Bearings for deep tillage machines

Abstract

The utility model discloses a bearing for a deep tilling machine, comprising a bearing outer ring, a bearing inner ring, a rolling element and two sealing elements. The bearing inner ring is coaxially arranged with the bearing outer ring and is located on the inner side of the bearing outer ring; the rolling element is arranged between the bearing inner ring and the bearing outer ring; the two sealing elements are respectively sleeved between the bearing outer ring and the bearing inner ring, and each sealing element comprises a sealing frame, a retaining ring and a dust cover. The sealing frame is installed between the bearing outer ring and the bearing inner ring to form a sealing area. The retaining ring is arranged on one side of the sealing frame, one side of the retaining ring abuts against one side of the bearing outer ring, and the other side of the retaining ring abuts against one side of the bearing inner ring. The dust cover is arranged on the side of the sealing element away from the sealing frame. By arranging the sealing frame, the retaining ring and the dust cover between the bearing inner ring and the bearing outer ring, external muddy water and dust can be effectively prevented from entering the bearing, and the bearing can be effectively kept clean. The leakage of grease can be prevented, oil consumption can be reduced, and the service life of the bearing can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of deep tillage machines, in particular to a bearing for deep tillage machines. Background Art

[0002] Bearings are one of the most important parts in machinery, used to support rotating parts and reduce friction during rotation. If impurities enter the bearings, it will seriously affect the normal operation of the bearings. Bearings are usually sealed with sealing rings to prevent impurities from entering the sealing rings.

[0003] At present, the sealing structure of sealed bearings on the market is mostly a sealing lip stuck in the groove of the inner and outer rings. This sealing structure is effective in blocking large particles and working in a relatively good working environment. However, for agricultural harvesters, especially agricultural harvester blade bearings, the use environment is very harsh. For example, agricultural machinery will generate a lot of dust and moisture when working, and the mud in the farmland is also a great challenge to the bearings. The assembly position of the agricultural machinery blade bearing is not a closed cavity. Coupled with the harsh environment, the bearing is easily damaged. Utility Model Content

[0004] The main purpose of the utility model is to propose a bearing for a deep tiller, which aims to effectively prevent external mud, water and dust from entering the interior of the bearing and effectively keep the interior of the bearing clean by arranging a sealing frame, a retaining ring and a dust cover between the inner ring of the bearing and the outer ring of the bearing, and prevent grease from leaking out, thereby reducing oil consumption and increasing the service life of the bearing.

[0005] In order to achieve the above-mentioned purpose, the bearing for deep tilling machine proposed in the utility model comprises:

[0006] Bearing outer ring;

[0007] A bearing inner ring is coaxially arranged with the bearing outer ring and is located on the inner side of the bearing outer ring;

[0008] A rolling body, wherein the rolling body is arranged between the inner ring of the bearing and the outer ring of the bearing;

[0009] Two seals, the two seals are respectively sleeved between the bearing outer ring and the bearing inner ring, each seal comprises a seal frame, a retaining ring and a dust cover, the seal frame is installed between the bearing outer ring and the bearing inner ring to form a sealing area, the retaining ring is arranged on one side of the seal frame, one side of the retaining ring abuts against one side of the bearing outer ring, and the other side of the retaining ring abuts against one side of the bearing inner ring, and the dust cover is arranged on the side of the seal away from the seal frame.

[0010] In an optional embodiment, the bearing outer ring is provided with a sealing lip on the side facing the bearing inner ring, and the sealing frame includes a first sealing portion and a second sealing portion connected to each other, the first sealing portion is embedded in the sealing lip, and the second sealing portion abuts against the side of the bearing inner ring.

[0011] In an optional embodiment, the second sealing portion includes a plurality of stop segments, end surfaces of the plurality of stop segments abut against the inner ring of the bearing, and stop grooves are formed between adjacent stop segments.

[0012] In an optional embodiment, the sealing frame further includes an abutting portion, the abutting portion is obliquely connected to a side of the first sealing portion away from the second sealing portion, and the abutting portion abuts against the retaining ring at an end away from the first sealing portion.

[0013] In an optional embodiment, the dust cover is made of low carbon steel.

[0014] In an optional embodiment, the retaining ring is made of rubber.

[0015] In an optional embodiment, the outer ring of the bearing and the inner ring of the bearing are both provided with annular grooves on the facing sides, and the rolling body is at least partially embedded in the annular grooves.

[0016] In an optional embodiment, the sealing area is filled with grease.

[0017] The deep tiller bearing of the utility model technical solution comprises a bearing outer ring, a bearing inner ring, a rolling body and two sealing members, wherein the bearing inner ring is coaxially arranged with the bearing outer ring and is located on the inner side of the bearing outer ring; the rolling body is arranged between the bearing inner ring and the bearing outer ring; the two sealing members are respectively sleeved between the bearing outer ring and the bearing inner ring, each of the sealing members comprises a sealing frame, a retaining ring and a dust cover, the sealing frame is installed between the bearing outer ring and the bearing inner ring to form a sealing area, the retaining ring is arranged on one side of the sealing frame, one side of the retaining ring abuts against one side of the bearing outer ring, and the other side of the retaining ring abuts against one side of the bearing inner ring, and the dust cover is arranged on the side of the sealing member away from the sealing frame, and by arranging the sealing frame, the retaining ring and the dust cover between the bearing inner ring and the bearing outer ring, it is possible to effectively prevent external muddy water and dust from entering the interior of the bearing, effectively keep the interior of the bearing clean, prevent grease from leaking out, reduce oil consumption, and increase the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of a bearing for a deep tiller according to the utility model.

[0020] Description of Figure Numbers:

[0021] Label name Label name 10 Bearings for deep tillage machines 411 First sealing part 1 Bearing outer ring 412 Second sealing part 11 Sealing lip 413 Stop section 2 Bearing inner ring 4131 Stop groove 3 Rolling element 414 Butt part 4 Seals 42 Retaining Ring 41 Sealing rack 43 Dust cover

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] 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.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] The utility model proposes a bearing for a deep tilling machine, which aims to effectively prevent external mud, water and dust from entering the interior of the bearing and effectively keep the interior of the bearing clean by arranging a sealing frame, a retaining ring and a dust cover between the inner ring of the bearing and the outer ring of the bearing, and can also prevent the leakage of grease, reduce oil consumption and increase the service life of the bearing.

[0028] Please refer to Figure 1 The specific structure of the deep tiller bearing 10 proposed in the utility model will be described in a specific embodiment below. In one embodiment of the utility model, the deep tiller bearing 10 includes:

[0029] Bearing outer ring 1;

[0030] The bearing inner ring 2 is coaxially arranged with the bearing outer ring 1 and is located on the inner side of the bearing outer ring 1;

[0031] A rolling body 3, wherein the rolling body 3 is arranged between the bearing inner ring 2 and the bearing outer ring 1;

[0032] Two seals 4, the two seals 4 are respectively sleeved between the bearing outer ring 1 and the bearing inner ring 2, each seal 4 includes a seal frame 41, a retaining ring 42 and a dust cover 43, the seal frame 41 is installed between the bearing outer ring 1 and the bearing inner ring 2 to form a sealing area, the retaining ring 42 is arranged on one side of the seal frame 41, one side of the retaining ring 42 abuts against one side of the bearing outer ring 1, and the other side of the retaining ring 42 abuts against one side of the bearing inner ring 2, and the dust cover 43 is arranged on the side of the seal 4 away from the seal frame 41.

[0033] As can be known, the bearing comprises a bearing inner ring 2 , a bearing outer ring 1 and rolling elements 3 , wherein the rolling elements 3 are arranged between the bearing inner ring 2 and the bearing outer ring 1 .

[0034] In this embodiment, in order to improve the sealing performance of the bearing inner ring 2 and the bearing outer ring 1, the deep tiller bearing 10 also includes two seals 4, each seal 4 is respectively sleeved between the bearing inner ring 2 and the bearing outer ring 1, and each seal 4 includes a seal frame 41, a retaining ring 42 and a dust cover 43, wherein the two ends of the seal frame 41 are respectively abutted between the bearing inner ring 2 and the bearing outer ring 1, and form a sealing area with the bearing inner ring 2 and the bearing outer ring 1. The retaining ring 42 is arranged on one side of the seal 4, and one end of the seal 4 is abutted against one side of the bearing outer ring 1, and the other side of the retaining ring 42 is abutted against one side of the bearing inner ring 2, so as to seal the seal frame 41 between the bearing inner ring 2 and the bearing outer ring 1. At the same time, the dust cover 43 is arranged on the side of the seal 4 away from the seal frame 41, and one side of the dust cover 43 is abutted on the bearing inner ring 2, and the dust cover 43 can further seal the seal frame 41 and the retaining ring 42 between the bearing inner ring 2 and the bearing outer ring 1. By arranging a sealing frame 41, a retaining ring 42 and a dust cover 43 between the bearing inner ring 2 and the bearing outer ring 1, it is possible to effectively prevent external mud, water and dust from entering the bearing, effectively keep the bearing clean, prevent grease from leaking out, reduce oil consumption and increase the service life of the bearing.

[0035] Please refer to Figure 1 In an optional embodiment, the bearing outer ring 1 is provided with a sealing lip 11 on the side facing the bearing inner ring 2, and the sealing frame 41 includes a first sealing portion 411 and a second sealing portion 412 connected to each other, the first sealing portion 411 is embedded in the sealing lip 11, and the second sealing portion 412 abuts against the side of the bearing inner ring 2. Such an arrangement improves the sealing performance of the sealing area and ensures the normal use of the rolling element 3.

[0036] In this embodiment, in order to facilitate the connection between the bearing outer ring 1 and the sealing frame 41, a sealing lip 11 is opened on the side of the bearing outer ring 1 facing the bearing inner ring 2, and the sealing frame 41 includes a first sealing portion 411 and a second sealing portion 412 connected to each other, wherein the first sealing portion 411 is embedded in the sealing lip 11, and the second sealing portion 412 abuts against the side of the bearing inner ring 2, thereby forming an effective seal between the bearing inner ring 2 and the bearing outer ring 1, while ensuring the sealing effect, it also ensures that the connection between the sealing frame 41 and the bearing inner ring 2 and the bearing outer ring 1 is stable.

[0037] Please refer to Figure 1 In an optional embodiment, the second sealing portion 412 includes a plurality of stop segments 413, the end faces of the plurality of stop segments 413 abut against the bearing inner ring 2, and stop grooves 4131 are formed between adjacent stop segments 413, thereby effectively preventing dust and the like from entering the sealing area.

[0038] In this embodiment, the second sealing portion 412 includes a plurality of stop segments 413, and the end faces of the plurality of stop segments 413 are all in contact with the side surface of the bearing inner ring 2, and a stop groove 4131 is formed between two adjacent stop segments 413. While the stop segment 413 is stably in contact with the side surface of the bearing inner ring 2, the stop groove 4131 can also effectively block dust and the like.

[0039] Please refer to Figure 1 In an optional embodiment, the sealing frame 41 further includes an abutment portion 414, which is obliquely connected to a side of the first sealing portion 411 away from the second sealing portion 412, and the abutment portion 414 abuts against the retaining ring 42 at one end away from the first sealing portion 411, thereby further improving the installation stability of the sealing frame 41.

[0040] In this embodiment, in order to improve the installation stability of the sealing frame 41, the sealing frame 41 also includes an abutment portion 414, which is obliquely connected to the side of the first sealing portion 411 away from the second sealing portion 412, and the abutment portion 414 abuts against the side of the retaining ring 42 at the end away from the first sealing end, thereby ensuring the connection stability of the sealing frame 41 between the bearing inner ring 2 and the bearing outer ring 1, and ensuring the sealing effect of the sealing frame 41.

[0041] Please refer to Figure 1 In an optional embodiment, the dust cover 43 is made of low-carbon steel. Low-carbon steel has good plasticity and toughness. While playing a supporting role, it is not easy to crack during use, thereby improving structural stability.

[0042] Please refer to Figure 1 In an optional embodiment, the retaining ring 42 is made of rubber, which has the characteristics of excellent oil resistance, high wear resistance, good heat resistance, strong adhesion, good water resistance, air tightness and excellent bonding performance, which can greatly enhance the sealing performance of the retaining ring 42.

[0043] Please refer to Figure 1 In an optional embodiment, the bearing outer ring 1 and the bearing inner ring 2 are both provided with annular grooves on the facing sides, and the rolling body 3 is at least partially embedded in the annular groove. Such a configuration facilitates reducing the friction between the rolling body 3 and the bearing inner ring 2 and the bearing outer ring 1.

[0044] Please refer to Figure 1 In an optional embodiment, the sealing area is filled with grease to further reduce the friction between the rolling element 3 and the bearing inner ring 2 and the bearing outer ring 1.

[0045] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A bearing for a deep tillage machine, characterized in that: The bearing for deep tilling machine comprises: Bearing outer ring; A bearing inner ring is coaxially arranged with the bearing outer ring and is located on the inner side of the bearing outer ring; A rolling body, wherein the rolling body is arranged between the inner ring of the bearing and the outer ring of the bearing; Two seals, the two seals are respectively sleeved between the bearing outer ring and the bearing inner ring, each seal comprises a seal frame, a retaining ring and a dust cover, the seal frame is installed between the bearing outer ring and the bearing inner ring to form a sealing area, the retaining ring is arranged on one side of the seal frame, one side of the retaining ring abuts against one side of the bearing outer ring, and the other side of the retaining ring abuts against one side of the bearing inner ring, and the dust cover is arranged on the side of the seal away from the seal frame.

2. The bearing for a deep tiller according to claim 1, characterized in that: The bearing outer ring is provided with a sealing lip on the side facing the bearing inner ring, and the sealing frame includes a first sealing portion and a second sealing portion connected to each other, wherein the first sealing portion is embedded in the sealing lip, and the second sealing portion abuts against the side of the bearing inner ring.

3. The bearing for a deep tiller according to claim 2, characterized in that: The second sealing portion includes a plurality of stop segments, end surfaces of the plurality of stop segments abut against the bearing inner ring, and stop grooves are formed between adjacent stop segments.

4. The bearing for a deep tiller according to claim 3, characterized in that: The sealing frame further comprises an abutting portion, which is obliquely connected to a side of the first sealing portion away from the second sealing portion, and the abutting portion abuts against the retaining ring at an end away from the first sealing portion.

5. The bearing for a deep tiller according to claim 1, characterized in that: The dust cover is made of low carbon steel.

6. The bearing for a deep tiller according to claim 1, characterized in that: The retaining ring is made of rubber.

7. The deep tiller bearing according to claim 1, characterized in that: The outer ring of the bearing and the inner ring of the bearing are both provided with annular grooves on the facing sides, and the rolling body is at least partially embedded in the annular grooves.

8. The deep tiller bearing according to claim 1, characterized in that: The sealing area is filled with grease.

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