A ball bearing resistant to shock loads

Abstract

The present invention discloses an impact load resistant ball bearing, which relates to the technical field of bearings, and includes an inner steel ring, an outer steel ring, a ball and a retaining frame, wherein the ball is positioned between the inner steel ring and the outer steel ring through the retaining frame, and also includes a mounting mechanism and a refueling mechanism. The present invention provides a refueling mechanism, and injects lubricating oil into the oil storage tank through a refueling port, and the lubricating oil can flow into the connecting groove through the oil storage tank. When the first connecting frame and the second connecting frame are connected, the tooth block rotates into the circular groove, and the tooth block contacts the push rod, pushing the push rod to move, and the displacement of the push rod drives the movable frame to move, so that the circular hole is aligned with the oil outlet hole, so that the lubricating oil in the connecting groove can flow out through the oil outlet hole, and the lubricating oil flows into the oil inlet groove through the oil outlet hole, and then slowly flows into the ball groove through the diversion groove, so that the lubricating oil is stored in the oil storage tank, and the lubricating oil is automatically and slowly added to the ball, thereby reducing the frequency of adding lubricating oil to the bearing.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, in particular to an impact load resistant ball bearing. Background Art

[0002] A ball bearing is a type of rolling bearing. The ball is installed between the inner and outer steel rings. It can withstand large loads and is also called a ball bearing. Ball bearings are mainly composed of four basic components: balls, inner rings, outer rings, and retainers. Ball bearings have less rotational friction resistance than journal bearings, so at the same speed, the temperature generated by friction will be lower. However, when using ball bearings, it is usually necessary to add lubricating oil to them regularly. Multiple additions increase the workload of the operator. In order to reduce the frequency of adding lubricating oil to ball bearings, an impact load resistant ball bearing is provided. Summary of the invention

[0003] The object of the present invention is to provide a ball bearing resistant to impact loads in order to reduce the frequency of adding lubricating oil to the ball bearing.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an impact load resistant ball bearing, comprising an inner steel ring, an outer steel ring, a ball and a retaining frame, the inner steel ring is located on the inner side of the outer steel ring, the ball is positioned between the inner steel ring and the outer steel ring through the retaining frame, the inner steel ring and the outer steel ring are both provided with a slide groove for the ball to slide, the retaining frame is composed of a first connecting frame and a second connecting frame, the outer walls of the first connecting frame and the second connecting frame are provided with a ball groove for the ball to rotate, the first connecting frame and the second connecting frame are connected by a mounting mechanism, and lubricating oil is added to the ball through a refueling mechanism; the mounting mechanism includes a connecting rod, the connecting rod is fixedly connected to the outer wall of the first connecting frame, the outer wall of the connecting rod is provided with a circular groove, the outer wall of the second connecting frame is provided with a connecting groove for the connecting rod to be inserted, the interior of the second connecting frame is located at the inner wall of the connecting groove and is rotatably connected with a tooth block, and the outer wall of the tooth block is provided with a square groove.

[0005] As a further solution of the present invention: the installation mechanism also includes a gear ring, which is rotatably connected to the outer wall of the second connecting frame, the inner side of the second connecting frame is fixedly connected with a fixing seat, the inner side of the gear ring is fixedly connected with a fixing block, the outer wall of the fixing block is provided with a through hole, and the inner wall of the through hole is connected with a fixing bolt.

[0006] As a further scheme of the present invention: the refueling mechanism includes an oil storage tank, which is arranged inside the first connecting frame, and the outer wall of the first connecting frame is provided with a refueling port connected to the oil storage tank, the inner wall of the refueling port is connected to a sealing plug, the inner wall of the oil storage tank is provided with a connecting groove, and the connecting groove extends to the inside of the connecting rod, and the bottom end of the connecting rod is provided with an oil outlet hole connected to the connecting groove, the inside of the connecting rod is slidably connected with a movable frame passing through the oil outlet hole, a spring is connected between the movable frame and the connecting rod, a circular hole is provided on the outer wall of the movable frame, and the end of the movable frame away from the spring is fixedly connected with a push rod, one end of the push rod extends into the inner cavity of the circular groove, and the inside of the second connecting frame is provided with an oil inlet groove at the bottom end of the connecting groove, and the bottom end of the oil inlet groove is provided with a diversion groove.

[0007] As a further solution of the present invention: the outer wall of the connecting rod fits with the inner walls of the connecting groove and the square groove, and the cross-sectional shape of the remaining part of the connecting rod except the circular groove is square and corresponds to the cross-sectional shape and size of the square groove.

[0008] As a further solution of the present invention: the outer wall of the tooth block is provided with gear teeth, and the outer wall of the gear ring is provided with tooth grooves, and the tooth grooves are meshed with the gear teeth.

[0009] As a further solution of the present invention: a threaded hole is provided on the outer wall of the fixing seat, the threaded hole matches the fixing bolt, and the outer wall of the screw of the fixing bolt fits with the inner wall of the through hole.

[0010] As a further solution of the present invention: the outer wall of the sealing plug is provided with an external thread, the inner wall of the fuel filling port is provided with an internal thread, and the external thread matches the internal thread.

[0011] As a further solution of the present invention: one end of the push rod extending into the inner cavity of the circular groove is provided with a hemispherical surface.

[0012] As a further solution of the present invention: the oil inlet groove and the diverter groove are distributed in a T-shape, and the two ends of the diverter groove are respectively connected to the two ball grooves.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up the installation mechanism, when assembling the first connecting frame and the second connecting frame, the connecting rod is inserted into the connecting groove. In this process, the connecting rod passes through the square groove. After completion, the gear ring is rotated, and the gear ring rotates to drive the tooth block to rotate. The tooth block rotates into the circular groove, so that the tooth block is engaged with the connecting rod, and the first connecting frame and the second connecting frame are fixed; at this time, the gear ring rotates to drive the fixed block to move, and the fixed block moves to one end of the fixed seat, and the fixing bolt is passed through the through hole to connect with the fixed seat, so as to fix the position of the gear ring, facilitate the docking installation of the first connecting frame and the second connecting frame, and realize the efficient and stable assembly of the retaining frame. The present invention not only facilitates installation and the various parts are firmly connected by designing the structure of the retaining frame, but also can significantly improve the impact resistance of the bearing. During the use of the bearing, the balls can be evenly spaced, so that the balls are distributed at equal distances and the friction and wear between the balls are reduced, the strength of the bearing is improved, and the service life of the overall structure is extended.

[0015] 2. The present invention is also provided with a refueling mechanism, which injects lubricating oil into the oil storage tank through the refueling port, and the lubricating oil can flow into the connecting groove through the oil storage tank. When the first connecting frame and the second connecting frame are connected, the tooth block rotates into the circular groove, and the tooth block contacts the push rod, pushing the push rod to move. The displacement of the push rod drives the movable frame to move, so that the circular hole is aligned with the oil outlet hole, so that the lubricating oil in the connecting groove can flow out through the oil outlet hole, and the lubricating oil flows into the oil inlet tank through the oil outlet hole, and then slowly flows into the ball groove through the diversion groove to lubricate the ball. This design facilitates the storage of lubricating oil in the oil storage tank, and automatically and slowly adds lubricating oil to the ball, which reduces the frequency of adding lubricating oil to the bearing, so that the bearing has a longer continuous working time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the retainer of the present invention;

[0018] Figure 3 It is a schematic diagram of the installation of the ball of the present invention;

[0019] Figure 4 is a structural schematic diagram of a second connecting frame of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the first connecting frame of the present invention;

[0021] Figure 6 is a schematic diagram of the internal structure of the first connecting frame of the present invention;

[0022] Figure 7 It is a schematic diagram of the internal structure of the connecting rod of the present invention;

[0023] Figure 8 It is a schematic structural diagram of the oil inlet groove and the diversion groove of the present invention.

[0024] In the figure: 1. inner steel ring; 2. outer steel ring; 3. ball; 4. retaining frame; 5. first connecting frame; 6. second connecting frame; 7. mounting mechanism; 701. connecting rod; 702. circular groove; 703. connecting groove; 704. tooth block; 705. square groove; 706. tooth ring; 707. fixing seat; 708. fixing block; 709. through hole; 710. fixing bolt; 8. refueling mechanism; 801. oil storage tank; 802. refueling port; 803. sealing plug; 804. connecting groove; 805. oil outlet hole; 806. movable frame; 807. spring; 808. circular hole; 809. ejector rod; 810. oil inlet groove; 811. diverter groove; 9. ball groove; 10. slide groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0027] See also Figures 1 to 8In an embodiment of the present invention, an impact load resistant ball bearing includes an inner steel ring 1, an outer steel ring 2, a ball 3 and a retaining frame 4, the inner steel ring 1 is located on the inner side of the outer steel ring 2, the ball 3 is positioned between the inner steel ring 1 and the outer steel ring 2 through the retaining frame 4, the inner steel ring 1 and the outer steel ring 2 are both provided with a slide groove 10 for the ball 3 to slide, the retaining frame 4 is composed of a first connecting frame 5 and a second connecting frame 6, the outer walls of the first connecting frame 5 and the second connecting frame 6 are provided with a ball groove 9 for the ball 3 to rotate, the first connecting frame 5 and the second connecting frame 6 are connected by a mounting mechanism 7, and lubricating oil is added to the ball 3 through a refueling mechanism 8.

[0028] In this embodiment: when assembling the bearing, the ball 3 is placed in the ball groove 9 between the first connecting frame 5 and the second connecting frame 6, and then the connection and fixation between the first connecting frame 5 and the second connecting frame 6 are completed, and then the retaining frame 4 equipped with the ball 3 is obtained. The inner steel ring 1 is frozen and then pressed into the inner side of the retaining frame 4 so that the inner side of the ball 3 is located in the slide groove 10 of the inner steel ring 1; then the outer steel ring 2 is heated to 50-70 degrees Celsius to cause thermal expansion, and then the outer steel ring 2 is pressed onto the outer side of the retaining frame so that the outer side of the ball 3 is also located in the slide groove 10 of the outer steel ring 2. When the inner steel ring 1 and the outer steel ring 2 return to room temperature, the assembly of the bearing of the present invention is completed.

[0029] Please refer to Figures 3 to 5 The mounting mechanism 7 includes a connecting rod 701, which is fixedly connected to the outer wall of the first connecting frame 5. A circular groove 702 is provided on the outer wall of the connecting rod 701. A connecting groove 703 is provided on the outer wall of the second connecting frame 6 for inserting the connecting rod 701. A tooth block 704 is rotatably connected to the inner wall of the connecting groove 703 inside the second connecting frame 6. A square groove 705 is provided on the outer wall of the tooth block 704. The mounting mechanism 7 also includes a tooth ring 706, which is rotatably connected to the outer wall of the second connecting frame 6. A fixing seat is fixedly connected to the inner side of the second connecting frame 6. A fixing block 708 is fixedly connected to the inner side of the tooth ring 706. A through hole 709 is provided on the outer wall of the fixing block 708. A fixing bolt 710 is connected to the inner wall of the through hole 709.

[0030] In this embodiment: when docking the first connecting frame 5 and the second connecting frame 6, the connecting rod 701 is inserted into the connecting groove 703. During this process, the connecting rod 701 passes through the square groove 705. After completion, the gear ring 706 is rotated. The gear ring 706 rotates to drive the tooth block 704 to rotate. The tooth block 704 rotates so that the straight side wall of the square groove 705 enters the circular groove 702, so that the tooth block 704 engages with the connecting rod 701, and the first connecting frame 5 and the second connecting frame 6 are fixed. At this time, the gear ring 706 rotates to drive the fixing block 708 to move. The fixing block 708 moves to one end of the fixing seat 707, and the fixing bolt 710 is passed through the through hole 709 to connect with the fixing seat 707, thereby fixing the position of the gear ring 706, which is convenient for docking the first connecting frame 5 and the second connecting frame 6 and installing the retaining frame 4.

[0031] Please refer to Figure 6 to Figure 7 The refueling mechanism 8 includes an oil storage tank 801, which is provided inside the first connecting frame 5. The outer wall of the first connecting frame 5 is provided with a refueling port 802 connected to the oil storage tank 801. The inner wall of the refueling port 802 is connected with a sealing plug 803. The inner wall of the oil storage tank 801 is provided with a connecting groove 804, which extends to the inside of the connecting rod 701. The bottom end of the connecting rod 701 is provided with an oil outlet hole 805 connected to the connecting groove 804. The inside of the connecting rod 701 A movable frame 806 is slidably connected and passes through the oil outlet hole 805. A spring 807 is connected between the movable frame 806 and the connecting rod 701. A circular hole 808 is provided on the outer wall of the movable frame 806. An end of the movable frame 806 away from the spring 807 is fixedly connected to a push rod 809. One end of the push rod 809 extends into the inner cavity of the circular groove 702. An oil inlet groove 810 is provided at the bottom end of the connecting groove 703 inside the second connecting frame 6, and a diversion groove 811 is provided at the bottom end of the oil inlet groove 810.

[0032] In this embodiment, when adding lubricating oil, the sealing plug 803 is removed, and the lubricating oil is injected into the oil storage tank 801 through the filling port 802. The lubricating oil can flow into the connecting groove 804 through the oil storage tank 801. When the first connecting frame 5 is not connected to the second connecting frame 6, the movable frame 806 blocks the oil outlet hole 805 to prevent the lubricating oil in the connecting groove 804 from flowing out through the oil outlet hole 805; when the first connecting frame 5 and the second connecting frame 6 are connected, the inner side wall of the tooth block 704 rotates to enter the circular groove 702. , the tooth block 704 contacts the push rod 809, pushing the push rod 809 to move, and the displacement of the push rod 809 drives the movable frame 806 to move, so that the round hole 808 is aligned with the oil outlet hole 805, so that the lubricating oil in the connecting groove 804 can flow out through the oil outlet hole 805, and at this time the connecting rod 701 is located in the connecting groove 703, and the oil outlet hole 805 is located at one end of the oil inlet groove 810, and the lubricating oil in the connecting groove 804 flows into the oil inlet groove 810 through the oil outlet hole 805, and then slowly flows into the ball groove 9 through the diverter groove 811. This design facilitates the storage of lubricating oil in the oil storage tank 801, and automatically and slowly adds lubricating oil to the ball 3, which reduces the frequency of adding lubricating oil to the bearing, so that the bearing has a longer continuous working time.

[0033] Please refer to Figures 3 to 5 The outer wall of the connecting rod 701 fits with the inner walls of the connecting groove 703 and the square groove 705 . The cross-sectional shape of the remaining part of the connecting rod 701 except the circular groove 702 is square and corresponds to the cross-sectional shape and size of the square groove 705 .

[0034] In this embodiment, when the first connecting frame 5 and the second connecting frame 6 are connected, the connecting rod 701 is inserted into the connecting groove 703 . During this process, the connecting rod 701 passes through the square groove 705 , so that the tooth block 704 is located outside the circular groove 702 .

[0035] Please refer to Figures 4 to 5 The outer wall of the gear block 704 is provided with gear teeth, and the outer wall of the gear ring 706 is provided with tooth grooves, which mesh with the gear teeth.

[0036] In this embodiment, the gear ring 706 is rotated, and the gear ring 706 drives the gear block 704 to rotate, and the gear block 704 rotates into the circular groove 702, so that the gear block 704 is engaged with the connecting rod 701, and the first connecting frame 5 and the second connecting frame 6 are fixed.

[0037] Please refer to Figures 4 to 5 A threaded hole is provided on the outer wall of the fixing seat 707 , and the threaded hole matches the fixing bolt 710 , and the outer wall of the screw of the fixing bolt 710 fits with the inner wall of the through hole 709 .

[0038] In this embodiment: the rotation of the gear ring 706 drives the fixed block 708 to move, the fixed block 708 moves to one end of the fixed seat 707, and the fixing bolt 710 is passed through the through hole 709 to connect with the fixed seat 707, and the fixing bolt 710 is connected to the threaded hole, thereby fixing the position of the gear ring 706 to prevent relative rotation between the gear ring 706 and the second connecting frame 6.

[0039] Please refer to Figure 6 to Figure 7 The outer wall of the sealing plug 803 is provided with an external thread, and the inner wall of the fuel filling port 802 is provided with an internal thread, and the external thread matches the internal thread.

[0040] In this embodiment, when adding lubricating oil, the sealing plug 803 is removed, and the lubricating oil is injected into the oil storage tank 801 through the oil filling port 802, and the lubricating oil can flow into the connecting groove 804 through the oil storage tank 801; after completion, the sealing plug 803 is installed on the oil filling port 802 through the thread, and the oil filling port 802 is closed. When adding lubricating oil, there is no need to disassemble the bearing structure, and the operation is simple and convenient.

[0041] Please refer to Figures 7 and 8 One end of the push rod 809 extending into the inner cavity of the circular groove 702 is provided with a hemispherical surface.

[0042] In this embodiment: when the first connecting frame 5 is not connected to the second connecting frame 6, the movable frame 806 blocks the oil outlet hole 805 to prevent the lubricating oil in the connecting groove 804 from flowing out through the oil outlet hole 805; when the first connecting frame 5 and the second connecting frame 6 are connected, the tooth block 704 rotates into the circular groove 702, the tooth block 704 contacts the hemispherical surface of the push rod 809, and pushes the push rod 809 to move. The displacement of the push rod 809 drives the movable frame 806 to move, so that the circular hole 808 is aligned with the oil outlet hole 805, so that the lubricating oil in the connecting groove 804 can flow out through the oil outlet hole 805.

[0043] Please refer to Figures 7 and 8 The oil inlet groove 810 and the diverter groove 811 are distributed in a T shape, and the two ends of the diverter groove 811 are respectively connected to the two ball grooves 9.

[0044] In this embodiment: the lubricating oil in the connecting groove 804 can flow out through the oil outlet hole 805, and at this time the connecting rod 701 is connected to the connecting groove 703, the oil outlet hole 805 is located at one end of the oil inlet groove 810, and the lubricating oil in the connecting groove 804 flows into the oil inlet groove 810 through the oil outlet hole 805, and then slowly flows into the ball groove 9 through the diversion groove 811.

[0045] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An impact load resistant ball bearing, comprising an inner steel ring (1), an outer steel ring (2), a ball (3) and a retaining frame (4), wherein the inner steel ring (1) is located on the inner side of the outer steel ring (2), the ball (3) is positioned between the inner steel ring (1) and the outer steel ring (2) by the retaining frame (4), and the inner steel ring (1) and the outer steel ring (2) are both provided with a slide groove (10) for the ball (3) to slide, characterized in that: The retaining frame (4) is composed of a first connecting frame (5) and a second connecting frame (6); the outer walls of the first connecting frame (5) and the second connecting frame (6) are provided with ball grooves (9) for the balls (3) to rotate; the first connecting frame (5) and the second connecting frame (6) are connected via a mounting mechanism (7); lubricating oil is added to the balls (3) via a refueling mechanism (8); the mounting mechanism (7) comprises a connecting rod (701); the connecting rod (701) is fixedly connected to the outer wall of the first connecting frame (5); the outer wall of the connecting rod (701) is provided with a circular groove (702); the outer wall of the second connecting frame (6) is provided with a connecting groove (703) for the connecting rod (701) to be inserted; the interior of the second connecting frame (6) is rotatably connected to a tooth block (704) located on the inner wall of the connecting groove (703); the outer wall of the tooth block (704) is provided with a square groove (705); The mounting mechanism (7) further comprises a toothed ring (706), the toothed ring (706) being rotatably connected to the outer wall of the second connecting frame (6), a fixing seat (707) being fixedly connected to the inner side of the second connecting frame (6), a fixing block (708) being fixedly connected to the inner side of the toothed ring (706), a through hole (709) being formed on the outer wall of the fixing block (708), and a fixing bolt (710) being connected to the inner wall of the through hole (709); The refueling mechanism (8) comprises an oil storage tank (801), the oil storage tank (801) being arranged inside the first connecting frame (5), the outer wall of the first connecting frame (5) being provided with a refueling port (802) connected to the oil storage tank (801), the inner wall of the refueling port (802) being connected with a sealing plug (803), the inner wall of the oil storage tank (801) being provided with a connecting groove (804), the connecting groove (804) extending to the inside of the connecting rod (701), the bottom end of the connecting rod (701) being provided with an oil outlet hole (805) connected to the connecting groove (804), the inner wall of the connecting rod (701) being provided with an inner hole (805) connected to the connecting groove (804), The movable frame (806) is slidably connected to the connecting rod (701) and penetrates the oil outlet hole (805); a spring (807) is connected between the movable frame (806) and the connecting rod (701); a circular hole (808) is provided on the outer wall of the movable frame (806); an end of the movable frame (806) away from the spring (807) is fixedly connected to a push rod (809); one end of the push rod (809) extends into the inner cavity of the circular groove (702); an oil inlet groove (810) is provided inside the second connecting frame (6) at the bottom end of the connecting groove (703); and a diversion groove (811) is provided at the bottom end of the oil inlet groove (810).

2. The impact load resistant ball bearing according to claim 1, characterized in that: The outer wall of the connecting rod (701) fits with the inner walls of the connecting groove (703) and the square groove (705); the cross-sectional shape of the remaining part of the connecting rod (701) except the circular groove (702) is square and corresponds to the cross-sectional shape and size of the square groove (705).

3. The impact load resistant ball bearing according to claim 1, characterized in that: The outer wall of the tooth block (704) is provided with gear teeth, and the outer wall of the gear ring (706) is provided with tooth grooves, and the tooth grooves are meshed with the gear teeth.

4. The impact load resistant ball bearing according to claim 1, characterized in that: The outer wall of the fixing seat (707) is provided with a threaded hole, the threaded hole matches the fixing bolt (710), and the outer wall of the screw rod of the fixing bolt (710) fits with the inner wall of the through hole (709).

5. The impact load resistant ball bearing according to claim 1, characterized in that: The outer wall of the sealing plug (803) is provided with an external thread, and the inner wall of the refueling port (802) is provided with an internal thread, and the external thread matches the internal thread.

6. The impact load resistant ball bearing according to claim 1, characterized in that: One end of the push rod (809) extending into the inner cavity of the circular groove (702) is provided with a hemispherical surface.

7. The impact load resistant ball bearing according to claim 1, characterized in that: The oil inlet groove (810) and the diverter groove (811) are distributed in a T-shape, and two ends of the diverter groove (811) are respectively connected to the two ball grooves (9).

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