CN216045311U

CN216045311U - Spinning belt pulley for heavy harvester

Info

Publication number: CN216045311U
Application number: CN202121666014.9U
Authority: CN
Inventors: 潘兆星
Original assignee: Dongxing Auto Parts Co
Current assignee: Dongxing Auto Parts Co
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-03-15
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a spinning belt pulley for a heavy-duty harvester, which comprises a wheel rim and a spoke, wherein the wheel rim and the spoke are arranged in a central symmetry manner, the wheel rim and the spoke are of a spinning integrated structure, the outer circumference of the spoke is integrally connected with the wheel rim, one end of the spoke, which is connected with the wheel rim, is vertically connected with the inner wall of one half of the wheel rim, the inner side of the spoke is connected with a bearing chamber, and a double-row roller bearing is pressed in the bearing chamber. The utility model has the characteristics of high strength, light structure, high assembly efficiency, long service life of products and the like, and meanwhile, the existing casting tensioning wheel is changed into the spinning high-strength tensioning wheel, so that better economic benefit can be generated, and the utility model is mainly matched with European and American large-scale harvester manufacturers, thereby having very wide application prospect.

Description

Spinning belt pulley for heavy harvester

Technical Field

The utility model belongs to the technical field of transmission devices, and particularly relates to a spinning belt pulley for a heavy-duty harvester.

Background

The belt pulley belongs to a disc hub part, the general size is relatively large, the manufacturing process generally takes casting and forging as main parts, the general size is large, the casting method is used for designing, the material generally adopts cast iron and is machined, the belt pulley is heavy in weight and high in material consumption, riveting is generally carried out after the belt pulley is used for agricultural machinery, the belt pulley is generally applied to a tension pulley with low stress, meanwhile, riveting is carried out after the belt pulley is stamped, residual stress and deformation can occur to the tension pulley, the strength of the tension pulley is reduced, fatigue fracture is easy to occur during use, the service life is short, and the like.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model relates to a spinning belt pulley for a heavy-duty harvester, which meets the functional requirements of tensioning wheels of agricultural machines, is mainly matched with European and American large-scale harvester manufacturers, and has a very wide application prospect.

The utility model is mainly realized by the following technical scheme:

the spinning belt pulley for the heavy-duty harvester comprises a wheel rim and a spoke which are arranged in a central symmetry mode, wherein the wheel rim and the spoke are of a spinning integrated structure, and the spinning belt pulley is characterized in that the outer circumference of the spoke is connected with the wheel rim in an integrated mode, one end, connected with the wheel rim, of the spoke is vertically connected to the inner wall of the half position of the wheel rim, the inner side of the spoke is connected with a bearing chamber, and a double-row roller bearing is pressed in the bearing chamber.

Furthermore, the rim is a U-shaped groove rim, the U-shaped groove rim is composed of a horizontal portion and flange portions arranged on two sides of the horizontal portion, and the length of the horizontal portion is 90 mm.

Furthermore, the bearing chamber comprises a bearing seat for mounting the roller bearing and a positioning mandrel for positioning the roller bearing, the bearing seat and two sides of the spoke are welded in a friction welding mode, and the roller bearing is located between the bearing seat and the positioning mandrel.

Furthermore, the rim, the spoke, the bearing seat, the roller bearing and the positioning core shaft are all coaxially arranged.

Further, a spoke center hole is formed in the axial direction of the positioning core shaft.

Further, the aperture of the spoke central hole is 20.4 (+ -0.015) mm.

Further, the outer diameter of the belt pulley is 223.2 +/-1 mm, and the diameter of the groove between two turns is 203.2 +/-1 mm.

Further, the groove edge angle A of the U-shaped groove rim is 5 degrees +/-3 degrees.

Compared with the prior art, the utility model has the following beneficial effects:

the high-strength tensioning wheel has the advantages of being high in strength, light in structure, high in assembly efficiency, long in service life of products and the like, meanwhile, the existing casting tensioning wheel is changed into the high-strength spinning wheel, good economic benefits can be generated, and the high-strength tensioning wheel is mainly matched with European and American large-scale harvester manufacturers, so that the high-strength tensioning wheel has a very wide application prospect.

Drawings

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

FIG. 2 is a top view structural diagram;

in the figure, 1-rim, 2-spoke, 3-roller bearing, 4-bearing seat, 5-positioning mandrel, 6-spoke center hole and 7-groove edge angle A.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings in order to better understand the technical solution.

As shown in figures 1-2, the spinning belt pulley for the heavy-duty harvester can meet the functional requirements of an agricultural machine tensioning wheel, is made of 8mm steel plates, is spun into a large-width flat-bottom groove, and achieves the purpose of high strength. The concrete structure is that, including wheel rim 1 and spoke 2 that centrosymmetric set up, wheel rim 1 and spoke 2 are spinning integral type structure, and the outer circumference of spoke 2 is connected with wheel rim 1 integral type, and spoke 2 is connected on the inner wall of 1 half department of wheel rim with one end that wheel rim 1 links to each other perpendicularly, and the bearing room is connected to 2 inboard sides of spoke, the indoor pressure equipment biserial roller bearing 3 of bearing.

With continued reference to fig. 1, the rim 1 is a U-shaped groove rim, which is composed of a horizontal portion 101 and flange portions 102 disposed at both sides of the horizontal portion 101, wherein the specific length of the horizontal portion 101 is 90 mm; the specific structure of the bearing chamber comprises a bearing seat 4 for mounting the roller bearing 3 and a positioning mandrel 5 for positioning the roller bearing 3, the bearing seat 4 and the two sides of the spoke 2 are arranged in a friction welding mode, welding deformation is small, and strength is high. The roller bearing 3 is assembled and then is riveted with the reverse side through the bearing seat 4 to wrap the bearing end face, the axial direction of the bearing is guaranteed to be unmovable, the service life of the bearing is prolonged, the roller bearing 3 is located between the bearing seat 4 and the positioning mandrel 5, the rim 1, the spoke 2, the bearing seat 4, the roller bearing 3 and the positioning mandrel 5 are coaxially arranged, a spoke center hole 6 is arranged in the axial direction of the positioning mandrel 5, the spoke center hole 6 can be installed on a main shaft, and the precision requirement is high.

The main technical indexes of the utility model are as follows: the edge height is as follows: 2-24.64 +/-1 mm, the groove edge angle A7 of a U-shaped groove rim is 5 +/-3 degrees, the outer diameter of the belt pulley is 223.2 +/-1 mm, the diameter of a groove between two wheel rims 1 is 203.2 +/-1 mm, the aperture of a bearing chamber is 90 (-0.01/-0.04) mm, the aperture of a spoke center hole 6 is 20.4 (+/-0.015) mm, and the excircle of the groove jumps: less than or equal to 0.5A.

The product of the utility model changes the original iron casting into the spinning part by optimally designing the structure, and adopts the spinning structure, thereby ensuring the high surface finish of the U-shaped groove of the belt pulley and the compact surface texture and good wear resistance, and being beneficial to the service life of the belt pulley. The manufacturing process adopts stamping and spinning, the production efficiency is high, and the production cost is reduced; the belt pulley has the advantages of being material-saving, low in cost, light in structure, high in assembly efficiency, long in service life of products and the like, meanwhile, the belt pulley is high in strength and capable of bearing severe working environments through the large-width flat belt tensioning wheel, and the products are widely applied to agricultural machinery transmission belt pulleys.

Claims

1. The utility model provides a spinning belt pulley for on heavy harvester, includes wheel rim (1) and spoke (2) that centrosymmetric set up, wheel rim (1) and spoke (2) formula structure as a spinning integral type, its characterized in that the circumference is connected with wheel rim (1) integral type outside spoke (2), and spoke (2) and the one end that rim (1) links to each other connect perpendicularly on the inner wall of wheel rim (1) half department, bearing room is connected to spoke (2) inboard, the indoor pressure equipment double-row roller bearing (3) of bearing.

2. A spinning pulley for heavy harvesters according to claim 1, characterised in that said rim (1) is a U-shaped grooved rim consisting of a horizontal portion (101) and stop portions (102) arranged on both sides of the horizontal portion (101), said horizontal portion (101) having a length of 90 mm.

3. The spinning pulley for heavy-duty harvester according to claim 1, characterized in that the bearing chamber comprises a bearing seat (4) for mounting the roller bearing (3) and a positioning mandrel (5) for positioning the roller bearing (3), the bearing seat (4) is welded with both sides of the spoke (2), and the roller bearing (3) is located between the bearing seat (4) and the positioning mandrel (5).

4. The spinning pulley for a heavy-duty harvester according to claim 1, characterized in that the rim (1), the spokes (2), the bearing seats (4), the roller bearings (3) and the positioning mandrel (5) are all coaxially arranged.

5. A spinning pulley for heavy harvesters as claimed in claim 3, characterized in that the positioning mandrel (5) is provided with a spoke central hole (6) in the axial direction.

6. A spinning pulley for heavy harvesters as claimed in claim 5, characterized in that the diameter of the central spoke hole (6) is 20.4 ± 0.015 mm.

7. A spinning pulley for heavy harvesters as claimed in claim 1, characterised in that the external diameter of the pulley is 223.2 ± 1mm and the diameter of the groove between the two rims (1) is 203.2 ± 1 mm.

8. The spinning pulley for the heavy-duty harvester as recited in claim 2, characterized in that the groove edge angle a (7) of the U-shaped groove rim is 5 ± 3 °.