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Transmission shaft with dustproof oil seal structure

A transmission shaft and anti-dust oil technology, applied in the field of auto parts, can solve problems such as oil seal degeneration and damage, oil seal wear, and reduced oil seal sealing performance

Active Publication Date: 2021-03-26
NINGBO JIECHENG AXLE TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The oil seal generally needs an interference fit with the output shaft or / and the input shaft. When installing the oil seal, it is necessary to use tools such as a hammer to knock the oil seal to the installation position. Since it is impossible to ensure that the tool hits all parts of the oil seal evenly, it can ensure that the oil seal All parts of the oil seal can be located in the installation position, resulting in poor installation accuracy and unable to maintain the tightness of the oil seal. At the same time, parts of the oil seal are easily denatured and damaged due to excessive knocking force during installation.
[0004] For the oil seal installed on the transmission shaft, since the transmission shaft is a rotating body with high speed and few supports, it is easy to cause the oil seal with interference fit to wear, because there is no fixed position for installing the oil seal on the surface of the general transmission shaft , resulting in a gap between the oil seal and the transmission shaft after long-term use, which greatly reduces the sealing performance of the oil seal

Method used

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  • Transmission shaft with dustproof oil seal structure
  • Transmission shaft with dustproof oil seal structure
  • Transmission shaft with dustproof oil seal structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]Such asFigure 1 to 5 As shown, a drive shaft including a dust-proof oil seal 3, includes a central shaft 1, a spindle of the central shaft 1, which is less than the main shaft 2 of the center shaft 1, the central shaft 1 including a transmission mechanism for driving the transmission. The drive mechanism of the mechanism is integrally formed with the spindle 2 in both sides, which is slidably mounted between the main shaft 2 and symmetrically disposed on the first arc block 102 and the second arc block 103 of the upper and lower ends of the connecting portion 101. The first movable block 104 and the second movable block 105 on the left and right ends of the connecting portion 101 are opened in the connecting portion 101, and the drive mechanism is mounted in the driving chamber 101a and respectively with the first arc block 102 and the second, respectively. The curved block 103 is connected, the transmission mechanism is attached to both sides of the connection portion 101 and...

Embodiment 2

[0046]Such asFigure 7 withFigure 9 As shown, the present embodiment is based on the above-described embodiment 1, and one optimized design is made, and a torsion spring 15 is fixed to the first movable block 104 on the side of the guide plate 14, and the torsion spring 15 is fixed. There is a baffle 16, and the baffle 16 is fixed at the guide plate 14, and when the first movable block 104 and the second movable block 105 are detached from the slot 201, the torsion spring 15 replies to the sliding plate 16, and by the baffle 16 Drop the guide plate 14 moves to the step 101c so that the step 101c can again abut against the guide plate 14, preventing the first movable block 104 and the second movable block 105 shift.

Embodiment 3

[0048]Such asfigure 2 As shown, the present embodiment is based on the above-described Embodiment 1, which is optimized, the first arc block 102, and the second arc block 103 are formed on the first arc-shaped block 103, and the first active block 104, and the second The card slot 18 that can be engaged with the card plate 17, the card plate 17 and the card slot 18 is opened on the active block 105, and the first arc-shaped block 102 is passed through the bolt after the oil seal 3 is installed. The second arc-shaped block 103, the first movable block 104, and the second movable block 105 are fixed to each other, thereby avoiding relative movement to affect the sealing oil effect of the oil seal 3.

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Abstract

The invention relates to a transmission shaft with a dustproof oil seal structure. The transmission shaft comprises a middle shaft and main shafts, wherein the main shafts are arranged on two sides ofthe middle shaft, and the inner diameter of each main shaft is smaller than that of the middle shaft; the middle shaft comprises a transmission mechanism, a driving mechanism, a connecting part, first and second arc-shaped blocks arranged at the upper and lower ends of the connecting part in a sliding manner, and first and second movable blocks arranged at the left and right ends of the connecting part; the driving mechanism is connected with the first arc-shaped block and the second arc-shaped block; the transmission mechanism is connected with the first movable block and the second movableblock; the first arc-shaped block, the second arc-shaped block, the first movable block and the second movable block are spliced into the middle shaft when getting close to one another, and oil storage tanks can communicate with each other when the first arc-shaped block, the second arc-shaped block, the first movable block and the second movable block get close to each other; and the oil storagetanks are sleeved with oil seals. According to the technical scheme, the transmission shaft is provided with specific installation parts for the oil seals, so that good sealing performance of the oilseals can be guaranteed under the condition of long-term operation, and rapid installation of the oil seals can be achieved.

Description

Technical field[0001]The present invention relates to the field of automotive parts, and more specifically, a drive shaft having a dust-proof oil seal structure.Background technique[0002]The oil seal is a habit of general seals, simply that the seal of lubricants. It is a mechanical component for sealing oil, which isolates the components that need to be lubricated in the transmission member, not allowing the lubricating oil to leak. The static seal and the dynamic seal seal are called oil seals.[0003]The oil seal generally needs to cooperate with the output shaft or / and input shaft. When installing the oil seal, it is necessary to use a tool such as a hammer to knock the oil to the mounting position. Since the tool cannot be guaranteed to be uniformly tap, it guarantees oil seals Each portion can be located in the installation position, resulting in a sealing of the installation accuracy, cannot be kept oil seal, and the partial easily of the oil seal is easily damaged during the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02F16J15/16F16N7/00
CPCF16C3/023F16J15/16F16N7/00
Inventor 周季旭
Owner NINGBO JIECHENG AXLE TRADE
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