CN202659625U - Thread anti-loosening device for guide sleeve - Google Patents
Thread anti-loosening device for guide sleeve Download PDFInfo
- Publication number
- CN202659625U CN202659625U CN 201220267532 CN201220267532U CN202659625U CN 202659625 U CN202659625 U CN 202659625U CN 201220267532 CN201220267532 CN 201220267532 CN 201220267532 U CN201220267532 U CN 201220267532U CN 202659625 U CN202659625 U CN 202659625U
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- CN
- China
- Prior art keywords
- guide sleeve
- cylinder barrel
- damping fin
- thread
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a thread anti-loosening device for a cylinder barrel and a guide sleeve, relating to a hydraulic machine for a ship. The device is on the basis of search and improvement for the problem of the leakage of the present hydraulic oil cylinders, wherein the cylinder barrel and the guide sleeve are connected by adopting a thread; a small thread hole is machined in a direction vertical to the thread of the cylinder barrel; after assembly for the cylinder barrel and the guide sleeve is finished, a damping fin is placed in the small thread hole, and then the damping fin is tightly pressed on the guide sleeve by virtue of a slotted set screw with a flat end; during the working of the hydraulic oil cylinder, the loosening of the guide sleeve can be effectively prevented, thus solving the technical problem of the oil leakage of the hydraulic oil cylinder due to the loosening of the guide sleeve. The device is simple in structure, convenient in installation, safe in operation and strong in practicability.
Description
Technical field
The utility model relates to a kind of Hydraulic Drive in Vessel machinery, particularly relates to a kind of guide sleeve screw retention.
Background technique
Since China reform and opening-up, the national economy rapid growth, " scientific and technical innovation, autonomous innovation " become the main flow of current industrial development, and China's industry is progressively to the future development of intensive style, energy-saving and emission-reduction, low-carbon (LC).Along with the Modern Shipbuilding industrial expansion, hydraulic machinery uses in shipbuilding industry and will get more and more, in the hydraulic machinery field, still exist deficiency, need scientific and technical innovation, change backward conventional hydraulic mechanical property, reduce labor intensity, improve safety coefficient and working efficiency, the working life of prolonged mechanical.Hydraulic jack is the critical component in the hydraulic mechanism, and guide sleeve for hydraulic oil cylinder is mounted in the cylinder barrel front end, the part that piston rod is led and seals.Hydraulic jack is when work, and the pushing piston bar moves back and forth in oil cylinder, and the operating time is of a specified duration; easily cause the guide sleeve on the hydraulic jack loosening, after guide sleeve one becomes flexible, be prone to hydraulic fluid leak; just reduce the pressure of hydraulic jack, even can cause compressor emergency shutdown.In order to address this problem, R﹠D institution and science and technology in enterprise personnel are constantly studying, are exploring, utilize modern science and technology, studying and improving the hydraulic jack leakage problem, although obtained technically some progress, in practice, still existed the technical barrier that not yet overcomes.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, a kind of guide sleeve screw retention is provided, cylinder barrel and guide sleeve adopt scyewed joint, minor thread hole of direction processing at vertical cylinder barrel screw thread, after cylinder barrel and guide sleeve have assembled, damping fin is put into the minor thread hole, with fluting flush end Cock screw damping fin is pressed on the guide sleeve again, hydraulic jack is when work, can prevent effectively that guide sleeve is loosening, solve loosening because of the guide sleeve on the hydraulic jack, caused the technical problem of the leakage of hydraulic oil.Though it is more convenient that this apparatus structure simply, is installed, handling safety is practical.
The technological scheme that its technical problem that solves the utility model adopts is: contain cylinder barrel, damping fin, fluting flush end Cock screw, guide sleeve, cylinder barrel is a cylinder shell, guide sleeve is arranged on the front end of cylinder barrel, link with screw thread between cylinder barrel and the guide sleeve, in minor thread hole of vertical cylinder barrel hand of spiral reprocessing, damping fin is put into the minor thread hole, with fluting flush end Cock screw damping fin is pressed on the guide sleeve screw thread, formed a kind of guide sleeve screw retention.
The know-why that the utility model adopts is: link with screw thread between cylinder barrel and the guide sleeve, because piston rod carries out frequently back and forth load movement in cylinder barrel and guide sleeve, the more long easier joining thread looseness between cylinder barrel and the guide sleeve that causes of time, the hydraulic fluid leak that hydraulic jack just occurs, the pressure of hydraulic pressure output just reduces, and causes working efficiency to descend.In minor thread hole of vertical cylinder barrel hand of spiral reprocessing, damping fin is put into the minor thread hole, press damping fin with fluting flush end Cock screw, damping fin has high-strength abrasion-proof fuel tolerance capability and tensile strength, withstand screw thread on the guide sleeve with a slight damping fin, damping fin is flexible plastic material, be pressed on the screw thread, can not destroy original worm structure, add that fluting flush end Cock screw is pushing damping fin, make damping fin be pressed on screw thread on the guide sleeve, make that screw thread must not become flexible between cylinder barrel and the guide sleeve, reach the purpose that prevents that hydraulic jack oil from leaking.
The utility model beneficial effect is: studying and improving existing hydraulic jack leakage problem, cylinder barrel and guide sleeve adopt scyewed joint, minor thread hole of direction processing at vertical cylinder barrel screw thread, after cylinder barrel and guide sleeve have assembled, damping fin is put into the minor thread hole, with fluting flush end Cock screw damping fin is pressed on the guide sleeve again, during hydraulic jack work, can prevent effectively that guide sleeve is loosening, solve because guide sleeve becomes flexible, cause the technical problem of hydraulic jack oil leakage oil, this apparatus structure is simple, install more convenient, handling safety, practical.
Description of drawings
The below further describes the utility model in conjunction with the accompanying drawings and embodiments:
It is a kind of structural representation of guide sleeve screw retention among the figure.
In the drawings: 1 cylinder barrel, 2 damping fins, 3 fluting flush end Cock screws, 4 guide sleeves.
Embodiment
In the drawings, cylinder barrel 1 is a cylinder shell, guide sleeve 4 is arranged on the front end of cylinder barrel 1, link with screw thread between cylinder barrel 1 and the guide sleeve 4, in minor thread hole of vertical cylinder barrel 1 hand of spiral reprocessing, damping fin 2 is put into the minor thread hole, with fluting flush end Cock screw 3 damping fin is pressed on guide sleeve 4 screw threads, formed a kind of guide sleeve screw retention.
Link with screw thread between cylinder barrel 1 and the guide sleeve 4, because piston rod carries out frequently back and forth load movement in cylinder barrel 1 and guide sleeve 4, the more long easier joining thread looseness between guide sleeve 4 and the cylinder barrel 1 that causes of time, the hydraulic fluid leak that hydraulic jack just occurs, the pressure of hydraulic pressure output just reduces, and causes working efficiency to descend.In minor thread hole of vertical cylinder barrel 1 hand of spiral reprocessing, damping fin 2 is put into the minor thread hole, press damping fin 2 with fluting flush end Cock screw 3, damping fin 2 has high-strength abrasion-proof fuel tolerance capability and tensile strength, withstand screw thread on the guide sleeve 4 with a slight damping fin 2, damping fin 2 is flexible plastic materials, be pressed on the screw thread, can not destroy original worm structure, add that fluting flush end Cock screw 3 is pushing damping fin 2, make damping fin 2 be pressed on screw thread on the guide sleeve 4, make that screw thread must not become flexible between cylinder barrel 1 and the guide sleeve 4, reach the purpose that prevents that hydraulic jack oil from leaking.
Claims (1)
1. guide sleeve screw retention, contain cylinder barrel, damping fin, fluting flush end Cock screw, guide sleeve, it is characterized in that: cylinder barrel is a cylinder shell, guide sleeve is arranged on the front end of cylinder barrel, link with screw thread between cylinder barrel and the guide sleeve, in minor thread hole of vertical cylinder barrel hand of spiral reprocessing, damping fin is put into the minor thread hole, with fluting flush end Cock screw damping fin is pressed on the guide sleeve screw thread, has formed a kind of guide sleeve screw retention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267532 CN202659625U (en) | 2012-05-29 | 2012-05-29 | Thread anti-loosening device for guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267532 CN202659625U (en) | 2012-05-29 | 2012-05-29 | Thread anti-loosening device for guide sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659625U true CN202659625U (en) | 2013-01-09 |
Family
ID=47454534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220267532 Expired - Fee Related CN202659625U (en) | 2012-05-29 | 2012-05-29 | Thread anti-loosening device for guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659625U (en) |
-
2012
- 2012-05-29 CN CN 201220267532 patent/CN202659625U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANCHENG HAITE MACHINERY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: YANCHENG HAITE HYDRAULIC MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: The high-tech economic zone 224700 Jiangsu province Yancheng City Jianhu Road No. 999 Patentee after: Yancheng Haite Machinery Technology Co., Ltd. Address before: 224700 Jiangsu province Jianhu Road No. 388 Patentee before: Yancheng Haite Hydraulic Machinery Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |