Ultra-wear-resistant high-speed washing machine bearing seat with multi-stage damping

Abstract

This invention discloses a multi-stage shock-absorbing, ultra-wear-resistant high-speed washing machine bearing housing, belonging to the technical field of washing machine bearing housings. It includes a bearing housing body, multiple sets of axial buffer mechanisms, and two sets of covers. The bearing housing body is an aluminum casting with a shaft hole. An annular boss is provided on the inner wall of the shaft hole, abutting against a rotating shaft. Multiple sliding grooves are formed on the inner wall of the shaft hole. This invention, by providing multiple sliding grooves within the shaft hole for the axial buffer mechanisms to slide, and sealing the shaft hole with the covers to form a sealed cavity, and by having the axial buffer mechanisms abut against the rotating shaft, effectively dampes the axial or radial forces and vibrations generated by the rotating shaft. The lubricating oil also dampens the movement of the axial buffer mechanisms, thereby giving the washing machine bearing housing a multi-stage shock-absorbing effect and extending the bearing's service life.

Description

Technical Field

[0001] This invention belongs to the technical field of washing machine bearing housings, and particularly relates to an ultra-wear-resistant high-speed washing machine bearing housing with multi-level shock absorption. Background Technology

[0002] Turntable bearing housings are large and extra-large bearing housings with special construction that can accept comprehensive loads. They are characterized by compact construction, sensitive rotation, and convenient installation and maintenance. Where there is a bearing, there must be a support point. The inner support point of the bearing is the shaft, and the outer support is the bearing housing. Bearing housings are widely used in washing machines. The bearing housing is usually connected to the outer drum and provides support for the inner drum. The bearing is installed in the bearing housing, and the rotation shaft of the inner drum is connected to the bearing.

[0003] Chinese Patent (CN202122892324.9) discloses a large bearing housing casting for a washing machine, including a bearing housing body, a shock absorber, a telescopic spring, a first shaft, a second shaft, and a limiting block. The shock absorber is fixedly connected to the bearing housing body and is located on the outside of the bearing housing body. The shock absorber has a mounting groove located inside the shock absorber. The first shaft is fixedly connected to the shock absorber and is located in the mounting groove. The second shaft is slidably connected to the first shaft and fixedly connected to the shock absorber. The limiting block is fixedly connected to the second shaft and is located inside the first shaft. The telescopic spring is fixedly connected to the shock absorber and is located on the outside of the first shaft.

[0004] Chinese Patent (CN202223207299.7) discloses a drum washing machine bearing housing that can prevent shaking, relating to the technical field of washing machine bearing housings. This drum washing machine bearing housing that can prevent shaking includes: a housing body; an elastic washer fixedly installed on the inner wall of the bearing mounting hole of the housing body; at least two shock-absorbing grooves evenly distributed along their circumference are formed on the outer wall of the housing body; a damper is fixedly installed at one end of the shock-absorbing groove away from the bearing mounting hole of the housing body; an elastic washer penetrating the elastic washer is slidably installed at the other end of the shock-absorbing groove; a connecting rod connects the elastic washer and the movable end of the damper; and an elastic reset member for resetting the elastic washer is sleeved on the outside of the connecting rod.

[0005] Currently, when the inner drum of a washing machine is running at high speed, the water and clothes inside are constantly being agitated and tumbled. This causes the bearing to be subjected to radial force and vibration on the rotating shaft. Some of the vibration acting on the rotating shaft is converted into axial force on the bearing, causing the rolling support function of the bearing to fail, greatly reducing the service life of the bearing. It also causes the washing machine to shake violently and make serious abnormal noises. In addition, the washing machine bearings are installed by hammering with an interference fit between the bearing and the bearing housing, which makes the installation of the bearing inconvenient and occasionally the bearing is damaged after being hammered during installation. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned problems by proposing an ultra-wear-resistant high-speed washing machine bearing housing with multi-level shock absorption.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a multi-stage shock-absorbing, ultra-wear-resistant high-speed washing machine bearing housing, comprising a bearing housing body, multiple sets of axial buffer mechanisms, and two sets of covers. The bearing housing body is an aluminum casting, and a shaft hole is formed on the bearing housing body. An annular boss is provided on the inner wall of the shaft hole, and the annular boss abuts against the rotating shaft. Multiple sliding grooves are formed on the inner wall of the shaft hole, and the multiple sliding grooves are arranged in a circular array along the axis of the shaft hole, with both ends of the sliding grooves extending to opposite sides of the bearing housing body. The multiple sets of axial buffer mechanisms are slidably connected in the sliding grooves, and the axial buffer mechanisms abut against the annular boss. The annular boss has multiple sets of axial buffer mechanisms symmetrically arranged on both sides. The multiple sets of axial buffer mechanisms on one side of the annular boss hold the first bearing, and the multiple sets of axial buffer mechanisms on the other side of the annular boss hold the second bearing. The first bearing and the second bearing are sleeved on the rotating shaft. The axial buffer mechanism abuts against the rotating shaft. The cover is sleeved on the rotating shaft and abuts against the axial buffer mechanism. The two covers are respectively fixedly installed on opposite sides of the bearing seat body, and the two covers seal the inside of the shaft hole to form a sealed cavity. Lubricating oil is injected into the shaft hole.

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

[0009] The axial buffer mechanism includes a C-shaped clamp, two first springs, and two hard rubber blocks. The C-shaped clamp is slidably connected in the groove, with its opening facing the rotating shaft. The C-shaped clamp holds the first bearing and / or the second bearing. One of the first springs is connected to the top of the C-shaped clamp and abuts against the cover, while the other first spring is connected to the bottom of the C-shaped clamp and abuts against the annular boss. The two hard rubber blocks are respectively connected to both ends of the C-shaped clamp and abut against the rotating shaft. The two sides of the C-shaped clamp abut against the inner wall of the groove. A radial buffer mechanism is connected to the inner side of the C-shaped clamp. The radial buffer mechanism, together with the C-shaped clamp and the groove, forms a sealed cavity and abuts against the first bearing and / or the second bearing.

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

[0011] The radial buffer mechanism includes an elastic slider and a second spring. The top and bottom walls of the elastic slider are attached to the C-shaped clip. Both sides of the elastic slider abut against the inner wall of the groove. One end of the elastic slider abuts against the first bearing and / or the second bearing. The second spring connects the C-shaped clip and the other end of the elastic slider.

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

[0013] The end of the rigid rubber block is provided with a retaining strip, which is engaged in the annular groove of the rotating shaft.

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

[0015] A sealing layer is provided between the cover and the rotating shaft. The sealing layer includes a sealing base layer, an elastic layer and a Teflon layer. The sealing base layer is bonded to the cover, the elastic layer is bonded to the sealing base layer, and the Teflon layer is coated on the surface of the elastic layer and abuts against the rotating shaft.

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

[0017] The sealing layer is also provided between the annular boss and the rotating shaft.

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

[0019] The C-shaped clip has a positioning groove, and the first spring is inserted into the positioning groove.

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

[0021] The cap has an oil injection hole, and a sealing plug is screwed into the oil injection hole.

[0022] As a further description of the above technical solution:

[0023] A flow guide hole is provided on any of the C-type clips located on the same side of the annular boss.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In this invention, multiple sliding grooves are provided in the shaft hole for the axial buffer mechanism to slide. The cover seals the shaft hole to form a sealed cavity. The axial buffer mechanism abuts against the rotating shaft, so that the axial or radial force and vibration generated by the rotating shaft are reduced and damped. During this process, the axial buffer mechanism abuts against the annular boss, the cover and the rotating shaft, and the axial buffer mechanism locks the first bearing or the second bearing. Thus, the axial force or vibration on the rotating shaft will be completely borne by the axial buffer mechanism, so that there is no misalignment between the first bearing or the second bearing and the rotating shaft. The lubricating oil also has a damping effect on the movement of the axial buffer mechanism, so that the washing machine bearing seat has a multi-stage shock absorption effect and extends the service life of the bearing.

[0026] 2. In this invention, the C-shaped clamp is supported by two first springs to alleviate the force and vibration on the rotating shaft. Since the C-shaped clamp is clamped on the first or second bearing, the first and second bearings move synchronously with the C-shaped clamp. The C-shaped clamp also moves a small distance of dislocation together with the rotating shaft, so that the rotating shaft and the first and second bearings always keep moving synchronously, thereby protecting the first and second bearings, preventing them from being damaged during movement and vibration, and extending the service life of the bearings.

[0027] 3. In this invention, when the washing machine is running and the rotating shaft rotates, if the rotating shaft is affected by vibration, the rotating shaft, the first bearing, and the second bearing will exert a radial force and amplify the vibration. Since the elastic slider contacts the first bearing or the second bearing, the elastic slider is subjected to force and slides along the C-shaped clip. At this time, the second spring is compressed, and the elastic slider acts as a piston in the sealed cavity. Therefore, under the elastic buffering effect of the gas buffer and the second spring, the radial force and vibration are reduced. Correspondingly, the hard rubber block also has a mitigating effect on the radial force and vibration of the rotating shaft. Similarly, since the C-shaped clip is also arranged in a ring array along the axis of the shaft hole, the force and vibration in different directions will be reduced, ensuring the smooth movement of the bearing and the rotating shaft and extending the service life of the bearing.

[0028] 4. In this invention, multiple sets of axial buffer mechanisms can be snapped onto the first or second bearing, then the multiple sets of axial buffer mechanisms can be aligned with the slide groove and snapped in, and the cover can be installed on the bearing housing body to complete the bearing installation. This makes the bearing installation operation convenient and avoids damage to the bearing during the installation process. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a high-speed washing machine bearing housing with multi-level shock absorption and ultra-wear-resistant properties.

[0030] Figure 2This is a schematic diagram of the internal structure of a bearing housing for an ultra-wear-resistant high-speed washing machine with multi-level shock absorption.

[0031] Figure 3 A cross-sectional view of a high-speed washing machine bearing housing with multi-stage shock absorption and ultra-wear-resistant properties. Figure 1 .

[0032] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0033] Figure 5 for Figure 4 A magnified view of part B in the middle section.

[0034] Figure 6 for Figure 4 A magnified view of part C in the middle.

[0035] Figure 7 A cross-sectional view of a high-speed washing machine bearing housing with multi-stage shock absorption and ultra-wear-resistant properties. Figure 2 .

[0036] Figure 8 for Figure 7 A magnified view of part D in the middle.

[0037] Legend:

[0038] 1. Bearing housing body; 2. Axial buffer mechanism; 21. C-type clamp; 22. First spring; 23. Hard rubber block; 3. Cover; 4. Shaft hole; 5. Annular boss; 6. Rotating shaft; 7. Slide groove; 8. First bearing; 9. Second bearing; 10. Radial buffer mechanism; 101. Elastic slider; 102. Second spring; 11. Clamping strip; 12. Annular groove; 13. Sealing layer; 131. Sealing base layer; 132. Elastic layer; 133. Teflon layer; 14. Positioning groove; 15. Oil injection hole; 16. Sealing plug; 17. Guide hole. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of this invention, it should be noted that the terms "upper," "inner," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Please see Figure 1-8This invention provides a technical solution: a multi-stage shock-absorbing, ultra-wear-resistant high-speed washing machine bearing housing, comprising a bearing housing body 1, multiple sets of axial buffer mechanisms 2, and two sets of covers 3. The bearing housing body 1 is an aluminum casting, and a shaft hole 4 is formed on the bearing housing body 1. An annular boss 5 is provided on the inner wall of the shaft hole 4, and the annular boss 5 abuts against a rotating shaft 6. Multiple sliding grooves 7 are formed on the inner wall of the shaft hole 4, and the multiple sliding grooves 7 are arranged in a circular array along the axis of the shaft hole 4, with both ends of the sliding grooves 7 extending to opposite sides of the bearing housing body 1. The multiple sets of axial buffer mechanisms 2 are slidably connected in the sliding grooves 7, and the axial buffer mechanisms 2 abut against the annular boss 5, located at the... The multiple sets of axial buffer mechanisms 2 on both sides of the annular boss 5 are arranged symmetrically. The multiple sets of axial buffer mechanisms 2 on one side of the annular boss 5 lock the first bearing 8, and the multiple sets of axial buffer mechanisms 2 on the other side of the annular boss 5 lock the second bearing 9. The first bearing 8 and the second bearing 9 are sleeved on the rotating shaft 6. The axial buffer mechanism 2 abuts against the rotating shaft 6. The cover 3 is sleeved on the rotating shaft 6 and abuts against the axial buffer mechanism 2. The two covers 3 are respectively fixedly installed on opposite sides of the bearing seat body 1, and the two covers 3 seal the inside of the shaft hole 4 to form a sealed cavity. Lubricating oil is injected into the shaft hole 4.

[0041] The axial buffer mechanism 2 includes a C-shaped clamp 21, two first springs 22, and two hard rubber blocks 23. The C-shaped clamp 21 is slidably connected within the slide groove 7, with its opening facing the rotating shaft 6. The C-shaped clamp 21 holds the first bearing 8 and / or the second bearing 9. One of the first springs 22 is connected to the top of the C-shaped clamp 21 and abuts against the cover 3, while the other first spring 22 is connected to the bottom of the C-shaped clamp 21 and abuts against the annular boss 5. The two hard rubber blocks 23 are respectively connected to both ends of the C-shaped clamp 21 and abut against the rotating shaft 6. The two sides of the C-shaped clamp 21 abut against the inner wall of the slide groove 7. A radial buffer mechanism 10 is connected to the inner side of the C-shaped clamp 21. The radial buffer mechanism 10, together with the C-shaped clamp 21 and the slide groove 7, forms a sealed cavity. The rigid rubber block 23 abuts against the first bearing 8 and / or the second bearing 9; the end of the rigid rubber block 23 is provided with a retaining strip 11, which is inserted into the annular groove 12 of the rotating shaft 6 to facilitate the connection between the rigid rubber block 23 and the rotating shaft 6, so that the axial force and vibration of the rotating shaft 6 can be well transmitted to the C-shaped retaining piece 21 through the rigid rubber block 23. The C-shaped retaining piece 21 is supported by two first springs 22 to alleviate the force and vibration of the rotating shaft 6. Since the C-shaped retaining piece 21 is inserted into the first bearing 8 or the second bearing 9, the first bearing 8 and the second bearing 9 move synchronously with the C-shaped retaining piece 21. The C-shaped retaining piece 21 also moves a small distance of dislocation together with the rotating shaft 6, so that the rotating shaft 6 always keeps the first bearing 8 and the second bearing 9 moving synchronously, thereby protecting the first bearing 8 and the second bearing 9 from damage during movement and vibration, and extending the service life of the bearings;

[0042] The radial buffer mechanism 10 includes an elastic slider 101 and a second spring 102. The top and bottom walls of the elastic slider 101 are attached to the C-shaped clip 21, and both sides of the elastic slider 101 abut against the inner wall of the slide groove 7. One end of the elastic slider 101 abuts against the first bearing 8 and / or the second bearing 9. The second spring 102 connects the C-shaped clip 21 and the other end of the elastic slider 101. When the washing machine is running, the rotating shaft 6 rotates. If the rotating shaft 6 is affected by vibration at this time, the rotating shaft 6, the first bearing 8, and the second bearing 9 will exert a radial force and amplify the vibration. Because the elastic slider 101 is attached to the C-shaped clip 21, the second spring 102 will abut against the C-shaped clip 21 and the second spring 102. When the first bearing 8 or the second bearing 9 is touched, the elastic slider 101 is subjected to force and slides along the C-shaped clip 21. At this time, the second spring 102 is compressed, and the elastic slider 101 acts as a piston in the sealed cavity. Therefore, under the gas buffer and the elastic buffer of the second spring 102, the radial force and vibration are reduced. Correspondingly, the hard rubber block 23 also has a mitigating effect on the radial force and vibration of the rotating shaft 6. Similarly, since the C-shaped clip 21 is also arranged in a ring array along the axis of the shaft hole 4, the force and vibration in different directions will be reduced, ensuring the smooth movement of the bearing and the rotating shaft 6 and extending the service life of the bearing.

[0043] A sealing layer 13 is provided between the cover 3 and the rotating shaft 6. The sealing layer 13 includes a sealing base layer 131, an elastic layer 132, and a Teflon layer 133. The sealing base layer 131 is bonded to the cover 3, the elastic layer 132 is bonded to the sealing base layer 131, and the Teflon layer 133 is coated on the surface of the elastic layer 132. The Teflon layer 133 abuts against the rotating shaft 6. The elastic layer 132 can deform to a certain extent in the radial direction of the rotating shaft 6, thus adapting to the slight radial movement of the rotating shaft 6 and providing elastic support for the rotating shaft 6, thereby achieving a shock absorption effect. The Teflon layer 133 is made of Teflon material, which has good wear resistance and non-stick properties, thus adapting to the slight axial movement of the rotating shaft 6.

[0044] The sealing layer 13 is also provided between the annular boss 5 and the rotating shaft 6;

[0045] The C-shaped clip 21 has a positioning groove 14, and the first spring 22 is inserted into the positioning groove 14 to facilitate the stable installation of the first spring 22.

[0046] The cover 3 is provided with an oil injection hole 15, and a sealing plug 16 is screwed into the oil injection hole 15 to facilitate the filling or extraction of lubricating oil in the shaft hole 4 before or after the first bearing 8 or the second bearing 9 is installed.

[0047] A guide hole 17 is provided on any of the C-type clips 21 located on the same side of the annular boss 5 for the flow of lubricating oil in the shaft hole 4.

[0048] Working principle: First, when assembling the bearing and rotating shaft 6 of the washing machine bearing housing, each radial buffer mechanism 10 is assembled in each axial buffer mechanism 2, that is, the elastic slider 101 is inserted into the C-shaped clip 21, the top and bottom walls of the elastic slider 101 are in contact with the C-shaped clip 21, the second spring 102 connects the other end of the C-shaped clip 21 and the elastic slider 101, the first spring 22 is aligned with the positioning groove 14 and inserted, the C-shaped clips 21 in the multiple sets of axial buffer mechanisms 2 are clipped onto the first bearing 8, the position of the C-shaped clips 21 is adjusted, the multiple C-shaped clips 21 are aligned with the multiple sliding grooves 7 and clipped in, both sides of the elastic slider 101 abut against the inner wall of the sliding groove 7. Similarly, the second bearing 9 is installed, and then the two covers 3 are installed on the bearing housing body 1. The cover 3 and the annular boss 5 respectively abut against the two first springs 22 on the axial buffer mechanism 2. The rotating shaft 6 is inserted from one side of the cover 3 and passes through the other side of the cover 3. The retaining strip 11 on the hard rubber block 23 is inserted into the annular groove 12 on the rotating shaft 6. The sealing layer 13 on the cover 3 and the sealing layer 13 on the annular boss 5 are attached to the rotating shaft 6. The sealing plug 16 is unscrewed, and lubricating oil is injected into the oil injection hole 15. The lubricating oil flows from the guide hole 17 on one of the C-shaped clips 21 to various positions in the shaft hole 4. After the lubricating oil fills the shaft hole 4, the sealing plug 16 is screwed on. Next, the bearing seat is installed as a whole on the washing machine. The rotating shaft 6 is connected to the inner drum of the washing machine. When the washing machine is running, the rotating shaft 6 rotates. If the rotating shaft 6 is affected by vibration at this time, then the rotating shaft 6 will rotate. The rotating shaft 6, the first bearing 8, and the second bearing 9 will exert a radial force and amplify the vibration. Since the elastic slider 101 contacts the first bearing 8 or the second bearing 9, the elastic slider 101 is subjected to a force and slides along the C-shaped clip 21. At this time, the second spring 102 is compressed, and the elastic slider 101 acts as a piston within the sealed cavity. Therefore, under the buffering effect of the gas and the elastic buffering effect of the second spring 102, the radial force and vibration are reduced. Correspondingly, the hard rubber block 23 also has a mitigating effect on the radial force and vibration of the rotating shaft 6. Similarly, since the C-shaped clip 21 is also arranged in a circular array along the axis of the shaft hole 4, the force and vibration in different directions will be reduced. The elastic layer 132 can mitigate the radial force and vibration of the rotating shaft 6. The upward deformation allows for slight radial movement of the rotating shaft 6, providing elastic support and damping. Finally, the axial force and vibration experienced by the rotating shaft 6 are effectively transmitted to the C-shaped clamp 21 via the hard rubber block 23. The C-shaped clamp 21, supported by two first springs 22, further mitigates the force and vibration on the rotating shaft 6. Since the C-shaped clamp 21 is engaged with either the first bearing 8 or the second bearing 9, the first bearing 8 and the second bearing 9 move synchronously with the C-shaped clamp 21. The C-shaped clamp 21 also undergoes a small dislocation movement with the rotating shaft 6, ensuring that the rotating shaft 6 maintains synchronous movement with the first bearing 8 and the second bearing 9, thus protecting the first bearing 8 and the second bearing 9.The Teflon layer 133 is made of Teflon, which has excellent wear resistance and non-stick properties. Therefore, it can accommodate the minute axial movements of the rotating shaft 6, preventing damage during movement and vibration, and extending the bearing's service life.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A super wear resistant high speed washing machine bearing housing with multi-stage shock absorption, characterized in that: The bearing housing includes a bearing housing body (1), multiple sets of axial buffer mechanisms (2), and two sets of covers (3). The bearing housing body (1) is an aluminum casting. A shaft hole (4) is provided on the bearing housing body (1). An annular boss (5) is provided on the inner wall of the shaft hole (4). The annular boss (5) abuts against the rotating shaft (6). Multiple sliding grooves (7) are provided on the inner wall of the shaft hole (4). The multiple sliding grooves (7) are arranged in a ring array along the axis of the shaft hole (4), and the two ends of the sliding grooves (7) extend to the opposite sides of the bearing housing body (1). The multiple sets of axial buffer mechanisms (2) are slidably connected in the sliding grooves (7), and the axial buffer mechanisms (2) abut against the annular boss (5). The multiple sets of axial buffer mechanisms located on both sides of the annular boss (5) are... The mechanisms (2) are arranged symmetrically. Multiple sets of axial buffer mechanisms (2) located on one side of the annular boss (5) hold the first bearing (8), and multiple sets of axial buffer mechanisms (2) located on the other side of the annular boss (5) hold the second bearing (9). The first bearing (8) and the second bearing (9) are sleeved on the rotating shaft (6). The axial buffer mechanism (2) abuts against the rotating shaft (6). The cover (3) is sleeved on the rotating shaft (6) and abuts against the axial buffer mechanism (2). The two covers (3) are respectively fixedly installed on opposite sides of the bearing seat body (1), and the two covers (3) seal the inside of the shaft hole (4) to form a sealed cavity. Lubricating oil is injected into the shaft hole (4). The axial buffer mechanism (2) includes a C-shaped clip (21), two first springs (22), and two hard rubber blocks (23). The C-shaped clip (21) is slidably connected in the slide groove (7). The opening of the C-shaped clip (21) faces the rotating shaft (6). The C-shaped clip (21) locks the first bearing (8) and / or the second bearing (9). One of the first springs (22) is connected to the top of the C-shaped clip (21) and abuts against the cover (3). The other first spring (22) is connected to the bottom of the C-shaped clip (21). And abut against the annular boss (5), the two hard rubber blocks (23) are respectively connected to the two ends of the C-shaped clip (21), and the hard rubber blocks (23) abut against the rotating shaft (6), the two sides of the C-shaped clip (21) abut against the inner wall of the slide groove (7), the inner side of the C-shaped clip (21) is connected to a radial buffer mechanism (10), the radial buffer mechanism (10) together with the C-shaped clip (21) and the slide groove (7) form a sealed cavity, and the radial buffer mechanism (10) abuts against the first bearing (8) and / or the second bearing (9); The radial buffer mechanism (10) includes an elastic slider (101) and a second spring (102). The top and bottom walls of the elastic slider (101) are attached to the C-shaped clip (21). Both sides of the elastic slider (101) abut against the inner wall of the slide groove (7). One end of the elastic slider (101) abuts against the first bearing (8) and / or the second bearing (9). The second spring (102) connects the C-shaped clip (21) and the other end of the elastic slider (101).

2. A super wear resistant high speed washing machine bearing housing with multi-stage shock absorption according to claim 1, characterized in that, The end of the hard rubber block (23) is provided with a retaining strip (11), which is inserted into the annular groove (12) of the rotating shaft (6).

3. A super wear resistant high speed washing machine bearing housing with multi-stage shock absorption according to claim 2, characterized in that, A sealing layer (13) is provided between the cover (3) and the rotating shaft (6). The sealing layer (13) includes a sealing base layer (131), an elastic layer (132) and a Teflon layer (133). The sealing base layer (131) is bonded to the cover (3), the elastic layer (132) is bonded to the sealing base layer (131), and the Teflon layer (133) is coated on the surface of the elastic layer (132). The Teflon layer (133) abuts against the rotating shaft (6).

4. A super wear resistant high speed washing machine bearing housing with multi-stage shock absorption according to claim 3, characterized in that, The sealing layer (13) is also provided between the annular boss (5) and the rotating shaft (6).

5. A super wear resistant high speed washing machine bearing housing with multi-stage shock absorption according to claim 4, characterized in that, The C-type clip (21) has a positioning groove (14), and the first spring (22) is inserted into the positioning groove (14).

6. A high-speed washing machine bearing housing with multi-stage shock absorption as described in claim 5, characterized in that, The cover (3) has an oil injection hole (15), and a sealing plug (16) is screwed into the oil injection hole (15).

7. A high-speed washing machine bearing housing with multi-stage shock absorption as described in claim 6, characterized in that, A guide hole (17) is provided on any of the C-type clips (21) located on the same side of the annular boss (5).

Images