Internal flow detection equipment for oil nozzle

Abstract

The utility model provides oil nozzle internal flow detection equipment, which relates to the technical field of oil nozzle detection and comprises a workbench, an auxiliary mechanism is mounted at the rear end of the upper surface of the workbench, raw materials are mounted at the front end of the auxiliary mechanism in a clamping manner, and a moving mechanism is mounted at the front end of the upper surface of the workbench. The upper end of the moving mechanism is provided with an optical measuring part. The raw materials are positioned through the cooperation of the clamping plate and the recycling barrel, so that the raw materials are kept in a stable state when liquid flows in the raw materials, the flowing of the liquid in the raw materials can be conveniently captured and displayed by an optical measuring component, inaccurate data caused by the fact that normal work of the raw materials is interfered by a sensor is avoided, and the accuracy of the raw materials is improved. Meanwhile, a user can know the flowing state of liquid in the raw materials more visually and clearly, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel injector detection, and more specifically, to a device for detecting the internal flow of a fuel injector. Background Art

[0002] With the continuous progress of engine technology, the performance requirements for fuel injection systems are also getting higher and higher. As the core component of the fuel injection system, the flow state of the liquid inside the fuel injector directly determines the fuel atomization effect and combustion efficiency, and thus affects the overall performance and emission level of the engine. Therefore, the accurate measurement and monitoring of the liquid flow state inside the fuel injector are particularly important. Traditional methods for detecting the internal flow of fuel injectors mostly rely on physical sensors for contact measurement. However, this method has many limitations. For example, the installation position of the sensor may interfere with the normal operation of the fuel injector, and at the same time, contact measurement may also damage the internal structure of the fuel injector. In addition, the measurement range of physical sensors is limited, and it is difficult to capture the complex flow details inside the fuel injector. Therefore, we propose a device for detecting the internal flow of a fuel injector to solve the above problems. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a device for detecting the internal flow of a fuel injector, which solves the problems that traditional methods for detecting the internal flow of fuel injectors mostly rely on physical sensors for contact measurement, but this method has many limitations. For example, the installation position of the sensor may interfere with the normal operation of the fuel injector, and at the same time, contact measurement may also damage the internal structure of the fuel injector. In addition, the measurement range of physical sensors is limited, and it is difficult to capture the complex flow details inside the fuel injector.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A device for detecting the internal flow of a fuel injector includes a workbench. An auxiliary mechanism is installed at the rear end of the upper surface of the workbench. A raw material is snap-fitted at the front end of the auxiliary mechanism. A moving mechanism is installed at the front end of the upper surface of the workbench. An optical measurement component is installed at the upper end of the moving mechanism. The optical measurement component and the raw material are parallel to each other front and back. The optical measurement component is connected to an external display terminal through a wire.

[0006] Preferably, the auxiliary mechanism includes a fixing plate. The fixing plate is installed at the rear end of the upper surface of the workbench. A first guiding groove is provided at the upper end of the front surface of the fixing plate. A snap-fitting block is movably installed inside the first guiding groove. The raw material is snap-fitted at the front end of the snap-fitting block. A liquid injection pipe is installed at the upper end of the fixing plate. The lower end of the liquid injection pipe is snap-fitted and connected to the upper end of the raw material.

[0007] Preferably, a first guiding rod is installed inside the first guiding groove. The rod body of the first guiding rod movably penetrates and is installed inside the engaging block. A first spring is sleeved and installed on the outer side of the rod body of the first guiding rod between the engaging block and the first guiding groove respectively.

[0008] Preferably, at one end of the upper surface of the engaging block away from the liquid injection pipe, a second sliding groove is provided. At the front and rear ends inside the second sliding groove, clamping blocks are movably installed respectively. The upper ends of the clamping blocks are respectively in contact with the raw material. A second guiding rod is fixedly installed inside the second sliding groove. The rod bodies of the second guiding rod respectively movably penetrate and are installed inside the clamping blocks. At both ends of the rod body of the second guiding rod, second springs are sleeved and installed respectively. The second springs are respectively located between the clamping blocks and the second sliding groove.

[0009] Preferably, a recovery cylinder is installed on the upper surface of the workbench and close to one side of the fixed plate. The lower end of the raw material is snap-fitted and installed inside the upper end of the recovery cylinder. A sealing ring is installed inside the upper end of the recovery cylinder, and the sealing ring is in contact with the raw material. A drain pipe penetrates and is installed at the lower end inside the recovery cylinder. A valve is installed at the upper end of the drain pipe.

[0010] Preferably, the moving mechanism includes a groove. The groove runs through the front end of the upper surface of the workbench. A support block is movably installed inside the groove. The optical measurement component is installed at the upper end of the support block. A threaded rod movably penetrates through the middle inside the groove. The rod body of the threaded rod penetrates through the inside of the support block through threads. A motor is installed at the front end of the workbench. The output end of the motor is connected to the threaded rod.

[0011] Preferably, third guiding rods are installed at both ends inside the groove respectively. The rod bodies of the third guiding rods respectively movably penetrate and are installed inside the support block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) In the utility model, the raw material is positioned through the cooperation of the clamping plate and the recovery cylinder, so that when the liquid flows inside the raw material, the raw material remains in a stable state, which is convenient for the optical measurement component to capture and display the flow of the liquid inside the raw material. It not only avoids the interference of the sensor on the normal work of the raw material resulting in inaccurate data, but also enables the user to more intuitively and clearly understand the flow state of the liquid inside the raw material, making it more convenient to use.

[0014] (2) After the user puts the raw material into the inside of the clamping block in the present utility model, the clamping plate will tightly clamp and limit the raw material through the push of the second spring to ensure that the raw material always remains in a stable state. Then, the user can control the distance between the optical measurement component and the raw material through the threaded rod, which is more convenient for the optical measurement component to capture the liquid flow inside the raw material. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of an internal flow detection device for an injector nozzle of the present utility model;

[0016] Figure 2 It is a front view structure schematic diagram of an internal flow detection device for an injector nozzle of the present utility model;

[0017] Figure 3 It is for an internal flow detection device for an injector nozzle of the present utility model Figure 2 Schematic diagram of the sectional structure at A-A in;

[0018] Figure 4 It is for an internal flow detection device for an injector nozzle of the present utility model Figure 2 Schematic diagram of the sectional structure at B-B in;

[0019] Figure 5 It is for an internal flow detection device for an injector nozzle of the present utility model Figure 3 Schematic diagram of the enlarged structure at C in;

[0020] Figure 6 It is for an internal flow detection device for an injector nozzle of the present utility model Figure 4 Schematic diagram of the enlarged structure at D in.

[0021] In the figure: 1, workbench; 2, auxiliary mechanism; 201, fixing plate; 202, first guiding groove; 203, first guiding rod; 204, clamping block; 205, first spring; 206, recovery cylinder; 207, sealing ring; 208, drain pipe; 209, valve; 210, second sliding groove; 211, second guiding rod; 212, second spring; 213, clamping block; 214, liquid injection pipe; 3, raw material; 4, optical measurement component; 5, moving mechanism; 501, groove; 502, third guiding rod; 503, threaded rod; 504, motor; 505, support block. Detailed Implementation Modes

[0022] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 6 shown, an internal flow detection device for an injector nozzle is proposed in an embodiment of the present utility model, which includes a workbench 1. An auxiliary mechanism 2 is installed at the rear end of the upper surface of the workbench 1. A raw material 3 is snap-fitted at the front end of the auxiliary mechanism 2. A moving mechanism 5 is installed at the front end of the upper surface of the workbench 1. An optical measurement component 4 is installed at the upper end of the moving mechanism 5. The optical measurement component 4 and the raw material 3 are parallel to each other front and back. The optical measurement component 4 is connected to an external display terminal through a wire.

[0024] As Figures 3 to 6 shown, in another embodiment of the present utility model, the auxiliary mechanism 2 includes a fixing plate 201. The fixing plate 201 is installed at the rear end of the upper surface of the workbench 1. A first guiding groove 202 is provided at the upper end of the front surface of the fixing plate 201. A clamping block 204 is movably installed inside the first guiding groove 202. The raw material 3 is snap-fitted at the front end of the clamping block 204. A liquid injection pipe 214 is installed at the upper end of the fixing plate 201. The lower end of the liquid injection pipe 214 is snap-connected to the upper end of the raw material 3. A first guiding rod 203 is installed inside the first guiding groove 202. The rod body of the first guiding rod 203 movably penetrates through the inside of the clamping block 204. First springs 205 are respectively sleeved on the outer side of the rod body of the first guiding rod 203 between the clamping block 204 and the first guiding groove 202. A second sliding groove 210 is provided at one end of the upper surface of the clamping block 204 away from the liquid injection pipe 214. Clamping blocks 213 are respectively movably installed at the front and rear ends inside the second sliding groove 210. The upper ends of the clamping blocks 213 are respectively in contact with the raw material 3. A second guiding rod 211 is fixedly installed inside the second sliding groove 210. The rod bodies of the second guiding rods 211 respectively movably penetrate through the inside of the clamping blocks 213. Second springs 212 are respectively sleeved on the rod bodies of the second guiding rods 211. The second springs 212 are respectively located between the clamping blocks 213 and the second sliding groove 210. A recovery cylinder 206 is installed on the upper surface of the workbench 1 and close to the fixing plate 201. The lower end of the raw material 3 is snap-fitted inside the upper end of the recovery cylinder 206. A sealing ring 207 is installed at the upper end inside the recovery cylinder 206, and the sealing ring 207 is in contact with the raw material 3. A drain pipe 208 penetrates through the lower end inside the recovery cylinder 206. A valve 209 is installed at the upper end of the drain pipe 208.

[0025] The user first pulls the clamping block 204 upward to squeeze the first spring 205. Then the user inserts the raw material 3 into the front end of the clamping block 204. At the same time, as the raw material 3 moves downward, one end of the raw material 3 is clamped between the clamping blocks 213, causing the clamping blocks 213 to move toward both sides and squeeze the second spring 212. Thus, through the push of the second spring 212, the clamping blocks 213 are closely attached to the raw material 3. Then the user can put down the clamping block 204, and the first spring 205 pushes the clamping block 204 and the raw material 3 downward, so that the lower end of the raw material 3 is inserted into the inside of the recovery cylinder 206. Then the user further clamps and installs the liquid injection pipe 214 on the upper end of the raw material 3 to form an integral body. Thus, when it is necessary to detect the inside of the raw material 3, the liquid enters the inside of the raw material 3 through the liquid injection pipe 214, and then the liquid entering the inside of the raw material 3 can enter the inside of the recovery cylinder 206 through the lower end of the raw material 3 for recovery, which is convenient for the user to understand how much liquid flows out of the inside of the raw material 3 according to the recovery cylinder 206. Then after the detection of the raw material 3 is completed, the user can open the valve 209 to let the liquid be discharged and recovered through the drain pipe 208, which is more convenient to use;

[0026] The sealing ring 207 is used to seal between the raw material 3 and the recovery cylinder 206, thus avoiding the situation of liquid leakage.

[0027] As Figure 3 shown in Figure 4 In another embodiment of the present utility model, as shown, the moving mechanism 5 includes a groove 501. The groove 501 runs through the front end of the upper surface of the workbench 1. A support block 505 is movably installed inside the groove 501. The optical measurement component 4 is installed on the upper end of the support block 505. A threaded rod 503 is movably installed through the middle of the inside of the groove 501. The rod body of the threaded rod 503 is installed inside the support block 505 through a thread. A motor 504 is installed at the front end of the workbench 1. The output end of the motor 504 is connected to the threaded rod 503. Two third guiding rods 502 are respectively installed at both ends of the inside of the groove 501. The rod bodies of the third guiding rods 502 are respectively movably installed inside the support block 505.

[0028] The optical measurement component 4 is an optical measurement device, and thus through the optical principles and technologies inside the optical measurement device, such as laser speckle velocimetry, particle image velocimetry, etc., to detect the flow of the liquid inside the raw material 3, which is more convenient for the user to directly understand the flow situation of the liquid inside the raw material 3;

[0029] The motor 504 drives the threaded rod 503 to rotate, and the threaded rod 503 controls the movement of the support block 505 through the thread, so that the support block 505 can drive the optical measurement component 4 to adjust the position according to the required distance for detection, which is more convenient for the user to use.

[0030] Working principle of the internal flow detection device for an injector:

[0031] In use, first, the user pulls the engaging block 204 upward to compress the first spring 205. Then, the user inserts the raw material 3 into the front end of the engaging block 204. At the same time, as the raw material 3 moves downward, one end of the raw material 3 is clamped between the clamping blocks 213, causing the clamping blocks 213 to move toward both sides and compress the second spring 212. Thus, through the push of the second spring 212, the clamping blocks 213 are closely attached to the raw material 3. Then, the user can release the engaging block 204, allowing the first spring 205 to push the engaging block 204 and the raw material 3 downward, so that the lower end of the raw material 3 is inserted into the inside of the recovery cylinder 206. Then, the user further clamps and installs the liquid injection pipe 214 on the upper end of the raw material 3 to form an integral body. Then, the motor 504 drives the threaded rod 503 to rotate, and the threaded rod 503 controls the movement of the support block 505 through the thread, enabling the support block 505 to adjust the position of the optical measurement component 4 according to the required spacing for detection. After the position of the optical measurement component 4 is adjusted, the liquid enters the inside of the raw material 3 through the liquid injection pipe 214. Then, the liquid that enters the inside of the raw material 3 can enter the inside of the recovery cylinder 206 through the lower end of the raw material 3 for recovery. At the same time, the optical measurement component 4 will synchronously detect the flow condition of the liquid inside the raw material 3. Then, the detection data is transmitted to the inside of the display terminal through the wire for display, allowing the user to more directly and clearly view the liquid flow condition.

[0032] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A device for detecting the internal flow of a fuel injection nozzle, comprising a workbench (1), characterized in that: An auxiliary mechanism (2) is installed at the rear end of the upper surface of the workbench (1), a raw material (3) is mounted on the front end of the auxiliary mechanism (2), a moving mechanism (5) is installed at the front end of the upper surface of the workbench (1), an optical measuring component (4) is installed at the upper end of the moving mechanism (5), the optical measuring component (4) and the raw material (3) are parallel to each other front and back, and the optical measuring component (4) is connected to an external display terminal via a wire.

2. The device for detecting the internal flow of a fuel injector according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a fixed plate (201), the fixed plate (201) being mounted on the rear end of the upper surface of the workbench (1), a first guide groove (202) being provided at the upper end of the front surface of the fixed plate (201), a clamping block (204) being movably mounted inside the first guide groove (202), the raw material (3) being clamped and mounted on the front end of the clamping block (204), an injection tube (214) being mounted on the upper end of the fixed plate (201), the lower end of the injection tube (214) being clamped and connected to the upper end of the raw material (3).

3. The device for detecting the internal flow of a fuel injector according to claim 2, characterized in that: A No. 1 guide rod (203) is installed inside the No. 1 guide groove (202), and the shaft of the No. 1 guide rod (203) is movably installed inside the locking block (204), and a No. 1 spring (205) is sleeved and installed on the outer side of the shaft of the No. 1 guide rod (203) located between the locking block (204) and the No. 1 guide groove (202).

4. The device for detecting the internal flow of a fuel injector according to claim 2, characterized in that: A No. 2 slide groove (210) is provided on the upper surface of the locking block (204) and at one end away from the injection tube (214); a clamping block (213) is movably installed at the front and rear ends of the No. 2 slide groove (210); the upper ends of the clamping blocks (213) are respectively in contact with the raw material (3); a No. 2 guide rod (211) is fixedly installed inside the No. 2 slide groove (210); the rod body of the No. 2 guide rod (211) is movably installed inside the clamping block (213); and No. 2 springs (212) are respectively sleeved and installed at both ends of the rod body of the No. 2 guide rod (211); and the No. 2 springs (212) are respectively located between the clamping block (213) and the No. 2 slide groove (210).

5. The device for detecting the internal flow of a fuel injector according to claim 2, characterized in that: A recovery tube (206) is installed on the upper surface of the workbench (1) and on a side close to the fixed plate (201); the lower end of the raw material (3) is snap-fitted to the inner upper end of the recovery tube (206); a sealing ring (207) is installed at the inner upper end of the recovery tube (206), and the sealing ring (207) and the raw material (3) are in close contact; a drainage tube (208) is installed through the inner lower end of the recovery tube (206), and a valve (209) is installed at the upper end of the drainage tube (208).

6. The device for detecting internal flow of a fuel injector according to claim 1, characterized in that: The moving mechanism (5) comprises a groove (501), the groove (501) being arranged through the front end of the upper surface of the workbench (1), a support block (505) being movably mounted inside the groove (501), the optical measuring component (4) being mounted on the upper end of the support block (505), a threaded rod (503) being movably mounted through the middle of the groove (501), the rod body of the threaded rod (503) being mounted through the inside of the support block (505) via a thread, a motor (504) being mounted at the front end of the workbench (1), and an output end of the motor (504) being connected to the threaded rod (503).

7. The device for detecting the internal flow of a fuel injector according to claim 6, characterized in that: Three guide rods (502) are respectively installed at both ends of the groove (501), and the shafts of the three guide rods (502) are movably installed in the interior of the support block (505).

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