CN104653735B

CN104653735B - Lifting device

Info

Publication number: CN104653735B
Application number: CN201510082944.2A
Authority: CN
Inventors: 徐淑峰
Original assignee: Individual
Current assignee: RUGAO OUTONG MACHINERY FITTINGS CO Ltd
Priority date: 2015-02-16
Filing date: 2015-02-16
Publication date: 2017-05-03
Anticipated expiration: 2035-02-16
Also published as: CN106821652B; CN106838176B; CN106763594A; CN106821652A; CN106838177B; CN106838177A; CN107061654A; CN106821651A; CN104653735A; CN107061654B; CN106838176A; CN106821651B; CN106763594B

Abstract

The invention discloses a lifting device, and belongs to the technical field of machinery. The lifting device is characterized by comprising a gear rack, a motor, a gear carrier, a shell and a plurality of gears, wherein the gear rack is engaged with a first gear; the output shaft of the motor is connected with a third gear; the third gear is engaged with a second gear; the gear carrier is hinged to a shaft on which the first gear and the second gear are positioned; the motor is fixedly connected with the gear carrier; a fourth gear is arranged below the second gear; the fourth gear is engaged with the second gear; the fourth gear is fixedly connected with a coaxial first star gear; a fifth gear and a sixth gear which are engaged with each other are arranged on the gear carrier; the fifth gear and the sixth gear are respectively and fixedly connected with a coaxial second star gear and a coaxial third star gear. Compared with the prior art, the lifting device has the characteristics that the electricity is saved and the performance is stable.

Description

A kind of lowering or hoisting gear

Technical field

The present invention relates to a kind of mechanical device, particularly a kind of suitable for material lifting, the lowering or hoisting gear of assistance for lifting.

Background technology

Lifting structure is widely used in various mechanical device devices, such as material lifting, assistance for lifting.At present with most Extensive lowering or hoisting gear is electric up-down, wherein causing larger punching to prevent free decrease speed too fast during declining Hit, generally slow down using motor-driven decline and by the way of rubbing.The former causes electric power during decline Loss, after the latter's Long-Time Service can because friction member abrasion and cause the phenomenon of failure.

The content of the invention

The technical assignment of the present invention is for above the deficiencies in the prior art, there is provided a kind of power saving, one kind of stable performance Lowering or hoisting gear.

The present invention solves the technical scheme of its technical problem：A kind of lowering or hoisting gear, it is characterised in that：Including tooth bar, electricity Motivation, tooth rest, housing and multiple gears；Described tooth bar is vertically placed, through housing, described tooth bar and a gear phase Engagement, a gear and No. two gears collectively constitute a duplicate gear, and the axle of duplicate gear is arranged on described housing；It is described Motor output shaft connect No. three gears, No. three gears are meshed with No. two described gears；Described tooth rest and No. one Gear, the axle at No. two gear places are hinged；Described motor is fixedly connected with tooth rest；Four are provided with below No. two gears Number gear, No. four gears are meshed with No. two gears, and No. four gears are fixedly connected a coaxial pocket-wheel；No. four gears and one The axle of number pocket-wheel is arranged on described housing；Described tooth rest is provided with intermeshing No. five gears and No. six teeth Wheel, No. five gears and No. six gears are respectively fixedly connected with coaxial No. two pocket-wheel and No. three pocket-wheels；Three described stars Wheel is located on same perpendicular, and No. two pocket-wheels and No. three pocket-wheel maximum radius sums are less than No. five gears and No. six Gear compound graduation radius of circle sum.

An above-mentioned gear diameter is less than No. two gear diameters, and No. two gear diameters are more than No. four gear diameters, No. four teeth Maximum gauge of the wheel diameter less than a pocket-wheel.

Compared with prior art, the present invention has beneficial effect following prominent：

1st, declined by self gravitation, save electric energy；

2nd, descending speed will not change because of parts depreciation, stable performance；

3rd, descending speed will not the significant change because the body weight of user is different.

Description of the drawings

Fig. 1 is the structural representation of the present invention.

Fig. 2 is the structural representation of embodiments of the invention one.

Fig. 3 is the structural representation of embodiments of the invention two.

Fig. 4 is the structural representation of embodiments of the invention three.

Fig. 5 is the structural representation of embodiments of the invention four.

Fig. 6 is lowering or hoisting gear and stuck apparatus structure schematic diagram in embodiments of the invention four.

Fig. 7 is the structural representation of embodiments of the invention five.

Fig. 8 is the top view of funnel in embodiments of the invention five.

Fig. 9 is lowering or hoisting gear and stuck apparatus structure schematic diagram in embodiments of the invention five.

Figure 10 is the structural representation of embodiments of the invention six.

Figure 11 is lifting device structure schematic diagram in embodiments of the invention six.

Figure 12 be the present invention Figure 10 in A-A to sectional view.

Specific embodiment

With reference to specification drawings and specific embodiments, the present invention is further described.

As shown in figure 1, the present invention is a kind of lowering or hoisting gear, described lowering or hoisting gear specific embodiment includes tooth bar 7, electricity Motivation 9, tooth rest 10, housing 8 and multiple gears, described motor 9, tooth rest 10, housing 8 and multiple gears are located at housing Inside 8.

Described tooth bar 7 is vertically placed, and through housing 8, the connection of tooth bar 7 needs the object of lifting, described tooth bar 7 and Number gear 1 is meshed, and a gear 1 and No. two gears 2 collectively constitute a duplicate gear, and the axle of duplicate gear is arranged on described On housing 8.The described output shaft of motor 9 connects No. three gears 3, and No. three gears 3 are meshed with No. two described gears 2.

The axle that 1, No. two gears 2 of described tooth rest 10 and a gear are located is hinged, by housing 8 come limiting gear The angle of the rotation of frame 10, the position limiting structure of the restriction can be the external shape of housing 8, or the protrusion in housing 8.It is described Motor 9 be fixedly connected with tooth rest 10.Due to the axle rotation that tooth rest 10 is located around No. two gears 2, so rotating through Cheng Zhong, No. three gears 3 can be meshed all the time with No. two gears 2.

The lower section of No. two gears 2 is provided with No. four gears 4, and No. four gears 4 are meshed with No. two gears 2, and No. four gears 4 are fixed A coaxial pocket-wheel 11 of connection.The axle of No. four gears 4 and a pocket-wheel 11 is arranged on described housing 8.Described Tooth rest 10 is provided with intermeshing No. five gears 5 and No. six gears 6, and No. five gears 5 and No. six gears 6 are respectively fixedly connected with No. two pocket-wheels 12 coaxially and No. three pocket-wheels 13.Three described pocket-wheels are located on same perpendicular, and are met： 1. No. two pocket-wheels 12 and No. three maximum radius of pocket-wheel 13（Distance i.e. between sharp corner and the center of circle）Sum is less than No. five gears 5 With No. six reference radius sums of gear 6, to ensure that No. two pocket-wheels 12 will not collide with No. three pocket-wheels 13；2. tooth is worked as When wheel carrier 10 is rotated to lowest point, the wedge angle of the wedge angle of No. two pocket-wheels 12 and No. three pocket-wheels 13 can be with a pocket-wheel 11 wedge angle collides；3. when tooth rest 10 is rotated to highest point, the wedge angle of No. two pocket-wheels 12 and No. three pocket-wheels 13 Wedge angle all can not collide with the wedge angle of a pocket-wheel 11.Under gravity, during nature, tooth rest 10 In the lowest point of its stroke.

Lowering or hoisting gear operation principle：When the object band carry-over bar 7 for needing lifting declines, a gear 1 turns clockwise, Simultaneously No. two gears 2 turn clockwise, and No. two gears 2 drive No. four rotate counterclockwises of gear 4, while an inverse time of pocket-wheel 11 Pin rotates, and a wedge angle of pocket-wheel 11 collides first with No. two wedge angles of pocket-wheel 12, and No. two pocket-wheels 12 turn clockwise, together When No. five gears 5 turn clockwise, drive No. six rotate counterclockwises of gear 6, while No. three rotate counterclockwises of pocket-wheel 13, immediately A number wedge angle of pocket-wheel 11 collides with No. three pocket-wheels 13 just in rotate counterclockwise, inverts No. three pocket-wheels 13, i.e., suitable Hour hands rotate, while No. six gears 6 turn clockwise, No. five rotate counterclockwises of gear 5 are driven, while No. two inverse times of pocket-wheel 12 Pin rotates, and immediately the next wedge angle of a pocket-wheel 11 is collided with No. two pocket-wheels 12 just in rotate counterclockwise ... passes through The collision for going round and beginning again, the rotating speed of a pocket-wheel 11 is controlled in all the time a relatively low speed, that is, realize tooth bar 7 slow The process of decline.Slow drop process is mechanically realizing, without the need for starting motor 9, so as to reduce energy loss；It is slow What drop process was realized by collision rather than friction mode, therefore coefficient of friction will not be caused because of the abrasion of part to change further Descending speed is set to change.

When the object for needing lifting needs to rise, start motor 9, motor 9 drives the dextrorotation of No. three gears 3 Turn, No. three gears 3 drive No. two rotate counterclockwises of gear 2, while a rotate counterclockwise of gear 1, a gear 1 is with carry-over bar 7 slow risings；The torque counterclockwise that simultaneously No. three gears 3 are subject to No. two gears 2 to act on, tooth rest 10 is subject to No. three gears 3 The clockwise torque of effect, the torque drives tooth rest 10 to rotate clockwise in figure at double dot dash line position, now No. two stars Shape wheel 12 no longer collides with No. three pocket-wheels 13 with a pocket-wheel 11, it is to avoid energy loss.

It is to obtain preferably slowing effect in prioritization scheme, a diameter of gear 1 is less than No. two diameters of gear 2, No. two teeth Wheel 2 is with diameter greater than No. four diameters of gear 4, maximum gauge of No. four diameters of gear 4 less than a pocket-wheel 11（That is sharp corner and circle The twice of distance between the heart）.

Present invention could apply in various machine applications, below to be embodied as application.Lifting in following embodiments Apparatus structure is specially the present invention, sees above-mentioned specific embodiment in composition and annexation in it, below its repeating part not Tire out again and state.

Embodiment one is a kind of lifting device.

In embodiment one, in addition to above-mentioned lowering or hoisting gear, also including stuck device.Thing to be lifted, can be operating desk Face, material platform etc., described table top or platform waits lifting thing to be fixedly connected with tooth bar 7.

As shown in Fig. 2 described stuck device includes the first spine bar 15, ratchet 23, the described position of the first spine bar 15 is consolidated Fixed, the flank of tooth of the first spine bar 15 is towards described tooth bar 7.Horizontal blind hole and vertical holes, described water are provided with described tooth bar 7 Tooth bar 7 is located at flat blind hole opening towards in the one side of the first spine bar 15, described vertical holes lower end is connected in horizontal blind hole Portion.The first fixture block 16 is provided with lateral aperture, the first fixture block 16 is hinged near the end of the first spine bar 15 with ratchet 23.First fixture block 16 The first spring 17 is provided with and the cecum of horizontal blind hole between.The first action bars 18, the lower end of the first action bars 18 are provided with vertical holes Inclined-plane is provided with away from the side of the first spine bar 15.The position that the described upper side of the first fixture block 16 contacts with the first described action bars 18 Put and be provided with the triangular groove being adapted with the described upper end of the first action bars 18, it is described adaptable to refer to triangular groove The lower end of the first action bars 18 can just be accommodated.The upper end of vertical holes is provided with the first electromagnet 14, the upper end of the first action bars 18 Magnet 19 is provided with, the polarity of the described upper end of magnet 19 is identical with the polarity of the described lower end of the first electromagnet 14.First operation Side in the middle of bar 18 towards the first spine bar 15 is provided with the first projection 21, cuts with scissors on the position of the first projection 21 on tooth bar 7 Direction finding block 20 is connect, to detect the direction of motion of tooth bar 7, direction finding block 20 has wedge angle towards the side of the first spine bar 15, on direction finding block 20 The second projection 22 is provided with away from the side of the first spine bar 15, the second projection 22 is located at the lower section of the first projection 21.

Tooth bar 7 can be blocked by ratchet 23, the structure of the first spine bar 15, prevent its random whereabouts.First electromagnet 14 After energization, due to homopolar-repulsion, the action bars 18 of magnet 19 and first is moved down.Because tooth bar 7 is metal or other close magnetic Material, after power-off, because magnet 19 can adsorb on the side wall in its place hole, so will not voluntarily move up.First behaviour When making bar 18 and moving down, the first fixture block 16 is pushed to away from first by the collective effect of the lower end inclined-plane of the first action bars 18 and groove The end of spine bar 15, ratchet 23 will no longer block the first spine bar 15, so as to tooth bar 7 can fall；When tooth bar 7 is moved down, pass through The effect of the first spine bar 15 is rotated up can the wedge angle of direction finding block 20, when rising under drive of the tooth bar 7 in motor 9, By the effect of the first spine bar 15, rotate down the wedge angle of direction finding block 20, while the second projection 22 is rotated up, the second projection 22 The first action bars 18 is driven to move up by the first projection 21, the first fixture block 16 discharges, and ratchet 23 can encounter the first spine bar 15, tooth bar 7 can be blocked at any time after stopping so as to motor 9, prevent tooth bar 7 from voluntarily falling.

Embodiment two is a kind of medical aid, can be used for helping pregnant and lying-in women, the old and the weak patient or disabled person to play seat.

As shown in figure 3, the lower end of tooth bar 7 of the lowering or hoisting gear is fixedly connected an annulus 24.The embodiment shell can pacify It is mounted in ceiling or other devices, or with ceiling etc. as shell, therefore Fig. 3 eliminates the concrete shape of shell.

Operating process is as follows：When user sits down, the annulus 24 of the lower end of tooth bar 7, annulus 24 is passed through to be enclosed within armpit arm Lower place, drives user slowly to sit down by this device.When user stands, arm is passed through into the annulus 24 of the lower end of tooth bar 7, Start motor 9, drive user slowly to stand by this device.

Embodiment three is a kind of nursing assistant device, can be used for helping pregnant and lying-in women, the old and the weak patient or disabled person to go to toilet Rise and sit.

As shown in figure 4, described lowering or hoisting gear main part is located at floor lower section, the described upper end of tooth bar 7 passes through floor On hole, expose floor, the upper end of tooth bar 7 is fixedly connected armpit support 25.Likewise, Fig. 4 eliminates the concrete shape of shell.Described The switch of motor 9 is connected by electric wire on the tooth bar 7 of the lower section of armpit support 25 with the circuit of motor 9.

Operating process is as follows：When patient goes to toilet, armpit support 25 is placed in into oxter, in the presence of body weight, lowering or hoisting gear band Dynamic patient slowly sits down.When patient stands, by arm through the armpit support 25 of the lower end of tooth bar 7, start motor 9, by this dress Put drive patient slowly to stand.

Example IV is a kind of tutor auxiliary platform apparatus, for the lifting of screen of imparting knowledge to students, it is also possible to in commercial activity Presentation screen is lifted.

As shown in Figure 5,6, described lowering or hoisting gear is located at the rear of screen 26, fixes with body of wall or other supporting constructions and connects Connect, described tooth bar 7 is fixedly connected with screen 26.

Also include stuck device in the present embodiment, described stuck device includes the second spine bar 27, the second described spine bar 27 are fixedly connected with housing 8, and the flank of tooth of the second spine bar 27 is towards described tooth bar 7.Be provided with described tooth bar 7 horizontal blind hole and Vertical holes, is located at tooth bar 7 towards in the one side of the second spine bar 27 at described horizontal blind hole opening, described vertical holes upper end connects The middle part of the flat blind hole of water flowing, lower ending opening.The second fixture block 28 is provided with lateral aperture, the one end of the second fixture block 28 is exposed from hole, is revealed Go out end upside and be provided with inclined-plane.Second spring 29 is provided between second fixture block 28 and the cecum of horizontal blind hole.Is provided with vertical holes Two action bars 30, the described diameter of the second action bars 30 is equal to the internal diameter of its place vertical holes, and the lower end of the second action bars 30 is exposed, Upper end is provided with inclined-plane away from the side of the second spine bar 27.The described downside of the second fixture block 28 contacts with the second described action bars 30 Position be provided with the triangular groove being adapted with the described upper end of the second action bars 30, it is described adaptable to refer to triangle Groove can just accommodate the upper end of the second action bars 30.

Operating process is as follows：When screen 26 is declined, will press on the second action bars 30, by the second action bars 30 by second Fixture block 28 withdraws, and the second action bars 30 is no longer bounced under the frictional force effect of vertical holes.Under gravity, screen 26 It is slow to decline.

When screen 26 is risen, start motor 9, drive screen 26 slowly to rise by this device.

Embodiment five is a kind of bulk goods hopper, can be used for harbour, the loading of goods yard bulk cargo.

As shown in Figure 7,8, described bulk goods hopper includes funnel 34, bracing frame 35, rubber skirtboard 37, lowering or hoisting gear and card Dead device.

By bracing frame 35, funnel 34 is propped up.The shaft-like buffering of horizontal positioned is provided with the described feed opening of funnel 34 Device 39, effective control goods spills speed and flow, mitigates the impact to having bad luck vehicle tank.Lower end is provided with fixed skirt 36.Described rubber skirtboard 37 is nested in fixed skirt 36.Described rubber skirtboard 37 can be moved up and down by lowering or hoisting gear, The automobile of various differing heights is enabled adaptation to, by fixed skirt 36 and the collective effect of rubber skirtboard 37, fills goods Do not spill over during load, while can block in bulk cargo floating dust, reduce airborne dust, reduce air pollution.

As shown in figure 9, described lowering or hoisting gear shell 8 is fixedly connected with funnel 34.Described tooth bar 7 and described rubber Skirtboard 37 is fixedly connected.

Described stuck device includes the 3rd spine bar 31, and the 3rd described spine bar 31 is fixed with described fixed skirt 36 and connected Connect, the flank of tooth of the 3rd spine bar 31 is towards described tooth bar 7.Horizontal blind hole is provided with described tooth bar 7, described horizontal blind hole is opened At mouthful positioned at tooth bar 7 towards in the one side of the 3rd spine bar 31.The 3rd fixture block 32 is provided with lateral aperture, the 3rd described fixture block 32 is Magnetic fixture block, is specifically as follows magnetic metal material or one end is fixedly connected a magnet, and the 3rd fixture block 32 is near the 3rd spine The end upper side of bar 31 is provided with inclined-plane.The second electromagnet 33 is provided with the cecum of described horizontal blind hole.

After described the second electromagnet 33 is powered, when the second electromagnet 33 is identical to opposite polarity with the 3rd fixture block 32, 3rd fixture block 32 is pushed out by repulsion, can be blocked rubber skirtboard 37 by the 3rd fixture block 32, the structure of the 3rd spine bar 31, prevents Only its random whereabouts.When needing that rubber skirtboard 37 falls, the second electromagnet 33 is passed through into reversing the current, the pole of the second electromagnet 33 Sexually revise, described 3rd fixture block 32 is subject to suction, is sucked in hole, so as to rubber skirtboard 37 can free-falling, drop down onto instantly During correct position, the 3rd fixture block 32 is released by the second electromagnet 33 is passed through into forward current, rubber skirtboard 37 is blocked.

Operating process is as follows：When using, first by running car to feed opening lower section, according to the height of automobile, by weight Power declines rubber skirtboard 37, as goods is piled up in compartment, by lowering or hoisting gear the height of rubber skirtboard 37 is gradually risen, until Loading is completed.

Embodiment six is Medical Devices, specifically for the lifting of sick bed bed board.

As shown in Figure 10,11, the present embodiment includes bed body 40, described lowering or hoisting gear and stuck device.

Described bed body 40 is provided with fixed bed board 44 and lifting bed board 42, and lifting bed board 42 is by a side and fixed bed Plate 44 is hinged.Bed board has crossbeam 43.For ease of narration, the direction at lifting bed board 42 place is set as front, fixed bed board After 44 directions being located are.

The described two ends of connecting rod 41 are hinged respectively with described lifting bed board 42 and tooth bar 7.The described level of tooth bar 7 is put Put.Described crossbeam 43 is provided with along the hole of the fore-and-aft direction of bed body 40 trend, and described tooth bar 7 is passed through from hole.

As shown in figure 12, described stuck device is specially：It is wide along bed body 40 that described tooth bar 7 is respectively provided with one with crossbeam 43 The lateral aperture of degree trend, is provided with the 4th fixture block 46 in the lateral aperture of tooth bar 7, the one end of the 4th fixture block 46 is exposed, and bared end rear side sets There is inclined-plane.The other end of 4th fixture block 46 is provided with the 3rd spring 47.On lateral aperture wherein one end of described crossbeam 43 and crossbeam 43 The hole that tooth bar 7 is located is connected, and the 3rd action bars 45 is provided with the lateral aperture of crossbeam 43, and the one end of the 3rd action bars 45 can encounter tooth Bar 7, the other end exposes from hole, is easy to user to operate.

Operating process is as follows：After the rise of bed board 42 is lifted, the 4th described fixture block 46 is stuck in the lateral aperture on crossbeam 43 It is interior, so as to tooth bar 7 be fixed.When lifting bed board 42 needs to fall, the 3rd action bars 45 is pressed, promotes the 4th fixture block 46, Under gravity, lifting bed board 42 is made slowly to fall by lowering or hoisting gear.

When needing to rise lifting bed board 42, start motor 9, move after described tooth bar 7, by by lowering or hoisting gear band Dynamic bed board slowly rises.

It should be noted that the particular of the present invention is to the present invention have been described in detail, for ability For the technical staff in domain, various obviously change to what it was carried out without departing from the spirit and scope of the present invention Become all within protection scope of the present invention.

Claims

1. a kind of lowering or hoisting gear, it is characterised in that：Including tooth bar, motor, tooth rest, housing and multiple gears；Described tooth Bar is vertically placed, and through housing, described tooth bar is meshed with a gear, and a gear and No. two gears collectively constitute a pair of Connection gear, the axle of duplicate gear is arranged on described housing；Described motor output shaft connects No. three gears, No. three gears It is meshed with No. two described gears；Described tooth rest is hinged with the axle of a gear, No. two gear places；Described electricity Motivation is fixedly connected with tooth rest；No. four gears are provided with below No. two gears, No. four gears are meshed with No. two gears, No. four Gear is fixedly connected a coaxial pocket-wheel；The axle of No. four gears and a pocket-wheel is arranged on described housing；It is described Tooth rest be provided with intermeshing No. five gears and No. six gears, No. five gears and No. six gears are respectively fixedly connected with coaxially No. two pocket-wheels and No. three pocket-wheels；Three described pocket-wheels are located on same perpendicular, and No. two pocket-wheels with No. three pocket-wheel maximum radius sums are less than No. five gears and No. six gear compound graduation radius of circle sums；When tooth rest is rotated to minimum During place, the wedge angle of No. two pocket-wheels can collide with the wedge angle of No. three pocket-wheels with the wedge angle of a pocket-wheel；Work as tooth When wheel carrier is rotated to highest point, the wedge angle of the wedge angle of No. two pocket-wheels and No. three pocket-wheels all can not be with the wedge angle of a pocket-wheel Collide；Under gravity, during nature, tooth rest is located at the lowest point of its stroke.

2. a kind of lowering or hoisting gear according to claim 1, it is characterised in that：A number gear diameter is less than No. two gears Diameter, No. two gear diameters are more than No. four gear diameters, maximum gauge of No. four gear diameters less than a pocket-wheel.