Dustproof rotary gear ring

Abstract

The utility model discloses a dustproof rotary gear ring, which belongs to the technical field of transmission, comprises an inner gear ring, an outer base and a plurality of rolling bodies, a sealing piece is arranged between the inner gear ring and the outer base, the dustproof rotary gear ring is characterized in that the sealing piece comprises an upper sealing strip and a lower sealing strip, an upper slot I and a lower slot I are formed on the inner gear ring, and the rolling bodies are arranged in the upper slot I; a first upper inserting groove and a second lower inserting groove are formed in the outer base, the upper sealing strip is inserted into the first upper inserting groove and the second upper inserting groove respectively, the lower sealing strip is inserted into the first lower inserting groove and the second lower inserting groove respectively, the second upper inserting groove inclines towards the second lower inserting groove, and a plurality of inclined openings communicated with the second upper inserting groove are formed in the outer base. According to the dustproof rotation gear ring, the probability that rainwater is accumulated on the second upper inserting groove and the upper sealing strip is reduced, and the service life of the rotation gear ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission, and more particularly to a dustproof rotary gear ring. Background Art

[0002] Rotary ring gears are common transmission components of machinery and are often used in marine equipment, engineering machinery, light industrial machinery, metallurgical machinery and other fields.

[0003] When the rotating ring gear is working, its inner ring and outer ring will rotate relative to each other. In order to prevent dust and rainwater from entering between the inner ring and the outer ring, a sealing strip is provided between the inner ring and the outer ring. The sealing strip is used to block dust and rainwater, thereby extending the life of the rotating ring gear.

[0004] However, when rainwater accumulates on the sealing strip, as the inner ring and the outer ring rotate relative to each other, the rainwater can easily penetrate between the inner ring and the outer ring through the gap caused by the rotation of the sealing strip.

[0005] This application provides another technical solution to this technical problem. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a dust-proof rotary gear ring.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A dustproof rotary gear ring comprises an inner gear ring, an outer base and a plurality of rolling bodies, a seal is arranged between the inner gear ring and the outer base, the seal comprises an upper sealing strip and a lower sealing strip, the inner gear ring is formed with an upper slot one and a lower slot one, the outer base is formed with an upper slot two and a lower slot two, the upper sealing strip is respectively inserted into the upper slot one and the upper slot two, the lower sealing strip is respectively inserted into the lower slot one and the lower slot two, the upper slot two is inclined toward the direction of the lower slot two, and the outer base is provided with a plurality of inclined openings connected with the upper slot two.

[0009] The utility model is further configured as follows: a ring groove is formed on the second bottom of the upper slot, and a ring bulge is formed on the upper sealing strip to extend into the ring groove.

[0010] The utility model is further configured as follows: a pressing block is formed at the opening of the second upper slot close to the inclined opening, and the pressing block is in contact with the upper sealing strip.

[0011] The utility model is further configured such that: the position of the annular groove corresponds to the pressing block.

[0012] The present invention is further configured such that: the lower slot 1 is inclined toward the upper slot 1.

[0013] The utility model is further configured such that: there is interference fit between the upper sealing strip and the second lower slot, and between the lower sealing strip and the first lower slot.

[0014] In summary, the present invention has the following beneficial effects:

[0015] After rainwater falls on the upper sealing strip, it will flow along the upper sealing strip into the upper slot two, and then be discharged through the inclined port, which can reduce the probability of rainwater accumulating in the upper slot two and the upper sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1. Inner gear ring; 2. Outer base; 3. Rolling element; 4. Rolling groove; 5. Upper slot 1; 6. Lower slot 1; 7. Upper slot 2; 8. Lower slot 2; 9. Upper sealing strip; 10. Lower sealing strip; 11. Inclined mouth; 12. Press block; 13. Ring groove; 14. Ring bulge. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of the embodiments.

[0021] like Figure 1 、 Figure 2 as well as Figure 3As shown, the present application provides a dustproof rotating gear ring, including an inner gear ring 1 and an outer base 2 and a plurality of rolling elements 3, wherein the inner gear ring 1 and the outer base 2 are both formed with rolling grooves 4, and the rolling elements 3 are located in the rolling grooves 4 of the inner gear ring 1 and the outer base 2, wherein the inner gear ring 1 is formed with an upper slot 1 5 and a lower slot 1 6, and the outer base 2 is formed with an upper slot 2 7 and a lower slot 2 8, and a seal is arranged between the inner gear ring 1 and the outer base 2, and the seal includes an upper sealing strip 9 and a lower sealing strip 10, the upper sealing strip 9 is respectively inserted into the upper slot 1 5 and the upper slot 2 7, and the lower sealing strip 10 is respectively inserted into the lower slot 1 6 and the lower slot 2 8, the upper sealing strip 9 and the lower sealing strip 10 will shield the inner gear ring 1 and the outer base 2, reducing the probability of water and dust entering the rolling groove 4.

[0022] like Figure 2 and Figure 3 As shown, in this embodiment, the position of the upper slot 1 5 is higher than the upper slot 2 7, wherein the upper slot 2 7 is inclined toward the direction of the lower slot 2 8, and the lower slot 1 6 is inclined toward the direction of the upper slot 1 5, so that the part of the upper sealing strip 9 corresponding to the upper slot 2 7 and the part of the lower sealing strip 10 corresponding to the lower slot 1 6 are also inclined, and there is an interference fit between the upper sealing strip 9 and the upper slot 1 5, as well as between the lower sealing strip 10 and the lower slot 2 8, and the outer base 2 is provided with a plurality of inclined openings 11 connected with the upper slot 2 7. When rainwater falls on the upper sealing strip 9, it will flow along the upper sealing strip 9 into the upper slot 2 7 and then be discharged through the inclined openings 11, which can reduce the probability of rainwater accumulating in the upper slot 2 7 and the upper sealing strip 9, thereby reducing the probability of water entering the rolling groove 4.

[0023] like Figure 2 and Figure 3 As shown, a pressure block 12 is formed at the opening of the upper slot 2 7 near the inclined opening 11. The pressure block 12 is in contact with the upper sealing strip 9. The pressure block 12 can increase the stability of the upper sealing strip 9 in the upper slot 2 7, thereby ensuring the shielding effect. A ring groove 13 is formed at the bottom of the upper slot 2 7, and the upper sealing strip 9 is formed with an annular protrusion 14 extending into the annular groove 13. The position of the annular groove 13 corresponds to the pressure block 12. The cooperation of the annular groove 13 and the annular protrusion 14 can further increase the shielding effect of the upper sealing strip 9.

[0024] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A dustproof rotary gear ring, comprising an inner gear ring, an outer base, and a plurality of rolling elements, wherein a seal is provided between the inner gear ring and the outer base, and characterized in that: The sealing member includes an upper sealing strip and a lower sealing strip, the inner gear ring is formed with an upper slot 1 and a lower slot 1, the outer base is formed with an upper slot 2 and a lower slot 2, the upper sealing strip is respectively inserted into the upper slot 1 and the upper slot 2, the lower sealing strip is respectively inserted into the lower slot 1 and the lower slot 2, the upper slot 2 is inclined toward the direction of the lower slot 2, and the outer base is provided with a plurality of inclined openings connected with the upper slot 2.

2. The dustproof rotary gear ring according to claim 1, characterized in that: A ring groove is formed on the bottom of the second upper slot, and a ring bulge is formed on the upper sealing strip to extend into the ring groove.

3. The dustproof rotary gear ring according to claim 2, characterized in that: A pressing block is formed on the opening of the second upper slot close to the inclined opening, and the pressing block is in contact with the upper sealing strip.

4. The dustproof rotary gear ring according to claim 3, characterized in that: The position of the annular groove corresponds to the pressing block.

5. The dustproof rotary gear ring according to claim 1, characterized in that: The lower slot 1 is inclined toward the upper slot 1.

6. The dustproof rotary gear ring according to claim 5, characterized in that: There is interference fit between the upper sealing strip and the upper slot 1, as well as between the lower sealing strip and the lower slot 2.

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