CN202646372U - Three-row-roller type rotary bearing - Google Patents
Three-row-roller type rotary bearing Download PDFInfo
- Publication number
- CN202646372U CN202646372U CN 201220272614 CN201220272614U CN202646372U CN 202646372 U CN202646372 U CN 202646372U CN 201220272614 CN201220272614 CN 201220272614 CN 201220272614 U CN201220272614 U CN 201220272614U CN 202646372 U CN202646372 U CN 202646372U
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- CN
- China
- Prior art keywords
- roller
- inner ring
- boss
- raceway
- row
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a three-row-roller type rotary bearing which comprises an upper inner ring, a lower inner ring and an outer gear ring, wherein the upper inner ring and the lower inner ring are fixedly connected to form an inner ring structure, a boss is arranged on the lateral surface of the outer gear ring, an upper roller path is formed by the lateral edge of the upper inner ring and the upper surface of the boss, and an upper roller pillar is arranged in the upper roller path; a lower roller path is formed by the lateral edge of the lower inner ring and the lower surface of the boss, and a lower roller pillar is arranged in the lower roller path; a radial roller path is arranged between the lateral surface of the boss and the inner ring structure, and a radial roller pillar is arranged in the radial roller path; and the cross section of the boss is ladder-shaped, the upper surface of the boss and the horizontal plane form an included angle theta, and the roller path surface of the upper inner ring and the horizontal plane form an included angle alpha. The three-row roller type rotary bearing has the advantages of being reasonable in structure and reliable to use, effectively reducing abrasion of the roller pillars and the roller paths, improving bearing capacity of rotary supporting and being long in service life.
Description
Technical field
The utility model relates to the pivoting support technical field, especially relates to a kind of three row's roller type pivoting supports.
Background technique
The roller that traditional roller type pivoting support is selected is isodiametric cylindrical body, this isodiametric cylindrical body foot axis is placed along the radial direction of pivoting support, this has just caused wherein one to bring out now and slide, accelerate on the one hand the wearing and tearing of roller and raceway, cause on the other hand rotation dumb, rub-moment increases, thereby easily damage is supported in revolution, and working life is short.
Therefore, a kind of rational in infrastructure, to use reliably, the appearance of three row's roller type pivoting supports of long service life is necessary.
The model utility content
The utility model is to provide a kind of three row's roller type pivoting supports for solving the problems of the technologies described above, and is not only rational in infrastructure, uses reliably, and effectively reduces the wearing and tearing of roller and raceway, improves the bearing capacity of pivoting support.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of three row's roller type pivoting supports, comprise inner ring, lower inner ring, external toothing, described upper inner ring is connected by bolt with described lower inner ring and forms inner ring structure, the side of described external toothing is provided with boss, the side of inner ring and the upper surface of described boss form raceway on described, are provided with roller on described in the raceway; Form lower raceway at the side of described lower inner ring and the lower surface of described boss, in described lower raceway, be provided with lower roller; Between the side of described boss and the described inner ring structure radially raceway is set, in described radially raceway, is provided with radial roller; The cross section of described boss is trapezoidal, and the upper surface of described boss and horizontal plane have an angle theta, and the roller surface of described upper inner ring and horizontal plane have an angle α.
As preferred technological scheme, described angle theta and described angle α equate.
As preferred technological scheme, it is 0.1-15 ° in described angle theta and described angle α, to reduce the wearing and tearing of roller and raceway.
Preferred, described angle theta and angle α are 5 °.
As preferred technological scheme, the side margin of inner ring is provided with seal ring on described, is provided with seal ring in the top and bottom of described external toothing; The acting as of seal ring prevents that pollutant from entering up and down in the raceway, causes the damage of roller.
As preferred technological scheme, on described, be provided with retainer outside roller, described lower roller, the described radial roller, damage to prevent the roller phase mutual friction in the raceway.
Beneficial effect
Three row's roller type pivoting supports of the present utility model are rational in infrastructure, use reliably, and effectively reduce the wearing and tearing of roller and raceway, improve the bearing capacity of pivoting support, long service life.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model: a kind of structural representation of three row's roller type pivoting supports;
Fig. 2 is the utility model: a kind of structural representation of external toothing of three row's roller type pivoting supports;
Wherein: radially raceway, 11-radial roller, 12-seal ring, 13-retainer of roller, 10-under raceway, the 9-under inner ring, 3-external toothing, 4-inner ring structure, 5-boss, the upper raceway of 6-, the upper roller of 7-, the 8-under the upper inner ring of 1-, the 2-.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1-shown in Figure 2, a kind of three row's roller type pivoting supports, comprise inner ring 1, lower inner ring 2, external toothing 3, be fixedly connected to form inner ring structure 4 between upper inner ring 1 and the lower inner ring 2, the mode that is fixedly connected with has multiple, selects bolt to connect in the present embodiment, and the side of external toothing 3 is provided with boss 5, form raceway 6 at the side of upper inner ring 1 and the upper surface of boss 5, in upper raceway 6, be provided with roller 7; Form lower raceway 8 at the side of lower inner ring 2 and the lower surface of boss 5, in lower raceway 8, be provided with lower roller 9; Radially raceway 10 is set between the side of boss 5 and the inner ring structure 4, radially is being provided with radial roller 11 in the raceway 10.Be trapezoidal in the cross section of boss 5, the upper surface of boss 5 and horizontal plane angle θ can be 0.1-15 °, the angle α of the roller surface of upper inner ring 1 and horizontal plane, angle theta and angle α equate, perhaps change to some extent according to actual requirement, the angle theta of choosing in the present embodiment is 5 °, and angle α is 5 °, to reduce the wearing and tearing of roller and raceway, prolong the working life of pivoting support.
Side margin at upper inner ring 1 is provided with seal ring 12, is provided with seal ring 12 in the top and bottom of external toothing 3.Seal ring 12 reaches the effect of sealing, prevents that pollutant from entering up and down in the raceway, causes the damage of roller; Outside upper roller 7, lower roller 9, radial roller 11, be provided with retainer 13.The effect of retainer 13 is to prevent the roller phase mutual friction in the raceway and damage.
Because external toothing 3 and upper inner ring 1 roller surface all have 5 degree angles, upper roller 7 is the cylinder roller.Upper raceway 6 bears positive pressure and tilting moment with lower raceway 8, radially raceway 10 bearing radial forces and tilting moment.Radial force all concentrates on radially on the raceway 10.Upper roller 7 disperses active force at boss 5 surface slidings that tilt more, can improve the circular runout precision simultaneously, improves the product needs in working life to reach.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. arrange the roller type pivoting support for one kind three, comprise inner ring, lower inner ring, external toothing, described upper inner ring and described lower inner ring are fixedly connected to form inner ring structure, it is characterized in that, the side of described external toothing is provided with boss, the side of inner ring and the upper surface of described boss form raceway on described, are provided with roller on described in the raceway; Form lower raceway at the side of described lower inner ring and the lower surface of described boss, in described lower raceway, be provided with lower roller; Between the side of described boss and the described inner ring structure radially raceway is set, in described radially raceway, is provided with radial roller; The cross section of described boss is trapezoidal, and the upper surface of described boss and horizontal plane have an angle theta, and the roller surface of described upper inner ring and horizontal plane have an angle α.
2. a kind of three row's roller type pivoting supports according to claim 1 is characterized in that, described angle theta and described angle α equate.
3. a kind of three row's roller type pivoting supports according to claim 2 is characterized in that, are 0.1-15 ° in described angle theta.
4. a kind of three row's roller type pivoting supports according to claim 3 is characterized in that, described angle theta is 5 °.
5. the described a kind of three row's roller type pivoting supports of arbitrary claim is characterized in that according to claim 1-4, and the side margin of inner ring is provided with seal ring on described, is provided with seal ring in the top and bottom of described external toothing.
6. the described a kind of three row's roller type pivoting supports of arbitrary claim is characterized in that according to claim 1-4, are provided with retainer outside roller, described lower roller, the described radial roller on described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272614 CN202646372U (en) | 2012-06-11 | 2012-06-11 | Three-row-roller type rotary bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272614 CN202646372U (en) | 2012-06-11 | 2012-06-11 | Three-row-roller type rotary bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646372U true CN202646372U (en) | 2013-01-02 |
Family
ID=47415485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220272614 Withdrawn - After Issue CN202646372U (en) | 2012-06-11 | 2012-06-11 | Three-row-roller type rotary bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646372U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734320A (en) * | 2012-06-11 | 2012-10-17 | 常州市南港港口机械有限公司 | Slewing bearing with three rows of rollers |
| CN103603866A (en) * | 2013-11-30 | 2014-02-26 | 天津重钢机械装备股份有限公司 | Z-shaped slewing bearing device |
-
2012
- 2012-06-11 CN CN 201220272614 patent/CN202646372U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734320A (en) * | 2012-06-11 | 2012-10-17 | 常州市南港港口机械有限公司 | Slewing bearing with three rows of rollers |
| CN103603866A (en) * | 2013-11-30 | 2014-02-26 | 天津重钢机械装备股份有限公司 | Z-shaped slewing bearing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20160309 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |