Weight compensation device on underframe of elevator carriage

Abstract

The invention discloses a weight compensation device on an underframe of an elevator carriage. Multiple balance weight blocks are arranged in a box body, the box body is matched with a connecting plate to clamp the underframe of the carriage, and the box body provided with multiple balance weight blocks is connected and fixed on the underfame of the carriage, thus the weight of the carriage can be compensated, the forward-backward gravity of the carriage is balanced, and abrasion of a guide shoe to the carriage is reduced, the balance weight blocks in an inner cavity can be increased or decreased by virtue of an opening of the box body, and the box body is matched with a connecting block to clamp the underframe of the carriage and be separated from the underframe of the carriage, thus the box bodies can be increased or decreased on the underframe of the carriage, the compensation range on the weight of the carriage is wider, and the forward-backward gravity of the carriage can be better balanced. The box body is fixed on the underframe by the way that the box body is matched with the connecting plate to clamp the underframe of the carriage, thus the box body can be conveniently mounted and fixed no matter the underframe of the carriage adopts a steel tube with a C-shaped cross section or the steel tube with a rectangular cross section, namely the balance weight blocks are mounted and fixed on the underframe of the carriage.

Description

[0001] technical field [0002] The invention relates to a weight compensating device on an elevator car bottom frame. Background technique [0003] On the elevator, the existing car bottom frame 1' usually adopts a steel pipe with a C-shaped cross section, such as figure 1 As shown, the existing weight compensating device includes a balance iron 2' with a groove on the side, the car bottom frame 1' is inserted in the groove, and the C-shaped opening 3' faces outward, as figure 1 and 2 As shown, there are perforations on the corresponding parts of the balance iron 2' and the car underframe 1', and bolts 4' pass through the holes. The C-shaped opening 3' of 'can screw the nut 5' on the threaded body of the bolt 4' passing through the car bottom frame 1', and the bolt 4' and the nut 5' are hidden in the steel pipe of the car bottom frame 1'. The balance iron 2' is fixed on the car bottom frame 1', and the balance iron 2' acts as a counterweight. The weight of the car is c...

AI Technical Summary

Problems solved by technology

[0003] On the elevator, the existing car bottom frame 1' usually adopts a steel pipe with a C-shaped cross section, such as figure 1 As shown, the existing weight compensating device includes a balance iron 2' with a groove on the side, the car bottom frame 1' is inserted in the groove, and the C-shaped opening 3' faces outward, as figure 1 and 2 As shown, there are perforations on the corresponding parts of the balance iron 2' and the car underframe 1', and bolts 4' pass through the holes. The C-shaped opening 3' of 'can screw the nut 5' on the threaded body of the bolt 4' passing through the car bottom frame 1', and the bolt 4' and the nut 5' are hidden in the steel pipe of the car bottom frame 1'. The balance iron 2' is fixed on the car bottom frame 1', and the balance iron 2' acts as a counterweight. The weight of the car is compensated by increasing or decreasing the number of the balance iron 2', so as to balance the center of gravity of the car and reduce the weight of the car. However, the range of compensation for the weight of the car through the balance iron is limited, and if the car bottom frame adopts a steel pipe with a rectangular cross section, the above method cannot be applied to the installation and fixation of the balance iron or the counterweight

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