CN114406653B - Device for installing reinforcing ring in pressure container tank body - Google Patents
Device for installing reinforcing ring in pressure container tank body Download PDFInfo
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- CN114406653B CN114406653B CN202111643967.8A CN202111643967A CN114406653B CN 114406653 B CN114406653 B CN 114406653B CN 202111643967 A CN202111643967 A CN 202111643967A CN 114406653 B CN114406653 B CN 114406653B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The application discloses a device for installing a reinforcing ring in a pressure vessel tank body, which comprises: the walking system comprises a base and a walking mechanism arranged on the base; the support system comprises a stand column assembly rotatably arranged on the base and a cross arm assembly arranged on the stand column assembly in a lifting manner; the clamping system is arranged on the cross arm assembly and used for clamping the inner reinforcing ring; the driving system is used for providing driving force for the walking system, the supporting system and the clamping system; and the control system is arranged on the upright post assembly and is connected with the driving system to control the driving system. The device can greatly reduce the number of operators and labor intensity and improve the operation efficiency; meanwhile, the tank plate of the pressure container is prevented from being damaged by scraping the inner wall of the pressure container, and the assembly quality of the reinforcing ring in the pressure container is improved; the operation is simple and convenient, the manual experience is not needed to be excessively relied on, and the automation of the assembly of the inner reinforcing ring is realized.
Description
Technical Field
The application belongs to the technical field of pressure vessel tank body assembly, and particularly relates to a device for installing a reinforcing ring in a pressure vessel tank body.
Background
The movable pressure vessel such as the intermodal tank box is generally internally provided with a plurality of inner reinforcing rings, such as I-shaped inner reinforcing rings, which are generally connected by a vertical tank plate, and the I-shaped inner reinforcing rings are required to be closely adhered to the inner surface circumference of the tank plate of the pressure vessel during assembly. The traditional inner reinforcing ring is lifted into the tank by manpower, positioning and clamping are completed by adopting manpower and auxiliary tools, and when the inner reinforcing ring moves to an assembling position in the tank, the inner reinforcing ring is inclined by a certain angle to avoid scratching the tank plate due to the fact that the inner diameter of the inner reinforcing ring is equivalent to that of the tank, but the manual assembling method needs 2-3 people to cooperatively operate, so that the operation number is more, the operation efficiency is low, the labor intensity is high, the size of the assembling position is difficult to accurately control, and the inner reinforcing ring is easy to scratch the inner wall of the tank plate to damage the tank plate of the pressure container.
Disclosure of Invention
This application aims at least can solving to a certain extent and need manual operation when being used for the internal reinforcing ring equipment of pressure vessel jar, and not only the number of people of operation is many, the operating efficiency is low, intensity of labour is big, and the jar inboard wall is rubbed to the easy grazing moreover, damages pressure vessel jar technical problem of board. To this end, the present application provides a device for installing a reinforcing ring in a pressure vessel tank.
An apparatus for installing a reinforcing ring in a pressure vessel tank body provided in an embodiment of the present application, the apparatus for installing a reinforcing ring in a pressure vessel tank body includes:
the walking system comprises a base and a walking mechanism arranged on the base;
the support system comprises a stand column assembly rotatably arranged on the base and a cross arm assembly arranged on the stand column assembly in a lifting manner;
the clamping system is arranged on the cross arm assembly and used for clamping the inner reinforcing ring;
a drive system for providing a driving force for the running system, the support system and the clamping system; the method comprises the steps of,
the control system is arranged on the upright post assembly and connected with the driving system to control the driving system;
the clamping system comprises:
a clamp bracket (310) disposed on the cross arm assembly;
at least two clamping rollers (320) arranged on the clamping bracket (310) through a first sliding pallet group (330);
at least two tensioning rollers (340) arranged on the clamping bracket (310) through a second sliding supporting plate group (350);
a tightening lever (360), a fulcrum of the tightening lever (360) being provided on the clamping bracket (310); the method comprises the steps of,
two tightening inserted rods (370) which are telescopically arranged on the resistance arm of the tightening lever (360);
wherein the clamping roller (320) and the tensioning roller (340) are respectively used for contacting with the inner surface of the inner reinforcing ring so as to support and clamp the inner reinforcing ring; the inner reinforcing ring is provided with an opening, and the parts of the inner reinforcing ring adjacent to the opening are respectively provided with jacks;
the drive system further includes:
the clamping tensioning driving assembly (430) is arranged on the clamping bracket (310) and used for driving the first sliding supporting plate group (330) and the second sliding supporting plate group (350) to slide relative to the clamping bracket (310);
the tightening lever (360) driving assembly is arranged between the clamping bracket (310) and a power arm of the tightening lever (360) and is used for driving the tightening lever (360) to rotate around the fulcrum; the method comprises the steps of,
and the telescopic inserting rod driving assembly (450) is arranged on the tightening lever (360) and is used for driving the tightening inserting rod (370) to stretch and retract relative to the tightening lever (360).
In some embodiments, the travel system further comprises a travel rail; the driving system comprises a walking driving assembly, and the walking driving assembly is arranged on the base and used for driving the walking mechanism to walk on the walking guide rail.
In some embodiments, the support system comprises:
the upright post assembly is rotatably arranged on the base; and, a step of, in the first embodiment,
the cross arm assembly is arranged on the upright post assembly in a lifting manner;
the drive system includes:
the rotary driving assembly is arranged on the base and used for driving the upright post assembly to rotate relative to the base; and the lifting driving assembly is arranged on the upright post assembly and used for driving the cross arm assembly to lift relative to the upright post assembly.
In some embodiments, the crossbar assembly comprises:
the first end of the female cross arm is provided with a lifting slide rail or a guide wheel; and, a step of, in the first embodiment,
the child cross arm is slidably arranged on the parent cross arm;
the drive system includes:
the telescopic driving assembly is arranged on the cross arm assembly and used for driving the sub cross arm to slide and stretch relative to the main cross arm.
In some embodiments, the upright assembly is provided with a lifting slide way matched with the lifting slide rail or a guide wheel groove matched with the guide wheel.
In some embodiments, the first set of slip pallets comprises:
the first sliding supporting plate is slidably arranged on the clamping bracket;
the spring guide fixing column is provided with a fixed end arranged on the clamping bracket, and a free end is arranged in the first sliding supporting plate in a penetrating way;
and the supporting plate spring is sleeved on the spring guide fixing column, one end of the supporting plate spring is abutted to the fixed end, and the other end of the supporting plate spring is abutted to the first sliding supporting plate.
In some embodiments, the clamping system further comprises:
the turntable is arranged between the clamping bracket and the sub cross arm;
the drive system further includes:
and the turntable driving assembly is used for driving the turntable to rotate relative to the sub cross arm.
In some embodiments, the clamping system further comprises:
the push rod is arranged between the clamping bracket and the turntable and is rotationally connected with the clamping bracket;
the drive system further includes:
the push rod driving assembly is telescopically arranged between the clamping support and the turntable, and is rotationally connected with the clamping assembly.
The embodiment of the application has at least the following beneficial effects:
according to the device for installing the reinforcing ring in the pressure container tank body, the inner reinforcing ring is clamped through the clamping system, and the supporting system and the traveling system are further driven through the driving system, so that the inner reinforcing ring is aligned with the pressure container tank body and is sent into the pressure container for assembly, the inner reinforcing ring is not required to be manually lifted into the pressure container, the number of operators and the labor intensity are greatly reduced, and the operation efficiency is improved; meanwhile, the moving path and the mounting position of the inner reinforcing ring can be accurately controlled through the control system and the driving system, so that the tank plate of the pressure vessel is prevented from being damaged by scraping the inner wall of the pressure vessel in the process of assembling the inner reinforcing ring, and the assembling quality of the inner reinforcing ring of the pressure vessel is improved; in addition, the device is controlled through the operating system, the operation is simple and convenient, the manual experience is not needed to be excessively relied on, and the automation of the assembly of the inner reinforcing ring is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 illustrates a front view of an apparatus for installing a reinforcing ring in a pressure vessel tank in an embodiment of the present application;
FIG. 2 shows a right side view of the apparatus for installing a reinforcing ring within a pressure vessel tank of FIG. 1;
FIG. 3 is a view showing the clamping assembly of the apparatus for installing a reinforcing ring in a tank of a pressure vessel of FIG. 2 in a state where the inner reinforcing ring is tightened;
fig. 4 shows a schematic view of the arrangement for mounting the reinforcing ring in the pressure vessel tank of fig. 1 in relation to the pressure vessel tank when the inner reinforcing ring is assembled.
Reference numerals:
100. a walking system; 110. a base; 120. a walking mechanism; 130. a walking guide rail; 200. a support system; 210. a column assembly; 220. a cross arm assembly; 310. a clamping bracket; 320. clamping rollers; 321. clamping a roller shaft; 330. a first sliding pallet set; 331. a first sliding pallet; 332. the spring guides the fixed column; 333. a pallet spring; 340. tensioning rollers; 341. tensioning the roller shaft; 342. a fixed fulcrum; 350. the second sliding supporting plate group; 360. the lever is contracted; 361. a pin shaft; 362. a chute; 370. the inserting rod is contracted; 380. a turntable; 381. a cross bracket; 390. a push rod; 410. a swing drive assembly; 420. a lifting driving assembly; 430. clamping the tensioning driving component; 440. a tightening lever driving assembly; 450. a telescopic plunger drive assembly; 460. a push rod drive assembly.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
The present application is described below with reference to specific embodiments in conjunction with the accompanying drawings:
as shown in fig. 1 to 4, the device for installing the reinforcing ring in the pressure vessel tank body according to an embodiment of the present application includes a traveling system 100, a supporting system 200, a clamping system, a driving system, and a control system.
As shown in fig. 1, the traveling system 100 includes a base 110 and a traveling mechanism 120 disposed on the base 110. The base 110 provides supporting force for the device for installing the reinforcing ring in the pressure vessel tank body and balances the gravity of other systems so that the device for installing the reinforcing ring in the pressure vessel tank body can work stably and balancedly, and generally, the shape of the base 110 can be adjusted according to the requirement, for example, the base can be cuboid or disc-shaped; the running mechanism 120 provides a moving and running function for the device for installing the reinforcing ring in the pressure container tank body, and optionally, the running mechanism 120 is a group of rollers, and the rollers are arranged on the bottom surface of the base 110, so that the base 110 can be moved and run, and the whole device for installing the reinforcing ring in the pressure container tank body can be moved.
Referring to fig. 2, the support system 200 includes a column assembly 210 rotatably disposed on the base 110 and a cross arm assembly 220 liftably disposed on the column assembly 210. The column assembly 210 provides a longitudinally movable space for the bridge arm assembly 220, thereby enabling the bridge arm assembly 220 to be adjusted in height relative to the base 110 to accommodate the height of the pressure vessel tank.
With continued reference to fig. 1 and 4, a clamping system is provided on the cross arm assembly 220 for clamping the inner stiffening ring. The clamping system clamps the inner stiffener ring, through the support and height adjustment of the cross arm assembly 220 and the column assembly 210, to enable the inner stiffener ring to be aligned with the pressure vessel tank for accurate feeding into the pressure vessel tank through the travel system 100.
Further, the driving system is used for providing driving force for the walking system 100, the supporting system 200 and the clamping system, the control system is arranged on the upright post assembly 210, and is connected with the driving system to control the driving system, and the driving system is controlled by the control system, so that the device for installing the reinforcing ring in the pressure container tank body can automatically work, clamp the inner reinforcing ring and send the reinforcing ring into the pressure container tank body for installation and fixation.
In the device for installing the reinforcing ring in the pressure container tank body, the inner reinforcing ring is clamped by the clamping system, and the supporting system 200 and the traveling system 100 are further driven by the driving system, so that the inner reinforcing ring is aligned with the pressure container tank body and is sent into the pressure container for assembly, the inner reinforcing ring is not required to be manually lifted into the pressure container, the number of operators and the labor intensity are greatly reduced, and the operation efficiency is improved; meanwhile, the moving path and the mounting position of the inner reinforcing ring can be accurately controlled through the control system and the driving system, so that the tank plate of the pressure vessel is prevented from being damaged by scraping the inner wall of the pressure vessel in the process of assembling the inner reinforcing ring, and the assembling quality of the inner reinforcing ring of the pressure vessel is improved; in addition, the device is controlled through the operating system, the operation is simple and convenient, the manual experience is not needed to be excessively relied on, and the automation of the assembly of the inner reinforcing ring is realized.
As an alternative embodiment, the running system 100 further comprises a running rail 130; correspondingly, the drive system comprises a travel drive assembly, which is arranged on the base 110 for driving the travel mechanism 120 to travel on the travel rail 130. The traveling guide 130 may be disposed in the pressure vessel tank and extend outward from the pressure vessel tank to provide rail support and limit for the traveling mechanism 120 of the traveling system 100 to travel in the pressure vessel tank. In this embodiment, the track gauge of the walking rail 130 is 3000mm and the length is 8M, for example, a 38KG/M rail may be used, and a safety hook is provided on the walking rail 130 to ensure the safety of the apparatus. In other embodiments, the running rail 130 may be adaptively adjusted according to the arrangement mode of the running mechanism 120 and the size of the pressure vessel tank, so that the running mechanism 120 can smoothly run into the pressure vessel tank through the running rail 130.
In the above embodiment, the driving system is used for driving the traveling driving component of the traveling system 100 to be a motor, preferably a variable frequency motor, and the device assembled by the reinforcing ring in the pressure vessel tank body can be conveniently and accurately positioned at the stop position in the pressure vessel by electric driving, that is, by variable frequency speed regulation, so that the positioning and the assembly of the inner reinforcing ring are convenient.
As an alternative embodiment, as shown in fig. 1 and 2, the support system 200 includes a column assembly 210 and a cross arm assembly 220, the column assembly 210 being rotatably disposed on the base 110; the cross arm assembly 220 is liftably disposed on the column assembly 210. Correspondingly, the driving system further comprises a swing driving assembly 410 and a lifting driving assembly 420, wherein the swing driving assembly 410 is arranged on the base 110 and is used for driving the upright post assembly 210 to rotate relative to the base 110; the lifting driving assembly 420 is disposed on the upright assembly 210, and is used for driving the cross arm assembly 220 to lift relative to the upright assembly 210.
In this embodiment, the height and angle of the clamping system provided on the cross arm assembly 220 can be adjusted by the rotation of the column assembly 210 and the lifting of the cross arm assembly 220, so that the clamping inner reinforcing ring can be positioned with the tank body of the pressure vessel, and the inner reinforcing ring can be fixedly installed.
Alternatively, the upright post assembly 210 is arranged on the base 110 by adopting a single-row ball slewing bearing structure, the slewing driving assembly 410 is driven by a motor, and the rotation of the upright post assembly 210 on the base 110 is stable and reliable by electrically driving the upright post assembly 210 slewing bearing structure. Preferably, the rotary support structure is provided with a manually controllable locking structure, so that the column assembly 210 which rotates in place can be locked and fixed, and the column assembly 210 is prevented from being deviated when the inner reinforcing ring is fixedly installed in the pressure container tank body.
Optionally, the lifting driving assembly 420 adopts a mode of driving a two-stage worm gear reducer by a motor, and the two-stage worm gear reducer works through a chain wheel and chain pair to realize free lifting of the cross arm assembly 220. In the lifting driving assembly 420, preferably, a braking motor is adopted as a motor, and meanwhile, a worm gear reducer of the two-stage worm gear reducer also has strong self-locking property, so that the cross arm assembly 220 can be ensured to be stably self-locked at any position of the upright post assembly 210. It is further preferred that the lift drive assembly 420 also be provided with ratchet pawl means to secure the cross arm assembly 220 to the post assembly 210 in the event of an unexpected breakage of the chain for safety.
As an alternative embodiment, the control system is provided on the column assembly 210, preferably in the lower portion of the column assembly 210. The operating system can rotate synchronously with the upright post assembly 210, so that wiring between the control system and the driving system can be optimized, and control is convenient. Preferably, the control system comprises an operating platform and may further comprise a display panel to display the operating parameters and operating conditions of the control system and the drive system.
As an alternative embodiment, as shown in fig. 1, the cross arm assembly 220 includes a female cross arm and a male cross arm, where a lifting slide rail or guide wheel is provided at a first end of the female cross arm; the secondary cross arm is slidably arranged on the primary cross arm. Accordingly, the drive system includes a telescoping drive assembly disposed on the cross arm assembly 220 for driving the sliding telescoping of the child cross arm relative to the parent cross arm.
In this embodiment, the child cross arm can slide relative to the parent cross arm, that is, the position of the inner reinforcing ring clamped by the clamping system can be adjusted relative to the pressure container tank body by adjusting the length of the cross arm assembly 220, so that the position of the inner reinforcing ring can be automatically adjusted, and positioning and installation of the inner reinforcing ring are facilitated.
In this embodiment, optionally, the telescopic driving assembly adopts a mode of driving the worm gear reducer by adopting a motor, and the worm gear reducer works through a gear rack pair, so that the sliding telescopic function of the sub cross arm relative to the main cross arm is realized. Preferably, the motor of the telescopic driving assembly adopts an alternating current motor, and the motor supplies power for a variable frequency motor or a frequency converter, so that the turbine speed reducer can realize stepless speed regulation in a wider range through the motor, and the free telescopic function of the cross arm assembly 220 is realized.
As an alternative embodiment, the post assembly 210 is provided with a lifting slide that mates with a lifting slide rail or a guide wheel slot that mates with a guide wheel. Further preferably, the main cross arm and the sub cross arm are respectively provided with a telescopic sliding rail and a guide wheel which are matched with each other.
In the above embodiment, optionally, the lifting guide rail is set on the upright post assembly 210, the telescopic guide rail is set on the female cross arm, the lifting guide rail and the telescopic guide rail are all pi-shaped three-sided guide rails, accordingly, the guide wheels on the female cross arm and the guide wheels on the sub cross arm adopt the guide wheel structure with adjustable eccentric shafts, and the lifting of the cross arm assembly 220 and the telescopic guide rail and the telescopic guide wheels matched with the same can be ensured to obtain higher control precision relative to the telescopic guide wheels of the female cross arm, so that the control precision of the device for installing the reinforcing ring in the pressure vessel tank body is improved, the installation of the inner reinforcing ring is more accurate, and the tank body of the pressure vessel can be prevented from being scratched.
Preferably, the lifting slide rail, the telescopic slide rail and the guide wheels are all made of wear-resistant materials; it is further preferred that the guide wheel is provided with a filler neck to facilitate filling of the bearings of the guide wheel with grease to protect the guide wheel and its bearings.
As an alternative embodiment, as shown in fig. 1 and 2, the clamping system includes a clamping bracket 310, at least two clamping rollers 320, and at least two tensioning rollers 340, the clamping bracket 310 being disposed on a sub-crossbar; at least two clamping rollers 320 are disposed on the clamping bracket 310 through a first sliding pallet group 330; at least two tensioning rollers 340 are arranged on the clamping bracket 310 through a second sliding pallet set 350; wherein the clamping roller 320 and the tensioning roller 340 are respectively used for contacting with the inner surface of the inner reinforcing ring to support and clamp the inner reinforcing ring. Accordingly, the driving system further includes a clamping and tensioning driving assembly 430, where the clamping and tensioning driving assembly 430 is disposed on the clamping bracket 310 and is used for driving the first sliding pallet set 330 and the second sliding pallet set 350 to slide relative to the clamping bracket 310.
In this embodiment, the pinch roller 320 and the tension roller 340 form a structure with a circular outer periphery so that the inner surfaces of the inner reinforcing rings are in contact. When the clamping device is used for clamping the inner reinforcing ring, the clamping tensioning driving assembly 430 is used for driving the first sliding supporting plate 331 and the second sliding supporting plate, the distance between the first sliding supporting plate 331 and the second sliding supporting plate is adjusted, and then the relative positions of the clamping roller 320 and the tensioning roller 340 are adjusted to expand outwards, so that the clamping roller 320 and the tensioning roller 340 can be supported on the inner side of the inner reinforcing ring, and the clamping inner reinforcing ring is supported.
In the above embodiment, as shown in fig. 1, the clamping tensioning driving assembly 430 is a pneumatic driving structure, and includes a first pneumatic driving member and a second pneumatic driving member, where the first pneumatic driving member is used to drive the first sliding support plate 331 to slide relative to the clamping bracket 310, and the second pneumatic driving member is used to drive the second sliding support plate to slide relative to the clamping bracket 310.
It is further preferred in the above embodiment that the first and second sliding pallets 331 and 340 are further driven by the clamping and tensioning assembly after the inner reinforcing ring is positioned in the tank of the pressure vessel, so that the clamping roller 320 and the tensioning roller 340 are further expanded outwardly to press the inner reinforcing ring against the tank plate of the pressure vessel.
In the above embodiment, as shown in fig. 1 and 2, two clamping rollers 320 are respectively located at both sides of the first sliding tray 331, one or both of which is/are rotatable around the shaft, and the clamping rollers 320 are rotatably fastened around the clamping roller shaft 321 so as to be pressed against the inner side of the inner reinforcing ring; similarly, two tensioning rollers 340 are respectively located at two sides of the second sliding supporting plate, one or two of the tensioning rollers 340 can rotate around the shaft, the tensioning rollers 340 are fastened around the shaft in a rotating manner so as to be tightly pressed on the inner side of the inner reinforcing ring, and the inner reinforcing ring can be clamped and kept vertical and perpendicular to the axial direction of the tank body through the combined action of the clamping rollers 320 and the tensioning rollers 340. Alternatively, as shown in fig. 2, the tension roller shaft 341 is fixed to the second slip pallet set 350 by a connecting member and a fixed fulcrum 342.
Preferably, clamping grooves are formed in the peripheries of the clamping roller 320 and the tensioning roller 340, and the clamping grooves are used for accommodating the inner reinforcing rings. In the above embodiment, the clamping roller 320 and the tensioning roller 340 may be copper rollers, the outer diameter of the rollers is 160 mm-240 mm, the depth of the clamping groove is 70 mm-110 mm, and the fastening travel of the rollers is 30 mm-50 mm, wherein the fastening travel of the rollers refers to the moving distance of the rollers relative to the clamping bracket 310. In other embodiments, the clamping roller 320 and the tensioning roller 340 may be made of other rigid materials, and the outer diameter, the depth of the clamping groove, and the fastening travel of the roller may be adaptively adjusted according to the structural parameters of the inner reinforcing ring.
In this application, the inner reinforcement loop is optionally a type I reinforcement loop. In order to facilitate the adjustment of the diameter of the inner reinforcing ring, an opening is arranged on the inner reinforcing ring, and the parts of the inner reinforcing ring adjacent to the opening are respectively provided with insertion holes. Alternatively, the aperture of the jack is 8 mm-16 mm, the distance between the jack and the end face of the opening is 100 mm-160 mm, and preferably, the jack is positioned at the center of the radial width of the I-shaped inner reinforcing ring. In other embodiments, the hole diameter of the jack and the distance between the jack and the opening end face can be adjusted according to actual needs, and the above parameter ranges are only optional ranges of the present embodiment.
As an alternative embodiment, the clamping system further includes a tightening lever 360 and two tightening levers 370, the fulcrum of the tightening lever 360 being disposed on the clamping bracket 310; the two tightening inserted rods 370 are telescopically arranged on the resistance arm of the tightening lever 360; accordingly, the driving system further comprises a tightening lever driving assembly 440 and a telescopic inserting rod driving assembly 450, wherein the tightening lever driving assembly 440 is arranged between the clamping bracket 310 and the power arm of the tightening lever 360 and is used for driving the tightening lever 360 to rotate around a fulcrum; the telescopic plunger driving assembly 450 is provided on the tightening lever 360 for driving the tightening plunger 370 to be telescopic with respect to the tightening lever 360.
Optionally, two tightening levers 360 are respectively provided with a sliding groove 362, and the two sliding grooves 362 define a movement track through a pin shaft 361 connected together.
In this embodiment, the telescoping plunger drive assembly 450 drives the telescoping plunger to extend into the receptacle adjacent the opening of the inner stiffener ring, and the tightening lever drive assembly 440 drives the power arm of the tightening lever 360 in a motion that moves the telescoping plunger on the resistance arm of the tightening lever 360 in a counter-or counter-motion. When the two telescopic inserted bars move in opposite directions, the opening of the inner reinforcing ring can be reduced, namely the outer diameter of the inner reinforcing ring is reduced so that the inner reinforcing ring can be smoothly fed into the tank body of the pressure container, and the tank plate of the pressure container is prevented from being scratched; when the two telescopic inserted bars move oppositely, the opening of the inner reinforcing ring can be enlarged, namely the outer diameter of the inner reinforcing ring is enlarged to be attached to the tank plate of the pressure container, so that the inner reinforcing ring is assembled in place.
In this embodiment, the optional retraction lever drive assembly 440 and the retraction plunger drive assembly 450 are pneumatically driven structures. In other embodiments, the compression lever drive assembly 440 and the telescoping plunger drive assembly 450 may be other drive configurations, such as a hydraulic drive configuration.
In the above embodiment, in order to match the telescopic inserting rod with the insertion hole, the outer diameter of the telescopic inserting rod is 7mm to 15mm, that is, the outer diameter of the telescopic inserting rod is 1mm smaller than the insertion hole diameter of the I-shaped reinforcing ring. In other embodiments, the outer diameter of the telescopic inserted link is preferably slightly smaller than the aperture of the jack, so that the telescopic inserted link can be smoothly inserted into the jack, and the relative position of the telescopic inserted link after being inserted into the jack can be fixed, thereby facilitating the contraction and expansion of the inner reinforcing ring.
As an alternative embodiment, as shown in fig. 1 and 2, the first sliding tray set 330 includes a first sliding tray 331, a spring guide fixing column 332, and a tray spring 333, and the first sliding tray 331 is slidably disposed on the clamping bracket 310; the fixed end of the spring guide fixing column 332 is arranged on the clamping bracket 310, and the free end is penetrated in the first sliding supporting plate 331; the pallet spring 333 is sleeved on the spring guiding fixing column 332, one end of the pallet spring is abutted against the fixed end, and the other end of the pallet spring is abutted against the first sliding pallet 331.
In this embodiment, the pallet spring 333 is extended and contracted along the spring guide fixing post 332, and the pallet spring 333 is used for the pre-supporting force of the inner reinforcement ring loaded into the clamping roller 320 and the tensioning roller 340, so that the position of the inner reinforcement ring on the clamping bracket 310 is relatively fixed, and the position of the inner reinforcement ring is conveniently adjusted so that the telescopic inserting rod is aligned with the insertion hole of the inner reinforcement ring and inserted therein. In this embodiment, the compression pressure of the blade spring 333 is 5 kg, and the compression stroke is 100mm. In other embodiments, the compression parameters of the blade springs 333 may be adjusted accordingly based on the weight of the inner stiffening ring.
As an alternative embodiment, the clamping system further comprises a turntable 380, the turntable 380 being arranged between the clamping bracket 310 and the sub-crossbar; correspondingly, the driving system further comprises a turntable 380 driving assembly for driving the turntable 380 to rotate relative to the sub cross arm.
In this embodiment, rotation of the turntable 380 rotates the clamping bracket 310, thereby rotating the inner stiffener ring within ±180 degrees to adjust the interface of the inner stiffener ring to a specified angular position. In addition, when the inner reinforcing ring is positioned on the tank plate of the pressure container and the telescopic inserted rod is withdrawn from the jack, the clamping bracket 310 can be driven to rotate by the rotation of the turntable 380, the first sliding supporting plate set 330 and the second sliding supporting plate set 350 are driven to slide back to back by the clamping tensioning driving assembly 430, so that the clamping roller 320 and the tensioning roller 340 are outwards expanded, and the inner side of the inner reinforcing ring is pressed and rolled under the driving of the turntable 380, so that the inner reinforcing ring is more closely attached to the tank plate of the pressure container.
In the above embodiment, preferably, the turntable 380 driving assembly is driven to rotate by a worm and gear rotating mechanism and a direct current motor, so as to drive the clamping system to rotate within a range of ±180 degrees, not only can make the reinforcing ring rotate to adjust the opening of the inner reinforcing ring to a designated position, but also can drive the clamping roller 320 and the tensioning roller to roll on the inner side of the inner reinforcing ring so as to press the inner reinforcing ring on the tank plate of the pressure container. Compared with the traditional manual assembly mode, the inner reinforcing ring can be closely attached to the tank plate of the pressure vessel, and the installation quality of the inner reinforcing ring is improved.
Further optionally, the clamping system further comprises a cross bracket 381 disposed between the turntable 380 and the sub-bridge. Correspondingly, the drive system further comprises a carriage drive assembly for driving the radial translation of the cross carriage 381 a distance relative to the sub-cross arm. The bracket driving assembly can drive the cross bracket 381 to translate in the radial direction relative to the sub-cross arm by a certain distance, for example, when the inner reinforcing ring passes through the tank body of the pressure vessel or when the sealing plate exists on the periphery, the clamping system can be adjusted up and down or left and right, for example, the clamping system can be adjusted up and down or left and right by 100mm, so that the inner reinforcing ring can smoothly pass through the inner cavity of the tank body, and meanwhile, the accurate position of the inner reinforcing ring can be finely adjusted during assembly positioning.
As an alternative embodiment, the clamping system further comprises a push rod 390, wherein the push rod 390 is arranged between the clamping bracket 310 and the turntable 380, and the push rod 390 is rotatably connected with the clamping bracket 310; accordingly, the drive system further includes a push rod drive assembly 460, the push rod drive assembly 460 being telescopically disposed between the clamp bracket 310 and the turntable 380, the push rod drive assembly 460 being rotatably coupled to the clamp assembly.
In this embodiment, the push rod driving assembly 460 preferably adopts a pneumatic driving structure, the push rod driving assembly 460 pushes the clamping bracket 310, and the clamping bracket 310 rotates relative to the push rod 390 to incline relative to the push rod 390, so that the inner reinforcing ring clamped by the clamping system inclines to smoothly pass through the inner cavity of the pressure container, and preferably, the inclination angle of the inner reinforcing ring relative to the push rod 390 is 0-45 degrees. It is further preferred that the push rod 390 is provided with a positioning fine adjustment stopper to adjust the inclination angle of the clamping bracket 310 and to finally position the clamping bracket 310, so that the position of the inner reinforcing ring, especially the vertical position thereof, is calibrated by the positioning of the clamping bracket 310.
The device for installing the reinforcing ring in the tank body of the pressure vessel provided by the application is characterized in that the running speed of the running system 100 is 330-3300 mm/min; the lifting/lowering speed of the cross arm assembly 220 is 1250mm/min; the expansion and contraction of the cross arm assembly 220 is effectively formed to 11300mm, wherein the mother cross arm is 6500mm, and the child cross arm is 4800mm; the telescopic feeding speed of the cross arm is 800-8000 mm/min, and the auxiliary cross arm is 668-6680 mm/min; the push rod 390 has an inclination angle of 0-45 degrees, the effective strokes of the first pneumatic driving piece and the second pneumatic driving piece of the clamping tensioning driving assembly 430 are 500mm, and the diameter range of the inner reinforcing ring which can be clamped by the clamping system is phi 1500 mm-phi 2500mm. The device for installing the reinforcing ring in the pressure container tank body operates stably under the conditions that the ambient temperature is 0-40 ℃, the relative humidity is less than or equal to 90 percent and the continuous operation is carried out for 22 hours under the rated load, the inner reinforcing ring is assembled by using the device, and the production beat is that 6 inner reinforcing rings are assembled per hour. Not only reduces the number of operators for assembling the inner reinforcing ring, but also improves the working efficiency. In addition, the device for installing the reinforcing ring in the pressure container tank body is high in assembly precision, can avoid scraping the tank plate of the pressure container, is simple to operate, and can remarkably reduce labor intensity.
The operation of the device for installing the reinforcing ring in the pressure vessel tank of the present application will be further explained below with reference to the example of installing the I-shaped inner reinforcing ring in the novel LNG tank. The device for installing the reinforcing ring in the tank body of the pressure vessel is not limited to be applied to the LNG tank body disconnection structure.
The inner reinforcing ring is installed as follows:
the center of the inner I-shaped stiffener ring is aligned onto the clamp roller 320 of the clamping system with the opening of the inner I-shaped stiffener ring facing downward and further with the clamp roller 320 and the tension roller 340 clamping the inner I-shaped stiffener ring by the actuation of the clamp tension drive assembly 430. The telescopic inserted rod driving assembly 450 drives the telescopic inserted rod to be inserted into the insertion hole of the I-shaped inner reinforcing ring adjacent to the opening, the tightening lever driving assembly 440 drives the power arm of the tightening lever 360 to enable the telescopic inserted rod to move relatively, namely, the opening of the I-shaped inner reinforcing ring is pulled to be close, the circumference of the I-shaped inner reinforcing ring is reduced, and after the clamping support 310 is inclined by a certain angle through the combined action of the push rod driving assembly 460 and the push rod 390, the I-shaped inner reinforcing ring is fed into the tank body assembly part of the pressure container after being inclined by a certain angle. The I-shaped inner reinforcing ring is adjusted to rotate and position through a turntable 380, a push rod 390 and the like, fine adjustment and centering are further performed through a cross bracket 381, and the I-shaped inner reinforcing ring is closely attached to the tank plate through rolling of the clamping roller 320 and the tensioning roller 340 after the telescopic inserted rod is retracted.
The operation of the device for installing the reinforcing ring in the tank body of the pressure vessel is as follows:
lifting a tank shell section assembly part of the pressure vessel to an installation position;
starting the traveling driving assembly to enable the traveling system 100 to travel to the front of the tank body of the pressure container;
turning on the swing drive assembly 410 and the lift drive assembly 420 to align the clamping bracket 310 to the longitudinal center of the tank;
hanging the I-shaped inner reinforcing ring to the clamping bracket 310, so that the opening of the I-shaped inner reinforcing ring is downwards sleeved on the clamping roller 320 and the tensioning roller 340;
opening the clamping tensioning driving assembly 430 to enable the clamping roller 320 and the tensioning roller 340 to support and clamp the I-shaped inner reinforcing ring;
opening the telescopic inserted rod driving assembly 450 to enable the telescopic inserted rod to extend out and be inserted into the jack of the I-shaped inner reinforcing ring;
opening the pinch lever drive assembly 440 to reduce the diameter of the I-shaped inner stiffening ring;
opening a turntable 380 driving assembly to enable the opening of the I-shaped inner reinforcing ring to reach the position of a specified bus of the tank body of the specified pressure vessel;
the push rod driving assembly 460 is started to enable the I-shaped inner reinforcing ring to incline 25-45 degrees, such as 28 degrees;
starting the telescopic driving assembly to enable the child cross arm to extend out relative to the mother cross arm, so that the I-shaped inner reinforcing ring is fed into a tank opening of the pressure container;
turning on the turntable 380 drive assembly to make the opening direction of the I-shaped inner reinforcing ring be 2 o 'clock, and the opening directions of the adjacent I-shaped inner reinforcing rings are different, for example, the opening direction of the I-shaped inner reinforcing ring adjacent to the I-shaped inner reinforcing ring is 10 o' clock;
starting a bracket driving assembly to enable the I-shaped inner reinforcing ring to be finely adjusted up and down and left and right so that the I-shaped inner reinforcing ring is opposite to the center of the tank opening;
starting the telescopic driving assembly to enable the child cross arm to extend out relative to the mother cross arm to convey the I-shaped inner reinforcing ring to the installation position;
opening the push rod driving assembly 460 to enable the I-shaped inner reinforcing ring to be perpendicular to the tank plate of the pressure vessel;
starting the bracket driving assembly to enable the I-shaped inner reinforcing ring to be finely adjusted up and down, left and right so as to be opposite to the tank plate;
opening the tightening lever driving assembly 440 to expand the diameter of the I-shaped inner reinforcing ring, and expanding the opening of the I-shaped inner reinforcing ring and butting the mounting position;
opening the clamping tensioning driving assembly 430 to enable the clamping roller 320 and the tensioning roller 340 to be pressed on the I-shaped inner reinforcing ring and to be positioned and welded;
opening the telescopic plunger drive assembly 450 to retract the telescopic plunger to withdraw from the socket of the I-shaped inner stiffener ring;
the turntable 380 driving assembly is started, so that the clamping roller 320 and the tensioning roller 340 roll on the inner side of the I-shaped inner reinforcing ring, and the circumferential ring of the I-shaped inner reinforcing ring is closely attached to the tank plate and is positioned and welded.
Closing the clamping tensioning drive assembly 430, retracting the clamping roller 320 and the tensioning roller 340;
and closing the telescopic driving assembly to enable the child cross arm to retract to the tank opening relative to the parent cross arm, and completing the installation of the I-shaped inner reinforcing ring.
In the above operation process, not every step is performed according to the above sequence, not every step is necessary or only performed once, and in a specific operation process, the position of the I-type inner reinforcing ring relative to the pressure vessel may be adaptively adjusted, which is not described herein.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" indicate or positional relationships are based on the positional relationships shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
It should be noted that all the directional indicators in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.
In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. In addition, descriptions such as those related to "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in this application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms are not necessarily directed 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. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A device for installing a reinforcing ring in a tank body of a pressure vessel is characterized in that,
the device for installing the reinforcing ring in the tank body of the pressure vessel comprises:
the walking system (100) comprises a base (110) and a walking mechanism (120) arranged on the base (110);
a support system (200) comprising a column assembly (210) rotatably disposed on the base (110) and a cross arm assembly (220) liftable disposed on the column assembly (210);
the clamping system is arranged on the cross arm assembly (220) and is used for clamping the inner reinforcing ring;
a drive system for providing a driving force for the running system (100), the support system (200) and the clamping system; the method comprises the steps of,
a control system disposed on the column assembly (210) and connected to the drive system to control the drive system;
the clamping system comprises:
a clamp bracket (310) disposed on the cross arm assembly;
at least two clamping rollers (320) arranged on the clamping bracket (310) through a first sliding pallet group (330);
at least two tensioning rollers (340) arranged on the clamping bracket (310) through a second sliding supporting plate group (350);
a tightening lever (360), a fulcrum of the tightening lever (360) being provided on the clamping bracket (310); the method comprises the steps of,
two tightening inserted rods (370) which are telescopically arranged on the resistance arm of the tightening lever (360);
wherein the clamping roller (320) and the tensioning roller (340) are respectively used for contacting with the inner surface of the inner reinforcing ring so as to support and clamp the inner reinforcing ring; the inner reinforcing ring is provided with an opening, and the parts of the inner reinforcing ring adjacent to the opening are respectively provided with jacks;
the drive system further includes:
the clamping tensioning driving assembly (430) is arranged on the clamping bracket (310) and used for driving the first sliding supporting plate group (330) and the second sliding supporting plate group (350) to slide relative to the clamping bracket (310);
the tightening lever (360) driving assembly is arranged between the clamping bracket (310) and a power arm of the tightening lever (360) and is used for driving the tightening lever (360) to rotate around the fulcrum; the method comprises the steps of,
and the telescopic inserting rod driving assembly (450) is arranged on the tightening lever (360) and is used for driving the tightening inserting rod (370) to stretch and retract relative to the tightening lever (360).
2. The device for installing a reinforcing ring in a tank of a pressure vessel according to claim 1, characterized in that the running system (100) further comprises a running rail (130); the driving system comprises a walking driving assembly, and the walking driving assembly is arranged on the base (110) and used for driving the walking mechanism (120) to walk on the walking guide rail (130).
3. The apparatus for installing a reinforcing ring in a pressure vessel tank as set forth in claim 1, wherein the support system (200) includes:
a column assembly (210) rotatably disposed on the base (110); and, a step of, in the first embodiment,
the cross arm assembly (220) is arranged on the upright post assembly (210) in a lifting manner;
the drive system includes:
a swing driving assembly (410) arranged on the base (110) and used for driving the upright post assembly (210) to rotate relative to the base (110); and, a step of, in the first embodiment,
and the lifting driving assembly (420) is arranged on the upright post assembly (210) and is used for driving the cross arm assembly (220) to lift relative to the upright post assembly (210).
4. A device for installing a reinforcing ring in a tank of a pressure vessel as claimed in claim 3, wherein said cross arm assembly (220) comprises:
the first end of the female cross arm is provided with a lifting slide rail or a guide wheel; and, a step of, in the first embodiment,
the child cross arm is slidably arranged on the parent cross arm;
the drive system includes:
and the telescopic driving assembly is arranged on the cross arm assembly (220) and is used for driving the sub cross arm to slide and stretch relative to the main cross arm.
5. The apparatus for installing a reinforcing ring in a pressure vessel tank as set forth in claim 4, wherein the column assembly (210) is provided with a lifting slide way matched with the lifting slide rail or a guide wheel groove matched with the guide wheel.
6. The apparatus for installing a reinforcing ring in a pressure vessel tank as set forth in claim 1, wherein the first sliding pallet group (330) includes:
a first slide pallet slidably disposed on the clamping bracket (310);
the spring guide fixing column (332), the fixed end is arranged on the clamping bracket (310), and the free end is arranged in the first sliding supporting plate in a penetrating way;
and the supporting plate spring (333) is sleeved on the spring guide fixing column (332), one end of the supporting plate spring is abutted to the fixed end, and the other end of the supporting plate spring is abutted to the first sliding supporting plate.
7. The apparatus for installing a reinforcing ring in a tank of a pressure vessel of claim 4, wherein said clamping system further comprises:
a turntable (380) disposed between the clamping bracket (310) and the sub-crossbar;
the drive system further includes:
and the turntable (380) driving assembly is used for driving the turntable (380) to rotate relative to the sub cross arm.
8. The apparatus for installing a reinforcing ring in a tank of a pressure vessel of claim 7, wherein said clamping system further comprises:
the push rod (390) is arranged between the clamping bracket (310) and the turntable (380), and the push rod (390) is rotationally connected with the clamping bracket (310);
the drive system further includes:
the push rod (390) driving assembly is telescopically arranged between the clamping bracket (310) and the turntable (380), and the push rod (390) driving assembly is rotationally connected with the clamping assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111643967.8A CN114406653B (en) | 2021-12-29 | 2021-12-29 | Device for installing reinforcing ring in pressure container tank body |
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| CN202111643967.8A CN114406653B (en) | 2021-12-29 | 2021-12-29 | Device for installing reinforcing ring in pressure container tank body |
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| CN114406653B true CN114406653B (en) | 2023-06-20 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201997907U (en) * | 2010-12-29 | 2011-10-05 | 东莞市蓝冠机械设备有限公司 | Covering machine for wave-blocking board |
| CN206662566U (en) * | 2017-05-08 | 2017-11-24 | 海汇集团有限公司 | Automatic welding of cylinder body connects actuation means |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014237190A (en) * | 2013-06-07 | 2014-12-18 | 株式会社ユタニ | Fastening device |
| CN112278185B (en) * | 2020-10-23 | 2022-09-02 | 中船黄埔文冲船舶有限公司 | Reinforcing ring installation device and reinforcing ring installation method |
| CN112340266A (en) * | 2020-10-30 | 2021-02-09 | 中车长江车辆有限公司 | Assembling device and assembling method for tank body swash plate |
| CN214769582U (en) * | 2020-12-29 | 2021-11-19 | 珠海森铂低温能源装备有限公司 | Automatic welding device for pressure container |
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2021
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201997907U (en) * | 2010-12-29 | 2011-10-05 | 东莞市蓝冠机械设备有限公司 | Covering machine for wave-blocking board |
| CN206662566U (en) * | 2017-05-08 | 2017-11-24 | 海汇集团有限公司 | Automatic welding of cylinder body connects actuation means |
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