Truss tower and spanning construction protection equipment comprising same

Abstract

The invention discloses a truss tower. The truss tower comprises a base frame. The top and the bottom of the base frame are provided with a first connecting part and a second connecting part correspondingly. The front portion of the base frame is provided with a front truss part, and the rear portion of the base frame is provided with a rear truss part. The front truss part is located on the lowerportion of the base frame. The rear truss part is located on the upper portion of the base frame. The truss tower provided by the invention can be used in most of service environments at present without additionally arrangement of counter weights. The truss tower is simple and practical in structure and easy to manufacture and use. The invention further provides spanning construction protection equipment. The spanning construction protection equipment comprises a base and a main frame body. The main frame body comprises a main tower, a cross beam and an auxiliary tower which are pivoted together in sequence. The main tower is the above truss tower. The main tower is pivoted to the base through the lower connecting part at the bottom of the main tower. The cross beam is pivoted to the upper connecting part of the top of the main tower and located on the front side of the main tower. When the spanning construction protection equipment is in use, there is no need to additionally arrangethe counter weights. The spanning construction protection equipment is simple and reliable in structure and easy to manufacture and use.

Description

Technical field [0001] The invention relates to a truss tower and a protection equipment for spanning construction. Background technique [0002] The truss structure has excellent bending and shear resistance, and is widely used in housing engineering, bridge engineering, cranes and other engineering equipment. In engineering equipment such as cranes, truss towers are often used as the main tower, which usually adopts a standard column truss structure. The rear end of the main tower is usually installed on the base, and the top end is installed with a beam extending to the front of the main tower. The beams and corresponding operating devices are usually installed at the front end of the main tower. For large-scale engineering equipment, the beams and operating devices themselves are heavy, and they are also suspended during the operation. The gravity of objects or the reaction force of pulling objects, etc., will cause the main tower to receive large lateral forces and moments,...

AI Technical Summary

Problems solved by technology

In engineering equipment such as cranes, truss towers are often used as the main tower, which usually adopts a standard column truss structure. The rear end of the bottom of the main tower is usually installed on the base, and the top is installed with beams extending to the front of the main tower Such as the beam body and the corresponding operating devices, and these beams are usually installed at the front end of the main tower. For large-scale engineering equipment, the weight of the beam body and the operating device itself is relatively large, and they will be additionally suspended during the operation. The gravity of objects, etc. or the reaction force of pulling objects, etc., will cause the main tower to be subject to large lateral forces and moments, making the main tower prone to bending or causing engineering equipment to fall. For this reason, existing engineering equipment of this type Among them, it is often necessary to install an additional counterweight structure on the opposite side of the beam on the main tower to balance the force of the main tower to a certain extent, which is more complicated and inconvenient to use.

[0003] Crossing construction protective equipment has a wide range of uses in engineering operations. For example, when constructing electrical equipment above trains, roads, etc., crossing construction protective equipment can be used to straddle trains, roads, etc. to provide work platforms or As a protection, to avoid the impact on the passage of trains, roads, etc., when performing engineering operations in complex terrain, rivers, etc., cross-construction protection equipment can also be used to cross the terrain. These cross-construction protection equipment or similar engineering equipment usually include a base And the main frame body arranged on the base, the main frame body usually includes the main tower, the beam and the auxiliary tower, the length and weight of the beam and the auxiliary tower are relatively large, and the main tower will be greatly affected during the process of unfolding and collapsing. The lateral force and moment, while the main tower of the existing spanning construction protection equipment often adopts a standard column truss structure, so it needs to be made of high-strength materials to improve the bending and shear performance of the main tower, or it needs to In addition, adding weights, etc. will increase the equipment cost and equipment volume, and the operation is more complicated and inconvenient.

Images