Oil injector stroke detection mechanism

Abstract

The utility model provides an oil injector stroke detection mechanism, relates to the technical field of oil injector stroke detection, and aims to solve the problems of low detection efficiency and low detection precision due to the fact that a worker holds a detection tool by hand to carry out manual detection on the stroke detection of an existing oil injector. A fuel injector to be tested is installed in the support, a frame is installed on the right side of the support, a tappet capable of sliding up and down is installed on the fuel injector to be tested, a test pen is installed on the top of the support, a downward-pressing air cylinder is installed on the frame, a connecting block is installed at the output end of the downward-pressing air cylinder, and a measuring head is installed in the test pen. The measuring head is of a structure capable of sliding up and down, and the measuring head of the measuring pen is installed in the connecting block through a fastener.

Description

Technical Field

[0001] This utility model relates to the field of fuel injector stroke detection technology, and in particular to a fuel injector stroke detection mechanism. Background Technology

[0002] The fuel injector is one of the core components of a diesel engine. It precisely controls the amount of fuel injected by receiving injection pulse commands from the engine electronic control unit (ECU). The injector typically contains components such as an electromagnetic coil, a plunger, and a valve body. When the electromagnetic coil is energized, it generates a magnetic field that causes the plunger to overcome the spring force and be lifted, the valve body to move away from the valve seat, and fuel is injected from the nozzle under pressure. When the electromagnetic coil is de-energized, the magnetic field disappears, the plunger moves downward under the spring force, the valve body closes the nozzle, and fuel injection stops.

[0003] The current method of manually inspecting the stroke of fuel injectors using handheld measuring tools results in low efficiency and low accuracy. Therefore, it is of great importance to design a fuel injector stroke inspection mechanism to solve these technical problems. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the stroke detection of existing fuel injectors is carried out manually by workers using handheld measuring tools, which results in low detection efficiency and low detection accuracy. Therefore, this invention proposes a fuel injector stroke detection mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an injector stroke detection mechanism, comprising a working seat, a bracket mounted on the working seat, an injector to be tested mounted in the bracket, a frame mounted on the right side of the bracket, a push rod that can slide up and down mounted on the injector to be tested, a measuring pen mounted on the top of the bracket, a pressing cylinder mounted on the frame, a connecting block mounted on the output end of the pressing cylinder, a probe mounted in the measuring pen, the probe having a sliding structure, and the probe of the measuring pen being mounted in the connecting block by fasteners.

[0006] Preferably, a limiting frame is also installed between the bracket and the frame, and a limiting cylinder is installed on the work seat, with the output end of the limiting cylinder connected to the limiting frame.

[0007] Preferably, a guide sleeve is fixedly connected to the limiting frame, a guide post is installed on the limiting cylinder, the guide sleeve and the guide post are fitted together, and the end of the guide post is fixedly connected to the limiting cylinder.

[0008] Preferably, a heavy-duty connector is installed on the workbench, which is used to supply air and power to the relevant cylinders and other components in the testing mechanism.

[0009] Preferably, the workbench is also equipped with a tri-color light, and the tri-color light is also equipped with a control switch.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, during use, a bracket structure is installed on the work stand, and the injector to be tested is installed on the bracket. At the same time, a frame structure is installed on one side of the bracket, and a downward pressure cylinder is installed on the frame to drive the test pen downward in conjunction with the connecting block to detect the stroke of the injector to be tested. Compared with the conventional method of manual testing by hand-held measuring tools, the technical solution adopted by this utility model can realize semi-automatic testing of injectors, reduce the labor intensity of workers, improve the accuracy of injector stroke detection, and the overall structure is compact and easy for workers to install and maintain. It solves the problem that the existing injector stroke detection is carried out manually by hand-held measuring tools, which has low detection efficiency and low detection accuracy.

[0012] 2. In this utility model, during use, the heavy-duty connector supplies power and air to the relevant cylinders and components in the entire detection mechanism, and the cooperation between the control switch and the three-color lamp facilitates the operation control of the injector stroke detection. Attached Figure Description

[0013] Figure 1 This is an overall diagram of the injector stroke detection mechanism of this utility model;

[0014] Figure 2 This is a schematic diagram from the rear view of the injector stroke detection mechanism of this utility model.

[0015] Legend: 1. Working seat; 2. Bracket; 3. Injector to be tested; 301. Taper; 4. Frame; 5. Test pen; 501. Downward cylinder; 502. Connecting block; 503. Probe; 504. Limit bracket; 505. Limit cylinder; 6. Guide sleeve; 601. Guide post; 602. Heavy-duty connector; 603. Three-color light; 604. Control switch. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] This utility model provides a fuel injector stroke detection mechanism, including a working base 1, a bracket 2 mounted on the working base 1, a fuel injector 3 to be tested mounted in the bracket 2, a frame 4 mounted on the right side of the bracket 2, a push rod 301 that can slide up and down mounted on the fuel injector 3, a measuring pen 5 mounted on the top of the bracket 2, a pressure cylinder 501 mounted on the frame 4, a connecting block 502 mounted on the output end of the pressure cylinder 501, and a measuring head 503 mounted in the measuring pen 5. The measuring head 503 has a vertically sliding structure, and the measuring head 503 of the measuring pen 5 is connected by a tight... The firmware is installed in the connecting block 502. A limit frame 504 is also installed between the bracket 2 and the frame 4. A limit cylinder 505 is installed on the working seat 1. The output end of the limit cylinder 505 is connected to the limit frame 504. A guide sleeve 6 is fixedly connected to the limit frame 504. A guide post 601 is installed on the limit cylinder 505. The guide sleeve 6 and the guide post 601 fit together. The end of the guide post 601 is fixedly connected to the limit cylinder 505. The guide post 601 and the guide sleeve 6 cooperate with each other to guide the limit frame 504 when it slides up and down.

[0019] In actual use, the injector stroke testing mechanism installs the injector under test 3 in the bracket 2. Then, the heavy-duty connector 602 supplies power and air to the relevant cylinders and components in the entire testing mechanism. The limit cylinder 505 drives the limit frame 504 downwards, limiting the injector under test 3 in the bracket 2. As the limit frame 504 slides up and down, the guide sleeve 6 slides within the guide post 601, guiding the upward and downward movement of the limit frame 504. The injector under test 3 is then installed in the bracket 2. The system is in operation, and then the operator presses the control button to start the injector stroke measurement. The downward-pressing cylinder 501 drives the output end, causing the connecting block 502 to descend. Since the probe 503 of the measuring pen 5 is mounted on the connecting block 502 via fasteners, the connecting block 502 descends until the probe 503 abuts against the push rod 301. The measuring pen 5 is model GTR-A50. The downward-pressing cylinder 501 continues to operate, at which point the probe 503 presses the push rod 301 down into the injector. The measuring pen 5 collects the measured data in real time. According to the data detected by the test pen 5, it is connected to the computer in the background data processing terminal. The real-time detected data is compared with the qualified data. If it does not meet the requirements, the computer in the background data processing terminal sends a working instruction to the tri-color light 603. For injectors that do not meet the requirements, the tri-color light 603 will directly light up and alarm. At this time, the operator operates the control switch 604 to drive the relevant detection components and cylinders to reset. Then, the operator takes out the injector to be tested and installs the injector to be tested 3 on the bracket 2 structure installed on the work base 1. At the same time, the frame 4 structure is installed on one side of the bracket 2, and the downward cylinder 501 is installed on the frame 4 to drive the test pen 5 downward in conjunction with the connecting block 502 to detect the stroke of the injector to be tested 3. Compared with the conventional method of manual detection by the operator holding the inspection tool, the technical solution adopted by this utility model can realize the semi-automatic detection of injectors, reduce the labor intensity of the operator, improve the accuracy of injector stroke detection, and the overall structure is compact and easy for the operator to install and maintain.

[0020] Example 1

[0021] like Figure 1-2 As shown, a heavy-duty connector 602 is installed on the workbench 1. The heavy-duty connector 602 is used to supply air and power to the relevant cylinders and other components in the detection mechanism. A tri-color lamp 603 is also installed on the workbench 1, and a control switch 604 is also installed on the tri-color lamp 603.

[0022] The overall effect of Embodiment 1 is that, during use, the heavy-duty connector 602 supplies power and air to the relevant cylinders and components in the entire detection mechanism, and the cooperation between the control switch 604 and the tri-color lamp 603 facilitates the operation control of the injector stroke detection.

[0023] Working principle: The injector under test is installed in the bracket. Then, the heavy-duty connector supplies power and air to the relevant cylinders and components in the entire testing mechanism. The limit cylinder drive output end moves the limit frame downwards, limiting the injector under test within the bracket. As the limit frame slides up and down, the guide sleeve slides within the guide post, guiding the movement of the limit frame. Once the injector under test is installed and limited in the bracket, the operator presses the control button to begin the injector stroke measurement. The downward-pressing cylinder drive output end moves the connecting block downwards. Because the probe head is mounted on the connecting block via fasteners, the... The probe descends until it contacts the push rod. The probe model is GTR-A50. The cylinder continues to operate, and the probe pushes the push rod into the injector. The probe collects test data in real time and connects the data to the computer in the background data processing terminal. The real-time test data is compared with the qualified data. If it does not meet the requirements, the computer in the background data processing terminal sends a working command to the three-color indicator. For injectors that do not meet the requirements, the three-color indicator will light up directly. At this time, the operator operates the control switch to drive the relevant detection components and cylinder to reset, and then the operator removes the injector under test.

Claims

1. An injection stroke detection mechanism, comprising a working seat (1) on which a bracket (2) is installed, and an injection valve (3) to be detected is installed in the bracket (2), characterized in that, The right side of the support (2) is provided with a frame (4), the to-be-tested oil injector (3) is provided with a up-and-down slidable tappet (301), the top of the support (2) is provided with a measuring pen (5), the frame (4) is provided with a pressing cylinder (501), the output end of the pressing cylinder (501) is provided with a connecting block (502), the measuring pen (5) is provided with a measuring head (503), the measuring head (503) is a up-and-down slidable structure, the measuring head (503) of the measuring pen (5) is installed in the connecting block (502) through a fastener.

2. The fuel injector stroke detection mechanism of claim 1, wherein The support (2) and the frame (4) are further provided with a limiting frame (504), the working seat (1) is provided with a limiting cylinder (505), the output end of the limiting cylinder (505) is connected with the limiting frame (504).

3. The fuel injector stroke detection mechanism of claim 2, wherein The limiting frame (504) is fixedly connected with a guide sleeve (6), the limiting cylinder (505) is provided with a guide column (601), the guide sleeve (6) and the guide column (601) are matched with each other, and the tail end of the guide column (601) is fixedly connected with the limiting cylinder (505).

4. The fuel injector stroke detection mechanism of claim 1, wherein The working seat (1) is provided with a heavy load connector (602), and the heavy load connector (602) is used for supplying gas and power to related cylinders and other components in the detection mechanism.

5. The fuel injector stroke detection mechanism of claim 1, wherein, The working seat (1) is further provided with a three-color lamp (603), and the three-color lamp (603) is further provided with a control switch (604).

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