CN219558526U - Safety rope hanging device and wind generating set - Google Patents

Abstract

The disclosure provides a safety rope hanging device and a wind generating set, wherein the safety rope hanging device is suitable for the wind generating set, the safety rope hanging device comprises a rail and a sliding component, the rail is fixed on a tower, and the rail extends along the circumferential direction of the tower; the sliding assembly comprises a sliding block, a hanging point pull rod and a limiting locking piece, wherein the sliding block is movably arranged on the track, the limiting locking piece is connected to the sliding block, the hanging point pull rod is used for being connected with a safety rope, the hanging point pull rod is connected to the limiting locking piece, when the tension of the safety rope to the hanging point pull rod is larger than a preset value, the limiting locking piece is abutted to the track, and the sliding block is locked relative to the track, so that the use reliability of the safety rope hanging device is improved.

Description

Safety rope hanging device and wind generating set

Technical Field

The disclosure belongs to the technical field of wind power generation, and particularly relates to a safety rope hanging device and a wind generating set.

Background

For aloft work, for example, when installing and maintaining the outer ring bolt of the tower of the wind generating set, an operator needs to work outside the tower, and currently, in order to adapt to the aloft work mode, a safety rope hanging device needs to be provided so as to improve the safety of aloft work.

Disclosure of Invention

The main object of the present disclosure is to provide a safety rope hanging device and a wind generating set, so as to improve the safety of high-altitude operation.

Aiming at the purposes, the present disclosure provides the following technical scheme:

in one aspect of the present disclosure, a safety rope hanger is provided, the safety rope hanger is suitable for a wind generating set, the safety rope hanger comprises a rail and a sliding assembly, the rail is used for being fixed on a tower, and the rail extends along the circumferential direction of the tower; the sliding assembly comprises a sliding block, a hanging point pull rod and a limiting locking piece, wherein the sliding block is movably arranged on the track, the limiting locking piece is connected to the sliding block, the hanging point pull rod is used for being connected with a safety rope, the hanging point pull rod is connected to the limiting locking piece, and when the tension of the safety rope to the hanging point pull rod is larger than a preset value, the limiting locking piece abuts against the track, and the sliding block is locked relative to the track.

According to an exemplary embodiment of the disclosure, the safety line hanging device further includes a pre-tightening member, the pre-tightening member can enable the limit locking member to maintain an unlocking posture, and the sliding block can move relative to the track.

Optionally, the limit locking member is connected to the slider through a first pivot shaft, the pre-tightening member is connected between the slider and the limit locking member, when the tension of the safety rope on the hanging point pull rod is not greater than a predetermined value, the pre-tightening member can enable the limit locking member to keep an unlocking posture, and the slider can move relative to the track.

Specifically, the pre-tightening piece is a spring assembly, two ends of the spring assembly are respectively connected to the sliding block and the limiting locking piece, the pre-tightening piece and the hanging point pull rod are respectively arranged on two sides of the first pivot shaft along the circumferential direction of the tower, the spring assembly is in a stretching state, and the limiting locking piece is in an unlocking state; or, the pretension piece is a spring assembly, two ends of the spring assembly are respectively connected to the sliding block and the limiting locking piece, the pretension piece is arranged between the first pivot shaft and the hanging point pull rod along the circumferential direction of the tower, the spring assembly is in a compressed state, and the limiting locking piece is in an unlocking state.

According to another exemplary embodiment of the disclosure, the sliding block is provided with a through hole for the hanging point pull rod to pass through, the limiting locking piece is arranged above the sliding block, the top end of the hanging point pull rod is rotatably connected with the limiting locking piece through a second pivot shaft, the bottom end of the hanging point pull rod is provided with a safety rope hanging hole for the safety rope to pass through, the safety rope hanging hole is positioned below the track, the track comprises a track top wall, the track top wall is arranged above the limiting locking piece, a gap is arranged between the top of the limiting locking piece and the track top wall when the tension of the safety rope on the hanging point pull rod does not exceed a preset value, the limiting locking piece is in an unlocking state, and the sliding block can move relative to the track; when the tension of the safety rope to the hanging point pull rod is larger than a preset value, the top of the limiting locking piece is abutted against the top wall of the track, the limiting locking piece is in a locking state, and the sliding block is locked relative to the track.

Optionally, the top of spacing retaining member is provided with retaining member block portion, the track includes the track roof, the track roof be provided with the track block portion that retaining member block portion matees the safety rope is right when the pulling force of hanging the some pull rods is greater than the predetermined value, retaining member block portion can track block portion block cooperation.

Specifically, the rail engaging portion is plural, and the plural rail engaging portions are arranged along the extending direction of the rail.

Further, the track includes the guide part, the guide part is followed the circumference of pylon extends and with the pylon interval sets up, spacing retaining member includes the bracing support, the slider connect in the bracing support and support in the guide part, the bracing support vertically set up in on the guide part, hang the some pull rod connect in the upper portion of bracing support, the lower part symmetry of bracing support set up in guide part width direction's both sides when the safety rope is greater than the predetermined value to the pulling force of hanging some pull rod, the lower part of bracing support can support tightly in the both sides of guide part, the slider for the track locking.

According to another exemplary embodiment of the present disclosure, the scissors support includes a first locking portion, a second locking portion, and a locking shaft, the first locking portion and the second locking portion are hinged through the locking shaft, the slider is connected to one of the first locking portion and the second locking portion, the limit locking member further includes a pair of clamping blocks, and the pair of clamping blocks are symmetrically disposed at a lower portion of the first locking portion and a lower portion of the second locking portion, so that the clamping blocks can contact with a side wall of the guide portion.

Optionally, two ends of the pre-tightening piece are respectively connected with the first locking part and the second locking part, when the tension of the safety rope to the hanging point pull rod is greater than a preset value, the lower part of the first locking part and the lower part of the second locking part are close to each other so as to be abutted against two sides of the guiding part, and the sliding block is locked relative to the track.

Specifically, the pre-tightening piece is a spring assembly, two ends of the spring assembly are respectively connected to the upper part of the first locking part and the upper part of the second locking part, the spring assembly is in a compressed state, and the limiting locking piece is in an unlocked state; or, the pretension piece is a spring assembly, the spring assembly is arranged below the locking rotating shaft, two ends of the spring assembly are respectively connected to the first locking part and the second locking part, the spring assembly is in a stretching state, and the limiting locking piece is in an unlocking state.

Further, the track further comprises a connecting portion extending in a ring shape along the circumferential direction of the tower, the radial inner edge of the connecting portion is fixed on the side wall of the tower, the guide portion is fixed above the connecting portion, and the pair of clamping blocks are respectively arranged on the radial inner side and the radial outer side of the guide portion.

According to another exemplary embodiment of the present disclosure, the guide portion is disposed in a radial middle portion of the connecting portion, the track further includes a limiting portion, the limiting portion extends upward along an axial direction of the tower from a radial outer edge of the connecting portion, the hanging point pull rod includes a longitudinal rod for connecting the safety rope, the longitudinal rod extends parallel to the axial direction of the tower, the longitudinal rod is disposed on the radial outer side of the limiting portion along the tower, and the limiting locking member is disposed on the radial inner side of the limiting portion along the tower and is supported on the guide portion.

Optionally, the sliding block is supported on the top surface of the guiding part, and the hanging point pull rod further comprises a connecting rod, and the connecting rod extends from the top end of the longitudinal rod to the scissor support and is connected to the scissor support.

Specifically, the connecting rod is in through second pivot rotatable coupling be in the upper portion of first locking portion, the second pivot set up in the locking pivot is followed the radial inboard of pylon, the connecting rod pass through the third pivot connect in the upper portion of second locking portion, the third pivot set up in the locking pivot is followed the radial outside of pylon, the connecting rod is provided with waist type hole, the third pivot movably set up in the waist type downthehole, make the safety rope is right when the pulling force of hanging some pull rods is greater than the predetermined value, the upper portion of first locking portion can be close to the upper portion of second locking portion.

Further, each clamping block comprises a roller unit and a roller support, the roller support is fixed to the lower portion of the scissor support, the roller units are rotatably connected to the roller support, and when the tension of the safety rope to the hanging point pull rod is not greater than a preset value, the roller units can be movably supported on the side wall of the guide portion.

In another aspect of the present disclosure, a wind power generator set is provided, the wind power generator set includes a tower and a safety rope hanger as described above, and the track is fixed on a side wall of the tower.

The safety rope hanging device and the wind generating set provided by the disclosure have the following beneficial effects: the safety rope hanging device comprises a track and a sliding component capable of sliding along the track, wherein the sliding component can be locked on the track according to requirements, so that the use reliability of the safety rope hanging device is improved.

Drawings

The foregoing and/or other objects and advantages of the disclosure will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a safety rope hanging device according to a first exemplary embodiment of the present disclosure applied to a tower.

Fig. 2 is a first view structural diagram of the sliding assembly of fig. 1.

Fig. 3 is a second view structural diagram of the sliding assembly of fig. 2.

Fig. 4 is a partial cross-sectional view of the safety line hanger with the slider of fig. 2 in a slidable condition.

Fig. 5 is a partial cross-sectional view of the safety line hanger with the slider of fig. 2 in a locked state.

Fig. 6 is a partial cross-sectional view of a safety lifting device with a slider in a slidable state according to a second exemplary embodiment of the present disclosure.

Fig. 7 is a partial cross-sectional view of the safety line hanger with the slider of fig. 6 in a locked state.

Fig. 8 is a schematic structural view of a safety rope hanging device according to a third exemplary embodiment of the present disclosure applied to a tower.

Fig. 9 is another view of the safety rope hanging device of fig. 8.

Reference numerals illustrate:

1. a track; 2. A sliding assembly;

3. a tower; 11. A rail engaging portion;

12. a guide part; 13. A connection part;

14. a limit part; 21. A slide block;

22. a limit locking piece; 23. Hanging a point pull rod;

24. a first pivot shaft; 25. A pretension member;

26. a second pivot shaft; 27. A safety rope hanging hole;

28. a locking member engaging portion; 29. A third pivot shaft;

211. supporting rollers; 212. A roller bracket;

213. A first roller; 221. A first locking part;

222. a second locking part; 223. Locking the rotating shaft;

224. a clamping block; 231. A waist-shaped hole;

232. a longitudinal rod; 233. connecting rod

2241. A roller unit; 2242. A unit bracket;

2243. and a second roller.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the embodiments of the present disclosure should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

The present disclosure provides a wind generating set, the wind generating set includes a tower 3, a nacelle disposed at the top of the tower 3, an impeller and a generator connected to the nacelle, such as but not limited to, the impeller is disposed on a windward side of the nacelle, the generator is disposed in the nacelle, wherein the impeller includes a hub and blades, and the hub is fixedly connected with a generator rotor. When external wind energy acts on the blades and pushes the blades to drive the hub to rotate, the impeller drives the generator rotor to rotate, so that power generation is performed.

As an example, the wind generating set provided by the present disclosure is applicable to an offshore wind generating set, but not limited thereto, and may also be applicable to an onshore wind generating set.

Referring to fig. 1, the wind generating set of the present disclosure further includes a safety rope hanging device disposed on the tower 3, the safety rope hanging device includes a rail 1 and a sliding assembly 2, the rail 1 is connected to a side wall of the tower 3, and for convenience of description, this embodiment is described taking an example that the rail 1 is fixed to an outer peripheral wall of the tower 3, and the rail 1 extends along a circumferential direction of the tower 3. Of course, the track 1 may also be used for fixing to the inner circumferential wall of the tower 3.

In this embodiment, the track 1 extends continuously along the outer circumferential wall of the tower 3 to form a ring shape, but not limited thereto, the track 1 may also extend continuously along the outer circumferential wall of the tower 3 to form an arc shape, for example, but not limited to, the length of the track 1 along the circumferential direction of the tower 3 may be 1/4 arc, or 1/3 arc, or 1/2 arc. As examples, it is within the scope of the present disclosure that the track 1 and tower 3 may be joined using a welding process, or may be joined using fasteners. Further, the track 1 may be made of metal, so as to improve the structural strength of the safety rope hanging device.

The sliding assembly 2 comprises a sliding block 21, a hanging point pull rod 23 and a limiting locking piece 22, wherein the sliding block 21 is movably arranged on the track 1, and the limiting locking piece 22 is connected with the sliding block 21. The hanging point pull rod 23 is used for connecting a safety rope, the hanging point pull rod 23 is connected to the limiting locking piece 22, so that the hanging point pull rod 23 is connected to the sliding block 21 through the limiting locking piece 22 and can move along the track 1 along with the sliding block 21, thereby preventing the safety rope from being wound on the tower 3 in the moving process of an operator, or the hanging point pull rod 23 can be locked at a preset position of the track 1 along with the sliding block 21, for example, but not limited to, when the operator falls accidentally, the sliding block 21 can be locked on the track 1, accidental sliding of the sliding block 21 is avoided, and therefore the operation safety of the operator is improved.

As an example, the slider 21 may be supported on the top surface of the rail 1 or on the side surface of the rail 1, or the rail 1 may be provided with a sliding groove, and the slider 21 may be disposed in the sliding groove, as is within the scope of the present disclosure, depending on the actual needs.

When the tension of the safety rope to the hanging point pull rod 23 is greater than a predetermined value, for example, but not limited to, when the operator accidentally falls, the hanging point pull rod 23 is connected with the operator through the safety rope, the hanging point pull rod 23 receives the tension of the operator, the tension is not less than the gravity of the operator, the limit locking member 22 can abut against the track 1 at this time, and the sliding block 21 is locked relative to the track 1.

When an operator works normally, the sliding block 21 can slide along the track 1, so that the safety rope of the operator moves along with the operator, and the safety rope hanging device is prevented from being invalid due to the fact that the safety rope is wound on the tower 3, and therefore the use safety of the safety rope hanging device is improved. When the operator accidentally falls, the hanging point pull rod 23 is pulled downwards by the operator to enable the limiting locking piece 22 to be abutted against the track 1, at the moment, the limiting locking piece 22 is locked on the track 1, namely, the limiting locking piece 22 serves as a braking piece of the sliding block 21 to lock the sliding block 21 on the track 1, so that unsafe factors caused by sliding of the sliding block 21 are avoided, and the use safety of the safety rope hanging device is further improved.

According to the safety rope hanging device, the track 1 extending along the circumferential direction of the safety rope hanging device is arranged on the side wall of the tower 3, when an operator works at a normal altitude, the sliding block 21 can move along the track 1 to adapt to the position adjustment requirement of the operator, the safety rope is prevented from being wound around the tower 3 to cause the safety rope hanging device to fail, when the operator accidentally falls, namely, the tension of the safety rope to the hanging point pull rod 23 is larger than a preset value, the limiting locking piece 22 can be abutted against the track 1 at the moment, the sliding block 21 is locked relative to the track 1, and the use reliability of the safety rope hanging device is improved.

In order to further improve the reliability of the safety rope hanging device, the safety rope hanging device further comprises a pre-tightening piece 25, the pre-tightening piece 25 can enable the limit locking piece 22 to keep an unlocking posture, and the sliding block 21 can move relative to the track 1. In this embodiment, the pre-tightening member 25 prevents the limit locking member 22 from being accidentally locked on the track 1, thereby further improving the reliability of the safety rope hanging device.

Referring to fig. 2 to 7, the limit lock 22 is rotatably coupled to the slider 21 through a first pivot shaft 24, and a pretensioner 25 is coupled between the slider 21 and the limit lock 22, the pretensioner 25 being capable of maintaining the limit lock 22 in an unlocked posture when a tension of the safety rope to the hitch point tie bar 23 is not greater than a predetermined value, the slider 21 being capable of moving relative to the track 1.

With continued reference to fig. 2 and 3, in the present embodiment, the sliding assembly 2 includes a slider 21 having a substantially hexahedral structure, a first pivot shaft 24 is disposed on top of the slider 21, and a limit lock 22 is rotatably disposed above the slider 21 through the first pivot shaft 24. At one end of the limit lock 22, for example and without limitation, a pretensioner 25 is provided at a first end of the limit lock 22 and a hitch point tie bar 23 (see fig. 4) is provided at a second end of the limit lock 22.

As an example, the hanging point pull rod 23 is rotatably connected to the limit locker 22 through the second pivot shaft 26, the slider 21 is provided with through holes penetrating the top and bottom surfaces of the slider 21, the hanging point pull rod 23 extends downward from the limit locker 22 and passes through the through holes to extend below the slider 21, and the safety rope hanging hole 27 is provided at the lower end of the hanging point pull rod 23 such that the safety rope hanging hole 27 is located below the track 1, thereby facilitating the operator to connect the safety rope in the safety rope hanging hole 27.

In this embodiment, the hanging point pull rod 23 is connected with the limiting locking member 22 through the second pivot shaft 26, so that the hanging point pull rod 23 can be kept longitudinally arranged in the swinging process of the limiting locking member 22, interference with other components is avoided, and reliability of the safety rope hanging device is improved.

As an example, with continued reference to fig. 4 and 5, the pretensioner 25 is a spring assembly, both ends of the spring assembly are respectively connected to the slider 21 and the limit lock 22, and the pretensioner 25 and the hanging point pull rod 23 are respectively disposed on both sides of the first pivot shaft 24 along the circumferential direction of the tower 3, the spring assembly is in a stretched state, and the limit lock 22 is in an unlocked state.

The track 1 includes the track roof, and the track roof sets up in the top of spacing retaining member 22, and when the pulling force of safety rope to hanging point pull rod 23 did not surpass the predetermined value, be provided with the clearance between spacing retaining member 22's top and the track roof, spacing retaining member 22 is in the unblock state, and slider 21 can remove for track 1.

Specifically, in a normal case, the limit lock 22 is spaced from the track top wall, at this time, the slider 21 can slide along the track 1, at this time, the pretensioner 25 is in the first pretensioned state, and under the action of the pretensioner 25, the limit lock 22 is far away from the track top wall, so that the limit lock 22 is spaced from the track top wall, i.e., the limit lock 22 is in the unlocked state, as shown in fig. 4.

Further, when the tension of the safety rope to the hanging point pull rod 23 is larger than a preset value, the top of the limiting locking piece 22 abuts against the top wall of the track, the limiting locking piece 22 is in a locking state, and the sliding block 21 is locked relative to the track 1.

Specifically, when the operator accidentally falls, the pull force of the safety rope received by the hanging point pull rod 23 is greater than a predetermined value, at this time, the limit locking member 22 will rotate around the first pivot shaft 24 due to the pull of the hanging point pull rod 23, and further abut against the top wall of the rail, the limit locking member 22 will rub against the top wall of the rail to brake the slider 21, the slider 21 is decelerated and locked on the rail 1, as shown in fig. 5, at this time, the pre-tightening member 25 is further stretched, i.e., the pre-tightening member 25 is in the second pre-tightening state.

In this embodiment, the limit locking member 22 is configured such that when the slider 21 can slide along the track 1, the downward tension of the hanging point pull rod 23 on the limit locking member 22 is not greater than a predetermined value, and at this time, the limit locking member 22 is kept spaced from the track 1 under the action of the pre-tightening member 25; when the downward pulling force of the hanging point pull rod 23 on the limit locking member 22 is greater than the preset value, the limit locking member 22 rotates clockwise around the first pivot shaft 24 to abut against the track top wall of the track 1, and the sliding block 21 is locked on the track 1.

It can be appreciated that the present embodiment achieves braking of the slider 21 by the abutment friction of the limit lock 22 against the top wall of the track.

In an alternative embodiment, the pretensioning member 25 is a spring assembly, two ends of the spring assembly are respectively connected to the slider 21 and the limit locking member 22, the pretensioning member 25 is circumferentially arranged between the first pivot shaft 24 and the hanging point pull rod 23 along the tower 3, the spring assembly is in a compressed state, at this time, the upward supporting force of the spring assembly on the limit locking member 22 is greater than the downward pulling force of the hanging point pull rod 23 on the limit locking member 22, that is, the downward pulling force of the hanging point pull rod 23 on the limit locking member 22 is not greater than a predetermined value, the top of the limit locking member 22 is arranged at intervals with the top wall of the track, that is, the limit locking member 22 is in an unlocking state, at this time, the slider 21 will slide freely on the track 1.

When an operator accidentally falls, the downward pulling force of the hanging point pull rod 23 on the limiting locking piece 22 is greater than a preset value, the downward pulling force of the hanging point pull rod 23 on the limiting locking piece 22 overcomes the upward supporting force of the spring assembly on the limiting locking piece 22, at the moment, the limiting locking piece 22 rotates clockwise around the first pivot shaft 24 to abut against the top wall of the track 1, and the sliding block 21 is locked on the track 1. In this embodiment, the limit locking member 22 is pressed on the track 1 by means of interference, so as to realize braking of the slider 21.

For convenience of description, the present embodiment uses the pre-tightening member 25 as a spring assembly for example, but the present invention is not limited thereto, and the pre-tightening member 25 may be an elastic rubber member.

Referring to fig. 6 and 7, unlike the first embodiment, in the second embodiment of the present disclosure, a locking member engaging portion 28 is provided at the top of the limit locking member 22, a track engaging portion 11 matching with the locking member engaging portion 28 is provided at the track top wall, and when the tension of the safety rope on the hanging point pull rod 23 is greater than a predetermined value, the locking member engaging portion 28 can engage with the track engaging portion 11.

In this embodiment, the lock member engaging portion 28 engages with the rail engaging portion 11, thereby engaging the limit lock member 22 with the rail 1. The locking member clamping part 28 and the track clamping part 11 have quicker clamping response speed, and the locking member clamping part and the track clamping part are not easy to slide relatively, so that the use reliability of the safety rope hanging device is further improved.

In the present embodiment, the rail engaging portions 11 are plural, and the plural rail engaging portions 11 are arranged along the extending direction of the rail 1.

As an example, the track engaging portion 11 may be a groove, and the locking member engaging portion 28 may be a protrusion protruding upward from the top of the limit locking member 22.

In both embodiments, the limit lock 22 is a cam lock mechanism that is automatically resettable. In a general working state, the limiting locking piece 22 is tensioned by the pre-tightening piece 25, a gap exists between the limiting locking piece and the track 1, the sliding block 21 is driven by the hanging point pull rod 23 to move forward and backward freely along the track 1, an operator does not need to manually move the sliding block 21, and the limiting locking piece can work according to the self-required moving position; when an operator suddenly falls, the hanging point pull rod 23 is stressed and tensioned, and the limiting locking piece 22 is stressed to rotate around the first pivot shaft 24 to press the track 1 upwards, for example, but not limited to, the top of the limiting locking piece 22 is abutted against the top wall of the track 1, so that braking is realized, and unsafe factors caused by sliding of the sliding block 21 in the track 1 are avoided.

Referring to fig. 8 and 9, a third embodiment of the present disclosure provides a safety rope hanging device, unlike the first embodiment, the track 1 includes a guide portion 12, the limit lock 22 includes a scissor bracket supported on the guide portion 12 and lower portions of the scissor bracket are symmetrically disposed on a pair of sidewalls of the guide portion 12.

Specifically, the guiding portion 12 extends along the circumferential direction of the tower 3 and is disposed at a distance from the tower 3, the limiting locking member 22 includes a scissor bracket, and the slider 21 is connected to the scissor bracket and supported on the guiding portion 12, so that the scissor bracket is disposed longitudinally above the guiding portion 12. The present embodiment is described taking the example that the slider 21 is supported on the top of the guide portion 12, but is not limited thereto.

The hanging point pull rod 23 is connected to the upper part of the scissor support, the lower part of the scissor support is symmetrically arranged on two sides of the width direction of the guide part 12, when the tension of the safety rope to the hanging point pull rod 23 is larger than a preset value, the lower part of the scissor support can be abutted against two sides of the guide part 12, namely, the lower part of the scissor support is clamped on two opposite side surfaces of the guide part 12, so that braking is formed on the sliding block 21, and the sliding block 21 is locked relative to the track 1.

Specifically, the lower part of the scissor support is symmetrically arranged at two sides of the guide part 12 and can slide along with the sliding block 21 in the sliding process of the sliding block 21 along the guide part 12, and the lower part of the scissor support can play a guiding role. As an example, the lower portion of the temple support contacts opposite sides of the guide portion 12, but is not limited thereto.

With continued reference to the drawings, the temple support includes a first locking portion 221, a second locking portion 222, and a locking shaft 223, the first locking portion 221 and the second locking portion 222 being hinged by the locking shaft 223 to form a scissors shape, and the slider 21 being connected to one of the first locking portion 221 and the second locking portion 222.

As an example, both ends of the pretensioner 25 are respectively connected to the first locking part 221 and the second locking part 222 to provide a pretensioning force to the scissor bracket, and under the action of the pretensioning force, the lower part of the scissor bracket is supported on opposite sides of the guide part 12, thereby being capable of guiding the movement of the slider 21 and improving the movement reliability of the safety rope hanging device. In this embodiment, the pretensioner 25 is provided, so that the accidental detachment of the scissor bracket from the guide 12 is avoided, and the movement reliability of the safety rope hanging device is further improved.

With continued reference to fig. 8, the pretensioner 25 is a spring assembly, two ends of the spring assembly are respectively connected to the upper portion of the first locking portion 221 and the upper portion of the second locking portion 222, and the spring assembly is in a compressed state, and at this time, the spring assembly is supported between the upper portion of the first locking portion 221 and the upper portion of the second locking portion 222, and is capable of providing a supporting force for the upper portion of the first locking portion 221 in a direction away from the upper portion of the second locking portion 222, and is capable of providing a supporting force for the upper portion of the second locking portion 222 in a direction away from the upper portion of the first locking portion 221.

Under the action of the pre-tightening member 25, the lower parts of the scissor support brackets are attached to opposite sides of the guide portion 12, and at this time, the limiting locking members 22 are movably supported on opposite sides of the guide portion 12, that is, the limiting locking members 22 are in an unlocked state, and the sliding blocks 21 can move along the guide portion 12.

Under normal circumstances, the spring assembly is in a compressed state, and at this time, the lower portion of the first locking portion 221 and the lower portion of the second locking portion 222 may be respectively supported on two opposite sides of the guiding portion 12, and at this time, the slider 21 may move along the guiding portion 12, so as to avoid the safety rope winding on the tower 3 to cause the failure of the safety rope hanging device, thereby improving the use safety of the safety rope hanging device.

When the tension of the safety rope to the hitch point tie bar 23 is greater than a predetermined value, for example, but not limited to, when the operator accidentally falls, the lower portions of the first locking portion 221 and the second locking portion 222 come close to abut against both sides of the guide portion 12, and the slider 21 is locked with respect to the track 1.

When an operator accidentally falls, the downward pulling force is transmitted to the hanging point pull rod 23 through the safety rope by the free falling body movement of the operator, the hanging point pull rod 23 overcomes the supporting force of the spring assembly to enable the upper part of the first locking part 221 and the upper part of the second locking part 222 to be close to each other, so that the lower part of the first locking part 221 and the lower part of the second locking part 222 are driven to be abutted against opposite sides of the guide part 12, and at the moment, the limiting locking piece 22 is used as a braking piece of the sliding block 21 until the sliding block 21 is static and locked on the guide part 12, thereby avoiding unsafe factors caused by sliding of the sliding block 21 and further improving the use safety of the safety rope hanging device.

In the present embodiment, the pretensioner 25 is disposed above the locking shaft 223, i.e., on the side opposite to the guide portion 12, but the pretensioner 25 may be disposed below the locking shaft 223, i.e., on the side close to the guide portion 12, if necessary.

Specifically, the pretensioner 25 is a spring assembly, the spring assembly is disposed below the locking shaft 223, two ends of the spring assembly are respectively connected to the first locking portion 221 and the second locking portion 222, the spring assembly is in a stretched state, so that the lower portion of the first locking portion 221 and the lower portion of the second locking portion 222 are kept on opposite side walls of the guiding portion 12, and the limiting locking member 22 is in an unlocked state, that is, the limiting locking member 22 can move relative to the guiding portion 12.

For convenience of description, the pre-tightening member 25 is exemplified by a spring assembly, but not limited thereto, the pre-tightening member 25 may be an elastic rubber member.

As an example, the slider 21 is supported on the top surface of the guide portion 12, but not limited thereto, and the connection portion between the slider 21 and the guide portion 12 may be selected according to actual needs.

Further, in order to improve the service life of the safety rope hanging device, the slider 21 includes a supporting roller 211, a roller bracket 212 and a first roller 213, wherein the roller bracket 212 is fixed at a lower portion of the second locking portion 222 and is disposed between the first locking portion 221 and the second locking portion 222, the lower portion of the second locking portion 222 is disposed at a radial inner side of the guiding portion 12 along the tower 3, and the lower portion of the first locking portion 221 is disposed at a radial outer side of the guiding portion 12 along the tower 3. The supporting roller 211 is rotatably connected to the roller bracket 212 through the first roller 213, but not limited thereto.

With continued reference to fig. 8, the support roller 211 is rotatably supported on the top surface of the guide 12 to avoid excessive friction of the guide 12, thereby improving the service life of the guide 12.

For the purpose of description, the present embodiment is described by taking the example that the slider 21 is connected to the second locking portion 222, but not limited thereto, the slider 21 may also be connected to the first locking portion 221.

The strut mount formed by the first locking part 221, the second locking part 222, and the locking shaft 223 is disposed substantially symmetrically on both sides of the guide part 12 in the radial direction of the tower 3, regardless of the slider 21.

With continued reference to fig. 8, the limit lock 22 further includes a pair of clamping blocks 224, where the pair of clamping blocks 224 are symmetrically disposed at the lower portion of the first locking portion 221 and the lower portion of the second locking portion 222, so that the clamping blocks 224 can contact with the side walls of the guide portion 12, and when the tension of the safety rope to the hanging point pull rod 23 is greater than a predetermined value, the limit lock 22 abuts against the pair of side walls of the guide portion 12, and the slider 21 is locked relative to the track 1.

In order to improve the service life of the guide portion 12, each clamping block 224 includes a roller unit 2241 and a unit holder 2242, the unit holder 2242 is fixed to the lower portion of the scissor jack holder, the roller unit 2241 is rotatably connected to the unit holder 2242, and when the tension of the safety rope to the hanging point pull rod 23 is not greater than a predetermined value, the roller unit 2241 can be movably supported on the side wall of the guide portion 12, i.e., the roller unit 2241 can rotatably roll on the opposite side wall of the guide portion 12, so that excessive abrasion of the side wall of the guide portion 12 is avoided, thereby improving the service life of the guide portion 12.

With continued reference to fig. 8, the hitch point tie 23 includes a longitudinal bar 232 and a connecting bar 233, the longitudinal bar 232 being used to connect the safety line, the safety line hitch hole 27 being provided in the longitudinal bar 232. As an example, the longitudinal rod 232 extends parallel to the axial direction of the tower 3, and the safety rope hanging hole 27 is provided at a lower portion of the longitudinal rod 232, but not limited thereto.

The connection rod 233 extends from the top end of the longitudinal rod 232 toward the temple frame and is connected thereto. In this embodiment, the lower portion of the first locking portion 221, the lower portion of the second locking portion 222, and the longitudinal rod 232 are disposed substantially in parallel, and the longitudinal rod 232, the lower portion of the first locking portion 221, and the lower portion of the second locking portion 222 are disposed at intervals in order along the radial direction of the tower 3.

The upper portion of the first locking part 221 and the upper portion of the second locking part 222 are hinged together by a locking rotation shaft 223 such that the upper portion of the first locking part 221 extends inward in the radial direction of the tower 3 from the lower portion of the first locking part 221, and the upper portion of the second locking part 222 extends outward in the radial direction of the tower 3 from the lower portion of the second locking part 222.

As an example, the connection rod 233 is rotatably connected to the upper portion of the first locking part 221 through the second pivot shaft 26, the second pivot shaft 26 is disposed at the radially inner side of the locking shaft 223 along the tower 3, the connection rod 233 is connected to the upper portion of the second locking part 222 through the third pivot shaft 29, the third pivot shaft 29 is disposed at the radially outer side of the locking shaft 223 along the tower 3, the connection rod 233 is provided with the waist-shaped hole 231, and the third pivot shaft 29 is movably disposed in the waist-shaped hole 231 such that the upper portion of the first locking part 221 can approach the upper portion of the second locking part 222 when the tension of the safety rope to the hitch-point tie rod 23 is greater than a predetermined value.

The embodiment is described taking the example that the connection rod 233 is hinged to the upper portion of the first locking portion 221 through the second pivot shaft 26, but not limited thereto, the connection rod 233 may be fixed to the upper portion of the first locking portion 221 through, for example, a welding process.

As an example, the track 1 further includes a connection part 13 extending in a ring shape along the circumferential direction of the tower 3, a radially inner edge of the connection part 13 is fixed to an outer circumferential wall of the tower 3, the guide part 12 is fixed above the connection part 13, and a pair of clamping blocks 224 are symmetrically disposed at a lower portion of the first locking part 221 and a lower portion of the second locking part 222, for example, but not limited to, a pair of clamping blocks 224 are disposed at a radially inner side and a radially outer side of the guide part 12, respectively, such that when a pulling force of the safety rope to the hitch point tie rod 23 is greater than a predetermined value, the pair of clamping blocks 224 can abut on a sidewall of the guide part 12, whereby the slider 21 can be locked on the track 1.

The guide portion 12 is disposed in the radial middle of the connecting portion 13, the track 1 further includes a limiting portion 14, the limiting portion 14 extends upward along the axial direction of the tower 3 from the radial outer edge of the connecting portion 13, the longitudinal rod 232 is disposed on the radial outer side of the limiting portion 14 along the tower 3, and the limiting locking member 22 is disposed on the radial inner side of the limiting portion 14 along the tower 3 and supported on the guide portion 12. In this way, the limiting part 14 is arranged on the radial outer edge of the connecting part 13, and the limiting part 14 extends upwards along the axial direction of the tower 3 and stops at the lower part of the first locking part 221 along the radial outer side of the tower 3, so that the sliding component 2 is prevented from sliding outwards along the radial direction of the tower 3, and the service life of the safety rope hanging device is prolonged.

The safety rope hanging device provided by the disclosure comprises a track 1 and a sliding component 2 capable of sliding along the track 1, under normal conditions, an operator is connected to the sliding component 2 through the safety rope, the operator moves under the traction of the safety rope, the sliding component 2 moves under the traction of the safety rope, the safety rope is prevented from being wound on a tower 3, and therefore the use reliability of the safety rope hanging device is improved. When an operator accidentally falls, the pulling force of the safety rope on the sliding component 2 is greater than a preset value, and the sliding component 2 is locked on the track 1, so that unsafe factors caused by movement of the safety rope are avoided, and the use reliability of the safety rope hanging device is further improved.

It should be noted that, in the above embodiments, the radially inner side is the side close to the tower sidewall, and the radially outer side is the side far from the tower sidewall.

In the description of the present disclosure, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, and communicatively connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Claims (17)

1. A safety rope hanging device, characterized in that is applicable to wind generating set, the safety rope hanging device includes:

a track (1) for being fixed to a tower (3), the track (1) extending in a circumferential direction of the tower (3);

the sliding assembly (2) comprises a sliding block (21), a hanging point pull rod (23) and a limiting locking piece (22), wherein the sliding block (21) is movably arranged on the track (1), the limiting locking piece (22) is connected to the sliding block (21), the hanging point pull rod (23) is used for being connected with a safety rope, the hanging point pull rod (23) is connected to the limiting locking piece (22), and when the tension of the safety rope to the hanging point pull rod (23) is larger than a preset value, the limiting locking piece (22) is abutted to the track (1), and the sliding block (21) is locked relative to the track (1).

2. A safety line hanger as claimed in claim 1, further comprising a pretensioner (25), the pretensioner (25) being capable of maintaining the limit lock (22) in an unlocked position, the slider (21) being movable relative to the track (1).

3. A safety line hanging device as claimed in claim 2, characterized in that the limit lock (22) is connected to the slider (21) by means of a first pivot axis (24), the pretensioning member (25) being connected between the slider (21) and the limit lock (22), the pretensioning member (25) being capable of holding the limit lock (22) in an unlocked position when the tension of the safety line on the hitch point lever (23) is not greater than a predetermined value, the slider (21) being capable of moving relative to the track (1).

4. A safety rope hanging device as claimed in claim 3, characterised in that the pre-tightening element (25) is a spring assembly, two ends of the spring assembly are respectively connected to the sliding block (21) and the limit locking element (22), the pre-tightening element (25) and the hanging point pull rod (23) are respectively arranged at two sides of the first pivot shaft (24) along the circumferential direction of the tower (3), the spring assembly is in a stretched state, and the limit locking element (22) is in an unlocked state; or alternatively, the process may be performed,

the pre-tightening piece (25) is a spring assembly, two ends of the spring assembly are respectively connected to the sliding block (21) and the limiting locking piece (22), the pre-tightening piece (25) is arranged between the first pivot shaft (24) and the hanging point pull rod (23) along the circumferential direction of the tower (3), the spring assembly is in a compressed state, and the limiting locking piece (22) is in an unlocking state.

5. A safety rope hanging device as claimed in claim 3, wherein the slider (21) is provided with a through hole for the hanging point pull rod (23) to pass through, the limit locking member (22) is arranged above the slider (21), the top end of the hanging point pull rod (23) is rotatably connected with the limit locking member (22) through a second pivot shaft (26), the bottom end of the hanging point pull rod (23) is provided with a safety rope hanging hole (27) for the safety rope to pass through, the safety rope hanging hole (27) is positioned below the track (1), the track (1) comprises a track top wall, and the track top wall is arranged above the limit locking member (22),

When the tension of the safety rope to the hanging point pull rod (23) does not exceed a preset value, a gap is arranged between the top of the limiting locking piece (22) and the top wall of the track, the limiting locking piece (22) is in an unlocking state, and the sliding block (21) can move relative to the track (1);

when the tension of the safety rope to the hanging point pull rod (23) is larger than a preset value, the top of the limiting locking piece (22) is abutted against the top wall of the track, the limiting locking piece (22) is in a locking state, and the sliding block (21) is locked relative to the track (1).

6. The safety rope hanging device according to claim 1, wherein a locking member clamping portion (28) is arranged at the top of the limiting locking member (22), the track (1) comprises a track top wall, the track top wall is provided with a track clamping portion (11) matched with the locking member clamping portion (28), and when the tension of the safety rope to the hanging point pull rod (23) is greater than a preset value, the locking member clamping portion (28) can be matched with the track clamping portion (11) in a clamping mode.

7. A safety line hanging device as claimed in claim 6, wherein the number of the rail engaging portions (11) is plural, and the plurality of the rail engaging portions (11) are arranged along the extending direction of the rail (1).

8. Safety rope hanging device according to claim 2, characterized in that the rail (1) comprises a guiding part (12), the guiding part (12) extends along the circumferential direction of the tower (3) and is arranged at intervals with the tower (3), the limiting locking piece (22) comprises a scissor support, the sliding block (21) is connected with the scissor support and is supported on the guiding part (12), the scissor support is longitudinally arranged on the guiding part (12), the hanging point pull rod (23) is connected with the upper part of the scissor support, the lower part of the scissor support is symmetrically arranged at two sides of the width direction of the guiding part (12),

when the tension of the safety rope to the hanging point pull rod (23) is larger than a preset value, the lower part of the scissor support can be abutted against two sides of the guide part (12), and the sliding block (21) is locked relative to the track (1).

9. The safety rope hanging device according to claim 8, wherein the scissors support comprises a first locking portion (221), a second locking portion (222) and a locking rotating shaft (223), the first locking portion (221) and the second locking portion (222) are hinged through the locking rotating shaft (223), the slider (21) is connected to one of the first locking portion (221) and the second locking portion (222), the limit locking member (22) further comprises a pair of clamping blocks (224), and the pair of clamping blocks (224) are symmetrically arranged at the lower portion of the first locking portion (221) and the lower portion of the second locking portion (222) so that the clamping blocks (224) can be in contact with the side wall of the guide portion (12).

10. The safety rope hanging device according to claim 9, wherein two ends of the pre-tightening piece (25) are respectively connected with the first locking part (221) and the second locking part (222), when the tension of the safety rope to the hanging point pull rod (23) is greater than a preset value, the lower parts of the first locking part (221) and the second locking part (222) are close to each other so as to be abutted against two sides of the guiding part (12), and the sliding block (21) is locked relative to the track (1).

11. The safety rope hanging device according to claim 10, wherein the pre-tightening member (25) is a spring assembly, two ends of the spring assembly are respectively connected to the upper part of the first locking part (221) and the upper part of the second locking part (222), the spring assembly is in a compressed state, and the limiting locking member (22) is in an unlocked state; or alternatively, the process may be performed,

the pre-tightening piece (25) is a spring assembly, the spring assembly is arranged below the locking rotating shaft (223), two ends of the spring assembly are respectively connected to the first locking part (221) and the second locking part (222), the spring assembly is in a stretching state, and the limiting locking piece (22) is in an unlocking state.

12. A safety rope hanging device as claimed in claim 9, characterised in that the track (1) further comprises a connecting portion (13), the connecting portion (13) extends in a ring shape along the circumference of the tower (3), the radially inner edge of the connecting portion (13) is fixed to the side wall of the tower (3), the guiding portion (12) is fixed above the connecting portion (13), and a pair of clamping blocks (224) are respectively provided on the radially inner side and the radially outer side of the guiding portion (12).

13. A safety rope hanging device as claimed in claim 12, characterised in that the guiding part (12) is arranged in the radial middle of the connecting part (13), the track (1) further comprises a limiting part (14), the limiting part (14) extends upwards along the axial direction of the tower (3) from the radial outer edge of the connecting part (13), the hanging point pull rod (23) comprises a longitudinal rod (232) for connecting a safety rope, the longitudinal rod (232) extends parallel to the axial direction of the tower (3), the longitudinal rod (232) is arranged on the radial outer side of the limiting part (14) along the radial outer side of the tower (3), and the limiting locking part (22) is arranged on the radial inner side of the limiting part (14) along the tower (3) and is supported on the guiding part (12).

14. The safety line hanging device according to claim 13, wherein the slider (21) is supported on a top surface of the guide portion (12), and the hanging point pull rod (23) further includes a connection rod (233), and the connection rod (233) extends from a top end of the longitudinal rod (232) toward the temple frame and is connected to the temple frame.

15. A safety rope hanging device as claimed in claim 14, characterised in that the connecting rod (233) is rotatably connected to the upper part of the first locking part (221) by means of a second pivot (26), the second pivot (26) is arranged on the inner side of the locking pivot (223) in the radial direction of the tower (3), the connecting rod (233) is connected to the upper part of the second locking part (222) by means of a third pivot (29), the third pivot (29) is arranged on the outer side of the locking pivot (223) in the radial direction of the tower (3), the connecting rod (233) is provided with a waist-shaped hole (231), and the third pivot (29) is movably arranged in the waist-shaped hole (231) so that the upper part of the first locking part (221) can approach the upper part of the second locking part (222) when the tension of the safety rope on the hanging point pull rod (23) is greater than a predetermined value.

16. The safety rope hanging device according to claim 9, wherein each of the clamping blocks (224) comprises a roller unit (2241) and a unit bracket (2242), the unit bracket (2242) is fixed to a lower portion of the scissor bracket, the roller unit (2241) is rotatably connected to the unit bracket (2242), and the roller unit (2241) is movably supported on a side wall of the guide part (12) when a pulling force of the safety rope on the hanging point pull rod (23) is not more than a predetermined value.

17. A wind power plant comprising a tower and a safety line hanger as claimed in any one of claims 1 to 16, the track being secured to a side wall of the tower.