CN112709748A

CN112709748A - Strengthen anti resonant bellows and flocking flexible axle subassembly

Info

Publication number: CN112709748A
Application number: CN202011541591.5A
Authority: CN
Inventors: 曹兴云; 丁国军; 曹文娟
Original assignee: Shanghai Gaoqi Auto Parts Co ltd
Current assignee: Shanghai Gaoqi Auto Parts Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-27

Abstract

The invention discloses a corrugated pipe for enhancing anti-resonance and a flocking flexible shaft assembly, and belongs to the technical field of flexible shafts. The flexible shaft type corrugated pipe comprises a flexible shaft, a flocking layer, a corrugated pipe and a grease layer, wherein the flocking layer is fixedly sleeved on the outer side of the flexible shaft, the grease layer is smeared on the outer surface of the flocking layer, an assembly formed by the flexible shaft, the flocking layer and the grease layer is sleeved inside the corrugated pipe, and the grease layer is completely arranged inside the corrugated pipe. The inner part of the No. one pipe on the corrugated pipe in the device is responsible for restraining the flocking flexible shaft, and the flocking layer sleeved with the flexible shaft is limited to avoid resonance under the condition that the horizontal adjusting mechanism of the automobile seat vibrates; the outer side wall of the flocking layer of the flexible shaft is arranged on the hollow-avoiding non-contact sleeve of the No. two tubes on the corrugated pipe, namely, a gap is reserved, friction force is not generated, meanwhile, the grease layer is arranged in the gap, the effect of lubricating the extension grease and reducing the friction force is achieved, the inner diameter of the corrugated pipe is smaller than the size of a sleeve in the prior art, and therefore in actual operation, friction torque is small compared with that of a cylindrical inner hole sleeve.

Description

Strengthen anti resonant bellows and flocking flexible axle subassembly

Technical Field

The invention relates to a corrugated pipe and a flocking flexible shaft assembly for enhancing anti-resonance, belongs to the technical field of flexible shafts, and particularly relates to a transmission flexible shaft assembly for enhancing anti-resonance, which is used on a horizontal adjusting mechanism of an automobile seat.

Background

Seat flexible axle that uses in the existing market all is ordinary cylinder inner hole sleeve pipe flocking flexible axle. Although the traditional structure mode utilizes the flocking layer of the flexible shaft, the effect of damping and preventing resonance abnormal sound can be achieved in the sleeve.

However, because the inner hole of the cylinder is in full-area contact with the flexible shaft, namely the contact area is large, the rotational friction resistance moment of the flexible shaft in the sleeve is large, so that the inner diameter of the sleeve cannot be further reduced, the constraint of the sleeve on the flexible shaft cannot reach an ideal enough state, and the resonance problem still can occur under the condition of extreme vibration.

Disclosure of Invention

The present invention is implemented by the following technical solutions in view of the technical problems mentioned in the background art:

the corrugated pipe and flocking flexible shaft assembly comprises a flexible shaft, a flocking layer, a corrugated pipe and a grease layer, wherein the flocking layer is fixedly sleeved on the outer side of the flexible shaft, the grease layer is coated on the outer surface of the flocking layer, a combined body formed by the flexible shaft, the flocking layer and the grease layer is sleeved inside the corrugated pipe, and the grease layer is completely arranged inside the corrugated pipe.

As a preferred example, the flocking layer is adhered to the outer surface of the flexible shaft.

As a preferable example, the interior of the corrugated pipe comprises a plurality of No. one pipes and a plurality of No. two pipes, every two adjacent No. one pipes are communicated with the No. two pipes, and the inner diameter of each No. two pipe is larger than that of each No. one pipe.

As a preferred example, a plurality of the No. one tubes and a plurality of the No. two tubes are integrally formed.

As a preferable example, when the flocking layer sleeved with the flexible shaft is sleeved in the corrugated pipe through the grease layer, the flocking layer is sleeved on the first tubes together, gaps are formed between the outer side of the flocking layer and the inner walls of the second tubes, and the grease layer is arranged in the gaps.

The invention has the beneficial effects that: the inner part of the No. one pipe on the corrugated pipe in the device is responsible for restraining the flocking flexible shaft, and the flocking layer sleeved with the flexible shaft is limited to avoid resonance under the condition that the horizontal adjusting mechanism of the automobile seat vibrates; the outer side wall of the flocking layer of the flexible shaft is arranged on the hollow-avoiding non-contact sleeve of the No. two tubes on the corrugated pipe, namely, a gap is reserved, friction force is not generated, meanwhile, the grease layer is arranged in the gap, the effect of lubricating the extension grease and reducing the friction force is achieved, the inner diameter of the corrugated pipe is smaller than the size of a sleeve in the prior art, and therefore in actual operation, friction torque is small compared with that of a cylindrical inner hole sleeve.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure in the direction of a-a in fig. 1.

In the figure: the flexible shaft 1, the flocking layer 2, the corrugated pipe 3, the first pipe 31, the second pipe 32 and the grease layer 4.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easy to understand, the invention is further described with reference to the specific drawings.

As shown in fig. 1-2, the reinforced anti-resonance corrugated pipe and flocking flexible shaft assembly comprises a flexible shaft 1, a flocking layer 2, a corrugated pipe 3 and a grease layer 4, wherein the flocking layer 2 is fixedly sleeved outside the flexible shaft 1, the grease layer 4 is coated on the outer surface of the flocking layer 2, a combined body formed by the flexible shaft 1, the flocking layer 2 and the grease layer 4 is sleeved inside the corrugated pipe 3, and the grease layer 4 is completely arranged inside the corrugated pipe 3.

The flocking layer 2 is adhered on the outer surface of the flexible shaft 1.

The interior of the corrugated tube 3 comprises a plurality of No. one tubes 31 and a plurality of No. two tubes 32, every two adjacent No. one tubes 31 are communicated with the No. two tubes 32, and the inner diameter of the No. two tubes 32 is larger than that of the No. one tubes 31.

The

tubes

31 and 32 are integrally formed.

When the flocking layer 2 sleeved with the flexible shaft 1 is sleeved inside the corrugated pipe 3 through the grease layer, the flocking layer 2 is commonly sleeved on the first pipes 31, gaps are formed between the outer side of the flocking layer 2 and the inner walls of the second pipes 32, and the grease layer 4 is arranged in the gaps.

When the device is used for work, the flocking layer 2 sleeved with the flexible shaft 1 rotates in the corrugated pipe 3 at a high speed at a rotating speed of more than 3000rpm, so that the automobile seat horizontal adjusting mechanism has specific requirements on the friction resistance moment of the flexible shaft 1 in the corrugated pipe 3 (usually <0.045NM, more than 0 NM), and the friction moment of the device is better as the smaller friction moment is compared with the friction moment of the flexible shaft in a cylindrical inner hole sleeve, and the first-grade pipe 31 and the second-grade pipe 32 on the corrugated pipe 3 are better as the inner diameter of the sleeve is larger; meanwhile, resonance is avoided, the corrugated pipe 3 is required to carry out enough restraint on the flocking layer 2 sleeved with the flexible shaft 1, the stronger the restraint is, the better the restraint is, the smaller the inner diameter of the No. one pipe 31 in the corrugated pipe 3 is, the better the inner diameter is, and the state of close contact with the outer side wall of the flexible shaft 1 is achieved;

the inside of a pipe No. one 31 on the corrugated pipe 3 is responsible for restraining the flocking flexible shaft and limiting the flocking layer 2 sleeved with the flexible shaft 1 from generating resonance under the condition that the horizontal adjusting mechanism of the automobile seat generates vibration; the two-number pipe 32 on the corrugated pipe 3 is kept away from the air and is sleeved on the outer side wall of the flocking layer 2 of the flexible shaft 1 in a non-contact manner, namely, a gap is reserved, no friction force is generated, and meanwhile, the grease layer 4 can be arranged in the gap to play the roles of prolonging grease lubrication and reducing friction force.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Strengthen anti resonant bellows and flocking flexible axle subassembly, its characterized in that: the corrugated pipe comprises a flexible shaft (1), a flocking layer (2), a corrugated pipe (3) and a grease layer (4), wherein the flocking layer (2) is fixedly sleeved on the outer side of the flexible shaft (1), the grease layer (4) is smeared on the outer surface of the flocking layer (2), a combined body formed by the flexible shaft (1), the flocking layer (2) and the grease layer (4) is sleeved in the corrugated pipe (3), and the grease layer (4) is completely arranged in the corrugated pipe (3).

2. The bellows and flocking flexible shaft assembly of claim 1 with enhanced resonance resistance, wherein: the flocking layer (2) is bonded on the outer surface of the flexible shaft (1).

3. The bellows and flocking flexible shaft assembly of claim 1 with enhanced resonance resistance, wherein: the corrugated pipe (3) comprises a plurality of No. one pipes (31) and a plurality of No. two pipes (32) inside, every two adjacent No. one pipes (31) are communicated with the No. two pipes (32), and the inner diameter of the No. two pipes (32) is larger than that of the No. one pipes (31).

4. The bellows and flocking flexible shaft assembly of claim 2 with enhanced anti-resonance, wherein: the number one tubes (31) and the number two tubes (32) are integrally formed.

5. The bellows and flocking flexible shaft assembly of claim 2 with enhanced anti-resonance, wherein: when the flocking layer (2) sleeved with the flexible shaft (1) is sleeved inside the corrugated pipe (3) through the grease layer, the flocking layer (2) is sleeved on the multiple first tubes (31) together, gaps are formed between the outer side of the flocking layer (2) and the inner walls of the multiple second tubes (32), and the grease layer (4) is arranged in the gaps.