Wet volume weight and fluidity weighing device of light polymer for sealing pressure chamber of shield tunneling machine

Abstract

The utility model relates to the technical field of urban rail transit devices, in particular to a light polymer wet volume weight and fluidity weighing machine for sealing a pressure chamber of a shield tunneling machine, which comprises a box body, a material storage cavity and an inner cavity are arranged in the box body, the inner cavity is positioned below the material storage cavity, a first baffle plate and a second baffle plate are arranged in the inner cavity, and the first baffle plate and the second baffle plate are arranged in the box body. The end faces of the push rods are fixedly connected with transmission plates, the transmission plates are located on the outer side of the box body, the push rods are in sliding connection with the box body, a cover plate is arranged above the box body, a through pipe is arranged at the center of the surface of the cover plate, a negative pressure fan is arranged in the through pipe, and a bearing box is arranged at the bottom of the box body; the interior of the bearing box is communicated with the storage cavity; the device has the beneficial effects that the wet volume weight and the fluidity of the light polymer in construction can be inspected, the requirements of engineering construction can be better met, and the onsite occurrence of jerry work and material reduction is less.

Description

TECHNICAL FIELD

[0001] The utility model relates to urban rail transit device technical field, concretely is light polymer wet capacity and flow degree weighing apparatus for shield machine pressure cabin sealing. BACKGROUND

[0002] In earth pressure balance shield construction, the actually excavated soil body generally cannot satisfy the requirement of plastic flow state, at this time, it is necessary to adopt soil body improvement technology, that is, injecting mud, foam and other improvement agents into the excavation face, soil pressure cabin and screw conveyor to form light polymer to maintain the stability of the excavation face, realize earth pressure balance shield propulsion, and simultaneously facilitate reducing equipment load, reducing ground settlement and improving tunneling speed.

[0003] In the prior art, in the traditional light polymer construction process, the transportation of the mixture and the control of the mixing ratio are often the premise of quality assurance, in order to improve the overall construction level, ensure that the on-site construction personnel can construct according to the mixing ratio, and strengthen the quality control in the construction process, which will greatly improve the overall construction level.

[0004] Therefore, a new device is urgently needed to solve the quality control level in the existing construction process, to detect the wet capacity and flow degree of the light polymer in the construction, to better meet the requirements of engineering construction, and to less occur the phenomenon of "shoddy", for this purpose, the utility model provides a light polymer wet capacity and flow degree weighing apparatus for shield machine pressure cabin sealing to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a light polymer wet capacity and flow degree weighing apparatus for shield machine pressure cabin sealing to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a light polymer wet capacity and flow degree weighing apparatus for shield machine pressure cabin sealing, comprising: a box body, a storage cavity and an inner cavity are formed in the box body, the inner cavity is located below the storage cavity, a first baffle and a second baffle are arranged in the inner cavity, the surfaces of the first baffle and the second baffle are fixedly connected with push rods, the push rods are fixedly connected with transmission plates at the end faces, the transmission plates are located outside the box body, and the push rods and the box body are in sliding connection;

[0007] A cover plate is arranged above the box body, a through pipe is arranged at the center of the surface of the cover plate, a negative pressure fan is arranged in the through pipe, a bearing box is arranged at the bottom of the box body, and the bearing box is in communication with the storage cavity;

[0008] The side of the box is connected with a middle vertical pipe, a ball valve is arranged in the middle vertical pipe, the ball valve is connected with a rotary valve, one end of the middle vertical pipe is connected with one end of a flow tester body through a flange, and the other end of the flow tester body is connected with a feeding pipe through a flange.

[0009] Preferably, the middle vertical pipe and the storage cavity are communicated, the rotary valve is arranged outside the middle vertical pipe, the rotary valve controls opening and closing of the ball valve, the diameter of the ball valve is within 1mm of the middle vertical pipe, the flange is a nine-hole flange, and the bottom of the storage cavity is inclined.

[0010] Preferably, side frames are fixed to the outer walls of the two sides of the box, side ears are fixed to the outer walls of the two sides of the cover plate, the side ears are inserted into the side frames and are fixed through bolts.

[0011] Preferably, a convex ring plate is fixed to the lower surface of the cover plate, a sealing ring is fixed to the bottom of the convex ring plate, an inner groove is formed in the upper surface of the box, the convex ring plate is inserted into the inner groove, and the sealing gasket and the inner wall of the inner groove are in contact and abut tightly.

[0012] Preferably, guide holes are formed in the four ends of the surface of the cover plate, handles are fixed to the upper surface of the cover plate, the handles are provided in two groups, the two groups of handles are symmetrically distributed about the pipe, a guide rod is fixed to the bottom end of the upper surface of the box, the end surface of the guide rod is chamfered, and the outer wall of the guide rod and the inner wall of the guide hole are in sliding connection.

[0013] Preferably, the opposite surfaces of the first baffle and the second baffle are provided with comb-shaped structures and are matched with each other, sliding strips are fixed to the lower surfaces of the first baffle and the second baffle, the sliding strips are provided in a plurality of groups, the plurality of groups of sliding strips are uniformly distributed on the lower surfaces of the baffles, a plurality of uniformly distributed sliding grooves are formed in the bottom wall of the inner cavity, and the sliding strips and the sliding grooves are in sliding connection.

[0014] Preferably, the transmission plate is in the shape of a square plate, support seats are fixed to the two sides of the box, the support seats are in the shape of an L-shaped section, air cylinders are arranged on the support seats, the air cylinders are provided in a plurality of groups, the plurality of groups of air cylinders are uniformly distributed on the support seats, and the output ends of the air cylinders are fixedly connected with the transmission plate.

[0015] Preferably, the box is made of an acrylic plate, and a scale table is arranged on the outer wall of the box.

[0016] Preferably, a weighing sensor is arranged at the bottom of the inner side of the bearing box, a display screen is arranged on the outer wall of the bearing box, the weighing sensor and the display screen are electrically connected, and a discharging opening is arranged on the surface of the bearing box.

[0017] Compared with the prior art, the box has the advantages that:

[0018] The light polymer wet bulk weight and flow degree weighing device for shield machine pressure cabin sealing can test the wet bulk weight and flow degree of light polymer in construction, can better meet the requirements of engineering construction, and less "shoddy" occurs on site. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a structural top view of the utility model;

[0021] Figure 3 It is a structural side view of the utility model;

[0022] Figure 4 It is a structural schematic view of the box body;

[0023] Figure 5 It is a structural partial sectional view of the utility model;

[0024] Figure 6 It is a structural schematic view of the slide bar;

[0025] Figure 7 It is a structural schematic view of the cover plate.

[0026] In the drawing: 1, handle; 2, cover plate; 3, guide rod; 4, side ear; 5, side frame; 6, box body; 7, support seat; 8, bearing box; 9, display screen; 10, discharge port; 11, middle conveying pipe; 12, ball valve; 13, flange plate; 14, conveying pipe; 15, flow degree tester body; 16, rotary valve; 17, through pipe; 18, air cylinder; 19, negative pressure fan; 20, transmission plate; 21, scale table; 22, first baffle; 23, second baffle; 24, inner groove; 25, storage cavity; 26, push rod; 27, sliding chute; 28, inner cavity; 29, weighing sensor; 30, slide bar; 31, guide hole; 32, convex ring plate; 33, sealing gasket. DETAILED DESCRIPTION

[0027] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are presented to provide a thorough understanding of the embodiments. It is apparent, however, to one of ordinary skill in the art that the embodiments can be practiced without limited to these specific details. In some instances, well-known methods and structures have not been described in detail in order to avoid unnecessarily obscuring the embodiments. In addition, all embodiments can be used in combination with each other.

[0028] Embodiment one: please refer to Figures 1 to 7The utility model provides a technical scheme: shield machine pressure cabin sealing is with light polymer wet volume weight and flow degree weighing device, include: box 6, be equipped with storage cavity 25 and inner chamber 28 in the inside of box 6, inner chamber 28 is located the below of storage cavity 25, be provided with first baffle 22 and second baffle 23 in inner chamber 28, first baffle 22 and second baffle 23, the surface of first baffle 22 and second baffle 23 all are fixed with push rod 26, push rod 26 end surface fixedly connected with transmission plate 20, transmission plate 20 is located the outside of box 6, push rod 26 and box 6 are slidingly connected;

[0029] Box 6 top is provided with cover plate 2, the surface center of cover plate 2 is provided with through pipe 17, is provided with negative pressure fan 19 in through pipe 17, box 6 bottom is provided with bearing box 8, and bearing box 8 inside and storage cavity 25 are communicated;

[0030] The side of box 6 is connected with middle vertical pipe 11, ball valve 12 is provided in middle vertical pipe, ball valve 12 and rotary valve 16 are connected, one end of middle vertical pipe is connected to one end of flow degree tester body 15 through flange plate 13, the other end of flow degree tester body 15 is connected with material conveying pipe 14 through flange plate 13;

[0031] When using, flow degree tester body 15 adopts Melt Flow Indexer (MFI) series melt index instrument, and its model is HE-MFR-400;Box 6 inside is formed negative pressure state through negative pressure fan 19, light polymer enters flow degree tester body 15 through material conveying pipe 14, and flow degree tester body 15 measures the flow degree of light polymer, and light polymer enters storage cavity 25 of box 6 through middle vertical pipe 11, at this time, first baffle 22 and second baffle 23 contact and comb tooth cooperation.

[0032] In the basis of example one, middle vertical pipe 11 and storage cavity 25 are communicated, rotary valve 16 is located outside middle vertical pipe 11, and rotary valve 16 controls the opening and closing of ball valve 12, and the diameter error of ball valve 12 and middle vertical pipe 11 is within 1mm, flange plate 13 adopts nine-hole disc, and the bottom of storage cavity 25 is inclined.

[0033] When using, the opening and closing of ball valve 12 can be controlled by rotating rotary valve 16 to control the amount of light polymer entering storage cavity 25, and the bottom of storage cavity 25 is inclined, which facilitates the subsequent light polymer entering bearing box 8.

[0034] The side frame 5 is fixed at the two side outer walls of the box body 6, the side ears 4 are fixed at the two side outer walls of the cover plate 2, the side ears 4 are inserted into the side frame 5 and fixed by bolts, the convex ring plate 32 is fixed on the lower surface of the cover plate 2, the sealing ring is fixed at the bottom of the convex ring plate 32, the inner recess 24 is formed on the upper surface of the box body 6, the convex ring plate 32 is inserted into the inner recess 24, and the sealing gasket is in contact with and tightly abuts against the inner wall of the inner recess 24;

[0035] In use, when the cover plate 2 is installed, the convex ring plate 32 is correspondingly inserted into the inner recess 24, and the sealing gasket is in contact with and tightly abuts against the inner wall of the inner recess 24, so that the sealing property of the whole after the cover plate 2 is installed is improved, the side ears 4 are inserted into the side frame 5 and the bolts are screwed, and the cover plate 2 is fixed.

[0036] In the third embodiment, the guide holes 31 are formed at the four ends of the surface of the cover plate 2, the handle 1 is fixed on the upper surface of the cover plate 2, the handle 1 is provided in two groups and symmetrically distributed about the through pipe 17, the guide rod 3 is fixed at the bottom end of the upper surface of the box body 6, the end surface of the guide rod 3 is chamfered, and the outer wall of the guide rod 3 and the inner wall of the guide hole 31 are in sliding connection.

[0037] In use, when the cover plate 2 and the box body 6 are installed, the guide rod 3 is first inserted into the guide hole 31, so that the movement of the cover plate 2 is limited, the convex ring plate 32 is correspondingly inserted into the inner recess 24, the installation is smooth, and after the box body 6 is used, the inside of the box body 6 needs to be cleaned, the bolts on the side frame 5 are removed, the limiting is released, the handle 1 is held and pulled, the cover plate 2 and the box body 6 are separated, the inside of the box body 6 is cleaned, and the correctness of the next measurement data is ensured.

[0038] The opposite surfaces of the first baffle 22 and the second baffle 23 are provided with comb-shaped structures and are matched with each other, the slide bars 30 are fixed on the lower surfaces of the first baffle 22 and the second baffle 23, the slide bars 30 are provided in a plurality of numbers and uniformly distributed on the lower surfaces of the baffles, the slide grooves 27 are formed on the bottom wall of the inner cavity 28 and uniformly distributed, the slide bars 30 and the slide grooves 27 are in sliding connection, the transmission plate 20 is in the shape of a square plate, the support seats 7 are fixed at the two sides of the box body 6, the support seats 7 are in the shape of an “L”, the air cylinders 18 are arranged on the support seats 7, the air cylinders 18 are provided in a plurality of numbers and uniformly distributed on the support seats 7, and the output ends of the air cylinders 18 are fixedly connected to the transmission plate 20.

[0039] When in use, before the light polymer enters the storage cavity 25, the output end of the air cylinder 18 will drive the transmission plate 20 to move, and then drive the push rod 26 to move, so that the first baffle 22 and the second baffle 23 are close to each other, and through the design of the comb-shaped structure, the first baffle 22 and the second baffle 23 can be closed, and the light polymer will fall into the storage cavity 25 for volume detection. When the volume detection is completed, the push air cylinder 18 is started to drive the push rod 26 to move, so that the first baffle 22 and the second baffle 23 are away from each other, and the light polymer enters the bearing box 8. At the same time of moving the baffle, the slide strip 30 arranged in the sliding groove 27 continuously slides, which provides guidance and support for the movement of the baffle and improves the stability of the movement of the baffle.

[0040] The box body 6 is made of acrylic plate, the outer wall of the box body 6 is provided with a scale table 21, the inside bottom of the bearing box 8 is provided with a weighing sensor 29, the outer wall of the bearing box 8 is provided with a display screen 9, and the weighing sensor 29 and the display screen 9 are electrically connected. The surface of the bearing box 8 is provided with a discharge port 10.

[0041] When in use, the box body 6 is made of acrylic plate, which is convenient for observing the light polymer inside, and the scale table 21 arranged in cooperation is convenient for reading the volume. The bearing box 8 is arranged at the bottom of the box body 6 and communicates with the storage cavity 25, and the inside of the bearing box 8 is provided with a weighing sensor 29, which can measure the weight of the light polymer material falling therein. The outer wall of the bearing box 8 is provided with a display screen 9 for displaying the measurement result. The data of the weighing sensor 29 and the display screen 9 are electrically connected, so that the measurement result can be displayed in real time and intuitively. The discharge port 10 is arranged on the surface of the bearing box 8 and is used for discharging the light polymer material after the test is completed.

[0042] Working principle: when in actual use, the light polymer enters the flowability tester body 15 through the feeding pipe 14, and the flowability of the flowability tester body 15 is detected. Then the light polymer enters the storage cavity 25 of the box body 6. When the light polymer is appropriate, the control ball valve 12 is closed by rotating the rotary valve 16, so that the light polymer stops flowing. At this time, the volume of the light polymer in the box body 6 is observed through the scale table 21 on the surface of the box body 6, which is recorded as V1. Then, the first baffle 22 and the second baffle 23 are away from each other by starting the air cylinder 18, so that the light polymer enters the bearing box 8. The light polymer is weighed by the weighing sensor 29 and displayed by the display screen 9, which is recorded as W1. It is brought into the following formula to calculate the wet capacity Q:

[0043]

[0044] (Where: Q represents the moisture capacity n = 1, 2, 3, 4, 5, 6, ...)

[0045] In actual measurement, multiple measurements are required, and the average value of the multiple measurements is taken to represent the humidity capacity, in order to ensure the accuracy of the data.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight polymer wet bulk density and flowability gauge for use in sealing a pressure chamber of a tunneling machine, characterized by: The light polymer wet bulk density and flow degree tester for shield machine pressure cabin sealing comprises a box body (6), a storage cavity (25) and an inner cavity (28) are arranged in the box body (6), the inner cavity (28) is located below the storage cavity (25), a first baffle (22) and a second baffle (23) are arranged in the inner cavity (28), the surfaces of the first baffle (22) and the second baffle (23) are fixedly connected with push rods (26), the end faces of the push rods (26) are fixedly connected with transmission plates (20), the transmission plates (20) are located outside the box body (6), and the push rods (26) and the box body (6) are in sliding connection. A cover plate (2) is arranged above the box body (6), a through pipe (17) is arranged at the center of the surface of the cover plate (2), a negative pressure fan (19) is arranged in the through pipe (17), and a bearing box (8) is arranged at the bottom of the box body (6) and communicates with the storage cavity (25). A middle vertical pipe (11) is connected to the side of the box body (6), a ball valve (12) is arranged in the middle vertical pipe (11), the ball valve (12) is connected with a rotary valve (16), one end of the middle vertical pipe (11) is connected to one end of a flow degree tester body (15) through a flange plate (13), and the other end of the flow degree tester body (15) is connected with a feeding pipe (14) through the flange plate (13).

2. A lightweight polymer wet bulk density and flowability gauge for use in sealing a pressure chamber of a tunneling machine as claimed in claim 1, characterized in that: The middle vertical pipe (11) communicates with the storage cavity (25), the rotary valve (16) is located outside the middle vertical pipe (11), the rotary valve (16) controls the opening and closing of the ball valve (12), the diameter of the ball valve (12) is within 1mm of the middle vertical pipe (11), the flange plate (13) is a nine-hole plate, and the bottom of the storage cavity (25) is inclined.

3. The lightweight polymer wet bulk density and flowability gauge for a shield machine pressure cabin seal of claim 1, wherein: Side frames (5) are fixed to the outer walls of the two sides of the box body (6), side ears (4) are fixed to the outer walls of the two sides of the cover plate (2), the side ears (4) are inserted into the side frames (5) and are fixed through bolts.

4. The lightweight polymer wet bulk density and flowability gauge for a shield machine pressure cabin seal of claim 1, wherein: A convex ring plate (32) is fixed to the lower surface of the cover plate (2), a sealing ring is fixed to the bottom of the convex ring plate (32), an inner groove (24) is arranged on the upper surface of the box body (6), the convex ring plate (32) is inserted into the inner groove (24), and a sealing gasket (33) is in contact with and tightly abuts against the inner wall of the inner groove (24).

5. The lightweight polymer wet bulk density and flowability gauge for a shield machine pressure cabin seal of claim 1, wherein: Guide holes (31) are arranged at the four ends of the surface of the cover plate (2), a handle (1) is fixed to the upper surface of the cover plate (2), the handle (1) has two groups, the two groups of handles (1) are symmetrically distributed about the through pipe (17), a guide rod (3) is fixed to the bottom end of the upper surface of the box body (6), the end face of the guide rod (3) is chamfered, and the outer wall of the guide rod (3) and the inner wall of the guide hole (31) are in sliding connection.

6. The lightweight polymer wet bulk density and flowability gauge for a shield machine pressure cabin seal of claim 1, wherein: The opposite surfaces of the first baffle (22) and the second baffle (23) are provided with comb-shaped structures and are adapted to each other, slide strips (30) are fixed to the lower surfaces of the first baffle (22) and the second baffle (23), a plurality of slide strips (30) are uniformly distributed on the lower surfaces of the baffles, a plurality of slide grooves (27) are arranged on the bottom wall of the inner cavity (28) and are uniformly distributed, and the slide strips (30) and the slide grooves (27) are in sliding connection.

7. The lightweight polymer wet bulk density and flowability gauge for a shield machine pressure cabin seal of claim 1, wherein: The transmission plate (20) is in square plate shape, the box body (6) is fixed with the support (7) on both sides, the support (7) is in L type in section, the support (7) is provided with the air cylinder (18), the air cylinder (18) is provided with several, several air cylinders (18) are evenly distributed on the support (7), and the output end of the air cylinder (18) is fixedly connected to the transmission plate (20).

8. The lightweight polymer wet bulk density and flowability gauge for a shield machine pressure cabin seal of claim 1, wherein: The box body (6) is made of acrylic plate, and the outer wall of the box body (6) is provided with a scale table (21).

9. The lightweight polymer wet bulk density and flowability gauge for a shield machine pressure cabin seal of claim 1, wherein: The inside bottom of the bearing box (8) is provided with a weighing sensor (29), the outer wall of the bearing box (8) is provided with a display screen (9), the weighing sensor (29) and the display screen (9) are electrically connected, and the surface of the bearing box (8) is provided with a discharge port (10).

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