[utility model content]
The purpose of the utility model is to provide a kind of directive wheels, are located at so that in reeving steel strands, directive wheel is able to cooperate
Reeving direction and rotating for steel strand wires on its surface, enables steel strand wires to penetrate bellows with any bending angle, avoids directly
Friction is generated with works or hanging basket's components and is worn, and ensure that the complete of steel strand wires, so that it is guaranteed that pre-stress construction matter
Amount.
To realize the purpose, the utility model adopts the following technical solution:
The utility model provides a kind of directive wheel, and for assisting prestress wire to reeve, the directive wheel includes leading
To wheel body and be used to support the guiding wheel body turn shaft support, and the guiding wheel body includes roller and from the rolling
The idler wheel that each extends over out of two bottom surfaces of cylinder, the guiding wheel body be provided with through the guiding wheel body and both ends with it is described
The connecting shaft of bracket connection, so that the guiding wheel body is using the connecting shaft as shaft.
Preferably, the idler wheel is in horn-like.
Further, the outer surface of the roller is circumferentially provided with guide groove.
Preferably, the guiding wheel body is made of wear-resistant material.
Preferably, the connecting shaft both ends are fixedly connected with the bracket, and the guiding wheel body and the connecting shaft are logical
Cross bearing rotation connection.
Preferably, the guiding wheel body and the connecting shaft are affixed integral, the connecting shaft and the holder pivots
Connection.
Further, the bracket includes: support frame, is clamped in the guiding wheel body two sides, is led for remaining described
To the rotary state of wheel body;Fixed frame is fixedly connected with support frame as described above, for the guiding wheel body to be fixed on engineering
On interface.
Further, the side of the fixed frame is fixed with support frame as described above, and the other side is connected with two fining twisted steels,
It is equipped with pressure plate on the fining twisted steel, to compress engineering interface under the action of nut.
Further, steel plate is connected on the fining twisted steel, the steel plate is located at the fixed frame and the compression
Between plate, offer threaded hole on the steel plate, with matched with fastener attack it is vertical with the pressure plate on tight engineering interface
Side.
Preferably, support frame as described above is made of channel steel.
Compared with prior art, the utility model has following advantage:
1. directive wheel provided by the utility model, guiding wheel body is provided with through the guiding wheel body and both ends and branch
The connecting shaft of frame connection, so that the guiding wheel body using the connecting shaft as shaft, in reeving steel strands, is oriented to wheel body
It is able to cooperate reeving direction and rotating for the steel strand wires being located on its surface, steel strand wires is enable to penetrate ripple with any bending angle
Pipe avoids directly generating with works or hanging basket's components and rubs and wear, ensure that the complete of steel strand wires, so that it is guaranteed that in advance
Stress construction quality.In addition, the wheel design of the utility model is simple, easy for installation, cost of manufacture is cheap, existing using construction
The common material in field can be made into.
2. directive wheel provided by the utility model, the idler wheel can prevent the steel being located on cylinder surface from twisting in horn-like
Line is displaced disengaging.
3. the outer surface of the roller is circumferentially provided with guide groove, steel strand wires complete lashing along the guide groove, so that
Steel strand wires can be run by desired guiding trajectory, and left and right is avoided to slide.
4. the guiding wheel body is made of wear-resistant material, to extend the service life of directive wheel.
5. the side of the fixed frame is fixed with support frame as described above, the other side is connected with two fining twisted steels, the essence
It rolls and is equipped with pressure plate on screw-thread steel, to compress engineering interface under the action of nut, thus solid according to longitudinal prestressing position
Determine directive wheel, fining twisted steel is directly tightened by nut can be fixed at the desired position directive wheel, is easily installed and tears open
Unload directive wheel.
The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description
In become obvious, or recognized by the practice of the utility model.
[specific embodiment]
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
As shown in Figure 1-3, the utility model provides a kind of directive wheel, it is described for assisting prestress wire to reeve
Directive wheel includes being oriented to wheel body 1 and be used to support the guiding wheel body 1 turns shaft support 2, the packet of guiding wheel body 1
The idler wheel 12 for including roller 11 and each extending over out from 11 two bottom surfaces of the roller, roller 11 and idler wheel 12 are affixed integral, can
Be made of same material, the guiding wheel body 1 is axially hollow, be provided with through the guiding wheel body 1 and both ends with
The connecting shaft 13 that the bracket 2 connects, so that the guiding wheel body 1 is shaft with the connecting shaft 13, around the connecting shaft
13 rotate clockwise or counterclockwise.
It should be noted that be to guarantee to reeve efficiency and protect steel strand wires as far as possible, it can be in advance in prestressing tendon before reeving
End is set up defences scattered protective case, when work, starts variable-frequency motor, under the drive of variable-frequency motor, steel strand wires draw along directive wheel
It leads direction and penetrates bellows, complete lashing.For longer steel beam, guide wheel group also can be used, that is, two groups or more is set
Directive wheel, to reduce requirement to power of motor.
Directive wheel provided by the utility model, guiding wheel body 1 are provided with through the guiding wheel body 1 and both ends and branch
The connecting shaft 13 that frame 2 connects, so that the guiding wheel body 1 is shaft with the connecting shaft 13, in reeving steel strands, guiding
Wheel body 1 is able to cooperate reeving direction and rotating for the steel strand wires on its surface, and steel strand wires is enable to wear with any bending angle
Enter bellows, specifically, steel strand wires using its contact point with roller 11 as supporting point, and around the support spot wobble, wear by adjustment
Suo Fangxiang, adjustment direction can be (not including end value) between 0 ° -180 °, for example, in bridge construction, beam face and steel strand wires are worn
The direction of reeving of steel strand wires can be adjusted to 90 ° on directive wheel by the way that the directive wheel is arranged for 90 ° of dog-ears by entrance, to avoid
Steel strand wires directly generate friction with works or hanging basket's components and wear, and ensure that the complete of prestress wire, thus
Ensure pre-stress construction quality.In addition, the wheel design of the utility model is simple, easy for installation, cost of manufacture is cheap, uses
The common material in construction site can be made into.
Preferably, the idler wheel 12 of the directive wheel is in horn-like, and in one embodiment of the utility model, idler wheel 12 is straight
Diameter is gradually increased using the diameter of roller 11 as basic point with far from roller 11.In addition, 12 diameter of idler wheel can also be greater than roller 11
Diameter, and with far from roller 11 and be gradually reduced, thus prevent be located at 11 surface of roller on steel strand wires be displaced disengaging.
Further, the outer surface of the roller 11, which is circumferentially provided in guide groove or connecting shaft 13, is arranged U-shaped limit plate
(muscle) avoids left and right from sliding or be upwardly separated from guide groove so that steel strand wires can be run by desired guiding trajectory.The width and depth of guide groove
Degree can be according to the size design of steel strand wires, and various sizes of guide groove can be designed on the surface of the same directive wheel, with full
The various sizes of steel strand wires of foot are reeved.Slip-resistant texture is contained in the outer surface of the roller 11, for enhancing steel strand wires and roller
Frictional force between 11, in reeving steel strands, steel strand wires can be adjusted using any position on 11 surface of roller as supporting point
It reeves direction, and drives guiding wheel body 1, reeving direction and rotating for steel strand wires can be cooperated.
Preferably, the guiding wheel body 1 is made of wear-resistant material, such as wear-resisting hard plastic, to extend directive wheel
Service life.More preferably, the guiding wheel body 1 is made of Fypro, make it have high mechanical strength, wearability it is strong and
The good advantage of deformation resistance.
Preferably, 13 both ends of connecting shaft can be fixedly connected with the bracket 2 by welding, the directive wheel
Main body 1 and the connecting shaft 13 are rotatablely connected by bearing.More preferably, one is all provided at the both ends of the guiding wheel body 1
A bearing reduces the friction between guiding wheel body 1 and shaft with support guide wheel body 1, guarantees the flexible of guiding wheel body 1
Rotation.Pouring orifice or oiling groove are offered in the connecting shaft 13, positioned at the junction of connecting shaft 13 and bearing, to realize to axis
The lubrication held.
In another embodiment of the utility model, the guiding wheel body 1 is affixed integral with the connecting shaft 13,
The connecting shaft 13 is rotatablely connected with the bracket 2, and bracket 2 and connecting shaft 13 border on the part material system smooth using surface
At, or realized and be rotatablely connected by bearing, to reduce friction between the two.Pouring orifice or note are offered in the connecting shaft 13
Oil groove, positioned at the junction of connecting shaft 13 and bracket 2, to realize the effect lubricated it.
Further, the bracket 2 includes: support frame 21, is clamped in 1 two sides of guiding wheel body, and be connected thereto
Axis 13 connects, for maintaining the rotary state of the guiding wheel body 1;Fixed frame 22 is fixedly connected with support frame as described above 21, is used
It is fixed on engineering interface in by the guiding wheel body 1, which can provide fixation for any one for directive wheel
The structure in place, such as steelframe, construction hanging basket or stiff skeleton.Preferably, the fixed frame 22 is 14# channel steel.
In one embodiment of the utility model, through-hole is offered on fixed frame, to pass through fixed frame by fastener
22, guiding wheel body 1 is fixed on engineering interface.
In another embodiment of the utility model, the side of the fixed frame 22 and support frame as described above 21 are fixed, separately
Side is connected with two fining twisted steels 23, and one end of close fixed frame 22 is equipped with external screw thread on the fining twisted steel 23, and
It is equipped with pressure plate 24, drives pressure plate 24 close to fixed frame 22 under the action of nut 25, after tightening nut 25, with pressure
Tight engineering interface.To directly tighten fining twisted steel 23 i.e. by nut 25 according to longitudinal prestressing position fixed guide wheel
Can be fixed at the desired position by directive wheel, it is easily installed and dismantles directive wheel;It can also be led by adjusting setting angle with adjustment
To the channeling direction of wheel.Preferably, the diameter of the fining twisted steel 23 is 2cm, and the pressure plate 24 is the steel plate of 2cm thickness.
Further, the steel plate 26 of one piece of 2cm thickness is respectively connected on the fining twisted steel 23, the steel plate 26 is located at institute
It states between fixed frame 22 and the pressure plate 24, two blocks of steel plates 26 are divided into left and right two vertical with pressure plate on engineering interface
Side, to clamp engineering interface.Threaded hole is offered on the steel plate 26, further attacks tight engineering interface to match with fastener
The left and right sides.
Preferably, support frame as described above 21 is made of two blocks of 14# channel steels, is distributed in the two sides of guiding wheel body 1, the slot of channel steel
Mouth is arranged away from guiding wheel body 1, the rigidity stabilization of channel steel, intensity height, corrosion-resistant, long service life.
The utility model uses in Hanging Basket cast-in-situ box girder longitudinal prestressing is reeved, from the point of view of field conduct effect,
Relative to previous mode of directly reeving, the utility model is effectively protected the quality of prestress wire, improves and reeve
Efficiency, and saved and reeved artificial, it is artificial that a branch of longitudinal prestressing steel strand wires of often reeving can save 0.5, and to save 2 small
When time.
Although having been illustrated with some exemplary embodiments of the utility model above, those skilled in the art will
Understand, in the case where not departing from the principles of the present invention or spirit, these exemplary embodiments can be made a change, this
The range of utility model is defined by the claims and their equivalents.