Waterproof thin-wall long-life bearing

Abstract

The utility model discloses a waterproof thin-wall long-life bearing which comprises an outer shaft, an inner shaft and a ball, a connecting structure is installed in the outer shaft, the ball is installed in the connecting structure, the inner shaft is installed on the inner side of the connecting structure, and sealing structures are installed above and below the connecting structure. The connecting structure comprises a connecting ring, an elastic block and a connecting groove, the connecting groove is formed in the inner side of the outer shaft and the outer side of the inner shaft, balls are connected into the connecting groove in a rolling mode, the connecting ring is rotatably connected to the outer sides of the balls and arranged between the outer shaft and the inner shaft, and the elastic block is clamped between the outer shaft and the connecting ring. The sealing structure comprises a first sealing ring. According to the waterproof thin-wall long-service-life bearing, the balls are connected more stably through the connecting structure, meanwhile, the probability that the balls are displaced when extruded by the outer shaft is reduced, the sealing performance between the outer shaft and the inner shaft is improved through the sealing structure, and meanwhile the sealing assembly can be protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely is a waterproof thin wall long life bearing. BACKGROUND

[0002] Thin wall bearing has very thin cross section size, realizes lightweight and miniaturization of product, is applicable to the equipment of limited space, this design has important application value in the field such as aerospace, precision instrument and small -size machinery.

[0003] With reference to the Chinese patent authorized announcement No.CN214698822U, authorized announcement day is November 12, 2021, a kind of ball bearing is disclosed, including bearing body, the inner side of the bearing body is provided with inner ring, the inner side of the bearing body is provided with retainer, the outer side of the retainer is provided with ball, the side of the bearing body is provided with dust cover, the side of the dust cover is provided with through hole, the inner side of the through hole is provided with internal hexagon fixing bolt, the side of the bearing body is provided with fixed groove, the inner side of the inner ring is provided with fastening ring, the inside of the fastening ring is provided with buffer block, the inside of the buffer block is provided with compression ball.The ball bearing of the utility model, by being provided with dust cover, it is favorable to the better dustproof effect of bearing body during use, prevent the dust from entering the inside of bearing body, reduce the service life of bearing body, by being provided with fastening ring, improve the installation efficiency of bearing body.

[0004] Among the above prior art, the following technical problems exist: the existing thin wall long life bearing is provided with dust cover to play dustproof effect, but the sealing effect needs to be improved, when the bearing body is deformed by extrusion from outside, the ball is prone to displacement, thereby affecting the use effect and service life;Therefore, we propose a waterproof thin wall long life bearing to solve the problems in the above. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a waterproof thin wall long life bearing to solve the problems in the above background art that the existing thin wall long life bearing is provided with dust cover to play dustproof effect, but the sealing effect needs to be improved, when the bearing body is deformed by extrusion from outside, the ball is prone to displacement, thereby affecting the use effect and service life.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A waterproof thin -walled long -life bearing, including outer shaft, inner shaft and ball, the outer shaft is installed with connecting structure, the connecting structure is installed with ball, the connecting structure inside is installed with inner shaft, the connecting structure top and bottom are installed with sealing structure, the connecting structure includes connecting ring, elastic block and connecting groove, the connecting groove is set in the inner side of outer shaft and the outer side of inner shaft, the connecting groove is connected with the ball of rolling, the outer side of ball is rotatably connected with connecting ring, the connecting ring is arranged between the outer shaft and the inner shaft, the elastic block is stuck between the outer shaft and the connecting ring.

[0007] Preferably, the sealing structure includes a first sealing ring, and the outer ring and the inner ring of the first sealing ring are respectively clamped on the inner side of the outer shaft and the outer side of the inner shaft.

[0008] Preferably, the first sealing ring is provided with a sealing ring at one end away from the connecting ring, and the sealing ring is fixedly installed on the inner side of the outer shaft and the outer side of the inner shaft.

[0009] Preferably, the sealing ring is clamped with a second sealing ring.

[0010] Preferably, the sealing ring is provided with a protection plate at one end away from the first sealing ring, and the protection plate is fixedly installed on the inner side of the outer shaft.

[0011] Preferably, the protection plate is fixedly connected with a third sealing ring at one end away from the outer shaft.

[0012] Preferably, the third sealing ring is slidingly connected in the groove on the outer side of the inner shaft.

[0013] Compared with the prior art, the utility model has the advantages that: the waterproof thin -walled long -life bearing, through connecting structure, make the ball connection more stable, reduce the probability of displacement of ball when being extruded by outer shaft, through sealing structure, improve the sealing property between outer shaft and inner shaft, and the sealing assembly can be protected.

[0014] 1. The connecting structure is provided with, and the ball is rollingly connected in the connecting groove on the inner side of the outer shaft and the outer side of the inner shaft, and the connecting ring is rotatably connected in the middle of the ball, so that the stability of the ball is improved, the elastic block is arranged between the connecting ring and the outer shaft, so that when the outer shaft is extruded by the outside, the elastic block buffers part of the force, so that the probability of deformation of the connecting ring is reduced, and the phenomenon of displacement of the ball caused by the deformation of the connecting ring is avoided.

[0015] 2. The sealing structure is provided with a plurality of sealing rings installed between the outer shaft and the inner shaft, so as to improve the sealing effect, and the two sealing rings form a vacuum interlayer, and the second sealing ring also forms a vacuum interlayer with the protection plate, the vacuum interlayer reduces the collision and diffusion of gas molecules by forming a low-pressure environment between the two sealing surfaces, thereby reducing the possibility of gas leakage and further enhancing the sealing effect, thereby achieving the effects of waterproofing and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the sectional structure of the utility model;

[0017] Figure 2 It is the utility model Figure 1 It is an enlarged structure schematic view of A in the utility model;

[0018] Figure 3 It is a top view of the sectional structure of the utility model;

[0019] Figure 4 It is a schematic view of the connecting structure and the outer shaft and the inner shaft connecting structure of the utility model;

[0020] Figure 5 It is a schematic view of the utility model three-dimensional structure.

[0021] In the drawing: 1, outer shaft; 2, inner shaft; 3, ball; 4, connecting structure; 401, connecting ring; 402, elastic block; 403, connecting groove; 5, sealing structure; 501, first sealing ring; 502, sealing ring; 503, second sealing ring; 504, protection plate; 505, third sealing ring. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides the following technical scheme:

[0024] Embodiment one: a waterproof thin-walled long-life bearing, comprising an outer shaft 1, an inner shaft 2 and a ball 3, the outer shaft 1 is provided with a connecting structure 4, the connecting structure 4 is provided with the ball 3, the inner side of the connecting structure 4 is provided with the inner shaft 2, and the upper and lower sides of the connecting structure 4 are provided with a sealing structure 5;

[0025] The connecting structure 4 comprises a connecting ring 401, an elastic block 402 and a connecting groove 403, the connecting groove 403 is arranged on the inner side of the outer shaft 1 and the outer side of the inner shaft 2, the connecting groove 403 is rolling connected with the ball 3, the outer side of the ball 3 is rotating connected with the connecting ring 401, the connecting ring 401 is arranged between the outer shaft 1 and the inner shaft 2, the connecting ring 401 ensures the stable rotation of the ball 3, the elastic block 402 is clamped between the outer shaft 1 and the connecting ring 401, which can reduce the force buffered by the elastic block 402 when the outer shaft 1 is extruded, thereby reducing the probability of deformation of the connecting ring 401, thereby avoiding the displacement of the ball 3 caused by the deformation of the connecting ring 401, and the elastic block 402 will not affect the rotation of the outer shaft 1 and the inner shaft 2, and at the same time, the outer shaft 1 and the connecting ring 401 can also be stably clamped, so as not to be rotated and fallen off;

[0026] As shown in Figure 1 , Figure 3 and Figure 4 , the connecting structure 4 comprises a connecting ring 401, an elastic block 402 and a connecting groove 403, the connecting groove 403 is arranged on the inner side of the outer shaft 1 and the outer side of the inner shaft 2, the connecting groove 403 is rolling connected with the ball 3, the outer side of the ball 3 is rotating connected with the connecting ring 401, the connecting ring 401 is arranged between the outer shaft 1 and the inner shaft 2, the connecting ring 401 ensures the stable rotation of the ball 3, the elastic block 402 is clamped between the outer shaft 1 and the connecting ring 401, which can reduce the force buffered by the elastic block 402 when the outer shaft 1 is extruded, thereby reducing the probability of deformation of the connecting ring 401, thereby avoiding the displacement of the ball 3 caused by the deformation of the connecting ring 401, and the elastic block 402 will not affect the rotation of the outer shaft 1 and the inner shaft 2, and at the same time, the outer shaft 1 and the connecting ring 401 can also be stably clamped, so as not to be rotated and fallen off;

[0027] As shown in Figure 2 and Figure 5 , the sealing structure 5 comprises a first sealing ring 501, a sealing ring 502, a second sealing ring 503, a protection plate 504 and a third sealing ring 505, the outer ring and the inner ring of the first sealing ring 501 are clamped on the inner side of the outer shaft 1 and the outer side of the inner shaft 2, the first sealing ring 501 is provided with a sealing ring 502 away from the connecting ring 401, the sealing ring 502 is fixedly installed on the inner side of the outer shaft 1 and the outer side of the inner shaft 2, the upper and lower sealing rings 502 are clamped with the second sealing ring 503, and the first sealing ring 501 and the second sealing ring 503 are vacuum interlayers, the sealing ring 502 is provided with a protection plate 504 away from the first sealing ring 501, the protection plate 504 is fixedly installed on the inner side of the outer shaft 1, the protection plate 504 is fixedly connected with the third sealing ring 505 away from the outer shaft 1, and the third sealing ring 505 is slidingly connected in the groove on the outer side of the inner shaft 2, so that the second sealing ring 503 and the protection plate 504 also form a vacuum interlayer;

[0028] As described above, the sealing structure 5 is composed of multiple sealing members, and two vacuum interlayers are formed, the vacuum interlayer forms a low-pressure environment between two sealing surfaces, reduces the collision and diffusion of gas molecules, thereby reducing the possibility of gas leakage, further enhancing the sealing effect, thereby achieving the effects of waterproof and long service life, the protection plate 504 is made of a material with high hardness, which can protect the sealing assembly from being extruded and deformed by the outside, thereby affecting the sealing effect;

[0029] In the second embodiment, the outer shaft 1 and the inner shaft 2 are both made of composite materials, the outermost part is made of material with large hardness and the innermost part is made of material with large hardness, and the material has the properties of wear resistance, corrosion resistance and large hardness, the middle part is made of elastic material, the elastic material (such as rubber, polyurethane) has good elasticity and deformation ability, can be elastically deformed under stress, and quickly returns to the original state after unloading, and the "hard-soft-hard" design can further prolong the service life of the bearing.

[0030] The above completes a series of operations of the waterproof thin-wall long-life bearing, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0031] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein.

[0032] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A waterproof thin-walled long-life bearing, comprising an outer shaft (1), an inner shaft (2) and a ball (3), characterized in that: a connecting structure (4) is installed in the outer shaft (1), the ball (3) is installed in the connecting structure (4), the inner shaft (2) is installed on the inner side of the connecting structure (4), and sealing structures (5) are installed above and below the connecting structure (4); the connecting structure (4) comprises a connecting ring (401), an elastic block (402) and a connecting groove (403), the connecting groove (403) is opened on the inner side of the outer shaft (1) and the outer side of the inner shaft (2), the ball (3) is rolling connected in the connecting groove (403), the connecting ring (401) is rotating connected on the outer side of the ball (3), the connecting ring (401) is arranged between the outer shaft (1) and the inner shaft (2), and the elastic block (402) is clamped between the outer shaft (1) and the connecting ring (401).

2. A water resistant thin-walled long-life bearing according to claim 1, characterized in that: the sealing structure (5) comprises a first sealing ring (501), and the outer ring and the inner ring of the first sealing ring (501) are clamped on the inner side of the outer shaft (1) and the outer side of the inner shaft (2), respectively.

3. A water resistant thin-walled long-life bearing according to claim 2, characterized in that: a sealing ring (502) is arranged at the end of the first sealing ring (501) away from the connecting ring (401), and the sealing ring (502) is fixedly installed on the inner side of the outer shaft (1) and the outer side of the inner shaft (2), respectively.

4. A water resistant thin-walled long-life bearing according to claim 3, characterized in that: a second sealing ring (503) is clamped in the sealing ring (502).

5. A water resistant thin-walled long-life bearing according to claim 3, characterized in that: a protection plate (504) is arranged at the end of the sealing ring (502) away from the first sealing ring (501), and the protection plate (504) is fixedly installed on the inner side of the outer shaft (1).

6. A water resistant thin-walled long-life bearing according to claim 5, characterized in that: a third sealing ring (505) is fixedly connected to the end of the protection plate (504) away from the outer shaft (1).

7. A water resistant thin-walled long-life bearing according to claim 6, characterized in that: the third sealing ring (505) is slidingly connected in the groove on the outer side of the inner shaft (2).

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