Speed reducer bearing lubricating mechanism

By designing a simple bolt and movable rod combination structure and a gear transmission system, the problem of cumbersome lubricant replacement in traditional reducers has been solved, enabling efficient disassembly and lubrication of the reducer, improving maintenance convenience and operating efficiency, and extending its service life.

CN223854818UActive Publication Date: 2026-01-30HUBEI SAINIER MACHINERY MFG CO LTD
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Patent Information

Application Number
CN202520363249.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-01-30
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

In the maintenance of traditional speed reducers, changing and adding lubricating oil requires a long downtime and cumbersome operations, making maintenance inconvenient.

Method used

A reducer bearing lubrication mechanism was designed, which enables easy disassembly through a combination of bolts and movable rods, and utilizes a gear transmission system to evenly distribute lubricating oil. The mechanism includes the cooperation of an oil reservoir, an oil reservoir ring, and an oil blocking ring to ensure that the lubricating oil is evenly distributed to each key component.

Benefits of technology

This technology enables efficient disassembly, maintenance, and lubrication of the reducer, improves maintenance convenience, ensures the reliability and operating efficiency of the reducer, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bearing lubrication, and discloses a speed reducer bearing lubrication mechanism which comprises a lower shell, an upper shell is connected to the upper portion of the lower shell in an attached mode, positioning assemblies are fixedly connected to the four corners of the bottom of the upper shell, and the positioning assemblies are used for preliminarily installing and positioning the upper shell and the lower shell. And bolts are connected to the four corners of the interior of the upper shell in a clamped mode, threaded sections of the bolts are in threaded connection to the upper side of the interior of the lower shell, through grooves are formed in the four corners of the interior of the lower shell, and threaded rods are fixedly connected to the bottom sides of the interiors of the through grooves. According to the utility model, the speed reducer can be simply, conveniently and efficiently disassembled and maintained, the convenience of maintenance work is improved, the reliability and long-term performance of the speed reducer are ensured, lubricating oil can be uniformly distributed to each key part of the speed reducer, and particularly, an efficient lubricating effect on a bearing body is achieved; the operation efficiency of the speed reducer is improved, and the service life of the speed reducer is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bearing lubrication technical field especially relates to a speed reducer bearing lubrication mechanism. BACKGROUND

[0002] Speed reducer is a common transmission device in mechanical equipment, used to reduce the speed of motor or other power source and increase its output torque. Speed reducer plays an important role in many mechanical equipment and industrial applications, such as robots, automated production lines, conveying systems, etc.

[0003] Inside the speed reducer, bearings bear the task of support and load, so effective lubrication is needed to reduce friction, prolong service life and improve transmission efficiency. The design of lubrication mechanism is crucial to the performance and reliability of speed reducer, but in the traditional maintenance process of speed reducer, the work of disassembly and cleaning is more cumbersome, especially when lubricating oil is replaced and added, it needs longer downtime and tedious operation. Therefore, a speed reducer bearing lubrication mechanism is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of speed reducer bearing lubrication mechanism, to improve the problem that the work of disassembly and cleaning is more cumbersome in the traditional maintenance process of speed reducer in prior art, especially when lubricating oil is replaced and added, it needs longer downtime and tedious operation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of speed reducer bearing lubrication mechanism, including lower shell, the upper part of the lower shell is connected with upper shell, the bottom of the upper shell is fixedly connected with positioning assembly in four corners, the positioning assembly is used to preliminarily install and position upper shell and lower shell, the inside four corners of the upper shell are clamped and connected with bolt, the threaded section of the bolt is threadedly connected on the inside upper side of lower shell, the inside four corners of the lower shell are provided with through slot, the inside bottom side of the through slot is fixedly connected with threaded rod, the outside of the threaded rod is threadedly connected with movable rod, the threaded section of the bolt is threadedly connected on the inside upper side of movable rod, the outside of the movable rod is fixedly connected with fixed ring on one side, one end of the fixed ring is fixedly connected with spring, the spring is sleeved on the outside of the movable rod on one side, the other end of the spring is fixedly connected on the inside bottom side of through slot.

[0006] As a further description of the above technical scheme:

[0007] The lower side of the inner portion of the lower shell is rotationally connected with an input shaft, the lower side of the outer portion of the input shaft is clampingly connected with a bearing body, the upper side of the outer portion of the input shaft is fixedly connected with an output gear, the output gear is meshingly connected with a reduction gear, the inner portion of the reduction gear is fixedly connected with a transition shaft, one end of the transition shaft is rotationally connected in the inner portion of the lower shell, the upper side of the transition shaft is fixedly connected with a reduction pinion, the reduction pinion is meshingly connected with an output reduction gear, the inner portion of the output reduction gear is fixedly connected with an output shaft, one end of the output shaft is rotationally connected on one side of the inner portion of the lower shell, and the outer portions of the output gear, the reduction gear and the output reduction gear are provided with an oil storage frame.

[0008] As a further description of the above technical solution:

[0009] The positioning assembly comprises positioning rods which are fixedly connected to the four corners of the bottom of the upper shell, the positioning holes are formed in one side of the through slot, and the positioning rods are clampingly connected in the positioning holes.

[0010] As a further description of the above technical solution:

[0011] The movable rods and the fixed ring are slidingly connected in the through slot.

[0012] As a further description of the above technical solution:

[0013] The outer portion of the bearing body is provided with an oil blocking ring, the outer portion of the oil blocking ring is provided with an oil storage ring, and the inner portions of the oil blocking ring and the oil storage ring are provided with connecting holes.

[0014] As a further description of the above technical solution:

[0015] The inner portion of the bearing body is provided with mounting plates which are arranged in the upper and lower portions, and the inner portion of the mounting plate is provided with a through hole.

[0016] As a further description of the above technical solution:

[0017] One side of the inner portion of the upper shell is clampingly connected with a plug, one side of the bottom of the upper shell is fixedly connected with an oil injection pipe, and the oil injection hole clampingly connected with the plug is communicated with the oil injection pipe.

[0018] As a further description of the above technical solution:

[0019] The output shaft is rotationally connected on one side of the inner portion of the upper shell.

[0020] The utility model has the advantages of the following:

[0021] 1. The utility model discloses a bolt is rotated out the movable rod inside through external tool, makes movable rod and threaded rod separate, and slides in the through groove, fixed ring moves along with it, spring no longer is extruded, under the action of springback force fixed ring sticks to the through groove inner wall, make it pull the upper shell, make the positioning rod move from the positioning hole, realize simple and efficient to the decelerator is dismantled maintenance, improved the convenience of maintenance work, and ensured the reliability and long -term performance of decelerator.

[0022] 2. The utility model discloses a bolt is rotated out the movable rod inside through external tool, make movable rod and threaded rod separate, and slides in the through groove, fixed ring moves along with it, spring no longer is extruded, under the action of springback force fixed ring sticks to the through groove inner wall, make it pull the upper shell, make the positioning rod move from the positioning hole, realize simple and efficient to the decelerator is dismantled maintenance, improved the convenience of maintenance work, and ensured the reliability and long -term performance of decelerator. DRAWINGS

[0023] Figure 1 It is the split structure schematic drawing of the bearing lubricating mechanism of a decelerator that the utility model proposes;

[0024] Figure 2 It is the deceleration box installation structure schematic drawing of the bearing lubricating mechanism of a decelerator that the utility model proposes;

[0025] Figure 3 It is the oil injection structure schematic drawing of the bearing lubricating mechanism of a decelerator that the utility model proposes;

[0026] Figure 4 It is Figure 2 The enlarged view in A of the utility model;

[0027] Figure 5 It is Figure 3 The enlarged view in B of the utility model.

[0028] Legend:

[0029] 1, lower shell;2, upper shell;3, plug;4, oil injection pipe;5, output shaft;6, positioning rod;7, positioning hole;8, bolt;9, through groove;10, movable rod;11, fixed ring;12, spring;13, threaded rod;14, oil storage frame;15, input shaft;16, output gear;17, deceleration gear wheel;18, deceleration pinion;19, transition shaft;20, output deceleration gear;21, oil storage ring;22, oil blocking ring;23, connecting hole;24, bearing body;25, mounting plate;26, through -hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] With reference to Figure 1 , Figure 2 , Figure 5 An embodiment provided by the utility model: a kind of speed reducer bearing lubricating mechanism, the upper portion of lower shell 1 is connected with upper shell 2, and the bottom four corners of upper shell 2 are fixedly connected with positioning assembly, and positioning assembly is used to preliminarily install and position upper shell 2 and lower shell 1, and the inside four corners of upper shell 2 are clampedly connected with bolt 8, and the inside upper side of lower shell 1 is threadedly connected with the thread section of bolt 8, and the inside four corners of lower shell 1 are all provided with through slot 9, and the inside bottom side of through slot 9 is fixedly connected with threaded rod 13, and the outside of threaded rod 13 is threadedly connected with movable rod 10, and the inside upper side of movable rod 10 is threadedly connected with the thread section of bolt 8, and the outside one side of movable rod 10 is fixedly connected with fixed ring 11, and one end of fixed ring 11 is fixedly connected with spring 12, and spring 12 is sleeved on the outside one side of movable rod 10, and the other end of spring 12 is fixedly connected in the inside bottom side of through slot 9, so that it is tightly installed on the upper portion of lower shell 1, to avoid lubricating oil seepage;

[0032] Positioning assembly includes positioning rod 6, and the bottom four corners of upper shell 2 are fixedly connected with positioning rod 6, and one side of through slot 9 is all provided with positioning hole 7, and positioning rod 6 is clampedly connected in the inside of positioning hole 7;Movable rod 10 and fixed ring 11 are all slidingly connected in the inside of through slot 9.

[0033] by using spanner or screwdriver, gradually rotate it from the inside of movable rod 10 counterclockwise, along with the rotation of bolt 8, the connection between movable rod 10 and threaded rod 13 is loose, movable rod 10 slides in the inside of through slot 9, and movable rod 10 slides at the same time, and fixed ring 11 is moved together, so that fixed ring 11 no longer extrudes spring 12, so that spring 12 restores to its original state, and under the action of spring 12 in rebounding force, fixed ring 11 is pushed, so that it is attached to the inside wall of one side of through slot 9, so that upper shell 2 can be pulled, so that positioning rod 6 is removed from the inside of positioning hole 7, after upper shell 2 is completely separated, the components in the inside of speed reducer can be checked and maintained, to realize the simple and efficient disassembly and maintenance of speed reducer, improve the convenience of maintenance work, and ensure the reliability and long-term performance of speed reducer.

[0034] With reference to Figure 1 , Figure 3 ,Figure 4 The inside lower side of the lower shell 1 is rotatably connected with an input shaft 15, the outside lower side of the input shaft 15 is clampingly connected with a bearing body 24, the outside upper side of the input shaft 15 is fixedly connected with an output gear 16, the output gear 16 is meshingly connected with a reduction gear 17, the inside of the reduction gear 17 is fixedly connected with a transition shaft 19, one end of the transition shaft 19 is rotatably connected in the inside of the lower shell 1, the upper side of the transition shaft 19 is fixedly connected with a reduction pinion 18, the reduction pinion 18 is meshingly connected with an output reduction gear 20, the inside of the output reduction gear 20 is fixedly connected with an output shaft 5, one end of the output shaft 5 is rotatably connected in the inside of the lower shell 1, the outside of the output gear 16, the reduction gear 17 and the output reduction gear 20 is installed with an oil storage frame 14, so as to ensure that lubricating oil fills every corner of the reducer;

[0035] The outside of the bearing body 24 is installed with an oil blocking ring 22, the outside of the oil blocking ring 22 is installed with an oil storage ring 21, the inside of the oil blocking ring 22 and the oil storage ring 21 is respectively provided with a connecting hole 23, the inside of the bearing body 24 is installed with an installation plate 25, the inside of the installation plate 25 is provided with a through hole 26, so as to completely lubricate the inside and outside of the bearing body 24; the inside of one side of the upper shell 2 is clampingly connected with a plug 3, the bottom side of the upper shell 2 is fixedly connected with an oil injection pipe 4, the oil injection hole clamped by the plug 3 is communicated with the oil injection pipe 4; the output shaft 5 is rotatably connected in the inside of the upper shell 2, so as to inject lubricating oil into the reducer.

[0036] By pulling the plug 3 to open the oil hole, the lubricating oil is smoothly injected into the inside of the reducer through the oil hole and the oil pipe 4, the input shaft 15 starts to rotate after being started by the external driving device, the rotation of the input shaft 15 drives the output gear 16 to rotate, the rotation of the output gear 16 further drives the reduction gear 17 to rotate, the rotation of the reduction gear 17 drives the transition shaft 19 to rotate, the rotation of the transition shaft 19 drives the reduction gear 18 to rotate, and the rotation of the reduction gear 18 finally drives the output reduction gear 20 to rotate, the rotation of the output reduction gear 20 drives the output shaft 5 to rotate, thereby realizing the reduction effect. In the process of gear transmission, the vibration of the output gear 16, the reduction gear 17, the reduction gear 18 and the output reduction gear 20 will stir the lubricating oil, so that it is evenly distributed to every corner of the reducer. Through the vibration of the gear, the lubricating oil can flow to each part that needs lubrication, especially the bearing body 24. Part of the lubricating oil is stored in the oil storage frame 14 to ensure that it can be replenished in time when needed, and the lubricating oil is further distributed by the oil storage ring 21 to ensure that it is evenly covered inside the bearing body 24. The oil blocking ring 22 controls the flow path of the lubricating oil to prevent too much or too little lubricating oil, ensuring the lubrication effect. The connecting hole 23 guides the lubricating oil to flow to the inner and outer surfaces of the bearing body 24, and the through hole 26 further ensures that the lubricating oil can flow to the inside and outside of the bearing body 24 to ensure sufficient lubrication. It realizes that the lubricating oil can be evenly distributed to each key component of the reducer, ensuring that each component can be fully lubricated, especially the efficient lubrication of the bearing body 24, which can significantly reduce wear and tear and improve operating efficiency. Good lubrication not only improves the operating efficiency of the reducer, but also prolongs its service life.

[0037] Working principle: when it is needed to inject lubricating oil into the inside of the reducer, the lubricating oil is injected into the inside of the reducer through the oil hole and the oil pipe 4 by pulling the plug 3, and the input shaft 15 is driven to rotate the output gear 16, and the reduction gear 17 is rotated to rotate the transition shaft 19, and the reduction gear 18 is rotated to rotate the output reduction gear 20 to rotate the output shaft 5, achieving the effect of reducing speed. At the same time, the lubricating oil is stirred under the vibration of the output gear 16, the reduction gear 17, the reduction gear 18 and the output reduction gear 20, so that it flows to every corner to lubricate the bearing body 24. At the same time, the lubricating oil flows to the inside and outside of the bearing body 24 under the action of the oil storage frame 14, the oil storage ring 21, the oil blocking ring 22, the connecting hole 23 and the through hole 26, which determines the lubrication state of the bearing body 24, ensuring that the lubricating oil can be evenly distributed to each key component of the reducer, especially the efficient lubrication effect of the bearing body 24, improving the operating efficiency of the reducer, and prolonging its service life.

[0038] When the reducer needs to be maintained, the bolt 8 is rotated by an external tool to rotate out of the inside of the movable rod 10, at the same time, the movable rod 10 is separated from the threaded rod 13, the movable rod 10 slides in the inside of the through slot 9, at the same time, the fixed ring 11 is driven to make the spring 12 no longer be pressed by the fixed ring 11, the fixed ring 11 is adhered to the inner wall of one side of the through slot 9 by the elastic force of the spring 12, the upper shell 2 is pulled to make the positioning rod 6 move out of the inside of the positioning hole 7 to disassemble the reducer, the reducer is conveniently and efficiently disassembled and maintained, the convenience of the maintenance work is improved, and the reliability and long-term performance of the reducer are ensured.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A speed reducer bearing lubrication mechanism comprising a lower case (1), characterized in that: The upper part of the lower shell (1) is connected with the upper shell (2), the bottom of the upper shell (2) is fixedly connected with the positioning assembly, the positioning assembly is used for preliminary installation and positioning of the upper shell (2) and the lower shell (1), the inside of the upper shell (2) is clampedly connected with the bolt (8), the threaded section of the bolt (8) is threadedly connected to the inside of the lower shell (1), the inside of the lower shell (1) is provided with the through groove (9), the inside of the through groove (9) is fixedly connected with the threaded rod (13), the outside of the threaded rod (13) is threadedly connected with the movable rod (10), the threaded section of the bolt (8) is threadedly connected to the inside of the movable rod (10), the outside of the movable rod (10) is fixedly connected with the fixed ring (11), one end of the fixed ring (11) is fixedly connected with the spring (12), the spring (12) is sleeved on the outside of the movable rod (10), the other end of the spring (12) is fixedly connected to the inside of the through groove (9).

2. A lubrication mechanism for a speed reducer bearing according to claim 1, characterized in that: The inside of the lower shell (1) is rotatably connected with the input shaft (15), the lower side of the outside of the input shaft (15) is clampedly connected with the bearing body (24), the upper side of the outside of the input shaft (15) is fixedly connected with the output gear (16), the output gear (16) is meshedly connected with the reduction large gear (17), the inside of the reduction large gear (17) is fixedly connected with the transition shaft (19), one end of the transition shaft (19) is rotatably connected to the inside of the lower shell (1), the upper side of the transition shaft (19) is fixedly connected with the reduction small gear (18), the reduction small gear (18) is meshedly connected with the output reduction gear (20), the inside of the output reduction gear (20) is fixedly connected with the output shaft (5), one end of the output shaft (5) is rotatably connected to the inside of the lower shell (1), the outside of the output gear (16), the reduction large gear (17) and the output reduction gear (20) is provided with the oil storage frame (14).

3. A lubrication mechanism for a speed reducer bearing according to claim 1, characterized in that: The positioning assembly comprises the positioning rod (6), the positioning rod (6) is fixedly connected to the bottom of the upper shell (2), the side of the through groove (9) is provided with the positioning hole (7), and the positioning rod (6) is clampedly connected in the positioning hole (7).

4. A lubrication mechanism for a speed reducer bearing according to claim 1, characterized in that: The movable rod (10) and the fixed ring (11) are slidably connected in the inside of the through groove (9).

5. A lubrication mechanism for a speed reducer bearing according to claim 2, characterized in that: The outside of the bearing body (24) is provided with the oil blocking ring (22), the outside of the oil blocking ring (22) is provided with the oil storage ring (21), and the inside of the oil blocking ring (22) and the oil storage ring (21) is provided with the connecting hole (23).

6. A lubrication mechanism for a speed reducer bearing according to claim 2, characterized in that: The inside of the bearing body (24) is provided with the mounting plate (25), and the inside of the mounting plate (25) is provided with the through hole (26).

7. A lubrication mechanism for a speed reducer bearing according to claim 1, characterized in that: The inside of the upper shell (2) is clampedly connected with the plug (3), the bottom of the upper shell (2) is fixedly connected with the oil injection pipe (4), the oil injection hole clamped by the plug (3) is communicated with the oil injection pipe (4).

8. A lubrication mechanism for a speed reducer bearing according to claim 2, characterized in that: The output shaft (5) is rotatably connected to the inside of the upper shell (2).