CN103470910B - The online Stetch Wrapping Machine of a kind of pipeline - Google Patents

The online Stetch Wrapping Machine of a kind of pipeline Download PDF

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Publication number
CN103470910B
CN103470910B CN201310437631.5A CN201310437631A CN103470910B CN 103470910 B CN103470910 B CN 103470910B CN 201310437631 A CN201310437631 A CN 201310437631A CN 103470910 B CN103470910 B CN 103470910B
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China
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frame
shaped
fixed
saw
walker
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CN103470910A (en
Inventor
尹业宏
邬述晖
杨怀玉
喻鹤
方军
李永光
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Hubei University of Technology
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Hubei University of Technology
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Abstract

The present invention relates to the online Stetch Wrapping Machine of a kind of pipeline, the winding of online anticorrosion belt can be carried out to the petroleum pipeline of the underground of excavation, if rust cleaning mixed by band, spray-coating apparatus can eliminate rust online to pipeline and spray paint.The present invention is primarily of traveling gear, wind composition, and traveling gear dragging wind is wriggled and advanced on pipeline, and anticorrosion belt is spirally wrapped around on pipeline by wind.Therefore, tool of the present invention has the following advantages: 1. can automatic rotation and walking; 2. easy to operate, structure is simple; 3. easy accessibility, economy and durability; 4. field work, pollutes little; 5. safe and practical.

Description

The online Stetch Wrapping Machine of a kind of pipeline
Technical field
The present invention relates to the online Stetch Wrapping Machine of a kind of pipeline, can be placed in ditch or the pipeline of buried underground complete online be wound around anticorrosion belt, the mechanical device of the work such as to spray paint.
Background technique
Current domestic existing pipe winding machine mostly is and carries out winding package before dispatching from the factory, and pipeline turns round and then completes winding in Stetch Wrapping Machine, can not be wound around online; And the manually-operated stage is mainly rested on for online pipeline winding, in the process of operation, workman's workload is large, working strength is high, dangerous large, when operating, likely there will be pitch and splashing, operator are damaged, and manually-operated efficiency is lower, coating quality is poor, just because of manual operation efficiency is low, length consuming time, this adds increased the engineering cost that whole under ground piping protects again.
Summary of the invention
The manual work intensity that the present invention mainly solves online pipeline protection is large, inefficiency, the technical problem of the low grade of coating quality; Provide one can automatic rotation and walking easy to operate, easy accessibility, the economical and practical online Stetch Wrapping Machine of a kind of pipeline.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
The online Stetch Wrapping Machine of a kind of pipeline, is characterized in that, comprising:
One winding mechanism: described winding mechanism comprises the take-up strap fixing frame being wound around frame, reversing frame and being fixed on reversing frame; Described winding frame is provided with driving mechanism, and described reversing frame can drive take-up strap fixing frame to rotate under the effect of driving mechanism;
One traveller: described traveller comprise front walker, linear rail and with rear walker; Described front walker is fixed on one end of linear rail, the described linear rail the other end with through being wound around frame and reversing frame is fixed, described rear walker is arranged on front walker and winding frame by linear bearing also can linearly moves back and forth as straight line by guide rail through linear rail; Front walker is provided with the pusher for driving the online Stetch Wrapping Machine of whole pipeline to advance, and described front walker and rear walker are equipped with at least two are fixed the online Stetch Wrapping Machine of whole pipeline move ahead fastening device and rear row fastening device for clamping pipeline.
At the above-mentioned online Stetch Wrapping Machine of a kind of pipeline, walking framework, walking cylinder and the fastening device that moves ahead before being fixed on walking framework before described front walker comprises, piston rod and the rear walker of described walking cylinder are connected;
Described rear walker comprising rear walking frame-saw, being fixed on the walker supporting wheel of rear walking frame-saw, being fixed on the rear row fastening device of rear walking frame-saw and the framework open-and-close mechanism for opening rear walking frame-saw.
At the above-mentioned online Stetch Wrapping Machine of a kind of pipeline, described winding frame comprises winding frame-saw, and the driving mechanism be wound around on frame-saw is one and is fixed on the oil hydraulic motor be wound around on frame-saw, and the output terminal of oil hydraulic motor connects a pair circular cone engaging gear; Described winding frame-saw is also fixed with and is wound around frame and the winding frame supporting wheel that can regulate clamping caliber for supporting;
Described reversing frame comprise revolution support body, be fixed on revolution support body gear ring, with gear ring meshed gears, described gear is fixing on the driving shaft, described live axle is also fixed with in above-mentioned a pair circular cone engaging gear, described live axle can rotate thus drive revolution support body to rotate under the driving of oil hydraulic motor, be wound around circumference on frame-saw and be evenly fixed with at least three upper saw pulleys, the guiding groove linear contact lay in the external wall of described reversing frame and upper saw pulley;
Described take-up strap fixing frame comprise one be fixed on revolution support body on support and two ends be fixed on support for placing the axle that rises of take-up strap;
At the above-mentioned online Stetch Wrapping Machine of a kind of pipeline, described front walking framework, rear walking frame-saw, winding frame-saw include two bow-shaped supports; The other end to be formed by connecting an annular frame-saw by hinged bolts by guide for one end of two bow-shaped supports.
At the above-mentioned online Stetch Wrapping Machine of a kind of pipeline, described framework open-and-close mechanism comprises the free rotating pin that two ends, left and right are symmetricly set on rear walker top, bearing pin bores interior threaded hole, and screw handle is through the folding of walker, front walker, winding frame after the tapped hole realization of two free rotating pins.
At the above-mentioned online Stetch Wrapping Machine of a kind of pipeline, described walker supporting wheel and winding frame supporting wheel include an interior U-shaped frame being fixed on the outer U-shaped frame on frame-saw and being arranged in outer U-shaped frame; Described interior U-shaped frame internal fixtion back shaft, back shaft is provided with pulley; Outer U-shaped frame top has hole, and interior U-shaped frame top all has interior threaded hole, studdle through outer U-shaped frame topped hole and hinged with outer U-shaped frame top after be connected with the interior threaded hole on interior U-shaped frame top, interior U-shaped frame can move up and down under the adjustment of studdle.
At the above-mentioned online Stetch Wrapping Machine of a kind of pipeline, described rear row fastening device comprises a U-shaped be fixed on frame-saw and to be fixedly clamped frame and a clamping cylinder, and be fixedly clamped frame top and a clip claw assembly of the U-shaped that described clamping cylinder piston rod passes is fixed; Described clip claw assembly is a U-board arranging U-shaped and be fixedly clamped in frame, and the opening end of described U-board is arcuate serrated shape, and the top of U-board and piston rod one end of clamping cylinder are fixed; The described U-shaped frame inwall that is fixedly clamped is symmetrically fixed with Z-shaped guide plate, the both sides of U-board some be arranged on Z-shaped guide plate and U-shaped and be fixedly clamped in guiding groove that frame inwall forms.
At the above-mentioned online Stetch Wrapping Machine of a kind of pipeline, the U-shaped fastening device that moves ahead is drawn together a L clevis be fixed on frame-saw and is fastened frame and a clamping cylinder, the L clevis that described clamping cylinder piston rod passes fastens frame top and a clip claw assembly is fixed; Described clip claw assembly is one and arranges L clevis and fasten L shaped plate in frame, and the opening end of described L shaped plate is arcuate serrated shape, and the top of L shaped plate and piston rod one end of clamping cylinder are fixed; Described L clevis fastens frame inwall and is symmetrically fixed with Z-shaped guide plate, the both sides of L shaped plate some be arranged on Z-shaped guide plate and L clevis and fasten in the guiding groove that frame inwall forms, the middle part of L shaped plate has elongated hole groove, passes for walking cylinder.
Therefore, tool of the present invention has the following advantages: 1. can automatic rotation and walking; 2. easy to operate, structure is simple; 3. easy accessibility, economy and durability; 4. field work, pollutes little; 5. safe and practical.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention when working when position 1.
Fig. 2 is the perspective view of the present invention when working when position 2.
Fig. 3 is the perspective view of oil hydraulic motor and bevel gear in the present invention.
Fig. 4 is the perspective view of rear row fastening device in the present invention.
Fig. 5 is the perspective view of fastening device of moving ahead in the present invention.
Fig. 6 is the perspective view of upper saw pulley in the present invention.
Fig. 7 is the perspective view of rear walker in the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technological scheme of the present invention is described in further detail.
Embodiment:
One, concrete structure of the present invention is first introduced: the present invention mainly comprises:
One winding mechanism 1: described winding mechanism 1 comprises the take-up strap fixing frame 3 being wound around frame 1.1, reversing frame 1.2 and being fixed on reversing frame 1.2; Described winding frame 1.1 is provided with driving mechanism, and described reversing frame 1.2 can drive take-up strap fixing frame 3 to rotate under the effect of driving mechanism;
One traveller 2: described traveller 2 comprise front walker 2.2, linear rail 2.3 and with rear walker 2.1; Described front walker 2.2 is fixed on one end of linear rail 2.3, described linear rail 2.3 the other end is fixed with reversing frame 1.2 with through being wound around frame 1.1, and described rear walker 2.1 is arranged on front walker 2.2 and winding frame 1.1 by linear bearing also can linearly moves back and forth as straight line by guide rail 2.3 through linear rail 2.3; Front walker 2.2 is provided with the pusher for driving the online Stetch Wrapping Machine of whole pipeline to advance, and described front walker 2.2 and rear walker 2.1 are equipped with at least two are fixed the online Stetch Wrapping Machine of the whole pipeline fastening device 2.2.2 and rear row fastening device 2.1.1 that moves ahead for clamping pipeline.
Walking framework 2.2.1, walking cylinder 2.2.3 and the fastening device 2.2.2 that moves ahead before being fixed on walking framework 2.2.1 before front walker 2.2 comprises, piston rod and the rear walker 1.1 of described walking cylinder 2.2.3 are connected;
Rear walker 2.1 comprising rear walking frame-saw 2.1.2, being fixed on the walker supporting wheel 2.1.3 of rear walking frame-saw 2.1.2, being fixed on the rear row fastening device 2.1.1 of rear walking frame-saw 2.1.2 and the framework open-and-close mechanism 2.1.4 for opening rear walking frame-saw 2.1.2.
Be wound around frame 1.1 and comprise winding frame-saw 1.1.4, the driving mechanism be wound around on frame-saw 1.1.4 is one and is fixed on the oil hydraulic motor 1.1.2 be wound around on frame-saw 1.1.4, and the output terminal of oil hydraulic motor 1.1.2 connects a pair circular cone engaging gear 1.1.3; Described winding frame-saw 1.1.4 is also fixed with and is wound around frame 1.1 and the winding frame supporting wheel 1.1.1 that can regulate clamping caliber for supporting;
Reversing frame 1.2 comprises revolution support body 1.2.3, is fixed on the gear ring 1.2.2 of revolution support body 1.2.3, with gear ring 1.2.2 meshed gears 1.2.1, described gear 1.2.1 is fixing on the driving shaft, described live axle is also fixed with in above-mentioned a pair circular cone engaging gear 1.1.3, described live axle can rotate thus drive revolution support body 1.2.3 to rotate under the driving of oil hydraulic motor 1.1.2, be wound around circumference on frame-saw 1.1.4 and be evenly fixed with at least three upper saw pulley 1.2.4, the guiding groove linear contact lay in described revolution support body 1.2.3 outer wall and upper saw pulley 1.2.4;
Take-up strap fixing frame comprises one and is fixed on support 3.1 on revolution support body 1.2.3 and two ends are fixed on support 3.1 for placing the axle 3.2 that rises of take-up strap 3.3;
Front walking framework 2.2.1, rear walking frame-saw 2.1.2, winding frame-saw 1.1.4 include two bow-shaped support 2.1.1.1; The other end to be formed by connecting an annular frame-saw by hinged bolts by guide 2.1.1.2 for one end of two bow-shaped support 2.1.1.1.
Framework open-and-close mechanism 2.1.4 comprises the free rotating pin that two ends, left and right are symmetricly set on rear walker 2.1 top, bearing pin bores interior threaded hole, and screw handle is through the folding of walker 2.1, front walker 2.2, winding frame 1.1 after the tapped hole realization of two free rotating pins.
Walker supporting wheel 2.1.3 and winding frame supporting wheel 1.1.1 includes an interior U-shaped frame 5 being fixed on the outer U-shaped frame 4 on frame-saw and being arranged in outer U-shaped frame 4; Interior U-shaped frame 5 internal fixtion back shaft 6, back shaft 6 is provided with pulley 7; Outer U-shaped frame 4 top has hole, interior U-shaped frame 5 top all has interior threaded hole, studdle 8 through outer U-shaped frame 4 topped hole and hinged with outer U-shaped frame 4 top after be connected with the interior threaded hole on interior U-shaped frame 5 top, described interior U-shaped frame 5 can move up and down under the adjustment of studdle 8.It is noted herein that, studdle 8 through after outer U-shaped frame 4 topped hole, need with outer U-shaped frame 4 topped hole hinged, that is: studdle 8 can the interior circumference that keeps of U-shaped frame 4 topped hole rotate but can not move axially outside, and articulated manner adopts the mode of prior art to realize; As shown in Figure 6, in the present embodiment, two semi-circular blocks that employing is form the circular block of a middle with hole, two semi-circular blocks are respectively by being bolted to outer U-shaped frame 4 top, aperture in the middle of circular block is less than the diameter of studdle 8, arrange in studdle 8 upper part the holding part that one section of its diameter is less than the aperture in the middle of circular block, this holding part is arranged in the hole of circular block fixing, can not move up and down but can circumference rotate.
Rear row fastening device 2.1.1 comprises a U-shaped be fixed on frame-saw and to be fixedly clamped frame 9 and a clamping cylinder, and be fixedly clamped frame 9 top and a clip claw assembly of the U-shaped that described clamping cylinder piston rod passes is fixed; Described clip claw assembly is a U-board 10 arranging U-shaped and be fixedly clamped in frame 9, and the opening end of described U-board 10 is arcuate serrated shape, and the top of U-board 10 and piston rod one end of clamping cylinder are fixed; Described U-shaped frame 9 inwall that is fixedly clamped is symmetrically fixed with Z-shaped guide plate, the both sides of U-board 10 some be arranged on Z-shaped guide plate and U-shaped and be fixedly clamped in guiding groove that frame 9 inwall forms.
The U-shaped fastening device 2.2.2 that moves ahead comprises a L clevis be fixed on frame-saw and fastens frame 11 and a clamping cylinder, and the L clevis that described clamping cylinder piston rod passes fastens frame 11 top and a clip claw assembly is fixed; Described clip claw assembly is one and arranges L clevis and fasten L shaped plate 12 in frame 11, and the opening end of described L shaped plate 12 is arcuate serrated shape, and the top of L shaped plate 12 and piston rod one end of clamping cylinder are fixed; Described L clevis fastens frame 11 inwall and is symmetrically fixed with Z-shaped guide plate, the both sides of L shaped plate 12 some be arranged on Z-shaped guide plate and L clevis and fasten in the guiding groove that frame 11 inwall forms, the middle part of L shaped plate 12 has elongated hole groove, passes for walking cylinder 2.2.3.
Two, workflow of the present invention is introduced below, during work, as shown in accompanying drawing 1, Fig. 2, Fig. 3, walking cylinder 2.2.3 is first in the position of Fig. 1, then the cylinder 2.2.3 that walks makes stretching motion, drag wind 1 to advance, go to the position of Fig. 2, then after, the two ends fastening device of walker 2.1 unclamps, the two ends fastening device clamping of front walker 2.2, and the cylinder 2.2.3 that now walks makes contractile motion, rear walker 2 .1 backhaul, get back to the position of Fig. 1, so repeatedly, realize whole device and advance on pipeline in the mode of wriggling.Traveling gear is uniform-distribution with three linear rails 2.3, and the front end of linear rail 2.3 is fixed on front walker 2.2, and through the linear slide of rear walker 2.1, rear end is connected with winding frame 1.1, plays support guide.The two ends being wound around frame 1.1 are uniformly distributed three axles that a pair upper saw pulley 1.2.4 is housed, and play a supportive role to reversing frame 1.2.3.
For adapting to the installation requirements at online pipeline, front walker 2.2, rear walker 2.1, winding frame 1.1 and reversing frame 1.2 all adopt bow-shaped support and pin to be formed by connecting, wherein, two ends, the left and right symmetry at walker 2.1 top is equipped with bearing pin free to rotate respectively, bearing pin bores interior threaded hole, screw handle is through the tapped hole of bearing pin, by framework open-and-close mechanism 2.1.4, implement device folding when mounted, behind the location completing whole device, be bolted walker before and after pinning, i.e. the installment work of finishing device on online pipeline.
Oil hydraulic motor 1.1.2 is equipped with at the top being wound around frame 1.1, oil hydraulic motor axle head cone gear 1.1.3 engagement driving, motion is passed on gear, gear ring 1.1.2 and rotary support 1.2.3 is connected, by gear 1.2.1 and gear ring 1.2.2 transmission, by transmission of power to rotary support 1.2.3, take-up strap fixing frame 3 is fixed on rotary support 1.2.3, realizes the rotation motion of take-up strap fixing frame 3.3 around pipeline.
As shown in Figure 2, rear walker 2.1 is welded with walking wheel carrier respectively with the two ends being wound around frame 1.1, and walking wheel carrier includes an interior U-shaped frame 5 being fixed on the outer U-shaped frame 4 on frame-saw and being arranged in outer U-shaped frame 4; Described interior U-shaped frame 5 internal fixtion back shaft 6, back shaft 6 is provided with pulley 7; Outer U-shaped frame 4 top has hole, interior U-shaped frame 5 top all has interior threaded hole, studdle 8 is connected with the interior threaded hole on interior U-shaped frame 5 top through after outer U-shaped frame 4 topped hole hinge, interior U-shaped frame 5 can move up and down under the adjustment of studdle 8, thus the height of adjusting roller device is to adapt to different pipe diameter demands.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims (8)

1. the online Stetch Wrapping Machine of pipeline, is characterized in that, comprising:
One winding mechanism (1): described winding mechanism (1) comprises the take-up strap fixing frame (3) being wound around frame (1.1), reversing frame (1.2) and being fixed on reversing frame (1.2); Described winding frame (1.1) is provided with driving mechanism, and described reversing frame (1.2) can drive take-up strap fixing frame (3) to rotate under the effect of driving mechanism;
One traveller (2): described traveller (2) comprises front walker (2.2), linear rail (2.3) and rear walker (2.1); Described front walker (2.2) is fixed on one end of linear rail (2.3), described linear rail (2.3) the other end is fixed with reversing frame (1.2) through being wound around frame (1.1), and described rear walker (2.1) is arranged on front walker (2.2) and winding frame (1.1) by linear bearing also can linearly moves back and forth as straight line by guide rail (2.3) through linear rail (2.3); Front walker (2.2) is provided with the pusher for driving the online Stetch Wrapping Machine of whole pipeline to advance, and described front walker (2.2) and rear walker (2.1) are equipped with at least two are fixed the online Stetch Wrapping Machine of the whole pipeline fastening device that moves ahead (2.2.2) and rear row fastening device (2.1.1) for clamping pipeline.
2. the online Stetch Wrapping Machine of a kind of pipeline according to claim 1, it is characterized in that, walking framework (2.2.1) before described front walker (2.2) comprises, walking cylinder (2.2.3) and the fastening device that moves ahead (2.2.2) before being fixed in walking framework (2.2.1), piston rod and the rear walker (1.1) of described walking cylinder (2.2.3) are connected;
Described rear walker (2.1) comprising rear walking frame-saw (2.1.2), being fixed on the walker supporting wheel (2.1.3) of rear walking frame-saw (2.1.2), being fixed on the rear row fastening device (2.1.1) of rear walking frame-saw (2.1.2) and the framework open-and-close mechanism (2.1.4) for opening rear walking frame-saw (2.1.2).
3. the online Stetch Wrapping Machine of a kind of pipeline according to claim 2, it is characterized in that, described winding frame (1.1) comprises winding frame-saw (1.1.4), the driving mechanism be wound around on frame-saw (1.1.4) is one and is fixed on the oil hydraulic motor (1.1.2) be wound around on frame-saw (1.1.4), and the output terminal of oil hydraulic motor (1.1.2) connects a pair circular cone engaging gear (1.1.3); Described winding frame-saw (1.1.4) is also fixed with and is wound around frame (1.1) and the winding frame supporting wheel (1.1.1) that can regulate clamping caliber for supporting;
Described reversing frame (1.2) comprises revolution support body (1.2.3), be fixed on the gear ring (1.2.2) of revolution support body (1.2.3), with gear ring (1.2.2) meshed gears (1.2.1), described gear (1.2.1) is fixing on the driving shaft, described live axle is also fixed with in above-mentioned a pair circular cone engaging gear (1.1.3), described live axle can rotate thus drive revolution support body (1.2.3) to rotate under the driving of oil hydraulic motor (1.1.2), be wound around the upper circumference of frame-saw (1.1.4) and be evenly fixed with at least three upper saw pulleys (1.2.4), guiding groove linear contact lay in described revolution support body (1.2.3) outer wall and upper saw pulley (1.2.4),
Described take-up strap fixing frame comprises one and is fixed on support (3.1) in revolution support body (1.2.3) and two ends are fixed on support (3.1) for placing the axle that rises (3.2) of take-up strap (3.3).
4. the online Stetch Wrapping Machine of a kind of pipeline according to claim 3, is characterized in that, described front walking framework (2.2.1), rear walking frame-saw (2.1.2), winding frame-saw (1.1.4) include two bow-shaped supports (2.1.1.1); The other end to be formed by connecting an annular frame-saw by hinged bolts by guide (2.1.1.2) for one end of two bow-shaped supports (2.1.1.1).
5. the online Stetch Wrapping Machine of a kind of pipeline according to claim 4, it is characterized in that, described framework open-and-close mechanism (2.1.4) comprises the free rotating pin that two ends, left and right are symmetricly set on rear walker (2.1) top, bearing pin bores interior threaded hole, and screw handle is through the folding of walker (2.1), front walker (2.2), winding frame (1.1) after the tapped hole realization of two free rotating pins.
6. the online Stetch Wrapping Machine of a kind of pipeline according to claim 3, it is characterized in that, described walker supporting wheel (2.1.3) and winding frame supporting wheel (1.1.1) include an interior U-shaped frame (5) being fixed on the outer U-shaped frame (4) on frame-saw and being arranged in outer U-shaped frame (4); Described interior U-shaped frame (5) internal fixtion back shaft (6), back shaft (6) is provided with pulley (7); Outer U-shaped frame (4) top has hole, interior U-shaped frame (5) top all has interior threaded hole, studdle (8) through outer U-shaped frame (4) topped hole and with outer U-shaped frame (4) top hinged after be connected with the interior threaded hole on interior U-shaped frame (5) top, described interior U-shaped frame (5) can move up and down under the adjustment of studdle (8).
7. the online Stetch Wrapping Machine of a kind of pipeline according to claim 6, it is characterized in that, described rear row fastening device (2.1.1) comprises a U-shaped be fixed on frame-saw and to be fixedly clamped frame (9) and a clamping cylinder, and be fixedly clamped frame (9) top and a clip claw assembly of the U-shaped that described clamping cylinder piston rod passes is fixed; Described clip claw assembly is a U-board (10) arranging U-shaped and be fixedly clamped in frame (9), and the opening end of described U-board (10) is arcuate serrated shape, and the top of U-board (10) and piston rod one end of clamping cylinder are fixed; Described U-shaped frame (9) inwall that is fixedly clamped is symmetrically fixed with Z-shaped guide plate, the both sides of U-board (10) some be arranged on Z-shaped guide plate and U-shaped and be fixedly clamped in guiding groove that frame (9) inwall forms.
8. the online Stetch Wrapping Machine of a kind of pipeline according to claim 6, it is characterized in that, the U-shaped fastening device (2.2.2) that moves ahead comprises a L clevis be fixed on frame-saw and fastens frame (11) and a clamping cylinder, and the L clevis that described clamping cylinder piston rod passes fastens frame (11) top and a clip claw assembly is fixed; Described clip claw assembly is one and arranges L clevis and fasten L shaped plate (12) in frame (11), and the opening end of described L shaped plate (12) is arcuate serrated shape, and the top of L shaped plate (12) and piston rod one end of clamping cylinder are fixed; Described L clevis fastens frame (11) inwall and is symmetrically fixed with Z-shaped guide plate, the both sides of L shaped plate (12) some be arranged on Z-shaped guide plate and L clevis and fasten in the guiding groove that frame (11) inwall forms; The middle part of described L shaped plate (12) has elongated hole groove, passes for walking cylinder (2.2.3).
CN201310437631.5A 2013-09-24 2013-09-24 The online Stetch Wrapping Machine of a kind of pipeline Expired - Fee Related CN103470910B (en)

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