CN208856809U - A kind of crane rope power takeoff - Google Patents
A kind of crane rope power takeoff Download PDFInfo
- Publication number
- CN208856809U CN208856809U CN201821481867.3U CN201821481867U CN208856809U CN 208856809 U CN208856809 U CN 208856809U CN 201821481867 U CN201821481867 U CN 201821481867U CN 208856809 U CN208856809 U CN 208856809U
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- crane
- hinged shaft
- power taking
- pulley
- support
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Abstract
The utility model discloses a kind of crane rope power takeoffs, including wirerope, power taking pulley, pulley spindle, power taking arm, support, hinged shaft and hinged shaft sensor and encoder；Power taking pulley sleeve is loaded on pulley spindle；Wirerope is wound on power taking pulley；Support includes the first support and the second support, and hinged shaft includes the first hinged shaft and the second hinged shaft, and power taking arm includes the first power taking arm and the second power taking arm；First hinged shaft is installed, first power taking arm one end is connected to the other end on pulley spindle and is connected on the first hinged shaft on the first support；Second hinged shaft is installed, second power taking arm one end is connected to the other end on pulley spindle and is connected on the second hinged shaft on the second support；Hinged shaft sensor is mounted on the first hinged shaft or the second hinged shaft and is connected with the master control system of crane；On support is fixed at the top of the column of crane；Power taking pulley chooses the leading block at the top of column；Encoder is mounted on the jib lubbing mechanism of crane and is connected with the master control system of crane.
Description
Technical field
The utility model relates to crane technical field more particularly to a kind of crane rope power takeoffs.
Background technique
Crane often reaches the function of lifting loadage using rope traction movement.Power takeoff is for crane can not
Or lack, its energy real-time monitoring loadage weight prevents loadage from overloading, and can pass through and add up loadage statistical work amount.Steel wire
Lineoutofservice signal pull remains unchanged when wire saws move, and using this feature, only need to measure lineoutofservice signal pull can be obtained lifting capacity.
When wirerope multiplying power is greater than 1 at suspender, lineoutofservice signal pull directly directly can be measured in steel cord ends setting tension sensor；
But when wirerope multiplying power is equal to 1 at suspender, lineoutofservice signal pull can not be directly measured, the radial force of pulley is often measured indirectly
And converse lineoutofservice signal pull.Common design method is to make intermediate pulley both ends steel wire by setting " product " font pulley blocks
Rope clamp angle remains unchanged in the crane course of work, and then setting sensor measures intermediate pulley radial force and converses wirerope
Pulling force is to obtain loadage.It is had the following deficiencies: with upper type
1) not every crane can find existing qualified " product " font pulley blocks, in this case must
At least one set of pulley, which must additionally be increased, remains unchanged the angle of intermediate pulley both ends wirerope；
2) wirerope back-roll situation is certainly existed as long as " product " font pulley blocks, wirerope is as wearing detail, back-roll
Its fatigue properties can be deteriorated, so that rope service-life reduces.
Utility model content
Purpose of the utility model is to overcome the deficiencies of the above prior art and provide a kind of crane rope power taking dresses
It sets, can effectively to solve crane in the prior art need to additionally be arranged " product " font pulley blocks, and " product " font pulley blocks make
The problems such as with will affect the service life of wirerope again.
To achieve the above object, the utility model adopts the following technical solutions:
A kind of crane rope power takeoff, including wirerope, power taking pulley, pulley spindle, power taking arm, support, hinged shaft
With hinged shaft sensor and encoder；
The power taking pulley sleeve is loaded on pulley spindle；The wirerope is wound on power taking pulley；
The support includes the first support and the second support, and the hinged shaft includes the first hinged shaft and the second hinged shaft, described to take
The arm of force includes the first power taking arm and the second power taking arm；
First hinged shaft is installed, described first power taking arm one end is connected on pulley spindle, the other end on first support
It is connected on the first hinged shaft；
Second hinged shaft is installed, described second power taking arm one end is connected on pulley spindle, the other end on second support
It is connected on the second hinged shaft；
The hinged shaft sensor is mounted on the first hinged shaft or the second hinged shaft and is connected with the master control system of crane；
On the support is fixed at the top of the column of crane；The power taking pulley is chosen at the top of the column of crane
Leading block；The encoder is mounted on the jib lubbing mechanism of crane and is connected with the master control system of crane.
Preferably, the jib lubbing mechanism of the crane includes the gear being fixed on the column of crane and one end and lifting
The rack gear of the cantilever crane turning hinge of the machine connected other end and gear engagement in rotation, the encoder are mounted on gear.
Preferably, the support can also be fixed on the big pull rod end of crane, and the power taking pulley accordingly selects
Take the leading block of the big pull rod end of crane；Or the support can also be fixed on the trunk beam end of crane
On, the power taking pulley accordingly chooses the leading block of the trunk beam end of crane；Here, the power taking pulley can be with
The leading block of any position on crane is chosen, but for convenience of installation maintenance, general choose is disposed relative to computer room
The leading block at static place.
Preferably, the encoder chooses absolute type encoder.
Crane rope power takeoff provided by the utility model, the guiding that can be chosen at the top of the column of crane are sliding
The leading block of the trunk beam end of the leading block or crane of the big pull rod end of wheel or crane is sliding as power taking
Wheel, and erection support, hinged shaft and hinged shaft sensor and by hinged shaft sensor and crane at the corresponding power taking pulley chosen
Master control system is connected；And encoder is mounted on the jib lubbing mechanism of crane and is connected with the master control system of crane.
Here, the pulling force of wirerope is converted pulley radial force by power taking pulley passes to pulley spindle, and power taking pulley is made around pulley spindle
Fixed-axis rotation ignores the frictional dissipation at power taking pulley and the rotary inertia of power taking pulley；Then pulley spindle transmits the force to again
Power taking arm, in the case where not considering power taking arm self gravity, power taking arm can be handled as two power bars, i.e. work of the power taking arm to hinged shaft
Power thrusts are along axis hole line direction, and then power is directly transmitted to hinged shaft sensor by power taking arm, and hinged shaft sensor and lifting
The master control system of machine is connected, i.e., the power that the hinged shaft sensor that the master control system of crane can be read is surveyed, then in conjunction with by
The amplitude that the master control system of encoder and crane is recorded and conversed, comprehensive operation, finally by the main control system of crane
The pulling force of system output wirerope.
Compared with prior art, the utility model has the following beneficial effects:
1) existing leading block is utilized, increases " product " font pulley blocks without additional；
2) setting of power taking pulley position flexibly, may be provided at any pulley, but for convenience of installation maintenance, it is general to be arranged
In the place static relative to computer room；
3) it avoids using special " product " font pulley, ensure that the normal service life of wirerope.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the working condition one of the utility model crane rope power takeoff；
Fig. 2 is the structural schematic diagram of the working condition two of the utility model crane rope power takeoff；
Fig. 3 is the structural schematic diagram of the utility model power takeoff.
Wherein: 1, wirerope；A, enter to hold wirerope；B, outlet wirerope；2, power taking pulley；3, pulley spindle；4, power taking arm；
41, the first power taking arm；42, the second power taking arm；5, support；51, the first support；52, the second support；6, hinged shaft；61, the first hinge
Axis；62, the second hinged shaft；7, hinged shaft sensor；8, encoder；10, column；20, jib lubbing mechanism；201, gear；202, rack gear；
30, cantilever crane；40, big pull rod；50, trunk beam.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1-3, a kind of crane rope power takeoff, including wirerope 1, power taking pulley 2, pulley spindle 3, take
The arm of force 4, support 5, hinged shaft 6 and hinged shaft sensor 7 and encoder 8；
The power taking pulley 2 is set on pulley spindle 3；The wirerope 1 is wound on power taking pulley 2；
The support 5 includes the first support 51 and the second support 52, and the hinged shaft 6 includes the first hinged shaft 61 and the second hinged shaft
62, the power taking arm 4 includes the first power taking arm 41 and the second power taking arm 42；
First hinged shaft 61 is installed on first support 51, described first power taking arm, 41 one end is connected on pulley spindle 2,
The other end is connected on the first hinged shaft 61；
Second hinged shaft 62 is installed on second support 52, described second power taking arm, 42 one end is connected on pulley spindle 2,
The other end is connected on the second hinged shaft 62；
The hinged shaft sensor 7 is mounted on the first hinged shaft 61 or the second hinged shaft 62 and the master control system with crane
It is connected；
The support 5 is fixed on 10 top of column of crane；The column 10 that the power taking pulley 2 chooses crane pushes up
Leading block at portion；The encoder 8 is mounted on the master control system on the jib lubbing mechanism 20 of crane and with crane
It is connected；Here, the jib lubbing mechanism 20 of crane includes the gear 201 being fixed on the column 10 of crane and one end and crane
30 turning hinge of cantilever crane be connected the rack gear 202 of the other end and 201 engagement in rotation of gear, the encoder 8 is mounted on gear 201.
Preferably, the support 5 can also be fixed on 40 end of big pull rod of crane, and the power taking pulley 2 is corresponding
Choose the leading block of 40 end of big pull rod of crane in ground；Or the support 5 can also be fixed on the trunk of crane
On 50 end of beam, the power taking pulley 2 accordingly chooses the leading block of 50 end of trunk beam of crane；Here, described
Power taking pulley 2 can choose the leading block of any position on crane, but for convenience of installation maintenance, it is general to choose setting
In the leading block relative to the static place of computer room.
Preferably, the encoder 8 chooses absolute type encoder.
Crane rope power takeoff provided by the utility model, can choose the guiding at the top of the column 10 of crane
The leading block conduct of 50 end of trunk beam of the leading block or crane of 40 end of big pull rod of pulley or crane
Power taking pulley 2, and erection support 5, hinged shaft 6 and hinged shaft sensor 7 and by hinged shaft sensor at the corresponding power taking pulley 2 chosen
7 are connected with the master control system of crane；And encoder 8 is mounted on the master on the jib lubbing mechanism 20 of crane and with crane
Control system is connected.
Specifically, when work, the wirerope on power taking pulley 21 will be wound on according to the position difference relative to power taking pulley 2
It is denoted as into end wirerope a and outlet wirerope b, wherein will enter to hold the angle of wirerope a and outlet wirerope b to be denoted as Φ, and incites somebody to action
Enter to hold wirerope a and horizontal square to angle be denoted as Φ1, by outlet wirerope b and horizontal square to angle be denoted as Φ2, will
The amplitude for being recorded and being conversed by the master control system of encoder 8 and crane is denoted as R；Then, Φ, Φ1、Φ2With R meet with
Minor function relationship:
Wherein, work as Φ1Or Φ2When for constant, corresponding function is normal function, i.e. Φi≡ constant, wherein i=1 or 2；
Work as Φ1And Φ2When being constant, Φ ≡ constant.
Here, the pulling force of wirerope 1 is converted pulley radial force by power taking pulley 2 passes to pulley spindle 3, and power taking pulley
2 rotate in fixed axis around pulley spindle 3, ignore the frictional dissipation at power taking pulley and the rotary inertia of power taking pulley；Then pulley spindle 3
Power taking arm 4 is transmitted the force to again, and in the case where not considering 4 self gravity of power taking arm, power taking arm 4 can be handled as two power bars, i.e.,
Power taking arm 4 is along axis hole line direction to the force direction of hinged shaft, and then power is directly transmitted to hinged shaft sensor 7 by power taking arm 4,
And hinged shaft sensor 7 is connected with the master control system of crane, and the hinged shaft sensor 7 that the master control system of crane is read is surveyed
Power be denoted as F, then in conjunction with being recorded by the master control system of encoder 8 and crane and the amplitude R that converses, comprehensive operation,
Finally by the pulling force T of the master control system output wirerope of crane, i.e.,
T=T ' (F, Φ1,Φ2) or T=T (F, R)
Finally acquiring lifting capacity Q is
Q=n*T-G
Wherein, n is wirerope suspension centre number at suspender, and G is suspender self weight.
Compared with prior art, the utility model has the following beneficial effects:
1) existing leading block is utilized, increases " product " font pulley blocks without additional；
2) setting of power taking pulley position flexibly, may be provided at any pulley, but for convenience of installation maintenance, it is general to be arranged
In the place static relative to computer room；
3) it avoids using special " product " font pulley, ensure that the normal service life of wirerope.
In the description of the present invention, it should be understood that the orientation of the instructions such as term "top", " end ", " entering ", " out "
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this
The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (5)
1. a kind of crane rope power takeoff, which is characterized in that including wirerope, power taking pulley, pulley spindle, power taking arm,
Support, hinged shaft and hinged shaft sensor and encoder；
The power taking pulley sleeve is loaded on pulley spindle；The wirerope is wound on power taking pulley；
The support includes the first support and the second support, and the hinged shaft includes the first hinged shaft and the second hinged shaft, the power taking arm
Including the first power taking arm and the second power taking arm；
First hinged shaft is installed, described first power taking arm one end is connected on pulley spindle, other end connection on first support
On the first hinged shaft；
Second hinged shaft is installed, described second power taking arm one end is connected on pulley spindle, other end connection on second support
On the second hinged shaft；
The hinged shaft sensor is mounted on the first hinged shaft or the second hinged shaft and is connected with the master control system of crane；
On the support is fixed at the top of the column of crane；The power taking pulley chooses the guiding at the top of the column of crane
Pulley；The encoder is mounted on the jib lubbing mechanism of crane and is connected with the master control system of crane.
2. crane rope power takeoff as described in claim 1, which is characterized in that the jib lubbing mechanism packet of the crane
The gear being fixed on the column of crane and one end is included to be connected with the cantilever crane turning hinge of crane the other end and gear engagement in rotation
Rack gear, the encoder is mounted on gear.
3. crane rope power takeoff as described in claim 1, which is characterized in that the power taking pulley replaces with selection
The leading block of the big pull rod end of crane, the support correspondence are fixed on the big pull rod end of crane.
4. crane rope power takeoff as described in claim 1, which is characterized in that the power taking pulley replaces with selection
The leading block of the trunk beam end of crane, the support correspondence are fixed on the trunk beam end of crane.
5. crane rope power takeoff as claimed in claim 1 or 2, which is characterized in that the encoder is chosen absolute
Formula encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821481867.3U CN208856809U (en) | 2018-09-11 | 2018-09-11 | A kind of crane rope power takeoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821481867.3U CN208856809U (en) | 2018-09-11 | 2018-09-11 | A kind of crane rope power takeoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208856809U true CN208856809U (en) | 2019-05-14 |
Family
ID=66417483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821481867.3U Active CN208856809U (en) | 2018-09-11 | 2018-09-11 | A kind of crane rope power takeoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208856809U (en) |
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2018
- 2018-09-11 CN CN201821481867.3U patent/CN208856809U/en active Active
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