Lubricating device for crankcase of compressor

Abstract

The compressor crankcase lubricating device comprises an oil storage pipe, the outer top of the oil storage pipe is fixedly connected with an electric push rod, the telescopic end of the electric push rod penetrates through the oil storage pipe and is fixedly connected with a piston, one side of the outer wall of the oil storage pipe is in threaded connection with an end cover, and the center of the end cover is fixedly connected with a motor. The motor driving shaft penetrates through the oil storage pipe and is fixedly connected with a rotating shaft, and a through hole is formed in the center of the rotating shaft. According to the utility model, the oil storage pipes, the oil injection pipe and the oil supply pipe are matched with one another, and the plurality of oil storage pipes are uniformly distributed outside the crankcase, so that lubricating oil can be injected into the crankcase from a plurality of angles, the oil can be more quickly distributed to most areas in the crankcase, the lubricating efficiency of the oil is greatly improved, and the service life of the crankcase is prolonged. And meanwhile, aiming at different crankshaft part positions, oil liquid with different components can be injected, so that the oil liquid is more uniformly and fully distributed, and the lubricating effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor crankcase auxiliary equipment, in particular to a compressor crankcase lubrication device. Background Art

[0002] A compressor, a driven fluid machine that boosts low-pressure gas to high-pressure, is the heart of the refrigeration system. It draws low-temperature, low-pressure refrigerant gas from the intake pipe, compresses it through the motor-driven piston, and discharges high-temperature, high-pressure refrigerant gas through the exhaust pipe, powering the refrigeration cycle. The compressor's crankcase requires lubrication during operation to reduce mechanical friction and wear, lower temperatures, and minimize power consumption.

[0003] Currently, when injecting lubricating oil into the crankcase of the compressor, a fixed amount of lubricating oil is usually poured in through the crankcase oil filling port, so that it is gradually distributed to various parts of the crankshaft as the crankshaft rotates. This process takes a long time. At the same time, before the crankshaft is completely lubricated, some parts of the crankshaft are in operation, which will also increase the wear and tear of the parts.

[0004] Therefore, we propose to design a compressor crankcase lubrication device. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A compressor crankcase lubrication device includes an oil storage pipe, an electric push rod is fixedly connected to the outer top of the oil storage pipe, the telescopic end of the electric push rod passes through the oil storage pipe and is fixedly connected to a piston, an end cover is threadedly connected to one side of the outer wall of the oil storage pipe, a motor is fixedly connected to the center of the end cover, the motor drive shaft passes through the oil storage pipe and is fixedly connected to a rotating shaft, a through hole is opened at the center of the rotating shaft, a limit frame corresponding to the rotating shaft is fixedly connected to the bottom of the oil storage pipe, an oil supply pipe is fixedly connected to the outer wall of the oil storage pipe, and an oil filling pipe is fixedly connected to the bottom of the oil storage pipe.

[0008] As a preferred solution of a compressor crankcase lubrication device described in the utility model, the top and bottom of the limit frame are penetrated by through holes, the rotating shaft passes through the limit frame, and the through holes correspond to the positions of the through holes. By rotating the rotating shaft so that the through holes are vertically arranged, they can be connected to the corresponding through holes, which is convenient for the discharge and transportation of oil.

[0009] As a preferred solution of the compressor crankcase lubrication device described in the utility model, a one-way valve is provided at one end of the oil supply pipe close to the inside of the oil storage pipe to prevent oil backflow, and a sealing cap is threadedly connected to the outer end of the oil supply pipe. When lubricating oil needs to be added, the sealing cap is unscrewed to facilitate the corresponding connection between the oil supply pipe and the external pipeline.

[0010] As a preferred solution of the compressor crankcase lubrication device described in the present invention, the outer side wall of the oil storage pipe is provided with scale markings, which facilitates intuitive control of the oil amount in the oil storage pipe and facilitates quantitative oil filling.

[0011] As a preferred solution of the compressor crankcase lubrication device described in the utility model, the oil storage pipe is fixedly connected to the peripheral side of the crankcase, the oil filling pipe passes through the crankcase and extends into the interior thereof, and multiple oil storage pipes are provided on the peripheral side of the crankcase, which is convenient for flexibly injecting different amounts of lubricating oil according to different positions of the crankshaft in the crankcase to improve the lubrication effect.

[0012] As a preferred solution of the compressor crankcase lubrication device described in the utility model, a pressure plate is provided at the bottom of the oil filling pipe, a guide rod is fixedly connected to the top of the pressure plate, a guide groove corresponding to the guide rod is opened inside the wall of the oil filling pipe, and a spring is fixedly connected between the guide rod and the guide groove. When the pressure in the oil storage pipe increases during oil filling, it is convenient to squeeze the spring to push out the pressure plate. At this time, the oil can be sprayed into the crankcase through the gap between the pressure plate and the pipe mouth of the oil filling pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model cooperates with the oil storage pipe, the oil filling pipe and the oil supply pipe, and has multiple oil storage pipes evenly distributed outside the crankcase, so that lubricating oil can be injected into the crankcase from multiple angles, thereby distributing the oil to most areas in the crankcase more quickly, greatly improving the lubrication efficiency of the oil. At the same time, different amounts of oil can be injected according to the positions of different crankshaft parts, making the oil distribution more uniform and sufficient, thereby greatly improving the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0016] Figure 1 This is a three-dimensional diagram of a compressor crankcase lubrication device according to the present utility model;

[0017] Figure 2 This is a structural schematic diagram of a compressor crankcase lubrication device of the utility model;

[0018] Figure 3 This is a crankcase installation schematic diagram of a compressor crankcase lubrication device of the present invention.

[0019] Legend: 1. Oil storage pipe; 2. Electric push rod; 3. Piston; 4. End cover; 5. Motor; 6. Rotating shaft; 7. Through hole; 8. Limiting frame; 801, Through hole; 9. Oil supply pipe; 10. Sealing cover; 11. Scale mark; 12. Oil filling pipe; 13. Pressure plate; 14. Guide rod; 15. Spring. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0023] See also Figure 1-3 The utility model provides a compressor crankcase lubrication device, including an oil storage pipe 1. The outer wall of the oil storage pipe 1 is provided with a scale mark 11, which is convenient for intuitive control of the oil amount in the oil storage pipe 1 and convenient for quantitative oil filling.

[0024] An electric push rod 2 is fixedly connected to the top of the oil storage pipe 1. The telescopic end of the electric push rod 2 passes through the oil storage pipe 1 and is fixedly connected to the piston 3. An end cover 4 is threadedly connected to one side of the outer wall of the oil storage pipe 1. A motor 5 is fixedly connected to the center of the end cover 4. The driving shaft of the motor 5 passes through the oil storage pipe 1 and is fixedly connected to the rotating shaft 6. A through hole 7 is opened at the center of the rotating shaft 6. A limit frame 8 corresponding to the rotating shaft 6 is fixedly connected to the bottom of the oil storage pipe 1.

[0025] A through hole 801 is provided at the top and bottom of the limiting frame 8, and the rotating shaft 6 passes through the limiting frame 8. The through hole 7 corresponds to the position of the through hole 801. By rotating the rotating shaft 6 so that the through hole 7 is vertically set, it can be connected with the through hole 801, which is convenient for the discharge and transportation of oil.

[0026] An oil supply pipe 9 is fixedly connected to the outer wall of the oil storage pipe 1. A one-way valve is provided at one end of the oil supply pipe 9 close to the inside of the oil storage pipe 1 to prevent oil backflow. A sealing cap 10 is threadedly connected to the outer end of the oil supply pipe 9. When lubricating oil needs to be added, the sealing cap 10 is unscrewed to facilitate the corresponding connection between the oil supply pipe 9 and the external pipeline.

[0027] An oil filling pipe 12 is fixedly connected to the bottom of the oil storage pipe 1, and the oil storage pipe 1 is fixedly connected to the peripheral side of the crankcase. The oil filling pipe 12 passes through the crankcase and extends into the interior thereof. Multiple oil storage pipes 1 are provided on the peripheral side of the crankcase, which facilitates the flexible injection of different amounts of lubricating oil according to the different positions of the crankshaft in the crankcase to improve the lubrication effect.

[0028] In this embodiment, a pressure plate 13 is provided at the bottom of the oil filling pipe 12, and a guide rod 14 is fixedly connected to the top of the pressure plate 13. A guide groove corresponding to the guide rod 14 is opened inside the wall of the oil filling pipe 12, and a spring 15 is fixedly connected between the guide rod 14 and the guide groove. When the pressure in the oil storage pipe 1 increases during oil filling, it is convenient to squeeze the spring 15 to push out the pressure plate 13. At this time, the oil can be sprayed into the crankcase through the gap between the pressure plate 13 and the pipe mouth of the oil filling pipe 12. At the same time, when the crankcase is operating normally, the pressure plate 13 is closed to prevent the oil from flowing back.

[0029] When in use, first open the sealing cover 10 to connect the oil pipeline with the oil supply pipe 9, then start the electric push rod 2 to drive the piston 3 to contract, and draw the oil from the oil supply pipe 9 into the oil storage pipe 1. As the piston 3 rises, the staff can intuitively see the amount of oil sucked in through the scale mark 11. Similarly, the staff can also numerically control the stroke of the electric push rod 2 through PLC programming, so as to more accurately control the amount of oil sucked in.

[0030] After the oil is sucked in, the starting motor 5 drives the rotating shaft 6 to rotate, so that the through hole 7 is connected to the through hole 801, and then the electric push rod 2 is started to drive the piston 3 to descend, and the oil is discharged from the oil filling pipe 12. When the pressure in the oil storage pipe 1 increases during oil filling, it is convenient to squeeze the spring 15 to push out the pressure plate 13. At this time, the oil can be sprayed into the crankcase through the gap between the pressure plate 13 and the pipe mouth of the oil filling pipe 12.

[0031] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A compressor crankcase lubrication device, comprising an oil storage pipe (1), characterized in that: The outer top of the oil storage pipe (1) is fixedly connected to an electric push rod (2), the telescopic end of the electric push rod (2) passes through the oil storage pipe (1) and is fixedly connected to a piston (3), one side of the outer wall of the oil storage pipe (1) is threadedly connected to an end cover (4), the center of the end cover (4) is fixedly connected to a motor (5), the drive shaft of the motor (5) passes through the oil storage pipe (1) and is fixedly connected to a rotating shaft (6), the center of the rotating shaft (6) is provided with a through hole (7), the inner bottom of the oil storage pipe (1) is fixedly connected to a limit frame (8) corresponding to the rotating shaft (6), the outer wall of the oil storage pipe (1) is fixedly connected to an oil supply pipe (9), and the bottom of the oil storage pipe (1) is fixedly connected to an oil filling pipe (12).

2. A compressor crankcase lubrication device according to claim 1, characterized in that: The top and bottom of the limiting frame (8) are penetrated by through holes (801), the rotating shaft (6) penetrates the limiting frame (8), and the through hole (7) corresponds to the position of the through hole (801).

3. A compressor crankcase lubrication device according to claim 1, characterized in that: A one-way valve is provided at one end of the oil supply pipe (9) close to the interior of the oil storage pipe (1), and a sealing cover (10) is threadedly connected to the outer end of the oil supply pipe (9).

4. A compressor crankcase lubrication device according to claim 1, characterized in that: The outer side wall of the oil storage pipe (1) is provided with a scale mark (11).

5. The compressor crankcase lubrication device according to claim 1, characterized in that: The oil storage pipe (1) is fixedly connected to the peripheral side of the crankcase, and the oil injection pipe (12) passes through the crankcase and extends into the interior thereof.

6. A compressor crankcase lubrication device according to claim 1, characterized in that: A pressure plate (13) is provided at the bottom of the oil filling pipe (12), a guide rod (14) is fixedly connected to the top of the pressure plate (13), a guide groove corresponding to the guide rod (14) is opened inside the wall of the oil filling pipe (12), and a spring (15) is fixedly connected between the guide rod (14) and the guide groove.

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