CN106515850B - A kind of front axle assembly and its assembly method - Google Patents
A kind of front axle assembly and its assembly method Download PDFInfo
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- CN106515850B CN106515850B CN201610975810.8A CN201610975810A CN106515850B CN 106515850 B CN106515850 B CN 106515850B CN 201610975810 A CN201610975810 A CN 201610975810A CN 106515850 B CN106515850 B CN 106515850B
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- needle bearing
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- assembly
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000013011 mating Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 20
- 238000007373 indentation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/12—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being suspensions, brakes or wheel units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2320/00—Manufacturing or maintenance operations
- B60B2320/10—Assembling; disassembling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2380/00—Bearings
- B60B2380/10—Type
- B60B2380/16—Needle bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/30—Increase in
- B60B2900/321—Lifetime
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/30—Increase in
- B60B2900/325—Reliability
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Manufacturing & Machinery (AREA)
- Rolling Contact Bearings (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention discloses a kind of front axle assembly and its assembly method, the front axle assembly includes front axle, knuckle assembly and stub.Front axle assembly stub is using non-equal gauge structures needle bearing structure above and below, the reliability and stability of front axle assembly can be significantly improved, significantly improve the service life of front axle assembly, reduce steering drag, stub assembles and will not be scratched again when opening and inspecting the mating surface of stub and needle bearing, for the ease of trim designs special tooling, needle bearing liner using turnup structure install when and as requested direction assembly, it can prevent loosening for needle roller, assembly number of parts is reduced, assembly technology is simple, compact-sized.Stub uses non-uniform structure with upper and lower needle bearing internal diameter, diameter difference is less than the half of roller bearing needle diameter, upper and lower needle bearing liner uses unilateral turnup structure, flange direction towards the small direction of needle bearing internal diameter, when press fitting two liners of upper and lower needle bearing be pressed into the same direction.
Description
Technical field
The present invention relates to a kind of front axle assembly and mounting means, belong to auto parts and components field.
Background technology
Currently, bushing is due to the use of easy to wear in the process up and down for Heavy Truck Front Axle assembly knuckle, gradually by needle roller
Bearing replaces, and needle bearing is complicated compared with the assembly technology of bushing, it is desirable that assembly precision it is high, such as assemble not in place, be easy to cause
Needle roller surface tear, abrasion is abnormal, shortens the service life of needle bearing, while roller bearing needle uses oil before general assembly
Fat is kept fixed, if mounting means is unreasonable, be easy to cause the problems such as needle roller falls off in front axle assembly assembling process；It is domestic
The front axle assembly stub of present mainstream is to use lock pin locking structure, in use since lock pin locking surface is too small main simultaneously
The big reason of stress is sold, there is a possibility that stub is loosened and shaken, the effect of lock pin is caused to cannot achieve and lock pin locking screw
The possibility that mother loosens reduces the reliability of front axle assembly to accelerate the inordinate wear of stub and bushing.
Invention content
The technical problem to be solved by the present invention is in view of the defects existing in the prior art, provide a kind of front axle assembly and its
Assembly method.
To solve this technical problem, the present invention provides a kind of front axle assemblies, including front axle, knuckle assembly and master
Pin, the knuckle assembly includes knuckle, upper needle bearing, lower needle bearing and thrust bearing, the front axle left and right ends
Fist portion is provided with kingpin bore, and the angled front axle stop bit chamfering for β is arranged in kingpin bore lower face；The upper needle bearing diameter is small
In lower needle bearing diameter, needle bearing liner one end is turnup structure, and roller bearing needle is kept by needle bearing liner
On upper needle bearing and lower needle bearing；The knuckle is equipped with upper needle bearing hole and lower needle bearing hole, the upper rolling
The aperture in needle shaft bearing bore and lower needle bearing hole is adapted to upper needle bearing with lower needle bearing respectively, upper needle bearing and lower rolling
Needle bearing is respectively pressed into needle bearing hole and lower needle bearing hole；The stub uses three-level multidiameter structure, stub
Miner diameter end, central diameter section and bigger diameter end are adapted to upper needle bearing, kingpin bore and lower needle bearing respectively, and central diameter section is adopted with kingpin bore
With force fit, central diameter section and bigger diameter end transition position use oblique angle for the transition structure of β；Thrust bearing is arranged in kingpin bore lower end
Between lower needle bearing.
Ranging from 30 °~60 ° of the front axle stop bit undercut ss.
The upper needle bearing hole top of the knuckle is equipped with kingpin bore upper end platform.
The central diameter section of the stub and the diameter difference of miner diameter end are the 1/10 of roller bearing needle diameter, bigger diameter end and central diameter
Section diameter difference is less than the half of roller bearing needle diameter.
The upper needle bearing, lower needle bearing diameter difference are less than the half of roller bearing needle diameter.
The assembly method of front axle assembly of the present invention, includes the following steps：
1) tooling is made：The tooling is equipped with optical axis and pedestal, and the diameter of optical axis is identical with the miner diameter end diameter of stub；
2) knuckle assembly is assembled：Upper needle bearing and lower needle bearing are pressed into the upper needle bearing of knuckle respectively
In hole and lower needle bearing hole, the flange direction of needle bearing liner is towards the small direction of needle bearing internal diameter；
3) front axle assembly is assembled：
A. the tentatively alignment of knuckle assembly, front axle, thrust bearing, adjust pad corresponding aperture is in place first；
B. then tooling is put by hand from upper needle bearing upper end, optical axis sequentially passes through the upper needle roller axis of knuckle assembly
It holds, adjust pad, kingpin bore, thrust bearing and lower needle bearing, tooling are incited somebody to action when across upper needle bearing and lower needle bearing
Needle bearing liner is gone out and keeps roller bearing needle on upper needle bearing and lower needle bearing without getting loose, work
Dress is supported on the kingpin bore upper end platform of knuckle by pedestal and by knuckle assembly, adjust pad, thrust bearing and preceding
Axis kingpin bore is aligned；
C. it in the kingpin bore finally by forcing press by stub along the optical axis direction force fit front axle of tooling, was pressed into
Tooling is ejected in journey, when central diameter section and the stub stop bit chamfering of bigger diameter end transition position and front axle stop bit chamfer contact, forcing press
Pressure value significantly increase suddenly, show stub assembly in place, at this time be more than preset pressure limit value, forcing press automatically by
The work of relief valve control pressure machine and automatically opening releases stress, and stub force fit completes the assembly of front axle assembly.
The tooling is equipped with optical axis, pedestal and handle, and the length of the optical axis is longer than needle bearing, lower needle roller axis
Hold, the height of kingpin bore and thrust bearing and, the diameter of optical axis is identical as the diameter of miner diameter end, pedestal using circular configuration, its
Diameter is adapted to the kingpin bore upper end platform of knuckle.
Advantageous effect：Compared with prior art, the present invention compact-sized, front axle assembly stub is using upper and lower non-isometrical knot
Structure needle bearing structure, can significantly improve the reliability and stability of front axle assembly, be significantly improved compared with bush structure
The service life of front axle assembly, while steering drag is reduced again, stub assembles and will not scratch stub and needle bearing again when opening and inspecting
Mating surface, for the ease of trim designs special tooling, when needle bearing liner is installed using turnup structure and as requested
Direction is assembled, and can prevent loosening for needle roller, assembly number of parts from reducing, assembly technology is simple, and the height for improving front axle assembly can
By property and stability, the service life of front axle assembly is significantly improved.Stub uses not isometrical knot with upper and lower needle bearing internal diameter
Structure, diameter difference are less than the half of roller bearing needle diameter, and upper and lower needle bearing liner uses unilateral turnup structure, flange side
To towards the small direction of needle bearing internal diameter, when press fitting two liners of upper and lower needle bearing be pressed into the same direction.
Description of the drawings
Fig. 1 is the structural schematic diagram of front axle assembly of the present invention；
Fig. 2 is the structural schematic diagram of shaft end before the present invention；
Fig. 3 is the structural schematic diagram of knuckle assembly of the present invention；
Fig. 4 is the structural schematic diagram of knuckle of the present invention；
Fig. 5 is structural schematic diagram of the needle bearing of the present invention with liner；
Fig. 6 is the structural schematic diagram of stub of the present invention；
Fig. 6 a are the diagrammatic cross-section of stub of the present invention；
Fig. 7 is that needle bearing of the present invention assembles schematic diagram；
Fig. 8 is the structural schematic diagram of tooling of the present invention；
Fig. 9 is the schematic diagram that front axle assembly liner of the present invention is gone out；
Figure 10 is front axle assembly stub assembling schematic diagram of the present invention.
In figure：1 front axle, 11 kingpin bores, 12 front axle stop bit chamferings, 2 knuckles, needle bearing hole, 22 times needle roller axis on 21
Bearing bore, 23 kingpin bore upper end platforms, 3 stubs, 31 miner diameter ends, 32 central diameter sections, 33 bigger diameter ends, 34 stub stop bit chamferings, needle roller on 4
Bearing, 5 times needle bearings, 6 roller bearing needles, 61 needle bearing liners, 7 thrust bearings, 8 adjust pads, 9 toolings, 91 light
Axis, 92 pedestals, 93 handles, 10 forcing presses.
Specific implementation mode
The present invention is specifically described with reference to the accompanying drawings and embodiments.
Fig. 1 show the structural schematic diagram of front axle assembly of the present invention.
The present invention includes front axle 1, knuckle assembly and stub 3.
Fig. 2 show the structural schematic diagram of shaft end before the present invention.
1 left and right ends fist portion of the front axle is provided with kingpin bore 11, and the angled front axle for β is arranged in 11 lower face of kingpin bore
Stop bit chamfering 12.
Ranging from 30 °~60 °, most preferably 45 ° of the β of the front axle stop bit chamfering 12.
Fig. 3 show the structural schematic diagram of knuckle assembly of the present invention.
The knuckle assembly includes knuckle 2, upper needle bearing 4 and lower needle bearing 5.
4 diameter of upper needle bearing is less than 5 diameter of lower needle bearing.
Fig. 4 show the structural schematic diagram of knuckle of the present invention.
The knuckle 2 is equipped with upper needle bearing hole 21 and lower needle bearing hole 22.
Upper 21 top of needle bearing hole of the knuckle 2 is equipped with kingpin bore upper end platform 23.
Fig. 5 show structural schematic diagram of the needle bearing of the present invention with liner.
Roller bearing needle 6, which is maintained at by needle bearing liner 61 in upper needle bearing 4 and lower needle bearing 5, not to be taken off
It falls, liner is in order to improve intensity, and using turnup structure, flange direction is towards the small direction of needle bearing internal diameter.
A diameter of d1 of roller bearing needle 6, upper needle bearing internal diameter D1 are less than internal diameter D2, D1 and the D2 of lower needle bearing
Difference be △ D, △ D numerical value be less than 0.5d1.
Fig. 6 show the structural schematic diagram of stub of the present invention.
Fig. 6 a show the diagrammatic cross-section of stub of the present invention.
The stub 3 uses three-level multidiameter structure, miner diameter end 31, central diameter section 32 and the bigger diameter end 33 of stub 3 respectively with
Upper needle bearing 4, kingpin bore 11 and lower needle bearing 5 are adapted to.
Central diameter section 32 uses force fit, 12 size of front axle stop bit chamfering and stub central diameter and outside diameter with kingpin bore 11
Transition position chamfering 34 is identical, in this way when stub 3 is pressed and stop bit is played the role of in the 11 times chamferings cooperation of the kingpin bore of front axle, simultaneously
Stub stop bit chamfering 34 with.Central diameter section 32 and 33 transition position of bigger diameter end use oblique angle for the transition structure of β, using chamfer dimesion come
Ensure the height and position of press fitting stub.
A diameter of D3 of the miner diameter end 31 of the stub 3, a diameter of D4 of central diameter section 32, a diameter of D5 of bigger diameter end 33.
The diameter difference of D4 and D3 is that 1/10, D5 and the D4 diameter difference of 6 diameter of roller bearing needle are less than roller bearing needle 6
The half of diameter, on the one hand by 3 force fit main pin holes of fore axis 11 of stub when will not scratch stub miner diameter end 31, while interference
Since the miner diameter end 31 of stub 3, central diameter section 32 are close with 33 three parts diameter value of bigger diameter end when indentation, significantly dropped when being pressed into this way
Damage at 3 diameter transition of low stub to roller bearing needle 6, by stub central diameter section 32 and big when another aspect force fit
The structure of 33 transition chamfering of diameter end limits the indentation height dimension of stub 3, i.e. stub 3 is pressed into front-axle pivot by forcing press 10
When in hole 11, when stub central diameter section 32 and 33 transition position chamfering 34 of bigger diameter end contact front axle end-beveling 12, forcing press 10
Active force can significantly increase suddenly, show stub 3 assembly in place, at this time by relief valve come the work of control pressure machine 10 and from
Dynamic opening releases stress, and the operation of 3 force fit of stub is completed.
Fig. 7 show needle bearing assembly schematic diagram of the present invention.
The aperture in the upper needle bearing hole 21 and lower needle bearing hole 22 respectively with upper needle bearing 4 and lower needle bearing
5 adaptations, upper needle bearing 4 and lower needle bearing 5 are respectively pressed into needle bearing hole 21 and lower needle bearing hole 22.
Thrust bearing 7 is arranged between 11 lower end of kingpin bore and lower needle bearing 5.
Fig. 8 show the structural schematic diagram of tooling of the present invention.
To ensure that roller bearing needle 6 is not fallen off, while the abjection of needle bearing liner for convenience, design this tooling 9.
The tooling 9 is equipped with optical axis 91, pedestal 92 and handle 93.
The length of the optical axis 91 is longer than the height of needle bearing 4, lower needle bearing 5, kingpin bore 11 and thrust bearing 7
With.
The diameter D6 of optical axis 91 is slightly less than 4 internal diameter of needle bearing, identical as the diameter of miner diameter end 31.
It is not pierced by from the kingpin bore 11 of knuckle 2 and front axle 1 to ensure that tooling 9 penetrates after kingpin bore 11, pedestal 92 uses
Circular configuration, its diameter are adapted to the kingpin bore upper end platform 23 of knuckle 2.
Handle 93 picks and places structure using person easy to operation.
Figure 10 show front axle assembly stub assembling schematic diagram of the present invention.
The present invention also provides a kind of assembly methods of front axle assembly, include the following steps：
1) tooling 9 is made：The tooling 9 is equipped with optical axis 91 and pedestal 92, the miner diameter end 31 of the diameter of optical axis 91 with stub
Diameter；
2) knuckle assembly is assembled：Upper needle bearing 4 and lower needle bearing 5 are pressed into the upper needle roller of knuckle 2 respectively
In bearing hole 21 and lower needle bearing hole 22,61 flange direction of needle bearing liner towards the small direction of needle bearing internal diameter, and
Needle bearing liner 61 is kept not dismantle；
3) front axle assembly is assembled：
A. the tentatively alignment of knuckle assembly, front axle 1, thrust bearing 7,8 corresponding aperture of adjust pad is in place first；
B. then tooling 9 is put by hand from 4 upper end of upper needle bearing, optical axis 91 sequentially passes through the upper rolling of knuckle assembly
Needle bearing 4, adjust pad 8, main pin holes of fore axis 11, thrust bearing 7 and lower needle bearing 5, while tooling 9 is across upper needle roller axis
Needle bearing liner 61 is gone out when holding 4 and lower needle bearing 5 and keeps roller bearing needle 6 in upper needle bearing 4 and lower rolling
Without getting loose (be illustrated in figure 9 needle bearing liner go out schematic diagram) on needle bearing 5, tooling 9 passes through pedestal 92
It is supported on the kingpin bore upper end platform 23 of knuckle 2 and by knuckle assembly, adjust pad 8, thrust bearing 7 and front axle master
Pin hole 11 is aligned, convenient for the indentation assembly of stub 3；
C. finally by forcing press 10 by stub 3 along the kingpin bore 11 of 9 optical axis of tooling, 91 direction force fit front axle 1
In, tooling 9 is ejected in process of press in, when the stub stop bit chamfering 34 and front axle stop bit of 33 transition position of central diameter section 32 and bigger diameter end
Chamfering 12 contacts, and the pressure value of forcing press 10 significantly increases suddenly, shows the assembly of stub 3 in place, is more than preset pressure at this time
Limiting value, forcing press 10 are released stress automatically by the work and automatically opening of relief valve control pressure machine 10,3 interference pressure of stub
Enter, completes the assembly of front axle assembly.
Compared with prior art, the present invention compact-sized, front axle assembly stub is using non-equal gauge structures needle bearing above and below
Structure can significantly improve the reliability and stability of front axle assembly, front axle assembly is significantly improved compared with bush structure
Service life, while steering drag is reduced again, stub assembles and will not be scratched again when opening and inspecting the mating surface of stub and needle bearing, is
Convenient for trim designs special tooling, when needle bearing liner is installed using turnup structure and direction assembly as requested, energy
Prevent loosening for needle roller, assembly number of parts from reducing, assembly technology is simple, improves the high reliability and stabilization of front axle assembly
Property, significantly improve the service life of front axle assembly.Stub uses non-uniform structure, diameter difference with upper and lower needle bearing internal diameter
Less than the half of roller bearing needle diameter, upper and lower needle bearing liner uses unilateral turnup structure, and flange direction is towards needle roller
The small direction of bearing bore diameter, when press fitting two liners of upper and lower needle bearing be pressed into the same direction.
The embodiment above of the present invention, is merely illustrative, be not it is only, it is all within the scope of the present invention or it is equivalent this
Change in the range of invention is surrounded by the present invention.
Claims (6)
1. a kind of front axle assembly, including front axle (1), knuckle assembly and stub (3), the knuckle assembly include knuckle
(2), upper needle bearing (4), lower needle bearing (5) and thrust bearing (7), it is characterised in that：Front axle (1) left and right ends fist
Portion is provided with kingpin bore (11), and the angled front axle stop bit chamfering (12) for β is arranged in kingpin bore (11) lower face；The upper needle roller
Bearing (4) diameter is less than lower needle bearing (5) diameter, and needle bearing liner (61) one end is turnup structure, roller bearing needle
(6) it is maintained on upper needle bearing (4) and lower needle bearing (5) by needle bearing liner (61)；The knuckle (2) is equipped with
Upper needle bearing hole (21) and lower needle bearing hole (22), upper needle bearing hole (21) top are equipped with kingpin bore upper end platform
(23), the aperture in the upper needle bearing hole (21) and lower needle bearing hole (22) respectively with upper needle bearing (4) and lower needle roller
Bearing (5) is adapted to, and upper needle bearing (4) and lower needle bearing (5) are respectively pressed into needle bearing hole (21) and lower needle bearing
In hole (22)；The stub (3) uses three-level multidiameter structure, miner diameter end (31), central diameter section (32) and the bigger diameter end of stub (3)
(33) it is adapted to respectively with upper needle bearing (4), kingpin bore (11) and lower needle bearing (5), central diameter section (32) and kingpin bore (11)
Using force fit；Central diameter section (32) and bigger diameter end (33) transition position use oblique angle for the transition structure of β；Thrust bearing (7) is set
It sets between kingpin bore (11) lower end and lower needle bearing (5)；
The assembly method of the front axle assembly includes the following steps：
1) tooling (9) is made：The tooling (9) is equipped with optical axis (91) and pedestal (92), the same stub of diameter (3) of optical axis (91)
Miner diameter end (31) diameter is identical；
2) knuckle assembly is assembled：Upper needle bearing (4) and lower needle bearing (5) are pressed into the upper rolling of knuckle (2) respectively
In needle shaft bearing bore (21) and lower needle bearing hole (22), the flange direction of needle bearing liner (61) is small towards needle bearing internal diameter
Direction；
3) front axle assembly is assembled：
A. the tentatively alignment of knuckle assembly, front axle (1), thrust bearing (7), adjust pad (8) corresponding aperture is in place first；
B. then tooling (9) is put by hand from upper needle bearing (4) upper end, optical axis (91) sequentially passes through the upper of knuckle assembly
Needle bearing (4), adjust pad (8), kingpin bore (11), thrust bearing (7) and lower needle bearing (5), tooling (9) is across upper
Needle bearing liner (61) is gone out when needle bearing (4) and lower needle bearing (5) and keeps roller bearing needle (6) in upper rolling
Without getting loose on needle bearing (4) and lower needle bearing (5), tooling (9) is supported on knuckle (2) by pedestal (92)
It is aligned on kingpin bore upper end platform (23) and by knuckle assembly, adjust pad (8), thrust bearing (7) and kingpin bore (11)；
C. finally by forcing press (10) by stub (3) along the master of optical axis (91) the direction force fit front axle (1) of tooling (9)
In pin hole (11), tooling (9) are ejected in process of press in, when the stub stop bit of central diameter section (32) and bigger diameter end (33) transition position falls
Angle (34) is contacted with front axle stop bit chamfering (12), and the pressure value of forcing press (10) significantly increases suddenly, shows that stub (3) is assembled to
Position, at this time be more than preset pressure limit value, forcing press (10) automatically by relief valve control pressure machine (10) work and from
Dynamic opening releases stress, and stub (3) force fit completes the assembly of front axle assembly.
2. front axle assembly according to claim 1, it is characterised in that：Ranging from 30 ° of the β of the front axle stop bit chamfering (12)
~60 °.
3. front axle assembly according to claim 1, it is characterised in that：The central diameter section (32) and miner diameter end of the stub (3)
(31) diameter difference is the 1/10 of roller bearing needle (6) diameter, and bigger diameter end (33) is less than needle roller with central diameter section (32) diameter difference
The half of bearing needle (6) diameter.
4. front axle assembly according to claim 1, it is characterised in that：The upper needle bearing (4), lower needle bearing (5)
Diameter difference is less than the half of roller bearing needle (6) diameter.
5. a kind of assembly method of front axle assembly according to any one of claims 1-4, which is characterized in that including walking as follows
Suddenly：
1) tooling (9) is made：The tooling (9) is equipped with optical axis (91) and pedestal (92), the same stub of diameter (3) of optical axis (91)
Miner diameter end (31) diameter is identical；
2) knuckle assembly is assembled：Upper needle bearing (4) and lower needle bearing (5) are pressed into the upper rolling of knuckle (2) respectively
In needle shaft bearing bore (21) and lower needle bearing hole (22), the flange direction of needle bearing liner (61) is small towards needle bearing internal diameter
Direction；
3) front axle assembly is assembled：
A. the tentatively alignment of knuckle assembly, front axle (1), thrust bearing (7), adjust pad (8) corresponding aperture is in place first；
B. then tooling (9) is put by hand from upper needle bearing (4) upper end, optical axis (91) sequentially passes through the upper of knuckle assembly
Needle bearing (4), adjust pad (8), kingpin bore (11), thrust bearing (7) and lower needle bearing (5), tooling (9) is across upper
Needle bearing liner (61) is gone out when needle bearing (4) and lower needle bearing (5) and keeps roller bearing needle (6) in upper rolling
Without getting loose on needle bearing (4) and lower needle bearing (5), tooling (9) is supported on knuckle (2) by pedestal (92)
It is aligned on kingpin bore upper end platform (23) and by knuckle assembly, adjust pad (8), thrust bearing (7) and kingpin bore (11)；
C. finally by forcing press (10) by stub (3) along the master of optical axis (91) the direction force fit front axle (1) of tooling (9)
In pin hole (11), tooling (9) are ejected in process of press in, when the stub stop bit of central diameter section (32) and bigger diameter end (33) transition position falls
Angle (34) is contacted with front axle stop bit chamfering (12), and the pressure value of forcing press (10) significantly increases suddenly, shows that stub (3) is assembled to
Position, at this time be more than preset pressure limit value, forcing press (10) automatically by relief valve control pressure machine (10) work and from
Dynamic opening releases stress, and stub (3) force fit completes the assembly of front axle assembly.
6. the assembly method of front axle assembly according to claim 5, it is characterised in that：The tooling (9) is equipped with optical axis
(91), the length of pedestal (92) and handle (93), the optical axis (91) is longer than needle bearing (4), lower needle bearing (5), master
The height of pin hole (11) and thrust bearing (7) and, the diameter of the diameter and miner diameter end (31) of optical axis (91), pedestal (92) using justify
Shape structure, its diameter are adapted to the kingpin bore upper end platform (23) of knuckle (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975810.8A CN106515850B (en) | 2016-11-07 | 2016-11-07 | A kind of front axle assembly and its assembly method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975810.8A CN106515850B (en) | 2016-11-07 | 2016-11-07 | A kind of front axle assembly and its assembly method |
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| Publication Number | Publication Date |
|---|---|
| CN106515850A CN106515850A (en) | 2017-03-22 |
| CN106515850B true CN106515850B (en) | 2018-10-23 |
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| CN201610975810.8A Active CN106515850B (en) | 2016-11-07 | 2016-11-07 | A kind of front axle assembly and its assembly method |
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| CN107140019A (en) * | 2017-05-31 | 2017-09-08 | 安徽江淮汽车集团股份有限公司 | One kind turn to vice president into and its automobile |
| CN107226131A (en) * | 2017-05-31 | 2017-10-03 | 安徽江淮汽车集团股份有限公司 | One kind turn to vice president into and its automobile |
| CN108340968A (en) * | 2017-12-28 | 2018-07-31 | 北奔重型汽车集团有限公司 | A kind of front axle main pin structural system |
| CN111546042A (en) * | 2020-05-20 | 2020-08-18 | 中国重汽集团济南动力有限公司 | Heavy front axle kingpin press-fitting device and press-fitting process thereof |
| CN112298350A (en) * | 2020-09-29 | 2021-02-02 | 方盛车桥（柳州）有限公司 | Connecting mechanism of front axle steering knuckle and front axle of maintenance-free automobile |
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| US5722784A (en) * | 1995-12-06 | 1998-03-03 | American Roller Bushing Corporation | Kingpin Assembly |
| CN2301369Y (en) * | 1997-07-15 | 1998-12-23 | 杨辉遐 | Needle bearing insert for automotive steering arm and center axle |
| DE19738114A1 (en) * | 1997-09-01 | 1999-03-04 | Man Nutzfahrzeuge Ag | Front axle of a truck or omnibus with steerable, non-driven wheels |
| CN200942802Y (en) * | 2006-07-13 | 2007-09-05 | 泰州神力车桥有限公司 | Connection structure between automobile front axle knuckle and master pin |
| CN202440749U (en) * | 2012-02-27 | 2012-09-19 | 西安海迈重工机械有限公司 | Walking thrust wheel applied to road surface milling machine of needle bearing |
| CN203753232U (en) * | 2014-02-14 | 2014-08-06 | 北汽福田汽车股份有限公司 | Steering axle and vehicle |
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Effective date of registration: 20231117 Address after: Shengjing tangwangshan Road North Panwang Road West, Zhangqiu District, Jinan City, Shandong Province 250200 Patentee after: China National Heavy Duty Truck Group Jinan Power Co.,Ltd. Patentee after: Sinotruk Jinan Truck Co.,Ltd. Address before: 250102 No. 777, Hua'ao Road, high tech Zone, Jinan City, Shandong Province Patentee before: China National Heavy Duty Truck Group Jinan Power Co.,Ltd. |