A shaft part lubrication structure, a shaft part lubrication system, and a sewing machine

A technology for lubricating structures and shaft components, applied in sewing machine components, sewing equipment, lubrication/cooling devices, etc., can solve problems such as seizure, insufficient lubrication effect, and difference in the formation of oil film 40, and achieve the effect of avoiding oil leakage

Active Publication Date: 2022-07-05
JACK SEWING MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, since the formation of the oil film 40 of the lower shaft 10 at different rotational speeds will be different, resulting in insufficient lubrication between the lower shaft 10 and the lower shaft front sleeve 20 , the gap between the lower shaft 10 and the lower shaft front sleeve 20 prone to bite problems

Method used

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  • A shaft part lubrication structure, a shaft part lubrication system, and a sewing machine
  • A shaft part lubrication structure, a shaft part lubrication system, and a sewing machine
  • A shaft part lubrication structure, a shaft part lubrication system, and a sewing machine

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Embodiment Construction

[0054] The embodiments of the present invention are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0055] It should be noted that the structures, proportions, sizes, etc. drawn in the accompanying drawings in this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with the technology, and are not intended to limit the conditions for the implementation of the present invention. Therefore, it does not have technical substantive significance, and any structural modification, proportional relationship change or size adjustment should still fall within the scope of the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. within the scope of technical content. At the...

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Abstract

The invention provides a shaft part lubrication structure, a shaft part lubrication system, and a sewing machine. The shaft part lubrication structure includes a shaft sleeve part with a shaft hole, a shaft part, a first oil seal groove and a second oil seal opened in the shaft sleeve part a groove, an oil storage groove, an oil inlet, an oil return port, and a multi-channel oil groove arranged between the shaft member and the inner wall of the shaft hole, and the multi-channel oil groove has at least one first oil return groove and one second oil groove. Oil return groove, among the multi-channel oil grooves, only the first oil return groove extends to the oil storage tank, and only the second oil return groove extends to the first oil seal groove. The multi-channel oil grooves do not intersect with each other, but the multi-channel oil grooves can be continuous in the axial direction of the shaft member cover the part of the shaft part between the oil storage groove and the first oil seal groove. In this application, the multi-channel oil groove and the first oil return groove are used to provide sufficient lubrication between the shaft part and the shaft sleeve part, and the oil in the first oil seal groove is returned through the second oil return groove to prevent oil from appearing in the first oil seal groove. Accumulation of oil to avoid oil seepage and oil leakage.

Description

technical field [0001] The present invention relates to a shaft component lubrication structure. [0002] The present invention further relates to a shaft member lubricating system comprising the above-mentioned shaft member lubricating structure. [0003] The present invention further relates to a sewing machine incorporating the above-described shaft member lubrication system. Background technique [0004] At present, the cooperation between the shaft and the sleeve of the sewing machine in the sewing machine industry is a common mechanism, and at the same time, to realize the flexible rotation between the shaft and the sleeve, the contact surface needs to be lubricated. For example, a sewing machine is equipped with a lower shaft, the end of the lower shaft is equipped with a hook for thread hooking, the lower shaft is rotatably supported in the lower shaft front sleeve, and the lower shaft front sleeve is fixed to the bottom plate of the sewing machine. In order to ens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B71/00
CPCD05B71/00Y02E10/72
Inventor 吴善敏洪志敏林晓晓
Owner JACK SEWING MASCH CO LTD
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