CN204620955U - For the support wheel structure of cold grinding - Google Patents

Abstract

The utility model discloses a supporting wheel structure for a cold mill, comprising two supporting wheels (1) and two supporting seats (2), each supporting wheel (1) is installed on a supporting seat (2) Above, each support wheel (1) is provided with a guide roller to prevent direct friction between the workpiece (3) and the support wheel (1), and each support seat (2) is provided with a groove (4) inside, each The guide rollers are all tightly fitted in a groove (4). The structure of the support wheel can avoid the direct friction between the workpiece and the support wheel to cause abrasion.

Description

Support wheel structure for cold mill

technical field

The utility model relates to a cold rolling machine for processing bearing rings, in particular to a supporting wheel structure for the cold rolling machine.

Background technique

The cold rolling machine is a kind of equipment for processing bearing rings. During processing, the main motor drives the grinding wheel to rotate, and at the same time drives the supporting wheel part installed on the main slider to move to the left, pushing the mandrel to press the workpiece for rolling, so that the wall thickness of the workpiece is reduced and the diameter is enlarged. The mold pass formed by the roller and the mandrel determines the cross-sectional shape of the workpiece. The cold rolling machine with the above structure has the following disadvantages in the actual processing process: the workpiece will directly rub against the support wheel during processing, which will cause wear between the workpiece and the support wheel, which will not only reduce the service life of the support wheel and increase the processing cost , and will cause damage to the workpiece, making the yield of the workpiece lower. Therefore, based on the above reasons, there is an urgent need for a support wheel structure for cold rolling mills, which can avoid direct friction between the workpiece and the support wheel and wear, so as to solve the above problems.

Utility model content

The technical problem to be solved by the utility model is to provide a support wheel structure for a cold rolling mill, which can avoid wear and tear caused by direct friction between the workpiece and the support wheel.

The technical solution of the utility model is to provide a support wheel structure for cold mills, including two support wheels and two support seats, each support wheel is installed on a support seat, and each support wheel A guide roller is provided to prevent direct friction between the workpiece and the support wheel, and a groove is provided on the inner side of each support seat, and each guide roller is tightly fitted in the groove.

The guide roller includes a rotating shaft, a plurality of supports and a plurality of needle bearings; each needle bearing is provided with a support on the left and right sides; the plurality of supports and the plurality of needle bearings are all set connected to the shaft.

After adopting the above structure, the utility model has the following advantages compared with the prior art:

The supporting wheel structure of the utility model is equipped with a guide roller on the inner surface of the two supporting wheels to prevent direct friction between the workpiece and the supporting wheel, so that when the workpiece is deflected and deformed, the first contact is the guide roller, and the workpiece drives the guide roller to stay in place Rotate, in a state of pure rolling friction. The workpiece is always limited within the range clamped by the two guide rollers, and cannot come into contact with the support wheel, thus ensuring the smooth rolling and expanding of asymmetrical parts. This will not only increase the service life of the support wheel and reduce the processing cost, but also will not cause damage to the workpiece, resulting in a higher yield of the workpiece.

Description of drawings

Fig. 1 is the structure schematic diagram (a support wheel and a support base) of the utility model for the support wheel structure of the cold mill.

Fig. 2 is a schematic view of the support wheel structure during processing (a support wheel and a support seat).

Fig. 3 is a partial sectional view of the support wheel structure during processing.

Shown in the figure 1, support wheel, 2, support seat, 3, workpiece, 4, groove, 5, rotating shaft, 6, bearing, 7, needle roller bearing, 8, main motor, 9, grinding wheel, 10, Main slider, 11, core stick.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model is a kind of support wheel structure for cold mill, which comprises two support wheels 1 and two support seats 2, and each support wheel 1 is installed on a support On the seat 2, each support wheel 1 is provided with a guide roller to prevent direct friction between the workpiece 3 and the support wheel 1, and the inner side of each support seat 2 is provided with a groove 4, and each guide roller is tightly fitted in a concave groove. in slot 4.

The guide roller includes a rotating shaft 5, a plurality of bearings 6 and a plurality of needle bearings 7; each needle bearing 7 is provided with a bearing 6 on the left and right sides; the plurality of bearings 6, the plurality of Each needle bearing 7 is sleeved on the rotating shaft 5 . In this embodiment, there are four needle bearings 7 and five supports 6 .

During processing, the main motor 8 drives the grinding wheel 9 to rotate, and at the same time drives the support wheel structure installed on the main slider 10 to move to the left, pushing the mandrel 11 to press the workpiece 3 for rolling, so that the wall thickness of the workpiece 3 is reduced , The diameter increases.

The above only illustrates the best embodiments of the present utility model, but should not be construed as a limitation on the claims. The utility model is not limited to the above embodiments, and its specific structure allows changes. All the various changes made within the scope of protection of the independent claims of the utility model are within the scope of protection of the utility model.

Claims (2)

1. the support wheel structure for cold grinding, comprise two support wheels (1) and two supporting seats (2), each support wheel (1) is installed on a supporting seat (2), it is characterized in that: each support wheel (1) is equipped with the guide roller that prevents workpiece (3) and support wheel (1) direct friction, the inner side of each supporting seat (2) is equipped with a groove (4), and each guide roller is all a tight fit in a groove (4).

2. according to claim 1 for the support wheel structure of cold grinding, it is characterized in that: described guide roller comprises a rotating shaft (5), multiple bearing (6) and multiple needle bearing (7); The left and right sides of each needle bearing (7) is equipped with a bearing (6); Described multiple bearings (6), multiple needle bearing (7) are all socketed in rotating shaft (5).