Sealed deep groove ball bearing

Abstract

The utility model discloses a sealed deep groove ball bearing, and relates to the technical field of deep groove ball bearings. The sealing ring comprises an outer ring and an inner ring, a buffering mechanism and a lubricating mechanism are arranged on the outer ring, and the buffering mechanism comprises a buffering assembly and a sealing assembly; the buffering assembly comprises a plurality of limiting blocks fixedly connected to the outer wall of the inner ring, a plurality of balls are arranged between the limiting blocks, the outer wall of the inner ring and the inner wall of the outer ring are each provided with an embedded sliding groove, the outer caliber of each ball is the same as the inner caliber of the corresponding embedded sliding groove, and the balls are slidably connected with the inner walls of the embedded sliding grooves. And first grooves are formed in the multiple limiting blocks correspondingly, two pistons are slidably connected to the inner walls of the first grooves, and sliding rods are fixedly connected to the sides, away from each other, of the two pistons correspondingly. The buffering mechanism is arranged, so that the contact area of the balls and the circular grooves is reduced, the heat consumption and the energy loss of the bearing are reduced, and the overall efficiency and the stability of the bearing are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep groove ball bearings, in particular to a sealed deep groove ball bearing. Background Art

[0002] In the prior art, after searching, it was found that a Chinese patent disclosed "a deep groove ball bearing sealing structure", and its announcement number is "CN105697555A". This patent mainly uses the sealing wings of the sealing ring to cooperate with the sealing grooves one and two to play a sealing role. A metal rope or a soft rope can also be inserted into the metal sleeve and the sealing ring is pulled outward to separate the sealing ring from the bearing. After that, lubricant can be added to the inside. Moreover, since the outer end face of the sealing ring is smoothly transitioned with the outer end face of the inner ring of the bearing and the outer end face of the outer ring of the bearing respectively, the sealing ring will not affect the outside when the bearing is working.

[0003] However, in the prior art, most balls have too large a contact area with the inside of the bearing, which increases the friction between the ball and the bearing, thereby affecting the operating performance and life of the bearing, and may also cause heat accumulation and vibration, resulting in unstable operation of the entire machine and frequent shutdowns. Utility Model Content

[0004] The utility model aims to provide a sealed deep groove ball bearing. By providing a buffer mechanism, when the ball slides or rotates on the inner wall of the embedded slide groove, the ball will contact the slide rod, reducing the contact area between the ball and the circular groove, thereby reducing the friction of the ball, reducing the heat consumption and energy loss of the bearing, and improving the overall efficiency and stability of the bearing, solving the problem that most balls have too large a contact area with the inside of the bearing, which will lead to an increase in the friction between the ball and the bearing.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a sealed deep groove ball bearing, comprising an outer ring and an inner ring, wherein a buffer mechanism and a lubrication mechanism are arranged on the outer ring, and the buffer mechanism comprises a buffer component and a sealing component;

[0007] The buffer assembly includes a plurality of limit blocks fixedly connected to the outer wall of the inner ring, a plurality of ball bearings are arranged between the limit blocks, the outer wall of the inner ring and the inner wall of the outer ring are provided with an inlay groove, the outer diameter of the ball bearing is the same as the inner diameter of the inlay groove, the ball bearing is slidably connected to the inner wall of the inlay groove, a groove 1 is provided inside the plurality of limit blocks, two pistons are slidably connected to the inner wall of the inlay groove, a sliding rod is fixedly connected to the two pistons on the sides away from each other, a spring 1 is wound around the outer walls of the two sliding rods, one end of the spring 1 is fixedly connected to the piston, and the other end of the spring 1 is fixedly connected to the inner wall of the groove 1, the limit block is provided with two circular grooves, the ends of the two sliding rods away from each other both slide and extend to the inside of the circular groove, and the inner diameter of the circular groove is larger than the outer diameter of the ball bearing.

[0008] Furthermore, the sealing assembly includes two connecting grooves formed on the outer wall of the outer ring, and the inner walls of the two connecting grooves are fixedly connected with sealing rings.

[0009] Furthermore, the lubrication mechanism includes a lubrication component and a filling component, the lubrication component includes a cavity opened inside the outer ring, and the inner wall of the inlaid slide groove located on the inner wall of the outer ring is provided with a plurality of grooves 2, and the plurality of grooves 2 are all connected to the interior of the cavity.

[0010] Furthermore, a plurality of the grooves 2 are provided with a push rod inside, the push rod is in contact with the ball, and a filling plate is fixedly connected to one end of the push rod away from the ball, and the filling plate is in contact with the inner wall of the inner ring.

[0011] Furthermore, a plurality of the filling plates have one side away from the push rod fixedly connected with a spring 2, and a plurality of the springs have one end away from the filling plate fixedly connected with the inner wall of the cavity.

[0012] Furthermore, the filling assembly includes a slide groove formed on the outer wall of the outer ring, and a groove three is formed on the inner wall of the cavity, and the slide groove is communicated with the interior of the groove three.

[0013] Furthermore, the inner wall of the slide groove is slidably connected with a filling pipe, the inner wall of the groove three is slidably connected with a gasket, the gasket is fixedly connected to the filling pipe, the inner wall of the cavity is fixedly connected with a spring three, the end of the spring three away from the cavity is fixedly connected to the gasket, and the outer wall of the filling pipe is connected to be provided with a filling hole, and the inner diameter of the filling hole is smaller than the inner diameter of the filling pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1. By providing a buffer mechanism, when the ball slides or rotates on the inner wall of the embedded slide groove, the ball will contact the slide rod, reducing the contact area between the ball and the circular groove, thereby reducing the friction of the ball, reducing the heat consumption and energy loss of the bearing, and improving the overall efficiency and stability of the bearing. When the ball contacts the slide rod, when the bearing is filled with grease, it will resist the slide rod and be slidably connected with the slide rod, thereby displacing the two pistons in the groove 1. At this time, the spring 1 will stretch or contract, reducing the resistance generated when the ball contacts the slide rod, further improving the overall efficiency and stability of the bearing.

[0016] 2. By providing a lubrication mechanism, the ball will squeeze the push rod when sliding through the groove 2, so that the push rod presses against the filling plate. At this time, the spring 2 is compressed, and after the ball passes through the groove 2, the spring 2 will reset, driving the grease in the cavity to be squeezed into the gap between the groove 2 and the push rod, adding grease to the inlaid slide groove, achieving the effect of automatic grease addition and extending the service life of the bearing.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the outer ring of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the limit block of the utility model;

[0022] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 for Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Outer ring; 2. Buffer mechanism; 3. Lubrication mechanism; 21. Inner ring; 22. Limit block; 221. Groove 1; 222. Piston; 223. Slide rod; 224. Spring 1; 225. Circular groove; 23. Ball; 24. Inlaid slide groove; 25. Connecting groove; 26. Sealing ring; 31. Cavity; 32. Groove 2; 33. Push rod; 34. Filling plate; 35. Spring 2; 36. Slide groove; 37. Filling pipe; 38. Gasket; 39. Groove 3; 391. Spring 3; 392. Filling hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 As shown, the utility model is a sealed deep groove ball bearing, comprising an outer ring 1 and an inner ring 21, a buffer mechanism 2 and a lubrication mechanism 3 are arranged on the outer ring 1, and the buffer mechanism 2 comprises a buffer component and a sealing component;

[0028] The buffer assembly includes a plurality of limit blocks 22 fixedly connected to the outer wall of the inner ring 21, a plurality of balls 23 are arranged between the limit blocks 22, the outer wall of the inner ring 21 and the inner wall of the outer ring 1 are both provided with an inlay groove 24, the outer diameter of the ball 23 is the same as the inner diameter of the inlay groove 24, the ball 23 is slidably connected to the inner wall of the inlay groove 24, a groove 221 is provided inside the limit blocks 22, two pistons 222 are slidably connected to the inner wall of the groove 221, a sliding rod 223 is fixedly connected to the sides of the two pistons 222 that are away from each other, a spring 224 is wound around the outer walls of the two sliding rods 223, one end of the spring 224 is fixedly connected to the piston 222, and the other end of the spring 224 is fixedly connected to the inner wall of the groove 221, The limit block 22 is provided with two circular grooves 225, and the ends of the two slide bars 223 that are away from each other both slide and extend into the interior of the circular grooves 225. The inner diameter of the circular grooves 225 is larger than the outer diameter of the ball 23. The sealing assembly includes two connecting grooves 25 provided on the outer wall of the outer ring 1, and the inner walls of the two connecting grooves 25 are fixedly connected with sealing rings 26. By providing a buffer mechanism 2, when the ball 23 slides or rotates on the inner wall of the embedded slide groove 24, the ball 23 will contact the slide bar 223, reducing the contact area between the ball 23 and the circular groove 225, thereby reducing the friction of the ball 23, reducing the heat consumption and energy loss of the bearing, and improving the overall efficiency and stability of the bearing. The lubrication mechanism 3 includes a lubrication assembly and a filling assembly. The lubrication assembly includes a lubrication assembly provided on the outer ring 1 The inner cavity 31 is provided with a plurality of grooves 22 on the inner wall of the outer ring 1 on which the slide groove 24 is embedded. The plurality of grooves 22 are communicated with the interior of the cavity 31. The interiors of the plurality of grooves 22 are provided with push rods 33, which are in contact with the ball bearings 23. The ends of the plurality of push rods 33 away from the ball bearings 23 are fixedly connected with filling plates 34, which fit the inner wall of the inner ring 21. The sides of the plurality of filling plates 34 away from the push rods 33 are fixedly connected with springs 25, and the ends of the plurality of springs 25 away from the filling plates 34 are fixedly connected with the inner wall of the cavity 31. The filling assembly includes a slide groove 36 provided on the outer wall of the outer ring 1. The inner wall of the cavity 31 is provided with a groove 39, which is communicated with the interior of the groove 39. The inner wall of the cavity 31 is fixedly connected with a spring 391, and one end of the spring 391 away from the cavity 31 is fixedly connected with the gasket 38. The outer wall of the filling tube 37 is connected with a filling hole 392, and the inner diameter of the filling hole 392 is smaller than the inner diameter of the filling tube 37. By providing the lubricating mechanism 3, the ball 23 will squeeze the ejector rod 33 when sliding through the groove 2 32, so that the ejector rod 33 presses the filling plate 34. At this time, the spring 2 35 is compressed, and after the ball 23 passes through the groove 2 32, the spring 2 35 will reset, driving the grease in the cavity 31 to be squeezed to the gap between the groove 2 32 and the ejector rod 33.Adding grease into the embedded slide groove 24 achieves the effect of automatically adding grease and prolongs the service life of the bearing.

[0029] A specific application of this embodiment is: by providing a buffer mechanism 2, multiple circular grooves 225 cooperate with each other, so that the ball 23 can only rotate inside the circular groove 225, so that the multiple circular grooves 225 limit the ball 23 to prevent the ball 23 from sliding out of the circular groove 225 when rotating. When the ball 23 slides or rotates on the inner wall of the embedded slide groove 24, the ball 23 will contact the slide bar 223, reducing the contact area between the ball 23 and the circular groove 225, thereby reducing the friction of the ball 23, reducing the heat consumption and energy loss of the bearing, and improving the overall efficiency and stability of the bearing. When the two pistons 222 in the groove 1 221 are in contact with each other, if the bearing is filled with grease, the two pistons 222 in the groove 1 221 will be displaced. At this time, the spring 1 224 will stretch or contract, reducing the resistance generated when the ball 23 contacts the slide bar 223, further improving the overall efficiency and stability of the bearing. The connecting groove 25 and the sealing ring 26 cooperate with each other, and a small gap is left between the sealing ring 26 and the inner ring 21, so that the internal grease will be distributed in the small gap when it is filled to prevent external dust from entering the bearing, thereby improving the overall sealing performance.

[0030] By providing the lubrication mechanism 3, the cavity 31 is filled with grease. When the grease between the ball 23 and the embedded groove 24 is insufficient and the bearing is in operation, the ball 23 will squeeze the ejector rod 33 when sliding through the second groove 32, so that the ejector rod 33 presses against the filling plate 34. At this time, the second spring 35 is compressed, and after the ball 23 passes through the second groove 32, the second spring 35 will reset, driving the grease in the cavity 31 to be squeezed into the gap between the second groove 32 and the ejector rod 33, and adding grease to the embedded groove 24, thereby achieving the effect of automatically adding grease. To extend the service life of the bearing, when the grease inside the cavity 31 is insufficient, the ejector pin of the external filler can be inserted into the filling tube 37 and pressed against the gasket 38. At this time, the spring three 391 is squeezed so that the filling hole 392 is connected to the inside of the cavity 31. At this time, grease can be added to the inside of the cavity 31 through the filler. After the filling is completed and the filler is pulled out, the spring three 391 is reset. At this time, the filling hole 392 slides into the slide groove 36 and is hidden, preventing dust in the external air from flowing into the cavity 31 through the filling hole 392, thereby further improving the overall sealing.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sealed deep groove ball bearing, comprising an outer ring (1) and an inner ring (21), characterized in that: The outer ring (1) is provided with a buffer mechanism (2) and a lubrication mechanism (3), and the buffer mechanism (2) comprises a buffer component and a sealing component; The buffer assembly comprises a plurality of limit blocks (22) fixedly connected to the outer wall of the inner ring (21), a plurality of balls (23) being arranged between the limit blocks (22), the outer wall of the inner ring (21) and the inner wall of the outer ring (1) being provided with an inlay groove (24), the outer diameter of the ball (23) being the same as the inner diameter of the inlay groove (24), the ball (23) being slidably connected to the inner wall of the inlay groove (24), the interior of the plurality of limit blocks (22) being provided with a groove 1 (221), the inner wall of the groove 1 (221) being slidably connected to two pistons (222), the two pistons being provided with a plurality of pistons. A sliding rod (223) is fixedly connected to one side of each piston (222) that is away from each other, and a spring (224) is wound around the outer wall of each sliding rod (223). One end of the spring (224) is fixedly connected to the piston (222), and the other end of the spring (224) is fixedly connected to the inner wall of the groove (221). Two circular grooves (225) are provided on the limit block (22), and the ends of the two sliding rods (223) that are away from each other slide and extend into the interior of the circular groove (225), and the inner diameter of the circular groove (225) is larger than the outer diameter of the ball (23).

2. A sealed deep groove ball bearing according to claim 1, characterized in that: The sealing assembly comprises two connecting grooves (25) formed on the outer wall of the outer ring (1), and the inner walls of the two connecting grooves (25) are fixedly connected with sealing rings (26).

3. A sealed deep groove ball bearing according to claim 2, characterized in that: The lubrication mechanism (3) comprises a lubrication component and a filling component. The lubrication component comprises a cavity (31) opened inside the outer ring (1). The inner wall of the inlay slide groove (24) located on the inner wall of the outer ring (1) is provided with a plurality of grooves (32). The plurality of grooves (32) are all in communication with the interior of the cavity (31).

4. A sealed deep groove ball bearing according to claim 3, characterized in that: A plurality of the grooves (32) are provided with push rods (33) inside, the push rods (33) are in contact with the ball bearings (23), and a filling plate (34) is fixedly connected to one end of the push rods (33) away from the ball bearings (23), and the filling plate (34) is in contact with the inner wall of the inner ring (21).

5. A sealed deep groove ball bearing according to claim 4, characterized in that: A plurality of the filling plates (34) are fixedly connected to a spring 2 (35) on one side away from the push rod (33), and a plurality of the spring 2 (35) are fixedly connected to an inner wall of the cavity (31) on one end away from the filling plate (34).

6. A sealed deep groove ball bearing according to claim 5, characterized in that: The filling assembly comprises a slide groove (36) formed on the outer wall of the outer ring (1), and a groove three (39) is formed on the inner wall of the cavity (31), wherein the slide groove (36) is in communication with the interior of the groove three (39).

7. A sealed deep groove ball bearing according to claim 6, characterized in that: The inner wall of the slide groove (36) is slidably connected to a filling pipe (37), the inner wall of the groove three (39) is slidably connected to a gasket (38), the gasket (38) is fixedly connected to the filling pipe (37), the inner wall of the cavity (31) is fixedly connected to a spring three (391), one end of the spring three (391) away from the cavity (31) is fixedly connected to the gasket (38), and the outer wall of the filling pipe (37) is connected to a filling hole (392), and the inner diameter of the filling hole (392) is smaller than the inner diameter of the filling pipe (37).

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