CN106976818A

CN106976818A - Crank lift

Info

Publication number: CN106976818A
Application number: CN201710376991.7A
Authority: CN
Inventors: 宋烨; 金海涛; 白平
Original assignee: JIANGSU GAOKE LOGISTICS TECHNOLOGY Co Ltd
Current assignee: JIANGSU GAOKE LOGISTICS TECHNOLOGY Co Ltd
Priority date: 2017-05-24
Filing date: 2017-05-24
Publication date: 2017-07-25

Abstract

The invention provides a kind of crank lift, including crane, elevating mechanism and support frame, crane upper end has horizontal jacking end face, and lower end has the first connection end；Elevating mechanism is located at below crane, with the second connection end corresponding with the first connection end；The elevating mechanism includes drive shaft, motor and crank；Support frame is arranged on below elevating mechanism, supports elevating mechanism.It is an advantage of the current invention that crank lift includes drive part, support frame, crane, crank mechanism, support frame and crane postwelding are integrally machined, and install simple；Cam is changed to crank, cam is contacted with the wheel rim of crane is improved to rolling friction by sliding friction, so greatly reduces the side force of crane；The drive shaft of motor direct-drive both sides, synchronism is good, and transmission efficiency is high.

Description

Crank lift

Technical field

The present invention relates to elevator technology field, more particularly to crank lift.

Background technology

It is double stretch a pallet fork and pick and place goods from conveyer when, in order to not allow pallet fork to be interfered with conveyer, it is necessary to will be loaded with The certain height of the pallet jacking of goods, then a kind of jacking apparatus arise at the historic moment.It is traditional it is general with hydraulic elevating platform come Realize, however as modernization intelligent storage in the fast development of pharmaceuticals industry, this inevitable oil leak of hydraulic means etc. Shortcoming can not be applied in pharmaceutical manufacturer.

Prior art proposes a kind of cam lifting body, is rotated using motor driving cam, and cam is arranged on respective convex On wheel shaft, the distance of each point on cam wheel rim away from center of rotation is different, so that jacking crane, but on crane with cam Contact for a support wheel, two-wheeled is contacted by wheel rim, and the motion state in motion process between two-wheeled is unstable, produces cunning Dynamic friction, crane is moved up and down with cam rotation；Motor by the one of camshaft of chain wheel drive, the camshaft further through Sprocket wheel is driven in another camshaft, above-mentioned technology, although cam can realize the up and down motion of crane, make compared with For complexity, and it is matched using support wheel, the stability of motion is poor, built on the sand；Due to producing sliding friction, long-play Serious wear afterwards, motor only directly drives a wherein camshaft, and another camshaft is indirect driving, and energy transfer efficiency is not Height, increases excessive chain, relatively complicated.

Therefore, how research and development improvement is carried out for above-mentioned existing existing shortcoming, actually makes great efforts to grind needed for relevant industry In view of this target of hair, designer of the present invention, is the idea of think of and creation, is designed then with experience for many years, through multi-party Inquire into and study sampling test, and repeatedly amendment improvement, it is to release the present invention.

The content of the invention

(1) technical problem to be solved

In view of above-mentioned technical problem, the invention provides a kind of use crank principle, is directly driven by a motor drive shaft Crank lift.

(2) technical scheme

The invention provides a kind of crank lift, including：

Crane, upper end has horizontal jacking end face, and lower end has the first connection end；

Elevating mechanism, below crane, with the second connection end corresponding with the first connection end, the elevating mechanism bag Include：

Drive shaft, at least extends and drive shaft parallel to each other including a pair along first level direction, and this pair of drive shaft It is symmetrical arranged on the axis of symmetry；

Motor, where being arranged on a pair of drive shaft axis of symmetry in vertical plane；The drive shaft passes through two by the motor Bar chain drives respectively；

Crank, is respectively and fixedly installed to drive shaft two ends end face and is radially extended along drive shaft；The crank end is installed There is connecting bracket, second connection end is located in connecting bracket；

Support frame, is arranged on below elevating mechanism, supports elevating mechanism.

In some embodiments of the invention, the crank end is connected with camshaft bearing follower, the camshaft bearing Follower one end is fixed on crank end, and the other end is horizontally extending roller end, the connecting bracket lower end side With the slot opened up in the horizontal direction, the roller end is plugged in the slot.

In some embodiments of the invention, there are some guiding mechanisms between the crane and support frame, it is described to lead It is included in vertically disposed linear axis and the linear bearing being set on linear axis between support frame and crane to mechanism.

In some embodiments of the invention, the guiding mechanism is arranged in the both sides of drive shaft.

In some embodiments of the invention, second connection end is the flange end positioned at connecting bracket upper end, described First connection end is flange end corresponding with the second connection end.

In some embodiments of the invention, chain sprocket is arranged with the motor output shaft, the chain sprocket includes set Cylinder, bushing core has on the through hole of the power supply machine output shaft insertion opened up along its axis, all sides of the sleeve and had together Two sprocket wheels that axle is set.

In some embodiments of the invention, the motor output shaft coordinates with chain sprocket for keyway.

In some embodiments of the invention, there is a covering sprocket wheel on the end face of the one end of the chain sprocket away from motor Bolt is installed, the bolt is connected through baffle plate and with motor output shaft axial end on the baffle plate of disk through hole, the baffle plate.

In some embodiments of the invention, support frame as described above has along the confession drive shaft that the second horizontal direction extends and installed Lower supporting rod, second horizontal direction and first level direction be orthogonal, and the drive shaft passes through bearing block crossbearer arranged side by side On this pair of lower supporting rod.

In some embodiments of the invention, the bearing block side has regulation bearing, and the regulation bearing includes

Fixed seat, is fixedly mounted on lower support bar, and positioned at bearing block side；

Regulating bolt, is arranged in fixed seat, its end offsets with bearing block along the second horizontal direction；

Nut, is set in regulating bolt.

In some embodiments of the invention, the motor center line is staggeredly arranged with drive axis in vertical direction.

(3) beneficial effect

It can be seen from the above technical proposal that the present invention at least has the advantages that one of them：

(1) crank lift includes drive part, support frame, crane, crank mechanism, and support frame and crane postwelding are whole Body is machined, and installs simple；Cam is changed to crank, cam contacts with the wheel rim of crane and is improved to complete rolling friction, this Sample greatly reduces the side force of crane；The drive shaft of motor direct-drive both sides, synchronism is good, and transmission efficiency is high；

(2) the crank lift largely uses some standard components, and interchangeability is good, cheap, and precision is high；Crank end Using Cam Follower, lifting process cam follower is rolling friction in slot, and this is greatly lowered side force, subtracts Few bearing is by excessive side force；

(3) because guiding mechanism is linear bearing, guiding mechanism is rolling friction in lifting process, greatly reduces mill Damage, extend the service life of bearing；

(4) guiding mechanism is symmetricly set on the both sides of driving bearing, it is ensured that crane will not be tilted to both sides；

(5) crane and elevating mechanism, installation easy to disassemble are connected using flange；

(6) chain sprocket on motor output shaft, can be connected with two chain connections, baffle plate and spiral shell is utilized again using key Bolt is further fixed so that chain sprocket will not produce axial float and the rotation around axial direction；

(7) being supported using lower supporting rod has the bearing block installed for drive shaft, bearing block side on drive shaft, lower support bar With regulation bearing, bearing block position can be finely adjusted, and then adjust the elastic of chain；

(8) in the case where motor output shaft and drive shaft vertical direction are staggeredly arranged, chain produces certain tension force, Improve the situation of the sagging relaxation because of chain self gravitation to a certain extent.

Brief description of the drawings

Fig. 1 is the front view of the embodiment of the present invention.

Fig. 2 is the left view of the embodiment of the present invention.

Fig. 3 is the elevating mechanism of the embodiment of the present invention and the top view of support frame.

Fig. 4 is detail view at the A of the embodiment of the present invention.

Fig. 5 is the single drive shaft of the embodiment of the present invention and its schematic diagram of annex.

Fig. 6 is the motor and chain sprocket schematic diagram of the embodiment of the present invention.

【Main element symbol description of the present invention】

10th, crane；11st, jacking end face；21st, connecting bracket；

211st, slot；22nd, bearing is adjusted；221st, regulating bolt；

222nd, nut；223rd, fixed seat；23rd, chain；

24th, motor；241st, motor output shaft；25th, guiding mechanism；

251st, linear axis；252nd, linear bearing；26th, crank；

27th, camshaft bearing follower；271st, roller end；28th, drive shaft；

29th, chain sprocket；291st, sprocket wheel；292nd, sleeve；

293rd, flat key；294th, bolt；295th, baffle plate；

30th, support frame；31st, lower supporting rod；32nd, bearing block；

Y, first level direction；X, the second horizontal direction D, the axis of symmetry.

Embodiment

The invention provides a kind of crank lift.Hydraulic-driven is replaced using electric drive, the pollution of oil leak is reduced, and should Elevator structure is compact, and using being rolling friction between crank mechanism, with crane, side force is small, and guiding mechanism is all used Sliding friction is improved to rolling friction by standard component linear bearing, the characteristics of making full use of linear bearing, and machine operation is smooth, Efficiency high.

For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference Accompanying drawing, the present invention is described in more detail.

There is provided crank lift in one exemplary embodiment of the present invention.As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, The present invention includes crane 10, elevating mechanism and support frame 30 successively from top to bottom；

Each part of the present embodiment is described in detail individually below.

Crane 10, upper end has horizontal jacking end face 11, and for placing pallet, lower end has one group first and connected Connect end；

Elevating mechanism, positioned at the lower section of crane 10, connects with one group of second connection end corresponding with the first connection end, first It is corresponding flange end of working in coordination to connect end and the second connection end.

The elevating mechanism includes：

Drive shaft 28, with symmetrically arranged a pair on axis of symmetry D, and every drive shaft 28 is along first level direction Y is extended；

Motor 24, where being arranged on the axis of symmetry D of this pair of drive shaft 28 in vertical plane；A pair of drive shafts 28 are by motor 24 Driven respectively by two chains 23；

Crank 26, is respectively and fixedly installed to a pair of two ends end faces of drive shaft 28 and is radially extended along drive shaft 28；Crank 26 End is provided with connecting bracket 21, and the second connection end is located in connecting bracket 21；

Support frame 30, is arranged on below elevating mechanism, supports elevating mechanism.

Crank lift crane 10 and the postwelding of support frame 30 are integrally machined, and install simple, should compared with original technology Cam is changed to crank 26 by lift, and structure simplifies, and action is more reliable, is easy to calculate.

Camshaft bearing follower 27 is connected with the end of crank 26, the one end of camshaft bearing follower 27 is fixed on the end of crank 26 End, the other end is the roller end 271 extended in the horizontal direction to outside crank 26, and the lower end side of connecting bracket 21 has along level side To the slot 211 opened up, roller end 271 is plugged in the slot 211, has bearing in roller end 271.With original technology phase Than the wheel face of cam and crane support wheel coordinates the rolling friction for being improved to bearing and slot 271, so greatly reduces liter The side force of frame 10 drops.

There are some guiding mechanisms 25, guiding mechanism 25 is arranged in the two of drive shaft 28 between crane 10 and support frame 30 Side, guiding mechanism 25 includes the linear axis 251 being vertically arranged and the linear bearing 252 being set on linear axis 251.Due to this dress Lateral load very little is put, therefore guiding mechanism 25 makes full use of linear bearing 252 all using standard component linear bearing 252 Feature, realizes rolling friction.

As shown in fig. 6, being arranged with chain sprocket 29 on the output shaft 241 of motor 24, motor output shaft 241 drives chain sprocket 29, Chain 23 is driven by chain sprocket 29 again；Chain sprocket 29 includes sleeve 292, and its center, which has along the power supply machine that its axis is opened up, to be exported There are two sprocket wheels 291 being coaxially disposed with chain sprocket, each sprocket wheel on the through hole that axle 241 is inserted, all sides of chain sprocket 29 291 coordinate with a chain 23 respectively, while driving two drive shafts 28.

There is double locking mechanism between motor output shaft 241 and chain sprocket 29, one is, motor output shaft 241 and chain Wheel disc 29 coordinates for keyway, and having on chain sprocket through-hole wall has flat key 293 on keyway, the axle side of output shaft 241, the second is, Have on the end face of the one end of chain sprocket 29 away from motor 24 and installed on the baffle plate 295 of a covering through hole of chain sprocket 29, baffle plate 295 One bolt 294, bolt 294 is connected through baffle plate 295 and with the axial end of motor output shaft 241；The structure of dual fixation, chain sprocket Fixation between 29 and motor output shaft 241.

Support frame 30 be a rectangular frame, including along the second horizontal direction X extend confession drive shaft 28 install a pair under Strut 31 and a pair of the side braces extended along first level direction Y, the second horizontal direction X and first level direction Y are orthogonal, A pair of drive shafts 28 are by the crossbearer arranged side by side of bearing block 32 on this pair of lower supporting rod 31, and guiding mechanism 25 is arranged in side brace, branch Strut 30 ensure that the installation of drive shaft 28 and guiding mechanism 25, compact conformation.

As shown in figure 4, the side of bearing block 32 has regulation bearing 22, for the fine setting to the position of bearing block 32, regulation branch Seat 22 includes

Fixed seat 223, is fixedly mounted on lower support bar 31, and positioned at the side of bearing block 32；

Regulating bolt 221, is arranged in fixed seat 223, its end offsets with bearing block 32 along the second horizontal direction X；

Nut 222, is set in regulating bolt 221, as bearing block 32, positioned at the homonymy 223 of fixed seat.

During using the regulation bearing 22, the regulating bolt 221 is rotated, bolt end is propped up bearing block 32, bearing block 32 Certain displacement is produced, the elastic purpose of regulation chain 23 is reached, when bearing block 32 reaches the position of needs, utilizes nut 222 are tightened in regulating bolt 221 in fixed seat 223.

The center line of motor 24 is staggeredly arranged with the axis of drive shaft 28 in vertical direction, chain 23 is produced certain tension force, Overcome to a certain extent chain 23 because of gravity bagged drawback.

So far, the present embodiment is described in detail combined accompanying drawing.According to above description, those skilled in the art There should be clear understanding to the present invention.

It should be noted that in accompanying drawing or specification text, the implementation for not illustrating or describing is affiliated technology Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously It is not limited only to various concrete structures, shape or the mode mentioned in embodiment.

It should also be noted that, the demonstration of the parameter comprising particular value can be provided herein, but these parameters are without definite etc. In corresponding value, but analog value can be similar in acceptable error margin or design constraint.The side mentioned in embodiment Only it is the direction of refer to the attached drawing such as " on ", " under ", "front", "rear", "left", "right" to term, not for limiting this The protection domain of invention.In addition, unless specifically described or the step of must sequentially occur, the order of above-mentioned steps, which has no, to be limited to It is listed above, and can change or rearrange according to required design.And above-described embodiment can be based on design and reliability Consider, be mixed with each other collocation using or used with other embodiment mix and match, i.e., technical characteristic not in be the same as Example can be with Freely form more embodiments.

Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., should be included in the guarantor of the present invention Within the scope of shield.

Claims

1. a kind of crank lift, it is characterised in that including：

Elevating mechanism, below crane, with the second connection end corresponding with the first connection end, the elevating mechanism includes：

Drive shaft, at least including a pair along first level direction extend and drive shaft parallel to each other, and this pair of drive shaft on The axis of symmetry is symmetrical arranged；

Motor, where being arranged on a pair of drive shaft axis of symmetry in vertical plane；The drive shaft passes through two chains by the motor Bar drives respectively；

Crank, is respectively and fixedly installed to drive shaft two ends end face and is radially extended along drive shaft；The crank end is provided with company Support is connect, second connection end is located in connecting bracket；

2. a kind of crank lift according to claim 1, it is characterised in that the crank end is connected with camshaft bearing Follower, described camshaft bearing follower one end is fixed on crank end, and the other end is horizontally extending roller end, institute Stating connecting bracket lower end side has the slot opened up in the horizontal direction, and the roller end is plugged in the slot.

3. a kind of crank lift according to claim 1, it is characterised in that have between the crane and support frame Some guiding mechanisms, the guiding mechanism is included between support frame and crane vertically disposed linear axis and is set in straight line Linear bearing on axle.

4. a kind of crank lift according to claim 1, it is characterised in that the guiding mechanism is arranged in drive shaft Both sides.

5. a kind of crank lift according to claim 1, it is characterised in that second connection end is positioned at connection branch The flange end of frame upper end, first connection end is flange end corresponding with the second connection end.

6. a kind of crank lift according to claim 1, it is characterised in that be arranged with sprocket wheel on the motor output shaft Disk, the chain sprocket includes sleeve, and bushing core has the through hole of the power supply machine output shaft insertion opened up along its axis, the set There are two sprocket wheels being coaxially disposed on all sides of cylinder.

7. a kind of crank lift according to claim 6, it is characterised in that the motor output shaft is key with chain sprocket Groove coordinates.

8. a kind of crank lift according to claim 6, it is characterised in that the one end of the chain sprocket away from motor There is the baffle plate of a covering chain sprocket through hole on end face, bolt is installed on the baffle plate, the bolt through baffle plate and with electricity Machine output shaft end face is connected.

9. a kind of crank lift according to claim 1, it is characterised in that support frame as described above has along the second level side The lower supporting rod installed to the confession drive shaft of extension, second horizontal direction and first level direction are orthogonal, the driving Axle is by bearing block crossbearer arranged side by side on this pair of lower supporting rod.

10. a kind of crank lift according to claim 9, it is characterised in that the bearing block side has regulation branch Seat, the regulation bearing includes

Nut, is set in regulating bolt.

11. a kind of crank lift according to claim 1, it is characterised in that the motor center line and drive shaft axle Line is staggeredly arranged in vertical direction.