Intelligent detection equipment for electronic fuel injection sensor

Abstract

The utility model relates to intelligent detection equipment for an electronic fuel injection sensor. The intelligent detection equipment comprises a control host and an operation simulation device, the operation simulation device comprises a workbench used for placing an electronic injection sensor to be tested, a base located below the workbench, and a lifting pressing mechanism located above the workbench. A rotating shaft and a rotating shaft driving assembly are arranged on the base; the workbench is provided with a through hole and a passage, the through hole is used for allowing the end of the rotating shaft to penetrate out and be connected with a throttle opening detection opening of the electronic injection sensor, and the passage is used for communicating an air hole of the electronic injection sensor with the vacuum pump; control keys and a display screen are arranged on the control host, and the control host is electrically connected with the rotating shaft driving assembly, the vacuum pump and the electronic injection sensor. According to the utility model, the performance detection of the electronic injection sensor can be realized by simulating the operation scene of the electronic injection sensor, acquiring and displaying the angle data, the pressure data and the temperature data measured by the electronic injection sensor and comparing the test quantity with the preset quantity.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor detection technical field, concretely relates to intelligent detection equipment of electric injection sensor. BACKGROUND

[0002] Electric injection sensor includes throttle position sensor, intake pressure sensor, intake temperature sensor, is respectively used in detecting the opening of throttle, the detection of intake pressure and temperature, and the accurate acquisition of these parameters is crucial for the operation of engine. In order to ensure that electric injection sensor can accurately, reliably provide the key data required for engine operation, the detection signal accuracy of electric injection sensor needs to be tested, and in view of this, the utility model provides an intelligent detection equipment of electric injection sensor to realize the performance detection of electric injection sensor. SUMMARY

[0003] The utility model discloses a kind of intelligent detection equipment of electric injection sensor, to realize the performance detection of electric injection sensor.

[0004] To achieve the above object, the technical scheme of the utility model is: an intelligent detection equipment of electric injection sensor, including control host computer and running simulation device;

[0005] The running simulation device includes a workbench for placing the electric injection sensor to be tested, a base located below the workbench and a lifting and pressing mechanism located above the workbench.

[0006] The base is provided with a rotating shaft and a rotating shaft driving assembly. The workbench is provided with a through hole and a passage. The through hole is used for the end of the rotating shaft to pass through and connect the throttle opening detection port of the electric injection sensor. The passage is used to connect the air hole of the electric injection sensor and the vacuum pump.

[0007] The control host computer is electrically connected with the rotating shaft driving assembly, the vacuum pump and the electric injection sensor.

[0008] Preferably, the lifting and pressing mechanism includes a pressing block and a cylinder or a hydraulic cylinder connected above the pressing block. The piston rod of the cylinder or the hydraulic cylinder is connected with the pressing block to drive the pressing block to lift and lower. The cylinder body of the cylinder or the hydraulic cylinder is fixed above the workbench through a support frame. The cylinder or the hydraulic cylinder is controlled to lift and lower through a control valve.

[0009] Preferably, the workbench is further provided with an avoiding hole, and the position of the avoiding hole corresponds to the temperature detection structure on the electric injection sensor.

[0010] Preferably, the workbench is further provided with an electric injection sensor limiting structure; the limiting structure comprises a limiting threaded hole arranged on the workbench, the position of the limiting threaded hole corresponds to a screw fixing hole groove on the electric injection sensor, and the electric injection sensor is fixed on the workbench through the screw.

[0011] Preferably, the workbench is further provided with an electric injection sensor limiting structure; the limiting structure comprises a limiting protrusion arranged on the workbench, the position of the limiting protrusion corresponds to a screw fixing hole groove on the electric injection sensor, and when the screw fixing hole groove of the electric injection sensor is placed on the workbench and is aligned with the limiting protrusion, the limiting protrusion passes through the screw fixing hole groove to limit the electric injection sensor.

[0012] Preferably, the rotating shaft driving assembly comprises a driver, a stepping motor and a speed reducer, and the driver is electrically connected with the control host.

[0013] Preferably, the end of the rotating shaft is a rectangular plug, which is matched with a throttle opening degree detection rectangular slot on the electric injection sensor.

[0014] Preferably, the two ports of the channel are respectively located on the upper surface and the side surface of the workbench; the position of the upper surface port corresponds to the air hole of the electric injection sensor, and the side surface port is connected with the vacuum pump through a pipeline.

[0015] Preferably, the vacuum pump is further provided with a vacuum degree detector, and the vacuum degree detector is electrically connected with the control host.

[0016] Preferably, the control host is connected with a signal interface through a signal line, the signal interface is matched with a signal transmission port of the electric injection sensor, so that the control host signal interface and the electric injection sensor signal transmission port are plugged.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model discloses a rotating shaft and a rotating shaft driving assembly simulate the rotation of the throttle shaft, a channel connected with the vacuum pump simulates the intake pressure, thereby providing a simulation running scene of the electric injection sensor, and the angle data, pressure data and temperature data measured by the electric injection sensor are acquired and displayed, and the performance detection of the electric injection sensor can be realized by comparing the test quantity with the preset quantity. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the detection equipment of one perspective of the utility model;

[0020] Figure 2 It is the three-dimensional structure schematic diagram of another perspective of the detection equipment of the utility model;

[0021] Figure 3This is a cross-sectional view of the testing equipment of this utility model;

[0022] Figure 4 This is a schematic diagram of the principle of the testing equipment of this utility model. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-4 The technical solution of this utility model will be described in detail below.

[0024] This utility model proposes an intelligent detection device for electronic fuel injection sensors, including a control host and a running simulation device;

[0025] The operation simulation device includes a workbench 1 for placing the electronic fuel injection sensor under test, a base 5 located below the workbench 1, and a lifting and pressing mechanism 2 located above the workbench 1; the base 5 is provided with a rotating shaft 7 and a rotating shaft drive assembly to simulate the rotation of the throttle shaft; the workbench 1 is provided with a through hole 3 and a passage 9, the through hole 3 is used for the rotating shaft end 10 to pass through and connect to the throttle opening detection port of the electronic fuel injection sensor, and the passage 9 is used to connect the air port of the electronic fuel injection sensor to the vacuum pump;

[0026] The control host is equipped with control keys and a display screen, and is electrically connected to the shaft drive assembly, vacuum pump and electronic fuel injection sensor; it is used to control the shaft drive assembly and vacuum pump to simulate the operating scenario of the electronic fuel injection sensor, and to display the angle, pressure and temperature data measured by the electronic fuel injection sensor.

[0027] The lifting and pressing mechanism 2 includes a pressing block 6 and a cylinder or hydraulic cylinder connected above the pressing block 6; the piston rod of the cylinder or hydraulic cylinder is connected to the pressing block 6 to drive the pressing block 6 to lift and lower, and the cylinder body of the cylinder or hydraulic cylinder is fixed above the worktable 1 by a support frame; thus, during the detection process of the electronic fuel injection sensor, the cylinder or hydraulic cylinder drives the pressing block 6 to press down on the upper surface of the electronic fuel injection sensor to fix the electronic fuel injection sensor; in order to avoid damage to the electronic fuel injection sensor, the pressing block 6 can be made of rubber; the lifting and lowering of the cylinder or hydraulic cylinder is controlled by a control valve.

[0028] Since the contact surface between the electronic fuel injection sensor and the worktable 1 is provided with a columnar convex temperature detection structure, in order to ensure the stable placement of the electronic fuel injection sensor during the detection process, the worktable 1 is also provided with a clearance hole 11, and the position of the clearance hole 11 corresponds to the temperature detection structure on the electronic fuel injection sensor; wherein, the temperature detection structure of the electronic fuel injection sensor detects the ambient temperature and displays the temperature data on the control host, so as to facilitate the subsequent judgment of the accuracy of the intake air temperature detection of the electronic fuel injection sensor based on the measured temperature data and the actual ambient temperature.

[0029] The workbench 1 is further provided with an electric injection sensor limiting structure; optionally, the limiting structure comprises a limiting threaded hole 12 arranged on the workbench 1, the position of the limiting threaded hole 12 corresponds to a screw fixing hole groove on the electric injection sensor, and the electric injection sensor is fixed on the workbench 1 by a screw; optionally, the limiting structure comprises a limiting protrusion arranged on the workbench 1, the position of the limiting protrusion corresponds to the screw fixing hole groove on the electric injection sensor, so that when the screw fixing hole groove of the electric injection sensor is placed on the workbench 1 and is aligned with the limiting protrusion, the limiting protrusion passes through the screw fixing hole groove to limit the electric injection sensor.

[0030] The rotation shaft driving assembly comprises a driver, a stepping motor and a speed reducer, the driver is electrically connected with the control host; the driver rotates the stepping motor according to the control signal of the control host, and then controls the rotation shaft 7 to rotate by a preset angle through the speed reducer, so as to simulate the throttle opening of the electric injection sensor, and display the angle data measured by the electric injection sensor on the control host, so as to facilitate subsequent judgment of the accuracy of the throttle opening detection of the electric injection sensor according to the preset angle and the measured angle data.

[0031] The end portion 10 of the rotation shaft is a rectangular plug, which is matched with a throttle opening detection rectangular slot on the electric injection sensor.

[0032] The two ports of the channel 9 are respectively located on the upper surface and the side surface of the workbench 1; wherein the position of the upper surface port 8 corresponds to the air hole of the electric injection sensor, and the side surface port 4 is connected with the vacuum pump through a pipeline.

[0033] The vacuum pump is further provided with a vacuum degree detector, the vacuum degree detector is electrically connected with the control host, so as to realize the display of the vacuum degree on the control host; the air in the air hole of the electric injection sensor is pumped by the vacuum pump to simulate the intake pressure, and the vacuum degree and the pressure data measured by the electric injection sensor are displayed on the control host, so as to facilitate subsequent comprehensive judgment of the accuracy of the intake pressure detection of the electric injection sensor according to the vacuum degree and the measured pressure data.

[0034] The control host is connected with a signal interface through a signal line, the signal interface is matched with the signal transmission port of the electric injection sensor, so as to realize the plug connection of the signal interface of the control host and the signal transmission port of the electric injection sensor, thereby transmitting the detection data of the electric injection sensor to the control host and displaying.

[0035] The above is a preferred embodiment of the present application, any change made according to the technical scheme of the present application, as long as the function generated does not exceed the scope of the technical scheme of the present application, belongs to the protection scope of the present application.

Claims

1. An intelligent detection device for electronic fuel injection sensors, characterized in that, Includes the control host and the operation simulation device; The operation simulation device includes a worktable for placing the electronic fuel injection sensor under test, a base located below the worktable, and a lifting and pressing mechanism located above the worktable. The base is provided with a rotating shaft and a rotating shaft drive assembly; the worktable is provided with a through hole and a passage, the through hole is used for the rotating shaft end to pass through and connect to the throttle opening detection port of the electronic fuel injection sensor, and the passage is used to connect the electronic fuel injection sensor air port and the vacuum pump. The control host is equipped with control keys and a display screen, and is electrically connected to the shaft drive assembly, vacuum pump, and electronic fuel injection sensor.

2. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The lifting and pressing mechanism includes a pressing block and a cylinder or hydraulic cylinder connected above the pressing block; the piston rod of the cylinder or hydraulic cylinder is connected to the pressing block to drive the pressing block to lift and lower, and the cylinder body of the cylinder or hydraulic cylinder is fixed above the worktable by a support frame; the lifting and lowering of the cylinder or hydraulic cylinder is controlled by a control valve.

3. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The workbench is also provided with clearance holes, and the position of the clearance holes corresponds to the temperature detection structure on the electronic fuel injection sensor.

4. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The worktable is also provided with an electronic fuel injection sensor limiting structure; the limiting structure includes a limiting threaded hole on the worktable, the position of which corresponds to the screw fixing hole groove on the electronic fuel injection sensor, so as to fix the electronic fuel injection sensor to the worktable by screws.

5. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The worktable is also provided with an electronic fuel injection sensor limiting structure; the limiting structure includes a limiting protrusion on the worktable, the position of the limiting protrusion corresponding to the screw fixing hole groove on the electronic fuel injection sensor, so that when the screw fixing hole groove of the electronic fuel injection sensor is aligned with the limiting protrusion and placed on the worktable, the limiting protrusion passes through the screw fixing hole groove to achieve the limiting of the electronic fuel injection sensor.

6. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The shaft drive assembly includes a driver, a stepper motor, and a reducer, and the driver is electrically connected to the control host.

7. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The end of the rotating shaft is a rectangular plug, which is adapted to the rectangular slot for throttle opening detection on the electronic fuel injection sensor.

8. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The two ports of the passage are located on the upper surface and the side of the worktable, respectively; the upper surface port is located corresponding to the air hole of the electronic injection sensor, and the side port is connected to the vacuum pump through a pipe.

9. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The vacuum pump is also equipped with a vacuum level detector, which is electrically connected to the control host.

10. The intelligent detection device for electronic fuel injection sensors according to claim 1, characterized in that, The control host is connected to a signal interface via a signal line. The signal interface is adapted to the signal transmission port of the electronic fuel injection sensor to realize the connection between the control host signal interface and the electronic fuel injection sensor signal transmission port.

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