CN2232034Y

CN2232034Y - Hoister with automatic brake

Info

Publication number: CN2232034Y
Application number: CN 95240092
Authority: CN
Inventors: 余蒋文; 龚荣波
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-07
Filing date: 1995-07-07
Publication date: 1996-07-31
Anticipated expiration: 2005-07-07

Abstract

The utility model relates to a hoister. A motor and a gear decelerating mechanism which are positioned inside a roller are connected through a shaft coupler, the outer end of the gear decelerating mechanism is rollingly connected with a pin frame. A starting drum is fixed on a support shaft is connected with a bearing stand, the main shaft of the motor can be led out outwardly to pass through a brake drum and a fulcrum shaft frame simultaneously to be connected with a tapered automatic brake, and both ends of the roller are respectively and rollingly connected with the support shaft and the outer end cover of the motor through bearings.

Description

The self-retention winch

The utility model relates to a kind of winch.

Though existing winch product category is many, with regard to its structure, all can not take off version, so all thicker heaviness of product is difficult to carrying with discrete combinations such as motor, drg, reduction gearing mechanism, coupler, reels.

The purpose of this utility model is exactly in order to address the above problem, provide a kind of volume little, in light weight, start steadily, braking failure-free self-retention winch.

Technical solution of the present utility model:

A kind of self-retention winch, it is by motor (1), gear reduction (2), cylinder (3) and base (4) thereof are formed, cylinder (3) one lateral edges are connected with brake wheel (5), base (4) two ends upwards are connected with a bearing frame (6) and a pedestal (7), it is characterized in that motor (1) and gear reduction (2) all are placed in cylinder (3) inside, the main shaft (8) of motor (1) links together by coupler (9) and gear reduction (2), roll and be connected with pin frame (10) in the outer end of gear reduction (2), the bolster (11) that this pin frame (10) outwards is connected with rolls with bearing frame (6) and is connected, be fixed with on the bolster (11) and start drum (12), the main shaft (8) of motor (1) is outwards drawn and pass brake wheel (5) and a pedestal (7) and by drag cone (13) simultaneously, brake disc (14), a left side, right half tooth embedding coupler (15), (16) the taper self-retention device of forming (17) connects, and rolls by bearing (18) and (19) respectively and be connected on the outer end cap of bolster (11) and motor (1) in cylinder (3) two ends.

The utility model is changed the version of the conventional discrete combined of tradition, and current collection machine, drg, reduction gearing mechanism, coupler, reel are in one, and it is whole that full machine is sealing, is convenient to realize electromechanical integration.The utility model adopts fewer differential teeth planetary formula gear reduction transmission device, and replaced traditional magnet stopper with tapered loading self-retention system device, and adopt the belt actuator to start, external contracting drum brake is controlled unloaded rolling, so the utlity model has the compact conformation novelty, handsome in appearance generous, volume is little, in light weight, starts steadily, braking is reliable, plurality of advantages such as the energy are saved in the two controls of torch, are the products of the winch renewal and renovation of equipment replacement.

Fig. 1 is a contour structures scheme drawing of the present utility model;

Fig. 2 is an inner structure scheme drawing of the present utility model.

As Fig. 1,2, a pedestal (7) is fixed on motor (1) outer end cap by body (20) in the utility model, and body (20) had both played supporting motor (1) and reel (3) here, plays a part to allow motor (1) main shaft (8) and lead-in wire pass again.The drag cone (13) of self-retention device (17) is fixed on the pedestal (7), brake disc (14) is located at drag cone (13) outer end one side, be provided with spring (21) between them, to be used for guaranteeing that glancing impact does not separate by them, the outer end of brake disc (14) and left half tooth embedding coupler (15) are fixed with one, the outer end of this coupler (15) is provided with right half tooth embedding coupler (16), and the main shaft (8) of motor (1) is connected with right half tooth embedding coupler (16) by affixed coupler (22) (as the spline housing coupler).It is 1 planetary gear reducing mechanism that gear reduction of the present utility model (2) preferably adopts few tooth difference.

When the utility model is done lifting work, start motor (1), motor (1) is by eccentric shaft (23) rotation of coupler (9) transmission fewer differential teeth planetary decelerator structure (2), two planetary wheels (26) that link to each other with eccentric shaft (23) upper ball bearing (24), (25) that is rotation, drive bolster (11) rotation of pin frame (10) simultaneously by pin shaft hole on the planetary wheel (26) and bearing pin (27), planetary wheel (26) also rolls in internally toothed annulus (28).

When pressing actuator handle (29), make the friction tape obvolvent of belt actuator start drum (12), thereby the bolster (11) of the pin frame (10) that is attached thereto is stopped operating, two planetary wheels this moment (23) promptly roll along internally toothed annulus (28), because of internally toothed annulus (28) and fastening linking to each other of reel (3), promptly drive reel (3) rotation and roll steel rope.

Startup is all similar with structure to the brake-applying handle shape, but its effect is opposite.Starting handle (29) specially department starts, specially department's braking of brake-applying handle (30).Glancing impact is pressed brake-applying handle (30), simultaneously must unclamp starting handle (29), reel this moment (3) promptly is braked and stall, with reel (3) bonded assembly internally toothed annulus (28) that is stop operating, the power of motor (1) will by two planetary wheels (26) certainly then the bolster (11) of drive pin frame (10) only dally.

When motor (1) close stop after, because of tapered loading self-retention brake equipment is housed, even do not press brake-applying handle (30), reel (3) also can be passed to the right side half tooth embedding coupler (16) counter-rotating that two planetary wheels (26), eccentric shaft (23), motor (1) main shaft (8) make taper self-retention device (17) by internal tooth snare (28) because of the load moment on it, produces lock torque and stall and force brake disc (14) to compress drag cone (13).

During unloaded decline, but disable motor (1), press brake-applying handle (30) earlier, unclamp starting handle (29) simultaneously, the release lever of rotation conic self-retention device (17) makes taper self-retention device (17) be in the release position again, with the descending speed of the free rolling of brake-applying handle (30) control, this moment internally toothed annulus (28) with two planetary wheels (26) between no relative rolling, eliminated noise.

Claims

1, a kind of self-retention winch, it is by motor (1), gear reduction (2), cylinder (3) and base (4) thereof are formed, cylinder (3) one lateral edges are connected with brake wheel (5), base (4) two ends upwards are connected with a bearing frame (6) and a pedestal (7), it is characterized in that motor (1) and gear reduction (2) all are placed in cylinder (3) inside, the main shaft (8) of motor (1) links together by coupler (9) and gear reduction (2), roll and be connected with pin frame (10) in the outer end of gear reduction (2), the bolster (11) that this pin frame (10) outwards is connected with rolls with auxilliary bolster (6) and is connected, be fixed with on the bolster (11) and start drum (12), the main shaft (8) of motor (1) is outwards drawn and pass brake wheel (5) and a pedestal (7) and by drag cone (13) simultaneously, brake disc (14), a left side, right half tooth embedding coupler (15), (16) the taper self-retention device of forming (17) connects, and rolls by bearing (18) and (19) respectively and be connected on the outer end cap of bolster (11) and motor (1) in cylinder (3) two ends.

2,, it is characterized in that it is 1 planetary gear reducing mechanism that gear reduction (2) preferably adopts less the tooth difference by the described self-retention winch of claim 1.

3, by the described self-retention winch of claim 1, it is characterized in that a pedestal (7) is fixed on motor (1) outer end cap by body (20), the drag cone (13) of self-retention device (17) is fixed on the pedestal (7), brake disc (14) is located at drag cone (13) outer end one side, be provided with spring (21) between them, the outer end of brake disc (14) and left half tooth embedding coupler (15) are fixed with one, the outer end of this coupler (15) is provided with right half tooth embedding coupler (16), and the main shaft (8) of motor (1) is connected with right half tooth embedding coupler (16) by affixed coupler (22).