A fuel nozzle head retaining ring assembly device

Abstract

This invention relates to the field of assembly technology, specifically to a fuel injector head retainer assembly device, comprising a base, a main shaft vertically arranged on the upper side of the base, a first horizontal arm and a second horizontal arm spaced vertically on the main shaft, both the first and second horizontal arms being rotatably connected to the main shaft along a vertical axis, an adjusting shaft slidably arranged on the first horizontal arm, the lower end of the adjusting shaft being connected to a pin below the first horizontal arm, an operating arm connected to the end of the second horizontal arm away from the main shaft via an up-and-down adjusting assembly, a first block and a second block spaced apart at the end of the operating arm away from the second horizontal arm, a first clamping arm and a second clamping arm vertically arranged on the lower side of the first and second blocks respectively, a clamping block being installed at the lower end of both the first and second clamping arms, the clamping blocks being provided with clamping notches for engaging retainers; a nozzle mounting seat for fixing the nozzle is provided on the upper side of the base, solving the problem in the prior art that some fuel injectors cannot be disassembled and assembled using universal retainer pliers.

Description

Technical Field

[0001] This invention relates to the field of assembly technology, and specifically to a fuel nozzle head retaining ring assembly device. Background Technology

[0002] In aircraft power component maintenance and repair, fuel nozzles often need to be disassembled for cleaning. This cleaning process requires disassembling the internal parts of the fuel nozzle for cleaning and necessary replacement. If these parts are accidentally damaged during disassembly and assembly, the fuel nozzle will malfunction. For example, in the disassembly and assembly of the HGT1700 APU fuel nozzle and similar fuel nozzles, the retaining rings used in the disassembly and assembly differ from standard retaining rings. They lack retaining holes at the open end and are subjected to spring loads at the installation position. Figure 1 As shown, therefore, general-purpose circlip pliers cannot be used for disassembly and assembly. Summary of the Invention

[0003] The purpose of this invention is to provide a fuel nozzle head retainer assembly device, which solves the problem in the prior art that some fuel nozzles cannot be disassembled and assembled using universal retainer pliers.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A fuel injector head retaining ring assembly device includes a base, a main shaft vertically arranged on the upper side of the base, a first horizontal arm and a second horizontal arm spaced vertically on the main shaft, both the first and second horizontal arms being rotatably connected to the main shaft along a vertical axis, a first adjustment hole extending vertically through the first horizontal arm, an adjustment shaft sliding vertically within the first adjustment hole, a pin connected to the lower end of the adjustment shaft below the first horizontal arm, an operating arm connected to the end of the second horizontal arm away from the main shaft via an up-and-down adjustment assembly, a clearance notch for avoiding the pin provided on the side of the operating arm, a first block and a second block spaced apart at the end of the operating arm away from the second horizontal arm, and a gap adjustment assembly for controlling the distance between the first block and the second block, a first clamping arm and a second clamping arm vertically arranged on the lower side of the first block and the second block respectively, a clamping block being installed at the lower end of each of the first and second clamping arms, a clamping notch for engaging the retaining ring provided on the side of the clamping block; and a nozzle mounting seat for fixing the nozzle is provided on the upper side of the base.

[0006] A further technical solution is that a first thread is provided around the outer wall of the adjusting shaft, a limiting groove is provided vertically on the side of the adjusting shaft, a limiting slider is provided on the wall of the first adjusting hole and is connected to the limiting groove for sliding up and down, a bearing is provided around the first adjusting hole on the upper side of the first cross arm, the outer ring of the bearing is fixedly connected to the upper side of the first cross arm, a first adjusting nut is connected to the inner ring of the bearing, a second thread matching the first thread is provided on the inner wall of the first adjusting nut, an external gear ring is provided around the outer wall of the first adjusting nut, a drive motor is installed on the upper side of the first cross arm, and a first gear that meshes with the external gear ring is installed on the output shaft of the drive motor.

[0007] A further technical solution is that the upper side of the ejector pin is provided with a connecting sliding hole, the side of the ejector pin is provided with a connecting strip hole that communicates with the connecting sliding hole, the side of the lower end of the adjusting shaft is provided with a connecting screw hole, the connecting strip hole and the connecting screw hole are connected by a connecting bolt, the lower end of the adjusting shaft is connected to the bottom of the connecting sliding hole by a first spring, the side of the ejector pin is provided with a proximity sensor, and the side of the adjusting shaft located below the first cross arm is provided with a ranging plate that matches the proximity sensor.

[0008] A further technical solution is that the up-and-down adjustment assembly includes a first slide rod, a second slide rod, and a second gear. The second cross arm is provided with a first adjustment slide hole and a second adjustment slide hole that pass through the upper and lower sides. The first slide rod is slidably disposed in the first adjustment slide hole, and the second slide rod is slidably disposed in the second adjustment slide hole. The second cross arm is provided with an adjustment cavity that communicates with the first adjustment slide hole. The second gear is installed in the adjustment cavity through a horizontally disposed rotating shaft. A rack is vertically disposed on the side of the first slide rod. The second gear and the rack are meshed and connected. One end of the rotating shaft is placed on the side of the second cross arm and is connected to a handwheel.

[0009] A further technical solution is that the first block and the second block are respectively provided with a first rotating hole and a second rotating hole that pass through the upper and lower sides. The first clamping arm is rotatably disposed in the first rotating hole and the second clamping arm is rotatably disposed in the second rotating hole. The upper end of the first clamping arm is connected to the upper side of the first block and the upper end of the second clamping arm is connected to the upper side of the second block. The spacing of the clamping notches gradually decreases from the opening to the bottom, and the upper and lower walls of the clamping notches are provided with rubber layers.

[0010] A further technical solution is that the gap adjustment assembly includes an adjusting screw, a guide shaft, a second spring, a second adjusting nut, and a limiting nut. A second adjusting hole is horizontally provided in the second block, and a guide hole is horizontally provided in the first block. One end of the adjusting screw is connected to the first block, and the other end passes through the second adjusting hole and is threadedly connected to the second adjusting nut on the side of the second block away from the first block. The limiting nut is threadedly connected to the adjusting screw on the side of the second adjusting nut away from the second block. The second spring is sleeved on the adjusting screw between the first block and the second block, and both ends of the second spring abut against the first block and the second block respectively. One end of the guide shaft is connected to the second block, and the other end slides in the guide hole. The guide shaft and the adjusting screw are arranged in parallel.

[0011] A further technical solution is that the lower side of the nozzle mounting base is provided with a mounting post, the upper side of the base is provided with a mounting hole that matches the mounting post, the upper side of the nozzle mounting base is provided with a mounting groove, and a positioning seat for fixing the nozzle is provided in the mounting groove.

[0012] A further technical solution is that the spindle includes a first cylinder, a second cylinder, and a third cylinder coaxially connected from top to bottom, with the diameter of the first cylinder being smaller than that of the second cylinder, and the diameter of the second cylinder being smaller than that of the third cylinder. The diameter of the first adjustment hole is adapted to the first cylinder, the diameter of the second adjustment hole is adapted to the second cylinder, and the third cylinder is fixed to the base. A damping hole communicating with the first adjustment hole is provided on the side of the first cross arm. A first rod is fixedly installed in the damping hole. An elastic hole is provided on the first rod facing the first cylinder. A second rod is slidably connected in the elastic hole. One end of the second rod is connected to the bottom of the elastic hole through a third spring, and the other end abuts against the outer wall of the first cylinder. A friction layer is provided at the contact position between the second rod and the first cylinder.

[0013] A further technical solution is that a control module is installed on the first crossarm, and the drive motor and proximity sensor are electrically connected to the control module.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When it is necessary to disassemble the fuel injector, the first horizontal arm is rotated to the top of the injector mounting seat, and then the adjusting shaft drives the ejector pin to move downward to press against the spring assembly inside the injector, so that the spring assembly separates from the retaining ring. Then, the second horizontal arm is rotated to drive the operating arm to the top of the fuel injector, so that the first clamping arm and the second clamping arm are aligned with the protruding positions on both sides of the retaining ring opening. Then, the up and down adjusting assembly drives the first clamping arm and the second clamping arm to move downward, so that the two clamping notches clamp the protruding positions on both sides of the retaining ring opening. Then, the gap adjusting assembly brings the first clamping arm and the second clamping arm closer together, so that the opening of the retaining ring is brought closer together, thereby reducing the size of the retaining ring. Then, the up and down adjusting assembly drives the first clamping arm and the second clamping arm to move upward to remove the retaining ring from the injector. Then, by moving the ejector pin upward, the spring assembly can be slowly released, thereby further disassembling the injector. When assembling the nozzle, first install the spring assembly, then hold it in place with a push pin. Next, use the first and second clamping arms to insert the reduced-size retaining ring into the nozzle. After aligning it with the retaining ring groove, release the retaining ring. This application utilizes a push pin to press down the spring assembly during retaining ring removal, preventing interference with the removal process and ensuring the spring assembly pops out after removal, thus greatly minimizing damage to the entire nozzle during disassembly. The clamping notches on the first and second clamping arms allow for fixation to the protruding part of the retaining ring, enabling the retaining ring to close even without a retaining hole. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the fuel nozzle head retaining ring assembly device of the present invention.

[0016] Figure 2 This is a schematic diagram of the second horizontal arm portion of a fuel nozzle head retaining ring assembly device according to the present invention.

[0017] Figure 3 This is a schematic diagram of the positioning seat and nozzle of a fuel nozzle head retaining ring assembly device according to the present invention.

[0018] Figure 4 for Figure 1 A magnified view of the area marked A in the middle.

[0019] Figure 5 This is a top view schematic diagram of the operating arm of a fuel nozzle head retaining ring disassembly device according to the present invention.

[0020] Figure 6 This is a partial cross-sectional schematic diagram of the second horizontal arm of a fuel nozzle head retaining ring assembly device according to the present invention.

[0021] Figure 7 This is a schematic diagram of the retaining ring, first clamping arm, and second clamping arm of a fuel nozzle head retaining ring assembly device according to the present invention.

[0022] Figure 8 This is a schematic cross-sectional view of the operating arm of a fuel nozzle head retaining ring disassembly device according to the present invention.

[0023] Icons: 1-Base, 2-Main shaft, 3-First horizontal arm, 4-Second horizontal arm, 5-First adjusting hole, 6-Adjusting shaft, 7-Ejector pin, 8-Operating arm, 9-Avoidance notch, 10-First block, 11-Second block, 12-First clamping arm, 13-Second clamping arm, 14-Clamping block, 15-Clamping notch, 16-Nozzle mounting base, 17-Limiting slide groove, 18-Limiting slider, 19-Bearing, 20-First adjusting nut, 21-External gear ring, 22-Drive motor, 23-First gear, 24-Connecting slide hole, 25-Connecting strip hole, 26-Connecting screw hole, 27-Connecting bolt, 28-First spring, 29-Proximity sensor, 30-Distance measuring plate, 31-First slide rod, 32-Second slide rod, 33-Second gear 34-First adjusting slide hole, 35-Second adjusting slide hole, 36-Adjusting cavity, 37-Rotating shaft, 38-Rack, 39-Handwheel, 40-First rotating hole, 41-Second rotating hole, 42-First rotating bar, 43-Second rotating bar, 44-Adjusting screw, 45-Guide shaft, 46-Second spring, 47-Second adjusting nut, 48-Limit nut, 49-Second adjusting hole, 50-Guide hole, 51-Mounting post, 52-Mounting hole, 53-Mounting groove, 54-Positioning seat, 55-First cylinder, 56-Second cylinder, 57-Third cylinder, 58-Damping hole, 59-First rod body, 60-Elastic hole, 61-Second rod body, 62-Control module, 63-Nozzle, 64-Snap ring, 65-Third spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] Figures 1 to 8 The image shows an embodiment of the present invention.

[0026] Example:

[0027] A fuel injector head retainer assembly device includes a base 1. A main shaft 2 is vertically arranged on the upper side of the base 1. A first horizontal arm 3 and a second horizontal arm 4 are arranged vertically and vertically on the main shaft 2. Both the first horizontal arm 3 and the second horizontal arm 4 are rotatably connected to the main shaft 2 along the vertical axis. A first adjustment hole 5 is provided on the first horizontal arm 3, and an adjustment shaft 6 is slidably arranged in the first adjustment hole 5. The lower end of the adjustment shaft 6 is connected to a pin 7 below the first horizontal arm 3. The end of the second horizontal arm 4 away from the main shaft 2 is connected to an operating arm 8 through a vertical adjustment assembly. The side of the operating arm 8 is provided with a useful... The operating arm 8, at the end away from the second horizontal arm 4, is provided with a first block 10 and a second block 11, as well as a gap adjustment component for controlling the distance between the first block 10 and the second block 11. The lower sides of the first block 10 and the second block 11 are respectively provided with a first clamping arm 12 and a second clamping arm 13. The lower ends of the first clamping arm 12 and the second clamping arm 13 are each provided with a clamping block 14. The side of the clamping block 14 is provided with a clamping notch 15 for fitting the retaining ring 64. The upper side of the base 1 is provided with a nozzle mounting seat 16 for fixing the nozzle 63. When it is necessary to disassemble the fuel injector 63, the first horizontal arm 3 is rotated above the injector mounting base 16, and then the adjusting shaft 6 drives the ejector pin 7 to move downward to hold the spring assembly inside the injector 63, so that the spring assembly separates from the retaining ring 64. Then, the second horizontal arm 4 is rotated to drive the operating arm 8 above the fuel injector 63, so that the first clamping arm 12 and the second clamping arm 13 are aligned with the protrusions on both sides of the opening of the retaining ring 64. Then, the first clamping arm 12 and the second clamping arm 13 are moved downward by the up-down adjusting component, so that the two clamping notches 15 clamp the protrusions on both sides of the opening of the retaining ring 64. Then, the first clamping arm 12 and the second clamping arm 13 are brought together by the gap adjusting component, so that the opening of the retaining ring 64 is brought together, thereby reducing the size of the retaining ring 64. Then, the first clamping arm 12 and the second clamping arm 13 are moved upward by the up-down adjusting component to remove the retaining ring 64 from the injector 63. Then, by moving the ejector pin 7 upward, the spring assembly can be slowly released, thereby further disassembling the injector 63. When assembling the nozzle 63, first install the spring assembly, then hold it in place with the ejector pin 7. Next, use the first clamping arm 12 and the second clamping arm 13 to insert the reduced retaining ring 64 into the nozzle 63, align it with the retaining ring groove, and then release the retaining ring 64. This application utilizes the ejector pin 7 to press down the spring assembly during the removal of the retaining ring 64, preventing interference with its removal and ensuring the spring assembly pops out after removal, thus greatly minimizing damage to the entire nozzle 63 during disassembly. The clamping notches 15 on the first and second clamping arms 12 and 13 can be used to fix the retaining ring 64 to its protruding position, allowing the retaining ring 64 to close even when it lacks a retaining hole.

[0028] A first thread is provided around the outer wall of the adjusting shaft 6. A limiting groove 17 is provided vertically on the side of the adjusting shaft 6. A limiting slider 18 is provided on the wall of the first adjusting hole 5, which is slidably connected to the limiting groove 17. A bearing 19 is provided around the first adjusting hole 5 on the upper side of the first cross arm 3. The outer ring of the bearing 19 is fixedly connected to the upper side of the first cross arm 3. A first adjusting nut 20 is connected to the inner ring of the bearing 19. A second thread matching the first thread is provided on the inner wall of the first adjusting nut 20. An external gear ring 21 is provided around the outer wall of the first adjusting nut 20. A drive motor 22 is installed on the upper side of the first cross arm 3. A first gear 23 that meshes with the external gear ring 21 is installed on the output shaft of the drive motor 22. When it is necessary to control the up and down movement of the ejector pin 7, the first gear 23 is rotated by the drive motor 22. The rotation of the first gear 23 will drive the external gear ring 21 to rotate, thereby driving the first adjusting nut 20 to rotate. The first adjusting nut 20 can rotate smoothly with the help of the bearing 19. During the rotation, the limiting slide groove 17 and the limiting slider 18 restrict the adjusting shaft 6 to rotate together with the first adjusting nut 20. In this way, the first thread and the second thread can be used to drive the adjusting shaft 6 to move up and down, thereby controlling the up and down movement of the ejector pin 7.

[0029] The upper side of the ejector pin 7 is provided with a connecting sliding hole 24, and the side of the ejector pin 7 is provided with a connecting strip hole 25 that communicates with the connecting sliding hole 24. The side of the lower end of the adjusting shaft 6 is provided with a connecting screw hole 26. The connecting strip hole 25 and the connecting screw hole 26 are connected by a connecting bolt 27. The lower end of the adjusting shaft 6 is connected to the bottom of the connecting sliding hole 24 by a first spring 28. The side of the ejector pin 7 is provided with a proximity sensor 29, and the side of the adjusting shaft 6 located below the first cross arm 3 is provided with a distance measuring plate 30 that matches the proximity sensor 29. During the downward movement of the ejector pin 7, after the ejector pin 7 contacts the spring assembly of the nozzle 63, as the adjusting shaft 6 continues to move downward, the first spring 28 will be compressed to push the ejector pin 7 downward. At the same time, the spring assembly of the nozzle 63 will be compressed, causing the spring assembly of the nozzle 63 to move downward and separate from the retaining ring 64. Through the cooperation of the proximity sensor 29 and the distance measuring plate 30, the degree of compression of the first spring 28 can be monitored to determine the degree of compression of the spring assembly of the nozzle 63. When the preset compression degree is reached, the drive motor 22 can be stopped.

[0030] The up-down adjustment assembly includes a first slide rod 31, a second slide rod 32, and a second gear 33. The second cross arm 4 is provided with a first adjustment slide hole 34 and a second adjustment slide hole 35 that pass through the upper and lower sides. The first slide rod 31 is slidably disposed in the first adjustment slide hole 34, and the second slide rod 32 is slidably disposed in the second adjustment slide hole 35. The second cross arm 4 is provided with an adjustment cavity 36 that communicates with the first adjustment slide hole 34. The second gear 33 is installed in the adjustment cavity 36 through a horizontally disposed rotating shaft 37. A rack 38 is vertically disposed on the side of the first slide rod 31. The second gear 33 and the rack 38 are meshed and connected. One end of the rotating shaft 37 is placed on the side of the second cross arm 4 and is connected to a handwheel 39. Rotating the second horizontal arm 4 moves the first clamping arm 12 and the second clamping arm 13 to the position aligned with the retaining ring 64. Rotating the handwheel 39 drives the second gear 33 to rotate, thereby driving the first sliding rod 31 downwards via the meshing rack 38. This places the two clamping blocks 14 on both sides of the notch of the retaining ring 64. After the clamping blocks 14 clamp the retaining ring 64, the handwheel 39 is rotated to move the operating arm 8 upwards, separating the retaining ring 64 from the nozzle 63. The second sliding rod 32, in conjunction with the second adjusting sliding hole 35, guides and restricts the relative rotation of the operating arm 8 and the second horizontal arm 4.

[0031] The first block 10 and the second block 11 are respectively provided with a first rotating hole 40 and a second rotating hole 41 that pass through the upper and lower sides. The first clamping arm 12 is rotatably disposed in the first rotating hole 40, and the second clamping arm 13 is rotatably disposed in the second rotating hole 41. The upper end of the first clamping arm 12 is connected to the upper side of the first block 10 with a first rotating bar 42, and the upper end of the second clamping arm 13 is connected to the upper side of the second block 11 with a second rotating bar 43. The spacing of the clamping notches 15 gradually decreases from the opening to the bottom, and the upper and lower walls of the clamping notches 15 are provided with rubber layers. When the first clamping arm 12 and the second clamping arm 13 move down, the clamping notches 15 of the two clamping blocks 14 move to the same height as the opening sides of the retaining ring 64. By rotating the first rotating bar 42 and the second rotating bar 43, the first clamping arm 12 and the second clamping arm 13 can be rotated, so that the two clamping notches 15 clamp the protruding positions on both sides of the opening of the retaining ring 64. The distance between the clamping notches 15 gradually decreases from the opening to the bottom. During the rotation of the first clamping arm 12 and the second clamping arm 13, and during the process of the first clamping arm 12 and the second clamping arm 13 coming together, the clamping notches 15 and the retaining ring 64 will gradually be clamped together. The rubber layer helps to prevent scratching the retaining ring 64. Furthermore, the elasticity of the rubber layer allows the retaining ring 64 to swing around the clamping point when it is removed, facilitating its easier removal. Specifically, after the opening of the retaining ring 64 closes, most of it separates from the retaining ring 64 groove in the nozzle 63. However, the furthest point of the retaining ring 64 relative to the opening remains within the groove. During removal, the first clamping arm 12 and the second clamping arm 13 move upwards in a straight line. To avoid damage to the retaining ring 64 during this upward movement, the rubber layer allows it to swing at an angle, making it easy to remove while preventing bending or damage.

[0032] The gap adjustment assembly includes an adjusting screw 44, a guide shaft 45, a second spring 46, a second adjusting nut 47, and a limiting nut 48. A second adjusting hole 49 is horizontally provided in the second block 11, and a guide hole 50 is horizontally provided in the first block 10. One end of the adjusting screw 44 is connected to the first block 10, and the other end passes through the second adjusting hole 49. It is threadedly connected to the second adjusting nut 47 on the side of the second block 11 away from the first block 10. The limiting nut 48 is threadedly connected to the adjusting screw 44 on the side of the second adjusting nut 47 away from the second block 11. The second spring 46 is sleeved on the adjusting screw 44 between the first block 10 and the second block 11, and both ends of the second spring 46 abut against the first block 10 and the second block 11, respectively. One end of the guide shaft 45 is connected to the second block 11, and the other end is slidably placed in the guide hole 50. The guide shaft 45 and the adjusting screw 44 are arranged in parallel. Rotating the second adjusting nut 47 pushes the second block 11 toward the first block 10, thus bringing the first clamping arm 12 and the second clamping arm 13 closer together. When the second adjusting nut 47 is rotated in the opposite direction, the second spring 46 pushes the first block 10 and the second block 11 away from each other. The limiting nut 48 controls the maximum distance between the first block 10 and the second block 11, ensuring that when the second adjusting nut 47 and the limiting nut 48 are engaged, the first clamping arm 12 and the second clamping arm 13 are precisely positioned to align with the protruding portions on both sides of the notch in the retaining ring 64. The guide shaft 45 and the guide hole 50 enhance the stability of the first block 10 and the second block 11 as they approach or separate.

[0033] The nozzle mounting base 16 has a mounting post 51 on its lower side, and a mounting hole 52 adapted to the mounting post 51 on its upper side. The nozzle mounting base 16 has a recessed mounting groove 53 on its upper side, and a positioning seat 54 for fixing the nozzle 63 is provided within the mounting groove 53. Through the cooperation of the mounting post 51 and the mounting hole 52, the nozzle mounting base 16 can be stably fixed to the base 1. The positioning seat 54 can fix the nozzle 63 within the nozzle mounting base 16. Normally, the positioning seat 54 consists of two parts, upper and lower, with the internal part adapted to the external shape of the nozzle 63. First, the lower part of the positioning seat 54 is placed into the mounting groove 53, then the nozzle 63 is installed into the lower part of the positioning seat 54, and finally the upper part of the positioning seat 54 is fitted in, thus fixing the nozzle 63.

[0034] The main shaft 2 includes a first cylinder 55, a second cylinder 56, and a third cylinder 57 coaxially connected from top to bottom. The diameter of the first cylinder 55 is smaller than that of the second cylinder 56, and the diameter of the second cylinder 56 is smaller than that of the third cylinder 57. The diameter of the first adjusting hole 5 is adapted to the first cylinder 55, and the diameter of the second adjusting hole 49 is adapted to the second cylinder 56. The third cylinder 57 is fixed to the base 1. The side of the first cross arm 3 is provided with a damping hole 58 that communicates with the first adjusting hole 5. A first rod 59 is fixedly installed in the damping hole 58. The first rod 59 is provided with an elastic hole 60 facing the first cylinder 55. A second rod 61 is slidably connected in the elastic hole 60. One end of the second rod 61 is connected to the bottom of the elastic hole 60 through a third spring 65, and the other end abuts against the outer wall of the first cylinder 55. A friction layer is provided at the contact position between the second rod 61 and the first cylinder 55. By setting the first cylinder 55, the second cylinder 56, and the third cylinder 57, the installation of the first crossarm 3 and the second crossarm 4 can be facilitated. During installation, the second crossarm 4 is first fitted onto the second cylinder 56, and then the first crossarm 3 is fitted onto the first cylinder 55. With the cooperation of the first rod 59 and the second rod 61, a damping effect is achieved during the rotation of the first crossarm 3. This makes the first crossarm 3 more stable after it stops rotating and prevents it from easily wobbling. Furthermore, a friction layer or uneven surface can be provided at the position corresponding to the friction layer on the first cylinder 55 to improve the fixing effect. Similarly, the same structure is provided on the second crossarm 4.

[0035] A control module 62 is mounted on the first crossarm 3. The drive motor 22 and the proximity sensor 29 are both electrically connected to the control module 62. By setting up the control module 62, it is easy to start, stop, and automatically stop the drive motor 22. The control module 62 can be controlled by a microcontroller or a PLC.

[0036] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A fuel nozzle tip retaining ring de-coupling device, comprising: Includes a base (1), on which a main shaft (2) is vertically arranged on the upper side. The main shaft (2) is provided with a first horizontal arm (3) and a second horizontal arm (4) spaced vertically. The first horizontal arm (3) and the second horizontal arm (4) are rotatably connected to the main shaft (2) along the vertical axis. The first horizontal arm (3) is provided with a first adjustment hole (5) that runs vertically through it. An adjustment shaft (6) is slidably arranged vertically in the first adjustment hole (5). The lower end of the adjustment shaft (6) is connected to a pin (7) below the first horizontal arm (3). The end of the second horizontal arm (4) away from the main shaft (2) is connected to an operating arm (8) through a vertical adjustment assembly. The side of the operating arm (8) is provided with a feature for avoiding... The ejector pin (7) has a clearance notch (9). The operating arm (8) is provided with a first block (10) and a second block (11) at a distance from the second horizontal arm (4), as well as a gap adjustment component for controlling the distance between the first block (10) and the second block (11). The lower sides of the first block (10) and the second block (11) are respectively provided with a first clamping arm (12) and a second clamping arm (13). The lower ends of the first clamping arm (12) and the second clamping arm (13) are each equipped with a clamping block (14). The side of the clamping block (14) is provided with a clamping notch (15) for fitting the retaining ring (64). The upper side of the base (1) is provided with a nozzle mounting seat for fixing the nozzle (63). (16); The upper side of the ejector pin (7) is provided with a connecting sliding hole (24), and the side of the ejector pin (7) is provided with a connecting strip hole (25) that communicates with the connecting sliding hole (24). The side of the lower end of the adjusting shaft (6) is provided with a connecting screw hole (26). The connecting strip hole (25) and the connecting screw hole (26) are connected by a connecting bolt (27). The lower end of the adjusting shaft (6) is connected to the bottom of the connecting sliding hole (24) through a first spring (28). The side of the ejector pin (7) is provided with a proximity sensor (29). The side of the adjusting shaft (6) below the first cross arm (3) is provided with a ranging plate (30) that matches the proximity sensor (29). The first block (10) and the second block (11) are respectively provided with a first rotating hole (40) and a second rotating hole (41) that pass through the upper and lower sides. The first clamping arm (12) is rotatably disposed in the first rotating hole (40), and the second clamping arm (13) is rotatably disposed in the second rotating hole (41). The upper end of the first clamping arm (12) is connected to the upper side of the first block (10) with a first rotating bar (42), and the upper end of the second clamping arm (13) is connected to the upper side of the second block (11) with a second rotating bar (43). The spacing of the clamping notches (15) gradually decreases from the opening to the bottom, and the upper and lower walls of the clamping notches (15) are provided with rubber layers.

2. A fuel nozzle tip retaining ring de-coupling device according to claim 1, wherein: A first thread is provided around the outer wall of the adjusting shaft (6), and a limiting groove (17) is provided vertically on the side of the adjusting shaft (6). A limiting slider (18) is provided on the wall of the first adjusting hole (5) and is slidably connected to the limiting groove (17). A bearing (19) is provided around the first adjusting hole (5) on the upper side of the first cross arm (3). The outer ring of the bearing (19) is fixedly connected to the upper side of the first cross arm (3). A first adjusting nut (20) is connected to the inner ring of the bearing (19). A second thread matching the first thread is provided on the inner wall of the first adjusting nut (20). An external gear ring (21) is provided around the outer wall of the first adjusting nut (20). A drive motor (22) is installed on the upper side of the first cross arm (3). A first gear (23) meshing with the external gear ring (21) is installed on the output shaft of the drive motor (22).

3. The fuel nozzle tip retainer ring deinstallation device of claim 1, wherein: The up-down adjustment assembly includes a first slide rod (31), a second slide rod (32), and a second gear (33). The second cross arm (4) is provided with a first adjustment slide hole (34) and a second adjustment slide hole (35) that pass through the upper and lower sides. The first slide rod (31) is slidably disposed in the first adjustment slide hole (34), and the second slide rod (32) is slidably disposed in the second adjustment slide hole (35). The second cross arm (4) is provided with an adjustment cavity (36) that communicates with the first adjustment slide hole (34). The second gear (33) is installed in the adjustment cavity (36) through a horizontally disposed rotating shaft (37). A rack (38) is vertically disposed on the side of the first slide rod (31). The second gear (33) and the rack (38) are meshed and connected. One end of the rotating shaft (37) is placed on the side of the second cross arm (4) and is connected to a handwheel (39).

4. The fuel nozzle head retaining ring disassembly device according to claim 1, characterized in that: The gap adjustment assembly includes an adjusting screw (44), a guide shaft (45), a second spring (46), a second adjusting nut (47), and a limiting nut (48). A second adjusting hole (49) is horizontally provided inside the second block (11), and a guide hole (50) is horizontally provided inside the first block (10). One end of the adjusting screw (44) is connected to the first block (10), and the other end passes through the second adjusting hole (49). It is threadedly connected to the second adjusting nut (47) on the side of the second block (11) away from the first block (10). The limiting nut... (48) The second adjusting nut (47) is threadedly connected to the adjusting screw (44) on the side away from the second block (11). The second spring (46) is sleeved on the adjusting screw (44) between the first block (10) and the second block (11), and the two ends of the second spring (46) abut against the first block (10) and the second block (11) respectively. One end of the guide shaft (45) is connected to the second block (11), and the other end is slidably placed in the guide hole (50). The guide shaft (45) and the adjusting screw (44) are arranged in parallel.

5. A fuel nozzle head retaining ring disassembly device according to claim 1, characterized in that: The nozzle mounting base (16) has a mounting post (51) on its lower side, and the base (1) has a mounting hole (52) adapted to the mounting post (51) on its upper side. The nozzle mounting base (16) has a recessed mounting groove (53) on its upper side, and a positioning seat (54) for fixing the nozzle (63) is provided in the mounting groove (53).

6. The fuel nozzle head retaining ring disassembly device according to claim 4, characterized in that: The main shaft (2) includes a first cylinder (55), a second cylinder (56), and a third cylinder (57) coaxially connected from top to bottom. The diameter of the first cylinder (55) is smaller than that of the second cylinder (56), and the diameter of the second cylinder (56) is smaller than that of the third cylinder (57). The diameter of the first adjusting hole (5) is adapted to the first cylinder (55), and the diameter of the second adjusting hole (49) is adapted to the second cylinder (56). The third cylinder (57) is fixed to the base (1). The side of the first cross arm (3) is provided with a... The damping hole (58) is connected to the first adjustment hole (5). A first rod (59) is fixedly installed in the damping hole (58). An elastic hole (60) is provided on the first rod (59) facing the first cylinder (55). A second rod (61) is slidably connected in the elastic hole (60). One end of the second rod (61) is connected to the bottom of the elastic hole (60) through a third spring (65), and the other end abuts against the outer wall of the first cylinder (55). A friction layer is provided at the contact position between the second rod (61) and the first cylinder (55).

7. The fuel nozzle head retaining ring disassembly device according to claim 1, characterized in that: A control module (62) is installed on the first cross arm (3), and the drive motor (22) and the proximity sensor (29) are both electrically connected to the control module (62).

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