CN202851857U - Shunt gravity brake mechanism and lifting winch and lifter drive plate - Google Patents
Shunt gravity brake mechanism and lifting winch and lifter drive plate Download PDFInfo
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- CN202851857U CN202851857U CN2012203033380U CN201220303338U CN202851857U CN 202851857 U CN202851857 U CN 202851857U CN 2012203033380 U CN2012203033380 U CN 2012203033380U CN 201220303338 U CN201220303338 U CN 201220303338U CN 202851857 U CN202851857 U CN 202851857U
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Abstract
The utility model provides a shunt gravity brake mechanism which is characterized by comprising a worm (11), a worm wheel (12), a brake star wheel (15) and a brake pin roller (16), and the worm (11) and the worm wheel (12) form a self-locking worm wheel and worm mechanism. A cylinder brake drum which is coaxial with a rotating axis of the worm wheel (12) is arranged in the center of the worm wheel (12). The brake star wheel (15) is arranged in the cylinder brake drum which is arranged on the center position of the worm wheel (12) and arranged with the rotating axis of the worm wheel (12) in a coaxial mode. The brake pin roller (16) is arranged between a working surface of the brake star wheel (15) and the inner wall of the cylinder brake drum on the central position of the worm wheel (12). The shunt gravity brake mechanism avoids the defect which is brought by an electromagnetic brake mechanism, and improves working conditions of lifting machinery by setting a load sensor and a manual operation turning mechanism. The utility model further provides a lifting winch and a lifter drive plate, wherein the lifting winch and the lifter drive plate are respectively provided with the shunt gravity brake mechanism.
Description
Technical field
The utility model relates to the Hoisting Machinery technical field, belongs to a kind of mechanical transmission component that the lifting speed reducer configures, and is specifically related to a kind of lift driver plate that gravity arrestment mechanism, a kind of hoisting winding and a kind of elevator of constructing configure of shunting.
Background technique
In the Hoisting Machinery field of engineering technology, hoisting winding is one of most important mechanical transmission component.The work characteristics of hoisting winding is, hung by steel wire rope hook by the lifting object, and wirerope-winding is on the reel of winch, and by the rotation folding and unfolding wire rope of reel positive and negative direction, lifting aloft is by the lifting object.Because by all the time lifting aloft of lifting object, in any moment of reel rotary work, all need carry by the downward gravity of lifting object, if aloft need be stopped by the lifting object, at any time the brake hoist engine reel or the braking hoisting speed reducer other rotary components, although the lifting speed reduction driving mechanism for power that the construction elevator configures adopts the gear rack transmission, the braking problem of facing also is similar.
Although Worm and worm-wheel gearing can be realized at any time braking by its latching characteristics, the transmission efficiency of self-locking worm gear worm screw is very low, generally can not be used in the conventional Hoisting Machinery.In the prior art, use most often electromagnetic brake, electromagnetic brake relies on the rotary component of spring pressure and friction disc brake winch, the electromagnet then brake off power of switching on.Because the switching of electromagnet electricity is synchronous with the main bridge motor of winch, in main bridge motor energising, when lifting drum is started working, electromagnet is simultaneously energising also, and the braking force of electromagnetic brake is disengaged, and reel runs well, when aloft slightly being done to stop by the lifting object, main bridge motor and electromagnet cut off the power supply simultaneously, and brake spring passes through the Brake drum of friction disc brake winch immediately, thereby realize the at any time braking of winch.The lift driver plate that the construction elevator configures, its braking working principle is identical with the braking working principle of winch.
In actual use, hoist hoisting mechanism and the existing subject matter of lift driver plate of electromagnetic brake type is:
When 1, line fault or other fault appear in electromagnet, often do not discovered at once, within a period of time of being everlasting, winch is worked under the friction disc brake state always, has both consumed the wearing and tearing that electric energy also causes friction plate.
2, the wearing and tearing of friction plate are not often discovered again at once, perhaps friction plate is when having lost the safety brake ability, in time be not replaced, especially when accidental lifting large-tonnage lifting object is done aerial the stop, find that just the friction disc brake ability is inadequate, at this moment often cause the security incidents such as slide car.
3, electromagnetic brake type hoists hoisting mechanism when not working, driving mechanism is braked, be not easy to installed load sensor measuring apparatus, such as the construction elevator be exactly freight under the halted state, on the people, especially need to loading, on timely perception load during the people, in time make overload warning.
4, electromagnetic brake type hoists hoisting mechanism when stopping, and driving mechanism is braked, and also is not easy to install handwheel, and this point seems particularly important when large-tonnage, accurate lifting.
The history in existing more than 100 year of the application of electromagnetic brake in the winch that hoists, above-mentioned technological deficiency is a kind of history, known technical barrier; Produce many patents and non-patent technology scheme for this technical barrier, also do not have very perfect solution at present.The patent No. is that 201120129374.5 utility model patent and number of patent application are 201110107488.4 application for a patent for invention, bi-directional drive mechanism at a kind of intermittence has been proposed, number of patent application is that 201220049575.9 utility model patent and number of patent application are the application for a patent for invention of 201210034553.X, on the basis of bi-directional drive mechanism at intermittence, carry out technique extension, intermittently bi-directional drive mechanism of a kind of dual output has been proposed, for the lifting reducing gear is designed a kind of novel shunting gravity arrestment mechanism, provide solution route for the hoist technological deficiency of hoisting mechanism and lift driver plate of above-mentioned electromagnetic brake type.
Summary of the invention
First purpose of the present utility model provides a kind of novel shunting gravity arrestment mechanism, use number of patent application and be intermittently bi-directional drive mechanism of a kind of dual output that application for a patent for invention that 201220049575.9 utility model patent and number of patent application be 201210034553.X proposes, utilize the separately technical feature of independence, mutual noninterference transmitted power stream of positive and negative two sense of rotation of dual output bi-directional drive mechanism at intermittence, be divided into two output powers streams with hoisting with the rotatablely moving of two different direction that descend:
1, motor hoist rotatablely move by dual output intermittently bi-directional drive mechanism one intermittence passive sheave, power is passed to the driving mechanism that rotatablely moves that hoists.
2, the decline of motor rotatablely moves by the passive sheave at another intermittence of dual output bi-directional drive mechanism at intermittence, and power is passed to the self-locking worm gear worm mechanism.
3, hoist and rotatablely move in the motion transmission path of driving mechanism, be provided with the braking star-wheel; Structure by cylindrical gear mechanism, bevel gear mechanism in the bang path that rotatablely moves that hoists configures, the spin axis of braking star-wheel can be arranged into the spatial position coaxial with the worm gear spin axis, and will brake star-wheel and be arranged in the set cylindrical brake drum in worm gear central position, with the coaxial installation of worm gear spin axis.
4, be provided with the braking roller between the set cylindrical brake drum inwall in the braking working surface of star-wheel and worm gear central position, so that the braking star-wheel has a direction with worm gear and can relatively normally rotate, another sense of rotation then produces self-locking and can not relative movement.
5, utilize the braking star-wheel can only have a direction relatively normally to rotate with worm gear, another direction can not relative movement characteristics, being connected to hoists rotatablely moves that worm gear normally rotates hoisting when rotatablely moving relatively for braking star-wheel in the bang path, when aloft being stopped by the lifting object, because action of gravitation is so that the braking roller between braking star-wheel and the worm gear produces self-locking, worm gear has born by the moment that gravity produced of lifting object; Because the worm gear of self-locking worm gear worm mechanism can not order about the worm screw rotation, therefore the braking star-wheel is produced braking action, stop the decline of weight.
6, when the needs weight descends, the motor counter-rotating, the decline of motor rotatablely moves by the passive sheave at another intermittence of dual output bi-directional drive mechanism at intermittence, drive the rotation of self-locking worm gear worm mechanism, under action of gravitation, braking star-wheel and the hoisting driving mechanism that rotatablely moves is followed together worm gear and is done to descend and rotatablely move, and realizes the descending motion of weight.At this moment, originally power being passed to hoists the rotatablely move passive sheave at intermittence of driving mechanism, thrown off and the intermittently engagement of bi-directional drive pawl and become free end among the bi-directional drive mechanism of dual output, rotatablely move although also follow together the decline of worm gear do, can not rotatablely move to produce to decline and hinder.
7, owing to there not being the interference effect of friction disc brake power, at the axle head of described worm screw, the weight that pressure transducer can real time measure load is set.
Second purpose of the present utility model is that shunting gravity arrestment mechanism is replaced electromagnetic braking of the prior art mechanism, the braking star-wheel is connected in the reducing gear of existing winch, set up Hand-shifting wheel, design and a kind ofly rely on gravity braking, have handwheel, have the New crane winch of load measuring device.
The 3rd purpose of the present utility model is that shunting gravity arrestment mechanism is replaced electromagnetic braking of the prior art mechanism, the braking star-wheel is connected on the output shaft of existing lift driver plate, set up Hand-shifting wheel, design and a kind ofly rely on gravity braking, have handwheel, have the novel elevating machine driver plate of load measuring device.
Shunting gravity arrestment mechanism of the present utility model is characterized in that: comprise worm screw, worm gear, braking star-wheel, braking roller;
Described worm screw and described worm gear consist of the self-locking worm gear worm mechanism;
Described worm gear central position is provided with the cylindrical brake drum coaxial with described worm gear spin axis;
Described braking star-wheel is arranged in the cylindrical brake drum of described worm gear central position setting, with the coaxial installation of described worm gear spin axis;
Be provided with described braking roller between the cylindrical brake drum inwall that the working surface of described braking star-wheel and described worm gear central position arrange.
In the above-mentioned shunting gravity arrestment mechanism technological scheme, for realizing a motoring, the mutual noninterference that rotatablely moves of positive and negative both direction, independent transmitted power stream separately is characterized in that: also comprise dual output intermittently bi-directional drive mechanism, gear drive;
Described dual output intermittently bi-directional drive mechanism dextrorotation or left-handed intermittence passive sheave be connected with described worm screw, or be connected with described worm screw by described gear drive;
Described the dual output intermittently left-handed or dextrorotation passive sheave at intermittence of bi-directional drive mechanism is connected with described braking star-wheel, or is connected with described braking star-wheel by described gear drive.
In the above-mentioned shunting gravity arrestment mechanism technological scheme, for guaranteeing that the spin axis that will brake star-wheel is arranged into the spatial position coaxial with the worm gear spin axis, it is characterized in that: described gear drive can comprise column gear transmission mechanism, also can comprise conical gear drive.
In the above-mentioned shunting gravity arrestment mechanism technological scheme, for realizing the load real time measure, it is characterized in that: the axle head described worm screw is provided with pressure transducer.
In the above-mentioned shunting gravity arrestment mechanism technological scheme, implement it is characterized in that for the ease of the technological scheme under the process conditions license: a kind of set-up mode that the worm gear central position arranges cylindrical brake drum is at cylindrical brake drum coaxial with the spin axis of described worm gear of the center portion of described worm gear processing.
Hoisting winding of the present utility model, comprise cable drum, speed reducer, lifting motor, frame, it is characterized in that: also comprise the shunting gravity arrestment mechanism described in the technique scheme, the input shaft of described braking star-wheel and described speed reducer is fixedly connected; Perhaps the transmission shaft of doing arbitrarily the System of Rotating about Fixed Axis motion with described speed reducer is fixedly connected.
In the above-mentioned hoisting winding technological scheme, it is characterized in that: described motor output shaft position is provided with Hand-shifting wheel.
Lift driver plate of the present utility model comprises elevating motor, actuation gear, output shaft, it is characterized in that: also comprise the shunting gravity arrestment mechanism described in the technique scheme, described braking star-wheel and described output shaft are fixedly connected.
In the above-mentioned lift driver plate technological scheme, it is characterized in that: described lifting electric drive end unit is provided with manual pulley.
Essence of an invention characteristics and remarkable result:
A kind of gravity arrestment mechanism of shunting that provides of the present utility model is a kind of basic transmission part that is applicable to the Hoisting Machinery transmission.Number of patent application is intermittently bi-directional drive mechanism of a kind of dual output of proposing of application for a patent for invention that 201220049575.9 utility model patent and number of patent application are 201210034553.X, the patent No. be 201120129374.5 model utility and number of patent application be 201110107488.4 patent of invention propose intermittence bi-directional drive mechanism the basis on, two sense of rotation driven wheels about being provided with, the driven wheel of positive and negative two sense of rotation are independent, mutual noninterference separately; In the start-up course after commutation, after a dwell time at intermittence, originally the driven wheel power of rotation is cut off, and motion stops, and originally static driven wheel is then towards another opposite direction rotation.
Shunting gravity arrestment mechanism provided by the utility model adopts intermittently bi-directional drive mechanism of above-mentioned dual output, with rotatablely moving of the positive and negative both direction of drive motor, respectively by two-way transmission system shunting output, via the transmission of separately transmission system, one tunnel transmission system wherein is connected with the worm screw of self-locking worm gear worm mechanism.Another road transmission system then is connected the power mechanism of the weights that hoist such as the direct connecting steel wire ropes reel of this road transmission system, actuation gear with braking star-wheel among the worm gear that is arranged at the self-locking worm gear worm mechanism.Because the reverse self-locking mechanism of utilized brake drum, braking star-wheel, braking roller, so that the road transmission system that drive motor is connected with the braking star-wheel, the rotatablely moving of weight that hoist is not subjected to restrict, and causes that under Action of Gravity Field the counterrotating campaign of mechanism is subject to braking the restriction of star-wheel and self-locking worm gear worm mechanism.This is just so that in the process of the weight that hoists, when the drive motor stop motion, transmission system is braked immediately, and weight both can aloft stop.When needs are done the weight descending motion, only need to be with the drive motor counterrotating, the transmission system that is connected with the worm screw of self-locking worm gear worm mechanism produces and rotatablely moves, under action of gravitation, braking star-wheel and the transmission system that is connected with the braking star-wheel will be along with the rotation work of worm gear so that rotatablely moving of weight decline.
The shunting gravity arrestment mechanism that provides of the present utility model is replaced traditional electromagnetic braking mechanism to be set among the transmission system of winch and lift driver plate, the drawback that the lifting driving mechanism of releasing has avoided electromagnetic braking mechanism to bring, can reduce the occurrence probability of lifting security incident, because under the off-position, mechanism is not braked, so that in transmission system, load transducer is set and Manual jigger mechanism becomes possibility, can well improve like this operating conditions of Hoisting Machinery.
Description of drawings
Fig. 1 is intermittently bi-directional drive mechanism structure sectional view of dual output;
Fig. 2 is intermittently bi-directional drive mechanism structure axle survey cross-sectional schematic of dual output;
Fig. 3 is A-A sectional view shown in Figure 1;
Fig. 4 is B-B sectional view shown in Figure 1;
Fig. 5 is intermittently bi-directional drive mechanism structure sectional view of second case dual output;
Fig. 6 is intermittently bi-directional drive mechanism structure axle survey cross-sectional schematic of second case dual output;
Fig. 7 is that the utility model hoisting winding configuration shunting gravity arrestment mechanism embodiment axle measures intention;
Fig. 8 is the utility model hoisting winding configuration shunting gravity arrestment mechanism example structure sectional view;
Fig. 9 is C-C sectional view shown in Figure 8;
Figure 10 is D-D sectional view shown in Figure 8;
Figure 11 is that the utility model lift driver plate configuration shunting gravity arrestment mechanism embodiment axle measures intention;
Figure 12 is the utility model lift driver plate configuration shunting gravity arrestment mechanism example structure sectional view;
Figure 13 is E-E sectional view shown in Figure 12;
Figure 14 is that the utility model hoisting winding axle measures intention;
Figure 15 is the utility model hoisting winding plan view;
Figure 16 is that the utility model lift driver plate axle measures intention;
Figure 17 is that the utility model lift driver plate axle is surveyed cross-sectional schematic;
Figure 18 is the utility model lift driver plate structure sectional view.
The accompanying drawing marking explanation:
Left-handed intermittence of 1-driving wheel 2-passive sheave 3-bi-directional drive pawl
The intermittently passive sheave 5-dextrorotation of 4-dextrorotation is passive sheave A intermittently
Left-handed intermittence of 6-, passive sheave A 7-drive bevel gear 8-was by dynamic bevel gear
9-cylindrical gears A 10-cylindrical gears B 11-worm screw 12-worm gear
13-pressure transducer 14-transmission shaft 15-braking star-wheel 16-braking roller
17-duplex driving gear 18-driving gear A 19-driving gear B
The passive helical bevel gear 21-of 20-is helical bevel gear 22-cylindrical gears C initiatively
23-lifting motor 24-cable drum 25-Hand-shifting wheel
26-elevator braking casing 27-speed reducer 28-frame 29-panel system motivation shell
30-elevating motor 31-manual pulley 32-actuation gear 33-output shaft
Embodiment
The shunting gravity arrestment mechanism that the utility model proposes, based on synthesizing of two design proposals, the one, adopt dual output bi-directional drive mechanism at intermittence to hoist and descend two to moving and transmit shunting output, the 2nd, the structural type that adopts the self-locking worm gear worm mechanism to add " braking star-wheel-braking roller " is realized the gravity braking.Fig. 1, Fig. 2 and Fig. 5, Fig. 6 are intermittently bi-directional drive two different embodiments of mechanism of dual output, and both drive forms are Fig. 3 and shown in Figure 4.
Fig. 7 is that the utility model shunting gravity arrestment mechanism embodiment axle that hoisting winding configures measures intention, and this figure has concealed elevator braking casing 26.Such as Fig. 7, shown in Figure 8, drive motor power is by driving wheel 1 input, the bi-directional drive pawl 3 that is installed on driving wheel 1 passes to passive sheave A6 at left-handed intermittence with rotating power, the braking star-wheel 15 an end with left-handed intermittence passive sheave A6 be fixedly connected with, the other end is fixedly connected with transmission shaft 14, therefore, rotating power is by transmission shaft 14 outputs.By the rotating power of transmission shaft 14 outputs, will continue as the rotating power of the weight that hoists to transmit backward.
When driving driving wheel 1 counterrotating when the drive motor counterrotating, 3 of bi-directional drive pawls that are installed on driving wheel 1 pass to intermittently passive sheave A5 of dextrorotation with reverse rotating power, and this moment at left-handed intermittence, passive sheave A6 became the free end of Transmitted chains owing to having lost constraint that bi-directional drive pawl 3 applies.Drive bevel gear 7 is fixedly connected with dextrorotation passive sheave A5 at intermittence, by by dynamic bevel gear 8, cylindrical gears A9, cylindrical gears B10 reverse rotating power being passed to worm screw 11, rotates thereby drive worm gear 12, such as Fig. 7, shown in Figure 9.
As shown in figure 10, braking star-wheel 15 is fixedly connected with transmission shaft 14, when braking star-wheel 15 works counter clockwise direction is as shown in figure 10 rotated, transmits the rotating power of the weight that hoists, and its motion is transmitted not interrupted.As shown in figure 10, be provided with braking roller 16 between the cylindrical brake drum inwall of the working surface of braking star-wheel 15 and worm gear 12 central positions.When the Action of Gravity Field of the weight that hoists so that braking star-wheel 15 when having as shown in figure 10 right handed trend, the cylndrical surface of braking roller 16 be subject to the contacted normal force of the working surface of braking star-wheel 15 and with the contacted normal force of cylindrical brake drum inwall of worm gear 12 central positions, because the angle of two active forces is less than friction angle, the cylindrical brake drum inwall of braking roller 16 in worm gear 12 central positions produces self-locking and braking star-wheel (15) produced braking action.Because worm screw 11 consists of the self-locking worm gear worm mechanism with worm gear 12, therefore, the Action of Gravity Field of the weight that hoists can not cause braking star-wheel 15 and produce as shown in figure 10 clockwise rotatablely moving again.Thereby reached in the weight process that hoists, during the drive motor stop motion, the purpose that weight aloft stops.When weight aloft stops, the weight of weight passes to the self-locking worm gear worm mechanism by braking star-wheel 15, braking roller 16, the axle head that causes worm screw 11 bears thrust load, therefore at the axle head of worm screw 11 pressure transducer 13 is installed, and can monitor in real time by the weight of lifting object.
When thereby drive motor was done to drive driving wheel 1 rotation and drive worm gear 12 and produce as shown in figure 10 clockwise rotatablely moving with reverse the rotatablely moving of the weight that hoists, the Action of Gravity Field of the weight that hoists caused braking star-wheel 15 and produces as shown in figure 10 clockwise rotatablely moving so that brake star-wheel 15 and follow the rotation of worm gear 12 and produce motion.Thereby reached when drive motor is done rotatablely moving of weight decline, the gravity of weight is so that braking star-wheel 15 is followed the purpose that the rotation of worm gear 12 causes weight to descend.
The working principle of shunting gravity arrestment mechanism can be described as follows:
Drive motor is inputted the intermittently driving wheel of bi-directional drive mechanism of dual output with power, by the bi-directional drive pawl respectively towards positive and negative two sense of rotation output powers stream, separately independent, the mutual noninterference of passive sheave of positive and negative two sense of rotation that driven by the bi-directional drive pawl.The hoist rotating power of weight of the passive sheave transmission of a sense of rotation, on the transmission path of this power stream, be fixedly connected one by braking star-wheel, braking roller, cylindrical brake drum consist of can only single direction rotation or be called the gravity one-way brake mechanism of one-way brake, the worm gear of its cylindrical brake drum and self-locking worm gear worm mechanism is integrally formed.When the drive motor stop motion, the gravity one-way brake mechanism realizes the purpose that weight stops aloft.Axle head worm screw is installed a pressure transducer, can monitor in real time by the weight of lifting object.
The passive sheave of another sense of rotation transmits the rotating power that weight descends, and on the transmission path of this power stream, is passed through commutation and the speed change of gear drive by the rotating power of passive sheave transmission, drives the worm screw rotation of self-locking worm gear worm mechanism.When drive motor was done rotatablely moving of weight decline, worm gear and cylindrical brake drum produced and rotatablely move, and braking star-wheel, braking roller are namely followed cylindrical brake drum and rotated together under lifting object action of gravitation, realize the weight descending motion.
The descending motion of weight causes the heat that mechanism produces, and mainly comes from the self-locking worm gear worm mechanism and is guaranteeing that weight does under the condition of uniform descent motion the friction that institute's bearing torque is brought the worm and gear flank of tooth.At the lubrication state that fully takes into account the intermittence working system of hoist, the worm and gear flank of tooth, the radiating condition of casing etc., as calculated checking, the shunting gravity arrestment mechanism embodiment who the utility model proposes in actual use its heat dispersion is reliable.
Figure 11, Figure 12 shows that another embodiment's of the utility model shunting gravity arrestment mechanism that the lift driver plate configures axle measures intention and structure sectional view.Such as Figure 11, shown in Figure 12, drive motor power is by driving wheel 1 input, and the bi-directional drive pawl 3 that is installed on driving wheel 1 passes to passive sheave 2 at left-handed intermittence with rotating power, and left-handed intermittence, passive sheave 2 was passed to initiatively helical bevel gear 21 with rotating power; By passive helical bevel gear 20, driving gear B19, duplex driving gear 17, rotating power is passed to driving gear A18.When driving driving wheel 1 counterrotating when the drive motor counterrotating, 3 of bi-directional drive pawls that are installed on driving wheel 1 pass to intermittently passive sheave 4 of dextrorotation with reverse rotating power, and this moment at left-handed intermittence, passive sheave 2 became the free end of Transmitted chains owing to having lost constraint that bi-directional drive pawl 3 applies.Cylindrical gears C22 and dextrorotation intermittently passive sheave 4 are fixedly connected, and reverse rotating power is passed to worm screw 11, thereby drive worm gear 12 rotations.As shown in figure 13, be provided with braking roller 16 between the cylindrical brake drum inwall of the working surface of braking star-wheel 15 and worm gear 12 central positions.The axle head of worm screw 11 is equipped with a pressure transducer 13.Figure 11, Figure 12, shunting gravity arrestment mechanism shown in Figure 13 and Fig. 7, Fig. 8, Fig. 9, shunting gravity arrestment mechanism working principle shown in Figure 10 are identical.
Figure 14, Figure 15 shows that the utility model hoisting winding axle measure the intention and plan view.Such as Figure 14, shown in Figure 15, lifting motor 23, speed reducer 27, cable drum 24, elevator braking casing 26 etc. all are installed on the frame 28.Fig. 7, Fig. 8, Fig. 9, shunting gravity arrestment mechanism shown in Figure 10 are installed within the elevator braking casing 26.Be provided with Hand-shifting wheel 25 at lifting motor 23 output shaft positions.To the hoist rotating power of weight of lifting motor 23 passes to shunting gravity arrestment mechanism, and will the hoist rotating power output of weight of the transmission shaft 14 of shunting gravity arrestment mechanism drives cable drums 24 rotations by speed reducer 27, realizes hoisting of weight.
When driving driving wheel 1 when lifting motor 23 counterrotatings and doing counterrotating that weight descends, by drive bevel gear 7, by dynamic bevel gear 8, cylindrical gears A9, cylindrical gears B10 etc. reverse rotating power is passed to worm screw 11, thereby drive worm gear 12 rotations, such as Fig. 7, shown in Figure 9.Weight then reaches speed reducer 27 by cable drum 24 with gravity, reaches braking star-wheel 15 by transmission shaft 14 again, and under Action of Gravity Field, braking star-wheel 15 is followed the rotation of worm gear 12 and produced motion, realizes that weight descends.
In Figure 14, the utility model hoisting winding embodiment shown in Figure 15, braking star-wheel 15 is connected with transmission shaft 14, and directly is connected with the input shaft of speed reducer 27.In the actual design process of product, only need assurance braking star-wheel 15 to be fixedly connected together with the transmission shaft of doing arbitrarily the System of Rotating about Fixed Axis motion in worm gear 12 and the speed reducer 27 and get final product; Concrete design proposal is selected, and and be conducive to the installation of self-locking worm gear worm mechanism and the optimization principles of drive path and deciding with the pattern of selected speed reducer.
In Figure 14, the utility model hoisting winding embodiment shown in Figure 15, Hand-shifting wheel 25 is arranged on lifting motor 23 output shaft positions, Hand-shifting wheel 25 outer rims are furnished with one group of hinge last, can adopt easily the driving lever hand turning.Because in the whole drive path, need not to adopt electromagnetic brake, therefore under off-position, can hand turning realize being risen rising and the decline of weight, this function seems particularly important for unexpected power failure, some mechanical failure or for the accurate location lifting of large-tonnage weight.The present embodiment boundary dimension is the high mm of the wide x850 of the long x1600mm of 1700mm, and motor power (output) is 22kW, and rated load weight is 80kN, and the cable drum diameter is 430mm.
Figure 16, Figure 17, Figure 18 shows that the utility model lift driver plate axle measures intention, axle and surveys cross-sectional schematic and structure sectional view.Such as Figure 17, shown in Figure 180, elevating motor 30 is connected with driving wheel 1, and institute's input power passes to output shaft 33 through Figure 11, Figure 12, shunting gravity arrestment mechanism shown in Figure 13.Braking star-wheel 15, driving gear A18, actuation gear 32 have been fixedly connected on the output shaft 33.Actuation gear 32 outputting rotary powers, thus realize the rising of lift driver plate, rising and the decline that the decline function drives elevator craning cage.The afterbody of elevating motor 30 is provided with manual pulley 31, can hand turning realizes rising and the decline of elevator craning cage.The present embodiment motor power (output) is 11kW, and revolution is 1450rpm, and the actuation gear modulus is 8mm, and the number of teeth is 15 teeth, and the resultant gear ratio of the drive path that hoists is i=14.14, and the resultant gear ratio of decline drive path is i=13.33.
A kind of gravity arrestment mechanism of shunting that provides of the present utility model is a kind of basic transmission part that is applicable to the Hoisting Machinery transmission, replace among the transmission system that traditional electromagnetic braking mechanism is set to winch and lift driver plate, the drawback that the lifting driving mechanism of releasing has avoided electromagnetic braking mechanism to bring, can reduce the occurrence probability of lifting security incident, because under the off-position, mechanism is not braked, so that in transmission system, load transducer is set and Manual jigger mechanism becomes possibility, can well improve like this operating conditions of Hoisting Machinery.
Claims (8)
1. a shunting gravity arrestment mechanism is characterized in that: comprise worm screw (11), worm gear (12), braking star-wheel (15), braking roller (16); Described worm screw (11) consists of the self-locking worm gear worm mechanism with described worm gear (12); Described worm gear (12) central position is provided with the cylindrical brake drum coaxial with described worm gear (12) spin axis; Described braking star-wheel (15) is arranged in the cylindrical brake drum of described worm gear (12) central position setting, with the coaxial installation of described worm gear (12) spin axis; Be provided with described braking roller (16) between the cylindrical brake drum inwall that the working surface of described braking star-wheel (15) and described worm gear (12) central position arrange.
2. shunting gravity arrestment mechanism according to claim 1 is characterized in that: also comprise dual output intermittently bi-directional drive mechanism, gear drive; Described dual output intermittently dextrorotation or the passive sheave at left-handed intermittence (4) of bi-directional drive mechanism is connected with described worm screw (11), or is connected with described worm screw (11) by described gear drive; Described the dual output intermittently left-handed or dextrorotation passive sheave at intermittence (2) of bi-directional drive mechanism is connected with described braking star-wheel (15), or is connected with described braking star-wheel (15) by described gear drive.
3. shunting gravity arrestment mechanism according to claim 1, it is characterized in that: the axle head in described worm screw (11) is provided with pressure transducer (13).
4. shunting gravity arrestment mechanism according to claim 1 is characterized in that: a kind of set-up mode that described worm gear (12) central position arranges cylindrical brake drum is at cylindrical brake drum coaxial with spin axis of the center portion of described worm gear (12) processing.
5. hoisting winding, comprise cable drum (24), speed reducer (27), lifting motor (23), frame (28), it is characterized in that: also comprise the described shunting gravity of any one claim arrestment mechanism in the claim 1 to 5, described braking star-wheel (15) is fixedly connected with the input shaft of described speed reducer (27); Perhaps the transmission shaft of doing arbitrarily the System of Rotating about Fixed Axis motion with described speed reducer (27) is fixedly connected.
6. hoisting winding according to claim 5, it is characterized in that: described lifting motor (23) output shaft position is provided with Hand-shifting wheel (25).
7. lift driver plate, comprise elevating motor (30), actuation gear (32), output shaft (33), it is characterized in that: also comprise the described shunting gravity of any one claim arrestment mechanism in the claim 1 to 5, described braking star-wheel (15) is fixedly connected with described output shaft (33).
8. lift driver plate according to claim 7, it is characterized in that: described elevating motor (30) afterbody is provided with manual pulley (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203033380U CN202851857U (en) | 2012-06-27 | 2012-06-27 | Shunt gravity brake mechanism and lifting winch and lifter drive plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203033380U CN202851857U (en) | 2012-06-27 | 2012-06-27 | Shunt gravity brake mechanism and lifting winch and lifter drive plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851857U true CN202851857U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203033380U Expired - Fee Related CN202851857U (en) | 2012-06-27 | 2012-06-27 | Shunt gravity brake mechanism and lifting winch and lifter drive plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851857U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511524A (en) * | 2012-06-27 | 2014-01-15 | 甘亚冰 | Diversion gravity braking mechanism, lifting winch and lift transmission board |
| CN106672838A (en) * | 2017-01-06 | 2017-05-17 | 阮潇禾 | Brake device for small building jack |
| CN111396535A (en) * | 2020-04-18 | 2020-07-10 | 江阴市华方新能源高科设备有限公司 | Rotary reducer with torque feedback function |
| CN111692317A (en) * | 2020-06-16 | 2020-09-22 | 广州珠江天然气发电有限公司 | Manual barring gear |
| CN111717823A (en) * | 2020-07-02 | 2020-09-29 | 袁乐天 | A hoist emergency braking device |
-
2012
- 2012-06-27 CN CN2012203033380U patent/CN202851857U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511524A (en) * | 2012-06-27 | 2014-01-15 | 甘亚冰 | Diversion gravity braking mechanism, lifting winch and lift transmission board |
| CN106672838A (en) * | 2017-01-06 | 2017-05-17 | 阮潇禾 | Brake device for small building jack |
| CN106672838B (en) * | 2017-01-06 | 2018-09-25 | 阮潇禾 | A kind of small building ground jack brake apparatus |
| CN111396535A (en) * | 2020-04-18 | 2020-07-10 | 江阴市华方新能源高科设备有限公司 | Rotary reducer with torque feedback function |
| CN111692317A (en) * | 2020-06-16 | 2020-09-22 | 广州珠江天然气发电有限公司 | Manual barring gear |
| CN111717823A (en) * | 2020-07-02 | 2020-09-29 | 袁乐天 | A hoist emergency braking device |
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