CN113217391A

CN113217391A - Horizontal compressor with oil pumping mechanism and working steps thereof

Info

Publication number: CN113217391A
Application number: CN202110650991.8A
Authority: CN
Inventors: 刘忠赏; 孙力; 孙丽艳; 杨凯; 刘璐
Original assignee: Panasonic Appliances Compressor Dalian Co Ltd
Current assignee: Panasonic Appliances Compressor Dalian Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-08-06
Anticipated expiration: 2041-06-09
Also published as: CN113217391B

Abstract

The invention provides a horizontal compressor with an oil pumping mechanism and working steps thereof, wherein the horizontal compressor comprises the following steps: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and an air cylinder assembly, and the air cylinder assembly is arranged on the crankshaft assembly; the front port of the oil pumping part is connected with the cylinder assembly, and the rear port of the oil pumping part is connected with the oil channel of the crankshaft assembly.

Description

Horizontal compressor with oil pumping mechanism and working steps thereof

Technical Field

The invention relates to the technical field of refrigeration compressors, in particular to a horizontal compressor with an oil pumping mechanism and working steps of the horizontal compressor.

Background

According to different placing modes, the compressor can be divided into a vertical compressor with a vertically placed crankshaft and a horizontal compressor with a horizontally placed crankshaft. Horizontal compressors are commonly used in buses, subways, trains, display cases, and other applications where the height is limited.

The oil pumping system is not complicated for the vertical compressor, the refrigerating machine oil can be conveyed to the lubricating part through a simple oil suction pipe under the action of centrifugal force, the refrigerating machine oil of the compressor is mainly concentrated at the bottom of the compressor, most of the refrigerating machine oil can be conveyed through the oil suction pipe, a lot of invalid refrigerating machine oil does not exist, even if the compressor has a certain inclination angle, the oil pumping capacity cannot be greatly influenced, and therefore the oil pumping system does not need to worry about the reliability of the vertical compressor.

For the horizontal compressor, the refrigerating machine oil is spread on the lower part of the whole compressor, and the oil level in the horizontal compressor is obviously lower than that in the vertical compressor with the same oil amount, so the oil pumping system of the horizontal compressor needs to be well designed. Under the normal condition, the oil level near the oil suction pipe needs to be improved through design, the oil level is guaranteed to exceed the bottom of the oil suction pipe under various extreme conditions, the oil suction pipe can suck refrigerating machine oil, and the compressor is guaranteed to be reliable in lubrication and reliable in operation. However, since the horizontal compressor is usually applied in a special field, the compressor has a large inclination angle, the position of the oil surface changes in the compressor, the height of the oil surface near the oil suction pipe is difficult to ensure, the oil surface completely deviates from the oil suction pipe component under extreme conditions, the oil suction pipe cannot suck the refrigerating machine oil well, the mechanical component cannot be lubricated, and the compressor cannot normally operate.

Therefore, it is necessary to design a horizontal compressor with an oil pumping mechanism and its working steps.

Disclosure of Invention

According to the technical problem that mechanical parts cannot be lubricated due to the fact that the existing horizontal compressor cannot well absorb the refrigerating machine oil, the horizontal compressor with the oil pumping mechanism and the working steps of the horizontal compressor are provided. The invention mainly utilizes the oil pumping mechanism which is arranged on the horizontal compressor and can absorb lubricating oil with different liquid levels, thereby playing the role of effectively lubricating mechanical parts in the horizontal compressor.

The technical means adopted by the invention are as follows:

a horizontal compressor with an oil pumping mechanism is characterized by comprising: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and an air cylinder assembly, and the air cylinder assembly is arranged on the crankshaft assembly; the front end opening of the oil pumping part is connected with the cylinder assembly, and the rear end opening of the oil pumping part is connected with an oil channel of the crankshaft assembly.

Further, the cylinder assembly comprises an air suction component, an exhaust component, a lower support component, a first-stage cylinder, a middle support component, a second-stage cylinder and an upper support component, the second-stage cylinder, the middle support component, the first-stage cylinder and the lower support component are sequentially arranged on the crankshaft assembly, the air suction component and the exhaust component are arranged on the compressor shell and connected with the cylinder assembly in the compressor shell, an exhaust chamber is arranged on the lower support component, and the front end of the oil pumping part is connected with the exhaust chamber.

Further, the oil pumping part is a tubular oil pumping part, the tubular oil pumping part is of a one-section or multi-section tubular structure, and when the tubular oil pumping part is of a multi-section tubular structure, the multi-section tubular structure is nested with each other.

Further, when the tubular oil pumping component is a multi-section tubular structure, one or more oil absorption gaps are arranged between the mutually nested multi-section tubular structures.

Furthermore, the tubular oil pumping component is provided with one or more oil suction holes, and the shape of the oil suction holes is circular, oval, various through hole shapes and the like.

The invention also provides a working step of the horizontal compressor with the oil pumping mechanism, which is characterized by comprising the following working steps:

step S1: refrigerant enters a primary cylinder from the suction part, is compressed in the primary cylinder and is discharged through a discharge valve on the lower support part;

step S2: the discharged refrigerant enters the oil pumping part, a part of the refrigerating machine oil can be in the oil pumping part due to the oil suction hole on the oil pumping part, and the flowing refrigerant can drive the refrigerating machine oil to enter the oil channel of the crankshaft assembly to flow in the crankshaft part and enter the lubricating surface of each mechanical part, so that the reliable operation of the compressor is protected;

step S3: the refrigerant continues to enter the secondary cylinder, the primary cylinder and the secondary cylinder are isolated by the middle support part, the refrigerant continues to be compressed in the secondary cylinder, and the refrigerant is discharged out of the compressor through the exhaust part arranged on the upper support part.

Compared with the prior art, the invention has the following advantages:

1. according to the horizontal compressor with the oil pumping mechanism and the working steps of the horizontal compressor, the oil pumping mechanism is arranged, the oil suction holes are formed in the oil pumping mechanism, the refrigerating machine oil in the oil pumping mechanism is conveyed through the flowing of the refrigerant, the refrigerating machine oil can be stably conveyed under any working condition, the conveying of the refrigerant is more reliable than that of a conventional mechanical oil pumping mechanism, the refrigerant is not prone to damage, the mobility is higher, and the operation of the compressor is more reliable.

2. The invention provides a horizontal compressor with an oil pumping mechanism and a working step thereof.A plurality of oil suction holes are arranged on the oil pumping mechanism, oil pumping parts can be arranged in the whole shell of the compressor, the oil suction holes can be arranged at any position, refrigerating machine oil can enter the oil pumping parts at any oil surface position, and especially when the compressor is inclined, the oil suction holes can still be positioned below the oil surface and still suck the refrigerating machine oil. Meanwhile, the oil pumping component can be divided into two parts, gaps are reserved at the two mounting positions, the refrigerating machine oil can easily enter the gap, the flow of the refrigerant is controlled through the size of the gap so as to control the oil pumping capacity of the oil pumping component, a large amount of refrigerating machine oil cannot enter a lubricating surface, the refrigerant does not need to completely circulate through the crankshaft component, and a part of refrigerant circulates through other channels so as to reduce the circulation resistance.

In conclusion, the technical scheme of the invention can solve the problem that the existing horizontal compressor is unstable in oil pumping in the operation process, and the oil pumping mechanism is designed, the oil pumping mechanism is provided with the plurality of oil suction holes, so that the refrigerating machine oil can be sucked under different oil surfaces and conveyed to a lubricating position, the oil pumping mechanism can convey the refrigerating machine oil under normal conditions, and the oil pumping mechanism can still stably convey the refrigerating machine oil under extreme conditions such as inclination of the compressor, so that the compressor can stably operate.

Based on the reasons, the invention can be widely popularized in the technical fields of refrigeration compressors and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram i of a horizontal compressor with an oil pumping mechanism and working steps thereof according to the present invention.

Fig. 2 is a schematic structural diagram i of an oil pumping component of a horizontal compressor with an oil pumping mechanism and working steps of the horizontal compressor.

Fig. 3 is a schematic structural diagram ii of a horizontal compressor with an oil pumping mechanism and its working steps according to the present invention.

Fig. 4 is a schematic structural diagram ii of an oil pumping component of a horizontal compressor with an oil pumping mechanism and the working steps thereof according to the present invention.

Fig. 5 is a schematic structural diagram iii of an oil pumping component of a horizontal compressor with an oil pumping mechanism and the working steps thereof according to the present invention.

In the figure: 100. an air suction member; 200. a lower support member; 201. an exhaust chamber; 300. a primary cylinder; 400. a middle support member; 500. a secondary cylinder; 600. an upper support member; 700. a crankshaft component; 701. an oil passage; 800. an oil pumping part; 801. a front port; 802. a rear port; 803. an oil suction hole I; 804. an oil suction hole II; 805. an oil absorption component I; 806. an oil absorption component II; 807. an oil suction hole III; 808. a pipe orifice I; 809. a pipe orifice II; 810. an oil absorption gap; 900. an exhaust component.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 5, the present invention provides a horizontal type compressor having an oil pumping mechanism, comprising: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and an air cylinder assembly, and the air cylinder assembly is arranged on the crankshaft assembly; the front port 801 of the oil pumping part is connected with the cylinder assembly, and the rear port 802 of the oil pumping part is connected with the oil channel 701 of the crankshaft assembly; the cylinder assembly comprises an air suction component 100, an exhaust component 900, a lower support component 200, a first-stage cylinder 300, a middle support component 400, a second-stage cylinder 500 and an upper support component 600, wherein the upper support component 600, the second-stage cylinder 500, the middle support component 400, the first-stage cylinder 300 and the lower support component 200 are sequentially arranged on the crankshaft assembly, the air suction component 100 and the exhaust component 900 are arranged on the compressor shell and are connected with the cylinder assembly in the compressor shell, an exhaust chamber 201 is arranged on the lower support component, and the front end of an oil pumping part is connected with the exhaust chamber 201; the oil pumping part is a tubular oil pumping part 800, the tubular oil pumping part 800 is a one-section or multi-section tubular structure, and when the tubular oil pumping part 800 is a multi-section tubular structure, the multi-section tubular structure is nested with each other; when the tubular oil pumping component 800 is a multi-section tubular structure, one or more oil absorption gaps 810 are arranged between the multi-section tubular structures which are nested with each other; the tubular oil pumping part 800 is provided with one or more oil suction holes, and the shape of the oil suction hole is circular, oval, various through holes, and the like.

step S1: refrigerant enters a primary cylinder from the suction part 100, is compressed in the primary cylinder 300, and is discharged through a discharge valve on the lower support part 200;

step S2: the discharged refrigerant enters the oil pumping part 800, a part of the refrigerator oil can be in the oil pumping part 800 due to the oil suction hole on the oil pumping part 800, and the flowing refrigerant can drive the refrigerator oil to enter the oil channel 701 of the crankshaft assembly to flow in the crankshaft part 700 and enter the lubricating surface of each mechanical part, so that the reliable operation of the compressor is protected;

step S3: the refrigerant continues to enter the secondary cylinder 500, the primary cylinder 300 and the secondary cylinder 500 are isolated by the middle support member 400, the refrigerant continues to be compressed in the secondary cylinder 500, and is discharged out of the compressor through the discharge member 900 mounted on the upper support member 600.

Example 1

As shown in fig. 1, the present invention provides a horizontal compressor with an oil pumping mechanism, which comprises a gas suction component 100, a gas discharge component 900, and a lower support component 200, a first-stage cylinder 300, a middle support component 400, a second-stage cylinder 500, an upper support component 600, a crankshaft component 700 and an oil pumping component 800 which are arranged inside the compressor, wherein the lower support component 200, the first-stage cylinder 300, the middle support component 40), the second-stage cylinder 500 and the upper support component 600 are connected together and sleeved on the crankshaft component 700, the gas suction component 100 extends from the inside of the compressor, and the gas discharge component 900 extends from the other side inside of the compressor. Because the crankshaft part 700 runs, all mechanical parts sleeved on the crankshaft part 700 need to be lubricated, so that oil pumping lubrication is very important;

as shown in fig. 2, the lower support member 200 has an exhaust chamber 201, a front port 801 of the oil pumping member 800 is connected to the exhaust chamber 201, and a rear port 802 is connected to an oil passage 701 of the crankshaft member 700; the oil pumping part 800 is provided with an oil suction hole I803, refrigerant discharged from the first-stage cylinder 300 enters the exhaust chamber 201 of the lower support part 200, the refrigerant enters the oil pumping part 800 through a port A of the oil pumping part 800, the refrigerant flows in the oil pumping part 800 and enters the crankshaft part 700 through a port B and an oil channel 701 of the crankshaft part 700, in the process, as one or more oil suction holes I803 are formed in the oil pumping part 800, the refrigerating machine oil enters the oil pumping part 800 through the oil suction hole I803, the refrigerant flowing in the oil pumping part 800 drives the refrigerating oil entering the oil suction hole A803 to be conveyed into the crankshaft part 700, and finally lubricates the lower support part 200, the first-stage cylinder 300, the middle support part 400, the second-stage cylinder 500 and the upper support part 600, and the operation of the compressor is ensured to be more reliable.

In this embodiment, one or more oil suction holes i 803 are formed, the shape of which may be circular, oval, or various through holes, and the oil suction holes i 803 are formed at different heights of the oil pumping member 800. The oil pumping part 800 is provided with a plurality of oil suction holes I803, the oil pumping part 800 can be arranged in the whole shell of the compressor, the oil suction holes I803 can be arranged at any position, the refrigerating machine oil can enter the oil pumping part 800 at any oil surface position, and especially when the compressor is inclined, the oil suction holes I803 can still be positioned below the oil surface and still can suck the refrigerating machine oil.

Example 2

As shown in fig. 3, the present invention provides a horizontal compressor with an oil pumping mechanism, wherein a lower support member 200 is provided with an exhaust chamber 201, a front port 801 of an oil pumping member 800 is connected with the exhaust chamber 201, and a rear port 802 is connected with an oil passage 701 of a crankshaft member 700. The refrigerant discharged from the first-stage cylinder 300 is introduced into the discharge chamber 201 of the lower support member 200, and this portion of the refrigerant is introduced into the oil pumping member 800 through the front port 801 of the oil pumping member 800, and the refrigerant flows in the oil pumping member 800 into the crank member 700 through the rear port 802 and the oil passage 701 of the crank member 700.

As shown in FIG. 4, the oil pumping component 800 can be divided into an oil suction component I805 and an oil suction component II 806, wherein a pipe orifice I808 of the oil suction component I805 is inserted into a pipe orifice II 809 of the oil suction component B806, and an oil suction gap 810 is reserved. Refrigerating machine oil can easily get into pump oil part 800 by oil absorption gap 810, and go to control the flow of refrigerant with the pump oil ability of control pump oil part 800 through the size of gap 810, can not have a large amount of refrigerating machine oil and get into lubricated surface, the refrigerant also need not all circulate through bent axle part 700 simultaneously, some refrigerant circulate through other passageways, reduce the circulation resistance, so both can obtain reliable pump oil ability, reduce compressor efficiency again and influence, the compressor can more reliably operate steadily.

Example 3

As shown in FIG. 5, the oil pumping component 800 can be divided into an oil suction component I805 and an oil suction component II 806, wherein a pipe orifice I808 of the oil suction component I805 is inserted into a pipe orifice II 809 of the oil suction component B806, and an oil suction gap 810 is reserved. Refrigerator oil can easily get into pump oil part 800 by oil absorption gap 810, and go to control the flow of refrigerant with the pump oil ability of control pump oil part 800 through the size of gap 810, can not have a large amount of refrigerator oil entering lubricated surface, the refrigerant also need not all circulate through bent axle part 700 simultaneously, some refrigerant circulate through other passageways, reduce the circulation resistance, so both can obtain reliable pump oil ability, reduce compressor efficiency influence again, the compressor can more reliably operate steadily, set up oil absorption hole II 804 on the oil absorption subassembly I805 simultaneously, set up oil absorption hole III 807 on the oil absorption subassembly II 806. One or more oil suction holes II 804 and III 807 are formed, the shape can be circular, oval and various through hole shapes, and the like, and the oil suction hole I803 is formed in the oil suction assembly I805 and the oil suction assembly II 806 at different heights, so that the refrigerating machine oil can enter the oil pumping part 800 at any oil surface position, and particularly when the compressor is inclined, the oil suction hole I803 can still be positioned below the oil surface and still can suck the refrigerating machine oil.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A horizontal compressor with an oil pumping mechanism is characterized by comprising: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and an air cylinder assembly, and the air cylinder assembly is arranged on the crankshaft assembly; the front end opening of the oil pumping part is connected with the cylinder assembly, and the rear end opening of the oil pumping part is connected with an oil channel of the crankshaft assembly.

2. The horizontal compressor with the oil pumping mechanism according to claim 1, wherein the cylinder assembly comprises an air suction component, an air discharge component, a lower support component, a primary cylinder, a middle support component, a secondary cylinder and an upper support component, the secondary cylinder, the middle support component, the primary cylinder and the lower support component are sequentially arranged on the crankshaft assembly, the air suction component and the air discharge component are arranged on the compressor shell and connected with the cylinder assembly inside the compressor shell, an air discharge chamber is arranged on the lower support component, and the front end of the oil pumping part is connected with the air discharge chamber.

3. The horizontal compressor with an oil pumping mechanism according to claim 1, wherein the oil pumping part is a tubular oil pumping member having a one-stage or multi-stage tubular structure, and when the tubular oil pumping member has a multi-stage tubular structure, the multi-stage tubular structure is nested with each other.

4. The horizontal compressor with the oil pumping mechanism according to claim 3, wherein when the tubular oil pumping part is a multi-segment tubular structure, one or more oil suction gaps are arranged between the multi-segment tubular structures which are nested with each other.

5. The horizontal compressor with oil pumping mechanism as claimed in claim 3, wherein the tubular oil pumping member is provided with one or more oil suction holes, and the oil suction holes are circular, elliptical and various through hole shapes.

6. An operation step of a horizontal type compressor having an oil pumping mechanism according to any one of claims 1 to 5, comprising: