CN216190611U

CN216190611U - Double-driving-force balance winch

Info

Publication number: CN216190611U
Application number: CN202121965630.4U
Authority: CN
Inventors: 丁宁; 李德程; 郝万鈞; 张爱东
Original assignee: Chinese University of Hong Kong Shenzhen
Current assignee: Chinese University of Hong Kong Shenzhen
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-04-05
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a double-driving-force balance winch, which comprises a fixed part, a movable part and a traction rope, wherein the movable part is assembled on the fixed part in a sliding manner; the fixed part is provided with a pulley module I which is provided with pulleys I-I and I-II; the movable part is provided with a driving module I positioned at a first end, a pulley module II provided with a pulley II, a driving module II positioned at a second end and a pulley module III provided with a pulley III; the haulage rope includes haulage rope I and haulage rope II, and haulage rope I's first end is connected in drive module I, the fixed part is worn out to the second end, and the part between first end and the second end loops through pulley II and pulley I-I, and haulage rope II's first end is connected in drive module II, the fixed part is worn out to the second end, and the part between first end and the second end loops through pulley III and pulley I-II. Above-mentioned two balanced hoist engines of power that drive, when haulage rope I and haulage rope II's atress inequality, adjust the serving speed and make it unanimous through hoist engine self feedback.

Description

Double-driving-force balance winch

Technical Field

The utility model relates to the technical field of double-drive winches, in particular to a double-drive-force balance winch.

Background

The hoist is a light and small hoisting device for hoisting or pulling heavy objects by winding a steel wire rope or a chain on a winding drum, and can hoist the heavy objects vertically, horizontally or obliquely.

When the dual-drive winch pulls an object, the stress of two pulling ropes is not equal because the two independent winding drums are inconsistent in rope rolling step. The existing solution is as follows: the other tail ends of the two traction ropes which are respectively fixed on the two independent winding drums are communicated, and the wire pulleys are arranged at the communicated positions, so that the stress balance problem is solved by utilizing the principle that the forces at the two ends of the wire pulleys are equal. The method is suitable for the intermediate transmission parts such as a few wire pulleys and the like in the middle of the traction rope, if more intermediate transmission parts exist, the friction force needs to be considered under the actual condition, and at the moment, the pulling forces at the two ends of the traction rope passing through more intermediate transmission parts are not necessarily equal, so that the stress balance of the traction rope fixed on two independent drums cannot be accurately ensured.

Therefore, how to provide a double-drive balance winch which solves the above technical problems is a technical problem which needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-driving-force balance winch, when the stress of a traction rope I and the stress of a traction rope II are unequal, the speed of rope winding is adjusted and made to be consistent through the self feedback of the winch.

In order to achieve the purpose, the utility model provides a double-driving force balance winch, which comprises a fixed part, a movable part and a traction rope, wherein the movable part is assembled on the fixed part in a sliding manner;

the fixed part is provided with a pulley module I which is provided with pulleys I-I and I-II;

the movable part is provided with a driving module I and a pulley module II which are positioned at a first end, a driving module II and a pulley module III which are positioned at a second end;

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 of the traction rope I penetrates out of the fixing portion, and the part between the first end and the second end of the traction rope I sequentially passes through the pulley II and the pulley I-I, the first end of the traction rope II is connected to the driving module II, the second end of the traction rope II penetrates out of the fixing portion, and the part between the first end and the second end sequentially passes through the pulley III and the pulley I-II.

Preferably, the device further comprises a link mechanism arranged on the movable part, and the link mechanism is provided with a friction block which can be frictionally locked with the fixed part.

Preferably, the linkage mechanism is bilaterally symmetrical and comprises a connecting rod I, a connecting rod II, a connecting rod III, a connecting rod IV, a connecting rod V, a connecting rod VI and a connecting rod VII, two ends of the connecting rod II are hinged to the connecting rod III and the connecting rod IV respectively, the connecting rod III is hinged to the middle of the connecting rod V, the connecting rod IV is hinged to the middle of the connecting rod VI, two ends of the connecting rod I are hinged to the upper portion of the connecting rod V and the upper portion of the connecting rod VI respectively, a pulley IV for the traction rope I to pass through is arranged at the lower portion of the connecting rod V, a pulley V for the traction rope II to pass through is arranged at the lower portion of the connecting rod VI, the middle of the connecting rod II is fixedly connected to the lower portion of the connecting rod VII, a sliding hole for the connecting rod VII to slide is arranged in the connecting rod I, and the end portion of the connecting rod VII passing through the sliding hole is fixedly connected to the friction block.

Preferably, the link mechanism further comprises a spring, the spring is sleeved on the link 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.

Preferably, the pulley I-I, the pulley I-II, the pulley III, the pulley IV and the pulley V are respectively provided with a pulley cover at the side surface, and the pulley covers are provided with restraining teeth.

Preferably, the axis of the part of the traction rope I between the pulley II and the pulleys I-I is collinear with the axis of the part of the traction rope II between the pulley III and the pulleys I-II, and the two are parallel to the sliding direction of the movable part relative to the fixed part.

Preferably, the fixed part is provided with a linear guide rail, the movable part is provided with a linear guide member in sliding fit 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 in sliding fit with the linear guide member.

Preferably, the fixed part includes a linear guide I provided at an upper portion, a linear guide II-I, a linear guide II-II, a linear guide III-I, and a linear guide III-II, and the movable part includes a linear guide I-I and a linear guide I-II provided at an upper portion for assembling the linear guide I, a linear guide II provided at a lower portion 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.

Preferably, the device further comprises a sensor for detecting the 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.

Preferably, the sensor comprises a distance measuring sensor I and a distance measuring sensor II which are arranged at two sides of the movable part and used for detecting the distance between the movable part and the fixed part.

Compared with the background technology, the double-drive force balance winch provided by the utility model comprises a traction rope, a fixed part and a movable part, wherein the movable part is assembled on the fixed part in a sliding manner, and the traction rope is connected to the movable part and penetrates out of the fixed part; the fixed part sets up pulley module I, pulley module I is equipped with pulley I-I and pulley I-II, the movable part sets up drive module I that is located the first end and pulley module II that is equipped with pulley II, drive module II that is located the second end and pulley module III that is equipped with pulley III, the haulage rope includes haulage rope I and haulage rope II, the first end of haulage rope I is connected in drive module I, the fixed part is worn out to the second end, the part between first end and the second end loops through pulley II and pulley I-I, the first end of haulage rope II is connected in drive module II, the fixed part is worn out to the second end, the part between first end and the second end loops through pulley III and pulley I-II.

The double-driving-force balance winch provides traction force for the traction rope I through the driving module I and provides traction force for the traction rope II through the driving module II; when haulage rope I and haulage rope II's atress inequality, for example, when drive module I serving speed is faster than drive module II serving speed, haulage rope I's power is greater than haulage rope II's power, the movable part moves under the effect of resultant force, make haulage rope I lie in the part between pulley II and pulley I-I shorten, the serving speed that has reduced drive module I, and the part that haulage rope II lies in between pulley III and pulley I-II lengthens, the serving speed that has increased drive module II, it equals once more to drive module I's serving speed and drive module II's serving speed, vice versa, the same reason, through hoist engine self feedback regulation serving speed and make it unanimous.

Drawings

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

Fig. 1 is a schematic structural diagram of a dual-drive balanced winch according to an embodiment of the present invention;

FIG. 2 is a perspective view of the fixing portion of FIG. 1;

FIG. 3 is a top view of the fixing portion of FIG. 1;

FIG. 4 is a front view of the fixing portion of FIG. 1;

FIG. 5 is a schematic structural diagram of the pulley module I in FIG. 4;

FIG. 6 is a schematic view of the movable portion of FIG. 1;

FIG. 7 is an internal view of the cover plate of FIG. 6 with the cover plate removed;

FIG. 8 is a schematic structural diagram of the driving module I/II shown in FIG. 6;

FIG. 9 is a schematic structural view of the pulley module II/III shown in FIG. 6;

FIG. 10 is a schematic structural view of the linkage mechanism of FIG. 7;

fig. 11 is a schematic static state diagram of a dual-drive balanced winch according to an embodiment of the present invention;

fig. 12 is a schematic diagram illustrating a first motion state of the dual-drive balanced winch according to the embodiment of the present invention;

fig. 13 is a schematic diagram illustrating a second motion state of the dual-drive balanced winch according to the embodiment of the present invention;

fig. 14 is a schematic diagram of a third motion state of the dual-drive balanced winch according to the embodiment of the present invention.

Wherein:

1-fixed part, 2-movable part, 3-link mechanism, 10-mounting rack, 11-linear guide rail I, 12-linear guide II-I, 13-linear guide II-II, 14-linear guide III-I, 15-linear guide III-II, 16-guide rail support I-I, 17-guide rail support I-II, 18-pulley module I, 20-mounting box, 21-driving module I, 22-driving module II, 23-linear guide rail II, 24-linear guide rail III, 25-linear guide I-I, 26-linear guide I-II, 27-pulley module II, 28-pulley module III, 35-friction block, 36-spring, 180-pulley support seat I, 181-pulley I-I, 182-pulley I-II, 183-pulley cover I-I, 184-pulley cover I-II, 185-pin shaft I-I, 186-pin shaft I-II, 201-box, 202-cover plate, 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 II-I, 232-guide rail support II-II, 241-guide rail support III-I, 242-guide rail support III-II, 271-pulley support II, 272-pulley II, 273-pin shaft II, 274-pulley cover II, 281-pulley support III, 282-pulley III, 283-pin III, 284-pulley cover III, 291-ranging sensor I, 292-ranging 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 I-I, 1841-constraint tooth I-II, 2741-constraint tooth II, 2841-constraint tooth III, 3411-constraint tooth IV, 3421-binding teeth V.

Detailed Description

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

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 14, in which fig. 1 is a schematic structural diagram of a dual-drive balanced winch according to an embodiment of the present invention, fig. 2 is a perspective view of a fixed portion in fig. 1, fig. 3 is a top view of the fixed portion in fig. 1, fig. 4 is a front view of the fixed portion in fig. 1, fig. 5 is a schematic structural diagram of a pulley module I in fig. 4, fig. 6 is a schematic structural diagram of a movable portion in fig. 1, fig. 7 is a schematic internal diagram of fig. 6 with a cover removed, fig. 8 is a schematic structural diagram of a drive module I/II in fig. 6, fig. 9 is a schematic structural diagram of a pulley module II/III in fig. 6, fig. 10 is a schematic structural diagram of a link mechanism in fig. 7, fig. 11 is a schematic static state diagram of the dual-drive balanced winch according to the embodiment of the present invention, fig. 12 is a schematic first motion state diagram of the dual-drive balanced winch according to the embodiment of the present invention, and fig. 13 is a second motion state diagram of the dual-drive balanced winch according to the embodiment of the present invention, fig. 14 is a schematic diagram of a third motion state of the dual-drive balanced winch according to the embodiment of the present invention.

In a first specific embodiment, the double-drive balance winch provided by the utility model comprises a traction rope, a fixed part 1 and a movable part 2, wherein the movable part 2 is slidably assembled on the fixed part 1, the movable part 2 can perform sliding motion relative to the fixed part 1, and the traction rope is connected to a winding drum in the movable part 2, penetrates through the fixed part 1 and then is connected with an object to be dragged, so that the traction rope is controlled by the movable part 2 to realize lifting or lowering.

Wherein, for the fixing part 1, the fixing part 1 is provided with a pulley module I18, and the pulley module I18 is provided with pulleys I-I181 and pulleys I-II 182.

For the movable part 2, the movable part 2 is provided with a drive module I21 at a first end and a pulley module II27 provided with a pulley II272, a drive module II22 at a second end and a pulley module III28 provided with a pulley III 282.

For the hauling rope, the hauling rope comprises a hauling rope I401 and a hauling rope II402, wherein the first end of the hauling rope I401 is connected with the driving module I21, the second end of the hauling rope I401 penetrates through the fixing part 1, the part between the first end and the second end sequentially passes through the pulley II272 and the pulley I181, the first end of the hauling rope II402 is connected with the driving module II22, the second end of the hauling rope II402 penetrates through the fixing part 1, and the part between the first end and the second end sequentially passes through the pulley III282 and the pulley I-II 182.

It should be noted that, the two hauling ropes of the double-drive winch are not stressed equally due to the fact that the rope winding speeds of the two independent drums are not consistent, wherein the reason that the rope winding speeds of the two independent drums are not consistent is that, and the result that the two hauling ropes are not stressed equally is that. The core idea of the utility model is to use the result of unequal stress of two hauling ropes as feedback information, and adjust the rope winding speed of two independent winding drums through self feedback of the windlass, and make the rope winding speed consistent.

Specifically, when the stresses of the traction rope I401 and the traction rope II402 are unequal, for example, the rope winding speed of the driving module I21 is higher than the rope winding speed of the driving module II22, the force of the traction rope I401 is greater than the force of the traction rope II402, the movable part 2 moves under the action of the resultant force, so that the part of the traction rope I401 between the pulley II272 and the pulley I-I181 is shortened, which is equivalent to reducing the rope winding speed of the driving module I21, while the part of the traction rope II402 between the pulley III282 and the pulley I-II182 is lengthened, which is equivalent to increasing the rope winding speed of the driving module II22, until the rope winding speed of the driving module I21 is equal to the rope winding speed of the driving module II22 again, and vice versa, so that the rope winding speed is adjusted and made to be consistent through the self-feedback of the winding machine.

In this embodiment, the left and right sides of the double-drive balance winch respectively hang out the pulling ropes downwards, and a pair of pulling ropes simultaneously hang objects. The double-driving force balance winch can adopt a symmetrical structure, the fixed part 1 and the movable part 2 are both in a bilateral symmetrical structure, and the movable part 2 is positioned in the middle of the fixed part 1 in an initial state.

For example, referring to fig. 6 and other figures, the first end is a right end in the figure, and the driving module I21, the traction rope I401 and the like are located at the right end in the figure; the second end is the left end of the figure, and the driving module II22, the hauling cable II402 and the like are located at the left end of the figure. Specifically, the fixing part 1 includes an installation frame 10, the installation frame 10 is a frame which is bilaterally symmetrical and is fixed on the base, and the inside of the installation frame 10 penetrates to the left and right; the movable section 2 includes a mounting case 20, and the mounting case 20 slides right and left in the mounting frame 10. The pulley module I18 is fixedly arranged in the middle of the front side in the mounting rack 10, and the pulleys I-I181 and the pulleys I-II182 are arranged symmetrically left and right.

Besides, the installation box 20 is a hexahedral cuboid with an inner cavity formed by combining the box body 201 and the cover plate 202, the box body 201 is mainly composed of four connecting plates, namely an upper connecting plate, a lower connecting plate, a front connecting plate and a rear connecting plate, the driving module I21 is installed at the right end of the inner cavity, the driving module II22 is installed at the left end of the inner cavity, the pulley module II27 is installed at the right end of the outer part of the box body 201, and the pulley module III28 is installed at the left end of the outer part of the box body 201.

In addition, the driving module I21 and the driving module II22 are power elements, output rotary motion and power, and respectively comprise a motor, a brake, a speed reducer and a winding drum, wherein the winding drum is arranged on a rotary 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 II 224.

Besides, the pulley module I18 comprises a pulley support seat I180, 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 for fixing the pulley support seat I180 on a connecting plate at the front part of the mounting frame 10, the rope through hole 1801 is used for passing a traction rope, the pin hole is used for assembling the pulley I-I181 through a pin shaft I-I185, and the pulley I-II182 is assembled through a pin shaft I-II 186.

Besides, the pulley module II27 comprises 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 a pin shaft II273, and the pulley module II27 is fixedly connected to the box body 201 through a bolt; the pulley module III28 comprises 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 a pin shaft III283, and the pulley module III28 is fixedly connected to the box body 201 through a bolt.

Furthermore, the movable part locking device further comprises a link mechanism 3 arranged on the movable part 2, the link mechanism 3 is provided with a friction block 35, the friction block 35 extends out of the movable part 2 and then faces the fixed part 1, the friction block can be in contact with the fixed part 1, and the friction block is in contact with the fixed part 1 to be locked, so that the movable part 2 is equivalent to the fixed part 1 to be locked statically.

It should be noted that the core point of the present embodiment is that the movable portion 2 realizes the relative locking of the fixed portion 1 through the friction block 35, and the driving control manner of the link mechanism 3 and the friction block 35 thereof includes, but is not limited to, the following.

In a specific embodiment, the link mechanism 3 is bilaterally symmetrical and comprises a connecting rod I301, a connecting rod II302, a connecting rod III303, a connecting rod IV304, a connecting rod V305, a connecting rod VI306 and a connecting rod VII307, the axes of two hinge holes at the left end and the right end of the connecting rod I301 and the connecting rod II302 are parallel, a coaxial hole is arranged between the connecting rod I301 and the connecting rod II302, and the axis of the hole is vertical to the axis of the hinge hole; hinge holes are respectively formed in the left end and the right end of the connecting rod III303 and the connecting rod IV304, and the axes of the two hinge holes are parallel; hinge holes are respectively arranged at the left end, the right end and the middle part of the connecting rod V305 and the connecting rod VI306, and the axes of the three hinge holes are parallel.

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

In this embodiment, one end of the traction rope I401 is fixed to the reel I214 of the drive module I21 of the movable section 1, and passes through the pulley IV321 of the link mechanism 3, the pulley II272 of the pulley module II27, and the pulley I-I181 of the pulley module I18 in this order; one end of the traction rope II402 is fixed to the drum II224 of the drive module II22 of the movable section 1, and passes through the pulley V322 of the link mechanism 3, the pulley III282 of the pulley module III28, and the pulley I-II182 of the pulley module I18 in this order. When the connecting rod V305 and/or the connecting rod VI306 are subjected to the resultant force towards the outer side, the connecting rod VII307 slides downwards, the friction block 35 is far away from the fixing part 1 until the resultant force is removed, the connecting rod VII307 slides upwards, and the friction block 35 is contacted again and locked with the fixing part 1.

When the winch pulls an object, the traction rope is not subjected to tension or only subjected to small tension, the friction block 35 is tightly attached to 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 is fixed; when the haulage rope received the pulling force of big enough, friction block 35 and fixed part 1 throw off, and movable part 2 slip function lock is died and is relieved, and movable part 2 can slide relative fixed part 1, makes haulage rope I401 and haulage rope II 402's length change, and the coiling speed of movable part 2 drive module I21 and the coiling speed of drive module II22 equals, and movable part 2 keeps static for fixed part 1.

The link mechanism 3 is provided with a pin shaft IV311 and a pin shaft V312, the pin shaft IV311 is located at the connection position of the connecting rod I301 and the connecting rod V305, the pin shaft V312 is located at the connection position of the connecting rod I301 and the connecting rod VI306, and the link mechanism 3 is assembled in the middle of the inner cavity of the box 201 through the pin shaft IV311 and the pin shaft V312.

Further, the link mechanism 3 further comprises a spring 36, the spring 36 is sleeved on the link VII307, a sliding hole of the link I301 is provided with a step for positioning the lower part of the spring 36, the upper part of the spring 36 is contacted with the friction block 35, and the spring 36 is always in a compressed state. When the link VII307 moves downward, the length of the spring 36 becomes shorter, the spring 36 is further compressed, and when the resultant force is removed, the link VII307 moves upward, the length of the spring 36 becomes longer, and the spring 36 returns to the original compressed state.

In this embodiment, when neither the pulling rope I401 nor the pulling rope II402 is subjected to a force or is subjected to a small force, the movable portion 2 can be locked by the link mechanism 3. The spring 36 provides a pre-tightening force to the friction block 35, and the spring 36 which is always in a compressed state is used to enable the friction block 35 to be always in an outward ejection state. In the initial state, when the force on the traction rope I401 and the traction rope II402 is zero or less, the friction block 35 keeps locking with the fixed part 1 until the contact between the friction block 35 and the fixed part 1 is separated to a certain degree, and the movable part 2 can slide after being unlocked relative to the fixed part 1.

For better technical effect, the outer edges of the pulleys I-I181, I-II182, II272, III282, IV321 and V322 are all provided with grooves for restraining the traction ropes, and the side surfaces of the pulleys are all provided with pulley covers, and the pulley covers are provided with restraining teeth for restraining the traction ropes so as to prevent the traction ropes from being separated from the grooves.

In the embodiment, a pulley I-I181, a pulley I-II182, a pulley II272, a pulley III282, a pulley IV321 and a pulley V322 are sequentially provided with a pulley cover I-I183, a pulley cover I-II184, a pulley cover II274, a pulley cover III284, a pulley cover IV341 and a pulley cover V342, the pulley cover is sequentially provided with a restraining tooth I-I1831, a restraining tooth I-II1841, a restraining tooth II2741, a restraining tooth III2841, a restraining tooth IV3411 and a restraining tooth V3421, and the restraining tooth is wrapped by the circumferential surface of the pulley.

Illustratively, the segment of the pull-cord I401 between the pulley module I18 and the pulley module II27 is co-linear with the axis of the segment of the pull-cord II402 between the pulley module I18 and the pulley module III28, i.e., the axis of the portion between the pulley II272 and the pulley I-I181 is co-linear with the axis of the portion of the pull-cord II402 between the pulley III282 and the pulley I-II 182; the axis is also parallel to the sliding direction of the mobile part 2 relative to the fixed part 1.

In a particular embodiment, the fixed part 1 is provided with a linear guide and the mobile part 2 with a linear guide which is a sliding fit with the linear guide, and/or the fixed part 1 is provided with a linear guide and the mobile part 2 with a linear guide which is a sliding fit with the linear guide, the linear guide being parallel to the aforementioned axis.

It should be noted that, the present embodiment only defines the sliding form of the linear guide and the linear guide matching, and does not define that only the linear guide or the linear guide can be set in the fixing portion 1, and different forms of single setting and combined setting, and different number of setting forms shall belong to the description scope of the present embodiment.

Illustratively, the stationary part 1 includes a linear guide I11 provided at an upper portion, a linear guide II-I12 provided at a lower portion, a linear guide II-II13, a linear guide III-I14, and a linear guide III-II15, and the movable part 2 includes a linear guide I-I25 and a linear guide I-II26 provided at an upper portion for mounting the wiring linear guide I11, a linear guide II23 provided at a lower portion for mounting the wiring linear guide II-I12 and the linear guide II-II13, and a linear guide III24 for mounting the wiring linear guide III-I14 and the linear guide III-II 15.

Specifically, two ends of a linear guide rail I11 are fixedly arranged at the rear side in the mounting frame 10 through a guide rail support I-I16 and a guide rail support I-II17, a guide piece II-I12 and a linear guide piece II-II13 are coaxial, a linear guide piece III-I14 and a linear guide piece III-II15 are coaxial, and the two are fixedly arranged at two ends of the front side in the mounting frame 10.

In this embodiment, the upper side of the friction block 35 is in the shape of a half-wrapped groove, which is matched with the contour of the linear guide I11 for clamping the linear guide I11 of the fixed part 1 upward to realize the locking of the movable part 2 and the fixed part 1.

Besides, two ends of the linear guide rail II23 are fixedly arranged on the external front side connecting plate of the box body 201 through a guide rail support II-I231 and a guide rail support II-II232, two ends of the linear guide rail III24 are fixedly arranged on the external front side connecting plate of the box body 201 through a guide rail support III-I241 and a guide rail support III-II242, and the linear guide piece I-I25 and the linear guide piece I-II26 are coaxial and are fixedly arranged on the external rear side connecting plate of the box body 201.

In this embodiment, the linear guide rails of the fixed part 1 are matched with the linear guides of the movable part 2, the linear guide rails of the movable part 2 are matched with the linear guides of the fixed part 1, and the linear guide rails of the fixed part 1 and the movable part 2 are parallel to each other in pairs and are perpendicular to the axis of the winding drum of the driving module; the linear guide is slidable in the direction of the guide axis under the constraint of the linear guide, and thus the movable section 2 as a whole is slidable in the direction of the linear guide axis with respect to the fixed section 1.

For better technical effect, 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.

It should be noted that, in order to balance the forces of the pulling rope I401 and the pulling rope II402, the movable part 2 moves 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, the movable part 2 needs to be readjusted to leave enough sliding space for the movable part 2, and the sensor is arranged to obtain whether the movable part 2 reaches the limit position, so as to provide more adjustment space for the movable part 2. For example: when the movable part 2 moves towards the second end until the first end limit position of the fixed part 1 is reached, as shown in the position of fig. 13, the reel I214 stops winding the rope; when the movable part 2 moves to the first end and reaches the second end limit position of the fixed part 1, as shown in fig. 14, the winding of the rope is stopped by the winding drum II 224.

Wherein, can adopt range finding sensor, its quantity does not do the restriction with setting up the position, and the mountable also can be installed at fixed part 1 optional position at movable part 2 optional position, only needs to guarantee that range finding sensor can acquire the positional information of movable part 2 relative fixed part 1.

Illustratively, the sensors include a distance measuring sensor I291 and a distance measuring sensor II292 provided on both sides of the movable portion 2 for detecting a distance from the fixed portion 1.

In this embodiment, distance measuring sensors I291 and II292 are fixedly attached to linear guides I-I25 and I-II26, respectively, and distance measuring sensor I291 measures the distance from its mounting point to the left side of the attachment plate behind the stationary part 1, and distance measuring sensor II292 measures the distance from its mounting point to the right side of the attachment plate behind the stationary part 1.

In a specific working process:

when neither the pulling rope I401 nor the pulling rope II402 is applied or the applied pulling force is small, the force of the pulling rope I401 or the pulling rope II402 acting on the pulley IV321 or the pulley V322 of the link mechanism 3 is zero or small, and since the spring 36 located between the link I301 and the friction block 35 in the link mechanism 3 is in a compressed state, the friction block 35 is in close contact with the linear guide I11 by the urging force of the spring 36 and in a static friction state with the linear guide I11, and the movable portion 2 is locked on the fixed portion 1, as shown in fig. 11.

When a large pulling force is applied to the hauling cable I401 and/or the hauling cable II402, the force of the hauling cable I401 or the hauling cable II402 acting on the pulley IV321 or the pulley V322 of the linkage mechanism 3 is large enough to force the spring 36 between the link I301 and the friction block 35 in the linkage mechanism 3 to be further compressed, so that the friction block 35 is disengaged from the linear guide I11, the movable part 2 is unlocked and can slide relative to the fixed part 1 through the linear guide I11, the linear guide II23 and the linear guide III24, as shown in fig. 12.

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 a direction parallel to the linear guide I11 (or the linear guide II23 or the linear guide III24), and for the movable part 2 as a whole, only F applied by the traction rope I401 is applied in a direction parallel to the linear guide I11 (or the linear guide II23 or the linear guide III24)₁And F applied by the pull-cord II402₂(neglecting slight friction between the linear guide and the linear guide); when F is present₁＝F₂When the movable part 2 is in a balanced state, the movable part 2 and the fixed part 1 are kept relatively static; when F is present₁＞F₂When the movable part 2 is in an unbalanced state, the movable part 2 will be relatively fixedPart 1 along F₁Is moved in the direction of (1); when F is present₁＜F₂When the movable part 2 is in an unbalanced state, the movable part 2 will move along the direction F relative to the fixed part 1₂Is moved.

When the winch pulls an object, at least one of the pulling ropes I401 and II402 is necessarily subjected to a large pulling force, so that the movable part 2 can slide relative to the fixed part 1 along a direction parallel to the linear guide rail I11 (or the linear guide rail II23 or the linear guide rail III 24); when the rope winding speed of the driving module I21 is equal to the rope winding speed of the driving module II22, F₁＝F₂The movable part 2 is in a balanced state, and the movable part 2 and the fixed part 1 are kept relatively static; distance D from installation point of distance measuring sensor I291 to side face of connecting plate at rear of mounting frame 10₁Distance D from installation point of distance measuring sensor II292 to side face of connecting plate at rear of mounting frame 10₂Remain unchanged.

When the rope winding speed of the driving module I21 is faster than that of the driving module II22, F₁＞F₂Moving part 2 to F₁The section of the traction rope I401 between the pulleys I-I181 and II272 is shortened, which is equivalent to reducing the rope winding speed of the driving module I21, the section of the traction rope II402 between the pulleys I-II182 and III282 is lengthened, which is equivalent to increasing the rope winding speed of the driving module II22, and meanwhile, the distance D from the mounting point of the distance measuring sensor I291 to the side face of the connecting plate at the rear part of the mounting frame 10₁Reduce the distance D from the mounting point of the distance measuring sensor II292 to the side surface of the connecting plate at the rear part of the mounting frame 10₂Increasing until the rope-winding speed of the driving module I21 is equal to the rope-winding speed of the driving module II22 again (i.e. F)₁＝F₂) As in fig. 13.

When the rope winding speed of the driving module II22 is faster than that of the driving module I21, F₁＜F₂Moving part 2 to F₂The section of the traction rope I401 between the pulley I-I181 and the pulley II272 is lengthened, which is equivalent to increasing the rope winding speed of the driving module I21, the section of the traction rope II402 between the pulley I-II182 and the pulley III282 is shortened, which is equivalent to decreasing the rope winding speed of the driving module II22, and meanwhile, the distance measuring sensor I291 is arranged at the mounting point to the pulley II272Distance D of connecting plate side face behind mounting bracket 10₁Increasing the distance D from the mounting point of the distance measuring sensor II292 to the side surface of the connecting plate at the rear part of the mounting rack 10₂Decrease until the rope-winding speed of the driving module I21 is equal to the rope-winding speed of the driving module II22 again (i.e. F)₁＝F₂) As in fig. 14.

When distance measuring sensor I291 is arranged at distance D from mounting point to side face of connecting plate at rear of mounting frame 10₁Zero or less than a certain set value, the rope winding of the driving module I21 is stopped, and the rope winding of the driving module II22 is continued, i.e. the rope winding speed of the driving module II22 is higher than that of the driving module I21, F₁＜F₂Moving part 2 to F₂The section of the traction rope I401 between the pulleys I-I181 and II272 is lengthened, the section of the traction rope II402 between the pulleys I-II182 and III282 is shortened, and meanwhile, the distance D from the mounting point of the distance measuring sensor I291 to the side face of the connecting plate behind the mounting frame 10 is shortened₁Increasing the distance D from the mounting point of the distance measuring sensor II292 to the side surface of the connecting plate at the rear part of the mounting rack 10₂Decrease until D₁When the rotation speed is larger than zero or a certain set value, 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 to be equal, as shown in fig. 13.

When distance D from the mounting point of the distance measuring sensor II292 to the side surface of the connecting plate at the rear part of the mounting frame 10₂When the speed of the rope is zero or less than a certain set value, the rope winding of the driving module II22 is stopped, and the rope winding of the driving module I21 is continued, namely when the rope winding speed of the driving module I21 is higher than that of the driving module II22, F₁＞F₂Moving part 2 to F₁The section of the traction rope I401 between the pulley I-I181 and the pulley II272 is shortened, the section of the traction rope II402 between the pulley I-II182 and the pulley III282 is lengthened, and meanwhile, the distance D from the mounting point of the distance measuring sensor I291 to the side face of the connecting plate behind the mounting frame 10 is increased₁Reduce the distance D from the mounting point of the distance measuring sensor II292 to the side surface of the connecting plate at the rear part of the mounting frame 10₂Increase until D₂When the rotation speed is larger than zero or a certain set value, the driving module II22 continues to wind the rope, and the rotation speeds of the driving module I21 and the driving module II22 are set to be equal, as shown in fig. 14.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The double-drive balance winch provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The double-driving-force balance winch is characterized by comprising a fixed part (1), a movable part (2) assembled on the fixed part (1) in a sliding mode, and a traction rope connected to the movable part (2) and penetrating out of 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 pulleys I-I (181) and I-II (182);

the movable part (2) is provided with a driving module I (21) positioned at a first end, a pulley module II (27) provided with a pulley II (272), a driving module II (22) positioned at a second end and a pulley module III (28) provided with a pulley III (282);

the haulage rope includes haulage rope I (401) and haulage rope II (402), the first end of haulage rope I (401) connect in drive module I (21), the second end is worn out the part between fixed part (1), first end and the second end loops through pulley II (272) with pulley I-I (181), the first end of haulage rope II (402) connect in drive module II (22), the second end is worn out the part between fixed part (1), first end and the second end loops through pulley III (282) with pulley I-II (182).

2. The double-drive balance winch according to claim 1, further comprising a link mechanism (3) provided on the movable part (2), wherein the link mechanism (3) is provided with a friction block (35) frictionally locked with the fixed part (1).

3. The double-drive balance winch according to claim 2, wherein the linkage 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), both ends of the connecting rod II (302) are respectively hinged with the connecting rod III (303) and the connecting rod IV (304), the connecting rod III (303) is hinged with the middle of the connecting rod V (305), the connecting rod IV (304) is hinged with the middle of the connecting rod VI (306), both ends of the connecting rod I (301) are respectively hinged with the upper part of the connecting rod V (305) and 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, and 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 with 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 part of the connecting rod VII (307) penetrating through the sliding hole is fixedly connected with the friction block (35).

4. The double drive force balance hoist according to claim 3, characterized in that the link mechanism (3) further comprises a spring (36), the spring (36) is fitted over the link VII (307), the sliding hole is provided with a step for positioning a lower portion of the spring (36), an upper portion of the spring (36) contacts the friction block (35), and the spring (36) is always in a compressed state.

5. The dual drive force balance hoist as claimed in claim 3, characterized in that the sides of the sheave I-I (181), the sheave I-II (182), the sheave II (272), the sheave III (282), the sheave IV (321) and the sheave V (322) are each provided with a sheave cover having a restricting tooth.

6. The double drive force balance winch according to any of claims 1 to 5, wherein the axis of the portion of the traction rope I (401) between the sheave II (272) and the sheaves I-I (181) is collinear with the axis of the portion of the traction rope II (402) between the sheave III (282) and the sheaves I-II (182), both of which are parallel to the sliding direction of the movable part (2) with respect to the fixed part (1).

7. Double drive force balance winch according to any of the claims 1 to 5, characterized in that the fixed part (1) is provided with a linear guide and the movable part (2) is provided with a linear guide in sliding engagement with the linear guide and/or that the fixed part (1) is provided with a linear guide and the movable part (2) is provided with a linear guide in sliding engagement with the linear guide.

8. The double drive force balance hoist as claimed in claim 7, characterized in that the fixed part (1) comprises a linear guide I (11) provided at an upper part, a linear guide II-I (12) at a lower part, a linear guide II-II (13), a linear guide III-I (14) and a linear guide III-II (15), the movable part (2) includes a linear guide I-I (25) and a linear guide I-II (26) provided at an upper portion for assembling the linear guide I (11), a linear guide II (23) provided at a lower portion for assembling the linear guide II-I (12) and the linear guide II-II (13), and a linear guide III (24) for assembling the linear guide III-I (14) and the linear guide III-II (15).

9. The double drive balance winch according to any of claims 1 to 5, further comprising a sensor for detecting the sliding position of the movable part (2) relative to the fixed part (1), wherein the sensor is provided at the fixed part (1) and/or the movable part (2).

10. The double-drive balance winch of claim 9, wherein the sensors include a distance measuring sensor I (291) and a distance measuring sensor II (292) provided on both sides of the movable part (2) for detecting a distance from the fixed part (1).