Combined type car lifting auxiliary tool and car descending method based on tool

Abstract

The invention provides a combined type car lifting auxiliary tool and a car descending method based on the tool and belongs to the field of car descending coupling auxiliary devices of low-floor tramcars and car descending methods using the devices. The tool comprises a bottom frame auxiliary crossbeam used for a car lifting jack and a cab first-position end auxiliary lifting trolley. The cab first-position end auxiliary lifting trolley comprises two lifting trolley wheel set mechanisms and a steel channel crossbeam. Each lifting trolley wheel set mechanism comprises a rectangular wheel set installation frame and two transport rail wheels. By the adoption of the combined type car lifting auxiliary tool, the site for conducting the manufacturing procedure of compartments can be transferredat any time according to requirements, continuous production is achieved, and therefore production efficiency is improved. The bottom frame auxiliary crossbeam used for the car lifting jack can further be directly matched with an existing car lifting jack corbel, so that it is guaranteed that lifting and descending operation conducted on all the compartments is safe, efficient, smooth and reliable, the rework number of times is reduced, balance of a tramcar is guaranteed, the work rhythm is optimized, and occupation of crown block resources is reduced.

Description

technical field [0001] The invention belongs to the field of an auxiliary device for alighting and hanging a low-floor tramcar and a method for alighting a tram using the device, and in particular relates to a combined auxiliary tool for racking and an alighting method based on the tool. Background technique [0002] The track base of a low-floor tram is usually embedded in a special standard track groove on the ground, and the top of the track tread is flush with the ground. The underframe of the car body is the skeletal steel structure under the floor of the car, which is usually connected to a bogie with axles. The bogie includes two types: a power frame with a drive motor and a non-power frame without a motor. The installation process of lifting the carriage with the underframe and then placing it on the corresponding bogie is called the drop-off operation. When getting off the car, it is necessary to use four elevating machines with a rectangular layout and the ground...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that the undercarriage beams of the driver's cab compartment A, the suspension compartment B and the trailer compartment C of the new electric car with suspension compartments cannot cooperate with the side braces of the old process bogies in the assembly workshop, so the old ones cannot be used. However, due to the limited number of cranes, and each set of cranes can only complete the lifting and unloading operation of one carriage, it is impossible to use a set of cranes to complete the lifting and unloading operations at the same time. The driver’s cab compartment A, the suspended compartment B and the trailer compartment C of the new electric car with a suspended carriage realize horizontal synchronous lifting and landing; at the same time, the power frame of the driver’s cab carriage A of the new tram with a suspended carriage is arranged in The two-position end of the compartment causes the one-position end of the compartment where the front of the cab where the driver’s station is located is prone to deflection due to gravity when getting off the vehicle, which in turn makes the two-position end of the compartment tilt up and affects the suspension The docking of the chassis of the cab and the chassis of the cab; and the method of using a conventional forklift to raise one side of the cab A is still unable to move the cab A along the standard gauge of its own assembly workshop. The track moves, so it still can’t meet the gap adjustment requirements of the carriage coupling group; and the use of the crane to lift the carriage not only wastes the resources of the crane, but also causes the car body to fall and shake unstable, which may easily lead to falling. The car is unstable, the force of the secondary springs on both sides of the bogie is not synchronized with the docking of the car chassis, the adjustment is time-consuming and laborious, and the technical problem is low efficiency. car method

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