A new lubrication system for a mixer

Abstract

The present invention relates to a new lubrication system for a mixer, which includes an oil pump motor, a lubricating oil tank and a non-electric oil pump. The output shaft of the main motor is connected to a reducer, and the output shaft end of the reducer is connected to the upper left and right reducers. A stirring structure is installed on the output shafts of the upper left and right reducers. A reducer lubrication system is provided in the reducer, and a reducer lubricating oil inlet and a reducer lubricating oil outlet are opened on the reducer. In the present invention, the structure is simple, the lubricating oil adopts an external circulation form, and an air-cooled oil tank is adopted to fully cool the lubricating oil, which is convenient for maintenance. Through the setting of the intermediate oil pan, the upper and lower lubricating oil circuits are connected, and the opening structure of the intermediate oil pan avoids the winding of the oil pipes.

Description

Technical Field

[0001] The present invention belongs to the technical field of mixers and relates to a new lubrication system for mixers. Background Art

[0002] The working conditions of traditional mixers are relatively harsh. Several transmission mechanisms are required on the mixer and need to be lubricated separately, resulting in a complex lubrication system and a very high manufacturing cost. Summary of the Invention

[0003] The purpose of the present invention is to provide a new lubrication system for mixers, which simplifies the equipment lubrication system through the unified design of the lubricating oil circuit of the driving mechanism and is more convenient for operation and maintenance.

[0004] According to the technical solution provided by the present invention: A new lubrication system for mixers includes a speed reducer and a lubricating oil tank. The speed reducer includes a speed reducer housing, a central output shaft is rotatably installed in the speed reducer housing, the upper end of the speed reducer housing is an installation flange, an external gear ring is connected to the upper part of the installation flange, a rotating flange is fixedly connected to the outer periphery of the upper part of the central output shaft, a left upper part speed reducer housing is installed on one side of the rotating flange; a right upper part speed reducer housing is installed on the other side of the rotating flange; a speed reducer lubricating oil inlet and a speed reducer lubricating oil outlet are opened on the speed reducer, a right lubricating oil inlet is opened at the top of the right upper part speed reducer housing, and a right lubricating oil outlet is opened in the middle of the right upper part speed reducer housing; a left lubricating oil inlet is opened at the top of the left upper part speed reducer housing, and a left lubricating oil outlet is opened in the middle of the left upper part speed reducer housing; the output end of the lubricating oil tank is connected to a cooler through a lower oil pump, the cooler is connected to the input end of a three-way valve, the first output end of the three-way valve is connected to the speed reducer lubricating oil inlet, the second output end of the three-way valve is connected to the bottom of an intermediate oil pan, a right upper oil pump is installed on the right upper part speed reducer housing, the inlet end of the right upper oil pump is connected to one end of a right suction pipe, and the outlet end is connected to the right lubricating oil inlet, a left upper oil pump is installed on the left upper part speed reducer housing, the inlet end of the left upper oil pump is connected to one end of a left suction pipe, and the outlet end communicates with the left lubricating oil inlet. The bottom ends of the right suction pipe and the left suction pipe are both located in the intermediate oil pan. One end of a left return pipe is connected to the left lubricating oil outlet, and the other end of the left return pipe is located in the intermediate oil pan. One end of a right return pipe is connected to the right lubricating oil outlet, and the other end of the right return pipe is located in the intermediate oil pan. An oil pan oil outlet is arranged in the middle of the intermediate oil pan, the oil pan oil outlet is connected to the speed reducer lubricating oil inlet, and the speed reducer lubricating oil outlet is connected to the input port of the lubricating oil tank.

[0005] As a further improvement of the present invention, the lower oil pump is an electric oil pump.

[0006] As a further improvement of the present invention, the cooler is an air cooler.

[0007] As a further improvement of the present invention, a sealing ring is installed between the upper end of the outer periphery of the intermediate oil pan and the bottom of the rotating flange.

[0008] As a further improvement of the present invention, the reducer housing is provided with a first reducer lubricating oil inlet on the upper side, a second reducer lubricating oil inlet on the top, and a reducer lubricating oil outlet on the lower side.

[0009] As a further improvement of the present invention, the intermediate oil pan is in a semi-closed circular ring shape, and the upper part of the intermediate oil pan is an open structure.

[0010] As a further improvement of the present invention, the upper right oil pump and the upper left oil pump are non-electric oil pumps.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. The present invention has a simple structure. The lubricating oil adopts an external circulation form, and an air-cooled oil tank is used to fully cool the lubricating oil, which is convenient for maintenance.

[0013] 2. In the present invention, through the setting of the intermediate oil pan, the upper and lower lubricating oil paths are connected, and the open structure of the intermediate oil pan avoids the entanglement of oil pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the transmission structure of the present invention.

[0015] Figure 2 It is a schematic structural diagram of the lubrication structure of the present invention.

[0016] Figure 3 is Figure 2 a top view of DETAILED DESCRIPTION OF THE INVENTION

[0017] The following further describes the specific embodiments of the present invention with reference to the drawings.

[0018] Figures 1 - 3It includes a right upper oil pump 1-1, a left upper oil pump 1-2, a left oil return pipe 2, a right oil return pipe 3, a right oil suction pipe 5, a cooler 7, a lower oil pump 8, a lubricating oil tank 9, a left oil suction pipe 10, an intermediate oil pan 11, a speed reducer 13, a spiral bevel gear shaft 13-1, a bevel gear 13-2, a first drive shaft 13-3, a first drum-shaped internal gear ring 13-4, a sun gear shaft 13-5, a first planetary carrier 13-6, a first planetary gear 13-7, a first internal gear ring 13-8, a second sun gear shaft 13-9, a second planetary carrier 13-10, a second internal gear ring 13-11, a second planetary gear 13-12, a speed reducer housing 13-13, a central output shaft 13-14, a first lower left gear 13-15, a right output flange 13-16, an external gear ring 13-17, a rotating flange 13-18, a right upper speed reducer housing 13-19, a second right upper gear 13-20, a first right upper gear 13-21, a first left upper gear 13-22, a second left upper gear 13-23, a second lower left gear 13-24, a third left gear 13-25, a left upper speed reducer housing 13-26, a left output flange 13-27, a three-way valve 17, etc.

[0019] As Figure 2 shown, a new lubrication system for a mixer includes a speed reducer 13 and a lubricating oil tank 9. As Figure 1 shown, the speed reducer 13 includes a speed reducer housing 13-13. A spiral bevel gear shaft 13-1 is horizontally and rotatably installed at the lower part of the speed reducer housing 13-13, and a first drive shaft 13-3 is vertically and rotatably installed at the lower part of the speed reducer housing 13-13. The upper part of the first drive shaft 13-3 is the connecting gear end of the first drive shaft 13-3. A bevel gear 13-2 is installed at the lower part of the first drive shaft 13-3 through a flat key. The bevel gear 13-2 meshes with the tooth-shaped end of the spiral bevel gear shaft 13-1. A sun gear shaft 13-5 is rotatably installed in the middle of the speed reducer housing 13-13. The upper part of the sun gear shaft 13-5 is the transmission gear end of the sun gear shaft 13-5, and the lower part is the connecting gear end of the sun gear shaft 13-5. The first drive shaft 13-3 and the sun gear shaft 13-5 are connected through a first drum-shaped internal gear ring 13-4. The upper part of the first drive shaft 13-3, i.e., the connecting gear end of the first drive shaft 13-3, meshes with the lower part inside the first drum-shaped internal gear ring 13-4, and the connecting gear end of the sun gear shaft 13-5 meshes with the upper part inside the first drum-shaped internal gear ring 13-4.

[0020] On the outer periphery of the transmission gear end of the sun gear shaft 13-5, a first-stage internal gear ring 13-8 is provided. The first-stage internal gear ring 13-8 is fixedly installed in the reducer housing 13-13 by screws. Between the transmission gear end of the sun gear shaft 13-5 and the first-stage internal gear ring 13-8 are a first-stage planet carrier 13-6 and three first-stage planet gears 13-7. The first-stage planet carrier 13-6 includes a connecting ring, and three mounting rods are vertically arranged on the connecting ring. The first-stage planet gears 13-7 are rotatably installed on the mounting rods and mesh with the transmission gear end of the sun gear shaft 13-5 and the first-stage internal gear ring 13-8. The upper ends of the mounting rods of the first-stage planet carrier 13-6 protrude from the first-stage planet gears 13-7.

[0021] Above the sun gear shaft 13-5, a second-stage sun gear shaft 13-9 is provided. The upper part of the second-stage sun gear shaft 13-9 is the transmission gear end of the second-stage sun gear shaft 13-9, and the lower part is the connecting gear end of the second-stage sun gear shaft 13-9. The upper ends of the mounting rods of the first-stage planet carrier 13-6 are connected to the bottom of the second drum-shaped internal gear ring by welding. The connecting gear end of the second-stage sun gear shaft 13-9 meshes with the second drum-shaped internal gear ring.

[0022] On the outer periphery of the transmission gear end of the second-stage sun gear shaft 13-9, a second-stage internal gear ring 13-11 is provided. The second-stage internal gear ring 13-11 is fixedly installed in the reducer housing 13-13 by screws. Between the transmission gear end of the second-stage sun gear shaft 13-9 and the second-stage internal gear ring 13-11 are a second-stage planet carrier 13-10 and three second-stage planet gears 13-12. The second-stage planet carrier 13-10 includes a connecting ring, and three mounting rods are vertically arranged on the connecting ring. The second-stage planet gears 13-12 are rotatably installed on the mounting rods of the second-stage planet carrier 13-10 and mesh with the second-stage sun gear shaft 13-9 and the second-stage internal gear ring 13-11. The upper ends of the mounting rods of the second-stage planet carrier 13-10 protrude from the second-stage planet gears 13-12.

[0023] The upper end of the reducer housing 13-13 is a mounting flange, and a central output shaft hole is opened in the mounting flange. The upper part of the reducer housing 13-13 is rotatably installed with a central output shaft 13-14 through bearings. The lower part of the central output shaft 13-14 is located in the reducer 13. The middle and upper part of the central output shaft 13-14 passes through the central output shaft hole on the mounting flange and protrudes from the reducer housing 13-13.

[0024] The upper part of the mounting flange is connected to the external gear ring 13-17 through a vertical pin shaft, which prevents the external gear ring 13-17 from moving horizontally. The external gear ring 13-17 is sleeved on the outer periphery of the middle part of the central output shaft 13-14, and the rotating flange 13-18 is connected to the outer periphery of the upper part of the central output shaft 13-14 by welding.

[0025] On one side of the rotating flange 13-18, the left upper reducer housing 13-26 is installed. In the left upper reducer housing 13-26, the first left drive shaft, the second left drive shaft, and the third left drive shaft are vertically and rotatably installed in sequence from the inside to the outside. The lower part of the first left drive shaft is connected to the first left lower gear 13-15 through a keyway structure, and the left lower gear 13-15 meshes with the external gear ring 13-17. The upper part of the first left drive shaft is connected to the first left upper gear 13-22 through a keyway structure. The upper part of the second left drive shaft is connected to the second left upper gear 13-23 through a keyway structure, and the lower part of the second left drive shaft is connected to the second left lower gear 13-24 through a keyway structure. The middle part of the third left drive shaft is connected to the third left gear 13-25 through a keyway structure, and the lower part of the third left drive shaft is connected to the left output flange 13-27 through a threaded structure. The first left upper gear 13-22 meshes with the second left upper gear 13-23, and the second left lower gear 13-24 meshes with the third left gear 13-25.

[0026] On the other side of the rotating flange 13-18, the right upper reducer housing 13-19 is installed. In the right upper reducer housing 13-19, the first right drive shaft and the second right drive shaft are vertically and rotatably installed in sequence from the inside to the outside. The lower part of the first right drive shaft is connected to the first right lower gear through a keyway structure, and the right lower gear meshes with the external gear ring 13-17. The upper part of the first right drive shaft is connected to the first right upper gear 13-21 through a keyway structure. The upper part of the second right drive shaft is connected to the second right upper gear 13-20 through a keyway structure, and the lower part of the second right drive shaft is connected to the right output flange 13-16 through a threaded structure. The first right upper gear 13-21 meshes with the second right upper gear 13-20.

[0027] The distances from the rotation centers of the left output flange 13-27 and the right output flange 13-16 to the axial center line of the central output shaft 13-14 are not equal. Mixer stirring rotors are installed below both the left output flange 13-27 and the right output flange 13-16.

[0028] A reducer lubrication system is provided in the reducer 13 to lubricate the reducer gears and bearings, preventing wear of the gears and bearings during long-term operation. The reducer 13 is provided with a reducer lubricating oil inlet and a reducer lubricating oil outlet. The reducer housing 13-13 is provided with a first reducer lubricating oil inlet on the upper side, a second reducer lubricating oil inlet on the top, and a reducer lubricating oil outlet on the lower side.

[0029] A right upper reducer housing 13-19 is provided with a right-side transmission lubrication system to lubricate the gear transmission and bearings inside the right side, preventing wear of the right-side transmission gears and bearings during long-term operation. The top of the right upper reducer housing 13-19 is provided with a first right lubricating oil inlet and a second right lubricating oil inlet. The first right lubricating oil inlet is located above the first right transmission shaft, and the second right lubricating oil inlet is located above the second right transmission shaft. An upper right oil pump 1-1 is installed on the right upper reducer housing 13-19. A right lubricating oil outlet is provided in the middle of the right upper reducer housing 13-19.

[0030] A left upper reducer housing 13-26 is provided with a left-side transmission lubrication system to lubricate the gear transmission and bearings inside the left side, preventing wear of the left-side transmission gears and bearings during long-term operation. The top of the left upper reducer housing 13-26 is provided with a first left lubricating oil inlet, a second left lubricating oil inlet, and a third left lubricating oil inlet. The first left lubricating oil inlet is located above the first left transmission shaft, the second left lubricating oil inlet is located above the second left transmission shaft, and the third left lubricating oil inlet is located above the third left transmission shaft. An upper left oil pump 1-2 is installed on the left upper reducer housing 13-26. A left lubricating oil outlet is provided in the middle of the left upper reducer housing 13-26.

[0031] As Figure 2 shown, the output end of the lubricating oil tank 9 is connected to the cooler 7 through the lower oil pump 8. The lubricating oil tank 9, the lower oil pump 8, and the cooler 7 are located on the side of the reducer 13. The cooler 7 is connected to the input end of the three-way valve 17. The first output end of the three-way valve 17 is connected to the first reducer lubricating oil inlet, and the second output end of the three-way valve 17 is connected to the bottom of the intermediate oil pan 11. The intermediate oil pan 11 is fixedly installed on the connecting flange part of the reducer 13 and is surrounded by oil pan partitions. The oil pan partitions are vertically installed on the outer periphery of the top of the connecting flange of the reducer 13. The first right lower gear, the first left lower gear 13-15, and the outer gear ring 13-17 are all located inside the oil pan partitions. The lubricating oil in the intermediate oil pan 11 is stored between the oil pan partitions and the outer periphery of the outer gear ring 13-17. The intermediate oil pan 11 is a semi-closed circular ring, and the upper part of the intermediate oil pan 11 is an open structure. The inlet end of the upper right oil pump 1-1 is connected to one end of the right suction pipe 5, and the outlet end is communicated with the first right lubricating oil inlet and the second right lubricating oil inlet through the right oil distributor. The inlet end of the upper left oil pump 1-2 is connected to one end of the left suction pipe 10, and the outlet end is communicated with the first left lubricating oil inlet, the second left lubricating oil inlet, and the third left lubricating oil inlet through the left oil distributor. The bottom ends of the right suction pipe 5 and the left suction pipe 10 are both located in the intermediate oil pan 11.

[0032] The left lubricating oil outlet on the upper left reducer housing 13-26 is connected to one end of the left oil return pipe 2, and the other end of the left oil return pipe 2 is located in the middle oil pan 11. The right lubricating oil outlet on the upper right reducer housing 13-19 is connected to one end of the right oil return pipe 3, and the other end of the right oil return pipe 3 is located in the middle oil pan 11. An oil pan oil outlet is provided in the middle of the middle oil pan 11, and the oil pan oil outlet is connected to the second reducer lubricating oil inlet through a pipe. The reducer lubricating oil outlet is connected to the inlet of the lubricating oil tank 9 through a pipe.

[0033] The lower oil pump 8 is an electric oil pump.

[0034] The cooler 7 is an air cooler.

[0035] A sealing ring is installed between the top of the oil pan partition and the bottom of the rotating flange 13-18 to prevent impurities from entering the middle oil pan 11 and protect the lubricating oil.

[0036] The upper right oil pump 1-1 and the upper left oil pump 1-2 are two non-electric oil pumps.

[0037] Its working principle:

[0038] The lubricating oil is sucked from the oil tank 9 by 2 lower oil pumps 8 (one in use and one in reserve), sent to the cooler 7, and after the lubricating oil cooler cools down, a part of it enters the lubrication system of the reducer 13 through the three-way valve 17, and the other part enters the middle oil pan 11.

[0039] The lubricating oil that enters the lubrication system of the reducer 13 returns to the lubricating oil tank 9 through a pipe from the reducer lubricating oil outlet after completing lubrication.

[0040] The lubricating oil that enters the middle oil pan 11 is respectively sucked into the upper left reducer housing 13-26 and the upper right reducer housing 13-19 by the left suction pipe 10 and the right suction pipe 5. After lubricating the transmission gears and bearings, it returns to the middle oil pan 11 through the left oil return pipe 2 and the right oil return pipe 3, and flows into the lubrication system of the reducer 13 from the oil pan oil outlet, and returns to the lubricating oil tank 9 through a pipe from the reducer lubricating oil outlet after completing lubrication.

[0041] The opening design at the upper part of the middle oil pan 11 avoids the entanglement of the left suction pipe 10, the right suction pipe 5, the left oil return pipe 2, and the right oil return pipe 3 when the reducer 13 drives the stirring rotor to rotate.

Claims

1. A new lubrication system for a mixer, characterized in that: The lubrication system includes a speed reducer (13) and a lubricating oil tank (9). The speed reducer (13) includes a speed reducer housing (13-13). A central output shaft (13-14) is rotatably installed in the speed reducer housing (13-13). The upper end of the speed reducer housing (13-13) is a mounting flange. An external gear ring (13-17) is connected to the upper part of the mounting flange. A rotating flange (13-18) is fixedly connected to the outer periphery of the upper part of the central output shaft (13-14). A left upper part speed reducer housing (13-26) is installed on one side of the rotating flange (13-18); a right upper part speed reducer housing (13-19) is installed on the other side of the rotating flange (13-18); a speed reducer lubricating oil inlet and a speed reducer lubricating oil outlet are provided on the speed reducer (13). A right lubricating oil inlet is provided at the top of the right upper part speed reducer housing (13-19), and a right lubricating oil outlet is provided in the middle of the right upper part speed reducer housing (13-19); a left lubricating oil inlet is provided at the top of the left upper part speed reducer housing (13-26), and a left lubricating oil outlet is provided in the middle of the left upper part speed reducer housing (13-26); the output end of the lubricating oil tank (9) is connected to a cooler (7) through a lower oil pump (8). The cooler (7) is connected to the input end of a three-way valve (17). The first output end of the three-way valve (17) is connected to the speed reducer lubricating oil inlet. The second output end of the three-way valve (17) is connected to the bottom of an intermediate oil pan (11). A right upper oil pump (1-1) is installed on the right upper part speed reducer housing (13-19). The inlet end of the right upper oil pump (1-1) is connected to one end of a right suction pipe (5), and the outlet end is connected to the right lubricating oil inlet. A left upper oil pump (1-2) is installed on the left upper part speed reducer housing (13-26). The inlet end of the left upper oil pump (1-2) is connected to one end of a left suction pipe (10), and the outlet end communicates with the left lubricating oil inlet. The bottom ends of the right suction pipe (5) and the left suction pipe (10) are both located in the intermediate oil pan (11). One end of the left lubricating oil outlet is connected to one end of a left return pipe (2), and the other end of the left return pipe (2) is located in the intermediate oil pan (11). One end of the right lubricating oil outlet is connected to one end of a right return pipe (3), and the other end of the right return pipe (3) is located in the intermediate oil pan (11). An oil pan oil outlet is provided in the middle of the intermediate oil pan (11). The oil pan oil outlet is connected to the speed reducer lubricating oil inlet. The speed reducer lubricating oil outlet is connected to the input port of the lubricating oil tank (9); the intermediate oil pan (11) is a semi-closed circular ring shape, and the upper part of the intermediate oil pan (11) is an open structure.

2. The novel lubrication system of the mixer according to claim 1, characterized in that: The lower oil pump (8) is an electric oil pump.

3. The novel lubrication system of the mixer according to claim 1, characterized in that: The cooler (7) is an air cooler.

4. The novel lubrication system of the mixer according to claim 1, characterized in that: A sealing ring is installed between the upper end of the outer periphery of the intermediate oil pan (11) and the bottom of the rotating flange (13-18).

5. The novel lubrication system of the mixer according to claim 1, characterized in that: The speed reducer housing (13-13) is provided with a first speed reducer lubricating oil inlet on the upper side, a second speed reducer lubricating oil inlet on the top, and a speed reducer lubricating oil outlet on the lower side.

6. The novel lubrication system of the mixer according to claim 1, characterized in that: The right upper oil pump (1-1) and the left upper oil pump (1-2) are non-electric oil pumps.

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