Novel pressing-method bolt-free integral dropper and contact line and carrier cable dropper clamp

Abstract

The utility model discloses a novel pressing bolt-free integral dropper, a contact line dropper clamp and a carrier cable dropper clamp. The utility model relates to a contact line dropper clamp, which consists of a detachable contact line left half dropper clamp and a detachable contact line right half dropper clamp which have the same structure and are inserted together by taking a vertical shaft as a symmetry axis through a positioning and clamping device and an anti-loosening device I; a first threaded through hole for disassembly is formed in the contact line left half dropper clamp body or the contact line right half dropper clamp body, and a first threading round hole which is not a through hole is formed in the left end face of the middle of the contact line left half dropper clamp body or the right end face of the middle of the contact line right half dropper clamp body. A first short connecting line pressing hole and a second short connecting line pressing hole are formed in the front side face of the middle of the contact line left half dropper clamp body and the rear side face of the middle of the contact line right half dropper clamp body respectively, the upper layer of the contact line left half dropper clamp body and the upper layer of the contact line right half dropper clamp body are each provided with a semicircular lifting hook, and the two semicircular lifting hooks form a contact line dropper clamp lifting hook.

Description

Technical Field

[0001] The utility model relates to an erection device for an electrified railway catenary, and particularly to a new type of boltless integral suspension clamp used on a high-speed railway catenary. Background Art

[0002] The integral suspension clamp is the most used part on the catenary. Its function is to evenly suspend the contact wire on the carrier cable to ensure that the pantograph can stably and smoothly obtain current during the high-speed sliding contact with the contact wire, and to avoid phenomena such as jumping and off-line between the pantograph and the catenary as much as possible.

[0003] Currently, the most used integral suspension clamp on high-speed railway catenaries is a stamping type integral suspension clamp, which is a composite part composed of multiple parts through hinging and crimping. During installation, the integral suspension clamp is connected to the contact wire and the carrier cable as a whole through fastening bolts.

[0004] Operation practice shows that there are certain safety hazards for the integral suspension clamp device with this structure on high-speed railways with relatively severe vibrations. First, there are multiple movable joints in the integral suspension clamp, and these movable joints are prone to wear during vibrations, resulting in a short service life. Second, the fastening bolts are prone to loosen due to vibrations, and if not discovered in time, the bolts are likely to fall off. Especially on high-speed railways, with high running speeds, it is extremely easy to cause pantograph-catenary faults after the integral suspension clamp device falls off. To improve the reliability of high-speed railway catenaries, it is necessary to regularly invest manpower and material resources during operation to inspect and maintain the key stressed parts of the integral suspension clamp device, increasing the operating cost.

[0005] To solve the problems existing in the stamping type integral suspension clamp device, a boltless integral suspension clamp with a suspension ring and an application number of 202111072228.8 was invented. This boltless integral suspension clamp device has high reliability, a long service life, and low operating costs, but there are also deficiencies. The reason is that the crimping method of the suspension clamp wire adopts a two-stage or three-stage horizontal elliptical crimping, that is, the crimping mark is perpendicular to the wire body of the suspension clamp wire at the crimped part, and the two wire bodies at the crimped part are elliptical. This crimping method has two major problems. One is that the stranded wire that was originally stranded into a circle and has uniform single-wire stress is flattened, and the single wires are forced to disperse, resulting in extremely uneven single-wire stress and destroying the stress mode of the stranded wire. The other is that the main suspension clamp wire and the short connecting wire are squeezed together, forming friction between wires and strands. Since the diameter of the single wire of the suspension clamp wire is only 0.5 mm, it is extremely easy to cause abrasion and breakage. Therefore, the service life of the integral suspension clamp under this crimping method is relatively short.

[0006] In summary, there is an urgent need for a contact wire suspension clamp, a carrier cable suspension clamp, and an integral suspension clamp with high wear resistance and long life. Content of the Utility Model

[0007] The technical problem to be solved by the present utility model is to provide a new type of boltless integral suspension string, contact wire suspension clamp and carrier wire suspension clamp with high wear resistance and long service life by pressing method.

[0008] The contact wire suspension clamp of the utility model is composed of a detachable left half contact wire suspension clamp and a right half contact wire suspension clamp. The structures of the left and right half contact wire suspension clamps are the same, and they are inserted together symmetrically about the vertical axis through a positioning and clamping device and a first anti-loosening device. The positioning and clamping device and the first anti-loosening device are located in the middle layer of the left and right half contact wire suspension clamp bodies. The positioning and clamping device consists of a first positioning and clamping pair composed of a first positioning pin with a right trapezoidal horizontal cross-section extending horizontally to the right and connected to the left half contact wire suspension clamp body and a first positioning groove located on the right half contact wire suspension clamp body and cooperating with it, and a second positioning and clamping pair composed of a second positioning pin with a right trapezoidal horizontal cross-section extending horizontally to the left and connected to the right half contact wire suspension clamp body and a second positioning groove located on the left half contact wire suspension clamp body and cooperating with it. The two side straight faces of the first positioning pin and the second positioning pin are parallel and have an appropriate gap. The first anti-loosening device consists of a first anti-loosening pair composed of a first upper straight rack plate arranged on the right side of the first positioning pin and located on the left half contact wire suspension clamp body and a first lower straight rack plate arranged on the right side of the first positioning groove and located under the right half contact wire suspension clamp body and cooperating with it, and a second anti-loosening pair composed of a second upper straight rack plate arranged on the left side of the second positioning pin and located on the right half contact wire suspension clamp body and a second lower straight rack plate arranged on the left side of the second positioning groove and located under the left half contact wire suspension clamp body and cooperating with it. The planes where the tooth tops of the first and second upper straight rack plates are located are flush with the bottom surfaces of the first and second positioning pins, and the planes where the tooth roots of the first and second lower straight rack plates are located are flush with the bottom surfaces of the second and first positioning grooves. On the lower layer of the left and right half contact wire suspension clamp bodies, a clamping claw is provided symmetrically about the transverse axis of the contact wire suspension clamp body. The two clamping claws cooperate with the clamping grooves of the clamped contact wire respectively. The outer shape of the middle and lower part of the contact wire suspension clamp body is a cuboid. Its front side wall is inserted by the side wall of the second positioning groove connected to the left half contact wire suspension clamp body and the side wall of the right half contact wire suspension clamp body cooperating with it. Its rear side wall is inserted by the side wall of the first positioning groove connected to the right half contact wire suspension clamp body and the side wall of the left half contact wire suspension clamp body cooperating with it. The insertion ends of the side walls of the first and second positioning grooves are both rectangular. A first threaded through hole for disassembly is provided on the left half contact wire suspension clamp body at the left end of the second positioning groove and facing the left end face of the second positioning pin or on the right half contact wire suspension clamp body facing the right end face of the first positioning pin. A first wire-passing round hole is provided on the left end face in the middle of the left half contact wire suspension clamp body or on the right end face in the middle of the right half contact wire suspension clamp body. The first wire-passing round hole is not a through hole. The first wire-passing round hole is parallel to the first threaded through hole for disassembly.On the front side of the middle part of the left half of the contact wire hanger clamp body and the rear side of the middle part of the right half of the contact wire hanger clamp body, a first and a second short connection wire pressing holes are respectively provided. The setting position of the first short connection wire pressing hole corresponds to the position of the first wire threading round hole and is located on the left half of the contact wire hanger or the right half of the contact wire hanger. On the upper layer of the bodies of the left half of the contact wire hanger and the right half of the contact wire hanger, there is a semi-circular hook each with the transverse axis of the contact wire hanger clamp body as the axis of symmetry. The two semi-circular hooks form the contact wire hanger clamp hook. The left half of the contact wire hanger and the right half of the contact wire hanger are both made of cast aluminum bronze with the material grade of C95500 by investment precision casting.,

[0009] For the contact wire hanger clamp of the present utility model, wherein, the tooth height of the teeth of the first upper straight rack plate, the first lower straight rack plate, the second upper straight rack plate, and the second lower straight rack plate is 0.5 mm.

[0010] For the contact wire hanger clamp of the present utility model, wherein, the diameter of the first threaded through hole for disassembly is 5 mm.

[0011] For the contact wire hanger clamp of the present utility model, wherein, the angle formed by the straight side face and the inclined side face of the first and second positioning pins is 5°, and the angle formed by the straight side face and the inclined side face of the first and second positioning grooves is 5°.

[0012] The difference between the contact wire hanger clamp of the present utility model and the prior art lies in that it is provided with a first threaded through hole for disassembly, a first wire threading round hole, and a first short connection wire pressing hole, and does not include a lower suspension loop. The contact wire hanger clamp is made of cast aluminum bronze with the material grade of C95500 by investment precision casting. When connecting with the suspension wire, it uses side extrusion clamping instead of offset clamping, improving the wear resistance and extending the service life.

[0013] The hanging string clamp for the catenary of the utility model is composed of a detachable left half hanging string clamp for the catenary and a right half hanging string clamp for the catenary. The structures of the left and right half hanging string clamps for the catenary are the same, and they are inserted together symmetrically about the vertical axis through a clamping and positioning device and an anti-loosening device II. The clamping and positioning device and the anti-loosening device II are located in the middle layer of the bodies of the left and right half hanging string clamps for the catenary. The clamping and positioning device consists of a clamping and positioning pair I composed of a positioning pin I with a right trapezoidal horizontal cross-section extending horizontally to the right and connected to the body of the left half hanging string clamp for the catenary and a positioning groove I on the body of the right half hanging string clamp for the catenary that cooperates with it, and a clamping and positioning pair II composed of a positioning pin II with a right trapezoidal horizontal cross-section extending horizontally to the left and connected to the body of the right half hanging string clamp for the catenary and a positioning groove II on the body of the left half hanging string clamp for the catenary that cooperates with it. The two side straight faces of the positioning pin I and the positioning pin II are parallel and have an appropriate gap. The anti-loosening device II consists of an anti-loosening pair I composed of a lower straight rack plate I arranged on the right side of the positioning pin I and located on the body of the left half hanging string clamp for the catenary and an upper straight rack plate I arranged on the right side of the positioning groove I and located on the upper surface of the body of the right half hanging string clamp for the catenary that cooperates with it, and an anti-loosening pair II composed of a lower straight rack plate II arranged on the left side of the positioning pin II and located on the body of the right half hanging string clamp for the catenary and an upper straight rack plate II arranged on the left side of the positioning groove II and located on the upper surface of the body of the left half hanging string clamp for the catenary that cooperates with it. The planes where the tooth tops of the lower straight rack plates I and II are located are flush with the top surfaces of the positioning pins I and II, and the planes where the tooth roots of the upper straight rack plates I and II are located are flush with the top surfaces of the positioning grooves II and I. Semi-cylindrical bodies are respectively arranged on the upper layers of the bodies of the left half hanging string clamp for the catenary and the right half hanging string clamp for the catenary symmetrically about the transverse axis of the body of the hanging string clamp for the catenary. The inner hole of the cylindrical body composed of the two semi-cylindrical bodies cooperates with the catenary. The external shape of the upper middle part of the body of the hanging string clamp for the catenary is a cuboid. The rear side wall is inserted by the side wall of the positioning groove II connected to the body of the left half hanging string clamp for the catenary and the side wall of the body of the right half hanging string clamp for the catenary that cooperates with it. The front side wall is inserted by the side wall of the positioning groove I connected to the body of the right half hanging string clamp for the catenary and the side wall of the body of the left half hanging string clamp for the catenary that cooperates with it. The insertion ends of the side walls of the positioning grooves I and II are both rectangular. A disassembly threaded through hole I is arranged on the body of the left half hanging string clamp for the catenary at the left end of the positioning groove II and facing the left end face of the positioning pin II, or on the body of the right half hanging string clamp for the catenary at the right end of the positioning groove I and facing the right end face of the positioning pin I. A threading round hole I is opened at the left end face in the middle of the body of the left half hanging string clamp for the catenary or at the right end face in the middle of the body of the right half hanging string clamp for the catenary. The threading round hole I is not a through hole. The threading round hole I is parallel to the disassembly threaded through hole I.On the front side of the middle part of the left half hanger wire clip body of the catenary and the rear side of the middle part of the right half hanger wire clip body of the catenary, a first and a second short connection wire pressing hole are respectively provided. The setting position of the first short connection wire pressing hole corresponds to the position of the first wire threading round hole and both are located on the left half hanger wire clip or the right half hanger wire clip of the catenary. On the lower layer of the bodies of the left half hanger wire clip and the right half hanger wire clip of the catenary, a semi-circular catenary hook is provided on each side with the transverse axis of the catenary hanger wire clip body as the axis of symmetry. The two semi-circular catenary hooks form the catenary hanger wire clip hook. The left half hanger wire clip and the right half hanger wire clip of the catenary are both made of cast aluminum bronze with the material grade of C95500 by investment precision casting.,

[0014] For the catenary hanger wire clip of the present utility model, wherein the inner wall of the semi-cylindrical body is a smooth surface.

[0015] For the catenary hanger wire clip of the present utility model, wherein the tooth height of the teeth of the first lower straight rack plate, the first upper straight rack plate, the second lower straight rack plate and the second upper straight rack plate is 0.5 mm.

[0016] For the catenary hanger wire clip of the present utility model, wherein the diameter of the first threaded through hole for disassembly is 5 mm.

[0017] For the catenary hanger wire clip of the present utility model, wherein the angle formed by the straight side surface and the inclined side surface of the first and second positioning pins is 5°, and the angle formed by the straight side surface and the inclined side surface of the first and second positioning grooves is 5°.

[0018] The difference between the catenary hanger wire clip of the present utility model and the prior art is that it is provided with a first threaded through hole for disassembly, a first wire threading round hole and a first short connection wire pressing hole, and does not include a lower suspension loop. The catenary hanger wire clip is made of cast aluminum bronze with the material grade of C95500 by investment precision casting. When connecting with the hanger wire, it uses side extrusion clamping by punching instead of offset clamping, improving the wear resistance and extending the service life. In addition, the inner wall of the semi-cylindrical body of the catenary hanger wire clip is a smooth surface, which can protect the catenary and reduce wear during the installation process.

[0019] The novel boltless integral suspension string with novel pressing method of the utility model comprises the aforementioned contact wire suspension string clamp, the aforementioned carrier wire suspension string clamp, and the suspension string wire. The suspension string wire includes a wire body, an upper pressing pipe joint, a lower pressing pipe joint, an upper heart-shaped protective ring, and a lower heart-shaped protective ring. The upper heart-shaped protective ring is sleeved on the carrier wire suspension string hook of the carrier wire suspension string clamp, and the lower heart-shaped protective ring is sleeved on the contact wire suspension string hook of the contact wire suspension string clamp. The upper end of the wire body bypasses the upper heart-shaped protective ring and inserts into the first wire-passing round hole and is pressed and tightened by stamping through the short wire pressing hole 1. The lower end of the wire body bypasses the lower heart-shaped protective ring and inserts into the first wire-passing round hole and is pressed and tightened by stamping through the first short wire pressing hole. The upper pressing pipe joint is close to the end of the upper heart-shaped protective ring and wraps and presses on the two folded wire bodies. The lower pressing pipe joint is close to the end of the lower heart-shaped protective ring and wraps and presses on the two folded wire bodies. There is a 1-mm gap between the two wire bodies wrapped and pressed by the upper pressing pipe joint, and there is a 1-mm gap between the two wire bodies wrapped and pressed by the lower pressing pipe joint. The indentation of the upper pressing pipe joint and the indentation of the lower pressing pipe joint are parallel to the wire body at the pressed joint. The indentation of the upper pressing pipe joint is opposite to the gap between the two wire bodies wrapped and pressed by the upper pressing pipe joint, and the indentation of the lower pressing pipe joint is opposite to the gap between the two wire bodies wrapped and pressed by the lower pressing pipe joint.

[0020] The difference between the novel boltless integral suspension string with novel pressing method of the utility model and the prior art is that in the novel boltless integral suspension string with novel pressing method of the utility model, the indentation is parallel to the two wire bodies of the suspension string wire at the pressed joint, and the indentation is between the two pressed wire bodies, and there is a 1-mm gap between the two wires, and the two pressed wire bodies still remain circular, thus ensuring the best stress state of the stranded wire as a whole. In addition, since there is a physical isolation, that is, a 1-mm gap, between the two pressed wire bodies, the two wire bodies will not rub against each other at the outlets of the upper and lower pressing pipe joints, greatly improving the service life of the integral suspension string, which is 1.5 to 2 times that of the traditional integral suspension string with transverse pressing.

[0021] The novel boltless integral suspension string with novel pressing method of the utility model will be further described below with reference to the accompanying drawings. Description of the Drawings

[0022] Figure 1 is a perspective view of the novel boltless integral suspension string with novel pressing method of the utility model;

[0023] Figure 2 is a rear view of the novel boltless integral suspension string with novel pressing method of the utility model;

[0024] Figure 3 is a left view of the novel boltless integral suspension string with novel pressing method of the utility model;

[0025] Figure 4 is along Figure 5 the sectional view taken along B-B in

[0026] Figure 5Rear view of the connection between the contact wire suspension clamp, the suspension wire and the contact wire;

[0027] Figure 6 Along the Figure 5 Sectional view taken along A-A in

[0028] Figure 7 Left view of the connection between the contact wire suspension clamp, the suspension wire and the contact wire;

[0029] Figure 8 Right view of the connection between the contact wire suspension clamp, the suspension wire and the contact wire;

[0030] Figure 9 Left view of the contact wire suspension clamp;

[0031] Figure 10 Along the Figure 9 Sectional view taken along C-C in

[0032] Figure 11 Schematic diagram before the insertion connection between the left half of the contact wire suspension clamp and the right half of the contact wire suspension clamp;

[0033] Figure 12 Stereogram before the insertion connection between the left half of the contact wire suspension clamp and the right half of the contact wire suspension clamp;

[0034] Figure 13 Schematic diagram of the insertion connection between the left half of the contact wire suspension clamp and the right half of the contact wire suspension clamp;

[0035] Figure 14 Schematic diagram of the insertion connection between the left half of the contact wire suspension clamp and the right half of the contact wire suspension clamp in another direction;

[0036] Figure 15 For Figure 14 Stereogram in yet another direction;

[0037] Figure 16 For Figure 14 Schematic diagram in another direction;

[0038] Figure 17 Left view of the right half of the contact wire suspension clamp;

[0039] Figure 18 Along the Figure 17 Sectional view taken along J-J in

[0040] Figure 19 Left view of the left half of the contact wire suspension clamp;

[0041] Figure 20 Along the Figure 19 Sectional view taken along K-K in

[0042] Figure 21 Along theFigure 22 Cross-sectional view along D-D;

[0043] Figure 22 Rear view of the connection of the catenary suspension clip to the suspension wire and the catenary;

[0044] Figure 23 Along Figure 22 Cross-sectional view along E-E;

[0045] Figure 24 Left view of the connection of the catenary suspension clip to the suspension wire and the catenary;

[0046] Figure 25 Right view of the connection of the catenary suspension clip to the suspension wire and the catenary;

[0047] Figure 26 Left view of the catenary suspension clip;

[0048] Figure 27 Along Figure 26 Cross-sectional view along F-F;

[0049] Figure 28 Rear view of the catenary suspension clip;

[0050] Figure 29 Along Figure 28 Cross-sectional view along G-G;

[0051] Figure 30 Schematic diagram before the insertion connection of the left half catenary suspension clip and the right half catenary suspension clip;

[0052] Figure 31 Isometric view before the insertion connection of the left half catenary suspension clip and the right half catenary suspension clip;

[0053] Figure 32 Schematic diagram of the insertion connection of the left half catenary suspension clip and the right half catenary suspension clip;

[0054] Figure 33 Isometric view of the insertion connection of the left half catenary suspension clip and the right half catenary suspension clip;

[0055] Figure 34 Right view of the left half catenary suspension clip;

[0056] Figure 35 Along Figure 34 Cross-sectional view along H-H;

[0057] Figure 36 Right view of the right half catenary suspension clip;

[0058] Figure 37 Along Figure 36Cross-sectional view taken along line I-I in the middle. Detailed implementation mode

[0059] As Figures 1 - 3 shown, the novel boltless integral suspension string 1000 of the present utility model includes a suspension string wire 300, a contact wire suspension string clamp 100 connected to both ends of the suspension string wire 300, and a carrier cable suspension string clamp 200.

[0060] Among them, as Figure 1 、 9 、10, 14 - 20 shown, the contact wire suspension string clamp 100 is composed of a detachable left half contact wire suspension string clamp 1 and a right half contact wire suspension string clamp 1'. The left half contact wire suspension string clamp 1 and the right half contact wire suspension string clamp 1' have the same structure and are inserted together with the vertical axis as the axis of symmetry through a positioning and clamping device 11 and a loosening prevention device 12; the positioning and clamping device 11 and the loosening prevention device 12 are located in the middle layer of the left half contact wire suspension string clamp 1 body and the right half contact wire suspension string clamp 1' body. The positioning and clamping device 11 is composed of a first positioning and clamping pair 111 and a second positioning and clamping pair 112. The first positioning and clamping pair 111 is composed of a first positioning pin 1111 and a first positioning groove 1111'. A first positioning pin 1111 extends horizontally to the right from the left half contact wire suspension string clamp 1 body. The horizontal cross-section of the first positioning pin 1111 is a right-angled trapezoid. A first positioning groove 1111' is provided on the right half contact wire suspension string clamp 1' body. The first positioning groove 1111' cooperates with the first positioning pin 1111. After the first positioning pin 1111 is inserted into the first positioning groove 1111', there is a gap between the right end face of the first positioning pin 1111 and the right side wall of the first positioning groove 1111'. A second positioning pin 1121' with a right-angled trapezoid horizontal cross-section extends horizontally to the left from the right half contact wire suspension string clamp 1' body. A second positioning groove 1121 that cooperates with the second positioning pin 1121' is provided on the left half contact wire suspension string clamp 1 body. The second positioning pin 1121' and the second positioning groove 1121 form the second positioning and clamping pair 112. The side straight faces of the first positioning pin 1111 and the second positioning pin 1121' are parallel and have a gap.

[0061] As Figure 11 shown, the loosening prevention device 12 is composed of a first loosening prevention pair 121 and a second loosening prevention pair 122. A first upper straight rack plate 1211 is provided on the left half contact wire suspension string clamp 1 body, on the right side of the first positioning pin 1111. A first lower straight rack plate 1211' that cooperates with the first upper straight rack plate 1211 is provided under the right half contact wire suspension string clamp 1' body, on the right side of the first positioning groove 1111'. The first upper straight rack plate 1211 and the first lower straight rack plate 1211' form the first loosening prevention pair 121. As Figure 12 、 13As shown, on the body of the right half contact wire suspension clamp 1', a second upper straight rack plate 1221' is provided on the left side of the second positioning pin 1121'. Below the body of the left half contact wire suspension clamp 1 and on the left side of the second positioning groove 1121, a second lower straight rack plate 1221 is provided to cooperate with the second upper straight rack plate 1221'. The second upper straight rack plate 1221' and the second lower straight rack plate 1221 form a second anti-loosening pair 122. The first upper straight rack plate 1211 meshes with the first lower straight rack plate 1211', and the second upper straight rack plate 1221' meshes with the second lower straight rack plate 1221. The tooth height of the teeth of the first upper straight rack plate 1211, the first lower straight rack plate 1211', the second upper straight rack plate 1221', and the second lower straight rack plate 1221 is 0.5 mm.

[0062] The plane where the tooth top of the first upper straight rack plate 1211 is located, the plane where the tooth root of the first lower straight rack plate 1211' is located are flush with the bottom surface of the first positioning pin 1111; the plane where the tooth top of the second upper straight rack plate 1221' is located, the plane where the tooth root of the second lower straight rack plate 1221 is located are flush with the bottom surface of the second positioning pin 1121'. The plane where the tooth root of the first lower straight rack plate 1211' is located is flush with the bottom surface of the second positioning groove 1121; the plane where the tooth root of the second lower straight rack plate 1221 is located is flush with the bottom surface of the first positioning groove 1111'.

[0063] As Figure 9 shown, on the upper layer of the bodies of the left half contact wire suspension clamp 1 and the right half contact wire suspension clamp 1', a semi-circular hook 131 and 131' are respectively provided with the transverse axis of the contact wire suspension clamp body as the axis of symmetry. The two semi-circular hooks 131 and 131' form the contact wire suspension clamp hook 13.

[0064] On the lower layer of the body of the left half contact wire suspension clamp 1, a wire clamping claw 141 is provided. On the lower layer of the body of the right half contact wire suspension clamp 1', a wire clamping claw 141' is provided. The two wire clamping claws are symmetrically arranged with the transverse axis of the contact wire suspension clamp body as the axis of symmetry. The two wire clamping claws 141 and 141' respectively cooperate with the wire clamping grooves 6001 of the clamped contact wire 600 (see Figure 3 ). As Figure 10 shown, at the right end of the first positioning groove 1111', on the body of the right half contact wire suspension clamp 1', a first threaded through hole 15 for disassembly is provided opposite to the right end face of the first positioning pin 1111. The diameter of the first threaded through hole 15 for disassembly is 5 mm.

[0065] As Figure 11 , 13As shown in the figure, the outer shape of the middle and lower part of the contact wire suspension clamp body is a cuboid. The front side wall 16 of the contact wire suspension clamp body is formed by inserting the side wall 161 of the second positioning groove 1121 connected to the contact wire left half suspension clamp 1 body and the side wall 161' of the contact wire right half suspension clamp 1' body that cooperates with it. The rear side wall 17 of the contact wire suspension clamp body is formed by inserting the side wall 171' of the first positioning groove 1111' connected to the contact wire right half suspension clamp 1' body and the side wall 171 of the contact wire left half suspension clamp 1 body that cooperates with it. The insertion end of the side wall 171' of the first positioning groove 1111' is rectangular, and the insertion end of the side wall 161 of the second positioning groove 1121 is rectangular.

[0066] As Figure 10 shown, the angle formed by the side straight surface and the side inclined surface of the first positioning pin 1111 is 5°, and the angle formed by the side straight surface and the side inclined surface of the first positioning groove 1111' is 5°. The angle formed by the side straight surface and the side inclined surface of the second positioning pin 1121' is 5°, and the angle formed by the side straight surface and the side inclined surface of the second positioning groove 1121 is 5°.

[0067] As Figure 10 shown, a first wire-passing round hole 18 is opened on the left end face of the middle part of the contact wire left half suspension clamp 1 body. The first wire-passing round hole 18 is not a through hole, and the first wire-passing round hole 18 is parallel to the first threaded through hole 15 for disassembly. A first short wire connection pressing hole 10 and a second short wire connection pressing hole 10' are respectively opened on the front side of the middle part of the contact wire left half suspension clamp 1 body and the rear side of the middle part of the contact wire right half suspension clamp 1' body. The setting position of the first short wire connection pressing hole 10 corresponds to the position of the first wire-passing round hole 18 and is located on the contact wire left half suspension clamp 1 (see Figure 16 ).

[0068] As Figures 1 - 3 As shown in Figures 26 and 27, among them, the carrier cable suspension clamp 200 is composed of a detachable carrier cable left half suspension clamp 2 and a carrier cable right half suspension clamp 2'. The carrier cable left half suspension clamp 2 and the carrier cable right half suspension clamp 2' have the same structure and are inserted together with the vertical axis as the axis of symmetry through the clamping and positioning device 21 and the anti-loosening device 22.

[0069] As Figures 1 - 3, as shown in Figures 27 - 29, the clamping and positioning device 21 and the anti-loosening device 22 of the catenary suspension clip 200 are located in the middle layer of the body of the left half catenary suspension clip 2 and the body of the right half catenary suspension clip 2'. The clamping and positioning device 21 of the catenary suspension clip 200 consists of a first clamping and positioning pair 211 and a second clamping and positioning pair 212. The body of the left half catenary suspension clip 2 horizontally extends rightward with a positioning pin 2111 having a right trapezoidal horizontal cross-section. A first positioning groove 2111' is provided on the body of the right half catenary suspension clip 2'. The positioning pin 2111 and the first positioning groove 2111' cooperate with each other and form the first clamping and positioning pair 211. The body of the right half catenary suspension clip 2' horizontally extends leftward with a positioning pin 2121' having a right trapezoidal horizontal cross-section. A second positioning groove 2121 is provided on the body of the left half catenary suspension clip 2. The positioning pin 2121' and the second positioning groove 2121 cooperate with each other to form the second clamping and positioning pair 212. The side straight surfaces of the positioning pin 2111 and the positioning pin 2121' are parallel and have a gap therebetween.

[0070] As Figures 28 - 33 shown, the anti-loosening device 22 of the catenary suspension clip 200 consists of a first anti-loosening pair 221 and a second anti-loosening pair 222. The first anti-loosening pair 221 is composed of a lower straight rack plate 2211 provided on the right side of the first positioning pin 2111 and located on the body of the left half catenary suspension clip 2, and an upper straight rack plate 2211' provided on the right side of the first positioning groove 2111' and located on the upper surface of the body of the right half catenary suspension clip 2' and cooperating with it. The second anti-loosening pair 222 is composed of a lower straight rack plate 2221' provided on the left side of the positioning pin 2121' and located on the body of the right half catenary suspension clip 2', and an upper straight rack plate 2221 provided on the left side of the second positioning groove 2121 and located on the upper surface of the body of the left half catenary suspension clip 2 and cooperating with it. The plane where the tooth tops of the lower straight rack plate 2211 are located is flush with the top surface of the positioning pin 2111. The plane where the tooth tops of the lower straight rack plate 2221' are located is flush with the top surface of the positioning pin 2121'. The plane where the tooth roots of the upper straight rack plate 2211' are located is flush with the top surface of the second positioning groove 2121. The plane where the tooth roots of the upper straight rack plate 2221 are located is flush with the top surface of the first positioning groove 2111'. The tooth height of the teeth of the lower straight rack plate 2211 and the upper straight rack plate 2211' is 0.5 mm. The tooth height of the teeth of the lower straight rack plate 2221' and the upper straight rack plate 2221 is 0.5 mm. As Figure 27 shown, the angle formed by the side straight surface and the side inclined surface of the positioning pin 2111 and the positioning pin 2121' is 5°. The angle formed by the side straight surface and the side inclined surface of the first positioning groove 2111' and the second positioning groove 2121 is 5° (see Figure 27 ).

[0071] As Figures 22 - 37As shown, on the lower layer of the main bodies of the left half catenary suspension clip 2 and the right half catenary suspension clip 2', a catenary semi-circular hook 231, 231' is provided on each side with the transverse axis of the catenary suspension clip body as the axis of symmetry. The catenary semi-circular hooks 231 and 231' form the catenary suspension clip hook 23.

[0072] As Figures 1 - 3 , shown in Figures 34 - 37, on the upper layer of the main bodies of the left half catenary suspension clip 2 and the right half catenary suspension clip 2', a semi-cylindrical body is provided on each side with the transverse axis of the catenary suspension clip body as the axis of symmetry. The cylindrical body formed by the two semi-cylindrical bodies 241, 241' is matched with the catenary 700. The inner walls of the semi-cylindrical body 241 of the left half catenary suspension clip 2 body and the inner wall of the semi-cylindrical body 241' of the right half catenary suspension clip 2' body are both smooth surfaces. On the left half catenary suspension clip 2 body located at the left end of the positioning groove two 2121, a disassembly threaded through hole one 25 is made, and the position of the disassembly threaded through hole one 25 is directly opposite to the left end face of the positioning pin two 2121' (see Figure 31 ). The diameter of the disassembly threaded through hole one 25 is 5 mm.

[0073] As Figure 1 , 3 , shown in Figures 27, 32, the external shape of the upper middle part of the catenary suspension clip body is a cuboid. Its rear side wall 26 is formed by inserting the side wall 261 of the positioning groove two 2121 connected to the left half catenary suspension clip 2 body and the side wall 261' of the right half catenary suspension clip 2' body that cooperates with it. Its front side wall 27 is formed by inserting the side wall 271' of the positioning groove one 2111' connected to the right half catenary suspension clip 2' body and the side wall 271 of the left half catenary suspension clip 2 body that cooperates with it. The insertion ends of the side walls 271', 261 of the positioning groove one 2111' and the positioning groove two 2121 are all rectangles.

[0074] As Figure 27 shown, a wire threading round hole one 28 is opened on the right end face in the middle of the right half catenary suspension clip 2' body. The wire threading round hole one 28 is not a through hole and is parallel to the disassembly threaded through hole one 25. A short connection pressing hole one 20 is opened on the front side in the middle of the left half catenary suspension clip 2 body. A short connection pressing hole two 20' is opened on the rear side in the middle of the right half catenary suspension clip 1' body. The setting position of the short connection pressing hole two 20' corresponds to the position of the wire threading round hole one 28 and is both located on the right half catenary suspension clip 2'.

[0075] As Figures 1 - 3, as shown in Figures 4-8, 21-25, the suspension wire 300 includes a wire body 31, an upper compression joint pipe 32, a lower compression joint pipe 33, an upper heart-shaped protective ring 34, and a lower heart-shaped protective ring 35. The upper heart-shaped protective ring 34 is sleeved on the suspension wire hook 23 of the carrier wire suspension clip 200, and the lower heart-shaped protective ring 35 is sleeved on the suspension wire hook 13 of the contact wire suspension clip 100. The upper end of the wire body 31 bypasses the upper heart-shaped protective ring 34 and is inserted into the first wire-passing round hole 28 and is pressed and tightened by the short wire pressing hole 20. The lower end of the wire body 31 bypasses the lower heart-shaped protective ring 34 and is inserted into the first wire-passing round hole 18 and is pressed and tightened by the first short wire pressing hole 10. The upper compression joint pipe 32 is close to the end of the upper heart-shaped protective ring 34 and wraps and presses on the two folded wire bodies (main suspension wire 311, short wire 312’). The lower compression joint pipe 33 is close to the end of the lower heart-shaped protective ring 35 and wraps and presses on the two folded wire bodies (main suspension wire 311, short wire 312). The upper compression joint pipe 32 is provided with a wire body upper compression joint hole along its length direction, and the lower compression joint pipe 33 is provided with a wire body lower compression joint hole along its length direction. The two folded wire bodies at the upper end are pressed into the wire body upper compression joint hole, and the two folded wire bodies at the lower end are pressed into the wire body lower compression joint hole. The distance between the two wire bodies wrapped and pressed by the upper compression joint pipe 32 is 1 mm, and the distance between the two wire bodies wrapped and pressed by the lower compression joint pipe 33 is 1 mm. The indentation 321 of the upper compression joint pipe 32 and the indentation 331 of the lower compression joint pipe 33 are parallel to the wire body at the pressed part. The indentation of the upper compression joint pipe 32 is opposite to the gap between the two wire bodies wrapped and pressed by the upper compression joint pipe 32, and the indentation of the lower compression joint pipe 33 is opposite to the gap between the two wire bodies wrapped and pressed by the lower compression joint pipe 33. As Figure 23 shown, the cross-sections of the two wire bodies (i.e., the main suspension wire 311, short wire 312’) of the suspension wire pressed by the upper compression joint pipe 32 are in an “8” shape. As Figure 4 shown, the cross-sections of the two wire bodies (i.e., the main suspension wire 311, short wire 312) of the suspension wire pressed by the lower compression joint pipe 33 are also in an “8” shape.

[0076] The tensile strength of the suspension wire 300 ≥ 7.0 kN, and the fatigue times of the integral suspension wire device are 3.5 million times.

[0077] The materials of the upper and lower compression joint pipes are pure copper, and the material grade is T2. The compression connection between the upper and lower compression joint pipes and the wire body is carried out by an integral suspension wire press, the pressure is 10 MP, and the breaking force after compression connection ≥ 3.9 kN.

[0078] Among them, the contact wire suspension clip body and the carrier wire suspension clip body use the same grade of cast aluminum bronze, the grade is C95500, and their forming process is investment precision casting. The materials of the upper heart-shaped protective ring and the lower heart-shaped protective ring are stainless steel plates, and the grade is 022Cr17Ni12Mo2.

[0079] Manufacturing method of novel pressing method boltless integral suspension string of the utility model, comprising the following steps:

[0080] Step 1), prefabricating suspension string wire 300: according to design requirements, first measure the lengths of the vertical section and the bent section of the wire body 31 of the suspension string wire 300, respectively install a pressure connection pipe 32 and a lower pressure connection pipe 33 at the upper end and the lower end of the wire body 31, wind the upper end of the wire body 31 around a heart-shaped protective ring 34 for one circle and then pass it out from the upper pressure connection pipe 32, wind the lower end of the wire body 31 around a lower heart-shaped protective ring 35 for one circle and then pass it out from the lower pressure connection pipe 33, tighten the suspension string wire on a pressing platform, and ensure that there is a specified gap of 1 mm between the upper pressure connection pipe 32 and the upper heart-shaped protective ring 34, ensure that there is a specified gap of 1 mm between the lower pressure connection pipe 33 and the lower heart-shaped protective ring 35, the pressing die adopts a longitudinal "8" character pressing die, longitudinally press the upper pressure connection pipe 32 and the lower pressure connection pipe 33 with a specified pressure, after the upper and lower pressure connection pipes undergo plastic deformation, the suspension string wire 300 is prefabricated;

[0081] Step 2), installing a contact wire suspension string clip 100: sleeved the lower heart-shaped protective ring 35 into the semi-circular hooks 131 and 131' of the left half contact wire suspension string clip 1 and the right half contact wire suspension string clip 1' of the contact wire, and then insert the left half contact wire suspension string clip 1 and the right half contact wire suspension string clip 1' of the contact wire into each other to form the contact wire suspension string clip 100;

[0082] Step 3), installing a catenary suspension string clip 200: sleeved the upper heart-shaped protective ring 34 into the semi-circular hooks 231 and 231' of the left half catenary suspension string clip 2 and the right half catenary suspension string clip 2' of the catenary, and then insert the left half catenary suspension string clip 2 and the right half catenary suspension string clip 2' of the catenary into each other to form the catenary suspension string clip 200.

[0083] As Figures 1 - 3 shown, the installation process of the novel pressing method boltless integral suspension string of the utility model is as follows:

[0084] (1) Before installing the contact wire suspension clamp 100 and the carrier wire suspension clamp 200, first prefabricate the suspension wire 300: According to the design requirements, first measure the lengths of the main suspension wire and the short connection wire (i.e., the vertical and bent sections of the wire body 31 of the suspension wire), install the upper compression joint 32 and the lower compression joint 33 at the upper and lower ends of the wire body 31 respectively, and wind the upper end of the wire body 31 around the heart-shaped protective ring 34 once and then pass it through the upper compression joint 32. Similarly, wind the lower end of the wire body 31 around the lower heart-shaped protective ring 35 once and then pass it through the lower compression joint 33. Tighten the suspension wire on the compression platform, and ensure that there is a specified gap of 1 mm between the upper compression joint 32 and the upper heart-shaped protective ring 34, and ensure that there is a specified gap of 1 mm between the lower compression joint 33 and the lower heart-shaped protective ring 35. The compression die uses a longitudinal "8"-shaped compression die, and use the specified pressure to compress the upper compression joint 32 and the lower compression joint 33. After the upper and lower compression joints undergo plastic deformation, the suspension wire 300 with the upper and lower heart-shaped protective rings and the short connection wire at both ends is successfully prefabricated.

[0085] (2) Install the contact wire suspension clamp 100:

[0086] Put the lower heart-shaped protective ring 35 into the semi-circular hooks 131 and 131' of the left half contact wire suspension clamp 1 and the right half contact wire suspension clamp 1' of the contact wire, then match the clamping groove 6001 of the contact wire 600 with the clamping claw 141 of the left half contact wire suspension clamp 1 body, and then match the clamping claw 141' of the right half contact wire suspension clamp 1' body with the clamping groove 6001' of the contact wire 600, and use a special tool to push, so that the left half contact wire suspension clamp 1 and the right half contact wire suspension clamp 1' are inserted into each other and combined. Figure 9 、 10 As shown in, when inserting, the inclined surface of the first positioning pin 1111 moves along the inclined surface of the first positioning groove 1111', and the inclined surface of the second positioning pin 1121' moves along the inclined surface of the second positioning groove 1121, and keep pushing until the contact end faces of the left half contact wire suspension clamp 1 and the right half contact wire suspension clamp 1' are completely in contact. At this time, the first upper straight rack plate 1211 meshes with the first lower straight rack plate 1211', and the second upper straight rack plate 1221' meshes with the second lower straight rack plate 1221. During the insertion process, the sound of the straight rack plates meshing can be heard. After pushing in place, the two semi-circular hooks 131 and 131' are inserted into each other and combined into the contact wire suspension clamp hook 13. Finally, insert the lower end of the wire body 31 (i.e., the end of the short connection wire) into the first wire-passing round hole 18, and use a stamping machine to press the first short connection wire pressing hole 10, and the deformation of the clamp realizes the extrusion and pressing of the wire body 31. The lower heart-shaped protective ring 35 integrated with the suspension wire can swing freely in the contact wire suspension clamp hook 13. The left half contact wire suspension clamp 1 and the right half contact wire suspension clamp 1' also form a contact wire suspension clamp integral with complete functions (with four functions of clamping, anti-loosening, conducting electricity, and being repeatedly disassembled) and clamp the contact wire 600.

[0087] (3) Install the catenary suspension clamp 200:

[0088] Insert the upper heart-shaped protective ring 34 into the semi-circular hooks 231 and 231' of the left half catenary suspension clamp 2 and the right half catenary suspension clamp 2' of the catenary. Then place the catenary 700 into the semi-cylindrical bodies 241 and 241' of the body of the left half catenary suspension clamp 2 and the body of the right half catenary suspension clamp 2' of the catenary to fit them, and use a special tool to push so that the left half catenary suspension clamp 2 and the right half catenary suspension clamp 2' are inserted into each other and combined. Figure 18 、 19 As shown in the figure, when inserting, the inclined surface of the first positioning pin 2111 moves along the inclined surface of the first positioning groove 2111', and the inclined surface of the second positioning pin 2121' moves along the inclined surface of the second positioning groove 2121, and it is pushed until the contact end faces of the left half catenary suspension clamp 2 and the right half catenary suspension clamp 2' are in full contact. At this time, the lower straight rack plate 2211 meshes with the upper straight rack plate 2211', and the lower straight rack plate 2221' meshes with the upper straight rack plate 2221. During the insertion process, the sound of the meshing of the straight rack plates can be heard. After pushing in place, the two semi-circular hooks 231 and 231' are combined into the catenary suspension clamp hook 23 through mutual insertion. Finally, the upper end of the wire body 31 (i.e., the end of the upper short connection wire) is inserted into the first wire-passing round hole 28, and the short connection wire pressing hole 20' is punched by a stamping machine, and the deformation of the clamp realizes the extrusion and pressing of the wire body 31. The upper heart-shaped protective ring 34 integrally crimped with the suspension wire can swing freely in the catenary suspension clamp hook 23. The left half catenary suspension clamp 2 and the right half catenary suspension clamp 2' also form a complete-function (with four functions of clamping, anti-loosening, conducting electricity, and being repeatedly disassembled) integral catenary suspension clamp, and clamp the catenary 700.

[0089] The novel boltless integral suspension wire of the present utility model has the following functions:

[0090] 1. For the novel boltless integral suspension wire of the present utility model, the clamping principle is as follows: Each of the positioning pin and the positioning groove is provided with a corresponding inclined surface with equal slopes. When an external force (clamping force) is applied to make the two half suspension clamps insert into each other, the inclined surface of the positioning pin moves along the inclined surface of the positioning groove. The clamping force along the inclined surface can be decomposed into a horizontal component force and a vertical component force. The horizontal component force enables the two half suspension clamps to insert into each other, and the vertical component force enables the two half suspension clamps to approach each other until the contact surfaces of the two half suspension clamps are in contact, and finally clamp the contact wire or the catenary.

[0091] 2. The novel press-type boltless integral suspension string of the present utility model has a loosening prevention principle as follows: A loosening prevention device formed by the meshing of upper and lower straight rack plates is provided in both the boltless contact wire suspension string clamp and the boltless carrier wire suspension string clamp. The loosening prevention device can keep the two half suspension string clamps after clamping in a locked state, and the clamps cannot be loosened without external force pushing. The upper and lower straight rack plates are respectively arranged at both ends of the suspension string clamp, which can not only prevent loosening but also make the loosening prevention force evenly distributed on the clamp, improving the reliability of loosening prevention.

[0092] 3. The novel press-type boltless integral suspension string of the present utility model can be reused. The first threaded through hole for disassembly, the first threaded through hole for disassembly and the bolt cooperate to separate the two locked half suspension string clamps, and they can be reused after separation. When the clamp does not need to be disassembled, the threaded through hole for disassembly is blocked by a silicone rubber round head. When the clamp needs to be disassembled, the silicone rubber round head is pulled out, and a mating bolt is screwed into the first threaded through hole for disassembly and the first threaded through hole for disassembly. After the bolt is screwed into the threaded through hole for disassembly, its end abuts against the left end face or the right end face of the positioning pin. As the bolt is continuously screwed in, the two half suspension string clamps are subjected to a pair of forces with equal magnitude and opposite directions, so that the two half suspension string clamps are gradually separated, and the clamp can be reused.

[0093] 3. The contact wire suspension string clamp body and the carrier wire suspension string clamp body in the present utility model are both designed into a symmetrical structure. Among them, the first short connection wire pressing hole, the second short connection wire pressing hole, the first short connection wire pressing hole one, and the second short connection wire pressing hole two are formed by casting, and the first wire passing round hole, the first threaded through hole for disassembly, the wire passing round hole one, and the first threaded through hole for disassembly are post-processed. Only one set of casting molds is required during production, which can not only reduce the processing cost but also ensure good consistency of the produced clamps, making the force on the clamps more reasonable and the work more reliable.

[0094] 4. Since the integral suspension string is a current-carrying body and current passes through it. In the present utility model, through the hook and ring connection points, after the upper and lower ends of the wire body are pressed tightly, a fixed electrical contact is formed, providing a smooth bypass channel for the current of the integral suspension string. That is, it plays the role of equipotential at the connection point and improves the electrical conductivity reliability at the connection.

[0095] 5. In the boltless integral suspension string of the utility model, a longitudinal "8"-shaped pressing method is used for crimping, and a new type of mold is used for crimping. The mold makes the indentation parallel to the suspension string after crimping, and the indentation is between the main suspension string and the short connecting line (i.e., the two wire bodies), and there is a 1mm gap between the two wire bodies. When the suspension string is cut at the crimping point, the cross section is like an "8". After controlling the pressure, the cross section of the two wire bodies remains circular, thereby ensuring the best stress state of the stranded wire. In addition, because there is physical isolation (1mm gap) between the main suspension string and the short connecting line (i.e., the two wire bodies), the two wire bodies will not rub against each other at the upper and lower crimping tube outlets. Experiments have shown that the fatigue life of the integral suspension string using longitudinal "8"-shaped crimping is 1.5-2 times that of traditional transverse crimping, which greatly extends the service life of the integral suspension string.

[0096] The structure of the new type of boltless integral suspension string of the utility model determines that it has the above-mentioned clamping, anti-loosening, conductive and repeated disassembly functions. Because no bolts are used, the bolts are prevented from loosening during vibration, which greatly improves the reliability of the contact network system, reduces the processing cost, and greatly prolongs the service life. In addition, the new type of boltless integral suspension string of the utility model has the advantage of high static strength, prolongs the overhaul and replacement cycle of the overall suspension string, and reduces the operating cost. The fatigue test and static strength test are as follows:

[0097] (1) Fatigue test

[0098] The National Railway Product Quality Supervision and Inspection Center conducted a comparative test on the fatigue resistance of early imported and domestic integral hanging strings in accordance with Article 5.3.13 of TB / T2073-2020, Article 7 of TB / T2075-2020, and TJ / GD034-2020 "Interim Technical Conditions for Inspection of Integral Hanging Strings for Electrified Railway Contact Networks". The results are as follows:

[0099] Imported parts: When the fatigue times reach 800,000 times, the suspension string breaks at the crimping point.

[0100] Domestic parts: When the fatigue times reached 3.5 million times, the key parts were worn to the limit and the test could not continue.

[0101] Using the same test method and the same test device, we also conducted fatigue tests on the new type of pressure-type boltless integral suspension string. The results are as follows:

[0102] The utility model adopts a new type of pressure method for boltless integral suspension string: when the fatigue times reach 3.5 million times, the wear area of ​​key parts accounts for about 1 / 10 of the total wear area, and the test can still be continued; when the fatigue times reach 7 million times, the wear area accounts for about 3 / 10 of the total wear area, and it can continue to be used.

[0103] (2) Static strength test

[0104] Clamps used for domestic stamping integral suspension insulators: ≤8.5 kN

[0105] Clamps used for the novel non-bolt integral suspension insulators with novel pressing method of the utility model: ≥10.5 kN

[0106] The above two tests show that, in terms of both static strength and fatigue life, the novel non-bolt integral suspension insulators with novel pressing method are superior to the stamping integral suspension insulator devices. If the novel non-bolt integral suspension insulator devices are used during operation, the service life of the integral suspension insulator devices can be extended, and the maintenance and operation costs can be greatly reduced. In addition, the novel non-bolt integral suspension insulator devices do not need to be inspected during operation, and are particularly suitable for use in catenaries in special or complex environments.

[0107] In the utility model, at least one first threaded through-hole for disassembly, first wire-passing round hole, and short connection wire pressing hole are provided on the contact wire suspension insulator clamp, and at least one threaded through-hole one for disassembly, wire-passing round hole one, and short connection wire pressing hole are provided on the carrier wire suspension insulator clamp. In the embodiment, two short connection wire pressing holes are provided on both the carrier wire suspension insulator clamp and the contact wire suspension insulator clamp for the convenience of casting and cost saving in machining. In addition, two first threaded through-holes for disassembly, threaded through-hole one for disassembly, wire-passing round hole one, and first wire-passing round hole can be respectively provided in the utility model; for example, symmetrically arranged on two half clamps. When connecting with the suspension insulator wire, any one of the wire-passing round hole one or the first wire-passing round hole can be selected, and at the same time, the short connection wire pressing hole arranged opposite to the selected wire-passing round hole can be punched by using a stamping machine; during disassembly, only one of the threaded through-holes for disassembly can be selected, or two threaded through-holes for disassembly can be selected for simultaneous operation.

[0108] The embodiments described above are only for describing the preferred embodiments of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A contact wire string clamp (100), comprising a detachable left half string clamp (1) and a right half string clamp (1') for contact wire, wherein the left and right half string clamps (1, 1') for contact wire have the same structure and are inserted together with a positioning clamping device (11) and an anti-loosening device (12) with a vertical axis as a symmetry axis. The positioning clamping device (11) and the anti-loosening device (12) are located in the middle layer of the left and right half string clamps (1, 1') of the contact line. The positioning clamping device (11) is composed of a first positioning pin (1111) connected to the body of the left half string clamp (1) and extending horizontally to the right with a right-angled trapezoidal horizontal cross section and a first positioning groove (1111') matched therewith and located on the body of the right half string clamp (1') of the contact line, and a second positioning clamping pair (112) composed of a second positioning pin (1121') connected to the body of the right half string clamp (1') and extending horizontally to the left with a right-angled trapezoidal horizontal cross section and a second positioning groove (1121) matched therewith and located on the body of the left half string clamp (1), the two side straight surfaces of the first positioning pin (1111) and the second positioning pin (1121') are parallel and leave a proper gap. The anti-loosening device (12) is composed of a first upper spur rack plate (1211) arranged on the right side of the first positioning pin (1111) and located on the body of the left half of the contact line string clamp (1) and a first lower spur rack plate (1211') arranged on the right side of the first positioning groove (1111') and located below the body of the right half of the contact line string clamp (1') to form a first anti-loosening pair (121) and a second upper spur rack plate (1221') arranged on the left side of the second positioning pin (1121') and located on the body of the right half of the contact line string clamp (1') to form a second anti-loosening pair (121) and a second upper spur rack plate (1221') arranged on the left side of the second positioning pin (1121') and located below the body of the left half of the contact line string clamp (1) to form a second anti-loosening pair (121) The first and second upper spur rack plates (1211, 1221') are composed of a second anti-loosening pair (122), the plane where the tooth tops of the first and second upper spur rack plates (1211, 1221') are located is flush with the bottom surfaces of the first and second positioning pins (1111, 1121'), the plane where the tooth roots of the first and second lower spur rack plates (1211', 1221) are located is flush with the bottom surfaces of the second and first positioning grooves (1121, 1111'), the lower layer of the body of the contact line left half hanging string clamp (1) and the contact line right half hanging string clamp (1') are each provided with a clamping claw with the horizontal axis of the contact line hanging string clamp body as the symmetry axis, and the two clamping claws (141, 141') are respectively matched with the clamping groove of the clamped contact line, The outer shape of the middle and lower part of the contact line string clamp body is a rectangular parallelepiped, and the front side wall (16) is formed by plugging the side wall (161) of the second positioning groove (1121) connected to the contact line left half string clamp (1) body and the side wall (161') of the contact line right half string clamp (1') body matched therewith, and the rear side wall (17) is formed by plugging the side wall (171') of the first positioning groove (1111') connected to the contact line right half string clamp (1') body and the side wall (171) of the contact line left half string clamp (1) body matched therewith, and the insertion ends of the side walls (171', 161) of the first and second positioning grooves (1111', 1121) are both rectangular. Features: A first threaded through hole (15) for disassembly is provided on the body of the left half string clamp (1) of the contact line located at the left end of the second positioning groove (1121) and facing the left end face of the second positioning pin (1121') or on the body of the right half string clamp (1') of the contact line located at the right end face of the first positioning pin (1111). A first threading circular hole (18) is provided on the left end surface of the middle part of the contact line left half hanging string wire clamp (1) body or the right end surface of the middle part of the contact line right half hanging string wire clamp (1') body, the first threading circular hole (18) is not a through hole, and the first threading circular hole (18) is parallel to the first threaded through hole (15) for disassembly, A first short-line clamping hole (10, 10') is provided on the front side of the middle part of the contact line left half hanging string clamp (1) body and a second short-line clamping hole (10, 10') is provided on the rear side of the middle part of the contact line right half hanging string clamp (1') body, respectively. The first short-line clamping hole (10) is provided at a position corresponding to the position of the first threading circular hole (18) and both are located on the contact line left half hanging string clamp (1) or the contact line right half hanging string clamp (1'). The upper layer of the body of the left half hanging string clamp (1) and the right half hanging string clamp (1') of the contact line is provided with a semicircular hook (131, 131') with the horizontal axis of the contact line hanging string clamp body as the symmetry axis, and the two semicircular hooks (131, 131') constitute the contact line hanging string clamp hook (13). The left half hanging string clamp (1) and the right half hanging string clamp (1') of the contact line are both made of cast aluminum bronze with a material grade of C95500 through investment casting.

2. The contact wire suspension wire clamp according to claim 1, characterized in that: The tooth height of the teeth of the first upper spur rack plate (1211), the first lower spur rack plate (1211'), the second upper spur rack plate (1221'), and the second lower spur rack plate (1221) is 0.5 mm.

3. The contact wire suspension wire clamp according to claim 2, characterized in that: The diameter of the first threaded through hole (15) for disassembly is 5 mm.

4. The contact wire suspension wire clamp according to claim 3, characterized in that: The angle formed by the side straight surface and the side inclined surface of the first and second positioning pins (1111, 1121') is 5°, and the angle formed by the side straight surface and the side inclined surface of the first and second positioning grooves (1111', 1121) is 5°.

5. A catenary cable suspending string clamp (200), comprising a detachable left catenary cable suspending string clamp (2) and a right catenary cable suspending string clamp (2'), wherein the left and right catenary cable suspending string clamps (2, 2') have the same structure and are inserted together with a clamping positioning device (21) and a second anti-loosening device (22) with a vertical axis as a symmetry axis. The clamping and positioning device (21) and the second anti-loosening device (22) are located in the middle layer of the left and right half string clamps (2, 2') of the load-bearing cable. The clamping and positioning device (21) is composed of a positioning pin (2111) connected to the body of the left half string clamp (2) of the load-bearing cable and extending to the right with a horizontal cross section of a right-angled trapezoid, and a positioning groove (2111') matched with the positioning pin and located on the body of the right half string clamp (2') of the load-bearing cable. The first positioning pair (211) and the second clamping positioning pair (212) are composed of a second positioning pin (2121') connected to the body of the right half string clamp (2') of the load-bearing cable and extending horizontally to the left and having a horizontal cross-section of a right-angled trapezoid, and a second positioning groove (2121) located on the body of the left half string clamp (2) of the load-bearing cable and matching it. The two side straight surfaces of the first positioning pin (2111) and the second positioning pin (2121') are parallel and leave an appropriate gap. The anti-loosening device 2 (22) is composed of a lower straight rack plate 1 (2211) arranged on the right side of the positioning pin 1 (2111) and located on the body of the left half string clamp (2) of the load-bearing cable, and an upper straight rack plate 1 (2211') arranged on the right side of the positioning groove 1 (2111') and located on the body of the right half string clamp (2') of the load-bearing cable to cooperate with it, and an anti-loosening pair 1 (221) composed of a lower straight rack plate 2 (2221') arranged on the left side of the positioning pin 2 (2121') and located on the body of the right half string clamp (2') of the load-bearing cable. 1') and an anti-loosening pair 2 (222) formed by an upper straight rack plate 2 (2221) which is arranged on the left side of the positioning groove 2 (2121) and located on the body of the left half string clamp (2) of the load-bearing cable, wherein the plane where the top of the teeth of the lower straight rack plates 1 and 2 (2211, 2221') are located is flush with the top surface of the positioning pins 1 and 2 (2111, 2121'), and the plane where the roots of the teeth of the upper straight rack plates 1 and 2 (2211', 2221) are located is flush with the top surface of the positioning grooves 2 and 1 (2121, 2111'), The upper layers of the bodies of the left half string clamp (2) and the right half string clamp (2') of the load-bearing cable are provided with semi-cylindrical bodies (241, 241') with the transverse axis of the load-bearing cable string clamp body as the axis of symmetry. The inner hole of the cylindrical body formed by the two semi-cylindrical bodies (241, 241') matches the load-bearing cable. The outer shape of the middle and upper part of the body of the catenary cable string clamp is a rectangular parallelepiped, and its rear side wall (26) is formed by plugging the side wall (261) of the second positioning groove (2121) connected to the body of the left half of the catenary cable string clamp (2) and the side wall (261') of the body of the right half of the catenary cable string clamp (2') matched therewith, and its front side wall (27) is formed by plugging the side wall (271') of the first positioning groove (2111') connected to the body of the right half of the catenary cable string clamp (2') and the side wall (271') of the body of the left half of the catenary cable string clamp (2) matched therewith, and the insertion ends of the side walls (271', 261) of the first and second positioning grooves (2111', 2121) are both rectangular, Features: A threaded through hole (25) for disassembly is provided on the body of the left half string clamp (2) of the load-bearing cable located at the left end of the second positioning groove (2121) and facing the left end face of the second positioning pin (2121') or on the body of the right half string clamp (2') of the load-bearing cable located at the right end of the first positioning groove (2111') and facing the right end face of the first positioning pin (2111). A threading circular hole (28) is provided on the left end surface of the middle part of the body of the left half of the load-bearing cable string clamp (2) or the right end surface of the middle part of the body of the right half of the load-bearing cable string clamp (2'). The threading circular hole (28) is not a through hole. The threading circular hole (28) is parallel to the threaded through hole (25) for disassembly. The front side surface of the middle part of the body of the left half of the supporting cable string clamp (2) and the rear side surface of the middle part of the body of the right half of the supporting cable string clamp (1') are respectively provided with short connection line clamping holes one and two (20, 20'), and the setting position of the short connection line clamping hole one (20) corresponds to the position of the threading circular hole one (28) and both are located on the left half of the supporting cable string clamp (2) or the right half of the supporting cable string clamp (2'). The lower layer of the body of the left half of the load-bearing cable string clamp (2) and the right half of the load-bearing cable string clamp (2') is respectively provided with a load-bearing cable semicircular hook (231, 231') with the horizontal axis of the load-bearing cable string clamp body as the symmetry axis, and the two load-bearing cable semicircular hooks (231, 231') constitute the load-bearing cable string clamp hook (23), and the left half of the load-bearing cable string clamp (2) and the right half of the load-bearing cable string clamp (2') are both made of cast aluminum bronze with a material grade of C95500 through investment casting.

6. The catenary cable chord clamp according to claim 5, characterized in that: The inner wall of the semi-cylindrical body (241, 241') is a smooth surface.

7. The catenary cable suspender string clamp according to claim 6, characterized in that: The tooth height of the teeth of the lower spur rack plate 1 (2211), the upper spur rack plate 1 (2211'), the lower spur rack plate 2 (2221'), and the upper spur rack plate 2 (2221) is 0.5 mm.

8. The catenary cable suspender string clamp according to claim 7, characterized in that: The diameter of the disassembly threaded through hole 1 (25) is 5 mm.

9. The catenary cable chord clamp according to claim 8, characterized in that: The angle formed by the side straight surface and the side inclined surface of the first and second positioning pins (2111, 2121') is 5°, and the angle formed by the side straight surface and the side inclined surface of the first and second positioning grooves (2111', 2121) is 5°.

10. A novel pressure-type boltless integral suspension string (1000), characterized in that: The invention comprises a contact wire suspension string clamp (100) according to any one of claims 1 to 4, a load-bearing wire suspension string clamp (200) according to any one of claims 5 to 9, and a suspension string (300), wherein: The suspension string (300) comprises a wire body (31), an upper compression tube (32) and a lower compression tube (33), an upper heart-shaped protective ring (34), and a lower heart-shaped protective ring (35). The upper heart-shaped protective ring (34) is sleeved on a load-bearing wire suspension string clamp hook (23) of a load-bearing wire suspension string clamp (200), and the lower heart-shaped protective ring (35) is sleeved on a contact wire suspension string clamp hook (13) of a contact wire suspension string clamp (100). The upper end of the wire body (31) passes around the upper heart-shaped protective ring (34) and is inserted into a threading circular hole (28) and is pressed and compacted through a short-connection pressing hole (20). The lower end of the wire body (31) passes around the lower heart-shaped protective ring (35) and is inserted into a first threading circular hole (18) and is pressed and compacted through a first short-connection pressing hole (10). The upper compression tube (34) is sleeved on a load-bearing wire suspension string clamp hook (23) of a load-bearing wire suspension string clamp (200). The tube (32) is close to the end of the upper heart-shaped protective ring (34) and is wrapped and pressed onto the two folded wire bodies. The lower pressing tube (33) is close to the end of the lower heart-shaped protective ring (35) and is wrapped and pressed onto the two folded wire bodies. The two wire bodies wrapped and pressed by the upper pressing tube (32) are spaced 1 mm apart, and the two wire bodies wrapped and pressed by the lower pressing tube (33) are spaced 1 mm apart. The indentation (321) of the upper pressing tube (32) and the indentation (331) of the lower pressing tube (33) are parallel to the wire bodies at the crimped position. The indentation of the upper pressing tube (32) is opposite to the gap between the two wire bodies wrapped and pressed by the upper pressing tube (32), and the indentation of the lower pressing tube (33) is opposite to the gap between the two wire bodies wrapped and pressed by the lower pressing tube (33).

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