Macromolecular sustained die head of locomotive and job operation
Technical field
The present invention relates to the macromolecular sustained die head of locomotive (or claiming train, train), be used for respectively saving hitch bonded assembly pad between the railroad car, also can be used as the pad of other powerful extruding.
Background technology
Locomotive (also claiming train, the train) more piece of ining succession mutually railway carriage, each saves between the railway carriage and is interconnected by bindiny mechanism, and the existing bindiny mechanism that uses is generally spring clay hitch.When railway carriage is connected with railway carriage, have very big impact, spring clay hitch exists the great efforts that are hit, and vehicle body is unstable; Oscillation Amplitude is big, and parts damage easily, and spring and clay are installed in the casing; Sometimes casing is squeezed broken back clay and is flow to the outside, the maintenance trouble.And the power that spring clay hitch can only bear 850KN, speed per hour are 60-70 kilometer (mainly referring to shipping load-carrying locomotive), thus this limitation of the technology the development of railway transportation.
Summary of the invention
The objective of the invention is provides a kind of and becomes pad with processing of high molecular material in order to overcome the shortcoming that prior art exists, and the steel axle is supporting with being connected; Has the intensity height, good springiness, and incompressible distortion; High-and low-temperature resistance; Anti-tanning by the sun, contact performancies such as grease resistance, fuel oil, and the macromolecular sustained die head of anti abrasive locomotive.
Another object of the present invention provides the job operation of the macromolecular sustained die head of locomotive.
The technical scheme of the macromolecular sustained die head of locomotive of the present invention is: it is characterized in that an oblate body, the center of body is shaped on axis hole, is cavity in the body, and outer wall is shaped on location lug in the body both sides.
The invention discloses the macromolecular sustained die head of a kind of locomotive, an oblate body since each pad when using through connecting the steel tandem shafts, so be shaped on axis hole at the center, axis hole be connected the steel axle and match.Each railway carriage of locomotive has very big impact when connecting, hitch is connected, and one side is pushed and the opposite side stretching when turning driving, so be cavity in the body, is suitable for elastic deformation.Cushion rubber is except by connecting the steel tandem shafts, and between each cushion rubber, steel plate is installed, and is shaped on knock hole in the steel plate; Therefore, all be shaped on location lug in the both sides of body outer wall, location lug inserted in the steel plate knock hole when assembling was used; Make each cushion rubber independent, keep an integral body again.Present technique scheme locomotive polymeric buffer spacer is flexible good, and incompressible distortion is high temperature resistant, and is low temperature resistant, sun-proof, and contact performancies such as grease resistance, fuel oil, and wear-resistant.Adopt this macromolecular sustained die head and the bindiny mechanism that is connected between each railway carriage of locomotive that steel axle etc. forms, make the holding capacity of shipping load-carrying locomotive can reach 2000KN, speed per hour improves railway transport capacity more than 180 kilometers widely.
The macromolecular sustained die head of locomotive of the present invention, described location lug is 3-6 in every side of body, the location lug of both sides staggers mutually, promptly not in same symmetric position.Knock hole in the steel plate can be a through hole, and can make the 6-12 hole, can all get in the knock hole after the both sides location lug staggers, and receives force intensity good.Said location lug is 4 in every side preferred plan of body, and the location lug of the both sides 45 that staggers mutually matches with the structure of 8 knock holees in the steel plate like this, and is stressed more reasonable.
The job operation of the macromolecular sustained die head of locomotive is characterized in that:
1., injection moulding: the thermoplastic plastic of getting modification is a raw material, and the thermoplastic plastic raw material of modification forms embryonic tube by injection machine, and the mouth of pipe of embryonic tube is shaped on puts ring;
2., heating: heat in the body insertion baking oven with embryonic tube, put ring and be placed on the shelf of baking oven;
3., blowing: after embryonic tube heated, the embryonic tube after the heating is put into the blow moulding machine mould, and blowing made the hollow spheres body to embryonic tube by blow moulding machine;
4., scarfing boring: the oral area of hollow spheres body is comprised that shelf cuts off,, obtain upper and lower axis hole again to the bottom hole of hollow globoid;
5. add hot extrusion molding: with hollow spheres body (scarfing boring back) put into the hydraulic pressure vulcanizing machine heating, pressurization is squeezed into oblate body, cooling and shaping.
The job operation of the macromolecular sustained die head of locomotive of the present invention comprises injection machine (injection machine is a prior art) injection moulding, by baking oven (baking oven specifically be configured to prior art) post bake; The heating back is by blow moulding machine (blow moulding machine is a prior art) blowing, then through vulcanizer (vulcanizer is a prior art, similar in appearance to rubber vulcanizing machine) heating, pressure treatment; From plastic raw materials → plastics embryonic tube → hollow spheres body → arrive oblate body, embryonic tube is solid by the injection machine injection moulding, and is flexible in order to make cushion rubber; Must process ducted body, the embryonic tube after will heating through blow moulding machine blowing is blown out the hollow spheres body, and the globoid after the blowing is not withstand voltage; Poor flexibility, compressive deformation can not restored, so heated, added and depress extrusion forming by vulcanizer; Become oblate body after heating, the pressurization, obtain changing through heating, pressurization back molecular structure, intensity improves; Have following characteristics: fatigue resistance all has good anti-tropism and anti-fatigue performance under 60 ℃ of high temperature or the subzero 40 ℃ of conditions of low temperature; Creep resistance, cushion rubber will be impacted, impact extruded, distortion and recovery, it is good to have anti-creep shape, and rebound resilience is excellent, anti-impact and anti-flexural fatigue, wear-resisting, dimensionally stable, and can resist the corrosion that many industrial chemicals and oil and solvent cause.Locomotive is steady after using this cushion rubber, and is easy to maintenance, improved the safety in the locomotive operation.
The job operation of the macromolecular sustained die head of locomotive of the present invention, the thermoplastic plastic raw material of said modification are PTEE thermoplastic polyester elastomer material.Selecting for use plastic raw materials to be mainly TPEE, is a kind of thermoplastic polyester elastomer material of modification, and the high molecular plastic raw materials of TPEE has very high toughness and intensity.Described baking oven is the infrared ray electric oven heat, and the heating-up temperature of baking oven is 150 ℃-180 ℃.The described extrusion temperature that adds is 150 ℃-180 ℃, and pressure is 130MPa-200MPa.
Description of drawings
Fig. 1 is the structural representation of the macromolecular sustained die head of locomotive of the present invention;
Fig. 2 is the side schematic view of the macromolecular sustained die head of locomotive of the present invention;
Fig. 3 is that embryonic tube is placed on heated condition structural representation in the baking oven;
Fig. 4 is the structural representation that embryonic tube is blow molded into the hollow spheres body;
Fig. 5 is the structural representation after hollow spheres body scarfing and the boring.
The specific embodiment
The present invention relates to macromolecular sustained die head of a kind of locomotive and job operation, like Fig. 1-shown in Figure 5, it is characterized in that an oblate body 1, the center of body 1 is shaped on axis hole 2, is cavity 3 in the body, and outer wall is shaped on location lug 4 in the both sides of body.Since when each pad uses through connecting the steel tandem shafts, so be shaped on axis hole 2 at the center, axis hole be connected the steel axle and match.Each railway carriage of locomotive has very big impact when connecting, hitch is connected, and one side is pushed and the opposite side stretching when turning driving, so be cavity 3 in the body 1, is suitable for elastic deformation.Cushion rubber is except by connecting the steel tandem shafts, and between each cushion rubber, steel plate is installed, and is shaped on knock hole in the steel plate; Therefore, all be shaped on location lug 4 in the both sides of body 1 outer wall, location lug 4 inserted in the steel plate knock hole when assembling was used; Make each cushion rubber independent, keep an integral body again.Present technique scheme locomotive polymeric buffer spacer is flexible good, and incompressible distortion is high temperature resistant, and is low temperature resistant, sun-proof, and contact performancies such as grease resistance, fuel oil, and wear-resistant.Adopt this macromolecular sustained die head and the bindiny mechanism that is connected between each railway carriage of locomotive that steel axle etc. forms, make the holding capacity of shipping load-carrying locomotive can reach 2000KN, speed per hour improves railway transport capacity more than 180 kilometers widely.Described location lug 4 is 3-6 in every side of body 1, and the location lug 4 of both sides staggers mutually, promptly not in same symmetric position.Knock hole in the steel plate can be a through hole, and can make the 6-12 hole, can all get in the knock hole after both sides location lug 4 staggers, and receives force intensity good.Said location lug 4 is 4 in every side preferred plan of body 1, and the location lug 4 of the both sides 45 that staggers mutually matches with the structure of 8 knock holees in the steel plate like this, and is stressed more reasonable.
The job operation of the macromolecular sustained die head of locomotive of the present invention is characterized in that:
1., injection moulding: the thermoplastic plastic of getting modification is a raw material, and the thermoplastic plastic raw material of modification forms embryonic tube 11 by injection machine, and the mouth of pipe of embryonic tube 11 is shaped on puts ring 12;
2., heating: the body of embryonic tube 11 is inserted heating in the baking oven 13, put ring 12 and be placed on the shelf 16 of baking oven;
3., blowing: after embryonic tube 11 heated, the embryonic tube after the heating is put into the blow moulding machine mould, and blowing made hollow spheres body 15 to embryonic tube by blow moulding machine;
4., scarfing boring: the oral area of hollow spheres body 15 is comprised that putting ring 12 cuts off, and to the bottom hole 14 of hollow globoid 15, gets upper and lower axis hole again;
5., sulfuration typing: hollow spheres body 15 (scarfing boring back) is put into hydraulic pressure vulcanizing machine become oblate body, cooling and shaping through heating, press cure.
The invention discloses the job operation of the macromolecular sustained die head of a kind of locomotive, comprise injection machine (injection machine is a prior art) injection moulding, by baking oven 13 (baking oven specifically be configured to prior art) post bake; The heating back is by blow moulding machine (blow moulding machine is a prior art) blowing, then through vulcanizer (vulcanizer is a prior art, similar in appearance to rubber vulcanizing machine) heating, pressure treatment; From plastic raw materials → plastics embryonic tube 11 → hollow spheres body 15 → oblate body 1 of arrival, embryonic tube 11 is solid by the injection machine injection moulding, and is flexible in order to make cushion rubber; Must process ducted body, the embryonic tube 11 after will heating through blow moulding machine blowing is blown out hollow spheres body 15, and the globoid after the blowing is not withstand voltage; Poor flexibility; Compressive deformation can not restore, thus by vulcanizer heating, adding and depress extrusion forming, become oblate body 1 after the heating and pressurizing; Obtain changing through heating, pressurization back molecular structure; Intensity improves, and has following characteristics: fatigue resistance all has good anti-tropism and anti-fatigue performance under 60 ℃ of high temperature or the subzero 40 ℃ of conditions of low temperature; Creep resistance, cushion rubber will be impacted, impact extruded, distortion and recovery, it is good to have anti-creep shape, and rebound resilience is excellent, anti-impact and anti-flexural fatigue, wear-resisting, dimensionally stable, and can resist the corrosion that many industrial chemicals and oil and solvent cause.Locomotive is steady after using this cushion rubber, and is easy to maintenance, improved the safety in the locomotive operation.The thermoplastic plastic raw material of said modification is a PTEE thermoplastic polyester elastomer material.Selecting for use plastic raw materials to be mainly TPEE, is a kind of thermoplastic polyester elastomer material of modification, and the high molecular plastic raw materials of TPEE has very high toughness and intensity.Described baking oven 13 is the infrared ray electric oven heat, and the heating-up temperature of baking oven is 150 ℃-180 ℃.The described extrusion temperature that adds is 150 ℃-180 ℃, and pressure is 130MPa-200MPa.