CN200964332Y

CN200964332Y - Double-brake device of power winch

Info

Publication number: CN200964332Y
Application number: CN 200620138525
Authority: CN
Inventors: 黄世吉
Original assignee: Comeup Industries Inc
Current assignee: Comeup Industries Inc
Priority date: 2006-09-13
Filing date: 2006-09-13
Publication date: 2007-10-24
Anticipated expiration: 2016-09-13

Abstract

The utility model discloses a double-brake device used at a motorized winch. In addition to a primary brake device which performs a main brake and is installed in a reduction box at the motorized winch, the utility model is also equipped with a secondary brake device positioned at an output site at a revolving shaft of a motor to control the brake aiming at the revolving shaft of motor. At the structure of utility model, an electromagnetic induction coil is positioned in an adapting seat; a magnetic disk is sandwiched between the adapting seat and a brake lever bracket brake lining and is driven by an elastic part positioned in the adapting seat. When a motorized winch is energized to unfold or collect a steel rope, the induction coil can produce a magnetic force to catch up the magnetic disk and make the elastic part to be compressed. At the same time, the brake lever bracket brake lining can follow the revolving shaft for rotation and act no a brake. When the a motorized winch is deenergized, the induction coil loses the magnetic force immediately to make the magnetic disk under an action from the elastic part so as to make the brake lever bracket brake lining act to form a brake and then drive the revolving shaft of motor and a driven shaft core stop immediately.

Description

Power winch dual brake car device

(1) technical field:

The utility model is relevant for a kind of power winch dual brake car device, mainly be when the motor of power winch stops to switch on, can stop the two the rotation of axle center of motor shaft and institute's transmission rapidly, avoid the abrasion between this axle center and follow-up institute transmission component, make the integral power winch reach the effect of certain brake; The power winch that simultaneously can exempt known single brake gear is when underloading is braked, and actual relative movement is long easily to cause unexpected phenomenon; Generally speaking, the power winch of the utility model can reduce the unexpected probability that takes place with the structure that possesses dual brake car device, belong to the power winch brake gear.

(2) background technology:

But power winch is a kind of folding and unfolding cable wire, to sling or to put down the lift heavy utensil of weight, the lift heavy of being called winch is also arranged.Install and use the place of power winch such as high building Under-Slung Loads with or jeep, cross-country car be used to pull that his car moves or dangerous situation is rescued human.Power winch must have brake gear, can in time fail when stopping to switch on, (to press stop key or prominent chance outage) no matter be, and the brake gear of known power winch has quite multiple contexture, 01229143.9 utility model patent that the applicant once applied for and patented and weigh, name is called the brake gear of power winch, its structure as shown in Figure 1, mainly be in the drop-gear box 1 of power winch, to be provided with one section axle 11, elastic component 12, first wedge type block 13, second wedge type block 14, clutch base 15 members such as grade, wherein, this first wedge type block 13 is sheathed with this section axle 11, on it and be provided with a brake lining 131, be can be with interior friction face 16 contacts of this drop-gear box 1 brake or separate and not brake; 12 relative these first wedge type blocks 13 of this elastic component have suitable rotating force, make the brake lining 131 of this first wedge type block 13 have against the tendency of living this drop-gear box 1 internal friction face 16; 14 of this second wedge type blocks engage to be synchronous rotary state with this section axle 11, and be to have respectively to fit mutually on the opposite side edges of these first and second wedge type blocks 13,14, produce inclined-plane 13A, the 14A of drag effect with the brake lining 131 that promotes this first wedge type block 13, and can drive protruding body 13B, the 14B of pulling of rotation by projection institute's pushing tow of these clutch base 15 inboards; The power of this clutch base 15 then is to be subjected to being driven by the axle center S1 of motor drive rotation, by this, when motor running, can drive these wedge type blocks 13,14 simultaneously by this clutch base 15 and rotate, and make brake lining 131 leave friction face 16, braking action is stopped; And when power stops, then can making the inclined-plane of this second wedge type block 14 promote the inclined-plane of this first wedge type block 13 from the weight counteraction torsion of rope barrel, make the friction face 16 of its brake lining 131 and this drop-gear box 1 closely paste and touch, reach the drag effect.This kind brake gear is the main brake gear of power winch.

Above-mentioned application number is that the brake gear of 01229143.9 patent is quite excellent in the use, but according to for many years manufacturing experience and some users' reaction, become aware of since motor when exerting oneself moving this axle center S1 of frenulum rotate simultaneously, so when motor stops to switch on, based on effect of inertia, motor itself can drive this axle center S1 has the strength and the tendency that are rotated further (can gradually to delay eventually to stopping by rotating speed when general motor stops to switch on, promptly be this kind phenomenon), so easily cause power winch when underloading is braked, to produce the long phenomenon of brake actual relative movement, therefore very easily produce unpredictable accident, and be that brake is firmly really in the vertical drop-gear box in 01229143.9 the patent at above-mentioned application number, but 15 of axle center S1 and clutch bases then still exist inertia to rotate the strength that promotes, so easily cause the abrasion effect of inter-module, and reduce service life.This kind problem is the situation that always all exists on the power winch, must pay attention to and take precautions against its potential danger in fact.

(3) novel content:

The purpose of this utility model is promptly providing a kind of power winch dual brake car device, mainly be when the motor of power winch stops to switch on, can stop the two the rotation of axle center of motor shaft and institute's transmission rapidly, with the auxiliary braking action that produces, avoid the abrasion between this axle center and follow-up institute transmission component, make the integral power winch when stopping to switch on, reach the effect of certain brake; Especially exempt known power winch when underloading is braked, actual relative movement is long easily to cause unexpected phenomenon; Generally speaking, the power winch dual brake car device of the utility model can reduce the unexpected probability that takes place.

A kind of power winch dual brake of the utility model car device, in drop-gear box, be provided with one and can produce first brake gear of main braking action textural at power winch, more be provided with one second brake gear at the motor shaft position of exerting oneself, be used to control braking action to this motor shaft, it is that motor shaft passes a motor fixing base that this second brake gear is mainly constructed, this motor fixing base and be located at the cable pulley permanent seat outside to accept pedestal affixed, a sheathed drive sleeve on this motor shaft, and outside this drive sleeve a sheathed brake lining, and this brake lining is placed in this motor fixing base; This is accepted an electromagnetic type induction coil then is set in the pedestal, and between this brake lining and this induction coil, insert a magnetic conductive disk, this magnetic conductive disk is subjected to one to be located at this and to accept the interior elastic component institute pushing tow of pedestal, paste the tendency of touching and have with this brake lining, only if be subjected to this induction coil institute magnetic, then can leave this brake lining, this rotating shaft termination is then affixed with an axle center, and this axle center also penetrates drive subsequent components effect in the drop-gear box; When the time spent of doing that the power winch energising is made receipts or put cable wire, the magnetic conductive disk magnetic is adsorbed this induction coil generation magnetic force and this elastic component is compressed, this moment this brake lining and this magnetic conductive disk reach and this motor fixing base between promptly produce the gap, rotate along with rotating shaft and this drive sleeve so this brake lining is vertical, but do not produce any braking action; And when power winch stops to switch on, this induction coil is not immediately had magnetic force, so being subjected to this elastic component effect immediately to break away from this induction coil, touches this magnetic conductive disk to these brake lining subsides, make this brake lining and this magnetic conductive disk and with this motor fixing base between the existence of no any gap, and promptly producing braking action, the two immediately stops operating to make this motor shaft and this axle center.

A kind of power winch dual brake of the utility model car device has following advantage and effect:

1. the main braking action of power winch comes from first brake gear in the drop-gear box, and the utility model embodiment exerts oneself at the rotating shaft S of motor 3 that to establish one second brake gear more be the usefulness of a complementary brake at the position, and therefore can make the integral power winch reach better braking effect.

2. second brake gear that added of the utility model embodiment can make power winch when underloading is braked, and is braked rapidly and can reduce the brake actual relative movement by motor shaft, so can significantly reduce the probability of unexpected generation.

(4) description of drawings:

The structure cutaway view of the known power winch of Fig. 1.

The three-dimensional exploded view of Fig. 2 the utility model embodiment.

The structure cutaway view of Fig. 3 the utility model embodiment.

Part enlarged diagram when Fig. 4 the utility model embodiment induction coil has magnetic force (stopping braking action).

Part enlarged diagram when Fig. 5 the utility model embodiment induction coil is not had magnetic force (generation braking action).

Number in the figure is as follows:

11 1 sections axle 12 elastic components of 1 drop-gear box

The protruding body of pulling of 13 first wedge type block 13A inclined-plane 13B

131 brake linings, 14 second wedge type block 14A inclined-planes

Protruding body 15 clutch bases 16 friction faces of pulling of 14B

The S1 axle center

21 1 sections axle 22 elastic components of 2 drop-gear boxs

23 first wedge type blocks, 24 second wedge type blocks, 25 clutch bases

26 brake linings, 3 motors, 31 motor fixing bases

32 drive sleeve, 33 brake linings 4 are accepted pedestal

40 tanks, 41 induction coils, 42 magnetic conductive disks

4A elastic component 5 cable pulley 5A, 5B cable pulley permanent seat

51A tank 52A groove 6 connecting cylinders

S rotating shaft S1 axle center

(5) specific embodiment:

A kind of power winch dual brake of the utility model car device sees also shown in Fig. 2,3, and the utility model embodiment mainly has textural:

One drop-gear box 2 is installed in power winch one side, and train of reduction gears and one first brake gear are promptly established for group in inside, central authorities then have a perforation for an axle center S1 stretch through into; The structure of first brake gear can be identical with the structure in the aforementioned known drop-gear box 1 in this drop-gear box 2, have members such as one section axle 21, elastic component 22, first wedge type block 23, second wedge type block 24, clutch base 25 and brake lining 26 equally, its operating state and action and efficacy are all identical with aforementioned known example, so no longer add to give unnecessary details;

One motor 3, with a motor fixing base 31 interlockings together, the rotating shaft S of this motor 3 pass one of this motor fixing base 31 rear flank be arranged with one with the drive sleeve 32 of the common transmission of this rotating shaft S, a sheathed brake lining 33 outside this drive sleeve 32 again rotates synchronously and stops so this drive sleeve 32 and this brake lining 33 are the rotating shaft S that can follow this motor 3;

One accepts pedestal 4, the central circular hole place has been installed with an elastic component 4A, this is accepted pedestal 4 and has the ccontaining electromagnetic type induction coil 41 of tank 40 confessions of a ring-type in it, and this tank 40 is provided with a magnetic conductive disk 42, make in abutting connection with this induction coil 41, and this magnetic conductive disk 42 is also in abutting connection with this brake lining 33;

Two cable pulley permanent seat 5A, 5B, be installed in two sides of cable pulley 5 respectively, with this cable pulley 5 be that mat cable pulley lining D cover is caught, make cable pulley 5 free to rotate, wherein side has a tank 51A outside this cable pulley permanent seat 5A, offer one on this tank 51A wall and accept the groove 52A of pedestal 4 same diameter with this, it is ccontaining and interlocking is fixed to accept pedestal 4 for this; These cable pulley

permanent seats

5A, 5B and 5 of this cable pulleys have a dust collar C in addition;

One connecting cylinder 6, an inner end is groove dentation slot, and the other end is the polygon slot, is connected with this axle center S1 in order to the rotating shaft S that accepts this motor 3 respectively.

Be second brake gear of the utility model embodiment by common devices of forming of assembly institute such as these drive sleeve 32, brake lining 33, induction coil 41, magnetic conductive disk 42 and elastic component 4A, it mainly acts on is to be used for making the drag effect to the rotating shaft S of this motor 3 and the axle center S1 that rotated by its drive rapidly when power winch stops to switch on, and makes this axle center S1 stop the inertia of subsequent components is driven.Its active state that does not brake sees also shown in Figure 4, Fig. 4 is the part enlarged diagram of the utility model embodiment induction coil 41 when having magnetic force, when power winch is switched on, motor 3 is the action of entry into service to do to receive or put cable wire, i.e. also energising of this induction coil 41 at this moment (it is subjected to electric synchronous with motor 3) and generation magnetic force, and these magnetic conductive disk 42 magnetic are lived (make accept pedestal 4 directions move) toward this, this elastic component 4A is pushed by this magnetic conductive disk 42 and compresses at this moment, simultaneously this brake lining 33 and this magnetic

conductive disk

42 and and 31 of this motor fixing bases all produce the gap, so vertical this brake lining 33 is along with the rotating shaft S of this motor 3 rotates, but this brake lining 33 does not have any braking action, so the power of this motor 3 can be sent to this cable pulley 5 through transmission fully and drive the action that cable wire is done to rise (receipts) or fallen (putting).

When stopping to switch on, power winch (presses stop key or prominent chance outage), see also shown in Figure 5, because of stopping energising so this motor 3 promptly shuts down, this induction coil 41 also stops energising (it is subjected to electric synchronous with motor 3) simultaneously, so can't produce magnetic force, this moment, this magnetic conductive disk 42 promptly broke away from the original magnetic effect of this induction coil 41, and because of the back stretch effect that is subjected to this elastic component 4A is moved and is promptly pasted with this brake lining 33 and touch to these brake lining 33 directions, and force this brake lining 33 to move simultaneously to these motor fixing base 31 directions, make this brake lining 33 and this magnetic conductive disk 42 reach and 31 no any gaps existence of this motor fixing base, so this brake lining 33 promptly is subjected to the extruding of two sides and produces braking action, that is produce the effect stop operating, so moment also forces related this axle center of rotating shaft S S1 of this motor 3 all to stop operating, (for example: inertia clutch base 25) drives to subsequent components to stop, the brake lining 26 of first brake gear is then because of being subjected to these wedge type blocks 23 in the opposite side drop-gear box 2,24 push and produce main braking action, so this cable pulley 5 promptly stops start fully.

Claims

1, a kind of power winch dual brake car device, power winch is provided with first brake gear that can produce main braking action in drop-gear box, it is characterized in that: this power winch is provided with one second brake gear at the motor shaft position of exerting oneself, the structure of this second brake gear is that motor shaft passes a motor fixing base, this motor fixing base and be located at the cable pulley permanent seat outside to accept pedestal affixed, a sheathed drive sleeve on this motor shaft, and outside this drive sleeve a sheathed brake lining, and this brake lining is placed in this motor fixing base; This is accepted an electromagnetic type induction coil then is set in the pedestal, and between this brake lining and this induction coil, insert a magnetic conductive disk, this magnetic conductive disk is subjected to one to be located at this and to accept the interior elastic component institute pushing tow of pedestal, paste the tendency of touching and have with this brake lining, only if be subjected to this induction coil institute magnetic, then can leave this brake lining, this rotating shaft termination is then affixed with an axle center, and this axle center also penetrates drive subsequent components effect in the drop-gear box.