CN203269412U - Tower crane capable of carrying driver to get on and get off crane - Google Patents

Abstract

The utility model discloses a tower crane capable of carrying a driver up and down, which belongs to the technical field of construction machinery. The utility model includes a climbing ladder, a standard section, a slewing tower, a guide rail, a lower limit switch, a car, an upper limit switch, a steel wire rope, a safety gear, a wireless controller and a power mechanism. The power mechanism includes a motor, a reel, a brake and a power distribution box; the distribution box is electrically connected with the motor, and the motor controls the rotation of the reel. A brake is provided on one side of the reel, and a steel wire rope is wound on the reel; the lower part of the wire rope is connected with a car, and the car is located inside the standard section; the guide rail is fixed on The standard section is adjacent to the two side walls, and the guide rail is engaged with the car; the wireless controller controls the lifting of the car; the safety gear is fixed at the bottom of the car, and the safety gear is movably connected with the guide rail; the bottom of the tower crane is equipped with a lower limit switch, the upper part is provided with an upper limit switch. The utility model is mainly used for the convenient, fast and safe loading and unloading of the tower crane by the driver.

Description

A tower crane capable of carrying a driver up and down

technical field

The utility model relates to a tower crane, in particular to a tower crane which can carry a driver up and down.

Background technique

Tower cranes, commonly known as tower cranes, are the most commonly used lifting equipment on construction sites, especially high-rise building construction sites usually use tower cranes to solve the vertical transportation and horizontal distribution of construction materials such as steel bars, wooden corrugations, and scaffolding pipes. And other issues. With the improvement of modern construction technology, the height of buildings is also rising, making the installation height of construction tower cranes higher and higher. It is becoming more and more time-consuming and labor-intensive for tower crane drivers to go up and down the tower crane cab. In order to save time and not affect the progress of the project, tower crane drivers often stay in the narrow cab all day long. I dare not drink too much, and the working environment is very difficult. In addition, tower crane drivers mostly go up and down through the ladders installed inside the tower body. In winter, the ladders often freeze on ice. Drivers are prone to slipping when climbing the ladders with bare hands, posing a great safety hazard.

At present, for high-rise buildings, in order to save the time for the tower crane driver to go up and down the tower crane, the tower crane driver first takes the construction elevator to a certain height, then enters the tower crane tower body through the attachment device, and then enters the cab through the ladder. This kind scheme is very inconvenient equally, and there is potential safety hazard.

How to solve the problem of tower crane drivers getting on and off safely? After searching, relevant patents have been published, such as:

Chinese Patent No. ZL201020193132.8, the date of authorization announcement is February 9, 2011, the name of the invention is: a manned elevator for tower cranes, the application relates to a manned elevator for tower cranes , including elevator guide rail frame, car, backpack frame, reducer, speed limiter, base and buffer, described elevator guide rail frame is provided with rack, the gear of reducer on the backpack frame meshes with the rack, in the elevator The guide rail frame is also equipped with a limit limit touch iron and an elevator anti-off device; above the car is provided with a car guardrail and an anti-off device for the car frame, and an overload device is also installed at the bottom of the car. There is a manual car door at the side end, and an elevator protective fence, a landing door device and a manual landing door at the bottom. This application is safe, reliable, beautiful and comfortable, and easy to use, but this application has a large change to the structure of the existing conventional tower crane, and the structure is complicated, so it is not easy to popularize.

China Patent Authorization Announcement No. CN2195538Y, the authorized announcement date is April 26, 1995, and the name of the invention is: Tower Crane with People and Freight Elevator Attached. The application relates to a Tower Crane with People and Freight Elevator for Building Construction , Weld two steel guide rails on the web bars on both sides of the tower body, the guide wheels set on the elevator cage hug the guide rails, and use the power of the hoist to make the elevator cage in the Run up and down on the guide rail. The main advantage of this application is that the designed structure of the elevator for people and goods can be attached to a tower crane with any shape in the cross-section of the main body of the tower. The tower crane does not need a special structure. Outer rack or inner rack. Therefore, it can be widely adopted in construction sites. However, the manned elevator in this application is installed outside the tower crane, and the elevator is a cage type, which has potential safety hazards.

Utility model content

1. The technical problems to be solved by the utility model

The purpose of the utility model is to overcome the deficiency that the existing tower crane cannot carry the driver up and down conveniently, quickly and safely, and provides a tower crane capable of carrying the driver up and down.

2. Technical solution

In order to achieve the above object, the technical solution provided by the utility model is:

The utility model relates to a tower crane capable of carrying a driver up and down, including a ladder, a standard section and a slewing tower. The standard section is a cubic frame structure, and also includes a guide rail, a lower limit switch, a car, an upper limit switch, Steel wire rope, safety gear, wireless controller and power mechanism. The power mechanism is fixed on the slewing tower. The power mechanism includes a motor, a reel, a brake and a distribution box; the power distribution box is electrically connected to the motor, and the motor To control the rotation of the reel, a brake is provided on one side of the reel, and a wire rope is wound on the reel; a car is connected to the lower part of the wire rope, and the car is located inside the standard section; the guide rail is fixed On the two side walls adjacent to the standard section, the guide rails are located on both sides of the car, and the guide rails are engaged with the car; the wireless controller controls the lifting of the car by controlling the power mechanism; the safety gear is fixed on the car At the bottom, the safety gear is movably connected with the guide rail; the bottom of the tower crane is provided with a lower limit switch, and the upper part of the tower crane is provided with an upper limit switch.

As a further improvement of the utility model, the side of the car near the ladder and the side far away from the ladder are both provided with a car hall door.

As a further improvement of the utility model, the car hall door of the car is a push-pull structure up and down or left and right.

3. Beneficial effect

Compared with the existing known technology, the technical solution provided by the utility model has the following remarkable effects:

(1) The tower crane of the utility model that can carry the driver up and down does not need to change the structure of the existing tower crane, and only needs to modify the tower crane accordingly, such as welding guide rails on the standard section of the tower crane, turning the tower The required functions can be realized by installing the power mechanism on the frame, the modification cost is low, and it is easy to promote;

(2) The utility model is a kind of tower crane that can carry the driver up and down. The wireless controller controls the lifting of the car, without the need for towing cables. The structure is simple, the installation is convenient, and it is safe and reliable;

(3) The utility model is a tower crane that can carry the driver up and down. The driver of the tower crane can take the car up and down freely, saving time and effort, and the car is set inside the standard section, and the bottom of the car is equipped with a safety gear, which is very good. It ensures the safety of the driver getting on and off the tower crane.

Description of drawings

Fig. 1 is a structural schematic diagram of a tower crane capable of carrying a driver up and down according to the present invention.

Explanation of the labels in the schematic diagram:

1. Guide rail; 2. Lower limit switch; 3. Ladder; 4. Car; 5. Standard section; 6. Upper limit switch; 7. Wire rope; 8. Safety gear; 9. Motor; 10. Reel; 11. Brake; 12. Rotary tower; 13. Distribution box.

Detailed ways

In order to further understand the content of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

Example 1

In conjunction with Fig. 1, a kind of tower crane that can carry the driver up and down in this embodiment includes a ladder 3, a standard section 5 and a slewing tower 12, the standard section 5 is a cubic frame structure, the tower crane of this embodiment The structure of the existing tower crane is not changed, but the existing tower crane is modified accordingly. The tower crane of this embodiment also includes a guide rail 1, a lower limit switch 2, a car 4, an upper limit switch 6, a steel wire rope 7, a safety gear 8, a wireless controller and a power mechanism, and the power mechanism is fixed on the slewing tower 12, the power mechanism includes a motor 9, a reel 10, a brake 11 and a distribution box 13, the distribution box 13 is electrically connected to the motor 9, the motor 9 controls the rotation of the reel 10, and one of the reels 10 A brake 11 is provided on the side, and a steel wire rope 7 is wound on the reel 10 . The lower part of the steel wire rope 7 is connected with a car 4, and the car 4 is located inside the standard section 5, and the car 4 reasonably utilizes the available space inside the standard section 5. The guide rail 1 is fixed on the adjacent two side walls of the standard section 5 by welding, the guide rail 1 is located on both sides of the car 4, the guide rail 1 is engaged with the car 4, and is fixed by the traction of the steel wire rope 7 and the engagement of the guide rail 1 , so that the car 4 can still ensure normal operation even under conditions such as strong wind in the construction environment and encountering rainy and snowy weather. The wireless controller controls the ascending, descending and stopping operations of the car 4. The wireless controller can be set inside the car 4 or held by the tower crane driver. The ascending, descending and stopping signals of the car 4 are all transmitted wirelessly. No trailing cables are required, reducing retrofit costs. The safety gear 8 is fixed on the bottom of the car 4, and the safety gear 8 is movably connected with the guide rail 1. The safety gear 8 is used for emergency and rapid braking of the car 4 in an emergency, and the setting of the safety gear 8 is well guaranteed. The safety of the tower crane driver getting on and off the crane. The side of the car 4 close to the ladder 3 and away from the ladder 3 is provided with a car hall door. If the car 4 suddenly breaks down during the ascent or descent, the safety gear 8 will brake the car 4 in mid-air in an emergency. The tower crane driver can safely evacuate from the ladder 3 by opening the car hall door on the side close to the ladder 3 . The car hall door of the car 4 described in this embodiment is a push-pull structure up and down, the bottom of the tower crane is provided with a lower limit switch 2, the upper part of the tower crane is provided with an upper limit switch 6, and a lower limit switch 2 And upper limit switch 6 is fixed with guide rail 1 by welding.

The following specifically describes the use process of a tower crane that can carry a driver up and down in this embodiment:

Take the tower crane driver who needs to enter the cab to control the work of the tower crane as an example. The tower crane driver only needs to open the car hall door, enter the car 4, and control the wireless controller to send a rising signal. The power mechanism on the slewing tower 12 is provided with The signal receiving device can receive the rising signal. After receiving the rising signal, the power mechanism controls the motor 9 to rotate forward, the motor 9 drives the reel 10 to rotate, and the wire rope 7 pulls the car 4 to rise at an appropriate speed along the guide rail 1. When the car 4 When the position of the upper limit switch 6 is reached, the wireless controller sends a stop signal, the motor 9 stops rotating, and the car 4 stops at the designated position, so that the tower crane driver can easily enter the driver's cab, saving time and effort.

Example 2

Compared with Embodiment 1, the tower crane of this embodiment that can carry a driver up and down is different in that: the car hall door of the car 4 is a left and right push-pull structure.

The above embodiment of a tower crane capable of carrying a driver up and down has a simple structure, convenient installation, low modification cost, safety and reliability, and is easy to popularize.

The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural mode and an embodiment similar to the technical solution, it shall belong to the utility model. protected range.

Claims (3)

1. one kind can carry driver's tower crane up and down, comprise cat ladder (3), standard knot (5) and revolution pylon (12), described standard knot (5) is the cube frame structure, it is characterized in that: also comprise guide rail (1), lower position switch (2), car (4), upper limit position switch (6), steel rope (7), safety tongs (8), wireless controller and actuating unit, described actuating unit is fixed on revolution pylon (12), and actuating unit comprises motor (9), reel (10), drg (11) and switch box (13); Described switch box (13) is electrically connected to motor (9), and motor (9) is controlled reel (10) and rotated, and a side of described reel (10) is provided with drg (11), is wound with steel rope (7) on this reel (10); Described steel rope (7) bottom is connected with car (4), and described car (4) is positioned at standard knot (5) inside; Described guide rail (1) is fixed in standard knot (5) adjacent two side, and guide rail (1) is positioned at car (4) both sides, this guide rail (1) and car (4) engagement connection; Described wireless controller is controlled the lifting of car (4) by controlling actuating unit; Described safety tongs (8) is fixed in bottom car (4), and this safety tongs (8) is flexibly connected with guide rail (1); Tower crane bottom is provided with lower position switch (2), and tower crane top is provided with upper limit position switch (6).

2. a kind of tower crane that carries driver up and down according to claim 1 is characterized in that: described car (4) is provided with car Room door near cat ladder (3) and away from the one side of cat ladder (3).

3. a kind of tower crane that carries driver up and down according to claim 2 is characterized in that: the car Room door of described car (4) is for up and down or the left and right push-pull structure.