CN207229584U - A kind of new full surface contact bearing - Google Patents

Abstract

The utility model discloses a novel full-surface contact bearing, which belongs to the technical field of bearing structures. Including outer ring, inner ring, cage and sealing ring, the inner ring is set inside the outer ring and set coaxially; one end of the outer ring is formed with a flange with a load positioning hole and a groove with an internal thread; the inner side of the outer ring is designed along its circumference There are two ring-shaped inner slides arranged side by side, and the inner slides are arranged radially and inclined outward; the outer side of the inner ring is provided with two ring-shaped outer slides arranged side by side along its circumference, and the outer slides are radially inclined relatively inward. setting; a sliding body is provided between the corresponding inner slideway and the outer slideway; the sliding body includes a plurality of sliding blocks with an arc-shaped structure, and the sliding block is provided with an upper curved surface corresponding to the outer slideway surface and a corresponding The lower curved surface where the inner slide surface fits. The utility model adopts the surface contact between the sliding body and the inner and outer rings, which effectively improves the axial bearing capacity and meets the needs of low speed and heavy load.

Description

A New Type Full Surface Contact Bearing

technical field

The utility model relates to the technical field of bearing structures, in particular to a novel full-surface contact bearing.

Background technique

Bearings are mainly used to support the shaft and the parts on the shaft, maintain the rotation accuracy of the shaft and reduce the friction and wear between the shaft and the support, and are widely used in various machinery. In the prior art, sliding bearings can meet the conditions of heavy loads and large load changes, but sliding bearings cannot provide better axial support; although rolling bearings have small frictional resistance, sensitive starting, high efficiency, simple lubrication and easy replacement And other advantages, but its disadvantages are also obvious. Its impact resistance is poor, and it is not suitable for low-speed, heavy-load, and large-change load parts of agricultural machinery. Therefore, there is a need for a bearing that meets the needs of heavy loads, low speeds and large load changes during use of agricultural machinery.

Utility model content

The purpose of the invention of this utility model is to provide a new type of full-surface contact bearing in view of the above problems. The bearing system adopts full-contact surface rolling elements, which can meet the needs of low-speed, heavy-load, and large-change load rotating parts during the process. .

In order to achieve the above object, the technical solution adopted in the utility model is:

A new type of full-surface contact bearing, including an outer ring, an inner ring, a cage and a sealing ring. The inner ring is set inside the outer ring and arranged coaxially. There is also a cage between the outer ring and the inner ring; one end of the outer ring is molded There is a flange with a load positioning hole and a groove with an internal thread, the groove is coaxially arranged with the shaft hole of the outer ring and its diameter is larger than the diameter of the shaft hole of the outer ring; it is characterized in that: the inner side of the outer ring along its There are two ring-shaped inner slideways arranged side by side in the circumferential direction, and the inner slideways are arranged radially opposite to the outside; the outer side of the inner ring is provided with two ring-shaped outer slideways arranged side by side along the circumferential direction, and the outer slideways are radially opposite to each other. It is arranged inclined inwardly; a sliding body is provided between the corresponding inner slideway and the outer slideway; the sliding body includes a plurality of sliding blocks with an arc-shaped structure, and the sliding blocks are provided with corresponding outer slideway surface stickers. The combined upper curved surface and the lower curved surface corresponding to the inner slideway surface; the curvature of the upper curved surface is the same as that of the outer slideway, and the axial width of the upper curved surface is greater than the axial width of the outer slideway; The curvature of the lower curved surface is the same as that of the inner slideway, and the axial width of the lower curved surface is greater than the axial width of the inner slideway; the circumferential end surface of the sliding block is coplanar with the axis of the inner ring; the A sealing plate is installed on the internal thread of the groove, and the sealing plate is slidably attached to one end of the inner ring, and the other end of the inner ring is provided with a sealing ring, and the sealing ring includes an axial direction corresponding to the end of the inner ring of the sleeve cover. end and the radial end which is slidingly sealed with the inner side of the shaft hole of the outer ring, and the axial end and the radial end are perpendicular to each other.

Preferably, the retainer is provided with a nested position corresponding to the sliding block, and the retainer slides and fits relative to the inner edge of the outer ring and the outer edge of the inner ring.

Preferably, raised edges are provided on both sides of the cage, and the edges correspond to the grooves on the inner edge of the outer ring and the outer edge of the inner ring.

Preferably, there are 4-8 sliding blocks.

Preferably, the contact area between the sliding block and the outer slideway is larger than the contact area between the sliding block and the outer slideway.

Preferably, the curvature radii of the outer slideway and the inner slideway are the same.

Preferably, the outer side of one end of the inner ring corresponding to the sealing ring is provided with a stepped section from bottom to top, the axial end of the sealing ring is arranged in a ring shape and the stepped section corresponding to the end of the inner ring is correspondingly fitted, and the inner side of the axial end of the sealing ring is provided with The limit ring corresponding to the axial end of the inner ring; the radial end of the sealing ring is provided with a number of annular protrusions on the side corresponding to the outer ring, and the outer ring is provided with annular grooves corresponding to the protrusions; the seal The ring is provided with a skeleton corresponding to the axial end and the radial end and arranged at right angles and a rubber outer ring covering the skeleton, and the skeleton is connected with the limit ring.

Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

1. The utility model replaces the rolling body in the prior art by providing a slidable sliding body. The bearing obtained by adopting it has a large bearing capacity, is suitable for low-speed operation, and can meet the working conditions with large changes in the bearing capacity. The existing bearing rolling elements are mostly spherical, conical, cylindrical, etc., and the contact with the inner and outer rings is mostly point contact and line contact. field, which cannot provide high axial bearing capacity. The thrust bearing obtained by adopting the sliding body of the utility model, the contact provided by the sliding body and the inner and outer rings is surface contact, which effectively improves the axial bearing capacity; Line contact bearing capacity is not as good as surface contact.

2. Existing bearings have high machining accuracy requirements, such as angular contact ball bearings, while the utility model has lower machining accuracy requirements, and the number of sliding bodies used at the same time is less required, at least 4 sliding bodies can meet the work needs . Due to the large bearing capacity of the surface contact, although the relative friction is larger than that of the point contact and the line contact, the utility model is better than the prior art for low-speed agricultural, mining, and heavy-duty equipment with lubrication. The friction force of the medium bearing is not much different, but it is more suitable for the working requirements of low speed, heavy load and harsh environment. During operation, the sliding body rotates around the sliding circle of the bearing rotation center, which has the advantages of sliding bearings and also has the advantages of bearings.

3. The utility model has the advantages of low processing cost, simple structure, and large radial bearing capacity. Through the use of surface contact and sliding, it solves the shortcomings of rolling bearings in the prior art, and can meet the popularization and application of agricultural machinery and mining machinery.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a sectional view of FIG. 1 .

Fig. 3 is a schematic diagram of the cross-sectional structure of the sliding block of the present invention.

Fig. 4 is a structural schematic diagram of the sealing ring.

In the accompanying drawings, 1-outer ring, 2-inner ring, 3-cage, 4-sliding block, 5-upper curved surface, 6-lower curved surface, 7-sealing ring, 71-skeleton, 72-rubber outer ring , 73-radial end, 74-limit ring, 75-axial end, 8-flange, 9-positioning hole, 10-sealing plate.

Detailed ways

The utility model discloses a novel full-surface contact bearing, which comprises an outer ring, an inner ring, a cage and a sealing ring. The inner ring is set inside the outer ring and coaxially arranged, and a cage is also arranged between the outer ring and the inner ring; A flange with a load positioning hole and a groove with an internal thread are formed on one end of the outer ring. The groove is coaxially arranged with the shaft hole of the outer ring and its diameter is larger than the diameter of the shaft hole of the outer ring; Its circumferential direction is provided with two ring-shaped inner slideways arranged side by side, and the inner slideway is arranged radially relative to the outside; Relatively inclined inward; a sliding body is provided between the corresponding inner slideway and the outer slideway; the sliding body includes a plurality of sliding blocks with an arc-shaped structure, and the sliding block is provided with a corresponding outer slideway surface The fitted upper curved surface and the lower curved surface fitted to the corresponding inner slideway surface; the curvature of the upper curved surface is the same as that of the outer slideway, and the axial width of the upper curved surface is greater than the axial width of the outer slideway ; The curvature of the lower curved surface is the same as that of the inner slideway, and the axial width of the lower curved surface is greater than the axial width of the inner slideway; the circumferential end surface of the sliding block is coplanar with the axis of the inner ring; The internal thread of the groove is equipped with a sealing plate, and the sealing plate is slidably attached to one end of the inner ring, and the other end of the inner ring is provided with a sealing ring, and the sealing ring includes a shaft corresponding to the end of the inner ring. The axial end and the radial end that are slidably sealed with the inner side of the shaft hole of the outer ring, the axial end and the radial end are perpendicular to each other.

The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

As shown in Figures 1-3, a new type of full-surface contact bearing includes an outer ring 1, an inner ring 2, a cage 3 and a sealing ring 7. The inner ring 2 is set inside the outer ring 1 and coaxially arranged, and the outer ring 1 and A cage 3 is also provided between the inner rings 2 . One end of the outer ring 1 is formed with a flange 8 with a load positioning hole 9 and a groove with an internal thread. The groove is arranged coaxially with the shaft hole of the outer ring 1 and its diameter is larger than that of the shaft hole of the outer ring 1 . The inner side of the outer ring 1 is provided with two ring-shaped inner slideways arranged side by side along its circumferential direction, and the inner slideways are arranged radially and inclined outward; the outer side of the inner ring 2 is provided with two annular outer slideways arranged side by side along its circumferential direction. The radial direction of the slideway is relatively inwardly inclined. A sliding body is provided between the corresponding inner slideway and the outer slideway; the sliding body includes six sliding blocks 4 with an arc-shaped structure, and the sliding block 4 is provided with an upper curved surface 5 and Corresponding to the lower curved surface 6 where the inner slideway surface fits. The curvature of the upper curved surface 5 is the same as that of the outer slideway, and the axial width of the upper curved surface 5 is greater than the axial width of the outer slideway; the curvature of the lower curved surface 6 is the same as that of the inner slideway, and the lower curved surface The axial width of 6 is greater than the axial width of the inner slideway. Usually low speed means that when the rotating speed is less than 1000 revolutions per minute, the radius of curvature of the outer slideway and the inner slideway is the same, and the contact area between the sliding block 4 and the outer slideway is larger than the contact area between the sliding block 4 and the outer slideway, so that The pressure per unit area on the outer ring 1 can be reduced, and it is suitable for heavy-load and low-speed stable operation.

The inner thread of the groove is equipped with a sealing plate 10, the sealing plate 10 is slidably attached to one end of the inner ring 2, and the other end of the inner ring 2 is provided with a sealing ring 7, and the sealing ring 7 includes the axial direction of the end of the inner ring 2 corresponding to the cover. The end 75 and the radial end 73 which slides and seals with the inner side of the shaft hole of the outer ring 1, the axial end 75 and the radial end 73 are perpendicular. Here, the sealing plate 10 can play the role of sealing the bearing and axially limiting the inner ring 2 .

The retainer 3 is provided with a fitting position corresponding to the sliding block 4 , and the retainer 3 slides and fits relative to the inner edge of the outer ring 1 and the outer edge of the inner ring 2 . Both sides of the cage 3 are provided with raised edges, which correspond to the grooves on the inner edge of the outer ring 1 and the outer edge of the inner ring 2 .

As shown in Figure 4, the outer side of the inner ring 2 corresponding to the end of the sealing ring 7 is provided with a stepped section from bottom to top. 7. Inside the axial end 75 is provided a limit ring 74 corresponding to the axial end of the inner ring 2. The radial end 73 of the sealing ring 7 is provided with a plurality of annular protrusions corresponding to the bonding side of the outer ring 1 , and the outer ring 1 is provided with annular grooves corresponding to the protrusions. The sealing ring 7 is provided with a frame 71 corresponding to the axial end 75 and the radial end 73 at right angles and a rubber outer ring 72 covering the frame 71 . The frame 71 is connected to the limit ring 74 . The annular protrusion and its corresponding annular groove can have a good sliding sealing effect. Here, the limit ring 74 can be used as an axial positioning. At the same time, when in use, a step is formed at the end of the shaft corresponding to the inner ring 2, and the step surface is It fits the axial end of the inner ring 2, that is, the inner ring 2 and the shaft form a fixation to the limit ring 74, and because the limit ring 74 is connected to the skeleton 71 of the sealing ring 7, it is an integral structure, and the fixed limit ring 74 is It is equivalent to fixing the sealing ring 7 to avoid the deformation of the sealing ring 7 due to rotation and pulling, thus ensuring the sealing effect during use.

The above description is a detailed description of the preferred feasible embodiments of the present utility model, but the embodiments are not used to limit the scope of the patent application of the present utility model. All equivalent changes or modifications completed under the technical spirit suggested by the utility model, All should belong to the patent scope covered by the utility model.

Claims (7)

1. A new type of full-surface contact bearing, including an outer ring, an inner ring, a cage and a sealing ring. The inner ring is set inside the outer ring and arranged coaxially. There is also a cage between the outer ring and the inner ring; one end of the outer ring A flange with a load positioning hole and a groove with internal threads are formed on the top, and the groove is coaxially arranged with the shaft hole of the outer ring and its diameter is larger than the diameter of the shaft hole of the outer ring; it is characterized in that: the inner side of the outer ring There are two ring-shaped inner slideways arranged side by side along its circumferential direction, and the inner slideways are arranged radially and inclined outward; the outer side of the inner ring is provided with two annular outer slideways arranged side by side along its circumferential direction, and the diameter of the outer slideways is It is arranged relatively inwardly; a sliding body is provided between the corresponding inner slideway and the outer slideway; the sliding body includes a plurality of sliding blocks with an arc-shaped structure, and the corresponding outer slideway is provided on the sliding block The upper curved surface that fits the surface and the lower curved surface that corresponds to the inner slideway surface; the curvature of the upper curved surface is the same as that of the outer slideway, and the axial width of the upper curved surface is greater than the axial width of the outer slideway Width; the curvature of the lower curved surface is the same as that of the inner slideway, and the axial width of the lower curved surface is greater than the axial width of the inner slideway; the circumferential end surface of the sliding block is coplanar with the axis of the inner ring ; The internal thread of the groove is equipped with a sealing plate, the sealing plate is slidably fitted to one end of the inner ring, and the other end of the inner ring is provided with a sealing ring, and the sealing ring includes a corresponding cover at the end of the inner ring An axial end and a radial end slidingly sealed with the inner side of the shaft hole of the outer ring, the axial end and the radial end are perpendicular to each other. 2. A new type of full-surface contact bearing according to claim 1, characterized in that: the cage is provided with a fitting position corresponding to the sliding block, and the cage is opposite to the inner edge of the outer ring and the inner ring Slip fit at outer edge. 3. A new type of full-surface contact bearing according to claim 1, characterized in that: there are raised edges on both sides of the cage, and the edges correspond to the grooves on the inner edge of the outer ring and the outer edge of the inner ring . 4. A new type of full-surface contact bearing according to claim 1, characterized in that there are 4-8 sliding blocks. 5. A new type of full-surface contact bearing according to claim 1, characterized in that: the contact area between the sliding block and the outer slideway is larger than the contact area between the sliding block and the outer slideway. 6. A new type of full-surface contact bearing according to claim 1, characterized in that: the radius of curvature of the outer slideway and the inner slideway are the same. 7. A new type of full-surface contact bearing according to claim 1, characterized in that: the outer side of the inner ring corresponding to one end of the sealing ring is arranged in a stepped section from bottom to top, and the axial end of the sealing ring is arranged in a ring and corresponds to the inner The stepped section at the end of the ring corresponds to the fit, and the inner side of the axial end of the sealing ring is provided with a limit ring corresponding to the axial end of the inner ring; the radial end of the sealing ring is provided with a number of annular protrusions on the side corresponding to the outer ring. , the outer ring is provided with an annular groove corresponding to the protrusion; the sealing ring is provided with a skeleton corresponding to the axial end and the radial end at right angles and a rubber outer ring covering the skeleton, the skeleton and the limit The bit circles are connected.