Solid rocket engine lifting appliance
By designing a solid rocket engine hoist with a sliding hook device, the problem of adapting hoists of different sizes and models is solved, fast and reliable lifting is achieved, costs are reduced and operational convenience is improved.
Patent Information
- Application Number
- CN202422919492.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing solid rocket engine slings cannot be quickly adapted to different sizes and models, resulting in high manufacturing costs, high maintenance costs and inconvenient operation.
A hook device that can slide along the I-beam is designed. Through multiple combinations of lifting distances and symmetrically arranged pin holes, the hook can be quickly adapted and used in combination with a lifting ring, a sling, a shackle and a flexible sling.
It achieves fast and reliable lifting of solid rocket engines of different sizes and models, reduces manufacturing and maintenance costs, and improves lifting efficiency.
Smart Images
Figure CN223385699U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a single-hook horizontal solid rocket engine hoist, which is used for hoisting multiple types of solid rocket engines and belongs to the technical field of aerospace engineering. Background Art
[0002] In the field of aerospace engineering, single-hook horizontal hoists for solid rocket engines are generally composed of a lifting beam assembly and a flexible lifting belt, and are used for lifting, translating, and parking the engine. In actual lifting operations, because different types of solid rocket engines have different lifting positions and require vertical and stable lifting, one type of hoist is generally only used to lift one corresponding type of solid rocket engine. When faced with solid rocket engines of different sizes or models, this method often requires preparing hoists of multiple specifications, which not only increases manufacturing and maintenance costs, but also requires repeated replacement and debugging of the hoist, which brings inconvenience to the actual operation process. Therefore, it is necessary to design a solid rocket engine hoist that can adapt to engines of different sizes, is simple and quick to operate, and meets design specifications, so as to effectively improve the efficiency of engine lifting. Summary of the Invention
[0003] In view of the limitations of existing slings, the utility model aims to provide a solid rocket engine sling. Its core innovation lies in the design of a hook device that can slide along the I-beam lifting beam, which can effectively solve the problem that traditional slings cannot quickly adapt to solid rocket engines of different sizes and models, and greatly reduce manufacturing, use and maintenance costs.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A solid rocket motor sling, comprising:
[0006] A hanging beam, wherein the hanging beam is an I-beam, and pin holes are opened on the web of the I-beam, the pin holes including a first pin hole near the upper flange and a second pin hole near the lower flange, and the two second pin holes form a combination, and the two second pin holes in the same combination constitute a lifting distance. The hanging beam has multiple combinations of different lifting distances, and the two second pin holes in different combinations are symmetrically arranged about the midpoint of the length direction of the hanging beam;
[0007] A lifting ring, the lifting ring being located on one side of the upper flange of the lifting beam;
[0008] Shackles, two of which are mounted on the first pin hole of the hanging beam;
[0009] Slings, wherein the first ends of two slings of the same length are connected to the lifting ring, and the second ends of the two slings extend toward the left and right ends of the lifting beam respectively and are connected to the shackles;
[0010] The hook comprises a first hook and a second hook that are mirror-symmetrical, with a groove and two through-holes symmetrically distributed about the groove above the first hook and the second hook, wherein the inner wall profile of the groove matches the outer shape of the lower flange of the hanging beam, so that the hook fits on the lower flange of the hanging beam through the groove, and the hook is mounted on the hanging beam by a bolt that passes through the two through-holes and the second pin hole on the hanging beam;
[0011] A flexible sling, wherein two ends of the flexible sling are respectively inserted into the first hook and the second hook of the hook.
[0012] As an option, the lifting ring is a rounded rectangular lifting ring, and includes a mother lifting ring and a child lifting ring. The size of the mother lifting ring is larger than that of the child lifting ring. Two child lifting rings are connected to one mother lifting ring, and the two child lifting rings are respectively connected to two lifting ropes.
[0013] As an option, the shackle is a D-type shackle.
[0014] As an option, a locking device is installed on the first hook and the second hook of the hook.
[0015] As an option, the hook is mounted on the hanging beam via a bolt which passes through the two through holes and the second pin hole on the hanging beam and is provided with an anti-dropping locking pin.
[0016] As an option, anti-drop bolts are installed at both ends of the suspension beam in the length direction.
[0017] Compared with the existing technology, the solid rocket engine hoist provided by the utility model meets the design specifications, has reliable hoisting performance, is easy to use and maintain, has mature manufacturing technology, and has low production cost. It is a reliable and easy-to-use lifting device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a simplified structural diagram of the solid rocket engine sling involved in the present utility model;
[0019] Figure 2 This is a schematic diagram of the load-bearing structure of the hanging beam;
[0020] Figure 3 This is the hook parts drawing;
[0021] Figure 4 This is the parts drawing of the hanging beam;
[0022] Figure 5 This is a schematic diagram of the lifting device;
[0023] In the figure: 1—lifting ring; 2—lifting rope; 3—shackle; 4—lifting hook; 5—lifting beam; 6—flexible lifting belt; 7—solid rocket engine. DETAILED DESCRIPTION
[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to common technical knowledge and customary means in the field are included in the scope of the present invention.
[0025] like Figures 1 to 5 As shown, the solid rocket engine sling designed for the present invention is mainly composed of a lifting ring 1, a sling 2, a shackle 3, a hook 4, a lifting beam 5 and a flexible sling 6. The structural diagram is shown in FIG. Figure 1 As shown, the load-bearing structure of the hanging beam 5 is as follows Figure 2 shown.
[0026] Among them, the lifting beam 5 is an I-beam, and pin holes are opened on the web of the I-beam. The pin holes include a first pin hole close to the upper flange and a second pin hole close to the lower flange, and the two second pin holes form a combination. The two second pin holes in the same combination constitute a lifting distance. Figure 1 There are two combinations of different lifting distances on the middle lifting beam 5. The two second pin holes in the different combinations are symmetrically arranged about the midpoint of the length direction of the lifting beam 5. The lifting ring 1 is located on one side of the upper flange of the lifting beam 5, including a mother lifting ring and two child lifting rings. Two D-type shackles 3 are installed at the first pin hole on the lifting beam 5. The first ends of two slings 2 of the same length are connected to the child lifting rings, and the second ends of the two slings 2 extend toward the left and right ends of the lifting beam 2 respectively and are connected to the shackles 3. Figure 2 and Figure 3 The hook 4 includes a first hook and a second hook that are mirror-symmetrical. There is a groove and two through holes symmetrically distributed about the groove above the first hook and the second hook, wherein the inner wall contour of the groove matches the outer shape of the lower flange of the beam 5, so that the hook 4 fits on the lower flange of the beam 5 through the groove. The hook 4 is installed on the beam 5 by a bolt passing through the two through holes and the second pin hole on the beam 5; the two ends of the flexible sling 6 are respectively inserted into the first hook and the second hook of the hook 4, and the first hook and the second hook are both equipped with a locking device.
[0027] When assembling the sling, install the sling 2 according to the wire rope fastening method and size in QJ2904-1997 Solid Rocket Engine Sling Design Specification, connect the lifting ring 1, sling 2, shackle 3 (such as Figure 4 , a waist-shaped through groove is opened on the upper flange of the lifting beam 5 for installing the shackle 3. The size of the waist-shaped through groove must meet the requirements of inserting the D-type shackle 3 from top to bottom and allowing the shackle 3 to rotate flexibly. If the size is too short, the shackle 3 will not be able to be consistent with the direction of the sling 2). After the beam 5 is lifted, the hook 4 is symmetrically installed in the corresponding model identification hole position of the lifting beam 5 according to the model requirements (different models of solid rocket engines 7 correspond to the two second pin holes with different lifting distances on the lifting beam 5), and then the anti-drop bolt at the end of the lifting beam 5 is installed (such as Figure 1 As shown, there is an anti-drop bolt on the web of the lifting beam 5 at the corresponding left and right ends near the lower flange, which serves as a safety to prevent the hook 4 from falling off). Finally, the locking device of the hook 4 is opened and the flexible sling 6 is hung.
[0028] During operation, the rectangular mother lifting ring is lifted by the crane, the lifting rope is straightened through the sub-lifting ring and D-type shackle 3, and the lifting beam 5 is connected. The hook 4 is subjected to force by enveloping the bottom flange of the I-beam of the lifting beam 5 through the groove. The bolt assembly of the hook 4 can ensure that the hook does not slide horizontally. After the hook 4 is fixed, it is hung into the flexible sling 6. The flexible sling 6 covers the solid rocket engine 7 and specifies the lifting point to complete the lifting.
[0029] Wherein the hook 4 and the beam 5 are as follows Figure 3 and Figure 4 As shown, according to the dimension drawing, general machining, heat treatment and other methods can be used for processing. The lifting ring 1, sling 2, shackle 3 and flexible sling 6 are standard parts commonly used on the market and can be purchased. After the above-mentioned parts are prepared, the production of the lifting device can be completed through assembly and marking processes. The design of the sling of the utility model complies with the specifications, has reliable lifting performance, is easy to use and maintain, and has low manufacturing cost. It can meet the lifting requirements of solid rocket engines of different specifications. It only needs to install the hook 4 into the pin holes of different hole spacing on the lifting beam 5. The use of this sling can quickly and reliably complete the lifting of multiple models of solid rocket engines 7.
[0030] Before using the sling to lift different types of solid rocket engines 7, after correctly assembling the solid rocket engine 7 according to its specifications and dimensions, hook the crane hook into the lifting ring 1, raise the sling height for inspection, and continue to use it after inspection; symmetrically adjust the hook 4 to the corresponding solid rocket engine 7 model identification hole position, tighten the bolts and nuts, and insert the locking pin; adjust the crane so that the flexible sling 6 vertically envelops the solid rocket engine 7 at the specified lifting position, and then lift the solid rocket engine 7 vertically; the lifting method and lifting safety regulations shall be implemented in accordance with the relevant provisions of GJB3389, such as Figure 5 shown.
[0031] The above is the structure of the present invention. The sling design of the present invention complies with the standard, has reliable lifting performance, is easy to use and maintain, has mature manufacturing technology, and is low in cost. It is a reliable and easy-to-use lifting device. All such devices manufactured according to this structural scheme are within the scope of protection of the present invention.
Claims
1. A solid rocket engine sling, characterized in that: include: A hanging beam (5), wherein the hanging beam (5) is an I-beam, and pin holes are opened on the web of the I-beam, the pin holes include a first pin hole close to the upper flange and a second pin hole close to the lower flange, and the two second pin holes form a combination, and the two second pin holes in the same combination constitute a lifting distance, and the hanging beam (5) has a plurality of combinations with different lifting distances, and the two second pin holes in different combinations are symmetrically arranged about the midpoint position of the length direction of the hanging beam (5); A lifting ring (1), the lifting ring (1) being located on one side of the upper flange of the lifting beam (5); Shackles (3), two of the shackles (3) are mounted on the first pin hole of the hanging beam (5); Slings (2), wherein the first ends of two slings (2) of the same length are connected to the lifting ring (1), and the second ends of the two slings (2) extend toward the left and right ends of the lifting beam (5) respectively and are connected to the shackles (3); A hook (4), wherein the hook (4) comprises a first hook and a second hook that are mirror-symmetrical, wherein a groove and two through holes symmetrically distributed about the groove are provided above the first hook and the second hook, wherein the inner wall profile of the groove matches the outer shape of the lower flange of the hanging beam (5), so that the hook (4) fits on the lower flange of the hanging beam (5) through the groove, and the hook (4) is mounted on the hanging beam (5) by a bolt that passes through the two through holes and the second pin hole on the hanging beam (5); A flexible sling (6), wherein two ends of the flexible sling (6) are respectively inserted into the first hook and the second hook of the hook (4).
2. A solid rocket engine sling according to claim 1, characterized in that: The lifting ring (1) is a rounded rectangular lifting ring and comprises a mother lifting ring and a child lifting ring. The size of the mother lifting ring is larger than that of the child lifting ring. Two child lifting rings are sleeved on one mother lifting ring, and the two child lifting rings are respectively connected to two slings (2).
3. The solid rocket engine sling according to claim 1, characterized in that: The shackle (3) is a D-type shackle.
4. A solid rocket motor sling according to claim 1, characterized in that: The first hook and the second hook of the hook (4) are equipped with locking devices.
5. The solid rocket motor sling according to claim 1, characterized in that: The hook (4) is mounted on the hanging beam (5) via a bolt that penetrates the two through holes and the second pin hole on the hanging beam (5) and is provided with an anti-dropping locking pin.
6. The solid rocket motor sling according to claim 1, characterized in that: Anti-slip bolts are installed at both ends of the hanging beam (5) in the length direction.