Bearing structure capable of adjusting damping

Abstract

The utility model relates to a bearing structure, in particular to a bearing structure capable of adjusting damping. The bearing structurally comprises an inner ring and an outer ring, a circle of steel balls are arranged between the inner ring and the outer ring, a retainer is arranged on the outer sides of the steel balls, a sealing ring is further arranged between the inner ring and the outer ring on the two sides of the retainer through a framework, a circle of open grooves are formed in the circumferential direction of the blocking diameter of the inner ring, and the open grooves are evenly distributed in the outer diameter of the inner ring. According to the bearing structure capable of adjusting the damping size, the damping is stabilized through the groove formed in the circumferential direction of the blocking diameter of the bearing inner ring, so that the damping force value of the damping bearing in the operation process is controlled within a certain range.

Description

Technical Field

[0001] The utility model relates to a bearing structure, in particular to a bearing structure capable of adjusting damping size. Background Art

[0002] Damping bearings are widely used, and are often used in drawers, vibration-damping covers, fitness equipment, etc. However, according to the actual working conditions, the damping value of the damping bearing must be controlled within a certain range, neither too large nor too small, otherwise the function of the entire component will be lost.

[0003] In the prior art, the damping value of the bearing structure can only be adjusted by adjusting or grinding the outer diameter of the bearing, which is relatively complicated and has a high production cost. Summary of the invention

[0004] In order to solve the problems of the prior art, the utility model provides a bearing structure capable of adjusting the damping size, which stabilizes the damping by slotting the inner ring of the bearing in the circumferential direction, so that the damping force value of the damping bearing is controlled within a certain range during operation.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A bearing structure capable of adjusting damping size comprises an inner ring and an outer ring, a circle of steel balls are arranged between the inner ring and the outer ring, a retaining frame is arranged outside the steel balls, sealing rings are also arranged between the inner ring and the outer ring on both sides of the retaining frame through a skeleton, a circle of grooves is arranged in the circumferential direction of the inner ring retaining diameter, and the grooves are evenly distributed on the outer diameter of the inner ring.

[0007] Preferably, the groove cross section is a 90° sector-shaped conical groove with a depth of 0.5 mm-0.7 mm.

[0008] Preferably, the upper edge of the slot is a circle with a diameter of 0.8 mm, and there are 8 slots evenly distributed on the outer diameter of the inner ring.

[0009] Preferably, the retaining frame is composed of two semicircular half retaining frames connected by rivets.

[0010] The beneficial effects brought by the technical solution provided by the utility model are:

[0011] The utility model stabilizes the damping by slotting the bearing inner ring stopper in the circumferential direction, so that the damping force value of the damping bearing is controlled within a certain range during operation. After stability testing, the damping dispersion is controlled within the range of 20mN·m. At the same time, the damping size of the bearing is adjusted by the number of slots, that is, the damping size of the bearing is adjusted by changing the size of the contact surface between the inner lip of the sealing ring and the inner ring stopper. The larger the contact surface (the fewer the number of slots), the greater the damping value of the entire bearing, and vice versa. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a schematic diagram of the internal structure of a bearing structure capable of adjusting the damping size according to the utility model;

[0014] Figure 2 This is a schematic structural diagram of an inner ring of a bearing structure capable of adjusting damping size according to the utility model;

[0015] Figure 3 for Figure 2 KK structural cross-sectional view. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Embodiment 1:

[0018] As attached Figure 1 As shown, the present embodiment is a bearing structure capable of adjusting the damping size, comprising an inner ring 1 and an outer ring 2, a circle of steel balls 3 are arranged between the inner ring 1 and the outer ring 2, a retaining frame is arranged outside the steel balls 3, and a sealing ring 5 is also arranged between the inner ring 1 and the outer ring 2 on both sides of the retaining frame through a skeleton 4, and a circle of grooves 6 are arranged in the circumferential direction of the inner ring 1, and the grooves 6 are evenly distributed on the outer diameter of the inner ring 1.

[0019] As attached Figure 2 , 3 As shown, the cross section of the slot 6 of this embodiment is a 90° sector-shaped conical slot, and the depth S is 0.6 mm.

[0020] In this embodiment, the upper edge of the slot 6 is a circle with a diameter of 0.8 mm, and there are 8 slots evenly distributed on the outer diameter of the inner ring 1.

[0021] As attached Figure 1 As shown, the cage of this embodiment is composed of two semicircular half cages 7 connected by rivets 8.

[0022] The bearing structure of this embodiment stabilizes the damping by slotting the bearing inner ring stopper in the circumferential direction, so that the damping force value of the damping bearing is controlled within a certain range during operation. After stability testing, the damping dispersion is controlled within the range of 20mN·m. At the same time, the damping size of the bearing is adjusted by the number of slots, that is, the damping size of the bearing is adjusted by changing the size of the contact surface between the inner lip of the sealing ring and the inner ring stopper. The larger the contact surface (the fewer the number of slots), the greater the damping value of the entire bearing, and vice versa.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bearing structure capable of adjusting damping, comprising an inner ring and an outer ring, a circle of steel balls arranged between the inner ring and the outer ring, a retaining frame arranged outside the steel balls, and sealing rings arranged between the inner ring and the outer ring on both sides of the retaining frame through a frame, characterized in that: The inner ring retaining diameter is provided with a circle of slots in the circumferential direction, and the slots are evenly distributed on the outer diameter of the inner ring.

2. A bearing structure capable of adjusting damping according to claim 1, characterized in that: The grooved section is a 90° sector-shaped conical groove with a depth of 0.5mm-0.7mm.

3. A bearing structure capable of adjusting damping according to claim 2, characterized in that: The upper edge of the slot is a circle with a diameter of 0.8 mm, and there are 8 slots evenly distributed on the outer diameter of the inner ring.

4. A bearing structure capable of adjusting damping according to claim 1, characterized in that: The retaining frame is composed of two semicircular half retaining frames connected by rivets.

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