CN105822665A - Integrated metal joint bearing in low-floor vehicle fixed hinge and assembly method thereof - Google Patents
Integrated metal joint bearing in low-floor vehicle fixed hinge and assembly method thereof Download PDFInfo
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- CN105822665A CN105822665A CN201610384869.XA CN201610384869A CN105822665A CN 105822665 A CN105822665 A CN 105822665A CN 201610384869 A CN201610384869 A CN 201610384869A CN 105822665 A CN105822665 A CN 105822665A
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- metal joint
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- rolling ball
- seat
- outer rolling
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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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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses an integrated metal joint bearing in a low-floor vehicle fixed hinge and an assembly method thereof. The integrated metal joint bearing comprises a metal joint outer base cover, an outer rolling ball sleeve arranged in the metal joint outer base cover, an inner rolling ball in the outer rolling ball sleeve, and first anti-abrasion bushings between the metal joint outer base cover and the outer rolling ball sleeve. The inner rolling ball and the outer rolling ball sleeve are in spherical contact, and the outer rolling ball sleeve and the first anti-abrasion bushings are in spherical contact. The metal joint outer base cover, the outer rolling ball sleeve, the inner rolling ball and the first anti-abrasion bushings form the integrated metal joint bearing through screws. Vehicle running requirements are met, the structure of the whole fixed hinge becomes simple, the requirement of installation space is reduced, disassembly and assembly difficulty of the whole fixed hinge is reduced, and accordingly maintenance difficulty is reduced.
Description
Technical field
The present invention relates to a kind of metal joint bearing and assemble method thereof, particularly relate to monoblock type metal joint bearing and assemble method thereof in the fixing hinge of a kind of low floor vehicle.
Background technology
Low floor vehicle light rail car, hereinafter referred to as low floor vehicle, be modern city novel traffic equipment, typically have 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 that urban low-floor car car body connects, now with the low floor vehicle extensive application in Europe, domestic also in popularization, so the market demand of articulated mounting is the most increasing.
Car body articulated mounting is arranged in coupling part, car body two ends, fit system is cut with scissors in general employing up and down, its major function is to be coupled together by more piece low floor vehicle, while meeting vehicle traction and brake force delivery request, adapt to vehicle in urban transportation by minor radius level curve and the needs of vertical curve.Car body articulated mounting typically has following several form: fixing hinge, freely cut with scissors and rotating hinge.Fixing 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 can rotate around X, Y, Z axis direction, vertical force can be born, transmitting most longitudinal force and cross force, its motor function relies primarily on metal joint bearing and realizes.
Existing low floor vehicle fixing hinge hinge method is to use upper and lower bearing by centrepin directly and metal joint bearing hinge connection, centrepin is i.e. utilized to sequentially pass through upper bracket, metal joint bearing and undersetting, thus adjacent car body is coupled together, but, utilizing the existing metal joint bearing adjacent car body of incompatible connection that matches with centrepin the structure of whole fixing hinge can be made to become complex or the degree of modularity is the highest, the needs of installing space are bigger；It addition, fixing articulated mounting typically requires periodic maintenance, clean, check lubrication and motion conditions, use said structure to connect adjacent car body and the assembling of fixing hinge device, dismounting difficulty also can be made big, cause the maintenance difficulties also can be bigger.
Notification number is CN201442585U, and the day for announcing is that the Chinese utility model patent on April 28th, 2010 discloses a kind of fixed hinging device for hinging urban low-floor railway vehicles, 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 at inside and outside lower gib head on face；Lower half ball pivot inner surface is provided with abrasion lining, and the interior concave spherical surface of abrasion lining matches with the semi-convex sphere of upper half ball pivot；The back of the body that runs proof is connected as one with centrepin by screw thread, and the outer convex spherical run proof watt matches with the interior concave spherical surface carried on the back that runs proof.
Notification number is CN201009892Y, the day for announcing be the Chinese utility model patent on January 23rd, 2008 disclose a kind of low-floor light rail vehicle hinged in lower hinge device, include lower hinge link arm, locked spacer, screw, bolt, packing ring, bolt, locked spacer, steel wire, bearing pin, upper joint bearing, hypozygal bearing, lower hinge link arm, upper joint bearing is combined into a compound hinged pair by bearing pin with lower hinge link arm and lower hinge link arm with hypozygal bearing, upper joint bearing and hypozygal bearing are one group of oscillating bearings with the centre of sphere, the outer ring of hypozygal bearing is threaded connection secondary connection with bearing pin.
Notification number is CN103909949A, and the day for announcing is that the Chinese invention patent on July 9th, 2014 discloses a kind of low-floor rail vehicle linkwork, the ball pivot coordinated with spherical shell including interior ball, interior ball pivot joint chair, spherical shell hinged seat, gripping sleeve；Wherein spherical shell hinged seat is ring-type, and spherical shell is placed in spherical shell hinged seat and interference fit therebetween；The upper and lower two ends of interior ball are plane, and the both sides inwall that interior ball pivot joint chair is U-shaped, U-shaped is pushed down interior ball two plane, interior ball and the U-shaped sidewall corresponding with interior ball two plane and is provided with through hole, and gripping sleeve is respectively placed in these two ends, hole and is connected fixing to interior ball and interior ball pivot joint chair.
Notification number is CN204801815U, the day for announcing is that the Chinese utility model on November 25th, 2015 discloses articulated mounting under a kind of rail vehicle, including the fixing seat for being fixedly linked with the first car body in adjacent two car bodies, for the bearing block being fixedly linked with the first car body in adjacent two car bodies；Described bearing block is fixedly linked with described fixing seat built with self-lubricating bearing, the jackshaft through described self-lubricating bearing.
In above-mentioned patent documentation, being all to use central pin structure to connect adjacent car body, the structure that so may result in whole fixing hinge becomes complex, and installing space is big and fixing hinge assembling, dismounting difficulty are big, thus causes the maintenance difficulties also can be bigger.
To sum up, how to design metal joint bearing and assemble method thereof in the fixing hinge of a kind of novel low floor vehicle, to change the structure of traditional metal joint bearing adjacent car body in mating connection with centrepin, make to use novel metal joint bearing to after connecting adjacent car body, vehicle operation demand can be met, the structure that can make again whole fixing hinge becomes relatively simple, the demand reducing installing space and the assembling reducing whole fixing hinge, dismounting difficulty, thus reducing maintenance difficulties is to be badly in need of solving the technical problem that.
Summary of the invention
The technical problem to be solved is for defect present in prior art, monoblock type metal joint bearing and assemble method thereof in the fixing hinge of a kind of low floor vehicle is provided, that it changes the structure of traditional metal joint bearing adjacent car body in mating connection with centrepin, make to use novel metal joint bearing to after connecting adjacent car body, both vehicle operation demand had been met, the structure making again whole fixing hinge becomes relatively simple, reduce the demand of installing space and reduce the dismounting difficulty of whole fixing hinge, thus reducing maintenance difficulties.
For solving above-mentioned technical problem, the technical solution used in the present invention is: monoblock type metal joint bearing in the fixing hinge of a kind of low floor vehicle, it include the outer cover for seat of metal joint, be arranged on outer outer rolling ball cover cover for seat within of metal joint, be arranged on the interior roller ball within outer rolling ball cover and be arranged on metal joint outside anti-wearing liner one between cover for seat and outer rolling ball cover；All by sphere-contact, the metal joint bearing of the formula that outer for metal joint cover for seat, outer rolling ball cover, interior roller ball and anti-wearing liner one formed a whole by screw between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one.
Preferably, the outer cover for seat of metal joint include body that one end open, other end remain silent and be arranged in body remain silent one end body inner bottom part on boss；Outer rolling ball cover includes ring-type base and the axially extended portion of the hollow being arranged on base, the medial surface in axially extended portion is respectively provided with into sphere with the lateral surface in axially extended portion, 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；The boss of the outer cover for seat of metal joint has screwed hole, it is screwed in the screwed hole on boss through interior roller ball by screw, thus outer to interior roller ball and metal joint cover for seat is coupled together, in utilizing, outer rolling ball cover and anti-wearing liner one are pressed into contact with in the outer cover for seat of metal joint by roller ball.
Preferably, the outer peripheral face of the body of the outer cover for seat of metal joint is provided with flange, flange has screwed hole, rolls outside and on the base of ball cover, also have screwed hole；It is screwed in the screwed hole on the base of outer rolling ball cover through upper hold-down support by connecting screw one and is screwed in the screwed hole on the flange of the outer cover for seat body of metal joint through lower hold-down support by connecting screw two, thus by monoblock type metal joint bearing, upper hold-down support and lower hold-down support being coupled together.
Preferably, between interior roller ball and outer rolling ball cover, also set up an anti-wearing liner two, between outer rolling ball cover and anti-wearing liner two and between interior roller ball and anti-wearing liner two, all pass through sphere-contact.
Preferably, between medial surface and the outer peripheral face of interior roller ball in the axially extended portion that anti-wearing liner two is arranged on outer rolling ball cover and one end of anti-wearing liner two exposes to the lower bottom part of round table-like interior roller ball.
Preferably, rolling outside and be provided with annular groove on the medial part of ball cover base, be provided with snap ring in annular groove, the one end of the anti-wearing liner two exposing to round table-like interior roller ball lower bottom part contacts with snap ring.
Preferably, between the boss of the outer cover for seat of interior roller ball and metal joint, it is provided with gap and adjusts pad.
Invention additionally discloses a kind of low floor vehicle and fix the assemble method of monoblock type metal joint bearing in hinge, described assemble method is that monoblock type metal joint bearing is first arranged to the outer cover for seat of metal joint, outer rolling ball cover and three parts of interior roller ball, outer rolling ball cover is arranged on the inside of the outer cover for seat of metal joint again, interior roller ball is arranged on the inside of outer rolling ball cover, outside metal joint, also sets up an anti-wearing liner one between cover for seat and outer rolling ball cover；By between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one all by sphere-contact, the metal joint bearing of the formula that outer for metal joint cover for seat, outer rolling ball cover, interior roller ball and anti-wearing liner one formed a whole by screw.
Preferably, the outer cover for seat of metal joint include body that one end open, other end remain silent and be arranged in body remain silent one end body inner bottom part on boss；Outer rolling ball cover includes ring-type base and the axially extended portion of the hollow being arranged on base, the medial surface in axially extended portion is respectively provided with into sphere with the lateral surface in axially extended portion, 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；
The boss of the outer cover for seat of metal joint has screwed hole, it is screwed in the screwed hole on boss through interior roller ball by screw, thus outer to interior roller ball and metal joint cover for seat is coupled together, in utilizing, outer rolling ball cover and anti-wearing liner one are pressed into contact with on the medial surface of the outer cover for seat of metal joint by roller ball.
Preferably, between interior roller ball and outer rolling ball cover, also set up an anti-wearing liner two, between outer rolling ball cover and anti-wearing liner two and between interior roller ball and anti-wearing liner two, all pass through sphere-contact；Between the boss of the outer cover for seat of interior roller ball and metal joint, arrange one adjust pad for adjusting the gap of anti-wearing liner two thickness；By adjusting the thickness of anti-wearing liner two, change interior gap between roller ball and outer rolling ball cover.
The beneficial effects of the present invention is: the present invention is by integral for metal joint design bearing structure, when connecting connected car body, first metal joint bearing group is dressed up a modular entirety, it is connected with upper hold-down support and lower hold-down support by all-in-one-piece metal joint bearing again, thus adjacent car body is coupled together, this monoblock type metal joint bearing can meet vehicle and run needs, make again whole fixing hinge articulated mounting simple and compact for structure, the demand reducing installing space and the assembling reducing whole fixing hinge, dismounting difficulty, reduce maintenance difficulties.Additionally, metal joint is as a complete overall structure, metal joint bearing is made to have complete performance parameter request, change traditional structure pattern, the degree of modularity is higher, be also beneficial to the transmission of power and motion, have good motion deflection capacity ensure safety and steady by level curve and vertical curve.By the design to monoblock type metal joint bearing so that it is have bigger sphere-contact structure, there is good self-centering, low-speed running ability and good low speed lubricant effect.By anti-wearing liner setting in monoblock type metal joint bearing arrangement, whole metal joint bearing movable can be made to get up more steady, security performance is higher and can reduce noise, does not has unfavorable wriggling, and not only security performance height can also improve the service life of product.By the material selection to anti-wearing liner so that the metal joint bearing in the present invention has extremely low coefficient of friction and evaporation loss, easy to maintenance reliably have excellent water-fast, steam, a flushing of gentle Acidity of Aikalinity liquid, service life the feature such as length；These features same make metal joint bearing achieve self-lubricating, it is not necessary to regularly demolition and maintenance and cleaning are convenient, are substantially reduced maintenance cost and make metal joint bearing adapt to the operation of various environment, especially service requirement under low temperature.Metal joint bearing in the present invention can adapt to different operating modes by adjusting the thickness of anti-wearing liner two, thus substantially increase the suitability of the present invention.
Accompanying drawing explanation
Fig. 1 is to install in the embodiment of the present invention 1 low floor vehicle after monoblock type metal joint bearing to fix the perspective view of hinge；
Fig. 2 is to install in the embodiment of the present invention 1 low floor vehicle after monoblock type metal joint bearing to fix the main TV structure schematic diagram of hinge；
Fig. 3 is the sectional structure schematic diagram of line A-A along Fig. 2；
Fig. 4 is that the monoblock type metal joint bearing in the embodiment of the present invention 1 is along the metal joint sectional structure schematic diagram that cover for seat is axial outward；
Fig. 5 is the perspective view of the outer cover for seat of the metal joint in the embodiment of the present invention 1；
Fig. 6 is the perspective view of the outer rolling ball cover in the embodiment of the present invention 1；
Fig. 7 is the perspective view of the interior roller ball in the embodiment of the present invention 1；
Fig. 8 is that the monoblock type metal joint bearing in the embodiment of the present invention 2 is along the metal joint sectional structure schematic diagram that cover for seat is axial outward；
Fig. 9 is that the monoblock type metal joint bearing in the embodiment of the present invention 3 is along the metal joint sectional structure schematic diagram that cover for seat is axial outward；
In figure: 1. the outer cover for seat of metal joint, 111. bodies, 112. boss, 113. flanges, 2. outer rolling ball cover, 211. bases, 212. axially extended portions, 3. in roller ball, 4. anti-wearing liner one, 5. screw, 6. descend hold-down support, 7. go up hold-down support, 8. screwed hole, 9. sealing ring, 10. dust excluding plate, 11. connecting screws one, 12. connecting screws two, 13. anti-wearing liners two, 14. snap rings, 15. gaps adjust pad.
Detailed description of the invention
With specific embodiment technical scheme done further details of elaboration below in conjunction with the accompanying drawings.
Embodiment 1: as shown in Figures 1 to 4, monoblock type metal joint bearing in the fixing hinge of a kind of low floor vehicle, including the outer cover for seat 1 of metal joint, be arranged on the internal outer rolling ball cover 2 of the outer cover for seat 1 of metal joint, be arranged on the interior roller ball 3 within outer rolling ball cover 2 and be arranged on metal joint outside anti-wearing liner 1 between cover for seat 1 and outer rolling ball cover 2；All by sphere-contact, the metal joint bearing of the formula that outer for metal joint cover for seat 1, outer rolling ball cover 2, interior roller ball 3 and anti-wearing liner 1 formed a whole by screw 5 between interior roller ball 3 and outer rolling ball cover 2 and between outer rolling ball cover 2 and anti-wearing liner 1.Existing low floor vehicle fixes the metal joint bearing in hinge generally according to different load and the requirement crossing sweep size, there is different structures, owing to being mainly applied to Urban Transportation, it requires that sweep was the least, considered that city rider's uninterrupted designed simultaneously.As the core component of fixing articulated system, it requires height in terms of bearing capacity and motion transmission, fixing hinged three-dimensional stand under load, it is desirable to metal joint bearing is meeting outside properly functioning common load, also needs the load that can withstand shocks；Relative motor function in metal joint possesses three-dimensional simultaneously, turning during to adapt to train operation, rocks, tilts and the impact of car body deformation and require noiselessness, without wriggling when running.Again because this kind of metal joint bearing is applied on urban low-floor car articulated system more, so security performance is required the most harsh.Generally speaking this metal joint bearing development difficulty is relatively big, but is the indispensable part of low floor vehicle articulated mounting.Therefore, construction features in view of existing metal joint bearing, existing fixing hinge device is mostly to use central pin structure to connect, centrepin is utilized to sequentially pass through upper bracket, metal joint bearing and undersetting, thus adjacent car body is coupled together, but such attachment structure also brings some problems, and in the present embodiment, by integral for metal joint design bearing structure, when connecting connected car body, first metal joint bearing group is dressed up a modular entirety, it is connected with upper hold-down support and lower hold-down support by all-in-one-piece metal joint bearing again, thus adjacent car body is coupled together, so can meet vehicle and run needs, make again whole fixing hinge articulated mounting simple and compact for structure, reduce the demand of installing space and reduce the assembling of whole fixing hinge, dismounting difficulty, reduce maintenance difficulties.Additionally, metal joint is as a complete overall structure, metal joint bearing is made to have complete performance parameter request, change traditional structure pattern, the degree of modularity is higher, be also beneficial to the transmission of power and motion, have good motion deflection capacity ensure safety and steady by level curve and vertical curve.By above-mentioned design so that the present embodiment has bigger sphere-contact structure；Metal joint bearing portions, it is that fixing articulated mounting crosses functional part crucial when level and vertical curve, the control to motion is realized by the rotation of sphere-contact bearing, sphere-contact area is the biggest, its self-centering and low-speed running ability are the best, and pin shaft structure has certain limitation in this respect, and sphere-contact structure bigger in the present embodiment makes metal joint bearing have good self-centering, low-speed running ability and good low speed lubricant effect.It addition, the setting that anti-wearing liner is in said structure, whole metal joint bearing movable can be made to get up more steady, security performance is higher and can reduce noise, does not has unfavorable wriggling, and not only security performance height can also improve the service life of product.
Anti-wearing liner 1, near the circular cone shape that one end is hollow of lower hold-down support 6, is the cylindric of hollow near one end of upper hold-down support 7, and anti-wearing liner 1 uses cuprio PTFE insert, copper-base graphite insert, engineering plastics or nylon.A lot of in existing metal joint bearing is all to use grease lubrication or general solid lubrication, and wear-resistant lubricity and the bearing capacity of such metal joint bearing have certain deficiency, there is the risk having corrosion to the metal parts cooperated；Lubricity may be caused certain impact when cleaning vehicle simultaneously, and the present embodiment abandons conventional grease lubrication and the mode of general fixing lubrication, use aforesaid way, making anti-wearing liner one is not only to use as wear-resistant sleeve, also be simultaneously lubricant body, therefore there is extremely low coefficient of friction and evaporation loss, easy to maintenance reliably, there is excellent water-fast, steam, the flushing of gentle Acidity of Aikalinity liquid, service life the feature such as length；These features same make metal joint bearing achieve self-lubricating, it is not necessary to regularly demolition and maintenance and cleaning are convenient, are substantially reduced maintenance cost and make metal joint bearing adapt to the operation of various environment, especially service requirement under low temperature.
Applicant have also been made corresponding research to the choosing of material of anti-wearing liner one: it is found by the applicant that when fixing hinge articulated mounting is applied to paddle more work condition environment, anti-wearing liner one uses copper-base graphite insert the most suitable, because if under more work condition environment of paddling, during material selection cuprio PTFE insert, engineering plastics or the nylon of anti-wearing liner one, water absorption due to material, dimensional discrepancy can be caused, affect product structure, wearability and the lubricant effect of material after getting wet, can be reduced simultaneously.Additionally, difference according to the carrying scope of fixing hinge articulated mounting, choosing of material to anti-wearing liner one is also different, in general bearing capacity: cuprio insert material ＞ engineering plastics ＞ nylon, i.e. require to use nylon material in 100Mpa when bearing capacity, use engineering plastics when bearing capacity requires at 100 to 160Mpa, use cuprio insert material when bearing capacity requires more than 160Mpa.
As shown in Figures 4 to 7, the outer cover for seat 1 of metal joint include body 111 that one end open, other end remain silent and be arranged in body remain silent one end body 111 inner bottom part on boss 112；Outer rolling ball cover 2 includes the axially extended portion 212 of ring-type base 211 and the hollow being arranged on base 211, the medial surface in axially extended portion 212 is respectively provided with into sphere with the lateral surface in axially extended portion 212, interior roller ball 3 be the outer peripheral face of round table-like and interior roller ball 3 be sphere, the medial surface in the axially extended portion of outer rolling ball cover 212 and the outer peripheral face sphere-contact of interior roller ball 3, the lateral surface in the axially extended portion of outer rolling ball cover 212 and the inner peripheral surface sphere-contact of anti-wearing liner 1；The boss 112 of the outer cover for seat of metal joint has screwed hole 8, it is screwed in the screwed hole 8 on boss 112 through interior roller ball 3 by screw 5, thus outer to interior roller ball 3 and metal joint cover for seat 1 is coupled together, in utilizing, outer rolling ball cover 2 and anti-wearing liner 1 are pressed into contact with on the medial surface of the outer cover for seat body 111 of metal joint by roller ball 3.After utilizing existing central pin structure to connect adjacent car body, when metal joint bearing being dismounted, specific purpose tool need to be used, add the difficulty of dismounting, the present embodiment is when dismounting metal joint bearing, only with common spanner, screw need to be dismounted, it is possible to complete the dismounting work of metal joint bearing easily.For the location fit requirement between boss 112 and the interior roller ball 3 of the outer cover for seat of guarantee metal joint, can have, in the upper bottom portion of round table-like interior roller ball 3, the groove matched with boss 112, during connection, boss 112 snaps in and carries out location assembling cooperation in groove.
As shown in Figure 3 and Figure 4, on the medial surface of the body 111 of the outer cover for seat of metal joint and be positioned at body open at one end and also have seal groove, sealing ring 9 it is provided with in seal groove, one end of sealing ring 9 is arranged in seal groove, the lateral surface in the other end of sealing ring 9 portion axially extended with outer rolling ball cover 212 contacts, so that sealing ring 9 blocks in the top position of anti-wearing liner 1, play dust-proof effect.Sealing ring 9 can use the materials such as polyurethane to make.For preventing dust from dropping in metal joint bearing, being additionally provided with dust excluding plate 10 at the top of upper hold-down support 7, dust excluding plate 10 is connected on the top of upper hold-down support 7 by screw.
On the outer peripheral face of the body 111 of the outer cover for seat of metal joint and be positioned at body open at one end and be provided with flange 113, flange 113 has screwed hole 8, rolls outside and also have screwed hole 8 on the base 211 of ball cover 2；It is screwed in the screwed hole 8 on the base 211 of outer rolling ball cover through upper hold-down support 7 by connecting screw 1 and is screwed in the screwed hole 8 on the flange 113 of the outer cover for seat body of metal joint through lower hold-down support 6 by connecting screw 2 12, thus by monoblock type metal joint bearing, upper hold-down support 7 and lower hold-down support 6 being coupled together.After utilizing existing central pin structure to connect adjacent car body, when fixing hinge being dismounted, specific purpose tool need to be used, add the difficulty of dismounting, screw, when fixed disassembly is cut with scissors, only need to be dismounted by the present embodiment with common spanner, it is possible to completes the dismounting work of fixing hinge easily.During work, monoblock type metal joint bearing plays transmission power by the interaction of outer rolling ball cover and upper hold-down support, the outer cover for seat of metal joint and lower hold-down support and limits the effect of fixing hinge device motion, metal joint bearing can rotate around X, Y, Z axis direction, but limit the translation in X, Y, Z axis direction, and bigger radial load can be born so that can be with level curve and the vertical curve excessively of safety and steady when vehicle runs.
As shown in Figures 1 to 4, invention additionally discloses a kind of low floor vehicle and fix the assemble method of monoblock type metal joint bearing in hinge, described assemble method is that monoblock type metal joint bearing is first arranged to the outer cover for seat 1 of metal joint, outer rolling ball cover 2 and 3 three parts of interior roller ball, outer rolling ball cover 2 is arranged on the inside of the outer cover for seat 1 of metal joint again, interior roller ball 3 is arranged on the inside of outer rolling ball cover 2, outside metal joint, also sets up an anti-wearing liner 1 between cover for seat 1 and outer rolling ball cover 2；By between interior roller ball 3 and outer rolling ball cover 2 and between outer rolling ball cover 2 and anti-wearing liner 1 all by sphere-contact, the metal joint bearing of the formula that outer for metal joint cover for seat 1, outer rolling ball cover 2, interior roller ball 3 and anti-wearing liner 1 formed a whole by screw 5.
Embodiment 2: as shown in Figure 8, compared with Example 1, difference is: also set up an anti-wearing liner 2 13 between interior roller ball 3 and outer rolling ball cover 2, all passes through sphere-contact between outer rolling ball cover 2 and anti-wearing liner 2 13 and between interior roller ball 3 and anti-wearing liner 2 13.Anti-wearing liner 2 13 uses cuprio PTFE insert, copper-base graphite insert, engineering plastics or nylon, and the choosing of material with the anti-wearing liner one described in embodiment 1 of choosing of the material of anti-wearing liner two is the same, is not repeated at this.By anti-wearing liner one and the setting of anti-wearing liner two, the metal joint bearing in the present embodiment is made to have excellent good friction resistant lubrication and bearing capacity, extremely low coefficient of friction, there is good self-lubricating effect and higher bearing capacity, in the case of low-speed running and cold operation, also there is good lubricant effect, the effect of maintenance self-lubricating can be reached.
Anti-wearing liner 2 13 is arranged between medial surface and the outer peripheral face of interior roller ball 3 in the axially extended portion 212 of outer rolling ball cover 2 and anti-wearing liner 2 13 exposes to the lower bottom part of round table-like interior roller ball 3 near one end of upper hold-down support 6, so arranges the wear-resisting and effect of lubrication being further ensured that herein.
Roll outside and be provided with annular groove on the medial part of ball cover base 211, snap ring 14 it is provided with in annular groove, the one end of the anti-wearing liner 2 13 exposing to round table-like interior roller ball lower bottom part contacts with snap ring 14, can be prevented the accident of anti-wearing liner two from beating by snap ring, it is ensured that being normally carried out of work.
Embodiment 3: as it is shown in figure 9, compared with Example 2, difference is: be provided with gap between the boss 112 of the outer cover for seat of interior roller ball 3 and metal joint and adjust pad 15.By adjusting the thickness of anti-wearing liner two, changing interior gap between roller ball and outer rolling ball cover, thus change the performance of metal joint bearing and make whole low floor vehicle fix hinge and adapt to different operating modes, versatility is wider.This is because by the thickness adjusting anti-wearing liner two, roller ball or the contact face structure size of outer rolling ball cover in changing, thus change the structural strength of product, thus adapt to the loading demands under different operating mode；It addition, by the thickness adjusting anti-wearing liner two, moreover it is possible to adapt to the friction requirements under different operating mode.
To sum up, the present invention is by integral for metal joint design bearing structure, when connecting connected car body, first metal joint bearing group is dressed up a modular entirety, it is connected with upper hold-down support and lower hold-down support by all-in-one-piece metal joint bearing again, thus adjacent car body is coupled together, this monoblock type metal joint bearing can meet vehicle and run needs, make again whole fixing hinge articulated mounting simple and compact for structure, the demand reducing installing space and the assembling reducing whole fixing hinge, dismounting difficulty, reduce maintenance difficulties.Additionally, metal joint is as a complete overall structure, metal joint bearing is made to have complete performance parameter request, change traditional structure pattern, the degree of modularity is higher, be also beneficial to the transmission of power and motion, have good motion deflection capacity ensure safety and steady by level curve and vertical curve.By the design to monoblock type metal joint bearing so that it is have bigger sphere-contact structure, there is good self-centering, low-speed running ability and good low speed lubricant effect.By anti-wearing liner setting in monoblock type metal joint bearing arrangement, whole metal joint bearing movable can be made to get up more steady, security performance is higher and can reduce noise, does not has unfavorable wriggling, and not only security performance height can also improve the service life of product.By the material selection to anti-wearing liner so that the metal joint bearing in the present invention has extremely low coefficient of friction and evaporation loss, easy to maintenance reliably have excellent water-fast, steam, a flushing of gentle Acidity of Aikalinity liquid, service life the feature such as length；These features same make metal joint bearing achieve self-lubricating, it is not necessary to regularly demolition and maintenance and cleaning are convenient, are substantially reduced maintenance cost and make metal joint bearing adapt to the operation of various environment, especially service requirement under low temperature.Metal joint bearing in the present invention can adapt to different operating modes by adjusting the thickness of anti-wearing liner two, thus substantially increase the suitability of the present invention.
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; can also make a variety of changes or convert; the technical scheme of the most all equivalents also should belong to protection scope of the present invention, and protection scope of the present invention should be limited by each claim.
Claims (10)
1. monoblock type metal joint bearing in the fixing hinge of a low floor vehicle, it is characterised in that: include the outer cover for seat of metal joint, be arranged on outer outer rolling ball cover cover for seat within of metal joint, be arranged on the interior roller ball within outer rolling ball cover and be arranged on metal joint outside anti-wearing liner one between cover for seat and outer rolling ball cover；All by sphere-contact, the metal joint bearing of the formula that outer for metal joint cover for seat, outer rolling ball cover, interior roller ball and anti-wearing liner one formed a whole by screw between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one.
Monoblock type metal joint bearing in the fixing hinge of low floor vehicle the most according to claim 1, it is characterised in that: the outer cover for seat of metal joint include body that one end open, other end remain silent and be arranged in body remain silent one end body inner bottom part on boss；Outer rolling ball cover includes ring-type base and the axially extended portion of the hollow being arranged on base, the medial surface in axially extended portion is respectively provided with into sphere with the lateral surface in axially extended portion, 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；The boss of the outer cover for seat of metal joint has screwed hole, it is screwed in the screwed hole on boss through interior roller ball by screw, thus outer to interior roller ball and metal joint cover for seat is coupled together, in utilizing, outer rolling ball cover and anti-wearing liner one are pressed into contact with in the outer cover for seat of metal joint by roller ball.
Monoblock type metal joint bearing in the fixing hinge of low floor vehicle the most according to claim 2, it is characterized in that: on the outer peripheral face of the body of the outer cover for seat of metal joint, be provided with flange, flange has screwed hole, rolls outside and on the base of ball cover, also have screwed hole；It is screwed in the screwed hole on the base of outer rolling ball cover through upper hold-down support by connecting screw one and is screwed in the screwed hole on the flange of the outer cover for seat body of metal joint through lower hold-down support by connecting screw two, thus by monoblock type metal joint bearing, upper hold-down support and lower hold-down support being coupled together.
Monoblock type metal joint bearing in the fixing hinge of low floor vehicle the most according to claim 2, it is characterized in that: between interior roller ball and outer rolling ball cover, also set up an anti-wearing liner two, between outer rolling ball cover and anti-wearing liner two and between interior roller ball and anti-wearing liner two, all pass through sphere-contact.
Monoblock type metal joint bearing in the fixing hinge of low floor vehicle the most according to claim 4, it is characterised in that: anti-wearing liner two is arranged between medial surface and the outer peripheral face of interior roller ball in the axially extended portion of outer rolling ball cover and one end of anti-wearing liner two exposes to the lower bottom part of round table-like interior roller ball.
Monoblock type metal joint bearing in the fixing hinge of low floor vehicle the most according to claim 5, it is characterized in that: roll outside and be provided with annular groove on the medial part of ball cover base, being provided with snap ring in annular groove, the one end of the anti-wearing liner two exposing to round table-like interior roller ball lower bottom part contacts with snap ring.
7. according to monoblock type metal joint bearing in the fixing hinge of the low floor vehicle described in any one claim in claim 4 to 6, it is characterised in that: between the boss of the outer cover for seat of interior roller ball and metal joint, it is provided with gap adjusts pad.
8. a low floor vehicle fixes the assemble method of monoblock type metal joint bearing in hinge, it is characterized in that: described assemble method is that monoblock type metal joint bearing is first arranged to the outer cover for seat of metal joint, outer rolling ball cover and three parts of interior roller ball, outer rolling ball cover is arranged on the inside of the outer cover for seat of metal joint again, interior roller ball is arranged on the inside of outer rolling ball cover, outside metal joint, also sets up an anti-wearing liner one between cover for seat and outer rolling ball cover；By between interior roller ball and outer rolling ball cover and between outer rolling ball cover and anti-wearing liner one all by sphere-contact, the metal joint bearing of the formula that outer for metal joint cover for seat, outer rolling ball cover, interior roller ball and anti-wearing liner one formed a whole by screw.
Assemble method the most according to claim 8, it is characterised in that: the outer cover for seat of metal joint include body that one end open, other end remain silent and be arranged in body remain silent one end body inner bottom part on boss；Outer rolling ball cover includes ring-type base and the axially extended portion of the hollow being arranged on base, the medial surface in axially extended portion is respectively provided with into sphere with the lateral surface in axially extended portion, 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；
The boss of the outer cover for seat of metal joint has screwed hole, it is screwed in the screwed hole on boss through interior roller ball by screw, thus outer to interior roller ball and metal joint cover for seat is coupled together, in utilizing, outer rolling ball cover and anti-wearing liner one are pressed into contact with on the medial surface of the outer cover for seat of metal joint by roller ball.
Assemble method the most according to claim 9, it is characterised in that: between interior roller ball and outer rolling ball cover, also set up an anti-wearing liner two, between outer rolling ball cover and anti-wearing liner two and between interior roller ball and anti-wearing liner two, all pass through sphere-contact；Between the boss of the outer cover for seat of interior roller ball and metal joint, arrange one adjust pad for adjusting the gap of anti-wearing liner two thickness；By adjusting the thickness of anti-wearing liner two, change interior gap between roller ball and outer rolling ball cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384869.XA CN105822665A (en) | 2016-06-02 | 2016-06-02 | Integrated metal joint bearing in low-floor vehicle fixed hinge and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384869.XA CN105822665A (en) | 2016-06-02 | 2016-06-02 | Integrated metal joint bearing in low-floor vehicle fixed hinge and assembly method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105822665A true CN105822665A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610384869.XA Pending CN105822665A (en) | 2016-06-02 | 2016-06-02 | Integrated metal joint bearing in low-floor vehicle fixed hinge and assembly method thereof |
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| CN (1) | CN105822665A (en) |
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| CN106763148A (en) * | 2017-03-28 | 2017-05-31 | 京信通信***（中国）有限公司 | A kind of anti-avulsion sliding bearing and antenna |
| CN107165935A (en) * | 2017-06-06 | 2017-09-15 | 西安石油大学 | A kind of power transmission oscillating bearing of dynamic guiding type rotary steering drilling tool |
| CN109807858A (en) * | 2017-11-20 | 2019-05-28 | 上海交通大学 | The flat elastic link parallel institution in two turn one of space of large deformation driving |
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Application publication date: 20160803 |
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