A spindle bearing structure that is easy to clean

Abstract

The present invention discloses a spindle bearing structure that is easy to clean, comprising a bearing mechanism, including a bearing seat, an end cover located outside the bearing seat, a retaining ring located outside the end cover, an observation piece located outside the retaining ring, a push plate located outside the observation piece, a rotating ring located outside the retaining ring, and a positioning piece located outside the rotating ring. The present invention facilitates the installation and removal of the retaining ring through the coordinated arrangement between the retaining ring, the observation piece, the push plate, and the rotating ring. Without removing the retaining ring, the internal condition of the mechanism can be observed. The user can then determine whether cleaning is required based on the observed specific condition, thereby avoiding waste of manpower and physical effort. At the same time, the retaining ring removal and observation steps are the same, matching the user's daily operating habits and optimizing the user's experience.

Description

Technical Field

[0001] The invention relates to the field of main shaft equipment of a generator set, and in particular to a main shaft bearing structure that is easy to clean. Background Art

[0002] Due to the long operation time of the main shaft equipment of the wind turbine generator set, the grease in the bearing cavity has deteriorated or the grease has separated. If the grease is not cleaned in time, it will lead to poor lubrication of the main shaft bearing rollers, thereby increasing the wear of the raceway and the retaining frame, which will directly affect the life of the large components of the wind turbine main shaft. In severe cases, it will also cause the main shaft to burn out, bringing a large economic loss risk to the wind power equipment operator. It is necessary to effectively clean and maintain the grease deterioration problem of the main shaft bearing and the iron filings generated by the wear in the bearing. At present, when cleaning the main shaft bearing, it is necessary to remove the flange nuts on the surface of the end cover in turn before checking the internal grease condition and then determine whether it needs to be cleaned. The main shaft bearing end cover is inconvenient to disassemble, which affects the cleaning and maintenance efficiency of the bearing. At the same time, if the grease does not need to be replaced and cleaned during detection, unnecessary manpower waste is generated. For this reason, a main shaft bearing structure that is easy to clean is proposed. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the invention.

[0004] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the present invention aims to solve the technical problem that the existing main shaft bearings are inconvenient to disassemble and maintain.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a spindle bearing structure that is easy to clean, comprising a bearing mechanism, including a bearing seat, an end cover located outside the bearing seat, a retaining ring located outside the end cover, an observation piece located outside the retaining ring, a push plate located outside the observation piece, a rotating ring located outside the retaining ring, and a positioning piece located outside the rotating ring.

[0007] As a preferred embodiment of the spindle bearing structure that is easy to clean according to the present invention, the end cover includes an outer ring, an inner ring is provided on the inner side of the outer ring, a connecting plate is provided on the outer side of the inner ring, and the outer ring and the inner ring are connected via the connecting plate;

[0008] The inner edge of the outer ring is provided with a positioning opening;

[0009] A limiting groove is provided on the periphery of the inner ring.

[0010] As a preferred solution of the spindle bearing structure that is easy to clean according to the present invention, threaded holes are provided on the surfaces of the bearing seat and the end cover, and the bearing seat and the end cover are matched with each other.

[0011] As a preferred solution of the spindle bearing structure easy to clean of the present invention, wherein: a limit block is provided on the inner edge of the retaining ring, and the limit block and the limit groove are matched;

[0012] A push column is also provided on the outer side of the retaining ring.

[0013] As a preferred embodiment of the spindle bearing structure that is easy to clean according to the present invention, the observation member includes a sealing plate, a pin rod is inserted into one end of the sealing plate, a push plate is provided on the outer side of the pin rod, a guide groove is provided on the surface of the push plate, and a slider is provided inside the guide groove;

[0014] The push plate includes an inclined plate, a guide block is provided on the outer side of the inclined plate, and a sliding groove is provided on the outer side of the retaining ring to cooperate with the guide block;

[0015] A rotating groove is provided on the inner side of the rotating ring, and an engaging groove is provided on the inner side of the rotating ring away from the rotating groove;

[0016] The positioning member comprises a spring, and a clamping plate is provided at the front end of the spring.

[0017] As a preferred solution of the spindle bearing structure easy to clean of the present invention, wherein: the inclined plate and the fitting groove are both wedge-shaped, and the inclined plate and the fitting groove cooperate with each other;

[0018] The inner side of the inclined plate is fixed to the sliding block.

[0019] As a preferred solution of the spindle bearing structure that is easy to clean according to the present invention, the slider and the guide groove are in sliding fit, and the guide groove is arranged in a quarter elliptical arc shape.

[0020] As a preferred solution of the spindle bearing structure easy to clean described in the present invention, the push column is movably embedded in the interior of the rotating groove, and the rotating groove is formed by connecting two inclined straight grooves.

[0021] As a preferred solution of the spindle bearing structure that is easy to clean according to the present invention, the rotating ring and the push column form a linkage structure through the rotating groove.

[0022] As a preferred solution of the spindle bearing structure easy to clean of the present invention, wherein: the bottom end of the clamping plate is hinged to the rotating ring, and the clamping plate and the rotating ring form an elastic rotating structure through a spring;

[0023] The clamping plate and the positioning opening are in a snap-fitting arrangement.

[0024] The beneficial effects of the present invention are as follows: through the coordinated arrangement between the observation member, the push plate and the rotating ring, the purpose of detecting the grease status inside the bearing mechanism can be achieved without removing the retaining ring, and then the need for cleaning can be determined based on the grease status, thereby avoiding the embarrassing situation that the inside of the bearing seat does not need to be cleaned after the end cover is removed, thereby reducing waste of manpower;

[0025] At the same time, through the rotational coordination between the rotating ring and the retaining ring, the observation piece can be opened and closed synchronously, and the retaining ring can be disassembled by further rotating the rotating ring, which meets the user's operational needs in actual work and improves the cleaning and maintenance efficiency of the bearing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0027] Figure 1 A schematic diagram of the overall structure of a spindle bearing structure that is easy to clean according to an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of an exploded structure of a spindle bearing structure that is easy to clean according to an embodiment of the present invention;

[0029] Figure 3 A schematic structural diagram of a rotating groove in a spindle bearing structure that is easy to clean according to an embodiment of the present invention;

[0030] Figure 4 A main shaft bearing structure that is easy to clean according to an embodiment of the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0031] Figure 5 Schematic diagram of the connection structure between the positioning member and the end cover in the spindle bearing structure that is easy to clean according to an embodiment of the present invention

[0032] Figure 6 A schematic diagram of the structure of an observation member in an open state in a spindle bearing structure that is easy to clean according to an embodiment of the present invention;

[0033] Figure 7 A schematic structural diagram of an observation member in a spindle bearing structure that is easy to clean according to an embodiment of the present invention;

[0034] Figure 8 A three-dimensional cross-sectional view of a spindle bearing structure that is easy to clean according to an embodiment of the present invention;

[0035] Figure 9 A main shaft bearing structure that is easy to clean according to an embodiment of the present invention Figure 8 Enlarged structural diagram at point B in the middle. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, these schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0039] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] Example 1

[0041] Reference Figure 1 and 2 , this embodiment provides a spindle bearing structure that is easy to clean.

[0042] The spindle bearing structure that is easy to clean includes a bearing mechanism 100 .

[0043] Specifically, the bearing mechanism 100 includes a bearing seat 101 arranged in an annular shape, and a detachable end cover 102 is mounted on one side surface of the bearing seat 101 , and an annular retaining ring 103 is embedded in the concave portion of the middle portion of the end cover 102 .

[0044] Furthermore, threaded holes are provided on the surfaces of the bearing seat 101 and the end cover 102. Users can assemble the bearing seat 101 and the end cover 102 through the threaded holes by screw assembly to seal the bearing inside the bearing seat 101 and ensure the normal and safe use of the spindle bearing.

[0045] At the same time, the end cover 102 is composed of an outer ring 102a, an inner ring 102b and a connecting plate 102c. The inner ring 102b is arranged on the inner side of the outer ring 102a, and the connecting plate 102c is arranged on the outer side of the inner ring 102b. The outer ring 102a and the inner ring 102b are connected by the connecting plate 102c. The end cover 102 and the retaining ring 103 are matched and installed to achieve complete closure of one side of the bearing seat 101.

[0046] Example 2

[0047] Reference Figure 1-5 , which is the second embodiment of the present invention, is based on the previous embodiment and differs from the previous embodiment in that:

[0048] The bearing mechanism 100 further includes a rotating ring 106 movably disposed outside the retaining ring 103 and a positioning member 107 located outside the rotating ring 106 .

[0049] Specifically, a ridge is provided on the outer side of the rotating ring 106, so that the rotating ring 106 is movably embedded in the inner side of the outer ring 102a through the ridge, that is, the rotating ring 106 can only rotate in the radial direction, while preventing the rotating ring 106 from moving horizontally in its own axial direction. At the same time, a rotating groove 106a is left on the inner side of the rotating ring 106. The rotating groove 106a is arranged in an inclined U-shape, that is, it is formed by connecting the bottom ends of two inclined straight grooves, and the top end of the rotating groove 106a passes through to the upper surface of the rotating ring 106;

[0050] At the same time, a gap is left on the outside of the rotating ring 106 for the positioning member 107 to move. The positioning member 107 is placed in the gap on the outside of the rotating ring 106. The positioning member 107 includes a spring 107a fixed to the inner wall of the gap on the outside of the rotating ring 106. At the same time, the front end of the spring 107a is fixedly connected to the clamping plate 107b, and the bottom end of the clamping plate 107b is hinged to the gap.

[0051] Furthermore, a positioning port 102a-1 is provided on the inner edge of the outer ring 102a, and the positioning port 102a-1 can be engaged with the clamping plate 107b. When the end cover 102 and the retaining ring 103 are assembled, the clamping plate 107b can be rotated and popped out to the inside of the positioning port 102a-1 under the elastic force of the spring 107a and engaged with it, so as to achieve rotation restriction of the rotating ring 106.

[0052] The outer periphery of the inner ring 102b is also provided with a number of limit grooves 102b-1 in a circular array. At the same time, the inner edge of the retaining ring 103 is correspondingly provided with the same number of limit blocks 103a, and the shapes and sizes of the limit blocks 103a and the limit grooves 102b-1 are matched with each other. When the retaining ring 103 is placed, the limit blocks 103a and the limit grooves 102b-1 are placed correspondingly between each other, so that the retaining ring 103 can be limited in the radial direction to prevent the retaining ring 103 from rotating and affecting its subsequent normal use.

[0053] Furthermore, a push post 103 b is further provided on the outer side of the retaining ring 103 . The push post 103 b is movably embedded in the interior of the rotating groove 106 a , and the push post 103 b can be slidably engaged with the rotating groove 106 a .

[0054] When the retaining ring 103 and the end cover 102 are placed together, the push post 103b is placed correspondingly on the upper part of the left notch of the rotating groove 106a. As the retaining ring 103 moves downward, the push post 103b can act on the inclined inner wall of the rotating groove 106a, thereby driving the rotating ring 106 to rotate clockwise through the rotating groove 106a, so that the rotating ring 106 can be linked with the retaining ring 103. When the push post 103b moves down to the bottom of the rotating groove 106a, the assembly between the retaining ring 103 and the end cover 102 is completed.

[0055] At the same time, the clamping plate 107b gradually rotates to the positioning hole 102a-1 as the rotating ring 106 rotates. Then, the clamping plate 107b can be rotated into the positioning hole 102a-1 under the elastic force of the spring 107a. Then, the clamping plate 107b and the positioning hole 102a-1 are engaged with each other to achieve the positioning of the rotating ring 106. Then, the engagement between the rotating groove 106a and the push column 103b can also achieve the position limiting of the retaining ring 103, so that the rotating ring 106 and the retaining ring 103 are simultaneously in a static locked state, ensuring the stability of the bearing mechanism 100 as a whole.

[0056] The user can then clean and maintain the bearing inside the bearing mechanism 101 and replace the lubricating oil. By coordinating the retaining ring 103, the rotating ring 106 and the positioning member 107, the retaining ring 103 and the end cover 102 can be quickly disassembled and assembled. Compared with the traditional method of disassembling by removing the flange nuts one by one, it saves time and effort, and improves the cleaning and maintenance efficiency of the internal bearing of the main shaft by the user.

[0057] Example 3

[0058] Reference Figure 1-9 , which is the third embodiment of the present invention, is based on the previous embodiment and differs from the previous embodiment in that:

[0059] The bearing mechanism 100 further includes an observation piece 104 located on the surface of the retaining ring 103 , and a push plate 105 is connected to the outer side of the observation piece 104 .

[0060] Specifically, an observation port is provided on the surface of the retaining ring 103, through which the user can check the grease condition inside the bearing seat 101. At the same time, an observation piece 104 is provided on the upper part of the observation port. The observation piece 104 includes a sealing plate 104a for sealing the retaining ring 103, and a pin rod 104b is passed through one end of the sealing plate 104a. The sealing plate 104a can rotate around the axis of the pin rod 104b. At the same time, the outer end of the pin rod 104b is coaxially fixedly connected to a push plate 104c, and a guide groove 104d arranged in a quarter elliptical arc shape is opened on the surface of the push plate 104c. At the same time, a slider 104e is movably embedded in the guide groove 104d.

[0061] The push plate 105 includes a wedge-shaped inclined plate 105a, the inner side of the inclined plate 105a is fixed to the slider 104e, and a guide block 105b is integrally provided on the contact surface of the inclined plate 105a and the retaining ring 103. At the same time, a sliding groove 105c that cooperates with the guide block 105b is also provided on the outer side of the retaining ring 103. Through the sliding cooperation between the guide block 105b and the sliding groove 105c, while ensuring that the inclined plate 105a is always coordinated and connected with the retaining ring 103, the sliding distance and sliding direction of the inclined plate 105a can be limited, so that the slider 104e can smoothly cooperate with the guide groove 104d under the drive of the inclined plate 105a.

[0062] Furthermore, an interlocking groove 106b is provided on the inner side of the rotating ring 106 away from the rotating groove 106a. At the same time, the interlocking groove 106b and the inclined plate 105a are both wedge-shaped, and the two cooperate with each other. Through the interlocking cooperation between the inclined plate 105a and the interlocking groove 106b, and the vertical edges of the interlocking groove 106a and the inclined plate 105a are both on the clockwise side, when the rotating ring 106 rotates counterclockwise, the inclined plate 105a can be pushed by the interlocking groove 106b to rotate counterclockwise synchronously, thereby achieving the purpose of driving the slider 104e to move.

[0063] When the inclined plate 105a rotates counterclockwise with the rotating ring 106, the slider 104e can slide with the guide groove 104d and push the guide groove 104d to flip around the axis of the pin rod 104b through its own horizontal movement. The slider 104e can still slide along the guide groove 104d to achieve position change. By flipping the guide groove 104d, the sealing plate 104a can be rotated counterclockwise to open, which is convenient for the user to observe the grease condition inside the bearing seat and then decide whether to replace it.

[0064] During specific use, when the user needs to check and clean the grease inside the bearing mechanism 100, he can first bend the card plate 107b back inward to release the rotation restriction of the rotating ring 106, and then the user can rotate the rotating ring 106 counterclockwise, so that the inclined plate 105a rotates synchronously counterclockwise under the push of the fitting groove 106b. At this time, the push column 103b moves synchronously in the horizontal section of the rotating groove 106a. As the inclined plate 105a moves, the slider 104e fixed on its inner side wall can push the guide groove 104d to flip, so that the sealing plate 104a can be rotated around the pin rod 104b to open. At this time, the observation port on the surface of the retaining ring 103 is exposed, and the user can directly judge whether the lubricating grease needs to be replaced and whether the inside of the bearing mechanism 100 needs to be cleaned through the observation port. After the sealing plate 104a is rotated open, the push column 103b moves to the rotating groove At the bottom of the inclined straight groove on the right side of 106a, if grease needs to be replaced, the user can continue to rotate the rotating ring 106 counterclockwise. At this time, the push column 103b can gradually move upward under the push of the inclined inner wall of the rotating groove 106a, thereby driving the retaining ring 103 to be ejected. After removing the retaining ring 103, the interior of the bearing mechanism 100 is in a naked state, and the grease inside can be replaced and cleaned. Through the coordination between the retaining ring 103, the observation part 104, the push plate 105 and the rotating ring 106, while facilitating the loading and unloading of the retaining ring 103, the internal condition of the mechanism can be observed without removing the retaining ring 103. The user can then determine whether cleaning is needed based on the specific conditions observed, thereby avoiding waste of manpower and physics. At the same time, the retaining ring removal and observation steps are the same, which matches the user's daily operating habits and optimizes the user's usage experience.

[0065] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0066] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0067] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A spindle bearing structure that is easy to clean, characterized by: include, A bearing mechanism (100) comprises a bearing seat (101), an end cover (102) located outside the bearing seat (101), a retaining ring (103) located outside the end cover (102), an observation piece (104) located outside the retaining ring (103), a push plate (105) located outside the observation piece (104), a rotating ring (106) located outside the retaining ring (103), and a positioning piece (107) located outside the rotating ring (106); The end cover (102) includes an outer ring (102a), an inner ring (102b) is provided on the inner side of the outer ring (102a), a connecting plate (102c) is provided on the outer side of the inner ring (102b), and the outer ring (102a) and the inner ring (102b) are connected via the connecting plate (102c); The inner edge of the outer ring (102a) is provided with a positioning opening (102a-1); A limiting groove (102b-1) is provided on the periphery of the inner ring (102b); A limiting block (103a) is provided on the inner edge of the retaining ring (103), and the limiting block (103a) and the limiting groove (102b-1) are matched with each other; A push column (103b) is also provided on the outside of the retaining ring (103); A rotation groove (106a) is provided on the inner side of the rotation ring (106); The positioning member (107) includes a spring (107a), and a clamping plate (107b) is provided at the front end of the spring (107a); The push column (103b) is movably embedded in the interior of the rotation groove (106a), and the rotation groove (106a) is formed by connecting two inclined straight grooves; The rotating ring (106) and the push column (103b) form a linkage structure through the rotating groove (106a); The bottom end of the clamping plate (107b) is hinged to the rotating ring (106), and the clamping plate (107b) and the rotating ring (106) form an elastic rotating structure through a spring (107a); The clamping plate (107b) and the positioning opening (102a-1) are in a clamping fit.

2. The spindle bearing structure that is easy to clean according to claim 1, characterized in that: Threaded holes are provided on the surfaces of the bearing seat (101) and the end cover (102), and the bearing seat (101) and the end cover (102) are matched with each other.

3. The spindle bearing structure that is easy to clean according to claim 2, characterized in that: The observation member (104) includes a sealing plate (104a), a pin rod (104b) passing through one end of the sealing plate (104a), a push plate (104c) is provided on the outside of the pin rod (104b), a guide groove (104d) is provided on the surface of the push plate (104c), and a slider (104e) is provided inside the guide groove (104d); The push plate (105) includes an inclined plate (105a), a guide block (105b) is provided on the outside of the inclined plate (105a), and a sliding groove (105c) matching with the guide block (105b) is left on the outside of the retaining ring (103); An engaging groove (106b) is also provided on the inner side of the rotating ring (106) away from the rotating groove (106a).

4. The spindle bearing structure that is easy to clean according to claim 3, characterized in that: The inclined plate (105a) and the fitting groove (106b) are both wedge-shaped, and the inclined plate (105a) and the fitting groove (106b) cooperate with each other; The inner side of the inclined plate (105a) is fixed to the slider (104e).

5. The spindle bearing structure that is easy to clean according to claim 4, characterized in that: The slider (104e) and the guide groove (104d) are in sliding fit, and the guide groove (104d) is arranged in a quarter elliptical arc shape.

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