阅读说明：本技术 一种管片运输装置及使用该管片运输装置的盾构机 (Segment conveying device and shield machine using same ) 是由 贺飞 王亚威 潘守辰 宁向可 张玉香 于 2021-07-20 设计创作，主要内容包括：本发明涉及盾构机技术领域,具体涉及一种管片运输装置及使用该管片运输装置的盾构机。管片运输装置包括外框架、外框架驱动单元,外框架在使用时支撑在已铺设管片上且可前后移动；外框架驱动单元具有直线伸缩端,直线伸缩端连接在外框架上,外框架驱动单元上设有用于安装在拖车上的安装座,所述外框架驱动单元可将外框架向前驱动以使外框架的前端位于管片拼装机所在的位置处,也可将外框架向后驱动至管片拼装机的后方；外框架上沿前后方向移动装配有管片运载小车,管片运载小车用于放置管片；外框架上还设有小车驱动单元,小车驱动单元用于驱动管片运载小车相对于外框架前后移动。(The invention relates to the technical field of shield tunneling machines, in particular to a duct piece conveying device and a shield tunneling machine using the duct piece conveying device. The duct piece conveying device comprises an outer frame and an outer frame driving unit, wherein the outer frame is supported on the laid duct pieces and can move back and forth when in use; the outer frame driving unit is provided with a linear telescopic end, the linear telescopic end is connected to the outer frame, a mounting seat used for being mounted on a trailer is arranged on the outer frame driving unit, and the outer frame driving unit can drive the outer frame forwards so that the front end of the outer frame is located at the position of the segment erector and can also drive the outer frame backwards to the rear of the segment erector; a duct piece carrying trolley is movably assembled on the outer frame along the front-back direction and used for placing duct pieces; and the outer frame is also provided with a trolley driving unit which is used for driving the segment carrying trolley to move back and forth relative to the outer frame.)

1. A section of jurisdiction conveyer which characterized in that: the method comprises the following steps:

the outer frame (8) is supported on the paved pipe piece (11) and can move back and forth when in use;

the outer frame driving unit (1) is provided with a linear telescopic end, the linear telescopic end is connected to an outer frame (8), a mounting seat (2) used for being mounted on a trailer is arranged on the outer frame driving unit (1), the outer frame driving unit (1) can drive the outer frame (8) forwards so that the front end of the outer frame (8) is located at the position of the segment erector, and can also drive the outer frame (8) backwards to the rear of the segment erector;

the duct piece carrying trolley (6) is movably assembled on the outer frame (8) along the front-back direction, and the duct piece carrying trolley (6) is used for placing duct pieces;

and the trolley driving unit is arranged on the outer frame (8) and used for driving the segment carrying trolley (6) to move back and forth relative to the outer frame (8).

2. The segment transport device of claim 1, wherein: the bottom of the outer frame (8) is provided with guide plates (14), the guide plates (14) are provided with two sides which are arranged at intervals along the left-right direction, and the guide plates (14) on the two sides are used for extending into the grooves (13) of the laid duct pieces (11) and are matched with the groove walls of the grooves (13) in a blocking mode to achieve guiding.

3. The segment transport device of claim 1, wherein: the bottom of the outer frame (8) is provided with a wear-resisting plate (18), and the wear-resisting plate (18) is used for being in direct contact with and in sliding fit with the paved pipe piece (11).

4. The segment transport device of claim 1, 2 or 3, wherein: the left side and the right side of the outer frame (8) are respectively provided with sliding chutes (15) extending forwards and backwards, and the notches of the sliding chutes (15) at the two sides are horizontally arranged oppositely;

the two sides of the segment carrying trolley (6) are respectively provided with a supporting roller (16) which is used for supporting the groove wall at the bottom of the sliding groove (15), and a guide roller (17) which is used for horizontally stopping and matching with the groove bottom of the sliding groove (15), and the guide rollers (17) at the two sides are used for matching to guide the movement of the segment carrying trolley (6).

5. The segment transport device of claim 1, 2 or 3, wherein: the trolley driving unit comprises a chain transmission mechanism or a belt transmission mechanism, the chain transmission mechanism comprises a driving chain wheel (3) rotatably mounted at one end of the outer frame (8) in the front-back direction, a driven chain wheel (9) arranged at the other end of the outer frame, and a chain (7) wound on the driving chain wheel (3) and the driven chain wheel (9), and two ends of the chain (7) are respectively connected to the front end and the rear end of the segment carrying trolley (6); the belt transmission mechanism comprises a driving belt wheel rotatably arranged at one end of the outer frame (8) in the front-back direction, a driven belt wheel arranged at the other end of the outer frame, and a transmission belt wound on the driving belt wheel and the driven belt wheel, wherein two ends of the transmission belt are respectively connected to the front end and the rear end of the duct piece carrying trolley (6);

the trolley driving unit further comprises an adjusting piece (10) used for adjusting the tightness degree of the chain (7) or the transmission belt, the adjusting piece (10) is arranged between the driven chain wheel (9) or the driven belt wheel and the outer frame (8), and the tightness degree of the chain (7) or the transmission belt can be adjusted by changing the length of the adjusting piece (10).

6. A shield tunneling machine comprising:

the pipe piece assembling machine comprises a pipe piece assembling machine and a trailer arranged behind the pipe piece assembling machine, wherein a pipe piece conveying device is arranged on the trailer and is arranged between the pipe piece assembling machine and the trailer, and the pipe piece conveying device is used for conveying pipe pieces to the pipe piece assembling machine;

the method is characterized in that: the section of jurisdiction conveyer includes:

the outer frame (8) is supported on the paved pipe piece (11) and can move back and forth when in use;

the outer frame driving unit (1) is provided with a linear telescopic end, the linear telescopic end is connected to an outer frame (8), a mounting seat (2) is arranged on the outer frame driving unit (1), the mounting seat (2) is fixedly arranged on the trailer, the outer frame driving unit (1) can drive the outer frame (8) forwards so that the front end of the outer frame (8) is located at the position of the segment erector, and can also drive the outer frame (8) backwards to the rear of the segment erector;

the duct piece carrying trolley (6) is movably assembled on the outer frame (8) along the front-back direction, and the duct piece carrying trolley (6) is used for placing duct pieces;

and the trolley driving unit is arranged on the outer frame (8) and used for driving the segment carrying trolley (6) to move back and forth relative to the outer frame (8).

7. The shield machine of claim 6, wherein: the bottom of the outer frame (8) is provided with guide plates (14), the guide plates (14) are provided with two sides which are arranged at intervals along the left-right direction, and the guide plates (14) on the two sides are used for extending into the grooves (13) of the laid duct pieces (11) and are matched with the groove walls of the grooves (13) in a blocking mode to achieve guiding.

8. The shield machine of claim 6, wherein: the bottom of the outer frame (8) is provided with a wear-resisting plate (18), and the wear-resisting plate (18) is used for being in direct contact with and in sliding fit with the paved pipe piece (11).

9. The shield machine of claim 6, 7 or 8, characterized in that: the left side and the right side of the outer frame (8) are respectively provided with sliding chutes (15) extending forwards and backwards, and the notches of the sliding chutes (15) at the two sides are horizontally arranged oppositely;

the two sides of the segment carrying trolley (6) are respectively provided with a supporting roller (16) which is used for supporting the groove wall at the bottom of the sliding groove (15), and a guide roller (17) which is used for horizontally stopping and matching with the groove bottom of the sliding groove (15), and the guide rollers (17) at the two sides are used for matching to guide the movement of the segment carrying trolley (6).

10. The shield machine of claim 6, 7 or 8, characterized in that: the trolley driving unit comprises a chain transmission mechanism or a belt transmission mechanism, the chain transmission mechanism comprises a driving chain wheel (3) rotatably mounted at one end of the outer frame (8) in the front-back direction, a driven chain wheel (9) arranged at the other end of the outer frame, and a chain (7) wound on the driving chain wheel (3) and the driven chain wheel (9), and two ends of the chain (7) are respectively connected to the front end and the rear end of the segment carrying trolley (6); the belt transmission mechanism comprises a driving belt wheel rotatably arranged at one end of the outer frame (8) in the front-back direction, a driven belt wheel arranged at the other end of the outer frame, and a transmission belt wound on the driving belt wheel and the driven belt wheel, wherein two ends of the transmission belt are respectively connected to the front end and the rear end of the duct piece carrying trolley (6);

the trolley driving unit further comprises an adjusting piece (10) used for adjusting the tightness degree of the chain (7) or the transmission belt, the adjusting piece (10) is arranged between the driven chain wheel (9) or the driven belt wheel and the outer frame (8), and the tightness degree of the chain (7) or the transmission belt can be adjusted by changing the length of the adjusting piece (10).

Technical Field

The invention relates to the technical field of shield tunneling machines, in particular to a duct piece conveying device and a shield tunneling machine using the duct piece conveying device.

Background

In recent years, full-face tunnel boring machines are increasingly used due to the advantages of safety, high efficiency, good economy, suitability for long-distance operation and the like. In the tunnel construction taking the duct piece as a supporting form, duct piece assembly is one of key processes, and duct piece transportation is an indispensable ring in a duct piece assembly link. The small-diameter full-face tunnel boring machine is complex in mechanism, compact in arrangement and small in duct piece transportation space. Conventional section of jurisdiction conveyer arranges on the trailer, and the trailer is connected at section of jurisdiction erector's rear through dragging the hydro-cylinder, and section of jurisdiction conveyer arranges between section of jurisdiction erector and trailer, and prior art's section of jurisdiction conveyer's transportation mode is the marching type, has the function of jacking, decline except that having the back-and-forth movement function. When the method is applied to small-diameter excavation fracture surfaces, the structural overall dimension of the method cannot meet the narrow space requirement.

Therefore, the application publication number CN112664241A of the chinese invention discloses a temporary segment transportation device and a construction method, wherein a track is laid on the existing segment, a segment carrying trolley is slidably mounted on the track, and a driving mechanism is provided to drive the segment carrying trolley back and forth, wherein the driving mechanism is a chain transmission manner. During the use, earlier with section of jurisdiction carrying trolley as for the initiating position to hoist and mount the section of jurisdiction on section of jurisdiction carrying trolley, then drive section of jurisdiction carrying trolley removes to the termination position, and section of jurisdiction erector snatchs back section of jurisdiction carrying trolley idle load and returns.

The duct piece conveying device in the prior art utilizes the reciprocating motion of the duct piece carrying trolley between the starting position and the ending position to convey duct pieces, and does not need to be provided with a jacking structure. But the problem that exists lies in, can travel to segment erector department for guaranteeing segment carrying trolley, the track needs to lay to the position at segment erector place correspondingly, but segment erector needs rotate after snatching the segment to carry out the operation of assembling on next step, the segment rotates required space in-process great, orbital existence easily makes the corner position of segment collide with on the track, causes section of jurisdiction, orbital damage, and segment erector can't normally work.

Disclosure of Invention

The invention aims to provide a duct piece conveying device, which aims to solve the technical problems that the duct piece and a track are easy to damage and a duct piece assembling machine cannot work normally because the conveying device in the prior art reserves a small space for assembling duct pieces; still provide a shield constructs machine that uses this section of jurisdiction conveyer to solve above-mentioned technical problem.

In order to achieve the purpose, the technical scheme of the pipe piece conveying device provided by the invention is as follows: a tube sheet transport device comprising:

the outer frame is supported on the laid pipe sheet and can move back and forth when in use;

the outer frame driving unit is provided with a linear telescopic end, the linear telescopic end is connected to the outer frame, a mounting seat used for being mounted on a trailer is arranged on the outer frame driving unit, and the outer frame driving unit can drive the outer frame forwards so that the front end of the outer frame is located at the position of the segment erector and can also drive the outer frame backwards to the rear of the segment erector;

the duct piece carrying trolley is movably assembled on the outer frame in the front-back direction and used for placing duct pieces;

and the trolley driving unit is arranged on the outer frame and used for driving the segment carrying trolley to move back and forth relative to the outer frame.

Has the advantages that: the outer frame can be driven by outer frame drive unit and the back-and-forth movement, guarantees that segment carrying trolley can remove to segment erector's position, guarantees that segment erector can snatch the section of jurisdiction and assemble, also can guarantee that outer frame is located the rear of segment erector on the whole, and the rotation when assembling for the section of jurisdiction leaves the space, avoids colliding the interference between section of jurisdiction and the outer frame, avoids section of jurisdiction, outer frame to take place the damage, guarantees that segment erector can normally work. In the invention, the movement of the outer frame and the movement of the segment carrying trolley relative to the outer frame can ensure that the segment carrying trolley has a sufficiently long stroke, and when in use, the outer frame driving unit and the trolley driving unit can work simultaneously, thereby shortening the segment transporting time and improving the transporting effect.

Preferably, the bottom of the outer frame is provided with guide plates, the guide plates are provided with two sides which are arranged at intervals along the left-right direction, and the guide plates on the two sides are used for extending into the grooves of the laid duct pieces and are in stop fit with the groove walls of the grooves to realize guiding. The groove with the paved duct piece is used for guiding the outer frame, the structure is simple, and guiding movement of the outer frame is guaranteed.

Preferably, the bottom of the outer frame is provided with wear plates for direct contact and sliding fit with the laid segments. Through setting up the antifriction plate, can prolong the live time of outer frame.

Preferably, the left side and the right side of the outer frame are respectively provided with sliding chutes extending forwards and backwards, and the notches of the sliding chutes on the two sides are horizontally arranged oppositely;

the two sides of the segment carrying trolley are respectively provided with a supporting roller for supporting the groove wall at the bottom of the sliding groove and a guide roller for being matched with the horizontal stop at the bottom of the sliding groove, and the guide rollers at the two sides are used for being matched to guide the movement of the segment carrying trolley. The friction force between the duct piece carrying trolley and the outer frame can be reduced through the supporting rollers, and the guide rollers ensure the front and back guide movement of the duct piece carrying trolley and ensure the stable transportation.

Preferably, the trolley driving unit comprises a chain transmission mechanism or a belt transmission mechanism, the chain transmission mechanism comprises a driving sprocket rotatably mounted at one end of the outer frame in the front-back direction, the chain transmission mechanism also comprises a driven sprocket arranged at the other end of the outer frame, and the chain is wound on the driving sprocket and the driven sprocket, and two ends of the chain are respectively connected with the front end and the rear end of the segment carrying trolley; the belt transmission mechanism comprises a driving belt wheel rotatably arranged at one end of the outer frame in the front-back direction, a driven belt wheel arranged at the other end of the outer frame, and a transmission belt wound on the driving belt wheel and the driven belt wheel, wherein two ends of the transmission belt are respectively connected to the front end and the rear end of the duct piece carrying trolley;

the trolley driving unit further comprises an adjusting piece used for adjusting the tightness degree of the chain or the transmission belt, the adjusting piece is arranged between the driven chain wheel or the driven belt wheel and the outer frame, and the tightness degree of the chain or the transmission belt can be adjusted by changing the length of the adjusting piece. The segment conveying mechanism has the advantages of long stroke no matter a chain transmission mechanism or a belt transmission mechanism, and can be used for long-distance transportation of segments; and the degree of tightness of longer chains and transmission belts is moderate through the adjusting pieces, and the smooth transportation process is ensured.

The shield machine of the invention has the technical scheme that: a shield tunneling machine comprising:

the pipe piece assembling machine comprises a pipe piece assembling machine and a trailer arranged behind the pipe piece assembling machine, wherein a pipe piece conveying device is arranged on the trailer and is arranged between the pipe piece assembling machine and the trailer, and the pipe piece conveying device is used for conveying pipe pieces to the pipe piece assembling machine;

the section of jurisdiction conveyer includes:

the outer frame is supported on the laid pipe sheet and can move back and forth when in use;

the outer frame driving unit is provided with a linear telescopic end, the linear telescopic end is connected to an outer frame, a mounting seat is arranged on the outer frame driving unit and fixedly arranged on the trailer, and the outer frame driving unit can drive the outer frame forwards so that the front end of the outer frame is located at the position of the segment erector and can also drive the outer frame backwards to the rear of the segment erector;

the duct piece carrying trolley is movably assembled on the outer frame in the front-back direction and used for placing duct pieces;

and the trolley driving unit is arranged on the outer frame and used for driving the segment carrying trolley to move back and forth relative to the outer frame.

Has the advantages that: the outer frame can be driven by outer frame drive unit and the back-and-forth movement, guarantees that segment carrying trolley can remove to segment erector's position, guarantees that segment erector can snatch the section of jurisdiction and assemble, also can guarantee that outer frame is located the rear of segment erector on the whole, and the rotation when assembling for the section of jurisdiction leaves the space, avoids colliding the interference between section of jurisdiction and the outer frame, avoids section of jurisdiction, outer frame to take place the damage, guarantees that segment erector can normally work. In the invention, the movement of the outer frame and the movement of the segment carrying trolley relative to the outer frame can ensure that the segment carrying trolley has a sufficiently long stroke, and when in use, the outer frame driving unit and the trolley driving unit can work simultaneously, thereby shortening the segment transporting time and improving the transporting effect.

Preferably, the bottom of the outer frame is provided with guide plates, the guide plates are provided with two sides which are arranged at intervals along the left-right direction, and the guide plates on the two sides are used for extending into the grooves of the laid duct pieces and are in stop fit with the groove walls of the grooves to realize guiding. The groove with the paved duct piece is used for guiding the outer frame, the structure is simple, and guiding movement of the outer frame is guaranteed.

Preferably, the bottom of the outer frame is provided with wear plates for direct contact and sliding fit with the laid segments. Through setting up the antifriction plate, can prolong the live time of outer frame.

Preferably, the left side and the right side of the outer frame are respectively provided with sliding chutes extending forwards and backwards, and the notches of the sliding chutes on the two sides are horizontally arranged oppositely;

the two sides of the segment carrying trolley are respectively provided with a supporting roller for supporting the groove wall at the bottom of the sliding groove and a guide roller for being matched with the horizontal stop at the bottom of the sliding groove, and the guide rollers at the two sides are used for being matched to guide the movement of the segment carrying trolley. The friction force between the duct piece carrying trolley and the outer frame can be reduced through the supporting rollers, and the guide rollers ensure the front and back guide movement of the duct piece carrying trolley and ensure the stable transportation.

Preferably, the trolley driving unit comprises a chain transmission mechanism or a belt transmission mechanism, the chain transmission mechanism comprises a driving sprocket rotatably mounted at one end of the outer frame in the front-back direction, the chain transmission mechanism also comprises a driven sprocket arranged at the other end of the outer frame, and the chain is wound on the driving sprocket and the driven sprocket, and two ends of the chain are respectively connected with the front end and the rear end of the segment carrying trolley; the belt transmission mechanism comprises a driving belt wheel rotatably arranged at one end of the outer frame in the front-back direction, a driven belt wheel arranged at the other end of the outer frame, and a transmission belt wound on the driving belt wheel and the driven belt wheel, wherein two ends of the transmission belt are respectively connected to the front end and the rear end of the duct piece carrying trolley;

the trolley driving unit further comprises an adjusting piece used for adjusting the tightness degree of the chain or the transmission belt, the adjusting piece is arranged between the driven chain wheel or the driven belt wheel and the outer frame, and the tightness degree of the chain or the transmission belt can be adjusted by changing the length of the adjusting piece. The segment conveying mechanism has the advantages of long stroke no matter a chain transmission mechanism or a belt transmission mechanism, and can be used for long-distance transportation of segments; and the degree of tightness of longer chains and transmission belts is moderate through the adjusting pieces, and the smooth transportation process is ensured.

Drawings

FIG. 1 is a schematic view of a tube sheet transport device provided in accordance with the present invention in a starting position;

FIG. 2 is a schematic view of a tube sheet transport device provided by the present invention in a terminal position;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic view of section A-A of FIG. 1;

FIG. 5 is an enlarged view at B in FIG. 4;

description of reference numerals:

1. an outer frame driving unit; 2. a mounting seat; 3. a drive sprocket; 4. a drive member; 5. duct pieces to be conveyed; 6. a segment carrying trolley; 7. a chain; 8. an outer frame; 9. a driven sprocket; 10. an adjustment member; 11. the segments are laid; 12. a grasping device of the segment erector; 13. a groove; 14. a guide plate; 15. a chute; 16. supporting the rollers; 17. a guide roller; 18. wear plates.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

Embodiment 1 of the tube sheet transport apparatus provided by the present invention:

as shown in fig. 1 to 5, the segment transfer device is arranged between the segment erector and the trailer, and can convey a segment 5 to be conveyed to a segment erector gripping device 12, wherein the trailer is connected with the segment erector through a dragging oil cylinder and moves forwards in a stepping manner along with the segment erector.

For the convenience of description, the segment erector, the segment transporter and the trailer are sequentially arranged from front to back, the segment transporter is used for conveying the segment 5 forwards, and the segment transporter returns backwards in a no-load manner, and the segment transporter in the embodiment is arranged on the paved segment 11. The duct piece transportation device comprises an outer frame 8 placed on the laid duct pieces 11, wherein the outer frame 8 is of a structure with an open top, a closed periphery and a closed bottom. The outer frame 8 is in direct contact with the laid segment 11 and can be moved back and forth over the laid segment 11. In order to guide the front and back movement of the outer frame 8, as shown in fig. 4 and 5, two guide plates 14 are fixedly installed at the bottom of the outer frame 8, the two guide plates 14 are arranged at intervals in the left-right direction, the two guide plates 14 can extend into the grooves 13 extending in the front and back direction of the laid duct pieces 11, and the guide plates 14 are stopped at the left and right sides of the groove walls of the grooves 13 to guide the outer frame 8. As shown in fig. 5, in order to prevent the outer frame 8 from being worn too much at the bottom when in use, a wear-resistant plate 18 is disposed at the bottom of the outer frame 8, and the wear-resistant plate 18 is made of a wear-resistant material, so that the service life can be prolonged.

As shown in fig. 1 to 3, the duct piece transportation device further includes an outer frame driving unit 1 capable of driving the outer frame 8 to reciprocate, where the outer frame driving unit 1 is an oil cylinder, the oil cylinder includes a cylinder body and a piston rod, where the piston rod is connected to the outer frame 8 as a linear telescopic end of the oil cylinder, and a mounting seat 2 is fixed on the cylinder body, specifically, the mounting seat 2 may be fixedly mounted on the cylinder body in a hoop clamping and fixing manner, where the mounting seat 2 is connected to the trailer or may be a part of the trailer, so that the outer frame driving unit 1 is mounted on the trailer and can drive the outer frame 8 to move back and forth along with the forward movement of the duct piece erector.

As shown in fig. 1, the outer frame 8 is in a starting position, and the front end of the outer frame 8 is positioned behind the segment erector grasping device 12; as shown in fig. 2, the outer frame 8 is in the end position, and the front end of the outer frame 8 is driven to the segment erector gripper device 12.

As shown in fig. 1 to 3, a segment carrying trolley 6 is arranged on an outer frame 8 in a guiding manner along the front-rear direction, the segment carrying trolley 6 is used for bearing a segment 5 to be conveyed, and a V-shaped block is arranged on the upper part of the segment carrying trolley 6 to ensure that the segment 5 to be conveyed is kept stable in movement. As shown in fig. 5, sliding grooves 15 are respectively formed in the left and right sides of the outer frame 8, the sliding grooves 15 extend in the front-rear direction, the notches of the two sliding grooves 15 are horizontally formed, and the notches of the two sliding grooves 15 are arranged oppositely. Support rollers 16 are respectively installed on two sides of the segment carrying trolley 6, and the support rollers 16 are supported on the bottom groove wall of the sliding groove 15, so that the segment carrying trolley 6 can walk forwards and backwards. Meanwhile, two sides of the segment carrying trolley 6 are respectively provided with a guide roller 17, the axis of the guide roller 17 extends up and down, and the guide roller 17 is supported on the bottom of the chute 15 and horizontally blocked with the bottom of the chute 15. Through the cooperation of two guide rollers 17, can guarantee the steady of section of jurisdiction carrying trolley 6 back-and-forth movement, lead the back-and-forth movement of section of jurisdiction carrying trolley 6.

In order to drive the segment carrying trolley 6 to move back and forth relative to the outer frame 8, a trolley driving unit for driving the segment carrying trolley 6 to move back and forth is arranged on the outer frame 8, the trolley driving unit in the embodiment comprises a chain transmission mechanism, the chain transmission mechanism comprises a driven sprocket 9 arranged at the front end of the outer frame 8, a driving sprocket 3 arranged at the rear end of the outer frame 8 and a chain 7 meshed with the driven sprocket 9 and the driving sprocket 3, two ends of the chain 7 are respectively connected to the front end and the rear end of the segment carrying trolley 6, and the segment carrying trolley 6 is driven to move back and forth through the forward and backward rotation of the driving sprocket 3. In order to drive the driving chain wheel 3 to rotate forwards and reversely, a driving piece 4 is arranged on the outer frame 8, wherein the driving piece 4 is a driving motor, and the driving motor is connected with the driving chain wheel 3.

As shown in fig. 1 and 2, in order to adjust the tightness of the chain 7 and ensure that the chain 7 is smoothly meshed with the driving sprocket 3 and the driven sprocket 9, an adjusting member 10 is installed at the front end of the outer frame 8, the driven sprocket 9 is installed on the adjusting member 10, and specifically, the adjusting member 10 may be provided with a hole and installed by a pin. The length of the adjusting piece 10 can be changed, so that the distance between the driven chain wheel 9 and the driving chain wheel 3 can be changed, and the tightness degree of the chain 7 can be adjusted. The adjusting member 10 may be a mechanical structure, and for example, may include screws respectively connected to the outer frame 8 and the driven sprocket 9, wherein the two screws have opposite screw threads, and further include threaded sleeves sleeved outside the two screws, and the length of the adjusting member 10 is changed by rotating the threaded sleeves. In other embodiments, the adjusting member may be a hydraulic, pneumatic or electric telescopic structure.

When the duct piece conveying device is used, in an initial state, the outer frame driving unit 1 is contracted, the duct piece carrying trolley 6 is arranged at the rightmost end, and the duct piece 5 to be conveyed is unloaded onto the duct piece carrying trolley 6 by the duct piece crane. The outer frame driving unit 1 extends out, and the driving piece 4 works simultaneously, so that the outer frame 8 and the segment carrying trolley 6 move to the most front position, the segment carrying trolley 6 is arranged in the splicing area of the segment splicing machine at the moment, and the segment splicing machine grabbing device 12 grabs the segment 5 to be conveyed. After the segment erector grabbing device 12 grabs the segment 5 to be conveyed, the outer frame driving unit 1 is contracted to the limit position, and meanwhile, the driving piece 4 drives the segment carrying trolley 6 to move to the rear limit position to wait for the segment crane to unload the next segment. And after outer frame 8 moved backward, the segment erector began to rotate the section of jurisdiction and assembles, and at this moment, because outer frame 8 has already retreated, can leave great space in the position department at segment erector place, avoid bumping between section of jurisdiction and outer frame 8.

It should be noted that the bottom and the periphery of the outer frame 8 in this embodiment may be plate bodies, or may be a frame structure. In this embodiment, the driving sprocket 3 is located at the rear end of the outer frame 8, and the driven sprocket 9 is located at the front end of the outer frame 8.

In this embodiment, the driving member 4 is a driving motor. In other embodiments, the drive member is a hydraulic motor.

In this embodiment, the driving segment carrying trolley 6 reciprocates by a chain transmission mechanism. In other embodiments, the chain transmission mechanism is replaced by a belt transmission mechanism, the belt transmission mechanism comprises a driving belt wheel and a driven belt wheel which are arranged on the outer frame, and a transmission belt matched with the driving belt wheel and the driven belt wheel, the transmission belt is connected with the segment carrying trolley, and the segment carrying trolley is driven to reciprocate by driving the driving belt wheel to rotate forwards and backwards.

In this embodiment, the trolley drive unit comprises a chain drive. In other embodiments, the trolley driving unit is a cylinder, an oil cylinder or an electric push rod with a linear telescopic end.

In this embodiment, there is the spout in the left and right sides of outer frame, and there are supporting roller and guide roller in the both sides of section of jurisdiction delivery trolley. In other embodiments, the guide rollers are eliminated, and only the support rollers are reserved; or in other embodiments, the supporting rollers and the guide rollers are completely eliminated, the segment carrying trolley is provided with the sliding block, and the sliding block is matched with the sliding groove to realize guide movement. In other embodiments, the chute in the outer frame is eliminated, and rollers are mounted at the bottom of the segment carrier cart, which is supported on the outer frame by the rollers.

In this embodiment, the bottom of the outer frame has a wear plate. In other embodiments, the wear plate is eliminated. In other embodiments, rollers are mounted to the bottom of the outer frame and the outer frame is in rolling engagement with the laid segments.

In this embodiment, a guide plate is installed at the bottom of the outer frame. In other embodiments, the guide plate is eliminated, and the moving locus of the outer frame is controlled by the outer frame driving unit.

In this embodiment, the outer frame driving unit is an oil cylinder. In other embodiments, the outer frame driving unit may be a pneumatic cylinder, an electric push rod, or the like.

The shield machine comprises the following specific embodiments:

the shield constructs the machine and includes segment erector and connect the trailer at segment erector rear, and the trailer links to each other with segment erector through dragging hydro-cylinder, installs the segment transportation device who is located between segment erector, the trailer on the trailer, and wherein, segment transportation device's structure is the same with the structure of each embodiment of above-mentioned segment transportation device, no longer gives details here.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.