Supporting structure for bottom of storage tank

Abstract

The utility model provides a supporting structure for the bottom of a storage box. The supporting structure comprises a supporting device. The supporting device provides power through a driving device so that the end face of one end of the supporting device can be tightly attached to the inner wall of the bottom of the thin-wall storage box. An elastic supporting strip is arranged on the end face of the end, used for being tightly attached to the inner wall of the bottom of the thin-wall storage box, of the supporting device, one side of the elastic supporting strip is tightly attached to the supporting device, the other side of the elastic supporting strip is tightly attached to the inner wall of the bottom of the thin-wall storage box, and therefore the friction force between the supporting device and the inner wall of the bottom of the thin-wall storage box is increased. The supporting structure can prevent the thin-wall box bottom piece from moving up and down, the clamping efficiency is improved, and follow-up machining of the rocket storage box is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of rocket tanks, in particular to a supporting structure for a tank bottom. Background Art

[0002] With the rapid development of the aerospace industry, various technologies involved in the rocket field have also achieved rapid progress.

[0003] The thin-walled aluminum alloy bottom of a rocket tank has a semi-ellipsoidal profile, with a maximum diameter of approximately 3350mm and a maximum wall thickness of less than 25mm. This thin-walled bottom is typically welded together, and deformation during the welding process can cause the part surface to deviate from the theoretical profile, making subsequent clamping and processing more difficult.

[0004] Existing clamping fixtures typically utilize multiple contoured support blocks that move radially from the inside out, forcing local deformation of the thin-walled box bottom to achieve clamping. Furthermore, these fixtures rely on manual adjustment, and the independent movement of the contoured support blocks can cause the thin-walled box bottom to move upward during tensioning. This can alter the flatness of the rear end of the clamping process, necessitating an additional external clamping mechanism to readjust the thin-walled box bottom. Consequently, this thin-walled box clamping method increases the time required to clamp the bottom, reducing production efficiency.

[0005] There is an urgent need to provide a support structure for the bottom of the tank with a reasonable design that can prevent the thin-walled bottom parts from moving up and down, improve the clamping efficiency, and facilitate the subsequent processing of the entire rocket tank. Summary of the Invention

[0006] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a support structure for the bottom of the tank, which can prevent the thin-walled bottom parts from moving up and down during the clamping process, improve the clamping efficiency, and facilitate the subsequent processing of the rocket tank.

[0007] The utility model provides a support structure for the bottom of a storage tank, comprising a support device, wherein the support device is powered by a driving device so that one end surface of the support device is in close contact with the inner wall of the bottom of the thin-walled storage tank, and the end surface of the support device used for close contact with the inner wall of the bottom of the thin-walled storage tank is provided with an elastic support strip, one side of the elastic support strip is in close contact with the support device, and the other side is used for close contact with the inner wall of the bottom of the thin-walled storage tank, thereby increasing the friction between the support device and the inner wall of the bottom of the thin-walled storage tank.

[0008] Furthermore, the support device has a roughly trapezoidal shape, the large-area end of the support device is used to support the inner wall of the bottom of the thin-walled tank, and the large-area end of the support device is provided with a curved surface matching the inner wall of the bottom of the thin-walled tank.

[0009] Furthermore, the large-area end of the support device is also provided with a fixing groove for matching the elastic support strip; the fixing groove and the elastic support strip are arranged in a one-to-one correspondence, the elastic support strip is connected to the inner wall of the fixing groove by an adhesive, and the elastic support strip extends from the fixing groove.

[0010] Furthermore, the support device is also provided with weight-reducing holes, which are arranged on the large side surface adjacent to the large-area end of the support device and pass through the large side surfaces on both sides; wherein the number of the weight-reducing holes is A, wherein 1≤A≤4.

[0011] Furthermore, the supporting device is also included, and the small-area end of the supporting device is further provided with a guide groove for connecting with the driving device to adjust the axial displacement of the driving device.

[0012] Furthermore, a slider is provided at the lower end of the support device, the upper end of the slider is connected to the bottom of the support device, and the lower end of the slider is in contact with a fixed base for supporting the support device.

[0013] Furthermore, the elastic support strip has a rectangular shape.

[0014] Furthermore, an end surface of the elastic support strip close to the inner wall of the bottom of the thin-walled storage tank is an inwardly concave surface.

[0015] Furthermore, the elastic support strip is made of any one of polyethylene, rubber and nylon.

[0016] Furthermore, it also includes a fine-tuning device; the fine-tuning device includes a connecting block, a fine-motion screw and a handwheel, wherein one end of the connecting block is connected to the supporting device, and the other end cooperates with the fine-motion screw thread, and the end of the fine-motion screw away from the connecting block is fixedly connected to the handwheel, and the fine-motion screw is driven to rotate by rotating the handwheel, thereby driving the supporting device to move along the axial direction of the fine-motion screw, thereby completing the fine-tuning of the supporting device.

[0017] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0018] An embodiment of the present invention provides a support structure for a tank bottom. By providing an elastic support strip on the end surface of one end of the support device in close contact with the inner wall of the thin-walled tank bottom, the friction between the support device and the inner wall of the thin-walled tank bottom can be increased, thereby preventing the thin-walled tank bottom from moving up and down when subjected to force, thereby avoiding multiple clamping of the thin-walled tank bottom and improving work efficiency.

[0019] The support structure of the present application can avoid damage of the support device and the inner wall of the thin-walled tank bottom due to direct contact, and ensure the integrity of the inner wall of the thin-walled tank bottom.

[0020] The support structure of the present application can significantly improve the clamping efficiency of the thin-walled tank, prevent the thin-walled tank bottom from moving up and down under stress, and facilitate subsequent processing of the rocket tank.

[0021] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and do not limit the scope of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The following drawings are part of the specification of the present application, which illustrate the exemplary embodiments of the present application, and the accompanying drawings and the description of the specification are used to illustrate the principles of the present application.

[0023] Figure 1 The structure of the supporting device and the elastic support strip in the embodiment of the present application is shown in the left view.

[0024] Figure 2 The structure of the supporting device and the elastic support strip in the embodiment of the present application is shown in the left view.

[0025] Figure 3 The structure of the supporting device and the elastic support strip in the embodiment of the present application is shown in the left view.

[0026] Figure 4 The structure of the thin-walled tank bottom in the embodiment of the present application is shown in the left view.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1 supporting device 2 thin-walled tank bottom

[0029] 3 elastic support strip 4 weight-reducing hole

[0030] 5 sliding block DETAILED DESCRIPTION

[0031] The detailed description of the various exemplary embodiments of the present application will now be described in detail, which should not be considered as a limitation of the present application, but should be understood as a more detailed description of certain aspects, characteristics and embodiments of the present application.

[0032] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments described herein without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention will be apparent to those skilled in the art. The present description and examples are intended to be illustrative only.

[0033] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the present invention provides a support structure for a tank bottom, comprising a support device 1. A drive device provides power to the support device 1, causing one end surface of the support device 1 to contact the inner wall of the thin-walled tank bottom 2. An elastic support strip 3 is provided on the end surface of the support device 1 intended for contact with the inner wall of the thin-walled tank bottom 2. One side of the elastic support strip 3 contacts the support device 1, while the other side contacts the inner wall of the thin-walled tank bottom 2, thereby increasing friction between the support device 1 and the inner wall of the thin-walled tank bottom 2.

[0034] Specifically, the present application provides a support structure for the tank bottom, which is provided with an elastic support strip on the end surface of the support device 1 that is in close contact with the inner wall of the thin-walled tank bottom 2. This can increase the friction between the support device 1 and the inner wall of the thin-walled tank bottom 2, thereby preventing the thin-walled tank bottom 2 from moving up and down when subjected to force, thereby avoiding multiple clamping of the thin-walled tank bottom 2 and improving the clamping work efficiency.

[0035] In addition, the support structure of the present application can avoid damage to the inner wall of the thin-walled tank bottom 2 caused by direct contact between the support device 1 and the inner wall of the thin-walled tank bottom 2 by making one side of the elastic support strip 3 close to the support device 1 and the other side close to the inner wall of the thin-walled tank bottom 2, thereby ensuring the integrity of the inner wall of the thin-walled tank bottom 2.

[0036] The support structure of the present application improves the clamping efficiency of the thin-walled tank, prevents the bottom 2 of the thin-walled tank from moving up and down when subjected to force, and facilitates the subsequent processing of the rocket tank.

[0037] In the same embodiment, to facilitate close contact between support device 1 and the inner wall of thin-walled tank bottom 2, support device 3 is, for example, roughly trapezoidal in shape. The large-area end of support device 3 is used to support the inner wall of the thin-walled tank bottom. The large-area end of support device 3 is provided with a curved surface that matches the inner wall of the thin-walled tank bottom.

[0038] In the same embodiment, in order to effectively fix the elastic support strip 3 and prevent the elastic support strip 3 from moving up and down, for example, the large-area end of the support device 1 is further provided with a fixing groove for matching the elastic support strip 3. The fixing grooves are provided in a one-to-one correspondence with the elastic support strips.

[0039] To ensure a tighter connection and a more secure fixation between the fixing groove and the elastic support strip 3, for example, the elastic support strip 3 is connected to the inner wall of the fixing groove using an adhesive. Furthermore, to further prevent direct contact between the support device 1 and the inner wall of the thin-walled tank bottom 2, for example, the elastic support strip 3 extends out of the fixing groove (for example, when the elastic support strip 3 is compressed to its limit, the end surface of the support device 1 outside the fixing groove just fits against the inner wall of the thin-walled tank bottom 2).

[0040] like Figure 1 、 Figure 3 and Figure 4 As shown, in order to reduce the weight of the support device 1 and facilitate the driving device to quickly push the support device 1 to move, for example, the support device 1 is further provided with a weight-reducing hole 4. The weight-reducing hole 4 is provided on the large side surface adjacent to the large-area end of the support device 1, and the weight-reducing hole 4 passes through the large side surfaces on both sides.

[0041] A large number of experiments have shown that when the number of weight-reducing holes 4 is A and 1≤A≤4 is satisfied, not only can the weight of the support device 1 be reduced, but the structural stability of the support device 1 can also be ensured, which is beneficial for the support device 1 to support the inner wall of the thin-walled tank bottom 2.

[0042] In one embodiment, in order to facilitate the cooperation between the support device 1 and the driving device and avoid lateral movement of the connection end between the driving device and the support device 1 on the surface of the support device 1, for example, the small area end of the support device 1 is also provided with a guide groove for connecting with the driving device to adjust the axial (longitudinal) displacement of the driving device.

[0043] In one embodiment, to facilitate movement of the support device 1, for example, a slider 5 is provided at the lower end of the support device 1. The upper end of the slider 5 is connected to the bottom of the support device 1, and the lower end abuts against a fixed base used to support the support device 1. To further facilitate movement of the support device 1, for example, the fixed base is provided with a slideway, and the lower portion of the slider 5 is provided with a slot that matches the slideway. The combination of the slideway and the slot not only facilitates movement of the support device 1 but also prevents the support device 1 from shifting during movement.

[0044] In one embodiment, in order to ensure the structural stability of the elastic support strip 3 , for example, the elastic support strip 3 has a rectangular parallelepiped shape.

[0045] In one embodiment, in order to increase the contact area between the elastic support strip 3 and the inner wall of the thin-walled tank bottom 2, for example, one end surface of the elastic support strip 3 close to the inner wall of the thin-walled tank bottom 2 is an inwardly concave surface.

[0046] In one embodiment, in order to ensure that the elastic support strip 3 has high elasticity and facilitate compression and expansion of the elastic support strip 3, for example, the elastic support strip 3 is made of any one of polyethylene, rubber and nylon.

[0047] In addition, to precisely adjust the support device, for example, the support structure further includes a fine-tuning device, which includes a connecting block, a fine-tuning screw, and a handwheel. One end of the connecting block is connected to the support device, and the other end engages with the fine-tuning screw through a thread. The end of the fine-tuning screw away from the connecting block is fixedly connected to the handwheel. Rotating the handwheel drives the fine-tuning screw to rotate, thereby driving the support device to move along the axial direction of the fine-tuning screw, thereby completing fine-tuning of the support device 1.

[0048] The above description is only an illustrative embodiment of the present invention. Without departing from the concept and principle of the present invention, any equivalent changes and modifications made by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A support structure for a tank bottom, wherein: The tank bottom used in the support structure is a thin-walled tank bottom, and is characterized in that it includes a support device, which is powered by a driving device so that one end face of the support device is in close contact with the inner wall of the thin-walled tank bottom; the end face of the support device used to be in close contact with the inner wall of the thin-walled tank bottom is provided with an elastic support strip, one side of the elastic support strip is in close contact with the support device, and the other side is used to be in close contact with the inner wall of the thin-walled tank bottom, thereby increasing the friction between the support device and the inner wall of the thin-walled tank bottom.

2. The support structure for the tank bottom according to claim 1, characterized in that: The support device has a roughly trapezoidal shape, and the large-area end of the support device is used to support the inner wall of the bottom of the thin-walled storage tank, and the large-area end of the support device is provided with a curved surface matching the inner wall of the bottom of the thin-walled storage tank.

3. The support structure for the tank bottom according to claim 2, characterized in that: The large-area end of the support device is also provided with a fixing groove for matching the elastic support strip; the fixing groove and the elastic support strip are arranged in a one-to-one correspondence, the elastic support strip is connected to the inner wall of the fixing groove by an adhesive, and the elastic support strip extends from the fixing groove.

4. The support structure for the tank bottom according to claim 3, characterized in that: The support device is also provided with weight-reducing holes, which are arranged on the large side surface adjacent to the large-area end of the support device and pass through the large side surface on both sides; wherein the number of the weight-reducing holes is A, wherein 1≤A≤4.

5. The support structure for the tank bottom according to claim 2, characterized in that: The driving device is also included, and the small-area end of the supporting device is further provided with a guide groove for connecting with the driving device to adjust the axial displacement of the driving device.

6. The support structure for the tank bottom according to claim 5, characterized in that: A slider is further provided at the lower end of the supporting device, the upper end of the slider is connected to the bottom of the supporting device, and the lower end of the slider is in contact with a fixed base for supporting the supporting device.

7. The support structure for the tank bottom according to claim 1, characterized in that: The elastic support strip has a rectangular shape.

8. The support structure for the tank bottom according to claim 1, characterized in that: The end surface of the elastic support strip close to the inner wall of the bottom of the thin-walled storage tank is an inwardly concave surface.

9. The support structure for the tank bottom according to claim 1, characterized in that: The elastic support strip is made of any one of polyethylene, rubber and nylon.

10. The support structure for a tank bottom according to claim 1, characterized in that: It also includes a fine-tuning device; the fine-tuning device includes a connecting block, a fine-motion screw and a handwheel, wherein one end of the connecting block is connected to the supporting device, and the other end is engaged with the fine-motion screw thread, and the end of the fine-motion screw away from the connecting block is fixedly connected to the handwheel, and the fine-motion screw is driven to rotate by rotating the handwheel, thereby driving the supporting device to move along the axial direction of the fine-motion screw, thereby completing the fine-tuning of the supporting device.

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