Bearing dust cover and bearing assembly

Abstract

The utility model discloses a bearing dust cover which comprises a shaft seat assembly and an end cover assembly, the shaft seat assembly comprises a base, a bearing bin is fixed on the upper end face of the base, mounting holes are respectively formed in two sides of the base, through grooves are respectively formed in two sides of the base, clamping grooves are respectively formed in the front end and the rear end of the bearing bin, and a threaded hole is formed in the upper end face of the bearing bin. The end cover assembly comprises a connecting plate, and a dustproof end cover is fixed to the upper end face of the connecting plate. According to the bearing, when the dustproof end cover and the bearing are assembled, the connecting gap between the dustproof end cover and the bearing bin is sealed through the rubber ring, dust can be prevented from entering the bearing from the gap, the bearing has a better dustproof effect, and the end cover assembly and the bearing assembly can be conveniently assembled and disassembled; and when the bearing is clamped in the bearing bin, the connection of the bearing and the bearing bin can be more stable through the extrusion of the fastening bolt.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing equipment, in particular to a bearing dust cover and a bearing assembly. Background Art

[0002] The bearing assembly is the general term for the various parts that make up the bearing. The bearing is a mechanical element used to reduce rotational friction and support rotational motion. It consists of an inner ring, an outer ring, rolling elements (such as balls or rollers) and a cage. The inner ring is the part connected to the shaft, and the outer ring is the part connected to the coordinates. The rolling elements roll between the inner and outer rings, and the cage is used to maintain the spacing of the rolling elements. These components are usually made of high-quality steel and are precision machined and heat-treated to ensure that the bearing has good wear resistance and durability. The bearing dust cover is a device used to protect the bearing, usually located on the end face of the outer ring of the bearing. Its main function is to block dust, moisture, foreign matter, etc. from entering the bearing to reduce bearing wear and failure. The bearing dust cover is usually made of rubber, plastic or metal materials and has good sealing and wear resistance.

[0003] The patent document with publication number CN206246542U discloses a dust cover for a dustproof bearing, including a bearing outer ring, which is connected to the bearing inner ring via a ball, and dust covers are provided on both sides of the ball; the bearing outer ring is also provided with a connecting ring groove; the bearing inner ring is also provided with a clamping groove; the dust cover includes an elastic dustproof body, the outer edge of the elastic dustproof body is distributed with a holding structure, and the holding structure is movably connected with a friction-reducing ball, and the inner edge of the elastic dustproof body is provided with an elliptical fixing component; the friction-reducing ball is connected to the connecting ring groove; the elliptical fixing component is connected to the clamping groove; the holding structures are connected by an oil channel, and an oil storage bin is provided on the oil channel, and the oil storage bin is connected to the oil inlet.

[0004] In the above device, although it has the characteristics of good dustproof effect, long service life and easy replacement, during use, the dustproof effect is poor because the dust cover is only installed on the two end faces of the bearing for shielding. Dust will enter the bearing from the gap between the end cover and the bearing. Long-term dust accumulation affects the rotation of the bearing. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the existing bearing dust cover and bearing assembly, which only shield the two end faces of the bearing by installing the dust cover, but the dustproof effect is poor, and dust will enter the bearing from the gap between the end cover and the bearing, and long-term dust accumulation will affect the rotation of the bearing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bearing dust cover comprises a shaft seat assembly and an end cover assembly, wherein the shaft seat assembly comprises a base, a bearing bin is fixed on the upper end surface of the base, mounting holes are respectively provided on both sides of the base, through grooves are respectively provided on both sides of the base, clamping grooves are respectively provided on the front and rear ends of the bearing bin, a threaded hole is provided on the upper end surface of the bearing bin, and a fastening bolt is threadedly engaged with the inner cavity of the threaded hole;

[0008] The end cover assembly includes a connecting plate, and a dustproof end cover is fixed on the upper end surface of the connecting plate, an annular groove is fixed to one end of the dustproof end cover close to the center line of the shaft seat assembly, a rubber ring is sleeved in the inner cavity of the annular groove, a screw is sleeved through the inner cavity of the through groove, and nuts are threadedly engaged with each other at both ends of the screw, and a connecting bolt threadedly engaged with the surface of the bearing magazine is penetrated by the surface of the dustproof end cover.

[0009] As a further description of the above technical solution:

[0010] The dustproof end cover is connected to the bearing chamber through bolts to form a fixable structure.

[0011] As a further description of the above technical solution:

[0012] The nut is movably connected to the surface of the connecting plate, and the screw rod is through-and-through sleeved with the connecting plate.

[0013] As a further description of the above technical solution:

[0014] The connecting plate forms a fastenable structure with the base through the nut, the screw rod and the base.

[0015] As a further description of the above technical solution:

[0016] The dustproof end cover is movably connected to the surface of the bearing chamber, and the rubber ring is sleeved with the inner cavity of the card slot.

[0017] A bearing assembly includes a bearing assembly, wherein the bearing assembly includes a bearing outer ring, and the inner cavity of the bearing outer ring is provided with a bearing inner ring.

[0018] As a further description of the above technical solution:

[0019] A retainer is installed between the outer ring of the bearing and the inner ring of the bearing, and a ball bearing is installed in the inner cavity of the retainer.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0021] In the utility model, when the dustproof end cover and the bearing are assembled, the rubber ring is used to seal the connecting gap between the dustproof end cover and the bearing compartment, which can prevent dust from entering the bearing through the gap, so that the bearing has a better dustproof effect, and the end cover assembly and the bearing assembly can be easily assembled and disassembled, and when the bearing is clamped in the bearing compartment, the connection can be more stable through the extrusion of the tightening bolts. In summary, the problems in the background technology are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a bearing dust cover and a bearing assembly from the front view in the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model in which the central shaft seat assembly and the bearing assembly are separated;

[0024] Figure 3 It is a structural schematic diagram of a bearing dust cover and a bearing assembly explosion in the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the dustproof end cover in the utility model from a rear view.

[0026] Legend:

[0027] 1. Shaft seat assembly; 101. Base; 102. Bearing compartment; 103. Mounting hole; 104. Through slot; 105. Slot; 106. Threaded hole; 107. Fastening bolt; 2. Bearing assembly; 201. Bearing outer ring; 202. Bearing inner ring; 203. Cage; 204. Ball; 3. End cover assembly; 301. Connecting plate; 302. Dustproof end cover; 303. Annular groove; 304. Rubber ring; 305. Screw; 306. Nut; 307. Connecting bolt. DETAILED DESCRIPTION

[0028] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0029] Reference Figure 1-Figure 4A bearing dust cover includes a shaft seat assembly 1 and an end cover assembly 3. The shaft seat assembly 1 includes a base 101. A bearing bin 102 is fixed to the upper end surface of the base 101. Mounting holes 103 are respectively provided on both sides of the base 101. Through grooves 104 are respectively provided on both sides of the base 101. Card slots 105 are respectively provided at the front and rear ends of the bearing bin 102. A threaded hole 106 is provided on the upper end surface of the bearing bin 102. A fastening bolt 107 is threadedly engaged with the inner cavity of the threaded hole 106.

[0030] The end cover assembly 3 includes a connecting plate 301, and a dustproof end cover 302 is fixed on the upper end surface of the connecting plate 301. An annular groove 303 is fixed on one end of the dustproof end cover 302 close to the center line of the shaft seat assembly 1. A rubber ring 304 is sleeved in the inner cavity of the annular groove 303, and a screw 305 is sleeved through the inner cavity of the through groove 104, and nuts 306 are respectively threadedly engaged at both ends of the screw 305. A connecting bolt 307 threadedly engaged with the surface of the bearing chamber 102 is penetrated through the surface of the dustproof end cover 302;

[0031] The shaft seat assembly 1 can be assembled in the installation area by passing the bolt through the installation hole 103;

[0032] Then, the rubber ring 304 is sleeved into the annular groove 303 of the dustproof end cover 302, and the dustproof end cover 302 is attached to the surface of the bearing bin 102. At this time, the rubber ring 304 is clamped into the clamping grooves 105 at the front and rear ends of the bearing bin 102, and the rubber ring 304 is used to seal the connection gap between the dustproof end cover 302 and the bearing bin 102;

[0033] The screw rod 305 is passed through the through slot 104, and the nut 306 is manually threadedly engaged with the screw rod 305. The nut 306 fixes the connecting plate 301, and the connecting bolt 307 is manually passed through the dustproof end cover 302 and threadedly engaged with the bearing chamber 102, so that the dustproof end cover 302 is tightened and assembled.

[0034] Furthermore, the dustproof end cover 302 forms a fixable structure with the bearing housing 102 through the connecting bolts 307 .

[0035] Furthermore, the nut 306 is movably connected to the surface of the connecting plate 301 , and the screw rod 305 is penetrated and sleeved with the connecting plate 301 .

[0036] Furthermore, the connecting plate 301 forms a fastenable structure with the base 101 through the nut 306 and the screw rod 305 .

[0037] Furthermore, the dustproof end cover 302 is movably connected to the surface of the bearing chamber 102 , and the rubber ring 304 is sleeved with the inner cavity of the slot 105 .

[0038] A bearing assembly includes a bearing assembly 2, wherein the bearing assembly 2 includes a bearing outer ring 201, a bearing inner ring 202 is arranged in the inner cavity of the bearing outer ring 201, a retaining frame 203 is installed between the bearing outer ring 201 and the bearing inner ring 202, and a ball 204 is installed in the inner cavity of the retaining frame 203, the bearing outer ring 201 is clamped in the inner cavity of the bearing chamber 102, and then the fastening bolt 107 is manually passed through the threaded hole 106 and rotated to squeeze the upper end of the bearing outer ring 201 to fasten it in the inner cavity of the bearing chamber 102.

[0039] Working principle: When in use, first clamp the bearing outer ring 201 into the inner cavity of the bearing bin 102, then manually pass the fastening bolt 107 through the threaded hole 106, rotate it to squeeze the upper end of the bearing outer ring 201, and fasten it to the inner cavity of the bearing bin 102, pass the bolt through the mounting hole 103, and assemble the shaft seat assembly 1 in the mounting area, then sleeve the rubber ring 304 into the annular groove 303 of the dust cover 302, and fit the dust cover 302 to the surface of the bearing bin 102. At this time, the rubber ring 304 04 is clamped in the card slot 105 at the front and rear ends of the bearing magazine 102, and the connection gap between the dustproof end cover 302 and the bearing magazine 102 is sealed by the rubber ring 304. The screw 305 is passed through the through slot 104, and the nut 306 is manually threadedly engaged with the screw 305. The nut 306 fixes the connecting plate 301, and then the connecting bolt 307 is manually passed through the dustproof end cover 302 and threadedly engaged with the bearing magazine 102, so that the dustproof end cover 302 is tightened and assembled, thus completing the working principle of the utility model.

[0040] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A bearing dust cover, comprising a shaft seat assembly (1) and an end cover assembly (3), characterized in that: The shaft seat assembly (1) comprises a base (101), a bearing housing (102) is fixed on the upper end surface of the base (101), mounting holes (103) are respectively provided on both sides of the base (101), and through grooves (104) are respectively provided on both sides of the base (101), a clamping groove (105) is respectively provided at the front and rear ends of the bearing housing (102), a threaded hole (106) is provided on the upper end surface of the bearing housing (102), and a fastening bolt (107) is threadedly engaged in the inner cavity of the threaded hole (106); The end cover assembly (3) includes a connecting plate (301), and a dustproof end cover (302) is fixed on the upper end surface of the connecting plate (301); an annular groove (303) is fixed on one end of the dustproof end cover (302) close to the center line of the shaft seat assembly (1); a rubber ring (304) is sleeved in the inner cavity of the annular groove (303); a screw rod (305) is sleeved in the inner cavity of the through groove (104), and nuts (306) are respectively threadedly engaged at both ends of the screw rod (305); and a connecting bolt (307) threadedly engaged with the surface of the bearing chamber (102) is penetrated through the surface of the dustproof end cover (302).

2. A bearing dust cover according to claim 1, characterized in that: The dustproof end cover (302) forms a fixable structure with the bearing housing (102) via connecting bolts (307).

3. A bearing dust cover according to claim 1, characterized in that: The nut (306) is movably connected to the surface of the connecting plate (301), and the screw rod (305) is inserted and sleeved into the connecting plate (301).

4. A bearing dust cover according to claim 1, characterized in that: The connecting plate (301) forms a fastenable structure with the base (101) through the nut (306) and the screw rod (305).

5. A bearing dust cover according to claim 1, characterized in that: The dustproof end cover (302) is movably connected to the surface of the bearing chamber (102), and the rubber ring (304) is sleeved with the inner cavity of the slot (105).

6. A bearing assembly, comprising a bearing assembly (2), characterized in that: The bearing assembly (2) comprises a bearing outer ring (201), and a bearing inner ring (202) is arranged in the inner cavity of the bearing outer ring (201).

7. A bearing assembly according to claim 6, characterized in that: A retaining frame (203) is installed between the bearing outer ring (201) and the bearing inner ring (202), and a ball (204) is installed in the inner cavity of the retaining frame (203).

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