Novel noise-reduction oil-free machine

Abstract

The utility model provides a novel noise-reduction oil-free machine, and belongs to the technical field of air compressors. The oil-free machine solves the problem that an existing oil-free machine is large in noise after being abraded. The novel noise-reduction oil-free machine comprises an oil-free machine body and a screw assembly arranged on the oil-free machine body and matched with the oil-free machine body, the screw assembly comprises a shell connected with the oil-free machine body and provided with a cavity, a screw unit arranged in the shell and a lubricating unit arranged in the shell and used for circulating flowing of lubricating oil, the shell is located in the cavity and is provided with two partition plates which are connected with the shell and divide the cavity into a front cavity, a middle cavity and a rear cavity, and the screw rod unit comprises two compression screw rods which are matched with each other and are arranged in the middle cavity and a plurality of transmission teeth which are arranged on the compression screw rods and drive the compression screw rods to move; the two ends of the compression screws are connected with the partition plate through mechanical seals, and the multiple transmission teeth are arranged on the corresponding compression screws. The utility model has the advantages that the abrasion is reduced, so that the noise is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air compressor technology and relates to a new type of noise-reducing oil-free compressor. Background Technology

[0002] The working principle of oil-free air compressors can be divided into several common forms according to their structural type, combining different compression mechanisms and characteristics, such as piston type and screw type. However, in actual use, because the piston type has to perform reciprocating motion, its noise is relatively large, thus failing to meet the usage requirements. The screw type operates by two screws working together, and its noise is relatively lower than that of the piston type. However, driving the screw type requires multiple gears to rotate. If lubrication is not added in time during long-term gear meshing, it is easy to cause gear wear, which will cause the oil-free machine to produce noise after long-term operation, thus failing to meet the usage requirements. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing an oil-free machine that can reduce wear and noise.

[0004] The objective of this utility model can be achieved through the following technical solution: A novel noise-reducing oil-free machine includes an oil-free machine body and a screw assembly disposed on and cooperating with the oil-free machine body. The screw assembly comprises a housing connected to the oil-free machine body and having a cavity, a screw unit disposed within the housing, and a lubrication unit disposed within the housing for circulating lubricating oil and lubricating the screw unit. The housing contains two partition plates connected to and dividing the cavity into a front cavity, a middle cavity, and a rear-front cavity. The screw unit includes two cooperating compression screws disposed within the middle cavity and several transmission teeth disposed on the compression screws and driving the compression screws to move. Both ends of the compression screws are connected to the partition plates via mechanical seals. The several transmission teeth are disposed on corresponding compression screws, and the compression screws cause the transmission teeth to be located within the front or rear cavity. The lubrication unit is located directly above the transmission teeth.

[0005] In the aforementioned novel noise-reducing oil-free machine, the housing includes a lower housing and an upper housing connected to the lower housing, and the lubrication unit is disposed on the upper housing and connected to it.

[0006] In the aforementioned novel noise-reducing oil-free machine, the lubrication unit includes a lubrication pipe, a lubrication pump, and an oil outlet connector. The lubrication pump is mounted on and connected to the main body of the oil-free machine. The housing has an installation hole for the lubrication pipe to extend into the pump body, through which the lubrication pipe is connected to the housing. The oil outlet connector is mounted on the lubrication pipe, and through the lubrication pipe, the oil outlet connector is located at the meshing point of the transmission gear.

[0007] In the aforementioned novel noise-reducing oil-free machine, the housing has a cavity that communicates with the front and rear cavities, and the lower end face of the housing located in the cavity is provided with a connecting pipe that facilitates the discharge of lubricating fluid and cooperates with the lubrication pump to form a circulation.

[0008] In the aforementioned novel noise-reducing oil-free machine, a one-way valve connected to the oil outlet of the oil outlet connector is provided.

[0009] Compared with existing technologies, this new noise-reducing oil-free machine reduces wear and noise by setting up a lubrication unit to circulate lubrication at the meshing points of the transmission gears. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the disassembled part of the new noise-reducing oil-free machine.

[0011] In the diagram, 1 is the housing; 2 is the screw unit; 3 is the partition plate; 4 is the transmission gear; 5 is the lubrication pipe; and 6 is the oil outlet connector. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1As shown, this novel oil-free noise reduction generator includes an oil-free generator body and a screw assembly disposed on and cooperating with the oil-free generator body. The screw assembly includes a housing 1 connected to the oil-free generator body and having a cavity, a screw unit 2 disposed within the housing 1, and a lubrication unit disposed within the housing 1 for circulating lubricating oil and lubricating the screw unit 2. The housing 1 has two partition plates 3 located within the cavity and connected to it, dividing the cavity into a front cavity, a middle cavity, and a rear-front cavity. The screw unit 2 includes two cooperating compression screws disposed within the middle cavity and several transmission teeth 4 disposed on corresponding compression screws and driving the compression screws through meshing. Both ends of the compression screws are connected to the partition plates 3 via mechanical seals. Several transmission teeth 4 are disposed on corresponding compression screws, and the compression screws cause the transmission teeth 4 to be located within the front or rear cavity. The lubrication unit is located directly above the transmission teeth 4. The number of transmission teeth 4 can be two or four. When there are two, they are disposed at one end of the compression screw. The transmission gear 4 is located in the front or rear cavity. When there are four, they are located at both ends of the compression screw, with the four transmission gears 4 respectively located in the front and rear cavities. The lubrication unit includes a lubrication pipe 5, a lubrication pump, and an oil outlet connector 6. The lubrication pump is mounted on and connected to the oilless machine body. The housing 1 has a mounting hole on its upper shell for the lubrication pipe 5 to extend into the pump body. The lubrication pipe 5 is connected to the housing 1 through this mounting hole. The oil outlet connector 6 is mounted on the lubrication pipe 5, and the lubrication pipe 5 makes the oil outlet connector 6 located in the transmission cavity. At the meshing point of tooth 4, the housing 1 has a cavity on the lower shell that communicates with the front and rear chambers. For this purpose, the housing 1 has a through hole to facilitate communication. The lower end face of the housing 1 at the cavity is provided with a connecting pipe to facilitate the discharge of lubricating fluid and to cooperate with the lubricating pump to form a circulation. The end face of the housing 1 at the cavity is provided with a discharge hole. The housing 1 is connected to the connecting pipe through the discharge hole. The oil outlet of the oil outlet connector 6 is provided with a one-way valve connected to it. Through this one-way valve, the lubricating oil is prevented from continuing to flow after the lubricating pump stops.

[0014] As a preferred structure, the housing 1 includes a lower housing and an upper housing connected to the lower housing, and the lubrication unit is disposed on the upper housing and connected to it.

[0015] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0016] Although this document uses terms such as "etc." extensively, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A novel noise-reducing oil-free machine, comprising an oil-free machine body and a screw assembly disposed on and cooperating with the oil-free machine body, characterized in that, The screw assembly includes a housing (1) connected to the oilless machine body and having a cavity, a screw unit (2) disposed in the housing (1), and a lubrication unit disposed in the housing (1) for circulating lubricating oil and lubricating the screw unit (2). The housing (1) is provided with two partition plates (3) connected to it and dividing the cavity into a front cavity, a middle cavity, and a rear front cavity. The screw unit (2) includes two cooperating compression screws disposed in the middle cavity and several transmission teeth (4) disposed on the compression screws and driving the compression screws to move. Both ends of the compression screws are connected to the partition plates (3) through mechanical seals. Several transmission teeth (4) are disposed on the corresponding compression screws, and the transmission teeth (4) are located in the front cavity or the rear cavity through the compression screws. The lubrication unit is located directly above the transmission teeth (4).

2. The novel noise-reducing oil-free machine according to claim 1, characterized in that, The housing (1) includes a lower housing and an upper housing connected to the lower housing, and the lubrication unit is disposed on the upper housing and connected thereto.

3. The novel noise-reducing oil-free machine according to claim 1, characterized in that, The lubrication unit includes a lubrication pipe (5), a lubrication pump, and an oil outlet connector (6). The lubrication pump is mounted on and connected to the oilless machine body. The housing (1) has an installation hole for the lubrication pipe (5) to extend into the pump body. The lubrication pipe (5) is connected to the housing (1) through the installation hole. The oil outlet connector (6) is mounted on the lubrication pipe (5) and is located at the meshing point of the transmission gear (4) through the lubrication pipe (5).

4. The novel noise-reducing oil-free machine according to claim 3, characterized in that, The housing (1) has a cavity that communicates with the front cavity and the rear cavity. The lower end face of the housing (1) located in the cavity is provided with a connecting pipe that facilitates the discharge of lubricating fluid and cooperates with the lubricating pump to form a circulation.

5. A novel noise-reducing oil-free machine according to claim 3, characterized in that, The oil outlet of the oil connector (6) is provided with a one-way valve connected thereto.

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