CN202336473U - Improved perforating trolley of seamless steel tube - Google Patents
Improved perforating trolley of seamless steel tube Download PDFInfo
- Publication number
- CN202336473U CN202336473U CN2011204607693U CN201120460769U CN202336473U CN 202336473 U CN202336473 U CN 202336473U CN 2011204607693 U CN2011204607693 U CN 2011204607693U CN 201120460769 U CN201120460769 U CN 201120460769U CN 202336473 U CN202336473 U CN 202336473U
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- water
- cooling water
- seamless steel
- oil
- mandrel
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Abstract
The utility model provides an improved perforating trolley of a seamless steel tube. The improved perforating trolley of the seamless steel tube comprises a frame and a water collector, wherein the frame is rotationally connected with a core shaft by a rolling bearing; left and right sealing rings are mounted at two ends of a bearing cavity between the core shaft and the frame; an oil draining device is fixedly connected to the frame through threads; the lower end of the oil draining device is communicated with an oil draining tube; the oil draining device is fixedly connected with a water draining device through a bolt; the lower end of the water draining device is communicated with a water draining tube; a cooling water tube joint is also fixedly connected with the right side of the water draining device; the cooling water tube joint is inserted into an inner hole of the core shaft; and the cooling water tube joint is in static sealed connection with the cooling water tube joint by a small sealing ring. According to the utility model, the core shaft is lengthened so that the head part of the core shaft extends out of a water collecting casing; water and oil cannot be mixed to guarantee the bearing lubrication; and the service life of the perforating trolley is prolonged by 3-4 times. Therefore, the problem that the service life of the vehicle bearing is shortened because the bearing cannot be lubricated due to mixed water and oil is solved.
Description
Technical field
The utility model relates to a kind of perforation dolly of seamless steel pipe, specifically, is a kind of modified perforation dolly of seamless steel pipe.
Background technology
Seamless steel pipe is a kind of circle that hollow section, periphery do not have seam that has, and square, the rectangle steel are the shaped steel that is widely used, and seamless steel pipe is to process hollow billet with steel ingot or solid pipe perforated, processes through hot rolling, cold rolling or cold group then.Because of its manufacturing process is different, be divided into two kinds in hot rolling (extruding) seamless steel pipe and cold-drawn (rolling) seamless steel pipe again.Cold-drawn (rolling) pipe is divided into two kinds of round tube and special pipes again.The production process route of cold-drawn (rolling) seamless steel pipe is very long, comprises circular pipe blank → heat → bore a hole → take the lead → anneal → pickling → oiling (copper facing) → multi-pass cold-drawn (cold rolling) → base pipe → heat treatment → aligning → water pressure test (flaw detection).The realization of this production process route, the commercial production streamline of being made up of many professional equipments is carried out, and its professional equipment comprises: the perforation dolly.The perforation dolly is a kind of key equipment, and its major function is that the heating pipe is bored a hole, and hot-puncturing process is the preceding working procedure that seamless steel pipe is made, and perforating head is one of key tool of consumption maximum in the seamless steel tube production.Because the condition of work of perforating head is abominable, perforating head is under the condition of high temperature, high pressure and rapid heat cycle, to work, and is standing the effect of mechanical fatigue and heat fatigue, so perforating head is often scrapped with failure modes such as the nose that collapses, steel bonding, crackings.Perforating head is the main mould of hot rolled seamless steel tube production, also is main consumable accessory.In the poling process, the high temperature about 1060 ℃ through heating-up temperature gets into the rod iron perforation down, the about 15s of average rolling time of every pipe, and the perforating head surface temperature possibly rise to 1300～1600 ℃.Perforating head is released the back and is cooled to below 400 ℃ by shower water, prepares to get into the perforation of next root pipe.Perforating head not only bears strong friction and squeezing action, but also go round and begin again bearing sharp thermal quench effect, working condition is extremely abominable.Therefore, in the mandrel hole of perforation dolly, water inlet pipe has been installed, has constantly been intake during perforation perforating head is cooled off, backwater flows out after flowing to water hull from the slit between water inlet pipe and the mandrel.In addition, the bearing in the car body need lubricate and cool off, and must in car body, inject lubricating oil.For anti-sealing and oil phase string, sealing ring has been installed on mandrel.But in actual production, because mandrel is in the state of rotation at a high speed and strenuous vibration, sealing ring is bad soon, makes water and oil phase string, and the bearing of car body can not get lubricated and lifetime.
Summary of the invention
In order to address the above problem, the utility model provides a kind of follow-on perforation dolly, solves water and oil phase string and makes the bearing of car body can not get the problem that lubricating life shortens.
In order to achieve the above object, the utility model is realized through following technical scheme:
The utility model is a kind of modified perforation dolly of seamless steel pipe, comprises vehicle frame, and the water collector water collector is fixedly connected with vehicle frame through screw thread; At the center of water collector one cooling water pipe has been installed; Vehicle frame is through the rolling bearing mandrel that is rotationally connected, and the two ends of the bearing bore between mandrel and vehicle frame have been installed a left sealing ring and right sealing ring respectively, on vehicle frame, is fixedly connected the oil extraction device through screw thread; Oil extraction device endoporus is placed on the cylindrical of mandrel; The lower end of oil extraction device and oil exit pipe are connected, and the oil extraction device connects a water trap through bolt, and the lower end of water trap and a drainpipe are connected; Water trap flexibly connects through a large sealing packing ring and mandrel; One side of water trap also is fixedly connected the cooling water pipe joint, and the cooling water pipe joint is inserted in the endoporus of mandrel, and said cooling water pipe joint becomes static seal to be connected through small sealing ring with the cooling water pipe joint.
The further improvement of the utility model is: the internal diameter of drainpipe is greater than the internal diameter of cooling water pipe joint.
The further improvement of the utility model is: right sealing ring is skeleton rubber seal.
The utility model extends mandrel, and its head is stretched out outside the shell that catchments, and water can not be gone here and there with oil mutually, guarantees bearing lubrication, and the life-span of perforation dolly has been improved three ~ four times, solves water and oil phase string and makes the bearing of car body can not get the problem that lubricating life shortens.
Description of drawings
Fig. 1 is the utility model installation diagram.
Fig. 2 is the utility model part sketch map.
The specific embodiment
In order to deepen understanding to the utility model, will combine accompanying drawing and embodiment that the utility model is further described below, this embodiment only is used to explain the utility model, does not constitute the qualification of scope that the utility model is explained.
Shown in Fig. 1-2, the utility model is a kind of modified perforation dolly of seamless steel pipe, comprises vehicle frame 4; Water collector 5; Said water collector 5 is fixedly connected with said vehicle frame 4 through screw thread, and a cooling water pipe 1 has been installed at the center of said water collector 5, and said vehicle frame 4 is through the rolling bearing mandrel 14 that is rotationally connected; A left sealing ring 2 and right sealing ring 6 installed at the two ends of the bearing bore 15 between said mandrel 14 and said vehicle frame 4 respectively; Said right sealing ring 6 is skeleton rubber seal, on said vehicle frame 4, is fixedly connected oil extraction device 13 through screw thread, and said oil extraction device 13 endoporus are placed on the cylindrical of said mandrel 14; The lower end of said oil extraction device 13 and oil exit pipe 12 are connected; Said oil extraction device 13 connects a water trap 8 through bolt, and the lower end of said water trap 8 and a drainpipe 11 are connected, and said water trap 8 flexibly connects through a large sealing packing ring 7 and said mandrel 14; One side of said water trap 8 also is fixedly connected cooling water pipe joint 9; Said cooling water pipe joint 9 is inserted in the endoporus of mandrel 14, and said cooling water pipe joint 9 is connected through 9 one-tenth static seals of small sealing ring 10 and said cooling water pipe joint, and the internal diameter of said drainpipe 11 is greater than the internal diameter of cooling water pipe joint 9.
The utility model extends mandrel, and its head is stretched out outside the shell that catchments, and water can not be gone here and there with oil mutually, guarantees bearing lubrication, and the life-span of perforation dolly has been improved three ~ four times, solves water and oil phase string and makes the bearing of car body can not get the problem that lubricating life shortens.
Claims (3)
1. the modified of seamless steel pipe perforation dolly; Comprise vehicle frame (4); Water collector (5); Said water collector (5) is fixedly connected with said vehicle frame (4) through screw thread, at the center of said water collector (5) cooling water pipe (1) has been installed, and it is characterized in that: said vehicle frame (4) is through the rolling bearing mandrel (14) that is rotationally connected; The two ends of the bearing bore (15) between said mandrel (14) and said vehicle frame (4) are installed a left sealing ring (2) and right sealing ring (6) respectively; Go up through screw thread fixed connection oil extraction device (13) at said vehicle frame (4), said oil extraction device (13) endoporus is placed on the cylindrical of said mandrel (14), and the lower end of said oil extraction device (13) and oil exit pipe (12) are connected; Said oil extraction device (13) connects a water trap (8) through bolt; The lower end of said water trap (8) and a drainpipe (11) are connected, and said water trap (8) flexibly connects through a large sealing packing ring (7) and said mandrel (14), and a side of said water trap (8) also is fixedly connected cooling water pipe joint (9); Said cooling water pipe joint (9) is inserted in the endoporus of mandrel (14), and said cooling water pipe joint (9) becomes static seal to be connected through small sealing ring (10) and said cooling water pipe joint (9).
2. the modified of a kind of seamless steel pipe according to claim 1 perforation dolly, it is characterized in that: the internal diameter of said drainpipe (11) is greater than the internal diameter of cooling water pipe joint (9).
3. the modified of a kind of seamless steel pipe according to claim 1 and 2 perforation dolly, it is characterized in that: said right sealing ring (6) is skeleton rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204607693U CN202336473U (en) | 2011-11-19 | 2011-11-19 | Improved perforating trolley of seamless steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204607693U CN202336473U (en) | 2011-11-19 | 2011-11-19 | Improved perforating trolley of seamless steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202336473U true CN202336473U (en) | 2012-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204607693U Expired - Fee Related CN202336473U (en) | 2011-11-19 | 2011-11-19 | Improved perforating trolley of seamless steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202336473U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433281A (en) * | 2013-08-28 | 2013-12-11 | 无锡欧龙特种钢管有限公司 | Ejector header cooling device of seamless tube perforating machine |
| CN106001136A (en) * | 2016-05-26 | 2016-10-12 | 马鞍山市安工大工业技术研究院有限公司 | Cooling device for inner surfaces of seamless steel tubes |
-
2011
- 2011-11-19 CN CN2011204607693U patent/CN202336473U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433281A (en) * | 2013-08-28 | 2013-12-11 | 无锡欧龙特种钢管有限公司 | Ejector header cooling device of seamless tube perforating machine |
| CN106001136A (en) * | 2016-05-26 | 2016-10-12 | 马鞍山市安工大工业技术研究院有限公司 | Cooling device for inner surfaces of seamless steel tubes |
| CN106001136B (en) * | 2016-05-26 | 2017-11-14 | 马鞍山市安工大工业技术研究院有限公司 | A kind of cooling device for seamless steel pipe interior surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |