CN114535994A - Device is screwed up to axle intracavity pipeline bearing structure - Google Patents
Device is screwed up to axle intracavity pipeline bearing structure Download PDFInfo
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- CN114535994A CN114535994A CN202210265573.1A CN202210265573A CN114535994A CN 114535994 A CN114535994 A CN 114535994A CN 202210265573 A CN202210265573 A CN 202210265573A CN 114535994 A CN114535994 A CN 114535994A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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Abstract
The application relates to a device is screwed up to axle intracavity pipeline bearing structure, include: the positioning cylinder penetrates through the shaft cavity of the shaft, penetrates through the supporting cylinder in the shaft cavity and is provided with an opening on the side wall; the positioning nut is screwed at one end of the shaft, which is back to the tooth groove of the supporting cylinder; the positioning ring is sleeved on the positioning cylinder, is connected with the positioning nut and is provided with key teeth, and the key teeth are clamped into tooth grooves at the corresponding end of the shaft; a positioning block arranged at the opening part; one end of the positioning rod extends into the end of the positioning cylinder, which is opposite to the tooth socket of the supporting cylinder, and the end of the positioning rod is connected with the positioning block so as to drive the positioning block to rotate and enable the positioning block to extend out of or retract into the opening position; the torque-stopping cylinder is sleeved at the other end of the positioning cylinder, one end of the torque-stopping cylinder extends into the shaft cavity from the other end of the shaft, the end is provided with key teeth, and the key teeth are clamped into tooth grooves on the supporting cylinder; the knob barrel is sleeved on the periphery of the knob barrel, one end of the knob barrel extends into the shaft cavity from the corresponding end of the shaft, the end is provided with key teeth, and the key teeth are clamped into tooth grooves on the top tightening nut.
Description
Technical Field
The application belongs to the technical field of aero-engine low-pressure scroll shaft cavity leading-out air-entraining pipeline supporting structure screwing design, and particularly relates to a device for screwing a pipeline supporting structure in a shaft cavity.
Background
The bleed air pipeline is led out from a low-pressure turboshaft cavity of an aero-engine, and for reliably supporting the bleed air pipeline in the shaft cavity, a supporting cylinder, an expansion ring and a jacking nut are designed, wherein the supporting cylinder is sleeved on the bleed air pipeline, a gap is formed by the breakage of a certain part of the expansion ring and sleeved on the supporting cylinder, the jacking nut is in conical surface fit with the supporting cylinder, is in threaded connection with the supporting cylinder and jacks the expansion ring, so that the expansion ring is tensioned and abutted against the shaft cavity, and the reliable support of the bleed air pipeline is realized, as shown in fig. 1.
Aeroengine low pressure turboshaft intracavity is by a supporting cylinder, the ring rises, push up tight nut and constitute bleed pipeline bearing structure, when the assembly, need screw up the nut to pushing up, for the convenience of screwing up the nut to pushing up, set up the tooth's socket on the terminal surface of the one end of the ring that rises is dorsad to the nut that pushes up, and set up the tooth's socket near the one end of pushing up tight nut at a supporting cylinder, as shown in figure 2, when screwing up, insert the tooth's socket on the supporting cylinder with special frock, prevent that the supporting cylinder from taking place to rotate, insert the tooth's socket on the nut that pushes up with special frock, screw up the nut that pushes up, thereby make the ring rise to rise and tightly support and lean on in aeroengine low pressure turboshaft intracavity.
Screwing up the top nut of the air guide pipeline supporting structure in the shaft cavity of the low-pressure scroll of the aero-engine by using the current special tool, and having the following defects:
1) the expansion ring cannot be reliably positioned in the axial direction and the circumferential direction, the expansion ring is easy to displace in the axial direction and the circumferential direction in the process of screwing the jacking nut, scratch and scratch damage is easy to cause in a low-pressure turboshaft cavity of an aeroengine, and inclination is easy to occur;
2) the supporting cylinder, the expanding ring and the jacking nut are located in the deep position of a low-pressure turboshaft cavity of the aero-engine and limited by the space of the low-pressure turboshaft cavity of the aero-engine, the current special tool is difficult to reach, the supporting cylinder and the jacking nut cannot be reliably transmitted and twisted, the jacking nut is not reliable enough to be screwed, and the problem is particularly prominent when more protrusions are arranged in the low-pressure turboshaft cavity of the aero-engine.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide an intraluminal duct support structure tightening arrangement to overcome or alleviate at least one aspect of the known prior art deficiencies.
The technical scheme of the application is as follows:
a device is screwed up to axle intracavity pipeline bearing structure, includes:
the positioning cylinder penetrates through the shaft cavity of the shaft, penetrates through the supporting cylinder in the shaft cavity and is provided with an opening on the side wall;
the positioning nut is screwed at one end of the shaft, which is back to the tooth groove of the supporting cylinder;
the positioning ring is sleeved on the positioning cylinder, is connected with the positioning nut and is provided with key teeth, and the key teeth are clamped into tooth grooves at the corresponding end of the shaft;
a positioning block arranged at the opening part;
one end of the positioning rod extends into the end of the positioning cylinder, which is back to the tooth socket of the supporting cylinder, and the end of the positioning rod is connected with the positioning block so as to drive the positioning block to rotate, so that the positioning block can extend out or retract from the opening part and can be abutted against the end surface of one end of the expansion ring in the shaft cavity, which is back to the puller nut;
the torque-stopping cylinder is sleeved at the other end of the positioning cylinder, one end of the torque-stopping cylinder extends into the shaft cavity from the other end of the shaft, the end is provided with key teeth, and the key teeth are clamped into tooth grooves on the supporting cylinder;
the knob barrel is sleeved on the periphery of the knob barrel, one end of the knob barrel extends into the shaft cavity from the corresponding end of the shaft, the end is provided with key teeth, and the key teeth are clamped into tooth grooves on the top tightening nut.
According to at least one embodiment of the present application, in the above device for tightening a supporting structure of an in-lumen pipeline, a positioning hole is formed in a side wall of the positioning cylinder, and the positioning hole is in a strip shape and extends in an axial direction of the positioning cylinder;
the side wall of the torque-stopping cylinder is provided with a torque-stopping hole;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
and the torque-stopping pin is arranged in the positioning hole and the torque-stopping hole.
According to at least one embodiment of the present application, the above-mentioned device for tightening a support structure for an intraluminal pipeline further includes:
the torque-stopping nut is screwed at one end of the positioning cylinder close to the torque-stopping cylinder;
one end of the anti-torsion sliding block extends into the positioning cylinder and is connected with the anti-torsion pin;
and one end of the torque-stopping spring extends into the torque-stopping nut, the end abuts against the bottom wall of the torque-stopping nut, and the other end of the torque-stopping spring abuts against the torque-stopping slider, so that the key teeth on the torque-stopping cylinder are kept clamped in the tooth grooves on the supporting cylinder.
According to at least one embodiment of the present application, in the above-described device for tightening a pipe support structure in an axial cavity, a side wall of the torque nut has a strip-shaped guide groove extending in an axial direction thereof;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
and the guide pin is arranged in the strip-shaped guide groove and connected to the torque-stopping slide block.
According to at least one embodiment of the application, in the above device for tightening the supporting structure of the conduit inside the axial cavity, the positioning block is provided with a protruding part which can be clamped on the lacking edge of the expansion ring when the positioning block abuts against the end face of the end, back to the tightening nut, of the expansion ring;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
the positioning seat is provided with a through hole, sleeved on the positioning cylinder and provided with an arc-shaped sliding chute;
and the positioning screw penetrates through the arc-shaped sliding groove and is in threaded connection with the positioning nut and the positioning ring.
According to at least one embodiment of the present application, the above-mentioned device for tightening a support structure for an intraluminal pipeline further includes:
the supporting seat is connected to one end, back to the tooth grooves of the supporting cylinder, of the positioning cylinder, and is provided with a supporting hole, a first anti-rotation hole and a second anti-rotation hole;
the anti-rotation block is connected with one end of the positioning rod, which is back to the positioning block, through the supporting hole;
the anti-rotation pin is connected to the anti-rotation block;
the anti-rotation seat is provided with a strip-shaped anti-rotation groove, a first anti-rotation protrusion and a second anti-rotation protrusion; the strip-shaped anti-rotation groove extends along the axial direction of the positioning rod and is sleeved on the anti-rotation pin; wherein the content of the first and second substances,
when the first anti-rotation protrusion is inserted into the first anti-rotation hole and the second anti-rotation protrusion is inserted into the second anti-rotation hole, the positioning block extends out of the opening;
when the first anti-rotation protrusion is separated from the second anti-rotation hole, the positioning block retracts from the opening part.
According to at least one embodiment of the present application, in the fastening device for an intraluminal pipeline support structure, the rotation preventing block is provided with a rotation preventing hole, and the rotation preventing hole is provided with a protruding part;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
the anti-rotation bolt is screwed at one end of the anti-rotation block, which is back to the positioning rod, through the anti-rotation hole;
the anti-rotation spring is sleeved on the anti-rotation bolt and is abutted between the head of the anti-rotation bolt and the convex part in the anti-rotation hole, so that the anti-rotation seat is kept abutted on the supporting seat.
According to at least one embodiment of the present application, the above-mentioned device for tightening a support structure for an intraluminal pipeline further includes:
the support ring is sleeved on the periphery of the knob barrel, and a lock hole is formed in the side wall of the support ring;
the lock pin is connected to the support ring and clamped in the end teeth at the corresponding end of the shaft;
one end of the lock rod is connected with a nut, the other end of the lock rod penetrates through the lock hole to extend into the shaft cavity, the end is provided with a protruding part, the protruding part can protrude or retract into the radial range of the support ring by rotating the protruding part, and the lock rod can abut against the protruding part in the shaft cavity when protruding out of the radial range of the support ring.
According to at least one embodiment of the present application, the above-mentioned device for tightening a support structure for an intraluminal pipeline further includes:
and the bracket supports the support ring.
Drawings
FIG. 1 is a schematic diagram of a prior art support structure for supporting an outgoing bleed air duct in a low-pressure turboshaft cavity of an aircraft engine;
FIG. 2 is a schematic view of an internal air guide duct support structure of a low-pressure scroll shaft cavity of a conventional aircraft engine;
FIG. 3 is a schematic view of the expander;
FIG. 4 is a schematic view of an intraluminal pipeline support structure tightening arrangement provided by an embodiment of the present application;
FIG. 5 is a view from the direction A of FIG. 4;
FIG. 6 is a sectional view taken along line B-B of FIG. 4;
wherein:
1-a positioning cylinder; 2-axis; 3-a support cylinder; 4-positioning the nut; 5-a positioning ring; 6-positioning blocks; 7-positioning the rod; 8-an expansion ring; 9-tightening the nut; 10-a torque-stopping cylinder; 11-a knob barrel; 12-a torque-stop pin; 13-torque-stop screw cap; 14-a torque-stop slider; 15-a torsion-stop spring; 16-a guide pin; 17-positioning seats; 18-set screws; 19-a support seat; 20-anti-rotation block; 21-anti-rotation pins; 22-transposition prevention; 23-anti-rotation bolts; 24-anti-rotation springs; 25-a support ring; 26-a locking pin; 27-a locking bar; 28-bracket.
For a better understanding of the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced, and do not represent actual product dimensions, and the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that devices or elements must have specific orientations, be constructed and operated in specific orientations, and that when the absolute position of an object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 6.
The utility model provides a device is screwed up to axle intracavity pipeline bearing structure, includes:
the positioning cylinder 1 penetrates through a shaft cavity of the shaft 2, penetrates through a supporting cylinder 3 in the shaft cavity, and is provided with an opening on the side wall;
the positioning nut 4 is screwed at one end of the shaft 2, which is back to the tooth grooves of the supporting cylinder 3;
the positioning ring 5 is sleeved on the positioning cylinder 1, is connected with the positioning nut 4 and is provided with key teeth, and the key teeth are clamped into tooth grooves at the corresponding end of the shaft 2;
a positioning block 6 provided at the opening portion;
one end of the positioning rod 7 extends into the end of the positioning cylinder 1, which is back to the tooth socket of the supporting cylinder 3, and the end is connected with the positioning block 6 so as to drive the positioning block 6 to rotate, so that the positioning block 6 can extend out or retract from the opening part, and can be abutted against the end surface of one end, which is back to the jacking nut 9, of the shaft cavity inner expanding ring 8 when extending out;
the torque-stopping cylinder 10 is sleeved at the other end of the positioning cylinder 1, one end of the torque-stopping cylinder extends into the shaft cavity from the other end of the shaft 2, and the end is provided with key teeth which are clamped into tooth grooves on the supporting cylinder 3;
and the knob barrel 11 is sleeved on the periphery of the knob barrel 10, one end of the knob barrel extends into the shaft cavity from the corresponding end of the shaft 2, and the end is provided with key teeth which are clamped into tooth grooves on the top tightening nut 9.
The device for screwing the pipeline supporting structure in the shaft cavity disclosed by the embodiment is convenient and quick, wherein the shaft can be a low-pressure vortex shaft of an aero-engine, the pipeline can be a gas-guiding pipeline led out from the shaft cavity of the low-pressure vortex shaft of the aero-engine, and when the tightening nut 9 in the shaft cavity is screwed, the tightening nut 9 can be pressed against the expansion ring 8 by only holding the torque-stopping cylinder 10 and rotating the torque-stopping cylinder 11.
To the pipe support structure screwing device in the axial cavity disclosed by the embodiment, a person skilled in the art can understand that when the tightening nut 9 in the axial cavity is screwed, the positioning block 6 is abutted against the end face of one end of the tightening nut 9, back to the axial cavity inner expanding ring 8, of the positioning block 6, so that the expanding ring 8 can be prevented from moving forwards in the axial direction, the axial scraping and rubbing in the axial cavity can be avoided, and the axial positioning of the expanding ring 8 in the axial cavity can be ensured.
For the device for screwing the pipeline supporting structure in the shaft cavity disclosed in the above embodiment, it can be further understood by those skilled in the art that the positioning nut 4 is screwed on one end of the shaft 2, which is away from the tooth grooves of the supporting cylinder 3, to realize the positioning of the positioning cylinder 1 along the axial direction of the shaft 2, and the key teeth on the positioning ring 5 are clamped into the tooth grooves on the corresponding end of the shaft 2, so as to realize the positioning of the positioning cylinder 1 along the circumferential direction of the shaft 2, and reliably provide positioning support for the action of the whole device.
To the pipe support structure tightening device in the shaft cavity disclosed by the above embodiment, technical personnel in the field can also understand that, in order to avoid the protrusion interference existing in the shaft cavity, the positioning cylinder 1 is penetrated through the shaft cavity to set up the process, so that the positioning block 6 can retract from the opening part, after the protrusion interference existing in the shaft cavity is avoided, the positioning block 6 extends out from the opening part, and is abutted against the end surface of one end of the expansion ring 8 in the shaft cavity, which is back to the jacking nut 9, so as to tighten the jacking nut 9 in the shaft cavity.
In some alternative embodiments, in the above-mentioned device for tightening the conduit supporting structure in the axial cavity, the positioning cylinder 1 has a positioning hole on a side wall thereof, and the positioning hole is in a strip shape and extends in an axial direction of the positioning cylinder 1;
the side wall of the torque-stopping cylinder 10 is provided with a torque-stopping hole;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
the anti-twist pin 12 is arranged in the positioning hole and the anti-twist hole, so that the anti-twist cylinder 10 is fixed, the circumferential position between the anti-twist cylinder 10 and the positioning cylinder 1 is fixed, the rotation of the support cylinder 3 along with the jacking nut 9 in the circumferential direction is prevented from rotating in the rotating process of the anti-twist cylinder 11, and the effective screwing of the jacking nut 9 cannot be realized.
To the disclosed device for screwing up pipeline supporting structure in shaft cavity of the above embodiment, technical personnel in the field can understand that, in the process of screwing up the jacking nut 9 in the jacking shaft cavity by the knob cylinder 11, because the positioning block 6 is abutted against the end face of one end of the jacking nut 9 backed by the shaft cavity internal expanding ring 8, the expanding ring 8 can be prevented from moving forward along the axial direction, the supporting cylinder 3 can move backward under the action of the jacking nut 9, the positioning hole on the side wall of the positioning cylinder 1 is designed to be in a bar shape, the axial extension along the positioning cylinder 1 can enable the knob cylinder 10 to move along the axial direction, and interference is not generated on the supporting cylinder 3.
In some optional embodiments, the above device for tightening an intraluminal pipeline support structure further includes:
the torque-stopping nut 13 is screwed at one end of the positioning cylinder 1 close to the torque-stopping cylinder 10;
one end of the anti-torsion sliding block 14 extends into the positioning barrel 1 and is connected with the anti-torsion pin 12;
one end of the torque-stopping spring 15 extends into the torque-stopping nut 13, the end abuts against the bottom wall of the torque-stopping nut 13, the other end of the torque-stopping spring abuts against the torque-stopping slider 14, so that the key teeth on the torque-stopping cylinder 10 are kept clamped in the tooth grooves on the supporting cylinder 3, and the torque-stopping spring can self-adapt to backward movement of the supporting cylinder 3 in the process of screwing the nut 9 in the shaft cavity.
In some alternative embodiments, in the above-mentioned device for tightening the intraluminal pipeline support structure, the side wall of the torque-stopping nut 13 has a strip-shaped guide groove extending in the axial direction thereof;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
and a guide pin 16 arranged in the strip-shaped guide groove and connected to the anti-twist slider 14.
In some alternative embodiments, in the above-mentioned device for tightening the supporting structure of the conduit inside the axial cavity, the positioning block 6 has a protruding portion which can be locked on the lacking edge of the expanding ring 8 when the positioning block 6 abuts against the end surface of the expanding ring 8 opposite to the end of the tightening nut 9;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
the positioning seat 17 is provided with a through hole, sleeved on the positioning cylinder 1 and provided with an arc-shaped sliding chute;
and the positioning screw 18 penetrates through the arc-shaped sliding groove and is in threaded connection with the positioning nut 4 and the positioning ring 5.
To the pipeline supporting structure screwing device in the axial cavity disclosed in the above embodiment, as can be understood by those skilled in the art, the expansion ring 8 is designed to have a notch, and when the jacking nut 9 in the axial cavity is screwed, the protrusion part on the positioning block 6 is clamped on the notch of the expansion ring 8, so that the expansion ring 8 can be prevented from rotating along the circumferential direction, and the scraping and rubbing along the circumferential direction in the axial cavity can be avoided.
To the device for screwing up the pipeline supporting structure in the axial cavity disclosed by the above embodiment, a person skilled in the art can understand that the positioning seat 17 sleeved on the positioning cylinder 1 is designed to have an arc-shaped chute so as to pass through the positioning screw 18 of the arc-shaped chute, so that the connection among the positioning nut 4, the positioning ring 5 and the positioning seat 17 is realized, the positioning screw 18 is loosened, the positioning cylinder 1 is driven to rotate by the rotation of the positioning seat 17 conveniently, the position of the positioning block 6 in the circumferential direction is adjusted by adjusting the angle of the upper opening part of the positioning block, and the protruding part on the positioning block 6 is conveniently aligned and clamped on the lacking edge of the expansion ring 8.
In some optional embodiments, the above device for tightening an intraluminal pipeline support structure further includes:
the supporting seat 19 is connected to one end, back to the tooth grooves of the supporting cylinder 3, of the positioning cylinder 1, and is provided with a supporting hole, a first anti-rotation hole and a second anti-rotation hole;
the anti-rotation block 20 is connected with one end of the positioning rod 7, which is back to the positioning block 6, through the supporting hole;
an anti-rotation pin 21 connected to the anti-rotation block 20;
the anti-rotation seat 22 is provided with a strip-shaped anti-rotation groove, a first anti-rotation protrusion and a second anti-rotation protrusion; the strip-shaped anti-rotation groove extends along the axial direction of the positioning rod 7 and is sleeved on the anti-rotation pin 21; wherein the content of the first and second substances,
when the first anti-rotation protrusion is inserted into the first anti-rotation hole and the second anti-rotation protrusion is inserted into the second anti-rotation hole, the positioning block 6 extends out of the opening part;
when the first anti-rotation protrusion is separated from the second anti-rotation hole, the positioning block 6 is retracted from the opening part.
In some alternative embodiments, in the above-mentioned device for tightening the supporting structure of the conduit inside the axial cavity, the anti-rotation seat 22 has an anti-rotation hole, and the anti-rotation hole has a protruding portion;
the device for screwing up the pipe support structure in the shaft cavity further comprises:
the anti-rotation bolt 23 is screwed at one end of the anti-rotation block 20, which is opposite to the positioning rod 7, through an anti-rotation hole;
the anti-rotation spring 24 is sleeved on the anti-rotation bolt 23 and abuts against the head of the anti-rotation bolt 23 and the convex part in the anti-rotation hole, so that the anti-rotation seat 22 is kept abutting against the support seat 19.
As for the tightening device for the pipeline supporting structure in the axial cavity disclosed in the above embodiment, it can be understood by those skilled in the art that when the position relationship between the first anti-rotation protrusion and the second anti-rotation protrusion and the first anti-rotation hole and the second anti-rotation hole is adjusted, the anti-rotation seat 22 can be pulled outwards to separate the anti-rotation seat 22 from the supporting seat 19, the first anti-rotation protrusion and the second anti-rotation protrusion are separated from the range of the first anti-rotation hole and the second anti-rotation hole, the anti-rotation seat 22 is rotated to adjust the position relationship between the first anti-rotation protrusion and the second anti-rotation protrusion and the first anti-rotation hole and the second anti-rotation hole, after the adjustment is in place, the anti-rotation seat 22 is loosened, and under the action of the anti-rotation spring 24, the anti-rotation seat 22 can automatically abut against the supporting seat 19.
In some optional embodiments, the above device for tightening an intraluminal pipeline support structure further includes:
the support ring 25 is sleeved on the periphery of the knob barrel 11, and a lock hole is formed in the side wall of the support ring;
the lock pin 26 is connected to the support ring 25 and clamped in the end teeth at the corresponding end of the shaft 2, so that the circumferential positions of the support ring 25 and the shaft 2 are fixed;
one end of the lock rod 27 is connected with a nut, the other end of the lock rod passes through the lock hole and extends into the shaft cavity, the end is provided with a protruding part, the protruding part can protrude or retract into the radial range of the support ring 25 by rotating the protruding part, the lock rod can abut against the protruding part in the shaft cavity when protruding out of the radial range of the support ring 25, the axial position of the support ring 25 and the shaft 2 is fixed by matching with the lock pin 26, and when the lock rod retracts into the radial range of the support ring 25, protruding interference existing in the shaft cavity can be avoided conveniently, and the lock rod extends into the axial direction.
In some optional embodiments, the above device for tightening an intraluminal pipeline support structure further includes:
and a bracket 28 supporting the support ring 25.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (9)
1. The utility model provides a device is screwed up to axle intracavity pipeline bearing structure which characterized in that includes:
the positioning cylinder (1) penetrates through a shaft cavity of the shaft (2), penetrates through the supporting cylinder (3) in the shaft cavity, and is provided with an opening on the side wall;
the positioning nut (4) is screwed at one end of the shaft (2) back to the tooth grooves of the supporting cylinder (3);
the positioning ring (5) is sleeved on the positioning barrel (1), is connected with the positioning nut (4), and is provided with key teeth which are clamped into tooth grooves at the corresponding end of the shaft (2);
a positioning block (6) provided at the opening portion;
one end of the positioning rod (7) extends into the positioning cylinder (1) from the end back to the tooth socket of the supporting cylinder (3), and the end of the positioning rod is connected with the positioning block (6) so as to drive the positioning block (6) to rotate, so that the positioning block (6) can extend out or retract from the opening part and can be abutted against the end surface of one end of the shaft cavity inner expanding ring (8) back to the puller nut (9) when extending out;
the torque-stopping cylinder (10) is sleeved at the other end of the positioning cylinder (1), one end of the torque-stopping cylinder extends into the shaft cavity from the other end of the shaft (2), the end is provided with key teeth, and the key teeth are clamped into tooth grooves on the supporting cylinder (3);
and the knob barrel (11) is sleeved on the periphery of the knob barrel (10), one end of the knob barrel extends into the shaft cavity from the corresponding end of the shaft (2), the end is provided with key teeth, and the key teeth are clamped into tooth grooves on the top tightening nut (9).
2. The intraluminal pipeline support structure tightening device of claim 1,
the side wall of the positioning cylinder (1) is provided with a positioning hole which is in a strip shape and extends along the axial direction of the positioning cylinder (1);
the side wall of the torque-stopping cylinder (10) is provided with a torque-stopping hole;
the device for tightening the pipe support structure in the axial cavity further comprises:
and the torsion-stopping pin (12) is arranged in the positioning hole and the torsion-stopping hole.
3. The intraluminal pipeline support structure tightening device of claim 1,
further comprising:
the torque-stopping nut (13) is screwed at one end, close to the torque-stopping cylinder (10), of the positioning cylinder (1);
one end of the anti-torsion sliding block (14) extends into the positioning cylinder (1) and is connected with the anti-torsion pin (12);
and one end of the torque-stopping spring (15) extends into the torque-stopping nut (13), abuts against the bottom wall of the torque-stopping nut (13), and abuts against the torque-stopping slider (14) at the other end, so that the key teeth on the torque-stopping cylinder (10) are kept clamped in the tooth grooves on the support cylinder (3).
4. The intraluminal pipeline support structure tightening device of claim 3,
the side wall of the torque-stopping nut (13) is provided with a strip-shaped guide groove extending along the axial direction of the torque-stopping nut;
the device for tightening the support structure for the intraluminal duct further comprises:
and the guide pin (16) is arranged in the strip-shaped guide groove and is connected to the torsion-stopping slide block (14).
5. The intraluminal pipeline support structure tightening device of claim 1,
the positioning block (6) is provided with a protruding part which can be clamped on the lacking edge of the expansion ring (8) when the positioning block (6) is abutted against the end face of one end of the expansion ring (8) back to the jacking nut (9);
the device for tightening the pipe support structure in the axial cavity further comprises:
the positioning seat (17) is provided with a through hole, sleeved on the positioning cylinder (1) and provided with an arc-shaped sliding chute;
and the positioning screw (18) penetrates through the arc-shaped sliding groove and is in threaded connection with the positioning nut (4) and the positioning ring (5).
6. The intraluminal pipeline support structure tightening device of claim 1,
further comprising:
the supporting seat (19) is connected to one end, back to the tooth grooves of the supporting cylinder (3), of the positioning cylinder (1), and is provided with a supporting hole, a first anti-rotation hole and a second anti-rotation hole;
the anti-rotation block (20) is connected with one end, back to the positioning block (6), of the positioning rod (7) through the support hole;
the anti-rotation pin (21) is connected to the anti-rotation block (20);
the anti-rotation seat (22) is provided with a strip-shaped anti-rotation groove, a first anti-rotation protrusion and a second anti-rotation protrusion; the strip-shaped anti-rotation groove extends along the axial direction of the positioning rod (7) and is sleeved on the anti-rotation pin (21); wherein the content of the first and second substances,
the first anti-rotation protrusion is inserted into the first anti-rotation hole, and when the second anti-rotation protrusion is inserted into the second anti-rotation hole, the positioning block (6) extends out of the opening part;
when the first anti-rotation protrusion is separated from the second anti-rotation hole, the positioning block (6) retracts from the opening part.
7. The intraluminal pipeline support structure tightening device of claim 6,
an anti-rotation hole is formed in the anti-rotation seat (22), and a protruding part is arranged in the anti-rotation hole;
the device for tightening the support structure for the intraluminal duct further comprises:
the anti-rotation bolt (23) is in screwed connection with one end, back to the positioning rod (7), of the anti-rotation block (20) through the anti-rotation hole;
and the anti-rotation spring (24) is sleeved on the anti-rotation bolt (23) and is abutted between the head of the anti-rotation bolt (23) and the convex part in the anti-rotation hole, so that the anti-rotation seat (22) is kept abutted on the supporting seat (19).
8. The intraluminal pipeline support structure tightening device of claim 1,
further comprising:
the support ring (25) is sleeved on the periphery of the knob barrel (11), and a lock hole is formed in the side wall of the support ring;
the locking pin (26) is connected to the support ring (25) and clamped in the end tooth at the corresponding end of the shaft (2);
and one end of the lock rod (27) is connected with a nut, the other end of the lock rod penetrates through the lock hole to extend into the shaft cavity, the end is provided with a protruding part, the protruding part can protrude or retract into the radial range of the support ring (25) by rotating the protruding part, and the lock rod can abut against the protruding part in the shaft cavity when protruding out of the radial range of the support ring (25).
9. The intraluminal pipeline support structure tightening apparatus of claim 8,
further comprising:
a bracket (28) supporting the support ring (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210265573.1A CN114535994B (en) | 2022-03-17 | 2022-03-17 | Device is screwed up to axle intracavity pipeline bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210265573.1A CN114535994B (en) | 2022-03-17 | 2022-03-17 | Device is screwed up to axle intracavity pipeline bearing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114535994A true CN114535994A (en) | 2022-05-27 |
| CN114535994B CN114535994B (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210265573.1A Active CN114535994B (en) | 2022-03-17 | 2022-03-17 | Device is screwed up to axle intracavity pipeline bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114535994B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142165Y (en) * | 1992-06-25 | 1993-09-15 | 杨法增 | Multi-function quick-acting butterfly valve |
| JPH11182523A (en) * | 1997-12-17 | 1999-07-06 | Kawasaki Heavy Ind Ltd | Fastening bolt |
| CN202592313U (en) * | 2012-04-27 | 2012-12-12 | 玉柴联合动力股份有限公司 | Internal-tension self-locking bearing drawing tool |
| CN112045615A (en) * | 2019-06-06 | 2020-12-08 | 中国航发商用航空发动机有限责任公司 | Assembly tool for inner guide pipe of turbine shaft |
| CN112276539A (en) * | 2019-07-25 | 2021-01-29 | 中国航发商用航空发动机有限责任公司 | Device and method for screwing nut of aircraft engine |
-
2022
- 2022-03-17 CN CN202210265573.1A patent/CN114535994B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142165Y (en) * | 1992-06-25 | 1993-09-15 | 杨法增 | Multi-function quick-acting butterfly valve |
| JPH11182523A (en) * | 1997-12-17 | 1999-07-06 | Kawasaki Heavy Ind Ltd | Fastening bolt |
| CN202592313U (en) * | 2012-04-27 | 2012-12-12 | 玉柴联合动力股份有限公司 | Internal-tension self-locking bearing drawing tool |
| CN112045615A (en) * | 2019-06-06 | 2020-12-08 | 中国航发商用航空发动机有限责任公司 | Assembly tool for inner guide pipe of turbine shaft |
| CN112276539A (en) * | 2019-07-25 | 2021-01-29 | 中国航发商用航空发动机有限责任公司 | Device and method for screwing nut of aircraft engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114535994B (en) | 2022-12-20 |
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