CN204974869U - Air piping swan neck system of short straight flange screw thread in railway freight car area - Google Patents
Air piping swan neck system of short straight flange screw thread in railway freight car area Download PDFInfo
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- CN204974869U CN204974869U CN201520651337.9U CN201520651337U CN204974869U CN 204974869 U CN204974869 U CN 204974869U CN 201520651337 U CN201520651337 U CN 201520651337U CN 204974869 U CN204974869 U CN 204974869U
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- neck system
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Abstract
The utility model belongs to a railway freight car air piping makes technical field, and for solving traditional return bend technology and equipping and to make short straightway of threaded or smaller part footpath return bend, the operation of novel equipment is complicated and with high costs, provides an air piping swan neck system of short straight flange screw thread in railway freight car area. The return bend inflection direction head that output that the swan neck system is power unit set up, the circular arc that the diameter is the same with crooked radian that return bend inflection direction head end portion established diameter and radian and treated curved steel pipe, circular arc both ends installation auxiliary stay, auxiliary stay tip are established and are assisted the support roller groove, assist the support roller inslot and establish the auxiliary stay leading wheel, the auxiliary stay leading wheel is fixed in on the work platform. Accessory with simple economy is made, and its operation, maintenance and simple manufacture, with low costs are fit for the crooked preparation that railway freight car went up batch buret of the short straight flange screw pipeline return bend angle in five kinds of specification areas commonly used such as DN10, DN15, DN20, DN25, DN32 between 90 and 180.
Description
Technical field
The utility model belongs to railway freight-car air pipe line manufacturing technology field, is specifically related to the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band.
Background technology
Along with lorry body structure, space constraint and pipeline used are short as far as possible, avoid the requirement affecting wind braking or alleviate speed, when wind braking or the design of wind control piping arrangement paper, the supervisor often braked by wind and the elbow curvature radius of arm and pipe straightway are selected smaller, and in one case, its end all with gas thread, as shown in Figure 1, L1, L2 limit is all less than 200mm, must not destroy screw thread during bend pipe.
When adopting traditional bent tube technique to make threaded bend pipe, due to the restriction of process unit and technique, need bend pipe length of run and straightway long enough, process allowance is lengthened as adopted during blanking, excision remainder punching again after bend pipe, last again when end processing tube screw thread, then very difficult realization utilizes existing weaponry and equipment to be difficult to clamp bend pipe and can process end pipe screw thread again.Therefore above-mentioned bend pipe designs and brings certain difficulty to manufacture.
Therefore for meeting rectilinear end and the little railway freight-car wind braking of bending radius or the requirement of wind keyholed back plate bend pipe, be badly in need of a kind of safe and reliable pipeline swan neck system of exploitation, can ensure that five kinds of regular size band short straight flange threaded passage small-bend radius bent pipes such as existing railway lorry DN10, DN15, DN20, DN25, DN32 make, the making of bend pipe angle between 90 °-180 ° can be ensured again, and after bend pipe, do not affect the sealing using function of two ends screw thread.
Summary of the invention
The utility model is in order to solve the minor radius bend pipe adopting traditional bent tube technique and equipment can not make the threaded short lines section in end, employing New Equipments makes, complicated operation and the high problem of cost, provide the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band.
The utility model is realized by following technical scheme: the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band, comprise the workbench be connected with actuating unit, the swan neck system be connected with workbench, described swan neck system be actuating unit output arrange bend pipe in curved guide head, in bend pipe, the circular arc that diameter and radian are identical with crooked radian with the diameter of steel pipe to be curved is established in curved guide head end, at circular arc two ends, supplemental support is installed, the end of supplemental support establishes supplemental support pulley groove respectively, installs supplemental support directive wheel in supplemental support pulley groove; Described supplemental support directive wheel is fixed on workbench by round pin.
In described bend pipe, curved guide head is vertically fixedly connected with pointer; Described workbench is provided with longitudinal center's groove and rule, and rule is fixed on the workbench position corresponding with pointer.The junction of described supplemental support end and steel pipe to be curved is provided with tapped locking nut, and internal thread and the steel tube end part short lines section external screw thread to be bent of locking nut match, and locking nut length is greater than band bended pipe short lines section external thread length.On workbench, longitudinally groove both sides in center are also arranged with two supplemental support directive wheel installing holes.The round steel of described supplemental support to be two ends be rounding, rounding segment outer radius 0.1 ~ 0.15mm less of pipe diameter to be curved.Described actuating unit is hydraulic jack and apply device or reservoir and pneumatic operating means.
Hydraulic jack and operating means can adopt the large reservoir of diameter and pneumatic operating means to replace, and workbench is stressed main body, and distance ground level must meet ergonomic demands, convenient operation, and has enough intensity and rigidity.Workbench is provided with longitudinal groove, rule.After the observation tube bending center to be curved line be placed in supplemental support pulley groove overlaps with groove longitudinal on workbench, bend pipe work could be started, guarantee that bend pipe two ends length meets the requirements.
Round steel is adopted to be processed into the applicable supplemental support of diameter and length and bend pipe requirement, the rounding that its head is arranged is convenient to insert band bended pipe, rounding segment outer radius and pipe diameter matched in clearance to be curved, its external diameter is less than pipe diameter 0.1 ~ 0.15mm to be bent, if matched in clearance is too small, rounding part not easily inserts steel pipe to be bent, as excesssive gap, then in the BENDING PROCESS of steel pipe to be bent, steel tube end part external diameter circularity does not ensure, steel tube screw thread sealing property can be affected, the length of the rounding part as step is determined according to the insertion steel pipe degree of depth, its length plays auxiliary positioning effect as step.Rounded corners divides two ends being arranged on whole supplemental support, the namely two ends of round steel, and one end play the guiding role, and is convenient to insert steel pipe, and other end chamfering is human oriented design, plays rounding off, avoids scratching hand during operative.
Supplemental support directive wheel round pin is fixed on work top, play the guiding role, in order to avoid scratch supplemental support round steel or tube outer wall, as required, the circular arc that two supplemental support directive wheels and supplemental support round steel diameter or diameter of steel tube to be bent coordinate can be different.And as required, two supplemental support directive wheel gathering sills are enough dark, are convenient to the supplemental support of placing steel pipe two ends to be curved.
After steel tube end part external screw thread processing to be bent; tube wall is thinning; distortion is easy in BENDING PROCESS; the end short lines section screw thread on bend pipe is protected with the female locking nut of band mated with end to be bent external screw thread; be convenient to protection tube end external screw thread, the length of locking nut exceedes the external thread length of steel pipe to be bent.
In bend pipe, hydraulic jack or reservoir push rod head are inserted in curved guide head one end, and the diameter of the other end and steel pipe to be bent is supporting, guarantees the accurate of bending radius.In bend pipe, curved guide head is provided with pointer, observes pointer scale corresponding on rule and overlaps, to determine oil cylinder or cylinder piston stroke, guarantee that bend pipe angle is suitable during bend pipe.
Bend pipe preparation: be arranged symmetrically with on hole suitable for both sides on two supplemental support directive wheel central aperture workbenches along oil cylinder or cylinder longitudinal center respectively, inserts round pin.Use the external screw thread at nut check steel pipe two ends to be curved respectively, supplemental support is being inserted respectively in steel pipe two ends to be curved, then tube bending center to be curved line is overlapped with the longitudinal centre line that workbench is set up, steel pipe two ends to be curved supplemental support is placed on two supplemental support gathering sills simultaneously.Select curved guide head in suitable bend pipe to be arranged on oil cylinder or cylinder output, and pointer to be arranged in bend pipe on curved guide head.
Bend pipe operates: start advance control button, oil cylinder or cylinder output drive curved guide head in bend pipe to move forward, simultaneously its head holds out against steel pipe and moves forward, two supplemental support with supplemental support directive wheel for moving forward, after in observation bend pipe, on curved guide head, pointer overlaps with the scale that workbench needs, button course changing control is retreated, after guide head curved in bend pipe returns to start bit with oil cylinder or cylinder output, take out curved good steel pipe, remove the supplemental support at two ends respectively, the locking nut at dismounting steel pipe two ends, finally curved good steel pipe is placed on assigned address, bend pipe terminates.
The difficult point of the utility model bend pipe is after threaded short tube simmering and bending, bend pipe end thread can not be destroyed, and ensure that bend pipe angle is between 90 ° and 180 °, curved guide head installs pointer in bend pipe additional, on workbench, increase rule and longitudinal center's groove, longitudinal center's groove combines and overlaps with tube bending center line to be curved, so as to observe and accurately complete bend pipe, raise the efficiency, in bend pipe curved guide head and two supplemental support directive wheels replaceable with the pipe of joining different-diameter; Before bend pipe, after being overlapped with longitudinal center on workbench by steel pipe bend pipe center line to be curved, be placed on by steel pipe to be curved in two supplemental support directive wheels on lower support face, namely two supplemental support directive wheels are except playing the guiding role simultaneously, also play and support steel pipe effect to be curved, convenient, simple, practical.In addition also can on workbench longitudinally center groove bilateral symmetry set up any installing hole of two supplemental support directive wheels, to adapt to the needs of the steel pipe bend pipe of different-diameter, different straightway and different bending angle.
Compared with prior art: the utility model is provided with longitudinal groove by workbench, in rule and bend pipe, curved guide head is provided with pointer, observe tube bending center to be curved line to overlap with groove longitudinal on workbench and pointer scale corresponding on rule overlaps, easily threaded short lines section or minor radius bend pipe are completed, solve and adopt traditional bent tube technique and equip the difficult problem that can not make, the accessory of the utility model simple economy makes, its operation, safeguard and make simple, cost is low, be applicable to DN10 on railway freight-car, DN15, DN20, DN25, the bending making of the in enormous quantities pipe of five kinds of regular size band short straight flange threaded passage bend pipe angles such as DN32 between 90 ° and 180 °.
Accompanying drawing explanation
Fig. 1 is threaded short straight flange bend pipe structure schematic diagram; Fig. 2 is structural representation after the air pipe line swan neck system bend pipe of the short straight flange screw thread of railway freight-car band described in the utility model; Fig. 3 is the air pipe line swan neck system bend pipe pre-structure schematic diagram of the short straight flange screw thread of railway freight-car band described in the utility model; Fig. 4 is that the A of Fig. 3 is to side view; Fig. 5 is auxiliary support structure schematic diagram.
In figure: 1-actuating unit; 2-workbench; Curved guide head in 3-bend pipe; 4-supplemental support; 5-supplemental support directive wheel; 6-locking nut; 7-pointer; 8-rule; 9-rounding.
Detailed description of the invention
The air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band, comprise the workbench 2 be connected with actuating unit 1, the swan neck system be connected with workbench 2, described swan neck system be actuating unit 1 output arrange bend pipe in curved guide head 3, in bend pipe, the circular arc that diameter and radian are identical with crooked radian with the diameter of steel pipe to be curved is established in curved guide head 3 end, at circular arc two ends, supplemental support 4 is installed, the end of supplemental support 4 establishes supplemental support pulley groove respectively, installs supplemental support directive wheel 5 in supplemental support pulley groove; Described supplemental support directive wheel 5 is fixed on workbench 2 by round pin.
In bend pipe, curved guide head 3 is vertically fixedly connected with pointer 7; On described workbench, 2 are provided with longitudinal center's groove and rule 8, and rule 8 is fixed on the workbench position corresponding with pointer 7.The junction of supplemental support 4 end and steel pipe to be curved is provided with tapped locking nut 6, and internal thread and the steel tube end part short lines section external screw thread to be bent of locking nut 6 match, and locking nut length is greater than band bended pipe short lines section external thread length.After locking nut 6 is tightened at screw thread place, steel pipe two ends to be curved, at steel pipe two ends to be curved, supplemental support 4 is installed, establishes supplemental support pulley groove respectively in the end of supplemental support 4, in supplemental support pulley groove, install supplemental support directive wheel 5; On workbench, longitudinally groove both sides in center are also arranged with two supplemental support directive wheel installing holes.The round steel of supplemental support to be two ends be rounding 9, rounding segment outer radius 0.1 ~ 0.15mm less of pipe diameter to be curved.Actuating unit is hydraulic jack and apply device or reservoir and pneumatic operating means.
Hydraulic jack and operating means can adopt the large reservoir of diameter and pneumatic operating means to replace, and workbench is stressed main body, and distance ground level must meet ergonomic demands, convenient operation, and has enough intensity and rigidity.Workbench 2 is provided with longitudinal center's groove and rule 8.Pointer 7 is provided with respectively by curved guide head in tube bending center to be curved line and bend pipe, observe tube bending center to be curved line to overlap with longitudinal center's groove on workbench and pointer scale corresponding on rule overlaps, bend pipe work could be started, guarantee that bend pipe two ends length and angle of bend meet the requirements.On workbench, longitudinally groove bilateral symmetry in center sets up any installing hole of two supplemental support directive wheels, to adapt to the needs of the steel pipe bend pipe of different-diameter, different straightway and different bending angle.
Round steel is adopted to be processed into the applicable supplemental support of diameter and length and bend pipe requirement, the rounding 7 that its head is arranged play the guiding role and is convenient to insert band bended pipe, rounding part internal diameter must with pipe diameter matched in clearance to be curved, its external diameter is less than pipe diameter 0.1 ~ 0.15mm to be bent, if matched in clearance is too small, rounding part not easily inserts steel pipe to be bent, as excesssive gap, then in the BENDING PROCESS of steel pipe to be bent, steel tube end part external diameter circularity does not ensure, steel tube screw thread sealing property can be affected, the length of the rounding part as step is determined according to the insertion steel pipe degree of depth, its length plays auxiliary positioning effect.Rounded corners divides two ends being arranged on whole supplemental support, the namely two ends of round steel, and one end play the guiding role, and is convenient to insert steel pipe, and other end chamfering is human oriented design, plays rounding off, avoids scratching hand during operative.
Supplemental support directive wheel round pin is fixed on work top, play the guiding role, in order to avoid scratch supplemental support round steel or tube outer wall, as required, the circular arc that two supplemental support directive wheels and supplemental support round steel diameter or diameter of steel tube to be bent coordinate can be different.And as required, two supplemental support directive wheel gathering sills are enough dark, are convenient to the supplemental support of placing steel pipe two ends to be curved.
After steel tube end part external screw thread processing to be bent; tube wall is thinning; distortion is easy in BENDING PROCESS; the end short lines section screw thread on bend pipe is protected with the female locking nut of band mated with end to be bent external screw thread; be convenient to protection tube end external screw thread, the length of locking nut exceedes the external thread length of steel pipe to be bent.
In bend pipe, hydraulic jack or reservoir push rod head are inserted in curved guide head one end, and the diameter of the other end and steel pipe to be bent is supporting, guarantees the accurate of bending radius.In bend pipe, curved guide head is provided with pointer, observes pointer scale corresponding on rule and overlaps, to determine oil cylinder or cylinder piston stroke, guarantee that bend pipe angle is suitable during bend pipe.In bend pipe, curved guide head is replaceable to adapt to the needs of the steel pipe bend pipe of different-diameter, different straightway and different bending angle.
Bend pipe preparation: be arranged symmetrically with on hole suitable for both sides on two supplemental support directive wheel central aperture workbenches along oil cylinder or cylinder longitudinal center respectively, inserts round pin.Use the external screw thread at nut check steel pipe two ends to be curved respectively, supplemental support is being inserted respectively in steel pipe two ends to be curved, then tube bending center to be curved line is overlapped with the longitudinal centre line that workbench is set up, steel pipe two ends to be curved supplemental support is placed on two supplemental support gathering sills simultaneously.Select curved guide head in suitable bend pipe to be arranged on oil cylinder or cylinder output, and pointer to be arranged in bend pipe on curved guide head.
Bend pipe operates: start advance control button, oil cylinder or cylinder output drive curved guide head in bend pipe to move forward, simultaneously its head holds out against steel pipe and moves forward, two supplemental support with supplemental support directive wheel for moving forward, after in observation bend pipe, on curved guide head, pointer overlaps with the scale that workbench needs, button course changing control is retreated, after guide head curved in bend pipe returns to start bit with oil cylinder or cylinder output, take out curved good steel pipe, remove the supplemental support at two ends respectively, the locking nut at dismounting steel pipe two ends, finally curved good steel pipe is placed on assigned address, bend pipe terminates.
The difficult point of bend pipe is after threaded short tube simmering and bending, bend pipe end thread can not be destroyed, and ensure that bend pipe angle is between 90 ° and 180 °, curved guide head installs pointer in bend pipe additional, on workbench, increase rule and longitudinal center's groove, longitudinal center's groove combines and overlaps with tube bending center line to be curved, so as to observe and accurately complete bend pipe, raise the efficiency, in bend pipe curved guide head and two supplemental support directive wheels replaceable with the pipe of joining different-diameter; Before bend pipe, after being overlapped with longitudinal center on workbench by steel pipe bend pipe center line to be curved, be placed on by steel pipe to be curved in two supplemental support directive wheels on lower support face, namely two supplemental support directive wheels are except playing the guiding role simultaneously, also play and support steel pipe effect to be curved, convenient, simple, practical.In addition also can on workbench longitudinally center groove bilateral symmetry set up any installing hole of two supplemental support directive wheels, to adapt to the needs of the steel pipe bend pipe of different-diameter, different straightway and different bending angle.
Claims (6)
1. the air pipe line swan neck system of the short straight flange screw thread of railway freight-car band, comprise the workbench (2) be connected with actuating unit (1), the swan neck system be connected with workbench (2), it is characterized in that: described swan neck system be actuating unit (1) output arrange bend pipe in curved guide head (3), in bend pipe, the circular arc that diameter and radian are identical with crooked radian with the diameter of steel pipe to be curved is established in curved guide head (3) end, at circular arc two ends, supplemental support (4) is installed, the end of supplemental support (4) establishes supplemental support pulley groove respectively, supplemental support directive wheel (5) is installed in supplemental support pulley groove, described supplemental support directive wheel (5) is fixed on workbench (2) by round pin.
2. the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band according to claim 1, is characterized in that: in described bend pipe, curved guide head (3) is vertically fixedly connected with pointer (7); On described workbench, (2) are provided with longitudinal center's groove and rule (8), and rule (8) is fixed on the workbench position corresponding with pointer (7).
3. the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band according to claim 1, it is characterized in that: the junction of described supplemental support (4) end and steel pipe to be curved is provided with tapped locking nut (6), internal thread and the steel tube end part short lines section external screw thread to be bent of locking nut (6) match, and locking nut length is greater than band bended pipe short lines section external thread length.
4. the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band according to claim 1, is characterized in that: on workbench, longitudinally groove both sides in center are also arranged with two supplemental support directive wheel installing holes.
5. the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band according to claim 1, is characterized in that: the round steel of described supplemental support to be two ends be rounding (9), rounding segment outer radius 0.1 ~ 0.15mm less of pipe diameter to be curved.
6. the air pipe line swan neck system of the short straight flange screw thread of a kind of railway freight-car band according to claim 1, is characterized in that: described actuating unit is hydraulic jack and apply device or reservoir and pneumatic operating means.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651337.9U CN204974869U (en) | 2015-08-27 | 2015-08-27 | Air piping swan neck system of short straight flange screw thread in railway freight car area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651337.9U CN204974869U (en) | 2015-08-27 | 2015-08-27 | Air piping swan neck system of short straight flange screw thread in railway freight car area |
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| CN204974869U true CN204974869U (en) | 2016-01-20 |
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| CN201520651337.9U Active CN204974869U (en) | 2015-08-27 | 2015-08-27 | Air piping swan neck system of short straight flange screw thread in railway freight car area |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251830A (en) * | 2015-10-30 | 2016-01-20 | 河南科技大学 | Pipe bender |
| CN108031736A (en) * | 2017-12-28 | 2018-05-15 | 中建八局第三建设有限公司 | A kind of round steel lightning protection jumper machinery processing apparatus and its processing method |
| CN110977339A (en) * | 2019-11-27 | 2020-04-10 | 合肥聚能电物理高技术开发有限公司 | Manufacturing process of built-in low-temperature pump nitrogen screen elbow |
-
2015
- 2015-08-27 CN CN201520651337.9U patent/CN204974869U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251830A (en) * | 2015-10-30 | 2016-01-20 | 河南科技大学 | Pipe bender |
| CN108031736A (en) * | 2017-12-28 | 2018-05-15 | 中建八局第三建设有限公司 | A kind of round steel lightning protection jumper machinery processing apparatus and its processing method |
| CN110977339A (en) * | 2019-11-27 | 2020-04-10 | 合肥聚能电物理高技术开发有限公司 | Manufacturing process of built-in low-temperature pump nitrogen screen elbow |
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Address after: 030024 No. 129 Xinghua West Street, Wan Berlin District, Shanxi, Taiyuan Patentee after: CRRC TAIYUAN CO., LTD. Address before: 030009 Shanxi Province, Taiyuan city Xinghualing District No. 10 Jiefang North Road Patentee before: Taiyuan Rail Traffic Equipment Co., Ltd. |