CN207248135U - Winding plant and crane - Google Patents
Winding plant and crane Download PDFInfo
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- CN207248135U CN207248135U CN201721132679.5U CN201721132679U CN207248135U CN 207248135 U CN207248135 U CN 207248135U CN 201721132679 U CN201721132679 U CN 201721132679U CN 207248135 U CN207248135 U CN 207248135U
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- rotary encoder
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Abstract
Technical field of crane equipment is the utility model is related to, more particularly to a kind of winding plant and crane.Winding plant provided by the utility model, it includes winching barrel, winching barrel is used for lay winding wire ropes and controls steel wire rope folding and unfolding, and, it further includes detection device, detection device includes bus-type rotary encoder, and bus-type rotary encoder is used to detect emitting rate and releasing length of the steel wire rope under winching barrel drive.The detection output of length can be realized to steel wire rope emitting rate and released to the utility model at the same time, and measurement accuracy is higher by setting bus-type rotary encoder in winding plant.
Description
Technical field
Technical field of crane equipment is the utility model is related to, more particularly to a kind of winding plant and crane.
Background technology
Winding plant is the important component of crane, when carrying out lifting operation, is wound in elevator by folding and unfolding and rolls
Steel wire rope on cylinder is adapted to the requirement for height under different operating modes.The important state parameter moved as elevator, steel wire rope
Emitting rate and releasing length are the bases that elevator is servo-actuated and excessive release of steel wire rope defencive function is realized.However, based on current volume
Device is raised, the emitting rate of steel wire rope can not be usually known at the same time and release length, and steel wire rope emitting rate or releasing length
Measurement accuracy it is relatively low, wherein especially steel wire rope release measurement of length precision it is relatively low.
Fig. 1 shows a kind of existing winding plant.As shown in Figure 1, the winding plant, it includes winching barrel 1 ' and sets
The motor rotational speed sensor 2 ' and overdischarging protector 3 ' in the axially opposite sides of winching barrel 1 ' are put, wherein：Motor rotary speed passes
Sensor 2 ' is used for the rotating speed for detecting hoist motor, and coordinates with the controller of crane, and the emitting rate of steel wire rope is calculated；
Overdischarging protector 3 ' is used for realization excessive release of steel wire rope defencive function, prevents steel wire rope from all discharging, it sets in steel wire rope residue
Alarm signal is sent during fixing turn (being usually 3 circles), in order to stop putting rope action, ensures the security of lifting operation.
Since said motor speed probe 2 ' can only send pulse signal, its pulse signal sent must via controller
After after-treatment, the emitting rate of steel wire rope can be just obtained, and can not directly detect the emitting rate for obtaining steel wire rope, because
This, there are accumulated error, steel wire rope emitting rate measurement accuracy is relatively low.
And above-mentioned overdischarging protector 3 ' is totally independent of the setting of motor rotational speed sensor 2 ', it, which is only capable of identification steel wire rope, is
The no remaining setting number of turns, and the real-time of steel wire rope can not be detected and release length, in the still unnecessary setting number of turns of the steel wire rope residue number of turns
When, the releasing length of steel wire rope is unknown.
As it can be seen that the existing winding plant can only realize the detection to steel wire rope emitting rate, but accuracy of detection is relatively low.And
And, it is necessary to special overdischarging protector is separately provided to prevent excessive release of steel wire rope.
Further, can be to the steel wire rope that is calculated even if controller is arranged to based on the existing winding plant
Emitting rate is further processed, and obtains the releasing length of steel wire rope, but depends on emitting rate due to releasing length information
Measurement, and the measurement accuracy of emitting rate is relatively low, therefore, the steel wire rope of acquisition release length remain on there are measurement accuracy compared with
The problem of low.
Utility model content
A technical problem to be solved in the utility model is：Existing winding plant, can not usually realize pair at the same time
Steel wire rope emitting rate and releasing measurement of length, and steel wire rope emitting rate or releasing measurement of length precision are relatively low.
In order to solve the above-mentioned technical problem, the utility model first aspect provides a kind of winding plant, it includes elevator
Roller, winching barrel is used for lay winding wire ropes and controls steel wire rope folding and unfolding, also, it further includes detection device, detection device bag
Include bus-type rotary encoder, bus-type rotary encoder be used to detecting emitting rate of the steel wire rope under winching barrel drive and
Release length.
Alternatively, bus-type rotary encoder is absolute value bus-type rotary encoder；And/or bus-type rotary coding
Device is multi-turn bus-type rotary encoder.
Alternatively, winding plant includes being used for the drum drive for driving winching barrel to rotate, bus-type rotary coding
Device is drivingly connected with drum drive.
Alternatively, drum drive includes hoisting speed reducer, and bus-type rotary encoder connects with hoisting speed reducer driving
Connect.
Alternatively, detection device further includes intermediate transmission mechanism, bus-type rotary encoder by intermediate transmission mechanism with
Hoisting speed reducer is drivingly connected.
Alternatively, intermediate transmission mechanism includes axle sleeve and connecting shaft, and bus-type rotary encoder passes through connecting shaft and axle sleeve
It is drivingly connected, axle sleeve is drivingly connected with hoisting speed reducer.
Alternatively, detection device further includes same axis adjustment device, is used to adjust bus-type rotary coding with axis adjustment device
The concentricity of device and hoisting speed reducer.
Alternatively, flexible mounting plate is included with axis adjustment device, bus-type rotary encoder is installed on flexible mounting plate；
And/or including shaft coupling with axis adjustment device, bus-type rotary encoder is drivingly connected by shaft coupling and hoisting speed reducer.
Alternatively, detection device further includes case, and bus-type rotary encoder is arranged on casing interior.
The utility model second aspect additionally provides a kind of crane, it includes the winding plant of the utility model.
The utility model can at the same time be realized and steel wire rope is put by setting bus-type rotary encoder in winding plant
Go out speed and release the detection output of length, and measurement accuracy is higher.
By the way that the exemplary embodiment of the utility model is described in detail referring to the drawings, the utility model its
Its feature and its advantage will be made apparent from.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
Put, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 shows the structure diagram of winding plant in the prior art.
Fig. 2 shows the structure diagram of the detection device of one embodiment winding plant of the utility model.
Fig. 3 shows the view of winching barrel lay winding wire ropes in embodiment illustrated in fig. 1.
In figure：
1 ', winching barrel；2 ', motor rotational speed sensor；3 ', overdischarging protector；
1st, winching barrel；
2nd, detection device；21st, bus-type rotary encoder；22nd, connecting shaft；23rd, axle sleeve；24th, flexible mounting plate；25th, cover
Shell；26th, flange；
3rd, steel wire rope.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.Based on the embodiment in the utility model, those of ordinary skill in the art are not having
Have carry out creative work under the premise of all other embodiments obtained, shall fall within the protection scope of the present invention.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In the description of the utility model, it is to be understood that limit zero using the word such as " first ", " second "
Part, it is only for easy to be distinguished to corresponding parts, such as there is no Stated otherwise, above-mentioned word does not have particular meaning,
Therefore it is not intended that limitation to scope of protection of the utility model.
In the description of the utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " horizontal,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or position relationship be normally based on orientation or position shown in the drawings
Relation is put, description the utility model is for only for ease of and simplifies description, in the case where not making conversely explanation, these nouns of locality
Do not indicate that and imply that the device of meaning or element there must be specific orientation or with specific azimuth configuration and operation, because
This is it is not intended that limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component in itself
Wide is inside and outside.
Fig. 2-Fig. 3 shows one embodiment of the utility model winding plant.With reference to Fig. 2-3, the utility model is carried
The winding plant of confession, including winching barrel 1, winching barrel 1 are used for lay winding wire ropes 3 and control 3 folding and unfolding of steel wire rope, also, also
Including detection device 2, detection device 2 includes bus-type rotary encoder 21, and bus-type rotary encoder 21 is used to detect steel wire
Emitting rate and releasing length of the rope 3 under the drive of winching barrel 1.
Different from speed probe or other encoders, bus-type rotary encoder itself is integrated with signal acquisition, number
According to processing and the multiple functions such as fault diagnosis, its can the information such as output speed, length and acceleration at the same time, and measurement accuracy compared with
Height, can be normally reached more than 1000 times of speed probe measurement accuracy.
Bus-type rotary encoder 21 is applied in winding plant by the utility model, and using it to being wound in elevator rolling
Steel wire rope 3 on cylinder 1 is detected, it is possible to achieve detection exports while to 3 emitting rate of steel wire rope and releasing length, and surveys
Accuracy of measurement is higher, easy to more accurately know the motion state of steel wire rope 3, realizes more convenient and safe and reliable lifting operation
Process.
The releasing of steel wire rope 3 can be known in real time by being additionally, since the bus-type rotary encoder 21 based on the utility model
Length, and hence it is also possible to the overdischarging protector being separately provided in the prior art is saved, and only need to be in bus-type rotary encoder
21 ropes of putting for stopping winching barrel 1 when detecting the residue setting number of turns of steel wire rope 3 act, you can realize corresponding Cross prevention work(
Energy.As it can be seen that the detection device of the utility model can also integrate steel wire rope motion state detection function and Cross prevention function
In one, make the structure of winding plant simpler compact.
In the utility model, bus-type rotary encoder 21 can further use absolute value bus-type rotary coding
Device.Due to being determined different from the output of incremental encoder, absolute value type encoder by the mechanical location of photoelectric code disk, every time simultaneously
The non-rotationally-varying increment of output, but plus-minus calculating is carried out on the basis of original position, without remembering, without looking for reference point,
And without counting always, only need to directly it be read out when needing and obtaining information, from the shadow of power failure and external disturbance etc.
Ring, therefore, the utility model uses absolute value bus-type rotary encoder, can further improve the anti-interference of detection process
And measured steel wire rope releases length and the data reliability of emitting rate, the testing result of higher precision is obtained.
In addition, in the utility model, bus-type rotary encoder 21 can also further be rotated using multi-turn bus-type
Encoder.Due to can directly measure positional information during multi-turn rotation relative to single-ring encoder, encoder, rotate
During more than a circle, without being calculated again from zero, therefore, the utility model uses multi-turn bus-type rotary encoder, can be effective
Expand measurement range and simultaneously simplify installation and debugging difficulty, so as to fulfill length is released to steel wire rope and emitting rate is more convenient and higher
The detection of precision.
Wherein it is highly preferred that the bus-type rotary encoder 21 of the utility model can be the rotation of multi-turn absolute value bus-type
Encoder, the advantages of can so gathering more ring encoders, absolute value type encoder and bus-type encoder, is realized to steel wire
3 emitting rates of restricting are more convenient with releasing length and high-precision measurement.
The utility model is described further with reference to the embodiment shown in Fig. 2-3.
As shown in Figures 2 and 3, in this embodiment, winding plant includes winching barrel 1, elevator driving device (in figure not
Show) and detection device 2, wherein：Winching barrel 1 is used for lay winding wire ropes 3；Elevator driving device is used to drive winching barrel 1
Rotate, to control 3 folding and unfolding of steel wire rope, realize the lifting to weight, it generally includes hoisting speed reducer and hoist motor etc.；Detection
Device 2 is used to detect emitting rate and releasing length of the steel wire rope 3 under the drive of winching barrel 1.
As shown in figure 3, close and rule the winding on winching barrel 1 of steel wire rope 3.When the wirerope-winding of first layer is complete
Bi Shi, steel wire rope continue to wind into the second layer, until all wirerope-windings finish.Under normal conditions, steel wire rope 3 can be
Multilayer and not disorder cable are wound on winching barrel 1.
Since winching barrel 1 and elevator driving device can directly use existing structure, it is no longer excessive to its herein
Description, only emphasis illustrates detection device 2 below.
As shown in Fig. 2, the detection device 2 of the embodiment include bus-type rotary encoder 21, connecting shaft 22, axle sleeve 23,
Case 25 and flange 26.
As shown in Figure 2, in this embodiment, bus-type rotary encoder 21 is arranged on inside case 25.Due to case 25
It is located at outside bus-type rotary encoder 21, certain protective effect can be played to bus-type rotary encoder 21, therefore,
Case 25 is set, helps to extend the service life of bus-type rotary encoder 21, improves the functional reliability of detection device 2.
External electrical interface (not shown) can be set on case 25, in order to realize the electric connection of bus-type rotary encoder 21
Connect.
Flange 26 is arranged on unlimited one end of case 25 (being left end in fig. 2).Case 25 is carried out using flange 26
Closing, can make case 25 be internally formed confined space, further enhance the protection to bus-type rotary encoder 21.The flange
26 can be directly anchored to axial one end of winching barrel 1 by itself circumferentially distributed multiple threaded hole, not with winching barrel 1
Rotate, remain static.
And in order to realize the detection to 3 motion state of steel wire rope, in this embodiment, bus-type rotary encoder 21 uses
Multi-turn absolute value bus-type rotary encoder, and be drivingly connected by connecting shaft 22 and axle sleeve 23 with hoisting speed reducer.Wherein, even
Spindle 22 and axle sleeve 23 are used as intermediate transmission mechanism, and the driving for being used for realization hoisting speed reducer and bus-type rotary encoder 21 connects
Connect, the rotation of hoisting speed reducer is transferred at rotary encoder 21, allow bus-type rotary encoder 21 as elevator subtracts
Fast machine rotates synchronously.Specifically, as shown in Fig. 2, connecting shaft 22 can be arranged on the central hole of flange 26 by bearing, together
When, one end is connected with axle sleeve 23, the rotation axis connection of the other end and bus-type rotary encoder 21, to realize that bus-type rotation is compiled
The drive connection of code device 21 and axle sleeve 23.Then one end (left end) is connected axle sleeve 23 with connecting shaft 22, the other end (right end) and elevator
Gear reducer connects.Wherein, the connection between connecting shaft 22 and axle sleeve 23 and rotary encoder 21 can be realized by bolt.When
So, bus-type rotary encoder 21 can also use other modes to be drivingly connected with hoisting speed reducer.
Also, as shown in Fig. 2, in this embodiment, detection device 2 further includes flexible mounting plate 24, bus-type rotation is compiled
Code device 21 is installed on flexible mounting plate 24.Flexible mounting plate 24 is made of flexible material (such as rubber), it can directly consolidate
It is scheduled on flange 26.The bus-type rotary encoder 21 that can allow to be mounted thereon due to flexible mounting plate 24 is in a certain range
Interior adaptive adjustment, therefore, can effectively adjust the concentricity of bus-type rotary encoder 21 and hoisting speed reducer, reduce to total
Line style rotary encoder 21 installs the requirement of concentricity, reduces installation difficulty, and it is possible to prevente effectively from installation coaxially may not be right
Damage caused by bus-type rotary encoder 21, is conducive to extend the service life of bus-type rotary encoder 21.
Due to the embodiment bus-type rotary encoder 21 using multi-turn absolute value bus-type rotary encoder and with volume
Gear reducer drive connection is raised, therefore, it can directly detect the rotating cycle (i.e. rotation angle) for obtaining winching barrel 1 and rotation
The information such as speed, and the computing function based on therein obtains 3 emitting rate of steel wire rope and releases length information and exported.
Specifically, with reference to Fig. 3, since steel wire rope 3 is when on different winding layers, its outside diameter wound is different, same elevator
Under 1 rotating speed of roller, corresponding steel wire rope 3 go out rope speed difference, if by steel wire rope 3 winching barrel 1 only wind 3 enclose when it is corresponding
The rotation angle of winching barrel 1 is set as 0 degree, then when winching barrel 1 rotates 3600 degree, then it represents that winching barrel 1 have rotated 10
Circle, according to 1 rotating cycle of winching barrel and rotary speed, the outside diameter of structure size and steel wire rope 3 in conjunction with winching barrel 1
Deng, the number of plies residing for the number of turns and steel wire rope 3 that current steel wire rope 3 winds on winching barrel 1 can accurately be calculated, so that
The emitting rate of steel wire rope 3 can accurately be calculated and release the information such as length.
As it can be seen that the embodiment at hoisting speed reducer by being installed as the bus of multi-turn absolute value bus-type rotary encoder
Type rotary encoder 21, it is possible to achieve the direct accurate measurement to 1 rotation angle of winching barrel and rotary speed, is rolled with reference to elevator
1 rotating cycle of structure size, 3 size of steel wire rope and current winching barrel of cylinder 1 etc., judges the number of plies residing for steel wire rope 3, finally
The emitting rate of steel wire rope 3 can accurately be calculated and release length.Due to relative to speed probe and other kinds of
Encoder, the measurement accuracy of multi-turn absolute value bus-type rotary encoder is higher, and itself is integrated with signal acquisition, at data
Reason and the multiple functions such as fault diagnosis, without by controller after-treatment, accumulated error is smaller again, therefore, measurement is more convenient,
And it can realize and the releasing length of steel wire rope 3 and emitting rate are more accurately detected.
Connect it should be noted that being arranged to drive with hoisting speed reducer by bus-type rotary encoder 21 in above-described embodiment
Connect, but alternately, bus-type rotary encoder 21 can also be drivingly connected with hoist motor, as long as in fact, bus-type revolves
Turn encoder 21 to be drivingly connected with drum drive, can realize the measurement that length and emitting rate are released to steel wire rope 3.
And relative to being drivingly connected with hoist motor, when bus-type rotary encoder 21 is drivingly connected with hoisting speed reducer, without considering
The problem of motor seals, structure is simpler, and installation is more convenient.
In addition, above-described embodiment is used as same axis adjustment device using flexible mounting plate 24, bus-type rotary encoder is adjusted
21 with the concentricity of hoisting speed reducer, but in other embodiments, other structures form, example can also be used with axis adjustment device
Such as, shaft coupling can also be included with axis adjustment device, bus-type rotary encoder 21 is driven by shaft coupling and hoisting speed reducer
Connection.It can also avoid installation not coaxially to damage caused by bus-type rotary encoder 21 using shaft coupling.
The utility model uses bus-type rotary encoder, it is possible to achieve releases the straight of length and emitting rate to steel wire rope
Measurement is connect, there is higher measurement accuracy and signal real-time, and reliability is higher, by verification experimental verification, can preferably expire
Sufficient crane is easy to implement the elevator servo antrol and excessive release of steel wire rope of higher precision to the testing requirements of steel wire rope motion state
The multiple functions such as protection control.So the utility model additionally provides a kind of crane, it includes the elevator dress of the utility model
Put.
The foregoing is merely the exemplary embodiment of the utility model, it is not intended to limit the utility model, it is all in this reality
Within new spirit and principle, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Within protection domain.
Claims (10)
1. a kind of winding plant, including winching barrel (1), the winching barrel (1) is used for lay winding wire ropes (3) and controls steel wire
Rope (3) folding and unfolding, it is characterised in that further include detection device (2), the detection device (2) includes bus-type rotary encoder
(21), the bus-type rotary encoder (21) is used to detect the steel wire rope (3) putting under the winching barrel (1) drive
Go out speed and release length.
2. winding plant according to claim 1, it is characterised in that the bus-type rotary encoder (21) is absolute value
Bus-type rotary encoder；And/or the bus-type rotary encoder (21) is multi-turn bus-type rotary encoder.
3. winding plant according to claim 1 or 2, it is characterised in that the winding plant includes being used to drive described
The drum drive that winching barrel (1) rotates, the bus-type rotary encoder (21) drive with the drum drive
Connection.
4. winding plant according to claim 3, it is characterised in that the drum drive includes hoisting speed reducer,
The bus-type rotary encoder (21) is drivingly connected with the hoisting speed reducer.
5. winding plant according to claim 4, it is characterised in that the detection device (2) further includes intermediate transmission machine
Structure, the bus-type rotary encoder (21) are drivingly connected by the intermediate transmission mechanism and the hoisting speed reducer.
6. winding plant according to claim 5, it is characterised in that the intermediate transmission mechanism includes axle sleeve (23) and connects
Spindle (22), the bus-type rotary encoder (21) are drivingly connected by the connecting shaft (22) and the axle sleeve (23), institute
Axle sleeve (23) is stated to be drivingly connected with the hoisting speed reducer.
7. winding plant according to claim 4, it is characterised in that the detection device (2) further includes same axial adjustment dress
Put, the same axis adjustment device is used to adjust the bus-type rotary encoder (21) and the concentricity of the hoisting speed reducer.
8. winding plant according to claim 7, it is characterised in that the same axis adjustment device includes flexible mounting plate
(24), the bus-type rotary encoder (21) is installed on the flexible mounting plate (24)；And/or the same axial adjustment dress
Put including shaft coupling, the bus-type rotary encoder (21) is drivingly connected by the shaft coupling and the hoisting speed reducer.
9. winding plant according to claim 1 or 2, it is characterised in that the detection device (2) further includes case
(25), it is internal to be arranged on the case (25) for the bus-type rotary encoder (21).
10. a kind of crane, it is characterised in that including the winding plant as described in claim 1-9 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721132679.5U CN207248135U (en) | 2017-09-06 | 2017-09-06 | Winding plant and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721132679.5U CN207248135U (en) | 2017-09-06 | 2017-09-06 | Winding plant and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248135U true CN207248135U (en) | 2018-04-17 |
Family
ID=61884368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721132679.5U Active CN207248135U (en) | 2017-09-06 | 2017-09-06 | Winding plant and crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN207248135U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759753A (en) * | 2018-06-29 | 2018-11-06 | 广东思沃精密机械有限公司 | Blowing length detection formula dry film frame |
| CN109437035A (en) * | 2018-12-14 | 2019-03-08 | 河北环航科技股份有限公司 | A kind of speed regulation aeroengine winches |
| CN112141900A (en) * | 2020-09-10 | 2020-12-29 | 张家港宏昌钢板有限公司 | System and method for monitoring faults of molten iron desulphurization equipment in real time |
| CN112147361A (en) * | 2020-10-16 | 2020-12-29 | 北京三一智造科技有限公司 | Steel wire rope winding parameter calculation method and winding machine equipment |
| CN112173971A (en) * | 2020-09-10 | 2021-01-05 | 湖南中联重科智能技术有限公司 | System and method for detecting rope releasing length of winch and crane |
| CN113382947A (en) * | 2019-02-14 | 2021-09-10 | 株式会社多田野 | Off-ground determination device, off-ground control device, mobile crane, and off-ground determination method |
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2017
- 2017-09-06 CN CN201721132679.5U patent/CN207248135U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759753A (en) * | 2018-06-29 | 2018-11-06 | 广东思沃精密机械有限公司 | Blowing length detection formula dry film frame |
| CN108759753B (en) * | 2018-06-29 | 2024-04-09 | 广东思沃先进装备有限公司 | Discharging length detection type dry film frame |
| CN109437035A (en) * | 2018-12-14 | 2019-03-08 | 河北环航科技股份有限公司 | A kind of speed regulation aeroengine winches |
| CN113382947A (en) * | 2019-02-14 | 2021-09-10 | 株式会社多田野 | Off-ground determination device, off-ground control device, mobile crane, and off-ground determination method |
| CN112141900A (en) * | 2020-09-10 | 2020-12-29 | 张家港宏昌钢板有限公司 | System and method for monitoring faults of molten iron desulphurization equipment in real time |
| CN112173971A (en) * | 2020-09-10 | 2021-01-05 | 湖南中联重科智能技术有限公司 | System and method for detecting rope releasing length of winch and crane |
| CN112173971B (en) * | 2020-09-10 | 2022-11-25 | 湖南中联重科智能技术有限公司 | System and method for detecting rope releasing length of winch and crane |
| CN112147361A (en) * | 2020-10-16 | 2020-12-29 | 北京三一智造科技有限公司 | Steel wire rope winding parameter calculation method and winding machine equipment |
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