CN215058023U

CN215058023U - Cooling air duct of air compressor

Info

Publication number: CN215058023U
Application number: CN202121897087.9U
Authority: CN
Inventors: 李家忠
Original assignee: Hebei Juxin Machinery Parts Co ltd
Current assignee: Hebei Juxin Machinery Parts Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2021-12-07
Anticipated expiration: 2031-08-13

Abstract

The utility model discloses a cooling air duct of an air compressor, wherein a rotating shaft is arranged in a box body, a crankshaft for driving an air cylinder is arranged on the rotating shaft, and the air cylinder is distributed on the box body in a cross manner; the air inlet of the first-stage compression cylinder is directly exposed in the air; the front surface and the back surface of the box body are symmetrically provided with a plurality of vent holes which are uniformly distributed along the circumferential direction of the rotating shaft; fan wheels are arranged at two ends of the rotating shaft, the fan wheels are positioned at two sides of the box body, and the fan wheels are connected to a motor flywheel through a belt. The utility model adopts the above structure cooling air duct, the box operation, form the convection current in the box, the temperature is low, and the load is little, and one-level compression cylinder airflow rate is high.

Description

Cooling air duct of air compressor

Technical Field

The utility model belongs to the technical field of the air compressor machine technique and specifically relates to a cooling duct of air compressor machine is related to.

Background

An air compressor is a device for compressing air. The air compressor is constructed similarly to a water pump. Most air compressors are reciprocating piston, rotating vane, or rotating screw. The piston type air compressor generally comprises a box body and cylinder assemblies connected to the box body, wherein the number of the cylinder assemblies is determined according to the required compression level. The box is internally provided with a rotating shaft, the rotating shaft is provided with a crankshaft structure, and the crankshaft drives the driving cylinder to operate. Produce a large amount of heats among the box work engineering, for improving the heat-sinking capability, the air intake of one-level compression cylinder passes through the air duct and is connected with the box, and the box lies in the hopper connection that admits air, and the air current just can flow the box earlier and get into the cylinder again like this to realize the box cooling. In this way, the heat dissipation capacity is not high, since the air flow is only moving one-sided, and at the expense of the cylinder flow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cooling duct of air compressor machine solves the problem of the unobvious and loss flow of cooling when air compressor machine organism moves.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a cooling air duct of an air compressor is characterized in that a rotating shaft is arranged in a box body, a crankshaft for driving air cylinders is mounted on the rotating shaft, the air cylinders are distributed on the box body in a cross manner, and air inlets of primary compression air cylinders are directly exposed in the air; the front surface and the back surface of the box body are symmetrically provided with a plurality of vent holes which are uniformly distributed along the circumferential direction of the rotating shaft; fan wheels are arranged at two ends of the rotating shaft, the fan wheels are positioned at two sides of the box body, and the fan wheels are connected to a motor flywheel through a belt.

Preferably, the diameter of the fan wheel is larger than the distance from the side of the cylinder to the rotating shaft.

The utility model adopts the above structure's cooling duct of air compressor machine possesses following advantage:

1. the existing box body can be directly modified, the modification cost is low, and not only impurities are removed;

2. the box body is directly cooled, and a separate flow guide pipeline is not required to be arranged, so that the space of the machine body is saved;

3. the fan wheel rotating at high speed forms convection in the box body, so that the temperature is low and the load is small when the machine body runs, and external impurities are ensured to be difficult to enter the primary compression cylinder;

4. the first-stage compression cylinder directly absorbs the outside air, and the gas flow is large.

Drawings

Fig. 1 is a first perspective view of a conventional air compressor;

fig. 2 is a second perspective view of the conventional air compressor;

fig. 3 is a third perspective view of the conventional air compressor;

fig. 4 is a first perspective view of an embodiment of the present invention;

fig. 5 is a second perspective view of the embodiment of the present invention;

fig. 6 is a third perspective view of the embodiment of the present invention;

fig. 7 is a structural view of a conventional fan wheel.

Reference numerals

1. A first stage compression cylinder; 2. a box body; 3. an air duct; 4. a rotating shaft; 5. an air inlet hopper; 6. a vent hole; 7. and a cooling port.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the box 2 of the air compressor is connected with 4 groups of cylinders, wherein the two cylinders at the upper part are first-stage compression cylinders 1. The rear side of the box body 2 is connected with an air inlet hopper 5, the front side of the box body 2 is symmetrically provided with two cooling ports 7, and the cooling ports 7 are connected with an air inlet of the first-stage compression cylinder 1. As shown by an arrow, the air flow passes through the air inlet hopper 5, the box body 2, the cooling port 7, the air duct 3 and the primary compression cylinder 1 in sequence, and the air flow cannot complete convection in the box body 2. Relatively speaking, the unidirectional airflow has slow cooling speed, large load and low flow rate to the box body 2.

As shown in fig. 4-6, the air compressor is improved by modifying the case 2, so that convection is formed in the case 2, the heat dissipation speed of the case 2 is increased, and the air flow is increased.

In this application, 2 both sides of box no longer set up to closed cavity. Specifically, ventilation holes 6 are formed in two sides of the box body 2, and the ventilation holes 6 are uniformly distributed along the circumferential direction of the rotating shaft 4. The output end of the rotating shaft 4 is provided with a fan wheel which is driven by a motor. The number of the fans can be two, and the two fans are respectively positioned at two sides of the box body 2. When the fan rotates, positive and negative high-speed convection is formed in the air flow in the box body 2, the air flow radiates towards the direction of the air cylinder, the air convection is sufficient, the running temperature of the machine body is obviously reduced, and the load of the rotating shaft 4 is small.

The radius of fan wheel will be greater than the distance between 1 avris of one-level compression cylinder to pivot 4 to make the fan wheel cover one-level compression cylinder 1, and then inhale impurity when avoiding one-level compression cylinder 1 to absorb the air.

This application removes air inlet fill, air duct 3 on former design basis, makes the air inlet of one-level compression cylinder 1 directly open, directly absorbs the outside air current. By adopting the mode, the air suction quantity of the cylinder is increased, and the working flow of the cylinder is improved.

To sum up, the utility model adopts the above structure's cooling duct of air compressor machine, the internal convection current that forms of air compressor machine box, the cooling is obvious, reduces pivot work load, improves air compressor machine gas flow.

The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.

Claims

1. The utility model provides a cooling air duct of air compressor machine, sets up the pivot in the box, installs the bent axle that is used for driving actuating cylinder in the pivot, and the cylinder cross distributes on the box, its characterized in that: the air inlet of the first-stage compression cylinder is directly exposed in the air; the front surface and the back surface of the box body are symmetrically provided with a plurality of vent holes which are uniformly distributed along the circumferential direction of the rotating shaft; fan wheels are arranged at two ends of the rotating shaft, the fan wheels are positioned at two sides of the box body, and the fan wheels are connected to a motor flywheel through a belt.

2. The cooling air duct of the air compressor according to claim 1, wherein: the diameter of the fan wheel is larger than the distance from the side of the cylinder to the rotating shaft.