A bearing cleaning method and equipment

Abstract

This invention relates to the field of bearing cleaning auxiliary equipment technology, specifically a bearing cleaning method and equipment. The method includes: S1, installing the bearing 5 on a bearing mounting assembly; S2, covering the bearing with a liquid-dispensing mechanism to seal the liquid outlet end of the mechanism against the upper edge of the bearing's outer ring; S3, the liquid-dispensing mechanism dispenses liquid into the bearing, allowing the cleaning fluid to flow through the gaps inside the bearing, thereby cleaning the bearing; S4, repeating step S3 until the bearing reaches the set cleaning standard. In practice, this invention features a compact overall structure, requires no complex power drive, and can be adapted to diverse power systems. The entire cleaning action can be completed simply by dispensing liquid through the liquid-dispensing mechanism, expanding the application scenarios of the device.

Description

Technical Field

[0001] This invention relates to the field of bearing cleaning auxiliary equipment technology, specifically a bearing cleaning method and equipment. Background Technology

[0002] Bearings are a crucial component among aircraft wheel parts. Conventional cleaning methods typically involve equipment or manual cleaning. Manual bearing cleaning uses brushes, resulting in poor cleaning effectiveness and low efficiency. Furthermore, manual cleaning is inconvenient as gloves cannot be worn, and prolonged immersion or contact with oil during cold winters can be harmful to cleaning personnel. Bearing cleaning equipment can completely solve the problem of personnel coming into contact with oil.

[0003] Chinese utility model patent announcement number CN215142601U discloses a cleaning device for aircraft wheel bearings. The device includes a liquid storage tank, hydraulic pipelines, a hydraulic pump, a cleaning fluid circulation pipeline, a controller, a drive motor, and a cleaning chamber. The liquid storage tank is located below the cleaning chamber. A sealed container is provided inside the liquid storage tank. The inlet end of the hydraulic pump is located inside the liquid storage tank. The cleaning chamber is equipped with a spray system, a cleaning basket, and a mounting base. The spray system includes a middle pipeline, an upper spray piston cleaning mechanism, and a lower spray piston cleaning mechanism. The mounting base includes a base and an end cap. The drive motor is located inside the sealed container and drives the end cap to rotate around the base. The upper end of the cleaning fluid circulation pipeline is fixedly connected to the bottom surface of the cleaning chamber, and the lower end extends into the liquid storage tank.

[0004] While the aforementioned equipment can avoid manual cleaning, its large size poses numerous inconveniences for aircraft crew maintenance and repair. Other similar equipment is also bulky, relies on electricity and machinery for its power system, has significant site limitations, cannot respond quickly to special situations, and is difficult to clean thoroughly inside bearing clearances, resulting in long cleaning times and low efficiency. Therefore, a solution is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a bearing cleaning method and equipment with a compact structure, small size, good cleaning effect and short cleaning time.

[0006] To achieve the above objectives, the present invention provides the following technical solution;

[0007] The invention provides a bearing cleaning method, comprising the following steps:

[0008] S1. Install bearing 5 onto the bearing mounting assembly;

[0009] S2. Cover the liquid dispensing mechanism onto the bearing to seal the liquid outlet end of the liquid dispensing mechanism with the upper edge of the outer ring of the bearing;

[0010] S3. The liquid injection mechanism injects liquid into the bearing, allowing the cleaning fluid to flow through the gaps inside the bearing, thereby cleaning the bearing.

[0011] S4. Repeat step S3 until the bearing reaches the set cleaning standard.

[0012] Furthermore, in step S3, after the cleaning fluid flows through the gap inside the bearing, the cleaning fluid is recovered using a storage chamber.

[0013] Furthermore, a liquid channel is provided between the liquid storage cavity and the liquid dispensing mechanism to allow the cleaning liquid to flow unidirectionally from the liquid storage cavity to the liquid dispensing mechanism; before the liquid dispensing mechanism dispenses the cleaning liquid to the bearing in step S3, the liquid dispensing mechanism uses the liquid channel to extract the cleaning liquid from the liquid storage cavity.

[0014] Furthermore, the liquid dispensing mechanism includes a pressure shaft cover, a cleaning cylinder communicating with the pressure shaft cover, a cylinder head slidably disposed in the cleaning cylinder, and a drive rod for driving the cylinder head to reciprocate; the inner bottom of the liquid storage cavity is provided with a positioning ring, and the pressure shaft cover is positioned and covered on the bearing by the positioning ring.

[0015] Furthermore, the pressure shaft cover is provided with at least one sealing groove for sealing the upper edge of the bearing outer ring and pressing the bearing down onto the bearing mounting assembly.

[0016] Furthermore, the pressure shaft cover has a trumpet-shaped structure, and multiple sealing grooves are provided, which are distributed in multiple layers along the pressure shaft cover; the sealing groove includes a first groove top and a second groove top.

[0017] Furthermore, a positioning cover is provided below the pressure shaft cover, and the inner wall of the positioning cover is provided with a positioning groove for cooperating with the positioning ring; the positioning cover is also provided with a liquid passage hole.

[0018] Furthermore, the bearing mounting assembly includes a top shaft base, a top shaft sleeve slidably fitted on the top shaft base, and a top shaft spring mounted on the top shaft base; the top shaft spring is used to push the top shaft sleeve so that the bearing mounted on the top shaft sleeve abuts against the sealing groove.

[0019] Furthermore, the top shaft base is provided with a hollow structure communicating with the liquid storage cavity. A one-way valve body is installed at the end of the hollow structure. The one-way valve body includes a valve seat connected to the end of the top shaft base, a valve rod rotatably mounted on the valve seat, and a valve cover installed at the end of the valve rod. The valve cover is used to cover the end of the hollow structure. When the valve cover is opened, the liquid storage cavity is connected to the liquid outlet of the dispensing mechanism. The hollow structure and the one-way valve body constitute the liquid channel.

[0020] Furthermore, the outer wall of the top shaft sleeve has at least one bearing support; the bearing support is used to support the bottom of the bearing.

[0021] Furthermore, the liquid storage cavity also includes a cover, which is connected to the outer wall of the cleaning tank and covers the upper edge of the liquid storage cavity.

[0022] Furthermore, the inner side of the cover body is provided with a venting component; the venting component includes a splash guard disposed below the cover body and a sealing cover disposed between the cover body and the splash guard; there is a venting gap between the edge of the splash guard and the liquid storage cavity, the center of the sealing cover is connected to the outer wall of the cleaning tank, and the edge of the sealing cover is sealed and overlapped with the upper edge of the liquid storage cavity; a first gap communicating with the venting gap is provided between the splash guard and the sealing cover; a second gap is provided between the sealing cover and the cover body; a venting return hole communicating with the first gap and the second gap is opened near the outer wall of the cleaning tank on the sealing cover; a sealing venting groove communicating with the second gap is opened on the edge of the cover body.

[0023] The invention also provides a cleaning device for implementing the above-described bearing cleaning method.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] This invention provides a bearing cleaning method and equipment. In practical applications, the bearing mounting assembly is used for bearing installation and positioning. Once installed, the bearing mounting assembly seals and fixes the bearing to the liquid injection mechanism. During the cleaning process, the cleaning fluid enters the liquid injection mechanism to a specified capacity, and then the liquid injection mechanism pushes the cleaning fluid, driving it to flow through the internal gaps of the bearing to be cleaned, thus cleaning the internal gaps and surface of the bearing. The overall structure is compact, requires no complex power drive, and can be adapted to a variety of power systems. As long as the liquid injection mechanism pushes the fluid, the entire cleaning action can be completed, expanding the application scenarios of the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention;

[0028] Figure 3 This is a schematic diagram of the overall structure of the bearing mounting assembly in Embodiment 1 of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the bearing mounting assembly in Embodiment 1 of the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of the pressure shaft cover in Embodiment 1 of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the breathable component in this invention. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] refer to Figure 1-6 As shown, this embodiment provides a bearing cleaning method, including the following steps:

[0034] S1. Install bearing 5 onto bearing mounting assembly 2;

[0035] S2. Cover the liquid dispensing mechanism 3 onto the bearing 5 so that the liquid outlet end of the liquid dispensing mechanism 3 is sealed to the upper edge of the outer ring of the bearing 5.

[0036] S3, the liquid injection mechanism 3 injects liquid into the bearing 5, so that the cleaning liquid flows through the gap inside the bearing 5, thereby cleaning the bearing 5.

[0037] S4. Repeat step S3 until bearing 5 reaches the set cleaning standard.

[0038] In practical applications, the cleaning fluid is used as a cleaning medium to flush the bearing and the gap between the inner and outer rings of the bearing. The bearing mounting assembly 2 is used for the installation and positioning of the bearing 5. After installation, the bearing mounting assembly 2 seals and fixes the bearing 5 to the liquid dispensing mechanism 3. During the cleaning process, the cleaning fluid enters the liquid dispensing mechanism 3 to a specified capacity, and then the liquid dispensing mechanism 3 pushes the cleaning fluid, driving the cleaning fluid to flow through the internal gap of the bearing 5 to be cleaned, cleaning the internal gap and surface of the bearing 5. The overall structure is compact, does not require complex power drive, and can be adapted to a variety of power systems. As long as the liquid dispensing mechanism pushes the liquid, the overall cleaning action can be completed, expanding the application scenarios of the device.

[0039] In this embodiment, in step S3, after the cleaning fluid flows through the gap inside the bearing 5, the cleaning fluid is recovered using the liquid storage chamber 1. In this embodiment, a liquid channel is provided between the liquid storage chamber and the liquid dispensing mechanism to allow the cleaning fluid to flow unidirectionally from the liquid storage chamber to the liquid dispensing mechanism. Before the liquid dispensing mechanism dispenses the cleaning fluid to the bearing in step S3, the liquid dispensing mechanism uses the liquid channel to extract the cleaning fluid from the liquid storage chamber.

[0040] The liquid storage chamber 1 is used to store cleaning fluid, which is the cleaning medium for flushing the bearing and the gap between the inner and outer rings of the bearing. The bearing mounting assembly 2 is used for the installation and positioning of the bearing 5. When the bearing is installed, the bearing mounting assembly 2 seals and fixes the bearing 5 to the liquid pumping mechanism 3. When pumping, the liquid pumping mechanism 3 pumps the cleaning fluid out of the liquid storage chamber 1 and flows to the liquid pumping mechanism 3 through the one-way valve body 4 built into the bearing mounting assembly 2. A portion of the cleaning fluid will enter the liquid pumping mechanism 3 from the gap to be cleaned in the bearing 5, achieving a certain degree of cleaning. When pushing, the liquid channel in the bearing mounting assembly 2 is closed, and the cleaning fluid entering the liquid pumping mechanism 3 is compressed and then flows quickly through the gap to be cleaned in the bearing 5, carrying away impurities. The repeated circulation of pumping and pushing drives the cleaning fluid to repeatedly circulate and clean the bearing 5, completing the cleaning operation.

[0041] In this embodiment, the liquid dispensing mechanism 3 includes a pressure shaft cover 32, a cleaning cylinder 31 communicating with the pressure shaft cover 32, a cylinder head 33 slidably disposed in the cleaning cylinder 31, and a drive rod 34 for driving the cylinder head 33 to reciprocate; the inner bottom of the liquid storage cavity 1 is provided with a positioning ring 11, and the pressure shaft cover 32 is positioned and covered on the bearing 5 by the positioning ring 11; the pressure shaft cover 32 can be quickly positioned and assembled by the positioning ring 11 to ensure that the liquid dispensing mechanism 3 and the bearing mounting seat 2 are installed in place; the drive rod 34 is connected to an external power output device to perform the reciprocating motion of the cylinder head 33 in the cleaning cylinder 31, thereby realizing the repeated pumping and pushing of the cleaning liquid.

[0042] In this embodiment, the pressure shaft cover 32 is provided with at least one sealing groove 323 for sealing the upper edge of the outer ring of the bearing 5 and pressing the bearing 5 down onto the bearing mounting assembly 2; the pressure shaft cover 32 has a trumpet-shaped structure, and multiple sealing grooves 323 are provided, which are distributed in multiple layers along the pressure shaft cover 32; the sealing groove 323 includes a first groove top 3231 and a second groove top 3232; the pressure shaft cover 32 adopts a design with built-in multi-layer pressure shaft 323, and adapts to bearings 5 ​​of different sizes through shaft tops of different sizes. In this embodiment, the first groove top 3231 and the second groove top 3232 can adapt to two sizes of bearings 5, ensuring that the upper edge of the outer ring of the bearing 5 can be tightly abutted to achieve a seal.

[0043] In this embodiment, a positioning cover 321 is provided below the pressure shaft cover 32. The inner wall of the positioning cover 321 is provided with a positioning groove 3212 for cooperating with the positioning ring 11. The positioning cover 321 is also provided with a cover liquid passage hole 3211. The positioning cover 321 achieves installation and positioning with the positioning ring 11 through the built-in positioning groove 3212, ensuring that the pressure shaft cover 32 can be installed quickly and accurately. It also communicates with the liquid storage chamber 1 through the cover liquid passage hole 3211. The cover liquid passage hole 3211 can prevent excessive accumulation of cleaning fluid in the pressure shaft cover 32.

[0044] In this embodiment, the drive rod 34 extends out of the cleaning cylinder 31 and connects to the extension handle 341; a clamping handle 311 is provided at the end of the outer wall of the cleaning cylinder 31; the extension handle 341 can realize manual quick liquid extraction and pushing without relying on an external power device; the clamping handle 311 is used to realize the positioning and assembly of the liquid extraction mechanism 3.

[0045] In this embodiment, the bearing mounting assembly 2 includes a top shaft base 21, a top shaft sleeve 22 slidably sleeved on the top shaft base 21, and a top shaft spring 23 mounted on the top shaft base 21. The top shaft spring 23 is used to push the top shaft sleeve 22 so that the bearing 5 mounted on the top shaft sleeve 22 abuts against the sealing groove 323. The top shaft base 21 is provided with a hollow structure communicating with the liquid storage cavity 1. A one-way valve body 4 is installed at the end of the hollow structure. The one-way valve body 4 includes a valve seat 401 connected to the end of the top shaft base 21, a valve stem 402 rotatably mounted on the valve seat 401, and a valve cover 403 installed at the end of the valve stem 402. 3 is used to cover the end of the hollow structure; when the valve cover is opened, the liquid storage cavity 1 is connected to the liquid outlet end of the liquid dispensing mechanism 3; the hollow structure and the one-way valve body 4 constitute the liquid channel; the outer wall of the top shaft sleeve 22 has at least one support platform 221; the support platform 221 is used to support the bottom of the bearing 5; multiple support platforms 221 are distributed in multiple layers along the top shaft sleeve 22; the support platform 221 includes a first support platform 2211 and a second support platform 2212; the top shaft base 21 and the top shaft sleeve 22 are both provided with top shaft liquid passage holes 24 for the flow of cleaning liquid, and the top shaft base 21 is provided with a filter screen 25 for filtering impurities in the cleaning liquid.

[0046] In this embodiment, the top shaft base 21 is fixed inside the base cavity 1, and the top shaft sleeve 22 is slidably mounted on the top shaft base 21 to lift the bearing 5 so that the bearing 5 abuts against the pressure shaft 323 of the pressure shaft cover 32. The top shaft spring 23 provides thrust to the top shaft sleeve 22 to push the bearing 5 upward. A support platform 221 is provided to adapt to bearings 5 ​​of different sizes and dimensions. In this embodiment, a first support platform 2211 and a second support platform 2212 are provided to adapt to the first groove top 3231 and the second groove top 3232, ensuring that the device can adapt to bearings 5 ​​of various types and sizes.

[0047] In this embodiment, the one-way valve body 4 is a gravity valve. When the liquid is pumped, the cleaning liquid in the internal channel of the top shaft base 21 flows upward, pushing up the one-way valve body 4. When the liquid is pushed, the pressure of the cleaning liquid is applied from top to bottom. Gravity, combined with the pressure, achieves the closure of the one-way valve body 4. In addition, the top shaft base 21 is equipped with a filter screen 25, which can effectively filter the cleaning liquid entering the cleaning chamber from the internal channel of the top shaft base 21, ensuring that impurities or other debris after rinsing will not re-enter the cleaning chamber 61, thereby improving cleaning efficiency and quality.

[0048] In this embodiment, the liquid storage cavity 1 further includes a cover 13, which is connected to the outer wall of the cleaning tank 31 and covers the upper edge of the liquid storage cavity 1; the cover 13 is installed with the outer wall of the liquid storage cavity 1 by a latch 7.

[0049] In this embodiment, the latch 7 is a split latch, with one part fixed to the outer wall of the liquid storage cavity 1 and the other part installed on the cover 13. The cover 13 is installed along with the liquid pumping mechanism 3 and is then fitted onto the upper edge of the liquid storage cavity 1 and fixed by the latch 7.

[0050] In this embodiment, a ventilated component 12 is provided on the inner side of the cover 13; the ventilated component 12 includes a splash guard 121 disposed below the cover 13 and a sealing cover 122 disposed between the cover 13 and the splash guard 121; the edge of the splash guard 121 has a ventilated gap 123 with the liquid storage cavity 1, the center of the sealing cover 122 is connected to the outer wall of the cleaning tank 31, and the edge of the sealing cover 122 is sealed and overlapped with the upper edge of the liquid storage cavity 1; a first gap 124 communicating with the ventilated gap 123 is provided between the splash guard 121 and the sealing cover 122; a second gap 125 is provided between the sealing cover 122 and the cover 13; a ventilated return hole 126 communicating with the first gap 124 and the second gap 125 is opened on the sealing cover 122 near the outer wall of the cleaning tank 31; a sealing ventilated groove 131 communicating with the second gap 125 is opened on the edge of the cover 13;

[0051] In this embodiment, the splash guard 121 is placed on the lower layer to prevent the cleaning fluid from splashing upwards, and the air pressure is balanced through the vent gap 123. During the pumping process of the cleaning fluid, the air in the storage cavity 1 enters the first gap 124 through the vent gap 123, flows in the gap between the sealing cover 122 and the splash guard 121, flows to the upper side of the sealing cover 122 through the vent return hole 126, and then flows through the second gap 125 to the sealing cover vent groove 131 to exhaust the outside air. In the pumping state, the cleaning fluid enters the pumping mechanism 3 from the storage cavity 1, and the outside air enters in the opposite direction along the same route. The inclined sealing cover 122 can further help the tiny cleaning fluid droplets in the air to flow back through the vent return hole 126, avoiding the cleaning fluid from being carried out of the storage cavity 1 with the air and contaminating the working environment.

[0052] In this embodiment, a folding foot pedal 8 is provided at the bottom of the outer wall of the liquid storage cavity 1.

[0053] This embodiment also provides a bearing cleaning device for implementing a bearing cleaning method described in the above embodiment. In its specific operation, the cleaning fluid is a cleaning medium used to flush the bearing and the gap between its inner and outer rings. The bearing mounting assembly 2 is used for the installation and positioning of the bearing 5. Once installed, the bearing mounting assembly 2 seals and fixes the bearing 5 to the liquid dispensing mechanism 3. During the cleaning process, the cleaning fluid enters the liquid dispensing mechanism 3 to a specified capacity, and then the dispensing mechanism 3 pushes the cleaning fluid, driving it to flow through the internal gaps of the bearing 5 to be cleaned, thus cleaning the internal gaps and surface of the bearing 5. The overall structure is compact, requires no complex power drive, and can be adapted to diverse power systems. The entire cleaning action can be completed simply by pushing the liquid through the dispensing mechanism, expanding the application scenarios of the device.

[0054] The specific embodiments described herein are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the scope defined by the spirit of the invention.

Claims

1. A bearing cleaning method, characterized in that, Includes the following steps: S1. Install the bearing (5) onto the bearing mounting assembly (2); S2. Cover the liquid dispensing mechanism (3) on the bearing (5) so that the liquid outlet of the liquid dispensing mechanism (3) is sealed with the upper edge of the outer ring of the bearing (5); S3. The liquid injection mechanism (3) injects liquid into the bearing (5), so that the cleaning liquid flows through the gap inside the bearing (5), thereby cleaning the bearing (5). S4. Repeat step S3 above until the bearing (5) reaches the set cleaning standard; After the cleaning fluid flows through the gap inside the bearing (5), the cleaning fluid is recovered using the liquid storage chamber (1); A liquid channel is provided between the liquid storage chamber (1) and the liquid dispensing mechanism (3) to allow the cleaning liquid to flow unidirectionally from the liquid storage chamber (1) to the liquid dispensing mechanism (3); in step S3, before the liquid dispensing mechanism (3) dispenses the cleaning liquid to the bearing (5), the liquid dispensing mechanism (3) extracts the cleaning liquid from the liquid storage chamber (1) through the liquid channel. The liquid dispensing mechanism (3) includes a pressure shaft cover (32), a cleaning cylinder (31) connected to the pressure shaft cover (32), a cylinder head (33) slidably disposed in the cleaning cylinder (31), and a drive rod (34) for driving the cylinder head (33) to reciprocate. The pressure shaft cover (32) is covered by the bearing (5). The bearing mounting assembly (2) includes a top shaft base (21), which has a hollow structure communicating with the liquid storage chamber (1). A one-way valve body (4) is installed at the end of the hollow structure. The one-way valve body (4) includes a valve seat (401) connected to the end of the top shaft base (21), a valve rod (402) rotatably mounted on the valve seat (401), and a valve cover (403) installed at the end of the valve rod (402). The valve cover (403) is used to cover the end of the hollow structure. When the valve cover is opened, the liquid storage chamber (1) is connected to the liquid outlet of the liquid dispensing mechanism (3). The hollow structure and the one-way valve body (4) constitute the liquid channel.

2. The bearing cleaning method according to claim 1, characterized in that, The inner bottom of the liquid storage cavity (1) is provided with a positioning ring (11), and the pressure shaft cover (32) is installed through the positioning ring (11).

3. The bearing cleaning method according to claim 1, characterized in that, The pressure shaft cover (32) is provided with at least one sealing groove (323) for sealing the upper edge of the outer ring of the bearing (5) and pressing the bearing (5) down onto the bearing mounting assembly (2).

4. The bearing cleaning method according to claim 3, characterized in that, The pressure shaft cover (32) has a trumpet-shaped structure, and multiple sealing grooves (323) are provided. The multiple sealing grooves (323) are distributed in multiple layers along the pressure shaft cover (32). The sealing groove (323) includes a first groove top (3231) and a second groove top (3232).

5. A bearing cleaning method according to claim 1, characterized in that, A positioning cover (321) is provided below the pressure shaft cover (32). The inner wall of the positioning cover (321) is provided with a positioning groove (3212) for cooperating with the positioning ring (11). The positioning cover (321) is also provided with a cover liquid passage hole (3211).

6. The bearing cleaning method according to claim 1, characterized in that, The bearing mounting assembly (2) further includes a top shaft sleeve (22) slidably sleeved on the top shaft base (21) and a top shaft spring (23) installed on the top shaft base (21); the top shaft spring (23) is used to push the top shaft sleeve (22) so that the bearing (5) installed on the top shaft sleeve (22) abuts against the sealing groove (323).

7. A bearing cleaning method according to claim 6, characterized in that, The outer wall of the top shaft sleeve (22) has at least one bearing support (221); the bearing support (221) is used to support the bottom of the bearing (5).

8. A bearing cleaning method according to claim 1, characterized in that, The liquid storage cavity (1) also includes a cover (13), which is connected to the outer wall of the cleaning tank (31) and covers the upper edge of the liquid storage cavity (1).

9. A bearing cleaning method according to claim 8, characterized in that, The inner side of the cover (13) is provided with a breathable component (12); the breathable component (12) includes a splash cover (121) disposed below the cover (13) and a sealing cover (122) disposed between the cover (13) and the splash cover (121). The edge of the splash cover (121) has an air gap (123) with the liquid storage cavity (1), and the center of the sealing cover (122) is connected to the outer wall of the cleaning tank (31), and the edge of the sealing cover (122) is sealed and overlapped on the upper edge of the liquid storage cavity (1). A first gap (124) communicating with the vent gap (123) is provided between the splash cover (121) and the sealing cover (122). A second gap (125) is provided between the sealing cap (122) and the cap body (13); A ventilated return hole (126) is opened near the outer wall of the cleaning tank (31) of the sealing cap (122) to connect the first gap (124) and the second gap (125). The cover (13) has a sealing and ventilation groove (131) that communicates with the second gap (125) along its edge.

10. A cleaning device, characterized in that, This is used to implement a bearing cleaning method according to any one of claims 1-9.

Images