Bearing grease injection device with quantifying mechanism

Abstract

The utility model relates to the field of bearings, in particular to a bearing grease injection device with a quantifying mechanism, which comprises a grease injection machine, a main body used for bearing grease injection, a bearing stand, a driving controller fixedly arranged above the grease injection machine and used for placing a bearing, and discharging frames fixedly arranged on two sides of the outside of the grease injection machine, a discharging hopper is fixedly installed above the discharging frame, and a discharging pipe is fixedly installed at the bottom of the discharging hopper. The bearing grease injection device is provided with the electromagnetic control valve, the rough material pushing barrel, the spiral push rod, the metering cavity, the elastic wave sensor, the buffer cavity, the weighing plate and the weighing sensor, when the bearing grease injection device is used, grease is influenced by the discharging hopper to be vertically downward, and is controlled by the electromagnetic control valve to be quantitatively discharged to enter the rough material pushing barrel; and then a spiral push rod in the rough pushing barrel pushes the grease to enter a metering cavity, and at the moment, quantitative rough calculation is completed.

Description

Technical Field

[0001] This utility model relates to the field of bearings, and specifically to a bearing grease injection device with a metering mechanism. Background Technology

[0002] Bearings are crucial support components in mechanical systems. Their core function is to reduce the coefficient of friction and maintain rotational accuracy. This is achieved through the inner ring mating with the shaft, the outer ring mating with the bearing housing, and the rolling elements, such as steel balls or rollers, and the cage preventing direct contact between the rolling elements. Bearing grease injection forms an oil film between the rolling elements and the raceway to avoid direct metal-to-metal contact. Bearing grease injection devices ensure optimal lubrication of the bearing by injecting grease in precise quantities, thereby extending bearing life and improving equipment reliability.

[0003] A search revealed a bearing grease injection device (publication number CN213809987U). This device includes a support frame, a cylinder, a movable pressure plate, a hydraulic cylinder, a main grease outlet pipe, branch grease outlet pipes, a rotary joint, and an injection pipe. By designing specific structures for the main grease outlet pipe, branch grease outlet pipes, rotary joint, and injection pipe, only one main grease outlet pipe needs to be connected to the side wall of the cylinder to simultaneously inject grease into a large number of bearings of various specifications, greatly improving work efficiency and reducing the amount of grease remaining in the main grease outlet pipe. Because the grease outlet holes are arrayed on the circumference of the injection pipe, the uniformity of bearing grease injection is ensured. The connection between the branch grease outlet pipes and the main grease outlet pipe via a rotary joint allows each branch grease outlet pipe to rotate around the joint as an axis. Rotating the branch grease outlet pipe allows the corresponding injection pipe for the bearing to be fitted to to rotate to a specific height, facilitating manual or robotic insertion of the bearing into the corresponding injection pipe, further improving work efficiency.

[0004] Existing bearing grease injection devices, lacking a metering mechanism, can lead to large fluctuations in grease volume and unstable bearing lubrication during the grease injection process. Furthermore, relying solely on a metering pump for metered grease injection results in insufficient overall injection accuracy. In the comparative case mentioned above, the bearing grease injection device also lacks a metering mechanism. Consequently, under long-term use, the bearing grease injection device is difficult to adapt to bearings of various specifications, resulting in poor overall equipment versatility and requiring frequent replacement of parts or adjustment of parameters.

[0005] Therefore, it is necessary to invent a bearing grease injection device with a metering mechanism to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a bearing grease injection device with a quantitative mechanism. This device utilizes an electromagnetic control valve, a coarse feed cylinder, a spiral pusher, a metering chamber, an elastic wave sensor, a buffer chamber, a weighing plate, and a weighing sensor to achieve the quantitative mechanism. This mechanism, through multi-method coordinated control, allows for precise control of the grease injection amount error. Furthermore, it reduces manual intervention, significantly increases grease injection speed, and improves overall grease injection accuracy. Additionally, it allows for quantitative adjustment of the grease according to different bearing grease injection requirements, making the device adaptable to bearings of different specifications. This bearing grease injection device is highly precise. Precise grease injection avoids insufficient or excessive lubrication of bearings, reducing the risk of bearing overheating and oil film failure. This addresses the problem in existing bearing grease injection devices where the lack of a metering mechanism leads to large fluctuations in grease volume and unstable bearing lubrication. Furthermore, relying solely on a metering pump for quantitative grease injection results in insufficient overall injection accuracy. The bearing grease injection device in the comparative case also lacks a metering mechanism, making it difficult to adapt to various bearing sizes under long-term use. This results in poor overall equipment versatility and the need for frequent component replacement or parameter adjustments.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bearing grease injection device with a quantitative mechanism, comprising a grease injection machine and a main body for grease injection into bearings;

[0008] A bearing platform is fixedly installed above the grease injection machine for placing bearings. A drive controller is fixedly installed on the outside of the grease injection machine. Material feeding racks are fixedly installed on both sides of the outside of the grease injection machine. A material feeding hopper is fixedly installed above the material feeding rack. A material feeding pipe is fixedly installed at the bottom of the material feeding hopper. An electromagnetic control valve is fixedly connected to the bottom of the material feeding pipe. A coarse pusher cylinder is fixedly installed at the bottom of the electromagnetic control valve.

[0009] A servo motor is fixedly installed at the front end of the coarse pusher cylinder, and is used to fix the output end to the spiral pusher rod. A metering chamber is fixedly connected to the tail end of the coarse pusher cylinder. The metering chamber is fixedly installed inside the grease injection machine. Elastic wave sensors are fixedly installed on the outside of the metering chamber.

[0010] A partition plate is fixedly installed inside the grease injection machine to divide the internal space of the machine. A first feed pump is fixedly installed above the partition plate. A first suction pipe is fixedly installed at the output end of the first feed pump. A buffer chamber is fixedly connected to the other end of the first suction pipe. A weighing plate is fixedly installed inside the buffer chamber. A weighing sensor is fixedly installed below the weighing plate. A second feed pump is fixedly installed below the bearing platform. A second suction pipe is fixedly installed at the output end of the second feed pump. The second feed pump is fixedly connected to the buffer chamber.

[0011] Preferably, a limiting frame is threadedly connected to the upper part of the feeding rack, a limiting ring is fixedly installed inside the limiting frame, and a bearing grease cylinder is fixedly installed inside the limiting ring.

[0012] Preferably, the limiting frame is threadedly connected to the feeding frame, and the bearing grease cylinder and the feeding hopper are vertically distributed.

[0013] Preferably, the spiral pusher is rotatably connected to the coarse pusher cylinder, and the metering chamber is symmetrically arranged about the central axis of the grease injection machine.

[0014] Preferably, the number of weighing sensors is set to multiple, and the multiple weighing sensors are distributed at equal intervals on the buffer cavity.

[0015] Preferably, a grease injection ring is fixedly connected to the other end of the second extraction tube, and a grease injection head is fixedly provided above the grease injection ring. A bearing grease injection plate is sleeved on the outside of the grease injection head, and the bearing grease injection plate is fixedly connected to the bearing base.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] This utility model includes an electromagnetic control valve, a coarse feed cylinder, a spiral pusher, a metering chamber, an elastic wave sensor, a buffer chamber, a weighing plate, and a weighing sensor. When using this bearing grease injection device, the grease is vertically downwards due to the influence of the hopper. First, it is quantitatively fed into the coarse feed cylinder under the control of the electromagnetic control valve. Then, the spiral pusher inside the coarse feed cylinder pushes the grease into the metering chamber, completing the quantitative coarse calculation. Next, multiple elastic wave sensors are installed outside the metering chamber. These sensors emit elastic waves, and the propagation time of the elastic waves is transmitted to the drive controller. The grease volume is calculated based on the time change, performing a secondary quantitative calculation. Finally, the quantitatively dispensed grease is pumped to… The buffer chamber is equipped with multiple weighing sensors to accurately weigh the injected grease. This allows for three quantitative calculations of the grease volume, giving the bearing grease injection device a quantitative mechanism. This mechanism, through multi-method coordinated control, ensures precise control of the grease volume error. Furthermore, this quantitative mechanism reduces manual intervention, significantly increases grease injection speed, and improves overall grease injection accuracy. It also allows for quantitative adjustment of the grease volume according to different bearing grease injection needs, making the device adaptable to different bearing specifications. This precise grease injection device avoids insufficient or excessive lubrication, reducing the risk of bearing overheating and oil film failure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[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 material feeding rack structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the coarse feed cylinder structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the metering cavity structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the buffer cavity structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the bearing grease injection disc structure of this utility model;

[0025] Figure 7 This is the system control flowchart of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Grease injection machine; 2. Bearing platform; 3. Drive controller; 4. Feed rack; 5. Feed hopper; 6. Limiting frame; 7. Limiting ring; 8. Bearing grease cylinder; 9. Feeding pipe; 10. Electromagnetic control valve; 11. Coarse pusher cylinder; 12. Servo motor; 13. Spiral pusher; 14. Metering chamber; 15. Elastic wave sensor; 16. Divider plate; 17. First feed pump; 18. First extraction pipe; 19. Buffer chamber; 20. Weighing plate; 21. Weighing sensor; 22. Second feed pump; 23. Second extraction pipe; 24. Grease injection ring; 25. Grease injection head; 26. Bearing grease injection tray. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings. The computer software involved in the hardware carriers such as the drive display controller and elastic wave sensor in the technical solutions of the following claims is software technology known to those skilled in the art. It is merely applied to the above-mentioned hardware carriers. That is to say, the computer software part involved in the claims is an essential technical feature for solving the above-mentioned technical problems, that is, it constitutes the necessary technical feature for solving the technical problems of this application, but it is not a differentiating technical feature for solving the technical problems. It does not make any technical improvement to the computer software part involved in the above-mentioned related hardware carriers, nor is it the key technical point of the invention of the application.

[0029] Therefore, it can be seen that the "drive display controller, elastic wave sensor and weighing sensor" involved in the specific implementation process are all entity functional modules that combine the computer software program or protocol in the prior art with the hardware carrier of this application. The computer software program involved in the entity functional module is itself a technology known to those skilled in the art, and it is not an improvement of this application. The improvement of this application is the interaction relationship between the entity functional modules, that is, the improvement of the overall structure of the bearing grease injection device with quantitative mechanism of this application, so as to solve the corresponding technical problem to be solved by this application.

[0030] This utility model provides, for example Figure 1-7 The illustrated bearing grease injection device includes a grease injection machine 1 and a main body for grease injection into the bearing.

[0031] Bearing platform 2 is fixedly installed above grease injection machine 1 for placing bearings. A drive controller 3 (model of drive controller 3 is HT1621, which can be purchased from the manufacturer) is fixedly installed on the outside of grease injection machine 1. Material feeding racks 4 are fixedly installed on both sides of the outside of grease injection machine 1. A feeding hopper 5 is fixedly installed on the top of the feeding rack 4. A feeding pipe 9 is fixedly installed at the bottom of the feeding hopper 5. An electromagnetic control valve 10 is fixedly connected to the bottom of the feeding pipe 9. A coarse pusher cylinder 11 is fixedly installed at the bottom of the electromagnetic control valve 10.

[0032] The servo motor 12 is fixedly installed at the front end of the coarse pusher cylinder 11 and is used to fix the output end to the spiral pusher 13. The tail end of the coarse pusher cylinder 11 is fixedly connected to the metering chamber 14. The metering chamber 14 is fixedly installed inside the grease injection machine 1. Elastic wave sensors 15 are fixedly installed on the outside of the metering chamber 14.

[0033] A partition plate 16 is fixedly installed inside the grease injection machine 1 to divide the internal space of the grease injection machine 1. A first feed pump 17 is fixedly installed above the partition plate 16. A first suction pipe 18 is fixedly installed at the output end of the first feed pump 17. A buffer chamber 19 is fixedly connected to the other end of the first suction pipe 18. A weighing plate 20 is fixedly installed inside the buffer chamber 19. A weighing sensor 21 is fixedly installed below the weighing plate 20. A second feed pump 22 is fixedly installed below the bearing platform 2. A second suction pipe 18 is fixedly installed at the output end of the second feed pump 22. Pipe 23, the second feed pump 22 is fixedly connected to the buffer chamber 19, and multiple elastic wave sensors 15 (the model of elastic wave sensor 15 is WS100, which can be purchased from the manufacturer) are installed on the outside of the metering chamber 14. The elastic wave sensor 15 emits elastic waves and transmits the propagation time of the elastic waves to the drive controller 3. The volume of oil is calculated by the change in time, and a secondary quantitative calculation is performed. Then the quantitatively measured oil is pumped into the buffer chamber 19. Multiple weighing sensors 21 are also installed inside the buffer chamber 19 to accurately weigh the delivered oil.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a limit frame 6 is threadedly connected to the upper part of the feeding rack 4. A limit ring 7 is fixedly installed inside the limit frame 6. A bearing grease cylinder 8 is fixedly installed inside the limit ring 7. The bearing grease cylinder 8 can store grease in batches and is used to push grease to the bearing for grease injection at any time. The limit frame 6 is threadedly connected to the feeding rack 4. The bearing grease cylinder 8 and the feeding hopper 5 are vertically distributed. The limit frame 6 is used to assist the bearing grease cylinder 8 to be placed vertically above the feeding hopper 5 for grease to flow out. The spiral push rod 13 is rotatably connected to the coarse push cylinder 11. The metering chamber 14 is symmetrically arranged with respect to the central axis of the grease injection machine 1. The grease is vertically downward under the influence of the feeding hopper 5. It is first controlled by the electromagnetic control valve 10 to be quantitatively fed into the coarse push cylinder 11. Then, the spiral push rod 13 inside the coarse push cylinder 11 pushes the grease into the metering chamber 14.

[0035] like Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the number of weighing sensors 21 is set to multiple, and the multiple weighing sensors 21 are evenly distributed on the buffer chamber 19 (the model of the weighing sensor 21 is: BSS-250KG, which can be purchased from the manufacturer). The quantitative grease is pumped into the buffer chamber 19. Multiple weighing sensors 21 are also installed inside the buffer chamber 19 to accurately weigh the delivered grease. The other end of the second pumping pipe 23 is fixedly connected to a grease injection ring 24. A grease injection head 25 is fixedly installed above each grease injection ring 24. A bearing grease injection plate 26 is sleeved on the outside of the grease injection head 25. The bearing grease injection plate 26 is fixedly connected to the bearing base 2. Multiple grease injection heads 25 can evenly inject grease into the bearing and complete the grease injection work smoothly.

[0036] The working principle of this utility model is as follows: First, connect the external power supply, take out the bearing to be greased, and place the bearing directly on the bearing grease injection tray 26. Then, take out the bearing grease cylinder 8 and insert it vertically between the limiting rings 7 and place it into the feeding hopper 5. The grease is then vertically downward under the influence of the feeding hopper 5 and is first quantitatively fed into the coarse feeding cylinder 11 by the electromagnetic control valve 10. Then, turn on the servo motor 12 to drive the spiral push rod 13 to rotate. The grease is pushed into the metering chamber 14 by the spiral push rod 13 inside the coarse feeding cylinder 11, thus completing the quantitative coarse calculation. Then, multiple elastic wave sensors 15 are set on the outside of the metering chamber 14. The elastic wave sensors 15 emit elastic waves and transmit the elastic wave propagation time to the drive controller 3. The grease volume is calculated by the time change, and a second quantitative calculation is performed. Then, turn on the first feeding pump 17 to allow the first feeding pump 17 to draw the quantitative grease through the first extraction pipe 18 and input it into the buffer. In chamber 19, multiple weighing sensors 21 are installed inside the buffer chamber 19 to accurately weigh the injected grease. This allows for three quantitative calculations of the amount of grease injected, giving the bearing grease injection device a quantitative mechanism. This quantitative mechanism, through multi-method coordinated control, allows for precise control of the grease injection error. Moreover, this quantitative mechanism reduces manual intervention and significantly increases the grease injection speed. After the quantitative grease is extracted for the grease injection requirements of different bearings, the second feed pump 22 is turned on to extract the quantitative grease and input it into the grease injection ring 24. The grease injection head 25 on the grease injection ring 24 then evenly injects the grease into the bearing. Finally, the operator can flip the bearing over after grease injection to continue grease injection, thus completing the installation and use of the bearing grease injection device. After completion, the servo motor 12 switch, the first feed pump 17, and the second feed pump 22 switch are turned off. If not used for a long time, the external power supply can be disconnected. This completes the use of the bearing grease injection device with a quantitative mechanism.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bearing lubricant injection device having a metering mechanism, characterized by: The application relates to a bearing grease injection machine. The bearing grease injection machine comprises a main body for bearing grease injection; a bearing table is fixedly arranged above the main body and used for placing bearings; a drive controller is fixedly arranged outside the main body; two material placing racks are fixedly arranged outside the main body; a lower hopper is fixedly arranged above the material placing rack; a lower feeding pipe is fixedly arranged at the bottom of the lower hopper; an electromagnetic control valve is fixedly connected to the bottom of the lower feeding pipe; and a rough pushing cylinder is fixedly arranged at the bottom of the electromagnetic control valve. A servo motor is fixedly arranged at the front end of the rough pushing cylinder and used for fixedly connecting a screw pushing rod to the output end of the servo motor; a metering cavity is fixedly connected to the tail end of the rough pushing cylinder; the metering cavity is fixedly arranged inside the main body; and elastic wave sensors are fixedly arranged outside the metering cavity. A partition plate is fixedly arranged inside the main body and used for partitioning the internal space of the main body; a first material conveying pump is fixedly arranged above the partition plate; a first suction pipe is fixedly arranged at the output end of the first material conveying pump; a buffer cavity is fixedly connected to the other end of the first suction pipe; a weighing plate is fixedly arranged inside the buffer cavity; weighing sensors are fixedly arranged below the weighing plate; a second material conveying pump is fixedly arranged below the bearing table; a second suction pipe is fixedly arranged at the output end of the second material conveying pump; and the second material conveying pump is fixedly connected to the buffer cavity. A limiting frame is threadedly connected to the upper portion of the material placing rack; a limiting ring is fixedly arranged inside the limiting frame; and a bearing grease cylinder is fixedly arranged inside the limiting ring.

2. The bearing lubricating device with the quantitative mechanism according to claim 1, characterized in that: The limiting frame is threadedly connected to the material placing rack; and the bearing grease cylinder is vertically arranged with the lower hopper.

3. The bearing lubricating device with the quantitative mechanism according to claim 2, characterized in that: The screw pushing rod is rotationally connected to the rough pushing cylinder; and the metering cavity is symmetrically arranged with the central axis of the main body.

4. The bearing lubricant injection device with a quantitative mechanism according to claim 1, characterized in that: The weighing sensors are arranged in multiple numbers and are equidistantly arranged on the buffer cavity.

5. The bearing lubricator with a quantitative mechanism according to claim 1, characterized in that: The second suction pipe is fixedly connected to a grease injection ring; grease injection heads are fixedly arranged above the grease injection ring; a bearing grease injection disc is sleeved outside the grease injection head; and the bearing grease injection disc is fixedly connected to the bearing table.

6. The bearing lubricator with a quantitative mechanism according to claim 1, characterized in that: ​

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