CN203879370U

CN203879370U - Tension device

Info

Publication number: CN203879370U
Application number: CN201420082000.6U
Authority: CN
Inventors: 王喜军
Original assignee: ZHONGJI LIANHE INDUSTRY TECHNOLOGY (BEIJING)CO Ltd
Current assignee: Ficont Industry Beijing Co Ltd
Priority date: 2014-02-26
Filing date: 2014-02-26
Publication date: 2014-10-15
Anticipated expiration: 2024-02-26

Abstract

The utility model discloses a tension device for a circular steel wire rope of a climb assistor. The tension device comprises a frame, a sliding block, a spring, a pressure plate, an adjusting bolt, a nut, a washer, a casing and a shielding plate. The frame is fixed between two adjacent stepping sticks at the lower side of a ladder stand; the adjusting bolt penetrates through the washer, the casing, the pressure plate and the spring in sequence, and the parts are together put in the sliding block; meanwhile, the adjusting bolt protrudes from the sliding block, and is screwed in a thread hole of a platform at the lower side of the frame; and the protruding part of the bolt is tightened by the nut. The shielding plate is positioned in a front end groove of the sliding block. The sliding block and a main engine of the climb assistor are connected as a whole, and can be vertically moved; and the spring is pressed or released along with the movement of the main engine of the climb assistor so as to achieve the purpose of tensioning the steel wire rope of the climb assistor. After the climb assistor of a tower cylinder ladder stand in a wind power plant is used for a period of time, the circular steel wire rope is gradually loosened until the slip is generated between a driving wheel of the climb assistor and the circular steel wire rope, the normal operation is interrupted. The tension device is adopted to ensure that the steel wire rope of the climb assistor is always in the tension state; and the magnitude of tension force also can be adjusted through the adjusting bolt.

Description

A kind of tensioning apparatus

Technical field

The utility model relates to tower cylinder cat ladder climb-aiding device device field in wind power plant.

Background technology

In the tower cylinder of wind power plant, cat ladder is housed for the use of the upper and lower Maintenance and Repair of staff; For saving muscle power and assurance staff's personal safety, a climb-aiding device is all housed on cat ladder; Yet climb-aiding device in use for some time, circulation wire rope can become lax gradually, makes to start to skid between driving wheel in driven climb assisting host and circulation wire rope, and safe lifting or decline power-assisted cannot be provided; For re-tensioning wire rope, needed in the past with regulate stop screw by driven climb assisting host push up downwards or reinstall main frame and more change steel rope realize; This several method implements very trouble, and still needs to readjust after operation a period of time; Never resolve for a long time this problem, for the staff of wind power plant, safeguard especially very trouble; In order to address this problem; Ad hocly counted a kind of circulation steel wire rope stretching device.

Summary of the invention

The technical problem solving is: with a kind of circulation wire rope that installs assurance climb-aiding device, always in tensioning state, avoid the variety of issue producing because of lax.

Technical scheme: in order to solve the problems of the technologies described above, the utility model provides a kind of climb-aiding device circulation steel wire rope stretching device.

Wherein, described device comprises frame, slide block, spring, pressing plate, adjusting bolt, nut, pad, sleeve pipe, shutter.

Further, described frame is fixed between two riding clubs that cat ladder downside is adjacent; Pad, sleeve pipe, pressing plate, spring penetrate in adjusting bolt successively, then put into together slide block, and adjusting bolt passes slide block and is screwed in the screwed hole of frame downside platform simultaneously, and it is standby tight with nut that bolt passes part; Shutter is arranged in slip front groove.

Further, between driven climb assisting host and slide block, be fixed by screws in together.

Further, the driving wheel in driven climb assisting host and two idle pulleys are arranged on support member, and circulation wirerope-winding, between driving wheel and two idle pulleys, and forms a closed cycle loop between the top wheel assembly of climb-aiding device upper end.

Further, have long slot bore in frame, the spring in slide block and slide block can move along long slot bore easy on and off together.

Further, the spring in slide block, by adjusting bolt, pressing plate, nut, pad, sleeve pipe and frame, produces certain pretightning force to circulation wire rope.

Further, in duty, the circulation wire rope of climb-aiding device provides lifting power-assisted to climbing person, simultaneously the reaction force wire rope that can make to circulate stretches elongated, but tensile force can pass through driven climb assisting host and frame, acts directly on spring, makes spring-compressed, play cushioning effect, alleviate the stretcher strain of circulation wire rope.

Further, after circulation wire rope is used a period of time, while having lax trend, driven climb assisting host and slide block be because of the slowly slippage downwards of stretching with wire rope of the pretightning force of meeting spring, the state of the wire rope maintenance tensioning that makes to circulate.

Further, by adjusting adjusting bolt, can set the size of initial pretightning force, staff can regulate pretightning force as required, on the shutter of tensioning apparatus, mark adjust the correct position region of initial tension of spring, convenient adjusting.

Beneficial effect:

Technique scheme tool has the following advantages: tensioning apparatus is realized pretightning force by spring, can play the effect of buffering and tensioning, and circulation wire rope is played a protective role, and guarantees that climb-aiding device is always in tensioning state simultaneously; The pretightning force of spring can regulate by adjusting bolt, by the relative position of pressing plate indication end and shutter net region, can accurately adjust circulation wire rope in suitable tensioning state, even the field personnel without any experience, also can regulate rapidly and accurately tensioning circulation wire rope, make climb-aiding device keep the normal duty of using, save maintenance time, convenient adjusting, reduces maintenance difficulties and maintenance cost.

accompanying drawing explanation:

Fig. 1 is a kind of schematic diagram of climb-aiding device circulation steel wire rope stretching device;

Fig. 2 is the installation site schematic diagrames of each parts of climb-aiding device on cat ladder;

Fig. 3 is the schematic diagram that slide block can move up and down along frame long slot bore;

Fig. 4 is driving wheel in circulation wire rope and driven climb assisting host and the winding schematic diagram between two idle pulleys;

Fig. 5 is the position view of circulation steel wire rope looseness rear fender indication end and shutter net region;

Fig. 6 is the position view of circulation steel wire tensioning rear fender indication end and shutter net region

Wherein, 1: frame; 2: sleeve pipe; 3: slide block; 4: spring; 5: nut; 6: shutter; 7: pressing plate; 8: pad; 9: adjusting bolt; 10: top wheel assembly; 11: circulation wire rope; 12: cat ladder; 13: driven climb assisting host; 14: idle pulley; 15: driving wheel; 16: stop screw; 17: height adjusting block; 18: support member.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

As shown in Figure 1, the utility model climb-aiding device circulation steel wire rope stretching device comprises that frame 1, sleeve pipe 2, slide block 3, spring 4, nut 5, shutter 6, pressing plate 7, pad 8, adjusting bolt 9 form; Its mid frame 1 will be fixed between two riding clubs that cat ladder 12 downsides are adjacent, and driven climb assisting host 13 and circulation steel wire rope stretching device are played and supported and the effect being connected.

As shown in Figure 2, each parts of climb-aiding device are installed on cat ladder 12; Wherein top wheel assembly 10 will be installed between two adjacent riding clubs of cat ladder 12 upper ends, and for a fulcrum being provided to circulation wire rope 11, general top wheel assembly is positioned at cat ladder apical position; Driven climb assisting host 13 is installed between two adjacent riding clubs of cat ladder 12 lower ends; Circulation wire rope 11 forms a closed-loop path by top wheel assembly 10, driving wheel 15 and two idle pulleys 14, and this circulation wire rope 11 is realized lifting by the driving of driving wheel 15, thereby power-assisted is up or down provided to climbing person.

As shown in Figure 3, slide block 3 can move up and down by the long slot bore along frame 1 together with driven climb assisting host 13, and then compresses or discharge the spring 4 pulling tight in advance; Spring 4 provides necessary pretightning force to steel wire rope stretching device; Adjusting bolt 9 can be used to the pretightning force of control spring.

As shown in Figure 4,15, two idle pulleys 14 of the driving wheel on driven climb assisting host 13 are arranged on support member 18; Driving wheel 15 is driven by reducing motor, by the frictional force wire rope 11 that makes to circulate, moves up or down; Two idle pulleys 14 are for setting the spacing of circulation wire rope 11; Height adjusting block 17 is arranged in frame 1, is fixed on two riding clubs that cat ladder 12 downsides are adjacent together with frame 1; Stop screw 16 is arranged in height adjusting block 17.

Climb-aiding device is in running order when middle, 11 couples of climbing persons of circulation wire rope of climb-aiding device provide lifting power-assisted, simultaneously the reaction force wire rope 11 that can make to circulate stretches elongated, but tensile force can pass through driven climb assisting host 13 and frame 1, act directly on spring 4, make spring 4 compressions, play cushioning effect, alleviate the stretcher strain of circulation wire rope 11.

After climb-aiding device is being used a period of time, while having lax trend, driven climb assisting host 13 can slowly glide with slide block 3 under the spring force of spring 4 and the effect of self gravitation, the compression stroke of meeting retracting spring 4 between the slide block 3 of the pressing plate 7 in adjusting bolt 9 and downslide, the wire rope 11 that makes to circulate still keeps tensioning state, guarantees the stable operation of climb-aiding device.

As shown in Figure 5, while initially climb-aiding device being installed, the upper edge of pressing plate 7 indication ends will be positioned at the top of shutter 6 net regions; With instrument, will under adjusting bolt 9 clockwise directions, regulate, make spring 4 progressively compacted, spring force is delivered on the downside platform of slide block 3; Slide block 3 is under the effect of spring force, along the long slot bore of frame 1 moving down slowly, because slide block 3 and driven climb assisting host 13 are the integral body connecting together, so also drive driven climb assisting host 13 to move down together when slide block 3 moves down; The driving wheel 15 and two idle pulleys 14 that are fixed on support member also move down simultaneously, and the circulation wire rope 11 being wrapped on driving wheel 15 and two idle pulleys 14 also moves down under the pulling of external force, thereby the wire rope 11 that makes to circulate is tightened up; As shown in Figure 6, until the indication end of pressing plate 7 is arranged in the net region of shutter 6, now spring 4 offers the tensile force that circulation wire rope 11 is suitable, between driving wheel 15 and circulation wire rope 11, will can not skid, and can guarantee the stable operation of climb-aiding device.

Under the indication end of pressing plate 7 along in the net region in shutter 6, spring 4 can provide the pretightning force that meets the normal operation of climb-aiding device, in adjustment process, only need to turn adjusting bolt 9, band dynamic pressure plate 7 moves up and down, make under the indication end of pressing plate 7, along in the net region in shutter 6, to complete adjusting; Whole adjustment process is very convenient effectively.

Claims

1. a tensioning apparatus, is characterized in that described device comprises frame, slide block, spring, pressing plate, adjusting bolt, nut, pad, sleeve pipe, shutter; Described frame is fixed between two riding clubs that cat ladder downside is adjacent; Pad, sleeve pipe, pressing plate, spring penetrate in adjusting bolt successively, then put into together slide block, and adjusting bolt passes slide block and is screwed in the screwed hole of frame downside platform simultaneously, and it is standby tight with nut that bolt passes part; Shutter is arranged in slip front groove.

2. tensioning apparatus as claimed in claim 1, is characterized in that slide block is fixed on driven climb assisting host, and can move up and down along the long slot bore in frame, and realizes the compression of spring or release by adjusting bolt, pressing plate, pad and sleeve pipe.

3. tensioning apparatus as claimed in claim 1, is characterized in that by the size of adjusting bolt capable of regulating tensile force, on shutter mark the position of suitable pretightning force.