Bearing dust cover convenient to install

Abstract

The utility model discloses a bearing dust cover convenient to install, which comprises a ball bearing body and an outer support ring fixed on the peripheral surface of the outer ring of the ball bearing body, a convex plate is integrally formed on the outer wall of one side of the outer support ring, and shaft brackets are fixed on the two sides of the top end and the bottom end of the convex plate; a shaft type self-resetting structure is arranged between the two shaft brackets in the same Y-axis direction, a U-shaped sleeve is installed between the two shaft brackets through the shaft type self-resetting structure, and a pressing ring is integrally formed on the outer wall of the side, close to the ball bearing body, of the U-shaped sleeve. According to the utility model, the operation steps can be simplified, the probability of misoperation can be reduced, the problem that the ball bearing body and the dustproof cover monomer are damaged in the installation process can be avoided, and meanwhile, an operator does not need to spend too much time and energy on the disassembly and installation of the dustproof cover, so that the operator can quickly and effectively complete the bearing maintenance task.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a bearing dust cover which is easy to install. Background Art

[0002] The dust cover of the deep groove ball bearing is a key protective component. Its main function is to prevent the intrusion of dust, dirt and foreign matter inside the bearing, while maintaining the closed state of the grease in the bearing to extend the service life of the bearing and maintain its stable performance. Structurally, the dust cover is usually composed of a metal frame and a rubber sealing ring. The metal frame provides structural support and stability, while the rubber sealing ring ensures a tight fit with the outer ring of the bearing through its elasticity to form an effective sealing barrier. At present, the connection between the dust cover and the outer ring of the bearing is usually carried out in two main ways: pressing and rubber sealing. During the assembly process, the edge of the dust cover will be tightly pressed with the outer ring of the bearing through machining or special tools to ensure a complete seal and a stable connection between the two. At the same time, the rubber sealing ring is designed to fit precisely with the outer ring surface, which not only ensures the sealing performance, but also resists the influence of the external environment, such as erosion by water and chemicals. However, in the actual operation process, the dust cover method of pressing and rubber sealing requires the staff to use tweezers, calipers and other tools to remove the dust cover from between the outer ring and inner ring of the bearing. However, since the dust cover is usually connected to the outer ring of the bearing by pressing or precision fitting, it is necessary to be extremely careful when removing it. If the operation is improper or the clamping force is too large, it is easy to cause damage to the dust cover or the outer ring of the bearing, thereby affecting the sealing performance and life of the bearing. For equipment that uses a large number of bearings, it also brings troubles to the staff for bearing maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide a bearing dust cover that is easy to install. An outer support ring is fixed on the outer ring of the ball bearing body, and the top and bottom ends of the outer support ring are both installed with a pressure ring and a dust cover unit through an axle frame and an axial self-resetting structure. The dust cover unit is pressed between the inner and outer rings of the ball bearing body in the axial self-resetting structure to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing dust cover that is easy to install, comprising a ball bearing body and an outer support ring fixed to the outer circumference of the outer ring of the ball bearing body, a convex plate integrally formed on the outer wall of one side of the outer support ring, and shaft frames are fixed on both sides of the top and bottom ends of the convex plate, an axial self-resetting structure is arranged between the two shaft frames in the same Y-axis direction, a U-shaped sleeve is installed between the two shaft frames through the axial self-resetting structure, a pressure ring is integrally formed on the outer wall of the U-shaped sleeve on the side close to the ball bearing body, and a dust cover monomer for sealing the upper port or lower port of the ball bearing body is inlaid inside the pressure ring.

[0005] Preferably, the ball bearing body consists of an outer ring monomer fixed inside the ball bearing body, an inner ring monomer arranged inside the outer ring monomer, a retaining frame mounted on the outside of the inner ring monomer, and a plurality of steel balls embedded in the retaining frame, and the steel balls are located between the outer ring monomer and the inner ring monomer.

[0006] Preferably, an axial hole is provided inside the dust cover monomer, and the diameter of the axial hole is greater than or equal to the inner diameter of the inner ring monomer.

[0007] Preferably, an annular protrusion is integrally formed at the bottom end of the dust cover monomer, and the annular protrusion is located at the gap between the outer ring monomer and the inner ring monomer.

[0008] Preferably, the shaft-type self-resetting structure includes a rotating shaft rotatably installed between the two shaft frames in the same Y-axis direction and a torsion spring on the outer peripheral surface of the rotating shaft, and the U-shaped sleeve is fixed on the rotating shaft.

[0009] Preferably, the top end of one spiral turn of the torsion spring extends to the inside of the convex plate, and the top end of the other spiral turn of the torsion spring abuts against the bottom end of the U-shaped sleeve.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: this easy-to-install bearing dust cover is provided with a U-shaped sleeve and an axial self-resetting structure, so that the dust cover unit can be directly pressed between the inner and outer rings of the bearing body through these structural elements, without the need for additional tools, which can simplify the operating steps, reduce the probability of operating errors, and avoid damage to the ball bearing body and the dust cover unit during the installation process. At the same time, the operator does not need to spend too much time and energy on the removal and installation of the dust cover, so that the staff can complete the bearing maintenance tasks quickly and effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0013] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0014] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 5 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0016] Figure 6It is a three-dimensional structural schematic diagram of the utility model.

[0017] In the figure: 1. ball bearing body; 101. outer ring monomer; 102. retaining frame; 103. inner ring monomer; 104. steel ball; 2. outer support ring; 3. convex plate; 4. shaft frame; 5. shaft type self-resetting structure; 501. rotating shaft; 502. torsion spring; 6. U-shaped sleeve; 7. pressure ring; 8. dust cover monomer; 801. shaft hole; 802. annular protrusion. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-6 The utility model provides an embodiment: a bearing dust cover that is easy to install, comprising a ball bearing body 1 and an outer support ring 2 fixed to the outer peripheral surface of the outer ring of the ball bearing body 1, a convex plate 3 is integrally formed on the outer wall of one side of the outer support ring 2, and both sides of the top and bottom of the convex plate 3 are fixed with shaft frames 4, an axial self-resetting structure 5 is arranged between the two shaft frames 4 in the same Y-axis direction, a U-shaped sleeve 6 is installed between the two shaft frames 4 through the axial self-resetting structure 5, a pressure ring 7 is integrally formed on the outer wall of the U-shaped sleeve 6 close to the ball bearing body 1, and a dust cover monomer 8 for sealing the upper port or the lower port of the ball bearing body 1 is embedded in the inner part of the pressure ring 7;

[0020] By applying force to the dust cover monomer 8 through the pressure ring 7 and the shaft-type self-resetting structure 5, it can ensure its close connection with the outer ring and inner ring of the bearing, effectively prevent the intrusion of dust and dirt, maintain the closed state of the grease, thereby extending the service life of the bearing and improving the reliability and stability of the equipment;

[0021] The ball bearing body 1 comprises an outer ring monomer 101 fixed inside the ball bearing body 1, an inner ring monomer 103 arranged inside the outer ring monomer 101, a retainer 102 sleeved outside the inner ring monomer 103, and a plurality of steel balls 104 embedded inside the retainer 102, wherein the steel balls 104 are located between the outer ring monomer 101 and the inner ring monomer 103;

[0022] An axial hole 801 is provided inside the dust cover monomer 8, and the diameter of the axial hole 801 is greater than or equal to the inner diameter of the inner ring monomer 103. The outer support ring 2 can be fixed to the outer peripheral surface of the outer ring monomer 101 by welding, and the inner ring monomer 103 and the axial hole 801 are penetrated by the shaft body for installation. At this time, the shaft body can maintain a stable rotation state through the inner ring monomer 103, the retaining frame 102, and the steel ball 104;

[0023] The bottom end of the dust cover monomer 8 is integrally formed with an annular protrusion 802, and the annular protrusion 802 is located in the gap between the outer ring monomer 101 and the inner ring monomer 103. In order to ensure that the dust cover monomer 8 can better seal the ball bearing body 1, the bottom end of the dust cover monomer 8 is integrally formed with an axial hole 801. The staff can press the dust cover monomer 8 so that the axial hole 801 at the bottom end of the dust cover monomer 8 is embedded between the outer ring monomer 101 and the inner ring monomer 103, so that the ball bearing body 1 is in a sealed state as a whole, and external pollutants are prevented from entering the bearing through the gap between the inner ring and the outer ring;

[0024] The axial self-resetting structure 5 includes a rotating shaft 501 rotatably installed between two shaft frames 4 in the same Y-axis direction and a torsion spring 502 on the outer peripheral surface of the rotating shaft 501. The U-shaped sleeve 6 is fixed on the rotating shaft 501. The top of one spiral turn of the torsion spring 502 extends to the inside of the convex plate 3, and the top of the other spiral turn of the torsion spring 502 abuts against the bottom end of the U-shaped sleeve 6. When the dust cover unit 8 is removed from the ball bearing body 1, the staff manually flips up the pressure ring 7 and the dust cover unit 8, so that the pressure ring 7 and the dust cover unit 8 drive the U-shaped sleeve 6 to rotate around the rotating shaft 501 until the dust cover unit 8 is separated from the ball bearing body 1. During this process, the torsion spring 502 is in a compressed and deformed state.

[0025] When the embodiment of the present application is in use, the staff first installs the dust cover monomer 8 on the upper and lower ports of the ball bearing body 1, and the staff pre-inserts the dust cover monomer 8 into the inside of the pressing ring 7, so that the inner wall of the pressing ring 7 and the outer wall of the dust cover monomer 8 are mutually engaged, so as to complete the preliminary connection between the pressing ring 7 and the dust cover monomer 8, and then the staff loosens the pressing ring 7 so that the pressing ring 7 and the dust cover monomer 8 are no longer blocked by the user's hand, and the axial self-resetting structure 5 forces the pressing ring 7 and the dust cover monomer 8 to flip toward the direction of the ball bearing body 1 until the lower surface of the dust cover monomer 8 rests on the ball bearing body 1 The dust cover monomer 8 is used to cover the gap between the inner ring and the outer ring in the ball bearing body 1 to achieve the purpose of dust prevention. The dust cover is provided with a U-shaped sleeve 6 and an axial self-resetting structure 5, so that the dust cover monomer 8 can be directly pressed between the inner and outer rings of the bearing body through these structural elements. No additional tools are required, which can simplify the operation steps, reduce the probability of operating errors, and avoid damage to the ball bearing body 1 and the dust cover monomer 8 during the installation process. At the same time, the operator does not need to spend too much time and energy on the removal and installation of the dust cover, so that the staff can quickly and effectively complete the bearing maintenance task.

Claims

1. A bearing dust cover that is easy to install, characterized in that: The invention comprises a ball bearing body (1) and an outer support ring (2) fixed to the outer peripheral surface of the outer ring of the ball bearing body (1); a convex plate (3) is integrally formed on the outer wall of one side of the outer support ring (2); and shaft frames (4) are fixed on both sides of the top and bottom ends of the convex plate (3); an axial self-resetting structure (5) is arranged between the two shaft frames (4) in the same Y-axis direction; a U-shaped sleeve (6) is installed between the two shaft frames (4) via the axial self-resetting structure (5); a pressure ring (7) is integrally formed on the outer wall of one side of the U-shaped sleeve (6) close to the ball bearing body (1); and a dust cover monomer (8) for sealing the upper port or the lower port of the ball bearing body (1) is embedded inside the pressure ring (7).

2. The easy-to-install bearing dust cover according to claim 1, characterized in that: The ball bearing body (1) comprises an outer ring monomer (101) fixed inside the ball bearing body (1), an inner ring monomer (103) arranged inside the outer ring monomer (101), a retaining frame (102) sleeved on the outside of the inner ring monomer (103), and a plurality of steel balls (104) embedded in the retaining frame (102), wherein the steel balls (104) are located between the outer ring monomer (101) and the inner ring monomer (103).

3. The easy-to-install bearing dust cover according to claim 1, characterized in that: An axial hole (801) is provided inside the dust cover monomer (8), and the diameter of the axial hole (801) is greater than or equal to the inner diameter of the inner ring monomer (103).

4. The easy-to-install bearing dust cover according to claim 1 is characterized in that: An annular protrusion (802) is integrally formed at the bottom end of the dust cover monomer (8), and the annular protrusion (802) is located at the gap between the outer ring monomer (101) and the inner ring monomer (103).

5. The easy-to-install bearing dust cover according to claim 1, characterized in that: The shaft-type self-resetting structure (5) comprises a rotating shaft (501) rotatably mounted between the two shaft frames (4) in the same Y-axis direction and a torsion spring (502) on the outer peripheral surface of the rotating shaft (501); the U-shaped sleeve (6) is fixed on the rotating shaft (501).

6. The easy-to-install bearing dust cover according to claim 5, characterized in that: The top end of one spiral turn of the torsion spring (502) extends to the interior of the convex plate (3), and the top end of the other spiral turn of the torsion spring (502) abuts against the bottom end of the U-shaped sleeve (6).

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