CN104295614A

CN104295614A - Split type ultra-large turntable bearing

Info

Publication number: CN104295614A
Application number: CN201410492552.9A
Authority: CN
Inventors: 李云峰; 姜迪; 李晟阳
Original assignee: Henan University of Science and Technology
Current assignee: Henan University of Science and Technology
Priority date: 2014-09-24
Filing date: 2014-09-24
Publication date: 2015-01-21

Abstract

The invention discloses a split type ultra-large turntable bearing. Corresponding upper roller paths, lower roller paths and radial roller paths are formed in both an inner ring and an outer ring; rollers are arranged in a cavity formed by the upper roller paths, the lower roller paths and the radial roller paths of the inner and outer rings; the rollers in the upper and lower roller paths are isolated by a retainer; the rollers in the radial roller paths are isolated by isolation blocks; seal rings for isolating the cavity from the outside are arranged at the upper and lower ends of the cavity; the outer ring is composed of trisected ring sections which are connected with one another end to end; each two adjacent sections are overlapped; the connecting surface between each two adjacent sections forms an angle of 6 degrees with the radial direction of the turntable bearing; the inner ring is composed of an upper inner ring and a lower inner ring; the upper and lower inner rings are respectively composed of trisected ring sections which are connected with one another end to end; the connecting surface between each two adjacent sections forms an angle of 6 degrees with the radial direction of the turntable bearing. As the split type ultra-large turntable bearing adopts the trisection structure, the difficulty in processing and transporting of the ultra-large turntable bearing is solved and the requirement of processing equipment is lowered.

Description

Split type super sized type turntable bearing

Technical field

The present invention relates to ocean engineering curl ring field of bearings, specifically a kind of split type super sized type turntable bearing.

Background technique

Indispensable equipment in the oil exploration at sea of ocean engineering hoist, marine engineering construction, offshore wind farm installation and salvage operation.

Recent years, the activity of China's engineer operation at sea increases sharply, day by day urgent to the demand of the ocean engineering hoist of the above scale of kiloton, turntable bearing is the critical mechanical component unit of ocean engineering crane rotation mechanism, its Design and manufacture faces many technical barriers, is that such main frame current is badly in need of one of key technology broken through.

Ocean engineering hoist turntable bearing is installed in the swirl gear of arm of derrick lower end, structural type is that three-row cylinder roller is combined, this bearing operationally subjects the synergy of complicated radial load, thrust load and tilting moment load, and main frame is very high to the reliability requirement of this turntable bearing; The operation troubles of turntable bearing not only can make main shut-down system keep in repair and bring great economic loss, even can cause great security incident.

For the ocean engineering hoist turntable bearing of kiloton, for meeting the needs of its bearing capacity, its outside dimension is usually more than 10m, and the turntable bearing of such size scale brings a very large difficult problem to the transport etc. of setting out on a journey of the transhipment in the heat treatment of the machining of the forging of bearing blank, bearing parts, bearing parts, production and finished product.

At present, the size section of the turntable bearing that domestic bearing enterprise is produced is usually at below 5m, and size there is not yet relevant report at home more than the turntable bearing of 10m, and the turntable bearing of stock size does not exist due to oversize brought processing and transportation problem.

Summary of the invention

For the problems referred to above, the invention provides a kind of split type super sized type Tumbler disc bearing structure, to solve processing and the transportation problem of super sized type turntable bearing.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of split type super sized type turntable bearing, comprise inner ring, roller, retainer, spacing block, seal ring and outer ring, described inner ring and outer ring are equipped with corresponding upper raceway, lower raceway and radial raceway, roller is assemblied in the upper raceway of inner ring and outer ring, in the die cavity that lower raceway and radial raceway are formed, isolated by retainer between roller in upper raceway and lower raceway, roller in radial raceway is isolated by spacing block, the top and bottom of die cavity are separately installed with seal ring and are isolated from the outside by die cavity, described outer ring by three deciles and end to end ring section form, bridging arrangement is adopted between adjacent two sections, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing, described inner ring is made up of upper inner ring and lower inner ring, upper inner ring and lower inner ring are connected by three decile ring section first places respectively and form, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing,

Interface between described upper inner ring each ring section and the interface between each ring section of lower inner ring are at the 60 ° of angles that circumferentially mutually stagger, and on composition, six ring sections of inner ring and lower inner ring are connected as a single entity by 6 screws.

Beneficial effect of the present invention:

Split type super sized type turntable bearing of the present invention adopts trisection structure, solves the difficult problem of super sized type turntable bearing in processing and transport, reduces the requirement to process equipment;

The inner ring of turntable bearing and outer ring adopt trisection structure, under the prerequisite of load-carrying properties substantially not affecting bearing, significantly reduce the processing of turntable bearing and transport point will faced by size scale;

Adopt bridging arrangement to realize connection between the inner ring of turntable bearing and each ring section of outer ring, be tied by screw and taper pin, this mode structure is simple, compact in design, saves space, eliminates joining plate, reach good effect;

The inner ring of turntable bearing becomes 6 ° of angles with each interface of ring section of outer ring with the radial direction of turntable bearing, avoid roller on raceway by time raceway interface impact that it is moved, and reduce the probability of the premature fatigue failures of raceway interface position;

Interface between upper inner ring each ring section of turntable bearing and the interface between each ring section of lower inner ring are at the 60 ° of angles that circumferentially mutually stagger, on composition, six ring sections of inner ring and lower inner ring are connected as a single entity by 6 screws, this design effectively can improve the connection tightness of each ring section, thus improves intensity.

Accompanying drawing explanation

Fig. 1 structural representation of the present invention;

Fig. 2 trisection structural representation of the present invention;

Bridging arrangement between Fig. 3 ring section;

Docking angle between Fig. 4 ring section ;

Fig. 5 outer ring structure schematic diagram of the present invention;

Fig. 6 inner ring structure schematic diagram of the present invention;

Reference character: 1, upper inner ring, 2, lower inner ring, 3, radial roller, 4, radial spacing block, the 5, first seal ring, the 6, second seal ring, 7, upper row roller, 8, upper row's retainer, 9, lower row roller, 10, lower row's retainer, the 11, the 3rd seal ring, 12, outer ring, 13, first ring section, 14, hexagon socket head cap screw, 15, taper pin, 16, splicing seams, the 17, second ring section.

Embodiment

Below in conjunction with embodiment, the present invention is further elaborated.

A kind of split type super sized type turntable bearing, comprise inner ring, roller, retainer, spacing block, seal ring and outer ring, described inner ring and outer ring are equipped with corresponding upper raceway, lower raceway and radial raceway, roller is assemblied in the upper raceway of inner ring and outer ring, in the die cavity that lower raceway and radial raceway are formed, isolated by retainer between roller in upper raceway and lower raceway, roller in radial raceway is isolated by spacing block, the top and bottom of die cavity are separately installed with seal ring and are isolated from the outside by die cavity, described outer ring by three deciles and end to end ring section form, bridging arrangement is adopted between adjacent two sections, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing, described inner ring is made up of upper inner ring and lower inner ring, upper inner ring and lower inner ring are connected by three decile ring section first places respectively and form, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing, interface between described upper inner ring each ring section and the interface between each ring section of lower inner ring are at the 60 ° of angles that circumferentially mutually stagger, and on composition, six ring sections of inner ring and lower inner ring are connected as a single entity by 6 screws.

As shown in the figure: the present invention includes inner ring 1, lower inner ring 2, radial roller 3, upper row roller 7, lower row roller 9, upper row's retainer 8, lower row's retainer 10, radial spacing block 4, first seal ring 5, second seal ring 6, the 3rd seal ring 11 and outer ring 12, wherein, upper row roller mainly bears the thrust load of effect downwards, lower row roller mainly bears the tilting moment that bearing is overturn, and radial roller mainly holds the radial load of substantially horizontal; The main structure parameters of bearing is as follows: upper row roller center circle diameter is 9600 mm, upper row roller diameter is 130 mm, and upper row roller length is 150mm, and upper row roller quantity is 190, lower row roller center circle diameter is 9400 mm, lower row roller diameter is 100 mm, and lower row roller length is 120 mm, and lower row roller quantity is 230, radial roller center circle diameter is 9360 mm, radial roller diameter is 50mm, and radial roller length is 80mm, and radial roller quantity is 498; In upper raceway and lower raceway, in the die cavity that the roller surface that roller is assembled in inner ring and outer ring is formed, along the circumferencial direction of bearing, isolated by sectional type retainer between roller; In radial raceway, in the die cavity that the radial roller surface that roller is assembled in inner ring and outer ring is formed, along the circumferencial direction of bearing, isolated by radial spacing block between roller; Be separately installed with seal ring the inside die cavity of bearing is isolated from the outside comes in the top and bottom of Bearing inner die cavity; The cylindrical of the outer ring of bearing is designed with the gear teeth; The outer ring of bearing is designed with the axial hole that is uniformly distributed along the circumference, the inner ring of bearing is designed with the axial hole that is uniformly distributed along the circumference, this some holes is used for bearing and is connected with the installation of main frame;

Described split type super sized type turntable bearing adopts trisection structure, as shown in Figure 2;

Described turntable bearing outer ring is made up of three ring sections, and three ring sections join end to end, and adopts bridging arrangement, be tied, as shown in Figure 3 by screw and taper pin between adjacent two sections; Interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing, as Fig. 4, shown in 5;

Described turntable bearing inner ring is made up of upper inner ring and lower inner ring, upper inner ring is made up of three decile ring sections, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing, lower inner ring is made up of three decile ring sections, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing, interface between upper inner ring each ring section and the interface between each ring section of lower inner ring are at the 60 ° of angles that circumferentially mutually stagger, on composition, six ring sections of inner ring and lower inner ring are connected as a single entity by 6 screws, as Fig. 4, shown in 6.

Claims

1. a split type super sized type turntable bearing, comprise inner ring, roller, retainer, spacing block, seal ring and outer ring, described inner ring and outer ring are equipped with corresponding upper raceway, lower raceway and radial raceway, roller is assemblied in the upper raceway of inner ring and outer ring, in the die cavity that lower raceway and radial raceway are formed, isolated by retainer between roller in upper raceway and lower raceway, roller in radial raceway is isolated by spacing block, the top and bottom of die cavity are separately installed with seal ring and are isolated from the outside by die cavity, it is characterized in that: described outer ring by three deciles and end to end ring section form, bridging arrangement is adopted between adjacent two sections, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing, described inner ring is made up of upper inner ring and lower inner ring, upper inner ring and lower inner ring are connected by three decile ring section first places respectively and form, interface between adjacent two sections becomes 6 ° of angles with the radial direction of turntable bearing.

2. a kind of split type super sized type turntable bearing as claimed in claim 1, it is characterized in that: the interface between described upper inner ring each ring section and the interface between each ring section of lower inner ring are at the 60 ° of angles that circumferentially mutually stagger, and on composition, six ring sections of inner ring and lower inner ring are connected as a single entity by 6 screws.