CN220015947U - Bearing flywheel easy to assemble - Google Patents
Bearing flywheel easy to assemble Download PDFInfo
- Publication number
- CN220015947U CN220015947U CN202321248574.1U CN202321248574U CN220015947U CN 220015947 U CN220015947 U CN 220015947U CN 202321248574 U CN202321248574 U CN 202321248574U CN 220015947 U CN220015947 U CN 220015947U
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- bearing
- outer sleeve
- inner core
- flywheel
- periphery
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- 238000000034 method Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model discloses an easily assembled bearing flywheel, and belongs to the field of flywheels. The bearing flywheel easy to assemble includes one outer sleeve, one inner core embedded inside the outer sleeve and several flywheel sheets set outside the outer sleeve; the flywheel further comprises at least one bearing; the bearing inner ring is sleeved on the assembly step at the periphery of the inner core; the inner side of the outer sleeve is directly or indirectly provided with a limit step; the limiting step is matched with the assembling step, and at least is abutted with the side wall where the bearing outer ring is positioned so as to axially limit and assemble the corresponding bearing; when the bearing is installed, at least one limiting step has a trend of moving towards the inner side of the outer sleeve so as to directly or indirectly press the bearing to realize axial locking; the novel lining core can realize the purpose of ensuring more stable matching of the lining core and the outer sleeve, and has higher strength and longer service life.
Description
Technical Field
The utility model belongs to the field of flywheels, and particularly relates to an easily assembled bearing flywheel.
Background
For the existing multistage flywheel, if flywheel sheets are added or reduced on the flywheel with the same specification to reduce or increase the transmission ratio, the wire gears with different specifications are required to be replaced to fix the inner core, so that accidents caused by separation of the inner core when the wheel shaft rotates can be avoided.
The outer sleeve and the inner core of the existing flywheel are rotated relatively through balls. During disassembly and assembly, the balls are easy to fall off, so that the disassembly and assembly operation is at risk. And because the structural characteristic of the ball itself, the contact area between the ball and the inner core and the outer sleeve is small, and the assembly strength of the ball itself is relatively low, the problems of short service life and low bearing strength of the flywheel are also existed. In addition, the ball itself has the disadvantages of high rolling noise and low concentricity between the inner core and the outer sleeve.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an easily assembled bearing flywheel, which can realize the purpose of ensuring more stable matching of an inner core and an outer sleeve, higher strength and longer service life.
The utility model relates to an easily assembled bearing flywheel, which comprises an outer sleeve, an inner core embedded in the outer sleeve and a plurality of flywheel pieces sleeved outside the outer sleeve step by step; the flywheel further comprises at least one bearing; the bearing inner ring is sleeved on the assembly step at the periphery of the inner core; the inner side of the outer sleeve is directly or indirectly provided with a limit step; the limiting step is matched with the assembling step, and at least is abutted with the side wall where the bearing outer ring is positioned so as to axially limit and assemble the corresponding bearing; when the bearing is installed, at least one limiting step has a trend of moving towards the inner side of the outer sleeve so as to directly or indirectly press the bearing to realize axial locking.
As a further development of the utility model, the inner core surface is provided with at least two oppositely directed mounting steps for mounting the corresponding bearing in opposite axial directions.
As a further improvement of the utility model, the bearing comprises an inner bearing; the periphery of the end part of the inner core, which is close to the inner side of the outer sleeve, is provided with an inner assembly step; the inner bearing inner ring is sleeved on the inner assembly step; an inner limit step matched with the inner assembly step is arranged on the inner wall of the outer sleeve; the side wall of the inner bearing at least the outer ring is abutted with the inner limit step to limit axially.
As a further improvement of the utility model, the bearing comprises an outer bearing; an outer assembly step is formed on the periphery of the end part of the inner core, which is close to the outer side of the outer sleeve; the inner ring of the outer bearing is sleeved on the outer assembly step; an outer limiting part is detachably connected to the port of the outer sleeve, which is close to the outer side; the inner side wall of the outer limiting piece is provided with an outer limiting step matched with the outer assembling step; the side wall of the outer bearing at least where the outer ring is located is abutted with the outer limiting step to axially limit.
As a further improvement of the utility model, the side wall of the bearing outer ring is only abutted with the corresponding limit step; the side wall of the bearing inner ring is only abutted with the corresponding assembly step.
As a further improvement of the utility model, the outer limiting piece is a wire stop; the periphery of the wire baffle is in threaded connection with the inner wall of the port of the outer sleeve, which is close to the outer side, so as to lock and clamp the outer bearing; the inner ring of the wire baffle keeps a gap with the periphery of the inner core.
As a further improvement of the utility model, the two ends of the outer sleeve are respectively detachably connected with an outer limiting piece and an inner limiting piece; the outer limiting piece is directly or indirectly abutted with the inner core to axially lock the inner core; the inner limiting piece is directly or indirectly abutted with the flywheel pieces to axially lock the flywheel pieces.
As a further improvement of the utility model, a ratchet mechanism is arranged between the outer sleeve and the inner core so as to enable the outer sleeve and the inner core to rotate in a unidirectional way relatively; the ratchet mechanism is positioned outside the middle of the inner core.
As a further improvement of the utility model, the ratchet mechanism comprises a plurality of internal teeth arranged on the inner wall of the outer sleeve and at least one pawl matched with the internal teeth; the pawl is elastically connected to the periphery of the inner core in a rotating way; the pawl is connected with the periphery of the inner core through an elastic piece so as to swing relatively to the inner core under the limit of the elastic piece.
As a further improvement of the utility model, the elastic element is an elastic ring; the periphery of the inner core is provided with a mounting groove; the pawl is embedded in the mounting groove; the elastic ring is arranged on the periphery of the pawl to elastically press the pawl, so that the pawl always keeps a certain angle rotation trend relative to the periphery of the inner core.
Compared with the prior art, the utility model has the beneficial effects that:
the outer sleeve and the inner core of the flywheel realize relative rotation through bearings; the rolling friction of the bearing is small, and the bearing is in surface contact with the outer sleeve and the inner core, so that the contact surface is larger than the ball, the rotation life of the flywheel is longer, and the rotation is more stable; in addition, the inner ring of the bearing is abutted with the assembling step on the surface of the inner core, so that the bearing and the inner core are assembled into a whole, the flywheel is convenient to assemble and disassemble, and the risk of falling and losing is effectively avoided compared with the ball separated from the inner core.
The bearings are arranged at the two ends of the inner core, so that the stress of the inner core is balanced, and the flywheel has longer rotation life and more stable rotation.
An inner bearing is sleeved outside the inner end part of the inner core, and an outer bearing is sleeved outside the outer end part of the inner core; the outer ring of the inner bearing is abutted with the inner limit step of the outer sleeve, and the inner ring of the inner bearing is abutted with the inner limit step of the inner core; the outer ring of the outer bearing is abutted with the outer limit step of the wire stopper; the inner ring of the outer bearing is abutted with the outer assembly step of the inner core; the arrangement makes the outer bearing pressed to move inwards when the wire stopper is rotated and locked, improves the tight fitting degree between the outer bearing and the inner core, and the inner core has a tendency of moving inwards under the pressing of the outer bearing, improves the tight fitting degree between the inner bearing and the inner core, and further strengthens the tight fitting degree between the inner bearing and the outer sleeve. Therefore, the outer bearing and the inner bearing can be simultaneously locked in the process of only locking the wire stopper, the assembly efficiency is high, the stability is good, and the coaxiality is high.
The ratchet mechanism ensures that the inner core and the outer sleeve rotate in one direction, and the bearing can use a cheaper bidirectional bearing, so that the cost is reduced.
The wire baffle and the end cover are respectively positioned at two ends of the outer sleeve, so that the flywheel can be conveniently disassembled and assembled.
The bearing is adopted as a connecting piece, so that the concentricity of the assembled outer sleeve and the assembled inner core is good, and the motion noise generated by the relative rotation of the outer sleeve and the inner core is small due to the structural characteristic of the bearing.
Drawings
FIG. 1 is a general assembly view of a flywheel according to the present utility model;
FIG. 2 is an exploded view of the flywheel of the present utility model;
FIG. 3 is a schematic view of the construction of the inner portion of the jacket of the present utility model;
FIG. 4 is a schematic view of the detent connection of the present utility model;
FIG. 5 is a schematic view of the connection structure between the inner core and the wire stopper according to the present utility model;
FIG. 6 is a schematic view of the junction of the outer sleeve and the inner bearing of the present utility model;
FIG. 7 is a schematic view of the junction of the inner core and the inner bearing of the present utility model;
FIG. 8 is a schematic cross-sectional view of a wire stop of the present utility model;
FIG. 9 is a front view of a wire stop of the present utility model;
fig. 10 is a schematic perspective view of an outer bearing according to the present utility model.
The reference numerals in the figures illustrate:
the flywheel comprises an outer sleeve 1, an inner core 2, a wire baffle 3, an end cover 4, an outer bearing 5, an inner bearing 6 and a flywheel sheet 7.
Detailed Description
First embodiment: the bearing flywheel easy to assemble comprises an outer sleeve 1, an inner core 2 embedded in the outer sleeve 1, a plurality of flywheel pieces 4 sleeved outside the outer sleeve 1 step by step and at least one bearing.
The outer surface of the outer sleeve 1 is in a step shape with the diameter gradually reduced along the axial direction, and at least one flywheel piece 4 is detachably and gradually connected to the step-shaped surface of the outer sleeve 1 in sequence; the inner hole in the center of the outer sleeve 1 is also in a step shape with the diameter gradually reduced along the axial direction; in the present utility model, the small end direction of the jacket 1 is referred to as the inner side, and the large end direction of the jacket 1 is referred to as the outer side.
The outer periphery of the inner side end part of the inner core 2 is in a step shape with gradually reduced diameter along the axial direction so as to form an assembling step; the outer diameter of the outer end portion of the inner core 2 is smaller than that of the middle portion to form an assembling step for assembling the bearing from the other direction.
The bearing inner ring is tightly sleeved on an assembly step at the periphery of the inner core 2; the inner side of the outer sleeve 1 is directly or indirectly provided with a limit step. The direct arrangement of the limiting step means that the limiting step is arranged on the inner wall of the outer sleeve 1; the indirect provision of the limiting step means that the limiting step is formed by providing other limiting members on the inner side of the jacket 1.
The limiting step is matched with the assembling step to axially limit and assemble the corresponding bearing; the bearing outer race is fitted against the inner wall of the outer sleeve 1 or slightly maintains a gap.
The outer sleeve 1 and the inner core 2 of the flywheel realize relative rotation through bearings; because the rolling friction of the bearing is small, and the bearing is in surface contact with the outer sleeve 1 and the inner core 2, the contact surface is larger than the ball, so that the flywheel has longer rotation life, more stable rotation, lower rotation noise and better concentricity.
Specific embodiment II: on the basis of the first embodiment, bearings are sleeved outside Zhou Jun at two end parts of the inner core 2. The bearings are divided into an outer bearing 5 and an inner bearing 6.
The periphery of the end part of the inner core 2, which is close to the inner side of the outer sleeve 1, is provided with an inner assembly step; the inner ring of the inner bearing 6 is sleeved on the inner assembly step; the inner wall of the outer sleeve 1 is provided with an inner limit step matched with the inner assembly step; the side wall (the side wall facing the inner side) of the outer ring of the inner bearing 6 is abutted with the inner limit step to axially limit.
The periphery of the end part of the inner core 2, which is close to the outer side of the outer sleeve 1, is provided with an outer assembly step; the inner ring of the outer bearing 5 is sleeved on the outer assembly step; an outer limiting part is detachably connected to the port of the outer sleeve 1, which is close to the outer side; the inner side wall of the outer limiting piece is provided with an outer limiting step matched with the outer assembling step; the side wall (the side wall facing the outer side) of the outer ring of the outer bearing 5 is abutted with the outer limit step to axially limit.
The outer limiting piece is a wire stop 3; the periphery of the wire baffle 3 is in threaded connection with the inner wall of the port, close to the outer side, of the outer sleeve 1 so as to lock and clamp the outer bearing 5 and the inner core 2.
An end cover is connected or fixedly connected at the inner end of the outer sleeve 1 in a threaded manner; the end caps directly or indirectly abut to axially lock the flywheel pieces 7.
It should be noted that, whether the outer bearing 5 or the inner bearing 6, the side wall of the outer ring of the bearing is only abutted against the corresponding limit step; the side wall of the bearing inner ring is only abutted with the corresponding assembly step.
By the arrangement, when the wire stopper 3 is rotationally locked, the outer bearing 5 is pressed to move inwards, the tight fit degree between the outer bearing 5 and the inner core 2 is improved, the inner core 2 has a tendency to move inwards under the pressing of the outer bearing 5, the tight fit degree between the inner bearing 6 and the inner core 2 is improved, and the tight fit degree between the inner bearing 6 and the outer sleeve 1 is further enhanced. Therefore, the outer bearing 5 and the inner bearing 6 can be simultaneously locked in the process of only locking the wire stopper 3, so that the assembly efficiency is high, the stability is good, and the coaxiality is high.
Third embodiment: on the basis of the second embodiment, a ratchet mechanism is arranged between the outer sleeve 1 and the inner core 2 so as to enable the outer sleeve 1 and the inner core 2 to rotate in a unidirectional way relatively; the ratchet mechanism is positioned outside the middle of the inner core 2.
The ratchet mechanism comprises a plurality of internal teeth arranged on the inner wall of the outer sleeve 1 and at least one pawl matched with the internal teeth; the pawl is elastically and rotatably connected to the periphery of the inner core 2; the pawl is connected with the periphery of the inner core 2 through an elastic piece so as to swing relatively to the inner core 2 under the limit of the elastic piece.
The elastic piece is an elastic ring; the periphery of the inner core 2 is provided with a mounting groove; the pawl is embedded in the mounting groove; the elastic ring is arranged on the periphery of the pawl to elastically press the pawl, so that the pawl always keeps a certain angle rotation trend relative to the periphery of the inner core 2.
The rest of the flywheel is not disclosed, and reference can be made to a flywheel structure with the patent number of CN202220402805.9, and the technical scheme disclosed in the present utility model belongs to an improvement scheme of the patent, so that the rest of the structures which are not explicitly expressed are not described herein.
Claims (10)
1. An easily assembled bearing flywheel comprises an outer sleeve (1), an inner core (2) embedded in the outer sleeve (1), and a plurality of flywheel pieces (7) sleeved outside the outer sleeve (1) step by step; the method is characterized in that: further comprising at least one bearing; the bearing inner ring is sleeved on an assembly step at the periphery of the inner core (2); the inner side of the outer sleeve (1) is directly or indirectly provided with a limit step; the limiting step is matched with the assembling step, and at least is abutted with the side wall where the bearing outer ring is positioned so as to axially limit and assemble the corresponding bearing; when the bearing is installed, at least one limiting step has a trend of moving towards the inner side of the outer sleeve (1) so as to directly or indirectly press the bearing to realize axial locking.
2. An easily assembled bearing flywheel as defined in claim 1 wherein: the surface of the inner core (2) is provided with at least two assembling steps with opposite directions so as to mount corresponding bearings in opposite axial directions.
3. An easily assembled bearing flywheel as defined in claim 1 wherein: the side wall of the bearing outer ring is only abutted with the corresponding limiting step; the side wall of the bearing inner ring is only abutted with the corresponding assembly step.
4. An easily assembled bearing flywheel as defined in claim 1 wherein: the bearing comprises an inner bearing (6); the periphery of the end part of the inner core (2) close to the inner side of the outer sleeve (1) is provided with an inner assembly step; the inner ring of the inner bearing (6) is sleeved on the inner assembly step; an inner limit step matched with the inner assembly step is arranged on the inner wall of the outer sleeve (1); the side wall of the inner bearing (6) at least where the outer ring is positioned is abutted with the inner limit step to be axially limited.
5. An easily assembled bearing flywheel as defined in claim 1 wherein: the bearing comprises an outer bearing (5); an outer assembly step is arranged on the periphery of the end part of the inner core (2) close to the outer side of the outer sleeve (1); the inner ring of the outer bearing (5) is sleeved on the outer assembly step; an outer limiting part is detachably connected to the port of the outer sleeve (1) close to the outer side; the inner side wall of the outer limiting piece is provided with an outer limiting step matched with the outer assembling step; the side wall of the outer bearing (5) at least where the outer ring is positioned is abutted with the outer limit step to be axially limited.
6. An easily assembled bearing flywheel as in claim 5 wherein: the outer limiting piece is a wire stop (3); the periphery of the wire baffle (3) is in threaded connection with the inner wall of the port, close to the outer side, of the outer sleeve (1) so as to lock and clamp the outer bearing (5); the inner ring of the wire baffle (3) is kept in clearance with the periphery of the inner core (2).
7. An easily assembled bearing flywheel as defined in claim 1 wherein: the two ends of the outer sleeve (1) are respectively detachably connected with an outer limiting piece and an inner limiting piece; the outer limiting piece is directly or indirectly abutted with the inner core (2) to axially lock the inner core (2); the inner limiting piece is directly or indirectly abutted with the flywheel pieces (7) to axially lock the flywheel pieces (7).
8. An easily assembled bearing flywheel as defined in claim 1 wherein: a ratchet mechanism is arranged between the outer sleeve (1) and the inner core (2) so as to enable the outer sleeve (1) and the inner core (2) to rotate in a unidirectional way relatively; the ratchet mechanism is positioned outside the middle part of the inner core (2).
9. An easily assembled bearing flywheel as in claim 8 wherein: the ratchet mechanism comprises a plurality of internal teeth arranged on the inner wall of the outer sleeve (1) and at least one pawl matched with the internal teeth; the pawl is elastically connected to the periphery of the inner core (2) in a rotating way; the pawl is connected with the periphery of the inner core (2) through an elastic piece so as to swing relatively to the inner core (2) under the limit of the elastic piece.
10. An easily assembled bearing flywheel as in claim 9 wherein: the elastic piece is an elastic ring; the periphery of the inner core (2) is provided with a mounting groove; the pawl is embedded in the mounting groove; the elastic ring is arranged on the periphery of the pawl to elastically press the pawl, so that the pawl always keeps a certain angle rotation trend relative to the periphery of the inner core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248574.1U CN220015947U (en) | 2023-05-19 | 2023-05-19 | Bearing flywheel easy to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248574.1U CN220015947U (en) | 2023-05-19 | 2023-05-19 | Bearing flywheel easy to assemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220015947U true CN220015947U (en) | 2023-11-14 |
Family
ID=88672536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321248574.1U Active CN220015947U (en) | 2023-05-19 | 2023-05-19 | Bearing flywheel easy to assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220015947U (en) |
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2023
- 2023-05-19 CN CN202321248574.1U patent/CN220015947U/en active Active
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