CN101947982B - Track component and assembly method for constituting track - Google Patents
Track component and assembly method for constituting track Download PDFInfo
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- CN101947982B CN101947982B CN201010245407.2A CN201010245407A CN101947982B CN 101947982 B CN101947982 B CN 101947982B CN 201010245407 A CN201010245407 A CN 201010245407A CN 101947982 B CN101947982 B CN 101947982B
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Abstract
The invention relates to a track component which contains track links and track connection links, and an assembly method thereof. The track connection links are divided into two kinds, namely the split type track connection links and the integral track connection links; the track component also contains the pins and pin bushes which are connected with the track links and the track connection links, track board fasteners and track boards. By changing the structure of the track component, the assembly becomes accurate and efficient; the curved working surface of each fastening nut of the track links has good localization performance and can be reused; and fastening bolt sealing parts are arranged in the links so that the track component has higher scientificalness and practicability. The split type track connection links adopts the two-layer teeth structure so as to change the forced directions of the links and ensure that the connection of the links becomes more stable; and integral track connection link servo thread holes are arranged to ensure that the pin holes can be enlarged and the pins can placed in or out of the pin holes conveniently. The two connection methods of the track can replace the long used connection method that people uses sledge hammers to beat the pins and uses cotter pins to lock pin bearings, thus the connection of the track becomes simple, fast, safe and reliable.
Description
Technical field
The invention belongs to the conveyance technical field, generally more be applied to construction machinery and equipment, relate to a kind of track assembly, reach the assemble method that forms crawler belt.
Background technology
At present, domestic tracked construction equipment messenger chain all adopts dry type or dry-type encapsulated, because the lubricated short-time characteristic of this crawler belt causes the tolerance clearance increase of bearing pin and guide to make seal failure, its as a result resistance to motion increase, power consumption, 1/2nd of deficiency liquid lubrication in service life crawler belt.
In addition, the linkage section of track link is less than interlude with the area of contact (namely two chain link linkage sections have the slit of vertical and horizontal) of caterpillar wheel, its wearing and tearing are also greater than interlude, and then cause the working face of guide rail of track link rough and uneven in surface, the caterpillar wheel vehicle that travels on working face of guide rail can produce periodic up and down mountain peak and winnows with a dustpan, mutually impact making the wearing and tearing aggravation, particularly serious on the impact of caterpillar wheel, make its axially, diameter clearance increases lubricating oil and leaks.
The width of track link fastening nut steady job groove is followed bolt because of contaminated thing erosion fastening nut during dismounting and is rotated together the inefficacy of steady job groove greater than the diagonal line of outer cubic nut.Be forced in the case carry out the flame cutting, binding bolt has become disposable products.
Last century late nineteen seventies, U.S. US4083611, US4050750 patent are made as blind hole with the caterpillar block fastening bolt holes of crawler belt connecting link, and are provided with binding thread in blind holes; Rear CN1522921A has again similar disclosing of the same clan, this a large amount of binding threads is placed left a kind of worry of people in the track link, the blind hole port that is under the open state suffers the erosion of pollutants unavoidably, after binding bolt and the corrosion of chain link negative thread, demounting bolt easily causes the negative thread damage even twists off bolt causing chain link to scrap, and also has simultaneously the deficiency of blind hole internal thread processing technology complexity.
In addition, in the assembling process of track link, the package size of caterpillar block fastening bolt holes and the endplay of guide are to lean on the degree of depth that press-fits of bearing pin and track link to decide, show that what of track link pin shaft hole outer face are the bearing pin both ends of the surface exceed, and how much what exceed be to realize by the frock that is provided with depressed part, thus frock impaired assembly precision and the speed that affects crawler belt often.
Minute dignity incision line wide-angle of existing split type crawler belt connecting link, the cutting of longitudinal degree, make tangent plane driving surface and the angle a between chain link two bottom surfaces at connection teeth place bigger than normal between 30 °-45 °, especially driving surface first stress point of monodentate connecting link between two parties on the lower side, the component of the flank of tooth to the stretching of tie bolt, shear and increase.Utilizing two bottom surfaces (be working face of guide rail and engage driving surface with caterpillar block) is the existing common practice as the assembling benchmark, assembling will lose the assembling benchmark again behind working face of guide rail wearing and tearing or repair welding, two connecting links minute dignity is not in a plane about causing, produce internal stress after connecting, serious is just broken at short notice, and on-the-spot very difficult maintenance affects traffic safety.
Split face initial and end two stress points of split type crawler belt connecting link are not enough in the projected length of horizontal surface, being subjected to this to affect caterpillar block two fastening bolt holes width between centerss is forced to further, not identical with the caterpillar block fastening bolt holes of the disconnected chain link of same model, lost and exchanged and unification.Divide again dignity to connect the number of teeth without the assembling detection reference few, reduced assembly precision and the Joint strenght of split type track link.
Yet, in the connection procedure of entire track connecting link, connect the length of guide less than press-fiting guide, connect the external diameter of bearing pin less than press-fiting bearing pin, changed the width between centers between bearing pin after the assembling, the metal gasket without sealing function has been installed at connecting link guide two ends bar none again, and the engagement that making wearing and tearing accelerate to cause to connect guide and driven wheel interferes and shifts to an earlier date leakage loss; The connection mode that adopts is also unstable.Wherein, a kind of is free-running fit, and because become gradually greatly by impact load bearing pin and pin-and-hole gap, another kind is interference fit soon in this cooperation, it is not in place that the connection mode that this cooperation still adopts artificial sledgehammer to hit bearing pin, this kind mode easily produce the assembling of magnitude of interference increase bearing pin; Or scurry out because the magnitude of interference reduces bearing pin, meet this situation user and between axle, hole, weld, carry out again the flame cutting during decomposition, the junction of crawler belt connecting link has become potential safety hazard after a lot of bother.
Summary of the invention
The present invention has overcome the defective of above-mentioned existence, and purpose provides a kind of track assembly, reaches the assemble method that forms crawler belt.
Track assembly of the present invention, and form the assemble method content Description of crawler belt:
Track assembly of the present invention, and form the assemble method of crawler belt, it is characterized in that:
The pin shaft hole of track link and pin shaft hole outer face intersection be provided with a stepped hole or in pin shaft hole peripheral surface groove is set, its stepped hole or groove are apart from the vertical depth of the pin shaft hole outer face vertical depth greater than bearing pin two chamfers, the external diameter of stepped hole or groove is greater than pin diameter, and make track link pin shaft hole outer face and bearing pin outer face be the assembling reference plane, two benchmark flush and overlap in a plane after the assembling, when the track link working face of guide rail makes progress horizontal positioned, be provided with depressed part at track link working face of guide rail interlude and driving surface intersection, interlude side, or vertically middle to having depressed part perpendicular to track link working face of guide rail interlude, the side of track link refers to independent medial surface, independent lateral surface or medial surface and lateral surface sum, described depressed part has the part of cutting, and cuts part by this Effective width of a plurality of track link driving surfaces is consistent along the longitudinal direction;
Wherein, described depressed part is shaped as at least one continuous rectilinear form and curve shape on working face of guide rail; Or rectilinear form and the curve shape of at least one interruption.
The outer chamfer surface of the end face of the guide that is connected with track link is linear portion, and the outside face at linear portion place is sealing surface, and the small round corner transition structure is adopted at the two ends of linear portion.
Bearing pin lubricating oil through hole is angling hole with respect to bearing pin center oilhole, and two hole angles are less than 90 °.
The bearing pin center oilhole that is connected with track link is the stepped appearance through hole.
The oil hole of the bearing pin that is connected with track link is provided with the annular recess that is lower than port.
The bearing pin that is connected with the crawler belt connecting link is identical with the bearing pin outside dimension that is connected with track link.
In the stepped hole that bearing pin center oilhole exempts to collide, zerk is installed.
The cross-sectional plane of the caterpillar block fastening nut that is connected with track link is non-cylindrical, the outside face of non-cylindrical fastening nut has a section perpendicular to the tapped bore line of centers, this section is driving surface, the opposite, section is the curved surface driving surface, tapped bore can adopt through hole or blind hole, and the nut both ends of the surface are parallel with the tapped bore line of centers, equidistantly or not equidistant.
The cross-sectional plane of the caterpillar block fastening nut that is connected with track link is cylindrical, and driving surface is curved surface, and tapped bore can adopt through hole or blind hole, and the nut both ends of the surface are parallel with the tapped bore line of centers, equidistantly or not equidistant.
The driving surface of track link fastening nut steady job groove is the plane, work nest is shaped as the non-cylindrical through hole, the non-cylindrical through hole communicates with fastening bolt holes, symmetrical with the binding bolt centerline hole, the work nest width is less than the diagonal line of fastening nut, the radius of the knuckle between dual-side and the driving surface is less than the radius of non-cylindrical fastening nut, the width of driving surface bottom is greater than the width of fastening nut driving surface with matching, driving surface is parallel or non-parallel hole with the pin-and-hole at track link two ends, and the work nest top is arch.
The driving surface of track link fastening nut steady job groove is curved surface, work nest is shaped as cylindrical hole, cylindrical hole is vertical with the caterpillar block fastening bolt holes, communicate, axis of symmetry and fastening bolt holes central lines, the work nest width is less than the diagonal line of fastening nut, driving surface is parallel or non-parallel hole with track link two ends pin-and-hole on the inside face of cylindrical hole.
The caterpillar block fastening bolt holes of track link bottom surface communicates with the cross-drilled hole of end, two centerline holes intersect vertically, and be provided with sealing member at the two ends of caterpillar block fastening bolt holes negative thread, wherein: a kind of head end of form is provided with a stepped hole in the track link bottom surface with the coaxial place of line of centers that the caterpillar block fastening bolt holes intersects, and the sealing member elastic rubber ring is set in this stepped hole; Terminal caterpillar block fastening bolt holes negative thread termination to form cylindrical hole between cross-drilled hole, the ladder circle is leant on hole or conical bore, be used for placing made by rubber or polyurethane lean on cylinder or the cone sealing member that hole, ladder cylindrical hole or conical bore shape match with circle; The head end of another kind of form, in the track link bottom surface
The coaxial place of caterpillar block binding bolt centerline hole is provided with an annular groove away from the track link bottom surface, places the sealing member elastic rubber ring in this groove; End is placed sealing member in cross-drilled hole, this cross-drilled hole is again the working hole for subsequent use of the cylindrical fastening nut of caterpillar block.
The driving surface of track link fastening nut steady job groove is curved surface, the special-shaped through hole that the circumscribed two radius that is shaped as work nest does not wait or equal circle forms, the abnormity through hole is vertical with the caterpillar block fastening bolt holes and communicate, the maximum width of abnormity through hole is less than the diagonal line of fastening nut, the minimum width of abnormity through hole is less than the diameter of fastening nut, and special-shaped through hole is parallel or non-parallel hole at direction-changeable between two bottom surfaces up and down with track link two ends pin-and-hole; Wherein, tangent line is by hyperbola or hyperbola and rectilinear(-al), and the point of contact is tending towards two circles middle less than radius not at the radius of a circle place.
Has the same structure in the claim 1, between the pin shaft hole of split type crawler belt connecting link and guide hole, be provided with the line of cut of complications, this is separated into axle head crawler belt connecting link and cover end crawler belt connecting link, be provided with double-deck connection teeth on the surface of this line of cut, at least be provided with a connection teeth on the upper strata, at least be provided with two connection teeths in lower floor, by being distributed in separately axle head crawler belt connecting link and the ground floor and the Engage and disengage on minute dignity of the connection teeth on the second layer connecting surface that overlap end crawler belt connecting link, and making the caterpillar block fastening bolt holes of described split type crawler belt connecting link identical with the caterpillar block fastening bolt holes of same model track link, the initial point of line of cut is in any one side of two bottom surfaces of crawler belt connecting link.
The extended line of the upper and lower two-layer connection teeth addendum face of split type crawler belt connecting link is parallel or crossing, plane, addendum face place is being dynamically changeable with respect to the angle α of chain link two bottom surfaces between 0 °≤α≤29 °, and is the assembling reference plane take plane, second layer connection teeth place.
The stressed driving surface of the connection teeth of split type crawler belt connecting link with respect to the angle β of chain link two bottom surfaces between 60 °＜β＜100 °.
The end of split type crawler belt connecting link upper strata connection teeth is to the incision line between lower floor's connection teeth initiating terminal, with respect to the angle theta between chain link two bottom surfaces between-90 °＜θ＜90 °.
The incision line of split type crawler belt connecting link, when θ angle＜90 °, be cut the part that line separates at described split type crawler belt connecting link and be provided with a hollow groove, realize combination and separate but move along the split type axle head crawler belt of hollow groove connecting link and cover end crawler belt connecting link easy on and off.
Split type crawler belt connecting link plays hiding of connection function or exposes formula pre-connection bolt when being provided with an assembling in the middle of two fastening bolt holes, the caterpillar block corresponding with exposing formula pre-connection bolt is provided with through hole.
Have the same structure in the claim 1, the entire track connecting link comprises: the pin shaft hole of entire track connecting link and guide hole; The caterpillar block fastening bolt holes is waitd upon and is taken tapped bore, expansion slot; The inwall at least one hole of this expansion slot in described pin shaft hole and guide hole extends to predetermined length, but the part of track link is divided into the entire track connecting link that is comprised of first and second portion of relative displacement; Wait upon and take in the chain link that tapped bore is located at first, take bolt and be screwed into waiing upon of first and take in the tapped bore and promote second portion two parts are separated by waiing upon, make the enlarged-diameter at least one hole in described pin shaft hole and the guide hole to the diameter greater than bearing pin and guide, make things convenient for thus the installation of bearing pin and guide, unload wait upon take bolt after, tightening the caterpillar block binding bolt approaches first and second portion, make the reduced in pin shaft hole and at least one hole, guide hole, bearing pin is connected described pin shaft hole is connected with the guide hole and realizes that crawler belt connects at least one with guide.
The expansion slot of described entire track connecting link is located on the line at pin shaft hole and center, two hole, guide hole or is located at any side of the two hole lines of centres, and its width is greater than 0.12mm.
The expansion slot terminal point of described entire track connecting link is provided with finishing, and the terminal point of finishing is provided with and stops the hole.
Described entire track connecting link is the termination hole perpendicular to any one hole on the chain link outside face between entire track connecting link two bottom surfaces.
The expansion slot of described entire track connecting link and finishing are the combination of straight line, curve or straight line and curve.
Described entire track connecting link is provided with connection teeth at expansion slot and finishing, and makes between the driving surface of connection teeth and track link two bottom surfaces open-minded.
Described entire track connecting link increases a locking screw pit at least between pin shaft hole and guide hole.
The caterpillar block binding bolt of described entire track connecting link and lock bolt are for hiding formula structure and two kinds of structures of exposure formula structure.
The caterpillar block fastening bolt holes of described entire track connecting link, locking screw keyhole and to wait upon the end that takes tapped bore be blind hole or through hole.
Described entire track connecting link also comprises poted assemblies, and poted assemblies is used for preventing that the lubricating oil that accommodates a hole of lubricating oil from leaking by described expansion slot.
Described entire track connecting link is provided with groove at the pin shaft hole inner circumferential surface, be provided with the cylinder type through hole in the bottom of groove and the expansion slot of pin shaft hole coaxial direction, bottom portion of groove communicates with cylinder type through hole one side, the cylinder type through hole also communicates between adjacent side, the cylinder type through hole communicates with the bottom of the counterbore of entire track connecting link, and the excessive groove less than the cylinder type through-hole diameter is set between cylinder type through hole and pin shaft hole.
Have the described track link of one of claim 1-13, the described crawler belt connecting link of one of claim 14-30, and the bearing pin, the guide that are connected with track link, crawler belt connecting link, caterpillar block fastener and caterpillar block form;
Take bearing pin outer face and pin shaft hole outer face as the assembling reference plane, the dimension chain of each correlated parts is set out by the initial point of reference plane, and the working accuracy that guarantees its correlated parts is in dimension limit, by the liquid sealing device and the guide side seal face that are located in the track link counterbore, the lateral surface of guide side seal face, contact between the external port of track link counterbore, two datum coincidences are in a plane after the assembling, track link pin shaft hole outer face is flushed with the bearing pin outer face, realization has the hydraulic seal of dust reduction capability, at this moment, the endplay of guide, the package size of the caterpillar block fastening bolt holes on the every pair of track link bottom surface all reaches in scope of design simultaneously, like this, adopt two datum coincidences in a plane, can improve assembly precision and the speed of track link, and the sealing member at when screwing in screw thread in the track link fastening bolt holes by the caterpillar block binding bolt and bolt hole negative thread two ends comes in contact, make its sealing member produce the sealing that deformation realizes bolt hole negative thread two ends, when realizing sealing, also realized being fastenedly connected of caterpillar block and track link; Perhaps be connected by the track link of caterpillar block binding bolt with the caterpillar block fastening nut steady job groove with plane, curved surface face structure, caterpillar block and track link are fastened together, and then by the method for attachment one of crawler belt or the method for attachment two end to end seal lubrication type track rail assemblys that consist of ring-type of crawler belt.
At first adopt common wrench, take head end first that bolt screws in the entire track connecting link and wait upon and take in the tapped bore waiing upon, wait upon and take bolt under the effect of twist moment, crossing expansion slot contacts with second portion and makes expansion slot begin to expand, and the promotion second portion separates two parts, by expansion slot to finishing, stop the hole and begin elastic deformation, continue to strengthen and wait upon the twist moment that takes bolt, make the enlarged-diameter of pin shaft hole to the diameter greater than bearing pin, after tail end is moved to the junction of head end entire track connecting link, and the pin shaft hole of head end integral type connecting link is aimed in the guide hole that makes tail end, at this moment, bearing pin is aimed at the pin shaft hole of connecting overall formula crawler belt connecting link and just can be packed into easily with hand, cross pin shaft hole, the pin shaft hole that the guide hole enters the other end puts in place, treat the caterpillar block binding bolt that tightens in place after taking bolt unloading to wait upon, thus, the first of entire track connecting link and second portion be fixed together realize the crawler belt docking, bearing pin cooperates firmly with pin shaft hole under the bolt pretightening long term, gets final product according to the reverse order of installing when dismounting.
A kind of method of attachment of crawler belt, it is characterized in that: adopt hybrid mode to connect, split type crawler belt connecting link and entire track connecting link are combined into one group, namely a side is the entire track connecting link, opposite side is split type crawler belt connecting link, namely formed by split type axle head crawler belt connecting link and cover end crawler belt connecting link, at first, cover end with the entire track connecting link, the cover end chain link of split type crawler belt connecting link and guide press-fit be one group as head end, it is tail end that track link is connected to assembling complete, and make the equal in length of the connection guide of described tail end track link and track link assembling guide, sealing member is packed in the counterbore of head end crawler belt connecting link, again expansion is waitd upon and take bolt and screw in to wait upon and take in the tapped bore, the pin shaft hole of head end entire track connecting link is expanded to greater than pin diameter, after tail end is moved to the junction of head end integral type connecting link, and the pin shaft hole of head end integral type connecting link is aimed in the guide hole that makes tail end, at this moment, manually with the axle head chain link of split type crawler belt connecting link with bearing pin aim at tail end guide hole and penetrate, cross the pin shaft hole that the guide hole enters head end, make the axle head chain link of split type crawler belt connecting link dock and adopt the pre-connection bolted with the cover end chain link of split type crawler belt connecting link behind the bearing pin hand-hole, the pin shaft hole outer face of split type crawler belt connecting link and entire track connecting link is flushed with the bearing pin outer face, endplay was just adjusted end when two datum coincidences were in a plane after the assembling, after caterpillar block is in place, tighten oiling behind the caterpillar block binding bolt, so far, adopt the crawler belt of hybrid mode to connect complete.
The pin shaft hole of the axle head chain link of the split type crawler belt connecting link of process is to open-minded between minute dignity, and arrange to wait upon and take tapped bore the pin shaft hole of the axle head chain link of split type crawler belt connecting link is expanded to greater than pin diameter, manually bearing pin is packed in the pin shaft hole of axle head chain link of split type crawler belt connecting link, and replace press-fit approach in the claim 33 with this mode.
Advantage of the present invention is to have broken through the prior art bottleneck, makes the structural change of crawler belt have more science and practicality, and the hydraulic seal of having realized crawler belt is with lubricated, multi-field important practical value and application prospect is widely arranged.
Description of drawings
Fig. 1 is the structural representation that is provided with the single track link of sealed liquid lubricator;
Fig. 2 is the structure enlarged diagram of the liquid sealing device shown in Fig. 1;
Fig. 3 is track link working face of guide rail structural representation;
Fig. 4 is the fastening nut structural representation;
Fig. 5 is the structural representation of track link fastening nut steady job groove;
Fig. 6 is the present invention and the structural representation that has split type crawler belt connecting link now;
Fig. 7 is the structural representation that is provided with the split type crawler belt connecting link of pre-connection bolt;
Fig. 8 is the structural representation of entire track connecting link;
Fig. 9 is the entire track connecting link supplementing structure schematic diagram shown in Fig. 8;
Figure 10 is the structural representation of entire track connecting link axle end sealing device;
Figure 11 is the supplementing structure schematic diagram of Fig. 5 track link;
Figure 12 is the structural representation that the crawler belt connecting link adopts hybrid mode to connect.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
See Fig. 2, crawler belt guide 6 press-fits driving surface and track link 8 press-fits rear outer chamfering conical surface leading portion without any damage, interior dustproof unique can utilization place just on the guide 6 outer chamfering conical surfaces.Therefore, the outer chamfering of guide 6 end faces be≤45 °, and to make its outer chamfer surface be linear portion, in the transition of the two ends of linear portion employing small round corner in order to assembling.The outer chamfer surface of guide 6 end faces, end face its roughness Ra value that contacts with sealing member is 0.4, and the squareness of guide 6 end faces and centerline hole affects the sealing of lubricating crawler belt, and its value should be controlled in the 0-0.02mm.
See Fig. 1, the lubricating oil through hole 12 between bearing pin 5 center oilholes and bearing pin 5 outside faces is provided with and the angle of the bearing pin line of centers angling hole less than 90 °.Inclined-plane and bearing pin 5 cross-sectional planes are cut not in a plane in angling hole 12 line of centers places, and bearing pin 5 cross-sectional planes are crossed 12 of angling holes and cut to get the part of angling hole, whole less than vertical through hole.Angling hole 12 line of centers places are cut the inclined-plane and are not overlapped with being subjected to friction stress.Therefore, can avoid the effect to cross section, bearing pin 5 vertical through hole place, the decomposition tensile stress threatens to improve its load resistant power to the intensity at bearing pin 5 vertical through hole places, respectively processes an angling hole 12 such as two ends and can realize naturally encapsulating under the normal pressure, and the larger difficulty of processing of the less load resistant power of leaning angle is larger.Through hole is a kind of guarantee for implementing less than the lubricated crawler belt of 90 ° angling hole especially centering fine pith, but oilhole one or both ends, bearing pin 5 center are processing and the encapsulation that stepped through hole is beneficial to small axle diameter.
In addition, the contraction in length of short pin shaft center oilhole encapsulation rubber plug is conducive to increase the oil storage chamber volume, still, also can cause encapsulation rubber plug and bearing pin oil hole sidewall friction power deficiency simultaneously and package failure.Therefore, the short pin shaft oil hole is provided with an annular recess that is lower than port, short rubber plug is entered in the groove be stuck, and is reliable in order to encapsulation.
See shown in Fig. 4 b, the centre of track link linkage section, vertically, one slit 136,150 arranged all laterally, this structural reason is so that the area of thrust surface of the linkage section of existing track link working face of guide rail and interlude are unequal, cause wearing and tearing also unequal, and then causing the working face of guide rail of track link rough and uneven in surface, this is that a kind of universal phenomenon is weight.Therefore, between track link working face of guide rail interlude and side, the method for taking to increase and decrease physical dimension is adjusted.
Take track link 108 as example, wherein, also comprise track link 7,8,148,149,1480,1490,1080 and crawler belt connecting link 49,60.Side thickening (0-10mm) at track link 108, when track link working face of guide rail 134 makes progress horizontal positioned, be provided with depressed part at track link working face of guide rail 134 interludes 132 with interlude side driving surface 130,131 intersections 133, this depressed part is the again chamfering that arranges on existing chamfering basis, or vertically middle to having depressed part 114 perpendicular to chain link interlude 132 working face of guide rail, depressed part 114 is the u-shaped groove, and wide the reaching of u-shaped groove deeply respectively is 0-15mm; The side of track link refers to independent medial surface 131, independent lateral surface 130 or inside and outside side sum, and described depressed part has the part of cutting.
Concrete adjustment is as follows, from track link working face of guide rail 134 interludes 132 to two outer side-lowers to shown in Fig. 4 b, be less than the 45° angle place and cut a part, all the other add thickness and still keep, take into full account simultaneously the area of contact of caterpillar wheel shell outer ending convex medial surface and track link guide rail outside driving surface 130, and guarantee not interfere with caterpillar wheel shell outer ending convex medial surface, outside driving surface 130 reserve parts still are on the straight line.Wherein:
Can be as required, by the 130 times directions in the outside side of track link working face of guide rail 134 interludes, be less than the 45° angle place and cut a part, medial surface is motionless, shown in Fig. 4 c.
Also can be as required, by the 131 times directions in the inside side of track link working face of guide rail 134 interludes, be less than the 45° angle place and cut a part, lateral surface 130 is motionless, shown in Fig. 4 d.
Also can be as required, track link working face of guide rail 134 interludes vertically in the middle of, excise at least the u-shaped groove downwards one perpendicular to chain link working face of guide rail 134, two sides are motionless, shown in Fig. 4 e.
The depressed part of track link 108 is rectilinear forms continuously or indirectly, also can adopt continuously according to the actual conditions of working face of guide rail surface 134 and flank wear or curve shape indirectly.
By the above-mentioned part that cuts, the Effective width that makes a plurality of track link driving surfaces along the longitudinal direction (bearing of trends of a plurality of track links) is consistent.The Effective width of working face of guide rail 134 linkage sections 135 cross-sectional planes equates with the Effective width of interlude 132 cross-sectional planes or is tending towards equal, track link working face of guide rail 134 linkage sections 135 and interlude 132 isometric area of thrust surface are equated or be tending towards equal, and then make track link working face of guide rail 134 even wearings be in all the time straightened condition, increased the stability that machinery travels, after track link 108 assemblings, naturally prolong its service life.
The crawler belt bearing pin of prior art and the assembling of track link are without same benchmark.And the endplay of guide, bearing pin both ends of the surface exceed the package size of the caterpillar block fastening bolt holes on what and the every pair of track link bottom surface of track link pin shaft hole outer face, all are press-fiting the degree of depth and how much guarantee by bearing pin and track link.This how much what press-fit the degree of depth be to be determined by the depth that is located at depressed part on the frock, and the frock depressed part is impaired assembly precision and the speed that can't guarantee crawler belt often, and the assembly precision of seal lubrication type crawler belt determines the service life of crawler belt.
As shown in Figure 1, in view of above factor, the outer face intersection in track link bearing pin 5 holes and bearing pin 5 holes be provided with a stepped hole 13 or in bearing pin 5 holes peripheral surface groove (groove is not shown) is set, its stepped hole 13 or groove apart from the vertical depth of outer face greater than the vertical depth of 5 liang of chamfers of bearing pin between 1-5mm, the external diameter of stepped hole 13 or groove is greater than between bearing pin 5 diameter 0.10-5mm, and makes track link bearing pin 5 outer faces 27 be the assembling reference plane with pin shaft hole outer face 28.Stepped hole 13 or groove are vacant part after the assembling.Wherein, stepped hole 13 can generate when track link heat is touched forging and exempt to process.
Like this, the dimension chain of each correlated parts is set out by the initial point of reference plane, existing frock is press-fited the depressed part that driving surface is provided with change plane (because the plane driving surface is not fragile) into, the thickness that increases track link bearing pin 5 outer end of hole faces ends to adding the depressed part that flat existing frock is provided with.And the working accuracy that guarantees its correlated parts is in dimension limit, and two datum coincidences make track link bearing pin 5 outer end of hole faces 28 flush with bearing pin 5 outer faces 27 in a plane after the assembling.So far, 5 liang of chamfers of bearing pin lie in chain link annular recess section 13 or the groove, and make the nominal dimension external diameter of bearing pin 5 non-chamfered parts exceed the internal diameter part of bearing pin 5 hole nominal dimensions to guarantee Joint strenght.At this moment, the package size of the caterpillar block fastening bolt holes on the endplay of guide 6, the every pair of track link bottom surface all reaches in scope of design simultaneously, like this, adopts two datum coincidences can improve assembly precision and the speed of track link in a plane.
As shown in Figure 3, the cross-sectional plane of caterpillar block fastening nut 142 is non-cylindrical, the outside face of non-cylindrical fastening nut has a section perpendicular to the tapped bore line of centers, this section is driving surface, the opposite, section is the curved surface driving surface, tapped bore can adopt through hole or blind hole, and the nut both ends of the surface are parallel with the tapped bore line of centers, equidistantly or not equidistant.Wherein, 112 is two plane driving surfaces.
As shown in Figure 3, the cross-sectional plane of caterpillar block fastening nut is cylindrical 146, and driving surface is curved surface, and tapped bore can adopt through hole or blind hole, and the nut both ends of the surface are parallel with the tapped bore line of centers, equidistantly or not equidistant.
Shown in Fig. 5 a, the driving surface 143 of track link 148 fastening nut steady job grooves 144 is the plane, and work nest is shaped as the non-cylindrical through hole, and the non-cylindrical through hole communicates with fastening bolt holes 140, symmetrical with fastening bolt holes 140 line of centerss, the width of work nest is less than the diagonal line of fastening nut; The radius of the knuckle between work nest 144 dual-sides and the plane driving surface is less than the radius of non-cylindrical fastening nut 142, the width of driving surface 143 bottoms is greater than the width of fastening nut 142 driving surfaces with matching, driving surface 143 is parallel plane with two bottom surfaces of chain link, be parallel or non-parallel hole with the pin-and-hole at track link two ends, work nest top 147 is arch.This caterpillar block 56 tightens together with track link 148 by bolt 141 and fastening nut 142.
Non-cylindrical fastening nut 112,142 outside faces all have the plane driving surface, can be applicable to the work nest 144 bottom driving surfaces 143 in the track link 148, (Fig. 5 a) in the enlarged drawing fastening nut 142 (X-Y) be the curve of laying in a coffin and dwindling, so that the face width at Y point place is made the width of face less than work nest bottom 143T, the X point is greater than the vertical distance that project to tapped bore line of centers of Y point at horizontal surface.Utilize exactly this greater than difference, utilize the curved surface characteristic of non-cylindrical fastening nut outside face, make work nest bottom and the fillet at dual-side turning increase the commensurate structure requirement, and unstressed centrostigma again dual-side width reduces, be reduced to the diagonal line less than the non-cylindrical fastening nut, like this, non-cylindrical fastening nut 142 just can not rotate in work nest 144.
Because the radius of non-cylindrical fastening nut 142 is greater than the radius of the knuckle between dual-side and the driving surface, (width of work nest is greater than non-cylindrical fastening nut diameter 2-8mm), the X point contacted with work nest 144 sides first when nut rotated, and any interference does not occur between bottom Y point and the driving surface 143, reach the installation code of plane driving surface fully, the X point stops its nut to continue to rotate the purpose that reaches fixing with contacting of work nest 144 sides.The curved surface obstacle climbing ability is strong, catching phenomenon can not occur when nut curved surface outer surface contacts with track link work nest 144 sides in the precession process, and dismounting need not be by other auxiliary setting tool.
Shown in Fig. 5 b, the driving surface of track link 149 fastening nuts 146 steady job grooves is curved surface, work nest is shaped as cylindrical hole 145, cylindrical hole 145 and caterpillar block fastening bolt holes be 140 vertical, communicate, axis of symmetry and fastening bolt holes 140 central lines, the work nest width is less than the diagonal line of fastening nut 146, and driving surface is on the inside face of cylindrical hole 145, with two bottom surfaces of chain link be parallel surfaces, be parallel or non-parallel hole with track link two ends pin-and-hole.This caterpillar block 56 tightens together with track link 149 by bolt 141 and nut 146.
The driving surface of track link 149 fastening nut steady job grooves 145 adopts curved surface, matches with the contact surface of cylinder type fastening nut 146.Therefore, the cooperation that can realize ideal is to reach in conjunction with closely fixing effective purpose.
At present, need to assist setting tool when the U-shaped nut in the prior art field has directivity, outer cubic nut dismounting, and adopt cylindrical fastening nut 146 of the present invention just to need not these conditions.The driving surface of nut 146 does not have directivity, and arbitrarily one side all can be used as driving surface, and the desirable tolerance clearance of work nest 145 is between 1-5mm, therefore, nut only has very little degree of freedom and angle of inclination after entering groove, and its diagonal line again can not be followed bolt and rotate greater than the width of work nest.In fastening nut 146 just is limited in after entering steady job groove 145, with the joint of binding bolt, separate can only lean on bolt move axially realize, show as that bolt is moving and nut is relatively static, this move mode with existing U-shaped, outer square fastening nut is opposite.The mobile expression in sleeve of outer six square end heads enters or withdraws from, exposed the bolt shank termination when bolt just engaged with nut, with keeps entirely contacting during the sleeve spanner begins, and needn't worry with sleeve spanner area of contact littlely, and the slippage of appearance causes the deficiency of mutual damage.Need not assisting fixedly, operation brings convenience to assembling, dismounting.
Shown in Fig. 5 c, the caterpillar block fastening bolt holes 140 of track link 108 bottom surfaces communicates with the cross-drilled hole of end, and two centerline holes are vertical, crossing.The processing that two holes communicate to fastening bolt holes and hole negative thread has brought convenience, has also brought the problems such as pollution, corrosion simultaneously, and the caterpillar block binding bolt is twisted off.For this reason, be provided with sealing member at the two ends of caterpillar block fastening bolt holes 140 negative threads.Wherein:
Head end, the coaxial place of caterpillar block fastening bolt holes 140 line of centerss in track link 108 bottom surfaces is provided with a stepped hole 110, place the sealing member elastic rubber ring in this stepped hole, when the caterpillar block binding bolt enters in the hole, radially, the external diameter of binding bolt 141 contacts with the medial surface of elastic rubber ring, the lateral surface of elastic rubber ring contacts with the medial surface of stepped hole 110 and realizes sealing simultaneously, axially, an end face of elastic rubber ring touches with the bottom connection of stepped hole, the other end contact realization and seals with the mounting plane of caterpillar block.
Another head end is provided with an annular groove 110 away from the chain link bottom surface at the coaxial place of caterpillar block binding bolt centerline hole of track link bottom surface, places the sealing member elastic rubber ring in this groove.When the caterpillar block binding bolt enters in the hole, contact with the medial surface of elastic rubber ring at the external diameter of binding bolt 141 radially, be limited at the axial elasticity rubber ring and realize sealing in the groove.
End, circle is leant on the hole, the ladder circle is leant on hole or conical bore to forming between cross-drilled hole at caterpillar block fastening bolt holes negative thread termination, is used for placing the corresponding circle of the with it shape of being made by rubber or polyurethane and leans on body or cone sealing member; The negative thread termination between cross-drilled hole not machining screw realize smooth outside face.Use first the drill bit less than internal thread diameter that fastening bolt holes is drilled through the round hole of leaning on of formation; And then the hole of drilling negative thread, the internal thread hole end does not drill through with cross-drilled hole must produce a shoulder 112 in the place of passing through mutually, and this shoulder to screw tip is that the ladder circle is leant on the hole; Also the end of internal thread hole can be processed into conical bore between cross-drilled hole.
Another end is provided with cylindrical cross-drilled hole vertical with bolt hole, that communicate at the end of caterpillar block fastening bolt holes, places sealing member in this cross-drilled hole, and this cross-drilled hole is again the working hole for subsequent use of cylindrical caterpillar block fastening nut.
The cylinder type through hole that the negative thread top is set, the seal bore that namely is screw thread is again the hole for subsequent use of caterpillar block fastening nut, its maintainability is strong, binding bolt is if any fractureing, can conveniently take out as through hole, negative thread can adopt hole for subsequent use if any damaging, and the overall efficiency of track link is brought into play on year-on-year basis.
The encapsulation of caterpillar block fastening bolt holes female ends:
Lean on the hole for circle: adopt the cone sealing member to hold greatly and in rear load hole 140, needn't arrive the restriction position, the termination contacts beginning deformation and pushes hole wall with sealing member in the precession process of binding bolt 141, continuation precession sealing member is forced to move is combined closely with hole wall, and realization seals (not shown) to treat to put just by the caterpillar block binding bolt in place.
Lean on the hole for the ladder circle: a cylinder rubber seal 109 is placed in the hole to being stopped by shoulder 112, when supporting sealing member 109, the termination of the binding bolt 141 of precession begins little deformation, when continuation precession binding bolt reached moment of torsion, the friction of the deformation increase of cylinder rubber seal and hole wall increased combination and closely realizes sealing.
For conical bore: the cone sealing member if small end front, large end after pack into and get final product (not shown).
Such as Figure 11 b, shown in the c, track link 1490, the driving surface of 1080 fastening nut steady job grooves is curved surface, the special-shaped through hole 1450 that the circumscribed two radius that is shaped as work nest does not wait or equal circle forms, 1110, this abnormity through hole 1450,1110 is vertical with caterpillar block fastening bolt holes 140, communicate, abnormity through hole 1450,1110 maximum widths are less than the diagonal line of fastening nut, minimum width is less than the diameter of fastening nut 146, fastening nut 146 is limited in special-shaped through hole 1450, in 1110 the work nest, abnormity through hole 1450,1110 at direction-changeable between two bottom surfaces up and down, the curved surface driving surface is at special-shaped through hole 1450, on 1110 the inside face, with two bottom surfaces of chain link be parallel surfaces, with track link 1490,1080 two ends pin-and-holes are parallel or non-parallel hole.
The work nest 1450,1110 that does not wait in the footpath or the circle that equates forms that externally slices into halves, the point of contact of the outer tangent line of fastening nut place circle is tending towards two circles middle less than radius not at the radius of a circle place.The minimum place of work nest 1450,1110 sides is less than the maximum of nut 146 diameters, can not cross the point of contact like this after nut 146 enters groove and is limited in work nest 1450,1110 the circle, to reach fixing purpose.Wherein, tangent line is by hyperbola or hyperbola and rectilinear(-al).Like this, but the track link of the different pitches of root a tree name adopts different outer tangent lines, makes the more reasonable structural design of track link.
Because the external diameter of same model fastening nut is certain.In fact, the external diameter of the relative nut 146 of diameter of nut place work nest 1450,1110, for keep work nest to nut the active constraint of minimum degree of freedom in groove stablize constant, reach if nut 146 enter groove namely be limited in groove 1450, in 1110 and can not cross the purpose at point of contact, transformable is work nest nut top part in addition, and the variation of this part and nut are limited, and it doesn't matter.Part is variable beyond the work nest nut top, is that the ability that track link bears under the maximum He of carrying is constant, and then realizes rational loss of weight and spoil disposal effect.Improve track link 1490,1080 hot worked manufacturabilities.Therefore, the shape and structure of large and small circle in a work nest appearred.As long as the part beyond the work nest nut top conforms to the requirement of the stressed and heat processing technique of track link, can also be other geometric configuration.Large and little is own relatively self-, is that the structure of the different pitches of track link need to and be selected and roll over, and the space segment at nut 146 tops can spread or shrink according to the difference of track pitch.
In a work nest, have wide, have narrow figure-8 structure to realize that the size of working hole is relatively constant, the large I of space segment beyond the working hole nut top is selected arbitrarily folding, this provides sufficient design condition for track link 1490,1080, be the work nest of prior art can't be obtained.All these comes from the positive camber of fastening nut 146.Track link 1490,1080 its fixed forms of fastening nut steady job groove and cylindrical work nest 145 are roughly the same.
Among Figure 11 a, track link 1480T makes groove 1440 and above-mentioned two work nests 1450,1110 fixed form roughly the same, and just driving surface is different, is the another kind of structure of track link 148 work nests.
Shown in Fig. 6 a, split type crawler belt connecting link 49 (hereinafter to be referred as track link 49), comprise: bearing pin 5 holes and guide 6 holes, the caterpillar block fastening bolt holes, the pre-connection hole, between bearing pin 5 holes of split type crawler belt connecting link 49 and guide 6 holes, be provided with the line of cut of complications, this is separated into the axle head chain link 51 of split formula crawler belt connecting link 49 and the cover end chain link 50 of split type crawler belt connecting link 49, be provided with double-deck connection teeth on the surface of this line of cut, at least be provided with a connection teeth on the upper strata, at least be provided with two connection teeths in lower floor, by being distributed in separately axle head chain link 51 and the ground floor and the Engage and disengage on minute dignity of the connection teeth on the second layer connecting surface that overlap end chain link 50.And making the caterpillar block fastening bolt holes of the split type crawler belt connecting link of this kind identical with the caterpillar block fastening bolt holes of same model track link, the initial point of line of cut can be in any one side of track link two bottom surfaces.
Set up plane right-angle coordinate take track link 49 pin shaft holes 59 centers as initial point 0, L, the connecting surface of K two line intersection point V ground floor tooth above pin shaft hole 59 consists of the first stress point, the V point is crossed track link pin shaft hole 59 near center, hole vertical line with respect to the projection of track link bottom surface, the outside at binding bolt 52, line of cut is crossed the first stress point V through last connection teeth of ground floor, wide-angle directly meets at the N point down to the joint face N-W of second layer connection teeth, so far, by the auxiliary connection teeth of the ground floor at the first stress point V place, the second layer master connection teeth at the second stress point N place (second layer connection teeth by several multiple tooth form stressed tooth group and consist of the main stress point), together with the 3rd stress point D of pin shaft hole below disjunctor part, consisted of the stable triangle of VND power.The foundation of the stable triangle of power, the joint face at second layer connection teeth (N-W) place and the angle α of chain link bottom surface are dynamically adjusted, make the extended line of upper and lower two-layer connection teeth addendum face of split type crawler belt connecting link parallel or crossing, plane, addendum face place is being dynamically changeable with respect to the angle α of chain link two bottom surfaces between 0 °≤α≤29 °, and take plane E-F, the N-W at second layer connection teeth place as the assembling reference plane.
Angle α is lower than 15 ° that have angle now and be down to this figure, low angle is lengthened N-W (E-F) naturally, the driving surface number of teeth increases stress point and disperses, because angle α reduces, reduction is just followed on the inclined-plane at connection teeth place, connection teeth β angle also changes thereupon, and the stressed driving surface of the connection teeth of split type crawler belt connecting link is being dynamically changeable with respect to the angle β of chain link two bottom surfaces between 60 °＜β＜100 °.This variation changes the force direction that is subjected to of connection teeth, has reduced the friction stress that is subjected to of the component of tooth and tie bolt, and then has improved the Joint strenght of chain link 49.Changed the deficiency (Fig. 6 c) that existing single, double, multiple tooth the first stress point is on the low side, take over, the present embodiment still can be implemented (Fig. 6 b) when the angle of α is down to 0 °.
Track link 49 is two split parts, the setting of ground floor connection teeth, solved the deficiency that overlength is separated between point of penetration to the first stress point, ground floor connection teeth 54,55 are pulled in the connection by tooth of the separating part (M-N) of line of cut in the prior art (shown in Fig. 6 c) together mutually, chorista is become connector its tensile strength under identical external load function obviously to be improved, show by comparison, before the N point of track link 49 in prior art Fig. 6 c how one deck connection teeth, and for Fig. 6 c in the M-N section without any connection, stress point N separates to line of cut entrance M point overlength, the connecting link tensile strength that can imagine prior art greatly reduces, corresponding point differ the difference of a h=h0-h1, take the N point trend of being pulled open is arranged as axle, external load concentrates on stress point or is carried on the binding bolt, especially work as chain link and operate in drive wheel, when the extra curvature of track adjusting wheel is surperficial, it affects larger when being subjected to force direction that about 30 ° deflection occurs, the periodically variable impact of connecting link tension stress among prior art Fig. 6 c, divide the metal fatigue of the honorable front turning of N point and binding bolt can accelerate US4365848, CN1294070A, all there is this tendency in CN2818282Y.
Further relatively show, track link 49 stress point driving surface summations are greater than the summation of Fig. 6 c, stress point disperses carrying steadily again, track link 49 connection teeth initial and ends two stress points are all in the fastening bolt holes outside, and its stress point covers in the projection of the track link 49 bottom surfaces projection with the initial and end stress point of prior art Fig. 6 c.Therefore, track link 49 can be selected the connection dimension identical with the caterpillar block fastening bolt holes of the disconnected chain link of this model without restriction, realizes that caterpillar block exchanges and unification.
Shown in Fig. 7 a, c, the different pitch track link two hole lines of centres to the height of working face of guide rail changes.Yet the fixing wide-angle incision line of existing employing obviously is irrational, and is opposite:
Incision line between the end of split type crawler belt connecting link 49 upper strata connection teeths and lower floor's connection teeth initiating terminal is being dynamically changeable with respect to the angle theta between track link two bottom surfaces between-90 °＜θ＜90 °, wherein:
When the θ angle of incision line during less than 90 °, the first auxiliary connecting surface and the first main connecting surface be at the projection of horizontal surface overlapping (seeing Fig. 7 a, c), (N-W) section growth;
When the θ angle of incision line equaled 90 °, the first auxiliary connecting surface and the first main connecting surface were at the projection sum of horizontal surface constant (scheming not shown), and (N-W) section is constant:
When the θ angle of incision line during greater than 90 °, the first auxiliary connecting surface reduces in the projection sum of horizontal surface with the first main connecting surface (sees Fig. 6 a), (N-W) section minimizing;
In fact, because the effect of ground floor pulling force tooth has had the α, the θ angle that change, variable β angle has been arranged.Like this, provide technical support for the design of the track link 49 of different pitches, to eliminate or to alleviate connection teeth to the shearing of binding bolt, its component that acts on the flank of tooth is reduced gradually or be cancelled, connection teeth position and profile of tooth are more rational.
The incision line of split type crawler belt connecting link, when θ angle＜90 °, the β angle problem just occurred during greater than the θ angle, and track link 49 can not separate along line of cut.Therefore, between M-N, be provided with a hollow groove 47, but move along the axle head chain link 51 of the split type crawler belt connecting link of hollow groove and cover end chain link 50 easy on and off of split type crawler belt connecting link, realize combination and separate.
The ground floor tooth of connection teeth and the profile of tooth of second layer tooth can be the same or different, but the combination that the ground floor tooth can not affect second layer tooth with separate, between M-N the hollow groove movably distance mutually combine and separate required height and equate at least with between connection teeth, or greater than mutually combining and separating required height.
The θ angle is during less than 90 °, and the turn back ground floor tooth and the second layer tooth that make connection teeth of incision line is overlapping in the projection of chain link bottom surface, increases thus the total length of connecting surface, and then the reliability that the work number of teeth increases connection further strengthens.The connection driving surface of second layer tooth can be reduced to ideal height, the tooth profile angle β of connection teeth driving surface changes in ° scope of 60 °＜β＜100, the β tooth profile angle can strengthen when the α angle is reduced to less than 29 °, and the β tooth profile angle component that the connection teeth driving surface produces during greater than 90 ° makes the connection of chain link 49 tightr; The component that produces when the β tooth profile angle equals 90 ° is zero, and the β tooth profile angle is optimal selection when being equal to or greater than 90 °.So far, the invention provides this selection.
When β＜90 °, produce a component along the second layer flank of tooth, this component consists of the caterpillar block binding bolt to be sheared, and the ground floor back of tooth after the cutting out part 48 and reinstall the original place of hollow groove 47 is offset between the component that produces on the second layer flank of tooth is by M-N thus.The cutting out part 48 and whether reinstall the original place and decide on the specification of crawler belt size of hollow groove, cutting out when partly reinstalling the original place (Fig. 7 a, c) of hollow groove, binding bolt can be lengthened to pass and cut out part and cut out the part pinning with holes, the part 48 that cuts out of hollow groove stays put and has eliminated the degree of freedom that moves up and down between track link, the axle head chain link just can not separate with cover end chain link, makes the connection of chain link 49 increase safety lock one.
Split type crawler belt connecting link 49 plays the formula of the hiding structure 53 of connection function or exposes the pre-connection bolt of formula structure 58 when being provided with an assembling in the middle of two fastening bolt holes 57, the caterpillar block corresponding with exposing formula structure 58 pre-connection bolts is provided with through hole.
After track link 49 engages, the pre-connection bolt 53,58 that plays connection function is screwed in tapped bore and tighten by standard torque, that installs then that caterpillar block can be easy and convenient makes the crawler belt docking again.
The N-W straight line was on axle head chain link 51 after track link 49 separated, and the E-F straight line is on cover end chain link 50, and the E-F on minute dignity, N-W have enough straight lengths need not just can satisfy take track link two bottom surfaces as benchmark the requirement of assembly precision.Therefore, during assembling, take plane E-F, the N-W at second layer connection teeth place as the assembling reference plane.Guarantee that left and right two track links divide dignity to be press-fit into place again in a plane.At this moment, two bottom surfaces of track link 49 are also in a plane.The track link 49 at the multiple tooth straight line driving surface of the lengthening that is comprised of double-deck connection teeth and variable α, β, θ angle has increased Joint strenght, assembly precision and speed.
Shown in Fig. 8,9, entire track connecting link 60 (hereinafter to be referred as track link 60) comprising: be used for pin shaft hole 65 and the guide hole 66 of connecting band track chain link 60, caterpillar block fastening bolt holes 69 is waitd upon and is taken tapped bore 68, expansion slot 63; The inwall at least one hole of this expansion slot in described pin shaft hole 65 and guide hole 66 extends to predetermined length.For example, begin to end to cover end inner hole wall 10-50mm from axle head endoporus 65 walls, or begin only to open an expansion slot to axle head inner hole wall 10-50mm from track link cover end inner hole wall.But be used for the part of entire track connecting link is divided into first and the second portion of relative displacement.For example, among Fig. 8 a, 8b, Fig. 9 a, Fig. 9 b, first and second portion are not part and expansion slot 63 and the part above the hole 65 below expansion slot 63 and the hole 65 substantially.
The optional position of track link 60 in first is provided with at least one and waits upon and take tapped bore 68, takes bolt 62 for use in installing to expand to wait upon.Preferred mode is: plays waiing upon of expansion and takes tapped bore 68 and be arranged in the middle of two fastening bolt holes 69, and vacant again in the middle of expansion slot 63 herein, be the place of Flexible change amount maximum.So, arrange herein wait upon take tapped bore 68 can be with the maximum effect of expansion.For making crawler belt easy to connect, wait upon the screw thread that takes tapped bore 68 also can be identical with the screw thread of binding bolt 61.
The expansion slot 63 of track link 60 is located on the line at pin shaft hole 65 and guide hole center, 66 liang of holes or is located at any side of the two hole lines of centres, and its width is greater than 0.12mm.
Be the termination hole perpendicular to any one hole on track link 60 outside faces between 60 liang of bottom surfaces of track link.
The expansion slot 63 of track link 60 and finishing 64 are the combination of straight line, curve or straight line and curve.
The caterpillar block binding bolt of track link 60 and lock bolt are for hiding formula structure and two kinds on exposure formula structure; with hide the neighboring of the corresponding caterpillar block fastening bolt holes of formula structure and be provided with the protective device that is higher than the binding bolt termination; (preferred mode is periphery side weld knot sleeve and the reinforced rib at the caterpillar block fastening bolt holes; do not show among the figure); the termination that makes binding bolt is in the state of hiding and easy to wear being protected not, is convenient to dismounting.The caterpillar block corresponding with exposing the formula structure is provided with through hole, in case the termination of caterpillar block and binding bolt interferes.
As shown in Figure 8, pin shaft hole 65 causes hydraulic seal to lose efficacy from the air-proof condition that inner hole wall beginning expansion slot has destroyed the chain link counterbore.For this reason, adopt grease lubrication, connection bearing pin center oil nose end mouth at the entire track connecting link is installed zerk, and in the stepped hole that zerk is in exempt to collide, after grease enters the lubricated surface of axle, inner room through zerk, intersect opening part from pin shaft hole 65 with expansion slot 63 and overflow, stoped the intrusion of pollutants to be limited sealing, its good maintainability is better than the split type connection that adapts to various crawler belt.
When by the following technical solutions, can recover hydraulic seal.
Shown in Figure 10 a, b, track link 60 also comprises poted assemblies 1,34,44,125, and the sealing assembly is used for preventing that the lubricating oil that accommodates a hole of lubricating oil from leaking by described expansion slot 63.
Adopt diplopore and connect the relay form that communicates to increase the radial width of sealing member, the elastic rubber ring 1 in an end of guaranteeing cylindrical hole 45 inner seal liners and the chain link counterbore, 125 bottom contacts realization and seal.Diplopore also connects the diameter of single hole is reduced, excessively the width of groove 46 is used for stopping that less than the diameter of cylindrical hole 45 sidesway occurs the rubber strip 34 in the first cylindrical hole 45, guaranteeing that rubber strip 34 is combined with cylindrical hole 45 inside faces closely with anti-leak, the sealing member 44 that is provided with in the groove 43 respectively with the outside face of bearing pin 5 and sealing member 34 side seals in the cylindrical hole 45.
Shown in Figure 10 a, track link 60 pin shaft hole sealing member installation processes are as follows:
Manually an Elastic Cylindrical rubber strip 34 is elongated, crossing excessive groove 46 and the first cylindrical hole 45 enters in the second cylindrical hole 45, Elastic Cylindrical rubber strip 34 approximate reinstatements were combined closely with the second cylindrical hole 45 after external force was removed, and an end face of rubber strip 34 is flushed with track link 60 counterbores 4 bottom surfaces, so just can guarantee the seamless link of the special-shaped elastic rubber ring 125 of rubber strip 34 and track link 60 counterbores 4 bottoms, again repeat elastic rubber strip 34 is packed in the first cylindrical hole 45, the side close contact of the rubber strip 34 after external force is removed in a side of elastic rubber strip 34 and second cylindrical hole 45 of packing into is first realized sealing, another side of elastic rubber strip 34 contacts with the intimate of the sealing member 44 of putting into afterwards groove 43 realizes that sealing, the inside circumferential surface of sealing member 44 exceed pin shaft hole 65 circumferential inside face parts and contact the realization sealing with the intimate of bearing pin 5.The expansion slot slit dwindles after tightening the caterpillar block binding bolt, and poted assemblies elasticity further strengthens to guarantee lasting sealing.
The method of attachment one of crawler belt
Such as Fig. 8,9, shown in 10, and referring to Figure 12, cross pin shaft hole as example take expansion slot, adopt common wrench, take first that bolt 62 screws in entire track connecting links 60 and wait upon and take in the tapped bore 68 waiing upon, wait upon and take bolt 62 under the effect of twist moment, crossing expansion slot 63 contacts with second portion and makes expansion slot 63 begin to expand, and the promotion second portion separates two parts, be pulled to finishing 64 to stopping hole 76 beginning elastic deformations by the expansion slot middle part to opposite separately direction, continue to strengthen and wait upon the twist moment that takes bolt, make the enlarged-diameter of pin shaft hole 65 to the diameter greater than bearing pin 5.At this moment, bearing pin 5 is aimed at the pin shaft hole 65 usefulness hands of connecting links and just can be packed into easily, the pin shaft hole 65 that mistake pin shaft hole 65, guide hole enter the other end puts in place, unload wait upon take bolt 62 after, treat the caterpillar block 67 caterpillar block binding bolts 61 that tighten in place.Thus, the first of track link 60 and second portion are fixed together realize the crawler belt docking.Bearing pin gives under the tight power long term at bolt and cooperating firmly with pin shaft hole, gets final product according to the reverse order of installing when dismounting.
It is pointed out that track link 60 counterbore inner seal liners under free state between sealed at both ends shortest distance can not integral translation reach the requirement spacing less than the length of guide behind the sealing surface of lip formula sealing member 118 part pressurized.Guide can't enter assembling position, needs to adopt elastic rubber ring 1 and the planar seal form that becket 2 forms to seal, shown in Fig. 2 c.Adding the assembling tool with negative thread between two becket sealing surfaces contacts with a part of sealing surface of becket, when reversing sense reverses, it is compressed that assembling tool length increases elastic rubber ring, makes distance between two becket sealing surfaces greater than the length of guide.Guide can the accessible head and the tail coupled condition that enters of integral translation.At this moment, the guide ecto-entad partly enters assembling position, and guide can all enter behind the assembling tool to be removed.
The method of attachment two of crawler belt
As shown in figure 12, the employing hybrid mode connects, by a among the figure, b, c, shown in the d, track link 49 is combined into one group with track link 60, namely a side is entire track connecting link 60, opposite side is split type crawler belt connecting link 49, split type crawler belt connecting link 49 is comprised of axle head chain link 51 and cover end chain link 50, at first, guide end with track link 60, split type cover end chain link 50 and guide 6 press-fit be one group as head end, it is tail end that track link 108 is connected to assembling complete, and make the equal in length of connection guide 6 with the track link assembling guide 6 of tail end track link 108, described sealing member pack into head end separately in the counterbore 4 of axle head chain link, again expansion is waitd upon and take bolt 62 and screw in to wait upon and take tapped bore 68 interior (not shown)s, the pin shaft hole 65 of head end track link 60 is expanded to greater than bearing pin 5 diameters, after tail end is moved to the junction of head end integral type connecting link 60, and the pin shaft hole 65 of head end track link 60 is aimed in guide 6 holes that make tail end, at this moment, manually with split type axle head chain link 51 with bearing pin 5 hole of aiming at tail end guidees 6 penetrate, cross the pin shaft hole 65 that guide 6 holes enter head end, split type axle head chain link 51 and cover end chain link 50 are docked and adopt pre-connection bolt 53 fastening, the pin shaft hole outer face of track link 49 and track link 60 is flushed with the bearing pin outer face, endplay was just adjusted end when two datum coincidences were in a plane after the assembling, after caterpillar block is in place, tighten oiling behind the caterpillar block binding bolt, so far, adopt the crawler belt of hybrid mode to connect complete
It is to be noted, among the embodiment in method two except adopt being connected of known split type axle head chain link 51 and bearing pin 5 press-fit, the pin shaft hole 59 (or guide hole of cover end chain link 50) that also can cross split type axle head chain link 51 takes tapped bore 68 (shown in Fig. 7 b) to opening and arrange to wait upon between minute dignity, the pin shaft hole 59 of split type axle head chain link 51 is expanded to greater than pin diameter, execute-in-place is packed bearing pin in the pin shaft hole 59 of split type axle head chain link 51, screw in tapped bore 200 with lock clasp by lock bolt again, in the situation that without mounting equipment, realize that the on-site manual under the crawler belt connecting link transverse splicing state is tightly connected, and makes the connection of hybrid mode have more practicality.
To sum up, the method for attachment one of crawler belt and the enforcement of method of attachment two, the connection mode that the people that are through with adopt artificial sledgehammer to hit bearing pin and spring cotter locking bearing pin for a long time makes the connection of the crawler belt simple and fast, safe and reliable that becomes.
The invention is not restricted to above-described embodiment, to those skilled in the art, any improvement that the above embodiment of the present invention is made or change can not exceed the embodiments of the invention that only illustrate by way of example and the protection domain of claims.
Claims (34)
1. track link, it is characterized in that: the pin shaft hole of track link and pin shaft hole outer face intersection be provided with a stepped hole or in pin shaft hole peripheral surface groove is set, its stepped hole or groove are apart from the vertical depth of the pin shaft hole outer face vertical depth greater than bearing pin two chamfers, the external diameter of stepped hole or groove is greater than pin diameter, and make track link pin shaft hole outer face and bearing pin outer face be the assembling reference plane, two benchmark flush and overlap in a plane after the assembling, when the track link working face of guide rail makes progress horizontal positioned, be provided with depressed part at track link working face of guide rail interlude and driving surface intersection, interlude side, or vertically middle to having depressed part perpendicular to track link working face of guide rail interlude, the side of track link refers to independent medial surface, independent lateral surface or medial surface and lateral surface sum, described depressed part has the part of cutting, and cuts part by this Effective width of a plurality of track link driving surfaces is consistent along the longitudinal direction;
Wherein, described depressed part is shaped as at least one continuous rectilinear form and curve shape on working face of guide rail; Or rectilinear form and the curve shape of at least one interruption.
2. track link according to claim 1 is characterized in that: the outer chamfer surface of the end face of the guide that is connected with track link is linear portion, and the outside face at linear portion place is sealing surface, and the small round corner transition structure is adopted at the two ends of linear portion.
3. track link according to claim 1, it is characterized in that: bearing pin lubricating oil through hole is angling hole with respect to bearing pin center oilhole, two hole angles are less than 90 °.
4. track link according to claim 1, it is characterized in that: the bearing pin center oilhole that is connected with track link is the stepped appearance through hole.
5. track link according to claim 1, it is characterized in that: the oil hole of the bearing pin that is connected with track link is provided with the annular recess that is lower than port.
6. track link according to claim 1, it is characterized in that: the bearing pin that is connected with the crawler belt connecting link is identical with the bearing pin outside dimension that is connected with track link.
7. track link according to claim 6 is characterized in that: in the stepped hole that bearing pin center oilhole exempts to collide zerk is installed.
8. track link according to claim 1, it is characterized in that: the cross-sectional plane of the caterpillar block fastening nut that is connected with track link is non-cylindrical, the outside face of non-cylindrical fastening nut has a section perpendicular to the tapped bore line of centers, this section is driving surface, the opposite, section is the curved surface driving surface, tapped bore can adopt through hole or blind hole, and the nut both ends of the surface are parallel with the tapped bore line of centers, equidistantly or not equidistant.
9. track link according to claim 1, it is characterized in that: the cross-sectional plane of the caterpillar block fastening nut that is connected with track link is cylindrical, driving surface is curved surface, and tapped bore can adopt through hole or blind hole, and the nut both ends of the surface are parallel with the tapped bore line of centers, equidistantly or not equidistant.
10. track link according to claim 1, it is characterized in that: the driving surface of track link fastening nut steady job groove is the plane, work nest is shaped as the non-cylindrical through hole, the non-cylindrical through hole communicates with fastening bolt holes, symmetrical with the binding bolt centerline hole, the work nest width is less than the diagonal line of fastening nut, the radius of the knuckle between dual-side and the driving surface is less than the radius of non-cylindrical fastening nut, the width of driving surface bottom is greater than the width of fastening nut driving surface with matching, driving surface is parallel or non-parallel hole with the pin-and-hole at track link two ends, and the work nest top is arch.
11. track link according to claim 1, it is characterized in that: the driving surface of track link fastening nut steady job groove is curved surface, work nest is shaped as cylindrical hole, cylindrical hole is vertical with the caterpillar block fastening bolt holes, communicate, axis of symmetry and fastening bolt holes central lines, the work nest width is less than the diagonal line of fastening nut, and driving surface is parallel or non-parallel hole with track link two ends pin-and-hole on the inside face of cylindrical hole.
12. track link according to claim 1, it is characterized in that: the caterpillar block fastening bolt holes of track link bottom surface communicates with the cross-drilled hole of end, two centerline holes intersect vertically, and be provided with sealing member at the two ends of caterpillar block fastening bolt holes negative thread, wherein: a kind of head end of form is provided with a stepped hole in the track link bottom surface with the coaxial place of line of centers that the caterpillar block fastening bolt holes intersects, and the sealing member elastic rubber ring is set in this stepped hole; Terminal caterpillar block fastening bolt holes negative thread termination to form cylindrical hole between cross-drilled hole, the ladder circle is leant on hole or conical bore, be used for placing made by rubber or polyurethane lean on cylinder or the cone sealing member that hole, ladder cylindrical hole or conical bore shape match with circle; The head end of another kind of form is provided with an annular groove away from the track link bottom surface at the coaxial place of caterpillar block binding bolt centerline hole of track link bottom surface, places the sealing member elastic rubber ring in this groove; End is placed sealing member in cross-drilled hole, this cross-drilled hole is again the working hole for subsequent use of the cylindrical fastening nut of caterpillar block.
13. track link according to claim 1, it is characterized in that: the driving surface of track link fastening nut steady job groove is curved surface, the special-shaped through hole that the circumscribed two radius that is shaped as work nest does not wait or equal circle forms, the abnormity through hole is vertical with the caterpillar block fastening bolt holes and communicate, the maximum width of abnormity through hole is less than the diagonal line of fastening nut, the minimum width of abnormity through hole is less than the diameter of fastening nut, and special-shaped through hole is parallel or non-parallel hole at direction-changeable between two bottom surfaces up and down with track link two ends pin-and-hole; Wherein, tangent line is by hyperbola or hyperbola and rectilinear(-al), and the point of contact is tending towards two circles middle less than radius not at the radius of a circle place.
14. split type crawler belt connecting link, it is characterized in that: have the same structure in the claim 1, between the pin shaft hole of split type crawler belt connecting link and guide hole, be provided with the line of cut of complications, this is separated into axle head crawler belt connecting link and cover end crawler belt connecting link, be provided with double-deck connection teeth on the surface of this line of cut, at least be provided with a connection teeth on the upper strata, at least be provided with two connection teeths in lower floor, by being distributed in separately axle head crawler belt connecting link and the ground floor and the Engage and disengage on minute dignity of the connection teeth on the second layer connecting surface that overlap end crawler belt connecting link, and making the caterpillar block fastening bolt holes of described split type crawler belt connecting link identical with the caterpillar block fastening bolt holes of same model track link, the initial point of line of cut is in any one side of two bottom surfaces of crawler belt connecting link.
15. split type crawler belt connecting link according to claim 14, it is characterized in that: the extended line of the upper and lower two-layer connection teeth addendum face of split type crawler belt connecting link is parallel or crossing, plane, addendum face place is being dynamically changeable with respect to the angle α of chain link two bottom surfaces between 0 °≤α≤29 °, and is the assembling reference plane take plane, second layer connection teeth place.
16. split type crawler belt connecting link according to claim 14 is characterized in that: the stressed driving surface of the connection teeth of split type crawler belt connecting link with respect to the angle β of chain link two bottom surfaces between 60 °＜β＜100 °.
17. split type crawler belt connecting link according to claim 14, it is characterized in that: the end of split type crawler belt connecting link upper strata connection teeth is to the incision line between lower floor's connection teeth initiating terminal, with respect to the angle theta between chain link two bottom surfaces between-90 °＜θ＜90 °.
18. split type crawler belt connecting link according to claim 14, it is characterized in that: the incision line of split type crawler belt connecting link, when θ angle＜90 °, be cut the part that line separates at described split type crawler belt connecting link and be provided with a hollow groove, realize combination and separate but move along the split type axle head crawler belt of hollow groove connecting link and cover end crawler belt connecting link easy on and off.
19. split type crawler belt connecting link according to claim 14, it is characterized in that: split type crawler belt connecting link plays hiding of connection function or exposes formula pre-connection bolt when being provided with an assembling in the middle of two fastening bolt holes, the caterpillar block corresponding with exposing formula pre-connection bolt is provided with through hole.
20. an entire track connecting link is characterized in that: have the same structure in the claim 1, the entire track connecting link comprises: the pin shaft hole of entire track connecting link and guide hole; The caterpillar block fastening bolt holes is waitd upon and is taken tapped bore, expansion slot; The inwall at least one hole of this expansion slot in described pin shaft hole and guide hole extends to predetermined length, but the part of track link is divided into the entire track connecting link that is comprised of first and second portion of relative displacement; Wait upon and take in the chain link that tapped bore is located at first, take bolt and be screwed into waiing upon of first and take in the tapped bore and promote second portion two parts are separated by waiing upon, make the enlarged-diameter at least one hole in described pin shaft hole and the guide hole to the diameter greater than bearing pin and guide, make things convenient for thus the installation of bearing pin and guide, unload wait upon take bolt after, tightening the caterpillar block binding bolt approaches first and second portion, make the Zhi Jing Shrink in pin shaft hole and at least one hole, guide hole little, bearing pin is connected described pin shaft hole is connected with the guide hole and realizes that crawler belt connects at least one with guide.
21. entire track connecting link according to claim 20, it is characterized in that: the expansion slot of described entire track connecting link is located on the line at pin shaft hole and center, two hole, guide hole or is located at any side of the two hole lines of centres, and its width is greater than 0.12mm.
22. entire track connecting link according to claim 20 is characterized in that: the expansion slot terminal point of described entire track connecting link is provided with finishing, and the terminal point of finishing is provided with and stops the hole.
23. entire track connecting link according to claim 20 is characterized in that: described entire track connecting link is the termination hole perpendicular to any one hole on the chain link outside face between entire track connecting link two bottom surfaces.
24. entire track connecting link according to claim 20 is characterized in that: the expansion slot of described entire track connecting link and finishing are the combination of straight line, curve or straight line and curve.
25. entire track connecting link according to claim 20 is characterized in that: described entire track connecting link is provided with connection teeth at expansion slot and finishing, and makes between the driving surface of connection teeth and track link two bottom surfaces open-minded.
26. entire track connecting link according to claim 20 is characterized in that: described entire track connecting link increases a locking screw pit at least between pin shaft hole and guide hole.
27. entire track connecting link according to claim 20 is characterized in that: the caterpillar block binding bolt of described entire track connecting link and lock bolt are for hiding formula structure and two kinds of structures of exposure formula structure.
28. entire track connecting link according to claim 20 is characterized in that: the caterpillar block fastening bolt holes of described entire track connecting link, locking screw keyhole and to wait upon the end that takes tapped bore be blind hole or through hole.
29. entire track connecting link according to claim 20 is characterized in that: described entire track connecting link also comprises poted assemblies, and poted assemblies is used for preventing that the lubricating oil that accommodates a hole of lubricating oil from leaking by described expansion slot.
30. entire track connecting link according to claim 20, it is characterized in that: described entire track connecting link is provided with groove at the pin shaft hole inner circumferential surface, be provided with the cylinder type through hole in the bottom of groove and the expansion slot of pin shaft hole coaxial direction, bottom portion of groove communicates with cylinder type through hole one side, the cylinder type through hole also communicates between adjacent side, the cylinder type through hole communicates with the bottom of the counterbore of entire track connecting link, and the excessive groove less than the cylinder type through-hole diameter is set between cylinder type through hole and pin shaft hole.
31. seal lubrication type crawler belt, it is characterized in that: have the described track link of one of claim 1-13, the described crawler belt connecting link of one of claim 14-30, and the bearing pin, the guide that are connected with track link, crawler belt connecting link, caterpillar block fastener and caterpillar block form;
Take bearing pin outer face and pin shaft hole outer face as the assembling reference plane, the dimension chain of each correlated parts is set out by the initial point of reference plane, and the working accuracy that guarantees its correlated parts is in dimension limit, by the liquid sealing device and the guide side seal face that are located in the track link counterbore, the lateral surface of guide side seal face, contact between the external port of track link counterbore, two datum coincidences are in a plane after the assembling, track link pin shaft hole outer face is flushed with the bearing pin outer face, realization has the hydraulic seal of dust reduction capability, at this moment, the endplay of guide, the package size of the caterpillar block fastening bolt holes on the every pair of track link bottom surface all reaches in scope of design simultaneously, like this, adopt two datum coincidences in a plane, can improve assembly precision and the speed of track link, and the sealing member at when screwing in screw thread in the track link fastening bolt holes by the caterpillar block binding bolt and bolt hole negative thread two ends comes in contact, make its sealing member produce the sealing that deformation realizes bolt hole negative thread two ends, when realizing sealing, also realized being fastenedly connected of caterpillar block and track link; Perhaps be connected by the track link of caterpillar block binding bolt with the caterpillar block fastening nut steady job groove with plane, curved surface face structure, caterpillar block and track link are fastened together, and then by the method for attachment one of crawler belt or the method for attachment two end to end seal lubrication type track rail assemblys that consist of ring-type of crawler belt.
32. the method for attachment of a crawler belt, it is characterized in that: at first adopt common wrench, take head end first that bolt screws in the entire track connecting link and wait upon and take in the tapped bore waiing upon, wait upon and take bolt under the effect of twist moment, crossing expansion slot contacts with second portion and makes expansion slot begin to expand, and the promotion second portion separates two parts, by expansion slot to finishing, stop the hole and begin elastic deformation, continue to strengthen and wait upon the twist moment that takes bolt, make the enlarged-diameter of pin shaft hole to the diameter greater than bearing pin, after tail end is moved to the junction of head end entire track connecting link, and the pin shaft hole of head end integral type connecting link is aimed in the guide hole that makes tail end, at this moment, bearing pin is aimed at the pin shaft hole of connecting overall formula crawler belt connecting link and just can be packed into easily with hand, cross pin shaft hole, the pin shaft hole that the guide hole enters the other end puts in place, treat the caterpillar block binding bolt that tightens in place after taking bolt unloading to wait upon, thus, the first of entire track connecting link and second portion be fixed together realize the crawler belt docking, bearing pin cooperates firmly with pin shaft hole under the bolt pretightening long term, gets final product according to the reverse order of installing when dismounting.
33. the method for attachment of a crawler belt, it is characterized in that: adopt hybrid mode to connect, split type crawler belt connecting link and entire track connecting link are combined into one group, namely a side is the entire track connecting link, opposite side is split type crawler belt connecting link, namely formed by split type axle head crawler belt connecting link and cover end crawler belt connecting link, at first, cover end with the entire track connecting link, the cover end chain link of split type crawler belt connecting link and guide press-fit be one group as head end, it is tail end that track link is connected to assembling complete, and make the equal in length of the connection guide of described tail end track link and track link assembling guide, sealing member is packed in the counterbore of head end crawler belt connecting link, again expansion is waitd upon and take bolt and screw in to wait upon and take in the tapped bore, the pin shaft hole of head end entire track connecting link is expanded to greater than pin diameter, after tail end is moved to the junction of head end integral type connecting link, and the pin shaft hole of head end integral type connecting link is aimed in the guide hole that makes tail end, at this moment, manually with the axle head chain link of split type crawler belt connecting link with bearing pin aim at tail end guide hole and penetrate, cross the pin shaft hole that the guide hole enters head end, make the axle head chain link of split type crawler belt connecting link dock and adopt the pre-connection bolted with the cover end chain link of split type crawler belt connecting link behind the bearing pin hand-hole, the pin shaft hole outer face of split type crawler belt connecting link and entire track connecting link is flushed with the bearing pin outer face, endplay was just adjusted end when two datum coincidences were in a plane after the assembling, after caterpillar block is in place, tighten oiling behind the caterpillar block binding bolt, so far, adopt the crawler belt of hybrid mode to connect complete.
34. the method for attachment of crawler belt according to claim 33, it is characterized in that: the pin shaft hole of the axle head chain link of the split type crawler belt connecting link of process is to open-minded between minute dignity, and arrange to wait upon and take tapped bore the pin shaft hole of the axle head chain link of split type crawler belt connecting link is expanded to greater than pin diameter, manually bearing pin is packed in the pin shaft hole of axle head chain link of split type crawler belt connecting link, and replace press-fit approach in the claim 33 with this mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010245407.2A CN101947982B (en) | 2008-03-21 | 2009-03-20 | Track component and assembly method for constituting track |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2008/000564 | 2008-03-21 | ||
| CNPCT/CN2008/00056.4 | 2008-03-21 | ||
| PCT/CN2008/000564 WO2008113264A1 (en) | 2007-03-21 | 2008-03-21 | Sealing device and crawler with said sealing device |
| CN200810012798 | 2008-08-15 | ||
| CN200810012798.6 | 2008-08-15 | ||
| CN201010245407.2A CN101947982B (en) | 2008-03-21 | 2009-03-20 | Track component and assembly method for constituting track |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101190638A Division CN101544248B (en) | 2008-03-21 | 2009-03-20 | Hydraulic seal lubrication type caterpillar and connection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101947982A CN101947982A (en) | 2011-01-19 |
| CN101947982B true CN101947982B (en) | 2013-01-09 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010245407.2A Active CN101947982B (en) | 2008-03-21 | 2009-03-20 | Track component and assembly method for constituting track |
| CN2009101190638A Expired - Fee Related CN101544248B (en) | 2008-03-21 | 2009-03-20 | Hydraulic seal lubrication type caterpillar and connection method thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101190638A Expired - Fee Related CN101544248B (en) | 2008-03-21 | 2009-03-20 | Hydraulic seal lubrication type caterpillar and connection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101947982B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9403565B2 (en) * | 2012-08-07 | 2016-08-02 | Caterpillar Inc. | Track pin retention system and method |
| JP5775894B2 (en) * | 2013-03-06 | 2015-09-09 | 株式会社小松製作所 | Crawler belt connecting device |
| US20160339974A1 (en) * | 2015-05-21 | 2016-11-24 | Caterpillar Inc. | Chain assembly having a retention feature |
| CN105003649A (en) * | 2015-07-23 | 2015-10-28 | 成都广迈科技有限公司 | Connecting-device seal cartridge |
| US10040495B2 (en) * | 2015-12-08 | 2018-08-07 | Caterpillar Inc. | Laser brazing of annular metal seal member on track link |
| US10457343B2 (en) * | 2016-10-07 | 2019-10-29 | Caterpillar Inc. | Track chain assembly of undercarriage with link having increased pitch |
| CN106988373B (en) * | 2017-05-10 | 2022-08-23 | 徐州徐工矿业机械有限公司 | Positioning and anti-loosening device for track pin shaft of ultra-large hydraulic excavator |
| US10800469B2 (en) * | 2018-07-20 | 2020-10-13 | Caterpillar Inc. | Link assembly with threaded master pin |
| CN108766756B (en) * | 2018-08-02 | 2024-03-29 | 青岛云路先进材料技术股份有限公司 | Winding core mould of iron core |
| CN109576444A (en) * | 2018-11-19 | 2019-04-05 | 安徽东升精密铸钢件有限公司 | A kind of crawler dozer guide and its production and processing method |
| US11492056B2 (en) * | 2019-01-10 | 2022-11-08 | Caterpillar Inc. | Track link having canted rail surface edges and machine track with same |
| TWI695944B (en) * | 2019-01-16 | 2020-06-11 | 兆強科技股份有限公司 | Track assembly method and molding equipment |
| CN110159622A (en) * | 2019-05-31 | 2019-08-23 | 巨硕精密机械(常熟)有限公司 | Connecting unit of profile material with holes |
| CN110288905B (en) * | 2019-06-28 | 2022-03-08 | 厦门天马微电子有限公司 | Curved surface display device |
| US11858565B2 (en) * | 2019-12-13 | 2024-01-02 | Caterpillar Inc. | Track joint assembly for ground-engaging track having track pin with enlarged center section |
| CN111564927B (en) * | 2020-05-18 | 2022-05-10 | 珠海格力电器股份有限公司 | Hollow shaft sealing ring, hollow shaft, rotor structure, motor and electric automobile |
| CN115929757A (en) * | 2022-12-13 | 2023-04-07 | 西安现代控制技术研究所 | Sealing ring protection structure for radial screw connection |
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| US4083611A (en) * | 1975-01-23 | 1978-04-11 | Fiat-Allis Construction Machinery, Inc. | Master link assembly for crawler tractor track assembly |
| CN1467122A (en) * | 2002-06-26 | 2004-01-14 | 东碧工业株式会社 | Seal for an endless track |
| CN1527775A (en) * | 2000-12-22 | 2004-09-08 | ���ɭ��J�������� | Low ground pressure tire chains for skid-steer loadersand other construction machinery |
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- 2009-03-20 CN CN201010245407.2A patent/CN101947982B/en active Active
- 2009-03-20 CN CN2009101190638A patent/CN101544248B/en not_active Expired - Fee Related
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| US4083611A (en) * | 1975-01-23 | 1978-04-11 | Fiat-Allis Construction Machinery, Inc. | Master link assembly for crawler tractor track assembly |
| CN1527775A (en) * | 2000-12-22 | 2004-09-08 | ���ɭ��J�������� | Low ground pressure tire chains for skid-steer loadersand other construction machinery |
| CN1467122A (en) * | 2002-06-26 | 2004-01-14 | 东碧工业株式会社 | Seal for an endless track |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101947982A (en) | 2011-01-19 |
| CN101544248A (en) | 2009-09-30 |
| CN101544248B (en) | 2011-08-10 |
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