A pipe segment rapid transfer system and a tunneling machine

Abstract

The application discloses a pipe segment rapid transfer system and a heading machine, which are used for improving the transfer efficiency of the pipe segment. The pipe segment rapid transfer system comprises a pipe segment crane and a pipe segment unloading device. The pipe segment unloading device is connected with a rail changing trolley. The rail changing trolley comprises a trolley frame provided with travelling wheels. The trolley frame is provided with a trolley track and a telescopic temporary track used for extending the trolley track. The trolley track and the temporary track are used for guiding a marshalling car to pass to an unloading track of the pipe segment unloading device. An elevating frame assembly used for supporting the pipe segment on the marshalling car is arranged on the pipe segment unloading device. The heading machine comprises a pipe segment assembling machine connected with a heading main machine, a rear matched trailer and the pipe segment rapid transfer system. The front end of the pipe segment crane is connected with the pipe segment assembling machine, and the rear end of the pipe segment crane is connected with the rear matched trailer. The rail changing trolley, the pipe segment unloading device and the pipe segment crane are rationally and effectively designed, the rapid transfer of the pipe segment is realized, and the efficiency of the pipe segment transfer and assembling is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield segment transfer, in particular to a segment rapid transfer system and a tunneling machine. BACKGROUND

[0002] In recent years, during the shield construction process, the shield complete set equipment can complete one-time full-face tunnel excavation, support and spoil conveying, and has the characteristics of safety, high efficiency, environmental protection and high automation. The material used for tunnel support is a prefabricated annular reinforced concrete segment with a certain width and thickness. The segment is transported to the hole by a marshalling car, then the segment unloading device unloads the segment on the marshalling car, and then the segment crane hoists the segment to the segment trolley, and the segment trolley is transported to the segment assembling machine for assembly.

[0003] However, the internal space of the small-diameter shield is limited, and how to reasonably and effectively design the segment transfer system such as the segment unloading device, the segment crane and the segment trolley greatly affects the efficiency of segment assembly. In the field of shield complete set equipment, although the existing technology has made certain progress in the research on the segment transfer system, in small-diameter shield construction projects, the traditional segment transfer system cannot meet the demand of rapid transfer of segments. Therefore, it is necessary to design a segment rapid transfer system suitable for small-diameter shields.

[0004] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background of the present application, and should not be regarded as acknowledging or implying in any form that the above technical information constitutes prior art known to those skilled in the art. SUMMARY

[0005] In view of the deficiencies in the above background art, the present application provides a segment rapid transfer system and a tunneling machine to improve the transfer efficiency of segments.

[0006] The technical solution of the present application is as follows:

[0007] A segment rapid transfer system, comprising a segment crane and a segment unloading device, the segment unloading device being connected with a rail-changing trolley, the rail-changing trolley comprising a trolley frame with walking wheels at the bottom, the trolley frame being provided with a trolley track and a temporary track that can extend the trolley track, the trolley track and the temporary track being used as an unloading track for the marshalling car to pass to the segment unloading device, and the segment unloading device being provided with a lifting frame assembly for supporting the segments on the marshalling car.

[0008] The technical scheme is not only suitable for quick transfer of pipe segments of small-diameter shield machines, but also suitable for quick transfer of pipe segments of large-diameter shield machines, especially in a limited space inside a small-diameter shield machine, the rail-changing trolley can enable the marshalling car transporting the pipe segments to directly walk on the temporary track and the trolley track to the download track above the pipe segment unloading device, thereby reducing the distance of pipe segment transfer; the pipe segment unloading device is designed to unload the pipe segments transported on the marshalling car as a whole; the pipe segment crane is designed to hoist the pipe segments on the unloader to the assembling area of the assembling machine. That is, the technical scheme realizes quick transfer of pipe segments by reasonably and effectively designing the rail-changing trolley, the pipe segment unloading device and the pipe segment crane, thereby greatly improving the efficiency of pipe segment transfer and assembling.

[0009] On the basis of the above technical scheme, as a preferred technical scheme of the pipe segment quick transfer system, the tail part of the trolley track and the head part of the temporary track are connected by an up-and-down slope transition structure. The technical scheme can ensure that the horizontal slope section after the up slope can place the temporary track on the rail-changing trolley and its matched structure thereunder, without affecting the passing of the marshalling car.

[0010] On the basis of the above technical scheme, as a preferred technical scheme of the pipe segment quick transfer system, the walking wheels are arranged on both sides of the trolley frame, the trolley track is arranged on the top of the trolley frame, and the temporary track is arranged on the bottom of the trolley frame. The technical scheme not only has a reasonable layout, stable and reliable stress, but also has a simple and compact structure, and is convenient for the temporary track to extend and be stored under the trolley frame.

[0011] On the basis of the above technical scheme, as a preferred technical scheme of the pipe segment quick transfer system, the temporary track is connected with the trolley frame by a telescopic device or a winch device, and the bottom of the temporary track is provided with a pad, a roller or a pulley. The technical scheme provides various selectable driving devices. If the telescopic device is used to drive the temporary track to extend and retract, the temporary track can be automatically extended and retracted. If the winch device is used to drive the temporary track, the temporary track is in a fixed position and can only be extended relative to the trolley frame when the trolley frame moves forward. After the temporary track is completely extended, the winch device can be used to pull the temporary track back to the bottom of the trolley frame. The telescopic device can be a hydraulic cylinder, an electric cylinder or a pneumatic cylinder, etc., and the winch device can be a hydraulic winch or an electric winch, etc.

[0012] On the basis of the above technical scheme, as the preferred technical scheme of the segment rapid transfer system, the segment unloading device comprises a base frame for arranging the unloading track, the lifting frame assembly and the walking wheel assembly, the lifting frame assembly comprises two lifting assemblies symmetrically arranged relative to the unloading track, each lifting assembly comprises a connecting rod one, a connecting rod two and a telescopic device hinged to the base frame, the connecting rod one and the connecting rod two are hinged at one end away from the base frame through a bracket, one end of the telescopic device is hinged at the hinged position of the connecting rod two and the base frame, and the other end is hinged at the hinged position of the connecting rod one and the bracket. When the telescopic device is elongated, each lifting assembly can form a parallelogram frame body with gradually increasing height, so that the segments on the marshalling car can be lifted as a whole to make them leave the marshalling car, and the telescopic device is located at the diagonal position of the parallelogram frame body, serving as the common side of the two triangular structures; when the telescopic device is shortened, each lifting assembly can form a structure similar to a straight line, and the segments above it can be lowered to the lowest position, which can effectively reduce the occupation of space and does not affect the lifting movement of the segment crane. The telescopic device can adopt an oil cylinder, an electric cylinder or a gas cylinder, etc.

[0013] On the basis of the above technical scheme, as the preferred technical scheme of the segment rapid transfer system, the telescopic device is a jacking oil cylinder or a jacking electric cylinder, and the lifting frame assemblies are arranged in several groups along the length direction of the unloading track.

[0014] On the basis of the above technical scheme, as the preferred technical scheme of the segment rapid transfer system, the segment unloading device is connected to the segment crane through a towing frame or a towing cable, the towing frame comprises a front towing frame and a rear towing frame hingedly connected, the front towing frame is connected to the segment unloading device, and the rear towing frame is connected to the segment crane.

[0015] On the basis of the above technical scheme, as the preferred technical scheme of the segment rapid transfer system, the segment crane comprises a crane frame and a pulley walking trolley, a chain transmission mechanism drives the pulley walking trolley to walk along the length direction of the crane frame, and the pulley walking trolley is connected to a grabbing mechanism for grabbing segments through a pulley mechanism.

[0016] On the basis of the above technical scheme, as the preferred technical scheme of the segment rapid transfer system, the chain transmission mechanism comprises sprockets arranged at both ends of the crane frame and chains engaged with the sprockets in the crane frame, and the pulley walking trolley is connected between the two ends of the chain.

[0017] On the basis of the above technical scheme, as the preferred technical scheme of the segment rapid transfer system, the pulley mechanism comprises a plurality of fixed pulleys arranged on the pulley walking trolley and a plurality of movable pulleys arranged on the grabbing mechanism, a steel wire rope is arranged in the walking range of the pulley walking trolley and sequentially passes through each pulley, and at least one end of the steel wire rope is connected to a telescopic device or a winch device.

[0018] The tunneling machine comprises a segment assembling machine and a rear matching trailer connected with a tunneling main machine, and further comprises the segment rapid transfer system according to any one of the technical solutions, wherein the front end of the segment crane is connected with the segment assembling machine, and the rear end is connected with the rear matching trailer.

[0019] Compared with the prior art, the segment rapid transfer system and the tunneling machine provided by the application reasonably and effectively design the rail changing trolley, the segment unloading device and the segment crane, realize the rapid transfer of the segment, and greatly improve the efficiency of segment transfer and assembly. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a schematic diagram of the application state of the segment rapid transfer system;

[0022] Figure 2 It is a state of the segment rapid transfer system when unloading the segment Figure 1 ;

[0023] Figure 3 It is a state of the segment rapid transfer system when unloading the segment Figure 2 ;

[0024] Figure 4 It is a side view (a) and a top view (b) of the rail changing trolley;

[0025] Figure 5 It is a sectional view of A-A and a sectional view of B-B in Figure 4 ;

[0026] Figure 6 It is a sectional view of C-C and a sectional view of D-D in Figure 5 ;

[0027] Figure 7 It is a schematic diagram of the state of the segment unloading device when jacking up the segment;

[0028] Figure 8 It is a sectional view of F-F and E-E in Figure 7 ;

[0029] Figure 9 It is a schematic diagram of the state of the segment unloading device when falling the segment;

[0030] Figure 10 It is a sectional view of G-G and H-H in Figure 9Sectional view along the plane J-J and K-K;

[0031] Figure 11 is a side view (a) and a top view (b) of the pipe piece hoist;

[0032] Figure 12 is Figure 11 is an enlarged view of the side view (a);

[0033] Figure 13 is Figure 11 is an enlarged view of the top view (b);

[0034] Figure 14 is Figure 11 is a sectional view along the plane G-G;

[0035] Figure 15 is Figure 11 is a sectional view along the plane H-H;

[0036] Figure 16 is Figure 11 is a sectional view along the plane I-I.

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] 1- rail changing trolley, 2- marshalling car 3- pipe piece unloading device, 4- towing frame, 5- pipe piece hoist, 6- pipe piece assembling machine, 7- trolley frame, 8- travelling wheel, 9- trolley track, 10- temporary track, 11- rubber wheel, 12- hydraulic winch, 13- temporary track frame, 14- temporary rail, 15- base plate, 16- underframe, 17- travelling wheel assembly, 18- lifting frame assembly, 19- towing frame, 20- connecting rod one, 21- connecting rod two, 22- jacking cylinder, 23- bracket, 24- front towing frame, 25- rear towing frame, 26- hoist frame, 27- pulley travelling trolley, 28- grabbing mechanism, 29- sprocket, 30- pull rod one, 31- pull rod two, 32- motor reducer, 33- telescopic cylinder, 34- pull rod three, 35- fixed pulley one, 36- fixed pulley two, 37- fixed pulley three, 38- fixed pulley four, 39- fixed pulley five, 40- fixed pulley six, 41- movable pulley one, 42- fixed pulley seven, 43- movable pulley two, 44- fixed pulley seven, 45- unloading track, 46- rear matching trailer. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the core idea of the present application and the following embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] The present application provides these examples is to make the present application and complete, and to the person skilled in the art fully express the scope of the present application. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and numerical values set forth in these examples should be interpreted as merely exemplary, and not as limiting.

[0041] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "several" is greater than or equal to two; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] In addition, "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0043] It should also be noted that, in the description of the present application, unless otherwise specifically provided and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanical connection, or electrical connection; It can be directly connected, or indirectly connected through intermediate medium; It can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0044] All terms used in the present application have the same meaning as understood by those skilled in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined here.

[0045] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered part of the specification.

[0046] An object of the present application is to provide a segment rapid transfer system suitable for small-diameter shields, to reasonably and effectively design segment unloading devices, segment cranes, segment trolleys and other segment transfer systems, and to greatly improve the efficiency of segment transfer and assembly.

[0047] To achieve the above object, the core invention of the segment rapid transfer system of the present application includes the following three points: by designing a rail-changing trolley, the segment transport car can walk to the segment unloading device, reducing the distance of segment transfer; by designing a segment unloading device, the segments transported on the segment transport car are unloaded as a whole; by designing a segment crane, the segments on the unloading device are lifted and transported to the assembly area of the assembly machine.

[0048] The present application specifically has the following structure: a rail-changing trolley, including a rail-changing trolley frame, a temporary track, a hydraulic winch, and walking wheels, mainly providing a temporary track to connect the track in the tunnel with the track on the unloading device, so that the segment transport car can walk on the unloading device during tunnel excavation, and is connected to the segment unloading device. The hydraulic winch is installed on the rail-changing trolley, one end of the chain is connected to the temporary track, and the temporary track is placed below the rail-changing trolley. When the shield machine is excavated, the rail-changing trolley advances with the shield machine, the hydraulic winch synchronously releases the chain, and the temporary track gradually retreats to always connect with the track arranged in the tunnel. When the temporary track extends to 9 meters, the hydraulic winch retracts the chain, drives the temporary track to retract below the rail-changing trolley, and then lays the track in the tunnel, so that the track on the rail-changing trolley remains connected with the track in the tunnel.

[0049] The segment unloading device includes a chassis, a walking wheel assembly, a lifting frame assembly, and a towing frame, and mainly functions to unload the segments on the segment transport car. The rear end is connected to the rail-changing trolley, and the towing frame of the unloading device is connected to the segment crane. The lifting frame assembly includes a jacking oil cylinder, a connecting rod one, a connecting rod two, and a bracket, and the jacking oil cylinder extends to drive the connecting rod one, the connecting rod two, and the bracket to lift, thereby lifting the segments on the segment transport car. The segment crane includes a segment crane frame, a pulley set, a running trolley, a driving unit, and a lifting tool assembly, and mainly functions to lift and transport the segments on the unloading device to the assembly area of the assembly machine. The front end is connected to the assembly machine, and the rear end is connected to the rear matching trolley. When the shield machine is excavated, the segment crane frame not only drags the rear matching trolley to move forward, but also drags the segment unloading device and the rail-changing trolley to move forward.

[0050] Therefore, according to the present invention, by designing the track-changing trolley to always extend the track to the segment unloading device area, the transported segments of the marshalling car can reach the segment unloading device area via the track extended by the track-changing trolley, reducing the segment lifting time. Simultaneously, the segment unloading device is designed to quickly unload the segments from the marshalling car, allowing it to quickly exit the tunnel after unloading without affecting subsequent segment transport. After the designed segment unloading device lifts the segments from the marshalling car, the lifting component cylinder retracts after the marshalling car exits, lowering the segments. At this point, the lowering height of the segment unloading device and the segments on it is relatively low, effectively increasing the lifting space of the segment crane. The designed segment crane can both lift segments to the assembly area of ​​the assembly machine and tow the supporting trolley, segment quick unloading device, and track-changing trolley. Therefore, the present invention can achieve rapid segment transfer, greatly improving the efficiency of segment transfer and assembly.

[0051] Specific embodiments of the present invention are described below:

[0052] A rapid segment transfer system, such as Figures 1 to 6 As shown, the system includes a segment crane 5 and a segment unloading device 3, with the segment unloading device 3 connected to a track-changing trolley 1. In operation, tunnel tracks are laid within the assembled segments in the tunnel. A marshalling car 2 can travel along these tunnel tracks to the track-changing trolley 1, and then travels along the track-changing trolley 1 to the segment unloading device 3. The segment unloading device 3 unloads the segments from the marshalling car 2, which then exits the tunnel via the track-changing trolley 1. Simultaneously, the segment crane 5 lifts the segments from the segment unloading device 3 to the segment assembly machine 6 for assembly.

[0053] The track-changing trolley 1 includes a trolley frame 7 with wheels 8 at the bottom. The trolley frame 7 is equipped with a trolley track 9 and a retractable temporary track 10 for extending the trolley track 9. That is, the temporary track 10 can extend and retract relative to the trolley frame 7. The trolley track 9 and the temporary track 10 are used for the marshalling car 2 to travel to the unloading track 45 of the segment unloading device 3. The segment unloading device 3 is equipped with a lifting frame assembly 18 for supporting the segments on the marshalling car 2. When the marshalling car 2 travels through the temporary track 10 and the trolley track 9 to the unloading track 45, the lifting frame assembly 18 can unload the segments on the marshalling car 2. The segment crane 5 lifts the unloaded segments to the segment assembly machine 6 for assembly.

[0054] The embodiment is not only suitable for rapid transfer of segments of small diameter shield, but also suitable for rapid transfer of segments of large diameter shield, especially in limited space inside small diameter shield, the rail changing trolley 1 can make the marshalling car 2 transporting segments to directly walk on the temporary track 10 and the trolley track 9 to the download track 45 above the segment unloading device 3, reducing the distance of segment transfer; the segment unloading device is designed to unload the segments transported on the marshalling car; the segment crane is designed to hoist the segments on the unloader to the assembling area of the assembling machine. That is, the embodiment realizes the rapid transfer of segments by reasonably and effectively designing the rail changing trolley, the segment unloading device and the segment crane, greatly improving the efficiency of segment transfer and assembling.

[0055] On the basis of the above embodiment, as a preferred embodiment of the segment rapid transfer system, the walking wheels 8 are arranged on both sides of the trolley frame 7, the trolley track 9 is arranged on the top of the trolley frame 7, and the temporary track 10 is arranged on the bottom of the trolley frame 7. The embodiment not only has reasonable layout, stable and reliable stress, but also has simple and compact structure, which is convenient for the temporary track 10 to extend and be stored under the trolley frame 7. The embodiment can ensure that the horizontal slope section after the uphill can place the temporary track 10 on the rail changing trolley 1 and its matching structure below, without affecting the passing of the marshalling car.

[0056] On the basis of the above embodiment, as a preferred embodiment of the segment rapid transfer system, the temporary track 10 is connected with the trolley frame 7 through the telescopic device or the hoisting device, and the bottom of the temporary track 10 is provided with a base plate 15 or a roller or a pulley. The embodiment provides various optional driving devices. If the telescopic device is used to drive the temporary track 10 to extend and retract, the temporary track can be automatically extended and retracted. The telescopic device can be a hydraulic cylinder, an electric cylinder or a gas cylinder.

[0057] When the hoisting device is used to drive the temporary track, the temporary track is in a fixed position and can only be relatively extended from the trolley frame 7 when the trolley frame 7 moves forward. After the temporary track is completely extended, it can be pulled back to the bottom of the trolley frame 7 by the hoisting device. The telescopic device can be a hydraulic cylinder, an electric cylinder or a gas cylinder, and the hoisting device can be a hydraulic winch or an electric hoist.

[0058] On the basis of the above embodiment, as a preferred embodiment of the segment rapid transfer system, as shown in Figures 7 to 10As shown, the segment unloading device 3 comprises a chassis 16 for setting the unloading track 45, the lifting frame assembly 18 and the walking wheel assembly 17. The lifting frame assembly 18 comprises two lifting assemblies symmetrically arranged with respect to the unloading track 45, each of which comprises a link one 20, a link two 21 and a telescopic device hinged to the chassis 16, one end of the link one 20 and the link two 21 being hinged through a bracket 23, one end of the telescopic device being hinged at the hinge between the link two 21 and the chassis 16 and the other end being hinged at the hinge between the link one 20 and the bracket 23.

[0059] When the telescopic device is extended, each lifting assembly can form a parallelogram frame body with gradually increasing height, and the segments on the marshalling car can be lifted as a whole to be separated from the marshalling car, and the telescopic device is located at the diagonal position of the parallelogram frame body as the common side of the two triangular structures; when the telescopic device is shortened, each lifting assembly can form a structure similar to a straight line, and the segments above it can be lowered to the lowest position, which can effectively reduce the space occupation and does not affect the lifting movement of the segment crane. The telescopic device can be of the type of oil cylinder, electric cylinder or gas cylinder, etc.

[0060] On the basis of the above embodiment, as a preferred embodiment of the segment rapid transfer system, the telescopic device is a jacking oil cylinder 22 or a jacking electric cylinder, and the lifting frame assembly 18 is arranged in several groups along the length direction of the unloading track 45.

[0061] On the basis of the above embodiment, as a preferred embodiment of the segment rapid transfer system, the segment unloading device 3 is hingedly connected to the segment crane 5 through a towing frame 19 or a towing cable, the towing frame 19 comprising a front towing frame 24 and a rear towing frame 25 hingedly connected, the front towing frame 24 being connected to the segment unloading device 3, and the rear towing frame 25 being connected to the segment crane 5.

[0062] On the basis of the above embodiment, as a preferred embodiment of the segment rapid transfer system, as shown in Figures 11 to 16 As shown, the segment crane 5 comprises a crane frame 26 and a pulley walking trolley 27, a chain transmission mechanism drives the pulley walking trolley 27 to walk along the length direction of the crane frame 26, and the pulley walking trolley 27 is connected to a grabbing mechanism for grabbing the segments through a pulley mechanism.

[0063] On the basis of the above embodiment, as a preferred embodiment of the segment rapid transfer system, the chain transmission mechanism comprises a sprocket 29 arranged at both ends of the crane frame 26 and a chain engaged with the sprocket 29 in the crane frame 26, and the pulley walking trolley 27 is connected between the two end portions of the chain.

[0064] On the basis of the above-mentioned embodiments, as a preferred embodiment of the pipe segment rapid transfer system, the pulley mechanism comprises a plurality of fixed pulleys arranged on the pulley traveling trolley 27 and a plurality of movable pulleys arranged on the grabbing mechanism. A steel wire rope is arranged to sequentially pass through the pulleys in the traveling range of the pulley traveling trolley 27. At least one end of the steel wire rope is connected with an extension device or a winch device.

[0065] As a preferred embodiment, the pipe segment rapid transfer system is applied in a limited space inside a small-diameter shield. A rail changing trolley, a pipe segment unloading device and a pipe segment crane are reasonably and effectively designed to realize the rapid transfer of pipe segments and improve the efficiency of pipe segment transfer and assembly.

[0066] The main structure of the system is described as follows.

[0067] The rear supporting trailer 46 is used to carry the supporting equipment of the shield machine. The marshalling car 2 is used to transport pipe segments, box culverts, slurry, trailer guide rails, pipes and other materials during shield construction. The pipe segment crane 5 is used to hoist the segmented pipe segments on the marshalling car to the pipe segment assembly area of the pipe segment assembly machine. The rail changing trolley 1 provides a temporary track to connect the track in the tunnel with the track on the pipe segment unloading device. The hydraulic winch 12 is used to extend or retract the temporary track, so that the track of the rail changing trolley is always connected with the track in the tunnel during shield tunneling. The pipe segment unloading device 3 is used to unload the pipe segments on the marshalling car from the marshalling car.

[0068] The specific technical scheme and implementation process are as follows.

[0069] As shown in Figures 1 to 16 Fig. 1, the rail changing trolley 1 is connected to the tail of the pipe segment unloading device 3 and is composed of a trolley frame 7, traveling wheels 8, a trolley track 9 and a temporary track 10. The traveling wheels 8 are arranged on both sides of the rail changing trolley 7. In order to reduce the damage of the rail changing trolley 1 to the pipe segments during traveling, the traveling wheels 8 are designed in the form of rubber wheels. The temporary track 10 is arranged below the rail changing trolley 7 and is connected to the ring chain of the hydraulic winch 12. When the shield machine advances, the hydraulic winch 12 releases the ring chain, and the temporary track 10 moves backward relative to the trolley frame 7 to keep the temporary track 10 connected with the track in the tunnel.

[0070] The temporary track 10 is composed of a temporary track frame 13, a temporary track 14 and a pad 15. When the shield machine advances and the temporary track 10 is extended, the marshalling car 2 passes through the track in the tunnel, the temporary track 14 and the trolley track 9 and drives to the area of the pipe segment unloading device 3. The pad 15 designed on the temporary track 10 ensures that the temporary track 10 does not damage the pipe segments. The track on the rail changing trolley 1 is designed in the form of an up-and-down slope track to ensure that the horizontal slope section after the up-and-down slope track can place the temporary track 10 and the hydraulic winch 12 below the rail changing trolley 1, so as not to affect the passing of the marshalling car.

[0071] The pipe segment unloading device 3 is composed of a chassis 16, a walking wheel assembly 17, a lifting frame assembly 18 and a towing frame 19. The walking wheel assembly 17 is arranged on both sides of the chassis 16, and two rows of wheel pairs are arranged on both sides of the chassis 16 to ensure that the pipe segment unloading device 3 can carry and unload a ring of pipe segments. In order to reduce the damage of the track switching trolley 1 to the pipe segments, the walking wheels are designed in the form of rubber wheels. Three groups of lifting frame assemblies 18 are arranged on the pipe segment unloading device 3 to ensure that the pipe segment unloading device 3 can simultaneously unload a ring of pipe segments. Each group of lifting frame assemblies 18 is composed of a connecting rod 1 20, a connecting rod 2 21, a jacking oil cylinder 22 and a bracket 23. The upper side pad of the bracket 23 is designed with a slope surface to adapt to the jacking of the curved surface of the pipe segments.

[0072] The fixed end of the jacking oil cylinder 22 is connected with the chassis 16, and the telescopic end is connected with the connecting rod 1 20 and the bracket 23. One end of the connecting rod 1 20 is connected with the chassis 16, and the other end is connected with the telescopic end of the oil cylinder 22 and the bracket 23. One end of the connecting rod 2 21 is connected with the chassis 16, and the other end is connected with the bracket 23. When the jacking oil cylinder 22 is extended, the connecting rod 1 20, the connecting rod 2 21 and the bracket 23 are lifted, thereby jacking the pipe segments. After the jacking oil cylinder 22 is fully extended, a triangular structure is formed between the jacking oil cylinder 22, the connecting rod 1 20 and the connecting rod 2 21, which ensures that the jacked pipe segments are more stable.

[0073] When the pipe segments are unloaded from the marshalling car 2, the marshalling car 2 retreats towards the outside of the tunnel and drives away. When the marshalling car 2 leaves the area of the pipe segment unloading device 3, the jacking oil cylinder 22 is retracted, and the pipe segments fall. The connection between the connecting rod 1 20, the connecting rod 2 21, the bracket 23 and the jacking oil cylinder 22 on the lifting frame assembly 18 is connected through a hinged connection. The pipe segment unloading device 3 walks on the tunnel wall. After the pipe segments fall, the pipe segment unloading device 3 is attached to the pipe segments. The height space occupied by the pipe segment unloading device 3 is minimized, and the height of the pipe segments is reduced to the lowest, which effectively improves the lifting space of the pipe segment crane.

[0074] The towing frame 4 is composed of a front towing frame 24 and a rear towing frame 25. The front towing frame 24 is designed in an arch shape and is connected with the pipe segment unloading device 3. The front end of the rear towing frame 25 is connected with the rear end of the front towing frame 24 through a hinged connection. The rear towing frame 25 is connected with the pipe segment crane frame 26, which ensures that the pipe segment crane 5 drags the rear towing frame 25 during the tunneling process. The rear towing frame 25 drives the front towing frame 24, and the front towing frame 24 drags the pipe segment unloading device 3 to move. The front towing frame 24 and the rear towing frame 25 are connected through a hinged connection, which ensures that the pipe segment unloading device can adapt to the turning ability during the tunneling process.

[0075] The pipe segment hoist 5 is hinged at the front end with the pipe segment erector 6 and at the rear end with the rear matching trolley. The pipe segment hoist 5 is composed of a pipe segment hoist frame 26, a pulley traveling trolley 27, a grabbing mechanism 28 and the like. Chain wheels two 9 are designed at both ends of the hoist frame 26, and chains are engaged on the chain wheels two 9. The chains are designed inside the hoist frame 26, and the pulley traveling trolley 27 is designed inside the hoist frame 26. One end of the chains is connected with a pull rod one 30, and the other end is connected with a pull rod two 31 after passing through the front and rear chain wheels. The pull rod one and the pull rod two are hinged with the pulley traveling trolley 27. The driving unit drives the motor reducer to rotate, thereby driving the pulley traveling trolley inside the hoist frame to move forward and backward

[0076] A telescopic oil cylinder 33 is designed outside the hoist frame 26, and the telescopic end of the oil cylinder is connected with a pull rod three 34. Two fixed pulleys are designed on the other side of the pull rod three 34. One end of a steel wire rope is connected to the rear end of the hoist frame 26, and then passes through a fixed pulley one 35, a fixed pulley two 36, a fixed pulley three 37, a fixed pulley four 38, a fixed pulley five 39, a fixed pulley six 40, a movable pulley one 41, a fixed pulley seven 42, a movable pulley two 43, a fixed pulley seven 44 in sequence, and then is fixed to the front end of the hoist frame 26. The fixed pulley one 35 and the fixed pulley three 37 are combined and installed inside the pulley traveling trolley frame, and are connected through the pull rod three 34. The pull rod three 34 is installed at the other end of the pulley traveling trolley frame, and the telescopic oil cylinder 33 can drive the pulley traveling trolley 27 to move forward and backward. The fixed pulley two 36 is installed obliquely to ensure that the steel wire rope can pass through the fixed pulley one 35 and the fixed pulley two 36 and then be wound on the fixed pulley three 37. The fixed pulley four 38 is installed horizontally to ensure that the steel wire rope passing through the fixed pulley three 37 and the fixed pulley four 38 can be wound on the fixed pulley five 39. The telescopic oil cylinder 33 pulls the steel wire rope, and then drives the grabbing mechanism 28 to rise through the steel wire rope, thereby driving the pipe segment to rise.

[0077] A heading machine, comprising a pipe segment erector 6 and a rear matching trailer 46 connected with a heading main machine, and further comprising the pipe segment rapid transfer system according to any one of the embodiments. The front end of the pipe segment hoist 5 is connected with the pipe segment erector 6, and the rear end is connected with the rear matching trailer 46. The use process is as follows:

[0078] The locomotive head drives the slag car, the mortar car and the marshalling car 2 towards the tunnel excavation direction. The segment transported on the marshalling car 2 passes through the rail switching trolley 1 to the segment unloading device 3 area. The segment unloading device 3 jacks up the lifting assembly through the lifting oil cylinder 22 to unload the segment on the marshalling car 2. The locomotive head drives the marshalling car to the outside of the tunnel. When the marshalling car 2 leaves the segment unloading device 3 area, the lifting oil cylinder 22 of the segment unloading device 3 is retracted to drive the lifting assembly and the segment on it to fall down. Then the segment crane 5 operates to hoist and transport the segmented segment on the segment unloading device 3 to the assembling machine 6 assembling area. In this embodiment, the front end of the segment crane 5 is connected with the assembling machine 6, and the rear end is connected with the rear matching trolley. When the shield tunneling machine excavates, the segment crane 5 frame drags the rear matching trolley to move forward. The front end of the rail switching trolley 1 is connected to the tail of the segment unloading device 3. The segment unloading device 3 is connected to the segment crane 5 through the dragging frame 4. When the shield tunneling machine excavates, the segment unloading device 3 and the rail switching trolley 1 are driven forward by the segment crane 5. The tunnel track is 9-meter track. New track is needed every 9 meters. When the shield tunneling machine excavates, the segment unloading device 3 and the rail switching trolley 1 are driven forward synchronously. In order to ensure that the track on the rail switching trolley 1 is in real-time communication with the track in the tunnel, a temporary track is designed below the rail switching trolley 1. When the shield tunneling machine excavates, the hydraulic winch releases the chain, and the temporary track extends backward. After extending 9 meters, the hydraulic winch 12 drives the temporary track to retract to below the rail switching trolley. New track is laid in the tunnel, and the new track continues to keep communication with the track on the rail switching trolley.

[0079] The details of the present application are well known to those skilled in the art.

[0080] The above shows and describes the basic principles, main features and beneficial effects of the present application. The above is only a preferred embodiment of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A rapid transfer system for tunnel segments, comprising a tunnel segment crane (5) and a tunnel segment unloading device (3), characterized in that: The segment unloading device (3) is connected to a track-changing trolley (1) at its tail. The track-changing trolley (1) includes a trolley frame (7) with wheels (8) at the bottom. The trolley frame (7) is provided with a trolley track (9) and a retractable temporary track (10) for extending the trolley track (9). The trolley track (9) and the temporary track (10) are used for the marshalling car (2) to pass through the unloading track (45) of the segment unloading device (3). The segment unloading device (3) is provided with a lifting frame assembly (18) for supporting the segments on the marshalling car (2). The segment unloading device (3) includes a base frame (16) for setting the unloading track (45), the lifting frame assembly (18) and the traveling wheel assembly (17). The lifting frame assembly (18) includes two lifting components symmetrically arranged about the unloading track (45). Each lifting component includes a connecting rod one (20), a connecting rod two (21) and a telescopic device that are hinged to the base frame (16). The ends of the connecting rod one (20) and the connecting rod two (21) away from the base frame (16) are hinged through a bracket (23). One end of the telescopic device is hinged at the hinge between the connecting rod two (21) and the base frame (16), and the other end is hinged at the hinge between the connecting rod one (20) and the bracket (23). The segment crane (5) includes a crane frame (26) and a pulley trolley (27). The chain drive mechanism drives the pulley trolley (27) to travel along the length of the crane frame (26). The pulley trolley (27) is connected to a gripping mechanism (28) for gripping segments through the pulley mechanism.

2. The rapid segment transfer system according to claim 1, characterized in that: The traveling wheels (8) are located on both sides of the trolley frame (7), the trolley track (9) is located on the top of the trolley frame (7), and the temporary track (10) is located at the bottom of the trolley frame (7).

3. The rapid segment transfer system according to claim 2, characterized in that: The temporary track (10) is connected to the trolley frame (7) via a telescopic device or a winch device. The bottom of the temporary track (10) is provided with a pad (15) or rollers or pulleys.

4. The rapid segment transfer system according to claim 3, characterized in that: The telescopic device is a lifting oil cylinder (22) or a lifting electric cylinder, and the lifting frame assembly (18) is arranged in several groups at intervals along the length direction of the unloading track (45).

5. The rapid segment transfer system according to any one of claims 1-4, characterized in that: The segment unloading device (3) is connected to the segment crane (5) via a towing frame (19) or a towing sling. The towing frame (19) includes a front towing frame (24) and a rear towing frame (25) that are hinged together. The front towing frame (24) is connected to the segment unloading device (3), and the rear towing frame (25) is connected to the segment crane (5).

6. The rapid segment transfer system according to claim 5, characterized in that: The chain drive mechanism includes sprockets (29) set at both ends of the crane frame (26) and a chain inside the crane frame (26) that meshes with the sprockets (29). A pulley trolley (27) is connected between the two ends of the chain.

7. The rapid segment transfer system according to any one of claims 1-4 and 6, characterized in that: The pulley mechanism includes several fixed pulleys on the pulley trolley (27) and several movable pulleys on the gripping mechanism (28). A steel wire rope is arranged in the travel range of the pulley trolley (27) and passes around each pulley in sequence. At least one end of the steel wire rope is connected to a telescopic device or a winch device.

8. A tunneling machine, comprising a segment assembler (6) connected to the tunneling host and a rear-mounted trailer (46), characterized in that: It also includes the rapid transfer system for tunnel segments as described in any one of claims 1-7, wherein the front end of the tunnel segment crane (5) is connected to the tunnel segment assembly machine (6) and the rear end is connected to the rear-mounted trailer (46).

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