CN217070477U - Chamfering device for preventing pipe jacking from piercing and reducing metal loss - Google Patents

Abstract

The utility model provides a pipe jacking scour protection is worn and is reduced metal loss's chamfer device, include: backup pad, mount, plug draw-in groove and chamfer roller, the top side of backup pad is fixed with the slide rail, the spiral-lock has the thread slipping on the slide rail, be fixed with the adjustable shelf on the thread slipping, the rotating electrical machines is installed to top one side of adjustable shelf, the output of rotating electrical machines is fixed with the plug fastener, the inside knot of plug fastener is equipped with the plug, the plug draw-in groove has been seted up on the plug, it bites into the card through the plug draw-in groove to be convenient for increase thick end metal flow, has both reduced the unnecessary metal of metal cup bottom weight and has increased the metal yield on flowing to the body, has realized the throat chucking again and has solved the pierced billet and has worn unusually, improves production efficiency, through the pivot angle that changes the chamfer angle of chamfering roller, reduces at moulding process, guarantees the completeness of throat.

Description

Chamfering device for preventing pipe jacking from piercing and reducing metal loss

Technical Field

The utility model belongs to the technical field of steel pipe production, specifically be a pipe jacking scour protection is worn and is reduced metal loss's chamfer device.

Background

The mandrel is the most important deformation tool in the CPE pipe jacking machine set. The hollow billet is rolled to the accurate range through the combined action of the roller and the core rod, the aim of reducing the wall is achieved, the surface quality and the state of the core rod are good and bad, and the smooth production, the product precision and the inner surface quality of the pipe body are directly related;

the pipe wall of the capillary at the reducing part (the cup bottom) is thick, and does not participate in the pipe-jacking rolling, only plays the role of fixing the mandrel head and the pipe head, the wall thickness of the joint of the cup bottom and the normal capillary is thin, the stress is not uniform, the capillary is easy to fall off during the rolling of the subsequent tension reducing process, the quality and the production are abnormal, therefore, the cup bottom needs to be cut off after the top pipe is rolled, the cup bottom needs to occupy 2-3 kg of metal, the loss of the metal yield is serious after the cutting off, it is desirable to minimize the weight of the metal at the bottom of the cup, so that as much metal as possible flows onto the tube, however, if the length or depth of the cup bottom is reduced and the length and the step of the head of the mandrel are controlled, the cup bottom joint is not firm in the pipe jacking process, when the mandrel passes through the pipe jacking machine frame, the core rod is punched out of the cup bottom to generate punching, which is a serious production accident and greatly influences the production efficiency.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a pipe jacking scour protection wears and reduces metal loss's chamfer device to solve the problem that proposes in the above-mentioned background art, the utility model discloses the structure has reduced the unnecessary metal of metal cup bottom weight and has increased the metal yield on flowing the body, has realized the throat chucking and has solved the pierced billet and has worn unusually, improves production efficiency.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a top pipe scour protection wears and reduces metal loss's chamfer device, includes: backup pad, mount, promotion cylinder, action bar, rotary disk, adjustable shelf, slide rail, thread slipping, rotating electrical machines, plug fastener, pushing electrical machines, lead screw, plug draw-in groove, chamfer roller, first connecting seat, second connecting seat and spacing section of thick bamboo, the top side of backup pad is fixed with the slide rail, the spiral-lock is equipped with the thread slipping on the slide rail, be fixed with the adjustable shelf on the thread slipping, rotating electrical machines is installed to top one side of adjustable shelf, rotating electrical machines's output is fixed with the plug fastener, the inside of plug fastener is buckled and is equipped with the plug, the plug draw-in groove has been seted up on the plug.

Further, push motor is installed to the top side of backup pad, push motor's output is installed the lead screw, the screw has been seted up to the inside of thread slipping, the lead screw is worn to establish in the screw, realizes the propulsion of adjustable shelf.

Further, be fixed with the mount in the backup pad, push cylinder is installed to one side of mount, push cylinder's effect end is installed and is acted on the pole, be fixed with the carousel on the action pole.

Further, the opposite side of mount is provided with a spacing section of thick bamboo, the inboard of a spacing section of thick bamboo is the annular array and is equipped with three engaging lug, can cooperate the cooperation installation that realizes the chamfer roller.

Further, the inside of a spacing section of thick bamboo is the annular array and is provided with three roller, the cover is equipped with the chamfer roller on the roller, the both ends of roller are fixed with first connecting seat and second connecting seat respectively, first connecting seat passes through the hinge cooperation and installs in the outside of rotary disk, the second connecting seat passes through the round pin hub connection with the engaging lug of a spacing inboard.

Furthermore, the rotating disc and the limiting cylinder are of a concentric structure, and the central axis of the rotating disc and the central axis of the core rod are on the same straight line, so that the stability of the chamfer can be guaranteed.

The utility model has the advantages that: the utility model discloses a pipe jacking scour protection wears and reduces metal loss's chamfer device, through the operation of the driving motor, drive the lead screw, in the lead screw rotation process, promote the thread slipping and slide along the slide rail, realize the propulsion of adjustable shelf, the rotating electrical machines operation, drive the rotation of plug fastener, realize the steel pipe rotation of cover on the plug, in the rotation process, realize the propulsion of steel pipe, set up the plug draw-in groove on the plug, be convenient for through the plug draw-in groove increase thick end metal flow bite into the card advance, both reduced the unnecessary metal of metal cup bottom weight and flowed to the body and increased the metal yield, because buckle device has realized that the throat chucking has solved the pierced billet and has worn the abnormity, improve production efficiency;

through the push cylinder operation, under the cooperation of action bars, realize the pulling to the rotary disk, at the pulling in-process, can change, be provided with the surplus that moves about in first connecting seat, can change the pivot angle of chamfer roller in relative interval, can realize progressively change chamfer and press the angle, reduce at moulding process, guarantee the complete of throat.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall front perspective structure of the present invention;

FIG. 2 is a schematic view of the overall side-view three-dimensional structure of the present invention;

FIG. 3 is a schematic overall sectional structure of the present invention;

in the figure: 1. a support plate; 2. a fixed mount; 3. a push cylinder; 4. an action rod; 5. rotating the disc; 6. a movable frame; 7. a slide rail; 8. sliding and buckling; 9. a rotating electric machine; 10. a core rod fastener; 11. a push motor; 12. a screw rod; 13. a core rod; 14. a core rod clamping groove; 15. chamfering the rollers; 16. a roll shaft; 17. a first connecting seat; 18. a second connecting seat; 19. a limiting cylinder.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3, a chamfering device for preventing pipe jacking from piercing and reducing metal loss comprises: the device comprises a supporting plate 1, a fixed frame 2, a pushing cylinder 3, an action rod 4, a rotating disk 5, a movable frame 6, a sliding rail 7, a sliding buckle 8, a rotating motor 9, a core rod fastener 10, a pushing motor 11, a lead screw 12, a core rod 13, a core rod clamping groove 14, a chamfering roller 15, a roller shaft 16, a first connecting seat 17, a second connecting seat 18 and a limiting cylinder 19, wherein the sliding rail 7 is fixed on the top side of the supporting plate 1, the sliding buckle 8 is buckled on the sliding rail 7, the movable frame 6 is fixed on the sliding buckle 8, the rotating motor 9 is installed on one side of the top of the movable frame 6, the core rod fastener 10 is fixed on the output end of the rotating motor 9, the core rod 13 is buckled inside the core rod fastener 10, the core rod clamping groove 14 is formed on the core rod 13, the pushing motor 11 is installed on the top side of the supporting plate 1, the lead screw 12 is installed on the output end of the pushing motor 11, a screw hole is formed inside the sliding buckle 8, the lead screw rod 12 is arranged in the screw hole in a penetrating way, the operation of push motor 11, drive lead screw 12, at the rotatory in-process of lead screw 12, promote the thread slipping 8 and slide along slide rail 7, realize the propulsion of adjustable shelf 6, the operation of rotating electrical machines 9, it is rotatory to drive plug fastener 10, it is rotatory to realize the steel pipe of cover on plug 13, at rotatory in-process, realize the propulsion of steel pipe, plug draw-in groove 14 has been seted up on plug 13, it bites into the card to be convenient for increase thick end metal flow through plug draw-in groove 14, both reduced the unnecessary metal of metal cup bottom weight and flowed and increased the metal yield on the body, again because buckle device has realized the throat chucking and has solved the pierced ram and run unusually.

A fixed frame 2 is fixed on a supporting plate 1, a pushing cylinder 3 is installed on one side of the fixed frame 2, an action rod 4 is installed at the action end of the pushing cylinder 3, a rotating disc 5 is fixed on the action rod 4, a limiting cylinder 19 is arranged on the other side of the fixed frame 2, three connecting lugs are arranged on the inner side of the limiting cylinder 19 in an annular array manner, three roller shafts 16 are arranged in the limiting cylinder 19 in an annular array manner, chamfer rollers 15 are sleeved on the roller shafts 16, a first connecting seat 17 and a second connecting seat 18 are respectively fixed at two ends of each roller shaft 16, the first connecting seat 17 is installed on the outer side of the rotating disc 5 in a matching manner through a hinge, the second connecting seat 18 is connected with the connecting lugs on the inner side of the limiting cylinder 19 through a pin shaft, the rotating disc 5 and the limiting cylinder 19 are in a concentric structure, the central axis of the rotating disc 5 and the central axis of a core rod 13 are on the same straight line, during operation, the pushing cylinder 3 operates under the matching of the action rod 4, the realization is to the pulling of rotary disk 5, and at the pulling in-process, can change, is provided with the movable allowance in first connecting seat 17, can change the pivot angle of chamfer roller 15 in relative interval, can realize progressively change chamfer press angle, reduces at moulding process, guarantees the complete of throat.

The utility model discloses when specifically implementing: when the device is used, a mandrel clamping groove 14 is formed in a mandrel 13, metal flow at a thickening end is facilitated to be clamped in through the mandrel clamping groove 14, so that the metal yield is increased when excessive metal at the bottom of a metal cup flows onto a pipe body, the necking clamping is realized, the punching abnormity of a pierced billet is solved, when chamfering processing is carried out, a motor 11 is pushed to operate to drive a screw rod 12, a sliding buckle 8 is pushed to slide along a sliding rail 7 in the rotating process of the screw rod 12, the propelling of a movable frame 6 is realized, a motor 9 is rotated to operate to drive a mandrel fastener 10 to rotate, the steel pipe sleeved on the mandrel 13 is rotated, and the propelling of the steel pipe is realized in the rotating process;

in the propulsion process, through the operation of pushing cylinder 3, under the cooperation of action bars 4, realize the pulling to rotary disk 5, at the pulling in-process, can change, be provided with the clearance in first connecting seat 17, can change the pivot angle of chamfer roller 15 in relative interval, can realize progressively change chamfer press angle, reduce at moulding process, guarantee the complete of throat.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides a top pipe scour protection wears and reduces metal loss's chamfer device, includes: backup pad (1), mount (2), driving motor (11), lead screw (12), plug (13) and plug draw-in groove (14), its characterized in that, the top side of backup pad (1) is fixed with slide rail (7), the spiral-lock has draw-in thread (8) on slide rail (7), be fixed with adjustable shelf (6) on draw-in thread (8), rotating electrical machines (9) are installed to top one side of adjustable shelf (6), the output of rotating electrical machines (9) is fixed with plug fastener (10), plug (13) are buckled to the inside of plug fastener (10), plug draw-in groove (14) have been seted up on plug (13).

2. The pipe jacking anti-impact and metal loss reducing chamfering device according to claim 1, wherein a pushing motor (11) is installed on the top side of the supporting plate (1), a screw rod (12) is installed at the output end of the pushing motor (11), a screw hole is formed inside the slide fastener (8), and the screw rod (12) is arranged in the screw hole in a penetrating manner.

3. The pipe jacking anti-impingement and metal loss reduction chamfering device according to claim 1, wherein a fixed frame (2) is fixed on the supporting plate (1), a pushing cylinder (3) is installed on one side of the fixed frame (2), an action rod (4) is installed at an action end of the pushing cylinder (3), and a rotating disc (5) is fixed on the action rod (4).

4. The pipe jacking anti-impingement and metal loss reduction chamfering device according to claim 3, wherein a limiting cylinder (19) is arranged on the other side of the fixing frame (2), and three connecting lugs are arranged on the inner side of the limiting cylinder (19) in an annular array.

5. The pipe jacking anti-impact and metal loss reduction chamfering device according to claim 4, wherein three roll shafts (16) are arranged in an annular array inside the limiting cylinder (19), chamfering rolls (15) are sleeved on the roll shafts (16), first connecting seats (17) and second connecting seats (18) are respectively fixed at two ends of the roll shafts (16), the first connecting seats (17) are installed on the outer side of the rotating disc (5) through hinge matching, the second connecting seats (18) are connected with connecting lugs on the inner side of the limiting cylinder (19) through pin shafts, and movable allowance is arranged in the first connecting seats (17).

6. The pipe jacking anti-punch and metal loss reduction chamfering device according to claim 3, wherein the rotating disc (5) and the limiting cylinder (19) are in concentric structure, and the central axis of the rotating disc (5) and the central axis of the core rod (13) are in the same straight line.

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