Anti-falling bridge crane

Abstract

The utility model discloses an anti-falling bridge crane, and mainly relates to the technical field of cranes. Comprising a cross beam track, the surface of the cross beam track is slidably connected with a moving frame, the upper surface of the moving frame is provided with a driving device, one side of the surface of the moving frame is provided with a winch frame, the output end of the driving device is in transmission connection with one end of the winch frame, and the arc surface of the winch frame is provided with a lifting hook; the adjusting device comprises a fixing plate, the section of the fixing plate is in an L shape, the upper end of the fixing plate is fixedly connected with the side wall of the movable frame, and the surface of the fixing plate is rotationally connected with a gear. The lifting hook has the advantages that the problem that due to errors caused by production and assembly of the lifting hook and abrasion caused by later use, the situation that a crane walking trolley deviates, gnaws a rail and even derails in the walking process of the beam rail can be directly caused, and then the whole crane falls off on the beam is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to an anti-falling bridge crane. Background Art

[0002] A bridge crane is a hoisting device that spans over workshops, warehouses, and yards for material hoisting. A hoisting machine is a space transportation tool that mainly moves heavy objects to other positions; it can reduce labor intensity and improve production efficiency, and is quite common in the process of cargo hoisting.

[0003] In the prior art, such as the utility model with the publication number of CN217627215U, this patent discloses an anti-falling bridge crane. The patent includes a fixed frame, a traveling trolley, a track beam, and a fixing plate. On one side of the guide shaft, a first clamping block is slidably connected, and on the other side of the guide shaft, a second clamping block is slidably connected. The switch and the alarm are electrically connected through a wire. The other end of the pressure rod is rotatably connected with a roller, and an elastic rod is rotatably connected between the pressure rods through a rotating shaft. By setting the fixed frame, the guide shaft, the first clamping block, the switch, the alarm, the second clamping block, the compression spring, and the roller, the staff can discover the worn and aged parts on the lifting rope in advance and eliminate potential safety hazards in time, effectively reducing the probability of the lifted goods falling due to the breakage of the lifting rope. By setting the fixing plate, the roller, the pressure rod, and the elastic rod, the traveling trolley can move along the track beam, and the traveling trolley can be effectively prevented from deviating, gnawing the rail, or even derailing.

[0004] It is found in the cargo hoisting that the lifting rope of the bridge crane is the main stress-bearing part of the crane. Due to the errors caused by the production and assembly of the hook and the wear caused by the later use, it will directly lead to the situation that the traveling trolley of the crane deviates, gnaws the rail, or even derails during the process of traveling on the crossbeam track, and further leads to the problem that the entire crane equipment falls on the crossbeam.

[0005] This application provides a technical solution to solve this technical problem, aiming to provide multiple solution options for those skilled in the art to solve the problem. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the defect that in the prior art, the lifting rope of the bridge crane is the main stress-bearing part of the crane. Due to the errors caused by the production and assembly of the hook and the wear caused by the later use, it will directly lead to the situation that the traveling trolley of the crane deviates, gnaws the rail, or even derails during the process of traveling on the crossbeam track, and further leads to the problem that the entire crane equipment falls on the crossbeam, and an anti-falling bridge crane is proposed.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-fall bridge crane, comprising a beam track, a moving frame is slidably connected to the surface of the beam track, a driving device is installed on the upper surface of the moving frame, a winch frame is installed on one side of the surface of the moving frame, the output end of the driving device is transmission-connected to one end of the winch frame, a hook is provided on the arc surface of the winch frame, and adjustment devices are provided on both side surfaces of the moving frame, the adjustment device comprises a fixing plate, the cross-section of the fixing plate is "L"-shaped, the upper end of the fixing plate is fixedly connected to the side wall of the moving frame, the surface of the fixing plate is rotatably connected to a gear, and both side surfaces of the beam track are fixedly connected A rack is connected, and the tooth surface of the rack is meshed with the tooth surface of the gear. The surfaces of the two fixed plates are fixedly connected to the same limit frame, and the cross-section of the limit frame is "U"-shaped. A servo motor is fixedly connected to the lower surface of the limit frame, and the output end of the servo motor is fixedly connected to a driving rod. Both ends of the driving rod are rotatably connected to connecting plates, one end of the connecting plate is fixedly connected to the limit frame, and threads with opposite thread directions are provided at both ends of the driving rod. Extrusion plates are threadedly connected to both ends of the driving rod, and the cross-section of the extrusion plate is "L"-shaped. The surface of the extrusion plate slides through the surface of the limit frame, and an extrusion block is fixedly connected to one end of the extrusion plate close to the beam track.

[0008] The effect achieved by the above components is: during the operation and use of the crane, in order to avoid long-term use, the entire lifting equipment is allowed to derail during movement, thereby causing the lifting equipment to fall. At this time, the gears rotating at both ends of the moving frame are meshed and slid with the racks fixed on the side walls of the beam track, and then the limit frame on the surface of the fixed plate is used to assist in protecting the position of the entire moving frame, which is beneficial to the protective limitation of the position of the sliding moving frame on the surface of the beam track.

[0009] Preferably, a friction pad is fixedly connected to the inner wall surface of the beam track, and the surface of the friction pad abuts against the surface of the extrusion plate.

[0010] The effect achieved by the above components is that when the extrusion plate is used to better squeeze and limit the position of the entire moving frame, the friction pad can be used to increase the friction to avoid the position of the extrusion plate from being offset.

[0011] Preferably, the inner walls at both ends of the limit frame are fixedly connected with a clamping plate, the cross-section of the clamping plate is "L"-shaped, and the bottom surface of the beam track is fixedly connected with a positioning plate corresponding to the position of the clamping plate, the cross-section of the positioning plate is "T"-shaped, and the surface of the positioning plate is slidably connected to the surface of the clamping plate.

[0012] The effects achieved by the above components are as follows: By using the clamping plate on the surface of the limit frame and the positioning plate on the bottom surface of the crossbeam track for sliding limit, it can avoid the ineffective support of the limit frame during use and is conducive to further fixing the limit.

[0013] Preferably, baffles are fixedly connected to the bottom surfaces of both ends of the crossbeam track, and the cross-sectional dimensions of the baffles are adapted to the cross-sectional dimensions of the positioning plate.

[0014] The effects achieved by the above components are as follows: The baffle can protect the limit frame during movement and prevent the limit frame from falling off its position.

[0015] Preferably, auxiliary devices are provided on the surfaces of both ends of the moving frame. The auxiliary device includes an auxiliary frame. One end of the auxiliary frame is fixedly connected to the surface of the moving frame. Moving rods are slidably penetrated through both sides of the surface of the auxiliary frame. The bottom ends of the two moving rods are fixedly connected to the same connecting plate. Springs are sleeved on the arc surfaces of the moving rods. The two ends of the springs are respectively fixedly connected to the auxiliary frame and the moving rods. An auxiliary plate is fixedly connected to the lower surface of the connecting plate. A plurality of brush columns are fixedly connected to the lower surface of the auxiliary plate. The surfaces of the plurality of brush columns are in contact with the surface of the crossbeam track.

[0016] The effects achieved by the above components are as follows: When the moving frame drives the entire driving device to move horizontally with the winch frame, in order to avoid derailment caused by impurities on the surface of the crossbeam track, at this time, with the help of the auxiliary frames fixed at both ends of the moving frame, the moving rods on the surface of the auxiliary frame adjust the position of the brush columns on the surface of the auxiliary plate through the extrusion force generated by the springs, so that the brush columns clean the surface of the crossbeam track, effectively and conveniently enabling the entire moving frame to move better along the crossbeam track for protection.

[0017] Preferably, the plurality of brush columns are all nylon columns, and the plurality of brush columns are evenly distributed on the lower surface of the auxiliary plate.

[0018] The effects achieved by the above components are as follows: With the help of the nylon brush columns, they can be used for a long time, avoiding the aging and falling off of the brush columns on the surface of the auxiliary plate.

[0019] Preferably, a scraper is fixedly connected to the side of the lower surface of the auxiliary plate away from the brush columns, and the scraper is a cemented carbide plate.

[0020] The effects achieved by the above components are as follows: With the help of the scraper made of cemented carbide material, the surface of the crossbeam track can be cleaned to avoid the situation of derailment of the moving frame caused by impurity contamination.

[0021] In summary, the beneficial effects of the present utility model are as follows:

[0022] In the present utility model, during the operation and use of the crane, in order to avoid derailment of the entire hoisting equipment during movement due to long-term use, which may cause the hoisting equipment to fall. At this time, the gears rotating at both ends of the moving frame are engaged and slide with the racks fixed on the side walls of the crossbeam track. With the aid of the limiting frame on the surface of the fixing plate, the limiting frame provides auxiliary protection for the position of the entire moving frame. At the same time, with the aid of the servo motor on the lower surface of the limiting frame, the servo motor drives the driving rod to rotate. Then, the pressing plates at both ends of the driving rod are pressed and fixed against the inner wall of the crossbeam track, using the protection and limitation of the position of the moving frame sliding on the surface of the crossbeam track. The sliding limit between the clamping plate on the surface of the limiting frame and the positioning plate on the bottom surface of the crossbeam track can prevent the ineffective support of the limiting frame during use, which is beneficial for further fixing and limiting. Through the operation of the adjusting device, the adjustment and protection of the position of the entire moving frame are achieved, avoiding the detachment between the driving device, the winch frame, and the hook on the surface of the moving frame and the crossbeam track during movement, effectively protecting and limiting the entire crane equipment.

[0023] In the present utility model, when the moving frame drives the entire driving device and the winch frame to move horizontally, in order to avoid derailment caused by impurities on the surface of the crossbeam track. At this time, with the aid of the auxiliary frames fixed at both ends of the moving frame, the position of the brush columns on the surface of the auxiliary plate is adjusted by the extrusion force generated by the springs of the moving rods on the surface of the auxiliary frames, so that the brush columns clean the surface of the crossbeam track. At the same time, the surface of the crossbeam track can be cleaned by using a scraper made of cemented carbide, avoiding derailment of the moving frame caused by impurity contamination. Through the operation of the auxiliary device, effective and convenient movement protection of the entire moving frame along the crossbeam track is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0025] FIG Figure 2 is a partial structural schematic diagram of the three-dimensional structure of the present utility model;

[0026] FIG Figure 3 is a structural schematic diagram of the adjusting device of the present utility model;

[0027] FIG Figure 4 is a partial structural schematic diagram of the adjusting device of the present utility model;

[0028] FIG Figure 5 is a structural schematic diagram of the auxiliary device of the present utility model.

[0029] Numbers shown in the accompanying drawings: 1, beam track; 2, hook; 3, capstan frame; 4, adjusting device; 401, fixing plate; 402, gear; 403, rack; 404, limiting frame; 405, servo motor; 406, connecting plate; 407, driving rod; 408, extrusion plate; 409, extrusion block; 410, friction pad; 411, positioning plate; 412, clamping plate; 413, baffle; 5, auxiliary device; 51, auxiliary frame; 52, moving rod; 53, spring; 54, connecting plate; 55, scraper; 56, auxiliary plate; 57, brush column; 6, driving device; 7, moving frame. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0031] Reference Figures 1 to 5 As shown, the utility model provides a technical solution: an anti-fall bridge crane, comprising a beam track 1, a movable frame 7 is slidably connected to the surface of the beam track 1, a driving device 6 is installed on the upper surface of the movable frame 7, a winch frame 3 is installed on one side of the surface of the movable frame 7, the output end of the driving device 6 is transmission-connected to one end of the winch frame 3, a hook 2 is provided on the arc surface of the winch frame 3, an adjusting device 4 is provided on the two side surfaces of the movable frame 7, and an auxiliary device 5 is provided on the two end surfaces of the movable frame 7.

[0032] The specific settings and functions of the adjusting device 4 and the auxiliary device 5 are described in detail below.

[0033] Reference Figure 2 , Figure 3 and Figure 4As shown in the figure, in this embodiment: The adjusting device 4 includes a fixing plate 401. The cross-section of the fixing plate 401 is in an "L" shape. The upper end of the fixing plate 401 is fixedly connected to the side wall of the moving frame 7. A gear 402 is rotatably connected to the surface of the fixing plate 401. Rack bars 403 are fixedly connected to both side surfaces of the crossbeam track 1. The tooth surfaces of the rack bars 403 are meshed with the tooth surface of the gear 402. The same limiting frame 404 is fixedly connected to the surfaces of the two fixing plates 401. The cross-section of the limiting frame 404 is in a "U" shape. A servo motor 405 is fixedly connected to the lower surface of the limiting frame 404. A driving rod 407 is fixedly connected to the output end of the servo motor 405. Connecting plates 406 are rotatably connected to both ends of the driving rod 407. One end of the connecting plate 406 is fixedly connected to the limiting frame 404. Threads with opposite directions are provided at both ends of the driving rod 407. Pressing plates 408 are threadedly connected to both ends of the driving rod 407. The cross-section of the pressing plate 408 is in an "L" shape. The surface of the pressing plate 408 slidably penetrates through the surface of the limiting frame 404. A pressing block 409 is fixedly connected to one end of the pressing plate 408 close to the crossbeam track 1. A friction pad 410 is fixedly connected to the inner wall surface of the crossbeam track 1. The surface of the friction pad 410 abuts against the surface of the pressing plate 408. Clamping plates 412 are fixedly connected to both inner walls at both ends of the limiting frame 404. The cross-section of the clamping plate 412 is in an "L" shape. A positioning plate 411 is fixedly connected to the bottom surface of the crossbeam track 1 corresponding to the position of the clamping plate 412. The cross-section of the positioning plate 411 is in a "T" shape. The surface of the positioning plate 411 is slidably connected to the surface of the clamping plate 412. Baffles 413 are fixedly connected to the bottom surfaces at both ends of the crossbeam track 1. The cross-sectional size of the baffle 413 is adapted to the cross-sectional size of the positioning plate 411.

[0034] Referring to Figure 5 As shown in the figure, in this embodiment: The auxiliary device 5 includes an auxiliary frame 51. One end of the auxiliary frame 51 is fixedly connected to the surface of the moving frame 7. Moving rods 52 slidably penetrate through both sides of the surface of the auxiliary frame 51. The same connecting plate 54 is fixedly connected to the bottom ends of the two moving rods 52. Springs 53 are sleeved on the arc surfaces of the moving rods 52. The two ends of the spring 53 are respectively fixedly connected to the auxiliary frame 51 and the moving rod 52. An auxiliary plate 56 is fixedly connected to the lower surface of the connecting plate 54. A plurality of brush columns 57 are fixedly connected to the lower surface of the auxiliary plate 56. The surfaces of the plurality of brush columns 57 abut against the surface of the crossbeam track 1. The plurality of brush columns 57 are all nylon columns. The plurality of brush columns 57 are evenly distributed on the lower surface of the auxiliary plate 56. A scraping plate 55 is fixedly connected to one side of the lower surface of the auxiliary plate 56 away from the brush columns 57. The scraping plate 55 is a cemented carbide plate.

[0035] Detailed usage method: During the operation of the crane, to avoid derailment and falling of the entire lifting equipment during long-term use, at this time, the gears 402 rotating at both ends of the moving frame 7 are engaged and slide with the racks 403 fixed on the side wall of the crossbeam track 1. Then, with the help of the limiting frame 404 on the surface of the fixing plate 401, the servo motor 405 on the lower surface of the limiting frame 404 is started, so that the servo motor 405 drives the driving rod 407 to rotate. Then, the pressing plates 408 at both ends of the driving rod 407 are moved, so that the pressing plates 408 are pressed and fixed with the inner wall of the crossbeam track 1. At this time, the position of the entire moving frame 7 will be fixed and cannot move continuously. During this process, the clamping plate 412 on the surface of the limiting frame 404 is slidably limited with the positioning plate 411 on the bottom surface of the crossbeam track 1, which can prevent the limiting frame 404 from being unable to provide effective support during use, thus further fixing the limit.

[0036] When the moving frame 7 drives the entire driving device 6 and the winch frame 3 to move horizontally, to avoid derailment caused by impurities on the surface of the crossbeam track 1, at this time, with the help of the auxiliary frames 51 fixed at both ends of the moving frame 7, the moving rods 52 on the surface of the auxiliary frames 51 adjust the position of the brush columns 57 on the surface of the auxiliary plate 56 through the extrusion force generated by the springs 53, so that the brush columns 57 clean the surface of the crossbeam track 1. At the same time, the surface of the crossbeam track 1 can be cleaned with the help of the scraper 55 made of cemented carbide, avoiding derailment of the moving frame 7 caused by impurity contamination.

Claims

1. A fall-proof bridge crane, comprising a beam track (1), characterized in that: The surface of the crossbeam track (1) is slidably connected to a moving frame (7), the upper surface of the moving frame (7) is installed with a driving device (6), a winch frame (3) is installed on one side of the surface of the moving frame (7), the output end of the driving device (6) is transmission-connected to one end of the winch frame (3), the arc surface of the winch frame (3) is provided with a hook (2), and the two side surfaces of the moving frame (7) are provided with adjustment devices (4), the adjustment devices (4) include a fixed plate (401), the cross section of the fixed plate (401) is "L"-shaped, the upper end of the fixed plate (401) is fixedly connected to the side wall of the moving frame (7), the surface of the fixed plate (401) is rotatably connected to a gear (402), the two side surfaces of the crossbeam track (1) are fixedly connected to racks (403), the tooth surface of the rack (403) is meshed with the tooth surface of the gear (402), and the two fixed The surface of the plate (401) is fixedly connected to a same limiting frame (404), the cross section of the limiting frame (404) is "U"-shaped, the lower surface of the limiting frame (404) is fixedly connected to a servo motor (405), the output end of the servo motor (405) is fixedly connected to a driving rod (407), both ends of the driving rod (407) are rotatably connected to connecting plates (406), one end of the connecting plate (406) is fixedly connected to the limiting frame (404), both ends of the driving rod (407) are provided with threads with opposite thread directions, both ends of the driving rod (407) are threadedly connected to an extrusion plate (408), the cross section of the extrusion plate (408) is "L"-shaped, the surface of the extrusion plate (408) and the surface of the limiting frame (404) are slidably penetrated, and one end of the extrusion plate (408) close to the crossbeam track (1) is fixedly connected to an extrusion block (409).

2. The anti-fall bridge crane according to claim 1, characterized in that: A friction pad (410) is fixedly connected to the inner wall surface of the crossbeam track (1), and the surface of the friction pad (410) abuts against the surface of the extrusion plate (408).

3. The anti-fall bridge crane according to claim 1, characterized in that: The inner walls at both ends of the limiting frame (404) are fixedly connected with a clamping plate (412), the cross section of which is in an "L" shape; a positioning plate (411) is fixedly connected to the bottom surface of the crossbeam track (1) at a position corresponding to the clamping plate (412), the cross section of which is in a "T" shape; the surface of the positioning plate (411) is slidably connected to the surface of the clamping plate (412).

4. The anti-fall bridge crane according to claim 1, characterized in that: The bottom surfaces at both ends of the crossbeam track (1) are fixedly connected with baffles (413), and the cross-sectional dimensions of the baffles (413) are matched with the cross-sectional dimensions of the positioning plate (411).

5. The anti-fall bridge crane according to claim 1, characterized in that: Auxiliary devices (5) are provided on both end surfaces of the movable frame (7), and the auxiliary devices (5) include an auxiliary frame (51), one end of the auxiliary frame (51) is fixedly connected to the surface of the movable frame (7), both sides of the surface of the auxiliary frame (51) are slidably penetrated by movable rods (52), the bottom ends of the two movable rods (52) are fixedly connected to the same connecting plate (54), the circular arc surface of the movable rod (52) is sleeved with a spring (53), the two ends of the spring (53) are respectively fixedly connected to the auxiliary frame (51) and the movable rod (52), the lower surface of the connecting plate (54) is fixedly connected to an auxiliary plate (56), the lower surface of the auxiliary plate (56) is fixedly connected to a plurality of brush columns (57), and the surfaces of the plurality of brush columns (57) are in contact with the surface of the crossbeam track (1).

6. The anti-fall bridge crane according to claim 5, characterized in that: The plurality of brush columns (57) are all nylon columns, and the plurality of brush columns (57) are evenly distributed on the lower surface of the auxiliary plate (56).

7. The anti-fall bridge crane according to claim 5, characterized in that: A scraper (55) is fixedly connected to the side of the lower surface of the auxiliary plate (56) away from the brush column (57), and the scraper (55) is a hard alloy plate.

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