CN102465963B - Heavy-load bearing - Google Patents

Abstract

A heavy-load bearing comprises an assembly and a shell, wherein the assembly consists of at least two elements, and a shaft hole which penetrates through the assembly in the axial direction, is formed in the assembly to allow a shaft core to penetrate. The maximum radial direction peripheral wall surface in axial of each element is provided with an assemble part, two ends of each element are provided with two connecting parts, and each element is provided with a core hole which penetrates in the axial direction. At least one element of the assembly is concavely provided with at least one cavity slot in the axial direction in at least one of the two connecting parts, so the cavity slot is arranged between an outer wall adjacent to the assemble part and an inner wall adjacent to the core hole in a surrounding way. At least one element of the assembly is annularly provided with a group of multiple grooves at the free end of the inner wall, and the group of multiple grooves communicates the at least one cavity slot with the core hole. The shell is provided with a cavity which is extended in the axial direction for accommodating the assembly, at least one storage chamber for storing lubricating media is formed in a surrounding way by the at least one cavity slot between two adjacent elements, and the at least one group of multiple grooves forms at least one group of multiple runners, between at least one group of adjacent elements in the assembly, and the at least one group of multiple runners communicates the shaft hole with the at least one storage chamber.

Description

High capacity bearing

Technical field

The invention provides a kind of high capacity bearing, espespecially can surround at least one apotheca storing lubricant medium of formation by the chamber groove between adjacent two unit pieces, and continue to form the multiple flow passages dynamic pressure of powerful back shaft core rotation and the high capacity bearing of circulation and stress lubricant medium.

Background technique

Existing bearing is under the harsh operating conditions such as high temperature, low temperature, high capacity, high rotating speed, high vibration, usually the axle core rotation through the short time namely may because of the approach exhaustion gradually of lubricant medium (lubricating media), cause axle core directly and axis hole wall there is high-frequency knocking and collision, thus excessive abrasion and heating is caused, cause this bearing to occur noise at last, scrape the different shape such as axle, reaming and accelerate damage, be existing bearing institute be badly in need of solution technical problem.

Want to be formed between the shaft hole inner wall of bearing and the axle outer core of rotation be for a long time enough to the high capacity of reach core tribology interface (tribology interface) to continue smooth operation under above-mentioned harsh operating conditions, enough lubricant mediums are rich in and evenly and supply swimmingly and reclaim this lubricant medium except bearing must be made, also must possess the production of Simplified flowsheet, integrally-built stiffness, lubricant medium runner and the position of apotheca and the adjustability of capacity, and use the elasticity of diversification lubricant medium at the same time or separately; Above-mentioned lubricant medium general reference is any can make the material playing high-quality lubrication effect between running shaft core and the axis hole of bearing, such as, including, but not limited to: the lubricant oil (oil) that vicidity is lower and higher oiling agent (lubricants), lubricating grease (grease) and the oiling agent etc. containing solid lubrication particle of vicidity.

US2006/0171618A1 proposes a kind of self-lubricating bearing formed by the hollow assembly parts being sheathed on axle core, the two stepped cylindrical miner diameter ends that this assembly parts is ㄒ font by outward appearance dock, to form the assembly parts that an outer circumferential face is indent, and be located at this assembly parts to form the apotheca that stores lubricant oil with a hollow cylinder casing, and by formed this apotheca interface between gap (gap) by lubricant oil seepage flow to axis hole; But the higher oiling agent of vicidity is unable to supply by above-mentioned bearing.

GB1389857A proposes the self-lubricating bearing that a kind of hollow circuit cylinder plastic by injection molding is sheathed on axle core, this plastic vertically interval arranges the fin-like annulus of multiple radial protrusion, and the outer circumferential face of this plastic is located at a hollow cylinder casing, to make to form multiple ring-type apotheca storing lubricant medium between adjacent two annulus, and by multiple through holes of arranging between each apotheca with by lubricant medium seepage flow to axis hole; But, must change with other technique with the above-mentioned bearing that metal or ceramic material make structure stronger, reduce production due to the complexity of structure.

US3917362A proposes a kind of self-lubricating bearing formed by the hollow assembly parts being sheathed on axle core, the outer circumferential face central authorities of this assembly parts radially ring establish a groove, and the outer circumferential face being located at this assembly parts with a hollow cylinder casing is with make this groove be formed ring-type apotheca that one stores lubricating grease, and the multiple through holes arranged by this groove with by lubricating grease seepage flow to axis hole.

Above-mentioned each existing bearing all designs without the reclaim mechanism of special dynamic pressure and lubricant medium, lacks adjustability to the runner of lubricant medium and the position of apotheca and capacity, lacks flexibility to use diversification lubricant medium, and the structure of complexity and reduce production; Therefore, under being applied to the harsh operating conditions such as high temperature, low temperature, high rotating speed, all have its narrow limitation, and under the operating condition of high capacity, high vibration, integrally-built intensity becomes more important.

Summary of the invention

The present invention is the disappearance overcoming above-mentioned prior art, be propose a kind of high capacity bearing, comprise: an assembly parts, this assembly parts is made up of at least two unit pieces, each unit piece is provided with the core bore run through vertically, and an axis hole of this assembly parts is formed by those core bore, wear for an axle core, each unary axial two ends are two joints, with by each group of adjacent two unit pieces mutually against joint, maximum radial periphery wall between each unary described two joints is a department of assembly, have at least in this assembly parts a unit piece this two joint at least one of them towards being axially arranged with at least one chamber groove, this at least one chamber groove is made to be around between the exterior wall near this department of assembly and the interior wall near this core bore, and this at least one unit piece in this assembly parts is equipped with at least one group of multiple chase being communicated with this at least one chamber groove and this core bore at the free end of this interior wall, one shell, be provided with the cavity run through vertically, with the integrity of this assembly parts accommodating and this high capacity bearing structure strong, and surround by this at least one chamber groove between at least one group of adjacent two unit pieces at least one apotheca being formed and store lubricant medium, form at least one group of multiple runner being communicated with this at least one apotheca and this axis hole between this at least one group multiple chase this at least one group adjacent two unit pieces in this assembly parts.

According to further improved technical scheme of the present invention, have at least in assembly parts a unit piece towards two joints at least one of them is provided with the groove of enlarging on the wall of core bore.

According to further improved technical scheme of the present invention, unary each groove is communicated with and contains one group of corresponding on core bore wall multiple exit or entrance of a clitch of one group of multiple chase.

According to further improved technical scheme of the present invention, at least one groove between each group in assembly parts adjacent two unit pieces surrounds formation one circular groove, and described circular groove is communicated with and contains one group of corresponding on axis hole wall multiple road junction of one group of multiple runner.

According to further improved technical scheme of the present invention, radial assembly between adjacent two unit pieces in assembly parts is installed according to random fashion, make to be communicated with groove respectively and mutually in the multiple chase of staggered two adjacent groups between forms the one group of multiple runner interlocked be communicated with circular groove.

According to further improved technical scheme of the present invention, radial assembly between adjacent two unit pieces in assembly parts is installed according to orientation type, makes to be communicated with groove respectively and forms the one group of multiple runner docked be communicated with circular groove between the mutual multiple chase of two adjacent groups in alignment.

According to further improved technical scheme of the present invention, the cavity of unary department of assembly and shell matches, make the assembly parts formed by least two unit pieces fit in the internal face of described cavity with described department of assembly, and described assembly parts is firmly maintained in the cavity of described shell.

According to further improved technical scheme of the present invention, be provided with at least one fin extended vertically in the cavity inner wall face of shell, and be provided with the respective slot mutually engaged with described at least one fin of described shell in unary department of assembly.

According to further improved technical scheme of the present invention, be provided with at least one fin extended vertically in unary department of assembly, and be provided with the respective slot mutually engaged with described at least one fin of described department of assembly in the cavity inner wall face of shell.

According to further improved technical scheme of the present invention, between the exterior wall of unary chamber groove and interior wall, multiple stiffening rib is set.

According to further improved technical scheme of the present invention, unary multiple stiffening rib is fixed in the wall of the exterior wall of chamber groove, interior wall and end wall respectively, and with the free end of exterior wall and interior wall with high, makes described chamber groove be separated into multiple independently comparatively loculus groove.

According to further improved technical scheme of the present invention, unary multiple stiffening rib is fixed in the exterior wall of chamber groove and the wall of interior wall respectively, and lower than the height of exterior wall and interior wall, makes described chamber groove be separated into the comparatively loculus groove of multiple intercommunication.

According to further improved technical scheme of the present invention, unary chamber groove is provided with the multiple through holes running through end wall.

According to further improved technical scheme of the present invention, extend described unary a junction form arbitrary outer radial periphery wall waist less than described department of assembly by unary department of assembly is recessed towards axial side.

According to further improved technical scheme of the present invention, a unit piece is had at least to engage with the internal face of shell with department of assembly in assembly parts and integrally formed.

According to further improved technical scheme of the present invention, in high capacity bearing, the set-up mode of at least one group of multiple runner meets relation :-2≤logD≤0.5 × log (2 × Sd × H/N); Wherein N is the sum of runner in described high capacity bearing, and the equivalent hydraulic diameter of single runner that D is is unit with millimeter (millimeter), Sd is the axle core diameter in units of millimeter, and H is the axis hole length in units of millimeter.

The invention provides a kind of novel high capacity bearing structure formed by least two unit piece assembly, reach effect of modulation payload length, apotheca number and capacity and uniform lubricant medium.

The invention provides a kind of high capacity bearing that can store a large amount of and polynary lubricant medium, significantly extend and optimize operational limitation and the life-span of bearing.

The invention provides a kind of high capacity bearing that there is strong overall structure and optimize thermal conductivity, reach the effect strengthening load capacity and vibration resistance.

The invention provides a kind of high capacity bearing products platform that there is modular design and simplify batch production technique, reach and be easy to control and the effect promoting quality and reduce costs.

The invention provides a kind of novel lubrication mechanism of powerful supporting rotating shaft core, reach and continue to produce dynamic pressure and effect of energy circulation and stress lubricant medium.

The invention provides one and there is flexible design and the flexible high capacity bearing development platform of application, to adapt to the diversification industry application demand under various different tribology condition.

Accompanying drawing explanation

Fig. 1 is the solid assembling External view of first embodiment of the invention;

Fig. 2 is the three-dimensional exploded view of first embodiment of the invention;

Fig. 3 is the assembling section of first embodiment of the invention;

Fig. 4 is the another kind of three-dimensional exploded view of first embodiment of the invention;

Fig. 5 is the another kind of unary stereo appearance figure of the present invention;

Fig. 6 is the sectional drawing of a kind of unit piece () of the present invention;

Fig. 7 is the sectional drawing of a kind of unit piece (two) of the present invention;

Fig. 8 is the sectional drawing of a kind of unit piece (three) of the present invention;

Fig. 9 is the sectional drawing of a kind of unit piece (four) of the present invention;

Figure 10 is the sectional drawing of a kind of unit piece (five) of the present invention;

Figure 11 is the sectional drawing of a kind of unit piece (six) of the present invention;

Figure 12 is the assembling section of second embodiment of the invention;

Figure 13 is the assembling section of third embodiment of the invention;

Figure 14 is the assembling section of fourth embodiment of the invention; And

Figure 15 is the assembling section of fifth embodiment of the invention.

Embodiment

Below please refer to Fig. 1 to Figure 15, high capacity bearing of the present invention is further described.

As shown in Figures 1 to 4, be respectively first embodiment of the invention solid assembling External view, three-dimensional exploded view, assembling section and the first embodiment another kind of three-dimensional exploded view; This high capacity bearing is made up of shell 10 and assembly parts 12, wherein:

This shell 10 is the hollow cylinders run through vertically, and with the integrity of the cavity 11 and strong bearing structure that form sheathed assembly parts 12, it is made up of fine and close material or concrete dynamic modulus material.

This assembly parts 12 is made up of fine and close material or concrete dynamic modulus material, formed by two unit piece 16 assembly vertically, each unit piece 16 is provided with a core bore 25 axially run through, the axis hole 18 of assembly parts 12 is formed by the core bore 25 of this two unit piece 16, wear for axle core, this unit piece 16 maximum radial periphery wall is vertically a department of assembly 20 and both ends of the surface are respectively a junction 22, 23, the shape of this department of assembly 20 and size and cavity 11 match, to make department of assembly 20 closely connected in the internal face of described cavity 11 by close-fitting, and make assembly parts 12 firmly be maintained in the cavity 11 of shell 10, as shown in Figure 2 and Figure 3, unit piece 16 forms a chamber groove 27 towards the end face of joint 22 is recessed vertically to end wall 31, this chamber groove 27 is made to be located between the exterior wall 29 near department of assembly 20 and the interior wall 30 near core bore 25, in actual applications, described chamber groove 27 can present different size and shapes, and the typical cavity groove 27 only with a rectangular in cross-section in various embodiments of the present invention discloses with simplified illustration, multiple chases 35 that one group is communicated with described chamber groove 27 and core bore 25 are also equipped with at the free end of this interior wall 30, and the groove 36 be provided with on the wall of core bore 25 one end towards joint 22 enlarging, this groove 36 is communicated with and contains the one group multiple corresponding exit or entrance of a clitch 41 of the multiple chase of this group 35 at core bore 25 wall, two unit pieces 16 arranged vertically in this assembly parts 12 are mutual to formation with two adjacent joints 22 respectively, and be tight with in the cavity 11 of shell 10 with department of assembly 20 respectively, make to form one group of multiple runner 32 that lubricant medium seepage flow can be lubricated to axis hole 18 for axle core by one group of multiple chase 35 of adjacent two unit pieces 16 at joint 22 respectively, the equivalent hydraulic diameter (equivalent/hydraulic diameter) of the multiple runner of this group 32 is twices of the multiple chase 35 of this group, and surrounded by described adjacent two grooves 36 and form one and be communicated with and contain the multiple runner of this group 32 multiple road junctions 42 corresponding on axis hole 18 wall, and the formation cross section vertically looked towards these road junctions 42 is the banded circular groove 38 of convergent, the rectangular apotheca 15 stored for lubricant medium of Formation cross-section is surrounded at joint 22 respectively again by the chamber groove 27 of this adjacent cells part 16, the volume of this apotheca 15 is twices of this chamber groove 27, and make the multiple runner of this group 32 be communicated with described apotheca 15 and axis hole 18 respectively, to form the high capacity bearing of the present embodiment.Lubricant medium described in the present invention is made a general reference lubricant oil or is high lubricating grease and the oiling agent etc. containing solid lubrication particle compared with the vicidity of lubricant oil.

High capacity bearing of the present invention is as department of assembly 20 using the whole periphery wall of unit piece 16 each in this assembly parts 12, when each unit piece 16 of assembling is in the cavity 11 of shell 10, can guarantee that the axis hole 18 be made up of core bore 25 has alignment accurately, reach and be easy to control the effect with lifting capacity yield and quality; And due to this assembly parts 12 be fit tightly with the internal face of maximum area of contact and cavity 11, thus directly can optimize overall construction intensity and the thermal conductivity of this bearing, reach the effect strengthening load capacity and vibration resistance.

When axle core rotates in the axis hole 18 of described high capacity bearing, lubricant medium in apotheca 15 can expand because of importing into of tribology heat-dissipating, and make the vicidity of lubricant medium reduce and increase mobility, impel described lubricant medium via these runner 32 seepage flow to axis hole 18, and cause these runners 32 lower towards the pressure of axis hole 18 end due to the centrifugal force produced when axle core rotates, and it is higher towards the pressure of apotheca 15 end, the pressure difference formed by runner 32 two ends can push the lubricant medium in apotheca 15 to axis hole 18 further, the lubrication interface formed between axis hole 18 of the present invention and axle core is made far to be thicker than the existing self-lubricating bearing only using the lower vicidity of impregnation in advance lubricant oil, again because unit piece 16 also can be made up of the concrete dynamic modulus material of soaking by lubricating oil in advance, make the lubrication mechanism between axis hole 18 and axle core except supplying except lubricant medium by these runners 32 by described apotheca 15, also can drive supplying lubricating oil by the concrete dynamic modulus material of described oil-containing by capillary force simultaneously, thus form the lubrication interface of more high-quality, to strengthen tribology effect.

Again when axle core rotates in the axis hole 18 of described high capacity bearing, axle core can also converge the lubricant medium to be ready supplying close to a runner 32 of axle core along rolling extrusion in the described circular groove 38 of cross section convergent, to form the dynamic pressure of back shaft core, and with pushing in apotheca 15 by this lubricant medium via another runner 32 adjacent before it; Now, the next runner 32 rotated along this circular groove 38 with axle core starts to supply lubricant medium, and rolling extrusion also converges the lubricant medium to be ready supplying close to this runner 32 of axle core immediately, and again form the dynamic pressure of back shaft core, and then this lubricant medium is pushed in apotheca 15 via another runner 32 adjacent before it; So rotate rolling extrusion converge the lubricant medium that to be ready supplying close to a runner 32 of axle core and form the dynamic pressure of continuous back shaft core in circular groove 38 again and again with axle core, and then by the circular groove 38 of cross section convergent, this lubricant medium is recycled in apotheca 15 via adjacent next runner 32, thus continue to form a kind of powerful multiple flow passages dynamic pressure of back shaft core rotation and the lubrication mechanism (multi-channel dynamic-pressure support and recycle lubricatingmechanism) of circulation and stress lubricant medium; Automatically supplement and circulation and stress lubricant medium because high capacity bearing of the present invention has, and continue the novel lubrication mechanism forming the dynamic pressure of powerful back shaft core, thus load and vibration resistance can be strengthened further, reach the effect significantly increased the service life.

The axial cross section of apotheca 15 of the present invention can present other different volumes and shape, such as rhombus, circular arc, polygonal etc. according to the chamber groove 27 of adjacent two unit pieces 16; Obviously, namely therefore in the present embodiment, the shape of cited apotheca 15 is non-limits to the scope of the claims of the present invention.

The present invention is by adjusting the shape of multiple chase 35, number and size, make lubricant medium in described apotheca 15 via the steady flow of multiple runner 32 between the axis hole 18 and axle core of assembly parts 12, to adapt to different tribology conditions, thus significantly extend and optimize operational limitation and the life-span of bearing.

Fig. 4 is the another kind of three-dimensional exploded view of first embodiment of the invention, the main distinction of itself and Fig. 1 to Fig. 3 is: be joined to integrally formed 16 ' with the department of assembly 20 of a unit piece 16 with the internal face of shell 10 one end in advance, engage with the joint 22 of another unit piece 16 with this joint of integrally formed 16 ' 22 again, to reach the batch production technique and more strong overall structure of more simplifying; In addition, the internal face of shell 10 also arranges three the symmetrical fins 13 extended vertically, and along the department of assembly 20 of this another unit piece 16 being arranged the respective slot 14 mutually engaged with this fin 13 on this shell 10, to optimize batch production technique and the structural strength of this high capacity bearing further.

As shown in Fig. 5 to Figure 10, be respectively the present invention to enumerate a series of representative unit piece 16 meeting major character described in the first embodiment more further ", the stereo appearance figure of 16a, 16b, 16c, 16d, 16e and sectional drawing; the main distinction is therebetween: compared to the unit piece 16 shown in Fig. 3, and unit piece 16a is as shown in Figure 6 provided with the groove 36 towards two joint 22,23 enlargings respectively on the wall at core bore 25 two ends; Compared to unit piece 16, unit piece 16b is as shown in Figure 7 provided with the multiple through holes 33 running through end wall 31 to joint 23 in chamber groove 27; Compared to unit piece 16, unit piece 16c is as shown in Figure 8 provided with the groove 36 towards two joint 22,23 enlargings respectively on the wall at core bore 25 two ends, and in chamber groove 27, be provided with the multiple through holes 33 running through end wall 31 to joint 23; Compared to unit piece 16, unit piece 16d is as shown in Figure 9 arranged with the chamber groove 28 being deep to end wall 31 surface respectively vertically towards two joints 22, described two chamber grooves 28 are located in the exterior wall 29 of two ends respectively near department of assembly 20 and between the interior wall 30 of core bore 25, and be equipped with at the free end of this two interior wall 30 multiple chases 35 that a group is communicated with described chamber groove 28 and core bore 25 respectively, and on the wall at core bore 25 two ends, be provided with the groove 36 towards two joint 22 enlargings respectively; Compared to unit piece 16d, the end wall 31 that unit piece 16e as shown in Figure 10 shares at two chamber grooves 28 is provided with the multiple through holes 34 interconnected; Again as shown in figure 11, unit piece 16f, except being provided with on the wall at core bore 25 two ends respectively towards except the groove 36 of two joint 23 enlargings, does not all arrange chamber groove 27,28 and chase 35.

In addition, compared to the described chamber groove 27,28 of unit piece 16 shown in Fig. 2, unit piece 16 as shown in Figure 5 " described chamber groove 27,28 in multiple stiffening rib 26 also can be set, further to strengthen the overall structure of high capacity bearing of the present invention; The radial setting position of this stiffening rib 26 is between adjacent two chases 35, and be fixed in the wall of the exterior wall 29 of chamber groove 27,28, interior wall 30 and end wall 31 respectively, and and the free end of exterior wall 29 and interior wall 30 with high, described chamber groove 27,28 to be separated into multiple independently comparatively loculus groove; In actual applications, this stiffening rib 26 also can be fixed in the exterior wall 29 of chamber groove 27,28 and the wall of interior wall 30 respectively, and is low compared with exterior wall 29 and the height of interior wall 30, to take into account the strengthening of structure and the comparatively loculus groove forming multiple intercommunication; For simplified illustration, in following each embodiment, still with not containing in Fig. 3 of this stiffening rib 26 and above-mentioned Fig. 6 to Figure 11 each unit piece 16 of announcement, 16a, 16b, 16c, 16d, 16e, 16f feature, effect that high capacity bearing of the present invention is reached by unary different arrangement mode multiple in assembly parts 12 is described further.

High capacity bearing of the present invention by each unit piece with the department of assembly 20 fitted tightly between whole periphery wall and cavity 11 internal face of shell 10, the joint 22 engaged with adjacent two unit pieces is amassed again with exterior wall 29 and the large contact surface of interior wall 30 free end, and the multiple stiffening ribs 26 arranged between the exterior wall 29 of chamber groove 27,28 and interior wall 30, guarantee integrally-built stiffness and the thermal conductivity optimizing tribology interface, thus significantly strengthen load and vibration resistance.

Figure 12 is the assembling section of second embodiment of the invention, this assembly parts 12 is arranged in two groups of adjacent two unit pieces (16a, 16f) by two kinds of unit pieces 16a, 16f, (16f, 16a) pattern, and be tight with in the cavity 11 of shell 10 with department of assembly 20 respectively, to form the high capacity bearing of the present embodiment; This high capacity bearing forms two groups of multiple runner 32a by one group of multiple chase 35 of unit piece 16a with a junction 23 of adjacent cells part 16f respectively, and the equivalent hydraulic diameter of this group multiple runner 32a is the half of described one group of multiple runner 32; Two rectangular apotheca 15a of Formation cross-section are surrounded with a junction 23 of adjacent cells part 16f respectively again by a chamber groove 27 of unit piece 16a, respectively at these two groups multiple runner 32a place supply lubricant mediums, the volume of this apotheca 15a is the half of described apotheca 15, and makes these two groups multiple runner 32a be communicated with described two apotheca 15a and axis hole 18 respectively; When axle core rotates in axis hole 18, form two groups of circular grooves 38 respectively by described two groups of adjacent grooves 36, reach the dynamic pressure and circulation and stress lubricant medium that continue to produce powerful back shaft core, and be uniformly distributed effect of tribology interface.

Figure 13 is the assembling section of third embodiment of the invention, this assembly parts 12 is arranged in two groups of two adjacent unit pieces (16,16b) by two kinds of unit pieces 16,16b, (16b, 16) pattern, and be tight with in the cavity 11 of shell 10 with department of assembly 20 respectively, to form the high capacity bearing of the present embodiment, this high capacity bearing forms the larger multiple runners 32 of one group of equivalent hydraulic diameter by two groups of multiple chases 35 of adjacent two unit pieces (16b, 16) respectively, and forms another by one group of multiple chase 35 of another unit piece 16 with the joint 23 of unit piece 16b and organize the less multiple runner 32a of equivalent hydraulic diameter, again respectively by adjacent two unit piece (16b, 16) two chamber grooves 27 surround the larger apotheca 15 of formation one volume, and to be surrounded with the joint 23 of unit piece 16b by a chamber groove 27 of unit piece 16 and form the less apotheca 15a of another volume, make these two groups multiple runners 32, 32a is communicated with described two apothecas 15 respectively, 15a and axis hole 18, and make this two apotheca 15 by multiple through holes 33 of unit piece 16b in this chamber groove 27, lubricant medium in 15a is in pressure balance at any time, reach at these two groups multiple runners 32, effect of the uniform lubricant medium in 32a place, when axle core rotates in axis hole 18, two groups of grooves 36 respectively by described adjacent two unit pieces (16b, 16) form the circular groove 38 of a group wider, and surrounded by one group of groove 36 of unit piece 16 and the joint 23 of unit piece 16b and forms another and organize narrower circular groove 38a, reach the lasting generation dynamic pressure of powerful back shaft core and effect of circulation and stress lubricant medium.

Figure 14 is the assembling section of fourth embodiment of the invention, this assembly parts 12 is arranged in two groups of adjacent two unit pieces (16a, 16e) by two kinds of unit pieces 16a, 16e, (16e, 16a) pattern, and be tight with in the cavity 11 of shell 10 with department of assembly 20 respectively, to form the high capacity bearing of the present embodiment; This high capacity bearing forms two groups of multiple runners 32 by two groups of adjacent multiple chases 35 respectively, surrounded by the chamber groove 28 that a chamber groove 27 is adjacent with another respectively again and form two apotheca 15b, these two groups multiple runners 32 are made to be communicated with described two apotheca 15b and axis hole 18 respectively, and by running through multiple through holes 34 of this two chambeies groove 28 in unit piece 16e, make the pressure in this two apotheca 15b be in state of equilibrium at any time, reach the effect at these the two groups uniform lubricant mediums in multiple runner 32 place; When axle core rotates in axis hole 18, form two groups of circular grooves 38 respectively by described two groups of adjacent grooves 36, reach and continue to produce the dynamic pressure of powerful back shaft core and effect of circulation and stress lubricant medium.

The present embodiment is each unit piece 16a in assembly parts described in assembly 12, during 16e, do not need each adjacent two unit piece 16a, between 16e, two groups of identical numbers and spaced multiple chase 35 carry out complexity and butt junction location technique accurately, so that form the one group of multiple interlaced flow passage 32a doubling each group of multiple chase 35 number between the multiple chase 35 of these two adjacent groups according to random alignment, and formed another that be same as described each group of chase 35 number by the multiple interlaced flow passage of this group 32 organize multiple runner 32 that docks with via aiming at positioning process, with this group multiple docking runner 32, there is identical equivalent hydraulic diameter based on this group multiple interlaced flow passage 32a, thus can by adjacent two unit piece 16a each in assembly parts 12, 16e is according to random fashion assembly, make described each adjacent two unit piece 16a, one group of staggered multiple runner 32 is formed with staggered two groups of multiple chases 35 between 16e, and significantly simplify batch production technique, and the effect reaching uniform lubricant medium and reduce costs.

Figure 15 is the assembling section of fifth embodiment of the invention, this assembly parts 12 is arranged in two groups of adjacent two unit pieces (16a, 17) by two kinds of unit piece 16a, 17, (17,16a) pattern, and be tight with in the cavity 11 of shell 10 with department of assembly 20,20a respectively, to form the high capacity bearing of the present embodiment; Wherein this unit piece 17 is provided with a core bore 25 identical with unit piece 16a, and to be provided with one in its one end compared with the department of assembly 20 of unit piece 16a be short but the department of assembly 20a that external diameter is identical, the other end extending to unit piece 17 towards core bore 25 direction by this department of assembly 20a forms the waist 21 of a taper, be respectively at the two ends of this waist 21 again close to a junction 22 of the vertex of a cone and another joint 23 close to the cone end, and be equipped with the one group of chase 35 being communicated with core bore 25 and waist 21 at the free end of this joint 22; This high capacity bearing forms one group of multiple runner 32 by two groups of adjacent multiple chases 35 respectively, and forms another by one group of multiple chase 35 and an adjacent joint 23 and organize multiple runner 32a; Surrounding Formation cross-section by the chamber groove 27 of unit piece 16a and waist 21 outer wall of an adjacent cells part 17 and cavity 11 internal face of shell 10 respectively is again a polygonal apotheca 15c, and by rectangular another apotheca 15a of joint 23 Formation cross-section of a chamber groove 27 and an adjacent cells part 17, and make these two groups of runners 32,32a is communicated with described two apotheca 15c, 15a and axis hole 18 respectively; When axle core rotates in axis hole 18, form two groups of circular grooves 38 respectively by described two groups of adjacent two grooves 36, reach and continue to produce the dynamic pressure of powerful back shaft core and effect of circulation and stress lubricant medium.

In each embodiment of high capacity bearing of the present invention, radial assembly between at least one group in assembly parts adjacent two unit pieces is installed according to random fashion, make to be communicated with groove respectively and mutually in the multiple chase of staggered two adjacent groups between forms the one group of multiple runner interlocked be communicated with circular groove.More than disclose, be intended to simplified illustration and clear announcement correlated characteristic; Only in actual applications, because this high capacity bearing is reach thousands of even speed each runner instantaneously on axis hole of more than tens thousand of turns with per minute relative to axle core, radial assembly between this at least one group adjacent two unit pieces obviously in this assembly parts also can be installed according to orientation type, makes to be communicated with this groove respectively and forms the one group of multiple runner docked be communicated with this circular groove between the mutual multiple chase of two adjacent groups in alignment; The multiple runner interlocked due to this group has identical equivalent hydraulic diameter with multiple runners that this group is docked, and therefore can reach the identical function of described each embodiment and benefit without the need to being confined to precise positioning complicated in Product Process.

For reaching the batch production technique and structural strength of more simplifying, have at least a unit piece to engage with the internal face of shell with department of assembly in the assembly parts of high capacity bearing of the present invention and integrally formed, then engage in the mode that the various embodiments described above are identical with other unit piece in this assembly parts.

Unary department of assembly each in assembly parts also can be arranged at least one fin extended vertically by high capacity bearing of the present invention respectively, and the respective slot mutually engaged with this at least one fin of this department of assembly is set in the cavity inner wall face of shell, reach effect of precise positioning and strengthening structure further.

From the above mentioned, high capacity bearing of the present invention provides a kind of and has the payload length that can adapt to disalignment core concurrently, and number and the capacity of apotheca can be expanded, and adjustable uses kind and the injection phase of lubricant medium, batch production technique can be simplified and significantly reduce cost of production, and possess integrally-built stiffness and the thermal conductivity optimizing tribology interface, the high capacity bearing producing powerful dynamic pressure and circulation and stress lubricant medium can be continued again, to meet the application demand of diversification industry.

In above-described embodiment, in high capacity bearing, the set-up mode of at least one group of multiple runner meets relation :-2≤logD≤0.5 × log (2 × Sd × H/N); Wherein N is the sum of runner in this high capacity bearing, and the equivalent hydraulic diameter of single runner that D is is unit with millimeter (millimeter), Sd is the axle core diameter in units of millimeter, and H is the axis hole length in units of millimeter.

The effect being clearly demonstrated technical characteristics of the present invention further by above-mentioned mode of execution and reached, comprising:

(1) a kind of novel high capacity bearing structure formed by least two unit piece assembly is provided, on at least one end face, at least one chamber groove is arranged with by having a unit piece in the assembly at least, and be equipped with one group of multiple chase be communicated with core bore at the free end of the interior wall of this chamber groove, and form at least one group of multiple runner of conveying lubricant medium by the multiple chase of this group and chamber groove respectively between at least one group of adjacent two unit pieces in this assembly parts and store at least one apotheca of lubricant medium, reach modulation payload length, effect of apotheca number and capacity and uniform lubricant medium.

(2) a kind of high capacity bearing that can store a large amount of and polynary lubricant medium is provided, diversified apotheca and multiple runner is formed by respectively organizing different arrangement mode between adjacent two unit pieces in assembly parts, reach and continue to set up uniform and stable lubrication interface between axle core and axis hole, to play tribology effect of high-quality, thus significantly extend and optimize operational limitation and the life-span of bearing.

(3) provide a kind of and there is strong overall structure and the high capacity bearing optimizing thermal conductivity, by each unit piece to fit tightly between the department of assembly of whole maximum radial periphery wall and the cavity inner wall face of shell, the joint engaged with adjacent two unit pieces is amassed again with exterior wall and the large contact surface of interior wall free end, and the multiple stiffening ribs arranged between the exterior wall of chamber groove and interior wall, guarantee integrally-built stiffness and the thermal conductivity optimizing tribology interface, thus significantly strengthen load and vibration resistance.

(4) provide a kind of and there is modular design and the high capacity bearing products platform simplifying batch production technique, make can simplify number of molds during a large amount of Manufacture Order element, matched by the cavity inner wall face of the shape of department of assembly and size and shell when module units part is in shell, guarantee that the axis hole formed by each core bore has alignment and integrally-built stiffness accurately and to go forward side by side the thermal conductivity of one-step optimization tribology interface, and do not need to carry out complexity to the multiple runners formed between each group of adjacent two unit pieces and positioning process accurately, thus can batch production technique be simplified, reach and be easy to control and lifting capacity yield and quality and effect of significantly reducing costs.

(5) a kind of novel lubrication mechanism of powerful supporting rotating shaft core is provided, the dynamic pressure that the lubricant medium to be ready supplying near a runner of axle core forms back shaft core is also converged by axle core rolling extrusion in circular groove, again this lubricant medium is recycled to apotheca via next runner, reaches and continue to produce dynamic pressure and effect of energy circulation and stress lubricant medium.

(6) one is provided to have flexible design and the flexible high capacity bearing development platform of application, through the shape of regulation unit part, number, size and arrangement mode, the shape of runner, generation type, position, number and size, the form of groove and number, the number of apotheca, capacity, the parameter such as lubricant medium kind and injection phase, thus develop different high capacity bearings according to this, to adapt to the diversification industry application demand under various different tribology condition.

In sum, the present invention indeed meets the important document of patent of invention, then proposes patent application in accordance with the law.But, the foregoing is only explanation embodiment of the present invention, from not limiting claim of the present invention with this.Any those skilled in the art helps the equivalence done according to spirit of the present invention and modifies or change, all should be covered by the claim of claims.

Claims (14)

1. a high capacity bearing, comprising:

One shell, described shell is the hollow cylinder run through vertically, to form a cavity; And

One assembly parts, described assembly parts is made up of at least two unit pieces, be two joints at each unary axial two ends, with by each group of adjacent two unit pieces mutually against joint, to form described assembly parts, maximum radial periphery wall between each unary described two joints is a department of assembly, so that described assembly parts is fitted tightly in the cavity of described shell, to form described high capacity bearing, described each unit piece is provided with the core bore axially run through, and an axis hole of described assembly parts is formed by described at least two these core bore unary, wear for an axle core, it is characterized in that: have at least in described assembly parts a unit piece towards described two joints at least one of them is equipped with at least one groove of enlarging on the wall of described core bore, have at least in described assembly parts a unit piece described two joints at least one of them is arranged with at least one chamber groove to end wall vertically, be located between the exterior wall near department of assembly and the interior wall near core bore to make described at least one chamber groove, and the described at least one unit piece in described assembly parts is equipped with at least one group of multiple chase being communicated with described at least one chamber groove and described core bore and described at least one groove at the free end of described interior wall, and surround by the described at least one chamber groove in adjacent two unit pieces of at least one group in described assembly parts at least one apotheca being formed and store lubricant medium, and by forming at least one group of multiple runner being communicated with described at least one apotheca and described axis hole between described at least one group of adjacent two unit pieces of described at least one group of multiple chase in described assembly parts.

2. high capacity bearing according to claim 1, is characterized in that: described at least one groove is communicated with and contains at least one group of corresponding on described core bore wall multiple exit or entrance of a clitch of described at least one group of multiple chase.

3. high capacity bearing according to claim 1, it is characterized in that: the described at least one groove between each described at least one group of adjacent two unit pieces surrounds formation one circular groove, described circular groove is communicated with and contains one group of corresponding on described axis hole wall multiple road junction of each described at least one group of multiple runner.

4. high capacity bearing according to claim 3, it is characterized in that: the radial assembly between described at least one group of adjacent two unit pieces in described assembly parts is installed according to random fashion, making is the one group of multiple runner interlocked being formed between the multiple chase of staggered two adjacent groups and be communicated with described circular groove mutually.

5. high capacity bearing according to claim 3, it is characterized in that: the radial assembly between described at least one group of adjacent two unit pieces in described assembly parts is installed according to orientation type, make between the multiple chase of two adjacent groups mutually in alignment, to form the one group of multiple runner docked be communicated with described circular groove.

6. high capacity bearing according to claim 1, it is characterized in that: the described cavity inner wall face of described shell is provided with at least one fin extended vertically, and be provided with the respective slot mutually engaged with described at least one fin of described shell along described unary described department of assembly.

7. high capacity bearing according to claim 1, it is characterized in that: described unary described department of assembly is provided with at least one fin extended vertically, and be provided with along the described cavity inner wall face of described shell the respective slot mutually engaged with described at least one fin of described department of assembly.

8. high capacity bearing according to claim 1, is characterized in that: arrange multiple stiffening rib between the exterior wall of described at least one chamber groove and interior wall.

9. high capacity bearing according to claim 8, it is characterized in that: described multiple stiffening rib is fixed in the wall of the exterior wall of described at least one chamber groove, interior wall and end wall respectively, and with the free end of exterior wall and interior wall with high, make described at least one chamber groove be separated into multiple independently comparatively loculus groove.

10. high capacity bearing according to claim 8, it is characterized in that: described multiple stiffening rib is fixed in the exterior wall of described at least one chamber groove and the wall of interior wall respectively, and lower than the height of exterior wall and interior wall, make described at least one chamber groove be separated into the comparatively loculus groove of multiple intercommunication.

11. high capacity bearings according to claim 1, is characterized in that: described at least one chamber groove is provided with the multiple through holes running through end wall.

12. high capacity bearings according to claim 1, is characterized in that: by described unary described department of assembly towards axial side the recessed waist extending described unary a junction arbitrary outer radial periphery wall formed vertically and be less than described department of assembly.

13. high capacity bearings according to claim 1, is characterized in that: have at least a unit piece to engage with the internal face of described shell with described department of assembly in described assembly parts and integrally formed.

14. high capacity bearings according to claim 1, is characterized in that: the set-up mode of described at least one group of multiple runner meets relation :-2≤logD≤0.5 × log (2 × Sd × H/N); Wherein N is the sum of runner in described high capacity bearing, and the equivalent hydraulic diameter of single runner that D is is unit with millimeter (mm), Sd is the axle core diameter in units of millimeter, and H is the axis hole length in units of millimeter.