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center bearing support

A technology for central bearings and supports, applied in the direction of bearing components, bearings, rigid supports of bearing components, etc., can solve the problems of poor followability of the axial movement of the drive shaft, problems in the durability of large displacement input, etc., and achieve reduction Effects of increasing reaction force, suppressing vibration, and improving durability

Active Publication Date: 2017-11-17
NOK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned center bearing support 51 is formed to adjust the spring constant as an elastic body by providing a plurality of cavities (sugri parts) 54 as spaces penetrating the rubber-like elastic body 52 in the axial direction around the shaft hole 53, , was pointed out with Figure 10 Compared with the corrugated center bearing support 61 having the corrugated rubber-like elastic body 62 shown in , it has poor followability to the axial movement of the transmission shaft and has problems in durability against large displacement input.

Method used

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Examples

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Embodiment

[0065] Next, embodiments of the present invention will be described with reference to the drawings.

no. 1 example

[0067] Figure 1 to Figure 3 The center bearing support 11 according to the first embodiment of the present invention is shown. The center bearing support 11 according to this embodiment elastically supports the propeller shaft (propulsion shaft, not shown) through a center bearing (intermediate bearing, not shown) in a vehicle such as an automobile, and is configured as follows.

[0068] That is, first, the center bearing support 11 has a rubber-like elastic body (elastic body) 12 shaped into a block, and a shaft hole 13 is provided at the front central portion of the rubber-like elastic body 12 . In addition, the rubber-like elastic body 12 integrally has a cylindrical shaft insertion portion 14 provided around the shaft hole 13, and a vibration-proof support portion 15 provided on the outer peripheral side of the shaft insertion portion 14. image 3 As shown in the cross-section of , since the latter anti-vibration support portion 15 is formed into a block with a substanti...

no. 2 example

[0078] In the first embodiment described above, the connection portion 23 is formed in a linear shape having a predetermined width when viewed from one side in the axial direction, but instead, the connection portion 23 may be formed to have a predetermined width when viewed from one side in the axial direction. of the curve.

[0079] Figure 4 An example according to this aspect is shown, and the connecting portion 23 is formed in a curved shape as shown in the figure. In addition, as a premise, a concave arc surface is formed on the inner peripheral side cavity 21 at a portion facing the outer peripheral side cavity 22 , and on the other hand, on the outer peripheral side cavity 22 , a concave arc surface is formed on the inner peripheral side thereof. The opposing portion of the cavity portion 21 forms a convex arc surface. According to this configuration, the length of the connecting portion 23 can be further set larger than that of the first embodiment.

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Abstract

The present invention provides a central bearing support member, which is a block type central bearing support member having a block-shaped rubber-like elastic body, and at the same time, has excellent followability to the axial movement of the transmission shaft, and can improve resistance to large displacements. Input durability. In order to achieve this, a plurality of cavities are provided around the shaft hole as spaces passing through the rubber-like elastic body in the axial direction. The cavity is composed of a combination of an inner cavity disposed relatively close to the shaft hole and an outer cavity disposed relatively far away. The inner peripheral cavity and the outer peripheral cavity are arranged alternately on the circumference and partially overlapped on the circumference, whereby there is a rubber elastic body between the inner peripheral cavity and the outer peripheral cavity. Partial connection. The connecting portion extends in a direction inclined to both the circumferential direction and the direction perpendicular to the axis.

Description

technical field [0001] The present invention relates to a center bearing support for anti-vibration support of a transmission shaft via a center bearing. The center bearing support of the present invention is used for anti-vibration support of a propeller shaft for vehicles such as automobiles, or for anti-vibration support of other propeller shafts or propulsion shafts. Background technique [0002] Such as Figure 9 As shown, a block-type center bearing support 51 has been known previously, which has a block-shaped rubber-like elastic body 52 provided with a shaft hole 53 on which a center bearing (not shown) is installed on the inner peripheral surface of the shaft hole 53 As shown in the figure), the transmission shaft (not shown) is inserted through the shaft hole 53, and the transmission shaft is supported by the center bearing for anti-vibration. [0003] Although the above-mentioned center bearing support 51 is formed to adjust the spring constant as an elastic body...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C27/06B60K17/22
CPCB60K17/24F16C27/066F16C35/02
Inventor 池田政弘
Owner NOK CORP