Centering mounting bracket for liquid level sensor in rocket storage tank

Abstract

The embodiment of the utility model provides a centering mounting bracket for a liquid level sensor in a rocket storage tank, and belongs to the field of carrier rocket storage tank liquid level sensors. The centrally-mounted support comprises a telescopic double-rod support located on the upper layer of the centrally-mounted support, and the telescopic double-rod support comprises two telescopic rods with the adjustable length. The rotatable three-rod support is located on the lower layer of the middle mounting support and comprises three rotating rods capable of rotating around the mounting holes; and the stainless steel wire tension wire clamp is positioned in the middle of the central mounting bracket. According to the centrally-installed support, by optimizing the structural form of the support, the continuous liquid level sensor can be installed on the cylinder section part away from the bottom of the storage tank, the liquid level sensor is close to the axis of the storage tank, and the centrally-installed support has high rigidity and installation convenience.

Description

Technical Field

[0001] The utility model belongs to the field of liquid level sensors in rocket tanks, in particular to a central mounting bracket for the liquid level sensor in a rocket tank. Background Art

[0002] The existing installation methods of liquid level sensors in rocket tanks mainly include two types: tank bottom mounting bracket and side wall clamp mounting bracket.

[0003] See also Figure 1 , shows a schematic structural diagram of a tank bottom mounting bracket 10 in the prior art. The tank bottom mounting bracket 10 comprises a continuous liquid level sensor 11, a tank bottom welded bracket 12, a screw-on clamp bracket 13, a clamp bracket 14, and a stainless steel wire tensioner 15. The tank bottom welded bracket 12 and the screw-on clamp bracket 13 are used to rigidly constrain the continuous liquid level sensor 11 and provide primary support. The clamp bracket 14 and the stainless steel wire tensioner 15 provide flexible support. The stainless steel wire tensioner 15 is connected to the cylindrical wall of the tank and can adapt to changes in the axial position of the continuous liquid level sensor 11 without generating any internal forces that affect the continuous liquid level sensor 11.

[0004] See also Figure 2 , shows a schematic diagram of the structure of a sidewall clamp mounting bracket 20 in the prior art. The clamp mounting bracket 20 consists of a continuous liquid level sensor 21, a barrel wall panel 22, a screwed clamp bracket 23, and a structural welded bracket 24. Three structural welded brackets 24 are located on the barrel wall panel 22. The three screwed clamp brackets 23 are screwed to the structural welded brackets 24 and clamp the continuous liquid level sensor 21. The top screwed clamp bracket 23 engages with the upper end slot of the continuous liquid level sensor 21, providing the primary constraint. The middle and lower screwed clamp brackets 23 contact the continuous liquid level sensor 21, releasing the axial constraint to accommodate axial deformation. Therefore, it is suitable for installations where the continuous liquid level sensor 21 is close to the barrel wall panel 22.

[0005] However, both of the above two main installation methods have the following disadvantages / shortcomings:

[0006] 1. The tank bottom mounting bracket is suitable for situations where the liquid level sensor needs to be installed at the front and rear bottom of the tank. Installing the liquid level sensor in the middle of the tank cylinder will cause the tank bottom welding bracket to be too long and the bracket rigidity to be reduced.

[0007] 2. The bottom mounting bracket has only one rigid constraint, requiring the installation of two layers of stainless steel wire tensioning wires. The operation process is relatively cumbersome, and installation reliability is affected by the tension of the wires, resulting in low product quality stability.

[0008] 3. The side wall clamp mounting bracket is only suitable for installations where the liquid level sensor is close to the cylinder wall. This will cause the liquid level sensor to be farther away from the tank axis. The liquid level sensor will be affected by the first-order sloshing of the tank propellant, resulting in unstable measurement parameters and certain deviations. Utility Model Content

[0009] The present utility model aims to at least partially address the aforementioned technical problems by providing a centrally mounted bracket for a liquid level sensor within a rocket tank. By optimizing the bracket's structural form, this bracket allows for mounting a continuous liquid level sensor in a cylindrical section away from the tank bottom, while maintaining the liquid level sensor relatively close to the tank axis. Furthermore, this bracket exhibits high rigidity and ease of installation.

[0010] In one aspect of the present invention, a central mounting bracket for a liquid level sensor in a rocket tank is provided, the central mounting bracket comprising:

[0011] a retractable double-rod bracket located on the upper layer of the central mounting bracket, the retractable double-rod bracket including two retractable rods with adjustable lengths;

[0012] A rotatable three-rod bracket located below the central mounting bracket, the rotatable three-rod bracket comprising three rotating rods rotatable about the mounting holes;

[0013] Stainless steel wire tensioning clamp located in the middle of the center mounting bracket.

[0014] In some embodiments, the retractable dual-rod stand comprises:

[0015] The first hoop half ring;

[0016] The double-ear half ring cooperates with the first clamp half ring to form a cavity for accommodating the liquid level sensor;

[0017] One end of each of the two telescopic rods is fixedly connected to the lug of the double-ear piece half ring.

[0018] In some embodiments, each telescopic rod includes a first double-ear piece, a left-handed threaded rod joint, a first locking nut, a first welding nut, a round tube pull rod, a second welding nut, a second locking nut and a right-handed threaded rod joint connected in sequence.

[0019] In some embodiments, the first double-ear piece is connected to the lugs of the double-ear piece half ring by bolts;

[0020] The first welding nut and the second welding nut are welded on both sides of the round tube tie rod respectively.

[0021] The first locking nut is sleeved on the first welding nut on the side of the round tube pull rod close to the liquid level sensor and screwed into the left-handed threaded rod joint, and the second locking nut is sleeved on the second welding nut on the other side of the round tube pull rod close to the cylinder wall and screwed into the right-handed threaded rod joint.

[0022] In some embodiments, the length of the tube pull rod is adjusted by rotating the tube pull rod, wherein after the length of the tube pull rod is adjusted to a preset length, the length of the tube pull rod is fixed and locked by tightening the first locking nut and the second locking nut.

[0023] In some embodiments, the rotatable three-rod bracket comprises:

[0024] The second hoop half ring;

[0025] The three-ear half ring cooperates with the second clamp half ring to form a cavity for accommodating the liquid level sensor;

[0026] One end of each of the three rotating rods is rotatably connected to the lug of the three-lug half ring.

[0027] In some embodiments, each rotating rod includes a pull rod and a second double-ear piece located on one end of the pull rod, one end of the second double-ear piece is connected to the end of the pull rod by a first bolt, and the other end of the second double-ear piece is connected to the lug on the three-ear piece half ring by a second bolt.

[0028] In some embodiments, an extending direction of the first bolt and an extending direction of the second bolt are perpendicular to each other.

[0029] In some embodiments, the liquid level sensor cantilever is supported at a central position of the tank barrel section by a telescopic double-rod bracket and a rotatable three-rod bracket.

[0030] In some embodiments, each rotating rod in the rotatable three-rod bracket can rotate about a mounting hole on the tank barrel section to provide axial and radial constraints of the liquid level sensor;

[0031] Each telescopic rod in the telescopic double-rod bracket can compensate for the installation position deviation of the liquid level sensor by adjusting the length;

[0032] Stainless steel wire tensioning clamps are used to flexibly assist in fixing the liquid level sensor.

[0033] The central mounting bracket of the liquid level sensor in the rocket tank according to the embodiment of the present invention has at least one of the following advantages:

[0034] An embodiment of the present utility model provides a central mounting bracket for a liquid level sensor in a rocket tank, which can realize radially central mounting of a longer continuous liquid level sensor, reduce the influence of liquid sloshing on liquid level measurement, and the central mounting bracket can adapt to deformation coordination under external loads such as temperature load, pressure load, axial pressure load, etc., while ensuring the rigidity of the mounting bracket.

[0035] The central mounting bracket of this embodiment of the utility model utilizes an upper, retractable, dual-rod bracket, a lower, rotatable, three-rod bracket, and a middle, wire-tensioning clamp to achieve central mounting of the liquid level sensor cantilever. The lower, rotatable, three-rod bracket provides axial and radial restraint for the liquid level sensor, while the upper, retractable, dual-rod bracket can be adjusted in length to compensate for positional deviations during installation, facilitating installation. Multiple rotatable tabs interact with each other, ensuring easy installation and high rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] These and / or other aspects and advantages of the present invention will become apparent and readily understood from the following description of preferred embodiments in conjunction with the accompanying drawings, in which:

[0037] Figure 1 It is a structural diagram of a box bottom mounting bracket in the prior art;

[0038] Figure 2 It is a structural diagram of a side wall clamp mounting bracket in the prior art;

[0039] Figure 3 1 is a schematic structural diagram of a central mounting bracket for a liquid level sensor in a rocket tank according to an embodiment of the present utility model;

[0040] Figure 4 yes Figure 3 A schematic diagram of the structure of the telescopic double-rod bracket with a centrally mounted bracket and enlarged schematic diagrams of both ends are shown;

[0041] Figure 5 yes Figure 3 The schematic diagram of the structure of the rotatable three-rod bracket with the central mounting bracket and the enlarged schematic diagrams of the two ends are shown. DETAILED DESCRIPTION

[0042] The following examples and accompanying drawings further illustrate the technical solutions of the present invention. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall technical concept of the present invention and should not be construed as limiting the present invention.

[0043] See also Figure 3, shows a structural schematic diagram of a central mounting bracket 30 of a liquid level sensor in a rocket tank according to an embodiment of the present utility model.

[0044] The central mounting bracket 30 includes four components: a liquid level sensor 31 , a telescopic double-rod bracket 32 , a rotatable three-rod bracket 33 , and a stainless steel wire tensioning clamp 34 .

[0045] like Figure 3 As shown, the telescopic double-rod bracket 32 is usually set at the upper position of the central mounting bracket 30. The rotatable three-rod bracket 33 is usually set at the lower position of the central mounting bracket 30, and the stainless steel wire tensioning clamp 34 is correspondingly arranged at the middle position of the central mounting bracket 30.

[0046] It should be noted that the upper position, lower position and middle position here are all relative, and those skilled in the art can set specific heights according to actual needs.

[0047] The telescopic double-rod bracket 32 includes two telescopic rods with adjustable lengths; the rotatable three-rod bracket 33 includes three rotating rods that can rotate around the mounting holes.

[0048] In this embodiment, the liquid level sensor 31 is cantilevered and supported in the center of the tank segment through the cooperation of an upper telescopic dual-rod support 32 and a lower rotatable three-rod support 33. Specifically, each rotatable rod in the lower rotatable three-rod support 33 can rotate about a mounting hole in the tank segment. The rotatable three-rod support 33 provides axial and radial constraints on the liquid level sensor 31. The upper telescopic dual-rod support 32, by adjusting the length of the telescopic rods, can compensate for positional deviations during installation of the liquid level sensor 31, thereby ensuring the correct position of the liquid level sensor 31.

[0049] See also Figure 4 , shows a structural schematic diagram of the retractable double-rod bracket 32 of the central mounting bracket 30 of this embodiment and a partial enlarged schematic diagram.

[0050] The telescopic double-rod bracket 32 includes the two telescopic rods described above, a first clamp half-ring 321, and a double-ear half-ring 322. The double-ear half-ring 322 cooperates with the first clamp half-ring 321 to form a cavity that accommodates the liquid level sensor 31. One end of each of the two telescopic rods is fixedly connected to a lug on the double-ear half-ring 322. In other words, when the liquid level sensor 31 is secured, it passes through the cavity at one end of the telescopic double-rod bracket 32.

[0051] See also Figure 4As shown in the enlarged view, each telescopic rod includes a first double-ear piece 323, a left-handed threaded rod joint 324, a first locking nut 325, a first weld nut 326, a round tube tie rod 327, a second weld nut 326', a second locking nut 325', and a right-handed threaded rod joint 328, which are connected in sequence. The right-handed threaded rod joint 328 has a fixing hole (not shown) at the end thereof that is threadedly connected to a mounting hole in the tank barrel section, for example.

[0052] It should be noted that the first locking nut 325 and the second locking nut 325 ′ are identical components and are only distinguished here; accordingly, the first welding nut 326 and the second welding nut 326 ′ are also identical components and are only distinguished here.

[0053] The first double-ear piece 323 is bolted to the lugs of the double-ear piece half ring 322. A first weld nut 326 and a second weld nut 326' are welded to either side of the tubular tie rod 327. The first weld nut 326 on the side of the tubular tie rod 327 closest to the liquid level sensor 31 is fitted with a first lock nut 325, which is then screwed into a left-handed threaded rod connector 324. The second weld nut 326' on the other side of the tubular tie rod 327 closest to the tank wall is fitted with a second lock nut 325', which is then screwed into a right-handed threaded rod connector 328.

[0054] Through the above-mentioned structural setting, the length of the circular tube pull rod 327 is adjusted by rotating the circular tube pull rod 327. When the length of the circular tube pull rod 327 is adjusted to a preset length or an appropriate length, the first locking nut 325 and the second locking nut 325' are tightened and the safety is engaged, that is, the length of the circular tube pull rod 327 can be fixed and locked.

[0055] See also Figure 5 , shows a structural schematic diagram and an enlarged schematic diagram of the rotatable three-rod bracket 33 of the central mounting bracket 30 of this embodiment.

[0056] In addition to the three rotatable rods, the rotatable three-rod bracket 33 includes a second hoop half-ring 331 and a three-ear half-ring 332. The three-ear half-ring 332 cooperates with the second hoop half-ring 331 to form a cavity for accommodating the liquid level sensor 31. When the liquid level sensor 31 is secured, the lower end of the liquid level sensor 31 is received and secured within this cavity. One end of each of the three rotatable rods is rotatably connected to a lug on the three-ear half-ring 332.

[0057] Specifically, each rotating rod includes a pull rod 334 and a second double-ear piece 333 located on one end of the pull rod 334, one end of the second double-ear piece 333 is connected to the end of the pull rod 334 by a first bolt 335, and the other end of the second double-ear piece 333 is connected to the lug on the three-ear piece half ring 332 by a second bolt 336.

[0058] The extending direction of the first bolt 335 is perpendicular to the extending direction of the second bolt 336. That is, the mounting surface of the second double-ear piece 333 for mounting the first bolt 335 is approximately horizontal on the page, while the mounting surface of the second double-ear piece 333 for mounting the second bolt 336 extends approximately vertically on the page, thereby enabling the pull rod 334 to rotate relative to the page.

[0059] See also Figure 5 The enlarged view shows the fixing hole 337 on the end of the pull rod 334, which is used to be fixedly connected to the mounting hole on the wall of the tank barrel section, such as screwed fixation.

[0060] As can be seen from the above description, each rotating rod in the rotatable three-rod bracket 33 can rotate around the mounting holes in the tank barrel to provide axial and radial restraint for the liquid level sensor 31. Each telescopic rod in the telescopic two-rod bracket 32 can be adjusted in length to compensate for any deviation in the installation position of the liquid level sensor 31, ensuring its proper installation. The stainless steel wire tensioning clamp 34 flexibly assists in securing the liquid level sensor 31, reducing the load applied by the liquid level sensor 31 to the upper telescopic two-rod bracket 32 and the lower rotatable three-rod bracket 33 during overload conditions.

[0061] The central mounting bracket 30 for the liquid level sensor in the rocket tank proposed in the present invention can be used for the installation of a continuous liquid level sensor in the launch vehicle tank, thereby realizing the central installation of the liquid level sensor, meeting the liquid level measurement requirements, and the bracket installation operation is convenient, and the bracket stiffness meets the vibration environment requirements during use.

[0062] The central mounting bracket of the liquid level sensor in the rocket tank according to the embodiment of the present invention has at least one of the following advantages:

[0063] An embodiment of the present utility model provides a central mounting bracket for a liquid level sensor in a rocket tank, which can realize radially central mounting of a longer continuous liquid level sensor, reduce the influence of liquid sloshing on liquid level measurement, and the central mounting bracket can adapt to deformation coordination under external loads such as temperature load, pressure load, axial pressure load, etc., while ensuring the rigidity of the mounting bracket.

[0064] The central mounting bracket of this embodiment of the utility model utilizes an upper, retractable, dual-rod bracket, a lower, rotatable, three-rod bracket, and a middle, wire-tensioning clamp to achieve central mounting of the liquid level sensor cantilever. The lower, rotatable, three-rod bracket provides axial and radial restraint for the liquid level sensor, while the upper, retractable, dual-rod bracket can be adjusted in length to compensate for positional deviations during sensor installation, facilitating installation. Multiple rotatable tabs interact with each other, ensuring easy installation and high rigidity.

[0065] Although some embodiments of the present general technical concept have been shown and described, those skilled in the art will appreciate that changes may be made to these embodiments without departing from the principles and spirit of the present general technical concept, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A central mounting bracket for a liquid level sensor in a rocket tank, characterized in that: The center mounting bracket includes: a retractable double-rod bracket located on the upper layer of the central mounting bracket, the retractable double-rod bracket comprising two retractable rods of adjustable length; A rotatable three-rod bracket located below the central mounting bracket, the rotatable three-rod bracket comprising three rotating rods rotatable about the mounting holes; Stainless steel wire tensioning clamp located in the middle of the center mounting bracket.

2. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 1, characterized in that: The retractable double-rod bracket comprises: The first hoop half ring; A double-ear half ring, cooperating with the first hoop half ring to form a cavity for accommodating the liquid level sensor; Wherein, one end of each of the two telescopic rods is fixedly connected to the lug of the double-ear piece half ring.

3. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 2, characterized in that: Each telescopic rod comprises a first double-ear piece, a left-handed threaded rod joint, a first locking nut, a first welding nut, a round tube pull rod, a second welding nut, a second locking nut and a right-handed threaded rod joint which are connected in sequence.

4. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 3, characterized in that: The first double-ear piece is connected to the lugs of the double-ear piece half ring by bolts; The first welding nut and the second welding nut are welded on both sides of the round tube pull rod respectively. The first locking nut is sleeved on the first welding nut on the side of the round tube pull rod close to the liquid level sensor and screwed into the left-hand threaded rod joint. The second locking nut is sleeved on the second welding nut on the other side of the round tube pull rod close to the cylinder wall and is screwed into the right-hand threaded rod joint.

5. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 4, characterized in that: The length of the round tube pull rod is adjusted by rotating the round tube pull rod. When the length of the round tube pull rod is adjusted to a preset length, the length of the round tube pull rod is fixed and locked by tightening the first locking nut and the second locking nut.

6. The central mounting bracket for the liquid level sensor in a rocket tank according to any one of claims 1 to 5, characterized in that: The rotatable three-rod bracket comprises: The second hoop half ring; A three-ear half ring cooperates with the second hoop half ring to form a cavity for accommodating the liquid level sensor; One end of each of the three rotating rods is rotatably connected to the lug of the three-ear half ring.

7. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 6, characterized in that: Each rotating rod includes a pull rod and a second double-ear piece located on one end of the pull rod, one end of the second double-ear piece is connected to the end of the pull rod through a first bolt, and the other end of the second double-ear piece is connected to the lug on the three-ear piece half ring through a second bolt.

8. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 7, characterized in that: An extending direction of the first bolt and an extending direction of the second bolt are perpendicular to each other.

9. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 8, characterized in that: The liquid level sensor cantilever is supported at the center of the tank barrel section by a telescopic double-rod bracket and a rotatable three-rod bracket.

10. The central mounting bracket for the liquid level sensor in a rocket tank according to claim 9, characterized in that: Each rotating rod in the rotatable three-rod bracket can rotate around a mounting hole on the tank barrel section to provide axial and radial constraints for the liquid level sensor; Each telescopic rod in the telescopic double-rod bracket can compensate for the installation position deviation of the liquid level sensor by adjusting its length; The stainless steel wire tensioning clamp flexibly assists in fixing the liquid level sensor.

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