CN2312362Y - Friction type couple clutching members - Google Patents

Abstract

The utility model relates to a friction type coupling. In the utility model, a shaft sleeve is connected with a casing through a bolt; brake blocks are uniformly arranged at the circumference of drive shafts; the brake blocks are connected with the drive shafts by using pin shafts; a flame-retardant friction block is fixed by screws; a press wheel is connected with the brake blocks by using the pin shafts; hooks are fixed on the drive shafts of the end parts of brake blocks by using the pin shafts; arc-shaped pushing block assemblies are symmetrically fixed on the inner end face of the casing by using the bolt; arc-shaped pushing blocks swing following the rotation of the casing in a circumferential direction; bearings are arranged among the casing and the drive shafts which is connected with an elastic shaft coupling by keys; the brake blocks swings in the circumferential direction, and forms friction with the casing to transfer torque. The coupling with high transmission efficiency can realize overload protection and soft start of a motor.

Description

Friction coupler

The utility model relates to a kind of friction coupler, mainly is used in the mechanical transmission aspect of flight conveyer, belt conveyor, water pump, blower fan, disintegrator, the coaxial connection between motor and the speed reducer, belongs to the technical field of coupler.

In the mechanism driving such as existing flight conveyer, belt conveyor, water pump, blower fan, motor is that structure is disliked complexity slightly with all using fluid coupling, major defect being connected of retarder, and transmission efficiency is lower and energy consumption is big slightly, the working service workload is big, demands urgently improving.

This practicality is that a kind of friction coupler will be provided with novel purpose; it can overcome above-mentioned shortcoming; it is simple in structure; the transmission efficiency height; driving torque can be regulated; can realize the motor soft start, overload protection is applicable to equipment such as flight conveyer, belt conveyor, blower fan, water pump, disintegrator, transloader.

The purpose of this utility model is achieved in that

A kind of friction coupler, its axle sleeve (1) is connected with bolt (25) with shell (2), (2 also use screw (26), nut (27) to consolidate driving shaft (4) with (3) is supported on the bearing (24) shell, there is seal ring (16) (17) bearing (24) both sides, and end cap (13) is fixed on the shell (3) with bolt (28); Pinch roller (5) is connected with brake shoe (18) with bearing pin (4), arc pushing block bearing (7) is fixed in the interior edge face of shell (2) (3) symmetrically with bolt (30), and be positioned at the top of pinch roller (5), centrifugal (8) are connected by key (9) and arc pushing block (6), complex spring (10) is sleeved on above the right-hand member of arc pushing block (6) spindle nose, and driving shaft (14) is connected with elastic coupling flexible coupling (12) by key (11);

Pinch roller (5) is connected with brake shoe (18) with bearing pin (4), brake shoe (18) is distributed in above the circumference of driving shaft (14), and be connected with driving shaft (14) with bearing pin (4), fire-retardant brake pad (19) is fixed in above the cylindrical of brake shoe (18) with screw (29), hook (20) is connected at place, brake shoe (18) end with driving shaft (14) with bearing pin (21), and Returnning spring (22) hangs between hook (20) and the bearing pin (23).

Fig. 1 friction coupler schematic representation;

Fig. 2 friction coupler A-A sectional view;

Fig. 3 friction coupler B-B sectional view; (pushing block 6 in running order schematic representation)

Fig. 4 friction coupler B-B sectional view.

Now in conjunction with the accompanying drawings the structure of friction coupler is described in detail:

By Fig. 1, axle sleeve (1) is connected with bolt (25) with shell (2), shell (2) and (3) also use screw (26), nut (27) affixed, driving shaft (4) is supported on the bearing (24), there is seal ring (16) (17) bearing (24) both sides, and end cap (13) is fixed on the shell (3) with bolt (28); Pinch roller (5) is connected with brake shoe (18) with bearing pin (4), pushing block bearing (7) is fixed in the interior edge face of shell (2) (3) symmetrically with bolt (30), and be positioned at the top of pinch roller (5), centrifugal (8) are connected by key (9) and arc pushing block (6), Returnning spring (10) is sleeved on above the right-hand member of arc pushing block (6) spindle nose, arc pushing block (6) can along the circumferential direction be swung with shell (3) rotation, enter the working position, driving shaft (14) is connected with elastic coupling flexible coupling (12) by key (11), driving shaft (14) bottom is welded with 2 floors, and is fixing with bearing pin (15).

By Fig. 2, pinch roller (5) is connected with brake shoe (18) with bearing pin (4), brake shoe (18) is distributed in above the circumference of driving shaft (14), and be connected with driving shaft (14) with bearing pin (4), fire-retardant brake pad (19) is fixed in above the cylindrical of brake shoe (18) with screw (29), hook (20) is connected at place, brake shoe (18) end with driving shaft (14) with bearing pin (21), and Returnning spring (22) hangs between hook (20) and the bearing pin (23).

By Fig. 1,2; coupler is to produce the relative friction with shell (3) of centrifugal force by driving shaft (14) rotation; and transmitting torque; the circumferencial direction swing enters the working position to arc pushing block (6) with shell (2) (3) rotation; after the moment of torsion overrate that transmits; arc pushing block (6) makes fire-retardant brake pad (19) break away from shell (3) by pinch roller (5) and contacts; hook (20) is locked in brake shoe (18) position of disengaging again in brake shoe (18) end simultaneously, plays the protective action of overload thus.

It is described by Fig. 3 that to be coupler enter the arc pushing block (6) of operation process and the relative position of pinch roller (5) finishing to start; when shell (2); shell (3) is subjected to fire-retardant brake pad friction driving and driving shaft (14) when rotating synchronously; arc pushing block (6) is subjected to centrifugal action to enter position shown in Figure 3 to await orders; in specified transmitting torque scope; arc pushing block (6) does not have relative slippage with brake shoe (18); coupler is in no slippage normal working; after the scope of transmitting torque overflow position; the shell rotating speed slows down; arc pushing block (6) produces relative movement with pinch roller (5); pinch roller (5) moves along arc pushing block (6) outer arcuate; fire-retardant brake pad (19) is broken away from and the contacting of shell (2); hook (20) pins brake shoe (18) at place, brake shoe (18) end simultaneously; cut off moment of torsion and transmit circuit; make driving shaft (14) idle running, play the overload protection motor.

Fig. 4 is described to be after the shell of coupler stops operating, the relative position of arc pushing block (6) and pinch roller (5).After the coupler shell stopped operating, arc pushing block (6) spurred the position that automatically restores to Fig. 4 by Returnning spring (10), and arc pushing block (6) and roller (5) are disengaged; Driving shaft (14) can freely dally, to guarantee that coupler normally starts and stops.

Compared with prior art, friction coupler has following advantages:

1, simple in structure, operation and maintenance is easy;

2, transmission efficiency is higher, and energy consumption is low;

3, transmitting torque can be regulated;

4, realize motor soft start and overload protection;

5, be applicable to that equipment such as scraper conveyor, belt conveyor, water pump, blower fan, disintegrator, transloader use.

Claims (1)

1, a kind of friction coupler, it is characterized in that axle sleeve (1) is connected with bolt (25) with shell (2), (2 also use screw (26), nut (27) to consolidate driving shaft (4) with (3) is supported on the bearing (24) shell, there is seal ring (16) (17) bearing (24) both sides, and end cap (13) is fixed on the shell (3) with bolt (28); Pinch roller (5) is connected with brake shoe (18) with bearing pin (4), arc pushing block bearing (7) is fixed in the interior edge face of shell (2) (3) symmetrically with bolt (30), and be positioned at the top of pinch roller (5), centrifugal (8) are connected by key (9) and arc pushing block (6), Returnning spring (10) is sleeved on above the right-hand member of arc pushing block (6) spindle nose, and driving shaft (14) is connected with elastic coupling flexible coupling (12) by key (11);

Pinch roller (5) is connected with brake shoe (18) with bearing pin (4), brake shoe (18) is distributed in above the circumference of driving shaft (14), and be connected with driving shaft (14) with bearing pin (4), fire-retardant brake pad (19) is fixed in above the cylindrical of brake shoe (18) with screw (29), hook (20) is connected at place, brake shoe (18) end with driving shaft (14) with bearing pin (21), and Returnning spring (22) hangs between hook (20) and the bearing pin (23).

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