CN201339325Y

CN201339325Y - Tensioning device for stay cable

Info

Publication number: CN201339325Y
Application number: CNU2008202139076U
Authority: CN
Inventors: 白宝鲲
Original assignee: Guangdong Kinlong Hardware Products Co Ltd
Current assignee: Guangdong Kinlong Hardware Products Co Ltd
Priority date: 2008-11-26
Filing date: 2008-11-26
Publication date: 2009-11-04
Anticipated expiration: 2018-11-26

Abstract

The utility model relates to a tensioning device for a stay cable, which comprises a plurality of bearing draw rods, a fixed arm, a main arm and a plurality of hollow jacks, wherein the fixed arm is fixedly connected onto the bearing draw rods; the main arm is movably sleeved onto the bearing draw rods; and each hollow jack is fixedly sleeved onto each bearing draw rod, is propped against the main arm, and can push the main arm to move along the bearing draw rods. The jacks with hollow structures are sleeved onto the bearing draw rods symmetrically arranged on two sides of a cable anchor device and are pushed, this is, the draw rod or the stay cable of the cable anchor device is driven by the main arm sleeved on the bearing draw rods to act, thereby providing a stable and reliable force applying system.

Description

The tensioning equipment of drag-line

Technical field

The utility model relates to the instrument of a kind of building operations or maintenance, particularly employed instrument during a kind of cable-strut tensile structure installation and maintenance of curtain wall.

Background technology

Curtain wall, particularly curtain wall are widely used as the peripheral structure of building.And wherein, the dotted curtain wall is safe because of it, permeability good, structural change is many and it is ornamental to have, convenient maintenance and replacement and technical advance, in modern construction engineering, particularly obtains application more and more widely in the large common facility.

The dotted curtain wall generally comprises curtain wall slab, supporting construction (containing connector) and pedestal three parts such as (structures that the curtain buildings structure is rely and is located).Supporting construction can be divided into rigid supporting structure (as rigid frame, truss, rack, floor etc.) and flexible supporting structure.In the flexible supporting structure, cable-strut tensile structure the most commonly.

Cable-strut tensile structure is a flexible structure before stretch-draw not, and must being applied with suitably when being fixed on the constructure body structure, big prestressing force could form a rigid structures with supporting capacity.

But, under the very big situation of the pretightning force of drag-line, utilize the lift angle of screw thread to be difficult to the prestressing force of drag-line is reached designing requirement by the spanner rotary regulating sleeve, that is to say, in installation and work progress, prestressing force free-hand or that utilize existing instrument to regulate cable-strut tensile structure is inconvenient even comparatively difficult.

In sum, the installation and maintenance of existing curtain wall cable-strut tensile structure in the practice of construction process, obviously exists inconvenience and defective, is necessary to be improved.

Summary of the invention

In view of this, be necessary, a kind of reliable and stable force application system that has is provided at defective of the prior art, easy to use, conveniently learn the tensioning equipment of the prestressed drag-line of executing simultaneously.

A kind of tensioning equipment of drag-line comprises: many carrying pull bars; Fixed arm is fixed in the carrying pull bar; Principal arm, movable set is in the carrying pull bar; And a plurality of hollow type jack, each hollow type jack fixed cover is loaded on each carrying pull bar and withstands principal arm and can promote principal arm and move along the carrying pull bar.

Preferably, fixed arm is fixed in the tapered end end on the cable anchorage of drag-line, comprises the rocking arm of the pull bar of the connection tapered end that is fixed in cable anchorage.

Preferably, fixed arm is fixed in the tapered end end on the cable anchorage of drag-line, comprises the arm of holding tightly of the tapered end that is fixed in cable anchorage.

Preferably, holding arm tightly comprises: body; Extend the hook portion that forms from an end of body; Extend form circular from the other end of body around portion; And be located at brace around the portion two ends, brace is provided with connecting hole; A plurality of arms of holding tightly are symmetrical arranged, and hook portion is hooked the recess of tapered end, a plurality of braces around portion mutually over against and by bolt be arranged in over against two connecting holes in, be encircled into an annulus and hold periphery tightly around portion is affixed a plurality of at tapered end.

Preferably, principal arm is fixed in the pull bar or the drag-line of the connection drag-line of cable anchorage.

Preferably, the hollow type jack comprises tubular inwall and cylindrical outer wall diametrically from the inside to the outside and surrounds and form an oil pressure chamber, and piston is located in the oil pressure chamber and the outside that extend out to the hollow type jack is withstood principal arm and can be promoted principal arm and slides along the carrying pull bar.

Preferably, the tensioning equipment of drag-line further comprises oil pump, and oil pump is connected with a plurality of jack by high-pressure oil pipe.

Preferably, the tensioning equipment of drag-line further comprises threeway, and oil pump is connected with threeway by high-pressure oil pipe, and threeway is connected with a plurality of hollow type jack by high-pressure oil pipe again.

Preferably, oil pump adopts manual pump or electrodynamic pump.

Preferably, also be equiped with sensor in the threeway, sensor is connected with Displaying Meter by connecting line and applies pressure to prestressing force on the drag-line with demonstration.

Because adopt above-mentioned structure, the beneficial effects of the utility model comprise:

1, adopting the jack of hollow type structure to be sleeved on the carrying pull bar that is symmetricly set on the cable anchorage both sides and promote equally also is to be sleeved on pull bar or the drag-line action that principal arm on the carrying pull bar drives cable anchorage, and a reliable and stable force application system is provided.

2, the design of fixed arm and principal arm makes things convenient for tensioning equipment to be fixed in to be applied or regulates on the prestressed cable-strut tensile structure.

3, adopt the separate type design between the drive unit of jack and the jack, can oil pump be arranged on the correct position that leaves drag-line, the place operation oil pump that the operator can be convenient to operate according to the concrete condition of job site.

4, oil pressure actuated adopts a holder two (or a holder be'ss many) form, and promptly a table oil pump drives two (or a plurality of) jack simultaneously, and the oil pressure of two (or a plurality of) jack is consistent, and can avoid particularly regulating sleeve eccentric force of cable anchorage.

5, in the oil pressure actuated system oil pressure sensor can be installed, because tensioning equipment is directly to be connected on the drag-line, therefore under the situation that the carrying pull bar does not stress, the top power that jack produced just equals the pretightning force in the rope, just can directly read pretightning force in the drag-line by being connected Displaying Meter on the sensor.

Description of drawings

Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by detailed description to preferred embodiment of the present utility model.

In the accompanying drawing,

Fig. 1 is that the tensioning equipment of first kind of embodiment of the present utility model is installed in the structural representation on the cable anchorage;

Fig. 2 is the A-A generalized section of Fig. 1;

Fig. 3 is that the tensioning equipment of second kind of embodiment of the present utility model is installed in the structural representation on the cable anchorage;

Fig. 4 is the schematic perspective view of holding arm tightly among Fig. 3.

In the accompanying drawing,

1 cable anchorage

11 tapered ends, 11 ' tapered end, 12 pull bars, 13 regulating sleeves, 14 pull bars

2 drag-lines

3 tensioning equipments

30 rocking arms

30 ' hold arm tightly

301 ' body, 302 ' hook portion 303 ' around portion's 304 ' brace

305 ' connecting hole

31 carrying pull bars

32 principal arms

33 hollow type jack

331 outer walls, 332 inwalls, 333 oil pressure chambeies, 334 pistons

34 high-pressure oil pipes

35 threeways

36 sensors

37 connecting lines

38 Displaying Meters

39 oil pumps

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined purpose is taked, see also following about detailed description of the present utility model and accompanying drawing, believe the purpose of this utility model, feature and characteristics, should obtain thus going deep into and concrete understanding, yet drawings and embodiments only provide reference and explanation usefulness, are not to be used for the utility model is limited.

[embodiment 1]

As shown in Figure 1, drag-line 2 is fixed on the fixed structure of building by cable anchorage 1.Cable anchorage 1 comprises tapered end 11, pull bar 12, regulating sleeve 13 and pull bar 14.Drag-line 2 is fixed on an end of pull bar 14, the other end of pull bar 14 is equiped with regulating sleeve 13 with an end of pull bar 12 by being threaded, the other end of pull bar 12 is installed with tapered end 11, tapered end 11 is connected with fastening devices or other fastening devices on the constructure body structure, rotary regulating sleeve 13, promptly change the relative position that pull bar 12 and pull bar 14 screwed in or screwed out regulating sleeve 13, change the distance between pull bar 12 and the pull bar 14, thereby apply or regulate the prestressing force on the drag-line 2.

Tensioning equipment 3 in the present embodiment comprises rocking arm 30, two carrying pull bars 31, principal arm 32, two hollow type jack 33 and jack drive units.

Rocking arm 30 is fixed in an end of two carrying pull bars 31, and the position for being positioned at the two ends of rocking arm 30 on each carrying pull bar 31 shown in the figure respectively is provided with a hold-down nut, and is by tightening hold-down nut that rocking arm 30 and two carrying pull bars 31 is affixed.

Principal arm 32 is socketed on the other end of two carrying pull bars 31 and can slides along carrying pull bar 31.

Two hollow type jack 33 are fixedly set in two tip position that bear the other end of bar 31 respectively, Fig. 2 shows the structure of hollow type jack 33 with the form of cross section, comprise tubular inwall 332 and cylindrical outer wall 331 diametrically from the inside to the outside and surround forming an oil pressure chamber 333 that piston 334 is located in the oil pressure chamber 333 and the outside that extend out to jack 33 is withstood principal arm 32 and can be promoted principal arm 32 and slides along carrying pull bars 31.

In the work,, adjust the installation direction of tensioning equipment according to drag-line adjustable side (cable anchorage) diverse location in the space.Rocking arm 30 and principal arm 32 fastening clamps respectively is screwed into the appropriate location with the locking nut of tapered end end on pull bar 12 and pull bar 14; Carrying pull bar 31 be arranged in rocking arm 30 and the principal arm 32 and symmetric arrays in the both sides of cable anchorage 1, two hold-down nuts tightening rocking arm 30 places are with affixed rocking arm 30 and carrying pull bar 31; Again with two jack, 33 affixed being sleeved on two carrying pull bars 31.Jack 33 actions, its piston 334 promotes principal arm 32 and slides along carrying pull bar 31, drives pull bar 14 simultaneously and moves, in jack 33 actions, turn regulating sleeve 13 to guarantee moving of pull bar 14 by instrument (spanner), just implemented drag-line 2 is applied or regulate prestressing force.

In the present embodiment, jack 33 adopts the structure of hollow type, being sleeved on the carrying pull bar 31 that is symmetricly set on cable anchorage 1 both sides and promoting equally also is to be sleeved on pull bar 14 actions that the principal arm 32 that carries on the pull bar 31 drives cable anchorage 1, and force application system is reliable and stable.

Carrying pull bar 31 and jack 33 can be designed to a plurality of (more than two) as required.

In the present embodiment, adopt the separate type design between the drive unit of jack and the jack, comprise oil pump 39 and threeway 35, oil pump 39 is connected with threeway 35 by high-pressure oil pipe 34, threeway 35 is connected with two hollow type jack 33 by high-pressure oil pipe 34 again, can make oil pump 39 be arranged on the correct position that leaves drag-line 2 by the length of adjusting high-pressure oil pipe 34, the place operation oil pump that the operator can be convenient to operate.Oil pump 39 can adopt manual pump or electrodynamic pump.Also be equiped with sensor 36 in the threeway 35, sensor 36 is connected with Displaying Meter 38 by connecting line 37, to show oil pressure, can learn the prestressing force that puts on the drag-line 2.Oil pressure actuated adopts a holder two (or a holder be'ss many) form, and promptly a table oil pump drives two (or a plurality of) jack simultaneously, and the oil pressure of two (or a plurality of) jack is consistent, and can avoid the cable anchorage eccentric force.

[embodiment 2]

As shown in Figure 3 and Figure 4, the structure and the operating principle of the tensioning equipment of embodiment 2 are substantially the same manner as Example 1, and difference only is, cooperates the tapered end 11 ' employing of different structure to hold arm 30 ' replacement rocking arm 30 tightly.Hold arm 30 ' comprising tightly: body 301 ', from body 301 ' an end extend the hook portion 302 form ', from body 301 ' the other end extend the semi-annular shape form around portion 303 ', around portion 303 ' two ends be provided with brace 304 ', brace 304 ' be provided with connecting hole 305 '.Hold arm 30 ' be symmetrical arranged tightly for two, two hook portions 302 ' hook tapered end 11 ' recess, two around portion 303 ' brace 304 ' mutually over against and by bolt be arranged in over against two connecting holes 305 ' in, with two around portion 303 ' affixed be encircled into an annulus hold tightly tapered end 11 ' the periphery.

In addition, main wall 32 is affixed being held on the drag-line 2.

Tensioning equipment of the present utility model can adopt different rocking arms or the structure of holding arm tightly according to different cable anchorages.

As known by the technical knowledge, the utility model can be realized by other the embodiment that does not break away from its spiritual essence or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All in the utility model scope or the change that is being equal in the scope of the present utility model all be included in the utility model.

Claims

1, a kind of tensioning equipment of drag-line is characterized in that, comprising:

Many carrying pull bars;

Fixed arm is fixed in this carrying pull bar;

Principal arm, movable set carries pull bar in this; And

A plurality of hollow type jack, this each hollow type jack fixed cover are loaded on this each carrying pull bar and withstand this principal arm and can promote this principal arm and move along this carrying pull bar.

2, the tensioning equipment of drag-line according to claim 1 is characterized in that, this fixed arm is fixed in the tapered end end on the cable anchorage of drag-line, comprises the rocking arm of the pull bar of the connection tapered end that is fixed in cable anchorage.

3, the tensioning equipment of drag-line according to claim 1 is characterized in that, this fixed arm is fixed in the tapered end end on the cable anchorage of drag-line, comprises the arm of holding tightly of the tapered end that is fixed in cable anchorage.

4, the tensioning equipment of drag-line according to claim 3 is characterized in that, this is held arm tightly and comprises:

Body;

Extend the hook portion that forms from an end of this body;

Extend form circular from the other end of this body around portion; And

Be located at this brace around the portion two ends, this brace is provided with connecting hole;

A plurality of arms of holding tightly are symmetrical arranged, and this hook portion is hooked the recess of this tapered end, these a plurality of braces around portion mutually over against and by bolt be arranged in this over against two connecting holes in, this a plurality ofly is encircled into an annulus and holds periphery at this tapered end tightly around portion is affixed.

According to the tensioning equipment of claim 2 or 3 described drag-lines, it is characterized in that 5, this principal arm is fixed in the pull bar or the drag-line of the connection drag-line of cable anchorage.

6, the tensioning equipment of drag-line according to claim 1, it is characterized in that, this hollow type jack comprises tubular inwall and cylindrical outer wall diametrically from the inside to the outside and surrounds and form an oil pressure chamber, and this piston is located in this oil pressure chamber and the outside that extend out to this hollow type jack is withstood this principal arm and can be promoted this principal arm along this carrying pull bar slip.

7, the tensioning equipment of drag-line according to claim 1 is characterized in that, further comprises oil pump, and this oil pump is connected by a plurality of jack of high-pressure oil pipe and this.

8, the tensioning equipment of drag-line according to claim 7 is characterized in that, further comprises threeway, and this oil pump is connected with this threeway by high-pressure oil pipe, and this threeway is connected by a plurality of hollow type jack of high-pressure oil pipe and this again.

9, the tensioning equipment of drag-line according to claim 7 is characterized in that, this oil pump adopts manual pump or electrodynamic pump.

10, the tensioning equipment of drag-line according to claim 8 is characterized in that, also is equiped with sensor in this threeway, and this sensor is connected with Displaying Meter by connecting line and applies pressure to prestressing force on the drag-line with demonstration.