Traveling crane double-beam portal crane

Abstract

The invention provides a traveling crane double-beam portal crane, and relates to the technical field of cranes, the traveling crane double-beam portal crane comprises a plurality of supporting columns, a group of cross beams are mounted at the upper ends of the supporting columns, guide rails are arranged on the upper sides of the cross beams, and a traveling assembly is mounted on the upper sides of the guide rails in a sliding manner and comprises a traveling frame; a group of walking wheels are arranged on two sides of the bottom of the walking frame; cleaning liquid is stored in the water storage tank in advance, so that when the water feeding pump is started, the cleaning liquid is conveyed outwards, the cleaning liquid is distributed in the first series connection pipe through the first three-way valve, and the liquid is conveyed into the corresponding cleaning assemblies through the first butt joint pipe arranged on the pipe body of the first series connection pipe; and the drainage hole is formed in the inclined position of the water storage tank, so that spraying of the cleaning liquid is achieved, the cleaning assembly can preliminarily clean the guide rail at the current position, and it is guaranteed that oil stains on the guide rail are discharged in cooperation with the cleaning brush roller.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and more particularly to a gantry crane with double beams for overhead cranes. Background Art

[0002] A gantry crane with double beams for overhead cranes is a heavy lifting equipment that combines a gantry structure and a double-beam design, mainly used for material handling in outdoor or large sites. For example, a highly safe and general double-beam gantry crane with the patent publication number CN221116767U includes two main beams arranged horizontally opposite to each other. A lifting trolley capable of moving along the main beams is installed between the two main beams. Two symmetrically arranged and obliquely distributed outriggers are installed at both ends of each main beam. A horizontal ground beam is installed between the two outriggers at the same end of the main beam. A trolley traveling mechanism is installed on the ground beam. A hanging trolley capable of moving along the main beam is installed between the bottoms of the two main beams on both sides of the lifting trolley. A displacement device parallel to the ground beam and located below the main beam is installed on each hanging trolley. A telescopic device capable of moving along the displacement device is slidably connected to each displacement device. The bottom end of the telescopic device is a telescopic end, and a vertically distributed first baffle is installed at the bottom end of each telescopic device.

[0003] During the use of the above crane, due to the outdoor environment, its guide rails will be interfered by external impurities or dirty oil during the internal operation process, resulting in a certain amount of dust or oil stains accumulating on the outer side of the guide rails. Due to the accumulation of impurities during long-term use, it is easy to cause the situation that the walking wheels slide out when moving along the guide rails during the movement, and then cause the problem of derailment, which not only affects the construction efficiency but also poses a safety hazard to the surrounding personnel. Therefore, the present application designs a gantry crane with double beams for overhead cranes that can clean the guide rails during operation. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a gantry crane with double beams for overhead cranes, which solves the problems that the guide rails of existing cranes will accumulate dust and oil stains during operation, resulting in derailment or damage to the walking wheels during operation.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A gantry crane with double beams for overhead cranes includes a plurality of support columns. A set of crossbeams is installed at the upper ends of the plurality of support columns. A guide rail is arranged on the upper side of the crossbeams. A walking assembly is slidably installed on the upper side of the guide rail. The walking assembly includes a walking frame. A set of walking wheels is arranged on both sides of the bottom of the walking frame. The walking wheels cooperate with the guide rail. A lifting assembly for lifting goods is installed in the middle of the walking frame. Assembly slots are respectively formed at the four ends of the walking frame. A cleaning assembly for cleaning the guide rail is installed outside the assembly slots.

[0006] Preferably, a water storage tank is installed on one side of the walking frame. A water supply pump is installed at the drainage outlet of the water storage tank. One end of the water supply pump is connected to a first series pipe through a first three-way valve. Four ends of the body of the first series pipe are respectively provided with first connecting pipes.

[0007] Preferably, a bracket is installed on the other side of the walking frame. A receiving groove is provided at the bottom of the bracket. A negative pressure pump is installed on the upper side of the bracket. The sewage inlet of the negative pressure pump is installed with a second series pipe through a second three-way valve. Four ends of the body of the second series pipe are respectively installed with second connecting pipes. The first series pipe and the second series pipe are combined and fixed on the upper surface of the walking frame. The sewage discharge port of the negative pressure pump is located inside the receiving groove. A sewage pump is provided on one side of the receiving groove.

[0008] Preferably, a fence is installed on one side of the cross beam. A sliding seat is provided on the other side of the cross beam. A number of sliding plates are movably installed inside the sliding seat. A connecting pipe is commonly installed among the number of sliding plates. A sewage discharge pipe is installed on the body of one side of the support column. One end of the connecting pipe is connected to the sewage discharge pipe, and the other end of the connecting pipe is connected to the sewage pump.

[0009] Preferably, the lifting assembly includes a rotating seat. The rotating seat is arranged on one side of the upper surface of the walking frame. A wire winding shaft is arranged inside the rotating seat. A wheel disc group is installed under the rotating seat. A lifting hook is installed at the lower end of the wheel disc group. A cable is arranged between the wire winding shaft and the wheel disc group; A lifting motor is installed on one side of the rotating seat. The output end of the lifting motor is connected to a second gearbox. The output end of the second gearbox is connected to the wire winding shaft.

[0010] Preferably, a driving groove is formed on one side of the walking frame. A first gearbox is arranged in the middle of the driving groove. Driving shafts are installed on both sides of the first gearbox. A walking motor is fixedly installed on the upper side of the walking frame. The walking motor is connected to the upper input end of the first gearbox; Driving grooves are formed on both sides of the walking frame. A group of driven sprockets are rotatably installed inside the two driving grooves. Two of the driven sprockets are fixedly connected to the adjacent driving shafts. Expansion covers are installed at both ends of the driving groove. Extension sprockets are rotatably installed inside the expansion covers. A synchronous chain is commonly arranged between the adjacent driven sprockets and extension sprockets. The outer side of each driven sprocket is connected to the adjacent walking wheel through a rotating shaft.

[0011] Preferably, the cleaning assembly includes a housing. A combined socket is installed at the upper end of the housing. The combined socket is combined with the adjacent assembly slot. A rotating rod is rotatably installed inside the housing. A cleaning brush roller is installed on the body of the rotating rod. A group of flipping seats are rotatably installed under the housing. An extension plate is fixedly installed at the lower end of the flipping seat. The extension plate is located outside the guide rail.

[0012] Preferably, a collection groove is formed inside the extension plate. A partition net plate is installed inside the collection groove. A hose is fixedly installed outside the collection groove. A tee joint is installed between two adjacent hoses. The tee joint is connected to an adjacent second docking pipe. An auxiliary shovel plate is arranged at the outer end of the extension plate. An extension base is arranged outside the housing. A support spring is installed below the extension base. The lower end of the support spring is fixedly connected to an adjacent extension plate.

[0013] Preferably, a water storage tank is arranged at the upper end of the housing. A plurality of drain holes are formed in the inclined surface of the water storage tank. The upper end of the water storage tank is connected to an adjacent first docking pipe.

[0014] Preferably, a driven gear is fixedly installed on the outer side of the rotating rod. A driving gear is installed on the outer side of each extension sprocket through a rotating shaft. The driving gear meshes with the driven gear. Limit stop discs are installed at both ends of the cleaning brush roller. The limit stop discs are aligned with the collection groove. An extrusion scraping plate is arranged on the inner wall of the housing. The extrusion scraping plate is attached to the cleaning brush roller. A partition scraping plate is fixedly installed on one side of the housing. The partition scraping plate is located between the traveling wheels and the cleaning brush roller. The bottom of the partition scraping plate is attached to the guide rail. Thread grooves are formed on the surface of the cleaning brush roller in a positive and negative arrangement.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The cleaning liquid is pre-stored inside the water storage tank. When the water supply pump is started, the cleaning liquid is transported outward. By using the first three-way valve, the cleaning liquid is distributed inside the first series pipe. And by using the first docking pipes arranged on the body of the first series pipe, the liquid is respectively transported to the corresponding cleaning components. Then the liquid enters the water storage tank. By using the drain holes arranged at the inclined part of the water storage tank, the cleaning liquid is ejected. Thus, the cleaning components can initially clean the guide rail at the current position, ensuring that the oil stains on the guide rail are discharged in cooperation with the cleaning brush roller, avoiding the situation of falling off during the operation of the crane, and improving the safety during the construction process.

[0016] 2. Connect to the corresponding three-way interfaces through the second connecting pipes respectively, so that the second series pipes are connected to the sewage discharge parts of each cleaning component. Then, by starting the negative pressure pump and using the second three-way valve in cooperation with the second series pipes, the sewage of each corresponding cleaning component can be extracted. After extraction, it is discharged to the receiving tank for temporary storage by the negative pressure pump. When the internal volume of the receiving tank is insufficient, start the sewage pump to discharge the sewage to the connecting pipe and the sewage discharge pipe in sequence. There are several sliding plates movably installed inside the sliding seat, enabling the connecting pipe to adjust its position following the walking frame to ensure the smooth discharge of sewage. Moreover, the sewage located above can be stably discharged downward through the sewage discharge pipe, preventing the sewage from falling directly and splashing onto the staff below, thus improving the safety of this application during use.

[0017] 3. By combining the combined socket with the adjacent assembly slots, the cleaning components can be quickly disassembled or installed. Thus, during subsequent maintenance, only the cleaning components need to be disassembled. Additionally, through the cleaning components, the guide rail can be cleaned during the operation of this application without the need to use additional cleaning equipment, ensuring that the walking components will not derail during operation and guaranteeing the stability of the crane. Moreover, when using the existing cleaning equipment, the walking components need to be removed, while in this application, only the housing needs to be removed during the maintenance of the cleaning components, which is convenient for personnel operation.

[0018] 4. During cleaning, the sewage and impurities generated during cleaning can be collected through the collection tank. The large-particle impurities can be intercepted by the partition mesh plate to avoid blockage during subsequent discharge. The sewage and small-particle impurities will enter the second connecting pipe for discharge operations. The intercepted impurities can be cleaned out during subsequent maintenance. Additionally, the auxiliary shovel plate can prevent the cleaning components from pushing the impurities on the crossbeam outwards during movement, ensuring that the impurities do not fall, thereby improving the safety during the operation process.

[0019] 5. When the housing is installed in place, the driving gear and the driven gear are meshed and clamped. Subsequently, when the walking frame moves, the driving gear rotates. By using the meshing of the driving gear and the driven gear, the driven gear drives the cleaning brush roller to rotate, so that the cleaning brush roller cleans the guide rail at the current position. During the cleaning process, the impurities located in the middle are discharged to both sides through the threaded grooves. The threaded grooves at both ends are set in the opposite direction. Moreover, the partition scraper can prevent the impurities from interfering with the walking wheels during the cleaning process and can scrape off the stubborn impurities on the surface of the guide rail. The extrusion scraper can perform an extrusion operation on the cleaning brush roller during its rotation cleaning to prevent a large amount of sewage from remaining inside the cleaning brush roller, and the extruded sewage will be discharged into the collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional structural schematic diagram of another perspective of the present invention; Figure 3 is a top-view structural schematic diagram of the present invention; Figure 4 is Figure 3 the sectional structural schematic diagram at A-A in Figure 5 is Figure 3 the sectional structural schematic diagram at B-B in Figure 6 is a three-dimensional structural schematic diagram of the walking assembly; Figure 7 is a front-view structural schematic diagram of the walking assembly; Figure 8 is Figure 7 the sectional structural schematic diagram at C-C in Figure 9 is a three-dimensional structural schematic diagram of the cleaning assembly; Figure 10 is a three-dimensional structural schematic diagram of another perspective of the cleaning assembly; Figure 11 is a front-view structural schematic diagram of the cleaning assembly; Figure 12 is Figure 11 the sectional structural schematic diagram at D-D in Figure 13 is Figure 11 the sectional structural schematic diagram at E-E in

[0021] In the figure: 1, support column; 2, cross beam; 201, guide rail; 202, fence; 203, sliding seat; 204, sliding plate; 205, connecting pipe; 206, sewage pipe; 3, traveling assembly; 301, traveling frame; 302, drive groove; 303, traveling motor; 304, first gearbox; 305, drive shaft; 306, extension cover; 307, drive groove; 308, driven sprocket; 309, synchronous chain; 310, extension sprocket; 311, drive gear; 312, assembly slot; 313, traveling wheel; 4, lifting assembly; 401, rotating seat; 402, wire winding shaft; 403, lifting motor; 404, second gearbox; 405, wheel disc group; 406, lifting hook; 5, cleaning assembly; 501, housing; 5011, combined socket; 5012, water storage tank; 5013, drain hole; 5014, separating scraper; 502, extension seat; 5021, support spring; 503, flipping seat; 5031, extension plate; 5032, auxiliary shovel plate; 5033, collection tank; 5034, separating mesh plate; 5035, hose; 5036, three-way joint; 504, driven gear; 505, rotating rod; 506, cleaning brush roller; 5061, thread groove; 5062, limiting stop disc; 5063, extrusion scraper; 6, water storage tank; 601, water supply pump; 6011, first three-way valve; 602, first series pipe; 603, first docking pipe; 7, support; 701, receiving tank; 702, negative pressure pump; 7021, second three-way valve; 703, sewage pump; 704, second series pipe; 705, second docking pipe. Detailed implementation mode

[0022] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0023] As Figures 1 to 13 shown, a double-beam gantry crane for overhead traveling includes a plurality of support columns 1. A group of cross beams 2 are installed at the upper ends of the plurality of support columns 1. A guide rail 201 is arranged on the upper side of the cross beam 2. A traveling assembly 3 is slidably installed on the upper side of the guide rail 201. The traveling assembly 3 includes a traveling frame 301. A group of traveling wheels 313 are arranged on both sides of the bottom of the traveling frame 301. The traveling wheels 313 cooperate with the guide rail 201. A lifting assembly 4 for lifting goods is installed in the middle of the traveling frame 301. Assembly slots 312 are respectively opened at the four ends of the traveling frame 301. A cleaning assembly 5 for cleaning the guide rail 201 is installed outside the assembly slots 312.

[0024] In this embodiment, a water storage tank 6 is installed on one side of the walking frame 301. A water supply pump 601 is installed at the drainage outlet of the water storage tank 6. One end of the water supply pump 601 is connected to a first series pipe 602 through a first three-way valve 6011. Four ends of the pipe body of the first series pipe 602 are respectively provided with first docking pipes 603.

[0025] Since the cleaning liquid is pre-stored inside the water storage tank 6, when the water supply pump 601 is started, the cleaning liquid is transported outward. By using the first three-way valve 6011, the cleaning liquid is distributed inside the first series pipe 602. And by using the first docking pipes 603 provided on the pipe body of the first series pipe 602, the liquid is respectively transported to the corresponding cleaning assemblies 5, and then the liquid enters the water storage tank 5012. By using the drain holes 5013 provided at the inclined part of the water storage tank 5012, the spraying of the cleaning liquid is realized, so that the cleaning assemblies 5 can preliminarily clean the guide rail 201 at the current position to ensure that the oil stains on the guide rail 201 are discharged together with the cleaning brush rollers 506.

[0026] In this embodiment, a support 7 is installed on the other side of the walking frame 301. A receiving tank 701 is provided at the bottom of the support 7. A negative pressure pump 702 is installed on the upper side of the support 7. The sewage inlet of the negative pressure pump 702 is connected to a second series pipe 704 through a second three-way valve 7021. Four ends of the pipe body of the second series pipe 704 are respectively installed with second docking pipes 705. The first series pipe 602 and the second series pipe 704 are combined and fixed on the upper surface of the walking frame 301. The sewage outlet of the negative pressure pump 702 is located inside the receiving tank 701. A sewage pump 703 is provided on one side of the receiving tank 701. A protective shell can be provided outside the first series pipe 602 and the second series pipe 704 to improve the operation effect.

[0027] Among them, a fence 202 is installed on one side of the cross beam 2, and a sliding seat 203 is provided on the other side of the cross beam 2. A plurality of sliding plates 204 are movably installed inside the sliding seat 203. A connecting pipe 205 is commonly installed between the plurality of sliding plates 204. A sewage pipe 206 is installed on the column body of one side support column 1. One end of the connecting pipe 205 is connected to the sewage pipe 206, and the other end of the connecting pipe 205 is connected to the sewage pump 703.

[0028] It is respectively connected to the corresponding three-way interface 5036 through the second connecting pipe 705, so that the second series pipe 704 is connected to the sewage discharge place of each cleaning component 5. Thus, by starting the negative pressure pump 702 and using the second three-way valve 7021 in cooperation with the second series pipe 704, the sewage of each corresponding cleaning component 5 is extracted. After the extraction, it is discharged to the receiving tank 701 for temporary storage by the negative pressure pump 702. When the internal volume of the receiving tank 701 is insufficient, the sewage is sequentially discharged to the connecting pipe 205 and the sewage discharge pipe 206 by starting the sewage pump 703. A number of sliding plates 204 are movably installed inside the benefit sliding seat 203, so that the connecting pipe 205 can follow the position adjustment of the walking frame 301 to ensure that the sewage can be smoothly discharged. And through the sewage discharge pipe 206, the sewage located above can be stably discharged downward, avoiding the problem that the sewage directly falls and splashes on the staff below, thus improving the safety of the present application during use.

[0029] In this embodiment, the lifting component 4 includes a rotating seat 401. The rotating seat 401 is arranged on one side of the upper surface of the walking frame 301. A wire winding shaft 402 is arranged inside the rotating seat 401. A wheel disc group 405 is installed below the rotating seat 401. A lifting hook 406 is installed at the lower end of the wheel disc group 405. A cable is arranged between the wire winding shaft 402 and the wheel disc group 405; A lifting motor 403 is installed on one side of the rotating seat 401. The output end of the lifting motor 403 is connected to the second gearbox 404. The output end of the second gearbox 404 is connected to the wire winding shaft 402.

[0030] By starting the lifting motor 403 and under the action of the second gearbox 404, the wire winding shaft 402 is driven to rotate to realize the winding and unwinding of the cable, and the wheel disc group 405 can be used to control the lifting hook 406 below it to move up and down to meet the use requirements.

[0031] In the present application, a driving groove 302 is formed on one side of the walking frame 301. A first gearbox 304 is arranged in the middle of the driving groove 302. Driving shafts 305 are installed on both sides of the first gearbox 304. A walking motor 303 is fixedly installed on the upper side of the walking frame 301. The walking motor 303 is connected to the upper input end of the first gearbox 304; Driving grooves 307 are formed on both sides of the walking frame 301. A group of driven sprockets 308 are rotatably installed inside the two driving grooves 307. Two of the driven sprockets 308 are fixedly connected to the adjacent driving shafts 305. Expansion covers 306 are installed at both ends of the driving groove 307. An extension sprocket 310 is rotatably installed inside the expansion cover 306. A synchronous chain 309 is jointly arranged between the adjacent driven sprocket 308 and the extension sprocket 310. The outside of each driven sprocket 308 is connected to the adjacent walking wheel 313 through a rotating shaft.

[0032] By starting the walking motor 303, the two drive shafts 305 on both sides are driven to rotate under the action of the first transmission 304, so that two of the driven sprockets 308 rotate in the transmission groove 307. Under the action of the synchronous chain 309, each walking wheel 313 rotates synchronously, and the extension sprocket 310 and its driving gear 311 also rotate. Through the synchronous rotation of the walking wheels 313, the walking wheels 313 cooperate with the guide rail 201 to move the position of the walking frame 301, so as to ensure that the lifting position can be adjusted.

[0033] In the present application, the cleaning assembly 5 includes a housing 501. A combined socket 5011 is installed at the upper end of the housing 501. The combined socket 5011 is combined with the adjacent assembly slot 312. A rotating rod 505 is rotatably installed inside the housing 501. A cleaning brush roller 506 is installed on the rod body of the rotating rod 505. A group of flipping seats 503 are rotatably installed on the lower side of the housing 501. An extension plate 5031 is fixedly installed at the lower end of the flipping seat 503. The extension plate 5031 is located outside the guide rail 201. By combining the combined socket 5011 with the adjacent assembly slot 312, the cleaning assembly 5 can be quickly disassembled or installed. Thus, during subsequent maintenance, only the cleaning assembly 5 needs to be disassembled. And through the cleaning assembly 5, the guide rail 201 can be cleaned during the operation of the present application, without the need to additionally use a cleaning device for treatment, so as to ensure that the walking assembly 3 will not derail during operation, ensuring the stability of the crane. And when using the existing cleaning device, the walking assembly 3 needs to be removed, while in the present application, only the housing 501 needs to be removed when maintaining the cleaning assembly 5, which is convenient for personnel to operate.

[0034] It should be noted that a collection groove 5033 is formed inside the extension plate 5031. A partition mesh plate 5034 is installed inside the collection groove 5033. A hose 5035 is fixedly installed outside the collection groove 5033. A tee joint 5036 is installed between two adjacent hoses 5035. The tee joint 5036 is connected to the adjacent second docking pipe 705. An auxiliary shovel plate 5032 is arranged at the outer end of the extension plate 5031; An extension seat 502 is arranged outside the housing 501. A support spring 5021 is installed under the extension seat 502. The lower end of the support spring 5021 is fixedly connected to the adjacent extension plate 5031.

[0035] The extension plate 5031 can be pushed down by the support spring 5021, so that the extension plate 5031 flips and approaches the guide rail 201. Thus, the extension plate 5031 can cover the outside of the guide rail 201 to ensure that liquid or impurities will not splash out during subsequent cleaning, ensuring the safety of personnel. And through the above structure, the extension plate 5031 can be installed outside the guide rail 201 without getting stuck, which is convenient for personnel to disassemble later; When cleaning, the sewage and impurities generated during cleaning can be collected through the collection tank 5033. Among them, the large-particle impurities can be intercepted by the partition mesh plate 5034 to avoid blockage during subsequent discharge. The sewage and small-particle impurities will enter the second docking pipe 705 for discharge operation. The intercepted impurities can be cleaned out during subsequent maintenance. And the auxiliary shovel plate 5032 can be used to prevent the impurities on the cross beam 2 from being pushed outwards during the movement of the cleaning assembly 5, ensuring that the impurities do not fall, so as to improve the safety during operation.

[0036] Among them, a water storage tank 5012 is arranged at the upper end of the housing 501. A number of drain holes 5013 are opened at the inclined surface of the water storage tank 5012. The upper end of the water storage tank 5012 is connected to the adjacent first docking pipe 603.

[0037] During specific installation, a driven gear 504 is fixedly installed on the outer side of the rotating rod 505. A driving gear 311 is installed on the outer side of each extension sprocket 310 through a rotating shaft. The driving gear 311 meshes with the driven gear 504. Limit stop discs 5062 are installed at both ends of the cleaning brush roller 506. The limit stop discs 5062 are aligned with the collection tank 5033. An extrusion scraping plate 5063 is arranged on the inner wall of the housing 501. The extrusion scraping plate 5063 is attached to the cleaning brush roller 506. A partition scraping plate 5014 is fixedly installed on one side of the housing 501. The partition scraping plate 5014 is located between the traveling wheels 313 and the cleaning brush roller 506. The bottom of the partition scraping plate 5014 is attached to the guide rail 201. Thread grooves 5061 with opposite directions are arranged on the surface of the cleaning brush roller 506.

[0038] When the housing 501 is installed in place, the driving gear 311 and the driven gear 504 are meshed and clamped. Subsequently, when the traveling frame 301 moves, the driving gear 311 rotates. By using the meshing of the driving gear 311 and the driven gear 504, the driven gear 504 drives the cleaning brush roller 506 to rotate, so that the cleaning brush roller 506 cleans the guide rail 201 at the current position. And during the cleaning process, the impurities in the middle are discharged to both sides by using the thread grooves 5061. The two ends of the thread grooves 5061 are arranged in opposite directions. And the partition scraping plate 5014 can be used to prevent the impurities from interfering with the traveling wheels 313 during the cleaning process. And the partition scraping plate 5014 can scrape out the stubborn impurities on the surface of the guide rail 201. Among them, the extrusion scraping plate 5063 can perform an extrusion operation on the cleaning brush roller 506 during its rotation cleaning to avoid a large amount of sewage remaining inside the cleaning brush roller 506. And the extruded sewage will be discharged into the collection tank 5033.

[0039] The working principle of this gantry crane with double girder overhead traveling crane: During use, first start the traveling motor 303. Driven by the first gearbox 304, the two side drive shafts 305 rotate, causing two of the driven sprockets 308 to rotate within the transmission groove 307. Under the action of the synchronous chain 309, each traveling wheel 313 rotates synchronously. Additionally, the extension sprocket 310 and its drive gear 311 rotate. Through the synchronous rotation of the traveling wheels 313, the traveling wheels 313 cooperate with the guide rail 201 to move the position of the traveling frame 301. During the movement, start the negative pressure pump 702 and the water supply pump 601 respectively to achieve the transportation of the cleaning liquid and the recovery of the sewage. The sewage will be recovered and pre-stored in the receiving tank 701, and finally the sewage will be discharged using the sewage pump 703. During the movement, the drive gear 311 meshes with the driven gear 504, causing the driven gear 504 to drive the cleaning brush roller 506 to rotate. Thus, the cleaning brush roller 506 cleans the guide rail 201 at the current position, and during the cleaning process, the impurities located in the middle are discharged to both sides using the threaded groove 5061. After the movement is completed, start the hoisting motor 403. Driven by the second gearbox 404, the wire winding shaft 402 rotates to realize the winding and unwinding of the cable. The wheel disc group 405 can control the hoisting hook 406 below it to move up and down to meet the usage requirements.

[0040] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A gantry crane with double beams for overhead traveling cranes, comprising a plurality of support columns (1), characterized in that: A group of crossbeams (2) are installed at the upper ends of several of the support columns (1). A guide rail (201) is arranged on the upper side of the crossbeam (2). A traveling assembly (3) is slidably installed on the upper side of the guide rail (201). The traveling assembly (3) includes a traveling frame (301). A group of traveling wheels (313) are arranged on both sides of the bottom of the traveling frame (301). The traveling wheels (313) cooperate with the guide rail (201). A lifting assembly (4) for lifting goods is installed in the middle of the traveling frame (301). Assembly slots (312) are respectively formed at the four ends of the traveling frame (301). A cleaning assembly (5) for cleaning the guide rail (201) is installed outside the assembly slots (312).

2. The double-girder gantry crane for overhead traveling crane according to claim 1, wherein: A water storage tank (6) is installed on one side of the traveling frame (301). A water supply pump (601) is installed at the drain outlet of the water storage tank (6). One end of the water supply pump (601) is connected to a first series pipe (602) through a first three-way valve (6011). First docking pipes (603) are respectively arranged at the four ends of the pipe body of the first series pipe (602).

3. The gantry crane with double girder for overhead crane according to claim 2, characterized in that: A bracket (7) is installed on the other side of the traveling frame (301). A receiving groove (701) is arranged at the bottom of the bracket (7). A negative pressure pump (702) is installed on the upper side of the bracket (7). A second series pipe (704) is installed at the sewage inlet of the negative pressure pump (702) through a second three-way valve (7021). Second docking pipes (705) are respectively installed at the four ends of the pipe body of the second series pipe (704). The first series pipe (602) and the second series pipe (704) are combined and fixed on the upper surface of the traveling frame (301). The sewage discharge port of the negative pressure pump (702) is located inside the receiving groove (701). A sewage pump (703) is arranged on one side of the receiving groove (701).

4. The gantry crane with double beams for overhead traveling crane according to claim 3, characterized in that: A fence (202) is installed on one side of the crossbeam (2). A sliding seat (203) is arranged on the other side of the crossbeam (2). A number of sliding plates (204) are movably installed inside the sliding seat (203). A connecting pipe (205) is jointly installed among the number of sliding plates (204). A sewage pipe (206) is installed on the column body of one of the support columns (1). One end of the connecting pipe (205) is connected to the sewage pipe (206). The other end of the connecting pipe (205) is connected to the sewage pump (703).

5. A double-girder gantry crane for overhead traveling crane according to claim 1, characterized in that: The lifting assembly (4) includes a rotating seat (401). The rotating seat (401) is arranged on one side of the upper surface of the traveling frame (301). A wire winding shaft (402) is arranged inside the rotating seat (401). A wheel disc group (405) is installed under the rotating seat (401). A lifting hook (406) is installed at the lower end of the wheel disc group (405). A cable is arranged between the wire winding shaft (402) and the wheel disc group (405). A lifting motor (403) is installed on one side of the rotating seat (401). The output end of the lifting motor (403) is connected to a second gearbox (404). The output end of the second gearbox (404) is connected to the wire winding shaft (402).

6. A gantry crane with double beams for overhead traveling crane according to claim 3, characterized in that: One side of the walking frame (301) is provided with a driving groove (302). A first gearbox (304) is arranged in the middle of the driving groove (302). Driving shafts (305) are installed on both sides of the first gearbox (304). A walking motor (303) is fixedly installed on the upper side of the walking frame (301). The walking motor (303) is connected to the upper input end of the first gearbox (304). Transmission grooves (307) are provided on both sides of the walking frame (301). A set of driven sprockets (308) are rotatably installed inside the transmission grooves (307) on both sides. Two of the driven sprockets (308) are fixedly connected to the adjacent driving shafts (305). Expansion covers (306) are installed at both ends of the transmission groove (307). An extension sprocket (310) is rotatably installed inside the expansion cover (306). A synchronous chain (309) is jointly arranged between the adjacent driven sprocket (308) and the extension sprocket (310). The outer side of each driven sprocket (308) is connected to the adjacent walking wheel (313) through a rotating shaft.

7. A gantry crane with double beams for overhead traveling crane according to claim 6, characterized in that: The cleaning assembly (5) includes a housing (501). A combined socket (5011) is installed at the upper end of the housing (501). The combined socket (5011) is combined with the adjacent assembly slot (312). A rotating rod (505) is rotatably installed inside the housing (501). A cleaning brush roller (506) is installed on the rod body of the rotating rod (505). A set of flipping seats (503) are rotatably installed on the lower side of the housing (501). An extension plate (5031) is fixedly installed at the lower end of the flipping seat (503). The extension plate (5031) is located outside the guide rail (201).

8. The gantry crane with double beams of overhead crane according to claim 7, characterized in that: A collection groove (5033) is formed inside the extension plate (5031). A partition net plate (5034) is installed inside the collection groove (5033). A hose (5035) is fixedly installed outside the collection groove (5033). A tee joint (5036) is installed between two adjacent hoses (5035). The tee joint (5036) is connected to the adjacent second docking pipe (705). An auxiliary shoveling plate (5032) is arranged at the outer end of the extension plate (5031). An extension seat (502) is arranged outside the housing (501). A support spring (5021) is installed on the lower side of the extension seat (502). The lower end of the support spring (5021) is fixedly connected to the adjacent extension plate (5031).

9. The overhead traveling double-girder gantry crane according to claim 7, wherein: A water storage tank (5012) is arranged at the upper end of the housing (501). A plurality of drain holes (5013) are formed at the inclined surface of the water storage tank (5012). The upper end of the water storage tank (5012) is connected to the adjacent first docking pipe (603).

10. A gantry crane with double beams for overhead traveling crane according to claim 7, characterized in that: A driven gear (504) is fixedly installed on the outer side of the rotating rod (505). A driving gear (311) is installed on the outer side of each extension sprocket (310) through a rotating shaft. The driving gear (311) meshes with the driven gear (504). Both ends of the cleaning brush roller (506) are provided with limit retaining plates (5062), the limit retaining plates (5062) are aligned with the collection groove (5033), an extrusion scraping plate (5063) is arranged on the inner wall of the housing (501), the extrusion scraping plate (5063) is attached to the cleaning brush roller (506), a partition scraping plate (5014) is fixedly installed on one side of the housing (501), the partition scraping plate (5014) is located between the traveling wheels (313) and the cleaning brush roller (506), the bottom of the partition scraping plate (5014) is attached to the guide rail (201), and thread grooves (5061) are formed on the surface of the cleaning brush roller (506) in a positive and negative arrangement.

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