Vertical motor bearing oil reservoir device

Abstract

The utility model discloses a vertical motor bearing oil storage box device relates to vertical motor's lubrication and maintenance technical field, the utility model discloses the main two half formula guide rail support through bolt fixed in motor end cover and extend along the horizontal direction, the oil storage box is connected with the guide rail support through the flanging of its top and constitutes the slide rail, and can help the U -shaped handle of one end welding between the smooth pull of oil storage position and oil discharge position, the elastic component adopts the plate spring of installation in the outside of guide rail support, and the pre -tightening force is added to the oil storage box to prevent its running and shift, the insulation component adopts the epoxy board frame with long strip oil hole, and is installed between the oil storage box, guide rail support and bearing assembly, ensures the bearing insulation performance. The utility model solves the problem that the traditional oil discharge device is inconvenient to operate and the oil is not discharged completely, realizes the convenient, thorough cleaning of waste oil through the drawer type pull structure, and remarkably improves the maintenance efficiency and equipment operation reliability.

Description

Technical Field

[0001] This utility model relates to the field of lubrication and maintenance technology of vertical motors, and in particular to a bearing oil reservoir device for vertical motors. Background Technology

[0002] Vertical motors are widely used in many industrial fields such as water pumps, fans, and machine tools due to their compact structure and small footprint. To ensure the long-term stable operation of their core component, the bearings, lubrication with grease is typically required. Regular grease replacement and replenishment are essential steps in the operation and maintenance of the motor. Currently, the industry commonly uses traditional double-pipe pull-out oil draining devices for vertical motor bearings.

[0003] This traditional structure typically includes an oil drain seat fixed below the bearing housing. Inside the oil drain seat are a fixed inner oil drain pipe and a retractable outer oil drain pipe. When oil drainage is required, the operator pulls the outer oil drain pipe downwards from the oil drain seat, allowing waste grease to be discharged outside the motor through the channel formed by the inner and outer oil drain pipes. After drainage is complete, the outer oil drain pipe is pushed back into its original position to prevent external impurities from entering.

[0004] However, in practical applications, the above-mentioned traditional structure has revealed many inherent defects, mainly as follows:

[0005] First, operation is extremely inconvenient. Vertical motors typically have limited installation space, and the bearings are often located inside the motor or near the base, further restricting operating space. Operators must overcome the viscous resistance of the grease when pulling out or removing oil pipes, resulting in constrained movement and requiring considerable time and effort. This is especially true for equipment installed in underground pump rooms or on elevated platforms, where the difficulty and danger of maintenance work increase significantly.

[0006] Secondly, the oil drainage is not smooth and the cleaning is incomplete. Due to the long and winding path of the oil drain pipe, coupled with the high viscosity and poor fluidity of the waste grease, it is very easy for it to adhere and remain on the inner wall of the pipe and in the dead corners at the bottom of the bearing housing when draining oil by gravity alone. This structure cannot form an effective negative pressure or mechanical scraping action, resulting in a large amount of contaminated old grease not being completely drained and remaining inside the bearing.

[0007] Third, it can easily lead to bearing malfunctions. The consequences of incomplete oil drainage are serious. Old grease remaining in the bearing housing mixes with newly injected grease, and the metal particles, oxide deposits, and other contaminants it contains significantly reduce the lubricating performance of the new grease. This contaminated grease circulates within the bearing raceway, accelerating wear on the raceway and rolling elements. More importantly, contaminants and deteriorated grease increase the coefficient of friction and intensify internal temperature rise during bearing operation.

[0008] Fourth, it can trigger a chain reaction of system problems. An abnormal rise in bearing temperature can directly trigger an alarm in the motor's built-in temperature monitoring system, and may even lead to unplanned equipment shutdowns, affecting the continuous and stable operation of the production line. Prolonged operation in high-temperature and polluted environments will drastically shorten the bearing's lifespan, increasing not only spare parts costs and maintenance frequency, but also posing a significant safety hazard: sudden bearing failure could damage the entire machine.

[0009] In summary, existing dual-pipe pull-out oil draining devices, limited by the structural characteristics of vertical motors, are no longer able to meet the high requirements of modern industrial equipment for ease of maintenance, operational reliability, and predictability of condition. Therefore, there is an urgent need in this field for a novel oil draining device that can fundamentally solve the above problems, enabling convenient, thorough, and efficient removal of waste grease from vertical motor bearings, thereby ensuring the long-term safe and stable operation of the motor. Utility Model Content

[0010] This utility model proposes a vertical motor bearing oil storage box device, which solves the problem of cumbersome oil drainage operation and incomplete oil drainage caused by the limited operating space of vertical motors.

[0011] The core technical solution of this utility model is as follows: a guide rail bracket is installed on the motor end cover and extends along the axis perpendicular to the motor. An oil storage box is slidably installed on the guide rail bracket. One end of the oil storage box is connected to the oil outlet of the bearing assembly, and the other end is connected to a U-shaped handle. Dragging the U-shaped handle can move the oil storage box back and forth between the oil storage position and the oil discharge position, making the oil discharge operation convenient, fast, and thorough.

[0012] The specific solution of this utility model is as follows:

[0013] A vertical motor bearing oil reservoir device includes two split guide rail brackets. The guide rail brackets are mounted on the motor end cover and extend along a direction perpendicular to the motor axis. An oil reservoir is slidably mounted on the guide rail brackets. One end of the oil reservoir is connected to the oil outlet of the bearing assembly, and the other end is connected to a U-shaped handle. Dragging the U-shaped handle can move the oil reservoir back and forth between the oil storage position and the oil discharge position.

[0014] Furthermore, the oil storage box includes a first flange and a vertical wall, the first flange and the vertical wall forming a sliding groove, and the guide rail bracket includes a second flange, the sliding groove sliding along the second flange.

[0015] Furthermore, it includes an elastic component, the fixed end of which is connected to the guide rail bracket. When the oil storage box is in the oil storage position, the free end of the elastic component abuts against the oil storage box and applies a preload.

[0016] Furthermore, it includes an oil baffle plate connected between the two split guide rail brackets. When the oil storage box is in the oil storage position, the oil baffle plate prevents grease from splashing.

[0017] Furthermore, it includes an insulating frame installed at the oil outlet to isolate the bearing assembly, the guide rail bracket, and the oil reservoir.

[0018] Furthermore, it includes a protective plate, which is welded to the end of the U-shaped handle away from the oil reservoir and connected to the outer wall of the base.

[0019] Furthermore, the outer wall of the base is provided with a window for the oil storage box device to pass through, and the protective plate seals the window according to the motor protection level.

[0020] Furthermore, the guide rail bracket has a notch at its contact end near the bearing assembly, according to the size of the bearing assembly, so that the guide rail bracket fits snugly against the bearing assembly.

[0021] Furthermore, the insulating frame is made of epoxy board, and the insulating frame has an oil drain hole.

[0022] This utility model has the following beneficial effects:

[0023] 1. It has made the oil draining operation more convenient and efficient, greatly improving maintenance efficiency.

[0024] This invention utilizes a sliding rail connection structure consisting of a split-type guide rail bracket and an oil reservoir with a flange, along with an extended U-shaped handle welded to the oil reservoir, to change the traditional laborious operation mode of pulling out oil pipes. Maintenance personnel no longer need to laboriously pull out heavy and sticky oil pipes in confined spaces; they can easily and smoothly pull out and push in the entire oil reservoir using the handle. This "drawer-style" design concept makes oil draining operations simple and intuitive, greatly reducing labor intensity, shortening maintenance time, and improving work efficiency.

[0025] 2. It ensures the thoroughness of oil drainage and the reliability of oil collection, effectively preventing bearing contamination.

[0026] This device replaces the long, narrow pipes with an integrated oil collection box, providing ample oil collection capacity and preventing grease residue in complex pipes. Simultaneously, the oil baffle plate added inside the guide rail bracket effectively blocks and guides waste grease ejected by the bearing, ensuring it all collects within the oil box. This fundamentally solves the problems of incomplete oil drainage and splashing leakage inherent in traditional structures, guaranteeing a clean bearing working environment and eliminating bearing contamination and overheating caused by waste oil accumulation at the source.

[0027] 3. Stable and reliable operation, effectively eliminating component movement and abnormal noise caused by vibration.

[0028] By installing an elastic component on the outside of the guide rail bracket, which contacts the oil reservoir and applies a continuous preload, the self-locking function of the oil reservoir in its operating position is cleverly achieved. This design ensures that the oil reservoir will not experience any unexpected displacement or movement under vibration conditions such as motor operation, start-up, or shutdown, thereby avoiding collisions, abnormal noises, or even damage caused by loose components, and greatly improving the stability of the entire device and the reliability of equipment operation.

[0029] 4. It integrates insulation functions, fundamentally ensuring the electrical insulation safety of the bearing.

[0030] This invention adds an insulating frame made of epoxy board at the contact point between the guide rail bracket and the oil reservoir and the bearing. The slotted hole in the middle of this frame ensures smooth drainage of waste oil while physically isolating the oil reservoir, guide rail bracket, and bearing from direct contact. This key design completely avoids potential electrical connections between the end cap and the bearing caused by the oil reservoir, prevents the formation of a bearing current loop, effectively protects the bearing from electro-corrosion damage, ensures the bearing's insulation performance, and extends its service life.

[0031] 5. The structure is modular, the sealing is good, and it has good versatility and expandability.

[0032] The device uses a split-type guide rail bracket fixed with bolts, which is convenient to install and highly adaptable. The protective plate welded to the handle can be easily sealed by adding gaskets or sealing strips according to different site environments and protection level requirements, which can easily meet the standards from IP54 to IP55 and even higher protection levels, enhancing the product's adaptability in different application scenarios.

[0033] In summary, this utility model not only solves the core drawbacks of traditional oil draining devices, such as inconvenient operation and incomplete oil draining, but also endows them with excellent vibration resistance and insulation performance. It realizes the upgrade of vertical motor bearing oil draining devices from single function to a composite technology that is efficient, reliable, safe, and easy to maintain, and has extremely high market application value and promotion prospects. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the assembly of the bearing oil reservoir device in one embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the oil storage box in the oil storage position in one embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the oil storage box in the oil discharge position in one embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Protective plate; 2. U-shaped handle; 3. Guide rail bracket; 4. Oil baffle; 5. Elastic component; 6. Oil reservoir; 7. Insulating frame. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "multiple" means two or more.

[0041] Figure 1 This is a schematic diagram of the assembly of the bearing oil reservoir 6 in one embodiment of the present invention. The present invention provides a vertical motor bearing oil reservoir 6 device, including two split guide rail brackets 3. The guide rail brackets 3 are mounted on the motor end cover and extend along a direction perpendicular to the motor axis. The oil reservoir 6 is slidably mounted on the guide rail brackets 3. One end of the oil reservoir 6 is connected to the oil outlet of the bearing assembly, and the other end is connected to a U-shaped handle 2. Dragging the U-shaped handle 2 can move the oil reservoir 6 back and forth between the oil storage position and the oil discharge position.

[0042] The guide rail bracket 3 assembly forms the foundation for the entire device. It comprises two split-type guide rail brackets 3. The split-type design facilitates on-site installation and adjustment during motor shutdown maintenance. The two guide rail brackets 3 are symmetrically and reliably fixed to the motor end cover using bolts.

[0043] The guide rail bracket 3 is installed in a horizontal direction, perpendicular to the motor axis. This allows the oil collection box 6 to be pulled out horizontally, perfectly adapting to the relatively spacious side space of the vertical motor and greatly facilitating operation. At the end of the guide rail bracket 3 near the motor bearing housing, an arc-shaped notch is precisely machined according to the outer diameter of the bearing assembly. This notch ensures that the guide rail bracket 3 fits tightly against the shape of the bearing assembly, ensuring structural stability and laying the foundation for the smooth flow of waste grease.

[0044] The oil collection box 6 includes a first flange and a vertical wall, which together form a sliding groove. The guide rail bracket 3 includes a second flange, and the sliding groove slides along the second flange. The oil collection box 6 is the core component for collecting waste oil. It includes a box-shaped oil collection box 6 with an open top. The top two edges of the oil collection box 6 are flanged to form the first flange. The first flange cooperates with the corresponding second flange on the guide rail bracket 3 to form a sliding rail connection structure. This allows the oil collection box 6 to slide smoothly on the guide rail bracket 3 in a direction perpendicular to the motor axis, like a drawer.

[0045] At the end of the oil reservoir 6 furthest from the bearing assembly, a U-shaped handle 2 is welded and fixed. This handle not only provides a point of force for manual operation, but its elongated U-shaped structure also ensures that the operator has enough space for their hands, making it easy to apply force even in space-constrained installation environments.

[0046] Working position definition: Oil reservoir 6 has two clearly defined working positions:

[0047] Oil storage level: such as Figure 2 As shown, when the U-shaped handle 2 is pushed to the position closest to the bearing assembly, the inner cavity of the oil reservoir 6 is precisely aligned with and tightly fitted against the oil outlet of the bearing assembly. At this time, the waste grease thrown out of the bearing will accurately fall into the oil reservoir 6 and be collected.

[0048] Oil level: such as Figure 3 As shown, when waste oil needs to be cleaned, the operator can pull the U-shaped handle 2 outward to remove the entire oil collection box 6 from the guide rail bracket 3 to a convenient and predetermined position. From this position, the operator can safely and conveniently clean and recycle the waste grease accumulated in the oil collection box 6.

[0049] By repeatedly dragging the U-shaped handle 2, the oil collection box 6 can be switched between the "oil storage level" and the "oil drain level", completing the entire process from collection to cleaning.

[0050] Furthermore, to ensure that the oil reservoir 6 does not move on its own under the vibration of the motor during operation, this invention provides an elastic component 5. The fixed end of the elastic component 5 is connected to the guide rail bracket 3. When the oil reservoir 6 is in the oil storage position, the free end of the elastic component 5 abuts against the oil reservoir 6 and applies a preload. In one possible embodiment, the elastic component 5 is a leaf spring. The leaf spring is fixedly installed on the outer surface of the guide rail bracket 3 by screws. When the oil reservoir 6 is pushed into the "oil storage position", the free end of the leaf spring will elastically press against the first flange of the oil reservoir 6, thereby applying a continuous preload. This preload generates sufficient friction to effectively counteract vibrations caused by motor operation or other reasons, preventing the oil reservoir 6 from unexpectedly shifting or making abnormal noises, and ensuring its stability and reliability in the working position.

[0051] Furthermore, the vertical motor bearing oil storage box 6 device includes an oil baffle 4, which is connected between two split guide rail brackets 3. When the oil storage box 6 is in the oil storage position, the oil baffle 4 blocks grease from splashing.

[0052] Furthermore, to prevent the formation of a bearing current loop due to the connection of metal components, which could lead to electrical corrosion of the bearing, this invention integrates an insulating component. This component mainly includes an insulating frame 7. The insulating frame 7 is preferably made of high-strength epoxy resin board (epoxy board).

[0053] The insulating frame 7 is designed to be installed between the arc-shaped notch of the guide rail bracket 3 and the oil outlet of the bearing assembly, and also between the oil reservoir 6 and the bearing assembly. A long, narrow oil drain hole is located in the middle of the insulating frame 7. The function of this drain hole is to ensure that waste grease discharged from the oil outlet of the bearing assembly can pass through unimpeded and fall into the oil reservoir 6, while physically isolating the metal guide rail bracket 3 and oil reservoir 6 from any direct contact with the bearing assembly. This completely avoids bearing insulation failure that may result from the installation of this device, protecting the bearing from electro-corrosion damage.

[0054] Furthermore, to meet the protection levels (such as IP54, IP55) requirements of different field environments, this utility model also includes an external protective component. This component mainly includes a protective plate 1. The protective plate 1 is welded or fixed to the U-shaped handle 2 by other means. When the oil reservoir 6 is in the "oil reservoir position," the protective plate 1 precisely covers the window reserved on the outer wall of the base for the handle and the oil reservoir 6. The window allows the oil reservoir 6 to pass through, and the protective plate 1 seals the window according to the motor's protection level. The protective plate 1 has mounting holes, allowing it to be fastened to the outer wall of the base with bolts. To achieve a good sealing effect, a rubber gasket or O-ring can be added between the contact surface between the protective plate 1 and the outer wall of the base. By selecting gaskets of different materials and thicknesses, different levels of protection, from dustproof to water spray protection, can be flexibly met.

[0055] The working principle of the vertical motor bearing oil storage box 6 provided by this utility model is as follows: During normal motor operation, the oil storage box 6 is located in the "oil storage position". Waste grease discharged from the bearing assembly due to operation, aging, or replacement is thrown out under centrifugal force and falls into the oil storage box 6 through the elongated oil drain hole on the insulating frame 7 for collection. When maintenance is required, loosen the fixing bolts of the protective plate 1, pull the U-shaped handle 2 outward, and the oil storage box 6 full of waste oil can be slid to the "oil drain position" for cleaning. After cleaning, push the clean oil storage box 6 back, the spring plate 7 automatically locks it, and finally tighten the protective plate 1. The whole process is safe, simple, clean, and thorough.

[0056] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical motor bearing oil reservoir device, characterized in that, It includes two split-type guide rail brackets, which are mounted on the motor end cover and extend along a direction perpendicular to the motor axis. An oil reservoir is slidably mounted on the guide rail bracket. One end of the oil reservoir is connected to the oil outlet of the bearing assembly, and the other end is connected to a U-shaped handle. Dragging the U-shaped handle can move the oil reservoir back and forth between the oil storage position and the oil discharge position.

2. The vertical motor bearing oil reservoir device according to claim 1, characterized in that, The oil storage box includes a first flange and a vertical wall, the first flange and the vertical wall forming a sliding groove, and the guide rail bracket includes a second flange, the sliding groove sliding along the second flange.

3. The vertical motor bearing oil reservoir device according to claim 1, characterized in that, It includes an elastic component, the fixed end of which is connected to the guide rail bracket. When the oil storage box is in the oil storage position, the free end of the elastic component abuts against the oil storage box and applies a preload.

4. The vertical motor bearing oil reservoir device according to claim 1, characterized in that, It includes an oil baffle plate, which is connected between two split guide rail brackets. When the oil storage box is in the oil storage position, the oil baffle plate prevents grease from splashing.

5. The vertical motor bearing oil reservoir device according to claim 1, characterized in that, It includes an insulating frame installed at the oil outlet to isolate the bearing assembly, the guide rail bracket, and the oil reservoir.

6. The vertical motor bearing oil reservoir device according to claim 1, characterized in that, It includes a protective plate, which is welded to the end of the U-shaped handle away from the oil reservoir and connected to the outer wall of the base.

7. The vertical motor bearing oil reservoir device according to claim 6, characterized in that, The outer wall of the base has a window for the oil storage box device to pass through, and the protective plate seals the window according to the motor protection level.

8. The vertical motor bearing oil reservoir device according to claim 1, characterized in that, The guide rail bracket has a notch at its contact end near the bearing assembly, according to the size of the bearing assembly, so that the guide rail bracket fits snugly against the bearing assembly.

9. The vertical motor bearing oil reservoir device according to claim 5, characterized in that, The insulating frame is made of epoxy board and has an oil drain hole.

Images