Intelligent catalyst compacting device and implementation method

Through the combination of the intelligent compaction module and the vibration module, the use of cylinders and pressure sensors to feedback the compaction force, combined with the servo motor and eccentric wheel to simulate the vibration environment, the problem of strong dependence on manual operation during the catalyst filling process is solved, the automatic compaction of the catalyst is achieved, the quality consistency is improved and the risk of breakage is avoided.

CN120667277APending Publication Date: 2025-09-19SHANGHAI INST OF SPACE PROPULSION
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Patent Information

Application Number
CN202511067906.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

The existing catalyst loading process relies on manual operation, resulting in strong dependence on operating experience, poor quality consistency, and difficulty in ensuring the uniform density of the catalyst and avoiding breakage.

Method used

The combination of intelligent compaction module, vibration module and control module is adopted. The compaction force is fed back by cylinder and pressure sensor, and the servo motor and eccentric wheel are combined to simulate the vibration environment to achieve automatic compaction of the catalyst.

Benefits of technology

The automated compaction process of the catalyst is realized, the compaction consistency is improved, the catalyst breakage and looseness caused by the inability to quantify the force control during manual operation are avoided, and the integrity and uniformity of the catalyst are ensured.

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Abstract

The invention provides an intelligent catalyst compacting device and an implementation method. The intelligent catalyst compacting device is characterized in that a compacting table top is a container for containing a catalyst to be compacted; the sliding guide rail extends horizontally, and the compacting table board slides along the sliding guide rail; the cylinder is correspondingly arranged above the catalyst and can extrude the catalyst, the fixed end of the cylinder is fixedly connected to the compacting table top, and the movable end of the cylinder corresponds to the opening shape of the compacting table top; the reversing valve can control the cylinder to lift; the pressure sensor is arranged at the movable end of the cylinder and feeds an acting force value back to the control module; the control module controls the pressing force on the catalyst; the vibration module comprises a servo motor and an eccentric wheel; the servo motor is arranged at one end of the sliding guide rail; the eccentric wheel is connected to an output shaft of the servo motor, is eccentrically provided with a rocker arm movably connected to the compacting table top, and rotates and drives the compacting table top to slide back and forth along the sliding guide rail to form a vibration environment. The device has the effect of ensuring that the catalyst is dense, uniform, compact and not crushed.
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Description

Technical Field

[0001] The present invention belongs to the field of rocket propulsion technology, and in particular, relates to a catalyst intelligent compacting device and an implementation method. Background Art

[0002] Monopropellant liquid rocket engines are a crucial component of rocket propulsion systems, providing the thrust required by the propulsion subsystem. As a key component of monopropellant engines, catalysts are a key factor influencing engine performance. The density of catalyst loading is crucial for ensuring engine performance.

[0003] The current method of compacting catalysts is manual, where a wooden stick is repeatedly struck against the metal shell to ensure uniform, dense, and crush-free loading. This manual method relies heavily on operator experience and leaves room for improvement in quality consistency.

[0004] In order to ensure that the catalyst is dense and uniform without being crushed, the present invention designs a catalyst intelligent compacting device and implementation method to solve the above problems. Summary of the Invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a catalyst intelligent compacting device and implementation method.

[0006] According to the present invention, a catalyst intelligent compacting device is provided, comprising: an intelligent compacting module, a vibration module and a control module;

[0007] The intelligent pressing module includes a compacting table, a sliding guide rail, a cylinder, a reversing valve and a pressure sensor;

[0008] The compacted table is a container for the catalyst that needs to be compacted;

[0009] The sliding guide rail extends horizontally, and the compact tabletop slides along the sliding guide rail;

[0010] The cylinder is arranged above the catalyst and can squeeze the catalyst, and the fixed end of the cylinder is fixedly connected to the dense table, and the movable end of the cylinder is arranged corresponding to the opening shape of the dense table;

[0011] The reversing valve can control the lifting and lowering of the cylinder;

[0012] The pressure sensor is set at the active end of the cylinder and feeds the force value back to the control module;

[0013] The control module controls the pressing force on the catalyst;

[0014] The vibration module includes a servo motor and an eccentric wheel;

[0015] The servo motor is arranged at one end of the sliding guide rail;

[0016] The eccentric wheel is connected to the output shaft of the servo motor. A rocker arm movably connected to the dense table top is eccentrically arranged on the eccentric wheel. The eccentric wheel rotates and drives the dense table top to slide back and forth along the sliding guide rail to form a vibration environment.

[0017] Preferably, the control module can adjust the rotation speed of the eccentric wheel.

[0018] Preferably, the eccentricity of the eccentric wheel rocker arm is adjustable, and the eccentricity is 0.5mm to 5mm.

[0019] Preferably, the control module can set an upper limit of the cylinder pressing force.

[0020] Preferably, the reversing valve is a solenoid valve.

[0021] According to a method for implementing a catalyst intelligent compacting device provided by the present invention, the catalyst intelligent compacting device is used, and the steps include:

[0022] Step S1: Place the catalyst product to be compacted on the compacting table. The control module gives a compacting force instruction, the reversing valve is activated, and the cylinder transmits the compacting force to the catalyst through the active end.

[0023] Step S2: A pressure sensor provided at the catalyst contact end feeds back the pressing force to the control module, and the control module performs closed-loop control of the pressing force;

[0024] Step S3: The control module gives a vibration instruction, the servo motor operates according to the instruction given by the control module, the eccentric wheel rotates at a certain speed, driving the product to reciprocate at a fixed frequency on the sliding guide rail, simulating a vibration environment, and the vibration automatically densifies the catalyst;

[0025] Step S4: After the catalyst is compacted, the pressing force becomes smaller, and the pressure sensor feeds back the pressing force to the control module, which then gives a new instruction. The cylinder adjusts the pressing force so that the pressing force always maintains the set force.

[0026] Preferably, in step S2:

[0027] The control module sets the upper limit of the clamping force for the cylinder.

[0028] Preferably, in step S3:

[0029] The control module adjusts the eccentric wheel speed and controls the vibration intensity.

[0030] Preferably, in step S3:

[0031] Adjust the eccentricity of the eccentric rocker arm to adapt to catalyst carriers of different sizes.

[0032] Preferably, in step S4:

[0033] The control module adjusts the cylinder pressure to keep the cylinder compression force constant.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention simulates the vibration environment by rotating the eccentric wheel. The vibration condition magnitude can be controlled by adjusting the eccentric wheel speed and the vibration amplitude can be controlled by the eccentricity, thereby realizing quantitative control and adjustment of the vibration environment.

[0036] 2. The present invention realizes the application of the pressing force through the cylinder and the pressure sensor. The upper limit of the pressing force can be set in combination with the characteristics of the catalyst itself, effectively preventing the problem of catalyst breakage caused by excessive pressing force.

[0037] 3. The present invention utilizes the closed-loop control of the cylinder by the control module, which effectively avoids the problem of being unable to quantify the control during manual implementation and can effectively improve the density consistency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0039] Figure 1 Schematic diagram of an embodiment of the present invention.

[0040] As shown in the figure, 1 is an intelligent pressing module; 11 is a dense table; 12 is a sliding guide rail; 13 is a cylinder; 14 is a reversing valve; 15 is a pressure sensor; 2 is a vibration module; 21 is a servo motor; 22 is an eccentric wheel; and 3 is a control module. DETAILED DESCRIPTION

[0041] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0042] like Figure 1 As shown, a catalyst intelligent compacting device includes: an intelligent compacting module 1, a vibration module 2 and a control module 3.

[0043] The intelligent pressing module 1 includes a compacting table 11 , a sliding guide rail 12 , a cylinder 13 , a reversing valve 14 and a pressure sensor 15 .

[0044] The compacting table 11 is a container for holding the catalyst to be compacted.

[0045] The sliding guide rail 12 extends horizontally, and the compact table top 11 slides along the sliding guide rail.

[0046] The cylinder 13 is arranged above the catalyst and can squeeze the catalyst. The fixed end of the cylinder 13 is fixedly connected to the dense table top 11, and the movable end of the cylinder 13 is arranged corresponding to the opening shape of the dense table top 11 to ensure that the catalyst does not fly or fall off during the subsequent vibration process. The movable end of the cylinder 13 limits the compression of the catalyst to ensure the integrity of the material.

[0047] The reversing valve 14 can control the lifting of the cylinder. The reversing valve 14 is a solenoid valve used to control the movement direction of the actuator cylinder 13.

[0048] The pressure sensor 15 is provided at the movable end of the cylinder 13 and feeds back the force value to the control module 3;

[0049] The control module 3 controls the pressing force of the cylinder 13 on the catalyst to achieve quantitative control of the pressing force, effectively preventing the catalyst from being broken due to excessive pressing force and the catalyst from being loose due to too little pressing force.

[0050] The control module 3 can set the upper limit of the compression force of the cylinder 13 in combination with the characteristics of different types of catalysts, and has a wide overpressure warning adaptability, effectively preventing the catalyst from being broken due to excessive compression force.

[0051] The vibration module 2 includes a servo motor 21 and an eccentric wheel 22 .

[0052] The servo motor 21 is disposed at one end of the sliding rail 12 .

[0053] The eccentric wheel 22 is connected to the output shaft of the servo motor 21. The eccentric wheel 22 is eccentrically provided with a rocker arm rotatably connected to the compacting table 11. The eccentric wheel 22 rotates and drives the compacting table 11 to slide back and forth along the sliding guide rail 12 to form a vibration environment.

[0054] The control module 3 adjusts the rotation speed of the eccentric wheel 22 to achieve quantitative control of the vibration conditions.

[0055] The eccentricity of the rocker arm of the eccentric wheel 22 is adjustable, and the eccentricity is 0.5mm to 5mm, so as to realize quantitative control of the vibration amplitude and adapt to catalyst carriers of different sizes and the dense table 11.

[0056] The vibration environment is simulated by rotating the eccentric wheel 22. The vibration condition magnitude can be controlled by adjusting the rotation speed of the eccentric wheel 22, and the vibration amplitude can be controlled by the eccentricity to achieve quantitative control and adjustment of the vibration environment, effectively preventing the force caused by repeated manual operation of the wooden stick from being unable to be quantitatively controlled, avoiding the catalyst breakage caused by excessive force and the non-compactness caused by insufficient force, and achieving automatic compaction of the catalyst.

[0057] At the same time, it effectively avoids the problem of being unable to quantify and control the manual implementation process, and can effectively improve the density and consistency of the product.

[0058] This embodiment also provides an implementation method of a catalyst intelligent compacting device for compacting catalysts, the steps comprising: Step S1: placing the catalyst product to be compacted on the compacting table 11, the control module 3 gives a compacting force instruction, the reversing valve 14 is actuated, and the cylinder 13 transmits the compacting force to the catalyst through the active end.

[0059] Step S2: The force sensor 15 provided at the catalyst contact end feeds back the pressing force to the control module 3, and the control module 3 performs closed-loop control on the pressing force.

[0060] Preferably, the control module 3 sets an upper limit for the pressing force of the cylinder 13 to prevent the catalyst from being broken due to excessive pressing force;

[0061] Step S3: The control module 3 gives a vibration instruction, the servo motor 21 operates according to the instruction given by the control module 3, and the eccentric wheel 22 rotates at a certain speed, driving the product to reciprocate at a fixed frequency on the sliding guide rail 12 to simulate a vibration environment. The vibration automatically compacts the catalyst.

[0062] Preferably, the control module 3 adjusts the rotation speed of the eccentric wheel 22 to control the vibration intensity, thereby achieving quantitative control of the vibration conditions and avoiding the catalyst breakage caused by excessive force and the problem of looseness caused by insufficient force.

[0063] Preferably, the eccentricity of the rocker arm of the eccentric wheel 22 is adjusted to adapt to catalyst carriers of different sizes.

[0064] Step S4: After the catalyst is compacted, the pressing force becomes smaller, and the force sensor 15 feeds back the pressing force to the control module 3, which then gives a new instruction. The cylinder adjusts the pressing force so that the pressing force always maintains the set force, thereby achieving quantitative control of the pressing force and effectively preventing the catalyst from being broken due to excessive artificial pressing force and the problem of non-compaction due to too little pressing force.

[0065] Preferably, the control module 3 adjusts the pressure of the cylinder 13 to keep the cylinder pressing force constant.

[0066] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0067] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A catalyst intelligent compacting device, characterized in that: include: An intelligent pressing module (1), a vibration module (2) and a control module (3); The intelligent pressing module (1) comprises a compacting table (11), a sliding guide rail (12), a cylinder (13), a reversing valve (14) and a pressure sensor (15); The dense table (11) is a container for holding the catalyst; The sliding guide rail (12) extends horizontally, and the compact table top (11) slides along the sliding guide rail; The cylinder (13) is arranged above the catalyst and can squeeze the catalyst, and the fixed end of the cylinder (13) is fixedly connected to the dense table (11), and the movable end of the cylinder (13) is arranged in a shape corresponding to the opening of the dense table (11); The reversing valve (14) can control the lifting and lowering of the cylinder; The pressure sensor (15) is arranged at the movable end of the cylinder and feeds back the force value to the control module (3); The control module (3) controls the pressing force on the catalyst; The vibration module (2) includes a servo motor (21) and an eccentric wheel (22); The servo motor (21) is arranged at one end of the sliding guide rail (12); The eccentric wheel (22) is connected to the output shaft of the servo motor (21). The eccentric wheel (22) is eccentrically provided with a rocker arm movably connected to the compact table (11). The eccentric wheel (22) rotates and drives the compact table (11) to slide back and forth along the sliding guide rail (12) to form a vibration environment.

2. The catalyst intelligent compacting device according to claim 1, characterized in that: The control module (3) can adjust the rotation speed of the eccentric wheel (22).

3. The catalyst intelligent compacting device according to claim 1, characterized in that: The eccentricity of the rocker arm of the eccentric wheel (22) is adjustable, and the eccentricity is 0.5 mm to 5 mm.

4. The catalyst intelligent compacting device according to claim 1, characterized in that: The control module (3) can set the upper limit of the pressing force of the cylinder (13).

5. The catalyst intelligent compacting device according to claim 1, characterized in that: The reversing valve (14) is a solenoid valve.

6. A method for implementing a catalyst intelligent compacting device, using the catalyst intelligent compacting device according to any one of claims 1 to 5, characterized in that the steps include: Step S1: placing the catalyst product to be compacted on the compacting table (11), the control module (3) gives a compacting force instruction, the reversing valve (14) is actuated, and the cylinder (13) transmits the compacting force to the catalyst through the active end; Step S2: a pressure sensor (15) provided at the catalyst contact end feeds back the pressing force to the control module (3), and the control module (3) performs closed-loop control on the pressing force; Step S3: The control module (3) gives a vibration instruction, the servo motor (21) operates according to the instruction given by the control module (3), and the eccentric wheel (22) rotates at a certain speed, driving the product to reciprocate at a certain frequency on the sliding guide rail (12), simulating a vibration environment, and the vibration automatically compacts the catalyst; Step S4: After the catalyst is compacted, the pressing force becomes smaller, and the pressure sensor (15) feeds back the pressing force to the control module (3). The control module (3) gives a new instruction, and the cylinder (13) adjusts the pressing force so that the pressing force always maintains the set force.

7. The implementation method of the catalyst intelligent compacting device according to claim 6, characterized in that: In step S2: The control module (3) sets an upper limit of the pressing force of the cylinder (13).

8. The implementation method of the catalyst intelligent compacting device according to claim 6, characterized in that: In step S3: The control module (3) adjusts the rotation speed of the eccentric wheel (22) to control the vibration intensity.

9. The implementation method of the catalyst intelligent compacting device according to claim 6, characterized in that: In step S3: The eccentricity of the rocker arm of the eccentric wheel (22) is adjusted to adapt to dense tabletops (11) of different sizes.

10. The implementation method of the catalyst intelligent compacting device according to claim 6, characterized in that: In step S4: The control module (3) adjusts the pressure of the cylinder (13) to keep the cylinder pressing force constant.