CN-224226553-U - Speed measuring device for tail of elevator

Abstract

The utility model provides a speed measuring device for a tail of a hoist, which comprises a hoist shell, a tail wheel shaft of the hoist and a steel wire rope, wherein a bearing seat and a hollow shaft are arranged outside the hoist shell, a base is arranged on the tail wheel shaft of the hoist, one end of the steel wire rope is fixed on the base, the other end of the steel wire rope is fixed on the hollow shaft, and a limiting piece is welded on the hollow shaft. The utility model mainly utilizes the steel wire rope to transfer the torque of the tail wheel of the elevator, compensates the activity of the tail wheel of the elevator in the up-down operation and the axial operation, buffers the vibration generated by the bearing seat, leads the torque generated by the tail wheel of the elevator to the outside of the elevator shell, and can acquire stable pulse signals by the speed switch, thereby facilitating inspection and improving the reliability of equipment.

Inventors

• ZHANG FEI

Assignees

• 冀东海德堡(泾阳)水泥有限公司

Dates

Publication Date

20260512

Application Date

20250611

Claims (3)

1. 1. The utility model provides a speed sensor of lifting machine tail, its characterized in that, including lifting machine casing (1), lifting machine tail shaft (2), wire rope (5), lifting machine casing (1) externally mounted has bearing frame (3) and hollow shaft (4), be provided with base (6) on lifting machine tail shaft (2), wire rope (5) one end is fixed on base (6), and the other end is fixed on hollow shaft (4), still weld spacing piece (7) on hollow shaft (4).
2. 2. The speed measuring device for the tail of the elevator according to claim 1, wherein a speed switch (8) is further arranged outside the elevator shell (1).
3. 3. The elevator tail speed measuring device according to claim 2, wherein the speed switch (8) is of the model SS2-220V-B-1.

Description

Speed measuring device for tail of elevator Technical Field The utility model relates to a speed measuring device for a tail of a lifter, in particular to a speed measuring device for a tail of a lifter for lifting materials in cement production. Background In cement production, the speed measurement of the tail of a lifter for lifting materials mainly depends on a speed switch arranged in the lifter, and is realized by collecting pulse signals generated when the tail shaft of the lifter rotates. However, the tail wheel of the elevator can generate up-and-down movement and axial movement in the operation process, so that a speed switch is difficult to accurately sense signals, the speed switch is arranged in the elevator and is extremely easy to be impacted by granular materials, the switch and a circuit are frequently damaged, so that the elevator cannot work normally, the tail of the elevator is always maintained at high frequency or forced to be unlocked for operation, and forced interlocking causes equipment failure shutdown for a plurality of times under the condition, and even causes the expansion of equipment accidents. Disclosure of utility model Aiming at the problems, the utility model provides the speed measuring device for the tail of the elevator, which compensates various operations generated by a tail wheel shaft, eliminates vibration, transmits stable torque, ensures that a speed switch acquires stable signals, and can solve the bottleneck problem that the speed measuring device for the tail of the elevator cannot normally operate for a long time. In order to achieve the aim, the technical scheme includes that the speed measuring device for the tail of the elevator comprises an elevator shell, an elevator tail wheel shaft and a steel wire rope, wherein a bearing seat and a hollow shaft are arranged outside the elevator shell, a base is arranged on the elevator tail wheel shaft, one end of the steel wire rope is fixed on the base, the other end of the steel wire rope is fixed on the hollow shaft, and a limiting piece is welded on the hollow shaft. Further, a speed switch is further arranged outside the elevator shell. Further, the speed switch is of the model SS2-220V-B-1. Compared with the prior art, the utility model has the advantages that the torque of the tail wheel of the elevator is transmitted by the steel wire rope, the up-and-down running and axial running movement of the tail wheel of the elevator are compensated, the vibration generated by the bearing seat is buffered, the torque generated by the tail wheel of the elevator is led to the outer side of the elevator shell, the speed switch can acquire stable pulse signals, the inspection is convenient, and the reliability of equipment is improved. Drawings FIG. 1 is a schematic diagram of a speed measuring device for a tail of a hoist according to the present utility model; The elevator comprises an elevator shell-1, an elevator tail wheel shaft-2, a bearing seat-3, a hollow shaft-4, a steel wire rope-5, a base-6, a limiting piece-7 and a speed switch-8. Detailed Description The technical solutions of the embodiments of the present utility model will be clearly and completely described with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. As shown in fig. 1, the speed measuring device for the tail of the elevator comprises an elevator shell 1, an elevator tail wheel shaft 2 and a steel wire rope 5, wherein a bearing seat 3 and a hollow shaft 4 are arranged outside the elevator shell 1, a base 6 is arranged on the elevator tail wheel shaft 2, one end of the steel wire rope 5 is fixed on the base 6, the other end of the steel wire rope is fixed on the hollow shaft 4, and a limiting piece 7 is welded on the hollow shaft 4. The elevator is characterized in that a speed switch 8 is further arranged outside the elevator shell 1, wherein the speed switch 8 is of the model of SS2-220V-B-1, the operating principle is that the elevator is arranged beside a driven shaft, a detection piece (limit piece) is arranged on the driven shaft, when a motor operates, the driven shaft is driven to rotate through a transmission device, the detection piece (limit piece) rotates along with the motor, when equipment is subjected to clamping rotation, blocking rotation, belt slipping and driving belt falling failure, the driven shaft slowly rotates or stops rotating along with the equipment, the detection piece (limit piece) slowly rotates or stops rotating along with the equipment, the rotation detector cannot receive a uniform interval pulse signal of the detection piece, the rotation detector is turne