Automatic bearing oiling device

Abstract

The utility model discloses a bearing automatic oiling device belongs to bearing oiling technical field. A bearing automatic oiling device, including the oil injection of installing on the oil port of bearing, the oil injection of supplementing lubricating oil for oil injection part and the monitoring part for monitoring the running state of bearing, the oil injection is provided with a plurality of, corresponds to different bearing respectively, the oil injection of oil storage part through the branch part supplies oil to each oil injection respectively, the oil injection includes the oil injection cylinder and piston, the piston sliding arrangement is in the inside of oil injection cylinder, and the piston is driven sliding through the drive arrangement, can be used for monitoring the running condition of bearing through the monitoring part of setting, if the running state changes, then the corresponding oil injection carries out the oil injection to the bearing to the problem that the regular oiling in the prior art cannot adjust the oiling time according to the bearing condition change.

Description

Technical Field

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

[0002] Currently, most automatic lubrication devices on the market use monitoring of lubricating oil pressure or timed lubrication as control methods. However, for the rotating bearings (such as main shaft bearings and sheave bearings) of hoists (mine hoists in mine operations), it is not easy or possible to measure the oil pressure and other information at the bearing. Timed lubrication cannot be adjusted in time when the rotational conditions of the bearing change. Continuous operation can easily lead to insufficient oil in the bearing, resulting in bearing damage. In order to address the above problems, this application proposes an automatic bearing lubrication device. Utility Model Content

[0003] The purpose of this invention is to solve the problem that the timing of timed oil injection in the prior art cannot be adjusted according to changes in bearing operating conditions, and to propose an automatic bearing oil injection device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An automatic bearing oiling device includes an oiling section installed on the oiling port of the bearing, an oil storage section for replenishing lubricating oil to the oiling section, and a monitoring section for monitoring the operating status of the bearing. The oiling section is provided in multiple parts, each corresponding to a different bearing. The oil storage section supplies oil to each oiling section through a branch section.

[0005] Preferably, the oil injection section includes an oil injection cylinder and a piston, the piston being slidably disposed inside the oil injection cylinder, and the piston being driven to slide by a driving device.

[0006] Preferably, a partition is fixedly installed inside the oil injection cylinder, which divides the interior of the oil injection cylinder into an oil storage chamber and an equipment chamber, and the piston is located in the oil storage chamber.

[0007] Preferably, the driving device is an electric telescopic rod, which is fixedly installed inside the oil injection cylinder and located in the equipment cavity, and the telescopic end of the electric telescopic rod is fixedly connected to the piston.

[0008] Preferably, a three-way pipe is fixedly installed at the end of the oil injection cylinder near the oil storage chamber. One end of the three-way pipe is fixedly connected to the end of the oil injection cylinder, and the other two ends are respectively provided with a first solenoid valve and a second solenoid valve.

[0009] Preferably, one end of the first solenoid valve is connected to a three-way pipe, and the other end is fixedly provided with an oil injection nozzle, which is connected to the oil injection port of the bearing.

[0010] Preferably, one end of the second solenoid valve is connected to a three-way pipe, and the other end is connected to a branch section via a branch oil pipe.

[0011] Preferably, the oil storage unit includes an oil storage tank and a lubrication pump. The lubrication pump is located at the bottom of the oil storage tank, the oil storage tank stores lubricating oil, and the lubrication pump is driven by a servo motor.

[0012] Preferably, the branch section includes a distributor, the inlet of which is connected to the outlet of the lubrication pump via the main oil pipe, one end of the branch oil pipe is connected to the second solenoid valve, and the other end is connected to the branch outlet of the distributor.

[0013] Preferably, the monitoring unit includes a temperature sensor, a sound sensor, and a vibration sensor disposed on the bearing housing.

[0014] Compared with the prior art, the present invention provides an automatic bearing oil injection device, which has the following beneficial effects.

[0015] 1. This utility model, through the monitoring unit, can be used to monitor the operating conditions of the bearing. If the operating condition changes, the corresponding oiling unit will inject oil into the bearing, thereby solving the problem in the prior art that the timing of timed oiling cannot be adjusted according to changes in the bearing operating conditions.

[0016] 2. This utility model, through the oil injection part, can be used to inject oil into the corresponding bearing, while the oil storage part can replenish the oil injection part. This setting can achieve the effect of long-term oil injection without the need to replenish the oil of a specific oil injection part separately in the later stage.

[0017] 3. In this utility model, each oil injection part is relatively independent and does not affect the others. For example, if one oil injection part is in the process of oil injection, it will not affect the oil replenishment operation of other oil injection parts.

[0018] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the oil injection section in this utility model. Figure 1 .

[0021] Figure 3 This is a schematic diagram of the oil injection section in this utility model. Figure 2 .

[0022] Figure 4 This is a cross-sectional structural diagram of the oil injection section in this utility model.

[0023] Figure 5 This is a schematic diagram of the distributor in this utility model.

[0024] Figure 6 This is a schematic diagram of the oil storage section in this utility model.

[0025] In the picture: 1. Oil storage tank; 2. Lubrication pump; 3. Main oil pipe; 4. Distributor; 5. Branch oil pipe; 6. Oil injection cylinder; 7. Mounting base; 8. Oil injection nozzle; 9. T-pipe; 10. First solenoid valve; 11. Second solenoid valve; 12. Equipment cavity; 13. Oil storage cavity; 14. Baffle; 15. Electric telescopic rod; 16. Piston. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0027] Please refer to Figures 1-6 An automatic bearing oiling device includes an oiling section installed on the oiling port of the bearing, an oil storage section for replenishing lubricating oil to the oiling section, and a monitoring section for monitoring the operating status of the bearing. Multiple oiling sections are provided, each corresponding to a different bearing. The oil storage section supplies oil to each oiling section through a branch section.

[0028] In a specific embodiment of this utility model, the bearings are the main shaft bearing and sheave bearing of a mine hoist. This device is mainly suitable for situations where manual lubrication is difficult or personnel cannot easily reach the bearing location. The monitoring unit is mainly used to monitor the operating status of the bearings in real time. Each bearing location is equipped with a corresponding monitoring unit. If an abnormality occurs in the operation of a bearing, it will be detected by the monitoring unit, and then the corresponding lubrication unit will be used to lubricate the bearing to avoid wear and damage caused by insufficient oil. The oil storage unit is mainly used to store lubricating oil and replenish the lubrication unit. After a lubrication unit lubricates the bearing, the lubricating oil in the oil storage unit is used to replenish the lubrication unit, thereby ensuring that there is always lubricating oil in the lubrication unit and that it does not affect the next lubrication. In this solution, each lubrication unit is relatively independent and does not affect the others. Each lubrication unit can independently perform lubrication and replenishment. This arrangement can ensure the amount of oil injected when lubricating the bearing.

[0029] The oil filling section includes an oil filling cylinder 6 and a piston 16. The piston 16 is slidably disposed inside the oil filling cylinder 6 and is driven to slide by a drive device. The oil filling cylinder 6 can be made of PEEK engineering plastic, which has oil-resistant properties and is lighter than metal for the same volume. Since this solution is equipped with an oil storage section to replenish the oil filling section, its volume can be set to be smaller. For example, the volume can be set to only supply the maximum amount of oil filling at one time. This setting can make the volume of the oil filling cylinder 6 smaller and reduce the space requirements for the installation location.

[0030] A partition 14 is fixedly installed inside the oil injection cylinder 6, which divides the interior of the oil injection cylinder 6 into an oil storage chamber 13 and an equipment chamber 12. The piston 16 is located in the oil storage chamber 13.

[0031] In practical applications, the lubricating oil is located in the oil storage chamber 13 and at the inner end of the piston 16 and the oil injection cylinder 6 (the inner end being the end away from the equipment chamber 12). The piston 16 is driven to slide in the oil injection cylinder 6 by a drive device, thereby realizing the action of oil injection or oil replenishment.

[0032] The driving device is an electric telescopic rod 15, which is fixedly installed inside the oil injection cylinder 6 and located in the equipment cavity 12. The telescopic end of the electric telescopic rod 15 is fixedly connected to the piston 16, and the extension and retraction of the electric telescopic rod 15 drives the piston 16 to slide.

[0033] A three-way pipe 9 is fixedly installed on the end of the oil filling cylinder 6 near the oil storage chamber 13. One end of the three-way pipe 9 is fixedly connected to the end of the oil filling cylinder 6 and is internally connected. The other two ends are respectively provided with a first solenoid valve 10 and a second solenoid valve 11 and are internally connected.

[0034] One end of the first solenoid valve 10 is connected to the three-way pipe 9, and the other end is fixedly equipped with an oil injection nozzle 8, which is connected to the oil injection port of the bearing.

[0035] Specifically, the oil injection cylinder 6 is externally fixed with a mounting base 7. Using the mounting base 7, the oil injection cylinder 6 can be fixedly positioned near the bearing housing. The installation method uses existing conventional methods: holes are drilled in the bearing housing frame or other frames near the bearing housing, and then bolts are used to fix the mounting base 7 to this location. In this installation method, the oil injection nozzle 8 is connected to the corresponding oil injection port via a connecting pipe. Alternatively, the above installation method can be omitted; the oil injection nozzle 8 can be directly threaded to the corresponding oil injection port, achieving both connection and fixing the oil injection cylinder 6 to the bearing housing. The oil injection port mentioned in this solution is existing technology and is generally located on the bearing housing.

[0036] One end of the second solenoid valve 11 is connected to the three-way pipe 9, and the other end is connected to the branch section through the branch oil pipe 5.

[0037] The oil storage section includes an oil storage tank 1 and a lubrication pump 2. The lubrication pump 2 is located at the bottom of the oil storage tank 1. The oil storage tank 1 contains lubricating oil. The lubrication pump 2 is driven by a servo motor. When in use, the servo motor drives the lubrication pump 2 to work, draw the lubricating oil from the oil storage tank 1, and then deliver it out through the main oil pipe 3 to replenish the oil in the oiling section.

[0038] The branch section includes a distributor 4. The inlet of the distributor 4 is connected to the outlet of the lubrication pump 2 through the main oil pipe 3. One end of the branch oil pipe 5 is connected to the second solenoid valve 11, and the other end is connected to the branch outlet of the distributor 4. The distributor 4 is a conventional lubricating oil distributor. When in use, the lubricating oil in the main oil pipe 3 enters the distributor 4 and is then divided into several branches by the distributor 4 to distribute the lubricating oil to each oil injection section.

[0039] The monitoring unit includes temperature sensors, sound sensors, and vibration sensors mounted on the bearing housing. The temperature sensor monitors the bearing temperature, the sound sensor monitors noise generated at the bearing location during operation, and the vibration sensor monitors vibration generated at the bearing location. Existing equipment is used for all three sensors, which are installed in suitable positions on the corresponding bearing housings, following conventional installation methods. This solution also includes a PCL controller to collect data from the various sensors, such as temperature, noise, and vibration. This data is compared with normal operating data. If there is an increase in temperature, noise, or vibration, the corresponding lubrication unit is controlled to lubricate the bearing. Simultaneously, the measured values ​​and lubrication amount are displayed on the human-machine interface (the lubrication amount is determined based on the stroke of the electric telescopic rod 15). An audible and visual alarm is also provided for timely intervention by personnel to prevent other abnormalities. The data acquisition, data comparison, and lubrication control methods of the PCL controller can utilize existing conventional methods, which will not be elaborated upon here.

[0040] Working process: Under normal conditions, neither the oil storage section nor the oil injection section is working, and there is lubricating oil in the oil storage chamber 13 of each oil injection section. At this time, the electric telescopic rod 15 is in the retracted state, the piston 16 is close to the partition 14, and both the first solenoid valve 10 and the second solenoid valve 11 are closed. The monitoring unit monitors the operating status of each bearing in real time. If a bearing malfunctions, showing a trend of insufficient oil leading to increased temperature, increased noise, or intensified vibration within a certain period, the controller will receive this data. After comparing it with the normal operating data, it will control the corresponding drive unit to inject oil. During oil injection, the first solenoid valve 10 of the drive unit opens, the electric telescopic rod 15 extends, pushing the piston 16 towards the oil injection nozzle 8, pushing the lubricating oil in the oil storage chamber 13 out and injecting it into the bearing position through the oil injection nozzle 8. After the oil injection is completed, the first solenoid valve 10 closes and the second solenoid valve 11 opens. Then, the electric telescopic rod 15 retracts, pulling the piston 16 towards the partition 14. During the movement, oil can be drawn from the corresponding branch oil pipe 5 into the oil storage chamber 13, completing one oil injection and replenishment. In order to keep oil in the branch oil pipe 5, a pressure sensor can be installed on the branch oil pipe 5 or the main oil pipe 3. When the oil injection section draws oil, the pressure in the pipeline will decrease. At this time, the servo motor is started to drive the lubrication pump 2 to work and replenish oil in the pipeline. In this way, this device can realize real-time oil injection by monitoring the operating status of the bearing, avoiding the problem of not being able to detect and inject oil in time after the bearing malfunctions due to relying only on timed oil injection. At the same time, the oil injection section is replenished in time after oil injection, which is suitable for long-term operations such as mining operations.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic bearing oiling device, characterized in that, The system includes an oil filling section installed on the oil filling port of the bearing, an oil storage section for replenishing lubricating oil to the oil filling section, and a monitoring section for monitoring the operating status of the bearing. Multiple oil filling sections are provided, each corresponding to a different bearing. The oil storage section supplies oil to each oil filling section through a branch circuit. Each oil filling section includes an oil filling cylinder (6) and a piston (16). The piston (16) is slidably disposed inside the oil filling cylinder (6) and is driven to slide by a driving device. A partition (14) is fixedly disposed inside the oil filling cylinder (6), dividing the interior of the oil filling cylinder (6) into an oil storage chamber (13) and an equipment chamber (12). The piston (16) is located in the oil storage chamber (13), and the oil filling cylinder (6) is located near the oil storage chamber (13). A three-way pipe (9) is fixedly provided at the end of the oil cylinder (6). One end of the three-way pipe (9) is fixedly connected to the end of the oil cylinder (6). The other two ends are respectively provided with a first solenoid valve (10) and a second solenoid valve (11). One end of the first solenoid valve (10) is connected to the three-way pipe (9), and the other end is fixedly provided with an oil injection nozzle (8). The oil injection nozzle (8) is connected to the oil injection port of the bearing. One end of the second solenoid valve (11) is connected to the three-way pipe (9), and the other end is connected to the branch section through a branch oil pipe (5). The oil storage section includes an oil storage tank (1) and a lubrication pump (2). The lubrication pump (2) is located at the bottom of the oil storage tank (1). The oil storage tank (1) contains lubricating oil. The lubrication pump (2) is driven by a servo motor.

2. The automatic bearing oiling device according to claim 1, characterized in that, The driving device is an electric telescopic rod (15), which is fixedly installed inside the oil injection cylinder (6) and located in the equipment cavity (12). The telescopic end of the electric telescopic rod (15) is fixedly connected to the piston (16).

3. The automatic bearing oiling device according to claim 1, characterized in that, The branch section includes a distributor (4), the inlet of which is connected to the outlet of the lubrication pump (2) via the main oil pipe (3), one end of the branch oil pipe (5) is connected to the second solenoid valve (11), and the other end is connected to the branch outlet of the distributor (4).

4. The automatic bearing oiling device according to claim 1, characterized in that, The monitoring unit includes a temperature sensor, a sound sensor, and a vibration sensor mounted on the bearing housing.

Images