CN216894782U

CN216894782U - Miniature oil-free compressor

Info

Publication number: CN216894782U
Application number: CN202220242671.9U
Authority: CN
Inventors: 梁国亮; 杨林斌
Original assignee: Foshan Liya Electromechanical Technology Co ltd
Current assignee: Foshan Liya Electromechanical Technology Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-07-05
Anticipated expiration: 2032-01-28

Abstract

The utility model relates to the field of compressors, in particular to a micro oil-free compressor which comprises two casings, wherein the two casings are symmetrically arranged on two sides of a motor, air cylinders are arranged on the casings on the two sides, a compression air chamber is connected and arranged on each air cylinder, the output end of the motor is connected with a crank, a connecting rod is arranged on each crank, a piston is arranged at the top end of each connecting rod, and the piston is movably arranged in each air cylinder. According to the utility model, when the shell normally operates, the internal structure of the shell is compact, the cranks on two sides are arranged in the concave space of the shell, and the positions of the crank jackscrews are reserved by the arc-shaped holes, so that the overall structure of the compressor is compact, the space is more effectively utilized and saved, and the size of the compressor is shortened.

Description

Miniature oil-free compressor

Technical Field

The utility model relates to the technical field of compressors, in particular to a miniature oil-free compressor.

Background

An oil-free compressor refers to a compressor that does not use lubricating oil in the compressor cylinder. The crankcase of the oil-free compressor is of a dry structure, and the large and small holes of a connecting rod and front and rear main bearings of the crankshaft of the oil-free compressor generally adopt grease-containing ball bearings sealed by double ports. Since no lubricating oil is in contact with the compressed gas source during operation, the discharged gas is absolutely free of oil gas.

The crankcase of the existing oil-free compressor occupies a large position, so that the whole size of the compressor is long, the size is large, and the occupied area is large, so that the compressor is inconvenient to install and use when being installed and used.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a micro oil-free compressor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a miniature oil-free compressor, includes the casing, the casing is provided with two, and two casing symmetries are installed in the both sides of motor, and all install the cylinder on the casing of both sides, connect on the cylinder and install compression air chamber, and the output of motor is connected with the crank, is provided with the connecting rod on the crank, and the piston is installed on the top of connecting rod, and the piston activity sets up in the cylinder.

Preferably, the machine shells on the two sides are fixedly connected through bolts.

Preferably, both ends of the motor are provided with motor rotors, the motor rotors are fixed with the crank shaft through crank jackscrews, and the crank shaft is inserted and installed in the middle of the crank.

Preferably, a motor stator is installed on the outer side of the motor rotor in the casing, and the motor rotor is rotatably connected with the casing through a motor bearing.

Preferably, the crank is arranged in the concave space on one side of the shell, and a crank shaft on the crank is rotatably connected with the shell through a crank bearing.

Preferably, the casing is provided with an arc-shaped hole at a position corresponding to the crank jackscrew on the crank.

Preferably, a plurality of heat dissipation holes are uniformly formed in the end face of one side of the casing.

Preferably, the bottom end of the casing is provided with a plurality of bottom mounting feet.

Preferably, the middle part of the machine shell is provided with a plurality of middle mounting feet.

The utility model has the beneficial effects that:

according to the utility model, the shell normally operates, and meanwhile, the internal structure of the shell is compact, the cranks on two sides are arranged in the concave space of the shell, and the crank jackscrew is reserved by the arc-shaped hole, so that the overall structure of the compressor is compact, the space is more effectively utilized and saved, and the size of the compressor is shortened.

Drawings

Fig. 1 is a schematic perspective view of a micro oil-free compressor according to the present invention;

FIG. 2 is a schematic structural view of a vertical cross section of a micro oil-free compressor according to the present invention;

FIG. 3 is a schematic side view of a micro oil-free compressor according to the present invention;

fig. 4 is a schematic cross-sectional structure view of a casing of a micro oil-free compressor according to the present invention;

FIG. 5 is a schematic structural view of an arc hole and a heat dissipation hole on a casing of a micro oil-free compressor according to the present invention;

fig. 6 is a schematic structural view of a supporting leg on a casing of a micro oil-free compressor according to the present invention.

In the figure: 1 machine shell, 2 cylinders, 3 compression air chambers, 4 motors, 41 motor rotors, 42 motor stators, 5 cranks, 6 connecting rods, 7 pistons, 8 crank shafts, 9 crank bearings, 10 crank jackscrews, 11 motor bearings, 101 arc-shaped holes, 102 heat dissipation holes, 103 bottom mounting feet and 104 middle mounting feet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-6, a micro oil-free compressor comprises two casings 1, wherein the two casings 1 are symmetrically arranged at two sides of a motor 4, and the casings 1 at the two sides are fixedly connected through bolts.

And all install cylinder 2 on the casing 1 of both sides, connect on the cylinder 2 and install compressed air chamber 3, and the output of motor 4 is connected with crank 5, is provided with connecting rod 6 on the crank 5, and piston 7 is installed on the top of connecting rod 6, and piston 7 activity sets up in cylinder 2.

Both ends of the motor 4 are provided with motor rotors 41, the motor rotors 41 are fixed with the crank shaft 8 through crank jackscrews 10, and the crank shaft 8 is inserted and installed in the middle of the crank 5.

A motor stator 42 is mounted on the outer side of the motor rotor 41 in the housing 1, and the motor rotor 41 is rotatably connected to the housing 1 through a motor bearing 11.

The crank 5 is arranged in the concave space at one side of the machine shell 1, and a crank shaft 8 on the crank 5 is rotationally connected with the machine shell 1 through a crank bearing 9. Moreover, the casing 1 is provided with an arc-shaped hole 101 at a position corresponding to the crank jackscrew 10 on the crank 5, so that the crank jackscrew 10 can be conveniently installed.

Wherein, a plurality of louvres 102 have evenly been seted up on a side end face of casing 1, the heat dissipation of being convenient for, and the bottom of casing 1 is provided with a plurality of bottom mounting foot 103, and the middle part of casing 1 is provided with a plurality of mid-mounting foot 104, and the installation foot of a plurality of positions is convenient for fix.

In this embodiment, oil free compressor is when the operation, motor 4 in the casing 1 passes through motor rotor 41 transmission crankshaft 8, thereby drive crank 5 and connecting rod 6 and promote piston 7, piston 7 is on cylinder 2, the lower motion, cylinder 2 cooperation compression air chamber 3 is breathed in, exhaust, compact structure in the casing 1, and the crank 5 of both sides all arranges casing 1's indent space department in, the 10 positions of crank jackscrew are left by arc hole 101, make compressor overall structure compact, thereby more effective utilization and save space, shorten the compressor size.

Moreover, a plurality of heat dissipation holes 102 are uniformly formed in one side end face of the casing 1, so that heat dissipation is facilitated, and the bottom mounting foot 103 at the bottom end of the casing 1 and the middle mounting foot 104 at the middle part facilitate the installation of the compressor.

In the utility model, when the shell 1 normally operates, the internal structure of the shell is compact, the cranks 5 on two sides are arranged in the concave space of the shell 1, and the positions of the crank jackscrews 10 are reserved by the arc-shaped holes 101, so that the overall structure of the compressor is compact, the space is more effectively utilized and saved, and the size of the compressor is shortened.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a miniature oil-free compressor, includes casing (1), its characterized in that, casing (1) is provided with two, and two casing (1) symmetries are installed in the both sides of motor (4), and all install cylinder (2) on casing (1) of both sides, connect on cylinder (2) and install compression air chamber (3), and the output of motor (4) is connected with crank (5), is provided with connecting rod (6) on crank (5), and piston (7) are installed on the top of connecting rod (6), and piston (7) activity sets up in cylinder (2).

2. A miniature oil-free compressor as claimed in claim 1, wherein the casings (1) at both sides are fixedly connected by bolts.

3. A miniature oil-free compressor as claimed in claim 1, wherein both ends of the motor (4) are provided with motor rotors (41), the motor rotors (41) are fixed with the crank shaft (8) through crank jackscrews (10), and the crank shaft (8) is inserted and installed in the middle of the crank (5).

4. A miniature oil-free compressor as claimed in claim 3, wherein the motor stator (42) is mounted on the outside of the motor rotor (41) in the housing (1), and the motor rotor (41) is rotatably connected to the housing (1) through a motor bearing (11).

5. A miniature oil-free compressor as claimed in claim 3, wherein the crank (5) is disposed in a concave space on one side of the housing (1), and the crank shaft (8) of the crank (5) is rotatably connected to the housing (1) via a crank bearing (9).

6. A miniature oil-free compressor as claimed in claim 3, wherein the housing (1) is provided with an arc-shaped hole (101) at a position corresponding to the crank jackscrew (10) on the crank (5).

7. A miniature oil-free compressor as claimed in claim 1, wherein a plurality of heat dissipating holes (102) are uniformly formed on one side end surface of the casing (1).

8. A miniature oil-free compressor as claimed in claim 1, wherein the bottom end of the casing (1) is provided with a plurality of bottom mounting feet (103).

9. A miniature oil-free compressor as claimed in claim 1, wherein the center of the casing (1) is provided with a plurality of center mounting feet (104).