A diaphragm clamping device and method

Abstract

This invention discloses a diaphragm clamping device and method. The clamping device includes an outer spline sleeve and an inner spline sleeve. The outer spline sleeve includes a rotating tube mounted on the outer wall of a high-pressure vessel. A plurality of external toothed platforms are arranged annularly on the outer wall of the rotating tube near the launch tube. The inner spline sleeve includes a fixed tube. The inner wall of the fixed tube has a first mounting surface and a second mounting surface. The first mounting surface is mounted on the outer wall of the launch tube, and one end of the second mounting surface extends to the outer side of the rotating tube and is annularly arranged with a plurality of internal toothed platforms. The internal toothed platforms are offset from the external toothed platforms. By passing the external toothed platforms through the internal toothed platforms and inserting them into the inner side of the second mounting surface, and then rotating the rotating tube, the external toothed platforms and the internal toothed platforms are aligned on the same axis and overlap, thus clamping the outer spline sleeve and the inner spline sleeve together, thereby completing the rapid clamping of the diaphragm. Furthermore, during the insertion and rotation process, the rotating tube ensures uniform force on the diaphragm end face, improving sealing performance.

Description

Technical Field

[0001] This invention relates to a diaphragm clamping device and method, specifically a diaphragm clamping device and method applicable to gunpowder-driven and non-gunpowder-driven light gas guns, belonging to the technical field of ultra-high-speed impact test devices. Background Technology

[0002] Currently, diaphragm clamping devices generally use flange connections. A certain number of screws are set on the axial end face of the high-pressure vessel, and a flange is set at the end of the launch tube to connect the screws. When installing the diaphragm, the diaphragm is installed on the axial end face of the high-pressure vessel. Then, while the launch tube is moved close to the diaphragm, the screws pass through the corresponding through holes on the flange. After the launch tube is close to the diaphragm, flat spring washers are sequentially fitted on each screw and tightened with nuts to complete the connection between the high-pressure vessel and the launch tube and the clamping of the diaphragm.

[0003] However, this connection requires the cooperation of multiple screws and nuts. In order to ensure that the diaphragm end face is properly sealed, it is necessary to ensure that each screw is subjected to the same force. If the force on one screw is inconsistent with that on the other screws, it is easy to cause problems with the sealing of the diaphragm end face, resulting in gas leakage when the high-pressure vessel is filled with gas.

[0004] In view of this, the present invention provides a diaphragm clamping device and method. Summary of the Invention

[0005] The purpose of this invention is to provide a diaphragm clamping device and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A diaphragm clamping device for connecting a high-pressure vessel and a launch tube, and clamping a diaphragm between the opposing surfaces of the high-pressure vessel and the launch tube, comprising:

[0008] An external spline sleeve, the external spline sleeve including a rotating tube, the rotating tube being installed on the outer tube wall of the high-pressure vessel, and a plurality of external toothed platforms being arranged in an annular manner on the outer tube wall of the rotating tube near the end of the launching tube;

[0009] An inner spline sleeve, the inner spline sleeve including a fixed tube, the inner wall of the fixed tube is provided with a first mounting surface and a second mounting surface, so that a stepped hole is formed in the fixed tube, the first mounting surface is installed on the outer wall of the launching tube, and one end of the second mounting surface extends to the outer side of the rotating tube and is provided with a plurality of internal toothed platforms in an annular shape.

[0010] The inner toothed platform is offset from the outer toothed platform. The outer toothed platform is inserted into the inner side of the second mounting surface through the inner toothed platform, and after rotation, it overlaps with the inner toothed platform to engage and connect the outer spline sleeve and the inner spline sleeve.

[0011] The diaphragm is installed between the opposite sides of the high-pressure vessel and the transmitter tube via an encapsulation assembly.

[0012] Optionally, both the high-pressure container and the launching tube are provided with T-shaped supports at their bottom ends, and a screw jack is provided on the T-shaped support at the bottom end of the high-pressure container. The screw jack is used to drive the outer spline sleeve to rotate.

[0013] The screw jack includes:

[0014] A bracket, which is mounted on the top of the T-shaped support;

[0015] A nut seat, which is obliquely mounted on one side of the bracket;

[0016] A lead screw is installed inside the nut seat, with both ends of the lead screw extending to the outside of the nut seat. A hinge seat is installed at one end of the lead screw near the high-pressure vessel, and the other end of the hinge seat is installed on the outer wall of the rotating tube.

[0017] Optionally, the encapsulation component includes:

[0018] A plurality of fixed posts, one end of each of the fixed posts being respectively installed on the end face of the high-pressure vessel near the launching tube;

[0019] An elastic washer, wherein a plurality of first lifting lugs are provided on the outer side wall of the elastic washer;

[0020] A clamping ring, wherein a plurality of second lifting lugs are provided on the outer side wall of the clamping ring;

[0021] One end of the diaphragm is provided with a plurality of through holes, and the number and position of the plurality of through holes, the first lug and the second lug correspond to the fixing post respectively;

[0022] The first lifting lug, the through hole, and the second lifting lug are sequentially fitted onto the outer surface of the fixed column, and the elastic washer is pressed against the end face of the high-pressure vessel.

[0023] Optionally, when the diaphragm is in an unclamped state, the length of the fixing post is less than the sum of the thicknesses of the elastic washer, the diaphragm, and the clamping ring;

[0024] When the diaphragm is in the clamped state, the length of the fixing post is equal to the sum of the thicknesses of the elastic washer, the diaphragm, and the clamping ring.

[0025] Optionally, a countersunk groove is provided between the opposing surfaces of the high-pressure vessel and the launching tube, and the encapsulation assembly is embedded in the countersunk groove;

[0026] When the diaphragm is not clamped, the sum of the thicknesses of the elastic washer, the diaphragm, and the clamping ring is greater than the depth of the countersunk groove.

[0027] Optionally, the ends of the high-pressure vessel and the launching tube are respectively provided with flanges on opposite sides, and the flanges are used for positioning and installing the outer spline sleeve and the inner spline sleeve.

[0028] Optionally, the elastic washer and the clamping ring have the same structural size, and the inner wall of the elastic washer is flush with the inner tube wall of the high-pressure vessel, so that the pressing part of the diaphragm is located outside the inner tube wall of the high-pressure vessel.

[0029] Optionally, the hinge seat includes a U-shaped frame and a connecting plate. One end of the connecting plate is mounted on the inner side of the U-shaped frame via a pin, and the other end of the connecting plate is mounted horizontally on the middle of the outer wall of the rotating tube.

[0030] A bearing is embedded on the side away from the opening end of the U-shaped frame, and the bearing is fitted onto the outer surface of the lead screw.

[0031] A diaphragm clamping method, which uses the diaphragm clamping device described above to clamp and install the diaphragm, includes the following steps:

[0032] S1. The diaphragm is installed between the opposite surfaces of the high-pressure vessel and the transmitting tube using an encapsulation assembly;

[0033] S2. Insert the outer spline sleeve into the inner spline sleeve, so that the outer gear platform passes through the inner gear platform and is inserted into the inner side of the second mounting surface;

[0034] S3. Rotate the outer spline sleeve so that the outer toothed platform and the inner toothed platform overlap each other, and engage the outer spline sleeve and the inner spline sleeve to clamp the diaphragm between the opposite surfaces of the high-pressure vessel and the transmitting tube.

[0035] Optionally, the method of mounting the diaphragm between the opposing surfaces of the high-pressure vessel and the transmitter tube via an encapsulation assembly includes:

[0036] The first lug on the elastic washer, the through hole on the diaphragm, and the second lug on the clamping ring are sequentially fitted onto the outer surface of the plurality of fixed columns, and the elastic washer is pressed against the end face of the high-pressure vessel.

[0037] The beneficial effects of this invention include:

[0038] 1) The diaphragm clamping device provided by the present invention, by passing the outer toothed platform through the inner toothed platform and inserting it into the inner side of the second mounting surface, and then rotating the rotating tube so that the outer toothed platform and the inner toothed platform are on the same axis and coincide with each other, the outer spline sleeve and the inner spline sleeve are engaged together, thereby completing the rapid clamping of the diaphragm; and, during the insertion and rotation process, the rotating tube can ensure that the end face of the diaphragm is subjected to uniform force and improve the sealing performance.

[0039] 2) The diaphragm clamping device provided by the present invention, by setting an elastic washer, a clamping ring, a fixing column, a first lifting lug, a second lifting lug, and opening corresponding through holes on the diaphragm, can quickly and accurately position and install the diaphragm; at the same time, after the diaphragm is clamped, the elastic washer can provide a certain tension force to the diaphragm, further improving the sealing performance. Attached Figure Description

[0040] Figure 1 This is a perspective view of a diaphragm clamping device according to the present invention;

[0041] Figure 2 In this invention Figure 1 Sectional view at point AA;

[0042] Figure 3 In this invention Figure 1 Enlarged view of point B;

[0043] Figure 4 In this invention Figure 1 A schematic diagram of the rotating tube;

[0044] Figure 5 In this invention Figure 1 A schematic diagram of the structure of the fixed tube;

[0045] Figure 6 In this invention Figure 1 Exploded view of the high-pressure vessel, encapsulation components, and diaphragm;

[0046] In the diagram: 1. Rotating tube; 2. External gear platform; 3. Fixed tube; 4. First mounting surface; 5. Second mounting surface; 6. Internal gear platform; 7. High-pressure vessel; 8. Launch tube; 9. T-shaped support; 10. Bracket; 11. Nut seat; 12. Lead screw; 13. U-shaped frame; 14. Connecting plate; 15. Bearing; 16. Elastic washer; 17. First lifting lug; 18. Pressure ring; 19. Second lifting lug; 20. Through hole; 21. Countersunk groove; 22. Flange; 23. Handle; 24. Fixed column; 25. Diaphragm. Detailed Implementation

[0047] The present invention will now be described in detail with reference to the embodiments, but the present invention is not limited to these embodiments.

[0048] Example 1:

[0049] like Figures 1-6 As shown, the present invention provides a diaphragm clamping device for connecting a high-pressure container 7 and a transmitting tube 8, and clamping a diaphragm 25 between the opposing surfaces of the high-pressure container 7 and the transmitting tube 8, comprising:

[0050] The outer spline sleeve includes a rotating tube 1, which is sleeved on the outer tube wall of the high-pressure vessel 7. Several external toothed platforms 2 are arranged in an annular shape on the outer tube wall of the rotating tube 1 near the end of the launch tube 8.

[0051] The inner spline sleeve includes a fixed tube 3. The inner wall of the fixed tube 3 is provided with a first mounting surface 4 and a second mounting surface 5. The diameter of the first mounting surface 4 is smaller than the diameter of the second mounting surface 5, so that a stepped hole is formed inside the fixed tube 3. The first mounting surface 4 is installed on the outer wall of the launching tube 8. One end of the second mounting surface 5 extends to the outer side of the rotating tube 1 and is provided with a plurality of internal toothed platforms 6 in an annular shape.

[0052] The inner toothed platform 6 and the outer toothed platform 2 are staggered. The outer toothed platform 2 is inserted into the inner side of the second mounting surface 5 through the inner toothed platform 6 and rotates to overlap with the inner toothed platform 6, which is used to engage the outer spline sleeve and the inner spline sleeve. When clamping the diaphragm 25, the clamping device first installs the diaphragm 25 between the opposite surfaces of the high-pressure vessel 7 and the launching tube 8 through the encapsulation assembly. Then, the launching tube 8 is moved to one side of the high-pressure vessel 7 and pressed onto the encapsulation assembly. At the same time, the outer toothed platform 2 passes through the inner toothed platform 6 and is inserted into the inner side of the second mounting surface 5. Then, the rotating tube 1 is rotated so that the outer toothed platform 2 and the inner toothed platform 6 are on the same axis and overlap with each other, engaging the outer spline sleeve and the inner spline sleeve together, thereby completing the rapid clamping of the diaphragm 25. In addition, during the insertion and rotation process, the rotating tube 1 can ensure that the end face of the diaphragm 25 is subjected to uniform force, improving the sealing performance.

[0053] Furthermore, T-shaped supports 9 are welded to the bottom ends of both the high-pressure vessel 7 and the launching tube 8. A screw jack is installed on the T-shaped support 9 located at the bottom end of the high-pressure vessel 7. The screw jack is used to drive the outer spline sleeve to rotate.

[0054] The screw jack includes:

[0055] The bracket 10 is welded to the top of the T-shaped support 9. In this embodiment, in order to increase the welding surface of the bracket 10 and improve the supporting force, the bracket 10 is designed as an L-shaped structure.

[0056] Nut seat 11 is inclinedly disposed on one side of bracket 10 and is rotatably mounted on bracket 10 by a pin. A handle 23 is installed on the outside of nut seat 11 to facilitate auxiliary support of nut seat 11 through handle 23.

[0057] The lead screw 12 is installed inside the nut seat 11. Both ends of the lead screw 12 extend to the outside of the nut seat 11. A hinge seat is rotatably installed at one end of the lead screw 12 near the high pressure vessel 7. The other end of the hinge seat is installed on the outer wall of the rotating tube 1.

[0058] Specifically, the hinged seat includes a U-shaped frame 13 and a connecting plate 14. One end of the connecting plate 14 is installed on the inner side of the U-shaped frame 13 via a pin, and the other end of the connecting plate 14 is welded horizontally to the middle of the outer wall of the rotating tube 1. A bearing 15 is embedded on the side away from the opening end of the U-shaped frame 13, and the bearing 15 is fitted on the outer surface of the lead screw 12. During use, when the outer toothed platform 2 passes through the inner toothed platform 6 and is inserted into the inner side of the second mounting surface 5, the lead screw 12 is rotated, causing the lead screw 12 to rotate out in the nut seat 11 in an inclined direction, and pushing the U-shaped frame 13 towards one side of the rotating ring. This causes the U-shaped frame 13 to drive the rotating ring to rotate along the outer side of the high-pressure vessel 7 through the connecting plate 14, rotating the outer toothed platform 2 and the inner toothed platform 6 to the same axis, making them coincide with each other, thereby completing the engagement connection between the outer spline sleeve and the inner spline sleeve.

[0059] Furthermore, the encapsulated components include:

[0060] Several fixing posts 24 are provided, one end of which is welded to the end face of the high-pressure vessel 7 near the launching tube 8.

[0061] The elastic washer 16 has several first lifting lugs 17 integrally formed on its outer side wall by a casting process.

[0062] A clamping ring 18, on the outer side wall of which are welded several second lifting lugs 19;

[0063] One end of the diaphragm 25 has several through holes 20, and the number and position of the several through holes 20, the first lug 17 and the second lug 19 correspond to the fixed post 24 respectively.

[0064] Specifically, when installing the diaphragm 25, the first lifting lug 17, the through hole 20, and the second lifting lug 19 are sequentially fitted onto the outer surface of the fixing column 24, and the elastic washer 16 is pressed onto the end face of the high-pressure vessel 7 to facilitate the positioning and installation of the diaphragm 25.

[0065] Furthermore, when the diaphragm 25 is not clamped, the length of the fixing post 24 is less than the sum of the thicknesses of the elastic washer 16, the diaphragm 25 and the clamping ring 18, which makes it easier to squeeze the elastic washer 16 to deform, so that the elastic washer 16 can provide a certain tension force to the diaphragm 25, further improving the sealing performance.

[0066] When the diaphragm 25 is in the clamped state, the length of the fixing post 24 is equal to the sum of the thicknesses of the elastic washer 16, the diaphragm 25 and the clamping ring 18, so that after the diaphragm 25 is clamped, the fixing post 24 is abutted against the end of the transmitting tube 8, preventing the fixing post 24 from being deformed by force.

[0067] Furthermore, a countersunk groove 21 is provided between the opposing surfaces of the high-pressure container 7 and the launching tube 8, and the encapsulation component is embedded and installed in the countersunk groove 21; a soft seal can be achieved through the diaphragm 25, the elastic washer 16 and the clamping ring 18, and a hard seal can be achieved through the direct contact between the high-pressure container 7 and the launching tube 8, thereby achieving a dual sealing effect of soft and hard seal; at the same time, when the diaphragm 25 is in an unclamped state, the sum of the thicknesses of the elastic washer 16, the diaphragm 25 and the clamping ring 18 is greater than the depth of the countersunk groove 21, so that after the elastic washer 16 is squeezed, the diaphragm 25 is further clamped.

[0068] Furthermore, flanges 22 are respectively provided on opposite sides of the ends of the high-pressure vessel 7 and the launching tube 8. The flanges 22 are used for positioning and installing the outer spline sleeve and the inner spline sleeve.

[0069] Furthermore, the elastic washer 16 and the clamping ring 18 have the same size and structure. The inner wall of the elastic washer 16 is flush with the inner tube wall of the high-pressure vessel 7, so that the crimping part of the diaphragm 25 is located outside the inner tube wall of the high-pressure vessel 7, thus avoiding obstruction of the high-pressure airflow generated by the high-pressure vessel 7.

[0070] It should be noted that in this embodiment, the hardness of the clamping ring 18 is greater than that of the elastic washer 16, which can ensure that the elastic washer 16 is deformed during installation. The clamping ring 18 can be made of aluminum.

[0071] Example 2:

[0072] The present invention also provides a diaphragm clamping method, which uses the above-mentioned diaphragm clamping device to clamp and install the diaphragm 25, including the following steps:

[0073] Step 1: Install the diaphragm 25 between the opposite sides of the high-pressure container 7 and the transmitter tube 8 using the encapsulation assembly;

[0074] Step 2: Insert the outer spline sleeve into the inner spline sleeve, so that the outer gear platform 2 passes through the inner gear platform 6 and is inserted into the inner side of the second mounting surface 5.

[0075] Step 3: Rotate the outer spline sleeve so that the outer toothed platform 2 and the inner toothed platform 6 overlap, and engage the outer spline sleeve and the inner spline sleeve to clamp the diaphragm 25 between the opposite surfaces of the high-pressure vessel 7 and the transmitter tube 8.

[0076] Optionally, in step one, the method of mounting the diaphragm 25 between the opposing surfaces of the high-pressure vessel 7 and the emitter 8 via an encapsulation assembly specifically includes:

[0077] The first lug 17 on the elastic washer 16, the through hole 20 on the diaphragm 25 and the second lug 19 on the clamping ring 18 are sequentially fitted onto the outer surface of a plurality of fixed posts 24, and the elastic washer 16 is pressed onto the end face of the high pressure vessel 7.

[0078] It should be noted that the T-shaped support 9 in this embodiment is used to support the high-pressure container 7 and the launch tube 8 respectively, and an arc-shaped groove is provided at the top of the T-shaped support 9.

[0079] The above description is merely a few embodiments of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any modifications or alterations made by those skilled in the art without departing from the scope of the technical solution of the present invention using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A diaphragm clamping device for connecting a high-pressure vessel (7) and a transmitter tube (8), and clamping a diaphragm (25) between the opposing surfaces of the high-pressure vessel (7) and the transmitter tube (8), characterized in that, include: The outer spline sleeve includes a rotating tube (1), which is installed on the outer tube wall of the high-pressure vessel (7). The outer tube wall of the rotating tube (1) is provided with a plurality of external toothed platforms (2) at one end near the launch tube (8). The inner spline sleeve includes a fixed tube (3), the inner wall of the fixed tube (3) is provided with a first mounting surface (4) and a second mounting surface (5), so that a stepped hole is formed in the fixed tube (3). The first mounting surface (4) is installed on the outer wall of the launching tube (8), and one end of the second mounting surface (5) extends to the outer side of the rotating tube (1) and is provided with a plurality of internal toothed platforms (6). The inner toothed platform (6) is offset from the outer toothed platform (2). The outer toothed platform (2) is inserted into the inner side of the second mounting surface (5) through the inner toothed platform (6) and rotates to overlap with the inner toothed platform (6) to engage the outer spline sleeve and the inner spline sleeve, thereby completing the clamping action of the diaphragm (25). The diaphragm (25) is mounted between the opposing surfaces of the high-pressure vessel (7) and the transmitter (8) via an encapsulation assembly; the encapsulation assembly includes: A plurality of fixed posts (24), one end of each of the fixed posts (24) is respectively installed on the end face of the high pressure vessel (7) near the launching tube (8); An elastic washer (16) is provided with a plurality of first lifting lugs (17) on its outer side wall. A clamping ring (18) is provided with a plurality of second lifting lugs (19) on its outer side wall; One end of the diaphragm (25) is provided with a plurality of through holes (20), and the number and position of the plurality of through holes (20), the first lug (17) and the second lug (19) correspond to the fixed post (24); The first lifting lug (17), the through hole (20) and the second lifting lug (19) are sequentially fitted onto the outer surface of the fixed column (24), and the elastic washer (16) is pressed against the end face of the high pressure vessel (7); When the diaphragm (25) is in an unclamped state, the length of the fixing post (24) is less than the sum of the thicknesses of the elastic washer (16), the diaphragm (25), and the clamping ring (18); When the diaphragm (25) is in the clamped state, the length of the fixing post (24) is equal to the sum of the thicknesses of the elastic washer (16), the diaphragm (25), and the clamping ring (18).

2. The diaphragm clamping device according to claim 1, characterized in that: Both the high-pressure container (7) and the launching tube (8) are provided with T-shaped supports (9) at their bottom ends. A screw jack is provided on the T-shaped support (9) at the bottom end of the high-pressure container (7). The screw jack is used to drive the outer spline sleeve to rotate. The screw jack includes: A bracket (10) is mounted on the top of the T-shaped support (9); Nut seat (11), the nut seat (11) is obliquely installed on one side of the bracket (10); A lead screw (12) is installed inside the nut seat (11). Both ends of the lead screw (12) extend to the outside of the nut seat (11). A hinge seat is installed at one end of the lead screw (12) near the high pressure vessel (7). The other end of the hinge seat is installed on the outer wall of the rotating tube (1).

3. The diaphragm clamping device according to claim 1, characterized in that: A countersunk groove (21) is provided between the opposite surfaces of the high-pressure container (7) and the launching tube (8), and the encapsulation assembly is embedded in the countersunk groove (21); When the diaphragm (25) is not clamped, the sum of the thicknesses of the elastic washer (16), the diaphragm (25) and the clamping ring (18) is greater than the depth of the countersunk groove (21).

4. The diaphragm clamping device according to claim 1, characterized in that: The ends of the high-pressure vessel (7) and the launching tube (8) are respectively provided with flanges (22) on opposite sides. The flanges (22) are used to position and install the outer spline sleeve and the inner spline sleeve.

5. A diaphragm clamping device according to claim 1, characterized in that: The elastic washer (16) and the compression ring (18) have the same size. The inner wall of the elastic washer (16) is flush with the inner tube wall of the high pressure vessel (7), so that the crimping part of the diaphragm (25) is located outside the inner tube wall of the high pressure vessel (7).

6. A diaphragm clamping device according to claim 2, characterized in that: The hinge seat includes a U-shaped frame (13) and a connecting plate (14). One end of the connecting plate (14) is installed on the inner side of the U-shaped frame (13) by a pin, and the other end of the connecting plate (14) is installed in the middle of the outer wall of the rotating tube (1) in the horizontal direction. A bearing (15) is embedded on the side away from the opening end of the U-shaped frame (13), and the bearing (15) is fitted on the outer surface of the lead screw (12).

7. A diaphragm clamping method, comprising clamping and installing the diaphragm (25) using a diaphragm clamping device according to any one of claims 1-6, characterized in that, Includes the following steps: S1. The diaphragm (25) is installed between the opposite surfaces of the high-pressure container (7) and the launching tube (8) through the encapsulation assembly; wherein the first lug (17) on the elastic washer (16), the through hole (20) on the diaphragm (25) and the second lug (19) on the clamping ring (18) are sequentially sleeved on the outer surfaces of a plurality of the fixing posts (24), and the elastic washer (16) is pressed against the end face of the high-pressure container (7); S2. Insert the outer spline sleeve into the inner spline sleeve, so that the outer tooth platform (2) passes through the inner tooth platform (6) and is inserted into the inner side of the second mounting surface (5); S3. Rotate the outer spline sleeve so that the outer toothed platform (2) and the inner toothed platform (6) overlap each other, and engage the outer spline sleeve and the inner spline sleeve to clamp the diaphragm (25) between the opposite surfaces of the high-pressure container (7) and the transmitter tube (8).

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