Dustproof bearing

Abstract

The utility model discloses a dustproof bearing which comprises a positioning seat, a lower bearing seat is fixed in the center of the top end of the positioning seat, an outer steel ring is mounted on the inner side of the lower bearing seat, an upper bearing seat is mounted at the top end of the lower bearing seat above the outer steel ring, and locking nuts are mounted on two sides of the top end of the upper bearing seat. A protrusion is arranged in the center of the top end of the locking nut, a stud is fixed to the center of the bottom end of the locking nut, the bottom end of the stud penetrates through the upper bearing seat and is in threaded connection with the lower bearing seat, an inner steel ring is arranged in the outer steel ring, and ball pieces are movably connected to the outer wall of the inner steel ring at equal intervals. The outer wall of the ball part makes contact with the inner wall of the outer steel ring, kidney-shaped holes are formed in the two sides of the interior of the positioning base, and the two ends of each kidney-shaped hole extend to the exterior of the positioning base. According to the dustproof bearing, the dustproof effect is guaranteed when the dustproof bearing is used, the purpose that the dustproof bearing is easy to disassemble and maintain is achieved, and the stability of the dustproof bearing is guaranteed when the dustproof bearing is used.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a dustproof bearing. Background Art

[0002] Bearings are components that fix and reduce the load friction coefficient during mechanical transmission. When other parts move relative to each other on the shaft, bearings can be used to reduce the friction coefficient during power transmission and keep the center position of the shaft fixed.

[0003] A dustproof bearing with reference publication number CN207033979U comprises a bearing body and a bearing sleeve arranged on the outer ring of the bearing for fixing the bearing, the bearing sleeve comprises an inner ring and an outer ring which are sleeved together, the inner ring is provided with a dustproof structure, the dustproof bearing is provided with an inner ring and an outer ring, and the inner ring and the outer ring are connected more tightly by a connection relationship, and also has a detachable function, which can make the connection and contact between the inner ring and the outer ring tighter while meeting the convenience of use, and prevents dust in the external environment from entering the bearing and causing physical damage to the bearing and the dustproof structure, directly increases the service life of the dustproof structure, and indirectly increases the service life of the bearing, according to the above, although the dustproof bearing can be well applied, it usually only relies on the setting of related components such as dustproof sheets to seal and block the gap between the inner ring and the outer ring, and because it is not convenient to perform double dustproof treatment, the dustproof effect of this type of dustproof bearing is still difficult to achieve the established expectations, which often troubles users. Utility Model Content

[0004] The purpose of the utility model is to provide a dustproof bearing to solve the problem that the dustproof bearing mentioned in the above background technology can be well applied, but usually only relies on the setting of dustproof sheets and other related components to seal and block the gap between the inner ring and the outer ring. Since it is not convenient to perform double dustproof treatment, the dustproof effect of this type of dustproof bearing is still difficult to achieve the expected problem.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-proof bearing, including a positioning seat, a lower bearing seat is fixed at the center position of the top of the positioning seat, an outer steel ring is installed on the inner side of the lower bearing seat, an upper bearing seat is installed on the top of the lower bearing seat above the outer steel ring, locking nuts are installed on both sides of the top of the upper bearing seat, a protrusion is provided at the center position of the top of the locking nut, a stud is fixed at the center position of the bottom end of the locking nut, the bottom end of the stud passes through the upper bearing seat and is threadedly connected to the lower bearing seat, an inner steel ring is provided inside the outer steel ring, and ball parts with equal spacing are movably connected to the outer wall of the inner steel ring, and the outer wall of the ball part touches the inner wall of the outer steel ring.

[0006] Preferably, waist-shaped holes are provided on both sides of the interior of the positioning seat, and both ends of the waist-shaped holes extend to the exterior of the positioning seat. The waist-shaped holes are provided so that the dustproof bearing can be positioned with the help of positioning pins.

[0007] Preferably, a sealing ring is provided at one end of the inner steel ring, and the diameter of the sealing ring is equal to the diameter of the inner steel ring. The sealing ring is provided to improve the sealing and dustproof performance of the dustproof bearing.

[0008] Preferably, a first annular outer cover plate is provided on the side of the inner steel ring away from the sealing ring, and the inner wall of the first annular outer cover plate touches the surface of the lower bearing seat and the upper bearing seat. The first annular outer cover plate is provided to improve the sealing and dustproof performance of the dustproof bearing.

[0009] Preferably, first fastening bolts are installed at equal intervals at the edge of the surface of the first annular outer cover plate, one end of the first fastening bolt passes through the first annular outer cover plate and is threadedly connected to the surfaces of the lower bearing seat and the upper bearing seat respectively, and the first fastening bolt is provided to facilitate the placement of the first annular outer cover plate.

[0010] Preferably, a second annular outer cover plate is installed on the outer wall of the sealing ring away from the inner steel ring, and equally spaced pin holes are provided at the edge position inside the second annular outer cover plate. The second annular outer cover plate is provided to improve the sealing and dustproof performance of the dustproof bearing.

[0011] Preferably, a second fastening bolt is installed on the outer wall of the second annular outer cover plate at the pin hole position, one end of the second fastening bolt passes through the pin hole and is threadedly connected to the outer walls of the lower bearing seat and the upper bearing seat respectively, and the second fastening bolt is provided to facilitate the placement of the second annular outer cover plate.

[0012] Preferably, an annular sealing plate is provided on the inner wall of one side of the outer steel ring, and the inner wall of the annular sealing plate touches the outer wall of the inner steel ring. The annular sealing plate is provided to improve the sealing and dustproof performance of the dustproof bearing.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the dustproof bearing not only ensures the dustproof effect when the dustproof bearing is used, but also achieves the purpose of facilitating the disassembly and maintenance of the dustproof bearing, and ensures the stability of the dustproof bearing when it is used;

[0014] (1) The purpose of double sealing the gap between the outer steel ring and the inner steel ring can be achieved by arranging the annular sealing plate on one side between the inner steel ring and the outer steel ring for sealing, and the sealing ring contacts the second annular outer cover plate to seal the other side between the inner steel ring and the outer steel ring, and at the same time, the first annular outer cover plate is installed on the surface of one side of the lower bearing seat and the upper bearing seat by the first fastening bolt, and the second annular outer cover plate is installed on the surface of the other side of the lower bearing seat and the upper bearing seat by the second fastening bolt, thereby reducing the dust from flowing into the gap between the inner steel ring and the outer steel ring, thereby ensuring the dustproof effect of the dustproof bearing when it is used;

[0015] (2) By turning the locking nut, the lower end of the stud is screwed out to the outside of the lower bearing seat, and then the upper bearing seat is pulled to remove it from the top of the lower bearing seat, and the outer steel ring and other related parts can be disassembled, thereby achieving the purpose of facilitating the disassembly and maintenance of the dustproof bearing;

[0016] (3) By setting waist-shaped holes on both sides of the positioning seat, the dustproof bearing can be positioned and installed by simply using a positioning pin to pass through the waist-shaped hole and screw it into the installation platform, thereby ensuring the stability of the dustproof bearing during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a rear view structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the front view structure of the outer steel ring of the utility model;

[0020] Figure 4 This is a rear view structural diagram of the outer steel ring of the utility model;

[0021] Figure 5 This is a front view structural diagram of the ball bearing of the utility model;

[0022] Figure 6 It is a schematic diagram of the enlarged side view of the stud of the utility model.

[0023] In the figure: 1, positioning seat; 101, waist-shaped hole; 2, lower bearing seat; 3, upper bearing seat; 4, locking nut; 401, stud; 402, protrusion; 5, first annular outer cover plate; 6, first fastening bolt; 7, inner steel ring; 8, ball bearing; 9, second annular outer cover plate; 901, pin hole; 10, second fastening bolt; 11, sealing ring; 12, annular sealing plate; 13, outer steel ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6 The utility model provides an embodiment: a dustproof bearing, comprising a positioning seat 1, both sides of the interior of the positioning seat 1 are provided with waist-shaped holes 101, and both ends of the waist-shaped holes 101 extend to the outside of the positioning seat 1;

[0026] When in use, the waist-shaped hole 101 is provided so as to position the dustproof bearing with the help of the positioning pin;

[0027] A lower bearing seat 2 is fixed at the center position of the top of the positioning seat 1, an outer steel ring 13 is installed on the inner side of the lower bearing seat 2, an annular sealing plate 12 is arranged on the inner wall of one side of the outer steel ring 13, and the inner wall of the annular sealing plate 12 touches the outer wall of the inner steel ring 7;

[0028] When in use, the annular sealing plate 12 is provided to improve the sealing and dustproof performance of the dustproof bearing;

[0029] An upper bearing seat 3 is installed at the top of the lower bearing seat 2 above the outer steel ring 13, and locking nuts 4 are installed on both sides of the top of the upper bearing seat 3. A protrusion 402 is provided at the center position of the top of the locking nut 4, and a stud 401 is fixed at the center position of the bottom end of the locking nut 4. The bottom end of the stud 401 penetrates the upper bearing seat 3 and is threadedly connected to the lower bearing seat 2. An inner steel ring 7 is provided inside the outer steel ring 13, and a sealing ring 11 is provided at one end of the inner steel ring 7. The diameter of the sealing ring 11 is equal to the diameter of the inner steel ring 7.

[0030] When in use, the sealing and dustproof performance of the dustproof bearing is improved by setting the sealing ring 11;

[0031] A first annular outer cover plate 5 is provided on the side of the inner steel ring 7 away from the sealing ring 11, and the inner wall of the first annular outer cover plate 5 contacts the surface of the lower bearing seat 2 and the upper bearing seat 3;

[0032] When in use, the first annular outer cover plate 5 is provided to improve the sealing and dustproof performance of the dustproof bearing;

[0033] First fastening bolts 6 are installed at equal intervals at the edge of the surface of the first annular outer cover plate 5, one end of the first fastening bolt 6 passes through the first annular outer cover plate 5 and is threadedly connected to the surface of the lower bearing seat 2 and the upper bearing seat 3 respectively;

[0034] When in use, the first fastening bolt 6 is arranged so as to place the first annular outer cover plate 5;

[0035] A second annular outer cover plate 9 is installed on the outer wall of the sealing ring 11 away from the inner steel ring 7, and pin holes 901 with equal spacing are arranged at the edge of the second annular outer cover plate 9;

[0036] When in use, the second annular outer cover plate 9 is provided to improve the sealing and dustproof performance of the dustproof bearing;

[0037] A second fastening bolt 10 is installed on the outer wall of the second annular outer cover plate 9 at the position of the pin hole 901. One end of the second fastening bolt 10 passes through the pin hole 901 and is threadedly connected to the outer wall of the lower bearing seat 2 and the upper bearing seat 3 respectively.

[0038] When in use, the second annular outer cover plate 9 is arranged by setting the second fastening bolt 10;

[0039] The outer wall of the inner steel ring 7 is movably connected with ball members 8 at equal intervals, and the outer wall of the ball members 8 touches the inner wall of the outer steel ring 13.

[0040] When the embodiment of the present application is used, firstly, four waist-shaped holes 101 are divided into two groups and arranged on both sides of the interior of the positioning seat 1. The dust-proof bearing can be positioned and placed on the mounting platform by means of positioning pins that penetrate the waist-shaped holes 101 and are screwed into the mounting platform. Then, the annular sealing plate 12 is arranged on one side between the inner steel ring 7 and the outer steel ring 13 for sealing, and the sealing ring 11 contacts the second annular outer cover plate 9 to seal the other side between the inner steel ring 7 and the outer steel ring 13, thereby achieving the purpose of preliminarily sealing and dustproofing the dust-proof bearing. Then, the first fastening bolt 6 is used to tighten the dust-proof bearing. The first annular outer cover plate 5 is installed on the surface of one side of the lower bearing seat 2 and the upper bearing seat 3, and the second annular outer cover plate 9 is installed on the surface of the other side of the lower bearing seat 2 and the upper bearing seat 3 by the second fastening bolt 10, so that the gap between the outer steel ring 13 and the inner steel ring 7 can be further sealed to enhance the dustproof effect of the dustproof bearing. Finally, by turning the locking nut 4, only the lower end of the stud 401 needs to be screwed out to the outside of the lower bearing seat 2, and the upper bearing seat 3 can be pulled to be removed from the top of the lower bearing seat 2, so as to facilitate the disassembly and maintenance of the dustproof bearing, thereby completing the use of the dustproof bearing.

Claims

1. A dustproof bearing, characterized in that: The invention comprises a positioning seat (1), a lower bearing seat (2) is fixed at the center position of the top end of the positioning seat (1), an outer steel ring (13) is installed on the inner side of the lower bearing seat (2), an upper bearing seat (3) is installed on the top end of the lower bearing seat (2) above the outer steel ring (13), locking nuts (4) are installed on both sides of the top end of the upper bearing seat (3), a protrusion (402) is provided at the center position of the top end of the locking nut (4), a stud (401) is fixed at the center position of the bottom end of the locking nut (4), and the stud (401) is installed at the center position of the bottom end of the locking nut (4). The bottom end of the outer steel ring (13) passes through the upper bearing seat (3) and is threadedly connected to the lower bearing seat (2); an inner steel ring (7) is arranged inside the outer steel ring (13); ball bearings (8) are movably connected to the outer wall of the inner steel ring (7) at equal intervals; the outer wall of the ball bearings (8) touches the inner wall of the outer steel ring (13); a sealing ring (11) is arranged at one end of the inner steel ring (7); the diameter of the sealing ring (11) is equal to the diameter of the inner steel ring (7); and a first annular ring is arranged on the side of the inner steel ring (7) away from the sealing ring (11). The outer cover plate (5) has an inner wall of the first annular outer cover plate (5) in contact with the surface of the lower bearing seat (2) and the upper bearing seat (3), and first fastening bolts (6) are installed at equal intervals at the edge of the surface of the first annular outer cover plate (5), one end of the first fastening bolt (6) passes through the first annular outer cover plate (5) and is respectively threadedly connected to the surface of the lower bearing seat (2) and the upper bearing seat (3), and a second annular outer cover plate (9) is installed on the outer wall of the sealing ring (11) away from the inner steel ring (7), and the second ring Pin holes (901) are arranged at equal intervals at the edge positions inside the annular outer cover plate (9), and second fastening bolts (10) are installed on the outer wall of the second annular outer cover plate (9) at the positions of the pin holes (901). One end of the second fastening bolt (10) passes through the pin holes (901) and is threadedly connected to the outer walls of the lower bearing seat (2) and the upper bearing seat (3), respectively. An annular sealing plate (12) is arranged on the inner wall of one side of the outer steel ring (13), and the inner wall of the annular sealing plate (12) contacts the outer wall of the inner steel ring (7).

2. A dustproof bearing according to claim 1, characterized in that: Waist-shaped holes (101) are provided on both sides of the interior of the positioning seat (1), and both ends of the waist-shaped holes (101) extend to the outside of the positioning seat (1).

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