An injector protrusion height measuring device

Abstract

The present invention provides an injector protrusion height measuring device, which includes a test bracket. An installation position for installing a cylinder head to be tested is provided on the test bracket. An injector is provided on the cylinder head to be tested. A laser emitter corresponding to the protrusion of the injector is provided on one side of the test bracket, and a laser energy meter corresponding to the laser emitter is provided on the other side of the test bracket. Beneficial effects of the present invention: The laser emitter emits laser light to irradiate the protrusion of the injector. The laser energy meter measures the laser energy blocked by the protrusion of the injector, calculates the difference between the laser energy emitted by the laser emitter and the laser energy after blocking, draws a comparison table of the energy difference and the injector protrusion height, and determines whether the injector protrusion height is qualified through the comparison table. The measurement process is simple, the measurement accuracy is high, and the work efficiency and the injector installation quality are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of engine injector installation, and in particular relates to a measuring device for the protruding height of an injector. Background Art

[0002] The injector is one of the important components in the fuel supply system of a diesel engine. The protruding height of the injector, as a key parameter, plays a decisive role in the overall performance and emissions of the diesel engine.

[0003] The protruding height of the injector affects the mixing process of the fuel spray and air in the engine combustion chamber and the distribution of the combustible mixture in the combustion chamber. If the protruding height of the injector is relatively large, the fuel spray will directly hit the bottom of the combustion chamber, resulting in fuel waste, combustion carbon deposition, and even damage to the piston top. On the contrary, if the protruding height of the injector is relatively small, the cylinder head will block part of the fuel spray cone angle, resulting in more fuel existing at the top of the combustion chamber, which will also cause insufficient mixing of fuel and air, thereby affecting the power performance, economy, and emissions of the whole machine.

[0004] Generally, the protruding height of the injector can be controlled by adjusting the gasket between the injector and the cylinder head or adjusting the tightening torque of the injector compression nut, and a depth gauge (or micrometer) is used for measurement. However, during the assembly process, since there are many parts affecting the protruding height of the injector and the control of adjusting the gasket and tightening torque is highly subjective; the protruding height needs to be measured after each adjustment, and the measurement accuracy using a depth gauge (or micrometer) is low, and the test efficiency is low. Summary of the Invention

[0005] In view of this, the present invention aims to provide a measuring device for the protruding height of an injector in order to solve at least one of the above partial technical problems.

[0006] To achieve the above object, the technical solution of the present invention is realized as follows:

[0007] The first aspect of the present invention provides a measuring device for the protruding height of an injector, including a test bracket. An installation position for installing a cylinder head to be tested is provided on the test bracket. An injector is provided on the cylinder head to be tested. A laser emitter corresponding to the protruding part of the injector is provided on one side of the test bracket, and a laser energy meter corresponding to the laser emitter is provided on the other side of the test bracket.

[0008] Further, the laser emitter is a CO2 laser.

[0009] Further, the laser energy meter includes an energy probe and a controller. The energy probe corresponds to the position of the laser emitter, and the energy probe is electrically connected to the controller.

[0010] Further, the laser energy meter further includes a warning light, and the warning light is electrically connected to the controller.

[0011] Further, a focusing lens is provided between the laser emitter and the energy probe.

[0012] Further, the cylinder head is provided with a mounting hole, the fuel injector is installed inside the mounting hole, a gasket is provided between the fuel injector and the bottom end of the mounting hole, a pressing plate is correspondingly provided at the upper end of the fuel injector, a pressing hole is provided on the pressing plate, a stud corresponding to the pressing hole is fixedly provided at the upper end of the cylinder head, a pressing nut is provided at the upper end of the stud, the pressing nut is threadedly connected to the stud, the pressing nut presses the pressing plate, and the pressing plate presses the fuel injector.

[0013] A second aspect of the present invention provides a measurement method using the fuel injector protrusion height measurement device described in the first aspect above, characterized in that: the laser emitter emits laser light to irradiate the fuel injector protrusion, the laser energy meter measures the laser energy blocked by the fuel injector protrusion, calculates the difference between the laser energy emitted by the laser emitter and the blocked laser energy, and determines whether the fuel injector protrusion height is qualified.

[0014] A third aspect of the present invention provides an electronic device, including a processor and a memory communicatively connected to the processor and used for storing instructions executable by the processor, and the processor is used to execute the fuel injector protrusion height measurement method described in the first aspect above.

[0015] A fourth aspect of the present invention provides a server, including at least one processor and a memory communicatively connected to the processor, the memory storing instructions executable by the at least one processor, and the instructions are executed by the processor to enable the at least one processor to execute the fuel injector protrusion height measurement method described in the first aspect above.

[0016] A fifth aspect of the present invention provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, it implements the fuel injector protrusion height measurement method described in the first aspect above.

[0017] Compared with the prior art, the fuel injector protrusion height measurement device described in the present invention has the following beneficial effects:

[0018] (1) For the fuel injector protrusion height measurement device described in the present invention, the laser emitter emits laser light to irradiate the fuel injector protrusion, the laser energy meter measures the laser energy blocked by the fuel injector protrusion, calculates the difference between the laser energy emitted by the laser emitter and the blocked laser energy, draws a comparison table of the energy difference and the fuel injector protrusion height, and determines whether the fuel injector protrusion height is qualified through the comparison table. The measurement process is simple, the measurement accuracy is high, and the work efficiency and the fuel injector installation quality are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of the device according to the embodiment of the present invention.

[0021] DESCRIPTION OF REFERENCE NUMERALS:

[0022] 1, fuel injector; 2, compression nut; 3, compression plate; 4, stud; 5, cylinder head; 6, gasket; 7, test bracket; 8, CO2 laser; 9, reflector; 10, focusing lens; 11, energy probe; 12, controller; 13, warning light. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0024] The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0025] Embodiment 1:

[0026] As Figure 1 shown, a device for measuring the protruding height of a fuel injector includes a test bracket 7. An installation position for installing a cylinder head 5 to be tested is provided on the test bracket 7. A fuel injector 1 is provided on the cylinder head 5 to be tested. A laser emitter corresponding to the protruding part of the fuel injector 1 is provided on one side of the test bracket 7, and a laser energy meter corresponding to the laser emitter is provided on the other side of the test bracket 7.

[0027] The laser emitter is a CO2 laser 8. Preferably, the CO2 laser 8 adopts, but is not limited to, the existing carbon dioxide laser head with the brand of Golden Laser and the model of JZ-GXTS.

[0028] The laser energy meter includes an energy probe 11 and a controller 12. The energy probe 11 corresponds to the position of the laser emitter, and the energy probe 11 is electrically connected to the controller 12. Preferably, the laser energy meter adopts, but is not limited to, the existing laser energy meter with the brand of New Special Optoelectronics and the model of Thermopile&Photoelectric. The laser energy meter further includes a warning light 13, and the warning light 13 is electrically connected to the controller 12.

[0029] A focusing lens 10 is provided between the laser emitter and the energy probe 11, and a reflecting mirror 9 is provided between the laser emitter and the focusing lens 10. The laser emitted by the laser emitter is irradiated onto the focusing lens 10 through the reflecting mirror 9, which facilitates the adjustment of the position of the laser emitter and reduces the floor area of the device. The focusing lens 10 can focus the laser emitted by the laser emitter, improving the accuracy of the test structure.

[0030] The cylinder head 5 is provided with a mounting hole, and the fuel injector 1 is installed inside the mounting hole. A gasket 6 is provided between the fuel injector 1 and the bottom end of the mounting hole. A pressing plate 3 is correspondingly provided at the upper end of the fuel injector 1. The pressing plate 3 is provided with a pressing hole. A stud 4 corresponding to the pressing hole is fixedly provided at the upper end of the cylinder head 5. A pressing nut 2 is provided at the upper end of the stud 4. The pressing nut 2 is threadedly connected to the stud 4, and the pressing nut 2 presses the pressing plate 3, and the pressing plate 3 presses the fuel injector 1.

[0031] Working process:

[0032] When this solution is implemented, the laser emitter emits laser light to irradiate the protruding part of the fuel injector 1. The laser energy meter measures the laser energy blocked by the protruding part of the fuel injector 1, calculates the difference between the laser energy emitted by the laser emitter and the laser energy after blocking, draws a comparison table of the energy difference and the protruding height of the fuel injector 1, and determines whether the protruding height of the fuel injector 1 is qualified through the comparison table. The measurement process is simple, the measurement accuracy is high, and the work efficiency and the installation quality of the fuel injector 1 are improved.

[0033] Embodiment 2:

[0034] A measuring method using the fuel injector protruding height measuring device described in the above Embodiment 1, characterized in that: the laser emitter emits laser light to irradiate the protruding part of the fuel injector 1, the laser energy meter measures the laser energy blocked by the protruding part of the fuel injector 1, calculates the difference between the laser energy emitted by the laser emitter and the laser energy after blocking, and determines whether the protruding height of the fuel injector 1 is qualified.

[0035] Embodiment 3:

[0036] The third aspect of the present invention provides an electronic device, including a processor and a memory communicatively connected to the processor and used for storing instructions executable by the processor. The processor is used to execute the fuel injector 1 protruding height measuring method described in the above Embodiment 2.

[0037] Embodiment 4:

[0038] The fourth aspect of the present invention provides a server, including at least one processor and a memory communicatively connected to the processor. The memory stores instructions executable by the at least one processor. The instructions are executed by the processor to enable the at least one processor to execute the fuel injector 1 protruding height measuring method as described in the above Embodiment 2.

[0039] Embodiment Five:

[0040] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the method for measuring the protruding height of the fuel injector 1 described in Embodiment Two above.

[0041] Those of ordinary skill in the art can realize that the units and method steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0042] In the several embodiments provided in the present application, it should be understood that the disclosed methods and systems can be implemented in other ways. For example, the above division of units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. The above units may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present invention.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

[0044] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An injector protrusion height measuring device, characterized in that: It includes a test bracket (7) with an installation position for mounting the cylinder head (5) to be tested. An injector (1) is provided on the cylinder head (5) to be tested. A laser emitter corresponding to the protruding part of the injector (1) is provided on one side of the test bracket (7), and a laser energy meter corresponding to the laser emitter is provided on the other side of the test bracket (7). The laser energy meter includes an energy probe (11) and a controller (12). The energy probe (11) corresponds to the position of the laser emitter, and the energy probe (11) is electrically connected to the controller (12). A focusing lens (10) is provided between the laser emitter and the energy probe (11).

2. The injector protrusion height measuring device according to claim 1, wherein: The laser emitter is a CO2 laser (8).

3. The injector protrusion height measuring device according to claim 1, characterized in that: The laser energy meter further includes a warning light (13), and the warning light (13) is electrically connected to the controller (12).

4. The injector protrusion height measuring device according to claim 1, wherein: The cylinder head (5) is provided with a mounting hole, and the injector (1) is installed inside the mounting hole. A gasket (6) is provided between the injector (1) and the bottom end of the mounting hole. A pressing plate (3) is correspondingly provided at the upper end of the injector (1). A pressing hole is provided on the pressing plate (3). A stud (4) corresponding to the pressing hole is fixedly provided at the upper end of the cylinder head (5). A pressing nut (2) is provided at the upper end of the stud (4). The pressing nut (2) is threadedly connected to the stud (4). The pressing nut (2) presses the pressing plate (3), and the pressing plate (3) presses the injector (1).

5. A measurement method using the injector protrusion height measurement device according to any one of claims 1 to 4, characterized in that: The laser emitter emits laser to irradiate the protruding part of the injector (1). The laser energy meter measures the laser energy blocked by the protruding part of the injector (1), calculates the difference between the laser energy emitted by the laser emitter and the laser energy after blocking, and determines whether the protruding height of the injector (1) is qualified.

6. An electronic device, comprising a processor and a memory communicatively connected to the processor and configured to store executable instructions of the processor, wherein: The processor is used to execute the injector protruding height measurement method described in claim 5 above.

7. A server, characterized in that: It includes at least one processor and a memory communicatively connected to the processor. The memory stores instructions executable by the at least one processor. The instructions are executed by the processor to enable the at least one processor to execute the injector protruding height measurement method described in claim 5.

8. A computer-readable storage medium stores a computer program, characterized in that: When the computer program is executed by the processor, it implements the injector protruding height measurement method described in claim 5.

Images