Grease collecting device for main shaft and bearing

Abstract

The utility model relates to a spindle and bearing grease collecting device which comprises a scraping device and a collecting box, the scraping device comprises a scraping plate and a guide plate, the guide plate is connected between the scraping plate and the collecting box and used for guiding grease on the scraping plate to the collecting box, the collecting box is suitable for being installed on a machine, and a containing cavity used for containing grease is formed in the collecting box. The lower end of the guide plate faces the containing cavity. The scraping plate at least comprises an arc-shaped plate, the inner diameter of the arc-shaped plate is suitable for being matched with the outer diameter of a main shaft of the machine, the concave face of the scraping plate is suitable for being attached to the main shaft, and the scraping plate is used for scraping grease overflowing from a bearing of the main shaft. The scraping plate can scrape grease overflowing from the bearing, and the guide plate guides the grease to the collection box for collection, so that the grease can be collected into the collection box along with the guide plate and cannot be accumulated on a main shaft or a machine, the overflowing grease is easy to remove, the grease can be conveniently cleaned, time and labor can be saved, and accumulation of the grease is prevented.

Description

Technical Field

[0001] The present disclosure relates to the technical field of collection of waste grease from bearings, and particularly to a grease collection device for a main shaft and a bearing. Background Art

[0002] To ensure sufficient lubrication of the main bearing during the operation of the unit, the unit adopts an automatic lubrication device to inject grease. An oil collecting tray is provided at the bottom of the main bearing. As new grease is injected, the grease drains and falls onto the oil collecting tray. However, due to the large amount of grease added, the grease overflows from the main shaft bearing. The grease has a certain viscosity and is not easy to automatically separate. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide a grease collection device for a main shaft and a bearing to at least partially solve the technical problems existing in the related art.

[0004] To achieve the above purpose, the present application provides a grease collection device for a main shaft and a bearing, including a scraping device and a collection box. The scraping device includes a scraping plate and a guiding plate;

[0005] The guiding plate is connected between the scraping plate and the collection box and is used to guide the grease on the scraping plate to the collection box;

[0006] The scraping plate at least includes an arc-shaped plate. The inner diameter of the arc-shaped plate is adapted to the outer diameter of the main shaft of the machine. The concave surface of the scraping plate is adapted to fit with the main shaft. The scraping plate is used to scrape the grease overflowing from the bearing of the main shaft.

[0007] The collection box is adapted to be detachably installed on the machine. A receiving cavity for accommodating grease is provided in the collection box. The lower end of the guiding plate faces the receiving cavity.

[0008] Optionally, two scraping devices are provided. The two scraping devices are symmetrically arranged on the horizontal two sides of the main shaft along the axis of the main shaft, and the two scraping devices are connected to each other;

[0009] The two scraping plates wrap a part of the main shaft.

[0010] Optionally, at least a part of the guiding plate is inclined, and the inclined parts of the two guiding plates on the two scraping devices are away from each other.

[0011] Optionally, the scraping plate further includes two first baffles located on both sides of the arc-shaped plate. A first flow channel for grease to flow is formed between the two first baffles and the convex surface of the arc-shaped plate;

[0012] Wherein, a first baffle is adapted to be in contact with the side surface of the inner ring of the bearing of the main shaft, and the upper side edge of the first baffle is adapted to scrape off the grease on the inner ring of the bearing.

[0013] Optionally, the guiding plate includes an inclined plate and second baffles located on both sides of the inclined plate, and a second flow channel for grease to flow is formed between the two second baffles and the inclined plate;

[0014] The first flow channel communicates with the second flow channel.

[0015] Optionally, the guiding plate further includes a third baffle, the upper end of the third baffle is provided with a first fitting side edge, the inner diameter of the first fitting side edge is adapted to the outer diameter of the main shaft, and the first fitting side edge is adapted to be in contact with the main shaft;

[0016] The portions of the two third baffles on the two scraping devices close to the first fitting side edge are joined.

[0017] Optionally, the guiding plate further includes a fourth baffle, the upper end of the fourth baffle is provided with a second fitting side edge, the inner diameter of the second fitting side edge is adapted to the outer diameter of the inner ring of the bearing of the main shaft, and the second fitting side edge is adapted to be in contact with the inner ring of the bearing;

[0018] The positions of the two fourth baffles on the two scraping devices close to the second fitting side edge are joined.

[0019] Optionally, an inner flow channel is formed between the third baffle, the fourth baffle and the inclined plate.

[0020] Optionally, a connecting buckle is provided on the third baffle, and the two connecting buckles on the two third baffles are connected by a tension spring.

[0021] Optionally, two connecting rods are provided on the inner wall of the collection box, and connecting holes are provided on the scraping device, and the connecting holes on the two scraping devices are sleeved on the connecting rods.

[0022] Through the above technical solutions, the designed scraping plate can scrape off the grease overflowing from the bearing of the main shaft, eliminating the need for staff to clean it. Moreover, a guiding plate is provided to guide the grease overflowing from the bearing to the collection box for collection, enabling the overflowing grease to be collected in the collection box along the guiding plate without accumulating on the main shaft or the machine. This makes it easy to remove the grease overflowing from the bearing of the main shaft without manual cleaning, facilitating the cleaning of grease, saving time and labor, and preventing the accumulation of grease.

[0023] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0024] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the accompanying drawings:

[0025] Figure 1 is a perspective schematic view of a collection device provided by an exemplary embodiment of the present disclosure;

[0026] Figure 2 is a perspective schematic view of another perspective of the collection device provided by an exemplary embodiment of the present disclosure;

[0027] Figure 3 is a perspective schematic view of a scraping device provided by an exemplary embodiment of the present disclosure, in which a tension spring is also shown;

[0028] Figure 4 is a perspective schematic view of a collection box provided by an exemplary embodiment of the present disclosure;

[0029] Figure 5 is a perspective schematic view of a collection device provided by an exemplary embodiment of the present disclosure, in which a main shaft and a bearing are shown;

[0030] Figure 6 is a perspective schematic view of another perspective of the collection device provided by an exemplary embodiment of the present disclosure, in which the main shaft and the bearing are shown and the third baffle is hidden.

[0031] Description of Reference Numerals

[0032] 100. Collection device, 10. Scraping device, 11. Scraping plate, 111. Arc plate, 112. First flow channel, 12. Guide plate, 121. Second flow channel, 122. Inner flow channel, 123. Inclined plate, 13. First baffle, 14. Second baffle, 15. Third baffle, 151. First fitting side, 152. Connection buckle, 16. Fourth baffle, 161. Second fitting side, 17. Tension spring, 18. Connection hole, 20. Collection box, 21. Accommodation cavity, 22. Connecting rod, 23. Fixed plate, 24. Mounting hole, 200. Main shaft, 300. Bearing, 301. Inner ring. Specific Embodiments

[0033] The following further details the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and do not limit the present disclosure.

[0034] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is defined based on the drawing direction shown in the drawings. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present disclosure.

[0035] In the present disclosure, it should be noted that terms such as "first", "second", etc. are used to distinguish one element from another, and do not have an order or importance. Additionally, in the description with reference to the drawings, the same reference numerals in different drawings represent the same elements.

[0036] In the description of the present disclosure, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", "coupled", "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0037] As Figures 1 to 6 shown, the present application provides a grease collection device 100 for a spindle and a bearing, including a scraping device 10 and a collection box 20. The scraping device 10 includes a scraping plate 11 and a guiding plate 12. The guiding plate 12 is connected between the scraping plate 11 and the collection box 20 and is used to guide the grease on the scraping plate 11 to the collection box 20. The scraping plate 11 at least includes an arc-shaped plate 111. The inner diameter of the arc-shaped plate 111 is adapted to the outer diameter of the spindle 200 of the machine. The concave surface of the scraping plate 11 is adapted to fit with the spindle 200. The scraping plate 11 is used to scrape the grease overflowing from the bearing 300 of the spindle 200. The collection box 20 is adapted to be detachably installed on the machine. A receiving cavity 21 for receiving grease is arranged in the collection box 20. The lower end of the guiding plate 12 faces the receiving cavity 21.

[0038] Through the above technical solution, the scraping plate 11 can scrape off the grease overflowing from the bearing 300 of the main shaft 200, eliminating the need for staff to clean it. Additionally, a guiding plate 12 is provided to guide the grease overflowing from the bearing 300 into the collection box 20. This enables the overflowing grease to be collected in the collection box 20 along the guiding plate 12, preventing it from accumulating on the main shaft 200 or the machine. As a result, it is easy to remove the grease overflowing from the bearing 300 of the main shaft 200 without manual cleaning, facilitating grease cleaning, saving time and labor, and preventing grease accumulation. In the present disclosure, the function of the scraping device 10 is to scrape off the grease overflowing from the main shaft 200 and the bearing 300. The arc-shaped plate 111 can be adapted to and fit with the main shaft 200. When the main shaft 200 rotates, a relative movement is formed between the upper edge of the arc-shaped plate 111 and the outer wall of the main shaft 200. Thus, the upper edge of the arc-shaped plate 111 can automatically scrape off the grease overflowing from the main shaft 200 and the bearing 300, reducing manual operation and saving time.

[0039] Among them, the adaptation between the arc-shaped plate 111 and the main shaft 200 can refer to Figure 5 the inner diameter of the arc-shaped plate 111 being the same as the outer diameter of the main shaft 200 as shown, facilitating the fitting and assembly between the two.

[0040] In the present disclosure, the guiding plate 12 connects the scraping plate 11 and the collection box 20, guiding the grease scraped off the scraping plate 11 into the collection box 20, thereby preventing grease from accumulating on the machine. As shown in Figure 1 and 2 one end of the guiding plate 12 is connected to the scraping plate 11. The guiding plate 12 is used to receive the grease scraped off the scraping plate 11, and the other end of the guiding plate 12 is connected to the collection box 20 to guide the grease into the interior of the collection box 20, facilitating the unified treatment of the grease.

[0041] Among them, due to the narrow space at the bottom of the main shaft 200 and the bearing 300, it is inconvenient for personnel to enter the narrow space, and it is impossible to clean the grease at the bottom from the side, resulting in partial grease accumulation. Therefore, the collection box 20 is detachably connected to the machine to facilitate grease collection. For example, when the collection box 20 is filled with a large amount of grease, the collection box 20 can be removed from the machine, the grease can be poured out, and then the collection box 20 can be cleaned. In this way, the collection box 20 can be reused.

[0042] In the present disclosure, the above-mentioned machine can be a wind turbine generator, and the main shaft 200 and the bearing 300 can be installed in the nacelle of the wind turbine generator.

[0043] The grease mentioned in this article can refer to waste grease or the excess grease overflowing from the bearing 300.

[0044] In this disclosure, Figure 1 and Figure 2 As shown, two scraping devices 10 can be provided, and the two scraping devices 10 are symmetrically arranged on the horizontal sides of the main shaft 200 along the axis of the main shaft 200, and the two scraping devices 10 are connected to each other, and the two scraping plates 11 wrap a part of the main shaft 200. The main shaft 200 is provided with scraping devices 10 on both sides in the horizontal direction, so that the grease of the main shaft 200 can be scraped off on both sides of the main shaft 200, that is, it can be ensured that the scraping device 10 can scrape off the grease on the main shaft 200 when the main shaft 200 rotates forward or reversely.

[0045] In this disclosure, Figure 2 As shown, at least part of the guide plate 12 can be tilted, and the tilted parts of the two guide plates 12 on the two scraping devices 10 are away from each other. In addition, the arc plate 111 is adapted to and attached to the main shaft 200. Such a configuration can ensure that the grease can flow into the collection box 20 along with the guide plate 12. The tilted guide plate 12 can make the grease have a force point and flow along the guide plate 12, thereby preventing the grease from being directly scattered or splashed and accumulated on the machine.

[0046] In this disclosure, Figures 1 to 2 As shown, the scraper plate 11 may also include two first baffles 13 located on both sides of the arc plate 111, and a first flow channel 112 for grease to flow is configured between the two first baffles 13 and the convex surface of the arc plate 111, wherein one first baffle 13 is suitable for fitting with the side surface of the inner ring 301 of the bearing 300 of the main shaft 200, and the upper edge of the first baffle 13 is suitable for scraping grease on the inner ring 301 of the bearing 300. Such a configuration can prevent grease from sliding off the side of the arc plate 111, which is conducive to ensuring that the grease can flow along the first flow channel 112.

[0047] Furthermore, since the first baffle 13 is suitable for being fitted with the side surface of the inner ring 301 of the bearing 300 of the main shaft 200, when the main shaft 200 rotates, the inner ring 301 of the bearing 300 rotates with the main shaft 200, so there is a relative movement between the inner ring 301 and the first baffle 13, and therefore, the upper edge of the first baffle 13 can scrape off the grease on the inner ring 301 of the bearing 300. That is, the first baffle 13 fitted with the inner ring 301 of the bearing 300 scrapes off the grease overflowing from the bearing 300, and the scraped grease can be placed in the first flow channel 112.

[0048] In this disclosure, Figures 1 to 2As shown, the guiding plate 12 may include an inclined plate 123 and second baffles 14 located on both sides of the inclined plate 123. A second flow channel 121 for the grease to flow is formed between the two second baffles 14 and the inclined plate 123, and the first flow channel 112 communicates with the second flow channel 121. With such an arrangement, it is possible to prevent the grease from slipping off the side of the guiding plate 12, which is beneficial to ensuring that the grease can flow along the first flow channel 112 to the second flow channel 121 and then flow into the collection box 20 from the second flow channel 121.

[0049] In the present disclosure, as Figures 5 to 6 shown, the guiding plate 12 may further include a third baffle 15. A first fitting side 151 is provided at the upper end of the third baffle 15. The inner diameter of the first fitting side 151 is adapted to the outer diameter of the main shaft 200. The first fitting side 151 is adapted to fit with the main shaft 200. The portions of the two third baffles 15 on the two scraping devices 10 close to the first fitting side 151 are joined. With such an arrangement, the first fitting side 151 fits with the main shaft 200, which can limit the grease on the main shaft 200 and prevent the grease on the main shaft 200 from falling to a position outside the collection box 20, causing the accumulation of grease.

[0050] In the present disclosure, as Figure 6 shown, the guiding plate 12 may further include a fourth baffle 16. A second fitting side 161 is provided at the upper end of the fourth baffle 16. The inner diameter of the second fitting side 161 is adapted to the outer diameter of the inner ring 301 of the bearing 300 of the main shaft 200. The second fitting side 161 is adapted to fit with the inner ring 301 of the bearing 300. The portions of the two fourth baffles 16 on the two scraping devices 10 close to the second fitting side 161 are joined. With such an arrangement, the second fitting side 161 fits with the inner ring 301 of the bearing 300, which can limit the grease on the inner ring 301 of the bearing 300 and prevent the grease on the inner ring 301 of the bearing 300 from falling to a position outside the collection box 20, causing the accumulation of grease. At this time, the grease overflowing between the inner ring 301 and the outer ring of the bearing 300 will not be blocked by the fourth baffle 16, so that the grease overflowing from the lower region of the bearing 300 can directly fall into the collection box 20.

[0051] In some embodiments of the present disclosure, the portions of the two fourth baffles 16 on the two scraping devices 10 close to the second fitting side 161 are joined, and the portions of the two third baffles 15 close to the first fitting side 151 are joined, that is, the upper sections of the third baffle 15 and the fourth baffle 16 are abutted against each other, and the first fitting side 151 is adapted to fit with the main shaft 200, and the second fitting side 161 is adapted to the inner ring 301 of the bearing 300, so as to ensure that the area between the main shaft 200 and the inner ring 301 of the bearing 300 can be closed by the third baffle 15 and the fourth baffle 16 to prevent the grease from leaking outside the collection box 20.

[0052] In the present disclosure, as Figures 1 to 3 shown, an inner flow passage 122 can be formed between the third baffle 15, the fourth baffle 16 and the inclined plate 123. With such an arrangement, it is possible to prevent grease from splashing to the outside of the collection box 20 when the main shaft 200 rotates, thereby ensuring that the grease flows into the collection box 20.

[0053] In the present disclosure, the fourth baffle 16 that fits against the inner ring 301 of the bearing 300 can also scrape off the grease adhered to the inner ring 301 of the bearing 300 during rotation, and the grease is placed in the inner flow passage 122. Under the guidance of the inner flow passage 122, the overflowing grease automatically flows into the collection box 20.

[0054] In the present disclosure, as Figure 1 shown, connection buckles 152 can be provided on the third baffle 15, and the two connection buckles 152 on the two third baffles 15 are connected by a tension spring 17. With such an arrangement, the distance between the two scraping devices 10 can be adjusted, that is, through the elastic connection of the two sets of arc-shaped plates 111, under the elastic contraction of the tension spring 17, the two arc-shaped plates 111 can be clamped on the main shaft 200 to ensure the clamping of the arc-shaped plate 111 and the main shaft 200, facilitating the fitting connection between the arc-shaped plate 111 and the main shaft 200, and being beneficial for the scraping plate 11 to adapt to main shafts 200 of various sizes.

[0055] In the present disclosure, as Figure 4 shown, two connecting rods 22 are provided on the inner wall of the collection box 20, and connection holes 18 are provided on the scraping device 10. The connection holes 18 on the two scraping devices 10 are sleeved on the connecting rods 22. With such an arrangement, it is convenient for the scraping device 10 to be connected to the collection box 20, and the connection holes 18 on the scraping device 10 being sleeved on the connecting rods 22 can enable the scraping device 10 to rotate on the collection box 20.

[0056] In some embodiments of the present disclosure, a fixing plate 23 with a plurality of mounting holes 24 is fixedly installed at the bottom of the collection box 20. Through a bolt-nut group, the bolt is passed through the mounting hole 24, and with the cooperation of the fixing plate 23, the collection box 20 can be fixedly installed on a machine (such as inside the chassis of a wind turbine).

[0057] During specific use, the two arc-shaped plates 111 are stretched outwards, and the two scraping devices 10 are rotated around the connecting rod 22 as the axis. The two scraping plates 11 move away from each other. At the same time, the tension spring 17 is elastically stretched to generate an elastic contraction force. Then, the two arc-shaped plates 111 are clamped on the main shaft 200, and the fourth baffle 16 is made to fit against the inner ring 301 of the bearing 300. Under the elastic contraction force of the tension spring 17, the arc-shaped plates 111 are clamped on the main shaft 200. The collection box 20 is fixed to the machine through a bolt-nut set. When new grease is added between the main shaft 200 rotates or the inner ring 301 and the outer ring of the bearing 300, the grease flows into the collection box 20 for automatic collection under the guidance of the first flow channel 112, the second flow channel 121, and the inner flow channel 122. Moreover, when the main shaft 200 rotates and drives the inner ring 301 of the bearing 300 to rotate, the first baffle 13 and the upper edges of the arc-shaped plates 111 can scrape and clean the grease adhered to the surfaces of the main shaft 200 and the inner ring 301 of the bearing 300, realizing the automatic scraping of the overflowing grease on the bearing 300.

[0058] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept scope of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0059] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without contradiction. The present disclosure will not separately describe various possible combination methods.

[0060] Furthermore, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A grease collection device for a main shaft and a bearing, characterized in that: It includes a scraping device and a collecting box, wherein the scraping device includes a scraping plate and a guide plate; The scraper plate at least comprises an arc-shaped plate, the inner diameter of the arc-shaped plate is adapted to fit the outer diameter of the main shaft of the machine, the concave surface of the scraper plate is adapted to fit the main shaft, and the scraper plate is used to scrape off the grease overflowing from the bearing of the main shaft; The guide plate is connected between the scraper plate and the collection box, and is used to guide the grease on the scraper plate to the collection box; The collecting box is suitable for being detachably mounted on the machine. A receiving cavity for receiving grease is arranged in the collecting box, and the lower end of the guide plate faces the receiving cavity.

2. The grease collection device for the main shaft and the bearing according to claim 1, characterized in that: Two scraping devices are provided, and the two scraping devices are symmetrically arranged on two horizontal sides of the main shaft along the axis of the main shaft, and the two scraping devices are connected to each other; The two scraper plates wrap around portions of the spindle.

3. The grease collection device for the main shaft and the bearing according to claim 2, characterized in that: At least part of the guide plate is arranged tilted, and the tilted parts of the two guide plates on the two scraping devices are away from each other.

4. The grease collection device for the main shaft and the bearing according to claim 1, characterized in that: The scraper plate further comprises two first baffles located on both sides of the arc-shaped plate, and a first flow channel for grease to flow is constructed between the two first baffles and the convex surface of the arc-shaped plate; Among them, one of the first baffles is suitable for fitting with the side surface of the inner ring of the bearing of the main shaft, and the upper edge of the first baffle is suitable for scraping grease on the inner ring of the bearing.

5. The grease collection device for the main shaft and the bearing according to claim 4, characterized in that: The guide plate includes an inclined plate and second baffles located on both sides of the inclined plate, and a second flow channel for the grease to flow is constructed between the two second baffles and the inclined plate; The first flow channel is communicated with the second flow channel.

6. The grease collection device for the main shaft and the bearing according to claim 5, characterized in that: The guide plate further comprises a third baffle, wherein a first fitting side edge is disposed at an upper end of the third baffle, wherein an inner diameter of the first fitting side edge is adapted to an outer diameter of the main shaft, and the first fitting side edge is adapted to fit with the main shaft; The two third baffles on the two scraping devices are joined at portions close to the first fitting side edges.

7. The grease collection device for the main shaft and the bearing according to claim 6, characterized in that: The guide plate further includes a fourth baffle, a second fitting side edge is disposed at the upper end of the fourth baffle, the inner diameter of the second fitting side edge is adapted to the outer diameter of the inner ring of the main shaft bearing, and the second fitting side edge is suitable for fitting with the inner ring of the bearing; The two fourth baffles on the two scraping devices are joined at a position close to the second fitting side edge.

8. The grease collection device for the main shaft and the bearing according to claim 7, characterized in that: An inner flow channel is formed between the third baffle plate, the fourth baffle plate and the inclined plate.

9. The grease collection device for the main shaft and the bearing according to claim 6, characterized in that: The third baffle plate is provided with a connecting buckle, and the two connecting buckles on the two third baffle plates are connected by a tension spring.

10. The grease collection device for the main shaft and the bearing according to claim 2, characterized in that: Two connecting rods are arranged on the inner wall of the collecting box, and connecting holes are arranged on the scraping device. The connecting holes on the two scraping devices are sleeved on the connecting rods.

Images