Foldable rail-mounted crane stop device

Patent metadata

Field	Value
Publication number	US-12110216-B2
Application number	US-202117368801-A
Country	US
Kind code	B2
Filing date	Jul 6, 2021
Priority date	Jul 23, 2020
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

A foldable rail-mounted crane stop device includes an actuating device, a slidably fixing device and a braking device. The actuating device is mounted on a crane rail for bearing the pressure of a crane wheel and thereby actuating the braking device, the slidably fixing device is mounted at an end of the crane rail, and the braking device is connected with the slidably fixing device for braking the crane wheel. The device provided by the present invention is used for crane braking at the end of a rail.

First claim

What is claimed is:

1. A foldable rail-mounted crane stop device, comprising an actuating device, a slidably fixing device and a braking device, wherein the actuating device is mounted on a crane rail for bearing a pressure of a crane wheel and actuating the braking device, the slidably fixing device is mounted at one end of the crane rail, and the braking device is connected to the slidably fixing device for braking the crane wheel;
wherein the slidably fixing device comprises a sliding track mounted at an end of the crane rail, two sides of the sliding track are respectively provided with sliding grooves, each of the sliding grooves is provided with a first sliding block and a second sliding block therein, and the first sliding block and the second sliding block are respectively connected to an end of the sliding track via a first sliding spring and a second sliding spring;
wherein the braking device comprises two front stop rods, side walls of each front stop rod are provided with braking grooves, a braking block which is slidable in the braking groove is mounted in each braking groove, and the braking block is connected to an end of the braking groove via a braking spring; an end of each front stop rod near the actuating device is provided with a wedge-shaped opening for seizing a pressed plate of the actuating device, and an end of each front stop rod near the slidably fixing device is connected to the first sliding block via a rotating shaft; the braking block is connected to one end of a rear support rod through the rotating shaft, another end of the rear support rod is connected to the second sliding block via the rotating shaft, a stop plate is connected between the two front stop rods, and a damping plate is adhered to a side of the stop plate near the crane wheel.

2. The foldable rail-mounted crane stop device according to claim 1 , wherein the actuating device comprises a stabilizing plate mounted on the crane rail, the pressed plate is mounted on the stabilizing plate via an actuating spring, and a top portion of the pressed plate is higher than a bottom edge of the crane wheel in a non-braking state.

3. The foldable rail-mounted crane stop device according to claim 1 , wherein the sliding track consists of two pieces of L-shaped steel, which are fixed to two sides of the end of the crane rail by bolts.

4. The foldable rail-mounted crane stop device according to claim 1 , wherein only one actuating device is provided or two actuating devices are provided on two sides of the crane rail, depending on model of a crane.

Assignees

• Univ Southeast

Inventors

• Jin Hui
• Jiao Haihan
• Ding Keqin
• Wang Libin

Classifications

• B66C7/16 Primary

  Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops (buffer-stops of interest apart from this application B61K7/18; limit-switch arrangements, limit circuits B66D1/56) · CPC title

• B61K7/04

  with clamping action · CPC title

• B66C9/18 Primary

  with means for locking trolleys or cranes to runways or tracks to prevent inadvertent movements · CPC title

• B61K7/20 Primary

  Positive wheel stops · CPC title