A bearing body that is easy to inject lubricating oil and does not leak

Abstract

The present invention relates to the field of bearings, and specifically to a bearing body that is easy to inject lubricating oil and does not leak, comprising: an inner ring body, an inner fixed rail fixedly connected above the inner ring body, an axial ball fittedly connected above the inner fixed rail, and a plurality of groups of axial balls fittedly connected above the inner fixed rail. The present invention forms a sealed space inside the bearing by cooperating between an outer L-shaped fixing ring and an inner L-shaped fixing ring with the inner ring body and the outer ring body, and exposes the connecting hole by pressing the oil outlet pipe of the lubricating oil filler against and pushing the connecting cylinder. At this time, the lubricating oil filler is pressed to allow the lubricating oil to enter the annular cavity along the connecting hole and enter the formed sealed space, thereby completing the rapid filling of the lubricating oil, and the mutual meshing of the gear ring 1 and the gear ring 2 ensures the sealing of the connection between the outer L-shaped fixing ring and the inner L-shaped fixing ring, without affecting the normal operation of the bearing, and preventing the leakage of lubricating oil.

Description

Technical Field

[0001] The invention relates to the field of bearings, and in particular to a bearing body which is easy to inject lubricating oil into and does not leak. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

[0003] During daily use, the bearing has a large internal friction coefficient, so it is generally necessary to add lubricating oil to the inside of the bearing through a lubricating oil filler to reduce its own friction coefficient. The existing filling method is generally to use the gap at the bearing connection to press and pressurize the lubricating oil inside the lubricating oil filler to fill the bearing inside, so as to ensure the lubrication of the bearing inside and increase its service life. However, the existing bearing body still has the following defects when filling:

[0004] During the filling process, since the bearing body is an integral whole, the lubricating oil is added little by little through its gaps, so the filling efficiency cannot be improved. After the filling is completed, it cannot be guaranteed that the lubricating oil can be well distributed inside the bearing, making the filling process more troublesome. In addition, due to the existence of the gaps, after filling, although the lubricating oil has a large viscosity, it still has a certain fluidity. In addition, the rolling of the internal shaft balls squeezes the lubricating oil, causing the lubricating oil to leak out along the gaps, resulting in a reduction in the amount of lubricating oil inside, which reduces the service life of the bearing.

[0005] Therefore, it is necessary to invent a bearing body that is easy to inject lubricating oil and does not leak to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a bearing body which is easy to inject lubricating oil and does not leak. By moving the connecting tube, the connecting hole can be exposed or hidden at any time, so that the lubricating oil can be filled into the inside of the bearing through the filling tube, and the inside of the bearing is sealed by the cooperation between the outer L-shaped fixing ring and the inner L-shaped fixing ring, and the sealing tightness is ensured by the meshing of the gear ring one and the gear ring two, so as to solve the problems of low efficiency and complicated operation of bearing lubricating oil filling and easy leakage of lubricating oil after filling in the prior art.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a bearing body that is easy to inject lubricating oil and does not leak, comprising: an inner ring body, an inner fixed rail is fixedly connected to the outer side of the inner ring body, an axial ball is closely connected to the outer side of the inner fixed rail, and a plurality of groups of axial balls are closely connected to the outer side of the inner fixed rail;

[0008] The outer side of the shaft ball is fitted with an outer fixed rail, the inner ring body is connected through the outer ring body, and the outer side of the outer fixed rail is fixedly connected with the outer ring body.

[0009] As a preferred solution of the present invention, an outer L-shaped fixing ring is fixedly connected to the inner side of the outer ring body, two groups of the outer L-shaped fixing rings are symmetrically installed on the inner side of the outer ring body, and the outer fixing rail is arranged between the two groups of outer L-shaped fixing rings.

[0010] As a preferred solution of the present invention, an inner L-shaped fixing ring is fixedly connected to the outer side of the inner ring body, and two groups of inner L-shaped fixing rings are symmetrically installed on the outer side of the inner ring body. The inner fixing rail is arranged between the two groups of inner L-shaped fixing rings, and the inner L-shaped fixing ring is clamped with the outer L-shaped fixing ring at the corner.

[0011] As a preferred solution of the present invention, a gear ring 1 is fixedly connected to the outer side of the inner L-shaped fixing ring at the corner, and four groups of gear ring 1 are fixed to the outer side of the inner L-shaped fixing ring at the corner, and guide holes are respectively opened in the gaps of the four groups of gear ring 1, and several groups of guide holes are opened in a ring-shaped distribution in the gaps of the four groups of gear ring 1, and a guide groove is opened above the guide hole, and the guide groove is opened on the side of the inner L-shaped fixing ring away from the gear ring 1.

[0012] As a preferred solution of the present invention, a second gear ring is fixedly connected to the inner side of the corner of the outer L-shaped fixing ring, and three groups of the second gear ring are fixedly connected to the inner side of the corner of the outer L-shaped fixing ring, and the three groups of the second gear ring are meshed with the gap of the fourth group of the first gear ring.

[0013] As a preferred solution of the present invention, a filling cylinder is passed through and fixedly connected to one side of the outer L-shaped fixing ring, an annular groove is provided on the inner wall of the filling cylinder, a guide column is fixedly connected to the inner wall of the filling cylinder, a spring is sleeved on the guide column, a connecting cylinder is fitly connected to one side of the spring, the connecting cylinder is passed through and connected to the filling cylinder, and the connecting cylinder is sleeved on the guide column.

[0014] As a preferred solution of the present invention, a trapezoidal block is fixedly connected to the side of the connecting tube away from the guide column, a cylindrical tube is sleeved and fixed on the connecting tube, and the cylindrical tube is slidably connected in the annular groove.

[0015] As a preferred solution of the present invention, a rubber ring 1 is fixedly connected to one side of the cylindrical tube, and the rubber ring 1 fits with the inner wall of the annular groove. A rubber ring 2 is fitly connected to the side of the cylindrical tube away from the rubber ring 1, and a rubber sleeve is fixedly connected to the cylindrical tube.

[0016] As a preferred solution of the present invention, a connecting hole is fitted and connected to one side of the rubber sleeve, and the connecting hole is opened on the inner wall of the annular groove. Three groups of connecting holes are opened on the inner wall of the annular groove, and the three groups of connecting holes form a group and are opened in an annular distribution on the inner wall of the annular groove. An annular cavity is opened inside the filling cylinder, and the annular cavity is through-connected with all the connecting holes, and the opening direction of the annular cavity is set on the side of the shaft ball.

[0017] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0018] A sealed space is formed inside the bearing through the cooperation between the outer L-shaped fixing ring and the inner L-shaped fixing ring and the inner ring body and the outer ring body. The connecting hole is exposed by pressing the oil outlet pipe of the lubricating oil filler against and pushing the connecting tube. At this time, the lubricating oil filler is pressed to allow the lubricating oil to flow into the annular cavity along the connecting hole and into the formed sealed space, thereby completing the rapid filling of the lubricating oil. The mutual engagement of the gear ring 1 and the gear ring 2 ensures the sealing of the connection between the outer L-shaped fixing ring and the inner L-shaped fixing ring without affecting the normal operation of the bearing and preventing the leakage of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall sliced ​​structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the outer ring structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the inner ring structure of the present invention;

[0024] Figure 5 It is a schematic cross-sectional view of the inner L-shaped fixing ring of the present invention;

[0025] Figure 6 This is a schematic diagram of the disassembled structure of the filling cylinder of the present invention;

[0026] Figure 7 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0027] Figure 8 For the present invention Figure 1Enlarged structural diagram at B in the middle.

[0028] Description of reference numerals:

[0029] 1. Inner ring; 2. Shaft ball; 3. Outer ring; 4. Outer L-shaped fixing ring; 5. Inner L-shaped fixing ring; 6. Gear ring 1; 7. Guide hole; 8. Guide groove; 9. Gear ring 2; 10. Filling cylinder; 11. Annular groove; 12. Guide column; 13. Spring; 14. Connecting cylinder; 15. Trapezoidal block; 16. Cylindrical cylinder; 17. Rubber ring 1; 18. Rubber ring 2; 19. Rubber sleeve; 20. Connecting hole; 21. Annular cavity; 22. Inner fixing rail; 23. Outer fixing rail. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The present invention provides Figure 1-8 The bearing body shown is easy to inject lubricating oil without leakage, comprising: an inner ring body 1, an inner fixed rail 22 is fixedly connected to the outer side of the inner ring body 1, an axial ball 2 is closely connected to the outer side of the inner fixed rail 22, and a plurality of groups of axial balls 2 are closely connected to the outer side of the inner fixed rail 22;

[0032] The outer side of the shaft ball 2 is fitted with an outer fixed rail 23 , the inner ring body 1 is connected through the outer ring body 3 , and the outer side of the outer fixed rail 23 is fixedly connected with the outer ring body 3 .

[0033] In the above structure, the shaft ball 2 is fixed between the inner ring body 1 and the outer ring body 3 by the cooperation of the inner fixed rail 22 and the outer fixed rail 23 .

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an outer L-shaped fixing ring 4 is fixedly connected to the inner side of the outer ring body 3 , and two groups of outer L-shaped fixing rings 4 are symmetrically installed on the inner side of the outer ring body 3 , and the outer fixing rail 23 is arranged between the two groups of outer L-shaped fixing rings 4 .

[0035] like Figure 1 , Figure 3 and Figure 8 As shown, an inner L-shaped fixing ring 5 is fixedly connected to the outer side of the inner ring body 1. Two groups of inner L-shaped fixing rings 5 ​​are symmetrically installed on the outer side of the inner ring body 1. The inner fixing rail 22 is arranged between the two groups of inner L-shaped fixing rings 5. The inner L-shaped fixing ring 5 is clamped at the corner with the outer L-shaped fixing ring 4.

[0036] In the above structure, a sealed space is formed between the inner ring body 1 and the outer ring body 3 by the clamping of the two groups of outer L-shaped fixing rings 4 and the two groups of inner L-shaped fixing rings 5 ​​.

[0037] like Figure 1 , Figure 5 and Figure 8 As shown, a toothed ring 6 is fixedly connected to the outer side of the folded corner of the inner L-shaped fixing ring 5, and four groups of toothed rings 6 are fixed to the outer side of the folded corner of the inner L-shaped fixing ring 5. The gaps of the four groups of toothed rings 6 are respectively provided with guide holes 7, and several groups of guide holes 7 are distributed in a ring shape at the gaps of the four groups of toothed rings 6. A guide groove 8 is provided above the guide holes 7, and the guide groove 8 is provided on the side of the inner L-shaped fixing ring 5 away from the toothed ring 6.

[0038] In the above structure, through the guide groove 8, when the shaft ball 2 squeezes the lubricating oil during rolling, the lubricating oil in the sealed space can be guided into the guide hole 7, and the aperture of the guide hole 7 is 0.5 mm.

[0039] like Figure 3 , Figure 5 and Figure 8 As shown, a gear ring 2 9 is fixedly connected to the inner side of the corner of the outer L-shaped fixing ring 4, and three groups of gear rings 2 9 are fixedly connected to the inner side of the corner of the outer L-shaped fixing ring 4, and the three groups of gear rings 2 9 are meshed with the gaps of the four groups of gear rings 1 6.

[0040] In the above structure, the sealing of the sealing space is ensured by the meshing of gear ring 2 9 and gear ring 1 6, and a small amount of lubricating oil is introduced into the meshing part through the guide hole 7 to ensure its lubrication and prevent wear caused by friction between gear ring 2 9 and gear ring 1 6 during rotation, and the meshing state of gear ring 2 9 and gear ring 1 6 is relatively tight.

[0041] like Figure 1 , Figure 3 , Figure 6 and Figure 7 As shown, a filling cylinder 10 is passed through and fixedly connected to one side of the outer L-shaped fixing ring 4, an annular groove 11 is opened on the inner wall of the filling cylinder 10, a guide column 12 is fixedly connected to the inner wall of the filling cylinder 10, a spring 13 is sleeved on the guide column 12, and a connecting cylinder 14 is fittedly connected to one side of the spring 13, the connecting cylinder 14 is passed through and connected to the filling cylinder 10, and the connecting cylinder 14 is sleeved on the guide column 12.

[0042] In the above structure, the spring 13 can push the connecting tube 14 to slide along the guide column 12 .

[0043] like Figure 6 and Figure 7 As shown, a trapezoidal block 15 is fixedly connected to the connecting cylinder 14 at one side away from the guide column 12 , a cylindrical cylinder 16 is sleeved and fixed on the connecting cylinder 14 , and the cylindrical cylinder 16 is slidably connected in the annular groove 11 .

[0044] In the above structure, due to the slope of one side of the trapezoidal block 15, when the oil outlet pipe of the lubricating oil filler abuts against the slope of one side of the trapezoidal block 15, the oil can be squeezed out normally without being blocked.

[0045] like Figure 6 and Figure 7 As shown, a rubber ring 17 is fixedly connected to one side of the cylindrical tube 16, and the rubber ring 17 fits with the inner wall of the annular groove 11. A rubber ring 2 18 is fitly connected to the side of the cylindrical tube 16 away from the rubber ring 17, and a rubber sleeve 19 is sleeved and fixedly connected to the cylindrical tube 16.

[0046] In the above structure, when the spring 13 pushes the connecting tube 14, it drives the rubber ring 17 to fit on one side of the annular groove 11, ensuring the sealing between the inside of the filling tube 10 and the outside, and when the lubricating oil is added, the connecting tube 14 slides along the guide column 12 to squeeze the spring 13, so that the rubber ring 2 18 fits on the other side of the annular groove 11, ensuring the sealing of the spring 13 and the connecting tube 14 and the guide column 12, preventing the lubricating oil from flowing in and affecting the normal movement of the connecting tube 14.

[0047] like Figure 6 and Figure 7 As shown, a connecting hole 20 is fitted and connected to one side of the rubber sleeve 19. The connecting hole 20 is opened on the inner wall of the annular groove 11. There are three groups of connecting holes 20 on the inner wall of the annular groove 11. The three groups of connecting holes 20 form a group and are opened in a circular shape on the inner wall of the annular groove 11. An annular cavity 21 is opened inside the filling cylinder 10. The annular cavity 21 is connected with all the connecting holes 20, and the opening direction of the annular cavity 21 is set on one side of the shaft ball 2.

[0048] In the above structure, when the connecting tube 14 moves, it will drive the rubber sleeve 19 to detach from the connecting hole 20, exposing the connecting hole 20 below. At this time, the lubricating oil can enter the annular cavity 21 through the connecting hole 20 and finally enter the sealing space where the shaft ball 2 is located.

[0049] The specific implementation mode of the present invention is as follows Figure 1-8As shown: the oil outlet pipe of the lubricating oil filler is extended into the filling cylinder 10, and the lubricating oil filler is pushed at this time, so that the oil outlet pipe is against the trapezoidal block 15, so that the connecting cylinder 14 moves along the guide column 12 and squeezes the spring 13, and at the same time, the cylindrical cylinder 16 slides along the annular groove 11, so that the connecting cylinder 14 drives the rubber ring 17 to separate from one side of the inner wall of the annular groove 11, and the connecting cylinder 14 drives the rubber ring 2 18 to fit to the other side of the inner wall of the annular groove 11. At this time, the connection between the connecting cylinder 14 and the guide column 12 and the spring 13 form a sealed space, and the movement of the connecting cylinder 14 drives the rubber sleeve The cylinder 19 is removed from the connecting hole 20 to expose the connecting hole 20. At this time, the lubricating oil filler is pressed. Due to the shape of the trapezoidal block 15, the lubricating oil can flow into the annular groove 11 evenly from both sides of the trapezoidal block 15, and through subsequent extrusion, the lubricating oil flows into the annular cavity 21 along the connecting hole 20, and finally flows into the closed space formed by the outer L-shaped fixing ring 4 and the inner L-shaped fixing ring 5. After the filling is completed, the oil outlet pipe is withdrawn. At this time, the spring 13 will push the connecting cylinder 14 to reset along the guide column 12, so that the rubber sleeve 19 will press against the connecting hole 20 to block the connecting hole 20. The outer L-shaped fixing ring 4 and the inner L-shaped fixing ring 5 are connected to each other, and the outer L-shaped fixing ring 5 is connected to the outer ring body 1 and the outer ring body 3. When the bearing rotates, the outer L-shaped fixing ring 4 and the inner L-shaped fixing ring 5 rotate with the inner ring body 1 and the outer ring body 3. At this time, the internal lubricating oil lubricates the contact surface between the shaft ball 2 and the inner fixed rail 22 and the outer fixed rail 23. When the shaft ball 2 moves When the outer L-shaped fixing ring 4 and the inner L-shaped fixing ring 5 are rotated, the lubricating oil will be squeezed to a certain extent, and the lubricating oil will be squeezed to the connection between the outer L-shaped fixing ring 4 and the inner L-shaped fixing ring 5. At this time, due to the movement of the inner L-shaped fixing ring 5, the guide groove 8 can absorb the squeezed lubricating oil into its interior and enter the meshing part of the gear ring 1 6 and the gear ring 2 9 along the guide hole 7 to lubricate the two and prevent the friction between the two during the rotation process. In addition, since the two are closely meshed, before the lubricating oil at the meshing part is consumed, the guide groove 8 and the guide hole 7 will be in a state of lubricating oil blockage to ensure that the lubricating oil will not leak.

[0050] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bearing body that is easy to inject lubricating oil into and does not leak, comprising: The inner ring body (1) is characterized in that: an inner fixed rail (22) is fixedly connected to the upper part of the inner ring body (1), an axle ball (2) is fitted and connected to the upper part of the inner fixed rail (22), and a plurality of groups of axle balls (2) are fitted and connected to the upper part of the inner fixed rail (22); An outer fixed rail (23) is fitted and connected above the shaft ball (2), the inner ring body (1) is connected through the outer ring body (3), and the outer ring body (3) is fixedly connected above the outer fixed rail (23); An inner L-shaped fixing ring (5) is fixedly connected above the inner ring body (1). Two groups of the inner L-shaped fixing ring (5) are symmetrically installed above the inner ring body (1). The inner fixing rail (22) is arranged between the two groups of inner L-shaped fixing rings (5). The inner L-shaped fixing ring (5) is clamped at the corner of the outer L-shaped fixing ring (4). A gear ring (6) is fixedly connected to the outer side of the corner of the inner L-shaped fixing ring (5). Four groups of gear ring (6) are fixed on the outer side of the corner of the inner L-shaped fixing ring (5). The gaps of the four groups of gear rings (6) are respectively provided with guide holes (7). Several groups of the guide holes (7) are arranged in an annular distribution at the gaps of the four groups of gear rings (6). A guide groove (8) is arranged above the guide hole (7). The guide groove (8) is arranged on the side of the inner L-shaped fixing ring (5) away from the gear ring (6). An outer L-shaped fixing ring (4) is fixedly connected to the inner wall of the outer ring body (3), two groups of the outer L-shaped fixing ring (4) are symmetrically installed on the inner wall of the outer ring body (3), and the outer fixing rail (23) is arranged between the two groups of the outer L-shaped fixing ring (4); A second gear ring (9) is fixedly connected to the inner side of the corner of the outer L-shaped fixing ring (4), and three groups of the second gear ring (9) are fixedly connected to the inner side of the corner of the outer L-shaped fixing ring (4). The three groups of the second gear ring (9) are meshed with the gaps of the four groups of the first gear ring (6), and through the guide groove (8), when the shaft ball (2) rolls and squeezes the lubricating oil, the lubricating oil in the sealed space can be guided into the guide hole (7).

2. A bearing body that is easy to inject lubricating oil into and does not leak according to claim 1, characterized in that: A filling cylinder (10) is fixedly connected to one side of the outer L-shaped fixing ring (4), an annular groove (11) is provided on the inner wall of the filling cylinder (10), a guide column (12) is fixedly connected to the inner wall of the filling cylinder (10), a spring (13) is sleeved on the guide column (12), a connecting cylinder (14) is fittedly connected to one side of the spring (13), the connecting cylinder (14) is connected to the filling cylinder (10) through the connecting cylinder (14), and the connecting cylinder (14) is sleeved on the guide column (12).

3. A bearing body that is easy to inject lubricating oil into and does not leak according to claim 2, characterized in that: A trapezoidal block (15) is fixedly connected to the side of the connecting tube (14) away from the guide column (12), a cylindrical tube (16) is sleeved and fixed on the connecting tube (14), and the cylindrical tube (16) is slidably connected in the annular groove (11).

4. A bearing body that is easy to inject lubricating oil into without leakage according to claim 3, characterized in that: A rubber ring 1 (17) is fixedly connected to one side of the cylindrical tube (16), and the rubber ring 1 (17) is fitted with the inner wall of the annular groove (11). A rubber ring 2 (18) is fitted to the side of the cylindrical tube (16) away from the rubber ring 1 (17), and a rubber sleeve (19) is sleeved and fixedly connected to the cylindrical tube (16).

5. A bearing body that is easy to inject lubricating oil into and does not leak according to claim 4, characterized in that: A connecting hole (20) is fitted and connected to one side of the rubber sleeve (19), and the connecting hole (20) is opened on the inner wall of the annular groove (11). Three groups of connecting holes (20) are opened on the inner wall of the annular groove (11), and the three groups of connecting holes (20) form a group and are opened in an annular distribution on the inner wall of the annular groove (11). An annular cavity (21) is opened inside the filling cylinder (10), and the annular cavity (21) is connected to all the connecting holes (20), and the opening direction of the annular cavity (21) is set on one side of the shaft ball (2).

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