Suspended filler intercepting device for integrated sewage treatment equipment

Abstract

The utility model relates to a suspended filler intercepting device for integrated sewage treatment equipment, and belongs to the technical field of sewage treatment. Comprising a suspended filler intercepting net used for intercepting suspended ball filler, a scraper mechanism is arranged in the length direction of a rotating shaft, two traction connecting rods are arranged on the rotating shaft at intervals, an upper-layer rail car is arranged on an upper-layer rail beam in a sliding mode, and the upper end of the rotating shaft is rotationally connected with an upper-layer installation base installed on the upper-layer rail car; the bottom end of the rotating shaft is rotationally connected with a lower-layer mounting seat mounted on the lower-layer rail car, scrapers are arranged on the knife rest plate A and the knife rest plate B respectively, and the scraper switching and drawing mechanism is used for automatically switching the two scrapers and drawing the rotating shaft to move in the length direction of the upper-layer rail beam. The suspended filler intercepting device has the advantages that the scrapers on the knife rest plate A and the knife rest plate B scrape suspended ball filler on the surface of the suspended filler intercepting net in turn, and the situation that the suspended ball filler is accumulated and blocks the intercepting net is reduced.

Description

Technical Field

[0001] This utility model relates to a suspended filler interception device for an integrated sewage treatment equipment, belonging to the field of sewage treatment technology. Background Technology

[0002] Integrated wastewater treatment equipment combines primary sedimentation tanks, anaerobic tanks, aerobic tanks, secondary sedimentation tanks, and sludge tanks into one unit, effectively combining contact oxidation and activated sludge processes, saving the need to hire someone to design wastewater treatment processes and construct basic infrastructure.

[0003] For example, utility model patent number 201911333342.4 discloses an integrated wastewater treatment device comprising: an anoxic zone, an anaerobic zone, an aerobic zone, a sedimentation zone, a water treatment reactor, a filter, and a sterilizer connected in sequence. Combined packing materials are suspended in both the anoxic and anaerobic zones. The aerobic zone is filled with suspended packing materials. An aeration device is installed at the bottom of the aerobic zone. The sedimentation zone is connected to the anoxic zone via an activated sludge return pipe. The aerobic zone is connected to the anoxic zone via a mixed liquor return pipe. The water treatment reactor includes at least one reaction tank, with at least one contact reaction plate installed within it. A drain pipe is installed within the reaction tank, and a flexible hose from the contact reaction plate is connected to the drain pipe, which in turn connects to the filter. The integrated wastewater treatment device provided by this invention removes phosphorus through filtration in a high-efficiency water treatment reactor, reducing the operating costs of the integrated wastewater treatment equipment.

[0004] Although the aforementioned patent can achieve the venting function, the current technology is not comprehensive and has the following drawbacks: during the process of sewage flowing out of the anaerobic or aerobic tank, some suspended ball packing will continuously accumulate in the interception net between different areas. When too much suspended ball packing accumulates, it will block the water flow and even affect the sewage treatment process.

[0005] To solve one of the above problems, there is an urgent need for a suspended filler interception device for integrated sewage treatment equipment. Utility Model Content

[0006] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to realize the scrapers on the blade holder plate A and the blade holder plate B to alternately scrape the suspended ball packing on the surface of the suspended packing interception net, so as to reduce the accumulation of suspended ball packing and blockage of the interception net. To this end, a suspended packing interception device for integrated sewage treatment equipment is provided.

[0007] The integrated sewage treatment equipment of this utility model includes a suspended filler interception device, comprising a suspended filler interception net for intercepting suspended ball fillers, and a suspended filler cleaning device provided on the front side of the suspended filler interception net. The suspended filler cleaning device comprises a rotating shaft and upper and lower track beams spaced apart. A scraper mechanism is provided along the length of the rotating shaft. Two sets of traction connecting rods are spaced apart on the rotating shaft. An upper track car is slidably mounted on the upper track beam, and a lower track car is slidably mounted on the lower track beam. The upper end of the rotating shaft is rotatably connected to an upper mounting seat mounted on the upper track car, and the bottom end of the rotating shaft is rotatably connected to a lower mounting seat mounted on the lower track car. The scraper mechanism comprises two sets of blade holder plates A and B arranged along the length of the rotating shaft, each blade holder plate A and B being provided with a scraper. It also includes a scraper switching and traction mechanism for automatically switching between the two scrapers and for tractioning the rotating shaft to move along the length of the upper track beam.

[0008] The scraper switching and traction mechanism provides power for the movement of the rotating shaft and the scraper mechanism. When the scraper switching and traction mechanism pulls the rotating shaft and the scraper mechanism to move to the left relative to the suspended filler interception net, the scraper on the scraper plate A will scrape the suspended ball filler on the surface of the suspended filler interception net. When the scraper switching and traction mechanism reverses direction, it will pull the rotating shaft and the scraper mechanism to move to the right relative to the suspended filler interception net. The scraper on the scraper plate A will stop working, and the scraper on the scraper plate B will then scrape the suspended ball filler on the surface of the suspended filler interception net, reducing the accumulation of suspended ball filler and the blockage of the interception net. Furthermore, the arrangement of the upper track beam, lower track beam, upper track car, and lower track car ensures smooth reciprocating motion.

[0009] Preferably, the tool holder plate A and the tool holder plate B are integrally formed and both are welded to the rotating shaft, and the included angle between the tool holder plate A and the tool holder plate B is set to 110-150 degrees.

[0010] Preferably, multiple sets of scrapers are arranged along the length of the blade holder plate A and the blade holder plate B. The scraper on the blade holder plate A includes a scraper holder. The middle part of the scraper holder is hinged to the blade holder plate A through a hinge seat. A scraper head is vertically connected to one end of the scraper holder. Compression springs and buffer rubber columns are respectively provided at both ends of the back of the scraper holder. The other ends of the compression springs and buffer rubber columns abut against the blade holder plate A.

[0011] When the scraper on the scraper plate A is working, the scraper frame and the suspended filler interception net are parallel to each other. The scraper head is used to remove the suspended filler on the surface of the suspended filler interception net. The two sets of scrapers have the same structure and the same working principle, but they do not work at the same time. The compression spring and buffer rubber column are set to prevent the scraper head from being stuck due to concentrated force.

[0012] Preferably, the upper mounting base includes a vertical plate connected to the upper railcar, and a horizontal plate is vertically connected to the top of the vertical plate. The upper end of the rotating shaft passes through the horizontal plate and is rotatably connected to the bearing seat assembly. The upper ends of the tool holder plate A and the tool holder plate B are respectively provided with anti-rotation baffles A and B that cooperate with the vertical plate. When the traction rotating shaft moves to the left, the vertical plate abuts against the anti-rotation baffle A to restrict the rotating shaft from continuing to rotate. When the traction rotating shaft moves to the right, the vertical plate abuts against the anti-rotation baffle B to restrict the rotating shaft from continuing to rotate.

[0013] The left-side support wire rope pulls the traction link, which drives the rotating shaft to rotate until the anti-rotation baffle A is attached to the vertical plate. After the vertical plate abuts against the anti-rotation baffle A, it restricts the rotation of the rotating shaft. At this time, the cutter plate A and the suspended packing interception net are in a parallel state, and the scraper head on the cutter plate A can touch the suspended packing accumulated on the surface of the suspended packing interception net. The right-side support wire rope pulls the traction link, which drives the rotating shaft to rotate in the opposite direction until the anti-rotation baffle B is attached to the vertical plate. After the vertical plate abuts against the anti-rotation baffle B, it restricts the rotation of the rotating shaft. At this time, the cutter plate B and the suspended packing interception net are in a parallel state, and the scraper head on the cutter plate B can touch the suspended packing accumulated on the surface of the suspended packing interception net.

[0014] Preferably, the upper mounting base and the lower mounting base are arranged opposite to each other, but the upper mounting base and the lower mounting base have the same structure.

[0015] Preferably, the upper track beam is provided with end horizontal connecting support A and end horizontal connecting support B, which are fixedly connected to the wall at both ends, and the upper track car moves back and forth along the length direction of the lower wing plate of the upper track beam.

[0016] Preferably, the suspended filler interception net is made of stainless steel grating.

[0017] Preferably, the scraper switching and traction mechanism includes a first winch and a second winch fixed on the walls on both sides of the suspended filler interception net. The first main wire rope of the first winch passes over the left reversing wheel below it and is connected to the left support wire rope. The two sets of left support wire ropes are respectively connected to the corresponding traction rods. The second main wire rope of the second winch passes over the right reversing wheel below it and is connected to the right support wire rope. The two sets of right support wire ropes are respectively connected to the corresponding traction rods.

[0018] Preferably, the first winch and the second winch are of the same model and rotate at the same speed. When the first winch retracts the rope, the second winch releases the rope, and when the first winch releases the rope, the second winch retracts the rope. The first winch and the second winch are used together to traction the scraper mechanism and the traction linkage for reciprocating motion, and each reciprocating motion achieves double cleaning.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The integrated sewage treatment equipment of this utility model uses a suspended filler interception device. The scrapers on the blade holder plate A and blade holder plate B take turns scraping the suspended ball filler on the surface of the suspended filler interception net, reducing the accumulation of suspended ball filler and clogging of the interception net. This minimizes the possibility of the suspended ball filler accumulating too much and blocking the water flow, or even affecting the sewage treatment process.

[0021] The integrated sewage treatment equipment using the suspended filler interception device of this utility model, with its upper track beam, lower track beam, upper track car, and lower track car configuration, ensures smooth reciprocating motion.

[0022] The integrated sewage treatment equipment of this utility model uses a suspended filler interception device. The two sets of scrapers have the same structure and the same working principle, but they do not work at the same time. The compression spring and buffer rubber column are set to prevent the scraper head from being stuck due to concentrated force.

[0023] The integrated sewage treatment equipment with suspended filler interception device of this utility model uses a first winch and a second winch to traction the scraper mechanism and traction linkage for reciprocating motion, and achieves double cleaning with one reciprocating motion. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a connection diagram of the upper railcar and the upper mounting base in this utility model;

[0027] Figure 3 This is a diagram showing the working state of tool holder plate B moving to the right.

[0028] Figure 4 This is a diagram showing the working state of tool holder plate A moving to the left.

[0029] In the diagram: 1. Suspended packing interception net; 2. Rotating shaft; 3. Scraper mechanism; 3.1. Scraper holder plate A; 3.2. Scraper holder plate B; 3.3. Scraper; 3.4. Anti-rotation baffle A; 3.5. Anti-rotation baffle B; 4. Traction link; 5. Upper track beam; 5.1. End horizontal connection support A; 5.2. End horizontal connection support B; 6. Lower track beam; 7. Upper track car; 8. Lower track car; 9. Upper mounting seat; 9.1. Vertical plate; 9.2. Horizontal plate; 9.3. Bearing seat assembly; 10. Lower mounting seat; 11. First winch; 12. First main wire rope; 13. Left reversing wheel; 14. Left support wire rope; 15. Second winch; 16. Second main wire rope; 17. Right reversing wheel; 18. Right support wire rope; 19. Scraper holder; 20. Scraper head; 21. Hinge seat; 22. Compression spring; 23. Buffer rubber column. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0031] Example 1, such as Figure 1-2 As shown, the integrated sewage treatment equipment uses a suspended filler interception device, which includes a suspended filler interception net 1 for intercepting suspended ball filler. A suspended filler cleaning device is provided on the front side of the suspended filler interception net 1. The suspended filler cleaning device includes a rotating shaft 2 and upper track beams 5 and lower track beams 6 spaced apart. A scraper mechanism 3 is provided along the length of the rotating shaft 2. Two sets of traction connecting rods 4 are spaced apart on the rotating shaft 2. An upper track car 7 is slidably mounted on the upper track beam 5, and a lower track car 7 is slidably mounted on the lower track beam 6. The system includes a lower-level railcar 8, with the upper end of the rotating shaft 2 rotatably connected to an upper-level mounting seat 9 mounted on an upper-level railcar 7, and the lower end of the rotating shaft 2 rotatably connected to a lower-level mounting seat 10 mounted on the lower-level railcar 8. The scraper mechanism 3 includes two sets of blade holder plates A3.1 and B3.2 arranged along the length of the rotating shaft 2, with scrapers 3.3 respectively arranged on the blade holder plates A3.1 and B3.2. The system also includes a scraper switching and traction mechanism for automatically switching between the two scrapers and for traction of the rotating shaft 2 along the length of the upper-level rail beam 5.

[0032] The scraper switching and traction mechanism provides power for the movement of the rotating shaft 2 and the scraper mechanism 3, as shown in the reference. Figure 4When the scraper switching and traction mechanism pulls the rotating shaft 2 and the scraper mechanism 3 to move to the left relative to the suspended packing interception net 1, the scraper 3.3 on the scraper plate A3.1 will scrape the suspended ball packing on the surface of the suspended packing interception net 1; refer to Figure 3 When the scraper switching and traction mechanism reverses direction, it pulls the rotating shaft 2 and scraper mechanism 3 to move to the right relative to the suspended filler interception net 1. At this time, the scraper 3.3 on the scraper holder plate A3.1 stops working, and the scraper 3.3 on the scraper holder plate B3.2 takes over, scraping the suspended ball filler on the surface of the suspended filler interception net 1 to reduce the accumulation and blockage of the interception net. Furthermore, the arrangement of the upper track beam 5, lower track beam 6, upper track car 7, and lower track car 8 ensures smooth reciprocating motion.

[0033] Example 2, as Figure 1-2 As shown, the integrated sewage treatment equipment uses a suspended filler interception device, which includes a suspended filler interception net 1 for intercepting suspended ball filler. A suspended filler cleaning device is provided on the front side of the suspended filler interception net 1. The suspended filler cleaning device includes a rotating shaft 2 and upper track beams 5 and lower track beams 6 spaced apart. A scraper mechanism 3 is provided along the length of the rotating shaft 2. Two sets of traction connecting rods 4 are spaced apart on the rotating shaft 2. An upper track car 7 is slidably mounted on the upper track beam 5, and a lower track car 7 is slidably mounted on the lower track beam 6. The system includes a lower-level railcar 8, with the upper end of the rotating shaft 2 rotatably connected to an upper-level mounting seat 9 mounted on an upper-level railcar 7, and the lower end of the rotating shaft 2 rotatably connected to a lower-level mounting seat 10 mounted on the lower-level railcar 8. The scraper mechanism 3 includes two sets of blade holder plates A3.1 and B3.2 arranged along the length of the rotating shaft 2, with scrapers 3.3 respectively arranged on the blade holder plates A3.1 and B3.2. The system also includes a scraper switching and traction mechanism for automatically switching between the two scrapers and for traction of the rotating shaft 2 along the length of the upper-level rail beam 5.

[0034] Furthermore, the tool holder plate A3.1 and the tool holder plate B3.2 are integrally formed and both are welded to the rotating shaft 2. The included angle between the tool holder plate A3.1 and the tool holder plate B3.2 is set to 140 degrees.

[0035] Furthermore, multiple sets of scrapers 3.3 are arranged along the length of the blade holder plate A3.1 and the blade holder plate B3.2, respectively. The scraper 3.3 on the blade holder plate A3.1 includes a scraper holder 19. The middle part of the scraper holder 19 is hinged to the blade holder plate A3.1 through a hinge seat 21. One end of the scraper holder 19 is vertically connected to a scraper head 20. Compression springs 22 and buffer rubber pillars 23 are respectively arranged at both ends of the back of the scraper holder 19. The other ends of the compression springs 22 and buffer rubber pillars 23 abut against the blade holder plate A3.1, respectively.

[0036] When the scraper 3.3 on the scraper plate A3.1 is working, the scraper holder 19 is parallel to the suspended filler interception net 1. The scraper head 20 is used to remove the suspended filler on the surface of the suspended filler interception net 1. The two sets of scrapers 3.3 have the same structure and the same working principle, but they do not work at the same time. The compression spring 22 and the buffer rubber column 23 are set to prevent the scraper head 20 from being stuck due to concentrated force.

[0037] Furthermore, the upper mounting base 9 includes a vertical plate 9.1 connected to the upper railcar 7. A horizontal plate 9.2 is vertically connected to the top of the vertical plate 9.1. The upper end of the rotating shaft 2 passes through the horizontal plate 9.2 and is rotatably connected to the bearing seat assembly 9.3. The upper ends of the tool holder plate A3.1 and the tool holder plate B3.2 are respectively provided with anti-rotation baffles A3.4 and B3.5 that cooperate with the vertical plate 9.1. When the rotating shaft 2 is pulled to the left, the vertical plate 9.1 abuts against the anti-rotation baffle A3.4 to restrict the rotating shaft 2 from continuing to rotate. When the rotating shaft 2 is pulled to the right, the vertical plate 9.1 abuts against the anti-rotation baffle B3.5 to restrict the rotating shaft 2 from continuing to rotate.

[0038] The left-side support wire rope 14 pulls the traction link 4, which drives the rotating shaft 2 to rotate until the anti-rotation baffle A3.4 is attached to the vertical plate 9.1. After the vertical plate 9.1 and the anti-rotation baffle A3.4 come into contact, they are used to limit the rotation of the rotating shaft 2. At this time, the cutter plate A3.1 and the suspended filler interception net 1 are in a parallel state, and the scraper head 20 on the cutter plate A3.1 can touch the suspended filler accumulated on the surface of the suspended filler interception net 1. The right-side support wire rope 18 pulls the traction link 4, which drives the rotating shaft 2 to rotate in the opposite direction until the anti-rotation baffle B3.5 is attached to the vertical plate 9.1. After the vertical plate 9.1 and the anti-rotation baffle B3.5 come into contact, they are used to limit the rotation of the rotating shaft 2. At this time, the cutter plate B3.2 and the suspended filler interception net 1 are in a parallel state, and the scraper head 20 on the cutter plate B3.2 can touch the suspended filler accumulated on the surface of the suspended filler interception net 1.

[0039] Furthermore, the upper mounting base 9 and the lower mounting base 10 are arranged opposite to each other, but the upper mounting base 9 and the lower mounting base 10 have the same structure.

[0040] Furthermore, the upper track beam 5 is provided with end horizontal connecting supports A5.1 and B5.2, which are fixedly connected to the wall, at both ends, and the upper track vehicle 7 reciprocates along the length direction of the lower wing plate of the upper track beam 5.

[0041] Furthermore, the suspended filler interception net 1 is made of stainless steel grating.

[0042] Furthermore, the scraper switching and traction mechanism includes a first winch 11 and a second winch 15 fixed on the walls on both sides of the suspended filler interception net 1. The first main wire rope 12 of the first winch 11 passes over the left reversing wheel 13 below it and is connected to the left support wire rope 14. The two sets of left support wire ropes 14 are respectively connected to the corresponding traction rods 4. The second main wire rope 16 of the second winch 15 passes over the right reversing wheel 17 below it and is connected to the right support wire rope 18. The two sets of right support wire ropes 18 are respectively connected to the corresponding traction rods 4.

[0043] Furthermore, the first winch 11 and the second winch 15 are identical in model and rotate at the same speed. When the first winch 11 retracts the rope, the second winch 15 releases the rope, and when the first winch 11 releases the rope, the second winch 15 retracts the rope. The first winch 11 and the second winch 15 are used together to traction the scraper mechanism 3 and the traction link 4 for reciprocating motion, and each reciprocating motion achieves double cleaning.

[0044] The integrated sewage treatment equipment of this utility model uses a suspended filler interception device, in which the scrapers on the blade holder plate A and blade holder plate B alternately scrape the suspended ball filler on the surface of the suspended filler interception net, thereby reducing the accumulation of suspended ball filler and the blockage of the interception net.

[0045] The integrated sewage treatment equipment using the suspended filler interception device of this utility model, with its upper track beam, lower track beam, upper track car, and lower track car configuration, ensures smooth reciprocating motion.

[0046] The integrated sewage treatment equipment of this utility model uses a suspended filler interception device. The two sets of scrapers have the same structure and the same working principle, but they do not work at the same time. The compression spring and buffer rubber column are set to prevent the scraper head from being stuck due to concentrated force.

[0047] The integrated sewage treatment equipment with suspended filler interception device of this utility model uses a first winch and a second winch to traction the scraper mechanism and traction linkage for reciprocating motion, and achieves double cleaning with one reciprocating motion.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0049] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A suspended filler interception device for an integrated sewage treatment equipment, comprising a suspended filler interception net for intercepting suspended ball filler, wherein a suspended filler cleaning device is provided on the front side of the suspended filler interception net, characterized in that: The suspended filler cleaning device comprises a rotating shaft, upper and lower track beams arranged at intervals, a scraper mechanism arranged along the length direction of the rotating shaft, two groups of traction connecting rods arranged at intervals on the rotating shaft, an upper track vehicle slidingly arranged on the upper track beam, a lower track vehicle slidingly arranged on the lower track beam, an upper mounting seat mounted on the upper track vehicle and rotationally connected to the upper end of the rotating shaft, a lower mounting seat mounted on the lower track vehicle and rotationally connected to the bottom end of the rotating shaft, the scraper mechanism comprising two groups of knife rack plates A and B arranged along the length direction of the rotating shaft, scrapers arranged on the knife rack plates A and B respectively, and a scraper switching and traction mechanism for automatically switching the two scrapers and moving the rotating shaft along the length direction of the upper track beam.

2. The suspended filler interception device for the integrated sewage treatment plant according to claim 1, characterized in that, The knife rack plates A and B are integrally formed and welded to the rotating shaft, and the included angle between the knife rack plates A and B is 110-150 degrees.

3. The suspended filler interception device for the integrated sewage treatment plant according to claim 1, characterized in that, The suspended filler interception net is made of stainless steel grid plates.

4. The suspended filler interception device for the integrated sewage treatment plant according to claim 3, characterized in that, The scrapers are arranged in multiple groups along the length direction of the knife rack plates A and B, the scrapers on the knife rack plate A comprise a scraper holder, the middle part of the scraper holder is hingedly connected to the knife rack plate A, one end of the scraper holder is vertically connected to a scraper head, the back of the scraper holder is provided with a compression spring and a buffer rubber column at each end, and the other ends of the compression spring and the buffer rubber column are respectively abutted against the knife rack plate A.

5. The suspended filler interception device for the integrated sewage treatment plant according to claim 4, characterized in that, The upper mounting seat comprises a vertical plate connected to the upper track vehicle, a horizontal plate vertically connected to the top of the vertical plate, a bearing seat assembly rotationally connected to the upper end of the rotating shaft penetrating through the horizontal plate, and stopper plates A and B provided at the upper ends of the knife rack plates A and B and matched with the vertical plate, the vertical plate is abutted against the stopper plate A when the rotating shaft moves to the left to limit the continuous rotation of the rotating shaft, and the vertical plate is abutted against the stopper plate B when the rotating shaft moves to the right to limit the continuous rotation of the rotating shaft.

6. The suspended growth media interception device for an integrated wastewater treatment plant according to any one of claims 1-5, wherein, The upper mounting seat is arranged opposite to the lower mounting seat.

7. The suspended filler interception device for the integrated sewage treatment plant according to claim 6, characterized in that, The two ends of the upper track beam are respectively provided with end horizontal connection supports A and B fixedly connected to the wall, and the upper track vehicle reciprocally moves along the length direction of the lower wing plate of the upper track beam.

8. The suspended filler interception device for the integrated sewage treatment plant according to claim 7, characterized in that, The scraper switching and traction mechanism comprises first and second winches fixed to the walls on both sides of the suspended filler interception net, a first main steel wire rope of the first winch is connected to left side branch steel wire ropes after passing through a left side reversing wheel below the first winch, two groups of the left side branch steel wire ropes are respectively connected to corresponding traction connecting rods, a second main steel wire rope of the second winch is connected to right side branch steel wire ropes after passing through a right side reversing wheel below the second winch, and two groups of the right side branch steel wire ropes are respectively connected to corresponding traction connecting rods.

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