Low-clearance double-beam crane

Abstract

The utility model relates to the technical field of cranes, and provides a low-clearance double-beam crane which comprises two longitudinal rails, the inner side walls of the two longitudinal rails are slidably connected with a moving seat used for moving longitudinally, one side of the moving seat is fixedly provided with a dust collecting box used for collecting dust, and the other side of the moving seat is provided with a lifting device. Two transverse rails used for transverse movement are fixedly mounted on the outer side of the dust collection box, and the tops of the two transverse rails are slidably connected with a crane carriage body used for transverse movement; according to the low-clearance double-beam crane, the driving wheel is driven by the arranged driving assembly to rotate in the moving seat, so that the moving seat can longitudinally move on the longitudinal rail, and when the driving wheel rotates forwards or turns over, the driving wheel can be driven by linkage between the driving assembly and the dust collection assembly; and a dust collection assembly in the dust collection box can communicate with the interior of the moving seat through a communicating hole, and dust on the longitudinal rail is extracted through a dust collection hole in the moving seat, so that the dust removal effect of the whole crane during use is improved, and the service life of the whole crane is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and specifically, to a low-headroom double-girder crane. Background Art

[0002] A double-girder crane is a lifting device that spans over workshops, warehouses, and yards for material hoisting.

[0003] The Chinese patent discloses an ultra-low-headroom double-girder suspended crane with the publication number CN214989811U, which states that "it includes a first main girder, a second main girder, and an electric hoist. There are two crossbeams arranged between the first main girder and the second main girder. The left and right ends of the crossbeams are respectively connected to the first main girder and the second main girder through power devices in a rolling manner. There is an installation box arranged on the two crossbeams, and the electric hoist is installed on the lower surface of the installation box. A rotating shaft is rotatably connected inside the installation box"; this crane makes the electric hoist move longitudinally by the movement of the moving wheels on the second main girder. Since the moving wheels are directly exposed to move on the second main girder, after the main girder has been used for a long time, dust or particulate impurities in the air may accumulate on it. When the moving wheels roll directly on the main girder, the impurities on it may affect the service life of the moving wheels, and the traditional crane cannot remove the dust accumulated on the track more efficiently, thereby reducing the overall service life and use effect of the crane. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a low-headroom double-girder crane, which solves the problem in the related technology that the dust accumulated on the track cannot be removed more efficiently during use, thereby reducing the overall service life and use effect of the crane.

[0005] The technical solution of the utility model is as follows:

[0006] A low-headroom double-girder crane includes two longitudinal rails. A moving seat for longitudinal movement is slidably connected to the inner side walls of the two longitudinal rails. A dust collection box for dust collection is fixedly installed on one side of the moving seat. Two transverse rails for transverse movement are fixedly installed on the outer side of the dust collection box. A hoisting trolley body for transverse movement is slidably connected to the tops of the two transverse rails. Communication holes for connection are opened on one side of the moving seat and the other side of the top end of the dust collection box. A dust suction hole for dust suction is opened on the inner bottom wall of the moving seat. Two driving wheels for movement are rotatably connected to the inner side walls of the moving seat. A dust collection drawer for collecting dust is slidably connected to the inner bottom wall of the dust collection box. A dust suction component for dust suction is arranged on the inner side wall of the dust collection box. A driving component for driving the driving wheels to rotate and starting the dust suction component is arranged on the inner side wall of the moving seat.

[0007] Preferably, the dust suction assembly includes a driven rod rotatably connected to the inner side wall of the dust collection box. A driving gear is fixedly installed on the outer side of the driven rod. One end inner wall of the driven rod is fixedly installed with a first electric telescopic rod. The telescopic end of the first electric telescopic rod is fixedly installed with a first insertion rod. The inner side wall of the dust collection box is rotatably connected to a linkage rod. The other end of the linkage rod is slidably connected to the outer side of the first insertion rod.

[0008] Preferably, the dust suction assembly further includes two dust suction covers fixedly installed on the inner side wall of the dust collection box. The inner side walls of the two dust suction covers are rotatably connected to a flow guiding rotating rod. Both ends of the flow guiding rotating rod are rotatably connected to the inner side wall of the dust collection box. A scraping frame is also fixedly installed on the outer side of the flow guiding rotating rod.

[0009] Preferably, the dust suction assembly further includes a second electric telescopic rod fixedly installed at the other end of the flow guiding rotating rod. The telescopic end of the second electric telescopic rod is fixedly installed with a second insertion rod. The other end of the second insertion rod is fixedly installed with a driven gear. A first belt pulley is fixedly installed at one end of both the linkage rod and the flow guiding rotating rod. A first transmission belt is sleeved on the outer side of the first belt pulley.

[0010] Preferably, the driving assembly includes a driving rod rotatably connected to the inner top wall of the moving seat. The inner side wall of the moving seat is rotatably connected to the inner wall of the other end of the driven rod.

[0011] Preferably, the driving assembly further includes second belt pulleys fixedly installed at the other end of the driving rod, on the outer side of the driven rod, and at one end of the driving wheel. Second transmission belts and third transmission belts are respectively sleeved on the outer sides of the second belt pulleys.

[0012] Preferably, the driving assembly further includes a driving motor fixedly installed on the inner top wall of the moving seat. The output end of the driving motor is fixedly connected to one end of the driving rod.

[0013] Preferably, two telescopic dust-proof covers are fixedly installed on both sides of the hoisting trolley body. The other ends of the two telescopic dust-proof covers are fixedly connected to the outer side of the dust collection box.

[0014] The beneficial effects of the present utility model:

[0015] By setting the driving assembly to drive the driving wheel to rotate inside the moving seat, the moving seat can longitudinally move on the longitudinal rail. When the driving wheel rotates forward or reversely, through the linkage between the driving assembly and the dust suction assembly, the dust suction assembly inside the dust collection box can communicate with the inside of the moving seat through the communication hole, and then the dust on the longitudinal rail can be extracted through the dust suction hole on the moving seat, thereby improving the dust removal effect and service life of the overall crane during use. Description of the Drawings

[0016] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 Schematic diagram of the moving seat structure of the present utility model;

[0019] Figure 3 Schematic diagram of the communication hole structure of the present utility model;

[0020] Figure 4 Schematic diagram of the internal structure of the dust collection box of the present utility model;

[0021] Figure 5 Schematic diagram of the dust suction assembly structure of the present utility model;

[0022] In the figure: 1, longitudinal rail; 2, moving seat; 21, dust suction hole; 22, driving wheel; 3, dust collection box; 31, dust collection drawer; 4, cross rail; 5, lifting trolley body; 51, telescopic dust-proof cover; 6, communication hole; 7, dust suction assembly; 71, driven rod; 72, driving gear; 73, first electric telescopic rod; 74, first insertion rod; 75, linkage rod; 76, dust suction cover; 77, flow guiding rotating rod; 78, scraping frame; 79, second electric telescopic rod; 710, second insertion rod; 711, driven gear; 712, first belt pulley; 713, first transmission belt; 8, driving assembly; 81, driving rod; 82, second belt pulley; 83, second transmission belt; 84, third transmission belt; 85, driving motor. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, this embodiment proposes a low-headroom double-girder crane, which includes two longitudinal rails 1. A moving seat 2 for longitudinal movement is slidably connected to the inner side walls of the two longitudinal rails 1. A dust collection box 3 for dust collection is fixedly installed on one side of the moving seat 2. Two transverse rails 4 for transverse movement are fixedly installed on the outer side of the dust collection box 3. A hoisting trolley body 5 for transverse movement is slidably connected to the tops of the two transverse rails 4. Communication holes 6 for connection are opened on one side of the moving seat 2 and the other side of the top end of the dust collection box 3. A dust suction hole 21 for dust suction is opened on the inner bottom wall of the moving seat 2. Two driving wheels 22 for movement are rotatably connected to the inner side wall of the moving seat 2. A dust collection drawer 31 for collecting dust is slidably connected to the inner bottom wall of the dust collection box 3. A dust suction component 7 for dust suction is arranged on the inner side wall of the dust collection box 3. A driving component 8 for driving the driving wheels 22 to rotate and starting the dust suction component 7 is arranged on the inner side wall of the moving seat 2. Two telescopic dust-proof covers 51 are fixedly installed on both sides of the hoisting trolley body 5. The other ends of the two telescopic dust-proof covers 51 are fixedly connected to the outer side of the dust collection box 3. When the crane is in use, the hoisting trolley body 5 is used to hoist objects and slide transversely on the transverse rails 4. While sliding, the telescopic dust-proof covers 51 fold and contract to play a dust-proof role on the transverse rails 4. Then, through the driving of the driving component 8 on the driving wheels 22, the driving wheels 22 can drive the moving seat 2 and the dust collection box 3 to move longitudinally on the longitudinal rails 1. When sliding longitudinally forward or backward, due to the small gap between the moving seat 2 and the longitudinal rails 1, large particle impurities that may exist on the longitudinal rails 1 can be pushed out and removed. For small particles and dust, through the action of the dust suction component 7 inside the dust collection box 3, after the dust collection box 3 is connected to the inside of the moving seat 2 through the communication hole 6, by approaching the dust suction hole 21 at the bottom of the moving seat 2 to the longitudinal rails 1, the dust on the longitudinal rails 1 is extracted, and then the dust is transported to the inside of the dust collection box 3 through the communication hole 6 and collected by the dust collection drawer 31. The dust collection drawer 31 can be pulled out from the dust collection box 3, which is more convenient for unified treatment of dust, preventing the dust and impurities from affecting the driving wheels 22 moving on the longitudinal rails 1;

[0025] Please refer to Figure 3 , Figure 4 and Figure 5, in this embodiment, a low headroom double-beam crane is proposed. The dust suction assembly 7 includes a driven rod 71 rotatably connected to the inner side wall of the dust collection box 3. A driving gear 72 is fixedly installed on the outer side of the driven rod 71. A first electric telescopic rod 73 is fixedly installed on the inner wall of one end of the driven rod 71. A first insertion rod 74 is fixedly installed at the telescopic end of the first electric telescopic rod 73. A linkage rod 75 is rotatably connected to the inner side wall of the dust collection box 3. The other end of the linkage rod 75 is slidably connected to the outer side of the first insertion rod 74. The dust suction assembly 7 further includes two dust suction covers 76 fixedly installed on the inner side wall of the dust collection box 3. A flow guide rotating rod 77 is rotatably connected to the inner side wall of the two dust suction covers 76. Both ends of the flow guide rotating rod 77 are rotatably connected to the inner side wall of the dust collection box 3. A scraping frame 78 is also fixedly installed on the outer side of the flow guide rotating rod 77. The dust suction assembly 7 further includes a second electric telescopic rod 79 fixedly installed at the other end of the flow guide rotating rod 77. A second insertion rod 710 is fixedly installed at the telescopic end of the second electric telescopic rod 79. A driven gear 711 is fixedly installed at the other end of the second insertion rod 710. A first belt pulley 712 is fixedly installed at one end of both the linkage rod 75 and the flow guide rotating rod 77. A first transmission belt 713 is sleeved on the outer side of the first belt pulley 712. When the driven rod 71 rotates clockwise, the first insertion rod 74 can be driven by the first electric telescopic rod 73 inside the driven rod 71 to insert into the inside of the linkage rod 75, so that the linkage rod 75 and the driven rod 71 rotate clockwise. Then, through the action of the first belt pulley 712 and the first transmission belt 713, the flow guide rotating rod 77 can be driven to rotate inside the dust suction cover 76, so that the external dust can be sucked into the dust collection box 3. The dust that may remain on the dust suction cover 76 can be scraped and cleaned by the rotation of the scraping frame 78 driven by the flow guide rotating rod 77, so that the dust can fall downward into the dust collection drawer 31. When the driven rod 71 rotates counterclockwise, the driven rod 71 can be disengaged from the linkage rod 75 through the first insertion rod 74. Then, the second insertion rod 710 can be driven to slide by the second electric telescopic rod 79 inside the flow guide rotating rod 77, so that the driven gear 711 on the second insertion rod 710 meshes with the driving gear 72 on the driven rod 71. Subsequently, the flow guide rotating rod 77 can be driven by the driven rod 71 to keep rotating clockwise, and the dust can continue to be extracted into the dust collection box 3. The driving assembly 8 includes a driving rod 81 rotatably connected to the inner top wall of the moving seat 2. The inner side wall of the moving seat 2 is rotatably connected to the inner wall of the other end of the driven rod 71. The driving assembly 8 further includes second belt pulleys 82 fixedly installed at the other end of the driving rod 81, the outer side of the driven rod 71, and one end of the driving wheel 22. Second transmission belts 83 and third transmission belts 84 are respectively sleeved on the outer sides of the second belt pulleys 82. The driving assembly 8 further includes a driving motor 85 fixedly installed on the inner top wall of the moving seat 2. The output end of the driving motor 85 is fixedly connected to one end of the driving rod 81. When it is necessary to drive the moving seat 2 to move by the driving wheel 22, the driving rod 81 can be driven by the driving motor 85, and then through the action of the second belt pulley 82 and the second transmission belt 83, the driven rod 71 can be driven to rotate.Meanwhile, through the action of the second pulley 82 and the third transmission belt 84, the driving wheel 22 is driven to rotate by the driven rod 71, so that the moving seat 2 moves longitudinally on the longitudinal rail 1.

[0026] In this embodiment, during use, first, the driving motor 85 drives the rotation of the driving rod 81, so that the driving rod 81 can drive the driven rod 71 to rotate in the same direction through the second pulley 82 and the second transmission belt 83 at the same time. Then, the second pulley 82 and the third transmission belt 84 drive the driving wheel 22 to rotate in the same direction, so that the moving seat 2 can move longitudinally on the longitudinal rail 1. When the driving wheel 22 rotates clockwise through the driven rod 71, the driven rod 71 and the linkage rod 75 can be linked through the first plug rod 74, so that the linkage rod 75 can drive the guide rotating rod 77 to rotate clockwise through the first pulley 712 and the first transmission belt 713, so that the dust collecting drawer 31 can communicate with the inside of the moving seat 2 through the communication hole 6, and then the dust on the longitudinal rail 1 can be extracted through the dust suction hole 21 on the moving seat 2. When the driving wheel 22 and the driven rod 71 rotate counterclockwise, the second plug rod 710 enables the driven rod 71 to continuously drive the guide rotating rod 77 to rotate clockwise through the driving gear 72 and the driven gear 711 thereon, and the dust on the longitudinal rail 1 is extracted through the dust suction hole 21, thereby improving the dust removal effect and service life of the overall crane during use.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low headroom double-beam crane, comprising two longitudinal rails (1), characterized in that: The inner side walls of the two longitudinal rails (1) are slidably connected to a moving seat (2) for longitudinal movement; a dust collecting box (3) for collecting dust is fixedly installed on one side of the moving seat (2); two transverse rails (4) for transverse movement are fixedly installed on the outer side of the dust collecting box (3); a lifting trolley body (5) for transverse movement is slidably connected to the top of the two transverse rails (4); one side of the moving seat (2) and the other side of the top of the dust collecting box (3) are both provided with a connecting hole (6) for connection; A dust suction hole (21) for dust suction is provided on the inner wall of the bottom end of the movable seat (2); two driving wheels (22) for movement are rotatably connected to the inner wall of the movable seat (2); a dust collecting drawer (31) for collecting dust is slidably connected to the inner wall of the bottom end of the dust collecting box (3); a dust suction assembly (7) for dust suction is provided on the inner wall of the dust collecting box (3); and a driving assembly (8) for driving the driving wheel (22) to rotate and start the dust suction assembly (7) is provided on the inner wall of the movable seat (2).

2. A low headroom double beam crane according to claim 1, characterized in that: The dust collection assembly (7) comprises a driven rod (71) rotatably connected to the inner wall of the dust box (3); a driving gear (72) is fixedly mounted on the outer side of the driven rod (71); a first electric telescopic rod (73) is fixedly mounted on the inner wall of one end of the driven rod (71); a first insertion rod (74) is fixedly mounted on the telescopic end of the first electric telescopic rod (73); a linkage rod (75) is rotatably connected to the inner wall of the dust box (3); and the other end of the linkage rod (75) is slidably connected to the outer side of the first insertion rod (74).

3. A low headroom double beam crane according to claim 2, characterized in that: The dust collection assembly (7) further comprises two dust collection hoods (76) fixedly mounted on the inner side wall of the dust collection box (3); the inner side walls of the two dust collection hoods (76) are rotatably connected to a flow guide rotating rod (77); both ends of the flow guide rotating rod (77) are rotatably connected to the inner side wall of the dust collection box (3); and a scraping frame (78) is also fixedly mounted on the outer side of the flow guide rotating rod (77).

4. A low headroom double beam crane according to claim 3, characterized in that: The dust collection assembly (7) further comprises a second electric telescopic rod (79) fixedly mounted on the other end of the flow guide rotating rod (77); a second insertion rod (710) is fixedly mounted on the telescopic end of the second electric telescopic rod (79); a driven gear (711) is fixedly mounted on the other end of the second insertion rod (710); a first pulley (712) is fixedly mounted on one end of the linkage rod (75) and the flow guide rotating rod (77); and a first transmission belt (713) is sleeved on the outer side of the first pulley (712).

5. The low headroom double beam crane according to claim 2, characterized in that: The driving assembly (8) comprises a driving rod (81) rotatably connected to the inner wall of the top end of the moving seat (2), and the inner side wall of the moving seat (2) is rotatably connected to the inner wall of the other end of the driven rod (71).

6. A low headroom double beam crane according to claim 5, characterized in that: The driving assembly (8) further comprises a second pulley (82) fixedly mounted on the other end of the driving rod (81), the outer side of the driven rod (71) and one end of the driving wheel (22), and the outer side of the second pulley (82) is respectively sleeved with a second transmission belt (83) and a third transmission belt (84).

7. A low headroom double beam crane according to claim 6, characterized in that: The driving assembly (8) further comprises a driving motor (85) fixedly mounted on the inner wall of the top end of the moving seat (2), and an output end of the driving motor (85) is fixedly connected to one end of the driving rod (81).

8. The low headroom double beam crane according to claim 1, characterized in that: Two telescopic dust covers (51) are fixedly mounted on both sides of the lifting trolley body (5), and the other ends of the two telescopic dust covers (51) are fixedly connected to the outside of the dust collecting box (3).

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