CN212536204U

CN212536204U - Front end structure of radial flow fan of rail transit passenger car

Info

Publication number: CN212536204U
Application number: CN202020789461.2U
Authority: CN
Inventors: 赵京; 刁雷
Original assignee: Guizhou Hanghang Technology Co ltd
Current assignee: Guizhou Hanghang Technology Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-02-12
Anticipated expiration: 2030-05-13

Abstract

The utility model discloses an end structure before track traffic passenger train radial flow fan. The utility model discloses a boss, boss front side swing joint do not have the fire-retardant nylon cutting ferrule of halogen, are equipped with the rubber circle in the fire-retardant nylon cutting ferrule of halogen-free. The utility model has the advantages of the lightweight can the impact resistance, and the damping is effectual, and long service life can fall and make an uproar, is difficult for appearing the noise, good heat dissipation, and the wearability is good, and stability is good.

Description

Front end structure of radial flow fan of rail transit passenger car

Technical Field

The utility model relates to an end technical field, especially a end structure before rail transit passenger train radial flow fan of radial flow fan.

Background

The radial flow fan is used in ventilation and air exchange of public transport means, such as subway, train, high-speed railway, bus, etc. and aims at improving the through flow circulation of air inside the transport means and making human body feel comfortable. The front end of the radial flow fan is an important part of the radial flow fan, and the front end of the existing radial flow fan is of an all-metal structure. However, the front end structure of the radial flow fan connected by the all-metal structure has the conditions of heavy weight, poor vibration damping performance and poor heat dissipation performance. Meanwhile, when the existing radial flow fan works for a long time, the front end structure of the radial flow fan generates noise, and the existence of the noise indicates that the internal structure of the front end structure of the radial flow fan has problems, and indicates that the machine is damaged and the service life is short.

Once the radial flow fan is installed, the maintenance cost is high. Therefore, it is necessary to prolong the service life of the product as much as possible and reduce the maintenance rate, which is an important research and development direction of the current radial flow fan.

Disclosure of Invention

An object of the utility model is to provide an end structure before track traffic passenger train radial flow fan. The utility model has the advantages of lightweight, the damping is effectual, good heat dissipation, difficult noise appearing, long service life.

The technical scheme of the utility model: the utility model provides a terminal structure before rail transit passenger train radial flow fan, includes the boss, and boss front side swing joint does not have steamed fire-retardant nylon cutting ferrule, is equipped with the rubber circle in the steamed fire-retardant nylon cutting ferrule.

In the front end structure of the radial flow fan of the rail transit passenger car, a bayonet is arranged on the halogen-free flame-retardant nylon clamping sleeve; the outer wall of the rubber ring is provided with a clamping head.

In the front end structure of the radial flow fan of the rail transit passenger car, the outer wall of the rubber ring is in a gear shape.

In the front end structure of the radial flow fan of the rail transit passenger car, the rear side of the boss is provided with the reinforcing rib.

In the front end structure of the radial flow fan of the rail transit passenger car, two reinforcing ribs are arranged.

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

1. the utility model discloses compare with current end structure before the radial fan, evenly distributed load does not have the design of steamed fire-retardant nylon cutting ferrule and gear form rubber circle and makes the utility model has the advantages of lightweight.

2. Through the analysis contrast high-speed rotatory radial flow fan right the utility model discloses the front end of structure and current radial flow fan's front end produce the influence of impact force, discover the utility model discloses a rubber circle and do not have the fire-retardant cutting ferrule structure of halogen more can alleviate the impact force than current radial flow fan front end metallic interconnect structure. From this, the utility model has the advantages of anti-impact force, through reducing the impact force, the utility model discloses still have the effectual, long service life's of damping advantage.

3. The utility model discloses the impact force to the front end structure production when the structure can alleviate the rotation of radial fan, according to relevant mathematical computation and physics general knowledge, under the reduction of impact force, can weaken the holistic noise of machine, so the utility model discloses can play and fall the effect of making an uproar, the noise is difficult for appearing, can provide quiet comfortable environment for the passenger.

4. When the radial flow fan rotates for a long time, the situation of generating heat by friction can occur. Therefore, the utility model discloses the rubber circle outer wall structure that sets up is the gear form, and the contact of the reducible friction surface of overall structure has the advantage that the radiating effect is good, and the rubber circle structure of gear form has the damping effect simultaneously, the life of multiplicable radial fan and preceding end.

5. The utility model provides a do not have steamed fire-retardant nylon material cutting ferrule and rubber circle and current radial fan's metal front end head compare, have the advantage on the material, specifically have the advantage that the fire resistance is good, high tenacity, wear-resisting, shock-resistant and oxidation resistance, these advantages can increase the life of guarantee structure.

6. The utility model discloses when the structure was used, can drive the rubber circle when the radial fan rotates and rotate, the utility model discloses the bayonet socket and the dop structure of addding can avoid the rubber circle to skid in there is not steamed fire-retardant nylon card cover, so the utility model discloses all have the advantage that stability is good.

7. After the work of starting at urban rail transit passenger train, just begin 12 hours uninterrupted duty when the radial fan, the utility model discloses add on the boss and established two strengthening ribs, when the fan is not intermittent type and rotates, can guarantee to have the stability that halogen-free flame retardant nylon cutting ferrule and radial fan are connected.

In summary, the following steps: the utility model has the advantages of the lightweight can the impact resistance, and the damping is effectual, and long service life can fall and make an uproar, is difficult for appearing the noise, good heat dissipation, and the wearability is good, and stability is good.

Drawings

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

FIG. 2 is a second schematic structural diagram of the present invention;

fig. 3 is a schematic view of the direction of the impact force generated when the radial fan of the present invention rotates.

The labels in the figures are: 1-boss, 2-halogen-free flame-retardant nylon ferrule, 3-rubber ring, 4-bayonet, 5-chuck, 6-reinforcing rib, 7-ferrule connecting part and 8-hole; f1-impact force, F2-rotational impact force.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A front end structure of a radial flow fan of a rail transit passenger car comprises a boss 1, wherein the front side of the boss 1 is movably connected with a halogen-free flame-retardant nylon clamping sleeve 2, and a rubber ring 3 is arranged in the halogen-free flame-retardant nylon clamping sleeve 2. Wherein, the boss 1 fixes the halogen-free flame-retardant nylon cutting ferrule 2, and the halogen-free flame-retardant nylon cutting ferrule 2 fixes the rubber ring 3.

The halogen-free flame-retardant nylon cutting sleeve 2 structurally comprises a cutting sleeve connecting part 7, and the cutting sleeve connecting part 7 is structurally nested in a circular hole groove formed in the boss 1. The whole halogen-free flame-retardant nylon cutting sleeve 2 is used for installing the nested rubber ring 3, connecting a rotating shaft of an impeller of the radial flow fan and connecting a fan cover end cover of the radial flow fan. The center of the cutting sleeve connecting part 7 is provided with a hole 8, the boss 1 is also provided with a hole, and the two holes are communicated with each other and are used for transition fit when the boss 1 is used for installing a bolt.

The halogen-free flame-retardant nylon cutting sleeve 2 is provided with a bayonet 4; and a clamping head 5 is arranged on the outer wall of the rubber ring 3. The fixing of the halogen-free flame-retardant nylon cutting sleeve 2 and the rubber ring 3 can be realized by clamping the clamping head 5 into the clamping opening 4.

The outer wall of the rubber ring 3 is in a gear shape. The gear-shaped rubber ring 3 can reduce the weight, reduce the friction area between the gear-shaped rubber ring and the halogen-free flame-retardant nylon cutting sleeve 2, reduce the heat generated by friction and is beneficial to heat dissipation.

And a reinforcing rib 6 is arranged at the rear side of the boss 1. The strengthening rib 6 plays a role in stabilizing the structure of the utility model.

Two reinforcing ribs 6 are arranged. A better stabilizing effect can be achieved by two reinforcing ribs 6.

The utility model discloses the application method of structure is the same with the application method of end before the current radial fan, uses the utility model discloses replace current end structure before the radial fan use in the radial fan can.

Claims

1. The utility model provides a terminal structure before rail transit passenger train radial flow fan which characterized in that: comprises a boss (1),

the front side of the boss (1) is movably connected with a halogen-free flame-retardant nylon clamping sleeve (2), and a rubber ring (3) is arranged in the halogen-free flame-retardant nylon clamping sleeve (2).

2. The rail transit passenger car radial flow fan front end structure of claim 1, wherein: the halogen-free flame-retardant nylon clamping sleeve (2) is provided with a bayonet (4); the outer wall of the rubber ring (3) is provided with a clamping head (5).

3. The rail transit passenger car radial flow fan front end structure of claim 1, wherein: the outer wall of the rubber ring (3) is in a gear shape.

4. The rail transit passenger car radial flow fan front end structure of claim 1, wherein: and reinforcing ribs (6) are arranged on the rear side of the boss (1).

5. The rail transit passenger car radial flow fan front end structure of claim 4, wherein: two reinforcing ribs (6) are arranged.