Integrated bearing structure

Abstract

The utility model relates to the technical field of transmission structures, in particular to an integrated bearing structure, which comprises an outer mounting shaft, an inner rotating part and balls, the outer mounting shaft is provided with a positioning hole, a ball hole and an oil filling hole, the positioning hole is arranged on the end face of a movable connecting end of the outer mounting shaft, a rolling groove is arranged on the inner wall of the positioning hole, and the ball hole is arranged in the rolling groove. The ball hole is provided with an inner rotating part, the inner rotating part is rotatably sleeved in the positioning hole, a limiting part is arranged in the ball hole, the inner rotating part is provided with a rotary groove, and the rotary groove is arranged corresponding to the rolling groove. Corresponding rotating grooves and mounting mechanisms are arranged on the inner workpiece and the outer workpiece respectively, so that the inner workpiece and the outer workpiece can be sleeved in a relatively rotating manner, an independent traditional bearing structure is replaced, and the device is used for precise instruments, reduces the size and saves the space occupied by an independent bearing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission structures, in particular to an integrated bearing structure. Background Art

[0002] Bearings are a crucial component in modern machinery. Their primary function is to support rotating parts, reduce friction during movement, and ensure rotational accuracy. Bearings generally consist of an outer ring, an inner ring, rolling elements, and a cage.

[0003] According to ISO standards, bearings are classified as P0, P6, P5, P4, and P2, with P0 representing standard precision and the other grades representing precision. Precision bearings require high runout accuracy, high-speed rotation, and minimal friction and friction variation in the rotating body. This is particularly true for precision equipment, where the accuracy fluctuation requirements for precision bearings are even more stringent. This leads to higher costs, and the bearings themselves require a certain amount of rotational space during use. In the fields of aviation and medical equipment, some devices have compact structures, providing limited space for rotating mechanisms. Furthermore, the number of rotations between the two rotating components is infrequent, and the number of revolutions during the equipment's lifecycle is limited. In particular, some devices are designed to be disposable after use. Incorporating bearing components would result in a large space requirement, low utilization, and high cost. Therefore, a non-load-bearing bearing mechanism that is easy to install, offers high precision, requires minimal space, and is low-cost is needed to replace traditional bearings. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides an integrated bearing structure, comprising an outer mounting shaft, an inner rotating member and a ball bearing. The outer mounting shaft is provided with a positioning hole, a ball hole and an oil filling hole. The positioning hole is provided on the end face of the movable connection end of the outer mounting shaft. The inner wall of the positioning hole is provided with a rolling groove. The inner rotating member is rotatably sleeved in the positioning hole. A limiting member is provided in the ball hole. A rotary groove is provided on the inner rotating member. The rotary groove is provided corresponding to the rolling groove.

[0005] Preferably, the rolling groove is an annular groove, and the cross section of the rolling groove is an arc-shaped depression.

[0006] Preferably, the bead hole is arranged radially along the outer mounting shaft, and the bead hole is connected to the rolling groove.

[0007] Preferably, the oil filling hole is provided on the outer mounting shaft, and the oil filling hole is communicated with the rolling groove.

[0008] Preferably, a thread is provided in the bead hole, and the limiting member is a positioning screw, which is threadedly connected to the bead hole.

[0009] Preferably, a conformal protrusion is provided at the bottom of the positioning screw, and a depression is provided in the middle of the conformal protrusion corresponding to the concave cross-section shape of the rolling groove.

[0010] Preferably, a plurality of balls are filled between the rolling groove and the rotary groove.

[0011] Compared with the existing technology, the beneficial effect of the present invention is that by respectively providing corresponding rotation grooves and mounting mechanisms for the inner and outer workpieces, a socketed relationship in which the inner and outer workpieces can rotate relative to each other is realized, replacing the independent traditional bearing structure, and being used for precision instruments, the volume is reduced, and the space occupied by a separate bearing mechanism is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying any creative work.

[0013] Figure 1 It is a three-dimensional schematic diagram of an integrated bearing mechanism of the utility model.

[0014] Figure 2 This is an exploded diagram of an integrated bearing mechanism of the utility model.

[0015] Figure 3 It is a cross-sectional schematic diagram of an integrated bearing mechanism of the utility model.

[0016] Figure 4 It is a schematic cross-sectional view of an outer mounting shaft of an integrated bearing mechanism of the present invention.

[0017] Figure 5 This is a schematic diagram of an inner rotating part of an integrated bearing mechanism of the present utility model.

[0018] Figure 6 This is a schematic diagram of a positioning screw of an integrated bearing mechanism of the utility model.

[0019] In the figure: 1-external mounting shaft, 11-positioning hole, 12-rolling groove, 13-ball hole, 14-oil filling hole, 2-inner rotating part, 22-rotating groove, 3-positioning screw, 31-conformal protrusion, 4-ball. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments described in 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.

[0021] The embodiment of the present utility model provides an integrated bearing mechanism, such as Figures 1 to 6 As shown, it includes an outer mounting shaft 1, an inner rotating member 2, and a ball bearing 4. The outer mounting shaft 1 is provided with a positioning hole 11, a ball hole 13, and an oil filling hole 14. The positioning hole 11 is provided on the end surface of the movable connection end of the outer mounting shaft 1, and the inner rotating member 2 is rotatably sleeved within the positioning hole 11. The inner wall of the positioning hole 11 is provided with a rolling groove 12. The rolling groove 12 is an annular groove with an arc-shaped concave cross-section.

[0022] The bead hole 13 is radially disposed along the outer mounting shaft 1 and communicates with the rolling groove 12. A thread is provided within the bead hole 13. A set screw 3 is threadedly connected to the bead hole 13 to seal the bead hole 13 and fill the gap connecting the bottom of the rolling groove 12 and the bead hole 13.

[0023] The bottom of the positioning screw 3 is provided with a conformal protrusion 31 , and the middle of the conformal protrusion 31 is provided with a depression corresponding to the cross-sectional depression shape of the rolling groove 12 .

[0024] The inner rotating member 2 is provided with a rotation groove 22 , and the rotation groove 22 is provided corresponding to the rolling groove 12 .

[0025] A plurality of balls 4 are installed between the rolling groove 12 and the rotary groove 22 to fill the gap between the rolling groove 12 and the rotary groove 22 , and the balls 4 can rotate and move freely in the gap between the two.

[0026] During installation, the inner rotating part 2 is sleeved into the outer mounting shaft 1, the rotary groove 22 is aligned with the rolling groove 12, and then the balls 4 are sequentially placed through the ball holes 13, and the sealing of the ball holes 13 is completed by screwing in the positioning screws 3.

[0027] In Example 2, the oil filling hole 14 is provided on the outer mounting shaft 1 , and the oil filling hole 14 is communicated with the rolling groove 12 , and lubricating grease is injected through the oil filling hole 14 .

[0028] This design serves as a non-load-bearing bearing structure for circumferential rotation of the inner and outer workpieces, playing the role of positioning and rotation, directly connecting the two relatively rotating workpieces, eliminating the need for a separate bearing structure, and reducing space occupancy.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and scope of equivalents of the claims be encompassed within the present invention. Any reference numerals in the claims should not be construed as limiting the claim to which they relate.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An integrated bearing structure, characterized in that: The invention comprises an outer mounting shaft (1), an inner rotating member (2) and a ball (4), wherein the outer mounting shaft (1) is provided with a positioning hole (11), a ball hole (13) and an oil filling hole (14), wherein the positioning hole (11) is provided on the end face of the movable connection end of the outer mounting shaft (1), and the inner wall of the positioning hole (11) is provided with a rolling groove (12), and the inner rotating member (2) is rotatably sleeved in the positioning hole (11), and a limiting member is provided in the ball hole (13), and the inner rotating member (2) is provided with a rotary groove (22), and the rotary groove (22) is provided corresponding to the rolling groove (12).

2. The integrated bearing structure according to claim 1, characterized in that: The rolling groove (12) is an annular groove, and the cross section of the rolling groove (12) is an arc-shaped depression.

3. The integrated bearing structure according to claim 1, characterized in that: The bead hole (13) is radially arranged along the outer mounting shaft (1), and the bead hole (13) is connected to the rolling groove (12).

4. The integrated bearing structure according to claim 1, characterized in that: The oil filling hole (14) is provided on the outer mounting shaft (1), and the oil filling hole (14) is communicated with the rolling groove (12).

5. The integrated bearing structure according to claim 1, characterized in that: The bead hole (13) is provided with a thread, the limiting member is a positioning screw (3), and the positioning screw (3) is threadedly connected to the bead hole (13).

6. The integrated bearing structure according to claim 5, characterized in that: The bottom of the positioning screw (3) is provided with a conformal protrusion (31), and the middle of the conformal protrusion (31) is provided with a depression corresponding to the cross-sectional depression shape of the rolling groove (12).

7. The integrated bearing structure according to claim 1, characterized in that: A plurality of the balls (4) are filled between the rolling groove (12) and the rotary groove (22).

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