CN206988248U - A kind of positioner of heavy tracked vehicles crawler belt bearing pin - Google Patents
A kind of positioner of heavy tracked vehicles crawler belt bearing pin Download PDFInfo
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- CN206988248U CN206988248U CN201720513819.7U CN201720513819U CN206988248U CN 206988248 U CN206988248 U CN 206988248U CN 201720513819 U CN201720513819 U CN 201720513819U CN 206988248 U CN206988248 U CN 206988248U
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- bearing pin
- pin
- cydariform
- crawler belt
- screw
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Abstract
The utility model provides a kind of positioner of heavy tracked vehicles crawler belt bearing pin, including creeper tread（1）, bearing pin（4）, pin（2）With cydariform screw（3）, the bearing pin（4）It is arranged in pin-and-hole, the pin（2）Vertical is inserted in creeper tread（1）Mounting hole, the cydariform screw（3）It is screwed into pin（2）Internal thread in it is matched.Compared with prior art, the utility model is positioned using cydariform screw to the axial direction of crawler belt bearing pin, avoid the influence to spacing place contact surface such as creeper tread and bearing pin deformation after manufacture Form and position error, alignment error and long-term use, all the time ideal contact surface can bears the play power of bearing pin vertically, avoid causing chip off-falling or part failure because the stupefied contact in side or extruding produce stress raisers, and effectively prevent the loose or dislocation of bearing pin.The positioning and locking device, it is simple in construction, it is convenient to mount and dismount, reliability is high.
Description
Technical field
It the utility model is related to a kind of positioner of heavy tracked vehicles crawler belt bearing pin, specifically a kind of ultra-large type liquid
The positioner of crawler of excavator bearing pin is pressed, belongs to the running gear technical field of heavy engineering machinery crawler belt.
Background technology
The running gear of heavy tracked vehicles is typically made up of crawler belt, driving wheel, thrust wheel, upper track wheel and guide wheel.
Wherein crawler belt is core component, is the carrier that the driving force of running motor is converted to complete machine walking power.Heavy crawler
The creeper tread of formula vehicle is generally one piece casting type, is coupled with bearing pin through pin-and-hole, creeper tread and bearing pin stress during walking
It is very big, it will be deformed in the course of time.Therefore, the reliability of crawler belt bearing pin positioning largely determines crawler travel
The reliability of device.
Traditional bearing pin localization method, it is that only installation customizes nut on the creeper tread near end part of pin shaft mostly, it is worked
Bearing pin can rotate in a circumferential direction in journey and axial float, end touching location nut are serious to end part of pin shaft and location nut generation
Pin roll end face is arrived in the stupefied conflict of abrasion, the especially bad one side of nut initial position, and wear problem after long-term use is more tight
Weight, and anti-loosing effect is bad, bearing pin comes off higher with the risk of complete machine forfeiture ability to act；In addition, positioner is mostly once
Property use, when need to untie the crawler belt of connection, then must cut off positioner, waste time and energy.
Utility model content
In view of the above-mentioned problems of the prior art, the utility model provides a kind of heavy tracked vehicles crawler belt bearing pin
Positioner, axial limiting is carried out to bearing pin using cydariform screw, avoids manufacture Form and position error, alignment error and long-term
Using the influence to spacing place contact surface such as rear creeper tread and bearing pin deformation, there can be ideal contact surface to bear bearing pin all the time
Play power vertically, avoid causing chip off-falling or part failure because the stupefied contact in side or extruding produce stress raisers, and have
Effect prevents the loose or dislocation of bearing pin.The positioning and locking device, it is simultaneous well while crawler unit reliability is ensured
Cared for the maintenance problem during equipment use, and it is compact-sized, be convenient to mount and dismount, service life length, reliability is high.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：
A kind of positioner of heavy tracked vehicles crawler belt bearing pin, it is characterised in that including creeper tread 1, bearing pin 4, pin
Nail 2 and cydariform screw 3, the bearing pin 4 are arranged in pin-and-hole, the vertical mounting hole for being inserted in creeper tread 1 of the pin 2, institute
State cydariform screw 3 be screwed into it is matched in the internal thread of pin 2.
A kind of positioner of foregoing heavy tracked vehicles crawler belt bearing pin, it is characterised in that the head shape of pin 2
Shape is that outer-hexagonal is received the form of body combination, and inside is hollow and carry fine thread.
The positioner of foregoing a kind of heavy tracked vehicles crawler belt bearing pin, it is characterised in that the pin face of cylinder is connecing
The position on nearly head is provided with the deep gouge of trapezoidal shape.
A kind of positioner of foregoing heavy tracked vehicles crawler belt bearing pin, it is characterised in that the cydariform screw 3,
External edge of head is cydariform face, and the lower section on head carries annular boss, to improve screw thread pair pretensioning effect, screw thread be with pin 2
The closely-pitched external screw thread that screw thread is engaged.
The positioner of foregoing a kind of heavy tracked vehicles crawler belt bearing pin, it is characterised in that the cydariform screw 3
The control of the distance between end face of cydariform outer rim and bearing pin 4 is in 2~3mm, it is allowed to which bearing pin 4 is axially having certain shifting amount, i.e.,
The releasable impact of bearing pin 4 vertically, also allows for bearing pin 4 and more uniformly wears.
The positioner of foregoing a kind of heavy tracked vehicles crawler belt bearing pin, it is characterised in that the cydariform screw 3
Impewdance matching cure process is done in cydariform face, to improve its wearability and service life.
The beneficial effects of the utility model are：Compared with prior art, the utility model uses cydariform screw to track pin
The axial direction of axle is positioned, and is avoided creeper tread and bearing pin after manufacture Form and position error, alignment error and long-term use and is deformed etc.
Influence to spacing place contact surface, there can be ideal contact surface to bear the play power of bearing pin vertically all the time, avoid because of side
Stupefied contact or extruding, which produce stress raisers, causes chip off-falling or part failure, and effectively prevent the loose or dislocation of bearing pin.
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
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is structural representation of the present utility model；
In figure：1st, creeper tread, 2, pin, 3, cydariform screw, 4, bearing pin.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：
A kind of positioner of heavy tracked vehicles crawler belt bearing pin, it is characterised in that including creeper tread 1, bearing pin 4, pin
Nail 2 and cydariform screw 3, the bearing pin 4 are arranged in pin-and-hole, the vertical mounting hole for being inserted in creeper tread 1 of the pin 2, institute
State cydariform screw 3 be screwed into it is matched in the internal thread of pin 2.
A kind of positioner of foregoing heavy tracked vehicles crawler belt bearing pin, it is characterised in that the head shape of pin 2
Shape is that outer-hexagonal is received the form of body combination, and inside is hollow and carry fine thread.
The positioner of foregoing a kind of heavy tracked vehicles crawler belt bearing pin, it is characterised in that the pin face of cylinder is connecing
The position on nearly head is provided with the deep gouge of trapezoidal shape.
A kind of positioner of foregoing heavy tracked vehicles crawler belt bearing pin, it is characterised in that the cydariform screw 3,
External edge of head is cydariform face, and the lower section on head carries annular boss, to improve screw thread pair pretensioning effect, screw thread be with pin 2
The closely-pitched external screw thread that screw thread is engaged.
The positioner of foregoing a kind of heavy tracked vehicles crawler belt bearing pin, it is characterised in that the cydariform screw 3
The control of the distance between end face of cydariform outer rim and bearing pin 4 is in 2~3mm, it is allowed to which bearing pin 4 is axially having certain shifting amount, i.e.,
The releasable impact of bearing pin 4 vertically, also allows for bearing pin 4 and more uniformly wears.
The positioner of foregoing a kind of heavy tracked vehicles crawler belt bearing pin, it is characterised in that the cydariform screw 3
Impewdance matching cure process is done in cydariform face, to improve its wearability and service life.
The device is located at the outboard end of bearing pin 4, vertically-mounted, after two pieces of splits of creeper tread 1, with bearing pin 4 respectively from
Pin-and-hole is sequentially passed through outside to inside, and pin 2 is passed through to the mounting hole of creeper tread 1 from bottom, cydariform screw 3 is then screwed into pin 2
Internal thread in, and tighten, so as to realize to bearing pin axially position.
Screw thread pair between above-mentioned pin 2 and cydariform screw 3 is fine thread pair, has preferable anti-loosing effect.
Above-mentioned cydariform screw 3 is spacing in face of the progress of the end face of bearing pin 4 using cydariform, can avoid Form and position error, alignment error
And the influence to spacing place contact surface such as the deformation of creeper tread 1, flexural deformation of bearing pin 4 after long-term use, can have all the time compared with
The play power of bearing pin 4 vertically is born for preferable contact surface, avoids leading because the stupefied contact in side or extruding produce stress raisers
Cause chip off-falling or part failure.Further, after crawler unit long-term use, even if there occurs larger for creeper tread 1 and bearing pin 4
Deformation, positioning and locking device still can conveniently be dismantled, be easy to disassemble caterpillar system and repaired or changed.
From said structure, the utility model uses carries out axial limiting using cydariform screw to bearing pin, avoids system
The influence to spacing place contact surface such as creeper tread and bearing pin deformation after Form and position error, alignment error and long-term use is made, all the time
There can be ideal contact surface to bear the play power of bearing pin vertically, avoid because the stupefied contact in side or extruding produce local stress collection
In cause chip off-falling or part failure, and effectively prevent the loose or dislocation of bearing pin.The positioning and locking device, ensuring crawler belt row
While walking apparatus reliability, taken into account the maintenance problem during equipment use well, and it is compact-sized, tear open
Unload conveniently, especially suitable for ultra-large type hydraulic crawler excavator.
Claims (6)
- A kind of 1. positioner of heavy tracked vehicles crawler belt bearing pin, it is characterised in that including creeper tread (1), bearing pin (4), Pin (2) and cydariform screw (3), the bearing pin (4) are arranged in pin-and-hole, the pin (2) it is vertical be inserted in creeper tread (1) Mounting hole, the cydariform screw (3) is screwed into matched in the internal thread of pin (2).
- 2. the positioner of a kind of heavy tracked vehicles crawler belt bearing pin according to claim 1, it is characterised in that described Pin (2) head shape is that outer-hexagonal is received the form of body combination, and inside is hollow and carry fine thread.
- A kind of 3. positioner of heavy tracked vehicles crawler belt bearing pin according to claim 2, it is characterised in that pin The face of cylinder is provided with the deep gouge of trapezoidal shape in the position close to head.
- 4. the positioner of a kind of heavy tracked vehicles crawler belt bearing pin according to claim 1, it is characterised in that described Cydariform screw (3), external edge of head are cydariform face, and the lower section on head carries annular boss, to improve screw thread pair pretensioning effect, screw thread It is the closely-pitched external screw thread being engaged with pin (2) internal thread.
- 5. the positioner of a kind of heavy tracked vehicles crawler belt bearing pin according to claim 1, it is characterised in that described The distance between the cydariform outer rim of cydariform screw (3) and the end face of bearing pin (4) are controlled in 2~3mm, it is allowed to which bearing pin (4) is in axial direction There is certain shifting amount, you can the impact of release bearing pin (4) vertically, also allow for bearing pin (4) and more uniformly wear.
- 6. a kind of heavy tracked vehicles crawler belt bearing pin according to claim 1 to 5 wherein any one claim Positioner, it is characterised in that impewdance matching cure process is done in the cydariform face of the cydariform screw (3), to improve its wearability And service life.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513819.7U CN206988248U (en) | 2017-05-10 | 2017-05-10 | A kind of positioner of heavy tracked vehicles crawler belt bearing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513819.7U CN206988248U (en) | 2017-05-10 | 2017-05-10 | A kind of positioner of heavy tracked vehicles crawler belt bearing pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988248U true CN206988248U (en) | 2018-02-09 |
Family
ID=61392941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720513819.7U Active CN206988248U (en) | 2017-05-10 | 2017-05-10 | A kind of positioner of heavy tracked vehicles crawler belt bearing pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988248U (en) |
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2017
- 2017-05-10 CN CN201720513819.7U patent/CN206988248U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190412 Address after: 221005 39 Gaoxin Road, Xuzhou Economic Development Zone, Jiangsu Patentee after: Xuzhou Xugong 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. |
|
| TR01 | Transfer of patent right |