CN112901781A - Double-curved-surface expansion sealing device, forming system and rolling method - Google Patents

Double-curved-surface expansion sealing device, forming system and rolling method Download PDF

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Publication number
CN112901781A
CN112901781A CN202110290419.5A CN202110290419A CN112901781A CN 112901781 A CN112901781 A CN 112901781A CN 202110290419 A CN202110290419 A CN 202110290419A CN 112901781 A CN112901781 A CN 112901781A
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CN
China
Prior art keywords
expansion sealing
curved surface
plate
hyperboloid
expansion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110290419.5A
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Chinese (zh)
Inventor
宋帅林
崔鹏飞
连艳敏
冯鹏娟
刘洋
康会民
石国治
李明科
李春楠
雷文强
种大振
李鑫武
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Zhengzhou Boiler Co ltd
Original Assignee
Zhengzhou Boiler Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Boiler Co ltd filed Critical Zhengzhou Boiler Co ltd
Priority to CN202110290419.5A priority Critical patent/CN112901781A/en
Publication of CN112901781A publication Critical patent/CN112901781A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • 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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • 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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings

Abstract

The invention belongs to the technical field of fluidized bed boilers. A hyperboloid expansion sealing device is used for sealing an irregular membrane type wall and comprises a left curved surface expansion sealing part and a right curved surface expansion sealing part; the left curved surface expansion sealing part and the right curved surface expansion sealing part both comprise a straight line section and a bent section; the cross section of left curved surface inflation sealing and right curved surface inflation sealing all includes the U type groove that is located the middle part and sets up the straight curb plate in U type groove both sides, and the relative laminating setting of the U type groove notch of left curved surface inflation sealing and right curved surface inflation sealing. A hyperboloid expansion sealing device forming system and a rolling method of the hyperboloid expansion sealing device are also disclosed. The application has reasonable structural design, can be used for an irregular full-film type wall structure, greatly improves the pressing efficiency and quality, reduces the manufacturing cost and meets the production requirements of enterprises.

Description

Double-curved-surface expansion sealing device, forming system and rolling method
Technical Field
The invention belongs to the technical field of fluidized bed boilers, and particularly relates to a hyperboloid expansion sealing device, a forming system and a rolling method.
Background
Because the fully suspended hearth of the newly developed circulating fluidized bed boiler 22F0300-0 water cooling system adopts a full-film wall structure of five film water cooling walls, the expansion direction of the irregular film wall is multidimensional, the expansion direction is uncontrollable, and a sealing device with the controllable conventional expansion direction cannot be adopted: i.e. a sealing plug.
Because the shape of the film wall of the hearth is irregular, a corresponding hyperboloid expansion sealing device needs to be designed, the shape of the hyperboloid expansion sealing device is irregular along with the shape of the film wall of the hearth, the bending radius of the hyperboloid expansion sealing device is R1700, R1300 and R305, the bending position and the length of a straight section of each hyperboloid expansion sealing device are different, and the left hyperboloid expansion sealing device and the right hyperboloid expansion sealing device are buckled for use, so that the hyperboloid expansion sealing devices are various, if a bending die is pressed on a press according to the conventional design, the size of the die is large, the variety is large, the manufacturing cost is high, the manufacturing period is long, and the requirement of the product.
Disclosure of Invention
The invention aims to solve the problems and the defects, and provides a hyperboloid expansion sealing device, a forming system and a rolling method, which have reasonable structural design, can be used for an irregular full-film wall structure, greatly improves the pressing efficiency and quality, reduces the manufacturing cost and meets the production requirements of enterprises.
In order to realize the purpose, the adopted technical scheme is as follows:
a hyperboloid expansion sealing device is used for sealing an irregular membrane type wall and comprises a left curved surface expansion sealing part and a right curved surface expansion sealing part which are correspondingly arranged in a buckling mode from left to right; left curved surface inflation sealing and right curved surface inflation sealing all include:
the straight line sections are correspondingly matched with the straight line parts of the irregular membrane type wall; and
the bending sections are correspondingly matched with the bending parts of the irregular membrane type wall;
the cross section of left side curved surface inflation sealing and right curved surface inflation sealing all is in including the U type groove that is located the middle part and setting the straight curb plate of U type groove both sides, just the relative laminating setting of U type groove notch of left side curved surface inflation sealing and right curved surface inflation sealing.
According to the hyperboloid expansion sealing device of the present invention, preferably, the left curved expansion sealing portion and the right curved expansion sealing portion are made of high chrome nickel heat-resistant austenitic stainless steel.
A double curved surface expansion sealing device forming system is used for producing and processing double curved surface expansion sealing devices and comprises a bending die pressing device and a plate rolling device; the bending die assembly includes:
the lower die is provided with a lower pressing groove matched and corresponding to the U-shaped groove;
the upper die is provided with an upper pressure head corresponding to the lower pressure groove; and
the press machine drives the lower die and the upper die to move relatively, and presses the straight plate into a straight expansion sealing plate with a U-shaped groove and a straight side plate;
the plate rolling device comprises:
a plate bending machine;
the two lower rollers are correspondingly arranged and arranged on the plate bending machine;
the upper roll is arranged at the upper part of the middle of the two lower rolls, and a lifting driving part for driving the upper roll to lift is arranged on the plate bending machine;
the upper roller jacket is assembled on the upper roller, and a first jacket groove corresponding to the U-shaped groove of the direct expansion sealing plate is formed in the circumferential end face of the upper roller jacket; and
the lower roll clamping sleeve is assembled on the lower roll, and a second clamping sleeve groove corresponding to the U-shaped groove of the straight expansion sealing plate is formed in the circumferential section of the lower roll clamping sleeve;
when the U-shaped grooves of the left curved surface expansion sealing part and the right curved surface expansion sealing part are bent inwards, an upper roller jacket is assembled on the upper roller; and when the U-shaped grooves of the left curved surface expansion sealing part and the right curved surface expansion sealing part are bent outwards, the lower roller clamping sleeves are assembled on the two lower rollers.
According to the hyperboloid expansion sealing device forming system of the present invention, preferably, the upper roller jacket and the lower roller jacket each include two semicircular tile-clamping jackets, and both ends of the two semi-tile-clamping jackets are fixed by bolts.
According to the hyperboloid expansion sealing device forming system of the present invention, preferably, the lower pressure groove bottom of the lower mold is provided with a mold unloading unit.
According to the hyperboloid expansion sealing device forming system, the die unloading unit is preferably a plurality of elastic unloading blocks distributed at the bottom of the lower pressure tank.
According to the molding system of the hyperboloid expansion sealing device, two positioning strips are preferably arranged on the upper end surface of the lower die, and the two positioning strips are correspondingly arranged on two sides of the lower pressing groove.
A rolling method of a double-curved-surface expansion sealing device utilizes the double-curved-surface expansion sealing device forming system to roll and form a left curved-surface expansion sealing part and a right curved-surface expansion sealing part, and specifically comprises the following steps:
assembling an upper die and a lower die on the press machine, and completing debugging;
selecting a plate to be processed according to the theoretical development length of the left curved surface expansion sealing part or the right curved surface expansion sealing part, correspondingly placing the plate to be processed on a pressing station of the lower die, starting a press machine, and pressing the plate to be processed into a straight expansion sealing plate;
determining the bending radius, the bending direction and the machining procedure of each section of the left curved surface expansion sealing part or the right curved surface expansion sealing part;
and adjusting the height of an upper roller of the plate rolling device according to the bending radius of the section to be processed, assembling an upper roller jacket on the upper roller or assembling a lower roller jacket on the lower roller according to the bending direction, and sequentially rolling and forming each bent section.
According to the rolling method of the double-curved-surface expansion sealing device, preferably, the length of the plate to be processed is 100 mm-300 mm longer than the theoretical expansion length of the left curved-surface expansion sealing part or the right curved-surface expansion sealing part.
The rolling method of the double-curved-surface expansion sealing device according to the invention preferably further comprises a bending radius check ruler, and measurement verification is carried out by using the bending radius check ruler during the rolling forming process of the bent section.
By adopting the technical scheme, the beneficial effects are as follows:
the method is characterized in that various forming processing technical schemes are repeatedly demonstrated, the shape characteristics, the size and the precision requirements of a workpiece are analyzed according to a product drawing, various possible technical schemes are provided on the basis of technological analysis, comprehensive comparison and analysis are performed on the aspects of product quality, production efficiency, difficulty in manufacturing a die, convenience in operation and the like, and the most reasonable technical scheme and the lowest manufacturing cost are selected.
This application can realize the shaping suppression to U type groove through crooked die assembly, can roll up the system to the straight expansion seal board that has U type groove through rolling up the board device, thereby the preparation of hyperboloid expansion seal device has been realized, effectual solved among the prior art to the fashioned technological problem of preparation of this structure, the production efficiency is greatly improved, the production cost is reduced, can satisfy not unidimensional, different radial press forming, the practicality is stronger, more help popularizing and applying.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the drawings are only for purposes of illustrating some embodiments of the invention and are not to be construed as limiting the invention to all embodiments thereof.
Fig. 1 is a schematic structural view of a hyperboloid expansion sealing device according to an embodiment of the present invention.
Fig. 2 is a schematic view of the structure in the direction of a-a in fig. 1.
Fig. 3 is a schematic structural diagram of direction B in fig. 1.
Fig. 4 is a side view of the structure of fig. 3.
FIG. 5 is a schematic cross-sectional view of a left or right curved expansion seal in accordance with an embodiment of the present invention.
Fig. 6 is a schematic structural view of an upper die and a lower die in a bending die assembly according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of an upper roller and an upper roller jacket of a sheet rolling device according to an embodiment of the present invention.
Fig. 8 is a left side view of the structure of fig. 7.
Fig. 9 is a schematic structural view of a lower roll and a lower roll jacket of the sheet rolling device according to the embodiment of the present invention.
Fig. 10 is a left side view of the structure of fig. 9.
Fig. 11 is a schematic view of an operating state of an upper roller jacket of the sheet rolling device according to the embodiment of the present invention.
Fig. 12 is a left side view of the structure of fig. 11.
Fig. 13 is a schematic view showing an operating state of a lower roll jacket of the sheet rolling device according to the embodiment of the present invention.
Fig. 14 is a left side view of the structure of fig. 13.
FIG. 15 is a schematic diagram showing the specific dimensions of the segments of one of the hyperboloid expansion seal devices.
Fig. 16 is a specific dimension schematic diagram of a U-shaped groove and a straight side plate of a hyperboloid expansion sealing device.
Number in the figure:
110 is a straight line segment, 120 is a bent segment, 130 is a right curved surface expansion sealing part, 140 is a left curved surface expansion sealing part, 141 is a U-shaped groove, and 142 is a straight side plate;
201 is a lower die, 202 is an upper die, 203 is a lower pressure groove, 204 is an upper pressure head, 205 is a positioning strip, and 206 is an elastic unloading block;
301 is an upper roller, 302 is a lower roller, 303 is an upper roller jacket, 304 is a lower roller jacket, 305 is a first jacket groove, 306 is a second jacket groove, and 307 is a bolt.
Detailed Description
Illustrative aspects of embodiments of the invention are described more fully hereinafter with reference to the accompanying drawings, in which specific embodiments of the invention are shown. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art.
In the description of the present invention, it should be understood that the terms "first" and "second" are used to describe various elements of the invention, and are not intended to limit any order, quantity, or importance, but rather are used to distinguish one element from another.
It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it is understood that intervening elements may be present therebetween; i.e., positional relationships encompassing both direct and indirect connections.
It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", and the like, are used only for indicating relative positional relationship, which is for convenience in describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object to be described is changed, the relative positional relationship may also be changed accordingly.
Referring to fig. 1 to 4, a hyperboloid expansion sealing device for sealing an irregular membrane wall includes a left curved expansion sealing portion 140 and a right curved expansion sealing portion 130 which are arranged in a left-right corresponding snap fit; the left curved surface expansion sealing part 140 and the right curved surface expansion sealing part 130 both comprise a straight line section 110 and a bent section 120, and the plurality of straight line sections 110 are correspondingly matched with the straight line part of the irregular membrane wall; the multiple bending sections 120 are matched and correspondingly arranged with the bending parts of the irregular membrane type wall; the cross section of the left curved surface expansion sealing part 140 and the cross section of the right curved surface expansion sealing part 130 both comprise a U-shaped groove 141 positioned in the middle and straight side plates 142 arranged on two sides of the U-shaped groove 141, and the notches of the U-shaped groove 141 of the left curved surface expansion sealing part 140 and the U-shaped groove 141 of the right curved surface expansion sealing part 130 are oppositely attached.
The left curved expansion sealing part 140 and the right curved expansion sealing part 130 are made of high chrome nickel heat-resistant austenitic stainless steel.
Referring to fig. 5-11, the present application further discloses a hyperboloid expansion sealing device forming system for producing and processing a hyperboloid expansion sealing device, which specifically includes a bending die assembly and a plate rolling assembly; the bending die assembly comprises a lower die 201, an upper die 202 and a press machine, wherein a lower pressing groove 203 corresponding to the U-shaped groove 141 in a matched mode is formed in the lower die 201; an upper pressure head 204 corresponding to the lower pressure groove 203 is arranged on the upper die 202; the press machine drives the lower die 201 and the upper die 202 to move relatively, and presses the straight plate into a straight expansion sealing plate with a U-shaped groove and straight side plates; the plate rolling device comprises a plate rolling machine, two correspondingly arranged lower rollers 302, an upper roller 301, an upper roller clamping sleeve 304 and a lower roller clamping sleeve 305, wherein the lower roller 302 is arranged on the plate rolling machine; the upper roller 301 is arranged at the upper part of the middle of the two lower rollers 302, and the plate bending machine is provided with a lifting driving part for driving the upper roller 301 to lift; an upper roller jacket 303 is assembled on the upper roller 301, and a first jacket groove 305 corresponding to the U-shaped groove of the straight expansion sealing plate is formed in the circumferential end face of the upper roller jacket 303; a lower roller clamping sleeve 304 is assembled on the lower roller 302, and a second clamping sleeve groove 306 corresponding to the U-shaped groove 141 of the straight expansion sealing plate is formed in the circumferential section of the lower roller clamping sleeve 304; when the U-shaped grooves 141 of the left curved expansion sealing part 140 and the right curved expansion sealing part 130 are bent inwards, the upper roller 301 is provided with an upper roller jacket 303; when the U-shaped grooves 141 of the left and right curved expansion seals 140 and 130 are bent outward, the lower rollers 302 are fitted with the lower roller jackets 304. The upper roller jacket 303 and the lower roller jacket 304 in the above structure each include a semi-ring tile-clamping jacket having two semicircular shapes, and both ends of the semi-ring tile-clamping jacket are connected and fixed by a bolt 307.
The bottom of the lower pressing groove 203 of the lower die 201 is provided with a die unloading unit, which is a plurality of elastic unloading blocks 206, such as unloading rubber blocks or unloading rubber blocks, distributed at the bottom of the lower pressing groove. In order to position the plate to be processed conveniently, so as to ensure the pressing quality, two positioning strips 205 are arranged on the upper end surface of the lower die 201, and the two positioning strips 205 are correspondingly arranged on two sides of the lower pressing groove 203.
The application also discloses a rolling method of the double curved surface expansion sealing device, which utilizes the double curved surface expansion sealing device forming system to roll and form the left curved surface expansion sealing part 140 and the right curved surface expansion sealing part 130, and specifically comprises the following steps: assembling an upper die 202 and a lower die 201 on the press machine, and completing debugging; selecting a plate to be processed according to the theoretical development length of the left curved surface expansion sealing part 140 or the right curved surface expansion sealing part 130, correspondingly placing the plate to be processed on a pressing station of the lower die 201, starting a press machine, and pressing the plate to be processed into a straight expansion sealing plate; determining the bending radius, the bending direction and the processing procedure of each section of the left curved expansion sealing part 140 or the right curved expansion sealing part 130; the height of an upper roller 301 of the plate rolling device is adjusted according to the bending radius of a section to be processed, an upper roller jacket 303 is assembled on the upper roller 301 or a lower roller jacket 304 is assembled on a lower roller 302 according to the bending direction, and the rolling forming of each bent section 120 is sequentially carried out.
The length of the plate to be processed is 100 mm-300 mm longer than the theoretical development length of the left curved surface expansion sealing part 140 or the right curved surface expansion sealing part 130.
This application still includes bend radius inspection chi, at the book system forming process of curved segment 120, uses bend radius inspection chi measures the check-up.
In a specific application process, detailed description is given for specific working steps:
take as an example the manufacture of a hyperboloid expansion seal of the size shown in figures 12 and 13.
Reasonable upper and lower mould clearance value is selected in this application, and the mould is suitable for equipment: YH32-315 press, upper die and lower die adopt 45 # steel with higher strength and hardness, heat treatment requirement: HRC 40-45 quenching, simple and convenient processing of the upper die and the lower die, and good manufacturing manufacturability of the mould. After the pressed straight expansion sealing plate is spliced and welded, a straight expansion sealing plate workpiece with the theoretical spreading length is obtained, and then the straight expansion sealing plate workpiece is rolled on a 25mm plate rolling machine to form the double-curved-surface expansion sealing device.
The 25mm plate bending machine is in a three-roller symmetrical structure, and is convenient to operate. The diameter of the upper roll of the 25mm plate rolling machine is 345mm, the diameter of the lower roll is 280mm, and the distance between the two lower rolls is 440 mm. The upper roller is driven by a screw rod, a nut and a worm to vertically lift at the central symmetrical positions of the two lower rollers, and the two lower rollers are meshed with the lower roller gear through an output gear of a speed reducer to rotate so as to provide torque for rolling workpieces. At the same time, semi-ring tile-clamping type clamping sleeves which are matched with the cross section of the expansion sealing device and are arranged on the upper roller and the lower roller are manufactured, and are arranged on the upper roller or the lower roller by bolts. When the double-curved-surface expansion sealing device is bent inwards, a group of semi-ring tile-clamping type clamping sleeves are arranged on the upper roller, and when the double-curved-surface expansion sealing device is bent outwards, a group of semi-ring tile-clamping type clamping sleeves are arranged on the two lower rollers in parallel.
The semi-ring tile-clamping type roller is fixed on the upper roller or the lower roller by bolts, the bolts are convenient to connect and disassemble, and the end surface of the clamping ring is vertical to the axis of the roller. When the installation of the jacket is completed, the reserved straight edge cut end of the prepared straight expansion sealing plate is about 130mm, the splicing welding line contacted with the surfaces of the upper roll and the lower roll of the plate bending machine is polished to be flush, the straight expansion sealing plate which is pressed and spliced on the press machine is placed in the jacket groove, the straight expansion sealing plate can be introduced and the plate bending machine is started to bend the straight expansion sealing plate, and when the upper roll is pressed downwards and exceeds the yield limit of the material, the straight expansion sealing device generates plastic deformation. With the rotation of the 3 roll shafts, an arc line is formed, the outer layer fiber of the arc line is stretched, the inner layer is squeezed, the neutral layer is not changed, and the sealing device can be bent inwards or outwards to form the hyperboloid expansion sealing device according to the operation method of rolling the plate. Because the three rollers of the plate bending machine are symmetrical, the front and the back stress of the straight expansion sealing plate are relatively uniform in the bending forming process, and therefore the problems of resilience and precision of the double-curved-surface expansion sealing device can be well solved. In the process of starting the plate bending machine to roll the double-curved-surface expansion sealing device, the size of the bending radius of a workpiece drawing is checked by a sample plate at any time, the machine is stopped to take down the workpiece when the size requirement is met, and a wooden bending radius check ruler can be adopted to carry out corresponding bending radius detection.
The quality of the formed hyperboloid expansion sealing device completely meets the requirements of drawings and standards. After the bending device of the hyperboloid expansion sealing device is put into use, the production cost of products is reduced, and the updating of process equipment improves the manufacturing process level of enterprises.
While the preferred embodiments for carrying out the invention have been described in detail, it should be understood that they have been presented by way of example only, and not limitation as to the scope, applicability, or configuration of the invention in any way. The scope of the invention is defined by the appended claims and equivalents thereof. Many modifications may be made to the foregoing embodiments by those skilled in the art, which modifications are within the scope of the present invention.

Claims (10)

1. A hyperboloid expansion sealing device is used for sealing an irregular membrane type wall and is characterized by comprising a left curved surface expansion sealing part and a right curved surface expansion sealing part which are correspondingly buckled on the left and the right; left curved surface inflation sealing and right curved surface inflation sealing all include:
the straight line sections are correspondingly matched with the straight line parts of the irregular membrane type wall; and
the bending sections are correspondingly matched with the bending parts of the irregular membrane type wall;
the cross section of left side curved surface inflation sealing and right curved surface inflation sealing all is in including the U type groove that is located the middle part and setting the straight curb plate of U type groove both sides, just the relative laminating setting of U type groove notch of left side curved surface inflation sealing and right curved surface inflation sealing.
2. The hyperboloid expansion seal device of claim 1, wherein the left curved expansion seal portion and the right curved expansion seal portion are made of high chrome nickel heat resistant austenitic stainless steel.
3. A double-curved-surface expansion sealing device forming system for producing and processing the double-curved-surface expansion sealing device according to claim 1 or 2, which is characterized by comprising a bending die device and a plate rolling device; the bending die assembly includes:
the lower die is provided with a lower pressing groove matched and corresponding to the U-shaped groove;
the upper die is provided with an upper pressure head corresponding to the lower pressure groove; and
the press machine drives the lower die and the upper die to move relatively, and presses the straight plate into a straight expansion sealing plate with a U-shaped groove and a straight side plate;
the plate rolling device comprises:
a plate bending machine;
the two lower rollers are correspondingly arranged and arranged on the plate bending machine;
the upper roll is arranged at the upper part of the middle of the two lower rolls, and a lifting driving part for driving the upper roll to lift is arranged on the plate bending machine;
the upper roller jacket is assembled on the upper roller, and a first jacket groove corresponding to the U-shaped groove of the direct expansion sealing plate is formed in the circumferential end face of the upper roller jacket; and
the lower roll clamping sleeve is assembled on the lower roll, and a second clamping sleeve groove corresponding to the U-shaped groove of the straight expansion sealing plate is formed in the circumferential section of the lower roll clamping sleeve;
when the U-shaped grooves of the left curved surface expansion sealing part and the right curved surface expansion sealing part are bent inwards, an upper roller jacket is assembled on the upper roller; and when the U-shaped grooves of the left curved surface expansion sealing part and the right curved surface expansion sealing part are bent outwards, the lower roller clamping sleeves are assembled on the two lower rollers.
4. The hyperboloid expansion sealing device molding system of claim 3, wherein the upper roller jacket and the lower roller jacket each comprise two semicircular tile-clamping jackets, and two ends of the two semi-ring tile-clamping jackets are fixed by bolts.
5. The hyperboloid expansion seal device forming system according to claim 3 or 4, wherein a die unloading unit is provided to a bottom of the lower groove of the lower die.
6. The hyperboloid expansion seal device molding system of claim 5 wherein the die unloading unit is a plurality of resilient stripper blocks disposed at the bottom of the hold-down trough.
7. The hyperboloid expansion sealing device molding system of claim 3, wherein two positioning strips are arranged on the upper end surface of the lower mold, and the two positioning strips are correspondingly arranged on two sides of the lower pressing groove.
8. A rolling method of a hyperboloid expansion sealing device, which is characterized in that a hyperboloid expansion sealing device forming system of any one of claims 3 to 7 is used for rolling and forming a left curve expansion sealing part and a right curve expansion sealing part, and comprises the following steps:
assembling an upper die and a lower die on the press machine, and completing debugging;
selecting a plate to be processed according to the theoretical development length of the left curved surface expansion sealing part or the right curved surface expansion sealing part, correspondingly placing the plate to be processed on a pressing station of the lower die, starting a press machine, and pressing the plate to be processed into a straight expansion sealing plate;
determining the bending radius, the bending direction and the machining procedure of each section of the left curved surface expansion sealing part or the right curved surface expansion sealing part;
and adjusting the height of an upper roller of the plate rolling device according to the bending radius of the section to be processed, assembling an upper roller jacket on the upper roller or assembling a lower roller jacket on the lower roller according to the bending direction, and sequentially rolling and forming each bent section.
9. The rolling method of the hyperboloid expansion sealing device according to claim 8, wherein the length of the plate to be processed is 100mm to 300mm longer than the theoretical development length of the left curved surface expansion sealing part or the right curved surface expansion sealing part.
10. The method of rolling a hyperboloid expansion seal device according to claim 8, further comprising a bend radius check rule with which measurement verification is performed during roll forming of the curved section.
CN202110290419.5A 2021-03-18 2021-03-18 Double-curved-surface expansion sealing device, forming system and rolling method Pending CN112901781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110290419.5A CN112901781A (en) 2021-03-18 2021-03-18 Double-curved-surface expansion sealing device, forming system and rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110290419.5A CN112901781A (en) 2021-03-18 2021-03-18 Double-curved-surface expansion sealing device, forming system and rolling method

Publications (1)

Publication Number Publication Date
CN112901781A true CN112901781A (en) 2021-06-04

Family

ID=76105365

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110290419.5A Pending CN112901781A (en) 2021-03-18 2021-03-18 Double-curved-surface expansion sealing device, forming system and rolling method

Country Status (1)

Country Link
CN (1) CN112901781A (en)

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