Inclined shaft steel pipe transportation device

Abstract

The present invention discloses an inclined shaft steel pipe transportation device, which relates to the technical field of pipe body transportation equipment; it includes: a sliding winch, which is installed in a flat tunnel section in a working state; a flat tunnel track, which is installed in the flat tunnel section in a working state and is inclined to the inclined shaft section; an inclined shaft track, which is installed in the inclined shaft section in a working state; a transition track, one end of which is hinged to the upper end of the inclined shaft track, and the other end is overlapped with one end of the flat tunnel track directly facing the inclined shaft track, and is adapted to be equipped with a jacking mechanism, which can drive the transition track to flip upward; a transport trolley, which is used to fix and install pipe sections, and can slide on the flat tunnel track, the transition track and the inclined shaft track; wherein, during the transportation of the pipe section, the sliding winch is connected to the pipe section through a sling, and the sling is kept in a tensioned state. The present invention can directly realize the sliding of the pipe section in the flat tunnel section and the inclined shaft section through the same winch, there is no conversion of the lifting equipment, the transportation efficiency is high, and the requirements of the super-high head power station for the construction period are met.

Description

Technical Field

[0001] The invention relates to the technical field of pipe transportation equipment, and in particular to an inclined shaft steel pipe transportation device. Background Art

[0002] Pumped-storage power stations have multiple functions such as peak regulation, valley filling, frequency regulation, phase regulation, energy storage, security, emergency standby and black start, and are an effective way to ensure the safe, reliable, stable and economical operation of the power system. At the same time, pumped-storage power stations are the supporting power sources for the construction of modern smart grids, and are an important part of building a clean, low-carbon, safe, stable, economical and efficient modern power system. Compared with conventional water conservancy and hydropower projects, large-scale pumped-storage power station projects are unique in the fields of reservoir construction, plant layout and unit form. The construction is difficult, the technology is complex, and the safety risk is high, which is also the key technology of engineering construction. Dunhua Pumped Storage Power Station is the first 700m-class high-head power station in China. It has a steep-angle long inclined shaft designed under high-drop conditions, and the use of high-strength steel plates to make pressure steel pipes is a common practice in high-head power stations.

[0003] When installing the penstock, it is necessary to transport the penstock segments from the production vehicle to the installation station for installation. The existing penstock transportation method is mainly to transport the penstock to the transport trolley in the flat tunnel section via a transport flatbed truck, and slide it through the first winch in the flat tunnel section, and lock the transport trolley on the track before entering the upper bend section, and then connect the second winch located above the inclined shaft to the pipe segment, and remove the first winch, and slide it through the second winch in the inclined shaft section to transport the pipe segment to the installation position. Although the existing penstock transportation method can safely transport the pipe segment to the installation station, there is a winch conversion process, which requires secondary adjustment, and the transportation efficiency is low, which does not meet the construction period requirements of the ultra-high head power station. Summary of the invention

[0004] In view of the technical problem that the existing inclined shaft steel pipe transportation requires secondary adjustment, the present invention provides an inclined shaft steel pipe transportation device, which adjusts the pipe section from the flat tunnel section to a posture parallel to the inclined shaft section by rotating the transition track, and can directly release the pipe section in the flat tunnel section and the inclined shaft section by the same winch. There is no need to change the lifting equipment, the transportation efficiency is high, and the construction period requirements of the ultra-high head power station are met.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides an inclined shaft steel pipe transportation device, comprising: a shunting winch, which is installed in a flat tunnel section in a working state; a flat tunnel track, which is installed in the flat tunnel section in a working state and inclined toward the inclined shaft section; an inclined shaft track, which is installed in the inclined shaft section in a working state; a transition track, one end of which is hinged to the upper end of the inclined shaft track and the other end is overlapped with one end of the flat tunnel track facing the inclined shaft track, and the transition track is equipped with a jacking mechanism, which can drive the transition track to flip upward; a transport trolley, which is used for fixing and installing pipe sections, and the transport trolley can slide on the flat tunnel track, the transition track and the inclined shaft track; wherein, during the transportation of the pipe sections, the shunting winch is connected to the pipe sections via slings, and the slings are kept in a tensioned state.

[0007] The inclined shaft steel pipe transportation device provided by the present invention includes a sliding winch, a flat tunnel track, an inclined shaft track, a transition track and a transport trolley. When working, the sliding winch is installed in the flat tunnel section, the flat tunnel track is installed in the flat tunnel section and tilted toward the inclined shaft section; the inclined shaft track is installed in the inclined shaft section, and one end of the transition track is hinged to the upper end of the inclined shaft track, and the other end is overlapped with one end of the flat tunnel track directly facing the inclined shaft track, and the transition track is adapted with a jacking mechanism, and the transport trolley is used to fix and install the pipe section, and the transport trolley can slide on the track. When transporting the inclined shaft steel pipe section, park the transport trolley on the flat tunnel track, then hoist the pipe section on the transport flatbed car onto the transport trolley, weld and fix the pipe section on the transport trolley, connect the sliding winch to the pipe section, release the transport trolley after the sliding winch tightens the sling, and slid the transport trolley through the sliding winch so that the transport trolley slides along the flat tunnel track. When the transport trolley slides to the middle of the transition track, the transition track is driven to flip upward through the jacking mechanism, and the sliding winch remains in a tensioned state, so that the transport trolley rotates upward together with the transition track to adjust the pipe segment from the flat tunnel section to a posture parallel to the inclined shaft section, and then the sliding winch continues to slid the pipe segment along the inclined shaft track to the installation station, so that the pipe segment is slid in the flat tunnel section and the inclined shaft section by the same winch, without the need for conversion of lifting equipment, and the transportation efficiency is high, meeting the construction period requirements of the ultra-high head power station.

[0008] In an optional embodiment of the present application, the jacking mechanism includes: a fixed frame, which is arranged below the transition track and fixedly connected to the inclined shaft track; a jacking frame, one end of the jacking frame is hinged to one end of the transition track facing the horizontal hole track, and the other end is slidably connected to the fixed frame, and the end of the jacking frame connected to the fixed frame can slide along the length direction of the horizontal hole track; a jacking hydraulic cylinder, one end of the jacking hydraulic cylinder is hinged to the jacking frame, and the other end is connected to the horizontal hole track, so as to drive the transition track to flip upward through the contraction of the jacking hydraulic cylinder; wherein, when the transition track is in line with the horizontal hole track, the jacking frame tilts upward to ensure that the jacking mechanism can stably drive the transition track to rotate upward.

[0009] In an optional embodiment of the present application, the lifting hydraulic cylinder is fixedly installed on the outer side of the flat-hole track, and the lifting hydraulic cylinder is arranged parallel to the flat-hole track to avoid interference of the installation of the lifting hydraulic cylinder with the movement of the transport trolley.

[0010] In an optional embodiment of the present application, it also includes a damping cable release, the main body of which is connected between the sliding winch and the pipe section; during the process of the transition track flipping upward, the damping cable release is located above the transition track, and the damping cable release can release a corresponding length of sling according to the inclination angle of the transition track, so that during the process of the transition track flipping upward, the transport trolley is slid by the damping cable release to prevent the transport trolley from sliding down quickly due to the increase in the inclination angle. At the same time, the damping cable release releases a corresponding length of sling according to the inclination angle of the transition track, which can ensure that the transport trolley is always on the transition track during the flipping of the transition track, avoiding the situation where the pipe section is resting on the upper or lower end of the transition track, thereby preventing the transport trolley from derailing.

[0011] In an optional embodiment of the present application, the damping cable release device includes: a mounting frame; a cable reel, the cable reel is rotatably mounted on the mounting frame, the cable reel is used to reel in the sling, and one side wall of the cable reel is provided with an arc-shaped rotation limiting groove; a friction disk, the friction disk is mounted on the mounting frame, and the friction disk abuts against the other side wall of the cable reel; an elastic pressing mechanism, the elastic pressing mechanism is mounted on the mounting frame, and the elastic pressing mechanism is used to press the friction disk against the cable reel; a stopping disk, the stopping disk is fixed to the mounting frame, and the stopping disk is arranged opposite to the cable reel. A piston pin is arranged on one side of the rotation limiting groove, and the piston pin is installed on the mounting frame. There are a plurality of piston pins, and the pin rod portions of the plurality of piston pins are movably inserted in the stop plate, and the ends are inserted in the rotation limiting groove, and the plurality of piston pins are arranged at intervals along the circumference of the rotation limiting groove; wherein, in the process that the inclination angle of the transition track gradually increases, the plurality of piston pins are moved in sequence by the ends of the rotation limiting groove to move the corresponding pin rod ends out of the rotation limiting groove, so as to ensure that the damping cable releaser can slowly release the sling and release the sling of the corresponding length according to the inclination angle of the transition track.

[0012] In an optional embodiment of the present application, the piston pin includes: a piston cylinder, which is a hollow cylindrical structure with closed ends, and the piston cylinder is fixedly mounted on the mounting frame; a driving piston, which is adapted to the piston cylinder, and the driving piston divides the inner cavity of the piston cylinder into a spring cavity and an oil pressure cavity, the spring cavity is adapted to be equipped with a top pressure spring, and the oil pressure cavity is used to connect to a hydraulic oil source; a pin rod, one end of which is fixedly connected to the driving piston, and the other end of which is movable through the stop plate and then movably inserted into the rotation limiting groove, so as to ensure that the piston pin can lock the stop plate in the standby state and release the lock of the stop plate when connected to the hydraulic oil source.

[0013] In an optional embodiment of the present application, a control valve is further included, the control valve comprising: a valve body, the valve body is tiltedly mounted on the transport trolley, a valve cavity is arranged in the valve body, the valve cavity extends along the length direction of the valve body, the valve body is provided with a plurality of connecting flow channels, the plurality of connecting flow channels are arranged at intervals along the length direction of the valve body, the plurality of connecting flow channels are all connected to the valve cavity, the connecting flow channels are used to connect the oil pressure cavity and the hydraulic pump station; a valve stem, the upper end of the valve stem is adapted to the valve cavity, and the upper end of the valve stem is provided with a valve hole for passing The corresponding connecting flow channel is opened through the valve hole by the movement of the valve stem, and a control pin is provided at the lower end of the valve stem; a control rod, one end of the control rod is hinged with the valve body, the rod part is provided with a long hole, and the other end is provided with a counterweight wheel, the control pin is inserted in the long hole, the control pin can slide relative to the long hole, and the counterweight wheel contacts the flat hole track in the working state, so as to automatically control the action of the damping cable releaser through the control valve, thereby ensuring that the damping cable releaser has sufficient reliability, thereby avoiding the safety accident of derailment of the transport trolley.

[0014] In an optional embodiment of the present application, the distance from the elongated hole to the hinged end of the control rod and the valve body is smaller than the distance from the elongated hole to the counterweight wheel, so as to utilize the lever principle to ensure that when the transition track is inclined relative to the flat hole track, the control rod can drive the valve stem to move relative to the valve body along its own length direction.

[0015] In an optional embodiment of the present application, the elastic pressure mechanism includes a plurality of movable rods, and the plurality of movable rods are arranged in parallel; one end of the movable rod is fixedly connected to the friction disk, and the other end is slidably connected to the mounting bracket, and the rod portion of the piston rod is sleeved with a pressure spring, and the pressure spring is located between the mounting bracket and the friction disk to ensure that the elastic pressure mechanism can stably apply real-time positive pressure to the friction plate.

[0016] In an optional embodiment of the present application, a support roller is provided at one end of the transition track facing the horizontal tunnel track. When the transition track is flipped to be colinear with the inclined shaft track, the support roller can provide support for the sling connected between the sled winch and the pipe section, so that when the sled winch slants the pipe section in the inclined shaft, the cable does not come into contact with the rock, soil and other fixed components to produce transitional wear.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] The inclined shaft steel pipe transportation device provided by the present invention comprises a sliding winch, a flat tunnel track, an inclined shaft track, a transition track and a transportation trolley. When working, the sliding winch is installed in the flat tunnel section, the flat tunnel track is installed in the flat tunnel section and inclined toward the inclined shaft section; the inclined shaft track is installed in the inclined shaft section, and one end of the transition track is hinged to the upper end of the inclined shaft track, and the other end is overlapped with one end of the flat tunnel track directly facing the inclined shaft track, and the transition track is adapted to be equipped with a jacking mechanism, the transportation trolley is used to fix and install the pipe section, and the transportation trolley can slide on the track. When transporting the inclined shaft steel pipe section, the transportation trolley is parked on the flat tunnel track, and then the pipe section on the transportation flatbed car is hoisted onto the transportation trolley, and the pipe section is welded and fixed on the transportation trolley. , connect the sliding winch to the pipe segment, release the transport trolley after the sliding winch tightens the sling, and use the sliding winch to slid the transport trolley along the horizontal tunnel track. When the transport trolley slides to the middle of the transition track, the transition track is driven to flip upward by the jacking mechanism, and the sliding winch remains in a tensioned state, so that the transport trolley rotates upward with the transition track to adjust the pipe segment from the horizontal tunnel section to a posture parallel to the inclined shaft section, and then continue to slid the pipe segment through the sliding winch to transport the pipe segment along the inclined shaft track to the installation station, so that the same winch is used to slid the pipe segment in the horizontal tunnel section and the inclined shaft section, without the conversion of lifting equipment, the transportation efficiency is high, and the requirements of the construction period of the super-high head power station are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] In the attached picture:

[0021] Figure 1 It is a structural schematic diagram of the operation state of the inclined shaft steel pipe transportation device according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the inclined shaft track after flipping according to an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a damping cable release device according to an embodiment of the present invention;

[0024] Figure 4 For the embodiment of the present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0025] Figure 5 For the embodiment of the present invention Figure 3 Schematic diagram of the AA surface structure;

[0026] Figure 6 It is a schematic structural diagram of a control valve according to an embodiment of the present invention.

[0027] Marks and corresponding parts names in the attached drawings:

[0028] 100-slip winch;

[0029] 200-flat track;

[0030] 300- Inclined shaft track;

[0031] 400-transition track, 410-fixed frame, 420-lifting frame, 430-lifting hydraulic cylinder, 440-support roller;

[0032] 500-Transport trolley;

[0033] 600-damping cable release device, 610-mounting frame, 620-cable reel, 621-rotation limiting groove, 630-friction disc, 640-elastic pressing mechanism, 641-movable rod, 642-pressing spring, 650-stop disc, 660-piston pin, 661-pin rod, 662-piston cylinder, 663-driving piston, 664-pressing spring;

[0034] 700 - control valve, 710 - valve body, 711 - valve chamber, 712 - connecting flow channel, 720 - valve stem, 721 - valve hole, 722 - control pin, 730 - control rod, 731 - long strip hole, 732 - counterweight wheel. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the device of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. It 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 specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. At the same time, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example

[0038] Combination Figure 1 The present embodiment provides an inclined shaft steel pipe transportation device, comprising: a sliding winch 100, which is installed in the flat tunnel section in a working state; a flat tunnel track 200, which is installed in the flat tunnel section in a working state and is inclined toward the inclined shaft section; an inclined shaft track 300, which is installed in the inclined shaft section in a working state; a transition track 400, one end of which is hinged to the upper end of the inclined shaft track 300 and the other end of which is directly opposite to the inclined shaft track 300 and the flat tunnel track 200. 0 is overlapped at one end, and the transition track 400 is adapted to be equipped with a lifting mechanism, which can drive the transition track 400 to flip upward; a transport trolley 500, the transport trolley 500 is used to fix and install the pipe segment, and the transport trolley 500 can slide on the flat hole track 200, the transition track 400 and the inclined shaft track 300; wherein, during the transportation of the pipe segment, the slinging winch 100 is connected to the pipe segment through a sling, and the sling is kept in a tensioned state.

[0039] It can be understood that the sled winch 100 and the flat tunnel track 200 are installed and fixed in the ground of the flat tunnel section, and the sled winch 100 is installed at the front end of the flat tunnel track 200. The flat tunnel track 200 is inclined toward the inclined shaft section, so that the transport trolley 500 thereon can slide along the flat tunnel track 200 to the inclined shaft track 300 under the action of its own weight without the need to configure a power mechanism, so as to simplify the structure of the transport trolley 500.

[0040] Combination Figure 2 The jacking mechanism includes: a fixed frame 410, which is arranged below the transition track 400 and fixedly connected to the inclined shaft track 300; a jacking frame 420, one end of which is hinged to one end of the transition track 400 facing the flat hole track 200 and the other end is slidably connected to the fixed frame 410, and the end of the jacking frame 420 connected to the fixed frame 410 can slide along the length direction of the flat hole track 200; a jacking hydraulic cylinder 430, one end of which is hinged to the jacking frame 420 and the other end is connected to the flat hole track 200, so as to drive the transition track 400 to flip upward through the contraction of the jacking hydraulic cylinder 430; wherein, when the transition track 400 is in line with the flat hole track 200, the jacking frame 420 tilts upward to ensure that the jacking mechanism can stably drive the transition track 400 to rotate upward. At the same time, when the transition track 400 is flipped to be in line with the inclined shaft track 300, the transition track 400, the lifting frame 420 and the fixing frame 410 form a triangular support mechanism, which can ensure that the transition track 400 has sufficient stability after flipping.

[0041] In this embodiment, the lifting hydraulic cylinder 430 is fixedly installed on the outer side of the flat-hole track 200 , and the lifting hydraulic cylinder 430 is arranged parallel to the flat-hole track 200 to avoid interference of the installation of the lifting hydraulic cylinder 430 with the movement of the transport trolley 500 .

[0042] Generally speaking, a support roller 440 is provided at one end of the transition track 400 facing the flat tunnel track 200. When the transition track 400 is flipped to be colinear with the inclined shaft track 300, the support roller 440 can provide support for the sling connected between the sled winch 100 and the pipe section, so that when the sled winch 100 slid the pipe section in the inclined shaft, the cable did not come into contact with the rock, soil and other fixed components to produce transitional wear.

[0043] It should be noted that, during the upward flipping of the transition track 400, due to the influence of the load of the pipe segment and the shape of the structure in the tunnel, the upward flipping is mostly intermittent and non-uniform. At the same time, during the flipping process, the sling between the sliding winch 100 and the pipe segment needs to be lengthened. If the sliding winch 100 is continued to be used for retracting and releasing, more displacement sensors need to be used, and the control accuracy of the monitoring system and the control system is required to be high. Once one of the sensors fails, it is easy for the length of the sling released by the sliding winch 100 to be greater or less than the actual required length, thereby causing one end of the transport trolley 500 to slip off the transition track 400, resulting in a serious safety accident of the transport trolley 500 derailing. In this regard, the present embodiment also provides a damping cable release device 600.

[0044] When in use, the main part of the damping cable release 600 is connected between the sliding winch 100 and the pipe section; during the process of the transition track 400 flipping upward, the damping cable release 600 is located above the transition track 400, and the damping cable release 600 can release the corresponding length of the sling according to the inclination angle of the transition track 400, so that during the process of the transition track 400 flipping upward, the transport trolley 500 is slid by the damping cable release 600 to prevent the transport trolley 500 from sliding down quickly due to the increase in the inclination angle. At the same time, the damping cable release 600 releases the corresponding length of the sling according to the inclination angle of the transition track 400, which can ensure that the transport trolley 500 is always located on the transition track 400 during the flipping of the transition track 400, avoiding the situation where the pipe section is placed on the upper or lower end of the transition track 400, thereby preventing the transport trolley 500 from derailing.

[0045] Combination Figure 3-Figure 5Specifically, the damping cable release device 600 includes: a mounting frame 610; a cable drum 620, which is rotatably mounted on the mounting frame 610, the cable drum 620 is used to roll up the sling, and a side wall of the cable drum 620 is provided with an arc-shaped rotation limiting groove 621; a friction disk 630, the friction disk 630 is mounted on the mounting frame 610, and the friction disk 630 abuts against the other side wall of the cable drum 620; an elastic pressing mechanism 640, the elastic pressing mechanism 640 is mounted on the mounting frame 610, and the elastic pressing mechanism 640 is used to press the friction disk 630 against the cable drum 620; a stop disk 650, the stop disk 650 is fixed on the mounting frame 610, and the stop disk 650 is directly opposite to the cable drum 6 20 is provided on one side of the rotation-limiting groove 621; a piston pin 660, the piston pin 660 is installed on the mounting frame 610, and a plurality of piston pins 660 are provided, and a pin rod 661 of a plurality of the piston pins 660 is movably inserted in the stop plate 650, and an end portion is inserted in the rotation-limiting groove 621, and a plurality of the piston pins 660 are arranged at intervals along the circumference of the rotation-limiting groove 621; wherein, in the process that the inclination angle of the transition track 400 gradually increases, a plurality of the piston pins 660 are sequentially moved by the end portions of the rotation-limiting groove 621 to move the corresponding pin rod 661 ends out of the rotation-limiting groove 621, so as to ensure that the damping cable releaser 600 can slowly release the sling and release the sling of the corresponding length according to the inclination angle of the transition track 400.

[0046] Combination Figure 4 The piston pin 660 includes: a piston cylinder 662, which is a hollow cylindrical structure with closed ends, and the piston cylinder 662 is fixedly mounted on the mounting frame 610; a driving piston 663, which is adapted to the piston cylinder 662, and the driving piston 663 divides the inner cavity of the piston cylinder 662 into a spring cavity and an oil pressure cavity, and a top pressure spring 664 is adapted in the spring cavity, and the oil pressure cavity is used to connect to a hydraulic oil source; a pin rod 661, one end of which is fixedly connected to the driving piston 663, and the other end of which is movable through the stop plate 650 and then movably inserted into the rotation limiting groove 621, so as to ensure that the piston pin 660 can lock the stop plate 650 in the standby state and release the lock of the stop plate 650 when connected to the hydraulic oil source.

[0047] It can be understood that the elastic pressure mechanism 640 includes a plurality of movable rods 641, and the plurality of movable rods 641 are arranged in parallel; one end of the movable rod 641 is fixedly connected to the friction plate 630, and the other end is slidably connected to the mounting frame 610, and the rod portion of the piston rod is sleeved with a pressure spring 642, and the pressure spring 642 is located between the mounting frame 610 and the friction plate 630 to ensure that the elastic pressure mechanism 640 can stably apply real-time positive pressure to the friction plate.

[0048] In order to facilitate controlling the action of the damping cable release device 600 through a purely mechanical mechanism, this embodiment further provides a control valve 700 to control the action of the damping cable release device 600 through a purely mechanical structure, thereby further improving the safety of the transition track 400 when rotating upward.

[0049] Combination Figure 6 The control valve 700 includes: a valve body 710, the valve body 710 is tiltedly mounted on the transport trolley 500, a valve cavity 711 is arranged in the valve body 710, the valve cavity 711 extends along the length direction of the valve body 710, the valve body 710 is provided with a plurality of communication channels 712, the plurality of communication channels 712 are arranged at intervals along the length direction of the valve body 710, the plurality of communication channels 712 are all communicated with the valve cavity 711, and the communication channels 712 are used to connect the oil pressure cavity and the hydraulic pump station; a valve stem 720, the upper end of the valve stem 720 is adapted to the valve cavity 711, and the upper end of the valve stem 720 is provided with a valve hole 721, so as to pass the displacement of the valve stem 720. The valve hole 721 is used to conduct the corresponding connecting flow channel 712. The lower end of the valve stem 720 is provided with a control pin 722; a control rod 730, one end of which is hinged with the valve body 710, the rod portion is provided with a long hole 731, and the other end is provided with a counterweight wheel 732. The control pin 722 is inserted into the long hole 731, and the control pin 722 can slide relative to the long hole 731. The counterweight wheel 732 contacts the flat hole track 200 in the working state, so as to automatically control the action of the damping cable release 600 through the control valve 700, ensure that the damping cable release 600 has sufficient reliability, and thus avoid the safety accident of the transport trolley 500 derailing. In this embodiment, the end of the control rod 730 connected to the counterweight wheel 732 is a telescopic section to prevent the counterweight wheel 732 from slipping off the flat hole track 200. Thus, during the rotation of the transition track 400, the control rod 730 changes its inclination angle and its length at the same time.

[0050] Furthermore, the distance from the elongated hole 731 to the hinged end of the control rod 730 and the valve body 710 is smaller than the distance from the elongated hole 731 to the counterweight wheel 732, so as to utilize the lever principle to ensure that when the transition track 400 is tilted relative to the flat hole track 200, the control rod 730 can drive the valve stem 720 to move relative to the valve body 710 along its own length direction.

[0051] In summary, the inclined shaft steel pipe transportation device provided in this embodiment includes a sliding winch 100, a flat tunnel track 200, an inclined shaft track 300, a transition track 400, a transport trolley 500, a damping cable release device 600 and a control valve 700. During operation, the sliding winch 100 is installed in the flat tunnel section, the flat tunnel track 200 is installed in the flat tunnel section and tilted toward the inclined shaft section; the inclined shaft track 300 is installed in the inclined shaft section, and one end of the transition track 400 is hinged to the upper end of the inclined shaft track 300, and the other end is overlapped with one end of the flat tunnel track 200 facing the inclined shaft track 300, and the transition track 400 is adapted to be equipped with a jacking mechanism, and the transport trolley 500 is used to fix and install the pipe section, and the transport trolley 500 can slide on the track.

[0052] Therefore, when transporting the inclined shaft steel pipe segment, the transport trolley 500 is parked on the horizontal tunnel track 200, and then the pipe segment on the transport flatbed car is hoisted onto the transport trolley 500, and the pipe segment is welded and fixed to the transport trolley 500, and the sled winch 100 is connected to the pipe segment. After the sled winch 100 tightens the sling, the transport trolley 500 is released, and the transport trolley 500 is slid by the sled winch 100 so that the transport trolley 500 slides along the horizontal tunnel track 200.

[0053] When the transport trolley 500 slides to the middle of the transition track 400, the sled winch 100 brakes and keeps the sling locked, and drives the transition track 400 to flip upward through the jacking mechanism, while the sled winch 100 remains in a tensioned state, so that the transport trolley 500 rotates upward with the transition track 400. When the transition track 400 rotates, the valve body 710 is driven to rotate together, and under the action of the counterweight wheel 732, the control rod 730 rotates downward relative to the transition track 400 to drive the valve stem 720 to move downward relative to the valve body 710, thereby The connecting flow channel 712 at the upper end is connected to the piston pin 660 that contacts the end of the rotation-limiting groove 621 and the hydraulic pump station. The hydraulic oil input by the hydraulic pump station enters the corresponding hydraulic oil chamber, driving the driving piston 663 to squeeze the corresponding top pressure spring 664, and sliding the pin rod 661 out of the rotation-limiting groove 621, so that the cable drum 620 can rotate relative to the stopper disk 650. Through the rotation of the cable drum 620, the corresponding length of the sling is released. During the rotation of the cable drum 620, the friction disk 630 provides friction damping so that the damping cable releaser 600 can slowly release the sling. As the transition track 400 rotates, the pin rods 661 of all the piston pins 660 slide out of the rotation-limiting groove 621, and the sling of the damping cable releaser 600 is released, so that the pipe section is adjusted from the flat tunnel section to a posture parallel to the inclined shaft section. Then, the pipe section is transported to the installation station along the inclined shaft track 300 by continuing to slide through the sliding winch 100. During the process of continuing to slide, the sling contacts the support roller 440 to provide rotational support for the sling through the support roller 440.

[0054] In summary, this embodiment adjusts the pipe segment from the flat tunnel section to a posture parallel to the inclined shaft section by rotating the transition track, and can directly realize the sliding of the pipe segment in the flat tunnel section and the inclined shaft section through the same winch. There is no need to convert the lifting equipment, the transportation efficiency is high, and the construction period requirements of the ultra-high head power station are met.

[0055] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An inclined shaft steel pipe transportation device, characterized in that: include: A sledging winch (100), wherein the sledging winch (100) is installed in the flat tunnel section in a working state; The horizontal tunnel track (200) is installed in the horizontal tunnel section in a working state and is inclined toward the inclined shaft section; Inclined shaft track (300), installed in the inclined shaft section in working state; A transition track (400), one end of which is hinged to the upper end of the inclined shaft track (300), and the other end of which is overlapped with an end of the flat hole track (200) directly facing the inclined shaft track (300), and the transition track (400) is adapted to be equipped with a jacking mechanism, and the jacking mechanism can drive the transition track (400) to flip upward; A transport trolley (500), the transport trolley (500) is used to fix and install the pipe joint, and the transport trolley (500) can slide on the flat hole track (200), the transition track (400) and the inclined shaft track (300); In the process of transporting the pipe segment, the unwinding winch (100) is connected to the pipe segment via a sling, and the sling is kept in a tensioned state.

2. The inclined shaft steel pipe transportation device according to claim 1 is characterized in that: The lifting mechanism comprises: A fixed frame (410), wherein the fixed frame (410) is disposed below the transition track (400), and the fixed frame (410) is fixedly connected to the inclined shaft track (300); A lifting frame (420), one end of the lifting frame (420) is hinged to one end of the transition track (400) facing the flat-hole track (200), and the other end is slidably connected to the fixing frame (410), and the end of the lifting frame (420) connected to the fixing frame (410) can slide along the length direction of the flat-hole track (200); A lifting hydraulic cylinder (430), one end of which is hinged to the lifting frame (420) and the other end of which is connected to the flat hole track (200), so as to drive the transition track (400) to flip upwards through the contraction of the lifting hydraulic cylinder (430); Wherein, when the transition track (400) and the flat-hole track (200) are in a colinear relationship, the lifting frame (420) is tilted upward.

3. The inclined shaft steel pipe transportation device according to claim 2 is characterized in that: The lifting hydraulic cylinder (430) is fixedly mounted on the outside of the flat-hole track (200), and the lifting hydraulic cylinder (430) is arranged in parallel with the flat-hole track (200).

4. The inclined shaft steel pipe transportation device according to claim 1 is characterized in that: It also includes a damping cable release device (600), the main body of which is connected between the release winch (100) and the pipe section; During the process of the transition track (400) flipping upward, the damping cable release device (600) is located above the transition track (400), and the damping cable release device (600) can release a sling of a corresponding length according to the inclination angle of the transition track (400).

5. The inclined shaft steel pipe transportation device according to claim 4 is characterized in that: The damping cable release device (600) comprises: Mounting frame (610); A cable reel (620), the cable reel (620) is rotatably mounted on the mounting frame (610), the cable reel (620) is used to roll up the sling, and a side wall of the cable reel (620) is provided with an arc-shaped rotation limiting groove (621); a friction disc (630), wherein the friction disc (630) is mounted on the mounting frame (610), and the friction disc (630) abuts against the other side wall of the cable winding disc (620); an elastic pressing mechanism (640), the elastic pressing mechanism (640) being mounted on the mounting frame (610), the elastic pressing mechanism (640) being used to press the friction disk (630) against the cable reel (620); A stop plate (650), the stop plate (650) being fixed on the mounting frame (610), and the stop plate (650) being arranged opposite to a side of the cable winding drum (620) where the rotation limiting groove (621) is arranged; A piston pin (660), the piston pin (660) being mounted on the mounting frame (610), and a plurality of the piston pins (660) being provided, wherein the pin rods (661) of the plurality of piston pins (660) are movably inserted in the stop plate (650), and the ends of the plurality of piston pins (660) are inserted in the rotation limiting groove (621), and the plurality of piston pins (660) are arranged at intervals along the circumference of the rotation limiting groove (621); In the process that the inclination angle of the transition track (400) gradually increases, the plurality of piston pins (660) are moved in sequence from the ends of the rotation limiting groove (621) to move the corresponding ends of the pin rods (661) out of the rotation limiting groove (621).

6. The inclined shaft steel pipe transportation device according to claim 5 is characterized in that: The piston pin (660) comprises: A piston cylinder (662), wherein the piston cylinder (662) is a hollow cylindrical structure with both ends closed, and the piston cylinder (662) is fixedly mounted on the mounting frame (610); A driving piston (663), wherein the driving piston (663) is adapted to the piston cylinder (662), and the driving piston (663) divides the inner cavity of the piston cylinder (662) into a spring cavity and an oil pressure cavity, wherein a top pressure spring (664) is adapted to be arranged in the spring cavity, and the oil pressure cavity is used to connect to a hydraulic oil source; A pin rod (661), one end of which is fixedly connected to the driving piston (663), and the other end of which movably passes through the stop plate (650) and is movably inserted into the rotation limiting groove (621).

7. The inclined shaft steel pipe transportation device according to claim 6 is characterized in that: Also included is a control valve (700), the control valve (700) comprising: A valve body (710), the valve body (710) being installed obliquely on the transport trolley (500), a valve cavity (711) being provided in the valve body (710), the valve cavity (711) extending along the length direction of the valve body (710), the valve body (710) being provided with a plurality of communication flow channels (712), the plurality of communication flow channels (712) being arranged at intervals along the length direction of the valve body (710), the plurality of communication flow channels (712) being all in communication with the valve cavity (711), and the communication flow channels (712) being used to connect the oil pressure cavity and the hydraulic pump station; a valve stem (720), wherein the upper end of the valve stem (720) is adapted to the valve cavity (711), and the upper end of the valve stem (720) is provided with a valve hole (721), so that the corresponding communication channel (712) is opened through the valve hole (721) by the movement of the valve stem (720), and the lower end of the valve stem (720) is provided with a control pin (722); A control rod (730), one end of which is hinged to the valve body (710), the rod portion is provided with a long hole (731), and the other end is provided with a counterweight wheel (732), the control pin (722) is inserted into the long hole (731), the control pin (722) can slide relative to the long hole (731), and the counterweight wheel (732) contacts the flat hole track (200) in the working state.

8. The inclined shaft steel pipe transportation device according to claim 7 is characterized in that: The distance from the elongated hole (731) to the hinged end of the control rod (730) and the valve body (710) is smaller than the distance from the elongated hole (731) to the counterweight wheel (732).

9. The inclined shaft steel pipe transportation device according to claim 5, characterized in that: The elastic pressing mechanism (640) comprises a plurality of movable rods (641), and the plurality of movable rods (641) are arranged in parallel; One end of the movable rod (641) is fixedly connected to the friction disk (630), and the other end is slidably connected to the mounting frame (610). The rod portion of the piston rod is sleeved with a pressure spring (642), and the pressure spring (642) is located between the mounting frame (610) and the friction disk (630).

10. The inclined shaft steel pipe transportation device according to any one of claims 1 to 9, characterized in that: A support roller (440) is provided at one end of the transition track (400) facing the flat tunnel track (200); when the transition track (400) is flipped to be in line with the inclined shaft track (300), the support roller (440) can provide support for the sling connected between the sled winch (100) and the pipe segment.

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