A dual-drive balanced winch

Abstract

The present invention discloses a dual-drive balanced winch, comprising a fixed part, a movable part slidably assembled on the fixed part, and a traction rope connected to the movable part and passing through the fixed part; the fixed part is provided with a pulley module I, and the pulley module I is provided with pulleys I-I and I-II; the movable part is provided with a driving module I located at the first end and a pulley module II provided with pulley II, a driving module II located at the second end and a pulley module III provided with pulley III; the traction rope comprises a traction rope I and a traction rope II, the first end of the traction rope I is connected to the driving module I, the second end passes through the fixed part, and the portion between the first end and the second end passes through the pulley II and the pulley I-I in sequence, the first end of the traction rope II is connected to the driving module II, the second end passes through the fixed part, and the portion between the first end and the second end passes through the pulley III and the pulley I-II in sequence. In the above dual-drive balanced winch, when the forces of the traction rope I and the traction rope II are not equal, the rope winding speed is adjusted and made consistent through the feedback of the winch itself.

Description

Technical Field

[0001] The invention relates to the technical field of dual-drive winches, and in particular to a dual-drive force balancing winch. Background Art

[0002] A winch is a small, light lifting device that uses a drum to wrap a wire rope or chain to lift or pull heavy objects. It can lift heavy objects vertically, horizontally, or at an angle.

[0003] When a dual-drive winch is pulling an object, the two traction ropes are often subjected to unequal forces because the two independent drums are not in sync with each other. The existing solution is to connect the other ends of the two traction ropes fixed to the two independent drums, set a wire pulley at the connected position, and use the principle of equal forces at both ends of the wire pulley to solve the force balance problem. This method is suitable for situations where there are only a few intermediate transmission parts such as wire pulleys in the middle of the traction rope. If there are more intermediate transmission parts, friction needs to be considered in actual situations. At this time, the tension at both ends of the traction rope passing through more intermediate transmission parts is not necessarily equal, so it is impossible to accurately guarantee the force balance of the traction rope fixed on the two independent drums.

[0004] Therefore, how to provide a dual-drive balancing winch that solves the above-mentioned technical problems is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The object of the present invention is to provide a dual-drive balanced winch, which can adjust the rope winding speed and make it consistent through the winch's own feedback when the forces on the traction rope I and the traction rope II are not equal.

[0006] To achieve the above object, the present invention provides a dual-drive force balancing winch, comprising a fixed part, a movable part slidably assembled on the fixed part, and a traction rope connected to the movable part and passing through the fixed part;

[0007] The fixed part is provided with a pulley module I, and the pulley module I is provided with a pulley II and a pulley I-II;

[0008] The movable part is provided with a driving module I located at the first end and a pulley module II provided with a pulley II, and a driving module II located at the second end and a pulley module III provided with a pulley III;

[0009] The traction rope includes a traction rope I and a traction rope II, wherein the first end of the traction rope I is connected to the driving module I, the second end passes through the fixed part, and the portion between the first end and the second end passes through the pulley II and the pulley II in sequence, and the first end of the traction rope II is connected to the driving module II, the second end passes through the fixed part, and the portion between the first end and the second end passes through the pulley III and the pulley I-II in sequence.

[0010] Preferably, it further comprises a connecting rod mechanism arranged on the movable part, and the connecting rod mechanism is provided with a friction block which can be frictionally locked with the fixed part.

[0011] Preferably, the connecting rod mechanism is bilaterally symmetrical, and includes connecting rod I, connecting rod II, connecting rod III, connecting rod IV, connecting rod V, connecting rod VI and connecting rod VII, the two ends of the connecting rod II are respectively hinged to the connecting rod III and the connecting rod IV, the connecting rod III is hinged to the middle part of the connecting rod V, the connecting rod IV is hinged to the middle part of the connecting rod VI, the two ends of the connecting rod I are respectively hinged to the upper part of the connecting rod V and the upper part of the connecting rod VI, the lower part of the connecting rod V is provided with a pulley IV for the traction rope I to pass through, the lower part of the connecting rod VI is provided with a pulley V for the traction rope II to pass through, the middle part of the connecting rod II is fixedly connected to the lower part of the connecting rod VII, the connecting rod I is provided with a sliding hole for the sliding of the connecting rod VII, and the end of the connecting rod VII passing through the sliding hole is fixedly connected to the friction block.

[0012] Preferably, the connecting rod mechanism further comprises a spring, the spring is sleeved on the connecting rod VII, the sliding hole is provided with a step for positioning the lower part of the spring, the upper part of the spring contacts the friction block, and the spring is always in a compressed state.

[0013] Preferably, the sides of the pulley II, the pulley I-II, the pulley II, the pulley III, the pulley IV and the pulley V are all provided with pulley covers, and the pulley covers have restraining teeth.

[0014] Preferably, the axis of the traction rope I between the pulley II and the pulley II is colinear with the axis of the traction rope II between the pulley III and the pulley I-II, and both are parallel to the sliding direction of the movable part relative to the fixed part.

[0015] Preferably, the fixed part is provided with a linear guide rail, and the movable part is provided with a linear guide member slidingly matched with the linear guide rail, and / or the fixed part is provided with a linear guide member, and the movable part is provided with a linear guide rail sliding matched with the linear guide member.

[0016] Preferably, the fixed part includes a linear guide I arranged at the top, a linear guide II-I, a linear guide II-II, a linear guide III-I and a linear guide III-II arranged at the bottom, and the movable part includes a linear guide II and a linear guide I-II arranged at the top for assembling the linear guide I, a linear guide II at the bottom for assembling the linear guide II-I and the linear guide II-II, and a linear guide III for assembling the linear guide III-I and the linear guide III-II.

[0017] Preferably, it further comprises a sensor for detecting a sliding position of the movable part relative to the fixed part, and the sensor is arranged on the fixed part and / or the movable part.

[0018] Preferably, the sensor comprises a distance sensor I and a distance sensor II which are arranged on both sides of the movable part and are used to detect the distance between the movable part and the fixed part.

[0019] Compared with the above-mentioned background technology, the dual-drive balancing winch provided by the present invention includes a traction rope, a fixed part and a movable part, the movable part is slidably assembled on the fixed part, the traction rope is connected to the movable part and passes through the fixed part; the fixed part is provided with a pulley module I, the pulley module I is provided with a pulley II and a pulley I-II, the movable part is provided with a driving module I located at the first end and a pulley module II provided with a pulley II, a driving module II located at the second end and a pulley module III provided with a pulley III, the traction rope includes a traction rope I and a traction rope II, the first end of the traction rope I is connected to the driving module I, the second end passes through the fixed part, and the part between the first end and the second end passes through the pulley II and the pulley II in sequence, the first end of the traction rope II is connected to the driving module II, the second end passes through the fixed part, and the part between the first end and the second end passes through the pulley III and the pulley I-II in sequence.

[0020] The dual-drive balanced winch provides traction to the traction rope I through the drive module I, and provides traction to the traction rope II through the drive module II; when the forces on the traction rope I and the traction rope II are not equal, for example, when the winding speed of the drive module I is faster than that of the drive module II, the force of the traction rope I is greater than the force of the traction rope II, and the movable part moves under the action of the resultant force, so that the portion of the traction rope I between the pulley II and the pulley II becomes shorter, which is equivalent to reducing the winding speed of the drive module I, and the portion of the traction rope II between the pulley III and the pulley I-II becomes longer, which is equivalent to increasing the winding speed of the drive module II, until the winding speed of the drive module I is equal to the winding speed of the drive module II again, and vice versa, the winding speed is adjusted and made consistent through the feedback of the winch itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a dual-drive force balancing winch provided by an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A three-dimensional view of the middle fixed part;

[0024] Figure 3 for Figure 1 A top view of the middle fixing portion;

[0025] Figure 4 for Figure 1 A front view of the middle fixing portion;

[0026] Figure 5 for Figure 4 A schematic diagram of the structure of the middle pulley module I;

[0027] Figure 6 for Figure 1 The structural diagram of the middle active part;

[0028] Figure 7 for Figure 6 Schematic diagram of the interior with the cover removed;

[0029] Figure 8 for Figure 6 Schematic diagram of the structure of the middle drive module I / II;

[0030] Fig. 9 for Figure 6 Schematic diagram of the structure of the middle pulley module II / III;

[0031] Fig.10 for Figure 7 Structural diagram of the middle connecting rod mechanism;

[0032] Fig.11 A schematic diagram of a static state of a dual-drive force balancing winch provided by an embodiment of the present invention;

[0033] Fig.12 A schematic diagram of a first motion state of a dual-drive force balancing winch provided by an embodiment of the present invention;

[0034] Fig.13 A schematic diagram of a second motion state of a dual-drive force balancing winch provided by an embodiment of the present invention;

[0035] Fig.14 A schematic diagram of a third motion state of the dual-drive balancing winch provided in an embodiment of the present invention.

[0036] in:

[0037] 1-fixed part, 2-movable part, 3-linkage mechanism, 10-mounting frame, 11-linear guide I, 12-linear guide II-I, 13-linear guide II-II, 14-linear guide III-I, 15-linear guide III-II, 16-guide support II, 17-guide support I-II, 18-pulley module I, 20-mounting box, 21-drive module I, 22-drive module II, 23-linear guide II, 24-linear guide III, 25-linear guide II, 26-linear guide I-II, 27-slide Wheel module II, 28-pulley module III, 35-friction block, 36-spring, 180-pulley support seat I, 181-pulley II, 182-pulley I-II, 183-pulley cover II, 184-pulley cover I-II, 185-pin II, 186-pin I-II, 201-box, 202-cover, 211-motor I, 212-brake I, 213-reducer I, 214-reel I, 221-motor II, 222-brake II, 223-reducer II, 224-reel II, 231-guide rail support I I-I, 232-guide rail support II-II, 241-guide rail support III-I, 242-guide rail support III-II, 271-pulley support seat II, 272-pulley II, 273-pin II, 274-pulley cover II, 281-pulley support seat III, 282-pulley III, 283-pin III, 284-pulley cover III, 291-distance sensor I, 292-distance sensor II, 301-connecting rod I, 302-connecting rod II, 303-connecting rod III, 304-connecting rod IV, 305-connecting rod V , 306-connecting rod VI, 307-connecting rod VII, 311-pin IV, 312-pin V, 321-pulley IV, 322-pulley V, 331-pin VI, 332-pin VII, 341-pulley cover IV, 342-pulley cover V, 401-traction rope I, 402-traction rope II, 1801-rope through hole, 1802-connecting hole, 1831-constraint tooth II, 1841-constraint tooth I-II, 2741-constraint tooth II, 2841-constraint tooth III, 3411-constraint tooth IV, 3421-constraint tooth V. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] Please refer to Figures 1 to 14 ,in, Figure 1 A schematic diagram of the structure of a dual-drive balance winch provided by an embodiment of the present invention, Figure 2 for Figure 1 A three-dimensional diagram of the central fixed part. Figure 3 for Figure 1 Top view of the middle fixed part, Figure 4 for Figure 1 Front view of the middle fixed part, Figure 5 for Figure 4 The structural diagram of the middle pulley module I, Figure 6 for Figure 1 The structural diagram of the middle active part, Figure 7 for Figure 6 Internal diagram with the cover removed. Figure 8 for Figure 6 Schematic diagram of the structure of the middle drive module I / II, Fig. 9 for Figure 6 Schematic diagram of the structure of the middle pulley module II / III, Fig.10 for Figure 7 Schematic diagram of the structure of the middle connecting rod mechanism. Fig.11 A schematic diagram of a static state of a dual-drive force balancing winch provided by an embodiment of the present invention, Fig.12 A schematic diagram of a first motion state of a dual-drive balancing winch provided by an embodiment of the present invention, Fig.13 A schematic diagram of a second motion state of a dual-drive force balancing winch provided in an embodiment of the present invention, Fig.14 A schematic diagram of a third motion state of the dual-drive balancing winch provided in an embodiment of the present invention.

[0041] In the first specific embodiment, the dual-drive balancing winch provided by the present invention includes a traction rope, a fixed part 1 and a movable part 2. The movable part 2 is slidably assembled on the fixed part 1, and the movable part 2 can slide relative to the fixed part 1. The traction rope is connected to the drum in the movable part 2 and passes through the fixed part 1 and then connected to the object to be towed, so that it is controlled by the movable part 2 to be lifted or lowered.

[0042] Among them, for the fixing part 1, the fixing part 1 is provided with a pulley module I18, and the pulley module I18 is provided with a pulley I-I181 and a pulley I-II182.

[0043] For the movable part 2 , the movable part 2 is provided with a driving module I21 located at the first end and a pulley module II27 provided with a pulley II272 , and a driving module II22 located at the second end and a pulley module III28 provided with a pulley III282 .

[0044] As for the traction rope, the traction rope includes a traction rope I401 and a traction rope II402. The first end of the traction rope I401 is connected to the driving module I21, the second end passes through the fixed part 1, and the part between the first end and the second end passes through the pulley II272 and the pulley I-I181 in sequence. The first end of the traction rope II402 is connected to the driving module II22, the second end passes through the fixed part 1, and the part between the first end and the second end passes through the pulley III282 and the pulley I-II182 in sequence.

[0045] It should be noted that the unequal forces on the two traction ropes of the dual-drive winch are caused by the inconsistent winding speeds of the two independent drums, where "inconsistent winding speeds of the two independent drums" is the cause and "unequal forces on the two traction ropes" is the result. The core idea of ​​the present invention is to use the result of "unequal forces on the two traction ropes" as feedback information, and adjust the winding speeds of the two independent drums through the winch's own feedback to make them consistent.

[0046] Specifically, when the forces on the traction rope I401 and the traction rope II402 are not equal, for example, when the winding speed of the driving module I21 is faster than that of the driving module II22, the force of the traction rope I401 is greater than that of the traction rope II402, and the movable part 2 moves under the action of the combined force, so that the portion of the traction rope I401 between the pulley II272 and the pulley I-I181 becomes shorter, which is equivalent to reducing the winding speed of the driving module I21, and the portion of the traction rope II402 between the pulley III282 and the pulley I-II182 becomes longer, which is equivalent to increasing the winding speed of the driving module II22, until the winding speed of the driving module I21 is equal to the winding speed of the driving module II22 again, and vice versa, thereby adjusting the winding speed through the winch's own feedback and making it consistent.

[0047] In this embodiment, the left and right sides of the dual-drive balance winch respectively hang down traction ropes, and a pair of traction ropes simultaneously hang the object. The dual-drive balance winch can adopt a symmetrical structure, in which case the fixed part 1 and the movable part 2 are both left-right symmetrical structures, and in the initial state, the movable part 2 is located in the middle of the fixed part 1.

[0048] Exemplary, reference Figure 6In the accompanying drawings, the first end is the right end of the figure, and the drive module I21, traction rope I401, etc. are located at the right end of the figure; the second end is the left end of the figure, and the drive module II22, traction rope II402, etc. are located at the left end of the figure. Specifically, the fixed part 1 includes a mounting frame 10, which is a left-right symmetrical frame fixed on a base, and the inside of the mounting frame 10 is through to the left and right; the movable part 2 includes a mounting box 20, and the mounting box 20 slides left and right in the mounting frame 10. The pulley module I18 is fixedly installed in the middle of the front side of the mounting frame 10, and the pulley I-I181 and the pulley I-II182 are installed symmetrically.

[0049] In addition, the installation box 20 is composed of a box body 201 and a cover plate 202 to form a six-sided rectangular parallelepiped containing an inner cavity. The box body 201 is mainly composed of four upper, lower, front and back connecting plates. The drive module I21 is installed at the right end of the inner cavity, the drive module II22 is installed at the left end of the inner cavity, the pulley module II27 is installed at the right end of the outside of the box body 201, and the pulley module III28 is installed at the left end of the outside of the box body 201.

[0050] In addition, the drive module I21 and the drive module II22 are power parts that output rotational motion and power, and each includes a motor, a brake, a reducer and a reel, and the reel is installed on the rotational motion and power output shaft; specifically, the drive module I21 includes a motor I211, a brake I212, a reducer I213 and a reel I214, and the drive module II22 includes a motor II221, a brake II222, a reducer II223 and a reel II224.

[0051] In addition, the pulley module I18 includes a pulley support seat I180, and the pulley support seat I180 is provided with a rope through hole 1801, a connecting hole 1802 and a pin hole. The connecting hole is used to fix the pulley support seat I180 on the front connecting plate of the mounting frame 10, the rope through hole 1801 is used to pass the traction rope, and the pin hole is used to assemble the pulley I-I181 through the pin shaft I-I185, and the pulley I-II182 is assembled through the pin shaft I-II186.

[0052] In addition, the pulley module II27 includes a pulley support seat II271 and a pulley II272, the pulley support seat II271 is provided with a pin hole, the pulley II272 is installed through the pin shaft II273, and the pulley module II27 is fixedly connected to the box body 201 by bolts; the pulley module III28 includes a pulley support seat III281 and a pulley III282, the pulley support seat III281 is provided with a pin hole, the pulley III282 is installed through the pin shaft III283, and the pulley module III28 is fixedly connected to the box body 201 by bolts.

[0053] Furthermore, it also includes a connecting rod mechanism 3 arranged on the movable part 2, and the connecting rod mechanism 3 is provided with a friction block 35. The friction block 35 extends from the movable part 2 and faces the fixed part 1. Its function is to contact with the fixed part 1 and utilize friction force to make it contact and lock with the fixed part 1, thereby achieving static locking of the movable part 2 equivalent to the fixed part 1.

[0054] It should be noted that the core point of this embodiment is that the movable part 2 achieves relative locking of the fixed part 1 through the friction block 35, and the driving control method of the connecting rod mechanism 3 and its friction block 35 includes but is not limited to the following.

[0055] In a specific embodiment, the connecting rod mechanism 3 is symmetrical on the left and right sides, and includes connecting rod I301, connecting rod II302, connecting rod III303, connecting rod IV304, connecting rod V305, connecting rod VI306 and connecting rod VII307. The axes of the two hinge holes at the left and right ends of connecting rod I301 and connecting rod II302 are parallel. A coaxial hole is provided between connecting rod I301 and connecting rod II302, and the axis of the hole is perpendicular to the axis of the hinge hole; connecting rod III303 and connecting rod IV304 are respectively provided with hinge holes at the left and right ends, and the axes of the two hinge holes are parallel; connecting rod V305 and connecting rod VI306 are respectively provided with hinge holes at the left and right ends and the middle, and the axes of the three hinge holes are parallel.

[0056] Among them, the two ends of the connecting rod II302 are respectively hinged to the connecting rod III303 and the connecting rod IV304, the connecting rod III303 is hinged to the middle part of the connecting rod V305, the connecting rod IV304 is hinged to the middle part of the connecting rod VI306, the two ends of the connecting rod I301 are respectively hinged to the upper part of the connecting rod V305 and the upper part of the connecting rod VI306, the lower part of the connecting rod V305 is equipped with the pulley IV321 for the traction rope I401 to pass through the pin VI331, the lower part of the connecting rod VI306 is equipped with the pulley V322 for the traction rope II402 to pass through the pin VII332, the middle part of the connecting rod II302 is fixedly connected to the lower part of the connecting rod VII307, the connecting rod I301 is provided with a sliding hole for the sliding of the connecting rod VII307, and the end of the connecting rod VII307 passing through the sliding hole is fixedly connected to the friction block 35.

[0057] In this embodiment, one end of the traction rope I401 is fixed on the drum I214 of the driving module I21 of the movable part 1, and passes through the pulley IV321 of the connecting rod mechanism 3, the pulley II272 of the pulley module II27, and the pulley I-I181 of the pulley module I18 in sequence; one end of the traction rope II402 is fixed on the drum II224 of the driving module II22 of the movable part 1, and passes through the pulley V322 of the connecting rod mechanism 3, the pulley III282 of the pulley module III28, and the pulley I-II182 of the pulley module I18 in sequence. When the connecting rod V305 and / or the connecting rod VI306 are subjected to the combined force to the outside, the connecting rod VII307 slides downward, and the friction block 35 moves away from the fixed part 1 until the combined force is cancelled, the connecting rod VII307 slides upward, and the friction block 35 re-contacts and locks with the fixed part 1.

[0058] When the winch is pulling an object, if the traction rope is not subjected to tension or is subjected to only a small tension, the friction block 35 is in close contact with the fixed part 1, the sliding function of the movable part 2 is locked, and the relative position of the movable part 2 and the fixed part 1 remains unchanged; when the traction rope is subjected to a sufficiently large tension, the friction block 35 is disengaged from the fixed part 1, the locking of the sliding function of the movable part 2 is released, and the movable part 2 can slide relative to the fixed part 1, so that the length of the traction rope I401 and the traction rope II402 change, until the winding speed of the driving module I21 of the movable part 2 is equal to the winding speed of the driving module II22, and the movable part 2 remains stationary relative to the fixed part 1.

[0059] Among them, the connecting rod mechanism 3 has a pin IV311 and a pin V312. The pin IV311 is located at the connection between the connecting rod I301 and the connecting rod V305. The pin V312 is located at the connection between the connecting rod I301 and the connecting rod VI306. The connecting rod mechanism 3 is assembled to the middle part of the inner cavity of the box body 201 through the pin IV311 and the pin V312.

[0060] Furthermore, the connecting rod mechanism 3 also includes a spring 36, and the spring 36 is fitted on the connecting rod VII307. The sliding hole of the connecting rod I301 is provided with a step for positioning the lower part of the spring 36. The upper part of the spring 36 contacts the friction block 35, and the spring 36 is always in a compressed state. When the connecting rod VII307 moves downward, the length of the spring 36 becomes shorter, and the spring 36 is further compressed. When the combined force is cancelled, the connecting rod VII307 moves upward, the length of the spring 36 becomes longer, and the spring 36 returns to the initial compressed state.

[0061] In this embodiment, when the traction rope I401 and the traction rope II402 are not subjected to force or are subjected to very little force, the movable part 2 can be locked by the connecting rod mechanism 3. Among them, the spring 36 provides a pre-tightening force to the friction block 35, and the friction block 35 is always in a state of being pushed outward by the spring 36 that is always in a compressed state. In the initial state, when the force on the traction rope I401 and the traction rope II402 is zero or small, the friction block 35 remains locked with the fixed part 1 until the contact between the friction block 35 and the fixed part 1 is separated to a certain extent, and the movable part 2 can slide after being unlocked relative to the fixed part 1.

[0062] In order to achieve better technical effects, the outer edges of pulley I-I181, pulley I-II182, pulley II272, pulley III282, pulley IV321 and pulley V322 are all provided with grooves for constraining the traction rope, and the sides are all provided with pulley covers, which have constraining teeth for constraining the traction rope to prevent the traction rope from escaping from the grooves.

[0063] In this embodiment, pulley I-I181, pulley I-II182, pulley II272, pulley III282, pulley IV321 and pulley V322 are provided with pulley cover I-I183, pulley cover I-II184, pulley cover II274, pulley cover III284, pulley cover IV341 and pulley cover V342 in sequence, and the above pulley covers are provided with constraint teeth I-I1831, constraint teeth I-II1841, constraint teeth II2741, constraint teeth III2841, constraint teeth IV3411 and constraint teeth V3421 in sequence, and the constraint teeth are wrapped around the circumferential surface of the pulley.

[0064] Exemplarily, the segment of the traction rope I401 between the pulley module I18 and the pulley module II27 is collinear with the segment axis of the traction rope II402 between the pulley module I18 and the pulley module III28, that is, the axis of the portion between the pulley II272 and the pulley I-I181 is collinear with the axis of the portion of the traction rope II402 between the pulley III282 and the pulley I-II182; the above-mentioned axis is also parallel to the sliding direction of the movable part 2 relative to the fixed part 1.

[0065] In a specific embodiment, the fixed part 1 is provided with a linear guide rail, the movable part 2 is provided with a linear guide that slides with the linear guide rail, and / or the fixed part 1 is provided with a linear guide rail, the movable part 2 is provided with a linear guide rail that slides with the linear guide rail, and the linear guide rail is parallel to the above-mentioned axis.

[0066] It should be noted that the present embodiment only limits the sliding form of the cooperation between the linear guide and the linear guide, and does not limit the linear guide or the linear guide to be set only in the fixed part 1. Different forms of single setting and combined setting, as well as different numbers of setting forms, should all fall within the description scope of the present embodiment.

[0067] Exemplarily, the fixed part 1 includes a linear guide I11 disposed at the upper part, a linear guide II-I12, a linear guide II-II13, a linear guide III-I14 and a linear guide III-II15 disposed at the lower part, and the movable part 2 includes a linear guide I-I25 and a linear guide I-II26 disposed at the upper part and used to assemble the linear guide I11, a linear guide II23 disposed at the lower part and used to assemble the linear guide II-I12 and the linear guide II-II13, and a linear guide III24 used to assemble the linear guide III-I14 and the linear guide III-II15.

[0068] Specifically, the two ends of the linear guide rail I11 are fixedly mounted on the rear side of the mounting frame 10 through the guide rail support I-I16 and the guide rail support I-II17, the guide member II-I12 and the linear guide member II-II13 are a coaxial group, and the linear guide member III-I14 and the linear guide member III-II15 are a coaxial group, and both are fixedly mounted on the two ends of the front side of the mounting frame 10.

[0069] In this embodiment, the upper side of the friction block 35 is in the shape of a half-enclosed groove, which matches the contour of the linear guide rail I11 and is used to clamp the linear guide rail I11 of the fixed part 1 upward to achieve locking of the movable part 2 and the fixed part 1.

[0070] In addition, both ends of the linear guide rail II23 are fixedly mounted on the external front connecting plate of the box body 201 through guide rail supports II-I231 and guide rail supports II-II232, and both ends of the linear guide rail III24 are fixedly mounted on the external front connecting plate of the box body 201 through guide rail supports III-I241 and guide rail supports III-II242. The linear guide I-I25 and the linear guide I-II26 are a coaxial set, which are fixedly mounted on the external rear connecting plate of the box body 201.

[0071] In this embodiment, the linear guide rail of the fixed part 1 cooperates with the linear guide of the movable part 2, and the linear guide rail of the movable part 2 cooperates with the linear guide of the fixed part 1, and the linear guide rails provided in the fixed part 1 and the movable part 2 are parallel to each other and perpendicular to the reel axis of the driving module; the linear guide rail can slide along the axis direction of the guide rail under the constraint of the linear guide, so the movable part 2 as a whole can slide relative to the fixed part 1 along the axis direction of the linear guide rail.

[0072] In order to achieve better technical effects, a sensor for detecting the sliding position of the movable part 2 relative to the fixed part 1 is also included, and the sensor is arranged on the fixed part 1 and / or the movable part 2.

[0073] It should be noted that in order to balance the forces on the traction rope I401 and the traction rope II402, the movable part 2 will move left or right relative to the fixed part 1. When the movable part 2 moves to the limit position relative to the fixed part 1, it needs to be readjusted to leave enough sliding space for the movable part 2. The sensor is set to obtain whether the movable part 2 has reached the limit position and give the movable part 2 more adjustment space. For example: when the movable part 2 moves to the second end until it moves to the limit position of the first end of the fixed part 1, if Fig.13 The reel 1214 stops winding the rope; the movable part 2 moves toward the first end until it moves to the limit position of the second end of the fixed part 1, as shown in FIG. Fig.14 In the position shown, the drum II 224 stops winding the rope.

[0074] Among them, distance measuring sensors can be used, and there is no limit on their number and setting positions. They can be installed at any position of the movable part 2 or at any position of the fixed part 1. It only needs to ensure that the distance measuring sensors can obtain the position information of the movable part 2 relative to the fixed part 1.

[0075] Exemplarily, the sensor includes a distance sensor I291 and a distance sensor II292 disposed on both sides of the movable part 2 for detecting the distance from the fixed part 1 .

[0076] In this embodiment, the ranging sensor I291 and the ranging sensor II292 are fixedly connected to the linear guide I-I25 and the linear guide I-II26 respectively. The ranging sensor I291 can measure the distance from its installation point to the left side of the rear connecting plate of the fixed part 1, and the ranging sensor II292 can measure the distance from its installation point to the right side of the rear connecting plate of the fixed part 1.

[0077] In a specific working process:

[0078] When no tension is applied to the traction rope I401 and the traction rope II402 or the applied tension is small, the force of the traction rope I401 and the traction rope II402 on the pulley IV321 and the pulley V322 of the connecting rod mechanism 3 is zero or small. Since the spring 36 located between the connecting rod I301 and the friction block 35 in the connecting rod mechanism 3 is in a compressed state, the friction block 35 is pushed by the spring 36 and is tightly attached to the linear guide rail I11 and is in a static friction state with the linear guide rail I11. The movable part 2 is locked on the fixed part 1, as shown in FIG. Fig.11 .

[0079] When a large pulling force is applied to the traction rope I401 and / or the traction rope II402, the force exerted by the traction rope I401 or the traction rope II402 on the pulley IV321 or the pulley V322 of the connecting rod mechanism 3 is large enough to force the spring 36 located between the connecting rod I301 and the friction block 35 in the connecting rod mechanism 3 to be further compressed, so that the friction block 35 is disengaged from the linear guide rail I11, the movable part 2 is unlocked, and can slide relative to the fixed part 1 through the linear guide rails I11, II23 and III24. Fig.12 .

[0080] When a large pulling force is applied to the traction rope I401 and / or the traction rope II402, the movable part 2 can slide relative to the fixed part 1 along the direction parallel to the linear guide I11 (or linear guide II23 or linear guide III24). For the movable part 2 as a whole, in the direction parallel to the linear guide I11 (or linear guide II23 or linear guide III24), it is only affected by F1 applied by the traction rope I401 and F2 applied by the traction rope II402 (ignoring the tiny friction between the linear guide and the linear guide); when F1=F2, the movable part 2 is in a balanced state, and the movable part 2 and the fixed part 1 remain relatively stationary; when F1>F2, the movable part 2 is in an unbalanced state, and the movable part 2 will move relative to the fixed part 1 along the direction of F1; when F1<F2, the movable part 2 is in an unbalanced state, and the movable part 2 will move relative to the fixed part 1 along the direction of F2.

[0081] When the winch is pulling an object, at least one of the traction ropes I401 and II402 must be subjected to a larger tension, so that the movable part 2 can slide relative to the fixed part 1 along a direction parallel to the linear guide I11 (or linear guide II23 or linear guide III24); when the rope winding speed of the driving module I21 is equal to the rope winding speed of the driving module II22, F1=F2, the movable part 2 is in a balanced state, and the movable part 2 and the fixed part 1 remain relatively still; the distance D1 from the installation point of the distance sensor I291 to the side of the rear connecting plate of the mounting frame 10 and the distance D2 from the installation point of the distance sensor II292 to the side of the rear connecting plate of the mounting frame 10 remain unchanged.

[0082] When the rope winding speed of the driving module I21 is faster than that of the driving module II22, F1>F2, the movable part 2 moves in the direction of F1, and the section of the traction rope I401 between the pulley I-I181 and the pulley II272 becomes shorter, which is equivalent to reducing the rope winding speed of the driving module I21, and the section of the traction rope II402 between the pulley I-II182 and the pulley III282 becomes longer, which is equivalent to increasing the rope winding speed of the driving module II22. At the same time, the distance D1 from the installation point of the ranging sensor I291 to the side of the rear connecting plate of the mounting frame 10 is reduced, and the distance D2 from the installation point of the ranging sensor II292 to the side of the rear connecting plate of the mounting frame 10 is increased, until the rope winding speed of the driving module I21 is equal to the rope winding speed of the driving module II22 again (that is, F1=F2), as shown Fig.13 .

[0083] When the rope winding speed of the driving module II22 is faster than that of the driving module I21, F1<F2, the movable part 2 moves in the direction of F2, the section of the traction rope I401 between the pulley I-I181 and the pulley II272 becomes longer, which is equivalent to increasing the rope winding speed of the driving module I21, and the section of the traction rope II402 between the pulley I-II182 and the pulley III282 becomes shorter, which is equivalent to reducing the rope winding speed of the driving module II22. At the same time, the distance D1 from the installation point of the ranging sensor I291 to the side of the rear connecting plate of the mounting frame 10 increases, and the distance D2 from the installation point of the ranging sensor II292 to the side of the rear connecting plate of the mounting frame 10 decreases, until the rope winding speed of the driving module I21 is equal to the rope winding speed of the driving module II22 again (that is, F1=F2), as shown Fig.14 .

[0084] When the distance D1 from the installation point of the ranging sensor I291 to the side of the rear connecting plate of the mounting frame 10 is zero or less than a certain set value, the driving module I21 stops winding the rope, while the driving module II22 continues to wind the rope, that is, the winding speed of the driving module II22 is faster than that of the driving module I21, F1<F2, the movable part 2 moves in the direction of F2, the section of the traction rope I401 between the pulley I-I181 and the pulley II272 becomes longer, and the section of the traction rope II402 between the pulley I-II182 and the pulley III282 becomes shorter. At the same time, the distance D1 from the installation point of the ranging sensor I291 to the side of the rear connecting plate of the mounting frame 10 increases, and the distance D2 from the installation point of the ranging sensor II292 to the side of the rear connecting plate of the mounting frame 10 decreases, until D1 is greater than zero or a certain set value, then the driving module I21 continues to wind the rope, and the rotation speeds of the driving module I21 and the driving module II22 are set equal. Fig.13 .

[0085] When the distance D2 from the installation point of the ranging sensor II292 to the side of the rear connecting plate of the mounting frame 10 is zero or less than a certain set value, the driving module II22 stops winding the rope, while the driving module I21 continues to wind the rope, that is, the winding speed of the driving module I21 is faster than that of the driving module II22, F1>F2, the movable part 2 moves in the direction of F1, the section of the traction rope I401 between the pulley I-I181 and the pulley II272 becomes shorter, and the section of the traction rope II402 between the pulley I-II182 and the pulley III282 becomes longer, and at the same time, the distance D1 from the installation point of the ranging sensor I291 to the side of the rear connecting plate of the mounting frame 10 decreases, and the distance D2 from the installation point of the ranging sensor II292 to the side of the rear connecting plate of the mounting frame 10 increases, until D2 is greater than zero or a certain set value, then the driving module II22 continues to wind the rope, and the rotation speeds of the driving modules I21 and II22 are set equal, such as Fig.14 .

[0086] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0087] The above is a detailed introduction to the dual-drive balancing winch provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A dual-drive balancing winch, characterized in that: It comprises a fixed part (1), a movable part (2) slidably assembled on the fixed part (1), and a traction rope connected to the movable part (2) and passing through the fixed part (1); The fixed part (1) is provided with a pulley module I (18), and the pulley module I (18) is provided with a pulley II (181) and a pulley I-II (182); The movable part (2) is provided with a driving module I (21) located at a first end and a pulley module II (27) provided with a pulley II (272), and a driving module II (22) located at a second end and a pulley module III (28) provided with a pulley III (282); The traction rope comprises a traction rope I (401) and a traction rope II (402), wherein the first end of the traction rope I (401) is connected to the driving module I (21), the second end passes through the fixing portion (1), and the portion between the first end and the second end passes through the pulley II (272) and the pulley II (181) in sequence; the first end of the traction rope II (402) is connected to the driving module II (22), the second end passes through the fixing portion (1), and the portion between the first end and the second end passes through the pulley III (282) and the pulley I-II (182) in sequence; It also includes a connecting rod mechanism (3) arranged on the movable part (2), wherein the connecting rod mechanism (3) is provided with a friction block (35) that can be frictionally locked with the fixed part (1); The connecting rod mechanism (3) is bilaterally symmetrical and comprises a connecting rod I (301), a connecting rod II (302), a connecting rod III (303), a connecting rod IV (304), a connecting rod V (305), a connecting rod VI (306) and a connecting rod VII (307). The two ends of the connecting rod II (302) are respectively hinged to the connecting rod III (303) and the connecting rod IV (304). The connecting rod III (303) is hinged to the middle of the connecting rod V (305). The connecting rod IV (304) is hinged to the middle of the connecting rod VI (306). The two ends of the connecting rod I (301) are respectively hinged to the connecting rod The upper part of the rod V (305) is hinged to the upper part of the connecting rod VI (306), the lower part of the connecting rod V (305) is provided with a pulley IV (321) for the traction rope I (401) to pass through, the lower part of the connecting rod VI (306) is provided with a pulley V (322) for the traction rope II (402) to pass through, the middle part of the connecting rod II (302) is fixedly connected to the lower part of the connecting rod VII (307), the connecting rod I (301) is provided with a sliding hole for the sliding of the connecting rod VII (307), and the end of the connecting rod VII (307) passing through the sliding hole is fixedly connected to the friction block (35).

2. The dual-drive balance winch according to claim 1, characterized in that: The connecting rod mechanism (3) also includes a spring (36), and the spring (36) is mounted on the connecting rod VII (307). The sliding hole is provided with a step for positioning the lower part of the spring (36). The upper part of the spring (36) contacts the friction block (35), and the spring (36) is always in a compressed state.

3. The dual-drive balance winch according to claim 1, characterized in that: The sides of the pulley II (181), the pulley I-II (182), the pulley II (272), the pulley III (282), the pulley IV (321) and the pulley V (322) are all provided with pulley covers, and the pulley covers have restraining teeth.

4. The dual-drive balance winch according to any one of claims 1 to 3, characterized in that: The axis of the traction rope I (401) between the pulley II (272) and the pulley II (181) is colinear with the axis of the traction rope II (402) between the pulley III (282) and the pulley I-II (182), and both are parallel to the sliding direction of the movable part (2) relative to the fixed part (1).

5. The dual-drive balance winch according to any one of claims 1 to 3, characterized in that: The fixed part (1) is provided with a linear guide rail, and the movable part (2) is provided with a linear guide member that slides with the linear guide rail, and / or the fixed part (1) is provided with a linear guide member, and the movable part (2) is provided with a linear guide rail that slides with the linear guide member.

6. The dual-drive balance winch according to claim 5, characterized in that: The fixed part (1) includes a linear guide I (11) arranged at the top, a linear guide II-I (12), a linear guide II-II (13), a linear guide III-I (14) and a linear guide III-II (15) arranged at the bottom, and the movable part (2) includes a linear guide II (25) and a linear guide I-II (26) arranged at the top and used for assembling the linear guide I (11), a linear guide II (23) at the bottom and used for assembling the linear guide II-I (12) and the linear guide II-II (13), and a linear guide III (24) used for assembling the linear guide III-I (14) and the linear guide III-II (15).

7. The dual-drive balance winch according to any one of claims 1 to 3, characterized in that: It also comprises a sensor for detecting the sliding position of the movable part (2) relative to the fixed part (1), wherein the sensor is arranged on the fixed part (1) and / or the movable part (2).

8. The dual-drive balance winch according to claim 7, characterized in that: The sensor comprises a distance sensor I (291) and a distance sensor II (292) which are arranged on both sides of the movable part (2) and are used to detect the distance between the movable part and the fixed part (1).

Images