CN2780994Y

CN2780994Y - Safety protective door for vertical shaft wellhole

Info

Publication number: CN2780994Y
Application number: CN 200520080846
Authority: CN
Inventors: 杨守荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-07
Filing date: 2005-03-07
Publication date: 2006-05-17
Anticipated expiration: 2015-03-07

Abstract

The utility model relates to a safety protective door for a vertical shaft pitshaft. A slideway fixed with a support beam in the pitshaft is arranged, wherein one end of the slideway is fixed at a hydromotor, a power output shaft of the hydromotor is fixed with a drive sprocket, a driven sprocket is fixed by using a bracket at the other end of the slideway beyond the position of a middle part and a chain is hung between the drive sprocket and the driven sprocket. At least two hanging arms of a certain distance are fixedly isolated at the upper end of a preventive door body, the upper end of each of the hanging arms is hung on the slideway through a pulley, the chain is fixed with a chain card which is connected with one hanging arm on every preventive door body and is positioned at the lower end of the preventive door body under the state of closing the preventive door body and both sides are respectively provided with guide frames. The safety protective door for a vertical shaft pitshaft has the advantages of compact structure, less occupied space and convenient technology disposal, the rotary motion of a motor and a sprocket are transmitted through the chain to realize the rectilinear motion of the door and the motion position of the door is convenient to control. Through matching with a hydraulic electromagnetic valve and a sensor switch, the linkage and locking of the door and other devices can be realized effectively, maintenance workload is small and installation is convenient.

Description

The shaft of vertical well safety protective door

Technical field:

The utility model relates to a kind of protective door that is used for mine vertical shaft well head, downhole safety, prevent that mine car, pedestrian, object crash into pit shaft in ground or the parking lot, down-hole, especially cooperatively interact with special equipments such as car puller, cage chair, the stopping means of holding up traffic, cages, make mine well head, shaft station reach the purpose of behaviour's car mechanization of operation and automation.

Background technology:

The safety door that use in existing well head, shaft bottom, have manually, forms such as cylinder promotion, cylinder pushes, its motion all is a horizontal rectilinear motion of realizing safety door by the rectilinear motion of cylinder or oil cylinder, thereby reach purpose with well head, the pit shaft passage sealing of place, shaft station, there is following shortcoming in they: the safety door operation is not steady, when particularly cylinder or oil cylinder were vertically installed, the movement position of safety door was difficult to control, can not realize the effective locking with other link gear; When the oil cylinder level was installed, stroke was long, and size is bigger, and the cost height is installed and adjusted inconvenience; When long material need unload slideway down, trouble and time-consuming.

Summary of the invention:

The purpose of this utility model provides a kind of shaft of vertical well safety protective door, operates steadily, and locating locking is reliable, installation, convenient disassembly.

The purpose of this utility model realizes as follows: this shaft of vertical well safety protective door relates to the protective door body, other be provided with one with pit shaft in the fixing slideway of brace summer, slideway is detachable, with convenient long material down.At an end fixed hydraulic motor of slideway, fixing drive sprocket on the power output shaft of hydraulic motor, the other end that surpasses medium position at slideway hangs with chain with the fixing driven sprocket of support between drive sprocket and driven sprocket; At fixing at least two arms spaced apart in the upper end of protective door body, the arm upper end is hung on the slideway by pulley, fixing chain card on chain, the chain card is connected with one of them arm on the protective door body, is positioned at the leading truck that the both sides, lower end of protective door body have the protective door body to insert respectively under the protective door body is closed the door state.

This protective door can be the situation of single door body, also can be applicable to the situation that single lifting appliance and two lifting appliances are arranged in the pit shaft respectively for the situation of two fan protective door bodies is arranged.When needing two fan protective door bodies, two body front and back positions stagger, and the Power Drive Unit of corresponding hydraulic motor, drive sprocket, driven sprocket and chain formation is arranged with respect to each protective door body.

During work, hydraulic motor drives the drive sprocket rotation, by chain, the moving arm of chain cassette tape, makes its pulley along doing rectilinear motion on the slideway, and drives the door body by arm and move simultaneously.When the door body arrived the locked position of coupler of regulation, leading truck was inserted with door body location in door both sides, body lower end, realized the sealing protection to well head, place, parking lot, down-hole pit shaft passage.

This pit shaft safety protective door compact conformation, it is little to take up room, and technology arrangement is convenient; Rotatablely moving of motor, sprocket wheel realized the rectilinear motion of door by chain, be convenient to the movement position of control gate; Cooperate the interlock that can effectively realize door and other device with hydraulic buttery valve, sensing switch, locking; Maintenance workload is little, and is easy for installation.

Description of drawings:

Accompanying drawing is the structural representation of the utility model shaft of vertical well safety protective door.

The specific embodiment:

With reference to accompanying drawing, the figure illustrates by the structure of two fan protective door bodies and form situation, mainly form by slideway 1, drive sprocket 2, pulley 3, chain card 4, driven sprocket 5, hydraulic motor 6, chain 7, arm 8, protective door body 9, leading truck 10.Protective door body 9 is generally paling form steel welded construction, brace summer is fixed in slideway 1 and the pit shaft, end fixed hydraulic motor 6 at slideway 1, fixing drive sprocket 2 on the power output shaft of hydraulic motor 6, the other end that surpasses medium position at slideway 1 is with the fixing driven sprocket 5 of support, hang with chain 7 between drive sprocket 2 and driven sprocket 5, it is to make the distance between itself and the drive sprocket 2 can satisfy the stroke that chain 7 drives between protective door body 9 closures and the enable possition that so-called driven sprocket 5 is arranged in above slideway 1 medium position; At fixing two arms 8 spaced apart in the upper end of each protective door body 9, arm 8 upper ends are hung on the slideway 1 by pulley 3, thereby make protective door body 9 be suspended state, fixing chain card 4 on chain 7, chain card 4 is connected with one of them arm 8 on every fan protective door body 9, under closing the door state, protective door body 9 is positioned at the leading truck 10 that the both sides, lower end of protective door body 9 have protective door body 9 to insert respectively, the rigidity locking when realizing protective door body 9 closed conditions.The Power Drive Unit that has corresponding hydraulic motor 6, drive sprocket 2, driven sprocket 5 and chain 7 to constitute with respect to each protective door body 9, two groups of Power Drive Units also can shared hydraulic motors 6 and be implemented in two groups of power conversion between the Power Drive Unit by clutch.

Claims

1, a kind of shaft of vertical well safety protective door, relate to the protective door body, it is characterized in that: be provided with one with pit shaft in the fixing slideway (1) of brace summer, end fixed hydraulic motor (6) at slideway (1), fixing drive sprocket (2) on the power output shaft of hydraulic motor (6), the other end that surpasses medium position at slideway (1) hangs with chain (7) with the fixing driven sprocket (5) of support between drive sprocket (2) and driven sprocket (5); At fixing at least two arms (8) spaced apart in the upper end of protective door body (9), arm (8) upper end is hung on the slideway (1) by pulley (3), go up fixedly chain card (4) at chain (7), chain card (4) is connected with one of them arm (8) on the protective door body (9), is positioned at the leading truck (10) that the both sides, lower end of protective door body (9) have protective door body (9) to insert respectively under protective door body (9) is closed the door state.

2, shaft of vertical well safety protective door according to claim 1, it is characterized in that: have two fan protective door body (9) front and back positions to stagger, the Power Drive Unit of corresponding hydraulic motor (6), drive sprocket (2), driven sprocket (5) and chain (7) formation is arranged with respect to each protective door body.