A cleaning robot gear box that is easy to maintain

Abstract

The utility model relates to mechanical drive technical field discloses a kind of cleaning robot gearboxes convenient to maintain, including shell, the shell bottom is rotatably connected with two rotary brush heads, the shell bottom is fixedly connected with power device, the power device output end is fixedly connected with gear box, the gear box bottom is abutted with oil sump, the oil sump bottom is all screw thread connection with four screws, the gear box one end is screw thread connection with oiling screw, the oil sump bottom is screw thread connection with oil drain screw, the gear box both sides are fixedly connected with two tires. In the utility model, four screw structure drives oil sump structure screw thread connection in the bottom of gear box, detachably connect oil sump, facilitate regular disassembly inspection and clean inside sludge, can let user regularly replace ageing lubricating grease, avoid gear wear, jam, prolong life, reduce maintenance difficulty and cost effect.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, and in particular to a gearbox for a cleaning robot that is easy to maintain. Background Technology

[0002] With the intelligent upgrade of home and commercial cleaning scenarios, cleaning robots have become a necessity. The performance and reliability of their core transmission gearbox directly affect the product's competitiveness. Different scenarios have specific requirements for gearboxes, such as low noise, lightweight, high torque, and dust prevention. However, traditional gearboxes have obvious pain points. To adapt to miniaturization, they adopt an integrated sealed design, which leads to complicated disassembly and assembly. Ordinary users cannot maintain them independently. The commonality of vulnerable parts is poor, and replacement depends on original parts and professional services, which is costly and time-consuming. In addition, they lack status monitoring functions, and failures cannot be predicted in advance. They often suddenly jam, make abnormal noises, etc., which affect use and even burn out the motor, causing secondary losses.

[0003] The market offers a wide variety of easy-to-maintain cleaning robot gearbox structures, including those that reduce noise with special structures, drive multiple components with a single motor, have a lubrication mechanism for circulating oil, feature unique multi-box combination transmission, multi-stage gear transmission to prevent water ingress, optimize space layout, and have quick-release designs. These are widely used in various cleaning equipment such as sweepers and floor scrubbers and are compatible with various cleaning methods such as dual-rotation mopping.

[0004] If the gearbox of a cleaning robot designed for easy maintenance is not equipped with an oil change device, the grease will age and deteriorate due to high temperature and impurities after long-term operation. This will increase gear meshing friction, accelerate wear, cause jamming or abnormal noise, and shorten the service life. Replacing the grease requires complete disassembly of the gearbox, which is difficult for non-professional users to operate and may damage precision components, increasing maintenance difficulty and cost. At the same time, the sludge formed by the aging grease adsorbing contaminants will continue to deteriorate the working environment, creating a vicious cycle that may eventually lead to the complete failure of the gearbox. Therefore, a maintenance-friendly gearbox for cleaning robots is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a maintenance-friendly cleaning robot gearbox. It aims to improve upon existing technologies by adding an oil change device and an easy-to-maintain observation port to the maintenance-friendly cleaning robot gearbox, which can significantly improve maintenance performance and practical value. The former allows users to regularly replace aged grease, avoiding gear wear and jamming, extending life, and eliminating the need to disassemble the gearbox, thus reducing maintenance difficulty and cost. The latter enables visualization of the internal status, facilitating quick fault location, timely handling of minor problems, and reducing the risk of fault deterioration and secondary damage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A maintenance-friendly cleaning robot gearbox includes a housing with two rotating brush heads rotatably connected to the bottom of the housing. A power unit is fixedly connected to the bottom of the housing, and a gearbox is fixedly connected to the output end of the power unit. An oil pan is abutted against the bottom of the gearbox, and four screws are threaded to the bottom of the oil pan.

[0008] As a further description of the above technical solution:

[0009] One end of the gearbox is threaded with an oil filler screw, and the bottom of the oil pan is threaded with an oil drain screw.

[0010] As a further description of the above technical solution:

[0011] Two tires are rotatably connected to both sides of the gearbox.

[0012] As a further description of the above technical solution:

[0013] A sensor is installed at one end of the outer casing.

[0014] As a further description of the above technical solution:

[0015] The tire is rotatably connected to the bottom of the outer shell.

[0016] As a further description of the above technical solution:

[0017] The four screws are threaded onto the bottom of the gearbox.

[0018] As a further description of the above technical solution:

[0019] A fixed bracket is fixedly connected to the bottom of the outer shell, and a scraper is fixedly connected to the bottom of the fixed bracket.

[0020] As a further description of the above technical solution:

[0021] The two fixed brackets are fixedly connected to both sides of the power unit.

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

[0023] 1. In this utility model, the oil pan structure is threadedly connected to the bottom of the gearbox by four screws, and the oil pan is detachably connected, which facilitates regular disassembly, inspection and cleaning of internal sludge. This significantly improves maintenance performance and practical value: it allows users to regularly replace aged grease, avoid gear wear and jamming, extend life, and does not require disassembly of the gearbox, making it easy to check the condition of the internal gears, reducing maintenance difficulty and cost.

[0024] 2. In this utility model, with the cooperation of the gearbox structure, the oil filling screw and the oil drain screw at the bottom of the oil pan are made to work, which facilitates the quick and thorough discharge of waste oil in the gearbox, so as to significantly extend the service life of the gearbox. Because the oil can be changed regularly to maintain good lubrication, the wear of parts is reduced, and the maintenance cost is also reduced. At the same time, it reduces the failures such as jamming and abnormal noise caused by poor lubrication, and improves the stability of robot operation and cleaning efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a maintenance-friendly cleaning robot gearbox proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the outer shell of the gearbox of a cleaning robot that is easy to maintain, as proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Housing; 2. Rotating brush head; 3. Sensor; 4. Tire; 5. Gearbox; 6. Oil filler screw; 7. Oil pan; 8. Drain screw; 9. Power unit; 10. Screw; 11. Scraper; 12. Mounting bracket. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-3One embodiment of this utility model is a maintenance-friendly cleaning robot gearbox, including a shell 1. The shell 1 is injection molded from high-strength engineering plastic. Two rotating brush heads 2 are rotatably connected to the bottom of the shell 1. The brush heads are designed with a combination of wear-resistant nylon bristles and an elastic base to clean dust and hair from the ground. A power unit 9 is fixedly connected to the bottom of the shell 1. A gearbox 5 is fixedly connected to the output end of the power unit 9. An oil pan 7 is abutted against the bottom of the gearbox 5. Four screws 10 are threadedly connected to the bottom of the oil pan 7. Two tires 4 are rotatably connected to both sides of the gearbox 5. A sensor 3 is installed at one end of the outer shell 1. The sensor 3 embedded at the front end of the outer shell 1 can perceive obstacles and ground materials in real time, providing data support for robot path planning. The tires 4 are rotatably connected to the bottom of the outer shell 1. The tires 4 are made of high-elasticity rubber material and have built-in reinforcing ribs. They are rotatably connected to the bottom of the outer shell 1 through bearings, enabling the robot to move flexibly. A fixed bracket 12 is fixedly connected to the bottom of the outer shell 1. A scraper 11 is fixedly connected to the bottom of the fixed bracket 12. The scraper 11 is made of industrial-grade silicone material, which can scrape off stains by adhering to the ground. The two fixed brackets 12 are fixedly connected to both sides of the power unit 9, and the two fixed brackets 12 are symmetrically distributed on both sides of the power unit 9 to ensure balanced force. In terms of maintenance design, the bottom of the gearbox 5 is detachably connected to the oil pan 7 through four stainless steel screws 10, which facilitates regular disassembly, inspection and cleaning of internal sludge.

[0032] Reference Figure 3 One end of the gearbox 5 is threaded with an oil filler screw 6. The oil filler screw 6 is made of brass and has anti-slip texture on its outer surface. It also has an oil-resistant rubber sealing ring at the connection point with the gearbox 5, effectively preventing lubricant leakage while achieving a threaded seal. The bottom of the oil pan 7 is threaded with an oil drain screw 8. The oil drain screw 8 at the bottom of the oil pan 7 is also made of brass and has a tapered bottom design. It also has an oil-resistant sealing ring at the contact point with the oil pan 7, facilitating the quick and thorough drainage of waste oil from the gearbox 5. Four screws 10 are threaded together... At the bottom of gearbox 5, four screws 10 for fixing oil pan 7 and gearbox 5 are made of stainless steel, which has good rust resistance. They are threaded to the bottom of gearbox 5, making the connection secure and easy to disassemble. There is an oil filling screw 6 on one side of gearbox 5, and a corresponding oil drain screw 8 at the bottom of oil pan 7. Both are made of brass with sealing rings. The threaded seal allows for convenient replacement of lubricating oil without disassembling the entire gearbox. Simply unscrew the drain screw 8 to drain the old lubricating oil, and then add new oil through the oil filling screw 6, which greatly reduces the difficulty of maintenance.

[0033] Working Principle: During operation, the power unit 9 is activated, transmitting power to the gearbox 5. Through precise gear transmission within the gearbox 5, the two tires 4 rotate smoothly, enabling the cleaning robot to move flexibly. Simultaneously, the two rotating brush heads 2 rotate at high speed to efficiently clean the floor. The sensor 3 at one end of the outer shell 1 continuously senses the surrounding environment, providing data support for path planning and other aspects of the cleaning operation, making the cleaning process more intelligent. The scraper 11, connected to the fixed bracket 12 at the bottom of the outer shell 1, effectively removes stubborn stains from the floor. During maintenance, the gearbox 5 can be easily lubricated using the oil filler screw 6 at one end. The drain screw 8 at the bottom of the oil pan 7 allows for easy drainage of waste oil. Four screws 10 secure the oil pan 7, facilitating disassembly for inspection and maintenance of the gearbox 5's interior. This allows for regular replacement of aged grease, preventing gear wear and jamming, extending the gearbox 5's lifespan, and reducing malfunctions such as jamming and abnormal noises caused by poor lubrication. This significantly improves the robot's operational stability and cleaning efficiency.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A maintenance-friendly cleaning robot gearbox, comprising a housing (1), characterized in that: The bottom of the outer shell (1) is rotatably connected to two rotating brush heads (2). The bottom of the outer shell (1) is fixedly connected to a power device (9). The output end of the power device (9) is fixedly connected to a gearbox (5). The bottom of the gearbox (5) abuts against an oil pan (7). The bottom of the oil pan (7) is threaded with four screws (10).

2. The easy-to-maintain cleaning robot gearbox according to claim 1, characterized in that: One end of the gearbox (5) is threaded with an oil filler screw (6), and the bottom of the oil pan (7) is threaded with an oil drain screw (8).

3. The easy-to-maintain cleaning robot gearbox according to claim 1, characterized in that: Two tires (4) are rotatably connected to both sides of the gearbox (5).

4. The easy-to-maintain cleaning robot gearbox according to claim 1, characterized in that: A sensor (3) is provided at one end of the outer casing (1).

5. The easy-to-maintain cleaning robot gearbox according to claim 3, characterized in that: The tire (4) is rotatably connected to the bottom of the outer shell (1).

6. The easy-to-maintain cleaning robot gearbox according to claim 1, characterized in that: The four screws (10) are threaded onto the bottom of the gearbox (5).

7. The easy-to-maintain cleaning robot gearbox according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to a fixed bracket (12), and the bottom of the fixed bracket (12) is fixedly connected to a scraper (11).

8. The easy-to-maintain cleaning robot gearbox according to claim 7, characterized in that: The two fixed brackets (12) are fixedly connected to both sides of the power unit (9).

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