Fuel pump test bench

Abstract

The utility model discloses a fuel pump test board which comprises a working table, a groove is formed in the center of the top of the working table, an oil supply assembly is arranged on the working table, a supporting plate is arranged in the groove, a bearing plate is arranged above the supporting plate, a limiting assembly is arranged on the supporting plate, and the limiting assembly is arranged on the supporting plate. A collecting assembly capable of collecting oil liquid is arranged on the workbench, the collecting assembly comprises a flow guide plate, an oil outlet pipe, a collecting box, an oil discharging pipe and an electromagnetic valve, the flow guide plate is arranged on the inner bottom wall of the groove, the oil outlet pipe is arranged on the bearing plate, and the collecting box is arranged at the bottom of the workbench and communicated with the interior of the groove. According to the fuel pump detection device, the fuel pump can be conveniently detected by arranging the fuel supply assembly, the fuel pump on the bearing plate can be conveniently limited by arranging the limiting assembly, and the purpose of collecting dripped fuel liquid detected by the fuel pump is achieved by arranging the collecting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pump production, in particular to a fuel pump test bench. Background Art

[0002] Fuel pump is a professional term in the auto parts industry. It is one of the basic components of the fuel injection system of electronic fuel injection vehicles. It is located inside the vehicle's fuel tank. The function of the fuel pump is to suck the fuel from the fuel tank, pressurize it and deliver it to the fuel supply pipe. It cooperates with the fuel pressure regulator to establish a certain fuel pressure. The fuel pump consists of an electric motor, a pressure limiter, and a check valve. After the fuel pump is processed, it needs to be tested on a test bench.

[0003] According to the Chinese patent application number CN202121884381.6, the automobile fuel pump assembly performance test bench includes a base, a first conveyor belt, a second conveyor belt and a fixed platform. The top of the base is equipped with a fixed platform through a mounting bracket, a reserved groove is provided on the top of the fixed platform, a U-shaped plate is welded at the bottom of the fixed platform, and servo electric cylinders are installed on both sides of the top of the U-shaped plate through mounting seats, and the power output ends of the servo electric cylinders are connected to displacement plates; the new type is convenient for quickly clamping and fixing the fuel pump to be tested, has a good stabilizing effect during clamping, and the oil pump is convenient to be pumped through the pipeline when working. The oil collected in the collection tank is sucked in, and then the oil is transported to the return tank through the return oil pipe, so that the oil used for testing can be recycled. When testing multiple groups of fuel pumps, a conveying mechanism is provided during loading and unloading, which can facilitate flow testing and is suitable for wide promotion and use. When testing the fuel pump, it is necessary to inject oil into it for testing. When disassembling and assembling the oil pipe at the oil inlet and outlet, oil will drip. If the dripping oil is not handled in time, it will cause oil waste. Therefore, a fuel pump test bench is proposed to solve the above problem. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a fuel pump test bench, which has the advantages of easy collection, etc., and solves the problem that when the oil pipe is disassembled and assembled at the oil inlet and outlet ends, oil will drip and the dripping oil will be wasted if it is not handled in time.

[0006] (II) Technical solution

[0007] The utility model provides a fuel pump test bench, comprising a workbench, a groove is provided at the top center of the workbench, an oil supply component is provided on the workbench, a support plate is provided inside the groove, a carrier plate is provided above the support plate, a limit component is provided on the support plate, and a collection component capable of collecting oil is provided on the workbench.

[0008] Preferably, the oil supply assembly includes an oil return tank, a collecting tank, a connecting flange, an oil pump and an oil return pipe. The oil return tank is arranged at the left end of the top of the workbench, the collecting tank is arranged at the right end of the top of the workbench, the connecting flanges are respectively arranged on the oil return tank and the collecting tank, the oil pump is arranged on the front side of the collecting tank, the oil return pipe is arranged at the oil return tank and the oil outlet end of the oil pump, and the oil inlet end of the oil pump is connected to the collecting tank through the oil return pipe.

[0009] Preferably, the limiting assembly includes a dual-axis motor, a threaded rod, a kit and a clamp, the dual-axis motor is arranged at the bottom of the support plate, the threaded rod is coaxially connected with the output shaft of the dual-axis motor through a coupling, the kit is sleeved on the threaded rod, and the clamp is arranged on the kit.

[0010] Preferably, there are two threaded rods, and the threads on the two threaded rods are symmetrically distributed.

[0011] Preferably, the collecting assembly includes a guide plate, an oil outlet pipe, a collecting box, an oil drain pipe and a solenoid valve, the guide plate is arranged on the inner bottom wall of the groove, the oil outlet pipe is arranged on the supporting plate, the collecting box is arranged at the bottom of the workbench and is connected with the interior of the groove, the oil drain pipe is arranged at the bottom of the collecting box, and the solenoid valve is arranged on the oil drain pipe.

[0012] Preferably, the guide plate is funnel-shaped.

[0013] Compared with the prior art, the above-mentioned technical scheme of the utility model has the following beneficial technical effects: the fuel pump test bench, by providing an oil supply component, facilitates the detection of the fuel pump, by providing a limiting component, facilitates the limit function of the fuel pump on the support plate, and by providing a collecting component, the oil dripping from the fuel pump can be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a fuel pump test bench.

[0015] Figure 2 This is an enlarged view of point A in a fuel pump test bench proposed by the utility model.

[0016] Figure 3 This is a right view of a limit assembly in a fuel pump test bench proposed by the utility model.

[0017] Figure numerals: 1. workbench; 2. groove; 3. oil supply assembly; 31. oil return tank; 32. collecting tank; 33. connecting flange; 34. oil pump; 35. oil return pipe; 4. support plate; 5. support plate; 6. limit assembly; 61. dual-axis motor; 62. threaded rod; 63. kit; 64. splint; 7. collecting assembly; 71. guide plate; 72. oil outlet pipe; 73. collecting box; 74. oil drain pipe; 75. solenoid valve. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0019] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model 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 the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, welding, riveting, bonding, etc., or a detachable connection, threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0021] like Figure 1-3 As shown, a fuel pump test bench proposed by the utility model comprises a workbench 1, a groove 2 is provided at the top center of the workbench 1, an oil supply assembly 3 is provided on the workbench 1, a support plate 4 is provided inside the groove 2, a support plate 5 is provided above the support plate 4, a limit assembly 6 is provided on the support plate 4, and a collection assembly 7 for collecting oil is provided on the workbench 1.

[0022] In this embodiment, by providing an oil supply component 3, it is convenient to detect the fuel pump, by providing a limiting component 6, it is convenient to limit the fuel pump on the support plate 5, and by providing a collecting component 7, the dripping oil detected by the fuel pump can be collected.

[0023] In an optional embodiment, the oil supply assembly 3 includes an oil return tank 31, a collecting tank 32, a connecting flange 33, an oil pump 34 and an oil return pipe 35. The oil return tank 31 is arranged at the left end of the top of the workbench 1, and the collecting tank 32 is arranged at the right end of the top of the workbench 1. The oil inlet end of the collecting tank 32 is provided with a liquid pressure detector, and the liquid pressure detector is convenient for detecting the pressure of the oil discharged by the fuel pump. The connecting flange 33 is respectively arranged on the oil return tank 31 and the collecting tank 32, the oil pump 34 is arranged on the front side of the collecting tank 32, and the oil return pipe 35 is arranged on the oil return tank 31 and the oil pump 34. The oil inlet end of the oil pump 34 is connected to the collecting tank 32 through the oil return pipe 35. The limiting assembly 6 includes a dual-axis motor 61, a threaded rod 62, a kit 63 and a clamping plate 64. The dual-axis motor 61 is arranged at the bottom of the carrier plate 5, and the threaded rod 62 is connected to the dual-axis motor 6 The output shaft of 1 is coaxially connected through a coupling, the number of threaded rods 62 is two, and the threads on the two threaded rods 62 are symmetrically distributed, so that the clamping plate 64 plays a role of moving to the opposite side or the opposite side, the set 63 is sleeved on the threaded rod 62, and the clamping plate 64 is arranged on the set 63. The collecting component 7 includes a guide plate 71, an oil outlet pipe 72, a collecting box 73, an oil drain pipe 74 and a solenoid valve 75. The guide plate 71 is arranged on the inner bottom wall of the groove 2. The guide plate 71 is funnel-shaped and plays a role in guiding the dripping oil. The oil outlet pipe 72 is arranged on the carrier plate 5, the collecting box 73 is arranged at the bottom of the workbench 1 and is connected with the inside of the groove 2. The oil drain pipe 74 is arranged at the bottom of the collecting box 73, and the solenoid valve 75 is arranged on the oil drain pipe 74. The oil drain pipe 74 is convenient for discharging the collected oil, and the solenoid valve 75 is convenient for controlling the oil drain pipe 74 to discharge the oil.

[0024] Working principle:

[0025] When the fuel pump needs to be limited, the fuel pump to be tested is placed on the carrier plate 5, and then the dual-axis motor 61 is started, and the threaded rod 62 drives the clamping plate 64 on the kit 63 to move to the opposite side, so as to complete the clamping and limiting of the fuel pump. When the fuel pump needs to be tested, the oil inlet end of the fuel pump is connected to the return oil tank 31 through the connecting flange 33, and the oil outlet end of the fuel pump is connected to the collection tank 32 through the connecting flange 33, and then the oil in the return oil tank 31 is injected into the fuel pump, and then the oil is discharged from the oil outlet end. The oil flows into the collecting tank 32, and the oil pressure discharged by the fuel pump is detected by a liquid pressure detector in the middle. Then, the oil pump 34 is started to transport the oil in the collecting tank 32 to the oil return tank 31 through the oil return pipe 35, so as to complete the oil circulation. When it is necessary to collect the oil dripping during the detection, the oil dripping from the inside of the carrier plate 5 flows to the inside of the groove 2 through the oil outlet pipe 72, and then the oil in the groove 2 flows to the inside of the collecting box 73 through the guide plate 71, so that the dripping oil is collected.

[0026] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A fuel pump test bench, comprising a workbench (1), a groove (2) being provided at the top center of the workbench (1), a fuel supply assembly (3) being provided on the workbench (1), a support plate (4) being provided inside the groove (2), a support plate (5) being provided above the support plate (4), and a limit assembly (6) being provided on the support plate (4), characterized in that: The workbench (1) is provided with a collecting component (7) capable of collecting oil.

2. A fuel pump test bench according to claim 1, characterized in that: The oil supply assembly (3) comprises an oil return tank (31), a collecting tank (32), a connecting flange (33), an oil pump (34) and an oil return pipe (35); the oil return tank (31) is arranged at the left end of the top of the workbench (1); the collecting tank (32) is arranged at the right end of the top of the workbench (1); the connecting flange (33) is arranged on the oil return tank (31) and the collecting tank (32), respectively; the oil pump (34) is arranged on the front side of the collecting tank (32); the oil return pipe (35) is arranged at the oil outlet ends of the oil return tank (31) and the oil pump (34); and the oil inlet end of the oil pump (34) is connected to the collecting tank (32) through the oil return pipe (35).

3. A fuel pump test bench according to claim 1, characterized in that: The limit assembly (6) comprises a dual-axis motor (61), a threaded rod (62), a sleeve (63) and a clamp (64); the dual-axis motor (61) is arranged at the bottom of the support plate (5); the threaded rod (62) and the output shaft of the dual-axis motor (61) are coaxially connected via a coupling; the sleeve (63) is sleeved on the threaded rod (62); and the clamp (64) is arranged on the sleeve (63).

4. A fuel pump test bench according to claim 3, characterized in that: The number of the threaded rods (62) is two, and the threads on the two threaded rods (62) are symmetrically distributed.

5. A fuel pump test bench according to claim 1, characterized in that: The collecting assembly (7) comprises a guide plate (71), an oil outlet pipe (72), a collecting box (73), an oil drain pipe (74) and a solenoid valve (75); the guide plate (71) is arranged on the inner bottom wall of the groove (2); the oil outlet pipe (72) is arranged on the support plate (5); the collecting box (73) is arranged at the bottom of the workbench (1) and is connected to the inside of the groove (2); the oil drain pipe (74) is arranged at the bottom of the collecting box (73); and the solenoid valve (75) is arranged on the oil drain pipe (74).

6. A fuel pump test bench according to claim 5, characterized in that: The guide plate (71) is in a funnel shape.

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