CN114233137B - Double-layer linkage closed-loop rope system installation method - Google Patents

Double-layer linkage closed-loop rope system installation method Download PDF

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Publication number
CN114233137B
CN114233137B CN202111478183.4A CN202111478183A CN114233137B CN 114233137 B CN114233137 B CN 114233137B CN 202111478183 A CN202111478183 A CN 202111478183A CN 114233137 B CN114233137 B CN 114233137B
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rope
winding
wheel assembly
wheel
rope system
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CN114233137A (en
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白忠奕
张斌
谢岩
吕东
崔晓航
范天明
刘鑫
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Beijing Satellite Manufacturing Factory Co Ltd
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Beijing Satellite Manufacturing Factory Co Ltd
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Priority to PCT/CN2022/115617 priority patent/WO2023103473A1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/654—Cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/658—Members cooperating with flexible elongated pulling elements
    • E05Y2201/668—Pulleys; Wheels
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/658—Members cooperating with flexible elongated pulling elements
    • E05Y2201/672—Tensioners, tension sensors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2999/00—Subject-matter not otherwise provided for in this subclass

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Electric Cable Installation (AREA)

Abstract

The invention relates to a double-layer linkage closed-loop rope system installation method, which comprises the following steps: a. calculating the rope retracting difference of a driving wheel assembly and a winding wheel assembly in the double-layer linkage closed-loop rope tying mechanism; b. calculating the deformation of a spring of a guide wheel assembly in the double-layer linkage closed-loop rope system mechanism according to the rope receiving and releasing difference; c. setting a minimum stress F' of the spring, and calculating the maximum stress of the spring as F according to the deformation of the spring and the rigidity of the spring; d. calculating the rope winding force of the double-layer linkage closed-loop rope system mechanism according to the maximum stress F of the spring; e. applying rope winding force on the upper rope system of the driving wheel assembly to wind the rope on the upper rope system of the driving wheel assembly and the winding wheel assembly; f. applying rope winding force on the lower rope system of the driving wheel assembly and the winding wheel assembly to wind the lower rope system; g. and closing the rope of the upper layer of the rope system of the driving wheel assembly and the winding wheel assembly. The invention realizes the installation of the double-layer linkage rope system mechanism and effectively ensures the installation and adjustment quality of the double-layer linkage rope system mechanism.

Description

Double-layer linkage closed-loop rope system installation method
Technical Field
The invention relates to the technical field of rope system installation, in particular to a double-layer linkage closed-loop rope system installation method.
Background
The electric cabin door is a key single machine for realizing the automatic cargo delivery function, and the sealing performance and the opening and closing performance of the electric cabin door are directly related to the realization of the model function. The rope system mechanism is used as a component of the cabin door sliding transmission mechanism, and the motor drives the traction cabin door to move between an opening position and a closing position along a preset track.
The double-layer linkage closed-loop rope system of the rope system mechanism comprises an upper layer of aramid rope and a lower layer of aramid rope winding rope system, wherein two ends of each layer of rope system are respectively fixed on outer surface pressing plates of an upper wheel and a lower wheel of the driving wheel assembly and the winding wheel assembly, and different numbers of turns are wound in the rope groove through rope penetrating holes in the bottom of the rope groove. In the initial installation state, the upper wheel of the driving wheel assembly and the lower wheel of the winding wheel assembly wind the rope for 5 circles, and the lower wheel of the driving wheel assembly and the upper wheel of the winding wheel assembly wind the rope for 3 circles. The lower rope is tied to be a rope. The upper rope system is two ropes, the other ends of the two ropes are respectively fixed on the traction point component cover plate, and 3 circles of ropes are wound in the rope grooves through rope through holes at the bottoms of the rope grooves of the two small winding seats. The rope rings in all the rope grooves are required to be stacked in a single layer, and are not arranged side by side and not overlapped, so that the rope winding adjustment of the rope tying mechanism is a great problem.
Because the upper and lower two-layer wheel of drive wheel subassembly and winding wheel subassembly is rigid connection, so the rotatory number of turns of each round is the same. When the hatch door is opened, the driving wheel assembly rotates anticlockwise, the number of turns of the lower wheel rope winding is changed into 5 turns from 3 turns, the lower wheel of the driving winding wheel assembly rotates anticlockwise, the number of turns of the rope winding is changed into 3 turns from 5 turns, then the upper wheel of the winding wheel assembly also rotates anticlockwise, the number of turns of the rope winding is changed into 5 turns from 3 turns, and the driving traction point assembly is driven to move to the left side from the right side. When the hatch door is closed, the driving wheel component rotates clockwise, the number of turns of the upper wheel rope winding is changed into 5 turns from 3 turns, the driving traction point component is driven to move to the right side from the left side, the upper wheel of the winding wheel component is also driven to rotate clockwise, the number of turns of the rope winding is changed into 3 turns from 5 turns, so that the number of turns of the lower wheel rope winding of the winding wheel component is changed into 5 turns from 3 turns, and the number of turns of the lower wheel rope winding of the driving wheel component is changed into 3 turns from 5 turns.
The radiuses of all wheel grooves on the driving wheel assembly and the winding wheel assembly are the same, but the numbers of turns of rope winding on the driving wheel assembly and the winding wheel assembly are different, so that the turning radiuses of the rope system driving wheel and the winding wheel on each layer are different, the rope winding length of one wheel is different from the rope unwinding length of the other wheel, the length of aramid fiber ropes in the middle of the rope system is changed, and the tension of the rope system is also changed. The upper layer of ropes are adjusted through a torsion spring, and the lower layer of ropes are adjusted through a compression spring. The rope system mechanism is required to be in operation, and the rope system is ensured not to loosen and lose efficacy while the tension of the rope system is always kept. Therefore, it is a difficult problem to precisely control the tension of the rope system during the opening and closing movement of the cabin door.
Disclosure of Invention
In order to solve the problem of accurate control of rope tensioning force of the double-layer linkage rope system mechanism, the invention provides the double-layer linkage closed-loop rope system installation method, which realizes the installation of the double-layer linkage rope system mechanism and effectively ensures the installation and adjustment quality of the double-layer linkage rope system mechanism.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a double-layer linkage closed-loop rope system installation method, which comprises the following steps:
a. calculating the rope retracting difference of a driving wheel assembly and a winding wheel assembly in the double-layer linkage closed-loop rope tying mechanism;
b. calculating the deformation of a spring of a guide wheel assembly in the double-layer linkage closed-loop rope system mechanism according to the rope receiving and releasing difference;
c. setting the minimum stress F' of the spring, and calculating the maximum stress F of the spring according to the deformation of the spring and the rigidity of the spring;
d. calculating the rope winding force of the double-layer linkage closed-loop rope system mechanism according to the maximum stress F of the spring;
e. applying the rope winding force to the upper rope system of the driving wheel assembly, and winding the rope on the upper rope system of the driving wheel assembly and the winding wheel assembly;
f. applying the rope winding force to the lower rope system of the driving wheel assembly and the winding wheel assembly to wind the rope on the lower rope system;
g. and closing the rope of the upper layer of the rope system of the driving wheel assembly and the winding wheel assembly.
According to an aspect of the present invention, when the lower wheels of the driving wheel assembly and the winding wheel assembly rotate simultaneously, the difference in the taken-up and let-off rope is a difference between the taken-up rope amount of the lower wheels of the driving wheel assembly and the let-off rope amount of the lower wheels of the winding wheel assembly, and is:
Figure BDA0003394389850000031
wherein R1 represents a turning radius of the lower wheel of the driving wheel assembly, R2 represents a turning radius of the lower wheel of the winding wheel assembly, and α ° represents a rotation angle of the lower wheels of the driving wheel assembly and the winding wheel assembly.
According to one aspect of the invention, the spring is a compression spring arranged on a lower wheel of the guide wheel assembly, and the maximum deformation amount of the compression spring is as follows:
Figure BDA0003394389850000032
wherein, delta represents the maximum rope-retracting difference, theta represents the included angle between the ropes at the two ends of the lower wheel (with the pressure spring) of the guide wheel component; the maximum stress of the compression spring is F = F' + K.DELTA.L, wherein K represents the elastic coefficient of the compression spring.
According to one aspect of the invention, the rope winding force calculated from the maximum force F of the compression spring is:
Figure BDA0003394389850000041
according to an aspect of the invention, said step d comprises:
the upper rope system comprises a first upper rope system and a second upper rope system, one end of the first upper rope system is fixed on the upper wheel of the winding wheel assembly, the other end of the first upper rope system rounds a tensioning swing rod arranged on the winding wheel assembly along the rope outlet direction of the upper wheel of the winding wheel assembly, a weight with the same weight as the rope winding force of the rope winding is horizontally pulled through a fixed pulley, the upper wheel of the winding wheel assembly is rotated along the direction opposite to the rope outlet direction of the upper wheel of the winding wheel assembly, and the first upper rope system after rope winding is fixed;
fixing one end of the second upper rope system on an upper wheel of the driving wheel assembly, enabling the other end of the second upper rope system to pass through a tensioning swing rod arranged on the driving wheel assembly along the rope outlet direction of the upper wheel of the driving wheel assembly, horizontally passing through a fixed pulley, pulling a weight with the same weight as the rope winding force, rotating the upper wheel of the driving wheel assembly along the direction opposite to the rope outlet direction of the upper wheel of the driving wheel assembly, marking the initial position of the rotation angle of the tensioning swing rod, and fixing the second upper rope system after rope winding;
wherein the number of revolutions of the upper wheel of the winding wheel assembly is less than the number of revolutions of the upper wheel of the driving wheel assembly.
According to an aspect of the invention, said step e comprises:
winding one end of the lower layer rope system on a lower wheel of the winding wheel assembly, enabling the other end of the lower layer rope system to horizontally pass through a fixed pulley along the rope outlet direction of the lower wheel of the winding wheel assembly, drawing a weight with the same weight as the rope winding force of the rope winding, rotating an upper wheel of the winding wheel assembly along the direction opposite to the rope outlet direction of the upper wheel of the winding wheel assembly, and fixing the lower wheel of the winding wheel assembly and the lower layer rope system after rope winding;
and detaching the weights, and enabling the other end of the lower layer rope system to pass by the lower wheel of the guide wheel assembly along the rope outlet direction of the lower wheel of the winding wheel assembly, and reserving a first rope length and then fixing the rope length on the lower wheel of the driving wheel assembly. Using a process rope to tie the lower layer rope system tightly and horizontally pass through a fixed pulley, pulling a weight with the same weight as the winding force of the rope winding, rotating the lower wheel of the driving wheel assembly along the direction opposite to the rope outlet direction of the lower wheel of the driving wheel assembly until the lower layer rope system is tightened, and fixing the lower wheel of the wound driving wheel assembly and the lower layer rope system;
the number of the rotating cycles of the lower wheel of the winding wheel assembly is larger than that of the lower wheel of the driving wheel assembly, the number of the rotating cycles of the lower wheel of the winding wheel assembly is the same as that of the upper wheel of the driving wheel assembly, and the number of the rotating cycles of the upper wheel of the winding wheel assembly is the same as that of the lower wheel of the driving wheel assembly. According to one aspect of the present invention, the upper wheel of the winding wheel assembly and the lower wheel of the driving wheel assembly rotate 3 revolutions, the lower wheel of the winding wheel assembly and the upper wheel of the driving wheel assembly rotate 5 revolutions, and the reserved first rope length is:
K1＝2πR+2π(R+h)+2π(R+2h)
wherein R represents radii of the upper and lower wheels of the winding wheel assembly and the upper and lower wheels of the driving wheel assembly, and h represents diameters of ropes of the first upper, second upper and lower ropings.
According to an aspect of the invention, said step f comprises:
the other end of the first upper rope system is wound around an upper wheel of the guide wheel assembly, and a traction tool is used for applying force to the other end of the first upper rope system and the other end of the second upper rope system, so that the tensioning swing rod is restored to the initial position;
and respectively fixing the other ends of the first upper layer rope system and the second upper layer rope system after reserving a second rope length on a first winding seat and a second winding seat of a traction point assembly, and then respectively rotating the first winding seat and the second winding seat in the opposite directions of the rope outlet of the first winding seat and the second winding seat by the same number of circles to fix the traction point assembly.
According to one aspect of the invention, the first winding seat and the second winding seat rotate for 3 revolutions, and the reserved second rope length is:
K2＝2πR'+2π(R'+h)+2π(R'+2h)
wherein R' represents a radius of the first winding seat and the second winding seat, and h represents a diameter of the ropes of the first upper roping and the second upper roping.
According to one aspect of the invention, the process of fixing the upper or lower roping on the wheel is: and fixing the fixed end of the upper layer rope system or the lower layer rope system by using a pressing plate after knotting, wherein the fixed end of the upper layer rope system or the lower layer rope system passes through a rope groove at the bottom of the rope groove along a rope groove on the wheel and is positioned in a rope groove rope threading hole at a tangent point of the rope outlet direction of the wheel.
Has the beneficial effects that:
according to the scheme of the invention, the installation and adjustment problems of the electric cabin door rope system mechanism are solved by the installation method of the double-layer linkage closed-loop rope system mechanism, and the double-layer rope system is ensured not to loosen and lose effectiveness. Meanwhile, the rope tensioning force during the operation of the mechanism is accurately controlled through the winding force value in the rope winding process, and the problem that the rope tensioning force cannot be adjusted after rope winding is solved.
Through the adjustment of the traction point component, the problems of force application and rope tension maintaining when the upper layer of ropes are closed are solved, and the ropes are installed not side by side and are not overlapped.
Drawings
FIG. 1 schematically illustrates a flow chart of a double linkage closed loop tether installation method according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a double-linkage closed-loop tether mechanism in a double-linkage closed-loop tether installation method according to an embodiment of the present invention;
FIG. 3 is a schematic view showing the fixing of the rope-fixing ends of the driving wheel assembly and the winding wheel assembly in the double-linkage closed-loop rope system installation method according to the embodiment of the present invention;
fig. 4 is a schematic view showing a partial structure of the guide wheel assembly 2 in the double-linkage closed-loop tether mounting method according to the embodiment of the present invention;
FIG. 5 is a schematic representation of the axle of the drive wheel assembly in a double linkage closed loop tether mounting method according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of the structure of the pulling point assembly in the double-linkage closed-loop tether installation method according to one embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the attachment of the tether securing end of the tow point assembly in a double linkage closed loop tether installation method in accordance with one embodiment of the present invention;
FIG. 8 schematically illustrates a tether line after the rope is wound by the wedges in a double linkage closed loop tether line installation method in accordance with one embodiment of the present invention;
fig. 9 is a schematic structural view of a traction tool in the double-layer linkage closed-loop rope system installation method according to the embodiment of the invention.
Detailed Description
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 embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer" are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience in describing and simplifying the description, and is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore the terms described above are not to be construed as limiting the invention.
The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.
According to the concept of the invention, aiming at the problem of double-layer rope installation in the double-layer linkage closed-loop rope system mechanism, the installation method of the invention designs the rope winding sequence, the rope winding traction direction and the rope length reservation, and simultaneously considers the rope system tension force generated by the rope winding and unwinding difference when the double-layer linkage closed-loop rope system mechanism operates in the installation process, thereby realizing the accurate control of the double-layer rope system tension force and simultaneously ensuring that the double-layer rope system does not loosen and lose efficacy.
As shown in fig. 1, the double-linkage closed-loop tether attaching method according to the present embodiment includes the steps of:
firstly, calculating the rope retracting difference of a driving wheel assembly and a winding wheel assembly in the double-layer linkage closed-loop rope tying mechanism.
The structure of the double-layer linkage closed-loop tether mechanism is shown in fig. 2. The number of the upper wheel ropes of the winding wheel assembly of the double-layer linkage closed-loop rope tying mechanism is the same as that of the lower wheel ropes of the driving wheel assembly, the number of the lower wheel ropes of the winding wheel assembly is also the same as that of the upper wheel ropes of the driving wheel assembly, and the number of the upper wheel ropes of the winding wheel assembly is smaller than that of the upper wheel ropes of the driving wheel assembly, namely the number of the lower wheel ropes of the driving wheel assembly is smaller than that of the lower wheel ropes of the winding wheel assembly. Taking the rope system of the lower layer as an example, in the initial state of installing the double-layer linkage closed-loop rope system mechanism, the gyration radius R1 of the lower wheel of the driving wheel assembly is the sum of the radius R of the rope groove of the lower wheel of the driving wheel assembly and the diameter h of the rope system wound on the lower wheel of the driving wheel assembly for multiple circles. The radius of gyration R2 of the lower wheel of the winding wheel assembly is the sum of the radius R of the rope groove of the lower wheel of the winding wheel assembly and the diameter h of the rope system wound on the lower wheel of the winding wheel assembly for a plurality of circles. When the lower wheels of the driving wheel assembly and the winding wheel assembly rotate at the same time for alpha degrees, the difference between the rope receiving amount of the lower wheel of the driving wheel assembly and the rope releasing amount of the lower wheel of the winding wheel assembly is the rope receiving and releasing difference. The rope winding and unwinding difference is as follows:
Figure BDA0003394389850000081
as shown in fig. 2, the upper and lower rope windings of the winding wheel assembly and the driving wheel assembly have different numbers of turns, and the tension of the upper and lower ropes is varied. The tension of the upper rope system is adjusted through a torsion spring arranged on an upper wheel of the winding wheel assembly, and the tension of the lower rope system is adjusted through a compression spring arranged on a lower wheel of the guide wheel assembly. The number of the guide wheel assemblies may be plural, and in this embodiment, two guide wheel assemblies are provided, and only one compression spring is provided on the lower wheel of the guide wheel assembly 2 in fig. 2. The structure and arrangement of the compression spring are shown in fig. 4. Because the tension of the upper layer of ropes is the same as that of the lower layer of ropes, and the deformation of the pressure spring is convenient to measure, the change of the tension of the upper and lower ropes is reflected by the deformation of the pressure spring.
When the double-layer linkage closed-loop rope system mechanism starts to operate, before each wheel rotates for one circle, the rotation radius is unchanged, the rope receiving amount is smaller than the rope releasing amount, the rope receiving and releasing difference is increased along with the increase of the rotation angle of each wheel and is linearly changed, the deformation amount of the pressure spring is reduced along with the increase of the rotation angle of each wheel to adjust, and the tension force of the control rope system is also reduced. When each wheel rotates for one circle, the rope receiving and releasing difference reaches the maximum, and the rope tension reaches the minimum. When each wheel rotates for the second circle, the turning radius is opposite to the turning radius, the rope winding amount is larger than the rope unwinding amount, the rope winding and unwinding difference is increased along with the increase of the turning angle, and the rope system tension is increased along with the adjustment of the pressure spring.
And secondly, calculating the deformation of a pressure spring of a guide wheel assembly in the double-layer linkage closed-loop rope system mechanism according to the rope winding and unwinding difference. According to the maximum rope receiving and releasing difference delta generated in the running process of the double-layer linkage closed-loop rope system mechanism, calculating the deformation delta L of the pressure spring when the maximum tension of the rope system is reduced to the minimum tension as follows:
Figure BDA0003394389850000091
wherein theta represents an included angle between ropes at two ends of the lower wheel of the guide wheel assembly.
And setting a minimum stress F 'of the compression spring, and calculating the maximum stress of the compression spring to be F = F' + K.DELTA.L according to the deformation amount and the rigidity of the compression spring, wherein K represents the elastic coefficient of the compression spring.
And then, calculating the rope winding force of the double-layer linkage closed-loop rope system mechanism according to the deformation of the pressure spring. And selecting the minimum pressure spring force and the maximum pressure spring force in the working range of the pressure spring according to the stiffness curve of the pressure spring and the maximum deformation delta L of the pressure spring, thereby determining the corresponding deformation of the pressure spring. And calculating the rope winding force by taking the maximum pressure spring force F and the maximum pressure spring deformation delta L as the basis of rope winding control:
Figure BDA0003394389850000101
wherein, theta represents the included angle between the ropes at the two ends of the lower wheel (provided with the compression spring) of the guide wheel assembly.
Next, the upper and lower roping is installed according to the above-mentioned roping winding force. The rope winding force is applied to the upper rope system of the driving wheel assembly, and the rope is wound on the upper rope system of the driving wheel assembly and the upper rope system of the winding wheel assembly. The specific process is as follows:
and (3) respectively and independently winding the ropes for the upper wheels of the driving wheel assembly and the winding wheel assembly, wherein each wheel uses one rope, and the rope winding methods are consistent. The upper layer ropes comprise a first upper layer rope and a second upper layer rope. As shown in fig. 3, one end (or called as a fixed end) of the first upper rope system is tied along a rope groove arranged on the upper wheel of the winding wheel assembly and passes through a rope groove rope threading hole at the rope outlet direction tangent point of the upper wheel at the bottom of the rope groove, and then the end is fixed on the upper wheel of the winding wheel assembly by a pressing plate. And then an inner hexagonal wrench is inserted into the hexagonal hole of the upper wheel axle of the winding wheel assembly, the upper wheel of the winding wheel assembly is rotated along the direction opposite to the rope outlet direction of the upper wheel of the winding wheel assembly, and the first upper layer rope is tied on the upper wheel of the winding wheel assembly. After the rope is wound, a plurality of wedges are used to snap into the rope grooves to fix the first upper tier of ropes, as shown in fig. 8. Further, the upper wheel of the winding wheel assembly of the present embodiment rotates 3 times around the rope.
As shown in fig. 3, one end (or called as a fixed end) of the second upper rope system is tied and fixed on the upper wheel of the driving wheel assembly by a pressing plate after the rope is tied along the rope groove of the upper wheel of the driving wheel assembly and passes through the bottom of the rope groove and the rope groove rope threading hole at the tangent point of the rope outlet direction of the upper wheel. As shown in fig. 2, the other end of the rope passes through a tension swing rod arranged on the driving wheel assembly along the rope outlet direction of the upper wheel of the driving wheel assembly and horizontally passes through a fixed pulley to draw and wind a rope winding force F Winding machine Weights of the same weight. As shown in fig. 5, an inner hexagonal wrench is inserted into the hexagonal hole of the upper wheel axle of the driving wheel assembly, the upper wheel of the driving wheel assembly is rotated in the direction opposite to the direction in which the upper wheel of the driving wheel assembly is out of the rope, and the initial position of the rotation angle of the tension swing rod is marked at the same time, so that the second upper rope is tied around the upper wheel of the driving wheel assembly. After the rope is wound, a plurality of wedges are clamped into the rope grooves to fix the second upper layer of ropes. Further, the upper wheel of the drive wheel assembly of the present embodiment rotates 5 revolutions around the rope.
Then, a rope winding force is applied to the lower rope system of the driving wheel assembly and the winding wheel assembly to wind the lower rope system. The specific process is as follows:
the lower rope is tied by one rope. One end (or called as a fixed end) of the lower layer rope system is wound on the lower wheel of the winding wheel assembly by using the same rope winding method as the upper wheel of the winding wheel assembly, the wound lower layer rope system is fixed by using a plurality of wedges, and the lower wheel of the winding wheel assembly is fixed by using process screws and is limited to rotate. Further, the lower wheel of the winding wheel assembly of the present embodiment rotates 5 rounds around the rope.
The other end of the lower layer rope system bypasses the lower wheel of the guide wheel component along the rope outlet direction of the lower wheel of the winding wheel component, passes through the rope groove rope penetrating hole at the bottom of the rope groove and at the tangent point of the rope outlet direction of the lower wheel along the rope groove of the lower wheel of the driving wheel component, is cut off and knotted after the first rope length K1 is reserved, the lower wheel of the driving wheel component is fixed by using a process screw and is limited to rotate, and the knotted other end (or called as a fixed end) is fixed on the lower wheel of the driving wheel component by using a pressing plate. Wherein, the starting point of reserving first rope length K1 is counted from the rope groove rope threading hole, and the specific calculation mode is as follows:
K1＝2πR+2π(R+h)+2π(R+2h)
wherein R represents the radii of the upper and lower wheels of the winding wheel assembly and the upper and lower wheels of the driving wheel assembly, and h represents the diameters of the ropes of the first upper, second upper and lower roping.
All the technical screws are removed, the lower wheels of the winding wheel assembly and the driving wheel assembly are fixedly removed, the technical rope is tied in the middle of the lower layer rope system to pass through the fixed pulley along the rope outlet direction, and the winding force F of the technical rope and the winding rope is drawn Winding machine Weights with the same weight are inserted into the hexagonal hole of the lower wheel shaft of the driving wheel assembly by using an inner hexagonal wrench, and the lower wheel of the driving wheel assembly is rotated in the opposite direction of the rope outlet of the lower wheel of the driving wheel assembly until the maximum deformation of the pressure spring is delta L. Further, the lower wheel of the drive wheel assembly of the present embodiment rotates 3 times around the rope.
Finally, the upper rope system of the driving wheel assembly and the winding wheel assembly is closed.
As shown in fig. 2, the other end of the first upper rope system is wound around the upper wheel of the guide wheel assembly, and the clamping pieces (as shown in fig. 9) at the two ends of the traction tool are used for applying force to the other end of the first upper rope system and the other end of the second upper rope system at the installation position of the traction point assembly, so that the tensioning swing rod is restored to the initial position of the mark.
And respectively cutting off and knotting the other ends of the first upper layer rope system and the second upper layer rope system after reserving a second rope length K2 (the starting point of the reserved rope length is counted from the edge of the rope threading hole) along the rope threading holes at the bottoms of the two rope grooves of the winding seats of the traction point component. As shown in fig. 7, the other ends of the knotted first upper rope and second upper rope are respectively fixed to a first winding seat (rope winding seat 1 shown in fig. 6) and a second winding seat (rope winding seat 2 shown in fig. 6) of the pulling point assembly, and then the first winding seat and the second winding seat are rotated in opposite directions of the outlet ropes of the first winding seat and the second winding seat by the same number of turns and combined together, and the pulling point assembly is fixed by using the cover plate and the connecting plate. The rope system installation is not parallel and overlapped.
Further, the first winding seat and the second winding seat of the present embodiment both rotate 3 rounds around the rope, and the reserved second rope length K2 is:
K2＝2πR'+2π(R'+h)+2π(R'+2h)
wherein R' represents the radius of the first winding seat and the second winding seat, and h represents the diameter of the ropes of the first upper roping and the second upper roping.
By the installation method of the double-layer linkage closed-loop rope tying mechanism, the problem of installation and adjustment of the rope tying mechanism of the electric cabin door is solved, and the rope tying mechanisms are installed not side by side and are not overlapped. Meanwhile, the rope tensioning force during the operation of the mechanism is accurately controlled through the winding force value in the rope winding process, and the problem that the rope tensioning force cannot be adjusted after rope winding is solved.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and it is apparent to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A double-layer linkage closed-loop rope system installation method comprises the following steps:
a. calculating the rope retracting difference of a driving wheel assembly and a winding wheel assembly in the double-layer linkage closed-loop rope tying mechanism;
when the lower wheels of the driving wheel assembly and the winding wheel assembly rotate simultaneously, the rope receiving and releasing difference is the difference between the rope receiving amount of the lower wheel of the driving wheel assembly and the rope releasing amount of the lower wheel of the winding wheel assembly, and is as follows:
Figure FDA0004088719180000011
wherein R1 represents a radius of gyration of a lower wheel of the drive wheel assembly, R2 represents a radius of gyration of a lower wheel of the winding wheel assembly, and α ° represents a rotation angle of the lower wheels of the drive wheel assembly and the winding wheel assembly;
b. calculating the deformation of a spring of a guide wheel assembly in the double-layer linkage closed-loop rope system mechanism according to the rope receiving and releasing difference;
the spring does a pressure spring that sets up on the lower round of leading wheel subassembly, the maximum deflection of pressure spring is:
Figure FDA0004088719180000012
wherein, delta represents the maximum rope receiving and releasing difference, and theta represents the included angle between the ropes at the two ends of the lower wheel of the guide wheel component;
c. setting the minimum stress F' of the spring, and calculating the maximum stress F of the spring according to the deformation of the spring and the rigidity of the spring;
the maximum stress of the pressure spring is F = F' + K.DELTA.L, wherein K represents the elastic coefficient of the pressure spring;
d. calculating the rope winding force of the double-layer linkage closed-loop rope system mechanism according to the maximum stress F of the spring;
e. applying the rope winding force to the upper rope system of the driving wheel assembly, and winding the rope on the upper rope system of the driving wheel assembly and the winding wheel assembly;
f. applying the rope winding force to the lower rope system of the driving wheel assembly and the winding wheel assembly to wind the lower rope system;
g. and closing the rope of the upper layer of the rope system of the driving wheel assembly and the winding wheel assembly.
2. The method according to claim 1, characterized in that the rope winding force calculated from the maximum force F of the pressure spring is:
Figure FDA0004088719180000021
3. the method of claim 1, wherein step d comprises:
the upper rope system comprises a first upper rope system and a second upper rope system, one end of the first upper rope system is fixed on the upper wheel of the winding wheel assembly, the other end of the first upper rope system rounds a tensioning swing rod arranged on the winding wheel assembly along the rope outlet direction of the upper wheel of the winding wheel assembly, a weight with the same weight as the rope winding force of the rope winding is horizontally pulled through a fixed pulley, the upper wheel of the winding wheel assembly is rotated along the direction opposite to the rope outlet direction of the upper wheel of the winding wheel assembly, and the first upper rope system after rope winding is fixed;
fixing one end of the second upper rope system on an upper wheel of the driving wheel assembly, enabling the other end of the second upper rope system to pass through a tensioning swing rod arranged on the driving wheel assembly along the rope outlet direction of the upper wheel of the driving wheel assembly, horizontally passing through a fixed pulley, pulling a weight with the same weight as the rope winding force, rotating the upper wheel of the driving wheel assembly along the direction opposite to the rope outlet direction of the upper wheel of the driving wheel assembly, marking the initial position of the rotation angle of the tensioning swing rod, and fixing the second upper rope system after rope winding;
wherein the number of revolutions of the upper wheel of the winding wheel assembly is less than the number of revolutions of the upper wheel of the driving wheel assembly.
4. The method of claim 3, wherein step e comprises:
winding one end of the lower rope system on a lower wheel of the winding wheel assembly, horizontally passing the other end of the lower rope system through a fixed pulley along the rope outlet direction of the lower wheel of the winding wheel assembly, pulling a weight with the same weight as the rope winding force, rotating an upper wheel of the winding wheel assembly along the direction opposite to the rope outlet direction of the upper wheel of the winding wheel assembly, and fixing the lower wheel of the winding wheel assembly and the lower rope system after rope winding;
detaching weights, enabling the other end of the lower layer rope system to pass by the lower wheel of the guide wheel assembly along the rope outlet direction of the lower wheel of the winding wheel assembly, reserving a first rope length, fixing the lower wheel of the driving wheel assembly, using a process rope to fasten the lower layer rope system and horizontally pass through a fixed pulley, pulling the weight with the same weight as the rope winding force of the rope winding, rotating the lower wheel of the driving wheel assembly along the direction opposite to the rope outlet direction of the lower wheel of the driving wheel assembly until the lower layer rope system is tightened, and fixing the lower wheel of the driving wheel assembly and the lower layer rope system after rope winding;
the number of the rotating cycles of the lower wheel of the winding wheel assembly is larger than that of the lower wheel of the driving wheel assembly, the number of the rotating cycles of the lower wheel of the winding wheel assembly is the same as that of the upper wheel of the driving wheel assembly, and the number of the rotating cycles of the upper wheel of the winding wheel assembly is the same as that of the lower wheel of the driving wheel assembly.
5. The method according to claim 4, characterized in that the upper wheel of the winding wheel assembly and the lower wheel of the driving wheel assembly are both rotated for 3 revolutions, the lower wheel of the winding wheel assembly and the upper wheel of the driving wheel assembly are both rotated for 5 revolutions, and the reserved first rope length is:
K1＝2πR+2π(R+h)+2π(R+2h)
wherein R denotes radii of the upper and lower wheels of the winding wheel assembly and the upper and lower wheels of the driving wheel assembly, and h denotes diameters of ropes of the first upper, second upper, and lower ropings.
6. The method of claim 4, wherein step f comprises:
enabling the other end of the first upper rope system to bypass the upper wheels of the two guide wheel assemblies, and applying force to the other end of the first upper rope system and the other end of the second upper rope system by using a traction tool to enable the tensioning swing rod to return to the initial position;
and respectively fixing the other ends of the first upper layer rope system and the second upper layer rope system after reserving a second rope length on a first winding seat and a second winding seat of a traction point assembly, and then respectively rotating the first winding seat and the second winding seat in the opposite directions of the rope outlet of the first winding seat and the second winding seat by the same number of circles to fix the traction point assembly.
7. The method according to claim 6, characterized in that said first winding seat and said second winding seat rotate for 3 revolutions and said reserved second rope length is:
K2＝2πR'+2π(R'+h)+2π(R'+2h)
wherein R' represents a radius of the first winding seat and the second winding seat, and h represents a diameter of the ropes of the first upper roping and the second upper roping.
8. Method according to any of claims 3-7, characterized in that the fixing of the upper or lower roping on the wheel is: and fixing the fixed end of the upper layer rope system or the lower layer rope system by using a pressing plate after knotting, wherein the fixed end of the upper layer rope system or the lower layer rope system passes through a rope groove at the bottom of the rope groove along a rope groove on the wheel and is positioned in a rope groove rope threading hole at a tangent point of the rope outlet direction of the wheel.
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