Quantitative automatic filling device for automobile wheel hub bearing grease

Abstract

The utility model relates to a kind of quantitative automatic filling device of automobile wheel hub bearing lubricating grease, belong to the technical field of automobile maintenance equipment.The device includes grease tank, support frame, controller, filling pump, filling hose and filling spray head, the filling pump is fixedly installed in the side of support frame, the lower end of grease tank is fixedly installed with discharge valve, the discharge valve is installed with filter assembly below, the filling hose is installed between filling pump both ends and filter assembly and filling spray head, flow sensor, solenoid valve and pressure sensor are installed on the filling hose, the controller is fixedly installed in the side of grease tank, and filling pump, flow sensor, solenoid valve, pressure sensor and discharge valve are electrically connected with controller.The filling device realizes the automation, quantitative filling of lubricating grease, improves filling efficiency and filling accuracy, reduces manual operation intensity, and is suitable for lubricating grease filling operation of various automobile wheel hub bearings.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair equipment technology, and in particular to a quantitative automatic grease filling device for automotive wheel hub bearings. Background Technology

[0002] Wheel bearings are key components in automotive chassis systems, primarily responsible for supporting wheel rotation and ensuring vehicle stability and safety. To reduce wear on internal parts, lower operating noise, and extend bearing life, grease needs to be added to the wheel bearings periodically. This is mainly done manually, with operators using a hand-held grease gun to manually press and inject the grease into the bearing.

[0003] The existing manual grease filling operation is slow and relies entirely on the operator's experience to judge the amount of grease to be added. This can easily lead to insufficient or excessive filling. Insufficient filling will result in poor bearing lubrication, accelerate the wear of parts, and shorten the bearing's service life. Excessive filling will waste grease, increase maintenance costs, and make it difficult to meet the needs of batch maintenance operations.

[0004] Therefore, this utility model proposes a quantitative automatic grease filling device for automotive wheel hub bearings. Utility Model Content

[0005] Therefore, in order to overcome the problem that common automatic grease filling devices for automotive wheel hub bearings rely entirely on the operator's experience to judge the amount of grease to be added, which can easily lead to insufficient or excessive filling, insufficient filling will result in poor bearing lubrication, accelerated wear of parts, and shorten bearing life, while excessive filling will cause grease waste.

[0006] The technical solution of this utility model is as follows: an automatic quantitative filling device for automotive wheel hub bearing grease, comprising a grease tank, a support frame, a controller, a filling pump, a filling hose, and a filling nozzle. The grease tank is fixedly installed above the support frame, the filling pump is fixedly installed on one side of the support frame, a discharge valve is fixedly installed at the lower end of the grease tank, a filter assembly is installed below the discharge valve, and the filter assembly is connected to the discharge valve. The filling hose is installed between the two ends of the filling pump and the filter assembly and the filling nozzle. A flow sensor, a solenoid valve, and a pressure sensor are installed on the filling hose, and the pressure sensor, solenoid valve, and flow sensor are sequentially arranged at the rear end of the filling nozzle. The controller is fixedly installed on one side of the grease tank, and the filling pump, flow sensor, solenoid valve, pressure sensor, and discharge valve are electrically connected to the controller.

[0007] Preferably, the filter assembly includes a filter cylinder, a filter element, a cylinder cover, and a connecting hole. The filter element is fixedly installed inside the filter cylinder, the cylinder cover is installed on top of the filter cylinder and is threadedly connected to the filter cylinder, and the connecting hole is located at the lower end of the filter cylinder and the upper end of the cylinder cover.

[0008] Preferably, a connecting plate is fixedly installed at the rear end of the filling nozzle, and a connecting bolt assembly is installed through the connecting plate. Two connecting bolt assemblies are installed, and the two connecting bolt assemblies are installed at both ends of the connecting plate.

[0009] Preferably, a motor is fixedly installed above the grease storage tank, and a stirring paddle is rotatably installed inside the grease storage tank. The upper end of the stirring paddle is connected to the output end of the motor, and the motor is electrically connected to the controller.

[0010] Preferably, a temperature sensor is fixedly installed on one side of the grease storage tank and is connected to the grease storage tank. An electric heating element is installed inside the bottom shell of the grease storage tank, and the temperature sensor and the electric heating element are electrically connected to the controller.

[0011] Preferably, the upper end of the grease tank is provided with a filling cover, and the filling cover is threadedly connected to the grease tank. A discharge valve and a liquid level sensor are fixedly installed on one side of the grease tank, and the discharge valve and the liquid level sensor are connected to the grease tank. The liquid level sensor is electrically connected to the controller.

[0012] Preferably, a take-up frame is fixedly installed on one side of the support frame. Two take-up frames are installed and arranged in an L-shape.

[0013] Preferably, a set of four walking wheel assemblies is fixedly installed on the lower part of the support frame, and the four walking wheel assemblies are installed at the four corners of the support frame.

[0014] The beneficial effects of this utility model are: 1. When using this automatic quantitative grease filling device for automotive wheel hub bearings, the filling pump, filling hose, filling nozzle, flow sensor, solenoid valve, and pressure sensor are configured. The filling nozzle is aligned with the filling port of the wheel hub bearing, and the pressure sensor monitors the pressure in the filling hose. When the pressure is insufficient, the controller controls the filling pump, flow sensor, and solenoid valve to open. Under the action of the filling pump, the grease is delivered along the filling hose and then injected into the wheel hub bearing through the filling nozzle. The flow sensor monitors the flow rate of the grease in real time, and the pressure sensor monitors the pressure in the pipeline. The controller adjusts the working status of the filling pump according to preset parameters to ensure that the grease is delivered at a suitable flow rate and pressure. 2. When using this automatic quantitative grease filling device for automotive wheel hub bearings, the grease in the grease tank flows into the filter assembly through the filter component. The filter element filters the grease to remove any impurities that may be present, ensuring that the grease added to the automotive wheel hub bearings is of good quality. 3. When in use, this automatic quantitative grease filling device for automotive wheel hub bearings utilizes a motor, temperature sensor, liquid level sensor, stirring paddle, and electric heating element. The motor drives the stirring paddle to rotate, stirring the grease to prevent sedimentation or stratification and ensure its uniformity. The temperature sensor monitors the temperature of the grease in the grease tank in real time. When the temperature is lower than the set value, the controller activates the electric heating element to heat the grease, maintaining its appropriate fluidity. The liquid level sensor monitors the grease level in the grease tank in real time. When the level is too low, the operator is reminded to add grease through the filling cap. 4. When using this automatic quantitative grease filling device for automotive wheel hub bearings, the walking wheel assembly supports the filling device through the setting of the cable take-up frame. The walking wheel assembly facilitates the movement of the entire device. The operator can move the device to different working positions as needed. Unused filling hoses are wound on the cable take-up frame to store excess filling hoses and avoid excess filling hoses from crossing and knotting. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 This utility model is shown. Figure 1 A magnified view of a portion of area A; Figure 3 The diagram shown illustrates the connection relationship between the filling nozzle and the filling hose of this utility model. Figure 4 The diagram shows the connection relationship between the stirring paddle and filter assembly and the grease storage tank of this utility model. Figure 5 The diagram shows the connection relationship between the cap and the filter cylinder of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Grease tank; 2. Support frame; 3. Wheel assembly; 4. Feeding cover; 5. Motor; 6. Discharge valve; 7. Temperature sensor; 8. Liquid level sensor; 9. Controller; 10. Filling pump; 11. Cable retractor; 12. Filling hose; 13. Filling nozzle; 14. Flow sensor; 15. Solenoid valve; 16. Pressure sensor; 17. Connecting plate; 18. Connecting bolt assembly; 19. Stirring paddle; 20. Discharge valve; 21. Filter assembly; 2101. Filter cylinder; 2102. Filter element; 2103. Cylinder cover; 2104. Connecting hole; 22. Electric heating element. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0021] Please see Figures 1-5This utility model provides a technical solution: an automatic quantitative filling device for automotive wheel hub bearing grease, comprising a grease tank 1, a support frame 2, a controller 9, a filling pump 10, a filling hose 12, and a filling nozzle 13. The grease tank 1 is fixedly installed above the support frame 2, the filling pump 10 is fixedly installed on one side of the support frame 2, a discharge valve 20 is fixedly installed at the lower end of the grease tank 1, a filter assembly 21 is installed below the discharge valve 20, and the filter assembly 21 is connected to the discharge valve 20. The filling hose 12 is installed between the two ends of the filling pump 10 and the filter assembly 21 and the filling nozzle 13. A flow sensor 14, a solenoid valve 15, and a pressure sensor 16 are installed on the filling hose 12, and the pressure sensor 16, the solenoid valve 15, and the flow sensor 14 are arranged sequentially at the rear end of the filling nozzle 13. The controller 9 is fixedly installed on one side of the grease tank 1, and the filling pump 10, the flow sensor 14, the solenoid valve 15, the pressure sensor 16, and the discharge valve 20 are electrically connected to the controller 9.

[0022] The filling nozzle 13 is aligned with the filling port of the wheel hub bearing. The pressure sensor 16 monitors the pressure inside the filling hose 12 and feeds this data back to the controller 9. When the pressure is insufficient, the controller 9 controls the discharge valve 20, the filling pump 10, the flow sensor 14, and the solenoid valve 15 to open. The grease in the grease tank 1 flows into the filter assembly 21 through the discharge valve 20 for filtration. The filtered grease enters the filling hose 12 and is transported along the filling hose 12 by the filling pump 10. It is then injected into the wheel hub bearing through the filling nozzle 13. The flow sensor 14 monitors the flow rate of the grease in real time, and the pressure sensor 16 monitors the pressure inside the pipeline and feeds this data back to the controller 9. The controller 9 adjusts the working state of the filling pump 10 according to preset parameters to ensure that the grease is delivered at a suitable flow rate and pressure.

[0023] The filter assembly 21 includes a filter cylinder 2101, a filter element 2102, a cylinder cover 2103, and a connecting hole 2104. The filter element 2102 is fixedly installed inside the filter cylinder 2101, the cylinder cover 2103 is installed on top of the filter cylinder 2101, and the cylinder cover 2103 is threadedly connected to the filter cylinder 2101. The connecting hole 2104 is located at the lower end of the filter cylinder 2101 and the upper end of the cylinder cover 2103.

[0024] The filter element 2102 in the filter assembly 21 filters the grease, removing any impurities that may be present, and ensuring that the grease added to the automotive wheel hub bearing is of good quality.

[0025] A connecting plate 17 is fixedly installed at the rear end of the filling nozzle 13. A connecting bolt assembly 18 is installed through the connecting plate 17. Two connecting bolt assemblies 18 are installed, and the two connecting bolt assemblies 18 are installed at both ends of the connecting plate 17.

[0026] The connection plate 17 and the connecting bolt assembly 18 facilitate the installation and disassembly of the filling nozzle 13, making it easy to maintain or replace it, and ensuring the firm connection between the filling nozzle 13 and the wheel hub bearing during the filling process.

[0027] A motor 5 is fixedly installed on the top of the grease tank 1. An agitator 19 is rotatably installed inside the grease tank 1, and the upper end of the agitator 19 is connected to the output end of the motor 5. The motor 5 is electrically connected to the controller 9.

[0028] Motor 5 drives the stirring paddle 19 to rotate, stirring the grease to prevent sedimentation or stratification and ensure the uniformity of the grease.

[0029] A temperature sensor 7 is fixedly installed on one side of the grease storage tank 1, and the temperature sensor 7 is connected to the grease storage tank 1. An electric heating element 22 is installed inside the bottom shell of the grease storage tank 1, and the temperature sensor 7 and the electric heating element 22 are electrically connected to the controller 9.

[0030] Temperature sensor 7 monitors the temperature of the grease in grease reservoir 1 in real time. When the temperature is lower than the set value, controller 9 controls electric heating element 22 to work and heat the grease to maintain its appropriate fluidity and ensure smooth grease filling.

[0031] The upper end of the grease tank 1 is provided with a feeding cover 4, and the feeding cover 4 is threadedly connected to the grease tank 1. A discharge valve 6 and a liquid level sensor 8 are fixedly installed on one side of the grease tank 1, and the discharge valve 6 and the liquid level sensor 8 are connected to the grease tank 1. The liquid level sensor 8 is electrically connected to the controller 9.

[0032] The level sensor 8 monitors the grease level in the grease tank 1 in real time. When the level is too low, it sends a signal to the controller 9 to remind the operator to add grease through the filling cap 4. The discharge valve 6 is used to discharge the remaining grease in the tank when it is necessary to clean the grease tank 1 or replace the grease.

[0033] A take-up rack 11 is fixedly installed on one side of the support frame 2. There are two take-up racks 11, and the take-up racks 11 are arranged in an L-shape.

[0034] Unused refill hoses 12 are wound around the take-up rack 11 to store excess refill hoses 12 and prevent them from crossing or tangling.

[0035] Four walking wheel assemblies 3 are fixedly installed on the bottom of the support frame 2, and the four walking wheel assemblies 3 are installed at the four corners of the support frame 2.

[0036] The wheel assembly 3 supports the filling device, making it easy to move the entire device. Operators can move the device to different working positions as needed, improving the flexibility and convenience of the device.

[0037] Working principle: See Figures 1-4 As shown, open the feeding cover 4 to add grease into the grease tank 1, turn on the motor 5 to drive the stirring paddle 19 to rotate and stir the grease. The temperature sensor 7 monitors the temperature of the grease in the grease tank 1 in real time. When the temperature is lower than the set value, the controller 9 controls the electric heating element 22 to work and heat the grease so that the grease is at a suitable temperature. See Figure 1 , Figure 2 and Figure 3 As shown, the filling nozzle 13 is aligned with the filling port of the wheel hub bearing. The filling nozzle 13 is fixed by the connecting plate 17 and the connecting bolt assembly 18. The pressure sensor 16 monitors the pressure in the filling hose 12 and feeds this data back to the controller 9. When the pressure is insufficient, the controller 9 controls the discharge valve 20, the filling pump 10, the flow sensor 14 and the solenoid valve 15 to open. The grease in the grease tank 1 flows into the filter assembly 21 through the discharge valve 20 for filtration. The filtered grease enters the filling hose 12 and is transported along the filling hose 12 by the filling pump 10. Then it is injected into the wheel hub bearing through the filling nozzle 13. See Figure 2 and Figure 3 As shown, the flow sensor 14 monitors the flow rate of the grease in real time, and the pressure sensor 16 monitors the pressure in the pipeline and feeds these data back to the controller 9. The controller 9 adjusts the working state of the filling pump 10 according to the preset parameters to ensure that the grease is delivered at a suitable flow rate and pressure. See Figure 1 and Figure 4 As shown, the level sensor 8 monitors the grease level in the grease tank 1 in real time. When the level is too low, it will send a signal to the controller 9 to remind the operator to add grease through the filling cover 4 and open the discharge valve 6 to discharge the remaining grease in the grease tank 1. See Figure 1 As shown, after filling is completed, the unused filling hose 12 is wound and stored by the cable retractor 11, and the entire device can be easily moved with the help of the walking wheel assembly 3, and the device can be moved to different working positions as needed.

[0038] It should be noted that the motor 5, temperature sensor 7, liquid level sensor 8, controller 9, filling pump 10, flow sensor 14, solenoid valve 15, pressure sensor 16, discharge valve 20 and electric heating element 22 mentioned above can be powered by existing operating techniques. Whether the power supply is provided by the power supply component or by an external wire, it is all in accordance with existing conventional operating techniques and will not be described in detail here.

[0039] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic quantitative filling device for automotive wheel hub bearing grease, comprising a grease reservoir (1), a support frame (2), a controller (9), a filling pump (10), a filling hose (12), and a filling nozzle (13), characterized in that: The grease tank (1) is fixedly installed above the support frame (2), the filling pump (10) is fixedly installed on one side of the support frame (2), a discharge valve (20) is fixedly installed at the lower end of the grease tank (1), a filter assembly (21) is installed below the discharge valve (20), and the filter assembly (21) is connected to the discharge valve (20). The filling hose (12) is installed between the two ends of the filling pump (10) and the filter assembly (21) and the filling nozzle (13). A flow sensor (14), a solenoid valve (15), and a pressure sensor (16) are installed on the filling hose (12). The pressure sensor (16), the solenoid valve (15), and the flow sensor (14) are arranged sequentially at the rear end of the filling nozzle (13). The controller (9) is fixedly installed on one side of the grease tank (1). The filling pump (10), the flow sensor (14), the solenoid valve (15), the pressure sensor (16), and the discharge valve (20) are electrically connected to the controller (9).

2. The automatic metering device for adding grease to automotive wheel hub bearings according to claim 1, characterized in that: The filter assembly (21) includes a filter cylinder (2101), a filter element (2102), a cylinder cover (2103), and a connecting hole (2104). The filter element (2102) is fixedly installed inside the filter cylinder (2101). The cylinder cover (2103) is installed on top of the filter cylinder (2101) and is threadedly connected to the filter cylinder (2101). The connecting hole (2104) is located at the lower end of the filter cylinder (2101) and the upper end of the cylinder cover (2103).

3. The automatic metering device for adding grease to automotive wheel hub bearings according to claim 1, characterized in that: A connecting plate (17) is fixedly installed at the rear end of the filling nozzle (13). A connecting bolt assembly (18) is installed through the connecting plate (17). There are two connecting bolt assemblies (18), and the two connecting bolt assemblies (18) are installed at both ends of the connecting plate (17).

4. The automatic metering device for adding grease to automotive wheel hub bearings according to claim 1, characterized in that: A motor (5) is fixedly installed above the grease tank (1). A stirring paddle (19) is rotatably installed inside the grease tank (1), and the upper end of the stirring paddle (19) is connected to the output end of the motor (5). The motor (5) is electrically connected to the controller (9).

5. The automatic metering device for adding grease to automotive wheel hub bearings according to claim 1, characterized in that: A temperature sensor (7) is fixedly installed on one side of the fat storage tank (1), and the temperature sensor (7) is connected to the fat storage tank (1). An electric heating element (22) is installed inside the bottom shell of the fat storage tank (1), and the temperature sensor (7) and the electric heating element (22) are electrically connected to the controller (9).

6. The automatic metering device for adding grease to automotive wheel hub bearings according to claim 1, characterized in that: The upper end of the grease tank (1) is provided with a feeding cover (4), and the feeding cover (4) is threadedly connected to the grease tank (1). A discharge valve (6) and a liquid level sensor (8) are fixedly installed on one side of the grease tank (1), and the discharge valve (6) and the liquid level sensor (8) are connected to the grease tank (1). The liquid level sensor (8) is electrically connected to the controller (9).

7. The automatic metering device for adding grease to automotive wheel hub bearings according to claim 1, characterized in that: A take-up frame (11) is fixedly installed on one side of the support frame (2). There are two take-up frames (11), and the take-up frames (11) are arranged in an L-shape.

8. The automatic metering device for adding grease to automotive wheel hub bearings according to claim 1, characterized in that: A walking wheel assembly (3) is fixedly installed below the support frame (2). Four walking wheel assemblies (3) are installed, and the four walking wheel assemblies (3) are installed at the four corners of the support frame (2).

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