Railway contact network positioning clamp device

Abstract

The invention discloses a railway contact network positioning wire clamp device, comprising a main clamp and a secondary clamp, the upper parts of the main clamp and the secondary clamp are hinged, the main clamp is fixed on a bracket; the lower part of the main clamp is processed with a first contact wire positioning groove, the upper end of the first contact wire positioning groove is provided with a rubber baffle; the lower end of the first contact wire positioning groove is provided with a hook plate; the secondary clamp is processed with a second contact wire positioning groove, the upper part of the second contact wire positioning groove is hinged with a movable clamp, the side wall of the second contact wire positioning groove is processed with a threaded through hole, an adjusting stud is installed in the threaded through hole, one end of the adjusting stud passes through the threaded through hole and is provided with an adjusting cap, the other end abuts against the movable clamp, and the bottom of the movable clamp is also provided with a hook plate. The invention is easy to install and disassemble, significantly reduces the labor intensity of construction personnel, is convenient for maintenance, and has a good use effect.

Description

Technical Field

[0001] The invention belongs to the technical field of power grid equipment, and in particular relates to a railway contact network positioning wire clamp device. Background Art

[0002] As a major means of transportation, railway transportation safety is the primary consideration and issue to be addressed. As an important component of the current electrified railway, the operating safety of the contact network directly affects the railway power supply and driving safety. Since most railway routes have to cross complex terrains such as hills and mountains, trees and weeds grow under such terrain, and trees that grow too lushly can easily endanger the safety of the contact network along the railway. Therefore, timely detection and discovery of trees that may cause harm to the contact network is a key technology to ensure railway transportation safety. Most traditional methods for detecting dangerous trees on railways are to observe and identify them through inspection vehicles and human eyes. This method not only consumes a lot of manpower and material resources, but also has problems such as low efficiency and failure to detect in time. Research on methods and devices for automatic detection of dangerous trees on the contact network can meet social application needs and promote the development of safe railway transportation. Summary of the invention

[0003] The present invention provides a railway contact network positioning wire clamp device, comprising a main clamp and a sub-clamp, the upper parts of the main clamp and the sub-clamp are hinged, so that the sub-clamp can rotate around the hinge position, the upper end of the main clamp is provided with a threaded hole, a connecting stud is provided in the threaded hole, the connecting stud is used to fix the main clamp on the bracket, the middle part of the connecting stud is provided with a hexagonal boss part, the hexagonal boss part is used to screw the force-bearing part of the connecting stud to rotate, the two sides of the hexagonal boss part are external thread parts with opposite thread directions, and the two external thread parts are detachably connected to the main clamp and the bracket respectively; the lower part of the main clamp is processed with a first contact wire positioning groove, the first contact wire positioning groove A rubber baffle is provided at the upper end of the groove, one end of the rubber baffle is fixed on the side wall of the main clamp, and the other end is bent downward to form an arc; a hook plate is provided at the lower end of the first contact line positioning groove, which is used to hook the contact line to prevent the contact line from falling downward; a second contact line positioning groove is processed at a position opposite to the first contact line positioning groove on the auxiliary clamp, a movable clamp is hinged on the upper part of the second contact line positioning groove, a threaded through hole is processed on the side wall of the second contact line positioning groove, an adjusting stud is installed in the threaded through hole, one end of the adjusting stud passes through the threaded through hole and is provided with an adjusting cap, and the other end abuts against the movable clamp, and the hook plate is also provided at the bottom of the movable clamp;

[0004] Wherein, the preparation method of the rubber baffle is:

[0005] 1) preparing an aqueous solution of iridium trichloride and cerium trichloride, adding ammonia water dropwise to the aqueous solution of iridium trichloride and cerium trichloride under stirring until no precipitation is generated, stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400 to 450° C. for more than 1 hour to obtain a composite oxide;

[0006] 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, adding the composite oxide to the ethanol solution of N-phenyl-1,4-phenylenediamine, stirring the solution to uniformly disperse the composite oxide, then bathing the solution in a water bath to maintain a constant temperature of 65±5° C., adding methyl isobutyl ketone to the solution under stirring, continuing to stir for more than 10 hours after the addition is completed, separating the solid from the liquid after the stirring is completed, and drying the solid phase to obtain a solid phase A;

[0007] 3) The styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine and sulfur are uniformly mixed and kneaded on a double-roll mill for 10 to 15 minutes. The vulcanization curve is tested at 150° C. to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, and obtain the rubber baffle.

[0008] Furthermore, the side wall of the hook plate is an inclined surface with a normal line obliquely pointing upward, and the surface of the inclined surface is processed with anti-slip teeth.

[0009] Furthermore, the adjusting stud includes a matching portion and a clamping portion, the outside of the matching portion is processed with an external thread, the matching portion is threadedly matched with the threaded through hole, the front end of the matching portion is processed with a square cross-section through hole, the inner surface of the square cross-section through hole is smooth, the clamping portion includes a clamping block at the front end and a sliding block at the rear end, the sliding block is installed in the square cross-section through hole and the side wall of the sliding block is in contact with the inner wall of the square cross-section through hole, the sliding block can slide in the square cross-section through hole, the sliding block and the bottom of the square cross-section through hole are directly connected with a compression spring, the compression spring is in a compressed state, and the clamping block rests on the movable splint.

[0010] Furthermore, in the aqueous solution of iridium trichloride and cerium trichloride, the mass percentage of iridium trichloride is 1% to 2%, the mass percentage of cerium trichloride is 1% to 4%; and the mass percentage of solute in the ammonia water is 25%.

[0011] Furthermore, in the ethanol solution of N-phenyl-1,4-phenylenediamine, the concentration of N-phenyl-1,4-phenylenediamine is 2-5 mg / mL, the solvent is ethanol, the solid-liquid mass ratio of the composite oxide added to the ethanol solution of N-phenyl-1,4-phenylenediamine is solid / liquid=1:6-8; the mass of the methyl isobutyl ketone added is 2-3 times the mass of N-phenyl-1,4-phenylenediamine in the solution.

[0012] Furthermore, the styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are calculated in parts by weight: 100 parts of styrene-butadiene rubber, 15-20 parts of carbon black, 8-10 parts of the solid phase A, 3-5 parts of zinc oxide powder, 1-1.5 parts of stearic acid, 0.4-0.5 parts of 2-mercaptobenzothiazole, 0.1-0.2 parts of tetramethylthiuram disulfide, 0.4-0.5 parts of 1,3-diphenylguanidine, and 2-3 parts of sulfur.

[0013] The beneficial effects of the present invention are:

[0014] 1. The present invention is easy to install and disassemble, significantly reduces the labor intensity of construction workers, is convenient for maintenance, and has good use effect;

[0015] 2. The present invention uses rubber to fix the contact wire, which reduces damage to the contact wire and makes the contact wire less prone to wear. However, given that the rubber material close to the contact wire is prone to aging, the present application optimizes the rubber preparation process, improves the aging resistance of the rubber, and thereby increases the service life of the device.

[0016] Instruction Manual

[0017] Figure 1 This is a schematic diagram of the structure of the device described in this application;

[0018] Figure 2 It is a structural schematic diagram of the optimization scheme of the adjusting stud;

[0019] Figure 3 The following is a comparison chart of the tensile strength and aging resistance of the rubber baffles prepared in various embodiments and comparative examples. DETAILED DESCRIPTION

[0020] The following is a detailed description with reference to the embodiments:

[0021] like Figure 1As shown, a railway contact network positioning wire clamp device includes a main clamp 1 and a sub-clamp 2. The upper parts of the main clamp 1 and the sub-clamp 2 are hinged so that the sub-clamp 2 can rotate around the hinge position. A threaded hole 3 is provided at the upper end of the main clamp 1, and a connecting stud 4 is provided in the threaded hole 3. The connecting stud 4 is used to fix the main clamp 1 on the bracket. A hexagonal boss portion 5 is provided in the middle of the connecting stud 4. The hexagonal boss portion 5 is used to twist the force-bearing portion of the connecting stud to rotate. The two sides of the hexagonal boss portion are external threaded portions with opposite thread directions. The two external threaded portions are detachably connected to the main clamp and the bracket respectively; in this way, during installation, twisting the hexagonal boss portion can simultaneously realize the installation connection of the connecting stud 4 and the main clamp 1, and the connecting stud 4 and the bracket, which is convenient for installation. The lower part of the main clamp 1 is processed with a first contact line positioning groove 6, and the upper end of the first contact line positioning groove 6 is provided with a rubber baffle 7, one end of the rubber baffle 7 is fixed on the side wall of the main clamp 1, and the other end is bent downward to form an arc, which wraps around and protects the contact line, reduces the wear of the contact line caused by axial tension, and can also reduce the pressure damage to the contact line by the clamp itself, preventing the contact line from wearing. The lower end of the first contact line positioning groove 6 is provided with a hook plate 8, which is used to hook the contact line to prevent the contact line from falling downward. The side wall of the hook plate 8 is an inclined surface with the normal line obliquely upward, and the surface of the inclined surface can be processed with anti-slip teeth. A second contact line positioning groove 9 is machined on the auxiliary clamp 2 at a position opposite to the first contact line positioning groove 6, a movable splint 10 is hinged on the upper part of the second contact line positioning groove 9, a threaded through hole is machined on the side wall of the second contact line positioning groove 9, an adjusting stud 11 is installed in the threaded through hole, one end of the adjusting stud 11 passes through the threaded through hole and is provided with an adjusting cap 12, and the other end abuts against the movable splint 10, and the bottom of the movable splint 10 is also provided with the hook plate 8. In order to prevent the adjusting stud 11 from loosening during long-term use, causing the movable splint 10 to fail to tighten the contact line, as a preferred solution, the structure of the adjusting stud is optimized, such as Figure 2As shown, the adjusting stud 11 includes a matching portion 13 and a pressing portion 14. The outer surface of the matching portion 13 is processed with an external thread, and the matching portion 13 is threadedly matched with the threaded through hole. The front end of the matching portion 13 is processed with a square cross-section through hole 15, and the inner surface of the square cross-section through hole 15 is smooth. The pressing portion 14 includes a pressing block 16 at the front end and a sliding block 17 at the rear end. The sliding block 17 is installed in the square cross-section through hole 15 and the side wall of the sliding block is in contact with the inner wall of the square cross-section through hole. The sliding block 17 can slide in the square cross-section through hole 15. The sliding block and the bottom of the square cross-section through hole are directly connected with a compression spring 18. The compression spring 18 is in a compressed state, and the pressing block 16 is against the movable clamp. The elastic force of the compression spring 18 not only gives a thrust to the movable splint, so that the movable splint can still maintain a certain clamping force on the contact line when the adjusting stud 11 is slightly loose; and the compression spring 18 has an axial thrust on the mating part 13, which has a self-locking effect on the threaded fit between the adjusting stud 11 and the threaded through hole, preventing the adjusting stud 11 from loosening.

[0022] The design of the rubber baffle 7 can certainly reduce the damage of the device to the contact line, but considering that the rubber material close to the contact line is prone to aging, the present application optimizes the rubber preparation process. In order to verify the advantages of the rubber preparation process of the present application, the following examples and comparative examples are designed:

[0023] Example 1

[0024] A method for preparing a rubber baffle 7 comprises the following steps:

[0025] 1) preparing an aqueous solution of iridium trichloride and cerium trichloride, wherein the mass percentage of iridium trichloride in the aqueous solution of iridium trichloride and cerium trichloride is 1%, and the mass percentage of cerium trichloride is 1%; adding ammonia water dropwise to the aqueous solution of iridium trichloride and cerium trichloride under stirring at 50 r / min until no precipitation is generated, and the mass percentage of solute in the ammonia water is 25%; stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400° C. for 1 hour to obtain a composite oxide;

[0026] 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, wherein the concentration of N-phenyl-1,4-phenylenediamine in the ethanol solution is 2 mg / mL and the solvent is ethanol; adding the composite oxide to the ethanol solution of N-phenyl-1,4-phenylenediamine at a solid / liquid mass ratio of 1:6, stirring the solution at 60 r / min to uniformly disperse the composite oxide, then thermostating the solution to a temperature range of 65±5° C. in a water bath, adding methyl isobutyl ketone to the solution under stirring at 60 r / min, wherein the mass of the methyl isobutyl ketone added is twice the mass of N-phenyl-1,4-phenylenediamine in the solution; continuing stirring for 10 h after the addition is completed, separating the solid and liquid after the stirring is completed, and drying the solid phase to obtain a solid phase A;

[0027] 3) Styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are uniformly mixed. The above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 15 parts of carbon black, 8 parts of the solid phase A, 3 parts of zinc oxide powder, 1 part of stearic acid, 0.4 parts of 2-mercaptobenzothiazole, 0.1 parts of tetramethylthiuram disulfide, 0.4 parts of 1,3-diphenylguanidine, and 2 parts of sulfur. Mixing is performed on a two-roll mill for 15 minutes, and the vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, and obtain the rubber baffle.

[0028] Example 2

[0029] A method for preparing a rubber baffle 7 comprises the following steps:

[0030] 1) preparing an aqueous solution of iridium trichloride and cerium trichloride, wherein the mass percentage of iridium trichloride in the aqueous solution of iridium trichloride and cerium trichloride is 1%, and the mass percentage of cerium trichloride is 2%; adding ammonia water dropwise to the aqueous solution of iridium trichloride and cerium trichloride under stirring at 50 r / min until no precipitation is generated, and the mass percentage of solute in the ammonia water is 25%; stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400° C. for 1 hour to obtain a composite oxide;

[0031] 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, wherein the concentration of N-phenyl-1,4-phenylenediamine in the ethanol solution is 3 mg / mL and the solvent is ethanol; adding the composite oxide to the ethanol solution of N-phenyl-1,4-phenylenediamine at a solid / liquid mass ratio of 1:6, stirring the solution at 60 r / min to uniformly disperse the composite oxide, then thermostating the solution to a temperature range of 65±5° C. in a water bath, adding methyl isobutyl ketone to the solution under stirring at 60 r / min, wherein the mass of the methyl isobutyl ketone added is twice the mass of N-phenyl-1,4-phenylenediamine in the solution; continuing stirring for 10 h after the addition is completed, separating the solid and the liquid after the stirring is completed, and drying the solid phase to obtain a solid phase A;

[0032] 3) Styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are uniformly mixed. The above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 18 parts of carbon black, 9 parts of the solid phase A, 4 parts of zinc oxide powder, 1.2 parts of stearic acid, 0.4 parts of 2-mercaptobenzothiazole, 0.1 parts of tetramethylthiuram disulfide, 0.4 parts of 1,3-diphenylguanidine, and 2 parts of sulfur. Mixing is performed on a two-roll mill for 15 minutes, and the vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, and obtain the rubber baffle.

[0033] Example 3

[0034] A method for preparing a rubber baffle 7 comprises the following steps:

[0035] 1) preparing an aqueous solution of iridium trichloride and cerium trichloride, wherein the mass percentage of iridium trichloride in the aqueous solution of iridium trichloride and cerium trichloride is 2%, and the mass percentage of cerium trichloride is 3%; adding ammonia water dropwise to the aqueous solution of iridium trichloride and cerium trichloride under stirring at 50 r / min until no precipitation is generated, and the mass percentage of solute in the ammonia water is 25%; stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400° C. for 1 hour to obtain a composite oxide;

[0036] 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, wherein the concentration of N-phenyl-1,4-phenylenediamine in the ethanol solution is 4 mg / mL and the solvent is ethanol; adding the composite oxide to the ethanol solution of N-phenyl-1,4-phenylenediamine at a solid / liquid mass ratio of 1:6, stirring the solution at 60 r / min to uniformly disperse the composite oxide, then thermostating the solution to a temperature range of 65±5° C. in a water bath, adding methyl isobutyl ketone to the solution under stirring at 60 r / min, wherein the mass of the methyl isobutyl ketone added is twice the mass of N-phenyl-1,4-phenylenediamine in the solution; continuing stirring for 10 h after the addition is completed, separating the solid and the liquid after the stirring is completed, and drying the solid phase to obtain a solid phase A;

[0037] 3) Styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are uniformly mixed. The above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 18 parts of carbon black, 9 parts of the solid phase A, 4 parts of zinc oxide powder, 1.4 parts of stearic acid, 0.5 parts of 2-mercaptobenzothiazole, 0.2 parts of tetramethylthiuram disulfide, 0.5 parts of 1,3-diphenylguanidine, and 3 parts of sulfur. Mixing is performed on a two-roll mill for 15 minutes, and the vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, and obtain the rubber baffle.

[0038] Example 4

[0039] A method for preparing a rubber baffle 7 comprises the following steps:

[0040] 1) preparing an aqueous solution of iridium trichloride and cerium trichloride, wherein the mass percentage of iridium trichloride in the aqueous solution of iridium trichloride and cerium trichloride is 2%, and the mass percentage of cerium trichloride is 4%; adding ammonia water dropwise to the aqueous solution of iridium trichloride and cerium trichloride under stirring at 50 r / min until no precipitation is generated, and the mass percentage of solute in the ammonia water is 25%; stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400° C. for 1 hour to obtain a composite oxide;

[0041] 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, wherein the concentration of N-phenyl-1,4-phenylenediamine in the ethanol solution is 5 mg / mL and the solvent is ethanol; adding the composite oxide to the ethanol solution of N-phenyl-1,4-phenylenediamine at a solid-liquid mass ratio of solid / liquid = 1:6, stirring the solution at 60 r / min to uniformly disperse the composite oxide, then thermostating the solution to a temperature range of 65±5° C. in a water bath, adding methyl isobutyl ketone to the solution under stirring at 60 r / min, wherein the mass of the methyl isobutyl ketone added is twice the mass of N-phenyl-1,4-phenylenediamine in the solution; continuing stirring for 10 h after the addition is completed, separating the solid and liquid after the stirring is completed, and drying the solid phase to obtain a solid phase A;

[0042] 3) Styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are uniformly mixed. The above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 20 parts of carbon black, 10 parts of the solid phase A, 5 parts of zinc oxide powder, 1.5 parts of stearic acid, 0.5 parts of 2-mercaptobenzothiazole, 0.2 parts of tetramethylthiuram disulfide, 0.5 parts of 1,3-diphenylguanidine, and 3 parts of sulfur. Mixing is performed on a two-roll mill for 15 minutes, and the vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, and obtain the rubber baffle.

[0043] Comparative Example 1

[0044] A method for preparing a rubber baffle 7 comprises the following steps: uniformly mixing styrene-butadiene rubber, carbon black, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine and sulfur, wherein the above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 18 parts of carbon black, 4 parts of zinc oxide powder, 1.4 parts of stearic acid, 0.5 parts of 2-mercaptobenzothiazole, 0.2 parts of tetramethylthiuram disulfide, 0.5 parts of 1,3-diphenylguanidine and 3 parts of sulfur. Mixing is performed on a double-roll mill for 15 minutes, and a vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, to obtain the rubber baffle described in this comparative example.

[0045] Comparative Example 2

[0046] A method for preparing a rubber baffle 7 comprises the following steps:

[0047] 1) preparing an aqueous solution of iridium trichloride and cerium trichloride, wherein the mass percentage of iridium trichloride in the aqueous solution of iridium trichloride and cerium trichloride is 2%, and the mass percentage of cerium trichloride is 3%; adding ammonia water dropwise to the aqueous solution of iridium trichloride and cerium trichloride under stirring at 50 r / min until no precipitation is generated, and the mass percentage of solute in the ammonia water is 25%; stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400° C. for 1 hour to obtain a composite oxide;

[0048] 2) Styrene-butadiene rubber, carbon black, the composite oxide, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are uniformly mixed. The above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 18 parts of carbon black, 9 parts of the composite oxide, 4 parts of zinc oxide powder, 1.4 parts of stearic acid, 0.5 parts of 2-mercaptobenzothiazole, 0.2 parts of tetramethylthiuram disulfide, 0.5 parts of 1,3-diphenylguanidine, and 3 parts of sulfur. Mixing is performed on a two-roll mill for 15 minutes, and the vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, to obtain the rubber baffle described in this comparative example.

[0049] Comparative Example 3

[0050] A method for preparing a rubber baffle 7 comprises the following steps:

[0051] 1) preparing an aqueous solution of iridium trichloride, wherein the mass percentage of iridium trichloride in the aqueous solution of iridium trichloride is 2%; adding ammonia water dropwise to the aqueous solution of iridium trichloride under stirring at 50 r / min until no precipitation is generated, and the mass percentage of solute in the ammonia water is 25%; stopping stirring, separating the solid from the liquid, and calcining the solid phase at a temperature range of 400° C. for 1 hour to obtain Ir oxide powder;

[0052] 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, wherein the concentration of N-phenyl-1,4-phenylenediamine in the ethanol solution is 4 mg / mL and the solvent is ethanol; adding the Ir oxide powder to the ethanol solution of N-phenyl-1,4-phenylenediamine at a solid-liquid mass ratio of solid / liquid = 1:6, stirring the solution at 60 r / min to uniformly disperse the Ir oxide powder, then thermostating the solution to a temperature range of 65±5° C. in a water bath, adding methyl isobutyl ketone to the solution under stirring at 60 r / min, wherein the mass of the methyl isobutyl ketone added is twice the mass of N-phenyl-1,4-phenylenediamine in the solution; continuing stirring for 10 h after the addition is completed, separating the solid and liquid after the stirring is completed, and drying the solid phase to obtain a solid phase A;

[0053] 3) Styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are uniformly mixed. The above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 18 parts of carbon black, 9 parts of the solid phase A, 4 parts of zinc oxide powder, 1.4 parts of stearic acid, 0.5 parts of 2-mercaptobenzothiazole, 0.2 parts of tetramethylthiuram disulfide, 0.5 parts of 1,3-diphenylguanidine, and 3 parts of sulfur. Mixing is performed on a two-roll mill for 15 minutes, and the vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, to obtain the rubber baffle described in this comparative example.

[0054] Comparative Example 4

[0055] A method for preparing a rubber baffle 7 comprises the following steps:

[0056] 1) preparing an aqueous solution of cerium trichloride, wherein the mass percentage of cerium trichloride in the aqueous solution of cerium trichloride is 3%; adding ammonia water dropwise to the aqueous solution of cerium trichloride under stirring at 50 r / min until no precipitation is generated, and the mass percentage of solute in the ammonia water is 25%; stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400° C. for 1 hour to obtain Ce oxide powder;

[0057] 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, wherein the concentration of N-phenyl-1,4-phenylenediamine in the ethanol solution is 4 mg / mL and the solvent is ethanol; adding the Ce oxide powder to the ethanol solution of N-phenyl-1,4-phenylenediamine at a solid-liquid mass ratio of solid / liquid = 1:6, stirring the solution at 60 r / min to uniformly disperse the Ce oxide powder, then thermostating the solution to a temperature range of 65±5° C. in a water bath, adding methyl isobutyl ketone to the solution under stirring at 60 r / min, wherein the mass of the methyl isobutyl ketone added is twice the mass of N-phenyl-1,4-phenylenediamine in the solution; continuing stirring for 10 h after the addition is completed, performing solid-liquid separation after the stirring is completed, and drying the solid phase to obtain a solid phase A;

[0058] 3) Styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine, and sulfur are uniformly mixed. The above components are calculated by weight as follows: 100 parts of styrene-butadiene rubber, 18 parts of carbon black, 9 parts of the solid phase A, 4 parts of zinc oxide powder, 1.4 parts of stearic acid, 0.5 parts of 2-mercaptobenzothiazole, 0.2 parts of tetramethylthiuram disulfide, 0.5 parts of 1,3-diphenylguanidine, and 3 parts of sulfur. Mixing is performed on a two-roll mill for 15 minutes, and the vulcanization curve is tested at 150°C to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, to obtain the rubber baffle described in this comparative example.

[0059] Example 5

[0060] The rubber baffles prepared in the above examples and comparative examples were subjected to aging tests respectively. The testing method was as follows: the tensile strength of the rubber was tested before aging, then the rubber was aged at 100°C for 48 hours, and then the tensile strength of the rubber after aging was tested. The difference between the two tensile strengths was used to characterize the aging resistance of the rubber. Figure 3 As shown in the figure, the rubber prepared in the present application has excellent aging resistance, and the tensile strength of the rubber changes little after aging at 100°C for 48 hours. Comparison of Example 3 and the comparative examples shows that the addition of the treated Ir-Ce composite oxide can further improve the tensile strength and aging resistance of the rubber, which may be due to the strengthening effect of the Ir-Ce composite oxide promoting the internal cross-linking of the rubber.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A railway contact network positioning wire clamp device, characterized in that: It comprises a main clamp and a sub-clamp, the upper parts of the main clamp and the sub-clamp are hinged so that the sub-clamp can rotate around the hinge position, the upper end of the main clamp is provided with a threaded hole, a connecting stud is provided in the threaded hole, the connecting stud is used to fix the main clamp on the bracket, a hexagonal boss is provided in the middle of the connecting stud, the hexagonal boss is used to screw the force-bearing part of the connecting stud to rotate, the two sides of the hexagonal boss are external thread parts with opposite thread directions, the two external thread parts are detachably connected to the main clamp and the bracket respectively; the lower part of the main clamp is processed with a first contact line positioning groove, the upper end of the first contact line positioning groove is provided with a rubber baffle , one end of the rubber baffle is fixed on the side wall of the main clamp, and the other end is bent downward to form an arc; a hook plate is provided at the lower end of the first contact line positioning groove, which is used to hook the contact line to prevent the contact line from falling downward; a second contact line positioning groove is processed at a position opposite to the first contact line positioning groove on the auxiliary clamp, a movable clamp is hinged on the upper part of the second contact line positioning groove, a threaded through hole is processed on the side wall of the second contact line positioning groove, an adjusting stud is installed in the threaded through hole, one end of the adjusting stud passes through the threaded through hole and is provided with an adjusting cap, and the other end abuts against the movable clamp, and the bottom of the movable clamp is also provided with the hook plate; Wherein, the preparation method of the rubber baffle is: 1) preparing an aqueous solution of iridium trichloride and cerium trichloride, adding ammonia water dropwise to the aqueous solution of iridium trichloride and cerium trichloride under stirring until no precipitation is generated, stopping stirring, separating the solid and the liquid, and calcining the solid phase at a temperature range of 400 to 450° C. for more than 1 hour to obtain a composite oxide; 2) preparing an ethanol solution of N-phenyl-1,4-phenylenediamine, adding the composite oxide to the ethanol solution of N-phenyl-1,4-phenylenediamine, stirring the solution to uniformly disperse the composite oxide, then bathing the solution in a water bath to maintain a constant temperature of 65±5° C., adding methyl isobutyl ketone to the solution under stirring, continuing to stir for more than 10 hours after the addition is completed, separating the solid from the liquid after the stirring is completed, and drying the solid phase to obtain a solid phase A; 3) The styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine and sulfur are uniformly mixed and kneaded on a double-roll mill for 10 to 15 minutes. The vulcanization curve is tested at 150° C. to obtain T 90 Value, the mixed rubber is vulcanized and pressed at 150℃, and the pressing time is T 90 value, and obtain the rubber baffle.

2. A railway contact network positioning clamp device according to claim 1, characterized in that: The side wall of the hook plate is an inclined surface with a normal line obliquely upward, and the surface of the inclined surface is processed with anti-slip teeth.

3. A railway contact network positioning clamp device according to claim 1, characterized in that: The adjusting stud includes a matching part and a clamping part, the outside of the matching part is processed with an external thread, the matching part is threadedly matched with the threaded through hole, the front end of the matching part is processed with a square cross-section through hole, the inner surface of the square cross-section through hole is smooth, the clamping part includes a clamping block at the front end and a sliding block at the rear end, the sliding block is installed in the square cross-section through hole and the side wall of the sliding block is in contact with the inner wall of the square cross-section through hole, the sliding block can slide in the square cross-section through hole, the sliding block and the bottom of the square cross-section through hole are directly connected with a compression spring, the compression spring is in a compressed state, and the clamping block rests against the movable splint.

4. A railway contact network positioning clamp device according to claim 1, characterized in that: In the aqueous solution of iridium trichloride and cerium trichloride, the mass percentage of iridium trichloride is 1% to 2%, the mass percentage of cerium trichloride is 1% to 4%; the mass percentage of solute in the ammonia water is 25%.

5. The railway contact network positioning clamp device according to claim 1, characterized in that: In the ethanol solution of N-phenyl-1,4-phenylenediamine, the concentration of N-phenyl-1,4-phenylenediamine is 2-5 mg / mL, the solvent is ethanol, the composite oxide is added to the ethanol solution of N-phenyl-1,4-phenylenediamine at a solid-liquid mass ratio of solid / liquid=1:6-8; the mass of the methyl isobutyl ketone added is 2-3 times the mass of the N-phenyl-1,4-phenylenediamine in the solution.

6. A railway contact network positioning clamp device according to claim 1, characterized in that: The styrene-butadiene rubber, carbon black, the solid phase A, zinc oxide powder, stearic acid, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, 1,3-diphenylguanidine and sulfur are calculated in parts by weight: 100 parts of styrene-butadiene rubber, 15-20 parts of carbon black, 8-10 parts of the solid phase A, 3-5 parts of zinc oxide powder, 1-1.5 parts of stearic acid, 0.4-0.5 parts of 2-mercaptobenzothiazole, 0.1-0.2 parts of tetramethylthiuram disulfide, 0.4-0.5 parts of 1,3-diphenylguanidine and 2-3 parts of sulfur.

Images