Double-cantilever bridge portal crane

Abstract

The utility model discloses a double cantilever bridge portal crane which comprises a crane main body, the crane main body comprises a support frame, cantilever beams are arranged on the support frame, moving rails are arranged on the two cantilever beams, a moving trolley and a hoisting device are arranged between the two moving rails, a cleaning device is arranged at one end of the moving trolley, the cleaning device comprises a mounting box, and the mounting box is arranged in the mounting box. Cleaning boxes are arranged on the two sides of the mounting box, a rotating shaft is arranged in the mounting box, a cleaning brush is arranged on the rotating shaft, the cantilever beam is supported through the supporting frame, the moving track is supported through the cantilever beam, the moving trolley moves on the moving track, the position of the hoisting device is adjusted, and through cooperation of the rotating shaft and the cleaning brush, the hoisting device can be lifted. Impurities such as stones above the moving track can be conveniently cleaned, and the impurities are prevented from influencing the stability and safety of the moving trolley and the hoisting device during working.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, and more specifically, it relates to a double-cantilever bridge gantry crane. Background Art

[0002] A double-cantilever bridge gantry crane is a special lifting machine. It has two cantilevers and usually has a large lifting capacity, which can meet the needs of heavy industry. It has the characteristics of high site utilization rate, large operation range, wide adaptability, strong versatility, etc., and is widely used in port freight yards.

[0003] The moving vehicle of the gantry crane travels on the moving track of the cantilever beam. However, because the gantry crane is mainly used outdoors, it is easy for sundries such as sand and stones to fall on the track surface. When the track wheels pass by, they will crush these sundries, which will cause damage to the track wheels and the track, reduce the service life of the track wheels and the track, and affect the stability and safety of the hoisting work. Due to the influence of weather conditions, when encountering strong wind weather, the gantry crane often slides under the action of the wind, and there may even be a situation of derailing, which will endanger the personal safety of the staff. The existing anchoring structure in the crane is more complicated to operate and has a poor anchoring effect, making it inconvenient for the staff to use. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the problems existing in the prior art, the utility model provides a double-cantilever bridge gantry crane to solve the technical problem that impurities on the moving track affect the operation stability of the crane mentioned in the background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A double-cantilever bridge gantry crane includes a crane main body. The crane main body includes a support frame. There are cantilever beams arranged on the support frame. There are two cantilever beams. Moving tracks are arranged on both of the two cantilever beams. A moving vehicle is arranged between the two moving tracks. A hoisting device is arranged on the moving vehicle. A cleaning device is arranged at one end of the moving vehicle. The cleaning device includes an installation box. Cleaning boxes are arranged on both sides of the installation box. A rotating shaft is arranged in the installation box. A cleaning brush is arranged on the rotating shaft. The cleaning brush is in contact with the upper surface of the moving track. Moving wheels are symmetrically arranged at the bottom of the support frame. There are two pairs of moving wheels arranged symmetrically. A moving motor is connected to one pair of the moving wheels. An anchoring device is arranged on the other pair of the moving wheels.

[0008] The present utility model is further configured such that hanging boxes are provided on both sides of the installation box, and hanging ears cooperating with the hanging boxes are provided on the cleaning box, facilitating the installation of the cleaning box on the installation box.

[0009] The present utility model is further configured such that the anchoring device includes a fixing plate, a fixing sleeve is provided on the fixing plate, a fixing screw is provided on the fixing sleeve, and an anchoring plate is provided on the fixing screw. By the cooperation of the fixing screw and the fixing sleeve, the height of the anchoring plate is adjusted, and the anchoring plate supports and anchors to the ground, facilitating the fixing of the position of the crane main body.

[0010] The present utility model is further configured such that a fixing motor is provided on the fixing plate, a first bevel gear is provided on the motor shaft of the fixing motor, and a second bevel gear is provided on the fixing sleeve. By the cooperation of the first bevel gear and the second bevel gear, the fixing motor drives the fixing screw to rotate.

[0011] The present utility model is further configured such that a connecting plate is provided on the fixing screw, and a connecting rod is slidably provided between the connecting plate and the fixing plate. By the cooperation of the connecting rod and the connecting plate, the moving direction of the fixing screw is restricted, preventing the fixing screw from rotating.

[0012] The present utility model is further configured such that anchoring teeth are circumferentially provided on the anchoring plate, improving the anchoring stability between the anchoring plate and the ground.

[0013] The present utility model is further configured such that a diagonal brace is provided on the support frame, facilitating the support of the cantilever beam.

[0014] The present utility model is further configured such that limiting blocks are provided on both sides of the moving track, restricting the moving position of the moving vehicle on the moving track.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a double-cantilever bridge gantry crane, having the following beneficial effects:

[0017] 1. The cantilever beam is supported by the support frame and the diagonal brace, the moving track is supported by the cantilever beam, the position of the hoisting device is adjusted by the movement of the moving vehicle on the moving track, and the stability and convenience of moving hoisting are improved through the hoisting of the hoisting device.

[0018] 2. The cleaning box is installed on the installation box by the cooperation of the hanging box and the hanging ear, and the stones and other impurities above the moving track are easily cleaned by the cooperation of the rotating shaft and the cleaning brush, preventing the impurities from affecting the stability and safety during the operation of the moving vehicle and the hoisting device.

[0019] 3. The fixed motor drives the fixed sleeve to rotate through the cooperation of the first bevel gear and the second bevel gear. The movement direction of the fixed screw is restricted by the connecting plate and the connecting rod. Through the relative rotation of the fixed sleeve and the fixed screw, the anchoring plate and the anchoring teeth move downward to anchor the position of the crane main body, preventing the position of the crane main body from shifting when it is not in use or in a fixed position. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the crane main body in the present utility model;

[0021] Figure 2 is Figure 1 a partially enlarged schematic diagram of A in;

[0022] Figure 3 It is a schematic diagram of the cooperation structure of the cantilever beam, the moving track, the moving vehicle, the hoisting device and the installation box in the present utility model;

[0023] Figure 4 It is a schematic diagram of the cooperation structure of the installation box and the cleaning box in the present utility model;

[0024] Figure 5 It is a schematic diagram of the overall structure of the anchoring device in the present utility model.

[0025] In the figure: 1. Crane main body; 2. Support frame; 3. Cantilever beam; 4. Moving track; 5. Moving vehicle; 6. Hoisting device; 7. Installation box; 8. Cleaning box; 9. Rotating shaft; 10. Cleaning brush; 11. Moving wheel; 12. Moving motor; 13. Hanging box; 14. Hanging ear; 15. Fixed plate; 16. Fixed sleeve; 17. Fixed screw; 18. Anchoring plate; 19. Fixed motor; 20. First bevel gear; 21. Second bevel gear; 22. Connecting plate; 23. Connecting rod; 24. Anchoring teeth; 25. Diagonal brace; 26. Limit block. Detailed Embodiment

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] It should be pointed out that unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0028] In the present utility model, unless otherwise specified, the orientations such as "upper" and "lower" generally refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" generally refer to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms are not used to limit the present utility model.

[0029] Please refer to Figures 1 - 5 , a double-cantilever bridge gantry crane, comprising a crane main body 1. The crane main body 1 includes a support frame 2. A cantilever beam 3 is provided on the support frame 2. There are two cantilever beams 3. Moving tracks 4 are provided on both of the two cantilever beams 3. A moving vehicle 5 is provided between the two moving tracks 4. A hoisting device 6 is provided on the moving vehicle 5. A cleaning device is provided at one end of the moving vehicle 5. The cleaning device includes an installation box 7. Cleaning boxes 8 are provided on both sides of the installation box 7. A rotating shaft 9 is provided in the installation box 7. A cleaning brush 10 is provided on the rotating shaft 9. The cleaning brush 10 contacts the upper surface of the moving track 4. Moving wheels 11 are symmetrically provided at the bottom of the support frame 2. There are two pairs of symmetrically arranged moving wheels 11. A moving motor 12 is connected to one pair of the moving wheels 11. An anchoring device is provided on the other pair of moving wheels 11. Hanging boxes 13 are provided on both sides of the installation box 7. Hanging ears 14 cooperating with the hanging boxes 13 are provided on the cleaning boxes 8. A diagonal brace 25 is provided on the support frame 2. Limit blocks 26 are provided on both sides of the moving track 4.

[0030] In this embodiment, the cantilever beam 3 is supported on the support frame 2 and is supported by the diagonal brace 25. When the crane main body 1 is working, the installation box 7 is arranged on one side of the moving vehicle 5. The cleaning box 8 is installed on the hanging box 13 of the installation box 7 through the hanging ear 14, and then the cleaning box 8 is fixed on both sides of the moving track 4. The moving vehicle 5 moves on the moving track 4. The moving vehicle 5 is a crane in the prior art that drives the wheels to move to drive the vehicle frame to move, and its working principle will not be described in detail here. The hoisting device 6 is an existing device that drives the hoisting belt body and the hook to move by a motor, and its working principle will not be described in detail here. The object is hoisted by the hoisting device 6. When the moving vehicle 5 moves the position of the hoisting device 6, the upper surface of the moving track 4 is cleaned by the rotating shaft 9 and the cleaning brush 10 in the installation box 7. The removed impurities slide into the cleaning boxes 8 on both sides of the installation box 7 for collection. When the crane main body 1 is maintained, the impurities in the cleaning box 8 are cleaned, thereby improving the safety and stability of the movement of the moving vehicle 5.

[0031] Please refer to Figure 5, as an embodiment of the anchoring device: The anchoring device includes a fixing plate 15, a fixing sleeve 16 is provided on the fixing plate 15, a fixing screw 17 is provided on the fixing sleeve 16, an anchoring plate 18 is provided on the fixing screw 17, a fixing motor 19 is provided on the fixing plate 15, a first bevel gear 20 is provided on the motor shaft of the fixing motor 19, a second bevel gear 21 is provided on the fixing sleeve 16, a connecting plate 22 is provided on the fixing screw 17, a connecting rod 23 is slidably provided between the connecting plate 22 and the fixing plate 15, and anchoring teeth 24 are circumferentially provided on the anchoring plate 18.

[0032] More specifically, when moving the position of the mobile crane main body 1, the moving motor 12 drives the moving wheels 11 to move. When the crane main body 1 needs to be in a stable position, the fixing motor 19 is started. The fixing motor 19 drives the fixing sleeve 16 to rotate through the cooperation of the first bevel gear 20 and the second bevel gear 21. The moving direction of the fixing screw 17 is restricted by the connecting plate 22 and the connecting rod 23. Through the relative rotation of the fixing sleeve 16 and the fixing screw 17, the anchoring plate 18 and the anchoring teeth 24 are driven to move downward to anchor the position of the crane main body 1.

[0033] In summary, when the overall equipment is in use or operation: The cantilever beam 3 is supported on the support frame 2 and is supported by the diagonal brace 25. When the crane main body 1 is working, the installation box 7 is arranged on one side of the mobile vehicle 5. The cleaning box 8 is installed on the hanging box 13 of the installation box 7 through the hanging ear 14, and then the cleaning box 8 is fixed on both sides of the moving track 4. The mobile vehicle 5 moves on the moving track 4. The mobile vehicle 5 is a crane in the prior art that drives the wheels to move through a motor to drive the vehicle frame to move, and its working principle will not be elaborated here. The hoisting device 6 is a conventional device that drives the hoisting belt body and the hook to move through a motor, and its working principle will not be elaborated here. The object is hoisted through the hoisting device 6. When the mobile vehicle 5 moves the position of the hoisting device 6, the upper surface of the moving track 4 is cleaned through the rotating shaft 9 and the cleaning brush 10 in the installation box 7, and the impurities are cleaned and slide into the cleaning boxes 8 on both sides of the installation box 7 for collection. When the crane main body 1 is maintained, the impurities in the cleaning boxes 8 are cleaned, thereby improving the safety and stability of the movement of the mobile vehicle 5.

[0034] When moving the position of the mobile crane main body 1, the moving motor 12 drives the moving wheels 11 to move. When the crane main body 1 needs to be in a stable position, the fixing motor 19 is started. The fixing motor 19 drives the fixing sleeve 16 to rotate through the cooperation of the first bevel gear 20 and the second bevel gear 21. The moving direction of the fixing screw 17 is restricted by the connecting plate 22 and the connecting rod 23. Through the relative rotation of the fixing sleeve 16 and the fixing screw 17, the anchoring plate 18 and the anchoring teeth 24 are driven to move downward to anchor the position of the crane main body 1.

[0035] In all the schemes mentioned above, the connection between two parts can be selected according to the actual situation by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably considered to be welding. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents;

[0036] In all the schemes mentioned above, if there is no clear description, the operation of electrical components is controlled by the controller. Since the devices matched with the controller are common devices, their control principles and line connections are all well-known and mature technologies, and their electrical connection relationships and specific circuit structures are not described here.

[0037] In all the solutions mentioned above, the motor involved can be matched with a reducer if actually needed. The connection structure and working principle between the motor and the reducer are existing well-known technologies and will not be elaborated in the present utility model.

Claims

1. A double-cantilever bridge gantry crane, comprising a crane main body (1), characterized in that: The crane main body (1) includes a support frame (2), a cantilever beam (3) is provided on the support frame (2), there are two cantilever beams (3), moving tracks (4) are provided on both of the two cantilever beams (3), a moving vehicle (5) is provided between the two moving tracks (4), a hoisting device (6) is provided on the moving vehicle (5), a cleaning device is provided at one end of the moving vehicle (5), the cleaning device includes an installation box (7), cleaning boxes (8) are provided on both sides of the installation box (7), a rotating shaft (9) is provided in the installation box (7), a cleaning brush (10) is provided on the rotating shaft (9), the cleaning brush (10) contacts the upper surface of the moving track (4), moving wheels (11) are symmetrically provided at the bottom of the support frame (2), there are two pairs of symmetrically arranged moving wheels (11), a moving motor (12) is connected to one pair of the moving wheels (11), and an anchoring device is provided on the other pair of the moving wheels (11).

2. The double-cantilever bridge gantry crane according to claim 1, characterized in that: Hanging boxes (13) are provided on both sides of the installation box (7), and hanging ears (14) matched with the hanging boxes (13) are provided on the cleaning boxes (8).

3. A double-cantilever bridge gantry crane according to claim 1, characterized in that: The anchoring device includes a fixing plate (15), a fixed sleeve (16) is provided on the fixing plate (15), a fixed screw (17) is provided on the fixed sleeve (16), and an anchoring plate (18) is provided on the fixed screw (17).

4. A double-cantilever bridge gantry crane according to claim 3, characterized in that: A fixed motor (19) is provided on the fixing plate (15), a first bevel gear (20) is provided on the motor shaft of the fixed motor (19), and a second bevel gear (21) is provided on the fixed sleeve (16).

5. The double-cantilever bridge gantry crane according to claim 4, characterized in that: A connecting plate (22) is provided on the fixed screw (17), and a connecting rod (23) is slidably provided between the connecting plate (22) and the fixing plate (15).

6. The double-cantilever bridge gantry crane according to claim 5, characterized in that: Anchoring teeth (24) are circumferentially provided on the anchoring plate (18).

7. A double-cantilever bridge gantry crane according to claim 1, characterized in that: A diagonal brace (25) is provided on the support frame (2).

8. A double-cantilever bridge gantry crane according to claim 1, characterized in that: Limit blocks (26) are provided on both sides of the moving track (4).

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