CN214999248U

CN214999248U - High-balance multi-wedge groove crankshaft pulley

Info

Publication number: CN214999248U
Application number: CN202121530878.8U
Authority: CN
Inventors: 董方长; 王健敏; 陈永辉
Original assignee: Zhejiang Qibo Machinery Co ltd
Current assignee: Zhejiang Qibo Machinery Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-03
Anticipated expiration: 2031-07-06

Abstract

The utility model provides a high equilibrium polywedge groove bent axle belt pulley belongs to mechanical technical field. The crankshaft pulley wheel solves the problems that the positioning positions of the spoke and the shaft sleeve in the existing crankshaft pulley are unstable, the forming effect after welding is influenced, and the rejection rate is high. This high equilibrium polywedge groove crank pulley, including the outer lane, spoke and axle sleeve, the outer lane comprises left edge and right edge, constitute a plurality of polywedge groove between left edge and the right edge, radial outside protruding has spacing bulge loop on the periphery wall of axle sleeve, the spacing annular that supplies the installation of spacing bulge loop has on the spoke, the tip has the location bulge loop of radial outside extension in the spacing bulge loop, the location bulge loop include with the transition portion that links to each other of spacing bulge loop and with transition portion integrated into one piece's arc portion, the outer parcel of arc portion has the round to have elastic wrapping layer. The utility model discloses an efficient location structure has that the bent axle belt pulley structure after the welding is more balanced, stable and efficient advantage.

Description

High-balance multi-wedge groove crankshaft pulley

Technical Field

The utility model belongs to the technical field of machinery, a belt pulley is related to, in particular to high equilibrium polywedge groove bent axle pulley.

Background

The crankshaft pulley is an important component of an engine air distribution system, and the accuracy of air inlet and exhaust time is ensured by connecting the crankshaft pulley and matching with a certain transmission ratio. The spoke and the shaft sleeve in the crankshaft pulley are usually connected by welding, but the spoke and the shaft sleeve in the crankshaft pulley lack a positioning structure before welding, so that the positions of the spoke and the shaft sleeve are unstable in the welding process, the forming effect after welding is influenced, and the rejection rate is high.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, a high equilibrium polywedge groove bent pulley that has location structure, messenger's spoke and axle sleeve shaping are more stable is provided.

The purpose of the utility model can be realized by the following technical proposal: a high-balance multi-wedge groove crankshaft pulley comprises an outer ring, a spoke and a shaft sleeve, wherein the outer ring consists of a left edge and a right edge, a plurality of multi-wedge grooves are formed between the left edge and the right edge, the shaft sleeve is arranged in the middle of the spoke, the center of the shaft sleeve is provided with a mounting hole for the matching installation of the crankshaft, it is characterized in that a limit convex ring is protruded radially outwards on the peripheral wall of the shaft sleeve, a limit ring groove for installing the limit convex ring is arranged on the spoke, the inner end part of the limit convex ring is provided with a positioning convex ring which extends outwards in the radial direction, the positioning convex ring comprises a transition part connected with the limit convex ring and an arc-shaped part which is integrally formed with the transition part, the outer parcel of arc portion have elastic elasticity parcel layer, the internal diameter of transition portion is by interior toward expanding outward gradually, transition portion and spacing bulge loop between be provided with the fillet.

In the above mentioned high-balance multi-wedge groove crankshaft pulley, the spoke has a positioning groove for positioning and embedding the positioning convex ring.

In the above-mentioned high-balance polywedge groove crankshaft pulley, the bushing and the spoke are connected by welding.

In the high-balance multi-wedge groove crankshaft pulley, the groove walls on the two sides of the multi-wedge groove are respectively provided with a plurality of anti-slip grooves distributed at intervals, the groove walls of the multi-wedge groove are formed into a plurality of anti-slip arched parts which are arched relatively through the anti-slip grooves, and the anti-slip grooves and the corresponding anti-slip arched parts are transited through anti-slip arc angles.

In the above-mentioned high-balance multi-wedge groove crankshaft pulley, the spoke is provided with a plurality of lightening holes along the circumferential direction.

Compared with the prior art, the high-balance multi-wedge groove crankshaft pulley has the advantage that the welding effect of the shaft sleeve and the spoke is better, and the welded crankshaft pulley structure is more balanced, stable and efficient.

Drawings

FIG. 1 is a schematic view of the present high balance multiple wedge groove pulley.

FIG. 2 is a schematic cross-sectional view of the high balance poly-v-groove pulley.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2.

Fig. 4 is an enlarged schematic view of fig. 2 at B.

In the figure, 1, a spoke; 2. a shaft sleeve; 3. a left edge; 4. a right edge; 5. a poly-wedge groove; 6. a limit convex ring; 7. positioning the convex ring; 8. a transition section; 9. an arc-shaped portion; 10. an elastic wrapping layer; 11. an anti-slip groove; 12. an anti-slip arching portion; 13. an anti-slip arc angle; 14. and (7) lightening holes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the high-balance multi-wedge groove crankshaft pulley comprises an outer ring, a spoke 1 and a shaft sleeve 2, wherein the outer ring is composed of a left edge 3 and a right edge 4, a plurality of multi-wedge grooves 5 are formed between the left edge 3 and the right edge 4, the shaft sleeve 2 is installed in the middle of the spoke 1, a mounting hole for the crankshaft to be installed in a matched manner is formed in the center of the shaft sleeve 2, a limiting convex ring 6 is protruded radially outwards on the outer peripheral wall of the shaft sleeve 2, a limiting annular groove for the limiting convex ring 6 to be installed is formed in the spoke 1, a positioning convex ring 7 extending radially outwards is arranged at the inner end of the limiting convex ring 6, the positioning convex ring 7 comprises a transition part 8 connected with the limiting convex ring 6 and an arc part 9 integrally formed with the transition part 8, a circle of elastic wrapping layer 10 is wrapped outside the arc part 9, the inner diameter of the transition part 8 gradually expands from inside to outside to improve the embedding strength of the transition part 8 into a positioning groove, be provided with the fillet between transition portion 8 and the spacing bulge loop 6, have the constant head tank that supplies the installation of the 7 location embedding of location bulge loop on the spoke 1, axle sleeve 2 links to each other through the welding with spoke 1, through the location installation of spacing bulge loop 6 and location bulge loop 7, comes to install 2 efficient stable installations in spacing annular with axle sleeve 2, with axle sleeve 2 radial spacing, later weld axle sleeve 2 and spoke 1 together again.

Preferably, the spoke 1 is provided with a plurality of lightening holes 14 along the circumferential direction.

Equally divide on the both sides cell wall of polywedge groove 5 and do not set up a plurality of interval distribution's antiskid groove 11, form a plurality of anti-skidding hunch portion 12 of relative hunch through this antiskid groove 11 with the cell wall of polywedge groove 5, pass through anti-skidding arc angle 13 transition between antiskid groove 11 and the corresponding anti-skidding hunch portion 12, the belt inner wall of being connected with belt pulley transmission contacts with the outer wall of anti-skidding hunch portion 12, avoid the belt transmission in-process to appear skidding, improve the transmission equilibrium nature of belt.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a high equilibrium polywedge groove crank pulley, includes outer lane, spoke (1) and axle sleeve (2), the outer lane constitute by left edge (3) and right edge (4), constitute a plurality of polywedge groove (5) between left edge (3) and the right edge (4), axle sleeve (2) install in spoke (1) middle part, the center department of axle sleeve (2) have the mounting hole that supplies the bent axle cooperation to install, its characterized in that, radial outside protrusion has spacing bulge loop (6) on the periphery wall of axle sleeve (2), spoke (1) on have the spacing annular that supplies spacing bulge loop (6) to install, the interior tip of spacing bulge loop (6) has radial outside extension's location bulge loop (7), location bulge loop (7) include transition portion (8) that link to each other with spacing bulge loop (6) and arc portion (9) with transition portion (8) integrated into one piece, arc portion (9) outer parcel have round elastic coating layer (10), the internal diameter of transition portion (8) is by interior toward outer gradual expansion, transition portion (8) and spacing bulge loop (6) between be provided with the fillet.

2. A high balance multiple wedge groove crankshaft pulley according to claim 1, characterized in that the spoke (1) has a positioning groove for positioning and embedding the positioning convex ring (7).

3. A high balance v-ribbed pulley according to claim 1, characterized in that said sleeve (2) is connected to the web (1) by welding.

4. The high-balance multi-wedge groove crankshaft pulley according to claim 1, wherein a plurality of anti-slip grooves (11) are respectively formed on both side groove walls of the multi-wedge groove (5), the anti-slip grooves (11) form a plurality of anti-slip arched portions (12) which are relatively arched on the groove walls of the multi-wedge groove (5), and the anti-slip grooves (11) and the corresponding anti-slip arched portions (12) are transited through anti-slip arc angles (13).

5. The v-ribbed pulley with high balance as claimed in claim 1, wherein said spokes (1) have a plurality of lightening holes (14) along the circumferential direction thereof.