CN202484248U

CN202484248U - Double-web pulley

Info

Publication number: CN202484248U
Application number: CN 201220093539
Authority: CN
Inventors: 杨晓华
Original assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Current assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Priority date: 2012-03-13
Filing date: 2012-03-13
Publication date: 2012-10-10
Anticipated expiration: 2022-03-13

Abstract

The utility model provides a double-web pulley which comprises a rim with a rope groove, two circular webs, and a hub. The two circular webs are fixedly connected to two sides of the rim respectively. The hub is embedded into an inner ring of the webs and is fixedly connected with the webs. Overall rigidity of the pulley can be enhanced, defects of the rope groove such as shrinkage are eliminated, hardness can be increased, and cost can be reduced.

Description

Two disc pulleys

Technical field

The utility model relates to pulley, relates in particular to a kind of pair of disc pulley.

Background technique

In the existing technology, the formation method of pulley comprises casting, forges, and welding rollingly adds welding.Adopt casting technique making pulley energy consumption big, seriously polluted, the key position grooving is difficult to avoid existing metal contracts class defective; It is low to forge the pulley stock utilization, and blank is made and the machining cost height, and overall fabricating cost is high; Welded pulley and the rolling welded pulley that adds adopt the iron and steel trade mark than low carbon content from being convenient to weld with rolling arts demand, to such an extent as to grooving is difficult to obtain high surface hardness through quenching, have the shortcoming that wears no resistance.

The model utility content

The technical problem that the utility model will solve provides a kind of pair of disc pulley, can strengthen the integral rigidity of pulley, eliminates grooving and shrinks a type defective, and help improving hardness, reduce cost.

For solving the problems of the technologies described above, the utility model provides a kind of pair of disc pulley, comprising:

Be provided with the wheel rim of grooving;

The disc of two ring-types is fixedly connected on the both sides of said wheel rim respectively;

Wheel hub embeds in the interior ring of said disc and with said disc and is fixedly connected.

Alternatively, be welding between said disc and the wheel rim.

Alternatively, be welding between said disc and the wheel hub.

Alternatively, the material of said wheel rim is that the trade mark is the ferrous materials of 35CrMo.

Alternatively, the material of said disc is that the trade mark is the ferrous materials of Q345-B.

Alternatively, the material of said wheel hub is that the trade mark is 35 ferrous materials.

Alternatively, have attachment hole on said two disc, in the attachment hole of said two disc correspondence connecting tube is installed, said connecting tube is fixedly connected with two disc.

Alternatively, be welding between said connecting tube and the disc.

Alternatively, the material of said connecting tube is that the trade mark is 20 ferrous materials.

Compared with prior art, the utlity model has following advantage:

Two disc pulleys of the utility model embodiment comprise: be provided with the wheel hub that encircles and be fixedly connected with disc in the wheel rim of grooving, the disc that is fixedly connected on two ring-types of wheel rim both sides, the embedding disc; Wherein two web pattern can be strengthened the integral rigidity of pulley; And wheel rim can roll forming; Can eliminate the casting rope race and shrink a type defective, grooving quenches and reaches the above hardness of HRC50, can reduce fabricating cost simultaneously.

Description of drawings

Fig. 1 is the sectional drawing of two disc pulleys of the utility model embodiment;

Fig. 2 is the plan view of two disc pulleys of the utility model embodiment;

Fig. 3 is the sectional drawing of wheel rim in two disc pulley forming processes of the utility model embodiment;

Fig. 4 is the plan view of wheel rim in two disc pulley forming processes of the utility model embodiment;

Fig. 5 is the sectional drawing of disc in two disc pulley forming processes of the utility model embodiment;

Fig. 6 is the plan view of disc in two disc pulley forming processes of the utility model embodiment;

Fig. 7 is the sectional drawing of connecting tube in two disc pulley forming processes of the utility model embodiment;

Fig. 8 is the plan view of connecting tube in two disc pulley forming processes of the utility model embodiment;

Fig. 9 is the sectional drawing of wheel hub in two disc pulley forming processes of the utility model embodiment;

Figure 10 is the plan view of wheel hub in two disc pulley forming processes of the utility model embodiment;

Figure 11 is the sectional drawing after each parts assembly unit in two disc pulley forming processes of the utility model embodiment;

Figure 12 is the plan view after each parts assembly unit in two disc pulley forming processes of the utility model embodiment.

Embodiment

Below in conjunction with specific embodiment and accompanying drawing the utility model is described further, but should limit the protection domain of the utility model with this.

Fig. 1 shows the sectional structure chart of two disc pulleys of present embodiment, and Fig. 2 is the plan view of this pair disc pulley, is elaborated below in conjunction with Fig. 1 and Fig. 2.

As depicted in figs. 1 and 2, two disc pulleys of present embodiment comprise: the wheel rim 1 that is provided with grooving; The disc 2 of two ring-types is fixedly connected on the both sides of wheel rim 1 respectively; Wheel hub 4 is fixedly connected in the interior ring of embedding disc 2 and with disc 2.In addition, in two disc pulleys of present embodiment, also be provided with attachment hole on the disc 2, the attachment hole of two disc 2 over against and corresponding attachment hole in connecting tube 3 is installed, this connecting tube 3 is fixedly connected with two disc 2.

Particularly, the Placement in the present embodiment between wheel rim 1 and the disc 2 is connected through wheel rim disc weld seam 5 for welding; Placement between disc 2 and the wheel hub 4 also for welding, is connected through wheel hub disc weld seam 7; Placement between connecting tube 3 and the disc 2 also for welding, is connected through disc connecting tube weld seam 6.

The planar graph of wheel rim 1 also is a ring-type, and its sidewall is provided with grooving, and disc 2 is separately fixed on the bottom surface of its upper and lower both sides.

Fig. 3 to Figure 12 shows the sectional drawing and the plan view of each parts in two disc pulley forming processes of present embodiment, below in conjunction with Fig. 2 to Figure 13 the forming process of this pair disc pulley is elaborated.

At first form wheel rim 1; Can adopt the numerical control machine for ring rolling mill to make the blank of wheel rim, its material can be that the trade mark is the ferrous materials of 35CrMo, can adopt numerically controlled lathe that the blank of wheel rim is carried out roughing afterwards; Form grooving above that, form like Fig. 3 and wheel rim 1 shown in Figure 4.

Make disc 2 afterwards, can adopt the numerical control cutting lathe that steel plate is cut into the disc blank, the steel plate materials that is adopted is that the trade mark is the ferrous materials of Q345-B; Disc blank impact briquetting after will cutting afterwards; For example can upper die and lower die be separately fixed at the upper and lower surfaces of hydraulic press worktable; Patrix descends with the hydraulic press worktable upper surface afterwards; Until the disc blank is fully contacted with counterdie, patrix,, form like Fig. 5 and disc 2 shown in Figure 6 with the compression moulding of disc blank.

Next make connecting tube 3, can use the abrasive wheel cutting machine seamless steel pipe to cut into Fig. 7, connecting tube shown in Figure 8, the material of seamless steel pipe can be that the trade mark is 20 ferrous materials.

Make wheel hub 4 afterwards, can adopt open die forging to make the wheel hub blank, material is that the trade mark is 35 ferrous materials; Next can use lathe that the wheel hub blank is processed into Fig. 9 and wheel hub 4 shown in Figure 10.

Carry out assembly unit afterwards,, wheel rim 1, disc 2 and wheel hub 4 are assembled, and penetrate bolt 10 in the attachment hole on disc 2, adopt packing ring 11 and nut 12 that two disc 2 are fixed like Figure 11 and shown in Figure 12; Integral level places on the rotating welding bench afterwards, forms wheel rim disc weld seam 5, wheel hub disc weld seam 7 in the one side welding, and whole then upset forms wheel rim disc weld seam 5, wheel hub disc weld seam 7 in the another side welding.

Can bolt 10, packing ring 11 and nut 12 be removed afterwards; The connecting tube 3 (with reference to figure 1) of between disc 2, packing in the corresponding attachment hole welds a disc connecting tube weld seam 6 (with reference to figure 1), and pulley then overturns; Weld the disc connecting tube weld seam 6 (with reference to figure 1) of another side again; After the polishing welding seams, two disc pulleys are moulding, and its structure is as depicted in figs. 1 and 2.

After welding fabrication, can two disc pulleys of moulding be put into the electric furnace of resistance type processing that eliminates stress, use numerically controlled lathe that grooving is worked into preset size then; Next can carry out medium frequency induction hardening, temper to the grooving surface; Afterwards preset size is arrived in the wheel hub Vehicle Processing, bore and attack screw, accomplish the making of two disc pulleys.

Though the utility model with preferred embodiment openly as above; But it is not to be used for limiting the utility model; Any those skilled in the art are in spirit that does not break away from the utility model and scope; Can make possible change and modification, so the protection domain of the utility model should be as the criterion with the scope that the utility model claim is defined.

Claims

1. a two disc pulley is characterized in that, comprising:

Be provided with the wheel rim of grooving;

2. according to claim 1 pair of disc pulley is characterized in that, is welding between said disc and the wheel rim.

3. according to claim 1 pair of disc pulley is characterized in that, is welding between said disc and the wheel hub.

4. according to claim 1 pair of disc pulley is characterized in that, the material of said wheel rim is that the trade mark is the ferrous materials of 35CrMo.

5. according to claim 1 pair of disc pulley is characterized in that, the material of said disc is that the trade mark is the ferrous materials of Q345-B.

6. according to claim 1 pair of disc pulley is characterized in that, the material of said wheel hub is that the trade mark is 35 ferrous materials.

7. according to each described pair of disc pulley in the claim 1 to 6, it is characterized in that having attachment hole on said two disc, in the attachment hole of said two disc correspondence connecting tube is installed, said connecting tube is fixedly connected with two disc.

8. according to claim 7 pair of disc pulley is characterized in that, is welding between said connecting tube and the disc.

9. according to claim 7 pair of disc pulley is characterized in that, the material of said connecting tube is that the trade mark is 20 ferrous materials.