Search

CN-224214582-U - Ball bearing for high-pressure spray cleaning machine

CN224214582UCN 224214582 UCN224214582 UCN 224214582UCN-224214582-U

Abstract

The utility model provides a ball bearing for a high-pressure spray cleaner, which relates to the field of bearings and comprises an outer ring; the ball bearing for the high-pressure spray cleaning machine is characterized in that an inner ring is movably arranged in the outer ring, an annular gap with a certain space is reserved between the inner ring and the outer ring, a plurality of balls are movably arranged in the gap, the balls are positioned by a retainer, the ball bearing is combined with a positioning cylinder and an inserting rod, elastic force is applied to a sliding boss by matching with a spring, the first shielding cover and the second shielding cover are firmly covered on a first step surface and a second step surface at two ends, meanwhile, a sealing effect is exerted by the first sealing ring and the second sealing ring, gaps are tightly sealed, moisture is effectively prevented from invading the inside of the bearing in the service process, the problem of corrosion of the bearing is avoided, and the problem that the ball bearing for the existing high-pressure spray cleaning machine is generally provided with a sealing structure for the purposes of preventing water and corrosion, but is inconvenient to be injected with lubricating oil after sealing is solved.

Inventors

  • LIU QINGDONG
  • Cui Xuewang
  • LI MING
  • FANG CHENG

Assignees

  • 山东永辉精密轴承有限公司

Dates

Publication Date
20260508
Application Date
20250715

Claims (6)

  1. 1. The ball bearing for the high-pressure spray cleaning machine comprises an outer ring (2), wherein an inner ring (1) is movably arranged in the outer ring (2), an annular gap with a certain space is reserved between the inner ring (1) and the outer ring (2), a plurality of balls (4) are movably arranged in the gap, the balls (4) are positioned by a retainer (3), and the ball bearing is characterized in that one end of the gap is covered with an annular first shielding cover (5), a first sealing ring (6) is adhered to the first shielding cover (5), the other end of the gap is covered with an annular second shielding cover (7), and a second sealing ring (8) is adhered to the second shielding cover (7).
  2. 2. The ball bearing for the high-pressure spray cleaning machine according to claim 1, wherein the outer side of the inner ring (1) is annularly provided with a first rolling groove (11), the inner side of the outer ring (2) is annularly provided with a second rolling groove (21), the total number of the balls (4) is six, and the six balls (4) are clamped between the first rolling groove (11) and the second rolling groove (21) in a hexagonal distribution.
  3. 3. The ball bearing for the high-pressure spray cleaning machine according to claim 1, wherein first step surfaces (12) are arranged at two ends of the inner ring (1), second step surfaces (22) are arranged at two ends of the outer ring (2), the first step surfaces (12) are flush with the second step surfaces (22), and the first sealing ring (6) and the second sealing ring (8) are clamped on the first step surfaces (12) and the second step surfaces (22) at the same time and are shielded at two ends of the annular gap.
  4. 4. The ball bearing for the high-pressure spray cleaning machine according to claim 1, wherein six groups of positioning cylinders (51) are uniformly distributed at one end of the first shielding cover (5), six groups of inserting rods (71) are uniformly distributed at one end of the second shielding cover (7), sliding lugs (72) are arranged at the ends of the inserting rods (71), and the distance from the positioning cylinders (51) to the central axis of the first shielding cover (5) is equal to the distance from the inserting rods (71) to the central axis of the second shielding cover (7).
  5. 5. The ball bearing for the high-pressure spray washer according to claim 4, wherein the insert rods (71) are respectively inserted into the positioning cylinders (51), the insert rods (71) are sleeved with springs (9) and sealing rings (10), and inward flanges are arranged at the end parts of the positioning cylinders (51).
  6. 6. The ball bearing for the high-pressure spray washer according to claim 5, wherein the sealing ring (10) is abutted against the flange, both ends of the spring (9) are respectively contacted with the sealing ring (10) and the sliding lug (72), and the spring (9) is in a compressed state.

Description

Ball bearing for high-pressure spray cleaning machine Technical Field The utility model belongs to the field of bearings, and particularly relates to a ball bearing for a high-pressure spray cleaning machine. Background The ball bearing is a common rolling bearing in the mechanical field, and is generally composed of an inner ring, an outer ring, balls and a retainer, wherein the rolling function is realized through rolling between the ball bearing and the inner ring raceway, and a sealing structure is generally arranged in equipment which needs to be frequently contacted with water vapor, such as a high-pressure spray cleaner, for protecting the interior of the bearing from corrosion of the water vapor. However, the sealing structure also brings new problems, because the sealing design is relatively closed, when the bearing needs to be injected with lubricating oil for lubrication maintenance, the operation becomes difficult, the sealing element is generally inconvenient to detach, and the sealing performance can be reduced if the sealing element cannot be reset after the sealing element is detached, so that in the equipment maintenance process, the good sealing corrosion resistance of the bearing is ensured, the lubricating problem is solved, and the double challenges in the technical and practical operation are realized. Disclosure of utility model In order to solve the technical problems, the utility model provides the ball bearing for the high-pressure spray cleaning machine, so as to solve the problems that the ball bearing for the existing high-pressure spray cleaning machine is generally provided with a sealing structure for the purposes of water resistance and rust resistance, but lubricating oil is inconvenient to inject after sealing for lubrication. The utility model provides a ball bearing for a high-pressure spray cleaner, which is realized by the following specific technical means: The ball bearing for the high-pressure spray cleaning machine comprises an outer ring, wherein an annular gap with a certain space is reserved between the inner ring and the outer ring is movably arranged in the outer ring, a plurality of balls are movably arranged in the gap and positioned through a retainer, one end of the gap is covered with an annular first shielding cover, a first sealing ring is adhered to the first shielding cover, the other end of the gap is covered with an annular second shielding cover, and the second shielding cover is adhered with a second sealing ring. Further, the outer side of the inner ring is annularly provided with a first rolling groove, the inner side of the outer ring is annularly provided with a second rolling groove, the total number of the balls is six, and six balls are hexagonally distributed and clamped between the first rolling groove and the second rolling groove. Furthermore, the two ends of the inner ring are provided with first step surfaces, the two ends of the outer ring are provided with second step surfaces, the first step surfaces are flush with the second step surfaces, and the first sealing ring and the second sealing ring are clamped on the first step surfaces and the second step surfaces at the same time and are shielded at the two ends of the annular gap. Further, six groups of positioning cylinders are uniformly distributed at one end of the first shielding cover, six groups of inserting rods are uniformly distributed at one end of the second shielding cover, sliding protruding blocks are arranged at the ends of the inserting rods, and the distance from the positioning cylinders to the central axis of the first shielding cover is equal to the distance from the inserting rods to the central axis of the second shielding cover. Further, the inserted bars are respectively inserted into the positioning cylinders, springs and sealing rings are sleeved on the inserted bars, and inward flanges are arranged at the end parts of the positioning cylinders. Further, the sealing ring is propped against the flange, two ends of the spring are respectively contacted with the sealing ring and the sliding protruding block, and the spring is in a compressed state. Compared with the prior art, the utility model has the following beneficial effects: The utility model realizes that the first shielding cover and the second shielding cover are firmly covered on the first step surface and the second step surface at two ends by the combined design of the positioning cylinder and the inserted link and the elastic force applied to the sliding boss by matching with the spring, and simultaneously, the first sealing ring and the second sealing ring play a sealing role to tightly seal the gap, thereby effectively preventing water vapor from invading the inside of the bearing in the service process and avoiding the rust problem of the bearing. When the bearing needs to be filled with lubricating oil, the operation is very simple and convenient, the plug rod can push the first shielding cov