CN107473097A - A kind of new lifting mechanism of bridge crane - Google Patents
A kind of new lifting mechanism of bridge crane Download PDFInfo
- Publication number
- CN107473097A CN107473097A CN201710804355.XA CN201710804355A CN107473097A CN 107473097 A CN107473097 A CN 107473097A CN 201710804355 A CN201710804355 A CN 201710804355A CN 107473097 A CN107473097 A CN 107473097A
- Authority
- CN
- China
- Prior art keywords
- lifting mechanism
- induction motor
- bridge crane
- hand member
- reel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
- B66C13/23—Circuits for controlling the lowering of the load
- B66C13/26—Circuits for controlling the lowering of the load by ac motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses a kind of new lifting mechanism of bridge crane,Including AC induction motor and frame,The right-hand member axis connection of the AC induction motor brake,The left end of the AC induction motor is connected by flange with left socle,And also it is connected in the left end of AC induction motor by screw with frame,Synchronizing jugged small pulley is slidably fitted with the output shaft of the AC induction motor,The synchronizing jugged small pulley is arranged on the inside of left socle,And the left end of synchronizing jugged small pulley is provided with cog belt,The lower end of the cog belt is intertwined and connected and has big belt wheel,The right-hand member axis connection of the big belt wheel has rotating shaft,The right-hand member of the rotating shaft is connected by shaft coupling with the key axle inside wave producer,Whole device is that a kind of decelerator gearratio is big,Motor input torque is small,Lifting motor and speed reducer used in hoisting it is in light weight,Transmission efficiency,The overall compact lifting mechanism of structure,And it is easily installed,It is practical.
Description
Technical field
The present invention relates to new lifting mechanism technical field, the new lifting mechanism of specially a kind of bridge crane.
Background technology
In crane, be referred to as lifting mechanism to lift or decline the mechanism of goods, lifting mechanism be in crane most
Important, most basic mechanism, its structural shape directly influence the overall dimensions and weight of monkey, its work it is good
The bad service behaviour for directly affecting whole crane, the structure shape that traditional beam type, bridge crane hoisting mechanism mainly use
Formula has two kinds, and this arrangement advantage is that design is simple, and the matching selection of each parts is also more convenient, but its shortcoming is a lot：
(1) each parts support respectively, and this requires trolley frame to have enough strength and stiffness so that trolley frame
Deadweight increase, and the installation respectively and adjustment of each parts are also cumbersome；
(2) because motor is parallel with cylinder axis so that overall structure is loose, the total area of trolley frame also compared with
Greatly, the spatial volume of lifting mechanism is big；
(3) reel length is longer, and L/D ratio is big, the low easy fracture of long and thin drum strength.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of new lifting mechanism of bridge crane, is
A kind of decelerator gearratio is big, and motor input torque is small, in light weight, the transmission efficiency of lifting motor and speed reducer used in hoisting, knot
The overall compact lifting mechanism of structure, and be easily installed, be practical, it can effectively solve the problem that the problem of background technology proposes.
The technical solution adopted for the present invention to solve the technical problems is：A kind of new lifting mechanism of bridge crane,
Including AC induction motor and frame, the right-hand member axis connection of the AC induction motor brake, the AC induction motor
Left end be connected by flange with left socle, and be also connected in the left end of AC induction motor by screw with frame, institute
State and synchronizing jugged small pulley is slidably fitted with the output shaft of AC induction motor, the synchronizing jugged small pulley is arranged on left branch
The inside of frame, and the left end of synchronizing jugged small pulley is provided with cog belt, between the synchronizing jugged small pulley and cog belt
Sealed using seal closure, the lower end of the cog belt, which is intertwined and connected, big belt wheel, and the right-hand member axis connection of the big belt wheel has
Rotating shaft, the right-hand member of the rotating shaft are connected by shaft coupling with the key axle inside wave producer, and the wave producer is fixedly mounted
In the inside of reel, the right-hand member of the reel is connected by spool shaft with bearing, and the bearing is fixedly mounted on the interior of frame
On wall.
As a kind of preferable technical scheme of the present invention, the both ends of the wave producer are connected by bearing with drive mechanism
Connect.
As a kind of preferable technical scheme of the present invention, the drive mechanism includes flexbile gear and steel wheel, the drive of the flexbile gear
Moved end axis connection bearing, and the output end of the flexbile gear is connected by rotary shaft with steel wheel, and the outer surface of the steel wheel passes through
Screw is connected with mandrel interior wall.
As a kind of preferable technical scheme of the present invention, the left end shaft of the flexbile gear is connected to shaft coupling.
As a kind of preferable technical scheme of the present invention, limit switches are fixedly mounted in the front of the brake.
As a kind of preferable technical scheme of the present invention, the drive mechanism right flank is by end cap with being separated by inside reel
Open.
As a kind of preferable technical scheme of the present invention, rubber layer is additionally provided between the left socle and reel.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) driving-chain of the invention simplifies, and eliminates multiple shaft couplings, makes compact-sized, efficiency raising, and using new
The type kind of drive：Speed end uses synchronous cog belt, then adds Harmonic Gears, and transmission efficiency, transmission stability is good, can subtract
The vibration and impact of few raising operation process；
(2) harmonic gear drive mechanism itself the small volume light weight inside wave producer of the invention, is installed on reel
It is interior, reduce gear reduction unit and reduction case, significantly reduce the weight of lifting mechanism, also reduce the axle of lifting mechanism
To length.
(3) gearratio for the Harmonic Gears that the present invention uses is big, and bearing capacity is high, it is therefore possible to use rotating speed is more
Motor high, torque is smaller, make the volume of motor, weight reduces and price reduction.The model of other brake also can phase
It should reduce.Reduce lifting mechanism width, quality further mitigates.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the driving mechanism structure schematic diagram of the present invention.
In figure：1- brakes；2- AC induction motors；3- output shafts；4- seal closures；5- cog belts；6- big belt wheels；7- turns
Axle；8- key axles；9- shaft couplings；10- bearings；11- end caps；12- reels；13- spool shafts；14- bearings；15- rubber layers；16- is limited
Bit switch；17- wave producers；18- drive mechanisms；19- flexbile gears；20- rotary shafts；21- steel wheels；22- frames；23- left socles；
The synchronizing jugged small pulleys of 24-.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.
The direction and position term that the present invention is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", " interior ", "
Outside ", " side " etc., only it is direction and position with reference to annexed drawings.Therefore, the direction and position term used is to illustrate
And understand the present invention, and it is not used to the limitation present invention.
Embodiment：
As shown in figure 1, the invention provides a kind of new lifting mechanism of bridge crane, including AC induction motor 2
With frame 22, the right-hand member axis connection of the AC induction motor 2 brake 1, and the front fixed installation of the brake 1 is limited
Bit switch 16, the left end of the AC induction motor 2 are connected by flange with left socle 23, and in AC induction motor 2
Left end is also connected by screw with frame 22, and rubber layer 15, the friendship are additionally provided between the left socle 23 and reel 12
Flow and be slidably fitted with synchronizing jugged small pulley 24 on the output shaft 3 of asynchronous machine 2, the synchronizing jugged small pulley 24 is arranged on a left side
The inside of support 23, and the left end of synchronizing jugged small pulley 24 is provided with cog belt 5, the synchronizing jugged small pulley 24 and tooth
Sealed between shape band 5 using seal closure 4, the lower end of the cog belt 5, which is intertwined and connected, big belt wheel 6, the big belt wheel 6
Right-hand member axis connection has rotating shaft 7, and the right-hand member of the rotating shaft 7 is connected by shaft coupling 9 with the key axle 8 inside wave producer 17, institute
The inside that wave producer 17 is fixedly mounted on reel 12 is stated, the right-hand member of the reel 12 is connected by spool shaft 13 with bearing 14
Connect, the bearing 14 is fixedly mounted on the inwall of frame 22.
The both ends of the wave producer 17 are connected by bearing 10 with drive mechanism 18, and the drive mechanism 18 includes soft
Wheel 19 and steel wheel 21, the drive end axle of the flexbile gear 19 are connected to bearing 10, and the output end of the flexbile gear 19 passes through rotary shaft 20
It is connected with steel wheel 21, the outer surface of the steel wheel 21 is connected by screw with the inwall of reel 12, the left end of the flexbile gear 19
Axis connection shaft coupling 9, and the right flank of drive mechanism 18 is by end cap 11 with being spaced inside reel 12.
Synchronizing jugged small pulley 24 is installed, by cog belt 5 by power on the output shaft 3 of the AC induction motor 2
It is transmitted to big belt wheel 6, the rotating shaft 7 of harmonic wave drive speed reducer of the drive installation of big belt wheel 6 inside the wave producer 17 in reel 12
Rotate, the rotating shaft 7 drives the wave producer 17 of harmonic drive to rotate by key axle 8, so as to pass through flexbile gear 19 and firm gear 21
Engagement drives firm gear 21 to rotate, and because firm gear 21 is coupled by bolt with the cylinder of reel 12, and the cylinder left end of reel 12 passes through end
Lid 11 and bearing 10 are supported on left end support, and right-hand member is by being pivotally supported on reel right support abutment, and the rotation of such firm gear 21 is just
Rotational speed with movable reel 12 to require.Period flexbile gear 19 is connected firmly so as to keep by coupling spindle 9 and key axle 8 with left socle 23
It is static, and harmonic drive 18 is enclosed in reel 12 by end cap 11, is easy to lubricate and is sealed, the transmission of cog belt 5 passes through
Seal closure 4 is sealed, and prevents from producing friction between machinery, and cause zero device failure, whole device design becomes crane
Lightness, miniaturization, it is particularly suitable for bridge, beam cranes lifting mechanism.
In summary, the main characteristic of the invention lies in that：
(1) driving-chain of the invention simplifies, and eliminates multiple shaft couplings, makes compact-sized, efficiency raising, and using new
The type kind of drive：Speed end uses synchronous cog belt, then adds Harmonic Gears, and transmission efficiency, transmission stability is good, can subtract
The vibration and impact of few raising operation process；
(2) harmonic gear drive mechanism itself the small volume light weight inside wave producer of the invention, is installed on reel
It is interior, reduce gear reduction unit and reduction case, significantly reduce the weight of lifting mechanism, also reduce the axle of lifting mechanism
To length.
(3) gearratio for the Harmonic Gears that the present invention uses is big, and bearing capacity is high, it is therefore possible to use rotating speed is more
Motor high, torque is smaller, make the volume of motor, weight reduces and price reduction.The model of other brake also can phase
It should reduce.Reduce lifting mechanism width, quality further mitigates.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Claims (7)
- A kind of 1. new lifting mechanism of bridge crane, it is characterised in that：Including AC induction motor (2) and frame (22), The right-hand member axis connection of the AC induction motor (2) brake (1), and the left end of the AC induction motor (2) passes through flange It is connected with left socle (23), and is also connected in the left end of AC induction motor (2) by screw with frame (22), the friendship Synchronizing jugged small pulley (24), the synchronizing jugged small pulley (24) are slidably fitted with the output shaft (3) of stream asynchronous machine (2) The inside of left socle (23) is arranged on, and the left end of synchronizing jugged small pulley (24) is provided with cog belt (5), the synchronous gear Sealed between shape small pulley (24) and cog belt (5) using seal closure (4), the lower end of the cog belt (5) is intertwined and connected There is big belt wheel (6), the right-hand member axis connection of the big belt wheel (6) has rotating shaft (7), and the right-hand member of the rotating shaft (7) passes through shaft coupling (9) The key axle (8) internal with wave producer (17) is connected, and the wave producer (17) is fixedly mounted on the inside of reel (12), institute The right-hand member for stating reel (12) is connected by spool shaft (13) with bearing (14), and the bearing (14) is fixedly mounted on frame (22) Inwall on.
- A kind of 2. new lifting mechanism of bridge crane according to claim 1, it is characterised in that：The wave producer (17) both ends are connected by bearing (10) with drive mechanism (18).
- A kind of 3. new lifting mechanism of bridge crane according to claim 1, it is characterised in that：The drive mechanism (18) flexbile gear (19) and steel wheel (21) are included, the drive end axle of the flexbile gear (19) is connected to bearing (10), the flexbile gear (19) Output end be connected by rotary shaft (20) with steel wheel (21), the outer surface of the steel wheel (21) passes through screw and reel (12) Inwall is connected.
- A kind of 4. new lifting mechanism of bridge crane according to claim 3, it is characterised in that：The flexbile gear (19) Left end shaft be connected to shaft coupling (9).
- A kind of 5. new lifting mechanism of bridge crane according to claim 1, it is characterised in that：The brake (1) limit switches (16) are fixedly mounted in front.
- A kind of 6. new lifting mechanism of bridge crane according to claim 2, it is characterised in that：The drive mechanism (18) right flank is spaced by end cap (11) and reel (12) inside.
- A kind of 7. new lifting mechanism of bridge crane according to claim 1, it is characterised in that：The left socle (23) rubber layer (15) is additionally provided between reel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804355.XA CN107473097A (en) | 2017-09-08 | 2017-09-08 | A kind of new lifting mechanism of bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804355.XA CN107473097A (en) | 2017-09-08 | 2017-09-08 | A kind of new lifting mechanism of bridge crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107473097A true CN107473097A (en) | 2017-12-15 |
Family
ID=60585222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710804355.XA Pending CN107473097A (en) | 2017-09-08 | 2017-09-08 | A kind of new lifting mechanism of bridge crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107473097A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358064A (en) * | 2018-01-24 | 2018-08-03 | 南京工业大学 | A kind of self-powered tower crane rotary hanger device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4038981A1 (en) * | 1990-12-06 | 1992-06-11 | Man Ghh Logistics | Frequency changer for AC crane motors - uses equivalent circuit data to compute torque and to avoid approaching pull=out torque |
| CN203021231U (en) * | 2012-12-18 | 2013-06-26 | 重庆起重机厂有限责任公司 | Bridge crane and lifting mechanism thereof |
| CN103523690A (en) * | 2013-05-31 | 2014-01-22 | 洛阳建浩重工机械有限公司 | Hoisting mechanism with built-in harmonic gear |
-
2017
- 2017-09-08 CN CN201710804355.XA patent/CN107473097A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4038981A1 (en) * | 1990-12-06 | 1992-06-11 | Man Ghh Logistics | Frequency changer for AC crane motors - uses equivalent circuit data to compute torque and to avoid approaching pull=out torque |
| CN203021231U (en) * | 2012-12-18 | 2013-06-26 | 重庆起重机厂有限责任公司 | Bridge crane and lifting mechanism thereof |
| CN103523690A (en) * | 2013-05-31 | 2014-01-22 | 洛阳建浩重工机械有限公司 | Hoisting mechanism with built-in harmonic gear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358064A (en) * | 2018-01-24 | 2018-08-03 | 南京工业大学 | A kind of self-powered tower crane rotary hanger device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171215 |