Roller bearing with protective structure

Abstract

The utility model provides a roller bearing with a protective structure, which relates to the field of bearings and comprises a protective cover, a dustproof cotton cover, a fiber cloth sticker, blades and a hook-and-loop fastener. The protective cover is screwed with the connecting shell through threads; the connecting shell and the bearing outer ring are connected in an inserted mode. The fiber cloth paste and the dustproof cotton cover are sewn through sewing threads; the hook-and-loop fastener and the protective cover are bonded through super glue, and the hook-and-loop fastener and the fiber cloth patch are mutually bonded; the blades are welded to the inner side face of the outer-ring wind frame, and the blades are welded to the outer side face of the inner-ring wind frame. The inner ring wind frame is nested on the outer side surface of the bearing inner ring, and the inner ring wind frame is fixedly connected with the bearing inner ring through a bolt; through the arrangement of the blades, the dustproof cotton cover, the inner ring wind frame and the outer ring wind frame, heat dissipation and cooling of a bearing rolling body are achieved, external dust infection is avoided, and the problems that a traditional roller bearing is poor in dust isolation performance and the bearing is heated under the condition of high rotating speed are solved.

Description

Technical Field

[0001] The utility model belongs to the field of bearings, and more specifically, particularly relates to a roller bearing with a protective structure. Background Art

[0002] Roller bearings are a type of rolling bearings, which are characterized by using cylinders as rolling elements. Due to the large contact area of ​​the cylinder, the contact stress distribution of the inner and outer rings on the rolling elements is more uniform, and the roller bearings can withstand large radial or axial loads to reduce the friction and loss of the heavy rotating shaft. At present, traditional roller bearings are usually composed of an inner ring, an outer ring, rolling elements and a cage. It can be seen that the rolling element structure of the roller bearing is relatively exposed, and dust in the outside air is very easy to accumulate between the inner and outer rings, causing the friction of the roller bearing to increase during operation, which not only reduces the operating efficiency of the roller bearing, but also causes wear of the cylindrical rolling elements, shortening the service life of the roller bearing. In addition, the cylindrical rolling element has a large contact area with the inner and outer rings. Under high-speed operation, the mixed friction between the inner and outer rings of the rolling element will generate high heat, causing the rolling element to burn and deform or the bearing to lock. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a roller bearing with a protective structure to solve the problems of poor dust isolation performance of traditional roller bearings and heating of the bearings under high rotation speed.

[0004] The utility model provides a roller bearing with a protective structure, comprising an inner ring and an outer ring of the bearing; the outer ring of the bearing is nested on the outside of a retaining frame, the inner side surface of the outer ring of the bearing is in close contact with a cylindrical rolling body, and the outer side surface of the outer ring of the bearing is provided with two groups of opening grooves; the inner ring of the bearing is embedded in the inner side of the retaining frame, the outer side surface of the inner ring of the bearing is in close contact with a cylindrical rolling body, and the cylindrical rolling body is rotatably connected to the retaining frame; it also includes a protective cover, a dustproof cotton cover, a fiber cloth patch, a blade and a bristle Velcro; the protective cover and the connecting The connecting shell is screwed together by threads; the connecting shell is nested in the outer side of the bearing outer ring, and the connecting shell and the bearing outer ring are plugged into each other; the fiber cloth patch and the dustproof cotton cover are sewn together by sewing thread; the bristle Velcro and the protective cover are bonded by strong glue, and the bristle Velcro and the fiber cloth patch are bonded to each other; the blades are welded and connected to the inner side of the outer ring wind frame, and the blades are welded and connected to the outer side of the inner ring wind frame; the number of the inner ring wind frame is two groups, the inner ring wind frame is nested in the outer side of the bearing inner ring, and the inner ring wind frame and the bearing inner ring are fixedly connected by bolts.

[0005] In at least some embodiments, there are two groups of protective covers, which are symmetrically nested at the left and right side edges of the outer ring of the bearing. Each group of protective covers is made of rubber material to prevent the edge of the outer ring of the bearing from being damaged by bumps and vibrations caused by mechanical equipment. A through-hole structure that runs through the center of the protective cover is provided. Threads and six groups of rectangular pillars are provided on the hole walls on the inner sides of the through-holes of the protective cover. The rectangular pillars are distributed in a circular array around the central axis of the protective cover. The six groups of rectangular pillars are respectively opposite to the six groups of fiber cloth patches on the left and right, and each group of rectangular pillars of the protective cover is bonded with bristle Velcro.

[0006] In at least some embodiments, there are two groups of dust-proof cotton covers, which are respectively distributed on the right side of the right protective cover and the left side of the left protective cover. A through hole is provided in the center of the dust-proof cotton cover, and the outer ring of the bearing is inserted into the through hole of the dust-proof cotton cover. Each group of dust-proof cotton covers is made of polyurethane filter sponge material.

[0007] In at least some embodiments, the number of blades is eighty groups, each group of blades is arranged at an angle of 30 degrees, and every forty groups of blades are distributed in a circular array around the central axis of the inner ring wind frame, and the blades are welded and connected between the outer ring wind frames.

[0008] In at least some embodiments, the fiber cloth patches are in six groups, and the fiber cloth patches are distributed in a circular array around the central axis of the dust-proof cotton cover, and each group of fiber cloth patches adopts a round wool fiber structure.

[0009] In at least some embodiments, the outer side surface of the connecting shell is provided with a threaded structure near the left and right ends, and the two groups of threads on the inner sides of the protective cover through holes are respectively engaged and screwed on the threaded structures of the protective covers. The connecting shell is a cylindrical structure that passes through the left and right sides, and the inner side surface of the connecting shell cylinder is provided with two groups of relatively distributed long convex key structures. The convex key structure of the connecting shell is embedded in the long groove of the outer ring of the bearing.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, blades, inner ring wind frame and outer ring wind frame are provided. When the inner ring of the bearing rotates at high speed, forty groups of blades are welded between the inner ring wind frame and the outer ring wind frame to form a fan structure, which accelerates the gas flow between the inner ring of the bearing and the outer ring of the bearing, so that low-temperature air is sucked into the bearing to absorb the heat generated by the friction of the cylindrical rolling body, and then blown out from the other side of the bearing, thereby achieving heat dissipation and cooling of the cylindrical rolling body and preventing the bearing rolling body from burning and deformation.

[0012] 2. In the utility model, since the dustproof cotton cover is made of polyurethane sponge, the high permeability and high filtering properties of the porous structure of the polyurethane sponge are utilized to allow the air between the inner ring and the outer ring of the bearing to circulate rapidly, thereby preventing external dust from falling into and accumulating inside the roller bearing, effectively reducing the friction loss between the cylindrical rolling element and the dust, and increasing the service life of the roller bearing.

[0013] 3. In the utility model, the roller bearing is covered and protected by a threaded screw connection structure of two sets of rubber protective covers and a connecting shell, thereby preventing the outer ring structure of the bearing from being deformed and damaged due to external collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the cutaway structure of the utility model.

[0016] Figure 3 It is a front view structural schematic diagram of the utility model.

[0017] Figure 4 It is a front view cross-sectional structural schematic diagram of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the right view of the utility model.

[0019] Figure 6 It is a right side cross-sectional structural schematic diagram of the utility model.

[0020] Figure 7 It is a schematic diagram of the explosion structure of the utility model.

[0021] Figure numerals: 1. Protective cover; 2. Connecting shell; 3. Dust-proof cotton cover; 4. Bearing inner ring; 5. Fiber cloth patch; 6. Bearing outer ring; 7. Outer ring wind rack; 8. Cylindrical rolling element; 9. Cage; 10. Blade; 11. Inner ring wind rack; 12. Velcro. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figure 1-Figure 7As shown, the utility model provides a roller bearing with a protective structure, including a bearing inner ring 4 and a bearing outer ring 6; the bearing outer ring 6 is nested on the outside of a retaining frame 9, the inner side surface of the bearing outer ring 6 is in close contact with a cylindrical rolling body 8, and the outer side surface of the bearing outer ring 6 is provided with two groups of open grooves; the bearing inner ring 4 is embedded on the inner side of the retaining frame 9, the outer side surface of the bearing inner ring 4 is in close contact with the cylindrical rolling body 8, and the cylindrical rolling body 8 is rotatably connected to the retaining frame 9; it also includes a protective cover 1, a dustproof cotton cover 3, a fiber cloth patch 5, a blade 10 and a bristle Velcro 12; the protective cover 1 and the connecting The connecting shell 2 is screwed together by threads; the connecting shell 2 is nested in the outer side of the bearing outer ring 6, and the connecting shell 2 and the bearing outer ring 6 are plugged into each other; the fiber cloth patch 5 and the dust-proof cotton cover 3 are sewn together by sewing thread; the bristle Velcro 12 and the protective cover 1 are bonded by strong glue, and the bristle Velcro 12 and the fiber cloth patch 5 are bonded to each other; the blades 10 are welded and connected to the inner side of the outer ring wind frame 7, and the blades 10 are welded and connected to the outer side of the inner ring wind frame 11; the number of the inner ring wind frame 11 is two groups, the inner ring wind frame 11 is nested in the outer side of the bearing inner ring 4, and the inner ring wind frame 11 and the bearing inner ring 4 are fixedly connected by bolts.

[0024] When the utility model performs anti-collision protection work on the roller bearing structure, the two groups of grooves on the outer side of the bearing outer ring 6 are connected to the two groups of relatively distributed long convex key structures of the connecting shell 2, and then the convex key structure of the connecting shell 2 is inserted into the groove structure of the bearing outer ring 6 from the right end or the left end of the bearing outer ring 6, and then the two groups of protective covers 1 are respectively placed on the left and right sides of the connecting shell 2. Since the threaded ends on the through-hole walls of the protective covers 1 are respectively engaged with the two groups of threads on the outer side of the connecting shell 2, the two groups of protective covers 1 can be screwed on the left and right sides of the connecting shell 2. At this time, the surface structure of the roller bearing is arranged on the inner side of the connecting shell 2 and the protective cover 1, completing the covering protection of the roller bearing. When performing dust prevention and heat dissipation work on the roller bearing, first The six groups of fiber cloth patches 5 sewn on the dust-proof cotton cover 3 are adhered to the six groups of bristle Velcro 12 adhered on the protective cover 1. During the high-speed rotation of the bearing inner ring 4, the bearing inner ring 4 drives the outer ring wind frame 7, the blades 10 and the inner ring wind frame 11 to form a fan structure to rotate, so that the external low-temperature air enters the roller bearing through the polyurethane sponge porous structure of the dust-proof cotton cover 3. After the external low-temperature air exchanges heat with the cylindrical rolling body 8, it is blown out from the dust-proof cotton cover 3 on the other side of the bearing, so that the cylindrical rolling body 8 is cooled and dissipated by airflow. At this time, the high permeability and high filtering properties of the polyurethane sponge porous structure of the dust-proof cotton cover 3 are utilized to prevent dust from falling into the roller bearing during the gas flow, thereby realizing the dust-proof and heat dissipation function of the roller bearing.

[0025] In the disclosed embodiment, there are two groups of protective covers 1, which are symmetrically nested at the left and right side edges of the bearing outer ring 6. Each group of protective covers 1 is made of rubber material to prevent the edge of the bearing outer ring 6 from being damaged by bumps and collisions caused by the vibration of mechanical equipment. A through-hole structure that passes through the left and right sides is provided at the center of the protective cover 1. The hole wall on the inner side of the through-hole of the protective cover 1 is provided with threads and six groups of rectangular pillars. The rectangular pillars are distributed in a circular array around the central axis of the protective cover 1. The six groups of rectangular pillars are respectively opposite to the six groups of fiber cloth patches 5 on the left and right. A bristle Velcro 12 is bonded to each group of rectangular pillars of the protective cover 1, and the fiber cloth patch 5 and the bristle Velcro 12 are bonded to each other. Without disassembling the protective cover 1, the dust-proof cotton cover 3 sewn to the fiber cloth patch 5 can be quickly disassembled and replaced, and the operation is simple and convenient.

[0026] In the disclosed embodiment, there are two groups of dust-proof cotton covers 3, which are respectively distributed on the right side of the right protective cover 1 and the left side of the left protective cover 1. A through hole is provided in the center of the dust-proof cotton cover 3, and the outer ring 6 of the bearing is inserted into the through hole of the dust-proof cotton cover 3 to complete the closed separation between the internal structure of the roller bearing and the outside world. Each group of dust-proof cotton covers 3 is made of polyurethane filter sponge material. Since the porous structure of the polyurethane sponge has a porosity of 97%, the polyurethane sponge has a small flow resistance to air and a high filtration rate. While preventing dust from entering the interior of the roller bearing, the normal flow of the heat dissipation airflow is ensured.

[0027] In the disclosed embodiment, the number of blades 10 is eighty groups, each group of blades 10 is arranged at an oblique angle of 30 degrees, and every forty groups of blades 10 are distributed in a circular array around the central axis of the inner ring wind frame 11. The blades 10 are welded and connected between the outer ring wind frames 7 and the outer ring wind frames 7 to form a fan structure. During the rotation of the bearing inner ring 4, the bearing inner ring 4 drives the eighty groups of blades 10 to stir the air, thereby realizing gas circulation and heat dissipation between the bearing inner ring 4 and the bearing outer ring 6.

[0028] In the disclosed embodiment, there are six groups of fiber cloth patches 5, which are distributed in a circular array around the central axis of the dust-proof cotton cover 3. Each group of fiber cloth patches 5 adopts a round-hair fiber structure to achieve adhesion between the fiber cloth patches 5 and the barbed Velcro 12 hooks.

[0029] In the disclosed embodiment, a threaded structure is provided on the outer side surface of the connecting shell 2 near the left and right ends, and the threads on the inner sides of the two groups of through holes of the protective cover 1 are respectively meshed and screwed on the threaded structures of the protective cover 1 to complete the assembly wrapping protection of the roller bearing and prevent the roller bearing from being damaged by collision. The connecting shell 2 is a cylindrical structure that passes through the left and right sides, and two groups of relatively distributed long convex key structures are provided on the inner side surface of the cylindrical body of the connecting shell 2. The convex key structure of the connecting shell 2 is embedded in the long groove of the bearing outer ring 6 to complete the positioning and fixation of the connecting shell 2 and the bearing outer ring 6 to prevent the bearing outer ring 6 from deflecting on the inner side of the connecting shell 2.

[0030] The installation, connection or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc., and the specific structures, models and coefficient indicators of all its components are its own technology, as long as it can achieve its beneficial effects, it can be implemented. The fiber cloth patch 5 and the bristle Velcro 12 used above are common components on the market. When you buy them back and use them, you only need to connect them according to the instruction manual purchased together, so I will not repeat them here.

[0031] The technical solution of the present invention is not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A roller bearing with a protective structure, comprising a bearing inner ring (4) and a bearing outer ring (6); the bearing outer ring (6) is nested on the outside of a retaining frame (9), the inner side surface of the bearing outer ring (6) is in close contact with a cylindrical rolling body (8), and the outer side surface of the bearing outer ring (6) is provided with two groups of open grooves; the bearing inner ring (4) is embedded on the inside of the retaining frame (9), the outer side surface of the bearing inner ring (4) is in close contact with the cylindrical rolling body (8), and the cylindrical rolling body (8) is rotatably connected to the retaining frame (9); characterized in that: The invention also comprises a protective cover (1), a dustproof cotton cover (3), a fiber cloth patch (5), a blade (10) and a bristle Velcro (12); the protective cover (1) is screwed to the connecting shell (2) by means of threads; the connecting shell (2) is nested in the outer side surface of the bearing outer ring (6), and the connecting shell (2) and the bearing outer ring (6) are plugged into each other; the fiber cloth patch (5) and the dustproof cotton cover (3) are sewn together by means of sewing thread; the bristle Velcro (12) and the protective cover (1) are bonded by means of strong glue, and the bristle Velcro (12) and the fiber cloth patch (5) are bonded to each other; the blade (10) is welded to the inner side surface of the outer ring wind frame (7), and the blade (10) is welded to the outer side surface of the inner ring wind frame (11); the number of the inner ring wind frame (11) is two sets, the inner ring wind frame (11) is nested in the outer side surface of the bearing inner ring (4), and the inner ring wind frame (11) and the bearing inner ring (4) are fixedly connected by bolts.

2. A roller bearing with a protective structure as claimed in claim 1, characterized in that: The number of the protective covers (1) is two groups. The protective covers (1) are symmetrically nested at the left side edge and the right side edge of the bearing outer ring (6). Each group of protective covers (1) is made of rubber material to prevent the edge of the bearing outer ring (6) from being damaged by collision due to vibration of mechanical equipment. A through hole structure that passes through the left and right sides is provided at the center of the protective cover (1). The hole wall inside the through hole of the protective cover (1) is provided with a thread and six groups of rectangular pillars. The rectangular pillars are distributed in a circular array around the central axis of the protective cover (1). The six groups of rectangular pillars are respectively opposite to the six groups of fiber cloth patches (5) on the left and right. Each group of rectangular pillars of the protective cover (1) is bonded with a bristle Velcro (12).

3. A roller bearing with a protective structure as claimed in claim 1, characterized in that: The number of the dust-proof cotton covers (3) is two groups, and the dust-proof cotton covers (3) are respectively distributed on the right side surface of the right protective cover (1) and the left side surface of the left protective cover (1). A through hole is provided at the center of the dust-proof cotton cover (3), and the outer ring (6) of the bearing is inserted into the through hole of the dust-proof cotton cover (3). Each group of dust-proof cotton covers (3) is made of polyurethane filter sponge material.

4. A roller bearing with a protective structure as claimed in claim 1, characterized in that: The number of the blades (10) is eighty groups, each group of blades (10) is arranged at an oblique angle of 30 degrees, and each forty groups of blades (10) are distributed in a ring array around the central axis of the inner ring wind frame (11), and the blades (10) are welded and connected between the outer ring wind frames (7) and the outer ring wind frames (7).

5. A roller bearing with a protective structure as claimed in claim 1, characterized in that: The fiber cloth patches (5) are in six groups, and the fiber cloth patches (5) are distributed in a circular array around the central axis of the dustproof cotton cover (3), and each group of fiber cloth patches (5) adopts a round wool fiber structure.

6. A roller bearing with a protective structure as claimed in claim 1, characterized in that: The outer side surface of the connecting shell (2) is provided with a threaded structure near the left and right ends. The threads on the inner sides of the two sets of protective cover (1) through holes are respectively meshed and screwed on the threaded structures of the protective cover (1). The connecting shell (2) is a cylindrical structure that passes through the left and right sides. The inner side surface of the cylindrical body of the connecting shell (2) is provided with two sets of relatively distributed long convex key structures. The convex key structure of the connecting shell (2) is embedded in the long groove of the bearing outer ring (6).

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