A large-tonnage lifting trolley with compact structure

Abstract

The utility model discloses a large-tonnage lifting trolley with a compact structure, which specifically relates to the technical field of lifting equipment, including a trolley frame, a guard plate fixedly connected to the bottom of the trolley frame, a plurality of inspection covers movably connected to the top of the trolley frame, and a moving mechanism fixedly connected to the bottom of the trolley frame; wherein the moving mechanism includes two driven trolleys, two active trolleys are fixedly connected to the right side of the inside of the trolley frame, two servo motors are fixedly connected to the bottom of the trolley frame, the output ends of the two servo motors are coaxially connected to a reducer, and the left sides of the two active trolleys are fixedly connected to a bracket. The utility model sets a moving mechanism, and the servo motor drives the double-row wheels on one side to rotate smoothly inside the active trolley through the reducer. Through the mutual cooperation of the servo motor and the reducer, the rotation speed of the double-row wheels is accurately controlled, so that the trolley frame remains stable in the process of carrying heavy objects and moving.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, and more specifically, to a large-tonnage lifting trolley with a compact structure. Background Art

[0002] The crane trolley generally refers to the crane's bridge operating mechanism, and the trolley is the operating part of the lifting mechanism, also known as a lifting trolley. The lifting trolley usually includes a trolley frame, a trolley running wheel is set on the lower side of the trolley frame, and a drum, drum motor, drum reducer and drum brake are set on the upper side of the trolley frame.

[0003] The existing mechanisms such as the drum motor, drum reducer and drum brake on the lifting trolley are arranged separately, which is not compact enough. At the same time, the trolley track usually adopts an I-beam track, a groove is set in the middle of the trolley running wheel, and the trolley usually runs along the upper wing plate of the I-beam track. During the movement of the lifting trolley, deviation may occur, causing rail gnawing.

[0004] After searching, a Chinese patent with publication number CN218619946U discloses a compact lifting trolley. The lifting drum of the utility model adopts a three-in-one reduction motor for driving and braking, which effectively saves space and makes the structure of the lifting trolley more compact. At the same time, a pulley beam is arranged on the lifting trolley, and a pulley block is installed on the pulley beam. The wire rope led out from the drum passes through the pulley block and then connected to the sling, which can improve the lifting stability to a certain extent.

[0005] However, when the above-mentioned lifting trolley is actually used, the control accuracy of the moving distance of the lifting trolley is not high enough in the process of carrying heavy objects, which affects the use efficiency of the lifting trolley. At the same time, after long-term use on the walking track, wear may occur, affecting subsequent use. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a large-tonnage lifting trolley with a compact structure to solve the problems raised in the above background technology.

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

[0008] A large-tonnage lifting trolley with a compact structure comprises a trolley frame, a guard plate is fixedly connected to the bottom of the trolley frame, a plurality of inspection covers are movably connected to the top of the trolley frame, and a moving mechanism is fixedly connected to the bottom of the trolley frame;

[0009] The moving mechanism includes two driven trolleys, two active trolleys are fixedly connected to the right side of the trolley frame, two servo motors are fixedly connected to the bottom of the trolley frame, and the output ends of the two servo motors are coaxially connected to reducers. The left sides of the two active trolleys are fixedly connected to brackets, and the two active trolleys are movably connected to two double-row wheels.

[0010] By adopting the above technical solution: the guard plate is fixedly connected at the bottom of the trolley frame, multiple inspection covers are movably connected at the top of the trolley frame, two driven trolleys are fixedly connected at the bottom of the trolley frame, two active trolleys are fixedly connected at the right side inside the trolley frame, two servo motors are fixedly connected at the bottom of the trolley frame, two reducers are coaxially connected at the output ends of the two servo motors, two brackets are fixedly connected at the left side outside the two active trolleys, and two double-row wheels are movably connected inside the two active trolleys.

[0011] As a further description of the above technical solution:

[0012] A plurality of brackets 2 are fixedly connected inside the trolley frame, and an eccentric wheel is fixedly connected outside each of the plurality of brackets 2.

[0013] By adopting the above technical solution: a plurality of brackets 2 are fixedly connected inside the trolley frame, and a plurality of eccentric wheels are fixedly connected outside the brackets 2.

[0014] As a further description of the above technical solution:

[0015] A plurality of eccentric wheels are movably connected to guide wheel frames, and a plurality of guide wheel frames are fixedly connected to two baffles on their outer sides.

[0016] By adopting the above technical solution: a plurality of guide wheel frames are movably connected inside a plurality of eccentric wheels, and a plurality of baffles are fixedly connected outside the plurality of guide wheel frames.

[0017] As a further description of the above technical solution:

[0018] Two axle pins are movably connected inside the plurality of guide wheel frames, and horizontal wheels are movably connected outside the plurality of axle pins.

[0019] By adopting the above technical solution: a plurality of axle pins are movably connected inside a plurality of guide wheel frames, and a plurality of horizontal wheels are movably connected outside the axle pins.

[0020] As a further description of the above technical solution:

[0021] An electrical control box is fixedly connected to the bottom of the trolley frame, and a plurality of inspection covers are evenly distributed on the top of the trolley frame.

[0022] By adopting the above technical solution: the electrical control box is fixedly connected to the bottom of the trolley frame, and multiple inspection covers are evenly distributed on the top of the trolley frame.

[0023] As a further description of the above technical solution:

[0024] The two active trolleys are symmetrically distributed on the right side of the bottom of the trolley frame.

[0025] By adopting the above technical solution: two active trolleys are symmetrically distributed on the right side of the bottom of the trolley frame.

[0026] As a further description of the above technical solution:

[0027] The plurality of double-row wheels are symmetrically distributed inside the two active trolleys.

[0028] By adopting the above technical solution: a plurality of double-row wheels are symmetrically distributed inside the two active trolleys.

[0029] Technical effects and advantages of the utility model:

[0030] 1. By setting up a moving mechanism, compared with the prior art, the servo motor drives the double-row wheels on one side to rotate smoothly inside the active trolley through the reducer. The rotation speed of the double-row wheels is accurately controlled through the cooperation between the servo motor and the reducer, so that the trolley frame remains stable during the movement of carrying heavy objects;

[0031] 2. By setting the second bracket, eccentric wheel, guide wheel frame, baffle, axle pin and horizontal wheel, compared with the prior art, multiple horizontal wheels are fitted to the inner wall of the walking track to assist in guiding the movement of the trolley frame, and then the angle of the horizontal wheel is adjusted by the eccentric wheel according to the wear of the horizontal wheel, so that the horizontal wheel maintains a good fit with the inner wall of the walking track. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0033] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0034] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0035] Figure 4 This is a schematic diagram of the guide wheel frame structure of the utility model.

[0036] Figure 5 It is a schematic diagram of the structure of the active trolley of the utility model.

[0037] Figure 6 It is a schematic diagram of the structure of the driven trolley of the utility model.

[0038] The accompanying drawings are marked as follows: 1. trolley frame; 2. guard plate; 3. inspection cover; 4. driven trolley; 5. driving trolley; 6. servo motor; 7. reducer; 8. bracket one; 9. double-row wheels; 10. electrical control box; 11. bracket two; 12. eccentric wheel; 13. guide wheel frame; 14. baffle; 15. axle pin; 16. horizontal wheel. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The embodiment of the present application discloses a large-tonnage lifting trolley with a compact structure, specifically comprising a trolley frame 1, a guard plate 2 is fixedly connected to the bottom of the trolley frame 1, a plurality of inspection covers 3 are movably connected to the top of the trolley frame 1, and a moving mechanism is fixedly connected to the bottom of the trolley frame 1;

[0041] The moving mechanism includes two driven trolleys 4, two active trolleys 5 are fixedly connected to the right side of the trolley frame 1, and the two active trolleys 5 are symmetrically distributed on the right side of the bottom of the trolley frame 1. Two servo motors 6 are fixedly connected to the bottom of the trolley frame 1, and the output ends of the two servo motors 6 are coaxially connected to a reducer 7. The two active trolleys 5 are fixedly connected to a bracket 8 on the left side of the outside. Two double-row wheels 9 are movably connected inside the two active trolleys 5, and multiple double-row wheels 9 are symmetrically distributed inside the two active trolleys 5. The multiple double-row wheels 9 rotate smoothly under the drive of the reducer 7. The two active trolleys 5 drive the top trolley frame 1 to move so that the trolley frame 1 moves in a balanced manner during the movement.

[0042] Reference Figure 4 As shown, specifically, a plurality of brackets 11 are fixedly connected inside the trolley frame 1, an eccentric wheel 12 is fixedly connected to the outside of the plurality of brackets 11, a guide wheel frame 13 is movably connected inside the plurality of eccentric wheels 12, two baffles 14 are fixedly connected to the outside of the plurality of guide wheel frames 13, two axle pins 15 are movably connected inside the plurality of guide wheel frames 13, and horizontal wheels 16 are movably connected to the outside of the plurality of axle pins 15. When the plurality of horizontal wheels 16 are moved, certain assistance can be provided to ensure that the plurality of horizontal wheels 16 maintain a stable fit with the walking track.

[0043] Reference Figure 1 As shown, specifically, an electrical control box 10 is fixedly connected to the bottom of the trolley frame 1 to control the movement of the trolley frame 1 .

[0044] The working principle of the utility model is as follows: a heavy object is connected and moved through a trolley frame 1. When the heavy object squeezes the trolley frame 1, the pressure on the top of the trolley frame 1 is shared by multiple driven trolleys 4 and active trolleys 5 at the bottom of the trolley frame 1, so that the trolley frame 1 can carry heavier objects. Then, two servo motors 6 drive two reducers 7 to rotate. At the same time, the two servo motors 6 work through encoders, and the two reducers 7 drive the double-row wheels 9 on the left side of the active trolley 5 to rotate. The rotation of the two double-row wheels 9 drives the top trolley frame 1 on the set walking track. The trolley frame 1 moves forward at a uniform speed in the track, so that the trolley frame 1 can accurately control the movement of the trolley under the drive of the two active trolleys 5. The two horizontal wheels 16 on the outer sides of the multiple brackets 11 are fitted to the two sides of the inner wall of the walking track through the guide wheel frame 13. After a long period of use, the multiple horizontal wheels 16 may be worn. At this time, the guide wheel frame 13 drives the eccentric wheel 12 to deviate inside, so that the multiple horizontal wheels 16 always keep in contact with the inside of the walking track, so that the trolley frame 1 remains stable during the transportation of heavy objects, avoiding large deviations of the trolley frame 1 when moving.

[0045] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large-tonnage lifting trolley with a compact structure, comprising a trolley frame (1), characterized in that: The bottom of the trolley frame (1) is fixedly connected to a guard plate (2), the top of the trolley frame (1) is movably connected to a plurality of inspection covers (3), and the bottom of the trolley frame (1) is fixedly connected to a moving mechanism; The moving mechanism comprises two driven trolleys (4), two active trolleys (5) are fixedly connected to the right side of the trolley frame (1), two servo motors (6) are fixedly connected to the bottom of the trolley frame (1), the output ends of the two servo motors (6) are coaxially connected to a reducer (7), the left sides of the two active trolleys (5) are fixedly connected to a bracket 1 (8), and the insides of the two active trolleys (5) are movably connected to two double-row wheels (9).

2. The compact large-tonnage lifting trolley according to claim 1 is characterized in that: A plurality of brackets (11) are fixedly connected inside the trolley frame (1), and an eccentric wheel (12) is fixedly connected outside the plurality of brackets (11).

3. The compact large-tonnage lifting trolley according to claim 2 is characterized in that: The interior of the plurality of eccentric wheels (12) is movably connected to a guide wheel frame (13), and the exterior of the plurality of guide wheel frames (13) is fixedly connected to two baffles (14).

4. The compact large-tonnage lifting trolley according to claim 3 is characterized in that: The guide wheel frames (13) are each movably connected to two axle pins (15) inside, and the axle pins (15) are each movably connected to a horizontal wheel (16) outside.

5. The compact large-tonnage lifting trolley according to claim 1 is characterized in that: An electrical control box (10) is fixedly connected to the bottom of the trolley frame (1), and a plurality of inspection covers (3) are evenly distributed on the top of the trolley frame (1).

6. The compact large-tonnage lifting trolley according to claim 1 is characterized by: The two active trolleys (5) are symmetrically distributed on the right side of the bottom of the trolley frame (1).

7. The compact large-tonnage lifting trolley according to claim 1 is characterized in that: The plurality of double-row wheels (9) are symmetrically distributed inside the two active trolleys (5).

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