CN217107838U

CN217107838U - Rotary support with double-roller-way structure

Info

Publication number: CN217107838U
Application number: CN202220906195.6U
Authority: CN
Inventors: 李治国; 李国峰; 李国欣; 曹社国; 李湾湾; 丁永旭
Original assignee: Luoyang Aokai Bearing Co ltd
Current assignee: Luoyang Aokai Bearing Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-02
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a rotary support with a double-roller way structure, relating to the technical field of rotary supports, the rotary support with the double-raceway structure comprises a rotary support body, wherein a support device is arranged at the bottom of the rotary support body, the supporting device comprises an outer ring arranged at the bottom of the slewing bearing body, a supporting ring arranged in the middle of the outer ring, a supporting ring arranged between the supporting ring and the outer ring, a fourth roller arranged between the supporting ring and the supporting ring, a third roller arranged between the supporting ring and the outer ring and a steel ball arranged at the top of the supporting ring, the top of the slewing bearing body is provided with a protective cover, in the utility model, the support device is arranged on the slewing bearing body, so that the service life of the slewing bearing body is prolonged, the protective cover is arranged at the top of the slewing bearing body, so that the rollers are protected, and the abrasion of the rollers is reduced.

Description

Rotary support with double-roller-way structure

Technical Field

The utility model relates to a gyration supports technical field, specifically is a gyration of two raceway structures is supported.

Background

The slewing bearing is a large bearing capable of bearing comprehensive load, can simultaneously bear larger axial and radial load and overturning moment, and can transversely support a shaft or vertically support the shaft.

But current slewing bearing still has the weak point when using, and during vertical support axis body, slewing bearing can't support the tip of axis body, leads to the inside lining circle atress comparatively serious, and slewing bearing is easy impaired, and slewing bearing's terminal surface is fragile, does not have the protection subassembly, and dust greasy dirt easily gets into in the roller subassembly, leads to the roller to receive the pollution, is difficult for clearing up.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two raceway structure's gyration is supported to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a slewing bearing of two raceway structures, includes the slewing bearing body, strutting arrangement is installed to the bottom of slewing bearing body, strutting arrangement is including installing the outer lane in the bottom of slewing bearing body, installing the lock ring at the outer lane middle part, installing the backing ring between lock ring and outer lane, installing the fourth roller between backing ring and lock ring, installing the third roller between backing ring and outer lane and installing the steel ball at the backing ring top.

Preferably, the protective cover is installed at the top of slewing bearing body, first round hole has been seted up at the middle part of protective cover, first collar is installed to the bottom of protective cover, the second collar is installed to one side that is close to the second round hole on the protective cover.

Preferably, the inner diameter of the support ring is smaller than the diameter of the inner lining ring, a second round hole is formed in the middle of the inner lining ring, and the diameter of the second round hole is smaller than that of the first round hole.

Preferably, the slewing bearing body comprises an outer ring mounted above the supporting device, an inner lining ring mounted in the middle of the outer ring, a roller mounting frame mounted between the inner lining ring and the outer ring, and a first roller and a second roller mounted on the roller mounting frame, and the front surface and the rear surface of the roller mounting frame are provided with bolts.

Preferably, a first mounting groove is formed in the top of the outer ring, a second mounting groove is formed in the top of the inner ring, the first mounting groove is in transition fit with the first mounting ring, and the second mounting groove is in transition fit with the second mounting ring.

Preferably, a jack is formed in the top box of the outer ring, an insert rod is installed on the outer wall of the outer ring, and the insert rod is in transition fit with the jack.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through installation strutting arrangement on the slewing bearing body, when the vertical support axis body of slewing bearing body, the inside axis body of junk ring including junk ring and installation in the supporting ring support among the strutting arrangement, be favorable to protecting the interior junk ring of slewing bearing body, the wearing and tearing of junk ring in the reduction also are favorable to reducing the noise of slewing bearing body during operation simultaneously, are favorable to prolonging the life of slewing bearing body.

2. The utility model discloses in, through the top installation protective cover at the slewing bearing body, first collar and second collar are installed to the bottom of protective cover, first collar is connected with the outer lasso of slewing bearing body, the second collar is connected with the inside lasso of slewing bearing body, shelter from the slewing bearing body through the protective cover, thereby protected the inside structure of slewing bearing body, outside dust and greasy dirt can not with the inside structural contact of slewing bearing body, the roller has been protected, be favorable to reducing the wearing and tearing of roller.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the protective cover of the present invention;

fig. 3 is a top view of the slewing bearing body according to the present invention;

fig. 4 is a top view of the supporting device of the present invention;

fig. 5 is a schematic structural diagram of the roller mounting frame, the first roller and the second roller according to the present invention;

fig. 6 is a front view of the roller mounting bracket of the present invention;

fig. 7 is a bottom view of the protective cover of the present invention;

fig. 8 is a sectional view taken along line a-a in fig. 7.

In the figure: 1. a support device; 101. an outer ring; 2. inserting a rod; 3. a protective cover; 4. a slewing bearing body; 41. an outer ferrule; 5. a first circular hole; 6. a second circular hole; 7. a roller mounting bracket; 8. a first roller; 9. a second roller; 10. a first mounting groove; 11. a second mounting groove; 12. an inner liner; 13. a jack; 14. a third roller; 15. a ring; 16. steel balls; 17. a fourth roller; 18. a support ring; 19. a bolt; 20. a first mounting ring; 21. a second mounting ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 8, the utility model provides the following technical solutions: a slewing bearing with a double-roller-way structure comprises a slewing bearing body 4, wherein a supporting device 1 is installed at the bottom of the slewing bearing body 4, the supporting device 1 comprises an outer ring 101 installed at the bottom of the slewing bearing body 4, a supporting ring 18 installed in the middle of the outer ring 101, a backing ring 15 installed between the supporting ring 18 and the outer ring 101, a fourth roller 17 installed between the backing ring 15 and the supporting ring 18, a third roller 14 installed between the backing ring 15 and the outer ring 101 and a steel ball 16 installed at the top of the backing ring 15, the slewing bearing body 4 is placed behind the top of the supporting device 1, the steel ball 16 is fixed on the top of the supporting ring 15, when the first roller 8 rotates, the first roller 8 presses the steel ball 16 downwards, the steel ball 16 is driven by the first roller 8, the steel ball 16 drives the supporting ring 15 to rotate, the supporting ring 15 rotates between the third roller 14 and the fourth roller 17, and meanwhile, the supporting ring 18 supports the inner lining ring 12 and the shaft body.

Specifically, protective cover 3 is installed at the top of slewing bearing body 4, first round hole 5 has been seted up at the middle part of protective cover 3, first collar 20 is installed to protective cover 3's bottom, second collar 21 is installed to one side that is close to second round hole 6 on the protective cover 3, first collar 20 inserts inside first mounting groove 10, second collar 21 inserts the inside of second mounting groove 11, the bottom of protective cover 3 is laminated with the top of outer lasso 41 mutually, protective cover 3 shelters from slewing bearing body 4's top.

Further, the inner diameter of the support ring 18 is smaller than the diameter of the inner lining ring 12, the middle of the inner lining ring 12 is provided with a second round hole 6, the diameter of the second round hole 6 is smaller than the diameter of the first round hole 5, the second mounting ring 21 at the bottom of the protective cover 3 is attached to the top of the inner lining ring 12, and when the inner lining ring 12 is driven by the shaft body to rotate, the second mounting ring 21 rotates in the second mounting groove 11.

Further, the slewing bearing body 4 comprises an outer ring 41 arranged above the supporting device 1, an inner ring 12 arranged in the middle of the outer ring 41, a roller mounting frame 7 arranged between the inner ring 12 and the outer ring 41, and a first roller 8 and a second roller 9 arranged on the roller mounting frame 7, wherein pins 19 are arranged on the front surface and the rear surface of the roller mounting frame 7, holes are formed in the end portions of the first roller 8 and the second roller 9, the pins 19 are inserted into the holes, the pins 19 support the first roller 8 and the second roller 9, and the first roller 8 and the second roller 9 can rotate around the pins 19.

Further, a first mounting groove 10 is formed in the top of the outer ring 41, a second mounting groove 11 is formed in the top of the inner ring 12, the first mounting groove 10 is in transition fit with the first mounting ring 20, the second mounting groove 11 is in transition fit with the second mounting ring 21, the first mounting ring 20 can rotate in the first mounting groove 10, and the second mounting ring 21 can rotate in the second mounting groove 11.

Furthermore, an insertion hole 13 is formed in the top box of the outer ring 101, an insertion rod 2 is mounted on the outer wall of the outer ring 41, the insertion rod 2 is in transition fit with the insertion hole 13, after the insertion rod 2 is inserted into the insertion hole 13, a groove matched with the insertion rod 2 is formed in the outer wall of the outer ring 41, the insertion rod 2 is inserted into the groove, and the insertion rod 2 is mounted on the outer ring 41.

The utility model discloses a use method does: when the installation device is used, the first installation ring 20 is inserted into the first installation groove 10, the second installation ring 21 is inserted into the second installation groove 11, the bottom of the protective cover 3 is attached to the top of the outer ring 41, the protective cover 3 shields the top of the slewing bearing body 4, the end of the outer shaft body is inserted into the second round hole 6 and can drive the inner ring 12 to rotate, the slewing bearing body 4 is placed at the top of the support device 1, the insertion rod 2 is inserted into the insertion hole 13, meanwhile, the first roller 8 is in contact with the steel balls 16, when the first roller 8 rotates, the steel balls 16 are driven by the first roller 8, the steel balls 16 drive the ring 15 to rotate, the ring 15 rotates between the third roller 14 and the fourth roller 17, and meanwhile, the support ring 18 supports the inner ring 12 and the shaft body.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a slewing bearing of two raceway structures, includes slewing bearing body (4), its characterized in that: the supporting device (1) is installed at the bottom of the slewing bearing body (4), and the supporting device (1) comprises an outer ring (101) installed at the bottom of the slewing bearing body (4), a supporting ring (18) installed in the middle of the outer ring (101), a supporting ring (15) installed between the supporting ring (18) and the outer ring (101), a fourth roller (17) installed between the supporting ring (15) and the supporting ring (18), a third roller (14) installed between the supporting ring (15) and the outer ring (101) and a steel ball (16) installed at the top of the supporting ring (15).

2. The slewing bearing of a double track structure as claimed in claim 1, wherein: protective cover (3) are installed at the top of slewing bearing body (4), first round hole (5) have been seted up at the middle part of protective cover (3), first collar (20) are installed to the bottom of protective cover (3), second collar (21) are installed to one side that is close to second round hole (6) on protective cover (3).

3. The slewing bearing of a double track structure as claimed in claim 1, wherein: the inner diameter of the support ring (18) is smaller than the diameter of the inner lining ring (12), a second round hole (6) is formed in the middle of the inner lining ring (12), and the diameter of the second round hole (6) is smaller than that of the first round hole (5).

4. The slewing bearing of a double track structure as claimed in claim 1, wherein: the slewing bearing body (4) comprises an outer ring (41) arranged above the supporting device (1), an inner lining ring (12) arranged in the middle of the outer ring (41), a roller mounting frame (7) arranged between the inner lining ring (12) and the outer ring (41), and a first roller (8) and a second roller (9) arranged on the roller mounting frame (7), wherein bolts (19) are arranged on the front surface and the rear surface of the roller mounting frame (7).

5. The slewing bearing of a double track structure as claimed in claim 4, wherein: the top of the outer ring (41) is provided with a first mounting groove (10), the top of the inner ring (12) is provided with a second mounting groove (11), the first mounting groove (10) is in transition fit with the first mounting ring (20), and the second mounting groove (11) is in transition fit with the second mounting ring (21).

6. The slewing bearing of a double track structure as claimed in claim 4, wherein: jack (13) have been seted up to the top incasement of outer lane (101), inserted bar (2) are installed to the outer wall of outer lane (41), inserted bar (2) and jack (13) transition fit.