Gantry tower for freight cableway

Abstract

The invention relates to the technical field of cableway portal frames, in particular to a freight cableway portal frame which comprises a cross beam, connecting pieces are arranged at the left end and the right end of the cross beam, two supporting columns are arranged on the left side and the right side of the cross beam, the two supporting columns are hinged to the connecting pieces, each connecting piece comprises a bottom plate and a connecting frame, and the bottom plate is welded and fixed to the bottom of the cross beam; the connecting frame comprises a horizontal plate and two vertical plates, the bottom plate and the horizontal plate are stacked and attached and are connected through fastening bolts, the two vertical plates are arranged at the lower end of the horizontal plate, and an auxiliary supporting mechanism is arranged between the two connecting pieces and the cross beam; the auxiliary supporting mechanism is arranged between the two connecting pieces and the cross beam, so that the cross beam is supported by the auxiliary supporting mechanism in an auxiliary mode, and the stress bearing strength of the cross beam is improved; according to the invention, the tightened steel wire rope is utilized to act on the bottom of the cross beam, so that an upward lifting force is exerted on the cross beam, and the stress bearing strength of the cross beam is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cableway door frames, in particular to a freight cableway door-type tower frame. Background Art

[0002] Freight ropeway refers to a ropeway system used to transport goods. It is mostly used in power grid projects, industrial and mining enterprises and mountainous areas. Freight ropeways mainly include single-line circulating ropeways and double-line circulating ropeways. The traditional freight ropeway gantry adopts H-shaped steel beams, and the weight of a single piece is too large. The erection method is to first erect the legs at both ends of the gantry, and then erect the middle beam.

[0003] Saddles will be set up on both sides of the middle crossbeam. The saddles are used to hang load-bearing ropes and circulating ropes. The load-bearing ropes are used to bear the weight of the goods. At the same time, the circulating ropes will pull the goods along the load-bearing ropes to realize long-distance transportation of goods.

[0004] For example, a new type of freight ropeway gantry and its erection tooling and erection method with publication number CN117023430A, the gantry includes a main leg and an oblique leg assembly, which are rotatably connected through different connecting parts and pin shafts, and the crossbeam is connected to the leg assembly and the angle can be adjusted; the erection tooling includes an erection crossbar, the oblique leg is separated from the crossbeam and is connected to the erection crossbar through an adjustable connecting assembly; the erection method includes the steps of presetting the height, connecting the oblique leg, fixing the connecting crossbar, connecting the main leg, adjusting the angle, etc.; through the first leg and the second leg, when erecting, the first leg and the second leg are separated and fixed in position through the erection crossbar, and then the crossbeam is gradually lifted through the cooperation of the pull rope and the erection crossbar, and the gantry is assembled in a "top-down" erection method. After the erection is completed, it is used as an oblique leg for triangular support, which reduces the use of heavy equipment and improves the erection efficiency.

[0005] The above-mentioned prior art strengthens the supporting effect of the beam by setting main legs and oblique legs, and realizes the connection and fixation between the legs and the beam through connecting components. Although multiple legs are set to improve the supporting effect of the beam, when the saddles on both sides of the beam are subjected to force, their force will be transmitted to the beam, which will increase the bearing force in the middle of the beam. When the force exceeds the maximum bearing stress of the beam, there is a risk of the beam breaking from the middle, and the above-mentioned prior art is to strengthen the support at the end of the beam, it does not consider the risk of the beam breaking after bearing the maximum stress; although many of the prior art use beams of different structural shapes to improve their stress bearing strength, no matter what the structural shape of the beam is, when the force it bears exceeds its own stress strength, there is still a risk of breaking. In this regard, there is currently no effective solution. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a freight ropeway portal tower, which adopts the following technical solution.

[0007] A freight ropeway portal tower comprises a crossbeam, connecting pieces are provided at both ends of the crossbeam, two support columns are provided on both sides of the crossbeam, and the two support columns are hinged on the connecting piece, the connecting piece comprises a bottom plate and a connecting frame, the bottom plate is welded and fixed to the bottom of the crossbeam, the connecting frame comprises a horizontal plate and two vertical plates, the bottom plate and the horizontal plate are stacked and fit together and connected by fastening bolts, the two vertical plates are arranged at the lower end of the horizontal plate, and an auxiliary support mechanism is provided between the two connecting pieces and the crossbeam.

[0008] The auxiliary support mechanism includes an upright rectangular column, a locking disc is provided on the top of the rectangular column, a through hole is opened in the middle of the rectangular column and the locking disc, and a steel wire rope is passed through the through hole; two rectangular holes are symmetrically opened on the front and back sides of the bottom plate and the horizontal plate, and the rectangular hole is set as a circular hole on one side close to the middle of the bottom plate. After the rectangular column slides along the rectangular hole into the circular hole, it rotates 90° in the circular hole.

[0009] Preferably, a steering pulley assembly is provided above the positioning disc, and multiple groups of supporting pulley assemblies are provided at the lower end of the beam. The wire rope passes through the through-hole on the left side of the beam and then passes through the steering pulley assembly above it, and then passes through the multiple groups of supporting pulley assemblies arranged below the beam in sequence, and then passes through the steering pulley assembly and the corresponding through-holes on the right side of the beam. The height of the steering pulley assembly is higher than that of the supporting pulley assembly, so that the part of the wire rope located between the left and right sides of the beam presents a "V" shape.

[0010] Preferably, two locking columns are symmetrically provided at the bottom of the locking disc, and the two locking columns are distributed along the length direction of the rectangular column. Locking holes are opened on the bottom plate in the left and right directions of the circular hole. When the rectangular column rotates 90° in the circular hole and the rectangular column drives the locking disc to move downward, the locking columns are inserted into the locking holes.

[0011] Preferably, the rectangular column is provided with a cylinder located below the horizontal plate and slides longitudinally, a rectangular slider is rotatably sleeved on the outer wall of the cylinder, a track frame is provided at the bottom of the horizontal plate, the rectangular slider slides in the track frame, a gear is provided on the cylinder and at the bottom of the rectangular slider, sliding bars are slidably provided on the left and right sides of the bottom of the track frame, and a linear rack meshing with the gear is provided on one of the sliding bars.

[0012] Preferably, a rectangular plate is commonly provided at one end of the two sliding bars toward the middle of the horizontal plate, and a triangular pushing block is provided on the side of the rectangular plate toward the gear. The slope of the triangular pushing block is arranged at the bottom and toward the direction of the gear, and an interference hole cooperating with the triangular pushing block is opened on the bottom side wall of the rectangular column; when the rectangular column rotates 90°, the triangular pushing block starts to cooperate with the interference hole to drive the rectangular column to move downward.

[0013] Preferably, a U-shaped plate is provided at the bottom of the track frame. A strip-shaped perforation for the movement of the steel wire rope is provided in the middle of the U-shaped plate. Two support plates are slidably provided at the inner bottom of the U-shaped plate. The distance between the two support plates is smaller than the width of the rectangular column. A connecting rod is connected between the sliding strip and the support plate. On the opposite sides of the two support plates and on the side facing the rectangular plate, there are notches. An inclined plate inclined downward is provided at the notches. The distance between the two notches is greater than the length of the rectangular column.

[0014] Preferably, an extension plate is provided at the upper end of the rectangular plate. A connecting plate is provided inside the track frame and between the rectangular plate and the U-shaped plate. A tension spring is provided between the extension plate and the connecting plate. A first fixed pulley is provided on the side of the connecting plate背离 the extension plate. A second fixed pulley is provided outside one side of the track frame. A rope is connected to the extension plate. The other end of the rope passes through the connecting plate, then passes through the first fixed pulley, and then passes through to the outside of the track frame and then passes through the second fixed pulley.

[0015] Preferably, two columns are symmetrically provided at the middle position of the bottom of the horizontal plate. A cross plate is jointly provided between the bottoms of the two columns. A threaded rod is rotatably provided on the cross plate. A pulling plate is jointly slidably provided between the two columns and above the cross plate. The threaded rod and the pulling plate are connected by threaded penetration. The ends of the two ropes distributed front and back are connected to the pulling plate.

[0016] Preferably, the steering pulley assembly includes a U-shaped frame. The U-shaped frame is provided on the side of the rectangular slider facing the outside of the horizontal plate. A steering bracket is provided at the top of the U-shaped frame. A steering pulley located above the rectangular column is provided on the steering bracket. The steel wire rope is wound around the steering pulley. Two symmetrically arranged elongation rods are provided at the bottom of the U-shaped frame. Guide sliding rails are provided at the left and right sides of the track frame at the bottom of the horizontal plate. A sliding strip is slidably provided on the guide sliding rail, and the sliding strip is connected to the elongation rod.

[0017] Preferably, the supporting pulley assembly includes a mounting frame. The mounting frame is welded and fixed to the bottom of the cross beam. A rotating shaft is rotatably provided at the lower end of the mounting frame. A number of supporting pulleys corresponding to the steel wire rope one by one are provided on the rotating shaft. The steel wire rope is wound around the bottom of the supporting pulley. The heights of a number of supporting pulleys distributed from the middle of the cross beam to both sides gradually increase.

[0018] In summary, the present invention includes the following beneficial technical effects: 1. An auxiliary support mechanism is provided between the two connecting members and the cross beam in the present invention to realize the auxiliary support and bearing of the cross beam by the auxiliary support mechanism, and improve the stress-bearing strength of the cross beam; that is, the present invention utilizes the taut steel wire rope to act on the bottom of the cross beam to realize an upward lifting force on the cross beam, thereby improving the stress-bearing strength of the cross beam.

[0019] 2. The rectangular column of the present invention slides along the rectangular hole into the circular hole, and then the rectangular column rotates 90° in the circular hole so that the width direction of the rectangular column is the same as the length direction of the rectangular hole. At this time, the rectangular column will be restricted in the circular hole and cannot slide in the rectangular hole.

[0020] 3. After passing through the hole on the left side of the beam, the wire rope passes through the steering pulley assembly above it, and then passes through the multiple sets of supporting pulley assemblies arranged under the beam in sequence, and then passes through the steering pulley assembly and the corresponding hole on the right side of the beam. The part of the wire rope between the left and right sides of the beam presents a "V" shape, and the wire rope has the supporting force to lift the supporting pulley assembly, that is, the beam has the supporting force to support upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure among the crossbeam, connecting member, support column and auxiliary support mechanism of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure among the auxiliary support mechanism, the bottom plate and the horizontal plate of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure among the bottom plate, horizontal plate and vertical plate of the present invention.

[0025] Figure 5 The structure diagram of the auxiliary support mechanism of the present invention is shown in FIG. Figure 1 .

[0026] Figure 6 It is a schematic diagram of the structure among the rectangular column, the locking disc, the steel wire rope, the cylinder and the rectangular slider of the present invention.

[0027] Figure 7 The structure diagram of the auxiliary support mechanism of the present invention is shown in FIG. Figure 2 .

[0028] Figure 8 The present invention Figure 7 A partial enlarged view of point A.

[0029] Fig. 9 The structure diagram of the auxiliary support mechanism of the present invention is shown in FIG. Figure 3 .

[0030] Fig.10 The present invention Fig. 9 A partial enlarged view of point B.

[0031] Fig.11 It is a schematic diagram of the structure among the U-shaped plate, the supporting plate, the rectangular column, the triangular pushing block and the tension spring of the present invention.

[0032] Fig.12 The structure diagram of the auxiliary support mechanism of the present invention is shown in FIG. Figure 4 .

[0033] Fig.13 The present invention Fig.12 A partial enlarged view of point C.

[0034] Fig.14 It is a structural schematic diagram of the supporting pulley assembly of the present invention.

[0035] Description of reference numerals: 1, crossbeam; 10, saddle; 12, load-bearing rope; 13, loop rope; 11, electric lifting device; 2, connector; 21, bottom plate; 22, horizontal plate; 23, vertical plate; 3, support column; 4, auxiliary support mechanism; 41, rectangular column; 411, clamping disc; 412, through hole; 5, wire rope; 24, rectangular hole; 25, round hole; 413, clamping column; 26, clamping hole; 6, steering pulley assembly; 7, supporting pulley assembly; 42, cylinder; 43, rectangular slider; 44, track frame; 421, gear; 422, slide bar; 45 , rectangular plate; 451, triangular push block; 414, resistance hole; 46, U-shaped plate; 461, strip perforation; 462, support plate; 463, connecting rod; 464, inclined plate; 452, extension plate; 47, connecting plate; 471, fixed pulley one; 472, fixed pulley two; 473, tension spring; 48, rope; 8, column; 81, cross plate; 82, threaded rod; 83, pulling plate; 61, U-shaped frame; 62, steering bracket; 63, steering pulley; 64, extension rod; 65, guide rail; 66, slide bar; 71, mounting frame; 72, rotating shaft; 73, supporting pulley. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 14 The present invention is described in further detail.

[0037] See also Figure 1 A freight ropeway portal tower comprises a crossbeam 1, connecting pieces 2 are provided at both ends of the crossbeam 1, and two support columns 3 are provided on both sides of the crossbeam 1, and the two support columns 3 are hinged on the connecting piece 2. It can be seen that the crossbeam 1 of the present invention is connected to the support columns 3 through the connecting piece 2, and the installation and erection of the crossbeam 1 is supported by the support columns 3.

[0038] Since saddles 10 are installed on both sides of the beam 1, and the purpose of setting up the saddles 10 is to be used for the installation of the load-bearing ropes 12 and the circulating ropes 13 to facilitate the subsequent transportation of goods, both sides of the beam 1 need to bear the gravity of the goods themselves, that is, the beam 1 needs to have a certain stress strength to prevent the beam 1 from deforming, and because the two saddles 10 are arranged on both sides of the beam 1, the middle part of the beam 1 is subjected to the greatest stress, that is, the middle part of the beam 1 will first undergo stress deformation, so there is a problem that after the stress intensity exceeds the beam 1 itself, the middle part of the beam 1 will undergo deformation and fracture.

[0039] Among them, the installation of the load-bearing rope 12 and the circulating rope 13 requires the use of an electric lifting device 11. The electric lifting device 11 is installed on the side of the beam 1 close to the saddle 10. The load-bearing rope 12 or the circulating rope 13 is lifted by the electric lifting device 11 to respectively install the load-bearing rope 12 and the circulating rope 13 on the saddle 10 in sequence.

[0040] Based on this, an auxiliary support mechanism 4 is provided between the two connecting members 2 and the cross beam 1 of the present invention, and the auxiliary support mechanism 4 is used to support the cross beam 1 to reduce the influence of the cargo gravity on the stress deformation of the cross beam 1 and improve the service life of the cross beam 1.

[0041] For details, see Figures 2 to 4 The connecting member 2 includes a bottom plate 21 and a connecting frame. The bottom plate 21 is welded and fixed to the bottom of the beam 1. The connecting frame includes a horizontal plate 22 and two vertical plates 23. The bottom plate 21 and the horizontal plate 22 are stacked and fit together and are connected by fastening bolts. The two vertical plates 23 are arranged at the lower end of the horizontal plate 22. A connecting ear is provided at the upper end of the support column 3. The connecting ear is arranged between the two vertical plates 23 and is hingedly installed through a rotating shaft.

[0042] See also Figures 3 to 6 The auxiliary support mechanism 4 includes a vertically arranged rectangular column 41, the width direction of the rectangular column 41 is set as an arc surface structure, the top of the rectangular column 41 is provided with a locking disk 411, and a penetrating hole 412 is jointly opened in the middle of the rectangular column 41 and the locking disk 411, and a steel wire rope 5 is inserted in the penetrating hole 412.

[0043] Two rectangular holes 24 are symmetrically opened on the front and rear sides of the bottom plate 21 and the horizontal plate 22, and the side of the rectangular hole 24 close to the middle of the bottom plate 21 is set as a circular hole 25. It should be noted that the width of the rectangular column 41 is slightly smaller than the width of the rectangular hole 24, the length of the rectangular column 41 is greater than the width of the rectangular hole 24, and the length of the rectangular column 41 is slightly smaller than the diameter of the circular hole 25. In addition, the diameter of the circular hole 25 is greater than the width of the rectangular hole 24.

[0044] Initially, the length direction of the rectangular column 41 is the same as the length direction of the rectangular hole 24. The rectangular column 41 slides along the rectangular hole 24 into the circular hole 25, and then the rectangular column 41 rotates 90° in the circular hole 25, so that the width direction of the rectangular column 41 is the same as the length direction of the rectangular hole 24. At this time, the rectangular column 41 will be restricted in the circular hole 25 and cannot slide in the rectangular hole 24.

[0045] Two locking posts 413 are symmetrically provided at the bottom of the locking disc 411. The two locking posts 413 are distributed along the length direction of the rectangular column 41. Locking holes 26 are opened on the bottom plate 21 in the left and right directions of the circular hole 25. When the rectangular column 41 rotates 90° in the circular hole 25, the locking posts 413 are located directly above the locking holes 26. At this time, when the rectangular column 41 drives the locking disc 411 to move downward, the locking posts 413 can be inserted into the locking holes 26, thereby realizing the limited fixation of the rectangular column 41 in the circular hole 25.

[0046] A steering pulley assembly 6 for steering the wire rope 5 is provided above the positioning disc 411, and a plurality of supporting pulley assemblies 7 are provided at the lower end of the beam 1. The wire rope 5 passes through the through hole 412 on the left side of the beam 1 and then passes through the steering pulley assembly 6 above it, and then passes through the plurality of supporting pulley assemblies 7 provided below the beam 1 in sequence, and then passes through the steering pulley assembly 6 and the corresponding through hole 412 on the right side of the beam 1. When the beam 1 is erected and the wire rope 5 is also erected and arranged, both ends of the wire rope 5 are fixed to the ground by ground bolts.

[0047] It should be noted that the height of the steering pulley assembly 6 is higher than the height of the supporting pulley assembly 7, so that the portion of the wire rope 5 between the left and right sides of the beam 1 presents a "V" shape, and the wire rope 5 has the supporting force to lift the supporting pulley assembly 7, that is, the beam 1 has the supporting force to support upward.

[0048] See also Figures 5 to 8 A cylindrical body 42 is longitudinally slidably provided on a rectangular column 41 and located below the horizontal plate 22. A rectangular slider 43 is rotatably sleeved on the outer wall of the cylindrical body 42. A track frame 44 is provided at the bottom of the horizontal plate 22. The rectangular slider 43 slides in the track frame 44. A gear 421 is provided on the cylindrical body 42 and located at the bottom of the rectangular slider 43. Sliding bars 422 are slidably provided on both sides of the bottom of the track frame 44. A linear rack meshing with the gear 421 is provided on one of the sliding bars 422.

[0049] When the rectangular column 41 moves through the rectangular hole 24 to the circular hole 25, the sliding bar 422 moves along the track frame 44 until the linear rack thereon meshes with the gear 421, thereby driving the cylindrical body 42 to rotate in the rectangular slider 43 through the gear 421, that is, driving the rectangular column 41 to rotate synchronously. When the rectangular column 41 rotates 90°, the sliding bar 422 continues to move so that the linear rack disengages from the gear 421.

[0050] A rectangular plate 45 is commonly provided at one end of the two sliding bars 422 toward the middle of the horizontal plate 22. A triangular push block 451 is provided on one side of the rectangular plate 45 toward the gear 421. The slope of the triangular push block 451 is provided at the bottom and toward the direction of the gear 421. An abutment hole 414 cooperating with the triangular push block 451 is opened on the bottom side wall of the rectangular column 41.

[0051] When the linear rack is engaged with the gear 421 and drives the rectangular column 41 to rotate 90°, the linear rack disengages from the gear 421. At this time, the sliding bar 422 continues to move, and the rectangular plate 45 moves synchronously with the sliding bar 422. At this time, the triangular pushing block 451 on the rectangular plate 45 is inserted into the interference hole 414, and the downward movement of the rectangular column 41 is achieved through the cooperation between the slope of the triangular pushing block 451 and the interference hole 414, thereby ensuring that the locking column 413 on the locking disk 411 is inserted into the locking hole 26, that is, when the rectangular column 41 rotates 90°, the triangular pushing block 451 begins to cooperate with the interference hole 414 to drive the rectangular column 41 to move downward.

[0052] In summary, the rectangular column 41 slides into the circular hole 25 and rotates smoothly by 90°, while ensuring that the rectangular column 41 moves down a certain distance so that the positioning column 413 is inserted into the positioning hole 26, thereby achieving the fixing of the rectangular column 41 between the base plate 21 and the horizontal plate 22, that is, achieving the smooth passage of the steel wire rope 5 through the horizontal plate 22 and the base plate 21, while ensuring that the steel wire rope 5 is passed through the steering pulley assembly 6 and the supporting pulley assembly 7.

[0053] After completion, pull both ends of the wire rope 5 until the wire rope 5 is in a taut state. At this time, fix both ends of the wire rope 5 to the ground through ground bolts, so that the auxiliary support mechanism 4 can provide auxiliary support for the beam 1 and improve the stress-bearing strength of the beam 1.

[0054] When the freight cableway finishes transporting goods and needs to dismantle the cableway portal tower, first pull out the ground bolts at both ends of the wire rope 5. At this time, the wire rope 5 is in a loose state, and then the rectangular column 41 needs to be moved out of the circular hole 25. Therefore, the rectangular column 41 needs to be driven upward first to disengage the positioning column 413 from the positioning hole 26, and then rotated in the opposite direction by 90° so that the rectangular column 41 can be smoothly moved out of the rectangular hole 24, thereby completing the purpose of the rectangular column 41 disengaging from the circular hole 25.

[0055] For details, see Figures 9 to 11 A U-shaped plate 46 is provided at the bottom of the track frame 44, and a strip through hole 461 is opened in the middle of the U-shaped plate 46 for the wire rope 5 to move. Two supporting plates 462 are slidably provided at the bottom of the U-shaped plate 46. The spacing between the two supporting plates 462 is smaller than the width of the rectangular column 41, which can always ensure that the rectangular column 41 is supported between the two supporting plates 462. Therefore, it can be ensured that when the rectangular column 41 does not need to move down, the positioning column 413 is always located above the bottom plate 21.

[0056] The slide bar 422 and the support plate 462 are connected by a connecting rod 463. When the rectangular column 41 needs to move down, the rectangular column 41 needs to be rotated 90° first. Therefore, when the slide bar 422 moves, the linear rack will mesh with the gear 421, thereby driving the rectangular column 41 to rotate 90° through the cylindrical body 42. At this time, the slide bar 422 continues to move until the linear rack is disengaged from the gear 421. In the process of the movement of the slide bar 422, the slide bar 422 will also be moved through the connecting rod 463. The support plate 462 is synchronously driven to move. When the linear rack is disengaged from the gear 421, the support plate 462 is disengaged from the rectangular column 41, so that the support plate 462 no longer supports the rectangular column 41, and the sliding bar 422 continues to move until the triangular push block 451 is inserted into the abutment hole 414, so that the slope of the triangular push block 451 will drive the rectangular column 41 to move downward, thereby realizing the insertion of the locking column 413 into the locking hole 26, that is, the rectangular column 41 is limited and fixed in the circular hole 25.

[0057] Notches are provided on the opposite sides of the two supporting plates 462 and on the side facing the rectangular plate 45, and a downwardly inclined inclined plate 464 is provided at the notch. The spacing between the two notches is greater than the length of the rectangular column 41. When the rectangular column 41 needs to be moved out of the circular hole 25, the rectangular plate 45 is driven to move in the reverse direction, that is, the sliding bar 422 is driven to move toward the middle of the horizontal plate 22. At this time, the triangular pushing block 451 slowly moves out of the abutting hole 414, and then the inclined plate 464 at the notch begins to abut the bottom of the rectangular column 41. At the same time, the inclined effect of the inclined plate 464 is used to drive the rectangular column 41 to start moving upward. When it is completely moved out, the locking column 413 will also be completely separated from the locking hole 26. After that, the linear rack will drive the gear 421 to rotate 90° in the opposite direction, that is, drive the rectangular column 41 to rotate and reset, thereby ensuring that the rectangular column 41 can be smoothly moved out of the circular hole 25.

[0058] See also Fig.10 and Fig.11, an extension plate 452 is provided at the upper end of the rectangular plate 45. A connecting plate 47 is provided between the rectangular plate 45 and the U-shaped plate 46 inside the track frame 44. A tension spring 473 is provided between the extension plate 452 and the connecting plate 47. A first fixed pulley 471 is provided on the side of the connecting plate 47 facing away from the extension plate 452. A second fixed pulley 472 is provided outside one side of the track frame 44. A rope 48 is connected to the extension plate 452. The other end of the rope 48 passes through the connecting plate 47, then passes through the first fixed pulley 471, and then passes outside the track frame 44 and passes through the second fixed pulley 472.

[0059] By pulling the end of the rope 48 located outside the track frame 44, the rope 48 pulls the extension plate 452 to move towards the rectangular column 41, that is, it will drive the sliding bar 422 and the triangular pushing block 451 to move together, and the tension spring 473 starts to be compressed under force. At this time, the rectangular column 41 is limited and fixed in the circular hole 25. When the pulling of the rope 48 is released, under the elastic force of the tension spring 473, the extension plate 452 moves in the reset direction, so that the rectangular plate 45 will drive the sliding bar 422 and the triangular pushing block 451 to move back to the original position, and at this time, the limit on the rectangular column 41 is released.

[0060] Refer to Fig.12 and Fig.13 , two columns 8 are symmetrically provided at the middle position of the bottom of the horizontal plate 22. A cross plate 81 is jointly provided between the bottoms of the two columns 8. A threaded rod 82 is rotatably provided on the cross plate 81. A pulling plate 83 is jointly slidably provided between the two columns 8 and above the cross plate 81. The threaded rod 82 is threadedly passed through and connected to the pulling plate 83. The ends of the two ropes 48 distributed front and back are connected to the pulling plate 83.

[0061] When controlling the rotation of the threaded rod 82, under the cooperation of the threaded connection, the pulling plate 83 is driven to move downward, that is, the pulling plate 83 will pull the rope 48 to move together, so as to realize the movement of the sliding bar 422 and the triangular pushing block 451 towards the rectangular column 41; when the threaded rod 82 rotates in the reverse direction, the pulling plate 83 moves upward, releasing the pulling of the rope 48, so that under the reset of the tension spring 473, the sliding bar 422 and the triangular pushing block 451 move in the direction away from the rectangular column 41.

[0062] Look back at Figure 5 and Figure 6 , the steering pulley assembly 6 includes a U-shaped frame 61. The U-shaped frame 61 is provided on the side of the rectangular slider 43 facing the outside of the horizontal plate 22. A steering bracket 62 is provided at the top of the U-shaped frame 61. A steering pulley 63 located above the rectangular column 41 is provided on the steering bracket 62. The steel wire rope 5 is wound around the steering pulley 63. Two symmetrically arranged extension rods 64 are provided at the bottom of the U-shaped frame 61. Guide rails 65 are provided at the left and right sides of the track frame 44 at the bottom of the horizontal plate 22. A slide bar 66 is slidably provided on the guide rails 65, and the slide bar 66 is connected to the extension rod 64.

[0063] The profile frame 61 is connected to the rectangular slider 43 so that the rectangular slider 43 and the profile frame 61 can move synchronously, ensuring that the steering pulley 63 is always located above the rectangular column 41.

[0064] The supporting pulley assembly 7 includes a mounting frame 71, which is welded and fixed to the bottom of the beam 1. A rotating shaft 72 is rotatably provided at the lower end of the mounting frame 71, and a plurality of supporting pulleys 73 corresponding to the steel wire ropes 5 are provided on the rotating shaft 72. The steel wire ropes 5 are wound around the bottom of the supporting pulleys 73. The heights of the supporting pulleys 73 distributed from the middle of the beam 1 to both sides gradually increase, that is, the supporting pulley 73 located in the middle of the beam 1 has the lowest height.

[0065] In addition, it should be noted that the threaded rod 82 of the present invention can be replaced by an electric push rod. Therefore, when the rectangular column 41 is fixed in the round hole, the staff can remotely control the operation of the electric push rod on the ground to achieve the fixation of the rectangular column 41; similarly, the rectangular slider 43 slides in the track frame 44. It can be seen that an electric slider can be set in the track frame 44 to control the movement of the rectangular slider 43. Therefore, after the beam 1 is erected and installed, the staff does not need to climb to the height of the beam 1 to control the movement of the rectangular slider 43. The staff only needs to remotely control the operation of the electric slider on the ground.

[0066] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A freight ropeway portal tower, comprising a crossbeam (1), a connecting piece (2) being provided at both ends of the crossbeam (1), two supporting columns (3) being provided at both sides of the crossbeam (1), and the two supporting columns (3) being hingedly arranged on the connecting piece (2), the connecting piece (2) comprising a bottom plate (21) and a connecting frame, the bottom plate (21) being welded and fixed to the bottom of the crossbeam (1), the connecting frame comprising a horizontal plate (22) and two vertical plates (23), the bottom plate (21) and the horizontal plate (22) being stacked and fitted together and connected by fastening bolts, the two vertical plates (23) being arranged at the lower end of the horizontal plate (22), characterized in that: An auxiliary support mechanism (4) is provided between the two connecting members (2) and the crossbeam (1); The auxiliary support mechanism (4) comprises a rectangular column (41) arranged upright, a locking disc (411) being arranged on the top of the rectangular column (41), a through hole (412) being provided in the middle of the rectangular column (41) and the locking disc (411), a steel wire rope (5) being passed through the through hole (412); two rectangular holes (24) being symmetrically provided on the front and rear sides of the bottom plate (21) and the horizontal plate (22), a circular hole (25) being arranged on one side of the rectangular hole (24) close to the middle of the bottom plate (21), and the rectangular column (41) sliding along the rectangular hole (24) into the circular hole (25) and then rotating 90 degrees in the circular hole (25).

2. A freight ropeway portal tower according to claim 1, characterized in that: A deflection pulley assembly (6) is provided above the positioning disc (411), and a plurality of supporting pulley assemblies (7) are provided at the lower end of the cross beam (1). The steel wire rope (5) passes through a through hole (412) on the left side of the cross beam (1), passes through the deflection pulley assembly (6) above it, and then passes through a plurality of supporting pulley assemblies (7) provided below the cross beam (1) in sequence, and then passes through the deflection pulley assembly (6) on the right side of the cross beam (1) and the corresponding through hole (412). The height of the deflection pulley assembly (6) is higher than that of the supporting pulley assembly (7), so that the portion of the steel wire rope (5) between the left and right sides of the cross beam (1) presents a "V" shape.

3. A freight ropeway portal tower according to claim 2, characterized in that: Two locking posts (413) are symmetrically arranged at the bottom of the locking disc (411). The two locking posts (413) are distributed along the length direction of the rectangular column (41). The bottom plate (21) is provided with locking holes (26) on the left and right sides of the circular hole (25). When the rectangular column (41) rotates 90 degrees in the circular hole (25) and the rectangular column (41) drives the locking disc (411) to move downward, the locking posts (413) are inserted into the locking holes (26).

4. A freight ropeway portal tower according to claim 2, characterized in that: The rectangular column (41) is provided with a cylindrical body (42) which is longitudinally slidably disposed below the horizontal plate (22); a rectangular sliding block (43) is rotatably sleeved on the outer wall of the cylindrical body (42); a track frame (44) is provided at the bottom of the horizontal plate (22); the rectangular sliding block (43) slides in the track frame (44); a gear (421) is provided on the cylindrical body (42) and at the bottom of the rectangular sliding block (43); sliding bars (422) are slidably disposed on both left and right sides of the bottom of the track frame (44); and a linear rack meshing with the gear (421) is provided on one of the sliding bars (422).

5. A freight ropeway portal tower according to claim 4, characterized in that: A rectangular plate (45) is provided at one end of the two sliding bars (422) facing the middle of the horizontal plate (22); a triangular push block (451) is provided on one side of the rectangular plate (45) facing the gear (421); a slope of the triangular push block (451) is provided at the bottom and facing the direction of the gear (421); a contact hole (414) cooperating with the triangular push block (451) is provided on the bottom side wall of the rectangular column (41); when the rectangular column (41) rotates 90°, the triangular push block (451) starts to cooperate with the contact hole (414) to drive the rectangular column (41) to move downward.

6. A freight ropeway portal tower according to claim 4, characterized in that: A U-shaped plate (46) is provided at the bottom of the track frame (44), a strip-shaped through hole (461) is provided in the middle of the U-shaped plate (46) for the steel wire rope (5) to move, two supporting plates (462) are slidably provided at the bottom of the U-shaped plate (46), the spacing between the two supporting plates (462) is smaller than the width of the rectangular column (41), the sliding bar (422) and the supporting plates (462) are connected by a connecting rod (463), the two supporting plates (462) are provided with notches on the opposite sides and on the side facing the rectangular plate (45), and a downwardly inclined inclined plate (464) is provided at the notch, and the spacing between the two notches is greater than the length of the rectangular column (41).

7. A freight ropeway portal tower according to claim 5, characterized in that: An extension plate (452) is provided at the upper end of the rectangular plate (45), a connecting plate (47) is provided inside the track frame (44) and between the rectangular plate (45) and the U-shaped plate (46), a tension spring (473) is provided between the extension plate (452) and the connecting plate (47), a fixed pulley 1 (471) is provided on a side of the connecting plate (47) away from the extension plate (452), a fixed pulley 2 (472) is provided on the outside of one side of the track frame (44), a rope (48) is connected to the extension plate (452), and the other end of the rope (48) passes through the connecting plate (47), passes through the fixed pulley 1 (471), and then passes through the outside of the track frame (44) and passes through the fixed pulley 2 (472).

8. A freight ropeway portal tower according to claim 7, characterized in that: Two upright posts (8) are symmetrically arranged at the middle position of the bottom of the horizontal plate (22), a horizontal plate (81) is arranged between the bottoms of the two upright posts (8), a threaded rod (82) is rotatably arranged on the horizontal plate (81), a pulling plate (83) is slidably arranged between the two upright posts (8) and above the horizontal plate (81), the threaded rod (82) and the pulling plate (83) are connected by threaded penetration, and the ends of two ropes (48) distributed front and rear are connected to the pulling plate (83).

9. A freight ropeway portal tower according to claim 4, characterized in that: The deflection pulley assembly (6) comprises a shaped frame (61), the shaped frame (61) being arranged on a side of the rectangular slider (43) facing the outside of the horizontal plate (22), a deflection bracket (62) being arranged on the top of the shaped frame (61), a deflection pulley (63) being arranged on the deflection bracket (62) and being located above the rectangular column (41), a steel wire rope (5) being wound around the deflection pulley (63), two left-right symmetrical extension rods (64) being arranged at the bottom of the shaped frame (61), a guide rail (65) being arranged at the left and right sides of the track frame (44) at the bottom of the horizontal plate (22), a slide bar (66) being arranged on the guide rail (65) for sliding movement, and the slide bar (66) being connected to the extension rod (64).

10. A freight ropeway portal tower according to claim 2, characterized in that: The supporting pulley assembly (7) comprises a mounting frame (71), the mounting frame (71) being welded and fixed to the bottom of the cross beam (1), a rotating shaft (72) being rotatably provided at the lower end of the mounting frame (71), a plurality of supporting pulleys (73) corresponding to the steel wire ropes (5) being provided on the rotating shaft (72), the steel wire ropes (5) being wound around the bottom of the supporting pulleys (73), and the heights of the plurality of supporting pulleys (73) distributed from the middle of the cross beam (1) to both sides are gradually increased.

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