CN219262754U

CN219262754U - Novel fan main shaft with long service life

Info

Publication number: CN219262754U
Application number: CN202320028766.5U
Authority: CN
Inventors: 黄绍兵
Original assignee: Hangzhou Pingyuan Machinery Co ltd
Current assignee: Hangzhou Pingyuan Machinery Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-06-27
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses a novel fan main shaft with long service life, which comprises a main shaft body, wherein the main shaft body is made of steel, one side of the main shaft body is fixedly connected with a disc, the surface of the disc is provided with a thread groove in an annular mode, one side of the disc is provided with a positioning disc, the inner thread of the positioning disc is connected with a positioning bolt, and the positioning bolt is matched with the thread groove; this device drives the disc through the main shaft body, disc and positioning disk cooperation to cooperation positioning bolt, convenience of customers carries out the dismouting to the main shaft body, and the positioning disk drives first axis body simultaneously, and first axis body drives the second axis body, and through the cooperation of the inside first oil filler point of first axis body and the inside second oil filler point of second axis body, it is more smooth to make main shaft body pivoted, makes round hole and louvre cooperation simultaneously, can make the product body cool down, can effectively alleviate the quality of product, and product security performance is higher.

Description

Novel fan main shaft with long service life

Technical Field

The utility model relates to the technical field of fan spindles, in particular to a novel fan spindle with long service life.

Background

At present, most of domestic fan main shafts are solid steel shafts, and main shaft blanks are forged pieces or hot-rolled bars; the main characteristics are that: the processing technology is simple, the material consumption is high, the main shaft weight is high, and the bearing load is high.

As the number of stages of the multistage centrifugal blower increases due to the increase of the pressure ratio, the corresponding supporting center span and the length of the main shaft also increase. Meanwhile, because of the design requirement of the critical rotation speed of the rotor, the large-span main shaft must be ensured to have enough rigidity; the common measure adopted for the purpose is to enlarge the shaft diameter; so that the weight of the spindle is greatly increased. For the machine type adopting the rolling bearing structure, the bearing load is increased, the service life of the bearing is shortened, and a series of problems are brought.

The existing fan main shaft product body is heavy, so that the weight of the main shaft is increased when the main shaft rotates, and the safety performance of the product is low.

Therefore, the utility model provides a novel fan main shaft with long service life to solve the problems in the prior art.

Disclosure of Invention

The utility model provides a novel fan main shaft with long service life, which solves the problems of heavy main shaft body, increased weight when the main shaft rotates and lower safety performance of the product.

In order to solve the problems, the utility model provides a novel fan main shaft with long service life, which comprises a main shaft body, wherein the main shaft body is made of steel, one side of the main shaft body is fixedly connected with a disc, the surface of the disc is provided with a thread groove in an annular mode, one side of the disc is provided with a positioning disc, the inner thread of the positioning disc is connected with a positioning bolt, the positioning bolt is matched with the thread groove, one side of the positioning disc is fixedly connected with a first shaft body, and the outer wall of the first shaft body is provided with a first oil filling hole.

Preferably, a second shaft body is fixedly connected to one side of the first shaft body, and a second oil filling hole is formed in the outer wall of the second shaft body.

Preferably, the first shaft body and one end of the second shaft body are both provided with chamfers.

Preferably, a round hole is formed in the main shaft body, and the round hole penetrates through the first shaft body and the second shaft body.

Preferably, the inside annular of main shaft body has seted up the louvre, the quantity of louvre is provided with a plurality of.

The beneficial effects of the utility model are as follows: the main shaft body is used for driving the disc, the disc is matched with the positioning disc and matched with the positioning bolt, a user can conveniently disassemble and assemble the main shaft body, the positioning disc drives the first shaft body, the first shaft body drives the second shaft body, the first oil filling hole in the first shaft body is matched with the second oil filling hole in the second shaft body, the main shaft body is enabled to rotate more smoothly, the round hole is matched with the radiating hole, the product body can be cooled, the quality of the product can be effectively reduced, the product safety performance is higher, the product quality is lower, the product is provided with a multiple radiating structure, the experimental service life of the main shaft body is prolonged, and the practicability is lower.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

fig. 3 is a schematic diagram of an explosive structure according to the present utility model.

Wherein: 1. a main shaft body; 2. a disc; 3. a positioning plate; 4. positioning bolts; 5. a first shaft body; 6. a first oil filler hole; 7. a second shaft body; 8. a second oil filling hole; 9. a round hole; 10. a heat radiation hole; 11. a thread groove.

Detailed Description

The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

According to the novel fan main shaft with long service life, shown in fig. 1, 2 and 3, the novel fan main shaft comprises a main shaft body 1, the main shaft body 1 is made of steel, one side fixedly connected with disc 2 of main shaft body 1, screw thread groove 11 has been seted up to the surface annular of disc 2, one side of disc 2 is equipped with positioning disk 3, the inside threaded connection of positioning disk 3 has positioning bolt 4, positioning bolt 4 and screw thread groove 11 looks adaptation, one side fixedly connected with first axis body 5 of positioning disk 3, first oil filler point 6 has been seted up to the outer wall of first axis body 5.

One side of the first shaft body 5 is fixedly connected with a second shaft body 7, and a second oil filling hole 8 is formed in the outer wall of the second shaft body 7.

Chamfering is arranged at one ends of the first shaft body 5 and the second shaft body 7.

The inside of main shaft body 1 has seted up round hole 9, round hole 9 runs through first axis body 5 and second axis body 7, can make the product body cool down through round hole 9, effectively lightens the quality of product simultaneously, makes product security performance improve.

The inside annular of main shaft body 1 has seted up louvre 10, the quantity of louvre 10 is provided with a plurality ofly, further makes the heat dispersion of product improve.

The working principle of the novel fan main shaft with long service life is as follows:

when in use, the disc 2 is driven by the main shaft body 1, the disc 2 is matched with the positioning disc 3, and the positioning bolt 4 is matched, so that a user can conveniently disassemble and assemble the main shaft body 1, meanwhile, the positioning disc 3 drives the first shaft body 5, the first shaft body 5 drives the second shaft body 7, the main shaft body 1 rotates more smoothly by matching the first oil filling hole 6 in the first shaft body 5 with the second oil filling hole 8 in the second shaft body 7, and meanwhile, the round hole 9 is matched with the radiating hole 10, so that the main shaft body can be cooled, the quality of a product can be effectively lightened, and the safety performance of the product is higher.

Compared with the related art, the novel fan main shaft with long service life has the following beneficial effects:

this device drives disc 2 through main shaft body 1, disc 2 and positioning disk 3 cooperation, and cooperation positioning bolt 4, convenience of customers carries out the dismouting to main shaft body 1, simultaneously positioning disk 3 drives first axis body 5, first axis body 5 drives second axis body 7, through the inside first oil filler point 6 of first axis body 5 and the inside second oil filler point 8 cooperation of second axis body 7, make main shaft body 1 pivoted more smooth, make round hole 9 and louvre 10 cooperation simultaneously, can make the product body cool down, can effectively alleviate the quality of product, product security performance is higher, this product quality is lower, have multiple heat radiation structure, can make the experimental life of main shaft body 1 improve, the practicality is lower.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a long service life's novel fan main shaft, includes main shaft body (1), its characterized in that: the novel spindle comprises a spindle body (1), and is characterized in that the spindle body (1) is made of steel, one side of the spindle body (1) is fixedly connected with a disc (2), a thread groove (11) is formed in the surface of the disc (2) in an annular mode, a positioning disc (3) is arranged on one side of the disc (2), a positioning bolt (4) is connected to the positioning disc (3) in an internal thread mode, the positioning bolt (4) is matched with the thread groove (11), one side of the positioning disc (3) is fixedly connected with a first shaft body (5), and a first oil filling hole (6) is formed in the outer wall of the first shaft body (5).

2. The long life novel fan spindle of claim 1, wherein: one side of the first shaft body (5) is fixedly connected with a second shaft body (7), and a second oil filling hole (8) is formed in the outer wall of the second shaft body (7).

3. The long life novel fan spindle of claim 2, wherein: one ends of the first shaft body (5) and the second shaft body (7) are provided with chamfers.

4. A novel long life fan spindle according to claim 3, wherein: a round hole (9) is formed in the main shaft body (1), and the round hole (9) penetrates through the first shaft body (5) and the second shaft body (7).

5. The long life novel fan spindle of claim 1, wherein: the novel spindle is characterized in that the inner part of the spindle body (1) is annularly provided with heat dissipation holes (10), and the number of the heat dissipation holes (10) is multiple.