High-bearing-capacity composite bearing

Abstract

The utility model discloses a composite bearing with high bearing capacity, which comprises an outer ring, a spacer ring and an inner ring, the spacer ring is fixed in the outer ring, the inner ring is rotatably arranged in the spacer ring, the outer side wall of the inner ring is attached to the inner side wall of the spacer ring to slide, a plurality of small holes are uniformly arranged on the inner wall of the spacer ring, a layer of PEEK film is arranged on the inner wall of the spacer ring, and the PEEK film is arranged on the inner wall of the spacer ring. The PEEK film is provided with a plurality of through holes corresponding to the small holes, an oil injection hole is formed in the outer ring in a penetrating mode, an inner hole communicated with the oil injection hole is formed in the spacer ring in a penetrating mode, the PEEK film is arranged on the inner side of the spacer ring, and due to the fact that the excellent sliding characteristic of the PEEK film is matched with lubricating oil injected through the oil injection hole, the friction coefficient between the inner ring and the spacer ring is greatly reduced; the loss caused by sliding friction of the inner ring is reduced, and the service life of the inner ring is prolonged, so that the bearing can bear higher pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a high-load composite bearing. Background Art

[0002] Bearings are rotating parts in mechanical structures. While playing a rotating role, they usually also serve as a force-bearing structure, bearing the pressure of the upper parts. In the sliding bearing shaft, since the rotating bearing is connected to the journal of the shaft, the greater the pressure it bears, the greater the friction coefficient of the bearing when it rotates, which leads to wear and tear of the bearing, greatly reducing the service life of the bearing. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies in the prior art, the utility model proposes a high-load composite bearing.

[0004] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0005] A high-load composite bearing comprises an outer ring, a spacer ring and an inner ring, wherein the spacer ring is fixedly arranged inside the outer ring, the inner ring is rotatably installed inside the spacer ring, the outer wall of the inner ring slides on the inner wall of the spacer ring, a plurality of small holes are evenly opened on the inner wall of the spacer ring, a layer of PEEK film is arranged on the inner wall of the spacer ring, the PEEK film has a plurality of through holes corresponding to the small holes, an oil injection hole is penetrated on the outer ring, and an inner hole connected to the oil injection hole is penetrated on the spacer ring.

[0006] According to a preferred technical solution, a plurality of limit edges are protruding from the inner wall of the inner ring, the length of the limit edges is arranged along the length direction of the inner ring, and the plurality of limit edges are evenly distributed along the circumference of the inner ring.

[0007] A preferred technical solution is that a plurality of first fixing grooves with semicircular cross-sections are provided on the inner wall of the outer ring, the length direction of the first fixing grooves is arranged along the length direction of the outer ring, and the plurality of first fixing grooves are evenly distributed along the axial direction of the outer ring, and a plurality of second fixing grooves matching the first fixing grooves one by one are provided on the outer wall of the spacer ring, the first fixing grooves and the second fixing grooves are combined to form a circular fixing hole, and a fixing pin is matched and inserted into the fixing hole.

[0008] According to a preferred technical solution, at least one sliding edge is provided on the outer wall of the inner ring along its axial protrusion, and a sliding groove matching the sliding edge is provided on the inner wall of the spacer ring, and the sliding edge slides in the sliding groove.

[0009] According to a preferred technical solution, a circle of sealing grooves is respectively provided on the inner wall of the inner ring near the two sides thereof, a circle of sealing rings is clamped in the sealing grooves, and the sealing rings protrude from the sealing grooves and are in tight contact with the inner wall of the spacer ring.

[0010] Compared with the prior art, the beneficial effects are:

[0011] The utility model has a simple structure and is easy to use. By arranging a PEEK film on the inner side of the spacer ring, the excellent sliding properties of the PEEK film combined with the lubricating oil injected from the oil filling hole greatly reduce the friction coefficient between the inner ring and the spacer ring, slow down the loss caused by the sliding friction of the inner ring, and extend the service life of the inner ring, so that the bearing can withstand greater pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the middle spacer ring of the utility model.

[0015] Figure numerals: 1, outer ring; 2, first arc-shaped member; 3, second arc-shaped member; 4, inner ring; 5, fixing pin; 6, limiting edge; 7, sliding edge; 8, sealing ring; 9, small hole. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] A high-load composite bearing comprises an outer ring 1, a spacer ring and an inner ring 4, wherein the spacer ring is fixedly arranged in the outer ring 1, and the inner ring 4 is installed and rotatably arranged in the spacer ring, and the spacer ring mainly comprises a first arc-shaped member 2 and a second arc-shaped member 3 connected in a ring shape, and the outer wall of the inner ring 4 slides on the inner wall of the spacer ring, and a plurality of small holes 9 are evenly opened on the inner wall of the spacer ring, and a layer of PEEK film is arranged on the inner wall of the spacer ring, and the PEEK film has a plurality of through holes corresponding to the small holes 9, and an oil injection hole is penetrated on the outer ring 1, and an inner hole connected to the oil injection hole is penetrated on the spacer ring.

[0018] The journal of the mechanical shaft is installed in the inner ring 4, and rotates through the sliding friction between the inner ring 4 and the spacer ring. The lubricating oil is injected through the oil filling hole and penetrates into the spacer ring and the inner ring 4 for lubrication. The excellent sliding properties of the PEEK film greatly reduce the friction coefficient between the inner ring 4 and the spacer ring, thereby extending the service life of the inner ring 4. In addition, the lubricating oil can be stored in a number of small holes 9 to extend the service life of the lubricating oil, thereby enabling the bearing to withstand greater pressure.

[0019] According to a preferred technical solution, a plurality of limit edges 6 are protruding from the inner wall of the inner ring 4 , the length of the limit edges 6 is arranged along the length direction of the inner ring 4 , and the plurality of limit edges 6 are evenly distributed along the circumference of the inner ring 4 .

[0020] The bearing of the mechanical shaft installed on the inner ring 4 is matched with a limiting groove. After the shaft neck is inserted into the inner ring 4, the limiting edge 6 is inserted into the limiting groove, thereby avoiding slippage between the shaft neck and the inner ring 4.

[0021] A preferred technical solution is that a plurality of first fixing grooves with semicircular cross-sections are provided on the inner wall of the outer ring 1, the length direction of the first fixing grooves is arranged along the length direction of the outer ring 1, and the plurality of first fixing grooves are evenly distributed along the axial direction of the outer ring 1, and a plurality of second fixing grooves matching the first fixing grooves one by one are provided on the outer wall of the spacer ring, the first fixing grooves and the second fixing grooves are combined to form a circular fixing hole, and a fixing pin 5 is matched and inserted into the fixing hole.

[0022] After the spacer ring is inserted into the outer ring 1, the first fixing groove corresponds to the second fixing groove, and the fixing pin 5 is inserted to fix the outer ring 1 and the spacer ring.

[0023] According to a preferred technical solution, at least one sliding edge 7 is provided on the outer wall of the inner ring 4 along its axial direction, and a sliding groove matching the sliding edge 7 is provided on the inner wall of the spacer ring, and the sliding edge 7 slides in the sliding groove.

[0024] The cooperation between the sliding groove and the sliding edge 7 can prevent the inner ring 4 from shifting and falling off from the spacer ring after being impacted.

[0025] According to a preferred technical solution, a circle of sealing grooves is respectively provided on the inner wall of the inner ring 4 near its two sides, and a circle of sealing rings 8 is clamped in the sealing grooves. The sealing rings 8 protrude from the sealing grooves and are in tight contact with the inner wall of the spacer ring.

[0026] The sealing ring 8 prevents dust from entering between the inner ring 4 and the spacer ring and causing jamming.

[0027] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A high-load composite bearing, characterized in that: It comprises an outer ring (1), a spacer ring and an inner ring (4), wherein the spacer ring is fixedly arranged inside the outer ring (1), the inner ring (4) is installed and rotatably arranged inside the spacer ring, the outer wall of the inner ring (4) slides on the inner wall of the spacer ring, a plurality of small holes (9) are evenly opened on the inner wall of the spacer ring, a layer of PEEK film is arranged on the inner wall of the spacer ring, the PEEK film has a plurality of through holes corresponding to the small holes (9), an oil injection hole is penetrated on the outer ring (1), and an inner hole connected to the oil injection hole is penetrated on the spacer ring.

2. The high-load-bearing composite bearing according to claim 1, characterized in that: A plurality of limit edges (6) are protruding from the inner wall of the inner ring (4), the length of the limit edges (6) is arranged along the length direction of the inner ring (4), and the plurality of limit edges (6) are evenly distributed along the circumference of the inner ring (4).

3. The high-load composite bearing according to claim 1, characterized in that: The inner wall of the outer ring (1) is provided with a plurality of first fixing grooves with a semicircular cross section, the length direction of the first fixing grooves being arranged along the length direction of the outer ring (1), and the plurality of first fixing grooves being evenly distributed along the axial direction of the outer ring (1), and the outer wall of the spacer ring is provided with a plurality of second fixing grooves matching the first fixing grooves one by one, the first fixing grooves and the second fixing grooves being combined to form a circular fixing hole, and a fixing pin shaft (5) is matched and inserted into the fixing hole.

4. The high-load-bearing composite bearing according to claim 1, characterized in that: The outer wall of the inner ring (4) is provided with at least one circle of sliding edge (7) protruding along its axial direction, and the inner wall of the spacer ring is provided with a sliding groove matching the sliding edge (7), and the sliding edge (7) is stuck in the sliding groove and slides.

5. The high-load-bearing composite bearing according to claim 1, characterized in that: A circle of sealing grooves is respectively arranged on the inner wall of the inner ring (4) near its two sides, and a circle of sealing rings (8) is clamped in the sealing grooves. The sealing rings (8) protrude out of the sealing grooves and are in tight contact with the inner wall of the spacer ring.

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