Multipurpose fuel nozzle grinding test tool
By designing a multi-purpose fuel nozzle grinding testing tooling that integrates grinding, flow testing and atomization cone angle testing functions, the problems of complex nozzle debugging, uneven grinding and insufficient testing sealing in the prior art are solved, and efficient and accurate nozzle debugging and testing are achieved.
Patent Information
- Application Number
- CN202520436529.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The debugging process of existing fuel nozzles is complicated and requires different special tooling. The grinding device lacks limit and pressure control, resulting in uneven grinding of the nozzle end surface, affecting the sealing performance and service life, and the test device is not sealed perfectly, affecting the test accuracy.
A multi-purpose fuel nozzle grinding and testing tooling is designed, integrating nozzle grinding, flow test and atomization cone angle testing functions. It uses a quick change joint to connect with the slot of the oil supply joint, and combines the end surface grinding sleeve and spring structure to ensure uniform force during the grinding process, and ensures the sealing of the test process through a sealing ring.
This tooling simplifies the nozzle debugging process, reduces the frequency of changing tooling, improves work efficiency and test accuracy, ensures the flatness and sealing performance of the nozzle end surface, and extends the service life.
Smart Images
Figure CN222740997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nozzle testing, in particular to a multi-purpose fuel nozzle grinding test tool. Background Art
[0002] In the production and maintenance process of fuel nozzles, nozzle grinding, flow testing and atomization cone angle testing are important steps to ensure nozzle performance. However, the current nozzle debugging process in the industry is usually complicated, and different special tools are required to complete each test separately; in addition, during the nozzle grinding process, the existing grinding devices usually lack good limit and pressure control mechanisms, which can easily lead to uneven grinding of the nozzle end face, affecting the sealing performance and service life of the nozzle. At the same time, when some test devices are conducting flow and atomization cone angle tests, the sealing structure is not perfect, which can easily lead to leakage during the test, affecting the test accuracy and even causing equipment damage; the existing technology still has many shortcomings in nozzle grinding, flow testing and atomization cone angle testing. There is an urgent need for a fuel nozzle grinding test tool that can integrate multiple functions, has a simple structure, is easy to use and has high test accuracy, so as to improve the convenience and reliability of nozzle debugging. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-purpose fuel nozzle grinding test fixture, in which the nozzle is connected to the fixture and has a sealing structure. The nozzle can be ground by clamping the fixture, and the nozzle atomization cone angle and flow rate can be observed and debugged by pressurizing the fuel supply joint. The structure is simple, the applicable scenes are diverse, the application range is wide, and the problems in the background technology can be effectively solved.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-purpose fuel nozzle grinding test tool, including a quick-change joint, a nozzle, an oil supply joint, an end face grinding sleeve and a cast iron grinding platform, the quick-change joint is set as a hollow structure, the nozzle is inserted into the quick-change joint and is threadedly connected to the quick-change joint, a groove is processed on the upper end of the quick-change joint, the oil supply joint is stuck in the groove of the quick-change joint, and the nozzle atomization cone angle and flow rate can be observed and debugged by pressurizing the oil supply joint, the end face grinding sleeve is sleeved on the quick-change joint, and a spring is arranged between the end face grinding sleeve and the quick-change joint, the end face grinding sleeve and the spring are used to apply downward pressure to the nozzle on the quick-change joint, and sandpaper is arranged between the end face of the nozzle and the cast iron grinding platform, so that the end face of the nozzle contacts the sandpaper, and the end face grinding sleeve is held by hand for grinding.
[0005] Furthermore, pins are provided on the outer surface of the oil supply connector, and two pins are provided. The pins are connected with the card slots at the upper end of the quick-change connector. This connection method has a simple structure and is not easy to fall off. A sealing ring is provided between the oil supply connector and the quick-change connector. The sealing ring ensures the sealing performance of the oil supply connector and the quick-change connector when they are plugged in.
[0006] Furthermore, a grinding rod is provided in the orifice of the nozzle. During grinding, the grinding machine can clamp the quick-change joint and use the grinding rod to grind the orifice of the nozzle.
[0007] Furthermore, a sealing platform is provided inside the quick-change connector, the end of the nozzle is in contact with the sealing platform, and a second sealing ring is provided between the end of the nozzle and the sealing platform. The sealing platform limits the screwing depth of the nozzle. At the same time, the second sealing ring on the sealing platform is basically sealed with the end of the nozzle to ensure the sealing during the test and the test effect. The thread and the second sealing ring at the lower end of the quick-change connector can be changed in position accordingly according to the nozzle structure.
[0008] Furthermore, an inner boss is provided on the inner side of the upper end of the end face grinding sleeve, and an outer boss is provided on the outer side of the quick-change joint. A spring cavity is formed among the outer boss, the inner boss, the end face grinding sleeve and the quick-change joint. The spring is provided in the spring cavity, and the upper and lower ends of the spring respectively abut against the inner boss and the outer boss. Pressure is applied to the nozzle through the spring to avoid hard contact. During grinding, the effect is better than directly applying pressure to the nozzle.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] 1. The tooling integrates the functions of nozzle grinding, flow testing and atomization cone angle testing. There is no need to frequently change different tooling, which greatly reduces the debugging time and improves work efficiency. The quick-change connector and the oil supply connector are connected by a slot, which is easy to operate and can quickly realize the installation, disassembly and sealing test of the nozzle, reducing the difficulty of use and is suitable for nozzles of different specifications.
[0011] 2. By setting the end face grinding sleeve and the spring structure, the nozzle is evenly stressed during the grinding process, avoiding hard contact, improving the stability and accuracy of grinding, thereby ensuring the flatness of the nozzle end face, improving the sealing performance and service life; the utility model has a reasonable design and a compact structure, can significantly improve the debugging accuracy and efficiency of the fuel nozzle, reduce the complexity of operations during the debugging process, is suitable for multiple application scenarios such as nozzle manufacturing, maintenance and testing, and has broad promotion value. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the utility model for debugging flow rate and atomization cone angle structure;
[0013] Figure 2 This is a schematic diagram of the structure of the grinding end face for debugging of the utility model;
[0014] Figure 3 This is a schematic diagram of the debugging and grinding orifice structure of the utility model.
[0015] In the figure: 1 oil supply joint, 2 sealing ring 1, 3 quick-change joint, 4 sealing ring 2, 5 nozzle, 6 end surface grinding sleeve, 7 spring, 8 sandpaper, 9 cast iron grinding platform, 10 grinding rod, 11 pin, 12 slot, 13 inner boss, 14 outer boss, 15 sealing platform. DETAILED DESCRIPTION
[0016] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 should not be understood as a limitation on the present invention. Embodiment 1
[0017] See also Figure 1-3 The utility model provides a technical solution: a multi-purpose fuel nozzle grinding test tool, including a quick-change joint 3, a nozzle 5, a fuel supply joint 1, an end face grinding sleeve 6 and a cast iron grinding platform 9; wherein the quick-change joint 3 is set as a hollow structure, the nozzle 5 is inserted into the quick-change joint 3 and fixed by threaded connection, the upper end of the quick-change joint 3 is processed with a card slot 12, and two pins 11 are arranged on the outer side of the fuel supply joint 1, and the pins 11 cooperate with the card slots 12 of the quick-change joint 3 to ensure that the fuel supply joint 1 is firmly connected to the quick-change joint 3 and prevent it from falling off; at the same time, a sealing ring 2 is arranged between the fuel supply joint 1 and the quick-change joint 3 to ensure the sealing performance of the connection;
[0018] When in use, the inside of the nozzle 5 can be pressurized through the fuel supply connector 1, and the nozzle 5 sprays the fuel to observe the atomization cone angle and the flow rate, thereby realizing the debugging of the nozzle performance; at the same time, a sealing platform 15 is provided inside the quick-change connector 3, and the end of the nozzle 5 abuts against the sealing platform 15, and a basic seal is performed through the sealing ring 24 to ensure that the fuel will not leak during the test, thereby improving the test accuracy.
[0019] In another possible embodiment, in order to perform end face grinding on the nozzle 5, an end face grinding sleeve 6 is arranged on the outside of the quick-change joint 3, and a spring 7 is arranged between the end face grinding sleeve 6 and the quick-change joint 3; the inner side of the upper end of the end face grinding sleeve 6 has an inner boss 13, and the outer side of the quick-change joint 3 has an outer boss 14, and a spring cavity is formed between the inner boss 13 and the outer boss 14, and the spring 7 is arranged in the spring cavity and applies downward pressure to the nozzle 5; sandpaper 8 is arranged between the end face of the nozzle 5 and the cast iron grinding platform 9, so that the end face of the nozzle 5 contacts the sandpaper 8; when grinding, the end face grinding sleeve 6 is held and appropriate pressure is applied to grind the end face of the nozzle 5 on the sandpaper 8 to ensure that the end face of the nozzle 5 is flat and improve its sealing performance.
[0020] In another possible embodiment, in order to further optimize the grinding effect of the nozzle 5, a grinding rod 10 is set in the orifice of the nozzle 5; during the grinding process, a grinder can be used to clamp the quick-change connector 3, and the grinding rod 10 can be used to grind the orifice of the nozzle 5 to remove tiny burrs and improve the injection performance and accuracy of the nozzle 5.
[0021] When adjusting the nozzle flow rate and atomization cone angle, please Figure 1 As shown, oil is passed to the oil supply joint 1, and the spray state of the nozzle 5 is directly observed and the flow rate is tested; when the end surface of the nozzle 5 is ground, as shown in the attached Figure 2 As shown in the figure, remove the oil supply connector 1 and install the quick-change connector 3 and the nozzle 5 into the end surface grinding sleeve 6, and grind them by hand; when grinding the nozzle 5 orifice, as shown in the figure, Figure 3 The grinder can clamp the quick-change connector 3 and use the grinding rod 10 to grind the orifice of the nozzle 5.
[0022] The multi-purpose fuel nozzle grinding test tool of the utility model combines the nozzle grinding, flow rate testing and atomization cone angle testing functions, has a simple structure and is easy to operate, is suitable for different types of nozzles, and improves the convenience and reliability of nozzle debugging.
[0023] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which are all within the scope of the present invention to be protected.
Claims
1. A multi-purpose fuel nozzle grinding test tool, comprising a quick-change joint (3), a nozzle (5), a fuel supply joint (1), an end surface grinding sleeve (6) and a cast iron grinding platform (9), characterized in that: The quick-change joint (3) is configured as a hollow structure, the nozzle (5) is inserted into the quick-change joint (3) and is threadedly connected to the quick-change joint (3), a slot (12) is processed on the upper end of the quick-change joint (3), the oil supply joint (1) is stuck in the slot (12) of the quick-change joint (3), the end surface grinding sleeve (6) is sleeved on the quick-change joint (3), a spring (7) is provided between the end surface grinding sleeve (6) and the quick-change joint (3), and sandpaper (8) is provided between the end surface of the nozzle (5) and the cast iron grinding platform (9).
2. The multi-purpose fuel nozzle grinding test tool according to claim 1, characterized in that: A pin (11) is provided on the outer side of the oil supply connector (1), two pins (11) are provided, the pins (11) are matched and connected with a slot (12) at the upper end of the quick-change connector (3), and a sealing ring (2) is provided between the oil supply connector (1) and the quick-change connector (3).
3. The multi-purpose fuel nozzle grinding test tool according to claim 1, characterized in that: A grinding rod (10) is arranged in the orifice of the nozzle (5).
4. The multi-purpose fuel nozzle grinding test tool according to claim 1, characterized in that: A sealing platform (15) is provided inside the quick-change joint (3), the end of the nozzle (5) abuts against the sealing platform (15), and a second sealing ring (4) is provided between the end of the nozzle (5) and the sealing platform (15).
5. The multi-purpose fuel nozzle grinding test tool according to claim 1, characterized in that: An inner boss (13) is arranged on the inner side of the upper end of the end surface grinding sleeve (6), and an outer boss (14) is arranged on the outer side of the quick-change joint (3). A spring cavity is formed between the outer boss (14), the inner boss (13), the end surface grinding sleeve (6) and the quick-change joint (3). The spring (7) is arranged in the spring cavity, and the upper and lower ends of the spring (7) respectively contact the inner boss (13) and the outer boss (14).