CN216784741U

CN216784741U - Steel wire rope traction device and logistics transmission system

Info

Publication number: CN216784741U
Application number: CN202121683789.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shanghai Louda Logistics Technology Center
Current assignee: Shanghai Louda Logistics Technology Center
Priority date: 2021-06-29
Filing date: 2021-07-23
Publication date: 2022-06-21
Anticipated expiration: 2031-07-23

Abstract

The application provides a draw gear and commodity circulation transmission system. The traction device of the steel wire rope comprises a steel wire rope ring and a plurality of driving devices. The annular path formed by the steel wire rope ring is divided into at least two sections of steel wire rope sections; each steel wire rope section is provided with at least one stress piece fixedly connected with the steel wire rope. The number of the plurality of driving devices is the same as that of the steel wire rope sections, and one driving device is correspondingly arranged in each steel wire rope section; each driving device is provided with a driving piece which can be contacted with the stressed piece and can drive the stressed piece to move. And the plurality of driving devices sequentially drive one stressed member in each steel wire rope section in turn according to the circumferential direction so as to enable the steel wire rope to continuously rotate. This application can realize the continuous circumferential direction of wire rope through the atress piece of the irregular interval of drive.

Description

Steel wire rope traction device and logistics transmission system

Technical Field

The application relates to the technical field of logistics transmission equipment, in particular to a steel wire rope traction device and a logistics transmission system.

Background

At present, two modes of steel wire rope traction are available: (1) winch: the traction device is mainly used for traction of a single load and is used for unidirectional traction and gravity return. (2) Gear-like traction: certain structures are fixed on the steel wire rope at equal intervals to serve as teeth, structures capable of hanging the teeth on the steel wire rope are uniformly distributed on the driving gear, and when the gear rotates, the teeth on the steel wire rope continuously enter and exit the gear to complete steel wire rope driving.

In the case of using the winch, the winch must stop when rotating to the stressed object, and continuous traction of traction type logistics cannot be realized. In a gear-like traction configuration, the traction achieved by the wire rope comes from the force of the "teeth" on the wire rope. The teeth on the steel wire rope are driven to move by the driving mechanism so as to realize the continuous rotation of the steel wire rope, and further realize the continuous traction of traction type logistics.

In the traction structure of the gear-like wheel, teeth on a steel wire rope are usually arranged at equal intervals, the elasticity of the steel wire rope is large, and the length of the steel wire rope can also be obviously changed in the long-time running process of the traction device. As the engagement condition of the "teeth" and the driving mechanism gradually deviates from the original design condition, the engagement process of the "teeth" can generate faults of noise, vibration, tooth clamping, tooth jumping and the like. Meanwhile, because the extension lengths of the steel wire ropes are different under different stress conditions, the driving mechanism can drive the teeth on the steel wire ropes accurately due to the change of the distance, so that the reliability of the traction structure is low, later maintenance is required to be carried out continuously, and the production efficiency is reduced while the production cost is improved.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a steel wire rope traction device, which can continuously traction a steel wire rope without being limited by the distance between teeth on the steel wire rope, and has the characteristics of simple power, low cost and high reliability.

In a first aspect, an embodiment of the present application further provides a traction device, including:

the steel wire rope ring is characterized in that an annular path formed by the steel wire rope ring is divided into at least two steel wire rope sections; each steel wire rope section is provided with at least one stress piece fixedly connected with the steel wire rope,

the number of the driving devices is the same as that of the steel wire rope sections, and one driving device is correspondingly arranged in each steel wire rope section; each driving device is provided with a driving piece which can be contacted with the stressed piece and can drive the stressed piece to move;

the driving devices sequentially drive one stressed part in each steel wire rope section in turn according to the circumferential direction so as to enable the steel wire rope to rotate continuously.

In one embodiment, the force-bearing member is a square block, a cylinder or a sphere, and the wire rope extends through the force-bearing member.

In one embodiment, each of the driving devices comprises:

the first traction track and the second traction track are arranged in parallel at a preset distance in a first direction, and the steel wire rope is segmented and positioned below or above a gap between the first traction track and the second traction track; the first direction is horizontally vertical to the advancing direction of the steel wire rope in sections;

the driving piece is arranged in a gap between the first traction track and the second traction track, and two sides of the driving piece are respectively connected with the first traction track and the second traction track; the driving member is provided with a contact portion engaged with the force receiving member.

In one embodiment, the first traction track and the second traction track are both chain structures.

In one embodiment, the driver comprises:

the first side plate is connected with a pin shaft at the side edge of the first traction track;

the second side plate is connected with a pin shaft at the side edge of the second traction track;

a transverse plate connecting the first side plate and the second side plate in a transverse direction;

the first side plate, the second side plate and the transverse plate are provided with at least one contact part abutted against the stress piece, and the bottom end of the transverse plate is higher than the steel wire rope.

In one embodiment, the first side plate, the second side plate and the transverse plate are provided with a slot structure which is engaged with a force bearing surface of the force bearing member, and the slot structure constitutes the contact portion.

In one embodiment, a first position sensor is arranged on the annular path formed by the steel wire rope ring, and the position of the first position sensor is the coordinate origin position of the annular path;

and a second position sensor is arranged in the working stroke of the driving piece, and the arrangement position of the second position sensor is the base point position of the driving piece in the working stroke.

In one embodiment, a guiding wheel set is arranged on the wire rope section with the arc-shaped path for guiding and driving the wire rope section.

In one embodiment, the guide wheel set is provided with a groove matched with the stress element.

According to a second aspect of the application, a logistics transportation system is provided, which comprises a transportation rail, a bearing trolley and the traction device;

the steel wire rope ring in the traction device is parallel to the transmission path of the transmission track; the bearing trolley is connected with a stressed member on the traction device through a connecting piece;

under the traction of the traction device, the bearing trolley moves on the transmission track.

In one embodiment, the transfer track is a linear track on one side of the wire rope loop, or an endless track.

In one embodiment, the logistics transfer system further comprises: and the steel wire rope position compensation device is matched with the connecting piece and used for limiting the matching relation of the connecting piece and the stress element so that the connecting piece can pull the bearing trolley to move in two opposite directions along the transmission path.

According to the technical scheme, the steel wire rope traction mode in the application is different from a winch and a gear-like traction structure, a plurality of stress parts fixedly connected with the steel wire rope are arranged on the steel wire rope, the steel wire rope forms a closed ring shape and is divided into a plurality of steel wire rope sections, at least one stress part can be matched on each steel wire rope section, a driving device is arranged on a path corresponding to at least two steel wire rope sections which are separated from each other by a preset distance, and the driving devices work in turn to enable the steel wire rope to rotate uninterruptedly. Therefore, the steel wire rope traction mode in the application has the following beneficial effects:

1. the rotation of the steel wire rope can be realized only by driving the stress piece, so that the structure of the corresponding traction device is simpler.

2. The two driving devices with a preset distance can realize the rotation of the closed annular steel wire rope, when the perimeter of the steel wire rope is longer, the number of the driving devices can be properly increased, each driving device drives a stressed member in the steel wire rope section where the driving device is located, the steel wire rope realizes uninterrupted rotation through the relay of the driving devices, and the complexity and the dead weight of the steel wire rope traction device can be greatly reduced due to the fact that only a plurality of driving devices are needed for relay work.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic flow chart illustrating a method for pulling a steel wire rope according to an embodiment of the present disclosure;

fig. 2 shows a schematic diagram of the method of pulling a steel cord;

FIG. 3 is a schematic diagram illustrating a traction device according to an embodiment of the present disclosure;

FIG. 4 is a front view of a drive device according to an embodiment of the present application;

FIG. 5 is a top view of a portion of the drive mechanism of FIG. 4;

FIG. 6 is a left side view of a partial structure of the driving apparatus shown in FIG. 4;

FIG. 7 is a schematic structural diagram illustrating a drive member according to an embodiment of the present application;

fig. 8 is a schematic partial structure diagram of a logistics transportation system according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

Fig. 1 is a schematic flow chart of a method for drawing a steel wire rope according to an embodiment of the present application. Referring to fig. 1, the method for drawing a steel wire rope includes the following steps:

s101: connecting the steel wire rope end to form a steel wire rope ring, wherein the steel wire rope ring can rotate circumferentially; and a plurality of stress parts fixedly connected with the steel wire rope are circumferentially distributed on the steel wire rope ring.

S102: dividing an annular path formed by the steel wire rope rings into at least two steel wire rope sections;

s103: and sequentially driving one stressed member in each steel wire rope section in turn according to the circumferential direction so as to enable the steel wire rope to continuously rotate.

Fig. 2 shows a schematic diagram of the method of pulling a steel cord. Referring to fig. 2, the steel wire rope is connected end to form a steel wire rope ring, the steel wire rope ring can rotate in the circumferential direction, and a plurality of stress pieces are uniformly distributed on the steel wire rope ring. Each steel wire rope section can be provided with at least one stressed part, a driving device is arranged on a path corresponding to each steel wire rope section, and each driving device is provided with a driving part which can be in contact with the stressed part and can drive the stressed part to move. Wherein, the driving part of the driving device corresponding to each steel wire rope section is contacted with a stressed part on the steel wire rope section. In fig. 2, the wire rope loop is divided into two wire rope sections with the dividing points D1 and D2.

The drives on each rope segment comprise a service stroke S1 and an idle stroke S2. In the operation stroke S1, the driving track of the driving piece for driving the stress piece is parallel to the steel wire rope section where the stress piece is located; in the idle return stroke S2, the driver returns to the start point a of the work stroke S1 at a predetermined speed from the end point B of the work stroke S1. The working stroke S1 of each drive element includes a catch-up segment AC, a drive segment CD and a break-away segment DB. The movement sequence of the driving member in the working stroke S1 is from a to B, i.e., the catching up section AC, the driving section CD, and the disengaging section DB are arranged in chronological order.

In the catching section AC, the driving member 1 starts to catch up with a force-receiving member on the wire rope section D1D2 from the starting point a, when reaching point C, the driving member 1 contacts with the force-receiving member and pushes the force-receiving member to move so as to move the wire rope at a first speed, when the driving member 1 reaches point D, the driving member 2 in the wire rope section D2D1 as the next working period starts to catch up with a force-receiving member on the wire rope section D2D1 from point a', and when reaching point C, the driving member 1 reaches point B, that is, the working stroke of the driving member 1 is finished. The driving member 2 pushes the force-receiving member to move at the driving section C 'D' so that the steel wire rope continues to move at the first speed, and during the driving member 2 moves at the driving section C 'D', the driving member 1 quickly returns to the starting point a through the idle return S2. When the driving element 2 reaches the point D ', the driving element 1 starts to catch up a force-bearing element on the segment D1D2 from the starting point a, and before reaching the point C, the driving element 1 contacts the force-bearing element and pushes the force-bearing element to move so as to move the steel wire rope at the first speed, and after that, the driving element 2 reaches the point B' and the working stroke of the driving element 2 is finished. The driving part 1 and the driving part 2 circularly and continuously drive the steel wire rope to continuously rotate circumferentially at a first speed according to the working process.

According to the working process, for two steel wire rope sections with adjacent working time, the time of ending the catching-up section in the next steel wire rope section is the time of starting the separation section in the previous steel wire rope section.

In order to separate the driving part from the stressed part in the separation section in the previous steel wire rope section, the adopted method comprises the following steps: after the driving part in the next steel wire rope subsection catches up with the stressed part, the driving part in the previous steel wire rope subsection is separated from the stressed part through the speed difference between the steel wire rope and the driving part in the previous steel wire rope subsection. The method can be realized in two ways, and specifically comprises the following steps:

in one embodiment, the driving member corresponding to the next wire rope segment is decelerated to a first speed and drives the wire rope to move at the first speed, the driving member in the previous wire rope segment is moved at a third speed which is lower than the first speed, the speed of the stressed member in the previous wire rope segment is also the first speed, and the moving speed of the driving member in the wire rope segment is lower than that of the stressed member, so that the stressed member is separated from the driving member by forward movement.

In another embodiment, the drive member for the next wire rope segment drives the wire rope to move at the second speed and the drive member in the previous wire rope segment moves at the first speed. The second speed is greater than the first speed, and after the force-receiving member in the previous wire rope segment is separated from the driving member by the forward movement and the driving member in the previous wire rope segment reaches the end point of the separation segment (point B in fig. 2), the driving member in the next wire rope segment is decelerated and the wire rope is moved at the first speed.

In order to enable the steel wire rope to continuously rotate circumferentially, the configuration rule of the stress piece is as follows: when the drive of the drive element in the preceding wire rope section is finished, at least one force-receiving element has moved into the next wire rope section and the drive element in the wire rope section has caught up to the force-receiving element.

In a possible embodiment, the endless path formed by the wire rope loop is divided into two wire rope sections, corresponding to which the number of drive elements is 2. In this embodiment, the conditions to be satisfied between the driving member and the force receiving member are:

let the operation stroke of the driving member 1 be M1, the operation stroke of the driving member 2 be M2, the distance from the next stressed member to the stressed member 1 be L1, the distance from the next stressed member to the stressed member 2 be L2, and so on.

The sum of the working strokes of two adjacent driving pieces is larger than the maximum value of the distance between two driven force-bearing pieces, namely M1+ M2> Max (L1+ L2+ … … + Li).

Meanwhile, the center distance of the working strokes of two adjacent driving pieces is more than or equal to 2 times of the distance between two driven stress pieces. Namely, the 3 rd stress piece exists between two adjacent driving pieces, namely at least 4 stress pieces need to be distributed on the annular steel wire rope.

In one possible embodiment, the entire wire rope loop is divided into straight and curved segments, which are used as the straight and curved paths of the wire rope segments, respectively. When the driving device is arranged on the linear path, the driving track of the driving piece corresponding to the steel wire rope section is parallel to the linear path. When the driving device is arranged on the arc-shaped path, the driving part track of the driving part corresponding to the steel wire rope section is concentrically arranged with the arc-shaped path.

In a possible embodiment, it is also possible to provide that the section of the steel cord comprises a straight path and an arc path. Where the cord section comprises a straight path and an arcuate path, the drive means may be provided on the straight path only, or on the arcuate path only, or on a mixture of the straight path and the arcuate path. When the steel wire rope section comprises an arc-shaped path, the steel wire rope section is guided and driven by adopting a wheel type structure.

In one possible implementation scheme, a point is selected as a coordinate origin on a circular path formed by the steel wire rope ring, and the position coordinates of each stress element on the steel wire rope relative to the coordinate origin are obtained in real time. When the driven force-receiving member enters the coordinate range of the corresponding steel wire rope section, the driving member in the corresponding steel wire rope section starts to catch up until the driven force-receiving member is in contact fit with the force-receiving member.

In the implementation process, the origin of coordinates is selected on the annular path of the steel wire rope ring, the stressed part can be accurately positioned by marking the position coordinate of the stressed part relative to the origin of coordinates, after the position of the stressed part can be accurately determined, the driving part can accurately catch up with the stressed part, the catching-up speed of the driving part can be accurately determined through the position information of the stressed part and the corresponding time information, and therefore accurate catching up with the stressed part is achieved.

In one possible implementation, a base point is set in the working stroke S1 of each driver, and the distance from the driver to the base point is set as the coordinate of the driver; the base point and the coordinate origin point have a preset positional relationship. In the present application, the coordinates of the contact point and the disengagement point of the driving member with the force-receiving member in the working stroke S1 can be determined from the position coordinates of the driving member and the moving distance of the driving member, and the coordinate value of the force-receiving member can also be determined. The distance between the contact point coordinate and the disengagement point coordinate is the work stroke S1 of the drive member.

The specific calculation method of the coordinate values of the stress piece comprises the following steps: and after each stress element passes through the origin of coordinates, determining the instantaneous coordinates of the stress element relative to the origin of coordinates according to the sum of the moving distances of the driving elements of all the driving devices in the continuous operation time after the time point. For example, when the target stress piece passes through the origin of coordinates, the coordinate value of the origin coordinate system is 0; at this time, the coordinate of the current driving part in the first base point coordinate system is a point (S1), and after the time t1, the coordinate value of the current driving part in the base point 1 coordinate system is a point (S2), and the coordinate value of the target stressed part in the origin coordinate system is (S2-S1); after t2 time, the first driving element moves the coordinate S3 in the first base point coordinate system, the second driving element is driven in succession, and in the second base point coordinate system, the second driving element moves from S '1 to S' 2, and at this time (time t 2), the coordinate value of the target stressed element in the origin coordinate system is (the coordinate value of the driving element 1 which goes through + the coordinate value of the driving element 2 which goes through) ((S3-S) + (S '2-S' 1);).

In the above implementation process, a base point is set in the working stroke S1 of each driving member, and the base point and the origin of coordinates set on the wire rope ring have a predetermined positional relationship, so that a corresponding relationship is established between each driving member and the wire rope ring. After the wire rope ring and the driving member are relatively fixed, the coordinate origin on the wire rope ring and the base point of the driving member are relatively determined, and then the contact point coordinate and the separation point coordinate of the driving member and the stressed member in the operation stroke S1 can be judged according to the position coordinate of the stressed member, the position coordinate of the driving member and the preset moving distance of the driving member. Meanwhile, when the stress piece moves along with the steel wire rope ring on the steel wire rope ring, the coordinate of the stress piece is continuously changed, namely the instantaneous coordinate relative to the origin of coordinates is continuously changed, and the instantaneous coordinate can be adjusted in real time through data obtained by a position sensor and the like. Meanwhile, the instantaneous coordinate of the stressed part is determined by the moving distance of the driving part of the driving device, so that the coordinate of the stressed part can be corrected in real time, and the stressed part can be controlled more accurately and stably.

According to the technical scheme, the annular path formed by the steel wire rope ring is divided into at least two steel wire rope sections by the traction method, and the driving device sequentially drives one stress piece in each steel wire rope section in turn according to the circumferential direction so as to enable the steel wire rope to continuously rotate. The distance between the stressed parts in the steel wire rope section can be unequal, and the stressed parts are actively pursued by the driving device to realize the driving of the stressed parts. Therefore, the traction method can eliminate the interference of the stress parts with irregular intervals on the steel wire rope on the driving device, and can realize the continuous circumferential rotation of the steel wire rope.

According to another aspect of the present application, there is also provided a traction device. Fig. 3 is a schematic structural diagram of a traction device according to an embodiment of the present application. Referring to fig. 3, the traction device includes a wire rope loop 100 and a plurality of driving devices 200. Fig. 3 illustrates an example of 2 driving devices.

The wire rope loop 100 is guided by the guide pulley set 300 and tensioned by the guide pulley set 300. The endless path formed by the wire rope loop 100 is divided into at least two wire rope segments. Each steel wire rope segment is provided with at least one stress piece 400 fixedly connected with the steel wire rope. The number of the driving devices 200 is the same as that of the steel wire rope sections, and one driving device 200 is correspondingly arranged in each steel wire rope section; each driving device 200 is provided with a driving member capable of contacting the force-receiving member 400 and driving the force-receiving member 400 to move. The plurality of driving units 200 drive the wire rope to rotate according to any one of the above-described traction methods.

Fig. 4 is a front view of a partial structure of a driving device according to an embodiment of the present application. Fig. 5 is a partial structural plan view of the driving device shown in fig. 4. Fig. 6 is a left side view of a partial structure of the driving apparatus shown in fig. 4. Referring to fig. 4-6, the drive device 200 includes a first traction track 210, a second traction track 220, and a drive member 230.

The first traction rail 210 and the second traction rail 220 are spaced apart by a predetermined distance in the first direction and are arranged in parallel, and the wire rope segment is positioned below a gap between the first traction rail 210 and the second traction rail 220. Wherein, the first direction is horizontally vertical to the advancing direction of the steel wire rope. The driving member 230 is disposed in a gap between the first traction rail 210 and the second traction rail 220, and both sides thereof are connected to the first traction rail 210 and the second traction rail 220 through the hook pin 240, respectively. The driving member 230 is provided with a contact portion to be engaged with the force receiving member 400. The lowest height of the contact portion in the driving member 230 is lower than the highest height of the force receiving member 400, that is, the contact portion can contact the force receiving member 400 and push the force receiving member 400 to move forward during the movement of the driving member 230.

In the implementation process, the driving member 230 is disposed between and connected to the first traction track 210 and the second traction track 220, that is, the driving member 230 moves along with the two traction tracks during the movement of the two chain structures, and the moving speed of the first traction track 210 and the second traction track 220 is the moving speed of the driving member 230. When the contact part of the driving member 230 contacts with the force-receiving member 400 on the steel wire rope and can push the force-receiving member 400 to move, the steel wire rope fixedly connected with the force-receiving member 400 is pulled to move, and the moving speed of the driving member 230 is the moving speed of the steel wire rope. Therefore, after the contact portion contacts the force receiving member 400, the moving speed of the wire rope can be controlled by controlling the speed of the driving member 230.

In another possible embodiment of the driving device 200, the driving device 200 is the same as the constituent parts of the device shown in fig. 4 to 6, except that the steel cable is located above the gap between the first traction rail 210 and the second traction rail 220, and the highest height of the contact portion in the driving member 230 is higher than the lowest height of the force receiving member 400, i.e. the contact portion is ensured to be capable of contacting the force receiving member 400 and pushing the force receiving member 400 to move. The operation principle of other components in this embodiment is the same as that of the driving device 200 shown in fig. 4-6, and will not be described herein.

In a possible embodiment, the force receiving member 400 is a square block, a cylinder or a sphere, and the wire rope penetrates through the force receiving member 400. Correspondingly, the contact part and the force receiving member 400 are matched with the shape adopted by the force receiving member 400. If the force-receiving member 400 is a square block, the contact portion is a U-shaped groove; if the force-receiving member 400 is a cylinder or a sphere, the contact portion is a semicircular groove or a semicircular groove.

It should be noted that, in the present application, the shape of the force-receiving member 400 is not specifically limited, and the force-receiving member 400 may be in a regular shape or an irregular shape, as long as the contact portion is provided with a groove structure adapted to the shape of the force-receiving member 400.

In a possible embodiment, the steel cord segments are divided by the number of segments of the steel cord segments being equal parts of the steel cord rings 100.

In the implementation process, the wire rope ring 100 is divided equally, so that the driving time of the driving device 200 in each wire rope segment can be divided equally, the working stroke of each driving device 200 is set to be consistent, and the stroke calculation amount of the traction device for each driving device 200 is the same, so that the calculation amount in the traction device can be greatly reduced, and the control complexity is further simplified.

In one possible embodiment, the first traction track 210 and the second traction track 220 are both a double chain structure. The driving member 230 includes a first side plate, a second side plate and a cross plate. The first side plate is connected with a pin shaft at the side of the first traction track 210, and the second side plate is connected with a pin shaft at the side of the second traction track 220. The transverse plate is connected with the first side plate and the second side plate in the transverse direction. At least one clamping groove structure clamped with one end of the stress piece 400 is formed in the first side plate, the second side plate and the transverse plate; when the driving member 230 drives the force receiving member 400, the portion of the slot structure abutting against the force receiving member 400 constitutes a contact portion. When the driving member 230 is located above the wire rope, the bottom end of the cross plate is higher than the wire rope. When the driving member 230 is located below the wire rope, the top end of the cross plate is lower than the wire rope.

Fig. 7 is a schematic structural diagram of an actuating member according to an embodiment of the present application, and referring to fig. 7, the actuating member 230 includes a first side plate 231, a second side plate 232, and a transverse plate 233. The first side plate 231, the second side plate 232 and the transverse plate 233 are configured with two slot structures, and the two slot structures are opposite in the axial direction of the steel wire rope segment. This arrangement allows the driver 230 to effect separate driving in two opposite directions on the wire rope section.

In order to calibrate the origin of coordinates on the wire rope loop 100, in one possible embodiment, a first position sensor is arranged on the loop path formed by the wire rope loop 100, and the position of the first position sensor is the position of the origin of coordinates of the loop path. In order to calibrate the reference point on the working stroke of the driver 230, in one possible embodiment, a second position sensor is provided in the working stroke S1 of the driver 230, the position of the second position sensor being the reference point position of the driver 230 in the working stroke S1.

In a possible embodiment, the guide wheel set 300 guides the wire rope section of which the path is an arc-shaped path, and in a further embodiment, the guide wheel set 300 can also drive the wire rope section. In one embodiment, the guide wheel assembly 300 is provided with a groove adapted to the force receiving member 400. In this embodiment, the guide wheel set 300 can be driven to rotate, and since the guide wheel set 300 rotates, after the force-bearing member 400 is embedded into the groove of the guide wheel set 300, the sidewall of the groove applies force to the force-bearing member 400 to drive the force-bearing member 400 to move, and then the steel wire rope moves.

According to still another aspect of the application, a logistics transmission system is also provided. Fig. 8 is a schematic partial structure diagram of a logistics transportation system according to an embodiment of the application. Referring to fig. 8, the logistics transportation system includes a transportation rail 500, a carrying trolley 600 and a traction device of any one of the above-mentioned structures.

The wire rope loop 100 in the pulling device is parallel to the transfer path of the transfer rail 500. The load carrier 600 is connected to the load-bearing part 400 of the pulling device by means of a connecting element. Under the traction of the pulling device, the carrier trolley moves on the transport track 500.

In a possible embodiment, the transfer track is a linear track on one side of the wire rope loop 100, and may also be an annular track.

In a possible implementation manner, the logistics transportation system further comprises a steel wire rope position compensation device. The cable position compensation device cooperates with the connector for defining the mating relationship of the connector with the load-bearing member 400 such that the connector can pull the load-bearing trolley in both opposite directions along the transport path.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Claims

1. A traction device for a steel wire rope, characterized by comprising:

the steel wire rope ring is characterized in that an annular path formed by the steel wire rope ring is divided into at least two sections of steel wire rope sections; each steel wire rope section is provided with at least one stress piece fixedly connected with the steel wire rope,

2. The traction apparatus as claimed in claim 1, wherein the force receiving member is a square block, a cylinder or a sphere, and the wire rope passes through the force receiving member.

3. A towing attachment in accordance with claim 2, wherein each of said drive means includes:

4. A towing attachment in accordance with claim 3, wherein the first and second towing rails are each of a chain construction.

5. The towing attachment in accordance with claim 4, wherein the drive member includes:

6. The draft gear according to claim 5, wherein said first side plate, said second side plate and said cross plate are provided with a catch structure engaging with a force receiving surface of said force receiving member, said catch structure constituting said contact portion.

7. The traction apparatus according to claim 1, wherein a first position sensor is provided on the loop path formed by the wire rope loop, and the position of the first position sensor is a position of origin of coordinates of the loop path;

and a second position sensor is arranged in the working stroke of the driving piece, and the arranged position of the second position sensor is the base point position of the driving piece in the working stroke.

8. A towing attachment in accordance with any one of claims 1 to 7, characterised in that on the wire rope section following an arcuate path, there is provided a guide sheave assembly for guiding and driving the wire rope section.

9. The traction device as claimed in claim 8, wherein the guide wheel set is provided with a groove adapted to the force receiving member.

10. A logistics transport system comprising a transport track, a load carrier and a towing attachment as claimed in any one of claims 1 to 9; the steel wire rope ring in the traction device is parallel to the transmission path of the transmission track; the bearing trolley is connected with a stressed member on the traction device through a connecting piece;

11. The logistics transportation system of claim 10, wherein the transportation rail is a linear rail located at one side of the wire rope loop, or an annular rail.

12. The logistics transfer system of claim 10 or 11, further comprising: and the steel wire rope position compensation device is matched with the connecting piece and used for limiting the matching relation of the connecting piece and the stress element so that the connecting piece can pull the bearing trolley to move in two opposite directions along the transmission path.