CN206058747U - Instruction derrick crane is examined in a kind of teaching - Google Patents

Abstract

The utility model discloses a tower crane for teaching and training, which comprises a balance arm, a lifting arm, a revolving tower body, a driver's cab, a tower body and an underframe, and the lifting arm is fixedly installed on the revolving tower body The balance arm is fixedly installed on the rear side of the slewing tower body; the slewing tower body is connected with the tower body through a slewing mechanism, and the slewing mechanism includes upper branches connected sequentially from top to bottom Seat, slewing support and lower support, the slewing tower body is fixedly connected to the upper support, the lower support is fixedly connected to the upper end of the tower body; the lower end of the tower body is fixedly installed on On the underframe; the cab is fixed on the right side of the slewing tower body. The tower crane used for teaching, examination and training of the utility model can allow many people to climb the tower to study at the same time, has low comprehensive cost, and is safe, reliable and easy to maintain.

Description

A tower crane for teaching and training

technical field

The utility model relates to a tower crane; in particular, the utility model relates to a tower crane for teaching and training.

Background technique

Tower cranes (referred to as tower cranes) are the main construction machinery in the construction field. Due to the high risk of tower crane operation, tower crane driver operation training is listed as a special operation training category. Therefore, during the training process of the tower crane driver, the students must have enough practical training sessions, so the students should be allowed to observe on the tower crane to understand the structure of the tower crane and the mechanism of the safety protection device, and through the guidance of the trainer Hands-on training in high-altitude environments.

Improving the quality of tower crane driver training is an important link to ensure the safe construction of tower cranes. At present, the training of tower crane drivers at home and abroad is carried out on construction tower cranes. Since this type of tower crane is specially designed for building construction, its space setting does not consider teaching needs, and cannot provide enough space for trainers to demonstrate operations on the tower , It is not allowed for the coach to sit next to the students to guide the operation. Considering safety factors, construction tower cranes do not allow multiple trainees to climb the tower to observe and learn at the same time, so the training efficiency is low. At the same time, due to the generally high power of construction tower cranes, the use of such tower cranes for teaching and training consumes a lot of energy and the training cost is very high. At this stage, the tower cranes used in the training of tower crane drivers are basically old tower cranes eliminated at the construction site, so there are potential safety hazards.

Chinese patent CN204117488U discloses a teaching demonstration tower crane, which solves the problem that the demonstration is not intuitive due to the inability to combine the operation and control of the tower crane in the teaching work of the tower crane. The tower crane can realize free movement in six directions, and the boom can Free rotation of 360 degrees left and right, the hook can run up and down, and the crane can move forward and backward. Through the mutual control of the operation button, the distribution box and the motor, the working process of the tower crane can be intuitively demonstrated in the teaching. Due to the small size of the tower crane in this kind of teaching demonstration, although the safety is high, the operation action of the tower crane on the construction site can also be displayed, but the students do not have a sense of high-altitude experience and cannot simulate the operating environment of the tower crane on the construction site. The teaching effect is poor, and it is only suitable for cognition Understand the structure and use of tower cranes in the first stage.

Chinese patent CN103295457A discloses a fully simulated, remote-controlled, and safe tower crane assembly and disassembly teaching aid for training, so that all personnel who are about to enter the tower crane assembly and disassembly industry can obtain the real operation under the condition of safety and low cost. The training in the same environment can improve the skills and safety quality of employees, so that all special operators engaged in this work can really be competent for this work, so that the safety of tower crane assembly and disassembly operations can be effectively guaranteed. However, this type of tower crane is only aimed at tower crane disassembly and structural awareness training and cannot train tower crane drivers.

Utility model content

In order to solve the above problems, the utility model provides a tower crane for teaching and training, which can not only carry out disassembly and assembly of tower cranes and training on structural understanding, but also provide operation training for tower crane drivers.

In order to achieve the above purpose, the tower crane used for teaching and training of the present utility model includes a balance arm, a lifting arm, a slewing tower body, a driver's cab, a tower body and an underframe, and the lifting arm is fixedly installed on the slewing tower body The balance arm is fixedly installed on the rear side of the slewing tower body; the slewing tower body is connected to the tower body through a slewing mechanism, and the slewing mechanism includes upper branches connected sequentially from top to bottom Seat, slewing support and lower support, the slewing tower body is fixedly connected on the upper support, the lower support is fixedly connected with the upper end of the tower body; the lower end of the tower body is fixedly installed on On the underframe; the cab is fixed on the right side of the slewing tower body.

Preferably, the two sides of the balance arm are respectively provided with a left walking platform and a right walking platform, the left side of the boom is provided with a boom walking platform, and the boom walking platform is connected to the left side Connected by walking.

Preferably, the right walking platform communicates with the driver's cab.

Preferably, the side parts of the left walkway, the right walkway and the boom walkway are respectively provided with guardrails.

Preferably, a passage opening is opened on the boom walking platform, and a movable door is installed on the passage opening.

Preferably, a driver's seat and a trainer's seat are arranged in the cab.

Preferably, a linkage operating platform is provided between the driver's seat and the trainer's seat, and an emergency stop button is provided on the linkage operating platform.

Preferably, the body of the slewing tower is triangular in shape.

Preferably, a ladder is provided outside the tower body.

Preferably, a weight block is placed on the bottom frame.

The teaching and training tower crane of the utility model can allow many people to climb the tower at the same time to learn, observe and experience the sense of high-altitude operation, and at the same time, the trainer can guide and supervise the operation of the students or the students can observe and use it. When students are allowed to operate in practice, the trainer will guide on one side and provide safety protection in case of emergency, and the control power can be cut off in case of emergency. The teaching and training tower crane of the utility model has low comprehensive cost, lower installation and moving costs than ordinary tower cranes, and is safe, reliable and easy to maintain.

Description of drawings

Fig. 1 is the schematic diagram of the teaching examination and training tower crane of the present utility model;

Fig. 2 is a partially enlarged schematic diagram of area A in Fig. 1;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is a schematic diagram showing the internal structure of the cab.

detailed description

The teaching and training tower crane of the present utility model will be further described in detail below in conjunction with the accompanying drawings, but it is not intended as a limitation of the present utility model.

In this specification, unless otherwise specified, "front", "rear", "left", and "right" of the tower crane refer to " Front", "rear", "left", "right", that is, "front" refers to the side the driver is facing.

Referring to Figs. 1-3, the tower crane for teaching and training of the present invention comprises a balance arm 2, a revolving tower body 3, a driver's cab 4, a boom 6, a tower body 10 and an underframe 11.

The boom 6 is fixedly installed on the front side of the slewing tower body 3, the balance arm 2 is fixedly installed on the rear side of the slewing tower body 3, and the rear part of the balance arm 2 is provided with a lifting mechanism. 1. The boom 6 is provided with a luffing mechanism 5 . The slewing tower body 3 is a triangular structure.

The slewing tower body 3 is connected to the tower body 10 through a slewing mechanism, and the slewing mechanism includes an upper support 7 , a slewing support 8 and a lower support 9 sequentially connected from top to bottom. The structure of the slewing mechanism can adopt the structural form of the slewing mechanism in the existing tower crane, that is, the connection mode of the upper support 7, the slewing support 8 and the lower support 9 can adopt the structure of the existing tower crane. Connection mode, the rotary drive mechanism can be installed on the upper support 7. The upper support 7 is fixedly connected with the revolving tower body 3 , and the lower support 9 is fixedly connected with the upper end of the tower body 10 . The slewing drive mechanism of the slewing mechanism is VVVF stepless speed regulation, with stable operation, fast and convenient positioning, high efficiency, and low maintenance costs.

The upper support 7 and the revolving tower body 3 are fixedly connected together to form an integrated structure, so the balance arm 2 can be directly fixedly connected with the revolving tower body 3 or fixedly connected with the upper support 7 , and connected to the slewing tower body 3 through a pull rod. Similarly, the boom 6 can be directly fixedly connected to the slewing tower body 3 , or its lower end can be fixedly connected to the upper support 7 , and its upper end can be fixedly connected to the slewing tower body 3 . The boom 6 can adopt a triangular cross-section structure.

The lower end of the tower body 10 is fixedly installed on the base frame 11 . Described underframe 10 can adopt cross beam underframe, and it is placed on the ground, and underframe 11 is placed with weight block 12, helps to keep complete machine stable. Several diagonal bracing rods 13 may also be arranged between the tower body 10 and the base frame 11 to maintain stability. The tower body 10 has a fixed installation height without a climbing and adding section system.

Both sides of described balance arm 2 are respectively provided with left side walk platform 21 and right side walk platform 22, and trainee can approach lifting mechanism 1 on left side walk platform 21 and right side walk platform 22, observes and learns lifting mechanism 1 structure and operation. The left side of the boom 6 is provided with a boom walking platform 61, and the boom walking platform 61 communicates with the left walking platform 21, and trainees can walk on the left side walking platform 21 and the boom walking platform 61. pass. The length of the boom platform 61 may extend forward from the slewing tower body 3 to the position of the luffing mechanism 5, or may be appropriately extended as required. Trainees can easily observe the structure and operation of the luffing mechanism on the boom walking platform 61 . When the lifting trolley is in the state of small amplitude, the trainees can understand the structural characteristics of the lifting trolley and the protection principle of the broken rope protection mechanism on the boom walking platform 61 . The right walking platform 22 communicates with the driver's cab 4, and the driver's cab 4 can be entered by the balance arm right walking platform 22. The surface height of the left side walking platform 21, the right side walking platform 22 and the boom walking platform 61 is consistent with the ground height of the driver's cab 4, which is convenient for personnel to walk around. Said boom walking platform 61 is provided with a passage opening 14, and a dodge door is installed on the passage opening 14. When no personnel passes through, the dodging gate is closed and the walking platform function is resumed. When a person climbs up from the ladder, the dodge door is opened, and the person can pass through the passage opening 14 . The outside of the tower body 10 is provided with a ladder for people to go up and down the tower crane.

Guardrails 211, 221, 611 are respectively provided on the sides of the left walking platform 21, the right walking platform 22 and the boom walking platform 61 to protect the safety of trainees.

The driver's cab 4 is fixed on the right side of the slewing tower body 3, as shown in Figures 3 and 4, it can be fixedly connected with the upper support 7, can also be fixedly connected with the slewing tower body 3, or can be connected with the slewing tower body 3 at the same time. The above-mentioned support 7 is fixedly connected with the revolving tower body 3 . The driver's seat 41 and the trainer's seat 42 are arranged in the driver's cab 4, and the trainer's seat 42 is placed on the right side of the driver's seat 41. After taking a seat, the trainer, driver (student) It can have a similar field of vision, which is convenient for the trainer to guide the operation. The trainer can sit next to the students to guide the teaching. When the students make mistakes in the operation, the trainer can correct them at any time. The left side of the driver's seat 41 is provided with a console 43 operated by the driver, and a linkage operation console 44 is provided between the driver's seat 41 and the trainer's seat 42. Emergency stop button is arranged, runs into an emergency, and the coach can operate the emergency stop button on its left hand position linkage operation platform 44, stop operation.

In order to facilitate safety monitoring, video evaluation backtracking and dispute handling, the teaching and training tower crane of the present invention can also be equipped with safety monitoring and video monitoring systems. The camera can also be arranged in other places as required. The signal collected by the camera is transmitted to the monitoring center through remote communication, which automatically records the students' practical training and examination conditions, and at the same time monitors whether the students have violated the rules in the practical training and whether there is fraud in the practical examination process, etc., so as to ensure that tower crane students The practical assessment is objective and fair.

The tower crane used for teaching, examination and training of the utility model has a structure without a horizontal arm on the top of the tower, the lifting arm is a triangular section, and the balance arm is a plane frame. The tower crane uses a weighted cross-beam underframe with diagonal braces. The overall weight of the tower crane is light, and it is easy to install on a teaching site that is easy to handle. The installation of the whole machine does not require a foundation, and the motor power used by the tower crane is relatively small , so the cost of use is lower. The tower crane has a fixed installation height, no climbing joint system, no balance weight, and can be installed on the unhardened ground. The overall cost of the tower crane is low, and the cost of installation and moving is lower than that of ordinary tower cranes.

The above specific implementations are only exemplary implementations of the utility model, and cannot be used to limit the utility model, and the protection scope of the utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the spirit and protection scope of the present invention, and these modifications or equivalent replacements should also be deemed to fall within the protection scope of the present invention.

Claims (10)

1. A tower crane for teaching and training, characterized in that it comprises a balance arm, a lifting arm, a slewing tower body, a driver's cab, a tower body and an underframe, The lifting arm is fixedly installed on the front side of the slewing tower body, and the balance arm is fixedly installed on the rear side of the slewing tower body; The slewing tower body is connected with the tower body through a slewing mechanism, and the slewing mechanism includes an upper support, a slewing support and a lower support sequentially connected from top to bottom, and the slewing tower body is fixedly connected to the upper support. On the support, the lower support is fixedly connected to the upper end of the tower body; The lower end of the tower body is fixedly mounted on the underframe; The cab is fixed on the right side of the slewing tower body. 2. The tower crane for teaching and training according to claim 1, wherein a left walking platform and a right walking platform are respectively arranged on both sides of the balance arm, and a left walking platform and a right walking platform are arranged on the left side of the boom. The boom walking platform is connected with the left walking platform. 3 . The tower crane for teaching and training according to claim 2 , wherein the right walking platform communicates with the driver's cab. 4 . 4. The tower crane for teaching and training according to claim 2, characterized in that guardrails are provided on the sides of the left walking platform, the right walking platform and the boom walking platform respectively. 5 . The tower crane for teaching and training according to claim 2 , wherein a passage opening is provided on the walking platform of the boom, and a movable door is installed on the passage opening. 6 . 6. The tower crane for teaching and training according to claim 1, wherein a driver's seat and a trainer's seat are arranged in the cab. 7. The tower crane for teaching and training according to claim 6, characterized in that, a linkage operating platform is provided between the driver's seat and the trainer's seat, and an emergency stop is provided on the linkage operating platform. button. 8. The tower crane for teaching and training according to claim 1, wherein the slewing tower body is triangular in shape. 9. The tower crane for teaching and training according to claim 1, characterized in that a ladder is provided outside the tower body. 10 . The tower crane for teaching and training according to claim 1 , wherein a ballast is placed on the underframe. 11 .