CN213101733U

CN213101733U - Novel subway construction shield constructs machine defeated material stirring device

Info

Publication number: CN213101733U
Application number: CN202021141734.9U
Authority: CN
Inventors: 王文涛; 王毅军; 王海; 李奕扬
Original assignee: China Railway 12th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-05-04
Anticipated expiration: 2030-06-19

Abstract

The utility model belongs to the technical field of the subway construction, concretely relates to novel subway construction shield constructs machine defeated material agitating unit, the uneven and insufficient problem of stirring of polymer modifier ratio in the shield construction has been solved, which comprises a frame, the frame inboard is fixed with the support that the level set up, frame and support whole are E style of calligraphy structure, the top of support is provided with water tank and polymer bin respectively, there is first conveyor water tank bottom through the pipe intercommunication, there is second conveyor polymer bin bottom through the pipe intercommunication, first conveyor and second conveyor are connected with the mixing box respectively, the top of mixing box is located and is provided with the motor between first conveyor and second conveyor, the output of motor is connected with first pivot, be provided with agitating unit in the first pivot, the mixing box setting is on the bottom frame and the mixing box sub-unit connection has the delivery pump. The utility model discloses can accomplish the even stirring to the modifier in the mixing box by the efficient.

Description

Novel subway construction shield constructs machine defeated material stirring device

Technical Field

The utility model belongs to the technical field of the subway construction, concretely relates to novel subway construction shield constructs machine defeated material stirring device.

Background

Shields have become an important component of subway construction. In order to continuously optimize the shield construction performance, the improvement of the muck is indispensable. Different modifying agents are usually adopted aiming at different stratums, and the modifying agents in shield construction are generally foam and bentonite. But the novel polymer modifier is gradually tried for special formations, such as water-rich formations, silt formations, sand layers and the like, and certain effect is gradually achieved.

At present, the addition of the polymer modifier in the shield is realized by adopting a material conveying and stirring device. The existing material conveying stirring device is mostly a barrel with simple stirring, the top end of the barrel is connected with a water inlet pipe and a polymer inlet pipe, the bottom of the barrel is connected with a conveying device, the material conveying stirring device with the structure needs an operator to control the proportion of clear water and polymer through a controller, or clear water is poured in firstly, then the polymer is poured in, the operation mode not only wastes manpower, but also wastes time, and the existing stirring device can only stir on a plane, the stirring effect is not good, the clear water and the polymer are hardly stirred uniformly, so that the construction efficiency and the engineering quality are influenced.

Disclosure of Invention

The utility model discloses a solve polymer modifier ratio inequality and stir insufficient problem in the shield construction, provide a novel subway construction shield constructs machine defeated material stirring device.

The utility model discloses a realize through following technical scheme: the utility model provides a novel subway construction shield constructs machine defeated material agitating unit, which comprises a frame, the inboard support that is fixed with the level and sets up of frame, frame and the whole E style of calligraphy structure that is of support, the top of support is provided with water tank and polymer bin respectively, there is first conveyor bottom the water tank through the pipe intercommunication, there is second conveyor bottom the polymer bin through the pipe intercommunication, be connected with the horizontal pole between first conveyor and second conveyor, horizontal pole upper portion is connected with dead lever one, dead lever one and support bottom fixed connection, first conveyor and second conveyor are connected with the mixing box respectively, the top of mixing box is located and is provided with the motor between first conveyor and second conveyor, the output of motor is connected with first pivot, be provided with agitating unit in the first pivot, the mixing box setting is on the bottom frame and the mixing box sub-unit connection has the delivery pump.

The first conveying device is the same as the second conveying device in structure, the first conveying device comprises a material storage box, the material storage box is of a hollow structure with an upper opening and a lower opening and a circular cross section, a second rotating shaft carrying a stepping motor is arranged on the axis of the material storage box, a ring is arranged on the outer side of the second rotating shaft, four connecting pieces evenly distributed along 360-degree circumference are arranged on the ring at intervals, the width of each connecting piece is the same as the height of the material storage box, and a sealing block is fixed at the position where the end part of each connecting piece contacts with the material storage box.

The stirring device comprises a plurality of lantern rings, the lantern rings are sleeved on the first rotating shaft at equal intervals, two sides of each lantern ring are respectively provided with a second fixing rod and a third fixing rod, included angles between the second fixing rod and the third fixing rod and the first rotating shaft are the same, the length of the second fixing rod is larger than that of the third fixing rod, the second fixing rod is connected with the first blade, and the third fixing rod is connected with the second blade.

The included angle between the second fixing rod and the third fixing rod and the first rotating shaft is 30-45 degrees, and the first blade and the second blade are horizontally arranged.

The top of the water tank and the top of the polymer storage tank are both provided with feed inlets.

Compared with the prior art, the utility model has the advantages that:

the utility model discloses a knot reasonable in design, the step motor through first conveyor, second conveyor cooperation computer micro-control can accurately keep certain proportion to carry clear water and polymer to mixing box in to further realize different planar stirs through the agitating unit in the mixing box, thereby the even stirring of modifier in to mixing box is accomplished to the efficient more. Tests prove that the modifier which is strictly proportioned and fully stirred plays an important role in shield construction.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the first conveying device in fig. 1.

In the figure: 1-frame, 2-bracket, 3-water tank, 4-polymer storage tank, 5-first conveying device, 6-second conveying device, 7-cross bar, 8-fixed rod I, 9-mixing box, 10-motor, 11-first rotating shaft, 12-lantern ring, 13-fixed rod II, 14-fixed rod III, 15-blade I, 16-blade II, 17-conveying pump, 18-storage box, 19-second rotating shaft, 20-circular ring, 21-connecting piece and 22-sealing block.

Detailed Description

The utility model is further explained by referring to fig. 1 and fig. 2, a novel material conveying and stirring device for a subway construction shield machine, which comprises a frame 1, a horizontally arranged bracket 2 is fixed at the inner side of the frame 1, the frame and the bracket 2 are integrally in an E-shaped structure, a water tank 3 and a polymer storage tank 4 are respectively arranged at the top of the bracket 2, a first conveying device 5 is communicated with the bottom of the water tank 3 through a conduit, a second conveying device 6 is communicated with the bottom of the polymer storage tank 4 through a conduit, a cross rod 7 is connected between the first conveying device 5 and the second conveying device 6, a first fixing rod 8 is connected at the upper part of the cross rod 7, the first fixing rod 8 is fixedly connected with the bottom of the bracket 2, the first conveying device 5 and the second conveying device 6 are respectively connected with a mixing box 9, a motor 10 is arranged between the first conveying device 5 and the second conveying device 6 at the top of the mixing box 9, a stirring device is arranged on the first rotating shaft 11, the mixing box 9 is arranged on the bottom frame 1, and the lower part of the mixing box 9 is connected with a delivery pump 17.

The structure of the first conveying device 5 is the same as that of the second conveying device 6, the first conveying device 5 comprises a material storage box 18, the material storage box 18 is of a hollow structure with an upper opening and a lower opening and a circular cross section, a second rotating shaft 19 carrying a stepping motor is arranged at the axis of the material storage box 18, a circular ring 20 is arranged on the outer side of the second rotating shaft 19, four connecting pieces 21 uniformly distributed along a 360-degree circumference are arranged on the circular ring 20 at intervals, the width of each connecting piece 21 is the same as the height of the material storage box 18, and a sealing block 22 is fixed at the position where the end part of each connecting piece 21 is in contact with the material storage box 18.

The working process of the utility model is as follows:

first, the water tank 3 and the polymer storage tank 4 store purified water and polymer powder, respectively. When the shield machine is not in a construction state, the second rotating shaft 19 carrying the stepping motor is in a static state, and the modifier conveying work is not carried out.

When the shield machine works, according to a preset modifier proportioning ratio, the stepping motors in the first conveying device 5 and the second conveying device 6 are respectively controlled by a computer to work, and the two stepping motors drive the second rotating shaft 19 to rotate according to self rotating speeds. When the second rotating shaft 19 rotates, the water and the powder in the water tank 3 and the polymer storage tank 4 enter the material boxes 18 of the first conveying device 5 and the second conveying device 6 respectively and enter the mixing tank 9 in proportion during continuous rotation.

At the same time, the stirring device in the mixing tank 9 starts to work, and the water and the polymer powder are uniformly stirred. Because the stirring device comprises a plurality of lantern rings 12, the lantern rings 12 are sleeved on the first rotating shaft 11 at equal intervals, two sides of each lantern ring 12 are respectively provided with a second fixing rod 13 and a third fixing rod 14, included angles between the second fixing rod 13 and the third fixing rod 14 and the first rotating shaft 11 are the same, the length of the second fixing rod 13 is larger than that of the third fixing rod 14, the included angles between the second fixing rod 13 and the third fixing rod 14 and the first rotating shaft 11 are 30-45 degrees, and the first blade 15 and the second blade 16 are horizontally arranged. The utility model discloses can change under the accurate prerequisite of ratio and accomplish the two even stirring.

Claims

1. The utility model provides a novel subway construction shield constructs machine defeated material stirring device which characterized in that: comprises a frame (1), a horizontally arranged support (2) is fixed on the inner side of the frame (1), the frame and the support (2) are integrally E-shaped, a water tank (3) and a polymer storage tank (4) are respectively arranged at the top of the support (2), the bottom of the water tank (3) is communicated with a first conveying device (5) through a conduit, the bottom of the polymer storage tank (4) is communicated with a second conveying device (6) through a conduit, a cross rod (7) is connected between the first conveying device (5) and the second conveying device (6), the upper part of the cross rod (7) is connected with a first fixing rod (8), the first fixing rod (8) is fixedly connected with the bottom of the support (2), the first conveying device (5) and the second conveying device (6) are respectively connected with a mixing box (9), a motor (10) is arranged between the first conveying device (5) and the second conveying device (6) at the top of the mixing box, the output end of the motor (10) is connected with a first rotating shaft (11), a stirring device is arranged on the first rotating shaft (11), the mixing box (9) is arranged on the bottom frame (1), and the lower part of the mixing box (9) is connected with a conveying pump (17).

2. The novel material conveying and stirring device for the subway construction shield machine as claimed in claim 1, wherein: the structure of the first conveying device (5) is the same as that of the second conveying device (6), the first conveying device (5) comprises a material storage box (18), the material storage box (18) is of a hollow structure with an upper opening and a lower opening and a circular cross section, a second rotating shaft (19) carrying a stepping motor is arranged at the axis of the material storage box (18), a circular ring (20) is arranged on the outer side of the second rotating shaft (19), four connecting pieces (21) uniformly distributed along a 360-degree circumference are arranged on the circular ring (20) at intervals, the width of each connecting piece (21) is the same as the height of the material storage box (18), and a sealing block (22) is fixed at the position where the end part of each connecting piece (21) is in contact with the material storage box.

3. The novel material conveying and stirring device for the subway construction shield machine as claimed in claim 1, wherein: the stirring device comprises a plurality of lantern rings (12), the lantern rings (12) are sleeved on the first rotating shaft (11) at equal intervals, two sides of each lantern ring (12) are respectively provided with a second fixing rod (13) and a third fixing rod (14), included angles between the second fixing rod (13) and the third fixing rod (14) and the first rotating shaft (11) are the same, the length of the second fixing rod (13) is larger than that of the third fixing rod (14), the second fixing rod (13) is connected with a first blade (15), and the third fixing rod (14) is connected with a second blade (16).

4. The novel material conveying and stirring device for the subway construction shield machine as claimed in claim 3, wherein: the included angle between the fixed rod II (13) and the fixed rod III (14) and the first rotating shaft (11) is 30-45 degrees, and the blade I (15) and the blade II (16) are horizontally arranged.

5. The novel material conveying and stirring device for the subway construction shield machine as claimed in claim 1, wherein: the top parts of the water tank (3) and the polymer storage tank (4) are provided with feed inlets.