阅读说明：本技术 竖井混凝土衬砌悬吊缩口施工装置及方法 (Vertical shaft concrete lining suspension necking construction device and method ) 是由 吴卫东 黄润德 杨建锋 郭灵强 韩继忠 裴永昇 于 2021-08-20 设计创作，主要内容包括：一种竖井混凝土衬砌悬吊缩口施工装置及方法,它包括模组、脱模机构、分料机构和悬吊机构,通过主模和缩口模连接组成模组,主模为铰接折叠结构,缩口模为滑面滑动结构,脱模机构与缩口模连接,悬吊机构位于主模竖井井筒上部,分料机构位于主模和悬吊机构之间,悬吊机构释放主模进入井底,通过主模自上而下衬砌或自下而上衬砌,或者滑移衬砌,衬砌过程中,通过脱模机构驱动缩口模缩口或胀口,分料机构均匀分料,适应性好,短段和长段竖井衬砌无需多套模板,无需频繁安拆,有利于消缺,减小质量控制难度,提高施工效率,操作简单方便。(A vertical shaft concrete lining suspension necking construction device and a method thereof comprise a module, a demolding mechanism, a distributing mechanism and a suspension mechanism, wherein the module is formed by connecting a main die and a necking die, the main die is of a hinged folding structure, the necking die is of a sliding surface sliding structure, the demolding mechanism is connected with the necking die, the suspension mechanism is positioned at the upper part of a vertical shaft of the main die, the distributing mechanism is positioned between the main die and the suspension mechanism, the suspension mechanism releases the main die to enter a shaft bottom, and lining is performed from top to bottom or from bottom to top through the main die, or sliding lining is performed, in the lining process, the necking die or expansion is driven through the demolding mechanism, the distributing mechanism uniformly distributes materials, the adaptability is good, multiple sets of templates are not needed for short-section and long-section vertical shaft lining, frequent installation and disassembly are not needed, the shortage is favorably eliminated, the quality control difficulty is reduced, the construction efficiency is improved, and the operation is simple and convenient.)

1. The utility model provides a throat construction equipment is suspended in midair in shaft concrete lining, characterized by: the demolding device comprises a module (1), a demolding mechanism (2), a material distributing mechanism (3) and a suspension mechanism (4); the die set (1), the distributing mechanism (3) and the suspension mechanism (4) are positioned on the same vertical axis, the suspension mechanism (4) is positioned at the upper part of the die set (1) and connected with the die set, the demolding mechanism (2) is connected with the die set (1), and the distributing mechanism (3) is positioned between the die set (1) and the suspension mechanism (4); the demoulding mechanism (2) drives a necking die (12) of the module (1) to perform necking or expanding.

2. The vertical shaft concrete lining suspension throat construction device according to claim 1, wherein: the module (1) comprises a circular cylinder with an upper opening and a lower opening, which is formed by connecting a main die (11) and a necking die (12); the main die (11) is formed by hinging two arc plates; the necking die (12) is formed by mutually sliding and matching two back slope mouth arc plates, and a sliding groove is arranged on the back slope mouth arc plate positioned on the inner side.

3. The vertical shaft concrete lining suspension throat construction device according to claim 1, wherein: the lower end of the main die (11) is connected with an outward inclined blade foot die (13), and an inclined chiseling-free template (14) is arranged along the outer side of the blade foot die (13); the blade foot mould (13) is of a conical barrel structure and is formed by connecting a plurality of inclined cutting edge arc plates.

4. The vertical shaft concrete lining suspension throat construction device according to claim 1, wherein: a hanging ring (15) is arranged at the edge of the upper end of the main die (11); an annular platform (16) is arranged in the upper end of the main die (11); a hanging ladder (17) is arranged in the main die (11).

5. The vertical shaft concrete lining suspension throat construction device according to claim 1, wherein: the demolding mechanism (2) comprises lug seats (22) connected with two ends of a double-head oil cylinder (21), the lug seats (22) are connected with two side faces of a connecting plate (23), and one end of the connecting plate (23) is connected with the necking die (12).

6. The vertical shaft concrete lining suspension throat construction device according to claim 1, wherein: the material distribution mechanism (3) comprises a plurality of movable joint slide drums (32) connected with the material distributor (31), and the movable joint slide drums (32) are inserted into the pouring hopper (33).

7. The vertical shaft concrete lining suspension throat construction device according to claim 1, wherein: the suspension mechanism (4) comprises a plurality of head sheaves (42) connected with the upper end of the derrick (41), and two ends of a steel cable (43) passing around the head sheaves (42) are respectively connected with the winch (44) and the module (1).

8. The method for installing a shaft concrete lining suspension throat construction device according to any one of claims 1 to 7, characterized by comprising the steps of:

SA1, installing a main die and a necking die to form a circular cylinder with an upper opening and a lower opening;

SA1-1, placing the hinged and combined main mold (11) on a workpiece platform, and mutually opening the two arc plates around a joint;

SA1-2, placing the necking die (12) on a workpiece platform, and respectively welding the two inverted groove arc plates with the two arc plate sides of the main die (11); during welding, the thick wall side of the arc plate of the inverted notch is contacted with the opening side of the main die (11);

SA2, the demoulding mechanism is installed, so that the demoulding mechanism (2) is connected with the necking die (12);

SA2-1, wherein one connecting plate (23) of the demoulding mechanism (2) is connected with the inner arc surface of one of the reverse slope opening arc plates of the necking die (12);

SA2-2, connecting the other connecting plate (23) of the demoulding mechanism (2) with the sliding surface of the other reverse slope arc plate of the necking die (12);

SA2-3, placing the two ear seats (22) on the upper side surface of the connecting plate (23) respectively, enabling the pin shaft to penetrate through the ear seats (22) and the connecting plate (23) to be matched with each other, and enabling the ear seats (22) to rotate around the pin shaft;

SA2-4, two arc plates of the main die (11) are pushed to rotate around the intersection point, so that the two inverted groove arc plates of the necking die (12) are close to each other, the two arc plates continue to rotate, and a connecting plate (23) positioned on the outer inverted groove arc plate gradually enters a sliding groove on the inner inverted groove arc plate; at the moment, the sliding surfaces of the two slope-falling port arc plates are in sliding contact with each other, and then the telescopic end of the double-head oil cylinder (21) is connected with the lug seat (22); after the installation is finished, the demolding mechanism (2) is positioned in the main mold (11);

SA3, checking, wherein the double-head oil cylinder (21) is connected with a checking hydraulic pump station;

SA3-1, starting an inspection hydraulic station, wherein a double-head oil cylinder (21) pushes two inverted groove arc plates of a necking die (12) to mutually contact and slide, and the necking die (12) is close to each other to form a necking and is far away from each other to form an expansion mouth under the limitation of a hinge point of a main die (11);

SA3-2, wherein, after necking, if the distance between the central lines of the two main dies (11) is smaller than the diameter of the main dies (11) and is within a set value range, the necking is qualified;

SA3-3, if the distance between the central lines of the two main dies (11) tends to be close to the diameter of the main dies (11) after the opening expansion, the opening expansion is qualified;

when the height of the die set (1) needs to be increased, the stacked multilayer main dies (11) are connected with each other to form expansion, and when the main dies (11) are stacked, the necking die (12) and the demolding mechanism (2) are synchronously added.

9. The construction method of the vertical shaft concrete lining suspension throat construction device according to any one of claims 1 to 7, characterized by comprising the steps of:

when the short section of the vertical shaft is tunneled, the vertical shaft is lined from top to bottom,

SB1, preparing, leveling a bottom plate of the shaft and leveling and correcting after the shaft is excavated and supported to the height of the lining section; in the step, the vertical shaft hanging scaffold is positioned in the shaft;

SB2, placing the cutting edge die, erecting a suspension mechanism (4) at the upper part of the shaft, and hoisting the cutting edge die (13) into the bottom of the shaft by a hoist (44);

SB3, paving a chiseling-free template, and annularly paving a chiseling-free template (14) on the outer side of the cutting edge die (13), wherein the hair surface of the chiseling-free template (14) faces the wall of the well bore;

SB4, binding a reinforcement cage, binding the reinforcement cage at the lining section in the shaft, wherein the reinforcement cage is an annular reinforcement cage, and a welding end head extending downwards is reserved at the lower end of the reinforcement cage;

SB5, installing a module, namely, hoisting the module (1) into a shaft by adopting a winch (44), and connecting the lower end of the main die (11) with the blade foot die (13); in the step, the reinforcement cage is positioned in a pouring space between the inner wall of the shaft and the outer wall of the module (1), and the necking die (12) is in an opening expansion state;

SB6, mounting a suspension ladder and a platform, mounting a ring-shaped platform (16) at the upper end in the main die (11), and suspending the suspension ladder (17) on the inner wall of the main die (11);

SB7, material distributing mechanism, mounting the distributor (31) of the material distributing mechanism (3) on the vertical shaft hanging scaffold, drawing the movable joint chute tube (32) to make the pouring funnel (33) extend to the upper part of the pouring space;

SB8, pouring, namely conveying concrete into the distributor (31), conveying the concrete into the pouring funnel (33) along the articulated chute (32), and vibrating after the concrete enters the pouring space from the pouring funnel (33); in the step, a plurality of pouring funnels (33) simultaneously discharge concrete into the pouring space uniformly and equivalently; before the initial setting of the concrete, the module (1) is kept in a stable suspension state;

SB9, demolding, starting the demolding mechanism (2), driving the necking die (12) to be necked by the double-head oil cylinder (21), and separating the main die (11) from the poured concrete;

SB10, eliminating defects, driving the main mold (11) to slowly lift by the winch (44), checking pouring defects and repairing the defects by an operator on the annular platform (16) or the suspension ladder (17), and maintaining after initial setting; in the step, the blade foot mould (13) is separated from the connection with the main mould (11) in the process that the main mould (11) ascends;

SB11, descending a lining, excavating the shaft again, descending the cutting edge die (13), descending the main die (11) by a winch (44) to the bottom of the shaft when the shaft excavation support is enough in a circulation progress or has a concrete lining condition, and driving the necking die (12) to expand by the double-head oil cylinder (21); and repeating SB 2-SB 10 to finish the short-section lining of the shaft in sequence.

10. The construction method of a shaft concrete lining suspension throat construction device according to claim 9, wherein when switching from shaft short-section tunneling to shaft long-section tunneling, it comprises the steps of:

when the long section of the shaft is tunneled, lining from bottom to top is adopted;

after the shaft excavation supporting is finished, a long-section lining section is formed; SB2 and SB 4-SB 8 are repeated to finish concrete lining of a first silo of the long section of the vertical shaft, and SB9 is repeated in time to demold so that the main mold (11) is separated from the blade foot mold (13);

lifting the main mold (11) and the material distribution mechanism (3), completing the next bin after the support correction is in place, performing concrete lining, and sequentially completing long-section lining of the vertical shaft from bottom to top;

or, tunneling the long section of the vertical shaft, and lining from bottom to top;

a lifting mechanism of a lifting frame is connected with the main die (11), demoulding is not needed, the lifting mechanism drives the main die (11) to slide and line lining from the bottom to the top, and long-section lining of the vertical shaft is continuously completed from bottom to top.

Technical Field

The invention belongs to the technical field of vertical shaft lining, and relates to a vertical shaft concrete lining suspension necking construction device and method.

Background

During shaft lining construction, in order to ensure construction safety, a shaft wall is supported in time, and simultaneously, a shaft wall concrete lining is carried out by adopting a long-section digging construction scheme or a short-section digging construction scheme according to the stable situation of surrounding rocks; the lining is usually carried out by layering and segmenting combined steel templates. The traditional vertical shaft concrete lining method has the advantages of more resource investment, frequent process conversion, limited construction speed, high quality control difficulty and relatively high engineering cost. The system analysis mainly has the following outstanding defects and shortcomings:

whether a short-section digging and building method or a long-section digging and building method is adopted, a plurality of sets of combined templates are required to be processed and manufactured, and the installation, the dismantling, the concrete pouring and the like are frequently carried out manually from bottom to top in a layering manner, so that the investment of human resources and material resources is high, the construction speed is restricted, and the engineering cost is increased.

The concrete layered construction has more parting joints, more concrete stubbles, more steel bar lap joints and great difficulty in engineering quality control; meanwhile, the concrete can be demoulded after being strengthened, construction defects cannot be found at any time in the construction process, effective treatment cannot be timely achieved, effective maintenance cannot be conducted on the concrete, and the quality control difficulty is increased.

The construction method comprises the following steps of installing and dismantling a formwork for multiple times, constructing concrete in a layered mode, frequently alternating working procedures and severely restricting the construction speed; meanwhile, the combined template has poor adaptability to short-section and long-short digging and building construction methods, and is not beneficial to rapid organization construction.

Disclosure of Invention

The invention aims to solve the technical problem of providing a vertical shaft concrete lining suspension necking construction device and a method, wherein a main die and a necking die are connected to form a module, the main die is of a hinged folding structure, the necking die is of a sliding surface sliding structure, a demolding mechanism is connected with the necking die, a suspension mechanism is positioned at the upper part of a vertical shaft of the main die, a distributing mechanism is positioned between the main die and the suspension mechanism, the suspension mechanism releases the main die to enter a shaft bottom, the main die is lined from top to bottom or lined from bottom to top or lined in a sliding manner, the demolding mechanism drives the necking die to be necked or expanded in the lining process, the distributing mechanism uniformly distributes materials, the adaptability is good, multiple sets of templates are not needed for lining short-section vertical shafts and long-section vertical shafts, frequent installation and disassembly are not needed, the shortage is favorably reduced, the quality control difficulty is reduced, the construction efficiency is improved, and the operation is simple and convenient.

In order to solve the technical problems, the invention adopts the technical scheme that: a vertical shaft concrete lining suspension necking construction device comprises a module, a demoulding mechanism, a material distribution mechanism and a suspension mechanism; the die set, the material distribution mechanism and the suspension mechanism are positioned on the same vertical axis, the suspension mechanism is positioned at the upper part of the die set and connected with the die set, the demolding mechanism is connected with the die set, and the material distribution mechanism is positioned between the die set and the suspension mechanism; the demoulding mechanism drives the necking die of the die set to reduce or expand.

The module comprises a circular cylinder with an upper opening and a lower opening, which is formed by connecting a main die and a necking die; the main mold is formed by mutually hinging two arc plates; the necking die is formed by mutually sliding and matching two back slope mouth arc plates, and a sliding groove is formed in the back slope mouth arc plate positioned on the inner side.

The lower end of the main die is connected with an outwards inclined blade foot die, and an inclined chiseling-free template is arranged along the outer side of the blade foot die; the blade foot mold is of a conical barrel structure and is formed by connecting a plurality of inclined cutting edge arc plates.

A hanging ring is arranged at the edge of the upper end of the main mold; an annular platform is arranged in the upper end of the main mold; a hanging ladder is arranged in the main die.

The demoulding mechanism comprises lug seats connected with two ends of the double-head oil cylinder, the lug seats are connected with two side faces of the connecting plate, and one end of the connecting plate is connected with the necking die.

The material distributing mechanism comprises a plurality of movable joint slide drums connected with the material distributor, and the movable joint slide drums are inserted into the pouring hopper.

The suspension mechanism comprises a plurality of head sheaves connected with the upper end of the derrick, and two ends of a steel cable bypassing the head sheaves are respectively connected with the winch and the module.

The installation method of the shaft concrete lining suspension necking construction device comprises the following steps:

SA1, installing a main die and a necking die to form a circular cylinder with an upper opening and a lower opening;

SA1-1, placing the hinged and combined main mold on a workpiece platform, and mutually opening two arc plates around a joint;

SA1-2, placing the necking die on a workpiece platform, and respectively welding the two inverted bevel arc plates with the two arc plates of the main die; during welding, the thick wall side of the inverted notch arc plate is contacted with the opening side of the main mold;

SA2, installing a demolding mechanism to connect the demolding mechanism with the necking die;

SA2-1, connecting one connecting plate of the demolding mechanism with the inner arc surface of one of the reverse slope mouth arc plates of the necking die;

SA2-2, connecting the other connecting plate of the demolding mechanism with the sliding surface of the other reverse slope opening arc plate of the necking die;

SA2-3, the two ear seats are respectively placed on the upper side surface of the connecting plate, the pin shaft penetrates through the ear seats and the connecting plate to be matched with each other, and the ear seats rotate around the pin shaft;

SA2-4, pushing the two arc plates of the main die to rotate around the intersection point, so that the two inverse bevel arc plates of the necking die approach each other, the two arc plates continue to rotate, and the connecting plate on the outer inverse bevel arc plate gradually enters the sliding groove on the inner inverse bevel arc plate; at the moment, the sliding surfaces of the two slope-falling port arc plates are in sliding contact with each other, and then the telescopic end of the double-head oil cylinder is connected with the lug seat; after the installation is finished, the demolding mechanism is positioned in the main mold;

SA3, inspecting, and connecting the double-head oil cylinder with an inspection hydraulic pump station;

SA3-1, starting a detection hydraulic station, wherein a double-end oil cylinder pushes two inverted bevel notch arc plates of a necking die to mutually contact and slide, the necking die is limited by a main die hinge point, the necking die is close to each other to form a necking, and the necking die is far away from each other to form an expansion port;

SA3-2, wherein, after necking, if the distance between the central lines of the two main dies is smaller than the diameter of the main dies and is within a set value range, the necking is qualified;

SA3-3, if the distance between the central lines of the two main dies tends to approach the diameter of the main dies after the opening expansion, the opening expansion is qualified;

when the height of the module needs to be increased, the stacked multilayer main dies are connected with each other to form expansion, and when the main dies are stacked, the necking die and the demolding mechanism are synchronously added.

The construction method of the vertical shaft concrete lining suspension necking construction device comprises the following steps:

when the short section of the vertical shaft is tunneled, the vertical shaft is lined from top to bottom,

SB1, preparing, leveling a bottom plate of the shaft and leveling and correcting after the shaft is excavated and supported to the height of the lining section; in the step, the vertical shaft hanging scaffold is positioned in the shaft;

SB2, placing the cutting edge die, erecting a suspension mechanism on the upper part of the shaft, and hoisting the cutting edge die into the bottom of the shaft by a hoist;

SB3, paving a chiseling-free template, and annularly paving the chiseling-free template outside the cutting edge die, wherein the hair surface of the chiseling-free template faces the wall of the well bore;

SB4, binding a reinforcement cage, binding the reinforcement cage at the lining section in the shaft, wherein the reinforcement cage is an annular reinforcement cage, and a welding end head extending downwards is reserved at the lower end of the reinforcement cage;

SB5, installing a module, namely, hoisting the module into the shaft by adopting a winch, and connecting the lower end of the main die with the blade foot die; in the step, the reinforcement cage is positioned in a pouring space between the inner wall of the shaft and the outer wall of the module, and the necking die is in an opening expansion state;

SB6, mounting the suspension ladder and the platform, mounting the annular platform at the upper end in the main die, and hanging the suspension ladder on the inner wall of the main die;

SB7, a material distributing mechanism, wherein a distributor of the material distributing mechanism is arranged on a vertical shaft hanging scaffold, and a movable joint chute tube is drawn to enable a pouring funnel to extend to the upper part of a pouring space;

SB8, pouring, namely conveying concrete into the distributor, conveying the concrete into a pouring funnel along the movable joint chute, and vibrating after the concrete enters a pouring space from the pouring funnel; in the step, a plurality of pouring funnels simultaneously discharge concrete into a pouring space uniformly and equivalently; before the initial setting of the concrete, the module is kept in a stable suspension state;

SB9, demolding, starting a demolding mechanism, driving a necking die to reduce the mouth by a double-head oil cylinder, and separating the main die from the poured concrete;

SB10, eliminating the defect, driving the main mold to slowly lift by the winch, checking the casting defect and repairing the defect by an operator on the annular platform or the suspension ladder, and maintaining after initial setting; in the step, the blade foot die is separated from the connection with the main die in the process of ascending the main die;

SB11, descending lining, excavating the shaft again, descending the blade foot mould, descending the main mould by a winch to the bottom of the shaft when the shaft excavation support is enough in a circulation progress or has a concrete lining condition, and driving the necking mould to expand by the double-head oil cylinder; and repeating SB 2-SB 10 to finish the short-section lining of the shaft in sequence.

The construction method of the vertical shaft concrete lining suspension necking construction device comprises the following steps when the vertical shaft short-section tunneling is switched to the vertical shaft long-section tunneling:

when the long section of the shaft is tunneled, lining from bottom to top is adopted;

after the shaft excavation supporting is finished, a long-section lining section is formed; SB2 and SB 4-SB 8 are repeated to finish the concrete lining of the first cabin of the long section of the vertical shaft, and SB9 is repeated in time to demold so that the main mold is separated from the blade foot mold;

lifting the main mold and the material distribution mechanism, completing the next bin after the support correction is in place, performing concrete lining, and sequentially completing long-section lining of the vertical shaft from bottom to top;

or, tunneling the long section of the vertical shaft, and lining from bottom to top;

a lifting mechanism of a lifting frame is connected with the main die, demolding is not needed, the main die is driven by the lifting mechanism to slide and line the shaft from the bottom to the top, and long-section lining of the shaft is continuously completed from bottom to top.

The beneficial effects of the invention are mainly embodied in that:

the main die and the necking die are connected to form a module, the main die is of a hinged structure, the necking die is of a sliding surface sliding structure, the demolding mechanism drives the necking die to realize necking and expanding, demolding is performed during necking, lining is performed during expanding, adaptability is good, and frequent disassembly and installation are not needed in a lining process.

The necking die always keeps sliding contact in the demolding process, and is limited by the connecting plate, so that the stability in the demolding process is improved.

When the vertical shaft is lined from top to bottom, the blade foot mold is used as a bottom mold, which is beneficial to connecting stubbles during layered pouring, is convenient for lapping reinforcing steel bars and leveling and correcting.

The scabbling-free template paved outside the blade foot mold forms a rough pouring surface after pouring, and scabbling is not needed in the downward lining process, so that the construction precision is favorably improved.

In the process of ascending or descending by using the main mold, the defects of the poured concrete which is not initially set are checked and repaired, so that the construction and repair are facilitated, and the pouring quality is improved.

The demoulding mechanism is driven by a double-head oil cylinder, an oil pipe is connected with a hydraulic station by a hose, and the hydraulic station is arranged on a vertical shaft hanging scaffold outside or in a well, so that the overall weight of the master mould is reduced and the space is saved.

A pipeline of the distributor communicated with the pouring space adopts an articulated chute, and the articulated chute uniformly equally conveys materials to the pouring space, so that the stability in the pouring process is improved, and the deviation of the main mold to one side is avoided.

The long section of shaft when lining cutting from bottom to top, need not sword foot mould and exempt from the chisel hair template, adopts from the shaft bottom to the layering lining cutting, accomplishes long section lining cutting step by step, further improves the efficiency of construction.

When lining the long section of the shaft from bottom to top, the hoisting frame can be directly connected with the main mold, so that the main mold slides upwards to line the long section of the shaft from bottom to top, and the integral casting of the shaft is completed at one time.

Drawings

The invention is further described with reference to the following figures and examples:

fig. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic front view of the module of the present invention.

Fig. 3 is a schematic top view of fig. 2.

Fig. 4 is a schematic structural view of the connection of the necking die and the demolding mechanism of the present invention.

Fig. 5 is a front view of fig. 4.

FIG. 6 is a schematic structural view of the connection between the arc plate of the reverse groove and the connecting plate outside the necking die of the present invention.

FIG. 7 is a schematic view of the connection structure of the back-slope arc plate and the connecting plate inside the necking die of the present invention.

Fig. 8 is a schematic structural view of the suspension mechanism of the present invention.

FIG. 9 is a top down view of the present invention.

Figure 10 is a top view of the lining of figure 9.

FIG. 11 is a bottom-up lining state diagram of the present invention using a hoisting frame.

In the figure: the device comprises a module 1, a main die 11, a necking die 12, a blade foot die 13, a chiseling-free template 14, a hanging ring 15, an annular platform 16, a hanging ladder 17, a demoulding mechanism 2, a double-head oil cylinder 21, an ear seat 22, a connecting plate 23, a material distributing mechanism 3, a material distributor 31, an articulated chute 32, a pouring hopper 33, a suspension mechanism 4, a derrick 41, a head sheave 42, a steel cable 43 and a winch 44.

Detailed Description

As shown in fig. 1 to 11, a shaft concrete lining suspension necking construction device includes a module 1, a demoulding mechanism 2, a material distributing mechanism 3 and a suspension mechanism 4; the die set 1, the material distribution mechanism 3 and the suspension mechanism 4 are positioned on the same vertical axis, the suspension mechanism 4 is positioned at the upper part of the die set 1 and connected with the die set 1, the demoulding mechanism 2 is connected with the die set 1, and the material distribution mechanism 3 is positioned between the die set 1 and the suspension mechanism 4; the demoulding mechanism 2 drives the necking die 12 of the module 1 to neck or expand. When the lining device is used, the main die 11 is lined from top to bottom or lined from bottom to top or is lined in a sliding mode, the demolding mechanism 2 drives the necking die 12 to be necked or expanded in the lining process, the material distributing mechanism 3 uniformly distributes materials, the adaptability is good, the short-section vertical shaft lining and the long-section vertical shaft lining do not need multiple sets of templates, frequent mounting and dismounting are not needed, the defect elimination is facilitated, the quality control difficulty is reduced, the construction efficiency is improved, and the lining device is simple and convenient to operate.

In a preferred scheme, the module 1 comprises a circular cylinder body which is formed by connecting a main die 11 and a necking die 12 and is provided with an upper opening and a lower opening; the main mold 11 is formed by hinging two arc plates; the necking die 12 is formed by mutually sliding and matching two back slope mouth arc plates, and a sliding groove is arranged on the back slope mouth arc plate positioned on the inner side. When the mould set is used, the mould set 1 is positioned in a shaft, a pouring space is formed between the outer wall of the main mould 11 and a shaft wall, and a reinforcement cage is positioned in the pouring space; the main mold 11 is formed by hinging two arc plates, and rotates at a hinge point when necking or expanding; when the inner side of the necking die 12 is matched with the outer side of the necking die in a sliding way, the sliding groove on the inner side of the necking die is matched with the connecting plate 23 of the demoulding mechanism 2 for limiting.

Preferably, the height of the main mold 11 determines the height of the necking die 12, and a plurality of demoulding mechanisms 2 are correspondingly configured as the height is higher, so that a plurality of connecting plates 23 are matched with a plurality of sliding grooves on an inner side reverse slope arc plate, and the stability and the structural strength during necking and expanding are improved.

In a preferable scheme, the lower end of the main die 11 is connected with an outwards inclined blade foot die 13, and an inclined chiseling-free template 14 is arranged along the outer side of the blade foot die 13; the blade foot mold 13 is a tapered cylindrical structure and is formed by connecting a plurality of inclined cutting edge arc plates. When the cutting edge die is used, the connecting stubbles are formed when the cutting edge die 13 is lined from top to bottom in a segmented mode, the scabbling-free die plate 14 is used for forming the rough surface at the connecting stubbles, and the scabbling of poured concrete is not needed when the cutting edge die is lined upwards, so that the construction efficiency is improved.

Preferably, when lining from bottom to top, the blade edge mold 13 is used as a bottom mold during casting, and the larger end of the tapered cylinder body faces downwards.

Preferably, the tapered cylinder of the blade foot mold 13 is formed by connecting a plurality of blade arc plates by fasteners, and after the lining from bottom to top is completed, the tapered cylinder is favorable for disassembly, transportation and recycling.

Preferably, the chiseling-free formwork 14 is an arc-shaped splicing plate, the rough surface faces the casting space, and the rough surface is formed on the concrete surface at the joint after casting.

In a preferred scheme, a hanging ring 15 is arranged at the edge of the upper end of the main die 11; an annular platform 16 is arranged in the upper end of the main die 11; a hanging ladder 17 is arranged inside the main mold 11. In use, the suspension ring 15 is connected to the wire rope 43 of the suspension mechanism 4, the annular platform 16 is used for an operator to stand, an operator operating space is provided, and the suspension ladder 17 is used for the operator to climb.

In a preferred scheme, the demoulding mechanism 2 comprises lug seats 22 connected with two ends of a double-head oil cylinder 21, the lug seats 22 are connected with two side surfaces of a connecting plate 23, and one end of the connecting plate 23 is connected with the necking die 12. During the use, double-end cylinder 21 is connected with the hydraulic pressure station, and the hydraulic pressure station sets up outside the shaft or in the shaft, and hydraulic pressure station control double-end cylinder 21 opens and stops, and double-end cylinder 21 drives two back slope mouth arcs of necking die 12 and slides each other, realizes necking down or bloated mouthful, and linking plate 23 is spacing to necking die 12.

In a preferred embodiment, the distributing mechanism 3 comprises a plurality of articulated chutes 32 connected to the distributor 31, the articulated chutes 32 extending into the casting hopper 33. When the concrete pouring device is used, after concrete is conveyed to the distributor 31, the distributor 31 uniformly distributes the concrete, the concrete enters the pouring funnel 33 along the movable joint chute 32, and the pouring funnel 33 is discharged into a pouring space.

Preferably, the distributor 31 is an electro-hydraulic three-way distributor, and the three distribution ports are respectively connected with the three movable joint chutes 32, so that concrete slurry can be uniformly distributed into the casting space, and the lining precision is prevented from being reduced due to the inclination of the main mold 11 in the casting process.

In the preferred embodiment, the suspension mechanism 4 comprises a plurality of head sheaves 42 connected to the upper end of the derrick 41, and the two ends of the wire rope 43 passing around the head sheaves 42 are connected to the winch 44 and the module 1, respectively. When the derrick 41 is used, the derrick is positioned at the wellhead outside a shaft, the steel cable 43 passes through the head sheave 42, two ends of the steel cable 43 are respectively connected with the winch 44 and the hanging rings 15 on the main die 11, the winch 44 winds the steel cable 43 to release the main die 11, and the head sheave 42 synchronously rolls along with the winding of the steel cable 43, so that the lifting resistance is reduced.

In a preferred embodiment, the method for installing the shaft concrete lining suspended throat construction device comprises the following steps:

SA1, installing a main die and a necking die to form a circular cylinder with an upper opening and a lower opening;

SA1-1, placing the main mold 11 after hinge combination on a workpiece platform, and mutually opening two arc plates around a joint;

SA1-2, placing the necking die 12 on a workpiece platform, and respectively welding the two inverted bevel arc plates with the two arc plates of the main die 11; during welding, the thick wall side of the arc plate of the inverted notch is contacted with the opening side of the main die 11;

SA2, the demoulding mechanism is installed to connect the demoulding mechanism 2 with the necking die 12;

SA2-1, one of the connecting plates 23 of the demoulding mechanism 2 is connected with the inner arc surface of one of the reverse slope mouth arc plates of the necking die 12;

SA2-2, connecting the other connecting plate 23 of the demoulding mechanism 2 with the sliding surface of the other reverse slope arc plate of the necking die 12;

SA2-3, the two ear seats 22 are respectively placed on the upper side surface of the connecting plate 23, the pin shaft penetrates through the ear seats 22 and the connecting plate 23 to be matched with each other, and the ear seats 22 rotate around the pin shaft;

SA2-4, pushing the two arc plates of the main die 11 to rotate around the intersection point, so that the two back-beveling arc plates of the necking die 12 approach each other, the two arc plates continue to rotate, and the connecting plate 23 on the outer back-beveling arc plate gradually enters the sliding groove on the inner back-beveling arc plate; at the moment, the sliding surfaces of the two slope-falling port arc plates are in sliding contact with each other, and then the telescopic end of the double-head oil cylinder 21 is connected with the lug seat 22; after the installation is finished, the demolding mechanism 2 is positioned inside the main mold 11;

SA3, inspecting, and connecting the double-head oil cylinder 21 with an inspection hydraulic pump station;

SA3-1, starting a detection hydraulic station, wherein the double-head oil cylinder 21 pushes two inverted bevel arc plates of the necking die 12 to mutually contact and slide, the necking die 12 is close to each other to form a necking and is far away from each other to form an expansion port under the limitation of a hinge point of the main die 11;

SA3-2, wherein, after necking, if the distance between the central lines of the two main dies 11 is smaller than the diameter of the main dies 11 and is within a set value range, the necking is qualified;

SA3-3, if the distance between the central lines of the two main dies 11 tends to approach the diameter of the main dies 11 after the opening expansion, the opening expansion is qualified;

when the height of the die set 1 needs to be increased, the stacked multi-layer main dies 11 are connected with each other to form an extension, and when the main dies 11 are stacked, the necking die 12 and the demolding mechanism 2 are synchronously added. The method is beneficial to completing assembly and test in a factory building, disassembling and numbering after inspection, and then transferring to a construction site for assembly, so that the condition that a large amount of early-stage preparation time is consumed for on-site manufacturing and installation is avoided.

In a preferred embodiment, the construction method of the shaft concrete lining suspended throat construction device as described above includes the steps of:

when the short section of the vertical shaft is tunneled, the vertical shaft is lined from top to bottom,

SB1, preparing, leveling a bottom plate of the shaft and leveling and correcting after the shaft is excavated and supported to the height of the lining section; in the step, the vertical shaft hanging scaffold is positioned in the shaft;

SB2, placing the cutting edge model, erecting a suspension mechanism 4 on the upper part of the shaft, and hoisting the cutting edge model 13 into the bottom of the shaft by a hoisting machine 44;

SB3, paving a chiseling-free template, and annularly paving a chiseling-free template 14 outside the cutting edge die 13, wherein the hair surface of the chiseling-free template 14 faces the wall of the well bore;

SB4, binding a reinforcement cage, binding the reinforcement cage at the lining section in the shaft, wherein the reinforcement cage is an annular reinforcement cage, and a welding end head extending downwards is reserved at the lower end of the reinforcement cage;

SB5, installing a module, namely, hoisting the module 1 into the shaft by adopting a winch 44, and connecting the lower end of the main die 11 with the blade foot die 13; in the step, the reinforcement cage is positioned in a pouring space between the inner wall of the shaft and the outer wall of the module 1, and the necking die 12 is in an opening expansion state;

SB6, mounting the suspension ladder and the platform, mounting the annular platform 16 at the upper end in the main die 11, and suspending the suspension ladder 17 on the inner wall of the main die 11;

SB7, a material distributing mechanism, namely, installing the distributor 31 of the material distributing mechanism 3 on a vertical shaft hanging scaffold, and drawing the movable joint chute tube 32 to enable the pouring funnel 33 to extend to the upper part of the pouring space;

SB8, pouring, namely conveying concrete into the distributor 31, conveying the concrete into the pouring funnel 33 along the movable joint chute 32, and vibrating after the concrete enters the pouring space from the pouring funnel 33; in this step, a plurality of pouring funnels 33 simultaneously discharge concrete into the pouring space uniformly and equivalently; before the initial setting of the concrete, the module 1 is kept in a stable suspension state;

SB9, demoulding, starting the demoulding mechanism 2, driving the necking die 12 to be necked by the double-head oil cylinder 21, and separating the main die 11 from the poured concrete;

SB10, eliminating the defect, driving the main mold 11 to slowly lift by the winch 44, checking the casting defect and repairing the defect by an operator on the annular platform 16 or the suspension ladder 17, and maintaining after initial setting; in this step, in the process of ascending the main mold 11, the blade foot mold 13 is disconnected from the main mold 11;

SB11, descending the lining, excavating the shaft again, descending the cutting edge die 13, descending the main die 11 by the winch 44 to the bottom of the shaft when the shaft excavation support is enough in a circulation progress or has a concrete lining condition, and driving the necking die 12 to expand by the double-end oil cylinder 21; and repeating SB 2-SB 10 to finish the short-section lining of the shaft in sequence. The method is beneficial to quickly constructing the short section of the vertical shaft, avoids lining by using templates with various specifications, reduces frequent disassembly and assembly in the lining process, is beneficial to controlling the construction quality and reduces the cost.

In a preferred embodiment, the construction method of the vertical shaft concrete lining suspension necking construction device comprises the following steps when the vertical shaft short-section tunneling is switched to the vertical shaft long-section tunneling:

when the long section of the shaft is tunneled, lining from bottom to top is adopted;

after the shaft excavation supporting is finished, a long-section lining section is formed; SB2 and SB 4-SB 8 are repeated to finish the concrete lining of the first silo of the long section of the vertical shaft, and SB9 is repeated in time to demold so that the main die 11 is separated from the blade foot die 13;

lifting the main mold 11 and the distributing mechanism 3, completing the next bin after the supporting and correcting are in place, performing concrete lining, and sequentially completing long-section lining of the vertical shaft from bottom to top; the method aims at the long section of the vertical shaft, the lining is layered from bottom to top, the lining except the first bin at the bottom of the shaft needs the cutting edge die 13, and the cutting edge die 13 is not needed at the rest layered positions, so that the lining efficiency is further improved.

Preferably, the construction of the short section of the vertical shaft and the long section of the vertical shaft from top to bottom and from bottom to top is combined, so that the lining efficiency and the construction quality of the whole vertical shaft are improved, and the problem of frequent disassembly and assembly during the integral lining of the vertical shaft is solved.

Or, tunneling the long section of the vertical shaft, and lining from bottom to top;

a lifting mechanism of a lifting frame is connected with the main die 11, demoulding is not needed, the lifting mechanism drives the main die 11 to slide and line the shaft from the bottom to the top, and long-section lining of the shaft is continuously completed from bottom to top. The method is beneficial to pouring concrete while the main die 11 slides, finishing lining at one time, reducing the problems of more concrete stubbles, more parting joints and more steel bar lap joints, facilitating maintenance, reducing the quality control difficulty and quickly constructing lining.

Preferably, before lifting by using the lifting frame, two connecting plates 23 connected with the necking die 12 are fixed in a lap joint mode, the connecting plates are in lap joint with the upper side and the lower side of the connecting plates 23, the fasteners penetrate through the connecting plates and the connecting plates 23 to be connected and fixed, after the fixing, the main die 11 and the necking die 12 are combined into a cylinder with a stable structure, and the main die 11 does not rotate around a hinge point any more.

Preferably, the front end of the telescopic rod of the lifting mechanism is connected with a support frame, the support frame is rigidly connected and fixed with the main die 11, the telescopic rod is connected with the distributor 31, and when the lifting mechanism is lifted, the main die 11 and the distributor 31 are lifted synchronously.

Preferably, the supporting frame is a hollow frame structure, and the connecting column passes through the frame to be rigidly connected with the main mold 11; before connection, the hanging ring 15 is firstly detached and then connected with the hanging ring connecting hole on the main die 11 through the connecting column.

The above embodiments are merely preferred technical solutions of the present invention, and should not be construed as limitations of the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the patent of the invention should be defined by the claims and the equivalents of the technical features of the claims. I.e., equivalent alterations and modifications within the scope and range of equivalents of the invention, are also encompassed by the present patent.