CN219685429U - Aviation horizon instrument antifriction bearing installs auxiliary device - Google Patents
Aviation horizon instrument antifriction bearing installs auxiliary device Download PDFInfo
- Publication number
- CN219685429U CN219685429U CN202321247743.XU CN202321247743U CN219685429U CN 219685429 U CN219685429 U CN 219685429U CN 202321247743 U CN202321247743 U CN 202321247743U CN 219685429 U CN219685429 U CN 219685429U
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- sleeve
- rolling bearing
- magnetic attraction
- inner cylinder
- aerohorizon
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- 238000005096 rolling process Methods 0.000 claims abstract description 72
- 238000009434 installation Methods 0.000 claims abstract description 48
- 230000000452 restraining effect Effects 0.000 claims description 2
- 239000000306 component Substances 0.000 description 13
- 230000005389 magnetism Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of aviation instruments and meters, in particular to an aviation horizon instrument rolling bearing installation auxiliary device which comprises a sleeve, a pressing device, a magnetic attraction device and a constraint component. The structure of the utility model is centrosymmetric, the inner cylinder drives the magnetic attraction device to be close to the constraint component by applying force to the pressing head, and the rolling bearing is magnetically attracted, so that the rolling body is stabilized in the retainer, the force to the pressing head is released after the installation is completed, and the spring rebounds to drive the internal structure to recover. The structure can stabilize the rolling bodies in the retainer when the rolling bearing is installed, and can demagnetize to complete the installation when reaching the installation position, so that the force application is accurate and the installation is efficient.
Description
Technical Field
The utility model relates to the technical field of aviation instruments and meters, in particular to an aviation horizon instrument rolling bearing installation auxiliary device.
Background
The aerohorizon is also called as a gyroscopic horizon, and the pitching and tilting angles of the aircraft relative to the horizon can be measured by utilizing the axiality of the high-speed rotation of a gyroscopic rotor which is a core component of the aerohorizon. The working rotation speed of the gyro rotor reaches 20000r/min, and the slight unbalance of the rolling bearing of the gyro rotor can cause the violent shaking of the gyro rotor, so that the deviation of the pointer of the aerohorizon is caused, and the installation quality of the rolling bearing of the gyro rotor directly influences the reliability of the aerohorizon.
The rolling bearing for installation of the gyro rotor has the following installation modes because of the working characteristics: the inner ring is firstly arranged on the shaft, and then the outer ring, the rolling bodies and the retainer are integrally assembled on the inner ring. In the assembly process of the rolling bearing, the assembly body of the outer ring, the rolling bodies and the retainer needs to pass through the magnetic shaft, and the rolling bodies are very easy to be sucked out of the retainer under the magnetic force action of the magnetic shaft, so that the error installation of the rolling bearing is caused, and the reliability of the aerohorizon is directly influenced.
At present, the rolling bearing used by the gyro rotor is installed without a specific tool, and the installation speed is low while the installation stability of the gyro rotor cannot be guaranteed during installation, so that the device for reducing the installation difficulty of the rolling bearing of the gyro rotor of the aero-horizon, reducing the installation failure rate of the rolling bearing and improving the installation efficiency of the rolling bearing is designed, and the device is a technical problem which needs to be solved in the technology of installing the rolling bearing of the aero-horizon.
Disclosure of Invention
Aiming at the technical problems in the background art, the utility model aims to provide an auxiliary device for installing an aerohorizon rolling bearing, so as to solve the problem that rolling bodies are easy to be absorbed and separated by a magnetic shaft in the installation process of the rolling bearing of an aerohorizon gyro rotor.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the utility model provides an aviation horizon rolling bearing installs auxiliary device, includes sleeve, closing device, magnetism and inhale device and restraint subassembly, the inside closing device that is provided with of sleeve, the closing device bottom is connected with magnetism and inhale the device, restraint subassembly sets up in the sleeve bottom, and magnetism is inhaled the device and is arranged in inside restraint subassembly, closing device can be in sleeve axial motion to drive magnetism and inhale device and press close to or keep away from restraint subassembly, magnetism is inhaled device, restraint subassembly centre and is equipped with the through-hole structure that is used for the magnetism axle to pass.
Preferably, the method is characterized in that: the sleeve is of a through hole structure, the sleeve is arranged outside the pressing device, and one end of the sleeve is provided with a thread section and an inner annular retainer ring.
Preferably, the pressing device comprises a pressing head, a spring and an inner cylinder, wherein one end of the pressing head is provided with an inner threaded hole, the pressing head is connected with the inner cylinder through threads, one end of the spring is fixed on an inner annular retainer ring of the sleeve, and the other end of the spring is fixed at the bottom of the pressing head.
Preferably, the two ends of the inner cylinder are provided with thread sections, one end of the inner cylinder is connected with the pressing head, and the other end of the inner cylinder is connected with the magnetic attraction device.
Preferably, the magnetic attraction device comprises annular magnets and inner supporting frames, the annular magnets are fixedly connected to the three inner supporting frames, a threaded ring I is arranged at the other end of each inner supporting frame, and the inner supporting frames are fixedly connected with the inner cylinder through threads.
Preferably, the constraint assembly comprises an annular baffle and an outer support frame, the annular baffle is fixed on the three outer support frames, a threaded ring II is arranged on the other side of the outer support frame, and the constraint assembly is fixedly connected with the sleeve through threads.
Preferably, the radial dimensions of the inner supporting frame, the threaded ring I and the inner cylinder are the same.
Preferably, the radial dimensions of the outer support frame, the threaded ring II and the sleeve are the same.
Preferably, the compressing device, the magnetic attraction device, the sleeve, the restraining component and the center of the inner cylinder are coaxial.
The utility model has the following advantages and beneficial effects:
1. according to the utility model, the annular magnet can absorb the rolling bearing by pressing the pressing head and extruding the spring, meanwhile, the rolling body is ensured to be stable in the retainer, and the spring can rebound by pulling out the inner ring of the bearing on the magnetic shaft, and the device is reset. The device reduces the difficulty in installing the rolling bearing of the gyro rotor of the aerohorizon, reduces the fault rate of the installation of the rolling bearing, and improves the reliability of the aerohorizon.
2. In the utility model, other parts except the magnet are made of non-magnetic materials, so that the structure is simple, the assembly is convenient, the design is light and handy, and the hand-hold is convenient. The structure can stabilize the rolling bodies in the retainer when the rolling bearing is installed, and can demagnetize to complete the installation when reaching the installation position, so that the structure is simple to operate and the efficiency of bearing installation can be improved.
3. In the utility model, the transmission mode is mainly the contraction of the spring, and the operation is simple and the replacement is convenient.
Drawings
FIG. 1 is a three-dimensional view of a rolling bearing installation aid provided by the present utility model;
FIG. 2 is a cross-sectional view of the rolling bearing installation aid provided by the present utility model;
FIG. 3 is a block diagram of an inner cylinder of a rolling bearing installation auxiliary device provided by the utility model;
FIG. 4 is a block diagram of a magnetic attraction device of a rolling bearing installation auxiliary device provided by the utility model;
FIG. 5 is a block diagram of a rolling bearing installation aid restraint assembly provided by the present utility model;
FIG. 6 is a block diagram of a sleeve of a rolling bearing installation aid provided by the present utility model;
FIG. 7 is a block diagram of a pressing head of the auxiliary device for installing a rolling bearing provided by the utility model;
FIG. 8 is a schematic view of the spring mounting locations in the rolling bearing mounting aid provided by the present utility model;
icon: the device comprises a 1-constraint component, a 11-annular baffle, a 12-outer support frame, a 13-threaded ring II, a 2-magnetic attraction device, a 21-annular magnet, a 22-inner support frame, a 23-threaded ring I, a 3-sleeve, a 31-sleeve thread, a 32-annular retainer ring, a 4-pressing head, a 41-pressing head thread, a 5-inner cylinder, a 51-inner cylinder thread and a 6-spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1 and 2, the auxiliary device for installing the rolling bearing of the aerial horizon comprises a sleeve 3, a pressing device, a magnetic attraction device 2 and a constraint component 1, wherein the pressing device is arranged inside the sleeve 3, the bottom of the pressing device is connected with the magnetic attraction device 2, the constraint component 1 is arranged at the bottom of the sleeve 3, the magnetic attraction device 2 is arranged inside the constraint component 1, the pressing device can axially move in the sleeve 3 so as to drive the magnetic attraction device 2 to be close to or far away from the constraint component 1, a through hole structure for a magnetic shaft to penetrate is arranged between the magnetic attraction device 2 and the constraint component 1, the structure can stabilize rolling bodies in a retainer when the rolling bearing is installed, and when the rolling bearing reaches an installation position, the installation can be completed through demagnetizing, the operation is simple, and the efficiency of bearing installation can be improved.
When the rolling bearing is installed, the constraint component 1 is clung to the rolling bearing, the pressing head 4 is pressed down, the magnetic attraction device 2 is driven to be close to the constraint component 1, the rolling bearing is magnetically attracted, then the bearing installation auxiliary device and the rolling bearing integrally penetrate through the magnetic shaft to be installed, finally the magnetic attraction device 2 is far away from the constraint component 1, the magnetic shaft is reset after demagnetization, the bearing installation auxiliary device is removed, the installation difficulty of the rolling bearing of the gyro rotor of the aeroplane horizon is reduced, the installation failure rate of the rolling bearing is reduced, and the reliability of the aeroplane horizon is improved.
As a preferred mode of the present utility model, specific ones are:
as shown in fig. 4, the magnetic attraction device 2 comprises a ring magnet 21, an inner support 22 and a threaded ring i 23, wherein the ring magnet 21 is fixed at one end of the inner support 22, the threaded ring 23 is fixed at the other end of the inner support 22, and the radial sizes of the three parts are consistent, and the ring magnet 21 can magnetically attract rolling bodies in the rolling bearing so as to enable the rolling bodies to be stable in the holding frame.
As shown in fig. 3 and 4, the inner cylinder 5 is of a cylindrical structure with a through hole, threaded sections are arranged at two ends, the radial dimension of the magnetic attraction device 2 is consistent with that of the inner cylinder 5, the threaded ring I23 is connected with the threads of the inner cylinder 5 in a matched manner, and the inner cylinder 5 moves to drive the magnetic attraction device 2 to move.
As shown in fig. 5, the restraint assembly 1 includes an annular baffle 11, an outer support frame 12 and a threaded ring ii 13, one end of the outer support frame 12 is fixed with the annular baffle 11, the other end of the outer support frame 12 is fixed with the threaded ring ii 13, and the radial sizes of the three parts are consistent, and the restraint assembly 1 limits the movement range of the annular magnet 21.
As shown in fig. 5 and 6, the sleeve 3 has a cylindrical structure with a through hole, a threaded section and an inner ring retainer ring 32 are arranged at the bottom end of the sleeve 3, a threaded ring ii 13 in the restraint assembly 1 is matched and connected with the threaded section of the sleeve 3, and the connection body of the restraint assembly 1 and the sleeve 3 is fixed in the whole device.
As shown in fig. 3, 7 and 8, one side of the pressing head 4 is an internal threaded hole, the pressing head 4 and the inner cylinder 5 are connected through threads, a connector of the pressing head 4 and the inner cylinder 5 is placed in the sleeve 3, the pressing head 4 is pressed to drive the inner cylinder 5 to move downwards in the sleeve 3, the bottom end of the pressing head 4 and the inner cylinder 5 are connected through threads, the bottom end of the inner cylinder 5 is connected with a magnetic attraction device, a spring 6 is arranged in an annular cavity between the inner cylinder 5 and the sleeve 3, the bottom end of the spring 6 is fixed on an inner annular retainer ring 32 of the sleeve 3, the upper end of the spring 6 is tightly attached to the bottom end face of the pressing head 4, and the rebound of the spring 6 can drive a mechanism to reset.
As another preferable mode of the utility model, other parts are unchanged, threads are arranged in the sleeve 3, corresponding matched threads are arranged on the inner cylinder 5, the inner cylinder 5 axially moves in the sleeve 3 through the threads by rotating the pressing head 4, and the inner cylinder 5 drives the magnetic attraction device 2 to be close to and far away from the constraint component 1.
As another preferable mode of the utility model, a holding rod is added on the pressing head 4, other parts are unchanged, the spring 6 is removed, the inner cylinder 5 and the magnetic attraction device 2 do free falling motion in the sleeve 3, when the magnetic attraction device 2 is close to the constraint component 1, the rolling bearing can be magnetically attracted, the holding rod is pulled out during installation, the pressing head 4 drives the inner cylinder 5 to do axial motion in the sleeve 3, the inner cylinder 5 drives the magnetic attraction device 2 to be far away from the constraint component 1, and the magnetic force on the rolling bearing is removed, so that the installation is completed.
Working principle: in order to prevent rolling bodies from being sucked out by a magnetic shaft when the rolling bearing is installed, the annular baffle 11 is pressed close to the rolling bearing, the pressing head 4 is pressed, the spring 6 is compressed, the pressing head 4 drives the inner cylinder 5 and the magnetic attraction device 2 to axially move in the sleeve 3, the inner cylinder 5 drives the magnetic attraction device 2 to be close to the annular baffle 11, the bottom surface of the annular magnet 11 is enabled to be in contact with the top surface of the annular baffle 11, the rolling bearing is adsorbed on the bottom surface of the annular baffle 11, the rolling bodies are stabilized in the retainer, the aerohorizon rolling bearing installation auxiliary device is moved downwards along the central axis of the magnetic shaft until the rolling bearing reaches the installation position, after the installation of the rolling bearing is completed, the pressure of the pressing head 4 is slowly reduced to 0, and the aerohorizon rolling bearing installation auxiliary device is moved upwards along the central axis of the magnetic shaft and taken out. When the rolling bearing is arranged on the magnetic shaft, the hand is separated from the pressing head 4, the spring 6 rebounds to drive the inner cylinder 5 and the magnetic attraction device 2 to return to the original position, and the magnetic attraction of the rolling bearing disappears, so that the installation is completed.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The auxiliary device for installing the rolling bearing of the aviation horizon is characterized by comprising a sleeve, a compressing device, a magnetic attraction device and a constraint component, wherein the compressing device is arranged in the sleeve, the bottom of the compressing device is connected with the magnetic attraction device, the constraint component is arranged at the bottom of the sleeve, the magnetic attraction device is arranged in the constraint component, the compressing device can axially move in the sleeve, so that the magnetic attraction device is driven to be close to or far away from the constraint component, and a through hole structure for a magnetic shaft to pass through is arranged between the magnetic attraction device and the constraint component.
2. The aerohorizon rolling bearing installation assisting device according to claim 1, wherein: the sleeve is of a through hole structure, the sleeve is arranged outside the pressing device, and a threaded section and an inner annular retainer ring are arranged at the bottom end of the sleeve.
3. The aerohorizon rolling bearing installation assisting device according to claim 2, wherein: the compressing device comprises a pressing head, a spring and an inner cylinder, wherein the bottom end of the pressing head is connected with the inner cylinder, the bottom end of the inner cylinder is connected with a magnetic attraction device, the spring is arranged in an annular cavity between the inner cylinder and the sleeve, the bottom end of the spring is fixed on an inner annular baffle ring of the sleeve, and the upper end of the spring is tightly attached to the bottom end face of the pressing head.
4. An aerohorizon rolling bearing installation assisting device according to claim 3, wherein: the two ends of the inner cylinder are provided with thread segments, one end of the inner cylinder is in threaded connection with the pressing head, and the other end of the inner cylinder is in threaded connection with the magnetic attraction device.
5. The aerohorizon rolling bearing installation assisting device according to claim 4, wherein: the magnetic attraction device comprises annular magnets and inner supporting frames, the annular magnets are fixedly connected to the three inner supporting frames, a threaded ring I is arranged at the other end of each inner supporting frame, and the threaded ring I and the inner barrel are fixedly connected through threads.
6. The aerohorizon rolling bearing installation assisting device according to claim 1, wherein: the restraint subassembly includes annular baffle and outer support frame, and annular baffle is fixed on three outer support frames, and the opposite side of outer support frame is provided with screw thread ring II, screw thread ring II and sleeve pass through screw thread fixed connection.
7. The aerohorizon rolling bearing installation assisting device according to claim 5, wherein: the radial dimensions of the inner supporting frame, the threaded ring I and the inner barrel are the same.
8. The aerohorizon rolling bearing installation assisting device according to claim 6, wherein: the radial dimensions of the outer support frame, the threaded ring II and the sleeve are the same.
9. The aerohorizon rolling bearing installation assisting device according to claim 2, wherein: the center of the compressing device, the magnetic attraction device, the sleeve and the restraining component are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321247743.XU CN219685429U (en) | 2023-05-22 | 2023-05-22 | Aviation horizon instrument antifriction bearing installs auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321247743.XU CN219685429U (en) | 2023-05-22 | 2023-05-22 | Aviation horizon instrument antifriction bearing installs auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219685429U true CN219685429U (en) | 2023-09-15 |
Family
ID=87970612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321247743.XU Active CN219685429U (en) | 2023-05-22 | 2023-05-22 | Aviation horizon instrument antifriction bearing installs auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219685429U (en) |
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2023
- 2023-05-22 CN CN202321247743.XU patent/CN219685429U/en active Active
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