CN107461404A - Fixed hinge metal joint bearing and upper hold-down support attachment structure and attaching method thereof - Google Patents
Fixed hinge metal joint bearing and upper hold-down support attachment structure and attaching method thereof Download PDFInfo
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- CN107461404A CN107461404A CN201610384871.7A CN201610384871A CN107461404A CN 107461404 A CN107461404 A CN 107461404A CN 201610384871 A CN201610384871 A CN 201610384871A CN 107461404 A CN107461404 A CN 107461404A
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- metal joint
- cover
- down support
- outer rolling
- upper hold
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/10—Railway vehicles
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- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses the fixed hinge metal joint bearing and upper hold-down support attachment structure and attaching method thereof of one kind, fixed hinge metal joint bearing includes upper hold-down support, also include monoblock type metal joint bearing, it includes the outer cover for seat of metal joint, the outer rolling ball cover being arranged on inside the outer cover for seat of metal joint, the interior roller ball being arranged on inside outer rolling ball cover and is arranged on the outer anti-wearing liner one between cover for seat and outer rolling ball cover of metal joint；Pass through sphere-contact between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one, cover for seat outside metal joint and interior roller ball are linked into an integrated entity by screw, so as to which outer rolling ball cover and anti-wearing liner one are pressed into contact with outside metal joint in cover for seat using interior roller ball；It is screwed into using connecting screw through upper hold-down support in outer rolling ball cover, so as to which monoblock type metal joint bearing and upper hold-down support be connected.The present invention changes traditional center pin connected construction, reduces installing space demand.
Description
Technical field
Attachment structure of hinge and attaching method thereof is fixed the present invention relates to a kind of low floor vehicle, more particularly to a kind of low floor vehicle fixes attachment structure of metal joint bearing and upper hold-down support and attaching method thereof in hinge.
Background technology
Low floor vehicle light rail car, hereinafter referred to as low floor vehicle, it is modern city novel traffic equipment, typically has 3,5,7 marshallings, connected by articulated system device, vehicle is less than 40 centimetres away from orbital plane.Car body articulated mounting is the pith of urban low-floor car car body connection, and now with extensive use of the low floor vehicle in Europe, the country is also promoting, so the market demand of articulated mounting is also increasing.
Car body articulated mounting is arranged in car body both ends coupling part, it is general to use hinge fit system up and down, its major function is to connect more piece low floor vehicle, while vehicle traction and brake force delivery request is met, adapt to vehicle and pass through minor radius level curve and the needs of vertical curve in urban transportation.Car body articulated mounting typically has following several forms：Fixed hinge, freely cut with scissors and rotating hinge.Fixed articulated mounting therein is the lower articulated mounting for connecting two adjacent sections low floor vehicle, function is to limit the translation in X, Y, Z axis direction, but it can be rotated around X, Y, Z axis direction, vertical force can be born, most longitudinal force and cross force are transmitted, its motor function relies primarily on the realization of metal joint bearing.
It is to be connected by centrepin directly with metal joint bearing hinge connection between metal joint bearing and upper bracket by centrepin using upper and lower bearing that existing low floor vehicle, which fixes hinge hinge method,.But it is this structure connected between metal joint bearing and upper bracket can make it that the structure of whole fixed hinge becomes complex or the degree of modularity is not high using centrepin, the needs of installing space are larger；In addition, fixed articulated mounting usually requires periodic maintenance, clean, check lubrication and motion conditions, can also cause that the dismounting difficulty for fixing hinge device is big using existing attachment structure, cause maintenance difficulties also can be larger.
Notification number is CN201442585U, and the day for announcing discloses a kind of fixed hinging device for hinging urban low-floor railway vehicles for the Chinese utility model patent on April 28th, 2010, and upper half ball pivot, upper gib head and centrepin are fixed as one；Lower half ball pivot and running proof watt is separately fixed inside and outside lower gib head on face；Lower half ball pivot inner surface is provided with abrasion bushing, wears away the interior concave spherical surface of bushing and is engaged with the semi-convex sphere of upper half ball pivot；The back of the body that runs proof is connected as one by screw thread and centrepin, and the outer convex spherical to run proof watt is engaged with the interior concave spherical surface for the back of the body that runs proof.
Notification number is CN201009892Y, the day for announcing discloses the lower hinge device during a kind of low-floor light rail vehicle is hinged for the Chinese utility model patent on January 23rd, 2008, include lower hinge link arm, locked spacer, screw, bolt, packing ring, bolt, locked spacer, steel wire, bearing pin, upper joint bearing, ShiShimonoseki bearings, lower hinge link arm, upper joint bearing is combined into a compound hinged pair with ShiShimonoseki bearings by bearing pin and lower hinge link arm and lower hinge link arm, upper joint bearing and ShiShimonoseki bearings are one group of oscillating bearings with the centre of sphere, the outer ring of ShiShimonoseki bearings is connected through a screw thread secondary connection with bearing pin.
Notification number is CN103909949A, and the day for announcing discloses a kind of low-floor rail vehicle linkwork for the Chinese invention patent on July 9th, 2014, including interior ball coordinates the ball pivot, interior ball pivot joint chair, spherical shell hinged seat, the gripping sleeve that form with spherical shell；Wherein spherical shell hinged seat is ring-type, and spherical shell is placed in spherical shell hinged seat and is interference fitted therebetween；Interior ball upper and lower ends are plane, and interior ball pivot joint chair is U-shaped, and U-shaped both sides inwall pushes down the interior plane of ball two, and interior ball and U-shaped side wall corresponding with the interior plane of ball two are provided with through hole, and gripping sleeve is respectively placed in the hole both ends and is fixedly connected with interior ball with interior ball pivot joint chair.
Notification number is CN204801815U, the day for announcing discloses articulated mounting under a kind of rail vehicle for the Chinese utility model on November 25th, 2015, including the fixed seat for being fixedly linked with the first car body in adjacent two car body, for the bearing block being fixedly linked with the first car body in adjacent two car body；Built with self-lubricating bearing, jackshaft and the fixed seat through the self-lubricating bearing are fixedly linked the bearing block.
In fixed hinge in above-mentioned patent document, it is to use center pin connection between metal joint bearing and upper bracket, so may result in the structure of whole fixed hinge becomes complex, dismounting difficulty of the installing space greatly and between metal joint bearing and upper bracket is big, so as to cause maintenance difficulties also can be larger.
To sum up, how to design a kind of new low floor vehicle and fix attachment structure of metal joint bearing and upper hold-down support and attaching method thereof in hinge, to change traditional center pin connected construction, so that the structure of whole fixed hinge becomes relatively simple, reduce the demand of installing space and reduce the dismounting difficulty between metal joint axle and upper hold-down support, be to be badly in need of the technical problem of solution so as to reduce maintenance difficulties.
The content of the invention
The technical problems to be solved by the invention are for defect present in prior art, there is provided a kind of low floor vehicle fix in hinge the attachment structure of metal joint bearing and upper hold-down support and its, that it changes traditional center pin connected construction, so that the structure of whole fixed hinge becomes relatively simple, reduce the demand of installing space and reduce the dismounting difficulty between metal joint axle and upper hold-down support, reduce maintenance difficulties.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of low floor vehicle fixes the attachment structure of metal joint bearing and upper hold-down support in hinge, including upper hold-down support, it also includes monoblock type metal joint bearing, and the monoblock type metal joint bearing includes the outer cover for seat of metal joint, the outer rolling ball cover being arranged on inside the outer cover for seat of metal joint, the interior roller ball being arranged on inside outer rolling ball cover and is arranged on the outer anti-wearing liner one between cover for seat and outer rolling ball cover of metal joint；Pass through sphere-contact between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one, cover for seat outside metal joint and interior roller ball are linked into an integrated entity by screw, so as to which outer rolling ball cover and anti-wearing liner one are pressed into contact with outside metal joint in cover for seat using interior roller ball；It is screwed into using connecting screw through upper hold-down support in outer rolling ball cover, so as to which monoblock type metal joint bearing and upper hold-down support be connected.
Preferably, the outer cover for seat of metal joint include one end open, the body that other end is remained silent and be arranged in body remain silent one end body inner bottom part on boss；The hollow axially extended portion that outer rolling ball cover includes the base of ring-type and is arranged on base, the medial surface in axially extended portion and the lateral surface in axially extended portion are respectively provided with into sphere, interior roller ball is round table-like, the medial surface in the axially extended portion of outer rolling ball cover and the outer peripheral face sphere-contact of interior roller ball, the lateral surface in the axially extended portion of outer rolling ball cover and the inner peripheral surface sphere-contact of anti-wearing liner one；Screwed hole is provided with the boss of cover for seat outside metal joint, is screwed into by screw through interior roller ball in the screwed hole on boss, so as to which cover for seat outside interior roller ball and metal joint be connected.
Preferably, installation groove is provided with the bottom of upper hold-down support, tapped through hole is also provided with the bottom land of the installation groove, rolled also be provided with screwed hole on the base of ball cover outside；The base of outer rolling ball cover is caught in installation groove, it is screwed into using connecting screw from the top side of upper hold-down support through the tapped through hole in the screwed hole on the base of outer rolling ball cover, so as to which monoblock type metal joint bearing and upper hold-down support be connected.
Preferably, the tapped through hole of upper hold-down support is counterbore shape, and the countersunk head portion of the tapped through hole of counterbore shape is located at the top side of upper hold-down support, after connecting screw connects monoblock type metal joint bearing and upper hold-down support, the head of connecting screw is located in the countersunk head portion of the tapped through hole of counterbore shape.
Preferably, bottom land through hole is also provided with the bottom land of the installation groove, bottom land through hole is located at the position directly above of interior roller ball in monoblock type metal joint bearing, and tapped through hole is distributed in the surrounding position of bottom land through hole.
Preferably, dust excluding plate mounting groove is provided with the medial surface of bottom land through hole and close to the top side of upper hold-down support, dust excluding plate is provided with the dust excluding plate mounting groove.
Preferably, an anti-wearing liner two is also set up between interior roller ball and outer rolling ball cover, passes through sphere-contact between outer rolling ball cover and anti-wearing liner two and between interior roller ball and anti-wearing liner two.
Preferably, gap adjust pad is provided between the boss of cover for seat outside interior roller ball and metal joint.
Invention additionally discloses the fixed hinge metal joint bearing of one kind and upper hold-down support connection method, and it is that fixed hinge metal joint bearing is arranged into three cover for seat outside metal joint, outer rolling ball cover and interior roller ball parts；Outer rolling ball cover is arranged on to the inside of cover for seat outside metal joint, interior roller ball is arranged on to the inside of outer rolling ball cover, also sets up an anti-wearing liner one between cover for seat and outer rolling ball cover outside metal joint；By between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one by sphere-contact, the metal joint bearing for formula that cover for seat, outer rolling ball cover, interior roller ball and anti-wearing liner one outside metal joint formed a whole by screw；Connecting screw is recycled to be screwed into through lower hold-down support in the outer cover for seat of metal joint, so as to which monoblock type metal joint bearing and lower hold-down support be connected.
Preferably, as the bearing capacity ＜ 100Mpa of fixed hinge, anti-wearing liner one uses nylon material, as bearing capacity≤160Mpa of 100Mpa≤fixation hinge, anti-wearing liner one uses engineering plastics, during the bearing capacity ＞ 160Mpa of fixed hinge, anti-wearing liner one uses copper-based insert material.
The beneficial effects of the present invention are：The present invention is the traditional central pin structure connection method of change, by the integral structure of metal joint design bearing, when connecting connected car body, metal joint bearing is first assembled into a modular entirety, it is connected again by the metal joint bearing of monoblock type with upper hold-down support, so as to which adjacent car body be connected, this brand-new fixed hinge hinge method can meet that vehicle runs needs, cause that whole fixed hinge articulated mounting is simple and compact for structure again, reduce the demand of installing space and reduce the assembling of whole fixed hinge, dismounting difficulty, reduce maintenance difficulties.By structure design, the present invention need to only be dismounted when to being dismounted between upper hold-down support and metal joint bearing with common spanner to screw, it is possible to easily complete upper dismounting work between hold-down support and metal joint bearing.Bottom land through hole is set in upper hold-down support, is easy to mitigate the weight of whole upper hold-down support and be easy to disassemble between upper hold-down support and metal joint bearing.By set up anti-wearing liner two and can adjust anti-wearing liner two thickness gap adjust pad so that the present invention adapt to different operating modes, so as to substantially increase the present invention applicability.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of fixed hinge articulated mounting in the embodiment of the present invention 1；
Fig. 2 is the main structure diagram of fixed hinge articulated mounting in the embodiment of the present invention 1；
Fig. 3 is the cross section structure diagram of the line A-A along Fig. 2；
Fig. 4 is cross section structure diagram of the metal joint bearing along cover for seat axial direction outside metal joint in the embodiment of the present invention 1；
Fig. 5 is the dimensional structure diagram of the outer cover for seat of metal joint in the embodiment of the present invention 1；
Fig. 6 is the dimensional structure diagram of the outer rolling ball cover in the embodiment of the present invention 1；
Fig. 7 is the dimensional structure diagram of the interior roller ball in the embodiment of the present invention 1；
Fig. 8 is the structural representation of the upper hold-down support in Fig. 3；
Fig. 9 is cross section structure diagram of the metal joint bearing along cover for seat axial direction outside metal joint in the embodiment of the present invention 2；
Figure 10 is cross section structure diagram of the metal joint bearing along cover for seat axial direction outside metal joint in the embodiment of the present invention 3；
Figure 11 is axially and positioned at the broken section structural representation of metal joint axle and upper hold-down support junction in the embodiment of the present invention 4 along cover for seat outside metal joint；
In figure：Hold-down support on 1., the outer cover for seat of 2. metal joints, 211. bodies, 212. boss, 213. flanges, 3. outer rolling ball covers, 311. bases, 312. axially extended portions, roller ball in 4., 5. anti-wearing liners one, 6. screws, 7. connecting screws, 8. lower hold-down support, 9. screwed holes, 10. installation grooves, 11. tapped through holes, 12. bottom land through hole, 13. dust excluding plate mounting grooves, 14. dust excluding plates, 15. sealing rings, 16. anti-wearing liner two, 17. snap rings, 18. gap adjust pads.
Embodiment
Further details of elaboration is done to technical scheme with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：As shown in Figures 1 to 4, a kind of low floor vehicle fixes the attachment structure of metal joint bearing and upper hold-down support in hinge, including upper hold-down support 1, also include monoblock type metal joint bearing, the monoblock type metal joint bearing includes the outer cover for seat 2 of metal joint, the outer rolling ball cover 3 being arranged on inside the outer cover for seat 2 of metal joint, the interior roller ball 4 being arranged on inside outer rolling ball cover 3 and is arranged on the outer anti-wearing liner 1 between cover for seat 2 and outer rolling ball cover 3 of metal joint；Pass through sphere-contact between interior roller ball 4 and outer rolling ball cover 3 and between outer rolling ball cover 3 and anti-wearing liner 1, cover for seat outside metal joint 2 and interior roller ball 4 are linked into an integrated entity by screw 6, so as to which outer rolling ball cover 3 and anti-wearing liner 1 are pressed into contact with outside metal joint in cover for seat 2 using interior roller ball 4；It is screwed into using connecting screw 7 through upper hold-down support 1 in outer rolling ball cover 3, so as to which monoblock type metal joint bearing and upper hold-down support 1 be connected.The metal joint bearing that existing low floor vehicle is fixed in hinge is generally according to different load and the requirement for crossing sweep size, there is different structures, due to being mainly applied to Urban Transportation, it requires that sweep was as far as possible small, while consider city rider's uninterrupted to design.As the core component of fixed articulated system, it requires high in terms of bearing capacity and motion transmission, fixed be hinged three-dimensional stand under load, it is desirable to which metal joint bearing is meeting outside the common load of normal operation, also needs the load that can withstand shocks；Metal joint possesses relative motion function in three-dimensional simultaneously, turning during adapting to train operation, rocks, tilts and require noiseless when the influence of car body deformation and operation, no wriggling.Again because this kind of metal joint bearing is applied on urban low-floor car articulated system more, also very harsh is required to security performance.Generally speaking the metal joint bearing development difficulty is larger, but is the indispensable part of low floor vehicle articulated mounting.Therefore, in view of the design feature of existing metal joint bearing, mostly it is to be connected metal joint bearing and upper hold-down support using centrepin in existing fixed hinge device, but so also bring some problems, and in the present embodiment, to change traditional central pin structure connection method, by the integral structure of metal joint design bearing, when connecting connected car body, metal joint bearing is first assembled into a modular entirety, the metal joint bearing of monoblock type is got up with upper hold-down support with screw connection again, this brand-new attachment structure can meet that vehicle runs needs, cause that whole fixed hinge articulated mounting is simple and compact for structure again, reduce the demand of installing space and reduce the assembling of whole fixed hinge, dismantle difficulty, reduce maintenance difficulties.In addition, metal joint is as a complete overall structure, so that metal joint bearing has complete performance parameter request, change traditional structure pattern, the degree of modularity is higher, the transmission of power and motion is also beneficial to, have good motion deflection capacity guarantee safety and steady passes through level curve and vertical curve.In addition, pass through above-mentioned design, so that the present embodiment possesses larger sphere-contact structure, metal joint bearing portions, crucial functional part when being excessively horizontal fixed articulated mounting and vertical curve, the control to motion is realized by the rotation of sphere-contact bearing, sphere-contact area is also bigger, its self-centering and low-speed running ability are better, and pin shaft structure has certain limitation in this respect, and sphere-contact structure larger in the present embodiment causes metal joint bearing to have good self-centering, low-speed running ability and good low speed lubricant effect.In addition, setting of the anti-wearing liner in said structure, whole metal joint bearing movable can be caused to get up more steady, security performance is higher and can reduce noise, and without unfavorable wriggling, not only security performance height can also improve the service life of product.
Anti-wearing liner 1 is hollow circular cone shape close to one end of lower hold-down support 8, is hollow cylindric, the copper-based PTFE inserts of the use of anti-wearing liner 1, copper-base graphite insert, engineering plastics or nylon close to one end of upper hold-down support 1.Many in existing metal joint bearing is all to use grease lubrication or general solid lubrication, and the wear-resistant lubricity and bearing capacity of such metal joint bearing have certain deficiency, the risk for having corrosion to the metal parts of mutual cooperation be present；Lubricity may be caused necessarily to influence when cleaning vehicle simultaneously, and the present embodiment abandons the mode of conventional grease lubrication and general fixed lubrication, using aforesaid way, so that anti-wearing liner one is not only to be used as wear-resistant sleeve to use, it is also simultaneously lubricant body, therefore there is extremely low coefficient of friction and evaporation loss, it is easy to maintenance reliable, with the features such as excellent water-fast, steam, gentle acid-base property liquid flushing, service life is long；These same features cause metal joint bearing to realize self-lubricating, it is not necessary to which regularly demolition and maintenance and cleaning are more convenient, substantially reduce maintenance cost and so that metal joint bearing adapts to various environment operations, especially service requirement under low temperature.
Selection of the applicant to the material of anti-wearing liner one have also been made corresponding research：It is found by the applicant that when fixed hinge articulated mounting is applied to paddle more work condition environment, anti-wearing liner one is more suitable using copper-base graphite insert, because if under more work condition environment of paddling, when the copper-based PTFE inserts of material selection of anti-wearing liner one, engineering plastics or nylon, due to the water imbibition of material, dimensional discrepancy can be caused, influence product structure, while the wearability and lubricant effect of material can be reduced after getting wet.It is also different, in general bearing capacity to choosing for the material of anti-wearing liner one in addition, according to the difference of the fixed carrying scope for cutting with scissors articulated mounting：Copper-based insert material ＞ engineering plastics ＞ nylon, i.e. when bearing capacity requirement can use nylon material in 100Mpa, engineering plastics are used when bearing capacity requirement is 100 to 160Mpa, copper-based insert material is used when bearing capacity requirement is more than 160Mpa.
As shown in Figures 4 to 7, the outer cover for seat 2 of metal joint include one end open, the body 211 that other end is remained silent and be arranged in body remain silent one end the inner bottom part of body 211 on boss 212；The hollow axially extended portion 312 that outer rolling ball cover 3 includes the base 311 of ring-type and is arranged on base 311, the medial surface in axially extended portion 312 and the lateral surface in axially extended portion 312 are respectively provided with into sphere, interior roller ball 4 is arranged to sphere for the outer peripheral face of round table-like and round table-like interior roller ball 4, the medial surface in the axially extended portion 312 of outer rolling ball cover and the outer peripheral face sphere-contact of interior roller ball 4, the lateral surface in the axially extended portion 312 of outer rolling ball cover and the inner peripheral surface sphere-contact of anti-wearing liner 1；Outside metal joint screwed hole 9 is provided with the boss 212 of cover for seat, it is screwed into by screw 6 through interior roller ball 4 in the screwed hole 9 on boss 212, so as to which cover for seat 2 outside interior roller ball 4 and metal joint be connected, outer rolling ball cover 3 is compressed using interior roller ball 4, outer rolling ball cover 3 compresses on the medial surface of body 211 of the cover for seat outside metal joint of anti-wearing liner 1 again.After being attached using existing center pin connected construction, when that need to be dismounted to metal joint bearing, specific purpose tool need to be used, add the difficulty of dismounting, the present embodiment is when dismounting metal joint bearing, screw need to only be dismounted with common spanner, it is possible to easily complete the dismounting work of metal joint bearing.To ensure the location fit requirement outside metal joint between the boss 212 and interior roller ball 4 of cover for seat, the groove that is engaged with boss 212 can be provided with the upper bottom portion of round table-like interior roller ball 4, during connection, boss 212, which is caught in groove, to carry out positioning assembling and coordinate.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 8, flange 213 is provided with outside metal joint on the outer peripheral face of the body 211 of cover for seat and positioned at body open at one end, screwed hole 9 is provided with flange 213, it is screwed into by connecting screw 7 through lower hold-down support 8 in the screwed hole 9 on the flange 213 of cover for seat body outside metal joint, so as to which monoblock type metal joint bearing and lower hold-down support 8 be connected.
Installation groove 10 is provided with the bottom of upper hold-down support 1, tapped through hole 11 is also provided with the bottom land of the installation groove 10, rolls also be provided with screwed hole 9 on the base 311 of ball cover outside；The base 311 of outer rolling ball cover is caught in installation groove 10, in the screwed hole 9 being screwed into using connecting screw 7 from the top side of upper hold-down support through the tapped through hole 11 on the base 311 of outer rolling ball cover, so as to which monoblock type metal joint bearing and upper hold-down support 1 be connected.After adjacent car body being connected using existing central pin structure, when need to be to being dismounted between upper hold-down support and metal joint bearing, specific purpose tool need to be used, add the difficulty of dismounting, the present embodiment between upper hold-down support and metal joint bearing when to dismounting, screw need to only be dismounted with common spanner, it is possible to easily complete upper dismounting work between hold-down support and metal joint bearing.During work, monoblock type metal joint bearing plays a part of transmitting power by the interaction of cover for seat outside outer rolling ball cover and upper hold-down support, metal joint and lower hold-down support and the fixed hinge device of limitation moves, metal joint bearing can be rotated around X, Y, Z axis direction, but the translation in limitation X, Y, Z axis direction, and larger radial load can be born so that level curve and vertical curve can be crossed with safety and steady when vehicle is run.
Bottom land through hole 12 is also provided with the bottom land of the installation groove 10, bottom land through hole 12 is located at the position directly above of interior roller ball 4 in monoblock type metal joint bearing, and tapped through hole 11 is distributed in the surrounding position of bottom land through hole 12.Bottom land through hole is set mainly there are two effects here, first, in order to mitigate the weight of whole upper hold-down support, second, for the ease of monoblock type metal joint bearing is disassembled from upper hold-down support, because during installation, it is likely to be between the base and installation groove of outer rolling ball cover by being interference fitted connection, therefore when disassembled, first connecting screw can be back-outed, again monoblock type metal joint bearing is gently hammered with hammer from bottom land through hole, hold-down support is disengaged it from, more rapidly can just be separated monoblock type metal joint bearing with upper hold-down support.
Dust excluding plate mounting groove 13 is provided with the medial surface of bottom land through hole 12 and close to the top side of upper hold-down support 1, dust excluding plate 14 is provided with the dust excluding plate mounting groove 13.For dust excluding plate by screw connection on the top of upper hold-down support, it can prevent dust from being dropped to from bottom land through hole in metal joint bearing.
As shown in Figure 3 and Figure 4, seal groove is also provided with outside metal joint on the medial surface of the body 211 of cover for seat and positioned at body open at one end, sealing ring 15 is provided with seal groove, one end of sealing ring 15 is arranged in seal groove, the lateral surface in the other end of sealing ring 15 portion 312 axially extended with outer rolling ball cover is in contact, so that sealing ring 15, which blocks, in the top position of anti-wearing liner 1, plays dust-proof effect.Sealing ring 15 can use the materials such as polyurethane to be made.
A kind of fixed hinge metal joint bearing and upper hold-down support connection method is also disclosed in the present embodiment, and it is that fixed hinge metal joint bearing first is arranged into three cover for seat outside metal joint, outer rolling ball cover and interior roller ball parts；Outer rolling ball cover is arranged on to the inside of cover for seat outside metal joint, interior roller ball is arranged on to the inside of outer rolling ball cover, also sets up an anti-wearing liner one between cover for seat and outer rolling ball cover outside metal joint；By between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one by sphere-contact, the metal joint bearing for formula that cover for seat, outer rolling ball cover, interior roller ball and anti-wearing liner one outside metal joint formed a whole by screw；Connecting screw is recycled to be screwed into through lower hold-down support in the outer cover for seat of metal joint, so as to which monoblock type metal joint bearing and lower hold-down support be connected.
Embodiment 2：As shown in figure 9, compared with Example 1, difference is：An anti-wearing liner 2 16 is also set up between interior roller ball 4 and outer rolling ball cover 3, passes through sphere-contact between outer rolling ball cover 3 and anti-wearing liner 2 16 and between interior roller ball 4 and anti-wearing liner 2 16.Using copper-based PTFE inserts, copper-base graphite insert, engineering plastics or nylon, the selection of the material of anti-wearing liner two is not repeated anti-wearing liner 2 16 herein as with the selection of the material of the anti-wearing liner one described in embodiment 1 being.Pass through the setting of anti-wearing liner one and anti-wearing liner two, so that the metal joint bearing in the present embodiment has excellent good friction resistant lubrication and bearing capacity, extremely low coefficient of friction, with good self-lubricating effect and higher bearing capacity, also there is good lubricant effect in the case of low-speed running and cold operation, the effect of maintenance self-lubricating can be reached.
Anti-wearing liner 2 16 is arranged between the medial surface in the axially extended portion 312 of outer rolling ball cover and the outer peripheral face of interior roller ball 4 and anti-wearing liner 2 16 exposes to the lower bottom part of round table-like interior roller ball 4 close to one end of upper hold-down support 1, so sets wear-resisting and lubrication the effect that can be further ensured that herein.Roll outside and be provided with annular groove on the inside portion of ball cover base 311, snap ring 17 is provided with annular groove, the one end for exposing to the anti-wearing liner 2 16 of the round table-like lower bottom part of interior roller ball 4 is in contact with snap ring 17, it can prevent the unexpected of anti-wearing liner two from beating by snap ring, ensure being normally carried out for work.
Embodiment 3：As shown in Figure 10, compared with Example 2, difference is：Outside interior roller ball 4 and metal joint gap adjust pad 18 is provided between the boss 212 of cover for seat.By adjusting the thickness of anti-wearing liner two, the gap in change between roller ball and outer rolling ball cover, so as to change the performance of metal joint bearing so that whole low floor vehicle fixes hinge and adapts to different operating modes, versatility is wider.Because the thickness by adjusting anti-wearing liner two, can change in the contact face structure size of roller ball or outer rolling ball cover, so as to change the structural strength of product, so as to adapt to the loading demands under different operating modes；In addition, the thickness by adjusting anti-wearing liner two, moreover it is possible to adapt to the friction requirements under different operating modes.
Embodiment 4：As shown in figure 11, compared with Example 1, difference is：The tapped through hole 11 of upper hold-down support 1 is counterbore shape, and the countersunk head portion of the tapped through hole 11 of counterbore shape is located at the top side of upper hold-down support 1, after connecting screw 7 connects monoblock type metal joint bearing and upper hold-down support 1, the head of connecting screw 7 is located in the countersunk head portion of the tapped through hole 11 of counterbore shape, so can further reduce the demand of installing space and be avoided that the head of exposed connecting screw and miscellaneous part collide.
To sum up, the present invention is the traditional central pin structure connection method of change, by the integral structure of metal joint design bearing, when connecting connected car body, metal joint bearing is first assembled into a modular entirety, it is connected again by the metal joint bearing of monoblock type with upper hold-down support, so as to which adjacent car body be connected, this brand-new fixed hinge hinge method can meet that vehicle runs needs, cause that whole fixed hinge articulated mounting is simple and compact for structure again, reduce the demand of installing space and reduce the assembling of whole fixed hinge, dismantle difficulty, reduce maintenance difficulties.By structure design, the present invention need to only be dismounted when to being dismounted between upper hold-down support and metal joint bearing with common spanner to screw, it is possible to easily complete upper dismounting work between hold-down support and metal joint bearing.Bottom land through hole is set in upper hold-down support, is easy to mitigate the weight of whole upper hold-down support and be easy to disassemble between upper hold-down support and metal joint bearing.By set up anti-wearing liner two and can adjust anti-wearing liner two thickness gap adjust pad so that the present invention adapt to different operating modes, so as to substantially increase the present invention applicability.
Above example is used for illustrative purposes only; rather than limitation of the present invention; person skilled in the relevant technique is without departing from the spirit and scope of the present invention; it can also make a variety of changes or convert; therefore all equivalent technical schemes should also belong to protection scope of the present invention, and protection scope of the present invention should be limited by each claim.
Claims (10)
1. the fixed hinge metal joint bearing of one kind and upper hold-down support attachment structure, including upper hold-down support, it is characterised in that：Also include monoblock type metal joint bearing, the monoblock type metal joint bearing includes the outer cover for seat of metal joint, the outer rolling ball cover being arranged on inside the outer cover for seat of metal joint, the interior roller ball being arranged on inside outer rolling ball cover and is arranged on the outer anti-wearing liner one between cover for seat and outer rolling ball cover of metal joint；Pass through sphere-contact between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one, cover for seat outside metal joint and interior roller ball are linked into an integrated entity by screw, so as to which outer rolling ball cover and anti-wearing liner one are pressed into contact with outside metal joint in cover for seat using interior roller ball；It is screwed into using connecting screw through upper hold-down support in outer rolling ball cover, so as to which monoblock type metal joint bearing and upper hold-down support be connected.
2. fixed hinge metal joint bearing according to claim 1 and upper hold-down support attachment structure, it is characterised in that：The outer cover for seat of metal joint include one end open, the body that other end is remained silent and be arranged in body remain silent one end body inner bottom part on boss；The hollow axially extended portion that outer rolling ball cover includes the base of ring-type and is arranged on base, the medial surface in axially extended portion and the lateral surface in axially extended portion are respectively provided with into sphere, interior roller ball is round table-like, the medial surface in the axially extended portion of outer rolling ball cover and the outer peripheral face sphere-contact of interior roller ball, the lateral surface in the axially extended portion of outer rolling ball cover and the inner peripheral surface sphere-contact of anti-wearing liner one；Screwed hole is provided with the boss of cover for seat outside metal joint, is screwed into by screw through interior roller ball in the screwed hole on boss, so as to which cover for seat outside interior roller ball and metal joint be connected.
3. fixed hinge metal joint bearing according to claim 2 and upper hold-down support attachment structure, it is characterised in that：Installation groove is provided with the bottom of upper hold-down support, tapped through hole is also provided with the bottom land of the installation groove, rolls also be provided with screwed hole on the base of ball cover outside；The base of outer rolling ball cover is caught in installation groove, it is screwed into using connecting screw from the top side of upper hold-down support through the tapped through hole in the screwed hole on the base of outer rolling ball cover, so as to which monoblock type metal joint bearing and upper hold-down support be connected.
4. fixed hinge metal joint bearing according to claim 3 and upper hold-down support attachment structure, it is characterised in that：The tapped through hole of upper hold-down support is counterbore shape, and the countersunk head portion of the tapped through hole of counterbore shape is located at the top side of upper hold-down support, after connecting screw connects monoblock type metal joint bearing and upper hold-down support, the head of connecting screw is located in the countersunk head portion of the tapped through hole of counterbore shape.
5. fixed hinge metal joint bearing according to claim 3 and upper hold-down support attachment structure, it is characterised in that：Bottom land through hole is also provided with the bottom land of the installation groove, bottom land through hole is located at the position directly above of interior roller ball in monoblock type metal joint bearing, and tapped through hole is distributed in the surrounding position of bottom land through hole.
6. fixed hinge metal joint bearing according to claim 5 and upper hold-down support attachment structure, it is characterised in that：Dust excluding plate mounting groove is provided with the medial surface of bottom land through hole and close to the top side of upper hold-down support, dust excluding plate is provided with the dust excluding plate mounting groove.
7. fixed hinge metal joint bearing and upper hold-down support attachment structure according to any one claim in claim 2 to 6, it is characterised in that：An anti-wearing liner two is also set up between interior roller ball and outer rolling ball cover, passes through sphere-contact between outer rolling ball cover and anti-wearing liner two and between interior roller ball and anti-wearing liner two.
8. fixed hinge metal joint bearing according to claim 7 and upper hold-down support attachment structure, it is characterised in that：Gap adjust pad is provided between the boss of cover for seat outside interior roller ball and metal joint.
9. the fixed hinge metal joint bearing of one kind and upper hold-down support connection method, it is characterised in that：Fixed hinge metal joint bearing is first arranged to three cover for seat outside metal joint, outer rolling ball cover and interior roller ball parts；Outer rolling ball cover is arranged on to the inside of cover for seat outside metal joint, interior roller ball is arranged on to the inside of outer rolling ball cover, also sets up an anti-wearing liner one between cover for seat and outer rolling ball cover outside metal joint；By between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one by sphere-contact, the metal joint bearing for formula that cover for seat, outer rolling ball cover, interior roller ball and anti-wearing liner one outside metal joint formed a whole by screw；Connecting screw is recycled to be screwed into through lower hold-down support in the outer cover for seat of metal joint, so as to which monoblock type metal joint bearing and lower hold-down support be connected.
10. fixed hinge metal joint bearing and upper hold-down support connection method according to claim, it is characterised in that：As the bearing capacity ＜ 100Mpa of fixed hinge, anti-wearing liner one uses nylon material, as bearing capacity≤160Mpa of 100Mpa≤fixation hinge, anti-wearing liner one uses engineering plastics, during the bearing capacity ＞ 160Mpa of fixed hinge, anti-wearing liner one uses copper-based insert material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384871.7A CN107461404A (en) | 2016-06-02 | 2016-06-02 | Fixed hinge metal joint bearing and upper hold-down support attachment structure and attaching method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384871.7A CN107461404A (en) | 2016-06-02 | 2016-06-02 | Fixed hinge metal joint bearing and upper hold-down support attachment structure and attaching method thereof |
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| CN107461404A true CN107461404A (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610384871.7A Pending CN107461404A (en) | 2016-06-02 | 2016-06-02 | Fixed hinge metal joint bearing and upper hold-down support attachment structure and attaching method thereof |
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| US5586506A (en) * | 1994-12-21 | 1996-12-24 | Aeg Schienenfahrzeuge Gmbh | Ball-and-socket coupling, particularly for railway cars |
| CN1558847A (en) * | 2001-09-28 | 2004-12-29 | ������������ʽ���� | Thrust bearing |
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Application publication date: 20171212 |