Main oil pump structure of six-stage compression gearbox

Abstract

The utility model relates to a main oil pump structure of a six-stage compression gearbox. The main oil pump structure comprises a gearbox body and a main motor driving shaft, the outer side of the motor driving shaft is rotationally sleeved with inner rings, a driven ring is arranged between the two inner rings in a sleeving mode, two fixing blocks are arranged on the inner wall of the driven ring, and springs are arranged on the fixing blocks; a pressing block is arranged on the driving shaft and has a distance from one end, far away from the fixed block, of the spring; the inner rings are rotationally arranged on the outer side of the driving shaft of the main motor in a sleeving mode, the driven ring is arranged between the two inner rings in a sleeving mode, and the driven ring is elastically connected with the pressing block on the driving shaft through the spring on the fixing block, so that in the starting stage, when the motor needs to overcome large static friction force and inertia force, the driving shaft is driven to rotate. The spring can absorb and buffer the impact force on the driving shaft, so that the direct load on the main oil pump is reduced, the abrasion of the main oil pump caused by overlarge load can be prevented, and the service life of the main oil pump is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of main oil pump structures and relates to a main oil pump structure of a six-stage compression gear box. Background Art

[0002] The compressor's compression gearbox, a core component of the entire compressor system, primarily generates power to drive the impeller and other components that compress the air. These components rotate at high speeds, effectively compressing the incoming air to meet the gas pressure requirements of industrial production or specific applications. However, lubrication of the compression gearbox is crucial to the overall operation of the compressor. To ensure proper lubrication between the gearbox's internal components, reduce friction and wear, and improve overall operating efficiency and lifespan, the main oil pump's drive becomes an essential auxiliary structure within the compression gearbox.

[0003] However, in actual applications, the existing main motor drive shaft often generates excessive load on the main oil pump at the moment of power start. This is mainly because during the startup phase, the motor needs to overcome large static friction and inertia to quickly accelerate the drive shaft to the rated speed; and in this process, the main oil pump, as a component connected to the drive shaft, will also be subjected to corresponding impact and load. If this load is too large, it will not only lead to increased wear of the main oil pump and shorten its service life, but may also have an adverse effect on the stable operation of the entire compressor. Utility Model Content

[0004] The purpose of the utility model is to provide a six-stage compression gearbox main oil pump structure, which can solve the problems raised in the background technology.

[0005] According to the technical solution provided by the utility model: a six-stage compression gearbox main oil pump structure, including a gearbox body and a main motor drive shaft; the outer rotating sleeve of the motor drive shaft is provided with an inner ring, a driven ring is provided between the two inner rings, and the inner wall of the driven ring is provided with two fixed blocks, and a spring is provided on the fixed block; a pressure block is provided on the drive shaft, and there is a distance between the pressure block and the end of the spring away from the fixed block.

[0006] Preferably, a push block is provided at one end of the spring away from the fixed block, and the push block is adapted to the fixed block.

[0007] Preferably, the spring is ring-shaped, and is sleeved between the main motor drive shaft and the driven ring.

[0008] Preferably, two sets of limiting rings are provided on the outer side of the spring, and both ends of the limiting rings are mounted on the fixing blocks.

[0009] Preferably, each group of the limiting rings includes two, and each spring is located between two limiting rings that are close to each other.

[0010] Preferably, the main motor drive shaft is rotatably mounted in the gear box, a main oil pump mounted inside the gear box is provided on the side of the main motor drive shaft, an internal driven gear is provided on the outer side of the main oil pump, and an internal drive gear is provided on the outer side of the main motor drive shaft, and the internal drive gear meshes with the internal driven gear. The positive and progressive effects of this application are:

[0011] The six-stage compression gearbox main oil pump structure provided by the embodiment of the utility model has the following advantages:

[0012] 1. An inner ring is provided on the outer rotating sleeve of the main motor drive shaft, and a driven ring is provided between the two inner rings. The driven ring is elastically connected to the pressure block on the drive shaft through the spring on the fixed block. During the startup phase, when the motor needs to overcome large static friction and inertia, the spring can absorb and buffer the impact force on the drive shaft, thereby reducing the direct load on the main oil pump. This helps prevent increased wear of the main oil pump due to excessive load and prolongs its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the formation and installation of the compression gear box of the utility model.

[0014] Figure 2 This is a schematic diagram of the connection between the motor drive shaft and the driven ring of the utility model.

[0015] Figure 3 It is a cross-sectional schematic diagram of the driven ring of the utility model.

[0016] Figure 4 It is a schematic diagram of the utility model without the limit ring installed.

[0017] In the figure: main oil pump 1; gear box body 2; main motor drive shaft 3; driven ring 4; internal drive gear 5; internal driven gear 6; inner ring 7; fixing block 72; pressure block 73; limiting ring 74; push block 75; spring 76. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the present invention, the following will be combined with the 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 without making creative efforts should fall within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figure 1-4 As shown, the utility model is a six-stage compression gearbox main oil pump structure, including a gearbox body 2 and a main motor drive shaft 3; the outer side of the motor drive shaft 3 is provided with an inner ring 7, and a driven ring 4 is provided between the two inner rings 7. The inner wall of the driven ring 4 is provided with two fixed blocks 72, and the fixed blocks 72 are provided with springs 76; a pressure block 73 is provided on the drive shaft 3, and a distance is provided between the pressure block 73 and the spring 76 at the end away from the fixed block 72;

[0021] An inner ring 7 is rotatably sleeved on the outer side of the main motor drive shaft 3, and a driven ring 4 is sleeved between the two inner rings 7. The driven ring 4 is elastically connected to the pressure block 73 on the drive shaft 3 through the spring 76 on the fixed block 72, so that during the startup phase, when the motor needs to overcome a large static friction and inertia force, the spring 76 can absorb and buffer the impact force on the drive shaft 3, thereby reducing the direct load on the main oil pump 1. This helps to prevent the main oil pump 1 from being aggravated by excessive load and extend its service life.

[0022] Preferably, a push block 75 is provided at one end of the spring 76 away from the fixed block 72, and the push block 75 is adapted to the fixed block 72; the spring 76 is annular, and the spring 76 is sleeved between the main motor drive shaft 3 and the driven ring 4; the annular design of the spring 76 and the addition of the limit ring 74 ensure that the spring 76 can evenly distribute force when under pressure, and also prevent the spring 76 from being dislocated or damaged during long-term use.

[0023] Preferably, two groups of limiting rings 74 are provided on the outside of the spring 76 , and both ends of the limiting rings 74 are mounted on the fixed block 72 ; each group of limiting rings 74 includes two, and each spring 76 is located between two limiting rings 74 close to each other.

[0024] Preferably, the main motor drive shaft 3 is rotatably installed in the gear box body 2, and a main oil pump 1 installed inside the gear box body 2 is provided on the side of the main motor drive shaft 3, and an internal driven gear 6 is provided on the outer side of the main oil pump 1. The outer side of the main motor drive shaft 3 is provided with an internal drive gear 5, and the internal drive gear 5 is engaged with the internal driven gear 6; through the engagement of the internal drive gear 5 and the internal driven gear 6, efficient and smooth transmission from the main motor drive shaft 3 to the main oil pump 1 is achieved, which not only improves the transmission efficiency, but also ensures the stability and reliability of the main oil pump 3 during startup and operation.

[0025] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A six-stage compression gearbox main oil pump structure, characterized in that: The invention comprises a gear box body (2) and a main motor drive shaft (3); an inner ring (7) is provided on the outer side of the motor drive shaft (3); a driven ring (4) is provided between the two inner rings (7); two fixed blocks (72) are provided on the inner wall of the driven ring (4); a spring (76) is provided on the fixed block (72); a pressure block (73) is provided on the drive shaft (3); and a distance is provided between the pressure block (73) and the spring (76) at one end away from the fixed block (72).

2. A six-stage compression gearbox main oil pump structure according to claim 1, characterized in that: A push block (75) is provided at one end of the spring (76) away from the fixed block (72), and the push block (75) is adapted to the fixed block (72).

3. The main oil pump structure of a six-stage compression gearbox according to claim 1, characterized in that: The spring (76) is annular and is sleeved between the main motor drive shaft (3) and the driven ring (4).

4. The main oil pump structure of a six-stage compression gearbox according to claim 1, characterized in that: Two sets of limiting rings (74) are provided on the outer side of the spring (76), and both ends of the limiting rings (74) are mounted on the fixing block (72).

5. A six-stage compression gearbox main oil pump structure according to claim 4, characterized in that: Each set of the limiting rings (74) includes two, and each spring (76) is located between two limiting rings (74) that are close to each other.

6. The main oil pump structure of a six-stage compression gearbox according to claim 1, characterized in that: The main motor drive shaft (3) is rotatably mounted in the gear box (2); a main oil pump (1) mounted inside the gear box (2) is provided on the side of the main motor drive shaft (3); an internal driven gear (6) is sleeved on the outer side of the main oil pump (1); an internal drive gear (5) is sleeved on the outer side of the main motor drive shaft (3); and the internal drive gear (5) is meshed with the internal driven gear (6).

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