Shield tail gap real-time monitoring device

Abstract

The utility model discloses a shield tail gap real-time monitoring device which comprises a center beam, a shield tail and a pipe piece, the shield tail is arranged on the outermost side, the center beam is located at the center of the shield tail, and a detection mechanism is arranged on the center beam. The detection mechanism comprises a base fixed on the central beam, a plurality of buffer mechanisms are uniformly distributed at the top corners of the base, the other ends of the plurality of buffer mechanisms are connected with a supporting plate through fixing blocks, a fixing disc is fixed in the middle above the supporting plate, a rotating disc is rotatably arranged at the top of the fixing disc, and a connecting table is fixed at the top end of the rotating disc; and a measuring mechanism is rotationally arranged in the connecting table. According to the utility model, the buffer assembly can be rapidly detached and replaced, so that the rapid detachment of the buffer assembly is realized; and in addition, normal work can be carried out under the severe condition in shield construction, large influences of external factors such as machine vibration or dust, muddy water and greasy dirt in the environment on the measurement result are prevented, and the measurement stability and accuracy are further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shield tail gap monitoring technical field, concretely relates to a shield tail gap real time monitoring device. BACKGROUND

[0002] With the vigorous development of the city, the engineering quantity involved by the small and medium shield in the municipal engineering of the city is more and more, and the small and medium shield machine has been greatly developed. Under the complex topographic conditions, the small and medium shield machine needs long-time tunneling work, at this time, the shield tail gap of the small and medium shield machine is monitored in real time, the relative position relationship between the shield tail and the segment can be judged; especially in the shield machine sharp turn method application, the center line deviation of the shield tail and the segment ring and the included angle of the center line of the shield tail and the segment ring can be determined, so that the shield machine can be safely excavated in the predetermined direction.

[0003] The existing Chinese utility model patent with the authorization announcement number CN215256197U discloses a shield tail gap monitoring device based on image recognition, and particularly relates to the shield tail gap monitoring technology field of a shield machine, which comprises a machine vision detection mechanism, a shield shell and a segment.

[0004] At present, the shield tail gap is usually measured by using a range finder or a laser measurement sensor to measure the gap. Although part of the gap measurement device is provided with a buffer device, the buffer device is inconvenient to replace after being worn out after long-time use. In addition, during use, there are conditions such as much mud, dampness, dust and the like, so that the measurement device is easily affected by the external environment, resulting in inaccurate measurement stability and accuracy, and the measurement device cannot work normally in the relatively harsh conditions of shield construction. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art in the above background art, the utility model aims to quickly disassemble and replace the buffer assembly, realize quick disassembly of the buffer assembly, facilitate subsequent replacement work, and also enable the measurement device to work normally in the relatively harsh conditions of shield construction, prevent external factors such as machine vibration or dust, mud, oil stains and the like in the environment from greatly affecting the measurement results, and further ensure the measurement stability and accuracy.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A shield tail gap real-time monitoring device, including a center beam, a shield tail and a segment, the shield tail is located at the outermost side, the center beam is located at the center of the shield tail, a detection mechanism is arranged on the center beam;

[0008] The detection mechanism includes a base fixed on the center beam, a plurality of buffer mechanisms are uniformly arranged at the top corners of the base, the other ends of the plurality of buffer mechanisms are connected with a support plate through a fixing block, a fixing disc is fixed on the upper middle part of the support plate, a rotating disc is rotatably arranged on the top of the fixing disc, a connecting table is fixed on the top end of the rotating disc, and a measuring mechanism is rotatably arranged in the connecting table.

[0009] As a further scheme of the utility model, the measuring mechanism includes a support base rotatably arranged in the connecting table, an industrial camera is fixed on the upper middle part of the support base, and lasers are fixed on the two sides of the industrial camera.

[0010] As a further scheme of the utility model, a motor is fixed at the center of the bottom of the support plate, and the output shaft of the motor penetrates through the support plate, the fixing disc and the rotating disc.

[0011] As a further scheme of the utility model, the buffer mechanism includes a fixing ring fixed on the base, a guide groove is fixed in the fixing ring, a sliding plate is slidably arranged in the guide groove, a column body is fixed on the top end of the sliding plate, a connecting seat is fixed on the other end of the column body, a buffer spring is sleeved outside the guide groove, and the buffer spring is in abutment with the fixing ring and the connecting seat at two ends.

[0012] As a further scheme of the utility model, threaded holes are formed in the fixing block and the connecting seat, bolts are arranged in the threaded holes, the fixing block and the connecting seat are connected through the bolts penetrating through the threaded holes, and nuts are threadedly connected on the side of the bolts penetrating through the threaded holes.

[0013] As a further scheme of the utility model, a gap exists between the shield tail and the segment.

[0014] As a further scheme of the utility model, the cross section of the shield tail is in a circular ring shape.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) The utility model discloses a bottom base is fixed on the center beam through the bottom base and fixes the device on the center beam before use, the buffer mechanism is fixed on the bottom base at this moment, four fixed blocks set up at the bottom of support plate are sleeved into the connecting seat, then the bolt is passed through the thread opening of fixed block and connecting seat, and the nut is screwed on the bolt, realizes the fixation of device, if the buffer assembly is damaged after using for a long time, can be quickly disassembled and replaced, realizes the quick disassembly of buffer assembly, and is convenient to replace, when the vertical vibration is transmitted to the buffer mechanism, the connecting seat moves vertically upwards or downwards, at this moment, the sliding plate is slid in the guide groove under the drive of the column, and the buffer spring generates the elastic force upwards and slows down the amplitude of motion, so that the device can work normally under the relatively bad condition in shield construction, which provides effective shock attenuation measures for the device, prevents the machine vibration or environmental dust, mud, oil stains and other external factors from causing great influence on the measurement result, and further guarantees the measurement stability and accuracy.

[0017] (2) The motor is started through the external control equipment, the output shaft of the motor drives the rotating disc to rotate, so that the industrial camera and the laser are always aligned with the measured part, the accuracy of shield tail gap measurement is improved, at this moment, the industrial camera and the laser jointly work, the industrial camera acquires images, and the laser measures the distance of the shield tail gap, the obtained data and images are transmitted to the background software system, a series of digital image processing operations are started, until the final shield tail gap value is given, and is displayed on the external graphic interface. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model;

[0019] Figure 2 It is detection mechanism structure schematic diagram of the utility model;

[0020] Figure 3 It is buffer mechanism structure schematic diagram of the utility model;

[0021] Figure 4 It is buffer mechanism cross section schematic diagram of the utility model;

[0022] Figure 5 It is shield tail cross section schematic diagram of the utility model.

[0023] In the drawing: 1-center beam;2-shield tail;3-detection mechanism;4-tube piece;5-gap;6-bottom base;8-fixed block;10-buffer mechanism;11-fixed ring;12-guide groove;13-buffer spring;14-sliding plate;15-column;16-connecting seat;17-bolt;18-nut;20-fixed disc;21-rotating disc;22-connecting table;23-support base;24-industrial camera;25-laser;26-motor;27-support plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Please refer to the drawings Figures 1-5 A shield tail gap real-time monitoring device, comprising a center beam 1, a shield tail 2 and a segment 4, the shield tail 2 is arranged at the outermost side, the center beam 1 is located at the center of the shield tail 2, the center beam 1 is provided with a detection mechanism 3, there is a gap 5 between the shield tail 2 and the segment 4, the cross section of the shield tail 2 is circular ring shape;

[0028] The detection mechanism 3 includes a base 6 fixed on the center beam 1, a plurality of buffer mechanisms 10 are arranged at the top corners of the base 6, the other ends of the plurality of buffer mechanisms 10 are connected with a support plate 27 through fixing blocks 8, a fixed disc 20 is fixed on the upper middle part of the support plate 27, a rotating disc 21 is rotatably arranged on the top of the fixed disc 20, a connecting table 22 is fixed on the top end of the rotating disc 21, a measuring mechanism is rotatably arranged in the connecting table 22, threaded holes are formed in the fixing blocks 8 and the connecting seats 16, bolts 17 are arranged in the threaded holes, the fixing blocks 8 and the connecting seats 16 are connected through the threaded holes and the bolts 17, nuts 18 are threadedly connected on the side of the threaded holes through which the bolts 17 pass.

[0029] Before use, the device is fixed on the center beam 1 through the base 6, at this time the buffer mechanism 10 is fixed on the base 6, the four fixing blocks 8 arranged on the bottom of the support plate 27 are sleeved onto the connecting seats 16, then the bolts 17 are passed through the threaded holes formed in the fixing blocks 8 and the connecting seats 16, and the nuts 18 are screwed on the bolts 17, so that the device is fixed, and if the buffer assembly 10 is damaged after long-term use, it can be quickly disassembled and replaced, so that the buffer assembly 10 can be quickly disassembled and replaced.

[0030] Specifically, the base 6 is sleeved with a protective cover to prevent impurities in the external environment from entering the inside of the protective cover and affecting the measurement results, and to protect the internal measurement equipment to work stably.

[0031] The measuring mechanism includes a support base 23 rotatably arranged in the connecting table 22, an industrial camera 24 is fixed on the upper middle part of the support base 23, lasers 25 are fixed on the two sides of the industrial camera 24, and the lasers 25 are horizontally symmetrical.

[0032] The industrial camera 24 and the lasers 25 are powered through the externally arranged power supply, so that they can work normally; the shooting, image data processing, calculation and transmission of the industrial camera 24 are controlled through the externally arranged control terminal.

[0033] A motor 26 is fixed at the bottom center of the support plate 27, the output shaft of the motor 26 passes through the support plate 27 and is fixed with the fixed disc 20 and the rotating disc 21.

[0034] The buffer mechanism 10 includes a fixed ring 11 fixed on the base 6, a guide groove 12 is fixed in the fixed ring 11, a sliding plate 14 is slidably arranged in the guide groove 12, a column body 15 is fixed on the top end of the sliding plate 14, a connecting seat 16 is fixed on the other end of the column body 15, a buffer spring 13 is sleeved outside the guide groove 12, and the buffer spring 13 abuts against the fixed ring 11 and the connecting seat 16 at two ends respectively.

[0035] Specifically, when the vertical vibration is transmitted to the buffering mechanism 10, the connecting seat 16 moves vertically upward or downward, at this time, the sliding plate 14 is driven by the column 15 to slide in the guide groove 12, the buffering spring 13 generates upward elastic force to slow down the movement range, thereby preventing the dust, mud, oil stains and other external factors in the machine vibration or environment from greatly affecting the measurement result, and further ensuring the measurement stability and accuracy.

[0036] Working principle:

[0037] Before use, the device is fixed on the center beam 1 through the base 6, at this time, the buffering mechanism 10 is fixed on the base 6, the four fixing blocks 8 arranged at the bottom of the supporting plate 27 are sleeved onto the connecting seat 16, then the bolt 17 is threaded through the threaded holes formed in the fixing block 8 and the connecting seat 16, and the nut 18 is screwed on the bolt 17, so that the device is fixed, and if the buffering assembly 10 is damaged after long-term use, it can be quickly disassembled and replaced, so that the buffering assembly 10 can be quickly disassembled and replaced.

[0038] When the vertical vibration is transmitted to the buffering mechanism 10, the connecting seat 16 moves vertically upward or downward, at this time, the sliding plate 14 is driven by the column 15 to slide in the guide groove 12, the buffering spring 13 generates upward elastic force to slow down the movement range, thereby preventing the dust, mud, oil stains and other external factors in the machine vibration or environment from greatly affecting the measurement result, and further ensuring the measurement stability and accuracy.

[0039] The motor 26 is started through an external control device, the output shaft of the motor 26 drives the rotating disc 21 to rotate, so that the industrial camera 24 and the laser 25 are always aligned with the measured part, at this time, the industrial camera 24 and the laser 25 jointly work, the industrial camera 24 acquires images, and the laser 25 measures the distance of the shield tail gap, the obtained data and images are transmitted to the background software system to start a series of digital image processing operations, until the final shield tail gap value is given, and displayed on the external graphic interface.

[0040] Finally, it should be noted that the industrial camera 24, the laser 25, the motor 26 and other components involved in the utility model are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by the technical personnel through the technical manual or through the conventional experimental method, at the idle place of the device, all the electrical components, power elements, electrical components and the matched controller and power supply are connected through wires, the specific connection means should be referred to the working principle in the utility model, and the electrical components are electrically connected in the order of working sequence, and the detailed connection means are all the commonly known technology in the art.

[0041] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A shield tail gap real-time monitoring device, comprising a center beam (1), a shield tail (2) and a segment (4), characterized in that, The shield tail (2) is arranged at the outermost side, and the center beam (1) is located at the center of the shield tail (2), and the center beam (1) is provided with a detection mechanism (3); The detection mechanism (3) comprises a base (6) fixed on the center beam (1), a plurality of buffer mechanisms (10) are uniformly arranged at the top corners of the base (6), the other ends of the plurality of buffer mechanisms (10) are connected with a supporting plate (27) through a fixing block (8), a fixed disc (20) is fixed on the upper middle part of the supporting plate (27), a rotating disc (21) is rotatably arranged on the top of the fixed disc (20), a connecting table (22) is fixed on the top end of the rotating disc (21), and a measuring mechanism is rotatably arranged in the connecting table (22). The buffer mechanism (10) comprises a fixed ring (11) fixed on the base (6), a guide groove (12) is fixed in the fixed ring (11), a sliding plate (14) is slidably arranged in the guide groove (12), a column body (15) is fixed on the top end of the sliding plate (14), a connecting seat (16) is fixed on the other end of the column body (15), a buffer spring (13) is sleeved outside the guide groove (12), and the two ends of the buffer spring (13) abut against the fixed ring (11) and the connecting seat (16) respectively.

2. The real-time monitoring device for the shield tail gap according to claim 1, characterized in that, The measuring mechanism comprises a supporting base (23) rotatably arranged in the connecting table (22), an industrial camera (24) is fixed on the upper middle part of the supporting base (23), and a laser (25) is fixed on the upper side of the supporting base (23) on the two sides of the industrial camera (24).

3. The real-time monitoring device for the shield tail gap according to claim 1, characterized in that, The bottom center of the supporting plate (27) is fixed with a motor (26), and the output shaft of the motor (26) penetrates the supporting plate (27) and is fixed with the fixed disc (20) and the rotating disc (21).

4. The real-time monitoring device for the shield tail gap according to claim 1, characterized in that, The fixed block (8) and the connecting seat (16) are both provided with threaded holes, the threaded holes are provided with bolts (17), the bolts (17) pass through the threaded holes to connect the fixed block (8) and the connecting seat (16), and the side of the bolt (17) passing through the threaded hole is threadedly connected with a nut (18).

5. The real-time monitoring device for the shield tail gap according to claim 1, characterized in that, There is a gap (5) between the shield tail (2) and the segment (4).

6. The inter-shield gap real-time monitoring device of claim 1, wherein, The cross section of the shield tail (2) is circular.

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