Long-life bearing for agricultural machinery

Abstract

The utility model relates to bearing technical field, and concretely relates to a long life agricultural machinery bearing. In prior art, sealing lip directly and bearing's outer ring shoulder contact, surface roughness is high, wear is big, friction torque is big, life is short, maintenance and maintenance and replacement frequency are high, time -consuming and labor -intensive, cost is high. A kind of long life agricultural machinery bearing, bearing includes outer ring, inner ring, retainer and multiple steel ball, bearing is fixed on seat body by connecting piece, seat body is split type or integral type structure;Bearing is equipped with dust cover at both sides, and in the inside or outside of dust cover is equipped with oil thrower, oil thrower is pasted with outer ring, dust cover is pasted with oil thrower;Seat body and bearing are sealed by sealing element between them. The utility model simple and reasonable in structure, installation and disassembly are convenient and fast, and the wear of oil thrower and sealing lip is less, friction torque is small, and life is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and more specifically to a long-life agricultural machinery bearing. Background Technology

[0002] Agricultural machinery bearings operate in harsh environments, thus requiring them to possess a variety of superior performance characteristics to play a vital role in agricultural machinery. Firstly, a simple structural design is essential to ensure efficient machine utilization. Secondly, high precision, high performance, long lifespan, and high reliability are crucial: the precision, performance, lifespan, and reliability of the bearings directly impact the precision, performance, lifespan, and reliability of the main machine. Thirdly, they must adapt to harsh environments: agricultural machinery bearings must be able to operate under extremely challenging conditions, ranging from dry and abrasive environments to humid, corrosive, and highly polluted environments. Fourthly, they must withstand vibration and impact loads; agricultural machinery bearings must be able to continuously withstand sustained vibration and high impact loads. Fifthly, a low coefficient of friction allows for high-speed operation: agricultural machinery bearings with a low coefficient of friction can operate at high speeds. Sixthly, good sealing performance is essential: high-performance agricultural machinery bearings use nylon dust covers for sealing, requiring improved sealing performance to increase the service life of mounted agricultural machinery bearings.

[0003] However, in the existing technology, the sealing lip directly contacts the outer ring shoulder of the bearing, resulting in high surface roughness, large wear, large frictional torque, short life, frequent maintenance and replacement, which is time-consuming, labor-intensive and costly. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an agricultural machinery bearing with a reasonable structure, low friction torque, and long service life.

[0005] A long-life agricultural machinery bearing includes a housing and a bearing. The bearing includes an outer ring, an inner ring, a cage, and multiple steel balls. The bearing is fixed to the housing by a connector. The housing can be a split or integrated structure. The bearing has dust covers on both sides, and an oil slinger ring is provided on the inner or outer side of the dust cover. The oil slinger ring fits against the outer ring, and the dust cover fits against the oil slinger ring. The housing and the bearing are sealed by a seal.

[0006] This practical design features a simple and reasonable structure, making installation and disassembly convenient and quick. It also minimizes wear between the oil slinger ring and the sealing lip, resulting in low frictional torque and a significantly extended service life.

[0007] As a further improvement and supplement to the above solution, this utility model also includes the following additional technical features: The oil-slinging ring is made of 304 stainless steel. Stainless steel oil-slinging rings have very low surface roughness, resulting in less wear and lower frictional torque.

[0008] The dust cover consists of a rubber body and a skeleton. The rubber body has multiple sealing lips in both the radial and axial directions. The rubber body is made of NBR, and the skeleton is made of SPCC. SPCC is a high-strength steel material with good corrosion resistance, atmospheric corrosion resistance, stamping performance, and weldability. NBR has good oil resistance, wear resistance, heat resistance, and adhesion.

[0009] The sealing element is a retaining ring or an O-ring, with at least one retaining ring on one side and multiple O-rings positioned in different locations. This provides a good sealing effect.

[0010] The connecting component is either a retaining ring or a rivet. Connection and disassembly are convenient and quick.

[0011] The base is treated with powder coating or electroplating. It is not easy to rust and has a long service life.

[0012] The following advantages can be achieved by using this utility model: The structure is simple and reasonable, and installation and disassembly are convenient and quick. Furthermore, the surface roughness of the stainless steel oil-slinging ring is very low, resulting in less wear on the sealing lip and less frictional torque, thus greatly extending its service life. At the same time, the frequency of repair, maintenance, and replacement is reduced, lowering costs. Attached Figure Description

[0013] Figure 1 This is a front view of the first embodiment of this utility model.

[0014] Figure 2 This is a front view of the second embodiment of this utility model.

[0015] Figure 3 This is a left view of the second embodiment of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the oil-sparking ring 5 in this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the dust cover 7 in this utility model. Detailed Implementation

[0018] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figure 1-5 As shown, this utility model is a long-life agricultural machinery bearing.

[0020] The long-life agricultural machinery bearing described in this embodiment includes a housing 6 and a bearing. The bearing includes an outer ring 1, an inner ring 2, a cage 4, and multiple steel balls 3. The bearing is fixed to the housing 6 via a connector 9. The housing 6 can be a split or integrated structure. The bearing has dust covers 7 on both sides, and an oil slinger 5 is provided on the inner or outer side of the dust cover 7. The oil slinger 5 fits against the outer ring 1, and the dust cover 7 fits against the oil slinger 5. The housing 6 and the bearing are sealed by a seal 8. The oil slinger 5 is fitted onto the inner ring 2, and its outer side fits against the outer ring 1. This avoids direct contact between the dust cover 7 and the outer ring 1, which would cause excessive wear and shorten the bearing's lifespan. In the first embodiment, the housing 6 is an integrated structure; in the second embodiment, it is a split structure.

[0021] Furthermore, the oil-slinging ring 5 is made of stainless steel 304. The oil-slinging ring 5 is an open sleeve-type structure.

[0022] Furthermore, the dust cover 7 is composed of a rubber body 701 and a skeleton 702. The rubber body 701 has multiple sealing lips in both the radial and axial directions; in this embodiment, two sealing lips are provided axially and three sealing lips are provided radially. The rubber body 701 is made of NBR, and the skeleton 702 is made of SPCC. The skeleton 702 has a U-shaped structure and fits into the sealing lips on both sides and the inner ring 2 respectively.

[0023] Furthermore, the sealing element 8 is a retaining ring or an O-ring, with at least one retaining ring disposed on one side and multiple O-rings disposed at different positions. In the first embodiment, the retaining ring is disposed on the end face of the bearing, providing further sealing. In the second embodiment, O-rings are disposed on the outer ring 1 of the bearing and the inner side of the housing 6, providing sealing with O-rings at different positions.

[0024] Furthermore, the connecting member 9 is a retaining ring or a rivet. In the first embodiment, a retaining ring is used to fix the bearing. In the second embodiment, the bearing is fixed simultaneously with the disassembled seat body being fixed by a rivet.

[0025] Furthermore, the base 6 is subjected to powder coating or electroplating. In the first embodiment, the base 6 is made of QT450 material and is powder coated. In the second embodiment, the base 6 is formed by stamping and then electroplated.

[0026] When using this long-life agricultural machinery bearing, simply pass the corresponding drive shaft through the inner ring 1 and fix the seat 6 to the corresponding position on the relevant equipment.

[0027] The above are preferred embodiments of the present utility model and do not limit the scope of protection of the present utility model. Any modifications and improvements made by those skilled in the art based on the design concept of the present utility model should be considered within the scope of protection of the present utility model.

Claims

1. A long-life agricultural machinery bearing, comprising a housing (6) and a bearing, said bearing comprising an outer ring (1), an inner ring (2), a cage (4), and a plurality of steel balls (3), characterized in that: The bearing is fixed on the seat (6) by a connector (9). The seat (6) is a split or integrated structure. The bearing is provided with dust covers (7) on both sides, and an oil slinger (5) is provided on the inner or outer side of the dust cover (7). The oil slinger (5) fits against the outer ring (1), and the dust cover (7) fits against the oil slinger (5). The seat (6) and the bearing are sealed by a seal (8).

2. The long-life agricultural machinery bearing as described in claim 1, characterized in that: The oil-sparging ring (5) is made of stainless steel 304.

3. The long-life agricultural machinery bearing as described in claim 1, characterized in that: The dust cover (7) is composed of a rubber body (701) and a skeleton (702). The rubber body (701) is provided with multiple sealing lips in the radial and axial directions. The material of the rubber body (701) is NBR, and the material of the skeleton (702) is SPCC.

4. The long-life agricultural machinery bearing as described in claim 1, characterized in that: The sealing element (8) is a retaining ring or an O-ring, with the retaining ring at least on one side and multiple O-rings in different positions.

5. The long-life agricultural machinery bearing as described in claim 1, characterized in that: The connecting piece (9) is a retaining ring or a rivet.

6. The long-life agricultural machinery bearing as described in any one of claims 1-5, characterized in that: The base (6) is powder coated or electroplated.

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