CN217434636U - Ship lift counterweight block and preparation device thereof - Google Patents

Abstract

The utility model provides a ship lift balance weight and a preparation device thereof, wherein, the aggregate is iron ore sand which is prepared by cement, iron ore sand and water according to the mix proportion; the device comprises a pouring pedestal, wherein a template of a balancing weight is arranged on the pouring pedestal, and a plurality of second tensioning screw rods are arranged between the outer wall of the template and the pouring pedestal; the casting pedestal is further provided with at least two demolding grooves, the inside of each demolding groove is provided with a pre-buried clamping frame, the upper surface of each pre-buried clamping frame is flush with the surface of the casting pedestal, the pushing oil cylinders are further arranged between the two ends of each pre-buried clamping frame and the corresponding demolding groove, the internal structural steel bars of the concrete counterweight block of the ship lift are dense, the mounting precision of the pre-buried part is high, meanwhile, the product has high requirements on the concrete casting quality, and the pre-buried part is prevented from generating large displacement in the concrete casting process.

Description

Ship lift counterweight block and preparation device thereof

Technical Field

The utility model belongs to the technical field of the ship lift counterweight and specifically relates to a ship lift counterweight and preparation facilities thereof is related to.

Background

On the overall structure of the lifting system of the ship lift, the balance weight group has a very important position. A ship lift in the hydroelectric industry is a navigation building which utilizes a lift cage method to enable a ship to overcome the water level drop on a channel, and belongs to one of hoisting machinery. The ship reception chamber is a box body part for carrying ships, and the balance weight group belongs to a load balance weight block in hoisting machinery, and is specially used for balancing the load of the ship reception chamber, reducing the power of a motor and stabilizing the lifting operation state of the ship reception chamber. The ship-holding chamber and the balance weight group are connected into a whole through the traction steel wire rope, the steel wire rope is wound on a balance pulley block in a machine room at the top of the ship lift building, and mutual lifting motion between the ship-holding chamber and the balance weight group is realized by means of traction force generated by friction between the traction steel wire rope and the balance pulley, so that the purpose of transportation is achieved.

The concrete balance weight block of the ship lift has the outstanding characteristics of large structure size, heavy weight, thin thickness, high manufacturing precision requirement, high installation precision requirement of a shaping template, high concrete pouring requirement, complex integral manufacturing process, high technical difficulty and the like in the design, and faces a plurality of technical problems in the manufacturing process: (1) the thickness and the size precision of the template are difficult to control when the concrete counterweight block of the ship lift is manufactured, and the template is also very difficult to assemble and disassemble. (2) The concrete counterweight block of the ship lift structurally has the characteristics of overlarge weight, overlarge overall dimension and ultrathin thickness, the strength of the concrete counterweight block in the thickness direction is extremely poor, and the concrete counterweight block needs to undergo multiple procedures of weighing detection, static balance test, corrosion prevention and the like in the manufacturing process and needs to be turned over and hoisted. The conventional steel structure hoisting and turning-over mode generally adopts the way that hoisting lifting lugs are welded on components and steel wire ropes are matched to hoist and turn over. In the hoisting process, the hoisting method cannot avoid the generation of large constraint force in the thickness direction of the central belly of the concrete counterweight block, the phenomenon of fracture and damage of the concrete counterweight block can be possibly caused, and the construction requirement cannot be met by the conventional hoisting mode. (3) The internal structural steel bars of the concrete balance weight of the ship lift are dense, the requirement on the installation precision of the embedded part is high, and how to ensure that the embedded part cannot generate large displacement in the concrete pouring process on the premise of ensuring the concrete pouring quality is a technical difficulty faced in the concrete pouring process. (4) The concrete balance weight of the three gorges ship lift has the technical characteristics of large weight, large overall dimension and high control requirement on the overall dimension and weight error, and in order to ensure that the overall dimension after pouring can meet the design requirement, it is particularly important to select a proper bearing pedestal and a template with certain strength.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a ship lift balance weight piece and preparation facilities thereof solves the problem of ship lift concrete balance weight piece template dismouting, hoist and mount upset, balanced heavy piece size and built-in fitting location.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a ship lift counterweight block is formed by pouring high-volume-weight iron-steel sand concrete, wherein aggregate is iron ore sand and comprises cement, iron ore sand and water which are prepared according to a mixing ratio;

the top of the balance weight is provided with a lifting lug, the balance weight is also provided with a plurality of stop blocks for transmitting earthquake load, one end of each stop block is also provided with a fixing plate, the fixing plate protrudes out of the end face of the balance weight, and the fixing plate is connected with the stop blocks through a plurality of first locking nuts;

the steel plate for adjusting the balance weight is arranged at the top or the bottom of the balance weight, and the steel plate is embedded at the bottom or the top of the balance weight through a screw.

In the preferred scheme, the device comprises a pouring pedestal, a template of a counterweight block is arranged on the pouring pedestal, and a plurality of second tensioning screw rods are arranged between the outer wall of the template and the pouring pedestal;

the pouring pedestal is also provided with at least two demolding grooves, an embedded clamping frame is arranged in each demolding groove, the upper surface of each embedded clamping frame is flush with the surface of the pouring pedestal, and a pushing oil cylinder is arranged between each two ends of each embedded clamping frame and each demolding groove;

in the preferred scheme, the pouring pedestal is provided with an annular closed embedded contour line, an outer ring of the embedded contour line is provided with an embedded steel frame line, and an embedded bolt line is arranged between the embedded steel frame line and the embedded contour line;

the embedded contour line range is used for embedding I-shaped steel, the upper surface of the I-shaped steel is flush with the pouring pedestal, and the lower surface of the template is arranged on the upper surface of the I-shaped steel;

the range of the embedded bolt line is used for embedding a plurality of embedded bolts;

the line range of the pre-buried steel frame is used for pre-burying a plurality of fixed slot frames.

In the preferred scheme, a plurality of chamfering bars are arranged at the upper end and the lower end inside the template;

a pressing plate is further arranged on one side of the template, one end of the pressing plate is hinged to the bottom end of the template, the embedded bolt penetrates through the template, a nut on the embedded bolt abuts against the upper surface of the pressing plate, and the embedded bolt tightly presses the whole template on the upper surface of the I-shaped steel of the embedded contour line;

and a second tensioning screw rod is arranged between the top end of the template and the fixed groove frame, and two ends of the second tensioning screw rod are respectively hinged with the top end of the template and the fixed groove frame.

In the preferred scheme, still be equipped with the locating rack, be equipped with three locating surface at least on the locating rack, the locating surface supports and leans on the template, still is equipped with a plurality of stop block locating frames on the locating rack, still is equipped with the lug holding ring between the stop block locating frame.

In the preferred scheme, the collar of lug one end is connected with the lug holding ring, pours and is equipped with a plurality of adjusting nut on the pedestal, and a plurality of adjusting nut upper ends still are equipped with the backing plate, and the lug other end supports and leans on the backing plate.

In the preferred scheme, a first movable clamping frame or a second movable clamping frame is further arranged, the first movable clamping frame and the pre-buried clamping frame are symmetrically arranged, and the first movable clamping frame is connected with the two ends of the pre-buried clamping frame through a first tensioning screw rod;

two ends of the second movable clamping frame extend and are flush with two ends of the pre-buried clamping frame or exceed end faces, and a rubber pad is arranged between the first movable clamping frame or the second movable clamping frame and the pre-buried clamping frame;

and a balance weight block is hung on the first movable clamping frame through a gantry crane and placed on the turnover device.

In the preferred scheme, the turnover device comprises a first turnover seat and a cushion block, one end of the counterweight block is placed on the first turnover seat, and the other end of the counterweight block is placed on the cushion block;

the first overturning seat comprises a first fixed seat, a first rotating frame is hinged to the first fixed seat, and a stop block is arranged on one side of the upper end plane of the first rotating frame.

In a preferred scheme, the turnover device comprises a second turnover seat, the second turnover seat comprises a second fixed seat, a second rotating frame is hinged to the second fixed seat, a fixed clamping block is arranged on the second rotating frame, a movable clamping plate is arranged on one side of the fixed clamping block, the movable clamping plate and the fixed clamping block form a U-shaped clamping groove, an inserting block is arranged on the movable clamping plate, the inserting block is inserted into a groove body of the second rotating frame, a second locking nut is further arranged, and the second locking nut penetrates through the second rotating frame and the inserting block to lock the movable clamping plate;

the side face of the second rotating frame is abutted against the second fixed seat, and the inner surface of the fixed clamping block or the movable clamping plate is flush with the upper end face of the cushion block.

The utility model provides a ship lift balance weight and preparation facilities thereof, ship lift concrete balance weight inner structure reinforcing bar is intensive, built-in fitting installation accuracy requires highly, the product is high to concrete placement requirements for quality simultaneously, in order under the prerequisite of guaranteeing concrete placement quality, ensure that the built-in fitting can not produce great displacement at concrete placement in-process, the disposable integral concreting method of having adopted, greatly improved the wholeness of balancing weight block structure, shock resistance, impermeability, concrete counter weight pouring quality has been ensured.

The concrete counterweight block manufacturing method has the advantages that the research on the construction technologies such as accurate blanking control, demoulding pedestals, rapid positioning combined steel templates, safe transportation of thin super-large concrete blocks and the like for manufacturing the concrete counterweight block is carried out. The application of the research results ensures the manufacturing quality and safe production of the high-precision concrete counterweight block and reduces the construction cost. The whole construction process is mature, has a lot of innovation points, and the achievement is at the leading level in the similar technologies at home and abroad, thereby being worthy of wide popularization and application.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a main view of the counterweight block of the present invention;

FIG. 2 is a cross-sectional view of the counterweight block A-A of FIG. 1;

FIG. 3 is a view showing the mounting structure of the stopper and the fixing plate according to the present invention;

FIG. 4 is a top view of the pouring platform of the present invention;

FIG. 5 is a sectional view of the pouring pedestal B-B of the present invention;

FIG. 6 is a structural view of the form mounting of the present invention;

FIG. 7 is a top view of the form mounting structure of the present invention;

FIG. 8 is a view of the positioning frame of the present invention;

FIG. 9 is a view of the mounting structure of the lifting lug of the present invention;

fig. 10 is a diagram of a counterweight clamping arrangement according to the present invention;

FIG. 11 is a diagram of the counterweight hoisting structure of the present invention;

FIG. 12 is a composition diagram of a counterweight block for gantry crane lifting according to the present invention;

FIG. 13 is a structural view of the first tilting seat of the present invention;

FIG. 14 is a structural view of the second movable clamping frame of the present invention;

FIG. 15 is a preferred structure diagram of a gantry crane lifting counterweight block of the present invention;

FIG. 16 is a structural view of a second movable clamping frame of the present invention;

in the figure: a counterweight block 1; a steel plate 101; a stopper block 2; a lifting lug 3; a mounting ring 301; a fixed plate 4; a first lock nut 5; pouring a pedestal 6; embedding a contour line 601; embedding a bolt line 602; pre-burying a steel frame wire 603; a stripping groove 604; pre-burying a clamping frame 7; a pushing oil cylinder 8; a first movable clamping frame 9; a rubber pad 10; a template 11; a first tensioning screw 12; a gantry crane 13; a first flipping base 14; a first fixed seat 1401; a first rotating frame 1402; a stopper 1403; a cushion block 15; a second flipping base 16; a second turret 1601; a second fixed seat 1602; fixing clamp blocks 1603; a movable clamp plate 1604; an insert block 1605; a second lock nut 1606; a second movable clamping frame 17; a second tensioning screw 18; a fixed slot frame 19; a platen 20; embedding a bolt 21; a positioning frame 22; a positioning surface 2201; a stopper positioning frame 23; a shackle positioning ring 24; a backing plate 25; the nut 26 is adjusted.

Detailed Description

Example 1

As shown in fig. 1 to 16, a ship lift counterweight is formed by pouring high-volume-weight iron-steel sand concrete, wherein aggregate is iron ore sand, and comprises cement, iron ore sand and water which are prepared according to a mixing ratio;

the top of the counterweight block 1 is provided with a lifting lug 3, the counterweight block 1 is also provided with a plurality of stop blocks 2 embedded for transmitting earthquake load, one end of each stop block 2 is also provided with a fixing plate 4, the fixing plate 4 protrudes out of the end surface of the counterweight block 1, and the fixing plate 4 is connected with the stop blocks 2 through a plurality of first locking nuts 5;

the steel plate 101 for adjusting the balance weight is arranged at the top or bottom of the balance weight 1, and the steel plate 101 is embedded at the bottom or top of the balance weight 1 through a screw.

The concrete balance weights of the ship lift structurally belong to ultra-large ultra-thin type, steel lugs are buried in the top of each concrete balance weight, and stop buried pieces for transmitting earthquake loads are buried in the height positions of the upper portion and the lower portion of each balance weight, which are flush with the central line of a steel frame beam. The bottom of the balance weight is provided with a steel plate for adjusting the weight of the balance weight, and the steel plate is connected with the steel plate buried at the bottom of the balance weight through a screw.

The concrete balancing weight block is formed by pouring high-volume-weight iron-steel sand concrete, the aggregate is iron ore sand and is mainly prepared by mixing cement, iron ore sand and water according to a certain mixing ratio, the volume weight is 3.0t/m3, and the concrete strength grade is greater than C40.

The concrete balance weight adopts high-volume-weight concrete, the aggregate is iron ore sand, the volume weight is 3.0t/m3, and the strength grade of the concrete is not lower than C40. The proportion of the concrete should be determined by experiments, and the requirements of strength and volume weight must be ensured.

It is required to use a steel mold having sufficient rigidity for the concrete casting. During construction, concrete needs to be vibrated compactly and uniformly, and effective measures are taken to avoid lateral segregation caused by the volume weight inside the concrete block.

The coplanarity tolerance of the stop surfaces on the same plane is 1 mm. The planeness of each outer surface of the balancing weight is not more than 5mm, and the perpendicularity of the balancing weight to a vertical plane is not more than 3 mm.

The steel lifting lug is positioned on the symmetrical center line of the balance weight, and the deviation is not more than +/-2.5 mm.

Effective measures are taken to avoid the inclination of the counterweight blocks after suspension, and the deflection quantity of the counterweight blocks along the water flow direction on the whole height is required to be not more than 10mm and the deflection quantity of the counterweight blocks perpendicular to the water flow direction is required to be not more than 5mm in a free suspension state.

After the quality changes stably, the concrete balance weights are weighed one by one, and the quality value is marked on the thickness end face. The weight deviation of each concrete counterweight block must not exceed +/-1% of the designed weight.

The lifting lug is of a welding structure, and the stressed welding seam is a welding seam of the same type. The hanging head part adopts a forged piece, and is tested and accepted according to the IV group test of JB/T5000.8, and the ultrasonic flaw detection is qualified according to the II grade of JB/T5000.15.

After the lifting lug, the steel support and the stop piece are welded, stress relief heat treatment and deformation correction are carried out.

The machining of the lifting lug must be carried out after welding.

Example 2

As described further in connection with embodiment 1, the structure shown in fig. 1 to 16 includes a pouring platform 6, a formwork 11 for balancing the weight 1 is disposed on the pouring platform 6, and a plurality of second tension screws 18 are disposed between the outer wall of the formwork 11 and the pouring platform 6. In the manufacture of steel structures and concrete blocks in the hydroelectric industry, the load-bearing platforms conventionally employed are generally steel plate platforms. The steel plate platform is generally a steel plate welding assembly, the pressure-bearing anti-deformation capability of the steel plate platform is poor, and the surface flatness of the steel platform deforms in the manufacturing process of the concrete counterweight block, so that the size precision of the bottom surface of the concrete counterweight block cannot meet the design requirement. However, the solid steel platform can meet the technical requirements, but the construction cost is too high.

The pouring pedestal 6 is also provided with at least two demolding grooves 604, an embedded clamping frame 7 is arranged in the demolding grooves 604, the upper surface of the embedded clamping frame 7 is flush with the surface of the pouring pedestal 6, and a pushing oil cylinder 8 is also arranged between two ends of the embedded clamping frame 7 and the demolding grooves 604; the lifting jack is convenient to smoothly lift and demould, and the balance weight block can be conveniently turned over and hoisted.

In a preferred scheme, the pouring pedestal 6 is provided with an annular closed embedded contour line 601, an outer ring of the embedded contour line 601 is provided with an embedded steel frame line 603, an embedded bolt line 602 is arranged between the embedded steel frame line 603 and the embedded contour line 601, the range of the embedded contour line 601 is used for embedding I-shaped steel, the upper surface of the I-shaped steel is flush with the pouring pedestal 6, and the lower surface of the template 11 is arranged on the upper surface of the I-shaped steel; the range of the embedded bolt line 602 is used for embedding a plurality of embedded bolts 21; the range of the pre-buried steel frame wire 603 is used for pre-burying a plurality of fixed slot frames 19. The installation positions of the template 11, the embedded bolts 21 and the fixed slot frames 19 are planned by the embedded contour lines 601, the embedded bolt lines 602 and the embedded steel frame lines 603.

In a preferred scheme, a plurality of chamfer bars are further arranged at the upper end and the lower end inside the template 11; the function of chamfering the balance weight 1 is achieved.

A pressing plate 20 is further arranged on one side of the template 11, one end of the pressing plate 20 is hinged to the bottom end of the template 11, the embedded bolts 21 penetrate through the template 11, nuts on the embedded bolts 21 abut against the upper surface of the pressing plate 20, and the whole template 11 is tightly pressed on the upper surface of the I-shaped steel of the embedded contour line 601 through the embedded bolts 21; the pressing plate 20 presses the bottom end of the template 11, and the installation is convenient.

A second tensioning screw rod 18 is arranged between the top end of the template 11 and the fixed slot frame 19, and two ends of the second tensioning screw rod 18 are respectively hinged with the top end of the template 11 and the fixed slot frame 19. The second tensioning screw rod 18 fixes the top of the template 11, the template is combined by using the pin, the adjusting pull rod and the fastening bolt, the structure is simple, the reinforcement is firm, the dismounting and the mounting are convenient, the template can be rapidly put into repeated use, and the technical requirements of the concrete counterweight block on the overall dimension and the requirements of the manufacturing period can be met.

In the preferred scheme, a positioning frame 22 is further provided, at least three positioning surfaces 2201 are arranged on the positioning frame 22, the positioning surfaces 2201 abut against the template 11, a plurality of stop block positioning frames 23 are further arranged on the positioning frame 22, and a lifting lug positioning ring 24 is further arranged between the stop block positioning frames 23. As shown in the structure of FIG. 8, the four positioning surfaces 2201 of the positioning frame 22 are positioned by using surfaces, and the two positioning surfaces 2201 are perpendicular to each other, so that the positioning accuracy is higher.

In the preferred scheme, the mounting ring 301 at one end of the lifting lug 3 is connected with the lifting lug positioning ring 24, the pouring pedestal 6 is provided with a plurality of adjusting nuts 26, the upper ends of the adjusting nuts 26 are also provided with a backing plate 25, and the other end of the lifting lug 3 abuts against the backing plate 25. The positioning depth of the mounting ring 301 at one end of the lifting lug 3 is adjusted, and the height between the lifting lug 3 and the pouring pedestal 6 is adjusted by the adjusting nut 26, so that the central position of the lifting lug 3 is controlled.

In the preferred scheme, a first movable clamping frame 9 or a second movable clamping frame 17 is further arranged, the first movable clamping frame 9 and the pre-buried clamping frame 7 are symmetrically arranged, and the first movable clamping frame 9 is connected with two ends of the pre-buried clamping frame 7 through a first tensioning screw rod 12; the first movable clamping frame 9 adopts a single-block structure, such as the structures shown in figures 11-12, and is flexibly installed.

Two ends of the second movable clamping frame 17 extend and are flush with two ends of the pre-buried clamping frame 7 or exceed end faces, and a rubber pad 10 is arranged between the first movable clamping frame 9 or the second movable clamping frame 17 and the pre-buried clamping frame 7; the second movable clamping frame 17 is in a strip-shaped structure, so that the balance weight block 1 can be well protected.

The balance weight 1 is hung on the first movable clamping frame 9 through a gantry crane 13 and placed on the turnover device. The overturning device is used for overturning the balance weight block 1.

In a preferable scheme, the turning device comprises a first turning seat 14 and a cushion block 15, one end of the balance weight 1 is placed on the first turning seat 14, the other end of the balance weight is placed on the cushion block 15, the first turning seat 14 comprises a first fixed seat 1401, the first fixed seat 1401 is hinged with a first rotating frame 1402, and one side of the upper end plane of the first rotating frame 1402 is provided with a stop block 1403. The simple upset of first upset seat 14 adopts and is equipped with dog 1403 and carry out the flange location, upset that can be better, and the upset is simple.

In the preferred scheme, including second roll-over seat 16 on the turning device, second roll-over seat 16 includes second fixing base 1602, it has second rotating turret 1601 to articulate on the second fixing base 1602, be equipped with fixed splint 1603 on the second rotating turret 1601, fixed splint 1603 one side is equipped with movable clamp plate 1604, movable clamp plate 1604 constitutes the double-layered groove of U-shaped with fixed splint 1603, be equipped with inserted block 1605 on the movable clamp plate 1604, inserted block 1605 is inserted on the cell body of second rotating turret, still be equipped with second lock nut 1606, second lock nut 1606 passes second rotating turret 1601 and inserted block 1605 locking movable clamp plate 1604, second rotating turret 1601 side supports and leans on second fixing base 1602, fixed splint 1603 or movable clamp plate 1604 internal surface and cushion 15 up end flush. As shown in fig. 16, the movable clamping plate 1604 and the fixed clamping block 1603 form a U-shaped clamping groove, the counterweight 1 is firstly placed on the fixed clamping block 1603 and clamped by the movable clamping plate 1604, after the position of the counterweight 1 is fixed, the gantry crane 13 is rotated conveniently, and the inner surface of the fixed clamping block 1603 or the movable clamping plate 1604 is flush with the upper end surface of the cushion block 15, so that a good supporting function is achieved.

Example 3

Further described with reference to embodiments 1 and 2, as shown in fig. 1 to 16, a method for manufacturing a balance weight of a ship lift includes first installing an embedded clamping frame 7 in a demolding groove 604 of a casting pedestal 6, and adjusting an upper surface of the embedded clamping frame 7 to be flush with an upper surface of the casting pedestal 6;

and (3) reassembling the template: installing templates 11 on the embedded wheel I-steel of the embedded contour line 601 of the pouring pedestal 6, tightly pressing the bottom ends of the templates 11 through embedded bolts 21 and a pressing plate 20, and placing chamfer bars among the connection of a plurality of templates 11 and at the upper end and the lower end of each template 11;

the upper end of the fixed template 11 is tensioned between the upper end of the template 11 and the fixed groove frame 19 through a second tensioning screw rod 18, and the template 11 is built completely;

assembling steel bars in the formwork 11, abutting four positioning surfaces 2201 of a positioning frame 22 against the inside of the formwork 11, positioning a stop block 2 and a lifting lug 3 by a stop block positioning frame 23 and a lifting lug positioning ring 24 of the positioning frame 22, and then erecting a steel bar framework;

the stop block 2, the lifting lug 3 and the steel plate 101 are fixed on a steel reinforcement framework inside the template 11 through welding, after welding, ultrasonic flaw detection is used for detecting a welding seam, and after welding, stress relief heat treatment and deformation correction are carried out;

the concrete is prepared by mixing cement, iron ore sand and water according to a certain mixing proportion, mixed cement is poured into the template 11 to form a balance weight block 1, the volume weight of the balance weight block 1 is 3.0t/m3, and the strength grade of the concrete is greater than C40;

the thickness of the poured virtual pavement is slightly larger than the layer thickness, a flat vibrator is used for vibrating back and forth in the direction vertical to the pouring direction, the moving mark is continuously used for controlling the thickness of the concrete, and after the vibrating is finished, a surface is leveled by a scraping ruler or a planker;

the concrete must be fully stirred and then poured in layers, and the vibrating rod is used for uniformly and compactly vibrating the concrete after pouring, so that the segregation of the internal volume weight is effectively avoided;

checking whether the die has deformation and die running phenomena at any time during pouring and tamping, and correcting in time;

after the die is used every time, the deformation condition of the die plate is checked; and recording pouring date and weather conditions.

The use of a plug-in vibrator should be fast-plugging and slow-unplugging. The insertion points need to be uniformly arranged, move point by point and are sequentially carried out, omission is avoided, and uniform compaction is achieved. The moving distance is not more than 1.5 times of the action radius of the vibrating rod and is generally 300-400 mm. When the upper layer is vibrated, the concrete surface of the lower layer is inserted by 50mm to eliminate the joint between the two layers. When vibrating, an oblique vibrating method is adopted along the pouring sequence direction, the vibrating rod has an inclination angle of about 60 degrees with the horizontal, the rod head advances forwards, the rod interval is preferably 500mm, and the vibrating time is preferably that bubbles emerge from the concrete surface slurry turning.

The top of the container should be covered during transport of concrete in summer and rainy weather. In order to prevent concrete mixtures stored in the open air from being washed by rain and directly exposed to the sun, a movable cloth cover is made to cover the concrete mixtures.

The member is produced in the open air, and accumulated water on the pedestal and in the template should be cleaned immediately after rain. If the release agent is washed away, the release agent can be produced after being coated.

After the concrete surface is hardened (about pouring is completed for 6-8 hours), the concrete surface is cured, moisturizing is performed by means of watering, film coating and the like, and the curing time is generally not less than 14 days. When the two films are lapped, the lapping width is not less than 40cm, and the films are kept intact and cover the board surface all the time during the curing.

When the watering curing is difficult, the curing agent is sprayed to carry out the concrete curing. The spraying should be uniform, the film thickness should be sufficient to form a completely closed moisture film, and the sprayed surface should not have color differences. The spraying time is preferably carried out after the bleeding on the concrete surface is finished. The spraying height is preferably controlled to be 0.5-1 m. When the first-grade health preserving agent is used, the minimum spraying dosage is not less than 0.30 kg/m 2 qualified product, and the minimum spraying dosage is not less than 0.35 kg/m 2. The curing agent which is easily washed away by rain and has influence on the strength and the surface wear resistance of the concrete cannot be used. When the sprayed health preserving agent does not reach the effective water retention rate of more than 90 percent, a method of spraying 2 health preserving agents for 1 layer or spraying 1 layer of health preserving agent and then covering can be adopted.

In the season of sudden drop of air temperature and strong wind, the early surface protection can be carried out on the concrete, and films, straw curtains, broken cloth and the like can be adopted for covering and insulating, so that collision and improper bearing are prevented. After the concrete reaches 40% of the design strength, pedestrians can pass through.

The formwork dismantling time is determined according to the strength of the concrete and the temperature difference between the inside and the outside of the concrete, so that the production of components during the formwork dismantling winter period (namely, when the average daily temperature of the outdoor is continuously 5d and is stably lower than 5 ℃) at night or when the temperature suddenly drops is avoided, and a method for heating water is preferably adopted during the concrete stirring. Whether the aggregate needs to be heated depends on whether the temperature of the concrete can be ensured after the water is heated.

After the balance weight 1 is formed, the second tensioning screw rod 18 is used for disassembling the template 11 to demould the side surface of the balance weight 1, and the pressing plate 20 is disassembled to finish the disassembly of the template 11;

installing a first movable clamping frame 9 or a second movable clamping frame 17 at a position corresponding to the pre-buried clamping frame 7, and connecting the first movable clamping frame 9 or the second movable clamping frame 17 with two ends of the pre-buried clamping frame 7 in a tensioning manner through a first tensioning screw rod 12;

pushing two ends of the pre-buried clamping frame 7 by using a pushing oil cylinder 8 to push and lift the counterweight block 1 to form demoulding, and hoisting the counterweight block 1 by using a gantry crane 13;

hoisting a balance weight 1 by a gantry crane 13, placing the balance weight 1 on a first overturning seat 14 and a cushion block 15, disassembling a first movable clamping frame 9 and a pre-embedded clamping frame 7, trimming the surface and edge of the upper surface of the balance weight 1, performing anticorrosive spraying, and performing anticorrosive spraying on the overturning balance weight 1 by using the overturning seat 14 and the gantry crane 13 after single-side spraying;

the cement-based composite high polymer material is used as an outer surface protective layer of the concrete balance weight, and a special spray gun and high-pressure airless spraying are adopted.

Before spraying, the board surface must be dried, the water content should not be more than 6%, when the coating material has special requirements according to the use specification, construction is carried out according to the requirements, when the construction is carried out by using the moisture-curing type epoxy resin curing agent, the water content of the base layer can not be limited by the requirements, but the surface of the base layer cannot have floating water;

before spraying, the board surface must be clean, and floating ash, cement slag and loose parts of the board surface are cleaned; the surface treatment is preferably carried out by brushing the surface with a bristle brush and then cleaning the surface with a clean bristle brush, a compressed air machine or a vacuum cleaner.

The surface polluted by grease and chemicals can be treated by a solvent, a detergent and an alkali liquor washing method, and during spraying construction, the environmental temperature is preferably 15-30 ℃, the relative humidity is not more than 80%, and the construction under strong light irradiation is not suitable;

when spraying, the distance between the gun head and the plate surface is about 200-300 ram, the spray gun is basically vertical to the plate surface, and the spray gun is moved close to a spraying point at a corner part for intermittent spraying;

before the previous paint is not dried, the second paint is not coated, and the interval time is about 8-20 hours; after all coatings are finished, naturally drying for at least 7 days;

and (3) checking the quality of the coating: the film is smooth and flat, has consistent color and has no defects of bubbles, sagging, peeling and the like;

checking the thickness of the coating, namely, when in spraying construction, a sample plate of 350mm multiplied by 320mm is made at the same time, the thickness of the cut 3 test pieces of 100mm multiplied by 25 mm is determined, the thickness is temporarily determined to be 1.8mm according to the design requirement, and the test pieces are checked by using a 8-time magnifier, and the test pieces are qualified if no pinholes exist; after finishing the concrete plate surface, performing weight and size inspection report and providing inspection report records;

the gantry crane 13 is adopted to hoist the counterweight block 1 to the weighing platform for weighing, after weighing, the counterweight block 1 is hoisted and moved to the front of the figure-shaped inspection frame, and the surface of the counterweight block 1 is over against the figure-shaped inspection frame; and measuring 8 angular point coordinates of the precast slab by using a total station and a level gauge, and calculating the deviation of the slab along the longitudinal axis direction in a free suspension state according to the measurement result.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims (10)

1. A ship lift counterweight block is characterized in that: the high-volume-weight steel sand concrete is poured, aggregate is iron ore sand, a lifting lug (3) is arranged at the top of a balance weight (1), a plurality of stop blocks (2) for transmitting earthquake load are buried on the balance weight (1), a fixing plate (4) is further arranged at one end of each stop block (2), the fixing plate (4) protrudes out of the end face of the balance weight (1), and the fixing plate (4) is connected with the stop blocks (2) through a plurality of first locking nuts (5);

the steel plate (101) for adjusting the balance weight is arranged at the top or the bottom of the balance weight (1), and the steel plate (101) is embedded at the bottom or the top of the balance weight (1) through a screw.

2. A manufacturing apparatus for manufacturing the balance weight of a ship lift according to claim 1, comprising: the device comprises a pouring pedestal (6), a template (11) of a balance weight block (1) is arranged on the pouring pedestal (6), and a plurality of second tensioning screw rods (18) are arranged between the outer wall of the template (11) and the pouring pedestal (6);

still be equipped with two at least drawing of patterns grooves (604) on pouring pedestal (6), drawing of patterns groove (604) inside is equipped with pre-buried clamping frame (7), and pre-buried clamping frame (7) upper surface flushes with pouring pedestal (6) surface, still is equipped with between pre-buried clamping frame (7) both ends and drawing of patterns groove (604) and pushes away hydro-cylinder (8).

3. The apparatus for preparing a balance weight of a ship lift according to claim 2, wherein: the pouring pedestal (6) is provided with an annular closed embedded contour line (601), an embedded steel frame line (603) is arranged on the outer ring of the embedded contour line (601), and an embedded bolt line (602) is arranged between the embedded steel frame line (603) and the embedded contour line (601);

the range of the embedded contour line (601) is used for embedding I-shaped steel, the upper surface of the I-shaped steel is flush with the pouring pedestal (6), and the lower surface of the template (11) is arranged on the upper surface of the I-shaped steel;

the range of the embedded bolt line (602) is used for embedding a plurality of embedded bolts (21);

the range of the pre-embedded steel frame wire (603) is used for pre-embedding a plurality of fixed slot frames (19).

4. The apparatus for preparing a balance weight of a ship lift according to claim 3, wherein: a plurality of chamfering bars are arranged at the upper end and the lower end in the template (11);

a pressing plate (20) is further arranged on one side of the template (11), one end of the pressing plate (20) is hinged to the bottom end of the template (11), the embedded bolt (21) penetrates through the template (11), a nut on the embedded bolt (21) abuts against the upper surface of the pressing plate (20), and the embedded bolt (21) tightly presses the whole template (11) on the upper surface of the I-shaped steel of the embedded contour line (601);

a second tensioning screw rod (18) is arranged between the top end of the template (11) and the fixed groove frame (19), and two ends of the second tensioning screw rod (18) are respectively hinged with the top end of the template (11) and the fixed groove frame (19).

5. The apparatus for preparing a balance weight of a ship lift according to claim 3, wherein: still be equipped with locating rack (22), be equipped with at least three locating surface (2201) on locating rack (22), locating surface (2201) support leans on template (11), still is equipped with a plurality of stop block locating frames (23) on locating rack (22), still is equipped with lug holding ring (24) between stop block locating frame (23).

6. The manufacturing apparatus of a ship lift counterweight according to claim 5, wherein: the mounting ring (301) of lug (3) one end is connected with lug holding ring (24), is equipped with a plurality of adjusting nut (26) on pouring pedestal (6), and a plurality of adjusting nut (26) upper end still is equipped with backing plate (25), and the lug (3) other end supports and leans on backing plate (25).

7. The apparatus for preparing a balance weight of a ship lift according to claim 2, wherein: the embedded type pre-buried clamping device is further provided with a first movable clamping frame (9) or a second movable clamping frame (17), the first movable clamping frame (9) and the pre-buried clamping frame (7) are symmetrically arranged, and the first movable clamping frame (9) is connected with the two ends of the pre-buried clamping frame (7) through a first tensioning screw rod (12);

two ends of the second movable clamping frame (17) extend and are flush with two ends of the pre-buried clamping frame (7) or exceed the end faces, and a rubber pad (10) is arranged between the first movable clamping frame (9) or the second movable clamping frame (17) and the pre-buried clamping frame (7);

the balance weight (1) is hung on the first movable clamping frame (9) through a gantry crane (13) and placed on the turnover device.

8. The apparatus for preparing a balance weight of a ship lift according to claim 7, wherein: the turnover device comprises a first turnover seat (14) and a cushion block (15), one end of the balance weight block (1) is placed on the first turnover seat (14), and the other end of the balance weight block is placed on the cushion block (15);

the first overturning seat (14) comprises a first fixed seat (1401), a first rotating frame (1402) is hinged to the first fixed seat (1401), and a stop block (1403) is arranged on one side of the upper end plane of the first rotating frame (1402).

9. The apparatus for preparing a balance weight of a ship lift according to claim 7, wherein: including second upset seat (16) on the turning device, second upset seat (16) include second fixing base (1602), it has second rotating turret (1601) to articulate on second fixing base (1602), be equipped with fixed clamp splice (1603) on second rotating turret (1601), fixed clamp splice (1603) one side is equipped with movable clamp plate (1604), movable clamp plate (1604) and fixed clamp splice (1603) constitute the double-layered groove of U-shaped, be equipped with inserted block (1605) on movable clamp plate (1604), inserted block (1605) are inserted on the cell body of second rotating turret (1601), still be equipped with second lock nut (1606), second lock nut (1606) pass second rotating turret (1601) and inserted block (1605) locking movable clamp plate (1604).

10. The apparatus for preparing a balance weight of a ship lift according to claim 9, wherein: the side surface of the second rotating frame (1601) abuts against the second fixed seat (1602), and the inner surface of the fixed clamping block (1603) or the movable clamping plate (1604) is flush with the upper end surface of the cushion block (15).

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