A kind of aviation engine pipeline fixing structure

Abstract

The present invention relates to the field of pipeline fixing, specifically to an aircraft engine pipeline fixing structure, comprising a base plate, a fixing rod installed on the top of the base plate, a clamp base installed on the other end of the fixing rod, a clamp seat mounting rod fixedly installed on the right side of the clamp base, a fixed clamp seat fixedly installed on the outside of the clamp seat mounting rod, a plurality of movable clamp seats located on the right side of the fixed clamp seat sleeved and installed on the outside of the clamp seat mounting rod, a clamp fastening assembly installed on the top of the fixed clamp seat and the plurality of movable clamp seats, a clamp circumferential adjustment assembly installed between the fixed clamp seat and the plurality of movable clamp seats, a clamp circumferential positioning assembly installed on the right end of the clamp seat mounting rod, a clamp radial adjustment assembly installed on the top of the fixed clamp seat and the movable clamp seat, and a clamp fastening assembly installed on the top of the clamp radial adjustment assembly. The present invention can fix pipelines at different distances, positions and angles by adjusting the position of the clamp fastening assembly.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline fixing, and in particular to an aircraft engine pipeline fixing structure. Background Art

[0002] The external pipelines of aircraft engines are generally fixed by single clamps and double clamps. The purpose of clamps to fix pipelines is to provide support for the pipelines, absorb pipeline vibration energy, ensure that the resonance frequency of each section of the pipeline meets the safety working requirements, and avoid damage to the pipeline caused by pipeline resonance generated in the complex vibration environment of the engine. Due to the limited external space of the aircraft engine, the pipelines are densely arranged in layers on the surface of the aircraft engine.

[0003] When pipes are fixed with clamps, in order to provide support between the pipes, clamps are needed between two or more pipes, and multiple single clamps or double clamps are needed to fix the multiple pipes together, and the clamps need to be fixed to the engine casing, which increases the complexity of assembly and the weight of the whole machine. At the same time, the space for the arrangement of the clamps is very limited, and the arrangement position of some clamps is not ideal, resulting in a decrease in the restraining ability of the pipes, causing the pipes to move in series after operation, increasing the risk of pipe use.

[0004] A patent with publication number CN115680883A discloses a three-pipe clamp for an aircraft engine, which has two half clamps with opposite rotation directions. The half clamps include a support structure and a bundle tube half groove. The inner end of the bundle tube half groove is fixedly connected to the outer side wall of the support structure to form an integrated structure. The outer end of the bundle tube half groove is connected to the outer end of the bundle tube half groove of another half clamp to form a bundle tube ring. The support structure is a hollow structure. The support structure uses the inscribed circle of the three bundle tube rings as the rotation center and the center of the circle, and can realize the fixed connection of three pipelines at the same time.

[0005] However, the angles between the three bundle tube rings of the above structure are fixed, and the radial distances between the three bundle tube rings are also fixed, so there are restrictions on the directions, positions and distances of different pipelines, and it is impossible to meet the requirements of the fixed arrangement of complex pipelines.

[0006] Therefore, the present invention provides an aircraft engine pipeline fixing structure to solve the above-mentioned problem. Summary of the invention

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an aircraft engine pipeline fixing structure to solve the problems raised in the above background technology.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is:

[0009] A pipeline fixing structure for an aircraft engine comprises a base plate, a fixing rod is installed on the top of the base plate, a clamp base is installed on the other end of the fixing rod, a clamp seat mounting rod is fixedly installed on the right side surface of the clamp base, a fixed clamp seat is fixedly installed on the outer side of the clamp seat mounting rod, a plurality of movable clamp seats located on the right side of the fixed clamp seat are sleeved and installed on the outer side of the clamp seat mounting rod, a clamp fastening assembly is installed on the top of the fixed clamp seat and the plurality of movable clamp seats, a clamp circumferential adjustment assembly is installed between the fixed clamp seat and the plurality of movable clamp seats, a clamp circumferential positioning assembly is installed on the right end of the clamp seat mounting rod, a clamp radial adjustment assembly is installed on the top of the fixed clamp seat and the movable clamp seat, and the clamp fastening assembly is installed on the top of the clamp radial adjustment assembly.

[0010] Preferably, a substrate ball hinge seat is fixedly installed on the top of the substrate, and both ends of the fixing rod are fixedly connected with hinge balls, and the fixing rod is respectively ball-hinge-coordinated with the clamp base and the substrate ball hinge seat through the hinge balls at both ends, and a plurality of criss-cross ball hinge positioning grooves are provided on the outer surface of the hinge ball, and ball hinge positioning grooves are provided on the inner side surfaces of the clamp base and the substrate ball hinge seat, and a ball hinge positioning block is slidably installed in the ball hinge positioning groove, and a ball hinge cross block is fixedly connected to the side surface of the ball hinge positioning block facing the hinge ball, and a ball hinge positioning spring is installed in the ball hinge positioning groove, and threaded holes are penetrated between the outer side surfaces of the clamp base and the substrate ball hinge seat and the ball hinge positioning groove inside them, and a ball hinge positioning bolt is threadedly installed in each of the threaded holes.

[0011] Preferably, the middle part of the fixing rod is broken into two parts, an upper part and an lower part, a square groove is coaxially opened in the middle of the two broken surfaces of the fixing rod, a square rod is slidably connected between the insides of the two square grooves, external threads are provided on the outer surfaces of both ends of the broken position of the fixing rod, and a telescopic inner screw sleeve is threadedly installed between the two external threads.

[0012] Preferably, the clamp radial adjustment assembly comprises a radial adjustment guide hole, a radial adjustment guide rod, a radial adjustment plate, a radial adjustment screw hole, and a radial adjustment bolt;

[0013] Two symmetrical radial adjustment guide holes are respectively provided on the top of the fixed clamp seat and the movable clamp seat, and radial adjustment guide rods are slidably installed in the two radial adjustment guide holes, a radial adjustment plate is fixedly connected between the top ends of the two radial adjustment guide rods, a radial adjustment screw hole passes through the middle of the radial adjustment plate, and radial adjustment bolts that cooperate with the threads of the radial adjustment screw holes are rotatably installed in the middle of the top surfaces of the fixed clamp seat and the movable clamp seat.

[0014] Preferably, the clamp fastening assembly comprises a clamp rotating shaft, a clamp connecting plate, a first semicircular clamp, a second semicircular clamp, an annular bending portion, a semi-annular bending portion, a clamp screw shaft, a screw swinging groove, a clamp screw, a clamp fastening push rod, and a clamp fastening nut;

[0015] The top of the radial adjustment plate is rotatably installed with two clamp shafts symmetrically positioned in the front and rear directions, and the outer sides of the two clamp shafts are fixedly connected with clamp connecting plates, one of the top of the clamp connecting plates is fixedly connected with a first semicircular clamp, and the top of the other clamp connecting plate is fixedly connected with a second semicircular clamp, the top of the first semicircular clamp extends an annular bending portion to its outer side surface, and the top of the second semicircular clamp has semi-annular bending portions extending to its outer side surfaces on both sides of the top of the second semicircular clamp. A clamp screw shaft is coaxially mounted on the inside of the annular bending portion, and a screw swinging groove is opened in the middle of the annular bending portion, and a clamp screw extending out of the screw swinging groove is fixedly mounted on the outer side of the clamp screw shaft, and a clamp fastening push rod is sleeved on the outer side of the clamp screw, and two clamp fastening nuts located on both sides of the clamp fastening push rod are installed on the outer thread of the clamp screw.

[0016] Preferably, a cross groove is provided between the inner and outer side surfaces of the top end of the second semicircular clamp, the width of the top end of the first semicircular clamp is smaller than the width of the bottom end, and the width of the top end of the first semicircular clamp is the same as the width of the cross groove.

[0017] Preferably, the tops of the fixed clamp seat and the movable clamp seat are each provided with a plurality of circumferentially distributed angle adjustment guide holes, the plurality of angle adjustment guide holes are located on the extension lines of the circumferential directions of the two radial adjustment guide holes, the middle portions of the bottom surfaces of the two radial adjustment guide rods are each provided with an angle adjustment positioning groove, an angle adjustment cone block is slidably installed in the angle adjustment positioning groove, and an angle adjustment spring connected to the angle adjustment cone block is installed in the angle adjustment positioning groove.

[0018] Preferably, the clamp circumferential adjustment assembly comprises a rhombus continuous annular groove, a rhombus cone block, a circumferential positioning spring groove, a circumferential positioning spring, and a circumferential positioning push plate;

[0019] The right side surfaces of the fixed clamp seat and the movable clamp seat are both provided with diamond-shaped continuous annular grooves, and the diamond-shaped continuous annular grooves are composed of annularly distributed diamond-shaped grooves, and every two diamond-shaped grooves are connected. A plurality of annularly distributed diamond-shaped cone blocks are fixedly installed on the left side surfaces of the plurality of movable clamp seats. Circumferential positioning spring grooves are coaxially provided on the left and right side surfaces of the fixed clamp seat and the movable clamp seat. A circumferential positioning spring is fixedly installed inside the circumferential positioning spring groove on the left side surface of each movable clamp seat, and a plurality of circumferentially distributed circumferential positioning push plates are circumferentially slidably installed on the right end of the clamp seat mounting rod.

[0020] Preferably, the clamp circumferential positioning assembly includes a push plate ring coaxially fixedly installed on the outer side surface of the right end of the clamp seat mounting rod, a plurality of circumferentially distributed push plate grooves are opened between the left and right side surfaces of the push plate ring, the circumferential positioning push plate is slidably installed in the push plate groove, the right end of the clamp seat mounting rod is coaxially rotatably installed with a push plate screw, the outer side of the push plate screw is threadedly installed with a push plate sleeve, and the right ends of the plurality of circumferential positioning push plates are fixedly connected to the left side surface of the push plate sleeve.

[0021] Preferably, a screw bevel gear is coaxially fixedly installed on the outer side surface of the right end of the push plate screw, and a driving cylinder is coaxially rotatably installed on the right side surface of the push plate ring. A driving hole is penetrated through the outer side surface of the right end of the driving cylinder toward the inside, and a driving pin is rotatably installed in the driving hole. The driving pin is coaxially fixedly connected with a driving bevel gear meshing with the screw bevel gear, and a driving cross groove is provided on the end surface of the driving pin facing the outside of the driving cylinder, and a plurality of circumferentially distributed dial holes are provided on the outer side surface of the driving cylinder.

[0022] The beneficial effects of the present invention are:

[0023] 1. The clamp fastening assembly can adjust the circumferential position and the radial distance, and can fix pipelines with different spacings and angles. When it is necessary to adjust the circumferential position of multiple active clamp seats, the clamp circumferential positioning assembly can be used to release the restriction on the clamp circumferential adjustment assembly, and then the multiple active clamp seats can be adjusted for circumferential rotation. After the adjustment is completed, the clamp circumferential adjustment assembly can be positioned by the clamp axial positioning assembly, and the clamp circumferential adjustment assembly can realize the limitation of multiple active clamp seats. The radial distance of multiple clamp fastening assemblies relative to the clamp seat mounting rod can be adjusted by the clamp radial adjustment assembly.

[0024] 2. The fixing rod is respectively articulated with the clamp base and the ball articulated seat of the substrate through the articulated balls at both ends, so that the clamp seat mounting rod can be moved to any position, and multiple clamp fastening assemblies can fix the pipes in complex pipelines. When the positions of the clamp seat mounting rod and the clamp fastening assembly are adjusted into place, the ball articulated positioning bolt can be screwed into the ball articulated positioning groove to make it abut against the top of the ball articulated positioning block, so that the ball articulated cross block is fixed in the ball articulated positioning slot. At this time, the articulated ball is fixed to the clamp base and the ball articulated seat of the substrate.

[0025] 3. Place the first semicircular clamp and the second semicircular clamp on both sides of the pipe respectively and close them to the middle, then place the clamp fastening push rod inside the semicircular bending part. At this time, the clamp fastening nut close to the free end of the clamp screw can be used to extrude the clamp fastening push rod toward the inner direction of the semicircular bending part, so that the annular bending part and the semicircular bending part are close to the middle, so that the first semicircular clamp and the second semicircular clamp can fix the pipe. When fixing a pipe with a smaller diameter, the top end of the first semicircular clamp and the cross groove can be crossed with each other, so that the pipe with a smaller diameter can be fixed without replacing clamps of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0027] Figure 2 It is the right side view of the present invention.

[0028] Figure 3 For the present invention Figure 2 Three-dimensional cross-section view at AA in the middle.

[0029] Figure 4 It is a three-dimensional schematic diagram of multiple clamp fastening assemblies of the present invention installed on a clamp seat mounting rod.

[0030] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle.

[0031] Figure 6 It is a three-dimensional schematic diagram of the present invention after the clamp base and the hinge ball are separated.

[0032] Figure 7 For the present invention Figure 3 Enlarged view of point C in the middle.

[0033] Figure 8 It is a three-dimensional schematic diagram of the clamp fastening assembly of the present invention.

[0034] Fig. 9 It is a cross-sectional view of the clamp fastening assembly of the present invention.

[0035] Fig.10 For the present invention Fig. 9 Enlarged view of point D in the middle.

[0036] Fig.11 It is a three-dimensional schematic diagram of the clamp fastening assembly of the present invention when cross-fixed.

[0037] Fig.12 For the present invention Figure 1 Enlarged view of point E in the middle.

[0038] Fig.13 For the present invention Figure 3 Enlarged view of point F in the middle.

[0039] Fig.14 For the present invention Figure 3 Enlarged view of point G in the middle.

[0040] In the figure: 1, base plate; 2, fixing rod; 3, clamp base; 4, clamp seat mounting rod; 5, fixed clamp seat; 6, movable clamp seat; 7, clamp fastening assembly; 8, clamp circumferential adjustment assembly; 9, clamp circumferential positioning assembly; 10, clamp radial adjustment assembly; 11, base plate ball hinge seat; 12, hinge ball; 13, ball hinge positioning slot; 14, ball hinge positioning slot; 15, ball hinge positioning block; 16, ball hinge cross block; 17, ball hinge positioning spring; 18, ball hinge positioning bolt; 19, square slot; 20, square rod; 21, external thread; 22, telescopic inner screw sleeve; 23, radial adjustment guide hole; 24, radial adjustment guide rod; 25, radial adjustment plate; 26, radial adjustment screw hole; 27, radial adjustment bolt; 28, clamp shaft; 29, clamp connecting plate; 3 0. First semicircular clamp; 31. Second semicircular clamp; 32. Annular bending portion; 33. Semi-annular bending portion; 34. Clamp screw shaft; 35. Screw swing groove; 36. Clamp screw; 37. Clamp fastening push rod; 38. Clamp fastening nut; 39. Cross groove; 40. Angle adjustment guide hole; 41. Angle adjustment positioning groove; 42. Angle adjustment cone block; 43. Angle adjustment spring; 44. Diamond continuous annular groove; 45. Diamond cone block; 46. Circumferential positioning spring groove; 47. Circumferential positioning spring; 48. Circumferential positioning push plate; 49. Push plate ring; 50. Push plate groove; 51. Push plate screw; 52. Push plate screw sleeve; 53. Screw bevel gear; 54. Drive cylinder; 55. Drive hole; 56. Drive pin shaft; 57. Drive bevel gear; 58. Drive cross groove; 59. Toggle hole. DETAILED DESCRIPTION

[0041] The following will refer to the attached Figure 1-Figure 14 Description Various embodiments of the present invention are described in detail.

[0042] An aircraft engine pipeline fixing structure, as shown in the attached Figure 1-14 As shown, it includes a base plate 1, which can be fixed to the casing of the engine by bolts, a fixing rod 2 is installed on the top of the base plate 1, a clamp base 3 is installed on the other end of the fixing rod 2, a clamp seat mounting rod 4 is fixedly installed on the right side of the clamp base 3, a fixed clamp seat 5 is fixedly installed on the outer side of the clamp seat mounting rod 4, and a plurality of movable clamp seats 6 located on the right side of the fixed clamp seat 5 are sleeved and installed on the outer side of the clamp seat mounting rod 4, and the number of movable clamp seats 6 can be set to multiple, and the attached Figure 1The number of movable clamp seats 6 in the embodiment is 3, and the tops of the fixed clamp seats 5 and the multiple movable clamp seats 6 are all equipped with clamp fastening components 7, which can adjust the circumferential position and the radial distance, and can fix pipelines with different spacings and angles, and a clamp circumferential adjustment component 8 is installed between the fixed clamp seats 5 and the multiple movable clamp seats 6, and a clamp circumferential positioning component 9 is installed on the right end of the clamp seat mounting rod 4, and when the circumferential positions of the multiple movable clamp seats 6 need to be adjusted, the clamp circumferential positioning component 9 can be used to release the clamp. The clamp circumferential adjustment component 8 is limited, and the multiple movable clamp seats 6 can be adjusted in circumferential rotation at this time. When the adjustment is completed, the clamp circumferential adjustment component 8 can be positioned by the clamp circumferential positioning component 9, and the clamp circumferential adjustment component 8 can realize the limitation of the multiple movable clamp seats 6. The top of the fixed clamp seat 5 and the movable clamp seat 6 are both installed with a clamp radial adjustment component 10, and the clamp fastening component 7 is installed on the top of the clamp radial adjustment component 10. The radial distance of the multiple clamp fastening components 7 relative to the clamp seat mounting rod 4 can be adjusted by the clamp radial adjustment component 10.

[0043] As attached Figure 1-Figure 6As shown, a substrate ball hinge seat 11 is fixedly installed on the top of the substrate 1, and hinge balls 12 are fixedly connected to both ends of the fixing rod 2. The fixing rod 2 is respectively hinged with the clamp base 3 and the substrate ball hinge seat 11 through the hinge balls 12 at both ends, so that the clamp seat mounting rod 4 can be moved to any position, and multiple clamp fastening components 7 can fix the pipes in the complex pipeline. The outer surface of the hinge ball 12 is provided with multiple criss-cross ball hinges. A ball hinge positioning groove 14 is provided on the inner side of the clamp base 3 and the base ball hinge seat 11. A ball hinge positioning block 15 is slidably installed in the ball hinge positioning groove 14. A ball hinge cross block 16 is fixedly connected to the side of the ball hinge positioning block 15 facing the hinge ball 12. A ball hinge positioning spring 17 is installed in the ball hinge positioning groove 14. The ball hinge cross block 16 is engaged with the ball hinge positioning groove 13, so that the hinge ball 12 can be fixedly engaged with the base 3 and the base 3. The clamp base 3 and the substrate ball hinge seat 11 maintain a relatively static state without applying external force. When the clamp base 3, the substrate ball hinge seat 11 and the hinge ball 12 rotate, the ball hinge positioning slot 13 can continuously move the ball hinge cross block 16, so that the ball hinge positioning block 15 moves toward the ball hinge positioning slot 14 and compresses the ball hinge positioning spring 17. The outer side of the clamp base 3 and the substrate ball hinge seat 11 and the ball hinge positioning spring 17 are connected to each other. There are threaded holes passing through the positioning grooves 14, and a ball hinge positioning bolt 18 is threadedly installed in each of the threaded holes. When the orientation of the clamp seat mounting rod 4 and the clamp fastening assembly 7 is adjusted to the right position, the ball hinge positioning bolt 18 can be screwed into the ball hinge positioning groove 14 to make it abut against the top of the ball hinge positioning block 15, so that the ball hinge cross block 16 is fixed in the ball hinge positioning slot 13. At this time, the hinge ball 12 is fixed to the clamp base 3 and the base plate ball hinge seat 11.

[0044] As attached Figure 1-Figure 3 , Figure 7 As shown, the middle part of the fixing rod 2 is broken into two parts, an upper part and an lower part, a square groove 19 is coaxially opened in the middle of the two broken surfaces of the fixing rod 2, a square rod 20 is slidably connected between the insides of the two square grooves 19, and external threads 21 are arranged on the outer sides of both ends of the broken position of the fixing rod 2, a telescopic inner screw sleeve 22 is threadedly installed between the two external threads 21, the thread directions of the two ends of the telescopic inner screw sleeve 22 are opposite, and the threads are matched with the external threads 21 at the corresponding end of the fixing rod 2. When the length of the fixing rod 2 needs to be adjusted, the telescopic inner screw sleeve 22 can be rotated to make the two parts of the fixing rod 2 move away from or close to each other, and the square rod 20 can make the two parts of the fixing rod 2 move circumferentially without rotating relative to each other.

[0045] As attached Figure 8-Figure 11As shown, the clamp radial adjustment assembly 10 includes a radial adjustment guide hole 23, a radial adjustment guide rod 24, a radial adjustment plate 25, a radial adjustment screw hole 26, and a radial adjustment bolt 27;

[0046] Two symmetrical radial adjustment guide holes 23 are respectively provided on the top of the fixed clamp seat 5 and the movable clamp seat 6, and radial adjustment guide rods 24 are slidably installed in the two radial adjustment guide holes 23, and a radial adjustment plate 25 is fixedly connected between the top ends of the two radial adjustment guide rods 24. When the radial adjustment plate 25 moves up and down, the radial adjustment guide rod 24 can move axially in the radial adjustment guide hole 23, and a radial adjustment screw hole 26 runs through the middle of the radial adjustment plate 25. A radial adjustment bolt 27 threadedly matched with the radial adjustment screw hole 26 is rotatably installed in the middle of the top surface of the fixed clamp seat 5 and the movable clamp seat 6. Rotating the radial adjustment bolt 27 can drive the radial adjustment plate 25 to move radially, and the radial adjustment plate 25 drives the clamp fastening assembly 7 to realize radial direction adjustment.

[0047] As attached Figure 1-Figure 4 , Figure 8-Figure 11 As shown, the clamp fastening assembly 7 includes a clamp rotating shaft 28, a clamp connecting plate 29, a first semicircular clamp 30, a second semicircular clamp 31, an annular bending portion 32, a semi-annular bending portion 33, a clamp screw shaft 34, a screw swinging groove 35, a clamp screw 36, a clamp fastening push rod 37, and a clamp fastening nut 38;

[0048] Two front-to-rear symmetrical clamp shafts 28 are rotatably mounted on the top of the radial adjustment plate 25. Clamp connecting plates 29 are fixedly connected to the outer sides of the two clamp rotating shafts 28. A first semicircular clamp 30 is fixedly connected to the top of one of the clamp connecting plates 29, and a second semicircular clamp 31 is fixedly connected to the top of the other clamp connecting plate 29. An annular bending portion 32 extends from the top of the first semicircular clamp 30 to its outer side surface, and semicircular bending portions 33 extend from both sides of the top of the second semicircular clamp 31 to its outer side surface. A clamp screw shaft 34 is coaxially mounted inside the annular bending portion 32, and a screw swinging groove 35 is provided in the middle of the annular bending portion 32, so that the clamp screw 36 can swing in the screw swinging groove 35 when the clamp screw shaft 34 rotates. A clamp screw 36 extending out of the screw swinging groove 35 is fixedly mounted on the outer side of the clamp screw shaft 34, and a clamp fastening push rod 37 is sleeved on the outer side of the clamp screw 36. Two clamp fastening nuts 38 respectively located on both sides of the clamp fastening push rod 37 are threadedly mounted on the outer side of the clamp screw 36;

[0049] As attached Figure 8-Figure 9As shown, when in use, the first semicircular clamp 30 and the second semicircular clamp 31 are respectively placed on both sides of the pipe and closed towards the middle, and then the clamp fastening push rod 37 is placed inside the semicircular bent portion 33. At this time, the clamp fastening nut 38 close to the free end of the clamp screw 36 can be used to squeeze the clamp fastening push rod 37 towards the inner direction of the semicircular bent portion 33, so that the annular bent portion 32 and the semicircular bent portion 33 are close to the middle, so that the first semicircular clamp 30 and the second semicircular clamp 31 can fix the pipe.

[0050] As attached Figure 4 , Fig. 9 , Fig.12 , Fig.13 As shown in FIG. 1 , a cross groove 39 is formed between the inner and outer sides of the top of the second semicircular clamp 31. The width of the top of the first semicircular clamp 30 is smaller than the width of the bottom. The width of the top of the first semicircular clamp 30 is the same as the width of the cross groove 39. Fig.11 As shown, when fixing a pipe with a smaller diameter, the top end of the first semicircular clamp 30 and the cross groove 39 can be crossed with each other. At this time, the clamp screw 36 can be rotated 180° to place the clamp fastening push rod 37 inside the semi-annular bent portion 33. The clamp fastening nut 38 away from the free end of the clamp screw 36 is used to push the clamp fastening push rod 37 toward the free end of the clamp screw 36, so that the annular bent portion 32 and the semi-annular bent portion 33 are moved away from each other on both sides, thereby achieving the fixation of the pipe with a smaller diameter without replacing clamps of different models.

[0051] As attached Figure 8-Figure 10As shown, the tops of the fixed clamp seat 5 and the movable clamp seat 6 are each provided with a plurality of circumferentially distributed angle adjustment guide holes 40, and the plurality of angle adjustment guide holes 40 are located on the extension lines of the circumferential direction of the two radial adjustment guide holes 23. The middle parts of the bottom surfaces of the two radial adjustment guide rods 24 are each provided with an angle adjustment positioning groove 41, and an angle adjustment cone block 42 is slidably installed in the angle adjustment positioning groove 41, and an angle adjustment spring 43 connected to the angle adjustment cone block 42 is installed in the angle adjustment positioning groove 41. When there is an angle between the pipeline and the clamp seat mounting rod 4, it is necessary to adjust the angle between the radial adjustment plate 25 and the clamp fastening assembly 7, so the radial adjustment screw can be rotated The bolt 27 drives the radial adjustment plate 25 to move upward, so that the lowest end of the radial adjustment guide rod 24 moves out of the radial adjustment guide hole 23. At this time, the radial adjustment plate 25 can be rotated, and the angle adjustment cone block 42 is squeezed into the angle adjustment positioning groove 41. When the angle adjustment cone block 42 reaches any angle adjustment guide hole 40, the angle adjustment cone block 42 is ejected by the angle adjustment spring 43 to achieve preliminary positioning. Then the radial adjustment bolt 27 can be rotated to drive the radial adjustment plate 25 to move downward, so that the radial adjustment guide rod 24 moves downward into the two angle adjustment guide holes 40, and the radial distance of the radial adjustment plate 25 is adjusted to achieve the angle adjustment of the clamp fastening assembly 7.

[0052] As attached Figure 8 , Figure 11-13 As shown, the clamp circumferential adjustment assembly 8 includes a rhombus continuous annular groove 44, a rhombus cone block 45, a circumferential positioning spring groove 46, a circumferential positioning spring 47, and a circumferential positioning push plate 48;

[0053] The right side surfaces of the fixed clamp seat 5 and the movable clamp seat 6 are both provided with a diamond-shaped continuous annular groove 44, and the diamond-shaped continuous annular groove 44 is composed of annularly distributed diamond-shaped grooves, and every two diamond-shaped grooves are connected. A plurality of diamond-shaped cone blocks 45 distributed in an annular manner are fixedly installed on the left side surfaces of the plurality of movable clamp seats 6. Circumferential positioning spring grooves 46 are coaxially provided on the left and right side surfaces of the fixed clamp seat 5 and the movable clamp seat 6. A circumferential positioning spring 47 is fixedly installed inside the circumferential positioning spring groove 46 on the left side surface of each movable clamp seat 6. A plurality of circumferentially distributed circumferential positioning push plates 48 are circumferentially slidably installed on the right end of the clamp seat mounting rod 4. When the plate 48 moves to the left, it can push the movable clamp seat 6 on the far right, so that multiple movable clamp seats 6 move to the left and compress the circumferential positioning spring 47. The diamond cone block 45 on the left side of each movable clamp seat 6 is inserted into the corresponding diamond continuous annular groove 44, thereby realizing the circumferential limitation of the movable clamp seat 6 and the clamp fastening assembly 7. When it is necessary to adjust the circumferential position of the clamp fastening assembly 7, the circumferential positioning push plate 48 is moved to the right. Under the elastic force of the circumferential positioning spring 47, multiple movable clamp seats 6 can move away from each other, so that the diamond cone block 45 is separated from the diamond continuous annular groove 44, and the movable clamp seat 6 and the clamp fastening assembly 7 can be moved circumferentially.

[0054] As attached Fig.14 As shown, the clamp circumferential positioning assembly 9 includes a push plate ring 49 coaxially fixedly installed on the outer side surface of the right end of the clamp seat mounting rod 4, and a plurality of circumferentially distributed push plate grooves 50 are opened between the left and right side surfaces of the push plate ring 49. The circumferential positioning push plate 48 is slidably installed in the push plate groove 50, and a push plate screw 51 is coaxially rotatably installed on the right end of the clamp seat mounting rod 4, and a push plate screw sleeve 52 is threadedly installed on the outer side of the push plate screw 51. The right ends of the plurality of circumferential positioning push plates 48 are fixedly connected to the left side surfaces of the push plate screw sleeve 52. Since the push plate screw sleeve 52 is fixedly connected to the circumferential positioning push plate 48, only when the push plate screw 51 is rotated can the push plate screw sleeve 52 be driven to move. When the push plate screw sleeve 52 moves to the left, the circumferential positioning push plate 48 can be driven to move to the left, and the plurality of movable clamp seats 6 can be pushed to move to the left.

[0055] As attached Figure 1 , Figure 4 , Fig.14As shown, a screw bevel gear 53 is coaxially fixedly installed on the outer side surface of the right end of the push plate screw 51, and can rotate synchronously with the push plate screw 51. A driving cylinder 54 is coaxially rotatably installed on the right side surface of the push plate ring 49. A driving hole 55 is penetrated through the outer side surface of the right end of the driving cylinder 54 toward the inside. A driving pin 56 is rotatably installed in the driving hole 55. The driving pin 56 is coaxially fixedly connected with a driving bevel gear 57 meshing with the screw bevel gear 53. A driving cross groove 58 is provided on the end surface of the driving pin 56 facing the outside of the driving cylinder 54. A plurality of circumferentially distributed toggle holes 59 are provided on the outer side surface of the driving cylinder 54. In order to facilitate the rotation of the driving pin 56 at various angles, the driving cylinder 54 is rotatably installed on the push plate ring 49. When in use, a plurality of toggle holes 59 can be toggled by a screwdriver, so that the driving cross groove 58 is facing the installer, and the driving bevel gear 57 is driven to move circumferentially when the driving cylinder 54 rotates. Since the push plate nut 52 cannot rotate, and the push plate nut 52 is threadedly connected with the push plate screw 51, there is a certain friction force. Therefore, when the driving cylinder 54 rotates, the driving bevel gear 57 rotates along the teeth of the screw bevel gear 53. When a screwdriver is used to cooperate with the driving cross groove 58 and rotate the driving pin 56, the screw bevel gear 53 can be driven to rotate through the driving bevel gear 57, thereby driving the push plate screw 51 to rotate, and the push plate screw 51 drives the push plate nut 52 and the circumferential positioning push plate 48 to move left and right, thereby realizing the limit constraint between the movable clamp seat 6.

[0056] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An aircraft engine pipeline fixing structure, comprising a base plate (1), characterized in that: A fixing rod (2) is installed on the top of the base plate (1), a clamp base (3) is installed on the other end of the fixing rod (2), a clamp seat mounting rod (4) is fixedly installed on the right side surface of the clamp base (3), a fixed clamp seat (5) is fixedly installed on the outer side of the clamp seat mounting rod (4), a plurality of movable clamp seats (6) located on the right side of the fixed clamp seat (5) are sleeved and installed on the outer side of the clamp seat mounting rod (4), a clamp fastening assembly (7) is installed on the top of the fixed clamp seat (5) and the plurality of movable clamp seats (6), a clamp circumferential adjustment assembly (8) is installed between the fixed clamp seat (5) and the plurality of movable clamp seats (6), a clamp circumferential positioning assembly (9) is installed on the right end of the clamp seat mounting rod (4), a clamp radial adjustment assembly (10) is installed on the top of the fixed clamp seat (5) and the movable clamp seat (6), and the clamp fastening assembly (7) is installed on the top of the clamp radial adjustment assembly (10); The clamp radial adjustment assembly (10) comprises a radial adjustment guide hole (23), a radial adjustment guide rod (24), a radial adjustment plate (25), a radial adjustment screw hole (26), and a radial adjustment bolt (27); The top of the fixed clamp seat (5) and the movable clamp seat (6) are respectively provided with two symmetrically positioned radial adjustment guide holes (23), and radial adjustment guide rods (24) are slidably installed in the two radial adjustment guide holes (23). A radial adjustment plate (25) is fixedly connected between the top ends of the two radial adjustment guide rods (24), and a radial adjustment screw hole (26) is passed through the middle of the radial adjustment plate (25). A radial adjustment bolt (26) threadedly matched with the radial adjustment screw hole (26) is rotatably installed in the middle of the top surface of the fixed clamp seat (5) and the movable clamp seat (6). 27), the top of the fixed clamp seat (5) and the movable clamp seat (6) are both provided with a plurality of circumferentially distributed angle adjustment guide holes (40), the plurality of angle adjustment guide holes (40) are located on the extension lines of the two radial adjustment guide holes (23) in the circumferential direction, the middle of the bottom surface of the two radial adjustment guide rods (24) are both provided with an angle adjustment positioning groove (41), an angle adjustment cone block (42) is slidably installed in the angle adjustment positioning groove (41), and an angle adjustment spring (43) connected to the angle adjustment cone block (42) is installed in the angle adjustment positioning groove (41); The clamp fastening assembly (7) comprises a clamp rotating shaft (28), a clamp connecting plate (29), a first semicircular clamp (30), a second semicircular clamp (31), an annular bending portion (32), a semi-annular bending portion (33), a clamp screw shaft (34), a screw swinging groove (35), a clamp screw (36), a clamp fastening push rod (37), and a clamp fastening nut (38); Two clamp rotating shafts (28) symmetrically arranged in front and rear positions are rotatably mounted on the top of the radial adjustment plate (25). The outer sides of the two clamp rotating shafts (28) are fixedly connected to clamp connecting plates (29). The top of one of the clamp connecting plates (29) is fixedly connected to a first semicircular clamp (30), and the top of the other clamp connecting plate (29) is fixedly connected to a second semicircular clamp (31). The top of the first semicircular clamp (30) has an annular bent portion (32) extending toward its outer side surface, and the top of the second semicircular clamp (31) has semicircular bent portions (33) extending toward its outer side surface on both sides. A clamp screw shaft (34) is coaxially rotatably mounted inside the annular bending portion (32), a screw swing groove (35) is provided in the middle of the annular bending portion (32), a clamp screw (36) extending out of the screw swing groove (35) is fixedly mounted on the outside of the clamp screw shaft (34), and the clamp screw (36) can swing in the screw swing groove (35) when the clamp screw shaft (34) rotates, a clamp fastening push rod (37) is sleeved on the outside of the clamp screw (36), and two clamp fastening nuts (38) are respectively located on both sides of the clamp fastening push rod (37) on the outside of the clamp screw (36); A cross groove (39) is provided between the inner and outer side surfaces of the top end of the second semicircular clamp (31); the width of the top end of the first semicircular clamp (30) is smaller than the width of the bottom end thereof; the width of the top end of the first semicircular clamp (30) is the same as the width of the cross groove (39).

2. The aircraft engine pipeline fixing structure according to claim 1, characterized in that: A substrate ball hinge seat (11) is fixedly mounted on the top of the substrate (1), and hinge balls (12) are fixedly connected to both ends of the fixing rod (2). The fixing rod (2) is respectively spherically hinged with the clamp base (3) and the substrate ball hinge seat (11) through the hinge balls (12) at both ends. A plurality of crisscrossing ball hinge positioning grooves (13) are provided on the outer surface of the hinge ball (12), and ball hinge positioning grooves (14) are provided on the inner side surfaces of the clamp base (3) and the substrate ball hinge seat (11). ), a ball hinge positioning block (15) is slidably installed in the ball hinge positioning groove (14), a ball hinge cross block (16) is fixedly connected to the side surface of the ball hinge positioning block (15) facing the hinge ball (12), a ball hinge positioning spring (17) is installed in the ball hinge positioning groove (14), and threaded holes are penetrated between the outer side surfaces of the clamp base (3) and the base ball hinge seat (11) and the ball hinge positioning groove (14) inside them, and a ball hinge positioning bolt (18) is threadedly installed in each of the threaded holes.

3. The aircraft engine pipeline fixing structure according to claim 2, characterized in that: The middle of the fixing rod (2) is broken into two parts, an upper part and an lower part. A square groove (19) is coaxially opened in the middle of the two broken surfaces of the fixing rod (2). A square rod (20) is slidably connected between the insides of the two square grooves (19). External threads (21) are provided on the outer surfaces of both ends of the broken position of the fixing rod (2). A telescopic inner thread sleeve (22) is threadedly installed between the two external threads (21).

4. The aircraft engine pipeline fixing structure according to claim 1, characterized in that: The clamp circumferential adjustment assembly (8) comprises a rhombus continuous annular groove (44), a rhombus cone block (45), a circumferential positioning spring groove (46), a circumferential positioning spring (47), and a circumferential positioning push plate (48); The right side surfaces of the fixed clamp seat (5) and the movable clamp seat (6) are both provided with a diamond-shaped continuous annular groove (44), the diamond-shaped continuous annular groove (44) is composed of annularly distributed diamond-shaped grooves, and every two diamond-shaped grooves are connected. The left side surfaces of the plurality of movable clamp seats (6) are each fixedly installed with a plurality of annularly distributed diamond-shaped cone blocks (45). The left and right side surfaces of the fixed clamp seat (5) and the movable clamp seat (6) are both coaxially provided with a circumferential positioning spring groove (46), and a circumferential positioning spring (47) is fixedly installed inside the circumferential positioning spring groove (46) on the left side surface of each movable clamp seat (6). The right end of the clamp seat mounting rod (4) is axially slidably installed with a plurality of circumferentially distributed circumferential positioning push plates (48).

5. The aircraft engine pipeline fixing structure according to claim 4, characterized in that: The clamp circumferential positioning assembly (9) includes a push plate ring (49) coaxially fixedly mounted on the outer side surface of the right end of the clamp seat mounting rod (4), a plurality of circumferentially distributed push plate grooves (50) are opened between the left and right side surfaces of the push plate ring (49), the circumferential positioning push plate (48) is slidably mounted in the push plate groove (50), a push plate screw (51) is coaxially rotatably mounted on the right end of the clamp seat mounting rod (4), a push plate screw sleeve (52) is threadedly mounted on the outer side of the push plate screw (51), and the right ends of the plurality of circumferential positioning push plates (48) are fixedly connected to the left side surface of the push plate screw sleeve (52).

6. The aircraft engine pipeline fixing structure according to claim 5, characterized in that: A screw bevel gear (53) is coaxially fixedly mounted on the outer surface of the right end of the push plate screw (51), and a driving cylinder (54) is coaxially rotatably mounted on the right side surface of the push plate ring (49). A driving hole (55) is penetrated through the outer surface of the right end of the driving cylinder (54) toward the inside, and a driving pin shaft (56) is rotatably mounted in the driving hole (55). The driving pin shaft (56) is coaxially fixedly connected to a driving bevel gear (57) meshing with the screw bevel gear (53). A driving cross groove (58) is provided on the end surface of the driving pin shaft (56) facing the outside of the driving cylinder (54), and a plurality of circumferentially distributed shifting holes (59) are provided on the outer surface of the driving cylinder (54).

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