Bridge positioning device for bridge crane

Abstract

The utility model relates to the technical field of bridge positioning, and discloses a bridge positioning device for a bridge crane, which comprises a bridge main beam, a sliding rail is arranged on the upper surface of the bridge main beam, a crane carriage is arranged on the upper surface of the sliding rail, a hoisting hook is arranged on one side of the crane carriage, and the hoisting hook is arranged on the other side of the crane carriage. A bridge auxiliary beam is fixedly connected to the lower surface of the bridge main beam, a driving wheel is installed on one side of the interior of the bridge auxiliary beam, and a positioning assembly is installed on the upper surface of the bridge main beam; the positioning assembly comprises a rack and a half gear. The hydraulic cylinder drives the connecting plate to move, then the effect that the half gear is driven to be clamped on the outer side of the rack is achieved, at the moment, clamping positioning is conducted through the half gear along the rack, the effect of accurate positioning is achieved through meshing between teeth, and through the arrangement of the buffering assembly, the service life of the rack is prolonged. And therefore, the effect of reducing the movement buffering force of the half gear is achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge positioning technology, and in particular to a bridge positioning device for bridge cranes. Background Technology

[0002] Bridge cranes are heavy-duty lifting equipment widely used in factories, warehouses, docks, and other locations. They mainly consist of a bridge frame, a lifting trolley, a traveling mechanism, and an electrical control system. Capable of three-dimensional material handling, they feature high lifting capacity, wide coverage, and flexible operation. Using a bridge positioning device allows for precise control of the crane's position, ensuring accurate material placement during lifting, reducing errors, and improving operational efficiency. It also enhances safety, preventing collisions or over-limit operation, and reducing accident risks. The positioning device can be integrated with automated control systems for automatic positioning and operation, reducing manual operation and improving production efficiency. Precise positioning reduces unnecessary movement and adjustments, lowering equipment wear and extending service life. In complex working conditions, the positioning device ensures stable crane operation and improves operational flexibility. Fast and accurate positioning shortens lifting time, improves overall operational efficiency, and reduces production costs. In short, bridge positioning devices significantly improve the operational efficiency, safety, and automation level of bridge cranes, making them suitable for various complex industrial scenarios.

[0003] Existing bridge cranes lack precise positioning control for the movement of the bridge frame and trolley, forcing operators to rely on experience and visual inspection to determine the position of the hook or grab, which is prone to errors. These errors are particularly noticeable when lifting precision equipment or materials requiring high-precision placement, potentially leading to material placement deviations, collisions, or even accidents. Furthermore, the lack of a positioning structure increases operational difficulty and reduces work efficiency. Especially in large workshops or warehouses, frequent adjustments and corrections further prolong lifting time and increase production costs. Therefore, a bridge frame positioning device for bridge cranes is proposed to address these problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a bridge positioning device for bridge cranes, aiming to improve the problem that the existing technology lacks a structure for positioning the crane trolley, which leads to the bridge crane being unable to accurately reach the required lifting position when lifting goods.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bridge frame positioning device for a bridge crane, comprising a bridge frame main beam, a slide rail provided on the upper surface of the bridge frame main beam, a lifting trolley provided on the upper surface of the slide rail, a lifting hook installed on one side of the lifting trolley, a bridge frame secondary beam fixedly connected to the lower surface of the bridge frame main beam, a drive wheel installed on one side inside the bridge frame secondary beam, and a positioning component installed on the upper surface of the bridge frame main beam;

[0006] The positioning assembly includes a rack and a half gear. The lower surface of the rack is fixedly connected to the upper surface of the main beam of the bridge frame. The rack and the half gear are meshed together. A sliding rod is fixedly connected to one side of the outer wall of the half gear. A sleeve is slidably connected to the outer wall of the sliding rod. A hinge block is rotatably connected to the inner wall of the sleeve. A connecting plate is fixedly connected to the upper surface of the hinge block. A hydraulic cylinder is fixedly connected to one side of the lifting trolley. The output end of the hydraulic cylinder is fixedly connected to the upper surface of the connecting plate. A buffer assembly is installed on the lower surface of the connecting plate.

[0007] Furthermore, the buffer assembly includes a telescopic rod and a spring. One end of the telescopic rod is rotatably connected to the lower surface of the connecting plate, the spring is sleeved on the outer wall of the telescopic rod, and the other end of the telescopic rod is rotatably connected to a bracket via a hinge seat.

[0008] Furthermore, a motor is fixedly connected to one side of the upper surface of the bridge sub-beam, and a worm gear is fixedly connected to the output end of the motor.

[0009] Furthermore, a support frame is fixedly connected to the upper surface of the bridge sub-beam on the side away from the motor, and a rotating rod is rotatably connected inside the support frame.

[0010] Furthermore, a worm gear is fixedly connected to the outer wall of the rotating rod, and the worm gear meshes with the worm.

[0011] Furthermore, a C-shaped frame is fixedly connected to one side of the outer wall of the rotating rod, and an anti-slip pad is rotatably connected to the outer wall of the C-shaped frame.

[0012] Furthermore, the inner wall of the bracket is rotatably connected to the outer wall of the half gear, and the bracket is used to limit the movement of the half gear.

[0013] Furthermore, the rack is disposed on one side of the slide rail, and the rack is used to position the lifting trolley.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the connecting plate is moved by the hydraulic cylinder, thereby achieving the effect of driving the half gear to engage with the outside of the rack. At this time, the half gear is engaged and positioned along the rack. The meshing between the teeth achieves the effect of precise positioning. Furthermore, the buffer component reduces the movement force of the half gear, thereby improving the practicality of the device.

[0016] 2. In this utility model, the worm gear is driven to rotate by a motor, and then rotates by meshing with the worm wheel, thereby facilitating the rotation of the C-shaped frame on the outer wall of the rotating rod. The movement of the C-shaped frame then causes the anti-slip pad to contact the moving frame. The friction of the anti-slip pad facilitates further positioning, thus improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a bridge positioning device for a bridge crane proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the main beam structure of a bridge frame positioning device for a bridge crane proposed in this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0020] Figure 4 for Figure 1 Enlarged view of point B in the image.

[0021] Legend:

[0022] 1. Cable tray main beam; 2. Lifting trolley; 3. Lifting hook; 4. Slide rail; 5. Cable tray secondary beam; 6. Drive wheel; 7. Rack; 8. Hydraulic cylinder; 9. Connecting plate; 10. Hinge block; 11. Housing; 12. Sliding rod; 13. Half gear; 14. Bracket; 15. Hinge seat; 16. Telescopic rod; 17. Spring; 18. Motor; 19. Worm gear; 20. Support frame; 21. Worm wheel; 22. Rotating rod; 23. C-shaped frame; 24. Anti-slip mat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 - Figure 4This utility model provides an embodiment of a bridge crane positioning device, comprising a main bridge beam 1, a slide rail 4 on the upper surface of the main bridge beam 1 for guiding the movement of a lifting trolley 2; a lifting trolley 2 on the upper surface of the slide rail 4 for carrying and moving a lifting hook 3; a lifting hook 3 installed on one side of the lifting trolley 2 for lifting goods; a secondary bridge beam 5 fixedly connected to the lower surface of the main bridge beam 1 for enhancing the structural strength of the main bridge beam 1; and the interior of the secondary bridge beam 5... A drive wheel 6 is installed on one side, which drives the main beam 1 of the bridge frame to move along the track. A positioning assembly is installed on the upper surface of the main beam 1 of the bridge frame, which is used to precisely control the position of the lifting trolley 2. The positioning assembly includes a rack 7 and a half gear 13. The lower surface of the rack 7 is fixedly connected to the upper surface of the main beam 1 of the bridge frame. The rack 7 is used to mesh with the half gear 13 to provide precise positioning control. The rack 7 is meshed with the half gear 13, and the half gear 13 is used to drive the sliding rod 12 to move through the meshing motion. A sliding rod is fixedly connected to one side of the outer wall of the half gear 13. The moving rod 12 and sliding rod 12 are used to transmit the movement of the half gear 13; a sleeve 11 is slidably connected to the outer wall of the sliding rod 12, and the sleeve 11 is used to support the sliding rod 12 and provide a sliding track; a hinge block 10 is rotatably connected to the inner wall of the sleeve 11, and the hinge block 10 is used to connect the sleeve 11 and the connecting plate 9; a connecting plate 9 is fixedly connected to the upper surface of the hinge block 10, and the connecting plate 9 is used to connect the hinge block 10 and the hydraulic cylinder 8; a hydraulic cylinder 8 is fixedly connected to one side of the lifting trolley 2, and the hydraulic cylinder 8 is used to provide power to drive the connecting plate 9 to move; the hydraulic cylinder 8 outputs... The outlet end is fixedly connected to the upper surface of the connecting plate 9. A buffer assembly is installed on the lower surface of the connecting plate 9. The buffer assembly is used to reduce the impact and vibration during the positioning process. The buffer assembly includes a telescopic rod 16 and a spring 17. One end of the telescopic rod 16 is rotatably connected to the lower surface of the connecting plate 9. The telescopic rod 16 is used to transmit the buffering force. The spring 17 is sleeved on the outer wall of the telescopic rod 16. The spring 17 is used to provide the buffering force and reduce the impact. The other end of the telescopic rod 16 is rotatably connected to a bracket 14 through a hinge seat 15. The bracket 14 is used to fix the telescopic rod 16 and provide support.

[0025] Specifically, the precise positioning and stable operation of the crane trolley 2 are achieved through the cooperation of the positioning component and the buffer component; the meshing motion of the rack 7 and the half gear 13 ensures the position control accuracy of the crane trolley 2; the hydraulic cylinder 8 drives the sliding rod 12 to move through the connecting plate 9, further improving the positioning accuracy; the buffer component reduces the impact and vibration during the positioning process through the cooperation of the telescopic rod 16 and the spring 17, ensuring the smooth operation of the crane trolley 2; the overall design significantly improves the positioning accuracy and operating efficiency of the bridge crane, reduces operating errors and equipment wear, and is suitable for high-precision lifting operations.

[0026] Reference Figure 1 - Figure 4A motor 18 is fixedly connected to one side of the upper surface of the cable tray sub-beam 5, and the motor 18 is used to provide power. A worm gear 19 is fixedly connected to the output end of the motor 18, and the worm gear 19 is used to transmit the rotational motion of the motor 18. A support frame 20 is fixedly connected to the side of the upper surface of the cable tray sub-beam 5 away from the motor 18, and the support frame 20 is used to support the rotating rod 22. The rotating rod 22 is rotatably connected inside the support frame 20, and the rotating rod 22 is used to transmit the rotational motion of the worm gear 19. A worm wheel 21 is fixedly connected to the outer wall of the rotating rod 22, and the worm wheel 21 meshes with the worm gear 19. The worm wheel 21 is used to transmit the rotational motion of the worm gear 19. The rotational motion of the worm gear 19 is converted into the rotation of the rotating rod 22. A C-shaped frame 23 is fixedly connected to one side of the outer wall of the rotating rod 22. The C-shaped frame 23 is used to connect the rotating rod 22 and the anti-slip pad 24. The anti-slip pad 24 is rotatably connected to the outer wall of the C-shaped frame 23. The anti-slip pad 24 is used to increase friction and prevent slippage. The inner wall of the bracket 14 is rotatably connected to the outer wall of the half gear 13. The bracket 14 is used to limit the half gear 13 and ensure the stable operation of the half gear 13. The rack 7 is set on one side of the slide rail 4. The rack 7 is used to mesh with the half gear 13 to accurately position the lifting trolley 2.

[0027] Specifically, the driving and positioning functions of the bridge sub-beam 5 are realized through the cooperation of motor 18, worm gear 19, worm wheel 21, rotating rod 22, C-shaped frame 23 and anti-slip pad 24; motor 18 drives rotating rod 22 to rotate through the meshing motion of worm gear 19 and worm wheel 21, thereby driving C-shaped frame 23 and anti-slip pad 24 to move, ensuring the stable operation of bridge sub-beam 5; bracket 14 ensures the accuracy and stability of positioning components through limiting half gear 13; the meshing motion of rack 7 and half gear 13 further improves the positioning accuracy of crane trolley 2.

[0028] Working principle: When the positioning device is used to position the crane trolley 2, the hydraulic cylinder 8 is first started. At this time, the hydraulic cylinder 8 drives the half gear 13 to move closer to the rack 7, thereby facilitating the positioning of the half gear 13 by engaging it on the rack 7. Then, the half gear 13 drives the sliding rod 12 to slide on the inner wall of the housing 11, thereby facilitating the extension and retraction of the support 14 and the telescopic rod 16. At the same time, the extension and retraction of the spring 17 facilitates the reduction of the impact force of movement and achieves efficient positioning. When the movement of the bridge sub-beam 5 needs to be positioned, the motor 18 is started. The motor 18 drives the worm gear 19 to mesh and rotate with the worm wheel 21. The rotation of the worm wheel 21 then drives the C-shaped frame 23 to rotate. The movement of the C-shaped frame 23 then facilitates the positioning of the anti-slip pad 24.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bridge frame positioning device for a bridge crane, comprising a bridge frame main beam (1), characterized in that: The upper surface of the main beam (1) of the cable tray is provided with a slide rail (4), the upper surface of the slide rail (4) is provided with a lifting trolley (2), a lifting hook (3) is installed on one side of the lifting trolley (2), a cable tray sub-beam (5) is fixedly connected to the lower surface of the main beam (1), a drive wheel (6) is installed on one side inside the cable tray sub-beam (5), and a positioning component is installed on the upper surface of the main beam (1). The positioning assembly includes a rack (7) and a half gear (13). The lower surface of the rack (7) is fixedly connected to the upper surface of the main beam (1) of the bridge frame. The rack (7) meshes with the half gear (13). A sliding rod (12) is fixedly connected to one side of the outer wall of the half gear (13). A sleeve (11) is slidably connected to the outer wall of the sliding rod (12). A hinge block (10) is rotatably connected to the inner wall of the sleeve (11). A connecting plate (9) is fixedly connected to the upper surface of the hinge block (10). A hydraulic cylinder (8) is fixedly connected to one side of the lifting trolley (2). The output end of the hydraulic cylinder (8) is fixedly connected to the upper surface of the connecting plate (9). A buffer assembly is installed on the lower surface of the connecting plate (9).

2. The bridge positioning device for a bridge crane according to claim 1, characterized in that: The buffer assembly includes a telescopic rod (16) and a spring (17). One end of the telescopic rod (16) is rotatably connected to the lower surface of the connecting plate (9), and the spring (17) is sleeved on the outer wall of the telescopic rod (16). The other end of the telescopic rod (16) is rotatably connected to a bracket (14) through a hinge seat (15).

3. A bridge positioning device for a bridge crane according to claim 1, characterized in that: A motor (18) is fixedly connected to one side of the upper surface of the bridge sub-beam (5), and a worm gear (19) is fixedly connected to the output end of the motor (18).

4. A bridge positioning device for a bridge crane according to claim 1, characterized in that: A support frame (20) is fixedly connected to the upper surface of the sub-beam (5) away from the motor (18), and a rotating rod (22) is rotatably connected inside the support frame (20).

5. A bridge positioning device for a bridge crane according to claim 4, characterized in that: A worm wheel (21) is fixedly connected to the outer wall of the rotating rod (22), and the worm wheel (21) is meshed with the worm (19).

6. A bridge positioning device for a bridge crane according to claim 5, characterized in that: A C-shaped frame (23) is fixedly connected to one side of the outer wall of the rotating rod (22), and an anti-slip pad (24) is rotatably connected to the outer wall of the C-shaped frame (23).

7. A bridge positioning device for a bridge crane according to claim 2, characterized in that: The inner wall of the bracket (14) is rotatably connected to the outer wall of the half gear (13), and the bracket (14) is used to limit the half gear (13).

8. A bridge positioning device for a bridge crane according to claim 1, characterized in that: The rack (7) is disposed on one side of the slide rail (4) and is used to position the crane trolley (2).

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