Crankshaft of oil pumping structure and compressor

Abstract

The crankshaft of the oil pumping structure comprises an eccentric shaft and a long shaft, a balance portion is arranged between the eccentric shaft and the long shaft, an oil supply channel is arranged in the long shaft, an oil pumping groove inlet communicated with the oil supply channel is formed in the side wall of the long shaft, and an oil pumping groove is formed in the oil pumping groove inlet. An oil pumping groove outlet is formed in the side wall of the end, away from the oil pumping groove inlet, of the oil supply channel, the oil pumping groove outlet is communicated with a spiral oil groove, and an oil pumping spiral groove is formed in the inner side wall of the oil supply channel; through the optimized and improved design of the oil pumping spiral groove, the spiral groove with the specific specification is additionally arranged in the oil pumping spiral groove, so that lubricating oil can be uniformly and continuously supplied to a part needing to be lubricated, and the beneficial effects of improving the operation efficiency and reliability of the compressor, ensuring the normal operation of the compressor and prolonging the service life of the compressor are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor crankshafts, in particular to a crankshaft with an oil pump structure and a compressor. Background Art

[0002] The compressor is a core component of the refrigeration system, and its operating efficiency directly impacts its performance. The critical crankshaft is prone to wear from prolonged rotation, necessitating effective crankshaft lubrication. Oil grooves are located along the crankshaft to direct lubricating oil from the oil sump or lubricating oil supply system to components such as bearings and connecting rods as the crankshaft rotates.

[0003] The principle of guiding lubricating oil mainly relies on the centrifugal force and gravity of the oil groove on the crankshaft, as well as the balance of oil pressure and air pressure in the system.

[0004] However, the pump oil tank design in the existing technology is mostly a straight-cylinder inner cavity type. The traditional straight-cylinder inner cavity type has problems such as uneven lubricating oil guidance and insufficient continuous and stable supply, which in turn causes the parts that need lubrication to be unable to be effectively lubricated, reducing the operating efficiency and reliability of the compressor. Utility Model Content

[0005] In response to the above technical problems in the related art, the present invention proposes a crankshaft with an oil pump structure, which can overcome the above deficiencies in the prior art.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0007] A crankshaft with an oil pumping structure;

[0008] The crankshaft of the oil pumping structure includes an eccentric shaft and a long shaft, a balancing part is provided between the eccentric shaft and the long shaft, an oil supply channel is provided in the long shaft, an oil pumping groove inlet connected to the oil supply channel is provided on the side wall of the long shaft, an oil pumping groove outlet is provided on the side wall of the oil supply channel away from the oil pumping groove inlet, the oil pumping groove outlet is connected to the spiral oil groove, and an oil pumping spiral groove is provided on the inner side wall of the oil supply channel.

[0009] Furthermore, the spiral oil groove is connected to the eccentric oil hole through an oblique through hole at one end thereof adjacent to the balancing portion.

[0010] Furthermore, a spiral oil groove oil outlet is provided at the connection point between the spiral oil groove and the oblique through hole.

[0011] Optionally, the oil pump spiral groove opened on the inner side wall of the oil supply channel is a triangular spiral groove.

[0012] Optionally, the width of the triangular spiral groove is 1-3 mm and the depth is 0.5-2 mm; the pitch of the triangular spiral groove is greater than or equal to the height of the oil supply channel.

[0013] Optionally, the oil pumping spiral groove opened on the inner side wall of the oil supply channel is an arc-shaped spiral groove.

[0014] Optionally, the width of the arc-shaped spiral groove is 1-3 mm and the depth is 0.5-2 mm; the pitch of the arc-shaped spiral groove is less than or equal to the height of the oil supply channel.

[0015] Furthermore, the rotation direction of the oil pump spiral groove is consistent with the running direction of the compressor.

[0016] According to another aspect of the present invention, a compressor is provided;

[0017] The compressor includes a crankshaft with the above-mentioned oil pumping structure.

[0018] The beneficial effects of the utility model are as follows: by optimizing and improving the design of the product of the utility model, spiral grooves of specific specifications are added to the oil pump spiral grooves, thereby ensuring that the lubricating oil is evenly and continuously supplied to the parts that need lubrication, thereby achieving the beneficial effects of improving the operating efficiency and reliability of the compressor, ensuring the normal operation of the compressor and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a front view of a crankshaft of an oil pump structure according to an embodiment of the present utility model;

[0021] Figure 2 This is a perspective view of a crankshaft of an oil pump structure according to an embodiment of the present utility model;

[0022] Figure 3 This is a front view of an embodiment of a triangular spiral groove of a crankshaft of an oil pump structure according to an embodiment of the present utility model;

[0023] Figure 4 The crankshaft of the oil pump structure according to the embodiment of the utility model Figure 3 Partial enlarged view;

[0024] Figure 5This is a front view of an embodiment of an arc-shaped spiral groove of a crankshaft of an oil pump structure according to an embodiment of the present utility model;

[0025] Figure 6 The crankshaft of the oil pump structure according to the embodiment of the utility model Figure 5 Partial enlarged view;

[0026] In the figure: 1. Eccentric shaft; 2. Long shaft; 3. Spiral oil groove; 4. Eccentric oil hole; 5. Balancing part; 6. Oblique through hole; 7. Oil supply channel; 8. Pump oil groove inlet; 9. Pump oil groove outlet; 11. Pump oil spiral groove; 1101. Triangular spiral groove; 1102. Arc-shaped spiral groove; 12. Spiral oil groove oil outlet. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0028] It should be understood that in the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0029] First, as Figure 1-6As shown, a crankshaft of an oil pumping structure according to an embodiment of the present utility model includes an eccentric shaft 1 and a long shaft 2, a balancing portion 5 is provided between the eccentric shaft 1 and the long shaft 2, an oil supply channel 7 is provided in the long shaft 2, and an oil pumping groove inlet 8 connected to the oil supply channel 7 is provided on the side wall of the long shaft 2, an oil pumping groove outlet 9 is provided on the side wall of the oil supply channel 7 away from the oil pumping groove inlet 8, the oil pumping groove outlet 9 is connected to the spiral oil groove 3, and an oil pumping spiral groove 11 is opened on the inner side wall of the oil supply channel 7.

[0030] According to the crankshaft of the oil pump structure described in an embodiment of the present invention, in a specific embodiment, the spiral oil groove 3 is connected to the eccentric oil hole 4 through an oblique through hole 6 at one end thereof adjacent to the balancing portion 5 .

[0031] According to the crankshaft of the oil pump structure described in an embodiment of the present invention, in a specific embodiment, a spiral oil groove oil outlet 12 is opened at the connection between the spiral oil groove 2 and the oblique through hole 6 .

[0032] According to the crankshaft of the oil pump structure described in an embodiment of the present invention, in a specific embodiment, the oil pump spiral groove 11 opened on the inner side wall of the oil supply channel 7 is a triangular spiral groove 1101.

[0033] According to a crankshaft with an oil pump structure described in an embodiment of the present invention, in a specific embodiment, the width of the triangular spiral groove 1101 is 1-3 mm and the depth is 0.5-2 mm; the pitch of the triangular spiral groove 1101 is greater than or equal to the height of the oil supply channel 7.

[0034] According to the crankshaft of the oil pump structure described in an embodiment of the present invention, in a specific embodiment, the oil pump spiral groove 11 opened on the inner side wall of the oil supply channel 7 is an arc-shaped spiral groove 1102.

[0035] According to a crankshaft with an oil pump structure described in an embodiment of the present invention, in a specific embodiment, the width of the arcuate spiral groove 1102 is 1-3 mm and the depth is 0.5-2 mm; the pitch of the arcuate spiral groove 1102 is less than or equal to the height of the oil supply channel 7.

[0036] According to the crankshaft of the oil pumping structure described in an embodiment of the present invention, in a specific embodiment, the rotation direction of the oil pumping spiral groove 11 is consistent with the operating direction of the compressor.

[0037] In a second aspect, the product of the utility model further provides a compressor, which includes a crankshaft with the above-mentioned oil pumping structure.

[0038] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0039] During specific use, according to a crankshaft with an oil pumping structure described in the present invention, an oil supply channel 7 is drilled in the long axis 2 of the crankshaft, and an oil pumping spiral groove 11 is opened in the cavity of the oil supply channel 7 after drilling. The oil pumping spiral groove 11 is a triangular spiral groove 1101 or an arc-shaped spiral groove 1102; the inner diameter of the drilled oil supply channel 7, the size, shape, depth, pitch and taper of the oil pumping spiral groove 11 can be adaptively adjusted and specially set according to the outer diameter of the crankshaft long axis and the oil pumping amount of different compressors. In a specific embodiment of the present invention, the width of the triangular spiral groove 1101 or the arc-shaped spiral groove 1102 is 1-3mm and the depth is 0.5-2mm; the specific setting method of the oil pumping spiral groove 11 in the clockwise or counterclockwise direction is consistent with the operating direction of the compressor.

[0040] A triangular spiral groove 1101 or an arc-shaped spiral groove 1102 is opened in the long axis 2 of the crankshaft. When the compressor is running, the oil supply channel 7 in the long axis 2 of the crankshaft can pump oil under the action of the oil pumping spiral groove 11 and centrifugal force. After the lubricating oil is pumped out through the oil pumping spiral groove 11, it rises along the oil path and reaches various parts of the compressor that need lubrication.

[0041] To sum up, with the help of the above-mentioned technical solution of the utility model, through the optimization and improvement design of the product of the utility model, spiral grooves of specific specifications are added to the oil pump spiral groove, so as to ensure that the lubricating oil is evenly and continuously supplied to the parts that need lubrication, thereby achieving the beneficial effects of improving the operating efficiency and reliability of the compressor, ensuring the normal operation of the compressor and extending its service life.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crankshaft with an oil pump structure, characterized in that: The invention comprises an eccentric shaft (1) and a long shaft (2), wherein a balancing portion (5) is provided between the eccentric shaft (1) and the long shaft (2), an oil supply channel (7) is provided in the long shaft (2), a pump oil groove inlet (8) connected to the oil supply channel (7) is provided on the side wall of the long shaft (2), an oil pump groove outlet (9) is provided on the side wall of the oil supply channel (7) away from the oil pump groove inlet (8), the oil pump groove outlet (9) is connected to the spiral oil groove (3), and an oil pump spiral groove (11) is provided on the inner side wall of the oil supply channel (7).

2. The crankshaft of the oil pump structure according to claim 1, characterized in that: One end of the spiral oil groove (3) adjacent to the balancing portion (5) is connected to the eccentric oil hole (4) via an oblique through hole (6).

3. The crankshaft of the oil pump structure according to claim 2, characterized in that: A spiral oil groove oil outlet (12) is provided at the connection point between the spiral oil groove (2) and the oblique through hole (6).

4. The crankshaft of the oil pump structure according to claim 1, characterized in that: The oil pump spiral groove (11) opened on the inner side wall of the oil supply channel (7) is a triangular spiral groove (1101).

5. The crankshaft of the oil pump structure according to claim 4, characterized in that: The width of the triangular spiral groove (1101) is 1-3 mm, and the depth is 0.5-2 mm; the pitch of the triangular spiral groove (1101) is greater than or equal to the height of the oil supply channel (7).

6. The crankshaft of the oil pump structure according to claim 1, characterized in that: The oil pump spiral groove (11) opened on the inner side wall of the oil supply channel (7) is an arc-shaped spiral groove (1102).

7. The crankshaft of the oil pump structure according to claim 6, characterized in that: The width of the arc-shaped spiral groove (1102) is 1-3 mm, and the depth is 0.5-2 mm; the pitch of the arc-shaped spiral groove (1102) is less than or equal to the height of the oil supply channel (7).

8. The crankshaft of the oil pump structure according to claim 1, characterized in that: The rotation direction of the oil pump spiral groove (11) is consistent with the operating direction of the compressor.

9. A compressor, characterized in that: A crankshaft comprising an oil pump structure according to any one of claims 1-8.

Images