CN210623514U

CN210623514U - Compound big V many wedges system belt pulley

Info

Publication number: CN210623514U
Application number: CN201921628748.0U
Authority: CN
Inventors: 贾锋; 鄢荣清; 潘从勇; 周欧亚
Original assignee: Dongfeng Xiangyang Spinning Technology Co Ltd
Current assignee: Dongfeng Xiangyang Spinning Technology Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-26
Anticipated expiration: 2029-09-27

Abstract

The utility model provides a compound big V polywedge board system belt pulley, includes the wheel body of integrated into one piece structure, there is a centering hole wheel body terminal surface middle part, and it has a plurality of mounting holes to distribute at centering hole peripheral wheel body terminal surface circumference array, and the wheel body side is including an at least V type groove that is located upper portion, the PK type groove that is located the lower part, the diameter in PK type groove is greater than V type groove diameter, and V type groove top edge is connected with the wheel body terminal surface through the last cambered surface to the indent, and V type groove lower limb is connected with PK type groove through the lower cambered surface of warp direction indent, goes up between cambered surface lower part and the V type groove upper portion, is formed with the folding portion. The utility model discloses not only light in weight, processing cost are low, but also transferable power is big, and application scope is wide.

Description

Compound big V many wedges system belt pulley

Technical Field

The utility model relates to an automobile engine inner panel system belt pulley.

Background

At present, plate-made spinning belt pulleys of an automobile engine are mainly driven by a group of groove shapes, most belt pulleys which are driven by two groups of groove shapes in different winding directions are realized by adopting the traditional casting and machining process or by using the superposition assembly of two plate-made spinning belt pulleys, but the cast belt pulley has the defects of heavy weight, large rotational inertia and high batch production cost and is an important reason for preventing the automobile from realizing light weight; and the coaxiality between two stages is difficult to guarantee in the mode of overlapping and assembling the two plate spinning belt pulleys, the number of required tool dies is large, and the cost is high. Chinese patent 'spinning process for manufacturing step spinning belt pulleys with different diameters and special tool thereof' (publication number: CN108213162A, publication date: 2018.06.29), solves the problems of non-concentricity of upper and lower tooth grooves, instable installation size and the like of the step spinning belt pulleys with different diameters (shown in figure 3), but the step spinning belt pulleys with different diameters have narrow transmission power range, thereby causing small applicable engine displacement range. The Chinese patent 'spinning process of a two-stage plate-made belt pulley and a special tool for the process' (publication number: CN108213161A, publication date: 2018.06.29) solves the problems that a groove shape of the two-stage plate-made spinning belt pulley (shown in figure 4) is not formed, an interlayer is arranged at a middle convex part, and the like, and has a large power transmission range.

Disclosure of Invention

In order to overcome the above-mentioned not enough of prior art, the utility model provides a compound big V many wedges system belt pulley reduces board system belt pulley weight, improves transferable power range, to spinning equipment precision and tonnage requirement low.

The technical scheme of the utility model: including the wheel body of integrated into one piece structure, there is a centering hole wheel body terminal surface middle part, and it has a plurality of mounting holes to distribute at centering hole peripheral wheel body terminal surface circumference array, and the wheel body side is including an at least V type groove that is located upper portion, the PK type groove that is located the lower part, the diameter in PK type groove is greater than V type groove diameter, and V type groove top edge is connected with the wheel body terminal surface through the last cambered surface to the indent, and lower cambered surface and PK type groove connection of V type groove bottom edge warp direction indent go up between cambered surface lower part and the V type groove upper portion, be formed with folding portion down between cambered surface lower part and the.

The wheel body is made of a thin steel plate.

The thickness of the steel plate is 2-3.5 mm.

The difference between the outer diameter D of the PK type groove and the outer diameter D of the V type groove is as follows: D-D is more than or equal to 20 mm.

The number of the PK type grooves in the PK type grooves is 3-10 PK.

The utility model provides a transmission range that prior art exists is narrow, and the process time is long, the degree of difficulty is big, requires high scheduling problem to equipment precision and tonnage. The utility model has the advantages that: 1. compared with the overlapping assembly of two plate belt pulleys, the integrated composite large V multi-wedge plate belt pulley has the advantages of fewer tooling dies, low cost and the like, the weight is generally only two plate spinning belt pulleys 2/3, and the integrated composite large V multi-wedge plate belt pulley has a better weight reduction effect; 2. the application range is wide, and the shape of V type groove can cover JBT7700.1-2016 metal spinning pulley 1 st part: the groove type of all V-shaped grooves in the plate spinning V-shaped belt wheel can cover the 2 nd part of the JBT7700.2-2016 metal spinning belt wheel in the number of PK groove types: the plate is spun into two-wedge three-groove (3 PK for short) to nine-wedge ten-groove (10 PK for short) listed in the table 2 in the multi-wedge belt wheel, the power transmission range is wide, and the plate can be matched with engines with various discharge capacities; 3. because V type groove and PK groove can separately carry out the spinning process, consequently to equipment precision and tonnage requirement lower, the processing degree of difficulty is little simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a view showing the usage state of the present invention;

FIG. 3 is one of the schematic prior art structures;

fig. 4 is a second schematic diagram of a prior art structure.

Detailed Description

In fig. 1, the present invention is made of a thin steel plate having a thickness of 3 mm. The V-shaped groove 1 and the PK-shaped groove 2 are integrated. The difference between the outer diameter D of the PK type groove 2 and the outer diameter D of the V type groove 1 is as follows: D-D =20 mm. The number of PK type grooves is in the range of 8 PK. The side surface of the wheel body comprises a V-shaped groove 1 positioned on the upper part and a PK-shaped groove 2 positioned on the lower part, the upper edge of the V-shaped groove 1 is connected with the end surface of the wheel body through an inward-concave upper cambered surface 3, and the lower edge of the V-shaped groove 1 is connected with the PK-shaped groove 2 through an inward-concave lower cambered surface 4.

In fig. 2, a V-belt 5 is installed in a V-groove 1, and a PK belt 6 is installed in a PK-groove 2.

Claims

1. The utility model provides a compound big V polywedge board system belt pulley which characterized in that: including the wheel body of integrated into one piece structure, there is a centering hole wheel body terminal surface middle part, and it has a plurality of mounting holes to distribute at centering hole peripheral wheel body terminal surface circumference array, and the wheel body side is including an at least V type groove (1) that is located upper portion, PK type groove (2) that are located the lower part, the diameter in PK type groove (2) is greater than V type groove diameter, and V type groove (1) top edge is connected with wheel body terminal surface through last cambered surface (3) to the indent, and V type groove (1) lower limb is connected with PK type groove (2) through lower cambered surface (4) to the indent, goes up between cambered surface (3) lower part and V type groove (1) upper portion, is formed with folding portion between cambered surface (4) lower part and PK type groove (2).

2. The composite large V multi-ribbed plate pulley of claim 1 wherein: the wheel body is made of a thin steel plate.

3. The composite large V multiple ribbed plate pulley of claim 2 wherein: the thickness of the steel plate is 2-3.5 mm.

4. The composite large V multi-ribbed plate pulley of claim 1 wherein: the difference between the outer diameter D of the PK-shaped groove (2) and the outer diameter D of the V-shaped groove (1) is as follows: D-D is more than or equal to 20 mm.

5. The composite large V multi-ribbed plate pulley of claim 1 wherein: the number of the PK type grooves in the PK type grooves (2) is 3-10 PK.