CN200981559Y - Axle-box draw rod - Google Patents
Axle-box draw rod Download PDFInfo
- Publication number
- CN200981559Y CN200981559Y CN 200620053146 CN200620053146U CN200981559Y CN 200981559 Y CN200981559 Y CN 200981559Y CN 200620053146 CN200620053146 CN 200620053146 CN 200620053146 U CN200620053146 U CN 200620053146U CN 200981559 Y CN200981559 Y CN 200981559Y
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- Prior art keywords
- mandrel
- end cap
- elastic
- metal
- rubber
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- Expired - Lifetime
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Abstract
The utility model relates to an axle box draw rod, wherein core shaft elastic sleeves fits over the two core shafts, and draw rods which is connected with the two core shafts fits over the core shaft elastic sleeves, thereby the two core shafts make an elastic connection through the draw rods. All the end-face positions of the core shaft holes of the draw rods are provided with end caps which can prevent the axial moving of the draw rods, and the end caps contact the end faces of the core shaft holes of the draw rods through end cap elastic pads, and the axial positions of the end caps are controlled by the retainer rings which are clasped on the core shafts. The utility model is characterized in that the core shaft elastic sleeves fitting over the two core shafts are metal elastic body compound sleeves, the external layers of the core shaft elastic sleeves are metal sleeves, and an elastic piece is tightly connected with the internal face of the metal sleeve, the shape of the excircle of the elastic piece is identical with the shape of the inner circle of the metal sleeve, and the shape of the inner circle of the elastic piece is identical with the shape of excircle of the core shaft, and furthermore the end cap elastic pads between the end faces of the core shaft holes and the end caps which can prevent the axial moving of the draw rods are metal elastic body components too, and the end cap pad is the metal elastic body component in which the two faces are metal pieces and the middle portion is an elastic piece.
Description
Technical field
The utility model relates to a kind of locomotive mechanical connecting device, refers in particular to the axlebox rod of a kind of diesel locomotive and electric locomotive axle box, is mainly used in the mechanical connection of various diesel locomotives and electric locomotive.
Background technology
Axlebox rod is widely used in diesel locomotive and the electric locomotive as a kind of elastomeric mechanical fastener, and its effect is as axle-box positioning device transmitting tractive power and braking force, and provides axle box in rigidity vertical, three directions of vertical and horizontal.All generally adopt this axlebox rod structure on some low speed locomotives abroad and domestic Dongfeng series internal combustion locomotive, Shaoshan series electric locomotive.Its representative type structure is seen Fig. 1, is made up of mandrel, mandrel rubber coating, end cap, end cap rubber pad, snap ring, connecting rod body.End cap plays location and protection; The end cap rubber pad is two-layer rubber folder one deck steel plate structure, on one side contact with connecting rod, another side contacts with end cap; Snap ring plays a part to clamp end cap and rubber pad, makes rubber be lined with certain pre compressed magnitude; The sulfuration of mandrel rubber coating is pressed into by interference fit in the hole of connecting rod body on the mandrel external cylindrical surface; Connecting rod body is an integral cast steel spare, is the matrix of whole axlebox rod.When the relative framework of axle box produced cross travel, the end cap rubber pad will produce compression and flexural deformation, mandrel will produce shearing and flexural deformation.When the relative framework of axle box produces longitudinal travel, the mandrel rubber coating will produce compressive deformation end cap rubber pad and then produce shear deformation.Adopt this structure, eliminated the friction pair between axle box and the framework, effectively reduce abrasion, reduced maintenance load, and helped improving the dynamic force between the wheel track, improve the dynamic performance of locomotive.But also there is deficiency in existing axlebox rod structure, mainly shows as: when pull bar bears longitudinal force, have cliding friction between end cap rubber pad and end cap, the connecting rod body; Have cliding friction between mandrel rubber coating and the connecting rod body when bearing transverse force, this causes Rubber Parts to begin at the contact surface place to damage easily.In addition, when end cap rubber pad and the flexural deformation of mandrel rubber coating, its outer edge distortion is relatively large, thereby stress is also bigger, and this causes the axlebox rod Rubber Parts to begin early stage rhegma, inefficacy from two ends easily.Former SS9 locomotive axlebox rod Rubber Parts begins to destroy from this edge.And the inefficacy of pull bar changes the kinetic parameter of locomotive, may cause the locomotive vibration acceleration/accel to increase and the lateral stability reduction, and the safety of locomotive is descended.Therefore necessary this is improved.
The utility model content
The purpose of this utility model is the deficiency at existing diesel locomotive and electric locomotive axlebox rod, propose that a kind of more reasonable structure, rubber distribution of stress are more even, rubber does not have wearing and tearing, in-use performance is more stable, longer service life diesel locomotive and electric locomotive axlebox rod.
The purpose of this utility model is achieved through the following technical solutions: the utility model on the overall structure basis of invariable, has carried out optimal design to its inner structure at the present situation of existing axlebox rod, has proposed a kind of later-model axlebox rod structure.This structure can be eliminated the friction between axlebox rod Rubber Parts and the ironware, reduces the Rubber Parts edge stress, thereby reduces the locomotive maintenance cost service life of effectively improving axlebox rod, guarantees the safety of locomotive operation.Novel axlebox rod structure is: a kind of axlebox rod comprises mandrel, snap ring, end cap, pull bar, mandrel resilient sleeve, end cap cushion.At the present situation of existing axlebox rod, on the overall structure basis of invariable, its inner structure has been carried out optimal design.Be useful on the mandrel hole that mandrel is installed at the pull bar two ends, mandrel is equipped with mandrel in the hole, between the mandrel hole of pull bar and the mandrel mandrel resilient sleeve is arranged, the sulfuration of mandrel resilient sleeve is on mandrel, and the mandrel resilient sleeve is the compound nested structure of elastic metallic, and the skin of its mandrel resilient sleeve is a metallic sheath, the cylindrical of metallic sheath is a column, interior circle is interior outstanding arcuation body, is close to the elastic component that together has to be made by elastomeric material with the metallic sheath inner face, and the elastic component cross sectional shape is the little double horn shape in big centre, two ends; The elastic component cylindrical is consistent with the interior toroidal of metallic sheath, and sulfides with metallic sheath; The sulfuration of mandrel resilient sleeve is pressed into by interference fit in the hole of connecting rod body on the mandrel external cylindrical surface; The interior circle of elastic component is consistent with the cylindrical of mandrel, and sulfides with mandrel.Mandrel and the two ends of side, pull bar mandrel hole be equipped with the end cap of location and protective effect; Be provided with the end cap cushion between the side of end cap and pull bar, the end cap cushion is an elastic metallic composite multi-layer structure, and interlayer is an elastomeric layer, is metal level on the elastomeric layer two sides; The metal level on elastomeric layer and two sides is that integral body sulfides.Simultaneously, be equipped with the circular orientation seam at end cap and pull bar side, the end cap cushion is placed in the positioning spigot of end cap and drag link body side, and, make the rubber layer of end cap cushion not have external friction by the positioning spigot radial location, the rigidity decline that can't produce skids causes and the damage of Rubber Parts, the axlebox rod locating surface is the end cap side, increase area of contact, make the stressed even of rubber pad, improve the reliability of location.
Novel axlebox rod structure is mainly improved in the following aspects:
1. end cap rubber pad (seeing Fig. 3 A) changes up and down two-layered steel plates structure into by the middle steel plate structure, and rubber is sulfided into integral body with two-layered steel plates up and down, and the rubber section shape is changed into the structure of approximate trapezoid by rectangle.The two-layered steel plates structure has been avoided the relative friction between rubber and the ironware up and down, and the strain and stress of thickening can reducing rubber pad outer ring, rubber pad outer ring prevents the too early rhegma in rubber pad outer ring and steel part contact position;
2. mandrel rubber (seeing Fig. 3 B) has increased an outer steel sleeve, and rubber and mandrel, overcoat are bonded to an integral body through sulfuration.The cross sectional shape of rubber coating has been made particular design, is little tubaeform in big centre, two ends.The principle same with rubber pad because the two-end thickness of rubber coating increases, can effectively reduce the strain of rubber coating two ends when producing flexural deformation, thereby reduce its stress level, prolongs its service life;
3. increased annular stopper at end cap and connecting rod body side, the end cap rubber pad is installed among the seam, can prevent like this in the existing structure that rubber pad and end cap, connecting rod body side friction skid and cause that rigidity descends and the damage of Rubber Parts;
4. the locating surface of axlebox rod is combined with the side of snap ring by the side that the side of snap ring changes end cap into, can increase area of contact like this, improves the reliability of location, and rubber pad is stressed also more even simultaneously.
The utility model is at the deficiency of existing axlebox rod, and on the overall structure basis of invariable, we have carried out optimal design to its inner structure, have proposed a kind of later-model axlebox rod structure.This structure can effectively improve the service life and the stability of axlebox rod, thereby reduces the locomotive maintenance cost, the safety that improves locomotive operation.The main technical points that table 1 has been listed novel axlebox rod and existing structure compares:
Table 1
| Sequence number | Technical essential | The existing structure feature description | The new structure feature description | The advantage of the relative existing structure of |
| 1 | End cap rubber pad structure | Double-layer structure, steel plate is between rubber | Single layer structure, rubber is between two-layered steel plates | Avoid the relative friction between rubber and the |
| 2 | The cross sectional shape of rubber pad rubber | Rectangle | Trapezoidal | Reduce the strain and stress in the rubber outside, improve its life- |
| 3 | The location of end cap rubber pad | There is not the location, rubber and end cap, drag link body direct friction | At end cap and drag link body side the seam location is arranged, the end cap rubber pad does not have external friction | Rubber does not have external friction, the rigidity decline that can't produce skids causes and the damage of |
| 4 | The mandrel component structure | Mandrel and rubber coating sulfuration structure, rubber directly is pressed into drag link body | Mandrel, rubber coating, overcoat sulfuration structure, overcoat is pressed into drag link body | Rubber does not have external friction, the damage of the Rubber Parts that can't produce skids causes |
| 5 | The cross sectional shape of mandrel rubber coating | Cylindrical shape | Tubaeform | Reduce the strain and stress of rubber coating two ends when producing flexural deformation, improve its life- |
| 6 | The axlebox rod locating surface | The snap ring side | The end cap side | Increase area of contact, make the stressed even of rubber pad, improve the reliability of location |
Description of drawings
Fig. 1 is existing typical axle box Tiebar structure scheme drawing;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the utility model end cap cushion structural representation;
Fig. 4 is the utility model mandrel resilient sleeve structural representation.
Among the figure: 1-mandrel 2-snap ring 3-end cap 4-pull bar 5-mandrel resilient sleeve 6-end cap cushion 7-metallic sheath 8-Rubber Parts 9-rubber layer 10-metal piece 11-positioning spigot 12-mandrel hole.
The specific embodiment
Accompanying drawing has provided an embodiment of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
From accompanying drawing as can be seen, the utility model is a kind of locomotive axlebox rod, comprises mandrel 1, snap ring 2, end cap 3, pull bar 4, mandrel resilient sleeve 5, end cap cushion 6.The utility model on the overall structure basis of invariable, has carried out optimal design to its inner structure at the present situation of existing axlebox rod.Be useful on the mandrel hole 12 that mandrel 1 is installed at pull bar 4 two ends, mandrel is equipped with mandrel in the hole, between the mandrel hole of pull bar 4 and the mandrel 1 mandrel resilient sleeve 5 is arranged, 5 sulfurations of mandrel resilient sleeve are on mandrel 1, mandrel resilient sleeve 5 is the compound nested structure of rubber-metal, the skin of its mandrel resilient sleeve 5 is a metallic sheath 7, the cylindrical of metallic sheath 7 is a column, interior circle is interior outstanding arcuation body, be close to the Rubber Parts 8 that together has to make with the metallic sheath inner face by rubber, Rubber Parts 8 also can be made of other elastomeric material or rubber plastic composite elastic spare, rubber bodies 8 cross sectional shapes are the little double horn shape in big centre, two ends, reduce the strain and stress of rubber coating two ends when producing flexural deformation, improve its life-span; Rubber Parts 8 cylindricals are consistent with the interior toroidal of metallic sheath 7, and sulfide with metallic sheath 7; The sulfuration of mandrel rubber coating be pressed into by interference fit in the hole of connecting rod body, so rubber layer does not have external friction, the damage of the Rubber Parts that can't produce skids causes on the mandrel external cylindrical surface; The interior circle of Rubber Parts 8 is consistent with the cylindrical of mandrel, and sulfides with mandrel 1.The end cap that has been equipped with location and protective effect in the two sides at pull bar 4 two ends; Be provided with end cap cushion 6 between the side of end cap and pull bar 4, end cap cushion 6 is the rubber-metal elastomeric elements, be the individual layer rubber structure, the centre is a rubber layer 9, on rubber layer 9 two sides is metal piece 10, thereby has avoided the direct friction between rubber and the ironware, and intermediate rubber layer 9 is a trapezium structure, reduce the strain and stress in the rubber outside, improve its life-span; Rubber layer 9 is that integral body sulfides with the metal piece 10 on two sides; Rubber layer 9 is mainly axlebox rod lateral stiffness is provided.Simultaneously, be equipped with circular orientation seam 11 at end cap 3 and pull bar 4 sides, end cap cushion 6 is placed in the positioning spigot 11 of end cap and drag link body side, and, make the rubber layer of end cap cushion 6 not have external friction by positioning spigot 11 radial locations, the rigidity decline that can't produce skids causes and the damage of Rubber Parts, the axlebox rod locating surface is the end cap side, increase area of contact, make the stressed even of rubber pad, improve the reliability of location.
Claims (6)
1, a kind of axlebox rod comprises mandrel, snap ring, end cap, pull bar, mandrel resilient sleeve, end cap cushion; Be useful on the mandrel hole that mandrel is installed at the pull bar two ends, mandrel is equipped with mandrel in the hole, between the mandrel hole of pull bar and the mandrel mandrel resilient sleeve is arranged, the mandrel resilient sleeve is vulcanized on mandrel, has been equipped with the end cap of location and protective effect at the two ends of mandrel and side, pull bar mandrel hole; Be provided with the end cap cushion between the side of end cap and pull bar, it is characterized in that: the mandrel resilient sleeve is the compound nested structure of elastic metallic, the skin of its mandrel resilient sleeve is a metallic sheath, the cylindrical of metallic sheath is a column, interior circle is interior outstanding arcuation body, be close to the elastic component that together has to be made by elastomeric material with the metallic sheath inner face, the elastic component cylindrical is consistent with the interior toroidal of metallic sheath, and sulfides with metallic sheath; The interior circle of elastic component is consistent with the cylindrical of mandrel, and sulfides with mandrel; And the end cap cushion is an elastic metallic composite multi-layer structure, and interlayer is an elastomeric layer, is metal level on the elastomeric layer two sides; The metal level on elastomeric layer and two sides be integral adhesive together.
2, axlebox rod as claimed in claim 1 is characterized in that: the elastic body cross sectional shape of described mandrel resilient sleeve is little tubaeform in big centre, two ends.
3, axlebox rod as claimed in claim 1 or 2 is characterized in that: the metal-coating of described mandrel resilient sleeve and elastic body, elastic body and mandrel are that overall sulfur changes into and is one.
4, axlebox rod as claimed in claim 1 is characterized in that: described metal-coating and elastic body, elastic body and mandrel are that overall sulfur changes into and is one, and metal-coating is pressed in the drag link body.
5, axlebox rod as claimed in claim 1 is characterized in that: the middle elastic component of described end cap cushion is a trapezium structure, and the metal piece on elastic component and two sides is that integral body sulfides.
6, axlebox rod as claimed in claim 1, it is characterized in that: be equipped with annular stopper at end cap and drag link body side, the end cap cushion is placed in the positioning spigot of end cap and drag link body side, and by the positioning spigot radial location, the axlebox rod locating surface is the end cap side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620053146 CN200981559Y (en) | 2006-12-18 | 2006-12-18 | Axle-box draw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620053146 CN200981559Y (en) | 2006-12-18 | 2006-12-18 | Axle-box draw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200981559Y true CN200981559Y (en) | 2007-11-28 |
Family
ID=38908720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620053146 Expired - Lifetime CN200981559Y (en) | 2006-12-18 | 2006-12-18 | Axle-box draw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200981559Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2595729C1 (en) * | 2015-03-17 | 2016-08-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Дальневосточный государственный университет путей сообщения" (ДВГУПС) | Axle-box link |
| CN107520610A (en) * | 2017-08-29 | 2017-12-29 | 株洲时代新材料科技股份有限公司 | The parts assembly tool and method of axlebox rod |
-
2006
- 2006-12-18 CN CN 200620053146 patent/CN200981559Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2595729C1 (en) * | 2015-03-17 | 2016-08-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Дальневосточный государственный университет путей сообщения" (ДВГУПС) | Axle-box link |
| CN107520610A (en) * | 2017-08-29 | 2017-12-29 | 株洲时代新材料科技股份有限公司 | The parts assembly tool and method of axlebox rod |
| CN107520610B (en) * | 2017-08-29 | 2019-04-23 | 株洲时代新材料科技股份有限公司 | The components assembly tool and method of axlebox rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SOUTH CAR ZHUZHOU ELECTRIC LOCOMOTIVE CO. Free format text: FORMER NAME OR ADDRESS: ZHUZHOU ELECTRIC LOCOMOTIVE CO., LTD., NANCHE GROUP, CHINA |
|
| CP03 | Change of name, title or address |
Address after: Zhuzhou City, Hunan Province, Tian Shifeng District, zip code: 412000 Patentee after: South Locomotive & Rolling Stock Zhuzhou Power Car Co., Ltd. Address before: Zhuzhou City, Hunan Province, Tian Shifeng District, zip code: 412000 Patentee before: Zhuzhou Electric Power Locomotive Co., Ltd., China Nanche Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071128 |
|
| EXPY | Termination of patent right or utility model |