CN201568451U

CN201568451U - Double rows of pin rollers type rotating support

Info

Publication number: CN201568451U
Application number: CN2009202854152U
Authority: CN
Inventors: 邱忠全; 关兆方
Original assignee: Xuzhou Fenghe Slewing Bearing Co Ltd
Current assignee: Xuzhou Fenghe Slewing Bearing Co Ltd
Priority date: 2009-12-25
Filing date: 2009-12-25
Publication date: 2010-09-01
Anticipated expiration: 2019-12-25

Abstract

The utility model discloses a double rows of pin rollers type rotating support, which an upper pressure ring (1), a lower pressure ring (9), an internal tooth ring (3) and a plurality of pin rollers and spacing blocks. Upper and lower two rows of rolling channel slots are made on the cylinder surface of the internal tooth ring (3), wherein, a plurality of pin rollers I (2) are horizontally placed between the upper row of rolling channel slots and the upper pressure ring (1), spacing blocks are arranged between two adjacent pin rollers I (2); a plurality of pin rollers II (10) which are arranged evenly are placed in horizontal and vertical stagger between the lower row of rolling channel slots and the inner holes of the lower pressure ring (9), spacing blocks II (7) are arranged between two adjacent pin rollers II (10). Compared to the three rows of pin rollers type rotating support, the double rows of pin rollers type rotating support reduces one row of rolling channels, the dimensional ratio of the radial direction and the axial direction is smaller than that of the three rows of pin rollers type rotating support with the same specification, the structure of the double rows of pin rollers type rotating support is compact, the primary materials can be saved, the manufacturing process is simple, the manufacturing cost is low, the radial bearing ability can be enough when the axial bearing ability is large and the eccentricity is not large.

Description

Double roller type pivoting support

Technical field

The utility model relates to a kind of bearing, the pivoting support bearing that is specifically related to use on the heavy machinery.

Background technique

The heavily loaded pivoting support that present domestic pivoting support industry is produced mostly is three row's rollers.The bearing capacity of this pivoting support bearing is very big, but it is loaded down with trivial details to play structure, the manufacturing process complexity, and the raw material of consumption are many, and cost is too high.The most of pivoting support bearings that use on the heavy machinery, its bearing capacity are based on thrust load, throw of eccentric

(e = \frac{M}{Fa})

Not quite, use three row's roller pivoting support bearings, cost is too high, causes waste.

Summary of the invention

In order to solve the problems of the technologies described above, the utility model provides a kind of compact structure, simple, the economical and practical double roller type pivoting support of technology.

The utility model is achieved by the following technical solution: a kind of double roller type pivoting support comprises: go up trim ring, lower clamping ring, ring gear and be installed in trim ring and lower clamping ring between many rollers and spacing block; Wherein going up trim ring and lower clamping ring links together with many bolts; It is characterized in that: make upper and lower two row's raceway grooves on the cylndrical surface of described ring gear, many roller I wherein are installed between the endoporus of the row's of going up raceway groove and last trim ring, the axis horizontal of described roller I is placed, the uniform setting of roller I, do not connect mutually, between two adjacent roller I spacer block I is set; Many roller II are installed between the following row's raceway groove of described ring gear and the endoporus of lower clamping ring, and the axis horizontal of described roller II and vertical interlaced are placed, and the uniform setting of roller II does not connect mutually, between two adjacent roller II spacing block II is set.

Described ring gear top is by seal ring I and seal ring II and the sealing of last trim ring; The ring gear bottom is by seal ring III and lower clamping ring sealing.

Three lubricating cups are set on upper and lower trim ring external cylindrical surface, and wherein two lubricating cups connect by the two row's raceway grooves of the making on oil hole and the ring gear respectively, and the surface of contact between another lubricating cup and ring gear and the upper and lower trim ring connects.

Good effect of the present utility model is:

1, compact structure, manufacturing process is simple.

2, axial carrying capacity is big, when throw of eccentric is little, enough radially bearing capacitys is arranged also.

3, more about 1/4th than three row's roller type pivoting support economical with materials of same specification, low cost of manufacture.

Description of drawings

With embodiment the utility model is further specified with reference to the accompanying drawings below.

Accompanying drawing is the utility model structural representation.

Among the figure: 1, go up trim ring, 2, roller I, 3, ring gear, 4, seal ring I, 5, seal ring II, 6, spacing block I, 7, spacing block II, 8, lubricating cup, 9, lower clamping ring, 10, roller II, 11, seal ring III, 12, bolt.

Embodiment

As shown in drawings: a kind of double roller type pivoting support comprises: go up trim ring 1, lower clamping ring 9, ring gear 3 and be installed in trim ring 1 and lower clamping ring 9 between many rollers and spacing block; Wherein go up trim ring 1 and many bolts of lower clamping ring 9 usefulness 12 link together; It is characterized in that: make upper and lower two row's raceway grooves on the cylndrical surface of described ring gear 3, many roller I 2 wherein are installed between the endoporus of the row's of going up raceway groove and last trim ring 1, the axis horizontal of described roller I 2 is placed, roller I 2 uniform settings, do not connect mutually, between two adjacent roller I 2 spacer block I 6 is set; Many roller II 10 are installed between the following ways groove of described ring gear 3 and the endoporus of lower clamping ring 9, the axis horizontal of described roller II 10 and vertical interlaced are placed, roller II 10 uniform settings do not connect mutually, between two adjacent roller II 10 spacing block II (7) are set.The effect of spacing block mainly is to prevent to produce between the roller friction.

When pivoting support was installed, trim ring 1 linked with bolt with machine on it, and outer power arrives transmission of power by the internal gear of ring gear 3 rotating part of machine.During assembling, must strictly control the axial and radial clearance of supporting, the adjustment in its gap is to realize by the height of upper and lower trim ring 1,9.

From the structure of this pivoting support, the manufacturing process of this kind pivoting support and three row's roller types are similar, but have lacked a slideway, and processing is got up more simple and easy.

Described ring gear 3 tops are by seal ring I 4 and seal ring II 5 and last trim ring 1 sealing; Ring gear 3 bottoms are by seal ring III11 and lower clamping ring 9 sealings.Prevent that dust or other foreign material from entering slideway, destroy the normal operation of supporting

On upper and lower trim ring 1,9 external cylindrical surfaces three lubricating cups 8 are set, lubricating cup 8 connects by two on oil hole and the ring gear 3 row raceway groove respectively, and lubricating cup 8 also and the perforation of the surface of contact between ring gear 3 and the upper and lower trim ring 1,9.By lubricating cup 8 grease up in the supporting raceway, guarantee the effectively lubricating that carries out of roller I 2 and roller II 10, reduce friction, improve working life.

Double roller type pivoting support has lacked row's raceway than three row's roller types, and radial and axial size is little more a lot of than the size of three row's roller types of same specification, and structure is also compact.Save material, manufacturing process is simple, low cost of manufacture.Axial carrying capacity is big, when throw of eccentric is little, enough radially bearing capacities is arranged.

Claims

1. a double roller type pivoting support comprises: go up trim ring (1), lower clamping ring (9), ring gear (3) and be installed in trim ring (1) and lower clamping ring (9) between many rollers and spacing block; Wherein go up trim ring (1) and lower clamping ring (9) links together with many bolts (12); It is characterized in that: make upper and lower two row's raceway grooves on the cylndrical surface of described ring gear (3), many roller I (2) wherein are installed between the endoporus of the row's of going up raceway groove and last trim ring (1), the axis horizontal of described roller I (2) is placed, the uniform setting of roller I (2), do not connect mutually, between two adjacent roller I (2) spacer block I (6) is set; Many roller II (10) are installed between the following row's raceway groove of described ring gear (3) and the endoporus of lower clamping ring (9), the axis horizontal of described roller II (10) and vertical interlaced are placed, the uniform setting of roller II (10), do not connect mutually, between two adjacent roller II (10) spacing block II (7) is set.

2. double roller type pivoting support according to claim 1 is characterized in that: described ring gear (3) top is by seal ring I (4) and seal ring II (5) and last trim ring (1) sealing; Ring gear (3) bottom is by seal ring III (11) and lower clamping ring (9) sealing.

3. double roller type pivoting support according to claim 1, it is characterized in that: on upper and lower trim ring (1,9) external cylindrical surface, three lubricating cups (8) are set, wherein two lubricating cups (8) connect by the making two ways grooves on oil hole and the ring gear (3) respectively, and another lubricating cup (8) also and the perforation of the surface of contact between ring gear (3) and the upper and lower trim ring (1,9).