Supporting base for machining fuel tank of aircraft propeller

Abstract

The utility model relates to a supporting base for aircraft propeller fuel tank machining, and relates to the field of fuel tank machining equipment.The supporting base comprises at least two base bodies, the base bodies are installed at the two ends of a cylindrical section product respectively, driving mechanisms are arranged on the base bodies, a workbench is provided with a supporting seat, and the supporting seat is arranged on the workbench. The driving mechanism comprises a driving motor and a driving roller, the driving motor is installed on the base, the driving roller is fixedly connected with an output shaft of the driving motor, the supporting seat is installed on the workbench, a hard rail is installed on the supporting seat, and the driving roller is connected to the hard rail in a rolling mode. The device has the effect of avoiding generation of oil sludge while ensuring smooth movement of the base.

Description

Technical Field

[0001] The present application relates to the field of fuel tank processing equipment, and in particular to a support base for processing aircraft propulsion fuel tanks. Background Art

[0002] Aircraft propulsion systems utilize a combination of fuel and oxidizer to release enormous amounts of energy, propelling the aircraft at high speeds. Fuel tanks, a crucial component of aircraft propulsion systems, store these fuels. During this energy release, the fuel tanks must withstand high temperatures. To ensure the safety of the fuel tanks and the fuel stored within, their exteriors must be insulated.

[0003] When the fuel tank is insulated, an insulation layer needs to be applied to the outside of the fuel tank. In order to improve the uniformity of the insulation layer on the outside of the fuel tank, the insulation layer needs to be further processed and trimmed. The fuel tank needs to be stably clamped, positioned and supported to facilitate the processing of the fuel tank.

[0004] In order to adapt to fuel tanks of different lengths, it is usually necessary to adjust the position of the support base. Chinese patent application No. 202222464253.7 discloses a tooling fixture for processing aircraft propulsion fuel tanks, which adopts a screw-driven base method. In order to ensure the driving effect when the drive device is driven, the screw usually needs to be lubricated. However, since the waste chips during processing will fall onto the support base and mix with the lubricating oil used to lubricate the screw mechanism to form sludge, it increases the difficulty of cleaning the device. Utility Model Content

[0005] In order to ensure smooth movement of the base while avoiding the generation of sludge, the present application provides a support base for processing an aircraft propulsion fuel tank.

[0006] The present application provides a support base for machining an aircraft propulsion fuel tank, which adopts the following technical solution:

[0007] A support base for processing aircraft propulsion fuel tanks includes at least two bases, which are respectively installed at both ends of a cylindrical segment product. A driving mechanism is provided on the base, and a support base is provided on a workbench. The driving mechanism includes a driving motor and a driving roller. The driving motor is installed on the base, and the driving roller is fixedly connected to the output shaft of the driving motor. The support base is installed on the workbench, and a hard rail is installed on the support base. The driving roller is rollingly connected to the hard rail.

[0008] By adopting the above technical solution, a support base is provided on the workbench, a hard rail is provided on the support base, a driving roller is rotatably connected to the hard rail, and the driving motor drives the driving roller to rotate and move along the hard rail, thereby driving the base. This replaces the previous method of driving by a screw rod, can reduce the use of lubricating oil for lubricating the hard rail, avoids the falling of waste chips during processing and mixing with the lubricating oil, thereby reducing the generation of sludge and reducing the difficulty of cleaning the device.

[0009] In a specific possible implementation scheme, a plurality of support rods are provided at both ends of the base, and the plurality of support rods are symmetrically installed on both sides of the hard rail, and the support rods are threadedly connected to the base.

[0010] By adopting the above technical solution, when the auxiliary seat moves to a suitable supporting position, the piston rod of the supporting seat moves downward and is supported on the supporting seat, thereby sharing the force borne by the roller, thereby extending the service life of the roller.

[0011] In a specific possible implementation scheme, both sides of the base are rotatably connected to limit rollers, and the limit rollers are respectively in contact with the side walls of the support base.

[0012] By adopting the above technical solution and setting the limiting roller, the moving direction of the base can be limited, thereby avoiding the problem of affecting the service life of the roller due to long-term limitation by the roller.

[0013] In a specific possible implementation manner, a vertical limit block is installed on the base, and the vertical limit block is connected to the base through a bolt, and the vertical limit block is driven to press against the support seat by rotating the bolt.

[0014] By adopting the above technical solution, the vertical limit block is connected to the base by bolts. When the base is moved to the appropriate position, the vertical limit block is pressed against the support seat by tightening the bolts. The friction between the vertical limit block and the support seat improves the stability of the base, and at the same time can prevent the base from moving again after it is moved into place.

[0015] In a specific possible implementation scheme, it also includes a limiting screw and a transverse limiting block, a sliding groove is opened on the side wall of the vertical limiting block, the transverse limiting block is slidably connected in the sliding groove, and can abut against the side wall of the support seat, the limiting screw is threadedly connected to the side wall of the base, and a first extrusion block is installed at the end of the limiting screw away from the base, and the first extrusion block is used to squeeze the limiting block against the side wall of the support seat.

[0016] By adopting the above technical solution, after the base moves to a suitable position, the horizontal limit block is slidably connected to the slide groove provided on the side wall of the vertical limit block, and the limit screw is threadedly connected to the side wall of the base. By rotating the limit screw, the first extrusion block provided on the limit screw can be squeezed to drive the horizontal limit block to press against the support seat, thereby improving the stability of the base through the friction between the horizontal limit block and the support seat, and at the same time preventing the base from moving again after moving into place.

[0017] In a specific possible implementation scheme, a second extrusion block is installed on the rod portion of the limiting screw, an extrusion groove is provided on the lateral limiting block corresponding to the second extrusion block, and a partial structure of the second extrusion block extends into the extrusion groove.

[0018] By adopting the above technical solution, a second extrusion block is installed on the rod of the limit screw. When it is necessary to release the contact between the lateral limit block and the support seat, the limit screw is rotated in the opposite direction, and the second extrusion block squeezes the extrusion groove on the limit block, so that the limit block moves in the opposite direction and resets, avoiding interference with the movement of the base.

[0019] In a specific feasible implementation scheme, it also includes a synchronous transmission structure, and two of the support seats and rollers are provided. The synchronous transmission structure is installed on the base, and the drive motor is driven and connected to the synchronous transmission structure. The two drive rollers are installed on both sides of the base and are connected to the synchronous transmission structure. The two drive rollers are driven to rotate synchronously by the synchronous transmission structure, and the positions of the two support seats correspond to the settings of the two drive rollers.

[0020] By adopting the above technical solution, the output shaft of the driving motor is connected to the synchronous transmission structure, and then connected to the driving rollers installed on both sides of the base through the synchronous transmission structure. The synchronous transmission structure drives the driving rollers on both sides to rotate synchronously. The driving rollers roll on the hard rails on both sides and drive the base, thereby improving the stability of the base during movement.

[0021] In a specific embodiment, an auxiliary wheel is installed on the base at a position adjacent to the roller, and the auxiliary wheel is rollingly connected to the hard rail.

[0022] By adopting the above technical solution and setting the limiting roller, it is possible to play an auxiliary supporting role in the movement of the base. On the one hand, it can share the force borne by the roller, and on the other hand, it can improve the smoothness of the movement of the base.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. A support base is provided on the workbench, a hard rail is provided on the support base, a driving roller is connected to the hard rail in a rolling manner, and the driving motor drives the driving roller to rotate and move along the hard rail, thereby driving the base. This replaces the previous screw drive method, can reduce the use of lubricating oil for lubricating the hard rail, avoid the mixing of waste chips falling and lubricating oil during processing, thereby reducing the generation of sludge and reducing the difficulty of cleaning the device;

[0025] 2. Bolts connect the vertical limit block to the base. When the base is moved to the appropriate position, tighten the bolts to make the vertical limit block press against the support base. The friction between the vertical limit block and the support base improves the stability of the base.

[0026] 3. After the base moves to the appropriate position, the horizontal limit block is slidably connected to the slide groove provided on the side wall of the vertical limit block, and the limit screw is threadedly connected to the side wall of the base. By rotating the limit screw, the first extrusion block provided on the limit screw can be squeezed to drive the horizontal limit block to press against the support seat, thereby improving the stability of the base through the friction between the horizontal limit block and the support seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an embodiment of the present application.

[0028] Figure 2 This is a schematic diagram of the structure of the driving mechanism of an embodiment of the present application.

[0029] Figure 3 This is a structural schematic diagram from another perspective of an embodiment of the present application.

[0030] Figure 4 for Figure 3 Enlarged view of part A.

[0031] Explanation of the accompanying drawings: 1. Base; 2. Support mechanism; 3. Drive mechanism; 31. Drive motor; 32. Synchronous transmission structure; 33. Drive roller; 331. Limiting groove; 4. Support seat; 5. Hard rail; 6. Limiting roller; 7. Auxiliary wheel; 8. Limiting mechanism; 81. Vertical limiting block; 811. Clamping block; 812. Slide groove; 813. Extrusion groove; 82. Horizontal limiting block; 83. Limiting screw; 831. First extrusion block; 832. Second extrusion block; 9. Support seat. DETAILED DESCRIPTION

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0034] An embodiment of the present application discloses a support base for machining an aircraft propulsion fuel tank.

[0035] like Figure 1 As shown, the support base 1 for processing an aircraft propulsion fuel tank includes at least two bases 1, which are respectively installed at both ends of the fuel tank. A support mechanism 2 for supporting the fuel tank is provided on the base 1. The support mechanism 2 can be supported by a common roller structure. A driving mechanism 3 is provided on the base 1, and a support seat 4 is provided on the workbench. The driving mechanism 3 drives the base 1 to move along the support seat 4, thereby adjusting the distance between the two bases 1 to adapt to fuel tanks of different sizes.

[0036] like Figure 2 As shown, the driving mechanism 3 includes a driving motor 31, a synchronous transmission structure 32 and two driving rollers 33. The driving motor 31 is installed in the middle part of the sliding seat. The synchronous driving mechanism 3 adopts a worm gear mechanism. The worm is connected to the output shaft of the driving motor 31. The two driving rollers 33 are respectively installed at both ends of the worm gear, so that the two driving rollers 33 are installed on both sides of the sliding seat. The support seat 4 is provided with two driving rollers 33 corresponding to the two sides. The support seat 4 is provided with a hard rail 5. The driving roller 33 is provided with a limiting groove 331. The hard rail 5 abuts against the inner wall of the limiting groove 331, and the driving roller 33 can roll and move relative to the hard rail 5, so that the self-locking characteristics of the worm gear can be utilized to prevent the base 1 from moving reversely after being adjusted into place, thereby ensuring the stability of the driving roller 33.

[0037] A support base 4 is provided on the workbench, a hard rail 5 is provided on the support base 4, a driving roller 33 is rotatably connected to the hard rail 5, and the driving motor 31 drives the driving roller 33 to rotate and move along the hard rail 5, thereby driving the base 1. This replaces the previous method of driving by a screw rod, can reduce the use of lubricating oil for lubricating the hard rail 5, avoids the falling of waste chips during processing and mixing with the lubricating oil, thereby reducing the generation of sludge and reducing the difficulty of cleaning the device.

[0038] like Figure 3 As shown, in the embodiment of the present application, it also includes a limiting roller 6 and an auxiliary wheel 7. There are four limiting rollers 6, and the limiting rollers 6 are symmetrically installed on both sides of the base 1 in pairs. The limiting rollers 6 are rotatably connected to the base 1, and the limiting rollers 6 are respectively connected to the side walls of the support seats 4 on both sides that are away from each other, so that the moving direction of the base 1 is assisted by the limiting rollers 6 on both sides. There are two auxiliary wheels 7, and the two auxiliary wheels 7 are respectively installed at the positions adjacent to the rollers on both sides of the base 1. The auxiliary wheels 7 are arranged on the same horizontal line as the rollers. The auxiliary wheels 7 rotate It is connected to the base 1, and the auxiliary wheel 7 is rollingly connected to the hard rail 5, so that it can play an auxiliary supporting role in the movement of the base 1. On the one hand, it shares the force borne by the roller, and on the other hand, it can improve the smoothness of the movement of the base 1. Four support rods 9 are provided at the bottom of both sides of the base 1. The four support rods 9 are symmetrically installed on both sides of the hard rail 5. The support rods 9 are threadedly connected to the base 1. When the base 1 moves to the predetermined position, the support rods 9 are rotated and supported on the support seat 4, thereby sharing the force exerted on the base 1 by the fuel tank, further improving safety and stability.

[0039] like Figure 3 and Figure 4 As shown, in the embodiment of the present application, it also includes a limit mechanism 8, which includes a vertical limit block 81, a horizontal limit block 82 and a limit screw 83. The vertical limit block 81, the horizontal limit block 82 and the limit screw 83 are each provided with two, and the two vertical limit blocks 81 are respectively installed on the side walls of the base 1 on both sides. The vertical limit block 81 is connected to the base 1 by bolts, and a clamping block 811 is provided on the vertical limit block 81, and the support seat 4 can be clamped on the clamping block 811. When the base 1 moves, the bolts are loosened, so that the vertical limit block 81 moves downward relative to the base 1 and the abutment relationship between the side wall of the clamping block 811 and the support seat 4 is released. When the base 1 moves to a suitable position, the vertical limit block 81 is pressed against the support seat 4 by tightening the bolts, so that the support seat 4 abuts against the side wall of the clamping block 811. The friction between the vertical limit block 81 and the support seat 4 improves the stability of the base 1.

[0040] The vertical limit block 81 is provided with a sliding groove 812 in the length direction of the vertical support seat 4, the horizontal limit block 82 is slidably connected in the sliding groove 812, and can pass through the sliding groove 812 to abut against the side wall of the support seat 4, the horizontal limit screw 83 is threadedly connected to the side wall of the sliding seat, and the horizontal limit screw 83 is installed with a first extrusion block 831 at one end away from the sliding seat. The first extrusion block 831 is used to extrude the limit block against the side wall of the support seat 4, and a second extrusion block 832 is installed on the rod part of the limit screw 83. An extrusion groove 813 is provided on the horizontal limit block 82 corresponding to the second extrusion block 832, and part of the structure of the second extrusion block 832 extends into the extrusion groove 813.

[0041] After the base 1 moves to the appropriate position, the lateral limit block 82 is slidably connected to the slide groove 812 opened on the side wall of the vertical limit block 81, and the limit screw 83 is threadedly connected to the side wall of the base 1. By rotating the limit screw 83, the first extrusion block 831 set on the limit screw 83 can squeeze and drive the lateral limit block 82 to press against the support seat 4, thereby clamping and fixing the base 1 on the support seat 4 through the friction between the lateral limit blocks 82 on both sides and the side walls of the support seats 4 on both sides, thereby improving the stability of the base 1. When it is necessary to release the contact between the lateral limit block 82 and the support seat 4, the limit screw 83 is rotated in the opposite direction, and the second extrusion block 832 squeezes the extrusion groove 813 opened on the limit block, so that the limit block moves in the opposite direction and resets, avoiding interference with the movement of the base 1.

[0042] The implementation principle of the support base 1 for aircraft propulsion fuel tank processing in the embodiment of the present application is as follows: a support base 4 is set on the workbench, a hard rail 5 is set on the support base 4, and the driving roller 33 is rotatably connected to the hard rail 5. The driving motor 31 drives the driving roller 33 to rotate and move along the hard rail 5, thereby driving the base 1. This replaces the previous method of driving by a screw rod, and can reduce the use of lubricating oil to lubricate the hard rail 5, avoid the falling of waste chips and mixing with the lubricating oil during processing, thereby reducing the generation of oil sludge and reducing the difficulty of cleaning the device. When the base 1 moves to the appropriate position, the vertical limit block 81 is tightened to the support base 4 by tightening the bolts, so that the support base 4 abuts against the side wall of the clamping block 811. The friction between the vertical limit block 81 and the support base 4 is improved, and the lateral limit block 82 slides The movable connection is in the sliding groove 812 opened on the side wall of the vertical limit block 81, and the limit screw 83 is threadedly connected to the side wall of the base 1. By rotating the limit screw 83, the first extrusion block 831 set on the limit screw 83 can squeeze and drive the lateral limit block 82 to press against the support seat 4, thereby clamping the base 1 on the support seat 4 through the friction between the lateral limit blocks 82 on both sides and the side walls of the support seats 4 on both sides, improving the stability of the base 1. When the base 1 needs to move, the bolts are loosened to make the vertical limit block 81 move downward relative to the base 1 and release the abutment relationship between the side walls of the clamping block 811 and the support seat 4, and the limit screw 83 is rotated in the opposite direction. The second extrusion block 832 squeezes the extrusion groove 813 opened on the limit block, thereby making the limit block move in the opposite direction and reset, avoiding interference with the movement of the base 1.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A support base for machining an aircraft propulsion fuel tank, characterized by: The invention comprises at least two bases (1), wherein the bases (1) are respectively mounted on two ends of a cylindrical segment product, a driving mechanism (3) is arranged on the base (1), and a support seat (4) is arranged on a workbench, wherein the driving mechanism (3) comprises a driving motor (31) and a driving roller (33), wherein the driving motor (31) is mounted on the base (1), and the driving roller (33) is fixedly connected to the output shaft of the driving motor (31), and the support seat (4) is mounted on the workbench, wherein a hard rail (5) is mounted on the support seat (4), and the driving roller (33) is rollingly connected to the hard rail (5).

2. The support base for machining an aircraft propulsion fuel tank according to claim 1, characterized in that: A plurality of support rods (9) are provided at both ends of the base (1), and the plurality of support rods (9) are symmetrically installed on both sides of the hard rail (5), and the support rods (9) are threadedly connected to the base.

3. The support base for machining an aircraft propulsion fuel tank according to claim 2, characterized in that: Both sides of the base (1) are rotatably connected to limiting rollers (6), and the limiting rollers (6) are respectively in contact with the side walls on both sides of the support seat (4).

4. The support base for machining an aircraft propulsion fuel tank according to claim 1, characterized in that: A vertical limit block (81) is installed on the base (1), and the vertical limit block (81) is connected to the base (1) via a bolt. The vertical limit block (81) is driven to press against the support seat (4) by rotating the bolt.

5. The support base for machining an aircraft propulsion fuel tank according to claim 4, characterized in that: The invention also includes a limiting screw (83) and a transverse limiting block (82), wherein a sliding groove (812) is provided on the side wall of the vertical limiting block (81), and the transverse limiting block (82) is slidably connected in the sliding groove (812) and can abut against the side wall of the support seat (4), and the limiting screw (83) is threadedly connected to the side wall of the base (1), and a first extrusion block (831) is installed at one end of the limiting screw (83) away from the base (1), and the first extrusion block (831) is used to squeeze the transverse limiting block (82) against the side wall of the support seat (4).

6. The support base for machining an aircraft propulsion fuel tank according to claim 5, characterized in that: A second extrusion block (832) is installed on the shaft of the limiting screw (83), an extrusion groove (813) is provided on the lateral limiting block (82) corresponding to the second extrusion block (832), and a part of the structure of the second extrusion block (832) extends into the extrusion groove (813).

7. The support base for machining an aircraft propulsion fuel tank according to claim 1, characterized in that: The invention also includes a synchronous transmission structure (32), wherein the support seat (4) and the driving roller are both provided with two, the synchronous transmission structure (32) is installed on the base (1), the driving motor (31) is connected to the synchronous transmission structure (32), and the two driving rollers (33) are installed on both sides of the base (1) and connected to the synchronous transmission structure (32). The two driving rollers (33) are driven to rotate synchronously by the synchronous transmission structure (32), and the positions of the two support seats (4) correspond to the arrangement of the two driving rollers (33).

8. The support base for machining an aircraft propulsion fuel tank according to claim 7, characterized in that: An auxiliary wheel (7) is installed on the base (1) at a position adjacent to the driving roller (33), and the auxiliary wheel (7) is in rolling connection with the hard rail (5).

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