CN201794920U

CN201794920U - Five-roller-row type slewing bearing

Info

Publication number: CN201794920U
Application number: CN201020509068XU
Authority: CN
Inventors: 侯宁; 梅帮明; 许丽华; 吴世波; 朱良银
Original assignee: MA'ANSHAN TONGLI SLEWING DRIVE CO Ltd
Current assignee: MA'ANSHAN TONGLI SLEWING DRIVE CO Ltd
Priority date: 2010-08-26
Filing date: 2010-08-26
Publication date: 2011-04-13
Anticipated expiration: 2020-08-26

Abstract

The utility model discloses a five-roller-row type slewing bearing, which comprises rollers, an outer ring and an inner ring. Mounting holes are arranged on the axial planes of both the inner ring and the outer ring. The five-roller-row type slewing bearing is characterized in that the five rows of rollers are arranged between the inner ring and the outer ring. Five raceways of the five-roller-row type slewing bearing are increased in number compared with an existing roller type slewing bearing having three raceways, so that the rows of the rollers are increased from original three rows into five vertical rows. The middle row of radial rollers are especially used for bearing axial force, and the remaining four upper rows of axial rollers are used for bearing axial force and overturning moment. Compared with the three-roller-row type slewing bearing, bearing capacity of the five-roller-row type slewing bearing is increased by more than twice under the conditions of same slewing centers and the same diameters of the rollers. The slewing bearing is applicable to operation occasions with extremely small bearing radial force and particularly large bearing axial force and overturning moment.

Description

Five row's roller type pivoting supports

Technical field

The utility model relates to the structural design of many row's roller type pivoting supports.

Background technique

Require the workplace of pivoting support high bearing capacity generally to adopt three row's roller type pivoting supports now.The axial roller of two rows bears axial force and tilting moment in three row's roller type pivoting supports, the special bearing radial force of row's radial roller.Determine that the main parameter of three row's roller type pivoting support axial carrying capacities is gyration center diameter, the roller diameter of roller.Because the restriction of quenching technology for surfaces, the quenching hardness of raceway, the impossible unconfined increase of depth of hardening zone, therefore the roller diameter can not infinitely increase, improve the bearing capacity of roller type pivoting support and have only the gyration center diameter that strengthens roller, like this boundary dimension of pivoting support must strengthen many, this and heavily loaded main frame to pivoting support minor diameter, high bearing capacity require opposing.Therefore, row's number that can only promptly increase roller by the structure that changes three row's roller type pivoting supports satisfies the requirement of heavily loaded main frame to pivoting support minor diameter, high bearing capacity.

Summary of the invention

Problem to be solved in the utility model provides a kind of pivoting support of many row's roller construction, and its bearing capacity height, radial dimension is little, technology capability good.Simultaneously, its compact structure connects reliably with main frame, easily assembles, dismantles.

The utility model five row's roller type pivoting supports comprise roller, outer ring, inner ring, and the axial plane of Internal and external cycle is equipped with mounting hole, it is characterized in that: described roller is five rows altogether, is arranged between the Internal and external cycle.

Wherein, be provided with five raceways according to certain size is spaced apart on the inner ring surface of outer ring; Also offer five raceways on the outer ring surface of inner ring, its position is corresponding with the interior raceway of outer ring; Corresponding inside and outside raceway has formed complete roller path; Article five, the raceway in the centre of raceway is the side direction raceway, and the inside is placed with radial roller; The side direction raceway respectively be two plane raceways up and down, the plane raceway is parallel to each other, the inside is placed with axial roller; Adopt spacing block or integral cage to isolate between every row's roller.

The utility model roller type pivoting support is that the raceway in the existing roller type pivoting support is increased to five by three, thereby make roller row number increase to five rows up and down by three original rows: the special bearing radial force of row's radial roller in the middle of it, the axial roller of all the other four rows bears axial force and tilting moment.The utility model and existing three row's roller type pivoting supports are compared, and bearing capacity is more than doubled under the identical situation of roller gyration center diameter, roller diameter.Simultaneously, its compact structure can satisfy the requirement of heavily loaded main frame to pivoting support minor diameter, high bearing capacity, and meets the product design concept of lightweight, economized.Pivoting support of the present utility model is applicable to axial force and the king-sized workplace of tilting moment that the radial force of bearing is very little, bear.

Description of drawings

Fig. 1 is the structural representation of the utility model pivoting support for no gear ring supporting;

Fig. 2 is that the utility model pivoting support is the structural representation of external toothing supporting;

Fig. 3 is that the utility model pivoting support is the structural representation of ring gear supporting;

Fig. 4 is the schematic representation that radial roller is isolated with spacing block;

Fig. 5 is the schematic representation that axial roller is isolated with spacing block.

Embodiment

Wherein, be provided with five raceways according to certain size is spaced apart on the inner ring surface of outer ring; Also offer five raceways on the outer ring surface of inner ring, its position is corresponding with the interior raceway of outer ring; Corresponding inside and outside raceway has formed complete roller path; Article five, the raceway in the centre of raceway is the side direction raceway, and the inside is placed with radial roller 7; The side direction raceway respectively be two plane raceways up and down, the plane raceway is parallel to each other, the inside is placed with

axial roller

4,5,9,11; Adopt spacing block or integral cage to isolate between every row's roller.

Serve as reasons when the outer ring and to enclose the bearing ring 6 that is fixed as one by screw 8 up and down, when inner ring was nose circle 1: the last lower plane of bearing ring 6 all was higher than the last lower plane of nose circle 1; Bearing ring 6 is higher than and has annular groove on the inner ring surface on plane on the nose circle 1 Stamping Steel Ribbon 3 is installed, and nose circle 1 is lower than and has down annular groove on the outer ring surface of bearing ring 6 lower planes Stamping Steel Ribbon 10 is installed; The plane has a circular groove by bearing ring 6 places Stamping Steel Ribbon 2 is installed on the nose circle 1.At this moment, nose circle 1 can not have gear ring or ring gear is arranged.

When the outer ring is a nose circle 1, inner ring is served as reasons when enclosing the bearing ring 6 that is fixed as one by screw 8 up and down: the last lower plane of bearing ring 6 all is higher than the last lower plane of nose circle 1; Bearing ring 6 is higher than and has annular groove on the outer ring surface on plane on the nose circle 1 Stamping Steel Ribbon 3 is installed, and nose circle 1 is lower than and has down annular groove on the inner ring surface of bearing ring 6 lower planes Stamping Steel Ribbon 10 is installed; The plane has a circular groove by bearing ring 6 places Stamping Steel Ribbon 2 is installed on the nose circle 1.At this moment, nose circle 1 can not have gear ring or external toothing is arranged.

Nose circle 1 adopts bolt to connect with the mountion plate of main frame bottom by mounting hole, and enclosing up and down by the mountion plate of bolt with main frame top of bearing ring 6 connects.When nose circle 1 has gear ring, the pinion on gear ring and main frame top.Therefore, the utility model roller type pivoting support connects with main frame reliably, easily assembles, dismantles.

Claims

1. five row's roller type pivoting supports comprise roller, outer ring, inner ring, and the axial plane of Internal and external cycle is equipped with mounting hole, it is characterized in that: described roller is five rows altogether, is arranged between the Internal and external cycle.

2. five row's roller type pivoting supports according to claim 1 is characterized in that: be provided with five raceways according to certain size is spaced apart on the inner ring surface of outer ring; Also offer five raceways on the outer ring surface of inner ring, its position is corresponding with the interior raceway of outer ring; Corresponding inside and outside raceway has formed complete roller path; Article five, the raceway in the centre of raceway is the side direction raceway, and the inside is placed with radial roller (7); The side direction raceway respectively be two plane raceways up and down, the plane raceway is parallel to each other, the inside is placed with axial roller (4), (5), (9), (11); Adopt spacing block or integral cage to isolate between every row's roller.

3. five row's roller type pivoting supports according to claim 1 and 2, it is characterized in that: serve as reasons when described outer ring and enclose the bearing ring (6) that is fixed as one by screw (8) up and down, when inner ring was nose circle (1): the last lower plane of bearing ring (6) all was higher than the last lower plane of nose circle (1); Bearing ring (6) is higher than nose circle (1) to be gone up and to have annular groove on the inner ring surface on plane Stamping Steel Ribbon (3) is installed, and nose circle (1) is lower than and has down annular groove on the outer ring surface of bearing ring (6) lower plane Stamping Steel Ribbon (10) is installed; The last plane of nose circle (1) is located to have a circular groove by bearing ring (6) Stamping Steel Ribbon (2) is installed.

4. five row's roller type pivoting supports according to claim 1 and 2, it is characterized in that: when described outer ring is nose circle (1), when inner ring was served as reasons the bearing ring (6) that circle up and down is fixed as one by screw (8): the last lower plane of bearing ring (6) all was higher than the last lower plane of nose circle (1); Bearing ring (6) is higher than nose circle (1) to be gone up and to have annular groove on the outer ring surface on plane Stamping Steel Ribbon (3) is installed, and nose circle (1) is lower than and has down annular groove on the inner ring surface of bearing ring (6) lower plane Stamping Steel Ribbon (10) is installed; The last plane of nose circle (1) is located to have a circular groove by bearing ring (6) Stamping Steel Ribbon (2) is installed.

5. five row's roller type pivoting supports according to claim 3, it is characterized in that: described nose circle (1) does not have gear ring.

6. five row's roller type pivoting supports according to claim 3, it is characterized in that: described nose circle (1) has ring gear.

7. five row's roller type pivoting supports according to claim 4, it is characterized in that: described nose circle (1) does not have gear ring.

8. five row's roller type pivoting supports according to claim 4, it is characterized in that: described nose circle (1) has external toothing.