阅读说明：本技术 一种多层缠绕卷筒起升高度的测量方法、设备及存储介质 (Method and device for measuring lifting height of multilayer winding drum and storage medium ) 是由 谢彦昆 罗云 许晋宁 于 2019-09-25 设计创作，主要内容包括：本申请公开了一种多层缠绕卷筒起升高度的测量方法、设备及存储介质,该方法包括：将卷筒从上限位下行到预设高度时,通过编码器获取脉冲总数,并计算出当前卷筒圈数；当计算出的当前卷筒圈数大于等于卷筒最外层圈数时,分别计算出最外层、中间满层和最内层下放钢丝绳长度；其中,在计算最内层下放钢丝绳长度的过程中求取卷筒最内层圈数的脉冲数时采用脉冲总数减去中间满层和最外层产生的脉冲数；将计算出的最外层、中间满层和最内层下放钢丝绳长度相加,得到卷筒的起升高度。本申请中最内层圈数的计算利用脉冲总数减去中间满层和最外层圈数产生的脉冲,可以补偿中间满层和最外层产生的圈数误差,提高了吊钩下放高度的测量精度,省去了下限位装置。(The application discloses a method, equipment and storage medium for measuring the lifting height of a multilayer winding drum, wherein the method comprises the following steps: when the winding drum descends to a preset height from an upper limit, acquiring the total number of pulses through an encoder, and calculating the number of turns of the winding drum at present; when the calculated number of turns of the current winding drum is greater than or equal to that of the outermost layer of the winding drum, the lengths of the steel wire ropes placed in the outermost layer, the middle full layer and the innermost layer are calculated respectively; the method comprises the following steps that in the process of calculating the length of a steel wire rope placed in the innermost layer, the pulse number of the turns of the innermost layer of a winding drum is obtained, and the pulse number generated by the full layer and the outermost layer in the middle is subtracted from the total pulse number; and adding the calculated lengths of the lowering steel wire ropes of the outermost layer, the middle full layer and the innermost layer to obtain the lifting height of the winding drum. The calculation of inlayer number of turns utilizes the pulse total number to subtract the pulse that middle full layer and outermost number of turns produced in this application, can compensate the middle full layer and the outermost number of turns error that produces, has improved the measuring accuracy that the height was transferred to the lifting hook, has saved stop device down.)

1. A method for measuring the lifting height of a multilayer winding drum is characterized by comprising the following steps:

when the winding drum descends to a preset height from an upper limit, acquiring the total number of pulses through an encoder, and calculating the number of turns of the winding drum at present;

when the calculated number of turns of the current winding drum is greater than or equal to that of turns of the outermost layer of the winding drum, the lengths of the steel wire ropes placed in the outermost layer, the middle full layer and the innermost layer are calculated respectively; the method comprises the following steps that in the process of calculating the length of a steel wire rope placed in the innermost layer, the pulse number of the turns of the innermost layer of a winding drum is obtained, and the pulse number generated by the full layer and the outermost layer in the middle is subtracted from the total pulse number;

and adding the calculated lengths of the lowering steel wire ropes of the outermost layer, the middle full layer and the innermost layer to obtain the lifting height of the winding drum.

2. A method of measuring the hoist height of a multi-layer wound spool as claimed in claim 1, further comprising, prior to lowering the spool from the upper limit to the preset height:

the winding drum is moved upwards, after the upper limit is reached, the lowering height of the steel wire rope is 0, and the number of turns of the outermost layer of the winding drum and the initial diameter of the winding drum at the moment are recorded; the initial diameter of the drum includes the diameter of the drum body and the total diameter of the multi-layer wire rope wound on the drum.

3. A method of measuring the hoist height of a multi-layer winding drum as claimed in claim 2, further comprising:

if the calculated number of turns of the current winding drum is smaller than that of turns of the outermost layer of the winding drum, judging that the number of turns of the steel wire rope is placed on the outermost layer;

and calculating the lifting height of the winding drum according to the total number of the pulses, the initial diameter of the winding drum and the diameter of the steel wire rope.

4. A method of measuring the hoist height of a multi-layer winding drum as claimed in claim 3, wherein the hoist height of the drum is calculated using the following equation:

wherein H represents the lift of the drum, P represents the total number of pulses, D₀Representing the initial diameter of the drum, d representing the diameter of the wire rope, n representing the mechanical transmission ratio, and m representing the number of pulses per revolution.

5. A method of measuring the hoisting height of a multi-layer winding drum as claimed in claim 2, wherein the length of the outermost layer lowering wire rope is calculated by the following formula:

H₀＝C₀×π×(D₀-d)

wherein H₀Represents the length of the outermost layer lowering wire rope, C₀Indicating the outermost number of turns of the drum, D₀Representing the initial diameter of the drum and d the wire rope diameter.

6. A method of measuring the hoist height of a multi-layer winding drum as claimed in claim 5, wherein the length of the intermediate full-layer lowering wire rope is calculated by the following formula:

H_i＝C_N×π×[D₀-d×(2i+1)]

wherein H_midRepresents the length H of the middle full-layer lowering steel wire rope_iRepresenting the length of the steel wire rope laid in the middle full layer of each layer; floor represents the number of layers, 0 in the case of the outermost layer, i represents the ith number of layers, 0<i<Floor，C_NIndicating full lap turns of said drum, C₁Indicating the current number of turns of the reel, C₀Indicating the outermost number of turns of the drum, D₀Representing the initial diameter of the drum and d the wire rope diameter.

7. A method of measuring the hoist height of a multi-layer winding drum as claimed in claim 6, wherein the length of the innermost lowering wire rope is calculated using the following formula:

wherein H_FloorThe length of the steel wire rope laid at the innermost layer is shown, P is the total number of pulses, n is the mechanical transmission ratio, m is the number of pulses per circle, i is the ith layer number, C is the number of the ith layer_NIndicating the full lap turns of the log,C₀indicating the outermost number of turns of the drum, D₀Representing the initial diameter of the drum and d the wire rope diameter.

8. A method of measuring the hoist height of a multi-layer winding drum as claimed in claim 1, wherein the current number of turns of the drum is calculated using the formula:

wherein, C₁Representing the current number of windings of the reel, P representing the total number of pulses, n representing the mechanical transmission ratio, m representing the number of pulses per winding.

9. A multi-layer winding drum rise measurement apparatus comprising a processor and a memory, wherein the processor, when executing a computer program stored in the memory, implements a multi-layer winding drum rise measurement method as claimed in any one of claims 1 to 8.

10. A computer-readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements a method of measuring the hoist height of a multi-layer winding drum as claimed in any one of claims 1 to 8.

Technical Field

The invention relates to the field of lifting height measurement, in particular to a method and equipment for measuring the lifting height of a multilayer winding drum and a storage medium.

Background

In the lifting industry that can use tower machine, gantry crane etc., all can not leave the measurement of lifting height, and the measuring accuracy of height and user's convenience are very important. At present, although some manufacturers propose a method for measuring the lifting height, the method has the problems of complicated parameter setting, large lifting height measurement error and the like.

The lifting height calculation of the existing winding drum generally adopts the non-full layer and the full layer of winding drum steel wire rope turns, the full layer turns are obtained by dividing the winding drum length by the diameter of the steel wire rope, the full layer is a default invariable value, but when the winding drum does not have a fixed isolation groove, the full layer turns may be different when the winding drum winds up the steel wire rope every time, the actual turns may be smaller than the default value, the error of height calculation is larger than the maximum, and the error generated by the full layer is not compensated or processed.

Therefore, how to solve the problems of complicated parameter setting, large lifting height measurement error and the like is a technical problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

In view of the above, the present invention provides a method, an apparatus and a storage medium for measuring the hoisting height of a multi-layer winding drum. The specific scheme is as follows:

a method for measuring the lifting height of a multilayer winding drum comprises the following steps:

when the winding drum descends to a preset height from an upper limit, acquiring the total number of pulses through an encoder, and calculating the number of turns of the winding drum at present;

when the calculated number of turns of the current winding drum is greater than or equal to that of turns of the outermost layer of the winding drum, the lengths of the steel wire ropes placed in the outermost layer, the middle full layer and the innermost layer are calculated respectively; the method comprises the following steps that in the process of calculating the length of a steel wire rope placed in the innermost layer, the pulse number of the turns of the innermost layer of a winding drum is obtained, and the pulse number generated by the full layer and the outermost layer in the middle is subtracted from the total pulse number;

and adding the calculated lengths of the lowering steel wire ropes of the outermost layer, the middle full layer and the innermost layer to obtain the lifting height of the winding drum.

Preferably, in the method for measuring the lifting height of the multi-layer winding drum provided by the embodiment of the present invention, before descending the drum from the upper limit to the preset height, the method further includes:

the winding drum is moved upwards, after the upper limit is reached, the lowering height of the steel wire rope is 0, and the number of turns of the outermost layer of the winding drum and the initial diameter of the winding drum at the moment are recorded; the initial diameter of the drum includes the diameter of the drum body and the total diameter of the multi-layer wire rope wound on the drum.

Preferably, in the method for measuring the hoisting height of the multilayer winding drum provided by the embodiment of the present invention, the method further includes:

if the calculated number of turns of the current winding drum is smaller than that of turns of the outermost layer of the winding drum, judging that the number of turns of the steel wire rope is placed on the outermost layer;

and calculating the lifting height of the winding drum according to the total number of the pulses, the initial diameter of the winding drum and the diameter of the steel wire rope.

Preferably, in the method for measuring the hoisting height of the multilayer winding drum provided by the embodiment of the present invention, the hoisting height of the drum is calculated by using the following formula:

wherein H represents the lift of the drum, P represents the total number of pulses, D₀Representing the initial diameter of the drum, d representing the diameter of the wire rope, n representing the mechanical transmission ratio, and m representing the number of pulses per revolution.

Preferably, in the method for measuring the hoisting height of the multilayer winding drum provided by the embodiment of the present invention, the length of the steel wire rope laid down at the outermost layer is calculated by using the following formula:

H₀＝C₀×π×(D₀-d)

wherein H₀Represents the length of the outermost layer lowering wire rope, C₀Indicating the outermost number of turns of the drum, D₀Representing the initial diameter of the drum and d the wire rope diameter.

Preferably, in the method for measuring the hoisting height of the multilayer winding drum provided by the embodiment of the present invention, the length of the steel wire rope lowered from the middle full layer is calculated by using the following formula:

H_i＝C_N×π×[D₀-d×(2i+1)]

wherein H_midRepresents the length H of the middle full-layer lowering steel wire rope_iRepresenting the length of the steel wire rope laid in the middle full layer of each layer; floor represents the number of layers, 0 in the case of the outermost layer, i represents the ith number of layers, 0<i<Floor，C_NIndicating full lap turns of said drum, C₁Indicating the current number of turns of the reel, C₀Indicating the outermost number of turns of the drum, D₀Representing the initial diameter of the drum and d the wire rope diameter.

Preferably, in the method for measuring the hoisting height of the multilayer winding drum provided by the embodiment of the present invention, the length of the innermost layer lowering steel wire rope is calculated by using the following formula:

wherein H_FloorThe length of the steel wire rope laid at the innermost layer is shown, P is the total number of pulses, n is the mechanical transmission ratio, m is the number of pulses per circle, i is the ith layer number, C is the number of the ith layer_NIndicating full lap turns of said drum, C₀Indicating the outermost number of turns of the drum, D₀Representing the initial diameter of the drum and d the wire rope diameter.

Preferably, in the method for measuring the lifting height of the multilayer winding drum provided by the embodiment of the invention, the current number of turns of the drum is calculated by adopting the following formula:

wherein, C₁Representing the current number of windings of the reel, P representing the total number of pulses, n representing the mechanical transmission ratio, m representing the number of pulses per winding.

The embodiment of the invention also provides a device for measuring the lifting height of the multilayer winding drum, which comprises a processor and a memory, wherein the processor realizes the method for measuring the lifting height of the multilayer winding drum provided by the embodiment of the invention when executing the computer program stored in the memory.

Embodiments of the present invention further provide a computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the method for measuring the lifting height of a multi-layer winding reel as provided in the embodiments of the present invention.

According to the technical scheme, the method, the device and the storage medium for measuring the lifting height of the multilayer winding drum provided by the invention comprise the following steps: when the winding drum descends to a preset height from an upper limit, acquiring the total number of pulses through an encoder, and calculating the number of turns of the winding drum at present; when the calculated number of turns of the current winding drum is greater than or equal to that of the outermost layer of the winding drum, the lengths of the steel wire ropes placed in the outermost layer, the middle full layer and the innermost layer are calculated respectively; the method comprises the following steps that in the process of calculating the length of a steel wire rope placed in the innermost layer, the pulse number of the turns of the innermost layer of a winding drum is obtained, and the pulse number generated by the full layer and the outermost layer in the middle is subtracted from the total pulse number; and adding the calculated lengths of the lowering steel wire ropes of the outermost layer, the middle full layer and the innermost layer to obtain the lifting height of the winding drum.

The number of turns of the drum to be lowered is divided into the innermost layer, the middle full layer and the outermost layer, and the influence of the diameters of the steel wire ropes of different layers is considered; in the calculation process of the number of turns of the innermost layer steel wire rope, the number of pulses generated by the middle full layer and the outermost layer is subtracted from the total number of pulses of the encoder to obtain the number of pulses of the innermost layer, and the innermost layer can compensate errors generated by the middle full layer regardless of whether the middle full layer is really set to be the number of turns of the full layer or not; meanwhile, as long as the total number of turns of the steel wire rope of the winding drum and the upper limit are unchanged, only one-time parameter setting is needed when the lowering distance of the steel wire rope is measured, multiple parameter calibration is not needed, the measuring precision and the working efficiency of the lowering height of the lifting hook are improved, a lower limit device which is not easy to install is omitted, and the use complexity of a user is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a flowchart of a method for measuring the hoisting height of a multilayer winding drum according to an embodiment of the present invention;

fig. 2 is a specific flowchart of a method for measuring the hoisting height of a multilayer winding drum according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a method for measuring the lifting height of a multilayer winding drum, which comprises the following steps as shown in figure 1:

s101, when the winding drum descends to a preset height from an upper limit, acquiring the total number of pulses through an encoder, and calculating the number of turns of the winding drum at present;

s102, judging whether the calculated number of turns of the current winding drum is smaller than the number of turns of the outermost layer of the winding drum;

if not, executing step S103;

s103, respectively calculating the lengths of the lowering steel wire ropes of the outermost layer, the middle full layer and the innermost layer; the method comprises the following steps that in the process of calculating the length of a steel wire rope placed in the innermost layer, the pulse number of the turns of the innermost layer of a winding drum is obtained, and the pulse number generated by the full layer and the outermost layer in the middle is subtracted from the total pulse number;

and S104, adding the calculated lengths of the lowering steel wire ropes of the outermost layer, the middle full layer and the innermost layer to obtain the lifting height of the winding drum.

In the method for measuring the lifting height of the multilayer winding drum provided by the embodiment of the invention, the number of turns of lowering the drum is divided into the innermost layer, the middle full layer and the outermost layer, and the influence of the diameters of steel wire ropes of different layers is considered; in the calculation process of the number of turns of the innermost layer steel wire rope, the number of pulses generated by the middle full layer and the outermost layer is subtracted from the total number of pulses of the encoder to obtain the number of pulses of the innermost layer, and the innermost layer can compensate errors generated by the middle full layer regardless of whether the middle full layer is really set to be the number of turns of the full layer or not; meanwhile, as long as the total number of turns of the steel wire rope of the winding drum and the upper limit are unchanged, only one-time parameter setting is needed when the lowering distance of the steel wire rope is measured, multiple parameter calibration is not needed, the measuring precision and the working efficiency of the lowering height of the lifting hook are improved, a lower limit device which is not easy to install is omitted, and the use complexity of a user is reduced.

Further, in practical implementation, in the method for measuring the lifting height of the multi-layer winding drum provided by the embodiment of the present invention, as shown in fig. 2, before the step S101 is executed to descend the drum from the upper limit to the preset height, the method further includes the following steps:

s100, the winding drum is driven to run upwards, after the upper limit is reached, the lowering height of the steel wire rope is 0, and the number of turns of the outermost layer of the winding drum and the initial diameter of the winding drum at the moment are recorded; the initial diameter of the drum includes the diameter of the body of the drum and the total diameter of the multi-layer wire rope wound onto the drum.

In practical application, calibration is needed in the first operation, and when the operation is carried out to the upper limit, the upper limit device acts, such as shutdown and alarm; record the outermost number of turns of reel and the initial diameter of reel this moment, at this moment, wire rope transfers highly to be 0. And after the upper limit is reached, giving an uplink command to be invalid, not ascending any more, only descending, and obtaining the lifting height of the winding drum according to the length of the descending steel wire rope.

Specifically, the current number of turns of the reel is calculated in step S101 using the following formula:

wherein, C₁The number of current winding drum turns is represented, P represents the total number of pulses (namely the total number of pulses obtained by an encoder when the motor runs from an upper limit to a preset height), n represents the mechanical transmission ratio of the motor and the winding drum, and m represents the number of pulses per turn.

Further, in practical implementation, in the method for measuring the lifting height of the multi-layer winding drum according to the embodiment of the present invention, as shown in fig. 2, after step S102 is completed, if yes, step S105 and step S106 are sequentially executed;

s105, judging that the number of downward-placed turns of the steel wire rope is on the outermost layer;

and S106, calculating the lifting height of the winding drum according to the total number of the pulses, the initial diameter of the winding drum and the diameter of the steel wire rope.

Specifically, in step S106, the hoisting height of the reel is calculated using the following formula:

wherein H denotes the lift of the drum, P denotes the total number of pulses, D₀Indicating the initial diameter of the drum, d the diameter of the wire rope, n the mechanical transmission ratio and m the number of pulses per revolution.

Specifically, in step S103, the length of the outermost lowering wire rope is calculated by using the following formula:

H₀＝C₀×π×(D₀-d)

wherein H₀Indicates the length of the outermost lowering wire rope, C₀Indicating the outermost number of turns of the drum, D₀Indicating the initial diameter of the drum and d the wire rope diameter.

Specifically, in step S103, the length of the middle full-layer lowering steel wire rope is calculated by using the following formula:

H_i＝C_N×π×[D₀-d×(2i+1)]

wherein H_midIndicates the length of the steel wire rope placed in the middle full layer, H_iThe length of the steel wire rope placed in the middle full layer of each layer is represented; floor represents the number of layers (from outside to inside), 0 in the case of the outermost layer, i represents the ith layer, 0<i<Floor，C_NIndicating full lap turns of the drum, C₁Indicating the current number of turns of the drum, C₀Indicating the outermost number of turns of the drum, D₀Indicating the initial diameter of the drum and d the wire rope diameter.

Specifically, in step S103, the length of the innermost lowering wire rope is calculated by using the following formula:

wherein H_FloorThe length of the steel wire rope laid at the innermost layer is shown, P is the total number of pulses, n is the mechanical transmission ratio, m is the number of pulses per circle, i is the ith layer number, C_NIndicating full lap turns of the drum, C₀Indicating the outermost number of turns of the drum, D₀Indicating the initial diameter of the drum and d the wire rope diameter.

It is obvious from the above formula that the pulse number generated by the intermediate layer and the outermost layer is subtracted from the total pulse number used in the calculation of the innermost layer, so that the calculation can reduce the error generated by the difference between the actual number of turns of the intermediate full layer and the set value of the full layer. As long as the winding drum is not changed, the upper limit is not changed, and only one parameter calibration is needed. For example, if a tower body of a tower crane is heightened, the lowering height can still be measured without recalibration, so that the parameter calibration times of different tower body heights are reduced.

H＝H₀+H_mid+H_Floor

The lifting height H (namely the total lowering height of the steel wire rope) of the winding drum is the sum of the lowering heights of the innermost layer, the middle full layer and the outermost layer.

Correspondingly, the embodiment of the invention also discloses a device for measuring the lifting height of the multilayer winding drum, which comprises a processor and a memory; the method for measuring the lifting height of the multilayer winding reel disclosed in the previous embodiment is realized when the processor executes the computer program stored in the memory.

For more specific processes of the above method, reference may be made to corresponding contents disclosed in the foregoing embodiments, and details are not repeated here.

Further, the present invention also discloses a computer readable storage medium for storing a computer program; the computer program when executed by the processor implements the method of measuring the hoist height of a multi-layer winding drum as disclosed above.

For more specific processes of the above method, reference may be made to corresponding contents disclosed in the foregoing embodiments, and details are not repeated here.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device and the storage medium disclosed by the embodiment correspond to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

To sum up, the method, the device and the storage medium for measuring the lifting height of the multilayer winding drum provided by the embodiment of the invention comprise the following steps: when the winding drum descends to a preset height from an upper limit, acquiring the total number of pulses through an encoder, and calculating the number of turns of the winding drum at present; when the calculated number of turns of the current winding drum is greater than or equal to that of the outermost layer of the winding drum, the lengths of the steel wire ropes placed in the outermost layer, the middle full layer and the innermost layer are calculated respectively; the method comprises the following steps that in the process of calculating the length of a steel wire rope placed in the innermost layer, the pulse number of the turns of the innermost layer of a winding drum is obtained, and the pulse number generated by the full layer and the outermost layer in the middle is subtracted from the total pulse number; and adding the calculated lengths of the lowering steel wire ropes of the outermost layer, the middle full layer and the innermost layer to obtain the lifting height of the winding drum. The invention considers the influence of the diameters of the steel wire ropes of different layers, and divides the number of turns of the downward movement of the winding drum into an innermost layer, a middle full layer and an outermost layer; in the calculation process of the number of turns of the steel wire rope at the innermost layer, the number of the turns of the innermost layer is obtained by subtracting the number of the turns generated by the middle full layer and the number of the turns at the outermost layer from the total number of the pulses of the encoder, so that the error generated by the middle full layer can be compensated by the innermost layer regardless of whether the middle full layer is really set to the number of the turns at the full layer; meanwhile, as long as the total number of turns of the steel wire rope of the winding drum and the upper limit are unchanged, only one-time parameter setting is needed when the lowering distance of the steel wire rope is measured, multiple parameter calibration is not needed, the measuring precision and the working efficiency of the lowering height of the lifting hook are improved, a lower limit device which is not easy to install is omitted, and the use complexity of a user is reduced.

Finally, it is further noted that, herein, relational terms are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The method, the device and the storage medium for measuring the lifting height of the multilayer winding drum provided by the invention are described in detail, specific examples are applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.