CN205244131U - Four -point contact abnormal shape thrust ball combination bearing - Google Patents
Four -point contact abnormal shape thrust ball combination bearing Download PDFInfo
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- CN205244131U CN205244131U CN201521038839.0U CN201521038839U CN205244131U CN 205244131 U CN205244131 U CN 205244131U CN 201521038839 U CN201521038839 U CN 201521038839U CN 205244131 U CN205244131 U CN 205244131U
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- inner ring
- steel ball
- lower floor
- inner circle
- raceway
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Abstract
The utility model discloses a four -point contact abnormal shape thrust ball combination bearing, including upper inner circle, lower floor's inner circle and outer lane, upper inner circle, lower floor's inner circle and outer lane are the annular, and a whole and suit are assembled into in the outer lane to upper inner circle and lower floor's inner circle, being equipped with raceway A between upper strata inner circle, lower floor's inner circle and the outer lane, installing a plurality of steel ball A in the raceway A, and be equipped with spacing block A between the adjacent steel ball A, steel ball A has two contact points with the outer lane, and steel ball A respectively has a contact point with upper inner circle, lower floor's inner circle, be equipped with annular connecting portion on the outer circumference lateral wall of upper inner circle, be equipped with raceway B between the lower terminal surface of connecting portion and the up end of outer lane, install a plurality of steel ball B in the raceway B, be equipped with spacing block B between the adjacent steel ball B. The utility model discloses can satisfy in machining to the high rigidity of needs, the height carried in advance, the height bears, start -up force moment is little requirements such as operating mode.
Description
Technical field
The utility model belongs to combination bearing technical field, relates generally to a kind of 4 special-shaped thrust ball combination bearings of contact.
Background technology
At present, in Machine Design, just use thrust ball bearing if bear the words of axial load, the feature of thrust ball bearing is the axial load that can only bear a direction, can restrictive axes and the axial displacement of a direction of shell; But because contact angle is 90 °, can only bear axial load, limit speed is low, thrust ball bearing is in operation process, if the too small bearing of plus load is not compacted, steel ball is subject to inertia force effect will produce slippage, thereby destroys the normal operation of bearing.
If bear radially, require the occasion that staring torque is little to use four-point contact ball when axially combined load, and work. 4 angular contact ball bearings can bear radial load and bi-directional axial load, in the time that bearing bears the axial load of different directions, act on the also difference of stress point on rolling element, that is to say in the time bearing the axial load of a direction, there are upper and lower two stress points, in the time bearing the axial load of another direction, have two stress points that are different from first the first two stress point, these stress points have been added up four, are therefore called 4 angular contact ball bearings. But because its inner rolling element is steel ball, so the tilting moment of bearing (resisting the ability of axial deformation) is limited.
But for the high rigidity of needs, high preload, operating mode that high-mechanic (axial-radial combined loading), staring torque are little for example: precision measurement testing stand, accurate monitoring instrument etc., two class bearings are all not too applicable. Crossed roller bearing is satisfactory from load angle, but in the time that pretightning force increases, and the also growth at double of the moment of friction of bearing, causes the waste of client's power source.
Summary of the invention
In order to meet in machining for the high rigidity of needs, highly preload, the requirement such as high-mechanic, operating mode that staring torque is little, the purpose of this utility model is to provide a kind of 4 special-shaped thrust ball combination bearings of contact.
In order to realize foregoing invention object, the utility model adopts technical scheme as described below:
A kind of 4 special-shaped thrust ball combination bearings of contact, comprise upper strata inner ring, lower floor's inner ring and outer ring, upper strata inner ring, lower floor's inner ring and outer ring are annular, upper strata inner ring and lower floor's inner ring are assembled into an entirety and are set in outer ring, between described upper strata inner ring, lower floor's inner ring and outer ring, be provided with raceway A, multiple steel ball A are installed in raceway A, and between adjacent steel ball A, spacing block A is housed, there are two contact points steel ball A and outer ring, and steel ball A and upper strata inner ring, lower floor's inner ring respectively have a contact point; On the excircle sidewall of upper strata inner ring, be provided with annular connecting portion, between the lower surface of connecting portion and the upper surface of outer ring, be provided with raceway B, some steel ball B are installed in raceway B, between adjacent steel ball B, spacing block B is housed.
Further, described upper strata inner ring is connected with alignment pin by screw with lower floor inner ring.
Further, the upper surface of described upper strata inner ring is provided with oil filler point, and oil filler point is connected with raceway A, raceway B.
Further, in described oil filler point, stopper is installed.
Further, on the upper surface of upper strata inner ring and the lower surface of outer ring, be equipped with installing hole.
Further, on the excircle sidewall of outer ring, be processed with tooth.
Owing to adopting technique scheme, the utlity model has following superiority:
1, the utility model combines traditional four-point contact ball and thrust ball bearing, not only overcome the low feature of the rigidity of toppling of original four-point contact ball, the advantage that has continued to keep four-point contact ball can bear bi-directional axial load and radial load, and the axial length of bearing lengthens, axial stiffness and the axial carrying capacity of bearing are increased, because bearing has adopted the structure of two groups of raceways, steel ball, ensured that bearing is the in the situation that of high-mechanic, starting friction moment declines at double;
2, on upper strata inner ring and outer ring, be equipped with installing hole, simplified client's mounting design; Be convenient to the direct centering of client, installation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 be in Fig. 1 K to view;
In figure: the inner ring of 1-upper strata; 2-steel ball A; 3-outer ring; 4-spacing block B; 5-screw; 6-lower floor inner ring; 7-steel ball B; 8-spacing block A; 9-oil filler point; 10-installing hole; 11-alignment pin.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
Embodiment mono-, as shown in Figure 1, 2, a kind of 4 special-shaped thrust ball combination bearings of contact, comprise upper strata inner ring 1, lower floor's inner ring 6 and outer ring 3, upper strata inner ring 1, lower floor's inner ring 6 and outer ring are annular, upper strata inner ring 1 and lower floor's inner ring 6 are assembled into an entirety and are set in outer ring 3, between described upper strata inner ring 1, lower floor's inner ring 6 and outer ring 3, be provided with raceway A, multiple steel ball A2 are installed in raceway A, and between adjacent steel ball A2, spacing block A8 is housed, there are two contact points steel ball A2 and outer ring 3, and steel ball A2 and upper strata inner ring 1, lower floor's inner ring 6 respectively have a contact point; On the excircle sidewall of upper strata inner ring 1, be provided with annular connecting portion, between the lower surface of connecting portion and the upper surface of outer ring 3, be provided with raceway B, some steel ball B7 are installed in raceway B, between adjacent steel ball B, spacing block B4 is housed.
Described upper strata inner ring 1 is connected with alignment pin 11 by screw 5 with lower floor inner ring 6; Upper strata inner ring 1 and lower floor's inner ring 6 are in the time of assembling, in order to ensure both axialities, alignment pin 11 is inserted to the location of realizing both in the dowel hole on upper strata inner ring, lower floor's inner ring, behind location, screw in the screw on upper strata inner ring, lower floor's inner ring with screw 5 again, described alignment pin 11 is positioned on same circumference and uniform setting with screw 5, every three screws 5, an alignment pin 11 is set, so just make upper strata inner ring and lower floor's inner ring after assembling both ensure axiality, and pretightning force obtain greatly improving.
The upper surface of described upper strata inner ring 1 is provided with oil filler point 9, and oil filler point is connected with raceway A, raceway B, in described oil filler point, stopper is installed.
On the upper surface of upper strata inner ring 1 and the lower surface of outer ring 3, be equipped with installing hole 10, simplified client's mounting design, be convenient to the direct centering of client, installation.
Embodiment bis-, the difference of the structure of this embodiment and embodiment mono-is: on the excircle sidewall of outer ring, be processed with tooth; Tooth is in process, after gear hobbing, surface hardening heat treatment, roll flute operation, more than tooth surface hardness reaches HRC50, but the matrix hardness of tooth still keeps the about HRC25 of quality adjustment condition hardness, so ensure the state of " the hard core of face is soft ", can in the time that tooth is worked, there is enough bearing capacities and support shock proof ability. More than tooth accuracy reaches 6 class precisions after roll flute, not only simplify client's driven Design, and directly ensured the transmission accuracy of user rs host.
Claims (6)
1. one kind 4 the special-shaped thrust ball combination bearings of contact, it is characterized in that: comprise upper strata inner ring, lower floor's inner ring and outer ring, upper strata inner ring, lower floor's inner ring and outer ring are annular, upper strata inner ring and lower floor's inner ring are assembled into an entirety and are set in outer ring, between described upper strata inner ring, lower floor's inner ring and outer ring, be provided with raceway A, multiple steel ball A are installed in raceway A, and between adjacent steel ball A, spacing block A is housed, there are two contact points steel ball A and outer ring, and steel ball A and upper strata inner ring, lower floor's inner ring respectively have a contact point; On the excircle sidewall of upper strata inner ring, be provided with annular connecting portion, between the lower surface of connecting portion and the upper surface of outer ring, be provided with raceway B, some steel ball B are installed in raceway B, between adjacent steel ball B, spacing block B is housed.
2. 4 special-shaped thrust ball combination bearings of contact according to claim 1, is characterized in that: described upper strata inner ring is connected with alignment pin by screw with lower floor inner ring.
3. 4 special-shaped thrust ball combination bearings of contact according to claim 2, it is characterized in that: the upper surface of described upper strata inner ring is provided with oil filler point, and oil filler point are connected with raceway A, raceway B.
4. 4 special-shaped thrust ball combination bearings of contact according to claim 3, is characterized in that: in described oil filler point, stopper is installed.
5. according to 4 special-shaped thrust ball combination bearings of contact described in any one in claim 1 to 4, it is characterized in that: on the upper surface of upper strata inner ring and the lower surface of outer ring, be equipped with installing hole.
6. 4 special-shaped thrust ball combination bearings of contact according to claim 5, is characterized in that: on the excircle sidewall of outer ring, be processed with tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521038839.0U CN205244131U (en) | 2015-12-14 | 2015-12-14 | Four -point contact abnormal shape thrust ball combination bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521038839.0U CN205244131U (en) | 2015-12-14 | 2015-12-14 | Four -point contact abnormal shape thrust ball combination bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244131U true CN205244131U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521038839.0U Active CN205244131U (en) | 2015-12-14 | 2015-12-14 | Four -point contact abnormal shape thrust ball combination bearing |
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| Country | Link |
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| CN (1) | CN205244131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083149A (en) * | 2017-12-29 | 2018-05-29 | 三重工股份有限公司 | Wire line guide and rotary drilling rig |
-
2015
- 2015-12-14 CN CN201521038839.0U patent/CN205244131U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083149A (en) * | 2017-12-29 | 2018-05-29 | 三重工股份有限公司 | Wire line guide and rotary drilling rig |
| CN108083149B (en) * | 2017-12-29 | 2024-03-26 | 三一重工股份有限公司 | Wire rope guider and dig rig soon |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |