Contact line dropper wire clamp, carrier cable dropper wire clamp and integral dropper

Abstract

The utility model discloses a contact line dropper wire clamp, a carrier cable dropper wire clamp and an integral dropper. In the contact line dropper wire clamp, a wire clamping jaw formed by a first wire clamping clamp and a second wire clamping clamp clamps a contact line under the action of insertion matching of a first wedge and a first wedge-shaped tensioning groove channel, and no part of the whole contact line dropper wire clamp is connected through a bolt. And the fault of wire loosening caused by loosening of a nut on a bolt between connecting parts of a contact wire dropper wire clamp in an existing integral dropper is avoided. In the carrier cable dropper wire clamp, a wire clamping hoop formed by a first wire clamping hoop and a second wire clamping hoop tightly holds a carrier cable under the action of inserting and matching of a second wedge and a second wedge-shaped tensioning groove channel, and no part of the whole carrier cable dropper wire clamp is connected through a bolt. And the fault of wire loosening caused by loosening of the nut on the bolt between connecting parts of the carrier cable dropper wire clamp in the existing integral dropper is avoided. And the integral dropper adopts a wedge tensioning mode to clamp the contact line or hold the carrier cable.

Description

Technical Field

[0001] The utility model belongs to the field of railway construction, and relates to an integral suspension string, in particular to a novel contact line suspension string clamp, a load-bearing cable suspension string clamp and an integral suspension string. Background Art

[0002] The "integral suspension string" is a suspension device in the flexible suspension of the electrified railway contact network system. The top of the integral suspension string clamps the load-bearing cable and the bottom clamps the contact wire, thereby suspending the contact wire on the load-bearing cable. With the continuous development of railway construction over the years, especially with the continuous increase in train speed and contact network performance level, the technical requirements for integral suspension strings are also constantly increasing.

[0003] In the existing integral suspension string, the suspension string clamps are mostly connected by bolts and nuts. Not only is the assembly cumbersome, time-consuming and labor-intensive, but also the contact network is elastic, and under the action of the moving pantograph, the contact network will vibrate, which makes it easy for the bolts and corresponding nuts between the parts of the suspension string clamp to loosen, which in turn causes the two parts connected by the bolts to move relative to each other, accelerates the mutual wear between the parts, and reduces the service life of the suspension string clamp. In addition, if the loose nut is not discovered in time, it will cause the failure of derailment, which not only reduces the operating reliability of the electrified railway contact network system, but also increases the operating and maintenance costs of the electrified railway contact network system. Utility Model Content

[0004] The utility model aims to provide a novel contact line suspension string clamp, load-bearing cable suspension string clamp and integral suspension string, so as to solve the problem that the bolts and nuts in the above-mentioned existing suspension string clamps are easy to loosen, which not only accelerates the wear of parts, but also easily causes the failure of derailment, thereby affecting the operational reliability of the electrified railway contact network system.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a contact line suspension string clamp, comprising:

[0007] A first contact line string suspension clamp, a first end of which is provided with a first wire clamp, and a first suspension ring limiting structure is also provided on the first contact line string suspension clamp;

[0008] A second contact wire suspension clamp, a first end of which is provided with a second wire clamp, and a second suspension ring limiting structure is also provided on the second contact wire suspension clamp; the second contact wire suspension clamp is riveted to the first contact wire suspension clamp through a first pin shaft, so that a wire clamp opening for clamping the contact wire is formed between the first wire clamp and the second wire clamp, and a first wedge-shaped tensioning groove is formed between the second end of the first contact wire suspension clamp and the second end of the second contact wire suspension clamp;

[0009] The first U-shaped lifting ring has two side arms of its open end respectively provided with third lifting ring limiting structures, the open end of the first U-shaped lifting ring is embedded in the first wedge-shaped tightening groove, and the two third lifting ring limiting structures are respectively matched with the first lifting ring limiting structure and the second lifting ring limiting structure to realize the positioning of the first U-shaped lifting ring in the first wedge-shaped tightening groove; the first U-shaped lifting ring is used for the lifting string to pass through;

[0010] The first wedge is adapted to the contour of the first wedge-shaped tightening groove, and the first wedge is inserted into the first wedge-shaped tightening groove to apply a tightening force toward both sides of the first wedge-shaped tightening groove, so that the wire clamping jaws clamp the contact wire.

[0011] Optionally, the first wedge-shaped tightening groove is a first trapezoidal tightening groove with an isosceles trapezoidal cross-section, the large end of the cross-section of the first trapezoidal tightening groove faces the wire clamping jaw, and the inclined wedge surfaces on both sides of the first trapezoidal tightening groove are respectively located on the inner side of the second end of the first contact line string clamp and the inner side of the second end of the second contact line string clamp; a wedge positioning protrusion located on the large end of the cross-section of the first trapezoidal tightening groove is respectively provided on the inner side of the second end of the first contact line string clamp and the inner side of the second end of the second contact line string clamp.

[0012] Optionally, grooves for accommodating the side arms of the first U-shaped lifting ring are provided in the middle of the inclined wedge surfaces on both sides of the first trapezoidal tightening groove, and the first lifting ring limiting structure and the second lifting ring limiting structure are both positioning holes opened at the grooves; the third lifting ring limiting structure is a positioning block adapted to the positioning hole, and the first U-shaped lifting ring is plugged into and matched with the positioning hole through the positioning block and is hung in the first trapezoidal tightening groove.

[0013] Optionally, the axial direction of the first wedge-shaped tightening groove is parallel to the first pin shaft, and the cross-sectional area of ​​the first wedge-shaped tightening groove gradually decreases from the first axial end to the second axial end thereof; the axial direction of the first wedge is parallel to the first pin shaft, and a strip-shaped limiting groove extending along the axial direction thereof is provided in the first wedge;

[0014] The contact line suspension string clamp also includes an arc-shaped connecting shaft and an anti-dropping clip, wherein:

[0015] The arc-shaped connecting shaft sequentially passes through the first contact line string suspension clamp, the first end of the strip-shaped limiting groove in the length direction, and the second contact line string suspension clamp;

[0016] The second end of the strip limiting groove in the length direction extends to the outside of the second axial end of the first wedge-shaped tightening groove, and the anti-slip clip is clamped in the part of the strip limiting groove located outside the second axial end of the first wedge-shaped tightening groove. The anti-slip clip is used to cooperate with the arc-shaped connecting shaft to limit the axial movement of the first wedge.

[0017] The utility model also provides a load-bearing cable hanging string clamp, comprising:

[0018] A first load-bearing cable suspension string clamp, a first end of which is provided with a first clamping hoop, and a fourth suspension ring limiting structure is also provided on the first load-bearing cable suspension string clamp;

[0019] A second load-bearing cable suspension clamp, a first end of which is provided with a second clamping hoop, and a fifth lifting ring limiting structure is also provided on the second load-bearing cable suspension clamp; the second load-bearing cable suspension clamp is riveted to the first load-bearing cable suspension clamp via a second pin shaft, so that a clamping hoop for clamping the load-bearing cable is formed between the first clamping hoop and the second clamping hoop, and a second wedge-shaped tensioning groove is formed between the second end of the first load-bearing cable suspension clamp and the second end of the second load-bearing cable suspension clamp;

[0020] The second U-shaped lifting ring has two arms of an open end respectively provided with a sixth lifting ring limiting structure, the open end of the second U-shaped lifting ring is embedded in the second wedge-shaped tightening groove, and the two sixth lifting ring limiting structures are respectively matched with the fourth lifting ring limiting structure and the fifth lifting ring limiting structure to realize the positioning of the second U-shaped lifting ring in the second wedge-shaped tightening groove; the second U-shaped lifting ring is used for the lifting string to pass through;

[0021] The second wedge is adapted to the profile of the second wedge-shaped tensioning groove, and the second wedge is inserted into the second wedge-shaped tensioning groove to apply tensioning force toward both sides of the second wedge-shaped tensioning groove, so that the wire clamping hoop clamps the load-bearing cable.

[0022] Optionally, the second wedge-shaped tensioning groove is a second trapezoidal tensioning groove with an isosceles trapezoidal cross-section, and the inclined wedge surfaces on both sides of the second trapezoidal tensioning groove are respectively located on the inner side of the second end of the first load-bearing cable suspension clamp and the inner side of the second end of the second load-bearing cable suspension clamp; a wedge positioning protrusion located at the large end end of the cross-section of the second trapezoidal tensioning groove is respectively provided on the inner side of the second end of the first load-bearing cable suspension clamp and the inner side of the second end of the second load-bearing cable suspension clamp.

[0023] Optionally, grooves for accommodating the side arms of the second U-shaped lifting ring are provided in the middle of the inclined wedge surfaces on both sides of the second trapezoidal tensioning groove, and the fourth lifting ring limiting structure and the fifth lifting ring limiting structure are both positioning holes opened at the grooves; the sixth lifting ring limiting structure is a positioning block adapted to the positioning hole, and the second U-shaped lifting ring is plug-fitted with the positioning hole through the positioning block and hung in the second trapezoidal tensioning groove.

[0024] Optionally, the axial direction of the second wedge-shaped tightening groove is parallel to the second pin shaft, and the cross-sectional area of ​​the second wedge-shaped tightening groove gradually decreases from the axial first end to the axial second end; the axial direction of the second wedge is parallel to the second pin shaft, and a strip-shaped limiting groove extending along the axial direction is provided in the second wedge;

[0025] The load-bearing cable suspender wire clamp also includes an arc-shaped connecting shaft and an anti-dropping clip, wherein:

[0026] The arc-shaped connecting shaft sequentially passes through the first load-bearing cable suspension string clamp, the first end of the strip-shaped limiting groove in the length direction, and the second load-bearing cable suspension string clamp;

[0027] The second end of the strip limiting groove in the length direction extends to the outside of the second axial end of the second wedge-shaped tightening groove, and the anti-slip clip is clamped in the part of the strip limiting groove located outside the second axial end of the second wedge-shaped tightening groove. The anti-slip clip is used to cooperate with the arc-shaped connecting shaft to limit the axial movement of the second wedge.

[0028] The utility model also proposes an integral suspension string, comprising a suspension string line, the contact line suspension string clamp described in any one of the above items, and the load-bearing cable suspension string clamp described in any one of the above items; after the two ends of the suspension string line pass through the first U-shaped suspension ring and the second U-shaped suspension ring respectively, they are respectively crimped and fixed by a crimping tube, and current-carrying rings are left at both ends of the suspension string line, and a heart-shaped protective ring is provided at the bend of any of the current-carrying rings.

[0029] Optionally, both the contact line suspension string clamp and the load-bearing cable suspension string clamp are provided with a suspension string end fixing structure.

[0030] Compared with the prior art, the utility model has achieved the following technical effects:

[0031] The contact wire suspension string clamp proposed by the utility model is provided with a first contact wire suspension string clamp plate, a second contact wire suspension string clamp plate, a first U-shaped suspension ring and a first wedge at the same time. The first contact wire suspension string clamp plate and the second contact wire suspension string clamp plate are riveted by a pin shaft. The clamping jaws formed between the first clamping pliers and the second clamping pliers clamp the contact wire under the action of the plug-in cooperation between the first wedge and the first wedge-shaped tensioning groove. In the entire contact wire suspension string clamp, no bolt connection is used, realizing the design form of the bolt-free anti-slipping type suspension string clamp, avoiding the failure of the contact wire suspension string clamp in the existing integral suspension string to cause the wire to be slack due to the nut being loosened on the bolt.

[0032] The load-bearing cable string clamp proposed by the utility model is provided with a first load-bearing cable string clamp, a second load-bearing cable string clamp, a second U-shaped lifting ring and a second wedge at the same time. The first load-bearing cable string clamp and the second load-bearing cable string clamp are riveted by a pin shaft. The clamping hoop formed between the first clamping hoop and the second clamping hoop clamps the load-bearing cable under the action of the plug-in cooperation of the second wedge and the second wedge-shaped tensioning groove. In the entire load-bearing cable string clamp, no bolt connection is used, realizing the design form of the bolt-free anti-slipping type string clamp, avoiding the failure of the load-bearing cable string clamp in the existing integral suspension string. The connection parts of the load-bearing cable string clamp are caused by the loosening of the nut on the bolt.

[0033] The integral suspension string proposed in the utility model, the contact line suspension string clamp and the load-bearing cable suspension string clamp are both bolt-free anti-dropping suspension string clamps, which are cleverly designed with a mechanical structure and assembled using a riveting process. When in use, a wedge tensioning method is used to clamp the contact line or hold the load-bearing cable. Not only are the assembly and construction convenient, safe and reliable, but the effects of tightening and preventing loosening are achieved, and accidents such as loosening and falling off of components during use can be fundamentally prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a schematic diagram of the overall structure of the integral suspension string disclosed in the embodiment of the utility model;

[0036] Figure 2 It is a side view of the integral suspension string disclosed in the embodiment of the utility model;

[0037] Figure 3 It is a schematic diagram of the overall structure of the contact line suspension string clamp disclosed in the embodiment of the utility model;

[0038] Figure 4 for Figure 3 Left side view of the center contact wire hanger wire clamp;

[0039] Figure 5 It is a schematic structural diagram of a second contact wire suspension string clamp in a contact wire suspension string clamp disclosed in an embodiment of the utility model;

[0040] Figure 6 for Figure 5 The right side view of the second contact line suspension cleat;

[0041] Figure 7 It is a structural schematic diagram of a first contact wire suspension string clamp in a contact wire suspension string clamp disclosed in an embodiment of the utility model;

[0042] Figure 8 for Figure 7 The right side view of the first contact line suspension cleat;

[0043] Fig. 9 It is a structural schematic diagram of the first wedge in the contact line suspension string clamp disclosed in the embodiment of the utility model;

[0044] Fig.10 for Fig. 9 a top view of the wedge shown;

[0045] Fig.11 It is a structural schematic diagram of the first U-shaped lifting ring in the contact wire hanging string clamp disclosed in the embodiment of the utility model;

[0046] Fig.12 for Fig.11 A side view of the first U-shaped lifting ring;

[0047] Fig.13 It is a structural schematic diagram of the first pin shaft in the contact line suspension string clamp disclosed in the embodiment of the utility model;

[0048] Fig.14 It is a structural schematic diagram of an anti-dropping clip in a contact line suspension string clamp disclosed in an embodiment of the utility model;

[0049] Fig.15 It is a schematic diagram of the overall structure of the load-bearing cable hanging string clamp disclosed in the embodiment of the utility model;

[0050] Fig.16 for Fig.15 Left side view of the center load-bearing cable hanger string clamp;

[0051] Fig.17 It is a structural schematic diagram of a second catenary cable suspension string clamp in a catenary cable suspension string clamp disclosed in an embodiment of the utility model;

[0052] Fig.18for Fig.17 The right side view of the second load-bearing cable suspension cleat;

[0053] Fig.19 It is a structural schematic diagram of a first catenary cable suspension string clamp in a catenary cable suspension string clamp disclosed in an embodiment of the utility model;

[0054] Fig. 20 for Fig.19 Right view of the first load-bearing cable suspension cleat.

[0055] Wherein, the accompanying drawings are marked as follows:

[0056] 100. Overall hanging string;

[0057] 1. Contact wire hanging string clamp; 11. First contact wire hanging string clamp; 12. Second contact wire hanging string clamp; 13. First U-shaped lifting ring; 14. First wedge; 15. First wire clamp; 16. Second wire clamp; 17. First pin shaft; 18. Wedge positioning protrusion; 19. Groove; 110. Positioning hole; 111. Positioning block; 112. Arc-shaped connecting shaft; 113. Anti-dropping clip; 114. Strip limiting groove; 115. Pin shaft hole; 116. Hanging string end fixing structure;

[0058] 2. Load-bearing cable string clamp; 21. First load-bearing cable string clamp; 21. Second load-bearing cable string clamp; 23. Second U-shaped lifting ring; 24. Second wedge; 25. First clamping hoop; 26. Second clamping hoop; 27. Second pin shaft;

[0059] 3. Suspension string;

[0060] 4. Press-fit pipe;

[0061] 5. Heart-shaped guard ring;

[0062] 6. Contact line;

[0063] 7. Load-bearing cable. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0065] One of the purposes of the utility model is to provide a novel contact wire suspension string clamp to solve the problem that the bolts and nuts in the existing suspension string clamp are easy to loosen, which not only accelerates the wear of parts, but also easily causes the failure of derailment, thereby affecting the operating reliability of the electrified railway contact network system.

[0066] Another object of the utility model is to provide a novel load-bearing cable hanger wire clamp to solve the problem that the bolts and nuts in the existing hanger wire clamp are easy to loosen, which not only accelerates the wear of parts, but also easily causes the failure of derailment, thereby affecting the operating reliability of the electrified railway contact network system.

[0067] Another object of the utility model is to provide an integral suspension string including the contact wire suspension string clamp and the load-bearing cable suspension string clamp.

[0068] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0069] Embodiment 1

[0070] like Figure 1 to Figure 14As shown, the present embodiment provides a contact line string clamp 1, which includes a first contact line string clamp plate 11, a second contact line string clamp plate 12, a first U-shaped suspension ring 13 and a first wedge 14. A first clamp 15 is provided at the first end of the first contact line string clamp plate 11, and a first suspension ring limiting structure is also provided on the first contact line string clamp plate 11; a second clamp 16 is provided at the first end of the second contact line string clamp plate 12, and a second suspension ring limiting structure is also provided on the second contact line string clamp plate 12; the second contact line string clamp plate 12 is arranged opposite to the first contact line string clamp plate 11, and both are provided with a pin shaft hole 115. After the pin shaft holes 115 of the second contact line string clamp plate 12 and the first contact line string clamp plate 11 are aligned, the first pin shaft 17 penetrates the pin shaft hole 115, thereby realizing the riveting of the second contact line string clamp plate 12 and the first contact line string clamp plate 11, so that the first clamp 15 and the second clamp 16 are connected. A wire clamping jaw for clamping the contact wire 6 is formed therebetween, and a first wedge-shaped tightening groove is formed between the second end of the first contact wire string clamp 11 (the end away from the first wire clamp 15) and the second end of the second contact wire string clamp 12 (i.e., the end away from the second wire clamp 16); the two side arms of the open end of the above-mentioned first U-shaped lifting ring 13 are respectively provided with a third lifting ring limiting structure, the open end of the first U-shaped lifting ring 13 is embedded in the first wedge-shaped tightening groove, and the two third lifting ring limiting structures are respectively limited and matched with the first lifting ring limiting structure and the second lifting ring limiting structure to realize the positioning of the first U-shaped lifting ring 13 in the first wedge-shaped tightening groove; the first U-shaped lifting ring 13 is used for the string 3 to pass through; the first wedge 14 is adapted to the contour of the above-mentioned first wedge-shaped tightening groove, and the first wedge 14 is inserted into the first wedge-shaped tightening groove, and a tightening force toward both sides can be applied to the first wedge-shaped tightening groove, so that the wire clamping jaws clamp the contact wire 6. The above-mentioned contact wire string clamp 1 is provided with a first contact wire string clamp plate 11, a second contact wire string clamp plate 12, a first U-shaped suspension ring 13 and a first wedge 14. The first contact wire string clamp plate 11 and the second contact wire string clamp plate 12 are riveted by a pin shaft. The clamping jaws formed between the first clamp 15 and the second clamp 16 clamp the contact wire under the action of the plug-in cooperation between the first wedge 14 and the first wedge-shaped tensioning groove. In the entire contact wire string clamp 1, no bolt connection is used, realizing the design form of a bolt-free anti-slip type string clamp, avoiding the failure of the contact wire string clamp in the existing integral suspension string to cause the wire to be slack due to the loosening of the nut on the bolt.

[0071] In this embodiment, the first wire clamp 15 and the second wire clamp 16 have the same structure and are symmetrically arranged.

[0072] In this embodiment, the aforementioned first wedge-shaped tensioning groove is preferably a first trapezoidal tensioning groove with an isosceles trapezoidal cross section. Correspondingly, the cross section of the first wedge 14 is also an isosceles trapezoid and is adapted to the cross section of the first trapezoidal tensioning groove. The large end of the cross section of the first trapezoidal tensioning groove faces the clamping jaws, and the inclined wedge surfaces on both sides of the first trapezoidal tensioning groove are respectively located on the inner side of the second end of the first contact line string cleat 11 and the inner side of the second end of the second contact line string cleat 12; the inner side of the second end of the first contact line string cleat 11 and the inner side of the second end of the second contact line string cleat 12 are respectively provided with a wedge positioning protrusion 18 located at the large end of the cross section of the first trapezoidal tensioning groove. The inner side of the second end of the first contact line string suspension clamp 11, the wedge positioning protrusion 18 on the first contact line string suspension clamp 11, the wedge positioning protrusion 18 on the second contact line string suspension clamp 12 and the inner side of the second end of the second contact line string suspension clamp 12 together form the first trapezoidal tensioning groove with an isosceles trapezoidal cross section. The contact line suspension wire clamp 1 generally clamps the contact line 6 with the wire clamping jaws facing downward, and the large end of the cross-section of the first trapezoidal tightening groove is facing the wire clamping jaws, that is, the large end of the cross-section of the first trapezoidal tightening groove is arranged downward, and correspondingly, the small end of the cross-section of the first trapezoidal tightening groove is arranged upward, and is generally open. After the first wedge 14 is plugged into the first trapezoidal tightening groove, the bottom of the first wedge 14 is supported and limited by the wedge positioning protrusion 18, and due to the cooperation of the inclined wedge surface between the first wedge 14 and the first trapezoidal tightening groove, the first wedge 14 can be effectively prevented from slipping from the small end of the first trapezoidal tightening groove, that is, the top opening.

[0073] Furthermore, in the present embodiment, grooves 19 for accommodating the side arms of the first U-shaped lifting ring 13 are provided in the middle of the inclined wedge surfaces on both sides of the first trapezoidal tightening groove, and the first lifting ring limiting structure and the second lifting ring limiting structure are preferably provided with positioning holes 110 at the grooves 19, and the positioning holes 110 are generally arranged through the inclined wedge surfaces on both sides of the first trapezoidal tightening groove; the third lifting ring limiting structure is a positioning block 111 adapted to the positioning hole 110, and the first U-shaped lifting ring 13 is plugged into and matched with the positioning hole 110 through the positioning block 111, and is hung in the first trapezoidal tightening groove. After the first U-shaped lifting ring 13 is connected to the first trapezoidal tensioning groove, the two side arms of the first U-shaped lifting ring 13 are embedded in the groove 19. After the first wedge 14 is inserted into the first trapezoidal tensioning groove, the two inclined wedge surfaces of the first wedge 14 cooperate with the two side inclined wedge surfaces of the first trapezoidal tensioning groove. At the same time, the two side arms of the first U-shaped lifting ring 13 are limited in the groove 19 by the two inclined wedge surfaces of the first wedge 14, which can prevent the third lifting ring limiting structure from being separated from the first lifting ring limiting structure and the second lifting ring limiting structure, thereby reinforcing the first U-shaped lifting ring 13. As a further preferred scheme, the side arms of the first U-shaped lifting ring 13 are also preferably in contact with the two inclined wedge surfaces of the first wedge 14. As a result, the side arms of the first U-shaped lifting ring 13 can be pressed tightly in the groove 19 by the two inclined wedge surfaces of the first wedge 14, reducing the movable clearance of the first U-shaped lifting ring 13 relative to the first wedge 14, which not only improves the connection stability of the first U-shaped lifting ring 13 in the first trapezoidal tightening groove, but also avoids collision and wear between the first U-shaped lifting ring 13 and the first wedge 14 and the groove 19, which can further extend the service life of the first U-shaped lifting ring 13, the first wedge 14 and the first trapezoidal tightening groove.

[0074] Further, as a preferred solution, the positioning blocks 111 at the ends of the two side arms of the first U-shaped lifting ring 13 are preferably rectangular protrusions, and the entire first U-shaped lifting ring 13 is in an "Ω" shape, such as Fig.12 Correspondingly, the positioning holes 110 at the grooves 19 on both sides of the first trapezoidal tightening channel are preferably rectangular positioning holes.

[0075] In this embodiment, the axial direction of the first wedge-shaped tightening groove is parallel to the axial direction of the first pin 17. In addition to having inclined wedge surfaces on both sides, in order to further enhance the locking effect between the first wedge 14 and the first wedge-shaped tightening groove, the first wedge-shaped tightening groove is further arranged to be reduced in diameter along its axial direction, that is, the cross-sectional area of ​​the first wedge-shaped tightening groove gradually decreases from its axial first end to its axial second end. Correspondingly, the axial direction of the first wedge 14 is parallel to the first pin 17, and the cross-sectional area of ​​the first wedge 14 also gradually decreases from its own axial first end to its axial second end. It should be noted that the axial first end of the first wedge 14 and the axial first end of the first wedge-shaped tightening groove are located at the same end, and the axial second end of the first wedge 14 and the axial second end of the first wedge-shaped tightening groove are also located at the same end.

[0076] Furthermore, in order to further enhance the locking effect between the first wedge-shaped tensioning groove and the first wedge 14 and avoid axial slippage between the first wedge 14 and the first wedge-shaped tensioning groove during normal use, a strip limiting groove 114 extending axially thereof may be provided in the first wedge 14. The strip limiting groove 114 is located in the first wedge 14, that is, the two ends of the strip limiting groove 114 in the length direction do not pass through the two axial ends of the first wedge 14. Based on this, the contact line string clamp 1 is also provided with an arc-shaped connecting shaft 112 and an anti-dropping clip 113, wherein: the arc-shaped connecting shaft 112 sequentially passes through the first contact line string clamp 11, the first end of the length direction of the strip limiting groove 114 and the second contact line string clamp 12, and the through holes on the second contact line string clamp 12 and the first contact line string clamp 11 for the arc-shaped connecting shaft 112 to pass through are arc-shaped holes adapted to the shape of the arc-shaped connecting shaft 112, and the arc-shaped connecting shaft 112 is used to connect the first contact line string clamp 11, the strip limiting groove 114 and the second contact line string clamp 12. The arc-shaped connecting shaft 112 utilizes its own curvature and is not easy to fall out of the first contact line string clamp 11, the strip limiting groove 114 and the second contact line string clamp 12. Generally, the first end of the length direction of the strip limiting groove 114 is its At one end of the axial large head end of the first wedge 14, when the first wedge 14 slips out of the first wedge-shaped tensioning groove, it starts to slip out from the large head end of the first wedge 14, and accordingly, the strip limiting groove 114 slides along the arc-shaped connecting shaft 112. Since the arc-shaped connecting shaft 112 is bent and plugged with the first contact line string clamp 11 and the second contact line string clamp 12, the arc-shaped connecting shaft 112 basically remains stationary. Even if the first wedge 14 slips out of the first wedge-shaped tensioning groove as a whole, due to the hanging and limiting effect of the arc-shaped connecting shaft 112 on the strip limiting groove 114, the first wedge 14 will not fall off from the entire contact line string clamp 1 until the arc-shaped connecting shaft 112 is pulled out from the first contact line string clamp 11 and the second contact line string clamp 12, and then the first wedge 14 can be completely removed from the entire contact line string clamp 1. The arrangement of the double limit safety structure of the arc-shaped connecting shaft and the anti-dropping clip makes the contact line suspension string clamp 1 have excellent anti-loosening performance (bolt-free structure) and good anti-dropping function, and the reliability is greatly improved.

[0077] In this embodiment, the second end of the strip limit groove 114 in the length direction extends to the outside of the second axial end of the first wedge-shaped tensioning groove, and the anti-slip clip 113 is clamped in the portion of the strip limit groove 114 located outside the second axial end of the first wedge-shaped tensioning groove. The anti-slip clip 113 cooperates with the arc-shaped connecting shaft 112 to limit and position the two ends of the strip limit groove 114 respectively. After the first wedge 14 is inserted into the first wedge-shaped tensioning groove, the first wedge 14 can be prevented from axially moving relative to the first wedge-shaped tensioning groove, thereby improving the structural stability and operational reliability of the entire contact line suspension string clamp 1. Fig.14 As shown, the anti-slip clip 113 is U-shaped as a whole, and the open end is in a closed state. A limiting convex card is also provided on the inner side of the open end of one side arm of the anti-slip clip 113. One side arm of the anti-slip clip 113 is inserted into the strip limiting groove 114, and the other side arm is located outside the first wedge 14, that is, the anti-slip clip 113 is clamped on a side wall of the strip limiting groove 114. After the anti-slip clip 113 and the strip limiting groove 114 are clamped in place, the limiting convex card on the anti-slip clip 113 is limitedly matched with the side wall of the strip limiting groove 114. In the absence of external force, the anti-slip clip 113 will not easily fall out of the strip limiting groove 114 due to the concave-convex cooperation between the limiting convex card and the strip limiting groove 114, and the limiting effect is good.

[0078] When in use, the second contact line string suspension clamp 12 and the first contact line string suspension clamp 11 are riveted together by a first pin shaft, one end forms a wire clamping jaw, and the other end forms a wedge-shaped tightening groove provided with a limit point (i.e., a wedge positioning protrusion 18), and the first U-shaped lifting ring 13 is hung in the reserved positioning holes of the two clamps as a connecting part for the string suspension line; when in use, the wire clamping jaw is clamped in the groove of the contact line 3, and the wire clamping jaw is tightened by inserting the first wedge into the wedge-shaped tightening groove, so that the wire clamping jaw is basically no longer loose.

[0079] The contact wire suspension string clamp 1 proposed in this technical solution is essentially a bolt-free anti-loosening type suspension string clamp, which adopts a clever mechanical structure design and a riveting process for assembly. When in use, the contact wire is clamped by a wedge tensioning method, and an anti-loosening clamp and an arc-shaped connecting shaft are provided to prevent the first wedge from retreating and loosening. It is not only convenient to assemble and construct, safe and reliable, but also achieves the effect of tightening and preventing loosening. The contact wire suspension string clamp 1 has the following specific beneficial effects:

[0080] (1) The string clamp uses a wedge to tighten the contact wire 3. The first U-shaped ring 13 is hooked in the reserved positioning holes of the two clamping plates (without bolt fastening). The wedge cannot be withdrawn after tightening. The overall design is ingenious, the structure is compact, the force is balanced, the construction is simple, and the operation is safe. Equipped with special construction tools, it can also significantly improve work efficiency. A single wire clamp can be installed or removed within 2 to 3 seconds.

[0081] (2) The two clamping plates are connected by pin riveting (without bolt fastening), the string clamp is tightened by a wedge (without bolt fastening), and the first U-shaped lifting ring 13 is hooked in the reserved positioning holes of the two clamping plates (without bolt fastening). The wedge cannot be withdrawn after being tightened; the entire string clamp is not fastened with bolts, which avoids the disadvantages of existing products (the nuts are very easy to loosen), and fundamentally eliminates the occurrence of accidents such as loosening and falling of parts during use. At the same time, the current-carrying function of the existing products is retained, and many advantages of the new products are added, such as no bolts, anti-slip, high strength, high toughness, light weight, long life, and simple installation and debugging.

[0082] (3) While using the wedge tensioning method, a double safety limiter of an arc-shaped connecting shaft and an anti-dropping clip is provided to ensure that the wire clamp holds the contact wire 3 and basically does not fall off, with a stable structure and reliable use. In addition, the arc-shaped connecting shaft is used to hang the wedge between the two clamping plates to form a whole to avoid loss, and it will not fall to the ground during construction.

[0083] (4) All parts of the contact wire suspension wire clamp 1 are preferably manufactured by forging technology, which is not only simple in process, but also reduces the weight by about 3 / 5 compared with the existing products (the existing product is 187g, while this product is 74g), and the economic benefits are significantly improved. At the same time, the quality of the forged workpiece is stable, which can eliminate the hard points of the contact suspension, making the locomotive pass more smoothly and safely.

[0084] (5) The electrical connection is directly placed on the clamping plate (without bolt fastening), which fundamentally eliminates the occurrence of adverse phenomena such as current disconnection and sparking and excessive temperature rise.

[0085] (6) The utility model optimizes the processing technology, reduces the manufacturing cost, and improves the market competitiveness and economic benefits.

[0086] Embodiment 2

[0087] like Figure 1 , Figure 2 , Figures 15 to 20As shown, this embodiment provides a load-bearing cable string clamp 2, which includes a first load-bearing cable string clamp plate 21, a second load-bearing cable string clamp plate 22, a second U-shaped lifting ring 23 and a second wedge 24: a first end of the first load-bearing cable string clamp plate 21 is provided with a first clamping hoop 25, and the first load-bearing cable string clamp plate 21 is also provided with a fourth lifting ring limiting structure; a first end of the second load-bearing cable string clamp plate 22 is provided with a second clamping hoop 26, and the second load-bearing cable string clamp plate 22 is provided with a fourth lifting ring limiting structure. A fifth lifting ring limiting structure is also provided; the second load-bearing cable string clamp 22 is arranged opposite to the first load-bearing cable string clamp 21, and both are provided with a pin shaft hole 115. After the pin shaft holes 115 of the second load-bearing cable string clamp 22 and the first load-bearing cable string clamp 21 are aligned, the second pin shaft 27 penetrates the pin shaft hole 115, thereby realizing the riveting of the second load-bearing cable string clamp 22 and the first load-bearing cable string clamp 21, so that the first clamp hoop 25 and the second clamp hoop 26 are connected. A wire clamping hoop for clamping the load-bearing cable 7 is formed therebetween, and a second wedge-shaped tightening groove is formed between the second end of the first load-bearing cable string clamping plate 21 (the end away from the first wire clamping hoop 25) and the second end of the second load-bearing cable string clamping plate 22 (i.e., the end away from the second wire clamping hoop 26); the two side arms of the open end of the above-mentioned second U-shaped lifting ring 23 are respectively provided with a sixth lifting ring limiting structure, the open end of the second U-shaped lifting ring 23 is embedded in the second wedge-shaped tightening groove, and the two sixth lifting ring limiting structures are respectively limited and matched with the fourth lifting ring limiting structure and the fifth lifting ring limiting structure to realize the positioning of the second U-shaped lifting ring 23 in the second wedge-shaped tightening groove; the second U-shaped lifting ring 23 is used for the string 3 to pass through; the second wedge 24 is adapted to the contour of the above-mentioned second wedge-shaped tightening groove, and the second wedge 24 is inserted into the second wedge-shaped tightening groove, and a tightening force toward both sides can be applied to the second wedge-shaped tightening groove, so that the wire clamping hoop clamps the load-bearing cable 7. The above-mentioned catenary cable string clamp 2 is provided with a first catenary cable string clamp plate 21, a second catenary cable string clamp plate 22, a second U-shaped suspension ring 23 and a second wedge 24. The first catenary cable string clamp plate 21 and the second catenary cable string clamp plate 22 are riveted by a pin shaft. The clamping hoop formed between the first clamping hoop 25 and the second clamping hoop 26 clamps the catenary cable 7 under the action of the plug-in cooperation between the second wedge 24 and the second wedge-shaped tensioning groove. In the entire catenary cable string clamp 2, no bolt connection is used, realizing the design form of the bolt-free anti-slip type string clamp, avoiding the occurrence of the failure of the line being derailed due to the loosening of the nut on the bolt between the connecting parts of the catenary cable string clamp in the existing integral suspension string.

[0088] In this embodiment, the first wire clamp 25 and the second wire clamp 26 have the same structure and are symmetrically arranged.

[0089] In this embodiment, the aforementioned second wedge-shaped tensioning channel is preferably a second trapezoidal tensioning channel with an isosceles trapezoidal cross section. Correspondingly, the cross section of the second wedge 24 is also an isosceles trapezoidal cross section, and is adapted to the cross section of the second trapezoidal tensioning channel. Different from the working mode of the contact line suspension string clamp 1, the wire clamping hoop in the load-bearing cable suspension string clamp 2 generally clamps the load-bearing cable 7 upward, so the cross section of the second trapezoidal tensioning channel can be oriented toward the wire clamping hoop or away from the wire clamping hoop, wherein:

[0090] (i) When the large end of the cross section of the second trapezoidal tensioning channel is away from the clamping wire clamp, the inclined wedge surfaces on both sides of the second trapezoidal tensioning channel are respectively located on the inner side of the second end of the first load-bearing cable string clamp 21 and the inner side of the second end of the second load-bearing cable string clamp 22, and a wedge positioning protrusion 18 located at the large end of the cross section of the second trapezoidal tensioning channel is respectively provided on the inner side of the second end of the first load-bearing cable string clamp 21 and the inner side of the second end of the second load-bearing cable string clamp 22. The inner side of the second end of the first load-bearing cable string clamp 21, the wedge positioning protrusion 18 on the first load-bearing cable string clamp 21, the wedge positioning protrusion 18 on the second load-bearing cable string clamp 22 and the inner side of the second end of the second load-bearing cable string clamp 22 together enclose the second trapezoidal tensioning channel with an isosceles trapezoidal cross section. The large end of the cross section of the second trapezoidal tightening groove is turned away from the wire clamp, that is, the large end of the cross section of the second trapezoidal tightening groove is arranged downward, and correspondingly, the small end of the cross section of the second trapezoidal tightening groove is arranged upward and generally open. After the second wedge 24 is plugged into the second trapezoidal tightening groove, the bottom of the second wedge 24 is supported and limited by the wedge positioning protrusion 18, which can effectively prevent the second wedge 24 from slipping off from the large end of the cross section of the second trapezoidal tightening groove.

[0091] (II) When the large end of the cross section of the second trapezoidal tensioning channel faces the wire clamp, the inclined wedge surfaces on both sides of the second trapezoidal tensioning channel are respectively located on the inner side of the second end of the first load-bearing cable string clamp 21 and the inner side of the second end of the second load-bearing cable string clamp 22, and a wedge positioning protrusion 18 located on the large end of the cross section of the second trapezoidal tensioning channel is respectively provided on the inner side of the second end of the first load-bearing cable string clamp 21 and the inner side of the second end of the second load-bearing cable string clamp 22. The inner side of the second end of the first load-bearing cable string clamp 21, the wedge positioning protrusion 18 on the first load-bearing cable string clamp 21, the wedge positioning protrusion 18 on the second load-bearing cable string clamp 22 and the inner side of the second end of the second load-bearing cable string clamp 22 together enclose the second trapezoidal tensioning channel with an isosceles trapezoidal cross section. The large end of the cross section of the second trapezoidal tightening groove is directed toward the wire clamp, that is, the large end of the cross section of the second trapezoidal tightening groove is arranged upward, and correspondingly, the small end of the cross section of the second trapezoidal tightening groove is arranged downward and is open. After the second wedge 24 is plugged into the second trapezoidal tightening groove, the second wedge 24 can be prevented from slipping off from the small end of the cross section of the second trapezoidal tightening groove due to the cooperation of the inclined wedge surface between the second wedge 24 and the second trapezoidal tightening groove.

[0092] As a preferred solution of this embodiment, the large end of the cross section of the second trapezoidal tensioning groove is preferably arranged away from the wire clamping hoop, that is, in normal working state, the large end of the cross section of the second trapezoidal tensioning groove faces downward.

[0093] Furthermore, in the present embodiment, grooves 19 for accommodating the side arms of the second U-shaped lifting ring 23 are provided in the middle of the inclined wedge surfaces on both sides of the second trapezoidal tightening groove, and the fourth lifting ring limiting structure and the fifth lifting ring limiting structure are preferably positioning holes 110 opened at the grooves 19, and the positioning holes 110 are generally arranged through the inclined wedge surfaces on both sides of the second trapezoidal tightening groove; the sixth lifting ring limiting structure is a positioning block 111 adapted to the positioning hole 110, and the second U-shaped lifting ring 23 is plugged into and matched with the positioning hole 110 through the positioning block 111, and is hung in the second trapezoidal tightening groove. After the second U-shaped lifting ring 23 is connected to the second trapezoidal tensioning groove, the two side arms of the second U-shaped lifting ring 23 are embedded in the groove 19. After the second wedge 24 is inserted into the second trapezoidal tensioning groove, the two oblique wedge surfaces of the second wedge 24 cooperate with the two side oblique wedge surfaces of the second trapezoidal tensioning groove. At the same time, the two side arms of the second U-shaped lifting ring 23 are limited in the groove 19 by the two oblique wedge surfaces of the second wedge 24, which can prevent the sixth lifting ring limiting structure from being separated from the fourth lifting ring limiting structure and the fifth lifting ring limiting structure, thereby reinforcing the second U-shaped lifting ring 23. As a further preferred scheme, the side arms of the second U-shaped lifting ring 23 are also preferably in contact with the two inclined wedge surfaces of the second wedge 24. As a result, the side arms of the second U-shaped lifting ring 23 can be pressed tightly in the groove 19 by the two inclined wedge surfaces of the second wedge 24, reducing the movable clearance of the second U-shaped lifting ring 23 relative to the second wedge 24, which not only improves the connection stability of the second U-shaped lifting ring 23 in the second trapezoidal tightening groove, but also avoids collision and wear between the second U-shaped lifting ring 23 and the second wedge 24 and the groove 19, which can further extend the service life of the second U-shaped lifting ring 23, the second wedge 24 and the second trapezoidal tightening groove.

[0094] Further, as a preferred solution, the positioning blocks 111 at the ends of the two side arms of the second U-shaped ring 23 are preferably rectangular protrusions, and the entire second U-shaped ring 23 is in an "Ω" shape. The structure of the second U-shaped ring 23 is exactly the same as that of the first U-shaped ring 13, such as Fig.12 Correspondingly, the positioning holes 110 at the grooves 19 on both sides of the second trapezoidal tightening channel are preferably rectangular positioning holes.

[0095] In this embodiment, the axial direction of the second wedge-shaped tightening groove is parallel to the axial direction of the second pin 27. In addition to having inclined wedge surfaces on both sides, in order to further enhance the locking effect between the second wedge 24 and the second wedge-shaped tightening groove, the second wedge-shaped tightening groove is further arranged to be reduced in diameter along its axial direction, that is, the cross-sectional area of ​​the second wedge-shaped tightening groove gradually decreases from its axial first end to its axial second end. Correspondingly, the axial direction of the second wedge 24 is parallel to the second pin 27, and the cross-sectional area of ​​the second wedge 24 also gradually decreases from its own axial first end to its axial second end. It should be noted that the axial first end of the second wedge 24 and the axial first end of the second wedge-shaped tightening groove are located at the same end, and the axial second end of the second wedge 24 and the axial second end of the second wedge-shaped tightening groove are also located at the same end.

[0096] In this embodiment, the second wedge 24 has the same structure as the first wedge 14 in the first embodiment. In order to further enhance the locking effect between the second wedge-shaped tightening groove and the second wedge 24 and prevent the second wedge 24 from axially slipping from the second wedge-shaped tightening groove during normal use, a strip-shaped limiting groove 114 extending along the axial direction of the second wedge 24 may be provided in the second wedge 24. The strip-shaped limiting groove 114 is located in the second wedge 24, that is, the two ends of the strip-shaped limiting groove 114 in the length direction do not pass through the two ends of the axial direction of the second wedge 24. Based on this, the load-bearing cable string clamp 2 is also provided with an arc-shaped connecting shaft 112 and an anti-slip clip 113, wherein: the arc-shaped connecting shaft 112 sequentially passes through the first load-bearing cable string clamp 21, the first end of the length direction of the strip limiting groove 114 and the second load-bearing cable string clamp 22, and the through holes on the second load-bearing cable string clamp 22 and the first load-bearing cable string clamp 21 for the arc-shaped connecting shaft 112 to pass through are arc-shaped holes adapted to the shape of the arc-shaped connecting shaft 112, and the arc-shaped connecting shaft 112 is used to connect the first load-bearing cable string clamp 21, the strip limiting groove 114 and the second load-bearing cable string clamp 22. The arc-shaped connecting shaft 112 utilizes its own curvature and is not easy to slip out of the first load-bearing cable string clamp 21, the strip limiting groove 114 and the second load-bearing cable string clamp 22. Generally, the first end of the length direction of the strip limiting groove 114 is its At one end of the axial large head end of the second wedge 24, when the second wedge 24 slips out of the second wedge-shaped tensioning groove, it starts to slip out from the large head end of the second wedge 24, and accordingly, the strip limiting groove 114 slides along the arc connecting shaft 112. Since the arc connecting shaft 112 is bent and plugged into the first load-bearing cable string clamp 21 and the second load-bearing cable string clamp 22, the arc connecting shaft 112 basically remains stationary. Even if the second wedge 24 slips out of the second wedge-shaped tensioning groove as a whole, due to the hanging and limiting effect of the arc connecting shaft 112 on the strip limiting groove 114, the second wedge 24 will not fall off from the entire load-bearing cable string clamp 2 until the arc connecting shaft 112 is pulled out from the first load-bearing cable string clamp 21 and the second load-bearing cable string clamp 22, and then the second wedge 24 can be completely removed from the entire load-bearing cable string clamp 2.

[0097] In this embodiment, the second end of the strip limit groove 114 in the length direction extends to the outside of the second axial end of the second wedge-shaped tensioning groove, and the anti-slip clip 113 is clamped in the portion of the strip limit groove 114 located outside the second axial end of the second wedge-shaped tensioning groove. The anti-slip clip 113 cooperates with the arc-shaped connecting shaft 112 to limit and position the two ends of the strip limit groove 114 respectively. After the second wedge 24 is inserted into the second wedge-shaped tensioning groove, the second wedge 24 can be prevented from axially moving relative to the second wedge-shaped tensioning groove, thereby improving the structural stability and operational reliability of the entire load-bearing cable suspension string clamp 2. Fig.14As shown, the anti-slip clip 113 is U-shaped as a whole, and the open end is in a closed state. A limiting convex card is also provided on the inner side of the open end of one side arm of the anti-slip clip 113. One side arm of the anti-slip clip 113 is inserted into the strip limiting groove 114, and the other side arm is located outside the second wedge 24, that is, the anti-slip clip 113 is clamped on a side wall of the strip limiting groove 114. After the anti-slip clip 113 and the strip limiting groove 114 are clamped in place, the limiting convex card on the anti-slip clip 113 is limitedly matched with the side wall of the strip limiting groove 114. In the absence of external force, the anti-slip clip 113 will not easily fall out of the strip limiting groove 114 due to the concave-convex cooperation between the limiting convex card and the strip limiting groove 114, and the limiting effect is good.

[0098] When in use, the first load-bearing cable suspension string clamp 21 and the second load-bearing cable suspension string clamp 22 are riveted together by the second pin shaft 27, one end forms a wire clamping hoop, and the other end forms a wedge-shaped tightening groove provided with a limit point (i.e., the wedge positioning protrusion 18), and the second U-shaped ring 23 is hung in the reserved positioning holes of the two clamps as a connecting part of the suspension string; when in use, the wire clamping hoop is clamped to the outside of the load-bearing cable 7, and the wire clamping hoop is tightened by inserting the second wedge into the wedge-shaped tightening groove, so that the wire clamping hoop is basically no longer loose.

[0099] The load-bearing cable string clamp 2 proposed in this technical solution is essentially a bolt-free anti-loosening type string clamp. It adopts a clever mechanical structure design and a riveting process for assembly. When in use, the load-bearing cable is clamped by a wedge tensioning method, and an anti-loosening clip and an arc-shaped connecting shaft are provided to prevent the second wedge from retreating and loosening. It is not only convenient to assemble and construct, safe and reliable, but also achieves the effect of tightening and preventing loosening. The load-bearing cable string clamp 2 has the following beneficial effects:

[0100] (1) The string clamp uses a wedge to tighten the load-bearing cable 7. The second U-shaped lifting ring 23 is hooked in the reserved positioning holes of the two clamping plates (without bolt fastening). The wedge cannot be withdrawn after tightening. The overall design is ingenious, the structure is compact, the force is balanced, the construction is simple, and the operation is safe. Equipped with special construction tools, it can also significantly improve work efficiency. A single wire clamp can be installed or removed within 2 to 3 seconds.

[0101] (2) The two clamping plates are connected by pin riveting (without bolt fastening), the string clamp is tightened by a wedge (without bolt fastening), and the second U-shaped lifting ring 23 is hooked in the reserved positioning holes of the two clamping plates (without bolt fastening). The wedge cannot be withdrawn after being tightened; the entire string clamp is not fastened by bolts, which avoids the disadvantages of existing products (the nuts are very easy to loosen), and fundamentally eliminates the occurrence of accidents such as loosening and falling of parts during use. At the same time, the current-carrying function of the existing products is retained, and many advantages of the new product are added, such as no bolts, anti-slip, high strength, high toughness, light weight, long life, and simple installation and debugging.

[0102] (3) While the wedge tensioning method is adopted, the arc-shaped connecting shaft and the anti-dropping clip are provided with double safety limiters to ensure that the wire clamp holds the load-bearing cable 7 and basically does not fall off, the structure is stable, and the use is reliable. In addition, the arc-shaped connecting shaft is used to hang the wedge between the two clamping plates to form a whole to avoid loss, and it will not fall to the ground during construction.

[0103] (4) All parts of the load-bearing cable string clamp 2 are preferably manufactured by forging technology, which is not only simple in process, but also reduces the weight by about 3 / 5 compared with the existing products (the existing product is 187g, while this product is 74g), and the economic benefits are significantly improved. At the same time, the quality of the forged workpiece is stable, which can eliminate the hard points of contact with the suspension, making the locomotive pass more smoothly and safely.

[0104] (5) The electrical connection is directly placed on the clamping plate (without bolt fastening), which fundamentally eliminates the occurrence of adverse phenomena such as current disconnection and sparking and excessive temperature rise.

[0105] (6) The utility model optimizes the processing technology, reduces the manufacturing cost, and improves the market competitiveness and economic benefits.

[0106] Embodiment 3

[0107] The present embodiment proposes an integral suspension string 100, comprising a suspension string line 3, a contact line suspension string line clamp 1 disclosed in the first embodiment, and a load-bearing cable suspension string line clamp 2 disclosed in the second embodiment; after the two ends of the suspension string line 3 pass through the first U-shaped suspension ring 13 and the second U-shaped suspension ring 23 respectively, they are respectively crimped and fixed by a crimping tube 4, and current-carrying rings are left at both ends of the suspension string line 3, and a heart-shaped protective ring 5 is provided at any bend of the current-carrying ring to protect the suspension string line 3.

[0108] In this embodiment, both the contact wire suspension wire clamp 1 and the load-bearing wire suspension wire clamp 2 are provided with a suspension wire end fixing structure 116. The suspension wire end fixing structure 116 is tubular and is used to fix the end position of the suspension wire 3.

[0109] When the above-mentioned integral suspension string 100 is in use, the first load-bearing cable suspension string clamp 21 and the second load-bearing cable suspension string clamp 22 are riveted together by the second pin shaft 27, and a wire clamping hoop is formed at the top end, and a wedge-shaped tightening groove with a limit point (i.e., a wedge positioning protrusion 18) is formed at the bottom end. The second U-shaped lifting ring 23 is hung in the reserved positioning holes of the two clamps as a connecting component at the top end of the suspension string 3; when in use, the wire clamping hoop is clamped to the outside of the load-bearing cable 7, and the wire clamping hoop is tightened by inserting the second wedge into the wedge-shaped tightening groove, so that the wire clamping hoop is basically no longer loose. Afterwards, a contact line suspension string clamp 1 is arranged below the load-bearing cable suspension string clamp 2. Specifically, the second contact line suspension string clamp plate 12 and the first contact line suspension string clamp plate 11 are riveted together by using a first pin shaft, a clamping jaw is formed at the bottom, and a wedge-shaped tightening groove with a limit point (i.e., a wedge positioning protrusion 18) is formed at the top. The first U-shaped lifting ring 13 is hung in the reserved positioning holes of the two clamps as a connecting component at the bottom end of the same suspension string 3. When in use, the clamping jaw is stuck in the groove of the contact line 3, and the clamping jaw is tightened by inserting the first wedge into the wedge-shaped tightening groove, so that the clamping jaw is basically no longer loose.

[0110] The integral suspension string 100 proposed in the technical solution, wherein the contact line suspension string clamp 1 and the load-bearing cable suspension string clamp 2 are both bolt-free anti-loosening suspension string clamps, which are assembled by a clever mechanical structure design and a riveting process. When in use, a wedge is used to tighten the contact line or to hold the load-bearing cable 7, and an anti-loosening clip and an arc-shaped connecting shaft are provided to prevent the wedge from retreating and loosening. The assembly and construction are not only convenient, safe and reliable, but also the tightening and anti-loosening effects are achieved, and accidents such as loosening and falling off of components during use can be fundamentally prevented.

[0111] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A contact line suspension wire clamp, characterized in that: include: A first contact line string suspension clamp (11), a first end of which is provided with a first wire clamp (15), and a first suspension ring limiting structure is also provided on the first contact line string suspension clamp (11); A second contact line string clamp (12), a first end of which is provided with a second wire clamp (16), and a second suspension ring limiting structure is also provided on the second contact line string clamp (12); the second contact line string clamp (12) is riveted to the first contact line string clamp (11) via a first pin shaft (17), so that a wire clamp opening for clamping the contact line (6) is formed between the first wire clamp (15) and the second wire clamp (16), and a first wedge-shaped tensioning groove is formed between the second end of the first contact line string clamp (11) and the second end of the second contact line string clamp (12); A first U-shaped lifting ring (13), the two side arms of which have an opening are respectively provided with third lifting ring limiting structures, the opening end of the first U-shaped lifting ring (13) is embedded in the first wedge-shaped tightening groove, and the two third lifting ring limiting structures are respectively cooperated with the first lifting ring limiting structure and the second lifting ring limiting structure to achieve the positioning of the first U-shaped lifting ring (13) in the first wedge-shaped tightening groove; the first U-shaped lifting ring (13) is used for the lifting string (3) to pass through; A first wedge (14) is adapted to the contour of the first wedge-shaped tightening groove, and the first wedge (14) is inserted into the first wedge-shaped tightening groove to apply a tightening force toward both sides of the first wedge-shaped tightening groove, so that the wire clamping jaws clamp the contact wire (6).

2. The contact wire hanger wire clamp according to claim 1, characterized in that: The first wedge-shaped tightening groove is a first trapezoidal tightening groove with an isosceles trapezoidal cross section, the large end of the cross section of the first trapezoidal tightening groove faces the wire clamping jaw, and the inclined wedge surfaces on both sides of the first trapezoidal tightening groove are respectively located on the inner side of the second end of the first contact line string clamp (11) and the inner side of the second end of the second contact line string clamp (12); a wedge positioning protrusion (18) located at the large end of the cross section of the first trapezoidal tightening groove is respectively provided on the inner side of the second end of the first contact line string clamp (11) and the inner side of the second end of the second contact line string clamp (12).

3. The contact wire hanger wire clamp according to claim 2, characterized in that: The middle parts of the inclined wedge surfaces on both sides of the first trapezoidal tensioning groove are provided with grooves (19) for accommodating the side arms of the first U-shaped lifting ring (13); the first lifting ring limiting structure and the second lifting ring limiting structure are both positioning holes (110) opened at the grooves (19); the third lifting ring limiting structure is a positioning block (111) adapted to the positioning hole (110); the first U-shaped lifting ring (13) is plugged into and matched with the positioning hole (110) through the positioning block (111) and is hung in the first trapezoidal tensioning groove.

4. The contact wire hanger wire clamp according to claim 2 or 3, characterized in that: The axial direction of the first wedge-shaped tightening groove is parallel to the first pin shaft (17), and the cross-sectional area of ​​the first wedge-shaped tightening groove gradually decreases from the first axial end to the second axial end; the axial direction of the first wedge (14) is parallel to the first pin shaft (17), and the first wedge (14) is provided with a strip-shaped limiting groove (114) extending along the axial direction thereof; The contact line suspension string clamp (1) further comprises an arc-shaped connecting shaft (112) and an anti-dropping clip (113), wherein: The arc-shaped connecting shaft (112) sequentially passes through the first contact line string suspension clamp (11), the first end in the length direction of the strip-shaped limiting groove (114), and the second contact line string suspension clamp (12); The second end of the strip-shaped limiting groove (114) in the length direction extends to the outside of the second axial end of the first wedge-shaped tightening groove, and the anti-slip clip (113) is clamped in the portion of the strip-shaped limiting groove (114) located outside the second axial end of the first wedge-shaped tightening groove. The anti-slip clip (113) is used to cooperate with the arc-shaped connecting shaft (112) to limit the axial movement of the first wedge (14).

5. A load-bearing cable hanging string clamp, characterized in that: include: A first load-bearing cable suspension string clamp (21), a first end of which is provided with a first wire clamping hoop (25), and a fourth suspension ring limiting structure is also provided on the first load-bearing cable suspension string clamp (21); A second load-bearing cable suspension clamp (22), a first end of which is provided with a second wire clamp (26), and a fifth suspension ring limiting structure is also provided on the second load-bearing cable suspension clamp (22); the second load-bearing cable suspension clamp (22) is riveted to the first load-bearing cable suspension clamp (21) via a second pin shaft (27), so that a wire clamp for clamping the load-bearing cable (7) is formed between the first wire clamp (25) and the second wire clamp (26), and a second wedge-shaped tensioning groove is formed between the second end of the first load-bearing cable suspension clamp (21) and the second end of the second load-bearing cable suspension clamp (22); The second U-shaped lifting ring (23) has two arms of an open end respectively provided with a sixth lifting ring limiting structure, the open end of the second U-shaped lifting ring (23) is embedded in the second wedge-shaped tightening groove, and the two sixth lifting ring limiting structures are respectively matched with the fourth lifting ring limiting structure and the fifth lifting ring limiting structure to achieve the positioning of the second U-shaped lifting ring (23) in the second wedge-shaped tightening groove; the second U-shaped lifting ring (23) is used for the lifting string (3) to pass through; The second wedge (24) is adapted to the contour of the second wedge-shaped tensioning groove, and the second wedge (24) is inserted into the second wedge-shaped tensioning groove to apply a tensioning force toward both sides of the second wedge-shaped tensioning groove, so that the wire clamp clamps the load-bearing cable (7).

6. The catenary cable chord clamp according to claim 5, characterized in that: The second wedge-shaped tensioning groove is a second trapezoidal tensioning groove with an isosceles trapezoidal cross section, and the inclined wedge surfaces on both sides of the second trapezoidal tensioning groove are respectively located on the inner side of the second end of the first load-bearing cable suspension clamp (21) and the inner side of the second end of the second load-bearing cable suspension clamp (22); a wedge positioning protrusion (18) located at the large end of the cross section of the second trapezoidal tensioning groove is respectively provided on the inner side of the second end of the first load-bearing cable suspension clamp (21) and the inner side of the second end of the second load-bearing cable suspension clamp (22).

7. The catenary cable suspender string clamp according to claim 6, characterized in that: The middle parts of the inclined wedge surfaces on both sides of the second trapezoidal tensioning groove are provided with grooves (19) for accommodating the side arms of the second U-shaped lifting ring (23); the fourth lifting ring limiting structure and the fifth lifting ring limiting structure are both positioning holes (110) opened at the grooves (19); the sixth lifting ring limiting structure is a positioning block (111) adapted to the positioning hole (110); the second U-shaped lifting ring (23) is plugged into and matched with the positioning hole (110) through the positioning block (111) and is hung in the second trapezoidal tensioning groove.

8. The load-bearing cable suspender string clamp according to claim 6 or 7, characterized in that: The axial direction of the second wedge-shaped tightening groove is parallel to the second pin shaft (27), and the cross-sectional area of ​​the second wedge-shaped tightening groove gradually decreases from the axial first end to the axial second end; the axial direction of the second wedge (24) is parallel to the second pin shaft (27), and the second wedge (24) is provided with a strip-shaped limiting groove (114) extending along the axial direction thereof; The load-bearing cable string clamp (2) further comprises an arc-shaped connecting shaft (112) and an anti-dropping clip (113), wherein: The arc-shaped connecting shaft (112) sequentially passes through the first load-bearing cable suspension cleat (21), the first end in the length direction of the strip-shaped limiting groove (114), and the second load-bearing cable suspension cleat (22); The second end of the strip-shaped limiting groove (114) in the length direction extends to the outside of the second axial end of the second wedge-shaped tightening groove, and the anti-slip clip (113) is clamped in the portion of the strip-shaped limiting groove (114) located outside the second axial end of the second wedge-shaped tightening groove. The anti-slip clip (113) is used to cooperate with the arc-shaped connecting shaft (112) to limit the axial movement of the second wedge (24).

9. An integral suspension string, characterized in that: It comprises a suspension string (3), a contact line suspension string clamp (1) as claimed in any one of claims 1 to 4, and a load-bearing cable suspension string clamp (2) as claimed in any one of claims 5 to 8; the two ends of the suspension string (3) respectively pass through the first U-shaped suspension ring (13) and the second U-shaped suspension ring (23), and are respectively crimped and fixed by a crimping tube (4), and current-carrying rings are left at both ends of the suspension string (3), and a heart-shaped protective ring (5) is provided at the bend of any of the current-carrying rings.

10. The integral suspension string according to claim 9, characterized in that: The contact line suspension string clamp (1) and the load-bearing cable suspension string clamp (2) are both provided with a suspension string end fixing structure (116).

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