A rocket hoisting system, It is characterized in that include: The arrow body flipping device as described in any one of claims 1-9.

Images