CN114458752A - Speed reducer lubricating system and lubricating method - Google Patents

Abstract

The utility model relates to the field of speed reducers, in particular to a speed reducer lubricating system and a speed reducer lubricating method. The system comprises a speed reducer, an oil supply pump, an oil inlet pipeline and an oil outlet pipeline; the speed reducer is provided with an oil storage part, an oil inlet hole, an upper bearing seat and an upper bearing; lubricating oil is arranged in the oil storage part, one end of an oil inlet pipeline penetrates through the oil inlet hole and is positioned in the lubricating oil of the oil storage part, and the other end of the oil inlet pipeline is connected with the input end of the oil supply pump; the output end of the oil supply pump is connected with one end of the oil outlet pipeline, and the upper bearing seat is provided with an oil injection hole and an oil guide groove which axially penetrate through the upper bearing seat; the upper bearing is positioned in the upper bearing seat, and two ends of the oil injection hole are respectively connected with the oil guide groove and the other end of the oil outlet pipeline; the oil guide groove is positioned on the inner wall of the bearing hole of the upper bearing seat, and the oil guide groove is positioned above the upper bearing. The system pumps lubricating oil to the oil filling hole by arranging an oil supply pump, and then the lubricating oil flows into the upper bearing through the oil guide groove; thereby realize the lubrication to the upper bearing, reduce the speed reducer and damage the probability.

Description

Reducer lubrication system and lubrication method

technical field

The invention relates to the field of reducers, in particular to a reducer lubricating system and a lubricating method.

Background technique

Reducers are widely used in the field of machinery, converting high-speed motor input into low-speed high-torque output. The input shaft of the reducer is a high-speed shaft. During the work process, the bearing corresponding to the input shaft rotates at a high speed and generates a lot of heat. If it cannot be lubricated in time, the bearing will easily fail due to high temperature and reduce the life of the reducer.

Chinese utility model patent application (publication number CN215172136U, publication date: 20211214) discloses a self-lubricating worm gear reducer, including a box body, a worm is meshed and connected to the lower side of the worm gear, and a pulley is slidably connected to the top of the cam , a piston is fixedly connected to the top of the sliding rod member, a piston cylinder is slidably connected to the outer side of the piston, a first pipe is provided on the left side of the top end of the piston cylinder, and a spray head is provided on the lower side of the right end of the second pipe, In the utility model, the cam rotates through the rotation of the worm, and the rotation of the cam squeezes the pulley, and the pulley drives the sliding rod to move vertically, so as to drive the piston to move up and down repeatedly in the piston cylinder through the sliding rod, and the movement of the piston in the piston cylinder causes the air pressure in the cylinder Therefore, the filtered lubricating oil is extracted through the first pipe and evenly sprayed on the worm gear from the nozzle on the second pipe. This device realizes the self-lubrication of the reducer without adding external devices, and the internal parts of the reducer can be fully Get better lubrication effect.

The existing technology has the following shortcomings: when the reducer is installed vertically, the output shaft and the upper bearing are located at a high position above, the level of the lubricating oil in the oil storage part of the reducer is low, and it is difficult for the lubricating oil to enter the upper bearing; The bearing is damaged due to lack of oil lubrication, resulting in the failure of the reducer.

SUMMARY OF THE INVENTION

The purpose of the present invention is to: in view of the above problems, to propose a kind of reducer lubrication for reducing the damage probability of the reducer by providing an oil supply pump to extract the lubricating oil to the oil injection hole, and then flowing into the upper bearing through the oil guide groove; thereby realizing the lubrication of the upper bearing and reducing the damage probability of the reducer System and lubrication method.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme:

A reducer lubrication system, the system includes a reducer, an oil supply pump, an oil inlet pipeline and an oil outlet pipeline; the reducer is provided with an oil storage part, an oil inlet hole, an upper bearing seat and an upper bearing; the oil storage part is provided with lubricating oil , one end of the oil inlet pipe passes through the oil inlet hole and is located in the lubricating oil of the oil storage part, the other end of the oil inlet pipe is connected with the input end of the oil supply pump; the output end of the oil supply pump is connected with one end of the oil outlet pipe, and the upper bearing seat is provided with a The oil injection hole and oil guide groove running through the axial direction; the upper bearing is located in the upper bearing seat, and both ends of the oil injection hole are respectively connected with the oil guide groove and the other end of the oil outlet pipe; the oil guide groove is located on the inner wall of the bearing hole of the upper bearing seat, and the oil guide groove is located in the above the upper bearing.

Preferably, the oil guide groove is circumferentially arranged along the inner wall of the bearing hole of the upper bearing seat.

Preferably, the oil supply pump is a gear pump.

Preferably, the reducer is provided with an input shaft, the gear pump is fixed on the reducer, and the input end of the gear pump is connected with the input shaft of the reducer.

Preferably, the reducer is also provided with a connecting plate, a connecting shaft and a locking screw; the connecting plate is fixed on the casing of the reducer, and the gear pump is fixed on the connecting plate; the input shaft is provided with a threaded hole, and one end of the connecting shaft is provided with a screw hole, The locking screw passes through the screw hole and is screwed with the screw hole, and the other end of the connecting shaft is connected with the input end of the gear pump.

Preferably, the other end of the connecting shaft is connected with the input end of the gear pump through a key.

Preferably, the inner wall of the bearing hole of the upper bearing seat is also fixedly embedded with a skeleton oil seal, and the skeleton oil seal is located above the oil guide groove.

Preferably, the reducer is also provided with a plurality of pipe joints; the oil inlet pipe is connected to the input end of the oil supply pump through the pipe joint, and the two ends of the oil outlet pipe are respectively connected to the output end of the oil supply pump and the oil injection hole through the pipe joint.

Preferably, both the oil inlet pipeline and the oil outlet pipeline are copper pipes.

In addition, the present invention also discloses a method for lubricating a reducer. The method adopts the lubricating system for a reducer, and includes the following steps:

(S1) Reducer drive: The reducer drive device drives the input shaft of the reducer to rotate and then drives the input end of the oil supply pump to rotate;

(S2) Oil supply by the oil supply pump: the oil supply pump works to extract the lubricating oil in the oil storage part through the oil inlet pipeline and discharge it to the oil injection hole along the oil outlet pipeline;

(S3) Upper bearing lubrication: The lubricating oil enters the oil guide groove through the oil injection hole, and flows into the upper bearing along the oil guide groove to lubricate it to complete the lubrication process of the reducer.

The present invention adopts the advantages of a reducer lubricating system and lubricating method of the above-mentioned technical scheme:

When the reducer lubrication system is working: 1) The drive device of the reducer drives the input shaft of the reducer to rotate and then drives the input end of the oil supply pump to rotate; 2) The oil supply pump works to extract the lubricating oil in the oil storage part through the oil inlet pipe and along the outlet. The oil pipeline is discharged to the oil injection hole; 3) The lubricating oil enters the oil guide groove through the oil injection hole, and flows into the upper bearing along the oil guide groove to lubricate it to complete the lubrication process of the reducer. In this method, the oil supply pump draws the lubricating oil through the oil inlet and outlet pipes to the oil injection hole, and then flows into the upper bearing through the oil guide groove; thus realizing the lubrication of the upper bearing and reducing the damage probability of the reducer.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a partial cross-sectional view of the upper bearing seat of the present invention.

Figure 3 is a schematic diagram of the structure of the oil injection hole and the oil guide groove.

FIG. 4 is a schematic structural diagram of a connecting plate and a connecting shaft.

Figure 5 is a schematic diagram of the structure of the skeleton oil seal.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

A reducer lubrication system as shown in Figure 1-3, the system includes a reducer 1, an oil supply pump 2, an oil inlet pipe 3 and an oil outlet pipe 4; the reducer 1 is provided with an oil storage part, an oil inlet hole 12, The upper bearing seat 13 and the upper bearing 14; the oil storage part is provided with lubricating oil, one end of the oil inlet pipe 3 passes through the oil inlet hole 12 and is located in the lubricating oil of the oil storage part, and the other end of the oil inlet pipe 3 is connected to the input end of the oil supply pump 2 The output end of the oil supply pump 2 is connected with one end of the oil outlet pipe 4, and the upper bearing seat 13 is provided with an axially penetrating oil injection hole 15 and an oil guide groove 16; They are respectively connected with the oil guide groove 16 and the other end of the oil outlet pipe 4 ; the oil guide groove 16 is located on the inner wall of the bearing hole of the upper bearing seat 13 , and the oil guide groove 16 is located above the upper bearing 14 . When the reducer lubrication system is working: 1) The drive device of the reducer drives the input shaft 17 of the reducer 1 to rotate and then drives the input end of the oil supply pump 2 to rotate; 3) The lubricating oil enters the oil guide groove 16 through the oil fill hole 15, and flows into the upper bearing 14 along the oil guide groove 16 to lubricate it to complete the reducer lubrication process. In this way, the oil supply pump 2 draws the lubricating oil to the oil filling hole 15 through the oil inlet pipe 3 and the oil outlet pipe 4, and then flows into the upper bearing 14 through the oil guide groove 16; thereby realizing the lubrication of the upper bearing 14 and reducing the speed of the reducer probability of damage.

The oil guide groove 16 is circumferentially arranged along the inner wall of the bearing hole of the upper bearing seat 13 . The oil supply pump 2 is a gear pump.

The reducer 1 is provided with an input shaft 17 , the gear pump is fixed on the reducer 1 , and the input end of the gear pump is connected with the input shaft 17 of the reducer 1 .

As shown in FIG. 4 , the reducer 1 is also provided with a connecting plate 18, a connecting shaft 19 and a locking screw; the connecting plate 18 is fixed on the casing of the reducer 1, and the gear pump is fixed on the connecting plate 18; the input shaft 17 is provided with threads Hole 171, one end of the connecting shaft 19 is provided with a screw hole 191, the locking screw passes through the screw hole 191 and is screwed with the screw hole 191, and the other end of the connecting shaft 19 is connected to the input end of the gear pump. The other end of the connecting shaft 19 is connected with the input end of the gear pump through a key. When the input shaft 17 rotates, it drives the connecting shaft 19 to rotate and then drives the input end of the gear pump to rotate, so that the reducer 1 can work while driving the gear pump, saving an oil pump motor and reducing the cost of the entire equipment.

As shown in FIG. 5 , a frame oil seal 161 is also fixedly embedded in the inner wall of the bearing hole of the upper bearing seat 13 , and the frame oil seal 161 is located above the oil guide groove 16 .

The reducer 1 is also provided with a plurality of pipe joints 10; the oil inlet pipe 3 is connected with the input end of the oil supply pump 2 through the pipe joint 10, and the two ends of the oil outlet pipe 4 are respectively connected with the output end of the oil supply pump 2 and the oil filling hole 15 through the pipe joint 10. connected. The oil inlet pipe 3 and the oil outlet pipe 4 are connected to other devices through the pipe joint 10, so as to ensure that the oil inlet pipe 3 and the oil outlet pipe 4 can be quickly disassembled. Both the oil inlet pipe 3 and the oil outlet pipe 4 are copper pipes.

Claims (10)

1. A speed reducer lubricating system is characterized by comprising a speed reducer (1), an oil supply pump (2), an oil inlet pipeline (3) and an oil outlet pipeline (4); the speed reducer (1) is provided with an oil storage part, an oil inlet hole (12), an upper bearing seat (13) and an upper bearing (14); lubricating oil is arranged in the oil storage part, one end of an oil inlet pipeline (3) penetrates through the oil inlet hole (12) and is positioned in the lubricating oil of the oil storage part, and the other end of the oil inlet pipeline (3) is connected with the input end of the oil supply pump (2); the output end of the oil supply pump (2) is connected with one end of the oil outlet pipeline (4), and the upper bearing seat (13) is provided with an oil filling hole (15) and an oil guide groove (16) which axially penetrate through; the upper bearing (14) is positioned in the upper bearing seat (13), and two ends of the oil filling hole (15) are respectively connected with the oil guide groove (16) and the other end of the oil outlet pipeline (4); the oil guide groove (16) is positioned on the inner wall of the bearing hole of the upper bearing seat (13), and the oil guide groove (16) is positioned above the upper bearing (14).

2. The lubrication system of the speed reducer as recited in claim 1, wherein the oil guide groove (16) is circumferentially disposed along an inner wall of a bearing hole of the upper bearing housing (13).

3. The reducer lubrication system according to claim 1, wherein the oil supply pump (2) is a gear pump.

4. A reducer lubrication system according to claim 3, characterised in that the reducer (1) is provided with an input shaft (17), that the gear pump is fixed to the reducer (1), and that the gear pump input is connected to the input shaft (17) of the reducer (1).

5. The speed reducer lubrication system according to claim 4, wherein the speed reducer (1) is further provided with a connecting plate (18), a connecting shaft (19) and a locking screw; the connecting plate (18) is fixed on the shell of the speed reducer (1), and the gear pump is fixed on the connecting plate (18); the input shaft (17) is provided with a threaded hole (171), one end of the connecting shaft (19) is provided with a screw hole (191), a locking screw penetrates through the screw hole (191) and is screwed with the screw hole (191), and the other end of the connecting shaft (19) is connected with the input end of the gear pump.

6. The lubrication system of the speed reducer according to claim 5, wherein the other end of the connecting shaft (19) is connected with the input end of the gear pump through a key.

7. The lubrication system of the speed reducer as claimed in claim 1, wherein a framework oil seal (161) is further fixedly embedded in the inner wall of the bearing hole of the upper bearing pedestal (13), and the framework oil seal (161) is located above the oil guide groove (16).

8. A reducer lubrication system according to claim 1, characterized in that the reducer (1) is further provided with a plurality of pipe joints (10); the oil inlet pipeline (3) is connected with the input end of the oil supply pump (2) through a pipe joint (10), and the two ends of the oil outlet pipeline (4) are respectively connected with the output end of the oil supply pump (2) and the oil filling hole (15) through the pipe joint (10).

9. The reducer lubrication system according to claim 1, wherein the oil inlet pipe (3) and the oil outlet pipe (4) are both copper pipes.

10. A speed reducer lubrication method, characterized in that the method employs a speed reducer lubrication system according to any one of claims 1 to 9, comprising the steps of:

(S1) the reducer drive: the speed reducer driving device drives an input shaft (17) of the speed reducer (1) to rotate so as to drive the input end of the oil supply pump (2) to rotate;

(S2) supplying oil to the oil supply pump: the oil supply pump (2) works to pump the lubricating oil in the oil storage part through the oil inlet pipeline (3) and discharge the lubricating oil to the oil filling hole (15) along the oil outlet pipeline (4);

(S3) upper bearing lubrication: lubricating oil enters the oil guide groove (16) through the oil filling hole (15) and flows into the upper bearing (14) along the oil guide groove (16) to lubricate the upper bearing, so that the speed reducer lubricating process is completed.

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