Swing swash plate type compressor adopting automatic oil supplementing technology for preventing teeth from rotating

Abstract

The utility model relates to a swing swash plate type compressor adopting an automatic oil recharging technology for preventing teeth from rotating, which comprises a cylinder body and a cylinder cover fixed on one side of the cylinder body through a valve plate component, and further comprises a plurality of cylinders uniformly arranged by taking the axis of the cylinder body as the center, the piston capable of doing reciprocating motion is correspondingly arranged in the air cylinder, and an inner cavity of each piston is connected with a connecting rod through a universal ball joint; the utility model relates to the technical field of compressors. According to the swing swash plate type compressor adopting the tooth rotation preventing automatic oil supplementing technology, the oil supplementing lubricating channels are additionally arranged on the main shaft and the positioning gear, the oil storage amount of a product is increased, when the compressor operates, pressure difference can be generated between the gear meshing part and other areas, lubricating oil can be continuously conveyed to the gear meshing part through the lubricating oil way under the action of the pressure difference, and the lubricating effect is improved. An oil film is formed on the gear meshing face, friction and abrasion are reduced, noise is lowered, and the service life of a product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a swashplate compressor with anti-rotary tooth automatic oil replenishment technology. Background Technology

[0002] In a compressor, the main shaft drives a wedge-shaped swashplate to rotate. The rotation of the wedge-shaped swashplate forces a rocker plate to oscillate left and right around a steel ball. Friction between the rocker plate and the wedge-shaped swashplate gives the rocker plate a tendency to rotate, but this tendency is limited by a pair of gears, restricting the rocker plate's movement to only left and right. When the gears transmit torque, circumferential and axial forces are generated between the gear teeth, acting on the tooth profiles and causing elastic deformation and wear. Poor gear lubrication can lead to accelerated wear, pitting, or even breakage of the gear teeth, directly resulting in reduced compressor noise and lifespan. Existing swashplate compressors lubricate the gears by splashing oil onto the gears through the rotation of the main shaft. This method is simple in structure and low in cost, but the lubrication effect is affected by the degree of oil splashing and cannot achieve continuous lubrication of the gear meshing parts. Especially under high-speed, heavy-load operating conditions, existing lubrication methods cannot meet the product's lifespan requirements.

[0003] To address this issue, this invention discloses an automatic oil replenishment technology for anti-rotating gears. By adding oil replenishment and lubrication channels on the main shaft and positioning gears, the oil storage capacity of the product is increased. When the compressor is running, a pressure difference is generated between the gear meshing part and other areas. Under the action of the pressure difference, the lubricating oil is continuously delivered to the gear meshing part through the lubrication oil circuit, achieving the purpose of automatic oil replenishment. An oil film is formed on the gear meshing surface, reducing friction and wear, lowering noise, and extending product life. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a swashplate compressor with anti-rotational gear automatic oil replenishment technology, which solves the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a swashplate compressor with anti-rotary gear automatic oil replenishment technology, comprising a cylinder body and a cylinder cover fixed to one side of the cylinder body via a valve plate assembly.

[0006] It also includes multiple cylinders evenly arranged around the cylinder block axis;

[0007] It also includes a reciprocating piston installed in the cylinder, and the inner cavity of each piston is connected to a connecting rod through a ball joint;

[0008] It also includes a main shaft that is rotatably mounted in the cylinder cavity via bearings and shaft seals;

[0009] It also includes a swashplate fixedly mounted on the tail of the main shaft, the right side of which is inclined relative to the axis of the main shaft. The left side of the swashplate is rotatably connected to the inner cavity of the cylinder through a front thrust bearing. The right side of the swashplate is rotatably connected to a rocker plate through a rear thrust bearing. One end of the connecting rod is rotatably connected to the rocker plate through a ball joint. A steel ball is rotatably connected to the center of the rocker plate through a moving gear. A fixed gear is fixedly connected to the inner cavity of the cylinder. The inner cavity of the fixed gear has a ball socket that rotatably connects to the steel ball. The moving gear meshes with the fixed gear.

[0010] The bottom groove of the fixed gear ball socket is connected to a through hole that passes through the fixed gear. The side wall of the through hole is connected to multiple through-type oil replenishment channels. The bottom groove of the fixed gear ball socket is made into a through hole. At the same time, the fixed gear is equipped with annularly distributed oil replenishment channels. The number of channels is 2 to 6 depending on the actual use. The diameter of the channels can be between Φ2 and Φ4mm. The refrigerant oil inside the compressor cylinder is stored in the central hole of the cylinder through the through hole of the fixed gear and the oil replenishment channels. This design increases the oil storage capacity of the moving parts.

[0011] When the compressor is running, the refrigerant oil stored in the central hole of the cylinder can replenish the oil on the meshing surface of the gear through the oil replenishment channel of the fixed gear, which can reduce the friction coefficient between the moving gear, the fixed gear and the steel ball, as well as cool down, improve the durability of the parts, and ultimately extend the life of the compressor.

[0012] The spindle has a through-type oil lubrication channel inside its cavity. This channel, which is fixed to the swashplate, is cylindrical with a diameter between Φ5 and Φ7 mm. It extends from the swashplate end along the spindle's axial centerline to the location where the spindle seal is installed. A radial through-hole with a diameter of Φ2 to Φ3 mm is drilled between the seal and the bearing, connecting to the spindle's axial oil lubrication channel. When the spindle swashplate rotates, lubricating oil flows through this channel to continuously lubricate the anti-rotation gear. Simultaneously, a radially penetrating oil passage with a diameter of Φ2 to Φ3 mm can be added to the section of the spindle that mates with the bearing to lubricate the bearing and extend its lifespan.

[0013] Both the fixed gear and the moving gear have inclined surfaces on their arc surfaces to reduce the flow resistance of lubricating oil. The angle of the inclined surfaces is 10°-30°. The addition of inclined surfaces on the arc surfaces of the gears further reduces the flow resistance of lubricating oil. The length of the inclined surfaces is 1-2mm. This adjustment makes it easier for lubricating oil to reach the meshing surfaces of the gears, allowing for oil replenishment, reducing friction and wear, and extending the product's lifespan.

[0014] □ Cylinders: Evenly distributed around the axis of the compressor.

[0015] □ Piston: It reciprocates inside the cylinder and is connected to the rocker plate via a connecting rod.

[0016] □ Connecting rod: Connects the piston and the rocker plate. Both ends use spherical universal joints to coordinate the swing of the rocker plate and the movement of the piston without interference.

[0017] □ Shaking plate: The center is supported by a steel ball, and a pair of fixed moving gears and fixed gears restrict the shaking plate to only shake and not rotate.

[0018] □ Main spindle: Connected to the swashplate, it drives the wedge-shaped transmission plate to rotate.

[0019] □ Swashplate: Connected to the main shaft, its rotation forces the swashplate to swing left and right around the steel ball.

[0020] □ Anti-rotation gear: Restricts the clapper to only move left and right, preventing it from rotating. It is divided into moving gear and fixed gear.

[0021] □ Steel ball: Serves as the supporting center of the oscillating disc.

[0022] □ Valve plate assembly: Installed inside the compressor, it controls the intake and exhaust of gas.

[0023] □ Bearings: Reduce friction between the spindle and the transmission plate.

[0024] As a further embodiment of this utility model, the oil replenishment channel is distributed in a ring shape within the inner cavity of the fixed gear.

[0025] As a further embodiment of this utility model, the oil replenishment lubrication channel is cylindrical.

[0026] As a further embodiment of this utility model: the oil replenishment lubrication channel is set from the swashplate end along the axial centerline of the main shaft, with a depth extending to the section where the main shaft seal is installed.

[0027] As a further embodiment of this utility model: a through hole is provided radially between the shaft seal and the bearing, which communicates with the oil replenishment and lubrication channel.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] By adding oil replenishment and lubrication channels on the main shaft and positioning gears, the oil storage capacity of the product is increased. When the compressor is running, a pressure difference will be generated between the gear meshing part and other areas. Under the action of the pressure difference, the lubricating oil will be continuously delivered to the gear meshing part through the lubrication oil circuit to achieve the purpose of automatic oil replenishment. An oil film is formed on the gear meshing surface to reduce friction and wear, reduce noise and improve product life. Attached Figure Description

[0030] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0031] Figure 2 This is a sectional view of the fixed gear of this utility model;

[0032] Figure 3 This is a sectional view of the main shaft of this utility model;

[0033] Figure 4 This is a partial structural cross-sectional view of the moving gear of this utility model;

[0034] Figure 5 This utility model Figure 4 A magnified view of a section at point A in the middle;

[0035] Figure 6 A schematic diagram of the main axis of existing technology;

[0036] Figure 7 A schematic diagram of a fixed gear in the prior art.

[0037] In the diagram: 2. Shaft seal; 3. Bearing; 4. Front thrust bearing; 5. Cylinder block; 6. Rear thrust bearing; 7. Moving gear; 8. Fixed gear; 9. Steel ball; 10. Cylinder; 11. Main shaft; 12. Swashplate; 13. Rocker plate; 14. Connecting rod; 15. Piston; 16. Valve plate assembly; 17. Cylinder head; 18. Through hole; 19. Oil replenishment channel; 20. Oil replenishment lubrication channel. Detailed Implementation

[0038] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0039] Please see Figure 1-5 This utility model provides a technical solution: a swashplate compressor with anti-rotary tooth automatic oil replenishment technology, including a cylinder body 5 and a cylinder head 17 fixed to one side of the cylinder body 5 by a valve plate assembly 16.

[0040] It also includes multiple cylinders 10 evenly arranged around the axis of cylinder block 5;

[0041] It also includes a reciprocating piston 15 correspondingly arranged inside the cylinder 10, and the inner cavity of each piston 15 is connected to a connecting rod 14 through a ball joint;

[0042] It also includes a main shaft 11 that is rotatably disposed in the inner cavity of the cylinder body 5 via bearing 3 and shaft seal 2;

[0043] It also includes a swashplate 12 fixedly mounted on the tail of the main shaft 11. The right side of the swashplate 12 is inclined relative to the axis of the main shaft 11. The left side of the swashplate 12 is rotatably connected to the inner cavity of the cylinder 5 through the front thrust bearing 4. The right side of the swashplate 12 is rotatably connected to the rocker plate 13 through the rear thrust bearing 6. One end of the connecting rod 14 is rotatably connected to the rocker plate 13 through a ball joint. The center of the rocker plate 13 is rotatably connected to a steel ball 9 through a moving gear 7. The inner cavity of the cylinder 5 is fixedly connected to a fixed gear 8. The inner cavity of the fixed gear 8 has a ball socket that is rotatably connected to the steel ball 9. The moving gear 7 meshes with the fixed gear 8.

[0044] The bottom groove of the ball socket of the fixed gear 8 is connected to a through hole 18 that passes through the fixed gear 8. The side wall of the through hole 18 is connected to multiple through-type oil replenishment channels 19. The bottom groove of the ball socket of the fixed gear 8 is made into a through hole 18. At the same time, the fixed gear 8 is equipped with annularly distributed oil replenishment channels 19. The channels are arranged in 2 to 6 according to actual use, and the diameter of the channels can be between Φ2 and Φ4mm. The refrigerant oil inside the compressor cylinder 5 is stored in the central hole of the cylinder 5 through the through hole 18 and the oil replenishment channels 19 of the fixed gear 8. This design increases the oil storage capacity of the moving parts.

[0045] When the compressor is running, the refrigerant oil stored in the center hole of the cylinder 5 can replenish the oil on the meshing surface of the gear through the oil replenishment channel 19 of the fixed gear 8, which can reduce the friction coefficient between the moving gear 7, the fixed gear 8 and the steel ball 9 and reduce the temperature, improve the durability of the parts, and ultimately extend the life of the compressor.

[0046] The spindle 11 has a through-type oil lubrication channel 20 inside its cavity. The spindle 11, which is fixed together with the swashplate 12, has an additional oil lubrication channel 20 inside. The channel is designed to be cylindrical with a diameter between Φ5 and Φ7 mm. This channel is set from the end of the swashplate 12 along the axial centerline of the spindle 11 and extends to the position where the shaft seal 2 is installed on the spindle 11. A through hole with a diameter of Φ2 to Φ3 mm is drilled radially between the shaft seal 2 and the bearing 3, which is connected to the axial oil lubrication channel 20 of the spindle 11. When the spindle 11 and the swashplate 12 are rotating, the lubricating oil will pass through this channel to continuously lubricate the anti-rotation gear. At the same time, a radial through-hole with a diameter of Φ2 to Φ3 mm can be added to the bearing section of the spindle 11 to lubricate the bearing and improve its life.

[0047] Both the fixed gear 8 and the moving gear 7 have inclined surfaces 21 on their arc surfaces to reduce the resistance to lubricating oil flow. The angle of the inclined surfaces 21 is 10°-30°. The addition of inclined surfaces 21 on the arc surfaces of the gears reduces the resistance to lubricating oil flow. The length is 1-2mm. This adjustment makes it easier for lubricating oil to reach the meshing surfaces of the gears, allowing for oil replenishment, reducing friction and wear, and extending product life.

[0048] Cylinder 10: Evenly distributed around the axis of the compressor.

[0049] Piston 15: Reciprocates within cylinder 10 and is connected to rocker plate 13 via connecting rod 14.

[0050] Link 14: Connects piston 15 and rocker plate 13. Both ends are made of spherical universal joints to coordinate the swing of rocker plate 13 and the movement of piston 15 without interference.

[0051] The rocking plate 13 is supported by a steel ball 9 at its center, and a pair of fixed moving gears 7 and fixed gears 8 restrict the rocking plate 13 to rocking but not rotating.

[0052] Main shaft 11: Connected to swashplate 12, driving the wedge-shaped transmission plate to rotate.

[0053] Swashplate 12: Connected to the main shaft 11, its rotation forces the rocker plate 13 to swing left and right around the steel ball 9.

[0054] Anti-rotation gear: Restricts the rocker plate 13 to only move left and right, preventing it from rotating. It is divided into a moving gear 7 and a fixed gear 8.

[0055] Steel ball 9: serves as the support center for rocker plate 13.

[0056] Valve plate assembly 16: Installed inside the compressor, it controls the intake and exhaust of gas.

[0057] Bearing 3: Reduces friction between spindle 11 and transmission plate.

[0058] The oil replenishment channel 19 is distributed in a ring shape inside the fixed gear 8.

[0059] The oil replenishment lubrication channel 20 is cylindrical.

[0060] The oil replenishment lubrication channel 20 is set from the end of the swash plate 12 along the axial centerline of the spindle 11, with a depth extending to the section where the spindle 11 is installed with the shaft seal 2.

[0061] A through hole is provided radially between the shaft seal 2 and the bearing 3, which communicates with the oil replenishment lubrication channel 20.

[0062] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A swashplate compressor with anti-rotary gear automatic oil replenishment technology, comprising a cylinder body (5) and a cylinder head (17) fixed to one side of the cylinder body (5) via a valve plate assembly (16), characterized in that: It also includes multiple cylinders (10) evenly arranged around the axis of the cylinder body (5); It also includes a reciprocating piston (15) correspondingly provided in the cylinder (10), and the inner cavity of each piston (15) is connected to a connecting rod (14) through a ball joint; It also includes a main shaft (11) that is rotatably disposed in the inner cavity of the cylinder body (5) via a bearing (3) and a shaft seal (2); It also includes a swashplate (12) fixedly mounted on the tail of the main shaft (11), the right side of which is inclined relative to the axis of the main shaft (11). The left side of the swashplate (12) is rotatably connected to the inner cavity of the cylinder (5) through the front thrust bearing (4). The right side of the swashplate (12) is rotatably connected to the rocker plate (13) through the rear thrust bearing (6). One end of the connecting rod (14) is rotatably connected to the rocker plate (13) through a ball joint. The center of the rocker plate (13) is rotatably connected to a steel ball (9) through a moving gear (7). The inner cavity of the cylinder (5) is fixedly connected to a fixed gear (8). The inner cavity of the fixed gear (8) is provided with a ball socket that is rotatably connected to the steel ball (9). The moving gear (7) meshes with the fixed gear (8). The bottom groove of the ball socket of the fixed gear (8) is connected to a through hole (18) that penetrates the fixed gear (8), and the side wall of the through hole (18) is connected to multiple through-type oil replenishment channels (19). The inner cavity of the spindle (11) is provided with a through-type oil replenishment and lubrication channel (20); Both the fixed gear (8) and the moving gear (7) have inclined surfaces (21) on their arc surfaces.

2. The swashplate compressor with anti-rotary tooth automatic oil replenishment technology according to claim 1, characterized in that: The oil replenishment channel (19) is distributed in a ring shape inside the fixed gear (8).

3. The swashplate compressor with anti-rotary tooth automatic oil replenishment technology according to claim 1, characterized in that: The oil replenishment lubrication channel (20) is cylindrical.

4. The swashplate compressor with anti-rotary tooth automatic oil replenishment technology according to claim 1, characterized in that: The oil replenishment lubrication channel (20) is set from the end of the swashplate (12) along the axial centerline of the main shaft (11) and extends to the section where the shaft seal (2) is installed on the main shaft (11).

5. The swashplate compressor with anti-rotary tooth automatic oil replenishment technology according to claim 1, characterized in that: A through hole is provided radially between the shaft seal (2) and the bearing (3) to communicate with the oil replenishment lubrication channel (20).

Images