CN110877081A

CN110877081A - Closing-in device for ball bearing of airplane

Info

Publication number: CN110877081A
Application number: CN201811042466.2A
Authority: CN
Inventors: 索志刚
Original assignee: AVIC Guizhou Aircraft Co Ltd
Current assignee: AVIC Guizhou Aircraft Co Ltd
Priority date: 2018-09-05
Filing date: 2018-09-05
Publication date: 2020-03-13

Abstract

The utility model provides an aircraft ball bearing binding off device, including the guide shaft, the gyro wheel, the bolt, the ectosome, circular cushion, the guide shaft divide into rear end cylinder and front end cylinder, the location blind hole sets up on the rear end cylinder, the ectosome front end is provided with the axial hole, the ectosome is provided with the radial screw hole with bolt fastening, be provided with the hole in the gyro wheel, the guide shaft is connected and fixes a position through the location blind hole through the axial hole of its rear end cylinder with the ectosome, the hole of bolt and gyro wheel and the radial screw hole of ectosome are connected, be provided with on the gyro wheel with ball bearing frame slot interact's switching R. This aircraft ball bearing binding off device can close up fixedly to the ball bearing that has the slot on the bearing frame, and the binding off location is accurate, and the degree of depth of closing up is adjustable, can satisfy the binding off of the ball bearing of different specifications simultaneously, has avoided all being equipped with dedicated binding off device to the part of every ball bearing installation binding off, has practiced thrift manufacturing cost, has realized different specifications ball bearing binding off.

Description

Closing-in device for ball bearing of airplane

Technical Field

The invention relates to the technical field of installation of an aircraft ball bearing, in particular to a closing-in device of the aircraft ball bearing.

Background

The ball bearing has the performance advantages of small friction resistance, small power consumption, high mechanical efficiency, easy starting, size standardization and the like, is widely applied to an airplane mechanical transmission mechanism system, but has certain performance defects, the first ball bearing has smaller load bearing capacity, and the radial size of the first ball bearing is determined to be large; the second ball bearing has larger vibration and noise, and the structure of the bearing seat is determined to be more complex. Therefore, in order to maximize the use of ball bearings, ball bearings are fixed in the aerospace manufacturing industry by standards HB 0-37-2003. The fixing type and the fixing method of the ball bearing are related to the strength limit of a bearing seat material, a special closing device is required to be manufactured for the ball bearing of each specification, in order to reduce the occurrence of cracks, creases and tool marks in the closing process or the phenomenon that the bearing fixed in the bearing seat is not easy to rotate, the complex matching relation and the precision requirement of each part are required to be comprehensively considered when the closing device is manufactured, so the cost for manufacturing the closing device is higher, meanwhile, the special closing device is required to be manufactured for the ball bearing of each specification, and once the closing device of a certain specification is damaged, the production delivery progress of airplane parts is seriously influenced.

Disclosure of Invention

In order to solve the technical problem, the invention provides a closing device for ball bearings with different specifications, which is suitable for closing and fixing the ball bearings with different specifications and grooves on a bearing seat.

The utility model provides an aircraft ball bearing binding off device, including the guide shaft, the gyro wheel, the bolt, outer body and circular cushion, the guide shaft divide into rear end cylinder and front end cylinder, the location blind hole sets up on the rear end cylinder, the outer body front end is provided with the axial hole, the outer body be provided with bolt fastening's radial screw hole, be provided with the hole in the gyro wheel, the guide shaft is connected and fixes a position through the location blind hole through its rear end cylinder and outer body's axial hole, the hole of bolt and gyro wheel and the radial screw hole of outer body are connected, circular cushion sets up between gyro wheel and outer body, be provided with on the gyro wheel with ball bearing frame on slot interact's switching R.

Further, the closing device for the ball bearing of the airplane further comprises a stop screw, and the stop screw is arranged on the guide shaft.

The closing-in device for the ball bearing of the airplane has the advantages that the closing-in device for the ball bearing of the airplane can close and fix the ball bearing with the groove on the bearing seat, closing-in positioning is accurate, closing-in depth is adjustable, closing-in of the ball bearing with different specifications can be met, the problem that a special closing-in device is required to be arranged for parts with the closing-in of each ball bearing is avoided, production and manufacturing costs are saved, and the closing-in universalization of the ball bearings with different specifications is realized.

Drawings

FIG. 1: is a structural schematic diagram of the invention.

FIG. 2: is a right side view schematic diagram of the structure of the invention.

FIG. 3: is a schematic view of the structure of the guide shaft of the present invention.

FIG. 4: is a structural schematic diagram of the outer body of the invention.

FIG. 5: is a schematic structural diagram of the roller of the present invention.

FIG. 6: is a schematic structural sectional view of the roller of the present invention.

In the figure, 1, a guide shaft; 2. a roller; 3. a bolt; 4. an outer body; 5. a circular cushion block; 6. a set screw; 7. a front section cylinder; 8. positioning the blind hole; 9. a rear section cylinder; 10. an axial bore; 11. a radial threaded hole; 12. an inner bore; 13. and (4) transferring R.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

The utility model provides an aircraft ball bearing binding off device, including guide shaft 1, gyro wheel 2, bolt 3, outer body 4 and circular cushion 5, guide shaft 1 divide into rear end cylinder 7 and front end cylinder 9, location blind hole 8 sets up on rear end cylinder 7, outer body 4 front end is provided with axial hole 10, outer body 4 is provided with the radial screw hole 11 fixed with bolt 3, be provided with hole 12 in the gyro wheel 2, guide shaft 1 is connected and fixes a position through location blind hole 8 with outer body 4's axial hole 10 through its rear end cylinder 7, bolt 3 is connected with gyro wheel 2's hole 12 and outer body 4's radial screw hole 11, circular cushion 5 sets up between gyro wheel 2 and outer body 4, be provided with on the gyro wheel 2 with ball bearing frame slot interact's switching R13.

To fix the guide shaft 1 more firmly. The closing device for the ball bearing of the airplane further comprises a stop screw 6, and the stop screw 6 is arranged on the guide shaft 1.

When the guide shaft is used, firstly, the inner diameter size of the ball bearing is determined according to the specification of the ball bearing, the guide shaft 1 with the front end cylinder 9 and the ball bearing having the same outer diameter size is selected, the rear end cylinder 7 on the guide shaft 1 penetrates into the axial hole 10 of the outer body 4, and the stop screw 6 is screwed into the inner hole 12 on the outer body to fix the guide shaft 1. And secondly, selecting the roller 2 of the corresponding transfer R13 according to the depth of the groove on the bearing seat. And finally, selecting a cushion block 5 with a proper diameter from the groove on the bearing seat, sequentially penetrating the roller 2 and the cushion block 5 on the bolt 3, screwing the bolt 3, and checking and adjusting the sizes of the rollers 2 on two sides from the central shaft to be equal.

This aircraft ball bearing binding off device through being connected with the bench drill, starts the bench drill, makes 2 center pins of gyro wheel just in time align with the slot on the bearing frame to along the axis revolution round of ectosome 4, implement to the bearing frame of installation ball bearing and roll the binding off, through pressure transmission, make the bearing frame because the effect of centripetal force produces the plasticity turn-ups and warp, fix ball bearing in the bearing frame, one side binding off finishes, closes off to the another side again.

The protection scope of the invention is not limited to the technical scheme disclosed in the detailed implementation part, and all the parts of the device which are manufactured by adopting outer bodies with different appearances to perform closing-in fixing on the ball bearing and adopting different raw material specifications to meet different rigidity requirements of the bearing seat fall into the protection scope of the invention.

Claims

1. The utility model provides an aircraft ball bearing binding off device which characterized in that: the aircraft ball bearing closing-in device comprises a guide shaft (1), a roller (2), a bolt (3), an outer body (4) and a circular cushion block (5), wherein the guide shaft (1) is divided into a rear end cylinder (7) and a front end cylinder (9), a positioning blind hole (8) is formed in the rear end cylinder (7), an axial hole (10) is formed in the front end of the outer body (4), a radial threaded hole (11) fixed with the bolt (3) is formed in the outer body (4), an inner hole (12) is formed in the roller (2), the guide shaft (1) is connected with the axial hole (10) of the outer body (4) through the rear end cylinder (7) of the guide shaft and is positioned through the positioning blind hole (8), the bolt (3) is connected with the inner hole (12) of the roller (2) and the radial threaded hole (11) of the outer body (4), the circular cushion block (5) is arranged between the roller (2) and the outer body (4), and the roller (2) is provided with a switching R (13) which interacts with a groove on the ball bearing seat.

2. The aircraft ball bearing closing-in device according to claim 1, further comprising a stop screw (6), wherein the stop screw (6) is arranged on the guide shaft (1).