High-flow fuel pump test board

Abstract

The utility model relates to the technical field of fuel pump testing, in particular to a high-flow fuel pump test board which comprises a frame body, a turnover assembly is arranged at the top of one supporting column and comprises a supporting plate and a worm rotationally connected above the supporting plate, a worm gear rotationally connected with the supporting column is arranged above the worm, one end of the worm is provided with a first conical tooth, and the other end of the worm is provided with a second conical tooth. A second conical tooth is arranged on one side of the first conical tooth, a rotating disc is arranged at the central axis of the second conical tooth, a detachable oil tank is arranged between the two supporting columns, and an oil collecting disc is arranged in the mounting groove; according to the high-flow fuel pump test board, the frame body with the oil collecting disc is arranged, under the cooperation of the worm gear and the worm, a first conical tooth at the tail end of the worm is matched with a second conical tooth, a crank on the rotating disc rotates to drive the worm gear to rotate, and under the cooperation of the two rotating shafts with the clamping seats, overturning cooperation of the installed fuel tank is achieved; the fixing bolt penetrates through the penetrating hole in the clamping base and is in threaded connection with the screw hole, and the oil tank and the clamping base are fixedly installed and matched.

Description

Technical Field

[0001] This utility model relates to the field of fuel pump testing technology, specifically a high-flow fuel pump test bench. Background Technology

[0002] Fuel pump is a professional term in the airborne accessories maintenance industry. It is one of the basic components of the fuel injection system of an aircraft fuel system. In some helicopters, the high-flow fuel pump is an important part of the aircraft. The function of the high-flow fuel pump is to draw fuel from the fuel tank, pressurize it and deliver it to the fuel supply line. It works with the fuel pressure regulator to establish a certain fuel pressure. The fuel pump consists of an electric motor, rotor and impeller. After the maintenance work is completed, the fuel pump needs to be tested on a test bench.

[0003] Utility model announcement CN222208253U discloses a fuel pump test bench, including a workbench with a groove at the top center. A fuel supply assembly is provided on the workbench, a support plate is provided inside the groove, a support plate is provided above the support plate, a limiting assembly is provided on the support plate, and a collection assembly for collecting fuel is provided on the workbench. The collection assembly includes a guide plate, a fuel outlet pipe, a collection box, a drain pipe, and a solenoid valve. The guide plate is located on the inner bottom wall of the groove, the fuel outlet pipe is located on the support plate, and the collection box is located at the bottom of the workbench and communicates with the interior of the groove.

[0004] The above technical solution, by setting up a fuel supply component, facilitates the detection of the fuel pump; by setting up a limit component, facilitates the limiting of the fuel pump on the support plate; and by setting up a collection component, collects the fuel dripping from the fuel pump. However, the fuel tank being monitored is not easy to place stably on the corresponding test platform, and the fuel tank being monitored is generally fixed on the test platform, making it inconvenient to rotate it for testing. Furthermore, the installation between the fuel pump and the fuel tank is not convenient or stable enough. Utility Model Content

[0005] The purpose of this invention is to provide a high-flow fuel pump test bench to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-flow fuel pump test bench includes a frame. Support columns are provided on both sides of the upper surface of the frame near the middle. A flipping assembly is provided on the top of one of the support columns. The flipping assembly includes a support plate and a worm gear rotatably connected above the support plate. A worm wheel is provided above the worm gear and rotatably connected to the support column. A first conical tooth is provided at one end of the worm gear, and a second conical tooth is provided on one side of the first conical tooth. A turntable is provided at the central axis of the second conical tooth. A detachable fuel tank is provided between the two support columns. Mounting grooves are provided on both ends of the upper surface of the frame, and an oil collection tray is provided in the mounting groove.

[0008] A rotating column is provided at the middle of both sides of the oil tank, corresponding to the worm gear. A level gauge is also provided on the front side of the oil tank near the side. An oil pump is installed on the top of the oil tank. A regulating valve pipe is provided on the bottom surface of the oil tank.

[0009] Furthermore, the lower surface of the frame is equipped with self-locking casters near the four corners, and the top of the self-locking casters is fixedly connected to the frame with screws.

[0010] In this invention, the cooperation of four self-locking casters facilitates flexible movement of the entire unit. The self-locking casters are also equipped with a pedal. Pressing down on the pedal restricts the position of the casters, thus fixing their positions. When movement is required, pressing up on the pedal releases the fixation of the casters, enabling flexible movement.

[0011] Specifically, the width of the inner wall of the mounting groove is adapted to the width of the outer wall of the oil collecting pan, and the top of the oil collecting pan is symmetrically provided with handles.

[0012] In this invention, the handle provides a point of leverage, making it easy to remove and replace or clean the oil collection tray. The oil collection tray is inserted into the mounting slot, increasing the stability of the assembly.

[0013] It should be noted that the pallet is welded and fixed to one of the support columns. The upper surface of the pallet is symmetrically provided with a second rotating seat at the worm gear. The worm gear is rotatably connected to the second rotating seat. The upper surface of the pallet is provided with a first rotating seat below the second conical tooth. The two ends of the second conical tooth are rotatably connected to the first rotating seat through a rotating shaft.

[0014] In this invention, the first rotating seat facilitates the limitation of the rotation position of the second conical tooth, and the second rotating seat facilitates the limitation of the rotation position of the worm gear, thereby increasing the stability of the assembly without affecting the rotational engagement.

[0015] Furthermore, the worm gear meshes with the worm, and the worm gear is rotatably connected to one of the support columns via a rotating shaft. A retainer is provided at the center of the worm gear rotating shaft, a retainer groove is provided on the top of the retainer, and a through hole is provided on the outer wall of the retainer. A retainer is also provided at the top of the other support column corresponding to the rotating column.

[0016] In this invention, the worm and worm wheel mesh to achieve synchronous rotation, and with the cooperation of the rotating shaft, the rotation of the worm wheel drives one of the card holders to rotate.

[0017] Specifically, the first conical tooth meshes with the second conical tooth, the turntable is welded and fixed to the shaft of the second conical tooth, and a crank handle is provided on the outer wall of the turntable near the edge.

[0018] In this invention, the crank handle provides the point of force, which facilitates the rotation of the turntable to enable the second conical tooth to drive the first conical tooth to rotate, thereby enabling the worm gear to rotate and drive the worm wheel to rotate, thus achieving the corresponding oil tank flipping operation.

[0019] It is worth noting that the rotating column and the oil tank are integrally formed. The width of the outer wall of the rotating column is adapted to the width of the inner wall of the slot. A screw hole is opened on the outer wall of the rotating column corresponding to the through hole, and a fixing bolt is provided in the screw hole.

[0020] In this invention, the rotating column is inserted into the corresponding slot on the card holder, and the fixing bolt passes through the through hole and is threaded into the screw hole, so as to realize the stable insertion and installation of the oil tank. The fixing bolt can be removed to facilitate the quick disassembly and assembly of the oil tank.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model features a frame with an oil collection tray and corresponding flipping components installed on support columns. The tray is combined with one of the support columns. With the cooperation of a worm gear and a worm, the first conical tooth at the end of the worm engages with the second conical tooth, causing the crank handle on the turntable to rotate and drive the worm gear to rotate. With the cooperation of two rotating shafts with mounting brackets, the installed oil tank can be flipped. One rotating shaft with a mounting bracket is combined with the worm gear, and the other rotating shaft with a mounting bracket is rotated with another support column. The oil tank is fitted with a rotating column with a screw hole, and the fixing bolt passes through the through hole on the mounting bracket and is threaded into the screw hole, thus achieving a fixed installation of the oil tank and the mounting bracket.

[0023] 2. This utility model achieves overall movement of the frame and fixation of the position after movement by setting self-locking casters. The handle cooperates with the oil collection tray to facilitate the removal, replacement or cleaning of the oil collection tray. The oil tank is equipped with a level gauge to observe the amount of oil inside in real time. The oil pump is used to realize the internal oil pumping. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the fuel tank in the flipped state of this utility model;

[0026] Figure 3 This is a schematic diagram of the combined structure of the frame and oil collection tray of this utility model;

[0027] Figure 4 This is a schematic diagram of the frame and flipping assembly of this utility model;

[0028] Figure 5 This is a schematic diagram of the fuel tank structure of this utility model.

[0029] The meanings of the labels in the diagram are as follows:

[0030] 1. Frame; 10. Mounting slot; 11. Support column;

[0031] 2. Tilting assembly; 20. Pallet; 200. First rotating seat; 201. Second rotating seat; 21. Worm gear; 210. Card holder; 211. Card slot; 212. Through hole; 22. Worm; 220. First conical tooth; 23. Second conical tooth; 24. Turntable;

[0032] 3. Oil collection tray; 30. Handle;

[0033] 4. Self-locking swivel wheels;

[0034] 5. Oil tank; 50. Level gauge; 51. Rotary column; 510. Screw hole; 511. Fixing bolt; 52. Oil pump. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figures 1-5 This embodiment provides a technical solution:

[0037] A high-flow fuel pump test bench includes a frame 1. The lower surface of the frame 1 is provided with self-locking casters 4 near the four corners. The top of the self-locking casters 4 is fixedly connected to the frame 1 by screws.

[0038] In this invention, the cooperation of four self-locking casters 4 facilitates flexible movement of the entire unit. Furthermore, the self-locking casters 4 are equipped with a foot pedal. When the foot pedal is pressed down, the position of the caster is fixed, thus fixing the position of the caster. When movement is required, the foot pedal is moved up to release the fixation of the caster, enabling flexible movement.

[0039] Furthermore, support columns 11 are provided on both sides of the upper surface of the frame 1 near the middle. One of the support columns 11 is provided with a flipping component 2 at its top. The flipping component 2 includes a tray 20 and a worm gear 22 rotatably connected above the tray 20. The tray 20 is welded and fixed to one of the support columns 11. A second rotating seat 201 is symmetrically provided on the upper surface of the tray 20 at the worm gear 22. The worm gear 22 is rotatably connected to the second rotating seat 201. A first rotating seat 200 is provided on the upper surface of the tray 20 below the second conical tooth 23. The two ends of the second conical tooth 23 are rotatably connected to the first rotating seat 200 through a rotating shaft.

[0040] In this invention, the first rotating seat 200 facilitates the limitation of the rotation position of the second conical tooth 23, and the second rotating seat 201 facilitates the limitation of the rotation position of the worm gear 22, thereby increasing the stability of the assembly without affecting the rotational engagement.

[0041] It should be noted that a worm wheel 21 is provided above the worm 22 and is rotatably connected to the support column 11. The worm wheel 21 meshes with the worm 22. The worm wheel 21 is rotatably connected to one of the support columns 11 through a rotating shaft. A retainer 210 is provided at the center of the rotating shaft of the worm wheel 21. A retainer groove 211 is provided on the top of the retainer 210. A through hole 212 is provided on the outer wall of the retainer 210. A retainer 210 is also provided at the top of the other support column 11 corresponding to the rotating column 51.

[0042] In this invention, the worm 22 meshes with the worm wheel 21 to achieve synchronous rotation, and with the cooperation of the rotating shaft, the rotation of the worm wheel 21 drives one of the card holders 210 to rotate and cooperate.

[0043] Furthermore, one end of the worm gear 22 is provided with a first conical tooth 220, and a second conical tooth 23 is provided on one side of the first conical tooth 220. A turntable 24 is provided at the central axis of the second conical tooth 23. The first conical tooth 220 meshes with the second conical tooth 23, and the turntable 24 is welded and fixed to the shaft of the second conical tooth 23. A crank handle is provided on the outer wall of the turntable 24 near the edge.

[0044] In this invention, the crank handle provides a point of force, which facilitates the rotation of the turntable 24 to enable the second conical tooth 23 to drive the first conical tooth 220 to rotate, thereby enabling the worm gear 22 to rotate and drive the worm wheel 21 to rotate, thus achieving the corresponding rotation of the oil tank 5.

[0045] Specifically, a detachable oil tank 5 is provided between the two support columns 11, and an installation groove 10 is provided on the upper surface of the frame 1 near both ends, with an oil collection tray 3 provided in the installation groove 10.

[0046] Secondly, the width of the inner wall of the mounting groove 10 is adapted to the width of the outer wall of the oil collection tray 3, and the top of the oil collection tray 3 is symmetrically provided with handles 30.

[0047] In this utility model, the handle 30 provides a point of leverage, making it convenient to remove, replace or clean the oil collection tray 3. The oil collection tray 3 is inserted into the mounting groove 10 to increase the stability of the assembly.

[0048] It is worth adding that a rotating column 51 is provided at the middle of both sides of the oil tank 5, corresponding to the worm gear 21. A level gauge 50 is also provided on the front side of the oil tank 5 near the side. An oil pump 52 is installed on the top of the oil tank 5, and a regulating valve pipe is provided on the bottom surface of the oil tank 5.

[0049] The level gauge 50, in conjunction with the oil level gauge 50, helps to observe the oil content inside the oil tank 5 in real time, and in conjunction with the oil pump 52, enables the pumping and delivery of oil, thus facilitating the testing of large-flow oil transfer.

[0050] Furthermore, the rotating column 51 and the oil tank 5 are integrally formed. The width of the outer wall of the rotating column 51 is adapted to the width of the inner wall of the slot 211. A screw hole 510 is provided on the outer wall of the rotating column 51 at the position corresponding to the through hole 212, and a fixing bolt 511 is provided in the screw hole 510.

[0051] In this utility model, the rotating column 51 is inserted into the corresponding slot 211 on the corresponding card seat 210, and the fixing bolt 511 passes through the through hole 212 and is threadedly connected to the screw hole 510 to realize the stable insertion and installation of the oil tank 5. The fixing bolt 511 can be disassembled to facilitate the quick disassembly and assembly of the oil tank 5.

[0052] In this embodiment, when the high-flow fuel pump test bench is in use, the support column 11 is first assembled with the frame 1 with the self-locking caster wheel 4. The worm gear 21 is rotatably connected to the second rotating seat 201. The second conical tooth 23 is rotatably connected to the first rotating seat 200 through the rotating shaft. The worm gear 21 with the card seat 210 is rotatably connected to one of the support columns 11. The worm gear 21 meshes with the worm 22. The first conical tooth 220 on the worm 22 meshes with the second conical tooth 23. The turntable 24 with the crank handle is connected to the second conical tooth 23. Then, the rotating shaft with the card seat 210 is rotatably connected to the top of another support column 11. Then, the oil tank 5 with the oil pump 52 and the level gauge 50 is inserted and engaged with the slot 211 on the card seat 210 through the rotating column 51. The fixing bolt 511 passes through the through hole 212 and is threadedly connected to the screw hole 510 to realize the quick installation and engagement of the oil tank 5.

[0053] When the overall position needs to be moved, the pedal on the self-locking caster 4 moves up to release the wheel hub lock and achieve flexible movement. When the position needs to be fixed, the pedal on the self-locking caster 4 moves down to lock the wheel hub and achieve position fixation. When the oil tank 5 needs to be flipped, the crank on the turntable 24 is turned, the second conical tooth 23 rotates and drives the first conical tooth 220 to rotate, which in turn drives the worm gear 22 to rotate the worm wheel 21, thereby flipping the installed oil tank 5 and performing an oil delivery test. The oil pump 52 is started to realize the internal oil delivery. The second conical tooth 23 and the first conical tooth 220, and the worm gear 22 and the worm wheel 21 mesh, and the teeth have self-locking properties. Without external force, the oil tank 5 will not rotate. When the oil tank 5 needs to be disassembled, the fixing bolt 511 is removed, and the rotating column 51 is taken out of the slot 211, which facilitates the quick disassembly and removal or installation of the oil tank 5.

Claims

1. A high-flow-rate fuel pump test bench, comprising a frame (1), characterized in that: The frame (1) has support columns (11) on both sides near the middle of the upper surface. One of the support columns (11) has a flipping component (2) on its top. The flipping component (2) includes a tray (20) and a worm gear (22) rotatably connected above the tray (20). The worm gear (22) has a worm wheel (21) rotatably connected to the support column (11) above it. One end of the worm gear (22) has a first conical tooth (220). A second conical tooth (23) is provided on one side of the first conical tooth (220). A turntable (24) is provided at the central axis of the second conical tooth (23). A detachable oil tank (5) is provided between the two support columns (11). The frame (1) has mounting grooves (10) near both ends. An oil collection tray (3) is provided in the mounting grooves (10). A rotating column (51) is provided at the middle of both sides of the oil tank (5) corresponding to the worm gear (21). A level gauge (50) is also provided on the front side of the oil tank (5) near the side. An oil pump (52) is installed on the top of the oil tank (5). A regulating valve pipe is provided on the bottom surface of the oil tank (5).

2. The high-flow-rate fuel pump test bench according to claim 1, characterized in that: The frame (1) is provided with self-locking casters (4) near the four corners on the lower surface. The top of the self-locking casters (4) is fixedly connected to the frame (1) by screws.

3. The high-flow-rate fuel pump test bench according to claim 1, characterized in that: The width of the inner wall of the mounting groove (10) is adapted to the width of the outer wall of the oil collection tray (3), and the top of the oil collection tray (3) is symmetrically provided with handles (30).

4. The high-flow-rate fuel pump test bench according to claim 1, characterized in that: The pallet (20) is welded and fixed to one of the support columns (11). The upper surface of the pallet (20) is symmetrically provided with a second rotating seat (201) at the worm (22). The worm (22) is rotatably connected to the second rotating seat (201). The upper surface of the pallet (20) is provided with a first rotating seat (200) below the second conical tooth (23). The two ends of the second conical tooth (23) are rotatably connected to the first rotating seat (200) through a rotating shaft.

5. The high-flow-rate fuel pump test bench according to claim 1, characterized in that: The worm wheel (21) meshes with the worm (22). The worm wheel (21) is rotatably connected to one of the support columns (11) through a rotating shaft. A retainer (210) is provided at the center of the rotating shaft of the worm wheel (21). A slot (211) is provided on the top of the retainer (210). A through hole (212) is provided on the outer wall of the retainer (210). A retainer (210) is also provided at the top of the other support column (11) corresponding to the rotating column (51).

6. The high-flow-rate fuel pump test bench according to claim 1, characterized in that: The first conical tooth (220) meshes with the second conical tooth (23), the turntable (24) is welded and fixed to the shaft of the second conical tooth (23), and a crank handle is provided on the outer wall of the turntable (24) near the edge.

7. The high-flow-rate fuel pump test bench according to claim 5, characterized in that: The rotating column (51) and the oil tank (5) are integrally formed. The width of the outer wall of the rotating column (51) is adapted to the width of the inner wall of the slot (211). A screw hole (510) is provided on the outer wall of the rotating column (51) corresponding to the through hole (212). A fixing bolt (511) is provided in the screw hole (510).

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