Stainless steel puller backing bearing and lubricated rolling mechanism

Abstract

The utility model belongs to bearing technical field, concretely relates to a kind of back-up bearing and lubricated rolling mechanism for stainless steel stretch straightening, and the bearing includes: main shaft and the shaft cylinder of being set in the outside of main shaft;The outside of main shaft is provided with several lubricated rolling mechanism and the sealing mechanism adapted with corresponding lubricated rolling mechanism;Wherein the outer wall of main shaft is provided with several recesses to accommodate the rolling member in corresponding rolling mechanism;The outside of rolling member is provided with annular retainer to lubricate rolling member when rolling member and annular retainer rub;And the abutting member in the sealing mechanism is adapted to the end surface of each rolling member to limit rolling member movement and separate annular retainer.

Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, specifically relating to a stainless steel tension straightening backing bearing and a lubricating rolling mechanism. Background Technology

[0002] In continuous production, stainless steel strip needs to be straightened using a tension straightening machine (hereinafter referred to as "tension straightening machine") to eliminate its shape defects and improve its mechanical properties. The tension straightening machine achieves straightening by repeatedly bending the strip between the support rollers and the work rollers. Among them, the backing bearing is a key core component in the support roller system. With the stainless steel industry's increasing requirements for strip flatness and surface quality, more stringent requirements have been placed on the reliability of the backing bearing.

[0003] However, the backing bearings used in existing stainless steel tension leveling machines have significant shortcomings in lubrication. Traditional lubrication methods mostly use oil-air lubrication. Although oil-air lubrication has a certain cooling effect, under high-speed and impact loads, the oil film is difficult to form stably. Poor lubrication not only causes excessive bearing temperature rise, increased vibration, and loss of precision, but is also a major cause of premature bearing failure, spalling, and even seizure. This severely restricts the bearing's design life and increases equipment maintenance costs and downtime.

[0004] Therefore, a stainless steel straightening backing bearing and lubrication rolling mechanism are designed to solve the problem of poor lubrication caused by the difficulty in forming a stable oil film under high-speed and impact loads when using oil-air lubrication in the prior art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one embodiment of a stainless steel tension straightening backing bearing and a lubricating rolling mechanism.

[0007] In a first aspect, embodiments of this disclosure provide a stainless steel tension straightening backing bearing, comprising: The main spindle and the sleeve fitted around the main spindle; The main shaft is externally equipped with several lubrication rolling mechanisms and sealing mechanisms adapted to the corresponding lubrication rolling mechanisms; wherein The outer wall of the main shaft is provided with several grooves to accommodate the rolling elements in the corresponding rolling mechanism; The rolling element is externally provided with an annular retainer to lubricate the rolling element when it rubs against the annular retainer; and The abutting element in the sealing mechanism is adapted to abut against the end face of each rolling element to restrict the rolling element from disengaging from the annular retainer during movement.

[0008] In one optional embodiment, each of the lubrication rolling mechanisms includes at least one pair of annular retainers; wherein The two annular retainers are fitted back-to-back and both are sleeved on the outer wall of the main shaft; Each of the annular cages has several retaining grooves on one of its opposite ends to accommodate the corresponding rolling elements.

[0009] In one alternative embodiment, the outer wall of the cage is coated with plastic grease.

[0010] In one optional embodiment, the sealing mechanism includes: An annular seal is fitted onto the outer wall of the main shaft; At least one annular groove is provided on the outer wall of the annular seal; The outer sealing ring is set inside the annular groove; where The outer sealing ring is adapted to abut against the inner wall of the bearing sleeve to seal between the annular seal and the bearing sleeve.

[0011] In one optional embodiment, an inner sealing ring is provided between the inner wall of the annular seal and the outer wall of the spindle; The inner sealing ring is adapted to abut against the outer wall of the spindle to seal between the spindle and the annular seal.

[0012] In one optional embodiment, the abutting member is disposed on one side of the annular seal, and the two end faces of the abutting member respectively abut against the annular seal and each rolling member; wherein The inner diameter of the contacting member is larger than the diameter of the main shaft, and the gap between the contacting member and the main shaft is an annular lubrication gap.

[0013] Secondly, embodiments of this disclosure also provide a lubricated rolling mechanism for a stainless steel tension straightening backing bearing, comprising: At least one pair of annular cages; wherein The two annular cages are fitted back-to-back and both are sleeved on the outer wall of the main shaft; Each of the annular cages has several retaining grooves on one of its opposite ends to accommodate the corresponding rolling elements.

[0014] In one alternative embodiment, the outer wall of the cage is coated with plastic grease.

[0015] The beneficial effect of this utility model is that the bearing is equipped with a lubrication rolling mechanism. By wrapping plastic grease on the outside of the annular cage in the lubrication rolling mechanism, friction is generated between each rolling element and the annular cage during the bearing movement. The heat generated by the friction causes the base oil in the plastic grease to precipitate out, and finally a lubricating oil film is formed on the outer wall of the bearing, thereby achieving lubrication protection for the bearing.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 An overall perspective view of the bearing provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the internal exploded structure of the bearing provided in an embodiment of this disclosure; Figure 3 This is a three-dimensional cross-sectional view of the sealing mechanism provided in the embodiments of this disclosure; Figure 4 This is a cross-sectional plan view of the bearing provided in an embodiment of this disclosure.

[0020] In the picture: 1. Shaft sleeve; 10. Main shaft; 11. Groove; 12. Fastening ring; 13. Connecting hole; 2. Sealing mechanism; 20. Annular seal; 200. Annular groove; 21. Outer sealing ring; 22. Inner sealing ring; 23. Contact element; 24. Annular lubrication gap; 3. Lubricating rolling mechanism; 30. Annular cage; 300. Retaining groove; 31. Rolling element. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0023] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0024] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0025] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0026] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0027] Research has revealed significant deficiencies in the lubrication of backing bearings used in existing stainless steel tension leveling machines. Traditional lubrication methods often employ oil-air lubrication. While oil-air lubrication offers some cooling effect, under high-speed and impact loads, the oil film struggles to form stably. Poor lubrication not only causes excessive bearing temperature rise, increased vibration, and loss of precision, but is also a major cause of premature bearing failure, spalling, and even seizure. This severely restricts the bearing's design life and increases equipment maintenance costs and downtime.

[0028] Based on the above research, this disclosure provides a stainless steel tension straightening backing bearing and a lubricating rolling mechanism. By providing a lubricating rolling mechanism, plastic grease is wrapped around the annular cage in the lubricating rolling mechanism. During the bearing movement, friction is generated between each rolling element and the annular cage. The heat generated by the friction causes the base oil to precipitate from the plastic thickener, and finally a lubricating oil film is formed on the outer wall of the bearing, thereby achieving lubrication and protection of the bearing.

[0029] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] In some embodiments, such as Figure 1 and Figure 2As shown, for the assembly of this backing bearing, the core component is the annular retainer 30 in the lubrication rolling mechanism 3. Each lubrication rolling mechanism 3 includes a pair of annular retainers 30, and the two annular retainers 30 are back-to-back. Preferably, there are two lubrication rolling mechanisms 3, that is, there are four annular retainers 30, which are symmetrically sleeved on the outer wall of the main shaft 10. Then, each rolling element 31 is placed one by one in the retaining groove 300 on the corresponding annular retainer 30. At the same time, several rolling elements 31 on each annular retainer 30 are arranged in a circle and placed in the corresponding groove 11 opened on the outer wall of the main shaft 10. The function of the groove is to restrict the rolling elements 30 from displacing and detaching from the corresponding retainer 30. Each cage 30 has its outer surface covered with plastic grease. During installation, the plastic grease on the cage 30 is in a solid state. After the entire backing bearing is assembled and put into use, as the rolling element 31 and the main shaft 10 rotate, the rolling element 31 and the corresponding groove 11 continuously generate heat through friction, causing the plastic grease in contact with the outer wall of the corresponding rolling element 31 to liquefy. At this time, the base oil in the plastic grease is released and falls onto the outer wall of the main shaft 10 through the rolling element 31. As the main shaft 10 rotates continuously, a lubricating oil film is formed on the outer wall of the main shaft 10, thereby protecting the main shaft 10.

[0033] In some embodiments, such as Figure 3 and Figure 4 As shown, two sealing mechanisms 2 are symmetrically arranged on the outer wall of the main shaft 10, and two lubrication rolling mechanisms 3 are located between the two sealing mechanisms 2. For sealing the main shaft 10, an annular seal 20 is sleeved on the outer wall of the main shaft 10. An annular groove 200 is opened on the outer wall of the annular seal 20 for installing an outer sealing ring 21. The number of annular grooves 200 is preferably two. The outer sealing ring 21 is used to seal the gap between the annular seal 20 and the shaft cylinder 1. The inner sealing ring 22 is set on the inner wall of the annular seal 20, and the outer wall of the inner sealing ring 22 abuts against the inner wall of the annular seal 20. The inner wall of the inner sealing ring 22 abuts against the outer wall of the main shaft 10, which is used to seal the outer wall of the main shaft 10 and the annular seal 20, so as to prevent external impurities from entering the interior of the shaft cylinder 1 and prevent the lubricating oil inside the shaft cylinder 1 from leaking. like Figure 4 As shown, the outer diameter of the contact member 23 is the same as the outer diameter of the annular seal 20, and it fits on the end face of the annular seal 20 facing the corresponding annular retainer 30. The end face of the contact member 23 facing the annular retainer 30 abuts against the end faces of several corresponding rolling members 31. After the entire assembly is completed, an annular lubrication gap 24 is formed between the contact member 23 and the spindle 10. Part of the lubricating oil falls into the annular lubrication gap 24 to lubricate the outer wall of the spindle 10. At the same time, the existence of the annular lubrication gap 24 prevents the rolling members 31 from directly contacting the annular seal 20 and affecting the sealing effect of the annular seal 20 and the inner and outer sealing rings during subsequent operation.

[0034] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0036] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0037] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A stainless steel tension straightening backing bearing, characterized in that, include: Main shaft (10) and sleeve (1) sleeved outside the main shaft (10); The main shaft (10) is externally provided with several lubrication rolling mechanisms (3) and sealing mechanisms (2) adapted to the corresponding lubrication rolling mechanisms (3); wherein The outer wall of the main shaft (10) is provided with several grooves (11) to accommodate the rolling elements (31) in the corresponding rolling mechanism (3). The outer side of the rolling element (31) is provided with an annular retainer (30) to lubricate the rolling element (31) when it rubs against the annular retainer (30); and The abutment (23) in the sealing mechanism (2) is adapted to abut against the end face of each rolling element (31) to restrict the rolling element (31) from disengaging from the annular retainer (30) during movement.

2. The stainless steel tension straightening backing bearing as described in claim 1, characterized in that, Each of the aforementioned lubrication rolling mechanisms (3) includes at least one pair of annular retainers (30); wherein The two annular retainers (30) are back-to-back and both are sleeved on the outer wall of the main shaft (10); Each of the annular retainers (30) has a plurality of retaining grooves (300) on one of its opposite ends to accommodate the corresponding rolling element (31).

3. The stainless steel tension straightening backing bearing as described in claim 2, characterized in that, The outer wall of the retainer (30) is covered with plastic grease.

4. The stainless steel tension straightening backing bearing as described in claim 3, characterized in that, The sealing mechanism (2) includes: An annular seal (20) is fitted onto the outer wall of the main shaft (10); At least one annular groove (200) is provided on the outer wall of the annular seal (20); The outer sealing ring (21) is disposed within the annular groove (200); wherein The outer sealing ring (21) is adapted to abut against the inner wall of the shaft cylinder (1) to seal between the annular seal (20) and the shaft cylinder (1).

5. The stainless steel tension straightening backing bearing as described in claim 4, characterized in that, An inner sealing ring (22) is provided between the inner wall of the annular seal (20) and the outer wall of the main shaft (10). The inner sealing ring (22) is adapted to abut against the outer wall of the main shaft (10) to seal between the main shaft (10) and the annular seal (20).

6. The stainless steel tension straightening backing bearing as described in claim 5, characterized in that, The abutment (23) is disposed on one side of the annular seal (20), and the two end faces of the abutment (23) abut against the annular seal (20) and each rolling element (31), respectively; wherein The inner diameter of the contact member (23) is larger than the diameter of the main shaft (10), and the gap between the contact member (23) and the main shaft (10) is an annular lubrication gap (24).

7. A lubricated rolling mechanism for a stainless steel tension straightening backing bearing as described in any one of claims 1-6, characterized in that, include: At least one pair of annular retainers (30); wherein The two annular retainers (30) are back-to-back and both are sleeved on the outer wall of the main shaft (10); Each of the annular retainers (30) has a plurality of retaining grooves (300) on one of its opposite ends to accommodate the corresponding rolling element (31).

8. The lubricated rolling mechanism for the stainless steel tension straightening backing bearing as described in claim 7, characterized in that, The outer wall of the retainer (30) is covered with plastic grease.

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