CN2217614Y

CN2217614Y - Electric/hand-driven clutch and brake mechanism of electric winch

Info

Publication number: CN2217614Y
Application number: CN 94247615
Authority: CN
Inventors: 洪茂雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-20
Filing date: 1994-12-20
Publication date: 1996-01-17
Anticipated expiration: 2004-12-20

Abstract

The utility model relates to an electric/manual clutching and braking mechanism of an electric winch, which is mainly composed of a clutching device and a braking device which are matched with a driving mechanism, wherein the clutch device is formed by that a thrust bearing, a clutching bull wheel with a lining, a clutching pinion, a thrust bearing and a compression spring are sheathed on a clutching shaft, and at last a clutching hand is used for locking and positioning; the braking device is formed by that a disk-shaped braking block with a unilateral bearing is arranged on a rotary shaft of a motor, and a braking clip is used for abutting and clamping. Thus, a heavy object can be pulled to generates a braking force which avoids the possibility of driving a wires cross to slide to the opposite direction when the heavy object stops being driven.

Description

Electric winch electronic and manually operated clutch and stop mechanism

The utility model provides a kind of electric winch electronic and manually operated clutch and stop mechanism, refers to that especially engaging and disengaging gear that a kind of winch uses cooperates the stop mechanism on the motor drive shaft, and the drive mechanism in the winch.

In the prior art, electric winch is with transmission device, after the meshed transmission gear one clutch big gear wheel of motor revolving shaft, on this clutch big gear wheel and be provided with a Lining, a closely connected again clutch miniature gears on the Lining utilizes the clutch miniature gears to drive a transmission device again spool is rotated to pull and support weight, when if motor stops operating, it holds the gear teeth of clutch big gear wheel with pawl element, produces a braking force, prevents the downward landing of the weight that is pulled and supported; Wherein, the winch of being habitually practised has shortcoming as described below: the large and small gear of clutch of (1) winch is directly to lock the large and small gear of compressing clutch to lock screw admittedly, make Lining set between the clutch plate of the large and small gear of clutch mutually packing fix, but, winch easily produces vibrations when dilatory, and solid lock helical is fallen back gradually voluntarily because of vibrations, lock the unfavorable condition that screw gets loose admittedly and produce.(2) the large and small gear of clutch is to produce axial forces in direction of principal axis with the screw spiral with screw, it is closely connected to force set Lining in the clutch plate surface of clutch big gear wheel and clutch miniature gears to be packing, so, its be the spiral packing and do not have the buffering strength easily make clutch large and small take turns the set thrust bearing in both sides because of the carrying strength excessive, cause the thrust bearing wear-out failure, and easily cause winch to produce fault, and the inconvenience that need be keeped in repair.

Main purpose of the present utility model, be to provide a kind of electric winch electronic and manually operated clutch and stop mechanism, it mainly is that the Lining and the clutch miniature gears of clutch big gear wheel are that mutual packing is fitted to drive transmission device by axial forces, this axial forces is to use the clutch handwheel directly to screw in the compressing force of oppressing compression spring and producing, and the clutch handwheel screws in tighter its compressing force more greatly, but the strength that it produced is still big not as good as directly oppress clutch to lock the screw helical rotation admittedly, the strength of miniature gears is big, so clutch is big, the thrust bearing of miniature gears both sides, can be not excessive because of load strength, and cause the wear-out failure of thrust bearing.

Secondary objective of the present utility model, be to provide a kind of electric winch electronic and manually operated clutch and stop mechanism, the large and small gear of its clutch is to bestow packing strength with the compressive force of compression spring, so, its gear has a cushion effect when rotating, do not cause the tooth pipe of clutch handwheel to move back reversing gradually certainly, produce situation about getting loose because of vibrations.

Another purpose of the present utility model, be to provide a kind of electric winch electronic and manually operated clutch and stop mechanism, establish a dish-shaped brake shoe with unilateral bearing on its motor shaft, this dish brake shoe and with one the brake intermediate plate clamped, so, when the rotating shaft of motor is rotated, unilateral bearing in this dish brake shoe is the state of idle running, if motor stops operating, and when drawing the situation that is tending towards reversing downwards because of weight, the braking strength of utilizing the power of holding up of dish-shaped brake shoe and brake intermediate plate and motor to produce, the reason weight does not make the motor reversing and twisted wire is pulled out toward reversing sense, and causes the weight downslide.

The utility model is achieved in that

The utility model provides a kind of electric winch electronic and manually operated clutch and stop mechanism, it mainly is that handwheel on the clutch shaft of the large and small gear of clutch is inserted a compression spring, utilize the clutch handwheel directly to lock again with the packing compression spring, make the set Lining of clutch plate of clutch big gear wheel be the state of fitting tightly with the clutch miniature gears, utilize this compression spring can suitably provide the large and small gear of clutch splendid cushion effect, and can avoid the large and small gear of clutch because of bearing too high load, and wear-out failure easily; In addition, the one dish-shaped brake shoe with unilateral bearing is set on the turning cylinder of motor, this dish brake shoe also pushes against with a brake intermediate plate clamping, so, utilize this unilateral bearing to make dish-shaped brake shoe when revolution, be the state of idle running, shut down and work as motor, and when the situation that is tending towards reversing is arranged, the braking strength of utilizing the power of holding up of dish-shaped brake shoe and brake intermediate plate and motor to produce makes the not downward slippage of reason weight and makes the motor reversing, pulls out and cause the past reversing sense of twisted wire.

Following conjunction with figs. describes embodiment of the present utility model in detail:

Fig. 1 is an embodiment block diagram of the present utility model.

Fig. 2 is a block diagram of the present utility model.

Fig. 3 is a transmission scheme drawing of the present utility model.

Fig. 4 is the three-dimensional exploded view of the utility model engaging and disengaging gear.

Fig. 5 is the combination section of the utility model engaging and disengaging gear.

Fig. 6 is the combination section of the utility model stop mechanism.

As Fig. 1, Fig. 2 and shown in Figure 3, the utility model relates to the clutch and the stop mechanism of the electronic and manual spiral of a kind of electric winch, mainly include two side bodies 1,1 ', a permanent seat 2, a motor 3, an engaging and disengaging gear, a stop mechanism and a driving gear set; This permanent seat 2 also is provided with a spool 7 and reels for twisted wires 8, twisted wire 8 front ends then are provided with a clasp 81, only above-mentioned two side bodies 1,1 ', permanent seat 2, spool 7 and twisted wire 8, be the habitual structure of electric winch, so do not give unnecessary details separately in this, existing is described in detail as follows peculiar architectural feature of the present utility model:

Engaging and disengaging gear, as shown in Figure 4, its clutch shaft 41 1 ends are locked on the permanent seat 2 with nut 411, a sheathed thrust bearing 42 on this clutch shaft 41, has the clutch big gear wheel 43 of needle bearing 431 and behind thrust bearing 42, be inserted in one, the clutch plate 432 of clutch big gear wheel 43 is provided with a Lining 44, and on clutch shaft 41 the sheathed one clutch miniature gears 45 with needle bearing 451, after clutch miniature gears 45, insert a thrust bearing 46 again, on clutch shaft 41, be inserted in compression spring 47 again, so, clutch shaft 41 ends are screwed in a clutch handwheel 48 again, are locked on the permanent seat 2 with a dish-shaped nut 481;

Stop mechanism, as shown in Figure 6, its rotating shaft 31 in motor 3 is provided with a dish-shaped brake shoe 51 with unilateral bearing 511, and dish-shaped brake shoe 51 and clamped with brake intermediate plate 52, this brake intermediate plate 52 is fixed on the permanent seat 2;

Driving gear set, its rear axle and transmission shaft 61,62 are fixed on the permanent seat 2, after the big gear wheel 611 of these rear axle 61 1 sides meshes with the clutch miniature gears of clutch shaft 41 45, drive the big gear wheel 621 of transmission shaft 62 again with the opposite side miniature gears 612 of rear axle 61, with the big gear wheel 71 of the 622 engagement spools 7 of the miniature gears on the transmission shaft 62, rotate again and drive spool 7;

Utilize above-mentioned member, after the clutch handwheel 48 of winch can being unscrewed, when making the large and

small gear

43,45 of clutch be lax no fit-state, then can easily twisted wire 8 be pulled out, and make the clasp 81 of twisted wire 8 front ends, hook on the weight that will pull and support, again clutch handwheel 48 is screwed, compressing compression spring 47, make the packing applying mutually of the large and

small gear

43,45 of clutch, can use electronic or manually give transmission the spool 7 of winch is rotated, and twisted wire 8 is furled, the weight of holding with pulling institute hook.

Above-mentioned clutch is big,

miniature gears

43,45 Lining 44 is that mutual packing is fitted by axial forces, this axial forces is to use clutch handwheel 48 directly to screw in, the compressing force of oppressing compression spring 47 and producing, and clutch handwheel 48 screws in tightlier, its compressing force is bigger, but the strength that it produced is big not as good as directly oppress clutch to lock the screw helical rotation admittedly,

miniature gears

43,45 strength is big, so clutch is big, miniature gears 43, the thrust bearing 42 of 45 both sides, 46, can be not excessive because of load strength, and cause thrust bearing 42,46 wear-out failures, in addition, clutch is big,

miniature gears

43,45 are bestowed packing strength with the compressive force of compression spring 47, so, its clutch is big, have a cushion effect during pinion rotation, do not cause the tooth pipe of clutch handwheel 48 to get loose from moving back reversing gradually because of vibrations.

In addition, the action situation that the utility model uses motor 3 to drive driving gear set is: referring to shown in Figure 3, after motor 3 energisings, the gear 32 of motor shaft 31 drives clutch big gear wheel 43, and drive the rear axle big gear wheel 611 of rear axle 61 via the clutch miniature gears 45 that the clutch plate 432 set Linings 44 of clutch big gear wheel 43 are close to, and the rear axle miniature gears 612 of rear axle 61 other ends drives to the transmission big gear wheel 621 of transmission shaft 62 again, the drive pinion 622 of transmission shaft 62 then drives spools 7 with gear 71 engagement of spool 7 and rotates, transmission through a succession of gear cluster, reach the purpose of deceleration, and by deceleration, the strength that spool 7 is rotated increases, and makes twisted wire 8 easily weight to be spurred.

In addition, above-mentioned is to utilize motor 3 to drive to use, if under the unregulated power situation, also can use M/C, it uses situation to be: utilize the handle bar (not shown) of accessory to be sheathed on the nose bar 613 of rear axle 61 1 ends, promptly can hand mode drive driving gear set and carry out transmission, spool 7 is rotated twisted wire 8 is involved in.

In addition, the set stop mechanism of the utility model can avoid weight to glide easily with the weight brake location that is pulled and supported when electronic or manual shut-down operation; Its action situation is: the set dish-shaped brake shoe 51 with unilateral bearing 511 in the rotating shaft 31 of motor 3, this dish brake shoe 51 is clamped with brake intermediate plate 52, so, when the rotating shaft 31 of motor 3 is rotated or during hand rotation, unilateral bearing 511 in this dish brake shoe 51 is idling conditions, if motor 3 stops operating, when the situation of counter-rotating being arranged downwards because of weight is dilatory, this dish brake shoe 51 and brake intermediate plate 52 thereof produce a braking strength with the power of holding up of motor 3, can prevent that the situation that motor 3 reversings cause weight to glide from taking place.

Claims

1. the clutch and the stop mechanism of the electronic and manual spiral of an electric winch, it comprises an engaging and disengaging gear, a stop mechanism, a driving gear set, it is characterized in that:

Engaging and disengaging gear, it is locked in permanent seat (2) and establishes a clutch shaft (41), this clutch shaft (41) is gone up a sheathed thrust bearing (42), and behind thrust bearing (42), be inserted in a clutch big gear wheel (43), the clutch plate (432) of clutch big gear wheel (43) is gone up the sticking Lining (44) that is provided with, go up a sheathed clutch miniature gears (45) in this clutch shaft (41) again, insert a thrust bearing (46) afterwards in clutch miniature gears (45) again, go up a sheathed compression spring (47) in clutch shaft (41), locked with a clutch handwheel (48) in clutch shaft (41) is terminal more at last;

Stop mechanism, its rotating shaft in motor (3) (31) are provided with a dish-shaped brake shoe (51) with unilateral bearing (511), and dish-shaped brake shoe (51) and clamped with brake intermediate plate (52), this brake intermediate plate (52) is fixed on the permanent seat (2);

Driving gear set, it is fixed on the permanent seat (2).

2. the clutch and the stop mechanism of the electronic and manual spiral of electric winch as claimed in claim 1, it is characterized in that, this driving gear set, be fixed in permanent seat (2) by a rear axle (61) and transmission shaft (62), after the big gear wheel (611) of rear axle (61) one sides meshes with the clutch miniature gears (45) of clutch shaft (41), the opposite side miniature gears (612) of transmission rear axle (61) drives the big gear wheel (621) of transmission shaft (62), with the big gear wheel (71) of the engagement spool of the miniature gears (622) on the transmission shaft (62) (7), rotate again and drive spool (7).

3. the clutch and the stop mechanism of the electronic and manual spiral of electric winch as claimed in claim 2 is characterized in that, can sheathed one handle bar on the nose bar (613) of these rear axle (61) one sides.