Automatic lubricating and oiling device for mine transmission shaft

By using a servo motor to drive the transmission gear to mesh with the internal ring gear, combined with the rigid guidance of the limit wheel and support wheel, the problems of uneven lubrication and inaccurate dynamic positioning of the transmission shaft are solved, realizing dynamic positioning and precise oil injection of the transmission shaft and improving the lubrication effect.

CN224414885UActive Publication Date: 2026-06-26CHANGCUN COAL MINE OF HENAN DAYOU ENERGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCUN COAL MINE OF HENAN DAYOU ENERGY
Filing Date
2025-07-03
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, uneven lubrication and inaccurate dynamic positioning of drive shafts lead to lubricant waste and poor lubrication performance.

Method used

A servo motor drives the transmission gear to mesh with the internal ring gear, causing the movable ring to rotate. Combined with the limit wheel and support wheel, a rigid guide is formed. With the help of a PLC control system and a positioning camera, dynamic positioning and precise oiling of the oiling parts are achieved.

Benefits of technology

It enables dynamic adjustment of the lubrication position of the drive shaft, improving lubrication uniformity and precision, and reducing lubricant waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to oiling device field, concretely speaking is a kind of automatic lubrication oiling device of mine transmission shaft, including main part, the side of main part is provided with automatic lubrication oiling subassembly, and automatic lubrication oiling subassembly includes positioning member and oiling member;Positioning member includes the fixed seat of installation in the top of main part, and the top fixed mounting of fixed seat has servo motor, and the output end fixed mounting of servo motor has transmission gear, and the side engagement connection of transmission gear has ring gear, and the outer surface fixed mounting of ring gear is in the inner surface of movable ring;Oiling member includes connecting plate, and connecting plate fixed mounting is between two movable rings;Through servo motor drive transmission gear and ring gear produce engagement fit, drive movable ring rotation, cooperate limit wheel and support wheel form rigid guide, make oiling member encircle transmission shaft movement, solved the problem of fixed oiling position in the prior art, adapt the lubrication point positioning demand of transmission shaft, improved lubrication uniformity.
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Description

Technical Field

[0001] This utility model relates to the field of oil injection devices, specifically an automatic lubrication and oil injection device for mining drive shafts. Background Technology

[0002] The drive shaft is an important component in a mechanical transmission system, and its lubrication is crucial for ensuring the normal operation of the equipment and extending its service life.

[0003] Chinese Patent No. CN202221208197.4 discloses an automatic lubrication device for a transmission shaft of a precision grinding machine, comprising a rotating shaft, a connecting shaft at one end of the rotating shaft, an oil tank inside the rotating shaft, a protective shell on the inner surface of the oil tank, a motor inside the protective shell, a rotating shaft at one end of the motor, an oil sealing plate on the outer surface of the rotating shaft, a first oil outlet hole on the outer surface of the oil sealing plate, an oil separating plate inside the rotating shaft, a second oil outlet hole on the outer surface of the oil separating plate, a rotating ring at the other end of the rotating shaft, an oil outlet device inside the rotating shaft, a third oil outlet hole on one side of the oil outlet device, an oil guide groove inside the rotating shaft, and an oil inlet pipe at one end of the rotating shaft.

[0004] As can be seen from the above, the oil supply can be controlled by the sealing plate, but this case still has the following shortcomings: First, the oil injection mechanism cannot dynamically adjust its position with the rotation of the drive shaft, and cannot adapt to the changes in the position of the lubrication point of the drive shaft, resulting in uneven lubrication.

[0005] Secondly, the lack of a dynamic positioning mechanism makes it difficult to accurately align the transmission shaft with the oil injection hole when it rotates, which can easily lead to a waste of lubricating oil.

[0006] Therefore, an automatic lubrication and oil injection device for mining drive shafts is proposed to address the above problems. Utility Model Content

[0007] To overcome the shortcomings of existing technologies and the problem of changing lubrication point positions on drive shafts, this utility model proposes an automatic lubrication and oil injection device for mining drive shafts.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows: The automatic lubrication and oil injection device for mining drive shafts of this utility model includes a main body, an automatic lubrication and oil injection component is provided on one side of the main body, the automatic lubrication and oil injection component includes a positioning component and an oil injection component; the positioning component includes a fixed seat installed on the top of the main body, a servo motor is fixedly installed on the top of the fixed seat, a transmission gear is fixedly installed on the output end of the servo motor, a ring internal gear is meshed on one side of the transmission gear, and the outer surface of the ring internal gear is fixedly installed on the inner surface of the movable ring; the oil injection component includes a connecting plate, the connecting plate is fixedly installed between two movable rings.

[0009] Preferably, the positioning component further includes four connecting blocks, each of which is rotatably mounted with a limiting wheel. The four limiting wheels are movably mounted on the outer surfaces of two movable rings, and a support wheel is movably mounted on the inner surface of one of the movable rings. The support wheel is rotatably mounted on the top of the fixed base.

[0010] Preferably, the oil injection component further includes an oil storage tank, which is fixedly installed on the top of the connecting plate. An oil delivery pipe is fixedly installed on one side of the oil storage tank, and an oil injection pump is fixedly installed at the other end of the oil delivery pipe. A positioning camera is fixedly installed at the bottom of the connecting plate.

[0011] Preferably, the oil injection component further includes an electric push cylinder, which is fixedly installed on the top of the connecting plate. An electric push rod is movably installed at the output end of the electric push cylinder. One end of the electric push rod is fixedly installed on the back side of the oil injection pump. An oil injection nozzle is fixedly installed at the output end of the oil injection pump.

[0012] Preferably, the main body includes a base, and a drive shaft is rotatably mounted on the top of the base.

[0013] Preferably, it also includes a PLC control system, which is electrically connected to the servo motor, electric push cylinder, oil pump, and positioning camera.

[0014] The advantages of this utility model are:

[0015] 1. This utility model, through the structural design of the positioning component, uses a servo motor to drive the transmission gear and the inner ring gear to mesh, thereby rotating the movable ring. This, together with the limiting wheel and the support wheel, forms a rigid guide, allowing the oil injection component to move around the transmission shaft. This solves the problem of fixed oil injection position in the prior art, meets the lubrication point positioning requirements of the transmission shaft, and improves lubrication uniformity.

[0016] 2. Through the structural design of the oiling component, the electric push cylinder pushes the oiling nozzle to dynamically fit the oiling hole via the electric push rod. Even if the drive shaft deviates slightly during rotation, elastic compensation can ensure accurate oiling, thus solving the problem of inaccurate dynamic positioning in the prior art. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the automatic lubrication and oil injection component of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the main structure of this utility model.

[0023] In the diagram: 1. Main body; 2. Automatic lubrication and oil injection assembly; 3. Positioning component; 4. Oil injection component; 11. Base; 12. Drive shaft; 31. Fixed seat; 32. Servo motor; 33. Transmission gear; 34. Ring internal gear; 35. Connecting block; 36. Limiting wheel; 37. Movable ring; 38. Support wheel; 41. Connecting plate; 42. Oil reservoir; 43. Electric push cylinder; 44. Positioning camera; 45. Electric push rod; 46. Oil injection pump; 47. Oil injection nozzle; 48. Oil delivery pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1-5 As shown, an automatic lubrication and oil injection device for mining drive shafts includes a main body 1. An automatic lubrication and oil injection assembly 2 is provided on one side of the main body 1. The automatic lubrication and oil injection assembly 2 includes a positioning component 3 and an oil injection component 4. The positioning component 3 includes a fixed seat 31 installed on the top of the main body 1. A servo motor 32 is fixedly installed on the top of the fixed seat 31. A transmission gear 33 is fixedly installed on the output end of the servo motor 32. A ring internal gear 34 is meshed on one side of the transmission gear 33. The outer surface of the ring internal gear 34 is fixedly installed on the inner surface of the movable ring 37. The oil injection component 4 includes a connecting plate 41, which is fixedly installed between two movable rings 37.

[0026] During operation, the servo motor 32 drives the transmission gear 33 to rotate after being powered on. Through meshing, the internal ring gear 34 rotates, which in turn causes the movable ring 37 to move in a circular motion around the transmission shaft 12, thereby realizing the ring displacement of the oil injection part 4 to adapt to the positioning requirements of the oil injection hole at different positions of the transmission shaft 12.

[0027] Furthermore, the positioning component 3 also includes four connecting blocks 35, each of which is rotatably mounted with a limiting wheel 36. The four limiting wheels 36 are respectively movably mounted on the outer surface of two movable rings 37. A support wheel 38 is movably mounted on the inner surface of one of the movable rings 37, and the support wheel 38 is rotatably mounted on the top of the fixed base 31.

[0028] During operation, the limiting wheel 36 restricts the radial displacement of the movable ring 37 through rolling friction, while the support wheel 38 bears the axial load of the movable ring 37. The two work together to form a rigid guide structure, ensuring that the movable ring 37 rotates stably without shaking, and making the movement trajectory of the oil injection component 4 accurately match the position of the oil injection hole of the transmission shaft 12.

[0029] Furthermore, the oil injection component 4 also includes an oil storage tank 42, which is fixedly installed on the top of the connecting plate 41. An oil delivery pipe 48 is fixedly installed on one side of the oil storage tank 42, and an oil injection pump 46 is fixedly installed at the other end of the oil delivery pipe 48. A positioning camera 44 is fixedly installed at the bottom of the connecting plate 41.

[0030] During operation, the oil storage tank 42 stores lubricating oil, and the oil injection pump 46 draws the lubricating oil from the oil storage tank 42 through negative pressure and injects it into the oil injection hole of the drive shaft 12 through the oil injection nozzle 47; the positioning camera 44 scans the surface of the drive shaft in real time, identifies the position of the oil injection hole and feeds it back to the PLC control system, providing data support for oil injection positioning.

[0031] Furthermore, the oil injection component 4 also includes an electric push cylinder 43, which is fixedly installed on the top of the connecting plate 41. An electric push rod 45 is movably installed at the output end of the electric push cylinder 43. One end of the electric push rod 45 is fixedly installed on the back side of the oil injection pump 46. An oil injection nozzle 47 is fixedly installed at the output end of the oil injection pump 46.

[0032] During operation, when the positioning camera 44 detects the oil filling hole alignment signal, the PLC control system drives the electric push cylinder 43 to extend the electric push rod 45, which pushes the oil pump 46 to move the oil filling nozzle 47 towards the drive shaft 12 until the oil filling nozzle 47 is tightly fitted to the oil filling hole to avoid lubricating oil leakage and ensure oil filling accuracy.

[0033] Furthermore, the main body 1 includes a base 11, and a drive shaft 12 is rotatably mounted on the top of the base 11;

[0034] During operation, the drive shaft 12 is mounted on the base 11 and keeps rotating. The PLC system dynamically adjusts the speed of the servo motor 32 and the rotation angle of the movable ring 37 based on the real-time data from the positioning camera 44 to ensure that the oil nozzle 47 is precisely aligned with the oil injection hole.

[0035] Furthermore, it also includes a PLC control system, which is electrically connected to the servo motor 32, the electric push cylinder 43, the oil pump 46, and the positioning camera 44.

[0036] During operation, the positioning camera 44 continuously scans the surface of the drive shaft 12, and transmits the collected image data such as the position, size, and spacing of the oil injection hole to the PLC control system in real time. The PLC control system analyzes and processes the data through the built-in image recognition algorithm, calculates the deviation value between the precise coordinates of the oil injection hole and the current position of the oil injection nozzle 47. Based on this data, the PLC control system first sends a command to the servo motor 32 to dynamically adjust its speed and rotation angle, drive the movable ring 37 to move the oil injection component 4 in a ring displacement, so that the oil injection nozzle 47 initially approaches the oil injection hole.

[0037] Working principle: The drive shaft 12 is installed on the base 11. The PLC control system activates the positioning camera 44 to scan the surface of the drive shaft, identify the position of the oil injection hole and generate coordinate data. The servo motor 32 drives the transmission gear 33 to rotate, which in turn drives the movable ring 37 to rotate through the ring internal gear 34. The limit wheel 36 and the support wheel 38 ensure the stable rotation of the movable ring 37. When the positioning camera 44 detects that the oil injection hole is aligned, the PLC controls the electric push cylinder 43 to extend the electric push rod 45, which pushes the oil injection pump 46 to make the oil injection nozzle 47 fit the oil injection hole. At the same time, the oil pump 46 draws lubricating oil from the oil reservoir 42 and injects it into the drive shaft 12. According to the operating parameters of the drive shaft 12, the PLC system automatically adjusts the oil injection frequency and oil volume. When running at low speed, the oil volume is reduced, and when running at high speed and under heavy load, the oil volume is increased to achieve lubrication on demand. When the oil nozzle 47 approaches the oil injection hole, the PLC control system accurately controls the extension and retraction of the electric push cylinder 43 based on the real-time deviation data fed back by the positioning camera 44. The electric push rod 45 pushes the oil pump 46 so that the oil nozzle 47 accurately fits the oil injection hole.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic lubrication and oil injection device for mining drive shafts, comprising a main body (1), characterized in that: An automatic lubrication and oil injection assembly (2) is provided on one side of the main body (1). The automatic lubrication and oil injection assembly (2) includes a positioning component (3) and an oil injection component (4). The positioning component (3) includes a fixed seat (31) installed on the top of the main body (1). A servo motor (32) is fixedly installed on the top of the fixed seat (31). A transmission gear (33) is fixedly installed at the output end of the servo motor (32). A ring internal gear (34) is meshed on one side of the transmission gear (33). The outer surface of the ring internal gear (34) is fixedly installed on the inner surface of the movable ring (37). The oil injection component (4) includes a connecting plate (41). The connecting plate (41) is fixedly installed between the two movable rings (37).

2. The automatic lubrication and oil injection device for mining drive shafts according to claim 1, characterized in that: The positioning component (3) also includes four connecting blocks (35), each of which is rotatably mounted with a limiting wheel (36). The four limiting wheels (36) are respectively movably mounted on the outer surfaces of two movable rings (37). A support wheel (38) is movably mounted on the inner surface of one of the movable rings (37). The support wheel (38) is rotatably mounted on the top of the fixed base (31).

3. The automatic lubrication and oil injection device for mining drive shafts according to claim 1, characterized in that: The oil injection component (4) also includes an oil storage tank (42), which is fixedly installed on the top of the connecting plate (41). An oil delivery pipe (48) is fixedly installed on one side of the oil storage tank (42), and an oil injection pump (46) is fixedly installed at the other end of the oil delivery pipe (48). A positioning camera (44) is fixedly installed at the bottom of the connecting plate (41).

4. The automatic lubrication and oil injection device for mining drive shafts according to claim 3, characterized in that: The oil injection component (4) also includes an electric push cylinder (43), which is fixedly installed on the top of the connecting plate (41). An electric push rod (45) is movably installed at the output end of the electric push cylinder (43). One end of the electric push rod (45) is fixedly installed on the back side of the oil injection pump (46). An oil injection nozzle (47) is fixedly installed at the output end of the oil injection pump (46).

5. The automatic lubrication and oil injection device for mining drive shafts according to claim 1, characterized in that: The main body (1) includes a base (11), and a drive shaft (12) is rotatably mounted on the top of the base (11).

6. The automatic lubrication and oil injection device for mining drive shafts according to claim 5, characterized in that: It also includes a PLC control system, which is electrically connected to the servo motor (32), the electric push cylinder (43), the oil pump (46), and the positioning camera (44).

Citation Information

Patent Citations

  • Automatic transmission shaft lubricating device for precision grinding machine

    CN217540332U