Automatic bearing oiling device

Abstract

The utility model relates to mechanical equipment lubrication maintenance technical field, concretely is a kind of bearing automatic oiling device, including cover and controller, cover top is equipped with support frame and cylinder, cylinder drive cylinder axle extends to oil storage warehouse inside and is connected to stop disc and sealing strip, stop disc cooperation blocks oil storage warehouse oil outlet, oil storage warehouse lower intercommunication oil storage warehouse, install oil pump in cover, oil pump suction oil end intercommunication oil storage warehouse, oil outlet end connection oil distributor.The utility model is sealed by cylinder drive stop disc down removal, cooperation oil storage warehouse buffer and oil pump pressurization, solve the existing device non-working state gravity drip and oil supply pressure unstable problem, simultaneously using magnetic attraction head adsorption fixed on bearing body surface, oil nozzle connector automatic centering and form closed passage, realized fast positioning and sealing butt joint, greatly simplified field operation process, improved the degree of automation and cleanliness of oiling operation.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment lubrication and maintenance technology, and in particular to an automatic bearing oil injection device. Background Technology

[0002] As the core component supporting the rotation of rotating bodies in various mechanical equipment, the stability of the bearing's operating state directly determines the machining accuracy and service life of the entire equipment. In order to reduce the internal friction coefficient of the bearing, reduce wear, and remove the heat generated during operation, it is necessary to add lubricating oil to the bearing regularly and in a fixed quantity to maintain its good working performance.

[0003] Current bearing lubrication operations rely on manual hand-held grease guns to add oil one by one, or on gravity drip cups installed on the equipment for passive lubrication. Although these traditional methods have solved the lubrication needs to some extent, their structural drawbacks are becoming increasingly apparent when faced with the high-intensity and high-efficiency production environment of modern industry.

[0004] Existing oil filling devices lack effective active on / off control mechanisms. The oil passage between the oil storage container and the oil filling port is often unobstructed or only roughly adjusted by manual valves. This results in the lubricating oil in the container continuing to drip or leak under gravity when the machinery is stopped, causing not only a serious waste of lubricating oil resources, but also pollution of the equipment surface and the work site environment, increasing the cleaning burden. At the same time, the connection of traditional oil filling pipelines requires screwing and fixing, which is cumbersome and time-consuming. Especially in narrow or hidden spaces, manual connection is difficult and it is hard to ensure the sealing of the interface, resulting in overflow during the oil filling process. This cannot meet the requirements of automated, clean and efficient maintenance.

[0005] Therefore, this utility model proposes an automatic bearing oil injection device to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing bearing oil injection devices, such as the lack of an effective active sealing mechanism in the non-working state, which leads to the waste of lubricating oil due to gravity dripping, and the cumbersome pipeline connection method which leads to low on-site operation efficiency and easy interface leakage, this utility model aims to provide an automatic bearing oil injection device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an automatic bearing oiling device, including a housing and a controller fixedly installed on the outer wall of the housing. A support frame is fixedly connected to the top of the housing, and a cylinder is fixedly installed on the support frame. A cylinder shaft is slidably connected inside the cylinder. The bottom end of the cylinder shaft extends vertically into an oil storage tank fixed inside the housing and is fixedly connected to a blocking plate. A sealing strip is fixedly connected to the outer wall of the blocking plate. The blocking plate seals the oil outlet of the oil storage tank. An oil distribution tank is fixedly connected to the bottom of the oil storage tank. An oil pump is fixedly installed inside the housing. The oil suction end of the oil pump is connected to the oil distribution tank. An oil distributor is connected to the oil outlet flange of the oil pump. An oil pipe is threadedly connected to the side of the oil distributor away from the oil pump. A magnetic head is fixedly connected to the bottom of the oil pipe. An oil nozzle connector is integrally formed at the bottom of the magnetic head and abuts against the oiling port of the bearing body.

[0008] Preferably, in order to ensure the accurate transmission of driving action and the reliability of sealing, the cylinder shaft slides back and forth along the central axis of the oil reservoir. When the cylinder shaft slides downward under force, it can drive the plug and the sealing strip to move downward synchronously, so that the plug and the sealing strip quickly disengage from the oil outlet of the oil reservoir, and the oil reservoir and the oil distribution chamber are connected to each other, thereby opening the oil circuit.

[0009] Preferably, in order to ensure the stability and buffering effect of the oil circuit system, the oil distribution chamber is fixedly connected to the bracket inside the cover, and the oil distribution chamber is located directly below the oil storage chamber. The oil distribution chamber is used to receive and buffer the lubricating oil flowing in from the oil storage chamber, eliminate flow rate fluctuations, and provide a stable oil suction source for the oil pump.

[0010] Preferably, in order to improve the installation strength and seismic performance of the power components, the oil pump is fixed to the inner bottom wall of the housing by bolts. The oil pump is used to mechanically pressurize the extracted lubricating oil and stably deliver the pressurized lubricating oil to the oil distributor.

[0011] Preferably, in order to achieve stable oil flow distribution and pressure balance, the oil distributor has an internal diversion channel. One end of the diversion channel is connected to the oil outlet of the oil pump, and the other end of the diversion channel is connected to the oil pipe. The oil distributor is used to rectify the high-pressure oil to ensure that the oil parameters output to the oil pipe are constant.

[0012] Preferably, in order to adapt to different installation environments and ensure oil delivery safety, the oil pipe is a high-pressure resistant flexible hose. The oil pipe has sufficient length and flexibility to meet the distance requirements of the magnetic head extending to the bearing body and to adapt to a certain installation curvature.

[0013] Preferably, in order to simplify the on-site installation process and improve the fixing efficiency, the magnetic suction head is internally embedded with a ring-shaped strong magnet. The magnetic suction head is attracted and fixed to the metal plane on the surface of the bearing body by a strong magnetic force, so as to realize the quick positioning and disassembly of the oil pipe end.

[0014] Preferably, in order to ensure the sealing and alignment of the oil filling interface, the oil nozzle connector has a frustum-shaped protrusion structure, and an oil filling hole is provided at the central axis of the oil nozzle connector. The oil filling hole is connected to the interior of the oil pipe. The oil nozzle connector is magnetically pressed to fit tightly against the oil filling port of the bearing body to form a closed oil filling passage.

[0015] Preferably, in order to achieve automated control of the system, the controller is electrically connected to the cylinder and the oil pump respectively via wires. The controller has a preset control logic program that can synchronously control the extension and retraction of the cylinder and the start and stop of the oil pump, so as to realize unmanned operation of the entire oil injection process.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problem of lubricating oil naturally dripping or seeping due to poor sealing caused by the cylinder shaft driven by a cylinder to drive the sealing plate and sealing strip at the oil outlet of the oil storage tank. This solves the problem of lubricating oil naturally dripping or seeping due to poor sealing in existing gravity or simple oil injection devices when not in operation. It achieves the effect of completely blocking the oil circuit when the machine is stopped, effectively saving lubricating oil and keeping the equipment environment clean.

[0017] 2. This utility model solves the problem of air suction and pressure instability caused by oil level fluctuations or untimely oil supply when the oil pump directly draws oil from the oil storage tank as a buffer transfer mechanism. It eliminates air resistance in the oil supply pipeline, ensures stable pressure at the oil pump suction end, and thus improves the smooth operation and service life of the entire oil injection system.

[0018] 3. This utility model solves the problems of insufficient oil pressure in traditional oil injection methods, which make it difficult to inject oil deep into precision bearings and cannot accurately control the oil injection flow rate, by using a two-stage pressurized delivery structure of oil pump, oil distributor and high-pressure resistant flexible oil pipe. It achieves the effect of providing a continuous and stable high-pressure oil flow, and the oil distributor realizes the uniform distribution and pressure stabilization of the flow rate, ensuring that the lubricating oil can fully penetrate into the surfaces of each friction pair inside the bearing. Attached Figure Description

[0019] Figure 1 This is a perspective view of an automatic bearing oiling device proposed in this utility model; Figure 2 This is a front view of an automatic bearing oiling device proposed in this utility model; Figure 3This is a cross-sectional view of the oil pump in an automatic bearing oiling device proposed in this utility model. Figure 4 This is a cross-sectional view of the plug plate in an automatic bearing oiling device proposed in this utility model.

[0020] Legend: 1. Housing; 2. Controller; 3. Support frame; 4. Cylinder; 5. Cylinder shaft; 6. Plug; 7. Sealing strip; 8. Oil reservoir; 9. Oil distributor; 10. Oil pump; 11. Oil distributor; 12. Oil pipe; 13. Magnetic head; 14. Oil nozzle connector; 15. Bearing body. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 4 This utility model provides an automatic bearing oiling device, which aims to solve the structural defects of existing bearing oiling equipment, such as gravity dripping when not in operation and cumbersome and unstable oiling interface connections.

[0023] like Figure 1 and Figure 2As shown, the automatic bearing oiling device includes a housing 1 and a controller 2 fixedly installed on the outer wall of the housing 1. The housing 1 serves as the mounting base and protective shell for the entire device, providing support and protection for the internal precision components and preventing external dust or impurities from affecting the oiling accuracy. The controller 2 sends electrical signals to centrally coordinate the action logic of the cylinder 4 and the oil pump 10, realizing an automated control process. A support frame 3 is bolted to the top of the housing 1, providing a stable mounting platform for the drive mechanism. A cylinder 4 is fixedly installed on the support frame 3, serving as a power source to provide linear driving force. A cylinder 4 is slidably connected inside the cylinder 4. The cylinder shaft 5, acting as an actuator, transmits the thrust generated by the cylinder 4. The bottom end of the cylinder shaft 5 extends vertically downwards, passing through the top of the cover 1 and entering the oil reservoir 8 fixed inside the cover 1. The oil reservoir 8 is used to centrally hold the lubricating oil to be injected. The bottom end of the cylinder shaft 5 is fixedly connected to the plug 6 located inside the oil reservoir 8. A sealing strip 7 is fixedly connected to the outer wall of the plug 6. The plug 6 is located at the oil outlet at the bottom of the oil reservoir 8 and seals with the inner wall of the oil outlet. Under normal conditions, the sealing strip 7 is pressed against the inner wall of the oil outlet to block the flow of oil. The active sealing of the oil is achieved through the tight cooperation between the plug 6 and the sealing strip 7 and the oil outlet, preventing gravity leakage in non-working conditions.

[0024] The bottom of the oil storage tank 8 is connected to and fixedly connected to the oil distribution tank 9. The oil distribution tank 9 is fixedly connected to the internal support of the cover 1 and located directly below the oil storage tank 8. The volume of the oil distribution tank 9 is equal to the single suction discharge of the oil pump 10. The oil distribution tank 9 is used to receive and buffer the lubricating oil flowing in from the oil storage tank 8 to avoid the generation of air bubbles and ensure the continuity of oil supply. The oil pump 10 is fixedly installed on the inner bottom wall of the cover 1 by the mounting base and bolts. The oil pump 10 is electrically connected to the controller 2 through the wire. The oil suction end of the oil pump 10 is connected to the oil distribution tank 9 through the pipeline. The oil pump 10 is used to mechanically pressurize the extracted lubricating oil and deliver the pressurized lubricating oil to the subsequent distribution pipeline.

[0025] To further achieve precise oil distribution and delivery, an oil distributor 11 is fixedly installed at the oil outlet of the oil pump 10 via a flange connection. The oil distributor 11 serves as an intermediate distribution element to receive the pressurized oil from the oil pump 10. The oil distributor 11 has a diversion channel inside, with one end directly connected to the oil outlet of the oil pump 10 and the other end extending to the output port of the oil distributor 11. The internal flow channel structure of the oil distributor 11 is designed to rectify and balance the flow of the oil, ensuring a stable output oil flow and uniform pressure, and preventing deviations in the oil injection volume due to pressure fluctuations. An oil pipe 12 is connected to the side of the oil distributor 11 away from the oil pump 10 via a threaded fastening method. The oil pipe 12 is made of high-pressure resistant flexible hose material to adapt to different installation angles and pressure requirements. The oil pipe 12 serves as the main oil delivery channel, transmitting the lubricating oil diverted by the oil distributor 11 downstream. The length of the oil pipe 12 is adapted to the distance between the oil distributor 11 and the bearing body 15 in the actual application scenario.

[0026] Please refer to Figure 3 and Figure 4 A magnetic head 13 is fixedly connected to the bottom end of the oil pipe 12 away from the distributor 11. The magnetic head 13 has a columnar structure and a ring-shaped strong magnet is embedded inside. The magnetic head 13 uses its own strong magnetic attraction to attract and fix it to the metal surface of the bearing body 15. The magnetic attraction method replaces the traditional screw-on fixing, which greatly simplifies the on-site installation and disassembly process. At the same time, it allows for quick positioning on the metal surface at different positions. The bottom of the magnetic head 13 is integrally connected to the oil nozzle connector 14. The oil nozzle connector 14 has a frustum-shaped protrusion structure to adapt to the shape of the conventional oil filling hole. An oil filling hole is opened at the central axis of the oil nozzle connector 14. The oil filling hole extends upward through the inside of the magnetic head 13 and is connected to the internal channel of the oil pipe 12. When the magnetic head 13 is attracted to the surface of the bearing body 15, the oil nozzle connector 14 is precisely inserted into or abuts against the oil filling port of the bearing body 15, so that a closed oil filling passage is formed between the oil nozzle connector 14 and the oil filling port of the bearing body 15, ensuring that the lubricating oil can be injected into the internal cavity of the bearing body 15 without leakage.

[0027] As a preferred embodiment, in order to ensure the reliability and response speed of the on / off control between the oil storage tank 8 and the oil distribution tank 9, the cylinder shaft 5 is designed to slide back and forth along the central axis of the oil storage tank 8. The cylinder shaft 5 and the inner wall of the oil storage tank 8 maintain a clearance fit to reduce frictional resistance. When the controller 2 drives the cylinder 4 to slide the cylinder shaft 5 downward, the cylinder shaft 5 can smoothly drive the blocking disc 6 and the sealing strip 7 to move downward synchronously, so that the blocking disc 6 and the sealing strip 7 can quickly disengage from the oil outlet of the oil storage tank 8, realizing the rapid connection of the oil circuit between the oil storage tank 8 and the oil distribution tank 9. Conversely, when the cylinder shaft 5 returns to its original position, the blocking disc 6 can accurately return to its original position to block the oil outlet.

[0028] As another preferred embodiment, in order to optimize the equipment space layout and ensure the stability of the oil distribution chamber 9, the oil distribution chamber 9 is fixedly connected to the internal support of the cover 1 by bolt connection, and the position of the oil distribution chamber 9 is strictly set directly below the oil storage chamber 8. The lubricating oil flows in naturally by gravity. The volume of the oil distribution chamber 9 is precisely calculated and set to be equal to the maximum single suction and discharge capacity of the oil pump 10, so as to ensure that there is sufficient oil in the oil distribution chamber 9 at the moment of start-up of the oil pump 10, preventing the oil pump 10 from sucking in air, and playing a good buffering and transfer role.

[0029] As another preferred embodiment, in order to ensure the working stability and shock resistance of the oil pump 10, the oil pump 10 is firmly fixed to the bottom wall of the inner wall of the housing 1 by a special shock-absorbing mounting base and high-strength bolts. The input end of the oil pump 10 is electrically connected to the output port of the controller 2 through a wire. The controller 2 has an integrated motor drive circuit, which can accurately control the start and stop time and operating power of the oil pump 10 according to a preset program to ensure that the pressurization process is controllable.

[0030] As another preferred embodiment, in order to achieve simultaneous oil injection from multiple channels or precise flow distribution, the internal flow channel of the oil distributor 11 can be designed as a multi-branch structure according to actual needs. The inlet end of the flow channel is connected to the oil outlet end of the oil pump 10, and the outlet end is connected to one or more oil pipes 12 respectively. The oil distributor 11 can also integrate a pressure stabilizing valve core for secondary pressure stabilization and flow regulation of the flowing oil to ensure that the oil pressure output to the oil pipe 12 is constant.

[0031] As another preferred embodiment, in order to adapt to complex industrial site environments and ensure oil transportation safety, the oil pipe 12 is preferably made of a high-pressure resistant flexible hose with an inner steel wire braided layer, which has excellent pressure resistance, oil resistance and anti-aging properties. The length of the oil pipe 12 is customized according to the straight distance and bending allowance required for the magnetic head 13 to extend to the specific position of the bearing body 15, to ensure flexible connection and no excessive tension.

[0032] As another preferred embodiment, in order to enhance the magnetic fixation firmness and adapt to different curvature mounting surfaces, the magnetic head 13 is internally embedded with a ring-shaped strong magnet made of neodymium iron boron permanent magnet material, which has extremely high magnetic energy product. The bottom surface of the magnetic head 13 can be designed as a flat surface or a concave arc surface to better fit the metal flat surface or cylindrical surface of the bearing body 15, so as to achieve rapid, strong and repeatable positioning of the end of the oil pipe 12.

[0033] As another preferred embodiment, in order to ensure the sealing and versatility of the oil filling interface, the oil nozzle connector 14 has a frustum-shaped protrusion design, which can automatically center and insert into the oil filling port of the bearing body 15 with different diameters. The initial seal is achieved by the contact between the inclined surface of the frustum and the edge line of the oil filling port. With the strong suction force of the magnetic head 13, the oil nozzle connector 14 and the oil filling port of the bearing body 15 form a tightly sealed oil filling passage, effectively preventing oil from overflowing during the oil filling process.

[0034] Working principle: When oiling is required, the operator first attaches the magnetic head 13 to the metal part of the bearing body 15 to be oiled. The strong magnet inside the magnetic head 13 is used to quickly fix it and adjust its position so that the oil nozzle connector 14 is precisely aligned and pressed against the oiling port of the bearing body 15, forming a closed oiling passage. At this time, the controller 2 sends a start signal to control the cylinder 4 on the support frame 3 to move. The cylinder 4 drives the internal cylinder shaft 5 to slide downward along the axis of the oil storage tank 8. Since the bottom end of the cylinder shaft 5 is fixedly connected to the plug plate 6, the downward movement of the cylinder shaft 5 drives the plug plate 6 and the sealing strip 7 to move downward synchronously, so that the plug plate 6 and the sealing strip 7 quickly separate from the bottom oil outlet of the oil storage tank 8, releasing the sealing state. Under the action of gravity and the slight auxiliary pressure of the cylinder shaft 5, the lubricating oil in the oil storage tank 8 flows smoothly into the lower oil distribution tank 9 through the oil outlet. The oil distribution tank 9 performs preliminary storage and buffering of the flowing oil to eliminate flow rate fluctuations. Controller 2 sends a start command to oil pump 10 inside housing 1 simultaneously with or after a short delay when starting cylinder 4. Oil pump 10 starts working and draws lubricating oil from oil distribution chamber 9. The lubricating oil is mechanically pressurized inside oil pump 10 and then transported to oil distributor 11. Oil distributor 11 uses its internal flow channel structure to distribute and stabilize the high-pressure oil flow, ensuring stable output oil parameters. After being processed by oil distributor 11, the lubricating oil enters oil pipe 12 and is transmitted downwards along oil pipe 12 to magnetic suction head 13 and oil nozzle connector 14. Finally, it is forcefully injected into bearing body 15 through oil nozzle connector 14 to complete the lubrication and maintenance of bearing body 15. After the oil injection is completed, controller 2 controls cylinder 4 and oil pump 10 to reset and stop, and the plug 6 re-seals the oil outlet to prevent residual oil from dripping.

Claims

1. An automatic bearing oiling device, comprising a housing (1) and a controller (2) fixedly installed on the outer wall of the housing (1), characterized in that, A support frame (3) is fixedly connected to the top of the cover (1). A cylinder (4) is fixedly installed on the support frame (3). A cylinder shaft (5) is slidably connected inside the cylinder (4). The bottom end of the cylinder shaft (5) extends vertically into the oil storage tank (8) fixed inside the cover (1) and is fixedly connected to a blocking plate (6). A sealing strip (7) is fixedly connected to the outer wall of the blocking plate (6). The blocking plate (6) is used to seal the oil outlet of the oil storage tank (8). An oil distribution tank (9) is fixedly connected to the bottom of the oil storage tank (8). An oil pump (10) is fixedly installed inside the housing (1). The oil suction end of the oil pump (10) is connected to the oil distribution chamber (9). An oil distributor (11) is connected to the oil outlet flange of the oil pump (10). An oil pipe (12) is threadedly connected to the side of the oil distributor (11) away from the oil pump (10). A magnetic suction head (13) is fixedly connected to the bottom end of the oil pipe (12). An oil nozzle connector (14) is integrally formed at the bottom of the magnetic suction head (13). The oil nozzle connector (14) abuts against the oil inlet of the bearing body (15).

2. The automatic bearing oiling device according to claim 1, characterized in that, The cylinder shaft (5) slides back and forth along the central axis of the oil storage tank (8). When the cylinder shaft (5) slides downward, it drives the plug (6) and the sealing strip (7) to disengage from the oil outlet of the oil storage tank (8), so that the oil storage tank (8) and the oil distribution tank (9) are connected to each other.

3. The automatic bearing oiling device according to claim 1, characterized in that, The oil distribution chamber (9) is fixedly connected to the bracket inside the cover (1), and the oil distribution chamber (9) is located directly below the oil storage chamber (8). The oil distribution chamber (9) is used to receive and buffer the lubricating oil flowing in from the oil storage chamber (8).

4. The automatic bearing oiling device according to claim 1, characterized in that, The oil pump (10) is fixed to the inner bottom wall of the housing (1) by bolts. The oil pump (10) is used to pressurize the extracted lubricating oil and deliver the pressurized lubricating oil to the oil distributor (11).

5. The automatic bearing oiling device according to claim 1, characterized in that, The oil distributor (11) has a flow distribution channel inside. One end of the flow distribution channel is connected to the oil outlet of the oil pump (10), and the other end of the flow distribution channel is connected to the oil pipe (12). The oil distributor (11) is used to distribute the oil in a stable flow.

6. The automatic bearing oiling device according to claim 1, characterized in that, The oil pipe (12) is a high-pressure resistant flexible hose, and the length of the oil pipe (12) meets the distance requirement of the magnetic head (13) extending to the bearing body (15).

7. The automatic bearing oiling device according to claim 1, characterized in that, The magnetic head (13) is internally fitted with a ring-shaped strong magnet, and the magnetic head (13) is magnetically attracted and fixed to the metal plane on the surface of the bearing body (15).

8. The automatic bearing oiling device according to claim 1, characterized in that, The oil nozzle connector (14) has a frustum-shaped protrusion structure. An oil injection hole is provided at the central axis of the oil nozzle connector (14). The oil injection hole is connected to the interior of the oil pipe (12). The oil nozzle connector (14) and the oil injection port of the bearing body (15) form a closed oil injection passage.

9. The automatic bearing oiling device according to claim 1, characterized in that, The controller (2) is electrically connected to the cylinder (4) and the oil pump (10) respectively via wires. The controller (2) has preset control logic to synchronously control the extension and retraction of the cylinder (4) and the start and stop of the oil pump (10).

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