CN214813907U - Flanging and reaming equipment for stainless steel lined composite steel pipe - Google Patents
Flanging and reaming equipment for stainless steel lined composite steel pipe Download PDFInfo
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- CN214813907U CN214813907U CN202121352384.5U CN202121352384U CN214813907U CN 214813907 U CN214813907 U CN 214813907U CN 202121352384 U CN202121352384 U CN 202121352384U CN 214813907 U CN214813907 U CN 214813907U
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Abstract
The utility model discloses a compound steel pipe of inside lining stainless steel is with turn-ups reaming equipment, include: the frame, be provided with the gyro wheel that is used for supporting composite steel pipe in the frame, be provided with two mutual disposition's turn-ups reaming device in the frame, turn-ups reaming device includes turn-ups reaming head and drive turn-ups reaming head is the drive arrangement of back and forth movement, turn-ups reaming head is including the entry guide part, reaming portion and the turn-ups portion that set gradually, turn-ups portion with the one end that reaming portion links to each other forms the turn-ups shaft shoulder, the outer peripheral face of reaming portion with be provided with the turn-ups guide part between the turn-ups shaft shoulder. Use the utility model discloses a compound steel pipe of inside lining stainless steel is with turn-ups reaming equipment can improve the sealing performance between sealed end cap of follow-up expand tube in-process and the inner tube.
Description
Technical Field
The utility model relates to a processing equipment technical field of the compound steel pipe of nonrust steel pipe is established to the parent tube inside lining, concretely relates to turn-ups reaming equipment for inside lining stainless steel compound steel pipe.
Background
In the coal mining process, the remote high-pressure centralized liquid supply pipeline system is required to convey the emulsion for the hydraulic support, a high-pressure rubber pipe or a pipeline coated with a corrosion-resistant layer (paint spraying) outside a seamless steel pipe is generally adopted, the emulsion output by a pump station has high-pressure pulsation impact, the corrosion-resistant layer can fall off under the impact to cause pipeline blockage, the inner wall of the pipeline cannot be coated with the corrosion-resistant layer, chemical treatment modes such as acid pickling and phosphating and the like are adopted, the roughness of the inner surface of the pipeline is poor, the on-way pressure loss is large, the corrosion resistance service life is short, the pipeline cannot be reused, the high-pressure rubber pipe is easy to break except for short service life, and the safety problem occurs. In order to solve the problems, a stainless steel lined and plastic coated composite steel pipe is produced at the beginning, the composite steel pipe takes a seamless steel pipe as a base pipe, the stainless steel pipe is lined inside the seamless steel pipe, and an anticorrosive plastic coating is coated outside the base pipe.
Chinese utility model patent CN205362343U discloses a stainless steel composite pipe processing device, which adds high pressure water in the inner pipe after the two ends of the composite pipe are plugged, so that the short time full length expansion of the inner pipe (stainless steel pipe) is combined with the base pipe compression. However, the line seal is adopted between the tapered plug for sealing and the end face of the composite steel pipe, and leakage is easily caused by poor sealing when high-pressure water is pressurized.
For surface sealing, because the base pipe is generally made of a seamless steel pipe, and the inner hole of the blank pipe has roundness error, under the condition of applying pressure, when the inner pipe (stainless steel pipe) is attached to the inner hole of the base pipe (seamless steel pipe), the roundness error of the inner hole of the base pipe is transferred to the inner pipe, so that although the sealing plug and the inner pipe can realize surface sealing, the roundness error can also cause leakage of a sealing surface.
SUMMERY OF THE UTILITY MODEL
The above-mentioned defect to prior art exists, the utility model aims to solve the technical problem that, a compound for steel pipe turn-ups reaming equipment of inside lining stainless steel is provided, use this turn-ups reaming equipment to carry out reaming and turn-ups to the nonrust steel pipe of inside lining to improve the sealing performance between follow-up expand tube in-process seal plug and the inner tube.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a for compound steel pipe turn-ups reaming equipment of inside lining stainless steel, includes: the device comprises a rack, wherein rollers for supporting the composite steel pipe are arranged on the rack; the flanging reaming device comprises a flanging reaming head and a driving device for driving the flanging reaming head to reciprocate, the flanging reaming head comprises an inlet guide part, a reaming part and a flanging part which are sequentially arranged, the flanging part and one end connected with the reaming part form a flanging shaft shoulder, and the outer peripheral surface of the reaming part and the flanging shaft shoulder are provided with flanging guide parts.
Preferably, the flanging guide part is a smooth transition circular arc.
Preferably, the inlet guide part is frustum-shaped, and the reaming part is frustum-shaped.
Preferably, the counterbore portion includes a first counterbore portion adjacent the entry guide portion and a second counterbore portion adjacent the cuff portion, the first counterbore portion having a taper greater than a taper of the second counterbore portion.
Preferably, the frame is provided with two retaining baffles, the retaining baffles are provided with baffle through holes, and the aperture of each baffle through hole is smaller than the outer diameter of the composite steel pipe and larger than the outer diameter of the flanging part.
Preferably, the rack is provided with a mounting seat, and the retaining baffle is detachably and fixedly connected to the mounting seat.
Preferably, the mounting seat is a fixing plate, a fixing plate through hole is formed in the fixing plate, and the aperture of the fixing plate through hole is larger than that of the baffle through hole.
Preferably, the driving device is a hydraulic oil cylinder, a piston rod of the hydraulic oil cylinder is detachably and fixedly connected with the flanging part, and a cylinder body of the hydraulic oil cylinder is connected to the rack.
Since the technical scheme is used, the beneficial effects of the utility model are that:
the utility model discloses a turn-ups reaming equipment for compound steel pipe of inside lining stainless steel sets up two mutual disposition's turn-ups reaming device, can carry out turn-ups and reaming to the inner tube of compound steel pipe, because the tip of inner tube is by the turn-up, consequently in follow-up expand tube process, when sealed end cap stretches into compound steel pipe, can avoid the sealing washer on the sealed end cap to be influenced sealing performance by the fish tail. The reamed part of the end part of the inner pipe is tightly attached to the pressing sealing surface processed on the inner wall of the base pipe, so that the influence of the roundness error of the base pipe blank on the sealing performance is eliminated. Therefore, use the utility model discloses a compound steel pipe of inside lining stainless steel is with turn-ups reaming equipment can improve the sealing performance between sealed end cap of follow-up expand tube in-process and the inner tube.
The utility model discloses in, the reaming portion of turn-ups reaming head is frustum shape, and reaming portion progressively enlarges diameter when reaming, can make the inner tube progressively by the reaming, avoids taking place to break. The reaming part comprises a first reaming part and a second reaming part, the taper of the first reaming part is larger than that of the second reaming part, so that the flanging reaming head can be separated from the composite steel pipe more easily after flanging and reaming are finished. And the thrust baffle is also arranged on the frame, and if the flanging reaming head is too tightly matched with the end part of the composite steel pipe and cannot be separated, the thrust baffle can further promote the flanging reaming head to be separated from the composite steel pipe.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the flanging and reaming device for a stainless steel lined composite steel pipe of the present invention in a ready state;
FIG. 2 is a schematic structural diagram of the embodiment of FIG. 1 in an operating state;
FIG. 3 is an enlarged view of the flanging reamer head of FIG. 1;
FIG. 4 is an enlarged view at A in FIG. 2;
FIG. 5 is an enlarged view of the retaining plate and backstop baffle of FIG. 1;
in the figure: 1-frame, 2-roller, 3-composite steel pipe, 31-base pipe, 32-inner pipe, 41-flanging reaming head, 411-inlet guide part, 412-reaming part, 413-flanging part, 414-flanging shaft shoulder, 415-flanging guide part, 416-first reaming part, 417-second reaming part, 42-hydraulic oil cylinder, 5-fixing plate, 51-fixing plate through hole, 6-backstop baffle and 61-baffle through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Herein, for convenience of description, the seamless steel pipe is defined as a base pipe, and the lining stainless steel pipe sleeved inside the base pipe is defined as an inner pipe. Use the utility model discloses a before the inside lining stainless steel composite steel pipe is with turn-ups reaming equipment, cup joint the inner tube inside the parent tube, the both ends of inner tube are good at the parent tube. The two ends of the base pipe are processed to be pressed with sealing surfaces, the roundness of the inner diameters of the two ends of the base pipe is ensured, preparation work is made for the sealing performance of the subsequent pipe expanding process, and flanging counter bores are processed on the two end surfaces of the base pipe.
As shown in fig. 1, the flanging and reaming equipment for the stainless steel lined composite steel pipe comprises a frame 1, wherein rollers 2 are arranged on the frame 1, the rollers 2 are formed into two conical parts symmetrically arranged along the central axis of the composite steel pipe 3 from two ends to the middle through reducing, the two conical parts form a bearing structure, the rollers 2 are used for supporting the composite steel pipe 3, the composite steel pipe 3 is erected on the two rollers 2, and the composite steel pipe 3 is horizontally arranged. The frame 1 is provided with two flanging hole-enlarging devices which are arranged oppositely, the two flanging hole-enlarging devices are respectively positioned at two ends of the composite steel pipe 3, and each flanging hole-enlarging device comprises a flanging hole-enlarging head 41 and a driving device for driving the flanging hole-enlarging head 41 to do reciprocating motion.
As shown in fig. 2, the central axis of the flanging and reaming head 41 coincides with the central axis of the composite steel pipe 3, and one end of the flanging and reaming head 41 corresponding to the composite steel pipe 3 can extend into the composite steel pipe 3 to ream and flange two end portions of the composite steel pipe 3. As shown in fig. 3, the burring reamer head 41 includes an inlet guide portion 411, a reamer portion 412, and a burring portion 413, which are sequentially disposed, wherein a burring shoulder 414 is formed at one end of the burring portion 413 connected to the reamer portion 412, a burring guide portion 415 is disposed between an outer circumferential surface of the reamer portion 412 and the burring shoulder 414, and the burring guide portion 415 is preferably a smoothly transiting arc. As shown in fig. 3 and 4, when the flanging reaming head 41 gradually extends into the composite steel pipe 3, the smooth transition arc can cause the edge of the inner pipe 32 to roll outwards along with the arc, so as to achieve the purpose of flanging. The inlet guide part 411 is in a frustum shape with a small front end diameter and a large rear end diameter, and the inlet guide part 411 can enable the flanging reaming head 41 to more easily extend into two ends of the composite steel pipe 3 when the central axis of the composite steel pipe 3 deviates from the central axis of the flanging reaming head 41. The reaming portion 412 is also frustum-shaped, and the gradually increasing diameter of the reaming portion 412 can gradually ream the inner tube during reaming, so that breakage is avoided. Preferably, the counterbore portion 412 includes a first counterbore portion 416 and a second counterbore portion 417, the first counterbore portion 416 being adjacent the entry guide portion 411, the second counterbore portion 417 being adjacent the cuff portion 413, and the taper of the first counterbore portion 416 being greater than the taper of the second counterbore portion 417, such that the cuff reamer head 41 is more easily separated from the clad steel pipe 3 after the cuff reaming is completed.
As shown in fig. 1 and 3, the driving device is preferably a hydraulic cylinder 42, a piston rod of the hydraulic cylinder 42 is detachably and fixedly connected with the flanging part 413, when the composite steel pipes with different calibers need to be reamed and flanged, the flanging and reaming heads 41 with different sizes are detached and replaced, and a cylinder body of the hydraulic cylinder 42 is connected to the frame 1.
In order to prevent the flanging and reaming head 41 from being separated from the end of the composite steel pipe 3 after flanging and reaming, two backstop baffles are arranged on the frame, baffle through holes are arranged on the thrust baffle, the aperture of each baffle through hole is smaller than the outer diameter of the composite steel pipe and larger than the outer diameter of the flanging part, and the baffle through holes can allow the flanging part to pass through but prevent the composite steel pipe from passing through. The thrust baffle can be directly fixed on the frame 1, and also can be fixed on the frame 1 through the mounting seat, and the thrust baffle can be dismantled fixed connection with the mounting seat, and when processing the composite steel pipes of different sizes, the thrust baffle in different apertures is changed. Preferably, the mounting seat is a fixing plate 5 with a through hole, as shown in fig. 2 and 5, two fixing plates 5 are arranged on the frame 1, a fixing plate through hole 51 is arranged on the fixing plate 5, the two fixing plates 5 are vertically arranged and are respectively located at two ends of the composite steel pipe 3, a backstop baffle 6 is arranged on one side of the fixing plate 5, the thrust baffle 6 can be arranged on the outer side of the fixing plate 5, preferably on the inner side of the fixing plate 5, and the aperture of the fixing plate through hole 51 is larger than that of the baffle through hole 61. When the flanging reaming head 41 is over-tightly matched with the composite steel pipe 3 after reaming the two ends of the composite steel pipe, the composite steel pipe 3 moves along with the flanging reaming head 41, and the stopping baffle 6 can enable the composite steel pipe 3 to be separated from the flanging reaming head 41.
As shown in fig. 2 and 4, during specific production, the composite steel pipe 3 to be processed is erected on the roller 2, the position of the composite steel pipe 3 is adjusted to center the composite steel pipe 3, the hydraulic oil cylinders 42 on two sides are started, the piston rods of the hydraulic oil cylinders 42 drive the flanging reaming head 41 to simultaneously pass through the thrust baffle 6 and move towards the composite steel pipe 3, the inlet guide portion 411 and the reaming portion 412 extend into the composite steel pipe 3, and under the action of the first reaming portion 416 and the second reaming portion 417, two ends of the inner pipe 32 are reamed and tightly attached to the end portion of the base pipe 31. When the flange guide 415 moves to the end of the inner tube 32, the end edge of the inner tube 32 rolls outwards along with the arc of the flange guide 415, and the flange shoulder 414 presses the end edge of the rolled inner tube 32 into the flange counterbore of the base tube 31, thereby completing the flange operation. After the flanging and reaming are finished, the piston rod of the hydraulic oil pipe 42 drives the flanging and reaming head 41 to return to the initial position, and if the flanging and reaming head 41 is too tightly matched with the end of the composite steel pipe 3 and cannot be separated, the thrust baffle 6 blocks the composite steel pipe 3 to be separated along with the movement of the flanging and reaming head 41.
The end part of the composite steel pipe is curled, and in the subsequent pipe expanding process, the sealing plug extends into the composite steel pipe, so that the sealing performance of the sealing plug can be prevented from being influenced by scratching of the sealing ring. The end of the inner pipe is tightly attached to a pressing sealing surface processed by reaming and the inner wall of the base pipe, so that when the expansion pipe is pressurized, the inner pipe is prevented from generating roundness error and releasing pressure, and the expansion pipe cannot be pressed. Therefore, use the utility model discloses a compound steel pipe of inside lining stainless steel is with turn-ups reaming equipment can improve the sealing performance between sealed end cap of follow-up expand tube in-process and the inner tube.
The foregoing is considered as illustrative of the preferred embodiments of the invention and not in limitation thereof, and all changes which come within the spirit and scope of the invention are desired to be protected.
Claims (8)
1. The utility model provides a for compound steel pipe turn-ups reaming equipment of inside lining stainless steel, includes: the device comprises a rack, wherein rollers for supporting the composite steel pipe are arranged on the rack; it is characterized in that the preparation method is characterized in that,
the flanging reaming device comprises a flanging reaming head and a driving device for driving the flanging reaming head to reciprocate, the flanging reaming head comprises an inlet guide part, a reaming part and a flanging part which are sequentially arranged, the flanging part and one end connected with the reaming part form a flanging shaft shoulder, and the outer peripheral surface of the reaming part and the flanging shaft shoulder are provided with flanging guide parts.
2. The flanging hole expanding apparatus for lined stainless steel composite steel pipes as claimed in claim 1, wherein said flanging guide portion is a smooth transition arc.
3. The flanging and reaming device for lined stainless steel composite steel pipes according to claim 2, wherein the inlet guide part is frustum-shaped, and the reaming part is frustum-shaped.
4. The burring reaming apparatus for a lined stainless steel composite steel tube of claim 3, wherein the reamer part comprises a first reamer part adjacent to the entry guide and a second reamer part adjacent to the burring part, the first reamer part having a greater taper than the second reamer part.
5. The flanging hole expanding equipment for the lined stainless steel composite steel pipe as claimed in any one of claims 1 to 4, wherein two retaining baffles are arranged on the frame, the retaining baffles are provided with baffle through holes, and the aperture of the baffle through holes is smaller than the outer diameter of the composite steel pipe and larger than the outer diameter of the flanging part.
6. The flanging and reaming equipment for the stainless steel-lined composite steel pipe as claimed in claim 5, wherein a mounting seat is arranged on the frame, and the retaining baffle is detachably and fixedly connected to the mounting seat.
7. The flanging and reaming equipment for the lined stainless steel composite steel pipe as claimed in claim 6, wherein the mounting seat is a fixing plate, a fixing plate through hole is formed in the fixing plate, and the aperture of the fixing plate through hole is larger than that of the baffle through hole.
8. The flanging and reaming equipment for the stainless steel lined composite steel pipe as claimed in claim 1, wherein the driving device is a hydraulic oil cylinder, a piston rod of the hydraulic oil cylinder is detachably and fixedly connected with the flanging part, and a cylinder body of the hydraulic oil cylinder is connected to the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121352384.5U CN214813907U (en) | 2021-06-17 | 2021-06-17 | Flanging and reaming equipment for stainless steel lined composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121352384.5U CN214813907U (en) | 2021-06-17 | 2021-06-17 | Flanging and reaming equipment for stainless steel lined composite steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214813907U true CN214813907U (en) | 2021-11-23 |
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ID=78807835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121352384.5U Active CN214813907U (en) | 2021-06-17 | 2021-06-17 | Flanging and reaming equipment for stainless steel lined composite steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214813907U (en) |
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2021
- 2021-06-17 CN CN202121352384.5U patent/CN214813907U/en active Active
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