A kind of bearing pin and preparation method thereof, bearing pin coupling assembly
Technical field
The present invention relates to bearing pin interconnection technique field, more particularly to a kind of bearing pin.Moreover, it relates to a kind of should
The preparation method of bearing pin.In addition, a kind of the invention further relates to bearing pin coupling assembly of the application bearing pin.The present invention is mainly developed
In for positioning, usually in the positioning of axle, rod member or other parts, that is, it is commonly used in being rigidly connected.Therefore,
It is convenient that the present invention is described with regard to this purposes, it should be appreciated that, the present invention can be used for axle, rod member or other
In being hinged of parts, you can in be used for flexible connection.
Background technology
Bearing pin is connected to mechanical field using quite extensively, such as alignment pin dissection type reductor, Split bearing pedestal,
Alignment pin has been used in the parts such as axle or rod member;And for example in engineering machinery, coupling between vehicle frame and vehicle frame, vehicle frame
Coupling between equipment, the connection that equipment individual components are mutual, all employ hinging pin shaft.But, bearing pin
The ununified design standard of structure, in the actual design of pin shaft structure, different type, designer design
Pin shaft structure varies, and using effect is not also very good.
At present, as in alignment pin, straight pin or taper bolt can be taken off in use due to the effect vibrated repeatedly
The phenomenon for going out, especially when dismounting, needs to type it out alignment pin from its one end using a less bearing pin, now
It is easy to cause original dowel hole to damage compared with small clevis pin with head, so as to affect locating effect.
The bearing pin and for example commonly used, one end major part other end usually relies on split pin and is locked, and does not only exist split pin damage
It is bad to cause out of stock possibility, and bearing pin two ends must project above axis pin base, so as to need the space more roomy than axis pin base so that
Bearing pin junction needs bigger space, causes and is accomplished by bigger space structure using the engineering machinery of pin shaft connection structure,
So as to result in the related components huge structure of engineering machinery, the raising to the performance of engineering machinery serves larger obstruction work
With.
Therefore, the structure of bearing pin coupling assembly how is improved and is optimized, the reliability of bearing pin coupling assembly is improved, and is subtracted
It is little its take up space be those skilled in the art need at present solve important technological problems.
The content of the invention
It is an object of the invention to provide a kind of bearing pin, for bearing pin coupling assembly, the pin shaft structure is simple, takes axially empty
Between it is short, the reliability of connection is high, and processing and fabricating is simple, so as to be favorably improved the performance using its engineering machinery.
Second object of the present invention is to provide a kind of bearing pin coupling assembly with above-mentioned bearing pin.
Third object of the present invention is to provide a kind of based on above-mentioned bearing pin or the preparation method of bearing pin coupling assembly.
To realize above-mentioned first purpose, the invention provides a kind of bearing pin, for bearing pin coupling assembly, including cylinder
Body, one end of the cylinder is provided with thread segment, and the other end of the thread segment is provided with bearing pin head, the cylinder and the spiral shell
Changeover portion one is provided between line section, between the thread segment and the bearing pin head changeover portion two is provided with.
Preferably, the diameter with diameter greater than the cylinder of the thread segment, and the screw thread on the thread segment
Diameter of the path more than or equal to the cylinder.
Preferably, the external diameter with diameter greater than the bearing pin head of the thread segment, and the screw thread on the thread segment
Maximum outside diameter of the path more than or equal to the appearance profile of the bearing pin head.
Preferably, the bearing pin head is square spigot.
Preferably, the square spigot is turret head, and its section is regular hexagon, and each side intersection is provided with chamfering
Or fillet.
Preferably, the changeover portion one connects the cylinder and the thread segment in the form of arc transition.
Preferably, the changeover portion two connects the bearing pin head and the thread segment in the form of arc transition, and
The path of the changeover portion two is more than or equal to the maximum outside diameter of the appearance profile of the bearing pin head, and the changeover portion two
With the transient mode for adopting rounding at the non-maximum outside diameter of the appearance profile of the bearing pin head again.
Preferably, the screw thread on the thread segment is using triangle thread or rectangular thread, trapezoidal thread, zigzag spiral shell
Line, it would however also be possible to employ other special shape screw threads.
To realize above-mentioned second purpose, a kind of bearing pin coupling assembly that the present invention is provided includes any of the above-described kind of bearing pin.
To realize above-mentioned 3rd purpose, the present invention provides a kind of based on above-mentioned bearing pin or the making side of bearing pin coupling assembly
Method, comprises the following steps:
Step 1, using round steel or bar the blanking of bearing pin is carried out.
Step 2, by lower good material the preparatory processing of appearance profile is carried out, including the appearance profile to each section of bearing pin just
Car, and leave appropriate surplus.
Step 3, to the part through preparatory processing modifier treatment is carried out.
Each side of step 4, the processing bearing pin head, including milling square spigot and the intersection to adjacent side enter
Row chamfering or rounding, and adopt milling cutter vertical with bearing pin but disjoint mode is directly to reach the changeover portion two and institute
Adopt the purpose of the transient mode of rounding at the non-maximum outside diameter of the appearance profile for stating bearing pin head again.
Step 5, processes the thread segment, the cylinder and the changeover portion one and the changeover portion two, including car
Changeover portion two and cutting thread described in changeover portion one, car described in the cylinder, car.Mistake wherein described in cylinder, car described in car
Crossing the processing sequence of changeover portion two described in section one, car can suitably be adjusted as needed.
Step 6, chamfering is carried out to disconnected section of the cylinder of end or rounding is processed.
Step 7, finishes to the cylindrical of the cylinder, to ensure that its surface roughness reaches use requirement.
Wherein, in step 1, the material for manufacturing multiple bearing pins can be connected together, experience step 2 to step 7 again
Each is nearly completed into bearing pin to be separated, so as to realize can once processing multiple bearing pins, efficiency is improved.
Compared with prior art, a kind of bearing pin that the present invention is provided, for bearing pin coupling assembly, including cylinder, it is described
One end of cylinder is provided with thread segment, and the other end of the thread segment is provided with bearing pin head, the cylinder and the thread segment it
Between be provided with changeover portion one, be provided with changeover portion two between the thread segment and the bearing pin head.Tied using the bearing pin of the technical scheme
Structure is simple, and axial occupation space is short, and the reliability of connection is high, and processing and fabricating is simple, so as to be favorably improved using its engineering
The performance of machinery.The bearing pin coupling assembly with above-mentioned bearing pin that the present invention is provided has whole technical advantages of above-mentioned bearing pin,
Will not be described here.A kind of preparation method process based on above-mentioned bearing pin or bearing pin coupling assembly that the present invention is provided is simple,
Mass production can be realized, production cost is advantageously reduced.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
The assembling structure schematic diagram of the bearing pin that Fig. 1 is provided by a kind of specific embodiment of the invention.
Fig. 2 is the A direction views in Fig. 1.
Fig. 3 is the sectional view intercepted along the BB in Fig. 2.
The A direction views of the assembling structure schematic diagram of the bearing pin that Fig. 4 is provided by second specific embodiment of the invention.
Specific embodiment
It is an object of the invention to provide a kind of bearing pin, for bearing pin coupling assembly, the pin shaft structure is simple, takes axially
Space is short, and the reliability of connection is high, and processing and fabricating is simple, so as to be favorably improved the performance using its engineering machinery.This
Second bright purpose is to provide a kind of bearing pin coupling assembly with above-mentioned bearing pin.Third object of the present invention is to provide one
Plant the preparation method based on above-mentioned bearing pin or bearing pin coupling assembly.
In order that those skilled in the art more fully understand technical scheme, it is below in conjunction with the accompanying drawings and concrete real
The present invention is described in further detail to apply example.It should be noted that the embodiment in the case where not conflicting, in the application
And the feature in embodiment can be mutually combined.
Fig. 1, Fig. 2 and Fig. 3 are refer to, the assembling structure of the bearing pin that Fig. 1 is provided by a kind of specific embodiment of the invention is shown
It is intended to;Fig. 2 is the A direction views in Fig. 1;Fig. 3 is the sectional view intercepted along the BB in Fig. 2.
In a kind of specific embodiment, as shown in figure 1, a kind of bearing pin 1 that the present invention is provided, including cylinder 11, circle
One end of cylinder 11 is provided with thread segment 13, and the other end of thread segment 13 is provided with bearing pin head 15, between cylinder 11 and thread segment 13
Changeover portion 1 is provided with, changeover portion 2 14 is provided between thread segment 13 and bearing pin head 15.Its feature includes, the diameter of thread segment 13
It is more than or equal to the diameter of cylinder 11, and spiral shell more than the path of the screw thread on the diameter of cylinder 11, and thread segment 13
The external diameter with diameter greater than bearing pin head 15 of line section 13, and the path of the screw thread on thread segment 13 is more than or equal to bearing pin head 15
Appearance profile maximum outside diameter.So, not only make the bearing pin reach default purpose, and be easy to processing.
During work, mid portion on cylinder 11 or the one end away from thread segment 13 are used to install by comprising the bearing pin
The target part of 1 bearing pin coupling assembly connection, thread segment 13 is then fitted in the corresponding pin shaft hole of axis pin base, and corresponding pin
Spindle nose 15 can also be fitted in the corresponding pin shaft hole of axis pin base.Wherein, cylinder 11 is then as needed by its one end or two
End is in the pin shaft hole of axis pin base.
Further, Fig. 2 is refer to, bearing pin head 15 is square spigot.Further, square spigot is turret head, its section
For regular hexagon, and each side intersection is provided with chamfering or fillet.
On the basis of any of the above-described technical scheme, can also further be improved.Specifically, Fig. 3, transition be refer to
Section 1 connecting cylinder body 11 and thread segment 13 in the form of arc transition.Further, changeover portion 2 14 adopts circular arc mistake
The form connecting pin spindle nose 15 for crossing and thread segment 13.Further, the path of changeover portion 2 14 is more than or equal to bearing pin head
The maximum outside diameter of 15 appearance profile.Yet further, the non-maximum outside diameter of the appearance profile of changeover portion 2 14 and bearing pin head 15
Place is again using the transient mode of rounding.
As shown in figure 3, the screw thread on thread segment 13 is in the form of triangle thread.Equally, the spiral shell on the thread segment 13
Line can also adopt rectangular thread, trapezoidal thread, saw-tooth thread or other special shape screw threads.
On the basis of any of the above-described technical scheme, can also further be improved.Specifically, Fig. 4, Fig. 4 be refer to
The A direction views of the assembling structure schematic diagram of the bearing pin provided by second specific embodiment of the invention.
As shown in figure 3, the diameter of the cylinder at the intersecting lens place in the adjacent each face of the square spigot of bearing pin head 15 is equal to changeover portion
2 14 path.In addition, as shown in figure 4, the it should be evident that diameter of the cylinder at the intersection place of each adjacent side of bearing pin head 15
The path of changeover portion 2 14 can be more than, now suitably chamfering is carried out to the intersection of each adjacent side of bearing pin head 15, you can make
Obtain the maximum outside diameter of the path more than or equal to the appearance profile of bearing pin head 15 of changeover portion 2 14.Furthermore, it is to be understood that ground, bearing pin head
The diameter of the cylinder that the intersecting lens in the 15 adjacent each face of square spigot is located can also be suitably less than the path of changeover portion 2 14.
Second object of the present invention is to provide a kind of bearing pin coupling assembly, including bearing pin and the axis pin base that adapts to it,
The bearing pin is the bearing pin in any of the above-described kind of technical scheme.
Additionally, third object of the present invention be to provide it is a kind of based on above-mentioned bearing pin or the making side of bearing pin coupling assembly
Method, comprises the following steps:
Step 1, using round steel or bar the blanking of bearing pin is carried out.
Step 2, by lower good material the preparatory processing of appearance profile is carried out, including the appearance profile to each section of bearing pin just
Car, and leave appropriate surplus.
Step 3, to the part through preparatory processing modifier treatment is carried out.
Each side of step 4, the processing bearing pin head, including milling square spigot and the intersection to adjacent side enter
Row chamfering or rounding, and adopt milling cutter vertical with bearing pin but disjoint mode is directly to reach the changeover portion two and institute
Adopt the purpose of the transient mode of rounding at the non-maximum outside diameter of the appearance profile for stating bearing pin head again.
Step 5, processes the thread segment, the cylinder and the changeover portion one and the changeover portion two, including car
Changeover portion two and cutting thread described in changeover portion one, car described in the cylinder, car.Mistake wherein described in cylinder, car described in car
Crossing the processing sequence of changeover portion two described in section one, car can suitably be adjusted as needed.
Step 6, chamfering is carried out to disconnected section of the cylinder of end or rounding is processed.
Step 7, finishes to the cylindrical of the cylinder, to ensure that its surface roughness reaches use requirement.
Wherein, in step 1, the material for manufacturing multiple bearing pins can be connected together, experience step 2 to step 7 again
Each is nearly completed into bearing pin to be separated, so as to realize can once processing multiple bearing pins, efficiency is improved.
It should be noted that those skilled in the art are complete in the preparation method with reference to the bearing pin or bearing pin coupling assembly
Relatively simple can understand without reference to any accompanying drawing or the comprehension preparation method.Therefore, do not provide in the present invention
The accompanying drawing of the part.
Compared with prior art, a kind of bearing pin that the present invention is provided, including cylinder, one end of the cylinder is provided with spiral shell
Line section, the other end of the thread segment is provided with bearing pin head, and changeover portion one is provided between the cylinder and the thread segment, described
Changeover portion two is provided between thread segment and the bearing pin head.Pin shaft structure using the technical scheme is simple, axial occupation space
Short, the reliability of connection is high, and processing and fabricating is simple, so as to be favorably improved the performance using its engineering machinery.The present invention is carried
For the bearing pin coupling assembly with above-mentioned bearing pin there are whole technical advantages of above-mentioned bearing pin, will not be described here.The present invention is carried
For a kind of preparation method process based on above-mentioned bearing pin or bearing pin coupling assembly it is simple, it is possible to achieve mass production,
Advantageously reduce production cost.
Above detailed Jie is carried out to bearing pin coupling assembly provided by the present invention and its bearing pin, the preparation method of bearing pin
Continue.Specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is only
It is to be used to help understand the method for the present invention and its core concept.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improve and repair
Decorations are also fallen in the protection domain of the claims in the present invention.