CN209053961U - A kind of angular contact bearing locking mechanism - Google Patents

A kind of angular contact bearing locking mechanism Download PDF

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Publication number
CN209053961U
CN209053961U CN201821662525.1U CN201821662525U CN209053961U CN 209053961 U CN209053961 U CN 209053961U CN 201821662525 U CN201821662525 U CN 201821662525U CN 209053961 U CN209053961 U CN 209053961U
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angular contact
circumferential
axial
shaft
adjacent
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CN201821662525.1U
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Chinese (zh)
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张敬佩
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Beijing Institute of Environmental Features
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Beijing Institute of Environmental Features
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Abstract

The utility model discloses a kind of angular contact bearing locking mechanisms, are related to field of mechanical technique.One specific embodiment of the angular contact bearing locking mechanism includes: axis, the angular contact ball bearing being set on axis, for fixing the bearing block and baffle ring of angular contact ball bearing.Slot on axis is complementary with the slot on baffle ring.The angular contact bearing locking mechanism of the utility model embodiment can be avoided due to needing the problem of cutting down axis intensity caused by processing screw thread on axis, and it can significantly reduce axial dimension, suitable for non-shaft end, the locking of underload angular contact ball bearing, the application scenarios being limited especially suitable for axial dimension.

Description

Angular contact bearing locking structure
Technical Field
The utility model relates to the technical field of machinery, especially, relate to angular contact bearing locking structure.
Background
The existing angular contact ball bearing locking mostly adopts a structural form of a locking nut and an adjusting gasket. This type of construction requires that the shaft on which the bearing is mounted be threaded, typically with a fine pitch, to mate with the lock nut. In order to ensure that the union nut can withstand the locking forces of an angular contact bearing, it is customary for the union nut to be of a certain thickness, which leads to an increase in the axial dimension, which is impaired in the case of limited axial dimensions.
Therefore, a novel locking structure with complementary grooves, which is simple and easy to operate and does not need to machine threads on a shaft, is urgently needed for a light-load angular contact ball bearing with a limited axial dimension so as to solve the problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to the defect among the prior art, an angular contact bearing locking structure is provided.
The utility model provides an angular contact bearing locking structure, include: the angular contact ball bearing is sleeved on the shaft, and the bearing seat and the retaining ring are used for fixing the angular contact ball bearing; wherein,
the outer peripheral surface of the shaft is provided with a first axial sliding chute extending along the axial direction of the shaft and a first circumferential sliding chute which is arranged in the extending direction of the first axial sliding chute and communicated with the first axial sliding chute; a first bulge is formed between every two adjacent first axial sliding grooves and the first circumferential sliding groove between the two adjacent first axial sliding grooves;
the outer ring of the baffle ring is abutted with at least one part of the end surface of the angular contact ball bearing; the inner ring of the baffle ring is provided with a second axial chute extending inwards from the end part of the baffle ring and a second circumferential chute which is arranged in the extending direction of the second axial chute and communicated with the second axial chute; a second bulge is formed between two adjacent second axial sliding grooves and a second circumferential sliding groove between the two adjacent second axial sliding grooves;
the second protrusion can slide into the shaft along the extending direction of the first axial sliding groove and rotate relative to the shaft along the first circumferential sliding groove so as to be clamped with the first protrusion.
Optionally, a threaded hole is formed in the baffle ring; the angular contact bearing locking structure further comprises: and the adjusting screw corresponding to each threaded hole is abutted with the end face of the angular contact ball bearing after penetrating through the threaded hole.
Optionally, the angular contact bearing locking structure further comprises: and the anti-loosening wave plate is arranged between each adjusting screw and the baffle ring.
Optionally, the baffle ring is provided with at least two threaded holes, and the at least two threaded holes are uniformly distributed along the circumferential direction of the baffle ring.
Optionally, each first axial sliding groove is communicated with one first circumferential sliding groove, and two adjacent first circumferential sliding grooves are not communicated; or any two adjacent first circumferential chutes are communicated with each other.
Optionally, each second axial sliding groove is communicated with one second circumferential sliding groove, and two adjacent second circumferential sliding grooves are not communicated; or any two adjacent second circumferential chutes are communicated with each other.
Optionally, the shaft is sleeved with two angular contact ball bearings mounted back to back.
Implement the utility model discloses a, following beneficial effect has: the utility model discloses angular contact bearing locking structure can avoid because the problem of the reduction axle intensity that leads to is epaxial processing screw thread to the needs, and can reduce axial dimensions by a wide margin, is applicable to non-axle head, light load angular contact ball bearing's locking, the limited application scene of specially adapted axial dimensions.
Drawings
Fig. 1 shows an angular contact bearing locking structure according to a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a shaft in an embodiment of the present invention;
FIG. 3 is a schematic structural view of a retainer ring according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a wave plate for preventing loosening according to an embodiment of the present invention;
FIG. 5 is a schematic view of the sliding process of the retainer ring into the shaft according to the embodiment of the present invention (the arrow indicates the sliding direction);
FIG. 6 is a schematic view of an embodiment of the present invention after the retainer ring has been slid into the shaft;
FIG. 7 is a schematic view of an embodiment of the present invention illustrating the rotation of the retainer ring relative to the shaft;
FIG. 8 is a schematic view of an embodiment of the present invention after the retainer ring is rotated into position;
FIG. 9 is a schematic view of the process of installing the set screw according to an embodiment of the present invention;
fig. 10 is a schematic view of the embodiment of the present invention after the adjustment screw is installed.
In the figure: 1: a shaft; 11: a first axial chute; 12: a first circumferential chute; 13: a first protrusion; 2: a baffle ring; 21: a second axial chute; 22: a second circumferential chute; 23: a second protrusion; 24: a threaded hole; 3: a locking wave plate; 4: adjusting the screw; 5: angular contact ball bearings; 6: and a bearing seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 shows an angular contact bearing locking structure according to an embodiment of the present invention. As shown in fig. 1, an angular contact bearing locking structure according to an embodiment of the present invention includes: the bearing comprises a shaft 1, an angular contact ball bearing 5 sleeved on the shaft 1, a bearing seat 6 used for fixing the angular contact ball bearing 5, and a baffle ring 2. The installation mode of the angular contact ball bearing 5 can be selectively determined according to actual conditions, for example, two angular contact ball bearings 5 which are installed back to back or face to face can be sleeved on the shaft 1.
As shown in fig. 2, the outer peripheral surface of the shaft 1 is provided with a first axial runner 11 extending in the axial direction of the shaft 1, and a first circumferential runner 12 provided in the extending direction of the first axial runner 11 and communicating with the first axial runner 11; a first bulge 13 is formed between two adjacent first axial sliding chutes 11 and the first circumferential sliding chute 12 between the two adjacent first axial sliding chutes;
as shown in fig. 3, the outer ring of the retainer ring 2 abuts at least a part of the end surface of the angular ball bearing 5; the inner ring of the baffle ring 2 is provided with a second axial chute 21 extending inwards from the end of the baffle ring 2, and a second circumferential chute 22 arranged in the extending direction of the second axial chute 21 and communicated with the second axial chute 21; a second bulge 23 is formed between two adjacent second axial sliding chutes 21 and the second circumferential sliding chute 22 between the two adjacent second axial sliding chutes;
the second protrusion 23 can slide into the shaft 1 along the extending direction of the first axial sliding groove 11 and rotate relative to the shaft 1 along the first circumferential sliding groove 12 to be clamped with the first protrusion 13.
In the embodiment of the present invention, the grooves (including the first axial sliding groove 11 and the first circumferential sliding groove 12) on the shaft 1 are complementary to the grooves (including the second axial sliding groove 21 and the second circumferential sliding groove 22) on the retainer ring 2. During assembly, the second protrusion 23 on the retaining ring 2 slides into the shaft 1 along the groove of the first axial sliding groove 11 on the outer peripheral surface of the shaft 1, and then rotates along the first circumferential sliding groove 12 communicated with the first axial sliding groove 11, so that the second protrusion 23 in the retaining ring 2 is aligned and clamped with the first protrusion 13 on the shaft 1, and the retaining ring 2 is clamped with the shaft 1. The mode of the fender ring locking of complementary groove in area is adopted, reduced axial dimensions's purpose has effectively been realized, the utility model discloses need not be at epaxial turning screw to avoided because the reduction of turning screw counter shaft intensity itself, the structure is simple and easy, and assembly adjustment is convenient to save time.
In some embodiments, each first axial runner 11 is in communication with one first circumferential runner 12, and two adjacent first circumferential runners 12 are not in communication with each other. For example, the shaft 1 is provided with two first axial chutes 11 extending along the axial direction of the shaft 1, the extending end of each first axial chute 11 is provided with a first circumferential chute 12 extending from the extending end of the first axial chute 11 along the circumferential direction of the shaft 1, the first axial chute 11 and the first circumferential chute 12 form an L-shaped structure, and the first circumferential chutes 12 corresponding to the two first circumferential chutes 12 are not communicated with each other. In this way, the structure of the shaft 1 reduced by the grooving can be reduced, and the reduction of the strength of the shaft itself by the grooving can be reduced.
In other embodiments, there is communication between any two adjacent first circumferential chutes 12. For example, the shaft 1 is provided with three first axial chutes 11 extending in the axial direction of the shaft 1, the extending end of each first axial chute 11 is provided with a first circumferential chute 12 extending from the extending end of the first axial chute 11 in the circumferential direction of the shaft 1, and an L-shaped structure is formed between the first axial chute 11 and the first circumferential chute 12. The first circumferential chutes 12 corresponding to the three first circumferential chutes 12 are connected and communicated with each other at first positions to form an annular groove. Therefore, the rotation angle range of the baffle ring 2 relative to the shaft 1 can be increased, and the baffle ring is convenient to process, assemble and disassemble.
The baffle ring 2 can be provided with a threaded hole 24; the angular contact bearing locking structure may further include: the adjusting screw 4 corresponding to each threaded hole 24 is inserted into the threaded hole 24 and then abuts against the end face of the angular ball bearing 5. The pre-tightening force of the angular contact ball bearing 5 can be adjusted by adjusting the screwing-in depth of the adjusting screw 4, so that the purposes of locking the angular contact ball bearing and improving the rotation precision of a shaft system are achieved. The number of the threaded holes 24 on the retainer ring 2 can be selectively determined according to actual conditions, for example, 2, 3, 6 and the like are provided. In an alternative embodiment, at least two threaded holes 24 are provided on the retainer ring 2, and the at least two threaded holes 24 are evenly distributed along the circumferential direction of the retainer ring 2. The plurality of threaded holes are adopted, so that the pretightening force of the angular contact ball bearing 5 can be accurately adjusted, the threaded holes are uniformly distributed, and the pretightening force distribution uniformity of the angular contact ball bearing 5 can be improved.
Fig. 4 is a schematic structural diagram of a wave plate for preventing loose in an embodiment of the present invention. In an alternative embodiment, the angular contact bearing locking structure may further include: and the anti-loosening wave plate 3 is arranged between each adjusting screw 4 and the baffle ring 2. The anti-loosening wave plate 3 is arranged, so that the contact tightness between the adjusting screw 4 and the baffle ring 2 can be improved.
The angular contact bearing locking structure according to the embodiment of the present invention is described below with reference to fig. 5 to 10.
During assembly, the retaining ring 2 with the complementary groove is firstly slid in along the groove of the shaft 1. Specifically, the second protrusion 23 of the retainer ring 2 slides into the shaft 1 along the groove of the first axial sliding groove 11 on the outer circumferential surface of the shaft 1, as shown in fig. 5 and 6.
Then, the retainer ring 2 is rotated along the extending direction of the first circumferential sliding groove 12 communicated with the first axial sliding groove 11, so that the second protrusion 23 in the retainer ring 2 is aligned and clamped with the first protrusion 13 on the shaft 1, and the retainer ring 2 is clamped with the shaft 1, as shown in fig. 7 and 8.
Then, 6 adjusting screws 4 with anti-loose wave plates 3 are installed in 6 threaded holes 214 of the retainer ring 2, and the pretightening force of the angular contact ball bearing 5 is adjusted by adjusting the screwing depth of the 6 adjusting screws 4, so that the purposes of locking the bearing and improving the rotation precision of the shafting are achieved, as shown in fig. 9 and 10.
The first axial runner 11 of the shaft 1 may extend from the end of the shaft 1 into the shaft 1, or may extend from another position on the outer peripheral surface of the shaft 1 in the axial direction or at a certain angle to the axial direction. When the first axial chute 11 on the axis 1 extends along the axial direction or at a certain angle with the axial direction from other positions on the outer peripheral surface of the axis 1, the angular contact bearing locking structure of the embodiment of the utility model provides a locking to the non-axis end angular contact ball bearing can be realized.
To sum up, the utility model discloses an adopt the fender ring and axle, screw and the locking wave plate of taking complementary groove to realize angular contact ball bearing's locking, this kind of structure had both shortened axial dimension, had avoided again because the weakening of processing screw counter shaft intensity itself.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. An angular contact bearing locking structure, comprising: the device comprises a shaft (1), an angular contact ball bearing (5) sleeved on the shaft (1), a bearing seat (6) used for fixing the angular contact ball bearing (5), and a baffle ring (2); wherein,
the outer peripheral surface of the shaft (1) is provided with a first axial chute (11) extending along the axial direction of the shaft (1) and a first circumferential chute (12) which is arranged in the extending direction of the first axial chute (11) and communicated with the first axial chute (11); a first bulge (13) is formed between two adjacent first axial sliding chutes (11) and a first circumferential sliding chute (12) between the two adjacent first axial sliding chutes;
the outer ring of the baffle ring (2) is abutted with at least one part of the end surface of the angular contact ball bearing (5); the inner ring of the baffle ring (2) is provided with a second axial sliding groove (21) extending inwards from the end part of the baffle ring (2), and a second circumferential sliding groove (22) which is arranged in the extending direction of the second axial sliding groove (21) and communicated with the second axial sliding groove (21); a second bulge (23) is formed between two adjacent second axial sliding chutes (21) and a second circumferential sliding chute (22) between the two adjacent second axial sliding chutes;
the second protrusion (23) can slide into the shaft (1) along the extending direction of the first axial sliding groove (11) and rotate relative to the shaft (1) along the first circumferential sliding groove (12) so as to be clamped with the first protrusion (13).
2. Angular contact bearing locking arrangement according to claim 1, wherein the catch ring (2) is provided with a threaded hole (24); the angular contact bearing locking structure further comprises: and the adjusting screw (4) corresponds to each threaded hole (24), and the adjusting screw (4) penetrates through the threaded hole (24) and then abuts against the end face of the angular contact ball bearing (5).
3. The angular contact bearing locking structure of claim 2, further comprising: and the anti-loosening wave plate (3) is arranged between each adjusting screw (4) and the baffle ring (2).
4. Angular contact bearing locking arrangement according to claim 2, wherein the retainer ring (2) is provided with at least two threaded holes (24), the at least two threaded holes (24) being evenly distributed along the circumferential direction of the retainer ring (2).
5. Angular contact bearing locking arrangement according to claim 1, wherein each first axial runner (11) communicates with one first circumferential runner (12), and two adjacent first circumferential runners (12) do not communicate with each other; or any two adjacent first circumferential chutes (12) are communicated with each other.
6. Angular contact bearing locking arrangement according to claim 1, wherein each second axial runner (21) communicates with one second circumferential runner (22), and adjacent two second circumferential runners (22) do not communicate with each other; or any two adjacent second circumferential chutes (22) are communicated with each other.
7. Angular contact bearing locking arrangement according to claim 1, characterized in that two angular contact ball bearings (5) mounted back to back are sleeved on the shaft (1).
CN201821662525.1U 2018-10-15 2018-10-15 A kind of angular contact bearing locking mechanism Active CN209053961U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821662525.1U CN209053961U (en) 2018-10-15 2018-10-15 A kind of angular contact bearing locking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821662525.1U CN209053961U (en) 2018-10-15 2018-10-15 A kind of angular contact bearing locking mechanism

Publications (1)

Publication Number Publication Date
CN209053961U true CN209053961U (en) 2019-07-02

Family

ID=67050565

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821662525.1U Active CN209053961U (en) 2018-10-15 2018-10-15 A kind of angular contact bearing locking mechanism

Country Status (1)

Country Link
CN (1) CN209053961U (en)

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