Travelling crane structure of grab bridge crane

Abstract

The utility model discloses a travelling crane structure of a grab bridge crane, which relates to the technical field of hoisting machinery and comprises a main beam, an end beam, a trolley, a lifting mechanism, an anti-shaking mechanism, a trolley travelling mechanism and a cart travelling mechanism, the end beams are fixedly connected to the two sides of the main beam, the top of the main beam is fixedly connected with two trolley tracks, the two sides of the top of the main beam are fixedly connected with handrails, and the bottom of the main beam is fixedly connected with a ladder; the trolley is arranged on the tops of the two trolley tracks, and a lifting mechanism used for lifting materials is arranged on the top of the trolley. The shaking force on the steel wire rope is transmitted to the guide plate through the lantern ring, the guide plate is pushed leftwards to enable the sliding block to slide on the inner wall of the box body, meanwhile, the sliding plate is pushed downwards to pull the reset spring, the reset spring is stretched and reset to relieve the shaking force, and the effect of relieving shaking of materials is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting machinery, in particular to a driving structure of a grab bucket bridge crane. Background Art

[0002] Grab bucket bridge crane is a special bridge crane, which uses grab bucket as a sling, and is mainly used for loading, unloading and lifting operations of bulk cargo, scrap steel, wood, etc. This crane is mainly composed of a box-shaped bridge, grab bucket trolley, trolley running mechanism, driver's cab and electrical control system.

[0003] In the prior art, the traveling structure of a grab bridge crane is an important part of the crane, which is mainly used to support and move the crane, as well as to carry and lift heavy objects. Application No.: 202022087870.0 discloses a grab bridge crane, which is provided with two electric hoists, whose wire ropes are connected to a horizontal plate to form a triangle, thereby overcoming the instability of a single wire rope, so that the grab bucket can quickly restore stability during the handling process, thereby improving the handling efficiency of the grab bucket.

[0004] However, when the device is in use, the hoisted cargo will swing due to gravity and inertia when the traveling mechanism moves, thus affecting the working efficiency and accuracy. At the same time, frequent swinging will cause additional stress and wear on the structure and components of the crane, which may lead to accidents.

[0005] Based on this, a grab bridge crane driving structure is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0006] The utility model aims to provide a driving structure of a grab bridge crane to solve the problems in the background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A grab bridge crane driving structure comprises: a main beam;

[0009] An end beam, wherein the end beam is fixedly connected to both sides of the main beam, two trolley tracks are fixedly connected to the top of the main beam, railings are fixedly connected to both sides of the top of the main beam, and a ladder is fixedly connected to the bottom of the main beam;

[0010] A trolley, the trolley is arranged on the top of the two trolley tracks, and a lifting mechanism for lifting materials is arranged on the top of the trolley;

[0011] An anti-sway mechanism, which is fixedly arranged at the bottom of the trolley and is used to prevent the material from shaking due to gravity when the crane is moving;

[0012] A trolley travel mechanism, the trolley travel mechanism is fixedly arranged at the bottom of the trolley, and is used to make the trolley move left and right on the trolley track;

[0013] The trolley traveling mechanism is fixedly arranged on both sides of the top of the main beam and is used to move the main beam.

[0014] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0015] In an optional solution: the lifting mechanism includes a winder, which is fixedly arranged on the top of the trolley, the input end of the winder is fixedly connected to the first motor, the output end of the winder is wound with a wire rope, the bottom of the wire rope is wound with a connecting shaft, and the bottom of the connecting shaft is fixedly connected to a grab bucket.

[0016] In an optional scheme: the anti-sway mechanism includes a box body, the box body is fixedly connected to the bottom of the trolley, the inner wall of the box body is fixedly connected to a limit plate, the bottom of the limit plate is fixedly connected to a guide rod, the inner wall of the box body is slidably connected to a sliding plate, the outer surface of the guide rod is slidably connected to the inner wall of the sliding plate, the bottom of the limit plate is fixedly connected to a return spring, the bottom of the return spring is fixedly connected to the top of the sliding plate, and the outer surface of the wire rope is provided with a tensioning component for transmitting the force generated by the shaking to the sliding plate.

[0017] In an optional scheme: the stretching assembly includes a ring, and the ring is arranged on the outer surface of the wire rope, the outer surface of the ring is fixedly connected to a guide plate, both sides of the inner wall of the box body are slidably connected to sliding blocks, the interior of the sliding blocks is rotatably connected to rolling wheels, the outer surface of the sliding block is fixedly connected to a first rotating shaft, the outer surface of the guide plate is fixedly connected to a second rotating shaft, the inner surface of the first rotating shaft is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the inner surface of the second rotating shaft.

[0018] In an optional scheme: the trolley walking mechanism includes a protective bracket, the protective bracket is fixedly arranged at the bottom of the trolley, the top of the trolley is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a first coupling, the right side of the first coupling is fixedly connected to a first reducer, both sides of the first reducer are rotatably connected to a first transmission shaft, both ends of the first transmission shaft pass through the outer surface of the protective bracket and extend to the interior of the protective bracket, both ends of the first transmission shaft are fixedly connected to a first wheel, and the left side of the second motor is fixedly connected to a first brake.

[0019] In an optional scheme: the trolley walking mechanism includes a third motor, the third motor is fixedly arranged on both sides of the top of the main beam, the right side of the third motor is fixedly connected to the second brake, the output end of the third motor is fixedly connected to the second coupling, the left side of the second coupling is fixedly connected to the second reducer, the left side of the second reducer is rotatably connected to the second transmission shaft, and the left end of the second transmission shaft is fixedly connected to the second wheel.

[0020] In an optional solution: a hole with a diameter matching that of the steel wire rope is opened on the top of the sliding plate, and a sliding slot matching that of the rolling wheel is opened inside the box body.

[0021] In an optional solution: a mounting groove having a size matching that of the first reducer is provided on the top of the trolley, and a hole for the movement of the wire rope is provided on the top of the trolley.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The utility model transmits the shaking force on the wire rope to the guide plate through the sleeve. The guide plate is pushed to the left to make the sliding block slide on the inner wall of the box body, and at the same time, the sliding plate is pushed downward, thereby pulling the reset spring. The reset spring is stretched and reset to reduce the shaking force, thereby achieving the effect of reducing the shaking of the material.

[0024] 2. The utility model drives the transmission shaft to rotate through the output end of the motor, and then drives the wheels to rotate through the rotation of the transmission shaft, so that the trolley and the main beam are moved, which is convenient for controlling the position of the grab bucket. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is an enlarged structural schematic diagram of the small and medium-sized vehicle of the utility model.

[0027] Figure 3 It is a schematic cross-sectional structural diagram of the box body in the utility model.

[0028] Figure 4 It is an enlarged structural schematic diagram of area A in the utility model.

[0029] Figure 5 It is an enlarged structural schematic diagram of area B in the utility model.

[0030] Notes on figure numbers: 1. main beam; 2. end beam; 3. trolley track; 4. railing; 5. ladder; 6. trolley; 7. winder; 8. first motor; 9. wire rope; 10. connecting shaft; 11. grab; 12. box body; 13. limit plate; 14. guide rod; 15. sliding plate; 16. return spring; 17. ring; 18. guide plate; 19. sliding block; 20. rolling wheel; 21. first rotating shaft; 22. second rotating shaft; 23. connecting rod; 24. protective bracket; 25. second motor; 26. first coupling; 27. first reducer; 28. first transmission shaft; 29. ​​first wheel; 30. first brake; 31. third motor; 32. second brake; 33. second coupling; 34. second reducer; 35. second transmission shaft; 36. second wheel. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Example 1

[0033] In one embodiment, Figure 1-Figure 5 As shown, a driving structure of a grab bridge crane comprises: a main beam 1, an end beam 2, a trolley 6, a lifting mechanism, an anti-sway mechanism, a trolley traveling mechanism and a trolley traveling mechanism; the end beam 2 is fixedly connected to both sides of the main beam 1, the top of the main beam 1 is fixedly connected to two trolley tracks 3, both sides of the top of the main beam 1 are fixedly connected to railings 4, and the bottom of the main beam 1 is fixedly connected to a ladder 5; the trolley 6 is arranged on the top of the two trolley tracks 3, and the top of the trolley 6 is provided with a lifting mechanism for lifting materials; the anti-sway mechanism is fixedly arranged at the bottom of the trolley 6, for preventing the problem of material shaking due to gravity when the crane moves; the trolley traveling mechanism is fixedly arranged at the bottom of the trolley 6, for moving the trolley left and right on the trolley track 3; the trolley traveling mechanism is fixedly arranged on both sides of the top of the main beam 1, for moving the main beam 1, and the arrangement of the trolley track 3 facilitates the trolley 6 to move left and right on the top of the trolley track 3;

[0034] In one embodiment, Figure 2 As shown, the lifting mechanism includes a winder 7, which is fixedly arranged on the top of the trolley 6. The input end of the winder 7 is fixedly connected to a first motor 8, the output end of the winder 7 is wound with a wire rope 9, the bottom of the wire rope 9 is wound with a connecting shaft 10, and the bottom of the connecting shaft 10 is fixedly connected to a grab 11. The setting of the winder 7 is convenient for winding the wire rope 9. The first motor 8 is a three-phase asynchronous motor and is externally connected to a power supply.

[0035] In one embodiment, Figure 3As shown, the anti-sway mechanism includes a box body 12, which is fixedly connected to the bottom of the trolley 6, the inner wall of the box body 12 is fixedly connected to a limit plate 13, the bottom of the limit plate 13 is fixedly connected to a guide rod 14, the inner wall of the box body 12 is slidably connected to a sliding plate 15, the outer surface of the guide rod 14 is slidably connected to the inner wall of the sliding plate 15, the bottom of the limit plate 13 is fixedly connected to a return spring 16, the bottom of the return spring 16 is fixedly connected to the top of the sliding plate 15, the outer surface of the wire rope 9 is provided with a tensioning component for transmitting the force generated by the shaking to the sliding plate 15, the top of the sliding plate 15 is provided with a hole with a diameter matching the wire rope 9, the interior of the box body 12 is provided with a sliding slot matching the rolling wheel 20, the setting of the limit plate 13 is convenient for the installation of the guide rod 14, the setting of the return spring 16 is convenient for resetting the sliding plate 15 after being pulled down, and at the same time slowing down the force generated during shaking.

[0036] In one embodiment, Figure 3 As shown, the stretching assembly includes a ring 17, and the rings 17 are all arranged on the outer surface of the wire rope 9. The outer surface of the ring 17 is fixedly connected with a guide plate 18, and both sides of the inner wall of the box body 12 are slidably connected with a sliding block 19, and the interior of the sliding block 19 is rotatably connected with a rolling wheel 20, the outer surface of the sliding block 19 is fixedly connected with a first rotating shaft 21, the outer surface of the guide plate 18 is fixedly connected with a second rotating shaft 22, and the inner surface of the first rotating shaft 21 is rotatably connected with a connecting rod 23, and the other end of the connecting rod 23 is rotatably connected to the inner surface of the second rotating shaft 22. The settings of the ring 17 and the guide plate 18 are both for guiding the force generated by the wire rope 9 when shaking, and the setting of the connecting rod 23 enables the guide plate 18 to guide the shaking force to the sliding block 19 through the connecting rod 23.

[0037] Example 2

[0038] In one embodiment, Figure 4 As shown, the trolley walking mechanism includes a protective bracket 24, which is fixedly arranged at the bottom of the trolley 6, and a second motor 25 is fixedly connected to the top of the trolley 6, and an output end of the second motor 25 is fixedly connected to a first coupling 26, and a first reducer 27 is fixedly connected to the right side of the first coupling 26, and both sides of the first reducer 27 are rotatably connected to a first transmission shaft 28, and both ends of the first transmission shaft 28 pass through the outer surface of the protective bracket 24 and extend to the inside of the protective bracket 24, and both ends of the first transmission shaft 28 are fixedly connected to a first wheel 29, and a first brake 30 is fixedly connected to the left side of the second motor 25, and a mounting groove whose size is matched with the first reducer 27 is opened on the top of the trolley 6, and a hole for the movement of the wire rope 9 is opened on the top of the trolley 6, and the setting of the protective bracket 24 is convenient for protecting the first wheel 29.

[0039] In one embodiment, Figure 5As shown, the trolley travel mechanism includes a third motor 31, and the third motor 31 is fixedly arranged on both sides of the top of the main beam 1, the right side of the third motor 31 is fixedly connected with the second brake 32, the output end of the third motor 31 is fixedly connected with the second coupling 33, the left side of the second coupling 33 is fixedly connected with the second reducer 34, the left side of the second reducer 34 is rotatably connected with the second transmission shaft 35, and the left end of the second transmission shaft 35 is fixedly connected with the second wheel 36.

[0040] The above embodiment discloses a driving structure of a grab bridge crane, wherein when the grab 11 lifts the material, the trolley 6 starts to work and transports the material. At the same time, the material shakes to generate a shaking force, which drives the wire rope 9 to shake. At the same time, the wire rope 9 touches the ring 17, and the ring 17 transmits the force to the guide plate 18. The guide plate 18 pushes the connecting rod 23 to both sides, so that the rolling wheel 20 on the sliding block 19 slides in the sliding groove on the inner wall of the box body 12. At the same time, the sliding block 19 pushes the sliding plate 15 downward on the outer surface of the guide rod 14. When the sliding plate 15 moves downward, it pulls the reset spring 16, and at this time the reset spring 16 is stretched and reset, so that The shaking force is mitigated, so that the material shakes less. The trolley travel mechanism drives the first transmission shaft 28 to rotate through the output end of the second motor 25, so that the first transmission shaft 28 drives the first wheel 29 to rotate, so that the trolley 6 moves left and right on the top of the trolley track 3. The trolley travel mechanism drives the second transmission shaft 35 to rotate through the output end of the third motor 31, so that the second transmission shaft 35 drives the second wheel 36 to rotate, thereby causing the main beam 1 to move horizontally. Through the arrangement of the first brake 30, the second brake 32, the first reducer 27 and the second reducer 34, the deceleration effect of the traveling structure during movement is improved.

[0041] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A grab bridge crane driving structure, comprising: Main beam (1); An end beam (2), the end beam (2) being fixedly connected to both sides of the main beam (1), two trolley tracks (3) being fixedly connected to the top of the main beam (1), handrails (4) being fixedly connected to both sides of the top of the main beam (1), and a ladder (5) being fixedly connected to the bottom of the main beam (1); It is characterized in that it also includes a trolley (6), the trolley (6) is arranged on the top of the two trolley tracks (3), and the top of the trolley (6) is provided with a lifting mechanism for lifting materials; An anti-sway mechanism, the anti-sway mechanism is fixedly arranged at the bottom of the trolley (6) and is used to prevent the material from shaking due to gravity when the crane is moving; A trolley running mechanism, the trolley running mechanism being fixedly arranged at the bottom of the trolley (6) and used for enabling the trolley to move left and right on the trolley track (3); A trolley traveling mechanism, wherein the trolley traveling mechanism is fixedly arranged on both sides of the top of the main beam (1) and is used to move the main beam (1).

2. The driving structure of a grab bridge crane according to claim 1, characterized in that: The lifting mechanism comprises a winder (7), wherein the winder (7) is fixedly arranged on the top of the trolley (6), the input end of the winder (7) is fixedly connected to a first motor (8), the output end of the winder (7) is wound with a steel wire rope (9), the bottom of the steel wire rope (9) is wound with a connecting shaft (10), and the bottom of the connecting shaft (10) is fixedly connected to a grab bucket (11).

3. The driving structure of a grab bridge crane according to claim 2, characterized in that: The anti-sway mechanism comprises a box body (12), the box body (12) is fixedly connected to the bottom of the trolley (6), the inner wall of the box body (12) is fixedly connected to a limit plate (13), the bottom of the limit plate (13) is fixedly connected to a guide rod (14), the inner wall of the box body (12) is slidably connected to a sliding plate (15), the outer surface of the guide rod (14) is slidably connected to the inner wall of the sliding plate (15), the bottom of the limit plate (13) is fixedly connected to a return spring (16), the bottom of the return spring (16) is fixedly connected to the top of the sliding plate (15), and the outer surface of the steel wire rope (9) is provided with a tensioning component for transmitting the force generated by shaking to the sliding plate (15).

4. The driving structure of a grab bridge crane according to claim 3, characterized in that: The stretching assembly comprises a ring (17), wherein the ring (17) is arranged on the outer surface of the steel wire rope (9), the outer surface of the ring (17) is fixedly connected to a guide plate (18), both sides of the inner wall of the box body (12) are slidably connected to sliding blocks (19), the interior of the sliding blocks (19) is rotatably connected to a rolling wheel (20), the outer surface of the sliding blocks (19) is fixedly connected to a first rotating shaft (21), the outer surface of the guide plate (18) is fixedly connected to a second rotating shaft (22), the inner surface of the first rotating shaft (21) is rotatably connected to a connecting rod (23), and the other end of the connecting rod (23) is rotatably connected to the inner surface of the second rotating shaft (22).

5. The driving structure of a grab bridge crane according to claim 1, characterized in that: The trolley walking mechanism comprises a protective bracket (24), the protective bracket (24) is fixedly arranged at the bottom of the trolley (6), the top of the trolley (6) is fixedly connected to a second motor (25), the output end of the second motor (25) is fixedly connected to a first coupling (26), the right side of the first coupling (26) is fixedly connected to a first reducer (27), both sides of the first reducer (27) are rotatably connected to a first transmission shaft (28), both ends of the first transmission shaft (28) pass through the outer surface of the protective bracket (24) and extend to the inside of the protective bracket (24), both ends of the first transmission shaft (28) are fixedly connected to a first wheel (29), and the left side of the second motor (25) is fixedly connected to a first brake (30).

6. The driving structure of a grab bridge crane according to claim 1, characterized in that: The trolley travel mechanism comprises a third motor (31), the third motor (31) is fixedly arranged on both sides of the top of the main beam (1), the right side of the third motor (31) is fixedly connected to a second brake (32), the output end of the third motor (31) is fixedly connected to a second coupling (33), the left side of the second coupling (33) is fixedly connected to a second reducer (34), the left side of the second reducer (34) is rotatably connected to a second transmission shaft (35), and the left end of the second transmission shaft (35) is fixedly connected to a second wheel (36).

7. The driving structure of a grab bridge crane according to claim 4, characterized in that: The top of the sliding plate (15) is provided with a hole having a diameter matching that of the steel wire rope (9), and the interior of the box body (12) is provided with a sliding slot matching that of the rolling wheel (20).

8. The driving structure of a grab bridge crane according to claim 5, characterized in that: The top of the trolley (6) is provided with a mounting groove whose size matches that of the first reducer (27), and the top of the trolley (6) is provided with a hole for the movement of the steel wire rope (9).

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