CN2905263Y - Highly-efficient expanding machine - Google Patents
Highly-efficient expanding machine Download PDFInfo
- Publication number
- CN2905263Y CN2905263Y CN 200620057992 CN200620057992U CN2905263Y CN 2905263 Y CN2905263 Y CN 2905263Y CN 200620057992 CN200620057992 CN 200620057992 CN 200620057992 U CN200620057992 U CN 200620057992U CN 2905263 Y CN2905263 Y CN 2905263Y
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- hydraulic jack
- small
- expanding machine
- small oil
- 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 - Lifetime
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Abstract
The utility model provides a hydraulic expanding machine, pertaining to processing of steel pipes, in particular to a machine to expand the diameter of steel pipes, which comprises a expander, a working sleeve, a hydraulic cylinder ram and a small hydraulic station, wherein a connecting mechanism and the hydraulic cylinder ram are provided on the base frame; the hydraulic cylinder ram drives the expander through the connecting mechanism; the small hydraulic station provides pressure oil to the hydraulic cylinder ram; the hydraulic cylinder ram is composed of a big oil cylinder and a small oil cylinder and the big oil cylinder and the small oil cylinder are connected with the small hydraulic station and a pull rod. Being of a simple structure, the utility model is a hydraulic expanding machine that can be used by steel pipe manufacturers and pipeline construction units.
Description
Technical field
The efficient expanding machine of the utility model belongs to the steel pipe manufacture field, particularly relates to a kind of machinery that steel pipe is carried out hole enlargement.
Prior art
Straight-line joint submerged arc welding tube requires to eliminate the steel pipe moulding and welds the internal stress that is caused in process, the method of employing hole enlargement can effectively be eliminated the internal stress of steel pipe, simultaneously also straight-line joint submerged arc welding tube has been carried out integer, it is to utilize cone hole enlargement head, to the hole enlargement of steel pipe body, reaching the target of elimination steel pipe internal stress and size, shape defect, is that good condition is created in on-the-spot steel pipe butt joint, and it is formed by dilating device, work sleeve, oil cylinder, support and little Hydraulic Station.Dilating device has two stages at work, and one is that the hole enlargement head dilates and the steel pipe contact phase, and before hole enlargement, steel pipe ubiquity size inaccuracy and problem in irregular shape can leave bigger gap, will eliminate this gap before hole enlargement.Eliminate this gap and can take bigger stroke, and at this moment the hole enlargement head needs expansionary force very little.Just carry out the pipe expanding stage after eliminating the gap, this stage has taken less stroke, and at this moment the hole enlargement head needs expansionary force very big.General expanding machine is to adopt a hydraulic jack to drive by bindiny mechanism to dilate device, little Hydraulic Station provides pressure oil for oil cylinder, pipe expanding needs bigger pressure, and it is slower to make that like this hole enlargement head dilates the process that contact with steel pipe, has had influence on the efficient of processing.
The utility model content
The purpose of this utility model is to avoid the deficiencies in the prior art part, and a kind of working (machining) efficiency height is provided, and it is fast that the hole enlargement head dilates with the steel pipe contact velocity, efficient expanding machine simple to operate.
The purpose of this utility model reaches by following measure, it is by dilating device, the work sleeve, hydraulic jack and little Hydraulic Station are formed, bindiny mechanism and hydraulic jack are set on frame, hydraulic jack drives by bindiny mechanism and dilates device, little Hydraulic Station provides pressure oil for hydraulic jack, dilating device is connected on the hydraulic jack by the work sleeve, dilating device is by the hole enlargement head, slide block, dilate piece, positioning disk, coupling nut and pull bar are formed, bindiny mechanism is made up of socket and pull bar, pull bar is installed in the socket, hydraulic jack is connected on the pull bar, and the pull bar other end is connected on the hole enlargement head.Hydraulic jack is made up of large tank and small oil tank, large tank and small oil tank are connected on the little Hydraulic Station, large tank and small oil tank are connected on the pull bar, during work, small oil tank is started working, small oil tank contacts fast the hole enlargement head being dilated with steel pipe, starts large tank, strengthens operating pressure to pipe expanding.Improved the efficient of pipe expanding.Under same power configuration, efficient is traditional three times.Otherwise under similar circumstances, power is one of traditional three parts.
The utility model is simple in structure, is a kind of hydraulic pressure expanding machine that is suitable for steel pipe manufacturing firm and the use of pipeline construction unit.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model is by dilating device 1, work sleeve 2, little Hydraulic Station 5, large tank 3 and small oil tank 4 are formed, hydraulic jack drives by bindiny mechanism and dilates device 1, little Hydraulic Station 5 provides pressure oil for hydraulic jack, hydraulic jack is that large tank 3 and small oil tank 4 are connected on the little Hydraulic Station 5, large tank 3 and small oil tank 4 are connected on the pull bar, during work, small oil tank 4 is started working, small oil tank 4 contacts fast the hole enlargement head being dilated with steel pipe, starts large tank 3, strengthens operating pressure to pipe expanding.Improved the speed of pipe expanding.
Claims (1)
1, a kind of hydraulic pressure expanding machine, it is by dilating device, the work sleeve, hydraulic jack, little Hydraulic Station is formed, bindiny mechanism and hydraulic jack are set on frame, hydraulic jack drives by bindiny mechanism and dilates device, little Hydraulic Station provides pressure oil for hydraulic jack, dilating device is connected on the hydraulic jack by the work sleeve, dilating device is by the hole enlargement head, slide block, dilate piece, positioning disk, coupling nut and pull bar are formed, it is characterized in that hydraulic jack is made up of large tank and small oil tank, large tank and small oil tank are connected on the little Hydraulic Station, and large tank and small oil tank are connected on the pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620057992 CN2905263Y (en) | 2006-04-18 | 2006-04-18 | Highly-efficient expanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620057992 CN2905263Y (en) | 2006-04-18 | 2006-04-18 | Highly-efficient expanding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2905263Y true CN2905263Y (en) | 2007-05-30 |
Family
ID=38113894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620057992 Expired - Lifetime CN2905263Y (en) | 2006-04-18 | 2006-04-18 | Highly-efficient expanding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2905263Y (en) |
-
2006
- 2006-04-18 CN CN 200620057992 patent/CN2905263Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070530 |
|
| EXPY | Termination of patent right or utility model |