Divided lift measuring tool for oil nozzle matching part

Abstract

The utility model discloses an oil nozzle matching part lift division measuring tool, which relates to a needle valve body processing device and comprises a first circular ring, a clamp assembly arranged on the first circular ring and a valve body arranged on the first circular ring, the valve body comprises a first through pipe and a second through pipe, a first circular hole is formed in the bottom end of the first through pipe, a spring is arranged in the first circular hole, and one end of the spring is fixedly connected with a sliding part. The end, away from the first through pipe, of the sliding piece is connected with one end of a second through pipe, a needle valve is arranged in the second through pipe, an electromagnetic coil is arranged in the first through pipe, a second round hole is formed in the upper end of the second through pipe, and an armature is arranged in the second round hole. The oil nozzle is placed in the first circular ring, the first circular ring is rotated, the first circular ring is provided with the arc-shaped rail, the first circular ring drives the sliding block to move towards the center of the first circular ring while moving, the C-shaped block moves towards the valve body, and the two sides of the C-shaped block make contact with the side wall of the valve body while making contact with the valve body to move. And therefore, the valve body is limited.

Description

Technical Field

[0001] The utility model relates to a needle valve body processing device, in particular to a fuel injection nozzle pair component lift measurement tool. Background Art

[0002] As one of the key components of the internal combustion engine fuel supply system, the performance of the internal combustion engine will be seriously affected by the working quality of the fuel injector. The fuel injector works by controlling precision parts. The parts of the fuel injector are composed of a needle valve and a needle valve body. In order to ensure the consistency of the operation of each cylinder of the internal combustion engine, the fuel injector parts with completely consistent fuel injection flow rates need to be selected and installed on the same internal combustion engine during installation. However, due to reasons such as processing accuracy, the flow measurement device is required to measure the flow of the fuel injector parts and group them.

[0003] And with the continuous development of engine combustion technology, the requirements for the atomization effect of fuel injected into the cylinder are getting higher and higher. Increasing the injection pressure of the fuel system as a means of effectively improving the fuel atomization effect is more widely used in higher-level fuel systems. In addition, high-power density engines need to spray more fuel within a certain period of time. Increasing the injection pressure of the fuel system is one of the important means to meet this requirement. The continuous increase in the injection pressure of the fuel system has put higher and higher requirements on the fuel injector. On the one hand, the sealing surface of the fuel injector will be subject to more high-pressure leakage risks; on the other hand, the increasing pressure is also a severe test for the structural strength of the fuel injector.

[0004] At present, with the continuous increase of the injection pressure of the fuel system, the requirements for the fuel injector are also getting higher and higher. Therefore, it is necessary to measure the flow of the fuel injector needle valve pair. However, the existing measuring device is not convenient for fixing and clamping the fuel injector during the measurement process, so there are certain unstable factors that have an adverse effect on the measurement results, and it is not convenient to adjust, which makes the measurement efficiency slow. Therefore, it is necessary to improve the flow measurement device of the fuel injector needle valve pair.

[0005] In summary, the present invention proposes a tool for measuring the lift range of a fuel injection nozzle pair. Utility Model Content

[0006] The utility model aims to provide a tool for measuring the lift range of a fuel injection nozzle pair to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuel injection nozzle pair component sub-lift measurement tool, comprising a circular ring 1, a fixture assembly is arranged on the circular ring 1, a valve body is arranged on the circular ring 1, the valve body comprises a through pipe 1 and a through pipe 2, a circular hole 1 is arranged at the bottom end of the through pipe 1, a spring is arranged in the circular hole 1, a sliding member is fixedly connected to one end of the spring, an end of the sliding member away from the through pipe 1 is connected to an end of the through pipe 2, a needle valve is arranged in the through pipe 2, and an electromagnetic coil is arranged in the through pipe 1, a circular hole 2 is opened at the upper end of the through pipe 2, and an armature is arranged in the circular hole 2;

[0008] The clamp assembly is provided with a pushing assembly.

[0009] As a technical solution of the present invention, the sliding member includes a cylinder 1, a side wall of the cylinder is slidably connected to the inner wall of a circular hole 1, a connecting rod 1 is fixedly connected to the bottom end of the cylinder 1, a ring 2 is fixedly connected to the end of the connecting rod 1 away from the cylinder 1, and one side of the connecting rod 1 is fixedly connected to the top of a through pipe 2.

[0010] As a technical solution of the present invention, the diameter of the second circular ring is larger than the diameters of the first through pipe and the second through pipe.

[0011] As a technical solution of the present invention, the clamp assembly includes a sliding block, the bottom end of the sliding block is slidably connected to the upper end face of a circular ring, the upper end face of the sliding block is fixedly connected to a fixed block, a long groove is opened on the fixed block, the inner wall of the long groove is rotatably connected to a rotating column, and the rotating column is fixedly connected to a C-shaped block.

[0012] As a technical solution of the present invention, the pushing assembly includes an electric telescopic rod, one end of the electric telescopic rod is fixedly connected to one side of a C-shaped block, one side of the C-shaped block is fixedly connected to a fixed plate one, and one side of the fixed plate one is rotatably connected to a connecting rod two, the side of the connecting rod two away from the fixed plate one is rotatably connected to a fixed plate two, the bottom end of the fixed plate two is fixedly connected to a limiting member, the limiting member is provided with a sliding groove, a U-shaped block is slidably connected in the sliding groove, and the bottom end of the U-shaped block is fixedly connected to one end of the electric telescopic rod.

[0013] As a technical solution of the present invention, an oil inlet hole is opened on the through pipe 1, and an oil inlet channel connected to the oil inlet hole is provided on the through pipe 1.

[0014] As a technical solution of the present invention, flow meters are provided on both side walls of the through pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model describes a tool for measuring the lift range of a fuel injection nozzle pair:

[0017] 1. The utility model places the fuel injection nozzle in a circular ring, rotates the circular ring, and an arc-shaped rail is provided on the circular ring. The circular ring moves while driving the sliding block to move toward the center of the circular ring, so that the C-shaped block moves toward the valve body, and while contacting the valve body, both sides of the C-shaped block contact the side walls of the valve body respectively, thereby limiting the valve body.

[0018] 2. The utility model extends the electric telescopic rod and pushes the pushing column to move upward. Since the pushing column is fixedly connected to the bottom end of the U-shaped block, and the U-shaped block is slidably connected to the slide groove, the pushing column moves and pushes the U-shaped block to move in the slide groove, thereby causing the fixed plate 2 to move in the direction of the fixed plate 1, and while the fixed plate 2 moves toward the fixed plate 1, it also moves upward, causing the fixed plate 1 to push the circular ring 2 to move upward, driving the needle valve to move, thereby changing the pressure in the through pipe 2, thereby changing the amount of oil passing through the needle valve, and while the needle valve sprays oil, the flow meter measures the amount of oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamp assembly of the utility model;

[0022] Figure 4 It is a cross-sectional view of the valve body of the utility model;

[0023] Figure 5 For the utility model Figure 1 A partial enlarged view of point A in the middle.

[0024] In the figure: 1. Ring 1; 2. Clamp assembly; 20. Sliding block; 21. Fixed block; 210. Long groove; 22. Rotating column; 23. C-shaped block; 3. Valve body; 30. Through pipe 1; 3000. Round hole 1; 300. Spring; 301. Sliding part; 3010. Cylinder 1; 3011. Connecting rod 1; 3012. Ring 2; 302. Needle valve; 303. Solenoid coil; 304. Oil inlet hole; 305. Oil inlet channel; 31. Through pipe 2; 310. Round hole 2; 311. Armature; 4. Push assembly; 40. Electric telescopic rod; 41. Fixed plate 1; 42. Connecting rod 2; 43. Fixed plate 2; 44. Limiting part; 45. U-shaped block; 46. Push column; 5. Flow meter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 A tool for measuring the lift of a pair of fuel injection nozzles, comprising a ring 1, a fixture assembly 2 is arranged on the ring 1, a valve body 3 is arranged on the ring 1, the valve body 3 comprises a through pipe 1 30 and a through pipe 2 31, a round hole 1 3000 is arranged at the bottom of the through pipe 1 30, a spring 300 is arranged in the round hole 1 3000, a sliding member 301 is fixedly connected to one end of the spring 300, the sliding member 301 is connected to one end of the through pipe 2 31 away from one end of the through pipe 1 30, a needle valve 302 is arranged in the through pipe 2 31, and an electromagnetic coil 303 is arranged in the through pipe 1 30, a round hole 2 310 is opened at the upper end of the through pipe 2 31, and an armature 311 is arranged in the round hole 2 310;

[0027] The clamp assembly 2 is provided with a pushing assembly 4 .

[0028] Example 1

[0029] See also Figure 1-5 In this embodiment, the size of the nozzle needle valve pair usually depends on the model and brand of the nozzle used; generally speaking, the size of the nozzle needle valve pair will vary according to the diameter and length of the nozzle, so the nozzle needle valve pairs of different brands and models may have certain differences. In order to make the nozzle run more stably and meet the requirements of different nozzle models, the nozzle is placed in the ring 1, and the ring 1 is rotated. The ring 1 is provided with an arc track. When the ring 1 moves, the sliding block 20 is driven to move toward the center of the ring 1, so that the C-block 23 moves toward the valve body 3, and while contacting the valve body 3, the two sides of the C-block 23 are respectively in contact with the side walls of the valve body 3, thereby limiting the valve body 3.

[0030] When the valve body 3 is limited, the electric telescopic rod 40 extends and pushes the pushing column 46 to move upward. Since the pushing column 46 is fixedly connected to the bottom end of the U-shaped block 45, and the U-shaped block 45 is slidably connected to the slide groove, the pushing column 46 moves and pushes the U-shaped block 45 to move in the slide groove, thereby causing the fixed plate 2 43 to move toward the fixed plate 1 41, and while the fixed plate 2 43 moves toward the fixed plate 1 41, it also moves upward, causing the fixed plate 1 41 to push the circular ring 2 3012 to move upward, thereby changing the position of the circular ring 2 3012.

[0031] Because the second circular ring 3012 is connected to the second through pipe 31, the movement of the second circular ring 3012 drives the needle valve 302 to move, thereby changing the pressure in the second through pipe 31, and then changing the amount of oil passing through the needle valve 302. When the needle valve 302 sprays oil, the flow meter 5 measures the amount of oil.

[0032] The utility model discloses a tool for measuring the lift range of a fuel injection nozzle pair. In actual use, the fuel injection nozzle is placed in a circular ring 1, and the circular ring 1 is rotated. The movement of the circular ring 1 drives the sliding block 20, so that the sliding block 20 moves toward the center direction of the circular ring 1, so that the C-shaped block 23 moves toward the valve body 3, and while contacting the movement of the valve body 3, the two sides of the C-shaped block 23 respectively contact the side walls of the valve body 3, thereby limiting the valve body 3, and then controlling the electric telescopic rod 40 to extend, so that the electric telescopic rod 40 pushes the pushing column 46 to move upward, because the pushing column 46 is fixedly connected to the bottom end of the U-shaped block 45, and the U-shaped block 45 is slidably connected to the slide groove, The pushing column 46 moves and at the same time pushes the U-shaped block 45 to move in the slide groove, thereby causing the fixed plate 2 43 to move toward the fixed plate 1 41. While the fixed plate 2 43 moves toward the fixed plate 1 41, it also moves upward, causing the fixed plate 1 41 to push the circular ring 2 3012 to move upward, thereby changing the position of the circular ring 2 3012. The circular ring 2 3012 is connected to the through pipe 2 31, so that the movement of the circular ring 2 3012 drives the needle valve 302 to move, thereby changing the pressure in the through pipe 2 31, thereby changing the amount of oil passing through the needle valve 302, and while the needle valve 302 sprays oil, the flow meter 5 measures the amount of oil.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool for measuring the lift range of a fuel injection nozzle pair, comprising a ring 1 (1), characterized in that: The circular ring 1 (1) is provided with a clamp assembly (2), the circular ring 1 (1) is provided with a valve body (3), the valve body (3) comprises a through pipe 1 (30) and a through pipe 2 (31), the through pipe 1 (30) is provided with a circular hole 1 (3000) at the bottom end, a spring (300) is provided in the circular hole 1 (3000), one end of the spring (300) is fixedly connected with a sliding member (301), the sliding member (301) is connected to one end of the through pipe 2 (31) away from one end of the through pipe 1 (30), a needle valve (302) is provided in the through pipe 2 (31), and an electromagnetic coil (303) is provided in the through pipe 1 (30), the through pipe 2 (31) is provided with a circular hole 2 (310) at the upper end, and an armature (311) is provided in the circular hole 2 (310); The clamp assembly (2) is provided with a pushing assembly (4); The sliding member (301) comprises a cylinder 1 (3010), the side wall of the cylinder 1 (3010) being slidably connected to the inner wall of the circular hole 1 (3000), the bottom end of the cylinder 1 (3010) being fixedly connected to a connecting rod 1 (3011), the end of the connecting rod 1 (3011) away from the cylinder 1 (3010) being fixedly connected to a circular ring 2 (3012), and one side of the connecting rod 1 (3011) being fixedly connected to the top end of the through pipe 2 (31).

2. The tooling for measuring the lift range of a fuel injection nozzle pair according to claim 1, characterized in that: The diameter of the second circular ring (3012) is greater than the diameters of the first through pipe (30) and the second through pipe (31).

3. The tooling for measuring the lift range of a fuel injection nozzle pair according to claim 1, characterized in that: The clamp assembly (2) comprises a sliding block (20), the bottom end of the sliding block (20) being slidably connected to the upper end surface of the circular ring (1), the upper end surface of the sliding block (20) being fixedly connected to a fixed block (21), a long groove (210) being formed on the fixed block (21), a rotating column (22) being rotatably connected to the inner wall of the long groove (210), and a C-shaped block (23) being fixedly connected to the rotating column (22).

4. The fuel injection nozzle pairing partial lift measurement tool according to claim 3, characterized in that: The pushing assembly (4) comprises an electric telescopic rod (40), one end of which is fixedly connected to one side of a C-shaped block (23), one side of which is fixedly connected to a fixing plate 1 (41), and one side of the fixing plate 1 (41) is rotatably connected to a connecting rod 2 (42), a side of the connecting rod 2 (42) away from the fixing plate 1 (41) is rotatably connected to the fixing plate 2 (43), a bottom end of the fixing plate 2 (43) is fixedly connected to a limiting member (44), a sliding groove is provided on the limiting member (44), a U-shaped block (45) is slidably connected in the sliding groove, a pushing column (46) is fixedly connected to the bottom end of the U-shaped block (45), and a bottom end of the pushing column (46) is fixedly connected to one end of the electric telescopic rod (40).

5. The fuel injection nozzle pairing partial lift measurement tool according to claim 1, characterized in that: The through pipe one (30) is provided with an oil inlet hole (304), and the through pipe one (30) is provided with an oil inlet passage (305) connected to the oil inlet hole (304).

6. The tooling for measuring the lift range of a fuel injection nozzle pair according to claim 1, characterized in that: A flow meter (5) is provided on the side wall of the second through pipe (31).

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