Efficient dustproof bearing for engraving machine

Abstract

The utility model provides an efficient dustproof bearing for a carving machine, which relates to the technical field of bearings and comprises an outer ring and an inner ring, a first arc-shaped groove is arranged on the surface of the inner wall of the outer ring, a second arc-shaped groove is arranged on the surface of the outer wall of the inner ring, and a plurality of steel balls are movably arranged between the first arc-shaped groove and the second arc-shaped groove. According to the utility model, external dust is prevented from entering the bearing under the clamping matching of the sealing ring, the first clamping groove and the second clamping groove, and meanwhile, the surface of the sealing ring can be tightly attached to the surfaces of the inner walls of the first clamping groove and the second clamping groove under the elastic action of the annular spring on the surfaces of the inner walls of the first annular hole and the second annular hole; therefore, the sealing gap is greatly reduced, external dust particles are not prone to entering the bearing, the sealing effect is enhanced, and the dust prevention performance is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and more specifically, to a high-efficiency dustproof bearing for engraving machines. Background Technology

[0002] Bearings, often referred to as the "joints" of machines, support mechanical transmission shafts and are crucial for achieving the performance, function, and efficiency of the main machine. Their primary function is to transmit force and motion while reducing frictional losses, ensuring smoother rotation, protecting rotating support components, and maintaining the rotating "shaft" in the correct position. An existing bearing, with publication number CN218152031U, includes an outer ring, an inner ring, and multiple rolling elements. The outer ring is coaxially fitted around the outer side of the inner ring. Raceways are provided on the inner and outer surfaces of the outer ring, and multiple rolling elements are arranged within the raceways. The outer surface of the outer ring includes a cylindrical surface and two curved surfaces, located at opposite axial ends. The ends of the cylindrical surface smoothly transition to the two curved surfaces, and the two curved surfaces are symmetrical about the mid-section and any axial section of the cylindrical surface. The end face area of ​​the outer ring is smaller than the cross-sectional area of ​​the cylindrical surface. This invention can alleviate stress concentration at the edge of the bearing outer ring, reduce the abnormal damage rate of the bearing, and extend its service life.

[0003] However, in this structure, the sealing ring in the bearing is connected to the outer and inner rings by engaging with a slot. This connection method has a large sealing gap, which makes it easy for dust particles in the outside air to enter the bearing through the sealing gap, resulting in a significant reduction in dust protection. Utility Model Content

[0004] The main objective of this invention is to provide a high-efficiency dustproof bearing for engraving machines, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency dustproof bearing for a carving machine includes an outer ring and an inner ring. The inner wall surface of the outer ring is provided with a first arc-shaped groove, and the outer wall surface of the inner ring is provided with a second arc-shaped groove. A plurality of steel balls are movably arranged between the first arc-shaped groove and the second arc-shaped groove.

[0007] Two dustproof components are provided between the outer ring and the inner ring for dust prevention.

[0008] Preferably, the dustproof component includes two first slots and a second slot. The first slot is formed on the inner wall surface of the outer ring, and the second slot is formed on the outer wall surface of the inner ring. Adjacent first slots and second slots are fitted together with a sealing ring, and both sealing rings are provided with a tightening structure for tightening.

[0009] Preferably, the tightening structure includes a first annular hole and a second annular hole, which are respectively opened inside the corresponding sealing rings, and elastic elements are provided in both the first annular hole and the second annular hole.

[0010] Preferably, the elastic element is a ring spring.

[0011] Preferably, a first connecting ring and a second connecting ring are fixedly installed on opposite sides of the two sealing rings, and a sealing structure for sealing is provided on the side of the adjacent first connecting ring and second connecting ring that is far away from each other.

[0012] Preferably, the sealing structure includes a sealing ring, which is fixedly installed on the side away from each other of the adjacent first connecting ring and second connecting ring.

[0013] Preferably, the sealing ring has a semi-circular cross-sectional shape.

[0014] Preferably, each of the steel balls is provided with a retainer on its surface.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) With the snap-fit ​​between the sealing ring and the first and second slots, external dust is prevented from entering the bearing. At the same time, under the elastic force of the ring spring on the inner wall surface of the first and second annular holes, the surface of the sealing ring can be tightly fitted with the inner wall surface of the first and second slots, thereby greatly reducing the sealing gap, making it difficult for external dust particles to enter the bearing, enhancing the sealing effect and greatly improving dust resistance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency dustproof bearing for a carving machine according to the present invention.

[0018] Figure 2 This is a front view schematic diagram of the high-efficiency dustproof bearing for a carving machine according to the present invention;

[0019] Figure 3 This utility model relates to a high-efficiency dustproof bearing for engraving machines. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0020] Figure 4 This utility model relates to a high-efficiency dustproof bearing for engraving machines. Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Outer ring; 2. Inner ring; 3. First arc groove; 4. Second arc groove; 5. Steel ball; 6. Dustproof component; 601. First slot; 602. Second slot; 603. Sealing ring; 604. Tightening structure; 6041. First annular hole; 6042. Second annular hole; 6043. Elastic element; 7. First connecting ring; 8. Second connecting ring; 9. Sealing structure; 901. Sealing ring; 10. Cage. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1-4 As shown, a high-efficiency dustproof bearing for a carving machine includes an outer ring 1 and an inner ring 2. The inner wall surface of the outer ring 1 is provided with a first arc-shaped groove 3, and the outer wall surface of the inner ring 2 is provided with a second arc-shaped groove 4. A plurality of steel balls 5 are movably arranged between the first arc-shaped groove 3 and the second arc-shaped groove 4.

[0024] Two dustproof components 6 are provided between the outer ring 1 and the inner ring 2 for dust prevention.

[0025] The dustproof component 6 includes two first slots 601 and a second slot 602. The first slot 601 is formed on the inner wall surface of the outer ring 1, and the second slot 602 is formed on the outer wall surface of the inner ring 2. A sealing ring 603 is engaged between adjacent first slots 601 and second slots 602. Each of the two sealing rings 603 has a tightening structure 604 for tightening.

[0026] The tightening structure 604 includes a first annular hole 6041 and a second annular hole 6042. The first annular hole 6041 and the second annular hole 6042 are respectively opened inside the corresponding sealing ring 603. An elastic element 6043 is provided in both the first annular hole 6041 and the second annular hole 6042.

[0027] The elastic element 6043 is a ring spring.

[0028] The operator connects the outer ring 1 to the mounting hole of the engraving machine and the inner ring 2 to the rotating shaft of the engraving machine, facilitating subsequent use of the engraving machine. The locking engagement between the sealing ring 603 and the first and second slots 601 and 602 prevents external dust from entering the bearing. Simultaneously, the elastic force exerted by the annular spring on the inner walls of the first and second annular holes 6041 and 6042 ensures that the surface of the sealing ring 603 fits tightly against the inner walls of the first and second slots 601 and 602, significantly reducing the sealing gap and making it difficult for external dust particles to enter the bearing, thus enhancing the sealing effect and greatly improving dust resistance.

[0029] In another embodiment of this utility model, a first connecting ring 7 and a second connecting ring 8 are fixedly installed on opposite sides of the two sealing rings 603, and a sealing structure 9 for sealing is provided on the side of the adjacent first connecting ring 7 and second connecting ring 8 that is far away from each other.

[0030] The sealing structure 9 includes a sealing ring 901, which is fixedly installed on the adjacent first connecting ring 7 and second connecting ring 8 on opposite sides.

[0031] By setting a sealing ring 901, when the sealing ring 603 is engaged inside the first slot 601 and the second slot 602, the sealing ring 901 can fit against the inner wall of the outer ring 1 and the outer wall of the inner ring 2, thereby achieving secondary sealing and further enhancing the sealing performance.

[0032] In another embodiment of this utility model, the sealing ring 901 has a semi-circular cross-sectional shape.

[0033] By setting the cross-sectional shape of the sealing ring 901 to a semi-circular shape, the sealing effect is maintained while reducing the contact area with the bearing, reducing bearing wear, and helping to extend the bearing's service life.

[0034] In another embodiment of this utility model, a retainer 10 is commonly fitted onto the surface of each steel ball 5.

[0035] By setting the cage 10, the steel balls 5 are evenly and orderly distributed, ensuring that the steel balls 5 can move freely between the inner ring 2 and the outer ring 1 without collision, thus extending the service life of the bearing.

[0036] The working principle of a high-efficiency dustproof bearing used in engraving machines:

[0037] During use, the operator connects the outer ring 1 to the mounting hole of the engraving machine and the inner ring 2 to the rotating shaft of the engraving machine. This facilitates subsequent use of the engraving machine. The locking engagement between the sealing ring 603 and the first slot 601 and the second slot 602 prevents external dust from entering the bearing. At the same time, under the elastic force exerted by the annular spring on the inner wall surfaces of the first annular hole 6041 and the second annular hole 6042, the surface of the sealing ring 603 can fit tightly against the inner wall surfaces of the first slot 601 and the second slot 602, greatly reducing the sealing gap and making it difficult for external dust particles to enter the bearing, thus enhancing the sealing effect and greatly improving dust resistance.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A high-efficiency dustproof bearing for a carving machine, comprising an outer ring (1) and an inner ring (2), characterized in that: The outer ring (1) has a first arc-shaped groove (3) on its inner wall surface, and the inner ring (2) has a second arc-shaped groove (4) on its outer wall surface. Several steel balls (5) are movably arranged between the first arc-shaped groove (3) and the second arc-shaped groove (4). Two dustproof components (6) for dust prevention are provided between the outer ring (1) and the inner ring (2); The dustproof component (6) includes two first slots (601) and a second slot (602). The first slot (601) is opened on the inner wall surface of the outer ring (1), and the second slot (602) is opened on the outer wall surface of the inner ring (2). A sealing ring (603) is provided between adjacent first slots (601) and second slots (602). Both sealing rings (603) are provided with a tightening structure (604) for tightening. The tightening structure (604) includes a first annular hole (6041) and a second annular hole (6042), the first annular hole (6041) and the second annular hole (6042) are respectively opened inside the corresponding sealing ring (603), and an elastic element (6043) is provided in both the first annular hole (6041) and the second annular hole (6042); The elastic element (6043) is a ring spring.

2. The high-efficiency dustproof bearing for an engraving machine according to claim 1, characterized in that: The two sealing rings (603) are fixedly installed with a first connecting ring (7) and a second connecting ring (8) on opposite sides. The adjacent first connecting rings (7) and second connecting rings (8) are provided with sealing structures (9) for sealing on the side away from each other.

3. The high-efficiency dustproof bearing for an engraving machine according to claim 2, characterized in that: The sealing structure (9) includes a sealing ring (901), which is fixedly installed on the side away from each other of the adjacent first connecting ring (7) and second connecting ring (8).

4. The high-efficiency dustproof bearing for an engraving machine according to claim 3, characterized in that: The sealing ring (901) has a semi-circular cross-sectional shape.

5. The high-efficiency dustproof bearing for an engraving machine according to claim 1, characterized in that: Each of the steel balls (5) is fitted with a retainer (10) on its surface.

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