Bearing lubrication structure

Abstract

The utility model discloses a bearing lubricating structure which comprises a roller wheel and a roller shaft. The roller is provided with an inner cavity and connecting cavities, the inner cavity extends in the axis direction of the roller, the two ends of the inner cavity are communicated with the two connecting cavities respectively, bearings are arranged in the connecting cavities and divide the connecting cavities into first areas and second areas, the second areas are communicated with the inner cavity, and the first areas are located on the sides, away from the inner cavity, of the bearings. The roller shaft penetrates through the bearing to be rotationally connected to the roller wheel, an oil injection nozzle is arranged at one end of the roller shaft, a grease adding channel is formed in the roller shaft, and the two ends of the grease adding channel are communicated with the oil injection nozzle and the first area respectively. When new lubricating grease needs to be added, the bearing does not need to be independently disassembled for greasing and then reassembled; old lubricating grease can be stored in the inner cavity, after new lubricating grease is added many times, the mechanism is disassembled to clean the old lubricating grease, the frequency of disassembling the mechanism is reduced, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing lubrication, in particular to a bearing lubrication structure. Background Art

[0002] In order to ensure that various fixed-axis moving roller mechanisms have a long life cycle, it is necessary to add grease to the bearings of the mechanism from time to time. Ordinary deep groove ball bearings, roller bearings and other oil-free bearings need to be injected with grease from the side toward the roller. For such bearings, when new grease is needed, the bearing needs to be removed from the entire mechanism, the aged grease in the bearing needs to be cleaned with a detergent, and then the new grease is filled into the roller, and finally the bearing is installed back into the mechanism. This greasing method is complicated and cumbersome. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model proposes a bearing lubrication structure.

[0004] The utility model embodiment provides a bearing lubrication structure, the bearing lubrication structure comprising:

[0005] A roller, wherein the roller has an inner cavity and a connecting cavity, the inner cavity extends along the axis direction of the roller, two ends of the inner cavity are respectively connected with the two connecting cavities, a bearing is arranged in the connecting cavity, the bearing separates the connecting cavity into a first area and a second area, the second area is connected with the inner cavity, the first area is located on a side of the bearing away from the inner cavity, and the second area is located between the bearing and the inner cavity;

[0006] A roller shaft is inserted into the bearing to be rotatably connected to the roller wheel. An oiling nozzle is provided at one end of the roller shaft. A grease adding channel is provided inside the roller shaft. Both ends of the grease adding channel are respectively connected to the oiling nozzle and the first area.

[0007] The bearing lubrication structure according to the embodiment of the utility model has at least the following technical effects: when new grease needs to be added, the new grease is injected into the grease adding channel through the grease nozzle, and the new grease enters the first area through the grease adding channel, and then the new grease is pressed into the bearing, while the old grease in the bearing is squeezed out of the bearing and enters the second area, and then the old grease enters the inner cavity and is temporarily stored; when new grease needs to be added, there is no need to disassemble the bearing separately, grease it, and then reassemble it; the old grease can be stored in the inner cavity, and after adding new grease multiple times, the mechanism is disassembled to clean the old grease, thereby reducing the number of times the mechanism is disassembled, saving time and effort.

[0008] According to some embodiments of the present invention, the greasing channel includes a first channel and a plurality of second channels, the first channel is connected to the greasing nozzle, and the second channels are respectively connected to the first channel and the first area.

[0009] According to some embodiments of the present invention, the first channel extends along the axial direction of the roller shaft, and the second channel extends along the radial direction of the roller shaft.

[0010] According to some embodiments of the utility model, a countersunk hole is provided at one end of the roller shaft, the countersunk hole is connected to the greasing channel, and the grease nozzle is arranged in the countersunk hole.

[0011] According to some embodiments of the utility model, the roller includes a wheel sleeve and two connecting rings, the connecting rings are located in the cavity of the wheel sleeve, the two connecting rings are respectively located at two ends of the wheel sleeve, the connecting rings are fixedly connected to the wheel sleeve, and the cavity of the connecting rings constitutes the connecting cavity.

[0012] According to some embodiments of the utility model, the inner circumferential wall of the connecting ring is provided with an annular protrusion and a first annular groove, the first annular groove is located on the side of the annular protrusion away from the inner cavity, the bearing is located between the first annular groove and the annular protrusion, and a first retaining spring is inserted into the first annular groove, and the first retaining spring and the annular protrusion jointly limit the axial movement of the bearing.

[0013] According to some embodiments of the utility model, an annular oil storage cover is provided between the first retaining ring and the bearing, the inner side of the annular oil storage cover abuts against the roller shaft, and the outer side of the annular oil storage cover abuts against the inner wall of the connecting ring, and the first area is formed between the annular oil storage cover and the bearing.

[0014] According to some embodiments of the utility model, a rotating sealing ring is sleeved on the outer peripheral wall of the roller shaft, a second annular groove is provided on the inner side of the annular oil storage cover, and the rotating sealing ring is inserted into the second annular groove.

[0015] According to some embodiments of the utility model, a sealing gasket is provided between the annular oil storage cover and the bearing, and the sealing gasket abuts against the bearing and the annular oil storage cover respectively.

[0016] According to some embodiments of the utility model, an end cover is provided at one end of the roller, a third annular groove is provided on the outer peripheral wall of the roller shaft, a second retaining spring is inserted into the third annular groove, and the end cover is located on a side of the second retaining spring close to the first area.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of the bearing lubrication structure of some embodiments of the utility model;

[0020] Figure 2 is an exploded view of the bearing lubrication structure of some embodiments of the utility model;

[0021] Figure 3 is a cross-sectional view of a bearing lubrication structure of some embodiments of the utility model;

[0022] Figure 4 yes Figure 3 An enlarged schematic diagram of point A.

[0023] Figure Number:

[0024] Roller 100, inner cavity 110, connecting cavity 120, first area 121, second area 122, bearing 130;

[0025] Roller 200, oiling nozzle 210, grease channel 220, first channel 221, second channel 222, counterbore 230;

[0026] The wheel sleeve 300 , the connecting ring 310 , the annular protrusion 311 , the first annular groove 320 , the first retaining spring 321 , the annular oil storage cover 330 , the second annular groove 340 , the rotating sealing ring 341 , the sealing gasket 350 , the end cover 360 , the third annular groove 370 , and the second retaining spring 371 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0032] According to some embodiments of the present invention, referring to Figures 1 to 4 The bearing lubrication structure includes a roller 100 and a roller shaft 200. The axial directions of the roller 100 and the roller shaft 200 are both in the up-down direction. The roller 100 has an inner cavity 110 and a connecting cavity 120. The inner cavity 110 extends along the axial direction of the roller 100. The upper and lower ends of the inner cavity 110 are respectively connected to the two connecting cavities 120. A bearing 130 is arranged in the connecting cavity 120. The bearing 130 separates the connecting cavity 120 into a first area 121 and a second area 122. The second area 122 is directly connected to the inner cavity 110. The first area 121 is located on the side of the bearing 130 away from the inner cavity 110, and the second area 122 is located between the bearing 130 and the inner cavity 110. The roller shaft 200 is inserted into the bearing 130 to be rotatably connected to the roller 100. The inner peripheral wall of the bearing 130 is pressed against the roller shaft 200, and the outer peripheral wall of the bearing 130 is pressed against the roller 100. An oiling nozzle 210 is disposed at one end of the roller shaft 200 , and a grease passage 220 is disposed inside the roller shaft 200 . Both ends of the grease passage 220 are respectively connected to the oiling nozzle 210 and the first area 121 .

[0033] When new grease needs to be added, the new grease is injected into the grease channel 220 through the grease nozzle 210, and the new grease enters the first area 121 through the grease channel 220. Subsequently, the new grease is pressed into the ball channel of the bearing 130 to lubricate the balls, and the old grease in the bearing 130 is squeezed out of the bearing 130 and enters the second area 122. Subsequently, the old grease enters the inner cavity 110 and is temporarily stored. It can be understood that when new grease needs to be added, there is no need to disassemble the bearing 130 separately for grease and then reassemble it. The old grease is directly stored in the inner cavity 110. After adding new grease multiple times, the mechanism is disassembled to clean the old grease, avoiding the need to disassemble the mechanism every time new grease is added, reducing the number of times the mechanism is disassembled, saving time and effort.

[0034] According to some embodiments of the present invention, referring to Figure 4 The grease channel 220 includes a first channel 221 and a plurality of second channels 222. The first channel 221 is connected to the grease injection nozzle 210, and the second channels 222 are respectively connected to the first channel 221 and the first region 121. The first channel 221 extends along the axial direction of the roller shaft 200, and the second channel 222 extends along the radial direction of the roller shaft 200. After the new grease enters the first channel 221 through the grease injection nozzle 210, the new grease is divided and flows into the plurality of second channels 222, so that the new grease can be evenly distributed in the first region 121, thereby improving the efficiency of the new grease entering the bearing 130.

[0035] Preferably, refer to Figure 4 A countersunk hole 230 is provided at one end of the roller shaft 200, and the countersunk hole 230 is communicated with the grease passage 220. The oiling nozzle 210 is arranged in the countersunk hole 230, so as to prevent the oiling nozzle 210 from being damaged by collision.

[0036] According to some embodiments of the present invention, referring to Figure 3 The roller 100 includes a wheel sleeve 300 and two connecting rings 310 . The connecting ring 310 is located in the cavity of the wheel sleeve 300 . The two connecting rings 310 are respectively located at two ends of the wheel sleeve 300 . The connecting ring 310 is fixedly connected to the wheel sleeve 300 . The cavity of the connecting ring 310 constitutes a connecting cavity 120 .

[0037] Further, see Figure 2 and Figure 4 The inner circumferential wall of the connecting ring 310 is provided with an annular protrusion 311 and a first annular groove 320. The first annular groove 320 is located on the side of the annular protrusion 311 away from the inner cavity 110. The bearing 130 is located between the first annular groove 320 and the annular protrusion 311. The first retaining spring 321 is inserted into the first annular groove 320. The first retaining spring 321 cooperates with the annular protrusion 311 to limit the axial movement of the bearing 130.

[0038] Further, see Figure 2 and Figure 4 An annular oil reservoir cover 330 is provided between the first circlip 321 and the bearing 130, the inner side of the annular oil reservoir cover 330 abuts against the roller shaft 200, the outer side of the annular oil reservoir cover 330 abuts against the inner side wall of the connecting ring 310, and the annular oil reservoir cover 330 and the bearing 130 form a first area 121. It can be understood that when new grease enters the first area 121, the annular oil reservoir cover 330 can prevent the new grease from moving away from the bearing 130, so as to ensure that the new grease can enter the bearing 130.

[0039] Further, see Figure 2 and Figure 4A rotating seal ring 341 is sleeved on the outer peripheral wall of the roller shaft 200, and a second annular groove 340 is provided on the inner side of the annular oil storage cover 330. The rotating seal ring 341 is inserted into the second annular groove 340 to prevent new grease from being discharged from the gap between the roller shaft 200 and the annular oil storage cover 330 in a direction away from the bearing 130.

[0040] Further, see Figure 2 and Figure 4 A sealing gasket 350 is provided between the annular oil reservoir cover 330 and the bearing 130 , and the sealing gasket 350 abuts against the bearing 130 and the annular oil reservoir cover 330 respectively to prevent the new grease from moving from the gap between the annular oil reservoir cover 330 and the bearing 130 to a direction away from the bearing 130 .

[0041] Further, see Figure 2 and Figure 4 An end cover 360 is provided at one end of the roller 100, a third annular groove 370 is provided on the outer peripheral wall of the roller shaft 200, and a second retaining spring 371 is provided in the third annular groove 370. The end cover 360 is located on the side of the second retaining spring 371 close to the first area 121. The second retaining spring 371 can limit the movement of the end cover 360 in the direction away from the inner cavity 110 to prevent the end cover 360 from detaching from the roller shaft 200. The end cover 360 can play a role in dust and water prevention.

[0042] In the description of this specification, the description with reference to the term "some embodiments" 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.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bearing lubrication structure, characterized in that: include: A roller (100), the roller (100) comprising an inner cavity (110) and a connecting cavity (120), the inner cavity (110) extending along the axial direction of the roller (100), the two ends of the inner cavity (110) being respectively connected to the two connecting cavities (120), a bearing (130) being arranged in the connecting cavity (120), the bearing (130) dividing the connecting cavity (120) into a first area (121) and a second area (122), the second area (122) being connected to the inner cavity (110), the first area (121) being located on a side of the bearing (130) away from the inner cavity (110), and the second area (122) being located between the bearing (130) and the inner cavity (110); A roller shaft (200) is inserted into the bearing (130) to be rotatably connected to the roller wheel (100), an oiling nozzle (210) is provided at one end of the roller shaft (200), a greasing channel (220) is provided inside the roller shaft (200), and two ends of the greasing channel (220) are respectively connected to the oiling nozzle (210) and the first area (121).

2. The bearing lubrication structure according to claim 1, characterized in that: The greasing channel (220) comprises a first channel (221) and a plurality of second channels (222), wherein the first channel (221) is in communication with the greasing nozzle (210), and the second channels (222) are respectively in communication with the first channel (221) and the first area (121).

3. The bearing lubrication structure according to claim 2, characterized in that: The first channel (221) extends along the axial direction of the roller shaft (200), and the second channel (222) extends along the radial direction of the roller shaft (200).

4. The bearing lubrication structure according to claim 1, characterized in that: A countersunk hole (230) is provided at one end of the roller shaft (200), the countersunk hole (230) is communicated with the greasing channel (220), and the greasing nozzle (210) is arranged in the countersunk hole (230).

5. The bearing lubrication structure according to claim 1, characterized in that: The roller (100) comprises a wheel sleeve (300) and two connecting rings (310), wherein the connecting ring (310) is located in a cavity of the wheel sleeve (300), the two connecting rings (310) are respectively located at two ends of the wheel sleeve (300), the connecting ring (310) is fixedly connected to the wheel sleeve (300), and the cavity of the connecting ring (310) constitutes the connecting cavity (120).

6. The bearing lubrication structure according to claim 5, characterized in that: The inner peripheral wall of the connecting ring (310) is provided with an annular protrusion (311) and a first annular groove (320), wherein the first annular groove (320) is located on the side of the annular protrusion (311) away from the inner cavity (110), and the bearing (130) is located between the first annular groove (320) and the annular protrusion (311), and a first retaining spring (321) is inserted into the first annular groove (320), and the first retaining spring (321) and the annular protrusion (311) jointly limit the axial movement of the bearing (130).

7. The bearing lubrication structure according to claim 6, characterized in that: An annular oil storage cover (330) is provided between the first retaining ring (321) and the bearing (130), the inner side of the annular oil storage cover (330) abuts against the roller shaft (200), and the outer side of the annular oil storage cover (330) abuts against the inner wall of the connecting ring (310), and the first area (121) is formed between the annular oil storage cover (330) and the bearing (130).

8. The bearing lubrication structure according to claim 7, characterized in that: A rotating seal ring (341) is sleeved on the outer peripheral wall of the roller shaft (200), a second annular groove (340) is provided on the inner side of the annular oil storage cover (330), and the rotating seal ring (341) is inserted into the second annular groove (340).

9. The bearing lubrication structure according to claim 7, characterized in that: A sealing gasket (350) is provided between the annular oil storage cover (330) and the bearing (130), and the sealing gasket (350) abuts against the bearing (130) and the annular oil storage cover (330) respectively.

10. The bearing lubrication structure according to claim 1, characterized in that: An end cover (360) is provided at one end of the roller (100), a third annular groove (370) is provided on the outer peripheral wall of the roller shaft (200), a second retaining spring (371) is inserted into the third annular groove (370), and the end cover (360) is located on a side of the second retaining spring (371) close to the first area (121).

Images