CN207130807U - A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin - Google Patents
A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin Download PDFInfo
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- CN207130807U CN207130807U CN201720513247.2U CN201720513247U CN207130807U CN 207130807 U CN207130807 U CN 207130807U CN 201720513247 U CN201720513247 U CN 201720513247U CN 207130807 U CN207130807 U CN 207130807U
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- bearing pin
- locating part
- cydariform
- positioning
- locking device
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Abstract
The utility model discloses a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin, including for coupling the bearing pin of creeper tread and positioner for alignment pin, it is characterized in that, the positioner includes transition piece, locating part, fixture and lubrication system, the head of the fixture is located in the through hole of locating part and forms storage organization with the upper end of locating part, the lubrication system includes screwed capping, kollag and sealing ring, the locating part upper end is provided with the screw thread of matching capping, lower end is provided with the groove for placing sealing ring, the kollag is placed in the storage organization, the upper end of the locating part passes through lidstock, lower end is sealed by sealing ring.Advantage：The mating surface of locating part and fixture is lubricated using kollag, it is ensured that locating part can be rotated freely flexibly with pin roll end face for a long time, and use capping and sealing ring；The positioning and locking device, it is simple in construction, it is convenient to mount and dismount, reliability is high.
Description
Technical field
A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin is the utility model is related to, belongs to heavy engineering
The running gear technical field of mechanical crawler belt.
Background technology
The running gear of ultra-large type hydraulic crawler excavator is typically by crawler belt, driving wheel, thrust wheel, upper track wheel and guide wheel group
Into.Wherein crawler belt is core component, is the carrier that the driving force of running motor is converted to complete machine walking power.Ultra-large type
The creeper tread of hydraulic crawler excavator is generally one piece casting type, is coupled with bearing pin through pin-and-hole, creeper tread and bearing pin during walking
Stress is very big, will be deformed in the course of time.Therefore, the reliability of crawler belt bearing pin positioning largely determines crawler belt
The reliability of running gear.
Traditional bearing pin localization method, it is that customization nut is only installed on the creeper tread near end part of pin shaft mostly, or
Boss and the machining of given shape are reserved on creeper tread, casting technique difficulty is big, machining cost is high, sells in the course of the work
Axle can rotate in a circumferential direction and axial float, end touching location nut, heavy wear is produced to end part of pin shaft and location nut,
Wear problem after long-term use is even more serious, and anti-loosing effect is bad, and bearing pin, which comes off, loses the risk of ability to act with complete machine
It is higher；In addition, positioner is mostly disposable, when need to untie the crawler belt of connection, then positioner must be cut off, it is time-consuming to take
Power.
The content of the invention
Technical problem to be solved in the utility model is the defects of overcoming prior art, there is provided a kind of compact-sized, dress
Tear open conveniently, service life length, reliability is high, can self-lubricating ultra-large type hydraulic crawler excavator crawler belt bearing pin positioning and locking device.
Prevent in order to solve the above technical problems, the utility model provides a kind of positioning of ultra-large type hydraulic crawler excavator crawler belt bearing pin
Loose device, including for coupling the bearing pin of creeper tread and positioner for alignment pin, it is characterized in that, the positioning dress
The outboard end for being horizontally set on bearing pin is put, the positioner includes transition piece, locating part, fixture and lubrication system, its
Space is provided between the end face of middle locating part and bearing pin outboard end, the transition piece is provided with the arc to match with creeper tread cambered surface
For the installation base that face is used to avoid opening up complexity on creeper tread with mach, the fixture sequentially passes through locating part and mistake
The through hole for crossing part is fixed, and the head of the fixture is located in the through hole of locating part and forms storage knot with the upper end of locating part
Structure, the lubrication system include screwed capping, kollag and sealing ring, and the locating part upper end is provided with matching and sealed
The screw thread of lid, lower end are provided with the groove for placing sealing ring, and the kollag is placed in the storage organization, the locating part
Upper end sealed by lidstock, lower end by sealing ring.
Further, the fixture uses soket head cap screw, and the soket head cap screw head carries annular boss, to improve
Screw thread pair pretensioning effect, and annular groove is provided with the bottom of boss, screw thread is closely-pitched external screw thread.
Further, the transition piece uses the spacer with cambered surface, and the mating surface of the cambered surface and creeper tread matches, should
The mating surface of spacer and soket head cap screw is plane, and the mating holes with soket head cap screw is unthreaded hole, and upper and lower both sides are circular arc, left and right
Both sides are straight flange.
Further, the locating part carries out axial limiting to bearing pin using cydariform set, and the outer surface of cydariform set is cydariform
Face, both end of which is taper surface, centre is arc surface, and inner side is two sections of shoulder holes, and wherein arc surface contacts with pin roll end face, real
Cash sale axial end and the rolling friction of cydariform inner room, wherein the first paragraph pore area positioned at cydariform face upper end has fine thread, are located at
Second sector hole of lower end is provided with the groove for placing sealing ring.
Further, the sealing ring uses O shape neoprene packing circles.
Further, the capping profile in ladder plate-like and is provided with interior hexagonal, lower cylindrical face carry with cydariform set
The closely-pitched external screw thread that screw thread is engaged.
Further, the control of the distance between end face of the cydariform outer rim of the cydariform set and bearing pin is in 2~3mm, cydariform
Set coordinates by the first sector hole of shoulder hole with soket head cap screw head face of cylinder small―gap suture, is freely rotatable, axially relies on axle
Shoulder is spacing.
Further, the soket head cap screw does impewdance matching with the mating surface of cydariform set and the cydariform face of cydariform set
Cure process, to improve its wearability and service life.
The beneficial effect that the utility model is reached：
Compared with prior art, the utility model uses the spacer conduct with cambered surface between soket head cap screw and creeper tread
Transition piece, the installation base that complexity is opened up on creeper tread and machining are avoided, and reduce casting risk；Using cydariform set
The axial direction of crawler belt bearing pin is positioned, the frictional force of pin roll end face and cydariform inner room is present with rolling friction, avoids pin
The abrasion of the parts such as axle, the mating surface that cydariform set is secured to soket head cap screw are lubricated using kollag, it is ensured that cydariform set
It can flexibly be rotated freely with pin roll end face for a long time, and using capping and neoprene seal with O ring, prevent lubricant leakage and dirt
Contaminate the intrusion of thing；The installation base that complexity is opened up on creeper tread and machining are avoided, and reduces casting risk；Avoid
The influence to spacing place contact surface such as creeper tread and bearing pin deformation, can have more all the time after manufacture Form and position error and long-term use
Preferable contact surface bears the play power of bearing pin vertically, avoids causing to fall because the stupefied contact in side or extruding produce stress raisers
Block or part failure.The positioning and locking device, it is simple in construction, it is convenient to mount and dismount, reliability is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is soket head cap screw schematic diagram；
Fig. 3 is spacer schematic diagram；
Fig. 4 is that cydariform covers schematic diagram；
Fig. 5 is capping schematic diagram.
In figure：1st, soket head cap screw, 2, nut, 3, creeper tread, 4, spacer, 5, O-ring, 6, cydariform set, 7, capping, 8,
Bearing pin, 9, circular arc, 10, straight flange, 11 unthreaded holes, 12, cambered surface, 13, taper surface, 14, arc surface, 15, shoulder hole, 16, groove.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating this
The technical scheme of utility model, and the scope of protection of the utility model can not be limited with this.
A kind of as shown in figure 1, positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin, it is characterised in that including
Creeper tread 3, bearing pin 8, nut 2, soket head cap screw 1, spacer 4, O-ring 5, cydariform set 6 and capping 7.The device is located at bearing pin 8
Outboard end, it is horizontally mounted, after two pieces of splits of creeper tread 3, pin-and-hole is sequentially passed through from outside to inside respectively with bearing pin 8, in advance by O
Shape circle 5 load cydariform set 6 groove in, then by soket head cap screw 1 pass through equipped with O-ring 5 cydariform set 6, then pass through every
Set 4, the cambered surface of adjustment spacer 4 merges with the cambered surface matching of creeper tread 3 tightens nut 2, and it is a certain amount of to cover the injection of 6 intracavitary in cydariform
Kollag, with capping 7 by cydariform set 6 bore seal, prevent lubricant leak outside and pollutant intrusion.
Preferably, the head of soket head cap screw 1 carries annular boss, to improve screw thread pair pretensioning effect, and in boss
Bottom be provided with annular groove, screw thread is closely-pitched external screw thread.
Preferably, the mating surface of spacer 4 and creeper tread 3 is cambered surface, and the mating surface with soket head cap screw 1 is plane, and interior
The mating holes of hex screw 1 is unthreaded hole 11, and upper and lower both sides are circular arc 9, and the right and left is straight flange 10.
Preferably, the material of the O-ring 5 is neoprene.
Preferably, the outer surface of the cydariform set 6 is cydariform face, and both end of which is taper surface 13, centre is arc surface 14,
Inner side is two sections of shoulder holes 15, and wherein first paragraph pore area has fine thread, and the second sector hole is provided with the groove 16 for placing O-ring 5.
Preferably, 7 profiles of the capping in ladder plate-like and are provided with interior hexagonal, and lower cylindrical face carries and spiral shell in cydariform set
The closely-pitched external screw thread that line is engaged.
Preferably, the control of the distance between end face of the cydariform outer rim of the cydariform set 6 and bearing pin 8 is in 2~3mm, cydariform
Set 6 coordinates by the first sector hole of shoulder hole and the head face of cylinder H9/f8 of soket head cap screw 1 small―gap suture, is freely rotatable, axle
To relying on, the shaft shoulder is spacing.
Preferably, the cydariform is moistened between covering the mating surface on 6 first sector holes and the head of soket head cap screw 1 using kollag
Sliding, kollag is placed in the inner chamber of the two formation, and bottom is sealed to prevent lubricant from leaking outside using O-ring 5, and top uses envelope
Lid 7 is sealed to prevent the intrusion of pollutant.
Preferably, the soket head cap screw 1 does sensing and quenched with the mating surface of cydariform set 6 and the cydariform face of cydariform set 6
Fiery cure process, to improve its wearability and service life.
Screw thread pair between the screw thread of above-mentioned soket head cap screw 1, cydariform set 6 and capping 7 is fine thread pair, have compared with
Good anti-loosing effect.
The mating surface of above-mentioned spacer 4 and creeper tread 3 is cambered surface, it is ensured that the validity of connection, avoids and is opened on creeper tread 3
If complicated installation base and machining, and reduce casting risk.
Above-mentioned cydariform set 6 is spacing in face of the progress of the end face of bearing pin 8 using cydariform, can avoid Form and position error and long-term use
The influence to spacing place contact surface such as the deformation of creeper tread 3, flexural deformation of bearing pin 8 afterwards, can there is ideal contact all the time
The play power of bearing pin 8 vertically is born in face, avoids causing chip off-falling or part because the stupefied contact in side or extruding produce stress raisers
Failure.Further, after crawler unit long-term use, even if there occurs moderate finite deformation, positioning are anti-for creeper tread 3 and bearing pin 8
Loose device still can be dismantled conveniently, be easy to disassemble caterpillar system and repaired or changed.
From said structure, the utility model uses the spacer conduct with cambered surface between soket head cap screw and creeper tread
Transition piece, the installation base that complexity is opened up on creeper tread and machining are avoided, and reduce casting risk, contributed to simultaneously
Improve the pretensioning effect of soket head cap screw and nut；The axial direction of crawler belt bearing pin is positioned using cydariform set, pin roll end face with
The frictional force of cydariform inner room is present with rolling friction, avoids the abrasion of the parts such as bearing pin, and cydariform set is secured to interior hexagonal
The mating surface of screw is lubricated using kollag, it is ensured that cydariform set can be rotated freely flexibly with pin roll end face for a long time, and be used
Capping and neoprene seal with O ring, prevent lubricant leakage and the intrusion of pollutant；It can avoid manufacturing Form and position error, installation
The influence to spacing place contact surface such as creeper tread and bearing pin deformation, can there is ideal connect all the time after error and long-term use
Contacting surface bears the play power of bearing pin vertically, avoids causing chip off-falling or part because the stupefied contact in side or extruding produce stress raisers
Failure.The positioning and locking device, while crawler unit reliability is ensured, take into account taken into account well well
Simplified track plate structure, casting risk, and compact-sized, convenient disassembly are reduced, especially suitable for ultra-large type hydraulic excavating
Machine.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and deformation can also be made, these change
Enter and deform and also should be regarded as the scope of protection of the utility model.
Claims (8)
1. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin, including for couple creeper tread bearing pin and
For the positioner of alignment pin, it is characterized in that, the positioner is horizontally set on the outboard end of bearing pin, positioning dress
Put including transition piece, locating part, fixture and lubrication system, be wherein provided between the end face of locating part and bearing pin outboard end
Space, the transition piece are provided with the cambered surface to match with creeper tread cambered surface, and the fixture sequentially passes through locating part and transition piece
Through hole be fixed, the head of the fixture is located in the through hole of locating part and forms storage organization with the upper end of locating part,
The lubrication system includes screwed capping, kollag and sealing ring, and the locating part upper end is provided with matching and covered
Screw thread, lower end is provided with the groove for placing sealing ring, and the kollag is placed in the storage organization, the locating part
Upper end is sealed by lidstock, lower end by sealing ring.
2. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin according to claim 1, it is characterized in that,
The fixture uses soket head cap screw, and the soket head cap screw head carries annular boss, to improve screw thread pair pretensioning effect, and
Annular groove is provided with the bottom of boss, screw thread is closely-pitched external screw thread.
3. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin according to claim 2, it is characterized in that,
The transition piece uses the spacer with cambered surface, and the mating surface of the cambered surface and creeper tread matches, the spacer and soket head cap screw
Mating surface be plane, the mating holes with soket head cap screw is unthreaded hole, and upper and lower both sides are circular arc, and the right and left is straight flange.
4. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin according to claim 1, it is characterized in that,
The locating part carries out axial limiting to bearing pin using cydariform set, and the outer surface of cydariform set is cydariform face, and both end of which is taper
Face, centre are arc surface, and inner side is two sections of shoulder holes, and wherein arc surface contacts with pin roll end face, realizes pin roll end face and cydariform
The rolling friction of inner room, wherein the first paragraph pore area positioned at cydariform face upper end has fine thread, the second sector hole positioned at lower end is opened
There is the groove for placing sealing ring.
5. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin according to claim 1, it is characterized in that,
The sealing ring uses O shape neoprene packing circles.
6. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin according to claim 2 or 4, its feature
It is that the capping profile is in ladder plate-like and is provided with interior hexagonal, lower cylindrical face is thin with being engaged with cydariform set internal thread
Tooth external screw thread.
7. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin according to claim 4, it is characterized in that,
The control of the distance between the cydariform outer rim of the cydariform set and the end face of bearing pin relies on the first of shoulder hole in 2~3mm, cydariform set
Sector hole coordinates with soket head cap screw head face of cylinder small―gap suture, is freely rotatable, axially spacing by the shaft shoulder.
8. a kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin according to claim 7, it is characterized in that,
The soket head cap screw does impewdance matching cure process with the mating surface of cydariform set and the cydariform face of cydariform set, to improve it
Wearability and service life.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513247.2U CN207130807U (en) | 2017-05-10 | 2017-05-10 | A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513247.2U CN207130807U (en) | 2017-05-10 | 2017-05-10 | A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207130807U true CN207130807U (en) | 2018-03-23 |
Family
ID=61631109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720513247.2U Withdrawn - After Issue CN207130807U (en) | 2017-05-10 | 2017-05-10 | A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207130807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988373A (en) * | 2017-05-10 | 2017-07-28 | 徐州徐工挖掘机械有限公司 | A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin |
-
2017
- 2017-05-10 CN CN201720513247.2U patent/CN207130807U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988373A (en) * | 2017-05-10 | 2017-07-28 | 徐州徐工挖掘机械有限公司 | A kind of positioning and locking device of ultra-large type hydraulic crawler excavator crawler belt bearing pin |
| CN106988373B (en) * | 2017-05-10 | 2022-08-23 | 徐州徐工矿业机械有限公司 | Positioning and anti-loosening device for track pin shaft of ultra-large hydraulic excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190412 Address after: 221005 39 Gaoxin Road, Xuzhou Economic Development Zone, Jiangsu Patentee after: XUZHOU XCMG MINING MACHINERY Co.,Ltd. Address before: No. 39 Gaoxin Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province, 221100 Patentee before: XCMG EXCAVATOR MACHINERY Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180323 Effective date of abandoning: 20220823 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180323 Effective date of abandoning: 20220823 |