Lubricating device for heavy escalator chain

By designing a lubrication device for heavy-duty escalator chains, a uniform distribution of lubricating oil is achieved using an oil pump and oil brush, solving the problems of uneven lubrication and waste in existing technologies, reducing maintenance difficulty and cost, and extending the service life of the chains.

CN223938624UActive Publication Date: 2026-02-24SUZHOU TIANLONG CHAIN
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Patent Information

Application Number
CN202520912660.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-10
Publication Date
2026-02-24
Estimated Expiration
2035-05-10

AI Technical Summary

Technical Problem

Existing heavy-duty escalator chain lubrication devices require disassembly for lubrication, which increases maintenance difficulty and workload. Furthermore, uneven lubrication or waste of lubricating oil can affect the normal operation and service life of the escalator.

Method used

A lubrication device for heavy-duty escalator chains was designed. The lubricating oil is evenly delivered to the oil distribution tank by an oil pump. The lubricating oil is evenly distributed when the chain rotates by the oil delivery pipe and oil brush. The contact pressure is adjusted by a hydraulic telescopic rod, and the residual lubricating oil is collected in the collection chamber, reducing waste and the frequency of manual maintenance.

Benefits of technology

It achieves uniform distribution of lubricating oil, reduces lubricating oil waste and the frequency of manual maintenance, lowers usage costs and wear, ensures sufficient lubrication of all parts of the chain, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of escalator maintenance, and discloses a heavy escalator chain lubricating device which comprises an escalator mounting plate, a driving assembly is arranged on one side face of the escalator mounting plate, an escalator chain body is mounted outside the driving assembly, and two connecting rods are fixedly connected to one side face of the escalator mounting plate. According to the lubricating device for the heavy escalator chain, lubricating oil in the lubricating oil tank can be uniformly conveyed into the oil distributing tank through the effect of the oil pump, then the lubricating oil uniformly enters the U-shaped plate through the oil conveying pipe and uniformly covers the surface of the oil brush, and at the moment, the surface of the escalator chain body is brushed with oil while the escalator chain body rotates; by means of the mode, the waste of the lubricating oil and the frequency of manual maintenance can be reduced, the use cost and the maintenance difficulty are reduced, it is guaranteed that all parts of the escalator chain body are fully lubricated, and abrasion is reduced.
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Description

Technical Field

[0001] This application relates to the field of escalator maintenance technology, specifically a lubrication device for heavy-duty escalator chains. Background Technology

[0002] Heavy-duty escalators, as indispensable vertical transportation equipment in large public places and high-rise buildings, undertake the task of transporting a large number of people and goods. Their chain drive system, as one of the core components of escalator operation, directly affects the safety, stability, and service life of the escalator. During operation, the chain of a heavy-duty escalator needs to withstand large loads and frequent start-stop impacts, and its operating speed is relatively slow. This necessitates that the chain possess excellent lubrication properties to reduce wear, lower noise, and extend its service life.

[0003] Currently, existing chain lubrication devices have many shortcomings in use. They require disassembling the chain before lubrication can be performed, which not only increases the difficulty and workload of maintenance but also affects the normal uptime of the escalator. Furthermore, existing lubrication devices are difficult to precisely control the amount and distribution of lubricating oil during the lubrication process, which can easily lead to uneven lubrication or waste. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a lubrication device for heavy-duty escalator chains, which brushes oil onto the surface of the heavy-duty escalator chain while it rotates, achieving uniform distribution of lubricating oil, effectively reducing lubricating oil waste, and improving lubrication effect, thus solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, this application provides the following technical solution: a lubrication device for a heavy-duty escalator chain, comprising an escalator mounting plate, a drive assembly on one side of the escalator mounting plate, an escalator chain body mounted on the outside of the drive assembly, two connecting rods fixedly connected to one side of the escalator mounting plate, a base fixedly connected to one end of the two connecting rods away from the side of the escalator mounting plate, an oil brush assembly above the base, the oil brush assembly comprising a U-shaped plate, an oil brush fixedly mounted on the inner side of the U-shaped plate, an oil distribution tank above the oil brush, multiple oil supply pipes fixedly mounted on the outside of the oil distribution tank, a fixing plate fixedly connected to one side of the U-shaped plate, an oil pump fixedly connected to the upper surface of the fixing plate, a first connecting pipe fixedly connected to the output end of the oil pump, the output end of the oil pump communicating with the inside of the oil distribution tank through the first connecting pipe, a lubricating oil tank fixedly connected to one side of the escalator mounting plate, a second connecting pipe fixedly connected to the input end of the oil pump, and the end of the second connecting pipe away from the input end of the oil pump extending through the outer surface of the lubricating oil tank into the inside of the lubricating oil tank.

[0006] The above solution utilizes an oil pump to evenly distribute lubricating oil from the oil tank to the distribution tank. The lubricating oil then flows evenly through the oil pipe into the U-shaped plate and coats the surface of the oil brush. Simultaneously, as the escalator chain rotates, the surface is coated with oil, ensuring uniform distribution. This method reduces lubricating oil waste and the frequency of manual maintenance, lowers operating costs and maintenance difficulty, and ensures that all parts of the escalator chain are adequately lubricated, reducing wear.

[0007] Furthermore, the end of each oil pipe furthest from the oil distribution tank is fixedly connected to the inner wall of the U-shaped plate, and each oil pipe is evenly distributed on the upper surface of the U-shaped plate.

[0008] With the above solution, the oil supply pipes are evenly distributed on the U-shaped plate, which ensures that the surface of the oil brush is covered with lubricating oil when supplying lubricating oil, thereby ensuring that all parts of the escalator chain are adequately lubricated.

[0009] Furthermore, the oil brush is U-shaped and made of silicone.

[0010] The above solution, by setting up an oil brush, can evenly coat all parts of the escalator chain body, and its material properties can reduce wear on the escalator chain body, thereby increasing its service life.

[0011] Furthermore, the drive assembly includes a reducer fixedly connected to the outer surface of the escalator mounting plate. A servo motor is fixedly connected to the input end of the reducer, and the outer surface of the servo motor is fixedly embedded in the outer surface of the escalator mounting plate. A transmission sprocket is fixedly connected to the output end of the reducer, and the transmission sprocket is connected to the main body of the escalator chain.

[0012] The above scheme, through the function of setting up a reducer, servo motor and transmission sprocket, the servo motor can be started to transmit power to the inside of the reducer, and the reducer can reduce speed and increase torque, thereby stably driving the transmission sprocket to rotate, thus stably driving the main body of the escalator chain to move and making the escalator run stably.

[0013] Furthermore, a support plate is fixedly connected to one side of the base, and a hydraulic telescopic rod is fixedly embedded in the bottom surface of the support plate. The output end of the hydraulic telescopic rod is fixedly connected to the bottom surface of the fixed plate.

[0014] The above solution utilizes a hydraulic telescopic rod to adjust the overall height of the brushing assembly, thereby changing the contact pressure between the brushing assembly and the escalator chain, and ultimately improving the service life of the escalator chain.

[0015] Furthermore, two symmetrical guide rods are fixedly connected to the bottom surface of the fixing plate, and the outer surface of the guide rods is inserted into the inner wall of the support plate.

[0016] The above solution, by setting up guide rods, can limit and guide the movement of the fixed plate and the painting components, so that the two can move in a precise direction and ensure stable painting of the escalator chain.

[0017] Furthermore, a flow collection cavity is provided on the inner side of the base, and a third connecting pipe is fixedly connected to the bottom surface of the base. The inner wall of the third connecting pipe is connected to the inner wall of the flow collection cavity.

[0018] The above solution guides the dripping residual lubricating oil by setting up a collection cavity, ensuring that the lubricating oil flows stably to the inside of the third connecting pipe for collection, thus avoiding lubricating oil waste.

[0019] Furthermore, a protective box is fixedly connected to the bottom surface of the third connecting pipe, the inner wall of the protective box is connected to the inner wall of the third connecting pipe, and a collection box is placed inside the protective box.

[0020] The above solution allows for the collection of lubricating oil flowing into the protective box by setting up a collection box. The lubricating oil can then be recycled and reused, reducing the company's operating costs and the need for new lubricating oil. The protective box also shields the lubricating oil flowing into the box, preventing external dust from entering and contaminating it.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This heavy-duty escalator chain lubrication device, through the action of an oil pump, can evenly deliver lubricating oil from the oil tank to the oil distribution tank. Then, the lubricating oil enters the interior of the U-shaped plate evenly through the oil delivery pipe and evenly covers the surface of the oil brush. At this time, while the escalator chain body is rotating, its surface is brushed with oil, achieving uniform distribution of lubricating oil. This method can reduce lubricating oil waste and the frequency of manual maintenance, reduce operating costs and maintenance difficulty, and ensure that all parts of the escalator chain body are fully lubricated, reducing wear. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a three-dimensional structural diagram of the driving component of this application;

[0025] Figure 3 This is a three-dimensional structural diagram of the base and brushing assembly of this application;

[0026] Figure 4 This is a three-dimensional structural diagram of the base, oil pump, and hydraulic telescopic rod of this application;

[0027] Figure 5 This is a three-dimensional structural diagram of the base of this application;

[0028] Figure 6 This is a schematic diagram of the internal structure of the protective box in this application.

[0029] In the picture:

[0030] 1. Escalator mounting plate; 2. Drive assembly; 201. Reducer; 202. Servo motor; 203. Transmission sprocket; 3. Escalator chain body; 4. Connecting rod; 5. Base; 6. Oil brush assembly; 601. U-shaped plate; 602. Oil brush; 603. Oil distribution tank; 604. Oil delivery pipe; 7. Fixing plate; 8. Oil pump; 9. First connecting pipe; 10. Support plate; 11. Second connecting pipe; 12. Hydraulic telescopic rod; 13. Guide rod; 14. Collection cavity; 15. Third connecting pipe delivery pipe; 16. Protective box; 17. Collection box; 18. Lubricating oil tank. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3This embodiment provides a lubrication device for a heavy-duty escalator chain, including an escalator mounting plate 1. A drive assembly 2 is provided on one side of the escalator mounting plate 1. The drive assembly 2 includes a reducer 201 fixedly connected to the outer surface of the escalator mounting plate 1. A servo motor 202 is fixedly connected to the input end of the reducer 201, and the outer surface of the servo motor 202 is fixedly embedded in the outer surface of the escalator mounting plate 1. A transmission sprocket 203 is fixedly connected to the output end of the reducer 201. The transmission sprocket 203 is connected to the escalator chain body 3. By utilizing the reducer 201, servo motor 202, and transmission sprocket 203, starting the servo motor 202 transmits power to the reducer 201, which then reduces and increases torque, thus stably driving the transmission sprocket 203 to rotate. This stably drives the escalator chain body 3 to move and ensures stable escalator operation. The escalator chain body 3 is mounted on the outside of the drive assembly 2. Two connecting rods 4 are fixedly connected to one side of the escalator mounting plate 1, and the two connecting rods 4 are located away from the escalator mounting plate 1. A base 5 is fixedly connected to one end of one side of the mounting plate 1. An oil brush assembly 6 is provided above the base 5. The oil brush assembly 6 includes a U-shaped plate 601. An oil brush 602 is fixedly installed on the inner side of the U-shaped plate 601. An oil distribution tank 603 is provided above the oil brush 602. Multiple oil delivery pipes 604 are fixedly installed on the outside of the oil distribution tank 603. The end of each oil delivery pipe 604 away from the oil distribution tank 603 is fixedly connected to the inner wall of the U-shaped plate 601. Each oil delivery pipe 604 is evenly distributed on the upper surface of the U-shaped plate 601. The oil supply pipes 604 are evenly distributed on the U-shaped plate 601, which ensures that the surface of the oil brush 602 is covered with lubricating oil when supplying lubricating oil, thereby ensuring that all parts of the escalator chain body 3 are adequately lubricated. The oil brush 602 is U-shaped and made of silicone. By setting the oil brush 602, it can evenly coat all parts of the escalator chain body 3, and its material properties can reduce wear on the escalator chain body 3, thereby improving its service life.

[0033] Please see Figure 1 , Figure 3 and Figure 4A fixing plate 7 is fixedly connected to one side of the U-shaped plate 601. An oil pump 8 is fixedly connected to the upper surface of the fixing plate 7. A first connecting pipe 9 is fixedly connected to the output end of the oil pump 8. The output end of the oil pump 8 is connected to the inside of the oil distribution tank 603 through the first connecting pipe 9. A lubricating oil tank 18 is fixedly connected to one side of the escalator mounting plate 1. A second connecting pipe 11 is fixedly connected to the input end of the oil pump 8. Both the first connecting pipe 9 and the second connecting pipe 11 are flexible hoses, so that the lubricating oil can be stably delivered while the brushing assembly 6 is raised and lowered. The end of the second connecting pipe 11 away from the input end of the oil pump 8 extends through the outer surface of the lubricating oil tank 18 and into the inside of the lubricating oil tank 18. By setting the oil pump 8, the lubricating oil inside the lubricating oil tank 18 can be evenly delivered to the inside of the oil distribution tank 603. Then the lubricating oil is delivered through... The oil supply pipe 604 evenly enters the interior of the U-shaped plate 601 and evenly covers the surface of the oil brush 602. At this time, while the escalator chain body 3 rotates, oil is brushed onto its surface to achieve uniform distribution of lubricating oil. This method can reduce the waste of lubricating oil and the frequency of manual maintenance, reduce the cost of use and maintenance difficulty, and ensure that all parts of the escalator chain body 3 are fully lubricated, reducing wear. A support plate 10 is fixedly connected to one side of the base 5. A hydraulic telescopic rod 12 is fixedly embedded on the bottom surface of the support plate 10. The output end of the hydraulic telescopic rod 12 is fixedly connected to the bottom surface of the fixed plate 7. By setting the hydraulic telescopic rod 12, the overall height of the oil brushing assembly 6 can be driven, thereby adjusting the contact pressure of the oil brushing assembly 6 on the escalator chain body 3, thereby improving the service life of the escalator chain body 3.

[0034] Please see Figure 4 , Figure 5 and Figure 6Two symmetrical guide rods 13 are fixedly connected to the bottom surface of the fixed plate 7, and the outer surface of the guide rods 13 is inserted into the inner wall of the bracket plate 10. By setting the guide rods 13, the movement of the fixed plate 7 and the oiling assembly 6 can be limited and guided, so that the two can move in a precise direction and ensure stable oiling of the escalator chain body 3. A collection cavity 14 is opened on the inner side of the base 5, and a third connecting pipe 15 is fixedly connected to the bottom surface of the base 5. The inner wall of the third connecting pipe 15 is connected to the inner wall of the collection cavity 14. By setting the collection cavity 14, the dripping residual lubricating oil can be guided to ensure that the lubricating oil is properly contained. The lubricating oil flows steadily into the third connecting pipe 15 and is collected inside to avoid waste. A protective box 16 is fixedly connected to the bottom surface of the third connecting pipe 15. The inner wall of the protective box 16 is connected to the inner wall of the third connecting pipe 15. A collection box 17 is placed inside the protective box 16. By setting up the collection box 17, the lubricating oil flowing into the protective box 16 can be collected and then recycled and reused, which can reduce the company's operating costs and reduce the demand for new lubricating oil. The protective box 16 can also shield and protect the lubricating oil flowing into it, preventing external dust from entering the interior of the protective box 16 and contaminating the lubricating oil.

[0035] In this embodiment, a lubrication device for a heavy-duty escalator chain utilizes an oil pump 8 to evenly deliver lubricating oil from the oil tank 18 to the distribution tank 603. The lubricating oil then flows evenly through the oil pipe 604 into the U-shaped plate 601 and evenly covers the surface of the oil brush 602. Simultaneously, the escalator chain body 3 rotates while the chain is being oiled, achieving uniform distribution of lubricating oil. This method reduces lubricating oil waste and the frequency of manual maintenance, lowers operating costs and maintenance difficulty, and ensures that all parts of the escalator chain body 3 are adequately lubricated, reducing wear.

[0036] The working principle of the above embodiment is as follows: When the chain needs to be lubricated, the power of the servo motor 202 first drives the transmission sprocket 203 to rotate through the reduction and torque increase of the reducer 201, thereby driving the escalator chain body 3 to rotate. Then, while the escalator chain body 3 is rotating, part of it will pass through the groove of the base 5. Then, the hydraulic telescopic rod 12 is activated to drive the fixed plate 7 and the U-shaped plate 601 to move downward. While moving, it can move vertically stably under the limit guidance of the guide rod 13. When the U-shaped plate 601 descends to the appropriate position, the oil brush 602 can contact the surface of the escalator chain body 3. Then, the oil pump is activated. 8. The lubricating oil inside the lubricating oil tank 18 is transported to the inside of the oil distribution tank 603 through the second connecting pipe 11 and the first connecting pipe 9. Then, the lubricating oil entering the oil distribution tank 603 is diverted through the oil delivery pipe 604 and flows evenly into the oil brush 602 and is evenly adsorbed on the surface of the oil brush 602. At this time, the oil brush 602 can brush the moving escalator chain body 3. Finally, after the brushing work is completed, the remaining lubricating oil is guided into the inside of the protective box 16 through the collection chamber 14 and the third connecting pipe delivery pipe 15, and drips into the inside of the collection box 17 for storage. This realizes the recycling and reuse of lubricating oil, thereby reducing enterprise costs.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubrication device for a heavy-duty escalator chain, comprising an escalator mounting plate (1), characterized in that: One side of the escalator mounting plate (1) is provided with a drive assembly (2), and an escalator chain body (3) is installed on the outside of the drive assembly (2). Two connecting rods (4) are fixedly connected to one side of the escalator mounting plate (1). A base (5) is fixedly connected to one end of the two connecting rods (4) away from the side of the escalator mounting plate (1). An oil brush assembly (6) is provided above the base (5). The oil brush assembly (6) includes a U-shaped plate (601). An oil brush (602) is fixedly installed on the inner side of the U-shaped plate (601). An oil distribution tank (603) is provided above the oil brush (602). Multiple oil distribution tanks (603) are fixedly installed on the outside of the oil distribution tank (603). Oil pipe (604), a fixing plate (7) is fixedly connected to one side of the U-shaped plate (601), an oil pump (8) is fixedly connected to the upper surface of the fixing plate (7), a first connecting pipe (9) is fixedly connected to the output end of the oil pump (8), the output end of the oil pump (8) is connected to the inside of the oil distribution tank (603) through the first connecting pipe (9), a lubricating oil tank (18) is fixedly connected to one side of the escalator mounting plate (1), a second connecting pipe (11) is fixedly connected to the input end of the oil pump (8), and the end of the second connecting pipe (11) away from the input end of the oil pump (8) extends through the outer surface of the lubricating oil tank (18) to the inside of the lubricating oil tank (18).

2. The lubrication device for a heavy-duty escalator chain according to claim 1, characterized in that: Each of the oil pipes (604) is fixedly connected to the inner wall of the U-shaped plate (601) at the end away from the oil distribution tank (603), and each of the oil pipes (604) is evenly distributed on the upper surface of the U-shaped plate (601).

3. The lubrication device for a heavy-duty escalator chain according to claim 1, characterized in that: The oil brush (602) is U-shaped and made of silicone.

4. The lubrication device for a heavy-duty escalator chain according to claim 1, characterized in that: The drive assembly (2) includes a reducer (201) fixedly connected to the outer surface of the escalator mounting plate (1). The input end of the reducer (201) is fixedly connected to a servo motor (202), and the outer surface of the servo motor (202) is fixedly embedded in the outer surface of the escalator mounting plate (1). The output end of the reducer (201) is fixedly connected to a transmission sprocket (203), and the transmission sprocket (203) is connected to the escalator chain body (3) in a transmission connection.

5. The lubrication device for a heavy-duty escalator chain according to claim 1, characterized in that: A support plate (10) is fixedly connected to one side of the base (5), and a hydraulic telescopic rod (12) is fixedly embedded on the bottom surface of the support plate (10). The output end of the hydraulic telescopic rod (12) is fixedly connected to the bottom surface of the fixing plate (7).

6. The lubrication device for a heavy-duty escalator chain according to claim 5, characterized in that: The bottom surface of the fixed plate (7) is fixedly connected to two symmetrical guide rods (13), and the outer surface of the guide rods (13) is inserted into the inner wall of the bracket plate (10).

7. The lubrication device for a heavy-duty escalator chain according to claim 1, characterized in that: The inner side of the base (5) is provided with a flow collection cavity (14), and the bottom surface of the base (5) is fixedly connected to a third connecting pipe (15). The inner wall of the third connecting pipe (15) is connected to the inner wall of the flow collection cavity (14).

8. The lubrication device for a heavy-duty escalator chain according to claim 7, characterized in that: A protective box (16) is fixedly connected to the bottom surface of the third connecting pipe (15). The inner wall of the protective box (16) is connected to the inner wall of the third connecting pipe (15). A collection box (17) is placed inside the protective box (16).