CN216508321U

CN216508321U - Transport cable

Info

Publication number: CN216508321U
Application number: CN202122630577.9U
Authority: CN
Inventors: 王振华; 寻凯; 吕伟宏
Original assignee: Zhejiang Tianhong Robot Technology Co ltd
Current assignee: Zhejiang Tianhong Robot Technology Co ltd
Priority date: 2021-10-30
Filing date: 2021-10-30
Publication date: 2022-05-13
Anticipated expiration: 2031-10-30

Abstract

The application discloses a transport cable, which comprises a cable core, a plurality of strands of thick strands and a plurality of strands of thin strands; the thick rope strands are spirally wound around the rope core, the thin rope strands are spirally wound around the rope core, and the thin rope strands and the thick rope strands are distributed in a staggered manner; the diameter of the circumscribed circle of the cross section of the thick strand is larger than that of the circumscribed circle of the cross section of the thin strand, so that a spiral concave structure is formed on the outer surface of the cable, and the cable can be connected with the self-propelled trolley in a matched mode through the spiral concave structure. The beneficial effect of this application: the self-propelled trolley only needs to overcome the inclined component force of the goods when driving the goods to climb along the cable by the cable with the outer surface of the spiral sunken structure; thereby compare with traditional plain noodles cableway, for the dolly of proper motion provides stronger gripping power to guarantee the smooth steady movement that the dolly of proper motion can be more.

Description

Transport cable

Technical Field

The application relates to the field of construction transportation tools, in particular to a low-carbon cableway.

Background

The infrastructure engineering can not leave transport tools, especially the construction of power transmission lines. Most of the power transmission lines in China are located on hills, mountainous areas and mountains, traffic conditions are limited, so that common transport means cannot be used, and in order to ensure normal construction of the power transmission lines, ropeways can be erected, and goods can be transported by cable cars. The traditional cable car is a transport machine which drives a steel wire rope by a driving machine, draws a carriage to run on a track which is laid on the ground along the air and has a certain gradient and is used for lifting or lowering goods. The traditional cableway and cable car are driven by mechanical power, the equipment is complex, the safety is poor and the air pollution is serious, so that the cableway which is simple in structure, low in carbon and environment-friendly and is used for the construction of the power transmission line is urgently needed.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the application is to provide a low-carbon cableway for power transmission line construction, which is more low-carbon and environment-friendly while the transportation capacity of the cableway is improved.

Another object of the present application is to provide a transport cable that can effectively improve the traction capacity of the cable on a self-propelled trolley.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the low-carbon cableway for the construction of the power transmission line comprises a cable and a self-propelled trolley, wherein the cable is obliquely erected on a mountain through a portal frame and comprises a rope core, a plurality of thick rope strands and a plurality of thin rope strands, and the thick rope strands and the thin rope strands are spirally wound around the rope core in a staggered mode, so that the outer surface of the cable forms a spiral concave structure; the self-propelled trolley comprises a frame hanging plate, a driving device and a climbing mechanism, wherein the lower portion of the frame hanging plate is suitable for hanging goods through a lifting hook, the climbing mechanism is installed on the frame hanging plate, the climbing mechanism is suitable for being matched with a cable, the driving device is fixedly installed on the frame hanging plate, the driving device is matched with the climbing mechanism through an output end, so that the climbing mechanism is driven by the driving device to drive the goods to be conveyed along the cable for climbing transportation. It is understood that the cable in which the thick strands and the thin strands are spirally wound can effectively increase the cargo transportation amount under the same driving force as compared with the conventional plain cable.

Preferably, the driving device supplies power through a storage battery, and the storage battery is detachably mounted on the frame hanging plate, so that continuous transportation of the self-propelled trolley is realized by replacing the storage battery.

Preferably, climbing mechanism includes drive division and balanced subassembly, the drive division be suitable for with the cable cooperates the connection, drive arrangement's output with the drive division cooperates the connection, balanced subassembly install in the frame link plate, balanced subassembly be suitable for with the drive division both sides the cable cooperates, so that under drive arrangement's rotary drive, the proper motion dolly passes through the drive division with balanced subassembly with the cooperation of cable comes stable drive goods to carry out the climbing transportation.

Preferably, the cable is formed with a helical tooth surface including a plurality of engaging grooves on an outer surface; the driving part is a tread driving wheel, the tread driving wheel is connected with the output end of the driving device, a matching groove matched with the cable is formed in the circumferential surface of the tread driving wheel, a plurality of meshing teeth are arranged in the matching groove along the circumferential direction, the meshing teeth are spiral, and the tread driving wheel is suitable for being meshed with the meshing grooves of the cable through the meshing teeth, so that the transportation capacity of the self-propelled trolley for goods is improved.

Preferably, the balance assembly is located below the tread driving wheel, the balance assembly comprises a pair of tread tensioning wheels, a balance beam and a hand wheel lead screw, the balance beam is connected with the frame hanging plate in a sliding mode, the tread tensioning wheels are rotatably installed at two ends of the balance beam, the tread tensioning wheels are identical to the tread driving wheel in structure, the hand wheel lead screw is in threaded connection with the frame hanging plate, the upper end of the hand wheel lead screw is connected with the balance beam, the balance beam is suitable for being driven by the hand wheel lead screw to slide up and down along the frame hanging plate, and then the tread tensioning wheels and the cables on two sides of the tread driving wheel are driven to be matched, so that the tread driving wheel can stably drive goods to be transported.

Preferably, the cable forms a face on an outer surface comprising a plurality of helical raceways; the driving part is a driving sliding sleeve, the driving sliding sleeve is rotatably mounted on a limiting plate arranged on the frame hanging plate, two ends of the driving sliding sleeve are provided with baffles, the baffles are matched with the limiting plate so that the axial direction of the driving sliding sleeve is limited, the center of the driving sliding sleeve is provided with a sliding hole, the side part of the sliding hole is provided with a plurality of spiral sliding grooves, a plurality of balls are mounted in the spiral sliding grooves, and the cable passes through the sliding hole and is matched with the balls through the spiral roller path; the outside of drive sliding sleeve is provided with the teeth of a cogwheel along the circumferencial direction, drive arrangement's output through the drive gear of installation with the teeth of a cogwheel meshes, the drive sliding sleeve is suitable for pass through under drive arrangement's the ball is followed spiral raceway's roll, in order to drive the proper motion dolly is followed the cable carries out the climbing and removes, can also improve simultaneously the self-motion dolly is to the transport capacity of goods.

Preferably, the balance assembly comprises a pair of tensioning sleeves, the tensioning sleeves are fixed on two sides of the frame hanging plate, so that the cables located on two sides of the driving sliding sleeve penetrate through the tensioning sleeves, and then the cables between the tensioning sleeves are tensioned to ensure that the driving sliding sleeve is stably matched with the cables.

Preferably, both ends of the cable are fixed on the ground through ground anchors; a supporting hook is fixed at the top of the portal frame and used for hoisting the cable so as to reduce the bending of the cable caused by self weight, and an inclined track is fixed at the top of the portal frame along the extending direction of the cable; the top of the frame hanging plate is rotatably provided with a spanning wheel, and the self-propelled trolley is suitable for passing over the supporting hook through the rolling of the spanning wheel along the inclined track.

Preferably, the thick strand comprises a plurality of first steel wires, the thin strand comprises a plurality of second steel wires, the number of the first steel wires is equal to that of the second steel wires, and the diameter of the first steel wires is larger than that of the second steel wires.

Preferably, the thick strands comprise a plurality of first steel wires, the thin strands comprise a plurality of second steel wires, the first steel wires and the second steel wires have the same diameter, and the number of the first steel wires is greater than the number of the second steel wires.

Preferably, the rope core is a hemp rope or is formed by twisting a plurality of strands of thin steel wires.

Preferably, the working method of the low-carbon cableway comprises the following steps:

s100: interlacing and helically winding a plurality of thick strands and a plurality of thin strands around a core to form a cable, wherein an outer profile surface of the cable is adapted to be a helical tooth surface comprising a plurality of engaging grooves or a filament surface comprising a plurality of helical raceways;

s200: erecting the cable formed in the S100 on a mountain body through a plurality of door frames in an inclined mode, and enabling the self-propelled trolley to be connected with the cable in a matched mode through a driving mechanism;

s300: the goods are suspended at the bottom of the self-propelled trolley, so that the self-propelled trolley is driven by the driving device to be meshed with the spiral tooth surface through the tread driving wheel provided with the meshing teeth, and the goods are driven to be transported along the cable; or the self-propelled trolley is driven by the driving device to be matched with the screw rod of the screw rod surface through the driving sliding sleeve provided with the balls, so that the goods are driven to be transported along the cable.

S400: when the self-propelled trolley drives the goods to move to the position of the portal frame, the barrier-free spanning portal frame can be realized through the cooperation of the spanning wheels arranged at the top of the self-propelled trolley and the inclined tracks arranged at the top of the portal frame.

Compared with the prior art, the beneficial effect of this application lies in:

(1) the spiral sunken structure is formed on the outer surface of the cable, so that when the climbing mechanism of the self-propelled trolley adopts a structure matched with the cable to drive goods to climb along the cable, only the inclined component force of the goods needs to be overcome; therefore, compared with the traditional smooth-surface cableway, the transport capacity of the self-propelled trolley to goods can be effectively improved under the same driving force.

(2) The spiral sunken structure of the outer surface of the cable can be obtained by winding the staggered spiral of the winding rope core of a plurality of strands of thick strands of ropes and a plurality of strands of thin ropes, so that the gripping traction force of the self-propelled trolley on the cable can be improved through a simple structure when the cable is made conveniently, the circumferential force is effectively balanced, the self-propelled trolley is prevented from being twisted in the operation process of the steel wire rope, and the self-propelled trolley can be moved smoothly and stably.

(3) The self-propelled trolley supplies power for the driving device through the storage battery, and the storage battery can be disassembled and replaced, so that the self-propelled trolley can continuously transport cargos. Compared with the traditional fuel driving mode, the electric driving mode is more low-carbon and environment-friendly. In addition, the multipoint driving is suitable for the structural characteristics of the steel wire rope; the traction operation of transmission cable transportation is changed.

(4) Possess the function of independently accessible through middle portal support hook.

Drawings

Fig. 1 is a schematic view of the overall structure of a cableway according to the present application.

FIG. 2 is a force analysis diagram of a self-propelled cart according to one embodiment of the present application.

Fig. 3 is a front view of a self-propelled trolley according to one embodiment of the present application.

FIG. 4 is a side view schematic diagram of a self-propelled cart according to one embodiment of the present disclosure.

FIG. 5 is a schematic view of the engagement of the self-propelled cart with the cable according to one embodiment of the present application.

Fig. 6 is a schematic structural diagram of a gantry in the present application.

Fig. 7 is a schematic view of the self-propelled carriage of the present application in a position to cross the gantry.

FIG. 8 is a schematic view of the tread drive wheel configuration of the present application.

Fig. 9 is a schematic cross-sectional view of a cable in the present application.

Fig. 10 is an axial layout cross-sectional view of a cable in the present application.

FIG. 11 is a schematic view of the tread drive wheel of the present application in engagement with a cable.

Fig. 12 is an enlarged view of the portion a in fig. 11 of the present application.

FIG. 13 is a schematic structural view of a self-propelled cart according to another embodiment of the present application.

FIG. 14 is a schematic view of the present application showing the engagement of the drive sleeve with the cable.

In the figure: the rope comprises a cable 1, an engagement groove 100, a rope core 101, a thick rope strand 102, a thin rope strand 103, a spiral raceway 110, a bicycle carrier 2, a frame hanging plate 21, a hook 211, a spanning wheel 212, a limit plate 213, a tread driving wheel 22, an engagement tooth 221, an engagement groove 220, a balance assembly 23, a tread tensioning wheel 231, a balance beam 232, a hand wheel screw 233, a tensioning sleeve 234, a driving device 24, a driving gear 241, a driving sliding sleeve 25, a sliding hole 250, a baffle 251, a gear tooth 252, a ball 26, a portal frame 3, an inclined track 301, a supporting hook 302, a ground anchor 4 and goods 500.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

As shown in fig. 1 to 14, one aspect of the present application provides a low carbon cableway for power transmission line construction, including a cable 1 and a self-propelled trolley 2, wherein one end of the cable 1 is fixedly mounted on the bottom of a mountain through an earth anchor 4, and the other end of the cable 1 is fixedly mounted on the top of the mountain through the earth anchor 4, so that the cable 1 is integrally erected between mountain bodies in an inclined posture, and thereby cargo 500 is transported by the movement of the self-propelled trolley 2 along the cable 1. The cable 1 comprises a core 101, a plurality of thick strands 102 and a plurality of thin strands 103, the plurality of thick strands 102 and the plurality of thin strands 103 being helically wound around the core 101 in an alternating manner such that the outer surface of the cable 1 forms a helical concave structure. Proper motion dolly 2 includes frame link plate 21, drive arrangement 24 and climbing mechanism, the lower part of frame link plate 21 is passed through lifting hook 211 and is hung goods 500, climbing mechanism installs in frame link plate 21, climbing mechanism is used for coordinating with cable 1 and is connected, drive arrangement 24 fixed mounting is in frame link plate 21, and drive arrangement 24 cooperates with climbing mechanism through the output, so that climbing mechanism drives goods 500 and transports along cable 1 climbing under drive arrangement 24's drive.

In this embodiment, as shown in fig. 1 and 2, the whole of the cable 1 forms an angle α with the horizontal ground, so that when the cargo 500 is suspended below the frame hanging plate 21, the gravity G of the cargo 500 can be decomposed into a force F parallel to the cable 1_L1And a force F perpendicular to the cable 1_R(ii) a From the force analysis, F can be obtained_L1＝G·sinα，F_RG · cos α. For conventional transporting of plain cables, the drive F of the drive device 24 is at least greater than F_L1+ηF_RWherein eta is the static friction coefficient of the smooth cable and the self-propelled trolley 2, i.e. the gravity component F of the goods 500 needs to be overcome when the self-propelled trolley 2 is transported along the smooth cable_L1And the friction force between the self-propelled trolley 2 and the smooth cable. In the present embodiment, since the surface of the cable 1 is in the shape of a spiral, the driving force F of the driving device 24 only needs to overcome the gravity component F of the cargo 500 when the self-propelled trolley 2 transports the cargo along the cable 1_L1That is, the cable 1 of the present embodiment can effectively increase the transportation amount of the self-propelled carriage 2 to the load 500 compared to a plain cable under the same driving force F of the driving device 24.

More specifically, during the transportation of the cargo 500 by the self-propelled trolley 2, the static friction force η F between the self-propelled trolley 2 and the smooth cable is at any moment in time in the conventional smooth cable_RAll require a weight of 500 g or moreForce F_L1Otherwise the bicycle 2 would slip on the surface of the smooth cable and the transport of the goods 500 would not be possible. So eta F_RMinimum value of F_L1I.e. the driving force F of the driving means 24 is more than or equal to twice F_L1(ii) a That is, the cable 1 of the present embodiment can increase the transportation amount at least twice under the same driving force.

In this embodiment, the driving device 24 is a conventional device, and may include a motor and a speed reducer, an output end of the motor is connected to an input end of the speed reducer, and an output end of the speed reducer is connected to the driving portion, so that the speed reducer increases the driving torque by reducing an output rotation speed of the motor. Meanwhile, the frame hanging plate 21 is provided with a detachable storage battery and a standby battery, so that the driving device 24 is powered by the storage battery, and the continuous transportation of the self-propelled trolley 2 can be maintained by replacing the storage battery. Compare traditional fuel mechanical type drive mode, the low carbon environmental protection more of the proper motion dolly 2 of this embodiment.

In this embodiment, the number of the thick strands 102 and the thin strands 103 may be set according to actual needs, for example, as shown in fig. 9, the number of the thick strands 102 and the thin strands 103 is three, and the three thick strands 102 and the three thin strands 103 are distributed in a staggered manner along the circumferential direction of the core 101 and are wound around the core 101 in a spiral direction.

In this embodiment, as shown in fig. 9 and 10, the thick strand 102 includes a plurality of first steel wires, and the thin strand 103 includes a plurality of second steel wires. In order to ensure that the overall cross-sectional diameter dimension of the thick strands 102 is larger than that of the thin strands 103 to form a desired helical concave structure; the number of first steel filaments and second steel filaments in each strand may be kept equal, but the diameter of the first steel filaments is larger than the diameter of the second steel filaments; it is also possible to keep the first and second steel filament diameters equal, but the number of first steel filaments per strand is larger than the number of second steel filaments per strand.

In this embodiment, the rope core 103 may be made of hemp rope, or may be made of a plurality of thin steel wires by twisting.

In this embodiment, as shown in fig. 1, the ground anchor 4 has a pit anchor structure. Two ends of the cable 1 are effectively and fixedly connected with the anchor blocks so as to have anchoring and traction effects with enough margin.

In the present embodiment, as shown in fig. 3 to 5 and fig. 13 and 14, the climbing mechanism includes a driving portion and a balancing assembly 23, the driving portion is used for being connected with the cable 1 in a matching manner, and the output end of the driving device 24 is also matched with the driving portion to drive the driving portion. The balance component 23 is mounted on the frame hanging plate 21, and the balance component 23 is used for matching with the cables 1 on two sides of the driving part, so as to ensure that the self-propelled trolley 2 drives the goods 500 to stably transport on a climbing slope along the cables 1 through the mutual matching of the driving part and the balance component 23 under the rotary driving of the driving device 24.

In one embodiment of the present application, as shown in fig. 3 to 5 and 8 to 12, the outer surface of the cable 1 may be regarded as a helical tooth surface structure including a plurality of engaging grooves 100. The driving part is a tread driving wheel 22, the tread driving wheel 22 is positioned above the cable 1, and the tread driving wheel 22 is connected with the output end of a driving device 24 so that the tread driving wheel 22 rotates under the driving of the driving device 24; the circumferential surface of the tread driving wheel 22 is provided with a matching groove 220 adapted to the cable 1, and the matching groove 220 is U-shaped so as to ensure that the cable 1 can be stably matched with the tread driving wheel 22 along the matching groove 220; the fitting groove 220 is provided with a plurality of engagement teeth 221 in a circumferential direction, and each engagement tooth 221 is helical. When the tread driving wheel 22 is matched with the cable 1, the tread driving wheel can be meshed with the meshing groove 100 through the meshing teeth 221 to form a transmission structure similar to a rack and pinion, so that the self-propelled trolley 2 does not need to consider the situation of slipping when the goods 500 are transported along the cable 1, and the transportation capacity of the goods 500 is improved.

In this embodiment, as shown in fig. 10, the depth of the engaging groove 100 in the axial section of the cable 1 is k, and in order to ensure the transmission stability of the engaging teeth 221 and the engaging groove 100, k is 5% -20%, preferably 10%, of the radius of the circumscribed circle of the cable 1.

In this embodiment, as shown in FIG. 3, the force exerted on the tread drive wheel 22 by the engagement and rolling of the cable 1 can be analyzed, and the drive device 24 is connected toThe circumferential driving force of the over-output end to the tread driving wheel 22 is F_N1When the engagement teeth 221 of the tread driving wheel 22 engage with the engagement grooves 100, the circumferential driving force F of the tread driving wheel 22_N1The cable 1 can generate a reaction force F in the axial direction of the cable 1 by pressing the engaging groove 100 with a component force in the normal direction of the spiral direction of the engaging teeth 221_L2And a support reaction force F in the circumferential direction_N2In which axial bearing reaction force F_L2Can be used for counteracting the gravity component F of the goods 500 on the self-propelled trolley 2_L1To enable the transport of cargo 500; and a support reaction force F in the circumferential direction_N2This results in a self-rotation of the cable 1, which in turn results in a swinging movement of the self-propelled carriage 2 along the cable 1 and a twisting run of the cable 1.

In this embodiment, the circumferential reaction force F generated by the tread driving wheel 22 moving in cooperation with the cable 1 is balanced_N2. As shown in fig. 3 to 5, the balance assembly 23 is located below the tread driving wheel 22, and the balance assembly 23 includes a pair of tread tensioning wheels 231, a balance beam 232, and a hand wheel screw 233. Wherein compensating beam 232 and frame link plate 21 sliding connection, two tread take-up pulleys 231 rotate respectively and install in compensating beam 232 both ends to make two tread take-up pulleys 231 slide from top to bottom along frame link plate 21 under compensating beam 232's drive, and then can cooperate the cable 1 of tread drive wheel 22 both sides, and tread take-up pulley 231 is the same with tread drive wheel 22 structure, so that tread take-up pulley 231 all produces with circumference counter-force F in the both sides of cable 1_N2Equal and opposite forces, thereby realizing the circumferential support reaction force F_N2Carry out the balance, and then guarantee that proper motion dolly 2 drives goods 500 and stabilizes the transportation along cable 1. Meanwhile, the hand wheel screw rod 233 is in threaded connection with the frame hanging plate 21, and the upper end of the hand wheel screw rod 233 is connected with the balance beam 232, so that the balance beam 232 can slide up and down along the frame hanging plate 21 under the rotation of the hand wheel screw rod 233 along the threads of the frame hanging plate 21, and the balance beam 232 is ensured to drive the tread tension wheel 231 to keep continuous stability with the matching of the cable 1.

In one embodiment of the present application, as shown in fig. 13 and 14, the outer surface of the cable 1 may be considered as a lead surface structure comprising a plurality of helical raceways 100. A pair of limiting plates 213 are fixed in the middle of the frame hanging plate 21; the driving part is a driving sliding sleeve 25, the driving sliding sleeve 25 is rotatably connected with the limit plate 213, and the driving sliding sleeve 25 is matched with the side part of the limit plate 213 through a baffle 251 arranged at two ends, so that the driving sliding sleeve 25 is integrated with the frame hanging plate 21 in the axial direction. A sliding hole 250 is formed in the center of the driving sliding sleeve 25, a plurality of spiral sliding grooves are formed in the side portions of the sliding hole 250, and a plurality of balls 26 are mounted in the spiral sliding grooves; when the driving sliding sleeve 25 is matched with the cable 1, the cable 1 passes through the sliding hole 250 and is matched with the ball 26 through the spiral raceway 110 to form a screw slider transmission structure. Gear teeth 252 are arranged on the outer side of the driving sliding sleeve 25 along the circumferential direction, and the driving device 24 is fixedly mounted on the limit plate 213, so that the extending direction of the output end of the driving device 24 is parallel to the axial direction of the driving sliding sleeve 25; the driving gear 241 is installed at the output end of the driving device 24, and the driving gear 241 is meshed with the gear teeth 252, so that the driving sliding sleeve 25 rotates under the driving of the driving device 24, and the rotation of the driving sliding sleeve 25 drives the balls 26 to roll along the spiral raceway 110, thereby driving the driving sliding sleeve 25 to rotate and move along the cable 1. When the driving sliding sleeve 25 is driven by the driving device 24, it rotates around the limiting plate 213, and the axial movement of the driving sliding sleeve 25 is limited by the limiting plate 213, so that the driving sliding sleeve 25 can drive the whole self-propelled trolley 2 to move up and down along the cable 1, thereby realizing the transportation of the goods 500.

It can be understood that the screw-slider transmission structure formed by the cable 1 and the driving sliding sleeve 25 via the spiral raceway 110 does not need to consider the problem of slipping during the transportation of the cargo 500, and the rolling friction force of the balls 26 is small, so that the driving force of the driving device 24 only needs to be slightly larger than the gravity component F of the cargo 500_L1Can realize 500 transports of goods to compare traditional plain noodles cable, this embodiment screw rod slider transmission structure's cable 1 and drive sliding sleeve 25 also can effectual improvement 500 transport volume of goods.

In this embodiment, when the cable 1 is engaged with the driving sliding sleeve 25, the cable 1 bends at two sides of the driving sliding sleeve 25 under the gravity of the cargo 500, and then when the driving sliding sleeve 25 moves along the cable 1, the bent portion may affect the rolling of the balls 26, thereby increasing the resistance when the driving sliding sleeve 25 moves. Therefore, as shown in fig. 13, the balance assembly 23 includes a pair of tensioning sleeves 234, two tensioning sleeves 234 are respectively fixed on both sides of the frame hanging plate 21, and the tensioning sleeves 234 are coaxial with the driving sliding sleeve 25, so that the cables 1 on both sides of the driving sliding sleeve 25 pass through the tensioning sleeves 234 to tension the cables 1 between the tensioning sleeves 234, thereby ensuring that the shaft sections of the driving sliding sleeve 25 engaged with the cables 1 can keep a stable straight state.

One of the embodiments of this application, as shown in fig. 1, in order to prevent that cable 1 from leading to cable 1 to form great crooked radian under the action of self gravity because the span between mountain top and the mountain bottom is great, thereby cause the removal difficulty of dolly 2 by oneself, can set up a plurality of portal 3 between mountain top to the mountain bottom, carry out the segmentation support to cable 1 through portal 3, thereby can guarantee that cable 1 in each section can both keep taut straight state, in order to satisfy the requirement of traveling of dolly 2 by oneself.

Specifically, the number of the gantries 3 may be set according to actual needs, for example, as shown in fig. 1, the number of the gantries 3 is three, which are an upper gantry, a lower gantry and a middle gantry. Wherein, the upper door frame and the lower door frame are respectively arranged on the mountain top and the mountain bottom, the upper door frame and the lower door frame have enough strength and rigidity, and the upper door frame and the lower door frame can support the final end and the initial end of the cable 1 so as to ensure that the self-propelled trolley 2 has enough operation space. The middle portal frame is arranged in the middle of the mountain body, so that the cable 1 is divided into two sections through the middle portal frame, the integral gravity center of the cable 1 is separated, and the two sections are guaranteed to have enough tension to meet the running requirement of the self-propelled trolley 2; meanwhile, the middle portal frame can also be used for meeting the direction change requirement of the cable 1 due to the influences of terrain, obstacles, height and the like.

In this embodiment, as shown in fig. 6 and 7, a hook 302 is fixed to the top of the gantry 3, and the hook 302 is used to lift the cable 1 to reduce the bending of the cable 1 due to its own weight. In order to ensure that the self-propelled trolley 2 can stably cross the portal 3 when passing through the portal 3, an inclined track 301 can be fixedly arranged at the top of the portal 3 along the extending direction of the cable 1, the track sections of the inclined track 301 at two sides of the portal 3 are distributed in a splayed shape, and meanwhile, a spanning wheel 212 is rotatably arranged at the top of the frame hanging plate 21, so that when the self-propelled trolley 2 moves to be close to the portal 3, the self-propelled trolley 2 firstly ascends along the track section at one side and moves, and in the process of moving upwards the self-propelled trolley 2, the cable 1 is lifted from a hook 302 through a driving part and a balance assembly 23, so that the self-propelled trolley 2 can span the hook 302; the self-propelled carriage 2 then moves down along the section of track on the other side of the mast 3, during which the cable 1 is replaced in the hook 302 by the drive and counterbalance assembly 23, during the downward movement of the self-propelled carriage 2. So that the self-propelled carriage 2 can pass through the portal 3 without hindrance by cooperation of the inclined rail 301 and the straddle wheel 212.

Another aspect of the application provides a working method of a low-carbon cableway for power transmission line construction, which comprises the following steps:

s100: a plurality of thick strands 102 and a plurality of thin strands 103 are alternately helically wound around a core 101 to form a cable 1, and the outer profile surface of the cable 1 may be a helical flank comprising a plurality of engaging grooves 100 or a filament surface comprising a plurality of helical raceways 110.

S200: the cable 1 formed in the step S100 is obliquely erected on a mountain body through a plurality of door frames 3, and the self-propelled trolley 2 is connected with the cable 1 in a matching manner through a driving mechanism.

S300: the goods 500 are suspended from the bottom of the self-propelled trolley 2, so that the self-propelled trolley 2 is driven by the driving device 24 to transport the goods 500 along the cable 1 through the meshing of the meshing teeth 221 arranged on the tread driving wheel 22 and the meshing grooves 100 on the spiral tooth surfaces. Or the self-propelled trolley 2 is driven by the driving device 24 to drive the goods 500 to be transported along the cable 1 through the ball 26 arranged on the inner side of the driving sliding sleeve 25 to match along the screw rod of the spiral raceway 100 on the screw rod surface.

S400: when the self-propelled trolley 2 drives the goods 500 to move to the position of the portal 3, the portal 3 can be freely crossed by the cooperation of the crossing wheels 212 arranged on the top of the self-propelled trolley 2 and the inclined tracks 301 arranged on the top of the portal 3.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. A transport cable, comprising:

a rope core;

a plurality of thick strands helically wound around the core; and

a plurality of fine strands which are spirally wound around the core and are alternately distributed between the fine strands and the coarse strands; the diameter of the circumscribed circle of the cross section of the thick strand is larger than that of the circumscribed circle of the cross section of the thin strand, so that a spiral concave structure is formed on the outer surface of the cable, and the cable can be connected with the self-propelled trolley in a matched mode through the spiral concave structure.

2. A transport cable as claimed in claim 1, wherein: the cable forms a spiral tooth surface structure comprising a plurality of engaging grooves on the outer surface, so that the self-propelled trolley is engaged with the engaging grooves through a tread driving wheel provided with engaging teeth.

3. A transport cable as claimed in claim 1, wherein: the cable forms a screw rod surface structure comprising a plurality of spiral rolling paths on the outer surface; so that the self-propelled trolley is in screw rod fit with the spiral roller path through a driving sliding sleeve provided with balls.

4. A transport cable as claimed in claim 1, wherein: the rope core is a hemp rope or is formed by twisting a plurality of strands of thin steel wires.

5. A transporting cable as claimed in any one of claims 1-4, wherein: the thick strand comprises a plurality of first steel wires, the thin strand comprises a plurality of second steel wires, the number of the first steel wires is equal to that of the second steel wires, and the diameter of the first steel wires is larger than that of the second steel wires, so that the diameter of a circumscribed circle of a cross section of the thick strand is larger than that of the circumscribed circle of the cross section of the thin strand.

6. A transporting cable as claimed in any one of claims 1-4, wherein: the thick strand comprises a plurality of first steel wires, the thin strand comprises a plurality of second steel wires, the first steel wires and the second steel wires are equal in diameter, and the number of the first steel wires is greater than that of the second steel wires, so that the cross-sectional circumscribed circle diameter of the thick strand is greater than that of the thin strand.