Demolding device for fuel grain of solid rocket engine

Abstract

The utility model relates to a demoulding device for a fuel grain of a solid rocket engine, a demoulding pressure head mechanism of the demoulding device comprises a cover plate and a pressurizing cylinder fixed on the cover plate, the cover plate is installed on a support through a pneumatic sliding table in a sliding mode, and a pressure sensor and a pressure head are fixed at the piston end of the pressurizing cylinder. The pressure sensor is used for detecting the pressure when the pressure head downwards presses the grain of the demolding workpiece; the automatic trolley comprises a trolley plate used for containing demolding workpieces and pulleys, and the automatic trolley is driven by a trolley air cylinder to slide along the support. A photoelectric switch sensor used for detecting a demolding workpiece and a displacement sensor used for detecting the offset of the demolding workpiece relative to the pressing head are fixed to the support, the photoelectric switch sensor and the pressure sensor are in signal connection to the cart air cylinder, and the displacement sensor is in signal connection to the pneumatic sliding table. According to the demolding device, automatic demolding of the grain can be achieved, the labor intensity can be relieved, the demolding efficiency can be improved, the influence of human factors can be avoided, and safe demolding is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of powder column demoulding, in particular to a demoulding device for solid rocket engine fuel powder columns. Background Art

[0002] Solid rocket engines, an indispensable component of modern aerospace technology, are widely used in fields such as satellite launches and missile defense systems due to their simple structure, easy maintenance, high reliability, and long-term storage. A solid rocket engine consists of several key components: a fuel grain, a combustion chamber, a nozzle, and an ignition device. Their operating principle is as follows: the fuel grain ignites and burns in the combustion chamber, generating high-temperature, high-pressure combustion gas. This gas expands and accelerates through the nozzle, converting it into kinetic energy and expelling it at an extremely high velocity, generating thrust to propel the rocket forward.

[0003] During the refueling process, a solid rocket engine requires a refueling cylinder to add sufficient fuel. Once the charge is filled and stabilized, the refueling cylinder is removed from the engine, and the remaining fuel needs to be removed from the cylinder for destruction. Due to the combined effects of the fuel pressure during the refueling process and other factors such as the binder within the fuel, the adsorption force between the fuel and the refueling cylinder is very strong, making it difficult to demold the fuel charge from the refueling cylinder. Traditional demolding methods often rely on manual demolding operations such as mechanical knocking. Manual demolding is not only labor-intensive and inefficient, but also complex and time-consuming, thus affecting the overall production efficiency of solid rocket engines. It is also easily affected by human factors, resulting in unstable demolding results. In addition, improper operation during manual demolding can easily cause explosions, posing a significant threat to the personal safety of operators, making it difficult to ensure safety during the production of solid rocket engines. Utility Model Content

[0004] The purpose of the utility model is to provide a demoulding device for solid rocket engine fuel column, so as to solve the technical problems of existing manual demoulding with high labor intensity, low efficiency and high safety risks.

[0005] The technical problem solved by the present invention can be achieved by adopting the following scheme: A demoulding device for a solid rocket engine fuel grain, comprising a bracket, a demoulding head mechanism and an automatic cart mounted on the bracket, wherein the demoulding head mechanism is used to press down the grain in the demoulding workpiece to demould it, and the automatic cart is used to carry the demoulding workpiece;

[0006] The demoulding pressure head mechanism includes a cover plate and a booster cylinder fixedly mounted on the cover plate, the cover plate is slidably mounted on the bracket through a pneumatic slide, a pressure sensor is fixedly mounted on the piston end of the booster cylinder, a pressure head for pressing down the medicine column is fixedly mounted below the pressure sensor, and the pressure sensor is used to detect the pressure when the pressure head presses down the medicine column; the automatic cart includes a car plate for placing the demoulding workpiece and a pulley mounted below the car plate and capable of sliding along the bracket, a cart cylinder is fixedly mounted on the bracket, and the piston end of the cart cylinder is fixedly connected to the car plate; a photoelectric switch sensor for detecting the demoulding workpiece and a displacement sensor for detecting the offset of the demoulding workpiece relative to the pressure head are fixedly mounted on the bracket, the photoelectric switch sensor and the pressure sensor signals are connected to the cart cylinder, and the displacement sensor signal is connected to the pneumatic slide.

[0007] Furthermore: when the pusher cylinder is actuated, it drives the car plate and the pulley to move along the X-axis direction, thereby driving the demoulding workpiece placed on the car plate to move along the X-axis direction.

[0008] Furthermore: when the pneumatic slide is in motion, it drives the cover plate to move along the Y-axis direction, thereby driving the boost cylinder, the pressure sensor and the pressure head to move along the Y-axis direction.

[0009] Furthermore: when the boost cylinder is actuated, it drives the pressure sensor and the pressure head to move along the Z-axis direction.

[0010] Further: a guide shaft is slidably installed on the cover plate, an intermediate plate is fixedly installed on the guide shaft, the pressure sensor is fixedly installed on the intermediate plate, a pressure head connecting plate is fixedly installed below the intermediate plate, and the pressure head is fixedly installed below the pressure head connecting plate.

[0011] Furthermore: the automatic cart also includes a slide rail fixedly mounted on the bracket, and the pulley is slidably mounted on the slide rail.

[0012] Furthermore: a connecting piece is fixedly installed on the piston end of the cart cylinder, and the connecting piece is fixedly installed on the bottom of the cart plate; the cylinder body of the cart cylinder is fixedly installed on the cylinder base, and the cylinder base is fixedly installed on the bracket.

[0013] Furthermore: the demoulding workpiece includes a demoulding shell, the demoulding shell is used to accommodate the medicine column, and the medicine column can be separated from the demoulding shell when the pressure head presses down the medicine column to demould it.

[0014] Furthermore: a baffle is detachably installed under the demoulding part shell, and the medicine column can fall into the baffle after being separated from the demoulding part shell.

[0015] Furthermore: two displacement sensors arranged opposite to each other are fixedly mounted on the bracket.

[0016] The utility model discloses a demolding device for solid rocket engine fuel grains. During demolding, the demolding workpiece is first placed on the carriage plate of an automatic cart. At this time, the demolding workpiece is in its starting position. Then, the push cylinder of the automatic cart is activated, driving the carriage plate and pulley of the automatic cart to move along a bracket, thereby driving the demolding workpiece placed on the carriage plate to move. After the demolding workpiece moves to a position where it can be detected by a photoelectric switch sensor, the photoelectric switch sensor sends a detection signal to the push cylinder. When the push cylinder stops, the demolding workpiece stops moving. During the process of the demolding workpiece moving from the starting position to the position detected by the displacement sensor and until it stops moving, the displacement sensor detects the offset of the demolding workpiece relative to the pressure head of the demolding pressure head mechanism, and converts the offset into an electrical signal and sends it to the pneumatic slide of the demolding pressure head mechanism. After receiving the signal, the pneumatic slide automatically adjusts its extension and contraction according to the offset, thereby driving the cover plate of the demolding pressure head mechanism to slide along the bracket, thereby driving the booster cylinder, pressure sensor, and pressure head to move, so that the pressure head of the demolding pressure head mechanism reaches directly above the grain of the demolding workpiece. Afterwards, the booster cylinder is activated to make the pressure head align with the medicine column and press it down to demold it. During the demolding process, the pressure sensor detects the pressure when the pressure head presses the medicine column. After the medicine column is demolded, the booster cylinder is activated to make the pressure head rise. At the same time, the pressure sensor detects the sudden decrease in pressure and sends the detection signal to the trolley cylinder of the automatic trolley. After receiving the signal, the trolley cylinder retracts, causing the automatic trolley to return to the origin along the original path.

[0017] The demolding device for solid rocket motor fuel grains of the present utility model achieves remote and automatic demolding of solid rocket motor fuel grains through the above-mentioned process, thereby replacing manual demolding. This can save labor costs, reduce demolding difficulty, alleviate labor intensity, and improve demolding efficiency, thereby accelerating the overall production speed of solid rocket motors. Furthermore, it can avoid the influence of human factors during the demolding process, ensure demolding effectiveness and safety, significantly reduce the risk of explosion during the demolding process, and ensure safety during the solid rocket motor production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a demoulding device for a solid rocket motor fuel grain according to the present invention;

[0020] Figure 2This is a side view of a demoulding device for a solid rocket motor fuel grain according to the present invention;

[0021] Figure 3 This is a structural schematic diagram of a demoulding head mechanism of a demoulding device for a solid rocket engine fuel grain according to the present invention;

[0022] Figure 4 This is a front view of a demoulding head mechanism of a demoulding device for a solid rocket motor fuel grain according to the present invention;

[0023] Figure 5 This is a schematic structural diagram of an automatic cart for a demoulding device of a solid rocket motor fuel grain according to the present invention;

[0024] Figure 6 This is a schematic cross-sectional view of an automatic cart for a demoulding device for solid rocket motor fuel grains according to the present invention;

[0025] Figure 7 yes Figure 1 A local enlarged view of point A;

[0026] Figure 8 yes Figure 1 A partial enlarged view of point B;

[0027] Figure 9 This is a schematic structural diagram of a bracket for a demoulding device of a solid rocket engine fuel grain according to the present invention;

[0028] Figure 10 This is a schematic structural diagram of a demoulding workpiece of a demoulding device for a solid rocket engine fuel grain according to the present invention;

[0029] Figure 11 This is a schematic diagram of the internal structure of a demoulding workpiece of a demoulding device for a solid rocket engine fuel grain according to the present invention;

[0030] Main parts and numbers:

[0031] Bracket: 1;

[0032] Demolding press head mechanism: 2; cover plate: 21; booster cylinder: 22; pneumatic slide: 23; pressure sensor: 24; press head: 25; guide shaft: 26; intermediate plate: 271; press head connecting plate: 272; pneumatic slide connecting plate: 273;

[0033] Automatic cart: 3; Carriage plate: 31; Pulley: 32; Carriage cylinder: 33; Slide rail: 34; Connector: 35; Cylinder base: 36;

[0034] Demolding workpiece: 4; Grain column: 41; Demolding shell: 42; Baffle: 43;

[0035] Photoelectric switch sensor: 51; displacement sensor: 52. DETAILED DESCRIPTION

[0036] In order to more clearly demonstrate the purpose, technical solutions and advantages of the present invention, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0037] Figure 1 、 2 This is a structural diagram of a demoulding device for a solid rocket engine fuel grain according to this embodiment, as shown in FIG. Figure 1 、 2 As shown, the demoulding device includes a bracket 1, a demoulding head mechanism 2 is installed above the bracket 1, and an automatic trolley 3 is installed below the bracket 1. The demoulding head mechanism 2 is used to press down the powder column 41 in the demoulding workpiece 4 to demould it. The powder column 41 is a solid rocket engine fuel powder column, and the automatic trolley 3 is used to carry the demoulding workpiece 4.

[0038] like Figure 3 、 4 As shown, the demoulding pressure head mechanism 2 includes a cover plate 21 and a booster cylinder 22 fixedly mounted on the cover plate 21. The cover plate 21 is slidably mounted on the bracket 1 via a pneumatic slide 23. The pneumatic slide is a conventional transmission component that uses air pressure to achieve a moving function, and can achieve the sliding of one component relative to another. The cylinder body of the booster cylinder 22 is fixedly mounted on the cover plate 21. A pressure sensor 24 is fixedly mounted on the piston end of the booster cylinder 22. A pressure head 25 for pressing down the medicine column 41 is fixedly mounted below the pressure sensor 24. The pressure sensor 24 is used to detect the pressure when the pressure head 25 presses down the medicine column 41. Figure 5 、 6 As shown, the automatic trolley 3 includes a car plate 31 and a pulley 32 installed under the car plate 31. The car plate 31 is used to place the demoulding workpiece 4. The pulley 32 can slide along the bracket 1. A trolley cylinder 33 is fixedly installed on the bracket 1. The piston end of the trolley cylinder 33 is fixedly connected to the car plate 31. When the trolley cylinder 33 is actuated, it drives the car plate 31 to move. When the car plate 31 moves, the pulley 32 slides along the bracket 1, thereby driving the demoulding workpiece 4 located on the car plate 31 to move.

[0039] like Figure 1 、 7As shown in Figure 9, a photoelectric switch sensor 51 and a displacement sensor 52 are fixedly mounted on the bracket 1. The photoelectric switch sensor is a common sensor that uses light beams (such as near-infrared and infrared) to detect and identify objects. In this embodiment, the photoelectric switch sensor 51 is used to detect whether the demolding workpiece 4 has reached a specified position. The displacement sensor is a common sensor that converts a measured physical quantity into an electrical signal and can be used to measure mechanical displacement. In this embodiment, the displacement sensor 52 is used to detect the offset of the demolding workpiece 4 relative to the pressure head 25. The signals of the photoelectric switch sensor 51 and the pressure sensor 24 are connected to the cart cylinder 33, and the signal of the displacement sensor 52 is connected to the pneumatic slide 23.

[0040] When demolding is performed using the demolding device for solid rocket engine fuel pellets of this embodiment, the demolding workpiece 4 is first placed on the car plate 31 of the automatic cart 3. At this time, the demolding workpiece 4 is in its starting position. Then, the cart cylinder 33 of the automatic cart 3 is started, driving the car plate 31 and the pulley 32 of the automatic cart 3 to move along the bracket 1, thereby driving the demolding workpiece 4 placed on the car plate 31 to move. After the demolding workpiece 4 moves to a position where it can be detected by the photoelectric switch sensor 51, the photoelectric switch sensor 51 sends a detection signal to the cart cylinder 33. When the cart cylinder 33 stops moving, the demolding workpiece 4 stops moving. During the process of the demolding workpiece 4 moving from the starting position to the position detected by the displacement sensor 52 and stopping moving, the displacement sensor 52 detects the offset of the demolding workpiece 4 relative to the pressure head 25 in the demolding pressure head mechanism 2, and converts the offset into an electrical signal and sends it to the pneumatic slide 23 of the demolding pressure head mechanism 2. After receiving the signal, the pneumatic slide 23 automatically adjusts the extension and contraction amount according to the offset, thereby driving the cover plate 21 of the demolding pressure head mechanism 2 to slide along the bracket 1, and then drives the boost cylinder 22, the pressure sensor 24, and the pressure head 25 to move, so that the pressure head 25 in the demolding pressure head mechanism 2 reaches directly above the medicine column 41 of the demolding workpiece 4. Afterwards, the boost cylinder 22 is activated to make the pressure head 25 align with the medicine column 41 and press it down to demould it. During the demoulding process, the pressure sensor 24 detects the pressure when the pressure head 25 presses down the medicine column 41. After the medicine column 41 is demoulded, the boost cylinder 22 is activated to make the pressure head 25 rise. At the same time, the pressure sensor 24 detects that the pressure suddenly decreases and sends the detection signal to the trolley cylinder 33 of the automatic trolley 3. After receiving the signal, the trolley cylinder 33 retracts, causing the automatic trolley 3 to return to the origin along the original path.

[0041] like Figure 1As shown, in this embodiment, when the push cylinder 33 is actuated, it drives the car plate 31 and pulley 32 to move along the X-axis, thereby driving the demolding workpiece 4 placed on the car plate 31 to move along the X-axis. When the pneumatic slide 23 is actuated, it drives the cover plate 21 to move along the Y-axis, thereby driving the booster cylinder 22, pressure sensor 24, and pressure head 25 mounted on the cover plate 21 to move along the Y-axis. When the booster cylinder 22 is actuated, it drives the pressure sensor 24 mounted on its piston end and the pressure head 25 mounted below the pressure sensor 24 to move along the Z-axis.

[0042] In order to ensure that the pressing head 25 can move along a specific track, in this embodiment, the pressing head 25 is ensured to move along the Z-axis direction, such as Figure 3 、 4 As shown, a guide shaft 26 is slidably mounted on the cover plate 21, an intermediate plate 271 is fixedly mounted on the guide shaft 26, the pressure sensor 24 is fixedly mounted above the intermediate plate 271, a pressure head connecting plate 272 is fixedly mounted below the intermediate plate 271, and the pressure head 25 is fixedly mounted below the pressure head connecting plate 272. In this embodiment, a through hole is opened on the cover plate 21, and the guide shaft 26 is inserted into the through hole and can slide in the through hole. The guide shaft 26 is perpendicular to the cover plate 21. In this embodiment, pneumatic slides 23 are installed on both sides of the cover plate 21, and a total of two pneumatic slides 23 are provided. The two pneumatic slides 23 are respectively mounted on the bracket 1 through the pneumatic slide connecting plates 273, that is, the pneumatic slide connecting plates 273 are fixedly mounted on the bracket 1, the upper side of the pneumatic slide 23 is fixedly mounted below the pneumatic slide connecting plate 273, and the lower side of the pneumatic slide 23 is fixedly connected to the cover plate 21.

[0043] like Figure 5 、 6 As shown, in order to ensure that the automatic cart 3 moves along a specific trajectory, in this embodiment, the automatic cart 3 moves along the X-axis direction, the automatic cart 3 also includes a slide rail 34 fixedly mounted on the bracket 1, and the pulley 32 is slidably mounted on the slide rail 34. To achieve the connection between the various components, the piston end of the cart cylinder 33 is fixedly mounted with a connector 35, and the connector 35 is fixedly mounted on the bottom of the vehicle plate 31; the cylinder body of the cart cylinder 33 is fixedly mounted on a cylinder base 36, and the cylinder base 36 is fixedly mounted on the bracket 1.

[0044] For the specific structure of the demoulding workpiece 4, such as Figure 10 、 11As shown, the demolding workpiece 4 includes a demolding housing 42, which is used to accommodate the grain 41. When the pressing head 25 presses the grain 41 downward to release it from the demolding housing 42, the grain 41 can be released from the demolding housing 42. In this embodiment, the demolding housing 42 can be the cylinder body of a solid rocket engine refueling cylinder. To facilitate the removal of the grain 41 from the demolding housing 42 after demolding, a baffle 43 is detachably fixedly mounted below the demolding housing 42 in this embodiment. After the grain 41 is released from the demolding housing 42, it can fall into the baffle 43. After the grain 41 falls into the baffle 43, the demolding housing 42 and the baffle 43 are disassembled, and the grain 41 is removed from the baffle 43. The baffle 43 can be made of a flexible material such as foam.

[0045] like Figure 9 As shown, in this embodiment, two displacement sensors 52 are fixedly mounted on the bracket 1. Placing the two displacement sensors opposite to each other is a common method of using displacement sensors to detect the displacement of an object relative to another object, or to detect the displacement of an object in a specific direction.

[0046] When demolding is performed using the demolding device for solid rocket engine fuel grains of the present embodiment, the pressure head 25 is lifted by the boost cylinder 22 according to the height of the demolding workpiece 4, so that the pressure head 25 is at an appropriate distance from the demolding workpiece 4, and the demolding workpiece 4 is hoisted onto the car plate 31 of the automatic cart 3. At this time, the demolding workpiece 4 is in its starting position, and then the trolley cylinder 33 of the automatic cart 3 is started, driving the car plate 31 and the pulley 32 of the automatic cart 3 to move along the bracket 1, and then driving the demolding workpiece 4 placed on the car plate 31 to move along the X-axis direction. After the demolding workpiece 4 moves to a position where it can be detected by the photoelectric switch sensor 51, the photoelectric switch sensor 51 sends a detection signal to the trolley cylinder 33. When the trolley cylinder 33 stops moving, the demolding workpiece 4 stops moving. During the process of the demolding workpiece 4 moving from the starting position to the position detected by the displacement sensor 52 and stopping, the displacement sensor 52 detects the offset of the demolding workpiece 4 relative to the pressure head 25 in the demolding pressure head mechanism 2, that is, the displacement sensor 52 detects the offset of the demolding workpiece 4 in the Y-axis direction, and at the same time converts the offset into an electrical signal and sends it to the pneumatic slide 23 of the demolding pressure head mechanism 2. After receiving the signal, the pneumatic slide 23 automatically adjusts the extension and contraction amount according to the offset, thereby driving the cover plate 21 of the demolding pressure head mechanism 2 to slide along the bracket 1, and then drives the boost cylinder 22, the pressure sensor 24, and the pressure head 25 to move along the Y-axis direction, so that the pressure head 25 in the demolding pressure head mechanism 2 reaches directly above the medicine column 41 of the demolding workpiece 4. Afterwards, the boost cylinder 22 is actuated to cause the pressure head 25 to press down on the medicine column 41 along the Z-axis direction to demold it. After demolding, the medicine column 41 falls into the retaining plate 43 of the demolding workpiece 4. During the demolding process, the pressure of the pressure head 25 when pressing down the medicine column 41 is detected by the pressure sensor 24. The pressure detected by the pressure sensor 24 can be used as experimental data for adjusting the downward pressure of the pressure head 25 on the medicine column 41, and can also be used as experimental data for the input air pressure of the boost cylinder 22 and the demolding effect of the medicine column 41. After the medicine column 41 is demoulded, the booster cylinder 22 is actuated to cause the pressure head 25 to rise in the Z-axis direction. At the same time, the pressure sensor 24 detects a sudden decrease in pressure and sends a detection signal to the trolley cylinder 33 of the automatic trolley 3. The trolley cylinder 33 retracts after receiving the signal, causing the automatic trolley 3 to return to the origin along the original path. After returning to the origin, the automatic trolley 3 drives the demoulding workpiece 4 to its starting position, disassembles the demoulding part shell 42 of the demoulding workpiece 4 from the baffle 43, and uses a lifting device to lift the demoulding part shell 42. The staff transports the medicine column 41 that has fallen into the baffle 43 away.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A demoulding device for solid rocket motor fuel grains, characterized by: The invention comprises a support (1), a demoulding head mechanism (2) and an automatic cart (3) installed on the support (1), wherein the demoulding head mechanism (2) is used for pressing down a medicine column (41) in a demoulding workpiece (4) to demould it, and the automatic cart (3) is used for carrying the demoulding workpiece (4); The demoulding press head mechanism (2) comprises a cover plate (21) and a pressurizing cylinder (22) fixedly mounted on the cover plate (21); the cover plate (21) is slidably mounted on the bracket (1) via a pneumatic slide (23); a pressure sensor (24) is fixedly mounted on the piston end of the pressurizing cylinder (22); a press head (25) for pressing down the medicine column (41) is fixedly mounted below the pressure sensor (24); the pressure sensor (24) is used to detect the pressure when the press head (25) presses down the medicine column (41); the automatic cart (3) comprises a car plate (31) for placing the demoulding workpiece (4) and a pressure sensor (25) mounted on the car plate (31) ) below and capable of sliding along the bracket (1), a pusher cylinder (33) is fixedly mounted on the bracket (1), and a piston end of the pusher cylinder (33) is fixedly connected to the vehicle plate (31); a photoelectric switch sensor (51) for detecting the demoulding workpiece (4) and a displacement sensor (52) for detecting the offset of the demoulding workpiece (4) relative to the pressure head (25) are fixedly mounted on the bracket (1), the signals of the photoelectric switch sensor (51) and the pressure sensor (24) are connected to the pusher cylinder (33), and the signal of the displacement sensor (52) is connected to the pneumatic slide table (23).

2. The demoulding device for solid rocket motor fuel grains according to claim 1, characterized in that: When the pusher cylinder (33) is in operation, it drives the vehicle plate (31) and the pulley (32) to move along the X-axis direction, thereby driving the demoulding workpiece (4) placed on the vehicle plate (31) to move along the X-axis direction.

3. The demoulding device for solid rocket motor fuel grains according to claim 2, characterized in that: When the pneumatic slide (23) is in motion, it drives the cover plate (21) to move along the Y-axis direction, thereby driving the boost cylinder (22), the pressure sensor (24) and the pressure head (25) to move along the Y-axis direction.

4. The demoulding device for solid rocket motor fuel grains according to claim 3, characterized in that: When the boost cylinder (22) is in operation, it drives the pressure sensor (24) and the pressure head (25) to move along the Z-axis direction.

5. The demoulding device for solid rocket motor fuel grains according to claim 1, characterized in that: A guide shaft (26) is slidably mounted on the cover plate (21), an intermediate plate (271) is fixedly mounted on the guide shaft (26), the pressure sensor (24) is fixedly mounted on the intermediate plate (271), a pressure head connecting plate (272) is fixedly mounted below the intermediate plate (271), and the pressure head (25) is fixedly mounted below the pressure head connecting plate (272).

6. The demoulding device for solid rocket motor fuel grains according to claim 1, characterized in that: The automatic cart (3) further comprises a slide rail (34) fixedly mounted on the bracket (1), and the pulley (32) is slidably mounted on the slide rail (34).

7. The demoulding device for solid rocket motor fuel grains according to claim 1, characterized in that: A connecting piece (35) is fixedly mounted on the piston end of the cart cylinder (33), and the connecting piece (35) is fixedly mounted on the bottom of the cart plate (31); the cylinder body of the cart cylinder (33) is fixedly mounted on a cylinder base (36), and the cylinder base (36) is fixedly mounted on the bracket (1).

8. The demoulding device for solid rocket motor fuel grains according to claim 1, characterized in that: The demoulding workpiece (4) comprises a demoulding shell (42), the demoulding shell (42) is used to accommodate the medicine column (41), and the pressing head (25) presses down the medicine column (41) to enable the medicine column (41) to be separated from the demoulding shell (42) when demoulding.

9. The demoulding device for solid rocket motor fuel grains according to claim 8, characterized in that: A baffle (43) is detachably mounted below the demoulding housing (42), and the drug column (41) can fall into the baffle (43) after being separated from the demoulding housing (42).

10. The demoulding device for solid rocket motor fuel grains according to claim 3, characterized in that: Two displacement sensors (52) arranged opposite to each other are fixedly mounted on the bracket (1).

Images