CN102489641A

CN102489641A - Three-roll rolling backlash device for integral self-lubricated oscillating bearing

Info

Publication number: CN102489641A
Application number: CN201110362486XA
Authority: CN
Inventors: 陈继刚; 杨育林; 李萌
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2011-11-16
Filing date: 2011-11-16
Publication date: 2012-06-13
Anticipated expiration: 2031-11-16
Also published as: CN102489641B

Abstract

The invention relates to a three-roll rolling backlash device for an integral self-lubricated oscillating bearing, which comprises a framework base, two framework fixing supports, three chute supports, a three-roll shaft system, feeding rotary discs and three rolls, wherein the two framework fixing supports are mounted at two ends of the framework base, the chute supports are fixed in the framework fixing supports, the feeding rotary discs are mounted between the two framework fixing supports, and the three rolls are mounted at the front end of the three-roll shaft system. The three-roll rolling backlash device is characterized in that three chutes in 120-degree symmetrical distribution are formed in the three chute supports, and slider type bearing blocks of the three-roll shaft system are respectively located in the three chutes. Feeding of the three rolls is realized by the feeding rotary discs, and the three-roll shaft system is in rolling connection with the feeding rotary discs through needle roller bearings. Balancing spring mechanisms are arranged between the slider type bearing blocks and the framework fixing supports. Feeding rotary gear rings are fixedly mounted on outer sides of the feeding rotary discs. The three-roll rolling backlash device for the integral self-lubricated oscillating bearing is simple in structure, uniform in stressing, convenient and reliable in control and capable of improving backlash quality of the integral self-lubricated oscillating bearing.

Description

A kind of three-roller type rolling play device of monoblock type self-lubricating knuckle bearing

Technical field

The present invention relates to a kind of rolling equipment, the device of rolling play technology in particularly a kind of oscillating bearing manufacture process.

Background technology

Known self-lubricating knuckle bearing mainly is made up of the inner ring of band spherical outside surface, the outer ring and the self-lubricating layer of band Internal Spherical Surface, and self-lubricating layer adheres to inner surface, is divided into by the outer ring structure form: monoblock type and non-integral type.That the monoblock type oscillating bearing has is simple in structure, reliability is high, stressed advantage such as even, non-maintaining, on equipments such as Aero-Space, robot, communications and transportation, obtains general extensive use.Current, in monoblock type self-lubricating knuckle bearing manufacturing process, generally adopt excellent suitability for press forming outer ring and assembling interference mandrel to form the manufacturing approach of play: earlier the inner ring interference to be assemblied on the mandrel; Make the inner ring spherical diameter become big, again inner ring is placed in the middle of the blank of outer ring, suppress the outer ring blank then; Make outer ring blank Plastic Forming, locking on the spherical outside surface of inner ring, the outer surface and the end face of car mill outer ring then; From inner ring, take out mandrel at last; The inner ring spherical diameter reduces, and forms bearing clearance, finally obtains the finished product bearing.This process need be assembled the mandrel of corresponding interference fit size according to different inner ring central hole size; Could form suitable bearing clearance; Complex process, poor stability, difficult because of the higher feasible distortion of the strength of materials of inner ring simultaneously, being pressed into of interference mandrel is prone to cause the inner ring damage; The method that this assembling interference mandrel forms play is big to the inner ring influence; Therefore, technology that research and development are new and equipment are very necessary, the production of self-lubricating knuckle bearing and quality are provided have significant application value.

Summary of the invention

The objective of the invention is to form the existing above-mentioned technical problem of technology for the play that solves existing monoblock type self-lubricating knuckle bearing; To monoblock type self-lubricating knuckle bearing rolling play technology, a kind of three-roller type rolling play device that is used for the monoblock type self-lubricating knuckle bearing of rolling play technology is provided.Rolling play technology is exactly behind press forming, uses the method for the rolling outer ring of rolling, makes the outer ring plastic deformation, forms the gap between distortion outer ring, back and inner ring, thereby makes the technology of self-lubricating knuckle bearing play.

The technical solution adopted for the present invention to solve the technical problems is:

This rolling play device is based on the method for three-roll rolling; Its structure comprises: gantry base, respectively be fixedly mounted on the gantry base two ends two frame hold-down supports, be fixed on three slide trough support in the frame hold-down support, three rolling roll shafts system, be installed in two between the frame hold-down support the feeding rolling disc, be installed in three rolls of three roll shaft front ends of three rolling roll shafts system respectively; It is characterized in that: form three chutes with 120 ° of symmetrical distributions between three slide trough support, the slide block type bearing block of three roll shafts of three rolling roll shafts system falls into the slide block slide way mechanism that three chutes and three chutes between slide trough support between slide trough support form three symmetrical distributions respectively; The feeding rolling disc that three roller feeding employing centers have special internal bore profile structure, the internal bore profile line of feeding rolling disc are linked together by the formed profile of circular curve of three phase places of symmetry and transition wire and constitute; Three roll shafts of three rolling roll shafts system are through respectively in the contour area of three formed three symmetries of phase place circular curve in the feeding rolling disc endoporus, and each roll shaft all rolls with the feeding rolling disc through needle bearing and is connected; Be equipped with balancing spring mechanism between the slide block type bearing block of three roll shafts of three rolling roll shafts system and the frame hold-down support, three rolls are separated all the time, the outer surface of needle bearing outer ring leans on the bore area exposure phase of feeding rolling disc all the time; The feeding rolling disc outside is installed with feeding and rotates the gear ring piece, so that feeding power can be through this device of gear drive input.

Constitute circular curve in the internal bore profile line of said feeding rolling disc and be two ends and be circular arc, intermediate ends and be the curve that spiral of Archimedes that radius reduces gradually links together.

The present invention compared with prior art has the following advantages: the influence that the invention solves the existing internal coil structures of monoblock type self-lubricating knuckle bearing outer ring play forming technique; The Assembly And Disassembly of no interference axle; To oscillating bearing inner ring inner surface not damaged, survivable interior coil structures; Rolling play technology is less to the self-lubricating layer of inner surface and the damage of inner ring outer surface, bearing long service life, reliability are high; Simultaneously, because rolling play technology roll-force is little and even, so can obtain Internal and external cycle play uniformly.

Description of drawings

Fig. 1 is that sketch map is looked on a left side of the present invention.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 2.

In the accompanying drawing: 1. slide trough support, 2. balancing spring mechanism, 3. gantry base, 4. workpiece; 5. roll, 6. frame hold-down support, 7. slide block type bearing block, 8. three rolling roll shafts system; 9. feeding rolling disc, 10. needle bearing, the gear ring piece is rotated in 11. feedings; 12. feeding rolling disc internal bore profile line, 13. spiral of Archimedes, 14. circular arc lines.

The specific embodiment

Three-roller type rolling play device left side at a kind of monoblock type self-lubricating knuckle bearing shown in Figure 1 is looked in the sketch map, and three rolls 5 are installed in the front end that three rolling roll shafts are three roll shafts of 8 respectively; Two frame hold-down supports 6 relative fixed respectively are installed in gantry base 3 two ends; Three slide trough support 1 are fastened in the frame hold-down support through pin, form three chutes with 120 ° of symmetrical distributions; The slide block type bearing block 7 of three roll shafts of three rolling roll shafts system falls into three chutes between slide trough support respectively, and the chute that forms between slide trough support constitutes the slide block slide way mechanism of three symmetrical distributions; The feeding rolling disc 9 that three roller feeding employing centers have special internal bore profile structure; The internal bore profile line 12 of feeding rolling disc is linked together by three formed profiles of phase place circular curve of symmetry and transition wire and constitutes, and the circular curve two ends are that circular arc 14, intermediate ends are the spiral of Archimedes 13 that radius reduces gradually; The feeding rolling disc outside is installed with feeding and rotates gear ring piece 11, so that feeding power can be through this device of gear drive input; Three rolling roll shafts are that three roll shafts are through respectively in the contour area of three formed three symmetries of phase place circular curve in the feeding rolling disc endoporus, and each roll shaft all rolls with the feeding rolling disc through needle bearing 10 and is connected; Between frame hold-down support and the slide block type bearing block balancing spring mechanism 2 is arranged, three rolls are separated all the time, the bore area of feeding rolling disc leans on the outer surface exposure phase of needle bearing outer ring all the time.

When device of the present invention carries out work, rotate feeding and rotate the gear ring piece and three rolls are in open maximum position, workpiece 4 is placed in the middle of three rolls; Then; To roll mandrel system input power, make three rolls with identical rotating speed rotation, rotate gear ring piece input feeding through feeding simultaneously and rotate; The feeding rolling disc rotates around the axis of three slide trough support; The slide block type bearing block of roll mandrel system under the effect of feeding rolling disc respectively in three chutes between slide trough support to the center feed motion, thereby the rotation and the constant speed that realize three rolls to the center feeding, thereby form the rolling motion of three rolls; Rolling bearing outer ring makes the outer ring pass through rolling and forms good bearing clearance.

Claims

1. the three-roller type rolling play device of a monoblock type self-lubricating knuckle bearing; Comprise gantry base, respectively be fixedly mounted on the gantry base two ends two frame hold-down supports, be fixed on three slide trough support in the frame hold-down support, three rolling roll shafts system, be installed in two between the frame hold-down support the feeding rolling disc, be installed in three rolls of three roll shaft front ends of three rolling roll shafts system respectively; It is characterized in that: form three chutes with 120 ° of symmetrical distributions between three slide trough support, the slide block type bearing block of three roll shafts of three rolling roll shafts system falls into the slide block slide way mechanism that three chutes and three chutes between slide trough support between slide trough support form three symmetrical distributions respectively; The feeding rolling disc that three roller feeding employing centers have special internal bore profile structure, the internal bore profile line of feeding rolling disc are linked together by the formed profile of circular curve of three phase places of symmetry and transition wire and constitute; Three roll shafts of three rolling roll shafts system are through respectively in the contour area of three formed three symmetries of phase place circular curve in the feeding rolling disc endoporus, and each roll shaft all rolls with the feeding rolling disc through needle bearing and is connected; Be equipped with balancing spring mechanism between the slide block type bearing block of three roll shafts of three rolling roll shafts system and the frame hold-down support, three rolls are separated all the time, the outer surface of needle bearing outer ring leans on the bore area exposure phase of feeding rolling disc all the time; The feeding rolling disc outside is installed with feeding and rotates the gear ring piece.

2. the three-roller type rolling play device of monoblock type self-lubricating knuckle bearing according to claim 1 is characterized in that: constitute circular curve in the internal bore profile line of said feeding rolling disc and be two ends and be circular arc, intermediate ends and be the curve that spiral of Archimedes that radius reduces gradually links together.