Summary of the invention
The purpose of the present invention includes providing a kind of bearing pin to connect assembly, and this bearing pin connecting component structure is simple, takies axially
Space is short, and the reliability of connection is high, and processing and fabricating is simple, thus is favorably improved the performance of the engineering machinery using it.This pin
Axle connects assembly and includes axis pin base and the bearing pin matched.
Second object of the present invention is to provide a kind of manufacture method connecting assembly based on above-mentioned bearing pin.
Third object of the present invention is to provide a kind of engineering machinery applying above-mentioned bearing pin to connect assembly.
For realizing above-mentioned first purpose, the invention provides a kind of bearing pin and connect assembly, including axis pin base with adapt
Bearing pin, wherein, described bearing pin includes that cylinder, described axis pin base include bearing pin pedestal, and this bearing pin pedestal is provided with for pacifying
Fill described cylindrical pin shaft hole.
Preferably, one end of described pin shaft hole is provided with thread segment, and the other end of described thread segment is provided with circular hole;Described bearing pin
It is provided with conical ring hole one between hole and described thread segment, between described thread segment and described circular hole, is provided with conical ring hole two.
Preferably, the diameter of described thread segment is more than the diameter of described pin shaft hole, and the diameter of described thread segment is less than described
The aperture of circular hole;The path of the screw thread on described thread segment is more than the diameter of described pin shaft hole.Preferably, described conical ring hole one
Small bore end is positioned at the side of described pin shaft hole;The small bore end in described conical ring hole two is positioned at the side of described pin shaft hole.
Preferably, the big footpath of the screw thread on described thread segment is less than the aperture of described circular hole.Preferably, on described thread segment
Screw thread be cylindrical thread.
Preferably, described cylindrical one end is provided with thread segment two, and the other end of described thread segment two is provided with bearing pin head, institute
State and between cylinder and described thread segment two, be provided with changeover portion one, between described thread segment two and described bearing pin head, be provided with changeover portion
Two.Preferably, described thread segment and described thread segment two are the screw thread being mutually paired, and described cylinder coordinates with described circular hole.
Preferably, the diameter of the big nose end in described conical ring hole one is identical with the size of the path of the screw thread of described thread segment.
Preferably, the diameter of the small bore end in described conical ring hole one is identical with the size of described pin shaft hole.
Preferably, the diameter of the small bore end in described conical ring hole two is identical with the size in the big footpath of described thread segment.
Preferably, the diameter of the big nose end in described conical ring hole two is identical with the size of the diameter of described circular hole.
Preferably, described axis pin base has the installing hole for installing corresponding part or groove.Preferably, described pin shaft hole
It is distributed in the both sides of described installing hole or groove.
Preferably, the screw thread on described thread segment uses triangle thread or rectangular thread, trapezoidal thread, zigzag spiral shell
Stricture of vagina, it would however also be possible to employ other special shape screw thread.
Preferably, the diameter of described thread segment two is more than described cylindrical diameter, and the spiral shell on described thread segment two
The path of stricture of vagina is more than or equal to described cylindrical diameter.
Preferably, the diameter of described thread segment two is more than the external diameter of described bearing pin head, and the spiral shell on described thread segment two
The path of stricture of vagina is more than or equal to the maximum outside diameter of the appearance profile of described bearing pin head.
Preferably, described bearing pin head is square spigot.
Preferably, described square spigot is turret head.Preferably, its cross section is regular hexagon, and intersection, each limit is all provided with
Chamfering or fillet are put.
Preferably, described changeover portion one uses the form of arc transition to connect described cylinder and described thread segment two.
Preferably, described changeover portion two uses the form of arc transition to connect described bearing pin head and described thread segment two, and
And the path of described changeover portion two is more than or equal to the maximum outside diameter of the appearance profile of described bearing pin head, and described changeover portion
Two are again with the transient mode of rounding at the non-maximum outside diameter of the appearance profile of described bearing pin head.
Preferably, the screw thread on described thread segment two uses triangle thread or rectangular thread, trapezoidal thread, zigzag
Screw thread, it would however also be possible to employ other special shape screw thread.
For realizing above-mentioned second purpose, the present invention provides a kind of manufacture method connecting assembly based on above-mentioned bearing pin, bag
Including the manufacture method of bearing pin and the manufacture method of axis pin base, described bearing pin is the bearing pin described in any of the above-described technical scheme, institute
Stating axis pin base is the axis pin base in any of the above-described technical scheme.
Wherein, the manufacture method of bearing pin, comprise the following steps:
Step 11, uses round steel or bar to carry out the blanking of bearing pin;
Step 12, carries out the initial processing of appearance profile by lower good material, including the first car of the appearance profile to each section of bearing pin, and
Leave suitable surplus;
Step 13, carries out modifier treatment to the part through initial processing;
Step 14, processes described bearing pin head, and each side including milling square spigot and the intersection to adjacent side are carried out
Chamfering or rounding, and use milling cutter vertical with bearing pin but disjoint mode is directly to reach described changeover portion two with described
The purpose of the transient mode of rounding it is again with at the non-maximum outside diameter of the appearance profile of bearing pin head;
Step 15, processes described thread segment, described cylinder and described changeover portion one and described changeover portion two, including described in car
Changeover portion two and cutting thread described in changeover portion one, car described in cylinder, car;
Wherein the processing sequence of changeover portion described in changeover portion one, car described in cylinder, car described in car can be fitted as required
Work as adjustment;
Step 16, carries out chamfering to the end of described cylindrical disconnected section or rounding processes;
Step 17, carries out polish to described cylindrical cylindrical, to ensure that its surface roughness reaches to use requirement.
In a step 11, the material manufacturing multiple bearing pins can be connected together, again will after experience step 12 to step 17
Each is nearly completed bearing pin and separates, thus realizes once can processing multiple bearing pin, improves efficiency.
Additionally, the manufacture method of another bearing pin, comprise the following steps:
Step 11, uses round steel or bar to carry out the blanking of bearing pin;
Step 12, carries out the initial processing of appearance profile by lower good material, including the first car of the appearance profile to each section of bearing pin, and
Leave suitable surplus;
Step 13, carries out modifier treatment to the part through initial processing;
Step 14, processes described bearing pin head, and each side including milling square spigot and the intersection to adjacent side are carried out
Chamfering or rounding;
Step 15, processes described thread segment, described cylinder and described changeover portion one and described changeover portion two;
Step 16, carries out chamfering to the end of described cylindrical disconnected section or rounding processes;
Step 17, carries out polish to described cylindrical cylindrical, to ensure that its surface roughness reaches to use requirement.
In a step 11, the material manufacturing multiple bearing pins can be connected together, again will after experience step 12 to step 17
Each is nearly completed bearing pin and separates, thus realizes once can processing multiple bearing pin, improves efficiency.
It addition, the manufacture method of another bearing pin, comprise the following steps:
Step 11, blanking;
Step 12, carries out the initial processing of appearance profile by lower good material;
Step 13, carries out modifier treatment to the part through initial processing;
Step 14, processes described bearing pin head;
Step 15, processes described thread segment, described cylinder and described changeover portion one and described changeover portion two;
Step 16, carries out chamfering to the end of described cylindrical disconnected section or rounding processes;
Step 17, carries out polish to described cylindrical cylindrical.
In a step 11, the material manufacturing multiple bearing pins can be connected together, again will after experience step 12 to step 17
Each is nearly completed bearing pin and separates, thus realizes once can processing multiple bearing pin, improves efficiency.
Wherein, the manufacture method of a kind of axis pin base, comprise the following steps:
Step 21, axis pin base blank is processed, if having the needs of high intensity to axis pin base, then includes carrying out the most quenched
Process;Without high requirement, the most do not carry out modifier treatment;
Step 22, boring, bore described pin shaft hole and comprise the first time bottom outlet at described thread segment and described circular hole, and right
The chamfering deburring of each exposed section, hole;
Step 23, reaming, the bottom outlet of thread segment described in counterboring axially counterboring put in place;
Step 24, again reaming, circular hole described in counterboring axially counterboring put in place;
Step 25, fraising, including articulation pin shaft hole and circular hole, circular hole articulation axially puts in place but can not damage described conical ring hole two,
And the technique guard space of reserved about 0.5mm between maximum distance and the conical ring hole two that circular hole is when articulation;
Step 26, tapping, carry out screw thread process including to thread segment;
Step 27, is carried out each hole and thread segment and does antirust treatment.
Additionally, the manufacture method of another axis pin base, comprise the following steps:
Step 21, axis pin base blank is processed, if having the needs of high intensity to axis pin base, then includes carrying out the most quenched
Process;Without high requirement, the most do not carry out modifier treatment;
Step 22, boring, bore described pin shaft hole and comprise the first time bottom outlet at described thread segment and described circular hole;
Step 23, reaming, the bottom outlet of thread segment described in counterboring axially counterboring put in place;
Step 24, again reaming, circular hole described in counterboring axially counterboring put in place;
Step 25, fraising, including articulation pin shaft hole and circular hole;
Step 26, tapping, carry out screw thread process including to thread segment;
Step 27, is carried out each hole and thread segment and does antirust treatment.
Additionally, the manufacture method of another axis pin base, comprise the following steps:
Step 21, axis pin base blank is processed;
Step 22, boring, bore described pin shaft hole and comprise the first time bottom outlet at described thread segment and described circular hole;
Step 23, reaming, the bottom outlet of thread segment described in counterboring axially counterboring put in place;
Step 24, again reaming, circular hole described in counterboring axially counterboring put in place;
Step 25, fraising, including articulation pin shaft hole and circular hole;
Step 26, tapping, carry out screw thread process including to thread segment;
Step 27, is carried out each hole and thread segment.
It addition, additionally provide the manufacture method of a kind of axis pin base, described axis pin base includes bearing pin pedestal, on this bearing pin pedestal
It is provided with the pin shaft hole for installing the bearing pin adapted;One end of described pin shaft hole is provided with thread segment, another of described thread segment
End is provided with circular hole;It is provided with conical ring hole one between described pin shaft hole and described thread segment, sets between described thread segment and described circular hole
Conical ring hole two, described manufacture method is had to comprise the following steps:
Step 1, axis pin base blank is processed;
Step 2, boring, bore described pin shaft hole and comprise the first time bottom outlet at described thread segment and described circular hole;
Step 3, reaming, the bottom outlet of thread segment described in counterboring axially counterboring put in place;
Step 4, again reaming, circular hole described in counterboring axially counterboring put in place;
Step 5, fraising, including articulation pin shaft hole and circular hole;
Step 6, tapping, carry out screw thread process including to thread segment;
Step 7, is carried out each hole and thread segment.
Preferably, the path of the screw thread on described thread segment is more than the diameter of described pin shaft hole.Preferably, described thread segment
On the big footpath of screw thread less than the aperture of described circular hole.
Preferably, the screw thread on described thread segment uses triangle thread or rectangular thread, trapezoidal thread, zigzag spiral shell
Stricture of vagina.Preferably, the screw thread on described thread segment is cylindrical thread.
Preferably, the diameter of the big nose end in described conical ring hole one is identical with the size of the path of the screw thread of described thread segment.
Preferably, the diameter of the small bore end in described conical ring hole one is identical with the size of described pin shaft hole.Preferably, described conical ring hole two
The diameter of small bore end is identical with the size in the big footpath of described thread segment.Preferably, the diameter of the big nose end in described conical ring hole two with
The size of the diameter of described circular hole is identical.
Preferably, described axis pin base has the installing hole for installing corresponding part or groove.Preferably, described pin shaft hole
It is distributed in the both sides of described installing hole or groove.
Wherein, in step 21 or step 1, the blank course of processing of axis pin base can complete, herein with reference to prior art
No longer it is described in detail.
The 3rd purpose of the present invention, for providing a kind of engineering machinery, connects assembly including bearing pin, and described bearing pin is connected as
State the bearing pin described in arbitrary technical scheme and connect assembly.
Compared with prior art, the present invention provides bearing pin to connect assembly, and including bearing pin pedestal, described bearing pin pedestal is provided with
For installing the pin shaft hole of the bearing pin adapted, being provided with bearing pin in described pin shaft hole, described bearing pin includes cylinder, described pin
One end of axis hole is provided with thread segment, and the other end of described thread segment is provided with circular hole, sets between described pin shaft hole and described thread segment
There is conical ring hole one, between described thread segment and described circular hole, be provided with conical ring hole two;Described cylindrical one end is provided with thread segment two,
The other end of described thread segment two is provided with bearing pin head, is provided with changeover portion one between described cylinder and described thread segment two, described
It is provided with changeover portion two between thread segment two and described bearing pin head;Wherein, described thread segment and described thread segment two are for being mutually paired
Screw thread.The pin shaft structure using this technical scheme is simple, and axial occupation space is short, and the reliability of connection is high, processing and fabricating letter
Single, thus it is favorably improved the performance of the engineering machinery using it.The one that the present invention provides connects assembly based on above-mentioned bearing pin
The manufacture method course of processing simple, it is possible to achieve mass production, advantageously reduce production cost.What the present invention provided has
The engineering machinery of above-mentioned bearing pin connection assembly has whole technical advantages of above-mentioned bearing pin, is not repeated herein.
Detailed description of the invention
It is an object of the invention to provide a kind of bearing pin and connect assembly, this bearing pin connecting component structure is simple, takies axial sky
Between short, the reliability of connection is high, and processing and fabricating is simple, thus is favorably improved the performance of the engineering machinery using it.The present invention
Second purpose be to provide a kind of based on above-mentioned bearing pin connect assembly manufacture method.Third object of the present invention is to provide
A kind of engineering machinery applying above-mentioned bearing pin to connect assembly.
In order to make those skilled in the art be more fully understood that technical scheme, real with concrete below in conjunction with the accompanying drawings
The present invention is described in further detail to execute example.It should be noted that the embodiment in the case of not conflicting, in the application
And the feature in embodiment can be mutually combined.
Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the bearing pin that Fig. 1 is provided by a kind of specific embodiment of the present invention
Connect the assembling structural representation of assembly;Fig. 2 shows by the assembling structure of the bearing pin that specific embodiment a kind of in the present invention is provided
It is intended to;Fig. 3 is the A direction view in Fig. 2;Fig. 4 is the sectional view intercepted along the BB in Fig. 3;Fig. 5 is the second tool in the present invention
The A direction view of the assembling structural representation of the bearing pin that body embodiment is provided;Fig. 6 is the third specific embodiment institute in the present invention
The structural representation of the axis pin base provided.
In a kind of specific embodiment, as shown in Figure 1, Figure 2 with shown in Fig. 6, a kind of bearing pin that the present invention provides connects assembly,
Including bearing pin 1 and bearing pin pedestal 2, it is characterized by, bearing pin pedestal 2 is provided with the pin shaft hole 21 for installing the bearing pin adapted,
Pin shaft hole 21 is provided with the cylinder 11 of bearing pin 1.Further, one end of pin shaft hole 21 is provided with thread segment 1, thread segment
The other end of 1 is provided with circular hole 25, is provided with conical ring hole 1, thread segment 1 and circle between pin shaft hole 21 and thread segment 1
Conical ring hole 2 24 it is provided with between hole 25;One end of cylinder 11 is provided with thread segment 2 13, and the other end of thread segment 2 13 is provided with pin
Spindle nose 15, is provided with changeover portion 1, was provided with between thread segment 2 13 and bearing pin head 15 between cylinder 11 and thread segment 2 13
The section of crossing 2 14.Wherein, thread segment 1 and thread segment 2 13 are the screw thread being mutually paired.So, this bearing pin connection group is not only made
Part reaches default purpose, and is easy to processing.
During work, as it is shown in figure 1, be provided with the bearing pin 1 adapted with it on axis pin base 2, by the cylinder 11 of bearing pin 1
Parts 3 are positioned.Further, shown in Fig. 2 and Fig. 6, mid portion on cylinder 11 or away from screw thread
One end of section 2 13 is for installation targets parts 3, and thread segment 2 13 is arranged in thread segment 1, and the bearing pin head of correspondence
15 are also loaded onto in circular hole 25.It is apparent that this structure may be used on lid and the pedestal of docking, now, lid and pedestal are respectively pin
Axle bed 2 or parts 3, and the relativeness of the two can exchange, and i.e. lid can be set to parts 3, pedestal is set to bearing pin
Seat 2 or lid be set to axis pin base 2, pedestal is set to parts 3.
Further, as in figure 2 it is shown, the diameter of thread segment 2 13 is more than the diameter of cylinder 11, and thread segment 2 13
On the path of screw thread more than or equal to the diameter of cylinder 11, and the diameter of thread segment 2 13 is more than outside bearing pin head 15
The path of the screw thread on footpath, and thread segment 2 13 is more than or equal to the maximum outside diameter of the appearance profile of bearing pin head 15.
Further, refer to Fig. 3, bearing pin head 15 is square spigot.Further, square spigot is turret head, its section
Face is regular hexagon, and intersection, each limit is provided with chamfering or fillet.
On the basis of technique scheme, it is also possible to further improved.Specifically, as shown in Figure 6, thread segment one
The diameter of 23 is more than the diameter of pin shaft hole 21, and the path of the screw thread on thread segment 1 is more than the diameter of pin shaft hole 21.Enter
One step ground, the diameter of thread segment 1 is less than the aperture of circular hole 25, and the big footpath of the screw thread on thread segment 1 is less than circular hole
The aperture of 25.So, not only make this axis pin base reach initial purpose, and be easy to processing.
On the basis of any of the above-described technical scheme, it is also possible to further improved.Specifically, refer to Fig. 4, transition
Section 1 uses form connecting cylinder body 11 and the thread segment 2 13 of arc transition.Further, changeover portion 2 14 uses circular arc
The form connecting pin spindle nose 15 of transition and thread segment 2 13.Further, the path of changeover portion 2 14 is more than or equal to pin
The maximum outside diameter of the appearance profile of spindle nose 15.Yet further, the non-maximum of the appearance profile of changeover portion 2 14 and bearing pin head 15
Outer radius is again with the transient mode of rounding.
On the basis of any of the above-described technical scheme, it is also possible to further improved.Specifically, as it is shown on figure 3, bearing pin
The diameter of the cylinder at the intersecting lens place of adjacent each of the square spigot of 15 is equal to the path of changeover portion 2 14.It addition, such as Fig. 5 institute
Show, it should be apparent that, the diameter of the cylinder at the intersection place of each adjacent side of bearing pin head 15 can be more than the little of changeover portion 2 14
Footpath, now the intersection of suitable adjacent side each to bearing pin head 15 carries out chamfering, and the path of changeover portion 2 14 can be made to be more than
Or the maximum outside diameter of the appearance profile equal to bearing pin head 15.Furthermore, it is to be understood that ground, the phase of adjacent each of the square spigot of bearing pin head 15
The diameter of the cylinder at intersection place can also be suitably less than the path of changeover portion 2 14.
On the basis of any of the above-described technical scheme, it is also possible to further improved.Specifically, as shown in Figure 6, conical ring
The diameter of the big nose end in hole 1 is identical with the size of the path of the screw thread of thread segment 1;And the small bore end in conical ring hole one
Diameter is identical with the size of described pin shaft hole.Further, the diameter of the small bore end in conical ring hole 2 24 and thread segment 1 is big
The size in footpath is identical, and the diameter of the big nose end in conical ring hole 2 24 is identical with the size of the diameter of circular hole 25.
Further, as in figure 2 it is shown, screw thread on thread segment 1 uses the form of triangle thread;Equally, this screw thread
Screw thread in section 1 can also use rectangular thread, trapezoidal thread, saw-tooth thread or other special shape screw thread.Such as figure
Shown in 6, the screw thread on thread segment 2 13 uses the form of triangle thread;Equally, the screw thread on this thread segment 2 13 is all right
Use rectangular thread, trapezoidal thread, saw-tooth thread or other special shape screw thread.Wherein, thread segment 1 and thread segment
2 12 is the screw thread being mutually paired.
On the basis of any of the above-described technical scheme, it is also possible to further improved.Refer to Fig. 7 and Fig. 8, Fig. 7 is
The structural representation of the 4th kind of axis pin base that specific embodiment is provided in the present invention;Fig. 8 is that the present invention the 4th kind is embodied as
The bearing pin that example is provided connects the assembling structural representation of assembly.
Concrete, as it is shown in fig. 7, pin shaft hole 21 is distributed on two journal stirrups of bearing pin pedestal 2, right for being used for installing therebetween
The mounting groove of parts 3, i.e. pin shaft hole 21 is answered to be distributed in the both sides of described mounting groove.In a kind of unshowned embodiment, institute
The mounting groove stated can also be for installing the installing hole of corresponding parts 3.As shown in Figure 8, a part for corresponding parts 3 is arranged on
In two journal stirrups of bearing pin pedestal 2, carried out hinged by bearing pin 1.It should be noted that the present invention is to this installing hole or groove
Specific constructive form do not do any restriction.Alternatively, it is also possible to be used for pacifying by the way of grooving on bearing pin pedestal 2 or hole
The corresponding parts 3 of dress.
Wherein, in any of the above-described technical scheme, its one end or two ends can be arranged on by cylinder 11 as required
In the pin shaft hole 21 of axis pin base 2.
Second purpose of the present invention is to provide a kind of manufacture method connecting assembly based on above-mentioned bearing pin, including bearing pin and pin
The manufacture method of axle bed, described bearing pin is the bearing pin described in any of the above-described technical scheme, and described axis pin base is any of the above-described skill
Axis pin base in art scheme,
Wherein, the manufacture method of bearing pin, comprise the following steps:
Step 11, uses round steel or bar to carry out the blanking of bearing pin.
Step 12, carries out the initial processing of appearance profile by lower good material, including at the beginning of the appearance profile to each section of bearing pin
Car, and leave suitable surplus.
Step 13, carries out modifier treatment to the part through initial processing.
Step 14, processes described bearing pin head, including each side of milling square spigot and the intersection to adjacent side
Carry out chamfering or rounding, and use milling cutter vertical with bearing pin but disjoint mode with directly reach described changeover portion two with
The purpose of the transient mode of rounding it is again with at the non-maximum outside diameter of the appearance profile of described bearing pin head.
Step 15, processes described thread segment two, described cylinder and described changeover portion one and described changeover portion two, including
Changeover portion two and cutting thread described in changeover portion one, car described in cylinder, car described in car.Wherein described in cylinder, car described in car
Described in changeover portion one, car, the processing sequence of changeover portion can the most suitably adjust.
Step 16, carries out chamfering to the end of described cylindrical disconnected section or rounding processes.
Step 17, carries out polish to described cylindrical cylindrical, to ensure that its surface roughness reaches to use requirement.
Illustrate, in a step 11, the material manufacturing multiple bearing pins can be connected together, after experience step 12 to step 17
Again each is nearly completed bearing pin to separate, thus realizes once can processing multiple bearing pin, improve efficiency.
Wherein, the manufacture method of axis pin base, comprise the following steps:
Step 21, axis pin base blank is processed, if having the needs of high intensity to axis pin base, is then carried out corresponding quenched place
Reason;Without high requirement, the most do not carry out modifier treatment.
Step 22, boring, bore described pin shaft hole and comprise at the bottom of the first time at described thread segment one and described circular hole
Hole, and exposed section each to hole chamfering deburring.
Step 23, reaming, the bottom outlet of thread segment one described in counterboring axially counterboring put in place.
Step 24, again reaming, circular hole described in counterboring axially counterboring put in place.
Step 25, fraising, including articulation pin shaft hole and circular hole, circular hole articulation axially puts in place but can not damage described conical ring hole
The technique guard space of reserved about 0.5mm between two, and maximum distance and the conical ring hole two that circular hole is when articulation.
Step 26, tapping, carry out screw thread process including to thread segment one.
Step 27, is carried out each hole and thread segment one and does antirust treatment.
Illustrating, in step 21, the blank course of processing of axis pin base can complete with reference to prior art, the most no longer carries out
Describe in detail.
The 3rd purpose of the present invention is to provide a kind of engineering machinery, connects assembly including bearing pin, and described bearing pin is connected as
Stating the bearing pin described in arbitrary technical scheme and connect assembly, the other parts of this engineering machinery are referred to prior art, the most not
Reinflated.
It should be noted that those skilled in the art completely may not be used when connecting the manufacture method of assembly with reference to this bearing pin
Relatively simple understanding or this manufacture method of comprehension is got final product with reference to any accompanying drawing.Therefore, the present invention does not provide this part
Accompanying drawing.
Compared with prior art, the present invention provides bearing pin to connect assembly, and including bearing pin pedestal, described bearing pin pedestal is provided with
For installing the pin shaft hole of the bearing pin adapted, being provided with bearing pin in described pin shaft hole, described bearing pin includes cylinder, described pin
One end of axis hole is provided with thread segment one, and the other end of described thread segment one is provided with circular hole, described pin shaft hole and described thread segment one
Between be provided with conical ring hole one, be provided with conical ring hole two between described thread segment one and described circular hole;Described cylindrical one end is provided with
Thread segment two, the other end of described thread segment two is provided with bearing pin head, is provided with transition between described cylinder and described thread segment two
Duan Yi, is provided with changeover portion two between described thread segment two and described bearing pin head;Wherein, described thread segment one and described thread segment two
For the screw thread being mutually paired.The pin shaft structure using this technical scheme is simple, and axial occupation space is short, and the reliability of connection is high,
Processing and fabricating is simple, thus is favorably improved the performance of the engineering machinery using it.The one that the present invention provides is based on above-mentioned pin
The manufacture method course of processing that axle connects assembly is simple, it is possible to achieve mass production, advantageously reduces production cost.The present invention
The engineering machinery with above-mentioned bearing pin connection assembly provided has whole technical advantages of above-mentioned bearing pin, is not repeated herein.
Above bearing pin provided by the present invention connection assembly, manufacture method, engineering machinery are described in detail.Herein
In apply specific case principle and the embodiment of the present invention be set forth, the explanation of above example is only intended to side
Assistant solves method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, not
On the premise of departing from the principle of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modification also falls into
In the protection domain of the claims in the present invention.