CN100357523C

CN100357523C - Rotation displacement type cable saddle

Info

Publication number: CN100357523C
Application number: CNB2005100029477A
Authority: CN
Inventors: 徐国彬; 崔玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-26
Filing date: 2005-01-26
Publication date: 2007-12-26
Anticipated expiration: 2025-01-26
Also published as: CN1632228A

Abstract

The present invention discloses a rotary displacement type cable saddle which comprises a base of the cable saddle and an upper cover of the cable saddle, wherein a cable slot is arranged on the supine surface of the upper cover of the cable saddle; the upper cover of the cable saddle is buckled on the base of the cable saddle; moreover, the upper cover of the cable saddle and the base of the cable saddle can correspondingly slide; the sliding contact surface of the upper cover of the cable saddle and the base of the cable saddle has an arc shape in the direction of the cable slot, wherein the arc shape has a high middle and low both ends; the base of the cable saddle and the upper cover of the cable saddle are movably connected for avoiding being separated. The rotary displacement type cable saddle can reduce or prevent the abrasion of a bracing cable by the sliding position between the upper cover of the cable saddle and the base of the cable saddle for enhancing the safety of a bridge or a building structure.

Description

Rotation displacement type cable saddle

Technical field

The present invention relates to a kind of cable saddle, is a kind of drag-line saddle that suspension cable or Suo Tuoshi bridge and building structure are used, and is used for the drag-line supporting.

Background technology

In suspension bridge or suspension building structure, and in the cable supporting bridge or compound rope holder building structure of inventor's invention, as shown in Figure 5, drag-line 200 will stride across the cable saddle 100 at king-tower 300 tops, and promptly king-tower 300 will support by 100 pairs of drag-lines 200 of cable saddle.Because the variation of load, or the influence of wind, earthquake, drag-line 200 instantaneous variation can occur at the suffered pulling force in cable saddle 100 both sides, cause drag-line to be subjected to force unbalance in the cable saddle both sides, this moment drag-line 200 can with respect to king-tower 300 to the left or the right side move, because cable saddle 100 is fixed, so this moment, drag-line 200 will slide on cable saddle 100.Because drag-line is bearing huge pulling force, so drag-line is very huge to the pressure that cable saddle produces, therefore can produce huge frictional force between drag-line 200 and the cable saddle 100, cause the heavy wear of drag-line 200, particularly this wearing and tearing all occur in the concentrated area that drag-line contacts with cable saddle, not only can reduce the application life of drag-line, more seriously bridge or building structure be faced with that Yin Lasuo 200 is broken or main load-bearing king-post under the effect of significant horizontal power, cause the bottom huge bending moment, greatly reduce this type of reliability of structure, even may stride and collapse.Equally, because the existence of this frictional force, cable saddle 100 that also makes and king-tower 300 constantly are subjected to pulling force to the left or to the right, the possibility that makes cable saddle 100 and king-tower 300 fatigue fractures are also arranged, the danger that can make bridge or building structure occur collapsing and spoil equally.

Summary of the invention

The problems referred to above at the unbalanced existence of existing cable saddle Yin Lasuo pulling force, the object of the present invention is to provide a kind of rotation displacement type cable saddle, adopt the cable saddle of this structure, when the drag-line discontinuity equalization, displacement mainly occurs on the cable saddle, relative displacement or displacement are little, frictional force is low and can not produce between drag-line and the cable saddle, can effectively prevent the generation of above-mentioned danger, have guaranteed that simultaneously the drag-line internal force of cable saddle both sides equates.

The present invention adopts following technical scheme: rotation displacement type cable saddle, comprise cable saddle base and a cable saddle loam cake, cable saddle loam cake upper surface has the rope groove, the cable saddle loam cake is buckled on the cable saddle base and both can relatively rotate and slide, sliding contact surface between the two is the low arc in middle high two ends on rope groove direction, cable saddle base and cable saddle loam cake flexibly connect in case anti-avulsion from.

For preventing that the cable saddle loam cake from sliding on the direction vertical with the rope groove with respect to the cable saddle base, the cable saddle base can have the convex-concave tongue and groove position limiting structure consistent with rope groove direction with the contact surface place of cable saddle loam cake.

Described convex-concave tongue and groove position limiting structure can be the protruding tongue and groove at cable saddle loam cake place, then has on the cable saddle base and the corresponding recess of protruding tongue and groove; Or covered recess on the cable saddle, corresponding protruding tongue and groove is arranged on the cable saddle base.

Recess on the described cable saddle base can be made of the cable saddle side plate of cable saddle base both sides and the upper surface of cable saddle base, and the top edge of two side plates is higher than the structure of the upper surface formation intermediate recesses of cable saddle base.

For flexibly connecting cable saddle base and cable saddle loam cake also spacing mutually, the present invention further improves, cable saddle loam cake place in rope groove end positions, the horizontal chimb that oriented cable saddle base direction level protrudes out, on cable saddle base respective side walls, horizontal groove is set accordingly, and the chimb that covers on the cable saddle is buckled in the horizontal groove on the cable saddle base, the height of horizontal groove greater than the chimb height that covers on the cable saddle so that the cable saddle loam cake can have certain displacement with the cable saddle base.Between the bottom surface of above-mentioned chimb soffit and described cable saddle base horizontal groove sealing ring can be housed, the vertical cross-section of sealing ring is a V-arrangement, and its upper and lower surface can be provided with at least one groove.

Can be provided with polyfluortetraethylene plate between the sliding-contact surface of described cable saddle loam cake and cable saddle base.

Can be provided with polyfluortetraethylene plate in the rope groove that on described cable saddle, covers.

Rotation displacement type cable saddle of the present invention, form by cable saddle loam cake and cable saddle base, because of the cable saddle loam cake is buckled on the cable saddle base, when drag-line occurs being subjected to force unbalance, stiction between drag-line and the cable saddle loam cake makes the cable saddle loam cake produce the displacement that horizontally slips with respect to the cable saddle base, and no relative displacement or small relative displacement is only arranged between drag-line and the cable saddle loam cake, drag-line substantially can not wear and tear; Because the contact area between cable saddle loam cake and the cable saddle base is much larger than the contact area between drag-line and the cable saddle, so pressure reduces greatly between cable saddle loam cake and the cable saddle base, friction level is very little, can improve the safety of suspension cable or Suo Tuoshi bridge or building structure greatly.In addition, because can produce displacement between cable saddle loam cake and the cable saddle base, reduce the effect that the cable saddle base is subjected to the frictional force of the left and right sides, can guarantee the fastness that is connected and fixed between cable saddle base and the king-tower.

Description of drawings

Fig. 1 partly cuts open structural representation for rotation displacement type cable saddle of the present invention.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 partly cuts open structural representation for the right view of Fig. 1.

Fig. 4 is the vertical cross-section figure of the sealing ring shown in Fig. 3.

Fig. 5 is the correlation schematic diagram of drag-line and cable saddle.

The specific embodiment

Below in conjunction with the drawings and specific embodiments rotation displacement type cable saddle structure of the present invention is described further, to help understanding content of the present invention.

Embodiment 1

By Fig. 1 and shown in Figure 3, rotation displacement type cable saddle in the present embodiment is made up of cable saddle loam cake 4 and cable saddle base 3, at cable saddle loam cake 4 upper surfaces rope groove 10 is arranged, by Fig. 1 as can be seen in conjunction with Fig. 3, cable saddle loam cake 4 soffits with and its cable saddle base 3 upper surfaces that cooperate be the low arcs in middle high two ends in rope groove 10 directions, the cable saddle loam cake that is buckled on the cable saddle base can be slided in rope groove direction, and both link to each other to prevent separation.

Throw off for preventing cable saddle loam cake 4 and cable saddle base 3, can be as shown in Figure 1, the position that is positioned at rope groove both ends on 4 pairs of cable saddle loam cakes is provided with the chimb 40 that protrudes out to cable saddle base direction, on two sidewalls of cable saddle base 3 correspondences, horizontal groove 30 is set, chimb 40 is buckled in the horizontal groove 30 interior formation tongue and groove interlocks on the cable saddle base, the height of horizontal groove 30 greater than the height of the chimb 40 that covers on the cable saddle so that cable saddle loam cake 4 can have certain displacement with cable saddle base 3, this height according to rotate and the slide displacement amount definite by calculating.

For preventing that cable saddle loam cake 4 from moving in the direction vertical with rope groove 10, slide plane at cable saddle base 3 and cable saddle loam cake 4 is provided with convex-concave tongue and groove position limiting structure, convex-concave tongue and groove position limiting structure in the present embodiment is by the fixing cable saddle side plate 1 of screw and pad 2 in cable saddle base 3 both sides, cable saddle side plate 1 top edge is the arc parallel with the curved upper surface of cable saddle base 3, and the upper surface that its top is higher than cable saddle base 3 forms the recess on the cable saddle base 3, downward bossing is positioned at recess in the middle of the cable saddle loam cake, cable saddle loam cake 4 is limited between two cable saddle side plates 1 from both sides by cable saddle side plate 1, pulls down cable saddle side plate 1 and can realize Fig. 1, the assembling of buckle structure shown in Figure 2 and separation.

For preventing that dust etc. from entering between the chimb 40 of cable saddle loam cake and groove 30 bottoms on the cable saddle base to influence the result of use of cable saddle, in this position sealing ring 7 can be housed as shown in fig. 1, the vertical cross-section structure of sealing ring 7 as shown in Figure 4, be V-arrangement, make it enough deformabilities be arranged to guarantee of the relative slip of cable saddle loam cake with respect to the cable saddle base.And, more satisfactory mode is that the upper and lower surface at sealing ring all has groove 71, as more powerful wind when small gap is blown between the surface of sealing ring 7 and cable saddle base or cable saddle loam cake with dust, because of increasing in space, groove 71 place, air velocity reduces, dust can be fallen in the groove 71, prevent to be blown into inwards further.Sealing ring 7 is pushed down by cable saddle side plate 1 as shown in Figure 3 in other two sides.

For reducing slip resistance and the cable saddle skimming wear being reduced, as a kind of preferred embodiment of cable saddle, can also between cable saddle loam cake 4 and cable saddle base 3, be provided with polyfluortetraethylene plate 6 in the present embodiment.Equally, in rope groove 10, also be provided with polyfluortetraethylene plate 5, so that frictional force reduces, weares and teares and reduce between drag-line and the rope rooved face.

For preventing that cable saddle loam cake 4 slides with respect to cable saddle base 3 on cable saddle is in transportation, around cable saddle, it is connected to each other fixing by connecting steel plate 8 and screw 9, after being in place, removes again cable saddle.

When drag-line is subjected to force unbalance, drag-line at the instantaneous pulling force of cable saddle one side greater than opposite side, then the frictional force between drag-line and the cable saddle loam cake makes the cable saddle loam cake slide and rotation to a side with respect to the cable saddle base, to overcome the unbalanced influence of pulling force, when the opposite side pulling force increased, the cable saddle loam cake is reverse slide and rotation then, made drag-line can or small slip only not arranged with respect to the slip of cable saddle loam cake, reduce wear the trend of twisting about the while also makes and can not produce between cable saddle base and the king-tower.And even between drag-line and the cable saddle loam cake small slip is arranged, because of the effect of polyfluortetraethylene plate, it is also very little to wear and tear, and has protected the safety of bridge or building structure.

Claims

1, a kind of rotation displacement type cable saddle, it is characterized in that: comprise cable saddle base and a cable saddle loam cake, cable saddle loam cake upper surface has the rope groove, the cable saddle loam cake is buckled on the cable saddle base and both can slide relatively, sliding contact surface between the two is the low arc in middle high two ends on rope groove direction, and cable saddle base and cable saddle loam cake are movably connected and separate preventing.

2, rotation displacement type cable saddle as claimed in claim 1 is characterized in that: with the contact surface place of cable saddle loam cake the convex-concave tongue and groove position limiting structure consistent with rope groove direction arranged at the cable saddle base.

3, rotation displacement type cable saddle as claimed in claim 2 is characterized in that: described convex-concave tongue and groove position limiting structure is the protruding tongue and groove at cable saddle loam cake place, and the recess that cooperates with protruding tongue and groove is then correspondingly arranged on the cable saddle base; Or covered recess on the cable saddle, corresponding protruding tongue and groove is arranged on the cable saddle base.

4, rotation displacement type cable saddle as claimed in claim 3, it is characterized in that: the recess on the described cable saddle base is made of the cable saddle side plate of cable saddle base both sides and the upper surface of cable saddle base, and the upper surface that the top edge of two side plates is higher than the cable saddle base forms umbilicate structure.

5, as described rotation displacement type cable saddle one of in the claim 1 to 4, it is characterized in that: at the cable saddle loam cake position that is positioned at rope groove end positions, the horizontal chimb that oriented cable saddle bottom direction level protrudes out, on cable saddle base respective side walls, horizontal groove is set accordingly, and the chimb that covers on the cable saddle is buckled in the horizontal groove on the cable saddle base, the height of horizontal groove greater than the chimb height that covers on the cable saddle so that the cable saddle loam cake can have certain displacement with the cable saddle base.

6, rotation displacement type cable saddle as claimed in claim 5 is characterized in that: between the bottom surface of above-mentioned chimb soffit and described cable saddle base horizontal groove sealing ring is housed, the vertical cross-section of sealing ring is a V-type.

7, rotation displacement type cable saddle as claimed in claim 6 is characterized in that: the upper and lower surface of described sealing ring is provided with at least one groove.

8, as described rotation displacement type cable saddle one of in the claim 1 to 4, it is characterized in that: be provided with polyfluortetraethylene plate between the sliding-contact surface of described cable saddle loam cake and cable saddle base.

9, as described rotation displacement type cable saddle one of in the claim 1 to 4, it is characterized in that: be provided with polyfluortetraethylene plate in the rope groove that on described cable saddle, covers.