CN208869196U - A kind of lifting mechanism of the crane for frequency control - Google Patents
A kind of lifting mechanism of the crane for frequency control Download PDFInfo
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- CN208869196U CN208869196U CN201821578069.2U CN201821578069U CN208869196U CN 208869196 U CN208869196 U CN 208869196U CN 201821578069 U CN201821578069 U CN 201821578069U CN 208869196 U CN208869196 U CN 208869196U
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- reel
- axle body
- cabinet
- driving motor
- lifting mechanism
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Abstract
The utility model relates to crane technical fields, in particular disclose a kind of lifting mechanism of crane for frequency control, including frame body, retarder, reel, driving motor and the frequency-variable controller being electrically connected with driving motor；Retarder includes cabinet, the first axle body for being rotatably dispose in cabinet and the second axle body, the ratio wheel group for being installed in the first axle body and the second axle body respectively, driving motor is installed on the outside of cabinet, one end of the second axle body stretches out cabinet and is rotatably dispose in frame body, and one end of reel is connect with one end that the second axle body stretches out cabinet；In use, the outside winding of reel is used to go up and down the rope body of object；Driving motor is directly installed on cabinet, retarder the second axle body and reel are rigidly connected, so that the first axle body is collinearly connect with motor, the second axle body and reel, the two is avoided to influence the connection reliability between drive shaft system because of coaxiality deviation, the transmission efficiency between motor and retarder is promoted simultaneously, so that construction is more compact, reduces the size of occupied space.
Description
Technical field
The utility model relates to crane technical fields, in particular disclose a kind of raising of crane for frequency control
Mechanism.
Background technique
10 tons of overhead and gantry cranes or more of lifting mechanism is generally hoist type lifting mechanism at present, by drive motor
Power is provided, since drive motor starting (braking) has impact, manufactures installation error, supporting platform (vehicle frame) loaded deformation
The problems such as etc. will cause transmission connection decentraction, central axis deviation, seriously affect the connection reliability of drive shaft system；Therefore it is setting
When counting the transmission connection between motor output shaft and the axis body of retarder, the especially compensatory design of attention transmission connection, one
As need using with compensation performance shaft coupling and matching the methods of relative configurations (such as floating axle), from axial direction, radial direction and deflection
Angle direction is attached deviation compensation.But the compensatory design of transmission connection not only will increase accounting for for entire lifting mechanism
With space size, it can also make lifting mechanism excessively too fat to move huge, installation effectiveness is also extremely low, and use is extremely inconvenient.
Utility model content
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide one kind for becoming
The lifting mechanism of the crane of frequency control, avoids motor from influencing to be driven because of coaxiality deviation with retarder, retarder and reel
Connection reliability between shafting, while the transmission efficiency between motor and retarder is promoted, so that construction is more compact, reduces
The size of occupied space；Stall start and the braking of driving motor are realized using frequency-variable controller, so that lifting mechanism operation is more
Add steady.
To achieve the above object, the lifting mechanism of a kind of crane for frequency control of the utility model, including frame
Body, retarder, reel, driving motor and the frequency-variable controller being electrically connected with driving motor；The retarder includes cabinet, turns
The dynamic the first axle body for being set to cabinet and the second axle body, the deceleration for being installed in the first axle body and the second axle body respectively and being fitted to each other
Wheel group, the first axle body are spaced each other and are arranged in parallel with the second axle body, and ratio wheel group is located in the box body, and driving motor is installed in case
The output shaft of external side, driving motor is connect with the first axle body, and the output shaft of the first axle body and driving motor is collinearly arranged, and second
One end of axis body stretches out cabinet and is rotatably dispose in frame body, and one end that one end and the second axle body of reel stretch out cabinet connects
It connects, the other end of reel is rotatably dispose in frame body, and the outside of reel is used for the rope body in the winding external world.
Preferably, the retarder further includes being located in the box body box coupling, the both ends of box coupling connect respectively
Connect one end of the first axle body and the output shaft of driving motor.
Preferably, the ratio wheel group includes the gear ring for being set to the first axle body, gear ring and the first axle body are integral type structure
It makes, the first axle body is equipped with external splines portion close to one end of driving motor, and one end of box coupling is equipped with for engaging external splines
The internal spline circle in portion, the keyway that the other end of box coupling is equipped with accommodating hole and is connected to accommodating hole, the output of driving motor
Aixs cylinder protrudes into accommodating hole, and the output shaft of driving motor is installed with the key body for protruding into keyway.
Preferably, the lifting mechanism further includes brake, a distal process of output shaft of the first axle body far from driving motor
Cabinet is stretched out, brake is installed in one end of output shaft of the first axle body far from driving motor, and brake is located at outside cabinet.
Preferably, the second axle body includes hollow shaft and solid shafting, hollow shaft is rotatably dispose in cabinet, solid shafting
One end is installed in hollow shaft, and the other end of solid shafting stretches out cabinet and is rotatably dispose in frame body, and the other end of solid shafting is used
In connection reel.
Preferably, the reel is equipped with spiral rope groove, the outer surface of spiral rope groove self reel is recessed to be formed, and spiral rope groove is enclosed
The pivot center spiral of winding reel is arranged, and spiral rope groove is for being installed with the rope body being sticked in the outer surface of reel.
Preferably, the other end of the reel is equipped with third axis body, third axis body is rotatably dispose in frame body, third axis body with
The second axle body is collinearly arranged, and the line between third axis body and the second axle body is overlapped with the central axis of reel, third axis body
Free end is connected with height limiter.
The utility model has the beneficial effects that in use, the outside winding of reel is used to go up and down the rope body of object；It will driving electricity
Machine is directly installed on the outside of cabinet, so that the axis body of retarder and the output shaft of motor collinearly connect, avoids the two because of concentricity
Deviation and influence the connection reliability between drive shaft system, while the transmission efficiency between motor and retarder is promoted, so that structure
Make size that is more compact, reducing occupied space；Change reduction gearbox and reel type of attachment, increases reliability, the installation of connection
With the convenience of maintenance；Stall start and the braking of driving motor are realized using frequency-variable controller, so that lifting mechanism operation is more
Add steady.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the decomposition texture schematic diagram of the utility model；
Fig. 3 is the first axle body of the utility model and the structural schematic diagram of box coupling.
Appended drawing reference includes:
1-frame body 2-retarder, 3-reel
4-driving motor 5-cabinet, 6-the first axle bodies
7-the second axle body 8-box coupling, 9-gear rings
11-external splines portion 12-internal spline, 13-accommodating holes of circle
14-keyway 15-brake, 16-hollow shafts
17-solid shafting 18-spiral rope groove, 19-third axis bodies
21-height limiters.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to examples and drawings further
Explanation, the content that embodiment refers to not is restriction to the utility model.
Shown in please referring to Fig.1 to Fig.3, a kind of lifting mechanism of crane for frequency control of the utility model, packet
Frame body 1, retarder 2, reel 3, driving motor 4 and the frequency-variable controller being electrically connected with driving motor 4 are included, frame body 1 is according to knot
Structure function is made of Metal Material Welding, and in the present embodiment, frame body 1 is substantially rectangular；The retarder 2 includes cabinet 5, turns
The dynamic the first axle body 6 being arranged on cabinet 5 and the second axle body 7, be respectively installed on the first axle body 6 on the second axle body 7 and that
This ratio wheel group being used cooperatively can rotate setting transition axis body, at this time ratio wheel certainly according to actual needs, on cabinet 5
It organizes including being separately positioned on the first axle body 6, multiple gears on the second axle body 7, on transition axis body, the first axle body 6 and second
Axis body 7 is spaced each other and is arranged in parallel, and ratio wheel group is located in cabinet 5, and driving motor 4 is installed directly on 5 outside of cabinet, drives
The output shaft of dynamic motor 4 is connect with the first axle body 6, and the first axle body 6 and the output shaft of driving motor 4 are collinearly arranged, compared to drive
Dynamic motor 4 is mounted on frame body 1, and the deformation because of frame body 1 is avoided to cause between the first axle body 6 and the output shaft of driving motor 4
Concentricity deviates, and one end of the second axle body 7 stretches out cabinet 5 and is rotatably arranged on frame body 1, and branch is provided on frame body 1
Fagging, the second axle body 7 stretch out one end of cabinet 5 via bearing hinge connection on the supporting plate, one end of reel 3 and the second axle body 7
The one end for stretching out cabinet 5 links together, and the other end of reel 3 is rotatably arranged on frame body 1, the outside of reel 3 be used for around
If extraneous rope body, the release of the reel 3 rope body of rotation or rope body wind and then realizes rope body to the liter of extraneous object
Drop.
In actual use, the outside winding of reel 3 is used to go up and down the rope body of object, and rope body is used for far from one end of reel 3
The hook of object is held in articles or connection for hook；Driving motor 4 is directly installed on cabinet 5, so that retarder 2
Axis body is collinearly connect with the output shaft of driving motor 4, avoid because frame body 1 deform both cause coaxiality deviation due to influence to pass
Connection reliability between moving axis system, while the transmission efficiency between driving motor 4 and retarder 2 is promoted, so that construction is more
Size that is compact, reducing occupied space；Frequency-variable controller realizes the frequency control to driving motor 4, utilizes frequency-variable controller reality
The stall start of existing driving motor 4 and braking keep lifting mechanism operation more steady, and 4 output torque of monitoring driving motor is big
It is small；Before frequency conversion control technique, since electric motor starting (braking) has impact, installation error, supporting platform (vehicle frame) are manufactured
Loaded deformation etc. will cause the problems such as transmission connection decentraction, central axis deviation, and the connection for seriously affecting drive shaft system is reliable
Property.
The retarder 2 further includes the box coupling 8 in the cabinet 5, and the both ends of box coupling 8 are separately connected the
One end of one axis body 6 and the output shaft of driving motor 4.Between box coupling 8 and one end of the first axle body 6, box coupling 8
It is rigid connection (such as key connection etc.) between the output shaft of driving motor 4, middle motor utilizes tool compared to the prior art
There is the shaft coupling of compensation performance to connect with retarder 2, keeps the operation of retarder 2 more reliable and more stable, transmission efficiency is higher.
The ratio wheel group includes the gear ring 9 being arranged on the first axle body 6, and gear ring 9 and the first axle body 6 are integral type structure
It makes, the first axle body 6 is provided with external splines portion 11 on one end of driving motor 4, and box coupling 8 is substantially in hollow circuit cylinder
Shape, one end of box coupling 8 are equipped with the internal spline circle 12 for engaging external splines portion 11, and the other end of box coupling 8 is set
Be equipped with accommodating hole 13 and the keyway being connected to accommodating hole 13 14, it is preferable that accommodating hole 13 run through box coupling 8, keyway 14 with
The centerline axis parallel of accommodating hole 13 is arranged, and the output shaft of driving motor 4 protrudes into accommodating hole 13, the output of driving motor 4
Axis is installed with the key body (not shown) for protruding into keyway 14, the side wall of keyway 14 for contradicting key body, key body with
Keyway 14 is interference fit.
The lifting mechanism further includes brake 15, and one end of output shaft of the first axle body 6 far from driving motor 4 stretches out
Cabinet 5, brake 15 are installed on one end of output shaft of the first axle body 6 far from driving motor 4, and brake 15 is located at cabinet 5
Outside.Via the Position Design of brake 15, in the installation process of brake 15, other accessories of lifting mechanism are on the one hand avoided
It damages brake 15, on the other hand promotes the installation effectiveness of brake 15.In actual use, according to 4 frequency control of driving motor
Signal realizes zero speed braking.
The second axle body 7 includes hollow shaft 16 and solid shafting 17, and ratio wheel includes the biography for being mounted on 16 outside of hollow shaft
Moving gear (not shown), the transmission gear on transmission gear and the first axle body 6 on hollow shaft 16 form speed reduction, in
Substantially in hollow cylindric, hollow shaft 16 is rotatably arranged in cabinet 5 empty axis 16, in the present embodiment, the both ends of hollow shaft 16
Respectively via two bearing hinge connections on cabinet 5, one end of solid shafting 17 is installed in hollow shaft 16, it is preferable that solid shafting 17
One end and hollow shaft 16 between via key connection, the other end of solid shafting 17 stretches out cabinet 5 and is rotatably arranged on frame body 1
On, the other end of solid shafting 17 is for being connected to reel 3.Ensure the pivot center of the second axle body 7 and the pivot center of reel 3
Be overlapped, avoid because between the two pivot center there are coaxiality deviation due to influence connection reliability between drive shaft system.
The reel 3 is equipped with spiral rope groove 18, and the outer surface of 18 self reel 3 of spiral rope groove is recessed to be formed, spiral rope groove 18
Pivot center spiral around reel 3 is arranged, and spiral rope groove 18 is for being installed with the rope body being sticked in the outer surface of reel 3.It utilizes
The side wall block of spiral rope groove 18 is sticked the rope body on the outer surface of reel 3, prevents the rope being sticked on the outer surface of reel 3
Body is mobile relative to reel 3 and object to be hoisted is caused to shake.
The other end of the reel 3 is equipped with third axis body 19, and third axis body 19 is rotatably arranged on frame body 1, third axis body
19 are collinearly arranged with the second axle body 7, and the line between third axis body 19 and the second axle body 7 is overlapped with the central axis of reel 3, the
The free end of three-axis body 19 is connected with height limiter 21.The limitation to 3 turnning circle of reel is realized using height limiter 21,
And then restriction of the realization to lifting mechanism stroke, it prevents 3 inordinate rotation of reel and damages the object being elevated.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (7)
1. a kind of lifting mechanism of the crane for frequency control, including frame body, retarder, reel, driving motor and with drive
The frequency-variable controller of dynamic electrical connection of motor；It is characterized by: the retarder includes cabinet, is rotatably dispose in the first of cabinet
Axis body and the second axle body, the ratio wheel group for being installed in the first axle body and the second axle body respectively and being fitted to each other, ratio wheel group are located at
In cabinet, driving motor is installed on the outside of cabinet, and the output shaft of driving motor is connect with the first axle body, the first axle body and driving electricity
The output shaft of machine is collinearly arranged, and one end of the second axle body stretches out cabinet and is rotatably dispose in frame body, one end of reel and second
Axis body stretches out one end connection of cabinet, and the other end of reel is rotatably dispose in frame body, and the outside of reel is for the winding external world
Rope body.
2. the lifting mechanism of the crane according to claim 1 for frequency control, it is characterised in that: the retarder
It further include being located in the box body box coupling, the both ends of box coupling are separately connected one end and the driving motor of the first axle body
Output shaft.
3. the lifting mechanism of the crane according to claim 2 for frequency control, it is characterised in that: the ratio wheel
Group includes that the gear ring for being set to the first axle body, gear ring and the first axle body construct for integral type, and the first axle body is close to driving motor
One end is equipped with external splines portion, and one end of box coupling is equipped with the internal spline circle for engaging external splines portion, box coupling
The keyway that the other end is equipped with accommodating hole and is connected to accommodating hole, the output shaft of driving motor protrude into accommodating hole, driving motor
Output shaft be installed with the key body for protruding into keyway.
4. the lifting mechanism of the crane according to claim 1 for frequency control, it is characterised in that: the lifting machine
Structure further includes brake, and one end of output shaft of the first axle body far from driving motor stretches out cabinet, and brake is installed in first
One end of output shaft of the axis body far from driving motor, brake are located at outside cabinet.
5. the lifting mechanism of the crane according to claim 1 for frequency control, it is characterised in that: second axis
Body includes hollow shaft and solid shafting, and hollow shaft is rotatably dispose in cabinet, and one end of solid shafting is installed in hollow shaft, solid shafting
The other end stretch out cabinet and be rotatably dispose in frame body, the other end of solid shafting is for connecting reel.
6. the lifting mechanism of the crane according to claim 1 for frequency control, it is characterised in that: the reel is set
There is spiral rope groove, the outer surface of spiral rope groove self reel is recessed to be formed, and spiral rope groove is arranged around the pivot center spiral of reel,
Spiral rope groove is for being installed with the rope body being sticked in the outer surface of reel.
7. the lifting mechanism of the crane according to claim 1 for frequency control, it is characterised in that: the reel
The other end is equipped with third axis body, and third axis body is rotatably dispose in frame body, and third axis body is collinearly arranged with the second axle body, third axis body
Line between the second axle body is overlapped with the central axis of reel, and the free end of third axis body is connected with height limiter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578069.2U CN208869196U (en) | 2018-09-26 | 2018-09-26 | A kind of lifting mechanism of the crane for frequency control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578069.2U CN208869196U (en) | 2018-09-26 | 2018-09-26 | A kind of lifting mechanism of the crane for frequency control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208869196U true CN208869196U (en) | 2019-05-17 |
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ID=66468970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821578069.2U Active CN208869196U (en) | 2018-09-26 | 2018-09-26 | A kind of lifting mechanism of the crane for frequency control |
Country Status (1)
| Country | Link |
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| CN (1) | CN208869196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019327A (en) * | 2018-09-26 | 2018-12-18 | 东莞市台冠起重机械设备有限公司 | A kind of lifting mechanism of the crane for frequency control |
-
2018
- 2018-09-26 CN CN201821578069.2U patent/CN208869196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019327A (en) * | 2018-09-26 | 2018-12-18 | 东莞市台冠起重机械设备有限公司 | A kind of lifting mechanism of the crane for frequency control |
| CN109019327B (en) * | 2018-09-26 | 2024-05-14 | 东莞市台冠起重机械设备有限公司 | Lifting mechanism of crane for variable frequency control |
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