CN111136137A - Pressure steel pipe stiffening ring rolling equipment and rolling process - Google Patents
Pressure steel pipe stiffening ring rolling equipment and rolling process Download PDFInfo
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- CN111136137A CN111136137A CN202010126650.6A CN202010126650A CN111136137A CN 111136137 A CN111136137 A CN 111136137A CN 202010126650 A CN202010126650 A CN 202010126650A CN 111136137 A CN111136137 A CN 111136137A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
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Abstract
The invention discloses a pressure steel pipe stiffening ring rolling device which comprises a box body, a driving roller driving component, a driven roller component and two groups of driving roller components, wherein the driving roller driving component is arranged on the box body; the passive roller assembly comprises a passive roller and a supporting body; the driving rollers and the driven rollers are arranged at intervals in an isosceles triangle shape; the upper ends of the driving roller and the driven roller are respectively provided with a roller; the upper end surface of the box body is provided with a horizontally arranged slide rail, and the supporting body is supported in the slide rail; the driving roller is driven by a worm gear; the further improvement lies in that: the driven roller assembly is driven by an oil cylinder; the roller comprises a lower disc, a middle disc and an upper disc which are detachably arranged on the upper end surfaces of the upper shaft shoulders of the driving roller and the driven roller assembly; the invention also discloses a pressure steel pipe stiffening ring rolling process adopting the pressure steel pipe stiffening ring rolling equipment. The invention does not need multi-stage speed reduction, has compact structure and good self-locking property; the rolling device is driven by hydraulic pressure, has large driving force and high rolling precision, and meets the rolling requirement of high-strength steel plates; the roller is convenient to replace; the pressure steel pipe stiffening ring meeting the use requirement can be rolled.
Description
Technical Field
The invention relates to the technical field of press forming processing, in particular to a pressure steel pipe stiffening ring rolling device and a rolling process.
Background
The hydropower station pipeline is pressure steel pipe, and general diameter is great, and the pipeline need set up a plurality of stiffening rings outward, and the manufacturing process of this kind of stiffening ring is generally cut into N arc boards with the steel sheet and carries out the spelling welding ring, and its shortcoming is mainly: many welding joints and large deformation, and the manufacturing speed is slow. Chinese patent publication No. CN 208613441U discloses a flange forming machine, which rolls a steel plate into a flange through two driving forming wheels, one and a driven forming wheel arranged on a frame, and the flange forming machine has the main defects that: the transmission system is in gear transmission, needs multi-stage speed reduction, is not compact in structure, is poor in self-locking performance, and cannot be self-locked when the driving forming wheel rotates reversely. The pressure steel pipe stiffening ring meeting the use requirement cannot be rolled by adopting the equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pressure steel pipe stiffening ring rolling device which does not need multi-stage speed reduction and has compact structure and good self-locking property, and a pressure steel pipe stiffening ring process which can roll the pressure steel pipe stiffening ring according with the use requirement.
The invention achieves the technical aim through the following technical scheme.
The pressure steel pipe stiffening ring coiling equipment comprises a box body, a driving roller driving component, a driven roller component and two groups of driving roller components; the drive roller assembly comprises a drive roller; the passive roller assembly comprises a passive roller and a supporting body; the central axes of the driving roller and the driven roller are vertically arranged, when viewed from top to bottom, the driven roller and the two driving rollers are arranged at intervals in an isosceles triangle, and the center of the driven roller is positioned on a vertical bisector of a connecting line of the centers of the two driving rollers; the driving roller is rotatably connected and installed on the box body; the upper end of the driving roller extending out of the box body is provided with a roller; the driven roller is rotatably connected and mounted on the supporting body; the upper end of the driven roller, which extends out of the supporting body, is provided with a roller; the upper end surface of the box body is provided with a horizontally arranged slide rail at one side of the connecting line of the centers of the two driving rollers, and the support body is supported in the slide rail and can move along the slide rail in the direction vertical to the connecting line of the centers of the two driving rollers; the driving roller driving component comprises a motor and a speed reducer; the motor and the speed reducer are arranged on the outer side of the box body, and the output end of the motor is connected with the input end of the speed reducer; the improvement is that: the driving roller driving assembly also comprises a worm shaft and a worm wheel which is coaxially sleeved and fixedly connected to the lower part of the driving roller; the worm shaft is horizontally arranged and is rotatably connected and installed in the box body, and the worm on the worm shaft is simultaneously meshed with the worm wheels on the two driving rollers to drive the driving rollers to rotate in the same direction and at the same rotating speed; one end of the worm shaft is connected with the output end of the speed reducer.
In the above configuration, the support body is provided in the case; an oil cylinder is arranged on the side wall of the box body, far away from the driving roller, of the supporting body; the central axis of the oil cylinder is horizontally arranged, the cylinder body of the oil cylinder is fixedly connected to the side wall of the box body, and the piston rod of the oil cylinder is connected with the supporting body; the supporting body can move along the slide rail in the direction vertical to the connecting line of the centers of the two driving rollers under the driving of the oil cylinder.
In the structure, the roller comprises a lower disc, a middle disc, an upper disc, an end cover and a plurality of first bolts, wherein the outer diameter of the middle disc is smaller than that of the lower disc and that of the upper disc; the upper parts of the driving roller and the driven roller are respectively provided with a shaft shoulder; on the driving roll, the lower disc, the middle disc, the upper disc and the end cover are sequentially coaxially sleeved at the end face of the driving roll above the upper shaft shoulder of the driving roll in a clearance fit manner; the first bolt penetrates through the end cover, the upper disc, the middle disc and the lower disc from top to bottom, and the end cover, the upper disc, the middle disc and the lower disc are fixedly connected to the upper end face of the upper shaft shoulder of the driving roller; on the driven roller, the lower disc, the middle disc, the upper disc and the end cover are sequentially sleeved on the shaft end of the driven roller above the upper end face of the shaft shoulder on the upper part of the driven roller in a coaxial clearance fit manner; the first bolt penetrates through the end cover, the upper disc, the middle disc and the lower disc from top to bottom, and the end cover, the upper disc, the middle disc and the lower disc are fixedly connected to the upper end face of the upper shaft shoulder of the driven roller.
In the structure, the middle disc comprises an inner disc and an outer disc made of superhard material; the outer disc is coaxially sleeved and fixedly connected to the inner disc.
In the structure, the upper end surface of the lower disc and the lower end surface of the upper disc are respectively provided with a superhard wear-resistant layer.
In the structure, the upper ends of the driving roller and the driven roller extend out of the upper end surface of the end cover, and the upper ends of the driving roller and the driven roller are respectively provided with a straight groove with an upward opening.
The pressure steel pipe stiffening ring rolling process adopting the pressure steel pipe stiffening ring rolling equipment has the improvement that: the method comprises the following steps:
1) blanking the batten according to the size of the pressure steel pipe stiffening ring;
2) checking whether the size of the strip plate obtained in the step 1) meets the design requirement;
3) strip plate rolling:
a. adjusting the distance between a driven roller and a driving roller of the pressure steel pipe stiffening ring rolling equipment according to the width of the batten under the step 1);
b. flatly placing the batten under the step 1) into a groove between rollers at the upper ends of a driven roller and a driving roller;
c. the driven roller moves to one side of the driving roller along the sliding rail in the direction vertical to the central connecting line of the two driving rollers under the driving of the oil cylinder to apply pressure to the strip plate; meanwhile, the two driving rollers are driven by the driving roller driving assembly to rotate so as to roll the strip plate;
d. repeating the steps b and c until the size requirement is basically met;
4) carrying out radian detection on the lath rolled in the step 3) by using a standard arc plate, and measuring the diameter or arc length of the lath rolled in the step 3);
5) putting the rolled batten on shaping equipment for shaping;
6) carrying out radian detection on the strip shaped in the step 5) by using a standard arc plate, and measuring the diameter or arc length of the strip shaped in the step 5);
7) if the reshaped ribbon board obtained in the step 5) does not meet the size requirement after the detection according to the step 6), continuously placing the ribbon board detected in the step 6) on reshaping equipment for reshaping until the size requirement is met;
8) assembling and welding the shaped batten meeting the size requirement to manufacture the pressure steel pipe stiffening ring;
9) and (5) detecting the manufactured pressure steel pipe stiffening.
Compared with the prior art, the invention has the following positive effects:
1. the driving roller driving assembly drives the driving roller by adopting worm and gear transmission, the transmission ratio of the worm and gear transmission is large, multi-stage speed reduction is not needed, the structure is compact, the self-locking performance is good, the driving forming wheel can be self-locked when rotating reversely, and the stability in use is obviously improved.
2. The side wall of the box body, far away from the driving rollers, of the support body is provided with the oil cylinder, and the support body can move in the direction perpendicular to the central connecting line of the two driving rollers along the sliding rail under the driving of the oil cylinder, namely the driven roller is driven by the oil cylinder, so that the oil cylinder can provide larger driving force, and the problems that when the existing rolling equipment is used for rolling a high-strength steel plate, the driving force of the driven roller is insufficient, and the high-strength steel plate cannot be rolled can be solved; secondly, hydraulic drive is adopted, and rolling precision is easy to control; and thirdly, the hydraulic drive is adopted, and the automatic control is easy to realize.
3. The roller on the upper part of the driving roller and the driven roller comprises a lower disc, a middle disc, an upper disc, an end cover and a plurality of first bolts, the lower disc, the middle disc, the upper disc and the end cover are sequentially sleeved at the shaft end above the upper end face of the shaft shoulder on the upper part of the driving roller or the driven roller in a coaxial clearance fit mode, the first bolts penetrate through the end cover from top to bottom, the upper disc, the middle disc and the lower disc from top to bottom, the end cover, the upper disc, the middle disc and the lower disc are fixedly connected onto the upper end face of the shaft shoulder on the upper part of the driving roller or the driven roller, and therefore the end cover, the upper disc, the middle disc and the lower disc can be rapidly taken down.
4. The middle disc comprises an inner disc and an outer disc made of superhard material, and the outer disc is coaxially sleeved and fixedly connected to the inner disc, so that the middle disc is small in abrasion and the service life of the roller is remarkably prolonged in the using process, particularly when a high-strength steel plate is coiled.
5. The upper end face of the lower disc and the lower end face of the upper disc are respectively provided with the superhard wear-resistant layer, so that the abrasion of the upper end face of the lower disc and the lower end face of the upper disc is small in the process of remarkably reducing the use, and the service life of the roller is remarkably prolonged.
6. The upper ends of the driving roller and the driven roller are respectively provided with a straight groove with an upward opening, so that the adjustment and debugging in the use process are facilitated.
7. The pressure steel pipe stiffening ring rolling equipment is adopted to roll the pressure steel pipe stiffening ring, and the pressure steel pipe stiffening ring meeting the use requirement is rolled.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 3.
Fig. 5 is a cross-sectional view taken along line D-D in fig. 3.
Fig. 6 is a sectional view taken along line a-a of fig. 1.
Fig. 7 is a sectional view taken along line B-B in fig. 1.
Fig. 8 is an enlarged view of part i of fig. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The pressure steel pipe stiffening ring rolling equipment shown in the attached drawing comprises a box body 1, a driving roller driving assembly, a driven roller assembly and two groups of driving roller assemblies; the drive roll assembly comprises a drive roll 4.1; the driven roller assembly comprises a driven roller 6.1 and a supporting body 6.2; the central axes of the driving roller 4.1 and the driven roller 6.1 are vertically arranged, when viewed from top to bottom, the driven roller 6.1 and the two driving rollers 4.1 are arranged at intervals in an isosceles triangle, and the center of the driven roller 6.1 is on the vertical bisector of the central connecting line of the two driving rollers 4.1.
The driving roller 4.1 is rotatably connected and installed on the box body 1, and in the embodiment, the driving roller 4.1 is supported on the box body 1 through a bearing; the upper end of the driving roller 4.1 extending out of the box body 1 is provided with a roller 7; the driven roller 6.1 is rotatably connected and mounted on a supporting body 6.2, in the embodiment, the supporting body 6.2 is arranged in the box body 1, and the driven roller 6.1 is supported on the supporting body 6.2 through a bearing; the upper end of the driven roller 6.1 extending out of the supporting body 6.2 is provided with a roller 7.
The roller 7 comprises a lower disc 7.1, a middle disc 7.2, an upper disc 7.3, an end cover 7.4 and a plurality of first bolts 7.5, wherein the outer diameter of the middle disc 7.2 is smaller than that of the lower disc 7.1 and the upper disc 7.3; the upper parts of the driving roll 4.1 and the driven roll 6.1 are respectively provided with a shaft shoulder; on a driving roller 4.1, a lower disc 7.1, a middle disc 7.2, an upper disc 7.3 and an end cover 7.4 are sequentially coaxially and in clearance fit with the shaft end of the driving roller 4.1 above the upper end face of a shaft shoulder on the driving roller 4.1, and the outer diameter of the middle disc 7.2 is smaller than the outer diameters of the lower disc 7.1 and the upper disc 7.3 to form a groove of a roller 7; corresponding key grooves are formed in the outer wall of the shaft end of the driving roller 4.1, the inner walls of the inner holes of the lower disc 7.1, the middle disc 7.2 and the upper disc 7.3, and a first flat key is arranged in the key grooves corresponding to the inner walls of the inner holes of the lower disc 7.1, the middle disc 7.2 and the upper disc 7.3 in the outer wall of the shaft end of the driving roller 4.1; a first bolt 7.5 penetrates through the end cover 7.4, the upper disc 7.3, the middle disc 7.2 and the lower disc 7.1 from top to bottom, and the end cover 7.4, the upper disc 7.3, the middle disc 7.2 and the lower disc 7.1 are fixedly connected to the upper end face of the upper shaft shoulder of the driving roll 4.1; on the driven roller 6.1, a lower disc 7.1, a middle disc 7.2, an upper disc 7.3 and an end cover 7.4 are sequentially sleeved at the shaft end of the driven roller 6.1 above the upper end face of the upper shaft shoulder of the driven roller 6.1 in a coaxial clearance fit manner, and the outer diameter of the middle disc 7.2 is smaller than the outer diameters of the lower disc 7.1 and the upper disc 7.3 to form a groove of the roller 7; corresponding key grooves are formed in the outer wall of the shaft end of the driven roller 6.1, the inner walls of the inner holes of the lower disc 7.1, the middle disc 7.2 and the upper disc 7.3, and a second flat key is arranged in the key grooves corresponding to the inner walls of the inner holes of the lower disc 7.1, the middle disc 7.2 and the upper disc 7.3 in the outer wall of the shaft end of the driven roller 6.1; the first bolt 7.5 penetrates through the end cover 7.4, the upper disc 7.3, the middle disc 7.2 and the lower disc 7.1 from top to bottom, and the end cover 7.4, the upper disc 7.3, the middle disc 7.2 and the lower disc 7.1 are fixedly connected to the upper end face of the upper shaft shoulder of the driven roller 6.1.
The intermediate disc 7.2 comprises an inner disc 7.2.1, an outer disc 7.2.2 made of superhard material; the outer disc 7.2.2 is coaxially sleeved and fixedly connected to the inner disc 7.2.1, and the upper end face of the lower disc 7.1 and the lower end face of the upper disc 7.3 are respectively provided with a superhard wear-resistant layer.
The upper end surface of the box body 1 is provided with a horizontally arranged slide rail 5 at one side of the central connecting line of the two driving rollers 4.1, in the embodiment, the upper end surface of the box body 1 is provided with two horizontally arranged guide rail strips 5.1 at one side of the central connecting line of the two driving rollers 4.1, the two guide rail strips 5.1 are arranged in parallel at intervals and perpendicular to the central connecting line of the driving rollers 4.1 and are fixedly connected to the upper end surface of the box body 1, and opposite grooves are arranged at opposite sides of the two guide rail strips 5.1 to form the horizontally arranged slide rail 5; the outer wall of the upper part of the supporting body 6.2 is provided with a bulge which is supported in the sliding rail 5, and the supporting body 6.2 can move along the sliding rail 5 in the direction vertical to the central connecting line of the two driving rollers 4.1; an oil cylinder 3 is arranged on the side wall of the box body 1, which is far away from one side of the driving roller 4.1, of the supporting body 6.2; the central axis of the oil cylinder 3 is horizontally arranged, the cylinder body of the oil cylinder 3 is fixedly connected to the side wall of the box body 1, and the piston rod of the oil cylinder 3 is connected with the supporting body 6.2; the supporting body 6.2 can move along the slide rail 5 in the direction vertical to the central connecting line of the two driving rollers 4.1 under the driving of the oil cylinder 3.
The driving roller driving assembly comprises a motor 2.1, a speed reducer 2.2, a worm shaft 2.3 and a worm wheel 2.4 which is coaxially sleeved and fixedly connected to the lower part of the driving roller 4.1; the motor 2.1 and the speed reducer 2.2 are arranged outside the box body 1 and are arranged on a bottom plate 2.6 outside the box body 1, and the output end of the motor 2.1 is connected with the input end of the speed reducer 2.2. The worm shaft 2.3 is horizontally arranged and is rotatably connected and installed in the box body 1 (in the embodiment, the worm shaft 2.3 is supported on the side wall of the box body 1 through a bearing), the worm on the worm shaft 2.3 is simultaneously meshed with the worm wheels 2.4 on the two driving rollers 4.1, and the driving rollers 4.1 can be driven to rotate in the same direction and at the same rotating speed; one end of the worm shaft 2.3 is connected with the output end of the speed reducer 2.2.
The upper ends of the driving roller 4.1 and the driven roller 6.1 extend out of the upper end surface of the end cover 7.4, and the upper ends of the driving roller 4.1 and the driven roller 6.1 are respectively provided with a straight groove with an upward opening.
When the device is used, the batten is horizontally placed and placed in a groove between idler wheels 7 at the upper ends of a driven roller 6.1 and a driving roller 4.1, the driven roller 6.1 moves towards one side of the driving roller 4.1 along a sliding rail 5 in a direction perpendicular to a central connecting line of the two driving rollers 4.1 under the driving of an oil cylinder 3 to apply pressure to the batten, and the two driving rollers 4.1 rotate under the driving of a driving roller driving assembly, so that the batten is formed by rolling.
The pressure steel pipe stiffening ring rolling process adopting the pressure steel pipe stiffening ring rolling equipment comprises the following steps:
1) blanking the batten according to the size of the pressure steel pipe stiffening ring;
2) checking whether the size of the strip plate obtained in the step 1) meets the design requirement;
3) strip plate rolling:
a. adjusting the distance between a passive roller 6.1 and a driving roller 4.1 of the pressure steel pipe stiffening ring rolling equipment according to the width of the batten under the step 1);
b. flatly placing the batten under the step 1) into a groove between a driven roller 6.1 and a roller 7 at the upper end of a driving roller 4.1;
c. the driven roller 6.1 is driven by the oil cylinder 3 to move towards one side of the driving roller 4.1 along the slide rail 5 in the direction vertical to the central connecting line of the two driving rollers 4.1 so as to apply pressure to the strip plate; meanwhile, the two driving rollers 4.1 rotate under the driving of the driving roller driving component to roll the strip;
d. repeating the steps b and c until the size requirement is basically met;
4) carrying out radian detection on the lath rolled in the step 3) by using a standard arc plate, and measuring the diameter or arc length of the lath rolled in the step 3);
5) putting the rolled batten on shaping equipment for shaping;
6) carrying out radian detection on the strip shaped in the step 5) by using a standard arc plate, and measuring the diameter or arc length of the strip shaped in the step 5);
7) if the reshaped ribbon board obtained in the step 5) does not meet the size requirement after the detection according to the step 6), continuously placing the ribbon board detected in the step 6) on reshaping equipment for reshaping until the size requirement is met;
8) assembling and welding the shaped batten meeting the size requirement to manufacture the pressure steel pipe stiffening ring;
9) and (5) detecting the manufactured pressure steel pipe stiffening.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms 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 the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A pressure steel pipe stiffening ring coiling device comprises a box body (1), a driving roller driving component, a driven roller component and two groups of driving roller components; the drive roll assembly comprises a drive roll (4.1); the passive roller assembly comprises a passive roller (6.1) and a supporting body (6.2); the central axes of the driving roller (4.1) and the driven roller (6.1) are vertically arranged, when viewed from top to bottom, the driven roller (6.1) and the two driving rollers (4.1) are arranged at intervals in an isosceles triangle, and the center of the driven roller (6.1) is positioned on a vertical bisector of a connecting line of the centers of the two driving rollers (4.1); the driving roller (4.1) is rotatably connected and installed on the box body (1); the upper end of the driving roller (4.1) extending out of the box body (1) is provided with a roller (7); the driven roller (6.1) is rotatably connected and mounted on the supporting body (6.2); the upper end of the driven roller (6.1) extending out of the supporting body (6.2) is provided with a roller (7); a horizontally arranged sliding rail (5) is arranged on one side of the central connecting line of the two driving rollers (4.1) on the upper end surface of the box body (1), and the supporting body (6.2) is supported in the sliding rail (5) and can move along the sliding rail (5) in the direction vertical to the central connecting line of the two driving rollers (4.1); the driving roller driving component comprises a motor (2.1) and a speed reducer (2.2); the motor (2.1) and the speed reducer (2.2) are arranged on the outer side of the box body (1), and the output end of the motor (2.1) is connected with the input end of the speed reducer (2.2); the method is characterized in that: the driving roller driving assembly also comprises a worm shaft (2.3) and a worm wheel (2.4) which is coaxially sleeved and fixedly connected to the lower part of the driving roller (4.1); the worm shaft (2.3) is horizontally arranged and is rotatably connected and installed in the box body (1), the worm on the worm shaft (2.3) is simultaneously meshed with the worm wheels (2.4) on the two driving rollers (4.1), and the driving rollers (4.1) can be driven to rotate in the same direction and at the same rotating speed; one end of the worm shaft (2.3) is connected with the output end of the speed reducer (2.2).
2. The apparatus for rolling a stiffener ring for a penstock as claimed in claim 1, wherein: the supporting body (6.2) is arranged in the box body (1); an oil cylinder (3) is arranged on the side wall of the box body (1) on one side of the support body (6.2) far away from the driving roller (4.1); the central axis of the oil cylinder (3) is horizontally arranged, the cylinder body of the oil cylinder (3) is fixedly connected to the side wall of the box body (1), and the piston rod of the oil cylinder (3) is connected with the supporting body (6.2); the supporting body (6.2) can move along the sliding rail (5) in the direction vertical to the central connecting line of the two driving rollers (4.1) under the driving of the oil cylinder (3).
3. The apparatus for rolling a stiffener ring for a penstock as claimed in claim 2, wherein: the roller (7) comprises a lower disc (7.1), a middle disc (7.2), an upper disc (7.3), an end cover (7.4) and a plurality of first bolts (7.5), wherein the outer diameter of the middle disc (7.2) is smaller than that of the lower disc (7.1) and that of the upper disc (7.3); the upper parts of the driving roller (4.1) and the driven roller (6.1) are respectively provided with a shaft shoulder; on the driving roller (4.1), the lower disc (7.1), the middle disc (7.2), the upper disc (7.3) and the end cover (7.4) are sequentially coaxially sleeved at the shaft end of the driving roller (4.1) above the upper end face of the upper shaft shoulder of the driving roller (4.1) in a clearance fit manner; the first bolt (7.5) penetrates through the end cover (7.4), the upper disc (7.3), the middle disc (7.2) and the lower disc (7.1) from top to bottom, and the end cover (7.4), the upper disc (7.3), the middle disc (7.2) and the lower disc (7.1) are fixedly connected to the upper end face of the upper shaft shoulder of the driving roll (4.1); on the driven roller (6.1), the lower disc (7.1), the middle disc (7.2), the upper disc (7.3) and the end cover (7.4) are sequentially sleeved on the shaft end of the driven roller (6.1) above the upper end face of the upper shaft shoulder of the driven roller (6.1) in a coaxial clearance fit manner; the first bolt (7.5) penetrates through the end cover (7.4), the upper disc (7.3), the middle disc (7.2) and the lower disc (7.1) from top to bottom, and the end cover (7.4), the upper disc (7.3), the middle disc (7.2) and the lower disc (7.1) are fixedly connected to the upper end face of the upper shaft shoulder of the driven roller (6.1).
4. The apparatus for rolling a stiffener ring for a penstock as claimed in claim 3, wherein: the intermediate disc (7.2) comprises an inner disc (7.2.1), an outer disc (7.2.2) made of superhard material; the outer disc (7.2.2) is coaxially sleeved and fixedly connected to the inner disc (7.2.1).
5. The apparatus for rolling a stiffener ring for a penstock as claimed in claim 4, wherein: the upper end surface of the lower disc (7.1) and the lower end surface of the upper disc (7.3) are respectively provided with a superhard wear-resistant layer.
6. The apparatus for rolling a stiffener ring for a penstock as claimed in claim 5, wherein: the upper ends of the driving roller (4.1) and the driven roller (6.1) extend out of the upper end face of the end cover (7.4), and the upper ends of the driving roller (4.1) and the driven roller (6.1) are respectively provided with a straight groove with an upward opening.
7. The pressure steel pipe stiffening ring rolling process of the pressure steel pipe stiffening ring rolling equipment as claimed in claim 1-6 is characterized in that: the method comprises the following steps:
1) blanking the batten according to the size of the pressure steel pipe stiffening ring;
2) checking whether the size of the strip plate obtained in the step 1) meets the design requirement;
3) strip plate rolling:
a. adjusting the distance between a passive roller (6.1) and a driving roller (4.1) of the pressure steel pipe stiffening ring rolling equipment according to the width of the batten under the step 1);
b. flatly placing the batten under the step 1) and placing the batten into a groove between a driven roller (6.1) and a roller (7) at the upper end of a driving roller (4.1);
c. the driven roller (6.1) is driven by the oil cylinder (3) to move towards one side of the driving roller (4.1) along the sliding rail (5) in the direction vertical to the central connecting line of the two driving rollers (4.1) so as to apply pressure to the strip plate; meanwhile, the two driving rollers (4.1) are driven by the driving roller driving assembly to rotate so as to roll the strip;
d. repeating the steps b and c until the size requirement is basically met;
4) carrying out radian detection on the lath rolled in the step 3) by using a standard arc plate, and measuring the diameter or arc length of the lath rolled in the step 3);
5) putting the rolled batten on shaping equipment for shaping;
6) carrying out radian detection on the strip shaped in the step 5) by using a standard arc plate, and measuring the diameter or arc length of the strip shaped in the step 5);
7) if the reshaped ribbon board obtained in the step 5) does not meet the size requirement after the detection according to the step 6), continuously placing the ribbon board detected in the step 6) on reshaping equipment for reshaping until the size requirement is met;
8) assembling and welding the shaped batten meeting the size requirement to manufacture the pressure steel pipe stiffening ring;
9) and (5) detecting the manufactured pressure steel pipe stiffening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010126650.6A CN111136137A (en) | 2020-02-21 | 2020-02-21 | Pressure steel pipe stiffening ring rolling equipment and rolling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010126650.6A CN111136137A (en) | 2020-02-21 | 2020-02-21 | Pressure steel pipe stiffening ring rolling equipment and rolling process |
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| CN111136137A true CN111136137A (en) | 2020-05-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020904A (en) * | 2021-02-26 | 2021-06-25 | 临沂大学 | Method and equipment for manufacturing C-shaped inner-opening thin-wall metal annular part |
| CN113909804A (en) * | 2021-09-15 | 2022-01-11 | 中国水利水电第六工程局有限公司 | Construction method for manufacturing pressure steel pipe stiffening ring |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020904A (en) * | 2021-02-26 | 2021-06-25 | 临沂大学 | Method and equipment for manufacturing C-shaped inner-opening thin-wall metal annular part |
| CN113909804A (en) * | 2021-09-15 | 2022-01-11 | 中国水利水电第六工程局有限公司 | Construction method for manufacturing pressure steel pipe stiffening ring |
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