Lifting system and window cleaning machine

Abstract

The utility model relates to a lifting system and a window cleaning machine. The winding drum mechanism comprises a rope winding drum and a driving device, a plurality of sub-areas are distributed in the axial direction of the rope winding drum, and a steel wire rope is wound in each sub-area. The rope pressing device comprises a plurality of pressing wheels; the rope distributing device comprises a plurality of rope distributing pulleys, and each rope distributing pulley correspondingly leads out the steel wire rope of the sub-area; the reciprocating mechanism comprises a two-way reciprocating lead screw arranged in parallel with the axis of the rope winding drum and a movable platform connected to the two-way reciprocating lead screw in a sliding mode and connected with the winding drum mechanism; the transmission mechanism is arranged between the rope winding drum and the two-way reciprocating lead screw and used for transmitting the torque of the rope winding drum to the two-way reciprocating lead screw so as to drive the winding drum mechanism to do reciprocating motion in the axial direction through the movable platform, and then the rope winding groove positions of the sub-areas can be aligned with the rope outlet positions of the rope distributing pulleys one by one. According to the utility model, the stability and the safety of system operation are improved, and the system is suitable for window cleaning equipment with larger front-end load.

Description

TECHNICAL FIELD

[0001] The utility model relates to a window cleaning machine technical field especially is a kind of hoisting system and window cleaning machine. BACKGROUND

[0002] As the important equipment of high-rise building maintenance, the main function of window cleaning machine is to realize the cleaning and maintenance of building outer wall by lifting mechanism driving platform up and down. Hoisting mechanism as the core component of window cleaning machine, it is directly related to the running efficiency and safety of equipment.

[0003] Traditional hoisting mechanism is mostly single rope drum or double rope drum, it is difficult to meet the safety and stable use requirement of window cleaning machine with large front-end load;And multiple rope drum is prone to disorder, slot jumping phenomenon in the process of steel wire rope release, which not only leads to uneven force of steel wire rope, shortens service life, but also may cause safety hazard due to knotting or rupture of rope. SUMMARY

[0004] Therefore, the utility model provides a kind of hoisting system and window cleaning machine, by setting up the rope drum of multiple ropes and cooperating with rope pressing device, reciprocating mechanism and other structures, effectively avoid the disorder of steel wire rope arrangement, stack rope and slot jumping phenomenon, ensure the orderly arrangement of steel wire rope, improve the stability and safety of system operation, applicable to the window cleaning machine equipment with large front-end load.

[0005] To solve the above technical problems, the utility model provides a kind of hoisting system, comprising:

[0006] Drum mechanism, including rope drum and the driving device of driving the rotation of rope drum, along the axial distribution of rope drum has including multiple sub-regions, and each sub-region is wound with steel wire rope;

[0007] Rope pressing device, including multiple press wheels, each press wheel is correspondingly pressed to the steel wire rope led out of sub-region;

[0008] Rope distribution device, set up in one side of rope pressing device, including multiple rope distribution pulleys, each rope distribution pulley is correspondingly led out the steel wire rope of sub-region;

[0009] Reciprocating mechanism, including bidirectional reciprocating screw arranged in parallel with the axis of rope drum, and movable platform is slidably connected to bidirectional reciprocating screw and connected with drum mechanism;

[0010] Transmission mechanism, set up between rope drum and bidirectional reciprocating screw, for transmitting the torque of rope drum to bidirectional reciprocating screw, to drive drum mechanism reciprocating movement along the axial direction by movable platform, and then make the position of winding rope groove of sub-region and the position of rope outlet of rope distribution pulley one-to-one alignment.

[0011] In an embodiment of the utility model, the rope pressing device comprises a plurality of rope pressing subunits, each of the rope pressing subunits comprises a rope pressing seat, a rotating arm rotatably connected to the rope pressing seat and used for mounting the pressing wheel, and a baffle located at the bottom of the pressing wheel, a rope groove is formed between the baffle and the bottom of the pressing wheel, a rope separating pulley is arranged at the rear side of each of the pressing wheels, and a guide pulley is arranged at the rear side of the rope separating pulley and used for leading the gathered steel wire rope out of the lifting equipment.

[0012] In an embodiment of the utility model, an even number of subareas are provided, a rope pressing beam parallel to the axis of the rope winding drum is mounted at the end of the rotating arm, and two pressing wheels are respectively mounted at the two ends of the rope pressing beam and press the steel wire ropes led out of the adjacent two subareas.

[0013] In an embodiment of the utility model, the rope pressing subunit further comprises a loose rope limiting device and a full rope limiting device, the loose rope limiting device comprises a loose rope limiting detection switch and a first detection pressing rod mounted on the rotating arm, the first detection pressing rod is perpendicular to the axis of the rotating arm, the full rope limiting device comprises a full rope limiting detection switch and a second detection pressing rod mounted on the rotating arm, the first detection pressing rod is parallel to the axis of the rotating arm, when the rotating arm rotates to a predetermined position in the direction close to the rope winding drum, the first detection pressing rod can contact the loose rope limiting detection switch, and when the rotating arm rotates to a predetermined position in the direction away from the rope winding drum, the second detection pressing rod can contact the full rope limiting detection switch.

[0014] In an embodiment of the utility model, the transmission mechanism comprises a first sprocket mounted at the axial end of the rope winding drum, a second sprocket mounted at the axial end of the bidirectional reciprocating lead screw, and a transmission chain mounted between the first sprocket and the second sprocket.

[0015] In an embodiment of the utility model, the chain breakage detection device comprises a bracket, a first rotating plate, a second rotating plate, a tension spring, and a chain breakage detection switch, the first rotating plate and the second rotating plate are respectively rotatably connected to the bracket and respectively correspondingly mounted with a first tension sprocket and a second tension sprocket, the first tension sprocket and the second tension sprocket are respectively pressed against the transmission chains on the two sides, the tension spring is mounted between the first rotating plate and the second rotating plate and provides a force for pressing the transmission chains, and the first rotating plate or the second rotating plate can contact the chain breakage detection switch when chain breakage occurs and the rotating plate or the second rotating plate rotates to a predetermined position.

[0016] In an embodiment of the utility model, still include the rope capacity detection device, the rope capacity detection device includes detection seat, install on the detection seat's limit screw rod, the detection block that slides and connects in the limit screw rod and along the limit screw rod length direction arrangement's multiple groups of capacity detection switch, the limit screw rod with the bidirectional reciprocating screw rod far from the axial end of transmission mechanism is connected.

[0017] In an embodiment of the utility model, the capacity detection switch includes a minimum steel wire rope reserved capacity position detection switch, a plurality of intermediate working position detection switches, and a maximum steel wire rope capacity position detection switch arranged in sequence along the direction of the bidirectional reciprocating screw rod.

[0018] In an embodiment of the utility model, it further includes a backup brake device installed at one end of the rope winding drum away from the driving device, which is used to brake the rope winding drum action, and the backup brake device includes a mechanical brake device.

[0019] The utility model also provides a window cleaning machine comprising the lifting mechanism.

[0020] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0021] The lifting system and the window cleaning machine have the following advantages: the bidirectional reciprocating screw rod and the synchronous reciprocating movement of the movable platform are arranged, so that the rope winding drum can reciprocate along with the movable platform in the axial direction during the winding and unwinding of the rope, the winding position of the rope winding drum is always one-to-one corresponding to the rope outlet position of the rope distribution pulley, the arrangement of the steel wire rope is effectively avoided to be disordered, overlapped, and staggered, the orderly arrangement of the steel wire rope is ensured, and the stability and safety of the equipment operation are improved.

[0022] The rope pressing device utilizes the cooperation of the pressing wheel and the baffle to form a rope outlet groove, and combines the rope distribution pulley and the guide pulley to reasonably distribute and guide the multiple steel wire ropes in the rope outlet direction, so that the steel wire ropes are arranged compactly and orderly, and the loose rope limiting device and the full rope limiting device in the rope pressing unit can detect and send signals in time under abnormal working conditions (such as loose rope, broken rope, or overfull rope groove), avoid dangerous events, and improve the reliability of the equipment.

[0023] The transmission mechanism (chain and sprocket) transmits the torque of the rope winding drum to the bidirectional reciprocating screw rod, realizes the reciprocating movement of the movable platform, and further drives the synchronous movement of the rope winding drum, the chain breakage detection device can detect in time when the chain breaks, and the system is stopped to avoid the disorder of the steel wire rope.

[0024] The rope capacity detection device can detect the remaining rope capacity and the reserved number of turns of the steel wire rope on the rope winding drum, ensure that at least 3 turns of the steel wire rope are reserved in the winding drum, and avoid risks.

[0025] The utility model discloses a rear -back brake device can immediately function when the speed reducer motor fails or overspeed, and mechanical type (second) brake rope winding drum prevents accidental falling.

[0026] The utility model discloses can arrange six steel wire ropes (select different quantity according to need) in good order, make it applicable to the window cleaning machine equipment needing three lifting points and the front end load being larger. This multi-rope parallel design meets the high load, high stability demand, improves the applicability of the device in the high -rise building cleaning and maintenance field. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to make the content of the utility model more easily be clearly understood, below according to the specific embodiment of the utility model and combining with the attached drawing, the utility model is further detailed.

[0028] Figure 1 It is the whole structure schematic diagram of one side of the utility model hoisting system.

[0029] Figure 2 It is the whole structure schematic diagram of the other side of the utility model hoisting system.

[0030] Figure 3 It is the structure schematic diagram of the utility model hoisting system after omitting the shell.

[0031] Figure 4 It is the partial enlarged structure schematic diagram of Figure 3 .

[0032] Figure 5 It is the structure schematic diagram of the utility model hoisting system after omitting the shell, rope pressing device and rope dividing device one side.

[0033] Figure 6 It is the partial enlarged structure schematic diagram of Figure 5 .

[0034] Figure 7 It is the structure schematic diagram of the utility model hoisting system after omitting the shell, rope pressing device and rope dividing device the other side.

[0035] Figure 8 It is the structure schematic diagram of the utility model transmission mechanism and chain break detection device.

[0036] EXPLANATION OF DRAWINGS IN THE SPECIFICATION:

[0037] 100, shell, 110, bottom plate, 120, fixed platform, 130, mounting beam, 140, guide rail sliding block assembly, 150, roller,

[0038] 1, winding drum mechanism, 11, rope winding drum, 11a, subarea, 111, winding rope groove, 12, driving device, 121, speed reducer motor

[0039] 2, rope pressing device; 2a, rope pressing subunit; 21, pressing wheel; 22, rope pressing seat; 23, rotating arm; 24, baffle; 25, rope outlet slot; 26, rope pressing beam; 27, slack rope limiting device; 271, slack rope limiting detection switch; 272, first detection pressing rod; 28, full rope limiting device; 281, full rope limiting detection switch; 282, second detection pressing rod;

[0040] 3, rope separating device; 31, rope separating pulley;

[0041] 4, reciprocating mechanism; 41, bidirectional reciprocating screw; 42, movable platform; 421, transition table;

[0042] 5, transmission mechanism; 51, first chain wheel; 52, second chain wheel; 53, transmission chain;

[0043] 6, chain breaking detection device; 61, support; 62, first rotating plate; 62a, first tensioning chain wheel; 63, second rotating plate; 63a, second tensioning chain wheel; 64, tension spring; 65, chain breaking detection switch;

[0044] 7, rope capacity detection device; 71, detection seat; 72, limiting screw; 73, detection block; 74, capacity detection switch; 741, minimum steel wire rope reserved capacity position detection switch; 742, intermediate working position detection switch; 743, maximum steel wire rope capacity position detection switch;

[0045] 8, guide pulley;

[0046] 9, backup brake device. DETAILED DESCRIPTION

[0047] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0048] In the utility model, if the direction (up, down, left, right, front and back) is described, it is only for the convenience of describing the technical scheme of the utility model, and is not indicated or implied that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as the limitation of the utility model.

[0049] In the utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and "greater than", "less than", "exceed" and the like are understood as not including the number; "above", "below", "within" and the like are understood as including the number. In the description of the utility model, if "first" and "second" are described, they are only used for distinguishing technical features for the purpose, and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0050] In the utility model, unless otherwise explicitly limited, the words such as "arrangement", "installation", "connection" and the like should be understood in a broad sense, for example, can be directly connected, can also be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected, can also be integrally formed; can be mechanically connected, can also be electrically connected or capable of intercommunication; can be the communication or interaction relationship of two elements inside two elements. The person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0051] Referring to Figure 1 The utility model discloses a hoisting system for the hoisting of window cleaning machine, comprising a shell 100 and the fixed platform 120 that are fixedly connected on the bottom plate 110 of shell 100 through bolt, and the hoisting system further comprises:

[0052] The winding drum mechanism 1 comprises a rope winding drum 11 and a driving device 12 for driving the rotation of the rope winding drum 11, a plurality of sub-areas 11a are distributed along the axial direction of the rope winding drum 11, and the sub-areas 11a are separated by a baffle 24, and a steel wire rope is wound in each sub-area 11a.

[0053] The rope pressing device 2 comprises a plurality of pressing wheels 21, and each pressing wheel 21 corresponds to the steel wire rope drawn out of the sub-area 11a.

[0054] The rope separating device 3 is arranged on one side of the rope pressing device 2 and comprises a plurality of rope separating pulleys 31, and each rope separating pulley 31 corresponds to the steel wire rope drawn out of the sub-area 11a.

[0055] The reciprocating mechanism 4 comprises a bidirectional reciprocating screw 41 arranged in parallel with the axis of the rope winding drum 11, and a movable platform 42 slidably connected to the bidirectional reciprocating screw 41 and connected to the winding drum mechanism 1.

[0056] The transmission mechanism 5 is arranged between the rope winding drum 11 and the bidirectional reciprocating lead screw 41, and is used to transmit the torque of the rope winding drum 11 to the bidirectional reciprocating lead screw 41, so as to drive the winding drum mechanism 1 to move along the axial direction through the movable platform 42, and then align the rope winding groove 111 of the sub-area 11a with the rope outlet position of the rope distribution pulley 31 (or the position of the compression wheel 21).

[0057] By separating the rope winding drum 11 into multiple sub-areas 11a in the axial direction and winding a steel wire rope in each sub-area 11a, the mode of multiple ropes parallel and independent entering and exiting the rope is realized, which not only effectively avoids the problems of disordered rope and slot jumping in the traditional multiple rope winding drum, but also ensures that each steel wire rope is uniformly stressed and stably loaded, thereby prolonging the service life of the steel wire rope and improving the safety and reliability of the whole hoisting system.

[0058] By setting the synchronous reciprocating movement of the bidirectional reciprocating lead screw 41 and the movable platform 42, the rope winding drum 11 can move synchronously with the movable platform 42 in the axial direction during the winding and unwinding of the rope, so as to realize that the position of the rope winding groove 111 of the rope winding drum 11 always corresponds to the rope outlet position of the rope distribution pulley 31, effectively avoid the problems of disordered rope arrangement, overlapping rope and slot jumping, ensure the orderly arrangement of the steel wire rope, and improve the stability and safety of the equipment operation.

[0059] Specifically, referring to Figure 6 、 Figure 7 , the movable platform 42 is slidingly connected above the fixed platform 120 (by setting the guide rail sliding block assembly 140 between the fixed platform 120 and the movable platform 42, and the roller 150 installed on the fixed platform 120); the bidirectional reciprocating lead screw 41 is installed on the fixed platform, and the screw rod driving block (screw nut) thereof is connected with the lower end of the transition table 421 installed above the movable platform 42; the winding drum mechanism 1 is installed on the movable platform 42; the driving device 12 is specifically a reduction motor 121, and is fixedly installed above the movable platform 42; one side of the rope winding drum 11 is connected with the reduction motor 121, and the other side is connected with the movable platform 42; the outer end of the reduction motor 121 is provided with a current collector ring, which is used to arrange a conductive cable and transmit signals.

[0060] Referring to Figure 3 、 Figure 4As shown, in one embodiment, the rope pressing device 2 comprises a plurality of rope pressing sub-units 2a, each of which comprises a rope pressing seat 22, a rotating arm 23 rotatably connected to the rope pressing seat 22 and used for mounting the pressing wheel 21, and a baffle 24 located at the bottom of the pressing wheel 21, the baffle 24 and the bottom of the pressing wheel 21 forming a rope groove 25, and the rear side of each pressing wheel 21 is correspondingly provided with the rope separating pulley 31, and the rear side of the rope separating pulley 31 is provided with the guide pulley 8, which is used for leading the converged steel wire rope out to the lifting equipment (the lifting point of the window cleaning machine).

[0061] The rope pressing device 2 utilizes the cooperation of the pressing wheel 21 and the baffle 24 to form the rope groove 25, and orderly leads out a plurality of steel wire ropes through the rope separating pulley 31 in the rope separating device 3. At the same time, the guide pulley 8 accurately guides the converged steel wire rope, so that the tension transmission during the operation of the window cleaning machine is more stable, and the system can still maintain the neat arrangement of the steel wire rope under high load conditions, greatly improving the controllability and safety during the operation of the equipment.

[0062] Specifically, the rope pressing device 2, the rope separating device 3, and the guide pulley 8 are all mounted on the mounting beam 130 at the upper part of the shell 100.

[0063] Referring to Figure 4 As shown, in one embodiment, the sub-area 11a is provided with an even number of rope pressing beams 26 parallel to the axis of the rope winding drum 11, and the end of each rotating arm 23 is provided with a rope pressing beam 26, and two pressing wheels 21 are respectively mounted on both ends of the rope pressing beam 26 and press the steel wire ropes led out by the adjacent two sub-areas 11a.

[0064] Please continue to refer to Figure 4 As shown, in one embodiment, the rope pressing sub-unit 2a further comprises a loose rope limiting device 27 and a full rope limiting device 28, the loose rope limiting device 27 comprises a loose rope limiting detection switch 271 and a first detection pressing rod 272 mounted on the rotating arm 23, the first detection pressing rod 272 is perpendicular to the axis of the rotating arm 23, and the full rope limiting device 28 comprises a full rope limiting detection switch 281 and a second detection pressing rod 282 mounted on the rotating arm 23, the first detection pressing rod 272 is parallel to the axis of the rotating arm 23, when the rotating arm 23 rotates to a predetermined position towards the rope winding drum 11, the first detection pressing rod 272 can contact the loose rope limiting detection switch 271, and when the rotating arm 23 rotates to a predetermined position away from the rope winding drum 11, the second detection pressing rod 282 can contact the full rope limiting detection switch 281.

[0065] The slack rope limiting device 27 can detect slack or broken wire ropes, preventing tangled wire ropes during winding and unwinding, thus reducing risks. The full rope limiting device 28 can detect the highest rope position of the wire rope, preventing the wire rope from exceeding the height of the baffle 24 on the rope drum 11 and causing it to jump out of the groove.

[0066] Reference Figure 5 , Figure 6 As shown, in one embodiment, the transmission mechanism 5 includes a first sprocket 51 mounted on the axial end of the rope drum 11, a second sprocket 52 mounted on the axial end of the bidirectional reciprocating screw 41, and a transmission chain 53 mounted between the first sprocket 51 and the second sprocket 52.

[0067] Reference Figure 6 , Figure 8 As shown, in one embodiment, a chain breakage detection device 6 is further included. The chain breakage detection device 6 includes a bracket 61, a first rotating plate 62, a second rotating plate 63, a tension spring 64, and a chain breakage detection switch 65. The first rotating plate 62 and the second rotating plate 63 are rotatably connected to the bracket 61, and a first tensioning sprocket 62a and a second tensioning sprocket 63a are respectively installed on them. The first tensioning sprocket 62a and the second tensioning sprocket 63a press against the transmission chain 53 on both sides. The tension spring 64 is installed between the first rotating plate 62 and the second rotating plate 63 to provide a force for pressing the transmission chain 53. The first rotating plate 62 or the second rotating plate 63 can contact the chain breakage detection switch 65 when a chain breakage occurs and the plate rotates to a predetermined position.

[0068] By setting up a chain breakage detection device 6, when a chain breaks, the tension sprocket on the broken side will move closer to the unbroken side due to the force of the tension spring 64, thereby triggering the limit switch and stopping the work, preventing the wire rope from being misaligned during the rope winding process.

[0069] It should be noted that the rotational motion of the rope drum 11 is converted into the rotational motion of the bidirectional reciprocating screw 41 through the transmission mechanism 5, and the bidirectional reciprocating screw 41 itself has the structural feature of being able to move back and forth along the axial direction. When the rope drum 11 rotates, the second sprocket (2) connected to the bidirectional reciprocating screw 41 through the transmission chain 53 rotates synchronously, thereby driving the bidirectional reciprocating screw 41 to rotate. The double-thread design of the thread on the bidirectional reciprocating screw 41 causes the bidirectional reciprocating screw 41 to automatically reverse after rotating to one end, causing the movable platform 42 to move in the opposite direction, and further causing the movable platform 42 connected to it to reciprocate along the axial direction of the screw during the rotation of the screw.

[0070] The rope drum 11 is fixed on the movable platform 42. When the movable platform 42 moves back and forth with the bidirectional reciprocating screw 41, the rope drum 11 moves back and forth along its own axis.

[0071] By precisely designing the lead of the bidirectional reciprocating screw 41 and the distribution position of the winding rope groove 111 of the rope winding drum 11, the position of the steel wire rope of the rope winding drum 11 corresponding to the released winding rope groove 111 can be always one-to-one corresponding to the position of the fixedly installed rope distribution pulley 31 and the pressure roller 21 during the continuous rotation of the rope winding drum 11, so that the uniform arrangement and uniform entry and exit of the steel wire rope on the drum are ensured, and the winding, knotting or jumping of the steel wire rope are prevented. Further, the transmission ratio of the first sprocket 51 and the second sprocket 52 (the diameter of the second sprocket 52 is larger) and the helical groove pitch of the winding rope groove 111 and the pitch of the bidirectional reciprocating screw 41 can be configured to realize the one-to-one alignment of the position of the winding rope groove 111 and the position of the pressure roller 21 or the rope distribution pulley 31.

[0072] Referring to Figure 6 As shown in the figure, in one embodiment, it further comprises a rope capacity detection device 7, the rope capacity detection device 7 comprises a detection seat 71, a limiting screw 72 installed on the detection seat 71, a detection block 73 slidingly connected to the limiting screw 72, and a plurality of capacity detection switches 74 arranged along the length direction of the limiting screw 72, the limiting screw 72 is connected to the axial end of the bidirectional reciprocating screw 41 away from the transmission mechanism 5.

[0073] Specifically, the capacity detection switch 74 comprises a minimum steel wire rope reserved capacity position detection switch 741 (reserving 3 turns of steel wire rope at least), a plurality of intermediate working position detection switches 742 and a maximum steel wire rope capacity position detection switch 743 arranged in sequence along the direction of the bidirectional reciprocating screw 41.

[0074] The limiting screw 72 can adjust the relative position of the capacity detection switch 74 according to the rope capacity of the drum winding and releasing steel wire rope, so that the highest position of different steel wire rope capacities can be detected, and the function of reserving 3 turns of steel wire rope on the drum rope can be played, so that the safety risk can be avoided.

[0075] Referring to Figure 1 As shown in the figure, in one embodiment, it further comprises a backup brake device 9 installed on the rope winding drum 11 away from the driving device 12, the backup brake device 9 is used for braking the action of the rope winding drum 11, and the backup brake device 9 comprises a mechanical type (secondary) brake device. When the speed of the rope winding drum 11 is greater than the required speed in the normal working range due to the failure or failure of the speed reducer motor 121, the backup brake device 9 will act immediately to brake the action of the rope winding drum 11 in time, so as to prevent overspeed descending and cause safety accidents.

[0076] Exemplarily, the rope winding drum 11 is provided with six sub-areas 11a, and six steel wires can be arranged in order, which is suitable for the window cleaning machine equipment with large front end load and three lifting points. During work, the six steel wires are orderly and evenly wound in the six sub-areas 11a of the rope winding drum 11 through the rope distribution pulley 31 of the rope distribution device 3. When the power is turned on and the motor is started, the speed reducer 121 drives the rope winding drum 11 to rotate, and the rope winding drum 11 rotates to wind and unwind the steel wire, at the same time, the chain transmission (transmission mechanism 5) drives the bidirectional reciprocating lead screw 41 to rotate, and the bidirectional reciprocating lead screw 41 drives the movable platform 42 to move reciprocally along the axial direction, so that the rope winding drum 11 moves horizontally and reciprocally with the movable platform 42 during winding and unwinding the rope, and the winding groove 111 on the rope winding drum 11 is always aligned with the unwinding position of the corresponding rope distribution pulley 31, so that the steel wire is arranged and wound on the rope winding drum 11.

[0077] Finally, it should be pointed out that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A hoisting system, characterized in that The application relates to a winding mechanism (1) comprising a rope winding drum (11) and a driving device (12) for driving the rope winding drum (11) to rotate, a plurality of sub-regions (11a) are distributed along the axial direction of the rope winding drum (11), and a steel wire rope is wound in each of the sub-regions (11a). The application further relates to a rope pressing device (2) comprising a plurality of pressing wheels (21), each of the pressing wheels (21) corresponding to pressing the steel wire rope led out of the sub-regions (11a). The application further relates to a rope separating device (3) arranged on one side of the rope pressing device (2) and comprising a plurality of rope separating pulleys (31), each of the rope separating pulleys (31) corresponding to leading the steel wire rope of the sub-regions (11a). The application further relates to a reciprocating mechanism (4) comprising a bidirectional reciprocating screw (41) arranged in parallel with the axis of the rope winding drum (11), and a movable platform (42) slidingly connected to the bidirectional reciprocating screw (41) and connected to the winding mechanism (1). The application further relates to a transmission mechanism (5) arranged between the rope winding drum (11) and the bidirectional reciprocating screw (41) and used for transmitting the torque of the rope winding drum (11) to the bidirectional reciprocating screw (41) so as to drive the winding mechanism (1) to reciprocate along the axial direction through the movable platform (42), and then align the rope winding grooves (111) of the sub-regions (11a) with the rope leading positions of the rope separating pulleys (31) one by one. The rope pressing device (2) comprises a plurality of rope pressing sub-units (2a), each of the rope pressing sub-units (2a) comprising a rope pressing seat (22), a rotating arm (23) rotatingly connected to the rope pressing seat (22) and used for mounting the pressing wheel (21), and a baffle (24) arranged at the bottom of the pressing wheel (21), the baffle (24) and the bottom of the pressing wheel (21) forming a rope leading groove (25), and each of the pressing wheels (21) corresponding to being provided with the rope separating pulley (31) at the rear side, and the rope separating pulley (31) being provided with a guide pulley (8) at the rear side and used for leading the gathered steel wire rope to a lifting device.

2. A hoisting system according to claim 1, characterised in that The sub-regions (11a) are provided with an even number, the rotating arm (23) is provided with a rope pressing beam (26) parallel to the axis of the rope winding drum (11) at the end, and two pressing wheels (21) are respectively arranged at the two ends of the rope pressing beam (26) and press the steel wire ropes led out of the adjacent two sub-regions (11a).

3. A hoisting system according to claim 2, characterised in that ​ 4. A hoisting system according to claim 2, characterised in that The rope pressing subunit (2a) further comprises a loose rope limiting device (27) and a full rope limiting device (28), the loose rope limiting device (27) comprises a loose rope limiting detection switch (271) and a first detection pressing rod (272) installed on the rotating arm (23), the first detection pressing rod (272) is perpendicular to the axis of the rotating arm (23), the full rope limiting device (28) comprises a full rope limiting detection switch (281) and a second detection pressing rod (282) installed on the rotating arm (23), the first detection pressing rod (272) is parallel to the axis of the rotating arm (23), when the rotating arm (23) rotates to a predetermined position towards the rope winding drum (11), the first detection pressing rod (272) can contact the loose rope limiting detection switch (271); when the rotating arm (23) rotates to a predetermined position away from the rope winding drum (11), the second detection pressing rod (282) can contact the full rope limiting detection switch (281).

5. A hoisting system according to claim 1, characterized in that The transmission mechanism (5) comprises a first chain wheel (51) installed on the axial end of the rope winding drum (11), a second chain wheel (52) installed on the axial end of the bidirectional reciprocating lead screw (41), and a transmission chain (53) installed between the first chain wheel (51) and the second chain wheel (52).

6. A hoisting system according to claim 5, characterised in that Further comprising a chain breakage detection device (6), the chain breakage detection device (6) comprises a bracket (61), a first rotating plate (62), a second rotating plate (63), a tension spring (64) and a chain breakage detection switch (65); the first rotating plate (62) and the second rotating plate (63) are respectively rotatably connected to the bracket (61), and respectively correspondingly installed with a first tension chain wheel (62a) and a second tension chain wheel (63a); the first tension chain wheel (62a) and the second tension chain wheel (63a) are respectively pressed on the transmission chain (53) on both sides; The tension spring (64) is installed between the first rotating plate (62) and the second rotating plate (63), providing the force for pressing the transmission chain (53); The first rotating plate (62) or the second rotating plate (63) can contact the chain breakage detection switch (65) when the chain is broken and rotates to a predetermined position.

7. A hoisting system according to claim 1, characterized in that Further comprising a rope capacity detection device (7), the rope capacity detection device (7) comprises a detection seat (71), a limiting lead screw (72) installed on the detection seat (71), a detection block (73) slidingly connected to the limiting lead screw (72), and a plurality of capacity detection switches (74) arranged along the length direction of the limiting lead screw (72), the limiting lead screw (72) is connected to the axial end of the bidirectional reciprocating lead screw (41) away from the transmission mechanism (5).

8. A hoisting system according to claim 7, characterised in that The capacity detection switch (74) comprises a minimum steel wire rope reserved capacity position detection switch (741), a plurality of intermediate working position detection switches (742) and a maximum steel wire rope capacity position detection switch (743) arranged in sequence along the direction of the bidirectional reciprocating lead screw (41).

9. A hoisting system according to claim 1, characterized in that Also included is a backup brake device (9) installed at the end of the rope winding drum (11) away from the driving device (12), the backup brake device (9) is used to brake the rope winding drum (11) action, the backup brake device (9) includes a mechanical brake device.

10. A window cleaning machine, characterized by The hoisting mechanism comprises the hoisting mechanism according to any one of claims 1-9.

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