CN2335942Y

CN2335942Y - Direct connection double controlled limiter

Info

Publication number: CN2335942Y
Application number: CN 97229377
Authority: CN
Inventors: 周守林
Original assignee: Individual
Current assignee: Zhou Shoulin
Priority date: 1997-10-16
Filing date: 1997-10-16
Publication date: 1999-09-01
Anticipated expiration: 2007-10-16

Abstract

The utility model relates to a caging device, particularly a direct connection double controlled limiter adequate for hoists, lifters and cranes. The utility model comprises a box cover, a base, a turbine case, a turbine, a scroll bar, a turbine shaft, an inching switch, a trimming gear, a trimming inter sleeve, a trimming outer sleeve, a connecting socket and a control circuit. The utility model is characterized in that the scroll bar is provided with a connecting shaft head and is connected with the main shaft of a crane. The turbine and the turbine shaft are driven by the scroll bar to rotate the ring gear which is provided with a boss. When the boss clashes the contact point on the inching switch, power is cut off, and the purpose of spacing is achieved. The utility model can be widely used in lifting equipment.

Description

Direct-connected two control limiting device

The utility model relates to a kind of inhibiting device, especially a kind of direct-connected two control limiting devices that are applicable on elevator, lifting, the hoisting crane.

Existing weight-lifting equipment limiting device, weight-lifting equipments such as building ground well cabinet frame, portal frame particularly, limiting device is installed in the steel tower top, the spacing control cable of certain-length is introduced in the winch control box, and limiting device is installed aerial, and maintenance and replacing are not too convenient, damage can not in time be found, easily produce roof fall accident, lower limit is not often adorned inhibiting device, causes winch cylinder disorder cable easily yet.Electric block in factory's driving uses slide block, drives limiting device, its complex structure, and electric block pull bar oil starvation or long-term use rear slider are ineffective, and be spacing inoperative, can cause the accident.

The utility model purpose provides a kind of direct-connected two control limiting devices, when using in elevator, crane lifting equipment, can the upper control limit position, and again can the lower control limit position.

In order to achieve the above object, the utility model design turbine, turbo-shaft, bar, fine setting gear, inching switch, turbine case, limiting device lid, base and control path, its concrete structure is: turbine and scroll bar are meshing, scroll bar one end is for connecting spindle nose, connect the spindle nose epirelief and go out a connection spindle nose tenon, connect spindle nose and pass the limiting device outer casing base; Turbine is enclosed within on the turbo-shaft, and the heavy direct puncture of turbo-shaft is crossed the turbine case two ends, and is fixed on the turbine case, and turbine and turbine bar are in turbine case, and turbine case is fixed on the outer casing base; Inching switch is installed in the turbine case both sides, and a contact is arranged on it, and inching switch communicates with control path; Also have a cylindrical buzzer phone on the turbine case, then sound after the arrival institute extreme position; As required, cover in design internally toothed annulus, fine setting gear, fine-adjustment outer, the fine setting, their connection mode is: cover, overcoat all are enclosed within on the turbo-shaft in internally toothed annulus, the fine setting, the internally toothed annulus tooth coincide with the fine setting wheel tooth, on the internal tooth volume boss is arranged, it can contact with the inching switch upper contact, and internally toothed annulus is inner to match with the interior cover of fine setting, internally toothed annulus outer end and fine-adjustment outer match, and the fine setting gear is installed on the fine-adjustment outer.

The utility model also has a connecting seat, and its base is flat solid cylinder, and the thin cylinder of a fluting is arranged at its top, and the width of groove is identical with the thickness that connects the spindle nose tenon, and connection spindle nose tenon is inserted in the groove of this Connection Block, and Connection Block is fixed on the hoisting crane main shaft.

Cover, fine-adjustment outer have two in the utility model inching switch, fine setting gear, the fine setting, and symmetry is installed in turbine case two walls, and turbine case has an iron sheet cover plate on the top.

The utility model drives scroll bar work by the hoisting crane main shaft, the moving circle of scroll bar revolution, turbine rotation one tooth is after turbine rotation is counted tooth, internally toothed annulus convex platform percussion inching switch contact, cause power supply to disconnect, same, another inching switch contact of the reverse percussion of internally toothed annulus convex platform, power supply disconnects, this moment, buzzer phone was sounded, and control line is arranged on the inching switch, and control line and control circuit join.

The utility model advantage is that it is provided with multiple velocity ratio, can be applicable to the weight-lifting equipment of 5 to 95 meters height respectively, and after fine setting, spacing error is little, to last may command roof fall, under can prevent that fishhook lands, the reel disorder cable, the accident that prevents takes place.

Figure of description 1 is the utility model structural representation.Figure of description 2 is a connection diagram.Figure of description 1A-A generalized section.Figure of description 3 is a Figure of description 2A-A generalized section.Figure of description 4 is a Figure of description 3B-B generalized section.Figure of description 5 is the internally toothed annulus structural representation.Figure of description 6 is cover in fine-adjustment outer, the fine setting, fine setting gear matched structural representation.Figure of description 7 is the Connection Block scheme drawing.Figure of description 8 is the control circuit schematic diagram.

Number in the figure (1) is a lid, and (2) are base, and (3) are turbine case, and (4) are the turbine case cover plate, (5) be inching switch, (6) are the inching switch contact, and (7) are buzzer phone, (8) be turbo-shaft, (9) are Connection Block, and (10) are the hoisting crane main shaft, (11) be lead, (12) are turbine, and (13) are internally toothed annulus, (14) be that internally toothed annulus boss (15) is the fine setting gear, (16) are cover in the fine setting, and (17) are fine-adjustment outer, (18) be scroll bar, (19) for connecting spindle nose, (20) are for connecting tenon.

Concrete manufacturing process of the present utility model is: cover (16), fine-adjustment outer (17) in injection moulding lid (1), base (2), turbine case (3), inching switch (5), buzzer phone (6), internally toothed annulus (13), fine setting gear (15), the fine setting, processing turbo-shaft (8), turbine (12), scroll bar (18), turbine case cover plate (4).Scroll bar (18) and turbine (12) is meshing, turbo-shaft (8) is vertically passed turbine (12), scroll bar (18) is contained in turbine case (3) the inside with turbine (12), after passing turbine case (3), turbo-shaft (8) two ends fix on it, turbine case (3) is fixed on the base (2), two inching switch (5) are fixed on turbine case (3) both sides, and buzzer phone (7) is fixed on turbine case (3) front end, and there is lead (11) to pass, cover (16) is enclosed within earlier on the turbo-shaft (8) in will finely tuning, put internally toothed annulus (13) again, put fine-adjustment outer (17) again, to finely tune gear (15) is positioned in the hole of offering on the fine-adjustment outer (17), direct puncture is crossed cover (16) in internally toothed annulus (13) and the fine setting, and Connection Block (9) is fixed on the hoisting crane main shaft (10), and scroll bar (18) go up to connect that spindle nose tenon (20) passes in the groove that inserts Connection Block (9) behind base (2) hole and be fastening, inching switch (5) upper control line is linked to each other with control circuit, and lid (1) is fixed with screw and turbine case cover plate (4).

Claims

1. control limiting devices for one kind direct-connected pair, it comprises:

A: the driving device of forming by turbine (12), scroll bar (18), turbo-shaft (8), Connection Block (9), hoisting crane main shaft (10);

B: by the control apparatus of cover (16) formation in fine setting gear (15), fine-adjustment outer (17), the fine setting;

C: by the control setup of internally toothed annulus (13), inching switch (5), buzzer phone (7) and control path formation;

D: lid (1), base (2), turbine case (3), turbine case cover plate (4), lead (11);

It is characterized in that:

A: connection spindle nose (19) is arranged on the scroll bar (18), and connection spindle nose (19) upper end connects spindle nose tenon (20) for connecting spindle nose tenon (20), and connection spindle nose tenon (20) inserts Connection Block (9) and goes up in the groove, and Connection Block (9) is fastening with hoisting crane main shaft (10);

B: scroll bar (18) matches with turbine (12), and turbine (12) is enclosed within on the turbo-shaft (8), and turbo-shaft (8) two ends are fixed on turbine case (3);

C: cover (16), internally toothed annulus (13), fine-adjustment outer (17) are enclosed within on the turbo-shaft (8) in the fine setting, internally toothed annulus (13) inner end matches with the interior cover of fine setting (16), outer end and fine-adjustment outer (17) match, fine setting gear (15) is arranged on the fine-adjustment outer (17), and internally toothed annulus (13) is gone up internal tooth and is matched with fine setting gear (15) tooth;

D: internal tooth volume (13) is gone up internally toothed annulus plush copper (14) and can be contacted with inching switch (5) inching switch contact (6), and two inching switch (5) are separately positioned on turbine case (3) both sides, and inching switch (5) upper control line links to each other with control path.