CN207191208U - Excavator tensioner guides wheel assembly - Google Patents
Excavator tensioner guides wheel assembly Download PDFInfo
- Publication number
- CN207191208U CN207191208U CN201721251823.7U CN201721251823U CN207191208U CN 207191208 U CN207191208 U CN 207191208U CN 201721251823 U CN201721251823 U CN 201721251823U CN 207191208 U CN207191208 U CN 207191208U
- Authority
- CN
- China
- Prior art keywords
- plunger axis
- spring
- mandrel
- front apron
- rolling bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Excavator tensioner guides wheel assembly, including fuel feeding valve, plunger axis, butter cylinder, spring, front apron, guide wheel and guiding wheel support, it is characterized in that one end of plunger axis is provided with fuel feeding valve, the shaft shoulder is provided with plunger axis, axial back-up ring is provided with the shaft shoulder, the other end of plunger axis is arranged on butter cylinder interior, butter cylinder includes cylinder body and spindle nose, adjusting nut, locking nut and stay I are provided with cylinder body, front apron is provided with spindle nose, spring is provided between front apron and adjusting nut, the usefulness of this practical full mold is：By impulsive force snubber caused by crawler belt, the reliable realization of tensioner function greatly ensure that；The adjustment of initial tension of spring is simply and reliablely realized, regulation of the swelling device greatly met to required initial tension of spring under varying environment.
Description
Technical field
It the utility model is related to engineering mechanical device technical field, and in particular to a kind of to be used for the excavator that tonnage is 3 tons
Tensioner guides wheel assembly.
Background technology
The head of 3 tons of excavator is small, and walking work is flexible, is widely used in afforestation, the construction of narrow,
Swelling device often carries out the tensioner of crawler belt from hydraulic jack and the hybrid swelling device of spring, when crawler belt needs tensioner,
Grease is supplemented into the butter cylinder of swelling device, swelling device action is carried out tensioner, then impulsive force caused by crawler belt passes through
Cross guide wheel and pass to spring in swelling device, the spring produces corresponding deformation and absorbs its energy therewith, while will impact
Power is reduced to bottom line, so that it is guaranteed that the crawler belt stable working, but due to the difference of its working environment, caused by crawler belt
Impulsive force is also not quite similar, in order to meet more harsh working environment, it usually needs is replaced by the bigger spring of coefficient of elasticity
To ensure having larger pretightning force, at this moment just need to carry out swelling device integral demounting, operation is relatively complicated, in addition guide wheel
The general frame mode for coordinating bushing using float grease seal, this is complicated, and float grease seal groove needs lathe in machining, processing
Difficulty is big, and float grease seal structure also needs to do air-tight test, and assembly process is more and assembling is inconvenient.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of simple in construction, practical, and pretightning force can
The excavator tensioner guiding wheel assembly of tune.
The utility model is realized using following technical scheme：Described excavator tensioner guiding wheel assembly, including note
Fuel tap, plunger axis, butter cylinder, spring, front apron, guide wheel and guiding wheel support, it is characterised in that one end of the plunger axis
Fuel feeding valve is provided with, the shaft shoulder is provided with the plunger axis at fuel feeding valve, axial back-up ring, plunger axis is provided with the shaft shoulder
The other end be arranged on butter cylinder interior, the oiling passage connected with butter cylinder interior, the butter cylinder are provided with plunger axis
Including cylinder body and spindle nose, the right-hand member of the cylinder body is provided with spring base, and external screw thread is provided with the outer surface of cylinder body, is set on cylinder body
Adjusting nut, locking nut and stay I are equipped with, spindle nose is arranged on the left end of cylinder body, front apron, front apron are provided with spindle nose
It is provided with spring between adjusting nut, the both sides of front apron are symmetrically arranged with guiding wheel support, between the guiding wheel support
Erection has mandrel, and guide wheel is provided with the mandrel, and spacer, the mud of predetermined number are provided between the mandrel and guide wheel
Water oil sealing, rolling bearing and circlip.
Further, the quantity of the rolling bearing is 3, and 3 rolling bearings are disposed in parallel in the middle part of mandrel,
The inner ring of rolling bearing is in contact with mandrel, and the outer ring of rolling bearing is in contact with guide wheel, and the outside of rolling bearing is symmetrically set
The circlip spacing for the outer ring to rolling bearing is equipped with, spacer, the spacer are provided with the outside of the circlip
It is set in mandrel, one end of spacer is in contact with the inner ring of rolling bearing, and the other end of spacer is in contact with guiding wheel support,
Muddy water oil sealing is provided with spacer.
Further, support ring and sealing ring are provided between the spring base and plunger axis.
Further, the axis head nut and stay II for fastening front apron and spindle nose are provided with the spindle nose.
Further, the fuel feeding valve is arranged to the rotatable structure type of grease nipple.
Further, the mandrel is connected by way of positioning pin connection with guiding wheel support.
Further, the mode that the front apron is connected by screw is connected with guiding wheel support.
Usefulness of the present utility model is：Spring greatly ensure that impulsive force snubber caused by crawler belt
The reliable realization of tensioner function, reliability are high；The setting of adjusting nut and locking nut, simply and reliablely realizes spring pre-tightening
The adjustment of power, regulation of the swelling device greatly met to required initial tension of spring under varying environment, practicality greatly enhance；
Difference and the mode of float grease seal in the prior art, muddy water oil sealing parts machining is easy, simple in construction, and assembly process is simple,
Assembling is easy, while the setting of spacer and circlip, effectively limits the width of tensioner guiding wheel assembly；Support ring is set
Put, ensure that the axiality between butter cylinder and plunger axis effectively prevent because the problems such as pressure is uneven causes sealing ring conquassation
So as to cause the generation of leakage.
Brief description of the drawings
The utility model excavator tensioner guiding wheel assembly will be described in further detail with reference to Figs..
Accompanying drawing 1 is main view broken section structural representation of the present utility model；
Accompanying drawing 2 is vertical view broken section structural representation of the present utility model.
In accompanying drawing, 1, fuel feeding valve, 2, plunger axis, 201, oiling passage, 3, axial back-up ring, 4, spring base, 5, butter cylinder,
501st, cylinder body, 502, spindle nose, 6, adjusting nut, 7, locking nut, 8, stay I, 9, sealing ring, 10, support ring, 11, spring,
12nd, front apron, 13, axis head nut, 14, stay II, 15, screw, 16, guiding wheel support, 17, guide wheel, 18, mandrel, 19,
Spacer, 20, muddy water oil sealing, 21, rolling bearing, 22, circlip, 23, alignment pin.
Embodiment
The utility model is described in further detail with reference to accompanying drawing 1 and accompanying drawing 2, so that the public preferably grasps this practicality newly
The implementation of type, the utility model specific embodiment are：
The excavator tensioner guides wheel assembly, including fuel feeding valve 1, plunger axis 2, butter cylinder 5, spring 11, front apron 12,
Guide wheel 17 and guiding wheel support 16, it is characterised in that one end of the plunger axis 2 is provided with fuel feeding valve 1, at fuel feeding valve 1
Plunger axis 2 on be provided with the shaft shoulder, axial back-up ring 3 is provided with the shaft shoulder, the other end of plunger axis 2 is arranged on butter cylinder 5
Inside, the oiling passage 201 connected with the inside of butter cylinder 5 is provided with plunger axis 2, and the butter cylinder 5 includes cylinder body 501 and axle
First 502, the right-hand member of the cylinder body 501 is provided with spring base 4, is provided with external screw thread on the outer surface of cylinder body 501, on cylinder body 501
Adjusting nut 6, locking nut 7 and stay I 8 are provided with, spindle nose 502 is arranged on the left end of cylinder body 501, set on spindle nose 502
There is front apron 12, spring 11 is provided between front apron 12 and adjusting nut 6, the both sides of front apron 12 are symmetrically arranged with guide wheel
Support 16, it is described guiding wheel support 16 between set up have mandrel 18, guide wheel 17, the mandrel 18 are provided with the mandrel 18
Spacer 19, muddy water oil sealing 20, rolling bearing 21 and the circlip 22 of predetermined number are provided between guide wheel 17.
Further, the quantity of the rolling bearing 21 is 3, and 3 rolling bearings 21 are disposed in parallel in mandrel 18
Between position, the inner ring of rolling bearing 21 is in contact with mandrel 18, and the outer ring of rolling bearing 21 is in contact with guide wheel 17, the axis of rolling
The outside for holding 21 is symmetrically arranged with the circlip 22 spacing for the outer ring to rolling bearing 21, the circlip 22 it is outer
Side is provided with spacer 19, and the spacer 19 is set in mandrel, and one end of spacer 19 is in contact with the inner ring 21 of rolling bearing, every
The other end of set 19 is in contact with guiding wheel support 16, and muddy water oil sealing 20 is provided with spacer 19.
Further, support ring 10 and sealing ring 9 are provided between the spring base 4 and plunger axis 2.
Further, the axis head nut 13 and lock for fastening front apron 12 and spindle nose 502 are provided with the spindle nose 502
Tight piece II 14, it effectively prevent the relative rotation between spindle nose 502 and front apron 12 and loosen the generation of problem.
Further, the fuel feeding valve 1 is arranged to the rotatable structure type of grease nipple, convenient to be noted using grease gun to it
Enter butter fat.
Further, the mandrel 18 is connected by way of alignment pin 23 connects with guiding wheel support 16.
Further, the front apron 12 is connected by way of screw 15 connects with guiding wheel support 16.
Operation principle of the present utility model is：The setting of spring 11, by impulsive force snubber caused by crawler belt, first
When the channeled wheel 17 of its caused impulsive force is passed to spring 11 by crawler belt, when impulsive force is smaller, spring 11 completely can be with
Absorbed, when impulsive force is larger, spring 11 still has the impulsive force of fraction after impulsive force is absorbed, it is necessary to increase
The pretightning force of spring 11, the setting of adjusting nut 6 and locking nut 7, the adjustment of the pretightning force of spring 11 is simply and reliablely realized,
Stay I 8 is unclamped first, turns adjusting nut 6, increases the pretightning force of spring 11, is then turning locking nut 7, making lock
Tight nut 7 and adjusting nut 6 are closely adjacent, then lock locking nut 7 with stay I 8 again, pass through adjusting nut 6 and locking
The setting of the pairs of anti-loose nut structure of nut 7, along with the setting of stay I 8, it effectively prevent the axial direction of adjusting nut 6
Play, by changing the pretightning force of spring 11, the swelling device greatly met is to required initial tension of spring under varying environment
Regulation, practicality greatly enhances, and certainly when the pretightning force of spring 11 is excessive, makes adjusting nut 6 and locking by the above method
Nut 7 turns in the opposite direction；Difference and the mode of float grease seal in the prior art, the parts of muddy water oil sealing 20 add
Work is easy, simple in construction, and assembly process is simple, and assembling is easy, while the setting of spacer 19 and circlip 22, effectively limits
Tensioner guides the width of wheel assembly；The setting of support ring 10, it ensure that the axiality between butter cylinder 5 and plunger axis 2 is effectively anti-
Stopped because of the problems such as pressure is uneven so that the conquassation of sealing ring 9 so as to cause leakage generation.
It is new not departing from this practicality according to teaching of the present utility model when for the ordinary skill in the art
In the case of the principle and spirit of type, the changes, modifications, replacement and the modification that are carried out to embodiment still fall within the utility model
Protection domain within.
Claims (7)
1. excavator tensioner guides wheel assembly, including fuel feeding valve（1）, plunger axis（2）, butter cylinder（5）, spring（11）, front apron
（12）, guide wheel（17）With guiding wheel support（16）, it is characterised in that the plunger axis（2）One end be provided with fuel feeding valve（1）,
Close to fuel feeding valve（1）The plunger axis at place（2）On be provided with the shaft shoulder, axial back-up ring is provided with the shaft shoulder（3）, plunger axis（2）
The other end be arranged on butter cylinder（5）Inside, plunger axis（2）Inside it is provided with and butter cylinder（5）The oiling passage of inside connection
（201）, the butter cylinder（5）Including cylinder body（501）And spindle nose（502）, the cylinder body（501）Right-hand member be provided with spring base
（4）, cylinder body（501）Outer surface on be provided with external screw thread, cylinder body（501）On be provided with adjusting nut（6）, locking nut（7）
With stay I（8）, spindle nose（502）It is arranged on cylinder body（501）Left end, spindle nose（502）On be provided with front apron（12）, front
Plate（12）And adjusting nut（6）Between be provided with spring（11）, front apron（12）Both sides be symmetrically arranged with guiding wheel support
（16）, the guiding wheel support（16）Between set up have mandrel（18）, the mandrel（18）On be provided with guide wheel（17）, it is described
Mandrel（18）And guide wheel（17）Between be provided with the spacer of predetermined number（19）, muddy water oil sealing（20）, rolling bearing（21）With
Circlip（22）.
2. excavator tensioner according to claim 1 guides wheel assembly, it is characterised in that the rolling bearing（21）Number
Measure as 3,3 rolling bearings（21）It is disposed in parallel in mandrel（18）Middle part, rolling bearing（21）Inner ring and mandrel
（18）It is in contact, rolling bearing（21）Outer ring and guide wheel（17）It is in contact, rolling bearing（21）Outside be symmetrically arranged with
For to rolling bearing（21）The spacing circlip in outer ring（22）, the circlip（22）Outside be provided with spacer
（19）, the spacer（19）It is set in mandrel（18）On, spacer（19）One end and rolling bearing（21）Inner ring be in contact, every
Set（19）The other end with guiding wheel support（16）It is in contact, spacer（19）On be provided with muddy water oil sealing（20）.
3. excavator tensioner according to claim 1 guides wheel assembly, it is characterised in that the spring base（4）And plunger axis
（2）Between be provided with support ring（10）And sealing ring（9）.
4. excavator tensioner according to claim 1 guides wheel assembly, it is characterised in that the spindle nose（502）On be provided with
For fastening front apron（12）And spindle nose（502）Axis head nut（13）With stay II（14）.
5. excavator tensioner according to claim 1 guides wheel assembly, it is characterised in that the fuel feeding valve（1）It is arranged to yellow
The rotatable structure type of oil nozzle.
6. excavator tensioner according to claim 1 guides wheel assembly, it is characterised in that the mandrel（18）Pass through positioning
Pin（23）The mode of connection and guiding wheel support（16）It is connected.
7. excavator tensioner according to claim 1 guides wheel assembly, it is characterised in that the front apron（12）Pass through spiral shell
Nail（15）The mode of connection and guiding wheel support（16）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251823.7U CN207191208U (en) | 2017-09-27 | 2017-09-27 | Excavator tensioner guides wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251823.7U CN207191208U (en) | 2017-09-27 | 2017-09-27 | Excavator tensioner guides wheel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207191208U true CN207191208U (en) | 2018-04-06 |
Family
ID=61787339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721251823.7U Expired - Fee Related CN207191208U (en) | 2017-09-27 | 2017-09-27 | Excavator tensioner guides wheel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207191208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108404324A (en) * | 2018-04-09 | 2018-08-17 | 捷达消防科技（苏州）股份有限公司 | Fire fighting truck with walking manner selection function |
| WO2021139538A1 (en) * | 2020-01-09 | 2021-07-15 | 浙江双友物流器械股份有限公司 | Layering device for carriage |
-
2017
- 2017-09-27 CN CN201721251823.7U patent/CN207191208U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108404324A (en) * | 2018-04-09 | 2018-08-17 | 捷达消防科技（苏州）股份有限公司 | Fire fighting truck with walking manner selection function |
| CN108404324B (en) * | 2018-04-09 | 2022-12-30 | 捷达消防科技（苏州）股份有限公司 | Fire engine with walking mode selection function |
| WO2021139538A1 (en) * | 2020-01-09 | 2021-07-15 | 浙江双友物流器械股份有限公司 | Layering device for carriage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207191208U (en) | Excavator tensioner guides wheel assembly | |
| WO2019144507A1 (en) | Mechanical downhole tool for vertical well drilling using screw cam | |
| CN203599202U (en) | Roller axial adjustment mechanism | |
| CN105041757B (en) | Double-thread screw-type swing hydraulic cylinder with piston and use method thereof | |
| CN208024304U (en) | A kind of big channel elasticity compensation proof-wear sucker rod centralising device | |
| CN203175552U (en) | Telescopic device for cutting part of heading machine | |
| CN107202046A (en) | A kind of plunger combination oil cylinder with guide sleeve axle | |
| CN204200762U (en) | Mining equipment feed cylinder | |
| CN208010896U (en) | A kind of gear-box | |
| CN214490157U (en) | Dynamic pressure main shaft | |
| CN205684486U (en) | A kind of milling train deflector roll | |
| CN105935855A (en) | Repairing method for end face tooth rolling roll shaft of novel three-roll planetary rolling mill | |
| CN113027748A (en) | Real-time compensation limiter for abrasion of conical screw pump | |
| CN205764783U (en) | A kind of specific purpose tool of the installation and removal of beam straightening roller | |
| CN202251732U (en) | Planet wheel speed reducer provided with wear-resistant part | |
| CN219770037U (en) | Wheel body and mounting tool thereof | |
| CN215750952U (en) | Ball pressing device for ball pressing machine | |
| CN206377020U (en) | A kind of plungers pump plunger | |
| CN105089017A (en) | Shaft and water stopping device for fixed wheel of sluice gate | |
| CN208281359U (en) | A kind of automobile hub bearing | |
| CN202300230U (en) | Correction device for polished rod of pumping well | |
| CN205713956U (en) | A kind of apply the unit head of four fluid motor-driven on anchoring drilling machine | |
| CN207103918U (en) | A kind of car wheel oil filling hole drill jig | |
| CN218971674U (en) | Angular contact ball bearing structure with adjustable pretightening force | |
| CN217380663U (en) | Wear-proof device for gate-adjusting LVDT |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20210927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |