CN101972953A - Internal grinding machine for large-caliber seamless steel pipes - Google Patents
Internal grinding machine for large-caliber seamless steel pipes Download PDFInfo
- Publication number
- CN101972953A CN101972953A CN2010105091545A CN201010509154A CN101972953A CN 101972953 A CN101972953 A CN 101972953A CN 2010105091545 A CN2010105091545 A CN 2010105091545A CN 201010509154 A CN201010509154 A CN 201010509154A CN 101972953 A CN101972953 A CN 101972953A
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- Prior art keywords
- grinding
- transmission shaft
- power transmission
- seamless steel
- motor cover
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- 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.)
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses an internal grinding machine for large-caliber seamless steel pipes and relates to a novel internal grinding machine for the large-caliber seamless steel pipes, which belongs to the technical field of machining equipment. The front end of a transmission shaft is fixedly connected with a grinding wheel; the transmission shaft is supported in a shaft sleeve through a bearing; the back end of the transmission shaft is connected to the output end of a hydraulic motor; the hydraulic motor is arranged in a motor cover; the motor cover is fixedly connected with the shaft sleeve; the back end of the motor cover is fixedly connected with a lengthened grinding bar; and the back end of the lengthened grinding bar is connected with a grinding pressure adjusting oil cylinder. The number of middle support bearings is reduced and the rigidity of the transmission shaft is enhanced; the downward pressure of the grinding wheel at the back end of the original grinding bar is adjusted by the current thrust oil cylinder instead of a screw rod; the grinding pressure adjusting oil cylinder is arranged on the tail part of the lengthened grinding bar, so that the grinding pressure of the grinding wheel can be adjusted according to operation requirements; and the deep part of a relatively long steel pipe is machined by grinding, so that the stability of equipment is enhanced, the grinding pressure at the position of the grinding wheel is increased, the service life of the equipment is prolonged and the work efficiency of the equipment is improved.
Description
Technical field
The present invention relates to a kind of novel heavy caliber seamless steel pipe internal grinder, belong to the technical field of machining equipment.
Background technology
Traditional seamless steel pipe internal grinder adopts rearmounted driven by motor major axis to drive emery wheel, to realize the purpose to the seamless steel pipe grinding.Adopt screw mandrel to adjust the emery wheel downforce in the rear end,, increase the emery wheel downforce, cause the power transmission shaft bending, cause imbalance, make the power transmission shaft vibrations bigger, be easy to cause power transmission shaft intermediate supports bearing and motor to damage for increasing work efficiency.
Summary of the invention
The object of the present invention is to provide the heavy caliber seamless steel pipe internal grinder that a kind of balance is good, vibrations are little, durable.
The present invention includes power transmission shaft, the front end of described power transmission shaft is fixedlyed connected with emery wheel, described power transmission shaft by bearings in axle sleeve, the rear end of described power transmission shaft is connected the output of a hydraulic motor, described hydraulic motor is arranged in the motor cover, described motor cover is fixedlyed connected with described axle sleeve, and a fixedly connected lengthening mill bar connects grinding pressure in the rear end of described lengthening mill bar and adjusts oil cylinder in the rear end of described motor cover.
Invention has reduced the intermediate supports bearing, the rigidity of the power transmission shaft of increase by the rearmounted motor-driven of long pass moving axis being changed into the fluid motor-driven of existing short pass moving axis; Former mill rod rear end is adjusted the emery wheel downforce with screw mandrel and is changed existing push action cylinder adjustment downforce into, grinding pressure is adjusted oil cylinder and is installed in lengthening mill bar afterbody, can adjust the grinding pressure of emery wheel according to the operation needs, can carry out grinding to the deep of longer steel pipe, improved the stability of equipment, strengthen the grinding pressure at emery wheel position, improved the life-span and the operating efficiency of equipment.
In order further to improve the stability in the use, the end face of described emery wheel is provided with the driving flange, and described driving flange is fixedlyed connected with described power transmission shaft.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Among the figure, 1 grinding pressure is adjusted oil cylinder, 2 lengthening mill bars, and 3 hydraulic motors, 4 motor cover, 5 power transmission shafts, 6 single-row tapered roller bearings, 7 axle sleeves, 8 emery wheels, 9 drive flange.
The specific embodiment
The end face of emery wheel 8 of the present invention is provided with and drives flange 9, and the front end of power transmission shaft 5 is fixedlyed connected with emery wheel 8 by driving flange 9.Power transmission shaft 5 is supported in the front and back ends of axle sleeve 7 by two groups of single-row tapered roller bearings 6.The rear end of power transmission shaft 5 is connected the output of a hydraulic motor 3, this hydraulic motor 3 is arranged in the motor cover 4, motor cover 4 is fixedlyed connected with the rear end of axle sleeve 5, and a fixedly connected lengthening mill bar 2 connects grinding pressure in the rear end of lengthening mill bar 2 and adjusts oil cylinder 1 in the rear end of motor cover 4.
Can take involute spline to connect between hydraulic motor 3 and the power transmission shaft 5, the concentricity height, compact conformation can reduce beating of power transmission shaft.
Claims (2)
1. the internal grinder of heavy caliber seamless steel pipe, comprise power transmission shaft, the front end of described power transmission shaft is fixedlyed connected with emery wheel, described power transmission shaft by bearings in axle sleeve, it is characterized in that the rear end of described power transmission shaft is connected the output of a hydraulic motor, described hydraulic motor is arranged in the motor cover, and described motor cover is fixedlyed connected with described axle sleeve, a fixedly connected lengthening mill bar connects grinding pressure in the rear end of described lengthening mill bar and adjusts oil cylinder in the rear end of described motor cover.
2. according to the internal grinder of the described heavy caliber seamless steel pipe of claim 1, it is characterized in that the end face of described emery wheel is provided with the driving flange, described driving flange is fixedlyed connected with described power transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105091545A CN101972953A (en) | 2010-10-18 | 2010-10-18 | Internal grinding machine for large-caliber seamless steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105091545A CN101972953A (en) | 2010-10-18 | 2010-10-18 | Internal grinding machine for large-caliber seamless steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101972953A true CN101972953A (en) | 2011-02-16 |
Family
ID=43572877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105091545A Pending CN101972953A (en) | 2010-10-18 | 2010-10-18 | Internal grinding machine for large-caliber seamless steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101972953A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184763A (en) * | 2011-03-07 | 2011-09-14 | 吴江市中信科技有限公司 | Copper pipe inner wall dehairer |
| CN104084856A (en) * | 2014-06-27 | 2014-10-08 | 陆冬艳 | Grinding tool |
-
2010
- 2010-10-18 CN CN2010105091545A patent/CN101972953A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184763A (en) * | 2011-03-07 | 2011-09-14 | 吴江市中信科技有限公司 | Copper pipe inner wall dehairer |
| CN102184763B (en) * | 2011-03-07 | 2013-01-02 | 吴江市中信科技有限公司 | Copper pipe inner wall dehairer |
| CN104084856A (en) * | 2014-06-27 | 2014-10-08 | 陆冬艳 | Grinding tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110216 |