Bearing for seeder

Abstract

The utility model relates to the field of bearings, and discloses a seeder bearing which comprises a bearing outer ring, a bearing inner ring is arranged in the middle of the bearing outer ring in a penetrating mode, hexagonal holes are formed in the front end and the rear end of the bearing inner ring, three threaded grooves are formed in the outer surface of the bearing inner ring, and the three threaded grooves are distributed in the outer side of the bearing inner ring in an annular array mode. Three threaded grooves are formed in the bearing, jackscrews are in threaded connection with the interiors of the three threaded grooves respectively, and the outer ends of the three jackscrews are arranged on the outer sides of the threaded grooves respectively, so that the inner ends of the three jackscrews are locked on the surface of the furrowing transmission part of the seeding machine by tightening the three jackscrews respectively in the process that the bearing is connected with the furrowing transmission part of the seeding machine, and the furrowing transmission part of the seeding machine is connected with the furrowing transmission part of the seeding machine. The axial movement of the bearing is prevented, the loosening of the bearing caused by vibration and impact in the operation process of the seeding machine is favorably prevented, and the hexagonal holes are formed in the front side and the rear side of the inner ring of the bearing, so that the furrowing transmission part of the seeding machine and the bearing are more convenient to mount and dismount.

Description

Technical Field

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

[0002] Durable bearings for seed drills refer to bearings with high durability and reliability used in seed drills. Bearings are generally made of high-quality materials, such as high-carbon steel or stainless steel, and may undergo special treatments, such as plating technology, to improve their corrosion resistance and wear resistance.

[0003] According to the Chinese authorized patent announcement number: CN217898508U, a bearing and a seed drill with the bearing are disclosed, which relate to the field of bearing technology, and the main purpose is to provide a bearing structure with better anti-pollution performance and more durability. The bearing includes an outer ring, an inner ring and a ball; a first groove is provided on the inner side wall of the outer ring, and a second groove is provided on the outer side wall of the inner ring. The ball is connected to the outer ring and the inner ring through the first groove and the second groove, and two contact points are formed between the ball and the first groove; and / or, two contact points are formed between the ball and the second groove. Since there are two contact points between the ball and the first groove and / or the second groove, it can not only effectively prevent the ball from getting stuck when moving along the first groove and / or the second groove, but also effectively improve the bearing capacity of the bearing, and also enable the bearing to have better axial and radial composite load capacity. However, the bearing still has shortcomings. Since the seeder will have greater vibration and impact during operation, the bearing may become loose after being subjected to vibration and impact for a long time, affecting the accuracy and efficiency of sowing. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a bearing for a seeder, which solves the problem that due to the large vibration and impact during the operation of the seeder, the bearing may become loose after being subjected to vibration and impact for a long time, thereby affecting the accuracy of sowing and the efficiency of operation.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a bearing for a seed drill, comprising a bearing outer ring, a bearing inner ring is arranged through the middle of the bearing outer ring, hexagonal holes are opened inside the front and rear ends of the bearing inner ring, three thread grooves are opened on the outer surface of the bearing inner ring, the three thread grooves are distributed in an annular array on the outer side of the bearing inner ring, the three thread grooves are threadedly connected with top screws, and the outer ends of the three top screws are arranged on the outer side of the thread groove;

[0006] An inner shaft groove is arranged between the bearing outer ring and the bearing inner ring, and fitting grooves are opened between the front and rear sides of the inner shaft groove and the bearing outer ring, and a bow-fitting portion is embedded in the fitting groove, and the bow-fitting portion is arranged on the outside of the sealing ring, and the outside of the sealing ring is fitted on the inner wall surface of the bearing outer ring, and the side of the sealing ring away from the bearing outer ring is fitted on the outside of the bearing inner ring.

[0007] Preferably, three sealing lips are arranged inside the sealing ring, the outer sides of the three sealing lips are fixedly connected to the inner side of the sealing ring, and the inner sides of the three sealing lips are fitted on the outer side of the bearing inner ring.

[0008] Preferably, retaining ring grooves are provided on both upper and lower sides of the outer surface of the outer ring of the bearing.

[0009] Preferably, a steel ball is embedded in the middle of the inner shaft groove.

[0010] Preferably, the contact between the steel ball and the inner shaft groove is angular contact.

[0011] Preferably, a retainer is sleeved on the outer side of the middle part of the steel ball.

[0012] Preferably, the bearing outer ring and the bearing inner ring are both made of stainless steel.

[0013] Beneficial Effects

[0014] The utility model provides a bearing for a seed drill. Compared with the prior art, it has the following advantages:

[0015] Beneficial effects:

[0016] 1. In the utility model, by setting the top screw, in the process of connecting the bearing and the seeder ditching transmission part, by tightening the three top screws respectively, the inner ends of the three top screws are locked to the surface of the seeder ditching transmission part to prevent the bearing from axial movement, which helps to prevent the bearing from loosening due to vibration and impact during the operation of the seeder, and the front and rear sides of the inner ring of the bearing are provided with hexagonal holes, which makes the installation and disassembly of the seeder ditching transmission part and the bearing more convenient;

[0017] 2. In the utility model, a sealing ring is provided, and the outer side of the sealing ring is fitted on the inner wall surface of the outer ring of the bearing to form a tight seal, which effectively prevents moisture, dust and other foreign matter from entering the interior of the bearing and protects the bearing from the external environment. In addition, the three sealing lips provided inside the sealing ring can evenly distribute the sealing pressure, thereby improving the reliability of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a bearing for a seed drill proposed by the utility model;

[0019] Figure 2This is a side sectional view of a bearing for a seed drill proposed by the utility model;

[0020] Figure 3 This is a front view of a bearing for a seed drill proposed by the utility model;

[0021] Figure 4 A bearing for a seed drill proposed by the utility model Figure 2 A is an enlarged view of the middle image.

[0022] Legend:

[0023] 1. Bearing outer ring; 2. Bearing inner ring; 3. Hexagonal hole; 4. Top screw; 5. Steel ball; 6. Circlip groove; 7. Retainer; 8. Sealing ring; 9. Sealing lip; 10. Inner shaft groove; 11. Fitting groove; 12. Bow joint; 13. Thread groove. 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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-Figure 4 The utility model provides two technical solutions, which specifically include the following embodiments:

[0026] Embodiment 1:

[0027] A bearing for a seed drill comprises a bearing outer ring 1, a bearing inner ring 2 is arranged through the middle of the bearing outer ring 1, hexagonal holes 3 are provided inside the front and rear ends of the bearing inner ring 2, three thread grooves 13 are provided on the outer surface of the bearing inner ring 2, the three thread grooves 13 are distributed in a circular array on the outer side of the bearing inner ring 2, the three thread grooves 13 are threadedly connected with top screws 4, and the outer ends of the three top screws 4 are arranged on the outer side of the thread grooves 13, the bearing outer ring 1 and the bearing inner ring 2 are both made of stainless steel, and stainless steel has high corrosion resistance. The bearing can withstand various harsh conditions, such as soil, moisture, etc., during long-term operation of the seed drill, thereby improving the durability of the bearing. It should be noted that the bearing can be installed in the drive mechanism, transmission belt or other moving parts of the seed drill.

[0028] During operation, in the process of connecting the bearing and the seeder trenching transmission part, the inner ends of the three top screws 4 are locked to the surface of the seeder trenching transmission part by tightening the three top screws 4 respectively to prevent the bearing from axial movement, which helps to prevent the bearing from loosening due to vibration and impact during the operation of the seeder. In addition, hexagonal holes 3 are provided on the front and rear sides of the bearing inner ring 2, making the installation and disassembly of the seeder trenching transmission part and the bearing more convenient.

[0029] Embodiment 2:

[0030] On the basis of the first embodiment, a fitting groove 11 is provided between the front and rear sides of the inner shaft groove 10 and the bearing outer ring 1, and a bow-fitting portion 12 is embedded in the fitting groove 11. The bow-fitting portion 12 is arranged on the outside of the sealing ring 8, and the outside of the sealing ring 8 is fitted on the inner wall surface of the bearing outer ring 1. The side of the sealing ring 8 away from the bearing outer ring 1 is fitted on the outside of the bearing inner ring 2. Three sealing lips 9 are arranged inside the sealing ring 8. The outsides of the three sealing lips 9 are fixedly connected to the inside of the sealing ring 8, and the insides of the three sealing lips 9 are fitted on the outside of the bearing inner ring 2. The outside of the sealing ring 8 is fitted on the inner wall surface of the bearing outer ring 1 to form a tight seal, which effectively prevents moisture, dust and other foreign matter from entering the bearing and protects the bearing from being invaded by the external environment. In addition, the sealing ring 8 is provided inside The three sealing lips 9 can evenly distribute the sealing pressure and improve the reliability of the seal. The upper and lower sides of the outer surface of the bearing outer ring 1 are provided with retaining ring grooves 6. The retaining ring grooves 6 can be used to fix the retaining rings. The matching use of the retaining ring grooves 6 and the retaining rings can make the bearing more stable during installation and avoid displacement of the bearing during assembly. An inner shaft groove 10 is provided between the bearing outer ring 1 and the bearing inner ring 2. A steel ball 5 is embedded in the middle of the inner shaft groove 10. The contact mode between the steel ball 5 and the inner shaft groove 10 is angular contact. The angular contact mode can reduce the friction between the steel ball 5 and the inner shaft groove 10. A retainer 7 is provided on the outer side of the middle part of the steel ball 5. The specific model of the retainer 7 is nylon PA66. The function of the retainer 7 is to keep the steel ball 5 in the correct position.

[0031] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A bearing for a seed drill, comprising a bearing outer ring (1), characterized in that: The bearing outer ring (1) is provided with a bearing inner ring (2) penetrating the middle thereof, the front and rear ends of the bearing inner ring (2) are provided with hexagonal holes (3), the outer surface of the bearing inner ring (2) is provided with three thread grooves (13), the three thread grooves (13) are distributed in an annular array on the outer side of the bearing inner ring (2), the inside of the three thread grooves (13) are all threadedly connected with top screws (4), and the outer ends of the three top screws (4) are all arranged on the outer side of the thread groove (13); An inner shaft groove (10) is provided between the bearing outer ring (1) and the bearing inner ring (2); fitting grooves (11) are provided between the front and rear sides of the inner shaft groove (10) and the bearing outer ring (1); a bow-fitting portion (12) is embedded in the fitting groove (11); the bow-fitting portion (12) is provided on the outside of the sealing ring (8); the outer side of the sealing ring (8) is fitted on the inner wall surface of the bearing outer ring (1); and the side of the sealing ring (8) away from the bearing outer ring (1) is fitted on the outside of the bearing inner ring (2).

2. A bearing for a seed drill according to claim 1, characterized in that: Three sealing lips (9) are arranged inside the sealing ring (8), the outer sides of the three sealing lips (9) are fixedly connected to the inner side of the sealing ring (8), and the inner sides of the three sealing lips (9) are arranged in close contact with the outer side of the bearing inner ring (2).

3. A bearing for a seed drill according to claim 1, characterized in that: The outer surface of the bearing outer ring (1) is provided with retaining ring grooves (6) on both upper and lower sides.

4. A bearing for a seed drill according to claim 1, characterized in that: A steel ball (5) is embedded in the middle of the inner shaft groove (10).

5. A bearing for a seed drill according to claim 4, characterized in that: The contact mode between the steel ball (5) and the inner shaft groove (10) is angular contact.

6. A bearing for a seed drill according to claim 4, characterized in that: A retainer (7) is sleeved on the outer side of the middle part of the steel ball (5).

7. A bearing for a seed drill according to claim 1, characterized in that: The bearing outer ring (1) and the bearing inner ring (2) are both made of stainless steel.

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