CN207243848U - A kind of non-maintaining shield machine trailer wheels - Google Patents
A kind of non-maintaining shield machine trailer wheels Download PDFInfo
- Publication number
- CN207243848U CN207243848U CN201721332792.8U CN201721332792U CN207243848U CN 207243848 U CN207243848 U CN 207243848U CN 201721332792 U CN201721332792 U CN 201721332792U CN 207243848 U CN207243848 U CN 207243848U
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- China
- Prior art keywords
- axis pin
- trailer wheels
- shield machine
- locking plate
- self
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Abstract
The utility model discloses a kind of non-maintaining shield machine trailer wheels, including wheel carrier, trailer wheels, self-lubricating bearing, axis pin, axis pin both ends are both provided with retention mechanism, the retention mechanism includes locking plate and screw, the locking plate is arranged on the end face of axis pin, and it is fitted with axis pin portion end surface, locking plate is fixed on wheel carrier by the screw, self-lubricating bearing is provided between the axis pin and trailer wheels, the pulverulent lubricant containing molybdenum disulfide component is provided between the self-lubricating bearing and axis pin, so as to form one layer of lubricating film；The non-maintaining shield machine trailer solves shield machine in underground construction because not timely examination and maintenance trailer wheels lubrication causes locking.
Description
Technical field
It the utility model is related to a kind of non-maintaining shield machine trailer wheels.
Background technology
The single trailer of shield machine constructed in city inner orbit traffic is constructed in the shield of inter-city rail transit from 30t is weighed about
The single trailer of structure machine weighs about 50t certainly.Higher due to conducting oneself with dignity, static load pressure is about 300~500N/mm2, cause bearing and axis pin it
Between frictional force it is larger, and space around trailer wheels is small, quantity is more, and it is inconvenient to cause to safeguard.In construction, often neglect
The slightly maintenance of trailer wheels, it is therefore desirable to which trailer wheels are lubricated.
At present, trailer wheels lubricating system is broadly divided into butter filler formula and self-lubricating bearing.
Butter filler formula is to fill butter to axis pin surface by grease nipple and passage, achievees the purpose that lubrication.Its spy
Putting is：
1. technology maturation, has a wide range of application；
2. underground construction temperature is higher, butter easily melts loss, oxidation and volatilization, need to irregularly fill butter；
3. friction coefficient is higher, the friction coefficient added between copper and steel after butter is 0.1-0.12；
4. shield machine is in the tunneling process of underground as do not filled butter in time or not checking in time, safeguard trailer wheels lube system
System, can cause trailer wheels locking, in turn result in parts damages, or even delay the duration
The internal layer of self-lubricating bearing is high molecular composite material, and its feature is：
1. butter need not be added, the risk of unlubricated dose of loss；
2. friction coefficient is unstable, the friction coefficient between steel is 0.08-0.2, need to inspect periodically abrasion situation.
Both technologies can not all realize non-maintaining and acquisition well stable lubrication at the same time.
Utility model content
The defects of the purpose of this utility model is to solve in the prior art, there is provided one kind solves shield machine in underground
Because not timely examination and maintenance trailer wheels lubrication causes the non-maintaining shield machine trailer wheels of locking during construction, to solve the prior art
Present in problem.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of non-maintaining shield machine trailer wheels, including wheel carrier, trailer wheels, self-lubricating bearing, axis pin, axis pin both ends are respectively provided with
Have retention mechanism, the retention mechanism includes locking plate and screw, and the locking plate is arranged on the end face of axis pin, and with axis pin part
End face is fitted, and locking plate is fixed on wheel carrier by the screw, and self-lubricating axis is provided between the axis pin and trailer wheels
Hold, the pulverulent lubricant containing molybdenum disulfide component is provided between the self-lubricating bearing and axis pin, so as to form one layer
Lubricating film.
In order to further realize the utility model, the particle diameter of the lubricant is 20~30 microns.
In order to further realize the utility model, the screw is provided with two, and two screws are separately positioned on locking plate
Upper and lower ends.
Beneficial effect
(1) the utility model has one layer of lubricating film during trailer wheels travel between bearing and axis pin, powdered
Lubricant, will not be lost in and volatilize, it can be achieved that non-maintaining and splendid lubrication, non-maintaining due to realizing, reduce manpower
Input, while eliminate caused by locking parts damages and delay the risk of duration.
(2) particle diameter in lubricant can produce certain influence to friction coefficient and stability, and the utility model is used
20~30 microns be optimal selection.
Brief description of the drawings
Fig. 1 is the structure diagram of the non-maintaining shield machine trailer wheels of the utility model；
Fig. 2 is the A-A of the non-maintaining shield machine trailer wheels of the utility model to diagram.
Description of reference numerals：
1st, wheel carrier；2nd, trailer wheels；3rd, self-lubricating bearing；4th, axis pin；5th, locking plate；6th, screw.
Embodiment
The utility model is further described in detail below in conjunction with the accompanying drawings, these attached drawings are simplified signal
Figure, only illustrates the basic structure of the utility model, the direction of this specific implementation is using Fig. 1 directions as standard in a schematic way.
Embodiment one
As shown in Figure 1, the non-maintaining shield machine trailer wheels of the utility model include wheel carrier 1, trailer wheels 2, self-lubricating bearing 3,
Axis pin 4, wherein：
Trailer wheels 2 are arranged on wheel carrier 1 and are fixedly connected by axis pin 4, and 4 both ends of axis pin are both provided with retention mechanism, tightly
Gu mechanism includes locking plate 5 and screw 6, locking plate 5 is arranged on the end face of axis pin 4, and is fitted with 4 portion end surface of axis pin,
Locking plate 5 is fixed on wheel carrier 1 by screw 6, and screw 6 is provided with two, and two screws 6 are separately positioned on the upper and lower ends of locking plate 5,
Self-lubricating bearing 3 is provided between axis pin 4 and trailer wheels 2, is provided between self-lubricating bearing 3 and axis pin 4 containing molybdenum disulfide
The pulverulent lubricant of component, so as to form one layer of lubricating film.
The particle diameter of the lubricant is 20~30 microns；
The lubricant is prepared by following weight fraction：Particle diameter is 20~30 microns of 88 parts of powdered molybdenum disulfide,
Particle diameter is 20~30 microns of 2~3 parts of pretreatment nano aluminium oxide, and particle diameter is 20~30 microns of 8~12 parts of polytetrafluoroethylene (PTFE).
The preparation method of the lubricant comprises the following steps：
(1) lanthanum chloride, EDETATE SODIUM are added to the water, sodium chloride, EDETATE SODIUM, the mass ratio of water are 1:0.5:30, mix
Close uniformly after obtain lanthanum chloride solution, will nano aluminium oxide add lanthanum chloride solution in, immersion 2 it is small when after take out, use deionization
Water rinse well be placed in vacuum drying chamber at 80 DEG C dry 3 it is small when, pretreatment nano aluminium oxide is obtained after grinding；
(2) each component is weighed according to parts by weight, molybdenum disulfide, polytetrafluoroethylene (PTFE) is placed in vacuum drying chamber, 80 DEG C
Take out, be added to together with pretreatment nano aluminium oxide in the acetone soln that mass fraction is 10%, ultrasound point after when drying 2 is small
Dissipate 1 it is small when after take out, rinsed well with deionized water be placed in vacuum drying chamber at 80 DEG C dry 3 it is small when, obtained after grinding
Lubricant.
Embodiment 2
The lubricant is prepared by the component of following parts by weight：Particle diameter is 20~30 microns of powdered molybdenum disulfide
90 parts, particle diameter is 20~30 microns of 2 parts of pretreatment nano aluminium oxide, and particle diameter is 20~30 microns of 8 parts of polytetrafluoroethylene (PTFE).
The preparation method of the lubricant is in the same manner as in Example 1.
Embodiment 3
The lubricant is prepared by the component of following parts by weight：Particle diameter is 20~30 microns of powdered molybdenum disulfide
85 parts, particle diameter is 20~30 microns of 3 parts of pretreatment nano aluminium oxide, and particle diameter is 20~30 microns of 12 parts of polytetrafluoroethylene (PTFE).
The preparation method of the lubricant is in the same manner as in Example 1.
Embodiment 4
The lubricant is prepared by the component of following parts by weight：Particle diameter is 20~30 microns of powdered molybdenum disulfide
87 parts, particle diameter is 20~30 microns of 2 parts of pretreatment nano aluminium oxide, and particle diameter is 20~30 microns of 11 parts of polytetrafluoroethylene (PTFE).
The preparation method of the lubricant is in the same manner as in Example 1.
Comparative Examples 1
With embodiment 1 except that the component of lubricant does not include pretreatment nano aluminium oxide, other components and its system
Preparation Method is same as Example 1.
Comparative Examples 2
With embodiment 1 except that the component of lubricant does not include polytetrafluoroethylene (PTFE), other components and preparation method thereof
It is same as Example 1.
Comparative Examples 3
With embodiment 1 except that the pretreatment nano aluminium oxide of the component of lubricant replaces with undressed nanometer
Aluminium oxide, other components are same as Example 1, not to the pre-treatment step of nano aluminium oxide in preparation method.
Comparative example
The Chinese patent of Application No. CN201410441884.4.
Experimental example one：PVvalue testing
Using the lubrication made by high-speed loop block abrasion tester testing example 1-4, Comparative Examples 1-3 and comparative example
The friction coefficient of film, test result are as shown in table 1：
Table 1
As seen from Table 1, it is many to be below comparative example for the friction coefficient of the utility model embodiment 1-4, wherein embodiment 1
Friction coefficient it is minimum.The constituent part of Comparative Examples 1-3 is different from embodiment 1, wherein the friction coefficient of Comparative Examples 2
It is improved to some extent, illustrates that polytetrafluoroethylene (PTFE) can effectively reduce the friction coefficient of lubricant；The friction of Comparative Examples 1,3
Coefficient maintains an equal level with embodiment 1-4, influence of the species for illustrating to pre-process nano aluminium oxide and nano aluminium oxide to friction coefficient
It is very small.
Experimental example two：Resistance to low temperature is tested
Each lubricant is made lubricating film to be placed in -50 DEG C of sealed environment, 2 it is small when after take out observation lubricant film surface
Situation, test result are as shown in table 2：
Table 2
As seen from Table 2, the resistance to low temperature of the utility model embodiment 1-4 is significantly better than comparative example.Comparative Examples
The constituent part of 1-3 is different from embodiment 1, and the resistance to low temperature of wherein Comparative Examples 2 is poor, and it is to carry to illustrate polytetrafluoroethylene (PTFE)
The key of high lubricant resistance to low temperature；The resistance to low temperature and embodiment 1-4 of Comparative Examples 1,3 maintain an equal level, and illustrate pretreatment
Influence of the species of nano aluminium oxide and nano aluminium oxide to resistance to low temperature is very small.
Experimental example three：Load-carrying properties are tested
The bearing capacity of lubricating film with reference to made by HB6688-1992 tests each lubricant, test result are as shown in table 3：
| Bearing capacity (N) | |
| Embodiment 1 | 8600 |
| Embodiment 2 | 8500 |
| Embodiment 3 | 8550 |
| Embodiment 4 | 8520 |
| Comparative Examples 1 | 8390 |
| Comparative Examples 2 | 8580 |
| Comparative Examples 3 | 8470 |
| Comparative example | 8330 |
Table 3
As seen from Table 3, it is many to be above comparative example for the bearing capacity of the utility model embodiment 1-4, illustrates that this practicality is new
Type has preferable load-carrying properties, and the load-carrying properties of wherein embodiment 1 are best.The constituent part of Comparative Examples 1-3 and implementation
Example 1 is different, and wherein the bearing capacity of Comparative Examples 2 maintains an equal level with embodiment 1-4, illustrates influence of the polytetrafluoroethylene (PTFE) to load-carrying properties
It is very small；The range of decrease of the bearing capacity of Comparative Examples 1 is larger, illustrate to pre-process influence of the nano aluminium oxide to load-carrying properties compared with
Greatly；The range of decrease of the bearing capacity of Comparative Examples 3 is smaller, illustrate pre-treatment step can effectively improve nano aluminium oxide its with other groups
/ compatibility.
Experimental example four：Heat conductivility is tested
The thermal conductivity factor of each lubricant is tested with reference to ASTM D5470, test result is as shown in table 3：
Table 4
As seen from Table 4, it is many to be above comparative example for the thermal conductivity factor of the utility model embodiment 1-4, illustrates this practicality
New to have preferable heat conductivility, the heat conductivility of wherein embodiment 1 is best.The constituent part and reality of Comparative Examples 1-3
It is different to apply example 1, wherein the thermal conductivity factor of Comparative Examples 2 maintains an equal level with embodiment 1-4, illustrates polytetrafluoroethylene (PTFE) to heat conductivility
Influence very small；The range of decrease of the thermal conductivity factor of Comparative Examples 1 is very big, is only slightly higher than comparative example, illustrates to pre-process nano oxygen
It is very big to change influence of the aluminium to heat conductivility；The range of decrease of the bearing capacity of Comparative Examples 3 is less than Comparative Examples 1, illustrates to receiving
The pre-treatment step of rice aluminium oxide can effectively improve its compatibility between other components.
The foregoing is merely the better embodiment of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, there may be local small structural modification in implementation process, if various changes or modifications to the utility model are not
Depart from the spirit and scope of the utility model, and belong within the scope of the claims and equivalents of the utility model, then originally
Utility model is also intended to include these modification and variations.
Claims (3)
1. a kind of non-maintaining shield machine trailer wheels, it is characterised in that including wheel carrier, trailer wheels, self-lubricating bearing, axis pin, axis pin
Both ends are both provided with retention mechanism, and the retention mechanism includes locking plate and screw, and the locking plate is arranged on the end face of axis pin, and
It is fitted with axis pin portion end surface, locking plate is fixed on wheel carrier by the screw, is set between the axis pin and trailer wheels
There is self-lubricating bearing, the pulverulent lubricant containing molybdenum disulfide component is provided between the self-lubricating bearing and axis pin, from
And form one layer of lubricating film.
2. non-maintaining shield machine trailer wheels according to claim 1, it is characterised in that the particle diameter of the lubricant for 20~
30 microns.
3. non-maintaining shield machine trailer wheels according to claim 1, it is characterised in that the screw is provided with two, and two
A screw is separately positioned on the upper and lower ends of locking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332792.8U CN207243848U (en) | 2017-10-16 | 2017-10-16 | A kind of non-maintaining shield machine trailer wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332792.8U CN207243848U (en) | 2017-10-16 | 2017-10-16 | A kind of non-maintaining shield machine trailer wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207243848U true CN207243848U (en) | 2018-04-17 |
Family
ID=61882864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721332792.8U Expired - Fee Related CN207243848U (en) | 2017-10-16 | 2017-10-16 | A kind of non-maintaining shield machine trailer wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207243848U (en) |
-
2017
- 2017-10-16 CN CN201721332792.8U patent/CN207243848U/en not_active Expired - Fee Related
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| 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: 20180417 Termination date: 20201016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |