A high-pressure oil pipe inner wall dust removal device

Abstract

The utility model relates to a high pressure oil pipe inner wall dust removal device, it includes high pressure air blast component, spacing component, the high pressure air blast component includes gas supply pipeline and clamping unit, the clamping unit includes two air cylinders I, the air cylinder I is opposite arrangement, the gas supply pipeline is equipped with solenoid valve, front end pressure sensor, gas delivery interface and gas return interface at least, the spacing component is equipped with carrier, the distance of carrier to gas delivery interface and the distance of carrier to gas return interface are all greater than the maximum extension of any piston rod. High pressure oil pipe inner wall dust removal device adopts high pressure air blowing way to handle the metal dust of high pressure oil pipe inner wall, and high pressure air passes through high pressure oil pipe inner wall unidirectionally, and the metal dust is carried away by airflow, avoids the metal dust residue.

Description

Technical Field

[0001] This utility model relates to high-pressure oil pipe production equipment, and more particularly to a dust removal device for removing impurities from the inside of high-pressure oil pipes. Background Technology

[0002] High-pressure fuel lines are critical components of internal combustion engines, their core function being the delivery of high-pressure fuel. During operation, they must withstand significant internal pressure from the fuel. To withstand this pressure, their ends must possess high mechanical strength to ensure they are not easily deformed or cracked when tightly connected to other components. The outer and inner surfaces of the high-pressure fuel line ends undergo grinding and polishing processes, which generate metal dust that remains inside the line. While this metal dust is much smaller than the inner diameter of the line and does not affect the performance of the finished high-pressure fuel line, if it enters the internal combustion engine, it can negatively impact its operation. Summary of the Invention

[0003] The technical problem to be solved by this invention is how to remove metal dust from the inner wall of a high-pressure oil pipe, thereby obtaining a dust removal device for the inner wall of a high-pressure oil pipe.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: The high-pressure oil pipe inner wall dust removal device includes a high-pressure scavenging component and a limiting component. The high-pressure scavenging component includes an air supply pipeline and a clamping unit. The clamping unit includes two cylinders I, which are arranged facing each other. The air supply pipeline is provided with at least a solenoid valve, a front-end pressure sensor, an air supply interface, and a return air interface. The air supply interface is installed on the piston rod of one of the cylinders I, and the return air interface is installed on the piston rod of the other cylinder I. The air supply interface and the return air interface are arranged facing each other. The solenoid valve is located upstream of the air supply interface, and the front-end pressure sensor is located upstream of the solenoid valve. The limiting component is provided with a carrier. The carrier is provided with an intersecting blocking surface with a vertical plane structure and a guide surface I with an inclined plane structure. Surface I is parallel to the extension and retraction direction of the piston rod of cylinder I. The carrier forms a limiting groove between the blocking surface and the guiding surface I. The limiting groove is located between the air supply port and the air return port. The distance from the carrier to the air supply port and the distance from the carrier to the air return port are both greater than the maximum extension of the piston rod of any cylinder I.

[0005] The high-pressure oil pipe inner wall dust removal device is connected after the grinding and polishing step at the end of the high-pressure oil pipe. The main working method of the high-pressure oil pipe inner wall dust removal device is to introduce high-pressure air into the high-pressure oil pipe and use the high-pressure air to blow the inner wall of the high-pressure oil pipe to achieve the purpose of removing metal dust. In this technical solution, the clamping unit provides the power to drive the air supply interface and return interface, establishing or disengaging the connection between the ends of the high-pressure oil pipe and the air supply interface, respectively. The blocking surface of the limiting groove is a vertical structure, which easily forms an opening with a specific orientation and precise angle between it and the guide surface I, allowing the limiting groove to provide a reliable working reference. The air supply interface and return interface are distributed around the limiting groove, facilitating smooth docking between the air supply interface and return interface and the high-pressure oil pipe confined within the limiting groove. The front-end pressure sensor is used to monitor the pressure status of the high-pressure air. The high-pressure air pressure output from the air supply pipeline is relatively stable, but when purging the inner wall of the high-pressure oil pipe, there is a regular and brief decrease in air pressure in the air supply pipeline, which immediately returns to its original state after purging. This change process can be monitored by the front-end pressure sensor. By using the pressure sensor at the input end of the programmable controller to obtain the signal, the stability of the purging operation can be improved. Especially when the end of the high-pressure oil pipe is not correctly docked with the air supply interface, the abnormal air pressure change can be detected by the front-end pressure sensor, thereby quickly closing the solenoid valve and avoiding safety accidents.

[0006] The high-pressure oil pipe inner wall dust removal device is used to receive high-pressure oil pipes after grinding and polishing. To ensure the device is compatible with the grinding and polishing equipment and can automatically receive high-pressure oil pipe output from the equipment, the device also includes an input component. This input component includes a support base, a swing arm, and a cylinder II. The middle portion of the swing arm is rotatably connected to the support base, and the piston rod of cylinder II is movably connected to the swing arm. Cylinder II drives the swing arm. The swing arm swings in a vertical plane. The top of the swing arm is provided with a conveying plane. The swing range of the swing arm includes the position where the swing arm is level with the conveying plane and the guide surface I, and the position where the end of the swing arm near the load seat is higher than the load seat. The range of motion of the end of the swing arm near the load seat is greater than the range of motion of the end of the swing arm away from the load seat. The swing arm of the input component can swing, and this swing design can play a role in grouping and isolating. When the end of the swing arm near the carrier is higher than the carrier, the swing arm is in a horizontal position or tilted away from the carrier. The high-pressure oil pipe output from the grinding and polishing equipment falls on the conveying plane. After moving along the conveying plane, the high-pressure oil pipe cannot reach the limit groove. Only when the conveying plane is level with the guide surface I, the swing arm is in a tilted position close to the carrier. The high-pressure oil pipe output from the grinding and polishing equipment falls on the conveying plane. The high-pressure oil pipe slides along the conveying plane by its own weight. The tilting direction of the conveying plane is aligned with the limit groove. After moving along the conveying plane, the high-pressure oil pipe falls into the limit groove. In this way, the high-pressure oil pipes entering the limit groove can be effectively grouped and isolated, avoiding the situation where multiple high-pressure oil pipes enter the limit groove.

[0007] To allow the purged high-pressure oil pipe to automatically detach from the dust removal device inside the high-pressure oil pipe, the limiting component also includes a push plate and cylinder III. The push plate is mounted on the piston rod of cylinder III, and cylinder III drives the push plate to move vertically. The top of the push plate has a guide surface II with an inclined structure. The push plate passes through the carrier seat, and its range of motion intersects with the limiting groove. The inclination angle of guide surface II relative to the horizontal plane is smaller than that of guide surface I relative to the horizontal plane. Initially, the push plate is located below the limiting groove and has already disengaged from it. When the push plate rises, it can lift the high-pressure oil pipe until it slides down along guide surface II and leaves the limiting groove.

[0008] The push plate only moves vertically. To achieve more stable vertical guidance, the carrier is provided with a groove to guide the push plate's sliding, and one side of the push plate is embedded in the groove. The carrier has a through hole to facilitate the sliding of the push plate, and the groove communicates with the through hole. The groove effectively extends the guiding effect of the through hole in the vertical direction, allowing the push plate to achieve stable vertical guidance along the groove.

[0009] After being purged, the high-pressure oil pipe needs to be detached from the carrier after being output by the push plate. Therefore, the carrier... A guide surface III is provided, which is parallel to guide surface I, and the length of guide surface III is greater than the length of guide surface I. The high-pressure oil pipe can easily detach from the carrier by moving along guide surface III under its own weight.

[0010] After the high-pressure oil pipe is purged, the internal metal dust is output to the outside through the return air interface. In order to limit this metal dust, the air supply line is equipped with a dust collection bag downstream of the return air interface. The return air interface is connected to the dust collection bag through an air supply pipe. One end of the air supply pipe is connected to the return air interface, and the other end of the air supply pipe extends into the inside of the dust collection bag.

[0011] The present invention adopts the above-mentioned technical solution: the high-pressure oil pipe inner wall dust removal device uses high-pressure air blowing to treat the metal dust on the inner wall of the high-pressure oil pipe. The high-pressure air passes through the inner wall of the high-pressure oil pipe in one direction, and the metal dust is carried away by the airflow, avoiding metal dust residue. Attached Figure Description

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 is a schematic diagram of the use of a high-pressure oil pipe inner wall dust removal device according to the present invention; Figure 2 is a magnified view of a portion of Figure 1; Figure 3 is a magnified view of a portion of Figure 2. Detailed Implementation

[0014] As shown in Figures 1, 2, and 3, in this embodiment, the high-pressure oil pipe inner wall dust removal device is integrated with the high-pressure oil pipe grinding and polishing equipment, sharing the same frame and programmable controller.

[0015] The high-pressure oil pipe inner wall dust removal device includes a high-pressure scavenging component, a limiting component, and an input component.

[0016] The high-pressure scavenging component includes an air supply line and a clamping unit. The air supply line includes an air compressor, an air delivery pipe, a solenoid valve, a front-end pressure sensor, an air delivery interface 1, an air return interface 2, and a dust collection bag. The clamping unit includes two cylinders I3, whose cylinder bodies are fixedly mounted on the frame. The cylinders I3 are positioned opposite each other, meaning the piston rod of one cylinder I3 is opposite the piston rod of the other cylinder I3. Air delivery interface 1 is installed on the piston rod of one cylinder I3, and air return interface 2 is installed on the piston rod of the other cylinder I3. Air inlet 1 and air outlet 2 are positioned opposite each other. Both air inlet 1 and air outlet 2 can be driven by cylinder I3 to perform synchronous reciprocating motion. Air inlet 1 is connected to the air compressor via an air supply pipe. A solenoid valve and a front-end pressure sensor are located on this air supply pipe. The solenoid valve is located upstream of air inlet 1, and the front-end pressure sensor is located upstream of the solenoid valve. The solenoid valve and the front-end pressure sensor are connected to the programmable controller via cables. Air inlet 1 and air outlet 2 have identical structures. They both have internal air passages. One end of the air passage connects to the air supply pipe, and the other end of the air passage has an interface structure for inserting a high-pressure oil pipe. A dust collector bag is mounted on the frame, and the other end of the air supply pipe connected to air outlet 2 extends into the dust collector bag. In the initial state, the solenoid valve is closed, cylinder I3 is retracted, and the maximum distance is maintained between air inlet 1 and air outlet 2.

[0017] The limiting components include a carrier 4, a push plate 9, and a cylinder III 11. The carrier 4 is fixed to the frame and is located between the air supply port 1 and the air return port 2. The carrier 4 is provided with a guide surface I 5, a blocking surface 6, and a guide surface III 8. Both guide surfaces I 5 and III 8 are inclined structures, with guide surface I 5 parallel to guide surface III 8, and the length of guide surface III 8 being greater than the length of guide surface I 5. The blocking surface 6 is a vertical structure, intersecting guide surface I 5 at its bottom and guide surface III 8 at its top. The carrier 4 forms a limiting groove 7 between the blocking surface 6 and the guide surface I 5. The limiting groove 7 is located between the air supply port 1 and the air return port 2. Since both the blocking surface 6 and the guide surface I 5 are parallel to the extension and retraction direction of the piston rod of cylinder I 3, the opening of the limiting groove 7 faces a direction perpendicular to the extension and retraction direction of the piston rod of cylinder I 3.

[0018] Two limiting components are distributed between the air supply port 1 and the air return port 2. The distance from any load seat 4 to the air supply port 1 or the distance from any load seat 4 to the air return port 2 is greater than the maximum extension of the piston rod of any cylinder I 3. Each load seat 4 is paired with a push plate 9 and a cylinder III 11. The cylinder body of cylinder III 11 is fixed on the frame, and the push plate 9 is fixedly mounted on the piston rod of cylinder III 11. Cylinder III 11 drives the push plate 9 to reciprocate in the vertical direction. The load seat 4 is provided with a through hole and a sliding groove 16, both of which extend in the vertical direction and are connected. The push plate 9 passes through the through hole, and one side of the push plate 9 is embedded in the sliding groove 16. The sliding groove 16 guides the push plate 9 to move in the vertical direction. The range of motion of the push plate 9 is related to the limiting groove 7. The push plate 9 can disengage from, extend into, or pass through the limiting groove 7. The top of the push plate 9 has a guide surface II 10 with a sloping structure. The inclination angle of guide surface II 10 relative to the horizontal plane is less than the inclination angle of guide surface I 5 relative to the horizontal plane. In the initial state, the cylinder III 11 retracts, the push plate 9 does not enter the limiting groove 7, and the guide surface II 10 disengages from the limiting groove 7.

[0019] The high-pressure oil pipe inner wall dust removal device has two input components. The input components include a support base 12, a swing arm 13, and a cylinder II 14. The support base 12 is fixedly mounted on the frame; the middle part of the swing arm 13 is rotatably connected to the support base 12, and the distance from one end of the swing arm 13 to the support base 12 is greater than the distance from the other end of the swing arm 13 to the support base 12. One end of the swing arm 13 is closer to the load seat 4, and the other end of the swing arm 13 is farther from the load seat 4. The cylinder body of the cylinder II 14 is movably connected to the frame, and the piston rod of the cylinder II 14 is movably connected to one end of the swing arm 13. The extension and retraction of the cylinder II 14 can drive the swing arm 13 to swing around the support base 12 in a vertical plane. The top of the swing arm 13 is provided with a conveying plane 15, and after swinging, the swing arm 13 can reach a position where the conveying plane 15 is level with the guide surface I 5. After swinging, the swing arm 13 can reach a position where the end of the swing arm 13 closest to the carrier 4 is higher than the carrier 4. The range of motion of the end of the swing arm 13 closest to the carrier 4 is greater than the range of motion of the end of the swing arm 13 furthest from the carrier 4. In the initial state, cylinder II 14 is extended, the end of the swing arm 13 closest to the carrier 4 is higher than the carrier 4, and the conveying plane 15 is in an inclined state.

[0020] During operation, the high-pressure oil pipe inner wall dust removal device needs to respond to the output of the high-pressure oil pipe from the high-pressure oil pipe grinding and polishing equipment. Cylinder II 14 retracts, and swing arm 13 swings until the conveying plane 15 is level with the guide surface I 5. Due to inertia and its own weight, the high-pressure oil pipe moves along swing arm 13 until it completely falls into the limiting groove 7. Then, cylinder II 14 extends, swing arm 13 returns to its initial state, and cylinder I 3 extends simultaneously. One end of the high-pressure oil pipe extends into the air supply port 1, and the other end extends into the air return port 2, reducing the distance between air supply port 1 and air return port 2. Next, the solenoid valve opens, and high-pressure air instantly passes through the high-pressure oil pipe. After flowing through air return port 2, the high-pressure air is input into the dust collection bag. Finally, the solenoid valve closes, cylinder I 3 retracts simultaneously, cylinder III 11 extends, and push plate 9 lifts the high-pressure oil pipe until... The high-pressure oil pipe moves outward along guide surface Ⅲ8 by its own weight. Once cylinder Ⅲ11 is reset, the above purging operation can be performed again.

[0021] During the purging operation, the front-end pressure sensor monitors the high-pressure air pressure upstream of the solenoid valve. Under normal circumstances, the pressure drop remains within a fixed range from the opening to the closing of the solenoid valve, and a regular pressure change indicates that the purging operation is proceeding normally. However, if the pressure changes significantly or not at all, for example, if the high-pressure oil pipe is not inserted into the air inlet 1 and the pressure change suddenly increases after the solenoid valve opens, or if a large foreign object blocks the high-pressure oil pipe and the pressure change is approximately zero after the solenoid valve opens, then the purging operation is abnormal. In this case, the programmable controller will close the solenoid valve according to the set operating rules, and may even activate the warning device to issue a warning.

Claims

1. A dust removal device for the inner wall of a high-pressure oil pipe, characterized in that: The high-pressure oil pipe inner wall dust removal device includes a high-pressure scavenging component and a limiting component. The high-pressure scavenging component includes an air supply pipeline and a clamping unit. The clamping unit includes two cylinders I (3) facing each other. The air supply pipeline is equipped with at least a solenoid valve, a front-end pressure sensor, an air supply interface (1), and a return air interface (2). The air supply interface (1) is installed on the piston rod of one of the cylinders I (3), and the return air interface (2) is installed on the piston rod of the other cylinder I (3). The air supply interface (1) and the return air interface (2) face each other. The solenoid valve is located upstream of the air supply interface (1), and the front-end pressure sensor is located upstream of the solenoid valve. The limiting component is provided with a carrier (4), on which there are intersecting blocking surfaces (6) with vertical plane structure and guide surfaces I (5) with inclined plane structure. Both the blocking surfaces (6) and guide surfaces I (5) are parallel to the extension and retraction direction of the piston rod of cylinder I (3). The carrier (4) forms a limiting groove (7) between the blocking surfaces (6) and guide surfaces I (5). The limiting groove (7) is located between the air supply interface (1) and the air return interface (2). The distance from the carrier (4) to the air supply interface (1) and the distance from the carrier (4) to the air return interface (2) are both greater than the maximum extension of the piston rod of any cylinder I (3).

2. The high-pressure oil pipe inner wall dust removal device according to claim 1, characterized in that: The high-pressure oil pipe inner wall dust removal device also includes an input component, which includes a support base (12), a swing arm (13), and a cylinder II (14). The middle part of the swing arm (13) is rotatably connected to the support base (12). The piston rod of the cylinder II (14) is rotatably connected to the swing arm (13). The cylinder II (14) drives the swing arm (13) to swing in the vertical plane. The top of the swing arm (13) is provided with a conveying plane (15). The swing range of the swing arm (13) includes the position where the swing arm (13) is level with the conveying plane (15) and the guide surface I (5) and the position where the end of the swing arm (13) near the load seat (4) is higher than the load seat (4). The range of motion of the end of the swing arm (13) near the load seat (4) is greater than the range of motion of the end of the swing arm (13) away from the load seat (4).

3. The high-pressure oil pipe inner wall dust removal device according to claim 1, characterized in that: The limiting component is also provided with a push plate (9) and a cylinder III (11). The push plate (9) is mounted on the piston rod of the cylinder III (11). The cylinder III (11) drives the push plate (9) to move in the vertical direction. The top of the push plate (9) is provided with a guide surface II (10) with an inclined structure. The push plate (9) passes through the carrier seat (4). The movement range of the push plate (9) intersects with the limiting groove (7). The inclination angle of the guide surface II (10) relative to the horizontal plane is smaller than the inclination angle of the guide surface I (5) relative to the horizontal plane.

4. The high-pressure oil pipe inner wall dust removal device according to claim 3, characterized in that: The carrier (4) is provided with a slide groove (16) for guiding the push plate (9) to slide, and one side of the push plate (9) is embedded in the slide groove (16).

5. The high-pressure oil pipe inner wall dust removal device according to claim 1, characterized in that: The carrier (4) is provided with a guide surface Ⅲ (8), which is parallel to the guide surface Ⅰ (5), and the length of the guide surface Ⅲ (8) is greater than the length of the guide surface Ⅰ (5).

6. The high-pressure oil pipe inner wall dust removal device according to claim 1, characterized in that: The gas supply pipeline is provided with a dust removal bag downstream of the return gas interface (2). The return gas interface (2) is connected to the dust removal bag through a gas supply pipe. One end of the gas supply pipe is connected to the return gas interface (2), and the other end of the gas supply pipe extends into the dust removal bag.

Images