Main shaft mechanism of scroll air compressor

Abstract

A main shaft mechanism of a scroll air compressor, comprising a main shaft body (1). One end of the main shaft body (1) is provided with a belt pulley (2). A core elongated hole (3) runs through the middle of the main shaft body (1). A connecting member is detachably arranged on the end of the main shaft body (1) close to the belt pulley (2). The connecting member is communicated with the core elongated hole (3). An oil injection nozzle (7) is arranged on the connecting member. In the structure, the oil injection nozzle of the main shaft mechanism of the air compressor is designed outside the whole air compressor, so that an oil injection operation is convenient, and a guarantee is provided for future maintenance of a scroll air compressor head.

Description

A spindle mechanism for a scroll air compressor Technical Field

[0001] This utility model relates to the field of vortex air compressor technology, and more specifically, to a spindle mechanism for a vortex air compressor. Background Technology

[0002] The main shaft of the scroll air compressor is one of the most important components. As shown in Figure 1, the main shaft 1 is installed inside the support body 2. One end of the main shaft is keyed to a pulley 3, which is connected to a motor via a belt, and the motor transmits power. The other end (the eccentric wheel end of the main shaft) is connected to the core of the moving disc assembly 4 via a cylindrical roller bearing 5. The eccentric wheel of the main shaft 1 has oil passage holes, namely a horizontal hole 6 and a vertical hole 7 that are vertically connected. The port of the vertical hole 7 is connected to the grease gun nozzle 8 (see Figure 2-3). When grease needs to be added, the grease gun nozzle is aligned with the grease injection nozzle, and the grease is injected by squeezing the grease gun. The grease enters from the grease injection nozzle, passes through the vertical hole and then through the horizontal hole, and finally enters the cylindrical roller bearing in the core hole of the moving disc assembly.

[0003] The purpose of this oil passage hole is to effectively replenish the grease in the cylindrical roller bearings of the moving plate assembly core during the use and maintenance of the air compressor.

[0004] However, this oil passage design has significant drawbacks. Since the air compressor spindle is installed inside the support housing, it's typically only necessary to fill the cylindrical roller bearings in the core of the moving disc assembly with grease before assembling the entire air compressor. After assembly, adding grease requires inserting the grease gun nozzle into the grease hole in the support housing and then rotating the air compressor spindle until the nozzle aligns with the grease fitting on the spindle. This operation is performed in a closed environment, and since scroll air compressors are usually installed inside a housing, this makes the operation even more difficult, sometimes even requiring disassembly for grease filling, greatly impacting the maintenance of the air compressor head.

[0005] Utility Model Content

[0006] The purpose of this utility model is to provide a main shaft mechanism for a scroll air compressor to solve the technical problems existing in the background art.

[0007] This utility model provides a main shaft mechanism for a scroll air compressor, including a main shaft body, a pulley at one end of the main shaft body, a core elongated hole through the middle of the main shaft body, a connector detachably provided on the main shaft body near the pulley, the connector communicating with the core elongated hole, and an oil injection nozzle provided on the connector.

[0008] In a preferred embodiment, the connector is threadedly connected to the spindle body.

[0009] In a preferred embodiment, the connector includes a hollow bolt, and the spindle body is provided with an end thread structure, wherein the hollow bolt is threadedly connected to the spindle body.

[0010] In a preferred embodiment, the oil nozzle is threadedly connected to the hollow bolt.

[0011] In a preferred embodiment, the hollow bolt has a threaded opening, and one end of the oil injection nozzle is screwed into the threaded opening.

[0012] The beneficial effects of this utility model's technical solution are:

[0013] This solution improves the main shaft mechanism of the air compressor and modifies the oil injection channel structure. The oil injection nozzle connected to the main shaft mechanism of the air compressor is designed to be on the outside of the air compressor, making the oil injection operation very convenient and providing a guarantee for subsequent machine head maintenance. Attached Figure Description

[0014] Figure 1 shows a schematic diagram of the spindle assembly on the scroll air compressor before the improvement.

[0015] Figure 2 shows a schematic diagram of the spindle before the improvement.

[0016] Figure 3 is a schematic diagram of the interior of the scroll air compressor support.

[0017] Figure 4 is a schematic diagram of the overall structure of this utility model.

[0018] Figure 5 is a schematic diagram of the main shaft structure of this utility model.

[0019] Figure 6 is a schematic diagram of the hollow bolt structure of this utility model.

[0020] Figure 7 shows the location of the oil nozzle of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Main spindle body, 2. Pulley, 3. Core long hole, 4. End thread structure, 5. Hollow bolt, 6. Threaded opening, 7. Oil nozzle. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0023] As shown in Figures 4-7, the present invention provides a main shaft mechanism for a scroll air compressor, including a main shaft body 1, a pulley 2 at one end of the main shaft body 1, a core long hole 3 through the middle of the main shaft body 1, a connector detachably provided on the main shaft body 1 near the pulley 2, the connector communicating with the core long hole 3, and an oil nozzle 7 provided on the connector.

[0024] The connector connects the grease nozzle 7 to the main shaft body 1. In this design, the grease nozzle 7 is located outside the air compressor. During grease injection, the grease gun nozzle is aligned with the grease nozzle 7, and grease is injected by squeezing the grease gun. The grease enters from the grease nozzle 7, passes through the core elongated hole 3, and finally enters the cylindrical roller bearing in the core hole of the moving disc assembly. Because the grease nozzle 7 connected to the main shaft mechanism of the improved air compressor is designed to be outside the entire air compressor (as shown in Figure 7), the grease injection operation is very convenient, providing a guarantee for subsequent head maintenance.

[0025] The connector is threadedly connected to the spindle body 1. The connector includes a hollow bolt 5, and the spindle body 1 has an end thread structure 4. The hollow bolt 5 is threadedly connected to the spindle body 1. The grease nipple 7 is threadedly connected to the hollow bolt 5. The hollow bolt 5 has a threaded opening 6, and one end of the grease nipple 7 is screwed into the threaded opening 6.

[0026] The hollow bolt 5 is connected to the end thread structure 4 inside the spindle body 1, forming a passage from the grease nipple 7 to the core bore 3, ensuring that the grease can smoothly pass through the core bore 3 to reach the cylindrical roller bearing. At the same time, the connecting parts and the grease nipple are detachable, which facilitates assembly and maintenance.

[0027] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A spindle mechanism for a scroll air compressor, characterized in that: The device includes a spindle body, a pulley at one end of the spindle body, a core elongated hole through the middle of the spindle body, a connector detachably provided on the spindle body near the pulley end, the connector communicating with the core elongated hole, and an oil injection nozzle provided on the connector.

2. The main shaft mechanism of a scroll air compressor according to claim 1, characterized in that: The connector is threadedly connected to the main shaft body.

3. The main shaft mechanism of a scroll air compressor according to claim 1, characterized in that: The connector includes a hollow bolt, and the spindle body is provided with an end thread structure, wherein the hollow bolt is threadedly connected to the spindle body.

4. The main shaft mechanism of a scroll air compressor according to claim 3, characterized in that: The oil nozzle is threadedly connected to the hollow bolt.

5. The main shaft mechanism of a scroll air compressor according to claim 3, characterized in that: The hollow bolt has a threaded opening, and one end of the oil injection nozzle is screwed into the threaded opening.

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