Hoisting mechanism for travelling crane

Abstract

The utility model belongs to the technical field of casting processing, and particularly discloses a hoisting mechanism for a travelling crane, which comprises an electric hoist, a rotating component and a moving component, the top of the electric hoist is fixedly connected with a fixed plate, and the top of the fixed plate is fixedly connected with a fixed seat; the rotating assembly comprises a motor fixedly connected in the fixed seat, the front side of the motor is fixedly connected with a rotating shaft, the rotating shaft is externally and fixedly connected with a limiting strip, the limiting strip is externally and slidably connected with two driving wheels in a penetrating manner, the rotating shaft is externally and rotatably connected with two limiting rods, and the two driving wheels are in transmission connection with driven wheels through conveying belts; rotating shafts are rotationally connected into the driven wheels, and the opposite ends of the two rotating shafts are fixedly connected with limiting wheels; the moving assembly comprises a two-way lead screw in threaded connection with the interiors of the two limiting rods, and a fixing block is rotationally connected to the exterior of the two-way lead screw. The device can be adjusted according to the width of travelling cranes of different specifications, and the application range of the device is widened.

Description

Technical Field

[0001] This utility model relates to the field of casting processing technology, specifically to a lifting mechanism for a crane. Background Technology

[0002] Overhead crane is a common name for cranes, gantry cranes, and overhead cranes. They generally use lifting mechanisms to lift heavy objects for easy use.

[0003] Currently, existing devices typically use electric hoists to lift heavy objects, but they are only suitable for cranes of fixed sizes and cannot be adjusted for cranes of different sizes. Furthermore, installation and disassembly are quite cumbersome, further increasing the limitations of existing devices. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a lifting mechanism for overhead cranes, which solves the problems that it is only applicable to overhead cranes of fixed size and cannot be adjusted according to different sizes of overhead cranes, and that the installation and disassembly are relatively cumbersome, further increasing the limitations of the existing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crane lifting mechanism, comprising:

[0006] An electric hoist, wherein a fixing plate is fixedly connected to the top of the electric hoist, and a fixing seat is fixedly connected to the top of the fixing plate;

[0007] A rotating assembly includes a motor fixedly connected to a fixed base, a rotating shaft fixedly connected to the front side of the motor, a limit strip fixedly connected to the outside of the rotating shaft, two driving wheels slidably connected through the limit strip, two limit rods rotatably connected to the outside of the rotating shaft, two driving wheels being driven by a conveyor belt, each driven wheel being rotatably connected to a rotating shaft, and a limit wheel fixedly connected to one end of each of the two rotating shafts facing each other.

[0008] A movable component, the movable component including a bidirectional lead screw threadedly connected to two limiting rods, and a fixed block rotatably connected to the bidirectional lead screw.

[0009] As a further embodiment of this utility model: the fixing block is fixedly connected to the top of the fixing plate, and a handle is fixedly connected to the front end of the bidirectional lead screw.

[0010] As a further embodiment of this utility model: both of the driving wheels are rotatably connected inside the limiting rod, and both of the rotating shafts are rotatably connected inside the limiting rod.

[0011] As a further embodiment of this utility model: both of the driving wheels are connected through the outside of the rotating shaft, and a limiting groove is provided on the top of the fixing plate.

[0012] As a further embodiment of this utility model: the limiting rod is L-shaped, and a slider is fixedly connected to the bottom of each of the two limiting rods, and a cleaning rod is fixedly connected to the right side of each of the two limiting rods.

[0013] As a further embodiment of this utility model: both sliders are slidably connected in the limiting groove, and a support block is rotatably connected to the front end of the rotating shaft.

[0014] As a further embodiment of this utility model: the bottom of the support block is fixedly connected to the top of the fixing plate, and collection boxes are fixedly connected to both the front and rear sides of the fixing block.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. This overhead crane lifting mechanism, by setting a driven wheel, a rotating shaft, a limit wheel, a double-acting lead screw, and a fixing block, allows the handle to drive the double-acting lead screw to rotate, while simultaneously causing two limit rods to drive the rotating shaft, driven wheel, driving wheel, and limit wheel to move in opposite directions outside the double-acting lead screw and rotating shaft. This facilitates the installation and disassembly of the device and allows it to be adjusted according to the width of different specifications of overhead cranes, avoiding the limitation of the device being only applicable to overhead cranes of a fixed size, and thus improving the scope of application of the device.

[0017] 2. The crane lifting mechanism, by setting up a cleaning rod, support block and collection box, allows the crane to automatically clean the sides of the crane by moving the cleaning rod, which in turn moves the cleaning rod along with the motor driving the rotating shaft and limit bar to rotate synchronously. The cleaned dust falls into the collection box, making it convenient for workers to process it in a concentrated manner and reducing the labor intensity of the workers. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a crane lifting mechanism according to the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the connection structure between the fixed seat and the motor in a crane lifting mechanism according to this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the connection structure between the fixing plate and the fixing block in a crane lifting mechanism according to this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the connection structure between the driven wheel and the shaft in a crane lifting mechanism according to this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below through specific embodiments:

[0023] The reference numerals in the accompanying drawings of the instruction manual include: 1. Electric hoist, 2. Fixed plate, 3. Fixed base, 4. Motor, 5. Rotating shaft, 6. Limit bar, 7. Driving wheel, 8. Limit rod, 9. Driven wheel, 10. Rotating shaft, 11. Limit wheel, 12. Double-acting lead screw, 13. Fixed block, 14. Handle, 15. Limit groove, 16. Slider, 17. Cleaning rod, 18. Support block, 19. Collection box.

[0024] Example

[0025] As attached Figures 1 to 4 As shown: A hoisting mechanism for a crane includes an electric hoist, a rotating assembly, and a moving assembly. The top of the electric hoist 1 is fixedly connected to a fixed plate 2, and the top of the fixed plate 2 is fixedly connected to a fixed seat 3. The rotating assembly includes a motor 4 fixedly connected to the fixed seat 3. A rotating shaft 5 is fixedly connected to the front of the motor 4. A limit bar 6 is fixedly connected to the outside of the rotating shaft 5. Two drive wheels 7 are slidably connected through the limit bar 6. Two limit rods 8 are rotatably connected to the outside of the rotating shaft 5. Both drive wheels 7 are driven by a conveyor belt and each drive wheel 9 is rotatably connected to a rotating shaft 10. A limit wheel 11 is fixedly connected to one end of each of the two rotating shafts 10. The moving assembly includes a bidirectional lead screw 12 threadedly connected to the two limit rods 8. A fixed block 13 is rotatably connected to the outside of the bidirectional lead screw 12. The fixing block 13 is fixedly connected to the top of the fixing plate 2, and the front end of the bidirectional lead screw 12 is fixedly connected to the handle 14; both drive wheels 7 are rotatably connected to the limiting rod 8, and both rotating shafts 10 are rotatably connected to the limiting rod 8; both drive wheels 7 are connected through the outside of the rotating shaft 5, and the top of the fixing plate 2 is provided with a limiting groove 15; the limiting rod 8 is L-shaped, and both bottoms of the two limiting rods 8 are fixedly connected to sliders 16, and both upper limit rods 8 are fixedly connected to cleaning rods 17; both sliders 16 are slidably connected to the limiting groove 15, and the front end of the rotating shaft 5 is rotatably connected to a support block 18; the bottom of the support block 18 is fixedly connected to the top of the fixing plate 2, and both front and rear sides of the fixing block 13 are fixedly connected to collection boxes 19.

[0026] The implementation method of this embodiment is as follows: while the handle drives the bidirectional lead screw to rotate, the two limit rods drive the rotating shaft, driven wheel, driving wheel and limit wheel to move in opposite directions outside the bidirectional lead screw and rotating shaft, thereby adapting to different travel widths.

[0027] When the motor drives the rotating shaft and the limit bar to rotate synchronously, the limit bar moves and drives the cleaning rod to clean the side of the vehicle. This allows the device to automatically clean the side of the vehicle, so that the cleaned dust can fall into the collection box for easy collection and processing by the staff, reducing the labor intensity of the staff.

[0028] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A crane lifting mechanism, characterized in that, include: An electric hoist, wherein a fixing plate is fixedly connected to the top of the electric hoist, and a fixing seat is fixedly connected to the top of the fixing plate; A rotating assembly includes a motor fixedly connected to a fixed base, a rotating shaft fixedly connected to the front side of the motor, a limit strip fixedly connected to the outside of the rotating shaft, two driving wheels slidably connected through the limit strip, two limit rods rotatably connected to the outside of the rotating shaft, two driving wheels being driven by a conveyor belt, each driven wheel being rotatably connected to a rotating shaft, and a limit wheel fixedly connected to one end of each of the two rotating shafts facing each other. A movable component, the movable component including a bidirectional lead screw threadedly connected to two limiting rods, and a fixed block rotatably connected to the bidirectional lead screw.

2. The crane lifting mechanism according to claim 1, characterized in that, The fixing block is fixedly connected to the top of the fixing plate, and the front end of the bidirectional lead screw is fixedly connected to a handle.

3. A crane lifting mechanism according to claim 2, characterized in that, Both of the driving wheels are rotatably connected within the limiting rod, and both of the rotating shafts are rotatably connected within the limiting rod.

4. A crane lifting mechanism according to claim 3, characterized in that, Both drive wheels are connected through the outside of the rotating shaft, and a limiting groove is provided on the top of the fixed plate.

5. A crane lifting mechanism according to claim 4, characterized in that, The limiting rods are L-shaped, and a slider is fixedly connected to the bottom of each of the two limiting rods. A cleaning rod is fixedly connected to the right side of each of the two limiting rods.

6. A crane lifting mechanism according to claim 5, characterized in that, Both sliders are slidably connected in the limiting groove, and a support block is rotatably connected to the front end of the rotating shaft.

7. A crane lifting mechanism according to claim 6, characterized in that, The bottom of the support block is fixedly connected to the top of the fixing plate, and collection boxes are fixedly connected to both the front and rear sides of the fixing block.

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