CN111900830B

CN111900830B - Overrunning belt pulley of axial driving generator

Info

Publication number: CN111900830B
Application number: CN202010596803.3A
Authority: CN
Inventors: 王文焕
Original assignee: Alt Jiangsu Industrial Co ltd
Current assignee: Alt Jiangsu Industrial Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2022-12-13
Anticipated expiration: 2040-06-28
Also published as: CN111900830A

Abstract

The invention belongs to the technical field of belt transmission systems, and particularly relates to an overrunning belt pulley of an axial drive generator, which comprises a belt pulley, a planar one-way roller bearing, an inner shaft, a shaft lining ring and a ball bearing, wherein gear teeth are arranged on the outer surface of the belt pulley, a space ring is arranged on the inner surface of the belt pulley, a front assembly inner circular surface and a rear assembly inner circular surface are respectively arranged on the inner surface of the belt pulley corresponding to the front end and the rear end of the space ring, and the planar one-way roller bearing comprises a bearing sheet body and a supporting sheet. According to the invention, the traditional motor belt pulley is optimally designed into a one-way belt pulley from a rigid belt pulley, when the linear speed of the belt is lower than that of the generator belt pulley, the shell of the belt pulley is rapidly separated from the shaft through the one-way clutch mechanism, so that the vibration of an engine accessory transmission system is reduced, the vibration of the belt is inhibited, the slip rate of the belt is reduced, abnormal sound is effectively eliminated, the energy consumption is reduced, and meanwhile, the service life of each accessory system component can be obviously prolonged.

Description

Overrunning belt pulley of axial driving generator

Technical Field

The invention relates to the technical field of belt transmission systems, in particular to an axial drive generator overrunning belt pulley.

Background

Traditional generator belt pulley is rigid belt pulley, and when the engine stopped or the derailleur shifted gears, belt pulley linear velocity can change, and generator rotor is faster at powerful inertia of rotation, leads to taking place "chirping, the abnormal sound of chirping", system's wearing and tearing, life-span reduction. Meanwhile, due to the inherent irregular vibration of the engine, the instantaneous running irregularity of the belt pulley is caused, the irregularity and the running of the generator rotor are asynchronous, a large amount of effective power is consumed, and a large amount of energy is lost.

Disclosure of Invention

Technical problem to be solved

In view of the deficiencies of the prior art, the present invention provides an axial drive generator overrunning pulley that solves the problems set forth in the background art above.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an axial drive generator overrunning belt pulley comprises a belt pulley, a planar one-way roller bearing, an inner shaft, a shaft lining ring and a ball bearing, wherein gear teeth are arranged on the outer surface of the belt pulley, a space ring is arranged on the inner surface of the belt pulley, a front assembly inner circular surface and a rear assembly inner circular surface are respectively arranged on the inner surface of the belt pulley corresponding to the front end and the rear end of the space ring, the planar one-way roller bearing comprises a bearing sheet body and a support sheet, a first outer circular surface is arranged on the outer surface of the bearing sheet body and is tightly matched with the front assembly inner circular surface, an inclined surface is arranged on the bearing sheet body, a roller matched with the inclined surface is arranged in the bearing sheet body, the side plane of the lining ring is attached to the side surface of the space ring, the belt pulley, the bearing sheet body, the roller and the support sheet are in rolling instantaneous rigid connection, key grooves are uniformly distributed on the inner surface of the lining ring, convex keys in sliding fit with the key grooves are uniformly distributed on the inner surface, a diameter expansion end is arranged at one end of the lining ring, a diameter expansion end is arranged at the front side surface and is arranged at the back side surface of the lining ring, blocking edges of the inner diameter ring lining ring, blocking edges are arranged at the end of the inner diameter ring, a connecting end of the inner diameter ring, a second expansion end of the inner diameter ring is tightly matched with the inner circular surface of the inner diameter bearing, a second outer diameter bearing, and is arranged on the inner diameter bearing, and is closely matched with the outer diameter blocking surface of the inner diameter bearing, and is arranged on the inner diameter surface of the inner diameter bearing ring, and is closely matched with the inner diameter surface of the second outer diameter bearing.

As a preferable technical scheme of the invention, the gear teeth are wedge-shaped, and the gear teeth are matched with the V-ribbed belt.

In a preferred embodiment of the present invention, the bushing ring is made of gray cast iron, nylon or an alloy such as tin, lead, copper, antimony, or the like.

In a preferred technical scheme of the invention, the inner shaft is hollow, a thread connected with an engine shaft is arranged on the inner wall of the inner shaft, and a polygonal hole is arranged on the inner wall surface of the inner shaft corresponding to the diameter-expanding circular surface.

(III) advantageous effects

Compared with the prior art, the invention provides the overrunning belt pulley of the axial drive generator, which has the following beneficial effects:

this axial drive generator surmounts belt pulley, with traditional motor pulley by rigidity belt pulley optimal design for one-way belt pulley, when belt linear velocity is less than generator pulley linear velocity, the belt pulley shell realizes breaking away from rapidly through one-way clutch mechanism with the axle, has reduced engine accessory transmission system's vibration, suppresses the shake of belt, reduces the slippage rate of belt, effectively eliminates abnormal sound, reduces energy resource consumption, this life that can show each annex system component of extension simultaneously.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic view of a pulley according to the present invention;

FIG. 5 is a schematic view of the construction of a flat one-way roller bearing according to the present invention;

FIG. 6 is an enlarged view of a portion of the flat one-way roller bearing of the present invention;

FIG. 7 is a schematic structural view of a support sheet according to the present invention;

FIG. 8 is a schematic view of the inner shaft of the present invention;

FIG. 9 is a cross-sectional view of the inner shaft of the present invention;

FIG. 10 is a schematic view of the construction of the bushing ring of the present invention;

fig. 11 is a schematic structural view of a ball bearing according to the present invention.

In the figure: 1. a belt pulley; 2. gear teeth; 3. the inner circular surface is assembled in front; 4. a planar one-way roller bearing; 5. a bearing sheet body; 6. a first outer circular surface; 7. a bevel; 8. a roller; 9. a support sheet; 10. a side plane; 11. a keyway; 12. an inner shaft; 13. a convex key; 14. expanding the diameter of the round surface; 15. blocking edges; 16. a shaft bushing; 17. a gasket inner circumference; 18. a gasket side; 19. a gasket outer circumferential surface; 20. then assembling the inner circular surface; 21. a ball bearing; 22. a second outer circular surface; 23. the inner circular surface of the bearing; 24. the outer circle surface of the shaft; 25. a thread; 26. polygonal holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-11, the present invention provides the following technical solutions: an axial drive generator overrunning belt pulley comprises a belt pulley 1, a plane one-way roller bearing 4 and an inner shaft 12, a shaft lining ring 16 and a ball bearing 21, wherein the outer surface of the belt pulley 1 is provided with a gear tooth 2, the inner surface of the belt pulley 1 is provided with a space ring, the inner surface of the belt pulley 1 is provided with a front assembly inner circular surface 3 and a rear assembly inner circular surface 20 corresponding to the front end and the rear end of the space ring respectively, a planar one-way roller bearing 4 comprises a bearing sheet body 5 and a support sheet 9, the outer surface of the bearing sheet body 5 is provided with a first outer circular surface 6, the first outer circular surface 6 is tightly matched with the front assembly inner circular surface 3, the bearing sheet body 5 is provided with an inclined surface 7, a roller 8 matched with the inclined surface 7 is arranged in the bearing sheet body 5, a side plane 10 of the support sheet 9 is attached to the side surface of the space ring, the belt pulley 1, the bearing sheet body 5, the roller 8 and the support sheet 9 are in instantaneous rigid connection in a rolling manner, key grooves 11 are uniformly distributed on the inner surface of the support sheet 9, convex keys 13 in sliding fit with the key grooves 11 are uniformly distributed on an inner shaft 12, one end of the inner shaft 12 is provided with a diameter expanding end, the diameter expanding end is provided with a diameter expanding circular surface 14, the front side and the rear side of the diameter expanding circular surface 14 are provided with flanges 15 along the edges, one end of the inner shaft 12 far away from the diameter expanding end is provided with a bearing connecting end, the bearing connecting end is provided with an outer circular surface 24, a lining ring inner circular surface 17 of the shaft lining ring 16 is in sliding fit with the diameter expanding circular surface 14, two lining ring side surfaces 18 of the shaft lining ring 16 are positioned and sleeved between the two flanges 15 on the diameter expanding end, the lining ring outer circular surface 19 of the lining ring 16 supports a rear assembly inner circular surface 20 on the belt pulley 1, the lining ring outer circular surface 19 is in sliding fit with the rear assembly inner circular surface 20, the ball bearing 21 is provided with a second outer circular surface 22 and a bearing inner circular surface 23, the second outer circular surface 22 is in tight fit with the front assembly inner circular surface 3 on the belt pulley 1, and the bearing inner circular surface 23 is in tight fit with the shaft outer circular surface 24 on the inner shaft 12.

Specifically, the gear teeth 2 are wedge-shaped, and the gear teeth 2 are matched with the V-ribbed belt.

In this embodiment, the pulley 1 has a plurality of gear teeth 2, and the gear teeth 2 have a wedge shape and are engaged with a v-ribbed belt. When the poly-wedge belt runs, the poly-wedge belt rubs with the wedge surface to drive the belt pulley 1 to run.

Specifically, bushing collar 16 is made of gray cast iron, nylon, or an alloy such as tin, lead, copper, antimony, or the like.

In the embodiment, the shaft lining ring 16 made of gray cast iron is commonly used under the conditions of low speed, light load and no impact load, and comprises HT15-33 and HT20-40; the common nylon 6, nylon 66 and nylon 1010 are adopted, and the bushing ring 16 made of the nylon has the advantages of good running performance, no damage to a shaft neck by a worn scrap soft surface, good corrosion resistance and the like; the bearing alloy (babbitt metal) is an alloy of tin, lead, copper, antimony and the like, has good wear resistance but low strength, cannot be separately manufactured into a bearing bush and is usually cast on a bearing bush substrate of bronze, cast iron, steel and the like.

Specifically, the inner shaft 12 is hollow, a screw 25 connected to the engine shaft is provided on the inner wall of the inner shaft 12, and a polygonal hole 26 is provided on the inner wall surface of the inner shaft 12 corresponding to the diameter-expanding circular surface 14.

In this embodiment, the inner shaft 12 is connected to the generator shaft through its inner hole internal thread 25 to drive the rotor to rotate, and the inner shaft 12 is fitted to a special installation wrench through its inner hole wall polygonal hole 26 to install the pulley assembly on the generator shaft.

The working principle and the using process of the invention are as follows: during assembly, the inner shaft 12 is connected with a generator shaft through an inner hole internal thread 25 of the inner shaft to drive the rotor to rotate, and the inner shaft 12 is matched with a special installation wrench through a polygonal hole 26 on the inner hole wall of the inner shaft to install the belt wheel assembly on the generator shaft; when the belt pulley 1 rotates, the bearing sheet body 5 is driven to rotate, when the bearing sheet body 5 rotates clockwise, the inclined plane 7 pushes the roller 8 to rotate, and the roller 8 moves leftwards, so that the roller 8 presses the supporting sheet 9, the side plane 10 of the supporting sheet 9 is attached to the side face of the inner ring of the belt pulley 1, and the belt pulley 1, the bearing sheet body 5, the roller 8 and the supporting sheet 9 form rigid connection and rotate together with the rotation of the belt pulley 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an axial drive generator surpasss belt pulley, includes belt pulley (1), one-way roller bearing in plane (4), interior axle (12), bushing ring (16) and ball bearing (21), its characterized in that: the outer surface of the belt pulley (1) is provided with gear teeth (2), the inner surface of the belt pulley (1) is provided with a space ring, the inner surface of the belt pulley (1) is provided with a front assembly inner circular surface (3) and a rear assembly inner circular surface (20) corresponding to the front end and the rear end of the space ring respectively, the planar one-way roller bearing (4) comprises a bearing sheet body (5) and a support sheet (9), the outer surface of the bearing sheet body (5) is provided with a first outer circular surface (6), the first outer circular surface (6) is tightly matched with the front assembly inner circular surface (3), the bearing sheet body (5) is provided with an inclined surface (7), a roller (8) matched with the inclined surface (7) is arranged in the bearing sheet body (5), a side plane (10) of the support sheet (9) is attached to the side surface of the space ring, the belt pulley (1), the bearing sheet body (5), the roller (8) and the support sheet (9) are rigidly connected in a rolling mode, the bearing sheet body (5) is driven to rotate when the belt pulley (1) rotates, when the bearing sheet body (5) pushes the shaft to rotate clockwise, the inclined surface (8) and the roller (8) moves to press the roller (9) and the support sheet (9) and the roller (9) and the side surface of the roller (9) and presses the roller (9) and the support sheet (9) moves leftwards, the belt pulley (1), the bearing sheet body (5), the roller (8) and the support sheet (9) form rigid connection, key grooves (11) are uniformly distributed on the inner surface of the supporting sheet (9), convex keys (13) which are in sliding fit with the key grooves (11) are uniformly distributed on the inner shaft (12), one end of the inner shaft (12) is provided with an expanding end, an expanding round surface (14) is arranged on the expanding end, flanges (15) are arranged on the front and rear sides of the diameter-expanding circular surface (14), one end of the inner shaft (12) far away from the diameter expansion end is provided with a bearing connecting end, the bearing connecting end is provided with an outer shaft circular surface (24), the inner ring lining circle surface (17) of the shaft lining ring (16) is in sliding fit with the diameter-expanding circular surface (14), two lining ring side surfaces (18) of the shaft lining ring (16) are positioned and sleeved between two flanges (15) on the diameter expanding end, the lining ring outer circular surface (19) of the shaft lining ring (16) supports a rear assembling inner circular surface (20) on the belt pulley (1), the outer circle surface (19) of the lining ring is in sliding fit with the inner circle surface (20) of the rear assembly, the ball bearing (21) is provided with a second outer circular surface (22) and a bearing inner circular surface (23), the second outer circular surface (22) is tightly matched with the front assembly inner circular surface (3) on the belt pulley (1), the bearing inner circular surface (23) is tightly matched with a shaft outer circular surface (24) on the inner shaft (12).

2. The axial drive generator overrunning pulley of claim 1 further comprising: the gear teeth (2) are wedge-shaped teeth, and the gear teeth (2) are matched with the V-ribbed belt.

3. The axial drive generator overrunning pulley of claim 1 further comprising: the shaft lining ring (16) is made of gray cast iron or nylon.

4. The axial drive generator overrunning pulley of claim 1 further comprising: the inner shaft (12) is arranged in a hollow mode, threads (25) connected with an engine shaft are arranged on the inner wall of the inner shaft (12), and polygonal holes (26) are formed in the inner wall surface, corresponding to the diameter-expanding circular surface (14), of the inner shaft (12).