Pivot eccentric bearing connection structure
By setting locking screw holes and grooves on the inner ring of the bearing and the eccentric bushing, combined with locking screws and set screws, the problem of loosening of the eccentric shaft structure is solved, and a stable connection of the shaft and continuous stable operation of the equipment are achieved.
Patent Information
- Application Number
- CN202423162981.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The bearings of the existing eccentric shaft structure are prone to loosening after long-term use, and the screw locking parts are easily damaged, resulting in equipment vibration and unstable operation.
A shaft eccentric bearing connection structure is designed, which adopts a combination of bearing outer ring, inner ring, locking screw hole, eccentric bushing, groove and locking screw. The locking screw and groove cooperate to ensure that the eccentric bushing and bearing inner ring are tightly linked, and the stability is enhanced by the engagement of set screw and keyway.
This improves the stability of the eccentric bearing connection structure, prevents the locking screws from loosening, and ensures the stability and durability of the equipment during long-term operation.
Smart Images
Figure CN223609140U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing technical field, concretely relates to a pivot eccentric bearing connecting structure. BACKGROUND
[0002] In prior art, the bearing is applied in automobile, airplane, machine tool, motor and the like, because different equipment has different function demand, the corresponding pivot, bearing also has different structure. Among them, eccentric pivot structure needs to set eccentric sleeve on bearing inner sleeve, locks through screw, and after long time use, the looseness is easy to appear, and because of frequent vibration, the part locked by screw is easy to scratch (the damage is bigger with the longer use), so that the equipment cannot normally operate. Therefore, a pivot eccentric bearing connecting structure needs to be designed. SUMMARY
[0003] In view of the defects in prior art, the utility model provides a pivot eccentric bearing connecting structure.
[0004] The utility model discloses a technical scheme that a pivot eccentric bearing connecting structure, including bearing outer ring and bearing inner ring, the one end of bearing inner ring stretches the end surface of bearing outer ring, is set up locking screw hole on the bearing inner ring stretch part, and is equipped with corresponding locking screw in cooperation, the eccentric sleeve is slid with the inside of bearing inner ring and is equipped with the recess of corresponding position with locking screw hole on the outer surface of this eccentric sleeve, the eccentric sleeve is equipped with the pivot insertion hole and corresponding keyway that pass through the upper and lower end faces.
[0005] For better implementation of the utility model, the top screw through hole is set up on the bearing inner ring, the top screw screw hole is set up with the position corresponding to the top screw through hole on the eccentric sleeve, and the top screw screw hole penetrates the bottom of the keyway.
[0006] For better implementation of the utility model, the locking screw hole is multiple, and is evenly spaced along the circumference of the bearing inner ring.
[0007] For better implementation of the utility model, the recess is tapered.
[0008] For better implementation of the utility model, the ratio of the thickest part to the thinnest part of the eccentric sleeve is 3:2.
[0009] For better implementation of the utility model, the thickest part of the eccentric sleeve is 1.5cm, and the thinnest part is 1cm.
[0010] The utility model discloses a beneficial effect is reflected in: the utility model discloses a pivot eccentric bearing connecting structure, through bearing outer ring, bearing inner ring, locking screw hole, locking screw, eccentric shaft sleeve, recess, pivot insertion hole and keyway etc. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will be briefly introduced in the specific embodiment or the prior art description needed to use the drawing. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.
[0012] Figure 1 It is a structural schematic diagram of the pivot eccentric bearing connecting structure of the utility model,
[0013] In the drawings, 1 - bearing outer ring, 2 - bearing inner ring, 3 - eccentric shaft sleeve, 4 - pivot insertion hole, 5 - keyway, 6 - locking screw hole, 7 - recess, 8 - jack screw through hole, 9 - jack screw hole. SPECIFIC EMBODIMENT
[0014] The embodiment of the technical scheme of the utility model will be described in detail below in combination with the drawings. The following examples are only used to more clearly illustrate the technical scheme of the utility model, therefore only as an example, and can not limit the protection scope of the utility model by this.
[0015] In order to make the purpose, technical scheme and advantage of the disclosed embodiment clearer, the technical scheme in the disclosed embodiment will be clearly and completely described in combination with the drawings in the disclosed embodiment. Obviously, the described embodiment is a part of the disclosed embodiment, not all the embodiments. The components of the disclosed embodiment described and shown in the drawings here can be arranged and designed in various different configurations.
[0016] In the description of the present disclosure, it should be pointed out that the orientation or positional relationship indicated by the terms "upper", "inner" and the like is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present disclosure is used, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0017] In the description of the present disclosure, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "arrangement", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.
[0018] It should be noted that, unless otherwise stated, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs.
[0019] Embodiment:
[0020] As Figure 1 shown, the shaft eccentric bearing connecting structure of the utility model, including bearing outer ring 1 and bearing inner ring 2, the bearing inner ring 2 one end protrudes the end face of bearing outer ring 1, on the bearing inner ring 2 protruding part is provided with locking screw hole 6, and is equipped with the corresponding locking screw, on the inner side of the bearing inner ring 2 is slidably fitted with eccentric shaft sleeve 3, recess 7 corresponding with the position of locking screw hole 6 is provided on the outer surface of the eccentric shaft sleeve 3, the eccentric shaft sleeve 3 is provided with shaft insertion hole 4 and the corresponding keyway 5 that pass through the upper and lower end faces. The shaft eccentric bearing connecting structure of the utility model, through the cooperation of bearing outer ring 1, bearing inner ring 2, locking screw hole 6, locking screw, eccentric shaft sleeve 3, recess 7, shaft insertion hole 4 and keyway 5, when using, eccentric shaft sleeve 3 is pressed into bearing inner ring 2, locking screw hole 6 is corresponded with recess 7, then locking screw is tightened, and its end portion is tightly pressed in recess 7, that is, the eccentric shaft sleeve 3 and the bearing inner ring 2 can be closely integrated and linked, the shaft insertion hole 4 is inserted into the shaft, and the keyway 5 is inserted into the corresponding flat key. After a long time of use, the end portion of the locking screw is not easy to jump out of the recess 7, and the stability is improved.
[0021] As a preferred embodiment, a top screw through hole 8 is arranged on the bearing inner ring 2, and a top screw hole 9 corresponding to the top screw through hole 8 is arranged on the eccentric shaft sleeve 3, and the top screw hole 9 penetrates the bottom of the key groove 5. After the locking screw is tightened, the rotating shaft insertion hole 4 is inserted into the rotating shaft, the key groove 5 is inserted into the corresponding flat key, the top screw is inserted from the top screw through hole 8, the top screw is matched with the top screw hole 9, the top screw is rotated, the top screw is inserted into the key groove 5 to tightly press the flat key, and the rotating shaft can be tightly integrated with the bearing assembly, so that the equipment can continuously and stably operate.
[0022] As a preferred embodiment, the locking screw holes 6 are a plurality of and are uniformly distributed along the circumference of the bearing inner ring 2. After such design, the locking screw can be uniformly screwed in the circumferential direction, which can uniformly and stably operate the equipment.
[0023] As a preferred embodiment, the recess 7 is conical. The conical recess 7 can better adapt to the end of the locking screw, so that the locking is more tightly.
[0024] As a preferred embodiment, the ratio of the thickest part to the thinnest part of the eccentric shaft sleeve 3 is 3:2. For example, for a T215 bearing, the thickest part of the eccentric shaft sleeve 3 is 1.5 cm, and the thinnest part is 1 cm.
[0025] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.
Claims
1. A pivot eccentric bearing connection structure, characterized by: The bearing outer ring (1) and the bearing inner ring (2), one end of the bearing inner ring (2) extends out of the end face of the bearing outer ring (1), the locking screw hole (6) is arranged on the extended part of the bearing inner ring (2), and the corresponding locking screw is matched; the eccentric shaft sleeve (3) is slidably matched on the inner side of the bearing inner ring (2), the recess (7) corresponding to the position of the locking screw hole (6) is arranged on the outer surface of the eccentric shaft sleeve (3), and the eccentric shaft sleeve (3) is provided with the rotating shaft insertion hole (4) penetrating the upper and lower end faces and the corresponding key groove (5).
2. The pivot eccentric bearing connection structure according to claim 1, characterized in that: The top screw through hole (8) is arranged on the bearing inner ring (2), the top screw hole (9) corresponding to the position of the top screw through hole (8) is arranged on the eccentric shaft sleeve (3), and the top screw hole (9) penetrates the bottom of the key groove (5).
3. The pivot eccentric bearing connection structure according to claim 2, characterized in that: The locking screw hole (6) is multiple, and is uniformly and spacedly distributed along the circumference of the bearing inner ring (2).
4. The pivot eccentric bearing connection structure according to claim 3, characterized in that: The recess (7) is conical.
5. The pivot eccentric bearing connection structure according to claim 4, characterized in that: The ratio of the thickest part to the thinnest part of the eccentric shaft sleeve (3) is 3:
2.
6. The pivot eccentric bearing connection structure according to claim 5, characterized in that: The thickest part of the eccentric shaft sleeve (3) is 1.5 cm, and the thinnest part is 1 cm.