CN200955165Y - Fitting structure of bucket gear and gear seat - Google Patents
Fitting structure of bucket gear and gear seat Download PDFInfo
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- CN200955165Y CN200955165Y CN 200620108109 CN200620108109U CN200955165Y CN 200955165 Y CN200955165 Y CN 200955165Y CN 200620108109 CN200620108109 CN 200620108109 CN 200620108109 U CN200620108109 U CN 200620108109U CN 200955165 Y CN200955165 Y CN 200955165Y
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- toothholder
- bucket tooth
- pin
- head
- teeth
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Abstract
A fitting-in structure of bucket teeth and teeth stand comprises a bucket teeth, a teeth stand and a pin, wherein the teeth stand comprises a teeth stand head in the foreside and a teeth stand connection in the rear side, the teeth stand head in the foreside is connected with the bucket teeth in the front side, the teeth stand is arranged on the board of the loader bucket by the teeth stand connection, the bucket teeth comprises a teeth top part and a bucket teeth inner cavity which contains the teeth stand head, the teeth stand head is inserted and embedded in the bucket teeth inner cavity and by the pin the teeth stand head is connected with the bucket teeth inner cavity. The utility model is characterized in that the teeth stand and the teeth stand head comprise a top & lower curved surface, a top surface, and a recess distributing in bilateral sides, the bucket teeth inner cavity comprises a top & lower curved surface, a bottom surface, and a cam key distributing in bilateral sides, in the state of the teeth stand head embedded in the bucket teeth inner cavity, the top & lower curved surface of the teeth stand head fits close with the top & lower curved surface of the bucket teeth inner cavity, the top surface fits close with the bottom surface, and the recess fits close with the cam key; so the connection of the bucket teeth and the gear stand is more steady.
Description
Technical field
The utility model relates to the fit structure of a kind of bucket tooth and toothholder, is mainly used in the fixing of the bucket tooth on excavator, the loader and toothholder on engineering machinery and the mining machinery.
Background technology
Now the fixedly connected frequent needs of bucket tooth on excavator, the loader and toothholder are used pin and are connected on engineering machinery and the mining machinery, and the fixing pin that is used for bucket tooth and toothholder at present mainly divides lateral pin and perpendicular pin two big classes.
Lateral pin is divided into two classes again substantially: a class is to have a groove to be installed with C type jump ring (Fig. 1) on the pin, the internal diameter of jump ring is slightly larger than the diameter of pin groove, external diameter is slightly larger than the internal diameter of pin-and-hole, pin after the assembling pierces in the pin-and-hole of toothholder, rely on the frictional force of jump ring external diameter and pin-and-hole inwall to block, pin is fixed in the pin-and-hole, and bucket tooth engages by the pin toothholder, sees that the patent No. is that the Chinese patent of 86209610U and the patent No. are 94190327.3 Chinese patent.The jump ring of two class pin (see figure 2)s is different in a class pin, but principle is similar, describes in detail no longer one by one at this.
Perpendicular pin also can roughly be divided into two classes: a class has been that the rubber and the metallic object of elastic reaction separates, both in conjunction with the time by jagged mutually nested, the width of the pin-and-hole when its width should combine with toothholder greater than bucket tooth, the screen resilience that produces by extruding rubber is fixed the position of pin at pin-and-hole like this, thereby bucket tooth is lived in constraint, guarantees the cooperation of bucket tooth and toothholder.Two class pin formations, fixation principle and a class are similar, just rubber and metal lump have been lumped together, and have improved the application life of pin, also convenient for users to use and storage.
Existing pin, though they can both well fix bucket tooth and toothholder, but also there is following shortcoming in they:
1) no matter is lateral pin or perpendicular pin, substantially be to pack into and take out with impacting of iron hammer, all to take off pin at every turn when changing bucket tooth and refill pin, the vibration that causes in the process that impacts, impact, friction have all greatly damaged the performance that pin should have, the damage of this " non-combat casualty formula " has reduced the life-span of pin greatly, each assembling or replacing bucket tooth all must take out pin just can carry out, also be the work that part takes time and effort, particularly be engaged in this work on-site and then more demonstrate its inconvenience;
2) pin is to answer bucket tooth to give birth to cooperating of toothholder, the pin of this structure has determined in use can constantly be subjected to active forces such as shearing, twisting resistance, jump ring and rubber produce fatigue failure soon under this alternating stresses, so the life-span generally is not very long, often will change several pairs or even tens deputy pins in the life cycle of a secondary toothholder, use cost is bigger.
On the other hand, at present the fit system of bucket tooth and toothholder is based on embedded cooperation, and this fit system characteristics are that the inner chamber of bucket tooth is embedded in the head of toothholder, and certain fit clearance is left with convenient for assembly in self surface.Projection along the fitting face centerline direction is isosceles trapezoid or approximate isosceles trapezoid, and the sectional view in cross section is a rectangle, is extended the bucket tooth of a wedge shape by these two graphic features.Under external force, up and down to slide into contact along the upper and lower surface of bucket tooth inner chamber fixing two surfaces for toothholder, power passed to the front end of bucket tooth by contact surface.The cooperating of this form is positive and the bucket tooth inner chamber is positive cooperates by the toothholder head, and lateral pin passes, and axially and vertical direction mobile, bucket tooth bears axial and vertical digging force with the constraint bucket tooth.But the left and right directions of bucket tooth not contact reliably is fixing, double swerve is apparent in view, this makes in mining process, and bucket tooth is reverse, the ability to bear of lateral load reduces, under some situation even lose this ability to bear, produce accidents such as bucket tooth fracture, gross distortion inefficacy, pin fracture, make excacation be forced to stop and resulting in greater loss.The left and right sides of this cooperation simultaneously be because of providing favourable support, and it is excessive and cause both sides sidewall crackle also can to produce two side draws, and then the generation fracture failure.
Comprehensively above-mentioned, bucket tooth with need do further improvement design being connected of toothholder.
Summary of the invention
Primary technical problem to be solved in the utility model provides the fit structure of a kind of bucket tooth and toothholder, it provides a kind of stable fit system, can effectively resist load axial, vertical, reverse, side direction, be hit, can providing good supporting when shaking, rational in infrastructure, simple and practical.
Another technical problem to be solved in the utility model provides the fit structure of a kind of bucket tooth and toothholder, it can be at an easy rate bucket tooth with toothholder is fixed together and can change the work of bucket tooth easily, improve the efficient of bucket tooth handling operation, reduce operator's labour intensity; And reduction use cost.
The technical scheme that the above-mentioned primary technical problem that solves the utility model adopts is: the fit structure of a kind of bucket tooth and toothholder, it includes bucket tooth, toothholder and pin, wherein toothholder includes the anterior toothholder head and the toothholder connecting portion at rear portion, anterior toothholder head connects the bucket tooth of front end, the toothholder connecting portion at rear portion is fixed in toothholder on the strickle of scraper bowl, bucket tooth is made up of crown portion and bucket tooth cavity, the inner chamber of bucket tooth cavity holds the toothholder head, make the toothholder head insert the embedding that cooperatively interacts in the bucket tooth inner chamber, and couple together by pin, it is characterized in that described toothholder, the toothholder head includes lower surface camber, the top face, with the groove that is distributed in the position, both sides, the bucket tooth inner chamber includes lower surface camber, the bottom surface, with the protruding key that is distributed in the position, both sides, embed under the bucket tooth inner chamber state at the toothholder head, this moment, the last lower surface camber of toothholder head cooperated identically with the last lower surface camber of bucket tooth inner chamber, and the top face cooperates identical with the bottom surface, and groove cooperates identical with protruding key.
As improvement, the last lower surface camber of described toothholder head adopts local elliptical line or hyperbola or parabola to stretch along axis and forms, broaden gradually in the time of stretching, form 25 °～35 ° angle, make bucket tooth like this and stablize firmly embedded the connection more of toothholder with axis.
As improvement, the groove of described toothholder head adopts C shape groove, and broadens gradually when axis direction extends, and forms 0～5 ° of angle with axis, makes bucket tooth like this and stablizes firmly embedded the connection more of toothholder.
As improvement, described curved surface fit clearance and groove and protruding key fit clearance are controlled in 5 millimeters, make connection more firm.
The technical scheme that another technical problem that solves the utility model adopts is: on above-mentioned basis, described toothholder pinhole in front is equipped with the elasticity pin, accordingly, on the bucket tooth internal chamber wall or its extending part mold the pin lockhole, elasticity pin and pin lockhole are connected, bucket tooth and toothholder are releasably installed are coupled together.
Useful is, resilient key minor structure of the present invention is that pinhole one end diameter is little in front for described toothholder, and other end diameter is big, accordingly, pin is that outer end one end diameter is little, and middle rear end diameter is big, is positioned on the little pinhole of diameter, pin terminal be fixed on the locational spring base of the pinhole other end and be supported with spring, make pin install easily and use like this; Or, toothholder pinhole two ends diameter in front is big, and mid diameter is little, and accordingly, pin is that outer end one end diameter is big, the rear end diameter is little, be positioned on the little pinhole of diameter, pin terminal be fixed on the locational spring base of the pinhole other end and be connected with extension spring, and, at the spring base position, on the bucket tooth internal chamber wall or its extending part form and cooperate the pickup hole.
As improvement, described pin end and spring base inner end all form the cylinder of diameter less than spring, and cylinder is inserted in the spring the inside fixes spring, makes pin end and spring base that spring is played necessary positioning action like this, prevent its drift, it is more reliable and more stable to work together.
As improvement, described pin outer end has spigot surface, and spigot surface adopts in addition fillet and form the spigot surface that spigot surface or irregular curve form of inclined-plane, arc surface, section, makes pin under the compressing of bucket tooth internal chamber wall, flexible, more convenient to use easily.
As improvement, comprise a groove on the described pin outer face, groove is " one " word groove, " ten " word groove, inner screw channel or irregular groove, be convenient to operating personnel and rotate groove by instrument, make spigot surface and disassembly direction opposite, press down and cause spigot surface to be lower than the bucket tooth fitting surface, the pulling bucket tooth can unload bucket tooth.
As improvement, described toothholder head is forming the plane around the pinhole position, and, form the involutory notch of circular arc that cooperates with bucket tooth internal chamber wall extending part at the toothholder head and the position, boundary of toothholder connecting portion, make bucket tooth and stablize firmly embedded the connection more of toothholder.
As preferably, described elasticity pin is upper surface or the soffit that is distributed in the toothholder head, makes connection more stable.
Compared with prior art, advantage of the present utility model is: adopt groove to be connected with protruding key matching embedded type, a kind of stable fit system is provided, can effectively resist axially, vertically, oppositely, the load of side direction, be hit, can provide good supporting during vibrations, on the one hand material is fully used, the weightlessness that has increased bucket tooth has greatly also increased the life-span of bucket tooth on the other hand than (weight of wearing and tearing and the ratio of overall weight), has reduced users' cost of production and has improved work efficiency, cooperate closely, economical with materials is used reliable, cheap, rational in infrastructure, simple and practical; Adopt elasticity pin syndeton, can be easy to bucket tooth and toothholder is fixed together and can change the work of bucket tooth easily, improve the efficient of bucket tooth handling operation, reduction operator's labour intensity; This pin system possesses the same long service life with toothholder, need not to change in whole toothholder life cycle, to reduce use cost, be connected and fixed firmly, the bucket tooth that is fixed is easy to loading and unloading, safety simple to operate, use is reliable, and is simple and reliable for structure, repeatedly long service life.
Description of drawings
The class lateral pin assembly drawing that Fig. 1 is traditional;
The two class lateral pin assembly drawings that Fig. 2 is traditional;
Fig. 3 is the structure chart of elasticity pin in toothholder;
Fig. 4 is a resilient key minor structure pie graph;
Fig. 5 is an elasticity pin stereogram;
Fig. 6 is bucket tooth and the toothholder stereogram (under the half-sectioned attitude) that is connected;
Fig. 7 is the stereogram of toothholder;
Fig. 8 is the sectional view of toothholder;
Fig. 9 is the stereogram of bucket tooth;
Figure 10 is the sectional view of bucket tooth;
Figure 11 is the cross-sectional view of bucket tooth;
Figure 12 is bucket tooth and the toothholder cross-sectional view that is connected;
Figure 13 is elasticity pin another structure chart in toothholder.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Examples of implementation 1
As Fig. 3-12 signal, the fit structure of a kind of bucket tooth and toothholder, it includes bucket tooth 1, toothholder 2 and pin 12, wherein the toothholder 2 toothholder connecting portion 8 that includes anterior toothholder head 9 and rear portion leaves shelves as toothholder, anterior toothholder head 9 is used to connect the bucket tooth 1 of front end, the toothholder connecting portion 8 at rear portion is used for toothholder 2 is fixed in the strickle of engineering truck scraper bowl, see Fig. 3, bucket tooth 1 is made up of crown portion 4 and bucket tooth cavity 5, bucket tooth cavity 5 comprises bucket tooth inner chamber 6 and bucket tooth exocoel 7, see Fig. 9,10, bucket tooth inner chamber 6 holds toothholder head 9, make toothholder head 9 insert the embedding that cooperatively interacts in the bucket tooth inner chamber 6, see Fig. 1,12, it is invented crucial part and is that 9 li pinholes 11 of described toothholder head are equipped with elasticity pin 3, accordingly, on bucket tooth 1 internal chamber wall or its extending part 21 mold pin lockhole 10, elasticity pin 3 and pin lockhole 10 are connected, bucket tooth 1 and toothholder 2 releasably installed coupled together.Such elasticity pin 3 can be distributed in the upper surface or the soffit of toothholder head 9.
This elasticity pin 3 comprises that mainly four parts constitute: the pinhole 11 of pin 12, spring 13, spring base 14, toothholder, see Fig. 3,4.At first pin 12 is packed the other end internal diameter of pinhole 11 into than macropore 11a, because of the cylinder 12a diameter of pin 12 1 ends a stomidium 11b diameter less than this pinhole 11, in the pin 12 cylinder diameter of rear end less than the other end internal diameter of pinhole than macropore 11a, and greater than an end internal diameter of pinhole than aperture 11b, like this, the cylinder 12a of pin 12 1 ends penetrates pinhole, in the cylinder of the rear end end internal diameter that just is stuck in pinhole than aperture 11b and other end internal diameter intersection than macropore 11a, spring 13 is packed into subsequently, spring 13 is supported between pin 12 ends and the spring base 14, pin 12 ends and spring base 14 inner ends all form the cylinder 15 of diameter less than spring 13,16, cylinder 15,16 are inserted in spring 13 the insides fixes spring 13, prevent that spring 13 from drifts taking place, make work together more reliable and more stable.The cylinder surface of pre-compressed spring seat 14 is fixed during to bottom surface and the tangent position of toothholder head 9 curved surfaces, and fixed form can adopt electric welding, metal with glue etc.This moment spring 13 deposit certain precompression, prioritization scheme are arranged is that 5～15% of the compressible amount of pretensioned spring is advisable.Fig. 1 has reflected the position of the pin that assembles.Pin 12 cylinder extension upper surfaces can be depressed into toothholder head 9 planes and flush this moment.Toothholder head 9 is forming plane 20 around the pinhole position, and the position, boundary of opening shelves as toothholder at toothholder head 9 and toothholder connecting portion 8 forms the involutory notch 19 of the circular arc that cooperates with bucket tooth internal chamber wall extending part 21, sees Fig. 7.
When assembling bucket tooth 1, spigot surface 17 is in contrast to assembly direction, press groove 18 by an instrument (as screwdriver), the cylinder of pin 12 1 ends is moved down, back off tool when being lower than the bucket tooth fitting surface Deng spigot surface 17, continue to be pushed into " clatter " one, the lockhole of bucket tooth 1 promptly may be locked on the pin 12 of toothholder 2.The setting of spigot surface 17 is convenient for assembly, and the shape of spigot surface 17 can be a various ways, can be inclined-plane, also can be arc surface, also can be at this section fillet and form spigot surface in addition, and what this patent provided is a prioritization scheme.The setting of groove 18 is that assembling is to exert pressure for convenience too, and groove 18 can be multiple shape, can be " one " word groove, it can be " ten " word groove, also can be irregular grooves such as inner screw channel, what this patent provided be a prioritization scheme equally, sees Fig. 5.
Needed dismounting bucket tooth 1, strike loose bucket tooth 1 earlier---fill up bucket tooth 1 and toothholder 2 gaps because of foreign material such as in the bucket tooth course of work, having a lot of earth, so that bucket tooth is as being bonded on the toothholder, by instrument rotation groove 18, make spigot surface 17 and disassembly direction opposite, press down and cause spigot surface 17 to be lower than bucket tooth 1 fitting surface, pulling bucket tooth 1 can unload bucket tooth 1.
Have fixation more than the utility model, the bucket tooth that is fixed is easy to loading and unloading, simple to operate safe, use reliable, simple and reliable for structure, advantage such as long service life repeatedly.
As Fig. 7-11 signal, described toothholder 2, the toothholder head includes lower surface camber 22,23, top face 24, with the groove 26 that is distributed in the position, both sides, bucket tooth inner chamber 6 includes lower surface camber 28,29, bottom surface 30, with the protruding key 27 that is distributed in the position, both sides, embed under bucket tooth inner chamber 6 states at toothholder head 9, this moment toothholder head 9 last lower surface camber 22,23 with the last lower surface camber 28 of bucket tooth inner chamber 6,29 cooperations coincide, top face 24 cooperates identical with bottom surface 30, groove 26 cooperates identical with protruding key 27, curved surface fit clearance and groove and protruding key fit clearance are controlled in 5 millimeters.
Last lower surface camber 22,23 is distributed in toothholder head 9 upper and lower surfaces, and symmetry has certain angle and curvature, last lower surface camber 22,23 can adopt local elliptical line or hyperbola or parabola to stretch along axis and form, broaden gradually in the time of stretching, the angle of two sweep surfaces and axis is between 25 °～35 °;
The left and right sides of left and right sides groove 26 symmetrical distribution toothholder heads 9 has certain degree of depth and curvature, and the groove 26 of toothholder head adopts C shape groove substantially, and broadens gradually when axis direction extends, and forms 0～5 ° of angle with axis.Top face 24 is a surface modeling, on a rectangular-shaped deep hole 25 is arranged.
The curved surface 28,29 of bucket tooth 1 is in bucket tooth inner chamber 6 upper and lower surface positions, and curvature is slightly larger than the curvature of tooth headstock 2 sweep surfaces, guarantee to leave when both assemble suitable gap with convenient for assembly, last lower surface camber 28,29 also can adopt local elliptical line or hyperbola or parabola to stretch along axis and form, broaden gradually in the time of stretching, the angle that makes two sweep surfaces and axis is between 25 °～35 °; The protruding key 27 of bucket tooth 1 is symmetrically distributed on the internal chamber wall of both sides, has certain height and curvature, and this highly is slightly less than groove 26, and the curvature of protruding key is slightly larger than groove simultaneously.
Like this, make the fit clearance size basically identical of fit clearance between the last lower surface camber 28,29 of the last lower surface camber 22,23 of toothholder head 2 and bucket tooth inner chamber and protruding key 27 and groove 26, be controlled in 5 millimeters, work can closely contact simultaneously, coincide.Toothholder top face 24 closely contacts with bucket tooth bottom surface 30, coincide simultaneously.
The groove 26 of toothholder head 2 can be embedded in 6 two protruding keys 27 of bucket tooth inner chamber, and its band top face 24 nestles up on the bottom surface, top 30 of bucket tooth inner chamber 6 simultaneously, and the last lower surface camber 22,23 of the last lower surface camber 28,29 of bucket tooth inner chamber 6 and toothholder head 9 is near coincideing.Can intuitively illustrate more that at stressing conditions shown in the reference arrow this fit system passes through the recess-mounted of toothholder head in two protruding keys of bucket tooth inner chamber, it is loosening about in the bucket tooth inner chamber not only to have limited toothholder head that conventional fit system occurs, especially on lower surface camber on the bucket tooth inner chamber and protruding key, producing pressure under the effect of external force, lower surface camber and groove produce pulling force on the toothholder head, the action effect of this power is just four contact surfaces tightening together tightly, and improve the stability of overall co-ordination, being provided with of groove saved material simultaneously; The contact area of lower surface camber on the last lower surface camber of increase bucket tooth inner chamber and the toothholder head, under the certain situation of the power that passes over by the toothholder head, it is gradually little on the contrary that contact area increases the power that passes on the bucket tooth, the working strength of corresponding bucket tooth exocoel and its teeth obviously reduces, therefore can the attenuation of bucket tooth exocoel some or add some grooves, strengthen chamfering or the like (satisfying under the situation of intensity), moreover a material of saving is used for the thickening of the comparatively serious part of teeth wearing and tearing, realizing that global facility satisfies under the situation of intensity allows material obtain distributing rationally of science, on the one hand material is fully used, the weightlessness that has increased bucket tooth greatly is than (weight of wearing and tearing and the ratio of overall weight), also increased the life-span of bucket tooth on the other hand, reduced users' cost of production and improved work efficiency; The top face 24 of toothholder head 9 is provided with a rectangular opening and has certain degree of depth, coming directly towards bottom surface, top 30 in face 24 and the bucket tooth inner chamber first contacts and power is well passed to teeth, the effect that obtains finer and close tissue and alleviate toothholder weight when rectangular opening plays casting on the face of top simultaneously, thus make properties of product benefit better and with low cost.
Examples of implementation 2
As schematically shown in Figure 13, the syndeton of a kind of bucket tooth and toothholder, it includes bucket tooth 1, toothholder 2 and pin 31, wherein toothholder 2 includes anterior toothholder head and shelves left by the toothholder connecting portion such as the toothholder at rear portion, anterior toothholder head is used to connect the bucket tooth 1 of front end, the toothholder connecting portion at rear portion is used for toothholder 2 is fixed in the strickle of engineering truck scraper bowl, bucket tooth 1 is made up of crown portion and bucket tooth cavity, the bucket tooth cavity comprises bucket tooth exocoel and bucket tooth inner chamber, the bucket tooth inner chamber holds the toothholder head, make the toothholder head insert the embedding that cooperatively interacts in the bucket tooth inner chamber, its invent crucial part be described toothholder in front pinhole 34 elasticity pin 3 is installed, accordingly, on bucket tooth 1 internal chamber wall or its extending part mold the pin lockhole, elasticity pin 3 and pin lockhole are connected, bucket tooth 1 and toothholder 2 are releasably installed are coupled together.
The resilient key minor structure is that 9 li pinholes of toothholder head, 34 two ends diameters are big, and mid diameter is little, accordingly, pin 31 is that outer end one end diameter is big, and the rear end diameter is little, is positioned on the little pinhole of diameter, pin 31 terminal be fixed on the locational spring base 32 of the pinhole other end and be connected with extension spring 33, and, at the spring base position, on the bucket tooth internal chamber wall or its extending part form and cooperate pickup hole 35.Other structure is similar the same with examples of implementation 1.
Its use is such, the toothholder head of toothholder is embedded in the bucket tooth inner chamber of bucket tooth, and pin 31 is inserted on the bucket tooth 1 internal chamber wall extending part in the pinhole 34 on the pin lockhole and toothholder head, and pin 34 end extension springs 33, the other end of extension spring firmly elongates, this end can be hooked on the spring base 32, and spring base 32 is by the pickup hole 35 of bucket tooth internal chamber wall extending part, be embedded in the pinhole on the tooth headstock, bucket tooth 1 and toothholder 2 installations are coupled together, in the time of will dismantling being connected between bucket tooth 1 and the toothholder 2 on the contrary, with instrument by pickup hole 35, spring base 32 is pulled out from pinhole 34, and finally take off from extension spring 33 1 ends, then, can be with pin 31 and extension spring 33 from the other end of pinhole 34 by taking out the pin lockhole on the bucket tooth 1 internal chamber wall extending part, just bucket tooth 1 and toothholder 2 can be taken apart.
Advantages such as that the utility model said structure has is simple to operate, cooperate closely, economical with materials, use are reliable, cheap.
The utility model can have various deformation not only for above-mentioned embodiment in this manual scope of disclosure.All adopt the equivalent technologies means to replace the technical scheme that realizes and all are regarded as in the protection domain of the present utility model.
Claims (13)
1. the fit structure of bucket tooth and toothholder, it includes bucket tooth, toothholder and pin, wherein toothholder includes the anterior toothholder head and the toothholder connecting portion at rear portion, anterior toothholder head connects the bucket tooth of front end, the toothholder connecting portion at rear portion is fixed in toothholder on the strickle of scraper bowl, bucket tooth is made up of crown portion and bucket tooth cavity, the inner chamber of bucket tooth cavity holds the toothholder head, make the toothholder head insert the embedding that cooperatively interacts in the bucket tooth inner chamber, and couple together by pin, it is characterized in that described toothholder, the toothholder head includes lower surface camber, the top face, with the groove that is distributed in the position, both sides, the bucket tooth inner chamber includes lower surface camber, the bottom surface, with the protruding key that is distributed in the position, both sides, embed under the bucket tooth inner chamber state at the toothholder head, this moment, the last lower surface camber of toothholder head cooperated identically with the last lower surface camber of bucket tooth inner chamber, and the top face cooperates identical with the bottom surface, and groove cooperates identical with protruding key.
2. fit structure according to claim 1 is characterized in that the last lower surface camber of described toothholder head adopts local elliptical line or hyperbola or parabola to form along the axis stretching.
3. fit structure according to claim 2, the last lower surface camber that it is characterized in that described toothholder head broadens when stretching gradually, forms 25 °～35 ° angle with axis.
4. fit structure according to claim 3 is characterized in that the groove of described toothholder head adopts C shape groove.
5. syndeton according to claim 4 is characterized in that the groove of described toothholder head broadens gradually when axis direction extends, form 0～5 ° of angle with axis.
6. fit structure according to claim 5 is characterized in that described curved surface fit clearance and groove and protruding key fit clearance are controlled in 5 millimeters.
7. according to any described fit structure of claim of claim 1 to 6, it is characterized in that described toothholder in front pinhole the elasticity pin is installed, accordingly, on the bucket tooth internal chamber wall or its extending part mold the pin lockhole, elasticity pin and pin lockhole are connected, bucket tooth and toothholder are releasably installed are coupled together.
8. fit structure according to claim 7, it is characterized in that described resilient key minor structure is that pinhole one end diameter is little in front for toothholder, and other end diameter is big, accordingly, pin is that outer end one end diameter is little, in the rear end diameter big, be positioned on the little pinhole of diameter, pin terminal be fixed on the locational spring base of the pinhole other end and be supported with spring; Or, toothholder pinhole two ends diameter in front is big, and mid diameter is little, and accordingly, pin is that outer end one end diameter is big, the rear end diameter is little, be positioned on the little pinhole of diameter, pin terminal be fixed on the locational spring base of the pinhole other end and be connected with extension spring, and, at the spring base position, on the bucket tooth internal chamber wall or its extending part form and cooperate the pickup hole.
9. fit structure according to claim 8 is characterized in that described pin end and spring base inner end all form the cylinder of diameter less than spring, and cylinder is inserted in the spring the inside fixes spring.
10. fit structure according to claim 9 is characterized in that described pin outer end has spigot surface, and spigot surface adopts in addition fillet and form the spigot surface that spigot surface or irregular curve form of inclined-plane, arc surface, section.
11. fit structure according to claim 10 is characterized in that comprising on the described pin outer face groove, groove is " one " word groove, " ten " word groove, inner screw channel or irregular groove.
12. fit structure according to claim 11, it is characterized in that described toothholder head is forming the plane around the pinhole position, and, form the involutory notch of circular arc that cooperates with bucket tooth internal chamber wall extending part at the toothholder head and the position, boundary of toothholder connecting portion.
13. fit structure according to claim 12 is characterized in that described elasticity pin is upper surface or the soffit that is distributed in the toothholder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108109 CN200955165Y (en) | 2006-09-26 | 2006-09-26 | Fitting structure of bucket gear and gear seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108109 CN200955165Y (en) | 2006-09-26 | 2006-09-26 | Fitting structure of bucket gear and gear seat |
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| CN200955165Y true CN200955165Y (en) | 2007-10-03 |
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| CN 200620108109 Expired - Lifetime CN200955165Y (en) | 2006-09-26 | 2006-09-26 | Fitting structure of bucket gear and gear seat |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174184A (en) * | 2011-12-20 | 2013-06-26 | 斗山工程机械（中国）有限公司 | Excavator and bucket tooth connection structure thereof |
| CN103189579A (en) * | 2011-05-09 | 2013-07-03 | 株式会社小松制作所 | Bucket tooth for construction vehicle |
| WO2013104268A2 (en) * | 2012-01-13 | 2013-07-18 | Liu Suhua | Separable rake teeth |
| CN103842595A (en) * | 2011-09-30 | 2014-06-04 | 卡特彼勒公司 | Ripper tip for a ripper shank assembly |
| CN105773584A (en) * | 2016-03-05 | 2016-07-20 | 温州职业技术学院 | Industrial robot-assisted material handling system |
| CN106795708A (en) * | 2014-04-28 | 2017-05-31 | 成矿研究科技有限公司 | Tooth and the connector for the tooth to be attached to Work machine |
| CN109339147A (en) * | 2018-11-23 | 2019-02-15 | 中交天津航道局有限公司 | A kind of tooth and toothholder attachment device |
| CN115369947A (en) * | 2022-08-02 | 2022-11-22 | 太原重工股份有限公司 | Rotary locking mechanism of combined bucket tooth of excavating equipment |
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2006
- 2006-09-26 CN CN 200620108109 patent/CN200955165Y/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8832975B2 (en) | 2011-05-09 | 2014-09-16 | Komatsu Ltd. | Bucket tooth for construction vehicle |
| CN103189579A (en) * | 2011-05-09 | 2013-07-03 | 株式会社小松制作所 | Bucket tooth for construction vehicle |
| CN103189579B (en) * | 2011-05-09 | 2014-12-17 | 株式会社小松制作所 | Bucket tooth for construction vehicle |
| CN103842595B (en) * | 2011-09-30 | 2017-05-17 | 卡特彼勒公司 | Ripper tip for a ripper shank assembly |
| CN103842595A (en) * | 2011-09-30 | 2014-06-04 | 卡特彼勒公司 | Ripper tip for a ripper shank assembly |
| CN103174184B (en) * | 2011-12-20 | 2015-06-03 | 斗山工程机械（中国）有限公司 | Excavator and bucket tooth connection structure thereof |
| CN103174184A (en) * | 2011-12-20 | 2013-06-26 | 斗山工程机械（中国）有限公司 | Excavator and bucket tooth connection structure thereof |
| WO2013104268A3 (en) * | 2012-01-13 | 2013-08-29 | Liu Suhua | Separable rake teeth |
| WO2013104268A2 (en) * | 2012-01-13 | 2013-07-18 | Liu Suhua | Separable rake teeth |
| CN106795708A (en) * | 2014-04-28 | 2017-05-31 | 成矿研究科技有限公司 | Tooth and the connector for the tooth to be attached to Work machine |
| CN105773584A (en) * | 2016-03-05 | 2016-07-20 | 温州职业技术学院 | Industrial robot-assisted material handling system |
| CN105773584B (en) * | 2016-03-05 | 2017-12-08 | 温州职业技术学院 | Industrial robot material carrying machine system |
| CN109339147A (en) * | 2018-11-23 | 2019-02-15 | 中交天津航道局有限公司 | A kind of tooth and toothholder attachment device |
| CN115369947A (en) * | 2022-08-02 | 2022-11-22 | 太原重工股份有限公司 | Rotary locking mechanism of combined bucket tooth of excavating equipment |
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