Slewing bearing for wading

Abstract

The utility model discloses a wading slewing bearing, which relates to the technical field of slewing bearings and comprises a slewing bearing main body, an upper sealing element, a lower sealing element, an upper protective cover and a lower protective cover, the slewing bearing main body consists of an inner ring, an outer ring and a rolling body, and the upper protective cover is used for shielding and protecting the upper surface of the upper sealing element. And the lower protective cover is used for shielding and protecting the lower surface of the lower sealing piece. Through the arrangement of the upper protective cover and the lower protective cover, the phenomenon that the upper sealing piece and the lower sealing piece are damaged due to the fact that hard objects make contact with and collide with the upper sealing piece and the lower sealing piece can be avoided, meanwhile, aging aggravation of the sealing pieces due to the fact that the upper sealing piece and the lower sealing piece are directly irradiated by the sun can be avoided, and therefore aging of the upper sealing piece and the lower sealing piece can be effectively slowed down; therefore, the service life of the upper sealing element and the lower sealing element is prolonged, the slewing bearing can be better used in an outdoor environment, and a good waterproof effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of slewing bearing technology, specifically a slewing bearing for use in water. Background Technology

[0002] Slewing bearings are large bearings capable of withstanding combined loads, including large axial and radial loads and overturning moments.

[0003] When the slewing bearing on an excavator is used, it is exposed to the external environment for a long time. The seals on the slewing bearing are prone to aging and loosening, which allows mud and water to enter the raceway during excavation operations, causing corrosion inside the raceway. Based on this, a slewing bearing for wading is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a slewing bearing for wading in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slewing bearing for wading, comprising a slewing bearing body composed of an inner ring, an outer ring, and rolling elements. The outer ring is distributed outside the inner ring, and the rolling elements are tactilely connected to the inner side of the raceway between the inner and outer rings. A sealing element mounting groove is provided on the top of the outer side of the inner ring and the bottom of the inner side of the outer ring. An upper sealing element and a lower sealing element are respectively installed on the inner side of the two sealing element mounting grooves. The upper and lower sealing elements are used to seal the gap between the inner and outer rings.

[0006] The top of the inner ring and the bottom of the outer ring are both provided with protective cover mounting grooves. An upper protective cover is installed inside the protective cover mounting groove at the top of the inner ring. The upper protective cover is used to shield and protect the upper surface of the upper seal.

[0007] A lower protective cover is installed inside the mounting groove of the outer ring bottom protective cover. The lower protective cover is used to shield and protect the lower surface of the lower seal.

[0008] As a further improvement of this utility model: multiple upper and lower protective covers are provided, and multiple upper and lower protective covers are combined to form a ring structure.

[0009] As a further improvement of this utility model: the bottom of the inner wall of the protective cover mounting groove is provided with a plurality of circumferentially distributed threaded holes, and the upper protective cover and the lower protective cover are provided with mounting holes aligned with the threaded holes.

[0010] As a further embodiment of this utility model: the sealing groove on the inner ring is inclined downward toward the outer ring, and the sealing groove on the outer ring is inclined upward toward the inner ring.

[0011] As a further improvement of this utility model: an annular groove is provided at the bottom of the inner wall of the sealing element mounting groove, and anti-slip protrusions are formed on the upper sealing element and the upper protective cover to engage with the annular groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By installing upper and lower protective covers, contact and collision between hard objects and the upper and lower seals can be avoided, preventing damage to the seals. Simultaneously, direct sunlight on the seals can be prevented, thus accelerating their aging. This effectively slows down the aging of the upper and lower seals, extending their service life and allowing the slewing bearing to be used better in outdoor environments with excellent waterproofing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembly of the upper sealing element, upper protective cover, and inner ring of this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembled lower seal, lower protective cover, and outer ring of this utility model.

[0018] In the diagram: 1. Slewing bearing body; 101. Inner ring; 102. Outer ring; 103. Rolling element; 104. Seal mounting groove; 105. Annular groove; 106. Protective cover mounting groove; 107. Threaded hole; 2. Upper seal; 3. Upper protective cover; 4. Lower seal; 5. Lower protective cover; 6. Anti-slip protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4In this embodiment of the present invention, a slewing bearing for wading includes a slewing bearing body 1 composed of an inner ring 101, an outer ring 102, and a rolling element 103. The outer ring 102 is distributed outside the inner ring 101. The rolling element 103 is tactilely connected to the inner ring 101 and the inner side of the raceway of the outer ring 102. A sealing element mounting groove 104 is provided on the top of the outer side of the inner ring 101 and the bottom of the inner side of the outer ring 102. An upper sealing element 2 and a lower sealing element 4 are respectively installed on the inner side of the two sealing element mounting grooves 104. The upper sealing element 2 and the lower sealing element 4 are used to seal the gap between the inner ring 101 and the outer ring 102.

[0021] The top of the inner ring 101 and the bottom of the outer ring 102 are both provided with protective cover mounting grooves 106. An upper protective cover 3 is installed inside the protective cover mounting groove 106 at the top of the inner ring 101. The upper protective cover 3 is used to shield and protect the upper surface of the upper seal 2.

[0022] A lower protective cover 5 is installed inside the bottom protective cover mounting groove 106 of the outer ring 102. The lower protective cover 5 is used to shield and protect the lower surface of the lower seal 4.

[0023] Multiple protective covers 3 and multiple lower protective covers 5 are provided, and multiple upper protective covers 3 and multiple lower protective covers 5 are combined to form a ring structure;

[0024] The bottom of the inner wall of the protective cover mounting groove 106 is provided with several circumferentially distributed threaded holes 107, and the upper protective cover 3 and the lower protective cover 5 are provided with mounting holes aligned with the threaded holes 107.

[0025] In this embodiment: When installing this slewing bearing, after the upper seal 2 and the lower seal 4 are respectively installed on the inner ring 101 and the outer ring 102, an upper protective cover 3 can be installed on the top of the inner ring 101. Multiple annularly distributed upper protective covers 3 can completely cover the upper seal 2. A lower protective cover 5 is installed at the bottom of the outer ring 102. Multiple annularly distributed lower protective covers 5 completely cover the lower seal 4.

[0026] Thus, when used in an outdoor environment, the upper protective cover 3 and the lower protective cover 5 can block some fixed impurities (such as stones) and sunlight, thereby preventing hard objects from contacting and colliding with the upper seal 2 and the lower seal 4, which could cause damage to the upper seal 2 and the lower seal 4. At the same time, it can prevent direct sunlight from hitting the upper seal 2 and the lower seal 4, which could lead to accelerated aging of the seals.

[0027] The combination of these multiple parts can effectively slow down the aging of the upper seal 2 and the lower seal 4, thereby extending the service life of the upper seal 2 and the lower seal 4, enabling the slewing bearing to be used better in outdoor environments and providing good waterproof performance.

[0028] Please refer to this carefully. Figures 1-4The sealing mounting groove 104 on the inner ring 101 is inclined downward toward the outer ring 102, and the sealing mounting groove 104 on the outer ring 102 is inclined upward toward the inner ring 101.

[0029] The bottom of the inner wall of the sealing installation groove 104 is provided with an annular groove 105, and the upper sealing element 2 and the upper protective cover 3 are formed with anti-slip protrusions 6 that engage with the annular groove 105.

[0030] In this embodiment: the inclined structure of the sealing installation groove 104 allows the upper sealing element 2 and the lower sealing element 4 to fit better against the surfaces of the outer ring 102 and the inner ring 101 after installation, thereby achieving a good sealing effect.

[0031] By engaging the protective protrusion 6 with the annular groove 105 and using the protective cover to limit and compress the seal, not only can the seal be effectively prevented from loosening, but it can also prevent the seal from deforming outward, thus further improving the sealing effect of the seal.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A slewing bearing for wading, comprising a slewing bearing body (1) consisting of an inner ring (101), an outer ring (102), and rolling elements (103), wherein the outer ring (102) is distributed outside the inner ring (101), and the rolling elements (103) are tactically connected to the inner ring (101) and the inner side of the raceway of the outer ring (102), characterized in that, The outer top of the inner ring (101) and the inner bottom of the outer ring (102) are both provided with sealing element mounting grooves (104). An upper sealing element (2) and a lower sealing element (4) are respectively installed on the inner side of the two sealing element mounting grooves (104). The upper sealing element (2) and the lower sealing element (4) are used to seal the gap between the inner ring (101) and the outer ring (102). The top of the inner ring (101) and the bottom of the outer ring (102) are both provided with protective cover mounting grooves (106). An upper protective cover (3) is installed inside the protective cover mounting groove (106) at the top of the inner ring (101). The upper protective cover (3) is used to shield and protect the upper surface of the upper sealing element (2). The lower protective cover (5) is installed inside the bottom protective cover mounting groove (106) of the outer ring (102). The lower protective cover (5) is used to shield and protect the lower surface of the lower seal (4).

2. A slewing bearing for wading applications according to claim 1, characterized in that, Multiple upper protective covers (3) and lower protective covers (5) are provided, and multiple upper protective covers (3) and lower protective covers (5) are combined to form a ring structure.

3. A slewing bearing for wading applications according to claim 1, characterized in that, The bottom of the inner wall of the protective cover mounting groove (106) is provided with several circumferentially distributed threaded holes (107), and the upper protective cover (3) and the lower protective cover (5) are provided with mounting holes aligned with the threaded holes (107).

4. A slewing bearing for wading applications according to claim 1, characterized in that, The sealing mounting groove (104) on the inner ring (101) is inclined downward toward the outer ring (102), and the sealing mounting groove (104) on the outer ring (102) is inclined upward toward the inner ring (101).

5. A slewing bearing for wading applications according to claim 1, characterized in that, The bottom of the inner wall of the sealing installation groove (104) is provided with an annular groove (105), and the upper sealing element (2) and the upper protective cover (3) are formed with anti-slip protrusions (6) that engage with the annular groove (105).

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