Lubricating device of transmission shaft

By designing a combination of oil storage chamber and oil seepage holes on the drive shaft, the problems of uneven lubrication and high cost of the drive shaft are solved, automatic uniform lubrication is achieved, the operational stability of the equipment is improved and the operating cost is reduced.

CN223953094UActive Publication Date: 2026-02-27JIANHU HAISHENG MACHINERY MFR
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Patent Information

Application Number
CN202520473180.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-27
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

During operation, the drive shaft generates heat and wear due to friction and wear, resulting in reduced transmission efficiency and frequent equipment failures. Existing lubrication methods are time-consuming, labor-intensive, or have complex structures and high costs, making it difficult to achieve uniform and continuous lubrication.

Method used

A transmission shaft lubrication device was designed, which adopts a combination structure of oil storage chamber, oil seepage micropores and oil-absorbing cotton pad. The lubricating oil is guided to the bearing surface through the oil seepage micropores to achieve automatic and uniform lubrication, reducing the frequency of manual intervention and cost.

Benefits of technology

It achieves uniform and continuous lubrication of the drive shaft, reduces the frequency and cost of manual intervention, and improves the operational stability and lifespan of the equipment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223953094U_ABST
    Figure CN223953094U_ABST
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Abstract

The utility model relates to the technical field of bearing sleeves, in particular to a lubricating device of a transmission shaft, which comprises a mounting sleeve, a bearing is mounted in the mounting sleeve, an oil storage cavity is arranged in a plate body of the mounting sleeve, lubricating oil is filled in the oil storage cavity, and oil seepage pores are arranged on the surface of the oil storage cavity. Lubricating oil in the oil storage cavity is guided to the bearing through the oil seepage thin holes. The lubricating device of the transmission shaft has the advantages that the lubricating oil is contained in the oil storage cavity, and the lubricating oil is guided to the surface of the bearing through the oil seepage fine holes. Along with rotation of the transmission shaft, lubricating oil can be lubricated between the inner ring and the outer ring of the bearing and between the transmission shaft and the inner ring of the bearing. By means of the automatic lubrication mode, the uniformity and continuity of lubrication are guaranteed, and the frequency and cost of manual intervention are greatly reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bearing sleeve field, concretely is a lubricating device of transmission shaft. BACKGROUND

[0002] In mechanical equipment, the transmission shaft as the key component of torque and rotation transmission, its running state directly affects the performance and life of the whole equipment. During the working process of the transmission shaft, heat and wear will be generated due to friction and wear, which not only reduces the transmission efficiency, but also may cause equipment failure. Therefore, effective lubrication of the transmission shaft is the key to ensure the stable operation of the equipment.

[0003] The traditional transmission shaft lubrication mode usually relies on manual smearing of lubricating oil or setting an independent lubrication system. However, these modes have many deficiencies. For example, manual smearing of lubricating oil not only consumes time and effort, but also is difficult to ensure the uniformity and continuity of lubrication; while the independent lubrication system can realize automatic lubrication, but its structure is complex, the cost is high, and the maintenance is difficult.

[0004] In view of the above problems, the utility model provides a lubricating device of transmission shaft, aiming at providing a transmission shaft lubrication solution with simple structure, low cost and good lubrication effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a lubricating device of transmission shaft to solve the problems in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a lubricating device of transmission shaft,

[0007] Including the mounting sleeve, the inside of the mounting sleeve is installed with the bearing, the plate body of the mounting sleeve is provided with the oil storage cavity, the inside of the oil storage cavity is provided with the lubricating oil, the surface of the oil storage cavity is provided with the oil seepage hole, and the oil seepage hole leads the lubricating oil in the inside of the oil storage cavity to the bearing.

[0008] Preferably, the mounting sleeve is a "convex" circular ring plate, the surface of the mounting sleeve is provided with the bolt hole,

[0009] The bolt hole is provided with a plurality of bolt holes, and the plurality of bolt holes are distributed in a circle with the inner ring opening of the mounting sleeve as the central axis.

[0010] Preferably, the inner ring opening of the mounting sleeve is provided with the reserved groove, the reserved groove is an annular groove, the outer ring of the bearing is fixed on the surface of the reserved groove, and the inner ring diameter of the bearing is smaller than the inner ring opening diameter of the mounting sleeve.

[0011] Preferably, the oil storage cavity is an annular groove, the oil seepage hole is provided with a plurality of oil seepage holes, and the plurality of oil seepage holes are arranged and distributed along the inner ring edge of the oil storage cavity.

[0012] Preferably, the inside of the oil storage cavity is fixed with an oil absorption cotton pad, the oil absorption cotton pad is a "convex" circular ring plate, and the oil absorption cotton pad covers the oil permeation fine hole.

[0013] Preferably, the surface of the mounting sleeve is provided with an oil injection hole, the oil injection hole is a "convex" circular opening, the inside of the oil injection hole is fixed with a rubber block, and the surface of the rubber block is provided with a pressure relief micro hole.

[0014] Compared with the prior art, the transmission shaft lubricating device has the following beneficial effects:

[0015] The transmission shaft lubricating device has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the present application;

[0017] Figure 2 It is a mounting sleeve and bearing connecting structure schematic view of the present application;

[0018] Figure 3 It is a front view of the present application structure;

[0019] Figure 4 It is Figure 3 It is a structure sectional view of the present application A-A;

[0020] Figure 5 It is Figure 4 It is an enlarged schematic view of the present application structure A;

[0021] Figure 6 It is a mounting sleeve structure schematic view of the present application.

[0022] In the figure: mounting sleeve 1, reserved groove 2, bearing 3, bolt hole 4, oil storage cavity 5, oil permeation fine hole 6, oil absorption cotton pad 7, oil injection hole 8, rubber block 9. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme of the present application clear, complete and the advantages more clear and obvious, the following will be further described in detail by combining the embodiments of the present application with the drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all the embodiments. They are used to explain the embodiments of the present application, and do not limit the embodiments of the present application. All other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Please refer to Figures 1-6 The utility model provides a technical scheme: a kind of lubricating device of transmission shaft, including mounting sleeve 1, mounting sleeve 1 is " convex " character circular ring plate, the surface of mounting sleeve 1 is equipped with bolt hole 4, bolt hole 4 is equipped with multiple, multiple bolt hole 4 is with the inner ring mouth of mounting sleeve 1 as central axis and is circularly distributed;The end of mounting sleeve 1 is inserted into the shaft seat socket of installing transmission shaft, why the surface of mounting sleeve 1 is equipped with bolt hole 4 is to fix the part of mounting sleeve 1 that protrudes from shaft seat socket after bolt is passed through bolt hole 4 on shaft seat.

[0025] The inside of mounting sleeve 1 is equipped with bearing 3, and the inner ring mouth of mounting sleeve 1 is equipped with reserved slot 2, which is an annular groove. The outer ring of bearing 3 is fixed to the surface of the reserved slot 2, and the inner ring diameter of bearing 3 is smaller than the inner ring mouth diameter of mounting sleeve 1. After fixing the outer ring of bearing 3 to the reserved slot 2, the inner ring of bearing 3 can rotate in the mounting sleeve 1. Insert the transmission shaft into the inner ring of bearing 3, and the bearing 3 fills the lubricating structure between the shaft seat and the transmission shaft.

[0026] An oil storage cavity 5 is formed in the plate body of the mounting sleeve 1. The oil storage cavity 5 is filled with lubricating oil. The surface of the oil storage cavity 5 is provided with oil seepage holes 6. The oil seepage holes 6 guide the lubricating oil inside the oil storage cavity 5 to the bearing 3. The oil storage cavity 5 is an annular groove. The oil seepage holes 6 are arranged along the inner ring edge of the oil storage cavity 5. An oil absorption cotton pad 7 is fixed inside the oil storage cavity 5. The oil absorption cotton pad 7 is a " convex " character circular ring plate. The oil absorption cotton pad 7 covers the oil seepage holes 6. An oil injection hole 8 is formed on the surface of the mounting sleeve 1. The oil injection hole 8 is a " convex " character circular opening. A rubber block 9 is fixed inside the oil injection hole 8. The surface of the rubber block 9 is provided with pressure relief micro-holes.

[0027] In use, after sucking lubricating oil with a needle tube, the needle is inserted through the rubber block 9, the lubricating oil in the needle tube is injected into the oil storage cavity 5, and then the needle is separated from the rubber block 9. The lubricating oil inside the oil storage cavity 5 soaks the oil absorption cotton pad 7. After the oil absorption cotton pad 7 is saturated, the lubricating oil absorbed by the oil absorption cotton pad 7 seeps out to the surface of the bearing 3 through the oil seepage holes 6. With the flow of lubricating oil, the inner and outer rings of the bearing 3 are lubricated by the lubricating oil, and the transmission shaft and the inner ring of the bearing 3 are also lubricated by the lubricating oil. Compared with the traditional independent lubricating system, the lubricating device provided by the utility model has a simpler structure and lower cost. At the same time, due to the use of oil absorption cotton pad and oil seepage hole design, the utilization rate of lubricating oil is higher, further reducing the use cost.

[0028] The detailed use process of the lubricating device of transmission shaft is as follows:

[0029] Make sure the shaft seat socket of the transmission shaft is clean and ready for installation. Prepare the lubricating oil and the syringe for subsequent injection into the oil storage cavity. Insert one end of the mounting sleeve 1 into the shaft seat socket of the transmission shaft. Make sure the bolt holes 4 of the mounting sleeve 1 are aligned with the corresponding holes on the shaft seat. Use the bolts to secure the part of the mounting sleeve 1 that extends out of the shaft seat socket to the shaft seat. Secure the outer ring of the bearing 3 on the inner reserved groove 2 of the mounting sleeve 1. Make sure the inner ring of the bearing 3 can rotate freely in the mounting sleeve 1. Insert the transmission shaft into the inner ring of the bearing 3, making sure the transmission shaft fits well with the bearing 3. Use the syringe to extract an appropriate amount of lubricating oil. Insert the tip of the needle through the surface of the rubber block 9 (the rubber block 9 is secured inside the oil injection hole 8). Slowly inject the lubricating oil in the syringe into the oil storage cavity 5 until the oil storage cavity 5 is filled. After the injection is completed, pull the needle out of the rubber block 9 and make sure the pressure relief micro-holes of the rubber block 9 can properly vent. The lubricating oil inside the oil storage cavity 5 will soak the oil absorbing cotton pad 7. When the oil absorbing cotton pad 7 is saturated, the lubricating oil absorbed by the oil absorbing cotton pad 7 will seep out through the oil seep holes 6 to the surface of the bearing 3. As the lubricating oil flows, the inner and outer rings of the bearing 3, as well as the transmission shaft and the inner ring of the bearing 3, will be adequately lubricated.

[0030] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A lubricating device for a propeller shaft, comprising a mounting sleeve (1), characterised in that: The bearing (3) is installed in the mounting sleeve (1), the plate body of the mounting sleeve (1) is provided with an oil storage cavity (5), the oil storage cavity (5) is filled with lubricating oil, the surface of the oil storage cavity (5) is provided with oil permeation holes (6), and the oil permeation holes (6) guide the lubricating oil in the oil storage cavity (5) to the bearing (3).

2. A lubricating device for a propeller shaft according to claim 1, characterized in that: The mounting sleeve (1) is a "convex" circular ring plate, the surface of the mounting sleeve (1) is provided with bolt holes (4), the bolt holes (4) are provided in plurality, and the plurality of bolt holes (4) are distributed in a circle with the inner ring opening of the mounting sleeve (1) as the central axis.

3. A lubricating device for a propeller shaft according to claim 1, characterized in that: The inner ring opening of the mounting sleeve (1) is provided with a reserved groove (2), the reserved groove (2) is an annular groove, the outer ring of the bearing (3) is fixed on the surface of the reserved groove (2), and the inner ring diameter of the bearing (3) is smaller than the inner ring opening diameter of the mounting sleeve (1).

4. A lubricating device for a propeller shaft according to claim 1, characterized in that: The oil storage cavity (5) is an annular groove, the oil permeation holes (6) are provided in plurality, and the plurality of oil permeation holes (6) are arranged along the inner ring edge of the oil storage cavity (5).

5. A lubricating device for a propeller shaft according to claim 1, characterized in that: The oil storage cavity (5) is internally fixed with an oil absorption cotton pad (7), the oil absorption cotton pad (7) is a "convex" circular ring plate, and the oil absorption cotton pad (7) covers the oil permeation holes (6).

6. A lubricating device for a propeller shaft according to claim 1, characterized in that: The surface of the mounting sleeve (1) is provided with an oil injection hole (8), the oil injection hole (8) is a "convex" circular opening, the oil injection hole (8) is internally fixed with a rubber block (9), and the surface of the rubber block (9) is provided with pressure relief micro-holes.